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libbluray/src/libbluray/bdj/bdj.c

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/*
* This file is part of libbluray
* Copyright (C) 2010 William Hahne
* Copyright (C) 2012-2019 Petri Hintukainen <phintuka@users.sourceforge.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.s
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include "bdj.h"
#include "native/register_native.h"
#include "file/file.h"
#include "file/dirs.h"
#include "file/dl.h"
#include "util/strutl.h"
#include "util/macro.h"
#include "util/logging.h"
#include <jni.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef __APPLE__
#include <sys/types.h>
#include <sys/wait.h>
#include <limits.h>
#include <unistd.h>
#endif
#ifdef _WIN32
#include <windows.h>
#include <winreg.h>
#endif
#ifdef HAVE_BDJ_J2ME
#define BDJ_JARFILE "libbluray-j2me-" VERSION ".jar"
#else
#define BDJ_JARFILE "libbluray-j2se-" VERSION ".jar"
#endif
struct bdjava_s {
#if defined(__APPLE__) && !defined(HAVE_BDJ_J2ME)
void *h_libjli;
#endif
void *h_libjvm;
JavaVM *jvm;
};
typedef jint (JNICALL * fptr_JNI_CreateJavaVM) (JavaVM **pvm, void **penv,void *args);
typedef jint (JNICALL * fptr_JNI_GetCreatedJavaVMs) (JavaVM **vmBuf, jsize bufLen, jsize *nVMs);
#if defined(_WIN32) && !defined(HAVE_BDJ_J2ME)
static void *_load_dll(const wchar_t *lib_path, const wchar_t *dll_search_path)
{
void *result;
typedef PVOID(WINAPI *AddDllDirectoryF) (PCWSTR);
typedef BOOL(WINAPI *RemoveDllDirectoryF)(PVOID);
AddDllDirectoryF pAddDllDirectory;
RemoveDllDirectoryF pRemoveDllDirectory;
pAddDllDirectory = (AddDllDirectoryF)GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")), "AddDllDirectory");
pRemoveDllDirectory = (RemoveDllDirectoryF)GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")), "RemoveDllDirectory");
if (pAddDllDirectory && pRemoveDllDirectory) {
result = LoadLibraryExW(lib_path, NULL,
LOAD_LIBRARY_SEARCH_SYSTEM32);
if (!result) {
PVOID cookie = pAddDllDirectory(dll_search_path);
result = LoadLibraryExW(lib_path, NULL,
LOAD_LIBRARY_SEARCH_SYSTEM32 |
LOAD_LIBRARY_SEARCH_USER_DIRS);
pRemoveDllDirectory(cookie);
}
} else {
result = LoadLibraryW(lib_path);
if (!result) {
SetDllDirectoryW(dll_search_path);
result = LoadLibraryW(lib_path);
SetDllDirectoryW(L"");
}
}
return result;
}
#endif
#if defined(_WIN32) && !defined(HAVE_BDJ_J2ME)
static void *_load_jvm_win32(const char **p_java_home)
{
static char java_home[256] = "";
wchar_t buf_loc[4096] = L"SOFTWARE\\JavaSoft\\Java Runtime Environment\\";
wchar_t buf_vers[128];
wchar_t java_path[4096] = L"";
char strbuf[256];
LONG r;
DWORD lType;
DWORD dSize = sizeof(buf_vers);
HKEY hkey;
r = RegOpenKeyExW(HKEY_LOCAL_MACHINE, buf_loc, 0, KEY_READ, &hkey);
# ifndef NO_JAVA9_SUPPORT
if (r != ERROR_SUCCESS) {
/* Try Java 9 */
wcscpy(buf_loc, L"SOFTWARE\\JavaSoft\\JRE\\");
r = RegOpenKeyExW(HKEY_LOCAL_MACHINE, buf_loc, 0, KEY_READ, &hkey);
}
# endif
if (r != ERROR_SUCCESS) {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "Error opening registry key SOFTWARE\\JavaSoft\\Java Runtime Environment\\\n");
return NULL;
}
r = RegQueryValueExW(hkey, L"CurrentVersion", NULL, &lType, (LPBYTE)buf_vers, &dSize);
RegCloseKey(hkey);
if (r != ERROR_SUCCESS) {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "CurrentVersion registry value not found\n");
return NULL;
}
if (debug_mask & DBG_BDJ) {
if (!WideCharToMultiByte(CP_UTF8, 0, buf_vers, -1, strbuf, sizeof(strbuf), NULL, NULL)) {
strbuf[0] = 0;
}
BD_DEBUG(DBG_BDJ, "JRE version: %s\n", strbuf);
}
