/[winpt]/trunk/Src/WinPT.cpp
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revision 6 by twoaday, Mon Apr 4 06:59:24 2005 UTC revision 128 by twoaday, Mon Dec 19 13:05:59 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            /* Load the GPG environment. On the first start, some
118      memset (currdir, 0, DIM (currdir));     checks are performed to find out in what state GPG is.
119      memset (program, 0, DIM (program));     Return value: 0  everything OK.
120                             >0  fatal error.
121      if (use_cwd) {                   -1 public keyring is empty or does not exist. */
122          GetCurrentDirectory (DIM (currdir)-1, currdir);  static int
123          _snprintf (program, DIM (program)-1, "%s\\%s", currdir, fname);  load_gpg_env (void)
124      }  {
125      else {      SECURITY_ATTRIBUTES sec_attr;
126          cmd = GetCommandLine ();      char *p;
127          if (cmd == NULL)      char *pkr;
128              return NULL;  
129          strncpy (currdir, cmd, 255);      p = get_reg_entry_gpg4win ("gpg.exe");
130          j = strlen (currdir);      if (!p)
131          while (j--) {          return (1);
132              if (currdir[j] == '\\')      if (file_exist_check (p)) {
133                  break;                    free_if_alloc (p);
134          }          return (1);
135          currdir[j] = 0;      }
136          _snprintf (program, DIM (program)-1, "%s\\%s", currdir + 1, fname);      free_if_alloc (p);
137      }      p = multi_gnupg_path (0);
138      return program;      if (p && dir_exist_check (p)) {
139  } /* get_prog_part */          memset (&sec_attr, 0, sizeof (sec_attr));
140            sec_attr.nLength = sizeof (sec_attr);
141            if (!CreateDirectory (p, &sec_attr)) {
142  static int              msg_box (NULL, _("Could not create GPG home directory"),
143  check_crypto_engine (void)                       _("WinPT Error"), MB_ERR);
144  {              free_if_alloc (p);
145      int ma=1, mi=2, pa=4; /* GPG 1.2.4 */              return (2);
146      int rc;          }
147        }
148      rc = check_gnupg_engine (&ma, &mi, &pa);      pkr = make_filename (p, "pubring", "gpg");
149      if (rc == -1) {      free_if_alloc (p);
150          msg_box (NULL, _("Could not read GnuPG version."), _("WinPT Error"), MB_ERR);      if (!pkr)
151          return rc;          return -1;
152      }      if (get_file_size (pkr) == 0) {
153      else if (rc) {          free_if_alloc (pkr);
154          log_box (_("WinPT Error"), MB_ERR,          return -1;
155                   _("Sorry, you need a newer GPG version.\n"      }
156                     "GPG version %d.%d.%d requred GPG version 1.2.4"),      return 0;
157                     ma, mi, pa);  }
158          return rc;  
159      }  /* check if the default key from the gpg.conf file is available in the
160      /* We enable smartcard support for GPG: 1.9.x or >= 1.4.0 */     keyring. if not, bail out because encryption won't work properly then. */
161      if (ma > 1 || mi >= 9 || mi >= 4)  static int
162          scard_support = 1;  check_default_key (gpg_keycache_t kc)
163    {
164      gpgver[0] = ma;      gpgme_key_t key;
165      gpgver[1] = mi;      gpgme_error_t err = GPG_ERR_NO_ERROR;
166      gpgver[2] = pa;      char *defkey;
167      return rc;  
168  } /* check_crypto_engine */      defkey = get_gnupg_default_key ();
169        if (defkey)
170            err = gpg_keycache_find_key (kc, defkey, 0, &key);
171  static int      else
172  load_keyserver_conf (int quiet)          msg_box (NULL, _("No useable secret key found."),
173  {                   _("WinPT Error"), MB_ERR);
174      const char * t;      free_if_alloc (defkey);
175      int rc;      return err? -1 : 0;
176    }
177      if (reg_prefs.kserv_conf)  
178          t = reg_prefs.kserv_conf;  
179      else if (!file_exist_check (get_prog_part ("keyserver.conf", 0)))  /* Return the WinPT program file name (with full pathname). */
180          t = get_prog_part ("keyserver.conf", 0);  static const char*
181      else  get_prog_part (const char * fname, int use_cwd)
182          t = "keyserver.conf";  {
183      rc = kserver_load_conf (t);      static char program[512];
184      if (rc && !quiet)      char currdir[256];
185          msg_box (NULL, winpt_strerror (rc), _("Keyserver"), MB_ERR);      char *cmd = NULL;
186      return rc;      int j;
187  }          
188        memset (currdir, 0, DIM (currdir));
189        memset (program, 0, DIM (program));
190  static void          
191  enable_mobile_mode (void)      if (use_cwd) {
192  {          GetCurrentDirectory (DIM (currdir)-1, currdir);
