/[winpt]/trunk/Src/WinPT.cpp
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revision 16 by twoaday, Mon May 9 08:54:21 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 "wptContext.h"
37  HINSTANCE glob_hinst; /* global instance for the dialogs */  #include "wptCardEdit.h"
38  HWND glob_hwnd; /* global window handle for the dialogs */  #include "wptCrypto.h"
39  HWND activ_hwnd;  #include "wptUTF8.h"
40  LOCK mo_file;  
41  int scard_support = 0;  void remove_crit_file_attrs (const char *fname, int force);
42  int debug = 0;  
43  int mobile = 0;  /* Global variables. */
44  int gpg_read_only = 0;  HINSTANCE glob_hinst;   /* global instance for the dialogs */
45  char gpgver[3];  HWND glob_hwnd;         /* global window handle for the dialogs */
46    int scard_support = 0;
47  /* Internal IPC */  int debug = 0;
48  int start_keymanager = 0;  int gpg_read_only = 0;
49    char gpgver[3];
50  static void  /* End */
51  update_keycache (HWND hwnd)  
52  {  
53      refresh_cache_s rcs = {0};  /* Retrieve the product verion of the given file @fname.
54      rcs.kr_reload = 0;     Format: MAJOR.MINOR.PATCH1.PATCH2
55      rcs.kr_update = 1;     Return value: 0 on success. */
56      rcs.tr_update = 1;  int
57      DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYCACHE, hwnd,  get_file_version (const char *fname, WORD *major, WORD *minor, WORD *patch1, WORD *patch2)
58                      keycache_dlg_proc, (LPARAM)&rcs);  {
59  } /* update_keycache */      VS_FIXEDFILEINFO *inf;
60        char file[MAX_PATH+1] = {0};
61        LPVOID buf, data;
62  static char *      DWORD size;
63  get_gettext_lang (void)      UINT qlen;
64  {          int err = 0;
65      char * fname;  
66      fname = get_reg_entry_mo ();      strncpy (file, fname, MAX_PATH);
67      if (!fname)      size = GetFileVersionInfoSize (file, NULL);
68          return NULL;      if (!size)
69      return fname;          return -1;
70  } /* get_gettext_lang */      
71        buf = (LPVOID)new char[size];
72        if (!buf)
73  static void          BUG (NULL);
74  load_gettext (void)      if (!GetFileVersionInfo (file, 0, size, buf)) {
75  {          err = -1;
76      char * nls = NULL;          goto fail;
77      char * file = NULL;      }
78    
79      nls = get_gettext_lang ();      qlen = 0;
80      if (nls) {      VerQueryValue (buf, (char*)"\\", &data, &qlen);
81          set_gettext_file ("winpt", nls);      if (!qlen) {
82          file = make_filename (nls, "winpt", "mo");          err = -1;
83          if (!file_exist_check (nls) && init_file_lock (&mo_file, file))  {          goto fail;
84              msg_box (NULL, _("Could not initizalize file lock.\n"      }
85                               "Native Language Support"),      
86                       _("WinPT Error"), MB_ERR);      inf = (VS_FIXEDFILEINFO*)data;
87          }      *major = HIWORD (inf->dwProductVersionMS);
88          free_if_alloc (nls);      *minor = LOWORD (inf->dwProductVersionMS);
89          free_if_alloc (file);      *patch1 = HIWORD (inf->dwProductVersionLS);
90      }      *patch2 = LOWORD (inf->dwProductVersionLS);
91  } /* load_gettext */  
92    fail:
93        delete [](char*)buf;
94  /* check if the default key from the gpg.conf file is available in the      return err;
95     keyring. if not, bail out because encryption won't work properly then. */  }
96  static int  
97  check_default_key (gpgme_keycache_t kc)  
98  {  /* Load the key cache and rebuild the signature cache. */
99      gpgme_key_t key;  int
100      gpgme_error_t err = GPGME_No_Error;  update_keycache (HWND hwnd)
101      char * defkey;  {
102        int err;
103      defkey = get_gnupg_default_key ();      refresh_cache_s rcs;
104      if (defkey)  
105          err = gpgme_keycache_find_key (kc, defkey, 0, &key);      /* no need to rebuild the sig cache each time. */
106      free_if_alloc (defkey);      memset (&rcs, 0, sizeof (rcs));
107      return err? -1 : 0;      rcs.kring_update = 1;
