/[winpt]/trunk/Src/WinPT.cpp
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revision 12 by twoaday, Thu Apr 14 12:56:25 2005 UTC revision 121 by twoaday, Mon Dec 12 11:19:56 2005 UTC
# Line 1  Line 1 
1  /* WinPT.cpp - Windows Privacy Tray (WinPT)  /* WinPT.cpp - Windows Privacy Tray (WinPT)
2   *      Copyright (C) 2000-2005 Timo Schulz   *      Copyright (C) 2000-2005 Timo Schulz
3   *   *
4   * This file is part of WinPT.   * This file is part of WinPT.
5   *   *
6   * WinPT is free software; you can redistribute it and/or modify   * WinPT is free software; you can redistribute it and/or modify
7   * it under the terms of the GNU General Public License as published by   * it under the terms of the GNU General Public License as published by
8   * the Free Software Foundation; either version 2 of the License, or   * the Free Software Foundation; either version 2 of the License, or
9   * (at your option) any later version.   * (at your option) any later version.
10   *   *
11   * WinPT is distributed in the hope that it will be useful,   * WinPT is distributed in the hope that it will be useful,
12   * but WITHOUT ANY WARRANTY; without even the implied warranty of   * but WITHOUT ANY WARRANTY; without even the implied warranty of
13   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   * GNU General Public License for more details.   * GNU General Public License for more details.
15   *   *
16   * You should have received a copy of the GNU General Public License   * You should have received a copy of the GNU General Public License
17   * along with WinPT; if not, write to the Free Software Foundation,   * along with WinPT; if not, write to the Free Software Foundation,
18   * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA   * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
19   */   */
20    #ifdef HAVE_CONFIG_H
21  #include <windows.h>  #include <config.h>
22    #endif
23  #include "../resource.h"  
24  #include "wptTypes.h"  #include <windows.h>
25  #include "wptW32API.h"  
26  #include "wptVersion.h"  #include "resource.h"
27  #include "wptErrors.h"  #include "wptTypes.h"
28  #include "wptGPG.h"  #include "wptW32API.h"
29  #include "wptRegistry.h"  #include "wptVersion.h"
30  #include "wptCommonCtl.h"  #include "wptErrors.h"
31  #include "wptDlgs.h"  #include "wptGPG.h"
32  #include "wptNLS.h"  #include "wptRegistry.h"
33  #include "wptKeyserver.h"  #include "wptCommonCtl.h"
34  #include "wptCard.h"  #include "wptDlgs.h"
35  #include "wptFileManager.h"  #include "wptNLS.h"
36  #include "wptContext.h"  #include "wptKeyserver.h"
37    #include "wptCard.h"
38  HINSTANCE glob_hinst; /* global instance for the dialogs */  #include "wptFileManager.h"
39  HWND glob_hwnd; /* global window handle for the dialogs */  #include "wptContext.h"
40  HWND activ_hwnd;  #include "wptCardEdit.h"
41  LOCK mo_file;  #include "wptCrypto.h"
42  int scard_support = 0;  
43  int debug = 0;  #define MIN_GPG_VER   "1.4.2"   /* Minimal GPG version. */
44  int mobile = 0;  #define MIN_GPGME_VER "1.2.0"   /* Minimal GPGME version. */
45  int gpg_read_only = 0;  
46  char gpgver[3];  
47    HINSTANCE glob_hinst;   /* global instance for the dialogs */
48    HWND glob_hwnd;         /* global window handle for the dialogs */
49  static void  HWND activ_hwnd;
50  update_keycache (HWND hwnd)  LOCK mo_file;
51  {  int scard_support = 0;
52      refresh_cache_s rcs = {0};  int debug = 0;
53      rcs.kr_reload = 0;  int mobile = 0;
54      rcs.kr_update = 1;  int gpg_read_only = 0;
55      rcs.tr_update = 1;  char gpgver[3];
56      DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYCACHE, hwnd,  
57                      keycache_dlg_proc, (LPARAM)&rcs);  
58  } /* update_keycache */  /* Load the key cache and rebuild the signature cache. */
59    static void
60    update_keycache (HWND hwnd)
61  static char *  {
62  get_gettext_lang (void)      refresh_cache_s rcs = {0};
63  {          rcs.kr_reload = 0;
64      char * fname;      rcs.kr_update = 1;
65      fname = get_reg_entry_mo ();      rcs.tr_update = 1;
66      if (!fname)      DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYCACHE, hwnd,
67          return NULL;                      keycache_dlg_proc, (LPARAM)&rcs);
68      return fname;  }
69  } /* get_gettext_lang */  
70    
71    /* Set GPGME debug mode. If @val is 0, the debug mode is disabled. */
72  static void  void
73  load_gettext (void)  gpg_set_debug_mode (int val)
74  {  {      
75      char * nls = NULL;      if (val)
76      char * file = NULL;          putenv ("GPGME_DEBUG=5:gpgme.dbg");
77        else
