// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "net/android/network_library.h"

#include "base/android/jni_android.h"
#include "base/android/jni_array.h"
#include "base/android/jni_string.h"
#include "base/android/scoped_java_ref.h"
#include "base/logging.h"
#include "jni/AndroidNetworkLibrary_jni.h"
#include "net/dns/dns_protocol.h"

using base::android::AttachCurrentThread;
using base::android::ConvertJavaStringToUTF8;
using base::android::ConvertUTF8ToJavaString;
using base::android::ScopedJavaLocalRef;
using base::android::ToJavaArrayOfByteArray;
using base::android::ToJavaByteArray;

namespace net {
namespace android {

void VerifyX509CertChain(const std::vector<std::string>& cert_chain,
                         const std::string& auth_type,
                         const std::string& host,
                         CertVerifyStatusAndroid* status,
                         bool* is_issued_by_known_root,
                         std::vector<std::string>* verified_chain) {
  JNIEnv* env = AttachCurrentThread();

  ScopedJavaLocalRef<jobjectArray> chain_byte_array =
      ToJavaArrayOfByteArray(env, cert_chain);
  DCHECK(!chain_byte_array.is_null());

  ScopedJavaLocalRef<jstring> auth_string =
      ConvertUTF8ToJavaString(env, auth_type);
  DCHECK(!auth_string.is_null());

  ScopedJavaLocalRef<jstring> host_string =
      ConvertUTF8ToJavaString(env, host);
  DCHECK(!host_string.is_null());

  ScopedJavaLocalRef<jobject> result =
      Java_AndroidNetworkLibrary_verifyServerCertificates(
          env, chain_byte_array, auth_string, host_string);

  ExtractCertVerifyResult(result, status, is_issued_by_known_root,
                          verified_chain);
}

void AddTestRootCertificate(const uint8_t* cert, size_t len) {
  JNIEnv* env = AttachCurrentThread();
  ScopedJavaLocalRef<jbyteArray> cert_array = ToJavaByteArray(env, cert, len);
  DCHECK(!cert_array.is_null());
  Java_AndroidNetworkLibrary_addTestRootCertificate(env, cert_array);
}

void ClearTestRootCertificates() {
  JNIEnv* env = AttachCurrentThread();
  Java_AndroidNetworkLibrary_clearTestRootCertificates(env);
}

bool IsCleartextPermitted(const std::string& host) {
  JNIEnv* env = AttachCurrentThread();
  ScopedJavaLocalRef<jstring> host_string = ConvertUTF8ToJavaString(env, host);
  return Java_AndroidNetworkLibrary_isCleartextPermitted(env, host_string);
}

bool HaveOnlyLoopbackAddresses() {
  JNIEnv* env = AttachCurrentThread();
  return Java_AndroidNetworkLibrary_haveOnlyLoopbackAddresses(env);
}

bool GetMimeTypeFromExtension(const std::string& extension,
                              std::string* result) {
  JNIEnv* env = AttachCurrentThread();

  ScopedJavaLocalRef<jstring> extension_string =
      ConvertUTF8ToJavaString(env, extension);
  ScopedJavaLocalRef<jstring> ret =
      Java_AndroidNetworkLibrary_getMimeTypeFromExtension(env,
                                                          extension_string);

  if (!ret.obj())
    return false;
  *result = ConvertJavaStringToUTF8(ret);
  return true;
}

std::string GetTelephonyNetworkCountryIso() {
  return base::android::ConvertJavaStringToUTF8(
      Java_AndroidNetworkLibrary_getNetworkCountryIso(
          base::android::AttachCurrentThread()));
}

std::string GetTelephonyNetworkOperator() {
  return base::android::ConvertJavaStringToUTF8(
      Java_AndroidNetworkLibrary_getNetworkOperator(
          base::android::AttachCurrentThread()));
}

std::string GetTelephonySimOperator() {
  return base::android::ConvertJavaStringToUTF8(
      Java_AndroidNetworkLibrary_getSimOperator(
          base::android::AttachCurrentThread()));
}

bool GetIsRoaming() {
  return Java_AndroidNetworkLibrary_getIsRoaming(
      base::android::AttachCurrentThread());
}

bool GetIsCaptivePortal() {
  return Java_AndroidNetworkLibrary_getIsCaptivePortal(
      base::android::AttachCurrentThread());
}

std::string GetWifiSSID() {
  return base::android::ConvertJavaStringToUTF8(
      Java_AndroidNetworkLibrary_getWifiSSID(
          base::android::AttachCurrentThread()));
}

internal::ConfigParsePosixResult GetDnsServers(
    std::vector<IPEndPoint>* dns_servers) {
  JNIEnv* env = AttachCurrentThread();
  std::vector<std::string> dns_servers_strings;
  base::android::JavaArrayOfByteArrayToStringVector(
      env, Java_AndroidNetworkLibrary_getDnsServers(env).obj(),
      &dns_servers_strings);
  if (dns_servers_strings.size() == 0)
    return internal::CONFIG_PARSE_POSIX_NO_NAMESERVERS;
  if (dns_servers_strings.size() == 1 && dns_servers_strings[0].size() == 1)
    return internal::CONFIG_PARSE_POSIX_PRIVATE_DNS_ACTIVE;
  for (const std::string& dns_address_string : dns_servers_strings) {
    IPAddress dns_address(
        reinterpret_cast<const uint8_t*>(dns_address_string.c_str()),
        dns_address_string.size());
    IPEndPoint dns_server(dns_address, dns_protocol::kDefaultPort);
    dns_servers->push_back(dns_server);
  }
  return internal::CONFIG_PARSE_POSIX_OK;
}

void TagSocket(SocketDescriptor socket, uid_t uid, int32_t tag) {
  Java_AndroidNetworkLibrary_tagSocket(AttachCurrentThread(), socket, uid, tag);
}

}  // namespace android
}  // namespace net