mirror of
https://github.com/classilla/tenfourfox.git
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231 lines
8.3 KiB
C++
231 lines
8.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; 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 nsIOService_h__
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#define nsIOService_h__
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#include "nsStringFwd.h"
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#include "nsIIOService2.h"
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#include "nsTArray.h"
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#include "nsCOMPtr.h"
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#include "nsWeakPtr.h"
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#include "nsIObserver.h"
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#include "nsWeakReference.h"
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#include "nsINetUtil.h"
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#include "nsIChannelEventSink.h"
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#include "nsCategoryCache.h"
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#include "nsISpeculativeConnect.h"
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#include "nsDataHashtable.h"
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#include "mozilla/Atomics.h"
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#include "mozilla/Attributes.h"
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#include "prtime.h"
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#include "nsICaptivePortalService.h"
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#define NS_N(x) (sizeof(x)/sizeof(*x))
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// We don't want to expose this observer topic.
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// Intended internal use only for remoting offline/inline events.
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// See Bug 552829
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#define NS_IPC_IOSERVICE_SET_OFFLINE_TOPIC "ipc:network:set-offline"
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#define NS_IPC_IOSERVICE_SET_CONNECTIVITY_TOPIC "ipc:network:set-connectivity"
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static const char gScheme[][sizeof("resource")] =
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{"chrome", "file", "http", "https", "jar", "data", "resource"};
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class nsAsyncRedirectVerifyHelper;
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class nsINetworkLinkService;
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class nsIPrefBranch;
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class nsIProtocolProxyService2;
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class nsIProxyInfo;
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class nsPIDNSService;
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class nsPISocketTransportService;
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namespace mozilla {
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namespace net {
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class NeckoChild;
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} // namespace net
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} // namespace mozilla
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class nsIOService final : public nsIIOService2
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, public nsIObserver
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, public nsINetUtil
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, public nsISpeculativeConnect
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, public nsSupportsWeakReference
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, public nsIIOServiceInternal
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{
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public:
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_DECL_NSIIOSERVICE
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NS_DECL_NSIIOSERVICE2
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NS_DECL_NSIOBSERVER
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NS_DECL_NSINETUTIL
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NS_DECL_NSISPECULATIVECONNECT
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NS_DECL_NSIIOSERVICEINTERNAL
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// Gets the singleton instance of the IO Service, creating it as needed
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// Returns nullptr on out of memory or failure to initialize.
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// Returns an addrefed pointer.
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static nsIOService* GetInstance();
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nsresult Init();
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nsresult NewURI(const char* aSpec, nsIURI* aBaseURI,
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nsIURI* *result,
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nsIProtocolHandler* *hdlrResult);
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// Called by channels before a redirect happens. This notifies the global
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// redirect observers.
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nsresult AsyncOnChannelRedirect(nsIChannel* oldChan, nsIChannel* newChan,
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uint32_t flags,
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nsAsyncRedirectVerifyHelper *helper);
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bool IsOffline() { return mOffline; }
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PRIntervalTime LastOfflineStateChange() { return mLastOfflineStateChange; }
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PRIntervalTime LastConnectivityChange() { return mLastConnectivityChange; }
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PRIntervalTime LastNetworkLinkChange() { return mLastNetworkLinkChange; }
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bool IsShutdown() { return mShutdown; }
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bool IsLinkUp();
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// Should only be called from NeckoChild. Use SetAppOffline instead.
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void SetAppOfflineInternal(uint32_t appId, int32_t status);
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private:
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// These shouldn't be called directly:
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// - construct using GetInstance
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// - destroy using Release
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nsIOService();
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~nsIOService();
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nsresult SetConnectivityInternal(bool aConnectivity);
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nsresult OnNetworkLinkEvent(const char *data);
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nsresult GetCachedProtocolHandler(const char *scheme,
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nsIProtocolHandler* *hdlrResult,
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uint32_t start=0,
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uint32_t end=0);
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nsresult CacheProtocolHandler(const char *scheme,
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nsIProtocolHandler* hdlr);
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nsresult InitializeCaptivePortalService();
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nsresult RecheckCaptivePortalIfLocalRedirect(nsIChannel* newChan);
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// Prefs wrangling
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void PrefsChanged(nsIPrefBranch *prefs, const char *pref = nullptr);
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void GetPrefBranch(nsIPrefBranch **);
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void ParsePortList(nsIPrefBranch *prefBranch, const char *pref, bool remove);
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nsresult InitializeSocketTransportService();
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nsresult InitializeNetworkLinkService();
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// consolidated helper function
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void LookupProxyInfo(nsIURI *aURI, nsIURI *aProxyURI, uint32_t aProxyFlags,
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nsCString *aScheme, nsIProxyInfo **outPI);
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// notify content processes of offline status
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// 'status' must be a nsIAppOfflineInfo mode constant.
