/[winpt]/trunk/Src/WinPT.cpp
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revision 23 by twoaday, Fri Sep 30 10:10:16 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  /* Internal IPC */  HWND glob_hwnd;         /* global window handle for the dialogs */
49  int start_keymanager = 0;  HWND activ_hwnd;
50    LOCK mo_file;
51  static void  int scard_support = 0;
52  update_keycache (HWND hwnd)  int debug = 0;
53  {  int mobile = 0;
54      refresh_cache_s rcs = {0};  int gpg_read_only = 0;
55      rcs.kr_reload = 0;  char gpgver[3];
56      rcs.kr_update = 1;  
57      rcs.tr_update = 1;  
58      DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYCACHE, hwnd,  /* Load the key cache and rebuild the signature cache. */
59                      keycache_dlg_proc, (LPARAM)&rcs);  static void
60  } /* update_keycache */  update_keycache (HWND hwnd)
61    {
62        refresh_cache_s rcs = {0};
63  static char *      rcs.kr_reload = 0;
64  get_gettext_lang (void)      rcs.kr_update = 1;
65  {          rcs.tr_update = 1;
66      char * fname;      DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYCACHE, hwnd,
67      fname = get_reg_entry_mo ();                      keycache_dlg_proc, (LPARAM)&rcs);
68      if (!fname)  }
69          return NULL;  
70      return fname;  
71  } /* get_gettext_lang */  /* Set GPGME debug mode. If @val is 0, the debug mode is disabled. */
72    void
73    gpg_set_debug_mode (int val)
74  static void  {      
75  load_gettext (void)      if (val)
76  {          putenv ("GPGME_DEBUG=5:gpgme.dbg");
77      char * nls = NULL;      else
78      char * file = NULL;          putenv ("GPGME_DEBUG=");
79    }
80      nls = get_gettext_lang ();  
81      if (nls) {  
82          set_gettext_file ("winpt", nls);  /* Return the name of the gettext language file. */
83          file = make_filename (nls, "winpt", "mo");  static char*
84          if (!file_exist_check (nls) && init_file_lock (&mo_file, file))  {  get_gettext_lang (void)
85              msg_box (NULL, _("Could not initizalize file lock.\n"  {    
86                               "Native Language Support"),      char *fname;
87                       _("WinPT Error"), MB_ERR);      fname = get_reg_entry_mo ();
88          }      if (!fname)
89          free_if_alloc (nls);          return NULL;
90          free_if_alloc (file);      return fname;
91      }  }
92  } /* load_gettext */  
93    
94    /* Initialize the gettext sub system. */
95  /* check if the default key from the gpg.conf file is available in the  static void
96     keyring. if not, bail out because encryption won't work properly then. */  load_gettext (int prev_inst)
97  static int  {
98  check_default_key (gpgme_keycache_t kc)      char *nls = NULL;
99  {      char *file = NULL;
100      gpgme_key_t key;  
101      gpgme_error_t err = GPG_ERR_NO_ERROR;      nls = get_gettext_lang ();
102      char * defkey;      if (nls) {
103            set_gettext_file ("winpt", nls);
104      defkey = get_gnupg_default_key ();          file = make_filename (nls, "winpt", "mo");
105      if (defkey)          if (!file_exist_check (nls) && init_file_lock (&mo_file, file))  {
106          err = gpgme_keycache_find_key (kc, defkey, 0, &key);              if (!prev_inst)
107      free_if_alloc (defkey);                  msg_box (NULL, _("Could not initizalize file lock.\n"
108      return err? -1 : 0;                                   "Native Language Support"),
109  } /* check_default_key */                           _("WinPT Error"), MB_ERR);
110            }
111            free_if_alloc (nls);
112  /* Return the WinPT program file name (with full pathname). */          free_if_alloc (file);
113  static const char *      }
114  get_prog_part (const char * fname, int use_cwd)  }
115  {  
116      static char program[1024];  
117      char currdir[256], * cmd = NULL;  /* Load the GPG environment. On the first start, some
118      int j;     checks are performed to find out in what state GPG is.
119               Return value: 0  everything OK.
120      memset (currdir, 0, DIM (currdir));                   >0  fatal error.
