[xoops-svn] SF.net SVN: xoops:[8776] XoopsModules/smallworld/trunk/smallworld/class/ adminclass.php

[<dj...@us...>]

Revision: 8776
          http://xoops.svn.sourceforge.net/xoops/?rev=8776&view=rev
Author:   djculex
Date:     2012-01-22 16:14:22 +0000 (Sun, 22 Jan 2012)
Log Message:
-----------
Found a nice function to retrieve remote content
will attempt to use the fopen method first, then curl, then socket

Modified Paths:
--------------
    XoopsModules/smallworld/trunk/smallworld/class/adminclass.php

Modified: XoopsModules/smallworld/trunk/smallworld/class/adminclass.php
===================================================================
--- XoopsModules/smallworld/trunk/smallworld/class/adminclass.php	2012-01-22 15:11:08 UTC (rev 8775)
+++ XoopsModules/smallworld/trunk/smallworld/class/adminclass.php	2012-01-22 16:14:22 UTC (rev 8776)
@@ -230,7 +230,7 @@
 	 $rt = '';
 		
 		$url = "http://www.culex.dk/updates/smallworld_version.csv";
-		$fileC = file_get_contents($url);
+		$fileC = $this->fetchURL($url,array('fopen', 'curl', 'socket'));
 		$read = explode(";", $fileC);
 
         $upd_img = $pathIcon16.'/on.png';
@@ -257,6 +257,86 @@
 		return $rt;
 	}
 	
+	 // Fetch content of comma separated text file
+	 // will attempt to use the fopen method first, then curl, then socket
+	 // If fail all; return nothing
+	 // On succes; Return string
+	function fetchURL($url, $methods = array('fopen', 'curl', 'socket')) {
+		/**
+		*   December 21st 2010, Mathew Tinsley (ti...@ti...)
+		*   http://tinsology.net
+		*
+		*   To the extent possible under law, Mathew Tinsley has waived all copyright and related or
+		*   neighboring rights to this work. There's absolutely no warranty.
+		*/
+		if(gettype($methods) == 'string')
+			$methods = array($methods);
+		elseif(!is_array($methods))
+			return false;
+		foreach($methods as $method)
+		{
+			switch($method)
+			{
+			case 'fopen':
+				//uses file_get_contents in place of fopen
+				//allow_url_fopen must still be enabled
+				if(ini_get('allow_url_fopen'))
+				{
+					$contents = file_get_contents($url);
+					if($contents !== false)
+						return $contents;
+				}
+			break;
+			case 'curl':
+				if(function_exists('curl_init'))
+				{
+					$ch = curl_init();
+					curl_setopt($ch, CURLOPT_URL, $url);
+					curl_setopt($ch, CURLOPT_HEADER, 0);
+					return curl_exec($ch);
+				}
+			break;
+			case 'socket':
+				//make sure the url contains a protocol, otherwise $parts['host'] won't be set
+				if(strpos($url, 'http://') !== 0 && strpos($url, 'https://') !== 0)
+					$url = 'http://' . $url;
+				$parts = parse_url($url);
+				if($parts['scheme'] == 'https')
+				{
+					$target = 'ssl://' . $parts['host'];
+					$port = isset($parts['port']) ? $parts['port'] : 443;
+				}
+				else
+				{
+					$target = $parts['host'];
+					$port = isset($parts['port']) ? $parts['port'] : 80;
+				}
+				$page    = isset($parts['path'])        ? $parts['path']            : '';
+				$page   .= isset($parts['query'])       ? '?' . $parts['query']     : '';
+				$page   .= isset($parts['fragment'])    ? '#' . $parts['fragment']  : '';
+				$page    = ($page == '')                ? '/'                       : $page;
+				if($fp = fsockopen($target, $port, $errno, $errstr, 15))
+				{
+					$headers  = "GET $page HTTP/1.1\r\n";
+					$headers .= "Host: {$parts['host']}\r\n";
+					$headers .= "Connection: Close\r\n\r\n";
+					if(fwrite($fp, $headers))
+					{
+						$resp = '';
+						//while not eof and an error does not occur when calling fgets
+						while(!feof($fp) && ($curr = fgets($fp, 128)) !== false)
+							$resp .= $curr;
+						if(isset($curr) && $curr !== false)
+							return substr(strstr($resp, "\r\n\r\n"), 3);
+					}
+					fclose($fp);
+				}
+			break;
+			}
+		}
+		return false;
+	}
+	
 	// flatten multidimentional arrays to one dimentional
 	function flatten($array) {
 		$return = array();

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