Usage of new API, cleanups (reduced)

jni/AbpEngine.cpp

-/*
- * This file is part of Adblock Plus <http://adblockplus.org/>,
- * Copyright (C) 2006-2014 Eyeo GmbH
- *
- * Adblock Plus is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 3 as
- * published by the Free Software Foundation.
- *
- * Adblock Plus is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <jni.h>
-#include <AdblockPlus.h>
-#include "AndroidLogSystem.h"
-#include "AndroidWebRequest.h"
-#include "Utils.h"
-#include "Debug.h"
-
-JavaVM* globalJvm;
-AdblockPlus::FilterEngine* filterEngine;
-jobject jniObject;
-bool manualUpdate = false;
-
-extern "C"
-{
-  JNIEXPORT void JNICALL Java_org_adblockplus_android_ABPEngine_initialize(
-    JNIEnv *pEnv, jobject object, jstring basePath, jstring version,
-    jstring sdkVersion, jstring locale, jboolean developmentBuild);
-  JNIEXPORT void JNICALL Java_org_adblockplus_android_ABPEngine_release(JNIEnv *pEnv, jobject);
-  JNIEXPORT jboolean JNICALL Java_org_adblockplus_android_ABPEngine_isFirstRun(JNIEnv *pEnv, jobject);
-  JNIEXPORT jobjectArray JNICALL Java_org_adblockplus_android_ABPEngine_getListedSubscriptions(JNIEnv *pEnv, jobject);
-  JNIEXPORT jobjectArray JNICALL Java_org_adblockplus_android_ABPEngine_getRecommendedSubscriptions(JNIEnv *pEnv, jobject);
-  JNIEXPORT void JNICALL Java_org_adblockplus_android_ABPEngine_addSubscription(JNIEnv *pEnv, jobject, jstring url);
-  JNIEXPORT void JNICALL Java_org_adblockplus_android_ABPEngine_removeSubscription(JNIEnv *pEnv, jobject, jstring url);
-  JNIEXPORT void JNICALL Java_org_adblockplus_android_ABPEngine_refreshSubscription(JNIEnv *pEnv, jobject, jstring url);
-  JNIEXPORT void JNICALL Java_org_adblockplus_android_ABPEngine_actualizeSubscriptionStatus(JNIEnv *pEnv, jobject, jstring url);
-  JNIEXPORT void JNICALL Java_org_adblockplus_android_ABPEngine_setAcceptableAdsEnabled(JNIEnv *pEnv, jobject, jboolean enabled);
-  JNIEXPORT jstring JNICALL Java_org_adblockplus_android_ABPEngine_getDocumentationLink(
-      JNIEnv *env, jobject object);
-  JNIEXPORT jboolean JNICALL Java_org_adblockplus_android_ABPEngine_matches(
-      JNIEnv *pEnv, jobject, jstring url, jstring contentType, jobjectArray documentUrls);
-  JNIEXPORT jobjectArray JNICALL Java_org_adblockplus_android_ABPEngine_getSelectorsForDomain(JNIEnv *pEnv, jobject, jstring domain);
-  JNIEXPORT void JNICALL Java_org_adblockplus_android_ABPEngine_checkUpdates(JNIEnv *pEnv, jobject);
-};
-
-jobjectArray subscriptionsAsJavaArray(JNIEnv *pEnv, std::vector<AdblockPlus::SubscriptionPtr> subscriptions)
-{
-  D(D_WARN, "subscriptionsAsJavaArray()");
-  static jclass cls = reinterpret_cast<jclass>(pEnv->NewGlobalRef(pEnv->FindClass("org/adblockplus/android/Subscription")));
-  static jmethodID cid = pEnv->GetMethodID(cls, "<init>", "()V");
-  static jfieldID ftitle = pEnv->GetFieldID(cls, "title", "Ljava/lang/String;");
-  static jfieldID furl = pEnv->GetFieldID(cls, "url", "Ljava/lang/String;");
