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tenfourfox/netwerk/protocol/viewsource/nsViewSourceChannel.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim:set ts=4 sw=4 sts=4 et: */
/* 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 "nsViewSourceChannel.h"
#include "nsIIOService.h"
#include "nsMimeTypes.h"
#include "nsNetUtil.h"
#include "nsContentUtils.h"
#include "nsIHttpHeaderVisitor.h"
#include "nsContentSecurityManager.h"
#include "nsNullPrincipal.h"
#include "nsServiceManagerUtils.h"
#include "nsIInputStreamChannel.h"
#include "mozilla/DebugOnly.h"
NS_IMPL_ADDREF(nsViewSourceChannel)
NS_IMPL_RELEASE(nsViewSourceChannel)
/*
This QI uses NS_INTERFACE_MAP_ENTRY_CONDITIONAL to check for
non-nullness of mHttpChannel, mCachingChannel, and mUploadChannel.
*/
NS_INTERFACE_MAP_BEGIN(nsViewSourceChannel)
NS_INTERFACE_MAP_ENTRY(nsIViewSourceChannel)
NS_INTERFACE_MAP_ENTRY(nsIStreamListener)
NS_INTERFACE_MAP_ENTRY(nsIRequestObserver)
NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIHttpChannel, mHttpChannel)
NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIHttpChannelInternal, mHttpChannelInternal)
NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsICachingChannel, mCachingChannel)
NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsICacheInfoChannel, mCacheInfoChannel)
NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIApplicationCacheChannel, mApplicationCacheChannel)
NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIUploadChannel, mUploadChannel)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsIRequest, nsIViewSourceChannel)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsIChannel, nsIViewSourceChannel)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIViewSourceChannel)
NS_INTERFACE_MAP_END
nsresult
nsViewSourceChannel::Init(nsIURI* uri)
{
mOriginalURI = uri;
nsAutoCString path;
nsresult rv = uri->GetPath(path);
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsIIOService> pService(do_GetIOService(&rv));
if (NS_FAILED(rv)) return rv;
nsAutoCString scheme;
rv = pService->ExtractScheme(path, scheme);
if (NS_FAILED(rv))
return rv;
// prevent viewing source of javascript URIs (see bug 204779)
if (scheme.LowerCaseEqualsLiteral("javascript")) {
NS_WARNING("blocking view-source:javascript:");
return NS_ERROR_INVALID_ARG;
}
// This function is called from within nsViewSourceHandler::NewChannel2
// and sets the right loadInfo right after returning from this function.
// Until then we follow the principal of least privilege and use
// nullPrincipal as the loadingPrincipal.
nsCOMPtr<nsIPrincipal> nullPrincipal = nsNullPrincipal::Create();
NS_ENSURE_TRUE(nullPrincipal, NS_ERROR_FAILURE);
rv = pService->NewChannel2(path,
nullptr, // aOriginCharset
nullptr, // aCharSet
nullptr, // aLoadingNode
nullPrincipal,
nullptr, // aTriggeringPrincipal
nsILoadInfo::SEC_NORMAL,
nsIContentPolicy::TYPE_OTHER,
getter_AddRefs(mChannel));
NS_ENSURE_SUCCESS(rv, rv);
mIsSrcdocChannel = false;
mChannel->SetOriginalURI(mOriginalURI);
mHttpChannel = do_QueryInterface(mChannel);
mHttpChannelInternal = do_QueryInterface(mChannel);
mCachingChannel = do_QueryInterface(mChannel);
mCacheInfoChannel = do_QueryInterface(mChannel);
mApplicationCacheChannel = do_QueryInterface(mChannel);
mUploadChannel = do_QueryInterface(mChannel);
return NS_OK;
}
nsresult
nsViewSourceChannel::InitSrcdoc(nsIURI* aURI,
nsIURI* aBaseURI,
const nsAString &aSrcdoc,
nsINode *aLoadingNode,
nsIPrincipal *aLoadingPrincipal,
nsIPrincipal *aTriggeringPrincipal,
nsSecurityFlags aSecurityFlags,
nsContentPolicyType aContentPolicyType)
{
nsresult rv;
nsCOMPtr<nsIURI> inStreamURI;
// Need to strip view-source: from the URI. Hardcoded to
// about:srcdoc as this is the only permissible URI for srcdoc
// loads
rv = NS_NewURI(getter_AddRefs(inStreamURI),
