/[winpt]/trunk/Src/WinPT.cpp
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revision 32 by twoaday, Mon Oct 24 08:03:48 2005 UTC revision 248 by twoaday, Fri Jul 28 11:11:09 2006 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) 2000-2006 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"  #include <shlobj.h>
26  #include "wptErrors.h"  
27  #include "wptGPG.h"  #include "resource.h"
28  #include "wptRegistry.h"  #include "wptTypes.h"
29  #include "wptCommonCtl.h"  #include "wptW32API.h"
30  #include "wptDlgs.h"  #include "wptVersion.h"
31  #include "wptNLS.h"  #include "wptErrors.h"
32  #include "wptKeyserver.h"  #include "wptGPG.h"
33  #include "wptCard.h"  #include "wptRegistry.h"
34  #include "wptFileManager.h"  #include "wptCommonCtl.h"
35  #include "wptContext.h"  #include "wptDlgs.h"
36  #include "wptCardEdit.h"  #include "wptNLS.h"
37    #include "wptKeyserver.h"
38    #include "wptCard.h"
39  #define MIN_GPG_VER   "1.4.3"   /* Minimal GPG version. */  #include "wptFileManager.h"
40  #define MIN_GPGME_VER "1.2.0"   /* Minimal GPGME version. */  #include "wptContext.h"
41  #define MIN_PTD_VER   "0.8.1"   /* Minimal PTD version. */  #include "wptCardEdit.h"
42    #include "wptCrypto.h"
43    #include "wptUTF8.h"
44  HINSTANCE glob_hinst;   /* global instance for the dialogs */  
45  HWND glob_hwnd;         /* global window handle for the dialogs */  void remove_crit_file_attrs (const char *fname, int force);
46  HWND activ_hwnd;  BOOL user_is_admin (void);
47  LOCK mo_file;  
48  int scard_support = 0;  /* Global variables. */
49  int debug = 0;  HINSTANCE glob_hinst;   /* global instance for the dialogs */
50  int mobile = 0;  HWND glob_hwnd;         /* global window handle for the dialogs */
51  int gpg_read_only = 0;  int scard_support = 0;
52  char gpgver[3];  int debug = 0;
53    int mobile_mode_active = 0;
54    int gpg_read_only = 0;
55  /* Load the key cache and rebuild the signature cache. */  int admin_user = 0;
56  static void  char gpgver[3];
57  update_keycache (HWND hwnd)  /* End */
58  {  
59      refresh_cache_s rcs = {0};  
60      rcs.kr_reload = 0;  /* Load the key cache and rebuild the signature cache. */
61      rcs.kr_update = 1;  void
62      rcs.tr_update = 1;  update_keycache (HWND hwnd)
63      DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYCACHE, hwnd,  {
64                      keycache_dlg_proc, (LPARAM)&rcs);      refresh_cache_s rcs = {0};
65  }      rcs.kr_reload = 0;
66        rcs.kr_update = 1;
67        rcs.tr_update = 1;
68  /* Set GPGME debug mode. If @val is 0, the debug mode is disabled. */      DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYCACHE, hwnd,
69  void                      keycache_dlg_proc, (LPARAM)&rcs);
70  gpg_set_debug_mode (int val)      /* XXX: the dialog return 0 when an error occurs.
71  {                    in this case figure out if the gpg env is OK
72      if (val)              and supress dialogs to configure gpg. */
73          putenv ("GPGME_DEBUG=5:gpgme.dbg");  }
74      else  
75          putenv ("GPGME_DEBUG=");  
76  }  /* Set GPGME debug mode. If @val is 0, the debug mode is disabled. */
77    void
78    gpg_set_debug_mode (int val)
79  /* Return the name of the gettext language file. */  {
80  static char*      static char buf[256];
81  get_gettext_lang (void)      char tmp[128];
82  {          
83      char *fname;      /* XXX: no gpgme.dbg is created. */
84      fname = get_reg_entry_mo ();      if (val > 0) {
85      if (!fname)          GetTempPath (sizeof (tmp)-1, tmp);
86          return NULL;          _snprintf (buf, sizeof (buf)-1, "GPGME_DEBUG=5:%sgpgme.dbg", tmp);
87      return fname;          putenv (buf);
88  }      }
89        else
90            putenv ("GPGME_DEBUG=");
91  /* Initialize the gettext sub system. */  }
92  static void  
93  load_gettext (void)  
94  {  /* Initialize the gettext sub system. */
95      char *nls = NULL;  static void
96      char *file = NULL;  load_gettext (void)
97    {
98      nls = get_gettext_lang ();      char *nls = NULL;
99      if (nls) {  
100          set_gettext_file ("winpt", nls);      /* Return the name of the gettext language file. */
101          file = make_filename (nls, "winpt", "mo");      nls = get_reg_entry_mo ();
102          if (!file_exist_check (nls) && init_file_lock (&mo_file, file))  {      if (nls != NULL) {
103              msg_box (NULL, _("Could not initizalize file lock.\n"          set_gettext_file ("winpt", nls);
104                               "Native Language Support"),          free_if_alloc (nls);
105                       _("WinPT Error"), MB_ERR);      }
106          }  }
107          free_if_alloc (nls);  
108          free_if_alloc (file);  
109      }  /* Return true if the GPG environment is useable. */
110  }  static bool
111    gpg_prefs_ok (void)
112    {
113  /* check if the default key from the gpg.conf file is available in the      char *p;
114     keyring. if not, bail out because encryption won't work properly then. */  
115  static int      p = get_reg_entry_gpg4win ("gpg.exe");
116  check_default_key (gpg_keycache_t kc)      if (!p || file_exist_check (p) != 0) {
117  {          free_if_alloc (p);
118      gpgme_key_t key;          p = get_reg_entry_gpg ("gpgProgram");
