The Tor Browser: uriloader/prefetch/nsOfflineCacheUpdateService.cpp@6474c204b198 (annotated)

uriloader/prefetch/nsOfflineCacheUpdateService.cpp@6474c204b198 (annotated)

uriloader/prefetch/nsOfflineCacheUpdateService.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #if defined(MOZ_LOGGING)
 #define FORCE_PR_LOG
 #endif
 #include "OfflineCacheUpdateChild.h"
 #include "OfflineCacheUpdateParent.h"
 #include "nsXULAppAPI.h"
 #include "OfflineCacheUpdateGlue.h"
 #include "nsOfflineCacheUpdate.h"
 #include "nsCPrefetchService.h"
 #include "nsCURILoader.h"
 #include "nsIApplicationCacheContainer.h"
 #include "nsIApplicationCacheChannel.h"
 #include "nsIApplicationCacheService.h"
 #include "nsICache.h"
 #include "nsICacheService.h"
 #include "nsICacheSession.h"
 #include "nsICachingChannel.h"
 #include "nsIContent.h"
 #include "nsIDocShell.h"
 #include "nsIDocumentLoader.h"
 #include "nsIDOMElement.h"
 #include "nsIDOMWindow.h"
 #include "nsIDOMOfflineResourceList.h"
 #include "nsIDocument.h"
 #include "nsIObserverService.h"
 #include "nsIURL.h"
 #include "nsIWebProgress.h"
 #include "nsIWebNavigation.h"
 #include "nsICryptoHash.h"
 #include "nsICacheEntryDescriptor.h"
 #include "nsIPermissionManager.h"
 #include "nsIPrincipal.h"
 #include "nsIScriptSecurityManager.h"
 #include "nsNetCID.h"
 #include "nsNetUtil.h"
 #include "nsServiceManagerUtils.h"
 #include "nsStreamUtils.h"
 #include "nsThreadUtils.h"
 #include "nsProxyRelease.h"
 #include "prlog.h"
 #include "nsIAsyncVerifyRedirectCallback.h"
 #include "mozilla/Preferences.h"
 #include "mozilla/Attributes.h"
 #include "mozilla/unused.h"
 #include "nsIDiskSpaceWatcher.h"
 #include "nsIDocShell.h"
 #include "nsIDocShellTreeItem.h"
 #include "nsIDocShellTreeOwner.h"
 #include "mozilla/dom/TabChild.h"
 #include "mozilla/dom/PermissionMessageUtils.h"
 #include "nsContentUtils.h"
 #include "mozilla/unused.h"
 using namespace mozilla;
 using namespace mozilla::dom;
 static nsOfflineCacheUpdateService *gOfflineCacheUpdateService = nullptr;
 nsTHashtable<nsCStringHashKey>* nsOfflineCacheUpdateService::mAllowedDomains = nullptr;
 nsTHashtable<nsCStringHashKey>* nsOfflineCacheUpdateService::AllowedDomains()
 {
     if (!mAllowedDomains)
         mAllowedDomains = new nsTHashtable<nsCStringHashKey>();
     return mAllowedDomains;
 }
 typedef mozilla::docshell::OfflineCacheUpdateParent OfflineCacheUpdateParent;
 typedef mozilla::docshell::OfflineCacheUpdateChild OfflineCacheUpdateChild;
 typedef mozilla::docshell::OfflineCacheUpdateGlue OfflineCacheUpdateGlue;
 #if defined(PR_LOGGING)
 //
 // To enable logging (see prlog.h for full details):
 //
 //    set NSPR_LOG_MODULES=nsOfflineCacheUpdate:5
 //    set NSPR_LOG_FILE=offlineupdate.log
 //
 // this enables PR_LOG_ALWAYS level information and places all output in
 // the file offlineupdate.log
 //
 PRLogModuleInfo *gOfflineCacheUpdateLog;
 #endif
 #undef LOG
 #define LOG(args) PR_LOG(gOfflineCacheUpdateLog, 4, args)
 #undef LOG_ENABLED
 #define LOG_ENABLED() PR_LOG_TEST(gOfflineCacheUpdateLog, 4)
 namespace { // anon
 nsresult
 GetAppIDAndInBrowserFromWindow(nsIDOMWindow *aWindow,
