/[winpt]/trunk/Src/WinPT.cpp
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revision 34 by twoaday, Wed Oct 26 11:20:09 2005 UTC revision 231 by twoaday, Tue Jun 20 09:18:44 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 (int prev_inst)  
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              if (!prev_inst)          set_gettext_file ("winpt", nls);
104                  msg_box (NULL, _("Could not initizalize file lock.\n"          free_if_alloc (nls);
105                                   "Native Language Support"),      }
106                           _("WinPT Error"), MB_ERR);  }
107          }  
108          free_if_alloc (nls);  
109          free_if_alloc (file);  /* Return true if the GPG environment is useable. */
110      }  static bool
111  }  gpg_prefs_ok (void)
112    {
113        char *p;
114  /* check if the default key from the gpg.conf file is available in the  
115     keyring. if not, bail out because encryption won't work properly then. */      p = get_reg_entry_gpg4win ("gpg.exe");
116  static int      if (!p || file_exist_check (p) != 0) {
117  check_default_key (gpg_keycache_t kc)          free_if_alloc (p);
118  {          p = get_reg_entry_gpg ("gpgProgram");
119      gpgme_key_t key;          if (!p || file_exist_check (p) != 0) {
120      gpgme_error_t err = GPG_ERR_NO_ERROR;              free_if_alloc (p);
121      char * defkey;              log_debug ("gpg_prefs_ok: could not locate gpg.exe");
122                return false;
123      defkey = get_gnupg_default_key ();          }
124      if (defkey)      }
125          err = gpg_keycache_find_key (kc, defkey, 0, &key);      free_if_alloc (p);
126      free_if_alloc (defkey);      p = get_reg_entry_gpg4win (NULL);    
127      return err? -1 : 0;      if (!p || dir_exist_check (p) != 0) {
128  }          free_if_alloc (p);
129            p = get_reg_entry_gpg ("HomeDir");
130            if (!p || dir_exist_check (p) != 0) {
131  /* Return the WinPT program file name (with full pathname). */              free_if_alloc (p);
132  static const char *              log_debug ("gpg_prefs_ok: could not determine home directory");
133  get_prog_part (const char * fname, int use_cwd)              return false;
134  {          }
135      static char program[512];      }
136      char currdir[256];      free_if_alloc (p);
137      char *cmd = NULL;      return true;
138      int j;  }
139            
140      memset (currdir, 0, DIM (currdir));  
141      memset (program, 0, DIM (program));  /* Check gpg files if they are read-only and ask the user
142               if this should be corrected. */
143      if (use_cwd) {  static void
144          GetCurrentDirectory (DIM (currdir)-1, currdir);  check_readonly_attr (const char *homedir)
145          _snprintf (program, DIM (program)-1, "%s\\%s", currdir, fname);  {
146      }      const char *files[] = {"pubring.gpg", "secring.gpg", "trustdb.gpg", NULL};
147      else {      char *file;
148          cmd = GetCommandLine ();      int i;
149          if (cmd == NULL)  
150              return NULL;      for (i=0; files[i] != NULL; i++) {
151          strncpy (currdir, cmd, sizeof (currdir)-1);          file = make_filename (homedir, files[i], NULL);
152          j = strlen (currdir);          remove_crit_file_attrs (file, 0);
153          while (j--) {          free_if_alloc (file);
154              if (currdir[j] == '\\')      }
155                  break;  }
156          }  
157          currdir[j] = 0;  
158          _snprintf (program, DIM (program)-1, "%s\\%s", currdir + 1, fname);  /* Load the GPG environment. On the first start, some
159      }     checks are performed to find out in what state GPG is.
160      return program;     Return value: 0  everything OK.
161  }                   >0  fatal error.