119      gpgme_error_t err = GPG_ERR_NO_ERROR;          if (!p || file_exist_check (p) != 0) {
120      char * defkey;              free_if_alloc (p);
121                log_debug ("gpg_prefs_ok: could not locate gpg.exe");
122      defkey = get_gnupg_default_key ();              return false;
123      if (defkey)          }
124          err = gpg_keycache_find_key (kc, defkey, 0, &key);      }
125      free_if_alloc (defkey);      free_if_alloc (p);
126      return err? -1 : 0;      p = get_reg_entry_gpg4win (NULL);    
127  }      if (!p || dir_exist_check (p) != 0) {
128            free_if_alloc (p);
129            p = get_reg_entry_gpg ("HomeDir");
130  /* Return the WinPT program file name (with full pathname). */          if (!p || dir_exist_check (p) != 0) {
131  static const char *              free_if_alloc (p);
132  get_prog_part (const char * fname, int use_cwd)              log_debug ("gpg_prefs_ok: could not determine home directory");
133  {              return false;
134      static char program[512];          }
135      char currdir[256];      }
136      char *cmd = NULL;      free_if_alloc (p);
137      int j;      return true;
138            }
139      memset (currdir, 0, DIM (currdir));  
140      memset (program, 0, DIM (program));  
141            /* Check gpg files if they are read-only and ask the user
142      if (use_cwd) {     if this should be corrected. */
143          GetCurrentDirectory (DIM (currdir)-1, currdir);  static void
144          _snprintf (program, DIM (program)-1, "%s\\%s", currdir, fname);  check_readonly_attr (const char *homedir)
145      }  {
146      else {      const char *files[] = {"pubring.gpg", "secring.gpg", "trustdb.gpg", NULL};
147          cmd = GetCommandLine ();      char *file;
148          if (cmd == NULL)      int i;
149              return NULL;  
150          strncpy (currdir, cmd, sizeof (currdir)-1);      for (i=0; files[i] != NULL; i++) {
151          j = strlen (currdir);          file = make_filename (homedir, files[i], NULL);
152          while (j--) {          remove_crit_file_attrs (file, 0);
153              if (currdir[j] == '\\')          free_if_alloc (file);
154                  break;      }
155          }  }
156          currdir[j] = 0;  
157          _snprintf (program, DIM (program)-1, "%s\\%s", currdir + 1, fname);  
158      }  /* Load the GPG environment. On the first start, some
159      return program;     checks are performed to find out in what state GPG is.
160  }     Return value: 0  everything OK.
161                     >0  fatal error.
162                     -1 public keyring is empty or does not exist. */
163  /* Check that the underlying crypto engine fullfills the minimal  static int
164     requirements so all commands work properly. */  load_gpg_env (void)
165  static int  {
166  check_crypto_engine (void)      SECURITY_ATTRIBUTES sec_attr;
167  {      char *p;
168      int ma=1, mi=4, pa=3; /* GPG 1.4.3 */      char *pkr;
169      int rc;  
170        p = get_reg_entry_gpg4win ("gpg.exe");
171      rc = check_gnupg_engine (&ma, &mi, &pa);      if (!p)
172      if (rc == -1) {          return (1);
173          msg_box (NULL, _("Could not read GnuPG version."),      if (file_exist_check (p)) {
174                   _("WinPT Error"), MB_ERR);          free_if_alloc (p);
175          return rc;          return (1);
176      }      }
177      else if (rc) {      free_if_alloc (p);
178          log_box (_("WinPT Error"), MB_ERR,  
179                   _("Sorry, you need a newer GPG version.\n"      p = get_reg_entry_gpg ("HomeDir");
180                     "GPG version %d.%d.%d required GPG version "MIN_GPG_VER),      if (!p || dir_exist_check (p) != 0) {
181                     ma, mi, pa);          free_if_alloc (p);
182          return rc;          p = multi_gnupg_path (0);
183      }      }
184      /* We enable smartcard support for GPG: 1.9 or >= 1.4 */      if (p && dir_exist_check (p)) {
185      if (ma >= 1 && mi >= 4)          memset (&sec_attr, 0, sizeof (sec_attr));
186          scard_support = 1;          sec_attr.nLength = sizeof (sec_attr);
187            if (!CreateDirectory (p, &sec_attr)) {
188      gpgver[0] = ma;              msg_box (NULL, _("Could not create GPG home directory"),
189      gpgver[1] = mi;                       _("WinPT Error"), MB_ERR);
190      gpgver[2] = pa;              free_if_alloc (p);
191      return rc;              return (2);
192  }          }
193        }
194        check_readonly_attr (p);
195  /* Try to load the keyserver config file. If @quiet is 1      pkr = make_filename (p, "pubring", "gpg");
196     do not show any errors. */      free_if_alloc (p);
197  static int      if (!pkr)
198  load_keyserver_conf (int quiet)          return -1;
199  {      if (get_file_size (pkr) == 0) {
200      const char * t;          free_if_alloc (pkr);
201      int rc;          return -1;
202        }
203      if (reg_prefs.kserv_conf)      return 0;
204          t = reg_prefs.kserv_conf;  }
205      else if (!file_exist_check (get_prog_part ("keyserver.conf", 0)))  
206          t = get_prog_part ("keyserver.conf", 0);  
207      else  /* check if the default key from the gpg.conf file is available in the