121      memset (program, 0, DIM (program));                   -1 public keyring is empty or does not exist. */
122            static int
123      if (use_cwd) {  load_gpg_env (void)
124          GetCurrentDirectory (DIM (currdir)-1, currdir);  {
125          _snprintf (program, DIM (program)-1, "%s\\%s", currdir, fname);      SECURITY_ATTRIBUTES sec_attr;
126      }      char *p;
127      else {      char *pkr;
128          cmd = GetCommandLine ();  
129          if (cmd == NULL)      p = get_reg_entry_gpg4win ("gpg.exe");
130              return NULL;      if (!p)
131          strncpy (currdir, cmd, 255);          return (1);
132          j = strlen (currdir);      if (file_exist_check (p)) {
133          while (j--) {          free_if_alloc (p);
134              if (currdir[j] == '\\')          return (1);
135                  break;                }
136          }      free_if_alloc (p);
137          currdir[j] = 0;      p = multi_gnupg_path (0);
138          _snprintf (program, DIM (program)-1, "%s\\%s", currdir + 1, fname);      if (p && dir_exist_check (p)) {
139      }          memset (&sec_attr, 0, sizeof (sec_attr));
140      return program;          sec_attr.nLength = sizeof (sec_attr);
141  } /* get_prog_part */          if (!CreateDirectory (p, &sec_attr)) {
142                msg_box (NULL, _("Could not create GPG home directory"),
143                         _("WinPT Error"), MB_ERR);
144  static int              free_if_alloc (p);
145  check_crypto_engine (void)              return (2);
146  {          }
147      int ma=1, mi=4, pa=0; /* GPG 1.4.0 */      }
148      int rc;      pkr = make_filename (p, "pubring", "gpg");
149        free_if_alloc (p);
150      rc = check_gnupg_engine (&ma, &mi, &pa);      if (!pkr)
151      if (rc == -1) {          return -1;
152          msg_box (NULL, _("Could not read GnuPG version."), _("WinPT Error"), MB_ERR);      if (get_file_size (pkr) == 0) {
153          return rc;          free_if_alloc (pkr);
154      }          return -1;
155      else if (rc) {      }
156          log_box (_("WinPT Error"), MB_ERR,      return 0;
157                   _("Sorry, you need a newer GPG version.\n"  }
158                     "GPG version %d.%d.%d required GPG version 1.4.0"),  
159                     ma, mi, pa);  /* 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      /* We enable smartcard support for GPG: 1.9.x or >= 1.4.0 */  check_default_key (gpg_keycache_t kc)
163      if (ma >= 1 && mi >= 4)  {
164          scard_support = 1;      gpgme_key_t key;
165        gpgme_error_t err = GPG_ERR_NO_ERROR;
166      gpgver[0] = ma;      char *defkey;
167      gpgver[1] = mi;  
168      gpgver[2] = pa;      defkey = get_gnupg_default_key ();
169      return rc;      if (defkey)
170  } /* check_crypto_engine */          err = gpg_keycache_find_key (kc, defkey, 0, &key);
171        else
172            msg_box (NULL, _("No useable secret key found."),
173  static int                   _("WinPT Error"), MB_ERR);
174  load_keyserver_conf (int quiet)      free_if_alloc (defkey);
175  {      return err? -1 : 0;
176      const char * t;  }
177      int rc;  
178    
179      if (reg_prefs.kserv_conf)  /* Return the WinPT program file name (with full pathname). */
180          t = reg_prefs.kserv_conf;  static const char*
181      else if (!file_exist_check (get_prog_part ("keyserver.conf", 0)))  get_prog_part (const char * fname, int use_cwd)
182          t = get_prog_part ("keyserver.conf", 0);  {
183      else      static char program[512];
184          t = "keyserver.conf";      char currdir[256];
185      rc = kserver_load_conf (t);      char *cmd = NULL;
186      if (rc && !quiet)      int j;
187          msg_box (NULL, winpt_strerror (rc), _("Keyserver"), MB_ERR);          
188      return rc;      memset (currdir, 0, DIM (currdir));
189  }      memset (program, 0, DIM (program));
190            
191        if (use_cwd) {
192  static void          GetCurrentDirectory (DIM (currdir)-1, currdir);
193  enable_mobile_mode (void)          _snprintf (program, DIM (program)-1, "%s\\%s", currdir, fname);
194  {      }
195      memset (&reg_prefs, 0, sizeof (reg_prefs));      else {
196      reg_prefs.always_trust = 0;          cmd = GetCommandLine ();
197      reg_prefs.auto_backup = 0;          if (cmd == NULL)
198      reg_prefs.cache_time = 0;              return NULL;
199      reg_prefs.expert = 0;          strncpy (currdir, cmd, sizeof (currdir)-1);
200      reg_prefs.keylist_mode = 1;          j = strlen (currdir);
201      reg_prefs.kserv_conf = m_strdup ("keyserver.conf");          while (j--) {
202      reg_prefs.no_zip_mmedia = 1;              if (currdir[j] == '\\')