78      nls = get_gettext_lang ();          putenv ("GPGME_DEBUG=");
79      if (nls) {  }
80          set_gettext_file ("winpt", nls);  
81          file = make_filename (nls, "winpt", "mo");  
82          if (!file_exist_check (nls) && init_file_lock (&mo_file, file))  {  /* Return the name of the gettext language file. */
83              msg_box (NULL, _("Could not initizalize file lock.\n"  static char*
84                               "Native Language Support"),  get_gettext_lang (void)
85                       _("WinPT Error"), MB_ERR);  {    
86          }      char *fname;
87          free_if_alloc (nls);      fname = get_reg_entry_mo ();
88          free_if_alloc (file);      if (!fname)
89      }          return NULL;
90  } /* load_gettext */      return fname;
91    }
92    
93  /* check if the default key from the gpg.conf file is available in the  
94     keyring. if not, bail out because encryption won't work properly then. */  /* Initialize the gettext sub system. */
95  static int  static void
96  check_default_key (gpgme_keycache_t kc)  load_gettext (int prev_inst)
97  {  {
98      gpgme_key_t key;      char *nls = NULL;
99      gpgme_error_t err = GPGME_No_Error;      char *file = NULL;
100      char * defkey;  
101        nls = get_gettext_lang ();
102      defkey = get_gnupg_default_key ();      if (nls) {
103      if (defkey)          set_gettext_file ("winpt", nls);
104          err = gpgme_keycache_find_key (kc, defkey, 0, &key);          file = make_filename (nls, "winpt", "mo");
105      free_if_alloc (defkey);          if (!file_exist_check (nls) && init_file_lock (&mo_file, file))  {
106      return err? -1 : 0;              if (!prev_inst)
107  } /* check_default_key */                  msg_box (NULL, _("Could not initizalize file lock.\n"
108                                     "Native Language Support"),
109                             _("WinPT Error"), MB_ERR);
110  /* Return the WinPT program file name (with full pathname). */          }
111  static const char *          free_if_alloc (nls);
112  get_prog_part (const char * fname, int use_cwd)          free_if_alloc (file);
113  {      }
114      static char program[1024];  }
115      char currdir[256], * cmd = NULL;  
116      int j;  
117            /* check if the default key from the gpg.conf file is available in the
118      memset (currdir, 0, DIM (currdir));     keyring. if not, bail out because encryption won't work properly then. */
119      memset (program, 0, DIM (program));  static int
120            check_default_key (gpg_keycache_t kc)
121      if (use_cwd) {  {
122          GetCurrentDirectory (DIM (currdir)-1, currdir);      gpgme_key_t key;
123          _snprintf (program, DIM (program)-1, "%s\\%s", currdir, fname);      gpgme_error_t err = GPG_ERR_NO_ERROR;
124      }      char * defkey;
125      else {  
126          cmd = GetCommandLine ();      defkey = get_gnupg_default_key ();
127          if (cmd == NULL)      if (defkey)
128              return NULL;          err = gpg_keycache_find_key (kc, defkey, 0, &key);
129          strncpy (currdir, cmd, 255);      else
130          j = strlen (currdir);          msg_box (NULL, _("No useable secret key found."),
131          while (j--) {                   _("WinPT Error"), MB_ERR);
132              if (currdir[j] == '\\')      free_if_alloc (defkey);
133                  break;                return err? -1 : 0;
134          }  }
135          currdir[j] = 0;  
136          _snprintf (program, DIM (program)-1, "%s\\%s", currdir + 1, fname);  
137      }  /* Return the WinPT program file name (with full pathname). */
138      return program;  static const char*
139  } /* get_prog_part */  get_prog_part (const char * fname, int use_cwd)
140    {
141        static char program[512];
142  static int      char currdir[256];
143  check_crypto_engine (void)      char *cmd = NULL;
144  {      int j;
145      int ma=1, mi=2, pa=4; /* GPG 1.2.4 */          
146      int rc;      memset (currdir, 0, DIM (currdir));
147        memset (program, 0, DIM (program));
148      rc = check_gnupg_engine (&ma, &mi, &pa);          
149      if (rc == -1) {      if (use_cwd) {
150          msg_box (NULL, _("Could not read GnuPG version."), _("WinPT Error"), MB_ERR);          GetCurrentDirectory (DIM (currdir)-1, currdir);
151          return rc;          _snprintf (program, DIM (program)-1, "%s\\%s", currdir, fname);
152      }      }
153      else if (rc) {      else {
154          log_box (_("WinPT Error"), MB_ERR,          cmd = GetCommandLine ();
155                   _("Sorry, you need a newer GPG version.\n"          if (cmd == NULL)