wcscat(buf_loc, buf_vers);
dSize = sizeof(buf_loc);
r = RegOpenKeyExW(HKEY_LOCAL_MACHINE, buf_loc, 0, KEY_READ, &hkey);
if (r != ERROR_SUCCESS) {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "Error opening JRE version-specific registry key\n");
return NULL;
}
r = RegQueryValueExW(hkey, L"JavaHome", NULL, &lType, (LPBYTE)buf_loc, &dSize);
if (r == ERROR_SUCCESS) {
/* do not fail even if not found */
if (WideCharToMultiByte(CP_UTF8, 0, buf_loc, -1, java_home, sizeof(java_home), NULL, NULL)) {
*p_java_home = java_home;
}
BD_DEBUG(DBG_BDJ, "JavaHome: %s\n", java_home);
wcscat(java_path, buf_loc);
wcscat(java_path, L"\\bin");
}
dSize = sizeof(buf_loc);
r = RegQueryValueExW(hkey, L"RuntimeLib", NULL, &lType, (LPBYTE)buf_loc, &dSize);
RegCloseKey(hkey);
if (r != ERROR_SUCCESS) {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "RuntimeLib registry value not found\n");
return NULL;
}
void *result = _load_dll(buf_loc, java_path);
if (!WideCharToMultiByte(CP_UTF8, 0, buf_loc, -1, strbuf, sizeof(strbuf), NULL, NULL)) {
strbuf[0] = 0;
}
if (!result) {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "can't open library '%s'\n", strbuf);
} else {
BD_DEBUG(DBG_BDJ, "Using JRE library %s\n", strbuf);
}
return result;
}
#endif
#ifdef _WIN32
static inline char *_utf8_to_cp(const char *utf8)
{
int wlen = MultiByteToWideChar(CP_UTF8, 0, utf8, -1, NULL, 0);
if (wlen <= 0) {
return NULL;
}
wchar_t *wide = (wchar_t *)malloc(wlen * sizeof(wchar_t));
if (!wide) {
return NULL;
}
if (!MultiByteToWideChar(CP_UTF8, 0, utf8, -1, wide, wlen)) {
X_FREE(wide);
return NULL;
}
size_t len = WideCharToMultiByte(CP_ACP, 0, wide, -1, NULL, 0, NULL, NULL);
if (len <= 0) {
X_FREE(wide);
return NULL;
}
char *out = (char *)malloc(len);
if (out != NULL) {
if (!WideCharToMultiByte(CP_ACP, 0, wide, -1, out, len, NULL, NULL)) {
X_FREE(out);
}
}
X_FREE(wide);
return out;
}
#endif
#ifdef __APPLE__
// The current official JRE is installed by Oracle's Java Applet internet plugin:
#define MACOS_JRE_HOME "/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home"
static const char *jre_plugin_path = MACOS_JRE_HOME;
#endif
#if defined(__APPLE__) && !defined(HAVE_BDJ_J2ME)
#define MACOS_JAVA_HOME "/usr/libexec/java_home"
static char *_java_home_macos()
{
static char result[PATH_MAX] = "";
if (result[0])
return result;
pid_t java_home_pid;
int fd[2], exitcode;
if (pipe(fd)) {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "unable to set up pipes\n");
return NULL;
}
switch (java_home_pid = vfork())
{
case -1:
BD_DEBUG(DBG_BDJ | DBG_CRIT, "vfork failed\n");
return NULL;
case 0:
if (dup2(fd[1], STDOUT_FILENO) == -1) {
_exit(-1);
}
close(fd[1]);
close(fd[0]);
execl(MACOS_JAVA_HOME, MACOS_JAVA_HOME);
_exit(-1);
default:
close(fd[1]);
for (int len = 0; ;) {
int n = read(fd[0], result + len, sizeof result - len);
if (n <= 0)
break;
len += n;
result[len-1] = '\0';
}
waitpid(java_home_pid, &exitcode, 0);
}
if (result[0] == '\0' || exitcode) {
BD_DEBUG(DBG_BDJ | DBG_CRIT,
"Unable to read path from " MACOS_JAVA_HOME "\n");
result[0] = '\0';
return NULL;
}
BD_DEBUG(DBG_BDJ, "macos java home: '%s'\n", result );
return result;
}
#undef MACOS_JAVA_HOME
#endif
static void *_jvm_dlopen(const char *java_home, const char *jvm_dir, const char *jvm_lib)
{
if (java_home) {
char *path = str_printf("%s" DIR_SEP "%s" DIR_SEP "%s", java_home, jvm_dir, jvm_lib);
if (!path) {
BD_DEBUG(DBG_CRIT, "out of memory\n");
return NULL;
}
BD_DEBUG(DBG_BDJ, "Opening %s ...\n", path);
void *h = dl_dlopen(path, NULL);
# ifdef NO_JAVA9_SUPPORT
/* ignore Java 9+ */
