linkify-0.9.0/.cargo_vcs_info.json0000644000000001360000000000100125070ustar { "git": { "sha1": "3be62ab5cb024d37455044cf9f1851f76fa72cae" }, "path_in_vcs": "" }linkify-0.9.0/.gitignore000064400000000000000000000001260072674642500133160ustar 00000000000000# cargo target Cargo.lock # MacOS .DS_Store # IDEA .idea/ *.iml # VS Code .vscode/ linkify-0.9.0/CHANGELOG.md000064400000000000000000000100250072674642500131360ustar 00000000000000# Changelog All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/). This project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html), with the exception that 0.x versions can break between minor versions. ## [0.9.0] - 2022-07-11 ### Changed - More strict parsing of hostname (authority) part of URLs. Applies to emails, plain domains URLs (e.g. `example.com/foo`) and URLs with schemes where a host is expected (e.g. `https`). This fixes a few problems that have been reported over time, namely: - `https://www.example..com` is no longer parsed as an URL (#41) - `foo@v1.1.1` is no longer parsed as an email address (#29) - `https://*.example.org` is no longer parsed as an URL (#38) It's a tricky change and hopefully this solves some problems while not introducing too many new ones. If anything unexpectedly changed for you, please let us know! ## [0.8.1] - 2022-04-14 ### Changed - Skip parsing very short strings for URLs as a performance optimization ## [0.8.0] - 2021-11-26 ### Added - New option `url_must_have_scheme` on `LinkFinder` that can be set to `false` to allow URLs without scheme/protocol such as `example.com`. Note that there is no allowlist for top-level domains, if you want that you will have to implement it yourself. ### Changed - Bump MSRV (minimum supported Rust version) to 1.46 ## [0.7.0] - 2021-05-18 ### Changed - URLs that have a quote character like `'` or `"` before them will stop when that quote character is encountered, e.g. in `"https://example.org/","`, the URL will not include any quotes. Before, it would run until the end because the quotes after the slash were an even number. (#20) - Bump MSRV (minimum supported Rust version) to 1.41 ## [0.6.0] - 2021-04-09 ### Changed - Stop URLs when encountering `|`. Consistent with RFC and will hopefully not cause problems with real URLs. ## [0.5.0] - 2021-02-13 ### Changed - Treat `*` as a delimiter like `.` or `,`, which means they can be part of an URL but not at the end. ## [0.4.0] - 2019-08-05 ### Changed - Stop URLs when encountering ". This is consistent with RFC 3986, and it seems unlikely that a user would have an unescaped " in an URL anyway, as browsers escape it when copying an URL with it. - Stop URLs at \` characters too, same as < and > - Bump MSRV (minimum supported Rust version) to 1.31 (2018 edition) ## [0.3.1] - 2018-02-04 ### Changed - Bump memchr dependency to 2 (for wasm support) ## [0.3.0] - 2018-01-25 ### Added - New API to iterate over both plain text and link spans using the `spans` method. This is useful for iterating over all parts of the input, not just the detected links. Thanks @srijs! ## [0.2.0] - 2017-09-18 ### Changed - Don't autolink if authority is only "end" characters, e.g. like `http://.` or `http://"` ## [0.1.2] - 2017-06-09 ### Fixed - Fix `html_root_url` attribute ## [0.1.1] - 2017-06-08 ### Added - More docs - Add `Debug` impls for `Links` and `LinkFinder` ## [0.1.0] - 2017-05-13 ### Added Initial release of linkify, a Rust library to find links such as URLs and email addresses in plain text, handling surrounding punctuation correctly. [0.9.0]: https://github.com/robinst/linkify/compare/0.8.1...0.9.0 [0.8.1]: https://github.com/robinst/linkify/compare/0.8.0...0.8.1 [0.8.0]: https://github.com/robinst/linkify/compare/0.7.0...0.8.0 [0.7.0]: https://github.com/robinst/linkify/compare/0.6.0...0.7.0 [0.6.0]: https://github.com/robinst/linkify/compare/0.5.0...0.6.0 [0.5.0]: https://github.com/robinst/linkify/compare/0.4.0...0.5.0 [0.4.0]: https://github.com/robinst/linkify/compare/0.3.1...0.4.0 [0.3.1]: https://github.com/robinst/linkify/compare/0.3.0...0.3.1 [0.3.0]: https://github.com/robinst/linkify/compare/0.2.0...0.3.0 [0.2.0]: https://github.com/robinst/linkify/compare/0.1.2...0.2.0 [0.1.2]: https://github.com/robinst/linkify/compare/0.1.1...0.1.2 [0.1.1]: https://github.com/robinst/linkify/compare/0.1.0...0.1.1 [0.1.0]: https://github.com/robinst/linkify/commits/0.1.0 linkify-0.9.0/Cargo.toml0000644000000023640000000000100105120ustar # THIS FILE IS AUTOMATICALLY GENERATED BY CARGO # # When uploading crates to the registry Cargo will automatically # "normalize" Cargo.toml files for maximal compatibility # with all versions of Cargo and also rewrite `path` dependencies # to registry (e.g., crates.io) dependencies. # # If you are reading this file be aware that the original Cargo.toml # will likely look very different (and much more reasonable). # See Cargo.toml.orig for the original contents. [package] edition = "2018" name = "linkify" version = "0.9.0" authors = ["Robin Stocker "] exclude = ["/.github"] description = "Finds URLs and email addresses in plain text. Takes care to get the boundaries right with surrounding punctuation like parentheses." homepage = "https://github.com/robinst/linkify" documentation = "https://docs.rs/linkify" readme = "README.md" keywords = [ "web", "text", "url", "links", ] categories = ["text-processing"] license = "MIT OR Apache-2.0" repository = "https://github.com/robinst/linkify" [[bench]] name = "bench" harness = false [dependencies.memchr] version = "2.0.1" [dev-dependencies.criterion] version = "0.3" [dev-dependencies.doc-comment] version = "0.3.3" [dev-dependencies.plotters-backend] version = "= 0.3.2" linkify-0.9.0/Cargo.toml.orig000064400000000000000000000014060072674642500142170ustar 00000000000000[package] name = "linkify" version = "0.9.0" # remember to update html_root_url authors = ["Robin Stocker "] edition = "2018" license = "MIT OR Apache-2.0" readme = "README.md" repository = "https://github.com/robinst/linkify" homepage = "https://github.com/robinst/linkify" documentation = "https://docs.rs/linkify" description = "Finds URLs and email addresses in plain text. Takes care to get the boundaries right with surrounding punctuation like parentheses." categories = ["text-processing"] keywords = ["web", "text", "url", "links"] exclude = ["/.github"] [dependencies] memchr = "2.0.1" [dev-dependencies] criterion = "0.3" plotters-backend = "= 0.3.2" # 0.3.4 requires later Rust doc-comment = "0.3.3" [[bench]] name = "bench" harness = false linkify-0.9.0/LICENSE-APACHE000064400000000000000000000251370072674642500132630ustar 00000000000000 Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. 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See the License for the specific language governing permissions and limitations under the License. linkify-0.9.0/LICENSE-MIT000064400000000000000000000020560072674642500127660ustar 00000000000000MIT License Copyright (c) 2017 Robin Stocker Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. linkify-0.9.0/README.md000064400000000000000000000100410072674642500126020ustar 00000000000000Linkify ======= Linkify is a Rust library to find links such as URLs and email addresses in plain text. It's smart about where a link ends, such as with trailing punctuation. [![Documentation](https://docs.rs/linkify/badge.svg)](https://docs.rs/linkify) [![Crate](https://img.shields.io/crates/v/linkify.svg)](https://crates.io/crates/linkify) [![ci](https://github.com/robinst/linkify/workflows/ci/badge.svg)](https://github.com/robinst/linkify/actions?query=workflow%3Aci) [![codecov](https://codecov.io/gh/robinst/linkify/branch/main/graph/badge.svg)](https://codecov.io/gh/robinst/linkify) ## Introduction Your reaction might be: "Do I need a library for this? Why not a regex?". Let's look at a few cases: * In `http://example.com/.