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gecko-dev/dom/webbrowserpersist/nsWebBrowserPersist.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/ArrayUtils.h"
#include "mozilla/TextUtils.h"
#include "nspr.h"
#include "nsIFileStreams.h" // New Necko file streams
#include <algorithm>
#include "nsAutoPtr.h"
#include "nsNetCID.h"
#include "nsNetUtil.h"
#include "nsIClassOfService.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsILoadContext.h"
#include "nsIPrivateBrowsingChannel.h"
#include "nsComponentManagerUtils.h"
#include "nsIComponentRegistrar.h"
#include "nsIStorageStream.h"
#include "nsISeekableStream.h"
#include "nsIHttpChannel.h"
#include "nsIHttpChannelInternal.h"
#include "nsIEncodedChannel.h"
#include "nsIUploadChannel.h"
#include "nsICacheInfoChannel.h"
#include "nsIFileChannel.h"
#include "nsEscape.h"
#include "nsUnicharUtils.h"
#include "nsIStringEnumerator.h"
#include "nsContentCID.h"
#include "nsStreamUtils.h"
#include "nsCExternalHandlerService.h"
#include "nsIURL.h"
#include "nsIFileURL.h"
#include "nsIURIMutator.h"
#include "nsIWebProgressListener.h"
#include "nsIAuthPrompt.h"
#include "nsIPrompt.h"
#include "nsISHEntry.h"
#include "nsIWebPageDescriptor.h"
#include "nsIFormControl.h"
#include "nsContentUtils.h"
#include "nsIImageLoadingContent.h"
#include "ftpCore.h"
#include "nsITransport.h"
#include "nsISocketTransport.h"
#include "nsIStringBundle.h"
#include "nsIProtocolHandler.h"
#include "nsWebBrowserPersist.h"
#include "WebBrowserPersistLocalDocument.h"
#include "nsIContent.h"
#include "nsIMIMEInfo.h"
#include "mozilla/dom/HTMLInputElement.h"
#include "mozilla/dom/HTMLSharedElement.h"
#include "mozilla/Printf.h"
using namespace mozilla;
using namespace mozilla::dom;
// Buffer file writes in 32kb chunks
#define BUFFERED_OUTPUT_SIZE (1024 * 32)
struct nsWebBrowserPersist::WalkData
{
nsCOMPtr<nsIWebBrowserPersistDocument> mDocument;
nsCOMPtr<nsIURI> mFile;
nsCOMPtr<nsIURI> mDataPath;
};
// Information about a DOM document
struct nsWebBrowserPersist::DocData
{
nsCOMPtr<nsIURI> mBaseURI;
nsCOMPtr<nsIWebBrowserPersistDocument> mDocument;
nsCOMPtr<nsIURI> mFile;
nsCString mCharset;
};
// Information about a URI
struct nsWebBrowserPersist::URIData
{
bool mNeedsPersisting;
bool mSaved;
bool mIsSubFrame;
bool mDataPathIsRelative;
bool mNeedsFixup;
nsString mFilename;
nsString mSubFrameExt;
nsCOMPtr<nsIURI> mFile;
nsCOMPtr<nsIURI> mDataPath;
nsCOMPtr<nsIURI> mRelativeDocumentURI;
nsCOMPtr<nsIPrincipal> mTriggeringPrincipal;
nsCString mRelativePathToData;
nsCString mCharset;
nsresult GetLocalURI(nsIURI *targetBaseURI, nsCString& aSpecOut);
};
// Information about the output stream
struct nsWebBrowserPersist::OutputData
{
nsCOMPtr<nsIURI> mFile;
nsCOMPtr<nsIURI> mOriginalLocation;
nsCOMPtr<nsIOutputStream> mStream;
int64_t mSelfProgress;
int64_t mSelfProgressMax;
bool mCalcFileExt;
OutputData(nsIURI *aFile, nsIURI *aOriginalLocation, bool aCalcFileExt) :
mFile(aFile),
mOriginalLocation(aOriginalLocation),
mSelfProgress(0),
mSelfProgressMax(10000),
mCalcFileExt(aCalcFileExt)
{
}
~OutputData()
{
if (mStream)
{
mStream->Close();
}
}
};
struct nsWebBrowserPersist::UploadData
{
nsCOMPtr<nsIURI> mFile;
int64_t mSelfProgress;
int64_t mSelfProgressMax;
explicit UploadData(nsIURI *aFile) :
mFile(aFile),
mSelfProgress(0),
mSelfProgressMax(10000)
{
}
};
struct nsWebBrowserPersist::CleanupData
{
nsCOMPtr<nsIFile> mFile;
// Snapshot of what the file actually is at the time of creation so that if
// it transmutes into something else later on it can be ignored. For example,
// catch files that turn into dirs or vice versa.
bool mIsDirectory;
};
class nsWebBrowserPersist::OnWalk final
: public nsIWebBrowserPersistResourceVisitor
{
public:
OnWalk(nsWebBrowserPersist* aParent, nsIURI* aFile, nsIFile* aDataPath)
: mParent(aParent)
, mFile(aFile)
, mDataPath(aDataPath)
{ }
NS_DECL_NSIWEBBROWSERPERSISTRESOURCEVISITOR
NS_DECL_ISUPPORTS
private:
RefPtr<nsWebBrowserPersist> mParent;
nsCOMPtr<nsIURI> mFile;
nsCOMPtr<nsIFile> mDataPath;
virtual ~OnWalk() = default;
};
NS_IMPL_ISUPPORTS(nsWebBrowserPersist::OnWalk,
nsIWebBrowserPersistResourceVisitor)
class nsWebBrowserPersist::OnWrite final
: public nsIWebBrowserPersistWriteCompletion
{
public:
OnWrite(nsWebBrowserPersist* aParent,
nsIURI* aFile,
nsIFile* aLocalFile)
: mParent(aParent)
, mFile(aFile)
, mLocalFile(aLocalFile)
{ }
NS_DECL_NSIWEBBROWSERPERSISTWRITECOMPLETION
NS_DECL_ISUPPORTS
private:
RefPtr<nsWebBrowserPersist> mParent;
nsCOMPtr<nsIURI> mFile;
nsCOMPtr<nsIFile> mLocalFile;
virtual ~OnWrite() = default;
};
NS_IMPL_ISUPPORTS(nsWebBrowserPersist::OnWrite,
nsIWebBrowserPersistWriteCompletion)
class nsWebBrowserPersist::FlatURIMap final
: public nsIWebBrowserPersistURIMap
{
public:
explicit FlatURIMap(const nsACString& aTargetBase)
: mTargetBase(aTargetBase) { }
void Add(const nsACString& aMapFrom, const nsACString& aMapTo) {
mMapFrom.AppendElement(aMapFrom);
mMapTo.AppendElement(aMapTo);
}
NS_DECL_NSIWEBBROWSERPERSISTURIMAP
NS_DECL_ISUPPORTS
private:
nsTArray<nsCString> mMapFrom;
nsTArray<nsCString> mMapTo;
nsCString mTargetBase;
virtual ~FlatURIMap() = default;
};
NS_IMPL_ISUPPORTS(nsWebBrowserPersist::FlatURIMap, nsIWebBrowserPersistURIMap)
NS_IMETHODIMP
nsWebBrowserPersist::FlatURIMap::GetNumMappedURIs(uint32_t* aNum)
{
MOZ_ASSERT(mMapFrom.Length() == mMapTo.Length());
*aNum = mMapTo.Length();
return NS_OK;
}
NS_IMETHODIMP
nsWebBrowserPersist::FlatURIMap::GetTargetBaseURI(nsACString& aTargetBase)
{
aTargetBase = mTargetBase;
return NS_OK;
}
NS_IMETHODIMP
nsWebBrowserPersist::FlatURIMap::GetURIMapping(uint32_t aIndex,
nsACString& aMapFrom,
nsACString& aMapTo)
{
MOZ_ASSERT(mMapFrom.Length() == mMapTo.Length());
if (aIndex >= mMapTo.Length()) {
return NS_ERROR_INVALID_ARG;
}
aMapFrom = mMapFrom[aIndex];
aMapTo = mMapTo[aIndex];
return NS_OK;
}
// Maximum file length constant. The max file name length is
// volume / server dependent but it is difficult to obtain
// that information. Instead this constant is a reasonable value that
// modern systems should able to cope with.
const uint32_t kDefaultMaxFilenameLength = 64;
// Default flags for persistence
const uint32_t kDefaultPersistFlags =
nsIWebBrowserPersist::PERSIST_FLAGS_NO_CONVERSION |
nsIWebBrowserPersist::PERSIST_FLAGS_REPLACE_EXISTING_FILES;
// String bundle where error messages come from
const char *kWebBrowserPersistStringBundle =
"chrome://global/locale/nsWebBrowserPersist.properties";
nsWebBrowserPersist::nsWebBrowserPersist() :
mCurrentDataPathIsRelative(false),
mCurrentThingsToPersist(0),
mFirstAndOnlyUse(true),
mSavingDocument(false),
mCancel(false),
mCompleted(false),
mStartSaving(false),
mReplaceExisting(true),
mSerializingOutput(false),
mIsPrivate(false),
mPersistFlags(kDefaultPersistFlags),
mPersistResult(NS_OK),
mTotalCurrentProgress(0),
mTotalMaxProgress(0),
mWrapColumn(72),
mEncodingFlags(0)
{
}
nsWebBrowserPersist::~nsWebBrowserPersist()
{
Cleanup();
}
//*****************************************************************************
// nsWebBrowserPersist::nsISupports
//*****************************************************************************
NS_IMPL_ADDREF(nsWebBrowserPersist)
NS_IMPL_RELEASE(nsWebBrowserPersist)
NS_INTERFACE_MAP_BEGIN(nsWebBrowserPersist)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIWebBrowserPersist)
NS_INTERFACE_MAP_ENTRY(nsIWebBrowserPersist)
NS_INTERFACE_MAP_ENTRY(nsICancelable)
NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
NS_INTERFACE_MAP_ENTRY(nsIStreamListener)
NS_INTERFACE_MAP_ENTRY(nsIRequestObserver)
NS_INTERFACE_MAP_ENTRY(nsIProgressEventSink)
NS_INTERFACE_MAP_END
//*****************************************************************************
// nsWebBrowserPersist::nsIInterfaceRequestor
//*****************************************************************************
NS_IMETHODIMP nsWebBrowserPersist::GetInterface(const nsIID & aIID, void **aIFace)
{
NS_ENSURE_ARG_POINTER(aIFace);
*aIFace = nullptr;
nsresult rv = QueryInterface(aIID, aIFace);
if (NS_SUCCEEDED(rv))
{
return rv;
}
if (mProgressListener && (aIID.Equals(NS_GET_IID(nsIAuthPrompt))
|| aIID.Equals(NS_GET_IID(nsIPrompt))))
{
mProgressListener->QueryInterface(aIID, aIFace);
if (*aIFace)
return NS_OK;
}
nsCOMPtr<nsIInterfaceRequestor> req = do_QueryInterface(mProgressListener);
if (req)
{
return req->GetInterface(aIID, aIFace);
}
return NS_ERROR_NO_INTERFACE;
}
//*****************************************************************************
// nsWebBrowserPersist::nsIWebBrowserPersist
//*****************************************************************************
NS_IMETHODIMP nsWebBrowserPersist::GetPersistFlags(uint32_t *aPersistFlags)
{
NS_ENSURE_ARG_POINTER(aPersistFlags);
*aPersistFlags = mPersistFlags;
return NS_OK;
}
NS_IMETHODIMP nsWebBrowserPersist::SetPersistFlags(uint32_t aPersistFlags)
{
mPersistFlags = aPersistFlags;
mReplaceExisting = (mPersistFlags & PERSIST_FLAGS_REPLACE_EXISTING_FILES) ? true : false;
mSerializingOutput = (mPersistFlags & PERSIST_FLAGS_SERIALIZE_OUTPUT) ? true : false;
return NS_OK;
}
NS_IMETHODIMP nsWebBrowserPersist::GetCurrentState(uint32_t *aCurrentState)
{
NS_ENSURE_ARG_POINTER(aCurrentState);
if (mCompleted)
{
*aCurrentState = PERSIST_STATE_FINISHED;
}
else if (mFirstAndOnlyUse)
{
*aCurrentState = PERSIST_STATE_SAVING;
}
else
{
*aCurrentState = PERSIST_STATE_READY;
}
return NS_OK;
}
NS_IMETHODIMP nsWebBrowserPersist::GetResult(nsresult *aResult)
{
NS_ENSURE_ARG_POINTER(aResult);
*aResult = mPersistResult;
return NS_OK;
}
NS_IMETHODIMP nsWebBrowserPersist::GetProgressListener(
nsIWebProgressListener * *aProgressListener)
{
NS_ENSURE_ARG_POINTER(aProgressListener);
*aProgressListener = mProgressListener;
NS_IF_ADDREF(*aProgressListener);
return NS_OK;
}
NS_IMETHODIMP nsWebBrowserPersist::SetProgressListener(
nsIWebProgressListener * aProgressListener)
{
mProgressListener = aProgressListener;
mProgressListener2 = do_QueryInterface(aProgressListener);
mEventSink = do_GetInterface(aProgressListener);
return NS_OK;
}
NS_IMETHODIMP nsWebBrowserPersist::SaveURI(
nsIURI *aURI, nsIPrincipal *aPrincipal, uint32_t aCacheKey,
nsIURI *aReferrer, uint32_t aReferrerPolicy,
nsIInputStream *aPostData, const char *aExtraHeaders,
nsISupports *aFile, nsILoadContext* aPrivacyContext)
{
bool isPrivate =
aPrivacyContext && aPrivacyContext->UsePrivateBrowsing();
return SavePrivacyAwareURI(aURI, aPrincipal, aCacheKey,
aReferrer, aReferrerPolicy,
aPostData, aExtraHeaders, aFile, isPrivate);
}
NS_IMETHODIMP nsWebBrowserPersist::SavePrivacyAwareURI(
nsIURI *aURI, nsIPrincipal *aPrincipal, uint32_t aCacheKey,
nsIURI *aReferrer, uint32_t aReferrerPolicy,
nsIInputStream *aPostData, const char *aExtraHeaders,
nsISupports *aFile, bool aIsPrivate)
{
NS_ENSURE_TRUE(mFirstAndOnlyUse, NS_ERROR_FAILURE);
mFirstAndOnlyUse = false; // Stop people from reusing this object!
