. * */ namespace Friendica\Content\Text; use DOMDocument; use DOMXPath; use Friendica\Content\Widget\ContactBlock; use Friendica\Core\Hook; use Friendica\Core\Renderer; use Friendica\Core\Search; use Friendica\DI; use Friendica\Model\Contact; use Friendica\Util\Network; use Friendica\Util\Strings; use Friendica\Util\XML; use League\HTMLToMarkdown\HtmlConverter; class HTML { /** * Search all instances of a specific HTML tag node in the provided DOM document and replaces them with BBCode text nodes. * * @see HTML::tagToBBCodeSub() */ private static function tagToBBCode(DOMDocument $doc, string $tag, array $attributes, string $startbb, string $endbb, bool $ignoreChildren = false) { do { $done = self::tagToBBCodeSub($doc, $tag, $attributes, $startbb, $endbb, $ignoreChildren); } while ($done); } /** * Search the first specific HTML tag node in the provided DOM document and replaces it with BBCode text nodes. * * @param DOMDocument $doc * @param string $tag HTML tag name * @param array $attributes Array of attributes to match and optionally use the value from * @param string $startbb BBCode tag opening * @param string $endbb BBCode tag closing * @param bool $ignoreChildren If set to false, the HTML tag children will be appended as text inside the BBCode tag * Otherwise, they will be entirely ignored. Useful for simple BBCode that draw their * inner value from an attribute value and disregard the tag children. * @return bool Whether a replacement was done */ private static function tagToBBCodeSub(DOMDocument $doc, string $tag, array $attributes, string $startbb, string $endbb, bool $ignoreChildren = false): bool { $savestart = str_replace('$', '\x01', $startbb); $replace = false; $xpath = new DOMXPath($doc); /** @var \DOMNode[] $list */ $list = $xpath->query("//" . $tag); foreach ($list as $node) { $attr = []; if ($node->attributes->length) { foreach ($node->attributes as $attribute) { $attr[$attribute->name] = $attribute->value; } } $replace = true; $startbb = $savestart; $i = 0; foreach ($attributes as $attribute => $value) { $startbb = str_replace('\x01' . ++$i, '$1', $startbb); if (strpos('*' . $startbb, '$1') > 0) { if ($replace && (@$attr[$attribute] != '')) { $startbb = preg_replace($value, $startbb, $attr[$attribute], -1, $count); // If nothing could be changed if ($count == 0) { $replace = false; } } else { $replace = false; } } else { if (@$attr[$attribute] != $value) { $replace = false; } } } if ($replace) { $StartCode = $doc->createTextNode($startbb); $EndCode = $doc->createTextNode($endbb); $node->parentNode->insertBefore($StartCode, $node); if (!$ignoreChildren && $node->hasChildNodes()) { /** @var \DOMNode $child */ foreach ($node->childNodes as $key => $child) { /* Remove empty text nodes at the start or at the end of the children list */ if ($key > 0 && $key < $node->childNodes->length - 1 || $child->nodeName != '#text' || trim($child->nodeValue)) { $newNode = $child->cloneNode(true); $node->parentNode->insertBefore($newNode, $node); } } } $node->parentNode->insertBefore($EndCode, $node); $node->parentNode->removeChild($node); } } return $replace; } /** * Converter for HTML to BBCode * * Made by: ike@piratenpartei.de * Originally made for the syncom project: http://wiki.piratenpartei.de/Syncom * https://github.com/annando/Syncom * * @param string $message * @param string $basepath * @return string * @throws \Friendica\Network\HTTPException\InternalServerErrorException */ public static function toBBCode(string $message, string $basepath = ''): string { DI::profiler()->startRecording('rendering'); $message = str_replace("\r", "", $message); $message = Strings::performWithEscapedBlocks($message, '#