203      reg_prefs.use_tmpfiles = 1;                  break;
204      reg_prefs.word_wrap = 80;          }
205      reg_prefs.use_viewer = 0; /* XXX */          currdir[j] = 0;
206  }          _snprintf (program, DIM (program)-1, "%s\\%s", currdir + 1, fname);
207        }
208  char* get_subkey_fingerprint (gpgme_ctx_t ctx, const char *keyid);      return program;
209    }
210  int WINAPI  
211  #ifndef WINPT_IPC  
212  WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)  /* Check that the underlying crypto engine fullfills the minimal
213  #else     requirements so all commands work properly. */
214  win_main (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)  static bool
215  #endif  check_crypto_engine (void)
216  {  {
217      WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};      int ma=1, mi=4, pa=2; /* GPG 1.4.2 */
218      HACCEL accel_tab;      int rc;
219      int rc, ec, created = 0, use_cwd = 0, nfiles = 0;  
220      int first_start = 0, start_gpgprefs = 0;      rc = check_gnupg_engine (&ma, &mi, &pa);
221      const char * s;      if (rc == -1) {
222      MSG msg;          msg_box (NULL, _("Could not read GnuPG version."),
223      HWND hwnd = NULL;                   _("WinPT Error"), MB_ERR);
224            return false;
225      glob_hinst = hinst;      }
226            else if (rc) {
227      #ifdef _DEBUG          log_box (_("WinPT Error"), MB_ERR,
228      gpgme_set_debug_mode (1);                   _("Sorry, you need a newer GPG version.\n"
229      #endif                     "GPG version %d.%d.%d required GPG version "MIN_GPG_VER),
230                       ma, mi, pa);
231      s = PTD_get_version ();          return false;
232      if (strcmp (s, "0.8.0")) {      }
233          log_box (_("Privacy Tray Dynamic (PTD)"), MB_ERR,      /* We enable smartcard support for GPG: >= 2 or >= 1.4.3 */
234                   _("Please update your PTD.dll to the newest version, "      if (ma > 1 || pa >= 3)    
235                     "the version (%s) you use is too old."), s);          scard_support = 1;
236          return 0;  
237      }      gpgver[0] = ma;
238        gpgver[1] = mi;
239      if (gpg_md_selftest ()) {      gpgver[2] = pa;
240          msg_box (NULL, _("Cryptographic selftest failed."),      return true;
241                   _("WinPT Error"), MB_ERR);  }
242          return 0;  
243      }  
244    /* Try to load the keyserver config file. If @quiet is 1
245      if (cmdline && stristr (cmdline, "--mobile")) {     do not show any errors. */
246          msg_box (NULL, "WARNING: mobile modus is not fully implemented yet!",  static int
247                   "WinPT", MB_INFO);  load_keyserver_conf (int quiet)
248          mobile = 1;  {
249      }      const char *t;
250        int rc;
251      set_default_kserver ();  
252        if (reg_prefs.kserv_conf)
253      if (!mobile) {          t = reg_prefs.kserv_conf;
254          regist_inst_gnupg (1);      else if (!file_exist_check (get_prog_part ("keyserver.conf", 0)))
255          regist_inst_winpt (1, &created);          t = get_prog_part ("keyserver.conf", 0);
256      }      else
257      else {          t = "keyserver.conf";
258          enable_mobile_mode ();      rc = kserver_load_conf (t);
259          /* XXX: ask for GPG path */      if (rc && !quiet)
260          created = 1; /* Disable registry writing */          msg_box (NULL, winpt_strerror (rc), _("Keyserver"), MB_ERR);
261      }      return rc;
262    }
263      if (!created) {  
264          memset (&reg_prefs, 0, sizeof (reg_prefs));  
265          reg_prefs.use_tmpfiles = 1; /* default */  /* Enable the mobility mode. */
266          reg_prefs.fm.progress = 0; /* XXX: fix the bug and enable it again */  static void
267          get_reg_winpt_prefs (&reg_prefs);  enable_mobile_mode (void)
268          if (!reg_prefs.no_hotkeys)  {
269              hotkeys_modify ();      memset (&reg_prefs, 0, sizeof (reg_prefs));
270      }      reg_prefs.always_trust = 0;
271        reg_prefs.auto_backup = 0;
272      rc = gnupg_check_homedir ();      reg_prefs.cache_time = 0;
273      if (rc) {      reg_prefs.expert = 0;
274          log_box (_("WinPT Error"), MB_ERR,      reg_prefs.keylist_mode = 1;
275                   _("GPG home directory is not set correctly.\n"      reg_prefs.kserv_conf = m_strdup ("keyserver.conf");
276                     "Please check the GPG registry settings:\n%s."),      reg_prefs.no_zip_mmedia = 1;
277                   winpt_strerror (rc));      reg_prefs.use_tmpfiles = 1;
278          const char * s = get_filename_dlg (GetActiveWindow (), FILE_OPEN,      reg_prefs.word_wrap = 80;