` the link should not include the trailing dot * `http://example.com/,` should not include the trailing comma * `(http://example.com/)` should not include the parens Seems simple enough. But then we also have these cases: * `https://en.wikipedia.org/wiki/Link_(The_Legend_of_Zelda)` should include the trailing paren * `http://üñîçøðé.com/ä` should also work for Unicode (including Emoji and Punycode) * `` should not include angle brackets This library behaves as you'd expect in the above cases and many more. It uses a simple scan with linear runtime. In addition to URLs, it can also find email addresses. ## Demo 🧑‍🔬 Try it out online on the demo playground (Rust compiled to WebAssembly): https://robinst.github.io/linkify/ If you want to use it on the command line, try [lychee](https://github.com/lycheeverse/lychee). It uses linkify to extract all links and checks if they're valid, but it can also just print them like this: ```shell $ echo 'Test https://example.org (and https://example.com)' | lychee --dump - https://example.org/ https://example.com/ ``` ## Usage Basic usage: ```rust extern crate linkify; use linkify::{LinkFinder, LinkKind}; let input = "Have you seen http://example.com?"; let finder = LinkFinder::new(); let links: Vec<_> = finder.links(input).collect(); assert_eq!(1, links.len()); let link = &links[0]; assert_eq!("http://example.com", link.as_str()); assert_eq!(14, link.start()); assert_eq!(32, link.end()); assert_eq!(&LinkKind::Url, link.kind()); ``` Option to allow URLs without schemes: ```rust use linkify::LinkFinder; let input = "Look, no scheme: example.org/foo"; let mut finder = LinkFinder::new(); // true by default finder.url_must_have_scheme(false); let links: Vec<_> = finder.links(input).collect(); assert_eq!(links[0].as_str(), "example.org/foo"); ``` Restrict the kinds of links: ```rust use linkify::{LinkFinder, LinkKind}; let input = "http://example.com and foo@example.com"; let mut finder = LinkFinder::new(); finder.kinds(&[LinkKind::Email]); let links: Vec<_> = finder.links(input).collect(); assert_eq!(1, links.len()); let link = &links[0]; assert_eq!("foo@example.com", link.as_str()); assert_eq!(&LinkKind::Email, link.kind()); ``` See full documentation on [docs.rs](https://docs.rs/linkify). ## Conformance This crates makes an effort to respect the various standards, namely: * [RFC 3986] and [RFC 3987] for URLs * [RFC 5321] and [RFC 6531] for email addresses (except IP addresses and quoting) At the same time, it does not guarantee that the returned links are valid. If in doubt, it rather returns a link than skipping it. If you need to validate URLs, e.g. for checking TLDs, use another library on the returned links. ## Contributing Pull requests, issues and comments welcome! Make sure to add tests for new features and bug fixes. ## License Linkify is distributed under the terms of both the MIT license and the Apache License (Version 2.0). See [LICENSE-APACHE](LICENSE-APACHE) and [LICENSE-MIT](LICENSE-MIT) for details. Opening a pull requests is assumed to signal agreement with these licensing terms. [RFC 3986]: https://datatracker.ietf.org/doc/html/rfc3986 [RFC 3987]: https://datatracker.ietf.org/doc/html/rfc3987 [RFC 5321]: https://datatracker.ietf.org/doc/html/rfc5321 [RFC 6531]: https://datatracker.ietf.org/doc/html/rfc6531 linkify-0.9.0/benches/bench.rs000064400000000000000000000045450072674642500143730ustar 00000000000000use criterion::{criterion_group, criterion_main, Criterion}; use linkify::LinkFinder; fn no_links(c: &mut Criterion) { c.bench_function("no_links", |b| { let link_finder = LinkFinder::new(); b.iter(|| { let links = link_finder.links( "This is a text with no links in it. But: it has a colon.\ Lorem ipsum dolor sit amet, consectetur adipiscing elit.\ Curabitur luctus tincidunt diam.", ); assert_eq!(links.count(), 0); }); }); } fn some_links(c: &mut Criterion) { c.bench_function("some_links", |b| { let link_finder = LinkFinder::new(); b.iter(|| { let links = link_finder.links( "This is a text with links in it. Here's one: http://www.example.com/. \ How about another one? (Maybe like this http://example.com/foo_(bar)) \ a+b://example.com/foo+bar+baz", ); assert_eq!(links.count(), 3); }); }); } fn heaps_of_links(c: &mut Criterion) { c.bench_function("heaps_of_links", |b| { let link_finder = LinkFinder::new(); b.iter(|| { let links = link_finder.links( "http://www.example.com/a, http://www.example.com/b, http://www.example.com/c \ http://www.example.com/a: http://www.example.com/b: http://www.example.com/c \ http://www.example.com/a http://www.example.com/b http://www.example.com/c \ http://www.example.com/a< http://www.example.com/b< http://www.example.com/c<", ); assert_eq!(links.count(), 12); }); }); } fn some_links_without_scheme(c: &mut Criterion) { c.bench_function("some_links_without_scheme", |b| { let mut link_finder = LinkFinder::new(); link_finder.url_must_have_scheme(false); b.iter(|| { let links = link_finder.links( "This is a text with links in it. Here's one: http://www.example.com/. \ How about another one? (Maybe like this http://example.com/foo_(bar)). \ example.com/one/two/three/four", ); assert_eq!(links.count(), 3); }); }); } criterion_group!( benches, no_links, some_links, heaps_of_links, some_links_without_scheme ); criterion_main!(benches); linkify-0.9.0/src/domains.rs000064400000000000000000000141320072674642500141170ustar 00000000000000//! Domain name related scanning, used by both email and URL scanners. //! //! This is called domains for familiarity but it's about the authority part of URLs as defined in //! https://datatracker.ietf.org/doc/html/rfc3986#section-3.2 //! //! ```text //! authority = [ userinfo "@" ] host [ ":" port ] //! //! //! userinfo = *( unreserved / pct-encoded / sub-delims / ":" ) //! //! host = IP-literal / IPv4address / reg-name //! //! IP-literal = "[" ( IPv6address / IPvFuture ) "]" //! //! IPv4address = dec-octet "." dec-octet "." dec-octet "." dec-octet //! //! reg-name = *( unreserved / pct-encoded / sub-delims ) //! //! //! unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~" //! //! sub-delims = "!" / "$" / "&" / "'" / "(" / ")" / "*" / "+" / "," / ";" / "=" //! //! pct-encoded = "%" HEXDIG HEXDIG //! ``` use std::char; pub(crate) fn find_authority_end( s: &str, mut userinfo_allowed: bool, require_host: bool, port_allowed: bool, ) -> (Option, Option) { let mut end = Some(0); let mut maybe_last_dot = None; let mut last_dot = None; let mut dot_allowed = false; let mut hyphen_allowed = false; let mut all_numeric = true; let mut maybe_host = true; let mut host_ended = false; for (i, c) in s.char_indices() { let can_be_last = match c { // ALPHA 'a'..='z' | 'A'..='Z' | '\u{80}'..=char::MAX => { // Can start or end a domain label, but not numeric dot_allowed = true; hyphen_allowed = true; last_dot = maybe_last_dot; all_numeric = false; if host_ended { maybe_host = false; } !require_host || !host_ended } // DIGIT '0'..='9' => { // Same as above, except numeric dot_allowed = true; hyphen_allowed = true; last_dot = maybe_last_dot; if host_ended { maybe_host = false; } !require_host || !host_ended } // unreserved '-' => { // Hyphen can't be at start of a label, e.g. `-b` in `a.