/[winpt]/trunk/Src/WinPT.cpp
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revision 26 by twoaday, Mon Oct 17 08:49:30 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  #include <windows.h>  #ifdef HAVE_CONFIG_H
21    #include <config.h>
22  #include "../resource.h"  #endif
23  #include "wptTypes.h"  
24  #include "wptW32API.h"  #include <windows.h>
25  #include "wptVersion.h"  
26  #include "wptErrors.h"  #include "resource.h"
27  #include "wptGPG.h"  #include "wptTypes.h"
28  #include "wptRegistry.h"  #include "wptW32API.h"
29  #include "wptCommonCtl.h"  #include "wptVersion.h"
30  #include "wptDlgs.h"  #include "wptErrors.h"
31  #include "wptNLS.h"  #include "wptGPG.h"
32  #include "wptKeyserver.h"  #include "wptRegistry.h"
33  #include "wptCard.h"  #include "wptCommonCtl.h"
34  #include "wptFileManager.h"  #include "wptDlgs.h"
35  #include "wptContext.h"  #include "wptNLS.h"
36  #include "wptCardEdit.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  static void  HWND glob_hwnd;         /* global window handle for the dialogs */
49  update_keycache (HWND hwnd)  HWND activ_hwnd;
50  {  LOCK mo_file;
51      refresh_cache_s rcs = {0};  int scard_support = 0;
52      rcs.kr_reload = 0;  int debug = 0;
53      rcs.kr_update = 1;  int mobile = 0;
54      rcs.tr_update = 1;  int gpg_read_only = 0;
55      DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYCACHE, hwnd,  char gpgver[3];
56                      keycache_dlg_proc, (LPARAM)&rcs);  
57  } /* update_keycache */  
58    /* Load the key cache and rebuild the signature cache. */
59    static void
60  /* Set GPGME debug mode. If @val is 0, the debug mode is disabled. */  update_keycache (HWND hwnd)
61  void  {
62  gpg_set_debug_mode (int val)      refresh_cache_s rcs = {0};
63  {            rcs.kr_reload = 0;
64      if (val)      rcs.kr_update = 1;
65          putenv ("GPGME_DEBUG=5:gpgme.dbg");      rcs.tr_update = 1;
66      else      DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYCACHE, hwnd,
67          putenv ("GPGME_DEBUG=");                      keycache_dlg_proc, (LPARAM)&rcs);
68  }  }
69    
70  static char *  
71  get_gettext_lang (void)  /* Set GPGME debug mode. If @val is 0, the debug mode is disabled. */
72  {      void
73      char * fname;  gpg_set_debug_mode (int val)
74      fname = get_reg_entry_mo ();  {      
75      if (!fname)      if (val)
76          return NULL;          putenv ("GPGME_DEBUG=5:gpgme.dbg");
77      return fname;      else
78  } /* get_gettext_lang */          putenv ("GPGME_DEBUG=");
79    }
80    
81  static void  
82  load_gettext (void)  /* Return the name of the gettext language file. */
83  {  static char*
84      char *nls = NULL;  get_gettext_lang (void)
85      char *file = NULL;  {    
86        char *fname;
87      nls = get_gettext_lang ();      fname = get_reg_entry_mo ();
88      if (nls) {      if (!fname)
89          set_gettext_file ("winpt", nls);          return NULL;
90          file = make_filename (nls, "winpt", "mo");      return fname;
91          if (!file_exist_check (nls) && init_file_lock (&mo_file, file))  {  }
92              msg_box (NULL, _("Could not initizalize file lock.\n"  
93                               "Native Language Support"),  
94                       _("WinPT Error"), MB_ERR);  /* Initialize the gettext sub system. */
95          }  static void
96          free_if_alloc (nls);  load_gettext (int prev_inst)
97          free_if_alloc (file);  {
98      }      char *nls = NULL;
99  } /* load_gettext */      char *file = NULL;
100    
101        nls = get_gettext_lang ();
102  /* check if the default key from the gpg.conf file is available in the      if (nls) {
103     keyring. if not, bail out because encryption won't work properly then. */          set_gettext_file ("winpt", nls);
104  static int          file = make_filename (nls, "winpt", "mo");
105  check_default_key (gpg_keycache_t kc)          if (!file_exist_check (nls) && init_file_lock (&mo_file, file))  {
106  {              if (!prev_inst)
107      gpgme_key_t key;                  msg_box (NULL, _("Could not initizalize file lock.\n"
108      gpgme_error_t err = GPG_ERR_NO_ERROR;                                   "Native Language Support"),
109      char * defkey;                           _("WinPT Error"), MB_ERR);
110            }
111      defkey = get_gnupg_default_key ();          free_if_alloc (nls);
112      if (defkey)          free_if_alloc (file);
113          err = gpg_keycache_find_key (kc, defkey, 0, &key);      }
114      free_if_alloc (defkey);  }
115      return err? -1 : 0;  
116  } /* check_default_key */  
117    /* Load the GPG environment. On the first start, some
118       checks are performed to find out in what state GPG is.
