mirror of
https://github.com/mozilla/gecko-dev.git
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440 lines
15 KiB
C++
440 lines
15 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 nsHttpHandler_h__
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#define nsHttpHandler_h__
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#include "nsHttp.h"
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#include "nsHttpAuthCache.h"
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#include "nsHttpConnection.h"
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#include "nsHttpConnectionMgr.h"
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#include "ASpdySession.h"
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#include "nsXPIDLString.h"
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#include "nsString.h"
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#include "nsCOMPtr.h"
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#include "nsWeakReference.h"
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#include "nsIHttpProtocolHandler.h"
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#include "nsIProtocolProxyService.h"
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#include "nsIIOService.h"
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#include "nsIObserver.h"
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#include "nsIObserverService.h"
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#include "nsIStreamConverterService.h"
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#include "nsICacheSession.h"
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#include "nsICookieService.h"
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#include "nsIIDNService.h"
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#include "nsITimer.h"
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#include "nsIStrictTransportSecurityService.h"
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#include "nsISpeculativeConnect.h"
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class nsHttpConnectionInfo;
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class nsHttpHeaderArray;
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class nsHttpTransaction;
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class nsAHttpTransaction;
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class nsIHttpChannel;
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class nsIPrefBranch;
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//-----------------------------------------------------------------------------
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// nsHttpHandler - protocol handler for HTTP and HTTPS
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//-----------------------------------------------------------------------------
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class nsHttpHandler : public nsIHttpProtocolHandler
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, public nsIObserver
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, public nsSupportsWeakReference
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, public nsISpeculativeConnect
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIPROTOCOLHANDLER
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NS_DECL_NSIPROXIEDPROTOCOLHANDLER
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NS_DECL_NSIHTTPPROTOCOLHANDLER
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NS_DECL_NSIOBSERVER
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NS_DECL_NSISPECULATIVECONNECT
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nsHttpHandler();
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virtual ~nsHttpHandler();
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nsresult Init();
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nsresult AddStandardRequestHeaders(nsHttpHeaderArray *);
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nsresult AddConnectionHeader(nsHttpHeaderArray *,
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uint32_t capabilities);
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bool IsAcceptableEncoding(const char *encoding);
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const nsAFlatCString &UserAgent();
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nsHttpVersion HttpVersion() { return mHttpVersion; }
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nsHttpVersion ProxyHttpVersion() { return mProxyHttpVersion; }
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uint8_t ReferrerLevel() { return mReferrerLevel; }
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bool SendSecureXSiteReferrer() { return mSendSecureXSiteReferrer; }
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uint8_t RedirectionLimit() { return mRedirectionLimit; }
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PRIntervalTime IdleTimeout() { return mIdleTimeout; }
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PRIntervalTime SpdyTimeout() { return mSpdyTimeout; }
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uint16_t MaxRequestAttempts() { return mMaxRequestAttempts; }
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const char *DefaultSocketType() { return mDefaultSocketType.get(); /* ok to return null */ }
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nsIIDNService *IDNConverter() { return mIDNConverter; }
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uint32_t PhishyUserPassLength() { return mPhishyUserPassLength; }
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uint8_t GetQoSBits() { return mQoSBits; }
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uint16_t GetIdleSynTimeout() { return mIdleSynTimeout; }
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bool FastFallbackToIPv4() { return mFastFallbackToIPv4; }
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bool ProxyPipelining() { return mProxyPipelining; }
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uint32_t MaxSocketCount();
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bool EnforceAssocReq() { return mEnforceAssocReq; }
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bool IsPersistentHttpsCachingEnabled() { return mEnablePersistentHttpsCaching; }
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bool IsTelemetryEnabled() { return mTelemetryEnabled; }
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bool AllowExperiments() { return mTelemetryEnabled && mAllowExperiments; }
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bool IsSpdyEnabled() { return mEnableSpdy; }
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bool IsSpdyV2Enabled() { return mSpdyV2; }
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bool IsSpdyV3Enabled() { return mSpdyV3; }
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bool CoalesceSpdy() { return mCoalesceSpdy; }
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bool UseAlternateProtocol() { return mUseAlternateProtocol; }
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uint32_t SpdySendingChunkSize() { return mSpdySendingChunkSize; }
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uint32_t SpdySendBufferSize() { return mSpdySendBufferSize; }
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PRIntervalTime SpdyPingThreshold() { return mSpdyPingThreshold; }
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PRIntervalTime SpdyPingTimeout() { return mSpdyPingTimeout; }
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uint32_t ConnectTimeout() { return mConnectTimeout; }
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uint32_t ParallelSpeculativeConnectLimit() { return mParallelSpeculativeConnectLimit; }
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bool CritialRequestPrioritization() { return mCritialRequestPrioritization; }
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bool PromptTempRedirect() { return mPromptTempRedirect; }
