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https://gitlab.winehq.org/wine/wine-gecko.git
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cca184acac
When a connection that involves a pipelined transaction has been stalled (i.e. idle with an open transaction, not an idle persistent connection) for a second move any transactions that are pipelined after the current one onto different connections (and implicitly close this connection when done with the current transaction). when it has been stalled for 10 seconds (pref configurable), cancel the current transaction itself too - depending on its state it can hopefully be restarted on a clean connection.
408 lines
14 KiB
C++
408 lines
14 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications.
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* Portions created by the Initial Developer are Copyright (C) 2001
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Darin Fisher <darin@netscape.com> (original author)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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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 "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 "nsIPrivateBrowsingService.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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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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{
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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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nsHttpHandler();
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virtual ~nsHttpHandler();
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nsresult Init();
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nsresult AddStandardRequestHeaders(nsHttpHeaderArray *,
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PRUint8 capabilities,
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bool useProxy);
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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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PRUint8 ReferrerLevel() { return mReferrerLevel; }
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bool SendSecureXSiteReferrer() { return mSendSecureXSiteReferrer; }
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PRUint8 RedirectionLimit() { return mRedirectionLimit; }
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PRIntervalTime IdleTimeout() { return mIdleTimeout; }
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PRIntervalTime SpdyTimeout() { return mSpdyTimeout; }
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PRUint16 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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PRUint32 PhishyUserPassLength() { return mPhishyUserPassLength; }
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PRUint8 GetQoSBits() { return mQoSBits; }
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PRUint16 GetIdleSynTimeout() { return mIdleSynTimeout; }
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bool FastFallbackToIPv4() { return mFastFallbackToIPv4; }
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PRUint32 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 CoalesceSpdy() { return mCoalesceSpdy; }
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bool UseAlternateProtocol() { return mUseAlternateProtocol; }
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PRUint32 SpdySendingChunkSize() { return mSpdySendingChunkSize; }
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PRIntervalTime SpdyPingThreshold() { return mSpdyPingThreshold; }
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PRIntervalTime SpdyPingTimeout() { return mSpdyPingTimeout; }
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bool PromptTempRedirect() { return mPromptTempRedirect; }
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nsHttpAuthCache *AuthCache() { return &mAuthCache; }
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nsHttpConnectionMgr *ConnMgr() { return mConnMgr; }
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// cache support
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nsresult GetCacheSession(nsCacheStoragePolicy, nsICacheSession **);
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PRUint32 GenerateUniqueID() { return ++mLastUniqueID; }
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PRUint32 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, PRInt32 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, PRInt32 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 GetSocketThreadTarget(nsIEventTarget **target)
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{
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return mConnMgr->GetSocketThreadTarget(target);
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}
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// for anything that wants to know if we're in private browsing mode.
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bool InPrivateBrowsingMode();
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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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PRUint32 Get32BitsOfPseudoRandom();
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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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PRUint32 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, PRInt32 port,
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nsCString& hostLine);
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bool GetPipelineAggressive() { return mPipelineAggressive; }
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void GetMaxPipelineObjectSize(PRInt64 &outVal)
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{
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outVal = mMaxPipelineObjectSize;
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}
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PRIntervalTime GetPipelineTimeout() { return mPipelineReadTimeout; }
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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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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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// 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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PRUint8 mHttpVersion;
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PRUint8 mProxyHttpVersion;
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PRUint8 mCapabilities;
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PRUint8 mProxyCapabilities;
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PRUint8 mReferrerLevel;
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bool mFastFallbackToIPv4;
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PRIntervalTime mIdleTimeout;
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PRIntervalTime mSpdyTimeout;
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PRUint16 mMaxRequestAttempts;
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PRUint16 mMaxRequestDelay;
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PRUint16 mIdleSynTimeout;
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PRUint16 mMaxConnections;
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PRUint8 mMaxConnectionsPerServer;
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PRUint8 mMaxPersistentConnectionsPerServer;
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PRUint8 mMaxPersistentConnectionsPerProxy;
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PRUint16 mMaxPipelinedRequests;
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PRUint16 mMaxOptimisticPipelinedRequests;
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bool mPipelineAggressive;
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PRInt64 mMaxPipelineObjectSize;
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PRIntervalTime mPipelineReadTimeout;
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PRUint8 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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PRUint8 mPhishyUserPassLength;
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PRUint8 mQoSBits;
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bool mPipeliningOverSSL;
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bool mEnforceAssocReq;
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// cached value of whether or not the browser is in private browsing mode.
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enum {
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PRIVATE_BROWSING_OFF = false,
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PRIVATE_BROWSING_ON = true,
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PRIVATE_BROWSING_UNKNOWN = 2
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} mInPrivateBrowsingMode;
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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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PRUint32 mLastUniqueID;
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PRUint32 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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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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// Try to use SPDY features instead of HTTP/1.1 over SSL
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bool mEnableSpdy;
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bool mCoalesceSpdy;
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bool mUseAlternateProtocol;
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PRUint32 mSpdySendingChunkSize;
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PRIntervalTime mSpdyPingThreshold;
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PRIntervalTime mSpdyPingTimeout;
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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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{
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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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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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