#iUs', function ($message) { $message = str_replace( [ "
  • ", "

  • ", ], [ "
  • ", "
  • ", ], $message ); // remove namespaces $message = preg_replace('=<(\w+):(.+?)>=', '', $message); $message = preg_replace('==', '', $message); $doc = new DOMDocument(); $doc->preserveWhiteSpace = false; $message = mb_convert_encoding($message, 'HTML-ENTITIES', "UTF-8"); if (empty($message)) { return ''; } @$doc->loadHTML($message, LIBXML_HTML_NODEFDTD); XML::deleteNode($doc, 'style'); XML::deleteNode($doc, 'head'); XML::deleteNode($doc, 'title'); XML::deleteNode($doc, 'meta'); XML::deleteNode($doc, 'xml'); XML::deleteNode($doc, 'removeme'); $xpath = new DomXPath($doc); $list = $xpath->query("//pre"); foreach ($list as $node) { // Ensure to escape unescaped & - they will otherwise raise a warning $safe_value = preg_replace('/&(?!\w+;)/', '&', $node->nodeValue); $node->nodeValue = str_replace("\n", "\r", $safe_value); } $message = $doc->saveHTML(); $message = str_replace(["\n<", ">\n", "\r", "\n", "\xC3\x82\xC2\xA0"], ["<", ">", "
    ", " ", ""], $message); $message = preg_replace('= [\s]*=i', " ", $message); if (empty($message)) { return ''; } @$doc->loadHTML($message, LIBXML_HTML_NODEFDTD); self::tagToBBCode($doc, 'html', [], "", ""); self::tagToBBCode($doc, 'body', [], "", ""); // Outlook-Quote - Variant 1 self::tagToBBCode($doc, 'p', ['class' => 'MsoNormal', 'style' => 'margin-left:35.4pt'], '[quote]', '[/quote]'); // Outlook-Quote - Variant 2 self::tagToBBCode( $doc, 'div', ['style' => 'border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'], '[quote]', '[/quote]' ); // MyBB-Stuff self::tagToBBCode($doc, 'span', ['style' => 'text-decoration: underline;'], '[u]', '[/u]'); self::tagToBBCode($doc, 'span', ['style' => 'font-style: italic;'], '[i]', '[/i]'); self::tagToBBCode($doc, 'span', ['style' => 'font-weight: bold;'], '[b]', '[/b]'); /* self::node2BBCode($doc, 'font', array('face'=>'/([\w ]+)/', 'size'=>'/(\d+)/', 'color'=>'/(.+)/'), '[font=$1][size=$2][color=$3]', '[/color][/size][/font]'); self::node2BBCode($doc, 'font', array('size'=>'/(\d+)/', 'color'=>'/(.+)/'), '[size=$1][color=$2]', '[/color][/size]'); self::node2BBCode($doc, 'font', array('face'=>'/([\w ]+)/', 'size'=>'/(.+)/'), '[font=$1][size=$2]', '[/size][/font]'); self::node2BBCode($doc, 'font', array('face'=>'/([\w ]+)/', 'color'=>'/(.+)/'), '[font=$1][color=$3]', '[/color][/font]'); self::node2BBCode($doc, 'font', array('face'=>'/([\w ]+)/'), '[font=$1]', '[/font]'); self::node2BBCode($doc, 'font', array('size'=>'/(\d+)/'), '[size=$1]', '[/size]'); self::node2BBCode($doc, 'font', array('color'=>'/(.+)/'), '[color=$1]', '[/color]'); */ // Untested //self::node2BBCode($doc, 'span', array('style'=>'/.*font-size:\s*(.+?)[,;].*font-family:\s*(.+?)[,;].*color:\s*(.+?)[,;].*/'), '[size=$1][font=$2][color=$3]', '[/color][/font][/size]'); //self::node2BBCode($doc, 'span', array('style'=>'/.*font-size:\s*(\d+)[,;].*/'), '[size=$1]', '[/size]'); //self::node2BBCode($doc, 'span', array('style'=>'/.*font-size:\s*(.