fetch_file_contents: allow setting http Accept header

diff --git a/include/functions.php b/include/functions.php
index 6c8620f630c61a65db083081c2108f586453d3ee..a6dbd43a89fb70280cf1d061cb604ec58951e027 100755 (executable)
--- a/include/functions.php
+++ b/include/functions.php
@@ -376,6 +376,7 @@
                $useragent = isset($options["useragent"]) ? $options["useragent"] : false;
                $followlocation = isset($options["followlocation"]) ? $options["followlocation"] : true;
                $max_size = isset($options["max_size"]) ? $options["max_size"] : MAX_DOWNLOAD_FILE_SIZE; // in bytes
+               $http_accept = isset($options["http_accept"]) ? $options["http_accept"] : false;
 
                $url = ltrim($url, ' ');
                $url = str_replace(' ', '%20', $url);
@@ -389,10 +390,16 @@
 
                        $ch = curl_init($url);
 
-                       if ($last_modified && !$post_query) {
-                               curl_setopt($ch, CURLOPT_HTTPHEADER,
-                                       array("If-Modified-Since: $last_modified"));
-                       }
+                       $curl_http_headers = [];
+
+                       if ($last_modified && !$post_query)
+                               array_push($curl_http_headers, "If-Modified-Since: $last_modified");
+
+                       if ($http_accept)
+                               array_push($curl_http_headers, "Accept: " . $http_accept);
+
+                       if (count($curl_http_headers) > 0)
+                               curl_setopt($ch, CURLOPT_HTTPHEADER, $curl_http_headers);
 
                        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout ? $timeout : FILE_FETCH_CONNECT_TIMEOUT);
                        curl_setopt($ch, CURLOPT_TIMEOUT, $timeout ? $timeout : FILE_FETCH_TIMEOUT);
@@ -519,9 +526,11 @@
                                                'protocol_version'=> 1.1)
                                  );
 
-                       if (!$post_query && $last_modified) {
+                       if (!$post_query && $last_modified)
                                array_push($context_options['http']['header'], "If-Modified-Since: $last_modified");
-                       }
+
+                       if ($http_accept)
+                               array_push($context_options['http']['header'], "Accept: $http_accept");
 
                        if (defined('_HTTP_PROXY')) {
                                $context_options['http']['request_fulluri'] = true;