208          t = "keyserver.conf";     keyring. if not, bail out because encryption won't work properly then. */
209      rc = kserver_load_conf (t);  static int
210      if (rc && !quiet)  check_default_key (gpg_keycache_t kc)
211          msg_box (NULL, winpt_strerror (rc), _("Keyserver"), MB_ERR);  {
212      return rc;      gpgme_key_t key;
213  }      gpgme_error_t err = gpg_error (GPG_ERR_NO_ERROR);
214        char *defkey;
215    
216  /* Enable the mobility mode. */      defkey = get_gnupg_default_key ();
217  static void      if (defkey)
218  enable_mobile_mode (void)          err = gpg_keycache_find_key (kc, defkey, 0, &key);
219  {      else
220      memset (&reg_prefs, 0, sizeof (reg_prefs));          msg_box (NULL, _("No useable secret key found."),
221      reg_prefs.always_trust = 0;                   _("WinPT Warning"), MB_WARN);
222      reg_prefs.auto_backup = 0;      free_if_alloc (defkey);
223      reg_prefs.cache_time = 0;      return err? -1 : 0;
224      reg_prefs.expert = 0;  }
225      reg_prefs.keylist_mode = 1;  
226      reg_prefs.kserv_conf = m_strdup ("keyserver.conf");  
227      reg_prefs.no_zip_mmedia = 1;  /* Return the WinPT program file name (with full pathname). */
228      reg_prefs.use_tmpfiles = 1;  static const char*
229      reg_prefs.word_wrap = 80;  get_prog_part (const char * fname, int use_cwd)
230      reg_prefs.use_viewer = 0; /* XXX */  {
231  }      static char program[512];
232        char currdir[256];
233        char *cmd = NULL;
234  /* Main entry point. */      int j;
235  int WINAPI          
236  WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)      memset (currdir, 0, DIM (currdir));
237  {      memset (program, 0, DIM (program));
238      WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};          
239      HACCEL accel_tab;      if (use_cwd) {
240      int rc, ec, created = 0, use_cwd = 0, nfiles = 0;          GetCurrentDirectory (DIM (currdir)-1, currdir);
241      int first_start = 0, start_gpgprefs = 0;          _snprintf (program, DIM (program)-1, "%s\\%s", currdir, fname);
242      const char * s;      }
243      MSG msg;      else {
244      HWND hwnd = NULL;          cmd = GetCommandLine ();
245            if (cmd == NULL)
246      glob_hinst = hinst;              return NULL;
247            strncpy (currdir, cmd, sizeof (currdir)-1);
248      #ifdef _DEBUG          j = strlen (currdir);
249      gpg_set_debug_mode (1);          while (j--) {
250      debug = 1;              if (currdir[j] == '\\')
251      #endif                  break;
252            }
253      s = PTD_get_version ();          currdir[j] = 0;
254      if (strcmp (s, MIN_PTD_VER)) {          _snprintf (program, DIM (program)-1, "%s\\%s", currdir + 1, fname);
255          log_box (_("Privacy Tray Dynamic (PTD)"), MB_ERR,      }
256                   _("Please update your PTD.dll to the newest version, "      return program;
257                     "the version (%s) you use is too old."), s);  }
258          return 0;  
259      }  
260    /* Check that the underlying crypto engine fullfills the minimal
261      if (gpg_md_selftest ()) {     requirements so all commands work properly. */
262          msg_box (NULL, _("Cryptographic selftest failed."),  static bool
263                   _("WinPT Error"), MB_ERR);  check_crypto_engine (void)
264          return 0;  {
265      }      int ma = 0, mi = 0, pa = 0;
266        int rc;
267      s = gpgme_check_version (MIN_GPGME_VER);  
268      if (!s || !*s) {      rc = check_gnupg_engine (NEED_GPG_VERSION, &ma, &mi, &pa);
269          msg_box (NULL, _("A newer GPGME version is needed; at least "MIN_GPGME_VER),      if (rc == -1) {
270                   _("WinPT Error"), MB_ERR);          msg_box (NULL, _("Could not read GnuPG version."),
271          return 0;                   _("WinPT Error"), MB_ERR);
272      }          return false;
273        }
274      if (cmdline && stristr (cmdline, "--mobile")) {      else if (rc) {
275          msg_box (NULL, "WARNING: mobile modus is not fully implemented yet!",          log_box (_("WinPT Error"), MB_ERR,
276                   "WinPT", MB_INFO);                   _("Sorry, you need a newer GPG version.\n"
277          mobile = 1;                     "GPG version %d.%d.%d required GPG version "NEED_GPG_VERSION),
278      }                     ma, mi, pa);
279            return false;
280      set_default_kserver ();      }
281        /* We enable smartcard support for GPG: >= 2 or >= 1.4.3 */
282      if (!mobile) {      if (ma > 1 || pa >= 3)
283          regist_inst_gnupg (1);          scard_support = 1;
284          regist_inst_winpt (1, &created);  
285      }      gpgver[0] = ma;
286      else {      gpgver[1] = mi;
287          enable_mobile_mode ();      gpgver[2] = pa;
288          /* XXX: ask for GPG path */      return true;
289          created = 1; /* Disable registry writing */  }
290      }  
291    
292      if (!created) {  /* Try to load the keyserver config file. If @quiet is 1
293          memset (&reg_prefs, 0, sizeof (reg_prefs));     do not show any errors. */
294          reg_prefs.use_tmpfiles = 1; /* default */  static int