-b.com` if !hyphen_allowed { maybe_host = false; } // Hyphen can't be at end of a label, e.g. `b-` in `a.b-.com` dot_allowed = false; all_numeric = false; !require_host } '.' => { if !dot_allowed { // Label can't be empty, e.g. `.example.com` or `a..com` host_ended = true; } dot_allowed = false; hyphen_allowed = false; maybe_last_dot = Some(i); false } '_' | '~' => { // Hostnames can't contain these and we don't want to treat them as delimiters. maybe_host = false; false } // sub-delims '!' | '$' | '&' | '\'' | '(' | ')' | '*' | '+' | ',' | ';' | '=' => { // Can't be in hostnames, but we treat them as delimiters host_ended = true; if !userinfo_allowed && require_host { // We don't have to look further break; } false } ':' => { // Could be in userinfo, or we're getting a port now. if !userinfo_allowed && !port_allowed { break; } // Don't advance the last dot when we get to port numbers maybe_last_dot = last_dot; false } '@' => { if !userinfo_allowed { // We already had userinfo, can't have another `@` in a valid authority. return (None, None); } // Sike! Everything before this has been userinfo, so let's reset our // opinions about all the host bits. userinfo_allowed = false; maybe_last_dot = None; last_dot = None; dot_allowed = false; hyphen_allowed = false; all_numeric = true; maybe_host = true; host_ended = false; false } '/' => { if !require_host { // For schemes where we allow anything, we want to stop at delimiter characters // except if we get a slash closing the URL, which happened here. end = Some(i); } break; } _ => { // Anything else, this might be the end of the authority (can be empty). // Now let the rest of the code handle checking whether the end of the URL is // valid. break; } }; if can_be_last { end = Some(i + c.len_utf8()); } } if require_host { if maybe_host { // Can't have just a number without dots as the authority if all_numeric && last_dot.is_none() && end != Some(0) { return (None, None); } // If we have something that is not just numeric (not an IP address), // check that the TLD looks reasonable. This is to avoid linking things like // `abc@v1.1`. if !all_numeric { if let Some(last_dot) = last_dot { if !valid_tld(&s[last_dot + 1..]) { return (None, None); } } } return (end, last_dot); } else { return (None, None); } } else { return (end, last_dot); } } fn valid_tld(tld: &str) -> bool { tld.chars() .take_while(|c| c.is_ascii_alphabetic()) .take(2) .count() >= 2 } linkify-0.9.0/src/email.rs000064400000000000000000000047670072674642500135710ustar 00000000000000use std::ops::Range; use crate::domains::find_authority_end; use crate::scanner::Scanner; /// Scan for email address starting from the trigger character "@". /// /// Based on RFC 6531, but also accepts invalid IDNs. Doesn't try to handle IP addresses in domain part or /// quoting in local part. pub struct EmailScanner { pub domain_must_have_dot: bool, } impl Scanner for EmailScanner { fn scan(&self, s: &str, at: usize) -> Option> { if let Some(start) = self.find_start(&s[0..at]) { let after = at + 1; if let Some(end) = self.find_end(&s[after..]) { let range = Range { start, end: after + end, }; return Some(range); } } None } } impl EmailScanner { // See "Local-part" in RFC 5321, plus extensions in RFC 6531 fn find_start(&self, s: &str) -> Option { let mut first = None; let mut atom_boundary = true; for (i, c) in s.char_indices().rev() { if Self::local_atom_allowed(c) { first = Some(i); atom_boundary = false; } else if c == '.' { if atom_boundary { break; } atom_boundary = true; } else if c == '@' { // In `@me@a.com`, we don't want to extract `me@a.com`. return None; } else { break; } } first } // See "Domain" in RFC 5321, plus extension of "sub-domain" in RFC 6531 fn find_end(&self, s: &str) -> Option { if let (Some(end), last_dot) = find_authority_end(s, false, true, false) { if !self.domain_must_have_dot || last_dot.is_some() { Some(end) } else { None } } else { None } } // See "Atom" in RFC 5321, "atext" in RFC 5322 fn local_atom_allowed(c: char) -> bool { match c { 'a'..='z' | 'A'..='Z' | '0'..='9' | '!' | '#' | '$' | '%' | '&' | '\'' | '*' | '+' | '-' | '/' | '=' | '?' | '^' | '_' | '`' | '{' | '|' | '}' | '~' => true, _ => c >= '\u{80}', } } } linkify-0.9.0/src/finder.rs000064400000000000000000000224340072674642500137400ustar 00000000000000use std::fmt; use std::iter::Peekable; use memchr::{memchr, memchr2, memchr3}; use crate::email::EmailScanner; use crate::scanner::Scanner; use crate::url::{DomainScanner, UrlScanner}; /// A link found in the input text. #[derive(Debug)] pub struct Link<'t> { text: &'t str, start: usize, end: usize, kind: LinkKind, } impl<'t> Link<'t> { /// The start index of the link within the input text. #[inline] pub fn start(&self) -> usize { self.start } /// The end index of the link. #[inline] pub fn end(&self) -> usize { self.end } /// Get the link text as a `str`. #[inline] pub fn as_str(&self) -> &'t str { &self.text[self.start..self.end] } /// The type of the link. #[inline] pub fn kind(&self) -> &LinkKind { &self.kind } } /// The type of link that was found. #[derive(Debug, Eq, PartialEq)] pub enum LinkKind { /// URL links like "http://example.org". Url, /// E-mail links like "foo@example.org" Email, /// Users should not exhaustively match this enum, because more link types /// may be added in the future. #[doc(hidden)] __Nonexhaustive, } /// Span within the input text. /// /// A span represents a substring of the input text, /// which can either be a link, or plain text. #[derive(Debug)] pub struct Span<'t> { text: &'t str, start: usize, end: usize, kind: Option, } impl<'t> Span<'t> { /// The start index of the span within the input text. #[inline] pub fn start(&self) -> usize { self.start } /// The end index of the span. #[inline] pub fn end(&self) -> usize { self.end } /// Get the span text as a `str`. #[inline] pub fn as_str(&self) -> &'t str { &self.text[self.start..self.end] } /// The type of link included in the span, if any. /// /// Returns `None` if the span represents plain text. #[inline] pub fn kind(&self) -> Option<&LinkKind> { self.kind.as_ref() } } /// A configured link finder. #[derive(Debug)] pub struct LinkFinder { email: bool, email_domain_must_have_dot: bool, url: bool, url_must_have_scheme: bool, } /// Iterator for finding links. pub struct Links<'t> { text: &'t str, rewind: usize, trigger_finder: Box Option>, email_scanner: EmailScanner, url_scanner: UrlScanner, domain_scanner: DomainScanner, } /// Iterator over spans. pub struct Spans<'t> { text: &'t str, position: usize, links: Peekable>, } impl LinkFinder { /// Create a new link finder with the default options for finding all kinds /// of links. /// /// If you only want to find a certain kind of links, use the `kinds` method. pub fn new() -> LinkFinder { LinkFinder { email: true, email_domain_must_have_dot: true, url: true, url_must_have_scheme: true, } } /// Require the domain parts of email addresses to have at least one dot. /// Use `false` to also find addresses such as `root@localhost`. pub fn email_domain_must_have_dot(&mut self, value: bool) -> &mut LinkFinder { self.email_domain_must_have_dot = value; self } /// Set whether URLs must have a scheme, defaults to `true`. /// /// By default only URLs having a scheme defined are found. /// By setting this to `false` you make the scheme of URLs optional, to also find URLs like /// `example.org`. For some URLs the used scheme is important, and making the scheme optional /// may lead to finding a lot of false positive URLs. pub fn url_must_have_scheme(&mut self, url_must_have_scheme: bool) -> &mut LinkFinder { self.url_must_have_scheme = url_must_have_scheme; self } /// Restrict the kinds of links that should be found to the specified ones. pub fn kinds(&mut self, kinds: &[LinkKind]) -> &mut LinkFinder { self.email = false; self.url = false; for kind in kinds { match *kind { LinkKind::Email => self.email = true, LinkKind::Url => self.url = true, _ => {} } } self } /// Find links in the specified input text. /// /// Returns an `Iterator` which only scans when `next` is called (lazy). pub fn links<'t>(&self, text: &'t str) -> Links<'t> { Links::new( text, self.url, self.url_must_have_scheme, self.email, self.email_domain_must_have_dot, ) } /// Iterate over spans in the specified input text. /// /// A span represents a substring of the input text, /// which can either be a link, or plain text. /// /// Returns an `Iterator` which only scans when `next` is called (lazy). /// /// The spans that are returned by the `Iterator` are consecutive, /// and when combined represent the input text in its entirety. pub fn spans<'t>(&self, text: &'t str) -> Spans<'t> { Spans { text, position: 0, links: self.links(text).peekable(), } } } impl Default for LinkFinder { fn default() -> Self { LinkFinder::new() } } impl<'t> Links<'t> { fn new( text: &'t str, url: bool, url_must_have_scheme: bool, email: bool, email_domain_must_have_dot: bool, ) -> Links<'t> { let url_scanner = UrlScanner; let domain_scanner = DomainScanner; let email_scanner = EmailScanner { domain_must_have_dot: email_domain_must_have_dot, }; // With optional schemes URLs don't have unique `:`, then search for `.