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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Simple implementation of a data: protocol handler.
#include "net/url_request/url_request_data_job.h"
#include "net/base/data_url.h"
#include "net/base/net_errors.h"
#include "net/http/http_response_headers.h"
#include "url/gurl.h"
namespace net {
int URLRequestDataJob::BuildResponse(const GURL& url,
std::string* mime_type,
std::string* charset,
std::string* data,
HttpResponseHeaders* headers) {
if (!DataURL::Parse(url, mime_type, charset, data))
return ERR_INVALID_URL;
// |mime_type| set by DataURL::Parse() is guaranteed to be in
// token "/" token
// form. |charset| is also guaranteed to be a token.
DCHECK(!mime_type->empty());
DCHECK(!charset->empty());
if (headers) {
headers->ReplaceStatusLine("HTTP/1.1 200 OK");
// "charset" in the Content-Type header is specified explicitly to follow
// the "token" ABNF in the HTTP spec. When DataURL::Parse() call is
// successful, it's guaranteed that the string in |charset| follows the
// "token" ABNF.
std::string content_type_header =
"Content-Type: " + *mime_type + ";charset=" + *charset;
headers->AddHeader(content_type_header);
headers->AddHeader("Access-Control-Allow-Origin: *");
}
return OK;
}
URLRequestDataJob::URLRequestDataJob(
URLRequest* request, NetworkDelegate* network_delegate)
: URLRequestSimpleJob(request, network_delegate) {
}
int URLRequestDataJob::GetData(std::string* mime_type,
std::string* charset,
std::string* data,
const CompletionCallback& callback) const {
// Check if data URL is valid. If not, don't bother to try to extract data.
// Otherwise, parse the data from the data URL.
const GURL& url = request_->url();
if (!url.is_valid())
return ERR_INVALID_URL;
// TODO(tyoshino): Get the headers and export via
// URLRequestJob::GetResponseInfo().
return BuildResponse(url, mime_type, charset, data, NULL);
}
URLRequestDataJob::~URLRequestDataJob() {
}
} // namespace net
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