blob: 01267f3e9136106ce3c0bebad5d70a21c1561809 [file] [log] [blame]
// Copyright 2015 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "cobalt/dom_parser/html_decoder.h"
#include "cobalt/csp/content_security_policy.h"
#include "cobalt/dom_parser/libxml_html_parser_wrapper.h"
#include "cobalt/loader/net_fetcher.h"
#include "cobalt/web/csp_delegate.h"
namespace cobalt {
namespace dom_parser {
HTMLDecoder::HTMLDecoder(
const scoped_refptr<dom::Document>& document,
const scoped_refptr<dom::Node>& parent_node,
const scoped_refptr<dom::Node>& reference_node,
const int dom_max_element_depth, const base::SourceLocation& input_location,
const loader::Decoder::OnCompleteFunction& load_complete_callback,
const bool should_run_scripts, const csp::CSPHeaderPolicy require_csp)
: libxml_html_parser_wrapper_(new LibxmlHTMLParserWrapper(
document, parent_node, reference_node, dom_max_element_depth,
input_location, load_complete_callback, should_run_scripts)),
document_(document),
require_csp_(require_csp),
load_complete_callback_(load_complete_callback) {}
HTMLDecoder::~HTMLDecoder() {}
loader::LoadResponseType HTMLDecoder::OnResponseStarted(
loader::Fetcher* fetcher,
const scoped_refptr<net::HttpResponseHeaders>& headers) {
DCHECK(headers);
// Only NetFetchers can call this, since only they have
// the response headers.
loader::NetFetcher* net_fetcher =
base::polymorphic_downcast<loader::NetFetcher*>(fetcher);
net::URLFetcher* url_fetcher = net_fetcher->url_fetcher();
if (url_fetcher->GetURL() != url_fetcher->GetOriginalURL()) {
document_->NotifyUrlChanged(url_fetcher->GetURL());
}
if (headers->HasHeaderValue("cobalt-jit", "disable")) {
document_->DisableJit();
} else if (headers->HasHeader("cobalt-jit")) {
std::string value;
headers->GetNormalizedHeader("cobalt-jit", &value);
LOG(WARNING) << "Invalid value for \"cobalt-jit\" header: " << value;
}
csp::ResponseHeaders csp_headers(headers);
if (document_->GetCSPDelegate()->OnReceiveHeaders(csp_headers) ||
require_csp_ == csp::kCSPOptional) {
return loader::kLoadResponseContinue;
} else {
LOG(ERROR) << "Failure receiving Content Security Policy headers "
"for URL: "
<< url_fetcher->GetURL() << ".";
LOG(ERROR) << "The server *must* send CSP headers or Cobalt will not "
"load the page.";
return loader::kLoadResponseAbort;
}
}
void HTMLDecoder::DecodeChunk(const char* data, size_t size) {
DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
libxml_html_parser_wrapper_->DecodeChunk(data, size);
}
void HTMLDecoder::Finish() {
DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
libxml_html_parser_wrapper_->Finish();
if (!load_complete_callback_.is_null()) {
load_complete_callback_.Run(base::nullopt);
}
}
} // namespace dom_parser
} // namespace cobalt