279                                             _("Select GPG Public Keyring"),      reg_prefs.use_viewer = 0; /* XXX */
280                                             _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),  }
281                                             NULL);  
282          if (s != NULL) {  
283              size_t n;  /* Main entry point. */
284              char * p = strrchr (s, '\\');  int WINAPI
285              if (!p)  WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)
286                  BUG (0);  {
287              n = p - s;      WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};
288              if (n)      HACCEL accel_tab;
289              {      MSG msg;
290                  char * file = new char[n+1];      HWND hwnd = NULL;
291                  if (!file)      WORD ver[3], ptdver[4];
292                      BUG (NULL);      int rc, ec, created = 0;
293                  memset (file, 0, n);      int first_start = 0, start_gpgprefs = 0;
294                  memcpy (file, s, n);      int winpt_inst_found = 0;
295                  file[n] = '\0';              int start_manager = 0;
296                  set_reg_entry_gpg ("HomeDir", file);      const char *s;
297                  free_if_alloc (file);  
298                  gnupg_check_homedir (); /* change gpgProgram if needed */      glob_hinst = hinst;
299              }      if (cmdline && stristr (cmdline, "--stop")) {
300          }          hwnd = FindWindow ("WinPT", "WinPT");
301          else {          if (hwnd != NULL)
302              msg_box (NULL, _("GPG home directory could not be determited."),              PostMessage (hwnd, WM_DESTROY, 0, 0);
303                       _("WinPT Error"), MB_ERR);          return 0;
304              goto start;      }
305          }  
306      }      /*
307        OSVERSIONINFO osinf;
308      rc = check_gnupg_prog ();      memset (&osinf, 0, sizeof (osinf));
309      if (rc) {      if (GetVersionEx (&osinf) &&
310          if (msg_box (NULL, _("Could not find the GPG binary (gpg.exe).\n"          osinf.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS &&
311                               "Do you want to start the GPG preferences to "          osinf.dwMinorVersion == 0) {
312                               "correct  this problem?"), _("WinPT Error"),          msg_box (NULL, "WinPT propably does not work on Windows 95 without restrictions",
313                               MB_INFO|MB_YESNO) == IDYES)                   "WinPT Warning", MB_INFO);
314              start_gpgprefs = 1;      }
315          else      */
316          {  
317              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);      #ifdef _DEBUG
318              return 0;      gpg_set_debug_mode (1);
319          }      debug = 1;
320      }      #endif
321    
322      rc = gnupg_access_files ();      get_file_version ("WinPT.exe", &ver[0], &ver[1], &ver[2], &ver[3]);
323      if (!start_gpgprefs && rc)      get_file_version ("PTD.dll", &ptdver[0], &ptdver[1],
324      {                                   &ptdver[2], &ptdver[3]);
325          if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS)      /* XXX
326          {      if (ptdver[0] != ver[0] || ptdver[1] != ver[1]|| ptdver[2] != ver[2]) {
327              ec = msg_box (NULL,          log_box (_("WinPT Error"), MB_ERR,
328                  _("Could not access and/or find the public and secret keyring.\n"                   _("The PTD.dll file has a different version than WinPT.exe\n"
329                    "If this is an accident, quit the program and fix it.\n\n"                     "Please update the PTD.dll to version %d.%d.%d"),
330                    "Continue if you want that WinPT offers you more choices.\n"),                     ver[0], ver[1], ver[2]);
331                    "WinPT", MB_INFO|MB_YESNO);          return 0;
332              if (ec == IDYES)      }
333                  first_start = 1;      */
334          }  
335          if (!first_start)      if (gpg_md_selftest ()) {
336          {          msg_box (NULL, _("Cryptographic selftest failed."),
337              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);                   _("WinPT Error"), MB_ERR);
338              return 0;          return 0;
339          }      }
340      }  
341        s = gpgme_check_version (MIN_GPGME_VER);
342      if (!first_start)      if (!s || !*s) {
343      {          msg_box (NULL, _("A newer GPGME version is needed; at least "MIN_GPGME_VER),
344          rc = gpg_check_permissions (1);                   _("WinPT Error"), MB_ERR);
345          if (rc && rc == 2)          return 0;
346              gpg_read_only = 1;      }