` as well let trigger_finder: Box Option> = match (url, email) { (true, true) if url_must_have_scheme => Box::new(|s| memchr2(b':', b'@', s)), (true, true) => Box::new(|s| memchr3(b':', b'@', b'.', s)), (true, false) if url_must_have_scheme => Box::new(|s| memchr(b':', s)), (true, false) => Box::new(|s| memchr2(b':', b'.', s)), (false, true) => Box::new(|s| memchr(b'@', s)), (false, false) => Box::new(|_| None), }; Links { text, rewind: 0, trigger_finder, email_scanner, url_scanner, domain_scanner, } } } impl<'t> Iterator for Links<'t> { type Item = Link<'t>; fn next(&mut self) -> Option> { let slice = &self.text[self.rewind..]; let mut find_from = 0; while let Some(i) = (self.trigger_finder)(slice[find_from..].as_bytes()) { let trigger = slice.as_bytes()[find_from + i]; let (scanner, kind): (&dyn Scanner, LinkKind) = match trigger { b':' => (&self.url_scanner, LinkKind::Url), b'.' => (&self.domain_scanner, LinkKind::Url), b'@' => (&self.email_scanner, LinkKind::Email), _ => unreachable!(), }; if let Some(range) = scanner.scan(slice, find_from + i) { let start = self.rewind + range.start; let end = self.rewind + range.end; self.rewind = end; let link = Link { text: &self.text, start, end, kind, }; return Some(link); } else { // The scanner didn't find anything. But there could be more // trigger characters later, so continue the search. find_from += i + 1; } } None } } impl<'t> fmt::Debug for Links<'t> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { f.debug_struct("Links").field("text", &self.text).finish() } } impl<'t> Iterator for Spans<'t> { type Item = Span<'t>; fn next(&mut self) -> Option> { match self.links.peek() { Some(ref link) => { if self.position < link.start { let span = Span { text: &self.text, start: self.position, end: link.start, kind: None, }; self.position = link.start; return Some(span); } } None => { if self.position < self.text.len() { let span = Span { text: &self.text, start: self.position, end: self.text.len(), kind: None, }; self.position = self.text.len(); return Some(span); } } }; self.links.next().map(|link| { self.position = link.end; Span { text: &self.text, start: link.start, end: link.end, kind: Some(link.kind), } }) } } impl<'t> fmt::Debug for Spans<'t> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { f.debug_struct("Spans").field("text", &self.text).finish() } } linkify-0.9.0/src/lib.rs000064400000000000000000000102470072674642500132360ustar 00000000000000//! Linkify finds links such as URLs and email addresses in plain text. //! It's smart about where a link ends, such as with trailing punctuation. //! //! Your reaction might be: "Do I need a library for this? Why not a regex?". //! Let's look at a few cases: //! //! * In `http://example.com/.` the link should not include the trailing dot //! * `http://example.com/,` should not include the trailing comma //! * `(http://example.com/)` should not include the parens //! //! Seems simple enough. But then we also have these cases: //! //! * `https://en.wikipedia.org/wiki/Link_(The_Legend_of_Zelda)` should include the trailing paren //! * `http://üñîçøðé.com/ä` should also work for Unicode (including Emoji and Punycode) //! * `` should not include angle brackets //! //! This library behaves as you'd expect in the above cases and many more. //! It uses a simple scan with linear runtime. //! //! In addition to URLs, it can also find emails. //! //! ### Usage //! //! Basic usage: //! //! ``` //! use linkify::{LinkFinder, LinkKind}; //! //! let input = "Have you seen http://example.com?"; //! let finder = LinkFinder::new(); //! let links: Vec<_> = finder.links(input).collect(); //! //! assert_eq!(1, links.len()); //! let link = &links[0]; //! //! assert_eq!("http://example.com", link.as_str()); //! assert_eq!(14, link.start()); //! assert_eq!(32, link.end()); //! assert_eq!(&LinkKind::Url, link.kind()); //! ``` //! //! Option to allow URLs without schemes: //! //! ``` //! use linkify::LinkFinder; //! //! let input = "Look, no scheme: example.org/foo"; //! let mut finder = LinkFinder::new(); //! //! // true by default //! finder.url_must_have_scheme(false); //! //! let links: Vec<_> = finder.links(input).collect(); //! assert_eq!(links[0].as_str(), "example.org/foo"); //! ``` //! //! Restrict the kinds of links: //! //! ``` //! use linkify::{LinkFinder, LinkKind}; //! //! let input = "http://example.com and foo@example.com"; //! let mut finder = LinkFinder::new(); //! finder.kinds(&[LinkKind::Email]); //! let links: Vec<_> = finder.links(input).collect(); //! //! assert_eq!(1, links.len()); //! let link = &links[0]; //! assert_eq!("foo@example.com", link.as_str()); //! assert_eq!(&LinkKind::Email, link.kind()); //! ``` //! //! Split the text into consecutive spans (mixed links and plain text). //! //! ``` //! use linkify::{LinkFinder, LinkKind}; //! //! let input = "Have you seen http://example.com?"; //! let finder = LinkFinder::new(); //! let spans: Vec<_> = finder.spans(input).collect(); //! //! assert_eq!(3, spans.len()); //! //! assert_eq!("Have you seen ", spans[0].as_str()); //! assert_eq!(0, spans[0].start()); //! assert_eq!(14, spans[0].end()); //! assert_eq!(None, spans[0].kind()); //! //! assert_eq!("http://example.com", spans[1].as_str()); //! assert_eq!(14, spans[1].start()); //! assert_eq!(32, spans[1].end()); //! assert_eq!(Some(&LinkKind::Url), spans[1].kind()); //! //! assert_eq!("?", spans[2].as_str()); //! assert_eq!(32, spans[2].start()); //! assert_eq!(33, spans[2].end()); //! assert_eq!(None, spans[2].kind()); //! ``` //! //! ### Conformance //! //! This crates makes an effort to respect the various standards, namely: //! //! * [RFC 3986] and [RFC 3987] for URLs //! * [RFC 5321] and [RFC 6531] for emails (except IP addresses and quoting) //! //! At the same time, it does not guarantee that the returned links are valid. //! If in doubt, it rather returns a link than skipping it. //! //! If you need to validate URLs, e.g. for checking TLDs, use another library on //! the returned links. //! //! [RFC 3986]: https://datatracker.ietf.org/doc/html/rfc3986 //! [RFC 3987]: https://datatracker.ietf.org/doc/html/rfc3987 //! [RFC 5321]: https://datatracker.ietf.org/doc/html/rfc5321 //! [RFC 6531]: https://datatracker.ietf.org/doc/html/rfc6531 #![doc(html_root_url = "https://docs.rs/linkify/0.9.0")] #![deny(warnings)] #![deny(missing_docs)] #![deny(missing_debug_implementations)] mod domains; mod email; mod finder; mod scanner; mod url; pub use crate::finder::Link; pub use crate::finder::LinkFinder; pub use crate::finder::LinkKind; pub use crate::finder::Links; pub use crate::finder::{Span, Spans}; #[cfg(doctest)] doc_comment::doctest!