+?)[,;].*/'), '[size=$1]', '[/size]'); self::tagToBBCode($doc, 'span', ['style' => '/.*color:\s*(.+?)[,;].*/'], '[color="$1"]', '[/color]'); //self::node2BBCode($doc, 'span', array('style'=>'/.*font-family:\s*(.+?)[,;].*/'), '[font=$1]', '[/font]'); //self::node2BBCode($doc, 'div', array('style'=>'/.*font-family:\s*(.+?)[,;].*font-size:\s*(\d+?)pt.*/'), '[font=$1][size=$2]', '[/size][/font]'); //self::node2BBCode($doc, 'div', array('style'=>'/.*font-family:\s*(.+?)[,;].*font-size:\s*(\d+?)px.*/'), '[font=$1][size=$2]', '[/size][/font]'); //self::node2BBCode($doc, 'div', array('style'=>'/.*font-family:\s*(.+?)[,;].*/'), '[font=$1]', '[/font]'); // Importing the classes - interesting for importing of posts from third party networks that were exported from friendica // Test //self::node2BBCode($doc, 'span', array('class'=>'/([\w ]+)/'), '[class=$1]', '[/class]'); self::tagToBBCode($doc, 'span', ['class' => 'type-link'], '[class=type-link]', '[/class]'); self::tagToBBCode($doc, 'span', ['class' => 'type-video'], '[class=type-video]', '[/class]'); self::tagToBBCode($doc, 'strong', [], '[b]', '[/b]'); self::tagToBBCode($doc, 'em', [], '[i]', '[/i]'); self::tagToBBCode($doc, 'b', [], '[b]', '[/b]'); self::tagToBBCode($doc, 'i', [], '[i]', '[/i]'); self::tagToBBCode($doc, 'u', [], '[u]', '[/u]'); self::tagToBBCode($doc, 's', [], '[s]', '[/s]'); self::tagToBBCode($doc, 'del', [], '[s]', '[/s]'); self::tagToBBCode($doc, 'strike', [], '[s]', '[/s]'); self::tagToBBCode($doc, 'big', [], "[size=large]", "[/size]"); self::tagToBBCode($doc, 'small', [], "[size=small]", "[/size]"); self::tagToBBCode($doc, 'blockquote', [], '[quote]', '[/quote]'); self::tagToBBCode($doc, 'br', [], "\n", ''); self::tagToBBCode($doc, 'p', ['class' => 'MsoNormal'], "\n", ""); self::tagToBBCode($doc, 'div', ['class' => 'MsoNormal'], "\r", ""); self::tagToBBCode($doc, 'span', [], "", ""); self::tagToBBCode($doc, 'span', [], "", ""); self::tagToBBCode($doc, 'pre', [], "", ""); self::tagToBBCode($doc, 'div', [], "\r", "\r"); self::tagToBBCode($doc, 'p', [], "\n", "\n"); self::tagToBBCode($doc, 'ul', [], "[list]", "[/list]"); self::tagToBBCode($doc, 'ol', [], "[list=1]", "[/list]"); self::tagToBBCode($doc, 'li', [], "[*]", ""); self::tagToBBCode($doc, 'hr', [], "[hr]", ""); self::tagToBBCode($doc, 'table', [], "[table]", "[/table]"); self::tagToBBCode($doc, 'th', [], "[th]", "[/th]"); self::tagToBBCode($doc, 'tr', [], "[tr]", "[/tr]"); self::tagToBBCode($doc, 'td', [], "[td]", "[/td]"); self::tagToBBCode($doc, 'h1', [], "[h1]", "[/h1]"); self::tagToBBCode($doc, 'h2', [], "[h2]", "[/h2]"); self::tagToBBCode($doc, 'h3', [], "[h3]", "[/h3]"); self::tagToBBCode($doc, 'h4', [], "[h4]", "[/h4]"); self::tagToBBCode($doc, 'h5', [], "[h5]", "[/h5]"); self::tagToBBCode($doc, 'h6', [], "[h6]", "[/h6]"); self::tagToBBCode($doc, 'a', ['href' => '/mailto:(.+)/'], '[mail=$1]', '[/mail]'); self::tagToBBCode($doc, 'a', ['href' => '/(.+)/'], '[url=$1]', '[/url]'); self::tagToBBCode($doc, 'img', ['src' => '/(.+)/', 'alt' => '/(.+)/'], '[img=$1]$2', '[/img]', true); self::tagToBBCode($doc, 'img', ['src' => '/(.+)/', 'width' => '/(\d+)/', 'height' => '/(\d+)/'], '[img=$2x$3]$1', '[/img]', true); self::tagToBBCode($doc, 'img', ['src' => '/(.+)/'], '[img]$1', '[/img]', true); self::tagToBBCode($doc, 'video', ['src' => '/(.