347          else if (rc)  
348              return 0;      CreateMutex (NULL, TRUE, PGM_NAME);
349      }      if (GetLastError () == ERROR_ALREADY_EXISTS)
350            winpt_inst_found = 1;
351      load_gettext ();  
352      init_gnupg_table ();      if (cmdline && stristr (cmdline, "--mobile")) {
353            msg_box (NULL, "WARNING: mobile modus is not fully implemented yet!",
354      nfiles = fm_parse_command_line (cmdline);                   "WinPT", MB_INFO);
355      if (nfiles > 0)          mobile = 1;
356          return 0;      }
357    
358      if (cmdline && stristr (cmdline, "--wipe-freespace")) {      set_default_kserver ();
359          dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_SPACE_SECDEL,      load_gettext (winpt_inst_found);
360                              GetDesktopWindow(), space_wipefrees_dlg_proc, NULL,  
361                              _("Wipe Free Space"), IDS_WINPT_SPACE_SECDEL);      if (!mobile) {
362          free_gnupg_table ();          regist_inst_gnupg (1);
363          return 0;          regist_inst_winpt (1, &created);
364      }      }
365        else {
366      load_keyserver_conf (cmdline? 1 : 0);          enable_mobile_mode ();
367      if (start_keymanager) {          /* XXX: ask for GPG path */
368          dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_KEYMISC,          created = 1; /* Disable registry writing */
369                              GetDesktopWindow(), keymanager_dlg_proc, NULL,      }
370                              _("Key Manager"), IDS_WINPT_KEYMISC);  
371          keycache_release ();      if (!created) {
372          free_gnupg_table ();          memset (&reg_prefs, 0, sizeof (reg_prefs));
373          return 0;          reg_prefs.use_tmpfiles = 1; /* default */
374      }          reg_prefs.fm.progress = 0; /* XXX: fix the bug and enable it again */
375            get_reg_winpt_prefs (&reg_prefs);
376      if (cmdline && (stristr (cmdline, "--keymanager")          if (!reg_prefs.no_hotkeys)
377                  || stristr (cmdline, "--cardmanager"))) {              hotkeys_modify ();
378          update_keycache (GetDesktopWindow ());          gnupg_load_config ();
379          if (stristr (cmdline, "keymanager"))      }
380              dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_KEYMISC,  
381                              GetDesktopWindow(), keymanager_dlg_proc, NULL,      if (is_gpg4win_installed ())
382                              _("Key Manager"), IDS_WINPT_KEYMISC);            load_gpg_env (); /* XXX: check return code. */
383          else {  
384              gpg_card_t crd = smartcard_init ();      rc = gnupg_check_homedir ();
385              if (crd)      if (rc) {
386                  dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_CARD_EDIT,          log_box (_("WinPT Error"), MB_ERR,
387                                    GetDesktopWindow(), card_edit_dlg_proc,                   _("GPG home directory is not set correctly.\n"
388                                    (LPARAM)crd, _("Card Manager"),                     "Please check the GPG registry settings:\n%s."),
389                                    IDS_WINPT_CARD_EDIT);                   winpt_strerror (rc));
390              gpg_card_release (crd);          s = get_fileopen_dlg (GetActiveWindow (),
391          }                                _("Select GPG Public Keyring"),
392          keycache_release ();                                _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),
393          free_gnupg_table ();                                NULL);
394          return 0;          if (s != NULL) {
395      }              size_t n;
396                char *p = strrchr (s, '\\');
397      CreateMutex (NULL, TRUE, PGM_NAME);              if (!p)
398      if (GetLastError () == ERROR_ALREADY_EXISTS) {                  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      if (cmdline) {                      BUG (NULL);
404          if (stristr (cmdline, "--enable-debug") || stristr (cmdline, "--debug")) {                  memset (file, 0, n);
405              gpg_set_debug_mode (1);                  memcpy (file, s, n);
406              winpt_debug_msg ();                  file[n] = '\0';        
407              debug = 1;                  set_reg_entry_gpg ("HomeDir", file);
408          }                  free_if_alloc (file);
409      }                  gnupg_check_homedir (); /* change gpgProgram if needed */
410                }
411      wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));          }
412      rc = RegisterClass (&wc);          else {