                                uint32_t *aAppId,
                                bool *aInBrowser)
 {
     *aAppId = NECKO_NO_APP_ID;
     *aInBrowser = false;
     if (!aWindow) {
         return NS_OK;
     }
     nsCOMPtr<nsILoadContext> loadContext = do_GetInterface(aWindow);
     if (!loadContext) {
         return NS_OK;
     }
     nsresult rv;
     rv = loadContext->GetAppId(aAppId);
     NS_ENSURE_SUCCESS(rv, rv);
     rv = loadContext->GetIsInBrowserElement(aInBrowser);
     NS_ENSURE_SUCCESS(rv, rv);
     return NS_OK;
 }
 } // anon
 //-----------------------------------------------------------------------------
 // nsOfflineCachePendingUpdate
 //-----------------------------------------------------------------------------
 class nsOfflineCachePendingUpdate MOZ_FINAL : public nsIWebProgressListener
                                             , public nsSupportsWeakReference
 {
 public:
     NS_DECL_ISUPPORTS
     NS_DECL_NSIWEBPROGRESSLISTENER
     nsOfflineCachePendingUpdate(nsOfflineCacheUpdateService *aService,
                                 nsIURI *aManifestURI,
                                 nsIURI *aDocumentURI,
                                 nsIDOMDocument *aDocument)
         : mService(aService)
         , mManifestURI(aManifestURI)
         , mDocumentURI(aDocumentURI)
         , mDidReleaseThis(false)
         {
             mDocument = do_GetWeakReference(aDocument);
         }
 private:
     nsRefPtr<nsOfflineCacheUpdateService> mService;
     nsCOMPtr<nsIURI> mManifestURI;
     nsCOMPtr<nsIURI> mDocumentURI;
     nsCOMPtr<nsIWeakReference> mDocument;
     bool mDidReleaseThis;
 };
 NS_IMPL_ISUPPORTS(nsOfflineCachePendingUpdate,
                   nsIWebProgressListener,
                   nsISupportsWeakReference)
 //-----------------------------------------------------------------------------
 // nsOfflineCacheUpdateService::nsIWebProgressListener
 //-----------------------------------------------------------------------------
 NS_IMETHODIMP
 nsOfflineCachePendingUpdate::OnProgressChange(nsIWebProgress *aProgress,
                                               nsIRequest *aRequest,
                                               int32_t curSelfProgress,
                                               int32_t maxSelfProgress,
                                               int32_t curTotalProgress,
                                               int32_t maxTotalProgress)
 {
     NS_NOTREACHED("notification excluded in AddProgressListener(...)");
     return NS_OK;
 }
 NS_IMETHODIMP
 nsOfflineCachePendingUpdate::OnStateChange(nsIWebProgress* aWebProgress,
                                            nsIRequest *aRequest,
                                            uint32_t progressStateFlags,
                                            nsresult aStatus)
 {
     if (mDidReleaseThis) {
         return NS_OK;
     }
     nsCOMPtr<nsIDOMDocument> updateDoc = do_QueryReferent(mDocument);
     if (!updateDoc) {
         // The document that scheduled this update has gone away,
         // we don't need to listen anymore.