295          reg_prefs.fm.progress = 0; /* XXX: fix the bug and enable it again */  load_keyserver_conf (int quiet)
296          get_reg_winpt_prefs (&reg_prefs);  {    
297          if (!reg_prefs.no_hotkeys)      const char *t, *conf;
298              hotkeys_modify ();      char *buf;
299      }      int rc;
300    
301      rc = gnupg_check_homedir ();      /* Create $APPDATA\winpt if needed. */
302      if (rc) {      buf = make_special_filename (CSIDL_APPDATA, "winpt", NULL);
303          log_box (_("WinPT Error"), MB_ERR,      if (buf && dir_exist_check (buf) && !CreateDirectory (buf, NULL)) {
304                   _("GPG home directory is not set correctly.\n"          MessageBox (NULL, _("Failed to create WinPT directory"),
305                     "Please check the GPG registry settings:\n%s."),                      _("Keyserver"), MB_ERR);
306                   winpt_strerror (rc));          free_if_alloc (buf);
307          const char * s = get_fileopen_dlg (GetActiveWindow (),          return -1;
308                                             _("Select GPG Public Keyring"),      }
309                                             _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),      free_if_alloc (buf);
310                                             NULL);  
311          if (s != NULL) {      /* Check for $APPDATA\winpt\keyserver.conf */
312              size_t n;      buf = make_special_filename (CSIDL_APPDATA, "winpt\\keyserver.conf", NULL);
313              char * p = strrchr (s, '\\');  
314              if (!p)      conf = get_prog_part ("keyserver.conf", 0);
315                  BUG (0);      if (!file_exist_check (conf))
316              n = p - s;          t = conf;
317              if (n)      else
318              {          t = "keyserver.conf";
319                  char * file = new char[n+1];      if (file_exist_check (t) == 0 && file_exist_check (buf) != 0) {
320                  if (!file)          if (!CopyFile (t, buf, FALSE)) {
321                      BUG (NULL);              MessageBox (NULL, _("Failed to copy the keyserver.conf"),
322                  memset (file, 0, n);                          _("Keyserver"), MB_ERR);
323                  memcpy (file, s, n);              free_if_alloc (buf);
324                  file[n] = '\0';                      return -1;
325                  set_reg_entry_gpg ("HomeDir", file);          }
326                  free_if_alloc (file);          t = buf;
327                  gnupg_check_homedir (); /* change gpgProgram if needed */      }
328              }      else
329          }          t = buf;
330          else {      
331              msg_box (NULL, _("GPG home directory could not be determited."),      rc = kserver_load_conf (t);
332                       _("WinPT Error"), MB_ERR);      if (rc && !quiet)
333              goto start;          msg_box (NULL, winpt_strerror (rc), _("Keyserver"), MB_ERR);
334          }      else {
335      }          free_if_alloc (reg_prefs.kserv_conf);
336            reg_prefs.kserv_conf = m_strdup (t);
337      rc = check_gnupg_prog ();      }
338      if (rc) {      free_if_alloc (buf);
339          if (msg_box (NULL, _("Could not find the GPG binary (gpg.exe).\n"      return rc;
340                               "Do you want to start the GPG preferences to "  }
341                               "correct  this problem?"), _("WinPT Error"),  
342                               MB_INFO|MB_YESNO) == IDYES)  
343              start_gpgprefs = 1;  /* Check if both keyrings are empty. This indicates that
344          else     WinPT should offer to generate a key pair. */
345          {  static bool
346              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);  check_for_empty_keyrings (bool pub_only)
347              return 0;  {
348          }      char *p;
349      }      int n = 0;
350    
351      rc = gnupg_access_files ();      p = get_gnupg_keyring (1, 0);
352      if (!start_gpgprefs && rc) {      if (file_exist_check (p) == 0 && get_file_size (p) == 0)
353          if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS) {          n++;
354              ec = msg_box (NULL,      free_if_alloc (p);
355                  _("Could not access and/or find the public and secret keyring.\n"      if (pub_only)
356                    "If this is an accident, quit the program and fix it.\n\n"          return n == 1? true : false;
357                    "Continue if you want that WinPT offers you more choices.\n"),      p = get_gnupg_keyring (0, 0);
358                    "WinPT", MB_INFO|MB_YESNO);      if (file_exist_check (p) == 0 && get_file_size (p) == 0)
359              if (ec == IDYES)          n++;
360                  first_start = 1;      free_if_alloc (p);
361          }      return n==2? true : false;
362          if (!first_start) {  }
363              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);  
364              return 0;  
365          }  /* Enable the mobility mode. */
366      }  static int
367    enable_mobile_mode (void)
368      if (!first_start) {  {
369          rc = gpg_check_permissions (1);      if (dir_exist_check ("temp") != 0) {
370          if (rc && rc == 2)          if (!CreateDirectory ("temp", NULL)) {