193      memset (&reg_prefs, 0, sizeof (reg_prefs));          _snprintf (program, DIM (program)-1, "%s\\%s", currdir, fname);
194      reg_prefs.always_trust = 0;      }
195      reg_prefs.auto_backup = 0;      else {
196      reg_prefs.cache_time = 0;          cmd = GetCommandLine ();
197      reg_prefs.expert = 0;          if (cmd == NULL)
198      reg_prefs.keylist_mode = 1;              return NULL;
199      reg_prefs.kserv_conf = m_strdup ("keyserver.conf");          strncpy (currdir, cmd, sizeof (currdir)-1);
200      reg_prefs.no_zip_mmedia = 1;          j = strlen (currdir);
201      reg_prefs.use_tmpfiles = 1;          while (j--) {
202      reg_prefs.word_wrap = 80;              if (currdir[j] == '\\')
203      reg_prefs.use_viewer = 0; /* XXX */                  break;
204  }          }
205            currdir[j] = 0;
206            _snprintf (program, DIM (program)-1, "%s\\%s", currdir + 1, fname);
207  int WINAPI      }
208  WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)      return program;
209  {  }
210      WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};  
211      HACCEL accel_tab;  
212      int rc, ec, created = 0, use_cwd = 0, nfiles = 0;  /* Check that the underlying crypto engine fullfills the minimal
213      int first_start = 0, start_gpgprefs = 0;     requirements so all commands work properly. */
214      const char * s;  static bool
215      MSG msg;  check_crypto_engine (void)
216      HWND hwnd;  {
217        int ma=1, mi=4, pa=2; /* GPG 1.4.2 */
218      glob_hinst = hinst;      int rc;
219        
220      gpgme_lib_init ();      rc = check_gnupg_engine (&ma, &mi, &pa);
221      #ifdef _DEBUG      if (rc == -1) {
222      gpgme_set_debug_mode (1);          msg_box (NULL, _("Could not read GnuPG version."),
223      #endif                   _("WinPT Error"), MB_ERR);
224      gpgme_set_pgm_string ("WinPT "PGM_VERSION);          return false;
225        }
226      s = PTD_get_version ();      else if (rc) {
227      if (strcmp (s, "0.8.0")) {          log_box (_("WinPT Error"), MB_ERR,
228          log_box (_("Privacy Tray Dynamic (PTD)"), MB_ERR,                   _("Sorry, you need a newer GPG version.\n"
229                   _("Please update your PTD.dll to the newest version, "                     "GPG version %d.%d.%d required GPG version "MIN_GPG_VER),
230                     "the version (%s) you use is too old."), s);                     ma, mi, pa);
231          return 0;          return false;
232      }      }
233        /* We enable smartcard support for GPG: >= 2 or >= 1.4.3 */
234      if (gpg_md_selftest ()) {      if (ma > 1 || pa >= 3)    
235          msg_box (NULL, _("Cryptographic selftest failed."),          scard_support = 1;
236                   _("WinPT Error"), MB_ERR);  
237          return 0;      gpgver[0] = ma;
238      }      gpgver[1] = mi;
239        gpgver[2] = pa;
240      if (cmdline && stristr (cmdline, "--mobile"))      return true;
241          mobile = 1;  }
242    
243      set_default_kserver ();  
244    /* Try to load the keyserver config file. If @quiet is 1
245      if (!mobile) {     do not show any errors. */
246          regist_inst_gnupg (1);  static int
247          regist_inst_winpt (1, &created);  load_keyserver_conf (int quiet)
248      }  {
249      else {      const char *t;
250          enable_mobile_mode ();      int rc;
251          /* XXX: ask for GPG path */  
252          created = 1; /* Disable registry writing */      if (reg_prefs.kserv_conf)
253      }          t = reg_prefs.kserv_conf;
254        else if (!file_exist_check (get_prog_part ("keyserver.conf", 0)))
255      if (!created) {          t = get_prog_part ("keyserver.conf", 0);
256          memset (&reg_prefs, 0, sizeof (reg_prefs));      else
257          reg_prefs.use_tmpfiles = 1; /* default */          t = "keyserver.conf";
258          reg_prefs.fm.progress = 0; /* XXX: fix the bug and enable it again */      rc = kserver_load_conf (t);
259          get_reg_winpt_prefs (&reg_prefs);      if (rc && !quiet)
260          if (!reg_prefs.no_hotkeys)          msg_box (NULL, winpt_strerror (rc), _("Keyserver"), MB_ERR);
261              hotkeys_modify ();      return rc;
262      }  }
263    
264      rc = gnupg_check_homedir ();  
265      if (rc) {  /* Enable the mobility mode. */
266          log_box (_("WinPT Error"), MB_ERR,  static void
267                   _("GPG home directory is not set correctly.\n"  enable_mobile_mode (void)
268                     "Please check the GPG registry settings:\n%s."),  {
269                   winpt_strerror (rc));      memset (&reg_prefs, 0, sizeof (reg_prefs));