413      if (rc == FALSE) {              msg_box (NULL, _("GPG home directory could not be determited."),
414          msg_box (NULL, _("Could not register window class"), _("WinPT Error"), MB_ERR);                       _("WinPT Error"), MB_ERR);
415          free_gnupg_table ();              goto start;
416          return 0;          }
417      }      }
418    
419      hwnd = CreateWindow (PGM_NAME,      rc = check_gnupg_prog ();
420                           PGM_NAME,      if (rc) {
421                           0, 0, 0, 0, 0,          if (msg_box (NULL, _("Could not find the GPG binary (gpg.exe).\n"
422                           NULL,                               "Do you want to start the GPG preferences to "
423                           NULL,                               "correct  this problem?"), _("WinPT Error"),
424                           hinst,                               MB_INFO|MB_YESNO) == IDYES)
425                           NULL);              start_gpgprefs = 1;
426      if (hwnd == NULL) {          else {
427          msg_box (NULL, _("Could not create window"), _("WinPT Error"), MB_ERR);              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
428          free_gnupg_table ();              return 0;
429          return 0;          }
430      }      }
431      glob_hwnd = hwnd;  
432      UpdateWindow (hwnd);      rc = gnupg_access_files ();
433        if (!start_gpgprefs && rc) {
434      if (!first_start && !start_gpgprefs) {          if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS) {
435          gnupg_backup_options ();                      ec = msg_box (NULL,
436          rc = check_crypto_engine ();                  _("Could not access and/or find the public and secret keyring.\n"
437          if (rc) {                    "If this is an accident, quit the program and fix it.\n\n"
438              DestroyWindow (hwnd);                    "Continue if you want that WinPT offers you more choices.\n"),
439              free_gnupg_table ();                    "WinPT", MB_INFO|MB_YESNO);
440              return 0;              if (ec == IDYES)
441          }                  first_start = 1;
442      }          }
443                if (!first_start) {
444      if (start_gpgprefs) {              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
445          char *ring;              return 0;
446          size_t size = 0;          }
447          DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,      }
448                          gpgprefs_dlg_proc, NULL);  
449          ring = get_gnupg_keyring (0, !NO_STRICT);      if (!first_start) {
450          if (gnupg_access_keyring (0) == -1 && get_file_size (ring) == 0)          rc = gpg_check_permissions (1);
451              first_start = 1; /* The keyring is empty! */          if (rc && rc == 2)
452          free_if_alloc (ring);              gpg_read_only = 1;
453      }          else if (rc)
454                return 0;
455      if (first_start) {      }
456          struct first_start_s fs;      
457          struct genkey_s c;      init_gnupg_table ();
458          HWND h;  
459  start:      if (fm_parse_command_line (cmdline) > 0) {
460          h = GetDesktopWindow ();          free_gnupg_table ();
461          DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, h,          return 0;
462                              gpgprefs_dlg_proc, NULL);      }
463          DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_FIRST, h,  
464                          first_run_dlg_proc, (LPARAM)&fs);      if (cmdline && stristr (cmdline, "--wipe-freespace")) {
465          switch (fs.choice) {          dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_SPACE_SECDEL,
466          case SETUP_KEYGEN:                              GetDesktopWindow(), space_wipefrees_dlg_proc, 0,
467              c.interactive = 1;                              _("Wipe Free Space"), IDS_WINPT_SPACE_SECDEL);
468              c.first_start = 1;          free_gnupg_table ();
469              rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYWIZARD,          return 0;
470                                   h, keygen_wizard_dlg_proc, (LPARAM)&c);      }
471              if (!rc)  
472                  goto start;      load_keyserver_conf (cmdline? 1 : 0);
473              break;  
474        if (cmdline && (stristr (cmdline, "--keymanager")
475          case SETUP_IMPORT:                  || stristr (cmdline, "--cardmanager"))) {
476              rc = gnupg_copy_keyrings ();          /* If an instance of WinPT is running, just send the command
477              if (rc) {             to open the key manager. Otherwise start a new instance.