("../README.md"); linkify-0.9.0/src/scanner.rs000064400000000000000000000001670072674642500141210ustar 00000000000000use std::ops::Range; pub trait Scanner { fn scan(&self, s: &str, trigger_index: usize) -> Option>; } linkify-0.9.0/src/url.rs000064400000000000000000000231010072674642500132630ustar 00000000000000use std::char; use std::ops::Range; use crate::domains::find_authority_end; use crate::scanner::Scanner; /// Minimum valid URL length /// /// The shortest valid URL (without a scheme) might be g.cn (Google China), /// which consists of four characters. /// We set this as a lower threshold for parsing URLs from plaintext /// to avoid false-positives and as a slight performance optimization. /// This threshold might be adjusted in the future. const MIN_URL_LENGTH: usize = 4; const QUOTES: &[char] = &['\'', '\"']; /// Scan for URLs starting from the trigger character ":" (requires "://"). /// /// Based on RFC 3986. pub struct UrlScanner; /// Scan for plain domains (without scheme) such as `test.com` or `test.com/hi-there`. pub struct DomainScanner; impl Scanner for UrlScanner { /// Scan for an URL at the given separator index in the string. /// /// Returns `None` if none was found. fn scan(&self, s: &str, separator: usize) -> Option> { // There must be something before separator for scheme if separator == 0 { return None; } if !s[separator..].starts_with("://") { // We only support schemes with authority, not things like `myscheme:mything`. return None; } let after_separator = separator + "://".len(); // Need at least one character after '//' if after_separator >= s.len() { return None; } if let (Some(start), quote) = find_scheme_start(&s[0..separator]) { let scheme = &s[start..separator]; let s = &s[after_separator..]; let require_host = scheme_requires_host(scheme); if let (Some(after_authority), _) = find_authority_end(s, true, require_host, true) { if let Some(end) = find_url_end(&s[after_authority..], quote) { if after_authority == 0 && end == 0 { return None; } let range = Range { start, end: after_separator + after_authority + end, }; return Some(range); } } } None } } impl Scanner for DomainScanner { fn scan(&self, s: &str, separator: usize) -> Option> { // There must be something before separator for domain, and a minimum number of characters if separator == 0 || s.len() < MIN_URL_LENGTH { return None; } if let (Some(start), quote) = find_domain_start(&s[0..separator]) { let s = &s[start..]; if let (Some(domain_end), Some(_)) = find_authority_end(s, false, true, true) { if let Some(end) = find_url_end(&s[domain_end..], quote) { let range = Range { start, end: start + domain_end + end, }; return Some(range); } } } None } } /// Find start of scheme, e.g. from `https://`, start at `s` and end at `h`. fn find_scheme_start(s: &str) -> (Option, Option) { let mut first = None; let mut special = None; let mut quote = None; for (i, c) in s.char_indices().rev() { match c { 'a'..='z' | 'A'..='Z' => first = Some(i), '0'..='9' => special = Some(i), '+' | '-' | '.' => {} '@' => return (None, None), c if QUOTES.contains(&c) => { // Check if there's a quote before the scheme, // and stop once we encounter one of those quotes. // https://github.com/robinst/linkify/issues/20 quote = Some(c); break; } _ => break, } } // We don't want to extract "abc://foo" out of "1abc://foo". // ".abc://foo" and others are ok though, as they feel more like separators. if let Some(first) = first { if let Some(special) = special { // Comparing the byte indices with `- 1` is ok as scheme must be ASCII if first > 0 && first - 1 == special { return (None, quote); } } } (first, quote) } /// Whether a scheme requires that authority looks like a host name (domain or IP address) or not /// (can contain reg-name with arbitrary allowed characters). /// /// We could make this configurable, but let's keep it simple until someone asks (hi!). fn scheme_requires_host(scheme: &str) -> bool { match scheme { "https" | "http" | "file" | "ftp" | "ssh" => true, _ => false, } } /// Find the start of a plain domain URL (no scheme), e.g. from `blog.`, start at `g` and end at `b`. /// The rules are: /// - Domain is labels separated by `.`. Because we're starting at the first `.`, we only need to /// handle one label. /// - Label can not start or end with `-` /// - Label can contain letters, digits, `-` or Unicode fn find_domain_start(s: &str) -> (Option, Option) { let mut first = None; let mut quote = None; for (i, c) in s.char_indices().rev() { match c { 'a'..='z' | 'A'..='Z' | '0'..='9' | '\u{80}'..=char::MAX => first = Some(i), // If we had something valid like `https://www.` we'd have found it with the ":" // scanner already. We don't want to allow `.../www.example.com` just by itself. // We *could* allow `//www.example.com` (scheme-relative URLs) in the future. '/' => return (None, None), // Similar to above, if this was an email we'd have found it already. '@' => return (None, None), // If this was a valid domain, we'd have extracted it already from the previous "." '.' => return (None, None), '-' => { if first == None { // Domain label can't end with `-` return (None, None); } else { first = Some(i); } } c if QUOTES.contains(&c) => { // Check if there's a quote before, and stop once we encounter one of those quotes, // e.g. with `"www.example.com"` quote = Some(c); break; } _ => break, } } if let Some(first) = first { if s[first..].starts_with('-') { // Domain label can't start with `-` return (None, None); } } (first, quote) } /// Find the end of a URL. At this point we already scanned past a valid authority. So e.g. in /// `https://example.com/foo` we're starting at `/` and want to end at `o`. fn find_url_end(s: &str, quote: Option) -> Option { let mut round = 0; let mut square = 0; let mut curly = 0; let mut single_quote = false; let mut previous_can_be_last = true; let mut end = Some(0); if !s[0..].starts_with("/") { return Some(0); } for (i, c) in s.char_indices() { let can_be_last = match c { '\u{00}'..='\u{1F}' | ' ' | '|' | '\"' | '<' | '>' | '`' | '\u{7F}'..='\u{9F}' => { // These can never be part of an URL, so stop now. See RFC 3986 and RFC 3987. // Some characters are not in the above list, even they are not in "unreserved" // or "reserved": // '\\', '^', '{', '}' // The reason for this is that other link detectors also allow them. Also see // below, we require the braces to be balanced. break; } '?' | '!' | '.' | ',' | ':' | ';' | '*' => { // These may be part of an URL but not at the end. It's not that the spec // doesn't allow them, but they are frequently used in plain text as delimiters // where they're not meant to be part of the URL. false } '/' => { // This may be part of an URL and at the end, but not if the previous character // can't be the end of an URL previous_can_be_last } '(' => { round += 1; false } ')' => { round -= 1; if round < 0 { // More closing than opening brackets, stop now break; } true } '[' => { square += 1; false } ']' => { square -= 1; if square < 0 { // More closing than opening brackets, stop now break; } true } '{' => { curly += 1; false } '}' => { curly -= 1; if curly < 0 { // More closing than opening brackets, stop now break; } true } _ if Some(c) == quote => { // Found matching quote from beginning of URL, stop now break; } '\'' => { single_quote = !single_quote; // A single quote can only be the end of an URL if there's an even number !single_quote } _ => true, }; if can_be_last { end = Some(i + c.len_utf8()); } previous_can_be_last = can_be_last; } end } linkify-0.9.0/tests/common/mod.rs000064400000000000000000000010510072674642500151030ustar 00000000000000use linkify::LinkFinder; pub fn assert_linked_with(finder: &LinkFinder, input: &str, expected: &str) { let actual = show_links(input, finder); assert_eq!(actual, expected); } pub fn show_links(input: &str, finder: &LinkFinder) -> String { let mut result = String::new(); for span in finder.spans(input) { if span.kind().is_some() { result.push('|'); result.push_str(span.as_str()); result.push('|'); } else { result.push_str(span.as_str()); } } result } linkify-0.9.0/tests/domains.rs000064400000000000000000000110170072674642500144710ustar 00000000000000mod common; use crate::common::assert_linked_with; use linkify::LinkFinder; #[test] fn domain_valid() { assert_linked("9292.nl", "|9292.nl|"); assert_linked("a12.b-c.com", "|a12.b-c.com|"); } #[test] fn domain_invalid_tld() { assert_not_linked("v1.2.3"); assert_not_linked("https://12-7.0.0.1/"); } #[test] fn domain_with_userinfo() { assert_linked( "https://user:pass@example.com/", "|https://user:pass@example.com/|", ); assert_linked( "https://user:-.!$@example.com/", "|https://user:-.!$@example.com/|", ); assert_linked( "https://user:!$&\'()*+,;=@example.com/", "|https://user:!