/[winpt]/trunk/Src/WinPT.cpp
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revision 12 by twoaday, Thu Apr 14 12:56:25 2005 UTC revision 102 by twoaday, Tue Nov 29 08:56:21 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."), _("WinPT Error"), MB_ERR);
131          while (j--) {      free_if_alloc (defkey);
132              if (currdir[j] == '\\')      return err? -1 : 0;
133                  break;            }
134          }  
135          currdir[j] = 0;  
136          _snprintf (program, DIM (program)-1, "%s\\%s", currdir + 1, fname);  /* Return the WinPT program file name (with full pathname). */
137      }  static const char *
138      return program;  get_prog_part (const char * fname, int use_cwd)
139  } /* get_prog_part */  {
140        static char program[512];
141        char currdir[256];
142  static int      char *cmd = NULL;
143  check_crypto_engine (void)      int j;
144  {          
145      int ma=1, mi=2, pa=4; /* GPG 1.2.4 */      memset (currdir, 0, DIM (currdir));
146      int rc;      memset (program, 0, DIM (program));
147            
148      rc = check_gnupg_engine (&ma, &mi, &pa);      if (use_cwd) {
149      if (rc == -1) {          GetCurrentDirectory (DIM (currdir)-1, currdir);
150          msg_box (NULL, _("Could not read GnuPG version."), _("WinPT Error"), MB_ERR);          _snprintf (program, DIM (program)-1, "%s\\%s", currdir, fname);
151          return rc;      }
152      }      else {
153      else if (rc) {          cmd = GetCommandLine ();
154          log_box (_("WinPT Error"), MB_ERR,          if (cmd == NULL)
155                   _("Sorry, you need a newer GPG version.\n"              return NULL;
156                     "GPG version %d.%d.%d requred GPG version 1.2.4"),          strncpy (currdir, cmd, sizeof (currdir)-1);
157                     ma, mi, pa);          j = strlen (currdir);
158          return rc;          while (j--) {
159      }              if (currdir[j] == '\\')
160      /* We enable smartcard support for GPG: 1.9.x or >= 1.4.0 */                  break;
161      if (ma >= 1 && mi >= 4)          }
162          scard_support = 1;          currdir[j] = 0;
163            _snprintf (program, DIM (program)-1, "%s\\%s", currdir + 1, fname);
164      gpgver[0] = ma;      }
165      gpgver[1] = mi;      return program;
166      gpgver[2] = pa;  }
167      return rc;  
168  } /* check_crypto_engine */  
169    /* Check that the underlying crypto engine fullfills the minimal
170       requirements so all commands work properly. */
171  static int  static int
172  load_keyserver_conf (int quiet)  check_crypto_engine (void)
173  {  {
174      const char * t;      int ma=1, mi=4, pa=2; /* GPG 1.4.2 */
175      int rc;      int rc;
176    
177      if (reg_prefs.kserv_conf)      rc = check_gnupg_engine (&ma, &mi, &pa);
178          t = reg_prefs.kserv_conf;      if (rc == -1) {
179      else if (!file_exist_check (get_prog_part ("keyserver.conf", 0)))          msg_box (NULL, _("Could not read GnuPG version."),
180          t = get_prog_part ("keyserver.conf", 0);                   _("WinPT Error"), MB_ERR);
181      else          return rc;
182          t = "keyserver.conf";      }
183      rc = kserver_load_conf (t);      else if (rc) {
184      if (rc && !quiet)          log_box (_("WinPT Error"), MB_ERR,
185          msg_box (NULL, winpt_strerror (rc), _("Keyserver"), MB_ERR);                   _("Sorry, you need a newer GPG version.\n"
186      return rc;                     "GPG version %d.%d.%d required GPG version "MIN_GPG_VER),
187  }                     ma, mi, pa);
188            return rc;
189        }
190  static void      /* We enable smartcard support for GPG: >= 2 or >= 1.4.3 */
191  enable_mobile_mode (void)      if (ma > 1 || pa >= 3)
192  {          scard_support = 1;
193      memset (&reg_prefs, 0, sizeof (reg_prefs));  
194      reg_prefs.always_trust = 0;      gpgver[0] = ma;
195      reg_prefs.auto_backup = 0;      gpgver[1] = mi;
196      reg_prefs.cache_time = 0;      gpgver[2] = pa;
197      reg_prefs.expert = 0;      return rc;
198      reg_prefs.keylist_mode = 1;  }
199      reg_prefs.kserv_conf = m_strdup ("keyserver.conf");  
200      reg_prefs.no_zip_mmedia = 1;  