119  /* Return the WinPT program file name (with full pathname). */     Return value: 0  everything OK.
120  static const char *                   >0  fatal error.
121  get_prog_part (const char * fname, int use_cwd)                   -1 public keyring is empty or does not exist. */
122  {  static int
123      static char program[1024];  load_gpg_env (void)
124      char currdir[256], * cmd = NULL;  {
125      int j;      SECURITY_ATTRIBUTES sec_attr;
126                char *p;
127      memset (currdir, 0, DIM (currdir));      char *pkr;
128      memset (program, 0, DIM (program));  
129                p = get_reg_entry_gpg4win ("gpg.exe");
130      if (use_cwd) {      if (!p)
131          GetCurrentDirectory (DIM (currdir)-1, currdir);          return (1);
132          _snprintf (program, DIM (program)-1, "%s\\%s", currdir, fname);      if (file_exist_check (p)) {
133      }          free_if_alloc (p);
134      else {          return (1);
135          cmd = GetCommandLine ();      }
136          if (cmd == NULL)      free_if_alloc (p);
137              return NULL;      p = multi_gnupg_path (0);
138          strncpy (currdir, cmd, 255);      if (p && dir_exist_check (p)) {
139          j = strlen (currdir);          memset (&sec_attr, 0, sizeof (sec_attr));
140          while (j--) {          sec_attr.nLength = sizeof (sec_attr);
141              if (currdir[j] == '\\')          if (!CreateDirectory (p, &sec_attr)) {
142                  break;                        msg_box (NULL, _("Could not create GPG home directory"),
143          }                       _("WinPT Error"), MB_ERR);
144          currdir[j] = 0;              free_if_alloc (p);
145          _snprintf (program, DIM (program)-1, "%s\\%s", currdir + 1, fname);              return (2);
146      }          }
147      return program;      }
148  } /* get_prog_part */      pkr = make_filename (p, "pubring", "gpg");
149        free_if_alloc (p);
150        if (!pkr)
151  static int          return -1;
152  check_crypto_engine (void)      if (get_file_size (pkr) == 0) {
153  {          free_if_alloc (pkr);
154      int ma=1, mi=4, pa=1; /* GPG 1.4.1 */          return -1;
155      int rc;      }
156        return 0;
157      rc = check_gnupg_engine (&ma, &mi, &pa);  }
158      if (rc == -1) {  
159          msg_box (NULL, _("Could not read GnuPG version."), _("WinPT Error"), MB_ERR);  /* check if the default key from the gpg.conf file is available in the
160          return rc;     keyring. if not, bail out because encryption won't work properly then. */
161      }  static int
162      else if (rc) {  check_default_key (gpg_keycache_t kc)
163          log_box (_("WinPT Error"), MB_ERR,  {
164                   _("Sorry, you need a newer GPG version.\n"      gpgme_key_t key;
165                     "GPG version %d.%d.%d required GPG version 1.4.0"),      gpgme_error_t err = GPG_ERR_NO_ERROR;
166                     ma, mi, pa);      char *defkey;
167          return rc;  
168      }      defkey = get_gnupg_default_key ();
169      /* We enable smartcard support for GPG: 1.9.x or >= 1.4.0 */      if (defkey)
170      if (ma >= 1 && mi >= 4)          err = gpg_keycache_find_key (kc, defkey, 0, &key);
171          scard_support = 1;      else
172            msg_box (NULL, _("No useable secret key found."),
173      gpgver[0] = ma;                   _("WinPT Error"), MB_ERR);
174      gpgver[1] = mi;      free_if_alloc (defkey);
175      gpgver[2] = pa;      return err? -1 : 0;
176      return rc;  }
177  } /* check_crypto_engine */  
178    
179    /* Return the WinPT program file name (with full pathname). */
180  static int  static const char*
181  load_keyserver_conf (int quiet)  get_prog_part (const char * fname, int use_cwd)
182  {  {
183      const char * t;      static char program[512];
184      int rc;      char currdir[256];
185        char *cmd = NULL;
186      if (reg_prefs.kserv_conf)      int j;