$&\'()*+,;=@example.com/|", ); // Can't have another @ assert_not_linked("https://user:pass@ex@mple.com/"); } #[test] fn domain_with_port() { assert_linked("https://localhost:8080!", "|https://localhost:8080|!"); assert_linked("https://localhost:8080/", "|https://localhost:8080/|"); } #[test] fn domain_with_userinfo_and_port() { assert_linked( "https://user:pass@example.com:8080/hi", "|https://user:pass@example.com:8080/hi|", ); } #[test] fn domain_ipv4() { assert_linked("https://127.0.0.1/", "|https://127.0.0.1/|"); } #[test] fn domain_trailing_dot() { // assert_linked("https://example.com./test", "|https://example.com./test|"); assert_linked( "https://example.com.:8080/test", "|https://example.com.:8080/test|", ); } #[test] fn domain_delimited() { // Delimiter at end of domain should *not* be included assert_linked("https://example.org'", "|https://example.org|'"); // Unless it's a userinfo of course (sike!) assert_linked( "https://example.org'a@example.com", "|https://example.org'a@example.com|", ); } #[test] fn domain_delimited_multiple() { assert_linked( "https://a.com'https://b.com", "https://a.com'|https://b.com|", ); } #[test] fn domain_dots() { assert_linked("https://example.com...", "|https://example.com|...") } #[test] fn domain_labels_cant_be_empty() { assert_not_linked("www.example..com"); assert_not_linked("https://.www.example.com"); } #[test] fn domain_labels_cant_start_with_hyphen() { assert_not_linked("-a.com"); assert_not_linked("https://a.-b.com"); } #[test] fn domain_labels_cant_end_with_hyphen() { assert_not_linked("a-.com"); assert_not_linked("a.b-.com"); assert_not_linked("https://a.b-.com"); // Could also argue that it should not be linked at all assert_linked("https://example.com-/", "|https://example.com|-/"); assert_linked("https://example.org-", "|https://example.org|-"); } #[test] fn domain_cant_contain_at() { // Looks like an email but was recognized as a schemeless link before. assert_not_linked("example.com@about"); // As part of path it's ok. assert_linked("example.com/@about", "|example.com/@about|"); assert_linked("https://example.com/@about", "|https://example.com/@about|"); } #[test] fn domain_cant_end_numeric() { assert_not_linked("info@v1.1.1"); } #[test] fn no_authority_part() { assert_linked("file:///", "|file:///|"); assert_linked("file:///home/foo", "|file:///home/foo|"); assert_linked("file://localhost/home/foo", "|file://localhost/home/foo|"); } #[test] fn authority_thats_not_domain() { // Not valid according to DNS but we should allow it for other schemes (or all, not sure). assert_linked("facetime://+19995551234", "|facetime://+19995551234|"); } #[test] fn authority_without_slash_should_stop_at_delimiters() { // What's going on here? For schemes where we don't enforce domainyness, // we want to stop at delimiter characters. Note that `!` is valid in authorities. assert_linked("test://123'456!!!", "|test://123'456|!!!"); assert_linked("test://123'456...", "|test://123'456|..."); // ... unless there is a "/" terminating the authority. assert_linked("test://123'456!!!/", "|test://123'456!!!/|"); assert_linked("test://123'456.../", "|test://123'456.../|"); } #[test] fn without_scheme_should_stop() { // assert_linked("ab/example.com", "ab/|example.com|"); // This is not a valid scheme. Even the schemeless parser should not accept it, nor extract // only example.com out of it. assert_not_linked("1abc://example.com"); } fn assert_linked(input: &str, expected: &str) { let mut finder = LinkFinder::new(); finder.url_must_have_scheme(false); assert_linked_with(&finder, input, expected); } fn assert_not_linked(s: &str) { assert_linked(s, s); } linkify-0.9.0/tests/email.rs000064400000000000000000000067470072674642500141440ustar 00000000000000mod common; use crate::common::assert_linked_with; use linkify::LinkFinder; use linkify::LinkKind; #[test] fn no_links() { assert_not_linked(""); assert_not_linked("foo"); assert_not_linked("@"); assert_not_linked("a@"); assert_not_linked("@a"); assert_not_linked("@@@"); } #[test] fn simple() { assert_linked("foo@example.com", "|foo@example.com|"); assert_linked("foo.bar@example.com", "|foo.bar@example.com|"); } #[test] fn allowed_text() { // I know, I know... assert_linked( "#!$%&'*+-/=?^_`{}|~@example.org", "|#!$%&'*+-/=?^_`{}|~@example.org|", ); } #[test] fn space_separation() { assert_linked("foo a@b.com", "foo |a@b.com|"); assert_linked("a@b.com foo", "|a@b.com| foo"); assert_linked("\na@b.com", "\n|a@b.com|"); assert_linked("a@b.com\n", "|a@b.com|\n"); } #[test] fn special_separation() { assert_linked("(a@example.com)", "(|a@example.com|)"); assert_linked("\"a@example.com\"", "\"|a@example.com|\""); assert_linked("\"a@example.com\"", "\"|a@example.com|\""); assert_linked(",a@example.com,", ",|a@example.com|,"); assert_linked(":a@example.com:", ":|a@example.com|:"); assert_linked(";a@example.com;", ";|a@example.com|;"); } #[test] fn dots() { assert_not_linked(".@example.com"); assert_not_linked("foo.@example.com"); assert_linked(".foo@example.com", ".|foo@example.com|"); assert_linked(".foo@example.com", ".|foo@example.com|"); assert_linked("a..b@example.com", "a..|b@example.com|"); assert_linked("a@example.com.", "|a@example.com|."); } #[test] fn domain_without_dot() { assert_not_linked("a@b"); assert_not_linked("a@b."); assert_linked("a@b.com.", "|a@b.com|."); } #[test] fn dashes() { assert_linked("a@example.com-", "|a@example.com|-"); assert_linked("a@foo-bar.com", "|a@foo-bar.com|"); assert_not_linked("a@-foo.com"); assert_not_linked("a@b-."); } #[test] fn domain_must_have_dot_false() { let mut finder = LinkFinder::new(); finder.kinds(&[LinkKind::Email]); finder.email_domain_must_have_dot(false); assert_linked_with(&finder, "a@b", "|a@b|"); assert_linked_with(&finder, "a@b.", "|a@b|."); assert_linked_with(&finder, "a@b.", "|a@b|."); } #[test] fn multiple() { assert_linked( "a@example.com b@example.com", "|a@example.com| |b@example.com|", ); assert_linked( "a@example.com @ b@example.com", "|a@example.com| @ |b@example.com|", ); } #[test] fn multiple_delimited_hard() { assert_linked( "a@xy.com;b@xy.com,c@xy.com", "|a@xy.com|;|b@xy.com|,|c@xy.com|", ); } #[test] fn international() { assert_linked("üñîçøðé@example.com", "|üñîçøðé@example.com|"); assert_linked("üñîçøðé@üñîçøðé.com", "|üñîçøðé@üñîçøðé.com|"); } #[test] fn trigger_overlap() { let finder = LinkFinder::new(); // 'w' is a trigger character for WWW links. Make sure we can rewind enough. assert_linked_with(&finder, "www@example.com", "|www@example.com|"); } #[test] fn fuzz() { assert_linked("a@a.xyϸ", "|a@a.xyϸ|"); } fn assert_not_linked(s: &str) { let mut finder = LinkFinder::new(); finder.kinds(&[LinkKind::Email]); let result = finder.links(s); assert_eq!(result.count(), 0, "expected no links in {:?}", s); } fn assert_linked(input: &str, expected: &str) { let mut finder = LinkFinder::new(); finder.kinds(&[LinkKind::Email]); assert_linked_with(&finder, input, expected); } linkify-0.9.0/tests/types.rs000064400000000000000000000010750072674642500142060ustar 00000000000000use linkify::Link; use linkify::LinkFinder; use linkify::LinkKind; #[test] fn send_and_sync() { check_send::(); check_sync::(); check_send::>(); check_sync::>(); } #[test] fn equality() { let finder = LinkFinder::new(); let first = finder.links("http://example.org").next(); assert!(first.is_some()); let link = first.unwrap(); // Check that link has Debug println!("{:?}", link); assert_eq!(link.kind(), &LinkKind::Url); } fn check_send() {} fn check_sync() {} linkify-0.9.0/tests/url.rs000064400000000000000000000443140072674642500136470ustar 00000000000000mod common; use crate::common::assert_linked_with; use linkify::{LinkFinder, LinkKind}; #[test] fn no_links() { assert_not_linked(""); assert_not_linked("foo"); assert_not_linked(":"); assert_not_linked("://"); assert_not_linked(":::"); } #[test] fn schemes() { assert_not_linked("://foo"); assert_not_linked("1://foo"); assert_not_linked("123://foo"); assert_not_linked("+://foo"); assert_not_linked("-://foo"); assert_not_linked(".://foo"); assert_not_linked("1abc://foo"); assert_linked("a://foo", "|a://foo|"); assert_linked("a123://foo", "|a123://foo|"); assert_linked("a123b://foo", "|a123b://foo|"); assert_linked("a+b://foo", "|a+b://foo|"); assert_linked("a-b://foo", "|a-b://foo|"); assert_linked("a.b://foo", "|a.b://foo|"); assert_linked("ABC://foo", "|ABC://foo|"); assert_linked(".http://example.org/", ".