3974 lines
120 KiB
C++
3974 lines
120 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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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#include "nsXMLHttpRequest.h"
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#ifndef XP_WIN
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#include <unistd.h>
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#endif
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#include "mozilla/ArrayUtils.h"
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#include "mozilla/CheckedInt.h"
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#include "mozilla/dom/BlobSet.h"
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#include "mozilla/dom/File.h"
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#include "mozilla/dom/FetchUtil.h"
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#include "mozilla/dom/XMLHttpRequestUploadBinding.h"
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#include "mozilla/EventDispatcher.h"
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#include "mozilla/EventListenerManager.h"
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#include "mozilla/LoadInfo.h"
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#include "mozilla/MemoryReporting.h"
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#include "nsIDOMDocument.h"
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#include "mozilla/dom/ProgressEvent.h"
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#include "nsIJARChannel.h"
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#include "nsIJARURI.h"
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#include "nsLayoutCID.h"
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#include "nsReadableUtils.h"
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#include "nsIURI.h"
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#include "nsILoadGroup.h"
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#include "nsNetUtil.h"
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#include "nsStringStream.h"
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#include "nsIAuthPrompt.h"
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#include "nsIAuthPrompt2.h"
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#include "nsIOutputStream.h"
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#include "nsISupportsPrimitives.h"
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#include "nsIInterfaceRequestorUtils.h"
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#include "nsStreamUtils.h"
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#include "nsThreadUtils.h"
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#include "nsIUploadChannel.h"
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#include "nsIUploadChannel2.h"
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#include "nsIDOMSerializer.h"
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#include "nsXPCOM.h"
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#include "nsIDOMEventListener.h"
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#include "nsIScriptSecurityManager.h"
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#include "nsIDOMWindow.h"
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#include "nsIVariant.h"
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#include "nsVariant.h"
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#include "nsIScriptError.h"
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#include "nsIStreamConverterService.h"
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#include "nsICachingChannel.h"
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#include "nsContentUtils.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsError.h"
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#include "nsIHTMLDocument.h"
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#include "nsIStorageStream.h"
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#include "nsIPromptFactory.h"
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#include "nsIWindowWatcher.h"
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#include "nsIConsoleService.h"
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#include "nsIContentSecurityPolicy.h"
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#include "nsAsyncRedirectVerifyHelper.h"
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#include "nsStringBuffer.h"
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#include "nsIFileChannel.h"
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#include "mozilla/Telemetry.h"
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#include "jsfriendapi.h"
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#include "GeckoProfiler.h"
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#include "mozilla/dom/EncodingUtils.h"
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#include "nsIUnicodeDecoder.h"
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#include "mozilla/dom/XMLHttpRequestBinding.h"
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#include "mozilla/Attributes.h"
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#include "nsIPermissionManager.h"
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#include "nsMimeTypes.h"
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#include "nsIHttpChannelInternal.h"
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#include "nsIClassOfService.h"
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#include "nsCharSeparatedTokenizer.h"
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#include "nsFormData.h"
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#include "nsStreamListenerWrapper.h"
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#include "xpcjsid.h"
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#include "nsITimedChannel.h"
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#include "nsWrapperCacheInlines.h"
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#include "nsZipArchive.h"
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#include "mozilla/Preferences.h"
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#include "private/pprio.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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// Maximum size that we'll grow an ArrayBuffer instead of doubling,
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// once doubling reaches this threshold
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#define XML_HTTP_REQUEST_ARRAYBUFFER_MAX_GROWTH (32*1024*1024)
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// start at 32k to avoid lots of doubling right at the start
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#define XML_HTTP_REQUEST_ARRAYBUFFER_MIN_SIZE (32*1024)
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// the maximum Content-Length that we'll preallocate. 1GB. Must fit
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// in an int32_t!
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#define XML_HTTP_REQUEST_MAX_CONTENT_LENGTH_PREALLOCATE (1*1024*1024*1024LL)
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#define LOAD_STR "load"
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#define ERROR_STR "error"
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#define ABORT_STR "abort"
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#define TIMEOUT_STR "timeout"
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#define LOADSTART_STR "loadstart"
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#define PROGRESS_STR "progress"
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#define READYSTATE_STR "readystatechange"
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#define LOADEND_STR "loadend"
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// CIDs
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// State
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#define XML_HTTP_REQUEST_UNSENT (1 << 0) // 0 UNSENT
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#define XML_HTTP_REQUEST_OPENED (1 << 1) // 1 OPENED
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#define XML_HTTP_REQUEST_HEADERS_RECEIVED (1 << 2) // 2 HEADERS_RECEIVED
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#define XML_HTTP_REQUEST_LOADING (1 << 3) // 3 LOADING
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#define XML_HTTP_REQUEST_DONE (1 << 4) // 4 DONE
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#define XML_HTTP_REQUEST_SENT (1 << 5) // Internal, corresponds to
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// "OPENED and the send()
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// flag is set" in spec
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// terms.
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// The above states are mutually exclusive, change with ChangeState() only.
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// The states below can be combined.
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#define XML_HTTP_REQUEST_ABORTED (1 << 7) // Internal
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#define XML_HTTP_REQUEST_ASYNC (1 << 8) // Internal
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#define XML_HTTP_REQUEST_PARSEBODY (1 << 9) // Internal
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#define XML_HTTP_REQUEST_SYNCLOOPING (1 << 10) // Internal
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#define XML_HTTP_REQUEST_BACKGROUND (1 << 13) // Internal
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#define XML_HTTP_REQUEST_HAD_UPLOAD_LISTENERS_ON_SEND (1 << 14) // Internal
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#define XML_HTTP_REQUEST_AC_WITH_CREDENTIALS (1 << 15) // Internal
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#define XML_HTTP_REQUEST_TIMED_OUT (1 << 16) // Internal
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#define XML_HTTP_REQUEST_DELETED (1 << 17) // Internal
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#define XML_HTTP_REQUEST_LOADSTATES \
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(XML_HTTP_REQUEST_UNSENT | \
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XML_HTTP_REQUEST_OPENED | \
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XML_HTTP_REQUEST_HEADERS_RECEIVED | \
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XML_HTTP_REQUEST_LOADING | \
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XML_HTTP_REQUEST_DONE | \
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XML_HTTP_REQUEST_SENT)
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#define NS_BADCERTHANDLER_CONTRACTID \
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"@mozilla.org/content/xmlhttprequest-bad-cert-handler;1"
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#define NS_PROGRESS_EVENT_INTERVAL 50
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#define IMPL_CSTRING_GETTER(_name) \
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NS_IMETHODIMP \
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nsXMLHttpRequest::_name(nsACString& aOut) \
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{ \
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nsCString tmp; \
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_name(tmp); \
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aOut = tmp; \
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return NS_OK; \
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}
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NS_IMPL_ISUPPORTS(nsXHRParseEndListener, nsIDOMEventListener)
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class nsResumeTimeoutsEvent : public nsRunnable
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{
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public:
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explicit nsResumeTimeoutsEvent(nsPIDOMWindow* aWindow) : mWindow(aWindow) {}
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NS_IMETHOD Run()
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{
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mWindow->ResumeTimeouts(false);
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return NS_OK;
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}
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private:
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nsCOMPtr<nsPIDOMWindow> mWindow;
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};
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// This helper function adds the given load flags to the request's existing
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// load flags.
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static void AddLoadFlags(nsIRequest *request, nsLoadFlags newFlags)
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{
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nsLoadFlags flags;
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request->GetLoadFlags(&flags);
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flags |= newFlags;
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request->SetLoadFlags(flags);
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}
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//-----------------------------------------------------------------------------
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// XMLHttpRequestAuthPrompt
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//-----------------------------------------------------------------------------
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class XMLHttpRequestAuthPrompt : public nsIAuthPrompt
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIAUTHPROMPT
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XMLHttpRequestAuthPrompt();
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protected:
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virtual ~XMLHttpRequestAuthPrompt();
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};
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NS_IMPL_ISUPPORTS(XMLHttpRequestAuthPrompt, nsIAuthPrompt)
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XMLHttpRequestAuthPrompt::XMLHttpRequestAuthPrompt()
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{
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MOZ_COUNT_CTOR(XMLHttpRequestAuthPrompt);
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}
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XMLHttpRequestAuthPrompt::~XMLHttpRequestAuthPrompt()
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{
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MOZ_COUNT_DTOR(XMLHttpRequestAuthPrompt);
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}
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NS_IMETHODIMP
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XMLHttpRequestAuthPrompt::Prompt(const char16_t* aDialogTitle,
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const char16_t* aText,
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const char16_t* aPasswordRealm,
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uint32_t aSavePassword,
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const char16_t* aDefaultText,
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char16_t** aResult,
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bool* aRetval)
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{
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*aRetval = false;
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return NS_OK;
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}
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NS_IMETHODIMP
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XMLHttpRequestAuthPrompt::PromptUsernameAndPassword(const char16_t* aDialogTitle,
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const char16_t* aDialogText,
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const char16_t* aPasswordRealm,
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uint32_t aSavePassword,
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char16_t** aUser,
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char16_t** aPwd,
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bool* aRetval)
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{
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*aRetval = false;
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return NS_OK;
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}
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NS_IMETHODIMP
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XMLHttpRequestAuthPrompt::PromptPassword(const char16_t* aDialogTitle,
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const char16_t* aText,
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const char16_t* aPasswordRealm,
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uint32_t aSavePassword,
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char16_t** aPwd,
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bool* aRetval)
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{
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*aRetval = false;
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return NS_OK;
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}
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/////////////////////////////////////////////
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NS_IMPL_CYCLE_COLLECTION_CLASS(nsXHREventTarget)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(nsXHREventTarget,
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DOMEventTargetHelper)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(nsXHREventTarget,
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DOMEventTargetHelper)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(nsXHREventTarget)
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NS_INTERFACE_MAP_ENTRY(nsIXMLHttpRequestEventTarget)
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NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
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NS_IMPL_ADDREF_INHERITED(nsXHREventTarget, DOMEventTargetHelper)
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NS_IMPL_RELEASE_INHERITED(nsXHREventTarget, DOMEventTargetHelper)
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void
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nsXHREventTarget::DisconnectFromOwner()
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{
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DOMEventTargetHelper::DisconnectFromOwner();
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}
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/////////////////////////////////////////////
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NS_INTERFACE_MAP_BEGIN(nsXMLHttpRequestUpload)
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NS_INTERFACE_MAP_ENTRY(nsIXMLHttpRequestUpload)
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NS_INTERFACE_MAP_END_INHERITING(nsXHREventTarget)
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NS_IMPL_ADDREF_INHERITED(nsXMLHttpRequestUpload, nsXHREventTarget)
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NS_IMPL_RELEASE_INHERITED(nsXMLHttpRequestUpload, nsXHREventTarget)
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/* virtual */ JSObject*
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nsXMLHttpRequestUpload::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return XMLHttpRequestUploadBinding::Wrap(aCx, this, aGivenProto);
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}
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/////////////////////////////////////////////
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//
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//
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/////////////////////////////////////////////
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bool
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nsXMLHttpRequest::sDontWarnAboutSyncXHR = false;
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nsXMLHttpRequest::nsXMLHttpRequest()
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: mResponseBodyDecodedPos(0),
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mResponseType(XML_HTTP_RESPONSE_TYPE_DEFAULT),
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mRequestObserver(nullptr),
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mState(XML_HTTP_REQUEST_UNSENT | XML_HTTP_REQUEST_ASYNC),
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mUploadTransferred(0), mUploadTotal(0), mUploadComplete(true),
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mProgressSinceLastProgressEvent(false),
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mRequestSentTime(0), mTimeoutMilliseconds(0),
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mErrorLoad(false), mWaitingForOnStopRequest(false),
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mProgressTimerIsActive(false),
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mIsHtml(false),
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mWarnAboutSyncHtml(false),
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mLoadLengthComputable(false), mLoadTotal(0),
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mIsSystem(false),
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mIsAnon(false),
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mFirstStartRequestSeen(false),
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mInLoadProgressEvent(false),
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mResultJSON(JS::UndefinedValue()),
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mResultArrayBuffer(nullptr),
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mIsMappedArrayBuffer(false),
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mXPCOMifier(nullptr)
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{
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#ifdef DEBUG
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StaticAssertions();
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#endif
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}
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nsXMLHttpRequest::~nsXMLHttpRequest()
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{
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mState |= XML_HTTP_REQUEST_DELETED;
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if (mState & (XML_HTTP_REQUEST_SENT |
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XML_HTTP_REQUEST_LOADING)) {
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Abort();
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}
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MOZ_ASSERT(!(mState & XML_HTTP_REQUEST_SYNCLOOPING), "we rather crash than hang");
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mState &= ~XML_HTTP_REQUEST_SYNCLOOPING;
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mResultJSON.setUndefined();
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mResultArrayBuffer = nullptr;
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mozilla::DropJSObjects(this);
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}
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void
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nsXMLHttpRequest::RootJSResultObjects()
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{
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mozilla::HoldJSObjects(this);
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}
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/**
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* This Init method is called from the factory constructor.
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*/
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nsresult
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nsXMLHttpRequest::Init()
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{
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nsIScriptSecurityManager* secMan = nsContentUtils::GetSecurityManager();
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nsCOMPtr<nsIPrincipal> subjectPrincipal;
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if (secMan) {
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secMan->GetSystemPrincipal(getter_AddRefs(subjectPrincipal));
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}
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NS_ENSURE_STATE(subjectPrincipal);
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// Instead of grabbing some random global from the context stack,
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// let's use the default one (junk scope) for now.
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// We should move away from this Init...
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Construct(subjectPrincipal, xpc::NativeGlobal(xpc::PrivilegedJunkScope()));
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return NS_OK;
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}
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/**
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* This Init method should only be called by C++ consumers.
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*/
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NS_IMETHODIMP
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nsXMLHttpRequest::Init(nsIPrincipal* aPrincipal,
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nsIScriptContext* aScriptContext,
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nsIGlobalObject* aGlobalObject,
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nsIURI* aBaseURI,
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nsILoadGroup* aLoadGroup)
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{
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NS_ENSURE_ARG_POINTER(aPrincipal);
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if (nsCOMPtr<nsPIDOMWindow> win = do_QueryInterface(aGlobalObject)) {
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if (win->IsOuterWindow()) {
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// Must be bound to inner window, innerize if necessary.
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nsCOMPtr<nsIGlobalObject> inner = do_QueryInterface(
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win->GetCurrentInnerWindow());
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aGlobalObject = inner.get();
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}
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}
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Construct(aPrincipal, aGlobalObject, aBaseURI, aLoadGroup);
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return NS_OK;
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}
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void
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nsXMLHttpRequest::InitParameters(bool aAnon, bool aSystem)
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{
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if (!aAnon && !aSystem) {
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return;
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}
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// Check for permissions.
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// Chrome is always allowed access, so do the permission check only
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// for non-chrome pages.
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if (!IsSystemXHR() && aSystem) {
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nsIGlobalObject* global = GetOwnerGlobal();
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if (NS_WARN_IF(!global)) {
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SetParameters(aAnon, false);
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return;
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}
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nsIPrincipal* principal = global->PrincipalOrNull();
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if (NS_WARN_IF(!principal)) {
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SetParameters(aAnon, false);
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return;
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}
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nsCOMPtr<nsIPermissionManager> permMgr =
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services::GetPermissionManager();
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if (NS_WARN_IF(!permMgr)) {
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SetParameters(aAnon, false);
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return;
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}
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uint32_t permission;
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nsresult rv =
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permMgr->TestPermissionFromPrincipal(principal, "systemXHR", &permission);
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if (NS_FAILED(rv) || permission != nsIPermissionManager::ALLOW_ACTION) {
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SetParameters(aAnon, false);
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return;
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}
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}
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SetParameters(aAnon, aSystem);
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}
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void
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nsXMLHttpRequest::ResetResponse()
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{
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mResponseXML = nullptr;
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mResponseBody.Truncate();
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mResponseText.Truncate();
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mResponseBlob = nullptr;
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mDOMBlob = nullptr;
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mBlobSet = nullptr;
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mResultArrayBuffer = nullptr;
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mArrayBufferBuilder.reset();
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mResultJSON.setUndefined();
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mDataAvailable = 0;
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mLoadTransferred = 0;
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mResponseBodyDecodedPos = 0;
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}
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void
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nsXMLHttpRequest::SetRequestObserver(nsIRequestObserver* aObserver)
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{
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mRequestObserver = aObserver;
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}
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NS_IMPL_CYCLE_COLLECTION_CLASS(nsXMLHttpRequest)
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NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_BEGIN(nsXMLHttpRequest)
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bool isBlack = tmp->IsBlack();
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if (isBlack || tmp->mWaitingForOnStopRequest) {
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if (tmp->mListenerManager) {
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tmp->mListenerManager->MarkForCC();
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}
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if (!isBlack && tmp->PreservingWrapper()) {
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// This marks the wrapper black.
