dlls/inetcpl.cpl/connections.c

   1 /*
   2  * Copyright 2018 Piotr Caban for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  *
  18  */
  19
  20 #include <stdarg.h>
  21 #include <windef.h>
  22 #include <winbase.h>
  23 #include <winnls.h>
  24 #include <wininet.h>
  25 #include <winuser.h>
  26 #include <winreg.h>
  27
  28 #include "inetcpl.h"
  29 #include "wine/debug.h"
  30 #include "wine/heap.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(inetcpl);
  33
  34 static const WCHAR internet_settings[] = L"Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings";
  35
  36 static BOOL initdialog_done;
  37
  38 #define CONNECTION_SETTINGS_VERSION 0x46
  39 #define CONNECTION_SETTINGS_MANUAL_PROXY 0x2
  40 #define CONNECTION_SETTINGS_PAC_SCRIPT 0x4
  41 #define CONNECTION_SETTINGS_WPAD 0x8
  42
  43 typedef struct {
  44     DWORD version;
  45     DWORD id;
  46     DWORD flags;
  47     BYTE data[1];
  48     /* DWORD proxy_server_len; */
  49     /* UTF8 proxy_server[proxy_server_len]; */
  50     /* DWORD bypass_list_len; */
  51     /* UTF8 bypass_list[bypass_list_len]; */
  52     /* DWORD configuration_script_len; */
  53     /* UTF8 configuration_script[configuration_script_len]; */
  54     /* DWORD unk[8]; set to 0 */
  55 } connection_settings;
  56
  57 static DWORD create_connection_settings(BOOL manual_proxy, const WCHAR *proxy_server,
  58         BOOL use_wpad, BOOL use_pac_script, const WCHAR *pac_url, connection_settings **ret)
  59 {
  60     DWORD size = FIELD_OFFSET(connection_settings, data), pos;
  61     DWORD proxy_server_len;
  62     DWORD pac_url_len;
  63
  64     size += sizeof(DWORD);
  65     if(proxy_server)
  66     {
  67         proxy_server_len = WideCharToMultiByte(CP_UTF8, 0, proxy_server, -1,
  68                 NULL, 0, NULL, NULL);
  69         if(!proxy_server_len) return 0;
  70         proxy_server_len--;
  71     }
  72     else
  73         proxy_server_len = 0;
  74     size += proxy_server_len;
  75     if(pac_url)
  76     {
  77         pac_url_len = WideCharToMultiByte(CP_UTF8, 0, pac_url, -1,
  78                 NULL, 0, NULL, NULL);
  79         if(!pac_url_len) return 0;
  80         pac_url_len--;
  81     }
  82     else
  83         pac_url_len = 0;
  84     size += sizeof(DWORD)*10;
  85
  86     *ret = heap_alloc_zero(size);
  87     if(!*ret) return 0;
  88
  89     (*ret)->version = CONNECTION_SETTINGS_VERSION;
  90     (*ret)->flags = 1;
  91     if(manual_proxy) (*ret)->flags |= CONNECTION_SETTINGS_MANUAL_PROXY;
  92     if(use_pac_script) (*ret)->flags |= CONNECTION_SETTINGS_PAC_SCRIPT;
  93     if(use_wpad) (*ret)->flags |= CONNECTION_SETTINGS_WPAD;
  94     ((DWORD*)(*ret)->data)[0] = proxy_server_len;
  95     pos = sizeof(DWORD);
  96     if(proxy_server_len)
  97     {
  98         WideCharToMultiByte(CP_UTF8, 0, proxy_server, -1,
  99                 (char*)(*ret)->data+pos, proxy_server_len, NULL, NULL);
 100         pos += proxy_server_len;
 101     }
 102     pos += sizeof(DWORD); /* skip proxy bypass list */
 103     ((DWORD*)((*ret)->data+pos))[0] = pac_url_len;
 104     pos += sizeof(DWORD);
 105     if(pac_url_len)
 106     {
 107         WideCharToMultiByte(CP_UTF8, 0, pac_url, -1,
 108                 (char*)(*ret)->data+pos, pac_url_len, NULL, NULL);
 109         pos += pac_url_len;
 110     }
 111     return size;
 112 }
 113
 114 static void connections_on_initdialog(HWND hwnd)
 115 {
 116     DWORD type, size, enabled;
 117     WCHAR address[INTERNET_MAX_URL_LENGTH], *port;
 118     WCHAR pac_url[INTERNET_MAX_URL_LENGTH];
 119     HKEY hkey, con;
 120     LONG res;
 121
 122     SendMessageW(GetDlgItem(hwnd, IDC_EDIT_PAC_SCRIPT),
 123             EM_LIMITTEXT, INTERNET_MAX_URL_LENGTH, 0);
 124     SendMessageW(GetDlgItem(hwnd, IDC_EDIT_PROXY_SERVER),
 125             EM_LIMITTEXT, INTERNET_MAX_URL_LENGTH-10, 0);
 126     SendMessageW(GetDlgItem(hwnd, IDC_EDIT_PROXY_PORT), EM_LIMITTEXT, 8, 0);
 127
