forked from GNUsocial/gnu-social
[UTIL][Formatting][COMPONENT][Link][Tag] Refactor code from formatting into Link and Tag, where appropriate. Drop 'perfect url regex' as the one used in v2 is better
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@ -27,17 +27,11 @@ use App\Core\Modules\Component;
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use App\Entity;
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use App\Entity\NoteToLink;
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use App\Util\Common;
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use App\Util\HTML;
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use InvalidArgumentException;
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class Link extends Component
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{
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/**
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* "Perfect URL Regex", courtesy of https://urlregex.com/
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*/
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const URL_REGEX = <<<END
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%(?:(?:https?|ftp)://)(?:\\S+(?::\\S*)?@|\\d{1,3}(?:\\.\\d{1,3}){3}|(?:(?:[a-z\\d\\x{00a1}-\\x{ffff}]+-?)*[a-z\\d\\x{00a1}-\\x{ffff}]+)(?:\\.(?:[a-z\\d\\x{00a1}-\\x{ffff}]+-?)*[a-z\\d\\x{00a1}-\\x{ffff}]+)*(?:\\.[a-z\\x{00a1}-\\x{ffff}]{2,6}))(?::\\d+)?(?:[^\\s]*)?%iu
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END;
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/**
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* Extract URLs from $content and create the appropriate Link and NoteToLink entities
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*/
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@ -45,10 +39,11 @@ END;
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{
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if (Common::config('attachments', 'process_links')) {
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$matched_urls = [];
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preg_match_all(self::URL_REGEX, $content, $matched_urls, PREG_SET_ORDER);
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preg_match($this->getURLRegex(), $content, $matched_urls);
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$matched_urls = array_unique($matched_urls);
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foreach ($matched_urls as $match) {
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try {
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$link_id = Entity\Link::getOrCreate($match[0])->getId();
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$link_id = Entity\Link::getOrCreate($match)->getId();
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DB::persist(NoteToLink::create(['link_id' => $link_id, 'note_id' => $note_id]));
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} catch (InvalidArgumentException) {
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continue;
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@ -57,4 +52,212 @@ END;
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}
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return Event::next;
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}
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public function onRenderContent(string &$text)
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{
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$text = $this->replaceURLs($text);
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}
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public function getURLRegex(): string
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{
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$geouri_labeltext_regex = '\pN\pL\-';
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$geouri_mark_regex = '\-\_\.\!\~\*\\\'\(\)'; // the \\\' is really pretty
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$geouri_unreserved_regex = '\pN\pL' . $geouri_mark_regex;
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$geouri_punreserved_regex = '\[\]\:\&\+\$';
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$geouri_pctencoded_regex = '(?:\%[0-9a-fA-F][0-9a-fA-F])';
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$geouri_paramchar_regex = $geouri_unreserved_regex . $geouri_punreserved_regex; //FIXME: add $geouri_pctencoded_regex here so it works
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return '#' .
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'(?:^|[\s\<\>\(\)\[\]\{\}\\\'\\\";]+)(?![\@\!\#])' .
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'(' .
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'(?:' .
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'(?:' . //Known protocols
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'(?:' .
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'(?:(?:' . implode('|', $this->URLSchemes(self::URL_SCHEME_COLON_DOUBLE_SLASH)) . ')://)' .
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'|' .
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'(?:(?:' . implode('|', $this->URLSchemes(self::URL_SCHEME_SINGLE_COLON)) . '):)' .
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')' .
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'(?:[\pN\pL\-\_\+\%\~]+(?::[\pN\pL\-\_\+\%\~]+)?\@)?' . //user:pass@
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'(?:' .
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'(?:' .
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'\[[\pN\pL\-\_\:\.]+(?<![\.\:])\]' . //[dns]
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')|(?:' .
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'[\pN\pL\-\_\:\.]+(?<![\.\:])' . //dns
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')' .
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')' .
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')' .
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'|(?:' .
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'(?:' . implode('|', $this->URLSchemes(self::URL_SCHEME_COLON_COORDINATES)) . '):' .
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// There's an order that must be followed here too, if ;crs= is used, it must precede ;u=
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// Also 'crsp' (;crs=$crsp) must match $geouri_labeltext_regex
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// Also 'uval' (;u=$uval) must be a pnum: \-?[0-9]+
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'(?:' .
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'(?:[0-9]+(?:\.[0-9]+)?(?:\,[0-9]+(?:\.[0-9]+)?){1,2})' . // 1(.23)?(,4(.56)){1,2}
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'(?:\;(?:[' . $geouri_labeltext_regex . ']+)(?:\=[' . $geouri_paramchar_regex . ']+)*)*' .
