зеркало из https://github.com/mozilla/gecko-dev.git
127 строки
3.9 KiB
C++
127 строки
3.9 KiB
C++
/* -*- Mode: c++; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <jni.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include "APKOpen.h"
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#include "Zip.h"
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#include "mozilla/RefPtr.h"
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extern "C"
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__attribute__ ((visibility("default")))
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void JNICALL
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Java_org_mozilla_gecko_mozglue_GeckoLoader_putenv(JNIEnv *jenv, jclass, jstring map)
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{
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const char* str;
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// XXX: java doesn't give us true UTF8, we should figure out something
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// better to do here
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str = jenv->GetStringUTFChars(map, nullptr);
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if (str == nullptr)
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return;
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putenv(strdup(str));
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jenv->ReleaseStringUTFChars(map, str);
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}
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extern "C"
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__attribute__ ((visibility("default")))
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jobject JNICALL
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Java_org_mozilla_gecko_mozglue_DirectBufferAllocator_nativeAllocateDirectBuffer(JNIEnv *jenv, jclass, jlong size)
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{
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jobject buffer = nullptr;
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void* mem = malloc(size);
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if (mem) {
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buffer = jenv->NewDirectByteBuffer(mem, size);
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if (!buffer)
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free(mem);
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}
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return buffer;
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}
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extern "C"
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__attribute__ ((visibility("default")))
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void JNICALL
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Java_org_mozilla_gecko_mozglue_DirectBufferAllocator_nativeFreeDirectBuffer(JNIEnv *jenv, jclass, jobject buf)
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{
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free(jenv->GetDirectBufferAddress(buf));
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}
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extern "C"
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__attribute__ ((visibility("default")))
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jlong JNICALL
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Java_org_mozilla_gecko_mozglue_NativeZip_getZip(JNIEnv *jenv, jclass, jstring path)
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{
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const char* str;
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str = jenv->GetStringUTFChars(path, nullptr);
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if (!str || !*str) {
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if (str)
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jenv->ReleaseStringUTFChars(path, str);
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JNI_Throw(jenv, "java/lang/IllegalArgumentException", "Invalid path");
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return 0;
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}
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mozilla::RefPtr<Zip> zip = ZipCollection::GetZip(str);
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jenv->ReleaseStringUTFChars(path, str);
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if (!zip) {
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JNI_Throw(jenv, "java/lang/IllegalArgumentException", "Invalid path or invalid zip");
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return 0;
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}
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zip->AddRef();
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return (jlong) zip.get();
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}
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extern "C"
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__attribute__ ((visibility("default")))
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jlong JNICALL
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Java_org_mozilla_gecko_mozglue_NativeZip_getZipFromByteBuffer(JNIEnv *jenv, jclass, jobject buffer)
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{
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void *buf = jenv->GetDirectBufferAddress(buffer);
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size_t size = jenv->GetDirectBufferCapacity(buffer);
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mozilla::RefPtr<Zip> zip = Zip::Create(buf, size);
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if (!zip) {
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JNI_Throw(jenv, "java/lang/IllegalArgumentException", "Invalid zip");
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return 0;
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}
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zip->AddRef();
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return (jlong) zip.get();
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}
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extern "C"
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__attribute__ ((visibility("default")))
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void JNICALL
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Java_org_mozilla_gecko_mozglue_NativeZip__1release(JNIEnv *jenv, jclass, jlong obj)
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{
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Zip *zip = (Zip *)obj;
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zip->Release();
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}
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extern "C"
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__attribute__ ((visibility("default")))
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jobject JNICALL
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Java_org_mozilla_gecko_mozglue_NativeZip__1getInputStream(JNIEnv *jenv, jobject jzip, jlong obj, jstring path)
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{
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Zip *zip = (Zip *)obj;
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const char* str;
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str = jenv->GetStringUTFChars(path, nullptr);
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Zip::Stream stream;
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bool res = zip->GetStream(str, &stream);
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jenv->ReleaseStringUTFChars(path, str);
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if (!res) {
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return nullptr;
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}
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jobject buf = jenv->NewDirectByteBuffer(const_cast<void *>(stream.GetBuffer()), stream.GetSize());
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if (!buf) {
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JNI_Throw(jenv, "java/lang/RuntimeException", "Failed to create ByteBuffer");
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return nullptr;
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}
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jclass nativeZip = jenv->GetObjectClass(jzip);
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jmethodID method = jenv->GetMethodID(nativeZip, "createInputStream", "(Ljava/nio/ByteBuffer;I)Ljava/io/InputStream;");
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// Since this function is only expected to be called from Java, it is safe
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// to skip exception checking for the method call below, as long as no
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// other Native -> Java call doesn't happen before returning to Java.
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return jenv->CallObjectMethod(jzip, method, buf, (jint) stream.GetType());
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}
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