Rss Get - Rss Get.php - Free PHP Scripts

Rss Get.php:

<?php

 #==========================
 # The following line declares how long to wait before reloading the RSS feed.
 # Keep in mind, many sites discourage people from pulling its feed more often than 30 minutes.
 # For example, Slashdot.org may ban your server if it tries to load the rss feed too often.

 # You may change the below line.
 #==========================

 $minutes = 30; //How often to update the image. 0 indicates that image updates every time it is called (heavy strain on bandwidth & server)

 #==========================
 # The next line is what directory to dump the htm files generated by this script.
 # It should be relative to the location of this script, and it *MUST* have a trailing slash if it's a seperate dir.
 # If you want the files to be dumped in the same dir as this script, set it to ""

 # You may change the next line
 #==========================

 $filename = "rss/";

 #==========================
 # The next 4 lines are default settings for the script to use, if they are not set prior to including this script
 # You may change the next 4 lines.
 #==========================

 $default_url = "http://www.aarondunlap.com/rss.php?mode=hl"; //URL for the RSS/XML feed you're subscribing to.
 $default_displayname = "|| aarondunlap.com ||"; //Title to appear before headlines. Should be feed-specific
 $default_number = 5; //How many headlines to display. If you set it higher than the ammount of headlines, it will stop there
 $default_target = "_self"; //Target for headline links. Options: "_self" and "_blank"

 #==========================
 # The next line is whether or not the script should auto-update.
 # If enabled, the script will check to see if a newer version of this script is available and will
 # automatically download and install it. Your current version of the script will be backed up in your $filename
 # directory.

 # If you have manually edited this script, you should disable this. Otherwise, it is recomended that you enable it.
 # Also note, your customized settings (default_url, default_displayname, filename, etc) WILL be kept during
 # auto-updates. Alterations to the actual function code (beneath) would be overwritten in an update.

 # During updates, your existing script is backed up into the $filename directory as "backup_[date]_(time).php"

 # You may change the next line
 #==========================

 $autoupdate = TRUE;

 #==========================
 # The settings below are for advanced headline truncation.

 # $default_trunc is how many characters to cut off at,
 # the default is FALSE, which wont truncate
 # at all.

 # You may use $trunc when calling this script
 # to define the truncation for specific feeds

 # $default_delim is what character to cut off the headline at
 # for example, if your headlines contain useless
 # data at the end, like "(via Reuters)", setting
 # the delimiter to "(" will stop that from showing.

 # You may use $delim when calling this script
 # to define the truncation for specific feeds

 #===========================

 $default_trunc = FALSE;
 $default_delim = FALSE;

 #XXXXXXXXXXXXXXXXXXXXXXXXXX
 # Everything below is functional code.

 # You should not change it unless you know what you're doing,
 # and even if you do know what you're doing, are you sure you're
 # awake enough to do it? Maybe take a nap, rethink things, try again.
 #XXXXXXXXXXXXXXXXXXXXXXXXXX

 $version = 1.481;

 //If these variables aren't declared already, use defaults.
 if (!isset($url)) { $url = $default_url; }
 if (!isset($displayname)) { $displayname = $default_displayname; }
 if (!isset($number)) { $number = $default_number; }
 if (!isset($target)) { $target = $default_target; }
 if (!isset($trunc)) { $trunc = $default_trunc; }
 if (!isset($delim)) { $delim = $default_delim; }


 //In-URL definitions. Cannot be used for including, but it works great for testing.
 if (isset($_GET['url'])) { $url = $_GET['url'];}
 if (isset($_GET['number'])) { $number = $_GET['number'];}
 if (isset($_GET['displayname'])) { $displayname = $_GET['displayname'];}
 if (isset($_GET['rssHeadline'])) { $rssHeadline = $_GET['rssHeadline'];}
 $basefile = $filename;
 $versionfile = $filename."updatelog.htm"; //File for update attempt log
 $filename .= md5($url).".htm"; //Prepare filename for htm output