201      reg_prefs.use_tmpfiles = 1;  /* Try to load the keyserver config file. If @quiet is 1
202      reg_prefs.word_wrap = 80;     do not show any errors. */
203      reg_prefs.use_viewer = 0; /* XXX */  static int
204  }  load_keyserver_conf (int quiet)
205    {
206  char* get_subkey_fingerprint (gpgme_ctx_t ctx, const char *keyid);      const char * t;
207        int rc;
208  int WINAPI  
209  WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)      if (reg_prefs.kserv_conf)
210  {          t = reg_prefs.kserv_conf;
211      WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};      else if (!file_exist_check (get_prog_part ("keyserver.conf", 0)))
212      HACCEL accel_tab;          t = get_prog_part ("keyserver.conf", 0);
213      int rc, ec, created = 0, use_cwd = 0, nfiles = 0;      else
214      int first_start = 0, start_gpgprefs = 0;          t = "keyserver.conf";
215      const char * s;      rc = kserver_load_conf (t);
216      MSG msg;      if (rc && !quiet)
217      HWND hwnd;          msg_box (NULL, winpt_strerror (rc), _("Keyserver"), MB_ERR);
218        return rc;
219      glob_hinst = hinst;  }
220        
221      gpgme_lib_init ();  
222      #ifdef _DEBUG  /* Enable the mobility mode. */
223      gpgme_set_debug_mode (1);  static void
224      #endif  enable_mobile_mode (void)
225      gpgme_set_pgm_string ("WinPT "PGM_VERSION);  {
226        memset (&reg_prefs, 0, sizeof (reg_prefs));
227      s = PTD_get_version ();      reg_prefs.always_trust = 0;
228      if (strcmp (s, "0.8.0")) {      reg_prefs.auto_backup = 0;
229          log_box (_("Privacy Tray Dynamic (PTD)"), MB_ERR,      reg_prefs.cache_time = 0;
230                   _("Please update your PTD.dll to the newest version, "      reg_prefs.expert = 0;
231                     "the version (%s) you use is too old."), s);      reg_prefs.keylist_mode = 1;
232          return 0;      reg_prefs.kserv_conf = m_strdup ("keyserver.conf");
233      }      reg_prefs.no_zip_mmedia = 1;
234        reg_prefs.use_tmpfiles = 1;
235      if (gpg_md_selftest ()) {      reg_prefs.word_wrap = 80;
236          msg_box (NULL, _("Cryptographic selftest failed."),      reg_prefs.use_viewer = 0; /* XXX */
237                   _("WinPT Error"), MB_ERR);  }
238          return 0;  
239      }  char* multi_gnupg_path (void);
240    
241      if (cmdline && stristr (cmdline, "--mobile"))  const char * fm_get_file_type (const char *fname, int *r_type);
242          mobile = 1;  
243    /* Main entry point. */
244      set_default_kserver ();  int WINAPI
245    WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)
246      if (!mobile) {  {
247          regist_inst_gnupg (1);      WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};
248          regist_inst_winpt (1, &created);      HACCEL accel_tab;
249      }      int rc, ec, created = 0, nfiles = 0;
250      else {      int first_start = 0, start_gpgprefs = 0;
251          enable_mobile_mode ();      int winpt_inst_found = 0;
252          /* XXX: ask for GPG path */      const char *s;
253          created = 1; /* Disable registry writing */      MSG msg;
254      }      HWND hwnd = NULL;
255    
256      if (!created) {      glob_hinst = hinst;
257          memset (&reg_prefs, 0, sizeof (reg_prefs));  
258          reg_prefs.use_tmpfiles = 1; /* default */      if (cmdline && stristr (cmdline, "--stop")) {
259          reg_prefs.fm.progress = 0; /* XXX: fix the bug and enable it again */          hwnd = FindWindow ("WinPT", "WinPT");
260          get_reg_winpt_prefs (&reg_prefs);          if (hwnd != NULL)
261          if (!reg_prefs.no_hotkeys)              PostMessage (hwnd, WM_DESTROY, 0, 0);
262              hotkeys_modify ();          return 0;
263      }      }
264        
265      rc = gnupg_check_homedir ();  #ifdef _DEBUG
266      if (rc) {      gpg_set_debug_mode (1);
267          log_box (_("WinPT Error"), MB_ERR,      debug = 1;
268                   _("GPG home directory is not set correctly.\n"  #endif
269                     "Please check the GPG registry settings:\n%s."),  
270                   winpt_strerror (rc));      if (gpg_md_selftest ()) {
271          const char * s = get_filename_dlg (GetActiveWindow (), FILE_OPEN,          msg_box (NULL, _("Cryptographic selftest failed."),