if (h && dl_dlsym(h, "JVM_DefineModule")) {
BD_DEBUG(DBG_CRIT | DBG_BDJ, "Ignoring JVM %s: looks like Java 9 or later\n", path);
dl_dlclose(h);
h = NULL;
}
# endif
X_FREE(path);
return h;
} else {
BD_DEBUG(DBG_BDJ, "Opening %s ...\n", jvm_lib);
return dl_dlopen(jvm_lib, NULL);
}
}
static void *_jvm_dlopen_a(const char *java_home,
const char * const *jvm_dir, unsigned num_jvm_dir,
const char *jvm_lib)
{
unsigned ii;
void *dll = NULL;
for (ii = 0; !dll && ii < num_jvm_dir; ii++) {
dll = _jvm_dlopen(java_home, jvm_dir[ii], jvm_lib);
}
return dll;
}
#if defined(__APPLE__) && !defined(HAVE_BDJ_J2ME)
static void *_load_jli_macos()
{
const char *java_home = NULL;
static const char * const jli_dir[] = {
"jre/lib/jli", "lib/jli",
};
const unsigned num_jli_dir = sizeof(jli_dir) / sizeof(jli_dir[0]);
static const char jli_lib[] = "libjli";
void *handle;
/* JAVA_HOME set, use it */
java_home = getenv("JAVA_HOME");
if (java_home) {
return _jvm_dlopen_a(java_home, jli_dir, num_jli_dir, jli_lib);
}
java_home = _java_home_macos();
if (java_home) {
handle = _jvm_dlopen_a(java_home, jli_dir, num_jli_dir, jli_lib);
if (handle) {
return handle;
}
}
// check if the JRE is installed:
return _jvm_dlopen(jre_plugin_path, "lib/jli", jli_lib);
}
#endif
static void *_load_jvm(const char **p_java_home)
{
#ifdef HAVE_BDJ_J2ME
# ifdef _WIN32
static const char * const jvm_path[] = {NULL, JDK_HOME};
static const char * const jvm_dir[] = {"bin"};
static const char jvm_lib[] = "cvmi";
# else
static const char * const jvm_path[] = {NULL, JDK_HOME, "/opt/PhoneME"};
static const char * const jvm_dir[] = {"bin"};
static const char jvm_lib[] = "libcvm";
# endif
#else /* HAVE_BDJ_J2ME */
# ifdef _WIN32
static const char * const jvm_path[] = {NULL, JDK_HOME};
static const char * const jvm_dir[] = {"jre\\bin\\server",
"bin\\server",
"jre\\bin\\client",
"bin\\client",
};
static const char jvm_lib[] = "jvm";
# else
# ifdef __APPLE__
static const char * const jvm_path[] = {NULL, JDK_HOME, MACOS_JRE_HOME};
static const char * const jvm_dir[] = {"jre/lib/server",
"lib/server"};
# else
static const char * const jvm_path[] = {NULL,
JDK_HOME,
"/usr/lib/jvm/default-java",
"/usr/lib/jvm/default",
"/usr/lib/jvm/",
"/etc/java-config-2/current-system-vm",
"/usr/lib/jvm/java-7-openjdk",
"/usr/lib/jvm/java-7-openjdk-" JAVA_ARCH,
"/usr/lib/jvm/java-8-openjdk",
"/usr/lib/jvm/java-8-openjdk-" JAVA_ARCH,
"/usr/lib/jvm/java-6-openjdk",
};
static const char * const jvm_dir[] = {"jre/lib/" JAVA_ARCH "/server",
"lib/server",
"lib/client",
};
# endif
static const char jvm_lib[] = "libjvm";
# endif
#endif
const unsigned num_jvm_dir = sizeof(jvm_dir) / sizeof(jvm_dir[0]);
const unsigned num_jvm_path = sizeof(jvm_path) / sizeof(jvm_path[0]);
const char *java_home = NULL;
unsigned path_ind;
void *handle = NULL;
/* JAVA_HOME set, use it */
java_home = getenv("JAVA_HOME");
if (java_home) {
*p_java_home = java_home;
return _jvm_dlopen_a(java_home, jvm_dir, num_jvm_dir, jvm_lib);
}
#if defined(_WIN32) && !defined(HAVE_BDJ_J2ME)
handle = _load_jvm_win32(p_java_home);
if (handle) {
return handle;
}
#endif
#if defined(__APPLE__) && !defined(HAVE_BDJ_J2ME)
java_home = _java_home_macos();
if (java_home) {
handle = _jvm_dlopen_a(java_home, jvm_dir, num_jvm_dir, jvm_lib);
if (handle) {
*p_java_home = java_home;
return handle;
}
}
// check if the JRE is installed:
handle = _jvm_dlopen(jre_plugin_path, "lib/server", jvm_lib);
if (handle) {
*p_java_home = jre_plugin_path;
return handle;
}
#endif
BD_DEBUG(DBG_BDJ, "JAVA_HOME not set, trying default locations\n");