156                     "GPG version %d.%d.%d requred GPG version 1.2.4"),              return NULL;
157                     ma, mi, pa);          strncpy (currdir, cmd, sizeof (currdir)-1);
158          return rc;          j = strlen (currdir);
159      }          while (j--) {
160      /* We enable smartcard support for GPG: 1.9.x or >= 1.4.0 */              if (currdir[j] == '\\')
161      if (ma >= 1 && mi >= 4)                  break;
162          scard_support = 1;          }
163            currdir[j] = 0;
164      gpgver[0] = ma;          _snprintf (program, DIM (program)-1, "%s\\%s", currdir + 1, fname);
165      gpgver[1] = mi;      }
166      gpgver[2] = pa;      return program;
167      return rc;  }
168  } /* check_crypto_engine */  
169    
170    /* Check that the underlying crypto engine fullfills the minimal
171  static int     requirements so all commands work properly. */
172  load_keyserver_conf (int quiet)  static int
173  {  check_crypto_engine (void)
174      const char * t;  {
175      int rc;      int ma=1, mi=4, pa=2; /* GPG 1.4.2 */
176        int rc;
177      if (reg_prefs.kserv_conf)  
178          t = reg_prefs.kserv_conf;      rc = check_gnupg_engine (&ma, &mi, &pa);
179      else if (!file_exist_check (get_prog_part ("keyserver.conf", 0)))      if (rc == -1) {
180          t = get_prog_part ("keyserver.conf", 0);          msg_box (NULL, _("Could not read GnuPG version."),
181      else                   _("WinPT Error"), MB_ERR);
182          t = "keyserver.conf";          return rc;
183      rc = kserver_load_conf (t);      }
184      if (rc && !quiet)      else if (rc) {
185          msg_box (NULL, winpt_strerror (rc), _("Keyserver"), MB_ERR);          log_box (_("WinPT Error"), MB_ERR,
186      return rc;                   _("Sorry, you need a newer GPG version.\n"
187  }                     "GPG version %d.%d.%d required GPG version "MIN_GPG_VER),
188                       ma, mi, pa);
189            return rc;
190  static void      }
191  enable_mobile_mode (void)      /* We enable smartcard support for GPG: >= 2 or >= 1.4.3 */
192  {      if (ma > 1 || pa >= 3)    
193      memset (&reg_prefs, 0, sizeof (reg_prefs));          scard_support = 1;
194      reg_prefs.always_trust = 0;  
195      reg_prefs.auto_backup = 0;      gpgver[0] = ma;
196      reg_prefs.cache_time = 0;      gpgver[1] = mi;
197      reg_prefs.expert = 0;      gpgver[2] = pa;
198      reg_prefs.keylist_mode = 1;      return rc;
199      reg_prefs.kserv_conf = m_strdup ("keyserver.conf");  }
200      reg_prefs.no_zip_mmedia = 1;  
201      reg_prefs.use_tmpfiles = 1;  
202      reg_prefs.word_wrap = 80;  /* Try to load the keyserver config file. If @quiet is 1
203      reg_prefs.use_viewer = 0; /* XXX */     do not show any errors. */
204  }  static int
205    load_keyserver_conf (int quiet)
206  char* get_subkey_fingerprint (gpgme_ctx_t ctx, const char *keyid);  {
207        const char *t;
208  int WINAPI      int rc;
209  WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)  
210  {      if (reg_prefs.kserv_conf)
211      WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};          t = reg_prefs.kserv_conf;
212      HACCEL accel_tab;      else if (!file_exist_check (get_prog_part ("keyserver.conf", 0)))
213      int rc, ec, created = 0, use_cwd = 0, nfiles = 0;          t = get_prog_part ("keyserver.conf", 0);
214      int first_start = 0, start_gpgprefs = 0;      else
215      const char * s;          t = "keyserver.conf";
216      MSG msg;      rc = kserver_load_conf (t);
217      HWND hwnd;      if (rc && !quiet)
218            msg_box (NULL, winpt_strerror (rc), _("Keyserver"), MB_ERR);
219      glob_hinst = hinst;      return rc;
220        }
221      gpgme_lib_init ();  
222      #ifdef _DEBUG  
223      gpgme_set_debug_mode (1);  /* Enable the mobility mode. */
224      #endif  static void
225      gpgme_set_pgm_string ("WinPT "PGM_VERSION);  enable_mobile_mode (void)
226    {
227      s = PTD_get_version ();      memset (&reg_prefs, 0, sizeof (reg_prefs));
228      if (strcmp (s, "0.8.0")) {      reg_prefs.always_trust = 0;
229          log_box (_("Privacy Tray Dynamic (PTD)"), MB_ERR,      reg_prefs.auto_backup = 0;
230                   _("Please update your PTD.dll to the newest version, "      reg_prefs.cache_time = 0;
231                     "the version (%s) you use is too old."), s);      reg_prefs.expert = 0;
232          return 0;      reg_prefs.keylist_mode = 1;
233      }      reg_prefs.kserv_conf = m_strdup ("keyserver.conf");
234        reg_prefs.no_zip_mmedia = 1;