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tmp->GetWrapper();
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}
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return true;
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}
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NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_END
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NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_IN_CC_BEGIN(nsXMLHttpRequest)
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return tmp->
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IsBlackAndDoesNotNeedTracing(static_cast<DOMEventTargetHelper*>(tmp));
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NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_IN_CC_END
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NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_BEGIN(nsXMLHttpRequest)
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return tmp->IsBlack();
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NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_END
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(nsXMLHttpRequest,
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nsXHREventTarget)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mContext)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mChannel)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mResponseXML)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mXMLParserStreamListener)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mResponseBlob)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDOMBlob)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mNotificationCallbacks)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mChannelEventSink)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mProgressEventSink)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mUpload)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(nsXMLHttpRequest,
|
|
nsXHREventTarget)
|
|
tmp->mResultArrayBuffer = nullptr;
|
|
tmp->mArrayBufferBuilder.reset();
|
|
tmp->mResultJSON.setUndefined();
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mContext)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mChannel)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mResponseXML)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mXMLParserStreamListener)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mResponseBlob)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mDOMBlob)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mNotificationCallbacks)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mChannelEventSink)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mProgressEventSink)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mUpload)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(nsXMLHttpRequest,
|
|
nsXHREventTarget)
|
|
NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mResultArrayBuffer)
|
|
NS_IMPL_CYCLE_COLLECTION_TRACE_JSVAL_MEMBER_CALLBACK(mResultJSON)
|
|
NS_IMPL_CYCLE_COLLECTION_TRACE_END
|
|
|
|
// QueryInterface implementation for nsXMLHttpRequest
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(nsXMLHttpRequest)
|
|
NS_INTERFACE_MAP_ENTRY(nsIXMLHttpRequest)
|
|
NS_INTERFACE_MAP_ENTRY(nsIJSXMLHttpRequest)
|
|
NS_INTERFACE_MAP_ENTRY(nsIRequestObserver)
|
|
NS_INTERFACE_MAP_ENTRY(nsIStreamListener)
|
|
NS_INTERFACE_MAP_ENTRY(nsIChannelEventSink)
|
|
NS_INTERFACE_MAP_ENTRY(nsIProgressEventSink)
|
|
NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
|
|
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
|
|
NS_INTERFACE_MAP_ENTRY(nsITimerCallback)
|
|
NS_INTERFACE_MAP_ENTRY(nsISizeOfEventTarget)
|
|
NS_INTERFACE_MAP_END_INHERITING(nsXHREventTarget)
|
|
|
|
NS_IMPL_ADDREF_INHERITED(nsXMLHttpRequest, nsXHREventTarget)
|
|
NS_IMPL_RELEASE_INHERITED(nsXMLHttpRequest, nsXHREventTarget)
|
|
|
|
NS_IMPL_EVENT_HANDLER(nsXMLHttpRequest, readystatechange)
|
|
|
|
void
|
|
nsXMLHttpRequest::DisconnectFromOwner()
|
|
{
|
|
nsXHREventTarget::DisconnectFromOwner();
|
|
Abort();
|
|
}
|
|
|
|
size_t
|
|
nsXMLHttpRequest::SizeOfEventTargetIncludingThis(
|
|
MallocSizeOf aMallocSizeOf) const
|
|
{
|
|
size_t n = aMallocSizeOf(this);
|
|
n += mResponseBody.SizeOfExcludingThisIfUnshared(aMallocSizeOf);
|
|
|
|
// Why is this safe? Because no-one else will report this string. The
|
|
// other possible sharers of this string are as follows.
|
|
//
|
|
// - The JS engine could hold copies if the JS code holds references, e.g.
|
|
// |var text = XHR.responseText|. However, those references will be via JS
|
|
// external strings, for which the JS memory reporter does *not* report the
|
|
// chars.
|
|
//
|
|
// - Binary extensions, but they're *extremely* unlikely to do any memory
|
|
// reporting.
|
|
//
|
|
n += mResponseText.SizeOfExcludingThisEvenIfShared(aMallocSizeOf);
|
|
|
|
return n;
|
|
|
|
// Measurement of the following members may be added later if DMD finds it is
|
|
// worthwhile:
|
|
// - lots
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::GetChannel(nsIChannel **aChannel)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aChannel);
|
|
NS_IF_ADDREF(*aChannel = mChannel);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
static void LogMessage(const char* aWarning, nsPIDOMWindow* aWindow)
|
|
{
|
|
nsCOMPtr<nsIDocument> doc;
|
|
if (aWindow) {
|
|
doc = aWindow->GetExtantDoc();
|
|
}
|
|
nsContentUtils::ReportToConsole(nsIScriptError::warningFlag,
|
|
NS_LITERAL_CSTRING("DOM"), doc,
|
|
nsContentUtils::eDOM_PROPERTIES,
|
|
aWarning);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::GetResponseXML(nsIDOMDocument **aResponseXML)
|
|
{
|
|
ErrorResult rv;
|
|
nsIDocument* responseXML = GetResponseXML(rv);
|
|
if (rv.Failed()) {
|
|
return rv.StealNSResult();
|
|
}
|
|
|
|
if (!responseXML) {
|
|
*aResponseXML = nullptr;
|
|
return NS_OK;
|
|
}
|
|
|
|
return CallQueryInterface(responseXML, aResponseXML);
|
|
}
|
|
|
|
nsIDocument*
|
|
nsXMLHttpRequest::GetResponseXML(ErrorResult& aRv)
|
|
{
|
|
if (mResponseType != XML_HTTP_RESPONSE_TYPE_DEFAULT &&
|
|
mResponseType != XML_HTTP_RESPONSE_TYPE_DOCUMENT) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return nullptr;
|
|
}
|
|
if (mWarnAboutSyncHtml) {
|
|
mWarnAboutSyncHtml = false;
|
|
LogMessage("HTMLSyncXHRWarning", GetOwner());
|
|
}
|
|
return (XML_HTTP_REQUEST_DONE & mState) ? mResponseXML : nullptr;
|
|
}
|
|
|
|
/*
|
|
* This piece copied from XMLDocument, we try to get the charset
|
|
* from HTTP headers.
|
|
*/
|
|
nsresult
|
|
nsXMLHttpRequest::DetectCharset()
|
|
{
|
|
mResponseCharset.Truncate();
|
|
mDecoder = nullptr;
|
|
|
|
if (mResponseType != XML_HTTP_RESPONSE_TYPE_DEFAULT &&
|
|
mResponseType != XML_HTTP_RESPONSE_TYPE_TEXT &&
|
|
mResponseType != XML_HTTP_RESPONSE_TYPE_JSON &&
|
|
mResponseType != XML_HTTP_RESPONSE_TYPE_CHUNKED_TEXT) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsAutoCString charsetVal;
|
|
bool ok = mChannel &&
|
|
NS_SUCCEEDED(mChannel->GetContentCharset(charsetVal)) &&
|
|
EncodingUtils::FindEncodingForLabel(charsetVal, mResponseCharset);
|
|
if (!ok || mResponseCharset.IsEmpty()) {
|
|
// MS documentation states UTF-8 is default for responseText
|
|
mResponseCharset.AssignLiteral("UTF-8");
|
|
}
|
|
|
|
if (mResponseType == XML_HTTP_RESPONSE_TYPE_JSON &&
|
|
!mResponseCharset.EqualsLiteral("UTF-8")) {
|
|
// The XHR spec says only UTF-8 is supported for responseType == "json"
|
|
LogMessage("JSONCharsetWarning", GetOwner());
|
|
mResponseCharset.AssignLiteral("UTF-8");
|
|
}
|
|
|
|
mDecoder = EncodingUtils::DecoderForEncoding(mResponseCharset);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsXMLHttpRequest::AppendToResponseText(const char * aSrcBuffer,
|
|
uint32_t aSrcBufferLen)
|
|
{
|
|
NS_ENSURE_STATE(mDecoder);
|
|
|
|
int32_t destBufferLen;
|
|
nsresult rv = mDecoder->GetMaxLength(aSrcBuffer, aSrcBufferLen,
|
|
&destBufferLen);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
uint32_t size = mResponseText.Length() + destBufferLen;
|
|
if (size < (uint32_t)destBufferLen) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
if (!mResponseText.SetCapacity(size, fallible)) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
char16_t* destBuffer = mResponseText.BeginWriting() + mResponseText.Length();
|
|
|
|
CheckedInt32 totalChars = mResponseText.Length();
|
|
|
|
// This code here is basically a copy of a similar thing in
|
|
// nsScanner::Append(const char* aBuffer, uint32_t aLen).
|
|
int32_t srclen = (int32_t)aSrcBufferLen;
|
|
int32_t destlen = (int32_t)destBufferLen;
|
|
rv = mDecoder->Convert(aSrcBuffer,
|
|
&srclen,
|
|
destBuffer,
|
|
&destlen);
|
|
MOZ_ASSERT(NS_SUCCEEDED(rv));
|
|
|
|
totalChars += destlen;
|
|
if (!totalChars.isValid()) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
mResponseText.SetLength(totalChars.value());
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::GetResponseText(nsAString& aResponseText)
|
|
{
|
|
ErrorResult rv;
|
|
nsString responseText;
|
|
GetResponseText(responseText, rv);
|
|
aResponseText = responseText;
|
|
return rv.StealNSResult();
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::GetResponseText(nsString& aResponseText, ErrorResult& aRv)
|
|
{
|
|
aResponseText.Truncate();
|
|
|
|
if (mResponseType != XML_HTTP_RESPONSE_TYPE_DEFAULT &&
|
|
mResponseType != XML_HTTP_RESPONSE_TYPE_TEXT &&
|
|
mResponseType != XML_HTTP_RESPONSE_TYPE_CHUNKED_TEXT) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return;
|
|
}
|
|
|
|
if (mResponseType == XML_HTTP_RESPONSE_TYPE_CHUNKED_TEXT &&
|
|
!mInLoadProgressEvent) {
|
|
aResponseText.SetIsVoid(true);
|
|
return;
|
|
}
|
|
|
|
if (!(mState & (XML_HTTP_REQUEST_DONE | XML_HTTP_REQUEST_LOADING))) {
|
|
return;
|
|
}
|
|
|
|
// We only decode text lazily if we're also parsing to a doc.
|
|
// Also, if we've decoded all current data already, then no need to decode
|
|
// more.
|
|
if (!mResponseXML ||
|
|
mResponseBodyDecodedPos == mResponseBody.Length()) {
|
|
aResponseText = mResponseText;
|
|
return;
|
|
}
|
|
|
|
if (mResponseCharset != mResponseXML->GetDocumentCharacterSet()) {
|
|
mResponseCharset = mResponseXML->GetDocumentCharacterSet();
|
|
mResponseText.Truncate();
|
|
mResponseBodyDecodedPos = 0;
|
|
mDecoder = EncodingUtils::DecoderForEncoding(mResponseCharset);
|
|
}
|
|
|
|
NS_ASSERTION(mResponseBodyDecodedPos < mResponseBody.Length(),
|
|
"Unexpected mResponseBodyDecodedPos");
|
|
aRv = AppendToResponseText(mResponseBody.get() + mResponseBodyDecodedPos,
|
|
mResponseBody.Length() - mResponseBodyDecodedPos);
|
|
if (aRv.Failed()) {
|
|
return;
|
|
}
|
|
|
|
mResponseBodyDecodedPos = mResponseBody.Length();
|
|
|
|
if (mState & XML_HTTP_REQUEST_DONE) {
|
|
// Free memory buffer which we no longer need
|
|
mResponseBody.Truncate();
|
|
mResponseBodyDecodedPos = 0;
|
|
}
|
|
|
|
aResponseText = mResponseText;
|
|
}
|
|
|
|
nsresult
|
|
nsXMLHttpRequest::CreateResponseParsedJSON(JSContext* aCx)
|
|
{
|
|
if (!aCx) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
RootJSResultObjects();
|
|
|
|
// The Unicode converter has already zapped the BOM if there was one
|
|
JS::Rooted<JS::Value> value(aCx);
|
|
if (!JS_ParseJSON(aCx,
|
|
static_cast<const char16_t*>(mResponseText.get()), mResponseText.Length(),
|
|
&value)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
mResultJSON = value;
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::CreatePartialBlob(ErrorResult& aRv)
|
|
{
|
|
if (mDOMBlob) {
|
|
// Use progress info to determine whether load is complete, but use
|
|
// mDataAvailable to ensure a slice is created based on the uncompressed
|
|
// data count.
|
|
if (mLoadTotal == mLoadTransferred) {
|
|
mResponseBlob = mDOMBlob;
|
|
} else {
|
|
mResponseBlob = mDOMBlob->CreateSlice(0, mDataAvailable,
|
|
EmptyString(), aRv);
|
|
}
|
|
return;
|
|
}
|
|
|
|
// mBlobSet can be null if the request has been canceled
|
|
if (!mBlobSet) {
|
|
return;
|
|
}
|
|
|
|
nsAutoCString contentType;
|
|
if (mLoadTotal == mLoadTransferred) {
|
|
mChannel->GetContentType(contentType);
|
|
}
|
|
|
|
mResponseBlob = mBlobSet->GetBlobInternal(GetOwner(), contentType, aRv);
|
|
}
|
|
|
|
NS_IMETHODIMP nsXMLHttpRequest::GetResponseType(nsAString& aResponseType)
|
|
{
|
|
switch (mResponseType) {
|
|
case XML_HTTP_RESPONSE_TYPE_DEFAULT:
|
|
aResponseType.Truncate();
|
|
break;
|
|
case XML_HTTP_RESPONSE_TYPE_ARRAYBUFFER:
|
|
aResponseType.AssignLiteral("arraybuffer");
|
|
break;
|
|
case XML_HTTP_RESPONSE_TYPE_BLOB:
|
|
aResponseType.AssignLiteral("blob");
|
|
break;
|
|
case XML_HTTP_RESPONSE_TYPE_DOCUMENT:
|
|
aResponseType.AssignLiteral("document");
|
|
break;
|
|
case XML_HTTP_RESPONSE_TYPE_TEXT:
|
|
aResponseType.AssignLiteral("text");
|
|
break;
|
|
case XML_HTTP_RESPONSE_TYPE_JSON:
|
|
aResponseType.AssignLiteral("json");
|
|
break;
|
|
case XML_HTTP_RESPONSE_TYPE_CHUNKED_TEXT:
|
|
aResponseType.AssignLiteral("moz-chunked-text");
|
|
break;
|
|
case XML_HTTP_RESPONSE_TYPE_CHUNKED_ARRAYBUFFER:
|
|
aResponseType.AssignLiteral("moz-chunked-arraybuffer");
|
|
break;
|
|
case XML_HTTP_RESPONSE_TYPE_MOZ_BLOB:
|
|
aResponseType.AssignLiteral("moz-blob");
|
|
break;
|
|
default:
|
|
NS_ERROR("Should not happen");
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
void
|
|
nsXMLHttpRequest::StaticAssertions()
|
|
{
|
|
#define ASSERT_ENUM_EQUAL(_lc, _uc) \
|
|
static_assert(\
|
|
static_cast<int>(XMLHttpRequestResponseType::_lc) \
|
|
== XML_HTTP_RESPONSE_TYPE_ ## _uc, \
|
|
#_uc " should match")
|
|
|
|
ASSERT_ENUM_EQUAL(_empty, DEFAULT);
|
|
ASSERT_ENUM_EQUAL(Arraybuffer, ARRAYBUFFER);
|
|
ASSERT_ENUM_EQUAL(Blob, BLOB);
|
|
ASSERT_ENUM_EQUAL(Document, DOCUMENT);
|
|
ASSERT_ENUM_EQUAL(Json, JSON);
|
|
ASSERT_ENUM_EQUAL(Text, TEXT);
|
|
ASSERT_ENUM_EQUAL(Moz_chunked_text, CHUNKED_TEXT);
|
|
ASSERT_ENUM_EQUAL(Moz_chunked_arraybuffer, CHUNKED_ARRAYBUFFER);
|
|
ASSERT_ENUM_EQUAL(Moz_blob, MOZ_BLOB);
|
|
#undef ASSERT_ENUM_EQUAL
|
|
}
|
|
#endif
|
|
|
|
NS_IMETHODIMP nsXMLHttpRequest::SetResponseType(const nsAString& aResponseType)
|
|
{
|
|
nsXMLHttpRequest::ResponseTypeEnum responseType;
|
|
if (aResponseType.IsEmpty()) {
|
|
responseType = XML_HTTP_RESPONSE_TYPE_DEFAULT;
|
|
} else if (aResponseType.EqualsLiteral("arraybuffer")) {
|
|
responseType = XML_HTTP_RESPONSE_TYPE_ARRAYBUFFER;
|
|
} else if (aResponseType.EqualsLiteral("blob")) {
|
|
responseType = XML_HTTP_RESPONSE_TYPE_BLOB;
|
|
} else if (aResponseType.EqualsLiteral("document")) {
|
|
responseType = XML_HTTP_RESPONSE_TYPE_DOCUMENT;
|
|
} else if (aResponseType.EqualsLiteral("text")) {
|
|
responseType = XML_HTTP_RESPONSE_TYPE_TEXT;
|
|
} else if (aResponseType.EqualsLiteral("json")) {
|
|
responseType = XML_HTTP_RESPONSE_TYPE_JSON;
|
|
} else if (aResponseType.EqualsLiteral("moz-chunked-text")) {
|
|
responseType = XML_HTTP_RESPONSE_TYPE_CHUNKED_TEXT;
|
|
} else if (aResponseType.EqualsLiteral("moz-chunked-arraybuffer")) {
|
|
responseType = XML_HTTP_RESPONSE_TYPE_CHUNKED_ARRAYBUFFER;
|
|
} else if (aResponseType.EqualsLiteral("moz-blob")) {
|
|
responseType = XML_HTTP_RESPONSE_TYPE_MOZ_BLOB;
|
|
} else {
|
|
return NS_OK;
|
|
}
|
|
|
|
ErrorResult rv;
|
|
SetResponseType(responseType, rv);
|
|
return rv.StealNSResult();
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::SetResponseType(XMLHttpRequestResponseType aType,
|
|
ErrorResult& aRv)
|
|
{
|
|
SetResponseType(ResponseTypeEnum(static_cast<int>(aType)), aRv);
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::SetResponseType(nsXMLHttpRequest::ResponseTypeEnum aResponseType,
|
|
ErrorResult& aRv)
|
|
{
|
|
// If the state is LOADING or DONE raise an INVALID_STATE_ERR exception
|
|
// and terminate these steps.
|
|
if ((mState & (XML_HTTP_REQUEST_LOADING | XML_HTTP_REQUEST_DONE))) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return;
|
|
}
|
|
|
|
// sync request is not allowed setting responseType in window context
|
|
if (HasOrHasHadOwner() &&
|
|
!(mState & (XML_HTTP_REQUEST_UNSENT | XML_HTTP_REQUEST_ASYNC))) {
|
|
LogMessage("ResponseTypeSyncXHRWarning", GetOwner());
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR);
|
|
return;
|
|
}
|
|
|
|
if (!(mState & XML_HTTP_REQUEST_ASYNC) &&
|
|
(aResponseType == XML_HTTP_RESPONSE_TYPE_CHUNKED_TEXT ||
|
|
aResponseType == XML_HTTP_RESPONSE_TYPE_CHUNKED_ARRAYBUFFER)) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return;
|
|
}
|
|
|
|
// Set the responseType attribute's value to the given value.
|
|
mResponseType = aResponseType;
|
|
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::GetResponse(JSContext *aCx, JS::MutableHandle<JS::Value> aResult)
|
|
{
|
|
ErrorResult rv;
|
|
GetResponse(aCx, aResult, rv);
|
|
return rv.StealNSResult();
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::GetResponse(JSContext* aCx,
|
|
JS::MutableHandle<JS::Value> aResponse,
|
|
ErrorResult& aRv)
|
|
{
|
|
switch (mResponseType) {
|
|
case XML_HTTP_RESPONSE_TYPE_DEFAULT:
|
|
case XML_HTTP_RESPONSE_TYPE_TEXT:
|
|
case XML_HTTP_RESPONSE_TYPE_CHUNKED_TEXT:
|
|
{
|
|
nsString str;
|
|
aRv = GetResponseText(str);
|
|
if (aRv.Failed()) {
|
|
return;
|
|
}
|
|
if (!xpc::StringToJsval(aCx, str, aResponse)) {
|
|
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
|
|
}
|
|
return;
|
|
}
|
|
|
|
case XML_HTTP_RESPONSE_TYPE_ARRAYBUFFER:
|
|
case XML_HTTP_RESPONSE_TYPE_CHUNKED_ARRAYBUFFER:
|
|
{
|
|
if (!(mResponseType == XML_HTTP_RESPONSE_TYPE_ARRAYBUFFER &&
|
|
mState & XML_HTTP_REQUEST_DONE) &&
|
|
!(mResponseType == XML_HTTP_RESPONSE_TYPE_CHUNKED_ARRAYBUFFER &&
|
|
mInLoadProgressEvent)) {
|
|
aResponse.setNull();
|
|
return;
|
|
}
|
|
|
|
if (!mResultArrayBuffer) {
|
|
RootJSResultObjects();
|
|
|
|
mResultArrayBuffer = mArrayBufferBuilder.getArrayBuffer(aCx);
|
|
if (!mResultArrayBuffer) {
|
|
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
|
|
return;
|
|
}
|
|
}
|
|
JS::ExposeObjectToActiveJS(mResultArrayBuffer);
|
|
aResponse.setObject(*mResultArrayBuffer);
|
|
return;
|
|
}
|
|
case XML_HTTP_RESPONSE_TYPE_BLOB:
|
|
case XML_HTTP_RESPONSE_TYPE_MOZ_BLOB:
|
|
{
|
|
if (!(mState & XML_HTTP_REQUEST_DONE)) {
|
|
if (mResponseType != XML_HTTP_RESPONSE_TYPE_MOZ_BLOB) {
|
|
aResponse.setNull();
|
|
return;
|
|
}
|
|
|
|
if (!mResponseBlob) {
|
|
CreatePartialBlob(aRv);
|
|
}
|
|
}
|
|
|
|
if (!mResponseBlob) {
|
|
aResponse.setNull();
|
|
return;
|
|
}
|
|
|
|
GetOrCreateDOMReflector(aCx, mResponseBlob, aResponse);
|
|
return;
|
|
}
|
|
case XML_HTTP_RESPONSE_TYPE_DOCUMENT:
|
|
{
|
|
if (!(mState & XML_HTTP_REQUEST_DONE) || !mResponseXML) {
|
|
aResponse.setNull();
|
|
return;
|
|
}
|
|
|
|
aRv = nsContentUtils::WrapNative(aCx, mResponseXML, aResponse);
|
|
return;
|
|
}
|
|
case XML_HTTP_RESPONSE_TYPE_JSON:
|
|
{
|
|
if (!(mState & XML_HTTP_REQUEST_DONE)) {
|
|
aResponse.setNull();
|
|
return;
|
|
}
|
|
|
|
if (mResultJSON.isUndefined()) {
|
|
aRv = CreateResponseParsedJSON(aCx);
|
|
mResponseText.Truncate();
|
|
if (aRv.Failed()) {
|
|
// Per spec, errors aren't propagated. null is returned instead.