108  } /* check_default_key */      err = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYCACHE, hwnd,
109                        keycache_dlg_proc, (LPARAM)&rcs);
110        if (err) {
111  /* Return the WinPT program file name (with full pathname). */          char *cfgf = get_gnupg_config ();
112  static const char *          if (cfgf && check_gnupg_options (cfgf, 0) == WPTERR_FILE_EXIST)
113  get_prog_part (const char * fname, int use_cwd)              msg_box (GetDesktopWindow (),
114  {                       _("The gpg.conf contains at least one argument which points to a non-existing file."), "WinPT", MB_ERR);
115      static char program[1024];          free_if_alloc (cfgf);
116      char currdir[256], * cmd = NULL;          return -1;
117      int j;      }
118                return 0;
119      memset (currdir, 0, DIM (currdir));  }
120      memset (program, 0, DIM (program));  
121            
122      if (use_cwd) {  /* Set GPGME debug mode. If @val is 0, the debug mode is disabled. */
123          GetCurrentDirectory (DIM (currdir)-1, currdir);  void
124          _snprintf (program, DIM (program)-1, "%s\\%s", currdir, fname);  gpg_set_debug_mode (int val)
125      }  {
126      else {      static char buf[MAX_PATH+1];
127          cmd = GetCommandLine ();      char tmp[128];
128          if (cmd == NULL)      
129              return NULL;      /* XXX: no gpgme.dbg is created. */
130          strncpy (currdir, cmd, 255);      if (val > 0) {
131          j = strlen (currdir);          GetTempPath (DIM (tmp)-1, tmp);
132          while (j--) {          _snprintf (buf, DIM (buf)-1, "GPGME_DEBUG=5:%sgpgme.dbg", tmp);
133              if (currdir[j] == '\\')          putenv (buf);
134                  break;                }
135          }      else
136          currdir[j] = 0;          putenv ("GPGME_DEBUG=");
137          _snprintf (program, DIM (program)-1, "%s\\%s", currdir + 1, fname);  }
138      }  
139      return program;  
140  } /* get_prog_part */  /* Return true if the GPG environment is useable. */
141    static bool
142    gpg_prefs_ok (void)
143  static int  {
144  check_crypto_engine (void)      char *p = get_reg_entry_gpg4win ("gpg.exe");
145  {      if (!p || file_exist_check (p) != 0) {
146      int ma=1, mi=2, pa=4; /* GPG 1.2.4 */          free_if_alloc (p);
147      int rc;          p = get_reg_entry_gpg ("gpgProgram");
148            if (!p || file_exist_check (p) != 0) {
149      rc = check_gnupg_engine (&ma, &mi, &pa);              free_if_alloc (p);
150      if (rc == -1) {              log_debug ("gpg_prefs_ok: could not locate gpg.exe");
151          msg_box (NULL, _("Could not read GnuPG version."), _("WinPT Error"), MB_ERR);              return false;
152          return rc;          }
153      }      }
154      else if (rc) {      free_if_alloc (p);
155          log_box (_("WinPT Error"), MB_ERR,      p = get_reg_entry_gpg4win (NULL);
156                   _("Sorry, you need a newer GPG version.\n"      if (!p || dir_exist_check (p) != 0) {
157                     "GPG version %d.%d.%d requred GPG version 1.2.4"),          free_if_alloc (p);
158                     ma, mi, pa);          p = get_reg_entry_gpg ("HomeDir");
159          return rc;          if (!p || dir_exist_check (p) != 0) {
160      }              free_if_alloc (p);
161      /* We enable smartcard support for GPG: 1.9.x or >= 1.4.0 */              log_debug ("gpg_prefs_ok: could not determine home directory");
162      if (ma >= 1 && mi >= 4)              return false;
163          scard_support = 1;          }
164        }
165      gpgver[0] = ma;      free_if_alloc (p);
166      gpgver[1] = mi;      return true;
167      gpgver[2] = pa;  }
168      return rc;  
169  } /* check_crypto_engine */  
170    /* Check gpg files if they are read-only and ask the user
171       if this should be corrected. */
172  static int  static void
173  load_keyserver_conf (int quiet)  check_readonly_attr (const char *homedir)
174  {  {