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')' .
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')' .
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// URLs without domain name, like magnet:?xt=...
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'|(?:(?:' . implode('|', $this->URLSchemes(self::URL_SCHEME_NO_DOMAIN)) . '):(?=\?))' . // zero-length lookahead requires ? after :
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(Common::config('linkify', 'ipv4') // Convert IPv4 addresses to hyperlinks
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? '|(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)'
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: '') .
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(Common::config('linkify', 'ipv6') // Convert IPv6 addresses to hyperlinks
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? '|(?:' . //IPv6
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'\[?(?:(?:(?:[0-9A-Fa-f]{1,4}:){7}(?:(?:[0-9A-Fa-f]{1,4})|:))|(?:(?:[0-9A-Fa-f]{1,4}:){6}(?::|(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})|(?::[0-9A-Fa-f]{1,4})))|(?:(?:[0-9A-Fa-f]{1,4}:){5}(?:(?::(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})?)|(?:(?::[0-9A-Fa-f]{1,4}){1,2})))|(?:(?:[0-9A-Fa-f]{1,4}:){4}(?::[0-9A-Fa-f]{1,4}){0,1}(?:(?::(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})?)|(?:(?::[0-9A-Fa-f]{1,4}){1,2})))|(?:(?:[0-9A-Fa-f]{1,4}:){3}(?::[0-9A-Fa-f]{1,4}){0,2}(?:(?::(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})?)|(?:(?::[0-9A-Fa-f]{1,4}){1,2})))|(?:(?:[0-9A-Fa-f]{1,4}:){2}(?::[0-9A-Fa-f]{1,4}){0,3}(?:(?::(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})?)|(?:(?::[0-9A-Fa-f]{1,4}){1,2})))|(?:(?:[0-9A-Fa-f]{1,4}:)(?::[0-9A-Fa-f]{1,4}){0,4}(?:(?::(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})?)|(?:(?::[0-9A-Fa-f]{1,4}){1,2})))|(?::(?::[0-9A-Fa-f]{1,4}){0,5}(?:(?::(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})?)|(?:(?::[0-9A-Fa-f]{1,4}){1,2})))|(?:(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})))\]?(?<!:)' .
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')'
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: '') .
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(Common::config('linkify', 'bare_domains')
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? '|(?:' . //DNS
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'(?:[\pN\pL\-\_\+\%\~]+(?:\:[\pN\pL\-\_\+\%\~]+)?\@)?' . //user:pass@
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'[\pN\pL\-\_]+(?:\.[\pN\pL\-\_]+)*\.' .
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//tld list from http://data.iana.org/TLD/tlds-alpha-by-domain.txt, also added local, loc, and onion
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'(?:AC|AD|AE|AERO|AF|AG|AI|AL|AM|AN|AO|AQ|AR|ARPA|AS|ASIA|AT|AU|AW|AX|AZ|BA|BB|BD|BE|BF|BG|BH|BI|BIZ|BJ|BM|BN|BO|BR|BS|BT|BV|BW|BY|BZ|CA|CAT|CC|CD|CF|CG|CH|CI|CK|CL|CM|CN|CO|COM|COOP|CR|CU|CV|CX|CY|CZ|DE|DJ|DK|DM|DO|DZ|EC|EDU|EE|EG|ER|ES|ET|EU|FI|FJ|FK|FM|FO|FR|GA|GB|GD|GE|GF|GG|GH|GI|GL|GM|GN|GOV|GP|GQ|GR|GS|GT|GU|GW|GY|HK|HM|HN|HR|HT|HU|ID|IE|IL|IM|IN|INFO|INT|IO|IQ|IR|IS|IT|JE|JM|JO|JOBS|JP|KE|KG|KH|KI|KM|KN|KP|KR|KW|KY|KZ|LA|LB|LC|LI|LK|LR|LS|LT|LU|LV|LY|MA|MC|MD|ME|MG|MH|MIL|MK|ML|MM|MN|MO|MOBI|MP|MQ|MR|MS|MT|MU|MUSEUM|MV|MW|MX|MY|MZ|NA|NAME|NC|NE|NET|NF|NG|NI|NL|NO|NP|NR|NU|NZ|OM|ORG|PA|PE|PF|PG|PH|PK|PL|PM|PN|PR|PRO|PS|PT|PW|PY|QA|RE|RO|RS|RU|RW|SA|SB|SC|SD|SE|SG|SH|SI|SJ|SK|SL|SM|SN|SO|SR|ST|SU|SV|SY|SZ|TC|TD|TEL|TF|TG|TH|TJ|TK|TL|TM|TN|TO|TP|TR|TRAVEL|TT|TV|TW|TZ|UA|UG|UK|US|UY|UZ|VA|VC|VE|VG|VI|VN|VU|WF|WS|XN--0ZWM56D|测试|XN--11B5BS3A9AJ6G|परीक्षा|XN--80AKHBYKNJ4F|испытание|XN--9T4B11YI5A|테스트|XN--DEBA0AD|טעסט|XN--G6W251D|測試|XN--HGBK6AJ7F53BBA|آزمایشی|XN--HLCJ6AYA9ESC7A|பரிட்சை|XN--JXALPDLP|δοκιμή|XN--KGBECHTV|إختبار|XN--ZCKZAH|テスト|YE|YT|YU|ZA|ZM|ZONE|ZW|local|loc|onion)' .
