1 /*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "proxy_authorization_uri_config.h"
17 #include <fstream>
18 #include <sstream>
19 #include <unistd.h>
20
21 #include "accesstoken_kit.h"
22 #include "parameters.h"
23 #include "hilog_wrapper.h"
24
25 namespace OHOS {
26 namespace AAFwk {
27 namespace {
28 const std::string CONFIG_PATH_DEFAULT = "/system/etc/proxy_authorization_uri.json";
29 const std::string CONFIG_PATH_PREFIX = "/system/variant/";
30 const std::string CONFIG_PATH = "/base/etc/proxy_authorization_uri.json";
31
32 const std::string PROXY_AUTHORIZATION_URI_NAME = "proxyAuthorizationUri";
33 const std::string BUNDLE_NAME = "bundleName";
34 const std::string PROCESS_NAME = "processName";
35 }
36
LoadConfiguration()37 void ProxyAuthorizationUriConfig::LoadConfiguration()
38 {
39 HILOG_DEBUG("call");
40 nlohmann::json jsonBuf;
41 std::string deviceType = OHOS::system::GetDeviceType();
42 if (deviceType == "2in1") {
43 deviceType = "pc";
44 }
45 std::string configPath = CONFIG_PATH_PREFIX + deviceType + CONFIG_PATH;
46 if (ReadFileInfoJson(configPath, jsonBuf)) {
47 LoadAllowedList(jsonBuf);
48 return;
49 }
50 nlohmann::json jsonBufDefault;
51 if (ReadFileInfoJson(CONFIG_PATH_DEFAULT, jsonBufDefault)) {
52 LoadAllowedList(jsonBufDefault);
53 }
54 }
55
IsAuthorizationUriAllowed(uint32_t fromTokenId)56 bool ProxyAuthorizationUriConfig::IsAuthorizationUriAllowed(uint32_t fromTokenId)
57 {
58 Security::AccessToken::NativeTokenInfo nativeInfo;
59 auto result = Security::AccessToken::AccessTokenKit::GetNativeTokenInfo(fromTokenId, nativeInfo);
60 if (result == Security::AccessToken::AccessTokenKitRet::RET_SUCCESS &&
61 processNameAllowedList_.find(nativeInfo.processName) != processNameAllowedList_.end()) {
62 return true;
63 }
64
65 Security::AccessToken::HapTokenInfo hapInfo;
66 result = Security::AccessToken::AccessTokenKit::GetHapTokenInfo(fromTokenId, hapInfo);
67 if (result == Security::AccessToken::AccessTokenKitRet::RET_SUCCESS &&
68 bundleNameAllowedList_.find(hapInfo.bundleName) != bundleNameAllowedList_.end()) {
69 return true;
70 }
71 return false;
72 }
73
LoadAllowedList(const nlohmann::json & object)74 void ProxyAuthorizationUriConfig::LoadAllowedList(const nlohmann::json &object)
75 {
76 if (!object.contains(PROXY_AUTHORIZATION_URI_NAME)) {
77 HILOG_ERROR("Proxy authorization uri config not existed.");
78 return;
79 }
80
81 for (auto &item : object.at(PROXY_AUTHORIZATION_URI_NAME).items()) {
82 const nlohmann::json& jsonObject = item.value();
83 if (jsonObject.contains(BUNDLE_NAME) && jsonObject.at(BUNDLE_NAME).is_string()) {
84 std::string bundleName = jsonObject.at(BUNDLE_NAME).get<std::string>();
85 bundleNameAllowedList_.insert(bundleName);
86 }
87 if (jsonObject.contains(PROCESS_NAME) && jsonObject.at(PROCESS_NAME).is_string()) {
88 std::string processName = jsonObject.at(PROCESS_NAME).get<std::string>();
89 processNameAllowedList_.insert(processName);
90 }
91 }
92 }
93
ReadFileInfoJson(const std::string & filePath,nlohmann::json & jsonBuf)94 bool ProxyAuthorizationUriConfig::ReadFileInfoJson(const std::string &filePath, nlohmann::json &jsonBuf)
95 {
96 if (access(filePath.c_str(), F_OK) != 0) {
97 HILOG_DEBUG("%{public}s, not existed", filePath.c_str());
98 return false;
99 }
100
101 std::fstream in;
102 char errBuf[256];
103 errBuf[0] = '\0';
104 in.open(filePath, std::ios_base::in);
105 if (!in.is_open()) {
106 strerror_r(errno, errBuf, sizeof(errBuf));
107 HILOG_ERROR("the file cannot be open due to %{public}s", errBuf);
108 return false;
109 }
110
111 in.seekg(0, std::ios::end);
112 int64_t size = in.tellg();
113 if (size <= 0) {
114 HILOG_ERROR("the file is an empty file");
115 in.close();
116 return false;
117 }
118
119 in.seekg(0, std::ios::beg);
120 jsonBuf = nlohmann::json::parse(in, nullptr, false);
121 in.close();
122 if (jsonBuf.is_discarded()) {
123 HILOG_ERROR("bad profile file");
124 return false;
125 }
126
127 return true;
128 }
129 }
130 }