175      const char * t;      const char *files[] = {"pubring.gpg", "secring.gpg", "trustdb.gpg", NULL};
176      int rc;  
177        for (int i=0; files[i] != NULL; i++) {
178      if (reg_prefs.kserv_conf)          char *file = make_filename (homedir, files[i], NULL);
179          t = reg_prefs.kserv_conf;          remove_crit_file_attrs (file, 0);
180      else if (!file_exist_check (get_prog_part ("keyserver.conf", 0)))          free_if_alloc (file);
181          t = get_prog_part ("keyserver.conf", 0);      }
182      else  }
183          t = "keyserver.conf";  
184      rc = kserver_load_conf (t);  
185      if (rc && !quiet)  /* Load the GPG environment. On the first start, some
186          msg_box (NULL, winpt_strerror (rc), _("Keyserver"), MB_ERR);     checks are performed to find out in what state GPG is.
187      return rc;     Return value: 0  everything OK.
188  }                   >0  fatal error.
189                     -1 public keyring is empty or does not exist. */
190    static int
191  static void  load_gpg_env (void)
192  enable_mobile_mode (void)  {
193  {      SECURITY_ATTRIBUTES sec_attr;
194      memset (&reg_prefs, 0, sizeof (reg_prefs));      char *p;
195      reg_prefs.always_trust = 0;      char *pkr;
196      reg_prefs.auto_backup = 0;      int err = 0;
197      reg_prefs.cache_time = 0;  
198      reg_prefs.expert = 0;      p = get_reg_entry_gpg4win ("gpg.exe");
199      reg_prefs.keylist_mode = 1;      if (!p)
200      reg_prefs.kserv_conf = m_strdup ("keyserver.conf");          return (1);
201      reg_prefs.no_zip_mmedia = 1;      if (file_exist_check (p)) {
202      reg_prefs.use_tmpfiles = 1;          free_if_alloc (p);
203      reg_prefs.word_wrap = 80;          return (1);
204      reg_prefs.use_viewer = 0; /* XXX */      }
205  }      free_if_alloc (p);
206    
207  char* get_subkey_fingerprint (gpgme_ctx_t ctx, const char *keyid);      p = get_reg_entry_gpg ("HomeDir");
208        if (!p || dir_exist_check (p) != 0) {
209  int WINAPI          free_if_alloc (p);
210  #ifndef WINPT_IPC          p = multi_gnupg_path (0);
211  WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)      }
212  #else      if (p && dir_exist_check (p)) {
213  win_main (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)          memset (&sec_attr, 0, sizeof (sec_attr));
214  #endif          sec_attr.nLength = sizeof (sec_attr);
215  {          if (!CreateDirectory (p, &sec_attr)) {
216      WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};              msg_box (GetDesktopWindow (),
217      HACCEL accel_tab;                       _("Could not create GPG home directory"),
218      int rc, ec, created = 0, use_cwd = 0, nfiles = 0;                       _("WinPT Error"), MB_ERR);
219      int first_start = 0, start_gpgprefs = 0;              free_if_alloc (p);
220      const char * s;              return (2);
221      MSG msg;          }
222      HWND hwnd;      }
223        check_readonly_attr (p);
224      glob_hinst = hinst;      pkr = make_filename (p, "pubring", "gpg");
225            free_if_alloc (p);
226      gpgme_lib_init ();      if (get_file_size (pkr) == 0)
227      #ifdef _DEBUG          err = -1;
228      gpgme_set_debug_mode (1);      free_if_alloc (pkr);
229      #endif      return err;
230      gpgme_set_pgm_string ("WinPT "PGM_VERSION);  }
231    
232      s = PTD_get_version ();  
233      if (strcmp (s, "0.8.0")) {  /* check if the default key from the gpg.conf file is available in the
234          log_box (_("Privacy Tray Dynamic (PTD)"), MB_ERR,     keyring. if not, bail out because encryption won't work properly then. */
235                   _("Please update your PTD.dll to the newest version, "  static int
236                     "the version (%s) you use is too old."), s);  check_default_key (void)
237          return 0;  {
238      }      gpgme_key_t key;
239        gpgme_error_t err = gpg_error (GPG_ERR_NO_ERROR);
240      if (gpg_md_selftest ()) {      gpg_keycache_t kc;
