1 // Copyright (c) 2011 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 "chrome/browser/chromeos/name_value_pairs_parser.h" 6 7 #include "base/command_line.h" 8 #include "base/logging.h" 9 #include "base/process_util.h" 10 #include "base/string_tokenizer.h" 11 #include "base/string_util.h" 12 #include "base/threading/thread_restrictions.h" 13 14 namespace chromeos { // NOLINT 15 16 namespace { 17 18 const char kQuoteChars[] = "\""; 19 20 } // namespace 21 22 NameValuePairsParser::NameValuePairsParser(NameValueMap* map) 23 : map_(map) { 24 } 25 26 void NameValuePairsParser::AddNameValuePair(const std::string& key, 27 const std::string& value) { 28 (*map_)[key] = value; 29 VLOG(1) << "name: " << key << ", value: " << value; 30 } 31 32 bool NameValuePairsParser::ParseNameValuePairs(const std::string& in_string, 33 const std::string& eq, 34 const std::string& delim) { 35 // Set up the pair tokenizer. 36 StringTokenizer pair_toks(in_string, delim); 37 pair_toks.set_quote_chars(kQuoteChars); 38 // Process token pairs. 39 while (pair_toks.GetNext()) { 40 std::string pair(pair_toks.token()); 41 if (pair.find(eq) == 0) { 42 LOG(WARNING) << "Empty key: '" << pair << "'. Aborting."; 43 return false; 44 } 45 StringTokenizer keyvalue(pair, eq); 46 std::string key,value; 47 if (keyvalue.GetNext()) { 48 TrimString(keyvalue.token(), kQuoteChars, &key); 49 if (keyvalue.GetNext()) { 50 TrimString(keyvalue.token(), kQuoteChars, &value); 51 if (keyvalue.GetNext()) { 52 LOG(WARNING) << "Multiple key tokens: '" << pair << "'. Aborting."; 53 return false; 54 } 55 } 56 } 57 if (key.empty()) { 58 LOG(WARNING) << "Invalid token pair: '" << pair << "'. Aborting."; 59 return false; 60 } 61 AddNameValuePair(key, value); 62 } 63 return true; 64 } 65 66 bool NameValuePairsParser::GetSingleValueFromTool(int argc, 67 const char* argv[], 68 const std::string& key) { 69 CommandLine command_line(argc, argv); 70 std::string output_string; 71 // TODO(stevenjb,satorux): Make this non blocking: crosbug.com/5603. 72 base::ThreadRestrictions::ScopedAllowIO allow_io_for_thread_join; 73 if (argc < 1 || !base::GetAppOutput(command_line, &output_string)) { 74 LOG(WARNING) << "Error excuting: " << command_line.command_line_string(); 75 return false; 76 } 77 TrimWhitespaceASCII(output_string, TRIM_ALL, &output_string); 78 AddNameValuePair(key, output_string); 79 return true; 80 } 81 82 bool NameValuePairsParser::ParseNameValuePairsFromTool( 83 int argc, 84 const char* argv[], 85 const std::string& eq, 86 const std::string& delim) { 87 CommandLine command_line(argc, argv); 88 std::string output_string; 89 // TODO(stevenjb,satorux): Make this non blocking: crosbug.com/5603. 90 base::ThreadRestrictions::ScopedAllowIO allow_io_for_thread_join; 91 if (argc < 1 || !base::GetAppOutput(command_line, &output_string)) { 92 LOG(WARNING) << "Error excuting: " << command_line.command_line_string(); 93 return false; 94 } 95 if (!ParseNameValuePairs(output_string, eq, delim)) { 96 LOG(WARNING) << "Error parsing values while excuting: " 97 << command_line.command_line_string(); 98 return false; 99 } 100 return true; 101 } 102 103 } // namespace chromeos 104