235      if (gpg_md_selftest ()) {      reg_prefs.use_tmpfiles = 1;
236          msg_box (NULL, _("Cryptographic selftest failed."),      reg_prefs.word_wrap = 80;
237                   _("WinPT Error"), MB_ERR);      reg_prefs.use_viewer = 0; /* XXX */
238          return 0;  }
239      }  
240    
241      if (cmdline && stristr (cmdline, "--mobile"))  /* Main entry point. */
242          mobile = 1;  int WINAPI
243    WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)
244      set_default_kserver ();  {
245        WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};
246      if (!mobile) {      HACCEL accel_tab;
247          regist_inst_gnupg (1);      MSG msg;
248          regist_inst_winpt (1, &created);      HWND hwnd = NULL;
249      }      WORD ver[3], ptdver[4];
250      else {      int rc, ec, created = 0;
251          enable_mobile_mode ();      int first_start = 0, start_gpgprefs = 0;
252          /* XXX: ask for GPG path */      int winpt_inst_found = 0;
253          created = 1; /* Disable registry writing */      int start_manager = 0;
254      }      const char *s;
255    
256      if (!created) {      glob_hinst = hinst;
257          memset (&reg_prefs, 0, sizeof (reg_prefs));      if (cmdline && stristr (cmdline, "--stop")) {
258          reg_prefs.use_tmpfiles = 1; /* default */          hwnd = FindWindow ("WinPT", "WinPT");
259          reg_prefs.fm.progress = 0; /* XXX: fix the bug and enable it again */          if (hwnd != NULL)
260          get_reg_winpt_prefs (&reg_prefs);              PostMessage (hwnd, WM_DESTROY, 0, 0);
261          if (!reg_prefs.no_hotkeys)          return 0;
262              hotkeys_modify ();      }
263      }  
264        /*
265      rc = gnupg_check_homedir ();      OSVERSIONINFO osinf;
266      if (rc) {      memset (&osinf, 0, sizeof (osinf));
267          log_box (_("WinPT Error"), MB_ERR,      if (GetVersionEx (&osinf) &&
268                   _("GPG home directory is not set correctly.\n"          osinf.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS &&
269                     "Please check the GPG registry settings:\n%s."),          osinf.dwMinorVersion == 0) {
270                   winpt_strerror (rc));          msg_box (NULL, "WinPT propably does not work on Windows 95 without restrictions",
271          const char * s = get_filename_dlg (GetActiveWindow (), FILE_OPEN,                   "WinPT Warning", MB_INFO);
272                                             _("Select GPG Public Keyring"),      }
273                                             _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),      */
274                                             NULL);  
275          if (s && !file_exist_check (s))      #ifdef _DEBUG
276          {      gpg_set_debug_mode (1);
277              size_t n;      debug = 1;
278              char * p = strrchr (s, '\\');      #endif
279              if (!p)  
280                  BUG (0);      get_file_version ("WinPT.exe", &ver[0], &ver[1], &ver[2], &ver[3]);
281              n = p - s;      get_file_version ("PTD.dll", &ptdver[0], &ptdver[1],
282              if (n)                                   &ptdver[2], &ptdver[3]);
283              {      /* XXX
284                  char * file = new char[n+1];      if (ptdver[0] != ver[0] || ptdver[1] != ver[1]|| ptdver[2] != ver[2]) {
285                  if (!file)          log_box (_("WinPT Error"), MB_ERR,
286                      BUG (NULL);                   _("The PTD.dll file has a different version than WinPT.exe\n"
287                  memset (file, 0, n);                     "Please update the PTD.dll to version %d.%d.%d"),
288                  memcpy (file, s, n);                     ver[0], ver[1], ver[2]);
289                  file[n] = '\0';                  return 0;
290                  set_reg_entry_gpg ("HomeDir", file);      }
291                  free_if_alloc (file);      */
292                  gnupg_check_homedir (); /* change gpgProgram if needed */      if (gpg_md_selftest ()) {
293              }          msg_box (NULL, _("Cryptographic selftest failed."),
294          }                   _("WinPT Error"), MB_ERR);
295          else {          return 0;
296              msg_box (NULL, _("GPG home directory could not be determited."),      }
297                       _("WinPT Error"), MB_ERR);  
298              goto start;      s = gpgme_check_version (MIN_GPGME_VER);
299          }      if (!s || !*s) {
300      }          msg_box (NULL, _("A newer GPGME version is needed; at least "MIN_GPGME_VER),
301                     _("WinPT Error"), MB_ERR);
