/[winpt]/trunk/Src/wptGPG.cpp
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revision 36 by werner, Thu Oct 27 15:25:13 2005 UTC revision 304 by twoaday, Wed Mar 21 10:59:31 2007 UTC
# Line 1  Line 1 
1  /* wptGPG.cpp - GnuPG configuration  /* wptGPG.cpp - GnuPG configuration
2   *      Copyright (C) 2001-2004 Timo Schulz   *      Copyright (C) 2001-2007 Timo Schulz
3   *   *
4   * This file is part of WinPT.   * This file is part of WinPT.
5   *   *
# Line 12  Line 12 
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 GNU   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14   * General Public License for more details.   * General Public License for more details.
  *  
  * You should have received a copy of the GNU General Public License  
  * along with WinPT; if not, write to the Free Software Foundation,  
  * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA  
15   */   */
   
16  #ifdef HAVE_CONFIG_H  #ifdef HAVE_CONFIG_H
17  #include <config.h>  #include <config.h>
18  #endif  #endif
19    
20  #include <string.h>  #include <windows.h>
21  #include <string.h>  #include <string.h>
22  #include <stdio.h>  #include <stdio.h>
 #include <windows.h>  
23  #include <shlobj.h>  #include <shlobj.h>
24  #include <ctype.h>  #include <ctype.h>
25  #include <io.h>  #include <io.h>
26    #include <time.h>
27    
28  #include "wptGPG.h"  #include "wptGPG.h"
29  #include "wptGPGCmds.h"  #include "wptGpgCmds.h"
30  #include "wptGPGOptSkel.h"  #include "wptGPGOptSkel.h"
31  #include "wptTypes.h"  #include "wptTypes.h"
32  #include "wptNLS.h"  #include "wptNLS.h"
# Line 40  Line 35 
35  #include "wptW32API.h"  #include "wptW32API.h"
36  #include "wptCrypto.h"  #include "wptCrypto.h"
37    
38  #define GPG_CONF "gpg.conf"  #define GPG_CONF        "gpg.conf"
39    #define GPG_REG_EXE     "gpgProgram"    /* registry name for the binary. */
40  struct gpg_watcher_s {  #define GPG_REG_HOME    "HomeDir"       /* registry name of the home dir. */
41      FILETIME    last_access;  
42    /* Context to monitor GPG file changes. */
43    struct gpg_monitor_s {
44        FILETIME    last_access;    /* last write access. */
45      FILETIME    access;      FILETIME    access;
46      char        *object;      char        *object;        /* name of the object. */
47      int         modified;      char        *fpath_object;  /* full path to the object. */
48        int         modified;       /* 1 = modified. */
49  };  };
50    typedef struct gpg_monitor_s *gpg_monitor_t;
51    
52    static const char *gpg_objs[] = {"pubring.gpg", "secring.gpg", "trustdb.gpg"};
53  /* XXX need to watch for gpg.conf due to the fact keyring entries could be changed */  static gpg_monitor_s gpg_table[3];
 static const char * gpg_objs[] = {"pubring.gpg", "secring.gpg", "trustdb.gpg"};  
 static gpg_watcher_s gpg_table[3];  
54  static int gpg_table_count = DIM (gpg_table);  static int gpg_table_count = DIM (gpg_table);
55    
56  int idea_available = 0;  int idea_available = 0; /* if the IDEA extension is available. */
57    
58    
59  static int check_keyring (char ** r_path);  static int check_keyring (char ** r_path);
60    
61    
62  /* Return the application data folder of the current user. */  /* Return the application data folder of the current user. */
63  static char*  char*
64  multi_gnupg_path (void)  multi_gnupg_path (int strict)
65  {  {
66      static char buf[256+64];      static char buf[MAX_PATH+64];
67      BOOL ec;      BOOL ec;
68    
69      /* MSDN: buf must be at least MAX_PATH=256 bytes */      /* MSDN: buf must be at least MAX_PATH=256 bytes */
70      memset (buf, 0, sizeof (buf));      memset (buf, 0, sizeof (buf));
71      /* XXX: ec should be NOERROR (MSDN) but NOERROR is defined as '0' !? */      /* XXX: ec should be NOERROR (MSDN) but NOERROR is defined as '0' !? */
72      ec = SHGetSpecialFolderPath (HWND_DESKTOP, buf, CSIDL_APPDATA, TRUE);      ec = SHGetSpecialFolderPath (HWND_DESKTOP, buf, CSIDL_APPDATA, TRUE);
73      if (ec != 1)      if (ec != 1) {
74            log_debug ("multi_gnupg_path: SHGetSpecialFolderPath() failed\r\n",
75                       (int)GetLastError ());
76          return NULL;          return NULL;
77        }
78      strcat (buf, "\\gnupg");      strcat (buf, "\\gnupg");
79      if (access (buf, 00))      if (strict && access (buf, 00))
80          return NULL;          return NULL;
81      return m_strdup (buf);      return m_strdup (buf);
82  }  }
83    
84    
85  /* Return the full path of the GnuPG application. First the registry is scanned  /* Return the full path to the GPG home directory. First the 'HomeDir' entry
86     for the entry 'HomeDir'. If it wasn't set, the default dir C:\GNUPG is used.     from the registry is used. Then the default $APPDATA\gnupg path. */
 */  
87  char*  char*
88  get_gnupg_path (void)  get_gnupg_path (void)
89  {  {
90      char *p = NULL, *path = NULL;      char *path;
91        
92      p = get_reg_entry_gpg ("HomeDir");      path = get_reg_entry_gpg (GPG_REG_HOME);
93      if (p) {      if (path && dir_exist_check (path) == 0)
         path = m_strdup (p);  
         free_if_alloc (p);  
94          return path;          return path;
95      }      free_if_alloc (path);
96      else      return multi_gnupg_path (1);
         return multi_gnupg_path ();  
     return m_strdup ("c:\\gnupg");  
97  }  }
98    
99    
# Line 104  get_gnupg_path (void) Line 101  get_gnupg_path (void)
101     A value of NULL indicates an error. */     A value of NULL indicates an error. */
102  char*  char*
103  get_gnupg_cfgfile (void)  get_gnupg_cfgfile (void)
104  {      {
105      char *p = NULL, *optfile = NULL, *path = NULL;      char *optfile;
106      size_t nlen = 0;      char *path;
107    
108      path = get_gnupg_path ();      path = get_gnupg_path ();
109      if (!path)      if (!path)
110          return NULL;          return NULL;
111      p = get_reg_entry_gpg ("OptFile");      optfile = make_filename (path, GPG_CONF, NULL);
     if (p && !strcmp (p, "")) {  
         nlen = strlen (path) + 64;  
         optfile = new char[nlen + 1];  
         if (!optfile)  
             BUG (0);  
         _snprintf (optfile, nlen, "%s\\"GPG_CONF, path);  
     }  
     else if (p) {  
         nlen = strlen( p ) + 4;  
         optfile = new char[nlen + 1];  
         if (!optfile)  
             BUG (NULL);  
         _snprintf (optfile, nlen, "%s", p);  
     }  
     else {  
         nlen = strlen (path) + 64;  
         optfile = new char[nlen + 1];  
         if( !optfile)  
             BUG (NULL);  
         _snprintf (optfile, nlen, "%s\\"GPG_CONF, path);  
     }  
112      free_if_alloc (path);      free_if_alloc (path);
113      free_if_alloc (p);  
114      return optfile;      return optfile;
115  }  }
116    
117    
118    static char*
119    get_keyring_from_conf (const char *fname, int pub)
120    {
121        config_file_t opt;
122        conf_option_t e;
123        char *kring = NULL;
124        int rc;
125    
126        rc = parse_config (fname, &opt);
127        if (rc)
128            return NULL;
129        if (pub)
130            e = conf_find_option (opt, "keyring");
131        else
132            e = conf_find_option (opt, "secret-keyring");
133        if (e != NULL)
134            kring = m_strdup (e->val);
135        release_config (opt);
136    
137        return kring;
138    }
139    
140    
141  /* Return the full path of the keyring. If @pub is 1, the public  /* Return the full path of the keyring. If @pub is 1, the public
142     keyring is return, otherwise the secret keyring. */     keyring is return, otherwise the secret keyring. */
143  char*  char*
144  get_gnupg_keyring (int pub, int strict)  get_gnupg_keyring (int pub, int strict)
145  {      {    
146      char *optfile = NULL;      char *optfile;
147      char *path = NULL;      char *path;
148      char *keyring = NULL;      char *keyring;
149    
150      path = get_gnupg_path ();      path = get_gnupg_path ();
151      if (!path)      if (!path)
152          return NULL;          return NULL;
153      keyring = make_filename (path, pub? "pubring" : "secring", "gpg");      keyring = make_filename (path, pub? "pubring" : "secring", "gpg");
154      if (!strict && !file_exist_check (keyring)) {      if (strict && !file_exist_check (keyring)) {
155          free_if_alloc (path);          free_if_alloc (path);
156          return keyring;          return keyring;
157      }      }
158      if (file_exist_check (keyring) || get_file_size (keyring) == 0) {      else if (!strict) {
159            free_if_alloc (path);
160            return keyring;
161        }
162        if (file_exist_check (keyring) ||
163            pub && get_file_size (keyring) == 0) {
164          free_if_alloc (keyring);          free_if_alloc (keyring);
165          optfile = make_filename (path, GPG_CONF, NULL);          optfile = make_filename (path, GPG_CONF, NULL);
166          keyring = get_gnupg_keyring_from_options (optfile, pub);          keyring = get_keyring_from_conf (optfile, pub);
167            free_if_alloc (optfile);
168      }      }
169      free_if_alloc (path);      free_if_alloc (path);
170      free_if_alloc (optfile);      
171      return keyring;      return keyring;
172  }  }
173    
# Line 173  get_gnupg_keyring (int pub, int strict) Line 178  get_gnupg_keyring (int pub, int strict)
178  char*  char*
179  get_gnupg_prog (void)  get_gnupg_prog (void)
180  {      {    
181      char *p;      char *path;
182      char *pgm = NULL;      char *pgm;
     size_t nlen = 0;  
183    
184      p = get_reg_entry_gpg ("gpgProgram");      pgm = get_reg_entry_gpg (GPG_REG_EXE);
185      if (!p) {      if (pgm)
186          char *path = get_gnupg_path ();          return pgm;
187          if (!path)      path = get_gnupg_path ();
188              return NULL;      if (!path)
189          pgm = make_filename (path, "gpg", "exe");          return NULL;    
190          free_if_alloc (path);      pgm = make_filename (path, "gpg", "exe");
191      }      free_if_alloc (path);
     else {  
         pgm = m_strdup (p);  
         free_if_alloc (p);  
     }  
192      return pgm;      return pgm;
193  }  }
194    
# Line 196  get_gnupg_prog (void) Line 196  get_gnupg_prog (void)
196  /* Retrieve the first usable secret key from cache.  /* Retrieve the first usable secret key from cache.
197     If no usable was found, @ret_no_useable is 1.     If no usable was found, @ret_no_useable is 1.
198     Return value: the keyid of the secret key. */     Return value: the keyid of the secret key. */
199  static char *  static char*
200  default_key_from_cache (int *ret_no_useable)  default_key_from_cache (int *ret_no_useable)
201  {  {    
202      const char * s;      gpgme_key_t key, pk;
203      char * keyid = NULL;      gpg_keycache_t sec, pub;
204      gpgme_key_t key;      const char *s;
205      gpg_keycache_t sec = keycache_get_ctx (0);      char *keyid = NULL;
206    
207      if (!sec)      sec = keycache_get_ctx (0);
208          BUG (0);      pub = keycache_get_ctx (1);
209      gpg_keycache_rewind (sec);      gpg_keycache_rewind (sec);
210      while (!gpg_keycache_next_key (sec, 1, &key)) {      while (!gpg_keycache_next_key (sec, 1, &key)) {
211          if (key_is_useable (key)) {          if (key_is_useable (key) && !get_pubkey (key->subkeys->keyid, &pk)) {
212              s = key->subkeys->keyid;              s = key->subkeys->keyid;
213              if (s)                  if (s)
214                  keyid = m_strdup (s+8);                  keyid = m_strdup (s+8);
215              break;              break;
216          }          }
217      }      }
218      if (!keyid) {      if (!keyid)
219          *ret_no_useable = 1;          *ret_no_useable = 1;
         msg_box (NULL, _("No useable secret key found."), _("GPG Error"), MB_ERR);  
     }  
220      return keyid;      return keyid;
221  }  }
222    
223    
224    /* Load the gpg.conf and search for some options
225       and store the result in the global preference context.
226       Return value: 0 on success. */
227    int
228    gnupg_load_config (void)
229    {    
230        config_file_t opt;
231        char *conf;
232        int rc = 0;
233        
234        conf = get_gnupg_cfgfile ();
235        if (!conf)
236            return -1;
237        if (parse_config (conf, &opt)) {
238            free_if_alloc (conf);
239            return -1;
240        }
241        free_if_alloc (conf);
242        if (conf_find_option (opt, "ask-cert-level"))
243            reg_prefs.gpg.ask_cert_level = 1;
244        if (conf_find_option (opt, "ask-cert-expire"))
245            reg_prefs.gpg.ask_cert_expire = 1;
246        /* The 'textmode' option for GPG is useful for text files
247           but it breaks the output of any binary data. Thus we return
248           a warning here to inform the user that binary output is broken. */
249        if (conf_find_option (opt, "textmode"))
250            rc = -2;
251        release_config (opt);
252    
253        return rc;
254    }
255    
256    
257    /* handle the case the user added a '!' to force a subkey. */
258    static char*
259    extract_keyid (const char *val)
260    {    
261        size_t len = strlen (val);
262    
263        if (len > 1 && val[len-1] == '!')
264            return substr (val, 0, len-1);
265        return m_strdup (val);
266    }
267    
268    
269    /* Return the default key.
270       This can be either a substring or a key ID. */
271  char*  char*
272  get_gnupg_default_key (void)  get_gnupg_default_key (void)
273  {      {    
274      gpg_optfile_t opt = NULL;      config_file_t opt = NULL;
275      gpg_option_t e;      conf_option_t e;
276      char * keyid = NULL, * optfile = NULL;      char *keyid = NULL, *optfile = NULL;
277      int no_usable=0, rc = 0;      int no_usable=0;
278    
279      optfile = get_gnupg_cfgfile ();      optfile = get_gnupg_cfgfile ();
280      if (!optfile)      if (!optfile)
281          return default_key_from_cache (&no_usable);          return default_key_from_cache (&no_usable);
282      rc = parse_gpg_options (optfile, &opt);      if (parse_config (optfile, &opt)) {
283      if (rc) {          free_if_alloc (optfile);
284          free_if_alloc( optfile );          return default_key_from_cache (&no_usable);
         return default_key_from_cache( &no_usable );  
     }  
     e = find_option( opt, "default-key" );  
     if ( e )  
         keyid = m_strdup( e->val );  
     if( !e ) {  
         e = find_option( opt, "local-user" );  
         if( e )  
             keyid = m_strdup( e->val );  
     }  
     if( !e ) {  
         e = find_option( opt, "encrypt-to" );  
         if( e )  
             keyid = m_strdup( e->val );  
285      }      }
286      free_if_alloc( optfile );      /* First we search for config entries which specify a default key. */
287      release_gpg_options( opt );          e = conf_find_option (opt, "default-key");
