<?php
/* CafйRSS 1.0
by Michel Valdrighi, on 2002/08/08
licensed under the GPL, see license.txt for information
please keep this comment here */
class cafeRSS {
var $url;
var $debugtimer;
/* defaut values */
var $items = 'all';
var $template_string = '';
var $template_file = 'cafeRSS_template.txt';
var $use_cache = 0;
var $cache_dir = 'cafeRSS_cache'; # if you want to cache, chmod a directory 777 and put its name here
var $refresh_time = 900; # in seconds - has no effect if $use_cache = 0;
var $echo = 1;
var $debug = 0;
/* usage: $this->assign('var','value'); */
function assign($var, $value) {
$this->$var = $value;
}
/* usage: $this->display('url' [, those optional parameters below ]); */
function display($rss_file = 'blah', $rss_items = 'blah', $rss_template_string = 'blah', $rss_template_file = 'blah', $rss_use_cache= 'blah', $rss_cache_dir = 'blah', $rss_refresh_time = 'blah', $rss_echo = 'blah', $rss_debug = 'blah') {
if ($rss_file == 'blah') { $rss_file = $this->url; }
if ($rss_items == 'blah') { $rss_items = $this->items; }
if ($rss_template_string == 'blah') { $rss_template_string = $this->template_string; }
if ($rss_template_file == 'blah') { $rss_template_file = $this->template_file; }
if ($rss_use_cache == 'blah') { $rss_use_cache = $this->use_cache; }
if ($rss_cache_dir == 'blah') { $rss_cache_dir = $this->cache_dir; }
if ($rss_refresh_time == 'blah') { $rss_refresh_time = $this->refresh_time; }
if ($rss_echo == 'blah') { $rss_echo = $this->echo; }
if ($rss_debug == 'blah') { $rss_debug = $this->debug; }
$rss_cache_file = $rss_cache_dir.'/'.preg_replace('/[^a-zA-Z0-9_\.-]/', '_', $rss_file).'.cache';
if (preg_match('/</', $rss_file)) {
$content = $rss_file;
} else {
/* the secret cache ops, part I */
if (($rss_cache_dir != '') && ($rss_use_cache)) {
clearstatcache();
$get_rss = 1;
$cache_rss = 1;
if (file_exists($rss_cache_file)) {
if ((time() - filemtime($rss_cache_file)) < $rss_refresh_time) {
$this->timer_start();
$f = fopen($rss_cache_file, 'r');
$content = fread($f, filesize($rss_cache_file));
fclose($f);
$debugfopencachetime = $this->timer_stop(0);
$get_rss = 0;
}
}
} else {
$get_rss = 1;
$cache_rss = 0;
}
/* opens the RSS file */
$this->timer_start();
if ($get_rss) {
$f = fopen($rss_file,'r');
while (!feof($f)) {
$content .= fgets($f, 4096);
}
fclose($f);
}
$debugfopentime = $this->timer_stop(0);
/* the secret cache ops, part II */
if (($cache_rss) && ($rss_use_cache)) {
$this->timer_start();
$f = fopen($rss_cache_file, 'w+');
fwrite($f, $content);
fclose($f);
$debugcachetime = $this->timer_stop(0);
} else {
$debugcachetime = 0;
}
}
/* gets RSS channel info and RSS items info */
$this->timer_start();
preg_match_all("'<channel>(.+?)<title>(.*?)</title>(.+?)</channel>'si",$content,$rss_title);
preg_match_all("'<channel>(.+?)<link>(.*?)</link>(.+?)</channel>'si",$content,$rss_link);
preg_match_all("'<channel>(.+?)<description>(.*?)</description>(.+?)</channel>'si",$content,$rss_description);
preg_match_all("'<channel>(.+?)<lastBuildDate>(.*?)</lastBuildDate>(.+?)</channel>'si",$content,$rss_lastBuildDate);
preg_match_all("'<channel>(.+?)<docs>(.*?)</docs>(.+?)</channel>'si",$content,$rss_docs);
preg_match_all("'<channel>(.+?)<managingEditor>(.*?)</managingEditor>(.+?)</channel>'si",$content,$rss_managingEditor);
preg_match_all("'<channel>(.+?)<webMaster>(.*?)</webMaster>(.+?)</channel>'si",$content,$rss_webMaster);
preg_match_all("'<channel>(.+?)<language>(.*?)</language>(.+?)</channel>'si",$content,$rss_language);
preg_match_all("'<image>(.+?)<title>(.*?)</title>(.+?)</image>'si",$content,$rss_image_title);
preg_match_all("'<image>(.+?)<url>(.*?)</url>(.+?)</image>'si",$content,$rss_image_url);
preg_match_all("'<image>(.+?)<link>(.*?)</link>(.+?)</image>'si",$content,$rss_image_link);
preg_match_all("'<item>(.+?)<title>(.*?)</title>(.+?)</item>'si",$content,$rss_item_titles);
preg_match_all("'<item>(.+?)<link>(.*?)</link>(.+?)</item>'si",$content,$rss_item_links);
preg_match_all("'<item>(.+?)<description>(.*?)</description>(.+?)</item>'si",$content,$rss_item_descriptions);
$rss_title = $rss_title[2][0];
$rss_link = $rss_link[2][0];
$rss_description = $rss_description[2][0];
$rss_lastBuildDate = $rss_lastBuildDate[2][0];
$rss_docs = $rss_docs[2][0];
$rss_managingEditor = $rss_managingEditor[2][0];
$rss_webMaster = $rss_webMaster[2][0];
$rss_language = $rss_language[2][0];