270          const char * s = get_filename_dlg (GetActiveWindow (), FILE_OPEN,      reg_prefs.always_trust = 0;
271                                             _("Select GPG Public Keyring"),      reg_prefs.auto_backup = 0;
272                                             _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),      reg_prefs.cache_time = 0;
273                                             NULL);      reg_prefs.expert = 0;
274          if (s && !file_exist_check (s))      reg_prefs.keylist_mode = 1;
275          {      reg_prefs.kserv_conf = m_strdup ("keyserver.conf");
276              size_t n;      reg_prefs.no_zip_mmedia = 1;
277              char * p = strrchr (s, '\\');      reg_prefs.use_tmpfiles = 1;
278              if (!p)      reg_prefs.word_wrap = 80;
279                  BUG (0);      reg_prefs.use_viewer = 0; /* XXX */
280              n = p - s;  }
281              if (n)  
282              {  
283                  char * file = new char[n+1];  /* Main entry point. */
284                  if (!file)  int WINAPI
285                      BUG (NULL);  WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)
286                  memset (file, 0, n);  {
287                  memcpy (file, s, n);      WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};
288                  file[n] = '\0';              HACCEL accel_tab;
289                  set_reg_entry_gpg ("HomeDir", file);      MSG msg;
290                  free_if_alloc (file);      HWND hwnd = NULL;
291                  gnupg_check_homedir (); /* change gpgProgram if needed */      WORD ver[3], ptdver[4];
292              }      int rc, ec, created = 0;
293          }      int first_start = 0, start_gpgprefs = 0;
294          else {      int winpt_inst_found = 0;
295              msg_box (NULL, _("GPG home directory could not be determited."),      int start_manager = 0;
296                       _("WinPT Error"), MB_ERR);      const char *s;
297              goto start;  
298          }      glob_hinst = hinst;
299      }      if (cmdline && stristr (cmdline, "--stop")) {
300            hwnd = FindWindow ("WinPT", "WinPT");
301      rc = check_gnupg_prog ();          if (hwnd != NULL)
302      if (rc) {              PostMessage (hwnd, WM_DESTROY, 0, 0);
303          if (msg_box (NULL, _("Could not find the GPG binary (gpg.exe).\n"          return 0;
304                               "Do you want to start the GPG preferences to "      }
305                               "correct  this problem?"), _("WinPT Error"),  
306                               MB_INFO|MB_YESNO) == IDYES)      /*
307              start_gpgprefs = 1;      OSVERSIONINFO osinf;
308          else      memset (&osinf, 0, sizeof (osinf));
309          {      if (GetVersionEx (&osinf) &&
310              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);          osinf.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS &&
311              return 0;          osinf.dwMinorVersion == 0) {
312          }          msg_box (NULL, "WinPT propably does not work on Windows 95 without restrictions",
313      }                   "WinPT Warning", MB_INFO);
314        }
315      rc = gnupg_access_files ();      */
316      if (!start_gpgprefs && rc)  
317      {      #ifdef _DEBUG
318          if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS)      gpg_set_debug_mode (1);
319          {      debug = 1;
320              ec = msg_box (NULL,      #endif
321                  _("Could not access and/or find the public and secret keyring.\n"  
322                    "If this is an accident, quit the program and fix it.\n\n"      get_file_version ("WinPT.exe", &ver[0], &ver[1], &ver[2], &ver[3]);
323                    "Continue if you want that WinPT offers you more choices.\n"),      get_file_version ("PTD.dll", &ptdver[0], &ptdver[1],
324                    "WinPT", MB_INFO|MB_YESNO);                                   &ptdver[2], &ptdver[3]);
325              if (ec == IDYES)      /* XXX
326                  first_start = 1;      if (ptdver[0] != ver[0] || ptdver[1] != ver[1]|| ptdver[2] != ver[2]) {
327          }          log_box (_("WinPT Error"), MB_ERR,
328          if (!first_start)                   _("The PTD.dll file has a different version than WinPT.exe\n"
329          {                     "Please update the PTD.dll to version %d.%d.%d"),
330              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);                     ver[0], ver[1], ver[2]);
331              return 0;          return 0;
332          }      }
333      }      */
334    
335      if (!first_start)      if (gpg_md_selftest ()) {
