New JNI bindings

jni/JniWebRequest.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 "JniCallbacks.h"
+
+static jlong JNICALL JniCtor(JNIEnv* env, jclass clazz, jobject callbackObject)
+{
+  try
+  {
+    return JniPtrToLong(new AdblockPlus::WebRequestPtr(new JniWebRequest(env, callbackObject)));
+  }
+  CATCH_THROW_AND_RETURN(env, 0)
+}
+
+static void JNICALL JniDtor(JNIEnv* env, jclass clazz, jlong ptr)
+{
+  delete JniLongToTypePtr<AdblockPlus::WebRequestPtr>(ptr);
+}
+
+JniWebRequest::JniWebRequest(JNIEnv* env, jobject callbackObject)
+  : JniCallbackBase(env, callbackObject), AdblockPlus::WebRequest()
+{
+  tupleClass.reset(new JniGlobalReference<jclass>(env, env->FindClass("com/github/rjeschke/neetutils/collections/Tuple")));
+  serverResponseClass.reset(new JniGlobalReference<jclass>(env, env->FindClass(PKG("ServerResponse"))));
+}
+
+AdblockPlus::ServerResponse JniWebRequest::GET(const std::string& url, const AdblockPlus::HeaderList& requestHeaders) const
+{
+  JNIEnvAcquire env(GetJavaVM());
+
+  jclass clazz = env->GetObjectClass(GetCallbackObject());
+  jmethodID method = env->GetMethodID(clazz, "httpGET", "(Ljava/lang/String;Ljava/util/List;)" TYP("ServerResponse"));
+
+  AdblockPlus::ServerResponse sResponse;
+  sResponse.status = AdblockPlus::WebRequest::NS_ERROR_FAILURE;
+
+  if (method)
+  {
+    jobject arrayList = NewJniArrayList(*env);
+
+    for (AdblockPlus::HeaderList::const_iterator it = requestHeaders.begin(), end = requestHeaders.end(); it != end; it++)
+    {
+      JniAddObjectToList(*env, arrayList, NewTuple(*env, it->first, it->second));
+    }
+
+    jobject response = env->CallObjectMethod(GetCallbackObject(), method, env->NewStringUTF(url.c_str()), arrayList);
+
+    if (!env->ExceptionCheck())
+    {
+      sResponse.status = JniGetLongField(*env, serverResponseClass->Get(), response, "status");
+      sResponse.responseStatus = JniGetIntField(*env, serverResponseClass->Get(), response, "responseStatus");
+      sResponse.responseText = JniGetStringField(*env, serverResponseClass->Get(), response, "response");
+      // TODO: transform Headers
+    }
+  }
+
+  CheckAndLogJavaException(*env);
+
+  return sResponse;
+}
+
+jobject JniWebRequest::NewTuple(JNIEnv* env, const std::string& a, const std::string& b) const
+{
+  jmethodID factory = env->GetMethodID(tupleClass->Get(), "<init>", "(Ljava/lang/Object;Ljava/lang/Object;)V");
+  return env->NewObject(tupleClass->Get(), factory, env->NewStringUTF(a.c_str()), env->NewStringUTF(b.c_str()));
+}
+
+static JNINativeMethod methods[] =
+{
+  { (char*)"ctor", (char*)"(Ljava/lang/Object;)J", (void*)JniCtor },
+  { (char*)"dtor", (char*)"(J)V", (void*)JniDtor }
+};
+
+extern "C" JNIEXPORT void JNICALL Java_org_adblockplus_libadblockplus_WebRequest_registerNatives(JNIEnv *env, jclass clazz)
+{
+  env->RegisterNatives(clazz, methods, sizeof(methods) / sizeof(methods[0]));
+}