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| 1 // Copyright 2013 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 #include "components/safe_json_parser/safe_json_parser.h" | |
| 6 | |
| 7 #include <string> | |
| 8 | |
| 9 #include "base/strings/utf_string_conversions.h" | |
| 10 #include "base/thread_task_runner_handle.h" | |
| 11 #include "base/tuple.h" | |
| 12 #include "base/values.h" | |
| 13 #include "components/safe_json_parser/safe_json_parser_messages.h" | |
| 14 #include "content/public/browser/browser_thread.h" | |
| 15 #include "content/public/browser/utility_process_host.h" | |
| 16 #include "grit/components_strings.h" | |
| 17 #include "ipc/ipc_message_macros.h" | |
| 18 #include "ui/base/l10n/l10n_util.h" | |
| 19 | |
| 20 using content::BrowserThread; | |
| 21 using content::UtilityProcessHost; | |
| 22 | |
| 23 namespace safe_json_parser { | |
| 24 | |
| 25 SafeJsonParser::SafeJsonParser(const std::string& unsafe_json, | |
| 26 const SuccessCallback& success_callback, | |
| 27 const ErrorCallback& error_callback) | |
| 28 : unsafe_json_(unsafe_json), | |
| 29 success_callback_(success_callback), | |
| 30 error_callback_(error_callback) { | |
| 31 } | |
| 32 | |
| 33 void SafeJsonParser::Start() { | |
| 34 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 35 BrowserThread::PostTask( | |
| 36 BrowserThread::IO, FROM_HERE, | |
| 37 base::Bind(&SafeJsonParser::StartWorkOnIOThread, this)); | |
| 38 } | |
| 39 | |
| 40 SafeJsonParser::~SafeJsonParser() { | |
| 41 } | |
| 42 | |
| 43 void SafeJsonParser::StartWorkOnIOThread() { | |
| 44 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 45 UtilityProcessHost* host = UtilityProcessHost::Create( | |
| 46 this, base::ThreadTaskRunnerHandle::Get().get()); | |
| 47 host->SetName( | |
| 48 l10n_util::GetStringUTF16(IDS_UTILITY_PROCESS_JSON_PARSER_NAME)); | |
| 49 host->Send(new SafeJsonParserMsg_ParseJSON(unsafe_json_)); | |
| 50 } | |
| 51 | |
| 52 void SafeJsonParser::OnJSONParseSucceeded(const base::ListValue& wrapper) { | |
| 53 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 54 const base::Value* value = NULL; | |
| 55 CHECK(wrapper.Get(0, &value)); | |
| 56 | |
| 57 parsed_json_.reset(value->DeepCopy()); | |
| 58 ReportResults(); | |
| 59 } | |
| 60 | |
| 61 void SafeJsonParser::OnJSONParseFailed(const std::string& error_message) { | |
| 62 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 63 error_ = error_message; | |
| 64 ReportResults(); | |
| 65 } | |
| 66 | |
| 67 void SafeJsonParser::ReportResults() { | |
| 68 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 69 | |
| 70 BrowserThread::PostTask( | |
| 71 BrowserThread::UI, FROM_HERE, | |
| 72 base::Bind(&SafeJsonParser::ReportResultOnUIThread, this)); | |
| 73 } | |
| 74 | |
| 75 void SafeJsonParser::ReportResultOnUIThread() { | |
| 76 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 77 if (error_.empty() && parsed_json_) { | |
| 78 if (!success_callback_.is_null()) | |
| 79 success_callback_.Run(parsed_json_.Pass()); | |
| 80 } else { | |
| 81 if (!error_callback_.is_null()) | |
| 82 error_callback_.Run(error_); | |
| 83 } | |
| 84 } | |
| 85 | |
| 86 bool SafeJsonParser::OnMessageReceived(const IPC::Message& message) { | |
| 87 bool handled = true; | |
| 88 IPC_BEGIN_MESSAGE_MAP(SafeJsonParser, message) | |
| 89 IPC_MESSAGE_HANDLER(SafeJsonParserHostMsg_ParseJSON_Succeeded, | |
| 90 OnJSONParseSucceeded) | |
| 91 IPC_MESSAGE_HANDLER(SafeJsonParserHostMsg_ParseJSON_Failed, | |
| 92 OnJSONParseFailed) | |
| 93 IPC_MESSAGE_UNHANDLED(handled = false) | |
| 94 IPC_END_MESSAGE_MAP() | |
| 95 return handled; | |
| 96 } | |
| 97 | |
| 98 } // namespace safe_json_parser | |
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Chromium Code Reviews
Issue 1211793002:
Rename safe_json_parser component to safe_json. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master