336      {          msg_box (NULL, _("Cryptographic selftest failed."),
337          rc = gpg_check_permissions (1);                   _("WinPT Error"), MB_ERR);
338          if (rc && rc == 2)          return 0;
339              gpg_read_only = 1;      }
340          else if (rc)  
341              return 0;      s = gpgme_check_version (MIN_GPGME_VER);
342      }      if (!s || !*s) {
343            msg_box (NULL, _("A newer GPGME version is needed; at least "MIN_GPGME_VER),
344      load_gettext ();                   _("WinPT Error"), MB_ERR);
345      init_gnupg_table ();          return 0;
346        }
347      nfiles = fm_parse_command_line (cmdline);  
348      if (nfiles > 0)      CreateMutex (NULL, TRUE, PGM_NAME);
349          return 0;      if (GetLastError () == ERROR_ALREADY_EXISTS)
350            winpt_inst_found = 1;
351      if (cmdline && stristr (cmdline, "--wipe-freespace")) {  
352          dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_SPACE_SECDEL,      if (cmdline && stristr (cmdline, "--mobile")) {
353                              GetDesktopWindow(), space_wipefrees_dlg_proc, NULL,          msg_box (NULL, "WARNING: mobile modus is not fully implemented yet!",
354                              _("Wipe Free Space"), IDS_WINPT_SPACE_SECDEL);                   "WinPT", MB_INFO);
355          free_gnupg_table ();          mobile = 1;
356          return 0;      }
357      }  
358        set_default_kserver ();
359      load_keyserver_conf (cmdline? 1 : 0);      load_gettext (winpt_inst_found);
360      if (cmdline && (stristr (cmdline, "--keymanager")  
361                  || stristr (cmdline, "--cardmanager"))) {      if (!mobile) {
362          update_keycache (GetDesktopWindow ());          regist_inst_gnupg (1);
363          if (stristr (cmdline, "keymanager"))          regist_inst_winpt (1, &created);
364              dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_KEYMISC,      }
365                              GetDesktopWindow(), keymanager_dlg_proc, NULL,      else {
366                              _("Key Manager"), IDS_WINPT_KEYMISC);          enable_mobile_mode ();
367          else {          /* XXX: ask for GPG path */
368              gpgme_card_t crd = smartcard_init ();          created = 1; /* Disable registry writing */
369              if (crd)      }
370                  dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_CARD_EDIT,  
371                                    GetDesktopWindow(), card_edit_dlg_proc,      if (!created) {
372                                    (LPARAM)crd, _("Card Manager"),          memset (&reg_prefs, 0, sizeof (reg_prefs));
373                                    IDS_WINPT_CARD_EDIT);          reg_prefs.use_tmpfiles = 1; /* default */
374              gpgme_card_release (crd);          reg_prefs.fm.progress = 0; /* XXX: fix the bug and enable it again */
375          }          get_reg_winpt_prefs (&reg_prefs);
376          keycache_release ();          if (!reg_prefs.no_hotkeys)
377          free_gnupg_table ();              hotkeys_modify ();
378          return 0;          gnupg_load_config ();
379      }      }
380    
381      CreateMutex (NULL, TRUE, PGM_NAME);      if (is_gpg4win_installed ())
382      if (GetLastError () == ERROR_ALREADY_EXISTS) {          load_gpg_env (); /* XXX: check return code. */
383          free_gnupg_table ();  
384          return 0;      rc = gnupg_check_homedir ();
385      }      if (rc) {
386            log_box (_("WinPT Error"), MB_ERR,
387      if (cmdline) {                   _("GPG home directory is not set correctly.\n"
388          if (stristr (cmdline, "--enable-debug") || stristr (cmdline, "--debug")) {                     "Please check the GPG registry settings:\n%s."),
389              gpgme_set_debug_mode (1);                   winpt_strerror (rc));
390              winpt_debug_msg ();          s = get_fileopen_dlg (GetActiveWindow (),
391              debug = 1;                                _("Select GPG Public Keyring"),
392          }                                _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),
393      }                                NULL);
394            if (s != NULL) {
395      wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));              size_t n;
396      rc = RegisterClass (&wc);              char *p = strrchr (s, '\\');
397      if (rc == FALSE) {              if (!p)
398          msg_box (NULL, _("Could not register window class"), _("WinPT Error"), MB_ERR);                  BUG (0);
399          free_gnupg_table ();              n = p - s;
400          return 0;              if (n) {