162                     -1 public keyring is empty or does not exist. */
163    static int
164  /* Check that the underlying crypto engine fullfills the minimal  load_gpg_env (void)
165     requirements so all commands work properly. */  {
166  static int      SECURITY_ATTRIBUTES sec_attr;
167  check_crypto_engine (void)      char *p;
168  {      char *pkr;
169      int ma=1, mi=4, pa=3; /* GPG 1.4.3 */  
170      int rc;      p = get_reg_entry_gpg4win ("gpg.exe");
171        if (!p)
172      rc = check_gnupg_engine (&ma, &mi, &pa);          return (1);
173      if (rc == -1) {      if (file_exist_check (p)) {
174          msg_box (NULL, _("Could not read GnuPG version."),          free_if_alloc (p);
175                   _("WinPT Error"), MB_ERR);          return (1);
176          return rc;      }
177      }      free_if_alloc (p);
178      else if (rc) {  
179          log_box (_("WinPT Error"), MB_ERR,      p = get_reg_entry_gpg ("HomeDir");
180                   _("Sorry, you need a newer GPG version.\n"      if (!p || dir_exist_check (p) != 0) {
181                     "GPG version %d.%d.%d required GPG version "MIN_GPG_VER),          free_if_alloc (p);
182                     ma, mi, pa);          p = multi_gnupg_path (0);
183          return rc;      }
184      }      if (p && dir_exist_check (p)) {
185      /* We enable smartcard support for GPG: 1.9 or >= 1.4 */          memset (&sec_attr, 0, sizeof (sec_attr));
186      if (ma >= 1 && mi >= 4)          sec_attr.nLength = sizeof (sec_attr);
187          scard_support = 1;          if (!CreateDirectory (p, &sec_attr)) {
188                msg_box (NULL, _("Could not create GPG home directory"),
189      gpgver[0] = ma;                       _("WinPT Error"), MB_ERR);
190      gpgver[1] = mi;              free_if_alloc (p);
191      gpgver[2] = pa;              return (2);
192      return rc;          }
193  }      }
194        check_readonly_attr (p);
195        pkr = make_filename (p, "pubring", "gpg");
196  /* Try to load the keyserver config file. If @quiet is 1      free_if_alloc (p);
197     do not show any errors. */      if (!pkr)
198  static int          return -1;
199  load_keyserver_conf (int quiet)      if (get_file_size (pkr) == 0) {
200  {          free_if_alloc (pkr);
201      const char * t;          return -1;
202      int rc;      }
203        return 0;
204      if (reg_prefs.kserv_conf)  }
205          t = reg_prefs.kserv_conf;  
206      else if (!file_exist_check (get_prog_part ("keyserver.conf", 0)))  
207          t = get_prog_part ("keyserver.conf", 0);  /* check if the default key from the gpg.conf file is available in the
208      else     keyring. if not, bail out because encryption won't work properly then. */
209          t = "keyserver.conf";  static int
210      rc = kserver_load_conf (t);  check_default_key (gpg_keycache_t kc)
211      if (rc && !quiet)  {
212          msg_box (NULL, winpt_strerror (rc), _("Keyserver"), MB_ERR);      gpgme_key_t key;
213      return rc;      gpgme_error_t err = gpg_error (GPG_ERR_NO_ERROR);
214  }      char *defkey;
215    
216        defkey = get_gnupg_default_key ();
217  /* Enable the mobility mode. */      if (defkey)
218  static void          err = gpg_keycache_find_key (kc, defkey, 0, &key);
219  enable_mobile_mode (void)      else
220  {          msg_box (NULL, _("No useable secret key found."),
221      memset (&reg_prefs, 0, sizeof (reg_prefs));                   _("WinPT Warning"), MB_WARN);
222      reg_prefs.always_trust = 0;      free_if_alloc (defkey);
223      reg_prefs.auto_backup = 0;      return err? -1 : 0;
224      reg_prefs.cache_time = 0;  }
225      reg_prefs.expert = 0;  
226      reg_prefs.keylist_mode = 1;  
227      reg_prefs.kserv_conf = m_strdup ("keyserver.conf");  /* Return the WinPT program file name (with full pathname). */
228      reg_prefs.no_zip_mmedia = 1;  static const char*
229      reg_prefs.use_tmpfiles = 1;  get_prog_part (const char * fname, int use_cwd)
230      reg_prefs.word_wrap = 80;  {
231      reg_prefs.use_viewer = 0; /* XXX */      static char program[512];
232  }      char currdir[256];
233        char *cmd = NULL;
234  char* multi_gnupg_path (void);      int j;
235            
236  /* Main entry point. */      memset (currdir, 0, DIM (currdir));
237  int WINAPI      memset (program, 0, DIM (program));
238  WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)          
239  {      if (use_cwd) {
240      WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};          GetCurrentDirectory (DIM (currdir)-1, currdir);
241      HACCEL accel_tab;          _snprintf (program, DIM (program)-1, "%s\\%s", currdir, fname);
242      int rc, ec, created = 0, use_cwd = 0, nfiles = 0;      }
243      int first_start = 0, start_gpgprefs = 0;      else {
