384 lines
12 KiB
C++
384 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsOfflineCacheUpdate_h__
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#define nsOfflineCacheUpdate_h__
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#include "nsIOfflineCacheUpdate.h"
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#include "nsAutoPtr.h"
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#include "nsCOMArray.h"
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#include "nsCOMPtr.h"
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#include "nsIChannelEventSink.h"
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#include "nsIDOMDocument.h"
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#include "nsIDOMNode.h"
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#include "nsIInterfaceRequestor.h"
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#include "nsIMutableArray.h"
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#include "nsIObserver.h"
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#include "nsIObserverService.h"
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#include "nsIApplicationCache.h"
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#include "nsIRequestObserver.h"
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#include "nsIRunnable.h"
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#include "nsIStreamListener.h"
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#include "nsIURI.h"
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#include "nsIWebProgressListener.h"
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#include "nsClassHashtable.h"
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#include "nsString.h"
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#include "nsTArray.h"
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#include "nsWeakReference.h"
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#include "nsICryptoHash.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/WeakPtr.h"
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#include "nsTHashtable.h"
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#include "nsHashKeys.h"
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class nsOfflineCacheUpdate;
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class nsOfflineCacheUpdateItem : public nsIStreamListener
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, public nsIRunnable
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, public nsIInterfaceRequestor
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, public nsIChannelEventSink
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIREQUESTOBSERVER
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NS_DECL_NSISTREAMLISTENER
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NS_DECL_NSIRUNNABLE
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NS_DECL_NSIINTERFACEREQUESTOR
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NS_DECL_NSICHANNELEVENTSINK
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nsOfflineCacheUpdateItem(nsIURI *aURI,
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nsIURI *aReferrerURI,
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nsIPrincipal* aLoadingPrincipal,
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nsIApplicationCache *aApplicationCache,
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nsIApplicationCache *aPreviousApplicationCache,
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uint32_t aType);
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nsCOMPtr<nsIURI> mURI;
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nsCOMPtr<nsIURI> mReferrerURI;
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nsCOMPtr<nsIPrincipal> mLoadingPrincipal;
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nsCOMPtr<nsIApplicationCache> mApplicationCache;
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nsCOMPtr<nsIApplicationCache> mPreviousApplicationCache;
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nsCString mCacheKey;
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uint32_t mItemType;
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nsresult OpenChannel(nsOfflineCacheUpdate *aUpdate);
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nsresult Cancel();
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nsresult GetRequestSucceeded(bool * succeeded);
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bool IsInProgress();
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bool IsScheduled();
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bool IsCompleted();
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nsresult GetStatus(uint16_t *aStatus);
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private:
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enum LoadStatus : uint16_t {
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UNINITIALIZED = 0U,
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REQUESTED = 1U,
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RECEIVING = 2U,
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LOADED = 3U
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};
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RefPtr<nsOfflineCacheUpdate> mUpdate;
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nsCOMPtr<nsIChannel> mChannel;
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uint16_t mState;
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protected:
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virtual ~nsOfflineCacheUpdateItem();
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int64_t mBytesRead;
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};
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class nsOfflineManifestItem : public nsOfflineCacheUpdateItem
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{
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public:
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NS_DECL_NSISTREAMLISTENER
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NS_DECL_NSIREQUESTOBSERVER
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nsOfflineManifestItem(nsIURI *aURI,
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nsIURI *aReferrerURI,
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nsIPrincipal* aLoadingPrincipal,
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nsIApplicationCache *aApplicationCache,
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nsIApplicationCache *aPreviousApplicationCache);
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virtual ~nsOfflineManifestItem();
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nsCOMArray<nsIURI> &GetExplicitURIs() { return mExplicitURIs; }
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nsCOMArray<nsIURI> &GetFallbackURIs() { return mFallbackURIs; }
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nsTArray<nsCString> &GetOpportunisticNamespaces()
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{ return mOpportunisticNamespaces; }
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nsIArray *GetNamespaces()
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{ return mNamespaces.get(); }
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bool ParseSucceeded()
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{ return (mParserState != PARSE_INIT && mParserState != PARSE_ERROR); }
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bool NeedsUpdate() { return mParserState != PARSE_INIT && mNeedsUpdate; }
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void GetManifestHash(nsCString &aManifestHash)
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{ aManifestHash = mManifestHashValue; }
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private:
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static NS_METHOD ReadManifest(nsIInputStream *aInputStream,
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void *aClosure,
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const char *aFromSegment,
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uint32_t aOffset,
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uint32_t aCount,
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uint32_t *aBytesConsumed);
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nsresult AddNamespace(uint32_t namespaceType,
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const nsCString &namespaceSpec,
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const nsCString &data);
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nsresult HandleManifestLine(const nsCString::const_iterator &aBegin,
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const nsCString::const_iterator &aEnd);
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/**
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* Saves "offline-manifest-hash" meta data from the old offline cache
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* token to mOldManifestHashValue member to be compared on
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* successfull load.
