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      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 #include "base/android/build_info.h"
      6 
      7 #include <string>
      8 
      9 #include "base/android/jni_android.h"
     10 #include "base/android/jni_array.h"
     11 #include "base/android/scoped_java_ref.h"
     12 #include "base/logging.h"
     13 #include "base/memory/singleton.h"
     14 #include "base/strings/string_number_conversions.h"
     15 #include "jni/BuildInfo_jni.h"
     16 
     17 namespace base {
     18 namespace android {
     19 
     20 namespace {
     21 
     22 // We are leaking these strings.
     23 const char* StrDupParam(const std::vector<std::string>& params, int index) {
     24   return strdup(params[index].c_str());
     25 }
     26 
     27 int GetIntParam(const std::vector<std::string>& params, int index) {
     28   int ret = 0;
     29   bool success = StringToInt(params[index], &ret);
     30   DCHECK(success);
     31   return ret;
     32 }
     33 
     34 }  // namespace
     35 
     36 struct BuildInfoSingletonTraits {
     37   static BuildInfo* New() {
     38     JNIEnv* env = AttachCurrentThread();
     39     ScopedJavaLocalRef<jobjectArray> params_objs = Java_BuildInfo_getAll(env);
     40     std::vector<std::string> params;
     41     AppendJavaStringArrayToStringVector(env, params_objs.obj(), &params);
     42     return new BuildInfo(params);
     43   }
     44 
     45   static void Delete(BuildInfo* x) {
     46     // We're leaking this type, see kRegisterAtExit.
     47     NOTREACHED();
     48   }
     49 
     50   static const bool kRegisterAtExit = false;
     51 #if DCHECK_IS_ON()
     52   static const bool kAllowedToAccessOnNonjoinableThread = true;
     53 #endif
     54 };
     55 
     56 BuildInfo::BuildInfo(const std::vector<std::string>& params)
     57     : brand_(StrDupParam(params, 0)),
     58       device_(StrDupParam(params, 1)),
     59       android_build_id_(StrDupParam(params, 2)),
     60       manufacturer_(StrDupParam(params, 3)),
     61       model_(StrDupParam(params, 4)),
     62       sdk_int_(GetIntParam(params, 5)),
     63       build_type_(StrDupParam(params, 6)),
     64       board_(StrDupParam(params, 7)),
     65       host_package_name_(StrDupParam(params, 8)),
     66       host_version_code_(StrDupParam(params, 9)),
     67       host_package_label_(StrDupParam(params, 10)),
     68       package_name_(StrDupParam(params, 11)),
     69       package_version_code_(StrDupParam(params, 12)),
     70       package_version_name_(StrDupParam(params, 13)),
     71       android_build_fp_(StrDupParam(params, 14)),
     72       gms_version_code_(StrDupParam(params, 15)),
     73       installer_package_name_(StrDupParam(params, 16)),
     74       abi_name_(StrDupParam(params, 17)),
     75       firebase_app_id_(StrDupParam(params, 18)),
     76       custom_themes_(StrDupParam(params, 19)),
     77       resources_version_(StrDupParam(params, 20)),
     78       extracted_file_suffix_(params[21]),
     79       is_at_least_p_(GetIntParam(params, 22)) {}
     80 
     81 // static
     82 BuildInfo* BuildInfo::GetInstance() {
     83   return Singleton<BuildInfo, BuildInfoSingletonTraits >::get();
     84 }
     85 
     86 }  // namespace android
     87 }  // namespace base
     88