         aWebProgress->RemoveProgressListener(this);
         MOZ_ASSERT(!mDidReleaseThis);
         mDidReleaseThis = true;
         NS_RELEASE_THIS();
         return NS_OK;
     }
     if (!(progressStateFlags & STATE_STOP)) {
         return NS_OK;
     }
     nsCOMPtr<nsIDOMWindow> window;
     aWebProgress->GetDOMWindow(getter_AddRefs(window));
     if (!window) return NS_OK;
     nsCOMPtr<nsIDOMDocument> progressDoc;
     window->GetDocument(getter_AddRefs(progressDoc));
     if (!progressDoc) return NS_OK;
     if (!SameCOMIdentity(progressDoc, updateDoc)) {
         return NS_OK;
     }
     LOG(("nsOfflineCachePendingUpdate::OnStateChange [%p, doc=%p]",
          this, progressDoc.get()));
     // Only schedule the update if the document loaded successfully
     if (NS_SUCCEEDED(aStatus)) {
         // Get extended origin attributes
         uint32_t appId;
         bool isInBrowserElement;
         nsresult rv = GetAppIDAndInBrowserFromWindow(window, &appId, &isInBrowserElement);
         NS_ENSURE_SUCCESS(rv, rv);
         nsCOMPtr<nsIOfflineCacheUpdate> update;
         mService->Schedule(mManifestURI, mDocumentURI,
                            updateDoc, window, nullptr,
                            appId, isInBrowserElement, getter_AddRefs(update));
         if (mDidReleaseThis) {
             return NS_OK;
         }
     }
     aWebProgress->RemoveProgressListener(this);
     MOZ_ASSERT(!mDidReleaseThis);
     mDidReleaseThis = true;
     NS_RELEASE_THIS();
     return NS_OK;
 }
 NS_IMETHODIMP
 nsOfflineCachePendingUpdate::OnLocationChange(nsIWebProgress* aWebProgress,
                                               nsIRequest* aRequest,
                                               nsIURI *location,
                                               uint32_t aFlags)
 {
     NS_NOTREACHED("notification excluded in AddProgressListener(...)");
     return NS_OK;
 }
 NS_IMETHODIMP
 nsOfflineCachePendingUpdate::OnStatusChange(nsIWebProgress* aWebProgress,
                                             nsIRequest* aRequest,
                                             nsresult aStatus,
                                             const char16_t* aMessage)
 {
     NS_NOTREACHED("notification excluded in AddProgressListener(...)");
     return NS_OK;
 }
 NS_IMETHODIMP
 nsOfflineCachePendingUpdate::OnSecurityChange(nsIWebProgress *aWebProgress,
                                               nsIRequest *aRequest,
                                               uint32_t state)
 {
     NS_NOTREACHED("notification excluded in AddProgressListener(...)");
     return NS_OK;
 }
 //-----------------------------------------------------------------------------
 // nsOfflineCacheUpdateService::nsISupports
 //-----------------------------------------------------------------------------
 NS_IMPL_ISUPPORTS(nsOfflineCacheUpdateService,
                   nsIOfflineCacheUpdateService,
                   nsIObserver,
                   nsISupportsWeakReference)
 //-----------------------------------------------------------------------------
 // nsOfflineCacheUpdateService <public>
 //-----------------------------------------------------------------------------
 nsOfflineCacheUpdateService::nsOfflineCacheUpdateService()
     : mDisabled(false)
     , mUpdateRunning(false)
     , mLowFreeSpace(false)
 {
 }
 nsOfflineCacheUpdateService::~nsOfflineCacheUpdateService()
 {
     gOfflineCacheUpdateService = nullptr;
 }
 nsresult
 nsOfflineCacheUpdateService::Init()
 {
 #if defined(PR_LOGGING)
     if (!gOfflineCacheUpdateLog)
         gOfflineCacheUpdateLog = PR_NewLogModule("nsOfflineCacheUpdate");
 #endif
     // Observe xpcom-shutdown event
     nsCOMPtr<nsIObserverService> observerService =
       mozilla::services::GetObserverService();
     if (!observerService)
       return NS_ERROR_FAILURE;
     nsresult rv = observerService->AddObserver(this,
                                                NS_XPCOM_SHUTDOWN_OBSERVER_ID,
                                                true);
     NS_ENSURE_SUCCESS(rv, rv);
     // Get the current status of the disk in terms of free space and observe
     // low device storage notifications.