288        if (!e)
289            e = conf_find_option (opt, "local-user");
290        if (e)
291            keyid = extract_keyid (e->val);
292    
293      if( !keyid )      free_if_alloc (optfile);
294          keyid = default_key_from_cache( &no_usable );      release_config (opt);
295    
296        /* If no entry in the config has been found, we get a key
297           from the key cache. */
298        if (!keyid)
299            keyid = default_key_from_cache (&no_usable);
300      return keyid;      return keyid;
301  } /* get_gnupg_default_key */  }
302    
303    
304    /* Check if GPG4WIN is available and if so, use the
305       install path to figure out where the gpg.exe is. */
306    char*
307    check_for_gpg4win (void)
308    {
309        return get_reg_entry_gpg4win ("gpg.exe");
310    }
311    
312    
313  /* Check if the gpg application (exe file) is available. */  /* Check if the gpg application (exe file) is available. */
314  int  int
315  check_gnupg_prog (void)  check_gnupg_prog (void)
316  {  {
317      char *pgm = NULL;      char *gpgexe = NULL;
318      int rc = 0;      int rc = 0;
319    
320      pgm = get_gnupg_prog ();      gpgexe = get_gnupg_prog ();
321      if (!pgm)      if (!gpgexe || file_exist_check (gpgexe)) {
322          rc = WPTERR_GPG_EXEFILE;          free_if_alloc (gpgexe);
323      if (file_exist_check (pgm))          gpgexe = check_for_gpg4win ();
324          rc = WPTERR_GPG_EXEFILE;          if (!gpgexe || file_exist_check (gpgexe))
325      free_if_alloc (pgm);              rc = WPTERR_GPG_EXEFILE;
326            else
327                set_reg_entry_gpg (GPG_REG_EXE, gpgexe);
328        }
329        free_if_alloc (gpgexe);
330      return rc;      return rc;
331  }  }
332    
333    
334  static int  static int
335  parse_version_nr (const char * buf, int *major, int *minor, int *patch)  parse_version_nr (const char *buf, int *major, int *minor, int *patch)
336  {  {
337      char tmp[8];      char tmp[8];
338      int i;      int i;
# Line 288  parse_version_nr (const char * buf, int Line 341  parse_version_nr (const char * buf, int
341      while (buf && *buf != '.' && i < 8)      while (buf && *buf != '.' && i < 8)
342          tmp[i++] = *buf++;          tmp[i++] = *buf++;
343      tmp[i] = 0; buf++;      tmp[i] = 0; buf++;
344      *major = atol( tmp );      *major = atoi (tmp);
345      i=0;      i=0;
346      while (buf && *buf != '.' && i < 8)      while (buf && *buf != '.' && i < 8)
347          tmp[i++] = *buf++;          tmp[i++] = *buf++;
348      tmp[i] = 0; buf++;      tmp[i] = 0; buf++;
349      *minor = atol (tmp);      *minor = atoi (tmp);
350      i=0;      i=0;
351      while (buf && isdigit( *buf ) && i < 8)      while (buf && isdigit (*buf) && i < 8)
352          tmp[i++] = *buf++;          tmp[i++] = *buf++;
353      tmp[i] = 0;      tmp[i] = 0;
354      *patch = atol (tmp);      *patch = atoi (tmp);
355      return 0;      return 0;
356  }  }
357    
# Line 307  parse_version_nr (const char * buf, int Line 360  parse_version_nr (const char * buf, int
360     version given in @r_major.@r_minor.@r_patch. On success these     version given in @r_major.@r_minor.@r_patch. On success these
361     variables contain the GPG version which is installed. */     variables contain the GPG version which is installed. */
362  int  int
363  check_gnupg_engine (int *r_major, int *r_minor, int *r_patch)  check_gnupg_engine (const char *need_gpg_ver,
364                        int *r_major, int *r_minor, int *r_patch)
365  {  {
366      gpgme_ctx_t ctx;      gpgme_ctx_t ctx;
367      gpgme_engine_info_t inf;      gpgme_engine_info_t inf;
368      char * eng = NULL;      char *eng = NULL;
369      int major=0, minor=0, patch=0;      int major=0, minor=0, patch=0;
370      int rc;      int need_major = 0, need_minor = 0, need_patch = 0;
371                int rc = 1;
372    
373        /* Convert the needed GPG version to the integer format. */
374        if (parse_version_nr (need_gpg_ver,
375                              &need_major, &need_minor, &need_patch))
376            return 1;
377        
378      gpgme_new (&ctx);      gpgme_new (&ctx);
379      inf = gpgme_ctx_get_engine_info (ctx);      inf = gpgme_ctx_get_engine_info (ctx);
380      if (!inf) {      if (!inf) {
381          gpgme_release (ctx);          gpgme_release (ctx);
382          return -1;          return -1;
383      }      }
384    
385      /* We need to exec GPG again to find out if IDEA is available. */      /* We need to exec GPG again to find out if IDEA is available. */
386      if (gpg_get_version (&eng))      if (gpg_get_version (&eng)) {
387            gpgme_release (ctx);
388          return -1;          return -1;
389        }
390      if (strstr (eng, "IDEA"))      if (strstr (eng, "IDEA"))
391          idea_available = 1;          idea_available = 1;
392      free (eng);      safe_free (eng);
393      rc = parse_version_nr( inf->version, &major, &minor, &patch );      if (parse_version_nr (inf->version, &major, &minor, &patch)) {
     if( rc ) {  
394          gpgme_release (ctx);          gpgme_release (ctx);
395          return rc;          return 1;
396      }      }
397      if (major < *r_major || minor < *r_minor)      gpgme_release (ctx);
398          rc = 1;  
399      else {      if (major > need_major)
         if (patch < *r_patch)  
             rc = 1;  
400          rc = 0;          rc = 0;
401      }      else if (major == need_major && minor > need_minor)      
402            rc = 0;
403        else if (major == need_major && minor == need_minor &&
404                 patch >= need_patch)
405            rc = 0;
406    
407        /* Return the current GPG version. */
408      *r_major = major;      *r_major = major;
409      *r_minor = minor;      *r_minor = minor;
410      *r_patch = patch;      *r_patch = patch;
# Line 346  check_gnupg_engine (int *r_major, int *r Line 412  check_gnupg_engine (int *r_major, int *r
412  }  }
413    
414    
415  int  /* Count the keyring entries in the gpg.conf file.
416  check_gnupg_cfgfile (const char *fname, int *r_secrings, int *r_pubrings)     Return value: 0 on success. */
417    static int
418    cfgfile_count_keyrings (const char *fname, int *r_secrings, int *r_pubrings)
419  {  {
420      gpg_optfile_t opt;          config_file_t opt;    
421      gpg_option_t e;      conf_option_t e;
     int rc = 0;  
422    
423      *r_secrings = 0;      *r_secrings = 0;
424      *r_pubrings = 0;      *r_pubrings = 0;
     rc = parse_gpg_options( fname, &opt );  
     if( rc )  
         return WPTERR_FILE_OPEN;  
425    
426      for( e = opt->list; e; e = e->next ) {      if (parse_config (fname, &opt))
427          if( !strcmp( e->name, "secret-keyring" ) ) {          return WPTERR_FILE_OPEN;
428              if( !file_exist_check( e->val ) )      for (e = opt->list; e; e = e->next) {
429            if (!strcmp (e->name, "secret-keyring")) {
430                if (!file_exist_check (e->val))
431                  r_secrings[0]++;                  r_secrings[0]++;
432          }          }
433          else if( !strcmp( e->name, "keyring" ) ) {          else if (!strcmp (e->name, "keyring")) {
434              if( !file_exist_check( e->val ) )              if (!file_exist_check (e->val))
435                  r_pubrings[0]++;                  r_pubrings[0]++;
436          }          }
437      }      }
438      release_gpg_options( opt );      release_config (opt);
439      return 0;      return 0;
440  } /* check_gnupg_cfgfile */  }
441    
442    
443  /*  /* Usually GPG creates the pubring.gpg, secring.gpg on
444   * Check if both keyrings are located in the gnupg home directory.     the first start, but to make sure they always exist
445   */     create them empty if needed. */
446    static void
447    create_empty_keyring (int _pub)
448    {
449        char *name;
450        FILE *fp;
451    
452        name = get_gnupg_keyring (_pub, 0);
453        if (name && file_exist_check (name) != 0) {
454            fp = fopen (name, "ab");
455            if (fp != NULL)
456                fclose (fp);
457        }
458        free_if_alloc (name);
459    }
460    
461    
462    /* Check if both keyrings are located in the gnupg home directory. */
463  int  int
464  gnupg_access_files (void)  gnupg_access_files (void)
465  {  {
# Line 385  gnupg_access_files (void) Line 468  gnupg_access_files (void)
468      int secrings = 0, pubrings = 0;      int secrings = 0, pubrings = 0;
469      char *optfile;      char *optfile;
470    
471        create_empty_keyring (1);
472      if (gnupg_access_keyring (1))      if (gnupg_access_keyring (1))
473          rc = WPTERR_GPG_KEYRINGS;          rc = WPTERR_GPG_KEYRINGS;
474      else      else
475          pubring_ok = 1;          pubring_ok = 1;
476    
477        create_empty_keyring (0);
478      if (gnupg_access_keyring (0))      if (gnupg_access_keyring (0))
479          rc = WPTERR_GPG_KEYRINGS;          rc = WPTERR_GPG_KEYRINGS;
480      else      else
481          secring_ok = 1;          secring_ok = 1;
482    
483      if (!pubring_ok || !secring_ok) {      if (!pubring_ok || !secring_ok) {
484          optfile = get_gnupg_cfgfile ();          optfile = get_gnupg_cfgfile ();
485          if (!optfile)          if (!optfile)
486              return WPTERR_GPG_KEYRINGS;              return WPTERR_GPG_KEYRINGS;
487          rc = file_exist_check (optfile);          rc = file_exist_check (optfile);
488          if (!rc && get_file_size(optfile) > 0) {          if (!rc && get_file_size (optfile) > 0) {
489              rc = check_gnupg_cfgfile (optfile, &secrings, &pubrings);              rc = cfgfile_count_keyrings (optfile, &secrings, &pubrings);
490              if (!rc && secrings && pubrings) {              if (!rc && secrings > 0 && pubrings > 0) {
491                  free_if_alloc (optfile);                  free_if_alloc (optfile);
492                  return 0; /* found two keyrings in the option file */                  return 0; /* found two keyrings in the option file */
493              }              }
# Line 417  gnupg_access_files (void) Line 503  gnupg_access_files (void)
503          rc = WPTERR_GPG_KEYRINGS;          rc = WPTERR_GPG_KEYRINGS;
504      }      }
505      return rc;      return rc;
506  } /* gnupg_access_files */  }
507    
508    
509  static int  static int
510  create_gpg_options (void)  create_gpg_conf (void)
511  {  {
512      FILE *fp;      FILE *fp;
513      char *s, *optfile;      char *s, *optfile;
514    
515      s = get_gnupg_path( );      s = get_gnupg_path ();
516      if( s == NULL )      if (!s)
517          return WPTERR_FILE_CREAT;          return WPTERR_FILE_CREAT;
518      optfile = make_filename( s, GPG_CONF, NULL );      optfile = make_filename (s, GPG_CONF, NULL);
519      fp = fopen( optfile, "wb" );      fp = fopen (optfile, "wb");
520      if( fp == NULL ) {        if (!fp) {
521          return WPTERR_FILE_CREAT;          return WPTERR_FILE_CREAT;
522          goto fail;          goto fail;
523      }      }
524      fwrite( options_skel, 1, strlen( options_skel ), fp );      fwrite (options_skel, 1, strlen (options_skel), fp);
525      fclose( fp );      fclose (fp);
526    
527  fail:  fail:
528      free_if_alloc( s );      free_if_alloc (s);
529      free_if_alloc( optfile );      free_if_alloc (optfile);
530      return 0;      return 0;
531  } /* create_gpg_options */  }
532    
533    
534  /*  /* Return the contents of the options file as a char buf. */
535   * Return the contents of the options file as a char buf.  char*
  */  
 char *  
536  get_gnupg_config (void)  get_gnupg_config (void)
537  {  {
538      FILE * fp;      FILE *fp;
539      char * p = NULL, * optfile = NULL;      char *p = NULL, *optfile = NULL;
540      int fsize, rc = 0;      int fsize;
541                    
542      optfile = get_gnupg_cfgfile ();      optfile = get_gnupg_cfgfile ();
543      if( optfile == NULL )      if (!optfile)
544          return NULL;          return NULL;
545      fsize = get_file_size( optfile );      fsize = get_file_size (optfile);
546      if( !fsize ) {      if (!fsize) {
547          rc = create_gpg_options( );          if (create_gpg_conf ())
         if ( rc )  
548              return NULL;              return NULL;
549          fsize = get_file_size( optfile );          fsize = get_file_size (optfile);
550      }      }
551      if( fsize > 100000 )      if (fsize > 100000)
552          goto leave; /* too large */          goto leave; /* too large */
553      p = new char[fsize+1];      p = new char[fsize+1];
554      if( p == NULL )      if (!p)
555          BUG( NULL );          BUG (NULL);
556      fp = fopen( optfile, "rb" );      fp = fopen( optfile, "rb" );
557      if( fp == NULL ) {      if (!fp) {
558          free_if_alloc( p );          free_if_alloc (p);
559          return NULL;          return NULL;
560      }      }
561      fread( p, 1, fsize, fp );      fread (p, 1, fsize, fp);
562      fclose( fp );      fclose (fp);
563      p[fsize] = '\0';      p[fsize] = '\0';
564      free_if_alloc( optfile );      free_if_alloc (optfile);
565    
566  leave:  leave:
567      return p;      return p;
568  } /* get_gnupg_config */  }
569    
570    
571    /* Set the default key in the gpg.conf.
572       If @key is NULL, the entry will be deleted. */
573  int  int
574  set_gnupg_default_key (const char * key)  set_gnupg_default_key (const char *key)
575  {  {
576      gpg_optfile_t opt;      config_file_t opt;
577      gpg_option_t e;      conf_option_t e;
578      char *optfile = NULL;      char *optfile = NULL;
579      int rc = 0;      int rc = 0;
580    
581      optfile = get_gnupg_cfgfile ();      optfile = get_gnupg_cfgfile ();
582      if (!optfile)      if (!optfile)
583          return -1;          return WPTERR_FILE_OPEN;
584      rc = parse_gpg_options (optfile, &opt);      rc = parse_config (optfile, &opt);
585      if( rc ) {      if (rc) {
586          free_if_alloc (optfile);          free_if_alloc (optfile);
587          return -1;          return WPTERR_GENERAL;
588      }      }
589      e = find_option (opt, "default-key");      e = conf_find_option (opt, "default-key");
590      if (e) {      if (e && !key)
591            e->used = 0;
592        else if (e) {
593          free_if_alloc (e->val);          free_if_alloc (e->val);
594          e->val = m_strdup (key);          e->val = m_strdup (key);
595          e->used = 1;          e->used = 1;
596      }      }
597      else      else if (key)
598          add_entry (opt, ENTRY_MULTI, "default-key", key);          conf_add_entry (opt, ENTRY_MULTI, "default-key", key);
599      rc = commit_gpg_options (optfile, opt);      rc = commit_config (optfile, opt);
600    
601      free_if_alloc (optfile);      free_if_alloc (optfile);
602      release_gpg_options (opt);      release_config (opt);
   