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void NotifyAppOfflineStatus(uint32_t appId, int32_t status);
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nsresult NewChannelFromURIWithProxyFlagsInternal(nsIURI* aURI,
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nsIURI* aProxyURI,
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uint32_t aProxyFlags,
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nsILoadInfo* aLoadInfo,
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nsIChannel** result);
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nsresult SpeculativeConnectInternal(nsIURI *aURI,
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nsIInterfaceRequestor *aCallbacks,
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bool aAnonymous);
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private:
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bool mOffline;
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bool mOfflineForProfileChange;
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bool mManageLinkStatus;
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bool mConnectivity;
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// If true, the connectivity state will be mirrored by IOService.offline
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// meaning if !mConnectivity, GetOffline() will return true
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bool mOfflineMirrorsConnectivity;
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// Used to handle SetOffline() reentrancy. See the comment in
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// SetOffline() for more details.
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bool mSettingOffline;
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bool mSetOfflineValue;
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bool mShutdown;
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nsCOMPtr<nsPISocketTransportService> mSocketTransportService;
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nsCOMPtr<nsPIDNSService> mDNSService;
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nsCOMPtr<nsIProtocolProxyService2> mProxyService;
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nsCOMPtr<nsICaptivePortalService> mCaptivePortalService;
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nsCOMPtr<nsINetworkLinkService> mNetworkLinkService;
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bool mNetworkLinkServiceInitialized;
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// Cached protocol handlers
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nsWeakPtr mWeakHandler[NS_N(gScheme)];
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// cached categories
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nsCategoryCache<nsIChannelEventSink> mChannelEventSinks;
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nsTArray<int32_t> mRestrictedPortList;
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bool mAutoDialEnabled;
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bool mNetworkNotifyChanged;
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int32_t mPreviousWifiState;
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// Hashtable of (appId, nsIAppOffineInfo::mode) pairs
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// that is used especially in IsAppOffline
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nsDataHashtable<nsUint32HashKey, int32_t> mAppsOfflineStatus;
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static bool sTelemetryEnabled;
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// These timestamps are needed for collecting telemetry on PR_Connect,
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// PR_ConnectContinue and PR_Close blocking time. If we spend very long
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// time in any of these functions we want to know if and what network
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// change has happened shortly before.
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mozilla::Atomic<PRIntervalTime> mLastOfflineStateChange;
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mozilla::Atomic<PRIntervalTime> mLastConnectivityChange;
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mozilla::Atomic<PRIntervalTime> mLastNetworkLinkChange;
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public:
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// Used for all default buffer sizes that necko allocates.
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static uint32_t gDefaultSegmentSize;
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static uint32_t gDefaultSegmentCount;
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};
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/**
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* This class is passed as the subject to a NotifyObservers call for the
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* "network:app-offline-status-changed" topic.
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* Observers will use the appId and mode to get the offline status of an app.
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*/
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class nsAppOfflineInfo : public nsIAppOfflineInfo
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{
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NS_DECL_THREADSAFE_ISUPPORTS
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public:
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nsAppOfflineInfo(uint32_t aAppId, int32_t aMode)
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: mAppId(aAppId), mMode(aMode)
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{
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}
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NS_IMETHODIMP GetMode(int32_t *aMode) override
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{
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*aMode = mMode;
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return NS_OK;
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}
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NS_IMETHODIMP GetAppId(uint32_t *aAppId) override
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{
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*aAppId = mAppId;
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return NS_OK;
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}
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private:
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virtual ~nsAppOfflineInfo() {}
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uint32_t mAppId;
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int32_t mMode;
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};
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/**
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* Reference to the IO service singleton. May be null.
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*/
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extern nsIOService* gIOService;
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#endif // nsIOService_h__
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