parse_url: if url returns an image/audio/video file instead of a webpage, return the bbcode for the appropriate content type. This results in two web fetches of the url in question, but the first one is just a HEAD. This way we won't try and download and parse an entire video. TODO: img's are checked to see if they should be zid-ified, but audio/video currently are not.

2 files changed, 35 insertions, 0 deletions

diff --git a/include/network.php b/include/network.php
index db32396e4..5912ad79d 100644
--- a/include/network.php
+++ b/include/network.php
@@ -19,6 +19,7 @@ function get_capath() {
  *    'timeout' => int seconds, default system config value or 60 seconds
  *    'http_auth' => username:password
  *    'novalidate' => do not validate SSL certs, default is to validate using our CA list
+ *    'nobody' => only return the header
  *    
  * @returns array
  *    'return_code' => HTTP return code or 0 if timeout or failure
@@ -51,6 +52,9 @@ function z_fetch_url($url, $binary = false, $redirects = 0, $opts = array()) {
 	if(x($opts,'headers'))
 		@curl_setopt($ch, CURLOPT_HTTPHEADER, $opts['headers']);
 
+	if(x($opts,'nobody'))
+		@curl_setopt($ch, CURLOPT_NOBODY, $opts['nobody']);
+
 	if(x($opts,'timeout') && intval($opts['timeout'])) {
 		@curl_setopt($ch, CURLOPT_TIMEOUT, $opts['timeout']);
 	}
@@ -182,6 +186,9 @@ function z_post_url($url,$params, $redirects = 0, $opts = array()) {
 	if(x($opts,'headers'))
 		@curl_setopt($ch, CURLOPT_HTTPHEADER, $opts['headers']);
 
+	if(x($opts,'nobody'))
+		@curl_setopt($ch, CURLOPT_NOBODY, $opts['nobody']);
+
 	if(x($opts,'timeout') && intval($opts['timeout'])) {
 		@curl_setopt($ch, CURLOPT_TIMEOUT, $opts['timeout']);
 	}
diff --git a/mod/parse_url.php b/mod/parse_url.php
index 23d608411..49d5cae76 100644
--- a/mod/parse_url.php
+++ b/mod/parse_url.php
@@ -250,6 +250,34 @@ function parse_url_content(&$a) {
 		}
 	}
 
+	$result = z_fetch_url($url,false,0,array('novalidate' => true, 'nobody' => true));
+	if($result['success']) {
+		$hdrs=array();
+		$h = explode("\n",$result['header']);
+		foreach ($h as $l) {
+			list($k,$v) = array_map("trim", explode(":", trim($l), 2));
+			$hdrs[$k] = $v;
+		}
+		if (array_key_exists('Content-Type', $hdrs))
+			$type = $hdrs['Content-Type'];
+		if($type) {
+			if(in_array($type,array('image/jpeg','image/gif','image/png'))) {
+				$s = $br . '[img]' . $url . '[/img]' . $br;
+				$s = preg_replace_callback('/\[img(.*?)\](.*?)\[\/img\]/ism','red_zrlify_img_callback',$s);
+				echo $s;
+				killme();
+			}
+			if(stripos($type,'video/') !== false) {
+				echo $br . '[video]' . $url . '[/video]' . $br;
+				killme();
+			}
+			if(stripos($type,'audio/') !== false) {
+				echo $br . '[audio]' . $url . '[/audio]' . $br;
+				killme();
+			}
+		}
+	}
+
 	logger('parse_url: ' . $url);
 
 	$template = $br . '#^[url=%s]%s[/url]%s' . $br;