241          msg_box (NULL, _("Cryptographic selftest failed."),      char *defkey;
242                   _("WinPT Error"), MB_ERR);  
243          return 0;      kc = keycache_get_ctx (0);
244      }      defkey = get_gnupg_default_key ();
245        if (defkey != NULL) {
246      if (cmdline && stristr (cmdline, "--mobile")) {          err = gpg_keycache_find_key (kc, defkey, 0, &key);
247          msg_box (NULL, "WARNING: mobile modus is not fully implemented yet!", "WinPT", MB_INFO);          if (err) {
248          mobile = 1;              free_if_alloc (defkey);
249      }              return -1;
250            }
251      set_default_kserver ();      }
252        else {
253      if (!mobile) {          /* Actually this is just a warning but we still continue. */
254          regist_inst_gnupg (1);          msg_box (GetDesktopWindow (), _("No useable secret key found."),
255          regist_inst_winpt (1, &created);                   _("WinPT Warning"), MB_WARN);
256      }          return 0;
257      else {      }
258          enable_mobile_mode ();  
259          /* XXX: ask for GPG path */      /* Because the secret key listing has no information
260          created = 1; /* Disable registry writing */         about the validity/status, we need to check the public key. */
261      }      kc = keycache_get_ctx (1);
262        if (!gpg_keycache_find_key (kc, defkey, 0, &key) &&
263      if (!created) {          (key->revoked || key->expired)) {
264          memset (&reg_prefs, 0, sizeof (reg_prefs));          msg_box (GetDesktopWindow (), _("Default secret key is unuseable"),
265          reg_prefs.use_tmpfiles = 1; /* default */                   _("WinPT Warning"), MB_ERR);
266          reg_prefs.fm.progress = 0; /* XXX: fix the bug and enable it again */          free_if_alloc (defkey);
267          get_reg_winpt_prefs (&reg_prefs);          return -1;
268          if (!reg_prefs.no_hotkeys)      }
269              hotkeys_modify ();      free_if_alloc (defkey);
270      }      return 0;
271    }
272      rc = gnupg_check_homedir ();  
273      if (rc) {  
274          log_box (_("WinPT Error"), MB_ERR,  /* Check that the underlying crypto engine fullfills the minimal
275                   _("GPG home directory is not set correctly.\n"     requirements so all commands work properly. */
276                     "Please check the GPG registry settings:\n%s."),  static bool
277                   winpt_strerror (rc));  check_crypto_engine (void)
278          const char * s = get_filename_dlg (GetActiveWindow (), FILE_OPEN,  {
279                                             _("Select GPG Public Keyring"),      int ma = 0, mi = 0, pa = 0;
280                                             _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),      int rc;
281                                             NULL);  
282          if (s && !file_exist_check (s))      rc = check_gnupg_engine (NEED_GPG_VERSION, &ma, &mi, &pa);
283          {      if (rc == -1) {
284              size_t n;          msg_box (GetDesktopWindow (), _("Could not read GnuPG version."),
285              char * p = strrchr (s, '\\');                   _("WinPT Error"), MB_ERR);
286              if (!p)          return false;
287                  BUG (0);      }
288              n = p - s;      else if (rc) {
289              if (n)          log_box (_("WinPT Error"), MB_ERR,
290              {                   _("A newer GPG version is needed.\n"
291                  char * file = new char[n+1];                     "Current GPG version %d.%d.%d, required "NEED_GPG_VERSION),
292                  if (!file)                     ma, mi, pa);
293                      BUG (NULL);          return false;
294                  memset (file, 0, n);      }
295                  memcpy (file, s, n);      
296                  file[n] = '\0';              // TODO: smart card support needs to be revamped
297                  set_reg_entry_gpg ("HomeDir", file);      // and adjusted according to newer OpenPGP cards.