nsCOMPtr<nsIURI> fileAsURI;
nsresult rv;
rv = GetValidURIFromObject(aFile, getter_AddRefs(fileAsURI));
NS_ENSURE_SUCCESS(rv, NS_ERROR_INVALID_ARG);
// SaveURI doesn't like broken uris.
mPersistFlags |= PERSIST_FLAGS_FAIL_ON_BROKEN_LINKS;
rv = SaveURIInternal(aURI, aPrincipal, aCacheKey,
aReferrer, aReferrerPolicy,
aPostData, aExtraHeaders, fileAsURI,
false, aIsPrivate);
return NS_FAILED(rv) ? rv : NS_OK;
}
NS_IMETHODIMP nsWebBrowserPersist::SaveChannel(
nsIChannel *aChannel, nsISupports *aFile)
{
NS_ENSURE_TRUE(mFirstAndOnlyUse, NS_ERROR_FAILURE);
mFirstAndOnlyUse = false; // Stop people from reusing this object!
nsCOMPtr<nsIURI> fileAsURI;
nsresult rv;
rv = GetValidURIFromObject(aFile, getter_AddRefs(fileAsURI));
NS_ENSURE_SUCCESS(rv, NS_ERROR_INVALID_ARG);
rv = aChannel->GetURI(getter_AddRefs(mURI));
NS_ENSURE_SUCCESS(rv, rv);
// SaveURI doesn't like broken uris.
mPersistFlags |= PERSIST_FLAGS_FAIL_ON_BROKEN_LINKS;
rv = SaveChannelInternal(aChannel, fileAsURI, false);
return NS_FAILED(rv) ? rv : NS_OK;
}
NS_IMETHODIMP nsWebBrowserPersist::SaveDocument(
nsISupports *aDocument, nsISupports *aFile, nsISupports *aDataPath,
const char *aOutputContentType, uint32_t aEncodingFlags, uint32_t aWrapColumn)
{
NS_ENSURE_TRUE(mFirstAndOnlyUse, NS_ERROR_FAILURE);
mFirstAndOnlyUse = false; // Stop people from reusing this object!
// We need a STATE_IS_NETWORK start/stop pair to bracket the
// notification callbacks. For a whole document we generate those
// here and in EndDownload(), but for the single-request methods
// that's done in On{Start,Stop}Request instead.
mSavingDocument = true;
NS_ENSURE_ARG_POINTER(aDocument);
NS_ENSURE_ARG_POINTER(aFile);
nsCOMPtr<nsIURI> fileAsURI;
nsCOMPtr<nsIURI> datapathAsURI;
nsresult rv;
rv = GetValidURIFromObject(aFile, getter_AddRefs(fileAsURI));
NS_ENSURE_SUCCESS(rv, NS_ERROR_INVALID_ARG);
if (aDataPath)
{
rv = GetValidURIFromObject(aDataPath, getter_AddRefs(datapathAsURI));
NS_ENSURE_SUCCESS(rv, NS_ERROR_INVALID_ARG);
}
mWrapColumn = aWrapColumn;
mEncodingFlags = aEncodingFlags;
if (aOutputContentType)
{
mContentType.AssignASCII(aOutputContentType);
}
// State start notification
if (mProgressListener) {
mProgressListener->OnStateChange(nullptr, nullptr,
nsIWebProgressListener::STATE_START
| nsIWebProgressListener::STATE_IS_NETWORK, NS_OK);
}
nsCOMPtr<nsIWebBrowserPersistDocument> doc = do_QueryInterface(aDocument);
if (!doc) {
nsCOMPtr<nsIDocument> localDoc = do_QueryInterface(aDocument);
if (localDoc) {
doc = new mozilla::WebBrowserPersistLocalDocument(localDoc);
} else {
rv = NS_ERROR_NO_INTERFACE;
}
}
if (doc) {
rv = SaveDocumentInternal(doc, fileAsURI, datapathAsURI);
}
if (NS_FAILED(rv)) {
SendErrorStatusChange(true, rv, nullptr, mURI);
EndDownload(rv);
}
return rv;
}
NS_IMETHODIMP nsWebBrowserPersist::Cancel(nsresult aReason)
{
mCancel = true;
EndDownload(aReason);
return NS_OK;
}
NS_IMETHODIMP nsWebBrowserPersist::CancelSave()
{
return Cancel(NS_BINDING_ABORTED);
}
nsresult
nsWebBrowserPersist::StartUpload(nsIStorageStream *storStream,
nsIURI *aDestinationURI, const nsACString &aContentType)
{
// setup the upload channel if the destination is not local
nsCOMPtr<nsIInputStream> inputstream;
nsresult rv = storStream->NewInputStream(0, getter_AddRefs(inputstream));
NS_ENSURE_TRUE(inputstream, NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
return StartUpload(inputstream, aDestinationURI, aContentType);
}
nsresult
nsWebBrowserPersist::StartUpload(nsIInputStream *aInputStream,
nsIURI *aDestinationURI, const nsACString &aContentType)
{
nsCOMPtr<nsIChannel> destChannel;
CreateChannelFromURI(aDestinationURI, getter_AddRefs(destChannel));
nsCOMPtr<nsIUploadChannel> uploadChannel(do_QueryInterface(destChannel));
NS_ENSURE_TRUE(uploadChannel, NS_ERROR_FAILURE);
// Set the upload stream
// NOTE: ALL data must be available in "inputstream"
nsresult rv = uploadChannel->SetUploadStream(aInputStream, aContentType, -1);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
rv = destChannel->AsyncOpen2(this);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
// add this to the upload list
nsCOMPtr<nsISupports> keyPtr = do_QueryInterface(destChannel);
mUploadList.Put(keyPtr, new UploadData(aDestinationURI));
return NS_OK;
}
void
nsWebBrowserPersist::SerializeNextFile()
{
nsresult rv = NS_OK;
MOZ_ASSERT(mWalkStack.Length() == 0);
// First, handle gathered URIs.
// Count how many URIs in the URI map require persisting
uint32_t urisToPersist = 0;
if (mURIMap.Count() > 0) {
// This is potentially O(n^2), when taking into account the
// number of times this method is called. If it becomes a
// bottleneck, the count of not-yet-persisted URIs could be
// maintained separately.
for (auto iter = mURIMap.Iter(); !iter.Done(); iter.Next()) {
URIData *data = iter.UserData();
if (data->mNeedsPersisting && !data->mSaved) {
urisToPersist++;
}
}
}
if (urisToPersist > 0) {
NS_ENSURE_SUCCESS_VOID(rv);
// Persist each file in the uri map. The document(s)
// will be saved after the last one of these is saved.
for (auto iter = mURIMap.Iter(); !iter.Done(); iter.Next()) {
URIData *data = iter.UserData();
if (!data->mNeedsPersisting || data->mSaved) {
continue;
}
// Create a URI from the key.
nsCOMPtr<nsIURI> uri;
rv = NS_NewURI(getter_AddRefs(uri), iter.Key(),
data->mCharset.get());
if (NS_WARN_IF(NS_FAILED(rv))) {
break;
}
// Make a URI to save the data to.
nsCOMPtr<nsIURI> fileAsURI = data->mDataPath;
rv = AppendPathToURI(fileAsURI, data->mFilename, fileAsURI);
if (NS_WARN_IF(NS_FAILED(rv))) {
break;
}
// The Referrer Policy doesn't matter here since the referrer is
// nullptr.
rv = SaveURIInternal(uri, data->mTriggeringPrincipal, 0, nullptr,
mozilla::net::RP_Unset, nullptr, nullptr,
fileAsURI, true, mIsPrivate);
// If SaveURIInternal fails, then it will have called EndDownload,
// which means that |data| is no longer valid memory. We MUST bail.
if (NS_WARN_IF(NS_FAILED(rv))) {
break;
}
if (rv == NS_OK) {
// URIData.mFile will be updated to point to the correct
// URI object when it is fixed up with the right file extension
// in OnStartRequest
data->mFile = fileAsURI;
data->mSaved = true;
} else {
data->mNeedsFixup = false;
}
if (mSerializingOutput) {
break;
}
}
}
// If there are downloads happening, wait until they're done; the
// OnStopRequest handler will call this method again.
if (mOutputMap.Count() > 0) {
return;
}
// If serializing, also wait until last upload is done.
if (mSerializingOutput && mUploadList.Count() > 0) {
return;
}
// If there are also no more documents, then we're done.
if (mDocList.Length() == 0) {
// ...or not quite done, if there are still uploads.
if (mUploadList.Count() > 0) {
return;
}
// Finish and clean things up. Defer this because the caller
// may have been expecting to use the listeners that that
// method will clear.