371              gpg_read_only = 1;              MessageBox (NULL, "Could not create mobile temp directory",
372          else if (rc)                          "WinPT Mobile Error", MB_ERR);
373              return 0;              return -1;
374      }          }
375        }
376      load_gettext ();  
377      init_gnupg_table ();      memset (&reg_prefs, 0, sizeof (reg_prefs));
378        reg_prefs.always_trust = 0;
379      nfiles = fm_parse_command_line (cmdline);      reg_prefs.auto_backup = 0;
380      if (nfiles > 0) {      reg_prefs.cache_time = 0;
381          free_gnupg_table ();      reg_prefs.expert = 0;
382          return 0;      reg_prefs.kserv_conf = m_strdup ("keyserver.conf");
383      }      reg_prefs.no_zip_mmedia = 1;
384        reg_prefs.word_wrap = 80;
385      if (cmdline && stristr (cmdline, "--wipe-freespace")) {      reg_prefs.use_viewer = 0; /* XXX */
386          dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_SPACE_SECDEL,      return 0;
387                              GetDesktopWindow(), space_wipefrees_dlg_proc, NULL,  }
388                              _("Wipe Free Space"), IDS_WINPT_SPACE_SECDEL);  
389          free_gnupg_table ();  
390          return 0;  void
391      }  set_default_keyserver (void)
392    {
393      load_keyserver_conf (cmdline? 1 : 0);      char *host = get_reg_entry_keyserver ("Default");
394        char *str_port = get_reg_entry_keyserver ("Default_Port");
395      if (cmdline && (stristr (cmdline, "--keymanager")      WORD port = HKP_PORT;
396                  || stristr (cmdline, "--cardmanager"))) {  
397          update_keycache (GetDesktopWindow ());      if (!host)
398          if (stristr (cmdline, "keymanager"))          keyserver_set_default (NULL, 0);
399              dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_KEYMISC,      else {
400                              GetDesktopWindow(), keymanager_dlg_proc, NULL,          if (str_port && *str_port)
401                              _("Key Manager"), IDS_WINPT_KEYMISC);                port = atoi (str_port);
402          else {          keyserver_set_default (host, port);
403              gpg_card_t crd = gpg_card_load ();      }
404              if (crd)      free_if_alloc (host);
405                  dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_CARD_EDIT,      free_if_alloc (str_port);
406                                    GetDesktopWindow(), card_edit_dlg_proc,  }
407                                    (LPARAM)crd, _("Card Manager"),  
408                                    IDS_WINPT_CARD_EDIT);  
409              gpg_card_release (crd);  /* Display info message that WinPT is now in debug mode. */
410          }  void
411          keycache_release (0);  winpt_debug_msg (void)
412          free_gnupg_table ();  {      
413          return 0;      char output[512];
414      }      char temp[128];
415            
416      CreateMutex (NULL, TRUE, PGM_NAME);      GetTempPath (sizeof temp -1, temp);
417      if (GetLastError () == ERROR_ALREADY_EXISTS) {      _snprintf (output, sizeof output - 1,
418          free_gnupg_table ();          "The GPGME output file is %sgpgme.dbg\n"
419          return 0;          "The WinPT output file is %swinpt.log\n", temp, temp);
420      }      MessageBox (NULL, output, "WinPT now runs in DEBUG MODE", MB_INFO);
421    }
422      if (cmdline) {  
423          if (stristr (cmdline, "--enable-debug") || stristr (cmdline, "--debug")) {  
424              gpg_set_debug_mode (1);  /* Search for insecure ElGamal keys and return the
425              winpt_debug_msg ();     number of founded keys. */
426              debug = 1;  static int
427          }  count_insecure_elgkeys (void)
428      }  {
429        gpg_keycache_t pc;
430      wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));      gpgme_key_t key;
431      rc = RegisterClass (&wc);      int n = 0;
432      if (rc == FALSE) {  
433          msg_box (NULL, _("Could not register window class"),      pc = keycache_get_ctx (1);
434                   _("WinPT Error"), MB_ERR);      while (!gpg_keycache_next_key (pc, 0, &key)) {
435          free_gnupg_table ();          if (key->subkeys->pubkey_algo == GPGME_PK_ELG)
436          return 0;              n++;
437      }      }
438        gpg_keycache_rewind (pc);
439      hwnd = CreateWindow (PGM_NAME,      return n;
440                           PGM_NAME,  }
441                           0, 0, 0, 0, 0,  
442                           NULL,  
443                           NULL,  /* Main entry point. */
444                           hinst,  int WINAPI
445                           NULL);  WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)
446      if (hwnd == NULL) {  {
447          msg_box (NULL, _("Could not create window"), _("WinPT Error"), MB_ERR);      WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};
448          free_gnupg_table ();      HACCEL accel_tab;
449          return 0;      MSG msg;
450      }      HWND hwnd = NULL;
451      glob_hwnd = hwnd;      WORD ver[3], ptdver[4];
452      UpdateWindow (hwnd);      const char *s;
453        int rc, ec, created = 0;
454      if (!first_start && !start_gpgprefs) {      int first_start = 0, start_gpgprefs = 0;
