1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Simple implementation of a data: protocol handler. 6 7 #include "net/url_request/url_request_data_job.h" 8 9 #include "net/base/data_url.h" 10 #include "net/base/net_errors.h" 11 #include "net/http/http_response_headers.h" 12 #include "url/gurl.h" 13 14 namespace net { 15 16 int URLRequestDataJob::BuildResponse(const GURL& url, 17 std::string* mime_type, 18 std::string* charset, 19 std::string* data, 20 HttpResponseHeaders* headers) { 21 if (!net::DataURL::Parse(url, mime_type, charset, data)) 22 return net::ERR_INVALID_URL; 23 24 // |mime_type| set by net::DataURL::Parse() is guaranteed to be in 25 // token "/" token 26 // form. |charset| is also guaranteed to be a token. 27 28 DCHECK(!mime_type->empty()); 29 DCHECK(!charset->empty()); 30 31 if (headers) { 32 headers->ReplaceStatusLine("HTTP/1.1 200 OK"); 33 // "charset" in the Content-Type header is specified explicitly to follow 34 // the "token" ABNF in the HTTP spec. When DataURL::Parse() call is 35 // successful, it's guaranteed that the string in |charset| follows the 36 // "token" ABNF. 37 std::string content_type_header = 38 "Content-Type: " + *mime_type + ";charset=" + *charset; 39 headers->AddHeader(content_type_header); 40 headers->AddHeader("Access-Control-Allow-Origin: *"); 41 } 42 43 return net::OK; 44 } 45 46 URLRequestDataJob::URLRequestDataJob( 47 URLRequest* request, NetworkDelegate* network_delegate) 48 : URLRequestSimpleJob(request, network_delegate) { 49 } 50 51 int URLRequestDataJob::GetData(std::string* mime_type, 52 std::string* charset, 53 std::string* data, 54 const CompletionCallback& callback) const { 55 // Check if data URL is valid. If not, don't bother to try to extract data. 56 // Otherwise, parse the data from the data URL. 57 const GURL& url = request_->url(); 58 if (!url.is_valid()) 59 return ERR_INVALID_URL; 60 61 // TODO(tyoshino): Get the headers and export via 62 // URLRequestJob::GetResponseInfo(). 63 return BuildResponse(url, mime_type, charset, data, NULL); 64 } 65 66 URLRequestDataJob::~URLRequestDataJob() { 67 } 68 69 } // namespace net 70