298                  free_if_alloc (file);      /*
299                  gnupg_check_homedir (); /* change gpgProgram if needed */      if ((ma > 1 || pa >= 4) && pcsc_available ())
300              }          scard_support = 1;
301          }      */
302          else {      scard_support = 0;
303              msg_box (NULL, _("GPG home directory could not be determited."),      
304                       _("WinPT Error"), MB_ERR);      gpgver[0] = ma;
305              goto start;      gpgver[1] = mi;
306          }      gpgver[2] = pa;
307      }      return true;
308    }
309      rc = check_gnupg_prog ();  
310      if (rc) {  
311          if (msg_box (NULL, _("Could not find the GPG binary (gpg.exe).\n"  
312                               "Do you want to start the GPG preferences to "  /* Check if both keyrings are empty. This indicates that
313                               "correct  this problem?"), _("WinPT Error"),     WinPT should offer to generate a key pair. */
314                               MB_INFO|MB_YESNO) == IDYES)  static bool
315              start_gpgprefs = 1;  check_for_empty_keyrings (bool pub_only)
316          else  {
317          {      char *p;
318              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);      int n;
319              return 0;  
320          }      n=0;
321      }      p = get_gnupg_keyring (1, 0);
322        if (file_exist_check (p) == 0 && get_file_size (p) == 0)
323      rc = gnupg_access_files ();          n++;
324      if (!start_gpgprefs && rc)      free_if_alloc (p);
325      {      if (pub_only)
326          if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS)          return n == 1? true : false;
327          {      p = get_gnupg_keyring (0, 0);
328              ec = msg_box (NULL,      if (file_exist_check (p) == 0 && get_file_size (p) == 0)
329                  _("Could not access and/or find the public and secret keyring.\n"          n++;
330                    "If this is an accident, quit the program and fix it.\n\n"      free_if_alloc (p);
331                    "Continue if you want that WinPT offers you more choices.\n"),      return n==2? true : false;
332                    "WinPT", MB_INFO|MB_YESNO);  }
333              if (ec == IDYES)  
334                  first_start = 1;  
335          }  
336          if (!first_start)  /* Display info message that WinPT is now in debug mode. */
337          {  void
338              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);  winpt_debug_msg (void)
339              return 0;  {      
340          }      char output[512];
341      }      char temp[MAX_PATH+1];
342            
343      if (!first_start)      GetTempPath (DIM (temp) -1, temp);
344      {      _snprintf (output, DIM (output)-1,
345          rc = gpg_check_permissions (1);          "The GPGME output file is %sgpgme.dbg\n"
346          if (rc && rc == 2)          "The WinPT output file is %swinpt.log\n", temp, temp);
347              gpg_read_only = 1;      MessageBox (NULL, output, "WinPT now runs in DEBUG MODE", MB_INFO);
348          else if (rc)  }
349              return 0;  
350      }  
351    /* Search for insecure ElGamal keys and return the
352      load_gettext ();     number of founded keys. */
353      init_gnupg_table ();  static int
354    count_insecure_elgkeys (void)
355      nfiles = fm_parse_command_line (cmdline);  {
356      if (nfiles > 0)      gpg_keycache_t pc;
357          return 0;      gpgme_key_t key;
358        int n;
359      if (cmdline && stristr (cmdline, "--wipe-freespace")) {  
360          dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_SPACE_SECDEL,      n=0;
361                              GetDesktopWindow(), space_wipefrees_dlg_proc, NULL,      pc = keycache_get_ctx (1);
362                              _("Wipe Free Space"), IDS_WINPT_SPACE_SECDEL);      while (!gpg_keycache_next_key (pc, 0, &key)) {
363          free_gnupg_table ();          if (key->subkeys->pubkey_algo == GPGME_PK_ELG)
364          return 0;              n++;
365      }      }
366        gpg_keycache_rewind (pc);
367      load_keyserver_conf (cmdline? 1 : 0);      return n;
368      if (start_keymanager) {  }