 #==========================
 # Script updating. Checks to see if an update attempt has been made in 24 hours, then goes ahead.
 #==========================
 if (((is_file($versionfile)) && (((time()-filemtime($versionfile)) >= (24 * 60 * 60))) || (!is_file($versionfile))) && ($autoupdate == TRUE)) {
 $out = "";

 //If updatelog.htm is too big, clear it out.
 if (filesize($versionfile) > 102400) { unlink($versionfile); $out .= "[".date("m/d/y H:i:s")."] Cleared update log because it was too big (>100kB)<hr>"; }

 $fd = fopen ($versionfile , "a+");
 $out .= "[".date("m/d/y H:i:s")."] Attempting to acquire latest version number: ";
 fwrite ($fd , $out);
 require 'http://www.aarondunlap.com/code/rss_get_version.php';

 if ((isset($latestversion)) && (isset($versionURL))) {
 $out = "Acquired! \n [".date("m/d/y H:i:s")."] Comparing version numbers: ";
 fwrite ($fd , $out);
 if ($version < $latestversion) {
 $out = "Your version ($version) is out-of-date. Updating to version $latestversion. \n [".date("m/d/y H:i:s")."] Loading updated script: ";
 fwrite ($fd , $out);

 //Reads the new file from my server
 if (@$newversfile = fopen($versionURL, "r")) {

 while (!feof($newversfile)) {
 $newvers .= fgets($newversfile);
 }

 //Transfers currently existing settings onto the update.
 $newvers = str_replace("http://www.aarondunlap.com/rss.php?mode=hl", $default_url, $newvers);
 $newvers = str_replace("|| aarondunlap.com ||", $default_displayname, $newvers);
 $newvers = str_replace('$default_number = 5;', '$default_number = '.$default_number.';', $newvers);
 $newvers = str_replace('$autoupdate = TRUE;', '$autoupdate = '.$autoupdate.';', $newvers);
 $newvers = str_replace('$filename = "rss/";', '$filename = "'.$basefile.'";', $newvers);
 $newvers = str_replace('$minutes = 30;', '$minutes = '.$minutes.';', $newvers);
 $newvers = str_replace('$default_target = "_self";', '$default_target = '.$default_target.';', $newvers);


 $out = "Opened \n [".date("m/d/y H:i:s")."] Checking write-access in directory: ";
 fwrite ($fd , $out);

 //Checks to make sure we can write in this directory
 if (is_writable(getcwd())) {
 $out = "Writable! \n [".date("m/d/y H:i:s")."] Writing new version to temporary file: ";
 fwrite ($fd , $out);

 $outfile = fopen("rss_get_temp.txt", "w+");
 fwrite($outfile, $newvers);
 fclose($outfile);
 $out = "Written. \n[".date("m/d/y H:i:s")."] Backing up outdated file in $basefile directory:";
 fwrite ($fd , $out);


 //Backs up the current script (this one) into the rss folder
 if (!copy("rss_get.php", $basefile."backup_".date("m-d-y_(H.i)").".php")) {
 $out = "Failed.<hr>\n";
 fwrite ($fd , $out);
 fclose($fd);
 } else {
 $out = "Moved. \n[".date("m/d/y H:i:s")."] Replacing script with new version:";
 fwrite ($fd , $out);

 //Renames the temp file as this file, effectively replacing it.
 if (@!rename("rss_get_temp.txt", "rss_get.php")) {
 /*Dude, look at these if blocks!*/ $out = "Failed.<hr>\n";
 fwrite ($fd , $out);
 fclose($fd);
 } else {
 chmod("rss_get.php", 774);
 $out = "Replaced \n[".date("m/d/y H:i:s")."] RSS_GET updating complete. \n [".date("m/d/y H:i:s")."]Version note from author:".$message."<hr>\n";
 fwrite ($fd , $out);
 fclose($fd);
 }

 }

 } else {
 $out = "Not Writable.<hr>\n";
 fwrite ($fd , $out);
 fclose($fd);
 }

 } else {
 $out = "Failed.<hr>\n";
 fwrite ($fd , $out);
 fclose($fd);
 }
 } else {
 $out = "Your version is current<hr>\n";
 fwrite ($fd , $out);
 }

 } else {
 $out = "Failed.<hr>\n";
 fwrite ($fd , $out);
 fclose($fd);
 }
} // That's a lot of elses! Alright, we're done with the update thing.


