1 // Copyright 2014 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 "mojo/tools/package_manager/manifest.h" 6 7 #include "base/files/file_util.h" 8 #include "base/json/json_reader.h" 9 #include "base/values.h" 10 #include "url/gurl.h" 11 12 namespace mojo { 13 14 Manifest::Manifest() { 15 } 16 17 Manifest::~Manifest() { 18 } 19 20 bool Manifest::Parse(const std::string& str, std::string* err_msg) { 21 int err_code = base::JSONReader::JSON_NO_ERROR; 22 scoped_ptr<base::Value> root(base::JSONReader::ReadAndReturnError( 23 str, 24 base::JSON_ALLOW_TRAILING_COMMAS, 25 &err_code, err_msg)); 26 if (err_code != base::JSONReader::JSON_NO_ERROR) 27 return false; 28 29 const base::DictionaryValue* root_dict; 30 if (!root->GetAsDictionary(&root_dict)) { 31 *err_msg = "Manifest is not a dictionary."; 32 return false; 33 } 34 35 if (!PopulateDeps(root_dict, err_msg)) 36 return false; 37 38 return true; 39 } 40 41 bool Manifest::ParseFromFile(const base::FilePath& file_name, 42 std::string* err_msg) { 43 std::string data; 44 if (!base::ReadFileToString(file_name, &data)) { 45 *err_msg = "Couldn't read manifest file " + file_name.AsUTF8Unsafe(); 46 return false; 47 } 48 return Parse(data, err_msg); 49 } 50 51 bool Manifest::PopulateDeps(const base::DictionaryValue* root, 52 std::string* err_msg) { 53 const base::Value* deps_value; 54 if (!root->Get("deps", &deps_value)) 55 return true; // No deps, that's OK. 56 57 const base::ListValue* deps; 58 if (!deps_value->GetAsList(&deps)) { 59 *err_msg = "Deps is not a list. Should be \"deps\": [ \"...\", \"...\" ]"; 60 return false; 61 } 62 63 deps_.reserve(deps->GetSize()); 64 for (size_t i = 0; i < deps->GetSize(); i++) { 65 std::string cur_dep; 66 if (!deps->GetString(i, &cur_dep)) { 67 *err_msg = "Dependency list item wasn't a string."; 68 return false; 69 } 70 71 GURL cur_url(cur_dep); 72 if (!cur_url.is_valid()) { 73 *err_msg = "Dependency entry isn't a valid URL: " + cur_dep; 74 return false; 75 } 76 77 deps_.push_back(cur_url); 78 } 79 80 return true; 81 } 82 83 } // namespace mojo 84
