| /* |
| * Copyright (c) 2004, 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| #include <windows.h> |
| #include <Winhttp.h> |
| |
| #include "jni.h" |
| #include "jni_util.h" |
| #include "jvm.h" |
| |
| #include "proxy_util.h" |
| |
| #include "sun_net_spi_DefaultProxySelector.h" |
| |
| /* |
| * These functions are used by the sun.net.spi.DefaultProxySelector class |
| * to access some platform specific settings. |
| * On Windows use WinHTTP functions to get the system settings. |
| */ |
| |
| /* Keep one static session for all requests. */ |
| static HINTERNET session = NULL; |
| |
| /* |
| * Class: sun_net_spi_DefaultProxySelector |
| * Method: init |
| * Signature: ()Z |
| */ |
| JNIEXPORT jboolean JNICALL |
| Java_sun_net_spi_DefaultProxySelector_init(JNIEnv *env, jclass clazz) { |
| |
| /* |
| * Get one WinHTTP session handle to initialize the WinHTTP internal data |
| * structures. Keep and use only this one for the whole life time. |
| */ |
| session = WinHttpOpen(L"Only used internal", /* we need no real agent string here */ |
| WINHTTP_ACCESS_TYPE_DEFAULT_PROXY, |
| WINHTTP_NO_PROXY_NAME, |
| WINHTTP_NO_PROXY_BYPASS, |
| 0); |
| if (session == NULL) { |
| return JNI_FALSE; |
| } |
| |
| if (!initJavaClass(env)) { |
| return JNI_FALSE; |
| } |
| |
| return JNI_TRUE; |
| } |
| |
| |
| #define MAX_STR_LEN 1024 |
| |
| /* A linked list element for a proxy */ |
| typedef struct list_item { |
| wchar_t *host; |
| int port; |
| struct list_item *next; |
| } list_item; |
| |
| /* Free the linked list */ |
| static void freeList(list_item *head) { |
| list_item *next = NULL; |
| list_item *current = head; |
| while (current != NULL) { |
| next = current->next; |
| free(current->host); |
| free(current); |
| current = next; |
| } |
| } |
| |
| |
| /* |
| * Creates a linked list of list_item elements that has to be freed later on. |
| * Returns the size of the array as int. |
| */ |
| static int createProxyList(LPWSTR win_proxy, const WCHAR *pproto, list_item **head) { |
| static const wchar_t separators[] = L"\t\r\n ;"; |
| list_item *current = NULL; |
| int nr_elems = 0; |
| wchar_t *context = NULL; |
| wchar_t *current_proxy = NULL; |
| BOOL error = FALSE; |
| |
| /* |
| * The proxy server list contains one or more of the following strings |
| * separated by semicolons or whitespace: |
| * ([<scheme>=][<scheme>"://"]<server>[":"<port>]) |
| */ |
| current_proxy = wcstok_s(win_proxy, separators, &context); |
| while (current_proxy != NULL) { |
| LPWSTR pport; |
| LPWSTR phost; |
| int portVal = 0; |
| wchar_t *next_proxy = NULL; |
| list_item *proxy = NULL; |
| wchar_t* pos = NULL; |
| |
| /* Filter based on the scheme, if there is one */ |
| pos = wcschr(current_proxy, L'='); |
| if (pos) { |
| *pos = L'\0'; |
| if (wcscmp(current_proxy, pproto) != 0) { |
| current_proxy = wcstok_s(NULL, separators, &context); |
| continue; |
| } |
| current_proxy = pos + 1; |
| } |
| |
| /* Let's check for a scheme and ignore it. */ |
| if ((phost = wcsstr(current_proxy, L"://")) != NULL) { |
| phost += 3; |
| } else { |
| phost = current_proxy; |
| } |
| |
| /* Get the port */ |
| pport = wcschr(phost, L':'); |
| if (pport != NULL) { |
| *pport = 0; |
| pport++; |
| swscanf(pport, L"%d", &portVal); |
| } |
| |
| proxy = (list_item *)malloc(sizeof(list_item)); |
| if (proxy != NULL) { |
| proxy->next = NULL; |
| proxy->port = portVal; |
| proxy->host = _wcsdup(phost); |
| |
| if (proxy->host != NULL) { |
| if (*head == NULL) { |