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nsHttpAuthCache *AuthCache(bool aPrivate) {
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return aPrivate ? &mPrivateAuthCache : &mAuthCache;
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}
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nsHttpConnectionMgr *ConnMgr() { return mConnMgr; }
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// cache support
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bool UseCache() const { return mUseCache; }
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uint32_t GenerateUniqueID() { return ++mLastUniqueID; }
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uint32_t SessionStartTime() { return mSessionStartTime; }
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//
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// Connection management methods:
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//
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// - the handler only owns idle connections; it does not own active
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// connections.
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//
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// - the handler keeps a count of active connections to enforce the
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// steady-state max-connections pref.
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//
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// Called to kick-off a new transaction, by default the transaction
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// will be put on the pending transaction queue if it cannot be
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// initiated at this time. Callable from any thread.
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nsresult InitiateTransaction(nsHttpTransaction *trans, int32_t priority)
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{
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return mConnMgr->AddTransaction(trans, priority);
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}
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// Called to change the priority of an existing transaction that has
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// already been initiated.
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nsresult RescheduleTransaction(nsHttpTransaction *trans, int32_t priority)
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{
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return mConnMgr->RescheduleTransaction(trans, priority);
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}
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// Called to cancel a transaction, which may or may not be assigned to
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// a connection. Callable from any thread.
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nsresult CancelTransaction(nsHttpTransaction *trans, nsresult reason)
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{
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return mConnMgr->CancelTransaction(trans, reason);
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}
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// Called when a connection is done processing a transaction. Callable
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// from any thread.
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nsresult ReclaimConnection(nsHttpConnection *conn)
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{
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return mConnMgr->ReclaimConnection(conn);
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}
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nsresult ProcessPendingQ(nsHttpConnectionInfo *cinfo)
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{
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return mConnMgr->ProcessPendingQ(cinfo);
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}
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nsresult ProcessPendingQ()
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{
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return mConnMgr->ProcessPendingQ();
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}
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nsresult GetSocketThreadTarget(nsIEventTarget **target)
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{
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return mConnMgr->GetSocketThreadTarget(target);
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}
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nsresult SpeculativeConnect(nsHttpConnectionInfo *ci,
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nsIInterfaceRequestor *callbacks)
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{
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return mConnMgr->SpeculativeConnect(ci, callbacks);
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}
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//
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// The HTTP handler caches pointers to specific XPCOM services, and
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// provides the following helper routines for accessing those services:
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//
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nsresult GetStreamConverterService(nsIStreamConverterService **);
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nsresult GetIOService(nsIIOService** service);
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nsICookieService * GetCookieService(); // not addrefed
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nsIStrictTransportSecurityService * GetSTSService();
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// callable from socket thread only
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uint32_t Get32BitsOfPseudoRandom();
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// Called by the channel synchronously during asyncOpen
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void OnOpeningRequest(nsIHttpChannel *chan)
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{
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NotifyObservers(chan, NS_HTTP_ON_OPENING_REQUEST_TOPIC);
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}
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// Called by the channel before writing a request
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void OnModifyRequest(nsIHttpChannel *chan)
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{
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NotifyObservers(chan, NS_HTTP_ON_MODIFY_REQUEST_TOPIC);
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}
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// Called by the channel once headers are available
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void OnExamineResponse(nsIHttpChannel *chan)
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{
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NotifyObservers(chan, NS_HTTP_ON_EXAMINE_RESPONSE_TOPIC);
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}
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// Called by the channel once headers have been merged with cached headers
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void OnExamineMergedResponse(nsIHttpChannel *chan)
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{
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NotifyObservers(chan, NS_HTTP_ON_EXAMINE_MERGED_RESPONSE_TOPIC);
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}
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// Called by channels before a redirect happens. This notifies both the
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// channel's and the global redirect observers.