302      rc = check_gnupg_prog ();          return 0;
303      if (rc) {      }
304          if (msg_box (NULL, _("Could not find the GPG binary (gpg.exe).\n"  
305                               "Do you want to start the GPG preferences to "      CreateMutex (NULL, TRUE, PGM_NAME);
306                               "correct  this problem?"), _("WinPT Error"),      if (GetLastError () == ERROR_ALREADY_EXISTS)
307                               MB_INFO|MB_YESNO) == IDYES)          winpt_inst_found = 1;
308              start_gpgprefs = 1;  
309          else      if (cmdline && stristr (cmdline, "--mobile")) {
310          {          msg_box (NULL, "WARNING: mobile modus is not fully implemented yet!",
311              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);                   "WinPT", MB_INFO);
312              return 0;          mobile = 1;
313          }      }
314      }  
315        set_default_kserver ();
316      rc = gnupg_access_files ();      load_gettext (winpt_inst_found);
317      if (!start_gpgprefs && rc)  
318      {      if (!mobile) {
319          if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS)          regist_inst_gnupg (1);
320          {          regist_inst_winpt (1, &created);
321              ec = msg_box (NULL,      }
322                  _("Could not access and/or find the public and secret keyring.\n"      else {
323                    "If this is an accident, quit the program and fix it.\n\n"          enable_mobile_mode ();
324                    "Continue if you want that WinPT offers you more choices.\n"),          /* XXX: ask for GPG path */
325                    "WinPT", MB_INFO|MB_YESNO);          created = 1; /* Disable registry writing */
326              if (ec == IDYES)      }
327                  first_start = 1;  
328          }      if (!created) {
329          if (!first_start)          memset (&reg_prefs, 0, sizeof (reg_prefs));
330          {          reg_prefs.use_tmpfiles = 1; /* default */
331              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);          reg_prefs.fm.progress = 0; /* XXX: fix the bug and enable it again */
332              return 0;          get_reg_winpt_prefs (&reg_prefs);
333          }          if (!reg_prefs.no_hotkeys)
334      }              hotkeys_modify ();
335            gnupg_load_config ();
336      if (!first_start)      }
337      {  
338          rc = gpg_check_permissions (1);      rc = gnupg_check_homedir ();
339          if (rc && rc == 2)      if (rc) {
340              gpg_read_only = 1;          log_box (_("WinPT Error"), MB_ERR,
341          else if (rc)                   _("GPG home directory is not set correctly.\n"
342              return 0;                     "Please check the GPG registry settings:\n%s."),
343      }                   winpt_strerror (rc));
344            s = get_fileopen_dlg (GetActiveWindow (),
345      load_gettext ();                                _("Select GPG Public Keyring"),
346      init_gnupg_table ();                                _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),
347                                  NULL);
348      nfiles = fm_parse_command_line (cmdline);          if (s != NULL) {
349      if (nfiles > 0)              size_t n;
350          return 0;              char *p = strrchr (s, '\\');
351                if (!p)
352      if (cmdline && stristr (cmdline, "--wipe-freespace")) {                  BUG (0);
353          dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_SPACE_SECDEL,              n = p - s;
354                              GetDesktopWindow(), space_wipefrees_dlg_proc, NULL,              if (n) {
355                              _("Wipe Free Space"), IDS_WINPT_SPACE_SECDEL);                  char *file = new char[n+1];
356          free_gnupg_table ();                  if (!file)
357          return 0;                      BUG (NULL);
358      }                  memset (file, 0, n);
359                    memcpy (file, s, n);
360      load_keyserver_conf (cmdline? 1 : 0);                  file[n] = '\0';        
361      if (cmdline && (stristr (cmdline, "--keymanager")                  set_reg_entry_gpg ("HomeDir", file);
362                  || stristr (cmdline, "--cardmanager"))) {                  free_if_alloc (file);
363          update_keycache (GetDesktopWindow ());                  gnupg_check_homedir (); /* change gpgProgram if needed */
364          if (stristr (cmdline, "keymanager"))              }
365              dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_KEYMISC,          }
