From 4b842b20cecb198baccdeac76916df367da0400a Mon Sep 17 00:00:00 2001 From: Maryana Rozhankivska Date: Mon, 24 Feb 2014 19:13:54 +0200 Subject: fix of #486 - import issue --- inc/3rdparty/makefulltextfeedHelpers.php | 355 +++++++++++++++++++++++++++++++ 1 file changed, 355 insertions(+) create mode 100755 inc/3rdparty/makefulltextfeedHelpers.php (limited to 'inc/3rdparty/makefulltextfeedHelpers.php') diff --git a/inc/3rdparty/makefulltextfeedHelpers.php b/inc/3rdparty/makefulltextfeedHelpers.php new file mode 100755 index 00000000..1c11b8f6 --- /dev/null +++ b/inc/3rdparty/makefulltextfeedHelpers.php @@ -0,0 +1,355 @@ + 'feedwriter/FeedWriter.php', + 'FeedItem' => 'feedwriter/FeedItem.php', + // Include ContentExtractor and Readability for identifying and extracting content from URLs + 'ContentExtractor' => 'content-extractor/ContentExtractor.php', + 'SiteConfig' => 'content-extractor/SiteConfig.php', + 'Readability' => 'readability/Readability.php', + // Include Humble HTTP Agent to allow parallel requests and response caching + 'HumbleHttpAgent' => 'humble-http-agent/HumbleHttpAgent.php', + 'SimplePie_HumbleHttpAgent' => 'humble-http-agent/SimplePie_HumbleHttpAgent.php', + 'CookieJar' => 'humble-http-agent/CookieJar.php', + // Include Zend Cache to improve performance (cache results) + 'Zend_Cache' => 'Zend/Cache.php', + // Language detect + 'Text_LanguageDetect' => 'language-detect/LanguageDetect.php', + // HTML5 Lib + 'HTML5_Parser' => 'html5/Parser.php', + // htmLawed - used if XSS filter is enabled (xss_filter) + 'htmLawed' => 'htmLawed/htmLawed.php' + ); + if (isset($mapping[$class_name])) { + debug("** Loading class $class_name ({$mapping[$class_name]})"); + require $dir.$mapping[$class_name]; + return true; + } else { + return false; + } +} +spl_autoload_register('autoload'); +require dirname(__FILE__).'/libraries/simplepie/autoloader.php'; + + +class DummySingleItemFeed { + public $item; + function __construct($url) { $this->item = new DummySingleItem($url); } + public function get_title() { return ''; } + public function get_description() { return 'Content extracted from '.$this->item->url; } + public function get_link() { return $this->item->url; } + public function get_language() { return false; } + public function get_image_url() { return false; } + public function get_items($start=0, $max=1) { return array(0=>$this->item); } +} +class DummySingleItem { + public $url; + function __construct($url) { $this->url = $url; } + public function get_permalink() { return $this->url; } + public function get_title() { return null; } + public function get_date($format='') { return false; } + public function get_author($key=0) { return null; } + public function get_authors() { return null; } + public function get_description() { return ''; } + public function get_enclosure($key=0, $prefer=null) { return null; } + public function get_enclosures() { return null; } + public function get_categories() { return null; } +} + +/////////////////////////////// +// HELPER FUNCTIONS +/////////////////////////////// + +function url_allowed($url) { + global $options; + if (!empty($options->allowed_urls)) { + $allowed = false; + foreach ($options->allowed_urls as $allowurl) { + if (stristr($url, $allowurl) !== false) { + $allowed = true; + break; + } + } + if (!$allowed) return false; + } else { + foreach ($options->blocked_urls as $blockurl) { + if (stristr($url, $blockurl) !== false) { + return false; + } + } + } + return true; +} + +////////////////////////////////////////////// +// Convert $html to UTF8 +// (uses HTTP headers and HTML to find encoding) +// adapted from http://stackoverflow.com/questions/910793/php-detect-encoding-and-make-everything-utf-8 +////////////////////////////////////////////// +function convert_to_utf8($html, $header=null) +{ + $encoding = null; + if ($html || $header) { + if (is_array($header)) $header = implode("\n", $header); + if (!$header || !preg_match_all('/^Content-Type:\s+([^;]+)(?:;\s*charset=["\']?([^;"\'\n]*))?/im', $header, $match, PREG_SET_ORDER)) { + // error parsing the response + debug('Could not find Content-Type header in HTTP response'); + } else { + $match = end($match); // get last matched element (in case of redirects) + if (isset($match[2])) $encoding = trim($match[2], "\"' \r\n\0\x0B\t"); + } + // TODO: check to see if encoding is supported (can we convert it?) + // If it's not, result will be empty string. + // For now we'll check for invalid encoding types returned by some sites, e.g. 'none' + // Problem URL: http://facta.co.jp/blog/archives/20111026001026.html + if (!