weborf-0.13.3/0000755000175100017510000000000012672253123010070 500000000000000weborf-0.13.3/myio.h0000644000175100017510000000221012671354240011132 00000000000000/* Weborf Copyright (C) 2010 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #ifndef WEBORF_MYIO_H #define WEBORF_MYIO_H #include "types.h" #include "options.h" int fd_copy(int from, int to, off_t count); int dir_remove(char * dir); bool file_exists(char *file); #ifdef WEBDAV int dir_move_copy (char* source, char* dest,int method); int file_copy(char* source, char* dest); int file_move(char* source, char* dest); int dir_move (char* source, char* dest); int dir_copy (char* source, char* dest); #endif #endifweborf-0.13.3/Makefile.in0000644000175100017510000011507212672253114012063 00000000000000# Makefile.in generated by automake 1.15 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2014 Free Software Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. @SET_MAKE@ VPATH = @srcdir@ am__is_gnu_make = { \ if test -z '$(MAKELEVEL)'; then \ false; \ elif test -n '$(MAKE_HOST)'; then \ true; \ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \ true; \ else \ false; \ fi; \ } am__make_running_with_option = \ case $${target_option-} in \ ?) ;; \ *) echo "am__make_running_with_option: internal error: invalid" \ "target option '$${target_option-}' specified" >&2; \ exit 1;; \ esac; \ has_opt=no; \ sane_makeflags=$$MAKEFLAGS; \ if $(am__is_gnu_make); then \ sane_makeflags=$$MFLAGS; \ else \ case $$MAKEFLAGS in \ *\\[\ \ ]*) \ bs=\\; \ sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \ | sed "s/$$bs$$bs[$$bs $$bs ]*//g"`;; \ esac; \ fi; \ skip_next=no; \ strip_trailopt () \ { \ flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \ }; \ for flg in $$sane_makeflags; do \ test $$skip_next = yes && { skip_next=no; continue; }; \ case $$flg in \ *=*|--*) continue;; \ -*I) strip_trailopt 'I'; skip_next=yes;; \ -*I?*) strip_trailopt 'I';; \ -*O) strip_trailopt 'O'; skip_next=yes;; \ -*O?*) strip_trailopt 'O';; \ -*l) strip_trailopt 'l'; skip_next=yes;; \ -*l?*) strip_trailopt 'l';; \ -[dEDm]) skip_next=yes;; \ -[JT]) skip_next=yes;; \ esac; \ case $$flg in \ *$$target_option*) has_opt=yes; break;; \ esac; \ done; \ test $$has_opt = yes am__make_dryrun = (target_option=n; $(am__make_running_with_option)) am__make_keepgoing = (target_option=k; $(am__make_running_with_option)) pkgdatadir = $(datadir)/@PACKAGE@ pkgincludedir = $(includedir)/@PACKAGE@ pkglibdir = $(libdir)/@PACKAGE@ pkglibexecdir = $(libexecdir)/@PACKAGE@ am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd install_sh_DATA = $(install_sh) -c -m 644 install_sh_PROGRAM = $(install_sh) -c install_sh_SCRIPT = $(install_sh) -c INSTALL_HEADER = $(INSTALL_DATA) transform = $(program_transform_name) NORMAL_INSTALL = : PRE_INSTALL = : POST_INSTALL = : NORMAL_UNINSTALL = : PRE_UNINSTALL = : POST_UNINSTALL = : bin_PROGRAMS = weborf$(EXEEXT) subdir = . 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See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # This file is maintained in Automake, please report # bugs to or send patches to # . nl=' ' # We need space, tab and new line, in precisely that order. Quoting is # there to prevent tools from complaining about whitespace usage. IFS=" "" $nl" file_conv= # func_file_conv build_file lazy # Convert a $build file to $host form and store it in $file # Currently only supports Windows hosts. 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See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program. If not, see . # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # Originally written by Alexandre Oliva . case $1 in '') echo "$0: No command. Try '$0 --help' for more information." 1>&2 exit 1; ;; -h | --h*) cat <<\EOF Usage: depcomp [--help] [--version] PROGRAM [ARGS] Run PROGRAMS ARGS to compile a file, generating dependencies as side-effects. Environment variables: depmode Dependency tracking mode. source Source file read by 'PROGRAMS ARGS'. object Object file output by 'PROGRAMS ARGS'. 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Note that we *cannot* use a case # here, because this file can only contain one case statement. if test "$depmode" = hp; then # HP compiler uses -M and no extra arg. gccflag=-M depmode=gcc fi if test "$depmode" = dashXmstdout; then # This is just like dashmstdout with a different argument. dashmflag=-xM depmode=dashmstdout fi cygpath_u="cygpath -u -f -" if test "$depmode" = msvcmsys; then # This is just like msvisualcpp but w/o cygpath translation. # Just convert the backslash-escaped backslashes to single forward # slashes to satisfy depend.m4 cygpath_u='sed s,\\\\,/,g' depmode=msvisualcpp fi if test "$depmode" = msvc7msys; then # This is just like msvc7 but w/o cygpath translation. # Just convert the backslash-escaped backslashes to single forward # slashes to satisfy depend.m4 cygpath_u='sed s,\\\\,/,g' depmode=msvc7 fi if test "$depmode" = xlc; then # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information. gccflag=-qmakedep=gcc,-MF depmode=gcc fi case "$depmode" in gcc3) ## gcc 3 implements dependency tracking that does exactly what ## we want. 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(umask $mkdir_umask && eval "\$doit_exec \$mkdirprog $prefixes") || test -d "$dstdir" || exit 1 obsolete_mkdir_used=true fi fi fi if test -n "$dir_arg"; then { test -z "$chowncmd" || $doit $chowncmd "$dst"; } && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } && { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false || test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1 else # Make a couple of temp file names in the proper directory. dsttmp=$dstdir/_inst.$$_ rmtmp=$dstdir/_rm.$$_ # Trap to clean up those temp files at exit. trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0 # Copy the file name to the temp name. (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") && # and set any options; do chmod last to preserve setuid bits. # # If any of these fail, we abort the whole thing. If we want to # ignore errors from any of these, just make sure not to ignore # errors from the above "$doit $cpprog $src $dsttmp" command. # { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } && { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } && # If -C, don't bother to copy if it wouldn't change the file. if $copy_on_change && old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` && new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` && set -f && set X $old && old=:$2:$4:$5:$6 && set X $new && new=:$2:$4:$5:$6 && set +f && test "$old" = "$new" && $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1 then rm -f "$dsttmp" else # Rename the file to the real destination. $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null || # The rename failed, perhaps because mv can't rename something else # to itself, or perhaps because mv is so ancient that it does not # support -f. { # Now remove or move aside any old file at destination location. # We try this two ways since rm can't unlink itself on some # systems and the destination file might be busy for other # reasons. In this case, the final cleanup might fail but the new # file should still install successfully. { test ! -f "$dst" || $doit $rmcmd -f "$dst" 2>/dev/null || { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null && { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; } } || { echo "$0: cannot unlink or rename $dst" >&2 (exit 1); exit 1 } } && # Now rename the file to the real destination. $doit $mvcmd "$dsttmp" "$dst" } fi || exit 1 trap '' 0 fi done # Local variables: # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-time-zone: "UTC" # time-stamp-end: "; # UTC" # End: weborf-0.13.3/mynet.h0000644000175100017510000000162412671354240011321 00000000000000/* Weborf Copyright (C) 2010 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #ifndef WEBORF_MYNET_H #define WEBORF_MYNET_H #include "types.h" #include "options.h" int net_create_server_socket(); void net_bind_and_listen(int s); void net_getpeername(int,char*); #endif weborf-0.13.3/buffered_reader.h0000644000175100017510000000254112671354237013276 00000000000000/* Weborf Copyright (C) 2009 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #ifndef BUFFERED_READER_H #define BUFFERED_READER_H #include typedef struct { char *buffer; //Buffer where the reader stores the read data char *start; //Pointer to non-consumed data char *end; //Pointer to 1st byte after end of the data. A read must continue after end. int size; //Size of the buffer } buffered_read_t; void buffer_reset (buffered_read_t * buf); int buffer_init(buffered_read_t * buf, ssize_t size); void buffer_free(buffered_read_t * buf); ssize_t buffer_read(int fd, void *b, ssize_t count, buffered_read_t * buf); size_t buffer_strstr(int fd, buffered_read_t * buf, char * needle); #endif weborf-0.13.3/instance.c0000644000175100017510000012257412671354240011774 00000000000000/* Weborf Copyright (C) 2007 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli @author Salvo Rinaldi */ #include "options.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "utils.h" #include "myio.h" #include "cgi.h" #include "queue.h" #include "mystring.h" #include "mime.h" #include "instance.h" #include "cachedir.h" #include "types.h" #include "auth.h" #include "mynet.h" extern syn_queue_t queue; //Queue for open sockets extern t_thread_info thread_info; extern weborf_configuration_t weborf_conf; extern char* indexes[MAXINDEXCOUNT]; //Array containing index files extern int indexes_l; //Length of array extern pthread_key_t thread_key; //key for pthread_setspecific int request_auth(connection_t *connection_prop); void piperr(); int write_dir(char *real_basedir, connection_t * connection_prop); static int tar_send_dir(connection_t* connection_prop); static int send_page(buffered_read_t* read_b, connection_t* connection_prop); static int send_error_header(int retval, connection_t *connection_prop); static int get_or_post(connection_t *connection_prop, string_t post_param); /** Checks if the required resource has the same date as the one cached in the client. If they are the same, returns 0, returns 1 otherwise If the ETag matches this function will send to the client a 304 response too, so if this function returns 0, the HTTP request has been already served. The char* buffer must be at least RBUFFER bytes (see definitions in options.h) */ static inline int check_etag(connection_t* connection_prop,char *a) { //Find if it is a range request, 13 is strlen of "if-none-match" char *if_none_match="If-None-Match"; if (get_param_value(connection_prop->http_param,if_none_match,a,RBUFFER,strlen(if_none_match))) { time_t etag=(time_t)strtol(a+1,NULL,0); if (connection_prop->strfile_stat.st_mtime==etag) { //Browser has the item in its cache, sending 304 send_http_header(304,0,NULL,true,etag,connection_prop); return 0; } } return 1; } /** This function does some changes on the URL. The url will never be longer than the original one. */ static inline void modURL(char* url) { replaceEscape(url); //Prevents the use of .. to access the whole filesystem strReplace(url,"../",'\0'); //TODO AbsoluteURI: Check if the url uses absolute url, and in that case remove the 1st part } /** Sets keep_alive and protocol_version fields of connection_t */ static inline void set_connection_props(connection_t *connection_prop) { char a[12];//Gets the value //Obtains the connection header, writing it into the a buffer, and sets connection=true if the header is present bool connection=get_param_value(connection_prop->http_param,"Connection", a,sizeof(a),strlen("Connection")); //Setting the connection type, using protocol version if (connection_prop->http_param[7]=='1' && connection_prop->http_param[5]=='1') {//Keep alive by default (protocol 1.1) connection_prop->protocol_version=HTTP_1_1; connection_prop->keep_alive=(connection && strncmp(a,"close",5)==0)?false:true; } else {//Not http1.1 //Constants are set to make this line work connection_prop->protocol_version=connection_prop->http_param[7]; connection_prop->keep_alive=(connection && strncmp(a,"Keep",4)==0)?true:false; } modURL(connection_prop->page);//Operations on the url string split_get_params(connection_prop);//Splits URI into page and parameters connection_prop->basedir=get_basedir(connection_prop->http_param); } static inline void handle_requests(char* buf,buffered_read_t * read_b,int * bufFull,connection_t* connection_prop,long int id) { int from; int sock=connection_prop->sock; char *lasts;//Used by strtok_r short int r;//Readed char char *end;//Pointer to header's end while (true) { //Infinite cycle to handle all pipelined requests if ((*bufFull)!=0) { memset(buf,0,(*bufFull));//Sets to 0 the buffer, only the part used for the previous request in the same connection (*bufFull)=0;//bufFull-(end-buf+4); } from=0; while ((end=strstr(buf+from,"\r\n\r"))==NULL) { //Determines if there is a \r\n\r which is an ending sequence //ssize_t rsize=buffer_strstr(sock,read_b,"\r\n\r\n"); //r=buffer_read(sock, buf+(*bufFull),rsize+strlen("\r\n\r\n"),read_b);//Reads 2 char and adds to the buffer r=buffer_read(sock, buf+(*bufFull),2,read_b);//Reads 2 char and adds to the buffer if (r<=0) { //Connection closed or error return; } if (!(buf[*bufFull]==10 || buf[*bufFull]==13)) {//Optimization to make strstr parse only the ending part of the string from=(*bufFull); } //TODO remove this crap!! //if ((*bufFull)!=0) { //Removes Cr Lf from beginning (*bufFull)+=r;//Sets the end of the user buffer (may contain more than one header) //} else if (buf[*bufFull]!='\n' && buf[*bufFull]!='\r') { // (*bufFull)+=r; //} //Buffer full and still no valid http header if ((*bufFull)>=INBUFFER) goto bad_request; } if (strstr(buf+from,"\r\n\r\n")==NULL) {//If we didn't read yet the lst \n of the ending sequence, we read it now, so it won't disturb the next request *bufFull+=buffer_read(sock, buf+*bufFull,1,read_b);//Reads 1 char and adds to the buffer } end[2]='\0';//Terminates the header, leaving a final \r\n in it //Finds out request's kind if (strncmp(buf,"GET",strlen("GET"))==0) connection_prop->method_id=GET; else if (strncmp(buf,"POST",strlen("POST"))==0) connection_prop->method_id=POST; else if (strncmp(buf,"PUT",strlen("PUT"))==0) connection_prop->method_id=PUT; else if (strncmp(buf,"DELETE",strlen("DELETE"))==0) connection_prop->method_id=DELETE; else if (strncmp(buf,"OPTIONS",strlen("OPTIONS"))==0) connection_prop->method_id=OPTIONS; #ifdef WEBDAV else if (strncmp(buf,"PROPFIND",strlen("PROPFIND"))==0) connection_prop->method_id=PROPFIND; else if (strncmp(buf,"MKCOL",strlen("MKCOL"))==0) connection_prop->method_id=MKCOL; else if (strncmp(buf,"COPY",strlen("COPY"))==0) connection_prop->method_id=COPY; else if (strncmp(buf,"MOVE",strlen("MOVE"))==0) connection_prop->method_id=MOVE; #endif else goto bad_request; connection_prop->method=strtok_r(buf," ",&lasts);//Must be done to eliminate the request connection_prop->page=strtok_r(NULL," ",&lasts); if (connection_prop->page==NULL || connection_prop->method == NULL) goto bad_request; connection_prop->http_param=lasts; #ifdef THREADDBG syslog(LOG_INFO,"Requested page: %s to Thread %ld",connection_prop->page,id); #endif //Stores the parameters of the request set_connection_props(connection_prop); if (send_page(read_b, connection_prop)<0) { #ifdef REQUESTDBG syslog(LOG_INFO,"%s - FAILED - %s %s",connection_prop->ip_addr,connection_prop->method,connection_prop->page); #endif close(sock); return;//Unable to send an error } #ifdef REQUESTDBG syslog(LOG_INFO,"%s - %d - %s %s",connection_prop->ip_addr,connection_prop->status_code,connection_prop->method,connection_prop->page); #endif //Non pipelined if (connection_prop->keep_alive==false) return; } /* while */ bad_request: send_err(connection_prop,400,"Bad request"); close(sock); return; } /** Set thread with id as free */ void change_free_thread(long int id,int free_d, int count_d) { pthread_mutex_lock(&thread_info.mutex); thread_info.free+=free_d; thread_info.count+=count_d; #ifdef THREADDBG syslog(LOG_DEBUG,"There are %d free threads",thread_info.free); #endif pthread_mutex_unlock(&thread_info.mutex); } /** Function executed at the beginning of the thread Takes open sockets from the queue and serves the requests Doesn't do busy waiting */ void * instance(void * nulla) { thread_prop_t thread_prop; //Server's props pthread_setspecific(thread_key, (void *)&thread_prop); //Set thread_prop as thread variable //General init of the thread thread_prop.id=(long int)nulla;//Set thread's id #ifdef THREADDBG syslog(LOG_DEBUG,"Starting thread %ld",thread_prop.id); #endif //Vars int bufFull=0; //Amount of buf used connection_t connection_prop; //Struct to contain properties of the connection buffered_read_t read_b; //Buffer for buffered reader int sock=0; //Socket with the client char * buf=calloc(INBUFFER+1,sizeof(char)); //Buffer to contain the HTTP request connection_prop.strfile=malloc(URI_LEN); //buffer for filename signal(SIGPIPE, SIG_IGN);//Ignores SIGPIPE #ifdef IPV6 struct sockaddr_in6 addr;//Local and remote address socklen_t addr_l=sizeof(struct sockaddr_in6); #else struct sockaddr_in addr; int addr_l=sizeof(struct sockaddr_in); #endif if (mime_init(&thread_prop.mime_token)!=0 || buffer_init(&read_b,BUFFERED_READER_SIZE)!=0 || buf==NULL || connection_prop.strfile==NULL) { //Unable to allocate the buffer #ifdef SERVERDBG syslog(LOG_CRIT,"Not enough memory to allocate buffers for new thread"); #endif goto release_resources; } //Start accepting sockets change_free_thread(thread_prop.id,1,0); while (true) { q_get(&queue, &sock);//Gets a socket from the queue change_free_thread(thread_prop.id,-1,0);//Sets this thread as busy if (sock<0) { //Was not a socket but a termination order goto release_resources; } connection_prop.sock=sock;//Assigned socket into the struct net_getpeername(sock,connection_prop.ip_addr); #ifdef THREADDBG syslog(LOG_DEBUG,"Thread %ld: Reading from socket",thread_prop.id); #endif handle_requests(buf,&read_b,&bufFull,&connection_prop,thread_prop.id); #ifdef THREADDBG syslog(LOG_DEBUG,"Thread %ld: Closing socket with client",thread_prop.id); #endif close(sock);//Closing the socket buffer_reset (&read_b); change_free_thread(thread_prop.id,1,0);//Sets this thread as free } release_resources: #ifdef THREADDBG syslog(LOG_DEBUG,"Terminating thread %ld",thread_prop.id); #endif free(buf); free(connection_prop.strfile); buffer_free(&read_b); mime_release(thread_prop.mime_token); change_free_thread(thread_prop.id,0,-1);//Reduces count of threads pthread_exit(0); return NULL;//Never reached } /** This function handles a PUT request. It requires the socket, connection_t struct and buffered_read_t to read from the socket, since the reading is internally buffered. PUT size has no hardcoded limits. Auth provider has to check for the file's size and refuse it if it is the case. This function will not work if there is no auth provider. */ int read_file(connection_t* connection_prop,buffered_read_t* read_b) { int sock=connection_prop->sock; if (weborf_conf.authsock==NULL) { return ERR_FORBIDDEN; } //Checking if there is any unsupported Content-* header. In this case return 501 (Not implemented) { char*header=connection_prop->http_param; while ((header=strstr(header,"Content-"))!=NULL) { if (strncmp(header,"Content-Length",14)!=0) { return ERR_NOTIMPLEMENTED; } header++; } } char a[NBUFFER]; //Buffer for field's value int retval; long long int content_l; //Length of the put data //Gets the value of content-length header bool r=get_param_value(connection_prop->http_param,"Content-Length", a,NBUFFER,strlen("Content-Length"));//14 is content-lenght's len if (r!=false) {//If there is no content-lenght returns error content_l=strtoll( a , NULL, 0 ); } else {//No data return ERR_NODATA; } //Checks if file already exists or not (needed for response code) if (file_exists(connection_prop->strfile)) {//Resource already existed (No content) retval=OK_NOCONTENT; } else {//Resource was created (Created) retval=OK_CREATED; } int fd=open(connection_prop->strfile,O_WRONLY|O_CREAT,S_IRUSR|S_IWUSR); if (fd<0) { return ERR_FILENOTFOUND; } ftruncate(fd,content_l); char* buf=malloc(FILEBUF);//Buffer to read from file if (buf==NULL) { #ifdef SERVERDBG syslog(LOG_CRIT,"Not enough memory to allocate buffers"); #endif close(fd); return ERR_NOMEM; } long long int read_,write_; long long int tot_read=0; long long int to_read; while ((to_read=(content_l-tot_read)>FILEBUF?FILEBUF:content_l-tot_read)>0) { read_=buffer_read(sock,buf,to_read,read_b); write_=write(fd,buf,read_); if (write_!=read_) { retval= ERR_BRKPIPE; break; } tot_read+=read_; } free(buf); close(fd); return retval; } /** This function handles a DELETE request. It requires the socket, connection_t struct Auth provider has to check if it is allowed to delete the file or not. This function will not work if there is no auth provider. */ int delete_file(connection_t* connection_prop) { int retval; if (weborf_conf.authsock==NULL) { return ERR_FORBIDDEN; } //connection_prop->strfile struct stat stat_d; if (stat(connection_prop->strfile,&stat_d)<0) { return ERR_FILENOTFOUND; } if (S_ISDIR(stat_d.st_mode)) { retval=dir_remove(connection_prop->strfile); } else { retval=unlink(connection_prop->strfile); } if (retval!=0) {//Returns a generic error return ERR_FORBIDDEN; } return OK_NOCONTENT; } /** Returns the list of supported methods. In theory this list should be different depending on the URI requested. But this method will return the same list for everything. */ static inline int options (connection_t* connection_prop) { #ifdef WEBDAV #define ALLOWED "Allow: GET,POST,PUT,DELETE,OPTIONS,PROPFIND,MKCOL,COPY,MOVE\r\nDAV: 1,2\r\nDAV: \r\nMS-Author-Via: DAV\r\n" #else #define ALLOWED "Allow: GET,POST,PUT,DELETE,OPTIONS\r\n" #endif send_http_header(200,0,ALLOWED,true,-1,connection_prop); return 0; } /** This function determines the requested page and sends it http_param is a string containing parameters of the HTTP request */ static int send_page(buffered_read_t* read_b, connection_t* connection_prop) { int retval=0;//Return value after sending the page string_t post_param; //Contains POST data #ifdef SENDINGDBG syslog (LOG_DEBUG,"URL changed into %s",connection_prop->page); #endif if (auth_check_request(connection_prop)!