401      }                  char *file = new char[n+1];
402                    if (!file)
403      hwnd = CreateWindow (PGM_NAME,                      BUG (NULL);
404                           PGM_NAME,                  memset (file, 0, n);
405                           0, 0, 0, 0, 0,                  memcpy (file, s, n);
406                           NULL,                  file[n] = '\0';        
407                           NULL,                  set_reg_entry_gpg ("HomeDir", file);
408                           hinst,                  free_if_alloc (file);
409                           NULL);                  gnupg_check_homedir (); /* change gpgProgram if needed */
410      if (hwnd == NULL) {              }
411          msg_box (NULL, _("Could not create window"), _("WinPT Error"), MB_ERR);          }
412          free_gnupg_table ();          else {
413          return 0;              msg_box (NULL, _("GPG home directory could not be determited."),
414      }                       _("WinPT Error"), MB_ERR);
415      glob_hwnd = hwnd;              goto start;
416      UpdateWindow (hwnd);          }
417        }
418      if (!first_start && !start_gpgprefs) {  
419          gnupg_backup_options (1);      rc = check_gnupg_prog ();
420          gnupg_backup_options (0);      if (rc) {
421                    if (msg_box (NULL, _("Could not find the GPG binary (gpg.exe).\n"
422          rc = check_crypto_engine ();                               "Do you want to start the GPG preferences to "
423          if (rc) {                               "correct  this problem?"), _("WinPT Error"),
424              DestroyWindow (hwnd);                               MB_INFO|MB_YESNO) == IDYES)
425              free_gnupg_table ();              start_gpgprefs = 1;
426              return 0;          else {
427          }              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
428      }              return 0;
429            }
430      if (start_gpgprefs)      }
431      {  
432          char *ring;      rc = gnupg_access_files ();
433          size_t size = 0;      if (!start_gpgprefs && rc) {
434          DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,          if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS) {
435                          gpgprefs_dlg_proc, NULL);              ec = msg_box (NULL,
436          ring = get_gnupg_keyring (0, !NO_STRICT);                  _("Could not access and/or find the public and secret keyring.\n"
437          if (gnupg_access_keyring (0) == -1 && get_file_size (ring) == 0)                    "If this is an accident, quit the program and fix it.\n\n"
438              first_start = 1; /* The keyring is empty! */                    "Continue if you want that WinPT offers you more choices.\n"),
439          free_if_alloc (ring);                    "WinPT", MB_INFO|MB_YESNO);
440      }              if (ec == IDYES)
441                    first_start = 1;
442      if (first_start) {          }
443          struct key_wizard_s c, dummy;          if (!first_start) {
444  start:              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
445          DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_FIRST, hwnd,              return 0;
446                          first_run_dlg_proc, (LPARAM)&dummy);          }
447          switch (dummy.interactive)      }
448          {  
449          case SETUP_KEYGEN:      if (!first_start) {
450              c.interactive = 1;          rc = gpg_check_permissions (1);
451              rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYWIZARD,          if (rc && rc == 2)
452                                   hwnd, keygen_wizard_dlg_proc, (LPARAM)&c);              gpg_read_only = 1;
453              if (!rc)          else if (rc)
454                  goto start;              return 0;
455              break;      }
456        
457          case SETUP_IMPORT:      init_gnupg_table ();
458              rc = gnupg_copy_keyrings ();  
459              if (rc) {      if (fm_parse_command_line (cmdline) > 0) {
460                  msg_box (hwnd, winpt_strerror (rc), _("WinPT Error"), MB_ERR);          free_gnupg_table ();
461                  goto start;          return 0;
462              }      }
463              break;  
464        if (cmdline && stristr (cmdline, "--wipe-freespace")) {
465          case SETUP_EXISTING:          dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_SPACE_SECDEL,
466              DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,                              GetDesktopWindow(), space_wipefrees_dlg_proc, 0,