+)/'], '[video]$1', '[/video]', true); self::tagToBBCode($doc, 'audio', ['src' => '/(.+)/'], '[audio]$1', '[/audio]', true); // Backward compatibility, [iframe] support has been removed in version 2020.12 self::tagToBBCode($doc, 'iframe', ['src' => '/(.+)/'], '[url]$1', '[/url]', true); self::tagToBBCode($doc, 'key', [], '[code]', '[/code]'); self::tagToBBCode($doc, 'code', [], '[code]', '[/code]'); $message = $doc->saveHTML(); // I'm removing something really disturbing // Don't know exactly what it is $message = str_replace(chr(194) . chr(160), ' ', $message); $message = str_replace(" ", " ", $message); // removing multiple DIVs $message = preg_replace('=\r *\r=i', "\n", $message); $message = str_replace("\r", "\n", $message); Hook::callAll('html2bbcode', $message); $message = strip_tags($message); $message = html_entity_decode($message, ENT_QUOTES, 'UTF-8'); // remove quotes if they don't make sense $message = preg_replace('=\[/quote\][\s]*\[quote\]=i', "\n", $message); $message = preg_replace('=\[quote\]\s*=i', "[quote]", $message); $message = preg_replace('=\s*\[/quote\]=i', "[/quote]", $message); do { $oldmessage = $message; $message = str_replace("\n \n", "\n\n", $message); } while ($oldmessage != $message); do { $oldmessage = $message; $message = str_replace("\n\n\n", "\n\n", $message); } while ($oldmessage != $message); do { $oldmessage = $message; $message = str_replace( [ "[/size]\n\n", "\n[hr]", "[hr]\n", "\n[list", "[/list]\n", "\n[/", "[list]\n", "[list=1]\n", "\n[*]"], [ "[/size]\n", "[hr]", "[hr]", "[list", "[/list]", "[/", "[list]", "[list=1]", "[*]"], $message ); } while ($message != $oldmessage); $message = str_replace( ['[b][b]', '[/b][/b]', '[i][i]', '[/i][/i]'], ['[b]', '[/b]', '[i]', '[/i]'], $message ); // Handling Yahoo style of mails $message = str_replace('[hr][b]From:[/b]', '[quote][b]From:[/b]', $message); return $message; }); $message = preg_replace_callback( '#
    (.*)
    #iUs', function ($matches) { $prefix = '[code]'; if ($matches[1] != '') { $prefix = '[code=' . $matches[1] . ']'; } return $prefix . "\n" . html_entity_decode($matches[2]) . "\n" . '[/code]'; }, $message ); $message = trim($message); if ($basepath != '') { $message = self::qualifyURLs($message, $basepath); } DI::profiler()->stopRecording(); return $message; } /** * Sub function to complete incomplete URL * * @param array $matches Result of preg_replace_callback * @param string $basepath Basepath that is used to complete the URL * * @return string The expanded URL */ private static function qualifyURLsSub(array $matches, string $basepath): string { $base = parse_url($basepath); unset($base['query']); unset($base['fragment']); $link = $matches[0]; $url = $matches[1]; if (empty($url) || empty(parse_url($url))) { return $matches[0]; } $parts = array_merge($base, parse_url($url)); $url2 = Network::unparseURL($parts); return str_replace($url, $url2, $link); } /** * Complete incomplete URLs in BBCode * * @param string $body Body with URLs * @param string $basepath Base path that is used to complete the URL * * @return string Body with expanded URLs */ private static function qualifyURLs(string $body, string $basepath): string { $URLSearchString = "^\[\]"; $matches = ["/\[url\=([$URLSearchString]*)\].*?\[\/url\]/ism", "/\[url\]([$URLSearchString]*)\[\/url\]/ism", "/\[img\=[0-9]*x[0-9]*\](.*?)\[\/img\]/ism", "/\[img\](.*?)