/* try our pre-defined locations */
for (path_ind = 0; !handle && path_ind < num_jvm_path; path_ind++) {
*p_java_home = jvm_path[path_ind];
handle = _jvm_dlopen_a(jvm_path[path_ind], jvm_dir, num_jvm_dir, jvm_lib);
}
if (!*p_java_home) {
*p_java_home = dl_get_path();
}
return handle;
}
static int _can_read_file(const char *fn)
{
BD_FILE_H *fp;
if (!fn) {
return 0;
}
fp = file_open(fn, "rb");
if (fp) {
uint8_t b;
int result = (int)file_read(fp, &b, 1);
file_close(fp);
if (result == 1) {
return 1;
}
BD_DEBUG(DBG_BDJ | DBG_CRIT, "Error reading %s\n", fn);
}
return 0;
}
void bdj_config_cleanup(BDJ_CONFIG *p)
{
X_FREE(p->cache_root);
X_FREE(p->persistent_root);
X_FREE(p->classpath[0]);
X_FREE(p->classpath[1]);
}
static char *_find_libbluray_jar0()
{
// pre-defined search paths for libbluray.jar
static const char * const jar_paths[] = {
#ifndef _WIN32
"/usr/share/java/" BDJ_JARFILE,
"/usr/share/libbluray/lib/" BDJ_JARFILE,
#endif
BDJ_JARFILE,
};
unsigned i;
// check if overriding the classpath
const char *classpath = getenv("LIBBLURAY_CP");
if (classpath) {
size_t cp_len = strlen(classpath);
char *jar;
// directory or file ?
if (cp_len > 0 && (classpath[cp_len - 1] == '/' || classpath[cp_len - 1] == '\\')) {
jar = str_printf("%s%s", classpath, BDJ_JARFILE);
} else {
jar = str_dup(classpath);
}
if (!jar) {
BD_DEBUG(DBG_CRIT, "out of memory\n");
return NULL;
}
if (_can_read_file(jar)) {
return jar;
}
X_FREE(jar);
BD_DEBUG(DBG_BDJ | DBG_CRIT, "invalid LIBBLURAY_CP %s\n", classpath);
return NULL;
}
BD_DEBUG(DBG_BDJ, "LIBBLURAY_CP not set, searching for "BDJ_JARFILE" ...\n");
// check directory where libbluray.so was loaded from
const char *lib_path = dl_get_path();
if (lib_path) {
char *cp = str_printf("%s" BDJ_JARFILE, lib_path);
if (!cp) {
BD_DEBUG(DBG_CRIT, "out of memory\n");
return NULL;
}
BD_DEBUG(DBG_BDJ, "Checking %s ...\n", cp);
if (_can_read_file(cp)) {
BD_DEBUG(DBG_BDJ, "using %s\n", cp);
return cp;
}
X_FREE(cp);
}
// check pre-defined directories
for (i = 0; i < sizeof(jar_paths) / sizeof(jar_paths[0]); i++) {
BD_DEBUG(DBG_BDJ, "Checking %s ...\n", jar_paths[i]);
if (_can_read_file(jar_paths[i])) {
BD_DEBUG(DBG_BDJ, "using %s\n", jar_paths[i]);
return str_dup(jar_paths[i]);
}
}
BD_DEBUG(DBG_BDJ | DBG_CRIT, BDJ_JARFILE" not found.\n");
return NULL;
}
static char *_find_libbluray_jar1(const char *jar0)
{
char *jar1;
int cut;
cut = (int)strlen(jar0) - (int)strlen(VERSION) - 9;
if (cut <= 0)
return NULL;
jar1 = str_printf("%.*sawt-%s", cut, jar0, jar0 + cut);
if (!jar1)
return NULL;
if (!_can_read_file(jar1)) {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "Cant access AWT jar file %s\n", jar1);
X_FREE(jar1);
}
return jar1;
}
static int _find_libbluray_jar(BDJ_CONFIG *storage)
{
if (!storage->classpath[0]) {
storage->classpath[0] = _find_libbluray_jar0();
X_FREE(storage->classpath[1]);
if (!storage->classpath[0])
return 0;
}
if (!storage->classpath[1]) {
storage->classpath[1] = _find_libbluray_jar1(storage->classpath[0]);
if (!storage->classpath[1]) {
X_FREE(storage->classpath[0]);
X_FREE(storage->classpath[1]);
}
}
return !!storage->classpath[0];
}
static const char *_bdj_persistent_root(BDJ_CONFIG *storage)
{
const char *root;
char *data_home;
if (storage->no_persistent_storage) {
return NULL;
}
if (!storage->persistent_root) {
root = getenv("LIBBLURAY_PERSISTENT_ROOT");
if (root) {
return root;
}
data_home = file_get_data_home();
if (data_home) {
storage->persistent_root = str_printf("%s" DIR_SEP "bluray" DIR_SEP "dvb.persistent.root" DIR_SEP, data_home);