187          t = reg_prefs.kserv_conf;          
188      else if (!file_exist_check (get_prog_part ("keyserver.conf", 0)))      memset (currdir, 0, DIM (currdir));
189          t = get_prog_part ("keyserver.conf", 0);      memset (program, 0, DIM (program));
190      else          
191          t = "keyserver.conf";      if (use_cwd) {
192      rc = kserver_load_conf (t);          GetCurrentDirectory (DIM (currdir)-1, currdir);
193      if (rc && !quiet)          _snprintf (program, DIM (program)-1, "%s\\%s", currdir, fname);
194          msg_box (NULL, winpt_strerror (rc), _("Keyserver"), MB_ERR);      }
195      return rc;      else {
196  }          cmd = GetCommandLine ();
197            if (cmd == NULL)
198                return NULL;
199  static void          strncpy (currdir, cmd, sizeof (currdir)-1);
200  enable_mobile_mode (void)          j = strlen (currdir);
201  {          while (j--) {
202      memset (&reg_prefs, 0, sizeof (reg_prefs));              if (currdir[j] == '\\')
203      reg_prefs.always_trust = 0;                  break;
204      reg_prefs.auto_backup = 0;          }
205      reg_prefs.cache_time = 0;          currdir[j] = 0;
206      reg_prefs.expert = 0;          _snprintf (program, DIM (program)-1, "%s\\%s", currdir + 1, fname);
207      reg_prefs.keylist_mode = 1;      }
208      reg_prefs.kserv_conf = m_strdup ("keyserver.conf");      return program;
209      reg_prefs.no_zip_mmedia = 1;  }
210      reg_prefs.use_tmpfiles = 1;  
211      reg_prefs.word_wrap = 80;  
212      reg_prefs.use_viewer = 0; /* XXX */  /* Check that the underlying crypto engine fullfills the minimal
213  }     requirements so all commands work properly. */
214    static bool
215  char* get_subkey_fingerprint (gpgme_ctx_t ctx, const char *keyid);  check_crypto_engine (void)
216    {
217        int ma=1, mi=4, pa=2; /* GPG 1.4.2 */
218  int WINAPI      int rc;
219  WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)  
220  {      rc = check_gnupg_engine (&ma, &mi, &pa);
221      WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};      if (rc == -1) {
222      HACCEL accel_tab;          msg_box (NULL, _("Could not read GnuPG version."),
223      int rc, ec, created = 0, use_cwd = 0, nfiles = 0;                   _("WinPT Error"), MB_ERR);
224      int first_start = 0, start_gpgprefs = 0;          return false;
225      const char * s;      }
226      MSG msg;      else if (rc) {
227      HWND hwnd = NULL;          log_box (_("WinPT Error"), MB_ERR,
228                     _("Sorry, you need a newer GPG version.\n"
229      glob_hinst = hinst;                     "GPG version %d.%d.%d required GPG version "MIN_GPG_VER),
230                       ma, mi, pa);
231      #ifdef _DEBUG          return false;
232      gpg_set_debug_mode (1);      }
233      debug = 1;      /* We enable smartcard support for GPG: >= 2 or >= 1.4.3 */
234      #endif      if (ma > 1 || pa >= 3)    
235            scard_support = 1;
236      s = PTD_get_version ();  
237      if (strcmp (s, "0.8.0")) {      gpgver[0] = ma;
238          log_box (_("Privacy Tray Dynamic (PTD)"), MB_ERR,      gpgver[1] = mi;
239                   _("Please update your PTD.dll to the newest version, "      gpgver[2] = pa;
240                     "the version (%s) you use is too old."), s);      return true;
241          return 0;  }
242      }  
243    
244      if (gpg_md_selftest ()) {  /* Try to load the keyserver config file. If @quiet is 1
245          msg_box (NULL, _("Cryptographic selftest failed."),     do not show any errors. */
246                   _("WinPT Error"), MB_ERR);  static int
247          return 0;  load_keyserver_conf (int quiet)
248      }  {
249        const char *t;
250      s = gpgme_check_version ("1.1.0");      int rc;
251      if (!s || !*s) {  
252          msg_box (NULL, _("A newer GPGME version is needed."), "WinPT Error", MB_ERR);      if (reg_prefs.kserv_conf)