$encoding || $encoding == 'none') { + // search for encoding in HTML - only look at the first 50000 characters + // Why 50000? See, for example, http://www.lemonde.fr/festival-de-cannes/article/2012/05/23/deux-cretes-en-goguette-sur-la-croisette_1705732_766360.html + // TODO: improve this so it looks at smaller chunks first + $html_head = substr($html, 0, 50000); + if (preg_match('/^<\?xml\s+version=(?:"[^"]*"|\'[^\']*\')\s+encoding=("[^"]*"|\'[^\']*\')/s', $html_head, $match)) { + $encoding = trim($match[1], '"\''); + } elseif (preg_match('/]+)/i', $html_head, $match)) { + $encoding = trim($match[1]); + } elseif (preg_match_all('/]+)>/i', $html_head, $match)) { + foreach ($match[1] as $_test) { + if (preg_match('/charset=["\']?([^"\']+)/i', $_test, $_m)) { + $encoding = trim($_m[1]); + break; + } + } + } + } + if (isset($encoding)) $encoding = trim($encoding); + // trim is important here! + if (!$encoding || (strtolower($encoding) == 'iso-8859-1')) { + // replace MS Word smart qutoes + $trans = array(); + $trans[chr(130)] = '‚'; // Single Low-9 Quotation Mark + $trans[chr(131)] = 'ƒ'; // Latin Small Letter F With Hook + $trans[chr(132)] = '„'; // Double Low-9 Quotation Mark + $trans[chr(133)] = '…'; // Horizontal Ellipsis + $trans[chr(134)] = '†'; // Dagger + $trans[chr(135)] = '‡'; // Double Dagger + $trans[chr(136)] = 'ˆ'; // Modifier Letter Circumflex Accent + $trans[chr(137)] = '‰'; // Per Mille Sign + $trans[chr(138)] = 'Š'; // Latin Capital Letter S With Caron + $trans[chr(139)] = '‹'; // Single Left-Pointing Angle Quotation Mark + $trans[chr(140)] = 'Œ'; // Latin Capital Ligature OE + $trans[chr(145)] = '‘'; // Left Single Quotation Mark + $trans[chr(146)] = '’'; // Right Single Quotation Mark + $trans[chr(147)] = '“'; // Left Double Quotation Mark + $trans[chr(148)] = '”'; // Right Double Quotation Mark + $trans[chr(149)] = '•'; // Bullet + $trans[chr(150)] = '–'; // En Dash + $trans[chr(151)] = '—'; // Em Dash + $trans[chr(152)] = '˜'; // Small Tilde + $trans[chr(153)] = '™'; // Trade Mark Sign + $trans[chr(154)] = 'š'; // Latin Small Letter S With Caron + $trans[chr(155)] = '›'; // Single Right-Pointing Angle Quotation Mark + $trans[chr(156)] = 'œ'; // Latin Small Ligature OE + $trans[chr(159)] = 'Ÿ'; // Latin Capital Letter Y With Diaeresis + $html = strtr($html, $trans); + } + if (!$encoding) { + debug('No character encoding found, so treating as UTF-8'); + $encoding = 'utf-8'; + } else { + debug('Character encoding: '.$encoding); + if (strtolower($encoding) != 'utf-8') { + debug('Converting to UTF-8'); + $html = SimplePie_Misc::change_encoding($html, $encoding, 'utf-8'); + /* + if (function_exists('iconv')) { + // iconv appears to handle certain character encodings better than mb_convert_encoding + $html = iconv($encoding, 'utf-8', $html); + } else { + $html = mb_convert_encoding($html, 'utf-8', $encoding); + } + */ + } + } + } + return $html; +} + +function makeAbsolute($base, $elem) { + $base = new SimplePie_IRI($base); + // remove '//' in URL path (used to prevent URLs from resolving properly) + // TODO: check if this is still the case + if (isset($base->path)) $base->path = preg_replace('!//+!', '/', $base->path); + foreach(array('a'=>'href', 'img'=>'src') as $tag => $attr) { + $elems = $elem->getElementsByTagName($tag); + for ($i = $elems->length-1; $i >= 0; $i--) { + $e = $elems->item($i); + //$e->parentNode->replaceChild($articleContent->ownerDocument->createTextNode($e->textContent), $e); + makeAbsoluteAttr($base, $e, $attr); + } + if (strtolower($elem->tagName) == $tag) makeAbsoluteAttr($base, $elem, $attr); + } +} +function makeAbsoluteAttr($base, $e, $attr) { + if ($e->hasAttribute($attr)) { + // Trim leading and trailing white space. I don't really like this but + // unfortunately it does appear on some sites. e.g. + $url = trim(str_replace('%20', ' ', $e->getAttribute($attr))); + $url = str_replace(' ', '%20', $url); + if (!preg_match('!https?://!i', $url)) { + if ($absolute = SimplePie_IRI::absolutize($base, $url)) { + $e->setAttribute($attr, $absolute); + } + } + } +} +function makeAbsoluteStr($base, $url) { + $base = new SimplePie_IRI($base); + // remove '//' in URL path (causes URLs not to resolve properly) + if (isset($base->path)) $base->path = preg_replace('!//+!', '/', $base->path); + if (preg_match('!