     nsCOMPtr<nsIDiskSpaceWatcher> diskSpaceWatcherService =
       do_GetService("@mozilla.org/toolkit/disk-space-watcher;1");
     if (diskSpaceWatcherService) {
       diskSpaceWatcherService->GetIsDiskFull(&mLowFreeSpace);
     } else {
       NS_WARNING("Could not get disk status from nsIDiskSpaceWatcher");
     }
     rv = observerService->AddObserver(this, "disk-space-watcher", false);
     NS_ENSURE_SUCCESS(rv, rv);
     gOfflineCacheUpdateService = this;
     return NS_OK;
 }
 /* static */
 nsOfflineCacheUpdateService *
 nsOfflineCacheUpdateService::GetInstance()
 {
     if (!gOfflineCacheUpdateService) {
         gOfflineCacheUpdateService = new nsOfflineCacheUpdateService();
         if (!gOfflineCacheUpdateService)
             return nullptr;
         NS_ADDREF(gOfflineCacheUpdateService);
         nsresult rv = gOfflineCacheUpdateService->Init();
         if (NS_FAILED(rv)) {
             NS_RELEASE(gOfflineCacheUpdateService);
             return nullptr;
         }
         return gOfflineCacheUpdateService;
     }
     NS_ADDREF(gOfflineCacheUpdateService);
     return gOfflineCacheUpdateService;
 }
 /* static */
 nsOfflineCacheUpdateService *
 nsOfflineCacheUpdateService::EnsureService()
 {
     if (!gOfflineCacheUpdateService) {
         // Make the service manager hold a long-lived reference to the service
         nsCOMPtr<nsIOfflineCacheUpdateService> service =
             do_GetService(NS_OFFLINECACHEUPDATESERVICE_CONTRACTID);
     }
     return gOfflineCacheUpdateService;
 }
 nsresult
 nsOfflineCacheUpdateService::ScheduleUpdate(nsOfflineCacheUpdate *aUpdate)
 {
     LOG(("nsOfflineCacheUpdateService::Schedule [%p, update=%p]",
          this, aUpdate));
     aUpdate->SetOwner(this);
     mUpdates.AppendElement(aUpdate);
     ProcessNextUpdate();
     return NS_OK;
 }
 NS_IMETHODIMP
 nsOfflineCacheUpdateService::ScheduleOnDocumentStop(nsIURI *aManifestURI,
                                                     nsIURI *aDocumentURI,
                                                     nsIDOMDocument *aDocument)
 {
     LOG(("nsOfflineCacheUpdateService::ScheduleOnDocumentStop [%p, manifestURI=%p, documentURI=%p doc=%p]",
          this, aManifestURI, aDocumentURI, aDocument));
     nsCOMPtr<nsIDocument> doc = do_QueryInterface(aDocument);
     nsCOMPtr<nsIWebProgress> progress = do_QueryInterface(doc->GetContainer());
     NS_ENSURE_TRUE(progress, NS_ERROR_INVALID_ARG);
     // Proceed with cache update
     nsRefPtr<nsOfflineCachePendingUpdate> update =
         new nsOfflineCachePendingUpdate(this, aManifestURI,
                                         aDocumentURI, aDocument);
     NS_ENSURE_TRUE(update, NS_ERROR_OUT_OF_MEMORY);
     nsresult rv = progress->AddProgressListener
         (update, nsIWebProgress::NOTIFY_STATE_DOCUMENT);
     NS_ENSURE_SUCCESS(rv, rv);
     // The update will release when it has scheduled itself.
     unused << update.forget();
     return NS_OK;
 }
 nsresult
 nsOfflineCacheUpdateService::UpdateFinished(nsOfflineCacheUpdate *aUpdate)
 {
     LOG(("nsOfflineCacheUpdateService::UpdateFinished [%p, update=%p]",
          this, aUpdate));
     NS_ASSERTION(mUpdates.Length() > 0 &&
                  mUpdates[0] == aUpdate, "Unknown update completed");
     // keep this item alive until we're done notifying observers
     nsRefPtr<nsOfflineCacheUpdate> update = mUpdates[0];
     mUpdates.RemoveElementAt(0);
     mUpdateRunning = false;
     ProcessNextUpdate();
     return NS_OK;
 }
 //-----------------------------------------------------------------------------
 // nsOfflineCacheUpdateService <private>
 //-----------------------------------------------------------------------------
 nsresult
 nsOfflineCacheUpdateService::ProcessNextUpdate()
 {
     LOG(("nsOfflineCacheUpdateService::ProcessNextUpdate [%p, num=%d]",
          this, mUpdates.Length()));
     if (mDisabled)
         return NS_ERROR_ABORT;
     if (mUpdateRunning)
         return NS_OK;
     if (mUpdates.Length() > 0) {
         mUpdateRunning = true;
         // Canceling the update before Begin() call will make the update
         // asynchronously finish with an error.