244      int winpt_inst_found = 0;          cmd = GetCommandLine ();
245      const char *s;          if (cmd == NULL)
246      MSG msg;              return NULL;
247      HWND hwnd = NULL;          strncpy (currdir, cmd, sizeof (currdir)-1);
248            j = strlen (currdir);
249      glob_hinst = hinst;          while (j--) {
250                if (currdir[j] == '\\')
251      #ifdef _DEBUG                  break;
252      gpg_set_debug_mode (1);          }
253      debug = 1;          currdir[j] = 0;
254      #endif          _snprintf (program, DIM (program)-1, "%s\\%s", currdir + 1, fname);
255        }
256      s = PTD_get_version ();      return program;
257      if (strcmp (s, MIN_PTD_VER)) {  }
258          log_box (_("Privacy Tray Dynamic (PTD)"), MB_ERR,  
259                   _("Please update your PTD.dll to the newest version, "  
260                     "the version (%s) you use is too old."), s);  /* Check that the underlying crypto engine fullfills the minimal
261          return 0;     requirements so all commands work properly. */
262      }  static bool
263    check_crypto_engine (void)
264      if (gpg_md_selftest ()) {  {
265          msg_box (NULL, _("Cryptographic selftest failed."),      int ma = 0, mi = 0, pa = 0;
266                   _("WinPT Error"), MB_ERR);      int rc;
267          return 0;  
268      }      rc = check_gnupg_engine (NEED_GPG_VERSION, &ma, &mi, &pa);
269        if (rc == -1) {
270      s = gpgme_check_version (MIN_GPGME_VER);          msg_box (NULL, _("Could not read GnuPG version."),
271      if (!s || !*s) {                   _("WinPT Error"), MB_ERR);
272          msg_box (NULL, _("A newer GPGME version is needed; at least "MIN_GPGME_VER),          return false;
273                   _("WinPT Error"), MB_ERR);      }
274          return 0;      else if (rc) {
275      }          log_box (_("WinPT Error"), MB_ERR,
276                     _("Sorry, you need a newer GPG version.\n"
277      CreateMutex (NULL, TRUE, PGM_NAME);                     "GPG version %d.%d.%d required GPG version "NEED_GPG_VERSION),
278      if (GetLastError () == ERROR_ALREADY_EXISTS)                     ma, mi, pa);
279          winpt_inst_found = 1;          return false;
280        }
281      if (cmdline && stristr (cmdline, "--mobile")) {      /* We enable smartcard support for GPG: >= 2 or >= 1.4.3 */
282          msg_box (NULL, "WARNING: mobile modus is not fully implemented yet!",      if (ma > 1 || pa >= 3)
283                   "WinPT", MB_INFO);          scard_support = 1;
284          mobile = 1;  
285      }      gpgver[0] = ma;
286        gpgver[1] = mi;
287      set_default_kserver ();      gpgver[2] = pa;
288        return true;
289      if (!mobile) {  }
290          regist_inst_gnupg (1);  
291          regist_inst_winpt (1, &created);  
292      }  /* Try to load the keyserver config file. If @quiet is 1
293      else {     do not show any errors. */
294          enable_mobile_mode ();  static int
295          /* XXX: ask for GPG path */  load_keyserver_conf (int quiet)
296          created = 1; /* Disable registry writing */  {
297      }      char *buf;
298        const char *t, *conf;
299      if (!created) {      int rc;
300          memset (&reg_prefs, 0, sizeof (reg_prefs));  
301          reg_prefs.use_tmpfiles = 1; /* default */      /* Create $APPDATA\winpt if needed. */
302          reg_prefs.fm.progress = 0; /* XXX: fix the bug and enable it again */      buf = make_special_filename (CSIDL_APPDATA, "winpt", NULL);
303          get_reg_winpt_prefs (&reg_prefs);      if (buf && dir_exist_check (buf) && !CreateDirectory (buf, NULL)) {
304          if (!reg_prefs.no_hotkeys)          MessageBox (NULL, _("Failed to create WinPT directory"),
305              hotkeys_modify ();                      _("Keyserver"), MB_ERR);
306      }          free_if_alloc (buf);
307            return -1;
308      rc = gnupg_check_homedir ();      }
309      if (rc) {      free_if_alloc (buf);
310          log_box (_("WinPT Error"), MB_ERR,  
311                   _("GPG home directory is not set correctly.\n"      /* Check for $APPDATA\winpt\keyserver.conf */
312                     "Please check the GPG registry settings:\n%s."),      buf = make_special_filename (CSIDL_APPDATA, "winpt\\keyserver.conf", NULL);
313                   winpt_strerror (rc));  
314          const char * s = get_fileopen_dlg (GetActiveWindow (),      conf = get_prog_part ("keyserver.conf", 0);
315                                             _("Select GPG Public Keyring"),      if (!file_exist_check (conf))
316                                             _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),          t = conf;
317                                             NULL);      else
318          if (s != NULL) {          t = "keyserver.conf";
