/[winpt]/trunk/Src/WinPT.cpp
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revision 25 by twoaday, Wed Oct 12 10:04:26 2005 UTC revision 355 by twoaday, Sat Dec 3 18:59:01 2011 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) 2000-2009 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  #ifdef HAVE_CONFIG_H
17   * along with WinPT; if not, write to the Free Software Foundation,  #include <config.h>
18   * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA  #endif
19   */  
20  #include <windows.h>  #include <windows.h>
21    #include <shlobj.h>
22  #include "../resource.h"  
23  #include "wptTypes.h"  #include "resource.h"
24  #include "wptW32API.h"  #include "wptTypes.h"
25  #include "wptVersion.h"  #include "wptW32API.h"
26  #include "wptErrors.h"  #include "wptVersion.h"
27  #include "wptGPG.h"  #include "wptErrors.h"
28  #include "wptRegistry.h"  #include "wptGPG.h"
29  #include "wptCommonCtl.h"  #include "wptRegistry.h"
30  #include "wptDlgs.h"  #include "wptCommonCtl.h"
31  #include "wptNLS.h"  #include "wptDlgs.h"
32  #include "wptKeyserver.h"  #include "wptNLS.h"
33  #include "wptCard.h"  #include "wptKeyserver.h"
34  #include "wptFileManager.h"  #include "wptCard.h"
35  #include "wptContext.h"  #include "wptFileManager.h"
36  #include "wptCardEdit.h"  #include "wptContext.h"
37    #include "wptCardEdit.h"
38  HINSTANCE glob_hinst; /* global instance for the dialogs */  #include "wptCrypto.h"
39  HWND glob_hwnd; /* global window handle for the dialogs */  #include "wptUTF8.h"
40  HWND activ_hwnd;  
41  LOCK mo_file;  void remove_crit_file_attrs (const char *fname, int force);
42  int scard_support = 0;  
43  int debug = 0;  /* Global variables. */
44  int mobile = 0;  HINSTANCE glob_hinst;   /* global instance for the dialogs */
45  int gpg_read_only = 0;  HWND glob_hwnd;         /* global window handle for the dialogs */
46  char gpgver[3];  int scard_support = 0;
47    int debug = 0;
48  static void  int gpg_read_only = 0;
49  update_keycache (HWND hwnd)  char gpgver[3];
50  {  /* End */
51      refresh_cache_s rcs = {0};  
52      rcs.kr_reload = 0;  
53      rcs.kr_update = 1;  /* Retrieve the product verion of the given file @fname.
54      rcs.tr_update = 1;     Format: MAJOR.MINOR.PATCH1.PATCH2
55      DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYCACHE, hwnd,     Return value: 0 on success. */
56                      keycache_dlg_proc, (LPARAM)&rcs);  int
57  } /* update_keycache */  get_file_version (const char *fname, WORD *major, WORD *minor, WORD *patch1, WORD *patch2)
58    {
59        VS_FIXEDFILEINFO *inf;
60  /* Set GPGME debug mode. If @val is 0, the debug mode is disabled. */      char file[MAX_PATH+1] = {0};
61  void      LPVOID buf, data;
62  gpg_set_debug_mode (int val)      DWORD size;
63  {            UINT qlen;
64      if (val)      int err = 0;
65          putenv ("GPGME_DEBUG=5:gpgme.dbg");  
66      else      strncpy (file, fname, MAX_PATH);
67          putenv ("GPGME_DEBUG=");      size = GetFileVersionInfoSize (file, NULL);
68  }      if (!size)
69            return -1;
70  static char *      
71  get_gettext_lang (void)      buf = (LPVOID)new char[size];
72  {          if (!buf)
73      char * fname;          BUG (NULL);
74      fname = get_reg_entry_mo ();      if (!GetFileVersionInfo (file, 0, size, buf)) {
75      if (!fname)          err = -1;
76          return NULL;          goto fail;
77      return fname;      }
78  } /* get_gettext_lang */  
79        qlen = 0;
80        VerQueryValue (buf, (char*)"\\", &data, &qlen);
81  static void      if (!qlen) {
82  load_gettext (void)          err = -1;
83  {          goto fail;
84      char *nls = NULL;      }
85      char *file = NULL;      
86        inf = (VS_FIXEDFILEINFO*)data;
87      nls = get_gettext_lang ();      *major = HIWORD (inf->dwProductVersionMS);
88      if (nls) {      *minor = LOWORD (inf->dwProductVersionMS);
89          set_gettext_file ("winpt", nls);      *patch1 = HIWORD (inf->dwProductVersionLS);
90          file = make_filename (nls, "winpt", "mo");      *patch2 = LOWORD (inf->dwProductVersionLS);
91          if (!file_exist_check (nls) && init_file_lock (&mo_file, file))  {  
92              msg_box (NULL, _("Could not initizalize file lock.\n"  fail:
93                               "Native Language Support"),      delete [](char*)buf;
94                       _("WinPT Error"), MB_ERR);      return err;
95          }  }
96          free_if_alloc (nls);  
97          free_if_alloc (file);  
98      }  /* Load the key cache and rebuild the signature cache. */
99  } /* load_gettext */  int
100    update_keycache (HWND hwnd)
101    {
102  /* check if the default key from the gpg.conf file is available in the      int err;
103     keyring. if not, bail out because encryption won't work properly then. */      refresh_cache_s rcs;
104  static int  