603      return rc;      return rc;
604  } /* set_gnupg_default_key */  }
605    
606    
607  /*  /* Set the contents of the options file. */
  * Set the contents of the options file.  
  */  
608  int  int
609  set_gnupg_options( const char *buf, size_t buflen )  set_gnupg_options (const char *buf, size_t buflen)
610  {  {
611      FILE *fp;        FILE *fp;  
612      char *optfile = NULL;      char *optfile;
613    
614      optfile = get_gnupg_cfgfile( );      optfile = get_gnupg_cfgfile ();
615      if( optfile == NULL )      if (!optfile)
616          return WPTERR_FILE_CREAT;          return WPTERR_FILE_CREAT;
617    
618      fp = fopen( optfile, "wb" );      fp = fopen (optfile, "wb");
619      if( fp == NULL ) {      if (!fp) {
620          free_if_alloc( optfile );          free_if_alloc (optfile);
621          return WPTERR_FILE_CREAT;          return WPTERR_FILE_CREAT;
622      }      }
623      fwrite( buf, 1, buflen, fp );      fwrite (buf, 1, buflen, fp);
624      fclose( fp );      fclose (fp);
625      free_if_alloc( optfile );      free_if_alloc (optfile);
626      return 0;      return 0;
627  } /* set_gnupg_options */  }
628    
629  /*  
630   * Check if the line contains a valid GPG argument.  /* Check if the parameter for the option @buf is an existing file name.
631   */     Return value: 0 on success. */
632    static int
633    check_arg_file_exist (const char *buf)
634    {
635        const char *s = "load-extension ";
636    
637        /* XXX: this is a bit of a kludge because we just
638                detect errors for 'load-extension'. */
639        if (!strncmp (buf, s, strlen (s)))
640            buf += strlen (s);
641        else
642            return 0;
643        return file_exist_check (buf);
644    }
645    
646    
647    /* Check if the line contains a valid GPG argument. */
648  static int  static int
649  check_line( const char *buf )  check_line (const char *buf)
650  {  {
651      int j, len;      int j, len;
652      int rc = 0;      int rc = 0;
653    
654      if( *buf == '#' || *buf == '\r' || *buf == '\n' )      if (*buf == '#' || *buf == '\r' || *buf == '\n')
655          return 1;          return 1;
656      rc = 0;      for (j = 0; valid_gpg_args[j]; j++) {
657      for ( j = 0; valid_gpg_args[j]; j++ ) {          len = strlen (valid_gpg_args[j]);
658          len = strlen( valid_gpg_args[j] );          if (!strncmp (valid_gpg_args[j], buf, len))
659          if( !strncmp( valid_gpg_args[j], buf, len ) )              rc = 1;
             rc = 1;      
660      }      }
   