319              size_t n;      if (file_exist_check (t) == 0 && file_exist_check (buf) != 0) {
320              char * p = strrchr (s, '\\');          if (!CopyFile (t, buf, FALSE)) {
321              if (!p)              MessageBox (NULL, _("Failed to copy the keyserver.conf"),
322                  BUG (0);                          _("Keyserver"), MB_ERR);
323              n = p - s;              free_if_alloc (buf);
324              if (n) {              return -1;
325                  char * file = new char[n+1];          }
326                  if (!file)          t = buf;
327                      BUG (NULL);      }
328                  memset (file, 0, n);      else
329                  memcpy (file, s, n);          t = buf;
330                  file[n] = '\0';              
331                  set_reg_entry_gpg ("HomeDir", file);      rc = kserver_load_conf (t);
332                  free_if_alloc (file);      if (rc && !quiet)
333                  gnupg_check_homedir (); /* change gpgProgram if needed */          msg_box (NULL, winpt_strerror (rc), _("Keyserver"), MB_ERR);
334              }      else {
335          }          free_if_alloc (reg_prefs.kserv_conf);
336          else {          reg_prefs.kserv_conf = m_strdup (t);
337              msg_box (NULL, _("GPG home directory could not be determited."),      }
338                       _("WinPT Error"), MB_ERR);      free_if_alloc (buf);
339              goto start;      return rc;
340          }  }
341      }  
342    
343      rc = check_gnupg_prog ();  /* Check if both keyrings are empty. This indicates that
344      if (rc) {     WinPT should offer to generate a key pair. */
345          if (msg_box (NULL, _("Could not find the GPG binary (gpg.exe).\n"  static bool
346                               "Do you want to start the GPG preferences to "  check_for_empty_keyrings (bool pub_only)
347                               "correct  this problem?"), _("WinPT Error"),  {
348                               MB_INFO|MB_YESNO) == IDYES)      char *p;
349              start_gpgprefs = 1;      int n = 0;
350          else  
351          {      p = get_gnupg_keyring (1, 0);
352              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);      if (file_exist_check (p) == 0 && get_file_size (p) == 0)
353              return 0;          n++;
354          }      free_if_alloc (p);
355      }      if (pub_only)
356            return n == 1? true : false;
357      rc = gnupg_access_files ();      p = get_gnupg_keyring (0, 0);
358      if (!start_gpgprefs && rc) {      if (file_exist_check (p) == 0 && get_file_size (p) == 0)
359          if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS) {          n++;
360              ec = msg_box (NULL,      free_if_alloc (p);
361                  _("Could not access and/or find the public and secret keyring.\n"      return n==2? true : false;
362                    "If this is an accident, quit the program and fix it.\n\n"  }
363                    "Continue if you want that WinPT offers you more choices.\n"),  
364                    "WinPT", MB_INFO|MB_YESNO);  
365              if (ec == IDYES)  /* Enable the mobility mode. */
366                  first_start = 1;  static int
367          }  enable_mobile_mode (void)
368          if (!first_start) {  {
369              msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);      if (dir_exist_check ("temp") != 0) {
370              return 0;          if (!CreateDirectory ("temp", NULL)) {
371          }              MessageBox (NULL, "Could not create mobile temp directory",
372      }                          "WinPT Mobile Error", MB_ERR);
373                return -1;
374      if (!first_start) {          }
375          rc = gpg_check_permissions (1);      }
376          if (rc && rc == 2)  
377              gpg_read_only = 1;      memset (&reg_prefs, 0, sizeof (reg_prefs));
378          else if (rc)      reg_prefs.always_trust = 0;
379              return 0;      reg_prefs.auto_backup = 0;
380      }      reg_prefs.cache_time = 0;
381        reg_prefs.expert = 0;
382      load_gettext (winpt_inst_found);      reg_prefs.kserv_conf = m_strdup ("keyserver.conf");
383      init_gnupg_table ();      reg_prefs.no_zip_mmedia = 1;
384        reg_prefs.word_wrap = 80;
385      nfiles = fm_parse_command_line (cmdline);      reg_prefs.use_viewer = 0; /* XXX */
386      if (nfiles > 0) {      return 0;
387          free_gnupg_table ();  }
388          return 0;  
389      }  
390    void
391      if (cmdline && stristr (cmdline, "--wipe-freespace")) {  set_default_keyserver (void)
392          dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_SPACE_SECDEL,  {
393                              GetDesktopWindow(), space_wipefrees_dlg_proc, NULL,      char *host = get_reg_entry_keyserver ("Default");