|http://example.org/|"); assert_linked("1.http://example.org/", "1.|http://example.org/|"); } #[test] fn authority() { assert_not_linked("ab://"); assert_not_linked("file://"); assert_not_linked("file:// "); assert_not_linked("\"file://\""); assert_not_linked("\"file://...\", "); assert_linked("http://a.", "|http://a|."); } #[test] fn local_links() { assert_linked("http://127.0.0.1", "|http://127.0.0.1|"); assert_linked("http://127.0.0.1/", "|http://127.0.0.1/|"); } #[test] fn single_links() { assert_linked("ab://c", "|ab://c|"); assert_linked("http://example.org/", "|http://example.org/|"); assert_linked("http://example.org/123", "|http://example.org/123|"); assert_linked( "http://example.org/?foo=test&bar=123", "|http://example.org/?foo=test&bar=123|", ); assert_linked( "http://example.org/?foo=%20", "|http://example.org/?foo=%20|", ); assert_linked("http://example.org/%3C", "|http://example.org/%3C|"); } #[test] fn single_links_without_protocol() { assert_urls_without_protocol("example.org/", "|example.org/|"); assert_urls_without_protocol("example.org/123", "|example.org/123|"); assert_urls_without_protocol( "example.org/?foo=test&bar=123", "|example.org/?foo=test&bar=123|", ); assert_urls_without_protocol("example.org/?foo=%20", "|example.org/?foo=%20|"); assert_urls_without_protocol("example.org/%3C", "|example.org/%3C|"); } #[test] fn space_characters_stop_url() { assert_linked("foo http://example.org/", "foo |http://example.org/|"); assert_linked("http://example.org/ bar", "|http://example.org/| bar"); assert_linked("http://example.org/\tbar", "|http://example.org/|\tbar"); assert_linked("http://example.org/\nbar", "|http://example.org/|\nbar"); assert_linked( "http://example.org/\u{0B}bar", "|http://example.org/|\u{0B}bar", ); assert_linked( "http://example.org/\u{0C}bar", "|http://example.org/|\u{0C}bar", ); assert_linked("http://example.org/\rbar", "|http://example.org/|\rbar"); } #[test] fn space_characters_stop_url_without_protocol() { assert_urls_without_protocol("foo example.org/", "foo |example.org/|"); assert_urls_without_protocol("example.org/ bar", "|example.org/| bar"); assert_urls_without_protocol("example.org/\tbar", "|example.org/|\tbar"); assert_urls_without_protocol("example.org/\nbar", "|example.org/|\nbar"); assert_urls_without_protocol("example.org/\u{0B}bar", "|example.org/|\u{0B}bar"); assert_urls_without_protocol("example.org/\u{0C}bar", "|example.org/|\u{0C}bar"); assert_urls_without_protocol("example.org/\rbar", "|example.org/|\rbar"); } #[test] fn illegal_characters_stop_url() { assert_linked("http://example.org/<", "|http://example.org/|<"); assert_linked("http://example.org/>", "|http://example.org/|>"); assert_linked("http://example.org/<>", "|http://example.org/|<>"); assert_linked("http://example.org/\u{00}", "|http://example.org/|\u{00}"); assert_linked("http://example.org/\u{0E}", "|http://example.org/|\u{0E}"); assert_linked("http://example.org/\u{7F}", "|http://example.org/|\u{7F}"); assert_linked("http://example.org/\u{9F}", "|http://example.org/|\u{9F}"); assert_linked("http://example.org/foo|bar", "|http://example.org/foo||bar"); } #[test] fn illegal_characters_stop_url_without_protocol() { assert_urls_without_protocol("example.org/<", "|example.org/|<"); assert_urls_without_protocol("example.org/>", "|example.org/|>"); assert_urls_without_protocol("example.org/<>", "|example.org/|<>"); assert_urls_without_protocol("example.org/\u{00}", "|example.org/|\u{00}"); assert_urls_without_protocol("example.org/\u{0E}", "|example.org/|\u{0E}"); assert_urls_without_protocol("example.org/\u{7F}", "|example.org/|\u{7F}"); assert_urls_without_protocol("example.org/\u{9F}", "|example.org/|\u{9F}"); } #[test] fn delimiter_at_end() { assert_linked("http://example.org/.", "|http://example.org/|."); assert_linked("http://example.org/..", "|http://example.org/|.."); assert_linked("http://example.org/,", "|http://example.org/|,"); assert_linked("http://example.org/:", "|http://example.org/|:"); assert_linked("http://example.org/?", "|http://example.org/|?"); assert_linked("http://example.org/!", "|http://example.org/|!"); assert_linked("http://example.org/;", "|http://example.org/|;"); } #[test] fn delimiter_at_end_no_protocol() { assert_urls_without_protocol("example.org/.", "|example.org/|."); assert_urls_without_protocol("example.org/..", "|example.org/|.."); assert_urls_without_protocol("example.org/,", "|example.org/|,"); assert_urls_without_protocol("example.org/:", "|example.org/|:"); assert_urls_without_protocol("example.org/?", "|example.org/|?"); assert_urls_without_protocol("example.org/!", "|example.org/|!"); assert_urls_without_protocol("example.org/;", "|example.org/|;"); } #[test] fn matching_punctuation() { assert_linked("http://example.org/a(b)", "|http://example.org/a(b)|"); assert_linked("http://example.org/a[b]", "|http://example.org/a[b]|"); assert_linked("http://example.org/a{b}", "|http://example.org/a{b}|"); assert_linked("http://example.org/a'b'", "|http://example.org/a'b'|"); assert_linked("(http://example.org/)", "(|http://example.org/|)"); assert_linked("[http://example.org/]", "[|http://example.org/|]"); assert_linked("{http://example.org/}", "{|http://example.org/|}"); assert_linked("\"http://example.org/\"", "\"|http://example.org/|\""); assert_linked("'http://example.org/'", "'|http://example.org/|'"); } #[test] fn matching_punctuation_without_protocol() { assert_urls_without_protocol("example.org/a(b)", "|example.org/a(b)|"); assert_urls_without_protocol("example.org/a[b]", "|example.org/a[b]|"); assert_urls_without_protocol("example.org/a{b}", "|example.org/a{b}|"); assert_urls_without_protocol("example.org/a'b'", "|example.org/a'b'|"); assert_urls_without_protocol("(example.org/)", "(|example.org/|)"); assert_urls_without_protocol("[example.org/]", "[|example.org/|]"); assert_urls_without_protocol("{example.org/}", "{|example.org/|}"); assert_urls_without_protocol("\"example.org/\"", "\"|example.org/|\""); assert_urls_without_protocol("'example.org/'", "'|example.org/|'"); } #[test] fn matching_punctuation_tricky() { assert_linked("((http://example.org/))", "((|http://example.org/|))"); assert_linked( "((http://example.org/a(b)))", "((|http://example.org/a(b)|))", ); assert_linked("[(http://example.org/)]", "[(|http://example.org/|)]"); assert_linked("(http://example.org/).", "(|http://example.org/|)."); assert_linked("(http://example.org/.)", "(|http://example.org/|.)"); assert_linked("http://example.org/>", "|http://example.org/|>"); // not sure about these assert_linked("http://example.org/(", "|http://example.org/|("); assert_linked("http://example.org/(.", "|http://example.org/|(."); assert_linked("http://example.org/]()", "|http://example.org/|]()"); } #[test] fn matching_punctuation_tricky_without_protocol() { assert_urls_without_protocol("((example.org/))", "((|example.org/|))"); assert_urls_without_protocol("((example.org/a(b)))", "((|example.org/a(b)|))"); assert_urls_without_protocol("[(example.org/)]", "[(|example.org/|)]"); assert_urls_without_protocol("(example.org/).", "(|example.org/|)."); assert_urls_without_protocol("(example.org/.)", "(|example.org/|.)"); assert_urls_without_protocol("example.org/>", "|example.org/|>"); // not sure about these assert_urls_without_protocol("example.org/(", "|example.org/|("); assert_urls_without_protocol("example.org/(.", "|example.org/|(."); assert_urls_without_protocol("example.org/]()", "|example.org/|]()"); } #[test] fn