272                                             _("Select GPG Public Keyring"),                   _("WinPT Error"), MB_ERR);
273                                             _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),          return 0;
274                                             NULL);      }
275          if (s && !file_exist_check (s))  
276          {      s = gpgme_check_version (MIN_GPGME_VER);
277              size_t n;      if (!s || !*s) {
278              char * p = strrchr (s, '\\');          msg_box (NULL, _("A newer GPGME version is needed; at least "MIN_GPGME_VER),
279              if (!p)                   _("WinPT Error"), MB_ERR);
280                  BUG (0);          return 0;
281              n = p - s;      }
282              if (n)  
283              {      CreateMutex (NULL, TRUE, PGM_NAME);
284                  char * file = new char[n+1];      if (GetLastError () == ERROR_ALREADY_EXISTS)
285                  if (!file)          winpt_inst_found = 1;
286                      BUG (NULL);  
287                  memset (file, 0, n);      if (cmdline && stristr (cmdline, "--mobile")) {
288                  memcpy (file, s, n);          msg_box (NULL, "WARNING: mobile modus is not fully implemented yet!",
289                  file[n] = '\0';                           "WinPT", MB_INFO);
290                  set_reg_entry_gpg ("HomeDir", file);          mobile = 1;
291                  free_if_alloc (file);      }
292                  gnupg_check_homedir (); /* change gpgProgram if needed */  
293              }      set_default_kserver ();
294          }  
295          else {      if (!mobile) {
296              msg_box (NULL, _("GPG home directory could not be determited."),          regist_inst_gnupg (1);
297                       _("WinPT Error"), MB_ERR);          regist_inst_winpt (1, &created);
298              goto start;      }
299          }      else {
300      }          enable_mobile_mode ();
301            /* XXX: ask for GPG path */
302      rc = check_gnupg_prog ();          created = 1; /* Disable registry writing */
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 "      if (!created) {
306                               "correct  this problem?"), _("WinPT Error"),          memset (&reg_prefs, 0, sizeof (reg_prefs));
307                               MB_INFO|MB_YESNO) == IDYES)          reg_prefs.use_tmpfiles = 1; /* default */
308              start_gpgprefs = 1;          reg_prefs.fm.progress = 0; /* XXX: fix the bug and enable it again */
309          else          get_reg_winpt_prefs (&reg_prefs);
310          {          if (!reg_prefs.no_hotkeys)
311              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);              hotkeys_modify ();
312              return 0;          gnupg_load_config ();
313          }      }
314      }  
315        rc = gnupg_check_homedir ();
316      rc = gnupg_access_files ();      if (rc) {
317      if (!start_gpgprefs && rc)          log_box (_("WinPT Error"), MB_ERR,
318      {                   _("GPG home directory is not set correctly.\n"
319          if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS)                     "Please check the GPG registry settings:\n%s."),
320          {                   winpt_strerror (rc));
321              ec = msg_box (NULL,          s = get_fileopen_dlg (GetActiveWindow (),
322                  _("Could not access and/or find the public and secret keyring.\n"                                _("Select GPG Public Keyring"),
323                    "If this is an accident, quit the program and fix it.\n\n"                                _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),
324                    "Continue if you want that WinPT offers you more choices.\n"),                                NULL);
325                    "WinPT", MB_INFO|MB_YESNO);          if (s != NULL) {
326              if (ec == IDYES)              size_t n;
327                  first_start = 1;              char * p = strrchr (s, '\\');
328          }              if (!p)
329          if (!first_start)                  BUG (0);
330          {              n = p - s;
