Kenny Root | 02c8730 | 2010-07-01 08:10:18 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2010, The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #define LOG_TAG "ObbScanner" |
| 18 | |
| 19 | #include <utils/Log.h> |
| 20 | #include <utils/String8.h> |
Mathias Agopian | b13b9bd | 2012-02-17 18:27:36 -0800 | [diff] [blame] | 21 | #include <androidfw/ObbFile.h> |
Kenny Root | 02c8730 | 2010-07-01 08:10:18 -0700 | [diff] [blame] | 22 | |
| 23 | #include "jni.h" |
Elliott Hughes | 8451b25 | 2011-04-07 19:17:57 -0700 | [diff] [blame] | 24 | #include "JNIHelp.h" |
Kenny Root | 02c8730 | 2010-07-01 08:10:18 -0700 | [diff] [blame] | 25 | #include "utils/misc.h" |
| 26 | #include "android_runtime/AndroidRuntime.h" |
| 27 | |
Andreas Gampe | 987f79f | 2014-11-18 17:29:46 -0800 | [diff] [blame] | 28 | #include "core_jni_helpers.h" |
| 29 | |
Kenny Root | 02c8730 | 2010-07-01 08:10:18 -0700 | [diff] [blame] | 30 | namespace android { |
| 31 | |
| 32 | static struct { |
| 33 | jclass clazz; |
| 34 | |
| 35 | jfieldID packageName; |
| 36 | jfieldID version; |
Kenny Root | 02ca31f | 2010-08-12 07:36:02 -0700 | [diff] [blame] | 37 | jfieldID flags; |
Kenny Root | 3b1abba | 2010-10-13 15:00:07 -0700 | [diff] [blame] | 38 | jfieldID salt; |
Kenny Root | 02c8730 | 2010-07-01 08:10:18 -0700 | [diff] [blame] | 39 | } gObbInfoClassInfo; |
| 40 | |
Kenny Root | 05105f7 | 2010-09-22 17:29:43 -0700 | [diff] [blame] | 41 | static void android_content_res_ObbScanner_getObbInfo(JNIEnv* env, jobject clazz, jstring file, |
Kenny Root | 02c8730 | 2010-07-01 08:10:18 -0700 | [diff] [blame] | 42 | jobject obbInfo) |
| 43 | { |
Elliott Hughes | dd66bcb | 2011-04-12 11:28:59 -0700 | [diff] [blame] | 44 | const char* filePath = env->GetStringUTFChars(file, NULL); |
Kenny Root | 02c8730 | 2010-07-01 08:10:18 -0700 | [diff] [blame] | 45 | |
| 46 | sp<ObbFile> obb = new ObbFile(); |
| 47 | if (!obb->readFrom(filePath)) { |
| 48 | env->ReleaseStringUTFChars(file, filePath); |
Elliott Hughes | 8451b25 | 2011-04-07 19:17:57 -0700 | [diff] [blame] | 49 | jniThrowException(env, "java/io/IOException", "Could not read OBB file"); |
Kenny Root | 05105f7 | 2010-09-22 17:29:43 -0700 | [diff] [blame] | 50 | return; |
Kenny Root | 02c8730 | 2010-07-01 08:10:18 -0700 | [diff] [blame] | 51 | } |
| 52 | |
| 53 | env->ReleaseStringUTFChars(file, filePath); |
| 54 | |
| 55 | const char* packageNameStr = obb->getPackageName().string(); |
| 56 | |
| 57 | jstring packageName = env->NewStringUTF(packageNameStr); |
| 58 | if (packageName == NULL) { |
Elliott Hughes | 8451b25 | 2011-04-07 19:17:57 -0700 | [diff] [blame] | 59 | jniThrowException(env, "java/io/IOException", "Could not read OBB file"); |
