components/cronet/android/cronet_library_loader.cc

   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 "components/cronet/android/cronet_library_loader.h"
   6
   7 #include <jni.h>
   8
   9 #include "base/android/base_jni_onload.h"
  10 #include "base/android/base_jni_registrar.h"
  11 #include "base/android/jni_android.h"
  12 #include "base/android/jni_registrar.h"
  13 #include "base/android/jni_utils.h"
  14 #include "base/android/library_loader/library_loader_hooks.h"
  15 #include "base/command_line.h"
  16 #include "base/logging.h"
  17 #include "base/message_loop/message_loop.h"
  18 #include "components/cronet/android/chromium_url_request.h"
  19 #include "components/cronet/android/chromium_url_request_context.h"
  20 #include "components/cronet/android/cronet_histogram_manager.h"
  21 #include "components/cronet/android/cronet_upload_data_stream_adapter.h"
  22 #include "components/cronet/android/cronet_url_request_adapter.h"
  23 #include "components/cronet/android/cronet_url_request_context_adapter.h"
  24 #include "components/cronet/version.h"
  25 #include "jni/CronetLibraryLoader_jni.h"
  26 #include "net/android/net_jni_registrar.h"
  27 #include "net/android/network_change_notifier_factory_android.h"
  28 #include "net/base/network_change_notifier.h"
  29 #include "url/android/url_jni_registrar.h"
  30 #include "url/url_util.h"
  31
  32 #if !defined(USE_ICU_ALTERNATIVES_ON_ANDROID)
  33 #include "base/i18n/icu_util.h"
  34 #endif
  35
  36 namespace cronet {
  37 namespace {
  38
  39 const base::android::RegistrationMethod kCronetRegisteredMethods[] = {
  40     {"BaseAndroid", base::android::RegisterJni},
  41     {"ChromiumUrlRequest", ChromiumUrlRequestRegisterJni},
  42     {"ChromiumUrlRequestContext", ChromiumUrlRequestContextRegisterJni},
  43     {"CronetHistogramManager", CronetHistogramManagerRegisterJni},
  44     {"CronetLibraryLoader", RegisterNativesImpl},
  45     {"CronetUploadDataStreamAdapter",
  46      CronetUploadDataStreamAdapterRegisterJni},
  47     {"CronetUrlRequestAdapter", CronetUrlRequestAdapterRegisterJni},
  48     {"CronetUrlRequestContextAdapter",
  49      CronetUrlRequestContextAdapterRegisterJni},
  50     {"NetAndroid", net::android::RegisterJni},
  51     {"UrlAndroid", url::android::RegisterJni},
  52 };
  53
  54 // MessageLoop on the main thread, which is where objects that receive Java
  55 // notifications generally live.
  56 base::MessageLoop* g_main_message_loop = nullptr;
  57
  58 net::NetworkChangeNotifier* g_network_change_notifier = nullptr;
  59
  60 bool RegisterJNI(JNIEnv* env) {
  61   return base::android::RegisterNativeMethods(
  62       env, kCronetRegisteredMethods, arraysize(kCronetRegisteredMethods));
  63 }
  64
  65 bool Init() {
  66   url::Initialize();
  67   return true;
  68 }
  69
  70 }  // namespace
  71
  72 // Checks the available version of JNI. Also, caches Java reflection artifacts.
  73 jint CronetOnLoad(JavaVM* vm, void* reserved) {
  74   std::vector<base::android::RegisterCallback> register_callbacks;
  75   register_callbacks.push_back(base::Bind(&RegisterJNI));
  76   std::vector<base::android::InitCallback> init_callbacks;
  77   init_callbacks.push_back(base::Bind(&Init));
  78   if (!base::android::OnJNIOnLoadRegisterJNI(vm, register_callbacks) ||
  79       !base::android::OnJNIOnLoadInit(init_callbacks)) {
  80     return -1;
  81   }
  82   return JNI_VERSION_1_6;
  83 }
  84
  85 void CronetOnUnLoad(JavaVM* jvm, void* reserved) {
  86   base::android::LibraryLoaderExitHook();
  87 }
  88
  89 void CronetInitApplicationContext(JNIEnv* env,
  90                                   jclass jcaller,
  91                                   jobject japp_context) {
  92   // Set application context.
  93   base::android::ScopedJavaLocalRef<jobject> scoped_app_context(env,
  94                                                                 japp_context);
  95   base::android::InitApplicationContext(env, scoped_app_context);
  96 }
  97
  98 void CronetInitOnMainThread(JNIEnv* env, jclass jcaller) {
  99 #if !defined(USE_ICU_ALTERNATIVES_ON_ANDROID)
 100   base::i18n::InitializeICU();
 101 #endif
 102
 103   // TODO(bengr): Remove once Data Reduction Proxy no longer needs this for
 104   // configuration information.
 105   base::CommandLine::Init(0, nullptr);
 106   DCHECK(!base::MessageLoop::current());
 107   DCHECK(!g_main_message_loop);
 108   g_main_message_loop = new base::MessageLoopForUI();
 109   base::MessageLoopForUI::current()->Start();
 110   DCHECK(!g_network_change_notifier);
 111   net::NetworkChangeNotifier::SetFactory(
 112       new net::NetworkChangeNotifierFactoryAndroid());
 113   g_network_change_notifier = net::NetworkChangeNotifier::Create();
 114 }
 115
 116 jstring GetCronetVersion(JNIEnv* env, jclass jcaller) {
 117   return base::android::ConvertUTF8ToJavaString(env, CRONET_VERSION).Release();
 118 }
 119
 120 }  // namespace cronet