NS_DispatchToCurrentThread(
NewRunnableMethod("nsWebBrowserPersist::FinishDownload",
this,
&nsWebBrowserPersist::FinishDownload));
return;
}
// There are no URIs to save, so just save the next document.
mStartSaving = true;
mozilla::UniquePtr<DocData> docData(mDocList.ElementAt(0));
mDocList.RemoveElementAt(0); // O(n^2) but probably doesn't matter.
MOZ_ASSERT(docData);
if (!docData) {
EndDownload(NS_ERROR_FAILURE);
return;
}
mCurrentBaseURI = docData->mBaseURI;
mCurrentCharset = docData->mCharset;
mTargetBaseURI = docData->mFile;
// Save the document, fixing it up with the new URIs as we do
nsAutoCString targetBaseSpec;
if (mTargetBaseURI) {
rv = mTargetBaseURI->GetSpec(targetBaseSpec);
if (NS_FAILED(rv)) {
SendErrorStatusChange(true, rv, nullptr, nullptr);
EndDownload(rv);
return;
}
}
// mFlatURIMap must be rebuilt each time through SerializeNextFile, as
// mTargetBaseURI is used to create the relative URLs and will be different
// with each serialized document.
RefPtr<FlatURIMap> flatMap = new FlatURIMap(targetBaseSpec);
for (auto iter = mURIMap.Iter(); !iter.Done(); iter.Next()) {
nsAutoCString mapTo;
nsresult rv = iter.UserData()->GetLocalURI(mTargetBaseURI, mapTo);
if (NS_SUCCEEDED(rv) || !mapTo.IsVoid()) {
flatMap->Add(iter.Key(), mapTo);
}
}
mFlatURIMap = flatMap.forget();
nsCOMPtr<nsIFile> localFile;
GetLocalFileFromURI(docData->mFile, getter_AddRefs(localFile));
if (localFile) {
// if we're not replacing an existing file but the file
// exists, something is wrong
bool fileExists = false;
rv = localFile->Exists(&fileExists);
if (NS_SUCCEEDED(rv) && !mReplaceExisting && fileExists) {
rv = NS_ERROR_FILE_ALREADY_EXISTS;
}
if (NS_FAILED(rv)) {
SendErrorStatusChange(false, rv, nullptr, docData->mFile);
EndDownload(rv);
return;
}
}
nsCOMPtr<nsIOutputStream> outputStream;
rv = MakeOutputStream(docData->mFile, getter_AddRefs(outputStream));
if (NS_SUCCEEDED(rv) && !outputStream) {
rv = NS_ERROR_FAILURE;
}
if (NS_FAILED(rv)) {
SendErrorStatusChange(false, rv, nullptr, docData->mFile);
EndDownload(rv);
return;
}
RefPtr<OnWrite> finish = new OnWrite(this, docData->mFile, localFile);
rv = docData->mDocument->WriteContent(outputStream,
mFlatURIMap,
NS_ConvertUTF16toUTF8(mContentType),
mEncodingFlags,
mWrapColumn,
finish);
if (NS_FAILED(rv)) {
SendErrorStatusChange(false, rv, nullptr, docData->mFile);
EndDownload(rv);
}
}
NS_IMETHODIMP
nsWebBrowserPersist::OnWrite::OnFinish(nsIWebBrowserPersistDocument* aDoc,
nsIOutputStream *aStream,
const nsACString& aContentType,
nsresult aStatus)
{
nsresult rv = aStatus;
if (NS_FAILED(rv)) {
mParent->SendErrorStatusChange(false, rv, nullptr, mFile);
mParent->EndDownload(rv);
return NS_OK;
}
if (!mLocalFile) {
nsCOMPtr<nsIStorageStream> storStream(do_QueryInterface(aStream));
if (storStream) {
aStream->Close();
rv = mParent->StartUpload(storStream, mFile, aContentType);
if (NS_FAILED(rv)) {
mParent->SendErrorStatusChange(false, rv, nullptr, mFile);
mParent->EndDownload(rv);
}
// Either we failed and we're done, or we're uploading and
// the OnStopRequest callback is responsible for the next
// SerializeNextFile().
return NS_OK;
}
}
NS_DispatchToCurrentThread(
NewRunnableMethod("nsWebBrowserPersist::SerializeNextFile",
mParent,
&nsWebBrowserPersist::SerializeNextFile));
return NS_OK;
}
//*****************************************************************************
// nsWebBrowserPersist::nsIRequestObserver
//*****************************************************************************
NS_IMETHODIMP nsWebBrowserPersist::OnStartRequest(
nsIRequest* request, nsISupports *ctxt)
{
if (mProgressListener)
{
uint32_t stateFlags = nsIWebProgressListener::STATE_START |
nsIWebProgressListener::STATE_IS_REQUEST;
if (!mSavingDocument) {
stateFlags |= nsIWebProgressListener::STATE_IS_NETWORK;
}
mProgressListener->OnStateChange(nullptr, request, stateFlags, NS_OK);
}
nsCOMPtr<nsIChannel> channel = do_QueryInterface(request);
NS_ENSURE_TRUE(channel, NS_ERROR_FAILURE);
nsCOMPtr<nsISupports> keyPtr = do_QueryInterface(request);
OutputData *data = mOutputMap.Get(keyPtr);
// NOTE: This code uses the channel as a hash key so it will not
// recognize redirected channels because the key is not the same.
// When that happens we remove and add the data entry to use the
// new channel as the hash key.
if (!data)
{
UploadData *upData = mUploadList.Get(keyPtr);
if (!upData)
{
// Redirect? Try and fixup the output table
nsresult rv = FixRedirectedChannelEntry(channel);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
// Should be able to find the data after fixup unless redirects
// are disabled.
data = mOutputMap.Get(keyPtr);
if (!data)
{
return NS_ERROR_FAILURE;
}
}
}
if (data && data->mFile)
{
// If PERSIST_FLAGS_AUTODETECT_APPLY_CONVERSION is set in mPersistFlags,
// try to determine whether this channel needs to apply Content-Encoding
// conversions.
NS_ASSERTION(!((mPersistFlags & PERSIST_FLAGS_AUTODETECT_APPLY_CONVERSION) &&
(mPersistFlags & PERSIST_FLAGS_NO_CONVERSION)),
"Conflict in persist flags: both AUTODETECT and NO_CONVERSION set");
if (mPersistFlags & PERSIST_FLAGS_AUTODETECT_APPLY_CONVERSION)
SetApplyConversionIfNeeded(channel);
if (data->mCalcFileExt && !(mPersistFlags & PERSIST_FLAGS_DONT_CHANGE_FILENAMES))
{
nsCOMPtr<nsIURI> uriWithExt;
// this is the first point at which the server can tell us the mimetype
nsresult rv = CalculateAndAppendFileExt(data->mFile, channel, data->mOriginalLocation, uriWithExt);
if (NS_SUCCEEDED(rv)) {
data->mFile = uriWithExt;
}
// now make filename conformant and unique
nsCOMPtr<nsIURI> uniqueFilenameURI;
rv = CalculateUniqueFilename(data->mFile, uniqueFilenameURI);
if (NS_SUCCEEDED(rv)) {
data->mFile = uniqueFilenameURI;
}
// The URIData entry is pointing to the old unfixed URI, so we need
// to update it.
nsCOMPtr<nsIURI> chanURI;
rv = channel->GetOriginalURI(getter_AddRefs(chanURI));
if (NS_SUCCEEDED(rv)) {
nsAutoCString spec;
chanURI->GetSpec(spec);
URIData *uridata;
if (mURIMap.Get(spec, &uridata)) {
uridata->mFile = data->mFile;
}
}
}
// compare uris and bail before we add to output map if they are equal
bool isEqual = false;
if (NS_SUCCEEDED(data->mFile->Equals(data->mOriginalLocation, &isEqual))
&& isEqual)
{
// remove from output map
mOutputMap.Remove(keyPtr);
// cancel; we don't need to know any more
// stop request will get called
request->Cancel(NS_BINDING_ABORTED);
}
}
return NS_OK;
}
NS_IMETHODIMP nsWebBrowserPersist::OnStopRequest(
nsIRequest* request, nsISupports *ctxt, nsresult status)
{
nsCOMPtr<nsISupports> keyPtr = do_QueryInterface(request);
OutputData *data = mOutputMap.Get(keyPtr);
if (data) {
if (NS_SUCCEEDED(mPersistResult) && NS_FAILED(status)) {
SendErrorStatusChange(true, status, request, data->mFile);
}
// This will automatically close the output stream
mOutputMap.Remove(keyPtr);
} else {
// if we didn't find the data in mOutputMap, try mUploadList
UploadData *upData = mUploadList.Get(keyPtr);
if (upData) {
mUploadList.Remove(keyPtr);
}
}
// Do more work.
SerializeNextFile();
if (mProgressListener) {
uint32_t stateFlags = nsIWebProgressListener::STATE_STOP |
nsIWebProgressListener::STATE_IS_REQUEST;
if (!mSavingDocument) {
stateFlags |= nsIWebProgressListener::STATE_IS_NETWORK;
}
mProgressListener->OnStateChange(nullptr, request, stateFlags, status);
}
return NS_OK;
}
//*****************************************************************************
// nsWebBrowserPersist::nsIStreamListener
//*****************************************************************************
NS_IMETHODIMP
nsWebBrowserPersist::OnDataAvailable(
nsIRequest* request, nsISupports *aContext, nsIInputStream *aIStream,
uint64_t aOffset, uint32_t aLength)
{
bool cancel = mCancel;
if (!cancel)
{
nsresult rv = NS_OK;
uint32_t bytesRemaining = aLength;
nsCOMPtr<nsIChannel> channel = do_QueryInterface(request);
NS_ENSURE_TRUE(channel, NS_ERROR_FAILURE);
nsCOMPtr<nsISupports> keyPtr = do_QueryInterface(request);
OutputData *data = mOutputMap.Get(keyPtr);
if (!data) {
// might be uploadData; consume necko's buffer and bail...
uint32_t n;
return aIStream->ReadSegments(NS_DiscardSegment, nullptr, aLength, &n);
}
bool readError = true;
// Make the output stream
if (!data->mStream)
{
rv = MakeOutputStream(data->mFile, getter_AddRefs(data->mStream));
if (NS_FAILED(rv))
{
readError = false;
cancel = true;
}
}
// Read data from the input and write to the output
char buffer[8192];
uint32_t bytesRead;
while (!cancel && bytesRemaining)
{
readError = true;
rv = aIStream->Read(buffer,
std::min(uint32_t(sizeof(buffer)), bytesRemaining),
&bytesRead);
if (NS_SUCCEEDED(rv))
{
readError = false;
// Write out the data until something goes wrong, or, it is
// all written. We loop because for some errors (e.g., disk
// full), we get NS_OK with some bytes written, then an error.
// So, we want to write again in that case to get the actual
// error code.
const char *bufPtr = buffer; // Where to write from.
while (NS_SUCCEEDED(rv) && bytesRead)
{
uint32_t bytesWritten = 0;
rv = data->mStream->Write(bufPtr, bytesRead, &bytesWritten);
if (NS_SUCCEEDED(rv))
{
bytesRead -= bytesWritten;
bufPtr += bytesWritten;
bytesRemaining -= bytesWritten;
// Force an error if (for some reason) we get NS_OK but
// no bytes written.
if (!bytesWritten)
{
rv = NS_ERROR_FAILURE;
cancel = true;
}
}
else
{
// Disaster - can't write out the bytes - disk full / permission?
cancel = true;
}
}
}
else
{
// Disaster - can't read the bytes - broken link / file error?
cancel = true;
}
}
int64_t channelContentLength = -1;
if (!cancel &&
NS_SUCCEEDED(channel->GetContentLength(&channelContentLength)))
{
// if we get -1 at this point, we didn't get content-length header
// assume that we got all of the data and push what we have;
// that's the best we can do now
if ((-1 == channelContentLength) ||
((channelContentLength - (aOffset + aLength)) == 0))
{
NS_WARNING_ASSERTION(
channelContentLength != -1,
"nsWebBrowserPersist::OnDataAvailable() no content length "
"header, pushing what we have");
// we're done with this pass; see if we need to do upload
nsAutoCString contentType;
channel->GetContentType(contentType);
// if we don't have the right type of output stream then it's a local file
nsCOMPtr<nsIStorageStream> storStream(do_QueryInterface(data->mStream));
if (storStream)
{
data->mStream->Close();
data->mStream = nullptr; // null out stream so we don't close it later
rv = StartUpload(storStream, data->mFile, contentType);
if (NS_FAILED(rv))
{
readError = false;
cancel = true;
}
}
}
}
// Notify listener if an error occurred.
if (cancel)
{
SendErrorStatusChange(readError, rv,
readError ? request : nullptr, data->mFile);
}
}
// Cancel reading?
if (cancel)
{
EndDownload(NS_BINDING_ABORTED);
}
return NS_OK;
}
//*****************************************************************************
// nsWebBrowserPersist::nsIProgressEventSink
//*****************************************************************************
NS_IMETHODIMP nsWebBrowserPersist::OnProgress(
nsIRequest *request, nsISupports *ctxt, int64_t aProgress,
int64_t aProgressMax)
{
if (!mProgressListener)
{
return NS_OK;
}
// Store the progress of this request
nsCOMPtr<nsISupports> keyPtr = do_QueryInterface(request);
OutputData *data = mOutputMap.Get(keyPtr);
if (data)
{
data->mSelfProgress = aProgress;
data->mSelfProgressMax = aProgressMax;
}
else
{
UploadData *upData = mUploadList.Get(keyPtr);
if (upData)
{
upData->mSelfProgress = aProgress;
upData->mSelfProgressMax = aProgressMax;
}
}
// Notify listener of total progress
CalcTotalProgress();
if (mProgressListener2)
{
mProgressListener2->OnProgressChange64(nullptr, request, aProgress,
aProgressMax, mTotalCurrentProgress, mTotalMaxProgress);
}
else
{
// have to truncate 64-bit to 32bit
mProgressListener->OnProgressChange(nullptr, request, uint64_t(aProgress),
uint64_t(aProgressMax), mTotalCurrentProgress, mTotalMaxProgress);
}
// If our progress listener implements nsIProgressEventSink,
// forward the notification
if (mEventSink)
{
mEventSink->OnProgress(request, ctxt, aProgress, aProgressMax);
}
return NS_OK;
}
NS_IMETHODIMP nsWebBrowserPersist::OnStatus(
nsIRequest *request, nsISupports *ctxt, nsresult status,
const char16_t *statusArg)
{
if (mProgressListener)
{
// We need to filter out non-error error codes.
// Is the only NS_SUCCEEDED value NS_OK?
switch ( status )
{
case NS_NET_STATUS_RESOLVING_HOST:
case NS_NET_STATUS_RESOLVED_HOST:
case NS_NET_STATUS_BEGIN_FTP_TRANSACTION:
case NS_NET_STATUS_END_FTP_TRANSACTION:
case NS_NET_STATUS_CONNECTING_TO:
case NS_NET_STATUS_CONNECTED_TO:
case NS_NET_STATUS_TLS_HANDSHAKE_STARTING:
case NS_NET_STATUS_TLS_HANDSHAKE_ENDED:
case NS_NET_STATUS_SENDING_TO:
case NS_NET_STATUS_RECEIVING_FROM:
case NS_NET_STATUS_WAITING_FOR:
case NS_NET_STATUS_READING:
case NS_NET_STATUS_WRITING:
break;
default:
// Pass other notifications (for legitimate errors) along.
mProgressListener->OnStatusChange(nullptr, request, status, statusArg);
break;
}
}
// If our progress listener implements nsIProgressEventSink,
// forward the notification
if (mEventSink)
{
mEventSink->OnStatus(request, ctxt, status, statusArg);
}
return NS_OK;
}
//*****************************************************************************
// nsWebBrowserPersist private methods
//*****************************************************************************
// Convert error info into proper message text and send OnStatusChange notification
// to the web progress listener.
nsresult nsWebBrowserPersist::SendErrorStatusChange(
bool aIsReadError, nsresult aResult, nsIRequest *aRequest, nsIURI *aURI)
{
NS_ENSURE_ARG_POINTER(aURI);
if (!mProgressListener)
{
// Do nothing
return NS_OK;
}
// Get the file path or spec from the supplied URI
nsCOMPtr<nsIFile> file;
GetLocalFileFromURI(aURI, getter_AddRefs(file));
nsAutoString path;
nsresult rv;
if (file)
{
file->GetPath(path);
}
else
{
nsAutoCString fileurl;
rv = aURI->GetSpec(fileurl);
NS_ENSURE_SUCCESS(rv, rv);
AppendUTF8toUTF16(fileurl, path);
}
const char* msgId;
switch(aResult)
{
case NS_ERROR_FILE_NAME_TOO_LONG:
// File name too long.
msgId = "fileNameTooLongError";
break;
case NS_ERROR_FILE_ALREADY_EXISTS:
// File exists with same name as directory.
msgId = "fileAlreadyExistsError";
break;
case NS_ERROR_FILE_DISK_FULL:
case NS_ERROR_FILE_NO_DEVICE_SPACE:
// Out of space on target volume.
msgId = "diskFull";
break;
case NS_ERROR_FILE_READ_ONLY:
// Attempt to write to read/only file.
msgId = "readOnly";
break;
case NS_ERROR_FILE_ACCESS_DENIED:
// Attempt to write without sufficient permissions.
msgId = "accessError";
break;
default:
// Generic read/write error message.
if (aIsReadError)
msgId = "readError";
else
msgId = "writeError";
break;
}
// Get properties file bundle and extract status string.
nsCOMPtr<nsIStringBundleService> s = do_GetService(NS_STRINGBUNDLE_CONTRACTID, &rv);
NS_ENSURE_TRUE(NS_SUCCEEDED(rv) && s, NS_ERROR_FAILURE);
nsCOMPtr<nsIStringBundle> bundle;
rv = s->CreateBundle(kWebBrowserPersistStringBundle, getter_AddRefs(bundle));
NS_ENSURE_TRUE(NS_SUCCEEDED(rv) && bundle, NS_ERROR_FAILURE);
nsAutoString msgText;
const char16_t *strings[1];
strings[0] = path.get();
rv = bundle->FormatStringFromName(msgId, strings, 1, msgText);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
mProgressListener->OnStatusChange(nullptr, aRequest, aResult,
msgText.get());
return NS_OK;
}
nsresult nsWebBrowserPersist::GetValidURIFromObject(nsISupports *aObject, nsIURI **aURI) const
{
NS_ENSURE_ARG_POINTER(aObject);
NS_ENSURE_ARG_POINTER(aURI);
nsCOMPtr<nsIFile> objAsFile = do_QueryInterface(aObject);
if (objAsFile)
{
return NS_NewFileURI(aURI, objAsFile);
}
nsCOMPtr<nsIURI> objAsURI = do_QueryInterface(aObject);
if (objAsURI)
{
*aURI = objAsURI;
NS_ADDREF(*aURI);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
/* static */ nsresult
nsWebBrowserPersist::GetLocalFileFromURI(nsIURI *aURI, nsIFile **aLocalFile)
{
nsresult rv;
nsCOMPtr<nsIFileURL> fileURL = do_QueryInterface(aURI, &rv);
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsIFile> file;
rv = fileURL->GetFile(getter_AddRefs(file));
if (NS_FAILED(rv)) {
return rv;
}
file.forget(aLocalFile);
return NS_OK;
}
/* static */ nsresult
nsWebBrowserPersist::AppendPathToURI(nsIURI *aURI, const nsAString & aPath, nsCOMPtr<nsIURI>& aOutURI)
{
NS_ENSURE_ARG_POINTER(aURI);
nsAutoCString newPath;
nsresult rv = aURI->GetPathQueryRef(newPath);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
// Append a forward slash if necessary
int32_t len = newPath.Length();
if (len > 0 && newPath.CharAt(len - 1) != '/')
{
newPath.Append('/');
}
// Store the path back on the URI
AppendUTF16toUTF8(aPath, newPath);
return NS_MutateURI(aURI)
.SetPathQueryRef(newPath)
.Finalize(aOutURI);
}
nsresult nsWebBrowserPersist::SaveURIInternal(
nsIURI *aURI, nsIPrincipal* aTriggeringPrincipal,
uint32_t aCacheKey, nsIURI *aReferrer,
uint32_t aReferrerPolicy, nsIInputStream *aPostData,
const char *aExtraHeaders, nsIURI *aFile,
bool aCalcFileExt, bool aIsPrivate)
{
NS_ENSURE_ARG_POINTER(aURI);
NS_ENSURE_ARG_POINTER(aFile);
NS_ENSURE_ARG_POINTER(aTriggeringPrincipal);
nsresult rv = NS_OK;
mURI = aURI;
nsLoadFlags loadFlags = nsIRequest::LOAD_NORMAL;
if (mPersistFlags & PERSIST_FLAGS_BYPASS_CACHE)
{
loadFlags |= nsIRequest::LOAD_BYPASS_CACHE;
}
else if (mPersistFlags & PERSIST_FLAGS_FROM_CACHE)
{
loadFlags |= nsIRequest::LOAD_FROM_CACHE;
}
// Open a channel to the URI
nsCOMPtr<nsIChannel> inputChannel;
rv = NS_NewChannel(getter_AddRefs(inputChannel),
aURI,
aTriggeringPrincipal,
nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL,
nsIContentPolicy::TYPE_OTHER,
nullptr, // aPerformanceStorage
nullptr, // aLoadGroup
static_cast<nsIInterfaceRequestor*>(this),
loadFlags);
nsCOMPtr<nsIPrivateBrowsingChannel> pbChannel = do_QueryInterface(inputChannel);
if (pbChannel)
{
pbChannel->SetPrivate(aIsPrivate);
}
if (NS_FAILED(rv) || inputChannel == nullptr)
{
EndDownload(NS_ERROR_FAILURE);
return NS_ERROR_FAILURE;
}
// Disable content conversion
if (mPersistFlags & PERSIST_FLAGS_NO_CONVERSION)
{
nsCOMPtr<nsIEncodedChannel> encodedChannel(do_QueryInterface(inputChannel));
if (encodedChannel)
{
encodedChannel->SetApplyConversion(false);
}
}
// Set the referrer, post data and headers if any
nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(inputChannel));
if (httpChannel)
{
// Referrer
if (aReferrer)
{
rv = httpChannel->SetReferrerWithPolicy(aReferrer, aReferrerPolicy);
MOZ_ASSERT(NS_SUCCEEDED(rv));
}
// Post data
if (aPostData)
{
nsCOMPtr<nsISeekableStream> stream(do_QueryInterface(aPostData));
if (stream)
{
// Rewind the postdata stream
stream->Seek(nsISeekableStream::NS_SEEK_SET, 0);
nsCOMPtr<nsIUploadChannel> uploadChannel(do_QueryInterface(httpChannel));
NS_ASSERTION(uploadChannel, "http must support nsIUploadChannel");
// Attach the postdata to the http channel
uploadChannel->SetUploadStream(aPostData, EmptyCString(), -1);
}
}
// Cache key
nsCOMPtr<nsICacheInfoChannel> cacheChannel(do_QueryInterface(httpChannel));
if (cacheChannel && aCacheKey != 0) {
cacheChannel->SetCacheKey(aCacheKey);
}
// Headers
if (aExtraHeaders)
{
nsAutoCString oneHeader;
nsAutoCString headerName;
nsAutoCString headerValue;
int32_t crlf = 0;
int32_t colon = 0;
const char *kWhitespace = "\b\t\r\n ";
nsAutoCString extraHeaders(aExtraHeaders);
while (true)
{
crlf = extraHeaders.Find("\r\n", true);
if (crlf == -1)
break;
extraHeaders.Mid(oneHeader, 0, crlf);
extraHeaders.Cut(0, crlf + 2);
colon = oneHeader.Find(":");
if (colon == -1)
break; // Should have a colon
oneHeader.Left(headerName, colon);
colon++;
oneHeader.Mid(headerValue, colon, oneHeader.Length() - colon);
headerName.Trim(kWhitespace);
headerValue.Trim(kWhitespace);
// Add the header (merging if required)
rv = httpChannel->SetRequestHeader(headerName, headerValue, true);
if (NS_FAILED(rv))
{
EndDownload(NS_ERROR_FAILURE);
return NS_ERROR_FAILURE;
}
}
}
}
return SaveChannelInternal(inputChannel, aFile, aCalcFileExt);
}
nsresult nsWebBrowserPersist::SaveChannelInternal(
nsIChannel *aChannel, nsIURI *aFile, bool aCalcFileExt)
{
NS_ENSURE_ARG_POINTER(aChannel);
NS_ENSURE_ARG_POINTER(aFile);
// The default behaviour of SaveChannelInternal is to download the source
// into a storage stream and upload that to the target. MakeOutputStream
// special-cases a file target and creates a file output stream directly.
// We want to special-case a file source and create a file input stream,
// but we don't need to do this in the case of a file target.
nsCOMPtr<nsIFileChannel> fc(do_QueryInterface(aChannel));
nsCOMPtr<nsIFileURL> fu(do_QueryInterface(aFile));
if (fc && !fu) {
nsCOMPtr<nsIInputStream> fileInputStream, bufferedInputStream;
nsresult rv = NS_MaybeOpenChannelUsingOpen2(aChannel,
getter_AddRefs(fileInputStream));
NS_ENSURE_SUCCESS(rv, rv);
rv = NS_NewBufferedInputStream(getter_AddRefs(bufferedInputStream),
fileInputStream.forget(),
BUFFERED_OUTPUT_SIZE);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoCString contentType;
aChannel->GetContentType(contentType);
return StartUpload(bufferedInputStream, aFile, contentType);
}
// Mark save channel as throttleable.
nsCOMPtr<nsIClassOfService> cos(do_QueryInterface(aChannel));
if (cos) {
cos->AddClassFlags(nsIClassOfService::Throttleable);
}
// Read from the input channel
nsresult rv = NS_MaybeOpenChannelUsingAsyncOpen2(aChannel, this);
if (rv == NS_ERROR_NO_CONTENT)
{
// Assume this is a protocol such as mailto: which does not feed out
// data and just ignore it.
return NS_SUCCESS_DONT_FIXUP;
}
if (NS_FAILED(rv))
{
// Opening failed, but do we care?
if (mPersistFlags & PERSIST_FLAGS_FAIL_ON_BROKEN_LINKS)
{
SendErrorStatusChange(true, rv, aChannel, aFile);
EndDownload(NS_ERROR_FAILURE);
return NS_ERROR_FAILURE;
}
return NS_SUCCESS_DONT_FIXUP;
}
// Add the output transport to the output map with the channel as the key
nsCOMPtr<nsISupports> keyPtr = do_QueryInterface(aChannel);
mOutputMap.Put(keyPtr, new OutputData(aFile, mURI, aCalcFileExt));
return NS_OK;
}
nsresult
nsWebBrowserPersist::GetExtensionForContentType(const char16_t *aContentType, char16_t **aExt)
{
NS_ENSURE_ARG_POINTER(aContentType);
NS_ENSURE_ARG_POINTER(aExt);
*aExt = nullptr;
nsresult rv;
if (!mMIMEService)
{
mMIMEService = do_GetService(NS_MIMESERVICE_CONTRACTID, &rv);
NS_ENSURE_TRUE(mMIMEService, NS_ERROR_FAILURE);
}
nsAutoCString contentType;
LossyCopyUTF16toASCII(MakeStringSpan(aContentType), contentType);
nsAutoCString ext;
rv = mMIMEService->GetPrimaryExtension(contentType, EmptyCString(), ext);
if (NS_SUCCEEDED(rv))
{
*aExt = UTF8ToNewUnicode(ext);
NS_ENSURE_TRUE(*aExt, NS_ERROR_OUT_OF_MEMORY);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
nsresult
nsWebBrowserPersist::SaveDocumentDeferred(mozilla::UniquePtr<WalkData>&& aData)
{
nsresult rv =
SaveDocumentInternal(aData->mDocument, aData->mFile, aData->mDataPath);
if (NS_FAILED(rv)) {
SendErrorStatusChange(true, rv, nullptr, mURI);
EndDownload(rv);
}
return rv;
}
nsresult nsWebBrowserPersist::SaveDocumentInternal(
nsIWebBrowserPersistDocument *aDocument, nsIURI *aFile, nsIURI *aDataPath)
{
mURI = nullptr;
NS_ENSURE_ARG_POINTER(aDocument);
NS_ENSURE_ARG_POINTER(aFile);
nsresult rv = aDocument->SetPersistFlags(mPersistFlags);
NS_ENSURE_SUCCESS(rv, rv);
rv = aDocument->GetIsPrivate(&mIsPrivate);
NS_ENSURE_SUCCESS(rv, rv);
// See if we can get the local file representation of this URI
nsCOMPtr<nsIFile> localFile;
rv = GetLocalFileFromURI(aFile, getter_AddRefs(localFile));
nsCOMPtr<nsIFile> localDataPath;
if (NS_SUCCEEDED(rv) && aDataPath)
{
// See if we can get the local file representation of this URI
rv = GetLocalFileFromURI(aDataPath, getter_AddRefs(localDataPath));
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
}
// Persist the main document
rv = aDocument->GetCharacterSet(mCurrentCharset);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoCString uriSpec;
rv = aDocument->GetDocumentURI(uriSpec);
NS_ENSURE_SUCCESS(rv, rv);
rv = NS_NewURI(getter_AddRefs(mURI), uriSpec, mCurrentCharset.get());
NS_ENSURE_SUCCESS(rv, rv);
rv = aDocument->GetBaseURI(uriSpec);
NS_ENSURE_SUCCESS(rv, rv);
rv = NS_NewURI(getter_AddRefs(mCurrentBaseURI), uriSpec,
mCurrentCharset.get());
NS_ENSURE_SUCCESS(rv, rv);
// Does the caller want to fixup the referenced URIs and save those too?
if (aDataPath)
{
// Basic steps are these.
//
// 1. Iterate through the document (and subdocuments) building a list
// of unique URIs.
// 2. For each URI create an OutputData entry and open a channel to save
// it. As each URI is saved, discover the mime type and fix up the
// local filename with the correct extension.
// 3. Store the document in a list and wait for URI persistence to finish
// 4. After URI persistence completes save the list of documents,
// fixing it up as it goes out to file.
mCurrentDataPathIsRelative = false;
mCurrentDataPath = aDataPath;
mCurrentRelativePathToData = "";
mCurrentThingsToPersist = 0;
mTargetBaseURI = aFile;
// Determine if the specified data path is relative to the
// specified file, (e.g. c:\docs\htmldata is relative to
// c:\docs\myfile.htm, but not to d:\foo\data.
// Starting with the data dir work back through its parents
// checking if one of them matches the base directory.
if (localDataPath && localFile)
{
nsCOMPtr<nsIFile> baseDir;
localFile->GetParent(getter_AddRefs(baseDir));
nsAutoCString relativePathToData;
nsCOMPtr<nsIFile> dataDirParent;
dataDirParent = localDataPath;
while (dataDirParent)
{
bool sameDir = false;
dataDirParent->Equals(baseDir, &sameDir);
if (sameDir)
{
mCurrentRelativePathToData = relativePathToData;
mCurrentDataPathIsRelative = true;
break;
}
nsAutoString dirName;
dataDirParent->GetLeafName(dirName);
nsAutoCString newRelativePathToData;
newRelativePathToData = NS_ConvertUTF16toUTF8(dirName)
+ NS_LITERAL_CSTRING("/")
+ relativePathToData;
relativePathToData = newRelativePathToData;
nsCOMPtr<nsIFile> newDataDirParent;
rv = dataDirParent->GetParent(getter_AddRefs(newDataDirParent));
dataDirParent = newDataDirParent;
}
}
else
{
// generate a relative path if possible
nsCOMPtr<nsIURL> pathToBaseURL(do_QueryInterface(aFile));
if (pathToBaseURL)
{
nsAutoCString relativePath; // nsACString
if (NS_SUCCEEDED(pathToBaseURL->GetRelativeSpec(aDataPath, relativePath)))
{
mCurrentDataPathIsRelative = true;
mCurrentRelativePathToData = relativePath;
}
}
}
// Store the document in a list so when URI persistence is done and the
// filenames of saved URIs are known, the documents can be fixed up and
// saved
auto *docData = new DocData;
docData->mBaseURI = mCurrentBaseURI;
docData->mCharset = mCurrentCharset;
docData->mDocument = aDocument;
docData->mFile = aFile;
mDocList.AppendElement(docData);
// Walk the DOM gathering a list of externally referenced URIs in the uri map
nsCOMPtr<nsIWebBrowserPersistResourceVisitor> visit =
new OnWalk(this, aFile, localDataPath);
return aDocument->ReadResources(visit);
}
else
{
auto *docData = new DocData;
docData->mBaseURI = mCurrentBaseURI;
docData->mCharset = mCurrentCharset;
docData->mDocument = aDocument;
docData->mFile = aFile;
mDocList.AppendElement(docData);
// Not walking DOMs, so go directly to serialization.
SerializeNextFile();
return NS_OK;
}
}
NS_IMETHODIMP
nsWebBrowserPersist::OnWalk::VisitResource(nsIWebBrowserPersistDocument* aDoc,
const nsACString& aURI)
{
return mParent->StoreURI(nsAutoCString(aURI).get(), aDoc);
}
NS_IMETHODIMP
nsWebBrowserPersist::OnWalk::VisitDocument(nsIWebBrowserPersistDocument* aDoc,
nsIWebBrowserPersistDocument* aSubDoc)
{
URIData* data = nullptr;
nsAutoCString uriSpec;
nsresult rv = aSubDoc->GetDocumentURI(uriSpec);
NS_ENSURE_SUCCESS(rv, rv);
rv = mParent->StoreURI(uriSpec.get(), aDoc, false, &data);
NS_ENSURE_SUCCESS(rv, rv);
if (!data) {
// If the URI scheme isn't persistable, then don't persist.
return NS_OK;
}
data->mIsSubFrame = true;
return mParent->SaveSubframeContent(aSubDoc, aDoc, uriSpec, data);
}
NS_IMETHODIMP
nsWebBrowserPersist::OnWalk::EndVisit(nsIWebBrowserPersistDocument* aDoc,
nsresult aStatus)
{
if (NS_FAILED(aStatus)) {
mParent->SendErrorStatusChange(true, aStatus, nullptr, mFile);
mParent->EndDownload(aStatus);
return aStatus;
}
mParent->FinishSaveDocumentInternal(mFile, mDataPath);
return NS_OK;
}
void
nsWebBrowserPersist::FinishSaveDocumentInternal(nsIURI* aFile,
nsIFile* aDataPath)
{
// If there are things to persist, create a directory to hold them
if (mCurrentThingsToPersist > 0) {
if (aDataPath) {
bool exists = false;
bool haveDir = false;
aDataPath->Exists(&exists);
if (exists) {
aDataPath->IsDirectory(&haveDir);
}
if (!haveDir) {
nsresult rv =
aDataPath->Create(nsIFile::DIRECTORY_TYPE, 0755);
if (NS_SUCCEEDED(rv)) {
haveDir = true;
} else {
SendErrorStatusChange(false, rv, nullptr, aFile);
}
}
if (!haveDir) {
EndDownload(NS_ERROR_FAILURE);
return;
}
if (mPersistFlags & PERSIST_FLAGS_CLEANUP_ON_FAILURE) {
// Add to list of things to delete later if all goes wrong
auto *cleanupData = new CleanupData;
cleanupData->mFile = aDataPath;
cleanupData->mIsDirectory = true;
mCleanupList.AppendElement(cleanupData);
}
}
}
if (mWalkStack.Length() > 0) {
mozilla::UniquePtr<WalkData> toWalk;
mWalkStack.LastElement().swap(toWalk);
mWalkStack.TruncateLength(mWalkStack.Length() - 1);
// Bounce this off the event loop to avoid stack overflow.
typedef StoreCopyPassByRRef<decltype(toWalk)> WalkStorage;
auto saveMethod = &nsWebBrowserPersist::SaveDocumentDeferred;
nsCOMPtr<nsIRunnable> saveLater = NewRunnableMethod<WalkStorage>(
"nsWebBrowserPersist::FinishSaveDocumentInternal",
this,
saveMethod,
std::move(toWalk));
NS_DispatchToCurrentThread(saveLater);
} else {
// Done walking DOMs; on to the serialization phase.
SerializeNextFile();
}
}
void nsWebBrowserPersist::Cleanup()
{
mURIMap.Clear();
for (auto iter = mOutputMap.Iter(); !iter.Done(); iter.Next()) {
nsCOMPtr<nsIChannel> channel = do_QueryInterface(iter.Key());
if (channel) {
channel->Cancel(NS_BINDING_ABORTED);
}
}
mOutputMap.Clear();
for (auto iter = mUploadList.Iter(); !iter.Done(); iter.Next()) {
nsCOMPtr<nsIChannel> channel = do_QueryInterface(iter.Key());
if (channel) {
channel->Cancel(NS_BINDING_ABORTED);
}
}
mUploadList.Clear();
uint32_t i;
for (i = 0; i < mDocList.Length(); i++) {
DocData *docData = mDocList.ElementAt(i);
delete docData;
}
mDocList.Clear();
for (i = 0; i < mCleanupList.Length(); i++) {
CleanupData *cleanupData = mCleanupList.ElementAt(i);
delete cleanupData;
}
mCleanupList.Clear();
mFilenameList.Clear();
}
void nsWebBrowserPersist::CleanupLocalFiles()
{
// Two passes, the first pass cleans up files, the second pass tests
// for and then deletes empty directories. Directories that are not
// empty after the first pass must contain files from something else
// and are not deleted.
int pass;
for (pass = 0; pass < 2; pass++)
{
uint32_t i;
for (i = 0; i < mCleanupList.Length(); i++)
{
CleanupData *cleanupData = mCleanupList.ElementAt(i);
nsCOMPtr<nsIFile> file = cleanupData->mFile;
// Test if the dir / file exists (something in an earlier loop
// may have already removed it)
bool exists = false;
file->Exists(&exists);
if (!exists)
continue;
// Test if the file has changed in between creation and deletion
// in some way that means it should be ignored
bool isDirectory = false;
file->IsDirectory(&isDirectory);
if (isDirectory != cleanupData->mIsDirectory)
continue; // A file has become a dir or vice versa !
if (pass == 0 && !isDirectory)
{
file->Remove(false);
}
else if (pass == 1 && isDirectory) // Directory
{
// Directories are more complicated. Enumerate through
// children looking for files. Any files created by the
// persist object would have been deleted by the first
// pass so if there are any there at this stage, the dir
// cannot be deleted because it has someone else's files
// in it. Empty child dirs are deleted but they must be
// recursed through to ensure they are actually empty.
bool isEmptyDirectory = true;
nsCOMArray<nsIDirectoryEnumerator> dirStack;
int32_t stackSize = 0;
// Push the top level enum onto the stack
nsCOMPtr<nsIDirectoryEnumerator> pos;
if (NS_SUCCEEDED(file->GetDirectoryEntries(getter_AddRefs(pos))))
dirStack.AppendObject(pos);
while (isEmptyDirectory && (stackSize = dirStack.Count()))
{
// Pop the last element
nsCOMPtr<nsIDirectoryEnumerator> curPos;
curPos = dirStack[stackSize-1];
dirStack.RemoveObjectAt(stackSize - 1);
nsCOMPtr<nsIFile> child;
if (NS_FAILED(curPos->GetNextFile(getter_AddRefs(child))) || !child)
{
continue;
}
bool childIsSymlink = false;
child->IsSymlink(&childIsSymlink);
bool childIsDir = false;
child->IsDirectory(&childIsDir);
if (!childIsDir || childIsSymlink)
{
// Some kind of file or symlink which means dir
// is not empty so just drop out.
isEmptyDirectory = false;
break;
}
// Push parent enumerator followed by child enumerator
nsCOMPtr<nsIDirectoryEnumerator> childPos;
child->GetDirectoryEntries(getter_AddRefs(childPos));
dirStack.AppendObject(curPos);
if (childPos)
dirStack.AppendObject(childPos);
}
dirStack.Clear();
// If after all that walking the dir is deemed empty, delete it
if (isEmptyDirectory)
{
file->Remove(true);
}
}
}
}
}
nsresult
nsWebBrowserPersist::CalculateUniqueFilename(nsIURI *aURI, nsCOMPtr<nsIURI>& aOutURI)
{
nsCOMPtr<nsIURL> url(do_QueryInterface(aURI));
NS_ENSURE_TRUE(url, NS_ERROR_FAILURE);
bool nameHasChanged = false;
nsresult rv;
// Get the old filename
nsAutoCString filename;
rv = url->GetFileName(filename);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
nsAutoCString directory;
rv = url->GetDirectory(directory);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
// Split the filename into a base and an extension.
// e.g. "foo.html" becomes "foo" & ".html"
//
// The nsIURL methods GetFileBaseName & GetFileExtension don't
// preserve the dot whereas this code does to save some effort
// later when everything is put back together.
int32_t lastDot = filename.RFind(".");
nsAutoCString base;
nsAutoCString ext;
if (lastDot >= 0)
{
filename.Mid(base, 0, lastDot);
filename.Mid(ext, lastDot, filename.Length() - lastDot); // includes dot
}
else
{
// filename contains no dot
base = filename;
}
// Test if the filename is longer than allowed by the OS
int32_t needToChop = filename.Length() - kDefaultMaxFilenameLength;
if (needToChop > 0)
{
// Truncate the base first and then the ext if necessary
if (base.Length() > (uint32_t) needToChop)
{
base.Truncate(base.Length() - needToChop);
}
else
{
needToChop -= base.Length() - 1;
base.Truncate(1);
if (ext.Length() > (uint32_t) needToChop)
{
ext.Truncate(ext.Length() - needToChop);
}
else
{
ext.Truncate(0);
}
// If kDefaultMaxFilenameLength were 1 we'd be in trouble here,
// but that won't happen because it will be set to a sensible
// value.
}
filename.Assign(base);
filename.Append(ext);
nameHasChanged = true;
}
// Ensure the filename is unique
// Create a filename if it's empty, or if the filename / datapath is
// already taken by another URI and create an alternate name.
if (base.IsEmpty() || !mFilenameList.IsEmpty())
{
nsAutoCString tmpPath;
nsAutoCString tmpBase;
uint32_t duplicateCounter = 1;
while (true)
{
// Make a file name,
// Foo become foo_001, foo_002, etc.
// Empty files become _001, _002 etc.
if (base.IsEmpty() || duplicateCounter > 1)
{
SmprintfPointer tmp = mozilla::Smprintf("_%03d", duplicateCounter);
NS_ENSURE_TRUE(tmp, NS_ERROR_OUT_OF_MEMORY);
if (filename.Length() < kDefaultMaxFilenameLength - 4)
{
tmpBase = base;
}
else
{
base.Mid(tmpBase, 0, base.Length() - 4);
}
tmpBase.Append(tmp.get());
}
else
{
tmpBase = base;
}
tmpPath.Assign(directory);
tmpPath.Append(tmpBase);
tmpPath.Append(ext);
// Test if the name is a duplicate
if (!mFilenameList.Contains(tmpPath))
{
if (!base.Equals(tmpBase))
{
filename.Assign(tmpBase);
filename.Append(ext);
nameHasChanged = true;
}
break;
}
duplicateCounter++;
}
}
// Add name to list of those already used
nsAutoCString newFilepath(directory);
newFilepath.Append(filename);
mFilenameList.AppendElement(newFilepath);
// Update the uri accordingly if the filename actually changed
if (nameHasChanged)
{
// Final sanity test
if (filename.Length() > kDefaultMaxFilenameLength)
{
NS_WARNING("Filename wasn't truncated less than the max file length - how can that be?");
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIFile> localFile;
GetLocalFileFromURI(aURI, getter_AddRefs(localFile));
if (localFile)
{
nsAutoString filenameAsUnichar;
CopyASCIItoUTF16(filename, filenameAsUnichar);
localFile->SetLeafName(filenameAsUnichar);
// Resync the URI with the file after the extension has been appended
return NS_MutateURI(aURI)
.Apply(NS_MutatorMethod(&nsIFileURLMutator::SetFile,
localFile))
.Finalize(aOutURI);
}
return NS_MutateURI(url)
.Apply(NS_MutatorMethod(&nsIURLMutator::SetFileName,
filename, nullptr))
.Finalize(aOutURI);
}
// TODO (:valentin) This method should always clone aURI
aOutURI = aURI;
return NS_OK;
}
nsresult
nsWebBrowserPersist::MakeFilenameFromURI(nsIURI *aURI, nsString &aFilename)
{
// Try to get filename from the URI.
nsAutoString fileName;
// Get a suggested file name from the URL but strip it of characters
// likely to cause the name to be illegal.
nsCOMPtr<nsIURL> url(do_QueryInterface(aURI));
if (url)
{
nsAutoCString nameFromURL;
url->GetFileName(nameFromURL);
if (mPersistFlags & PERSIST_FLAGS_DONT_CHANGE_FILENAMES)
{
CopyASCIItoUTF16(NS_UnescapeURL(nameFromURL), fileName);
aFilename = fileName;
return NS_OK;
}
if (!nameFromURL.IsEmpty())
{
// Unescape the file name (GetFileName escapes it)
NS_UnescapeURL(nameFromURL);
uint32_t nameLength = 0;
const char *p = nameFromURL.get();
for (;*p && *p != ';' && *p != '?' && *p != '#' && *p != '.'
;p++)
{
if (IsAsciiAlpha(*p) || IsAsciiDigit(*p)
|| *p == '.' || *p == '-' || *p == '_' || (*p == ' '))
{
fileName.Append(char16_t(*p));
if (++nameLength == kDefaultMaxFilenameLength)
{
// Note:
// There is no point going any further since it will be
// truncated in CalculateUniqueFilename anyway.
// More importantly, certain implementations of
// nsIFile (e.g. the Mac impl) might truncate
// names in undesirable ways, such as truncating from
// the middle, inserting ellipsis and so on.
break;
}
}
}
}
}
// Empty filenames can confuse the local file object later
// when it attempts to set the leaf name in CalculateUniqueFilename
// for duplicates and ends up replacing the parent dir. To avoid
// the problem, all filenames are made at least one character long.
if (fileName.IsEmpty())
{
fileName.Append(char16_t('a')); // 'a' is for arbitrary
}
aFilename = fileName;
return NS_OK;
}
nsresult
nsWebBrowserPersist::CalculateAndAppendFileExt(nsIURI *aURI,
nsIChannel *aChannel,
nsIURI *aOriginalURIWithExtension,
nsCOMPtr<nsIURI>& aOutURI)
{
nsresult rv = NS_OK;
if (!mMIMEService)
{
mMIMEService = do_GetService(NS_MIMESERVICE_CONTRACTID, &rv);
NS_ENSURE_TRUE(mMIMEService, NS_ERROR_FAILURE);
}
nsAutoCString contentType;
// Get the content type from the channel
aChannel->GetContentType(contentType);
// Get the content type from the MIME service
if (contentType.IsEmpty())
{
nsCOMPtr<nsIURI> uri;
aChannel->GetOriginalURI(getter_AddRefs(uri));
mMIMEService->GetTypeFromURI(uri, contentType);
}
// Append the extension onto the file
if (!contentType.IsEmpty())
{
nsCOMPtr<nsIMIMEInfo> mimeInfo;
mMIMEService->GetFromTypeAndExtension(
contentType, EmptyCString(), getter_AddRefs(mimeInfo));
nsCOMPtr<nsIFile> localFile;
GetLocalFileFromURI(aURI, getter_AddRefs(localFile));
if (mimeInfo)
{
nsCOMPtr<nsIURL> url(do_QueryInterface(aURI));
NS_ENSURE_TRUE(url, NS_ERROR_FAILURE);
nsAutoCString newFileName;
url->GetFileName(newFileName);
// Test if the current extension is current for the mime type
bool hasExtension = false;
int32_t ext = newFileName.RFind(".");
if (ext != -1)
{
mimeInfo->ExtensionExists(Substring(newFileName, ext + 1), &hasExtension);
}
// Append the mime file extension
nsAutoCString fileExt;
if (!hasExtension)
{
// Test if previous extension is acceptable
nsCOMPtr<nsIURL> oldurl(do_QueryInterface(aOriginalURIWithExtension));
NS_ENSURE_TRUE(oldurl, NS_ERROR_FAILURE);
oldurl->GetFileExtension(fileExt);
bool useOldExt = false;
if (!fileExt.IsEmpty())
{
mimeInfo->ExtensionExists(fileExt, &useOldExt);
}
// can't use old extension so use primary extension
if (!useOldExt)
{
mimeInfo->GetPrimaryExtension(fileExt);
}
if (!fileExt.IsEmpty())
{
uint32_t newLength = newFileName.Length() + fileExt.Length() + 1;
if (newLength > kDefaultMaxFilenameLength)
{
if (fileExt.Length() > kDefaultMaxFilenameLength/2)
fileExt.Truncate(kDefaultMaxFilenameLength/2);
uint32_t diff = kDefaultMaxFilenameLength - 1 -
fileExt.Length();
if (newFileName.Length() > diff)
newFileName.Truncate(diff);
}
newFileName.Append('.');
newFileName.Append(fileExt);
}
if (localFile)
{
localFile->SetLeafName(NS_ConvertUTF8toUTF16(newFileName));
// Resync the URI with the file after the extension has been appended
return NS_MutateURI(url)
.Apply(NS_MutatorMethod(&nsIFileURLMutator::SetFile,
localFile))
.Finalize(aOutURI);
}
return NS_MutateURI(url)
.Apply(NS_MutatorMethod(&nsIURLMutator::SetFileName,
newFileName, nullptr))
.Finalize(aOutURI);
}
}
}
// TODO (:valentin) This method should always clone aURI
aOutURI = aURI;
return NS_OK;
}
nsresult
nsWebBrowserPersist::MakeOutputStream(
nsIURI *aURI, nsIOutputStream **aOutputStream)
{
nsresult rv;
nsCOMPtr<nsIFile> localFile;
GetLocalFileFromURI(aURI, getter_AddRefs(localFile));
if (localFile)
rv = MakeOutputStreamFromFile(localFile, aOutputStream);
else
rv = MakeOutputStreamFromURI(aURI, aOutputStream);
return rv;
}
nsresult
nsWebBrowserPersist::MakeOutputStreamFromFile(
nsIFile *aFile, nsIOutputStream **aOutputStream)
{
nsresult rv = NS_OK;
nsCOMPtr<nsIFileOutputStream> fileOutputStream =
do_CreateInstance(NS_LOCALFILEOUTPUTSTREAM_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
// XXX brade: get the right flags here!
int32_t ioFlags = -1;
if (mPersistFlags & nsIWebBrowserPersist::PERSIST_FLAGS_APPEND_TO_FILE)
ioFlags = PR_APPEND | PR_CREATE_FILE | PR_WRONLY;
rv = fileOutputStream->Init(aFile, ioFlags, -1, 0);
NS_ENSURE_SUCCESS(rv, rv);
rv = NS_NewBufferedOutputStream(aOutputStream, fileOutputStream.forget(),
BUFFERED_OUTPUT_SIZE);
NS_ENSURE_SUCCESS(rv, rv);
if (mPersistFlags & PERSIST_FLAGS_CLEANUP_ON_FAILURE)
{
// Add to cleanup list in event of failure
auto *cleanupData = new CleanupData;
if (!cleanupData) {
NS_RELEASE(*aOutputStream);
return NS_ERROR_OUT_OF_MEMORY;
}
cleanupData->mFile = aFile;
cleanupData->mIsDirectory = false;
mCleanupList.AppendElement(cleanupData);
}
return NS_OK;
}
nsresult
nsWebBrowserPersist::MakeOutputStreamFromURI(
nsIURI *aURI, nsIOutputStream **aOutputStream)
{
uint32_t segsize = 8192;
uint32_t maxsize = uint32_t(-1);
nsCOMPtr<nsIStorageStream> storStream;
nsresult rv = NS_NewStorageStream(segsize, maxsize, getter_AddRefs(storStream));
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_SUCCESS(CallQueryInterface(storStream, aOutputStream), NS_ERROR_FAILURE);
return NS_OK;
}
void
nsWebBrowserPersist::FinishDownload()
{
EndDownload(NS_OK);
}
void
nsWebBrowserPersist::EndDownload(nsresult aResult)
{
// Store the error code in the result if it is an error
if (NS_SUCCEEDED(mPersistResult) && NS_FAILED(aResult))
{
mPersistResult = aResult;
}
// mCompleted needs to be set before issuing the stop notification.
// (Bug 1224437)
mCompleted = true;
// State stop notification
if (mProgressListener) {
mProgressListener->OnStateChange(nullptr, nullptr,
nsIWebProgressListener::STATE_STOP
| nsIWebProgressListener::STATE_IS_NETWORK, mPersistResult);
}
// Do file cleanup if required
if (NS_FAILED(aResult) && (mPersistFlags & PERSIST_FLAGS_CLEANUP_ON_FAILURE))
{
CleanupLocalFiles();
}
// Cleanup the channels
Cleanup();
mProgressListener = nullptr;
mProgressListener2 = nullptr;
mEventSink = nullptr;
}
nsresult
nsWebBrowserPersist::FixRedirectedChannelEntry(nsIChannel *aNewChannel)
{
NS_ENSURE_ARG_POINTER(aNewChannel);
// Iterate through existing open channels looking for one with a URI
// matching the one specified.
nsCOMPtr<nsIURI> originalURI;
aNewChannel->GetOriginalURI(getter_AddRefs(originalURI));
nsISupports* matchingKey = nullptr;
for (auto iter = mOutputMap.Iter(); !iter.Done(); iter.Next()) {
nsISupports* key = iter.Key();
nsCOMPtr<nsIChannel> thisChannel = do_QueryInterface(key);
nsCOMPtr<nsIURI> thisURI;
thisChannel->GetOriginalURI(getter_AddRefs(thisURI));
// Compare this channel's URI to the one passed in.
bool matchingURI = false;
thisURI->Equals(originalURI, &matchingURI);
if (matchingURI) {
matchingKey = key;
break;
}
}
if (matchingKey) {
// If a match was found, remove the data entry with the old channel
// key and re-add it with the new channel key.
nsAutoPtr<OutputData> outputData;
mOutputMap.Remove(matchingKey, &outputData);
NS_ENSURE_TRUE(outputData, NS_ERROR_FAILURE);
// Store data again with new channel unless told to ignore redirects.
if (!(mPersistFlags & PERSIST_FLAGS_IGNORE_REDIRECTED_DATA)) {
nsCOMPtr<nsISupports> keyPtr = do_QueryInterface(aNewChannel);
mOutputMap.Put(keyPtr, outputData.forget());
}
}
return NS_OK;
}
void
nsWebBrowserPersist::CalcTotalProgress()
{
mTotalCurrentProgress = 0;
mTotalMaxProgress = 0;
if (mOutputMap.Count() > 0) {
// Total up the progress of each output stream
for (auto iter = mOutputMap.Iter(); !iter.Done(); iter.Next()) {
// Only count toward total progress if destination file is local.