X_FREE(data_home);
BD_DEBUG(DBG_BDJ, "LIBBLURAY_PERSISTENT_ROOT not set, using %s\n", storage->persistent_root);
}
if (!storage->persistent_root) {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "WARNING: BD-J persistent root not set\n");
}
}
return storage->persistent_root;
}
static const char *_bdj_buda_root(BDJ_CONFIG *storage)
{
const char *root;
char *cache_home;
if (storage->no_persistent_storage) {
return NULL;
}
if (!storage->cache_root) {
root = getenv("LIBBLURAY_CACHE_ROOT");
if (root) {
return root;
}
cache_home = file_get_cache_home();
if (cache_home) {
storage->cache_root = str_printf("%s" DIR_SEP "bluray" DIR_SEP "bluray.bindingunit.root" DIR_SEP, cache_home);
X_FREE(cache_home);
BD_DEBUG(DBG_BDJ, "LIBBLURAY_CACHE_ROOT not set, using %s\n", storage->cache_root);
}
if (!storage->cache_root) {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "WARNING: BD-J cache root not set\n");
}
}
return storage->cache_root;
}
static int _get_method(JNIEnv *env, jclass *cls, jmethodID *method_id,
const char *class_name, const char *method_name, const char *method_sig)
{
*method_id = NULL;
*cls = (*env)->FindClass(env, class_name);
if (!*cls) {
(*env)->ExceptionDescribe(env);
BD_DEBUG(DBG_BDJ | DBG_CRIT, "Failed to locate class %s\n", class_name);
(*env)->ExceptionClear(env);
return 0;
}
*method_id = (*env)->GetStaticMethodID(env, *cls, method_name, method_sig);
if (!*method_id) {
(*env)->ExceptionDescribe(env);
BD_DEBUG(DBG_BDJ | DBG_CRIT, "Failed to locate class %s method %s %s\n",
class_name, method_name, method_sig);
(*env)->DeleteLocalRef(env, *cls);
*cls = NULL;
(*env)->ExceptionClear(env);
return 0;
}
return 1;
}
static int _bdj_init(JNIEnv *env, struct bluray *bd, const char *disc_root, const char *bdj_disc_id,
BDJ_CONFIG *storage)
{
if (!bdj_register_native_methods(env)) {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "Couldn't register native methods.\n");
}
// initialize class org.videolan.Libbluray
jclass init_class;
jmethodID init_id;
if (!_get_method(env, &init_class, &init_id,
"org/videolan/Libbluray", "init",
"(JLjava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V")) {
return 0;
}
const char *disc_id = (bdj_disc_id && bdj_disc_id[0]) ? bdj_disc_id : "00000000000000000000000000000000";
jlong param_bdjava_ptr = (jlong)(intptr_t) bd;
jstring param_disc_id = (*env)->NewStringUTF(env, disc_id);
jstring param_disc_root = (*env)->NewStringUTF(env, disc_root);
jstring param_persistent_root = (*env)->NewStringUTF(env, _bdj_persistent_root(storage));
jstring param_buda_root = (*env)->NewStringUTF(env, _bdj_buda_root(storage));
(*env)->CallStaticVoidMethod(env, init_class, init_id,
param_bdjava_ptr, param_disc_id, param_disc_root,
param_persistent_root, param_buda_root);
(*env)->DeleteLocalRef(env, init_class);
(*env)->DeleteLocalRef(env, param_disc_id);
(*env)->DeleteLocalRef(env, param_disc_root);
(*env)->DeleteLocalRef(env, param_persistent_root);
(*env)->DeleteLocalRef(env, param_buda_root);
if ((*env)->ExceptionOccurred(env)) {
(*env)->ExceptionDescribe(env);
BD_DEBUG(DBG_BDJ | DBG_CRIT, "Failed to initialize BD-J (uncaught exception)\n");
(*env)->ExceptionClear(env);
return 0;
}
return 1;
}
int bdj_jvm_available(BDJ_CONFIG *storage)
{
const char *java_home;
void* jvm_lib = _load_jvm(&java_home);
if (!jvm_lib) {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "BD-J check: Failed to load JVM library\n");
return BDJ_CHECK_NO_JVM;
}
dl_dlclose(jvm_lib);
if (!_find_libbluray_jar(storage)) {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "BD-J check: Failed to load libbluray.jar\n");