^https?://!i', $url)) { + // already absolute + return $url; + } else { + if ($absolute = SimplePie_IRI::absolutize($base, $url)) { + return $absolute; + } + return false; + } +} +// returns single page response, or false if not found +function getSinglePage($item, $html, $url) { + global $http, $extractor; + debug('Looking for site config files to see if single page link exists'); + $site_config = $extractor->buildSiteConfig($url, $html); + $splink = null; + if (!empty($site_config->single_page_link)) { + $splink = $site_config->single_page_link; + } elseif (!empty($site_config->single_page_link_in_feed)) { + // single page link xpath is targeted at feed + $splink = $site_config->single_page_link_in_feed; + // so let's replace HTML with feed item description + $html = $item->get_description(); + } + if (isset($splink)) { + // Build DOM tree from HTML + $readability = new Readability($html, $url); + $xpath = new DOMXPath($readability->dom); + // Loop through single_page_link xpath expressions + $single_page_url = null; + foreach ($splink as $pattern) { + $elems = @$xpath->evaluate($pattern, $readability->dom); + if (is_string($elems)) { + $single_page_url = trim($elems); + break; + } elseif ($elems instanceof DOMNodeList && $elems->length > 0) { + foreach ($elems as $item) { + if ($item instanceof DOMElement && $item->hasAttribute('href')) { + $single_page_url = $item->getAttribute('href'); + break 2; + } elseif ($item instanceof DOMAttr && $item->value) { + $single_page_url = $item->value; + break 2; + } + } + } + } + // If we've got URL, resolve against $url + if (isset($single_page_url) && ($single_page_url = makeAbsoluteStr($url, $single_page_url))) { + // check it's not what we have already! + if ($single_page_url != $url) { + // it's not, so let's try to fetch it... + $_prev_ref = $http->referer; + $http->referer = $single_page_url; + if (($response = $http->get($single_page_url, true)) && $response['status_code'] < 300) { + $http->referer = $_prev_ref; + return $response; + } + $http->referer = $_prev_ref; + } + } + } + return false; +} + +// based on content-type http header, decide what to do +// param: HTTP headers string +// return: array with keys: 'mime', 'type', 'subtype', 'action', 'name' +// e.g. array('mime'=>'image/jpeg', 'type'=>'image', 'subtype'=>'jpeg', 'action'=>'link', 'name'=>'Image') +function get_mime_action_info($headers) { + global $options; + // check if action defined for returned Content-Type + $info = array(); + if (preg_match('!^Content-Type:\s*(([-\w]+)/([-\w\+]+))!im', $headers, $match)) { + // look for full mime type (e.g. image/jpeg) or just type (e.g. image) + // match[1] = full mime type, e.g. image/jpeg + // match[2] = first part, e.g. image + // match[3] = last part, e.g. jpeg + $info['mime'] = strtolower(trim($match[1])); + $info['type'] = strtolower(trim($match[2])); + $info['subtype'] = strtolower(trim($match[3])); + foreach (array($info['mime'], $info['type']) as $_mime) { + if (isset($options->content_type_exc[$_mime])) { + $info['action'] = $options->content_type_exc[$_mime]['action']; + $info['name'] = $options->content_type_exc[$_mime]['name']; + break; + } + } + } + return $info; +} + +function remove_url_cruft($url) { + // remove google analytics for the time being + // regex adapted from http://navitronic.co.uk/2010/12/removing-google-analytics-cruft-from-urls/ + // https://gist.github.com/758177 + return preg_replace('/(\?|\&)utm_[a-z]+=[^\&]+/', '', $url); +} + +function make_substitutions($string) { + if ($string == '') return $string; + global $item, $effective_url; + $string = str_replace('{url}', htmlspecialchars($item->get_permalink()), $string); + $string = str_replace('{effective-url}', htmlspecialchars($effective_url), $string); + return $string; +} + +function get_cache() { + global $options, $valid_key; + static $cache = null; + if ($cache === null) { + $frontendOptions = array( + 'lifetime' => 10*60, // cache lifetime of 10 minutes + 'automatic_serialization' => false, + 'write_control' => false, + 'automatic_cleaning_factor' => $options->cache_cleanup, + 'ignore_user_abort' => false + ); + $backendOptions = array( + 'cache_dir' => ($valid_key) ? $options->cache_dir.'/rss-with-key/' : $options->cache_dir.'/rss/', // directory where to put the cache files + 'file_locking' => false, + 'read_control' => true, + 'read_control_type' => 'strlen', + 'hashed_directory_level' => $options->cache_directory_level, + 'hashed_directory_perm' => 0777, + 'cache_file_perm' => 0664, + 'file_name_prefix' => 'ff' + ); + // getting a Zend_Cache_Core object + $cache = Zend_Cache::factory('Core', 'File', $frontendOptions, $backendOptions); + } + return $cache; +} + +function debug($msg) { + global $debug_mode; + if ($debug_mode) { + echo '* ',$msg,"\n"; + ob_flush(); + flush(); + } +} -- cgit v1.2.3