Implementing mixed content for forms posting to insecure location from secure ones

Source/core/loader/MixedContentChecker.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 17 matching lines @@
 
 #include "config.h"
 #include "core/loader/MixedContentChecker.h"
 
 #include "core/dom/Document.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
 #include "core/loader/FrameLoader.h"
 #include "core/loader/FrameLoaderClient.h"
 #include "platform/weborigin/SecurityOrigin.h"
+#include "wtf/text/StringBuilder.h"
 
 namespace WebCore {
 
 MixedContentChecker::MixedContentChecker(LocalFrame* frame)
     : m_frame(frame)
 {
 }
 
 FrameLoaderClient* MixedContentChecker::client() const
 {
     return m_frame->loader().client();
 }
 
 // static
 bool MixedContentChecker::isMixedContent(SecurityOrigin* securityOrigin, const KURL& url)
 {
     if (securityOrigin->protocol() != "https")
         return false; // We only care about HTTPS security origins.
 
     // We're in a secure context, so |url| is mixed content if it's insecure.
     return !SecurityOrigin::isSecure(url);
 }
 
-bool MixedContentChecker::canDisplayInsecureContent(SecurityOrigin* securityOrigin, const KURL& url) const
+bool MixedContentChecker::canDisplayInsecureContentInternal(SecurityOrigin* securityOrigin, const KURL& url, const MixedContentType type) const
 {
     if (!isMixedContent(securityOrigin, url))
         return true;
 
     Settings* settings = m_frame->settings();
     bool allowed = client()->allowDisplayingInsecureContent(settings && settings->allowDisplayOfInsecureContent(), securityOrigin, url);
-    logWarning(allowed, "displayed", url);
+    logWarning(allowed, url, type);
 
     if (allowed)
         client()->didDisplayInsecureContent();
 
     return allowed;
 }
 
-bool MixedContentChecker::canRunInsecureContentInternal(SecurityOrigin* securityOrigin, const KURL& url, bool isWebSocket) const
+bool MixedContentChecker::canRunInsecureContentInternal(SecurityOrigin* securityOrigin, const KURL& url, const MixedContentType type) const
 {
     if (!isMixedContent(securityOrigin, url))
         return true;
 
     Settings* settings = m_frame->settings();
-    bool allowedPerSettings = settings && (settings->allowRunningOfInsecureContent() || (isWebSocket && settings->allowConnectingInsecureWebSocket()));
+    bool allowedPerSettings = settings && (settings->allowRunningOfInsecureContent() || ((type == WebSocket) && settings->allowConnectingInsecureWebSocket()));
     bool allowed = client()->allowRunningInsecureContent(allowedPerSettings, securityOrigin, url);
-    logWarning(allowed, "ran", url);
+    logWarning(allowed, url, type);
 
     if (allowed)
         client()->didRunInsecureContent(securityOrigin, url);
 
     return allowed;
 }
 
-void MixedContentChecker::logWarning(bool allowed, const String& action, const KURL& target) const
+void MixedContentChecker::logWarning(bool allowed, const KURL& target, const MixedContentType type) const
 {
-    String message = String(allowed ? "" : "[blocked] ") + "The page at '" + m_frame->document()->url().elidedString() + "' was loaded over HTTPS, but " + action + " insecure content from '" + target.elidedString() + "': this content should also be loaded over HTTPS.\n";
+    StringBuilder message;
+    message.append((allowed ? "" : "[blocked] "));
+    message.append("The page at '" + m_frame->document()->url().elidedString() + "' was loaded over HTTPS, but ");
+    switch (type) {
+    case Display:
+        message.append("displayed insecure content from '" + target.elidedString() + "': this content should also be loaded over HTTPS.\n");
+        break;
+    case Execution:
+    case WebSocket:
+        message.append("ran insecure content from '" + target.elidedString() + "': this content should also be loaded over HTTPS.\n");
+        break;
+    case Submission:
+        message.append("is submitting data to an insecure location at '" + target.elidedString() + "': this content should also be submitted over HTTPS.\n");
+        break;
+    }
     MessageLevel messageLevel = allowed ? WarningMessageLevel : ErrorMessageLevel;
-    m_frame->document()->addConsoleMessage(SecurityMessageSource, messageLevel, message);
+    m_frame->document()->addConsoleMessage(SecurityMessageSource, messageLevel, message.toString());
 }
 
 } // namespace WebCore