661      return rc;      return rc;
662  } /* check_line */  }
663    
664    
665  int  int
666  check_gnupg_options( const char *buf )  check_gnupg_options (const char *buf, int showerr)
667  {  {
668      char line[1024];      char line[1024];
669      int nbytes = 0;      int nbytes = 0, lineno=0;
670      unsigned j;      unsigned j;
671                    
672      for ( j = 0; j<strlen( buf ) && j < sizeof(line); j++ ) {      for  (j = 0; j < strlen (buf) && j < DIM (line); j++) {
673          line[nbytes++] = buf[j];          line[nbytes++] = buf[j];
674          if ( buf[j] == '\n' || j == ( strlen( buf ) - 1 ) ) {          if (buf[j] == '\n' || j == (strlen (buf) - 1)) {
675              line[nbytes] = '\0';              line[nbytes] = '\0';
676              if( !check_line( line ) ) {              lineno++;
677                  msg_box( NULL, line, "options", MB_OK );              if (!check_line (line)) {
678                    if (showerr)
679                        log_box ("GPG Config File", MB_ERR,
680                                 "gpg.conf:%d: invalid keyword '%s'",
681                                 lineno, line);
682                  return 1;                        return 1;      
683              }              }
684                if (check_arg_file_exist (line))
685                    return WPTERR_FILE_EXIST;
686              nbytes = 0;              nbytes = 0;
687          }                }
688      }      }
   