105  check_default_key (gpg_keycache_t kc)      /* no need to rebuild the sig cache each time. */
106  {      memset (&rcs, 0, sizeof (rcs));
107      gpgme_key_t key;      rcs.kring_update = 1;
108      gpgme_error_t err = GPG_ERR_NO_ERROR;      err = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYCACHE, hwnd,
109      char * defkey;                      keycache_dlg_proc, (LPARAM)&rcs);
110        if (err) {
111      defkey = get_gnupg_default_key ();          char *cfgf = get_gnupg_config ();
112      if (defkey)          if (cfgf && check_gnupg_options (cfgf, 0) == WPTERR_FILE_EXIST)
113          err = gpg_keycache_find_key (kc, defkey, 0, &key);              msg_box (GetDesktopWindow (),
114      free_if_alloc (defkey);                       _("The gpg.conf contains at least one argument which points to a non-existing file."), "WinPT", MB_ERR);
115      return err? -1 : 0;          free_if_alloc (cfgf);
116  } /* check_default_key */          return -1;
117        }
118        return 0;
119  /* Return the WinPT program file name (with full pathname). */  }
120  static const char *  
121  get_prog_part (const char * fname, int use_cwd)  
122  {  /* Set GPGME debug mode. If @val is 0, the debug mode is disabled. */
123      static char program[1024];  void
124      char currdir[256], * cmd = NULL;  gpg_set_debug_mode (int val)
125      int j;  {
126                static char buf[MAX_PATH+1];
127      memset (currdir, 0, DIM (currdir));      char tmp[128];
128      memset (program, 0, DIM (program));      
129                /* XXX: no gpgme.dbg is created. */
130      if (use_cwd) {      if (val > 0) {
131          GetCurrentDirectory (DIM (currdir)-1, currdir);          GetTempPath (DIM (tmp)-1, tmp);
132          _snprintf (program, DIM (program)-1, "%s\\%s", currdir, fname);          _snprintf (buf, DIM (buf)-1, "GPGME_DEBUG=5:%sgpgme.dbg", tmp);
133      }          putenv (buf);
134      else {      }
135          cmd = GetCommandLine ();      else
136          if (cmd == NULL)          putenv ("GPGME_DEBUG=");
137              return NULL;  }
138          strncpy (currdir, cmd, 255);  
139          j = strlen (currdir);  
140          while (j--) {  /* Return true if the GPG environment is useable. */
141              if (currdir[j] == '\\')  static bool
142                  break;            gpg_prefs_ok (void)
143          }  {
144          currdir[j] = 0;      char *p = get_reg_entry_gpg4win ("gpg.exe");
145          _snprintf (program, DIM (program)-1, "%s\\%s", currdir + 1, fname);      if (!p || file_exist_check (p) != 0) {
146      }          free_if_alloc (p);
147      return program;          p = get_reg_entry_gpg ("gpgProgram");
148  } /* get_prog_part */          if (!p || file_exist_check (p) != 0) {
149                free_if_alloc (p);
150                log_debug ("gpg_prefs_ok: could not locate gpg.exe");
151  static int              return false;
152  check_crypto_engine (void)          }
153  {      }
154      int ma=1, mi=4, pa=0; /* GPG 1.4.0 */      free_if_alloc (p);
155      int rc;      p = get_reg_entry_gpg4win (NULL);
156        if (!p || dir_exist_check (p) != 0) {
157      rc = check_gnupg_engine (&ma, &mi, &pa);          free_if_alloc (p);
158      if (rc == -1) {          p = get_reg_entry_gpg ("HomeDir");
159          msg_box (NULL, _("Could not read GnuPG version."), _("WinPT Error"), MB_ERR);          if (!p || dir_exist_check (p) != 0) {
160          return rc;              free_if_alloc (p);
161      }              log_debug ("gpg_prefs_ok: could not determine home directory");
162      else if (rc) {              return false;
163          log_box (_("WinPT Error"), MB_ERR,          }
164                   _("Sorry, you need a newer GPG version.\n"      }
165                     "GPG version %d.%d.%d required GPG version 1.4.0"),      free_if_alloc (p);
166                     ma, mi, pa);      return true;
167          return rc;  }
168      }  
169      /* We enable smartcard support for GPG: 1.9.x or >= 1.4.0 */  
170      if (ma >= 1 && mi >= 4)  /* Check gpg files if they are read-only and ask the user
171          scard_support = 1;     if this should be corrected. */
172    static void
173      gpgver[0] = ma;  check_readonly_attr (const char *homedir)
174      gpgver[1] = mi;  {
175      gpgver[2] = pa;      const char *files[] = {"pubring.gpg", "secring.gpg", "trustdb.gpg", NULL};
176      return rc;  
177  } /* check_crypto_engine */      for (int i=0; files[i] != NULL; i++) {
178            char *file = make_filename (homedir, files[i], NULL);
179            remove_crit_file_attrs (file, 0);
180  static int          free_if_alloc (file);
181  load_keyserver_conf (int quiet)      }
182  {  }
183      const char * t;  
184      int rc;  
185    /* Load the GPG environment. On the first start, some
186      if (reg_prefs.kserv_conf)     checks are performed to find out in what state GPG is.