|
|
aRv = NS_OK;
|
|
// It would be nice to log the error to the console. That's hard to
|
|
// do without calling window.onerror as a side effect, though.
|
|
JS_ClearPendingException(aCx);
|
|
mResultJSON.setNull();
|
|
}
|
|
}
|
|
JS::ExposeValueToActiveJS(mResultJSON);
|
|
aResponse.set(mResultJSON);
|
|
return;
|
|
}
|
|
default:
|
|
NS_ERROR("Should not happen");
|
|
}
|
|
|
|
aResponse.setNull();
|
|
}
|
|
|
|
bool
|
|
nsXMLHttpRequest::IsCrossSiteCORSRequest()
|
|
{
|
|
if (!mChannel) {
|
|
return false;
|
|
}
|
|
|
|
nsCOMPtr<nsILoadInfo> loadInfo = mChannel->GetLoadInfo();
|
|
MOZ_ASSERT(loadInfo);
|
|
|
|
return loadInfo->GetTainting() == LoadTainting::CORS;
|
|
}
|
|
|
|
bool
|
|
nsXMLHttpRequest::IsDeniedCrossSiteCORSRequest()
|
|
{
|
|
if (IsCrossSiteCORSRequest()) {
|
|
nsresult rv;
|
|
mChannel->GetStatus(&rv);
|
|
if (NS_FAILED(rv)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::GetResponseURL(nsAString& aUrl)
|
|
{
|
|
aUrl.Truncate();
|
|
|
|
uint16_t readyState = ReadyState();
|
|
if ((readyState == UNSENT || readyState == OPENED) || !mChannel) {
|
|
return;
|
|
}
|
|
|
|
// Make sure we don't leak responseURL information from denied cross-site
|
|
// requests.
|
|
if (IsDeniedCrossSiteCORSRequest()) {
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIURI> responseUrl;
|
|
mChannel->GetURI(getter_AddRefs(responseUrl));
|
|
|
|
if (!responseUrl) {
|
|
return;
|
|
}
|
|
|
|
nsAutoCString temp;
|
|
responseUrl->GetSpecIgnoringRef(temp);
|
|
CopyUTF8toUTF16(temp, aUrl);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::GetStatus(uint32_t *aStatus)
|
|
{
|
|
*aStatus = Status();
|
|
return NS_OK;
|
|
}
|
|
|
|
uint32_t
|
|
nsXMLHttpRequest::Status()
|
|
{
|
|
// Make sure we don't leak status information from denied cross-site
|
|
// requests.
|
|
if (IsDeniedCrossSiteCORSRequest()) {
|
|
return 0;
|
|
}
|
|
|
|
uint16_t readyState = ReadyState();
|
|
if (readyState == UNSENT || readyState == OPENED) {
|
|
return 0;
|
|
}
|
|
|
|
if (mErrorLoad) {
|
|
// Let's simulate the http protocol for jar/app requests:
|
|
nsCOMPtr<nsIJARChannel> jarChannel = GetCurrentJARChannel();
|
|
if (jarChannel) {
|
|
nsresult status;
|
|
mChannel->GetStatus(&status);
|
|
|
|
if (status == NS_ERROR_FILE_NOT_FOUND) {
|
|
return 404; // Not Found
|
|
} else {
|
|
return 500; // Internal Error
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
nsCOMPtr<nsIHttpChannel> httpChannel = GetCurrentHttpChannel();
|
|
if (!httpChannel) {
|
|
// Pretend like we got a 200 response, since our load was successful
|
|
return 200;
|
|
}
|
|
|
|
uint32_t status;
|
|
nsresult rv = httpChannel->GetResponseStatus(&status);
|
|
if (NS_FAILED(rv)) {
|
|
status = 0;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
IMPL_CSTRING_GETTER(GetStatusText)
|
|
void
|
|
nsXMLHttpRequest::GetStatusText(nsCString& aStatusText)
|
|
{
|
|
// Return an empty status text on all error loads.
|
|
aStatusText.Truncate();
|
|
|
|
// Make sure we don't leak status information from denied cross-site
|
|
// requests.
|
|
if (IsDeniedCrossSiteCORSRequest()) {
|
|
return;
|
|
}
|
|
|
|
// Check the current XHR state to see if it is valid to obtain the statusText
|
|
// value. This check is to prevent the status text for redirects from being
|
|
// available before all the redirects have been followed and HTTP headers have
|
|
// been received.
|
|
uint16_t readyState = ReadyState();
|
|
if (readyState == UNSENT || readyState == OPENED) {
|
|
return;
|
|
}
|
|
|
|
if (mErrorLoad) {
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIHttpChannel> httpChannel = GetCurrentHttpChannel();
|
|
if (httpChannel) {
|
|
httpChannel->GetResponseStatusText(aStatusText);
|
|
} else {
|
|
aStatusText.AssignLiteral("OK");
|
|
}
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::CloseRequestWithError(const nsAString& aType,
|
|
const uint32_t aFlag)
|
|
{
|
|
if (mChannel) {
|
|
mChannel->Cancel(NS_BINDING_ABORTED);
|
|
}
|
|
if (mTimeoutTimer) {
|
|
mTimeoutTimer->Cancel();
|
|
}
|
|
uint32_t responseLength = mResponseBody.Length();
|
|
ResetResponse();
|
|
mState |= aFlag;
|
|
|
|
// If we're in the destructor, don't risk dispatching an event.
|
|
if (mState & XML_HTTP_REQUEST_DELETED) {
|
|
mState &= ~XML_HTTP_REQUEST_SYNCLOOPING;
|
|
return;
|
|
}
|
|
|
|
if (!(mState & (XML_HTTP_REQUEST_UNSENT |
|
|
XML_HTTP_REQUEST_OPENED |
|
|
XML_HTTP_REQUEST_DONE))) {
|
|
ChangeState(XML_HTTP_REQUEST_DONE, true);
|
|
|
|
if (!(mState & XML_HTTP_REQUEST_SYNCLOOPING)) {
|
|
DispatchProgressEvent(this, aType, mLoadLengthComputable, responseLength,
|
|
mLoadTotal);
|
|
if (mUpload && !mUploadComplete) {
|
|
mUploadComplete = true;
|
|
DispatchProgressEvent(mUpload, aType, true, mUploadTransferred,
|
|
mUploadTotal);
|
|
}
|
|
}
|
|
}
|
|
|
|
// The ChangeState call above calls onreadystatechange handlers which
|
|
// if they load a new url will cause nsXMLHttpRequest::Open to clear
|
|
// the abort state bit. If this occurs we're not uninitialized (bug 361773).
|
|
if (mState & XML_HTTP_REQUEST_ABORTED) {
|
|
ChangeState(XML_HTTP_REQUEST_UNSENT, false); // IE seems to do it
|
|
}
|
|
|
|
mState &= ~XML_HTTP_REQUEST_SYNCLOOPING;
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::Abort()
|
|
{
|
|
CloseRequestWithError(NS_LITERAL_STRING(ABORT_STR), XML_HTTP_REQUEST_ABORTED);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::SlowAbort()
|
|
{
|
|
Abort();
|
|
return NS_OK;
|
|
}
|
|
|
|
/*Method that checks if it is safe to expose a header value to the client.
|
|
It is used to check what headers are exposed for CORS requests.*/
|
|
bool
|
|
nsXMLHttpRequest::IsSafeHeader(const nsACString& header, nsIHttpChannel* httpChannel)
|
|
{
|
|
// See bug #380418. Hide "Set-Cookie" headers from non-chrome scripts.
|
|
if (!IsSystemXHR() && nsContentUtils::IsForbiddenResponseHeader(header)) {
|
|
NS_WARNING("blocked access to response header");
|
|
return false;
|
|
}
|
|
// if this is not a CORS call all headers are safe
|
|
if (!IsCrossSiteCORSRequest()) {
|
|
return true;
|
|
}
|
|
// Check for dangerous headers
|
|
// Make sure we don't leak header information from denied cross-site
|
|
// requests.
|
|
if (mChannel) {
|
|
nsresult status;
|
|
mChannel->GetStatus(&status);
|
|
if (NS_FAILED(status)) {
|
|
return false;
|
|
}
|
|
}
|
|
const char* kCrossOriginSafeHeaders[] = {
|
|
"cache-control", "content-language", "content-type", "expires",
|
|
"last-modified", "pragma"
|
|
};
|
|
for (uint32_t i = 0; i < ArrayLength(kCrossOriginSafeHeaders); ++i) {
|
|
if (header.LowerCaseEqualsASCII(kCrossOriginSafeHeaders[i])) {
|
|
return true;
|
|
}
|
|
}
|
|
nsAutoCString headerVal;
|
|
// The "Access-Control-Expose-Headers" header contains a comma separated
|
|
// list of method names.
|
|
httpChannel->
|
|
GetResponseHeader(NS_LITERAL_CSTRING("Access-Control-Expose-Headers"),
|
|
headerVal);
|
|
nsCCharSeparatedTokenizer exposeTokens(headerVal, ',');
|
|
bool isSafe = false;
|
|
while (exposeTokens.hasMoreTokens()) {
|
|
const nsDependentCSubstring& token = exposeTokens.nextToken();
|
|
if (token.IsEmpty()) {
|
|
continue;
|
|
}
|
|
if (!NS_IsValidHTTPToken(token)) {
|
|
return false;
|
|
}
|
|
|
|
if (token.EqualsLiteral("*") &&
|
|
(mState & XML_HTTP_REQUEST_AC_WITH_CREDENTIALS) !=
|
|
XML_HTTP_REQUEST_AC_WITH_CREDENTIALS /* See this->SetWithCredentials */)
|
|
{
|
|
isSafe = true;
|
|
} else if (header.Equals(token, nsCaseInsensitiveCStringComparator())) {
|
|
isSafe = true;
|
|
}
|
|
}
|
|
return isSafe;
|
|
}
|
|
|
|
IMPL_CSTRING_GETTER(GetAllResponseHeaders)
|
|
void
|
|
nsXMLHttpRequest::GetAllResponseHeaders(nsCString& aResponseHeaders)
|
|
{
|
|
aResponseHeaders.Truncate();
|
|
|
|
// If the state is UNSENT or OPENED,
|
|
// return the empty string and terminate these steps.
|
|
if (mState & (XML_HTTP_REQUEST_UNSENT |
|
|
XML_HTTP_REQUEST_OPENED | XML_HTTP_REQUEST_SENT)) {
|
|
return;
|
|
}
|
|
|
|
if (nsCOMPtr<nsIHttpChannel> httpChannel = GetCurrentHttpChannel()) {
|
|
RefPtr<nsHeaderVisitor> visitor = new nsHeaderVisitor(this, httpChannel);
|
|
if (NS_SUCCEEDED(httpChannel->VisitResponseHeaders(visitor))) {
|
|
aResponseHeaders = visitor->Headers();
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (!mChannel) {
|
|
return;
|
|
}
|
|
|
|
// Even non-http channels supply content type.
|
|
nsAutoCString value;
|
|
if (NS_SUCCEEDED(mChannel->GetContentType(value))) {
|
|
aResponseHeaders.AppendLiteral("Content-Type: ");
|
|
aResponseHeaders.Append(value);
|
|
if (NS_SUCCEEDED(mChannel->GetContentCharset(value)) && !value.IsEmpty()) {
|
|
aResponseHeaders.AppendLiteral(";charset=");
|
|
aResponseHeaders.Append(value);
|
|
}
|
|
aResponseHeaders.AppendLiteral("\r\n");
|
|
}
|
|
|
|
int64_t length;
|
|
if (NS_SUCCEEDED(mChannel->GetContentLength(&length))) {
|
|
aResponseHeaders.AppendLiteral("Content-Length: ");
|
|
aResponseHeaders.AppendInt(length);
|
|
aResponseHeaders.AppendLiteral("\r\n");
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::GetResponseHeader(const nsACString& aHeader,
|
|
nsACString& aResult)
|
|
{
|
|
ErrorResult rv;
|
|
GetResponseHeader(aHeader, aResult, rv);
|
|
return rv.StealNSResult();
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::GetResponseHeader(const nsACString& header,
|
|
nsACString& _retval, ErrorResult& aRv)
|
|
{
|
|
_retval.SetIsVoid(true);
|
|
|
|
nsCOMPtr<nsIHttpChannel> httpChannel = GetCurrentHttpChannel();
|
|
|
|
if (!httpChannel) {
|
|
// If the state is UNSENT or OPENED,
|
|
// return null and terminate these steps.
|
|
if (mState & (XML_HTTP_REQUEST_UNSENT |
|
|
XML_HTTP_REQUEST_OPENED | XML_HTTP_REQUEST_SENT)) {
|
|
return;
|
|
}
|
|
|
|
// Even non-http channels supply content type and content length.
|
|
// Remember we don't leak header information from denied cross-site
|
|
// requests.
|
|
nsresult status;
|
|
if (!mChannel ||
|
|
NS_FAILED(mChannel->GetStatus(&status)) ||
|
|
NS_FAILED(status)) {
|
|
return;
|
|
}
|
|
|
|
// Content Type:
|
|
if (header.LowerCaseEqualsASCII("content-type")) {
|
|
if (NS_FAILED(mChannel->GetContentType(_retval))) {
|
|
// Means no content type
|
|
_retval.SetIsVoid(true);
|
|
return;
|
|
}
|
|
|
|
nsCString value;
|
|
if (NS_SUCCEEDED(mChannel->GetContentCharset(value)) &&
|
|
!value.IsEmpty()) {
|
|
_retval.AppendLiteral(";charset=");
|
|
_retval.Append(value);
|
|
}
|
|
}
|
|
|
|
// Content Length:
|
|
else if (header.LowerCaseEqualsASCII("content-length")) {
|
|
int64_t length;
|
|
if (NS_SUCCEEDED(mChannel->GetContentLength(&length))) {
|
|
_retval.AppendInt(length);
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
// Check for dangerous headers
|
|
if (!IsSafeHeader(header, httpChannel)) {
|
|
return;
|
|
}
|
|
|
|
aRv = httpChannel->GetResponseHeader(header, _retval);
|
|
if (aRv.ErrorCodeIs(NS_ERROR_NOT_AVAILABLE)) {
|
|
// Means no header
|
|
_retval.SetIsVoid(true);
|
|
aRv.SuppressException();
|
|
}
|
|
}
|
|
|
|
already_AddRefed<nsILoadGroup>
|
|
nsXMLHttpRequest::GetLoadGroup() const
|
|
{
|
|
if (mState & XML_HTTP_REQUEST_BACKGROUND) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (mLoadGroup) {
|
|
nsCOMPtr<nsILoadGroup> ref = mLoadGroup;
|
|
return ref.forget();
|
|
}
|
|
|
|
nsresult rv = NS_ERROR_FAILURE;
|
|
nsIScriptContext* sc =
|
|
const_cast<nsXMLHttpRequest*>(this)->GetContextForEventHandlers(&rv);
|
|
nsCOMPtr<nsIDocument> doc =
|
|
nsContentUtils::GetDocumentFromScriptContext(sc);
|
|
if (doc) {
|
|
return doc->GetDocumentLoadGroup();
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
nsresult
|
|
nsXMLHttpRequest::CreateReadystatechangeEvent(nsIDOMEvent** aDOMEvent)
|
|
{
|
|
RefPtr<Event> event = NS_NewDOMEvent(this, nullptr, nullptr);
|
|
event.forget(aDOMEvent);
|
|
|
|
(*aDOMEvent)->InitEvent(NS_LITERAL_STRING(READYSTATE_STR),
|
|
false, false);
|
|
|
|
// We assume anyone who managed to call CreateReadystatechangeEvent is trusted
|
|
(*aDOMEvent)->SetTrusted(true);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::DispatchProgressEvent(DOMEventTargetHelper* aTarget,
|
|
const nsAString& aType,
|
|
bool aLengthComputable,
|
|
int64_t aLoaded, int64_t aTotal)
|
|
{
|
|
NS_ASSERTION(aTarget, "null target");
|
|
NS_ASSERTION(!aType.IsEmpty(), "missing event type");
|
|
|
|
if (NS_FAILED(CheckInnerWindowCorrectness()) ||
|
|
(!AllowUploadProgress() && aTarget == mUpload)) {
|
|
return;
|
|
}
|
|
|
|
bool dispatchLoadend = aType.EqualsLiteral(LOAD_STR) ||
|
|
aType.EqualsLiteral(ERROR_STR) ||
|
|
aType.EqualsLiteral(TIMEOUT_STR) ||
|
|
aType.EqualsLiteral(ABORT_STR);
|
|
|
|
ProgressEventInit init;
|
|
init.mBubbles = false;
|
|
init.mCancelable = false;
|
|
init.mLengthComputable = aLengthComputable;
|
|
init.mLoaded = aLoaded;
|
|
init.mTotal = (aTotal == -1) ? 0 : aTotal;
|
|
|
|
RefPtr<ProgressEvent> event =
|
|
ProgressEvent::Constructor(aTarget, aType, init);
|
|
event->SetTrusted(true);
|
|
|
|
aTarget->DispatchDOMEvent(nullptr, event, nullptr, nullptr);
|
|
|
|
if (dispatchLoadend) {
|
|
DispatchProgressEvent(aTarget, NS_LITERAL_STRING(LOADEND_STR),
|
|
aLengthComputable, aLoaded, aTotal);
|
|
}
|
|
}
|
|
|
|
already_AddRefed<nsIHttpChannel>
|
|
nsXMLHttpRequest::GetCurrentHttpChannel()
|
|
{
|
|
nsCOMPtr<nsIHttpChannel> httpChannel = do_QueryInterface(mChannel);
|
|
return httpChannel.forget();
|
|
}
|
|
|
|
already_AddRefed<nsIJARChannel>
|
|
nsXMLHttpRequest::GetCurrentJARChannel()
|
|
{
|
|
nsCOMPtr<nsIJARChannel> appChannel = do_QueryInterface(mChannel);
|
|
return appChannel.forget();
|
|
}
|
|
|
|
bool
|
|
nsXMLHttpRequest::IsSystemXHR()
|
|
{
|
|
return mIsSystem || nsContentUtils::IsSystemPrincipal(mPrincipal);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::Open(const nsACString& method, const nsACString& url,
|
|
bool async, const nsAString& user,
|
|
const nsAString& password, uint8_t optional_argc)
|
|
{
|
|
if (!optional_argc) {
|
|
// No optional arguments were passed in. Default async to true.