         if (mLowFreeSpace) {
             mUpdates[0]->Cancel();
         }
         return mUpdates[0]->Begin();
     }
     return NS_OK;
 }
 //-----------------------------------------------------------------------------
 // nsOfflineCacheUpdateService::nsIOfflineCacheUpdateService
 //-----------------------------------------------------------------------------
 NS_IMETHODIMP
 nsOfflineCacheUpdateService::GetNumUpdates(uint32_t *aNumUpdates)
 {
     LOG(("nsOfflineCacheUpdateService::GetNumUpdates [%p]", this));
     *aNumUpdates = mUpdates.Length();
     return NS_OK;
 }
 NS_IMETHODIMP
 nsOfflineCacheUpdateService::GetUpdate(uint32_t aIndex,
                                        nsIOfflineCacheUpdate **aUpdate)
 {
     LOG(("nsOfflineCacheUpdateService::GetUpdate [%p, %d]", this, aIndex));
     if (aIndex < mUpdates.Length()) {
         NS_ADDREF(*aUpdate = mUpdates[aIndex]);
     } else {
         *aUpdate = nullptr;
     }
     return NS_OK;
 }
 nsresult
 nsOfflineCacheUpdateService::FindUpdate(nsIURI *aManifestURI,
                                         uint32_t aAppID,
                                         bool aInBrowser,
                                         nsOfflineCacheUpdate **aUpdate)
 {
     nsresult rv;
     nsCOMPtr<nsIApplicationCacheService> cacheService =
         do_GetService(NS_APPLICATIONCACHESERVICE_CONTRACTID, &rv);
     NS_ENSURE_SUCCESS(rv, rv);
     nsAutoCString groupID;
     rv = cacheService->BuildGroupIDForApp(aManifestURI,
                                           aAppID, aInBrowser,
                                           groupID);
     NS_ENSURE_SUCCESS(rv, rv);
     nsRefPtr<nsOfflineCacheUpdate> update;
     for (uint32_t i = 0; i < mUpdates.Length(); i++) {
         update = mUpdates[i];
         bool partial;
         rv = update->GetPartial(&partial);
         NS_ENSURE_SUCCESS(rv, rv);
         if (partial) {
             // Partial updates aren't considered
             continue;
         }
         if (update->IsForGroupID(groupID)) {
             update.swap(*aUpdate);
             return NS_OK;
         }
     }
     return NS_ERROR_NOT_AVAILABLE;
 }
 nsresult
 nsOfflineCacheUpdateService::Schedule(nsIURI *aManifestURI,
                                       nsIURI *aDocumentURI,
                                       nsIDOMDocument *aDocument,
                                       nsIDOMWindow* aWindow,
                                       nsIFile* aCustomProfileDir,
                                       uint32_t aAppID,
                                       bool aInBrowser,
                                       nsIOfflineCacheUpdate **aUpdate)
 {
     nsCOMPtr<nsIOfflineCacheUpdate> update;
     if (GeckoProcessType_Default != XRE_GetProcessType()) {
         update = new OfflineCacheUpdateChild(aWindow);
     }
     else {
         update = new OfflineCacheUpdateGlue();
     }
     nsresult rv;
     if (aWindow) {
       // Ensure there is window.applicationCache object that is
       // responsible for association of the new applicationCache
       // with the corresponding document.  Just ignore the result.