187          t = reg_prefs.kserv_conf;     Return value: 0  everything OK.
188      else if (!file_exist_check (get_prog_part ("keyserver.conf", 0)))                   >0  fatal error.
189          t = get_prog_part ("keyserver.conf", 0);                   -1 public keyring is empty or does not exist. */
190      else  static int
191          t = "keyserver.conf";  load_gpg_env (void)
192      rc = kserver_load_conf (t);  {
193      if (rc && !quiet)      SECURITY_ATTRIBUTES sec_attr;
194          msg_box (NULL, winpt_strerror (rc), _("Keyserver"), MB_ERR);      char *p;
195      return rc;      char *pkr;
196  }      int err = 0;
197    
198        p = get_reg_entry_gpg4win ("gpg.exe");
199  static void      if (!p)
200  enable_mobile_mode (void)          return (1);
201  {      if (file_exist_check (p)) {
202      memset (&reg_prefs, 0, sizeof (reg_prefs));          free_if_alloc (p);
203      reg_prefs.always_trust = 0;          return (1);
204      reg_prefs.auto_backup = 0;      }
205      reg_prefs.cache_time = 0;      free_if_alloc (p);
206      reg_prefs.expert = 0;  
207      reg_prefs.keylist_mode = 1;      p = get_reg_entry_gpg ("HomeDir");
208      reg_prefs.kserv_conf = m_strdup ("keyserver.conf");      if (!p || dir_exist_check (p) != 0) {
209      reg_prefs.no_zip_mmedia = 1;          free_if_alloc (p);
210      reg_prefs.use_tmpfiles = 1;          p = multi_gnupg_path (0);
211      reg_prefs.word_wrap = 80;      }
212      reg_prefs.use_viewer = 0; /* XXX */      if (p && dir_exist_check (p)) {
213  }          memset (&sec_attr, 0, sizeof (sec_attr));
214            sec_attr.nLength = sizeof (sec_attr);
215  char* get_subkey_fingerprint (gpgme_ctx_t ctx, const char *keyid);          if (!CreateDirectory (p, &sec_attr)) {
216                msg_box (GetDesktopWindow (),
217  int WINAPI                       _("Could not create GPG home directory"),
218                         _("WinPT Error"), MB_ERR);
219  WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)              free_if_alloc (p);
220  {              return (2);
221      WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};          }
222      HACCEL accel_tab;      }
223      int rc, ec, created = 0, use_cwd = 0, nfiles = 0;      check_readonly_attr (p);
224      int first_start = 0, start_gpgprefs = 0;      pkr = make_filename (p, "pubring", "gpg");
225      const char * s;      free_if_alloc (p);
226      MSG msg;      if (get_file_size (pkr) == 0)
227      HWND hwnd = NULL;          err = -1;
228        free_if_alloc (pkr);
229      glob_hinst = hinst;      return err;
230    }
231      #ifdef _DEBUG  
232      gpg_set_debug_mode (1);  
233      debug = 1;  /* check if the default key from the gpg.conf file is available in the
234      #endif     keyring. if not, bail out because encryption won't work properly then. */
235    static int
236      s = PTD_get_version ();  check_default_key (void)
237      if (strcmp (s, "0.8.0")) {  {
238          log_box (_("Privacy Tray Dynamic (PTD)"), MB_ERR,      gpgme_key_t key;
239                   _("Please update your PTD.dll to the newest version, "      gpgme_error_t err = gpg_error (GPG_ERR_NO_ERROR);
240                     "the version (%s) you use is too old."), s);      gpg_keycache_t kc;
241          return 0;      char *defkey;
242      }  
243        kc = keycache_get_ctx (0);
244      if (gpg_md_selftest ()) {      defkey = get_gnupg_default_key ();
245          msg_box (NULL, _("Cryptographic selftest failed."),      if (defkey != NULL) {
246                   _("WinPT Error"), MB_ERR);          err = gpg_keycache_find_key (kc, defkey, 0, &key);
247          return 0;          if (err) {
248      }              free_if_alloc (defkey);
249                return -1;
250      s = gpgme_check_version ("1.1.0");          }
251      if (!s || !*s) {      }
252          msg_box (NULL, _("A newer GPGME version is needed."), "WinPT Error", MB_ERR);      else {
253          return 0;          /* Actually this is just a warning but we still continue. */
254      }          msg_box (GetDesktopWindow (), _("No useable secret key found."),
255                     _("WinPT Warning"), MB_WARN);
256      if (cmdline && stristr (cmdline, "--mobile")) {          return 0;
257          msg_box (NULL, "WARNING: mobile modus is not fully implemented yet!",      }
258                   "WinPT", MB_INFO);  
259          mobile = 1;      /* Because the secret key listing has no information
260      }         about the validity/status, we need to check the public key. */
261        kc = keycache_get_ctx (1);
262      set_default_kserver ();      if (!gpg_keycache_find_key (kc, defkey, 0, &key) &&
263            (key->revoked || key->expired)) {
264      if (!mobile) {          msg_box (GetDesktopWindow (), _("Default secret key is unuseable"),
265          regist_inst_gnupg (1);                   _("WinPT Warning"), MB_ERR);
266          regist_inst_winpt (1, &created);          free_if_alloc (defkey);
267      }          return -1;
268      else {      }
269          enable_mobile_mode ();      free_if_alloc (defkey);
270          /* XXX: ask for GPG path */      return 0;
271          created = 1; /* Disable registry writing */  }
272      }  
273    