369          dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_KEYMISC,  
370                              GetDesktopWindow(), keymanager_dlg_proc, NULL,  
371                              _("Key Manager"), IDS_WINPT_KEYMISC);  /* Return 1 if the current OS version is at least Windows XP */
372          keycache_release ();  static int
373          free_gnupg_table ();  check_os_version (void)
374          return 0;  {
375      }      OSVERSIONINFOA osver;    
376        memset (&osver, 0, sizeof (osver));
377      if (cmdline && (stristr (cmdline, "--keymanager")      osver.dwOSVersionInfoSize = sizeof (osver);
378                  || stristr (cmdline, "--cardmanager"))) {      
379          update_keycache (GetDesktopWindow ());      if (!GetVersionEx (&osver)) {
380          if (stristr (cmdline, "keymanager"))          MessageBox (NULL, _("Could not read the OS version."), _("WinPT Error"), MB_ERR);
381              dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_KEYMISC,          return 0;
382                              GetDesktopWindow(), keymanager_dlg_proc, NULL,      }
383                              _("Key Manager"), IDS_WINPT_KEYMISC);    
384          else {      if (osver.dwMajorVersion < 5 ||
385              gpgme_card_t crd = smartcard_init ();          (osver.dwMajorVersion == 5 && osver.dwMinorVersion == 0)) {
386              if (crd)          MessageBox (NULL, _("WinPT requires Windows XP or higher."), _("WinPT Error"), MB_ERR);
387                  dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_CARD_EDIT,          return 0;
388                                    GetDesktopWindow(), card_edit_dlg_proc,      }
389                                    (LPARAM)crd, _("Card Manager"),      
390                                    IDS_WINPT_CARD_EDIT);      return 1;
391              gpgme_card_release (crd);  }
392          }      
393          keycache_release ();  /* Main entry point. */
394          free_gnupg_table ();  int WINAPI
395          return 0;  WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)
396      }  {
397        WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};
398      CreateMutex (NULL, TRUE, PGM_NAME);      HACCEL accel_tab;
399      if (GetLastError () == ERROR_ALREADY_EXISTS) {      MSG msg;
400          free_gnupg_table ();      HWND hwnd = NULL;
401          return 0;      WORD ver[3], ptdver[4];
402      }      
403        const char *s;
404      if (cmdline) {      int rc, ec, created = 0;
405          if (stristr (cmdline, "--enable-debug") || stristr (cmdline, "--debug")) {      int first_start = 0, start_gpgprefs = 0;
406              gpgme_set_debug_mode (1);      int winpt_inst_found = 0;
407              winpt_debug_msg ();      int start_manager = 0;    
408              debug = 1;  
409          }      if (!check_os_version ())
410      }          return 0;
411        
412      wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));      glob_hinst = hinst;
413      rc = RegisterClass (&wc);      
414      if (rc == FALSE) {      /* Allow to shutdown the process, for instance by an installer */
415          msg_box (NULL, _("Could not register window class"), _("WinPT Error"), MB_ERR);      if (cmdline && stristr (cmdline, "--stop")) {
416          free_gnupg_table ();          hwnd = FindWindow ("WinPT", "WinPT");
417          return 0;          if (hwnd != NULL)
418      }              PostMessage (hwnd, WM_DESTROY, 0, 0);
419            return 0;
420      hwnd = CreateWindow (PGM_NAME,      }    
421                           PGM_NAME,  
422                           0, 0, 0, 0, 0,      get_file_version ("winpt.exe", &ver[0], &ver[1], &ver[2], &ver[3]);
423                           NULL,      ec = get_file_version ("PTD.dll", &ptdver[0], &ptdver[1], &ptdver[2], &ptdver[3]);
424                           NULL,      if (!ec && (ptdver[0] != ver[0] || ptdver[1] != ver[1] || ptdver[2] != ver[2])) {
425                           hinst,          log_box (_("WinPT Error"), MB_ERR,
426                           NULL);                   _("The PTD.dll file has a different version than WinPT.exe\n"