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')(?![\pN\pL\-\_])'
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: '') . // if common_config('linkify', 'bare_domains') is false, don't add anything here
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')' .
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'(?:' .
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'(?:\:\d+)?' . //:port
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'(?:/[' . URL_REGEX_VALID_PATH_CHARS . ']*)?' . // path
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'(?:\?[' . URL_REGEX_VALID_QSTRING_CHARS . ']*)?' . // ?query string
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'(?:\#[' . URL_REGEX_VALID_FRAGMENT_CHARS . ']*)?' . // #fragment
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')(?<![' . URL_REGEX_EXCLUDED_END_CHARS . '])' .
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')' .
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'#ixu';
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}
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const URL_SCHEME_COLON_DOUBLE_SLASH = 1;
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const URL_SCHEME_SINGLE_COLON = 2;
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const URL_SCHEME_NO_DOMAIN = 4;
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const URL_SCHEME_COLON_COORDINATES = 8;
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public function URLSchemes($filter = null)
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{
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// TODO: move these to config
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$schemes = [
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'http' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
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'https' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
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'ftp' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
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'ftps' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
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'mms' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
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'rtsp' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
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'gopher' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
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'news' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
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'nntp' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
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'telnet' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
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'wais' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
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'file' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
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'prospero' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
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'webcal' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
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'irc' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
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'ircs' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
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'aim' => self::URL_SCHEME_SINGLE_COLON,
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'bitcoin' => self::URL_SCHEME_SINGLE_COLON,
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'fax' => self::URL_SCHEME_SINGLE_COLON,
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'jabber' => self::URL_SCHEME_SINGLE_COLON,
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'mailto' => self::URL_SCHEME_SINGLE_COLON,
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'tel' => self::URL_SCHEME_SINGLE_COLON,
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'xmpp' => self::URL_SCHEME_SINGLE_COLON,
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'magnet' => self::URL_SCHEME_NO_DOMAIN,
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'geo' => self::URL_SCHEME_COLON_COORDINATES,
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];
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return array_keys(array_filter($schemes, fn ($scheme) => is_null($filter) || ($scheme & $filter)));
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}
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/**
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* Find links in the given text and pass them to the given callback function.
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*
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* @param string $text
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*/
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public function replaceURLs(string $text): string
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{
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$regex = $this->getURLRegex();
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return preg_replace_callback($regex, fn ($matches) => $this->callbackHelper($matches, [$this, 'linkify']), $text);
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}
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/**
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* Intermediate callback for `replaceURLs()`, which helps resolve some
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* ambiguous link forms before passing on to the final callback.
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*
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* @param array $matches
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* @param callable(string $text): string $callback: return replacement text
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*
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* @return string
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*/
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private function callbackHelper(array $matches, callable $callback): string
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{
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$url = $matches[1];
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$left = strpos($matches[0], $url);
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$right = $left + strlen($url);
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$groupSymbolSets = [
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[
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'left' => '(',
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'right' => ')',
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],
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[
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'left' => '[',
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'right' => ']',
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],
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[
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'left' => '{',
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'right' => '}',
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],
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[
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'left' => '<',
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'right' => '>',
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],
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];
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$cannotEndWith = ['.', '?', ',', '#'];
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do {
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$original_url = $url;
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foreach ($groupSymbolSets as $groupSymbolSet) {
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if (substr($url, -1) == $groupSymbolSet['right']) {
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$group_left_count = substr_count($url, $groupSymbolSet['left']);
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$group_right_count = substr_count($url, $groupSymbolSet['right']);
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if ($group_left_count < $group_right_count) {
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--$right;
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$url = substr($url, 0, -1);
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}
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}
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}
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if (in_array(substr($url, -1), $cannotEndWith)) {
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--$right;
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$url = substr($url, 0, -1);
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}
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} while ($original_url != $url);
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$result = $callback($url);
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return substr($matches[0], 0, $left) . $result . substr($matches[0], $right);
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}
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/**
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* Convert a plain text $url to HTML <a>
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*/
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public function linkify(string $url): string
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{
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// It comes in special'd, so we unspecial it before passing to the stringifying
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// functions
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$url = htmlspecialchars_decode($url);
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if (strpos($url, '@') !== false && strpos($url, ':') === false && ($email = filter_var($url, FILTER_VALIDATE_EMAIL)) !== false) {
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//url is an email address without the mailto: protocol
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$url = "mailto:{$email}";
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}
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$attrs = ['href' => $url, 'title' => $url];
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// TODO Check to see whether this is a known "attachment" URL.
