зеркало из https://github.com/mozilla/gecko-dev.git
154 строки
4.4 KiB
C++
154 строки
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=4 sw=2 sts=2 et: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsViewSourceHandler.h"
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#include "nsViewSourceChannel.h"
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#include "nsNetUtil.h"
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#include "nsSimpleNestedURI.h"
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#define VIEW_SOURCE "view-source"
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#define DEFAULT_FLAGS \
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(URI_NORELATIVE | URI_NOAUTH | URI_DANGEROUS_TO_LOAD | URI_NON_PERSISTABLE)
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namespace mozilla {
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namespace net {
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////////////////////////////////////////////////////////////////////////////////
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NS_IMPL_ISUPPORTS(nsViewSourceHandler, nsIProtocolHandler,
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nsIProtocolHandlerWithDynamicFlags)
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////////////////////////////////////////////////////////////////////////////////
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// nsIProtocolHandler methods:
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NS_IMETHODIMP
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nsViewSourceHandler::GetScheme(nsACString& result) {
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result.AssignLiteral(VIEW_SOURCE);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsViewSourceHandler::GetDefaultPort(int32_t* result) {
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*result = -1;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsViewSourceHandler::GetProtocolFlags(uint32_t* result) {
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*result = DEFAULT_FLAGS;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsViewSourceHandler::GetFlagsForURI(nsIURI* aURI, uint32_t* result) {
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*result = DEFAULT_FLAGS;
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nsCOMPtr<nsINestedURI> nestedURI(do_QueryInterface(aURI));
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if (!nestedURI) {
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return NS_OK;
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}
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nsCOMPtr<nsIURI> innerURI;
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nestedURI->GetInnerURI(getter_AddRefs(innerURI));
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nsCOMPtr<nsINetUtil> netUtil = do_GetNetUtil();
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bool isLoadable = false;
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nsresult rv =
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netUtil->ProtocolHasFlags(innerURI, URI_LOADABLE_BY_ANYONE, &isLoadable);
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NS_ENSURE_SUCCESS(rv, rv);
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if (isLoadable) {
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*result |= URI_LOADABLE_BY_EXTENSIONS;
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}
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return NS_OK;
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}
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// static
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nsresult nsViewSourceHandler::CreateNewURI(const nsACString& aSpec,
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const char* aCharset,
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nsIURI* aBaseURI, nsIURI** aResult) {
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*aResult = nullptr;
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// Extract inner URL and normalize to ASCII. This is done to properly
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// support IDN in cases like "view-source:http://www.szalagavató.hu/"
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int32_t colon = aSpec.FindChar(':');
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if (colon == kNotFound) return NS_ERROR_MALFORMED_URI;
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nsCOMPtr<nsIURI> innerURI;
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nsresult rv = NS_NewURI(getter_AddRefs(innerURI), Substring(aSpec, colon + 1),
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aCharset, aBaseURI);
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if (NS_FAILED(rv)) return rv;
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nsAutoCString asciiSpec;
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rv = innerURI->GetAsciiSpec(asciiSpec);
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if (NS_FAILED(rv)) return rv;
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// put back our scheme and construct a simple-uri wrapper
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asciiSpec.Insert(VIEW_SOURCE ":", 0);
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nsCOMPtr<nsIURI> uri;
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rv = NS_MutateURI(new nsSimpleNestedURI::Mutator())
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.Apply(&nsINestedURIMutator::Init, innerURI)
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.SetSpec(asciiSpec)
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.Finalize(uri);
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if (NS_FAILED(rv)) {
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return rv;
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}
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uri.swap(*aResult);
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return rv;
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}
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NS_IMETHODIMP
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nsViewSourceHandler::NewChannel(nsIURI* uri, nsILoadInfo* aLoadInfo,
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nsIChannel** result) {
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NS_ENSURE_ARG_POINTER(uri);
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RefPtr<nsViewSourceChannel> channel = new nsViewSourceChannel();
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nsresult rv = channel->Init(uri, aLoadInfo);
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if (NS_FAILED(rv)) {
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return rv;
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}
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*result = channel.forget().downcast<nsIViewSourceChannel>().take();
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return NS_OK;
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}
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nsresult nsViewSourceHandler::NewSrcdocChannel(nsIURI* aURI, nsIURI* aBaseURI,
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const nsAString& aSrcdoc,
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nsILoadInfo* aLoadInfo,
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nsIChannel** outChannel) {
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NS_ENSURE_ARG_POINTER(aURI);
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RefPtr<nsViewSourceChannel> channel = new nsViewSourceChannel();
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nsresult rv = channel->InitSrcdoc(aURI, aBaseURI, aSrcdoc, aLoadInfo);
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if (NS_FAILED(rv)) {
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return rv;
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}
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*outChannel = static_cast<nsIViewSourceChannel*>(channel.forget().take());
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return NS_OK;
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}
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NS_IMETHODIMP
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nsViewSourceHandler::AllowPort(int32_t port, const char* scheme,
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bool* _retval) {
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// don't override anything.
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*_retval = false;
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return NS_OK;
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}
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nsViewSourceHandler::nsViewSourceHandler() { gInstance = this; }
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nsViewSourceHandler::~nsViewSourceHandler() { gInstance = nullptr; }
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nsViewSourceHandler* nsViewSourceHandler::gInstance = nullptr;
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nsViewSourceHandler* nsViewSourceHandler::GetInstance() { return gInstance; }
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} // namespace net
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} // namespace mozilla
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