455          gnupg_backup_options ();              int winpt_inst_found = 0;
456          rc = check_crypto_engine ();      int start_manager = 0;    
457          if (rc) {  
458              DestroyWindow (hwnd);      glob_hinst = hinst;
459              free_gnupg_table ();      if (cmdline && stristr (cmdline, "--stop")) {
460              return 0;          hwnd = FindWindow ("WinPT", "WinPT");
461          }          if (hwnd != NULL)
462      }              PostMessage (hwnd, WM_DESTROY, 0, 0);
463                return 0;
464      if (start_gpgprefs) {      }
465          char *ring;  
466          size_t size = 0;      #ifdef _DEBUG
467          DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,      gpg_set_debug_mode (1);
468                          gpgprefs_dlg_proc, NULL);      debug = 1;
469          ring = get_gnupg_keyring (0, !NO_STRICT);      #endif
470          if (gnupg_access_keyring (0) == -1 && get_file_size (ring) == 0)  
471              first_start = 1; /* The keyring is empty! */      get_file_version ("WinPT.exe", &ver[0], &ver[1], &ver[2], &ver[3]);
472          free_if_alloc (ring);      ec = get_file_version ("PTD.dll", &ptdver[0], &ptdver[1],
473      }                                   &ptdver[2], &ptdver[3]);
474        
475      if (first_start) {      if (!ec && (ptdver[0] != ver[0] || ptdver[1] != ver[1]|| ptdver[2] != ver[2])) {
476          struct first_start_s fs;          log_box (_("WinPT Error"), MB_ERR,
477          struct genkey_s c;                   _("The PTD.dll file has a different version than WinPT.exe\n"
478          HWND h;                     "Please update the PTD.dll to version %d.%d.%d"),
479  start:                     ver[0], ver[1], ver[2]);
480          h = GetDesktopWindow ();          return 0;
481          DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, h,      }
482                              gpgprefs_dlg_proc, NULL);  
483          DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_FIRST, h,      if (gpg_md_selftest ()) {
484                          first_run_dlg_proc, (LPARAM)&fs);          msg_box (NULL, _("Cryptographic selftest failed."),
485          switch (fs.choice) {                   _("WinPT Error"), MB_ERR);
486          case SETUP_KEYGEN:          return 0;
487              c.interactive = 1;      }
488              c.first_start = 1;  
489              rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYWIZARD,      s = gpgme_check_version (NEED_GPGME_VERSION);
490                                   h, keygen_wizard_dlg_proc, (LPARAM)&c);      if (!s || !*s) {
491              if (!rc)          msg_box (NULL, _("A newer GPGME version is needed; at least "NEED_GPGME_VERSION),
492                  goto start;                   _("WinPT Error"), MB_ERR);
493              break;          return 0;
494        }
495          case SETUP_IMPORT:  
496              rc = gnupg_copy_keyrings ();      CreateMutex (NULL, TRUE, PGM_NAME);
497              if (rc) {      if (GetLastError () == ERROR_ALREADY_EXISTS)
498                  msg_box (hwnd, winpt_strerror (rc), _("WinPT Error"), MB_ERR);          winpt_inst_found = 1;
499                  goto start;  
500              }      if (cmdline && stristr (cmdline, "--mobile")) {
501              break;          msg_box (NULL, "WARNING: mobile modus is not fully implemented yet!",
502                     "WinPT", MB_INFO);
503          case -1:          mobile_mode_active = 1;
504              DestroyWindow (hwnd);      }
505              free_gnupg_table ();      
506              return 0;      set_default_keyserver ();
507          }      load_gettext ();
508          update_keycache (hwnd);      admin_user = user_is_admin ();
509          check_crypto_engine ();  
510      }      if (!mobile_mode_active) {
511      else {          regist_inst_gnupg (1);
512          gpg_keycache_t c;          regist_inst_winpt (1, &created);
513          update_keycache (hwnd);      }
514          c = keycache_get_ctx (1);      else {
515          if (!c || !gpg_keycache_get_size (c)) {          if (enable_mobile_mode ())
516              gnupg_display_error ();              return 0;
517              msg_box (hwnd, _("The keycache was not initialized or is empty.\n"          created = 1; /* Disable registry writing */
518                               "Please check your GPG config (keyrings, pathes...)"),      }
519                               _("WinPT Error"), MB_ERR);  
520              ec = msg_box (NULL, _("It seems that GPG is not set properly.\n"      if (!created) {
521                                    "Do you want to start the GPG preferences dialog?"),          memset (&reg_prefs, 0, sizeof (reg_prefs));
522                              "WinPT", MB_INFO|MB_YESNO);          reg_prefs.fm.progress = 0; /* XXX: fix the bug and enable it again */
523              if (ec == IDYES) {          get_reg_winpt_prefs (&reg_prefs);
524                  DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,          gnupg_load_config ();
525                                  gpgprefs_dlg_proc, NULL);      }
526                  update_keycache (hwnd);  
527              }      if (is_gpg4win_installed ())