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*/
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nsresult GetOldManifestContentHash(nsIRequest *aRequest);
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/**
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* This method setups the mNeedsUpdate to false when hash value
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* of the just downloaded manifest file is the same as stored in cache's
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* "offline-manifest-hash" meta data. Otherwise stores the new value
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* to this meta data.
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*/
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nsresult CheckNewManifestContentHash(nsIRequest *aRequest);
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void ReadStrictFileOriginPolicyPref();
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enum {
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PARSE_INIT,
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PARSE_CACHE_ENTRIES,
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PARSE_FALLBACK_ENTRIES,
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PARSE_BYPASS_ENTRIES,
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PARSE_UNKNOWN_SECTION,
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PARSE_ERROR
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} mParserState;
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nsCString mReadBuf;
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nsCOMArray<nsIURI> mExplicitURIs;
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nsCOMArray<nsIURI> mFallbackURIs;
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// All opportunistic caching namespaces. Used to decide whether
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// to include previously-opportunistically-cached entries.
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nsTArray<nsCString> mOpportunisticNamespaces;
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// Array of nsIApplicationCacheNamespace objects specified by the
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// manifest.
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nsCOMPtr<nsIMutableArray> mNamespaces;
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bool mNeedsUpdate;
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bool mStrictFileOriginPolicy;
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// manifest hash data
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nsCOMPtr<nsICryptoHash> mManifestHash;
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bool mManifestHashInitialized;
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nsCString mManifestHashValue;
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nsCString mOldManifestHashValue;
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};
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class nsOfflineCacheUpdateOwner
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: public mozilla::SupportsWeakPtr<nsOfflineCacheUpdateOwner>
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{
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public:
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MOZ_DECLARE_WEAKREFERENCE_TYPENAME(nsOfflineCacheUpdateOwner)
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virtual ~nsOfflineCacheUpdateOwner() {}
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virtual nsresult UpdateFinished(nsOfflineCacheUpdate *aUpdate) = 0;
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};
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class nsOfflineCacheUpdate final : public nsIOfflineCacheUpdate
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, public nsIOfflineCacheUpdateObserver
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, public nsIRunnable
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, public nsOfflineCacheUpdateOwner
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIOFFLINECACHEUPDATE
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NS_DECL_NSIOFFLINECACHEUPDATEOBSERVER
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NS_DECL_NSIRUNNABLE
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nsOfflineCacheUpdate();
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static nsresult GetCacheKey(nsIURI *aURI, nsACString &aKey);
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nsresult Init();
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nsresult Begin();
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void LoadCompleted(nsOfflineCacheUpdateItem *aItem);
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void ManifestCheckCompleted(nsresult aStatus,
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const nsCString &aManifestHash);
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void StickDocument(nsIURI *aDocumentURI);
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void SetOwner(nsOfflineCacheUpdateOwner *aOwner);
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bool IsForGroupID(const nsCSubstring &groupID);
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bool IsForProfile(nsIFile* aCustomProfileDir);
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virtual nsresult UpdateFinished(nsOfflineCacheUpdate *aUpdate) override;
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protected:
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~nsOfflineCacheUpdate();
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friend class nsOfflineCacheUpdateItem;
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void OnByteProgress(uint64_t byteIncrement);
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private:
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nsresult InitInternal(nsIURI *aManifestURI, nsIPrincipal* aPrincipal);
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nsresult HandleManifest(bool *aDoUpdate);
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nsresult AddURI(nsIURI *aURI, uint32_t aItemType);
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nsresult ProcessNextURI();
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// Adds items from the previous cache witha type matching aType.
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// If namespaceFilter is non-null, only items matching the
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// specified namespaces will be added.
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nsresult AddExistingItems(uint32_t aType,
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nsTArray<nsCString>* namespaceFilter = nullptr);
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nsresult ScheduleImplicit();
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void AssociateDocuments(nsIApplicationCache* cache);
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bool CheckUpdateAvailability();
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void NotifyUpdateAvailability(bool updateAvailable);
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void GatherObservers(nsCOMArray<nsIOfflineCacheUpdateObserver> &aObservers);
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void NotifyState(uint32_t state);
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nsresult Finish();
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nsresult FinishNoNotify();
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void AsyncFinishWithError();
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// Find one non-pinned cache group and evict it.