NS_LITERAL_STRING("about:srcdoc"));
NS_ENSURE_SUCCESS(rv, rv);
rv = NS_NewInputStreamChannelInternal(getter_AddRefs(mChannel),
inStreamURI,
aSrcdoc,
NS_LITERAL_CSTRING("text/html"),
aLoadingNode,
aLoadingPrincipal,
aTriggeringPrincipal,
aSecurityFlags,
aContentPolicyType,
true);
NS_ENSURE_SUCCESS(rv, rv);
mOriginalURI = aURI;
mIsSrcdocChannel = true;
mChannel->SetOriginalURI(mOriginalURI);
mHttpChannel = do_QueryInterface(mChannel);
mHttpChannelInternal = do_QueryInterface(mChannel);
mCachingChannel = do_QueryInterface(mChannel);
mCacheInfoChannel = do_QueryInterface(mChannel);
mApplicationCacheChannel = do_QueryInterface(mChannel);
mUploadChannel = do_QueryInterface(mChannel);
nsCOMPtr<nsIInputStreamChannel> isc = do_QueryInterface(mChannel);
MOZ_ASSERT(isc);
isc->SetBaseURI(aBaseURI);
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
// nsIRequest methods:
NS_IMETHODIMP
nsViewSourceChannel::GetName(nsACString &result)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsViewSourceChannel::GetTransferSize(uint64_t *aTransferSize)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsViewSourceChannel::GetDecodedBodySize(uint64_t *aDecodedBodySize)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsViewSourceChannel::GetEncodedBodySize(uint64_t *aEncodedBodySize)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsViewSourceChannel::IsPending(bool *result)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->IsPending(result);
}
NS_IMETHODIMP
nsViewSourceChannel::GetStatus(nsresult *status)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->GetStatus(status);
}
NS_IMETHODIMP
nsViewSourceChannel::Cancel(nsresult status)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->Cancel(status);
}
NS_IMETHODIMP
nsViewSourceChannel::Suspend(void)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->Suspend();
}
NS_IMETHODIMP
nsViewSourceChannel::Resume(void)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->Resume();
}
////////////////////////////////////////////////////////////////////////////////
// nsIChannel methods:
NS_IMETHODIMP
nsViewSourceChannel::GetOriginalURI(nsIURI* *aURI)
{
NS_ASSERTION(aURI, "Null out param!");
*aURI = mOriginalURI;
NS_ADDREF(*aURI);
return NS_OK;
}
NS_IMETHODIMP
nsViewSourceChannel::SetOriginalURI(nsIURI* aURI)
{
NS_ENSURE_ARG_POINTER(aURI);
mOriginalURI = aURI;
return NS_OK;
}
NS_IMETHODIMP
nsViewSourceChannel::GetURI(nsIURI* *aURI)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
nsCOMPtr<nsIURI> uri;
nsresult rv = mChannel->GetURI(getter_AddRefs(uri));
if (NS_FAILED(rv))
return rv;
// protect ourselves against broken channel implementations
if (!uri) {
NS_ERROR("inner channel returned NS_OK and a null URI");
return NS_ERROR_UNEXPECTED;
}
nsAutoCString spec;
uri->GetSpec(spec);
/* XXX Gross hack -- NS_NewURI goes into an infinite loop on
non-flat specs. See bug 136980 */
return NS_NewURI(aURI, nsAutoCString(NS_LITERAL_CSTRING("view-source:")+spec), nullptr);
}
NS_IMETHODIMP
nsViewSourceChannel::Open(nsIInputStream **_retval)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
nsresult rv = NS_OK;
nsCOMPtr<nsILoadInfo> loadInfo = mChannel->GetLoadInfo();
if (loadInfo && loadInfo->GetEnforceSecurity()) {
mChannel->Open2(_retval);
}
else {
mChannel->Open(_retval);
}
if (NS_SUCCEEDED(rv)) {
mOpened = true;
}
return rv;
}
NS_IMETHODIMP
nsViewSourceChannel::Open2(nsIInputStream** aStream)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
nsCOMPtr<nsILoadInfo> loadInfo = mChannel->GetLoadInfo();
if(!loadInfo) {
MOZ_ASSERT(loadInfo, "can not enforce security without loadInfo");
return NS_ERROR_UNEXPECTED;
}
// setting the flag on the loadInfo indicates that the underlying
// channel will be openend using Open2() and hence performs
// the necessary security checks.