-
-  const std::string surl = filterEngine->GetPref("subscriptions_exceptionsurl")->AsString();
-  AdblockPlus::SubscriptionPtr acceptableAdsSubscription = filterEngine->GetSubscription(surl);
-
-  int size = subscriptions.size();
-  for (std::vector<AdblockPlus::SubscriptionPtr>::const_iterator it = subscriptions.begin();
-       it != subscriptions.end(); it++)
-  {
-    if (*acceptableAdsSubscription == **it)
-      size--;
-  }
-
-  const jobjectArray ret = (jobjectArray) pEnv->NewObjectArray(size, cls, NULL);
-
-  int i = 0;
-  for (std::vector<AdblockPlus::SubscriptionPtr>::const_iterator it = subscriptions.begin();
-       it != subscriptions.end(); it++)
-  {
-    if (*acceptableAdsSubscription == **it)
-      continue;
-    jobject subscription = pEnv->NewObject(cls, cid);
-    pEnv->SetObjectField(subscription, ftitle, pEnv->NewStringUTF((*it)->GetProperty("title")->AsString().c_str()));
-    pEnv->SetObjectField(subscription, furl, pEnv->NewStringUTF((*it)->GetProperty("url")->AsString().c_str()));
-    pEnv->SetObjectArrayElement(ret, i, subscription);
-    i++;
-  }
-
-  return ret;
-}
-
-void UpdateSubscriptionStatus(const AdblockPlus::SubscriptionPtr subscription)
-{
-  D(D_WARN, "UpdateSubscriptionStatus()");
-
-  std::string downloadStatus = subscription->GetProperty("downloadStatus")->IsNull() ? "" : subscription->GetProperty("downloadStatus")->AsString();
-  int64_t lastDownload = subscription->GetProperty("lastDownload")->AsInt();
-
-  std::string status = "synchronize_never";
-  int64_t time = 0;
-
-  if (subscription->IsUpdating())
-  {
-    status = "synchronize_in_progress";
-  }
-  else if (!downloadStatus.empty() && downloadStatus != "synchronize_ok")
-  {
-    status = downloadStatus;
-  }
-  else if (lastDownload > 0)
-  {
-    time = lastDownload;
-    status = "synchronize_last_at";
-  }
-
-  JNIEnv* jniEnv = NULL;
-  int stat = globalJvm->GetEnv((void **)&jniEnv, JNI_VERSION_1_6);
-  if (stat == JNI_EDETACHED)
-  {
-    if (globalJvm->AttachCurrentThread(&jniEnv, NULL) != 0)
-      throw std::runtime_error("Failed to get JNI environment");
-  }
-
-  jstring jUrl = jniEnv->NewStringUTF(subscription->GetProperty("url")->AsString().c_str());
-  jstring jStatus = jniEnv->NewStringUTF(status.c_str());
-  jlong jTime = time * 1000;
-
-  static jclass cls = jniEnv->GetObjectClass(jniObject);
-  static jmethodID mid = jniEnv->GetMethodID(cls, "onFilterChanged", "(Ljava/lang/String;Ljava/lang/String;J)V");
-  if (mid)
-    jniEnv->CallVoidMethod(jniObject, mid, jUrl, jStatus, jTime);
-  jniEnv->DeleteLocalRef(jUrl);
-  jniEnv->DeleteLocalRef(jStatus);
-
-  if (stat == JNI_EDETACHED)
-    globalJvm->DetachCurrentThread();
-}
-
-void FilterChangedCallback(const std::string& action, const AdblockPlus::JsValuePtr item)
-{
-  D(D_WARN, "FilterChangedCallback()");
-
-  if (action == "subscription.lastDownload" || action == "subscription.downloadStatus")
-  {
