--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/server/plugins/java/jvm.c Mon Jul 08 11:10:54 2013 +0200
@@ -0,0 +1,206 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2013 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <dlfcn.h>
+
+#include <ucx/map.h>
+
+#include "jvm.h"
+#include "daemon/request.h"
+
+#ifdef __i386
+#define LIBJVM "/usr/java/jre/lib/i386/server/libjvm.so"
+#else
+
+#endif
+
+static JNIEnv *env = NULL;
+static JavaVM *jvm = NULL;
+
+static jobject plugin_instance = NULL;
+static jmethodID load_jmodules_method = NULL;
+static jmethodID exec_method = NULL;
+
+int jvm_init(pblock *pb, Session *sn, Request *rq) {
+ // load lib
+ void *lib = dlopen(LIBJVM, RTLD_GLOBAL | RTLD_NOW);
+ if(!lib) {
+ log_ereport(LOG_FAILURE, "Cannot load libjvm.so");
+ return REQ_ABORTED;
+ }
+
+ // get symbol
+ void *sym = dlsym(lib, "JNI_CreateJavaVM");
+ if(sym == NULL) {
+ log_ereport(
+ LOG_FAILURE,
+ "Cannot get symbol JNI_CreateJavaVM from lib");
+ return REQ_ABORTED;
+ }
+
+ // create JVM
+ JavaVMInitArgs vm_args;
+ JavaVMOption options[2];
+ options[0].optionString = "-Djava.class.path=lib/wsrt.jar";
+ options[1].optionString = "-Djava.library.path=lib/";
+ vm_args.version = JNI_VERSION_1_6;
+ vm_args.options = options;
+ vm_args.nOptions = 2;
+ vm_args.ignoreUnrecognized = JNI_TRUE;
+
+ CreateJVMFunc create_jvm = (CreateJVMFunc)sym;
+ if(create_jvm(&jvm, (void**)&env, &vm_args)) {
+ dlclose(lib);
+ log_ereport(LOG_FAILURE, "Cannot create JVM");
+ }
+
+ // load classes and methods
+ jclass cls = (*env)->FindClass(env, "webserver/ServerPlugin");
+ if(!cls) {
+ log_ereport(
+ LOG_FAILURE,
+ "jvm-init: missing or broken wsrt.jar");
+ log_ereport(
+ LOG_FAILURE,
+ "jvm-init: missing class webserver.ServerPlugin");
+ return REQ_ABORTED;
+ }
+
+ jmethodID constr = (*env)->GetMethodID(env, cls, "<init>", "()V");
+ if(!constr) {
+ log_ereport(
+ LOG_FAILURE,
+ "jvm-init: missing or broken wsrt.jar");
+ log_ereport(
+ LOG_FAILURE,
+ "jvm-init: missing constructor");
+ return REQ_ABORTED;
+ }
+ plugin_instance = (*env)->NewObject(env, cls, constr);
+ if(!plugin_instance) {
+ log_ereport(
+ LOG_FAILURE,
+ "jvm-init: cannot create ServerPlugin instance");
+ return REQ_ABORTED;
+ }
+
+ // methods
+ load_jmodules_method = (*env)->GetMethodID(
+ env,
+ cls,
+ "loadModule",
+ "(Ljava/lang/String;Ljava/lang/String;)I");
+ if(!load_jmodules_method) {
+ log_ereport(LOG_FAILURE, "jvm-init: missing or broken wsrt.jar");
+ log_ereport(LOG_FAILURE, "jvm-init: missing method (loadModule)");
+ return REQ_ABORTED;
+ }
+
+ exec_method = (*env)->GetMethodID(
+ env,
+ cls,
+ "exec",
+ "(I)I");
+ if(!exec_method) {
+ log_ereport(LOG_FAILURE, "jvm-init: missing or broken wsrt.jar");
+ log_ereport(LOG_FAILURE, "jvm-init: missing method (exec)");
+ return REQ_ABORTED;
+ }
+
+
+ return REQ_PROCEED;
+}
+
+int load_jmodules(pblock *pb, Session *sn, Request *rq) {
+ char *jar = pblock_findval("jar", pb);
+ char *classes = pblock_findval("classes", pb);
+
+ if(!jar || !classes) {
+ log_ereport(
+ LOG_MISCONFIG,
+ "load-jmodule: missing parameters (jar, classes)");
+ return REQ_ABORTED;
+ }
+
+ // check jvm
+ if(!plugin_instance) {
+ log_ereport(
+ LOG_FAILURE,
+ "load-jmodules: java plugin not properly loaded");
+ return REQ_ABORTED;
+ }
+ if(!load_jmodules_method) {
+ log_ereport(
+ LOG_FAILURE,
+ "load-jmodules: java plugin not properly loaded");
+ return REQ_ABORTED;
+ }
+
+ // load java module
+ jstring jar_param = (*env)->NewStringUTF(env, jar);
+ jstring classes_param = (*env)->NewStringUTF(env, classes);
+
+ jint ret = (*env)->CallIntMethod(
+ env,
+ plugin_instance,
+ load_jmodules_method,
+ jar_param,
+ classes_param);
+
+ // free stuff
+ (*env)->DeleteLocalRef(env, jar_param);
+ (*env)->DeleteLocalRef(env, classes_param);
+
+ return ret;
+}
+
+int jexec(pblock *pb, Session *sn, Request *rq) {
+ return REQ_NOACTION;
+}
+
+int jvm_method_exec(FuncStruct *func, pblock *pb, Session *sn, Request *rq) {
+ printf("jvm_method_exec: %d\n", func);
+ NSAPIRequest *nrq = (NSAPIRequest*)rq;
+
+ JNIEnv *e = NULL;
+ int r = (*jvm)->AttachCurrentThread(jvm, (void**)&e, NULL);
+
+ jint index = (jint)func->exec_data;
+ printf("(C) exec: %d\n", index);
+
+ jint ret = (*env)->CallIntMethod(
+ env,
+ plugin_instance,
+ exec_method,
+ index);
+
+ return ret;
+}
+