394                              _("Wipe Free Space"), IDS_WINPT_SPACE_SECDEL);      char *str_port = get_reg_entry_keyserver ("Default_Port");
395          free_gnupg_table ();      WORD port = HKP_PORT;
396          return 0;  
397      }      if (!host)
398            keyserver_set_default (NULL, 0);
399      load_keyserver_conf (cmdline? 1 : 0);      else {
400            if (str_port && *str_port)
401      if (cmdline && (stristr (cmdline, "--keymanager")              port = atoi (str_port);
402                  || stristr (cmdline, "--cardmanager"))) {          keyserver_set_default (host, port);
403          update_keycache (GetDesktopWindow ());      }
404          if (stristr (cmdline, "keymanager"))      free_if_alloc (host);
405              dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_KEYMISC,      free_if_alloc (str_port);
406                              GetDesktopWindow(), keymanager_dlg_proc, NULL,  }
407                              _("Key Manager"), IDS_WINPT_KEYMISC);    
408          else {  
409              gpg_card_t crd = gpg_card_load ();  /* Display info message that WinPT is now in debug mode. */
410              if (crd)  void
411                  dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_CARD_EDIT,  winpt_debug_msg (void)
412                                    GetDesktopWindow(), card_edit_dlg_proc,  {      
413                                    (LPARAM)crd, _("Card Manager"),      char output[512];
414                                    IDS_WINPT_CARD_EDIT);      char temp[128];
415              gpg_card_release (crd);          
416          }      GetTempPath (sizeof temp -1, temp);
417          keycache_release (0);      _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 we found another WinPT instance, just quit to avoid it  
423         will be executed twice. */  
424      if (winpt_inst_found) {  /* Search for insecure ElGamal keys and return the
425          log_debug ("%s", "WinMain: WinPT is already running.");     number of founded keys. */
426          free_gnupg_table ();  static int
427          return 0;  count_insecure_elgkeys (void)
428      }  {
429        gpg_keycache_t pc;
430      if (cmdline) {      gpgme_key_t key;
431          if (stristr (cmdline, "--enable-debug") || stristr (cmdline, "--debug")) {      int n = 0;
432              gpg_set_debug_mode (1);  
433              winpt_debug_msg ();      pc = keycache_get_ctx (1);
434              debug = 1;      while (!gpg_keycache_next_key (pc, 0, &key)) {
435          }          if (key->subkeys->pubkey_algo == GPGME_PK_ELG)
436      }              n++;
437        }
438      wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));      gpg_keycache_rewind (pc);
439      rc = RegisterClass (&wc);      return n;
440      if (rc == FALSE) {  }
441          msg_box (NULL, _("Could not register window class"),  
442                   _("WinPT Error"), MB_ERR);  
443          free_gnupg_table ();  /* Main entry point. */
444          return 0;  int WINAPI
445      }  WinMain (HINSTANCE hinst, HINSTANCE hprev, LPSTR cmdline, int showcmd)
446    {
447      hwnd = CreateWindow (PGM_NAME,      WNDCLASS wc = {0, winpt_main_proc, 0, 0, hinst, 0, 0, 0, 0, PGM_NAME};
448                           PGM_NAME,      HACCEL accel_tab;
449                           0, 0, 0, 0, 0,      MSG msg;
450                           NULL,      HWND hwnd = NULL;
451                           NULL,      int rc, ec, created = 0;
452                           hinst,      int first_start = 0, start_gpgprefs = 0;
453                           NULL);      int winpt_inst_found = 0;
454      if (hwnd == NULL) {      int start_manager = 0;
455          msg_box (NULL, _("Could not create window"), _("WinPT Error"), MB_ERR);      const char *s;
456          free_gnupg_table ();  
457          return 0;      glob_hinst = hinst;
458      }      if (cmdline && stristr (cmdline, "--stop")) {
459      glob_hwnd = hwnd;          hwnd = FindWindow ("WinPT", "WinPT");
460      UpdateWindow (hwnd);          if (hwnd != NULL)
461                PostMessage (hwnd, WM_DESTROY, 0, 0);
462      if (!first_start && !start_gpgprefs) {          return 0;
463          gnupg_backup_options ();              }
464          rc = check_crypto_engine ();  
465          if (rc) {      #ifdef _DEBUG
466              DestroyWindow (hwnd);      gpg_set_debug_mode (1);
467              free_gnupg_table ();      debug = 1;
468              return 0;      #endif
469          }  
470      }      /* XXX
471            WORD ver[3], ptdver[4];
472      if (start_gpgprefs) {      get_file_version ("WinPT.exe", &ver[0], &ver[1], &ver[2], &ver[3]);
473          char *ring;      get_file_version ("PTD.dll", &ptdver[0], &ptdver[1],