274      if (!created) {  /* Check that the underlying crypto engine fullfills the minimal
275          memset (&reg_prefs, 0, sizeof (reg_prefs));     requirements so all commands work properly. */
276          reg_prefs.use_tmpfiles = 1; /* default */  static bool
277          reg_prefs.fm.progress = 0; /* XXX: fix the bug and enable it again */  check_crypto_engine (void)
278          get_reg_winpt_prefs (&reg_prefs);  {
279          if (!reg_prefs.no_hotkeys)      int ma = 0, mi = 0, pa = 0;
280              hotkeys_modify ();      int rc;
281      }  
282        rc = check_gnupg_engine (NEED_GPG_VERSION, &ma, &mi, &pa);
283      rc = gnupg_check_homedir ();      if (rc == -1) {
284      if (rc) {          msg_box (GetDesktopWindow (), _("Could not read GnuPG version."),
285          log_box (_("WinPT Error"), MB_ERR,                   _("WinPT Error"), MB_ERR);
286                   _("GPG home directory is not set correctly.\n"          return false;
287                     "Please check the GPG registry settings:\n%s."),      }
288                   winpt_strerror (rc));      else if (rc) {
289          const char * s = get_fileopen_dlg (GetActiveWindow (),          log_box (_("WinPT Error"), MB_ERR,
290                                             _("Select GPG Public Keyring"),                   _("A newer GPG version is needed.\n"
291                                             _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),                     "Current GPG version %d.%d.%d, required "NEED_GPG_VERSION),
292                                             NULL);                     ma, mi, pa);
293          if (s != NULL) {          return false;
294              size_t n;      }
295              char * p = strrchr (s, '\\');      
296              if (!p)      // TODO: smart card support needs to be revamped
297                  BUG (0);      // and adjusted according to newer OpenPGP cards.
298              n = p - s;      /*
299              if (n)      if ((ma > 1 || pa >= 4) && pcsc_available ())
300              {          scard_support = 1;
301                  char * file = new char[n+1];      */
302                  if (!file)      scard_support = 0;
303                      BUG (NULL);      
304                  memset (file, 0, n);      gpgver[0] = ma;
305                  memcpy (file, s, n);      gpgver[1] = mi;
306                  file[n] = '\0';              gpgver[2] = pa;
307                  set_reg_entry_gpg ("HomeDir", file);      return true;
308                  free_if_alloc (file);  }
309                  gnupg_check_homedir (); /* change gpgProgram if needed */  
310              }  
311          }  
312          else {  /* Check if both keyrings are empty. This indicates that
313              msg_box (NULL, _("GPG home directory could not be determited."),     WinPT should offer to generate a key pair. */
314                       _("WinPT Error"), MB_ERR);  static bool
315              goto start;  check_for_empty_keyrings (bool pub_only)
316          }  {
317      }      char *p;
318        int n;
319      rc = check_gnupg_prog ();  
320      if (rc) {      n=0;
321          if (msg_box (NULL, _("Could not find the GPG binary (gpg.exe).\n"      p = get_gnupg_keyring (1, 0);
322                               "Do you want to start the GPG preferences to "      if (file_exist_check (p) == 0 && get_file_size (p) == 0)
323                               "correct  this problem?"), _("WinPT Error"),          n++;
324                               MB_INFO|MB_YESNO) == IDYES)      free_if_alloc (p);
325              start_gpgprefs = 1;      if (pub_only)
326          else          return n == 1? true : false;
327          {      p = get_gnupg_keyring (0, 0);
328              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);      if (file_exist_check (p) == 0 && get_file_size (p) == 0)
329              return 0;          n++;
330          }      free_if_alloc (p);
331      }      return n==2? true : false;
332    }
333      rc = gnupg_access_files ();  
334      if (!start_gpgprefs && rc)  
335      {  
336          if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS)  /* Display info message that WinPT is now in debug mode. */
337          {  void
338              ec = msg_box (NULL,  winpt_debug_msg (void)
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"      char output[512];
341                    "Continue if you want that WinPT offers you more choices.\n"),      char temp[MAX_PATH+1];
342                    "WinPT", MB_INFO|MB_YESNO);          
343              if (ec == IDYES)      GetTempPath (DIM (temp) -1, temp);
344                  first_start = 1;      _snprintf (output, DIM (output)-1,
345          }          "The GPGME output file is %sgpgme.dbg\n"
346          if (!first_start)          "The WinPT output file is %swinpt.log\n", temp, temp);
347          {      MessageBox (NULL, output, "WinPT now runs in DEBUG MODE", MB_INFO);
348              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);  }
349              return 0;  
350          }  
351      }  /* Search for insecure ElGamal keys and return the
352       number of founded keys. */
353      if (!first_start)  static int
354      {  count_insecure_elgkeys (void)
355          rc = gpg_check_permissions (1);  {
