From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 mozglue/android/nsGeckoUtils.cpp | 124 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 mozglue/android/nsGeckoUtils.cpp

(limited to 'mozglue/android/nsGeckoUtils.cpp')

diff --git a/mozglue/android/nsGeckoUtils.cpp b/mozglue/android/nsGeckoUtils.cpp
new file mode 100644
index 000000000..22818a746
--- /dev/null
+++ b/mozglue/android/nsGeckoUtils.cpp
@@ -0,0 +1,124 @@
+/* -*- Mode: c++; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <jni.h>
+
+#include <stdlib.h>
+#include <fcntl.h>
+#include "APKOpen.h"
+#include "Zip.h"
+#include "mozilla/RefPtr.h"
+
+extern "C"
+__attribute__ ((visibility("default")))
+void MOZ_JNICALL
+Java_org_mozilla_gecko_mozglue_GeckoLoader_putenv(JNIEnv *jenv, jclass, jstring map)
+{
+    const char* str;
+    // XXX: java doesn't give us true UTF8, we should figure out something
+    // better to do here
+    str = jenv->GetStringUTFChars(map, nullptr);
+    if (str == nullptr)
+        return;
+    putenv(strdup(str));
+    jenv->ReleaseStringUTFChars(map, str);
+}
+
+extern "C"
+__attribute__ ((visibility("default")))
+jobject MOZ_JNICALL
+Java_org_mozilla_gecko_mozglue_DirectBufferAllocator_nativeAllocateDirectBuffer(JNIEnv *jenv, jclass, jlong size)
+{
+    jobject buffer = nullptr;
+    void* mem = malloc(size);
+    if (mem) {
+        buffer = jenv->NewDirectByteBuffer(mem, size);
+        if (!buffer)
+            free(mem);
+    }
+    return buffer;
+}
+
+extern "C"
+__attribute__ ((visibility("default")))
+void MOZ_JNICALL
+Java_org_mozilla_gecko_mozglue_DirectBufferAllocator_nativeFreeDirectBuffer(JNIEnv *jenv, jclass, jobject buf)
+{
+    free(jenv->GetDirectBufferAddress(buf));
+}
+
+extern "C"
+__attribute__ ((visibility("default")))
+jlong MOZ_JNICALL
+Java_org_mozilla_gecko_mozglue_NativeZip_getZip(JNIEnv *jenv, jclass, jstring path)
+{
+    const char* str;
+    str = jenv->GetStringUTFChars(path, nullptr);
+    if (!str || !*str) {
+        if (str)
+            jenv->ReleaseStringUTFChars(path, str);
+        JNI_Throw(jenv, "java/lang/IllegalArgumentException", "Invalid path");
+        return 0;
+    }
+    RefPtr<Zip> zip = ZipCollection::GetZip(str);
+    jenv->ReleaseStringUTFChars(path, str);
+    if (!zip) {
+        JNI_Throw(jenv, "java/lang/IllegalArgumentException", "Invalid path or invalid zip");
+        return 0;
+    }
+    return reinterpret_cast<jlong>(zip.forget().take());
+}
+
+extern "C"
+__attribute__ ((visibility("default")))
+jlong MOZ_JNICALL
+Java_org_mozilla_gecko_mozglue_NativeZip_getZipFromByteBuffer(JNIEnv *jenv, jclass, jobject buffer)
+{
+    void *buf = jenv->GetDirectBufferAddress(buffer);
+    size_t size = jenv->GetDirectBufferCapacity(buffer);
+    RefPtr<Zip> zip = Zip::Create(buf, size);
+    if (!zip) {
+        JNI_Throw(jenv, "java/lang/IllegalArgumentException", "Invalid zip");
+        return 0;
+    }
+    return reinterpret_cast<jlong>(zip.forget().take());
+}
+
+ extern "C"
+__attribute__ ((visibility("default")))
+void MOZ_JNICALL
+Java_org_mozilla_gecko_mozglue_NativeZip__1release(JNIEnv *jenv, jclass, jlong obj)
+{
+    Zip *zip = (Zip *)obj;
+    zip->Release();
+}
+
+extern "C"
+__attribute__ ((visibility("default")))
+jobject MOZ_JNICALL
+Java_org_mozilla_gecko_mozglue_NativeZip__1getInputStream(JNIEnv *jenv, jobject jzip, jlong obj, jstring path)
+{
+    Zip *zip = (Zip *)obj;
+    const char* str;
+    str = jenv->GetStringUTFChars(path, nullptr);
+
+    Zip::Stream stream;
+    bool res = zip->GetStream(str, &stream);
+    jenv->ReleaseStringUTFChars(path, str);
+    if (!res) {
+        return nullptr;
+    }
+    jobject buf = jenv->NewDirectByteBuffer(const_cast<void *>(stream.GetBuffer()), stream.GetSize());
+    if (!buf) {
+        JNI_Throw(jenv, "java/lang/RuntimeException", "Failed to create ByteBuffer");
+        return nullptr;
+    }
+    jclass nativeZip = jenv->GetObjectClass(jzip);
+    jmethodID method = jenv->GetMethodID(nativeZip, "createInputStream", "(Ljava/nio/ByteBuffer;I)Ljava/io/InputStream;");
+    // Since this function is only expected to be called from Java, it is safe
+    // to skip exception checking for the method call below, as long as no
+    // other Native -> Java call doesn't happen before returning to Java.
+    return jenv->CallObjectMethod(jzip, method, buf, (jint) stream.GetType());
+}
-- 
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