689      return 0;      return 0;
690  } /* check_gnupg_options */  }
691    
692    
693  /* Store the last access of the file inside the watcher @ctx. */  /* Store the last access of the file inside the watcher @ctx. */
694  static int  static int
695  get_last_gnupg_access (gpg_watcher_s *ctx)  get_last_gnupg_access (gpg_monitor_t ctx)
696  {  {
697      HANDLE fd;      HANDLE fd;
     char *path;  
     char *file;  
698    
699      path = get_gnupg_path ();      fd = CreateFile (ctx->fpath_object, GENERIC_READ, FILE_SHARE_READ,
700      file =  make_filename (path, ctx->object, NULL);                       NULL, OPEN_EXISTING, 0, NULL);
701      fd = CreateFile (file, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_ALWAYS, 0, NULL);      if (fd == INVALID_HANDLE_VALUE)
     if (fd == INVALID_HANDLE_VALUE) {  
         free_if_alloc (path);  
         free_if_alloc (file);  
702          return WPTERR_FILE_OPEN;          return WPTERR_FILE_OPEN;
     }  
703      GetFileTime (fd, NULL, NULL, &ctx->access);      GetFileTime (fd, NULL, NULL, &ctx->access);
704      CloseHandle (fd);      CloseHandle (fd);
     free_if_alloc (path);  
     free_if_alloc (file);  
705      return 0;      return 0;
706  }  }
707    
708    
709  /* Check if the file inside watcher @ctx was modified. */  /* Check if the file inside watcher @ctx was modified. */
710  static void  static void
711  check_last_gnupg_access (gpg_watcher_s *ctx)  check_last_gnupg_access (gpg_monitor_t ctx)
712  {                {              
713      ctx->modified = 0;      ctx->modified = 0;
714    
# Line 621  check_last_gnupg_access (gpg_watcher_s * Line 716  check_last_gnupg_access (gpg_watcher_s *
716          ctx->last_access.dwLowDateTime != ctx->access.dwLowDateTime)          ctx->last_access.dwLowDateTime != ctx->access.dwLowDateTime)
717          ctx->modified = 1;          ctx->modified = 1;
718    
719        if (ctx->last_access.dwLowDateTime == 0)
720            ctx->modified = 0;
721    
722      ctx->last_access.dwLowDateTime = ctx->access.dwLowDateTime;      ctx->last_access.dwLowDateTime = ctx->access.dwLowDateTime;
723      ctx->last_access.dwHighDateTime = ctx->access.dwHighDateTime;      ctx->last_access.dwHighDateTime = ctx->access.dwHighDateTime;
724  }  }
725    
726    
727  /* Init GPG watcher table for all monitored files. */  /* Init GPG monitor table for all monitored files. */
728  void  void
729  init_gnupg_table (void)  init_gnupg_table (void)
730  {        {      
731      char *p;      char *path;
732      int j;      int j;
733    
734        path = get_gnupg_path ();
735      for (j = 0; j < gpg_table_count; j++) {      for (j = 0; j < gpg_table_count; j++) {
736          p = gpg_table[j].object = m_strdup (gpg_objs[j]);          gpg_table[j].object = m_strdup (gpg_objs[j]);
737          if (!p)          gpg_table[j].fpath_object = make_filename (path, gpg_objs[j], NULL);
             BUG (NULL);  
738          memset (&gpg_table[j].access, 0, sizeof (FILETIME));          memset (&gpg_table[j].access, 0, sizeof (FILETIME));
739          memset (&gpg_table[j].last_access, 0, sizeof (FILETIME));          memset (&gpg_table[j].last_access, 0, sizeof (FILETIME));
740          gpg_table[j].modified = 0;          gpg_table[j].modified = 0;
741      }      }
742        free_if_alloc (path);
743  }  }
744    
745    
746    /* Release the GPG monitor table. */
747  void  void
748  free_gnupg_table (void)  free_gnupg_table (void)
749  {  {
750      int j;      int j;
751    
752      for (j=0; j < gpg_table_count; j++)      for (j=0; j < gpg_table_count; j++) {
753          free_if_alloc (gpg_table[j].object);          free_if_alloc (gpg_table[j].object);
754            free_if_alloc (gpg_table[j].fpath_object);
755        }
756  }  }
757    
758    
759  /* Return the amount of files modified since the last call. */  /* Return the amount of files modified since the last call. */
760  int  int
761  keyring_check_last_access (void)  keyring_check_last_access (void)
762  {        {
763      int rc, j;      int nfiles;
764        int pos;
765    
766      rc = 0;      nfiles = 0;
767      for (j = 0; j < gpg_table_count; j++) {      for (pos = 0; pos < gpg_table_count; pos++) {
768          get_last_gnupg_access (&gpg_table[j]);          get_last_gnupg_access (&gpg_table[pos]);
769          check_last_gnupg_access (&gpg_table[j]);          check_last_gnupg_access (&gpg_table[pos]);
770          if (gpg_table[j].modified)          if (gpg_table[pos].modified)
771              rc++;                    nfiles++;
772      }      }
773    
774      return rc;      return nfiles;
775  }  }
776    
777    
# Line 691  gnupg_check_file_ext (const char *fname, Line 794  gnupg_check_file_ext (const char *fname,
794              *r_type = PGP_SIG;              *r_type = PGP_SIG;
795          return "SIGNED";          return "SIGNED";
796      }      }
797      else if  (!stricmp (file_ext, ".gpg") || !stricmp (file_ext, ".pgp")) {      else if  (!stricmp (file_ext, ".gpg") ||
798                  !stricmp (file_ext, ".pgp")) {
799          if (r_type)          if (r_type)
800              *r_type = PGP_MESSAGE;              *r_type = PGP_MESSAGE;
801          return "ENCRYPTED";          return "ENCRYPTED";
# Line 700  gnupg_check_file_ext (const char *fname, Line 804  gnupg_check_file_ext (const char *fname,
804  }  }
805    
806    
807  char*  /* Check if the device where file @fname is stored on, is write-protected. */
 get_gnupg_keyring_from_options (const char * fname, int pub)  
 {  
     gpg_optfile_t opt;  
     gpg_option_t e;  
     char * kring = NULL;  
     int rc = 0;  
   