331              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);              if (n) {
332              return 0;                  char * file = new char[n+1];
333          }                  if (!file)
334      }                      BUG (NULL);
335                    memset (file, 0, n);
336      if (!first_start)                  memcpy (file, s, n);
337      {                  file[n] = '\0';        
338          rc = gpg_check_permissions (1);                  set_reg_entry_gpg ("HomeDir", file);
339          if (rc && rc == 2)                  free_if_alloc (file);
340              gpg_read_only = 1;                  gnupg_check_homedir (); /* change gpgProgram if needed */
341          else if (rc)              }
342              return 0;          }
343      }          else {
344                msg_box (NULL, _("GPG home directory could not be determited."),
345      load_gettext ();                       _("WinPT Error"), MB_ERR);
346      init_gnupg_table ();              goto start;
347            }
348      nfiles = fm_parse_command_line (cmdline);      }
349      if (nfiles > 0)  
350          return 0;      rc = check_gnupg_prog ();
351        if (rc) {
352      if (cmdline && stristr (cmdline, "--wipe-freespace")) {          if (msg_box (NULL, _("Could not find the GPG binary (gpg.exe).\n"
353          dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_SPACE_SECDEL,                               "Do you want to start the GPG preferences to "
354                              GetDesktopWindow(), space_wipefrees_dlg_proc, NULL,                               "correct  this problem?"), _("WinPT Error"),
355                              _("Wipe Free Space"), IDS_WINPT_SPACE_SECDEL);                               MB_INFO|MB_YESNO) == IDYES)
356          free_gnupg_table ();              start_gpgprefs = 1;
357          return 0;          else
358      }          {
359                msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
360      load_keyserver_conf (cmdline? 1 : 0);              return 0;
361      if (cmdline && (stristr (cmdline, "--keymanager")          }
362                  || stristr (cmdline, "--cardmanager"))) {      }
363          update_keycache (GetDesktopWindow ());  
364          if (stristr (cmdline, "keymanager"))      rc = gnupg_access_files ();
365              dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_KEYMISC,      if (!start_gpgprefs && rc) {
366                              GetDesktopWindow(), keymanager_dlg_proc, NULL,          if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS) {
367                              _("Key Manager"), IDS_WINPT_KEYMISC);              ec = msg_box (NULL,
368          else {                  _("Could not access and/or find the public and secret keyring.\n"
369              gpgme_card_t crd = smartcard_init ();                    "If this is an accident, quit the program and fix it.\n\n"
370              if (crd)                    "Continue if you want that WinPT offers you more choices.\n"),
371                  dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_CARD_EDIT,                    "WinPT", MB_INFO|MB_YESNO);
372                                    GetDesktopWindow(), card_edit_dlg_proc,              if (ec == IDYES)
373                                    (LPARAM)crd, _("Card Manager"),                  first_start = 1;
374                                    IDS_WINPT_CARD_EDIT);          }
375              gpgme_card_release (crd);          if (!first_start) {
376          }              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
377          keycache_release ();              return 0;
378          free_gnupg_table ();          }
379          return 0;      }
380      }  
381        if (!first_start) {
382      CreateMutex (NULL, TRUE, PGM_NAME);          rc = gpg_check_permissions (1);
383      if (GetLastError () == ERROR_ALREADY_EXISTS) {          if (rc && rc == 2)
384          free_gnupg_table ();              gpg_read_only = 1;
385          return 0;          else if (rc)
386      }              return 0;
387        }
388      if (cmdline) {  
389          if (stristr (cmdline, "--enable-debug") || stristr (cmdline, "--debug")) {      load_gettext (winpt_inst_found);
