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Diffstat (limited to 'website/new/rss-parser.php')
| -rwxr-xr-x | website/new/rss-parser.php | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/website/new/rss-parser.php b/website/new/rss-parser.php new file mode 100755 index 00000000..cfe1637d --- /dev/null +++ b/website/new/rss-parser.php @@ -0,0 +1,221 @@ +<?php +/* + ====================================================================== + lastRSS 0.9.1 + + Simple yet powerfull PHP class to parse RSS files. + + by Vojtech Semecky, webmaster @ oslab . net + + Latest version, features, manual and examples: + http://lastrss.oslab.net/ + + ---------------------------------------------------------------------- + LICENSE + + This program is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License (GPL) + as published by the Free Software Foundation; either version 2 + of the License, or (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + To read the license please visit http://www.gnu.org/copyleft/gpl.html + ====================================================================== +*/ + +/** +* lastRSS +* Simple yet powerfull PHP class to parse RSS files. +*/ +class lastRSS { + // ------------------------------------------------------------------- + // Public properties + // ------------------------------------------------------------------- + var $default_cp = 'UTF-8'; + var $CDATA = 'nochange'; + var $cp = ''; + var $items_limit = 0; + var $stripHTML = False; + var $date_format = ''; + + // ------------------------------------------------------------------- + // Private variables + // ------------------------------------------------------------------- + var $channeltags = array ('title', 'link', 'description', 'language', 'copyright', 'managingEditor', 'webMaster', 'lastBuildDate', 'rating', 'docs'); + var $itemtags = array('title', 'link', 'description', 'author', 'category', 'comments', 'enclosure', 'guid', 'pubDate', 'source'); + var $imagetags = array('title', 'url', 'link', 'width', 'height'); + var $textinputtags = array('title', 'description', 'name', 'link'); + + // ------------------------------------------------------------------- + // Parse RSS file and returns associative array. + // ------------------------------------------------------------------- + function Get ($rss_url) { + // If CACHE ENABLED + if ($this->cache_dir != '') { + $cache_file = $this->cache_dir . '/rsscache_' . md5($rss_url); + $timedif = @(time() - filemtime($cache_file)); + if ($timedif < $this->cache_time) { + // cached file is fresh enough, return cached array + $result = unserialize(join('', file($cache_file))); + // set 'cached' to 1 only if cached file is correct + if ($result) $result['cached'] = 1; + } else { + // cached file is too old, create new + $result = $this->Parse($rss_url); + $serialized = serialize($result); + if ($f = @fopen($cache_file, 'w')) { + fwrite ($f, $serialized, strlen($serialized)); + fclose($f); + } + if ($result) $result['cached'] = 0; + } + } + // If CACHE DISABLED >> load and parse the file directly + else { + $result = $this->Parse($rss_url); + if ($result) $result['cached'] = 0; + } + // return result + return $result; + } + + // ------------------------------------------------------------------- + // Modification of preg_match(); return trimed field with index 1 + // from 'classic' preg_match() array output + // ------------------------------------------------------------------- + function my_preg_match ($pattern, $subject) { + // start regullar expression + preg_match($pattern, $subject, $out); + + // if there is some result... process it and return it + if(isset($out[1])) { + // Process CDATA (if present) + if ($this->CDATA == 'content') { // Get CDATA content (without CDATA tag) + $out[1] = strtr($out[1], array('<![CDATA['=>'', ']]>'=>'')); + } elseif ($this->CDATA == 'strip') { // Strip CDATA + $out[1] = strtr($out[1], array('<![CDATA['=>'', ']]>'=>'')); + } + + // If code page is set convert character encoding to required + if ($this->cp != '') + //$out[1] = $this->MyConvertEncoding($this->rsscp, $this->cp, $out[1]); + $out[1] = iconv($this->rsscp, $this->cp.'