427      if (hwnd == NULL) {                     "Please update the PTD.dll to version %d.%d.%d"),
428          msg_box (NULL, _("Could not create window"), _("WinPT Error"), MB_ERR);                     ver[0], ver[1], ver[2]);
429          free_gnupg_table ();          return 0;
430          return 0;      }
431      }  
432      glob_hwnd = hwnd;      s = gpgme_check_version (NEED_GPGME_VERSION);
433      UpdateWindow (hwnd);      if (!s || !*s) {
434            msg_box (GetDesktopWindow (),
435      if (!first_start && !start_gpgprefs) {                   _("A newer GPGME version is needed; at least "NEED_GPGME_VERSION),
436          gnupg_backup_options (1);                   _("WinPT Error"), MB_ERR);
437          gnupg_backup_options (0);          return 0;
438                }
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      {  
449          char *ring;      if (!created) {
450          size_t size = 0;          memset (&reg_prefs, 0, sizeof (reg_prefs));
451          DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,          get_reg_winpt_prefs (&reg_prefs);
452                          gpgprefs_dlg_proc, NULL);          reg_prefs.fm.progress = 0; /* TODO: fix the bug and enable it again */
453          ring = get_gnupg_keyring (0, !NO_STRICT);          if (gnupg_load_config () == -2)
454          if (gnupg_access_keyring (0) == -1 && get_file_size (ring) == 0)              msg_box (GetDesktopWindow (),
455              first_start = 1; /* The keyring is empty! */                       _("The gpg.conf file contains the 'textmode' option\n"
456          free_if_alloc (ring);                         "which leads to broken binary output during decryption.\n"
457      }                         "If this is on purpose, just continue otherwise the option should be disabled."),
458                         _("WinPT Error"), MB_ERR);
459      if (first_start) {      }
460          struct key_wizard_s c, dummy;  
461  start:      if (is_gpg4win_installed ())
462          DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_FIRST, hwnd,          load_gpg_env (); /* TODO: check return code. */
463                          first_run_dlg_proc, (LPARAM)&dummy);  
464          switch (dummy.interactive)      rc = gnupg_check_homedir ();
465          {      if (rc) {
466          case SETUP_KEYGEN:          char *p;
467              c.interactive = 1;  
468              rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYWIZARD,          log_box (_("WinPT Error"), MB_ERR,
469                                   hwnd, keygen_wizard_dlg_proc, (LPARAM)&c);                   _("GPG home directory is not set correctly.\n"
470              if (!rc)                     "Please check the GPG registry settings:\n%s."),
471                  goto start;                   winpt_strerror (rc));
472              break;          s = get_fileopen_dlg (GetActiveWindow (),
473                                  _("Select GPG Public Keyring"),
474          case SETUP_IMPORT:                                "GPG Keyrings (*.gpg)\0*.gpg\0\0",
475              rc = gnupg_copy_keyrings ();                                NULL);
476              if (rc) {          if (s != NULL && (p=strrchr (s, '\\'))) {
477                  msg_box (hwnd, winpt_strerror (rc), _("WinPT Error"), MB_ERR);              char *path = substr (s, 0, (p-s));
478                  goto start;  
479              }              set_reg_entry_gpg ("HomeDir", path);
480              break;              free_if_alloc (path);
481            }
482          case SETUP_EXISTING:          else {
483              DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,              msg_box (GetDesktopWindow (),
484                              gpgprefs_dlg_proc, NULL);                       _("GPG home directory could not be determined."),
485              break;                       _("WinPT Error"), MB_ERR);
486                goto start;
487          case -1:          }
488              DestroyWindow (hwnd);      }
489              free_gnupg_table ();  
490              return 0;      rc = check_gnupg_prog ();
491          }      if (rc) {
492          update_keycache (hwnd);          if (msg_box (GetDesktopWindow (),