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// Whether to nofollow
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$nf = Common::config('nofollow', 'external');
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if ($nf == 'never') {
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$attrs['rel'] = 'external';
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} else {
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$attrs['rel'] = 'noopener nofollow external noreferrer';
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}
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return HTML::html(['a' => ['attrs' => $attrs, $url]], options: ['indent' => false]);
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}
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}
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@ -24,18 +24,29 @@ namespace Component\Tag;
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use App\Core\DB\DB;
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use App\Core\Event;
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use App\Core\Modules\Component;
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use App\Core\Router\Router;
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use App\Entity\NoteTag;
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use App\Util\Formatting;
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use App\Util\HTML;
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/**
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* Component responsible for extracting tags from posted notes, as well as normalizing them
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*
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* @author Hugo Sales <hugo@hsal.es>
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* @author Hugo Sales <hugo@hsal.es>
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* @copyright 2021 Free Software Foundation, Inc http://www.fsf.org
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* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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*/
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class Tag extends Component
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{
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const TAG_REGEX = '/(?:^|\s)#([\pL\pN_\-\.]{1,64})/u'; // Brion Vibber 2011-02-23 v2:classes/Notice.php:367 function saveTags
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const MAX_TAG_LENGTH = 64;
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const TAG_REGEX = '/(^|\\s)(#[\\pL\\pN_\\-\\.]{1,64})/u'; // Brion Vibber 2011-02-23 v2:classes/Notice.php:367 function saveTags
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const TAG_SLUG_REGEX = '[A-Za-z0-9]{1,64}';
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public function onAddRoute($r): bool
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{
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$r->connect('tag', '/tag/{tag<' . self::TAG_SLUG_REGEX . '>}' , [Controller\Tag::class, 'tag']);
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return Event::next;
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}
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/**
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* Process note by extracting any tags present
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@ -46,7 +57,8 @@ class Tag extends Component
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$processed_tags = false;
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preg_match_all(self::TAG_REGEX, $content, $matched_tags, PREG_SET_ORDER);
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foreach ($matched_tags as $match) {
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DB::persist($tag = NoteTag::create(['tag' => $match[0], 'note_id' => $note_id]));
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$tag = $match[2];
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DB::persist(NoteTag::create(['tag' => $tag, 'canonical' => $this->canonicalTag($tag), 'note_id' => $note_id]));
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$processed_tags = true;
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}
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if ($processed_tags) {
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@ -54,9 +66,20 @@ class Tag extends Component
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}
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}
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public function onAddRoute($r): bool
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public function onRenderContent(string &$text)
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{
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$r->connect('tag', '/tag/{tag' . self::TAG_REGEX . '}' , [Controller\Tag::class, 'tag']);