=0) { //If auth is required retval = ERR_NOAUTH; post_param.data=NULL; goto escape; } connection_prop->strfile_len = snprintf(connection_prop->strfile,URI_LEN,"%s%s",connection_prop->basedir,connection_prop->page);//Prepares the string if (connection_prop->method_id>=PUT) {//Methods from PUT to other uncommon ones :-D post_param.data=NULL; post_param.len=0; switch (connection_prop->method_id) { case PUT: retval=read_file(connection_prop,read_b); break; case DELETE: retval=delete_file(connection_prop); break; case OPTIONS: retval=options(connection_prop); break; #ifdef WEBDAV case PROPFIND: //Propfind has data, not strictly post but read_post_data will work post_param=read_post_data(connection_prop,read_b); retval=propfind(connection_prop,&post_param); break; case MKCOL: retval=mkcol(connection_prop); break; case COPY: case MOVE: retval=copy_move(connection_prop); break; #endif } goto escape; } if (connection_prop->method_id==POST) post_param=read_post_data(connection_prop,read_b); else post_param.data=NULL; if ((connection_prop->strfile_fd=open(connection_prop->strfile,O_RDONLY | O_LARGEFILE))<0) { //File doesn't exist. Must return errorcode retval=ERR_FILENOTFOUND; goto escape; } fstat(connection_prop->strfile_fd, &connection_prop->strfile_stat); retval = get_or_post(connection_prop,post_param); escape: free(post_param.data); //Closing local file previously opened if ((connection_prop->method_id==GET || connection_prop->method_id==POST) && connection_prop->strfile_fd>=0) { close(connection_prop->strfile_fd); } return send_error_header(retval,connection_prop); } /** * With get or post this function is called, it decides if execute CGI or send * the simple file, and if the request points to a directory it will redirect to * the appropriate index file or show the list of the files. * */ static int get_or_post(connection_t *connection_prop, string_t post_param) { if (S_ISDIR(connection_prop->strfile_stat.st_mode)) {//Requested a directory if (weborf_conf.tar_directory) { return tar_send_dir(connection_prop); } //Requested a directory without ending / if (!endsWith(connection_prop->strfile,"/",connection_prop->strfile_len,1)) {//Putting the ending / and redirect char head[URI_LEN+12];//12 is the size for the location header snprintf(head,URI_LEN+12,"Location: %s/\r\n",connection_prop->page); send_http_header(301,0,head,true,-1,connection_prop); return 0; } else {//Requested directory with "/" Search for index files or list directory char* index_name=&connection_prop->strfile[connection_prop->strfile_len];//Pointer to where to write the filename int i; //Cyclyng through the indexes for (i=0; istrfile)) { //If index exists, redirect to it char head[URI_LEN+12];//12 is the size for the location header snprintf(head,URI_LEN+12,"Location: %s%s\r\n",connection_prop->page,weborf_conf.indexes[i]); send_http_header(303,0,head,true,-1,connection_prop); return 0; } } connection_prop->strfile[connection_prop->strfile_len]=0; //Removing the index part return write_dir(connection_prop->basedir,connection_prop); } } else {//Requested an existing file if (weborf_conf.exec_script) { //Scripts enabled int q_; int f_len; for (q_=0; q_page+connection_prop->page_len-f_len,weborf_conf.cgi_paths.data[q_],f_len,f_len)) { return exec_page(weborf_conf.cgi_paths.data[++q_],&post_param,connection_prop->basedir,connection_prop); } } } //send normal file, control reaches this point if scripts are disabled or if the filename doesn't trigger CGI return write_file(connection_prop); } //return 0; //make gcc happy } /** * If retval is not 0, this function will send an appropriate error * or request authentication or any other header that does not imply * sending some content as well. * */ static int send_error_header(int retval, connection_t *connection_prop) { switch (retval) { case 0: return 0; case ERR_BRKPIPE: return send_err(connection_prop,500,"Internal server error"); case ERR_FILENOTFOUND: return send_err(connection_prop,404,"Page not found"); case ERR_NOMEM: return send_err(connection_prop,503,"Service Unavailable"); case ERR_NODATA: case ERR_NOTHTTP: return send_err(connection_prop,400,"Bad request"); case ERR_FORBIDDEN: return send_err(connection_prop,403,"Forbidden"); case ERR_NOTIMPLEMENTED: return send_err(connection_prop,501,"Not implemented"); case ERR_SERVICE_UNAVAILABLE: return send_err(connection_prop,503,"Service Unavailable"); case ERR_PRECONDITION_FAILED: return send_err(connection_prop,412,"Precondition Failed"); case ERR_CONFLICT: return send_err(connection_prop,409,"Conflict"); case ERR_INSUFFICIENT_STORAGE: return send_err(connection_prop,507,"Insufficient Storage"); case ERR_NOT_ALLOWED: return send_err(connection_prop,405,"Method Not Allowed"); case ERR_NOAUTH: return request_auth(connection_prop);//Sends a request for authentication case OK_NOCONTENT: return send_http_header(204,0,NULL,true,-1,connection_prop); case OK_CREATED: return send_http_header(201,0,NULL,true,-1,connection_prop); } return 0; //Make gcc happy } /** This function writes on the specified socket an html page containing the list of files within the specified directory. */ int write_dir(char* real_basedir,connection_t* connection_prop) { int sock=connection_prop->sock; /* WARNING This code checks the ETag and returns if the client has a copy in cache since the impact of using ETag for generated directory list is not known yet, if ETag goes away, also the following block will have to be deleted */ { char a[RBUFFER+MIMETYPELEN+16]; //Buffer for if-none-match from header //Check if the resource cached in the client is the same if (check_etag(connection_prop,&a[0])==0) return 0; } //Tries to send the item from the cache if (cache_send_item(0,connection_prop)) return 0; int pagelen; bool parent; /* Determines if has to show the link to parent dir or not. If page is the basedir, it won't show the link to .. */ { size_t basedir_len=strlen(real_basedir); if (connection_prop->strfile_len-1==basedir_len || connection_prop->strfile_len==basedir_len) parent=false; else parent=true; } char* html=malloc(MAXSCRIPTOUT);//Memory for the html page if (html==NULL) { //No memory #ifdef SERVERDBG syslog(LOG_CRIT,"Not enough memory to allocate buffers to list directory"); #endif return ERR_NOMEM; } if ((pagelen=list_dir (connection_prop,html,MAXSCRIPTOUT,parent))<0) { //Creates the page free(html);//Frees the memory used for the page return ERR_FILENOTFOUND; } else { //If there are no errors sends the page /*WARNING using the directory's mtime here allows better caching and the mtime will anyway be changed when files are added or deleted. Anyway i couldn't find the proof that it is changed also when files are modified. I tried on reiserfs and the directory's mtime changes too but i didn't find any doc about the other filesystems and OS. */ send_http_header(200,pagelen,NULL,true,connection_prop->strfile_stat.st_mtime,connection_prop); write(sock,html,pagelen); //Write item in cache cache_store_item(0,connection_prop,html,pagelen); } free(html);//Frees the memory used for the page return 0; } /** Writes a file to the socket, compressing it with gzip. Then, since it is not possible to know the size of the compressed file, it is not possible to send the size in advance, so it will set keep_alive to false (and will seand the header "Connection: close" before) after sending. sock is the socket */ #ifdef __COMPRESSION static inline int write_compressed_file(connection_t* connection_prop ) { int sock=connection_prop->sock; if ( connection_prop->strfile_stat.st_size>SIZE_COMPRESS_MIN && connection_prop->strfile_stat.st_sizehttp_param,"Accept-Encoding:"))!=NULL && (end=strstr(accept,"\r\n"))!=NULL) { //Avoid to parse the entire header. end[0]='\0'; char* gzip=strstr(accept,"gzip"); end[0]='\r'; if (gzip==NULL) { return NO_ACTION; } } } else { //File size is not in the size range to be compressed return NO_ACTION; } connection_prop->keep_alive=false; send_http_header(200, connection_prop->strfile_stat.st_size, "Content-Encoding: gzip\r\n", false, connection_prop->strfile_stat.st_mtime, connection_prop); int pid=fork(); if (pid==0) { //child, executing gzip fclose (stdout); //Closing the stdout dup(sock); //Redirects the stdout #ifdef GZIPNICE nice(GZIPNICE); //Reducing priority #endif execlp("gzip","gzip","-c",connection_prop->strfile,(char *)0); } else if (pid>0) { //Father, does nothing int status; waitpid(pid,&status,0); } else { //Error return ERR_NOMEM; //Well not enough memory in process table... } return 0; } #endif /** * Returns the amount of bytes to send * Collaterally, this function seeks the file to the requested position * finds out the mimetype * sends the header * * a must be a pointer to a buffer large at least RBUFFER+MIMETYPELEN+16 * */ static inline unsigned long long int bytes_to_send(connection_t* connection_prop,char *a) { int http_code=200; errno=0; unsigned long long int count; char *hbuf=a; int remain=RBUFFER+MIMETYPELEN+16, t; a[0]='\0'; #ifdef __RANGE char *range="Range"; char *if_range="If-Range"; bool range_header=get_param_value(connection_prop->http_param,range,a,RBUFFER,strlen(range)); time_t etag=connection_prop->strfile_stat.st_mtime; //Range header present, seeking for If-Range if (range_header) { char b[RBUFFER]; //Buffer for If-Range if (get_param_value(connection_prop->http_param,if_range,&b[0],sizeof(b),strlen(if_range))) { etag=(time_t)strtol(&b[1],NULL,0); } } /* * If range header is present and (If-Range has the same etag OR there is no If-Range) * */ if (range_header && connection_prop->strfile_stat.st_mtime==etag) {//Find if it is a range request 5 is strlen of "range" unsigned long long int from,to; { //Locating from and to //Range: bytes=12323-123401 char *eq, *sep; if ((eq=strstr(a,"="))==NULL ||(sep=strstr(eq,"-"))==NULL) {//Invalid data in Range header. errno =ERR_NOTHTTP; return ERR_NOTHTTP; } sep[0]=0; from=strtoll(eq+1,NULL,0); to=strtoll(sep+1,NULL,0); } if (to==0) { //If no to is specified, it is to the end of the file to=connection_prop->strfile_stat.st_size-1; } http_code=206; t=snprintf(hbuf,remain,"Accept-Ranges: bytes\r\nContent-Range: bytes %llu-%llu/%lld\r\n",(unsigned long long int)from,(unsigned long long int)to,(long long int)connection_prop->strfile_stat.st_size); hbuf+=t; remain-=t; lseek(connection_prop->strfile_fd,from,SEEK_SET); count=to-from+1; } else //Normal request #endif { a[0]=0; //Reset buffer in case it isn't used for headers count=connection_prop->strfile_stat.st_size; } //Sending MIME to the client #ifdef SEND_MIMETYPES if (weborf_conf.send_content_type) { thread_prop_t *thread_prop = pthread_getspecific(thread_key); const char* mime=mime_get_fd(thread_prop->mime_token,connection_prop->strfile_fd,&(connection_prop->strfile_stat)); //t= snprintf(hbuf,remain,"Content-Type: %s\r\n",mime); //hbuf+=t; //remain-=t; } #endif send_http_header(http_code,count,a,true,connection_prop->strfile_stat.st_mtime,connection_prop); return count; } /** This function reads a file and writes it to the socket. Also sends the http header with the content length header same as the file's size. There is no limit to file size, and it uses O_LARGEFILE flag to send file larger than 4gb. Since this flag isn't available on all systems, it will be 0 when compiled on system who doesn't have this flag. On those systems it is unpredictable if it will be able to send large files or not. If the file is larger, it will be sent using write_compressed_file, see that function for details. To work connection_prop.strfile_fd and connection_prop.strfile_stat must be set. The file sent is the one specified by strfile_fd, and it will not be closed after. */ int write_file(connection_t* connection_prop) { int sock=connection_prop->sock; char a[RBUFFER+MIMETYPELEN+16]; //Buffer for Range, Content-Range headers, and reading if-none-match from header //Check if the resource cached in the client is the same if (check_etag(connection_prop,&a[0])==0) return 0; #ifdef __COMPRESSION { //Tryies gzipping and sending the file int c= write_compressed_file(connection_prop); if (c!=NO_ACTION) return c; } #endif //Determines how many bytes send, depending on file size and ranges //Also sends the http header unsigned long long int count= bytes_to_send(connection_prop,&a[0]); /*if (errno !=0) { int e=errno; errno=0; return e; }*/ //Copy file using descriptors; from to and size return fd_copy(connection_prop->strfile_fd,sock,count); } /** Sends a request for authentication */ int request_auth(connection_t *connection_prop) { int sock=connection_prop->sock; char * descr = connection_prop->page; connection_prop->status_code=401; //Buffer for both header and page char * head=malloc(MAXSCRIPTOUT+HEADBUF); if (head==NULL) { #ifdef SERVERDBG syslog(LOG_CRIT,"Not enough memory to allocate buffers"); #endif return ERR_NOMEM; } char * page=head+HEADBUF; //Prepares html page int page_len=snprintf(page,MAXSCRIPTOUT,"%s

Authorization required

%s

%s",HTMLHEAD,descr,HTMLFOOT); //Prepares http header int head_len = snprintf(head,HEADBUF,"HTTP/1.1 401 Authorization Required\r\nServer: " SIGNATURE "\r\nContent-Length: %d\r\nWWW-Authenticate: Basic realm=\"%s\"\r\n\r\n",page_len,descr); //Sends the header if (write (sock,head,head_len)!=head_len) { free(head); return ERR_SOCKWRITE; } //Sends the page if (write(sock,page,page_len)!=page_len) { free(head); return ERR_SOCKWRITE; } free(head); return 0; } /** Sends an error to the client */ int send_err(connection_t *connection_prop,int err,char* descr) { int sock=connection_prop->sock; connection_prop->status_code=err; //Sets status code, for the logs //Buffer for both header and page char * head=malloc(MAXSCRIPTOUT+HEADBUF); if (head==NULL) { #ifdef SERVERDBG syslog(LOG_CRIT,"Not enough memory to allocate buffers"); #endif return ERR_NOMEM; } char * page=head+HEADBUF; //Prepares the page int page_len=snprintf(page,MAXSCRIPTOUT,"%s

Error %d

%s %s",HTMLHEAD,err,descr,HTMLFOOT); //Prepares the header int head_len = snprintf(head,HEADBUF,"HTTP/1.1 %d %s\r\nServer: " SIGNATURE "\r\nContent-Length: %d\r\nContent-Type: text/html\r\n\r\n",err,descr ,(int)page_len); //Sends the http header if (write (sock,head,head_len)!=head_len) { free(head); return ERR_SOCKWRITE; } //Sends the html page if (write(sock,page,page_len)!=page_len) { free(head); return ERR_SOCKWRITE; } free(head); return 0; } /** This function reads post data and returns the pointer to the buffer containing the data (if there is any) or NULL if there was no data. If it doesn't return a null value, the returned pointer must be freed. */ string_t read_post_data(connection_t* connection_prop,buffered_read_t* read_b) { int sock=connection_prop->sock; string_t res; res.len=0; res.data=NULL; //Buffer for field's value char a[NBUFFER]; //Gets the value char *content_length="Content-Length"; bool r=get_param_value(connection_prop->http_param,content_length, a,NBUFFER,strlen(content_length)); //If there is a value and method is POST if (r!=false) { //&& connection_prop->method_id==POST) { long int l=strtol( a , NULL, 0 ); if (l<=POST_MAX_SIZE && (res.data=malloc(l))!=NULL) {//Post size is ok and buffer is allocated res.len=buffer_read(sock,res.data,l,read_b); } } return res; } /** This function returns a pointer to a string. It will use virtualhost settings to return this string and if no virtualhost is set for that host, it will return the default basedir. Those string must */ char* get_basedir(char* http_param) { if (weborf_conf.virtual_host==false) return weborf_conf.basedir; char* result; char* h=strstr(http_param,"\r\nHost: "); if (h==NULL) return weborf_conf.basedir; h+=8;//Removing "Host:" string char* end=strstr(h,"\r"); if (end==NULL) return weborf_conf.basedir; end[0]=0; result=getenv(h); end[0]='\r'; if (result==NULL) return weborf_conf.basedir; //Reqeusted host doesn't exist return result; } /** This function returns the reason phrase according to the response code. */ static inline char *reason_phrase(int code) { code=code/100; switch (code) { case 2: return "OK"; case 3: return "Found"; case 4: return "Request error"; case 5: return "Server error"; case 1: return "Received"; }; return "Something is very wrong"; } /** This function sends a code header to the specified socket size is the Content-Length field. headers can be NULL or some extra headers to add. Headers must be separated by \r\n and must have an \r\n at the end. Content says if the size is for content-lenght or for entity-length Timestamp is the timestamp for the content. Set to -1 to use the current timestamp for Last-Modified and to omit ETag. This function will automatically take care of generating Connection header when needed, according to keep_alive and protocol_version of connection_prop */ int send_http_header(int code, unsigned long long int size,char* headers,bool content,time_t timestamp,connection_t* connection_prop) { int sock=connection_prop->sock; int len_head,wrote; char *head=malloc(HEADBUF); char* h_ptr=head; int left_head=HEADBUF; connection_prop->status_code=code; //Sets status code, for the logs if (head==NULL) { #ifdef SERVERDBG syslog(LOG_CRIT,"Not enough memory to allocate buffers"); #endif return ERR_NOMEM; } if (headers==NULL) headers=""; /*Defines the Connection header It will send the connection header if the setting is non-default Ie: will send keep alive if keep-alive is enabled and protocol is not 1.1 And will send close if keep-alive isn't enabled and protocol is 1.1 */ char *connection_header; if (connection_prop->protocol_version!=HTTP_1_1 && connection_prop->keep_alive==true) { connection_header="Connection: Keep-Alive\r\n"; } else if (connection_prop->protocol_version==HTTP_1_1 && connection_prop->keep_alive==false) { connection_header="Connection: close\r\n"; } else { connection_header=""; } len_head=snprintf(head,HEADBUF,"HTTP/1.1 %d %s\r\nServer: " SIGNATURE "\r\n%s",code,reason_phrase(code),connection_header); //This stuff moves the pointer to the buffer forward, and reduces the left space in the buffer itself //Next snprintf will append their strings to the buffer, without overwriting. head+=len_head; left_head-=len_head; //Creating ETag and date from timestamp if (timestamp!=-1) { //Sends ETag, if a timestamp is set len_head = snprintf(head,left_head,"ETag: \"%d\"\r\n",(int)timestamp); head+=len_head; left_head-=len_head; } #ifdef SEND_LAST_MODIFIED_HEADER else {//timestamp with now, to be eventually used by Last-Modified timestamp=time(NULL); } { //Sends Date struct tm ts; localtime_r((time_t)×tamp,&ts); len_head = strftime(head,left_head, "Last-Modified: %a, %d %b %Y %H:%M:%S GMT\r\n", &ts); head+=len_head; left_head-=len_head; } #endif if (size>0 || (connection_prop->keep_alive==true)) { //Content length (or entity lenght) and extra headers if (content) { len_head=snprintf(head,left_head,"Content-Length: %llu\r\n",(unsigned long long int)size); } else { len_head=snprintf(head,left_head,"entity-length: %llu\r\n",(unsigned long long int)size); } head+=len_head; left_head-=len_head; } len_head=snprintf(head,left_head,"%s\r\n",headers); //head+=len_head; Not necessary because the snprintf was the last one left_head-=len_head; wrote=write (sock,h_ptr,HEADBUF-left_head); free(h_ptr); if (wrote!=HEADBUF-left_head) return ERR_BRKPIPE; return 0; } /** This function writes on the specified socket a tar.gz file containing the required directory. No caching at all is used or is allowed to the clients */ static int tar_send_dir(connection_t* connection_prop) { connection_prop->keep_alive=false; char* headers=malloc(HEADBUF); if (headers==NULL) return ERR_NOMEM; //Last char is always '/', i null it so i can use default name connection_prop->strfile[--connection_prop->strfile_len]=0; snprintf(headers,HEADBUF , "Content-Type: application/x-gzip\r\n" "Content-Disposition: attachment; filename=\"%s.tar.gz\"\r\n", strrchr(connection_prop->strfile,'/')+1 ); send_http_header(200, 0, headers, true, -1, connection_prop); free(headers); int pid=fork(); if (pid==0) { //child, executing tar fclose (stdout); //Closing the stdout dup(connection_prop->sock); //Redirects the stdout nice(1); //Reducing priority execlp("tar","tar","-cz",connection_prop->strfile,(char *)0); } else if (pid>0) { //Father, does nothing int status; waitpid(pid,&status,0); } else { //Error return ERR_NOMEM; //Well not enough memory in process table... } return 0; } /** Function executed when weborf is called from inetd will use 0 as socket and exit after. It is almost a copy of instance() */ void inetd() { thread_prop_t thread_prop; //Server's props int bufFull=0; //Amount of buf used connection_t connection_prop; //Struct to contain properties of the connection buffered_read_t read_b; //Buffer for buffered reader int sock=connection_prop.sock=0; //Socket with the client,using normal file descriptor 0 char * buf=calloc(INBUFFER+1,sizeof(char)); //Buffer to contain the HTTP request connection_prop.strfile=malloc(URI_LEN); //buffer for filename thread_prop.id=0; signal(SIGPIPE, SIG_IGN);//Ignores SIGPIPE pthread_setspecific(thread_key, (void *)&thread_prop); //Set thread_prop as thread variable #ifdef THREADDBG syslog(LOG_DEBUG,"Starting from inetd"); #endif #ifdef IPV6 struct sockaddr_in6 addr;//Local and remote address socklen_t addr_l=sizeof(struct sockaddr_in6); #else struct sockaddr_in addr; int addr_l=sizeof(struct sockaddr_in); #endif if (mime_init(&thread_prop.mime_token)!=0 || buffer_init(&read_b,BUFFERED_READER_SIZE)!=0 || buf==NULL || connection_prop.strfile==NULL) { //Unable to allocate the buffer #ifdef SERVERDBG syslog(LOG_CRIT,"Not enough memory to allocate buffers for new thread"); #endif goto release_resources; } net_getpeername(sock,connection_prop.ip_addr); handle_requests(buf,&read_b,&bufFull,&connection_prop,thread_prop.id); //close(sock);//Closing the socket //buffer_reset (&read_b); release_resources: exit(0); /* No need to free memory and resources free(buf); free(connection_prop.strfile); buffer_free(&read_b); mime_release(thread_prop.mime_token); */ return; } weborf-0.13.3/base64.h0000644000175100017510000000146712671354237011264 00000000000000/* Weborf Copyright (C) 2007 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #ifndef WEBORF_BASE64_H #define WEBORF_BASE64_H void decode64(char *result, char *encoded); #endif weborf-0.13.3/utils.c0000644000175100017510000002511612671354240011322 00000000000000/* Weborf Copyright (C) 2007 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #include "options.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "mystring.h" #include "utils.h" #include "embedded_auth.h" /** This function reads the directory dir, putting inside the html string an html page with links to all the files within the directory. Buffer for html must be allocated by the calling function. bufsize is the size of the buffer allocated for html parent is true when the dir has a parent dir */ int list_dir(connection_t *connection_prop, char *html, unsigned int bufsize, bool parent) { int pagesize=0; //Written bytes on the page int maxsize = bufsize - 1; //String's max size int printf_s; char *color; //Depending on row count chooses a background color char *measure; //contains measure unit for file's size (B, KiB, MiB) int counter = 0; char path[INBUFFER]; //Buffer to contain element's absolute path struct dirent **namelist; counter = scandir(connection_prop->strfile, &namelist, 0, alphasort); if (counter <0) { //Open not succesfull return -1; } //Specific header table) pagesize=printf_s=snprintf(html+pagesize,maxsize,"%s",HTMLHEAD); maxsize-=printf_s; //Cycles trough dir's elements int i; struct tm ts; struct stat f_prop; //File's property char last_modified[URI_LEN]; //Print link to parent directory, if there is any if (parent) { printf_s=snprintf(html+pagesize,maxsize,""); maxsize-=printf_s; pagesize+=printf_s; } for (i=0; i\n", color, namelist[i]->d_name, namelist[i]->d_name, (long long int)size, measure,last_modified); maxsize-=printf_s; pagesize+=printf_s; } else if (S_ISDIR(f_mode)) { //Directory entry //Table row for the dir printf_s=snprintf(html+pagesize,maxsize, "\n", namelist[i]->d_name, namelist[i]->d_name,last_modified); maxsize-=printf_s; pagesize+=printf_s; } free(namelist[i]); } free(namelist); printf_s=snprintf(html+pagesize,maxsize,"
NameSizeLast Modified
d../--
f%s%lld%s%s
d%s/-%s
%s",HTMLFOOT); pagesize+=printf_s; return pagesize; } /** Prints version information */ void version() { printf("Weborf %s\n" "Copyright (C) 2007 Salvo 'LtWorf' Tomaselli.\n" "This is free software. You may redistribute copies of it under the terms of\n" "the GNU General Public License .\n" "There is NO WARRANTY, to the extent permitted by law.\n\n" "Written by Salvo 'LtWorf' Tomaselli and Salvo Rinaldi.\n" "Synchronized queue by Prof. Giuseppe Pappalardo.\n\n" "http://ltworf.github.io/weborf/\n", VERSION); exit(0); } void print_capabilities() { printf("version:" VERSION "\n"); printf("ipv:" #ifdef IPV6 "6" #else "4" #endif "\n" ); printf("webdav:" #ifdef WEBDAV "yes" #else "no" #endif "\n" ); printf("mime:" #ifdef SEND_MIMETYPES "yes" #else "no" #endif "\n" ); printf("embedded_auth:" #ifdef EMBEDDED_AUTH "yes" #else "no" #endif "\n" ); exit(0); } /** Prints command line help */ void help() { printf("\tUsage: weborf [OPTIONS]\n" "\tStart the weborf webserver\n\n" #ifdef IPV6 "\tCompiled for IPv6\n" #else "\tCompiled for IPv4\n" #endif #ifdef WEBDAV "\tHas webdav support\n" #endif #ifdef SEND_MIMETYPES "\tHas MIME support\n" #endif "Default port is %s\n" "Default base directory %s\n" "Signature used %s\n\n", PORT,BASEDIR,SIGNATURE); printf(" -a, --auth followed by absolute path of the program to handle authentication\n" " -b, --basedir followed by absolute path of basedir\n" " -C, --cache sets the directory to use for cache files\n" " -c, --cgi list of cgi files and binary to execute them comma-separated\n" " -d run as a daemon\n" " -h, --help display this help and exit\n" " -I, --index list of index files, comma-separated\n" " -i, --ip followed by IP address to listen (dotted format)\n" " -k, --caps lists the capabilities of the binary\n" " -m, --mime sends content type header to clients\n" " -p, --port followed by port number to listen\n" " -T --inetd must be specified when using weborf with inetd or xinetd\n" " -t --tar will send the directories as .tar.gz files\n" " -u, followed by a valid uid\n" " If started by root weborf will use this user to read files and execute scripts\n" " -V, --virtual list of virtualhosts in the form host=basedir, comma-separated\n" " -v, --version print program version\n" " -x, --noexec tells weborf to send each file instead of executing scripts\n\n" "Report bugs here https://bugs.launchpad.net/weborf\n" "or to " PACKAGE_BUGREPORT "\n"); exit(0); } /** Searching for easter eggs within the code isn't fair! */ void moo() { printf(" _____________________________________\n" "< Weborf ha i poteri della supermucca >\n" " -------------------------------------\n" " \\ ^__^\n" " \\ (oo)\\_______\n" " (__)\\ )\\/\\\n" " ||----w |\n" " || ||\n"); exit(0); } /** * This function prints the start disclaimer on stdout. * It wants the command line parameters * */ void print_start_disclaimer(int argc, char *argv[]) { printf("Weborf\n" "This program comes with ABSOLUTELY NO WARRANTY.\n" "This is free software, and you are welcome to redistribute it\n" "under certain conditions.\nFor details see the GPLv3 License.