     rc = parse_gpg_options (fname, &opt);  
     if (rc)  
         return NULL;  
     if (pub)  
         e = find_option (opt, "keyring");  
     else  
         e = find_option (opt, "secret-keyring");  
     if (e)  
         kring = m_strdup (e->val);  
     release_gpg_options (opt);  
   
     return kring;  
 }  
   
   
   
 /* XXX: does not work with write-protected floppies */  
808  static int  static int
809  my_access (const char * fname)  check_file_access (const char *fname, int mode)
810  {  {
811      HANDLE hd;      HANDLE hd;
812      hd = CreateFile (fname, GENERIC_WRITE, FILE_SHARE_WRITE,  
813        if (!mode)
814            mode = FILE_SHARE_WRITE;
815        hd = CreateFile (fname, GENERIC_WRITE, mode,
816                       NULL, OPEN_EXISTING, 0, NULL);                       NULL, OPEN_EXISTING, 0, NULL);
817      if (hd == INVALID_HANDLE_VALUE)      if (hd == INVALID_HANDLE_VALUE)
818          return -1;          return -1;
# Line 737  my_access (const char * fname) Line 820  my_access (const char * fname)
820      return 0;      return 0;
821  }  }
822    
823        
824    /* Check the device where the file @fname is stored on, is either
825       write-protected or if the file is already opened by another process
826       exclusively. And as a result, we cannot use the file for output. */
827    int
828    gpg_check_file_permissions (const char *fname, int mode)
829    {
830        int api_mode;
831        
832        switch (mode) {
833        case 0: api_mode = FILE_SHARE_READ; break;
834        case 1: api_mode = FILE_SHARE_WRITE; break;
835        case 2: api_mode = FILE_SHARE_WRITE|FILE_SHARE_READ; break;
836        default: api_mode = FILE_SHARE_READ; break;
837        }
838    
839        return check_file_access (fname, api_mode);
840    }
841    
842    
843    /* Check the file permissions of the public keyring.
844       If @showmsg is 1 output a message in case of errors.
845       Return value: 1 if read-only attribute
846                     2 if file is opened by another process exclusively. */
847  int  int
848  gpg_check_permissions (int showmsg)  gpg_check_permissions (int showmsg)
849  {  {
850      char * p, * name = NULL;      char *p = NULL;
851        char *name = NULL;
852      int failed = 0, ans=0, attrs=0;      int failed = 0, ans=0, attrs=0;
853    
854      p = get_gnupg_path ();      p = get_gnupg_path ();
855      check_keyring (&p);      if (p && check_keyring (&p)) {
     if (p) {  
856          name = make_filename (p, "pubring", "gpg");          name = make_filename (p, "pubring", "gpg");
         free_if_alloc (p);  
857          if ((attrs=GetFileAttributes (name)) & FILE_ATTRIBUTE_READONLY) {          if ((attrs=GetFileAttributes (name)) & FILE_ATTRIBUTE_READONLY) {
858              ans = msg_box (NULL,              ans = msg_box (NULL,
859                             _("The selected keyring has the read-only file\n"                             _("The selected keyring has the read-only file\n"
# Line 764  gpg_check_permissions (int showmsg) Line 869  gpg_check_permissions (int showmsg)
869                  }                  }
870              }              }
871              else if (ans == IDNO) {              else if (ans == IDNO) {
872                  /*                  /* All commands with write access will be disabled. */
                 msg_box (NULL, _("All commands with write access to the keyring\n"  
                                  "will be disabled."), _("GPG Information"), MB_INFO);  
                 */  
873                  failed = 1;                  failed = 1;
874              }              }
875          }          }
876          if (my_access (name)) {          if (gpg_check_file_permissions (name, 1)) {
877              if (showmsg)              if (showmsg)
878                  msg_box (NULL,                  msg_box (NULL,
879                  _("You do not have file access to modify the contents of\n"                  _("You do not have file access to modify the contents of\n"
# Line 783  gpg_check_permissions (int showmsg) Line 885  gpg_check_permissions (int showmsg)
885              failed = 2;              failed = 2;
886          }          }
887      }      }
888        free_if_alloc (p);
889      free_if_alloc (name);      free_if_alloc (name);
890      return failed;      return failed;
891  } /* gpg_check_permissions */  }
892    
893    
894  /* Check the GPG home dir. If all methods failed, try to  /* Check the GPG home dir. First try to read the 'HomeDir' registry entry,
895     create the default folder. */     then check for $APPDATA\gnupg. Create the dir if it does not exists. */
896  static int  int
897  check_homedir (void)  gnupg_check_homedir (void)
898  {        {      
899      char *homedir = NULL;      char *homedir;
900      int yes = 0;      int val;
901        int rc = 0;
902    
903      homedir = get_reg_entry_gpg ("HomeDir");  #ifdef WINPT_MOBILE
904      if (!homedir)      return 0;
905          homedir = multi_gnupg_path ();  #endif
906    
907        homedir = get_reg_entry_gpg (GPG_REG_HOME);
908      if (!homedir)      if (!homedir)
909          homedir = m_strdup ("c:\\gnupg");          homedir = multi_gnupg_path (0);
910      if (homedir) {      if (homedir) {
911          if (GetFileAttributes (homedir) == 0xFFFFFFFF) {          if (GetFileAttributes (homedir) == 0xFFFFFFFF) {
912              yes = log_box (_("Preferences"), MB_YESNO,              val = log_box (_("Preferences"), MB_YESNO,
913                             _("%s does not exit.\n"                             _("%s does not exit.\n"
914                               "Do you want to create this directory?"), homedir);                               "Do you want to create this directory?"), homedir);
915              if (yes == IDYES) {              if (val == IDYES) {
916                  BOOL ec = CreateDirectory (homedir, NULL);                  if (!CreateDirectory (homedir, NULL))
917                  free_if_alloc (homedir);                      rc = WPTERR_DIR_CREAT;
                 if (ec == FALSE)  
                     return WPTERR_DIR_CREAT;  
                 return 0;  
918              }              }
919              return WPTERR_DIR_OPEN;              else
920          }                  rc = WPTERR_DIR_OPEN;
         free_if_alloc (homedir);  
     }  
     return 0;  
 }  
   