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return Event::next;
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$text = preg_replace_callback(self::TAG_REGEX, fn ($m) => $m[1] . $this->tagLink($m[2]), $text);
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}
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|
||||
private function tagLink(string $tag): string
|
||||
{
|
||||
$canonical = $this->canonicalTag($tag);
|
||||
$url = Router::url('tag', ['tag' => $canonical]);
|
||||
return HTML::html(['a' => ['attrs' => ['href' => $url, 'title' => $tag, 'rel' => 'tag'], $tag]], options: ['indent' => false]);
|
||||
}
|
||||
|
||||
public function canonicalTag(string $tag): string
|
||||
{
|
||||
return substr(Formatting::slugify($tag), 0, self::MAX_TAG_LENGTH);
|
||||
}
|
||||
}
|
||||
|
||||
@ -32,7 +32,6 @@ namespace App\Util;
|
||||
|
||||
use App\Core\Event;
|
||||
use App\Core\Log;
|
||||
use App\Core\Router\Router;
|
||||
use App\Entity\Actor;
|
||||
use App\Entity\Group;
|
||||
use App\Entity\Note;
|
||||
@ -263,11 +262,9 @@ abstract class Formatting
|
||||
// Split \n\n into paragraphs, process each paragrah and merge
|
||||
$text = implode("\n", F\map(explode("\n\n", $text), function (string $paragraph) {
|
||||
$paragraph = nl2br($paragraph, use_xhtml: false);
|
||||
$paragraph = self::replaceURLs($paragraph, [self::class, 'linkify']);
|
||||
$paragraph = preg_replace_callback('/(^|\"\;|\'|\(|\[|\{|\s+)(#[\pL\pN_\-\.]{1,64})/u',
|
||||
fn ($m) => "{$m[1]}" . self::tagLink($m[2]), $paragraph);
|
||||
Event::handle('RenderContent', [&$paragraph]);
|
||||
|
||||
return HTML::html(['p' => [$paragraph]], options: ['raw' => true]);
|
||||
return HTML::html(['p' => [$paragraph]], options: ['raw' => true, 'indent' => false]);
|
||||
}));
|
||||
|
||||
return $text;
|
||||
@ -286,232 +283,16 @@ abstract class Formatting
|
||||
return preg_replace(['/[\x{0}-\x{8}\x{b}-\x{c}\x{e}-\x{19}\x{200b}-\x{200f}\x{202a}-\x{202e}]/u', '/\R/u'], ['', "\n"], $text);
|
||||
}
|
||||
|
||||
const URL_SCHEME_COLON_DOUBLE_SLASH = 1;
|
||||
const URL_SCHEME_SINGLE_COLON = 2;
|
||||
const URL_SCHEME_NO_DOMAIN = 4;
|
||||
const URL_SCHEME_COLON_COORDINATES = 8;
|
||||
|
||||
public static function URLSchemes($filter = null)
|
||||
{
|
||||
// TODO: move these to config
|
||||
$schemes = [
|
||||
'http' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
|
||||
'https' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
|
||||
'ftp' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
|
||||
'ftps' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
|
||||
'mms' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
|
||||
'rtsp' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
|
||||
'gopher' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
|
||||
'news' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
|
||||
'nntp' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
|
||||
'telnet' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
|
||||
'wais' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
|
||||
'file' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
|
||||
'prospero' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
|
||||
'webcal' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
|
||||
'irc' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
|
||||
'ircs' => self::URL_SCHEME_COLON_DOUBLE_SLASH,
|
||||
'aim' => self::URL_SCHEME_SINGLE_COLON,
|
||||
'bitcoin' => self::URL_SCHEME_SINGLE_COLON,
|
||||
'fax' => self::URL_SCHEME_SINGLE_COLON,
|
||||
'jabber' => self::URL_SCHEME_SINGLE_COLON,
|
||||
'mailto' => self::URL_SCHEME_SINGLE_COLON,
|
||||
'tel' => self::URL_SCHEME_SINGLE_COLON,
|
||||
'xmpp' => self::URL_SCHEME_SINGLE_COLON,
|
||||
'magnet' => self::URL_SCHEME_NO_DOMAIN,
|
||||
'geo' => self::URL_SCHEME_COLON_COORDINATES,
|
||||
];
|
||||
|
||||
return array_keys(array_filter($schemes, fn ($scheme) => is_null($filter) || ($scheme & $filter)));
|
||||
}
|
||||
|
||||
/**
|
||||
* Find links in the given text and pass them to the given callback function.
|
||||
*
|
||||
* @param string $text
|
||||
* @param callable(string $text, mixed $arg): string $callback: return replacement text
|
||||
* @param mixed $arg: optional argument will be passed on to the callback
|
||||
*/
|
||||
public static function replaceURLs(string $text, callable $callback, mixed $arg = null)
|
||||
{
|
||||
$geouri_labeltext_regex = '\pN\pL\-';
|
||||
$geouri_mark_regex = '\-\_\.\!\~\*\\\'\(\)'; // the \\\' is really pretty
|
||||
$geouri_unreserved_regex = '\pN\pL' . $geouri_mark_regex;
|
||||
$geouri_punreserved_regex = '\[\]\:\&\+\$';
|
||||
$geouri_pctencoded_regex = '(?:\%[0-9a-fA-F][0-9a-fA-F])';
|
||||
$geouri_paramchar_regex = $geouri_unreserved_regex . $geouri_punreserved_regex; //FIXME: add $geouri_pctencoded_regex here so it works
|
||||
|
||||
// Start off with a regex
|
||||
$regex = '#' .