\n" "Run %s --help to see the options\n", argv[0]); } /** * Detaches the process from the shell, * it is re-implemented because it is not * included in POSIX * * It shouldn't be executed after launching * other threads. In that case the effects are * not specified. * */ void daemonize() { if (fork() == 0) signal(SIGHUP, SIG_IGN); else exit(0); } /** This function retrieves the value of an http field within the header http_param is the string containing the header parameter is the searched parameter buf is the buffer where copy the value size, maximum size of the buffer param_len =lenght of the parameter Returns false if the parameter isn't found, or true otherwise */ bool get_param_value(char *http_param, char *parameter, char *buf, ssize_t size,ssize_t param_len) { char *val = strstr(http_param, parameter); //Locates the requested parameter information if (val == NULL) { //No such field return false; } /* * It is very important for this line to be here, for security reasons. * It moves the pointer forward, assuming "Field: Value\r\n" * If the field is malformed like "Field0\r\n" the subsequent strstr * will fail and the function will return false. * Moving this line after the next strstr would introduce a security * vulnerability. * The strstr will not cause a segfault because at this point the header * string must at least terminate with "\r\n\r", the last '\r' is changed to 0 * so there is enough space to perform the operation * */ val += param_len + 2; //Moves the begin of the string to exclude the name of the field char *field_end = strstr(val, "\r\n"); //Searches the end of the parameter if (field_end==NULL) { return false; } if ((field_end - val + 1) < size) { //If the parameter's length is less than buffer's size memcpy(buf, val, field_end - val); } else { //Parameter string is too long for the buffer return false; } buf[field_end - val] = 0; //Ends the string within the destination buffer return true; } weborf-0.13.3/queue.h0000644000175100017510000000174112671354240011311 00000000000000/* Weborf Copyright (C) 2007 Giuseppe Pappalardo Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Giuseppe Pappalardo @author Salvo "LtWorf" Tomaselli */ #ifndef WEBORF_QUEUE_H #define WEBORF_QUEUE_H #include "types.h" int q_init(syn_queue_t * q, int size); int q_put(syn_queue_t * q, int val); int q_get(syn_queue_t * q, int *val); void q_free(syn_queue_t * q); #endif weborf-0.13.3/weborf.10000644000175100017510000001351412671354240011363 00000000000000.TH Weborf 1 "Sep 13, 2009" "Minimal webserver" .SH NAME weborf \- Minimal webserver .SH SYNOPSIS weborf [options] .SH DESCRIPTION Weborf is a minimal webserver. Also has a limited support for webdav. .BR This manual page documents \fBWeborf\fP's command-line parameters. .BR \fBWeborf\fP is released under the GNU General Public License version 3. .SH OPTIONS .SS .SS Options: .TP .B \-b, \-\-basedir Must be followed by a valid directory. Weborf will use this directory as root directory, and won't send files located in parent dirs. But it is still possible for server\-side scripts to read contents located anywhere on the filesystem. Links are also a workaround to exit from the base directory. .TP .B \-a, \-\-auth Must be followed by a unix socket listened by a program who will handle authentication. See the website for more details. .TP .B \-c, \-\-cgi Must be followed by a list (separated with commas and without spaces) of cgi formats and the binary to execute that format. For example: .php,/usr/bin/php-cgi,.sh,/usr/bin/sh-cgi In /etc/weborf.conf there is a 'cgi' directive, corresponding to this option. It is used when launching weborf as SystemV daemon. .TP .B \-C, \-\-cache Must be followed by a directory that will be used to store cached files. To flush the cache (empty that directory) you must send USR2 signal to the process. It is advised to flush the cache on reboot (manually or with kill) because some items might be invalid after a reboot but weborf would not know that. .TP .B \-T, \-\-inetd Must be specified when using weborf with inetd or xinetd. It will be still necessary to specify the used port, to pass the correct value to the CGI scripts. The \-u directive will be ignored. Daemon \-d mode should not be used. .TP .B \-t, \-\-tar If used, instead of sending directory listing when requesting a directory, weborf will send a tar.gz file with the content of that directory. It is used mainly to share files and preserving their permissions. .TP .B \-x, \-\-noexec When used, weborf will send scripts as if they were normal files instead of executing them and sending their output. .TP .B \-m, \-\-mime When used, weborf will send the Content-Type header. It is strongli advised to use it when using weborf as production server because some browsers rely on this field. This value will not affect the CGI pages. .TP .B \-i, \-\-ip Must be followed by a valid IP address (v6 or v4, depending on how weborf was compiled. Run weborf \-h to know it), and weborf will accept only connections directed to that specific IP. If the IP address provided isn't used by a network device on the host, weborf will terminate. By default weborf listens to all IP addresses on the local host. .TP .B \-k, \-\-caps Shows some compile-time options in a machine-readable format. .TP .B \-p, \-\-port Must be followed by a valid port number (between 1 and 65535), and weborf will listen to incoming connection on the specified port. If the port is already used weborf will terminate. To use low port numbers (less than 1024) it is necessary to execute the process as root. Thus it isn't a good idea to run a webserver with root privileges, so it is possible to specify another user. .TP .B \-V, \-\-virtual Enables weborf to use virtualhosts. The basedir supplied with \-b will be the default one (will be used if the requested host is unknown). Every virtualhost must be in the form host[:port]=basedir. The port must be specified if the port used is different than 80. And the basedir must end with a /. To separate many virtualhosts, use a comma, and avoid spaces. To make weborf use different virtualhosts on different ports, it will be necessary to launch many weborf's processes. .TP .B \-I, \-\-index Must be followed by a list (separated with commas and without spaces) of index files. Weborf will try to load an index file following the order they're listed, and if none is found it will list the content of the directory. In /etc/weborf.conf there is an 'indexes' directive, corresponding to this option. It is used when launching weborf as SystemV daemon. .TP .B \-u Must be followed by a valid uid, different from 0. Weborf will use this user to do his work, but will bind to the network port with the previous user. This mechanism is meant to let users execute it as root and use port 80, and then let it run without root privileges. .TP .B \-d Runs weborf as a daemon. It will not terminate when its father process terminates, and it will leave the shell free to receive commands. .SS .SH SCRIPTING Weborf is able to send dynamically generated pages using php-cgi (if installed). When a filename ends with ".php", weborf will use php to execute this file before sending it to the client. The \-c switch will override the default behavior. .BR It is also possible to create scritps or binaries in other languages, just read rfc3875 to know how to handle parameters. .SH RETURN VALUE .TP .B 0 Normal termination occurred after a signal, a daemonization or a print version and exit or so on... .TP .B 1 Basedir is not a directory .TP .B 2 Invalid IP address .TP .B 3 Port already in use .TP .B 4 Invalid port number .TP .B 5 Authentication socket doesn't exist or is not a unix socket .TP .B 6 Too much indexes provided as parameter to \-I or to \-c. Increasing MAXINDEXCOUNT in the file options.h and recompiling can solve the problem. But providing a reasanable amount of index file names would be a better solution. .TP .B 7 Unable to allocate memory .TP .B 9 Unable to change UID .TP .B 10 Error with cache directory .TP .B 19 Invalid parameters on command line .SS .SH "SIGNALS" .TP .B SIGUSR1 Prints the internal status of the socket's queue and threads on the standard output .SS .SH "SEE ALSO" .BR weborf.conf(5), php (1) .SH VERSION .BR Weborf 0.13 .SH WEB .BR http://ltworf.github.io/weborf/ .SH AUTHORS .nf Salvo "LtWorf" Tomaselli Salvo Rinaldi .br weborf-0.13.3/instance.h0000644000175100017510000000435712671354240011777 00000000000000/* Weborf Copyright (C) 2007 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli @author Salvo Rinaldi */ #ifndef WEBORF_INSTANCE_H #define WEBORF_INSTANCE_H #ifndef O_LARGEFILE //Needed to compile on Mac, where this doesn't exist #define O_LARGEFILE 0 #endif #include "types.h" #include "buffered_reader.h" #ifdef WEBDAV #include "webdav.h" #endif //Request #define INVALID -1 #define GET 0 #define POST 1 #define PUT 2 #define DELETE 3 #define OPTIONS 8 #ifdef WEBDAV #define PROPFIND 4 #define COPY 5 #define MOVE 6 #define MKCOL 7 #endif #define NO_ACTION -120 //Errors #define ERR_PRECONDITION_FAILED -14 #define ERR_NOT_ALLOWED -13 #define ERR_INSUFFICIENT_STORAGE -12 #define ERR_CONFLICT -11 #define ERR_SERVICE_UNAVAILABLE -10 #define ERR_FORBIDDEN -9 #define ERR_NOTIMPLEMENTED -8 #define ERR_NODATA -7 #define ERR_NOTHTTP -6 #define ERR_NOAUTH -5 #define ERR_SOCKWRITE -4 #define ERR_NOMEM -3 #define ERR_FILENOTFOUND -2 #define ERR_BRKPIPE -1 //Ok #define OK_CREATED 1 #define OK_NOCONTENT 2 //Protocol version #define HTTP_0_9 57 #define HTTP_1_0 48 #define HTTP_1_1 2 void inetd(); void *instance(void *); int write_file(connection_t * connection_prop); int send_err(connection_t *connection_prop,int err,char* descr); string_t read_post_data(connection_t * connection_prop, buffered_read_t * read_b); char *get_basedir(char *http_param); int send_http_header(int code, unsigned long long int size, char *headers, bool content, time_t timestamp, connection_t * connection_prop); int delete_file(connection_t* connection_prop); int read_file(connection_t* connection_prop,buffered_read_t* read_b); #endif weborf-0.13.3/queue.c0000644000175100017510000000575712671354240011317 00000000000000/* Weborf Copyright (C) 2007 Giuseppe Pappalardo Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Giuseppe Pappalardo @author Salvo "LtWorf" Tomaselli @author Salvo Rinaldi */ #include "options.h" #include #include #include #include "queue.h" /** Inits the syncronized queue, allocating memory. Requires the syn_queue_t struct and the size of the queue itself. To deallocate the queue, use the q_free function. */ int q_init(syn_queue_t * q, int size) { q->num = q->head = q->tail = 0; q->size = size; q->data = (int *) malloc(sizeof(int) * size); if (q->data == NULL) { //Error, unable to allocate memory return 1; } pthread_mutex_init(&q->mutex, NULL); pthread_cond_init(&q->for_space, NULL); pthread_cond_init(&q->for_data, NULL); q->n_wait_dt = q->n_wait_sp = 0; return 0; } /** Frees the memory taken by the queue. Requires the pointer to the queue struct */ void q_free(syn_queue_t * q) { free(q->data); } int q_get(syn_queue_t * q, int *val) { pthread_mutex_lock(&q->mutex); while (q->num == 0) { q->n_wait_dt++; pthread_cond_wait(&q->for_data, &q->mutex); } *val = q->data[q->head]; //Sets the value q->head = (q->head + 1) % q->size; //Moves the head q->num--; //Reduces count of the queue /*if ((q->num == q->size) && (q->n_wait_sp > 0)) { q->n_wait_sp--; pthread_cond_signal(&q->for_space); } // unlock also needed after signal*/ pthread_mutex_unlock(&q->mutex); // or threads blocked on wait return 0; // will not proceed } int q_put(syn_queue_t * q, int val) { pthread_mutex_lock(&q->mutex); //Wakes up a sleeping thread if (q->n_wait_dt > 0) { q->n_wait_dt--; pthread_cond_signal(&q->for_data); } // unlock also needed after signal //Fails if queue is full if (q->num == q->size) { pthread_mutex_unlock(&q->mutex); // or threads blocked on wait return 1; // will not proceed //while (q->num == q->size) { //q->n_wait_sp++; //pthread_cond_wait(&q->for_space, &q->mutex); } q->data[q->tail] = val; //Set the data in position q->tail = (q->tail + 1) % q->size; //Moves the tail q->num++; //Increases count of filled positions pthread_mutex_unlock(&q->mutex); // or threads blocked on wait return 0; // will not proceed } weborf-0.13.3/mime.c0000644000175100017510000000555412671354240011115 00000000000000/* Weborf Copyright (C) 2010 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #include "options.h" #include #include #include "mime.h" #ifdef SEND_MIMETYPES #include #endif /** Returns a token for the libmagic. buffer must NOT be shared amongst threads. The size of buffer is assumed to be at least MIMETYPELEN */ int mime_init(magic_t *token) { #ifdef SEND_MIMETYPES *token=magic_open(MAGIC_SYMLINK | MAGIC_MIME_TYPE); if (*token==NULL) return 1; return magic_load(*token,NULL); //Load the database #else *token=NULL; return 0; #endif } /** Releases the token for libmagic If the token is null, it will do nothing. */ void mime_release(magic_t token) { if (token==NULL) return; #ifdef SEND_MIMETYPES magic_close(token); #endif } /** returns mimetype of an opened file descriptor the cursor can be located at any position fd is the descriptor to an open file sb is the stat to the same file */ const char* mime_get_fd (magic_t token,int fd,struct stat *sb) { #ifdef SEND_MIMETYPES if (token==NULL) return NULL; /*If fd is a directory, send the mimetype without attempting to read it*/ if (sb->st_mode & S_IFREG) { /* * Seek file to 0 and read its header to know its mime type * then seek again to the previous position */ char buf[64]; //Get the current cursor position off_t prev_pos=lseek(fd,0,SEEK_CUR); //Set the cursor to the beginning of the file lseek(fd,0,SEEK_SET); //Reads 64 bytes to determine the type int r=read(fd,&buf,64); //Reset the position lseek(fd,prev_pos,SEEK_SET); const char* mime=magic_buffer(token,&buf,r); return mime; } else if (sb->st_mode & S_IFDIR) return "application/x-directory"; else if (sb->st_mode & S_IFSOCK) return "application/x-socket"; else if (sb->st_mode & S_IFLNK) return "application/x-symlink"; else if (sb->st_mode & S_IFBLK) return "application/x-block-device"; else if (sb->st_mode & S_IFCHR) return "application/x-character-device"; //else if (sb->st_mode & S_IFIFO) return "application/x-fifo"; #else return NULL; #endif } weborf-0.13.3/weborf.conf0000644000175100017510000000244212671354240012146 00000000000000# /etc/weborf.conf - configuration file for weborf(1) # see weborf.conf(5) for details on this file # #Index files. This list is ordered by priority. If not set, the default value will be index.html. indexes=index.html,index.php # Base directory. basedir=/var/www/ # Enables or disables use of CGI support use-cgi=true #Enable weborf to send Content-Type header use-mime=true # Tells weborf which binary it has to use to execute a certain dynamic page # default value: .php,/usr/lib/cgi-bin/php5,.py,/usr/lib/cgi-bin/weborf_py_wrapper #cgi=.php,/usr/lib/cgi-bin/php5,.py,/usr/lib/cgi-bin/weborf_py_wrapper,.cgi,/usr/lib/cgi-bin/weborf_cgi_wrapper # Authentication #auth-bin=/usr/local/bin/weborf.something #auth-socket=/var/run/weborf.auth # User that will be used to run the process. If it is not set, the user will be root! user=www-data # Directory that will be used for the cached files cachedir=/var/cache/weborf # Virtualhosts. Read manpage for more details. # Examples # This line will enable two hosts named "localhost" and "serverq.com" #virtual#80#localhost=/var/www/,serverq.com=/var/www-alt/ # This line will enable listing on port 8080. If the port is different than 80, # the port must be specified in the virtualhost too with :port #virtual#8080#localhost:8080=/home/ltworf/public_html/ weborf-0.13.3/base64.c0000644000175100017510000000417012671354237011251 00000000000000/* Weborf Copyright (C) 2007 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #include "options.h" #include #include #include "base64.h" /** Returns the base64 (6bit) code of a char */ static char getCode(char c) { if ('A' <=c && c<='Z') { return c-'A'; } else if ('a' <=c && c<='z') { return c-'a'+26; } else if ('0' <=c && c<='9') { return c-'0'+52; } else if (c=='+') return 62; else if(c=='/') return 63; return 0; } /** Decodes a group of 4 characters and put 3 resulting chars in res res buffer must be able to contain 3 bytes. */ void decode4_64(char *res, char *group) { ///////CALCULATE CHAR 0 res[0] = getCode(group[0]) << 2; char t = getCode(group[1]); char t1 = t; t >>= 4; res[0] = res[0] | t; //Completed 1st char ///////CALCULATE CHAR 1 res[1] = t1 << 4; t = getCode(group[2]); t1 = t; res[1] = res[1] | (t >> 2); //CALCULATE CHAR 2 res[2] = t1 << 6; t = getCode(group[3]); res[2] = res[2] | t; } /** Decodes a base64 string, putting the result inside the result buffer. Terminates with a \0 the buffer, so string functions can be used on the result. Doesn't change the encoded string. result's length must be at least: (strlen(encoded) /4 *3 )+1 */ void decode64(char *result, char *encoded) { char *res = result; while (encoded[0] != 0) { decode4_64(res, encoded); encoded += 4; res += 3; res[0] = 0; } } weborf-0.13.3/configure.ac0000644000175100017510000000176612671354237012317 00000000000000AC_INIT([weborf], [0.13.3], [tiposchi@tiscali.it]) AC_CONFIG_AUX_DIR([build-aux]) AC_CONFIG_SRCDIR([queue.c]) AC_CONFIG_HEADERS([config.h]) m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])]) AM_INIT_AUTOMAKE([foreign -Wall -Werror]) AM_MAINTAINER_MODE AC_PROG_CC AC_SUBST([cgibindir], [${libdir}/cgi-bin]) AC_SUBST([initdir], [${sysconfdir}/init.d]) AC_CHECK_HEADERS([arpa/inet.h fcntl.h netdb.h netinet/in.h stdlib.h string.h strings.h sys/file.h sys/socket.h syslog.h unistd.h]) AC_CHECK_FUNCS([alarm inet_ntoa localtime_r memmove memset mkdir putenv rmdir setenv socket strstr strtol strtoul ftruncate strrchr]) AC_SYS_LARGEFILE AC_HEADER_STDBOOL AC_TYPE_OFF_T AC_TYPE_SIZE_T AC_TYPE_SSIZE_T AC_TYPE_UID_T AC_FUNC_FORK AC_FUNC_MALLOC AC_C_INLINE AC_CHECK_LIB([pthread], [pthread_create], , \ AC_MSG_ERROR([libpthread is needed]) ) AC_CHECK_LIB([magic], [magic_load], , ) #AC_CONFIG_HEADERS([config.h options.h]) AC_CONFIG_FILES([Makefile cgi_wrapper/Makefile options.h ]) AC_OUTPUT weborf-0.13.3/config.h.in0000644000175100017510000001157112672253114012040 00000000000000/* config.h.in. Generated from configure.ac by autoheader. */ /* Define to 1 if you have the `alarm' function. */ #undef HAVE_ALARM /* Define to 1 if you have the header file. */ #undef HAVE_ARPA_INET_H /* Define to 1 if you have the header file. */ #undef HAVE_FCNTL_H /* Define to 1 if you have the `fork' function. */ #undef HAVE_FORK /* Define to 1 if you have the `ftruncate' function. */ #undef HAVE_FTRUNCATE /* Define to 1 if you have the `inet_ntoa' function. */ #undef HAVE_INET_NTOA /* Define to 1 if you have the header file. */ #undef HAVE_INTTYPES_H /* Define to 1 if you have the `magic' library (-lmagic). */ #undef HAVE_LIBMAGIC /* Define to 1 if you have the `pthread' library (-lpthread). */ #undef HAVE_LIBPTHREAD /* Define to 1 if you have the `localtime_r' function. */ #undef HAVE_LOCALTIME_R /* Define to 1 if your system has a GNU libc compatible `malloc' function, and to 0 otherwise. */ #undef HAVE_MALLOC /* Define to 1 if you have the `memmove' function. */ #undef HAVE_MEMMOVE /* Define to 1 if you have the header file. */ #undef HAVE_MEMORY_H /* Define to 1 if you have the `memset' function. */ #undef HAVE_MEMSET /* Define to 1 if you have the `mkdir' function. */ #undef HAVE_MKDIR /* Define to 1 if you have the header file. */ #undef HAVE_NETDB_H /* Define to 1 if you have the header file. */ #undef HAVE_NETINET_IN_H /* Define to 1 if you have the `putenv' function. */ #undef HAVE_PUTENV /* Define to 1 if you have the `rmdir' function. */ #undef HAVE_RMDIR /* Define to 1 if you have the `setenv' function. */ #undef HAVE_SETENV /* Define to 1 if you have the `socket' function. */ #undef HAVE_SOCKET /* Define to 1 if stdbool.h conforms to C99. */ #undef HAVE_STDBOOL_H /* Define to 1 if you have the header file. */ #undef HAVE_STDINT_H /* Define to 1 if you have the header file. */ #undef HAVE_STDLIB_H /* Define to 1 if you have the header file. */ #undef HAVE_STRINGS_H /* Define to 1 if you have the header file. */ #undef HAVE_STRING_H /* Define to 1 if you have the `strrchr' function. */ #undef HAVE_STRRCHR /* Define to 1 if you have the `strstr' function. */ #undef HAVE_STRSTR /* Define to 1 if you have the `strtol' function. */ #undef HAVE_STRTOL /* Define to 1 if you have the `strtoul' function. */ #undef HAVE_STRTOUL /* Define to 1 if you have the header file. */ #undef HAVE_SYSLOG_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_FILE_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_SOCKET_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_STAT_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_TYPES_H /* Define to 1 if you have the header file. */ #undef HAVE_UNISTD_H /* Define to 1 if you have the `vfork' function. */ #undef HAVE_VFORK /* Define to 1 if you have the header file. */ #undef HAVE_VFORK_H /* Define to 1 if `fork' works. */ #undef HAVE_WORKING_FORK /* Define to 1 if `vfork' works. */ #undef HAVE_WORKING_VFORK /* Define to 1 if the system has the type `_Bool'. */ #undef HAVE__BOOL /* Name of package */ #undef PACKAGE /* Define to the address where bug reports for this package should be sent. */ #undef PACKAGE_BUGREPORT /* Define to the full name of this package. */ #undef PACKAGE_NAME /* Define to the full name and version of this package. */ #undef PACKAGE_STRING /* Define to the one symbol short name of this package. */ #undef PACKAGE_TARNAME /* Define to the home page for this package. */ #undef PACKAGE_URL /* Define to the version of this package. */ #undef PACKAGE_VERSION /* Define to 1 if you have the ANSI C header files. */ #undef STDC_HEADERS /* Version number of package */ #undef VERSION /* Enable large inode numbers on Mac OS X 10.5. */ #ifndef _DARWIN_USE_64_BIT_INODE # define _DARWIN_USE_64_BIT_INODE 1 #endif /* Number of bits in a file offset, on hosts where this is settable. */ #undef _FILE_OFFSET_BITS /* Define for large files, on AIX-style hosts. */ #undef _LARGE_FILES /* Define to `int' if doesn't define. */ #undef gid_t /* Define to `__inline__' or `__inline' if that's what the C compiler calls it, or to nothing if 'inline' is not supported under any name. */ #ifndef __cplusplus #undef inline #endif /* Define to rpl_malloc if the replacement function should be used. */ #undef malloc /* Define to `long int' if does not define. */ #undef off_t /* Define to `int' if does not define. */ #undef pid_t /* Define to `unsigned int' if does not define. */ #undef size_t /* Define to `int' if does not define. */ #undef ssize_t /* Define to `int' if doesn't define. */ #undef uid_t /* Define as `fork' if `vfork' does not work. */ #undef vfork weborf-0.13.3/Makefile.am0000644000175100017510000000216212672241525012050 00000000000000SUBDIRS = cgi_wrapper bin_PROGRAMS = weborf weborf_SOURCES = \ auth.c \ base64.c \ buffered_reader.c \ cachedir.c \ cgi.c \ configuration.c \ instance.c \ listener.c \ mime.c \ myio.c \ mynet.c \ mystring.c \ queue.c \ utils.c \ webdav.c EXTRA_DIST = \ auth.h \ buffered_reader.h \ cgi.h \ configuration.h \ instance.h \ mime.h \ mynet.h \ types.h \ webdav.h \ base64.h \ cachedir.h \ embedded_auth.h \ listener.h \ myio.h \ mystring.h \ queue.h \ utils.h \ examples \ daemon \ weborf.conf \ qweborf/__init__.py \ qweborf/main.ui \ qweborf/nhelper.py \ qweborf/whelper.py \ qweborf/qweborf.py \ qweborf/qweborf \ qweborf/qweborf.1 \ qweborf/qweborf.desktop \ qweborf/qweborf_servicemenu.desktop \ qweborf.setup.py dist-hook: rm -rf `find $(distdir)/ -name .svn` dist_man_MANS = weborf.1 weborf.conf.5 init_SCRIPTS = daemon/weborf sysconf_DATA = weborf.conf dist_doc_DATA = \ CHANGELOG \ COPYING \ Credits \ README.md \ TODOlist weborf-0.13.3/qweborf/0000755000175100017510000000000012672253123011535 500000000000000weborf-0.13.3/qweborf/nhelper.py0000644000175100017510000002434712671354240013477 00000000000000# -*- coding: utf-8 -*- # Weborf # Copyright (C) 2011 Salvo "LtWorf" Tomaselli # # Weborf is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # # original code http://carnivore.it/2010/07/22/python_-_getifaddrs # edited Salvo "LtWorf" Tomaselli from ctypes import * from socket import AF_INET, AF_INET6, AF_PACKET, inet_ntop from sys import platform import subprocess import re def getifaddrs(): # getifaddr structs class ifa_ifu_u(Union): _fields_ = [ ("ifu_broadaddr", c_void_p), ("ifu_dstaddr", c_void_p) ] class ifaddrs(Structure): _fields_ = [ ("ifa_next", c_void_p), ("ifa_name", c_char_p), ("ifa_flags", c_uint), ("ifa_addr", c_void_p), ("ifa_netmask", c_void_p), ("ifa_ifu", ifa_ifu_u), ("ifa_data", c_void_p) ] # AF_UNKNOWN / generic if platform.startswith("darwin") or platform.startswith("freebsd"): class sockaddr (Structure): _fields_ = [ ("sa_len", c_uint8), ("sa_family", c_uint8), ("sa_data", (c_uint8 * 14))] else: class sockaddr(Structure): _fields_ = [ ("sa_family", c_uint16), ("sa_data", (c_uint8 * 14)) ] # AF_INET / IPv4 class in_addr(Union): _fields_ = [ ("s_addr", c_uint32), ] class sockaddr_in(Structure): _fields_ = [ ("sin_family", c_short), ("sin_port", c_ushort), ("sin_addr", in_addr), ("sin_zero", (c_char * 8)), # padding ] # AF_INET6 / IPv6 class in6_u(Union): _fields_ = [ ("u6_addr8", (c_uint8 * 16)), ("u6_addr16", (c_uint16 * 8)), ("u6_addr32", (c_uint32 * 4)) ] class in6_addr(Union): _fields_ = [ ("in6_u", in6_u), ] class sockaddr_in6(Structure): _fields_ = [ ("sin6_family", c_short), ("sin6_port", c_ushort), ("sin6_flowinfo", c_uint32), ("sin6_addr", in6_addr), ("sin6_scope_id", c_uint32), ] # AF_PACKET / Linux class sockaddr_ll(Structure): _fields_ = [ ("sll_family", c_uint16), ("sll_protocol", c_uint16), ("sll_ifindex", c_uint32), ("sll_hatype", c_uint16), ("sll_pktype", c_uint8), ("sll_halen", c_uint8), ("sll_addr", (c_uint8 * 8)) ] # AF_LINK / BSD|OSX class sockaddr_dl(Structure): _fields_ = [ ("sdl_len", c_uint8), ("sdl_family", c_uint8), ("sdl_index", c_uint16), ("sdl_type", c_uint8), ("sdl_nlen", c_uint8), ("sdl_alen", c_uint8), ("sdl_slen", c_uint8), ("sdl_data", (c_uint8 * 46)) ] libc = CDLL("libc.so.6") ptr = c_void_p(None) result = libc.getifaddrs(pointer(ptr)) if result: return None ifa = ifaddrs.from_address(ptr.value) result = {} while True: # name = ifa.ifa_name name = ifa.ifa_name.decode('ascii') # use this for python3 if name not in result: result[name] = {} if ifa.ifa_addr != None: sa = sockaddr.from_address(ifa.ifa_addr) if sa.sa_family not in result[name]: result[name][sa.sa_family] = [] data = {} if sa.sa_family == AF_INET: if ifa.ifa_addr is not None: si = sockaddr_in.from_address(ifa.ifa_addr) data['addr'] = inet_ntop(si.sin_family, si.sin_addr) if ifa.ifa_netmask is not None: si = sockaddr_in.from_address(ifa.ifa_netmask) data['netmask'] = inet_ntop(si.sin_family, si.sin_addr) if sa.sa_family == AF_INET6: if ifa.ifa_addr is not None: si = sockaddr_in6.from_address(ifa.ifa_addr) data['addr'] = inet_ntop(si.sin6_family, si.sin6_addr) if data['addr'].startswith('fe80:'): data['scope'] = si.sin6_scope_id if ifa.ifa_netmask is not None: si = sockaddr_in6.from_address(ifa.ifa_netmask) data['netmask'] = inet_ntop(si.sin6_family, si.sin6_addr) if sa.sa_family == AF_PACKET: if ifa.ifa_addr is not None: si = sockaddr_ll.from_address(ifa.ifa_addr) addr = "" for i in range(si.sll_halen): addr += "%02x:" % si.sll_addr[i] addr = addr[:-1] data['addr'] = addr if len(data) > 0: result[name][sa.sa_family].append(data) if ifa.ifa_next: ifa = ifaddrs.from_address(ifa.ifa_next) else: break libc.freeifaddrs(ptr) return result def getaddrs(ipv6=True): '''Returns the list of the IP addresses it is possible to bind to ipv6: if true, ONLY ipv6 addresses will be returned (ipv4 will be mapped to ipv6) ''' ifaces = getifaddrs() l_ipv4 = [] l_ipv6 = [] # Cycle the interfaces for iface in ifaces: # Cycle address family for family in ifaces[iface]: # Cycle addresses for addr in ifaces[iface][family]: if 'addr' in addr: if family == AF_INET: l_ipv4.append(str(addr['addr'])) elif family == AF_INET6: l_ipv6.append(str(addr['addr'])) if ipv6 == True: # Transforming ipv4 into ipv6-mapped for i in range(len(l_ipv4)): l_ipv4[i] = '::ffff:%s' % l_ipv4[i] return l_ipv4 + l_ipv6 else: return l_ipv4 def open_nat(port): '''Tries to open a port in the nat device directing it to the current host. RETURNS: a redirection object in case of success None in case of failure''' # Chooses the external port eport = port used_ports = {i.eport for i in get_redirections()} while True: if eport in used_ports: eport += 1 else: break # Chooses the local ip ip = [i for i in getaddrs(False) if re.match( r'^10\..