253          return 0;          t = reg_prefs.kserv_conf;
254      }      else if (!file_exist_check (get_prog_part ("keyserver.conf", 0)))
255            t = get_prog_part ("keyserver.conf", 0);
256      if (cmdline && stristr (cmdline, "--mobile")) {      else
257          msg_box (NULL, "WARNING: mobile modus is not fully implemented yet!",          t = "keyserver.conf";
258                   "WinPT", MB_INFO);      rc = kserver_load_conf (t);
259          mobile = 1;      if (rc && !quiet)
260      }          msg_box (NULL, winpt_strerror (rc), _("Keyserver"), MB_ERR);
261        return rc;
262      set_default_kserver ();  }
263    
264      if (!mobile) {  
265          regist_inst_gnupg (1);  /* Enable the mobility mode. */
266          regist_inst_winpt (1, &created);  static void
267      }  enable_mobile_mode (void)
268      else {  {
269          enable_mobile_mode ();      memset (&reg_prefs, 0, sizeof (reg_prefs));
270          /* XXX: ask for GPG path */      reg_prefs.always_trust = 0;
271          created = 1; /* Disable registry writing */      reg_prefs.auto_backup = 0;
272      }      reg_prefs.cache_time = 0;
273        reg_prefs.expert = 0;
274      if (!created) {      reg_prefs.keylist_mode = 1;
275          memset (&reg_prefs, 0, sizeof (reg_prefs));      reg_prefs.kserv_conf = m_strdup ("keyserver.conf");
276          reg_prefs.use_tmpfiles = 1; /* default */      reg_prefs.no_zip_mmedia = 1;
277          reg_prefs.fm.progress = 0; /* XXX: fix the bug and enable it again */      reg_prefs.use_tmpfiles = 1;
278          get_reg_winpt_prefs (&reg_prefs);      reg_prefs.word_wrap = 80;
279          if (!reg_prefs.no_hotkeys)      reg_prefs.use_viewer = 0; /* XXX */
280              hotkeys_modify ();  }
281      }  
282    
283      rc = gnupg_check_homedir ();  /* Main entry point. */
284      if (rc) {  int WINAPI
285          log_box (_("WinPT Error"), MB_ERR,  WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)
286                   _("GPG home directory is not set correctly.\n"  {
287                     "Please check the GPG registry settings:\n%s."),      WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};
288                   winpt_strerror (rc));      HACCEL accel_tab;
289          const char * s = get_fileopen_dlg (GetActiveWindow (),      MSG msg;
290                                             _("Select GPG Public Keyring"),      HWND hwnd = NULL;
291                                             _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),      WORD ver[3], ptdver[4];
292                                             NULL);      int rc, ec, created = 0;
293          if (s != NULL) {      int first_start = 0, start_gpgprefs = 0;
294              size_t n;      int winpt_inst_found = 0;
295              char * p = strrchr (s, '\\');      int start_manager = 0;
296              if (!p)      const char *s;
297                  BUG (0);  
298              n = p - s;      glob_hinst = hinst;
299              if (n)      if (cmdline && stristr (cmdline, "--stop")) {
300              {          hwnd = FindWindow ("WinPT", "WinPT");
301                  char * file = new char[n+1];          if (hwnd != NULL)
302                  if (!file)              PostMessage (hwnd, WM_DESTROY, 0, 0);
303                      BUG (NULL);          return 0;
304                  memset (file, 0, n);      }
305                  memcpy (file, s, n);  
306                  file[n] = '\0';              /*
307                  set_reg_entry_gpg ("HomeDir", file);      OSVERSIONINFO osinf;
308                  free_if_alloc (file);      memset (&osinf, 0, sizeof (osinf));
309                  gnupg_check_homedir (); /* change gpgProgram if needed */      if (GetVersionEx (&osinf) &&
310              }          osinf.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS &&
311          }          osinf.dwMinorVersion == 0) {