 #==========================
 # Check the modify time of the htm file for this feed, and see if it's too new to reload the feed.
 # If the file is too new, it loads the htm file. This stops the script from constantly pulling the feed.
 #==========================

 if (($minutes > 0) && (is_file($filename)) && (((time()-filemtime($filename)) < ($minutes * 60)))) {
 include $filename;
 $time = floor((time()-filemtime($filename)) / 60); //See how many "minutes ago" the file was made.
 echo " Updated $time minutes ago."; //Include "minutes ago" after output.

 } elseif (@fopen($url, "r")) { //Makes sure the file can actually be accessed.

 #==========================
 # If we're down here, it means that the feed needs to be reloaded.
 #==========================

 $rssHandle = fopen($url, "r") ; // Open the rss file for reading

 while (!feof($rssHandle)) {
 $rssData .= fgets($rssHandle);
 }

 #==========================
 # Feed parsing
 #==========================
 $tag = "item ";
 $rssData = preg_replace("/<" . $tag . "(.|\s)*?>/", "<item>", $rssData);
 $rssData = chop($rssData); // Strip any whitespace from the end of the string
 $rssData = ereg_replace("[\r, \n]", "", $rssData); //Clear line breaks
 $rssData = strstr($rssData, "<item>"); //Remove everything before <item>.

 #==========================
 # Strip specific tags and their content from the feed, to lighten the strain on the processor.

 # Currently, only the <description></description> tags are stripped, we don't need them and sometimes
 # they are REALLY long, getting rid of them now makes it easier to parse later.
 #==========================
 $tags_and_content_to_strip = Array("description");

 foreach ($tags_and_content_to_strip as $tag) {
 $rssData = preg_replace("/<" . $tag . ">(.|\s)*?<\/" . $tag . ">/", "", $rssData);
 }

 $rssData = str_replace("<item>", "", $rssData); //Remove <item> itself
 $rssData = urldecode($rssData); //Replace any silly %20-type characters with their readable replacement.
 $rssData = str_replace(strstr("</channel>", $rssData), "", $rssData);
 $rssArray = explode("</item>", $rssData); //Creates an Array from all the headlines

 $title = array();
 $link = array();

 #==========================
 # This loop creates an array for links and another for titles.
 #==========================
 $x = 0;
 while($x < $number) {
 $link[$x] = strstr($rssArray[$x], "<link>"); //Remove everything before <link>
 $link[$x] = ereg_replace("<link>", "", $link[$x]);

 $link[$x] = str_replace(strstr($link[$x], "</link>"), "", $link[$x]);
 $link[$x] = trim($link[$x]);

 $title[$x] = strstr($rssArray[$x], "<title>");
 $title[$x] = ereg_replace("<title>", "", $title[$x]); // Remove the leading <title> tags from the selected headline
 $title[$x] = str_replace(strstr($title[$x], "</title>"), "", $title[$x]); // Remove </title> and anything after it
 $title[$x] = trim($title[$x]);

 if ($trunc != FALSE) { $title[$x] = str_replace(substr($title[$x], $trunc), "", $title[$x]); }
 if ($delim != FALSE) { $title[$x] = str_replace(strstr($title[$x], $delim), "", $title[$x]); }

 if ($title[$x] == "") { $number = $x; break; } //If there are no more headlines, reset $number to the max.
 $x++;
 }

 #==========================
 # Writing the file
 #==========================
 $fp = fopen($filename, "w+");
 $x=0;
 fwrite($fp, "$displayname \n"); //Write the displayname to the file

 while ($x < $number) { //This loop writes each line individualy.
 fwrite($fp, " \n-<a class=\"headlinellink\" target=\"$target\" href=\"$link[$x]\">$title[$x]</a>");
 $x++;
 }
 fclose($fp);
 include $filename;
 echo " Live.";

} else {
 #==========================
 # Error handling:
 # (rss url given is unreadable)
 #==========================
 echo "Could not connect to $url. ";

}

?>

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