return BDJ_CHECK_NO_JAR;
}
BD_DEBUG(DBG_BDJ, "BD-J check: OK\n");
return BDJ_CHECK_OK;
}
static int _find_jvm(void *jvm_lib, JNIEnv **env, JavaVM **jvm)
{
fptr_JNI_GetCreatedJavaVMs JNI_GetCreatedJavaVMs_fp;
*(void **)(&JNI_GetCreatedJavaVMs_fp) = dl_dlsym(jvm_lib, "JNI_GetCreatedJavaVMs");
if (JNI_GetCreatedJavaVMs_fp == NULL) {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "Couldn't find symbol JNI_GetCreatedJavaVMs.\n");
return 0;
}
jsize nVMs = 0;
JavaVM* javavm = NULL;
int result = JNI_GetCreatedJavaVMs_fp(&javavm, 1, &nVMs);
if (result == JNI_OK && nVMs > 0) {
*jvm = javavm;
(**jvm)->AttachCurrentThread(*jvm, (void**)env, NULL);
return 1;
}
return 0;
}
/* Export packages for Xlets */
static const char * const java_base_exports[] = {
"javax.media" ,
"javax.media.protocol",
"javax.tv.graphics",
"javax.tv.service",
"javax.tv.service.guide",
"javax.tv.service.selection",
"javax.tv.service.transport",
"javax.tv.service.navigation",
"javax.tv.net",
"javax.tv.locator",
"javax.tv.util",
"javax.tv.media",
"javax.tv.xlet",
"javax.microedition.xlet",
"org.davic.resources",
"org.davic.net",
"org.davic.media",
"org.davic.mpeg",
"org.dvb.user",
"org.dvb.dsmcc",
"org.dvb.application",
"org.dvb.ui",
"org.dvb.test",
"org.dvb.lang",
"org.dvb.event",
"org.dvb.io.ixc",
"org.dvb.io.persistent",
"org.dvb.media",
"org.havi.ui",
"org.havi.ui.event",
"org.bluray.application",
"org.bluray.ui",
"org.bluray.ui.event",
"org.bluray.net",
"org.bluray.storage",
"org.bluray.vfs",
"org.bluray.bdplus",
"org.bluray.system",
"org.bluray.media",
"org.bluray.ti",
"org.bluray.ti.selection",
"org.blurayx.s3d.ui",
"org.blurayx.s3d.system",
"org.blurayx.s3d.media",
"org.blurayx.s3d.ti",
"org.blurayx.uhd.ui",
"org.blurayx.uhd.system",
"org.blurayx.uhd.ti",
"com.aacsla.bluray.online",
"com.aacsla.bluray.mc",
"com.aacsla.bluray.mt",
};
static const size_t num_java_base_exports = sizeof(java_base_exports) / sizeof(java_base_exports[0]);
static int _create_jvm(void *jvm_lib, const char *java_home, const char *jar_file[2],
JNIEnv **env, JavaVM **jvm)
{
(void)java_home; /* used only with J2ME */
fptr_JNI_CreateJavaVM JNI_CreateJavaVM_fp;
JavaVMOption option[96];
int n = 0, result, java_9;
JavaVMInitArgs args;
*(void **)(&JNI_CreateJavaVM_fp) = dl_dlsym(jvm_lib, "JNI_CreateJavaVM");
if (JNI_CreateJavaVM_fp == NULL) {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "Couldn't find symbol JNI_CreateJavaVM.\n");
return 0;
}
#ifdef HAVE_BDJ_J2ME
java_9 = 0;
#else
java_9 = !!dl_dlsym(jvm_lib, "JVM_DefineModule");
if (java_9) {
BD_DEBUG(DBG_CRIT | DBG_BDJ, "Detected Java 9 or later JVM - support is experimental !\n");
}
#endif
memset(option, 0, sizeof(option));
option[n++].optionString = str_dup ("-Dawt.toolkit=java.awt.BDToolkit");
option[n++].optionString = str_dup ("-Djava.awt.graphicsenv=java.awt.BDGraphicsEnvironment");
option[n++].optionString = str_dup ("-Xms256M");
option[n++].optionString = str_dup ("-Xmx256M");
option[n++].optionString = str_dup ("-Xss2048k");
#ifdef HAVE_BDJ_J2ME
option[n++].optionString = str_printf("-Djava.home=%s", java_home);
option[n++].optionString = str_printf("-Xbootclasspath/a:%s/lib/xmlparser.jar", java_home);
option[n++].optionString = str_dup ("-XfullShutdown");
#endif
#ifdef _WIN32
# define CLASSPATH_FORMAT_P "%s;%s"
#else
# define CLASSPATH_FORMAT_P "%s:%s"
#endif
if (!java_9) {
option[n++].optionString = str_dup ("-Djavax.accessibility.assistive_technologies= ");
option[n++].optionString = str_printf("-Xbootclasspath/p:" CLASSPATH_FORMAT_P, jar_file[0], jar_file[1]);