   
 int  
 gnupg_check_homedir (void)  
 {        
     char *homedir = NULL;  
     char *prog = NULL;  
     int rc = 0, ec = 0;  
       
     rc = check_homedir ();  
     if (rc)  
         return rc;  
     if ((homedir = get_reg_entry_gpg ("HomeDir")) &&  
         !(prog = get_reg_entry_gpg ("gpgProgram" ))) {  
         prog = make_filename (homedir, "gpg", "exe");  
         if (file_exist_check (prog) == 0) {  
             rc = set_reg_entry_gpg ("gpgProgram", prog);  
             if (rc)  
                 goto fail;  
921          }          }
922          free_if_alloc (homedir);          free_if_alloc (homedir);
         free_if_alloc (prog);  
         return rc;  
923      }      }
     if ((prog = get_reg_entry_gpg ("gpgProgram"))  
         && file_exist_check (prog)) {  
         free_if_alloc (prog);  
         homedir = get_reg_entry_gpg ("HomeDir");  
         if (!homedir) {  
             rc = WPTERR_GENERAL;  
             goto fail;  
         }  
         prog = make_filename (homedir, "gpg", "exe");  
         if (file_exist_check (prog) == 0) {  
             rc = set_reg_entry_gpg ("gpgProgram", prog);  
             if (rc)  
                 goto fail;  
             free_if_alloc (prog);  
             return rc;  
         }  
     }  
       
     /* Change the return code if homedir doesn't exist or if the program  
        doesn't exist. Note that exist_checks return 0 to suggest existance. */  
     if ((!homedir || dir_exist_check (homedir)))  
         rc = WPTERR_GENERAL;  
       
 fail:  
     free_if_alloc (homedir);  
     free_if_alloc (prog);  
924      return rc;      return rc;
925  } /* gnupg_check_homedir */  }
926    
927    
928  int  int
929  gnupg_copy_keyrings (void)  gnupg_copy_keyrings (void)
930  {  {
931      const char * pring, * sring;      const char *pring, *sring;
932      char * file = NULL, * path = NULL;      char *file = NULL, *path = NULL;
933      int id = 0, rc = 0;      int id = 0, rc = 0;
934      HWND hwnd;      HWND hwnd;
935            
# Line 886  gnupg_copy_keyrings (void) Line 938  gnupg_copy_keyrings (void)
938          return WPTERR_GENERAL;          return WPTERR_GENERAL;
939      hwnd = GetDesktopWindow ();      hwnd = GetDesktopWindow ();
940    
941      pring = get_filename_dlg (hwnd, FILE_OPEN, _("Please choose your public keyring"),      pring = get_fileopen_dlg (hwnd, _("Please choose your Public Keyring"),
942                                _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),NULL);                                "GPG Keyrings (*.gpg)\0*.gpg\0\0",NULL);
943      if (!pring) {      if (!pring) {
944          msg_box (hwnd, _("No keyring was chosen. Exit."), _("WinPT Error"), MB_ERR);          msg_box (hwnd, _("No keyring was chosen. Exit."),
945                     _("WinPT Error"), MB_ERR);
946          free_if_alloc (path);          free_if_alloc (path);
947          return WPTERR_GENERAL;          return WPTERR_GENERAL;
948      }      }
949      file = make_filename (path, "pubring", "gpg");      file = make_filename (path, "pubring", "gpg");
950      if (file_exist_check (file) == 0) {      if (file_exist_check (file) == 0) {
951          id = msg_box (hwnd, _("Overwrite old public keyring?"), "WinPT", MB_INFO|MB_YESNO);          id = msg_box (hwnd, _("Overwrite old public keyring?"),
952                          "WinPT", MB_INFO|MB_YESNO);
953          if (id == IDNO)          if (id == IDNO)
954              goto fail;              goto fail;
955      }      }
# Line 906  gnupg_copy_keyrings (void) Line 960  gnupg_copy_keyrings (void)
960      }      }
961      free_if_alloc (file);      free_if_alloc (file);
962    
963      sring = get_filename_dlg (hwnd, FILE_OPEN, _("Please choose your secret keyring"),      sring = get_fileopen_dlg (hwnd, _("Please choose your Secret Keyring"),
964                                _("GPG Keyrings (*.gpg)\0*.gpg\0\0"), NULL);                                "GPG Keyrings (*.gpg)\0*.gpg\0\0", NULL);
965      if (!sring) {      if (!sring) {
966          msg_box( NULL, _("No keyring was chosen. Exit."), _("WinPT Error"), MB_ERR );          msg_box (NULL, _("No keyring was chosen. Exit."),
967                     _("WinPT Error"), MB_ERR);
968          return WPTERR_GENERAL;          return WPTERR_GENERAL;
969      }      }
970      file = make_filename (path, "secring", "gpg");      file = make_filename (path, "secring", "gpg");
971      if (file_exist_check (file) == 0) {      if (file_exist_check (file) == 0) {
972          id = msg_box (hwnd, _("Overwrite old secret keyring?"), "WinPT", MB_INFO|MB_YESNO);          id = msg_box (hwnd, _("Overwrite old secret keyring?"),
973          if( id == IDNO )                        "WinPT", MB_INFO|MB_YESNO);
974            if (id == IDNO)
975              goto fail;              goto fail;
976      }      }
977      if (!CopyFile (sring, file, FALSE)) {      if (!CopyFile (sring, file, FALSE)) {
978          msg_box( NULL, _("Could not copy file."), _("WinPT Error"), MB_ERR);          msg_box (NULL, _("Could not copy file."), _("WinPT Error"), MB_ERR);
979          rc = WPTERR_FILE_READ;          rc = WPTERR_FILE_READ;
980      }      }
981    
# Line 927  fail: Line 983  fail:
983      free_if_alloc (file);      free_if_alloc (file);
984      free_if_alloc (path);      free_if_alloc (path);
985      return rc;      return rc;
986  } /* gnupg_import_keyrings */  }
987    
988    
989    /* Backup the gpg.conf file. */
990  void  void
991  gnupg_backup_options (void)  gnupg_backup_options (void)
992  {  {
993      char *cfgfile = NULL;      char *cfgfile;
994      char bak[512];      char bak[MAX_PATH+32];
995    
996      cfgfile = get_gnupg_cfgfile ();      cfgfile = get_gnupg_cfgfile ();
997      if (cfgfile == NULL)      if (!cfgfile)
998          return;          return;
999      _snprintf (bak, DIM (bak)-1, "%s.bak", cfgfile);      _snprintf (bak, DIM (bak)-1, "%s.bak", cfgfile);
1000      CopyFile (cfgfile, bak, FALSE);      CopyFile (cfgfile, bak, FALSE);
1001      free_if_alloc (cfgfile);      free_if_alloc (cfgfile);
1002  } /* gnupg_backup_options */  }
   