312          else {          msg_box (NULL, "WinPT propably does not work on Windows 95 without restrictions",
313              msg_box (NULL, _("GPG home directory could not be determited."),                   "WinPT Warning", MB_INFO);
314                       _("WinPT Error"), MB_ERR);      }
315              goto start;      */
316          }  
317      }      #ifdef _DEBUG
318        gpg_set_debug_mode (1);
319      rc = check_gnupg_prog ();      debug = 1;
320      if (rc) {      #endif
321          if (msg_box (NULL, _("Could not find the GPG binary (gpg.exe).\n"  
322                               "Do you want to start the GPG preferences to "      get_file_version ("WinPT.exe", &ver[0], &ver[1], &ver[2], &ver[3]);
323                               "correct  this problem?"), _("WinPT Error"),      get_file_version ("PTD.dll", &ptdver[0], &ptdver[1],
324                               MB_INFO|MB_YESNO) == IDYES)                                   &ptdver[2], &ptdver[3]);
325              start_gpgprefs = 1;      /* XXX
326          else      if (ptdver[0] != ver[0] || ptdver[1] != ver[1]|| ptdver[2] != ver[2]) {
327          {          log_box (_("WinPT Error"), MB_ERR,
328              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);                   _("The PTD.dll file has a different version than WinPT.exe\n"
329              return 0;                     "Please update the PTD.dll to version %d.%d.%d"),
330          }                     ver[0], ver[1], ver[2]);
331      }          return 0;
332        }
333      rc = gnupg_access_files ();      */
334      if (!start_gpgprefs && rc)  
335      {      if (gpg_md_selftest ()) {
336          if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS)          msg_box (NULL, _("Cryptographic selftest failed."),
337          {                   _("WinPT Error"), MB_ERR);
338              ec = msg_box (NULL,          return 0;
339                  _("Could not access and/or find the public and secret keyring.\n"      }
340                    "If this is an accident, quit the program and fix it.\n\n"  
341                    "Continue if you want that WinPT offers you more choices.\n"),      s = gpgme_check_version (MIN_GPGME_VER);
342                    "WinPT", MB_INFO|MB_YESNO);      if (!s || !*s) {
343              if (ec == IDYES)          msg_box (NULL, _("A newer GPGME version is needed; at least "MIN_GPGME_VER),
344                  first_start = 1;                   _("WinPT Error"), MB_ERR);
345          }          return 0;
346          if (!first_start)      }
347          {  
348              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);      CreateMutex (NULL, TRUE, PGM_NAME);
349              return 0;      if (GetLastError () == ERROR_ALREADY_EXISTS)
350          }          winpt_inst_found = 1;
351      }  
352        if (cmdline && stristr (cmdline, "--mobile")) {
353      if (!first_start)          msg_box (NULL, "WARNING: mobile modus is not fully implemented yet!",
354      {                   "WinPT", MB_INFO);
355          rc = gpg_check_permissions (1);          mobile = 1;
356          if (rc && rc == 2)      }
357              gpg_read_only = 1;  
358          else if (rc)      set_default_kserver ();
359              return 0;      load_gettext (winpt_inst_found);
360      }  
361        if (!mobile) {
362      load_gettext ();          regist_inst_gnupg (1);
363      init_gnupg_table ();          regist_inst_winpt (1, &created);
364        }
365      nfiles = fm_parse_command_line (cmdline);      else {
366      if (nfiles > 0)          enable_mobile_mode ();
367          return 0;          /* XXX: ask for GPG path */
368            created = 1; /* Disable registry writing */
369      if (cmdline && stristr (cmdline, "--wipe-freespace")) {      }
370          dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_SPACE_SECDEL,  
371                              GetDesktopWindow(), space_wipefrees_dlg_proc, NULL,      if (!created) {