*', i) != None or re.match(r'^192\.168\..*', i) != None][0] r = Redirection(port, eport, ip, "TCP", "weborf") if r.create_redirection(): return r else: return None def externaladdr(): '''Returns the public IP address. none in case of error''' with subprocess.Popen(['external-ip'], bufsize=1024, stdout=subprocess.PIPE) as p: out = p.stdout.readline().decode('ascii').strip() if re.match(r'[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}', out) == None: return None return out def get_redirections(): '''Returns a list of current NAT redirections''' with subprocess.Popen(['upnpc', '-l'], bufsize=2048, stdout=subprocess.PIPE) as p: out = p.stdout.read().decode('ascii').strip().split('\n') redirections = [] for i in out: m = re.match( r'[ ]*([0-9]+)[ ]+(UDP|TCP)[ ]+([0-9]+)->([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}):([0-9]+)[ ]+\'(.*)\' \'\'', i) if m != None: redirect = m.groups() r = Redirection(redirect[4], redirect[ 2], redirect[3], redirect[1], redirect[5]) redirections.append(r) return redirections def can_redirect(): '''Returns true if upnpc is installed and NAT traversal can be attempted''' try: with subprocess.Popen(['upnpc'], stdout=subprocess.DEVNULL, stderr=subprocess.STDOUT) as p: return True except: return False class Redirection(object): '''This class represents a NAT redirection''' def __init__(self, lport, eport, ip, proto, description): self.lport = int(lport) self.eport = int(eport) self.ip = ip self.proto = proto self.description = description def __str__(self): return '%s %d->%s:%d\t\'%s\'' % (self.proto, self.eport, self.ip, self.lport, self.description) def __repr__(self): return 'Redirection(%s,%s,%s,%s,%s)' % (repr(self.lport), repr(self.eport), repr(self.ip), repr(self.proto), repr(self.description)) def __eq__(self, other): if not isinstance(other, Redirection): return False return self.lport == other.lport and self.eport == other.eport and self.ip == other.ip and self.proto == other.proto def create_redirection(self): '''Activates the redirection. Returns true if the redirection becomes active''' print ("Creating redirection", ['upnpc', '-a', self.ip, str(self.lport), str(self.eport), self.proto]) p = subprocess.Popen( ['upnpc', '-a', self.ip, str(self.lport), str(self.eport), self.proto]) ret = p.wait() for i in get_redirections(): print ("Comparing %s %s" % (i, self)) if i == self: return True return False def remove_redirection(self): p = subprocess.Popen(['upnpc', '-d', str(self.eport), self.proto]) ret = p.wait() def printifconfig(): ifaces = getifaddrs() for iface in ifaces: print(iface) for family in ifaces[iface]: print("\t%s" % {AF_INET: 'IPv4', AF_INET6: 'IPv6', AF_PACKET: 'HW'}[family]) for addr in ifaces[iface][family]: for i in ['addr', 'netmask', 'scope']: if i in addr: print("\t\t%s %s" % (i, str(addr[i]))) print("") weborf-0.13.3/qweborf/qweborf_servicemenu.desktop0000644000175100017510000000043612671354240017126 00000000000000[Desktop Entry] Type=Service ServiceTypes=KonqPopupMenu/Plugin MimeType=inode/directory; Actions=share; X-KDE-Priority=TopLevel X-KDE-StartupNotify=false [Desktop Action share] Name=Share directory via HTTP… Name[it]=Condividi cartella con HTTP… Icon=network-wired Exec=qweborf %f weborf-0.13.3/qweborf/whelper.py0000644000175100017510000002475112671354240013507 00000000000000# Weborf # Copyright (C) 2010 Salvo "LtWorf" Tomaselli # # Weborf is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # # author Salvo "LtWorf" Tomaselli import os import subprocess import socket import threading from PyQt5 import QtCore import qweborf.nhelper as nhelper class weborf_runner(): def __init__(self, logfunction): self.logclass = logfunction self.logclass.logger("Software initialized") self.child = None self.socket = None self.listener = None self.waiter = None self.methods = [] self.username = None self.password = None self.ipv6 = True self._running = False self.version = None self.webdav = None self.weborf = self._test_weborf() def _test_weborf(self): '''Tests if weborf binary is existing. It will return true if everything is OK and false otherwise.''' try: with subprocess.Popen(["weborf", "-k"], bufsize=1024, stdout=subprocess.PIPE) as p: out = p.stdout.read().decode('ascii').strip() capabilities = {key: value for key, value in ( i.split(':', 1) for i in (l for l in out.split('\n')))} self.version = capabilities['version'] self.ipv6 = capabilities['ipv'] == '6' self.webdav = capabilities['webdav'] == 'yes' self.logclass.logger('Weborf version %s found' % self.version, self.logclass.DBG_NOTICE) self.logclass.logger('IPv%s protocol in use' % capabilities['ipv'], self.logclass.DBG_NOTICE) self.logclass.logger('Has webdav support: %s' % capabilities['webdav'], self.logclass.DBG_NOTICE) if capabilities['embedded_auth'] == 'yes': self.logclass.logger('Binary compiled with embedded authentication', self.logclass.DBG_ERROR) return False return True except FileNotFoundError: self.logclass.logger( 'Unable to find weborf', self.logclass.DBG_ERROR) except KeyError as e: self.logclass.logger( 'Capability %s not supported' % e, self.logclass.DBG_ERROR) except Exception as e: self.logclass.logger( 'Unknown exception %s' % e, self.logclass.DBG_ERROR) return False def start(self, options): '''Starts weborf, returns True if it is correctly started''' if not self.weborf: self.logclass.logger( 'Unable to start weborf', self.logclass.DBG_ERROR) return False if len(options['path']) == 0: self.logclass.logger('Path not specified', self.logclass.DBG_ERROR) return False self.logclass.logger("Starting weborf...") auth_socket = self.__create_auth_socket() self.__start_weborf(options, auth_socket) self.__listen_auth_socket(options) self.username = options['username'] self.password = options['password'] # Deciding which HTTP methods will be enabled self.methods = {'GET'} if options['dav']: self.methods = self.methods.union({'OPTIONS', 'PROPFIND'}) self.logclass.logger( "DAV access enabled", self.logclass.DBG_NOTICE) # If writing is enabled if options['write']: self.methods = self.methods.union( {'PUT', 'DELETE', 'COPY', 'MOVE', 'MKCOL'}) self.logclass.logger( 'Writing access enabled. This could pose security threat', self.logclass.DBG_WARNING) return True def __create_auth_socket(self): '''Creates a unix socket and returns the path to it''' self.socket = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) sockname = "/tmp/weborf_auth_socket%d-%d.socket" % ( os.getuid(), os.getpid()) try: os.remove(sockname) except OSError: pass self.socket.bind(sockname) return sockname def __listen_auth_socket(self, options): self.listener = __listener__(self.socket) self.listener.new_socket.connect(self.socket_cback) self.listener.start() @QtCore.pyqtSlot(object) def socket_cback(self, sock): '''Recieves connection requests and decides if they have to be authorized or denied''' data = sock.recv(4096).split(b'\r\n') if len(data) < 5: sock.send(b' ') sock.close() self.logclass.logger("DENIED: Invalid request") return uri = data[0] client = data[1] method = data[2] username = data[3] password = data[4] # Checking if the request must be allowed or denied allow = True if self.username is not None: # Must check username and password allow = bytes(self.username, 'utf-8') == username and bytes(self.password, 'utf-8') == password if method.decode('ascii') not in self.methods: allow = False if allow: self.logclass.logger("%s - %s %s" % (client, method, uri)) else: sock.send(b' ') self.logclass.logger("DENIED: %s - %s %s" % (client, method, uri)) sock.close() def __start_weborf(self, options, auth_socket): '''Starts a weborf in a subprocess''' cmdline = ["weborf", "-p", str(options['port']), "-b", str( options['path']), "-x", "-I", "....", "-a", auth_socket] if options['tar']: cmdline.append('--tar') if options['ip'] != None: cmdline.append('-i') cmdline.append(options['ip']) self.logclass.logger(' '.join(cmdline)) self.child = subprocess.Popen( cmdline, bufsize=1024, stdin=subprocess.PIPE, stdout=subprocess.PIPE) self.loglinks(options) self.waiter = __waiter__( self.child) # Starts thread to wait for weborf termination self.waiter.child_terminated.connect(self._child_terminated) self.waiter.start() self._running = True return True def loglinks(self, options): '''Prints to the log all the links that weborf is listening to''' if options['ip'] == None: addrs4 = nhelper.getaddrs(False) if self.ipv6: addrs6 = nhelper.getaddrs(True) else: addrs6 = tuple() else: if self.ipv6: # address can be both ipv6 or mapped ipv4 if '.' in options['ip']: addrs6 = (options['ip'],) addrs4 = (options['ip'][7:],) else: # Normal ipv6 addrs4 = tuple() addrs6 = (options['ip'],) else: addrs6 = tuple() addrs4 = (options['ip'],) # Output of addresses binded for i in addrs4: url = 'http://%s:%d/' % (i, options['port']) logentry = 'Address: %s' % (url, url) self.logclass.logger(logentry) for i in addrs6: url = 'http://[%s]:%d/' % (i, options['port']) logentry = 'Address: %s' % (url, url) self.logclass.logger(logentry) @QtCore.pyqtSlot(object, int) def _child_terminated(self, child, exit_code): '''Called when the child process is terminated param child is for now ignored''' if exit_code != 0: self.logclass.logger('Weborf terminated with exit code %d' % exit_code, self.logclass.DBG_ERROR) else: self.logclass.logger( "Termination complete", self.logclass.DBG_NOTICE) self._running = False pass def stop(self): '''Stop weborf and correlated processes. Will return True if it goes well It should be called only if start succeeded''' if self._running: self.logclass.logger( "Sending terminate signal and waiting for termination...") self.child.stdin.close() self.child.terminate() self.socket.close() # Closing socket, so the accept will fail and the # thread can terminate self.listener.stop() return True class __listener__(QtCore.QThread): '''This class is used to listen to a socket. It will accept connections and send those connection using new_socket(PyQt_PyObject). ''' new_socket = QtCore.pyqtSignal(object) def __init__(self, socket): QtCore.QThread.__init__(self) self.socket = socket self.socket.settimeout(2.0) self.cycle = True def stop(self): self.cycle = False def run(self): print("Ready to listen") self.socket.listen(1) while self.cycle: try: sock, addr = self.socket.accept() print(sock, addr) self.new_socket.emit(sock) except: pass class __waiter__(QtCore.QThread): '''This class creates a separate thread that will wait for the termination of weborf, and performs a callback when it occurs. A more normal way to do this would have been to handle SIGCHLD but the use of QT libraries prevents the use of signals apparently. connect to child_terminated(PyQt_PyObject,PyQt_PyObject) to handle the event''' child_terminated = QtCore.pyqtSignal(object, object) def __init__(self, child): '''child: child process to wait ''' QtCore.QThread.__init__(self) self.child = child def run(self): # wait termination for the child process t = self.child.wait() # Sends callback self.child_terminated.emit(self.child, t) weborf-0.13.3/qweborf/qweborf.py0000644000175100017510000001426612671354240013506 00000000000000#!/usr/bin/env python # -*- coding: utf-8 -*- # Weborf # Copyright (C) 2010 Salvo "LtWorf" Tomaselli # # Weborf is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # # author Salvo "LtWorf" Tomaselli from PyQt5 import QtGui, QtWidgets, QtCore import sys import os import qweborf.main as main import qweborf.whelper as whelper import qweborf.nhelper as nhelper class qweborfForm (QtWidgets.QWidget): DBG_DEFAULT = 0 DBG_WARNING = 1 DBG_ERROR = 2 DBG_NOTICE = 3 def setUi(self, ui): self.ui = ui self.weborf = whelper.weborf_runner(self) self.started = False if self.weborf.version >= '0.13': self.ui.chkTar.setEnabled(True) else: self.ui.chkTar.setEnabled(False) if not self.weborf.webdav: self.ui.chkDav.setEnabled(False) self.ui.chkWrite.setEnabled(False) # Listing addresses for i in nhelper.getaddrs(self.weborf.ipv6): self.ui.cmbAddress.addItem(i, None) self.ui.chkNAT.setEnabled(nhelper.can_redirect()) self.defaultdir = QtCore.QStandardPaths.writableLocation( QtCore.QStandardPaths.HomeLocation) initialdir = self.defaultdir if len(sys.argv) > 1 and os.path.exists(sys.argv[1]): initialdir = sys.argv[1] self.ui.txtPath.setText(initialdir) def logger(self, data, level=DBG_DEFAULT): '''logs an entry, showing it in the GUI''' if level == self.DBG_WARNING: data = 'WARNING: %s' % data elif level == self.DBG_ERROR: data = 'ERROR: %s' % data elif level == self.DBG_NOTICE: data = 'NOTICE: %s' % data self.ui.txtLog.moveCursor(QtGui.QTextCursor.End) self.ui.txtLog.insertHtml(data + '
') self.ui.txtLog.moveCursor(QtGui.QTextCursor.End) def setDefaultValues(self): '''Sets default values into the form GUI. It has to be called after the form has been initialized''' pass def stop_sharing(self): if self.weborf.stop(): self.ui.cmdStart.setEnabled(True) self.ui.cmdStop.setEnabled(False) self.ui.tabWidget.setEnabled(True) self.started = False def about(self): self.logger('
Qweborf 0.13.3') self.logger('This program comes with ABSOLUTELY NO WARRANTY.' ' This is free software, and you are welcome to redistribute it under certain conditions.' ' For details see the GPLv3 Licese.') self.logger( 'Homepage') self.logger( 'Salvo \'LtWorf\' Tomaselli <tiposchi@tiscali.it>') def terminate(self): if self.started: self.stop_sharing() sys.exit(0) def start_sharing(self): options = {} # Dictionary with the chosen options options['path'] = self.ui.txtPath.text() if self.ui.chkEnableAuth.isChecked(): options['username'] = self.ui.txtUsername.text() options['password'] = self.ui.txtPassword.text() else: options['username'] = None options['password'] = None options['port'] = self.ui.spinPort.value() options['dav'] = self.ui.chkDav.isChecked() if self.ui.chkDav.isChecked(): options['write'] = self.ui.chkWrite.isChecked() else: options['write'] = False options['tar'] = self.ui.chkTar.isChecked() if self.ui.cmbAddress.currentIndex() == 0: options['ip'] = None else: options['ip'] = str(self.ui.cmbAddress.currentText()) if self.weborf.start(options): self.ui.cmdStart.setEnabled(False) self.ui.cmdStop.setEnabled(True) self.ui.tabWidget.setEnabled(False) self.started = True if self.ui.chkNAT.isChecked() and self.started==True: QtCore.QCoreApplication.processEvents() self.logger('Trying to use UPnP to open a redirection in the NAT device. Please wait...') QtCore.QCoreApplication.processEvents() external_addr=nhelper.externaladdr() QtCore.QCoreApplication.processEvents() self.logger('Public IP address %s' % str(external_addr)) QtCore.QCoreApplication.processEvents() if external_addr!=None: redirection=nhelper.open_nat(options['port']) if redirection is not None: self.redirection=redirection url='http://%s:%d/' % (external_addr,redirection.eport) logentry='Public address: %s' % (url,url) self.logger(logentry) def select_path(self): current = self.ui.txtPath.text() if len(current) == 0: current = self.defaultdir dirname = QtWidgets.QFileDialog.getExistingDirectory( self, 'Directory to share', current, QtWidgets.QFileDialog.ShowDirsOnly ) if len(dirname) > 0: self.ui.txtPath.setText(dirname) def q_main(): import sys app = QtWidgets.QApplication(sys.argv) Form = qweborfForm() ui = main.Ui_Form() ui.setupUi(Form) Form.setUi(ui) Form.show() res = app.exec_() Form.terminate() sys.exit(res) if __name__ == "__main__": q_main() weborf-0.13.3/qweborf/main.ui0000644000175100017510000004156312671354240012752 00000000000000 Form 0 0 532 536 QWeborf 0 Basic QFormLayout::ExpandingFieldsGrow Directory to share txtPath Insert here the absolute path of the directory to share ⌫ 80 16777215 QDialogButtonBox::Open If checked, QWeborf will try to use UPnP to instruct the NAT device to open an external port to allow connections from Internet Try to share outside LAN Intermediate 0 Connection Port spinPort Select the port. It must be free and not blocked by a firewall. 65536 8080 Address cmbAddress Select the IP address to bind. Leave the default value if you don't know what this means. Bind to all Other Send directories as tar.gz Authentication QFormLayout::ExpandingFieldsGrow WebDav chkDav If checked, clients will be able to mount the shared directory as a DAV share. Enable WebDav Writing chkWrite Authentication false chkEnableAuth Enable Username txtUsername false Insert here the desired username Password txtPassword false Insert here the password QLineEdit::Password false If checked, clients will be able to create directories and write file on the server. Allow clients to write files on the server Advanced Advanced users are supposed to use the terminal 0 true true 0 ⌫ About Start sharing the directory Start sharing true false Stop sharing the directory Stop sharing Stop sharing and exit the program. QDialogButtonBox::Close txtPath cmdClearPath cmdOpen spinPort cmbAddress chkTar chkDav chkWrite chkEnableAuth txtUsername txtPassword tabWidget cmdClearLog cmdAbout cmdStart cmdStop cmdClose txtLog cmdStop clicked() Form stop_sharing() 526 495 457 544 cmdStart clicked() Form start_sharing() 125 495 122 545 cmdOpen clicked(QAbstractButton*) Form select_path() 517 40 528 68 cmdClose clicked(QAbstractButton*) Form terminate() 513 525 528 447 cmdAbout clicked() Form about() 494 426 265 275 cmdClearPath clicked() txtPath clear() 415 44 360 44 cmdClearLog clicked() txtLog clear() 470 359 398 359 chkDav clicked(bool) chkWrite setEnabled(bool) 238 181 152 193 chkEnableAuth clicked(bool) txtPassword setEnabled(bool) 169 220 196 276 chkEnableAuth clicked(bool) txtUsername setEnabled(bool) 139 214 128 239 auth_toggle(int) stop_sharing() start_sharing() select_path() dav_toggle(int) terminate() about() weborf-0.13.3/qweborf/qweborf0000644000175100017510000000152012671354240013044 00000000000000#!/usr/bin/env python3 # -*- coding: utf-8 -*- # Weborf # Copyright (C) 2010 Salvo "LtWorf" Tomaselli # # Relational is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # # author Salvo "LtWorf" Tomaselli import qweborf.qweborf qweborf.qweborf.q_main() weborf-0.13.3/qweborf/__init__.py0000644000175100017510000000000012671354240013555 00000000000000weborf-0.13.3/qweborf/qweborf.desktop0000755000175100017510000000043712671354240014525 00000000000000[Desktop Entry] Name=qweborf GenericName=qweborf Keywords=http;NAT;network;share Comment=Shares files using the HTTP protocol Comment[it]=Condivide file usando il protocollo HTTP Exec=qweborf %f Icon=network-wired Terminal=0 Type=Application Categories=Network; MimeType=inode/directory weborf-0.13.3/qweborf/qweborf.10000644000175100017510000000122412671354240013204 00000000000000.TH "qweborf" "1" .SH "NAME" qweborf \(em Shares files using the HTTP protocol. .SH "SYNOPSIS" .PP \fBqweborf\fR .SH "DESCRIPTION" .PP Qweborf provides an easy to use interface to share local files using the HTTP protocol. It can enable writing on the server, webdav and authentication. .SH "AUTHOR" .PP This manual page was written by Salvo 'LtWorf' Tomaselli for the \fBDebian GNU/Linux\fP system (but may be used by others). Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License version 3 or any later version published by the Free Software Foundation. weborf-0.13.3/auth.c0000644000175100017510000001063512671354237011131 00000000000000/* Weborf Copyright (C) 2010 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #include "options.h" #include #include #include #include #include #include #include #include #include "types.h" #include "auth.h" #include "instance.h" #include "base64.h" extern weborf_configuration_t weborf_conf; #include "embedded_auth.h" /** Checks that the authentication socket exists and is a unix socket */ void auth_set_socket(char *u_socket) { #ifdef EMBEDDED_AUTH weborf_conf.authsock = "embedded"; #else struct stat sb; if (stat(u_socket, &sb) == -1) { perror("Existing unix socket expected"); #ifdef SERVERDBG syslog(LOG_ERR, "%s doesn't exist", u_socket); #endif exit(5); } if ((sb.st_mode & S_IFMT) != S_IFSOCK) { #ifdef SERVERDBG syslog(LOG_ERR, "%s is not a socket", u_socket); #endif write(2,"Socket expected\n",16); exit(5); } weborf_conf.authsock = u_socket; #endif } /** This function checks if the authentication can be granted or not calling the external program. Returns 0 if authorization is granted. */ int auth_check_request(connection_t *connection_prop) { if (weborf_conf.authsock==NULL) return 0; char username[PWDLIMIT*2]; char* password=username; //will be changed if there is a password char* auth=strstr(connection_prop->http_param,"Authorization: Basic ");//Locates the auth information if (auth==NULL) { //No auth informations username[0]=0; //password[0]=0; } else { //Retrieves provided username and password char*auth_end=strstr(auth,"\r\n");//Finds the end of the header if (auth_end==NULL) return -1; char a[PWDLIMIT*2]; auth+=21;//Moves the begin of the string to exclude Authorization: Basic if ((auth_end-auth+1)<(PWDLIMIT*2)) memcpy(&a,auth,auth_end-auth); //Copies the base64 encoded string to a temp buffer else { //Auth string is too long for the buffer #ifdef SERVERDBG syslog(LOG_ERR,"Unable to accept authentication, buffer is too small"); #endif return ERR_NOMEM; } a[auth_end-auth]=0; decode64(username,a);//Decodes the base64 string password=strstr(username,":");//Locates the separator : if (password==NULL) return -1; password[0]=0;//Nulls the separator to split username and password password++;//make password point to the beginning of the password } int result=-1; #ifdef EMBEDDED_AUTH result=c_auth(connection_prop->page, connection_prop->ip_addr, connection_prop->method, username, password, connection_prop->http_param); #else { int s,len; struct sockaddr_un remote; s=socket(AF_UNIX,SOCK_STREAM,0); remote.sun_family = AF_UNIX; strcpy(remote.sun_path, weborf_conf.authsock); len = strlen(remote.sun_path) + sizeof(remote.sun_family); if (connect(s, (struct sockaddr *)&remote, len) == -1) {//Unable to connect return -1; } char* auth_str=malloc(HEADBUF+PWDLIMIT*2); if (auth_str==NULL) { #ifdef SERVERDBG syslog(LOG_CRIT,"Not enough memory to allocate buffers"); #endif return -1; } int auth_str_l=snprintf(auth_str,HEADBUF+PWDLIMIT*2,"%s\r\n%s\r\n%s\r\n%s\r\n%s\r\n%s\r\n",connection_prop->page,connection_prop->ip_addr,connection_prop->method,username,password,connection_prop->http_param); if (write(s,auth_str,auth_str_l)==auth_str_l && read(s,auth_str,1)==0) {//All data written and no output, ok result=0; } close(s); free(auth_str); } #endif return result; } weborf-0.13.3/configure0000755000175100017510000057067312672253113011740 00000000000000#! /bin/sh # Guess values for system-dependent variables and create Makefiles. # Generated by GNU Autoconf 2.69 for weborf 0.13.3. # # Report bugs to . # # # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc. # # # This configure script is free software; the Free Software Foundation # gives unlimited permission to copy, distribute and modify it. ## -------------------- ## ## M4sh Initialization. ## ## -------------------- ## # Be more Bourne compatible DUALCASE=1; export DUALCASE # for MKS sh if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : emulate sh NULLCMD=: # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which # is contrary to our usage. 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This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #include "options.h" #include #include #include #include #include #include #include #include #include #include "mystring.h" #include "cgi.h" #include "types.h" #include "instance.h" extern char ** environ; //To reset environ vars extern weborf_configuration_t weborf_conf; /** * This function will set enviromental variables mapping the HTTP request. * Each variable will be prefixed with "HTTP_" and will be converted to * upper case. */ static inline void cgi_set_http_env_vars(char *http_param) { //Sets Enviroment vars if (http_param == NULL) return; char *lasts; char *param; int i; int p_len; //Removes the 1st part with the protocol param = strtok_r(http_param, "\r\n", &lasts); setenv("SERVER_PROTOCOL", param, true); char hparam[200]; hparam[0] = 'H'; hparam[1] = 'T'; hparam[2] = 'T'; hparam[3] = 'P'; hparam[4] = '_'; //Cycles parameters while ((param = strtok_r(NULL, "\r\n", &lasts)) != NULL) { p_len = lasts-param-1; char *value = NULL; //Parses the parameter to split name from value for (i = 0; i < p_len; i++) { if (param[i] == ':' && param[i + 1] == ' ') { param[i] = '\0'; value = ¶m[i + 2]; strToUpper(param); //Converts to upper case strReplace(param, "-", '_'); memccpy(hparam+5,param,'\0',195); setenv(hparam, value, true); break; } } } } /** * Sets the SERVER_ADDR enviromental variable to be the string representation * of the SERVER IP ADDRESS which is being used by the socket * */ static inline void cgi_set_SERVER_ADDR_PORT(int sock) { #ifdef IPV6 char loc_addr[INET6_ADDRSTRLEN]; struct sockaddr_in6 addr; socklen_t addr_l=sizeof(struct sockaddr_in6); getsockname(sock, (struct sockaddr *)&addr, &addr_l); inet_ntop(AF_INET6, &addr.sin6_addr,(char*)&loc_addr, INET6_ADDRSTRLEN); #else char loc_addr[INET_ADDRSTRLEN]; struct sockaddr_in addr; int addr_l=sizeof(struct sockaddr_in); getsockname(sock, (struct sockaddr *)&addr,(socklen_t *) &addr_l); inet_ntop(AF_INET, &addr.sin_addr,(char*)&loc_addr, INET_ADDRSTRLEN); #endif setenv("SERVER_ADDR",(char*)&loc_addr,true); //TODO setenv("SERVER_PORT",weborf_conf.port,true); } /** * Sets env vars required by the CGI protocol * SERVER_SIGNATURE * SERVER_SOFTWARE * SERVER_NAME * GATEWAY_INTERFACE * REQUEST_METHOD * REDIRECT_STATUS (this is not specified in the CGI protocol but is needed to make php work) * SCRIPT_FILENAME * DOCUMENT_ROOT * REMOTE_ADDR * SCRIPT_NAME * REQUEST_URI (It is expected that the request is like /blblabla?query and not in two separate locations, ? is expected to be replaced by \0) * QUERY_STRING * */ static inline void cgi_set_env_vars(connection_t *connection_prop,char *real_basedir) { //Set CGI needed vars setenv("SERVER_SIGNATURE",SIGNATURE,true); setenv("SERVER_SOFTWARE",SIGNATURE,true); setenv("GATEWAY_INTERFACE","CGI/1.1",true); setenv("REQUEST_METHOD",connection_prop->method,true); //POST GET setenv("SERVER_NAME", getenv("HTTP_HOST"),true); //TODO for older http version this header might not exist setenv("REDIRECT_STATUS","Ciao",true); // Mah.. i'll never understand php, this env var is needed setenv("SCRIPT_FILENAME",connection_prop->strfile,true); //This var is needed as well or php say no input file... setenv("DOCUMENT_ROOT",real_basedir,true); setenv("REMOTE_ADDR",connection_prop->ip_addr,true); //Client's address setenv("SCRIPT_NAME",connection_prop->page,true); //Name of the script without complete path //Request URI with or without a query if (connection_prop->get_params==NULL) { setenv("REQUEST_URI",connection_prop->page,true); setenv("QUERY_STRING","",true);//Query after ? } else { setenv("QUERY_STRING",connection_prop->get_params,true);//Query after ? //file and params were the same string. //Joining them again temporarily int delim=connection_prop->page_len; connection_prop->page[delim]='?'; setenv("REQUEST_URI",connection_prop->page,true); connection_prop->page[delim]='\0'; } } /** * Sets env vars CONTENT_LENGTH and CONTENT_TYPE * just copying their value from HTTP_CONTENT_LENGTH * and HTTP_CONTENT_TYPE * Hence to work the HTTP_* env variables must be * already set * */ static inline void cgi_set_env_content_length() { //If Content-Length field exists char *content_l=getenv("HTTP_CONTENT_LENGTH"); if (content_l!