registration: Improve duplicate config setting exception

[lhc/web/wiklou.git] / thumb.php

diff --git a/thumb.php b/thumb.php
index 7c3e757..3b71413 100644 (file)
--- a/thumb.php
+++ b/thumb.php
@@ -235,9 +235,9 @@ function wfStreamThumb( array $params ) {
                // Fix IE brokenness
                $imsString = preg_replace( '/;.*$/', '', $_SERVER["HTTP_IF_MODIFIED_SINCE"] );
                // Calculate time
-               MediaWiki\suppressWarnings();
+               Wikimedia\suppressWarnings();
                $imsUnix = strtotime( $imsString );
-               MediaWiki\restoreWarnings();
+               Wikimedia\restoreWarnings();
                if ( wfTimestamp( TS_UNIX, $img->getTimestamp() ) <= $imsUnix ) {
                        HttpStatus::header( 304 );
                        return;
@@ -337,7 +337,16 @@ function wfStreamThumb( array $params ) {
                return;
        }
 
-       list( $thumb, $errorMsg ) = wfGenerateThumbnail( $img, $params, $thumbName, $thumbPath );
+       $thumbProxyUrl = $img->getRepo()->getThumbProxyUrl();
+
+       if ( strlen( $thumbProxyUrl ) ) {
+               wfProxyThumbnailRequest( $img, $thumbName );
+               // No local fallback when in proxy mode
+               return;
+       } else {
+               // Generate the thumbnail locally
+               list( $thumb, $errorMsg ) = wfGenerateThumbnail( $img, $params, $thumbName, $thumbPath );
+       }
 
        /** @var MediaTransformOutput|MediaTransformError|bool $thumb */
 
@@ -377,6 +386,43 @@ function wfStreamThumb( array $params ) {
        }
 }
 
+/**
+ * Proxies thumbnail request to a service that handles thumbnailing
+ *
+ * @param File $img
+ * @param string $thumbName
+ */
+function wfProxyThumbnailRequest( $img, $thumbName ) {
+       $thumbProxyUrl = $img->getRepo()->getThumbProxyUrl();
+
+       // Instead of generating the thumbnail ourselves, we proxy the request to another service
+       $thumbProxiedUrl = $thumbProxyUrl . $img->getThumbRel( $thumbName );
+
+       $req = MWHttpRequest::factory( $thumbProxiedUrl );
+       $secret = $img->getRepo()->getThumbProxySecret();
+
+       // Pass a secret key shared with the proxied service if any
+       if ( strlen( $secret ) ) {
+               $req->setHeader( 'X-Swift-Secret', $secret );
+       }
+
+       // Send request to proxied service
+       $status = $req->execute();
+
+       // Simply serve the response from the proxied service as-is
+       header( 'HTTP/1.1 ' . $req->getStatus() );
+
+       $headers = $req->getResponseHeaders();
+
+       foreach ( $headers as $key => $values ) {
+               foreach ( $values as $value ) {
+                       header( $key . ': ' . $value, false );
+               }
+       }
+
+       echo $req->getContent();
+}
+
 /**
  * Actually try to generate a new thumbnail
  *
@@ -572,7 +618,7 @@ function wfExtractThumbParams( $file, $params ) {
  * @return void
  */
 function wfThumbErrorText( $status, $msgText ) {
-       wfThumbError( $status, htmlspecialchars( $msgText ) );
+       wfThumbError( $status, htmlspecialchars( $msgText, ENT_NOQUOTES ) );
 }
 
 /**
@@ -602,9 +648,10 @@ function wfThumbError( $status, $msgHtml, $msgText = null, $context = [] ) {
        if ( $wgShowHostnames ) {
                header( 'X-MW-Thumbnail-Renderer: ' . wfHostname() );
                $url = htmlspecialchars(
-                       isset( $_SERVER['REQUEST_URI'] ) ? $_SERVER['REQUEST_URI'] : ''
+                       isset( $_SERVER['REQUEST_URI'] ) ? $_SERVER['REQUEST_URI'] : '',
+                       ENT_NOQUOTES
                );
-               $hostname = htmlspecialchars( wfHostname() );
+               $hostname = htmlspecialchars( wfHostname(), ENT_NOQUOTES );
                $debug = "<!-- $url -->\n<!-- $hostname -->\n";
        } else {
                $debug = '';