1 /*
2 * Copyright (c) 2004, 2010, 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 <windows.h>
27 #include "jni.h"
28 #include "jni_util.h"
29 #include "jvm.h"
30 #include "jlong.h"
31 #include "sun_net_spi_DefaultProxySelector.h"
32
33 /**
34 * These functions are used by the sun.net.spi.DefaultProxySelector class
35 * to access some platform specific settings.
36 * This is the Windows code using the registry settings.
37 */
38
39 static jclass proxy_class;
40 static jclass isaddr_class;
41 static jclass ptype_class;
42 static jmethodID isaddr_createUnresolvedID;
43 static jmethodID proxy_ctrID;
44 static jfieldID pr_no_proxyID;
45 static jfieldID ptype_httpID;
46 static jfieldID ptype_socksID;
47
48 /*
49 * Class: sun_net_spi_DefaultProxySelector
50 * Method: init
51 * Signature: ()Z
52 */
53 JNIEXPORT jboolean JNICALL
54 Java_sun_net_spi_DefaultProxySelector_init(JNIEnv *env, jclass clazz) {
55 HKEY hKey;
56 LONG ret;
57 jclass cls;
58
59 /**
60 * Get all the method & field IDs for later use.
61 */
62 cls = (*env)->FindClass(env,"java/net/Proxy");
63 CHECK_NULL_RETURN(cls, JNI_FALSE);
64 proxy_class = (*env)->NewGlobalRef(env, cls);
65 CHECK_NULL_RETURN(proxy_class, JNI_FALSE);
66 cls = (*env)->FindClass(env,"java/net/Proxy$Type");
67 CHECK_NULL_RETURN(cls, JNI_FALSE);
68 ptype_class = (*env)->NewGlobalRef(env, cls);
69 CHECK_NULL_RETURN(ptype_class, JNI_FALSE);
70 cls = (*env)->FindClass(env, "java/net/InetSocketAddress");
71 CHECK_NULL_RETURN(cls, JNI_FALSE);
72 isaddr_class = (*env)->NewGlobalRef(env, cls);
73 CHECK_NULL_RETURN(isaddr_class, JNI_FALSE);
74 proxy_ctrID = (*env)->GetMethodID(env, proxy_class, "<init>",
75 "(Ljava/net/Proxy$Type;Ljava/net/SocketAddress;)V");
76 CHECK_NULL_RETURN(proxy_ctrID, JNI_FALSE);
77 pr_no_proxyID = (*env)->GetStaticFieldID(env, proxy_class, "NO_PROXY", "Ljava/net/Proxy;");
78 CHECK_NULL_RETURN(pr_no_proxyID, JNI_FALSE);
79 ptype_httpID = (*env)->GetStaticFieldID(env, ptype_class, "HTTP", "Ljava/net/Proxy$Type;");
80 CHECK_NULL_RETURN(ptype_httpID, JNI_FALSE);
81 ptype_socksID = (*env)->GetStaticFieldID(env, ptype_class, "SOCKS", "Ljava/net/Proxy$Type;");
82 CHECK_NULL_RETURN(ptype_socksID, JNI_FALSE);
83 isaddr_createUnresolvedID = (*env)->GetStaticMethodID(env, isaddr_class, "createUnresolved",
84 "(Ljava/lang/String;I)Ljava/net/InetSocketAddress;");
85 CHECK_NULL_RETURN(isaddr_createUnresolvedID, JNI_FALSE);
86
87 /**
88 * Let's see if we can find the proper Registry entry.
89 */
90 ret = RegOpenKeyEx(HKEY_CURRENT_USER,
91 "Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings",
92 0, KEY_READ, (PHKEY)&hKey);
93 if (ret == ERROR_SUCCESS) {
94 RegCloseKey(hKey);
95 /**
96 * It worked, we can probably rely on it then.
97 */
98 return JNI_TRUE;
99 }
100
101 return JNI_FALSE;
102 }
103
104 #define MAX_STR_LEN 1024
105
106 /*
107 * Class: sun_net_spi_DefaultProxySelector
108 * Method: getSystemProxy
109 * Signature: ([Ljava/lang/String;Ljava/lang/String;)Ljava/net/Proxy;
110 */
111 JNIEXPORT jobject JNICALL
112 Java_sun_net_spi_DefaultProxySelector_getSystemProxy(JNIEnv *env,
113 jobject this,
114 jstring proto,
115 jstring host)
116 {
117 jobject isa = NULL;
118 jobject proxy = NULL;
119 jobject type_proxy = NULL;
120 jobject no_proxy = NULL;
121 jboolean isCopy;
122 HKEY hKey;
123 LONG ret;
124 const char* cproto;
125 const char* urlhost;
126 char pproto[MAX_STR_LEN];
127 char regserver[MAX_STR_LEN];
128 char override[MAX_STR_LEN];
129 char *s, *s2;
130 char *ctx = NULL;
131 int pport = 0;
132 int defport = 0;
133 char *phost;
134
135 /**
136 * Let's open the Registry entry. We'll check a few values in it:
137 *
138 * - ProxyEnable: 0 means no proxy, 1 means use the proxy
139 * - ProxyServer: a string that can take 2 forms:
140 * "server[:port]"
141 * or
142 * "protocol1=server[:port][;protocol2=server[:port]]..."
143 * - ProxyOverride: a string containing a list of prefixes for hostnames.