372                              _("Wipe Free Space"), IDS_WINPT_SPACE_SECDEL);          memset (&reg_prefs, 0, sizeof (reg_prefs));
373          free_gnupg_table ();          reg_prefs.use_tmpfiles = 1; /* default */
374          return 0;          reg_prefs.fm.progress = 0; /* XXX: fix the bug and enable it again */
375      }          get_reg_winpt_prefs (&reg_prefs);
376            if (!reg_prefs.no_hotkeys)
377      load_keyserver_conf (cmdline? 1 : 0);              hotkeys_modify ();
378            gnupg_load_config ();
379      if (cmdline && (stristr (cmdline, "--keymanager")      }
380                  || stristr (cmdline, "--cardmanager"))) {  
381          update_keycache (GetDesktopWindow ());      if (is_gpg4win_installed ())
382          if (stristr (cmdline, "keymanager"))          load_gpg_env (); /* XXX: check return code. */
383              dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_KEYMISC,  
384                              GetDesktopWindow(), keymanager_dlg_proc, NULL,      rc = gnupg_check_homedir ();
385                              _("Key Manager"), IDS_WINPT_KEYMISC);        if (rc) {
386          else {          log_box (_("WinPT Error"), MB_ERR,
387              gpg_card_t crd = gpg_card_load ();                   _("GPG home directory is not set correctly.\n"
388              if (crd)                     "Please check the GPG registry settings:\n%s."),
389                  dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_CARD_EDIT,                   winpt_strerror (rc));
390                                    GetDesktopWindow(), card_edit_dlg_proc,          s = get_fileopen_dlg (GetActiveWindow (),
391                                    (LPARAM)crd, _("Card Manager"),                                _("Select GPG Public Keyring"),
392                                    IDS_WINPT_CARD_EDIT);                                _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),
393              gpg_card_release (crd);                                NULL);
394          }          if (s != NULL) {
395          keycache_release (0);              size_t n;
396          free_gnupg_table ();              char *p = strrchr (s, '\\');
397          return 0;              if (!p)
398      }                  BUG (0);
399                n = p - s;
400      CreateMutex (NULL, TRUE, PGM_NAME);              if (n) {
401      if (GetLastError () == ERROR_ALREADY_EXISTS) {                  char *file = new char[n+1];
402          free_gnupg_table ();                  if (!file)
403          return 0;                      BUG (NULL);
404      }                  memset (file, 0, n);
405                    memcpy (file, s, n);
406      if (cmdline) {                  file[n] = '\0';        
407          if (stristr (cmdline, "--enable-debug") || stristr (cmdline, "--debug")) {                  set_reg_entry_gpg ("HomeDir", file);
408              gpg_set_debug_mode (1);                  free_if_alloc (file);
409              winpt_debug_msg ();                  gnupg_check_homedir (); /* change gpgProgram if needed */
410              debug = 1;              }
411          }          }
412      }          else {
413                msg_box (NULL, _("GPG home directory could not be determited."),
414      wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));                       _("WinPT Error"), MB_ERR);
415      rc = RegisterClass (&wc);              goto start;
416      if (rc == FALSE) {          }
417          msg_box (NULL, _("Could not register window class"), _("WinPT Error"), MB_ERR);      }
418          free_gnupg_table ();  
419          return 0;      rc = check_gnupg_prog ();
420      }      if (rc) {
421            if (msg_box (NULL, _("Could not find the GPG binary (gpg.exe).\n"
422      hwnd = CreateWindow (PGM_NAME,                               "Do you want to start the GPG preferences to "