|
|
async = true;
|
|
}
|
|
Optional<nsAString> realUser;
|
|
if (optional_argc > 1) {
|
|
realUser = &user;
|
|
}
|
|
Optional<nsAString> realPassword;
|
|
if (optional_argc > 2) {
|
|
realPassword = &password;
|
|
}
|
|
return Open(method, url, async, realUser, realPassword);
|
|
}
|
|
|
|
nsresult
|
|
nsXMLHttpRequest::Open(const nsACString& inMethod, const nsACString& url,
|
|
bool async, const Optional<nsAString>& user,
|
|
const Optional<nsAString>& password)
|
|
{
|
|
NS_ENSURE_ARG(!inMethod.IsEmpty());
|
|
|
|
if (!async && !DontWarnAboutSyncXHR() && GetOwner() &&
|
|
GetOwner()->GetExtantDoc()) {
|
|
GetOwner()->GetExtantDoc()->WarnOnceAbout(nsIDocument::eSyncXMLHttpRequest);
|
|
}
|
|
|
|
Telemetry::Accumulate(Telemetry::XMLHTTPREQUEST_ASYNC_OR_SYNC,
|
|
async ? 0 : 1);
|
|
|
|
NS_ENSURE_TRUE(mPrincipal, NS_ERROR_NOT_INITIALIZED);
|
|
|
|
nsAutoCString method;
|
|
nsresult rv = FetchUtil::GetValidRequestMethod(inMethod, method);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
// sync request is not allowed to use responseType or timeout
|
|
// in window context
|
|
if (!async && HasOrHasHadOwner() &&
|
|
(mTimeoutMilliseconds ||
|
|
mResponseType != XML_HTTP_RESPONSE_TYPE_DEFAULT)) {
|
|
if (mTimeoutMilliseconds) {
|
|
LogMessage("TimeoutSyncXHRWarning", GetOwner());
|
|
}
|
|
if (mResponseType != XML_HTTP_RESPONSE_TYPE_DEFAULT) {
|
|
LogMessage("ResponseTypeSyncXHRWarning", GetOwner());
|
|
}
|
|
return NS_ERROR_DOM_INVALID_ACCESS_ERR;
|
|
}
|
|
|
|
nsCOMPtr<nsIURI> uri;
|
|
|
|
if (mState & (XML_HTTP_REQUEST_OPENED |
|
|
XML_HTTP_REQUEST_HEADERS_RECEIVED |
|
|
XML_HTTP_REQUEST_LOADING |
|
|
XML_HTTP_REQUEST_SENT)) {
|
|
// IE aborts as well
|
|
Abort();
|
|
|
|
// XXX We should probably send a warning to the JS console
|
|
// that load was aborted and event listeners were cleared
|
|
// since this looks like a situation that could happen
|
|
// by accident and you could spend a lot of time wondering
|
|
// why things didn't work.
|
|
}
|
|
|
|
// Unset any pre-existing aborted and timed-out states.
|
|
mState &= ~XML_HTTP_REQUEST_ABORTED & ~XML_HTTP_REQUEST_TIMED_OUT;
|
|
|
|
if (async) {
|
|
mState |= XML_HTTP_REQUEST_ASYNC;
|
|
} else {
|
|
mState &= ~XML_HTTP_REQUEST_ASYNC;
|
|
}
|
|
|
|
nsIScriptContext* sc = GetContextForEventHandlers(&rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
nsCOMPtr<nsIDocument> doc =
|
|
nsContentUtils::GetDocumentFromScriptContext(sc);
|
|
|
|
nsCOMPtr<nsIURI> baseURI;
|
|
if (mBaseURI) {
|
|
baseURI = mBaseURI;
|
|
}
|
|
else if (doc) {
|
|
baseURI = doc->GetBaseURI();
|
|
}
|
|
|
|
rv = NS_NewURI(getter_AddRefs(uri), url, nullptr, baseURI);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
rv = CheckInnerWindowCorrectness();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// XXXbz this is wrong: we should only be looking at whether
|
|
// user/password were passed, not at the values! See bug 759624.
|
|
if (user.WasPassed() && !user.Value().IsEmpty()) {
|
|
nsAutoCString userpass;
|
|
CopyUTF16toUTF8(user.Value(), userpass);
|
|
if (password.WasPassed() && !password.Value().IsEmpty()) {
|
|
userpass.Append(':');
|
|
AppendUTF16toUTF8(password.Value(), userpass);
|
|
}
|
|
uri->SetUserPass(userpass);
|
|
}
|
|
|
|
// Clear our record of previously set headers so future header set
|
|
// operations will merge/override correctly.
|
|
mAlreadySetHeaders.Clear();
|
|
|
|
// When we are called from JS we can find the load group for the page,
|
|
// and add ourselves to it. This way any pending requests
|
|
// will be automatically aborted if the user leaves the page.
|
|
nsCOMPtr<nsILoadGroup> loadGroup = GetLoadGroup();
|
|
|
|
nsSecurityFlags secFlags;
|
|
nsLoadFlags loadFlags = nsIRequest::LOAD_BACKGROUND |
|
|
nsIChannel::LOAD_CLASSIFY_URI;
|
|
if (nsContentUtils::IsSystemPrincipal(mPrincipal)) {
|
|
// When chrome is loading we want to make sure to sandbox any potential
|
|
// result document. We also want to allow cross-origin loads.
|
|
secFlags = nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL |
|
|
nsILoadInfo::SEC_SANDBOXED;
|
|
}
|
|
else if (IsSystemXHR()) {
|
|
// For pages that have appropriate permissions, we want to still allow
|
|
// cross-origin loads, but make sure that the any potential result
|
|
// documents get the same principal as the loader.
|
|
secFlags = nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_INHERITS |
|
|
nsILoadInfo::SEC_FORCE_INHERIT_PRINCIPAL;
|
|
loadFlags |= nsIChannel::LOAD_BYPASS_SERVICE_WORKER;
|
|
}
|
|
else {
|
|
// Otherwise use CORS. Again, make sure that potential result documents
|
|
// use the same principal as the loader.
|
|
secFlags = nsILoadInfo::SEC_REQUIRE_CORS_DATA_INHERITS |
|
|
nsILoadInfo::SEC_FORCE_INHERIT_PRINCIPAL;
|
|
}
|
|
|
|
if (mIsAnon) {
|
|
secFlags |= nsILoadInfo::SEC_COOKIES_OMIT;
|
|
}
|
|
|
|
// If we have the document, use it. Unfortunately, for dedicated workers
|
|
// 'doc' ends up being the parent document, which is not the document
|
|
// that we want to use. So make sure to avoid using 'doc' in that situation.
|
|
if (doc && doc->NodePrincipal() == mPrincipal) {
|
|
rv = NS_NewChannel(getter_AddRefs(mChannel),
|
|
uri,
|
|
doc,
|
|
secFlags,
|
|
nsIContentPolicy::TYPE_INTERNAL_XMLHTTPREQUEST,
|
|
loadGroup,
|
|
nullptr, // aCallbacks
|
|
loadFlags);
|
|
} else {
|
|
//otherwise use the principal
|
|
rv = NS_NewChannel(getter_AddRefs(mChannel),
|
|
uri,
|
|
mPrincipal,
|
|
secFlags,
|
|
nsIContentPolicy::TYPE_INTERNAL_XMLHTTPREQUEST,
|
|
loadGroup,
|
|
nullptr, // aCallbacks
|
|
loadFlags);
|
|
}
|
|
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
mState &= ~XML_HTTP_REQUEST_HAD_UPLOAD_LISTENERS_ON_SEND;
|
|
|
|
nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(mChannel));
|
|
if (httpChannel) {
|
|
rv = httpChannel->SetRequestMethod(method);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Set the initiator type
|
|
nsCOMPtr<nsITimedChannel> timedChannel(do_QueryInterface(httpChannel));
|
|
if (timedChannel) {
|
|
timedChannel->SetInitiatorType(NS_LITERAL_STRING("xmlhttprequest"));
|
|
}
|
|
}
|
|
|
|
ChangeState(XML_HTTP_REQUEST_OPENED);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::PopulateNetworkInterfaceId()
|
|
{
|
|
if (mNetworkInterfaceId.IsEmpty()) {
|
|
return;
|
|
}
|
|
nsCOMPtr<nsIHttpChannelInternal> channel(do_QueryInterface(mChannel));
|
|
if (!channel) {
|
|
return;
|
|
}
|
|
channel->SetNetworkInterfaceId(mNetworkInterfaceId);
|
|
}
|
|
|
|
/*
|
|
* "Copy" from a stream.
|
|
*/
|
|
NS_METHOD
|
|
nsXMLHttpRequest::StreamReaderFunc(nsIInputStream* in,
|
|
void* closure,
|
|
const char* fromRawSegment,
|
|
uint32_t toOffset,
|
|
uint32_t count,
|
|
uint32_t *writeCount)
|
|
{
|
|
nsXMLHttpRequest* xmlHttpRequest = static_cast<nsXMLHttpRequest*>(closure);
|
|
if (!xmlHttpRequest || !writeCount) {
|
|
NS_WARNING("XMLHttpRequest cannot read from stream: no closure or writeCount");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsresult rv = NS_OK;
|
|
|
|
if (xmlHttpRequest->mResponseType == XML_HTTP_RESPONSE_TYPE_BLOB ||
|
|
xmlHttpRequest->mResponseType == XML_HTTP_RESPONSE_TYPE_MOZ_BLOB) {
|
|
if (!xmlHttpRequest->mDOMBlob) {
|
|
if (!xmlHttpRequest->mBlobSet) {
|
|
xmlHttpRequest->mBlobSet = new BlobSet();
|
|
}
|
|
rv = xmlHttpRequest->mBlobSet->AppendVoidPtr(fromRawSegment, count);
|
|
}
|
|
// Clear the cache so that the blob size is updated.
|
|
if (xmlHttpRequest->mResponseType == XML_HTTP_RESPONSE_TYPE_MOZ_BLOB) {
|
|
xmlHttpRequest->mResponseBlob = nullptr;
|
|
}
|
|
} else if ((xmlHttpRequest->mResponseType == XML_HTTP_RESPONSE_TYPE_ARRAYBUFFER &&
|
|
!xmlHttpRequest->mIsMappedArrayBuffer) ||
|
|
xmlHttpRequest->mResponseType == XML_HTTP_RESPONSE_TYPE_CHUNKED_ARRAYBUFFER) {
|
|
// get the initial capacity to something reasonable to avoid a bunch of reallocs right
|
|
// at the start
|
|
if (xmlHttpRequest->mArrayBufferBuilder.capacity() == 0)
|
|
xmlHttpRequest->mArrayBufferBuilder.setCapacity(PR_MAX(count, XML_HTTP_REQUEST_ARRAYBUFFER_MIN_SIZE));
|
|
|
|
xmlHttpRequest->mArrayBufferBuilder.append(reinterpret_cast<const uint8_t*>(fromRawSegment), count,
|
|
XML_HTTP_REQUEST_ARRAYBUFFER_MAX_GROWTH);
|
|
} else if (xmlHttpRequest->mResponseType == XML_HTTP_RESPONSE_TYPE_DEFAULT &&
|
|
xmlHttpRequest->mResponseXML) {
|
|
// Copy for our own use
|
|
if (!xmlHttpRequest->mResponseBody.Append(fromRawSegment, count, fallible)) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
} else if (xmlHttpRequest->mResponseType == XML_HTTP_RESPONSE_TYPE_DEFAULT ||
|
|
xmlHttpRequest->mResponseType == XML_HTTP_RESPONSE_TYPE_TEXT ||
|
|
xmlHttpRequest->mResponseType == XML_HTTP_RESPONSE_TYPE_JSON ||
|
|
xmlHttpRequest->mResponseType == XML_HTTP_RESPONSE_TYPE_CHUNKED_TEXT) {
|
|
NS_ASSERTION(!xmlHttpRequest->mResponseXML,
|
|
"We shouldn't be parsing a doc here");
|
|
xmlHttpRequest->AppendToResponseText(fromRawSegment, count);
|
|
}
|
|
|
|
if (xmlHttpRequest->mState & XML_HTTP_REQUEST_PARSEBODY) {
|
|
// Give the same data to the parser.
|
|
|
|
// We need to wrap the data in a new lightweight stream and pass that
|
|
// to the parser, because calling ReadSegments() recursively on the same
|
|
// stream is not supported.
|
|
nsCOMPtr<nsIInputStream> copyStream;
|
|
rv = NS_NewByteInputStream(getter_AddRefs(copyStream), fromRawSegment, count);
|
|
|
|
if (NS_SUCCEEDED(rv) && xmlHttpRequest->mXMLParserStreamListener) {
|
|
NS_ASSERTION(copyStream, "NS_NewByteInputStream lied");
|
|
nsresult parsingResult = xmlHttpRequest->mXMLParserStreamListener
|
|
->OnDataAvailable(xmlHttpRequest->mChannel,
|
|
xmlHttpRequest->mContext,
|
|
copyStream, toOffset, count);
|
|
|
|
// No use to continue parsing if we failed here, but we
|
|
// should still finish reading the stream
|
|
if (NS_FAILED(parsingResult)) {
|
|
xmlHttpRequest->mState &= ~XML_HTTP_REQUEST_PARSEBODY;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
*writeCount = count;
|
|
} else {
|
|
*writeCount = 0;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
bool nsXMLHttpRequest::CreateDOMBlob(nsIRequest *request)
|
|
{
|
|
nsCOMPtr<nsIFile> file;
|
|
nsCOMPtr<nsIFileChannel> fc = do_QueryInterface(request);
|
|
if (fc) {
|
|
fc->GetFile(getter_AddRefs(file));
|
|
}
|
|
|
|
if (!file)
|
|
return false;
|
|
|
|
nsAutoCString contentType;
|
|
mChannel->GetContentType(contentType);
|
|
|
|
mDOMBlob = File::CreateFromFile(GetOwner(), file, EmptyString(),
|
|
NS_ConvertASCIItoUTF16(contentType));
|
|
|
|
mBlobSet = nullptr;
|
|
NS_ASSERTION(mResponseBody.IsEmpty(), "mResponseBody should be empty");
|
|
return true;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::OnDataAvailable(nsIRequest *request,
|
|
nsISupports *ctxt,
|
|
nsIInputStream *inStr,
|
|
uint64_t sourceOffset,
|
|
uint32_t count)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(inStr);
|
|
|
|
MOZ_ASSERT(mContext.get() == ctxt,"start context different from OnDataAvailable context");
|
|
|
|
mProgressSinceLastProgressEvent = true;
|
|
|
|
bool cancelable = false;
|
|
if ((mResponseType == XML_HTTP_RESPONSE_TYPE_BLOB ||
|
|
mResponseType == XML_HTTP_RESPONSE_TYPE_MOZ_BLOB) && !mDOMBlob) {
|
|
cancelable = CreateDOMBlob(request);
|
|
// The nsIStreamListener contract mandates us
|
|
// to read from the stream before returning.
|
|
}
|
|
|
|
uint32_t totalRead;
|
|
nsresult rv = inStr->ReadSegments(nsXMLHttpRequest::StreamReaderFunc,
|
|
(void*)this, count, &totalRead);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (cancelable) {
|
|
// We don't have to read from the local file for the blob response
|
|
ErrorResult error;
|
|
mDataAvailable = mDOMBlob->GetSize(error);
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
|
|
ChangeState(XML_HTTP_REQUEST_LOADING);
|
|
return request->Cancel(NS_OK);
|
|
}
|
|
|
|
mDataAvailable += totalRead;
|
|
|
|
ChangeState(XML_HTTP_REQUEST_LOADING);
|
|
|
|
MaybeDispatchProgressEvents(false);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::OnStartRequest(nsIRequest *request, nsISupports *ctxt)
|
|
{
|
|
PROFILER_LABEL("nsXMLHttpRequest", "OnStartRequest",
|
|
js::ProfileEntry::Category::NETWORK);
|
|
|
|
nsresult rv = NS_OK;
|
|
if (!mFirstStartRequestSeen && mRequestObserver) {
|
|
mFirstStartRequestSeen = true;
|
|
mRequestObserver->OnStartRequest(request, ctxt);
|
|
}
|
|
|
|
if (request != mChannel) {
|
|
// Can this still happen?
|
|
return NS_OK;
|
|
}
|
|
|
|
// Don't do anything if we have been aborted
|
|
if (mState & XML_HTTP_REQUEST_UNSENT)
|
|
return NS_OK;
|
|
|
|
/* Apparently, Abort() should set XML_HTTP_REQUEST_UNSENT. See bug 361773.
|
|
XHR2 spec says this is correct. */
|
|
if (mState & XML_HTTP_REQUEST_ABORTED) {
|
|
NS_ERROR("Ugh, still getting data on an aborted XMLHttpRequest!");
|
|
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
// Don't do anything if we have timed out.
|
|
if (mState & XML_HTTP_REQUEST_TIMED_OUT) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<nsIChannel> channel(do_QueryInterface(request));
|
|
NS_ENSURE_TRUE(channel, NS_ERROR_UNEXPECTED);
|
|
|
|
nsresult status;
|
|
request->GetStatus(&status);
|
|
mErrorLoad = mErrorLoad || NS_FAILED(status);
|
|
|
|
if (mUpload && !mUploadComplete && !mErrorLoad &&
|
|
(mState & XML_HTTP_REQUEST_ASYNC)) {
|
|
if (mProgressTimerIsActive) {
|
|
mProgressTimerIsActive = false;
|
|
mProgressNotifier->Cancel();
|
|
}
|
|
if (mUploadTransferred < mUploadTotal) {
|
|
mUploadTransferred = mUploadTotal;
|
|
mProgressSinceLastProgressEvent = true;
|
|
mUploadLengthComputable = true;
|
|
MaybeDispatchProgressEvents(true);
|
|
}
|
|
mUploadComplete = true;
|
|
DispatchProgressEvent(mUpload, NS_LITERAL_STRING(LOAD_STR),
|
|
true, mUploadTotal, mUploadTotal);
|
|
}
|
|
|
|
mContext = ctxt;
|
|
mState |= XML_HTTP_REQUEST_PARSEBODY;
|
|
ChangeState(XML_HTTP_REQUEST_HEADERS_RECEIVED);
|
|
|
|
ResetResponse();
|
|
|
|
if (!mOverrideMimeType.IsEmpty()) {
|
|
channel->SetContentType(NS_ConvertUTF16toUTF8(mOverrideMimeType));
|
|
}
|
|
|
|
DetectCharset();
|
|
|
|
// Set up arraybuffer
|
|
if (mResponseType == XML_HTTP_RESPONSE_TYPE_ARRAYBUFFER && NS_SUCCEEDED(status)) {
|
|
if (mIsMappedArrayBuffer) {
|
|
nsCOMPtr<nsIJARChannel> jarChannel = do_QueryInterface(channel);
|
|
if (jarChannel) {
|
|
nsCOMPtr<nsIURI> uri;
|
|
rv = channel->GetURI(getter_AddRefs(uri));
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsAutoCString file;
|
|
nsAutoCString scheme;
|
|
uri->GetScheme(scheme);
|
|
if (scheme.LowerCaseEqualsLiteral("app")) {
|
|
uri->GetPath(file);
|
|
// The actual file inside zip package has no leading slash.
|
|
file.Trim("/", true, false, false);
|
|
} else if (scheme.LowerCaseEqualsLiteral("jar")) {
|
|
nsCOMPtr<nsIJARURI> jarURI = do_QueryInterface(uri);
|
|
if (jarURI) {
|
|
jarURI->GetJAREntry(file);
|
|
}
|
|
}
|
|
nsCOMPtr<nsIFile> jarFile;
|
|
jarChannel->GetJarFile(getter_AddRefs(jarFile));
|
|
if (!jarFile) {
|
|
mIsMappedArrayBuffer = false;
|
|
} else {
|
|
rv = mArrayBufferBuilder.mapToFileInPackage(file, jarFile);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
mIsMappedArrayBuffer = false;
|
|
} else {
|
|
channel->SetContentType(NS_LITERAL_CSTRING("application/mem-mapped"));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// If memory mapping failed, mIsMappedArrayBuffer would be set to false,
|
|
// and we want it fallback to the malloc way.