528              else {          load_gpg_env (); /* XXX: check return code. */
529                  DestroyWindow (hwnd);  
530                  free_gnupg_table ();      rc = gnupg_check_homedir ();
531                  return 0;      if (rc) {
532              }          log_box (_("WinPT Error"), MB_ERR,
533          }                   _("GPG home directory is not set correctly.\n"
534          if (check_default_key (c)) {                     "Please check the GPG registry settings:\n%s."),
535              char * p = get_gnupg_default_key ();                   winpt_strerror (rc));
536              log_box (_("WinPT Error"), MB_ERR,          s = get_fileopen_dlg (GetActiveWindow (),
537                       _("Default key from the GPG options file could not be found.\n"                                _("Select GPG Public Keyring"),
538                         "Please check your gpg.conf (options) to correct this:\n\n"                                "GPG Keyrings (*.gpg)\0*.gpg\0\0",
539                         "%s: public key not found."), p? p : "[null]");                                NULL);
540              free_if_alloc (p);          if (s != NULL) {
541              DestroyWindow (hwnd);              size_t n;
542              free_gnupg_table ();              char *p = strrchr (s, '\\');
543              return 0;              if (!p)
544          }                  BUG (0);
545          if (count_insecure_elgkeys ())              n = p - s;
546              DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_ELGWARN, glob_hwnd,              if (n) {
547                              elgamal_warn_dlg_proc, NULL);                  char *file = new char[n+1];
548      }                  if (!file)
549                        BUG (NULL);
550      accel_tab = LoadAccelerators (glob_hinst, (LPCTSTR)IDR_WINPT_ACCELERATOR);                  memset (file, 0, n);
551      keyring_check_last_access (); /* init */                  memcpy (file, s, n);
552      while (GetMessage (&msg, hwnd, 0, 0)) {                  file[n] = '\0';        
553          if (!TranslateAccelerator (msg.hwnd, accel_tab, &msg)) {                  set_reg_entry_gpg ("HomeDir", file);
554              TranslateMessage (&msg);                  free_if_alloc (file);
555              DispatchMessage (&msg);                  gnupg_check_homedir (); /* change gpgProgram if needed */
556          }              }
557      }          }
558                    else {
559      return 0;              msg_box (NULL, _("GPG home directory could not be determined."),
560  }                       _("WinPT Error"), MB_ERR);
561                goto start;
562            }
563        }
564    
565        rc = check_gnupg_prog ();
566        if (rc) {
567            if (msg_box (NULL, _("Could not find the GPG binary (gpg.exe).\n"
568                                 "Do you want to start the GPG preferences to "
569                                 "correct  this problem?"), _("WinPT Error"),
570                                 MB_INFO|MB_YESNO) == IDYES)
571                start_gpgprefs = 1;
572            else {
573                msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
574                return 0;
575            }
576        }
577    
578        rc = gnupg_access_files ();
579        if (!start_gpgprefs && rc) {
580            if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS) {
581                ec = msg_box (NULL,
582                    _("Could not access and/or find the public and secret keyring.\n"
583                      "If this is an accident, quit the program and fix it.\n\n"
584                      "Continue if you want WinPT to offer you more choices.\n"),
585                      "WinPT", MB_INFO|MB_YESNO);
586                if (ec == IDYES)
587                    first_start = 1;
588            }
589            if (!first_start) {
590                msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
591                return 0;
592            }
593        }
594        if (check_for_empty_keyrings (false))
595            first_start = 1;
596    
597        if (!first_start) {
598            rc = gpg_check_permissions (1);
599            if (rc && rc == 2)
600                gpg_read_only = 1;
601            else if (rc)
602                return 0;
603        }
604        
605        init_gnupg_table ();
606    
607        if (fm_parse_command_line (cmdline) > 0) {
608            free_gnupg_table ();
609            return 0;
610        }
611    
612        if (cmdline && stristr (cmdline, "--wipe-freespace")) {
613            dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_SPACE_SECDEL,
614                                GetDesktopWindow(), space_wipefrees_dlg_proc, 0,
615                                _("Wipe Free Space"), IDS_WINPT_SPACE_SECDEL);
616            free_gnupg_table ();
617            return 0;
618        }
619    
620        load_keyserver_conf (cmdline? 1 : 0);
621    
622        if (cmdline && (stristr (cmdline, "--keymanager")
623                    || stristr (cmdline, "--cardmanager"))) {
624            /* If an instance of WinPT is running, just send the command
625               to open the key manager. Otherwise start a new instance.