\[\/img\]/ism", "/\[zmg\=[0-9]*x[0-9]*\](.*?)\[\/img\]/ism", "/\[zmg\](.*?)\[\/zmg\]/ism", "/\[video\](.*?)\[\/video\]/ism", "/\[audio\](.*?)\[\/audio\]/ism", ]; foreach ($matches as $match) { $body = preg_replace_callback( $match, function ($match) use ($basepath) { return self::qualifyURLsSub($match, $basepath); }, $body ); } return $body; } private static function breakLines(string $line, int $level, int $wraplength = 75): string { if ($wraplength == 0) { $wraplength = 2000000; } $wraplen = $wraplength - $level; $newlines = []; do { $oldline = $line; $subline = substr($line, 0, $wraplen); $pos = strrpos($subline, ' '); if ($pos == 0) { $pos = strpos($line, ' '); } if (($pos > 0) && strlen($line) > $wraplen) { $newline = trim(substr($line, 0, $pos)); if ($level > 0) { $newline = str_repeat(">", $level) . ' ' . $newline; } $newlines[] = $newline . " "; $line = substr($line, $pos + 1); } } while ((strlen($line) > $wraplen) && !($oldline == $line)); if ($level > 0) { $line = str_repeat(">", $level) . ' ' . $line; } $newlines[] = $line; return implode("\n", $newlines); } private static function quoteLevel(string $message, int $wraplength = 75): string { $lines = explode("\n", $message); $newlines = []; $level = 0; foreach ($lines as $line) { $line = trim($line); $startquote = false; while (strpos("*" . $line, '[quote]') > 0) { $level++; $pos = strpos($line, '[quote]'); $line = substr($line, 0, $pos) . substr($line, $pos + 7); $startquote = true; } $currlevel = $level; while (strpos("*" . $line, '[/quote]') > 0) { $level--; if ($level < 0) { $level = 0; } $pos = strpos($line, '[/quote]'); $line = substr($line, 0, $pos) . substr($line, $pos + 8); } if (!$startquote || ($line != '')) { $newlines[] = self::breakLines($line, $currlevel, $wraplength); } } return implode("\n", $newlines); } private static function collectURLs(string $message): array { $pattern = '/(.*?)<\/a>/is'; preg_match_all($pattern, $message, $result, PREG_SET_ORDER); $urls = []; foreach ($result as $treffer) { $ignore = false; // A list of some links that should be ignored $list = ["/user/", "/tag/", "/group/", "/profile/", "/search?search=", "/search?tag=", "mailto:", "/u/", "/node/", "//plus.google.com/", "//twitter.com/"]; foreach ($list as $listitem) { if (strpos($treffer[1], $listitem) !== false) { $ignore = true; } } if ((strpos($treffer[1], "//twitter.com/") !== false) && (strpos($treffer[1], "/status/") !== false)) { $ignore = false; } if ((strpos($treffer[1], "//plus.google.com/") !== false) && (strpos($treffer[1], "/posts") !== false)) { $ignore = false; } if ((strpos($treffer[1], "//plus.google.com/") !== false) && (strpos($treffer[1], "/photos") !== false)) { $ignore = false; } $ignore = $ignore || strpos($treffer[1], '#') === 0; if (!$ignore) { $urls[$treffer[1]] = $treffer[1]; } } return $urls; } /** * @param string $html * @param int $wraplength Ensures individual lines aren't longer than this many characters. Doesn't break words. * @param bool $compact True: Completely strips image tags; False: Keeps image URLs * @return string */ public static function toPlaintext(string $html, int $wraplength = 75, bool $compact = false): string { DI::profiler()->startRecording('rendering'); $message = str_replace("\r", "", $html); $doc = new DOMDocument(); $doc->preserveWhiteSpace = false; $message = mb_convert_encoding($message, 