356          if (rc && rc == 2)      gpg_keycache_t pc;
357              gpg_read_only = 1;      gpgme_key_t key;
358          else if (rc)      int n;
359              return 0;  
360      }      n=0;
361        pc = keycache_get_ctx (1);
362      load_gettext ();      while (!gpg_keycache_next_key (pc, 0, &key)) {
363      init_gnupg_table ();          if (key->subkeys->pubkey_algo == GPGME_PK_ELG)
364                n++;
365      nfiles = fm_parse_command_line (cmdline);      }
366      if (nfiles > 0)      gpg_keycache_rewind (pc);
367          return 0;      return n;
368    }
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,  /* Return 1 if the current OS version is at least Windows XP */
372                              _("Wipe Free Space"), IDS_WINPT_SPACE_SECDEL);  static int
373          free_gnupg_table ();  check_os_version (void)
374          return 0;  {
375      }      OSVERSIONINFOA osver;    
376        memset (&osver, 0, sizeof (osver));
377      load_keyserver_conf (cmdline? 1 : 0);      osver.dwOSVersionInfoSize = sizeof (osver);
378        
379      if (cmdline && (stristr (cmdline, "--keymanager")      if (!GetVersionEx (&osver)) {
380                  || stristr (cmdline, "--cardmanager"))) {          MessageBox (NULL, _("Could not read the OS version."), _("WinPT Error"), MB_ERR);
381          update_keycache (GetDesktopWindow ());          return 0;
382          if (stristr (cmdline, "keymanager"))      }
383              dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_KEYMISC,  
384                              GetDesktopWindow(), keymanager_dlg_proc, NULL,      if (osver.dwMajorVersion < 5 ||
385                              _("Key Manager"), IDS_WINPT_KEYMISC);            (osver.dwMajorVersion == 5 && osver.dwMinorVersion == 0)) {
386          else {          MessageBox (NULL, _("WinPT requires Windows XP or higher."), _("WinPT Error"), MB_ERR);
387              gpg_card_t crd = smartcard_init ();          return 0;
388              if (crd)      }
389                  dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_CARD_EDIT,      
390                                    GetDesktopWindow(), card_edit_dlg_proc,      return 1;
391                                    (LPARAM)crd, _("Card Manager"),  }
392                                    IDS_WINPT_CARD_EDIT);      
393              gpg_card_release (crd);  /* Main entry point. */
394          }  int WINAPI
395          keycache_release (0);  WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)
396          free_gnupg_table ();  {
397          return 0;      WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};
398      }      HACCEL accel_tab;
399        MSG msg;
400      CreateMutex (NULL, TRUE, PGM_NAME);      HWND hwnd = NULL;
401      if (GetLastError () == ERROR_ALREADY_EXISTS) {      WORD ver[3], ptdver[4];
402          free_gnupg_table ();      
403          return 0;      const char *s;
404      }      int rc, ec, created = 0;
405        int first_start = 0, start_gpgprefs = 0;
406      if (cmdline) {      int winpt_inst_found = 0;
407          if (stristr (cmdline, "--enable-debug") || stristr (cmdline, "--debug")) {      int start_manager = 0;    
408              gpg_set_debug_mode (1);  
409              winpt_debug_msg ();      if (!check_os_version ())
410              debug = 1;          return 0;
411          }      
412      }      glob_hinst = hinst;
413        
414      wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));      /* Allow to shutdown the process, for instance by an installer */
415      rc = RegisterClass (&wc);      if (cmdline && stristr (cmdline, "--stop")) {
416      if (rc == FALSE) {          hwnd = FindWindow ("WinPT", "WinPT");
417          msg_box (NULL, _("Could not register window class"), _("WinPT Error"), MB_ERR);          if (hwnd != NULL)
418          free_gnupg_table ();              PostMessage (hwnd, WM_DESTROY, 0, 0);
419          return 0;          return 0;
420      }      }    
421    
422      hwnd = CreateWindow (PGM_NAME,      get_file_version ("winpt.exe", &ver[0], &ver[1], &ver[2], &ver[3]);
423                           PGM_NAME,      ec = get_file_version ("PTD.dll", &ptdver[0], &ptdver[1], &ptdver[2], &ptdver[3]);
424                           0, 0, 0, 0, 0,      if (!ec && (ptdver[0] != ver[0] || ptdver[1] != ver[1] || ptdver[2] != ver[2])) {
425                           NULL,          log_box (_("WinPT Error"), MB_ERR,
426                           NULL,                   _("The PTD.dll file has a different version than WinPT.exe\n"
427                           hinst,                     "Please update the PTD.dll to version %d.%d.%d"),
428                           NULL);                     ver[0], ver[1], ver[2]);
429      if (hwnd == NULL) {          return 0;
430          msg_box (NULL, _("Could not create window"), _("WinPT Error"), MB_ERR);      }
431          free_gnupg_table ();  
432          return 0;      s = gpgme_check_version (NEED_GPGME_VERSION);
433      }      if (!s || !*s) {
434      glob_hwnd = hwnd;          msg_box (GetDesktopWindow (),
435      UpdateWindow (hwnd);                   _("A newer GPGME version is needed; at least "NEED_GPGME_VERSION),
436                     _("WinPT Error"), MB_ERR);