loadInfo->SetEnforceSecurity(true);
return Open(aStream);
}
NS_IMETHODIMP
nsViewSourceChannel::AsyncOpen(nsIStreamListener *aListener, nsISupports *ctxt)
{
#ifdef DEBUG
{
nsCOMPtr<nsILoadInfo> loadInfo = mChannel->GetLoadInfo();
MOZ_ASSERT(!loadInfo || loadInfo->GetSecurityMode() == 0 ||
loadInfo->GetEnforceSecurity(),
"security flags in loadInfo but asyncOpen2() not called");
}
#endif
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
mListener = aListener;
/*
* We want to add ourselves to the loadgroup before opening
* mChannel, since we want to make sure we're in the loadgroup
* when mChannel finishes and fires OnStopRequest()
*/
nsCOMPtr<nsILoadGroup> loadGroup;
mChannel->GetLoadGroup(getter_AddRefs(loadGroup));
if (loadGroup)
loadGroup->AddRequest(static_cast<nsIViewSourceChannel*>
(this), nullptr);
nsresult rv = NS_OK;
nsCOMPtr<nsILoadInfo> loadInfo = mChannel->GetLoadInfo();
if (loadInfo && loadInfo->GetEnforceSecurity()) {
rv = mChannel->AsyncOpen2(this);
}
else {
rv = mChannel->AsyncOpen(this, ctxt);
}
if (NS_FAILED(rv) && loadGroup)
loadGroup->RemoveRequest(static_cast<nsIViewSourceChannel*>
(this),
nullptr, rv);
if (NS_SUCCEEDED(rv)) {
mOpened = true;
}
return rv;
}
NS_IMETHODIMP
nsViewSourceChannel::AsyncOpen2(nsIStreamListener *aListener)
{
nsCOMPtr<nsILoadInfo> loadInfo = mChannel->GetLoadInfo();
if(!loadInfo) {
MOZ_ASSERT(loadInfo, "can not enforce security without loadInfo");
return NS_ERROR_UNEXPECTED;
}
// setting the flag on the loadInfo indicates that the underlying
// channel will be openend using AsyncOpen2() and hence performs
// the necessary security checks.
loadInfo->SetEnforceSecurity(true);
return AsyncOpen(aListener, nullptr);
}
/*
* Both the view source channel and mChannel are added to the
* loadgroup. There should never be more than one request in the
* loadgroup that has LOAD_DOCUMENT_URI set. The one that has this
* flag set is the request whose URI is used to refetch the document,
* so it better be the viewsource channel.
*
* Therefore, we need to make sure that
* 1) The load flags on mChannel _never_ include LOAD_DOCUMENT_URI
* 2) The load flags on |this| include LOAD_DOCUMENT_URI when it was
* set via SetLoadFlags (mIsDocument keeps track of this flag).
*/
NS_IMETHODIMP
nsViewSourceChannel::GetLoadFlags(uint32_t *aLoadFlags)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
nsresult rv = mChannel->GetLoadFlags(aLoadFlags);
if (NS_FAILED(rv))
return rv;
// This should actually be just LOAD_DOCUMENT_URI but the win32 compiler
// fails to deal due to amiguous inheritance. nsIChannel::LOAD_DOCUMENT_URI
// also fails; the Win32 compiler thinks that's supposed to be a method.
if (mIsDocument)
*aLoadFlags |= ::nsIChannel::LOAD_DOCUMENT_URI;
return rv;
}
NS_IMETHODIMP
nsViewSourceChannel::SetLoadFlags(uint32_t aLoadFlags)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
// "View source" always wants the currently cached content.
// We also want to have _this_ channel, not mChannel to be the
// 'document' channel in the loadgroup.