474          size_t size = 0;                                   &ptdver[2], &ptdver[3]);
475          DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,      
476                          gpgprefs_dlg_proc, NULL);      if (ptdver[0] != ver[0] || ptdver[1] != ver[1]|| ptdver[2] != ver[2]) {
477          ring = get_gnupg_keyring (0, !NO_STRICT);          log_box (_("WinPT Error"), MB_ERR,
478          if (gnupg_access_keyring (0) == -1 && get_file_size (ring) == 0)                   _("The PTD.dll file has a different version than WinPT.exe\n"
479              first_start = 1; /* The keyring is empty! */                     "Please update the PTD.dll to version %d.%d.%d"),
480          free_if_alloc (ring);                     ver[0], ver[1], ver[2]);
481      }          return 0;
482        }
483      if (first_start) {      */
484          struct first_start_s fs;  
485          struct genkey_s c;      if (gpg_md_selftest ()) {
486          HWND h;          msg_box (NULL, _("Cryptographic selftest failed."),
487  start:                   _("WinPT Error"), MB_ERR);
488          h = GetDesktopWindow ();          return 0;
489          DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, h,      }
490                              gpgprefs_dlg_proc, NULL);  
491          DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_FIRST, h,      s = gpgme_check_version (NEED_GPGME_VERSION);
492                          first_run_dlg_proc, (LPARAM)&fs);      if (!s || !*s) {
493          switch (fs.choice) {          msg_box (NULL, _("A newer GPGME version is needed; at least "NEED_GPGME_VERSION),
494          case SETUP_KEYGEN:                   _("WinPT Error"), MB_ERR);
495              c.interactive = 1;          return 0;
496              c.first_start = 1;      }
497              rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYWIZARD,  
498                                   h, keygen_wizard_dlg_proc, (LPARAM)&c);      CreateMutex (NULL, TRUE, PGM_NAME);
499              if (!rc)      if (GetLastError () == ERROR_ALREADY_EXISTS)
500                  goto start;          winpt_inst_found = 1;
501              break;  
502        if (cmdline && stristr (cmdline, "--mobile")) {
503          case SETUP_IMPORT:          msg_box (NULL, "WARNING: mobile modus is not fully implemented yet!",
504              rc = gnupg_copy_keyrings ();                   "WinPT", MB_INFO);
505              if (rc) {          mobile_mode_active = 1;
506                  msg_box (hwnd, winpt_strerror (rc), _("WinPT Error"), MB_ERR);      }
507                  goto start;      
508              }      set_default_keyserver ();
509              break;      load_gettext ();
510        admin_user = user_is_admin ();
511          case -1:  
512              DestroyWindow (hwnd);      if (!mobile_mode_active) {
513              free_gnupg_table ();          regist_inst_gnupg (1);
514              return 0;          regist_inst_winpt (1, &created);
515          }      }
516          update_keycache (hwnd);      else {
517          check_crypto_engine ();          if (enable_mobile_mode ())
518      }              return 0;
519      else {          created = 1; /* Disable registry writing */
520          gpg_keycache_t c;      }
521          update_keycache (hwnd);  
522          c = keycache_get_ctx (1);      if (!created) {
523          if (!c || !gpg_keycache_get_size (c)) {          memset (&reg_prefs, 0, sizeof (reg_prefs));
524              gnupg_display_error ();          reg_prefs.fm.progress = 0; /* XXX: fix the bug and enable it again */
525              msg_box (hwnd, _("The keycache was not initialized or is empty.\n"          get_reg_winpt_prefs (&reg_prefs);
526                               "Please check your GPG config (keyrings, pathes...)"),          gnupg_load_config ();
527                               _("WinPT Error"), MB_ERR);      }
528              ec = msg_box (NULL, _("It seems that GPG is not set properly.\n"  
529                                    "Do you want to start the GPG preferences dialog?"),      if (is_gpg4win_installed ())
530                              "WinPT", MB_INFO|MB_YESNO);          load_gpg_env (); /* XXX: check return code. */
531              if (ec == IDYES) {  
532                  DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,      rc = gnupg_check_homedir ();
533                                  gpgprefs_dlg_proc, NULL);      if (rc) {
534                  update_keycache (hwnd);          log_box (_("WinPT Error"), MB_ERR,
535              }                   _("GPG home directory is not set correctly.\n"
536              else {                     "Please check the GPG registry settings:\n%s."),
537                  DestroyWindow (hwnd);                   winpt_strerror (rc));