390              gpgme_set_debug_mode (1);      init_gnupg_table ();
391              winpt_debug_msg ();  
392              debug = 1;      nfiles = fm_parse_command_line (cmdline);
393          }      if (nfiles > 0) {
394      }          free_gnupg_table ();
395            return 0;
396      wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));      }
397      rc = RegisterClass (&wc);  
398      if (rc == FALSE) {      if (cmdline && stristr (cmdline, "--wipe-freespace")) {
399          msg_box (NULL, _("Could not register window class"), _("WinPT Error"), MB_ERR);          dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_SPACE_SECDEL,
400          free_gnupg_table ();                              GetDesktopWindow(), space_wipefrees_dlg_proc, 0,
401          return 0;                              _("Wipe Free Space"), IDS_WINPT_SPACE_SECDEL);
402      }          free_gnupg_table ();
403            return 0;
404      hwnd = CreateWindow (PGM_NAME,      }
405                           PGM_NAME,  
406                           0, 0, 0, 0, 0,      load_keyserver_conf (cmdline? 1 : 0);
407                           NULL,  
408                           NULL,      if (cmdline && (stristr (cmdline, "--keymanager")
409                           hinst,                  || stristr (cmdline, "--cardmanager"))) {
410                           NULL);          /* If an instance of WinPT is running, just send the command
411      if (hwnd == NULL) {             to open the key manager. Otherwise start a new instance.
412          msg_box (NULL, _("Could not create window"), _("WinPT Error"), MB_ERR);           */
413          free_gnupg_table ();          HWND tray = FindWindow ("WinPT", "WinPT");
414          return 0;          if (tray != NULL) {
415      }              PostMessage (tray, WM_COMMAND, ID_WINPT_KEY, 0);
416      glob_hwnd = hwnd;              free_gnupg_table ();
417      UpdateWindow (hwnd);              return 0;
418            }
419      if (!first_start && !start_gpgprefs) {          update_keycache (GetDesktopWindow ());
420          gnupg_backup_options (1);          if (stristr (cmdline, "keymanager"))
421          gnupg_backup_options (0);              dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_KEYMISC,
422                                        GetDesktopWindow(), keymanager_dlg_proc, 0,
423          rc = check_crypto_engine ();                              _("Key Manager"), IDS_WINPT_KEYMISC);  
424          if (rc) {          else {
425              DestroyWindow (hwnd);              gpg_card_t crd = gpg_card_load ();
426              free_gnupg_table ();              if (crd)
427              return 0;                  dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_CARD_EDIT,
428          }                                    GetDesktopWindow(), card_edit_dlg_proc,
429      }                                    (LPARAM)crd, _("Card Manager"),
430                                      IDS_WINPT_CARD_EDIT);
431      if (start_gpgprefs)              gpg_card_release (crd);
432      {          }
433          char *ring;          /*
434          size_t size = 0;          keycache_release (0);
435          DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,          free_gnupg_table ();
436                          gpgprefs_dlg_proc, NULL);          return 0;
437          ring = get_gnupg_keyring (0, !NO_STRICT);          */
438          if (gnupg_access_keyring (0) == -1 && get_file_size (ring) == 0)      }
439              first_start = 1; /* The keyring is empty! */  
440          free_if_alloc (ring);      /* If we found another WinPT instance, just quit to avoid it
441      }         will be executed twice. */
442        if (winpt_inst_found) {
443      if (first_start) {          log_debug ("%s", "WinMain: WinPT is already running.");
444          struct key_wizard_s c, dummy;          free_gnupg_table ();
445  start:          return 0;
446          DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_FIRST, hwnd,      }
447                          first_run_dlg_proc, (LPARAM)&dummy);  
448          switch (dummy.interactive)      if (cmdline) {
449          {          if (stristr (cmdline, "--enable-debug") || stristr (cmdline, "--debug")) {
