1/*
2 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26#include "jni.h"
27#include "jni_util.h"
28
29#include "proxy_util.h"
30
31jclass proxy_class;
32jclass isaddr_class;
33jclass ptype_class;
34jmethodID isaddr_createUnresolvedID;
35jmethodID proxy_ctrID;
36jfieldID pr_no_proxyID;
37jfieldID ptype_httpID;
38jfieldID ptype_socksID;
39
40int initJavaClass(JNIEnv *env) {
41    jclass proxy_cls = NULL;
42    jclass ptype_cls = NULL;
43    jclass isaddr_cls = NULL;
44
45    // Proxy initialization
46    proxy_cls = (*env)->FindClass(env,"java/net/Proxy");
47    CHECK_NULL_RETURN(proxy_cls, 0);
48    proxy_class = (*env)->NewGlobalRef(env, proxy_cls);
49    CHECK_NULL_RETURN(proxy_class, 0);
50    proxy_ctrID = (*env)->GetMethodID(env, proxy_class, "<init>",
51            "(Ljava/net/Proxy$Type;Ljava/net/SocketAddress;)V");
52    CHECK_NULL_RETURN(proxy_ctrID, 0);
53
54    // Proxy$Type initialization
55    ptype_cls = (*env)->FindClass(env,"java/net/Proxy$Type");
56    CHECK_NULL_RETURN(ptype_cls, 0);
57    ptype_class = (*env)->NewGlobalRef(env, ptype_cls);
58    CHECK_NULL_RETURN(ptype_class, 0);
59    ptype_httpID = (*env)->GetStaticFieldID(env, ptype_class, "HTTP",
60                                            "Ljava/net/Proxy$Type;");
61    CHECK_NULL_RETURN(ptype_httpID, 0);
62    ptype_socksID = (*env)->GetStaticFieldID(env, ptype_class, "SOCKS",
63                                             "Ljava/net/Proxy$Type;");
64    CHECK_NULL_RETURN(ptype_socksID, 0);
65
66    // NO_PROXY
67    pr_no_proxyID = (*env)->GetStaticFieldID(env, proxy_class, "NO_PROXY",
68                                             "Ljava/net/Proxy;");
69    CHECK_NULL_RETURN(pr_no_proxyID, 0);
70
71    // InetSocketAddress initialization
72    isaddr_cls = (*env)->FindClass(env, "java/net/InetSocketAddress");
73    CHECK_NULL_RETURN(isaddr_cls, 0);
74    isaddr_class = (*env)->NewGlobalRef(env, isaddr_cls);
75    CHECK_NULL_RETURN(isaddr_class, 0);
76    isaddr_createUnresolvedID = (*env)->GetStaticMethodID(env, isaddr_class,
77            "createUnresolved",
78            "(Ljava/lang/String;I)Ljava/net/InetSocketAddress;");
79
80    return isaddr_createUnresolvedID != NULL ? 1 : 0;
81}
82
83jobject createProxy(JNIEnv *env, jfieldID ptype_ID, const char* phost, unsigned short pport) {
84    jobject jProxy = NULL;
85    jobject type_proxy = NULL;
86    type_proxy = (*env)->GetStaticObjectField(env, ptype_class, ptype_ID);
87    if (type_proxy) {
88        jstring jhost = NULL;
89        jhost = (*env)->NewStringUTF(env, phost);
90        if (jhost) {
91            jobject isa = NULL;
92            isa = (*env)->CallStaticObjectMethod(env, isaddr_class,
93                    isaddr_createUnresolvedID, jhost, pport);
94            if (isa) {
95                jProxy = (*env)->NewObject(env, proxy_class, proxy_ctrID,
96                                          type_proxy, isa);
97            }
98        }
99    }
100    return jProxy;
101}
102