626             */
627            HWND tray = FindWindow ("WinPT", "WinPT");
628            if (stristr (cmdline, "keymanager"))
629                start_manager = ID_WINPT_KEY;
630            else
631                start_manager = ID_WINPT_CARD;
632            if (tray != NULL) {
633                PostMessage (tray, WM_COMMAND, start_manager, 0);
634                free_gnupg_table ();
635                return 0;
636            }
637        }
638    
639        /* If we found another WinPT instance, just quit to avoid it
640           will be executed twice. */
641        if (winpt_inst_found) {
642            log_debug ("%s", "WinMain: WinPT is already running.");
643            free_gnupg_table ();
644            return 0;
645        }
646    
647        if (cmdline && (stristr (cmdline, "--enable-debug") ||
648                        stristr (cmdline, "--debug"))) {
649            gpg_set_debug_mode (1);
650            winpt_debug_msg ();
651            debug = 1;
652        }
653    
654        wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));
655        rc = RegisterClass (&wc);
656        if (rc == FALSE) {
657            msg_box (NULL, _("Could not register window class"),
658                     _("WinPT Error"), MB_ERR);
659            free_gnupg_table ();
660            return 0;
661        }
662    
663        hwnd = CreateWindow (PGM_NAME,
664                             PGM_NAME,
665                             0, 0, 0, 0, 0,
666                             NULL,
667                             NULL,
668                             hinst,
669                             NULL);
670        if (hwnd == NULL) {
671            msg_box (NULL, _("Could not create window"), _("WinPT Error"), MB_ERR);
672            free_gnupg_table ();
673            return 0;
674        }
675        glob_hwnd = hwnd;
676        UpdateWindow (hwnd);
677    
678        if (!first_start && !start_gpgprefs) {
679            gnupg_backup_options ();        
680            if (!check_crypto_engine ()) {
681                DestroyWindow (hwnd);
682                free_gnupg_table ();
683                return 0;
684            }
685        }
686        
687        if (start_gpgprefs) {
688            DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,
689                            gpgprefs_dlg_proc, 0);
690            if (check_for_empty_keyrings (true))
691                first_start = 1; /* The public keyring is empty! */
692        }
693    
694        if (first_start) {
695            struct genkey_s c;
696            int choice;
697            HWND h;
698    start:
699            h = GetDesktopWindow ();
700            if (!gpg_prefs_ok ())
701                DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, h,
702                                gpgprefs_dlg_proc, 0);
703            choice = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_FIRST, h,
704                                     first_run_dlg_proc, 0);
705            switch (choice) {
706            case SETUP_KEYGEN:
707                c.interactive = 1;
708                c.first_start = 1;
709                rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYWIZARD,
710                                     h, keygen_wizard_dlg_proc, (LPARAM)&c);
711                if (!rc)
712                    goto start;
713                break;
714    
715            case SETUP_IMPORT:
716                rc = gnupg_copy_keyrings ();
717                if (rc) {
718                    msg_box (hwnd, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
719                    goto start;
720                }
721                break;
722    
723            case 0: /* Cancel/Abort. */
724            default:
725                DestroyWindow (hwnd);
726                free_gnupg_table ();
727                return 0;
728            }
729            update_keycache (hwnd);
730            if (!check_crypto_engine ()) {
731                DestroyWindow (hwnd);
732                free_gnupg_table ();
733                return 0;
734            }
735            if (!is_gpg4win_installed ()) {
736                select_language ();
737                load_gettext ();
738            }
739        }
740        else {
741            gpg_keycache_t c, sec_c;
742            update_keycache (hwnd);
743            c = keycache_get_ctx (1);
744            if (!c || !gpg_keycache_get_size (c)) {
745                gnupg_display_error ();
746                msg_box (hwnd, _("The keycache was not initialized or is empty.\n"
747                                 "Please check your GPG config (keyrings, pathes...)"),
748                                 _("WinPT Error"), MB_ERR);
749                ec = msg_box (NULL, _("It seems that GPG is not configured properly.\n"
750                                      "Do you want to start the GPG preferences dialog?"),
751                                "WinPT", MB_INFO|MB_YESNO);
752                if (ec == IDYES) {
753                    DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,
754                                    gpgprefs_dlg_proc, 0);
755                    update_keycache (hwnd);
756                }
757                else {
758                    DestroyWindow (hwnd);
759                    free_gnupg_table ();
760                    return 0;
761                }
762            }
763            sec_c = keycache_get_ctx (0);
764            if (check_default_key (sec_c)) {
765                char *p = get_gnupg_default_key ();
766                log_box (_("WinPT Error"), MB_ERR,
767                         _("Default key (from the GPG config file) could not be found.\n"
768                           "Please check your gpg.conf or set a new default key to correct it:\n\n"
769                           "%s: public key not found."), p? p : "[null]");
770                set_gnupg_default_key (NULL);
771            }
772            if (count_insecure_elgkeys ())
773                DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_ELGWARN, glob_hwnd,
774                                elgamal_warn_dlg_proc, 0);
775        }
776    
777        if (start_manager)
778            PostMessage (hwnd, WM_COMMAND, start_manager, 0);
779    
780        accel_tab = LoadAccelerators (glob_hinst, (LPCTSTR)IDR_WINPT_ACCELERATOR);
781        keyring_check_last_access (); /* init */
782        while (GetMessage (&msg, hwnd, 0, 0)) {
783            if (!TranslateAccelerator (msg.hwnd, accel_tab, &msg)) {
784                TranslateMessage (&msg);
785                DispatchMessage (&msg);
786            }
787        }
788            
789        return 0;
790    }

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