'HTML-ENTITIES', "UTF-8"); if (empty($message)) { DI::profiler()->stopRecording(); return ''; } @$doc->loadHTML($message, LIBXML_HTML_NODEFDTD); $message = $doc->saveHTML(); // Remove eventual UTF-8 BOM $message = str_replace("\xC3\x82\xC2\xA0", "", $message); // Collecting all links $urls = self::collectURLs($message); if (empty($message)) { DI::profiler()->stopRecording(); return ''; } @$doc->loadHTML($message, LIBXML_HTML_NODEFDTD); self::tagToBBCode($doc, 'html', [], '', ''); self::tagToBBCode($doc, 'body', [], '', ''); if ($compact) { self::tagToBBCode($doc, 'blockquote', [], "»", "«"); } else { self::tagToBBCode($doc, 'blockquote', [], '[quote]', "[/quote]\n"); } self::tagToBBCode($doc, 'br', [], "\n", ''); self::tagToBBCode($doc, 'span', [], "", ""); self::tagToBBCode($doc, 'pre', [], "", ""); self::tagToBBCode($doc, 'div', [], "\r", "\r"); self::tagToBBCode($doc, 'p', [], "\n", "\n"); self::tagToBBCode($doc, 'li', [], "\n* ", "\n"); self::tagToBBCode($doc, 'hr', [], "\n" . str_repeat("-", 70) . "\n", ""); self::tagToBBCode($doc, 'tr', [], "\n", ""); self::tagToBBCode($doc, 'td', [], "\t", ""); self::tagToBBCode($doc, 'h1', [], "\n\n*", "*\n"); self::tagToBBCode($doc, 'h2', [], "\n\n*", "*\n"); self::tagToBBCode($doc, 'h3', [], "\n\n*", "*\n"); self::tagToBBCode($doc, 'h4', [], "\n\n*", "*\n"); self::tagToBBCode($doc, 'h5', [], "\n\n*", "*\n"); self::tagToBBCode($doc, 'h6', [], "\n\n*", "*\n"); if (!$compact) { self::tagToBBCode($doc, 'img', ['src' => '/(.+)/'], ' [img]$1', '[/img] '); } else { self::tagToBBCode($doc, 'img', ['src' => '/(.+)/'], ' ', ' '); } // Backward compatibility, [iframe] support has been removed in version 2020.12 self::tagToBBCode($doc, 'iframe', ['src' => '/(.+)/'], ' $1 ', ''); $message = $doc->saveHTML(); if (!$compact) { $message = str_replace("[img]", "", $message); $message = str_replace("[/img]", "", $message); } // was ersetze ich da? // Irgendein stoerrisches UTF-Zeug $message = str_replace(chr(194) . chr(160), ' ', $message); $message = str_replace(" ", " ", $message); // Aufeinanderfolgende DIVs $message = preg_replace('=\r *\r=i', "\n", $message); $message = str_replace("\r", "\n", $message); $message = strip_tags($message); $message = html_entity_decode($message, ENT_QUOTES, 'UTF-8'); if (!$compact && ($message != '')) { foreach ($urls as $id => $url) { if ($url != '' && strpos($message, $url) === false) { $message .= "\n" . $url . ' '; } } } $message = str_replace("\n«", "«\n", $message); $message = str_replace("»\n", "\n»", $message); do { $oldmessage = $message; $message = str_replace("\n\n\n", "\n\n", $message); } while ($oldmessage != $message); $message = self::quoteLevel(trim($message), $wraplength); DI::profiler()->stopRecording(); return trim($message); } /** * Converts provided HTML code to Markdown. The hardwrap parameter maximizes * compatibility with Diaspora in spite of the Markdown standards. * * @param string $html * @return string */ public static function toMarkdown(string $html): string { DI::profiler()->startRecording('rendering'); $converter = new HtmlConverter(['hard_break' => true]); $markdown = $converter->convert($html); DI::profiler()->stopRecording(); return $markdown; } /** * Convert video HTML to BBCode tags * * @param string $s * @return string */ public static function toBBCodeVideo(string $s): string { $s = preg_replace( '#]+>(.