// These should actually be just LOAD_FROM_CACHE and LOAD_DOCUMENT_URI but
// the win32 compiler fails to deal due to amiguous inheritance.
// nsIChannel::LOAD_DOCUMENT_URI/nsIRequest::LOAD_FROM_CACHE also fails; the
// Win32 compiler thinks that's supposed to be a method.
mIsDocument = (aLoadFlags & ::nsIChannel::LOAD_DOCUMENT_URI) ? true : false;
nsresult rv = mChannel->SetLoadFlags((aLoadFlags |
::nsIRequest::LOAD_FROM_CACHE) &
~::nsIChannel::LOAD_DOCUMENT_URI);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (mHttpChannel) {
rv = mHttpChannel->SetIsMainDocumentChannel(aLoadFlags & ::nsIChannel::LOAD_DOCUMENT_URI);
MOZ_ASSERT(NS_SUCCEEDED(rv));
}
return NS_OK;
}
NS_IMETHODIMP
nsViewSourceChannel::GetContentType(nsACString &aContentType)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
aContentType.Truncate();
if (mContentType.IsEmpty())
{
// Get the current content type
nsresult rv;
nsAutoCString contentType;
rv = mChannel->GetContentType(contentType);
if (NS_FAILED(rv)) return rv;
// If we don't know our type, just say so. The unknown
// content decoder will then kick in automatically, and it
// will call our SetOriginalContentType method instead of our
// SetContentType method to set the type it determines.
if (!contentType.Equals(UNKNOWN_CONTENT_TYPE)) {
contentType = VIEWSOURCE_CONTENT_TYPE;
}
mContentType = contentType;
}
aContentType = mContentType;
return NS_OK;
}
NS_IMETHODIMP
nsViewSourceChannel::SetContentType(const nsACString &aContentType)
{
// Our GetContentType() currently returns VIEWSOURCE_CONTENT_TYPE
//
// However, during the parsing phase the parser calls our
// channel's GetContentType(). Returning the string above trips up
// the parser. In order to avoid messy changes and not to have the
// parser depend on nsIViewSourceChannel Vidur proposed the
// following solution:
//
// The ViewSourceChannel initially returns a content type of
// VIEWSOURCE_CONTENT_TYPE. Based on this type decisions to
// create a viewer for doing a view source are made. After the
// viewer is created, nsLayoutDLF::CreateInstance() calls this
// SetContentType() with the original content type. When it's
// time for the parser to find out the content type it will call
// our channel's GetContentType() and it will get the original
// content type, such as, text/html and everything is kosher from
// then on.
if (!mOpened) {
// We do not take hints
return NS_ERROR_NOT_AVAILABLE;
}
mContentType = aContentType;
return NS_OK;
}
NS_IMETHODIMP
nsViewSourceChannel::GetContentCharset(nsACString &aContentCharset)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->GetContentCharset(aContentCharset);
}
NS_IMETHODIMP
nsViewSourceChannel::SetContentCharset(const nsACString &aContentCharset)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->SetContentCharset(aContentCharset);
}
// We don't forward these methods becacuse content-disposition isn't whitelisted
// (see GetResponseHeader/VisitResponseHeaders).