538                  free_gnupg_table ();          s = get_fileopen_dlg (GetActiveWindow (),
539                  return 0;                                _("Select GPG Public Keyring"),
540              }                                "GPG Keyrings (*.gpg)\0*.gpg\0\0",
541          }                                NULL);
542          if (check_default_key (c)) {          if (s != NULL) {
543              char * p = get_gnupg_default_key ();              size_t n;
544              log_box (_("WinPT Error"), MB_ERR,              char *p = strrchr (s, '\\');
545                       _("Default key from the GPG options file could not be found.\n"              if (!p)
546                         "Please check your gpg.conf (options) to correct this:\n\n"                  BUG (0);
547                         "%s: public key not found."), p? p : "[null]");              n = p - s;
548              free_if_alloc (p);              if (n) {
549              DestroyWindow (hwnd);                  char *file = new char[n+1];
550              free_gnupg_table ();                  if (!file)
551              return 0;                      BUG (NULL);
552          }                  memset (file, 0, n);
553          if (count_insecure_elgkeys ())                  memcpy (file, s, n);
554              DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_ELGWARN, glob_hwnd,                  file[n] = '\0';        
555                              elgamal_warn_dlg_proc, NULL);                  set_reg_entry_gpg ("HomeDir", file);
556      }                  free_if_alloc (file);
557                    gnupg_check_homedir (); /* change gpgProgram if needed */
558      accel_tab = LoadAccelerators (glob_hinst, (LPCTSTR)IDR_WINPT_ACCELERATOR);              }
559      keyring_check_last_access (); /* init */          }
560      while (GetMessage (&msg, hwnd, 0, 0)) {          else {
561          if (!TranslateAccelerator (msg.hwnd, accel_tab, &msg)) {              msg_box (NULL, _("GPG home directory could not be determined."),
562              TranslateMessage (&msg);                       _("WinPT Error"), MB_ERR);
563              DispatchMessage (&msg);              goto start;
564          }          }
565      }      }
566            
567      return 0;      rc = check_gnupg_prog ();
568  }      if (rc) {
569            if (msg_box (NULL, _("Could not find the GPG binary (gpg.exe).\n"
570                                 "Do you want to start the GPG preferences to "
571                                 "correct  this problem?"), _("WinPT Error"),
572                                 MB_INFO|MB_YESNO) == IDYES)
573                start_gpgprefs = 1;
574            else {
575                msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
576                return 0;
577            }
578        }
579    
580        rc = gnupg_access_files ();
581        if (!start_gpgprefs && rc) {
582            if (rc == WPTERR_GPG_KEYRINGS || rc == WPTERR_GPG_OPT_KEYRINGS) {
583                ec = msg_box (NULL,
584                    _("Could not access and/or find the public and secret keyring.\n"
585                      "If this is an accident, quit the program and fix it.\n\n"
586                      "Continue if you want that WinPT offers you more choices.\n"),
587                      "WinPT", MB_INFO|MB_YESNO);
588                if (ec == IDYES)
589                    first_start = 1;
590            }
591            if (!first_start) {
592                msg_box (NULL, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
593                return 0;
594            }
595        }
596        if (check_for_empty_keyrings (false))
597            first_start = 1;
598    
599        if (!first_start) {
600            rc = gpg_check_permissions (1);
601            if (rc && rc == 2)
602                gpg_read_only = 1;
603            else if (rc)
604                return 0;
605        }
606        
607        init_gnupg_table ();
608    
609        if (fm_parse_command_line (cmdline) > 0) {
610            free_gnupg_table ();
611            return 0;
612        }
613    
614        if (cmdline && stristr (cmdline, "--wipe-freespace")) {
615            dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_SPACE_SECDEL,
616                                GetDesktopWindow(), space_wipefrees_dlg_proc, 0,
617                                _("Wipe Free Space"), IDS_WINPT_SPACE_SECDEL);
618            free_gnupg_table ();
619            return 0;
620        }
621    
622        load_keyserver_conf (cmdline? 1 : 0);
623    
624        if (cmdline && (stristr (cmdline, "--keymanager")
625                    || stristr (cmdline, "--cardmanager"))) {
626            /* If an instance of WinPT is running, just send the command
627               to open the key manager. Otherwise start a new instance.