*?)https?://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+)(.*?)#ism', '[youtube]$2[/youtube]', $s ); $s = preg_replace( '#](.*?)https?://www.youtube.com/embed/([A-Za-z0-9\-_=]+)(.*?)#ism', '[youtube]$2[/youtube]', $s ); $s = preg_replace( '#](.*?)https?://player.vimeo.com/video/([0-9]+)(.*?)#ism', '[vimeo]$2[/vimeo]', $s ); return $s; } /** * transform link href and img src from relative to absolute * * @param string $text * @param string $base base url * @return string */ public static function relToAbs(string $text, string $base): string { if (empty($base)) { return $text; } $base = rtrim($base, '/'); $base2 = $base . "/"; // Replace links $pattern = "/]*) href=\"(?!http|https|\/)([^\"]*)\"/"; $replace = " DI::l10n()->t('Loading more entries...'), 'end' => DI::l10n()->t('The end') ]); } /** * Format contacts as picture links or as text links * * @param array $contact Array with contacts which contains an array with * int 'id' => The ID of the contact * int 'uid' => The user ID of the user who owns this data * string 'name' => The name of the contact * string 'url' => The url to the profile page of the contact * string 'addr' => The webbie of the contact (e.g.) username@friendica.com * string 'network' => The network to which the contact belongs to * string 'thumb' => The contact picture * string 'click' => js code which is performed when clicking on the contact * @param boolean $redirect If true try to use the redir url if it's possible * @param string $class CSS class for the * @param boolean $textmode If true display the contacts as text links * if false display the contacts as picture links * @return string Formatted html * @throws \Friendica\Network\HTTPException\InternalServerErrorException * @throws \ImagickException */ public static function micropro(array $contact, bool $redirect = false, string $class = '', bool $textmode = false): string { // Use the contact URL if no address is available if (empty($contact['addr'])) { $contact["addr"] = $contact["url"]; } $url = $contact['url']; $sparkle = ''; $redir = false; if ($redirect) { $url = Contact::magicLinkByContact($contact); if (strpos($url, 'redir/') === 0) { $sparkle = ' sparkle'; } } // If there is some js available we don't need the url if (!empty($contact['click'])) { $url = ''; } return Renderer::replaceMacros(Renderer::getMarkupTemplate($textmode ? 'micropro_txt.tpl' : 'micropro_img.tpl'), [ '$click' => $contact['click'] ?? '', '$class' => $class, '$url' => $url, '$photo' => Contact::getThumb($contact), '$name' => $contact['name'], 'title' => $contact['name'] . ' [' . $contact['addr'] . ']', '$parkle' => $sparkle, '$redir' => $redir ]); } /** * Search box. * * @param string $s Search query. * @param string $id HTML id * @param bool $aside Display the search widgit aside. * * @return string Formatted HTML. * @throws \Exception */ public static function search(string $s, string $id = 'search-box', bool $aside = true): string { $mode = 'text'; if (strpos($s, '#') === 0) { $mode = 'tag'; } $save_label = $mode === 'text' ? DI::l10n()->t('Save') : DI::l10n()->t('Follow'); $values = [ '$s' => $s, '$q' => urlencode($s), '$id' => $id, '$search_label' => DI::l10n()->t('Search'), '$save_label' => $save_label, '$search_hint' => DI::l10n()->t('@name, !forum, #tags, content'), '$mode' => $mode, '$return_url' => urlencode(Search::getSearchPath($s)), ]; if (!