single_quote() { assert_linked("'https://example.org'", "'|https://example.org|'"); assert_linked("\"https://example.org\"", "\"|https://example.org|\""); assert_linked("''https://example.org''", "''|https://example.org|''"); assert_linked("'https://example.org''", "'|https://example.org|''"); assert_linked("'https://example.org", "'|https://example.org|"); assert_linked( "http://example.org/\'_(foo)", "|http://example.org/\'_(foo)|", ); assert_linked( "http://example.org/\'_(foo)\'", "|http://example.org/\'_(foo)\'|", ); assert_linked("http://example.org/\'\'", "|http://example.org/\'\'|"); assert_linked("http://example.org/\'\'\'", "|http://example.org/\'\'|\'"); assert_linked("http://example.org/\'.", "|http://example.org/|\'."); assert_linked("http://example.org/\'a", "|http://example.org/\'a|"); assert_linked("http://example.org/it's", "|http://example.org/it's|"); } #[test] fn single_quote_without_protocol() { assert_urls_without_protocol("example.org/\'_(foo)", "|example.org/\'_(foo)|"); assert_urls_without_protocol("example.org/\'_(foo)\'", "|example.org/\'_(foo)\'|"); assert_urls_without_protocol("example.org/\'\'", "|example.org/\'\'|"); assert_urls_without_protocol("example.org/\'\'\'", "|example.org/\'\'|\'"); assert_urls_without_protocol("example.org/\'.", "|example.org/|\'."); assert_urls_without_protocol("example.org/\'a", "|example.org/\'a|"); assert_urls_without_protocol("example.org/it's", "|example.org/it's|"); } #[test] fn double_quote() { // " not allowed in URLs assert_linked("http://example.org/\"a", "|http://example.org/|\"a"); assert_linked("http://example.org/\"a\"", "|http://example.org/|\"a\""); } #[test] fn grave_quote() { // ` not allowed in URLs assert_linked("http://example.org/`a", "|http://example.org/|`a"); assert_linked("http://example.org/`a`", "|http://example.org/|`a`"); } #[test] fn asterisk() { assert_linked("https://example.org*", "|https://example.org|*"); assert_linked("https://example.org/*", "|https://example.org/|*"); assert_linked("https://example.org/**", "|https://example.org/|**"); assert_linked("https://example.org/*/a", "|https://example.org/*/a|"); } #[test] fn grave_quote_without_protocol() { // ` not allowed in URLs assert_urls_without_protocol("example.org/`a", "|example.org/|`a"); assert_urls_without_protocol("example.org/`a`", "|example.org/|`a`"); } #[test] fn html() { assert_linked("http://example.org\">", "|http://example.org|\">"); assert_linked("http://example.org'>", "|http://example.org|'>"); assert_linked("http://example.org\"/>", "|http://example.org|\"/>"); assert_linked("http://example.org'/>", "|http://example.org|'/>"); assert_linked("http://example.org

", "|http://example.org|

"); assert_linked("http://example.org

", "|http://example.org|

"); } #[test] fn html_no_protocol() { assert_urls_without_protocol("example.org\">", "|example.org|\">"); assert_urls_without_protocol("example.org'>", "|example.org|'>"); assert_urls_without_protocol("example.org\"/>", "|example.org|\"/>"); assert_urls_without_protocol("example.org'/>", "|example.org|'/>"); assert_urls_without_protocol("example.org

", "|example.org|

"); assert_urls_without_protocol("example.org

", "|example.org|

"); } #[test] fn css() { assert_linked("http://example.org\");", "|http://example.org|\");"); assert_linked("http://example.org');", "|http://example.org|');"); } #[test] fn images() { assert_linked( r#""#, r#""#, ); } #[test] fn complex_html() { assert_linked( r#"
"#, r#"
"#, ); assert_linked( r#"
"#, r#"
"#, ); assert_linked( r#"
"#, r#"
"#, ) } #[test] fn css_without_protocol() { assert_urls_without_protocol("example.org\");", "|example.org|\");"); assert_urls_without_protocol("example.org');", "|example.org|');"); } #[test] fn slash() { assert_linked("http://example.org/", "|http://example.org/|"); assert_linked("http://example.org/a/", "|http://example.org/a/|"); assert_linked("http://example.org//", "|http://example.org//|"); } #[test] fn slash_without_protocol() { assert_urls_without_protocol("example.org/", "|example.org/|"); assert_urls_without_protocol("example.org/a/", "|example.org/a/|"); assert_urls_without_protocol("example.org//", "|example.org//|"); } #[test] fn multiple() { assert_linked( "http://one.org/ http://two.org/", "|http://one.org/| |http://two.org/|", ); assert_linked( "http://one.org/ : http://two.org/", "|http://one.org/| : |http://two.org/|", ); assert_linked( "(http://one.org/)(http://two.org/)", "(|http://one.org/|)(|http://two.org/|)", ); } #[test] fn multiple_without_protocol() { assert_urls_without_protocol("one.org/ two.org/", "|one.org/| |two.org/|"); assert_urls_without_protocol("one.org/ : two.org/", "|one.org/| : |two.org/|"); assert_urls_without_protocol("(one.org/)(two.org/)", "(|one.org/|)(|two.org/|)"); } #[test] fn multiple_mixed_protocol() { assert_urls_without_protocol("http://one.org/ two.org/", "|http://one.org/| |two.org/|"); assert_urls_without_protocol( "one.org/ : http://two.org/", "|one.org/| : |http://two.org/|", ); assert_urls_without_protocol( "(http://one.org/)(two.org/)", "(|http://one.org/|)(|two.org/|)", ); } #[test] fn international() { assert_linked("http://üñîçøðé.com", "|http://üñîçøðé.com|"); assert_linked("http://üñîçøðé.com/ä", "|http://üñîçøðé.com/ä|"); assert_linked("http://example.org/\u{A1}", "|http://example.org/\u{A1}|"); assert_linked("http://example.org/\u{A2}", "|http://example.org/\u{A2}|"); assert_linked( "http://example.org/\u{1F600}", "|http://example.org/\u{1F600}|", ); assert_linked("http://example.org/\u{A2}/", "|http://example.org/\u{A2}/|"); assert_linked( "http://xn--c1h.example.com/", "|http://xn--c1h.example.com/|", ); } #[test] fn international_without_protocol() { assert_urls_without_protocol("üñîçøðé.com", "|üñîçøðé.com|"); assert_urls_without_protocol("üñîçøðé.com/ä", "|üñîçøðé.com/ä|"); assert_urls_without_protocol("example.org/\u{A1}", "|example.org/\u{A1}|"); assert_urls_without_protocol("example.org/\u{A2}", "|example.org/\u{A2}|"); assert_urls_without_protocol("example.org/\u{1F600}", "|example.org/\u{1F600}|"); assert_urls_without_protocol("example.org/\u{A2}/", "|example.org/\u{A2}/|"); assert_urls_without_protocol("xn--c1h.example.com/", "|xn--c1h.example.com/|"); } #[test] fn domain_tld_without_protocol_must_be_long() { assert_urls_without_protocol("example.", "example."); assert_urls_without_protocol("example./", "example./"); assert_urls_without_protocol("foo.com.", "|foo.com|."); assert_urls_without_protocol("example.c", "example.c"); assert_urls_without_protocol("example.co", "|example.co|"); assert_urls_without_protocol("example.com", "|example.com|"); assert_urls_without_protocol("e.com", "|e.com|"); assert_urls_without_protocol("exampl.e.c", "exampl.e.c"); assert_urls_without_protocol("exampl.e.co", "|exampl.e.co|"); assert_urls_without_protocol("e.xample.c", "e.xample.c"); assert_urls_without_protocol("e.xample.co", "|e.xample.co|"); assert_urls_without_protocol("v1.1.1", "v1.1.1"); } #[test] fn skip_emails_without_protocol() { assert_not_linked_without_protocol("foo.bar@example.org"); assert_not_linked_without_protocol("example.com@example.com"); } #[test] fn avoid_multiple_matches_without_protocol() { let mut finder = LinkFinder::new(); finder.url_must_have_scheme(false); let links: Vec<_> = finder.links("http://example.com").collect(); assert_eq!(links.len(), 1); assert_eq!(links[0].as_str(), "http://example.com"); } #[test] fn without_protocol_and_email() { let mut finder = LinkFinder::new(); finder.url_must_have_scheme(false); assert_linked_with( &finder, "Look, no scheme: example.org/foo email@foo.com", "Look, no scheme: |example.org/foo| |email@foo.com|", ); assert_linked_with( &finder, "Web: www.foobar.co E-Mail: bar@foobar.co (bla bla bla)", "Web: |www.foobar.co| E-Mail: |bar@foobar.co| (bla bla bla)", ); } #[test] fn fuzz() { assert_not_linked("ab:/ϸ"); } fn assert_not_linked(s: &str) { assert_linked(s, s); } /// Assert link with protocol fn assert_linked(input: &str, expected: &str) { let finder = LinkFinder::new(); assert_linked_with(&finder, input, expected); } fn assert_not_linked_without_protocol(s: &str) { assert_urls_without_protocol(s, s); } /// Assert link without protocol fn assert_urls_without_protocol(input: &str, expected: &str) { let mut finder = LinkFinder::new(); finder.url_must_have_scheme(false); finder.kinds(&[LinkKind::Url]); assert_linked_with(&finder, input, expected); }