michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0:  * vim: ft=cpp tw=78 sw=4 et ts=8
michael@0:  *
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsWebBrowserContentPolicy.h"
michael@0: #include "nsIDocShell.h"
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsContentPolicyUtils.h"
michael@0: #include "nsIContentViewer.h"
michael@0: 
michael@0: nsWebBrowserContentPolicy::nsWebBrowserContentPolicy()
michael@0: {
michael@0:     MOZ_COUNT_CTOR(nsWebBrowserContentPolicy);
michael@0: }
michael@0: 
michael@0: nsWebBrowserContentPolicy::~nsWebBrowserContentPolicy()
michael@0: {
michael@0:     MOZ_COUNT_DTOR(nsWebBrowserContentPolicy);
michael@0: }
michael@0: 
michael@0: NS_IMPL_ISUPPORTS(nsWebBrowserContentPolicy, nsIContentPolicy)
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsWebBrowserContentPolicy::ShouldLoad(uint32_t          contentType,
michael@0:                                       nsIURI           *contentLocation,
michael@0:                                       nsIURI           *requestingLocation,
michael@0:                                       nsISupports      *requestingContext,
michael@0:                                       const nsACString &mimeGuess,
michael@0:                                       nsISupports      *extra,
michael@0:                                       nsIPrincipal     *requestPrincipal,
michael@0:                                       int16_t          *shouldLoad)
michael@0: {
michael@0:     NS_PRECONDITION(shouldLoad, "Null out param");
michael@0: 
michael@0:     *shouldLoad = nsIContentPolicy::ACCEPT;
michael@0: 
michael@0:     nsIDocShell *shell = NS_CP_GetDocShellFromContext(requestingContext);
michael@0:     /* We're going to dereference shell, so make sure it isn't null */
michael@0:     if (!shell) {
michael@0:         return NS_OK;
michael@0:     }
michael@0:     
michael@0:     nsresult rv;
michael@0:     bool allowed = true;
michael@0: 
michael@0:     switch (contentType) {
michael@0:       case nsIContentPolicy::TYPE_SCRIPT:
michael@0:         rv = shell->GetAllowJavascript(&allowed);
michael@0:         break;
michael@0:       case nsIContentPolicy::TYPE_SUBDOCUMENT:
michael@0:         rv = shell->GetAllowSubframes(&allowed);
michael@0:         break;
michael@0: #if 0
michael@0:       /* XXXtw: commented out in old code; add during conpol phase 2 */
michael@0:       case nsIContentPolicy::TYPE_REFRESH:
michael@0:         rv = shell->GetAllowMetaRedirects(&allowed); /* meta _refresh_ */
michael@0:         break;
michael@0: #endif
michael@0:       case nsIContentPolicy::TYPE_IMAGE:
michael@0:         rv = shell->GetAllowImages(&allowed);
michael@0:         break;
michael@0:       default:
michael@0:         return NS_OK;
michael@0:     }
michael@0: 
michael@0:     if (NS_SUCCEEDED(rv) && !allowed) {
michael@0:         *shouldLoad = nsIContentPolicy::REJECT_TYPE;
michael@0:     }
michael@0:     return rv;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsWebBrowserContentPolicy::ShouldProcess(uint32_t          contentType,
michael@0:                                          nsIURI           *contentLocation,
michael@0:                                          nsIURI           *requestingLocation,
michael@0:                                          nsISupports      *requestingContext,
michael@0:                                          const nsACString &mimeGuess,
michael@0:                                          nsISupports      *extra,
michael@0:                                          nsIPrincipal     *requestPrincipal,
michael@0:                                          int16_t          *shouldProcess)
michael@0: {
michael@0:     NS_PRECONDITION(shouldProcess, "Null out param");
michael@0: 
michael@0:     *shouldProcess = nsIContentPolicy::ACCEPT;
michael@0: 
michael@0:     // Object tags will always open channels with TYPE_OBJECT, but may end up
michael@0:     // loading with TYPE_IMAGE or TYPE_DOCUMENT as their final type, so we block
michael@0:     // actual-plugins at the process stage
michael@0:     if (contentType != nsIContentPolicy::TYPE_OBJECT) {
michael@0:         return NS_OK;
michael@0:     }
michael@0: 
michael@0:     nsIDocShell *shell = NS_CP_GetDocShellFromContext(requestingContext);
michael@0:     if (shell && (!shell->PluginsAllowedInCurrentDoc())) {
michael@0:         *shouldProcess = nsIContentPolicy::REJECT_TYPE;
michael@0:     }
michael@0: 
michael@0:     return NS_OK;
michael@0: }