437      if (!first_start && !start_gpgprefs) {          return 0;
438          gnupg_backup_options ();              }
439          rc = check_crypto_engine ();  
440          if (rc) {      CreateMutex (NULL, TRUE, PGM_NAME);
441              DestroyWindow (hwnd);      if (GetLastError () == ERROR_ALREADY_EXISTS)
442              free_gnupg_table ();          winpt_inst_found = 1;
443              return 0;      
444          }      gettext_set_user_domain ();
445      }  
446            regist_inst_gnupg (1);
447      if (start_gpgprefs) {      regist_inst_winpt (1, &created);
448          char *ring;  
449          size_t size = 0;      if (!created) {
450          DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,          memset (&reg_prefs, 0, sizeof (reg_prefs));
451                          gpgprefs_dlg_proc, NULL);          get_reg_winpt_prefs (&reg_prefs);
452          ring = get_gnupg_keyring (0, !NO_STRICT);          reg_prefs.fm.progress = 0; /* TODO: fix the bug and enable it again */
453          if (gnupg_access_keyring (0) == -1 && get_file_size (ring) == 0)          if (gnupg_load_config () == -2)
454              first_start = 1; /* The keyring is empty! */              msg_box (GetDesktopWindow (),
455          free_if_alloc (ring);                       _("The gpg.conf file contains the 'textmode' option\n"
456      }                         "which leads to broken binary output during decryption.\n"
457                           "If this is on purpose, just continue otherwise the option should be disabled."),
458      if (first_start) {                       _("WinPT Error"), MB_ERR);
459          struct first_start_s fs;      }
460          struct genkey_s c;  
461          HWND h;      if (is_gpg4win_installed ())
462  start:          load_gpg_env (); /* TODO: check return code. */
463          h = GetDesktopWindow ();  
464          DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, h,      rc = gnupg_check_homedir ();
465                              gpgprefs_dlg_proc, NULL);      if (rc) {
466          DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_FIRST, h,          char *p;
467                          first_run_dlg_proc, (LPARAM)&fs);  
468          switch (fs.choice) {          log_box (_("WinPT Error"), MB_ERR,
469          case SETUP_KEYGEN:                   _("GPG home directory is not set correctly.\n"
470              c.interactive = 1;                     "Please check the GPG registry settings:\n%s."),
471              c.first_start = 1;                   winpt_strerror (rc));
472              rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYWIZARD,          s = get_fileopen_dlg (GetActiveWindow (),
473                                   h, keygen_wizard_dlg_proc, (LPARAM)&c);                                _("Select GPG Public Keyring"),
474              if (!rc)                                "GPG Keyrings (*.gpg)\0*.gpg\0\0",
475                  goto start;                                NULL);
476              break;          if (s != NULL && (p=strrchr (s, '\\'))) {
477                char *path = substr (s, 0, (p-s));
478          case SETUP_IMPORT:  
479              rc = gnupg_copy_keyrings ();              set_reg_entry_gpg ("HomeDir", path);
480              if (rc) {              free_if_alloc (path);
481                  msg_box (hwnd, winpt_strerror (rc), _("WinPT Error"), MB_ERR);          }
482                  goto start;          else {
483              }              msg_box (GetDesktopWindow (),
484              break;                       _("GPG home directory could not be determined."),
485                         _("WinPT Error"), MB_ERR);
486          case -1:              goto start;
487              DestroyWindow (hwnd);          }
488              free_gnupg_table ();      }
489              return 0;  
490          }      rc = check_gnupg_prog ();
491          update_keycache (hwnd);      if (rc) {
492          check_crypto_engine ();          if (msg_box (GetDesktopWindow (),
493      }                       _("Could not find the GPG binary (gpg.exe).\n"
494      else {                         "Do you want to start the GPG preferences to "
495          gpg_keycache_t c;                         "correct  this problem?"), _("WinPT Error"),
496          update_keycache (hwnd);                       MB_INFO|MB_YESNO) == IDYES)
497          c = keycache_get_ctx (1);              start_gpgprefs = 1;
498          if (!c || !gpg_keycache_get_size (c)) {          else {
499              gnupg_display_error ();              msg_box (GetDesktopWindow (),
500              msg_box (hwnd, _("The keycache was not initialized or is empty.\n"                       winpt_strerror (rc), _("WinPT Error"), MB_ERR);
501                               "Please check your GPG config (keyrings, pathes...)"),              return 0;
502                               _("WinPT Error"), MB_ERR);          }
503              ec = msg_box (NULL, _("It seems that GPG is not set properly.\n"      }
504                                    "Do you want to start the GPG preferences dialog?"),  
505                              "WinPT", MB_INFO|MB_YESNO);      rc = gnupg_access_files ();
506              if (ec == IDYES) {      if (!start_gpgprefs && rc) {