=NULL) { setenv("CONTENT_LENGTH",content_l,true); setenv("CONTENT_TYPE",getenv("HTTP_CONTENT_TYPE"),true); } } /** * Will chdir to the same directory that contains the CGI script * */ static inline void cgi_child_chdir(connection_t *connection_prop) { //chdir to the directory char* last_slash=rindex(connection_prop->strfile,'/'); last_slash[0]=0; chdir(connection_prop->strfile); } /** * Closes unused ends of pipes, dups them, * sets the correct enviromental variables requested * by the CGI protocol and then executes the CGI. * * Will also set an alarm to try to prevent the script from * running forever. * */ static inline void cgi_execute_child(connection_t* connection_prop,string_t* post_param,char * executor,char* real_basedir,int *wpipe,int *ipipe) { close (wpipe[0]); //Closes unused end of the pipe close (STDOUT); dup(wpipe[1]); //Redirects the stdout #ifdef HIDE_CGI_ERRORS close (STDERR); #endif //Redirecting standard input only if there is POST data if (post_param->data!=NULL) {//Send post data to script's stdin close(STDIN); dup(ipipe[0]); } environ=NULL; //Clear env vars cgi_set_http_env_vars(connection_prop->http_param); cgi_set_SERVER_ADDR_PORT(connection_prop->sock); cgi_set_env_vars(connection_prop,real_basedir); cgi_set_env_content_length(); cgi_child_chdir(connection_prop); alarm(SCRPT_TIMEOUT);//Sets the timeout for the script execl(executor,executor,(char *)0); #ifdef SERVERDBG syslog(LOG_ERR,"Execution of %s failed",executor); perror("Execution of the page failed"); #endif exit(1); } static inline int cgi_waitfor_child(connection_t* connection_prop,string_t* post_param,char * executor,pid_t wpid,int *wpipe,int *ipipe) { int sock=connection_prop->sock; //Closing pipes, so if they're empty read is non blocking close (wpipe[1]); //Large buffer, must contain the output of the script char* header_buf=malloc(MAXSCRIPTOUT+HEADBUF); if (header_buf==NULL) { //Was unable to allocate the buffer int state; #ifdef SERVERDBG syslog(LOG_CRIT,"Not enough memory to allocate buffers for CGI"); #endif close (wpipe[0]); if (post_param->data!=NULL) {//Pipe created and used only if there is data to send to the script close (ipipe[0]); //Closes unused end of the pipe close (ipipe[1]); //Closes the pipe } kill(wpid,SIGKILL); //Kills cgi process waitpid (wpid,&state,0); //Removes zombie process return ERR_NOMEM;//Returns if buffer was not allocated } if (post_param->data!=NULL) {//Pipe created and used only if there is data to send to the script //Send post data to script's stdin write(ipipe[1],post_param->data,post_param->len); close (ipipe[0]); //Closes unused end of the pipe close (ipipe[1]); //Closes the pipe } { int state; waitpid (wpid,&state,0); //Wait the termination of the script } //Reads output of the script int e_reads=read(wpipe[0],header_buf,MAXSCRIPTOUT+HEADBUF); //Separating header from contents char* scrpt_buf=strstr(header_buf,"\r\n\r\n"); int reads=0; if (scrpt_buf!=NULL) { scrpt_buf+=2; scrpt_buf[0]=0; scrpt_buf=scrpt_buf+2; reads=e_reads - (int)(scrpt_buf-header_buf);//Len of the content } else {//Something went wrong, ignoring the output (it's missing the headers) e_reads=0; } if (e_reads>0) {//There is output from script unsigned int status; //Standard status { //Reading if there is another status char*s=strstr(header_buf,"Status: "); if (s!=NULL) { status=(unsigned int)strtoul( s+8 , NULL, 0 ); } else { status=200; //Standard status } } /* There could be other data, which didn't fit in the buffer, so we set reads to -1 (this will make connection non-keep-alive) and we continue reading and writing to the socket */ if (e_reads==MAXSCRIPTOUT+HEADBUF) { reads=-1; connection_prop->keep_alive=false; } /* Sends header, reads is the size true tells to use Content-Length rather than entity-length -1 won't use any ETag, and will eventually use the current time as last-modified */ send_http_header(status,reads,header_buf,true,-1,connection_prop); if (reads!=0) {//Sends the page if there is something to send write (sock,scrpt_buf,reads); } if (reads==-1) {//Reading until the pipe is empty, if it wasn't fully read before e_reads=MAXSCRIPTOUT+HEADBUF; while (e_reads==MAXSCRIPTOUT+HEADBUF) { e_reads=read(wpipe[0],header_buf,MAXSCRIPTOUT+HEADBUF); write (sock,header_buf,e_reads); } } //Closing pipe close (wpipe[0]); } else {//No output from script, maybe terminated... send_err(connection_prop,500,"Internal server error"); } free(header_buf); return 0; } /** Executes a CGI script with a given interpreter and sends the resulting output executor is the path to the binary which will execute the page post_param contains the post data sent to the page (if present). This can't be null, but the string pointer inside the struct can be null. real_basedir is the basedir (according to the virtualhost) connection_prop is the struct containing all the data of the request exec_page will fork and create pipes with the child. The child will clean all the envvars and then set new ones as needed by CGI. Then the child will call alarm to set the timeout to its execution, and then will exec the script. */ int exec_page(char * executor,string_t* post_param,char* real_basedir,connection_t* connection_prop) { #ifdef SENDINGDBG syslog(LOG_INFO,"Executing file %s",connection_prop->strfile); #endif int wpid;//Child's pid int wpipe[2];//Pipe's file descriptor int ipipe[2];//Pipe's file descriptor, used to pass POST on script's standard input //Pipe created and used only if there is POST data to send to the script if (post_param->data!=NULL) { pipe(ipipe);//Pipe to comunicate with the child } //Pipe to get the output of the child pipe(wpipe);//Pipe to comunicate with the child if ((wpid=fork())<0) { //Error, returns a no memory error #ifdef SENDINGDBG syslog(LOG_CRIT,"Unable to fork to execute the file %s",connection_prop->strfile); #endif if (post_param->data!=NULL) { close(ipipe[0]); close(ipipe[1]); } close(wpipe[1]); close(wpipe[0]); return ERR_NOMEM; } else if (wpid==0) { /* never returns */ cgi_execute_child(connection_prop,post_param,executor,real_basedir,wpipe,ipipe); } else { //Father: reads from pipe and sends return cgi_waitfor_child(connection_prop,post_param,executor,wpid,wpipe,ipipe); } return 0; } weborf-0.13.3/weborf.conf.50000644000175100017510000000472412671354240012316 00000000000000.TH Weborf 5 "Sep 13, 2009" "Minimal webserver" .SH NAME .B weborf.conf \- configuration file for weborf daemon .SH SYNOPSIS /etc/weborf.conf .SH DESCRIPTION Weborf is a minimal webserver. Also has a limited support for webdav. .br Can be started as stand-alone or as SystemV daemon. This manual page documents Weborf's configuration file, used only when it is started as daemon. .br On debian systems, the script to run weborf as a daemon is located into /usr/share/docs/weborf and has to be manually copied into /etc/init.d .br Weborf is released under the GNU General Public License version 3. .SH DESCRIPTION Options are case sensitive. Immediately followed by the equal = sign, without any space between name and value. Lines beginning with # will be ignored and treated as comments. .SS .TP .B indexes By default weborf searches for index.html. Anyway it is possible to specify a different index file and also many index files. Name of the pages must be separated by a comma and between them there aren't spaces. .TP .B basedir Default base directory used by the webserver. The default means that this will be used also when virtual hosts are enabled, if the requested host is unknown. Of course the user used for the webserver will need to have access to this directory. .TP .B use-cgi Can be true or false. If false weborf will handle all files as normal files. Otherwise it will use the CGI protocol to execute some files. .TP .B use-mime Can be true or false. If true weborf will send the Content-Type header to the clients. Turning it off will increase speed but might cause problems with some old clients. .TP .B cgi List of extensions to consider as dynamic pages and binaries to execute them .TP .B auth-bin Path of the binary that provides authentication to weborf .TP .B auth-socket Path of the unix socket that weborf will use to connect to the authentication server .TP .B cachedir Will set the path of the directory used for caching .TP .B user Username of the user that will run the webserver. On debian this is usually www-data. .TP .B virtual This directive is used to enable virtualhosts. One line is needed for each port. The format is: virtual#port#domain1=basedir1,domain2=basedir2 .SS .SH EXAMPLE Example file can be found in /usr/share/doc/weborf/examples/weborf.conf .SH "SEE ALSO" .BR weborf (1) .SH VERSION .BR Weborf 0.13 .SH WEB .BR http://ltworf.github.io/weborf/ .SH AUTHORS .nf Salvo "LtWorf" Tomaselli Salvo Rinaldi .br weborf-0.13.3/mystring.h0000644000175100017510000000225012671354240012035 00000000000000/* Weborf Copyright (C) 2007 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #ifndef WEBORF_MYSTRING_H #define WEBORF_MYSTRING_H #include #include #include #include #include "instance.h" #include "types.h" void split_get_params(connection_t* connection_prop); bool endsWith(char *str, char *end,ssize_t len_str,ssize_t len_end); void delChar(char *string, int pos, int n); void strReplace(char *string, char *substr, char with); void replaceEscape(char *string); void strToUpper(char *str); #endif weborf-0.13.3/CHANGELOG0000644000175100017510000002244512671354237011240 000000000000000.13.3 - Better desktop integration for qweborf 0.13.2 - Fix base64 decoding bug 0.13.1 - Port qweborf to Python3 and Qt5 0.13 - Shows last modified column in directory listing (Rev 419) - Webdav module can send mimetype - Bug: fixes denial of service in case of malformed header range (Rev 429) - Bug: ported fix from 0.12.2 - Faster listing of directories with several hidden files - PROPFIND now gives %-escaped URIs (Rev 444) - Improved handling of Connection header in responses - Sends reason phrase in HTTP response - Directory listing can be cached on disk - Can support large files - Added GiB measure in directory listing - Ported fix from 0.12.3 (Rev. 465) - Reduced number of params for functions - Uses pthread calls for TLS instead of relying on __thread that doesn't work on OsX - Dav's PROPFIND with different required properties can be cached on disk - Can send Content-Type - Can be used with inetd/xinetd - Fixes crash on invalid request (Rev 492) - Will no longer terminate on failed accept - Heavy code refactory - Webdav method MOVE is now faster on directories - Support for embedded authentication policy - Support for If-Range header (Rev 516) - Migrated to GNU autotools - Now logs HTTP status code for each request - Ships qweborf: QT GUI for simple file sharing - Truncates files on PUT - Can send directories as tar.gz files 0.12.5 - Fixes DoS occurring with malformed fields in HTTP request 0.12.4 - Fixes DoS occurring on malformed HTTP request, backported from trunk 0.12.3 - Fixes directory traversal vulnerability 0.12.2 - Fixes DoS occurring when wide chars are used in some headers 0.12.1 - Fixes DoS occurring on malformed Range header, backported from trunk 0.12 - Fixed bug: now threads are closed again (Rev 305) - Using keep-alive with CGI only in case of small pages (Rev 306) - Reduced maximum size of generated pages (Rev 307) - Adjusted size of the buffers (Rev 307) - ETag headers are now sent only if the resource is static (Rev 308) - "Moved permanently" code is returned instead of "see other" when client requests directory without ending / (Rev 209) - Added wrapper for CGI python, which replaces the previous one (Rev 312) - Support for custom CGI formats - LSB tags added to the init script (Rev 323) - Support to PUT,DELETE,OPTIONS methods - Fixed bug: some file descriptors caused thread's termination (Rev 341) - Added wrapper for executables CGIs - Stub for webdav - Implemented MKCOL, COPY, MOVE methods - Bug: socket were closed randomly on non GET/POST methods - Bug: tamed buffers do not affect subsequent connections on the same thread - Daemon is able to start authentication server too, reading about it from weborf.conf (Rev 359) - Better and more resistant xml parsing of PROPFIND requests (Rev 363) - Bug: addresses are properly converted into strings (Rev 373) - CGI does chdir into script's directory (Rev 374) - Enables logging - Uses reentrant version of readdir (Rev 381) - Added more controls on memory allocation - Bug: buffer size corrected in queue.c - Logs insufficient memory - Can compile on OpenSolaris (manual edit of Makefile is needed) - Edited instance.h to workarond OpenSolaris bug #6775831 - Can use SIGUSR1 to print internal status on stdout - Edited daemon script to pass the new lintian's test - Attempt to resolve race-condition by refactoring - Changed astyle parameters to use the new version - Sorts content of directories when generating html index - Bug: replaced unsafe sprintf with snprintf (Rev 415) 0.11 - Support for ETag header - Support for If-None-Match header. Weborf will not re-send files that are cached into the browser - Cleaned up some send_header functions - Fixed bug: malformed range header was able to cause segfault (Rev 251) - Support for Last-Modified header (Rev 252) - Introduced optimizations in parsing request and sending an header - Code refactory to reduce amount of passed parameters - Will now send connection header if an old client is using keep-alive - Corrected sending post data to cgi-bin - Fixed REQUEST_URI header which was broken some revisions ago - Doesn't send CGI errors and warning to the client anymore - Shows CGI errors on standard error, but an option in options.h can hide them - Optimizations in CGI - Reduced system calls number - Reduced number of strlen and strstr - Fixed warnings in manpages 0.10 - Pipe with scripts are now closed - Support for cgi-php - Fixed some possibilities of buffer overflow - Enlarged default head's buffer, necessary for script generated headers - When the script is terminated for timeout, error 500 is sent to the client - Fixed error in cgi wrapper that didn't allow to use \r\n\r\n sequence in output - Compile on MacOsX without needing to edit the code - Embedded support for cgi - Support for list of index files - List of index files changable in weborf.conf - Refactory of code to send/execute pages and generate dir listing - Changed default optimizations - Support for virtualhost - Support for virtualhost in weborf.conf - Support for gzip encoding, when supported by client - Support for enabling/disabling cgi from weborf.conf - Heavy optimization in finding the end of the header - Added a buffered reader to reduce the overall amount of read syscalls - Replaced deprecated inet_ntoa with its replacement inet_ntop - POST can read binary data, with 0 bytes in the stream - Correct passing POST data to script. It brokes php since it has a bug, reported as #47825 - Added support to timeout - Addresses are converted in strings in threads instead of main thread. - Added manpage for weborf.conf - Queue does less operations on memory (rev 231) - Changed authentication from child process to unix socket (rev 232) - Partial (but enough) support for range headers (rev 235) - Solved problem which caused 100% cpu usage (Salvo Rinaldi) - Solved problem which caused partial resending of files - Removed redoundant conditions to free memory (Angelo Puglisi) 0.9 - Bug: fixed size hadling of NBUFFER - Reduced standard size of NBUFFER - Make install installs weborf as a daemon executable by init - Switch to compile using ipv4 or ipv6 - Memory leak fixed - Bug: can now handle firefox's post requests - Bug: no more segmentation fault on post requests issued by squid - Handles pipelined and not-pipelined requests - Timeout for scripts (not auth scripts) - Bug: buffer for requests is now reset after every request - Increased speed for identify request - Bug: unsigned value used when signed was needed - Bug: parameters within HTTP requests are now read correctly - Changed buffer allocation for string IP addresses in IPv4 mode - Possibility to use scripts as normal files - Exit codes now have a meaning (documented in manpage) 0.8 - Improved file listing - Added support for large files - Bug: Now authentication works even with spaces within file or directory's names - Prepared handling for content-lenght - Bug: POST works again - Maximum size for POST requests 0.7 - Escape sequences in POST requests are now correctly handled - Daemon mode added - Memory leak removed - Support for Basic authentication - Parsing program arguments with getopt - IPv6 support - Improved file listing - Changed thread policy: Now the MAXTHREAD number can be reached, because the last group of threads can be smaller - Some small changes to make it faster - Improved handling several requests on the same connection. It SHOULD work better now. 0.6 - Added comments - Improved speed on string operations - Memory leak corrected in script execution and page sending - Added control on non http messages - Reduced the use of mutex during thread creation - Improved signal handling - Reduced malloc's total number, this will increase speed - Uses printf's return value instead of strlen() - Corrected directory listing. Now doesn't show link to parent if already in parent directory. - Directory listing doesn't show link to self anymore. - Cleaned up logging. It will hide many informations by default - Now threads are aware of client's IP address 0.5 - Bug: active thread's counter was not reduced on thread's termination - Logs dropped connections due to not enough threads - Handles escape's sequences in url - Fixed a warning occurred in amd64 architecture - Improved list's generation for directories without index - Bug: directories without the ending / are now listed correctly - Added stub (not working) for authentication request - HTTP's request parameters are passed as enviromentals vars to the scripts - Added experimental support to POST method, and use of enviromental vars 0.4 - Bug: Relative paths can't be used, so the client can't go outside the basedir - Support for files with spaces in the name - Bug: Added checks on memory allocation failures, and in this case send an error to the client - Changed error's sending system - Threads are detached - Added a thread to monitor how many free threads there are, to stop some if there are too much - manpage added - Added make install, to copy the binary in /usr/local/bin and install manpage - It is possible to start weborf as root to use a low port number and then change the user 0.3 - Only a few threads are created when started. 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This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #include #include int main() { execl(getenv("SCRIPT_FILENAME"),getenv("SCRIPT_FILENAME"),NULL); exit(1); //Unable to exec the wanted stuff } weborf-0.13.3/cgi_wrapper/py_wrapper.c0000644000175100017510000000160012671354237014652 00000000000000/* Weborf Copyright (C) 2009 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #include #include int main() { execl("/usr/bin/python","python",getenv("SCRIPT_FILENAME"),NULL); exit(1); //Unable to exec the wanted stuff } weborf-0.13.3/configuration.c0000644000175100017510000001650712671354237013043 00000000000000/* Weborf Copyright (C) 2010 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #include "options.h" #include #include #include #include #include #include #include "configuration.h" #include "types.h" #include "utils.h" #include "cachedir.h" #include "auth.h" weborf_configuration_t weborf_conf= { .tar_directory=false, .is_inetd=false, .virtual_host = false, .exec_script = true, .ip = NULL, .port = PORT, .basedir=BASEDIR, .uid = ROOTUID, #ifdef SEND_MIMETYPES .send_content_type = false, #endif }; /** * Enables sending mime types in response to GET requests * or prints an error and exits if the support was not * compiled * */ static void configuration_enable_sending_mime() { #ifdef SEND_MIMETYPES weborf_conf.send_content_type=true; #else fprintf(stderr,"Support for MIME is not available\n"); exit(19); #endif } /** Sets the base dir, making sure that it is really a directory. */ static void configuration_set_basedir(char * bd) { struct stat stat_buf; stat(bd, &stat_buf); if (!S_ISDIR(stat_buf.st_mode)) { //Not a directory printf("%s must be a directory\n",bd); exit(1); } weborf_conf.basedir = bd; } /** * Sets default CGI configuration, * run .php and .py as CGI * */ static void configuration_set_default_CGI() { weborf_conf.cgi_paths.len=4; weborf_conf.cgi_paths.data[0]=".php"; weborf_conf.cgi_paths.data[1]=CGI_PHP; weborf_conf.cgi_paths.data[2]=".py"; weborf_conf.cgi_paths.data[3]=CGI_PY; weborf_conf.cgi_paths.data_l[0]=strlen(".php"); weborf_conf.cgi_paths.data_l[1]=strlen(CGI_PHP); weborf_conf.cgi_paths.data_l[2]=strlen(".py"); weborf_conf.cgi_paths.data_l[3]=strlen(CGI_PY); } /** * Sets the default index file * */ static void configuration_set_default_index() { weborf_conf.indexes[0] = INDEX; weborf_conf.indexes_l = 1; } static void configuration_set_cgi(char *optarg) { int i = 0; weborf_conf.cgi_paths.len = 1; //count of indexes weborf_conf.cgi_paths.data[0] = optarg; //1st one points to begin of param while (optarg[i++] != 0) { //Reads the string if (optarg[i] == ',') { optarg[i++] = 0; //Nulling the comma //Increasing counter and making next item point to char after the comma weborf_conf.cgi_paths.data[weborf_conf.cgi_paths.len++] = &optarg[i]; if (weborf_conf.cgi_paths.len == MAXINDEXCOUNT) { perror("Too much cgis, change MAXINDEXCOUNT in options.h to allow more"); exit(6); } } } for (i=0; i. @author Salvo "LtWorf" Tomaselli */ #ifndef WEBORF_CGI_H #define WEBORF_CGI_H #include "options.h" #include "types.h" #define STDIN 0 #define STDOUT 1 #define STDERR 2 int exec_page(char * executor,string_t* post_param,char* real_basedir,connection_t* connection_prop); #endifweborf-0.13.3/buffered_reader.c0000644000175100017510000001144312671354237013272 00000000000000/* Weborf Copyright (C) 2009 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #include "options.h" #include #include #include #include #include "buffered_reader.h" #include "types.h" /** This funcion inits the struct allocating a buffer of the specified size. It will return 0 on success and 1 on fail. */ int buffer_init(buffered_read_t * buf, ssize_t size) { buf->buffer = malloc(sizeof(char) * size); buf->size = size; buffer_reset(buf); return (buf->buffer == NULL) ? 1 : 0; } /** Resets the pointers, so the buffer is ready for new reads on new file descriptor */ void buffer_reset (buffered_read_t * buf) { buf->end = buf->start = buf->buffer; } /** This function will free the memory allocated by the buffer used in the struct. */ void buffer_free(buffered_read_t * buf) { free(buf->buffer); } static ssize_t buffer_fill(int fd, buffered_read_t * buf) { ssize_t r; buf->start = buf->buffer; //Timeout implementation struct pollfd monitor[1]; monitor[0].fd = fd; //File descriptor to monitor monitor[0].events = POLLIN; //Monitor on input events //Waits the timeout or reads the data. //If timeout is reached and no input is available //will behave like the stream is closed. if (poll(monitor, 1, READ_TIMEOUT) == 0) { r = 0; } else { r = read(fd, buf->buffer, buf->size); } if (r <= 0) { //End of the stream buf->end = buf->start; } else { buf->end = buf->start + r; } return r; } /** This function is designed to be similar to a normal read, but it uses an internal buffer. When the buffer is empty, it will try to fill it. An important difference from the normal read is that this function will wait until the requested amount of bytes are available, or until the timeout occurs. Timeout duration is defined with the READ_TIMEOUT define. On some special cases, the read data could be less than the requested one. For example if end of file is reached and it is impossible to do further reads. */ ssize_t buffer_read(int fd, void *b, ssize_t count, buffered_read_t * buf) { ssize_t wrote = 0; //Count of written bytes ssize_t available, needed; //Available bytes in buffer, and requested bytes remaining while (wrote < count) { available = buf->end - buf->start; needed = count - wrote; if (needed <= available) { //More data in buffer than needed memcpy(b, buf->start, needed); buf->start += needed; return wrote + needed; } else { //Requesting more data than available if (available > 0) {//Empty the remaining data in the buffer memcpy(b, buf->start, available); b += available; wrote += available; } //Filing the buffer again if (buffer_fill(fd,buf) <= 0) { //End of the stream return wrote; } } } /*while */ return wrote; } /** * This function returns how many bytes must be read in order to * read enough data for it to end with the string needle. * strlen(needle) must be added to the returned value to include the * needle string in the result of the read. * * If the string needle is not in the buffer then the entire size * of the data present in cache will be return. * */ size_t buffer_strstr(int fd, buffered_read_t * buf, char * needle) { if (buf->end - buf->start==0) { buffer_fill(fd,buf); } buf->end[0]=0; char *r=strstr(buf->start,needle); if (r==NULL) { return buf->end - buf->start; } else { return r-buf->start; } } /*#include #include #include #include int main () { buffered_read_t buf; buffer_init(&buf, 30); int fp=open("/home/salvo/.bash_history",O_RDONLY); char * k=malloc (600); int end=0; while (1) { int size=buffer_strstr(fp,&buf,"\n")+1; end=buffer_read(fp,k,size,&buf); if (end. @author Salvo "LtWorf" Tomaselli */ #include "options.h" #include "mystring.h" /** This function converts a string to upper case */ void strToUpper(char *str) { int i = -1; while (str[++i]) { str[i] = toupper(str[i]); } } /** This function splits the page name from the GET params. It also sets the value for the page_len field */ void split_get_params(connection_t* connection_prop) { int i=0; connection_prop->get_params=NULL; while (connection_prop->page[i]!