} else {
option[n++].optionString = str_printf("--patch-module=java.base=%s", jar_file[0]);
option[n++].optionString = str_printf("--patch-module=java.desktop=%s", jar_file[1]);
/* Fix module graph */
option[n++].optionString = str_dup("--add-reads=java.base=java.desktop");
/* org.videolan.IxcRegistryImpl -> java.rmi.Remote */
option[n++].optionString = str_dup("--add-reads=java.base=java.rmi");
/* org.videolan.FontIndex -> java.xml. */
option[n++].optionString = str_dup("--add-reads=java.base=java.xml");
/* AWT needs to access logger and Xlet context */
option[n++].optionString = str_dup("--add-opens=java.base/org.videolan=java.desktop");
/* AWT needs to acess DVBGraphics */
option[n++].optionString = str_dup("--add-exports=java.base/org.dvb.ui=java.desktop");
/* org.havi.ui.HBackgroundImage needs to access sun.awt.image.FileImageSource */
option[n++].optionString = str_dup("--add-exports=java.desktop/sun.awt.image=java.base");
/* Export BluRay packages to Xlets */
for (size_t idx = 0; idx < num_java_base_exports; idx++) {
option[n++].optionString = str_printf("--add-exports=java.base/%s=ALL-UNNAMED", java_base_exports[idx]);
}
}
/* JVM debug options */
if (getenv("BDJ_JVM_DEBUG")) {
option[n++].optionString = str_dup("-ea");
//option[n++].optionString = str_dup("-verbose");
//option[n++].optionString = str_dup("-verbose:class,gc,jni");
option[n++].optionString = str_dup("-Xdebug");
option[n++].optionString = str_dup("-Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n");
}
#ifdef HAVE_BDJ_J2ME
/*
see: http://docs.oracle.com/javame/config/cdc/cdc-opt-impl/ojmeec/1.0/runtime/html/cvm.htm#CACBHBJB
trace method execution: BDJ_JVM_TRACE=0x0002
trace exceptions: BDJ_JVM_TRACE=0x4000
*/
if (getenv("BDJ_JVM_TRACE")) {
option[n++].optionString = str_printf("-Xtrace:%s", getenv("BDJ_JVM_TRACE"));
}
#endif
args.version = JNI_VERSION_1_4;
args.nOptions = n;
args.options = option;
args.ignoreUnrecognized = JNI_FALSE; // don't ignore unrecognized options
#ifdef _WIN32
/* ... in windows, JVM options are not UTF8 but current system code page ... */
/* luckily, most BD-J options can be passed in as java strings later. But, not class path. */
int ii;
for (ii = 0; ii < n; ii++) {
char *tmp = _utf8_to_cp(option[ii].optionString);
if (tmp) {
X_FREE(option[ii].optionString);
option[ii].optionString = tmp;
} else {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "Failed to convert %s\n", option[ii].optionString);
}
}
#endif
result = JNI_CreateJavaVM_fp(jvm, (void**) env, &args);
while (--n >= 0) {
X_FREE(option[n].optionString);
}
if (result != JNI_OK || !*env) {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "Failed to create new Java VM. JNI_CreateJavaVM result: %d\n", result);
return 0;
}
return 1;
}
BDJAVA* bdj_open(const char *path, struct bluray *bd,
const char *bdj_disc_id, BDJ_CONFIG *cfg)
{
BD_DEBUG(DBG_BDJ, "bdj_open()\n");
if (!_find_libbluray_jar(cfg)) {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "BD-J start failed: " BDJ_JARFILE " not found.\n");
return NULL;
}
#if defined(__APPLE__) && !defined(HAVE_BDJ_J2ME)
/* On macOS we need to load libjli to workaround a bug where the wrong
* version would be used: https://bugs.openjdk.java.net/browse/JDK-7131356
*/
void* jli_lib = _load_jli_macos();
if (!jli_lib) {
BD_DEBUG(DBG_BDJ, "Wasn't able to load JLI\n");
}
#endif
// first load the jvm using dlopen
const char *java_home = NULL;
void* jvm_lib = _load_jvm(&java_home);
if (!jvm_lib) {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "Wasn't able to load JVM\n");