467                              gpgprefs_dlg_proc, NULL);                              _("Wipe Free Space"), IDS_WINPT_SPACE_SECDEL);
468              break;          free_gnupg_table ();
469            return 0;
470          case -1:      }
471              DestroyWindow (hwnd);  
472              free_gnupg_table ();      load_keyserver_conf (cmdline? 1 : 0);
473              return 0;  
474          }      if (cmdline && (stristr (cmdline, "--keymanager")
475          update_keycache (hwnd);                  || stristr (cmdline, "--cardmanager"))) {
476          check_crypto_engine ();          /* If an instance of WinPT is running, just send the command
477      }             to open the key manager. Otherwise start a new instance.
478      else {           */
479          gpgme_keycache_t c;          HWND tray = FindWindow ("WinPT", "WinPT");
480          update_keycache (hwnd);          if (stristr (cmdline, "keymanager"))
481          c = keycache_get_ctx (1);              start_manager = ID_WINPT_KEY;
482          if (!c || !gpgme_keycache_count (c)) {          else
483              gnupg_display_error ();              start_manager = ID_WINPT_CARD;
484              msg_box (hwnd, _("The keycache was not initialized or is empty.\n"          if (tray != NULL) {
485                               "Please check your GPG config (keyrings, pathes...)"),              PostMessage (tray, WM_COMMAND, start_manager, 0);
486                               _("WinPT Error"), MB_ERR);              free_gnupg_table ();
487              ec = msg_box (NULL, _("It seems that GPG is not set properly.\n"              return 0;
488                                    "Do you want to start the GPG preferences dialog?"),          }
489                              "WinPT", MB_INFO|MB_YESNO);      }
490              if (ec == IDYES) {  
491                  DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,      /* If we found another WinPT instance, just quit to avoid it
492                                  gpgprefs_dlg_proc, NULL);         will be executed twice. */
493                  update_keycache (hwnd);      if (winpt_inst_found) {
494              }          log_debug ("%s", "WinMain: WinPT is already running.");
495              else {          free_gnupg_table ();
496                  DestroyWindow (hwnd);          return 0;
497                  free_gnupg_table ();      }
498                  return 0;  
499              }      if (cmdline) {
500          }          if (stristr (cmdline, "--enable-debug") ||
501          if (check_default_key (c)) {              stristr (cmdline, "--debug")) {
502              char * p = get_gnupg_default_key ();              gpg_set_debug_mode (1);
503              log_box (_("WinPT Error"), MB_ERR,              winpt_debug_msg ();
504                       _("Default key from the GPG options file could not be found.\n"              debug = 1;
505                         "Please check your gpg.conf (options) to correct this:\n\n"          }
506                         "%s: public key not found."), p? p : "[null]");      }
507              free_if_alloc (p);  
508              DestroyWindow (hwnd);      wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));
509              free_gnupg_table ();      rc = RegisterClass (&wc);
510              return 0;      if (rc == FALSE) {
511          }          msg_box (NULL, _("Could not register window class"),
512          if (count_insecure_elgkeys ())                   _("WinPT Error"), MB_ERR);
513              DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_ELGWARN, glob_hwnd,          free_gnupg_table ();
514                              elgamal_warn_dlg_proc, NULL);          return 0;
515      }      }
516    
517      accel_tab = LoadAccelerators (glob_hinst, (LPCTSTR)IDR_WINPT_ACCELERATOR);      hwnd = CreateWindow (PGM_NAME,
518      keyring_check_last_access (); /* init */                           PGM_NAME,
519      while (GetMessage (&msg, hwnd, 0, 0)) {                           0, 0, 0, 0, 0,
520          if (!TranslateAccelerator (msg.hwnd, accel_tab, &msg)) {                           NULL,
521              TranslateMessage (&msg);                           NULL,
522              DispatchMessage (&msg);                           hinst,
523          }                           NULL);
524      }      if (hwnd == NULL) {
525                    msg_box (NULL, _("Could not create window"), _("WinPT Error"), MB_ERR);
526      return 0;          free_gnupg_table ();
527  } /* WinMain */          return 0;
528        }
529        glob_hwnd = hwnd;
530        UpdateWindow (hwnd);
531    
