PHP实例开发源码—云计算导航源码.zip

<?php /**************************************************** SIMPLEPIE A PHP-Based RSS and Atom Feed Framework Takes the hard work out of managing a complete RSS/Atom solution. Version: 1.0 Beta 2 Updated: 30 May 2006 Copyright: 2004-2006 Ryan Parman, Geoffrey Sneddon http://simplepie.org ***************************************************** LICENSE: GNU Lesser General Public License 2.1 (LGPL) http://creativecommons.org/licenses/LGPL/2.1/ ***************************************************** Please submit all bug reports and feature requests to the SimplePie forums. http://simplepie.org/support/ ****************************************************/ class SimplePie { // SimplePie Information var $name = 'SimplePie'; var $version = '1.0 Beta 2'; var $build = '20060530'; var $url = 'http://simplepie.org/'; var $useragent; var $linkback; // Run-time Variables var $rss_url; var $encoding; var $xml_dump = false; var $caching = true; var $max_minutes = 60; var $cache_location = './data/simplepie_cache'; var $bypass_image_hotlink = 'i'; var $bypass_image_hotlink_page = false; var $replace_headers = false; var $remove_div = true; var $order_by_date = true; var $strip_ads = false; var $strip_htmltags = 'blink,body,doctype,embed,font,form,frame,frameset,html,iframe,input,marquee,meta,noscript,object,param,script,style'; var $strip_attributes = 'class,id,style,onclick,onmouseover,onmouseout,onfocus,onblur'; var $encode_instead_of_strip = false; // RSS Auto-Discovery Variables var $parsed_url; var $local = array(); var $elsewhere = array(); // XML Parsing Variables var $xml; var $tagName; var $insideItem; var $insideChannel; var $insideImage; var $insideAuthor; var $itemNumber = 0; var $authorNumber = 0; var $categoryNumber = 0; var $enclosureNumber = 0; var $linkNumber = 0; var $itemLinkNumber = 0; var $data = false; var $attribs; var $xmldata; var $feed_xmlbase; var $item_xmlbase; var $xhtml_prefix; /**************************************************** CONSTRUCTOR Initiates a couple of variables. Accepts feed_url, cache_location, and cache_max_minutes. ****************************************************/ function SimplePie($feed_url = null, $cache_location = null, $cache_max_minutes = null) { $this->useragent = $this->name . '/' . $this->version . ' (Feed Parser; ' . $this->url . '; Allow like Gecko) Build/' . $this->build; $this->linkback = '<a href="' . $this->url . '" title="' . $this->name . ' ' . $this->version . '">' . $this->name . '</a>'; if (!is_null($feed_url)) { $this->feed_url($feed_url); } if (!is_null($cache_location)) { $this->cache_location($cache_location); } if (!is_null($cache_max_minutes)) { $this->cache_max_minutes($cache_max_minutes); } if (!is_null($feed_url)) { return $this->init(); } // If we've passed an xmldump variable in the URL, snap into XMLdump mode if (isset($_GET['xmldump'])) { $this->enable_xmldump($_GET['xmldump']); } } /**************************************************** CONFIGURE OPTIONS Set various options (feed URL, XML dump, caching, etc.) ****************************************************/ // Feed URL function feed_url($url) { $url = $this->fix_protocol($url, 1); $this->rss_url = $url; return true; } // XML Dump function enable_xmldump($enable) { $this->xml_dump = (bool) $enable; return true; } // Bypass Image Hotlink function bypass_image_hotlink($getvar='i') { $this->bypass_image_hotlink = (string) $getvar; return true; } // Bypass Image Hotlink Page function bypass_image_hotlink_page($page = false) { $this->bypass_image_hotlink_page = (string) $page; return true; } // Caching function enable_caching($enable) { $this->caching = (bool) $enable; return true; } // Cache Timeout function cache_max_minutes($minutes) { $this->max_minutes = (int) $minutes; return true; } // Cache Location function cache_location($location) { $this->cache_location = (string) $location; return true; } // Replace H1, H2, and H3 tags with the less important H4 tags. function replace_headers($enable) { $this->replace_headers = (bool) $enable; return true; } // Remove outer div in XHTML content within Atom function remove_div($enable) { $this->remove_div = (bool) $enable; return true; } // Order the items by date function order_by_date($enable) { $this->order_by_date = (bool) $enable; return true; } // Strip out certain well-known ads function strip_ads($enable) { $this->strip_ads = (bool) $enable; return true; } // Strip out potentially dangerous tags function strip_htmltags($tags, $encode=false) { $this->strip_htmltags = (string) $tags; $this->encode_instead_of_strip = (bool) $encode; return true; } // Encode dangerous tags instead of stripping them function encode_instead_of_strip($encode=true) { $this->encode_instead_of_strip = (bool) $encode; return true; } // Strip out potentially dangerous attributes function strip_attributes($attrib) { $this->strip_attributes = (string) $attrib; return true; } /**************************************************** MAIN INITIALIZATION FUNCTION Rewrites the feed so that it actually resembles XML, processes the XML, and builds an array from the feed. ****************************************************/ function init() { // If Bypass Image Hotlink is enabled, send image to the page and quit. if ($this->bypass_image_hotlink) { if (isset($_GET[$this->bypass_image_hotlink]) && !empty($_GET[$this->bypass_image_hotlink])) { $this->display_image($_GET[$this->bypass_image_hotlink]); exit; } } // If Bypass Image Hotlink is enabled, send image to the page and quit. if (isset($_GET['js'])) { // JavaScript for the Odeo Player $embed=''; $embed.='function embed_odeo(link) {'; $embed.='document.writeln(\''; $embed.='<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" '; $embed.=' codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0" '; $embed.=' width="440" '; $embed.=' height="80" '; $embed.=' align="middle">'; $embed.='<param name="movie" value="http://odeo.com/flash/audio_player_fullsize.swf" />'; $embed.='<param name="allowScriptAccess" value="any" />'; $embed.='<param name="quality" value="high">'; $embed.='<param name="wmode" value="transparent">'; $embed.='<param name="flashvars" value="valid_sample_rate=true&external_url=\'+link+\'" />'; $embed.='<embed src="http://odeo.com/flash/audio_player_fullsize.swf" '; $embed.=' pluginspage="http://www.macromedia.com/go/getflashplayer" '; $embed.=' type="application/x-shockwave-flash" '; $embed.=' quality="high" '; $embed.=' width="440" '; $embed.=' height="80" '; $embed.=' wmode="transparent" '; $embed.=' allowScriptAccess="any" '; $embed.=' flashvars="valid_sample_rate=true&external_url=\'+link+\'">'; $embed.='</embed>'; $embed.='</object>'; $embed.='\');'; $embed.='}'; $embed.="\r\n"; $embed.='function embed_quicktime(type, bgcolor, width, height, link, placeholder, loop) {'; $embed.='document.writeln(\''; $embed.='<object classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" '; $embed.=' style="cursor:hand; cursor:pointer;" '; $embed.=' type="\'+type+\'" '; $embed.=' codebase="http://www.apple.com/qtactivex/qtplugin.cab" '; $embed.=' bgcolor="\'+bgcolor+\'" '; $embed.=' width="\'+width+\'" '; $embed.=' height="\'+height+\'">'; $embed.='<param name="href" value="\'+link+\'" />'; $embed.='<param name="src" value="\'+placeho