return 0;
}
BDJAVA* bdjava = calloc(1, sizeof(BDJAVA));
if (!bdjava) {
dl_dlclose(jvm_lib);
return NULL;
}
JNIEnv* env = NULL;
JavaVM *jvm = NULL;
const char *jar[2] = { cfg->classpath[0], cfg->classpath[1] };
if (!_find_jvm(jvm_lib, &env, &jvm) &&
!_create_jvm(jvm_lib, java_home, jar, &env, &jvm)) {
X_FREE(bdjava);
dl_dlclose(jvm_lib);
return NULL;
}
#if defined(__APPLE__) && !defined(HAVE_BDJ_J2ME)
bdjava->h_libjli = jli_lib;
#endif
bdjava->h_libjvm = jvm_lib;
bdjava->jvm = jvm;
if (debug_mask & DBG_JNI) {
int version = (int)(*env)->GetVersion(env);
BD_DEBUG(DBG_BDJ, "Java version: %d.%d\n", version >> 16, version & 0xffff);
}
if (!_bdj_init(env, bd, path, bdj_disc_id, cfg)) {
bdj_close(bdjava);
return NULL;
}
/* detach java main thread (CreateJavaVM attachs calling thread to JVM) */
(*bdjava->jvm)->DetachCurrentThread(bdjava->jvm);
return bdjava;
}
void bdj_close(BDJAVA *bdjava)
{
JNIEnv *env;
int attach = 0;
jclass shutdown_class;
jmethodID shutdown_id;
if (!bdjava) {
return;
}
BD_DEBUG(DBG_BDJ, "bdj_close()\n");
if (bdjava->jvm) {
if ((*bdjava->jvm)->GetEnv(bdjava->jvm, (void**)&env, JNI_VERSION_1_4) != JNI_OK) {
(*bdjava->jvm)->AttachCurrentThread(bdjava->jvm, (void**)&env, NULL);
attach = 1;
}
if (_get_method(env, &shutdown_class, &shutdown_id,
"org/videolan/Libbluray", "shutdown", "()V")) {
(*env)->CallStaticVoidMethod(env, shutdown_class, shutdown_id);
if ((*env)->ExceptionOccurred(env)) {
(*env)->ExceptionDescribe(env);
BD_DEBUG(DBG_BDJ | DBG_CRIT, "Failed to shutdown BD-J (uncaught exception)\n");
(*env)->ExceptionClear(env);
}
(*env)->DeleteLocalRef(env, shutdown_class);
}
bdj_unregister_native_methods(env);
if (attach) {
(*bdjava->jvm)->DetachCurrentThread(bdjava->jvm);
}
}
if (bdjava->h_libjvm) {
dl_dlclose(bdjava->h_libjvm);
}
#if defined(__APPLE__) && !defined(HAVE_BDJ_J2ME)
if (bdjava->h_libjli) {
dl_dlclose(bdjava->h_libjli);
}
#endif
X_FREE(bdjava);
}
int bdj_process_event(BDJAVA *bdjava, unsigned ev, unsigned param)
{
static const char * const ev_name[] = {
/* 0 */ "NONE",
/* 1 */ "START",
/* 2 */ "STOP",
/* 3 */ "PSR102",
/* 4 */ "PLAYLIST",
/* 5 */ "PLAYITEM",
/* 6 */ "CHAPTER",
/* 7 */ "MARK",
/* 8 */ "PTS",
/* 9 */ "END_OF_PLAYLIST",
/* 10 */ "SEEK",
/* 11 */ "RATE",
/* 12 */ "ANGLE",
/* 13 */ "AUDIO_STREAM",
/* 14 */ "SUBTITLE",
/* 15 */ "SECONDARY_STREAM",
/* 16 */ "VK_KEY",
/* 17 */ "UO_MASKED",
/* 18 */ "MOUSE",
};
JNIEnv* env;
int attach = 0;
jclass event_class;
jmethodID event_id;
int result = -1;
if (!bdjava) {
return -1;
}
if (ev > BDJ_EVENT_LAST) {
BD_DEBUG(DBG_BDJ | DBG_CRIT, "bdj_process_event(%d,%d): unknown event\n", ev, param);
}
// Disable too verbose logging (PTS)
else if (ev != BDJ_EVENT_PTS) {
BD_DEBUG(DBG_BDJ, "bdj_process_event(%s,%d)\n", ev_name[ev], param);
}
if ((*bdjava->jvm)->GetEnv(bdjava->jvm, (void**)&env, JNI_VERSION_1_4) != JNI_OK) {
(*bdjava->jvm)->AttachCurrentThread(bdjava->jvm, (void**)&env, NULL);
attach = 1;
}
if (_get_method(env, &event_class, &event_id,
"org/videolan/Libbluray", "processEvent", "(II)Z")) {
if ((*env)->CallStaticBooleanMethod(env, event_class, event_id, (jint)ev, (jint)param)) {
result = 0;
}
if ((*env)->ExceptionOccurred(env)) {
(*env)->ExceptionDescribe(env);
BD_DEBUG(DBG_BDJ | DBG_CRIT, "bdj_process_event(%u,%u) failed (uncaught exception)\n", ev, param);
(*env)->ExceptionClear(env);
}
(*env)->DeleteLocalRef(env, event_class);
}
if (attach) {
(*bdjava->jvm)->DetachCurrentThread(bdjava->jvm);
}
return result;
}
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