-    AdblockPlus::SubscriptionPtr subscription = AdblockPlus::SubscriptionPtr(new AdblockPlus::Subscription(item));
-    UpdateSubscriptionStatus(subscription);
-  }
-}
-
-void UpdateAvailableCallback(AdblockPlus::JsValueList& params)
-{
-  D(D_WARN, "UpdateAvailableCallback()");
-  std::string updateUrl(params.size() >= 1 && !params[0]->IsNull() ? params[0]->AsString() : "");
-  if (updateUrl.empty())
-    return;
-
-  JNIEnv* jniEnv = NULL;
-  int stat = globalJvm->GetEnv((void **)&jniEnv, JNI_VERSION_1_6);
-  if (stat == JNI_EDETACHED)
-  {
-    if (globalJvm->AttachCurrentThread(&jniEnv, NULL) != 0)
-      throw std::runtime_error("Failed to get JNI environment");
-  }
-
-  jstring jUrl = jniEnv->NewStringUTF(updateUrl.c_str());
-
-  static jclass cls = jniEnv->GetObjectClass(jniObject);
-  static jmethodID mid = jniEnv->GetMethodID(cls, "onUpdateEvent", "(Ljava/lang/String;Ljava/lang/String;)V");
-  if (mid)
-    jniEnv->CallVoidMethod(jniObject, mid, jUrl, NULL);
-  jniEnv->DeleteLocalRef(jUrl);
-
-  if (stat == JNI_EDETACHED)
-    globalJvm->DetachCurrentThread();
-}
-
-void UpdaterCallback(const std::string& error)
-{
-  JNIEnv* jniEnv = NULL;
-  int stat = globalJvm->GetEnv((void **)&jniEnv, JNI_VERSION_1_6);
-  if (stat == JNI_EDETACHED)
-  {
-    if (globalJvm->AttachCurrentThread(&jniEnv, NULL) != 0)
-      throw std::runtime_error("Failed to get JNI environment");
-  }
-
-  static jclass cls = jniEnv->GetObjectClass(jniObject);
-  static jmethodID mid = jniEnv->GetMethodID(cls, "onUpdateEvent", "(Ljava/lang/String;Ljava/lang/String;)V");
-
-  if (!error.empty())
-  {
-    jstring jError = jniEnv->NewStringUTF(error.c_str());
-    if (mid)
-      jniEnv->CallVoidMethod(jniObject, mid, NULL, jError);
-    jniEnv->DeleteLocalRef(jError);
-  }
-  else if (manualUpdate)
-  {
-    if (mid)
-      jniEnv->CallVoidMethod(jniObject, mid, NULL, NULL);
-  }
-
-  if (stat == JNI_EDETACHED)
-    globalJvm->DetachCurrentThread();
-}
-
-void ThrowJavaException(JNIEnv* env, const std::string& message)
-{
-  jclass exceptionClass = env->FindClass("java/lang/Exception");
-  env->ThrowNew(exceptionClass, message.c_str());
-}
-
-void ThrowJavaException(JNIEnv* env, const std::exception& e)
-{
-  ThrowJavaException(env, std::string("Exception from libadblockplus: ") + e.what());
-}
-
-void ThrowJavaException(JNIEnv* env)
-{
-  ThrowJavaException(env, "Unknown exception from libadblockplus");
-}
-
-jint JNICALL JNI_OnLoad(JavaVM *vm, void *reserved)
-{
-  return JNI_VERSION_1_6;
-}
-
-void JNICALL JNI_OnUnload(JavaVM *vm, void *reserved)
-{
-}
-
-JNIEXPORT void JNICALL Java_org_adblockplus_android_ABPEngine_initialize(
-  JNIEnv *pEnv, jobject pObject, jstring basePath, jstring version,
-  jstring sdkVersion, jstring locale, jboolean developmentBuild)
-{
-  D(D_WARN, "nativeInitialize()");
-  try
-  {
-    int status = pEnv->GetJavaVM(&globalJvm);
-
-    jniObject = pEnv->NewGlobalRef(pObject);
-
-    AdblockPlus::AppInfo appInfo;