|
|
if (!mIsMappedArrayBuffer) {
|
|
int64_t contentLength;
|
|
rv = channel->GetContentLength(&contentLength);
|
|
if (NS_SUCCEEDED(rv) &&
|
|
contentLength > 0 &&
|
|
contentLength < XML_HTTP_REQUEST_MAX_CONTENT_LENGTH_PREALLOCATE) {
|
|
mArrayBufferBuilder.setCapacity(static_cast<int32_t>(contentLength));
|
|
}
|
|
}
|
|
}
|
|
|
|
// Set up responseXML
|
|
bool parseBody = mResponseType == XML_HTTP_RESPONSE_TYPE_DEFAULT ||
|
|
mResponseType == XML_HTTP_RESPONSE_TYPE_DOCUMENT;
|
|
nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(mChannel));
|
|
if (parseBody && httpChannel) {
|
|
nsAutoCString method;
|
|
httpChannel->GetRequestMethod(method);
|
|
parseBody = !method.EqualsLiteral("HEAD");
|
|
}
|
|
|
|
mIsHtml = false;
|
|
mWarnAboutSyncHtml = false;
|
|
if (parseBody && NS_SUCCEEDED(status)) {
|
|
// We can gain a huge performance win by not even trying to
|
|
// parse non-XML data. This also protects us from the situation
|
|
// where we have an XML document and sink, but HTML (or other)
|
|
// parser, which can produce unreliable results.
|
|
nsAutoCString type;
|
|
channel->GetContentType(type);
|
|
|
|
if ((mResponseType == XML_HTTP_RESPONSE_TYPE_DOCUMENT) &&
|
|
type.EqualsLiteral("text/html")) {
|
|
// HTML parsing is only supported for responseType == "document" to
|
|
// avoid running the parser and, worse, populating responseXML for
|
|
// legacy users of XHR who use responseType == "" for retrieving the
|
|
// responseText of text/html resources. This legacy case is so common
|
|
// that it's not useful to emit a warning about it.
|
|
if (!(mState & XML_HTTP_REQUEST_ASYNC)) {
|
|
// We don't make cool new features available in the bad synchronous
|
|
// mode. The synchronous mode is for legacy only.
|
|
mWarnAboutSyncHtml = true;
|
|
mState &= ~XML_HTTP_REQUEST_PARSEBODY;
|
|
} else {
|
|
mIsHtml = true;
|
|
}
|
|
} else if (type.Find("xml") == kNotFound) {
|
|
mState &= ~XML_HTTP_REQUEST_PARSEBODY;
|
|
}
|
|
} else {
|
|
// The request failed, so we shouldn't be parsing anyway
|
|
mState &= ~XML_HTTP_REQUEST_PARSEBODY;
|
|
}
|
|
|
|
if (mState & XML_HTTP_REQUEST_PARSEBODY) {
|
|
nsCOMPtr<nsIURI> baseURI, docURI;
|
|
rv = mChannel->GetURI(getter_AddRefs(docURI));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
baseURI = docURI;
|
|
|
|
nsIScriptContext* sc = GetContextForEventHandlers(&rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
nsCOMPtr<nsIDocument> doc =
|
|
nsContentUtils::GetDocumentFromScriptContext(sc);
|
|
nsCOMPtr<nsIURI> chromeXHRDocURI, chromeXHRDocBaseURI;
|
|
if (doc) {
|
|
chromeXHRDocURI = doc->GetDocumentURI();
|
|
chromeXHRDocBaseURI = doc->GetBaseURI();
|
|
}
|
|
|
|
// Create an empty document from it.
|
|
const nsAString& emptyStr = EmptyString();
|
|
nsCOMPtr<nsIDOMDocument> responseDoc;
|
|
nsIGlobalObject* global = DOMEventTargetHelper::GetParentObject();
|
|
|
|
nsCOMPtr<nsIPrincipal> requestingPrincipal;
|
|
rv = nsContentUtils::GetSecurityManager()->
|
|
GetChannelResultPrincipal(channel, getter_AddRefs(requestingPrincipal));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = NS_NewDOMDocument(getter_AddRefs(responseDoc),
|
|
emptyStr, emptyStr, nullptr, docURI,
|
|
baseURI, requestingPrincipal, true, global,
|
|
mIsHtml ? DocumentFlavorHTML :
|
|
DocumentFlavorLegacyGuess);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
mResponseXML = do_QueryInterface(responseDoc);
|
|
mResponseXML->SetChromeXHRDocURI(chromeXHRDocURI);
|
|
mResponseXML->SetChromeXHRDocBaseURI(chromeXHRDocBaseURI);
|
|
|
|
if (nsContentUtils::IsSystemPrincipal(mPrincipal)) {
|
|
mResponseXML->ForceEnableXULXBL();
|
|
}
|
|
|
|
nsCOMPtr<nsILoadInfo> loadInfo = mChannel->GetLoadInfo();
|
|
MOZ_ASSERT(loadInfo);
|
|
bool isCrossSite = loadInfo->GetTainting() != LoadTainting::Basic;
|
|
|
|
if (isCrossSite) {
|
|
nsCOMPtr<nsIHTMLDocument> htmlDoc = do_QueryInterface(mResponseXML);
|
|
if (htmlDoc) {
|
|
htmlDoc->DisableCookieAccess();
|
|
}
|
|
}
|
|
|
|
nsCOMPtr<nsIStreamListener> listener;
|
|
nsCOMPtr<nsILoadGroup> loadGroup;
|
|
channel->GetLoadGroup(getter_AddRefs(loadGroup));
|
|
|
|
rv = mResponseXML->StartDocumentLoad(kLoadAsData, channel, loadGroup,
|
|
nullptr, getter_AddRefs(listener),
|
|
!isCrossSite);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
mXMLParserStreamListener = listener;
|
|
rv = mXMLParserStreamListener->OnStartRequest(request, ctxt);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
// We won't get any progress events anyway if we didn't have progress
|
|
// events when starting the request - so maybe no need to start timer here.
|
|
if (NS_SUCCEEDED(rv) &&
|
|
(mState & XML_HTTP_REQUEST_ASYNC) &&
|
|
HasListenersFor(nsGkAtoms::onprogress)) {
|
|
StartProgressEventTimer();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::OnStopRequest(nsIRequest *request, nsISupports *ctxt, nsresult status)
|
|
{
|
|
PROFILER_LABEL("nsXMLHttpRequest", "OnStopRequest",
|
|
js::ProfileEntry::Category::NETWORK);
|
|
|
|
if (request != mChannel) {
|
|
// Can this still happen?
|
|
return NS_OK;
|
|
}
|
|
|
|
mWaitingForOnStopRequest = false;
|
|
|
|
if (mRequestObserver) {
|
|
NS_ASSERTION(mFirstStartRequestSeen, "Inconsistent state!");
|
|
mFirstStartRequestSeen = false;
|
|
mRequestObserver->OnStopRequest(request, ctxt, status);
|
|
}
|
|
|
|
// make sure to notify the listener if we were aborted
|
|
// XXX in fact, why don't we do the cleanup below in this case??
|
|
// XML_HTTP_REQUEST_UNSENT is for abort calls. See OnStartRequest above.
|
|
if ((mState & XML_HTTP_REQUEST_UNSENT) ||
|
|
(mState & XML_HTTP_REQUEST_TIMED_OUT)) {
|
|
if (mXMLParserStreamListener)
|
|
(void) mXMLParserStreamListener->OnStopRequest(request, ctxt, status);
|
|
return NS_OK;
|
|
}
|
|
|
|
// Is this good enough here?
|
|
if (mState & XML_HTTP_REQUEST_PARSEBODY && mXMLParserStreamListener) {
|
|
mXMLParserStreamListener->OnStopRequest(request, ctxt, status);
|
|
}
|
|
|
|
mXMLParserStreamListener = nullptr;
|
|
mContext = nullptr;
|
|
|
|
// If we're received data since the last progress event, make sure to fire
|
|
// an event for it, except in the HTML case, defer the last progress event
|
|
// until the parser is done.
|
|
if (!mIsHtml) {
|
|
MaybeDispatchProgressEvents(true);
|
|
}
|
|
|
|
if (NS_SUCCEEDED(status) &&
|
|
(mResponseType == XML_HTTP_RESPONSE_TYPE_BLOB ||
|
|
mResponseType == XML_HTTP_RESPONSE_TYPE_MOZ_BLOB)) {
|
|
if (!mDOMBlob) {
|
|
CreateDOMBlob(request);
|
|
}
|
|
if (mDOMBlob) {
|
|
mResponseBlob = mDOMBlob;
|
|
mDOMBlob = nullptr;
|
|
} else {
|
|
// mBlobSet can be null if the channel is non-file non-cacheable
|
|
// and if the response length is zero.
|
|
if (!mBlobSet) {
|
|
mBlobSet = new BlobSet();
|
|
}
|
|
// Smaller files may be written in cache map instead of separate files.
|
|
// Also, no-store response cannot be written in persistent cache.
|
|
nsAutoCString contentType;
|
|
mChannel->GetContentType(contentType);
|
|
|
|
ErrorResult rv;
|
|
mResponseBlob = mBlobSet->GetBlobInternal(GetOwner(), contentType, rv);
|
|
mBlobSet = nullptr;
|
|
|
|
if (NS_WARN_IF(rv.Failed())) {
|
|
return rv.StealNSResult();
|
|
}
|
|
}
|
|
NS_ASSERTION(mResponseBody.IsEmpty(), "mResponseBody should be empty");
|
|
NS_ASSERTION(mResponseText.IsEmpty(), "mResponseText should be empty");
|
|
} else if (NS_SUCCEEDED(status) &&
|
|
((mResponseType == XML_HTTP_RESPONSE_TYPE_ARRAYBUFFER &&
|
|
!mIsMappedArrayBuffer) ||
|
|
mResponseType == XML_HTTP_RESPONSE_TYPE_CHUNKED_ARRAYBUFFER)) {
|
|
// set the capacity down to the actual length, to realloc back
|
|
// down to the actual size
|
|
if (!mArrayBufferBuilder.setCapacity(mArrayBufferBuilder.length())) {
|
|
// this should never happen!
|
|
status = NS_ERROR_UNEXPECTED;
|
|
}
|
|
}
|
|
|
|
nsCOMPtr<nsIChannel> channel(do_QueryInterface(request));
|
|
NS_ENSURE_TRUE(channel, NS_ERROR_UNEXPECTED);
|
|
|
|
channel->SetNotificationCallbacks(nullptr);
|
|
mNotificationCallbacks = nullptr;
|
|
mChannelEventSink = nullptr;
|
|
mProgressEventSink = nullptr;
|
|
|
|
mState &= ~XML_HTTP_REQUEST_SYNCLOOPING;
|
|
|
|
if (NS_FAILED(status)) {
|
|
// This can happen if the server is unreachable. Other possible
|
|
// reasons are that the user leaves the page or hits the ESC key.
|
|
|
|
mErrorLoad = true;
|
|
mResponseXML = nullptr;
|
|
}
|
|
|
|
// If we're uninitialized at this point, we encountered an error
|
|
// earlier and listeners have already been notified. Also we do
|
|
// not want to do this if we already completed.
|
|
if (mState & (XML_HTTP_REQUEST_UNSENT |
|
|
XML_HTTP_REQUEST_DONE)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!mResponseXML) {
|
|
ChangeStateToDone();
|
|
return NS_OK;
|
|
}
|
|
if (mIsHtml) {
|
|
NS_ASSERTION(!(mState & XML_HTTP_REQUEST_SYNCLOOPING),
|
|
"We weren't supposed to support HTML parsing with XHR!");
|
|
nsCOMPtr<EventTarget> eventTarget = do_QueryInterface(mResponseXML);
|
|
EventListenerManager* manager =
|
|
eventTarget->GetOrCreateListenerManager();
|
|
manager->AddEventListenerByType(new nsXHRParseEndListener(this),
|
|
NS_LITERAL_STRING("DOMContentLoaded"),
|
|
TrustedEventsAtSystemGroupBubble());
|
|
return NS_OK;
|
|
}
|
|
// We might have been sent non-XML data. If that was the case,
|
|
// we should null out the document member. The idea in this
|
|
// check here is that if there is no document element it is not
|
|
// an XML document. We might need a fancier check...
|
|
if (!mResponseXML->GetRootElement()) {
|
|
mResponseXML = nullptr;
|
|
}
|
|
ChangeStateToDone();
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::ChangeStateToDone()
|
|
{
|
|
if (mIsHtml) {
|
|
// In the HTML case, this has to be deferred, because the parser doesn't
|
|
// do it's job synchronously.
|
|
MaybeDispatchProgressEvents(true);
|
|
}
|
|
|
|
ChangeState(XML_HTTP_REQUEST_DONE, true);
|
|
if (mTimeoutTimer) {
|
|
mTimeoutTimer->Cancel();
|
|
}
|
|
|
|
NS_NAMED_LITERAL_STRING(errorStr, ERROR_STR);
|
|
NS_NAMED_LITERAL_STRING(loadStr, LOAD_STR);
|
|
DispatchProgressEvent(this,
|
|
mErrorLoad ? errorStr : loadStr,
|
|
!mErrorLoad,
|
|
mLoadTransferred,
|
|
mErrorLoad ? 0 : mLoadTransferred);
|
|
if (mErrorLoad && mUpload && !mUploadComplete) {
|
|
DispatchProgressEvent(mUpload, errorStr, true,
|
|
mUploadTransferred, mUploadTotal);
|
|
}
|
|
|
|
if (mErrorLoad) {
|
|
// By nulling out channel here we make it so that Send() can test
|
|
// for that and throw. Also calling the various status
|
|
// methods/members will not throw.
|
|
// This matches what IE does.
|
|
mChannel = nullptr;
|
|
}
|
|
}
|
|
|
|
static nsresult
|
|
GetRequestBody(nsIDOMDocument* aDoc, nsIInputStream** aResult,
|
|
uint64_t* aContentLength, nsACString& aContentType,
|
|
nsACString& aCharset)
|
|
{
|
|
nsCOMPtr<nsIDocument> doc(do_QueryInterface(aDoc));
|
|
NS_ENSURE_STATE(doc);
|
|
aCharset.AssignLiteral("UTF-8");
|
|
|
|
nsresult rv;
|
|
nsCOMPtr<nsIStorageStream> storStream;
|
|
rv = NS_NewStorageStream(4096, UINT32_MAX, getter_AddRefs(storStream));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIOutputStream> output;
|
|
rv = storStream->GetOutputStream(0, getter_AddRefs(output));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (doc->IsHTMLDocument()) {
|
|
aContentType.AssignLiteral("text/html");
|
|
|
|
nsString serialized;
|
|
if (!nsContentUtils::SerializeNodeToMarkup(doc, true, serialized)) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
NS_ConvertUTF16toUTF8 utf8Serialized(serialized);
|
|
|
|
uint32_t written;
|
|
rv = output->Write(utf8Serialized.get(), utf8Serialized.Length(), &written);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
MOZ_ASSERT(written == utf8Serialized.Length());
|
|
} else {
|
|
aContentType.AssignLiteral("application/xml");
|
|
|
|
nsCOMPtr<nsIDOMSerializer> serializer =
|
|
do_CreateInstance(NS_XMLSERIALIZER_CONTRACTID, &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Make sure to use the encoding we'll send
|
|
rv = serializer->SerializeToStream(aDoc, output, aCharset);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
}
|
|
|
|
output->Close();
|
|
|
|
uint32_t length;
|
|
rv = storStream->GetLength(&length);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
*aContentLength = length;
|
|
|
|
return storStream->NewInputStream(0, aResult);
|
|
}
|
|
|
|
static nsresult
|
|
GetRequestBody(const nsAString& aString, nsIInputStream** aResult,
|
|
uint64_t* aContentLength, nsACString& aContentType,
|
|
nsACString& aCharset)
|
|
{
|
|
aContentType.AssignLiteral("text/plain");
|
|
aCharset.AssignLiteral("UTF-8");
|
|
|
|
nsCString converted = NS_ConvertUTF16toUTF8(aString);
|
|
*aContentLength = converted.Length();
|
|
return NS_NewCStringInputStream(aResult, converted);
|
|
}
|
|
|
|
static nsresult
|
|
GetRequestBody(nsIInputStream* aStream, nsIInputStream** aResult,
|
|
uint64_t* aContentLength, nsACString& aContentType,
|
|
nsACString& aCharset)
|
|
{
|
|
aContentType.AssignLiteral("text/plain");
|
|
aCharset.Truncate();
|
|
|
|
nsresult rv = aStream->Available(aContentLength);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
NS_ADDREF(*aResult = aStream);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
static nsresult
|
|
GetRequestBody(nsIXHRSendable* aSendable, nsIInputStream** aResult, uint64_t* aContentLength,
|
|
nsACString& aContentType, nsACString& aCharset)
|
|
{
|
|
return aSendable->GetSendInfo(aResult, aContentLength, aContentType, aCharset);
|
|
}
|
|
|
|
// Used for array buffers and array buffer views
|
|
static nsresult
|
|
GetRequestBody(const uint8_t* aData, uint32_t aDataLength,
|
|
nsIInputStream** aResult, uint64_t* aContentLength,
|
|
nsACString& aContentType, nsACString& aCharset)
|
|
{
|
|
aContentType.SetIsVoid(true);
|
|
aCharset.Truncate();
|
|
|
|
*aContentLength = aDataLength;
|
|
const char* data = reinterpret_cast<const char*>(aData);
|
|
|
|
nsCOMPtr<nsIInputStream> stream;
|
|
nsresult rv = NS_NewByteInputStream(getter_AddRefs(stream), data, aDataLength,
|
|
NS_ASSIGNMENT_COPY);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
stream.forget(aResult);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
static nsresult
|
|
GetRequestBody(nsIVariant* aBody, nsIInputStream** aResult, uint64_t* aContentLength,
|
|
nsACString& aContentType, nsACString& aCharset)
|
|
{
|
|
*aResult = nullptr;
|
|
|
|
uint16_t dataType;
|
|
nsresult rv = aBody->GetDataType(&dataType);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (dataType == nsIDataType::VTYPE_INTERFACE ||
|
|
dataType == nsIDataType::VTYPE_INTERFACE_IS) {
|
|
nsCOMPtr<nsISupports> supports;
|
|
nsID *iid;
|
|
rv = aBody->GetAsInterface(&iid, getter_AddRefs(supports));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
free(iid);
|
|
|
|
// document?
|
|
nsCOMPtr<nsIDOMDocument> doc = do_QueryInterface(supports);
|
|
if (doc) {
|
|
return GetRequestBody(doc, aResult, aContentLength, aContentType, aCharset);
|
|
}
|
|
|
|
// nsISupportsString?
|
|
nsCOMPtr<nsISupportsString> wstr = do_QueryInterface(supports);
|
|
if (wstr) {
|
|
nsAutoString string;
|
|
wstr->GetData(string);
|
|
|
|
return GetRequestBody(string, aResult, aContentLength, aContentType, aCharset);
|
|
}
|
|
|
|
// nsIInputStream?
|
|
nsCOMPtr<nsIInputStream> stream = do_QueryInterface(supports);
|
|
if (stream) {
|
|
return GetRequestBody(stream, aResult, aContentLength, aContentType, aCharset);
|
|
}
|
|
|
|
// nsIXHRSendable?