532        if (!first_start && !start_gpgprefs) {
533            gnupg_backup_options ();        
534            if (!check_crypto_engine ()) {
535                DestroyWindow (hwnd);
536                free_gnupg_table ();
537                return 0;
538            }
539        }
540        
541        if (start_gpgprefs) {
542            char *ring;
543            DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,
544                            gpgprefs_dlg_proc, 0);
545            ring = get_gnupg_keyring (0, !NO_STRICT);
546            if (gnupg_access_keyring (0) == -1 && get_file_size (ring) == 0)
547                first_start = 1; /* The keyring is empty! */
548            free_if_alloc (ring);
549        }
550    
551        if (first_start) {
552            struct first_start_s fs;
553            struct genkey_s c;
554            HWND h;
555    start:
556            h = GetDesktopWindow ();
557            DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, h,
558                                gpgprefs_dlg_proc, 0);
559            DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_FIRST, h,
560                            first_run_dlg_proc, (LPARAM)&fs);
561            switch (fs.choice) {
562            case SETUP_KEYGEN:
563                c.interactive = 1;
564                c.first_start = 1;
565                rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYWIZARD,
566                                     h, keygen_wizard_dlg_proc, (LPARAM)&c);
567                if (!rc)
568                    goto start;
569                break;
570    
571            case SETUP_IMPORT:
572                rc = gnupg_copy_keyrings ();
573                if (rc) {
574                    msg_box (hwnd, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
575                    goto start;
576                }
577                break;
578    
579            case -1:
580                DestroyWindow (hwnd);
581                free_gnupg_table ();
582                return 0;
583            }
584            update_keycache (hwnd);
585            check_crypto_engine ();
586        }
587        else {
588            gpg_keycache_t c;
589            update_keycache (hwnd);
590            c = keycache_get_ctx (1);
591            if (!c || !gpg_keycache_get_size (c)) {
592                gnupg_display_error ();
593                msg_box (hwnd, _("The keycache was not initialized or is empty.\n"
594                                 "Please check your GPG config (keyrings, pathes...)"),
595                                 _("WinPT Error"), MB_ERR);
596                ec = msg_box (NULL, _("It seems that GPG is not set properly.\n"
597                                      "Do you want to start the GPG preferences dialog?"),
598                                "WinPT", MB_INFO|MB_YESNO);
599                if (ec == IDYES) {
600                    DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,
601                                    gpgprefs_dlg_proc, 0);
602                    update_keycache (hwnd);
603                }
604                else {
605                    DestroyWindow (hwnd);
606                    free_gnupg_table ();
607                    return 0;
608                }
609            }
610            if (check_default_key (c)) {
611                char *p = get_gnupg_default_key ();
612                log_box (_("WinPT Error"), MB_ERR,
613                         _("Default key from the GPG options file could not be found.\n"
614                           "Please check your gpg.conf (options) to correct this:\n\n"
615                           "%s: public key not found."), p? p : "[null]");
616                free_if_alloc (p);
617                DestroyWindow (hwnd);
618                free_gnupg_table ();
619                return 0;
620            }
621            if (count_insecure_elgkeys ())
622                DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_ELGWARN, glob_hwnd,
623                                elgamal_warn_dlg_proc, 0);
624        }
625    
626        if (start_manager)
627            PostMessage (hwnd, WM_COMMAND, start_manager, 0);
628    
629        accel_tab = LoadAccelerators (glob_hinst, (LPCTSTR)IDR_WINPT_ACCELERATOR);
630        keyring_check_last_access (); /* init */
631        while (GetMessage (&msg, hwnd, 0, 0)) {
632            if (!TranslateAccelerator (msg.hwnd, accel_tab, &msg)) {
633                TranslateMessage (&msg);
634                DispatchMessage (&msg);
635            }
636        }
637            
638        return 0;
639    }
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