-    appInfo.name = "adblockplusandroid";
-    appInfo.version = GetString(pEnv, version);
-    appInfo.application = "android";
-    appInfo.applicationVersion = GetString(pEnv, sdkVersion);
-    appInfo.locale = GetString(pEnv, locale);
-    appInfo.developmentBuild = developmentBuild;
-
-    D(D_INFO, "AppInfo: name=%s, version=%s, application=%s, applicationVersion=%s , locale=%s, developmentBuild=%s",
-      appInfo.name.c_str(), appInfo.version.c_str(), appInfo.application.c_str(),
-      appInfo.applicationVersion.c_str(), appInfo.locale.c_str(),
-      appInfo.developmentBuild ? "true" : "false");
-
-    AdblockPlus::JsEnginePtr jsEngine(AdblockPlus::JsEngine::New(appInfo));
-
-    AdblockPlus::DefaultFileSystem* defaultFileSystem = new AdblockPlus::DefaultFileSystem();
-    AndroidLogSystem* androidLogSystem = new AndroidLogSystem();
-    AndroidWebRequest* androidWebRequest = new AndroidWebRequest(globalJvm);
-
-    defaultFileSystem->SetBasePath(GetString(pEnv, basePath));
-    jsEngine->SetLogSystem(AdblockPlus::LogSystemPtr(androidLogSystem));
-    jsEngine->SetFileSystem(AdblockPlus::FileSystemPtr(defaultFileSystem));
-    jsEngine->SetWebRequest(AdblockPlus::WebRequestPtr(androidWebRequest));
-    jsEngine->SetEventCallback("updateAvailable", std::tr1::bind(&UpdateAvailableCallback, std::tr1::placeholders::_1));
-
-    filterEngine = new AdblockPlus::FilterEngine(jsEngine);
-    filterEngine->SetFilterChangeCallback(&FilterChangedCallback);
-  }
-  catch (const std::exception& e)
-  {
-    ThrowJavaException(pEnv, e);
-  }
-  catch (...)
-  {
-    ThrowJavaException(pEnv);
-  }
-}
-
-JNIEXPORT void JNICALL Java_org_adblockplus_android_ABPEngine_release(JNIEnv *pEnv, jobject)
-{
-  D(D_WARN, "nativeRelease()");
-  try
-  {
-    AdblockPlus::JsEnginePtr jsEngine = filterEngine->GetJsEngine();
-    jsEngine->RemoveEventCallback("updateAvailable");
-    filterEngine->RemoveFilterChangeCallback();
-    delete filterEngine;
-    pEnv->DeleteGlobalRef(jniObject);
-    jniObject = NULL;
-    globalJvm = NULL;
-  }
-  catch (const std::exception& e)
-  {
-    ThrowJavaException(pEnv, e);
-  }
-  catch (...)
-  {
-    ThrowJavaException(pEnv);
-  }
-}
-
-JNIEXPORT jboolean JNICALL Java_org_adblockplus_android_ABPEngine_isFirstRun(JNIEnv *pEnv, jobject)
-{
-  try
-  {
-    return filterEngine->IsFirstRun() ? JNI_TRUE : JNI_FALSE;
-  }
-  catch (const std::exception& e)
-  {
-    ThrowJavaException(pEnv, e);
-  }
-  catch (...)
-  {
-    ThrowJavaException(pEnv);
-  }
-  return JNI_FALSE;
-}
-
-JNIEXPORT jobjectArray JNICALL Java_org_adblockplus_android_ABPEngine_getListedSubscriptions(JNIEnv *pEnv, jobject)
-{
-  D(D_WARN, "getListedSubscriptions()");
-  try
-  {
-    const std::vector<AdblockPlus::SubscriptionPtr> subscriptions = filterEngine->GetListedSubscriptions();
-    return subscriptionsAsJavaArray(pEnv, subscriptions);
-  }
-  catch (const std::exception& e)
-  {
-    ThrowJavaException(pEnv, e);
-  }
-  catch (...)
