X-Git-Url: http://git.cyclocoop.org/?a=blobdiff_plain;f=includes%2Flibs%2Ffilebackend%2FHTTPFileStreamer.php;h=7a11aebf7ebfd4783683a719e6a10136c599e387;hb=65648f5523c9d1b772106e16e2adf57870892bc7;hp=e1612546d62b2e5c9a06eb4c091b0400af063ed7;hpb=9c185ca85c3c58f96e866c9347c2b7f031ddb289;p=lhc%2Fweb%2Fwiklou.git

diff --git a/includes/libs/filebackend/HTTPFileStreamer.php b/includes/libs/filebackend/HTTPFileStreamer.php
index e1612546d6..7a11aebf7e 100644
--- a/includes/libs/filebackend/HTTPFileStreamer.php
+++ b/includes/libs/filebackend/HTTPFileStreamer.php
@@ -39,6 +39,27 @@ class HTTPFileStreamer {
 	// Do not try to tear down any PHP output buffers
 	const STREAM_ALLOW_OB = 2;
 
+	/**
+	 * Takes HTTP headers in a name => value format and converts them to the weird format
+	 * expected by stream().
+	 * @param string[] $headers
+	 * @return array[] [ $headers, $optHeaders ]
+	 * @since 1.34
+	 */
+	public static function preprocessHeaders( $headers ) {
+		$rawHeaders = [];
+		$optHeaders = [];
+		foreach ( $headers as $name => $header ) {
+			$nameLower = strtolower( $name );
+			if ( in_array( $nameLower, [ 'range', 'if-modified-since' ], true ) ) {
+				$optHeaders[$nameLower] = $header;
+			} else {
+				$rawHeaders[] = "$name: $header";
+			}
+		}
+		return [ $rawHeaders, $optHeaders ];
+	}
+
 	/**
 	 * @param string $path Local filesystem path to a file
 	 * @param array $params Options map, which includes: