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gecko/modules/libjar/nsJARChannel.cpp
Shian-Yow Wu 8d3136cdcc Bug 945152 - Part 3-1: New libjar APIs. r=aklotz
2014-05-16 13:34:43 +08:00

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set sw=4 ts=8 et tw=80 : */
/* 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 "nsJAR.h"
#include "nsJARChannel.h"
#include "nsJARProtocolHandler.h"
#include "nsMimeTypes.h"
#include "nsNetUtil.h"
#include "nsEscape.h"
#include "nsIPrefService.h"
#include "nsIPrefBranch.h"
#include "nsIViewSourceChannel.h"
#include "nsChannelProperties.h"
#include "nsIScriptSecurityManager.h"
#include "nsIPrincipal.h"
#include "nsIFileURL.h"
#include "mozilla/Preferences.h"
#include "mozilla/net/RemoteOpenFileChild.h"
#include "nsITabChild.h"
using namespace mozilla;
using namespace mozilla::net;
static NS_DEFINE_CID(kZipReaderCID, NS_ZIPREADER_CID);
// the entry for a directory will either be empty (in the case of the
// top-level directory) or will end with a slash
#define ENTRY_IS_DIRECTORY(_entry) \
((_entry).IsEmpty() || '/' == (_entry).Last())
//-----------------------------------------------------------------------------
// Ignore any LOG macro that we inherit from arbitrary headers. (We define our
// own LOG macro below.)
#ifdef LOG
#undef LOG
#endif
#if defined(PR_LOGGING)
//
// set NSPR_LOG_MODULES=nsJarProtocol:5
//
static PRLogModuleInfo *gJarProtocolLog = nullptr;
#endif
// If you ever want to define PR_FORCE_LOGGING in this file, see bug 545995
#define LOG(args) PR_LOG(gJarProtocolLog, PR_LOG_DEBUG, args)
#define LOG_ENABLED() PR_LOG_TEST(gJarProtocolLog, 4)
//-----------------------------------------------------------------------------
// nsJARInputThunk
//
// this class allows us to do some extra work on the stream transport thread.
//-----------------------------------------------------------------------------
class nsJARInputThunk : public nsIInputStream
{
public:
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIINPUTSTREAM
nsJARInputThunk(nsIZipReader *zipReader,
nsIURI* fullJarURI,
const nsACString &jarEntry,
bool usingJarCache)
: mUsingJarCache(usingJarCache)
, mJarReader(zipReader)
, mJarEntry(jarEntry)
, mContentLength(-1)
{
if (fullJarURI) {
#ifdef DEBUG
nsresult rv =
#endif
fullJarURI->GetAsciiSpec(mJarDirSpec);
NS_ASSERTION(NS_SUCCEEDED(rv), "this shouldn't fail");
}
}
virtual ~nsJARInputThunk()
{
Close();
}
int64_t GetContentLength()
{
return mContentLength;
}
nsresult Init();
private:
bool mUsingJarCache;
nsCOMPtr<nsIZipReader> mJarReader;
nsCString mJarDirSpec;
nsCOMPtr<nsIInputStream> mJarStream;
nsCString mJarEntry;
int64_t mContentLength;
};
NS_IMPL_ISUPPORTS(nsJARInputThunk, nsIInputStream)
nsresult
nsJARInputThunk::Init()
{
nsresult rv;
if (ENTRY_IS_DIRECTORY(mJarEntry)) {
// A directory stream also needs the Spec of the FullJarURI
// because is included in the stream data itself.
NS_ENSURE_STATE(!mJarDirSpec.IsEmpty());
rv = mJarReader->GetInputStreamWithSpec(mJarDirSpec,
mJarEntry,
getter_AddRefs(mJarStream));
}
else {
rv = mJarReader->GetInputStream(mJarEntry,
getter_AddRefs(mJarStream));
}
if (NS_FAILED(rv)) {
// convert to the proper result if the entry wasn't found
// so that error pages work
if (rv == NS_ERROR_FILE_TARGET_DOES_NOT_EXIST)
rv = NS_ERROR_FILE_NOT_FOUND;
return rv;
}
// ask the JarStream for the content length
uint64_t avail;
rv = mJarStream->Available((uint64_t *) &avail);
if (NS_FAILED(rv)) return rv;
mContentLength = avail < INT64_MAX ? (int64_t) avail : -1;
return NS_OK;
}
NS_IMETHODIMP
nsJARInputThunk::Close()
{
nsresult rv = NS_OK;
if (mJarStream)
rv = mJarStream->Close();
if (!mUsingJarCache && mJarReader)
mJarReader->Close();
mJarReader = nullptr;
return rv;
}
NS_IMETHODIMP
nsJARInputThunk::Available(uint64_t *avail)
{
return mJarStream->Available(avail);
}
NS_IMETHODIMP
nsJARInputThunk::Read(char *buf, uint32_t count, uint32_t *countRead)
{
return mJarStream->Read(buf, count, countRead);
}
NS_IMETHODIMP
nsJARInputThunk::ReadSegments(nsWriteSegmentFun writer, void *closure,
uint32_t count, uint32_t *countRead)
{
// stream transport does only calls Read()
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsJARInputThunk::IsNonBlocking(bool *nonBlocking)
{
*nonBlocking = false;
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsJARChannel
//-----------------------------------------------------------------------------
nsJARChannel::nsJARChannel()
: mOpened(false)
, mAppURI(nullptr)
, mContentLength(-1)
, mLoadFlags(LOAD_NORMAL)
, mStatus(NS_OK)
, mIsPending(false)
, mIsUnsafe(true)
, mOpeningRemote(false)
{
#if defined(PR_LOGGING)
if (!gJarProtocolLog)
gJarProtocolLog = PR_NewLogModule("nsJarProtocol");
#endif
// hold an owning reference to the jar handler
NS_ADDREF(gJarHandler);
}
nsJARChannel::~nsJARChannel()
{
// release owning reference to the jar handler
nsJARProtocolHandler *handler = gJarHandler;
NS_RELEASE(handler); // nullptr parameter
}
NS_IMPL_ISUPPORTS_INHERITED(nsJARChannel,
nsHashPropertyBag,
nsIRequest,
nsIChannel,
nsIStreamListener,
nsIRequestObserver,
nsIDownloadObserver,
nsIRemoteOpenFileListener,
nsIJARChannel)
nsresult
nsJARChannel::Init(nsIURI *uri)
{
nsresult rv;
mJarURI = do_QueryInterface(uri, &rv);
if (NS_FAILED(rv))
return rv;
mOriginalURI = mJarURI;
// Prevent loading jar:javascript URIs (see bug 290982).
nsCOMPtr<nsIURI> innerURI;
rv = mJarURI->GetJARFile(getter_AddRefs(innerURI));
if (NS_FAILED(rv))
return rv;
bool isJS;
rv = innerURI->SchemeIs("javascript", &isJS);
if (NS_FAILED(rv))
return rv;
if (isJS) {
NS_WARNING("blocking jar:javascript:");
return NS_ERROR_INVALID_ARG;
}
#if defined(PR_LOGGING)
mJarURI->GetSpec(mSpec);
#endif
return rv;
}
nsresult
nsJARChannel::CreateJarInput(nsIZipReaderCache *jarCache, nsJARInputThunk **resultInput)
{
MOZ_ASSERT(resultInput);
// important to pass a clone of the file since the nsIFile impl is not
// necessarily MT-safe
nsCOMPtr<nsIFile> clonedFile;
nsresult rv = mJarFile->Clone(getter_AddRefs(clonedFile));
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsIZipReader> reader;
if (jarCache) {
if (mInnerJarEntry.IsEmpty())
rv = jarCache->GetZip(clonedFile, getter_AddRefs(reader));
else
rv = jarCache->GetInnerZip(clonedFile, mInnerJarEntry,
getter_AddRefs(reader));
} else {
// create an uncached jar reader
nsCOMPtr<nsIZipReader> outerReader = do_CreateInstance(kZipReaderCID, &rv);
if (NS_FAILED(rv))
return rv;
rv = outerReader->Open(clonedFile);
if (NS_FAILED(rv))
return rv;
if (mInnerJarEntry.IsEmpty())
reader = outerReader;
else {
reader = do_CreateInstance(kZipReaderCID, &rv);
if (NS_FAILED(rv))
return rv;
rv = reader->OpenInner(outerReader, mInnerJarEntry);
}
}
if (NS_FAILED(rv))
return rv;
nsRefPtr<nsJARInputThunk> input = new nsJARInputThunk(reader,
mJarURI,
mJarEntry,
jarCache != nullptr
);
rv = input->Init();
if (NS_FAILED(rv))
return rv;
// Make GetContentLength meaningful
mContentLength = input->GetContentLength();
input.forget(resultInput);
return NS_OK;
}
nsresult
nsJARChannel::LookupFile()
{
LOG(("nsJARChannel::LookupFile [this=%x %s]\n", this, mSpec.get()));
nsresult rv;
nsCOMPtr<nsIURI> uri;
rv = mJarURI->GetJARFile(getter_AddRefs(mJarBaseURI));
if (NS_FAILED(rv))
return rv;
rv = mJarURI->GetJAREntry(mJarEntry);
if (NS_FAILED(rv))
return rv;
// The name of the JAR entry must not contain URL-escaped characters:
// we're moving from URL domain to a filename domain here. nsStandardURL
// does basic escaping by default, which breaks reading zipped files which
// have e.g. spaces in their filenames.
NS_UnescapeURL(mJarEntry);
// try to get a nsIFile directly from the url, which will often succeed.
{
nsCOMPtr<nsIFileURL> fileURL = do_QueryInterface(mJarBaseURI);
if (fileURL)
fileURL->GetFile(getter_AddRefs(mJarFile));
}
// if we're in child process and have special "remoteopenfile:://" scheme,
// create special nsIFile that gets file handle from parent when opened.
if (!mJarFile && !gJarHandler->IsMainProcess()) {
nsAutoCString scheme;
rv = mJarBaseURI->GetScheme(scheme);
if (NS_SUCCEEDED(rv) && scheme.EqualsLiteral("remoteopenfile")) {
nsRefPtr<RemoteOpenFileChild> remoteFile = new RemoteOpenFileChild();
rv = remoteFile->Init(mJarBaseURI, mAppURI);
NS_ENSURE_SUCCESS(rv, rv);
mJarFile = remoteFile;
nsIZipReaderCache *jarCache = gJarHandler->JarCache();
if (jarCache) {
bool cached = false;
rv = jarCache->IsCached(mJarFile, &cached);
if (NS_SUCCEEDED(rv) && cached) {
// zipcache already has file mmapped: don't open on parent,
// just return and proceed to cache hit in CreateJarInput()
return NS_OK;
}
}
mOpeningRemote = true;
if (gJarHandler->RemoteOpenFileInProgress(remoteFile, this)) {
// JarHandler will trigger OnRemoteFileOpen() after the first
// request for this file completes and we'll get a JAR cache
// hit.
return NS_OK;
}
// Open file on parent: OnRemoteFileOpenComplete called when done
nsCOMPtr<nsITabChild> tabChild;
NS_QueryNotificationCallbacks(mCallbacks, mLoadGroup, tabChild);
rv = remoteFile->AsyncRemoteFileOpen(PR_RDONLY, this, tabChild.get());
NS_ENSURE_SUCCESS(rv, rv);
}
}
// try to handle a nested jar
if (!mJarFile) {
nsCOMPtr<nsIJARURI> jarURI = do_QueryInterface(mJarBaseURI);
if (jarURI) {
nsCOMPtr<nsIFileURL> fileURL;
nsCOMPtr<nsIURI> innerJarURI;
rv = jarURI->GetJARFile(getter_AddRefs(innerJarURI));
if (NS_SUCCEEDED(rv))
fileURL = do_QueryInterface(innerJarURI);
if (fileURL) {
fileURL->GetFile(getter_AddRefs(mJarFile));
jarURI->GetJAREntry(mInnerJarEntry);
}
}
}
return rv;
}
nsresult
nsJARChannel::OpenLocalFile()
{
MOZ_ASSERT(mIsPending);
// Local files are always considered safe.
mIsUnsafe = false;
nsRefPtr<nsJARInputThunk> input;
nsresult rv = CreateJarInput(gJarHandler->JarCache(),
getter_AddRefs(input));
if (NS_SUCCEEDED(rv)) {
// Create input stream pump and call AsyncRead as a block.
rv = NS_NewInputStreamPump(getter_AddRefs(mPump), input);
if (NS_SUCCEEDED(rv))
rv = mPump->AsyncRead(this, nullptr);
}
return rv;
}
void
nsJARChannel::NotifyError(nsresult aError)
{
MOZ_ASSERT(NS_FAILED(aError));
mStatus = aError;
OnStartRequest(nullptr, nullptr);
OnStopRequest(nullptr, nullptr, aError);
}
//-----------------------------------------------------------------------------
// nsIRequest
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsJARChannel::GetName(nsACString &result)
{
return mJarURI->GetSpec(result);
}
NS_IMETHODIMP
nsJARChannel::IsPending(bool *result)
{
*result = mIsPending;
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::GetStatus(nsresult *status)
{
if (mPump && NS_SUCCEEDED(mStatus))
mPump->GetStatus(status);
else
*status = mStatus;
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::Cancel(nsresult status)
{
mStatus = status;
if (mPump)
return mPump->Cancel(status);
NS_ASSERTION(!mIsPending, "need to implement cancel when downloading");
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::Suspend()
{
if (mPump)
return mPump->Suspend();
NS_ASSERTION(!mIsPending, "need to implement suspend when downloading");
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::Resume()
{
if (mPump)
return mPump->Resume();
NS_ASSERTION(!mIsPending, "need to implement resume when downloading");
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::GetLoadFlags(nsLoadFlags *aLoadFlags)
{
*aLoadFlags = mLoadFlags;
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::SetLoadFlags(nsLoadFlags aLoadFlags)
{
mLoadFlags = aLoadFlags;
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::GetLoadGroup(nsILoadGroup **aLoadGroup)
{
NS_IF_ADDREF(*aLoadGroup = mLoadGroup);
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::SetLoadGroup(nsILoadGroup *aLoadGroup)
{
mLoadGroup = aLoadGroup;
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsIChannel
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsJARChannel::GetOriginalURI(nsIURI **aURI)
{
*aURI = mOriginalURI;
NS_ADDREF(*aURI);
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::SetOriginalURI(nsIURI *aURI)
{
NS_ENSURE_ARG_POINTER(aURI);
mOriginalURI = aURI;
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::GetURI(nsIURI **aURI)
{
if (mAppURI) {
NS_IF_ADDREF(*aURI = mAppURI);
} else {
NS_IF_ADDREF(*aURI = mJarURI);
}
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::GetOwner(nsISupports **aOwner)
{
// JAR signatures are not processed to avoid main-thread network I/O (bug 726125)
*aOwner = mOwner;
NS_IF_ADDREF(*aOwner);
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::SetOwner(nsISupports *aOwner)
{
mOwner = aOwner;
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::GetNotificationCallbacks(nsIInterfaceRequestor **aCallbacks)
{
NS_IF_ADDREF(*aCallbacks = mCallbacks);
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::SetNotificationCallbacks(nsIInterfaceRequestor *aCallbacks)
{
mCallbacks = aCallbacks;
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::GetSecurityInfo(nsISupports **aSecurityInfo)
{
NS_PRECONDITION(aSecurityInfo, "Null out param");
NS_IF_ADDREF(*aSecurityInfo = mSecurityInfo);
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::GetContentType(nsACString &result)
{
// If the Jar file has not been open yet,
// We return application/x-unknown-content-type
if (!mOpened) {
result.Assign(UNKNOWN_CONTENT_TYPE);
return NS_OK;
}
if (mContentType.IsEmpty()) {
//
// generate content type and set it
//
const char *ext = nullptr, *fileName = mJarEntry.get();
int32_t len = mJarEntry.Length();
// check if we're displaying a directory
// mJarEntry will be empty if we're trying to display
// the topmost directory in a zip, e.g. jar:foo.zip!/
if (ENTRY_IS_DIRECTORY(mJarEntry)) {
mContentType.AssignLiteral(APPLICATION_HTTP_INDEX_FORMAT);
}
else {
// not a directory, take a guess by its extension
for (int32_t i = len-1; i >= 0; i--) {
if (fileName[i] == '.') {
ext = &fileName[i + 1];
break;
}
}
if (ext) {
nsIMIMEService *mimeServ = gJarHandler->MimeService();
if (mimeServ)
mimeServ->GetTypeFromExtension(nsDependentCString(ext), mContentType);
}
if (mContentType.IsEmpty())
mContentType.AssignLiteral(UNKNOWN_CONTENT_TYPE);
}
}
result = mContentType;
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::SetContentType(const nsACString &aContentType)
{
// If someone gives us a type hint we should just use that type instead of
// doing our guessing. So we don't care when this is being called.
// mContentCharset is unchanged if not parsed
NS_ParseContentType(aContentType, mContentType, mContentCharset);
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::GetContentCharset(nsACString &aContentCharset)
{
// If someone gives us a charset hint we should just use that charset.
// So we don't care when this is being called.
aContentCharset = mContentCharset;
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::SetContentCharset(const nsACString &aContentCharset)
{
mContentCharset = aContentCharset;
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::GetContentDisposition(uint32_t *aContentDisposition)
{
if (mContentDispositionHeader.IsEmpty())
return NS_ERROR_NOT_AVAILABLE;
*aContentDisposition = mContentDisposition;
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::SetContentDisposition(uint32_t aContentDisposition)
{
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
nsJARChannel::GetContentDispositionFilename(nsAString &aContentDispositionFilename)
{
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
nsJARChannel::SetContentDispositionFilename(const nsAString &aContentDispositionFilename)
{
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
nsJARChannel::GetContentDispositionHeader(nsACString &aContentDispositionHeader)
{
if (mContentDispositionHeader.IsEmpty())
return NS_ERROR_NOT_AVAILABLE;
aContentDispositionHeader = mContentDispositionHeader;
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::GetContentLength(int64_t *result)
{
*result = mContentLength;
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::SetContentLength(int64_t aContentLength)
{
// XXX does this really make any sense at all?
mContentLength = aContentLength;
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::Open(nsIInputStream **stream)
{
LOG(("nsJARChannel::Open [this=%x]\n", this));
NS_ENSURE_TRUE(!mOpened, NS_ERROR_IN_PROGRESS);
NS_ENSURE_TRUE(!mIsPending, NS_ERROR_IN_PROGRESS);
mJarFile = nullptr;
mIsUnsafe = true;
nsresult rv = LookupFile();
if (NS_FAILED(rv))
return rv;
// If mJarInput was not set by LookupFile, the JAR is a remote jar.
if (!mJarFile) {
NS_NOTREACHED("need sync downloader");
return NS_ERROR_NOT_IMPLEMENTED;
}
nsRefPtr<nsJARInputThunk> input;
rv = CreateJarInput(gJarHandler->JarCache(), getter_AddRefs(input));
if (NS_FAILED(rv))
return rv;
input.forget(stream);
mOpened = true;
// local files are always considered safe
mIsUnsafe = false;
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::AsyncOpen(nsIStreamListener *listener, nsISupports *ctx)
{
LOG(("nsJARChannel::AsyncOpen [this=%x]\n", this));
NS_ENSURE_ARG_POINTER(listener);
NS_ENSURE_TRUE(!mOpened, NS_ERROR_IN_PROGRESS);
NS_ENSURE_TRUE(!mIsPending, NS_ERROR_IN_PROGRESS);
mJarFile = nullptr;
mIsUnsafe = true;
// Initialize mProgressSink
NS_QueryNotificationCallbacks(mCallbacks, mLoadGroup, mProgressSink);
nsresult rv = LookupFile();
if (NS_FAILED(rv))
return rv;
// These variables must only be set if we're going to trigger an
// OnStartRequest, either from AsyncRead or OnDownloadComplete.