|
|
nsCOMPtr<nsIXHRSendable> sendable = do_QueryInterface(supports);
|
|
if (sendable) {
|
|
return GetRequestBody(sendable, aResult, aContentLength, aContentType, aCharset);
|
|
}
|
|
|
|
// ArrayBuffer?
|
|
AutoSafeJSContext cx;
|
|
JS::Rooted<JS::Value> realVal(cx);
|
|
|
|
nsresult rv = aBody->GetAsJSVal(&realVal);
|
|
if (NS_SUCCEEDED(rv) && !realVal.isPrimitive()) {
|
|
JS::Rooted<JSObject*> obj(cx, realVal.toObjectOrNull());
|
|
ArrayBuffer buf;
|
|
if (buf.Init(obj)) {
|
|
buf.ComputeLengthAndData();
|
|
return GetRequestBody(buf.Data(), buf.Length(), aResult,
|
|
aContentLength, aContentType, aCharset);
|
|
}
|
|
}
|
|
}
|
|
else if (dataType == nsIDataType::VTYPE_VOID ||
|
|
dataType == nsIDataType::VTYPE_EMPTY) {
|
|
// Makes us act as if !aBody, don't upload anything
|
|
aContentType.AssignLiteral("text/plain");
|
|
aCharset.AssignLiteral("UTF-8");
|
|
*aContentLength = 0;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
char16_t* data = nullptr;
|
|
uint32_t len = 0;
|
|
rv = aBody->GetAsWStringWithSize(&len, &data);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsString string;
|
|
string.Adopt(data, len);
|
|
|
|
return GetRequestBody(string, aResult, aContentLength, aContentType, aCharset);
|
|
}
|
|
|
|
/* static */
|
|
nsresult
|
|
nsXMLHttpRequest::GetRequestBody(nsIVariant* aVariant,
|
|
const Nullable<RequestBody>& aBody,
|
|
nsIInputStream** aResult,
|
|
uint64_t* aContentLength,
|
|
nsACString& aContentType, nsACString& aCharset)
|
|
{
|
|
if (aVariant) {
|
|
return ::GetRequestBody(aVariant, aResult, aContentLength, aContentType, aCharset);
|
|
}
|
|
|
|
const RequestBody& body = aBody.Value();
|
|
RequestBody::Value value = body.GetValue();
|
|
switch (body.GetType()) {
|
|
case nsXMLHttpRequest::RequestBody::ArrayBuffer:
|
|
{
|
|
const ArrayBuffer* buffer = value.mArrayBuffer;
|
|
buffer->ComputeLengthAndData();
|
|
return ::GetRequestBody(buffer->Data(), buffer->Length(), aResult,
|
|
aContentLength, aContentType, aCharset);
|
|
}
|
|
case nsXMLHttpRequest::RequestBody::ArrayBufferView:
|
|
{
|
|
const ArrayBufferView* view = value.mArrayBufferView;
|
|
view->ComputeLengthAndData();
|
|
return ::GetRequestBody(view->Data(), view->Length(), aResult,
|
|
aContentLength, aContentType, aCharset);
|
|
}
|
|
case nsXMLHttpRequest::RequestBody::Blob:
|
|
{
|
|
nsresult rv;
|
|
nsCOMPtr<nsIDOMBlob> blob = value.mBlob;
|
|
nsCOMPtr<nsIXHRSendable> sendable = do_QueryInterface(blob, &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return ::GetRequestBody(sendable, aResult, aContentLength, aContentType, aCharset);
|
|
}
|
|
case nsXMLHttpRequest::RequestBody::Document:
|
|
{
|
|
nsCOMPtr<nsIDOMDocument> document = do_QueryInterface(value.mDocument);
|
|
return ::GetRequestBody(document, aResult, aContentLength, aContentType, aCharset);
|
|
}
|
|
case nsXMLHttpRequest::RequestBody::DOMString:
|
|
{
|
|
return ::GetRequestBody(*value.mString, aResult, aContentLength,
|
|
aContentType, aCharset);
|
|
}
|
|
case nsXMLHttpRequest::RequestBody::FormData:
|
|
{
|
|
MOZ_ASSERT(value.mFormData);
|
|
return ::GetRequestBody(value.mFormData, aResult, aContentLength,
|
|
aContentType, aCharset);
|
|
}
|
|
case nsXMLHttpRequest::RequestBody::InputStream:
|
|
{
|
|
return ::GetRequestBody(value.mStream, aResult, aContentLength,
|
|
aContentType, aCharset);
|
|
}
|
|
default:
|
|
{
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
NS_NOTREACHED("Default cases exist for a reason");
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::Send(nsIVariant *aBody)
|
|
{
|
|
return Send(aBody, Nullable<RequestBody>());
|
|
}
|
|
|
|
nsresult
|
|
nsXMLHttpRequest::Send(nsIVariant* aVariant, const Nullable<RequestBody>& aBody)
|
|
{
|
|
NS_ENSURE_TRUE(mPrincipal, NS_ERROR_NOT_INITIALIZED);
|
|
|
|
PopulateNetworkInterfaceId();
|
|
|
|
nsresult rv = CheckInnerWindowCorrectness();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Return error if we're already processing a request
|
|
if (XML_HTTP_REQUEST_SENT & mState) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Make sure we've been opened
|
|
if (!mChannel || !(XML_HTTP_REQUEST_OPENED & mState)) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
|
|
// nsIRequest::LOAD_BACKGROUND prevents throbber from becoming active, which
|
|
// in turn keeps STOP button from becoming active. If the consumer passed in
|
|
// a progress event handler we must load with nsIRequest::LOAD_NORMAL or
|
|
// necko won't generate any progress notifications.
|
|
if (HasListenersFor(nsGkAtoms::onprogress) ||
|
|
(mUpload && mUpload->HasListenersFor(nsGkAtoms::onprogress))) {
|
|
nsLoadFlags loadFlags;
|
|
mChannel->GetLoadFlags(&loadFlags);
|
|
loadFlags &= ~nsIRequest::LOAD_BACKGROUND;
|
|
loadFlags |= nsIRequest::LOAD_NORMAL;
|
|
mChannel->SetLoadFlags(loadFlags);
|
|
}
|
|
|
|
// XXX We should probably send a warning to the JS console
|
|
// if there are no event listeners set and we are doing
|
|
// an asynchronous call.
|
|
|
|
// Ignore argument if method is GET, there is no point in trying to
|
|
// upload anything
|
|
nsAutoCString method;
|
|
nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(mChannel));
|
|
|
|
if (httpChannel) {
|
|
httpChannel->GetRequestMethod(method); // If GET, method name will be uppercase
|
|
|
|
if (!IsSystemXHR()) {
|
|
nsCOMPtr<nsPIDOMWindow> owner = GetOwner();
|
|
nsCOMPtr<nsIDocument> doc = owner ? owner->GetExtantDoc() : nullptr;
|
|
nsContentUtils::SetFetchReferrerURIWithPolicy(mPrincipal, doc,
|
|
httpChannel);
|
|
}
|
|
|
|
// Some extensions override the http protocol handler and provide their own
|
|
// implementation. The channels returned from that implementation doesn't
|
|
// seem to always implement the nsIUploadChannel2 interface, presumably
|
|
// because it's a new interface.
|
|
// Eventually we should remove this and simply require that http channels
|
|
// implement the new interface.
|
|
// See bug 529041
|
|
nsCOMPtr<nsIUploadChannel2> uploadChannel2 =
|
|
do_QueryInterface(httpChannel);
|
|
if (!uploadChannel2) {
|
|
nsCOMPtr<nsIConsoleService> consoleService =
|
|
do_GetService(NS_CONSOLESERVICE_CONTRACTID);
|
|
if (consoleService) {
|
|
consoleService->LogStringMessage(NS_LITERAL_STRING(
|
|
"Http channel implementation doesn't support nsIUploadChannel2. An extension has supplied a non-functional http protocol handler. This will break behavior and in future releases not work at all."
|
|
).get());
|
|
}
|
|
}
|
|
}
|
|
|
|
mUploadTransferred = 0;
|
|
mUploadTotal = 0;
|
|
// By default we don't have any upload, so mark upload complete.
|
|
mUploadComplete = true;
|
|
mErrorLoad = false;
|
|
mLoadLengthComputable = false;
|
|
mLoadTotal = 0;
|
|
if ((aVariant || !aBody.IsNull()) && httpChannel &&
|
|
!method.LowerCaseEqualsLiteral("get") &&
|
|
!method.LowerCaseEqualsLiteral("head")) {
|
|
|
|
nsAutoCString charset;
|
|
nsAutoCString defaultContentType;
|
|
nsCOMPtr<nsIInputStream> postDataStream;
|
|
|
|
uint64_t size_u64;
|
|
rv = GetRequestBody(aVariant, aBody, getter_AddRefs(postDataStream),
|
|
&size_u64, defaultContentType, charset);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// make sure it fits within js MAX_SAFE_INTEGER
|
|
mUploadTotal =
|
|
net::InScriptableRange(size_u64) ? static_cast<int64_t>(size_u64) : -1;
|
|
|
|
if (postDataStream) {
|
|
// If no content type header was set by the client, we set it to
|
|
// application/xml.
|
|
nsAutoCString contentType;
|
|
if (NS_FAILED(httpChannel->
|
|
GetRequestHeader(NS_LITERAL_CSTRING("Content-Type"),
|
|
contentType)) ||
|
|
contentType.IsEmpty()) {
|
|
contentType = defaultContentType;
|
|
|
|
if (!charset.IsEmpty()) {
|
|
// If we are providing the default content type, then we also need to
|
|
// provide a charset declaration.
|
|
contentType.Append(NS_LITERAL_CSTRING(";charset="));
|
|
contentType.Append(charset);
|
|
}
|
|
}
|
|
|
|
// We don't want to set a charset for streams.
|
|
if (!charset.IsEmpty()) {
|
|
nsAutoCString specifiedCharset;
|
|
bool haveCharset;
|
|
int32_t charsetStart, charsetEnd;
|
|
rv = NS_ExtractCharsetFromContentType(contentType, specifiedCharset,
|
|
&haveCharset, &charsetStart,
|
|
&charsetEnd);
|
|
while (NS_SUCCEEDED(rv) && haveCharset) {
|
|
// special case: the extracted charset is quoted with single quotes
|
|
// -- for the purpose of preserving what was set we want to handle
|
|
// them as delimiters (although they aren't really)
|
|
if (specifiedCharset.Length() >= 2 &&
|
|
specifiedCharset.First() == '\'' &&
|
|
specifiedCharset.Last() == '\'') {
|
|
specifiedCharset = Substring(specifiedCharset, 1,
|
|
specifiedCharset.Length() - 2);
|
|
}
|
|
|
|
// If the content-type the page set already has a charset parameter,
|
|
// and it's the same charset, up to case, as |charset|, just send the
|
|
// page-set content-type header. Apparently at least
|
|
// google-web-toolkit is broken and relies on the exact case of its
|
|
// charset parameter, which makes things break if we use |charset|
|
|
// (which is always a fully resolved charset per our charset alias
|
|
// table, hence might be differently cased).
|
|
if (!specifiedCharset.Equals(charset,
|
|
nsCaseInsensitiveCStringComparator())) {
|
|
// Find the start of the actual charset declaration, skipping the
|
|
// "; charset=" to avoid modifying whitespace.
|
|
int32_t charIdx =
|
|
Substring(contentType, charsetStart,
|
|
charsetEnd - charsetStart).FindChar('=') + 1;
|
|
MOZ_ASSERT(charIdx != -1);
|
|
|
|
contentType.Replace(charsetStart + charIdx,
|
|
charsetEnd - charsetStart - charIdx,
|
|
charset);
|
|
}
|
|
|
|
// Look for another charset declaration in the string, limiting the
|
|
// search to only look for charsets before the current charset, to
|
|
// prevent finding the same charset twice.
|
|
nsDependentCSubstring interestingSection =
|
|
Substring(contentType, 0, charsetStart);
|
|
rv = NS_ExtractCharsetFromContentType(interestingSection,
|
|
specifiedCharset, &haveCharset,
|
|
&charsetStart, &charsetEnd);
|
|
}
|
|
}
|
|
|
|
// If necessary, wrap the stream in a buffered stream so as to guarantee
|
|
// support for our upload when calling ExplicitSetUploadStream.
|
|
if (!NS_InputStreamIsBuffered(postDataStream)) {
|
|
nsCOMPtr<nsIInputStream> bufferedStream;
|
|
rv = NS_NewBufferedInputStream(getter_AddRefs(bufferedStream),
|
|
postDataStream,
|
|
4096);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
postDataStream = bufferedStream;
|
|
}
|
|
|
|
mUploadComplete = false;
|
|
|
|
// We want to use a newer version of the upload channel that won't
|
|
// ignore the necessary headers for an empty Content-Type.
|
|
nsCOMPtr<nsIUploadChannel2> uploadChannel2(do_QueryInterface(httpChannel));
|
|
// This assertion will fire if buggy extensions are installed
|
|
NS_ASSERTION(uploadChannel2, "http must support nsIUploadChannel2");
|
|
if (uploadChannel2) {
|
|
uploadChannel2->ExplicitSetUploadStream(postDataStream, contentType,
|
|
mUploadTotal, method, false);
|
|
}
|
|
else {
|
|
// http channel doesn't support the new nsIUploadChannel2. Emulate
|
|
// as best we can using nsIUploadChannel
|
|
if (contentType.IsEmpty()) {
|
|
contentType.AssignLiteral("application/octet-stream");
|
|
}
|
|
nsCOMPtr<nsIUploadChannel> uploadChannel =
|
|
do_QueryInterface(httpChannel);
|
|
uploadChannel->SetUploadStream(postDataStream, contentType, mUploadTotal);
|
|
// Reset the method to its original value
|
|
httpChannel->SetRequestMethod(method);
|
|
}
|
|
}
|
|
}
|
|
|
|
ResetResponse();
|
|
|
|
if (!IsSystemXHR() && !mIsAnon &&
|
|
(mState & XML_HTTP_REQUEST_AC_WITH_CREDENTIALS)) {
|
|
// This is quite sad. We have to create the channel in .open(), since the
|
|
// chrome-only xhr.channel API depends on that. However .withCredentials
|
|
// can be modified after, so we don't know what to set the
|
|
// SEC_COOKIES_INCLUDE flag to when the channel is
|
|
// created. So set it here using a hacky internal API.
|
|
|
|
// Not doing this for system XHR uses since those don't use CORS.
|
|
nsCOMPtr<nsILoadInfo> loadInfo = mChannel->GetLoadInfo();
|
|
static_cast<LoadInfo*>(loadInfo.get())->SetIncludeCookiesSecFlag();
|
|
}
|
|
|
|
// Blocking gets are common enough out of XHR that we should mark
|
|
// the channel slow by default for pipeline purposes
|
|
AddLoadFlags(mChannel, nsIRequest::INHIBIT_PIPELINE);
|
|
|
|
nsCOMPtr<nsIClassOfService> cos(do_QueryInterface(mChannel));
|
|
if (cos) {
|
|
// we never let XHR be blocked by head CSS/JS loads to avoid
|
|
// potential deadlock where server generation of CSS/JS requires
|
|
// an XHR signal.
|
|
cos->AddClassFlags(nsIClassOfService::Unblocked);
|
|
}
|
|
|
|
nsCOMPtr<nsIHttpChannelInternal>
|
|
internalHttpChannel(do_QueryInterface(mChannel));
|
|
if (internalHttpChannel) {
|
|
// Disable Necko-internal response timeouts.
|
|
internalHttpChannel->SetResponseTimeoutEnabled(false);
|
|
}
|
|
|
|
if (!mIsAnon) {
|
|
AddLoadFlags(mChannel, nsIChannel::LOAD_EXPLICIT_CREDENTIALS);
|
|
}
|
|
|
|
// Bypass the network cache in cases where it makes no sense:
|
|
// POST responses are always unique, and we provide no API that would
|
|
// allow our consumers to specify a "cache key" to access old POST
|
|
// responses, so they are not worth caching.
|
|
if (method.EqualsLiteral("POST")) {
|
|
AddLoadFlags(mChannel,
|
|
nsICachingChannel::LOAD_BYPASS_LOCAL_CACHE |
|
|
nsIRequest::INHIBIT_CACHING);
|
|
} else {
|
|
// When we are sync loading, we need to bypass the local cache when it would
|
|
// otherwise block us waiting for exclusive access to the cache. If we don't
|
|
// do this, then we could dead lock in some cases (see bug 309424).
|
|
//
|
|
// Also don't block on the cache entry on async if it is busy - favoring parallelism
|
|
// over cache hit rate for xhr. This does not disable the cache everywhere -
|
|
// only in cases where more than one channel for the same URI is accessed
|
|
// simultanously.
|
|
|
|
AddLoadFlags(mChannel,
|
|
nsICachingChannel::LOAD_BYPASS_LOCAL_CACHE_IF_BUSY);
|
|
}
|
|
|
|
// Since we expect XML data, set the type hint accordingly
|
|
// if the channel doesn't know any content type.
|
|
// This means that we always try to parse local files as XML
|
|
// ignoring return value, as this is not critical
|
|
nsAutoCString contentType;
|
|
if (NS_FAILED(mChannel->GetContentType(contentType)) ||
|
|
contentType.IsEmpty() ||
|
|
contentType.Equals(UNKNOWN_CONTENT_TYPE)) {
|
|
mChannel->SetContentType(NS_LITERAL_CSTRING("application/xml"));
|
|
}
|
|
|
|
// We're about to send the request. Start our timeout.
|
|
mRequestSentTime = PR_Now();
|
|
StartTimeoutTimer();
|
|
|
|
// Check if we should enabled cross-origin upload listeners.
|
|
if (mUpload && mUpload->HasListeners()) {
|
|
mState |= XML_HTTP_REQUEST_HAD_UPLOAD_LISTENERS_ON_SEND;
|
|
}
|
|
|
|
// Set up the preflight if needed
|
|
if (!IsSystemXHR()) {
|
|
nsCOMPtr<nsILoadInfo> loadInfo = mChannel->GetLoadInfo();
|
|
loadInfo->SetCorsPreflightInfo(mCORSUnsafeHeaders,
|
|
mState & XML_HTTP_REQUEST_HAD_UPLOAD_LISTENERS_ON_SEND);
|
|
}
|
|
|
|
mIsMappedArrayBuffer = false;
|
|
if (mResponseType == XML_HTTP_RESPONSE_TYPE_ARRAYBUFFER &&
|
|
Preferences::GetBool("dom.mapped_arraybuffer.enabled", false)) {
|
|
nsCOMPtr<nsIURI> uri;
|
|
nsAutoCString scheme;
|
|
|
|
rv = mChannel->GetURI(getter_AddRefs(uri));
|
|
if (NS_SUCCEEDED(rv)) {
|
|
uri->GetScheme(scheme);
|
|
if (scheme.LowerCaseEqualsLiteral("app") ||
|
|
scheme.LowerCaseEqualsLiteral("jar")) {
|
|
mIsMappedArrayBuffer = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Hook us up to listen to redirects and the like
|
|
// Only do this very late since this creates a cycle between
|
|
// the channel and us. This cycle has to be manually broken if anything
|
|
// below fails.
|
|
mChannel->GetNotificationCallbacks(getter_AddRefs(mNotificationCallbacks));
|
|
mChannel->SetNotificationCallbacks(this);
|
|
|
|
// Start reading from the channel
|
|
// Because of bug 682305, we can't let listener be the XHR object itself
|
|
// because JS wouldn't be able to use it. So create a listener around 'this'.
|
|
// Make sure to hold a strong reference so that we don't leak the wrapper.