450          case SETUP_KEYGEN:              gpg_set_debug_mode (1);
451              c.interactive = 1;              winpt_debug_msg ();
452              rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYWIZARD,              debug = 1;
453                                   hwnd, keygen_wizard_dlg_proc, (LPARAM)&c);          }
454              if (!rc)      }
455                  goto start;  
456              break;      wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));
457        rc = RegisterClass (&wc);
458          case SETUP_IMPORT:      if (rc == FALSE) {
459              rc = gnupg_copy_keyrings ();          msg_box (NULL, _("Could not register window class"),
460              if (rc) {                   _("WinPT Error"), MB_ERR);
461                  msg_box (hwnd, winpt_strerror (rc), _("WinPT Error"), MB_ERR);          free_gnupg_table ();
462                  goto start;          return 0;
463              }      }
464              break;  
465        hwnd = CreateWindow (PGM_NAME,
466          case SETUP_EXISTING:                           PGM_NAME,
467              DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,                           0, 0, 0, 0, 0,
468                              gpgprefs_dlg_proc, NULL);                           NULL,
469              break;                           NULL,
470                             hinst,
471          case -1:                           NULL);
472              DestroyWindow (hwnd);      if (hwnd == NULL) {
473              free_gnupg_table ();          msg_box (NULL, _("Could not create window"), _("WinPT Error"), MB_ERR);
474              return 0;          free_gnupg_table ();
475          }          return 0;
476          update_keycache (hwnd);      }
477          check_crypto_engine ();      glob_hwnd = hwnd;
478      }      UpdateWindow (hwnd);
479      else {  
480          gpgme_keycache_t c;      if (!first_start && !start_gpgprefs) {
481          update_keycache (hwnd);          gnupg_backup_options ();        
482          c = keycache_get_ctx (1);          rc = check_crypto_engine ();
483          if (!c || !gpgme_keycache_count (c)) {          if (rc) {
484              gnupg_display_error ();              DestroyWindow (hwnd);
485              msg_box (hwnd, _("The keycache was not initialized or is empty.\n"              free_gnupg_table ();
486                               "Please check your GPG config (keyrings, pathes...)"),              return 0;
487                               _("WinPT Error"), MB_ERR);          }
488              ec = msg_box (NULL, _("It seems that GPG is not set properly.\n"      }
489                                    "Do you want to start the GPG preferences dialog?"),      
490                              "WinPT", MB_INFO|MB_YESNO);      if (start_gpgprefs) {
491              if (ec == IDYES) {          char *ring;
492                  DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,  
493                                  gpgprefs_dlg_proc, NULL);          DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,
494                  update_keycache (hwnd);                          gpgprefs_dlg_proc, 0);
495              }          ring = get_gnupg_keyring (0, !NO_STRICT);
496              else {          if (gnupg_access_keyring (0) == -1 && get_file_size (ring) == 0)
497                  DestroyWindow (hwnd);              first_start = 1; /* The keyring is empty! */
498                  free_gnupg_table ();          free_if_alloc (ring);
499                  return 0;      }
500              }  
501          }      if (first_start) {
502          if (check_default_key (c)) {          struct first_start_s fs;
503              char * p = get_gnupg_default_key ();          struct genkey_s c;
504              log_box (_("WinPT Error"), MB_ERR,          HWND h;
505                       _("Default key from the GPG options file could not be found.\n"  start:
506                         "Please check your gpg.conf (options) to correct this:\n\n"          h = GetDesktopWindow ();
507                         "%s: public key not found."), p? p : "[null]");          DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, h,