       nsCOMPtr<nsIDOMOfflineResourceList> appCacheWindowObject;
       aWindow->GetApplicationCache(getter_AddRefs(appCacheWindowObject));
     }
     rv = update->Init(aManifestURI, aDocumentURI, aDocument,
                       aCustomProfileDir, aAppID, aInBrowser);
     NS_ENSURE_SUCCESS(rv, rv);
     rv = update->Schedule();
     NS_ENSURE_SUCCESS(rv, rv);
     NS_ADDREF(*aUpdate = update);
     return NS_OK;
 }
 NS_IMETHODIMP
 nsOfflineCacheUpdateService::ScheduleUpdate(nsIURI *aManifestURI,
                                             nsIURI *aDocumentURI,
                                             nsIDOMWindow *aWindow,
                                             nsIOfflineCacheUpdate **aUpdate)
 {
     // Get extended origin attributes
     uint32_t appId;
     bool isInBrowser;
     nsresult rv = GetAppIDAndInBrowserFromWindow(aWindow, &appId, &isInBrowser);
     NS_ENSURE_SUCCESS(rv, rv);
     return Schedule(aManifestURI, aDocumentURI, nullptr, aWindow, nullptr,
                     appId, isInBrowser, aUpdate);
 }
 NS_IMETHODIMP
 nsOfflineCacheUpdateService::ScheduleAppUpdate(nsIURI *aManifestURI,
                                                nsIURI *aDocumentURI,
                                                uint32_t aAppID, bool aInBrowser,
                                                nsIFile *aProfileDir,
                                                nsIOfflineCacheUpdate **aUpdate)
 {
     return Schedule(aManifestURI, aDocumentURI, nullptr, nullptr, aProfileDir,
                     aAppID, aInBrowser, aUpdate);
 }
 NS_IMETHODIMP nsOfflineCacheUpdateService::CheckForUpdate(nsIURI *aManifestURI,
                                                           uint32_t aAppID,
                                                           bool aInBrowser,
                                                           nsIObserver *aObserver)
 {
     if (GeckoProcessType_Default != XRE_GetProcessType()) {
         // Not intended to support this on child processes
         return NS_ERROR_NOT_IMPLEMENTED;
     }
     nsCOMPtr<nsIOfflineCacheUpdate> update = new OfflineCacheUpdateGlue();
     nsresult rv;
     rv = update->InitForUpdateCheck(aManifestURI, aAppID, aInBrowser, aObserver);
     NS_ENSURE_SUCCESS(rv, rv);
     rv = update->Schedule();
     NS_ENSURE_SUCCESS(rv, rv);
     return NS_OK;
 }
 //-----------------------------------------------------------------------------
 // nsOfflineCacheUpdateService::nsIObserver
 //-----------------------------------------------------------------------------
 NS_IMETHODIMP
 nsOfflineCacheUpdateService::Observe(nsISupports     *aSubject,
                                      const char      *aTopic,
                                      const char16_t *aData)
 {
     if (!strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) {
         if (mUpdates.Length() > 0)
             mUpdates[0]->Cancel();
         mDisabled = true;
     }
     if (!strcmp(aTopic, "disk-space-watcher")) {
         if (NS_LITERAL_STRING("full").Equals(aData)) {
             mLowFreeSpace = true;
             for (uint32_t i = 0; i < mUpdates.Length(); i++) {
                 mUpdates[i]->Cancel();
             }
         } else if (NS_LITERAL_STRING("free").Equals(aData)) {
             mLowFreeSpace = false;
         }
     }
     return NS_OK;
 }
 //-----------------------------------------------------------------------------
 // nsOfflineCacheUpdateService::nsIOfflineCacheUpdateService
 //-----------------------------------------------------------------------------
 static nsresult
 OfflineAppPermForPrincipal(nsIPrincipal *aPrincipal,
                            nsIPrefBranch *aPrefBranch,
                            bool pinned,
                            bool *aAllowed)
 {
     *aAllowed = false;
     if (!aPrincipal)
         return NS_ERROR_INVALID_ARG;
     nsCOMPtr<nsIURI> uri;
     aPrincipal->GetURI(getter_AddRefs(uri));
     if (!uri)
         return NS_OK;
     nsCOMPtr<nsIURI> innerURI = NS_GetInnermostURI(uri);
     if (!innerURI)
         return NS_OK;
     // only http and https applications can use offline APIs.