 128     res = RegOpenKeyW(HKEY_CURRENT_USER, internet_settings, &hkey);
 129     if(res)
 130         return;
 131
 132     size = sizeof(enabled);
 133     res = RegQueryValueExW(hkey, L"ProxyEnable", NULL, &type, (BYTE*)&enabled, &size);
 134     if(res || type != REG_DWORD)
 135         enabled = 0;
 136     size = sizeof(address);
 137     res = RegQueryValueExW(hkey, L"ProxyServer", NULL, &type, (BYTE*)address, &size);
 138     if(res || type != REG_SZ)
 139         address[0] = 0;
 140     size = sizeof(pac_url);
 141     res = RegQueryValueExW(hkey, L"AutoConfigURL", NULL, &type, (BYTE*)pac_url, &size);
 142     if(res || type != REG_SZ)
 143         pac_url[0] = 0;
 144
 145     res = RegOpenKeyW(hkey, L"Connections", &con);
 146     RegCloseKey(hkey);
 147     if(!res)
 148     {
 149         connection_settings *settings = NULL;
 150         size = 0;
 151
 152         while((res = RegQueryValueExW(con, L"DefaultConnectionSettings", NULL, &type,
 153                         (BYTE*)settings, &size)) == ERROR_MORE_DATA || !settings)
 154         {
 155             connection_settings *new_settings = heap_realloc(settings, size);
 156             if(!new_settings)
 157             {
 158                 RegCloseKey(con);
 159                 heap_free(settings);
 160                 return;
 161             }
 162             settings = new_settings;
 163         }
 164         RegCloseKey(con);
 165
 166         if(!res && type == REG_BINARY)
 167         {
 168             if(settings->version != CONNECTION_SETTINGS_VERSION)
 169                 FIXME("unexpected structure version (%lx)\n", settings->version);
 170             else if(settings->flags & CONNECTION_SETTINGS_WPAD)
 171                 CheckDlgButton(hwnd, IDC_USE_WPAD, BST_CHECKED);
 172         }
 173         heap_free(settings);
 174     }
 175
 176     TRACE("ProxyEnable = %lx\n", enabled);
 177     TRACE("ProxyServer = %s\n", wine_dbgstr_w(address));
 178     TRACE("AutoConfigURL = %s\n", wine_dbgstr_w(pac_url));
 179
 180     if(enabled)
 181     {
 182         CheckDlgButton(hwnd, IDC_USE_PROXY_SERVER, BST_CHECKED);
 183         EnableWindow(GetDlgItem(hwnd, IDC_EDIT_PROXY_SERVER), TRUE);
 184         EnableWindow(GetDlgItem(hwnd, IDC_EDIT_PROXY_PORT), TRUE);
 185     }
 186
 187     port = wcschr(address, ':');
 188     if(port)
 189     {
 190         *port = 0;
 191         port++;
 192     }
 193     SetDlgItemTextW(hwnd, IDC_EDIT_PROXY_SERVER, address);
 194     if(port)
 195         SetDlgItemTextW(hwnd, IDC_EDIT_PROXY_PORT, port);
 196
 197     if(pac_url[0])
 198     {
 199         CheckDlgButton(hwnd, IDC_USE_PAC_SCRIPT, BST_CHECKED);
 200         EnableWindow(GetDlgItem(hwnd, IDC_EDIT_PAC_SCRIPT), TRUE);
 201         SetDlgItemTextW(hwnd, IDC_EDIT_PAC_SCRIPT, pac_url);
 202     }
 203
 204     return;
 205 }
 206
 207 static INT_PTR connections_on_command(HWND hwnd, WPARAM wparam)
 208 {
 209     BOOL checked;
 210
 211     switch (wparam)
 212     {
 213         case IDC_USE_PAC_SCRIPT:
 214             checked = IsDlgButtonChecked(hwnd, IDC_USE_PAC_SCRIPT);
 215             EnableWindow(GetDlgItem(hwnd, IDC_EDIT_PAC_SCRIPT), checked);
 216             break;
 217         case IDC_USE_PROXY_SERVER:
 218             checked = IsDlgButtonChecked(hwnd, IDC_USE_PROXY_SERVER);
 219             EnableWindow(GetDlgItem(hwnd, IDC_EDIT_PROXY_SERVER), checked);
 220             EnableWindow(GetDlgItem(hwnd, IDC_EDIT_PROXY_PORT), checked);
 221     }
 222
 223     switch (wparam)
 224     {
 225         case IDC_USE_WPAD:
 226         case IDC_USE_PAC_SCRIPT:
 227         case IDC_USE_PROXY_SERVER:
 228         case MAKEWPARAM(IDC_EDIT_PAC_SCRIPT, EN_CHANGE):
 229         case MAKEWPARAM(IDC_EDIT_PROXY_SERVER, EN_CHANGE):
 230         case MAKEWPARAM(IDC_EDIT_PROXY_PORT, EN_CHANGE):
 231             if(initdialog_done)
 232                 SendMessageW(GetParent(hwnd), PSM_CHANGED, (WPARAM)hwnd, 0);
 233             return TRUE;
 234     }
 235
 236     return FALSE;
 237 }
 238