|
||||
'(?:^|[\s\<\>\(\)\[\]\{\}\\\'\\\";]+)(?![\@\!\#])' .
|
||||
'(' .
|
||||
'(?:' .
|
||||
'(?:' . //Known protocols
|
||||
'(?:' .
|
||||
'(?:(?:' . implode('|', self::URLSchemes(self::URL_SCHEME_COLON_DOUBLE_SLASH)) . ')://)' .
|
||||
'|' .
|
||||
'(?:(?:' . implode('|', self::URLSchemes(self::URL_SCHEME_SINGLE_COLON)) . '):)' .
|
||||
')' .
|
||||
'(?:[\pN\pL\-\_\+\%\~]+(?::[\pN\pL\-\_\+\%\~]+)?\@)?' . //user:pass@
|
||||
'(?:' .
|
||||
'(?:' .
|
||||
'\[[\pN\pL\-\_\:\.]+(?<![\.\:])\]' . //[dns]
|
||||
')|(?:' .
|
||||
'[\pN\pL\-\_\:\.]+(?<![\.\:])' . //dns
|
||||
')' .
|
||||
')' .
|
||||
')' .
|
||||
'|(?:' .
|
||||
'(?:' . implode('|', self::URLSchemes(self::URL_SCHEME_COLON_COORDINATES)) . '):' .
|
||||
// There's an order that must be followed here too, if ;crs= is used, it must precede ;u=
|
||||
// Also 'crsp' (;crs=$crsp) must match $geouri_labeltext_regex
|
||||
// Also 'uval' (;u=$uval) must be a pnum: \-?[0-9]+
|
||||
'(?:' .
|
||||
'(?:[0-9]+(?:\.[0-9]+)?(?:\,[0-9]+(?:\.[0-9]+)?){1,2})' . // 1(.23)?(,4(.56)){1,2}
|
||||
'(?:\;(?:[' . $geouri_labeltext_regex . ']+)(?:\=[' . $geouri_paramchar_regex . ']+)*)*' .
|
||||
')' .
|
||||
')' .
|
||||
// URLs without domain name, like magnet:?xt=...
|
||||
'|(?:(?:' . implode('|', self::URLSchemes(self::URL_SCHEME_NO_DOMAIN)) . '):(?=\?))' . // zero-length lookahead requires ? after :
|
||||
(Common::config('linkify', 'ipv4') // Convert IPv4 addresses to hyperlinks
|
||||
? '|(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)'
|
||||
: '') .
|
||||
(Common::config('linkify', 'ipv6') // Convert IPv6 addresses to hyperlinks
|
||||
? '|(?:' . //IPv6
|
||||
'\[?(?:(?:(?:[0-9A-Fa-f]{1,4}:){7}(?:(?:[0-9A-Fa-f]{1,4})|:))|(?:(?:[0-9A-Fa-f]{1,4}:){6}(?::|(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})|(?::[0-9A-Fa-f]{1,4})))|(?:(?:[0-9A-Fa-f]{1,4}:){5}(?:(?::(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})?)|(?:(?::[0-9A-Fa-f]{1,4}){1,2})))|(?:(?:[0-9A-Fa-f]{1,4}:){4}(?::[0-9A-Fa-f]{1,4}){0,1}(?:(?::(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})?)|(?:(?::[0-9A-Fa-f]{1,4}){1,2})))|(?:(?:[0-9A-Fa-f]{1,4}:){3}(?::[0-9A-Fa-f]{1,4}){0,2}(?:(?::(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})?)|(?:(?::[0-9A-Fa-f]{1,4}){1,2})))|(?:(?:[0-9A-Fa-f]{1,4}:){2}(?::[0-9A-Fa-f]{1,4}){0,3}(?:(?::(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})?)|(?:(?::[0-9A-Fa-f]{1,4}){1,2})))|(?:(?:[0-9A-Fa-f]{1,4}:)(?::[0-9A-Fa-f]{1,4}){0,4}(?:(?::(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})?)|(?:(?::[0-9A-Fa-f]{1,4}){1,2})))|(?::(?::[0-9A-Fa-f]{1,4}){0,5}(?:(?::(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})?)|(?:(?::[0-9A-Fa-f]{1,4}){1,2})))|(?:(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})))\]?(?<!:)' .
|
||||
')'
|
||||
: '') .
|
||||
(Common::config('linkify', 'bare_domains')
|
||||
? '|(?:' . //DNS
|
||||
'(?:[\pN\pL\-\_\+\%\~]+(?:\:[\pN\pL\-\_\+\%\~]+)?\@)?' . //user:pass@
|
||||
'[\pN\pL\-\_]+(?:\.[\pN\pL\-\_]+)*\.' .