| *head = proxy; /* first elem */ |
| } |
| if (current != NULL) { |
| current->next = proxy; |
| } |
| current = proxy; |
| nr_elems++; |
| } else { |
| free(proxy); /* cleanup */ |
| } |
| } |
| /* goto next proxy if available... */ |
| current_proxy = wcstok_s(NULL, separators, &context); |
| } |
| return nr_elems; |
| } |
| |
| |
| |
| /* |
| * Class: sun_net_spi_DefaultProxySelector |
| * Method: getSystemProxies |
| * Signature: ([Ljava/lang/String;Ljava/lang/String;)[Ljava/net/Proxy; |
| */ |
| JNIEXPORT jobjectArray JNICALL |
| Java_sun_net_spi_DefaultProxySelector_getSystemProxies(JNIEnv *env, |
| jobject this, |
| jstring proto, |
| jstring host) |
| { |
| jobjectArray proxy_array = NULL; |
| jobject type_proxy = NULL; |
| LPCWSTR lpProto; |
| LPCWSTR lpHost; |
| list_item *head = NULL; |
| |
| BOOL use_auto_proxy = FALSE; |
| WINHTTP_CURRENT_USER_IE_PROXY_CONFIG ie_proxy_config; |
| WINHTTP_AUTOPROXY_OPTIONS auto_proxy_options; |
| WINHTTP_PROXY_INFO proxy_info; |
| LPWSTR win_proxy = NULL; |
| LPWSTR win_bypass_proxy = NULL; |
| |
| memset(&ie_proxy_config, 0, sizeof(WINHTTP_CURRENT_USER_IE_PROXY_CONFIG)); |
| memset(&auto_proxy_options, 0, sizeof(WINHTTP_AUTOPROXY_OPTIONS)); |
| memset(&proxy_info, 0, sizeof(WINHTTP_PROXY_INFO)); |
| |
| lpHost = (*env)->GetStringChars(env, host, NULL); |
| if (lpHost == NULL) { |
| if (!(*env)->ExceptionCheck(env)) |
| JNU_ThrowOutOfMemoryError(env, NULL); |
| return NULL; |
| } |
| |
| lpProto = (*env)->GetStringChars(env, proto, NULL); |
| if (lpProto == NULL) { |
| (*env)->ReleaseStringChars(env, host, lpHost); |
| if (!(*env)->ExceptionCheck(env)) |
| JNU_ThrowOutOfMemoryError(env, NULL); |
| return NULL; |
| } |
| |
| if (WinHttpGetIEProxyConfigForCurrentUser(&ie_proxy_config) == FALSE) { |
| /* cleanup and exit */ |
| (*env)->ReleaseStringChars(env, host, lpHost); |
| (*env)->ReleaseStringChars(env, proto, lpProto); |
| return NULL; |
| } |
| |
| if (ie_proxy_config.fAutoDetect) { |
| /* Windows uses WPAD */ |
| auto_proxy_options.dwAutoDetectFlags = WINHTTP_AUTO_DETECT_TYPE_DHCP | |
| WINHTTP_AUTO_DETECT_TYPE_DNS_A; |
| auto_proxy_options.dwFlags = WINHTTP_AUTOPROXY_AUTO_DETECT; |
| auto_proxy_options.fAutoLogonIfChallenged = TRUE; |
| use_auto_proxy = TRUE; |
| } else if (ie_proxy_config.lpszAutoConfigUrl != NULL) { |
| /* Windows uses PAC file */ |
| auto_proxy_options.lpszAutoConfigUrl = ie_proxy_config.lpszAutoConfigUrl; |
| auto_proxy_options.dwFlags = WINHTTP_AUTOPROXY_CONFIG_URL; |
| use_auto_proxy = TRUE; |
| } else if (ie_proxy_config.lpszProxy != NULL) { |
| /* Windows uses manually entered proxy. */ |
| use_auto_proxy = FALSE; |
| win_bypass_proxy = ie_proxy_config.lpszProxyBypass; |
| win_proxy = ie_proxy_config.lpszProxy; |
| } |
| |
| if (use_auto_proxy) { |
| WCHAR url[MAX_STR_LEN]; |
| /* Create url for WinHttpGetProxyForUrl */ |
| _snwprintf(url, sizeof(url) - 1, L"%s://%s", lpProto, lpHost); |
| /* Get proxy for URL from Windows */ |
| use_auto_proxy = WinHttpGetProxyForUrl(session, &url[0], &auto_proxy_options, &proxy_info); |
| if (use_auto_proxy) { |
| win_proxy = proxy_info.lpszProxy; |
| win_bypass_proxy = proxy_info.lpszProxyBypass; |
| } |
| } |
| |
| /* Check the bypass entry. */ |
| if (NULL != win_bypass_proxy) { |
| /* |
| * From MSDN: |
| * The proxy bypass list contains one or more server names separated by |
| * semicolons or whitespace. The proxy bypass list can also contain the |
| * string "<local>" to indicate that all local intranet sites are |