//TRANSLIT', $out[1]); + // Return result + return trim($out[1]); + } else { + // if there is NO result, return empty string + return ''; + } + } + + // ------------------------------------------------------------------- + // Replace HTML entities &something; by real characters + // ------------------------------------------------------------------- + function unhtmlentities ($string) { + // Get HTML entities table + $trans_tbl = get_html_translation_table (HTML_ENTITIES, ENT_QUOTES); + // Flip keys<==>values + $trans_tbl = array_flip ($trans_tbl); + // Add support for ' entity (missing in HTML_ENTITIES) + $trans_tbl += array(''' => "'"); + // Replace entities by values + return strtr ($string, $trans_tbl); + } + + // ------------------------------------------------------------------- + // Parse() is private method used by Get() to load and parse RSS file. + // Don't use Parse() in your scripts - use Get($rss_file) instead. + // ------------------------------------------------------------------- + function Parse ($rss_url) { + // Open and load RSS file + if ($f = @fopen($rss_url, 'r')) { + $rss_content = ''; + while (!feof($f)) { + $rss_content .= fgets($f, 4096); + } + fclose($f); + + // Parse document encoding + $result['encoding'] = $this->my_preg_match("'encoding=[\'\"](.*?)[\'\"]'si", $rss_content); + // if document codepage is specified, use it + if ($result['encoding'] != '') + { $this->rsscp = $result['encoding']; } // This is used in my_preg_match() + // otherwise use the default codepage + else + { $this->rsscp = $this->default_cp; } // This is used in my_preg_match() + + // Parse CHANNEL info + preg_match("'<channel.*?>(.*?)</channel>'si", $rss_content, $out_channel); + foreach($this->channeltags as $channeltag) + { + $temp = $this->my_preg_match("'<$channeltag.*?>(.*?)</$channeltag>'si", $out_channel[1]); + if ($temp != '') $result[$channeltag] = $temp; // Set only if not empty + } + // If date_format is specified and lastBuildDate is valid + if ($this->date_format != '' && ($timestamp = strtotime($result['lastBuildDate'])) !==-1) { + // convert lastBuildDate to specified date format + $result['lastBuildDate'] = date($this->date_format, $timestamp); + } + + // Parse TEXTINPUT info + preg_match("'<textinput(|[^>]*[^/])>(.*?)</textinput>'si", $rss_content, $out_textinfo); + // This a little strange regexp means: + // Look for tag <textinput> with or without any attributes, but skip truncated version <textinput /> (it's not beggining tag) + if (isset($out_textinfo[2])) { + foreach($this->textinputtags as $textinputtag) { + $temp = $this->my_preg_match("'<$textinputtag.*?>(.*?)</$textinputtag>'si", $out_textinfo[2]); + if ($temp != '') $result['textinput_'.$textinputtag] = $temp; // Set only if not empty + } + } + // Parse IMAGE info + preg_match("'<image.*?>(.*?)</image>'si", $rss_content, $out_imageinfo); + if (isset($out_imageinfo[1])) { + foreach($this->imagetags as $imagetag) { + $temp = $this->my_preg_match("'<$imagetag.*?>(.*?)</$imagetag>'si", $out_imageinfo[1]); + if ($temp != '') $result['image_'.$imagetag] = $temp; // Set only if not empty + } + } + // Parse ITEMS + preg_match_all("'<item(| .*?)>(.*?)</item>'si", $rss_content, $items); + $rss_items = $items[2]; + $i = 0; + $result['items'] = array(); // create array even if there are no items + foreach($rss_items as $rss_item) { + // If number of items is lower then limit: Parse one item + if ($i < $this->items_limit || $this->items_limit == 0) { + foreach($this->itemtags as $itemtag) { + $temp = $this->my_preg_match("'<$itemtag.*?>(.*?)</$itemtag>'si", $rss_item); + if ($temp != '') $result['items'][$i][$itemtag] = $temp; // Set only if not empty + } + // Strip HTML tags and other bullshit from DESCRIPTION + if ($this->stripHTML && $result['items'][$i]['description']) + $result['items'][$i]['description'] = strip_tags($this->unhtmlentities(strip_tags($result['items'][$i]['description']))); + // Strip HTML tags and other bullshit from TITLE + if ($this->stripHTML && $result['items'][$i]['title']) + $result['items'][$i]['title'] = strip_tags($this->unhtmlentities(strip_tags($result['items'][$i]['title']))); + // If date_format is specified and pubDate is valid + if ($this->date_format != '' && ($timestamp = strtotime($result['items'][$i]['pubDate'])) !==-1) { + // convert pubDate to specified date format + $result['items'][$i]['pubDate'] = date($this->date_format, $timestamp); + } + // Item counter + $i++; + } + } + + $result['items_count'] = $i; + return $result; + } + else // Error in opening return False + { + return False; + } + } +} + +?> + |