366                              GetDesktopWindow(), keymanager_dlg_proc, NULL,          else {
367                              _("Key Manager"), IDS_WINPT_KEYMISC);              msg_box (NULL, _("GPG home directory could not be determited."),
368          else {                       _("WinPT Error"), MB_ERR);
369              gpgme_card_t crd = smartcard_init ();              goto start;
370              if (crd)          }
371                  dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_CARD_EDIT,      }
372                                    GetDesktopWindow(), card_edit_dlg_proc,  
373                                    (LPARAM)crd, _("Card Manager"),      rc = check_gnupg_prog ();
374                                    IDS_WINPT_CARD_EDIT);      if (rc) {
375              gpgme_card_release (crd);          if (msg_box (NULL, _("Could not find the GPG binary (gpg.exe).\n"
376          }                               "Do you want to start the GPG preferences to "
377          keycache_release ();                               "correct  this problem?"), _("WinPT Error"),
378          free_gnupg_table ();                               MB_INFO|MB_YESNO) == IDYES)
379          return 0;              start_gpgprefs = 1;
380      }          else {
381                msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
382      CreateMutex (NULL, TRUE, PGM_NAME);              return 0;
383      if (GetLastError () == ERROR_ALREADY_EXISTS) {          }
384          free_gnupg_table ();      }
385          return 0;  
386      }      rc = gnupg_access_files ();
387        if (!start_gpgprefs && rc) {
388      if (cmdline) {          if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS) {
389          if (stristr (cmdline, "--enable-debug") || stristr (cmdline, "--debug")) {              ec = msg_box (NULL,
390              gpgme_set_debug_mode (1);                  _("Could not access and/or find the public and secret keyring.\n"
391              winpt_debug_msg ();                    "If this is an accident, quit the program and fix it.\n\n"
392              debug = 1;                    "Continue if you want that WinPT offers you more choices.\n"),
393          }                    "WinPT", MB_INFO|MB_YESNO);
394      }              if (ec == IDYES)
395                    first_start = 1;
396      wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));          }
397      rc = RegisterClass (&wc);          if (!first_start) {
398      if (rc == FALSE) {              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
399          msg_box (NULL, _("Could not register window class"), _("WinPT Error"), MB_ERR);              return 0;
400          free_gnupg_table ();          }
401          return 0;      }
402      }  
403        if (!first_start) {
404      hwnd = CreateWindow (PGM_NAME,          rc = gpg_check_permissions (1);
405                           PGM_NAME,          if (rc && rc == 2)
406                           0, 0, 0, 0, 0,              gpg_read_only = 1;
407                           NULL,          else if (rc)
408                           NULL,              return 0;
409                           hinst,      }
410                           NULL);      
411      if (hwnd == NULL) {      init_gnupg_table ();
412          msg_box (NULL, _("Could not create window"), _("WinPT Error"), MB_ERR);  
413          free_gnupg_table ();      if (fm_parse_command_line (cmdline) > 0) {
414          return 0;          free_gnupg_table ();
415      }          return 0;
416      glob_hwnd = hwnd;      }
417      UpdateWindow (hwnd);  
418        if (cmdline && stristr (cmdline, "--wipe-freespace")) {
419      if (!first_start && !start_gpgprefs) {          dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_SPACE_SECDEL,
420          gnupg_backup_options (1);                              GetDesktopWindow(), space_wipefrees_dlg_proc, 0,
421          gnupg_backup_options (0);                              _("Wipe Free Space"), IDS_WINPT_SPACE_SECDEL);
422                    free_gnupg_table ();
423          rc = check_crypto_engine ();          return 0;
424          if (rc) {      }
425              DestroyWindow (hwnd);  
426              free_gnupg_table ();      load_keyserver_conf (cmdline? 1 : 0);
427              return 0;  
428          }      if (cmdline && (stristr (cmdline, "--keymanager")
429      }                  || stristr (cmdline, "--cardmanager"))) {
430            /* If an instance of WinPT is running, just send the command
431      if (start_gpgprefs)             to open the key manager. Otherwise start a new instance.