OutputData* data = iter.UserData();
nsCOMPtr<nsIFileURL> fileURL = do_QueryInterface(data->mFile);
if (fileURL) {
mTotalCurrentProgress += data->mSelfProgress;
mTotalMaxProgress += data->mSelfProgressMax;
}
}
}
if (mUploadList.Count() > 0) {
// Total up the progress of each upload
for (auto iter = mUploadList.Iter(); !iter.Done(); iter.Next()) {
UploadData* data = iter.UserData();
if (data) {
mTotalCurrentProgress += data->mSelfProgress;
mTotalMaxProgress += data->mSelfProgressMax;
}
}
}
// XXX this code seems pretty bogus and pointless
if (mTotalCurrentProgress == 0 && mTotalMaxProgress == 0)
{
// No output streams so we must be complete
mTotalCurrentProgress = 10000;
mTotalMaxProgress = 10000;
}
}
nsresult
nsWebBrowserPersist::StoreURI(
const char *aURI, nsIWebBrowserPersistDocument *aDoc,
bool aNeedsPersisting, URIData **aData)
{
NS_ENSURE_ARG_POINTER(aURI);
nsCOMPtr<nsIURI> uri;
nsresult rv = NS_NewURI(getter_AddRefs(uri),
nsDependentCString(aURI),
mCurrentCharset.get(),
mCurrentBaseURI);
NS_ENSURE_SUCCESS(rv, rv);
return StoreURI(uri, aDoc, aNeedsPersisting, aData);
}
nsresult
nsWebBrowserPersist::StoreURI(
nsIURI *aURI, nsIWebBrowserPersistDocument *aDoc,
bool aNeedsPersisting, URIData **aData)
{
NS_ENSURE_ARG_POINTER(aURI);
if (aData)
{
*aData = nullptr;
}
// Test if this URI should be persisted. By default
// we should assume the URI is persistable.
bool doNotPersistURI;
nsresult rv = NS_URIChainHasFlags(aURI,
nsIProtocolHandler::URI_NON_PERSISTABLE,
&doNotPersistURI);
if (NS_FAILED(rv))
{
doNotPersistURI = false;
}
if (doNotPersistURI)
{
return NS_OK;
}
URIData *data = nullptr;
MakeAndStoreLocalFilenameInURIMap(aURI, aDoc, aNeedsPersisting, &data);
if (aData)
{
*aData = data;
}
return NS_OK;
}
nsresult
nsWebBrowserPersist::URIData::GetLocalURI(nsIURI *targetBaseURI, nsCString& aSpecOut)
{
aSpecOut.SetIsVoid(true);
if (!mNeedsFixup) {
return NS_OK;
}
nsresult rv;
nsCOMPtr<nsIURI> fileAsURI;
if (mFile) {
fileAsURI = mFile;
} else {
fileAsURI = mDataPath;
rv = AppendPathToURI(fileAsURI, mFilename, fileAsURI);
NS_ENSURE_SUCCESS(rv, rv);
}
// remove username/password if present
Unused << NS_MutateURI(fileAsURI)
.SetUserPass(EmptyCString())
.Finalize(fileAsURI);
// reset node attribute
// Use relative or absolute links
if (mDataPathIsRelative) {
bool isEqual = false;
if (NS_SUCCEEDED(mRelativeDocumentURI->Equals(targetBaseURI, &isEqual)) && isEqual) {
nsCOMPtr<nsIURL> url(do_QueryInterface(fileAsURI));
if (!url) {
return NS_ERROR_FAILURE;
}
nsAutoCString filename;
url->GetFileName(filename);
nsAutoCString rawPathURL(mRelativePathToData);
rawPathURL.Append(filename);
rv = NS_EscapeURL(rawPathURL, esc_FilePath, aSpecOut, fallible);
NS_ENSURE_SUCCESS(rv, rv);
} else {
nsAutoCString rawPathURL;
nsCOMPtr<nsIFile> dataFile;
rv = GetLocalFileFromURI(mFile, getter_AddRefs(dataFile));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIFile> docFile;
rv = GetLocalFileFromURI(targetBaseURI, getter_AddRefs(docFile));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIFile> parentDir;
rv = docFile->GetParent(getter_AddRefs(parentDir));
NS_ENSURE_SUCCESS(rv, rv);
rv = dataFile->GetRelativePath(parentDir, rawPathURL);
NS_ENSURE_SUCCESS(rv, rv);
rv = NS_EscapeURL(rawPathURL, esc_FilePath, aSpecOut, fallible);
NS_ENSURE_SUCCESS(rv, rv);
}
} else {
fileAsURI->GetSpec(aSpecOut);
}
if (mIsSubFrame) {
AppendUTF16toUTF8(mSubFrameExt, aSpecOut);
}
return NS_OK;
}
bool
nsWebBrowserPersist::DocumentEncoderExists(const char *aContentType)
{
// Check if there is an encoder for the desired content type.
nsAutoCString contractID(NS_DOC_ENCODER_CONTRACTID_BASE);
contractID.Append(aContentType);
nsCOMPtr<nsIComponentRegistrar> registrar;
NS_GetComponentRegistrar(getter_AddRefs(registrar));
if (registrar)
{
bool result;
nsresult rv = registrar->IsContractIDRegistered(contractID.get(),
&result);
if (NS_SUCCEEDED(rv) && result)
{
return true;
}
}
return false;
}
nsresult
nsWebBrowserPersist::SaveSubframeContent(
nsIWebBrowserPersistDocument *aFrameContent,
nsIWebBrowserPersistDocument *aParentDocument,
const nsCString& aURISpec,
URIData *aData)
{
NS_ENSURE_ARG_POINTER(aData);
// Extract the content type for the frame's contents.
nsAutoCString contentType;
nsresult rv = aFrameContent->GetContentType(contentType);
NS_ENSURE_SUCCESS(rv, rv);
nsString ext;
GetExtensionForContentType(NS_ConvertASCIItoUTF16(contentType).get(),
getter_Copies(ext));
// We must always have an extension so we will try to re-assign
// the original extension if GetExtensionForContentType fails.
if (ext.IsEmpty()) {
nsCOMPtr<nsIURI> docURI;
rv = NS_NewURI(getter_AddRefs(docURI), aURISpec, mCurrentCharset.get());
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIURL> url(do_QueryInterface(docURI, &rv));
nsAutoCString extension;
if (NS_SUCCEEDED(rv)) {
url->GetFileExtension(extension);
} else {
extension.AssignLiteral("htm");
}
aData->mSubFrameExt.Assign(char16_t('.'));
AppendUTF8toUTF16(extension, aData->mSubFrameExt);
} else {
aData->mSubFrameExt.Assign(char16_t('.'));
aData->mSubFrameExt.Append(ext);
}
nsString filenameWithExt = aData->mFilename;
filenameWithExt.Append(aData->mSubFrameExt);
// Work out the path for the subframe
nsCOMPtr<nsIURI> frameURI = mCurrentDataPath;
rv = AppendPathToURI(frameURI, filenameWithExt, frameURI);
NS_ENSURE_SUCCESS(rv, rv);
// Work out the path for the subframe data
nsCOMPtr<nsIURI> frameDataURI = mCurrentDataPath;
nsAutoString newFrameDataPath(aData->mFilename);
// Append _data
newFrameDataPath.AppendLiteral("_data");
rv = AppendPathToURI(frameDataURI, newFrameDataPath, frameDataURI);
NS_ENSURE_SUCCESS(rv, rv);
// Make frame document & data path conformant and unique
nsCOMPtr<nsIURI> out;
rv = CalculateUniqueFilename(frameURI, out);
NS_ENSURE_SUCCESS(rv, rv);
frameURI = out;
rv = CalculateUniqueFilename(frameDataURI, out);
NS_ENSURE_SUCCESS(rv, rv);
frameDataURI = out;
mCurrentThingsToPersist++;
// We shouldn't use SaveDocumentInternal for the contents
// of frames that are not documents, e.g. images.
if (DocumentEncoderExists(contentType.get())) {
auto toWalk = mozilla::MakeUnique<WalkData>();
toWalk->mDocument = aFrameContent;
toWalk->mFile = frameURI;
toWalk->mDataPath = frameDataURI;
mWalkStack.AppendElement(std::move(toWalk));
} else {
rv = StoreURI(aURISpec.get(), aParentDocument);
}
NS_ENSURE_SUCCESS(rv, rv);
// Store the updated uri to the frame
aData->mFile = frameURI;
aData->mSubFrameExt.Truncate(); // we already put this in frameURI
return NS_OK;
}
nsresult
nsWebBrowserPersist::CreateChannelFromURI(nsIURI *aURI, nsIChannel **aChannel)
{
nsresult rv = NS_OK;
*aChannel = nullptr;
rv = NS_NewChannel(aChannel,
aURI,
nsContentUtils::GetSystemPrincipal(),
nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL,
nsIContentPolicy::TYPE_OTHER);
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_ARG_POINTER(*aChannel);
rv = (*aChannel)->SetNotificationCallbacks(static_cast<nsIInterfaceRequestor*>(this));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
// we store the current location as the key (absolutized version of domnode's attribute's value)
nsresult
nsWebBrowserPersist::MakeAndStoreLocalFilenameInURIMap(
nsIURI *aURI, nsIWebBrowserPersistDocument *aDoc, bool aNeedsPersisting, URIData **aData)
{
NS_ENSURE_ARG_POINTER(aURI);
nsAutoCString spec;
nsresult rv = aURI->GetSpec(spec);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
// Create a sensibly named filename for the URI and store in the URI map
URIData *data;
if (mURIMap.Get(spec, &data))
{
if (aNeedsPersisting)
{
data->mNeedsPersisting = true;
}
if (aData)
{
*aData = data;
}
return NS_OK;
}
// Create a unique file name for the uri
nsString filename;
rv = MakeFilenameFromURI(aURI, filename);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE);
// Store the file name
data = new URIData;
NS_ENSURE_TRUE(data, NS_ERROR_OUT_OF_MEMORY);
data->mNeedsPersisting = aNeedsPersisting;
data->mNeedsFixup = true;
data->mFilename = filename;
data->mSaved = false;
data->mIsSubFrame = false;
data->mDataPath = mCurrentDataPath;
data->mDataPathIsRelative = mCurrentDataPathIsRelative;
data->mRelativePathToData = mCurrentRelativePathToData;
data->mRelativeDocumentURI = mTargetBaseURI;
data->mCharset = mCurrentCharset;
aDoc->GetPrincipal(getter_AddRefs(data->mTriggeringPrincipal));
if (aNeedsPersisting)
mCurrentThingsToPersist++;
mURIMap.Put(spec, data);
if (aData)
{
*aData = data;
}
return NS_OK;
}
// Decide if we need to apply conversion to the passed channel.
void nsWebBrowserPersist::SetApplyConversionIfNeeded(nsIChannel *aChannel)
{
nsresult rv = NS_OK;
nsCOMPtr<nsIEncodedChannel> encChannel = do_QueryInterface(aChannel, &rv);
if (NS_FAILED(rv))
return;
// Set the default conversion preference:
encChannel->SetApplyConversion(false);
nsCOMPtr<nsIURI> thisURI;
aChannel->GetURI(getter_AddRefs(thisURI));
nsCOMPtr<nsIURL> sourceURL(do_QueryInterface(thisURI));
if (!sourceURL)
return;
nsAutoCString extension;
sourceURL->GetFileExtension(extension);
nsCOMPtr<nsIUTF8StringEnumerator> encEnum;
encChannel->GetContentEncodings(getter_AddRefs(encEnum));
if (!encEnum)
return;
nsCOMPtr<nsIExternalHelperAppService> helperAppService =
do_GetService(NS_EXTERNALHELPERAPPSERVICE_CONTRACTID, &rv);
if (NS_FAILED(rv))
return;
bool hasMore;
rv = encEnum->HasMore(&hasMore);
if (NS_SUCCEEDED(rv) && hasMore)
{
nsAutoCString encType;
rv = encEnum->GetNext(encType);
if (NS_SUCCEEDED(rv))
{
bool applyConversion = false;
rv = helperAppService->ApplyDecodingForExtension(extension, encType,
&applyConversion);
if (NS_SUCCEEDED(rv))
encChannel->SetApplyConversion(applyConversion);
}
}
}
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