478                  msg_box (hwnd, winpt_strerror (rc), _("WinPT Error"), MB_ERR);           */
479                  goto start;          HWND tray = FindWindow ("WinPT", "WinPT");
480              }          if (stristr (cmdline, "keymanager"))
481              break;              start_manager = ID_WINPT_KEY;
482            else
483          case -1:              start_manager = ID_WINPT_CARD;
484              DestroyWindow (hwnd);          if (tray != NULL) {
485              free_gnupg_table ();              PostMessage (tray, WM_COMMAND, start_manager, 0);
486              return 0;              free_gnupg_table ();
487          }              return 0;
488          update_keycache (hwnd);          }
489          check_crypto_engine ();      }
490      }  
491      else {      /* If we found another WinPT instance, just quit to avoid it
492          gpgme_keycache_t c;         will be executed twice. */
493          update_keycache (hwnd);      if (winpt_inst_found) {
494          c = keycache_get_ctx (1);          log_debug ("%s", "WinMain: WinPT is already running.");
495          if (!c || !gpgme_keycache_count (c)) {          free_gnupg_table ();
496              gnupg_display_error ();          return 0;
497              msg_box (hwnd, _("The keycache was not initialized or is empty.\n"      }
498                               "Please check your GPG config (keyrings, pathes...)"),  
499                               _("WinPT Error"), MB_ERR);      if (cmdline) {
500              ec = msg_box (NULL, _("It seems that GPG is not set properly.\n"          if (stristr (cmdline, "--enable-debug") ||
501                                    "Do you want to start the GPG preferences dialog?"),              stristr (cmdline, "--debug")) {
502                              "WinPT", MB_INFO|MB_YESNO);              gpg_set_debug_mode (1);
503              if (ec == IDYES) {              winpt_debug_msg ();
504                  DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,              debug = 1;
505                                  gpgprefs_dlg_proc, NULL);          }
506                  update_keycache (hwnd);      }
507              }  
508              else {      wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));
509                  DestroyWindow (hwnd);      rc = RegisterClass (&wc);
510                  free_gnupg_table ();      if (rc == FALSE) {
511                  return 0;          msg_box (NULL, _("Could not register window class"),
512              }                   _("WinPT Error"), MB_ERR);
513          }          free_gnupg_table ();
514          if (check_default_key (c)) {          return 0;
515              char * p = get_gnupg_default_key ();      }
516              log_box (_("WinPT Error"), MB_ERR,  
517                       _("Default key from the GPG options file could not be found.\n"      hwnd = CreateWindow (PGM_NAME,
518                         "Please check your gpg.conf (options) to correct this:\n\n"                           PGM_NAME,
519                         "%s: public key not found."), p? p : "[null]");                           0, 0, 0, 0, 0,
520              free_if_alloc (p);                           NULL,
521              DestroyWindow (hwnd);                           NULL,
522              free_gnupg_table ();                           hinst,
523              return 0;                           NULL);
524          }      if (hwnd == NULL) {
525          if (count_insecure_elgkeys ())          msg_box (NULL, _("Could not create window"), _("WinPT Error"), MB_ERR);
526              DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_ELGWARN, glob_hwnd,          free_gnupg_table ();
527                              elgamal_warn_dlg_proc, NULL);          return 0;
528      }      }
529        glob_hwnd = hwnd;
530      accel_tab = LoadAccelerators (glob_hinst, (LPCTSTR)IDR_WINPT_ACCELERATOR);      UpdateWindow (hwnd);
531      keyring_check_last_access (); /* init */  
532      while (GetMessage (&msg, hwnd, 0, 0)) {      if (!first_start && !start_gpgprefs) {
533          if (!TranslateAccelerator (msg.hwnd, accel_tab, &msg)) {          gnupg_backup_options ();        
534              TranslateMessage (&msg);          if (!check_crypto_engine ()) {
535              DispatchMessage (&msg);              DestroyWindow (hwnd);
536          }              free_gnupg_table ();
537      }              return 0;
538                    }
539      return 0;      }
540  } /* WinMain */      
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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