423                           PGM_NAME,                               "correct  this problem?"), _("WinPT Error"),
424                           0, 0, 0, 0, 0,                               MB_INFO|MB_YESNO) == IDYES)
425                           NULL,              start_gpgprefs = 1;
426                           NULL,          else {
427                           hinst,              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
428                           NULL);              return 0;
429      if (hwnd == NULL) {          }
430          msg_box (NULL, _("Could not create window"), _("WinPT Error"), MB_ERR);      }
431          free_gnupg_table ();  
432          return 0;      rc = gnupg_access_files ();
433      }      if (!start_gpgprefs && rc) {
434      glob_hwnd = hwnd;          if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS) {
435      UpdateWindow (hwnd);              ec = msg_box (NULL,
436                    _("Could not access and/or find the public and secret keyring.\n"
437      if (!first_start && !start_gpgprefs) {                    "If this is an accident, quit the program and fix it.\n\n"
438          gnupg_backup_options ();                            "Continue if you want that WinPT offers you more choices.\n"),
439          rc = check_crypto_engine ();                    "WinPT", MB_INFO|MB_YESNO);
440          if (rc) {              if (ec == IDYES)
441              DestroyWindow (hwnd);                  first_start = 1;
442              free_gnupg_table ();          }
443              return 0;          if (!first_start) {
444          }              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
445      }              return 0;
446                }
447      if (start_gpgprefs) {      }
448          char *ring;  
449          size_t size = 0;      if (!first_start) {
450          DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,          rc = gpg_check_permissions (1);
451                          gpgprefs_dlg_proc, NULL);          if (rc && rc == 2)
452          ring = get_gnupg_keyring (0, !NO_STRICT);              gpg_read_only = 1;
453          if (gnupg_access_keyring (0) == -1 && get_file_size (ring) == 0)          else if (rc)
454              first_start = 1; /* The keyring is empty! */              return 0;
455          free_if_alloc (ring);      }
456      }      
457        init_gnupg_table ();
458      if (first_start) {  
459          struct first_start_s fs;      if (fm_parse_command_line (cmdline) > 0) {
460          struct genkey_s c;          free_gnupg_table ();
461          HWND h;          return 0;
462  start:      }
463          h = GetDesktopWindow ();  
464          DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, h,      if (cmdline && stristr (cmdline, "--wipe-freespace")) {
465                              gpgprefs_dlg_proc, NULL);          dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_SPACE_SECDEL,
466          DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_FIRST, h,                              GetDesktopWindow(), space_wipefrees_dlg_proc, 0,
467                          first_run_dlg_proc, (LPARAM)&fs);                              _("Wipe Free Space"), IDS_WINPT_SPACE_SECDEL);
468          switch (fs.choice) {          free_gnupg_table ();
469          case SETUP_KEYGEN:          return 0;
470              c.interactive = 1;      }
471              c.first_start = 1;  
472              rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYWIZARD,      load_keyserver_conf (cmdline? 1 : 0);
473                                   h, keygen_wizard_dlg_proc, (LPARAM)&c);  
474              if (!rc)      if (cmdline && (stristr (cmdline, "--keymanager")
475                  goto start;                  || stristr (cmdline, "--cardmanager"))) {
476              break;          /* If an instance of WinPT is running, just send the command
477               to open the key manager. Otherwise start a new instance.