//
// That means: Do not add early return statements beyond this point!
mListener = listener;
mListenerContext = ctx;
mIsPending = true;
if (!mJarFile) {
// Not a local file...
// kick off an async download of the base URI...
rv = NS_NewDownloader(getter_AddRefs(mDownloader), this);
if (NS_SUCCEEDED(rv))
rv = NS_OpenURI(mDownloader, nullptr, mJarBaseURI, nullptr,
mLoadGroup, mCallbacks,
mLoadFlags & ~(LOAD_DOCUMENT_URI | LOAD_CALL_CONTENT_SNIFFERS));
} else if (mOpeningRemote) {
// nothing to do: already asked parent to open file.
} else {
rv = OpenLocalFile();
}
if (NS_FAILED(rv)) {
mIsPending = false;
mListenerContext = nullptr;
mListener = nullptr;
return rv;
}
if (mLoadGroup)
mLoadGroup->AddRequest(this, nullptr);
mOpened = true;
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsIJARChannel
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsJARChannel::GetIsUnsafe(bool *isUnsafe)
{
*isUnsafe = mIsUnsafe;
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::SetAppURI(nsIURI *aURI) {
NS_ENSURE_ARG_POINTER(aURI);
nsAutoCString scheme;
aURI->GetScheme(scheme);
if (!scheme.EqualsLiteral("app")) {
return NS_ERROR_INVALID_ARG;
}
mAppURI = aURI;
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::GetJarFile(nsIFile **aFile)
{
NS_IF_ADDREF(*aFile = mJarFile);
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsIDownloadObserver
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsJARChannel::OnDownloadComplete(nsIDownloader *downloader,
nsIRequest *request,
nsISupports *context,
nsresult status,
nsIFile *file)
{
nsresult rv;
nsCOMPtr<nsIChannel> channel(do_QueryInterface(request));
if (channel) {
uint32_t loadFlags;
channel->GetLoadFlags(&loadFlags);
if (loadFlags & LOAD_REPLACE) {
mLoadFlags |= LOAD_REPLACE;
if (!mOriginalURI) {
SetOriginalURI(mJarURI);
}
nsCOMPtr<nsIURI> innerURI;
rv = channel->GetURI(getter_AddRefs(innerURI));
if (NS_SUCCEEDED(rv)) {
nsCOMPtr<nsIJARURI> newURI;
rv = mJarURI->CloneWithJARFile(innerURI,
getter_AddRefs(newURI));
if (NS_SUCCEEDED(rv)) {
mJarURI = newURI;
}
}
if (NS_SUCCEEDED(status)) {
status = rv;
}
}
}
if (NS_SUCCEEDED(status) && channel) {
// Grab the security info from our base channel
channel->GetSecurityInfo(getter_AddRefs(mSecurityInfo));
nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(channel));
if (httpChannel) {
// We only want to run scripts if the server really intended to
// send us a JAR file. Check the server-supplied content type for
// a JAR type.