=0) { if (connection_prop->page[i]=='?') { connection_prop->page[i]=0; connection_prop->get_params=&connection_prop->page[i+1]; break; } i++; } connection_prop->page_len=i; } /*void split_get_params(connection_t* connection_prop) { char *separator=strstr(connection_prop->page,"?"); if (separator==NULL) { connection_prop->get_params=NULL; connection_prop->page_len=strlen(connection_prop->page); } else { separator[0]=0; connection_prop->get_params=separator+1; connection_prop->page_len=separator-connection_prop->page; } }*/ /** Replaces escape sequences in the form %HEXCODE with the correct char This is used for URLs, after the transformation the URL will probably represent a file that exists on filesystem. Since after this replace the string will be unchanged or shorter, no additional buffer will be needed. This function is in-place, doesn't create copies but changes the original string. */ void replaceEscape(char *string) { char e_seq[3]; e_seq[2] = 0; //Parses the string while ((string=strstr(string,"%"))!=NULL) { e_seq[0] = string[1]; e_seq[1] = string[2]; delChar(string, 0, 2); //Deletes 2 chars from the url //Replaces the 3rd character with the char corresponding to the escape string[0] = strtol(e_seq, NULL, 16); } } /** This function replaces, within the string string, the substring substr with the char with. This function is in-place, doesn't create copies but changes the original string. */ void strReplace(char *string, char *substr, char with) { char *pointer; int substrlen = strlen(substr); while ((pointer = strstr(string, substr)) != NULL) { delChar(pointer, 0, substrlen - 1); pointer[0] = with; string=pointer; } } /** This function deletes n chars from the string, starting from the position pos. In case deleting of more chars than the string's len itself, the string will be returned unchanged. This function doesn't create copies but changes the original string. */ void delChar(char *string, int pos, int n) { size_t l=strlen(string+pos); if (l. @author Salvo "LtWorf" Tomaselli */ #ifndef WEBORF_MIME_H #define WEBORF_MIME_H #include "options.h" #include "types.h" int mime_init(magic_t *token); void mime_release(magic_t token); const char* mime_get_fd (magic_t token,int fd,struct stat *sb); #endifweborf-0.13.3/utils.h0000644000175100017510000000217512671354240011327 00000000000000/* Weborf Copyright (C) 2007 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #ifndef WEBORF_UTILS_H #define WEBORF_UTILS_H #include "types.h" #include "options.h" int list_dir(connection_t *connection_prop, char *html, unsigned int bufsize, bool parent); void help(); void version(); void moo(); void print_start_disclaimer(int argc, char *argv[]); bool get_param_value(char *http_param, char *parameter, char *buf, ssize_t size,ssize_t param_len); void daemonize(); void print_capabilities(); #endif weborf-0.13.3/qweborf.setup.py0000644000175100017510000000053212671354240013167 00000000000000from distutils.core import setup setup( version='0.13.3', name='qweborf', author="Salvo 'LtWorf' Tomaselli", author_email='tiposchi@tiscali.it', maintainer="Salvo 'LtWorf' Tomaselli", maintainer_email='tiposchi@tiscali.it', url='http://ltworf.github.io/weborf/', license='GPL3', packages=('qweborf',), ) weborf-0.13.3/auth.h0000644000175100017510000000161412671354237011133 00000000000000/* Weborf Copyright (C) 2010 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #ifndef WEBORF_AUTH_H #define WEBORF_AUTH_H #include "types.h" #include "options.h" void auth_set_socket(char *u_socket); int auth_check_request(connection_t* connection_prop); #endifweborf-0.13.3/mynet.c0000644000175100017510000001202712671354240011313 00000000000000/* Weborf Copyright (C) 2010 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #include "options.h" #include #include #include #include #include #include #include #include #include #include #include "types.h" #include "mynet.h" extern weborf_configuration_t weborf_conf; /** * Creates the server socket and performs some setsockopt * on it. * */ int net_create_server_socket() { int s; int val; //Creates the socket #ifdef IPV6 s = socket(PF_INET6, SOCK_STREAM, 0); #else s = socket(PF_INET, SOCK_STREAM, 0); #endif /* This futile system call is here just because a debian mantainer decided that the default behavior must be to listen only to IPv6 connections excluding IPv4 ones. So this restores the logic and normal behavior of accepting connections without being racist about the client's address. */ #ifdef IPV6 val=0; setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, (char *)&val, sizeof(val)); #endif val = 1; //Makes port reusable immediately after termination. if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val)) < 0) { perror("ruseaddr(any)"); syslog(LOG_ERR, "reuseaddr(any)"); #ifdef IPV6 char *suggestion = "If you don't have IPv6 support in kernel, try recompiling weborf, removing the line '#define IPV6' from options.h\n"; write(2, suggestion, strlen(suggestion)); #endif return -1; } return s; } void net_bind_and_listen(int s) { #ifdef IPV6 struct sockaddr_in6 locAddr; //Local and remote address //socklen_t ipAddrL = sizeof(struct sockaddr_in6); #else struct sockaddr_in locAddr; int ipAddrL = sizeof(struct sockaddr_in); #endif #ifdef IPV6 //Bind memset(&locAddr, 0, sizeof(locAddr)); locAddr.sin6_family = AF_INET6; locAddr.sin6_port = htons(strtol(weborf_conf.port, NULL, 0)); if (weborf_conf.ip == NULL) { //Default ip, listens to all the interfaces locAddr.sin6_addr = in6addr_any; } else { //Custom ip if (inet_pton(AF_INET6, weborf_conf.ip, &locAddr.sin6_addr) == 0) { printf("Invalid IP address: %s\n", weborf_conf.ip); exit(2); } } if (bind(s, (struct sockaddr *) &locAddr, sizeof(locAddr)) < 0) { perror("trying to bind"); #ifdef SOCKETDBG syslog(LOG_ERR, "Port %d already in use", ntohs(locAddr.sin6_port)); #endif exit(3); } #else //Prepares socket's address locAddr.sin_family = AF_INET; //Internet socket { //Check the validity of port param and uses it unsigned int p = strtol(weborf_conf.port, NULL, 0); if (p < 1 || p > 65535) { printf("Invalid port number: %d\n", p); exit(4); } locAddr.sin_port = htons(p); } if (weborf_conf.ip == NULL) weborf_conf.ip = "0.0.0.0"; //Default ip address if (inet_aton(weborf_conf.ip, &locAddr.sin_addr) == 0) { //Converts ip to listen in binary format printf("Invalid IP address: %s\n", weborf_conf.ip); exit(2); } #ifdef SOCKETDBG syslog(LOG_INFO, "Listening on address: %s:%d", inet_ntoa(locAddr.sin_addr), ntohs(locAddr.sin_port)); #endif //Bind if (bind(s, (struct sockaddr *) &locAddr, ipAddrL) == -1) { perror("trying to bind"); #ifdef SOCKETDBG syslog(LOG_ERR, "Port %d already in use", ntohs(locAddr.sin_port)); #endif exit(3); } #endif listen(s, MAXQ); //Listen to the socket } void net_getpeername(int socket,char* buffer) { #ifdef IPV6 struct sockaddr_storage t_addr; socklen_t addr_l=sizeof(t_addr); getpeername(socket, (struct sockaddr *)&t_addr, &addr_l); if (t_addr.ss_family==AF_INET) { struct sockaddr_in *addr =(struct sockaddr_in *)&t_addr; char temp_buffer[INET_ADDRSTRLEN]; inet_ntop(AF_INET, &(addr->sin_addr), temp_buffer, INET_ADDRSTRLEN); snprintf(buffer,INET6_ADDRSTRLEN,"::ffff:%s",temp_buffer); } else { struct sockaddr_in6 *addr =(struct sockaddr_in6 *)&t_addr; inet_ntop(AF_INET6, &(addr->sin6_addr), buffer, INET6_ADDRSTRLEN); } #else struct sockaddr_in addr; socklen_t addr_l=sizeof(struct sockaddr_in); getpeername(socket, (struct sockaddr *)&addr,&addr_l); inet_ntop(AF_INET, &addr.sin_addr, buffer, INET_ADDRSTRLEN); #endif } weborf-0.13.3/README.md0000644000175100017510000000121612671530100011257 00000000000000User friendly webserver qweborf ======= Provides a GUI to share local files. It can do NAT traversal to share files outside of the local network. Can enable authentication and sending directories as `.tar.gz` files. weborf ====== The web server used by qweborf. Can be used from inetd, supports WebDAV, caching, CGI, virtual hosts. Compile ======= These are the steps to compile weborf. ``` autoreconf -f -i # Only if you cloned from git make clean ./configure make sudo make install ``` To compile qweborf. ``` pyuic5 qweborf/main.ui > qweborf/main.py python3 qweborf.setup.py install install -D qweborf/qweborf /usr/local/bin/qweborf ``` weborf-0.13.3/embedded_auth.h0000644000175100017510000000572312671354240012743 00000000000000/* Weborf Copyright (C) 2010 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ /** * This file contains user defined embedded autentication * to avoid the usage of an external daemon for authentication. * The use of this, will make things faster and parallel, at the cost * of needing to define it at compile time * * Everything in this file should be between the "#ifdef EMBEDDED_AUTH" * and its "#endif" to avoid the compilation of unused methods * */ //#define EMBEDDED_AUTH #ifdef EMBEDDED_AUTH /** * This function is just example code, can be changed or deleted */ static int emb_check_password(char *username, char *password) { char *user="gentoo"; char *pass="lalalala"; if (strncmp(username,user,strlen(user))==0 && strncmp(password,pass,strlen(pass))==0) return 0; return -1; } /** * This function will be used if EMBEDDED_AUTH is defined, do not modify its signature! * * page: URI of requested page * ip_addr: IP address of the client (it can be an IPv6, depending how weborf is compiled) * method: HTTP method of the request * username: Username, if provided, null otherwise * password: Password, if provided, null otherwise * http_param: Headers of the request * * RETURN VALUE: * Return 0 to allow the request, -1 to deny it. * * NOTES: * The actual content of the function must be regarded as an example, modify it according to your * own needs. * Only use reentrant calls in this function. Weborf is multithreaded. */ static int c_auth(char *page, char *ip_addr, char *method, char *username, char *password, char *http_param) { char *allowed_prefix="::ffff:10."; char *foto = "/foto/"; //Allow anything from 10.* if (strncmp(allowed_prefix,ip_addr,strlen(allowed_prefix))==0) return 0; //Allow PROPFIND and OPTIONS with authentication (to allow read only webdav from anywhere) if ((strncmp(method,"PROPFIND",strlen("PROPFIND"))==0) || (strncmp(method,"OPTIONS",strlen("OPTIONS"))==0)) return emb_check_password(username,password); //Deny all except GET and POST else if (!(strncmp(method,"GET",strlen("GET"))==0 || strncmp(method,"POST",strlen("POST"))==0)) { return -1; } //request authentication for photos if (strncmp(foto,page,strlen(foto))==0) return emb_check_password(username,password); return 0; } #endif weborf-0.13.3/daemon/0000755000175100017510000000000012671354237011342 500000000000000weborf-0.13.3/daemon/weborf0000755000175100017510000001447412671354237012506 00000000000000#!/bin/bash # Copyright (C) 2008 Salvo "LtWorf" Tomaselli # # Relation is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # # author Salvo "LtWorf" Tomaselli ### BEGIN INIT INFO # Provides: weborf # Required-Start: $network $local_fs $syslog $remote_fs # Required-Stop: $remote_fs # Should-Start: $named # Should-Stop: # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: Fast and small webserver # Description: Weborf is a configurationless webserver mainly meant to allow users # to easily share their directories over the web. # It also supports php5-cgi. ### END INIT INFO function clear_cache { CDIR=`cat /etc/weborf.conf | egrep "^cachedir=" | cut -d= -f2` rm -rf $CDIR/* } function status { if ! test -e $PIDFILE then echo "Weborf doesn't appear to be running" else echo "Weborf appears to be running" fi } function stopWeborf { #Stops all the running weborf servers (the ones started with init) if ! test -e $PIDFILE then echo "Weborf is not running or it was not started by init" exit 0 fi echo -n "Stopping weborf " for i in `cat $PIDFILE` do echo -n .. kill $i done echo " done" rm -f $PIDFILE } function startWeborf { #This function will start all the needed processes for weborf if test -e $PIDFILE then echo "Weborf already running, if you're sure it is not running, delete $PIDFILE" exit 2 fi if test -n "$AUTH_BIN" then echo "Starting authentication server for weborf" nohup $AUTH_BIN > /dev/null 2> /dev/null & echo ${!} >> $PIDFILE # Writes PID so it will be terminated fi virtuals=`cat /etc/weborf.conf | egrep ^virtual` if test -z "$virtuals" then echo "Starting weborf" nohup $DAEMON $DAEMON_OPTS $CACHE_DIR $AUTH_SOCKET $MIME $CGI $CGI_BIN -p80 -u $USERID -b $BASEDIR -I $INDEXES >/dev/null 2> /dev/null & echo ${!} >> $PIDFILE # Writes PID so weborf can be terminated else #Virtual hosts for i in $virtuals do PORT=`echo $i | cut -d# -f2` CMDLINE=`echo $i | cut -d# -f3` echo "Starting weborf on port $PORT" nohup $DAEMON $DAEMON_OPTS $CACHE_DIR $AUTH_SOCKET $MIME $CGI $CGI_BIN -p $PORT -u $USERID -b $BASEDIR -I $INDEXES -V "$CMDLINE" > /dev/null 2> /dev/null & echo $! >> $PIDFILE # Writes PID so weborf can be terminated done fi } PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin DAEMON=/usr/bin/weborf # Introduce the server's location here NAME=weborf # Introduce the short server's name here PIDFILE=/var/run/$NAME.pid test -x $DAEMON || exit 0 . /lib/lsb/init-functions # Default options, these can be overriden by the information # at /etc/default/$NAME DAEMON_OPTS="" # Additional options given to the server DIETIME=3 # Time to wait for the server to die, in seconds # If this value is set too low you might not # let some servers to die gracefully and # 'restart' will not work #STARTTIME=2 # Time to wait for the server to start, in seconds # If this value is set each time the server is # started (on start or restart) the script will # stall to try to determine if it is running # If it is not set and the server takes time # to setup a pid file the log message might # be a false positive (says it did not start # when it actually did) LOGFILE=$LOGDIR/$NAME.log # Server logfile # Include defaults if available if [ -f /etc/default/$NAME ] ; then . /etc/default/$NAME fi USERNAME=`cat /etc/weborf.conf | egrep "^user=" | cut -d= -f2` BASEDIR=`cat /etc/weborf.conf | egrep "^basedir=" | cut -d= -f2` USERID=`cat /etc/passwd | fgrep $USERNAME | cut -d: -f3` #Gets the userid INDEXES=`cat /etc/weborf.conf | egrep "^indexes=" | cut -d= -f2` USE_CGI=`cat /etc/weborf.conf | egrep "^use-cgi=" | cut -d= -f2` USE_MIME=`cat /etc/weborf.conf | egrep "^use-mime=" | cut -d= -f2` CGI_BIN=`cat /etc/weborf.conf | egrep "^cgi=" | cut -d= -f2` CACHE_DIR=`cat /etc/weborf.conf | egrep "^cachedir=" | cut -d= -f2` # Authentication AUTH_BIN=`cat /etc/weborf.conf | grep "^auth-bin=" | cut -d= -f2` AUTH_SOCKET=`cat /etc/weborf.conf | grep "^auth-socket=" | cut -d= -f2` if test -z "$USERNAME" || test "$USERNAME" = "root" then logger -s -perror "You are trying to run weborf as root!" exit 0 #LSB requires 0 termination in each case fi if test -n "$CACHE_DIR" then if ! test -d $CACHE_DIR then #Does not exist or it is not a directory rm -rf $CACHE_DIR mkdir -m700 $CACHE_DIR fi chown $USERNAME $CACHE_DIR CACHE_DIR="-C $CACHE_DIR" fi if test -n "$AUTH_SOCKET" then AUTH_SOCKET="-a $AUTH_SOCKET" fi if test -n "$CGI_BIN" then CGI_BIN=-c $CGI_BIN fi if test $USE_CGI = "false" then CGI="-x" fi if test $USE_MIME = "true" then MIME="-m" fi if test -z $USERID then echo "Unable to find user $USERNAME" echo "Check your configuration" exit 1 fi case $1 in start) startWeborf;; stop) stopWeborf;; restart) stopWeborf startWeborf;; force-reload) stopWeborf startWeborf;; status) status;; clearcache) clear_cache;; * ) echo "Usage: $0 {start|stop|restart|force-reload|status|clearcache}";; esac weborf-0.13.3/types.h0000644000175100017510000001004712671354240011330 00000000000000/* Weborf Copyright (C) 2010 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #ifndef WEBORF_TYPES_H #define WEBORF_TYPES_H #include "options.h" #include //Adds boolean type #include #include #include #include #ifdef SEND_MIMETYPES #include #else typedef void* magic_t; #endif typedef struct { long int id; //ID of the thread magic_t mime_token; //Token for libmagic } thread_prop_t; typedef struct { ssize_t len; //length of the array char *data[MAXINDEXCOUNT]; //Array containing pointers int data_l[MAXINDEXCOUNT]; //Array containing len of strings } array_ll; typedef struct { int num, size; //Filled positions in the queue, and its maximum size int head, tail; //pointers to head and tail of the round queue int *data; //Socket with client #ifdef IPV6 struct sockaddr_in6 *addr; //Local and remote address #else struct sockaddr_in *addr; #endif pthread_mutex_t mutex; //mutex to modify the queue pthread_cond_t for_space, for_data; int n_wait_sp, n_wait_dt; } syn_queue_t; typedef struct { int sock; //File descriptor for the socket #ifdef IPV6 char ip_addr[INET6_ADDRSTRLEN]; //ip address in string format #else char ip_addr[INET_ADDRSTRLEN]; #endif bool keep_alive; //True if we are using pipelining short int protocol_version; //See defines like HTTP_something int method_id; //Index of the http method used (GET, POST) char *method; //String version of the http method used char *http_param; //Param string char *page; //Requested URI ssize_t page_len; //Lengh of the page string char *get_params; //Params in the URI, after the ? char char *strfile; //File on filesystem ssize_t strfile_len; //Length of string strfile struct stat strfile_stat; //Stat of strfile int strfile_fd; //File descriptor for strfile char *basedir; //Basedir for the host unsigned int status_code; //HTTP status code } connection_t; typedef struct { ssize_t len; //length of the string char *data; //Pointer to string } string_t; typedef struct { pthread_mutex_t mutex; //Mutex to access this struct unsigned int free; //Free threads unsigned int count; //thread count } t_thread_info; typedef struct { char *basedir; char* authsock; //Executable that will authenticate uid_t uid; //Uid to use after bind #ifdef SEND_MIMETYPES bool send_content_type; //True if we want to send the content type #endif bool is_inetd; //True if it expects to be executed by inetd array_ll cgi_paths; //Paths to cgi binaries bool virtual_host; //True if must check for virtual hosts bool exec_script; //Enable CGI if false bool tar_directory; //Sends directories compressed into tar-files char *ip; //IP addr with default value char *port; //port with default value char *indexes[MAXINDEXCOUNT];//List of pointers to index files int indexes_l; //Count of the list } weborf_configuration_t; #endif weborf-0.13.3/cachedir.h0000644000175100017510000000227512671354237011740 00000000000000/* Weborf Copyright (C) 2010 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #ifndef WEBORF_CACHEDIR_H #define WEBORF_CACHEDIR_H #include "types.h" bool cache_send_item(unsigned int uprefix,connection_t* connection_prop); int cache_get_item_fd(unsigned int uprefix,connection_t* connection_prop); int cache_get_item_fd_wr(unsigned int uprefix,connection_t *connection_prop); void cache_store_item(unsigned int uprefix,connection_t* connection_prop, char *content, size_t content_len); void cache_init(char *dir); int cache_clear(); bool cache_is_enabled(); #endifweborf-0.13.3/Credits0000644000175100017510000000064012671354237011337 00000000000000Angelo Puglisi, for fixing a warning and founding and fixing a buffer overflow Simone Veneziano, for improving performaces of a string function Prof. Giuseppe Pappalardo for the Synchronized queue Salvo Rinaldi for handling non pipelined connections and sending content length David Paleino and Enrico Zini for sponsoring the debian package and helping improving it David Paleino (once again) for the autotool stuff weborf-0.13.3/options.h.in0000644000175100017510000001230112671354240012257 00000000000000/* Weborf Copyright (C) 2007 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #include "config.h" #include //Needed because it defines the _POSIX_IPV6 #ifndef WEBORF_OPTIONS_H #define WEBORF_OPTIONS_H #define NAME PACKAGE //#define VERSION PACKAGE_VERSION #define SIGNATURE NAME "/" VERSION " (GNU/Linux)" //----------System #define ROOTUID 0 //Uid for superuser //----------Network #define MAXQ 40 //Queue for connect requests #define PORT "8080" //Default port #ifdef _POSIX_IPV6 //Enables ipv6 if supported //Delete the following line to use IPv4 instead. #define IPV6 #endif //-----------Threads #define MAXTHREAD 300 //Max threads #define INITIALTHREAD 12 //Thread started when free threads are low and when starting #define LOWTHREAD 3 //Minimum number of free threads, before starting new ones #define MAXFREETHREAD 12 //Maximum number of free threads, before starting to slowly close them #define THREADCONTROL 10 //Polling frequence in seconds //------------Server #define INDEX "index.html" //Default index file that weborf will search #define BASEDIR "/var/www" //Default basedir #define READ_TIMEOUT 5000 //Timeout before closing inactive keep-alive connections, in milliseconds //------------Buffers #define INBUFFER 1024 //Size for buffer with the HTTP request #define FILEBUF 4096 //Size of reads #define MAXSCRIPTOUT 512000 //Maximum size for a page generated by a script or internally #define HEADBUF 1024 //Buffer for headers #define PWDLIMIT 300 //Max size for password #define INDEXMAXLEN 30 #define NBUFFER 15 //Buffer to contain the string representation of an integer #define RBUFFER 128 //Buffer to contain a range #define BUFFERED_READER_SIZE 2048 #define DATEBUFFER 50 //Buffer for text date #define URI_LEN 256 #define PATH_LEN 1024 #define MIMETYPELEN 15 //Size of mimetype string //Number of index pages allowed to search #define MAXINDEXCOUNT 10 //-------------LIMITS #define POST_MAX_SIZE 2000000 //Maximum allowed size for POST data //-------------HTML #define HTMLHEAD "" NAME "
" #define HTMLFOOT "
" SIGNATURE "
" //#define HTMLHEAD "" NAME "" //#define HTMLFOOT "

Generated by " SIGNATURE "