-  {
-    ThrowJavaException(pEnv);
-  }
-  return 0;
-}
-
-JNIEXPORT jobjectArray JNICALL Java_org_adblockplus_android_ABPEngine_getRecommendedSubscriptions(JNIEnv *pEnv, jobject)
-{
-  D(D_WARN, "getRecommendedSubscriptions()");
-  try
-  {
-    const std::vector<AdblockPlus::SubscriptionPtr> subscriptions = filterEngine->FetchAvailableSubscriptions();
-    return subscriptionsAsJavaArray(pEnv, subscriptions);
-  }
-  catch (const std::exception& e)
-  {
-    ThrowJavaException(pEnv, e);
-  }
-  catch (...)
-  {
-    ThrowJavaException(pEnv);
-  }
-  return 0;
-}
-
-JNIEXPORT void JNICALL Java_org_adblockplus_android_ABPEngine_addSubscription(JNIEnv *pEnv, jobject, jstring url)
-{
-  D(D_WARN, "addSubscription()");
-  try
-  {
-    const std::string surl = GetString(pEnv, url);
-    AdblockPlus::SubscriptionPtr subscription = filterEngine->GetSubscription(surl);
-    subscription->AddToList();
-  }
-  catch (const std::exception& e)
-  {
-    ThrowJavaException(pEnv, e);
-  }
-  catch (...)
-  {
-    ThrowJavaException(pEnv);
-  }
-}
-
-JNIEXPORT void JNICALL Java_org_adblockplus_android_ABPEngine_removeSubscription(JNIEnv *pEnv, jobject, jstring url)
-{
-  D(D_WARN, "removeSubscription()");
-  try
-  {
-    const std::string surl = GetString(pEnv, url);
-    AdblockPlus::SubscriptionPtr subscription = filterEngine->GetSubscription(surl);
-    if (subscription->IsListed())
-    {
-      subscription->RemoveFromList();
-    }
-  }
-  catch (const std::exception& e)
-  {
-    ThrowJavaException(pEnv, e);
-  }
-  catch (...)
-  {
-    ThrowJavaException(pEnv);
-  }
-}
-
-JNIEXPORT void JNICALL Java_org_adblockplus_android_ABPEngine_refreshSubscription(JNIEnv *pEnv, jobject, jstring url)
-{
-  D(D_WARN, "refreshSubscription()");
-  try
-  {
-    const std::string surl = GetString(pEnv, url);
-    AdblockPlus::SubscriptionPtr subscription = filterEngine->GetSubscription(surl);
-    subscription->UpdateFilters();
-  }
-  catch (const std::exception& e)
-  {
-    ThrowJavaException(pEnv, e);
-  }
-  catch (...)
-  {
-    ThrowJavaException(pEnv);
-  }
-}
-
-JNIEXPORT void JNICALL Java_org_adblockplus_android_ABPEngine_actualizeSubscriptionStatus(JNIEnv *pEnv, jobject, jstring url)
-{
-  D(D_WARN, "actualizeSubscriptionStatus()");
-  try
-  {
-    const std::string surl = GetString(pEnv, url);
-    AdblockPlus::SubscriptionPtr subscription = filterEngine->GetSubscription(surl);
-    UpdateSubscriptionStatus(subscription);
-  }
-  catch (const std::exception& e)
-  {
-    ThrowJavaException(pEnv, e);
-  }
-  catch (...)
-  {
-    ThrowJavaException(pEnv);
-  }
-}
-
-JNIEXPORT void JNICALL Java_org_adblockplus_android_ABPEngine_setAcceptableAdsEnabled(JNIEnv *pEnv, jobject, jboolean enabled)
-{
-  D(D_WARN, "setAcceptableAdsEnabled()");
-  try
-  {
-    const std::string surl = filterEngine->GetPref("subscriptions_exceptionsurl")->AsString();
-    AdblockPlus::SubscriptionPtr subscription = filterEngine->GetSubscription(surl);
-    if (enabled == JNI_TRUE)
-    {
-      subscription->AddToList();
-    }
-    else if (subscription->IsListed())
-    {
-      subscription->RemoveFromList();
-    }
-  }
-  catch (const std::exception& e)
-  {
-    ThrowJavaException(pEnv, e);
-  }
-  catch (...)