|
|
nsCOMPtr<nsIStreamListener> listener = new nsStreamListenerWrapper(this);
|
|
rv = mChannel->AsyncOpen2(listener);
|
|
listener = nullptr;
|
|
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
// Drop our ref to the channel to avoid cycles. Also drop channel's
|
|
// ref to us to be extra safe.
|
|
mChannel->SetNotificationCallbacks(mNotificationCallbacks);
|
|
mChannel = nullptr;
|
|
|
|
return rv;
|
|
}
|
|
|
|
mWaitingForOnStopRequest = true;
|
|
|
|
// If we're synchronous, spin an event loop here and wait
|
|
if (!(mState & XML_HTTP_REQUEST_ASYNC)) {
|
|
mState |= XML_HTTP_REQUEST_SYNCLOOPING;
|
|
|
|
nsCOMPtr<nsIDocument> suspendedDoc;
|
|
nsCOMPtr<nsIRunnable> resumeTimeoutRunnable;
|
|
if (GetOwner()) {
|
|
if (nsCOMPtr<nsPIDOMWindow> topWindow = GetOwner()->GetOuterWindow()->GetTop()) {
|
|
if (topWindow &&
|
|
(topWindow = topWindow->GetCurrentInnerWindow())) {
|
|
suspendedDoc = topWindow->GetExtantDoc();
|
|
if (suspendedDoc) {
|
|
suspendedDoc->SuppressEventHandling(nsIDocument::eEvents);
|
|
}
|
|
topWindow->SuspendTimeouts(1, false);
|
|
resumeTimeoutRunnable = new nsResumeTimeoutsEvent(topWindow);
|
|
}
|
|
}
|
|
}
|
|
|
|
ChangeState(XML_HTTP_REQUEST_SENT);
|
|
|
|
{
|
|
nsAutoSyncOperation sync(suspendedDoc);
|
|
// Note, calling ChangeState may have cleared
|
|
// XML_HTTP_REQUEST_SYNCLOOPING flag.
|
|
nsIThread *thread = NS_GetCurrentThread();
|
|
while (mState & XML_HTTP_REQUEST_SYNCLOOPING) {
|
|
if (!NS_ProcessNextEvent(thread)) {
|
|
rv = NS_ERROR_UNEXPECTED;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (suspendedDoc) {
|
|
suspendedDoc->UnsuppressEventHandlingAndFireEvents(nsIDocument::eEvents,
|
|
true);
|
|
}
|
|
|
|
if (resumeTimeoutRunnable) {
|
|
NS_DispatchToCurrentThread(resumeTimeoutRunnable);
|
|
}
|
|
} else {
|
|
// Now that we've successfully opened the channel, we can change state. Note
|
|
// that this needs to come after the AsyncOpen() and rv check, because this
|
|
// can run script that would try to restart this request, and that could end
|
|
// up doing our AsyncOpen on a null channel if the reentered AsyncOpen fails.
|
|
ChangeState(XML_HTTP_REQUEST_SENT);
|
|
if (mUpload && mUpload->HasListenersFor(nsGkAtoms::onprogress)) {
|
|
StartProgressEventTimer();
|
|
}
|
|
DispatchProgressEvent(this, NS_LITERAL_STRING(LOADSTART_STR), false,
|
|
0, 0);
|
|
if (mUpload && !mUploadComplete) {
|
|
DispatchProgressEvent(mUpload, NS_LITERAL_STRING(LOADSTART_STR), true,
|
|
0, mUploadTotal);
|
|
}
|
|
}
|
|
|
|
if (!mChannel) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
// http://dvcs.w3.org/hg/xhr/raw-file/tip/Overview.html#dom-xmlhttprequest-setrequestheader
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::SetRequestHeader(const nsACString& header,
|
|
const nsACString& value)
|
|
{
|
|
// Step 1 and 2
|
|
if (!(mState & XML_HTTP_REQUEST_OPENED)) {
|
|
return NS_ERROR_DOM_INVALID_STATE_ERR;
|
|
}
|
|
NS_ASSERTION(mChannel, "mChannel must be valid if we're OPENED.");
|
|
|
|
// Step 3
|
|
// Make sure we don't store an invalid header name in mCORSUnsafeHeaders
|
|
if (!NS_IsValidHTTPToken(header)) {
|
|
return NS_ERROR_DOM_SYNTAX_ERR;
|
|
}
|
|
|
|
if (!mChannel) // open() initializes mChannel, and open()
|
|
return NS_ERROR_FAILURE; // must be called before first setRequestHeader()
|
|
|
|
nsCOMPtr<nsIHttpChannel> httpChannel = do_QueryInterface(mChannel);
|
|
if (!httpChannel) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// We will merge XHR headers, per the spec (secion 4.6.2) unless:
|
|
// 1 - The caller is privileged and setting an invalid header,
|
|
// or
|
|
// 2 - we have not yet explicitly set that header; this allows web
|
|
// content to override default headers the first time they set them.
|
|
bool mergeHeaders = true;
|
|
|
|
if (!IsSystemXHR()) {
|
|
// Step 5: Check for dangerous headers.
|
|
// Prevent modification to certain HTTP headers (see bug 302263), unless
|
|
// the executing script is privileged.
|
|
if (nsContentUtils::IsForbiddenRequestHeader(header)) {
|
|
NS_WARNING("refusing to set request header");
|
|
return NS_OK;
|
|
}
|
|
|
|
// Check for dangerous cross-site headers
|
|
bool safeHeader = IsSystemXHR();
|
|
if (!safeHeader) {
|
|
// Content-Type isn't always safe, but we'll deal with it in Send()
|
|
const char *kCrossOriginSafeHeaders[] = {
|
|
"accept", "accept-language", "content-language", "content-type",
|
|
"last-event-id"
|
|
};
|
|
for (uint32_t i = 0; i < ArrayLength(kCrossOriginSafeHeaders); ++i) {
|
|
if (header.LowerCaseEqualsASCII(kCrossOriginSafeHeaders[i])) {
|
|
safeHeader = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!safeHeader) {
|
|
if (!mCORSUnsafeHeaders.Contains(header, nsCaseInsensitiveCStringArrayComparator())) {
|
|
mCORSUnsafeHeaders.AppendElement(header);
|
|
}
|
|
}
|
|
} else {
|
|
// Case 1 above
|
|
if (nsContentUtils::IsForbiddenSystemRequestHeader(header)) {
|
|
mergeHeaders = false;
|
|
}
|
|
}
|
|
|
|
if (!mAlreadySetHeaders.Contains(header)) {
|
|
// Case 2 above
|
|
mergeHeaders = false;
|
|
}
|
|
|
|
nsresult rv;
|
|
if (value.IsEmpty()) {
|
|
rv = httpChannel->SetEmptyRequestHeader(header);
|
|
} else {
|
|
// Merge headers depending on what we decided above.
|
|
rv = httpChannel->SetRequestHeader(header, value, mergeHeaders);
|
|
}
|
|
if (rv == NS_ERROR_INVALID_ARG) {
|
|
return NS_ERROR_DOM_SYNTAX_ERR;
|
|
}
|
|
if (NS_SUCCEEDED(rv)) {
|
|
// Remember that we've set this header, so subsequent set operations will merge values.
|
|
mAlreadySetHeaders.PutEntry(nsCString(header));
|
|
|
|
// We'll want to duplicate this header for any replacement channels (eg. on redirect)
|
|
RequestHeader reqHeader = {
|
|
nsCString(header), nsCString(value)
|
|
};
|
|
mModifiedRequestHeaders.AppendElement(reqHeader);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::GetTimeout(uint32_t *aTimeout)
|
|
{
|
|
*aTimeout = Timeout();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::SetTimeout(uint32_t aTimeout)
|
|
{
|
|
ErrorResult rv;
|
|
SetTimeout(aTimeout, rv);
|
|
return rv.StealNSResult();
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::SetTimeout(uint32_t aTimeout, ErrorResult& aRv)
|
|
{
|
|
if (!(mState & (XML_HTTP_REQUEST_ASYNC | XML_HTTP_REQUEST_UNSENT)) &&
|
|
HasOrHasHadOwner()) {
|
|
/* Timeout is not supported for synchronous requests with an owning window,
|
|
per XHR2 spec. */
|
|
LogMessage("TimeoutSyncXHRWarning", GetOwner());
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR);
|
|
return;
|
|
}
|
|
|
|
mTimeoutMilliseconds = aTimeout;
|
|
if (mRequestSentTime) {
|
|
StartTimeoutTimer();
|
|
}
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::StartTimeoutTimer()
|
|
{
|
|
MOZ_ASSERT(mRequestSentTime,
|
|
"StartTimeoutTimer mustn't be called before the request was sent!");
|
|
if (mState & XML_HTTP_REQUEST_DONE) {
|
|
// do nothing!
|
|
return;
|
|
}
|
|
|
|
if (mTimeoutTimer) {
|
|
mTimeoutTimer->Cancel();
|
|
}
|
|
|
|
if (!mTimeoutMilliseconds) {
|
|
return;
|
|
}
|
|
|
|
if (!mTimeoutTimer) {
|
|
mTimeoutTimer = do_CreateInstance(NS_TIMER_CONTRACTID);
|
|
}
|
|
uint32_t elapsed =
|
|
(uint32_t)((PR_Now() - mRequestSentTime) / PR_USEC_PER_MSEC);
|
|
mTimeoutTimer->InitWithCallback(
|
|
this,
|
|
mTimeoutMilliseconds > elapsed ? mTimeoutMilliseconds - elapsed : 0,
|
|
nsITimer::TYPE_ONE_SHOT
|
|
);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::GetReadyState(uint16_t *aState)
|
|
{
|
|
*aState = ReadyState();
|
|
return NS_OK;
|
|
}
|
|
|
|
uint16_t
|
|
nsXMLHttpRequest::ReadyState()
|
|
{
|
|
// Translate some of our internal states for external consumers
|
|
if (mState & XML_HTTP_REQUEST_UNSENT) {
|
|
return UNSENT;
|
|
}
|
|
if (mState & (XML_HTTP_REQUEST_OPENED | XML_HTTP_REQUEST_SENT)) {
|
|
return OPENED;
|
|
}
|
|
if (mState & XML_HTTP_REQUEST_HEADERS_RECEIVED) {
|
|
return HEADERS_RECEIVED;
|
|
}
|
|
if (mState & XML_HTTP_REQUEST_LOADING) {
|
|
return LOADING;
|
|
}
|
|
MOZ_ASSERT(mState & XML_HTTP_REQUEST_DONE);
|
|
return DONE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::SlowOverrideMimeType(const nsAString& aMimeType)
|
|
{
|
|
OverrideMimeType(aMimeType);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::GetMozBackgroundRequest(bool *_retval)
|
|
{
|
|
*_retval = MozBackgroundRequest();
|
|
return NS_OK;
|
|
}
|
|
|
|
bool
|
|
nsXMLHttpRequest::MozBackgroundRequest()
|
|
{
|
|
return !!(mState & XML_HTTP_REQUEST_BACKGROUND);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::SetMozBackgroundRequest(bool aMozBackgroundRequest)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
SetMozBackgroundRequest(aMozBackgroundRequest, rv);
|
|
return rv;
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::SetMozBackgroundRequest(bool aMozBackgroundRequest, nsresult& aRv)
|
|
{
|
|
if (!IsSystemXHR()) {
|
|
aRv = NS_ERROR_DOM_SECURITY_ERR;
|
|
return;
|
|
}
|
|
|
|
if (!(mState & XML_HTTP_REQUEST_UNSENT)) {
|
|
// Can't change this while we're in the middle of something.
|
|
aRv = NS_ERROR_IN_PROGRESS;
|
|
return;
|
|
}
|
|
|
|
if (aMozBackgroundRequest) {
|
|
mState |= XML_HTTP_REQUEST_BACKGROUND;
|
|
} else {
|
|
mState &= ~XML_HTTP_REQUEST_BACKGROUND;
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::GetWithCredentials(bool *_retval)
|
|
{
|
|
*_retval = WithCredentials();
|
|
return NS_OK;
|
|
}
|
|
|
|
bool
|
|
nsXMLHttpRequest::WithCredentials()
|
|
{
|
|
return !!(mState & XML_HTTP_REQUEST_AC_WITH_CREDENTIALS);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::SetWithCredentials(bool aWithCredentials)
|
|
{
|
|
ErrorResult rv;
|
|
SetWithCredentials(aWithCredentials, rv);
|
|
return rv.StealNSResult();
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::SetWithCredentials(bool aWithCredentials, ErrorResult& aRv)
|
|
{
|
|
// Return error if we're already processing a request. Note that we can't use
|
|
// ReadyState() here, because it can't differentiate between "opened" and
|
|
// "sent", so we use mState directly.
|
|
if ((!(mState & XML_HTTP_REQUEST_UNSENT) &&
|
|
!(mState & XML_HTTP_REQUEST_OPENED)) ||
|
|
mIsAnon) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return;
|
|
}
|
|
|
|
if (aWithCredentials) {
|
|
mState |= XML_HTTP_REQUEST_AC_WITH_CREDENTIALS;
|
|
} else {
|
|
mState &= ~XML_HTTP_REQUEST_AC_WITH_CREDENTIALS;
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
nsXMLHttpRequest::ChangeState(uint32_t aState, bool aBroadcast)
|
|
{
|
|
// If we are setting one of the mutually exclusive states,
|
|
// unset those state bits first.
|
|
if (aState & XML_HTTP_REQUEST_LOADSTATES) {
|
|
mState &= ~XML_HTTP_REQUEST_LOADSTATES;
|
|
}
|
|
mState |= aState;
|
|
nsresult rv = NS_OK;
|
|
|
|
if (mProgressNotifier &&
|
|
!(aState & (XML_HTTP_REQUEST_HEADERS_RECEIVED | XML_HTTP_REQUEST_LOADING))) {
|
|
mProgressTimerIsActive = false;
|
|
mProgressNotifier->Cancel();
|
|
}
|
|
|
|
if ((aState & XML_HTTP_REQUEST_LOADSTATES) && // Broadcast load states only
|
|
aState != XML_HTTP_REQUEST_SENT && // And not internal ones
|
|
aBroadcast &&
|
|
(mState & XML_HTTP_REQUEST_ASYNC ||
|
|
aState & XML_HTTP_REQUEST_OPENED ||
|
|
aState & XML_HTTP_REQUEST_DONE)) {
|
|
nsCOMPtr<nsIDOMEvent> event;
|
|
rv = CreateReadystatechangeEvent(getter_AddRefs(event));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
DispatchDOMEvent(nullptr, event, nullptr, nullptr);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////
|
|
// nsIChannelEventSink methods:
|
|
//
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::AsyncOnChannelRedirect(nsIChannel *aOldChannel,
|
|
nsIChannel *aNewChannel,
|
|
uint32_t aFlags,
|
|
nsIAsyncVerifyRedirectCallback *callback)
|
|
{
|
|
NS_PRECONDITION(aNewChannel, "Redirect without a channel?");
|
|
|
|
// Prepare to receive callback
|
|
mRedirectCallback = callback;
|
|
mNewRedirectChannel = aNewChannel;
|
|
|
|
if (mChannelEventSink) {
|
|
nsCOMPtr<nsIAsyncVerifyRedirectCallback> fwd =
|
|
EnsureXPCOMifier();
|
|
|
|
nsresult rv = mChannelEventSink->AsyncOnChannelRedirect(aOldChannel,
|
|
aNewChannel,
|
|
aFlags, fwd);
|
|
if (NS_FAILED(rv)) {
|
|
mRedirectCallback = nullptr;
|
|
mNewRedirectChannel = nullptr;
|
|
}
|
|
return rv;
|
|
}
|
|
OnRedirectVerifyCallback(NS_OK);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsXMLHttpRequest::OnRedirectVerifyCallback(nsresult result)
|
|
{
|
|
NS_ASSERTION(mRedirectCallback, "mRedirectCallback not set in callback");
|
|
NS_ASSERTION(mNewRedirectChannel, "mNewRedirectChannel not set in callback");
|
|
|
|
if (NS_SUCCEEDED(result)) {
|
|
mChannel = mNewRedirectChannel;
|
|
|
|
nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(mChannel));
|
|
if (httpChannel) {
|
|
// Ensure all original headers are duplicated for the new channel (bug #553888)
|
|
for (RequestHeader& requestHeader : mModifiedRequestHeaders) {
|
|
if (requestHeader.value.IsEmpty()) {
|
|
httpChannel->SetEmptyRequestHeader(requestHeader.header);
|
|
} else {
|
|
httpChannel->SetRequestHeader(requestHeader.header,
|
|
requestHeader.value,
|
|
false);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
mErrorLoad = true;
|
|
}
|
|
|
|
mNewRedirectChannel = nullptr;
|
|
|
|
mRedirectCallback->OnRedirectVerifyCallback(result);
|
|
mRedirectCallback = nullptr;
|
|
|
|
return result;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////
|
|
// nsIProgressEventSink methods:
|
|
//
|
|
|
|
void
|
|
nsXMLHttpRequest::MaybeDispatchProgressEvents(bool aFinalProgress)
|
|
{
|
|
if (aFinalProgress && mProgressTimerIsActive) {
|
|
mProgressTimerIsActive = false;
|
|
mProgressNotifier->Cancel();
|
|
}
|
|
|
|
if (mProgressTimerIsActive ||
|
|
!mProgressSinceLastProgressEvent ||
|
|
mErrorLoad ||
|
|
!(mState & XML_HTTP_REQUEST_ASYNC)) {
|
|
return;
|
|
}
|
|
|
|
if (!aFinalProgress) {
|
|
StartProgressEventTimer();
|
|
}
|
|
|
|
// We're uploading if our state is XML_HTTP_REQUEST_OPENED or
|
|
// XML_HTTP_REQUEST_SENT
|
|
if ((XML_HTTP_REQUEST_OPENED | XML_HTTP_REQUEST_SENT) & mState) {
|
|
if (mUpload && !mUploadComplete) {
|
|
DispatchProgressEvent(mUpload, NS_LITERAL_STRING(PROGRESS_STR),
|
|
mUploadLengthComputable, mUploadTransferred,
|
|
mUploadTotal);
|
|
}
|
|
} else {
|
|
if (aFinalProgress) {
|
|
mLoadTotal = mLoadTransferred;
|
|
}
|
|
mInLoadProgressEvent = true;
|
|
DispatchProgressEvent(this, NS_LITERAL_STRING(PROGRESS_STR),
|
|
mLoadLengthComputable, mLoadTransferred,
|
|
mLoadTotal);
|
|
mInLoadProgressEvent = false;
|
|
if (mResponseType == XML_HTTP_RESPONSE_TYPE_CHUNKED_TEXT ||
|
|
mResponseType == XML_HTTP_RESPONSE_TYPE_CHUNKED_ARRAYBUFFER) {
|
|
mResponseBody.Truncate();
|
|
mResponseText.Truncate();
|
|
mResultArrayBuffer = nullptr;
|
|
mArrayBufferBuilder.reset();
|
|
}
|
|
}
|
|
|
|
mProgressSinceLastProgressEvent = false;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::OnProgress(nsIRequest *aRequest, nsISupports *aContext, int64_t aProgress, int64_t aProgressMax)
|
|
{
|
|
// We're uploading if our state is XML_HTTP_REQUEST_OPENED or
|
|
// XML_HTTP_REQUEST_SENT
|
|
bool upload = !!((XML_HTTP_REQUEST_OPENED | XML_HTTP_REQUEST_SENT) & mState);
|
|
// When uploading, OnProgress reports also headers in aProgress and aProgressMax.