1003    
1004    
1005  static int  static int
1006  backup_one_file (const char *srcpath, const char *srcn,  backup_one_file (const char *srcpath, const char *srcn,
1007                   const char *dstpath, const char *dstn)                   const char *dstpath, const char *dstn)
1008  {  {
1009      char * src, * dst;      char *src, *dst;
1010      BOOL rc;      BOOL rc;
1011    
1012      src = make_filename (srcpath, srcn, "gpg");      src = make_filename (srcpath, srcn, "gpg");
     if (!src)  
         BUG (NULL);  
1013      dst = make_filename (dstpath, dstn, "gpg");      dst = make_filename (dstpath, dstn, "gpg");
     if (!dst)  
         BUG (NULL);  
1014      rc = CopyFile (src, dst, FALSE);      rc = CopyFile (src, dst, FALSE);
1015      free_if_alloc (src);      free_if_alloc (src);
1016      free_if_alloc (dst);      free_if_alloc (dst);
1017      if (!rc)      if (!rc) {
     {  
1018          log_box (_("Backup"), MB_ERR, _("Backup keyring \"%s\" failed"), srcn);          log_box (_("Backup"), MB_ERR, _("Backup keyring \"%s\" failed"), srcn);
1019          return WPTERR_GENERAL;          return WPTERR_GENERAL;
1020      }      }
1021      return 0;      return 0;
1022  } /* backup_one_file */  }
1023    
1024    
1025    /* Figure out first public keyring which is not empty.
1026       Return value: 1 on success. */
1027  static int  static int
1028  check_keyring (char ** r_path)  check_keyring (char **r_path)
1029  {  {
1030      char * p;      char *p;
1031      char * opt, * name;      char *opt;
1032        char *name;
1033    
1034      if (!*r_path)      if (!*r_path)
1035          return 0;          return 0;
1036      p = make_filename (*r_path, "pubring", "gpg");      p = make_filename (*r_path, "pubring", "gpg");
1037      if (!p || get_file_size (p) > 0)      if (get_file_size (p) <= 0)
1038          return 0;          return 0;
1039    
1040      opt = get_gnupg_cfgfile ();      opt = get_gnupg_cfgfile ();
1041      if (!opt)      if (!opt)
1042          BUG (0);          BUG (0);
1043      name = get_gnupg_keyring_from_options (opt, 1);      name = get_keyring_from_conf (opt, 1);
1044      free_if_alloc (opt);      free_if_alloc (opt);
1045      free_if_alloc (p);      free_if_alloc (p);
1046      if (!name)      if (!name)
1047          return 0;          return 0;
1048      p = strrchr (name, '\\');      p = strrchr (name, '\\');
1049      if (!p)      if (!p) {
     {  
1050          free_if_alloc (name);          free_if_alloc (name);
1051          return 0;                return 0;      
1052      }      }
# Line 1006  check_keyring (char ** r_path) Line 1059  check_keyring (char ** r_path)
1059  }  }
1060    
1061    
1062    /* Return a temp name based on the day of the week. */
1063  static char*  static char*
1064  get_backup_name (const char *templ)  get_backup_name (const char *templ)
1065  {  {
1066      struct tm *tm;      struct tm *tm;
1067        const char *fmt;
1068      char *p;      char *p;
1069        time_t t;
1070    
1071      time_t t = time (NULL);      t = time (NULL);
1072      tm = localtime (&t);      tm = localtime (&t);
1073      p = new char [strlen (templ) + 8 + 1];      fmt = "%s-%d";
1074        p = new char [strlen (templ) + strlen (fmt) + 8 + 1];
1075      if (!p)      if (!p)
1076          BUG (0);          BUG (0);
1077      sprintf (p, "%s-%d", templ, tm->tm_wday % 3);      sprintf (p, fmt, templ, tm->tm_wday % 3);
1078      return p;      return p;
1079  }  }
1080    
1081    
1082    /* Make backups of all keyrings. The public key ring is rotated like
1083       this pubring-%d.gpg.
1084       If @auto_backup is false, no action is performed.
1085       @include_secr indicated if the backup includes the secret keyring. */
1086  void  void
1087  gnupg_backup_keyrings (void)  gnupg_backup_keyrings (int auto_backup, int backup_mode, int include_secr)
1088  {  {
1089      char *srcpath = NULL, *dstpath = NULL;      char *srcpath, *dstpath;
1090      char *name=NULL;      char *name;
1091      int rc, bakmode=0;      int rc;
1092    
1093      if (!reg_prefs.auto_backup)      if (!auto_backup)
1094          return;          return;
1095      bakmode = reg_prefs.backup.mode;      srcpath = get_gnupg_path ();
     srcpath =  get_gnupg_path ();  
1096      check_keyring (&srcpath);      check_keyring (&srcpath);
1097      if (bakmode == 1) {      if (backup_mode == 1) {
1098            /* If the backup mode uses the home directory the source
1099               and destination folder will be the same. */
1100          dstpath = get_gnupg_path ();          dstpath = get_gnupg_path ();
1101          check_keyring (&dstpath);          check_keyring (&dstpath);
1102      }      }
1103      else if (bakmode == 2) {      else if (backup_mode == 2) {
1104          char * tmpfile;          char *tmpfile;
1105          FILE * fp;          FILE *fp;
1106    
1107          dstpath = m_strdup (reg_prefs.backup.path);          dstpath = m_strdup (reg_prefs.backup.path);
         if (!dstpath)  
             BUG (0);  
1108          tmpfile = make_filename (reg_prefs.backup.path, "test", "tmp");          tmpfile = make_filename (reg_prefs.backup.path, "test", "tmp");
1109          fp = fopen (tmpfile, "wb");          fp = fopen (tmpfile, "wb");
1110          if (!fp)          if (!fp)
1111              rc = log_box (_("Backup"), MB_WARN|MB_RETRYCANCEL,              rc = log_box (_("Backup"), MB_WARN|MB_RETRYCANCEL,
1112                            _("The backup drive '%s' does not seems to accessable.\n"                            _("The backup drive '%s' does not seems to be accessable.\n"
1113                              "Please insert/check the drive to continue."), dstpath);                              "Please insert/check the drive to continue."), dstpath);
1114          else {          else {
1115              rc = 0;              rc = 0;
1116              fclose (fp);              fclose (fp);
1117              unlink (tmpfile);              DeleteFile (tmpfile);
1118          }          }
1119          free_if_alloc (tmpfile);          free_if_alloc (tmpfile);
1120          if (!fp || rc == IDCANCEL)          if (!fp || rc == IDCANCEL) {
1121                free_if_alloc (dstpath);
1122                free_if_alloc (srcpath);
1123              return;              return;
1124            }
1125      }      }
1126      else {      else {
1127          log_box (_("Backup"), MB_ERR, _("Invalid backup mode %d"), bakmode);          log_box (_("Backup"), MB_ERR, _("Invalid backup mode %d"), backup_mode);
1128            free_if_alloc (srcpath);
1129          return;          return;
1130      }      }
1131      name = get_backup_name ("pubring-bak");      name = get_backup_name ("pubring-bak");
1132      rc = backup_one_file (srcpath, "pubring", dstpath, name);      rc = backup_one_file (srcpath, "pubring", dstpath, name);
1133      if (!rc)      if (!rc && include_secr)
1134          rc = backup_one_file (srcpath, "secring", dstpath, "secring-bak");          rc = backup_one_file (srcpath, "secring", dstpath, "secring-bak");
1135      free_if_alloc (name);      free_if_alloc (name);
1136      free_if_alloc (srcpath);      free_if_alloc (srcpath);
1137      free_if_alloc (dstpath);      free_if_alloc (dstpath);
 } /* gnupg_backup_keyrings */  
   
   
 /* Display GPG error from file if possible. */  
 void  
 gnupg_display_error (void)  
 {        
     char tmpath[512], * errstr;  
     size_t size = 0;  
     FILE * fp;  
   
     GetTempPath (sizeof tmpath - 32, (tmpath));  
     strcat (tmpath, "gpg_stderr");  
     size = get_file_size (tmpath);  
     if (file_exist_check (tmpath) || size <= 0)  
         return;  
     fp = fopen( tmpath, "rb" );  
     if (!fp) {  
         msg_box( NULL, _("No GPG error description available."), _("GPG Error"), MB_INFO );  
         return;  
     }  
     errstr = new char[size+1];  
     if (!errstr)  
         BUG (0);  
     fread (errstr, 1, size, fp);  
     errstr[size] = '\0';  
     fclose (fp);  
     msg_box (NULL, errstr, _("GPG Error"), MB_INFO);  
     free_if_alloc (errstr);  
1138  }  }
1139    
1140    
   
1141  /* check that the requested GPG keyring exist and.  /* check that the requested GPG keyring exist and.
1142     Return value: 0 for success. */     Return value: 0 for success. */
1143  int  int
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