NS_IMETHODIMP
nsViewSourceChannel::GetContentDisposition(uint32_t *aContentDisposition)
{
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
nsViewSourceChannel::SetContentDisposition(uint32_t aContentDisposition)
{
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
nsViewSourceChannel::GetContentDispositionFilename(nsAString &aContentDispositionFilename)
{
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
nsViewSourceChannel::SetContentDispositionFilename(const nsAString &aContentDispositionFilename)
{
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
nsViewSourceChannel::GetContentDispositionHeader(nsACString &aContentDispositionHeader)
{
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
nsViewSourceChannel::GetContentLength(int64_t *aContentLength)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->GetContentLength(aContentLength);
}
NS_IMETHODIMP
nsViewSourceChannel::SetContentLength(int64_t aContentLength)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->SetContentLength(aContentLength);
}
NS_IMETHODIMP
nsViewSourceChannel::GetLoadGroup(nsILoadGroup* *aLoadGroup)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->GetLoadGroup(aLoadGroup);
}
NS_IMETHODIMP
nsViewSourceChannel::SetLoadGroup(nsILoadGroup* aLoadGroup)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->SetLoadGroup(aLoadGroup);
}
NS_IMETHODIMP
nsViewSourceChannel::GetOwner(nsISupports* *aOwner)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->GetOwner(aOwner);
}
NS_IMETHODIMP
nsViewSourceChannel::SetOwner(nsISupports* aOwner)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->SetOwner(aOwner);
}
NS_IMETHODIMP
nsViewSourceChannel::GetLoadInfo(nsILoadInfo* *aLoadInfo)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->GetLoadInfo(aLoadInfo);
}
NS_IMETHODIMP
nsViewSourceChannel::SetLoadInfo(nsILoadInfo* aLoadInfo)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->SetLoadInfo(aLoadInfo);
}
NS_IMETHODIMP
nsViewSourceChannel::GetNotificationCallbacks(nsIInterfaceRequestor* *aNotificationCallbacks)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->GetNotificationCallbacks(aNotificationCallbacks);
}
NS_IMETHODIMP
nsViewSourceChannel::SetNotificationCallbacks(nsIInterfaceRequestor* aNotificationCallbacks)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->SetNotificationCallbacks(aNotificationCallbacks);
}
NS_IMETHODIMP
nsViewSourceChannel::GetSecurityInfo(nsISupports * *aSecurityInfo)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->GetSecurityInfo(aSecurityInfo);
}
// nsIViewSourceChannel methods
NS_IMETHODIMP
nsViewSourceChannel::GetOriginalContentType(nsACString &aContentType)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
return mChannel->GetContentType(aContentType);
}
NS_IMETHODIMP
nsViewSourceChannel::SetOriginalContentType(const nsACString &aContentType)
{
NS_ENSURE_TRUE(mChannel, NS_ERROR_FAILURE);
// clear our cached content-type value
mContentType.Truncate();
return mChannel->SetContentType(aContentType);
}
NS_IMETHODIMP
nsViewSourceChannel::GetIsSrcdocChannel(bool* aIsSrcdocChannel)
{
*aIsSrcdocChannel = mIsSrcdocChannel;
return NS_OK;
}
NS_IMETHODIMP
nsViewSourceChannel::GetBaseURI(nsIURI** aBaseURI)
{
if (mIsSrcdocChannel) {
nsCOMPtr<nsIInputStreamChannel> isc = do_QueryInterface(mChannel);
if (isc) {
return isc->GetBaseURI(aBaseURI);
}
}
*aBaseURI = mBaseURI;
NS_IF_ADDREF(*aBaseURI);
return NS_OK;
}
NS_IMETHODIMP
nsViewSourceChannel::SetBaseURI(nsIURI* aBaseURI)
{
mBaseURI = aBaseURI;
return NS_OK;
}
NS_IMETHODIMP
nsViewSourceChannel::GetProtocolVersion(nsACString& aProtocolVersion)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
// nsIRequestObserver methods
NS_IMETHODIMP
nsViewSourceChannel::OnStartRequest(nsIRequest *aRequest, nsISupports *aContext)
{
NS_ENSURE_TRUE(mListener, NS_ERROR_FAILURE);
// The channel may have gotten redirected... Time to update our info
mChannel = do_QueryInterface(aRequest);
mHttpChannel = do_QueryInterface(aRequest);
mCachingChannel = do_QueryInterface(aRequest);
mCacheInfoChannel = do_QueryInterface(mChannel);
mUploadChannel = do_QueryInterface(aRequest);
return mListener->OnStartRequest(static_cast<nsIViewSourceChannel*>
(this),
aContext);
}
NS_IMETHODIMP
nsViewSourceChannel::OnStopRequest(nsIRequest *aRequest, nsISupports* aContext,
nsresult aStatus)
{
NS_ENSURE_TRUE(mListener, NS_ERROR_FAILURE);
if (mChannel)
{
nsCOMPtr<nsILoadGroup> loadGroup;
mChannel->GetLoadGroup(getter_AddRefs(loadGroup));
if (loadGroup)
{
loadGroup->RemoveRequest(static_cast<nsIViewSourceChannel*>
(this),
nullptr, aStatus);
}
}
return mListener->OnStopRequest(static_cast<nsIViewSourceChannel*>
(this),
aContext, aStatus);
}
// nsIStreamListener methods
NS_IMETHODIMP
nsViewSourceChannel::OnDataAvailable(nsIRequest *aRequest, nsISupports* aContext,
nsIInputStream *aInputStream,
uint64_t aSourceOffset,
uint32_t aLength)
{
NS_ENSURE_TRUE(mListener, NS_ERROR_FAILURE);
return mListener->OnDataAvailable(static_cast<nsIViewSourceChannel*>
(this),
aContext, aInputStream,
aSourceOffset, aLength);
}
// nsIHttpChannel methods
// We want to forward most of nsIHttpChannel over to mHttpChannel, but we want
// to override GetRequestHeader and VisitHeaders. The reason is that we don't
// want various headers like Link: and Refresh: applying to view-source.