628             */
629            HWND tray = FindWindow ("WinPT", "WinPT");
630            if (stristr (cmdline, "keymanager"))
631                start_manager = ID_WINPT_KEY;
632            else
633                start_manager = ID_WINPT_CARD;
634            if (tray != NULL) {
635                PostMessage (tray, WM_COMMAND, start_manager, 0);
636                free_gnupg_table ();
637                return 0;
638            }
639        }
640    
641        /* If we found another WinPT instance, just quit to avoid it
642           will be executed twice. */
643        if (winpt_inst_found) {
644            log_debug ("%s", "WinMain: WinPT is already running.");
645            free_gnupg_table ();
646            return 0;
647        }
648    
649        if (cmdline && (stristr (cmdline, "--enable-debug") ||
650                        stristr (cmdline, "--debug"))) {
651            gpg_set_debug_mode (1);
652            winpt_debug_msg ();
653            debug = 1;
654        }
655    
656        wc.hIcon = LoadIcon (glob_hinst, MAKEINTRESOURCE (IDI_WINPT));
657        rc = RegisterClass (&wc);
658        if (rc == FALSE) {
659            msg_box (NULL, _("Could not register window class"),
660                     _("WinPT Error"), MB_ERR);
661            free_gnupg_table ();
662            return 0;
663        }
664    
665        hwnd = CreateWindow (PGM_NAME,
666                             PGM_NAME,
667                             0, 0, 0, 0, 0,
668                             NULL,
669                             NULL,
670                             hinst,
671                             NULL);
672        if (hwnd == NULL) {
673            msg_box (NULL, _("Could not create window"), _("WinPT Error"), MB_ERR);
674            free_gnupg_table ();
675            return 0;
676        }
677        glob_hwnd = hwnd;
678        UpdateWindow (hwnd);
679    
680        if (!first_start && !start_gpgprefs) {
681            gnupg_backup_options ();        
682            if (!check_crypto_engine ()) {
683                DestroyWindow (hwnd);
684                free_gnupg_table ();
685                return 0;
686            }
687        }
688        
689        if (start_gpgprefs) {
690            DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,
691                            gpgprefs_dlg_proc, 0);
692            if (check_for_empty_keyrings (true))
693                first_start = 1; /* The public keyring is empty! */
694        }
695    
696        if (first_start) {
697            struct genkey_s c;
698            int choice;
699            HWND h;
700    start:
701            h = GetDesktopWindow ();
702            if (!gpg_prefs_ok ())
703                DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, h,
704                                gpgprefs_dlg_proc, 0);
705            choice = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_FIRST, h,
706                                     first_run_dlg_proc, 0);
707            switch (choice) {
708            case SETUP_KEYGEN:
709                c.interactive = 1;
710                c.first_start = 1;
711                rc = DialogBoxParam (glob_hinst, (LPCSTR)IDD_WINPT_KEYWIZARD,
712                                     h, keygen_wizard_dlg_proc, (LPARAM)&c);
713                if (!rc)
714                    goto start;
715                break;
716    
717            case SETUP_IMPORT:
718                rc = gnupg_copy_keyrings ();
719                if (rc) {
720                    msg_box (hwnd, winpt_strerror (rc), _("WinPT Error"), MB_ERR);
721                    goto start;
722                }
723                break;
724    
725            case 0: /* Cancel/Abort. */
726            default:
727                DestroyWindow (hwnd);
728                free_gnupg_table ();
729                return 0;
730            }
731            update_keycache (hwnd);
732            if (!check_crypto_engine ()) {
733                DestroyWindow (hwnd);
734                free_gnupg_table ();
735                return 0;
736            }
737            if (!is_gpg4win_installed ()) {
738                select_language ();
739                load_gettext ();
740            }
741        }
742        else {
743            gpg_keycache_t c, sec_c;
744            update_keycache (hwnd);
745            c = keycache_get_ctx (1);
746            if (!c || !gpg_keycache_get_size (c)) {
747                gnupg_display_error ();
748                msg_box (hwnd, _("The keycache was not initialized or is empty.\n"
749                                 "Please check your GPG config (keyrings, pathes...)"),
750                                 _("WinPT Error"), MB_ERR);
751                ec = msg_box (NULL, _("It seems that GPG is not set properly.\n"
752                                      "Do you want to start the GPG preferences dialog?"),
753                                "WinPT", MB_INFO|MB_YESNO);
754                if (ec == IDYES) {
755                    DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_GPGPREFS, hwnd,
756                                    gpgprefs_dlg_proc, 0);
757                    update_keycache (hwnd);
758                }
759                else {
760                    DestroyWindow (hwnd);
761                    free_gnupg_table ();
762                    return 0;
763                }
764            }
765            sec_c = keycache_get_ctx (0);
766            if (check_default_key (sec_c)) {
767                char *p = get_gnupg_default_key ();
768                log_box (_("WinPT Error"), MB_ERR,
769                         _("Default key (from the GPG config file) could not be found.\n"
770                           "Please check your gpg.conf or set a new default key to correct it:\n\n"
771                           "%s: public key not found."), p? p : "[null]");
772                set_gnupg_default_key (NULL);
773            }
774            if (count_insecure_elgkeys ())
775                DialogBoxParam (glob_hinst, (LPCTSTR)IDD_WINPT_ELGWARN, glob_hwnd,
776                                elgamal_warn_dlg_proc, 0);
777        }
778    
779        if (start_manager)
780            PostMessage (hwnd, WM_COMMAND, start_manager, 0);
781    
782        accel_tab = LoadAccelerators (glob_hinst, (LPCTSTR)IDR_WINPT_ACCELERATOR);
783        keyring_check_last_access (); /* init */
784        while (GetMessage (&msg, hwnd, 0, 0)) {
785            if (!TranslateAccelerator (msg.hwnd, accel_tab, &msg)) {
786                TranslateMessage (&msg);
787                DispatchMessage (&msg);
788            }
789        }
790            
791        return 0;
792    }

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