432      {           */
433          char *ring;          HWND tray = FindWindow ("WinPT", "WinPT");
434          size_t size = 0;          if (stristr (cmdline, "keymanager"))
435          DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,              start_manager = ID_WINPT_KEY;
436                          gpgprefs_dlg_proc, NULL);          else
437          ring = get_gnupg_keyring (0, !NO_STRICT);              start_manager = ID_WINPT_CARD;
438          if (gnupg_access_keyring (0) == -1 && get_file_size (ring) == 0)          if (tray != NULL) {
439              first_start = 1; /* The keyring is empty! */              PostMessage (tray, WM_COMMAND, start_manager, 0);
440          free_if_alloc (ring);              free_gnupg_table ();
441      }              return 0;
442            }
443      if (first_start) {      }
444          struct key_wizard_s c, dummy;  
445  start:      /* If we found another WinPT instance, just quit to avoid it
446          DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_FIRST, hwnd,         will be executed twice. */
447                          first_run_dlg_proc, (LPARAM)&dummy);      if (winpt_inst_found) {
448          switch (dummy.interactive)          log_debug ("%s", "WinMain: WinPT is already running.");
449          {          free_gnupg_table ();
450          case SETUP_KEYGEN:          return 0;
451              c.interactive = 1;      }
452              rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYWIZARD,  
453                                   hwnd, keygen_wizard_dlg_proc, (LPARAM)&c);      if (cmdline) {
454              if (!rc)          if (stristr (cmdline, "--enable-debug") ||
455                  goto start;              stristr (cmdline, "--debug")) {
456              break;              gpg_set_debug_mode (1);
457                winpt_debug_msg ();
458          case SETUP_IMPORT:              debug = 1;
459              rc = gnupg_copy_keyrings ();          }
460              if (rc) {      }
461                  msg_box (hwnd, winpt_strerror (rc), _("WinPT Error"), MB_ERR);  
462                  goto start;      wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));
463              }      rc = RegisterClass (&wc);
464              break;      if (rc == FALSE) {
465            msg_box (NULL, _("Could not register window class"),
466          case SETUP_EXISTING:                   _("WinPT Error"), MB_ERR);
467              DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,          free_gnupg_table ();
468                              gpgprefs_dlg_proc, NULL);          return 0;
469              break;      }
470    
471          case -1:      hwnd = CreateWindow (PGM_NAME,
472              DestroyWindow (hwnd);                           PGM_NAME,
473              free_gnupg_table ();                           0, 0, 0, 0, 0,
474              return 0;                           NULL,
475          }                           NULL,
476          update_keycache (hwnd);                           hinst,
477          check_crypto_engine ();                           NULL);
478      }      if (hwnd == NULL) {
479      else {          msg_box (NULL, _("Could not create window"), _("WinPT Error"), MB_ERR);
480          gpgme_keycache_t c;          free_gnupg_table ();
481          update_keycache (hwnd);          return 0;
482          c = keycache_get_ctx (1);      }
483          if (!c || !gpgme_keycache_count (c)) {      glob_hwnd = hwnd;
484              gnupg_display_error ();      UpdateWindow (hwnd);
485              msg_box (hwnd, _("The keycache was not initialized or is empty.\n"  
486                               "Please check your GPG config (keyrings, pathes...)"),      if (!first_start && !start_gpgprefs) {
487                               _("WinPT Error"), MB_ERR);          gnupg_backup_options ();        
488              ec = msg_box (NULL, _("It seems that GPG is not set properly.\n"          rc = check_crypto_engine ();
489                                    "Do you want to start the GPG preferences dialog?"),          if (rc) {
490                              "WinPT", MB_INFO|MB_YESNO);              DestroyWindow (hwnd);
491              if (ec == IDYES) {              free_gnupg_table ();
492                  DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,              return 0;
493                                  gpgprefs_dlg_proc, NULL);          }
494                  update_keycache (hwnd);      }
495              }      
496              else {      if (start_gpgprefs) {
497                  DestroyWindow (hwnd);          char *ring;
498                  free_gnupg_table ();          DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,
499                  return 0;                          gpgprefs_dlg_proc, 0);
500              }          ring = get_gnupg_keyring (0, !NO_STRICT);
501          }          if (gnupg_access_keyring (0) == -1 && get_file_size (ring) == 0)