" //-------------SCRIPTS #define SCRPT_TIMEOUT 30 //Timeout for the scripts, in seconds #define HIDE_CGI_ERRORS //Hides all the errors. //#define CGI_PHP "@cgibindir@/php5" //#define CGI_PY "@cgibindir@/weborf_py_wrapper" #define CGI_PHP "/usr/lib/cgi-bin/php5" #define CGI_PY "/usr/lib/cgi-bin/weborf_py_wrapper" //-------------COMPRESSING PAGES //#define __COMPRESSION //enables support for compressing pages, comment to disable #ifdef __COMPRESSION #define SIZE_COMPRESS_MIN 512 #define SIZE_COMPRESS_MAX 4000000000 #define GZIPNICE 4 //Nice value for gzip process #endif //The following header can be disabled to increase a little the speed //#define SEND_LAST_MODIFIED_HEADER #ifdef HAVE_LIBMAGIC #define SEND_MIMETYPES //Enables support to sending the mimetype to the client #endif //-------------RANGE #define __RANGE //Enables support to range (partial download) //-------------WEBDAV #define WEBDAV //Enables webdav support #ifdef WEBDAV #define MAXPROPCOUNT 40 //Number of supported properties #define HIDE_HIDDEN_FILES //Hides hidden files #endif //-------------Logging options //#define THREADDBG //#define SOCKETDBG //#define SENDINGDBG #define SERVERDBG #define REQUESTDBG #endif weborf-0.13.3/webdav.c0000644000175100017510000004000212671354240011421 00000000000000/* Weborf Copyright (C) 2009 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #include "options.h" #ifdef WEBDAV #include #include #include #include #include #include #include #include #include #include #include #include #include #include "webdav.h" #include "instance.h" #include "mime.h" #include "myio.h" #include "mystring.h" #include "utils.h" #include "cachedir.h" typedef struct { bool getetag :1; bool getcontentlength :1; bool resourcetype :1; bool getlastmodified :1; bool getcontenttype :1; bool deep :1; unsigned type :2; } t_dav_details; typedef union { unsigned int int_version; t_dav_details dav_details; } u_dav_details; extern weborf_configuration_t weborf_conf; extern pthread_key_t thread_key; //key for pthread_setspecific /** This function will create a copy of the source URI into the dest buffer %-escaping it. dest_size specifies the size of the dest buffer */ static inline void escape_uri(char *source, char *dest, int dest_size) { int i; //dest_size must have at least 4 bytes to contain %00\0 for (i=0; source[i]!=0 && dest_size>=4; i++) { //The or with the space changes it to lower case, so there is no need to compare with two ranges if (((source[i] | ' ')>='a' && (source[i] | ' ')<='z' ) || (source[i]>='-' && source[i]<='9')) { dest[0]=source[i]; dest[1]='\0'; dest++; dest_size--; } else { //Prints % followed by 2 digits hex code of the character sprintf(dest,"%%%02x",source[i]); dest+=3; dest_size-=3; } } } /** This function will use the result param prop to return the required props and the value of the Depth header Properties are in the form If something unexpected happens during the xml parsing, ERR_NODATA will be returned. RFC-1518 requires that the xml must be validated and an error MUST be returned to the client if the xml is not valid. This is not the case in this funcion. It will accept many forms of invalid xml. The original string post_param->data will be modified. */ static inline int get_props(connection_t* connection_prop,string_t* post_param,u_dav_details *props) { { //Determining if it is deep or not //props.deep=false; commented because redoundant char a[4]; //Buffer for field's value //Gets the value of content-length header bool r=get_param_value(connection_prop->http_param,"Depth", a,sizeof(a),strlen("Depth")); if (r) { props->dav_details.deep=(a[0]=='1'); } } char *sprops[MAXPROPCOUNT]; //List of pointers to properties if (post_param->len==0) {//No specific prop request, sending everything props->dav_details.getetag=true; props->dav_details.getcontentlength=true; props->dav_details.resourcetype=true; props->dav_details.getlastmodified=true; // props->getcontenttype=false; Commented because redoundant return 0; } //Locates the starting prop tag char*data=strstr(post_param->data,"data,""); if (data==NULL) data=strstr(post_param->data,"data,""); if (data==NULL) { return ERR_NODATA; } data+=6; //Eliminates the 1st useless tag { //Locates the ending prop tag char*end=strstr(data,""); if (end==NULL) end=strstr(data,""); if (end==NULL) { return ERR_NODATA; } end[0]=0; } int i; char *temp, *p_temp; for (i=0; (sprops[i]=strstr(data,"<"))!=NULL; i++,data=temp+1) { if (i==MAXPROPCOUNT-1) {//Reached limit sprops[i]=NULL; break; } sprops[i]+=1; //Removes the < stuff //Removes the /> temp=strstr(sprops[i],"/>"); if (temp==NULL) return ERR_NODATA; temp[0]=0; //Removing if there are parameters to the node p_temp=strstr(sprops[i]," "); if (p_temp!=NULL) { p_temp[0]=0; } } for (i=0; sprops[i]!=NULL; i++) { if (strstr(sprops[i],"getetag")!=NULL) { props->dav_details.getetag=true; } else if (strstr(sprops[i],"getcontentlength")!=NULL) { props->dav_details.getcontentlength=true; } else if (strstr(sprops[i],"resourcetype")!=NULL) { props->dav_details.resourcetype=true; } else if (strstr(sprops[i],"getlastmodified")!=NULL) { //Sends Date props->dav_details.getlastmodified=true; #ifdef SEND_MIMETYPES } else if(strstr(sprops[i],"getcontenttype")!=NULL) { //Sends MIME type props->dav_details.getcontenttype=true; #endif } } return 0; } /** This function sends a xml property to the client. It can be called only by funcions aware of this xml, because it sends only partial xml. If the file can't be opened in readonly mode, this function does nothing. */ static inline int printprops(connection_t *connection_prop,u_dav_details props,char* file,char*filename,bool parent) { int sock=connection_prop->sock; int p_len; struct stat stat_s; char buffer[URI_LEN]; char escaped_filename[URI_LEN]; char escaped_page[URI_LEN]; int file_fd=open(file,O_RDONLY); if (file_fd==-1) return 0; fstat(file_fd, &stat_s); escape_uri(filename,escaped_filename,URI_LEN); escape_uri(connection_prop->page,escaped_page,URI_LEN); write(sock,"\n",13); { //Sends href of the resource if (parent) { p_len=snprintf(buffer,URI_LEN,"%s",escaped_filename); } else { p_len=snprintf(buffer,URI_LEN,"%s%s",escaped_page,escaped_filename); } write (sock,buffer,p_len); } write(sock,"",20); //Writing properties char prop_buffer[URI_LEN]; if (props.dav_details.getetag) { snprintf(prop_buffer,URI_LEN,"%d",(unsigned int)stat_s.st_mtime); p_len=snprintf(buffer,URI_LEN,"%s\n",prop_buffer); write (sock,buffer,p_len); } if (props.dav_details.getcontentlength) { snprintf(prop_buffer,URI_LEN,"%lld",(long long)stat_s.st_size); p_len=snprintf(buffer,URI_LEN,"%s\n",prop_buffer); write (sock,buffer,p_len); } if (props.dav_details.resourcetype) {//Directory or normal file if (S_ISDIR(stat_s.st_mode)) { snprintf(prop_buffer,URI_LEN,""); } else { prop_buffer[0]=' '; prop_buffer[1]=0; } p_len=snprintf(buffer,URI_LEN,"%s\n",prop_buffer); write (sock,buffer,p_len); } if (props.dav_details.getlastmodified) { //Sends Date struct tm ts; localtime_r(&stat_s.st_mtime,&ts); strftime(prop_buffer,URI_LEN, "%a, %d %b %Y %H:%M:%S GMT", &ts); p_len=snprintf(buffer,URI_LEN,"%s\n",prop_buffer); write (sock,buffer,p_len); } #ifdef SEND_MIMETYPES if(props.dav_details.getcontenttype) { //Sends MIME type thread_prop_t *thread_prop = pthread_getspecific(thread_key); const char* t=mime_get_fd(thread_prop->mime_token,file_fd,&stat_s); p_len=snprintf(buffer,URI_LEN,"%s\n",t); write (sock,buffer,p_len); } #endif write(sock,"HTTP/1.1 200 OK",58); write(sock,"",13); close(file_fd); return 0; } /** This function serves a PROPFIND request. Can serve both depth and non-depth requests. This funcion works only if authentication is enabled. */ int propfind(connection_t* connection_prop,string_t *post_param) { //Forbids the method if no authentication is in use if (weborf_conf.authsock==NULL) { return ERR_FORBIDDEN; } int sock=connection_prop->sock; u_dav_details props= {0}; props.dav_details.type=1; //I need to avoid the struct to be fully 0 in each case int swap_fd=-1; //swap file descriptor const bool has_cache=cache_is_enabled(); { //This redirects directory without ending / to directory with the ending / int stat_r=stat(connection_prop->strfile, &connection_prop->strfile_stat); if (stat_r!=0) { return ERR_FILENOTFOUND; } if (S_ISDIR(connection_prop->strfile_stat.st_mode) && !endsWith(connection_prop->strfile,"/",connection_prop->strfile_len,1)) {//Putting the ending / and redirect char head[URI_LEN+12];//12 is the size for the location header snprintf(head,URI_LEN+12,"Location: %s/\r\n",connection_prop->page); send_http_header(301,0,head,true,-1,connection_prop); return 0; } } // End redirection int retval=get_props(connection_prop,post_param,&props);//splitting props if (retval!=0) { return retval; } //Sets keep alive to false (have no clue about how big is the generated xml) and sends a multistatus header code connection_prop->keep_alive=false; send_http_header(207,0,"Content-Type: text/xml; charset=\"utf-8\"\r\n",false,-1,connection_prop); //Check if exists in cache if (has_cache) { if ((swap_fd=cache_get_item_fd(props.int_version,connection_prop))!=-1) { //Sends the item stored in the cache struct stat sb; fstat(swap_fd,&sb); fd_copy(swap_fd,sock, sb.st_size); close(swap_fd); return 0; } else { //Prepares for storing the item in cache, will be sent afterwards //Get file descriptor of cache file int cache_fd=cache_get_item_fd_wr(props.int_version,connection_prop); //If we obtained that descriptor, replace socket with it if (cache_fd!=-1) { swap_fd=sock; //Stores the real socket connection_prop->sock=sock=cache_fd; } else swap_fd=-1; } } //Sends header of xml response write(sock,"",39); write(sock,"",30); //sends props about the requested file printprops(connection_prop,props,connection_prop->strfile,connection_prop->page,true); if (props.dav_details.deep) {//Send children files DIR *dp = opendir(connection_prop->strfile); //Open dir char file[URI_LEN]; struct dirent entry; struct dirent *result; int return_code; if (dp == NULL) {//Error, unable to send because header was already sent close(sock); return 0; } for (return_code=readdir_r(dp,&entry,&result); result!=NULL && return_code==0; return_code=readdir_r(dp,&entry,&result)) { //Cycles trough dir's elements #ifdef HIDE_HIDDEN_FILES if (entry.d_name[0]=='.') //doesn't list hidden files continue; #else //Avoids dir . and .. but not all hidden files if (entry.d_name[0]=='.' && (entry.d_name[1]==0 || (entry.d_name[1]=='.' && entry.d_name[2]==0))) continue; #endif snprintf(file,URI_LEN,"%s%s", connection_prop->strfile, entry.d_name); //Sends details about a file printprops(connection_prop,props,file,entry.d_name,false); } closedir(dp); } //ends multistatus write(sock,"",16); /* * If we were able to get a file descriptor for the cache file, and cache is enabled, * at this point the XMP has been saved into the cache but not sent to the client, * so now we read from cache and send to the client */ if (has_cache && swap_fd!=-1) { int cache_fd=sock; connection_prop->sock=sock=swap_fd; //Restore sock to its value off_t prev_pos=lseek(cache_fd,0,SEEK_CUR); //Get size of the file lseek(cache_fd,0,SEEK_SET); //Set cursor to the beginning fd_copy(cache_fd,sock,prev_pos); //Send the file close(cache_fd); } return 0; } /** This funcion should be named mkdir. But standards writers are weird people. */ int mkcol(connection_t* connection_prop) { if (weborf_conf.authsock==NULL) { return ERR_FORBIDDEN; } int res=mkdir(connection_prop->strfile,S_IRWXU | S_IRWXG | S_IRWXO); if (res==0) {//Directory created return OK_CREATED; } //Error switch (errno) { case EACCES: case EFAULT: case ELOOP: case ENAMETOOLONG: return ERR_FORBIDDEN; case ENOMEM: return ERR_SERVICE_UNAVAILABLE; case ENOENT: return ERR_CONFLICT; case EEXIST: case ENOTDIR: return ERR_NOT_ALLOWED; case ENOSPC: case EROFS: case EPERM: return ERR_INSUFFICIENT_STORAGE; } return ERR_SERVICE_UNAVAILABLE; //Make gcc happy } /** Webdav method copy. */ int copy_move(connection_t* connection_prop) { struct stat f_prop; //File's property bool check_exists=false; int retval=0; bool exists; char* host=malloc(3*PATH_LEN+12); if (host==NULL) { return ERR_NOMEM; } char* dest=host+PATH_LEN; char* overwrite=dest+PATH_LEN; char* destination=overwrite+2; //If the file has the same date, there is no need of sending it again bool host_b=get_param_value(connection_prop->http_param,"Host",host,PATH_LEN,strlen("Host")); bool dest_b=get_param_value(connection_prop->http_param,"Destination",dest,PATH_LEN,strlen("Destination")); bool overwrite_b=get_param_value(connection_prop->http_param,"Overwrite",overwrite,PATH_LEN,strlen("Overwrite")); if (host_b && dest_b == false) { //Some important header is missing retval=ERR_NOTHTTP; goto escape; } /*Sets if there is overwrite or not. ovewrite header is a boolean where F is false. */ if (overwrite_b) { check_exists=(overwrite[0]!='F'); } dest=strstr(dest,host); if (dest==NULL) {//Something is wrong here retval=ERR_NOTHTTP; goto escape; } dest+=strlen(host); //Local path for destination file snprintf(destination,PATH_LEN,"%s%s",connection_prop->basedir,dest); if (strcmp(connection_prop->strfile,destination)==0) {//same retval=ERR_FORBIDDEN; goto escape; } exists=file_exists(destination); //Checks if the file already exists if (check_exists && exists) { retval=ERR_PRECONDITION_FAILED; goto escape; } stat(connection_prop->strfile, &f_prop); if (S_ISDIR(f_prop.st_mode)) { //Directory if (connection_prop->method_id==COPY) { retval=dir_copy(connection_prop->strfile,destination); } else {//Move retval=dir_move(connection_prop->strfile,destination); } } else { //Normal file if (connection_prop->method_id==COPY) { retval=file_copy(connection_prop->strfile,destination); } else {//Move retval=file_move(connection_prop->strfile,destination); } } if (retval==0) { retval=exists?OK_NOCONTENT:OK_CREATED; } escape: free(host); return retval; } #endif weborf-0.13.3/listener.h0000644000175100017510000000203312671354240012005 00000000000000/* Weborf Copyright (C) 2007 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli @author Giuseppe Pappalardo */ #ifndef WEBORF_LISTENER_H #define WEBORF_LISTENER_H #define NOMEM 7 void init_threads(unsigned int count); void quit(); void print_queue_status(); void *t_shape(void *nulla); void set_authsocket(char *); void chn_thread_count(int val); void set_new_uid(int uid); #endif weborf-0.13.3/TODOlist0000644000175100017510000000032012671354237011376 00000000000000- Allow external script for modurl, must have the headers... - use openSSL (instead of using read and write, use wrappers so openssl or direct accesso to socket can be used) - Create a Doxyfile to use doxygenweborf-0.13.3/webdav.h0000644000175100017510000000167012671354240011436 00000000000000/* Weborf Copyright (C) 2009 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #ifndef WEBORF_WEBDAV_H #define WEBORF_WEBDAV_H #include "types.h" int propfind(connection_t* connection_prop,string_t *post_param); int mkcol(connection_t* connection_prop); int copy_move(connection_t* connection_prop); #endif weborf-0.13.3/listener.c0000644000175100017510000001662312671354240012012 00000000000000/* Weborf Copyright (C) 2007 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli @author Giuseppe Pappalardo @author Salvo Rinaldi */ #include "options.h" #include #include #include #include #include #include #include #include #include #include #include #include "listener.h" #include "instance.h" #include "queue.h" #include "utils.h" #include "mystring.h" #include "types.h" #include "cachedir.h" #include "configuration.h" #include "mynet.h" #define _GNU_SOURCE syn_queue_t queue; //Queue for opened sockets t_thread_info thread_info; extern weborf_configuration_t weborf_conf; pthread_attr_t t_attr; //thread's attributes pthread_key_t thread_key; //key for pthread_setspecific /** Sets t_attr to make detached threads and initializes pthread_keys */ static void init_thread_attr() { pthread_attr_init(&t_attr); pthread_attr_setdetachstate(&t_attr, PTHREAD_CREATE_DETACHED); pthread_key_create(&thread_key,NULL); } /** Starts threads Specify how many threads start. */ void init_threads(unsigned int count) { static long int id = 1; //t_free=MAXTHREAD; int effective=0,i; pthread_t t_id;//Unused var, thread's system id pthread_mutex_lock(&thread_info.mutex); //Check condition within the lock if (thread_info.count + count < MAXTHREAD) { //Start for (i = 1; i <= count; i++) if (pthread_create(&t_id, &t_attr, instance, (void *) (id++))==0) effective++; thread_info.count+=effective; // increases the count of started threads #ifdef THREADDBG syslog(LOG_DEBUG, "There are %d free threads", thread_info.free); #endif #ifdef SERVERDBG if (effective!=count) syslog(LOG_CRIT,"Unable to launch the required threads"); #endif } pthread_mutex_unlock(&thread_info.mutex); } /** This function inits the logger. Will use syslogd */ static void init_logger() { openlog("weborf", LOG_ODELAY, LOG_DAEMON); #ifdef SERVERDBG syslog(LOG_INFO, "Starting server..."); #endif } static void init_thread_info() { //Init thread_info pthread_mutex_init(&thread_info.mutex, NULL); thread_info.count=0; thread_info.free=0; } static void init_thread_shaping() { //Starts the monitoring thread, to close unused threads pthread_t t_id; //Unused var pthread_create(&t_id, NULL, t_shape, (void *) NULL); } /** * Set quit action on SIGTERM and SIGINT * and prints the internal status on SIGUSR1 * */ static void init_signals() { //Handle SIGINT and SIGTERM signal(SIGINT, quit); signal(SIGTERM, quit); //Prints queue status with this signal signal(SIGUSR1, print_queue_status); } int main(int argc, char *argv[]) { int s, s1; //Socket descriptors init_logger(); init_thread_info(); configuration_load(argc,argv); if (weborf_conf.is_inetd) inetd(); print_start_disclaimer(argc,argv); s = net_create_server_socket(); net_bind_and_listen(s); set_new_uid(weborf_conf.uid); //init the queue for opened sockets if (q_init(&queue, MAXTHREAD + 1) != 0) exit(NOMEM); //Starts the 1st group of threads init_thread_attr(); init_threads(INITIALTHREAD); init_thread_shaping(); init_signals(); //Infinite cycle, accept connections while (1) { s1 = accept(s, NULL,NULL); if (s1 >= 0 && q_put(&queue, s1)!=0) { //Adds s1 to the queue #ifdef REQUESTDBG syslog(LOG_ERR,"Not enough resources, dropping connection..."); #endif close(s1); } //Start new thread if needed if (thread_info.free <= LOWTHREAD && thread_info.free MAXFREETHREAD) { //Too much free threads, terminates one of them //Write the termination order to the queue, the thread who will read it, will terminate q_put(&queue,-1); } //pthread_mutex_unlock(&thread_info.mutex); } return NULL; //make gcc happy } /** Will print the internal status of the queue. This function is triggered by SIGUSR1 signal. */ void print_queue_status() { //Lock because the values are read many times and it's needed that they have the same value all the times if ( pthread_mutex_trylock(&queue.mutex)==0) { printf("Queue is unlocked\n"); pthread_mutex_unlock(&queue.mutex); } else { printf("Queue is locked\n"); } if ( pthread_mutex_trylock(&thread_info.mutex)==0) { printf("thread_info is unlocked\n"); pthread_mutex_unlock(&thread_info.mutex); } else { printf("thread_info is locked\n"); } pthread_mutex_lock(&thread_info.mutex); printf("=== Queue ===\ncount: %d\t" "size: %d\n" "head: %d\t" "tail: %d\n" "wait_data: %d\t" "wait_space: %d\n" "=== Threads ===\n" "Maximum: %d\n" "Started: %d\n" "Free: %d\n" "Busy: %d\n", queue.num,queue.size, queue.head,queue.tail, queue.n_wait_dt,queue.n_wait_sp, MAXTHREAD,thread_info.count, thread_info.free,thread_info.count-thread_info.free ); pthread_mutex_unlock(&thread_info.mutex); } weborf-0.13.3/cachedir.c0000644000175100017510000001654012671354237011733 00000000000000/* Weborf Copyright (C) 2010 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #include "options.h" #include #include #include #include #include #include #include #include #include #include "cachedir.h" #include "utils.h" #include "types.h" #include "instance.h" char *cachedir=NULL; /** Generates the filename for the cached entity and stores it in the buffer */ static inline void cached_filename(unsigned int uprefix,connection_t *connection_prop, char *buffer) { snprintf(buffer,PATH_LEN,"%s/%u-%llu-%llu-%ld",cachedir,uprefix,(unsigned long long int)connection_prop->strfile_stat.st_ino,(unsigned long long int)connection_prop->strfile_stat.st_dev,connection_prop->strfile_stat.st_mtime); } /** Returns true if the caching is enabled and false otherwise */ bool cache_is_enabled() { if (cachedir==NULL) return false; return true; } /** Sends a cached item if present and returns true. Returns false on cache miss. */ bool cache_send_item(unsigned int uprefix,connection_t* connection_prop) {//Try to send the cached file instead int cachedfd=cache_get_item_fd(uprefix,connection_prop); if (cachedfd==-1) return false; int oldfd=connection_prop->strfile_fd; connection_prop->strfile_fd=cachedfd; /* replaces the stat of the directory with the stat of the cached file it is safe here since get_cached_item has already been executed */ fstat(connection_prop->strfile_fd, &connection_prop->strfile_stat); write_file(connection_prop); //Restore file descriptor so it can be closed later connection_prop->strfile_fd=oldfd; //Closes the cache file descriptor close(cachedfd); return true; } /** This function returns the file descriptor to the file containing the cached item. If a cache miss occurs -1 will be returned If cache is not in use (cache_init was not called) it will always return -1 uprefix is an integer that must be unique for each call of get_cached_dir. Its purpose is to distinguish between calls that will eventually generate an HTML file and calls that will generate XML or other data. So the directory would be the same but the generated content is different. Acquires a shared lock on the file, so if the file is already opened in write mode the lock will fail and the function will return the same result of a cache miss. */ int cache_get_item_fd(unsigned int uprefix,connection_t* connection_prop) { if (!cachedir) return -1; char fname[PATH_LEN]; //Get the filename cached_filename(uprefix,connection_prop,fname); int fd=open(fname,O_RDONLY); if (fd==-1) return -1; //Cache miss //Acquire lock on the file and return the file descriptor if (flock(fd,LOCK_SH|LOCK_NB)==0) return fd; //Lock could not be acquired close(fd); return -1; } /** Same as cache_get_item_fd but here the file is created and opened for reading and writing, and will be created if it doesn't exist An exclusive lock will be acquired over the file, since it is being opened for writing too. */ int cache_get_item_fd_wr(unsigned int uprefix,connection_t *connection_prop) { if (!cachedir) return -1; char fname[PATH_LEN]; //Get the filename cached_filename(uprefix,connection_prop,fname); int fd = open(fname,O_RDWR| O_CREAT,S_IRUSR|S_IWUSR); //Acquire the exclusive lock in a non-blocking way if (flock(fd,LOCK_EX|LOCK_NB)==0) { return fd; } close(fd); return -1; } /** Stores the content of the buffer "content" in cache, for the size specified by content_len The cache file will have an exclusive lock to prevent multiple threads accessing the same file in write mode. Lock is acquired in a non-blocking way, so if the file is already locked the method will just return without writing anything on the file. This behavior is wanted because it is assumed that the lock is held by another thread writing the same content on the file, waiting for the lock to be released would lead to override the content of the file with the same content. */ void cache_store_item(unsigned int uprefix,connection_t* connection_prop, char *content, size_t content_len) { if (!cachedir) return; char fname[PATH_LEN]; cached_filename(uprefix,connection_prop,fname); int fd=open(fname,O_WRONLY| O_CREAT,S_IRUSR|S_IWUSR); if (fd==-1) return; //Just do nothing in case of error //Try to acquire lock in a non-blocking way, and exit if another thread has that lock if (flock(fd,LOCK_EX|LOCK_NB)!=0) { close(fd); return; } write(fd,content,content_len); close(fd); return; } /** This function initializes a cache directory. If the dir is not a directory or it is impossible to stat weborf will terminate. If it is impossible to delete and create files in it, weborf will just log a warning. */ void cache_init(char* dir) { cachedir=dir; { //Check if it exists struct stat stat_buf; if (stat(dir, &stat_buf)!=0) { write(2,"Unable to stat cache directory\n",31); #ifdef SERVERDBG syslog(LOG_ERR,"Unable to stat cache directory"); #endif exit(10); } //Check it is a directory if (!S_ISDIR(stat_buf.st_mode)) { write(2,"--cache parameter must be a directory\n",38); #ifdef SERVERDBG syslog(LOG_ERR,"--cache parameter must be a directory"); #endif exit(10); } } //check we have permissions if (access(dir,W_OK|R_OK)!=0) { write(2,"no read or write permissions on cache dir\n",42); #ifdef SERVERDBG syslog(LOG_ERR,"no read or write permissions on cache dir"); #endif exit(10); } } /** Removes all the files contained in the cache directory. The cache must have been already initialized for this to work Returns 0 on success, -1 otherwise */ int cache_clear() { if (!cachedir) return -1; //Empty directory DIR *dp = opendir(cachedir); //Open dir struct dirent entry; struct dirent *result; int return_code; int retval=0; if (dp == NULL) { return 1; } char*file=malloc(PATH_LEN);//Buffer for path if (file==NULL) return -1; //Cycles trough dir's elements for (return_code=readdir_r(dp,&entry,&result); result!=NULL && return_code==0; return_code=readdir_r(dp,&entry,&result)) { //Cycles trough dir's elements //skips dir . and .. but not all hidden files if (entry.d_name[0]=='.' && (entry.d_name[1]==0 || (entry.d_name[1]=='.' && entry.d_name[2]==0))) continue; snprintf(file,PATH_LEN,"%s/%s",cachedir, entry.d_name); if (unlink(file)!=0) retval=-1; } closedir(dp); free(file); return retval; } weborf-0.13.3/myio.c0000644000175100017510000001610412671354240011134 00000000000000/* Weborf Copyright (C) 2010 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #include "options.h" #include #include #include #include #include #include #include #include #include #include "instance.h" #include "types.h" #include "myio.h" /** Copies count bytes from the file descriptor "from" to the file descriptor "to". It is possible to use lseek on the descriptors before calling this function. Will not close any descriptor */ int fd_copy(int from, int to, off_t count) { char *buf=malloc(FILEBUF);//Buffer to read from file int reads,wrote; if (buf==NULL) { #ifdef SERVERDBG syslog(LOG_CRIT,"Not enough memory to allocate buffers"); #endif return ERR_NOMEM;//If no memory is available } //Sends file while (count>0 && (reads=read(from, buf, FILEBUF0) { count-=reads; wrote=write(to,buf,reads); if (wrote!=reads) { //Error writing to the descriptor #ifdef SOCKETDBG syslog(LOG_ERR,"Unable to send %s: error writing to the file descriptor",connection_prop->strfile); #endif break; } } free(buf); return 0; } /** Returns true if the specified file exists */ bool file_exists(char *file) { int fp = open(file, O_RDONLY); if (fp >= 0) { // exists close(fp); return true; } return false; } /** Deletes a directory and its content. This function is something like rm -rf dir is the directory to delete file is a buffer. Allocated outside because it will be reused by every recoursive call. Its size is file_s Returns 0 on success */ int dir_remove(char * dir) { /* If it is a file, removes it Otherwise list the directory's content, then do a recoursive call and do rmdir on self */ if (unlink(dir)==0) return 0; DIR *dp = opendir(dir); //Open dir struct dirent entry; struct dirent *result; int return_code; if (dp == NULL) { return 1; } char*file=malloc(PATH_LEN);//Buffer for path if (file==NULL) return ERR_NOMEM; //Cycles trough dir's elements for (return_code=readdir_r(dp,&entry,&result); result!