     bool match;
     nsresult rv = innerURI->SchemeIs("http", &match);
     NS_ENSURE_SUCCESS(rv, rv);
     if (!match) {
         rv = innerURI->SchemeIs("https", &match);
         NS_ENSURE_SUCCESS(rv, rv);
         if (!match) {
             return NS_OK;
         }
     }
     nsAutoCString domain;
     rv = innerURI->GetAsciiHost(domain);
     NS_ENSURE_SUCCESS(rv, rv);
     if (nsOfflineCacheUpdateService::AllowedDomains()->Contains(domain)) {
         *aAllowed = true;
         return NS_OK;
     }
     nsCOMPtr<nsIPermissionManager> permissionManager =
         do_GetService(NS_PERMISSIONMANAGER_CONTRACTID);
     if (!permissionManager) {
         return NS_OK;
     }
     uint32_t perm;
     const char *permName = pinned ? "pin-app" : "offline-app";
     permissionManager->TestExactPermissionFromPrincipal(aPrincipal, permName, &perm);
     if (perm == nsIPermissionManager::ALLOW_ACTION ||
         perm == nsIOfflineCacheUpdateService::ALLOW_NO_WARN) {
         *aAllowed = true;
     }
     // offline-apps.allow_by_default is now effective at the cache selection
     // algorithm code (nsContentSink).
     return NS_OK;
 }
 NS_IMETHODIMP
 nsOfflineCacheUpdateService::OfflineAppAllowed(nsIPrincipal *aPrincipal,
                                                nsIPrefBranch *aPrefBranch,
                                                bool *aAllowed)
 {
     return OfflineAppPermForPrincipal(aPrincipal, aPrefBranch, false, aAllowed);
 }
 NS_IMETHODIMP
 nsOfflineCacheUpdateService::OfflineAppAllowedForURI(nsIURI *aURI,
                                                      nsIPrefBranch *aPrefBranch,
                                                      bool *aAllowed)
 {
     nsCOMPtr<nsIPrincipal> principal;
     nsContentUtils::GetSecurityManager()->
         GetNoAppCodebasePrincipal(aURI, getter_AddRefs(principal));
     return OfflineAppPermForPrincipal(principal, aPrefBranch, false, aAllowed);
 }
 nsresult
 nsOfflineCacheUpdateService::OfflineAppPinnedForURI(nsIURI *aDocumentURI,
                                                     nsIPrefBranch *aPrefBranch,
                                                     bool *aPinned)
 {
     nsCOMPtr<nsIPrincipal> principal;
     nsContentUtils::GetSecurityManager()->
         GetNoAppCodebasePrincipal(aDocumentURI, getter_AddRefs(principal));
     return OfflineAppPermForPrincipal(principal, aPrefBranch, true, aPinned);
 }
 NS_IMETHODIMP
 nsOfflineCacheUpdateService::AllowOfflineApp(nsIDOMWindow *aWindow,
                                              nsIPrincipal *aPrincipal)
 {
     nsresult rv;
     if (GeckoProcessType_Default != XRE_GetProcessType()) {
         TabChild* child = TabChild::GetFrom(aWindow);
         NS_ENSURE_TRUE(child, NS_ERROR_FAILURE);
         if (!child->SendSetOfflinePermission(IPC::Principal(aPrincipal))) {
             return NS_ERROR_FAILURE;
         }
         nsAutoCString domain;
         rv = aPrincipal->GetBaseDomain(domain);
         NS_ENSURE_SUCCESS(rv, rv);
         nsOfflineCacheUpdateService::AllowedDomains()->PutEntry(domain);
     }
     else {
         nsCOMPtr<nsIPermissionManager> permissionManager =
             do_GetService(NS_PERMISSIONMANAGER_CONTRACTID);
         if (!permissionManager)
             return NS_ERROR_NOT_AVAILABLE;
         rv = permissionManager->AddFromPrincipal(
             aPrincipal, "offline-app", nsIPermissionManager::ALLOW_ACTION,
             nsIPermissionManager::EXPIRE_NEVER, 0);
         NS_ENSURE_SUCCESS(rv, rv);
     }
     return NS_OK;
 }

The Tor Browser / annotate

uriloader/prefetch/nsOfflineCacheUpdateService.cpp@6474c204b198 (annotated)

uriloader/prefetch/nsOfflineCacheUpdateService.cpp