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nsresult AsyncOnChannelRedirect(nsIChannel* oldChan, nsIChannel* newChan,
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uint32_t flags);
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// Called by the channel when the response is read from the cache without
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// communicating with the server.
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void OnExamineCachedResponse(nsIHttpChannel *chan)
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{
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NotifyObservers(chan, NS_HTTP_ON_EXAMINE_CACHED_RESPONSE_TOPIC);
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}
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// Generates the host:port string for use in the Host: header as well as the
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// CONNECT line for proxies. This handles IPv6 literals correctly.
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static nsresult GenerateHostPort(const nsCString& host, int32_t port,
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nsCString& hostLine);
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bool GetPipelineAggressive() { return mPipelineAggressive; }
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void GetMaxPipelineObjectSize(int64_t *outVal)
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{
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*outVal = mMaxPipelineObjectSize;
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}
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bool GetPipelineEnabled()
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{
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return mCapabilities & NS_HTTP_ALLOW_PIPELINING;
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}
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bool GetPipelineRescheduleOnTimeout()
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{
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return mPipelineRescheduleOnTimeout;
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}
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PRIntervalTime GetPipelineRescheduleTimeout()
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{
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return mPipelineRescheduleTimeout;
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}
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PRIntervalTime GetPipelineTimeout() { return mPipelineReadTimeout; }
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mozilla::net::SpdyInformation *SpdyInfo() { return &mSpdyInfo; }
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// returns true in between Init and Shutdown states
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bool Active() { return mHandlerActive; }
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private:
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//
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// Useragent/prefs helper methods
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//
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void BuildUserAgent();
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void InitUserAgentComponents();
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void PrefsChanged(nsIPrefBranch *prefs, const char *pref);
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nsresult SetAccept(const char *);
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nsresult SetAcceptLanguages(const char *);
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nsresult SetAcceptEncodings(const char *);
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nsresult InitConnectionMgr();
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void NotifyObservers(nsIHttpChannel *chan, const char *event);
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static void TimerCallback(nsITimer * aTimer, void * aClosure);
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private:
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// cached services
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nsCOMPtr<nsIIOService> mIOService;
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nsCOMPtr<nsIStreamConverterService> mStreamConvSvc;
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nsCOMPtr<nsIObserverService> mObserverService;
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nsCOMPtr<nsICookieService> mCookieService;
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nsCOMPtr<nsIIDNService> mIDNConverter;
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nsCOMPtr<nsIStrictTransportSecurityService> mSTSService;
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// the authentication credentials cache
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nsHttpAuthCache mAuthCache;
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nsHttpAuthCache mPrivateAuthCache;
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// the connection manager
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nsHttpConnectionMgr *mConnMgr;
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//
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// prefs
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//
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uint8_t mHttpVersion;
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uint8_t mProxyHttpVersion;
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uint32_t mCapabilities;
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uint8_t mReferrerLevel;
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bool mFastFallbackToIPv4;
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bool mProxyPipelining;
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PRIntervalTime mIdleTimeout;
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PRIntervalTime mSpdyTimeout;
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uint16_t mMaxRequestAttempts;
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uint16_t mMaxRequestDelay;
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uint16_t mIdleSynTimeout;
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bool mPipeliningEnabled;
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uint16_t mMaxConnections;
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uint8_t mMaxPersistentConnectionsPerServer;
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uint8_t mMaxPersistentConnectionsPerProxy;
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uint16_t mMaxPipelinedRequests;
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uint16_t mMaxOptimisticPipelinedRequests;
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bool mPipelineAggressive;
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int64_t mMaxPipelineObjectSize;
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bool mPipelineRescheduleOnTimeout;
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PRIntervalTime mPipelineRescheduleTimeout;
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PRIntervalTime mPipelineReadTimeout;
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nsCOMPtr<nsITimer> mPipelineTestTimer;
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uint8_t mRedirectionLimit;
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// we'll warn the user if we load an URL containing a userpass field
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// unless its length is less than this threshold. this warning is
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// intended to protect the user against spoofing attempts that use
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// the userpass field of the URL to obscure the actual origin server.
