fune/netwerk/protocol/viewsource/nsViewSourceChannel.cpp
Ehsan Akhgari 6ac40622c3 Bug 1201229 - Return an empty string for a header when an error occurs; r=dragana
This fixes nsIHttpChannel::GetRequestHeader() and
nsIHttpChannel::GetResponseHeader() to always empty out their string
argument even when they fail.  This prevents programming mistakes of
passing the same string object to multiple of these calls and using the
string value without checking the nsresult error code, since otherwise
the string value may be unchanged from a previous call.

Note that this doesn't affect JS consumers of these APIs since we only
empty out the string argument in case the method fails, which will be
translated to a JS exception, and the JS code will never get to see the
emptied string.
2015-09-08 20:08:35 -04:00

912 lines
27 KiB
C++

/* -*- 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"
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::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;
return mChannel->SetLoadFlags((aLoadFlags |
::nsIRequest::LOAD_FROM_CACHE) &
~::nsIChannel::LOAD_DOCUMENT_URI);
}
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;
}
// 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::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::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);
}