-  {
-    ThrowJavaException(pEnv);
-  }
-}
-
-JNIEXPORT jstring JNICALL Java_org_adblockplus_android_ABPEngine_getDocumentationLink(
-    JNIEnv *env, jobject object)
-{
-  const std::string documentationLink = filterEngine->GetPref("documentation_link")->AsString();
-  return env->NewStringUTF(documentationLink.c_str());
-}
-
-JNIEXPORT jboolean JNICALL Java_org_adblockplus_android_ABPEngine_matches(
-  JNIEnv *pEnv, jobject, jstring url, jstring contentType, jobjectArray documentUrls)
-{
-  try
-  {
-    const std::string surl = GetString(pEnv, url);
-    const std::string stype = GetString(pEnv, contentType);
-    const int documentUrlsLength = pEnv->GetArrayLength(documentUrls);
-    std::vector<std::string> sdocumentUrls;
-    for(int i = 0; i < documentUrlsLength; i++)
-    {
-       jstring documentUrl = static_cast<jstring>(pEnv->GetObjectArrayElement(documentUrls, i));
-       sdocumentUrls.push_back(GetString(pEnv, documentUrl));
-    }
-
-    AdblockPlus::FilterPtr filter = filterEngine->Matches(surl, stype, sdocumentUrls);
-
-    if (! filter)
-      return JNI_FALSE;
-
-    // hack: if there is no referrer, block only if filter is domain-specific
-    // (to re-enable in-app ads blocking, proposed on 12.11.2012 Monday meeting)
-    // (documentUrls contains the referrers on Android)
-    if (!sdocumentUrls.size() &&
-        (filter->GetProperty("text")->AsString()).find("||") != std::string::npos)
-      return JNI_FALSE;
-
-    return filter->GetType() == AdblockPlus::Filter::TYPE_EXCEPTION ? JNI_FALSE : JNI_TRUE;
-  }
-  catch (const std::exception& e)
-  {
-    ThrowJavaException(pEnv, e);
-  }
-  catch (...)
-  {
-    ThrowJavaException(pEnv);
-  }
-  return JNI_FALSE;
-}
-
-JNIEXPORT jobjectArray JNICALL Java_org_adblockplus_android_ABPEngine_getSelectorsForDomain(JNIEnv *pEnv, jobject, jstring domain)
-{
-  try
-  {
-    const std::string sdomain = GetString(pEnv, domain);
-    const std::vector<std::string> selectors = filterEngine->GetElementHidingSelectors(sdomain);
-
-    static jclass cls = reinterpret_cast<jclass>(pEnv->NewGlobalRef(pEnv->FindClass("java/lang/String")));
-
-    D(D_WARN, "Selectors: %d", selectors.size());
-    const jobjectArray ret = (jobjectArray) pEnv->NewObjectArray(selectors.size(), cls, NULL);
-
-    int i = 0;
-    for (std::vector<std::string>::const_iterator it = selectors.begin();
-         it != selectors.end(); it++)
-    {
-      jstring selector = pEnv->NewStringUTF((*it).c_str());
-      pEnv->SetObjectArrayElement(ret, i, selector);
-      pEnv->DeleteLocalRef(selector);
-      i++;
-    }
-
-    return ret;
-  }
-  catch (const std::exception& e)
-  {
-    ThrowJavaException(pEnv, e);
-  }
-  catch (...)
-  {
-    ThrowJavaException(pEnv);
-  }
-  return 0;
-}
-
-JNIEXPORT void JNICALL Java_org_adblockplus_android_ABPEngine_checkUpdates(JNIEnv *pEnv, jobject)
-{
-  try
-  {
-    manualUpdate = true;
-    filterEngine->ForceUpdateCheck(UpdaterCallback);
-  }
-  catch (const std::exception& e)
-  {
-    ThrowJavaException(pEnv, e);
-  }
-  catch (...)
-  {
-    ThrowJavaException(pEnv);
-  }
-}