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uint8_t mPhishyUserPassLength;
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uint8_t mQoSBits;
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bool mPipeliningOverSSL;
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bool mEnforceAssocReq;
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nsCString mAccept;
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nsCString mAcceptLanguages;
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nsCString mAcceptEncodings;
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nsXPIDLCString mDefaultSocketType;
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// cache support
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uint32_t mLastUniqueID;
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uint32_t mSessionStartTime;
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// useragent components
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nsCString mLegacyAppName;
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nsCString mLegacyAppVersion;
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nsCString mPlatform;
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nsCString mOscpu;
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nsCString mMisc;
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nsCString mProduct;
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nsXPIDLCString mProductSub;
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nsXPIDLCString mAppName;
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nsXPIDLCString mAppVersion;
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nsCString mCompatFirefox;
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bool mCompatFirefoxEnabled;
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nsXPIDLCString mCompatDevice;
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nsCString mUserAgent;
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nsXPIDLCString mUserAgentOverride;
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bool mUserAgentIsDirty; // true if mUserAgent should be rebuilt
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bool mUseCache;
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bool mPromptTempRedirect;
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// mSendSecureXSiteReferrer: default is false,
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// if true allow referrer headers between secure non-matching hosts
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bool mSendSecureXSiteReferrer;
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// Persistent HTTPS caching flag
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bool mEnablePersistentHttpsCaching;
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// For broadcasting the preference to not be tracked
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bool mDoNotTrackEnabled;
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// Whether telemetry is reported or not
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bool mTelemetryEnabled;
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// The value of network.allow-experiments
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bool mAllowExperiments;
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// true in between init and shutdown states
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bool mHandlerActive;
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// Try to use SPDY features instead of HTTP/1.1 over SSL
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mozilla::net::SpdyInformation mSpdyInfo;
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bool mEnableSpdy;
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bool mSpdyV2;
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bool mSpdyV3;
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bool mCoalesceSpdy;
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bool mUseAlternateProtocol;
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uint32_t mSpdySendingChunkSize;
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uint32_t mSpdySendBufferSize;
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PRIntervalTime mSpdyPingThreshold;
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PRIntervalTime mSpdyPingTimeout;
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// The maximum amount of time to wait for socket transport to be
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// established. In milliseconds.
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uint32_t mConnectTimeout;
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// The maximum number of current global half open sockets allowable
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// when starting a new speculative connection.
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uint32_t mParallelSpeculativeConnectLimit;
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// Whether or not to block requests for non head js/css items (e.g. media)
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// while those elements load.
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bool mCritialRequestPrioritization;
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};
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//-----------------------------------------------------------------------------
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extern nsHttpHandler *gHttpHandler;
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//-----------------------------------------------------------------------------
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// nsHttpsHandler - thin wrapper to distinguish the HTTP handler from the
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// HTTPS handler (even though they share the same impl).
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//-----------------------------------------------------------------------------
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class nsHttpsHandler : public nsIHttpProtocolHandler
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, public nsSupportsWeakReference
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, public nsISpeculativeConnect
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{
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public:
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// we basically just want to override GetScheme and GetDefaultPort...
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// all other methods should be forwarded to the nsHttpHandler instance.
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NS_DECL_ISUPPORTS
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NS_DECL_NSIPROTOCOLHANDLER
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NS_FORWARD_NSIPROXIEDPROTOCOLHANDLER (gHttpHandler->)
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NS_FORWARD_NSIHTTPPROTOCOLHANDLER (gHttpHandler->)
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NS_FORWARD_NSISPECULATIVECONNECT (gHttpHandler->)
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nsHttpsHandler() { }
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virtual ~nsHttpsHandler() { }
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nsresult Init();
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};
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#endif // nsHttpHandler_h__
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