nsAutoCString header;
httpChannel->GetResponseHeader(NS_LITERAL_CSTRING("Content-Type"),
header);
nsAutoCString contentType;
nsAutoCString charset;
NS_ParseContentType(header, contentType, charset);
nsAutoCString channelContentType;
channel->GetContentType(channelContentType);
mIsUnsafe = !(contentType.Equals(channelContentType) &&
(contentType.EqualsLiteral("application/java-archive") ||
contentType.EqualsLiteral("application/x-jar")));
} else {
nsCOMPtr<nsIJARChannel> innerJARChannel(do_QueryInterface(channel));
if (innerJARChannel) {
bool unsafe;
innerJARChannel->GetIsUnsafe(&unsafe);
mIsUnsafe = unsafe;
}
}
channel->GetContentDispositionHeader(mContentDispositionHeader);
mContentDisposition = NS_GetContentDispositionFromHeader(mContentDispositionHeader, this);
}
if (NS_SUCCEEDED(status) && mIsUnsafe &&
!Preferences::GetBool("network.jar.open-unsafe-types", false)) {
status = NS_ERROR_UNSAFE_CONTENT_TYPE;
}
if (NS_SUCCEEDED(status)) {
// Refuse to unpack view-source: jars even if open-unsafe-types is set.
nsCOMPtr<nsIViewSourceChannel> viewSource = do_QueryInterface(channel);
if (viewSource) {
status = NS_ERROR_UNSAFE_CONTENT_TYPE;
}
}
if (NS_SUCCEEDED(status)) {
mJarFile = file;
nsRefPtr<nsJARInputThunk> input;
rv = CreateJarInput(nullptr, getter_AddRefs(input));
if (NS_SUCCEEDED(rv)) {
// create input stream pump
rv = NS_NewInputStreamPump(getter_AddRefs(mPump), input);
if (NS_SUCCEEDED(rv))
rv = mPump->AsyncRead(this, nullptr);
}
status = rv;
}
if (NS_FAILED(status)) {
NotifyError(status);
}
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsIRemoteOpenFileListener
//-----------------------------------------------------------------------------
nsresult
nsJARChannel::OnRemoteFileOpenComplete(nsresult aOpenStatus)
{
nsresult rv = aOpenStatus;
// NS_ERROR_ALREADY_OPENED here means we'll hit JAR cache in
// OpenLocalFile().
if (NS_SUCCEEDED(rv) || rv == NS_ERROR_ALREADY_OPENED) {
rv = OpenLocalFile();
}
if (NS_FAILED(rv)) {
NotifyError(rv);
}
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsIStreamListener
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsJARChannel::OnStartRequest(nsIRequest *req, nsISupports *ctx)
{
LOG(("nsJARChannel::OnStartRequest [this=%x %s]\n", this, mSpec.get()));
return mListener->OnStartRequest(this, mListenerContext);
}
NS_IMETHODIMP
nsJARChannel::OnStopRequest(nsIRequest *req, nsISupports *ctx, nsresult status)
{
LOG(("nsJARChannel::OnStopRequest [this=%x %s status=%x]\n",
this, mSpec.get(), status));
if (NS_SUCCEEDED(mStatus))
mStatus = status;
if (mListener) {
mListener->OnStopRequest(this, mListenerContext, status);
mListener = 0;
mListenerContext = 0;
}
if (mLoadGroup)
mLoadGroup->RemoveRequest(this, nullptr, status);
mPump = 0;
mIsPending = false;
mDownloader = 0; // this may delete the underlying jar file
// Drop notification callbacks to prevent cycles.
mCallbacks = 0;
mProgressSink = 0;
return NS_OK;
}
NS_IMETHODIMP
nsJARChannel::OnDataAvailable(nsIRequest *req, nsISupports *ctx,
nsIInputStream *stream,
uint64_t offset, uint32_t count)
{
#if defined(PR_LOGGING)
LOG(("nsJARChannel::OnDataAvailable [this=%x %s]\n", this, mSpec.get()));
#endif
nsresult rv;
rv = mListener->OnDataAvailable(this, mListenerContext, stream, offset, count);
// simply report progress here instead of hooking ourselves up as a
// nsITransportEventSink implementation.
// XXX do the 64-bit stuff for real
if (mProgressSink && NS_SUCCEEDED(rv) && !(mLoadFlags & LOAD_BACKGROUND))
mProgressSink->OnProgress(this, nullptr, offset + count,
uint64_t(mContentLength));
return rv; // let the pump cancel on failure
}
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