|
|
// So, try to remove the headers, if possible.
|
|
bool lengthComputable = (aProgressMax != -1);
|
|
if (upload) {
|
|
int64_t loaded = aProgress;
|
|
if (lengthComputable) {
|
|
int64_t headerSize = aProgressMax - mUploadTotal;
|
|
loaded -= headerSize;
|
|
}
|
|
mUploadLengthComputable = lengthComputable;
|
|
mUploadTransferred = loaded;
|
|
mProgressSinceLastProgressEvent = true;
|
|
|
|
MaybeDispatchProgressEvents((mUploadTransferred == mUploadTotal));
|
|
} else {
|
|
mLoadLengthComputable = lengthComputable;
|
|
mLoadTotal = lengthComputable ? aProgressMax : 0;
|
|
mLoadTransferred = aProgress;
|
|
// Don't dispatch progress events here. OnDataAvailable will take care
|
|
// of that.
|
|
}
|
|
|
|
if (mProgressEventSink) {
|
|
mProgressEventSink->OnProgress(aRequest, aContext, aProgress,
|
|
aProgressMax);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::OnStatus(nsIRequest *aRequest, nsISupports *aContext, nsresult aStatus, const char16_t *aStatusArg)
|
|
{
|
|
if (mProgressEventSink) {
|
|
mProgressEventSink->OnStatus(aRequest, aContext, aStatus, aStatusArg);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
bool
|
|
nsXMLHttpRequest::AllowUploadProgress()
|
|
{
|
|
return !IsCrossSiteCORSRequest() ||
|
|
(mState & XML_HTTP_REQUEST_HAD_UPLOAD_LISTENERS_ON_SEND);
|
|
}
|
|
|
|
/////////////////////////////////////////////////////
|
|
// nsIInterfaceRequestor methods:
|
|
//
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::GetInterface(const nsIID & aIID, void **aResult)
|
|
{
|
|
nsresult rv;
|
|
|
|
// Make sure to return ourselves for the channel event sink interface and
|
|
// progress event sink interface, no matter what. We can forward these to
|
|
// mNotificationCallbacks if it wants to get notifications for them. But we
|
|
// need to see these notifications for proper functioning.
|
|
if (aIID.Equals(NS_GET_IID(nsIChannelEventSink))) {
|
|
mChannelEventSink = do_GetInterface(mNotificationCallbacks);
|
|
*aResult = static_cast<nsIChannelEventSink*>(EnsureXPCOMifier().take());
|
|
return NS_OK;
|
|
} else if (aIID.Equals(NS_GET_IID(nsIProgressEventSink))) {
|
|
mProgressEventSink = do_GetInterface(mNotificationCallbacks);
|
|
*aResult = static_cast<nsIProgressEventSink*>(EnsureXPCOMifier().take());
|
|
return NS_OK;
|
|
}
|
|
|
|
// Now give mNotificationCallbacks (if non-null) a chance to return the
|
|
// desired interface.
|
|
if (mNotificationCallbacks) {
|
|
rv = mNotificationCallbacks->GetInterface(aIID, aResult);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
NS_ASSERTION(*aResult, "Lying nsIInterfaceRequestor implementation!");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
if (mState & XML_HTTP_REQUEST_BACKGROUND) {
|
|
nsCOMPtr<nsIInterfaceRequestor> badCertHandler(do_CreateInstance(NS_BADCERTHANDLER_CONTRACTID, &rv));
|
|
|
|
// Ignore failure to get component, we may not have all its dependencies
|
|
// available
|
|
if (NS_SUCCEEDED(rv)) {
|
|
rv = badCertHandler->GetInterface(aIID, aResult);
|
|
if (NS_SUCCEEDED(rv))
|
|
return rv;
|
|
}
|
|
}
|
|
else if (aIID.Equals(NS_GET_IID(nsIAuthPrompt)) ||
|
|
aIID.Equals(NS_GET_IID(nsIAuthPrompt2))) {
|
|
|
|
nsCOMPtr<nsIURI> uri;
|
|
rv = mChannel->GetURI(getter_AddRefs(uri));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Verify that it's ok to prompt for credentials here, per spec
|
|
// http://xhr.spec.whatwg.org/#the-send%28%29-method
|
|
bool showPrompt = true;
|
|
|
|
// If authentication fails, XMLHttpRequest origin and
|
|
// the request URL are same origin, ...
|
|
/* Disabled - bug: 799540
|
|
if (IsCrossSiteCORSRequest()) {
|
|
showPrompt = false;
|
|
}
|
|
*/
|
|
|
|
// ... Authorization is not in the list of author request headers, ...
|
|
if (showPrompt) {
|
|
for (uint32_t i = 0, len = mModifiedRequestHeaders.Length(); i < len; ++i) {
|
|
if (mModifiedRequestHeaders[i].header.
|
|
LowerCaseEqualsLiteral("authorization")) {
|
|
showPrompt = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// ... request username is null, and request password is null,
|
|
if (showPrompt) {
|
|
|
|
nsCString username;
|
|
rv = uri->GetUsername(username);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCString password;
|
|
rv = uri->GetPassword(password);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (!username.IsEmpty() || !password.IsEmpty()) {
|
|
showPrompt = false;
|
|
}
|
|
}
|
|
|
|
// ... user agents should prompt the end user for their username and password.
|
|
if (!showPrompt) {
|
|
RefPtr<XMLHttpRequestAuthPrompt> prompt = new XMLHttpRequestAuthPrompt();
|
|
if (!prompt)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
return prompt->QueryInterface(aIID, aResult);
|
|
}
|
|
|
|
nsCOMPtr<nsIPromptFactory> wwatch =
|
|
do_GetService(NS_WINDOWWATCHER_CONTRACTID, &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Get the an auth prompter for our window so that the parenting
|
|
// of the dialogs works as it should when using tabs.
|
|
|
|
nsCOMPtr<nsIDOMWindow> window;
|
|
if (GetOwner()) {
|
|
window = GetOwner()->GetOuterWindow();
|
|
}
|
|
|
|
return wwatch->GetPrompt(window, aIID,
|
|
reinterpret_cast<void**>(aResult));
|
|
}
|
|
// Now check for the various XHR non-DOM interfaces, except
|
|
// nsIProgressEventSink and nsIChannelEventSink which we already
|
|
// handled above.
|
|
else if (aIID.Equals(NS_GET_IID(nsIStreamListener))) {
|
|
*aResult = static_cast<nsIStreamListener*>(EnsureXPCOMifier().take());
|
|
return NS_OK;
|
|
}
|
|
else if (aIID.Equals(NS_GET_IID(nsIRequestObserver))) {
|
|
*aResult = static_cast<nsIRequestObserver*>(EnsureXPCOMifier().take());
|
|
return NS_OK;
|
|
}
|
|
else if (aIID.Equals(NS_GET_IID(nsITimerCallback))) {
|
|
*aResult = static_cast<nsITimerCallback*>(EnsureXPCOMifier().take());
|
|
return NS_OK;
|
|
}
|
|
|
|
return QueryInterface(aIID, aResult);
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::GetInterface(JSContext* aCx, nsIJSID* aIID,
|
|
JS::MutableHandle<JS::Value> aRetval,
|
|
ErrorResult& aRv)
|
|
{
|
|
dom::GetInterface(aCx, this, aIID, aRetval, aRv);
|
|
}
|
|
|
|
nsXMLHttpRequestUpload*
|
|
nsXMLHttpRequest::Upload()
|
|
{
|
|
if (!mUpload) {
|
|
mUpload = new nsXMLHttpRequestUpload(this);
|
|
}
|
|
return mUpload;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::GetUpload(nsIXMLHttpRequestUpload** aUpload)
|
|
{
|
|
RefPtr<nsXMLHttpRequestUpload> upload = Upload();
|
|
upload.forget(aUpload);
|
|
return NS_OK;
|
|
}
|
|
|
|
bool
|
|
nsXMLHttpRequest::MozAnon()
|
|
{
|
|
return mIsAnon;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::GetMozAnon(bool* aAnon)
|
|
{
|
|
*aAnon = MozAnon();
|
|
return NS_OK;
|
|
}
|
|
|
|
bool
|
|
nsXMLHttpRequest::MozSystem()
|
|
{
|
|
return IsSystemXHR();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::GetMozSystem(bool* aSystem)
|
|
{
|
|
*aSystem = MozSystem();
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::HandleTimeoutCallback()
|
|
{
|
|
if (mState & XML_HTTP_REQUEST_DONE) {
|
|
NS_NOTREACHED("nsXMLHttpRequest::HandleTimeoutCallback with completed request");
|
|
// do nothing!
|
|
return;
|
|
}
|
|
|
|
CloseRequestWithError(NS_LITERAL_STRING(TIMEOUT_STR),
|
|
XML_HTTP_REQUEST_TIMED_OUT);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequest::Notify(nsITimer* aTimer)
|
|
{
|
|
if (mProgressNotifier == aTimer) {
|
|
HandleProgressTimerCallback();
|
|
return NS_OK;
|
|
}
|
|
|
|
if (mTimeoutTimer == aTimer) {
|
|
HandleTimeoutCallback();
|
|
return NS_OK;
|
|
}
|
|
|
|
// Just in case some JS user wants to QI to nsITimerCallback and play with us...
|
|
NS_WARNING("Unexpected timer!");
|
|
return NS_ERROR_INVALID_POINTER;
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::HandleProgressTimerCallback()
|
|
{
|
|
mProgressTimerIsActive = false;
|
|
MaybeDispatchProgressEvents(false);
|
|
}
|
|
|
|
void
|
|
nsXMLHttpRequest::StartProgressEventTimer()
|
|
{
|
|
if (!mProgressNotifier) {
|
|
mProgressNotifier = do_CreateInstance(NS_TIMER_CONTRACTID);
|
|
}
|
|
if (mProgressNotifier) {
|
|
mProgressTimerIsActive = true;
|
|
mProgressNotifier->Cancel();
|
|
mProgressNotifier->InitWithCallback(this, NS_PROGRESS_EVENT_INTERVAL,
|
|
nsITimer::TYPE_ONE_SHOT);
|
|
}
|
|
}
|
|
|
|
already_AddRefed<nsXMLHttpRequestXPCOMifier>
|
|
nsXMLHttpRequest::EnsureXPCOMifier()
|
|
{
|
|
if (!mXPCOMifier) {
|
|
mXPCOMifier = new nsXMLHttpRequestXPCOMifier(this);
|
|
}
|
|
RefPtr<nsXMLHttpRequestXPCOMifier> newRef(mXPCOMifier);
|
|
return newRef.forget();
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS(nsXMLHttpRequest::nsHeaderVisitor, nsIHttpHeaderVisitor)
|
|
|
|
NS_IMETHODIMP nsXMLHttpRequest::
|
|
nsHeaderVisitor::VisitHeader(const nsACString &header, const nsACString &value)
|
|
{
|
|
if (mXHR->IsSafeHeader(header, mHttpChannel)) {
|
|
mHeaders.Append(header);
|
|
mHeaders.AppendLiteral(": ");
|
|
mHeaders.Append(value);
|
|
mHeaders.AppendLiteral("\r\n");
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
// nsXMLHttpRequestXPCOMifier implementation
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsXMLHttpRequestXPCOMifier)
|
|
NS_INTERFACE_MAP_ENTRY(nsIStreamListener)
|
|
NS_INTERFACE_MAP_ENTRY(nsIRequestObserver)
|
|
NS_INTERFACE_MAP_ENTRY(nsIChannelEventSink)
|
|
NS_INTERFACE_MAP_ENTRY(nsIAsyncVerifyRedirectCallback)
|
|
NS_INTERFACE_MAP_ENTRY(nsIProgressEventSink)
|
|
NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
|
|
NS_INTERFACE_MAP_ENTRY(nsITimerCallback)
|
|
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIStreamListener)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
NS_IMPL_CYCLE_COLLECTING_ADDREF(nsXMLHttpRequestXPCOMifier)
|
|
NS_IMPL_CYCLE_COLLECTING_RELEASE(nsXMLHttpRequestXPCOMifier)
|
|
|
|
// Can't NS_IMPL_CYCLE_COLLECTION( because mXHR has ambiguous
|
|
// inheritance from nsISupports.
|
|
NS_IMPL_CYCLE_COLLECTION_CLASS(nsXMLHttpRequestXPCOMifier)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsXMLHttpRequestXPCOMifier)
|
|
if (tmp->mXHR) {
|
|
tmp->mXHR->mXPCOMifier = nullptr;
|
|
}
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK(mXHR)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsXMLHttpRequestXPCOMifier)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mXHR)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
NS_IMETHODIMP
|
|
nsXMLHttpRequestXPCOMifier::GetInterface(const nsIID & aIID, void **aResult)
|
|
{
|
|
// Return ourselves for the things we implement (except
|
|
// nsIInterfaceRequestor) and the XHR for the rest.
|
|
if (!aIID.Equals(NS_GET_IID(nsIInterfaceRequestor))) {
|
|
nsresult rv = QueryInterface(aIID, aResult);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
return mXHR->GetInterface(aIID, aResult);
|
|
}
|
|
|
|
namespace mozilla {
|
|
|
|
ArrayBufferBuilder::ArrayBufferBuilder()
|
|
: mDataPtr(nullptr),
|
|
mCapacity(0),
|
|
mLength(0),
|
|
mMapPtr(nullptr)
|
|
{
|
|
}
|
|
|
|
ArrayBufferBuilder::~ArrayBufferBuilder()
|
|
{
|
|
reset();
|
|
}
|
|
|
|
void
|
|
ArrayBufferBuilder::reset()
|
|
{
|
|
if (mDataPtr) {
|
|
JS_free(nullptr, mDataPtr);
|
|
}
|
|
|
|
if (mMapPtr) {
|
|
JS_ReleaseMappedArrayBufferContents(mMapPtr, mLength);
|
|
mMapPtr = nullptr;
|
|
}
|
|
|
|
mDataPtr = nullptr;
|
|
mCapacity = mLength = 0;
|
|
}
|
|
|
|
bool
|
|
ArrayBufferBuilder::setCapacity(uint32_t aNewCap)
|
|
{
|
|
MOZ_ASSERT(!mMapPtr);
|
|
|
|
// To ensure that realloc won't free mDataPtr, use a size of 1
|
|
// instead of 0.
|
|
uint8_t* newdata = (uint8_t *) js_realloc(mDataPtr, aNewCap ? aNewCap : 1);
|
|
|
|
if (!newdata) {
|
|
return false;
|
|
}
|
|
|
|
if (aNewCap > mCapacity) {
|
|
memset(newdata + mCapacity, 0, aNewCap - mCapacity);
|
|
}
|
|
|
|
mDataPtr = newdata;
|
|
mCapacity = aNewCap;
|
|
if (mLength > aNewCap) {
|
|
mLength = aNewCap;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
ArrayBufferBuilder::append(const uint8_t *aNewData, uint32_t aDataLen,
|
|
uint32_t aMaxGrowth)
|
|
{
|
|
MOZ_ASSERT(!mMapPtr);
|
|
|
|
CheckedUint32 neededCapacity = mLength;
|
|
neededCapacity += aDataLen;
|
|
if (!neededCapacity.isValid()) {
|
|
return false;
|
|
}
|
|
if (mLength + aDataLen > mCapacity) {
|
|
CheckedUint32 newcap = mCapacity;
|
|
// Double while under aMaxGrowth or if not specified.
|
|
if (!aMaxGrowth || mCapacity < aMaxGrowth) {
|
|
newcap *= 2;
|
|
} else {
|
|
newcap += aMaxGrowth;
|
|
}
|
|
|
|
if (!newcap.isValid()) {
|
|
return false;
|
|
}
|
|
|
|
// But make sure there's always enough to satisfy our request.
|
|
if (newcap.value() < neededCapacity.value()) {
|
|
newcap = neededCapacity;
|
|
}
|
|
|
|
if (!setCapacity(newcap.value())) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Assert that the region isn't overlapping so we can memcpy.
|
|
MOZ_ASSERT(!areOverlappingRegions(aNewData, aDataLen, mDataPtr + mLength,
|
|
aDataLen));
|
|
|
|
memcpy(mDataPtr + mLength, aNewData, aDataLen);
|
|
mLength += aDataLen;
|
|
|
|
return true;
|
|
}
|
|
|
|
JSObject*
|
|
ArrayBufferBuilder::getArrayBuffer(JSContext* aCx)
|
|
{
|
|
if (mMapPtr) {
|
|
JSObject* obj = JS_NewMappedArrayBufferWithContents(aCx, mLength, mMapPtr);
|
|
if (!obj) {
|
|
JS_ReleaseMappedArrayBufferContents(mMapPtr, mLength);
|
|
}
|
|
mMapPtr = nullptr;
|
|
|
|
// The memory-mapped contents will be released when obj been finalized(GCed
|
|
// or neutered).
|
|
return obj;
|
|
}
|
|
|
|
// we need to check for mLength == 0, because nothing may have been
|
|
// added
|
|
if (mCapacity > mLength || mLength == 0) {
|
|
if (!setCapacity(mLength)) {
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
JSObject* obj = JS_NewArrayBufferWithContents(aCx, mLength, mDataPtr);
|
|
mLength = mCapacity = 0;
|
|
if (!obj) {
|
|
js_free(mDataPtr);
|
|
}
|
|
mDataPtr = nullptr;
|
|
return obj;
|
|
}
|
|
|
|
nsresult
|
|
ArrayBufferBuilder::mapToFileInPackage(const nsCString& aFile,
|
|
nsIFile* aJarFile)
|
|
{
|
|
#ifdef XP_WIN
|
|
// TODO: Bug 988813 - Support memory mapped array buffer for Windows platform.
|
|
MOZ_CRASH("Not implemented");
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
#else
|
|
nsresult rv;
|
|
|
|
// Open Jar file to get related attributes of target file.
|
|
RefPtr<nsZipArchive> zip = new nsZipArchive();
|
|
rv = zip->OpenArchive(aJarFile);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
nsZipItem* zipItem = zip->GetItem(aFile.get());
|
|
if (!zipItem) {
|
|
return NS_ERROR_FILE_TARGET_DOES_NOT_EXIST;
|
|
}
|
|
|
|
// If file was added to the package as stored(uncompressed), map to the
|
|
// offset of file in zip package.
|
|
if (!zipItem->Compression()) {
|
|
uint32_t offset = zip->GetDataOffset(zipItem);
|
|
uint32_t size = zipItem->RealSize();
|
|
mozilla::AutoFDClose pr_fd;
|
|
rv = aJarFile->OpenNSPRFileDesc(PR_RDONLY, 0, &pr_fd.rwget());
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
mMapPtr = JS_CreateMappedArrayBufferContents(PR_FileDesc2NativeHandle(pr_fd),
|
|
offset, size);
|
|
if (mMapPtr) {
|
|
mLength = size;
|
|
return NS_OK;
|
|
}
|
|
}
|
|
return NS_ERROR_FAILURE;
|
|
#endif
|
|
}
|
|
|
|
/* static */ bool
|
|
ArrayBufferBuilder::areOverlappingRegions(const uint8_t* aStart1,
|
|
uint32_t aLength1,
|
|
const uint8_t* aStart2,
|
|
uint32_t aLength2)
|
|
{
|
|
const uint8_t* end1 = aStart1 + aLength1;
|
|
const uint8_t* end2 = aStart2 + aLength2;
|
|
|
|
const uint8_t* max_start = aStart1 > aStart2 ? aStart1 : aStart2;
|
|
const uint8_t* min_end = end1 < end2 ? end1 : end2;
|
|
|
|
return max_start < min_end;
|
|
}
|
|
|
|
} // namespace mozilla
|