NS_IMETHODIMP
nsViewSourceChannel::GetTopLevelContentWindowId(uint64_t *aWindowId)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->GetTopLevelContentWindowId(aWindowId);
}
NS_IMETHODIMP
nsViewSourceChannel::SetTopLevelContentWindowId(uint64_t aWindowId)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->SetTopLevelContentWindowId(aWindowId);
}
NS_IMETHODIMP
nsViewSourceChannel::GetRequestMethod(nsACString & aRequestMethod)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->GetRequestMethod(aRequestMethod);
}
NS_IMETHODIMP
nsViewSourceChannel::SetRequestMethod(const nsACString & aRequestMethod)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->SetRequestMethod(aRequestMethod);
}
NS_IMETHODIMP
nsViewSourceChannel::GetReferrer(nsIURI * *aReferrer)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->GetReferrer(aReferrer);
}
NS_IMETHODIMP
nsViewSourceChannel::SetReferrer(nsIURI * aReferrer)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->SetReferrer(aReferrer);
}
NS_IMETHODIMP
nsViewSourceChannel::GetReferrerPolicy(uint32_t *aReferrerPolicy)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->GetReferrerPolicy(aReferrerPolicy);
}
NS_IMETHODIMP
nsViewSourceChannel::SetReferrerWithPolicy(nsIURI * aReferrer,
uint32_t aReferrerPolicy)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->SetReferrerWithPolicy(aReferrer, aReferrerPolicy);
}
NS_IMETHODIMP
nsViewSourceChannel::GetRequestHeader(const nsACString & aHeader,
nsACString & aValue)
{
aValue.Truncate();
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->GetRequestHeader(aHeader, aValue);
}
NS_IMETHODIMP
nsViewSourceChannel::SetRequestHeader(const nsACString & aHeader,
const nsACString & aValue,
bool aMerge)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->SetRequestHeader(aHeader, aValue, aMerge);
}
NS_IMETHODIMP
nsViewSourceChannel::SetEmptyRequestHeader(const nsACString & aHeader)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->SetEmptyRequestHeader(aHeader);
}
NS_IMETHODIMP
nsViewSourceChannel::VisitRequestHeaders(nsIHttpHeaderVisitor *aVisitor)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->VisitRequestHeaders(aVisitor);
}
NS_IMETHODIMP
nsViewSourceChannel::VisitNonDefaultRequestHeaders(nsIHttpHeaderVisitor *aVisitor)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->VisitNonDefaultRequestHeaders(aVisitor);
}
NS_IMETHODIMP
nsViewSourceChannel::GetAllowPipelining(bool *aAllowPipelining)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->GetAllowPipelining(aAllowPipelining);
}
NS_IMETHODIMP
nsViewSourceChannel::SetAllowPipelining(bool aAllowPipelining)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->SetAllowPipelining(aAllowPipelining);
}
NS_IMETHODIMP
nsViewSourceChannel::GetAllowSTS(bool *aAllowSTS)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->GetAllowSTS(aAllowSTS);
}
NS_IMETHODIMP
nsViewSourceChannel::SetAllowSTS(bool aAllowSTS)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->SetAllowSTS(aAllowSTS);
}
NS_IMETHODIMP
nsViewSourceChannel::GetRedirectionLimit(uint32_t *aRedirectionLimit)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->GetRedirectionLimit(aRedirectionLimit);
}
NS_IMETHODIMP
nsViewSourceChannel::SetRedirectionLimit(uint32_t aRedirectionLimit)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->SetRedirectionLimit(aRedirectionLimit);
}
