Change PacProcessor to Android Service

This switches the PacProcessor over to an Android Service.  The service
is bound and unbound by the PacManager, which also adds it to the
ServiceManager, allowing for Context-Free access by the PacProxySelector
in all DVMs.

bug:10182711
Change-Id: Id1ff7660be56e8976cdcccd76e041feb47a17a61

3 files changed, 227 insertions, 0 deletions

diff --git a/packages/services/PacProcessor/jni/Android.mk b/packages/services/PacProcessor/jni/Android.mk
new file mode 100644
index 0000000..f16c90b
--- /dev/null
+++ b/packages/services/PacProcessor/jni/Android.mk
@@ -0,0 +1,41 @@
+#
+# Copyright (C) 2013 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+    jni_init.cpp \
+    com_android_pacprocessor_PacNative.cpp
+
+LOCAL_C_INCLUDES += \
+    external/chromium-libpac/src
+
+LOCAL_SHARED_LIBRARIES := \
+    libandroidfw \
+    libandroid_runtime \
+    liblog \
+    libutils \
+    libnativehelper \
+    libpac
+
+LOCAL_MODULE := libjni_pacprocessor
+LOCAL_MODULE_TAGS := optional
+
+include external/stlport/libstlport.mk
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/packages/services/PacProcessor/jni/com_android_pacprocessor_PacNative.cpp b/packages/services/PacProcessor/jni/com_android_pacprocessor_PacNative.cpp
new file mode 100644
index 0000000..c5aa13b
--- /dev/null
+++ b/packages/services/PacProcessor/jni/com_android_pacprocessor_PacNative.cpp
@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "PacProcessor"
+
+#include <utils/Log.h>
+#include <utils/Mutex.h>
+#include "android_runtime/AndroidRuntime.h"
+
+#include "jni.h"
+#include "JNIHelp.h"
+
+#include "proxy_resolver_v8.h"
+
+namespace android {
+
+class ProxyErrorLogger : public net::ProxyErrorListener {
+public:
+    ~ProxyErrorLogger() {
+
+    }
+    void AlertMessage(String16 message) {
+        String8 str(message);
+        ALOGD("Alert: %s", str.string());
+    }
+    void ErrorMessage(String16 message) {
+        String8 str(message);
+        ALOGE("Error: %s", str.string());
+    }
+};
+
+net::ProxyResolverV8* proxyResolver = NULL;
+ProxyErrorLogger* logger = NULL;
+bool pacSet = false;
+
+String16 jstringToString16(JNIEnv* env, jstring jstr) {
+    const jchar* str = env->GetStringCritical(jstr, 0);
+    String16 str16(str, env->GetStringLength(jstr));
+    env->ReleaseStringCritical(jstr, str);
+    return str16;
+}
+
+jstring string16ToJstring(JNIEnv* env, String16 string) {
+    const char16_t* str = string.string();
+    size_t len = string.size();
+
+    return env->NewString(str, len);
+}
+
+static jboolean com_android_pacprocessor_PacNative_createV8ParserNativeLocked(JNIEnv* env, 
+        jobject) {
+    if (proxyResolver == NULL) {
+        logger = new ProxyErrorLogger();
+        proxyResolver = new net::ProxyResolverV8(net::ProxyResolverJSBindings::CreateDefault(),
+                logger);
+        pacSet = false;
+        return JNI_FALSE;
+    }
+    return JNI_TRUE;
+}
+
+static jboolean com_android_pacprocessor_PacNative_destroyV8ParserNativeLocked(JNIEnv* env, 
+        jobject) {
+    if (proxyResolver != NULL) {
+        delete logger;
+        delete proxyResolver;
+        logger = NULL;
+        proxyResolver = NULL;
+        return JNI_FALSE;
+    }
+    return JNI_TRUE;
+}
+
+static jboolean com_android_pacprocessor_PacNative_setProxyScriptNativeLocked(JNIEnv* env, jobject,
+        jstring script) {
+    String16 script16 = jstringToString16(env, script);
+
+    if (proxyResolver == NULL) {
+        ALOGE("V8 Parser not started when setting PAC script");
+        return JNI_TRUE;
+    }
+
+    if (proxyResolver->SetPacScript(script16) != OK) {
+        ALOGE("Unable to set PAC script");
+        return JNI_TRUE;
+    }
+    pacSet = true;
+
+    return JNI_FALSE;
+}
+
+static jstring com_android_pacprocessor_PacNative_makeProxyRequestNativeLocked(JNIEnv* env, jobject,
+        jstring url, jstring host) {
+    String16 url16 = jstringToString16(env, url);
+    String16 host16 = jstringToString16(env, host);
+    String16 ret;
+
+    if (proxyResolver == NULL) {
+        ALOGE("V8 Parser not initialized when running PAC script");
+        return NULL;
+    }
+
+    if (!pacSet) {
+        ALOGW("Attempting to run PAC with no script set");
+        return NULL;
+    }
+
+    if (proxyResolver->GetProxyForURL(url16, host16, &ret) != OK) {
+        String8 ret8(ret);
+        ALOGE("Error Running PAC: %s", ret8.string());
+        return NULL;
+    }
+
+    jstring jret = string16ToJstring(env, ret);
+
+    return jret;
+}
+
+static JNINativeMethod gMethods[] = {
+    { "createV8ParserNativeLocked", "()Z",
+        (void*)com_android_pacprocessor_PacNative_createV8ParserNativeLocked},
+    { "destroyV8ParserNativeLocked", "()Z",
+        (void*)com_android_pacprocessor_PacNative_destroyV8ParserNativeLocked},
+    { "setProxyScriptNativeLocked", "(Ljava/lang/String;)Z",
+        (void*)com_android_pacprocessor_PacNative_setProxyScriptNativeLocked},
+    { "makeProxyRequestNativeLocked", "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;",
+        (void*)com_android_pacprocessor_PacNative_makeProxyRequestNativeLocked},
+};
+
+int register_com_android_pacprocessor_PacNative(JNIEnv* env) {
+    return jniRegisterNativeMethods(env, "com/android/pacprocessor/PacNative",
+            gMethods, NELEM(gMethods));
+}
+
+} /* namespace android */
diff --git a/packages/services/PacProcessor/jni/jni_init.cpp b/packages/services/PacProcessor/jni/jni_init.cpp
new file mode 100644
index 0000000..bda33fb
--- /dev/null
+++ b/packages/services/PacProcessor/jni/jni_init.cpp
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "PacProcessor"
+
+#include <utils/Log.h>
+#include "jni.h"
+
+namespace android {
+    extern int register_com_android_pacprocessor_PacNative(JNIEnv *env);
+}
+
+using namespace android;
+
+extern "C" jint JNI_OnLoad(JavaVM* vm, void* reserved) {
+    JNIEnv *env;
+    if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
+        ALOGE("ERROR: GetEnv failed");
+        return -1;
+    }
+
+    register_com_android_pacprocessor_PacNative(env);
+
+    return JNI_VERSION_1_6;
+}