478          case SETUP_IMPORT:           */
479              rc = gnupg_copy_keyrings ();          HWND tray = FindWindow ("WinPT", "WinPT");
480              if (rc) {          if (stristr (cmdline, "keymanager"))
481                  msg_box (hwnd, winpt_strerror (rc), _("WinPT Error"), MB_ERR);              start_manager = ID_WINPT_KEY;
482                  goto start;          else
483              }              start_manager = ID_WINPT_CARD;
484              break;          if (tray != NULL) {
485                PostMessage (tray, WM_COMMAND, start_manager, 0);
486          case -1:              free_gnupg_table ();
487              DestroyWindow (hwnd);              return 0;
488              free_gnupg_table ();          }
489              return 0;      }
490          }  
491          update_keycache (hwnd);      /* If we found another WinPT instance, just quit to avoid it
492          check_crypto_engine ();         will be executed twice. */
493      }      if (winpt_inst_found) {
494      else {          log_debug ("%s", "WinMain: WinPT is already running.");
495          gpg_keycache_t c;          free_gnupg_table ();
496          update_keycache (hwnd);          return 0;
497          c = keycache_get_ctx (1);      }
498          if (!c || !gpg_keycache_get_size (c)) {  
499              gnupg_display_error ();      if (cmdline) {
500              msg_box (hwnd, _("The keycache was not initialized or is empty.\n"          if (stristr (cmdline, "--enable-debug") ||
501                               "Please check your GPG config (keyrings, pathes...)"),              stristr (cmdline, "--debug")) {
502                               _("WinPT Error"), MB_ERR);              gpg_set_debug_mode (1);
503              ec = msg_box (NULL, _("It seems that GPG is not set properly.\n"              winpt_debug_msg ();
504                                    "Do you want to start the GPG preferences dialog?"),              debug = 1;
505                              "WinPT", MB_INFO|MB_YESNO);          }
506              if (ec == IDYES) {      }
507                  DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,  
508                                  gpgprefs_dlg_proc, NULL);      wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));
509                  update_keycache (hwnd);      rc = RegisterClass (&wc);
510              }      if (rc == FALSE) {
511              else {          msg_box (NULL, _("Could not register window class"),
512                  DestroyWindow (hwnd);                   _("WinPT Error"), MB_ERR);
513                  free_gnupg_table ();          free_gnupg_table ();
514                  return 0;          return 0;
515              }      }
516          }  
517          if (check_default_key (c)) {      hwnd = CreateWindow (PGM_NAME,
518              char * p = get_gnupg_default_key ();                           PGM_NAME,
519              log_box (_("WinPT Error"), MB_ERR,                           0, 0, 0, 0, 0,
520                       _("Default key from the GPG options file could not be found.\n"                           NULL,
521                         "Please check your gpg.conf (options) to correct this:\n\n"                           NULL,
522                         "%s: public key not found."), p? p : "[null]");                           hinst,
523              free_if_alloc (p);                           NULL);
524              DestroyWindow (hwnd);      if (hwnd == NULL) {
525              free_gnupg_table ();          msg_box (NULL, _("Could not create window"), _("WinPT Error"), MB_ERR);
526              return 0;          free_gnupg_table ();
527          }          return 0;
528          if (count_insecure_elgkeys ())      }
529              DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_ELGWARN, glob_hwnd,      glob_hwnd = hwnd;
530                              elgamal_warn_dlg_proc, NULL);      UpdateWindow (hwnd);
531      }  
532        if (!first_start && !start_gpgprefs) {
533      accel_tab = LoadAccelerators (glob_hinst, (LPCTSTR)IDR_WINPT_ACCELERATOR);          gnupg_backup_options ();        
534      keyring_check_last_access (); /* init */          if (!check_crypto_engine ()) {
535      while (GetMessage (&msg, hwnd, 0, 0)) {              DestroyWindow (hwnd);
536          if (!TranslateAccelerator (msg.hwnd, accel_tab, &msg)) {              free_gnupg_table ();
537              TranslateMessage (&msg);              return 0;
538              DispatchMessage (&msg);          }
539          }      }
540      }      
541                if (start_gpgprefs) {
542      return 0;          char *ring;
543  } /* WinMain */          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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