508              free_if_alloc (p);                              gpgprefs_dlg_proc, 0);
509              DestroyWindow (hwnd);          DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_FIRST, h,
510              free_gnupg_table ();                          first_run_dlg_proc, (LPARAM)&fs);
511              return 0;          switch (fs.choice) {
512          }          case SETUP_KEYGEN:
513          if (count_insecure_elgkeys ())              c.interactive = 1;
514              DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_ELGWARN, glob_hwnd,              c.first_start = 1;
515                              elgamal_warn_dlg_proc, NULL);              rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYWIZARD,
516      }                                   h, keygen_wizard_dlg_proc, (LPARAM)&c);
517                if (!rc)
518      accel_tab = LoadAccelerators (glob_hinst, (LPCTSTR)IDR_WINPT_ACCELERATOR);                  goto start;
519      keyring_check_last_access (); /* init */              break;
520      while (GetMessage (&msg, hwnd, 0, 0)) {  
521          if (!TranslateAccelerator (msg.hwnd, accel_tab, &msg)) {          case SETUP_IMPORT:
522              TranslateMessage (&msg);              rc = gnupg_copy_keyrings ();
523              DispatchMessage (&msg);              if (rc) {
524          }                  msg_box (hwnd, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
525      }                  goto start;
526                        }
527      return 0;              break;
528  } /* WinMain */  
529            case -1:
530                DestroyWindow (hwnd);
531                free_gnupg_table ();
532                return 0;
533            }
534            update_keycache (hwnd);
535            check_crypto_engine ();
536        }
537        else {
538            gpg_keycache_t c;
539            update_keycache (hwnd);
540            c = keycache_get_ctx (1);
541            if (!c || !gpg_keycache_get_size (c)) {
542                gnupg_display_error ();
543                msg_box (hwnd, _("The keycache was not initialized or is empty.\n"
544                                 "Please check your GPG config (keyrings, pathes...)"),
545                                 _("WinPT Error"), MB_ERR);
546                ec = msg_box (NULL, _("It seems that GPG is not set properly.\n"
547                                      "Do you want to start the GPG preferences dialog?"),
548                                "WinPT", MB_INFO|MB_YESNO);
549                if (ec == IDYES) {
550                    DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,
551                                    gpgprefs_dlg_proc, 0);
552                    update_keycache (hwnd);
553                }
554                else {
555                    DestroyWindow (hwnd);
556                    free_gnupg_table ();
557                    return 0;
558                }
559            }
560            if (check_default_key (c)) {
561                char * p = get_gnupg_default_key ();
562                log_box (_("WinPT Error"), MB_ERR,
563                         _("Default key from the GPG options file could not be found.\n"
564                           "Please check your gpg.conf (options) to correct this:\n\n"
565                           "%s: public key not found."), p? p : "[null]");
566                free_if_alloc (p);
567                DestroyWindow (hwnd);
568                free_gnupg_table ();
569                return 0;
570            }
571            if (count_insecure_elgkeys ())
572                DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_ELGWARN, glob_hwnd,
573                                elgamal_warn_dlg_proc, 0);
574        }
575    
576        accel_tab = LoadAccelerators (glob_hinst, (LPCTSTR)IDR_WINPT_ACCELERATOR);
577        keyring_check_last_access (); /* init */
578        while (GetMessage (&msg, hwnd, 0, 0)) {
579            if (!TranslateAccelerator (msg.hwnd, accel_tab, &msg)) {
580                TranslateMessage (&msg);
581                DispatchMessage (&msg);
582            }
583        }
584            
585        return 0;
586    }
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