144 * e.g.: hoth;localhost;<local>
145 */
146 ret = RegOpenKeyEx(HKEY_CURRENT_USER,
147 "Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings",
148 0, KEY_READ, (PHKEY)&hKey);
149 if (ret == ERROR_SUCCESS) {
150 DWORD dwLen;
151 DWORD dwProxyEnabled;
152 ULONG ulType;
153 dwLen = sizeof(dwProxyEnabled);
154
155 /**
156 * Let's see if the proxy settings are to be used.
157 */
158 ret = RegQueryValueEx(hKey, "ProxyEnable", NULL, &ulType,
159 (LPBYTE)&dwProxyEnabled, &dwLen);
160 if ((ret == ERROR_SUCCESS) && (dwProxyEnabled > 0)) {
161 /*
162 * Yes, ProxyEnable == 1
163 */
164 dwLen = sizeof(override);
165 override[0] = 0;
166 ret = RegQueryValueEx(hKey, "ProxyOverride", NULL, &ulType,
167 (LPBYTE)&override, &dwLen);
168 dwLen = sizeof(regserver);
169 regserver[0] = 0;
170 ret = RegQueryValueEx(hKey, "ProxyServer", NULL, &ulType,
171 (LPBYTE)®server, &dwLen);
172 RegCloseKey(hKey);
173 if (ret == ERROR_SUCCESS) {
174 if (strlen(override) > 0) {
175 /**
176 * we did get ProxyServer and may have an override.
177 * So let's check the override list first, by walking down the list
178 * The semicolons (;) separated entries have to be matched with the
179 * the beginning of the hostname.
180 */
181 s = strtok_s(override, "; ", &ctx);
182 urlhost = (*env)->GetStringUTFChars(env, host, &isCopy);
183 if (urlhost == NULL) {
184 if (!(*env)->ExceptionCheck(env))
185 JNU_ThrowOutOfMemoryError(env, NULL);
186 return NULL;
187 }
188 while (s != NULL) {
189 if (strncmp(s, urlhost, strlen(s)) == 0) {
190 /**
191 * the URL host name matches with one of the prefixes,
192 * therefore we have to use a direct connection.
193 */
194 if (isCopy == JNI_TRUE)
195 (*env)->ReleaseStringUTFChars(env, host, urlhost);
196 goto noproxy;
197 }
198 s = strtok_s(NULL, "; ", &ctx);
199 }
200 if (isCopy == JNI_TRUE)
201 (*env)->ReleaseStringUTFChars(env, host, urlhost);
202 }
203
204 cproto = (*env)->GetStringUTFChars(env, proto, &isCopy);
205 if (cproto == NULL) {
206 if (!(*env)->ExceptionCheck(env))
207 JNU_ThrowOutOfMemoryError(env, NULL);
208 return NULL;
209 }
210
211 /*
212 * Set default port value & proxy type from protocol.
213 */
214 if ((strcmp(cproto, "http") == 0) ||
215 (strcmp(cproto, "ftp") == 0) ||
216 (strcmp(cproto, "gopher") == 0))
217 defport = 80;
218 if (strcmp(cproto, "https") == 0)
219 defport = 443;
220 if (strcmp(cproto, "socks") == 0) {
221 defport = 1080;
222 type_proxy = (*env)->GetStaticObjectField(env, ptype_class, ptype_socksID);
223 } else {
224 type_proxy = (*env)->GetStaticObjectField(env, ptype_class, ptype_httpID);
225 }
226
227 sprintf(pproto,"%s=", cproto);
228 if (isCopy == JNI_TRUE)
229 (*env)->ReleaseStringUTFChars(env, proto, cproto);
230 /**
231 * Let's check the protocol specific form first.
232 */
233 if ((s = strstr(regserver, pproto)) != NULL) {
234 s += strlen(pproto);
235 } else {
236 /**
237 * If we couldn't find *this* protocol but the string is in the
238 * protocol specific format, then don't use proxy
239 */
240 if (strchr(regserver, '=') != NULL)
241 goto noproxy;
242 s = regserver;
243 }
244 s2 = strchr(s, ';');
245 if (s2 != NULL)
246 *s2 = 0;
247
248 /**
249 * Is there a port specified?
250 */
251 s2 = strchr(s, ':');
252 if (s2 != NULL) {
253 *s2 = 0;
254 s2++;
255 sscanf(s2, "%d", &pport);
256 }
257 phost = s;
258
259 if (phost != NULL) {
260 /**
261 * Let's create the appropriate Proxy object then.
262 */
263 jstring jhost;
264 if (pport == 0)
265 pport = defport;
266 jhost = (*env)->NewStringUTF(env, phost);
267 CHECK_NULL_RETURN(jhost, NULL);
268 isa = (*env)->CallStaticObjectMethod(env, isaddr_class, isaddr_createUnresolvedID, jhost, pport);
269 CHECK_NULL_RETURN(isa, NULL);
270 proxy = (*env)->NewObject(env, proxy_class, proxy_ctrID, type_proxy, isa);
271 return proxy;
272 }
273 }
274 } else {
275 /* ProxyEnable == 0 or Query failed */
276 /* close the handle to the registry key */
277 RegCloseKey(hKey);
278 }
279 }
280
281 noproxy:
282 no_proxy = (*env)->GetStaticObjectField(env, proxy_class, pr_no_proxyID);
283 return no_proxy;
284 }