 239 static INT_PTR connections_on_notify(HWND hwnd, WPARAM wparam, LPARAM lparam)
 240 {
 241     connection_settings *default_connection;
 242     WCHAR proxy[INTERNET_MAX_URL_LENGTH];
 243     WCHAR pac_script[INTERNET_MAX_URL_LENGTH];
 244     PSHNOTIFY *psn = (PSHNOTIFY*)lparam;
 245     DWORD proxy_len, port_len, pac_script_len;
 246     DWORD use_proxy, use_pac_script, use_wpad, size;
 247     LRESULT res;
 248     HKEY hkey, con;
 249
 250     if(psn->hdr.code != PSN_APPLY)
 251         return FALSE;
 252
 253     res = RegOpenKeyW(HKEY_CURRENT_USER, internet_settings, &hkey);
 254     if(res)
 255         return FALSE;
 256
 257     use_proxy = IsDlgButtonChecked(hwnd, IDC_USE_PROXY_SERVER);
 258     res = RegSetValueExW(hkey, L"ProxyEnable", 0, REG_DWORD,
 259             (BYTE*)&use_proxy, sizeof(use_proxy));
 260     if(res)
 261     {
 262         RegCloseKey(hkey);
 263         return FALSE;
 264     }
 265     TRACE("ProxyEnable set to %lx\n", use_proxy);
 266
 267     proxy_len = GetDlgItemTextW(hwnd, IDC_EDIT_PROXY_SERVER, proxy, ARRAY_SIZE(proxy));
 268     if(proxy_len)
 269     {
 270         proxy[proxy_len++] = ':';
 271         port_len = GetDlgItemTextW(hwnd, IDC_EDIT_PROXY_PORT, proxy+proxy_len,
 272                 ARRAY_SIZE(proxy)-proxy_len);
 273         if(!port_len)
 274         {
 275             proxy[proxy_len++] = '8';
 276             proxy[proxy_len++] = '0';
 277             proxy[proxy_len] = 0;
 278         }
 279
 280         res = RegSetValueExW(hkey, L"ProxyServer", 0, REG_SZ,
 281                 (BYTE*)proxy, (proxy_len+port_len)*sizeof(WCHAR));
 282     }
 283     else
 284     {
 285         res = RegDeleteValueW(hkey, L"ProxyServer");
 286         if(res == ERROR_FILE_NOT_FOUND)
 287             res = ERROR_SUCCESS;
 288     }
 289     if(res)
 290     {
 291         RegCloseKey(hkey);
 292         return FALSE;
 293     }
 294     TRACE("ProxyServer set to %s\n", wine_dbgstr_w(proxy));
 295
 296     use_pac_script = IsDlgButtonChecked(hwnd, IDC_USE_PAC_SCRIPT);
 297     pac_script_len = GetDlgItemTextW(hwnd, IDC_EDIT_PAC_SCRIPT,
 298             pac_script, ARRAY_SIZE(pac_script));
 299     if(!pac_script_len) use_pac_script = FALSE;
 300     if(use_pac_script)
 301     {
 302         res = RegSetValueExW(hkey, L"AutoConfigURL", 0, REG_SZ,
 303                 (BYTE*)pac_script, pac_script_len*sizeof(WCHAR));
 304     }
 305     else
 306     {
 307         res = RegDeleteValueW(hkey, L"AutoConfigURL");
 308         if(res == ERROR_FILE_NOT_FOUND)
 309             res = ERROR_SUCCESS;
 310     }
 311     if(res)
 312     {
 313         RegCloseKey(hkey);
 314         return FALSE;
 315     }
 316     TRACE("AutoConfigURL set to %s\n", wine_dbgstr_w(use_pac_script ? pac_script : NULL));
 317
 318     use_wpad = IsDlgButtonChecked(hwnd, IDC_USE_WPAD);
 319
 320     res = RegCreateKeyExW(hkey, L"Connections", 0, NULL, 0, KEY_WRITE, NULL, &con, NULL);
 321     RegCloseKey(hkey);
 322     if(res)
 323         return FALSE;
 324
 325     size = create_connection_settings(use_proxy, proxy, use_wpad,
 326         use_pac_script, pac_script, &default_connection);
 327     if(!size)
 328     {
 329         RegCloseKey(con);
 330         return FALSE;
 331     }
 332
 333     res = RegSetValueExW(con, L"DefaultConnectionSettings", 0, REG_BINARY,
 334             (BYTE*)default_connection, size);
 335     heap_free(default_connection);
 336     RegCloseKey(con);
 337     return !res;
 338 }
 339
 340 INT_PTR CALLBACK connections_dlgproc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
 341 {
 342     switch (msg)
 343     {
 344         case WM_INITDIALOG:
 345             connections_on_initdialog(hwnd);
 346             initdialog_done = TRUE;
 347             break;
 348         case WM_COMMAND:
 349             return connections_on_command(hwnd, wparam);
 350         case WM_NOTIFY:
 351             return connections_on_notify(hwnd, wparam, lparam);
 352     }
 353     return FALSE;
 354 }