|
||||
//tld list from http://data.iana.org/TLD/tlds-alpha-by-domain.txt, also added local, loc, and onion
|
||||
'(?:AC|AD|AE|AERO|AF|AG|AI|AL|AM|AN|AO|AQ|AR|ARPA|AS|ASIA|AT|AU|AW|AX|AZ|BA|BB|BD|BE|BF|BG|BH|BI|BIZ|BJ|BM|BN|BO|BR|BS|BT|BV|BW|BY|BZ|CA|CAT|CC|CD|CF|CG|CH|CI|CK|CL|CM|CN|CO|COM|COOP|CR|CU|CV|CX|CY|CZ|DE|DJ|DK|DM|DO|DZ|EC|EDU|EE|EG|ER|ES|ET|EU|FI|FJ|FK|FM|FO|FR|GA|GB|GD|GE|GF|GG|GH|GI|GL|GM|GN|GOV|GP|GQ|GR|GS|GT|GU|GW|GY|HK|HM|HN|HR|HT|HU|ID|IE|IL|IM|IN|INFO|INT|IO|IQ|IR|IS|IT|JE|JM|JO|JOBS|JP|KE|KG|KH|KI|KM|KN|KP|KR|KW|KY|KZ|LA|LB|LC|LI|LK|LR|LS|LT|LU|LV|LY|MA|MC|MD|ME|MG|MH|MIL|MK|ML|MM|MN|MO|MOBI|MP|MQ|MR|MS|MT|MU|MUSEUM|MV|MW|MX|MY|MZ|NA|NAME|NC|NE|NET|NF|NG|NI|NL|NO|NP|NR|NU|NZ|OM|ORG|PA|PE|PF|PG|PH|PK|PL|PM|PN|PR|PRO|PS|PT|PW|PY|QA|RE|RO|RS|RU|RW|SA|SB|SC|SD|SE|SG|SH|SI|SJ|SK|SL|SM|SN|SO|SR|ST|SU|SV|SY|SZ|TC|TD|TEL|TF|TG|TH|TJ|TK|TL|TM|TN|TO|TP|TR|TRAVEL|TT|TV|TW|TZ|UA|UG|UK|US|UY|UZ|VA|VC|VE|VG|VI|VN|VU|WF|WS|XN--0ZWM56D|测试|XN--11B5BS3A9AJ6G|परीक्षा|XN--80AKHBYKNJ4F|испытание|XN--9T4B11YI5A|테스트|XN--DEBA0AD|טעסט|XN--G6W251D|測試|XN--HGBK6AJ7F53BBA|آزمایشی|XN--HLCJ6AYA9ESC7A|பரிட்சை|XN--JXALPDLP|δοκιμή|XN--KGBECHTV|إختبار|XN--ZCKZAH|テスト|YE|YT|YU|ZA|ZM|ZONE|ZW|local|loc|onion)' .
|
||||
')(?![\pN\pL\-\_])'
|
||||
: '') . // if common_config('linkify', 'bare_domains') is false, don't add anything here
|
||||
')' .
|
||||
'(?:' .
|
||||
'(?:\:\d+)?' . //:port
|
||||
'(?:/[' . URL_REGEX_VALID_PATH_CHARS . ']*)?' . // path
|
||||
'(?:\?[' . URL_REGEX_VALID_QSTRING_CHARS . ']*)?' . // ?query string
|
||||
'(?:\#[' . URL_REGEX_VALID_FRAGMENT_CHARS . ']*)?' . // #fragment
|
||||
')(?<![' . URL_REGEX_EXCLUDED_END_CHARS . '])' .
|
||||
')' .
|
||||
'#ixu';
|
||||
|
||||
return preg_replace_callback($regex, fn ($matches) => self::callbackHelper($matches, $callback, $arg), $text);
|
||||
}
|
||||
|
||||
/**
|
||||
* Intermediate callback for common_replace_links(), helps resolve some
|
||||
* ambiguous link forms before passing on to the final callback.
