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