Kenny Root | 05105f7 | 2010-09-22 17:29:43 -0700 | [diff] [blame] | 60 | return; |
Kenny Root | 02c8730 | 2010-07-01 08:10:18 -0700 | [diff] [blame] | 61 | } |
| 62 | |
| 63 | env->SetObjectField(obbInfo, gObbInfoClassInfo.packageName, packageName); |
| 64 | env->SetIntField(obbInfo, gObbInfoClassInfo.version, obb->getVersion()); |
Kenny Root | 05105f7 | 2010-09-22 17:29:43 -0700 | [diff] [blame] | 65 | env->SetIntField(obbInfo, gObbInfoClassInfo.flags, obb->getFlags()); |
Kenny Root | 3b1abba | 2010-10-13 15:00:07 -0700 | [diff] [blame] | 66 | |
| 67 | size_t saltLen; |
| 68 | const unsigned char* salt = obb->getSalt(&saltLen); |
| 69 | if (saltLen > 0) { |
| 70 | jbyteArray saltArray = env->NewByteArray(saltLen); |
| 71 | env->SetByteArrayRegion(saltArray, 0, saltLen, (jbyte*)salt); |
| 72 | env->SetObjectField(obbInfo, gObbInfoClassInfo.salt, saltArray); |
| 73 | } |
Kenny Root | 02c8730 | 2010-07-01 08:10:18 -0700 | [diff] [blame] | 74 | } |
| 75 | |
| 76 | /* |
| 77 | * JNI registration. |
| 78 | */ |
Daniel Micay | 76f6a86 | 2015-09-19 17:31:01 -0400 | [diff] [blame] | 79 | static const JNINativeMethod gMethods[] = { |
Kenny Root | 02c8730 | 2010-07-01 08:10:18 -0700 | [diff] [blame] | 80 | /* name, signature, funcPtr */ |
Kenny Root | 05105f7 | 2010-09-22 17:29:43 -0700 | [diff] [blame] | 81 | { "getObbInfo_native", "(Ljava/lang/String;Landroid/content/res/ObbInfo;)V", |
Kenny Root | 02c8730 | 2010-07-01 08:10:18 -0700 | [diff] [blame] | 82 | (void*) android_content_res_ObbScanner_getObbInfo }, |
| 83 | }; |
| 84 | |
Kenny Root | 02c8730 | 2010-07-01 08:10:18 -0700 | [diff] [blame] | 85 | int register_android_content_res_ObbScanner(JNIEnv* env) |
| 86 | { |
Andreas Gampe | 987f79f | 2014-11-18 17:29:46 -0800 | [diff] [blame] | 87 | jclass clazz = FindClassOrDie(env, "android/content/res/ObbInfo"); |
Kenny Root | 02c8730 | 2010-07-01 08:10:18 -0700 | [diff] [blame] | 88 | |
Andreas Gampe | 987f79f | 2014-11-18 17:29:46 -0800 | [diff] [blame] | 89 | gObbInfoClassInfo.packageName = GetFieldIDOrDie(env, clazz, "packageName", |
| 90 | "Ljava/lang/String;"); |
| 91 | gObbInfoClassInfo.version = GetFieldIDOrDie(env, clazz, "version", "I"); |
| 92 | gObbInfoClassInfo.flags = GetFieldIDOrDie(env, clazz, "flags", "I"); |
| 93 | gObbInfoClassInfo.salt = GetFieldIDOrDie(env, clazz, "salt", "[B"); |
Kenny Root | 02c8730 | 2010-07-01 08:10:18 -0700 | [diff] [blame] | 94 | |
Andreas Gampe | 987f79f | 2014-11-18 17:29:46 -0800 | [diff] [blame] | 95 | return RegisterMethodsOrDie(env, "android/content/res/ObbScanner", gMethods, NELEM(gMethods)); |
Kenny Root | 02c8730 | 2010-07-01 08:10:18 -0700 | [diff] [blame] | 96 | } |
| 97 | |
| 98 | }; // namespace android |