507                  DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,          if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS) {
508                                  gpgprefs_dlg_proc, NULL);              ec = msg_box (GetDesktopWindow (),
509                  update_keycache (hwnd);                  _("Could not access and/or find the public and secret keyring.\n"
510              }                    "If this is an accident, quit the program and fix it.\n\n"
511              else {                    "Continue if you want WinPT to offer you more choices.\n"),
512                  DestroyWindow (hwnd);                    "WinPT", MB_INFO|MB_YESNO);
513                  free_gnupg_table ();              if (ec == IDYES)
514                  return 0;                  first_start = 1;
515              }          }
516          }          if (!first_start) {
517          if (check_default_key (c)) {              msg_box (GetDesktopWindow (), winpt_strerror (rc), _("WinPT Error"), MB_ERR);
518              char * p = get_gnupg_default_key ();              return 0;
519              log_box (_("WinPT Error"), MB_ERR,          }
520                       _("Default key from the GPG options file could not be found.\n"      }
521                         "Please check your gpg.conf (options) to correct this:\n\n"      if (check_for_empty_keyrings (false))
522                         "%s: public key not found."), p? p : "[null]");          first_start = 1;
523              free_if_alloc (p);  
524              DestroyWindow (hwnd);      if (!first_start) {
525              free_gnupg_table ();          rc = gpg_check_permissions (1);
526              return 0;          if (rc && rc == 2) /* 2 means read-only mode. */
527          }              gpg_read_only = 1;
528          if (count_insecure_elgkeys ())          else if (rc)
529              DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_ELGWARN, glob_hwnd,              return 0;
530                              elgamal_warn_dlg_proc, NULL);      }
531      }      
532        init_gnupg_table ();
533      accel_tab = LoadAccelerators (glob_hinst, (LPCTSTR)IDR_WINPT_ACCELERATOR);  
534      keyring_check_last_access (); /* init */      if (fm_parse_command_line (cmdline) > 0) {
535      while (GetMessage (&msg, hwnd, 0, 0)) {          free_gnupg_table ();
536          if (!TranslateAccelerator (msg.hwnd, accel_tab, &msg)) {          return 0;
537              TranslateMessage (&msg);      }
538              DispatchMessage (&msg);  
539          }      rc = kserver_load_conf ();
540      }      if (rc)
541                    msg_box (GetDesktopWindow (), winpt_strerror (rc),
542      return 0;                   _("Keyserver"), MB_ERR);
543  } /* WinMain */  
544        if (cmdline && (stristr (cmdline, "--keymanager")
545                    || stristr (cmdline, "--cardmanager"))) {
546            /* If an instance of WinPT is running, just send the command
547               to open the key manager. Otherwise start a new instance. */
548            HWND tray = FindWindow ("WinPT", "WinPT");
549            if (stristr (cmdline, "keymanager"))
550                start_manager = ID_WINPT_KEY;
551            else
552                start_manager = ID_WINPT_CARD;
553            if (tray != NULL) {
554                PostMessage (tray, WM_COMMAND, start_manager, 0);
555                free_gnupg_table ();
556                return 0;
557            }
558        }
559    
560        /* If we found another WinPT instance, just quit to avoid it
561           will be executed twice. */
562        if (winpt_inst_found) {
563            log_debug ("%s", "WinMain: WinPT is already running.");
564            free_gnupg_table ();
565            return 0;
566        }
567    
568        if (cmdline && (stristr (cmdline, "--enable-debug") ||
569                        stristr (cmdline, "--debug"))) {
570            gpg_set_debug_mode (1);
571            winpt_debug_msg ();
572            debug = 1;
573        }
574    
575        wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));
576        rc = RegisterClass (&wc);
577        if (rc == FALSE) {
578            msg_box (GetDesktopWindow (), _("Could not register window class"),
579                     _("WinPT Error"), MB_ERR);
580            free_gnupg_table ();
581            return 0;
582        }
583    
584        hwnd = CreateWindow (PGM_NAME,
585                             PGM_NAME,
586                             0, 0, 0, 0, 0,
587                             NULL,
588                             NULL,
589                             hinst,
590                             NULL);
591        if (hwnd == NULL) {
592            msg_box (GetDesktopWindow (),
593                     _("Could not create window"),
594                     _("WinPT Error"), MB_ERR);
595            free_gnupg_table ();
596            return 0;
597        }
598        glob_hwnd = hwnd;
599        UpdateWindow (hwnd);
600    
601        if (!first_start && !start_gpgprefs) {
602            gnupg_backup_options ();        
603            if (!check_crypto_engine ()) {
604                DestroyWindow (hwnd);
605                free_gnupg_table ();
606                return 0;
607            }
608        }
609        