493          check_crypto_engine ();                       _("Could not find the GPG binary (gpg.exe).\n"
494      }                         "Do you want to start the GPG preferences to "
495      else {                         "correct  this problem?"), _("WinPT Error"),
496          gpgme_keycache_t c;                       MB_INFO|MB_YESNO) == IDYES)
497          update_keycache (hwnd);              start_gpgprefs = 1;
498          c = keycache_get_ctx (1);          else {
499          if (!c || !gpgme_keycache_count (c)) {              msg_box (GetDesktopWindow (),
500              gnupg_display_error ();                       winpt_strerror (rc), _("WinPT Error"), MB_ERR);
501              msg_box (hwnd, _("The keycache was not initialized or is empty.\n"              return 0;
502                               "Please check your GPG config (keyrings, pathes...)"),          }
503                               _("WinPT Error"), MB_ERR);      }
504              ec = msg_box (NULL, _("It seems that GPG is not set properly.\n"  
505                                    "Do you want to start the GPG preferences dialog?"),      rc = gnupg_access_files ();
506                              "WinPT", MB_INFO|MB_YESNO);      if (!start_gpgprefs && rc) {
507              if (ec == IDYES) {          if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS) {
508                  DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,              ec = msg_box (GetDesktopWindow (),
509                                  gpgprefs_dlg_proc, NULL);                  _("Could not access and/or find the public and secret keyring.\n"
510                  update_keycache (hwnd);                    "If this is an accident, quit the program and fix it.\n\n"
511              }                    "Continue if you want WinPT to offer you more choices.\n"),
512              else {                    "WinPT", MB_INFO|MB_YESNO);
513                  DestroyWindow (hwnd);              if (ec == IDYES)
514                  free_gnupg_table ();                  first_start = 1;
515                  return 0;          }
516              }          if (!first_start) {
517          }              msg_box (GetDesktopWindow (), winpt_strerror (rc), _("WinPT Error"), MB_ERR);
518          if (check_default_key (c)) {              return 0;
519              char * p = get_gnupg_default_key ();          }
520              log_box (_("WinPT Error"), MB_ERR,      }
521                       _("Default key from the GPG options file could not be found.\n"      if (check_for_empty_keyrings (false))
522                         "Please check your gpg.conf (options) to correct this:\n\n"          first_start = 1;
523                         "%s: public key not found."), p? p : "[null]");  
524              free_if_alloc (p);      if (!first_start) {
525              DestroyWindow (hwnd);          rc = gpg_check_permissions (1);
526              free_gnupg_table ();          if (rc && rc == 2) /* 2 means read-only mode. */
527              return 0;              gpg_read_only = 1;
528          }          else if (rc)
529          if (count_insecure_elgkeys ())              return 0;
530              DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_ELGWARN, glob_hwnd,      }
531                              elgamal_warn_dlg_proc, NULL);      
532      }      init_gnupg_table ();
533    
534      accel_tab = LoadAccelerators (glob_hinst, (LPCTSTR)IDR_WINPT_ACCELERATOR);      if (fm_parse_command_line (cmdline) > 0) {
535      keyring_check_last_access (); /* init */          free_gnupg_table ();
536      while (GetMessage (&msg, hwnd, 0, 0)) {          return 0;
537          if (!TranslateAccelerator (msg.hwnd, accel_tab, &msg)) {      }
538              TranslateMessage (&msg);  
539              DispatchMessage (&msg);      rc = kserver_load_conf ();
540          }      if (rc)
541      }          msg_box (GetDesktopWindow (), winpt_strerror (rc),
542                             _("Keyserver"), MB_ERR);
543      return 0;  
544  } /* WinMain */      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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