$aside) { $values['$search_options'] = [ 'fulltext' => DI::l10n()->t('Full Text'), 'tags' => DI::l10n()->t('Tags'), 'contacts' => DI::l10n()->t('Contacts') ]; if (DI::config()->get('system', 'poco_local_search')) { $values['$searchoption']['forums'] = DI::l10n()->t('Forums'); } } return Renderer::replaceMacros(Renderer::getMarkupTemplate('searchbox.tpl'), $values); } /** * Replace naked text hyperlink with HTML formatted hyperlink * * @param string $s * @return string */ public static function toLink(string $s): string { $s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\'\%\$\!\+]*)/", ' $1', $s); $s = preg_replace("/\<(.*?)(src|href)=(.*?)\&\;(.*?)\>/ism", '<$1$2=$3&$4>', $s); return $s; } /** * Given a HTML text and a set of filtering reasons, adds a content hiding header with the provided reasons * * Reasons are expected to have been translated already. * * @param string $html * @param array $reasons * @return string * @throws \Friendica\Network\HTTPException\InternalServerErrorException */ public static function applyContentFilter(string $html, array $reasons): string { if (count($reasons)) { $tpl = Renderer::getMarkupTemplate('wall/content_filter.tpl'); $html = Renderer::replaceMacros($tpl, [ '$reasons' => $reasons, '$rnd' => Strings::getRandomHex(8), '$openclose' => DI::l10n()->t('Click to open/close'), '$html' => $html ]); } return $html; } /** * replace html amp entity with amp char * @param string $s * @return string */ public static function unamp(string $s): string { return str_replace('&', '&', $s); } /** * Clean an HTML text for potentially harmful code * * @param string $text * @param array $allowedIframeDomains List of allowed iframe source domains without the scheme * @return string */ public static function purify(string $text, array $allowedIframeDomains = []): string { // Allows cid: URL scheme \HTMLPurifier_URISchemeRegistry::instance()->register('cid', new HTMLPurifier_URIScheme_cid()); $config = \HTMLPurifier_HTML5Config::createDefault(); $config->set('HTML.Doctype', 'HTML5'); // Used to remove iframe with src attribute filtered out $config->set('AutoFormat.RemoveEmpty', true); $config->set('HTML.SafeIframe', true); array_walk($allowedIframeDomains, function (&$domain) { // Allow the domain and all its eventual sub-domains $domain = '(?:(?!-)[A-Za-z0-9-]{1,63}(?set('URI.SafeIframeRegexp', '%^https://(?: ' . implode('|', $allowedIframeDomains) . ' ) (?:/|$) # Prevents bogus domains like youtube.com.fake.tld %xi' ); $config->set('Attr.AllowedRel', [ 'noreferrer' => true, 'noopener' => true, 'tag' => true, ]); $config->set('Attr.AllowedFrameTargets', [ '_blank' => true, ]); $config->set('AutoFormat.RemoveEmpty.Predicate', [ 'colgroup' => [], // | 'th' => [], // | 'td' => [], // | 'iframe' => ['src'], // ↳ Default HTMLPurify values 'i' => ['class'], // Allows forkawesome icons ]); // Uncomment to debug HTMLPurifier behavior //$config->set('Core.CollectErrors', true); //$config->set('Core.MaintainLineNumbers', true); $HTMLPurifier = new \HTMLPurifier($config); $text = $HTMLPurifier->purify($text); /** @var \HTMLPurifier_ErrorCollector $errorCollector */ // Uncomment to debug HTML Purifier behavior //$errorCollector = $HTMLPurifier->context->get('ErrorCollector'); //var_dump($errorCollector->getRaw()); return $text; } }