|
||||
*
|
||||
* @param array $matches
|
||||
* @param callable $callback
|
||||
* @param mixed $arg optional argument to pass on as second param to callback
|
||||
*
|
||||
* @return string
|
||||
*
|
||||
*/
|
||||
private static function callbackHelper(array $matches, callable $callback, mixed $arg = null): string
|
||||
{
|
||||
$url = $matches[1];
|
||||
$left = strpos($matches[0], $url);
|
||||
$right = $left + strlen($url);
|
||||
|
||||
$groupSymbolSets = [
|
||||
[
|
||||
'left' => '(',
|
||||
'right' => ')',
|
||||
],
|
||||
[
|
||||
'left' => '[',
|
||||
'right' => ']',
|
||||
],
|
||||
[
|
||||
'left' => '{',
|
||||
'right' => '}',
|
||||
],
|
||||
[
|
||||
'left' => '<',
|
||||
'right' => '>',
|
||||
],
|
||||
];
|
||||
|
||||
$cannotEndWith = ['.', '?', ',', '#'];
|
||||
do {
|
||||
$original_url = $url;
|
||||
foreach ($groupSymbolSets as $groupSymbolSet) {
|
||||
if (substr($url, -1) == $groupSymbolSet['right']) {
|
||||
$group_left_count = substr_count($url, $groupSymbolSet['left']);
|
||||
$group_right_count = substr_count($url, $groupSymbolSet['right']);
|
||||
if ($group_left_count < $group_right_count) {
|
||||
--$right;
|
||||
$url = substr($url, 0, -1);
|
||||
}
|
||||
}
|
||||
}
|
||||
if (in_array(substr($url, -1), $cannotEndWith)) {
|
||||
--$right;
|
||||
$url = substr($url, 0, -1);
|
||||
}
|
||||
} while ($original_url != $url);
|
||||
|
||||
$result = call_user_func_array($callback, [$url, $arg]);
|
||||
return substr($matches[0], 0, $left) . $result . substr($matches[0], $right);
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert a plain text $url to HTML <a>
|
||||
*/
|
||||
public static function linkify(string $url): string
|
||||
{
|
||||
// It comes in special'd, so we unspecial it before passing to the stringifying
|
||||
// functions
|
||||
$url = htmlspecialchars_decode($url);
|
||||
|
||||
if (strpos($url, '@') !== false && strpos($url, ':') === false && ($email = filter_var($url, FILTER_VALIDATE_EMAIL)) !== false) {
|
||||
//url is an email address without the mailto: protocol
|
||||
$url = "mailto:{$email}";
|
||||
}
|
||||
|
||||
$attrs = ['href' => $url, 'title' => $url];
|
||||
|
||||
// TODO Check to see whether this is a known "attachment" URL.
|
||||
|
||||
// Whether to nofollow
|
||||
$nf = Common::config('nofollow', 'external');
|
||||
if ($nf == 'never') {
|
||||
$attrs['rel'] = 'external';
|
||||
} else {
|
||||
$attrs['rel'] = 'noopener nofollow external noreferrer';
|
||||
}
|
||||
|
||||
return HTML::html(['a' => ['attrs' => $attrs, $url]]);
|
||||
}
|
||||
|
||||
public static function tagLink(string $tag): string
|
||||
{
|
||||
$canonical = self::canonicalTag($tag);
|
||||
$url = Router::url('tag', ['tag' => $canonical]);
|
||||
return HTML::html(['a' => ['attrs' => ['href' => $url, 'title' => $tag, 'rel' => 'tag'], $tag]]);
|
||||
}
|
||||
|
||||
public static function canonicalTag(string $tag): string
|
||||
{
|
||||
return substr(self::slugify($tag), 0, 64);
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert $str to it's closest ASCII representation
|
||||
*/
|
||||
public static function slugify(string $str): string
|
||||
public static function slugify(string $str, int $length = 64): string
|
||||
{
|
||||
// php-intl is highly recommended...
|
||||
if (!function_exists('transliterator_transliterate')) {
|
||||
$str = preg_replace('/[^\pL\pN]/u', '', $str);
|
||||
$str = mb_convert_case($str, MB_CASE_LOWER, 'UTF-8');
|
||||
$str = substr($str, 0, 64);
|
||||
$str = substr($str, 0, $length);
|
||||
return $str;
|
||||
}
|
||||
$str = transliterator_transliterate('Any-Latin;' . // any charset to latin compatible
|
||||
@ -522,7 +303,7 @@ abstract class Formatting
|
||||
'Lower();' . // turn into lowercase
|
||||
'Latin-ASCII;', // get ASCII equivalents (ð to d for example)
|
||||
$str);
|
||||
return preg_replace('/[^\pL\pN]/u', '', $str);
|
||||
return substr(preg_replace('/[^\pL\pN]/u', '', $str), 0, $length);
|
||||
}
|
||||
|
||||
/**
|
||||
|
||||
Loading…
Reference in New Issue
Block a user