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nsresult EvictOneNonPinned();
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enum {
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STATE_UNINITIALIZED,
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STATE_INITIALIZED,
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STATE_CHECKING,
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STATE_DOWNLOADING,
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STATE_CANCELLED,
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STATE_FINISHED
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} mState;
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mozilla::WeakPtr<nsOfflineCacheUpdateOwner> mOwner;
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bool mAddedItems;
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bool mPartialUpdate;
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bool mOnlyCheckUpdate;
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bool mSucceeded;
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bool mObsolete;
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nsCString mUpdateDomain;
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nsCString mGroupID;
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nsCOMPtr<nsIURI> mManifestURI;
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nsCOMPtr<nsIURI> mDocumentURI;
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nsCOMPtr<nsIPrincipal> mLoadingPrincipal;
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nsCOMPtr<nsIFile> mCustomProfileDir;
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uint32_t mAppID;
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bool mInBrowser;
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nsCOMPtr<nsIObserver> mUpdateAvailableObserver;
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nsCOMPtr<nsIApplicationCache> mApplicationCache;
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nsCOMPtr<nsIApplicationCache> mPreviousApplicationCache;
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nsCOMPtr<nsIObserverService> mObserverService;
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RefPtr<nsOfflineManifestItem> mManifestItem;
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/* Items being updated */
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uint32_t mItemsInProgress;
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nsTArray<RefPtr<nsOfflineCacheUpdateItem> > mItems;
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/* Clients watching this update for changes */
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nsCOMArray<nsIWeakReference> mWeakObservers;
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nsCOMArray<nsIOfflineCacheUpdateObserver> mObservers;
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/* Documents that requested this update */
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nsCOMArray<nsIURI> mDocumentURIs;
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/* Reschedule count. When an update is rescheduled due to
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* mismatched manifests, the reschedule count will be increased. */
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uint32_t mRescheduleCount;
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/* Whena an entry for a pinned app is retried, retries count is
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* increaded. */
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uint32_t mPinnedEntryRetriesCount;
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RefPtr<nsOfflineCacheUpdate> mImplicitUpdate;
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bool mPinned;
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uint64_t mByteProgress;
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};
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class nsOfflineCacheUpdateService final : public nsIOfflineCacheUpdateService
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, public nsIObserver
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, public nsOfflineCacheUpdateOwner
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, public nsSupportsWeakReference
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIOFFLINECACHEUPDATESERVICE
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NS_DECL_NSIOBSERVER
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nsOfflineCacheUpdateService();
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nsresult Init();
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nsresult ScheduleUpdate(nsOfflineCacheUpdate *aUpdate);
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nsresult FindUpdate(nsIURI *aManifestURI,
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uint32_t aAppID,
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bool aInBrowser,
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nsIFile *aCustomProfileDir,
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nsOfflineCacheUpdate **aUpdate);
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nsresult Schedule(nsIURI *aManifestURI,
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nsIURI *aDocumentURI,
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nsIPrincipal* aLoadingPrincipal,
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nsIDOMDocument *aDocument,
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nsIDOMWindow* aWindow,
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nsIFile* aCustomProfileDir,
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uint32_t aAppID,
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bool aInBrowser,
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nsIOfflineCacheUpdate **aUpdate);
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virtual nsresult UpdateFinished(nsOfflineCacheUpdate *aUpdate) override;
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/**
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* Returns the singleton nsOfflineCacheUpdateService without an addref, or
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* nullptr if the service couldn't be created.
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*/
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static nsOfflineCacheUpdateService *EnsureService();
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/** Addrefs and returns the singleton nsOfflineCacheUpdateService. */
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static nsOfflineCacheUpdateService *GetInstance();
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static nsresult OfflineAppPinnedForURI(nsIURI *aDocumentURI,
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nsIPrefBranch *aPrefBranch,
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bool *aPinned);
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static nsTHashtable<nsCStringHashKey>* AllowedDomains();
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private:
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~nsOfflineCacheUpdateService();
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nsresult ProcessNextUpdate();
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nsTArray<RefPtr<nsOfflineCacheUpdate> > mUpdates;
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static nsTHashtable<nsCStringHashKey>* mAllowedDomains;
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bool mDisabled;
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bool mUpdateRunning;
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bool mLowFreeSpace;
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};
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#endif
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