From bdb14d5aadce2f0a2f6dc9c898287ea424642dd8 Mon Sep 17 00:00:00 2001
From: friendica <info@friendica.com>
Date: Sun, 26 Feb 2012 14:34:01 -0800
Subject: [PATCH] relative link redirects

---
 boot.php            |  2 +-
 include/Scrape.php  | 19 +++++++++++++------
 include/network.php | 19 ++++++++++++-------
 3 files changed, 26 insertions(+), 14 deletions(-)

diff --git a/boot.php b/boot.php
index 54f318e5e9..f348ae6e89 100755
--- a/boot.php
+++ b/boot.php
@@ -9,7 +9,7 @@ require_once('include/nav.php');
 require_once('include/cache.php');
 
 define ( 'FRIENDICA_PLATFORM',     'Friendica');
-define ( 'FRIENDICA_VERSION',      '2.3.1263' );
+define ( 'FRIENDICA_VERSION',      '2.3.1264' );
 define ( 'DFRN_PROTOCOL_VERSION',  '2.22'    );
 define ( 'DB_UPDATE_VERSION',      1126      );
 
diff --git a/include/Scrape.php b/include/Scrape.php
index 52405ae2dd..1835892eb0 100755
--- a/include/Scrape.php
+++ b/include/Scrape.php
@@ -230,11 +230,16 @@ function scrape_feed($url) {
 	$ret = array();
 	$s = fetch_url($url);
 
-	if(! $s) 
-		return $ret;
-
 	$headers = $a->get_curl_headers();
-	logger('scrape_feed: headers=' . $headers, LOGGER_DEBUG);
+	$code = $a->get_curl_code();
+
+	logger('scrape_feed: returns: ' . $code . ' headers=' . $headers, LOGGER_DEBUG);
+
+	if(! $s) {
+		logger('scrape_feed: no data returned for ' . $url); 
+		return $ret;
+	}
+
 
 	$lines = explode("\n",$headers);
 	if(count($lines)) {
@@ -258,8 +263,10 @@ function scrape_feed($url) {
 		logger('scrape_feed: parse error: ' . $e);
 	}
 
-	if(! $dom)
+	if(! $dom) {
+		logger('scrape_feed: failed to parse.');
 		return $ret;
+	}
 
 
 	$head = $dom->getElementsByTagName('base');
@@ -556,7 +563,7 @@ function probe_url($url, $mode = PROBE_NORMAL) {
 		if($check_feed) {
 
 			$feedret = scrape_feed(($poll) ? $poll : $url);
-			logger('probe_url: scrape_feed returns: ' . print_r($feedret,true), LOGGER_DATA);
+			logger('probe_url: scrape_feed ' . (($poll)? $poll : $url) . ' returns: ' . print_r($feedret,true), LOGGER_DATA);
 			if(count($feedret) && ($feedret['feed_atom'] || $feedret['feed_rss'])) {
 				$poll = ((x($feedret,'feed_atom')) ? unamp($feedret['feed_atom']) : unamp($feedret['feed_rss']));
 				if(! x($vcard)) 
diff --git a/include/network.php b/include/network.php
index 531c3ea4c8..c72919dd8b 100755
--- a/include/network.php
+++ b/include/network.php
@@ -17,7 +17,7 @@ function fetch_url($url,$binary = false, &$redirects = 0, $timeout = 0, $accept_
 	
 	if (!is_null($accept_content)){
 		curl_setopt($ch,CURLOPT_HTTPHEADER, array (
-			"Accept: "+$accept_content
+			"Accept: " . $accept_content
 		));
 	}
 	
@@ -60,6 +60,7 @@ function fetch_url($url,$binary = false, &$redirects = 0, $timeout = 0, $accept_
 	$curl_info = @curl_getinfo($ch);
 	$http_code = $curl_info['http_code'];
 
+//	logger('fetch_url:' . $http_code . ' data: ' . $s);
 	$header = '';
 
 	// Pull out multiple headers, e.g. proxy and continuation headers
@@ -74,11 +75,13 @@ function fetch_url($url,$binary = false, &$redirects = 0, $timeout = 0, $accept_
 	if($http_code == 301 || $http_code == 302 || $http_code == 303 || $http_code == 307) {
         $matches = array();
         preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
-        $url = trim(array_pop($matches));
-        $url_parsed = @parse_url($url);
+        $newurl = trim(array_pop($matches));
+		if(strpos($newurl,'/') === 0)
+			$newurl = $url . $newurl;
+        $url_parsed = @parse_url($newurl);
         if (isset($url_parsed)) {
             $redirects++;
-            return fetch_url($url,$binary,$redirects,$timeout);
+            return fetch_url($newurl,$binary,$redirects,$timeout);
         }
     }
 
@@ -163,11 +166,13 @@ function post_url($url,$params, $headers = null, &$redirects = 0, $timeout = 0)
 	if($http_code == 301 || $http_code == 302 || $http_code == 303) {
         $matches = array();
         preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
-        $url = trim(array_pop($matches));
-        $url_parsed = @parse_url($url);
+        $newurl = trim(array_pop($matches));
+		if(strpos($newurl,'/') === 0)
+			$newurl = $url . $newurl;
+        $url_parsed = @parse_url($newurl);
         if (isset($url_parsed)) {
             $redirects++;
-            return post_url($url,$params,$headers,$redirects,$timeout);
+            return fetch_url($newurl,$binary,$redirects,$timeout);
         }
     }
 	$a->set_curl_code($http_code);