NS_IMETHODIMP
nsViewSourceChannel::GetResponseStatus(uint32_t *aResponseStatus)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->GetResponseStatus(aResponseStatus);
}
NS_IMETHODIMP
nsViewSourceChannel::GetResponseStatusText(nsACString & aResponseStatusText)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->GetResponseStatusText(aResponseStatusText);
}
NS_IMETHODIMP
nsViewSourceChannel::GetRequestSucceeded(bool *aRequestSucceeded)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->GetRequestSucceeded(aRequestSucceeded);
}
NS_IMETHODIMP
nsViewSourceChannel::GetResponseHeader(const nsACString & aHeader,
nsACString & aValue)
{
aValue.Truncate();
if (!mHttpChannel)
return NS_ERROR_NULL_POINTER;
if (!aHeader.Equals(NS_LITERAL_CSTRING("Content-Type"),
nsCaseInsensitiveCStringComparator()) &&
!aHeader.Equals(NS_LITERAL_CSTRING("Content-Security-Policy"),
nsCaseInsensitiveCStringComparator()) &&
!aHeader.Equals(NS_LITERAL_CSTRING("Content-Security-Policy-Report-Only"),
nsCaseInsensitiveCStringComparator()) &&
!aHeader.Equals(NS_LITERAL_CSTRING("X-Frame-Options"),
nsCaseInsensitiveCStringComparator())) {
return NS_OK;
}
return mHttpChannel->GetResponseHeader(aHeader, aValue);
}
NS_IMETHODIMP
nsViewSourceChannel::SetResponseHeader(const nsACString & header,
const nsACString & value, bool merge)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->SetResponseHeader(header, value, merge);
}
NS_IMETHODIMP
nsViewSourceChannel::VisitResponseHeaders(nsIHttpHeaderVisitor *aVisitor)
{
if (!mHttpChannel)
return NS_ERROR_NULL_POINTER;
NS_NAMED_LITERAL_CSTRING(contentTypeStr, "Content-Type");
nsAutoCString contentType;
nsresult rv =
mHttpChannel->GetResponseHeader(contentTypeStr, contentType);
if (NS_SUCCEEDED(rv))
aVisitor->VisitHeader(contentTypeStr, contentType);
return NS_OK;
}
NS_IMETHODIMP
nsViewSourceChannel::IsNoStoreResponse(bool *_retval)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->IsNoStoreResponse(_retval);
}
NS_IMETHODIMP
nsViewSourceChannel::IsNoCacheResponse(bool *_retval)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->IsNoCacheResponse(_retval);
}
NS_IMETHODIMP
nsViewSourceChannel::IsPrivateResponse(bool *_retval)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->IsPrivateResponse(_retval);
}
NS_IMETHODIMP
nsViewSourceChannel::RedirectTo(nsIURI *uri)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->RedirectTo(uri);
}
NS_IMETHODIMP
nsViewSourceChannel::GetSchedulingContextID(nsID *_retval)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->GetSchedulingContextID(_retval);
}
NS_IMETHODIMP
nsViewSourceChannel::SetSchedulingContextID(const nsID scid)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->SetSchedulingContextID(scid);
}
NS_IMETHODIMP
nsViewSourceChannel::GetIsMainDocumentChannel(bool* aValue)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->GetIsMainDocumentChannel(aValue);
}
NS_IMETHODIMP
nsViewSourceChannel::SetIsMainDocumentChannel(bool aValue)
{
return !mHttpChannel ? NS_ERROR_NULL_POINTER :
mHttpChannel->SetIsMainDocumentChannel(aValue);
}
// Have to manually forward SetCorsPreflightParameters since it's [notxpcom]
void
nsViewSourceChannel::SetCorsPreflightParameters(const nsTArray<nsCString>& aUnsafeHeaders)
{
mHttpChannelInternal->SetCorsPreflightParameters(aUnsafeHeaders);
}
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