502          if (check_default_key (c)) {              first_start = 1; /* The keyring is empty! */
503              char * p = get_gnupg_default_key ();          free_if_alloc (ring);
504              log_box (_("WinPT Error"), MB_ERR,      }
505                       _("Default key from the GPG options file could not be found.\n"  
506                         "Please check your gpg.conf (options) to correct this:\n\n"      if (first_start) {
507                         "%s: public key not found."), p? p : "[null]");          struct first_start_s fs;
508              free_if_alloc (p);          struct genkey_s c;
509              DestroyWindow (hwnd);          HWND h;
510              free_gnupg_table ();  start:
511              return 0;          h = GetDesktopWindow ();
512          }          DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, h,
513          if (count_insecure_elgkeys ())                              gpgprefs_dlg_proc, 0);
514              DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_ELGWARN, glob_hwnd,          DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_FIRST, h,
515                              elgamal_warn_dlg_proc, NULL);                          first_run_dlg_proc, (LPARAM)&fs);
516      }          switch (fs.choice) {
517            case SETUP_KEYGEN:
518      accel_tab = LoadAccelerators (glob_hinst, (LPCTSTR)IDR_WINPT_ACCELERATOR);              c.interactive = 1;
519      keyring_check_last_access (); /* init */              c.first_start = 1;
520      while (GetMessage (&msg, hwnd, 0, 0)) {              rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYWIZARD,
521          if (!TranslateAccelerator (msg.hwnd, accel_tab, &msg)) {                                   h, keygen_wizard_dlg_proc, (LPARAM)&c);
522              TranslateMessage (&msg);              if (!rc)
523              DispatchMessage (&msg);                  goto start;
524          }              break;
525      }  
526                    case SETUP_IMPORT:
527      return 0;              rc = gnupg_copy_keyrings ();
528  } /* WinMain */              if (rc) {
529                    msg_box (hwnd, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
530                    goto start;
531                }
532                break;
533    
534            case -1:
535                DestroyWindow (hwnd);
536                free_gnupg_table ();
537                return 0;
538            }
539            update_keycache (hwnd);
540            check_crypto_engine ();
541        }
542        else {
543            gpg_keycache_t c;
544            update_keycache (hwnd);
545            c = keycache_get_ctx (1);
546            if (!c || !gpg_keycache_get_size (c)) {
547                gnupg_display_error ();
548                msg_box (hwnd, _("The keycache was not initialized or is empty.\n"
549                                 "Please check your GPG config (keyrings, pathes...)"),
550                                 _("WinPT Error"), MB_ERR);
551                ec = msg_box (NULL, _("It seems that GPG is not set properly.\n"
552                                      "Do you want to start the GPG preferences dialog?"),
553                                "WinPT", MB_INFO|MB_YESNO);
554                if (ec == IDYES) {
555                    DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,
556                                    gpgprefs_dlg_proc, 0);
557                    update_keycache (hwnd);
558                }
559                else {
560                    DestroyWindow (hwnd);
561                    free_gnupg_table ();
562                    return 0;
563                }
564            }
565            if (check_default_key (c)) {
566                char *p = get_gnupg_default_key ();
567                log_box (_("WinPT Error"), MB_ERR,
568                         _("Default key from the GPG options file could not be found.\n"
569                           "Please check your gpg.conf (options) to correct this:\n\n"
570                           "%s: public key not found."), p? p : "[null]");
571                free_if_alloc (p);
572                DestroyWindow (hwnd);
573                free_gnupg_table ();
574                return 0;
575            }
576            if (count_insecure_elgkeys ())
577                DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_ELGWARN, glob_hwnd,
578                                elgamal_warn_dlg_proc, 0);
579        }
580    
581        if (start_manager)
582            PostMessage (hwnd, WM_COMMAND, start_manager, 0);
583    
584        accel_tab = LoadAccelerators (glob_hinst, (LPCTSTR)IDR_WINPT_ACCELERATOR);
585        keyring_check_last_access (); /* init */
586        while (GetMessage (&msg, hwnd, 0, 0)) {
587            if (!TranslateAccelerator (msg.hwnd, accel_tab, &msg)) {
588                TranslateMessage (&msg);
589                DispatchMessage (&msg);
590            }
591        }
592            
593        return 0;
594    }

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