| * bypassed. Local intranet sites are considered to be all servers that |
| * do not contain a period in their name. |
| */ |
| wchar_t *context = NULL; |
| LPWSTR s = wcstok_s(win_bypass_proxy, L"; ", &context); |
| |
| while (s != NULL) { |
| size_t maxlen = wcslen(s); |
| if (wcsncmp(s, lpHost, maxlen) == 0) { |
| /* |
| * The URL host name matches with one of the prefixes, use a |
| * direct connection. |
| */ |
| goto noproxy; |
| } |
| if (wcsncmp(s, L"<local>", maxlen) == 0) { |
| /* |
| * All local intranet sites are bypassed - Microsoft consider all |
| * servers that do not contain a period in their name to be local. |
| */ |
| if (wcschr(lpHost, '.') == NULL) { |
| goto noproxy; |
| } |
| } |
| s = wcstok_s(NULL, L"; ", &context); |
| } |
| } |
| |
| if (win_proxy != NULL) { |
| wchar_t *context = NULL; |
| int defport = 0; |
| int nr_elems = 0; |
| |
| /* Set the default port value & proxy type from protocol. */ |
| if ((wcscmp(lpProto, L"http") == 0) || |
| (wcscmp(lpProto, L"ftp") == 0) || |
| (wcscmp(lpProto, L"gopher") == 0)) |
| defport = 80; |
| if (wcscmp(lpProto, L"https") == 0) |
| defport = 443; |
| if (wcscmp(lpProto, L"socks") == 0) { |
| defport = 1080; |
| type_proxy = (*env)->GetStaticObjectField(env, ptype_class, ptype_socksID); |
| } else { |
| type_proxy = (*env)->GetStaticObjectField(env, ptype_class, ptype_httpID); |
| } |
| if (type_proxy == NULL || (*env)->ExceptionCheck(env)) { |
| goto noproxy; |
| } |
| |
| nr_elems = createProxyList(win_proxy, lpProto, &head); |
| if (nr_elems != 0 && head != NULL) { |
| int index = 0; |
| proxy_array = (*env)->NewObjectArray(env, nr_elems, proxy_class, NULL); |
| if (proxy_array == NULL || (*env)->ExceptionCheck(env)) { |
| goto noproxy; |
| } |
| while (head != NULL && index < nr_elems) { |
| jstring jhost; |
| jobject isa; |
| jobject proxy; |
| |
| if (head->host != NULL && proxy_array != NULL) { |
| /* Let's create the appropriate Proxy object then. */ |
| if (head->port == 0) { |
| head->port = defport; |
| } |
| jhost = (*env)->NewString(env, head->host, (jsize)wcslen(head->host)); |
| if (jhost == NULL || (*env)->ExceptionCheck(env)) { |
| proxy_array = NULL; |
| } |
| isa = (*env)->CallStaticObjectMethod(env, isaddr_class, |
| isaddr_createUnresolvedID, jhost, |
| head->port); |
| if (isa == NULL || (*env)->ExceptionCheck(env)) { |
| proxy_array = NULL; |
| } |
| proxy = (*env)->NewObject(env, proxy_class, proxy_ctrID, type_proxy, isa); |
| if (proxy == NULL || (*env)->ExceptionCheck(env)) { |
| proxy_array = NULL; |
| } |
| (*env)->SetObjectArrayElement(env, proxy_array, index, proxy); |
| if ((*env)->ExceptionCheck(env)) { |
| proxy_array = NULL; |
| } |
| index++; |
| } |
| head = head->next; |
| } |
| } |
| } |
| |
| noproxy: |
| if (head != NULL) { |
| freeList(head); |
| } |
| if (proxy_info.lpszProxy != NULL) |
| GlobalFree(proxy_info.lpszProxy); |
| if (proxy_info.lpszProxyBypass != NULL) |
| GlobalFree(proxy_info.lpszProxyBypass); |
| if (ie_proxy_config.lpszAutoConfigUrl != NULL) |
| GlobalFree(ie_proxy_config.lpszAutoConfigUrl); |
| if (ie_proxy_config.lpszProxy != NULL) |
| GlobalFree(ie_proxy_config.lpszProxy); |
| if (ie_proxy_config.lpszProxyBypass != NULL) |
| GlobalFree(ie_proxy_config.lpszProxyBypass); |
| if (lpHost != NULL) |
| (*env)->ReleaseStringChars(env, host, lpHost); |
| if (lpProto != NULL) |
| (*env)->ReleaseStringChars(env, proto, lpProto); |
| |
| return proxy_array; |
| } |