=NULL && return_code==0; return_code=readdir_r(dp,&entry,&result)) { //Cycles trough dir's elements //skips dir . and .. but not all hidden files if (entry.d_name[0]=='.' && (entry.d_name[1]==0 || (entry.d_name[1]=='.' && entry.d_name[2]==0))) continue; snprintf(file,PATH_LEN,"%s/%s",dir, entry.d_name); dir_remove(file); } closedir(dp); free(file); return rmdir(dir); } #ifdef WEBDAV /** Moves a file. If it is on the same partition it will create a new link and delete the previous link. Otherwise it will create a new copy and delete the old one. Returns 0 on success. */ int file_move(char* source, char* dest) { int retval=rename(source,dest); //Not the same device, doing a normal copy if (retval==-1 && errno==EXDEV) { retval=file_copy(source,dest); if (retval==0) unlink(source); } return retval; } /** Copies a file into another file Returns 0 on success */ int file_copy(char* source, char* dest) { int fd_from=-1; int fd_to=-1; ssize_t read_,write_; int retval=0; char *buf=NULL; //Open destination file if ((fd_to=open(dest,O_WRONLY|O_CREAT,S_IRUSR|S_IWUSR))<0) { retval=ERR_FORBIDDEN; goto escape; } if ((fd_from=open(source,O_RDONLY | O_LARGEFILE))<0) { retval = ERR_FILENOTFOUND; goto escape; } buf=malloc(FILEBUF);//Buffer to read from file if (buf==NULL) { retval= ERR_NOMEM; goto escape; } while ((read_=read(fd_from,buf,FILEBUF))>0) { write_=write(fd_to,buf,read_); if (write_!=read_) { retval= ERR_BRKPIPE; break; } } escape: free(buf); if (fd_from>=0) close(fd_from); if (fd_to>=0) close(fd_to); return retval; } /**This function copies a directory. The destination directory will be created and will be filled with the same content of the source directory Returns 0 on success */ int dir_copy (char* source, char* dest) { return dir_move_copy(source,dest,COPY); } /**This function moves a directory. The destination directory will be created and will be filled with the same content of the source directory. Then, the source directory will be deleted. Returns 0 on success */ int dir_move(char* source, char* dest) { int retval; if ((retval=rename(source,dest))==0) { return 0; } else if (retval==-1 && errno==EXDEV) { return dir_move_copy(source,dest,MOVE); } else { return 1; } } /** Moves or copies a directory, depending on the method used Returns 0 on success */ int dir_move_copy (char* source, char* dest,int method) { struct stat f_prop; //File's property int retval=0; if (mkdir(dest,S_IRWXU | S_IRWXG | S_IRWXO)!=0) {//Attemps to create destination directory return ERR_FORBIDDEN; } DIR *dp = opendir(source); //Open dir struct dirent entry; struct dirent *result; int return_code; if (dp == NULL) { return ERR_FILENOTFOUND; } char*src_file=malloc(PATH_LEN*2);//Buffer for path if (src_file==NULL) return ERR_NOMEM; char* dest_file=src_file+PATH_LEN; //Cycles trough dir's elements for (return_code=readdir_r(dp,&entry,&result); result!=NULL && return_code==0; return_code=readdir_r(dp,&entry,&result)) { //skips dir . and .. but not all hidden files if (entry.d_name[0]=='.' && (entry.d_name[1]==0 || (entry.d_name[1]=='.' && entry.d_name[2]==0))) continue; snprintf(src_file,PATH_LEN,"%s/%s",source, entry.d_name); snprintf(dest_file,PATH_LEN,"%s/%s",dest, entry.d_name); stat(src_file, &f_prop); if (S_ISDIR(f_prop.st_mode)) {//Directory retval=dir_move_copy(src_file,dest_file,method); } else {//File if (method==MOVE) { retval=file_move(src_file,dest_file); } else { retval=file_copy(src_file,dest_file); } } if (retval!=0) goto escape; } escape: closedir(dp); free(src_file); //Removing directory after that its content has been moved if (retval==0 && method==MOVE) { return rmdir(source); } return retval; } #endif weborf-0.13.3/configuration.h0000644000175100017510000000156212671354237013043 00000000000000/* Weborf Copyright (C) 2010 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ #ifndef WEBORF_CONFIGURATION_H #define WEBORF_CONFIGURATION_H #include "types.h" #include "options.h" void configuration_load(int argc, char *argv[]); #endifweborf-0.13.3/aclocal.m40000644000175100017510000012542612672253112011660 00000000000000# generated automatically by aclocal 1.15 -*- Autoconf -*- # Copyright (C) 1996-2014 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])]) m4_ifndef([AC_AUTOCONF_VERSION], [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],, [m4_warning([this file was generated for autoconf 2.69. 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We just wanted to have am__tar # and am__untar set. test -n "${am_cv_prog_tar_$1}" && break # tar/untar a dummy directory, and stop if the command works. rm -rf conftest.dir mkdir conftest.dir echo GrepMe > conftest.dir/file AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) rm -rf conftest.dir if test -s conftest.tar; then AM_RUN_LOG([$am__untar /dev/null 2>&1 && break fi done rm -rf conftest.dir AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) AC_MSG_RESULT([$am_cv_prog_tar_$1])]) AC_SUBST([am__tar]) AC_SUBST([am__untar]) ]) # _AM_PROG_TAR weborf-0.13.3/examples/0000755000175100017510000000000012671354240011707 500000000000000weborf-0.13.3/examples/weborf_auth.c0000644000175100017510000000367012671354240014306 00000000000000/* Weborf Copyright (C) 2009 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ //Example of authentication program #include #include #include #include #include #include #include #define SOCK_PATH "/tmp/weborf_auth.socket" #define SIZE 1024 int main(void) { int s,s2, t, len; struct sockaddr_un local, remote; char str[SIZE]; if ((s = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) { perror("socket"); exit(1); } local.sun_family = AF_UNIX; strcpy(local.sun_path, SOCK_PATH); unlink(SOCK_PATH); len = strlen(local.sun_path) + sizeof(local.sun_family); if (bind(s, (struct sockaddr *)&local, len) == -1) { perror("bind"); exit(1); } if (listen(s, 5) == -1) { perror("listen"); exit(1); } for (;;) { t = sizeof(remote); if ((s2 = accept(s, (struct sockaddr *)&remote, &t)) == -1) { perror("accept"); exit(1); } t = recv(s2, str, SIZE, 0); str[t] = '\0'; if (str[1]=='f' && str[2]=='i' && str[3]=='l' && str[4]=='m') { if (strstr(str,"::ffff:10.0.")==NULL) { send(s2,"c", 1,0); } } close(s2); } return 0; } weborf-0.13.3/examples/weborf_auth_dav.c0000644000175100017510000000555512671354240015144 00000000000000/* Weborf Copyright (C) 2010 Salvo "LtWorf" Tomaselli Weborf is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . @author Salvo "LtWorf" Tomaselli */ /*Example of authentication program This program will allow all GET and POST methods, will allow PROPFIND MKCOL and PUT only from 10.0.* And will deny the rest. For avoiding trouble, also the OPTIONS method is always enabled */ #include #include #include #include #include #include #include #include #define SOCK_PATH "/tmp/weborf_auth.socket" #define SIZE 1024 int main(void) { int s,s2, t, len; struct sockaddr_un local, remote; char str[SIZE]; //Removes the socket if already exists unlink(SOCK_PATH); if ((s = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) { perror("socket"); exit(1); } local.sun_family = AF_UNIX; strcpy(local.sun_path, SOCK_PATH); unlink(SOCK_PATH); len = strlen(local.sun_path) + sizeof(local.sun_family); if (bind(s, (struct sockaddr *)&local, len) == -1) { perror("bind"); exit(1); } if (listen(s, 5) == -1) { perror("listen"); exit(1); } //Cycle to accept connections for (;;) { t = sizeof(remote); if ((s2 = accept(s, (struct sockaddr *)&remote, &t)) == -1) { perror("accept"); exit(1); } t = recv(s2, str, SIZE, 0); str[t] = '\0'; //Parse string to get the things we need char *uri = strtok(str,"\r\n"); char *ip = strtok(NULL,"\r\n"); char *method = strtok(NULL,"\r\n"); //Allow GET, POST, and OPTIONS if (strncmp(method,"GET",3)==0 || strncmp(method,"POST",4)==0 || strncmp(method,"OPTIONS",7)) { close(s2); //Closing the connection without sending anything will result in weborf accept the request } //Allow PROPFIND MKCOL PUT from local network else if (strncmp(method,"PROPFIND",8)==0 || strncmp(method,"PUT",3)==0 || strncmp(method,"MKCOL",5)==0) { if (strncmp(ip,"::ffff:10.0.",12)!=0) send(s2,"c",1,0); close(s2); } //Disallow the rest (DELETE, MOVE, COPY) else { send(s2,"c", 1,0); close(s2); } } return 0; } weborf-0.13.3/examples/index.py0000644000175100017510000000123112671354240013305 00000000000000#!/usr/bin/python # -*- coding: utf-8 -*- ''' This is an example of index file. It adds a "." to a session variable on every refresh, shows the informations and sets a cookie. ''' import os import sys from cgi_weborf import * #imports module cgi cgi.session_start() cgi.setcookie("id","33") cgi.finalize_headers() #will output the final \r\n\r\n and the content-type header if 'nome' in cgi.SESSION: cgi.SESSION['nome']+="." else: cgi.SESSION['nome']="." sys.stdout.write( "") sys.stdout.write( "") sys.stdout.write( "

example

") cgi.pyinfo() sys.stdout.write( "") sys.stdout.write( "") cgi.savesession() weborf-0.13.3/examples/auth.py0000644000175100017510000000241712671354240013146 00000000000000#!/usr/bin/python # -*- coding: utf-8 -*- # Auth script # Copyright (C) 2008 Salvo "LtWorf" Tomaselli # # Relation is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # # author Salvo "LtWorf" Tomaselli # This is an example authentication script. You can modify it to make it fit your needs import socket,os s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) try: os.remove("/tmp/weborf_auth.socket") except OSError: pass s.bind("/tmp/weborf_auth.socket") s.listen(1) while 1: conn, addr = s.accept() data = conn.recv(4096).split('\r\n') print data if data[0].startswith('/film'): if not data[1].startswith('::ffff:10.0.'): conn.send(' ') conn.close() weborf-0.13.3/examples/xinetd.conf0000644000175100017510000000023612671354240013772 00000000000000service www { socket_type = stream wait = no user = www-data instances = 100 server = /usr/bin/weborf server_args = -T port = 80 cps = 100 4 flags = IPv6 } weborf-0.13.3/COPYING0000644000175100017510000010451312671354237011056 00000000000000 GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. 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You may convey a covered work in object code form under the terms of sections 4 and 5, provided that you also convey the machine-readable Corresponding Source under the terms of this License, in one of these ways: a) Convey the object code in, or embodied in, a physical product (including a physical distribution medium), accompanied by the Corresponding Source fixed on a durable physical medium customarily used for software interchange. b) Convey the object code in, or embodied in, a physical product (including a physical distribution medium), accompanied by a written offer, valid for at least three years and valid for as long as you offer spare parts or customer support for that product model, to give anyone who possesses the object code either (1) a copy of the Corresponding Source for all the software in the product that is covered by this License, on a durable physical medium customarily used for software interchange, for a price no more than your reasonable cost of physically performing this conveying of source, or (2) access to copy the Corresponding Source from a network server at no charge. c) Convey individual copies of the object code with a copy of the written offer to provide the Corresponding Source. This alternative is allowed only occasionally and noncommercially, and only if you received the object code with such an offer, in accord with subsection 6b. d) Convey the object code by offering access from a designated place (gratis or for a charge), and offer equivalent access to the Corresponding Source in the same way through the same place at no further charge. You need not require recipients to copy the Corresponding Source along with the object code. If the place to copy the object code is a network server, the Corresponding Source may be on a different server (operated by you or a third party) that supports equivalent copying facilities, provided you maintain clear directions next to the object code saying where to find the Corresponding Source. Regardless of what server hosts the Corresponding Source, you remain obligated to ensure that it is available for as long as needed to satisfy these requirements. e) Convey the object code using peer-to-peer transmission, provided you inform other peers where the object code and Corresponding Source of the work are being offered to the general public at no charge under subsection 6d. A separable portion of the object code, whose source code is excluded from the Corresponding Source as a System Library, need not be included in conveying the object code work. A "User Product" is either (1) a "consumer product", which means any tangible personal property which is normally used for personal, family, or household purposes, or (2) anything designed or sold for incorporation into a dwelling. In determining whether a product is a consumer product, doubtful cases shall be resolved in favor of coverage. 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If you convey an object code work under this section in, or with, or specifically for use in, a User Product, and the conveying occurs as part of a transaction in which the right of possession and use of the User Product is transferred to the recipient in perpetuity or for a fixed term (regardless of how the transaction is characterized), the Corresponding Source conveyed under this section must be accompanied by the Installation Information. But this requirement does not apply if neither you nor any third party retains the ability to install modified object code on the User Product (for example, the work has been installed in ROM). The requirement to provide Installation Information does not include a requirement to continue to provide support service, warranty, or updates for a work that has been modified or installed by the recipient, or for the User Product in which it has been modified or installed. Access to a network may be denied when the modification itself materially and adversely affects the operation of the network or violates the rules and protocols for communication across the network. Corresponding Source conveyed, and Installation Information provided, in accord with this section must be in a format that is publicly documented (and with an implementation available to the public in source code form), and must require no special password or key for unpacking, reading or copying. 7. Additional Terms. "Additional permissions" are terms that supplement the terms of this License by making exceptions from one or more of its conditions. Additional permissions that are applicable to the entire Program shall be treated as though they were included in this License, to the extent that they are valid under applicable law. If additional permissions apply only to part of the Program, that part may be used separately under those permissions, but the entire Program remains governed by this License without regard to the additional permissions. When you convey a copy of a covered work, you may at your option remove any additional permissions from that copy, or from any part of it. (Additional permissions may be written to require their own removal in certain cases when you modify the work.) You may place additional permissions on material, added by you to a covered work, for which you have or can give appropriate copyright permission. Notwithstanding any other provision of this License, for material you add to a covered work, you may (if authorized by the copyright holders of that material) supplement the terms of this License with terms: a) Disclaiming warranty or limiting liability differently from the terms of sections 15 and 16 of this License; or b) Requiring preservation of specified reasonable legal notices or author attributions in that material or in the Appropriate Legal Notices displayed by works containing it; or c) Prohibiting misrepresentation of the origin of that material, or requiring that modified versions of such material be marked in reasonable ways as different from the original version; or d) Limiting the use for publicity purposes of names of licensors or authors of the material; or e) Declining to grant rights under trademark law for use of some trade names, trademarks, or service marks; or f) Requiring indemnification of licensors and authors of that material by anyone who conveys the material (or modified versions of it) with contractual assumptions of liability to the recipient, for any liability that these contractual assumptions directly impose on those licensors and authors. All other non-permissive additional terms are considered "further restrictions" within the meaning of section 10. If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term. If a license document contains a further restriction but permits relicensing or conveying under this License, you may add to a covered work material governed by the terms of that license document, provided that the further restriction does not survive such relicensing or conveying. If you add terms to a covered work in accord with this section, you must place, in the relevant source files, a statement of the additional terms that apply to those files, or a notice indicating where to find the applicable terms. Additional terms, permissive or non-permissive, may be stated in the form of a separately written license, or stated as exceptions; the above requirements apply either way. 8. Termination. You may not propagate or modify a covered work except as expressly provided under this License. Any attempt otherwise to propagate or modify it is void, and will automatically terminate your rights under this License (including any patent licenses granted under the third paragraph of section 11). However, if you cease all violation of this License, then your license from a particular copyright holder is reinstated (a) provisionally, unless and until the copyright holder explicitly and finally terminates your license, and (b) permanently, if the copyright holder fails to notify you of the violation by some reasonable means prior to 60 days after the cessation. Moreover, your license from a particular copyright holder is reinstated permanently if the copyright holder notifies you of the violation by some reasonable means, this is the first time you have received notice of violation of this License (for any work) from that copyright holder, and you cure the violation prior to 30 days after your receipt of the notice. Termination of your rights under this section does not terminate the licenses of parties who have received copies or rights from you under this License. If your rights have been terminated and not permanently reinstated, you do not qualify to receive new licenses for the same material under section 10. 9. Acceptance Not Required for Having Copies. You are not required to accept this License in order to receive or run a copy of the Program. Ancillary propagation of a covered work occurring solely as a consequence of using peer-to-peer transmission to receive a copy likewise does not require acceptance. However, nothing other than this License grants you permission to propagate or modify any covered work. These actions infringe copyright if you do not accept this License. Therefore, by modifying or propagating a covered work, you indicate your acceptance of this License to do so. 10. Automatic Licensing of Downstream Recipients. Each time you convey a covered work, the recipient automatically receives a license from the original licensors, to run, modify and propagate that work, subject to this License. You are not responsible for enforcing compliance by third parties with this License. An "entity transaction" is a transaction transferring control of an organization, or substantially all assets of one, or subdividing an organization, or merging organizations. If propagation of a covered work results from an entity transaction, each party to that transaction who receives a copy of the work also receives whatever licenses to the work the party's predecessor in interest had or could give under the previous paragraph, plus a right to possession of the Corresponding Source of the work from the predecessor in interest, if the predecessor has it or can get it with reasonable efforts. You may not impose any further restrictions on the exercise of the rights granted or affirmed under this License. For example, you may not impose a license fee, royalty, or other charge for exercise of rights granted under this License, and you may not initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging that any patent claim is infringed by making, using, selling, offering for sale, or importing the Program or any portion of it. 11. Patents. A "contributor" is a copyright holder who authorizes use under this License of the Program or a work on which the Program is based. The work thus licensed is called the contributor's "contributor version". A contributor's "essential patent claims" are all patent claims owned or controlled by the contributor, whether already acquired or hereafter acquired, that would be infringed by some manner, permitted by this License, of making, using, or selling its contributor version, but do not include claims that would be infringed only as a consequence of further modification of the contributor version. For purposes of this definition, "control" includes the right to grant patent sublicenses in a manner consistent with the requirements of this License. Each contributor grants you a non-exclusive, worldwide, royalty-free patent license under the contributor's essential patent claims, to make, use, sell, offer for sale, import and otherwise run, modify and propagate the contents of its contributor version. In the following three paragraphs, a "patent license" is any express agreement or commitment, however denominated, not to enforce a patent (such as an express permission to practice a patent or covenant not to sue for patent infringement). To "grant" such a patent license to a party means to make such an agreement or commitment not to enforce a patent against the party. If you convey a covered work, knowingly relying on a patent license, and the Corresponding Source of the work is not available for anyone to copy, free of charge and under the terms of this License, through a publicly available network server or other readily accessible means, then you must either (1) cause the Corresponding Source to be so available, or (2) arrange to deprive yourself of the benefit of the patent license for this particular work, or (3) arrange, in a manner consistent with the requirements of this License, to extend the patent license to downstream recipients. "Knowingly relying" means you have actual knowledge that, but for the patent license, your conveying the covered work in a country, or your recipient's use of the covered work in a country, would infringe one or more identifiable patents in that country that you have reason to believe are valid. If, pursuant to or in connection with a single transaction or arrangement, you convey, or propagate by procuring conveyance of, a covered work, and grant a patent license to some of the parties receiving the covered work authorizing them to use, propagate, modify or convey a specific copy of the covered work, then the patent license you grant is automatically extended to all recipients of the covered work and works based on it. A patent license is "discriminatory" if it does not include within the scope of its coverage, prohibits the exercise of, or is conditioned on the non-exercise of one or more of the rights that are specifically granted under this License. You may not convey a covered work if you are a party to an arrangement with a third party that is in the business of distributing software, under which you make payment to the third party based on the extent of your activity of conveying the work, and under which the third party grants, to any of the parties who would receive the covered work from you, a discriminatory patent license (a) in connection with copies of the covered work conveyed by you (or copies made from those copies), or (b) primarily for and in connection with specific products or compilations that contain the covered work, unless you entered into that arrangement, or that patent license was granted, prior to 28 March 2007. Nothing in this License shall be construed as excluding or limiting any implied license or other defenses to infringement that may otherwise be available to you under applicable patent law. 12. No Surrender of Others' Freedom. If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not convey it at all. For example, if you agree to terms that obligate you to collect a royalty for further conveying from those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to refrain entirely from conveying the Program. 13. Use with the GNU Affero General Public License. Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU Affero General Public License into a single combined work, and to convey the resulting work. The terms of this License will continue to apply to the part which is the covered work, but the special requirements of the GNU Affero General Public License, section 13, concerning interaction through a network will apply to the combination as such. 14. Revised Versions of this License. The Free Software Foundation may publish revised and/or new versions of the GNU General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies that a certain numbered version of the GNU General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of the GNU General Public License, you may choose any version ever published by the Free Software Foundation. If the Program specifies that a proxy can decide which future versions of the GNU General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program. Later license versions may give you additional or different permissions. However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version. 15. Disclaimer of Warranty. THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 16. Limitation of Liability. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 17. Interpretation of Sections 15 and 16. If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . Also add information on how to contact you by electronic and paper mail. If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode: Copyright (C) This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an "about box". You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see . The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read .