610        if (start_gpgprefs) {
611            DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,
612                            gpgprefs_dlg_proc, 0);
613            if (check_for_empty_keyrings (true))
614                first_start = 1; /* The public keyring is empty. */
615        }
616    
617        if (first_start) {
618            struct genkey_s c;
619            int choice;
620            HWND h;
621    start:
622            h = GetDesktopWindow ();
623            if (!gpg_prefs_ok ())
624                DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, h,
625                                gpgprefs_dlg_proc, 0);
626            choice = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_FIRST, h,
627                                     first_run_dlg_proc, 0);
628            switch (choice) {
629            case SETUP_KEYGEN:
630                c.interactive = 1;
631                c.first_start = 1;
632                rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYWIZARD,
633                                     h, keygen_wizard_dlg_proc, (LPARAM)&c);
634                if (!rc)
635                    goto start;
636                break;
637    
638            case SETUP_IMPORT:
639                rc = gnupg_copy_keyrings ();
640                if (rc) {
641                    msg_box (hwnd, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
642                    goto start;
643                }
644                break;
645    
646            case SETUP_EXISTING:
647                rc = gnupg_import_keypair ();
648                if (rc) {
649                    msg_box (hwnd, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
650                    goto start;
651                }
652                break;
653    
654            case SETUP_CARDGEN:
655                rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_CARD_KEYGEN,
656                                     h, card_keygen_dlg_proc, 0);
657                if (!rc)
658                    goto start;
659                break;
660    
661            case 0: /* Cancel/Abort. */
662            default:
663                DestroyWindow (hwnd);
664                free_gnupg_table ();
665                return 0;
666            }
667            update_keycache (hwnd);
668            if (!check_crypto_engine ()) {
669                DestroyWindow (hwnd);
670                free_gnupg_table ();
671                keycache_release (1);
672                return 0;
673            }
674        }
675        else {
676            gpg_keycache_t c;
677            if (update_keycache (hwnd)) {
678                DestroyWindow (hwnd);
679                free_gnupg_table ();
680                keycache_release (1);
681                return 0;
682            }
683            /* XXX: rewrite this part. */
684            c = keycache_get_ctx (1);
685            if (!gpg_keycache_get_size (c)) {
686                msg_box (hwnd, _("The keycache was not initialized or is empty.\n"
687                                 "Please check your GPG config (keyrings, pathes...)"),
688                                 _("WinPT Error"), MB_ERR);
689                ec = msg_box (GetDesktopWindow (),
690                              _("It seems that GPG is not configured properly.\n"
691                                "Do you want to start the GPG preferences dialog?"),
692                              "WinPT", MB_INFO|MB_YESNO);
693                if (ec == IDYES) {
694                    DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,
695                                    gpgprefs_dlg_proc, 0);
696                    update_keycache (hwnd);
697                }
698                else {
699                    DestroyWindow (hwnd);
700                    free_gnupg_table ();
701                    keycache_release (1);
702                    return 0;
703                }
704            }      
705            if (check_default_key ()) {
706                char *p = get_gnupg_default_key ();
707                log_box (_("WinPT Error"), MB_ERR,
708                         _("Default key (from the GPG config file) could not be found or is unuseable.\n"
709                           "The default key will be resetted and can be set later in the Key Manager again.\n\n"
710                           "%s: secret key not found."), p? p : "?");
711                set_gnupg_default_key (NULL);
712                free_if_alloc (p);
713            }
714            if (count_insecure_elgkeys ())
715                DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_ELGWARN, glob_hwnd,
716                                elgamal_warn_dlg_proc, 0);
717        }
718      
719        if (start_manager)
720            PostMessage (hwnd, WM_COMMAND, start_manager, 0);
721    
722        accel_tab = LoadAccelerators (glob_hinst, (LPCTSTR)IDR_WINPT_ACCELERATOR);
723        keyring_check_last_access (); /* init */
724        while (GetMessage (&msg, hwnd, 0, 0)) {
725            if (!TranslateAccelerator (msg.hwnd, accel_tab, &msg)) {
726                TranslateMessage (&msg);
727                DispatchMessage (&msg);
728            }
729        }
730        
731        return 0;
732    }
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