$rss_image_title = $rss_image_title[2][0];
$rss_image_url = $rss_image_url[2][0];
$rss_image_link = $rss_image_link[2][0];
$debugparsersstime = $this->timer_stop(0);
/* gets the template */
$this->timer_start();
if (empty($rss_template_string)) {
$f = fopen($rss_template_file,'r');
$rss_template = fread($f, filesize($rss_template_file));
fclose($f);
} else {
$rss_template = $rss_template_string;
}
$debugfopentemplatetime = $this->timer_stop(0);
preg_match_all("'{rss_items}(.+?){/rss_items}'si",$rss_template,$rss_template_loop);
$rss_template_loop = $rss_template_loop[1][0];
$rss_template = str_replace('{rss_items}','',$rss_template);
$rss_template = str_replace('{/rss_items}','',$rss_template);
/* processes the template - rss channel info */
$this->timer_start();
$rss_template = str_replace('{$rss_title}',$rss_title, $rss_template);
$rss_template = str_replace('{$rss_link}',$rss_link, $rss_template);
$rss_template = str_replace('{$rss_description}',$rss_description, $rss_template);
$rss_template = str_replace('{$rss_lastBuildDate}',$rss_lastBuildDate, $rss_template);
$rss_template = str_replace('{$rss_docs}',$rss_docs, $rss_template);
$rss_template = str_replace('{$rss_managingEditor}',$rss_managingEditor, $rss_template);
$rss_template = str_replace('{$rss_webMaster}',$rss_webMaster, $rss_template);
$rss_template = str_replace('{$rss_language}',$rss_language, $rss_template);
/* processes the template - rss image info */
if ($rss_image_url != '') {
$rss_template = str_replace('{rss_image}','',$rss_template);
$rss_template = str_replace('{/rss_image}','',$rss_template);
$rss_template = str_replace('{$rss_image_title}',$rss_image_title, $rss_template);
$rss_template = str_replace('{$rss_image_link}',$rss_image_link, $rss_template);
$rss_template = str_replace('{$rss_image_url}',$rss_image_url, $rss_template);
} else {
$rand = md5(rand(1,5)); /* now there's an ugly hack that I'll have to fix */
$rss_template = preg_replace('/(\015\012)|(\015)|(\012)/', $rand, $rss_template);
$rss_template = preg_replace('/{rss_image}(.*?){\/rss_image}/', '', $rss_template);
$rss_template = preg_replace("/$rand/", "\n", $rss_template);
}
/* processes the template - rss items info */
$rss_template_loop_processed = '';
$k = count($rss_item_titles[2]);
$j = (($rss_items == 'all') || ($rss_items > $k)) ? $k : intval($rss_items);
for ($i = 0; $i<$j; $i++) {
$tmp_template = $rss_template_loop;
$tmp_title = $rss_item_titles[2][$i];
$tmp_link = $rss_item_links[2][$i];
$tmp_description = $rss_item_descriptions[2][$i];
if ($tmp_description == '') {
$tmp_description = '-';
}
if ($tmp_title == '') {
$tmp_title = substr($tmp_description,0,20);
if (strlen($tmp_description) > 20) {
$tmp_title .= '...';
}
}
$tmp_template = str_replace('{$rss_item_title}',$tmp_title, $tmp_template);
$tmp_template = str_replace('{$rss_item_link}',$tmp_link, $tmp_template);
$tmp_template = str_replace('{$rss_item_description}',$tmp_description, $tmp_template);
$rss_template_loop_processed .= $tmp_template;
}
$rss_template = str_replace($rss_template_loop, $rss_template_loop_processed, $rss_template);
$debugprocesstemplatetime = $this->timer_stop(0);
clearstatcache();
/* echoes or returns the processed template :) */
if ($rss_echo) {
echo $rss_template;
if ($rss_debug) {
echo '<p>';
echo $debugfopentime.' seconds to load the remote RSS file.<br />';
echo $debugparsersstime.' seconds to parse the RSS.<br />';
echo $debugfopentemplatetime.' seconds to load the template file.<br />';
echo $debugprocesstemplatetime.' seconds to process the template.<br />';
if ($cache_rss) {
echo $debugcachetime.' seconds to cache the parsing+processing.<br />';
}
echo '<br />';
$debugtotaltime = ($debugfopentime+$debugparsersstime+$debugfopentemplatetime+$debugfopentemplatetime+$debugprocesstemplatetime+$debugcachetime);
echo 'Total: '.$debugtotaltime.' seconds.';
echo '</p>';
}
} else {
return $rss_template;
}
}
function timer_start() {
$mtime = microtime();
$mtime = explode(" ",$mtime);
$mtime = $mtime[1] + $mtime[0];
$this->debugtimer = $mtime;
return true;
}
function timer_stop($display=0,$precision=3) {
$mtime = microtime();
$mtime = explode(" ",$mtime);
$mtime = $mtime[1] + $mtime[0];
$this->debugtimer = $mtime - $this->debugtimer;
if ($display)
echo number_format($this->debugtimer,$precision);
return($this->debugtimer);
}
}
?>