/[winpt]/trunk/Src/wptGPG.cpp
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revision 41 by twoaday, Fri Oct 28 07:15:26 2005 UTC revision 271 by twoaday, Sun Nov 5 08:57:45 2006 UTC
# Line 1  Line 1 
1  /* wptGPG.cpp - GnuPG configuration  /* wptGPG.cpp - GnuPG configuration
2   *      Copyright (C) 2001-2005 Timo Schulz   *      Copyright (C) 2001-2006 Timo Schulz
3   *   *
4   * This file is part of WinPT.   * This file is part of WinPT.
5   *   *
# Line 17  Line 17 
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    #ifdef HAVE_CONFIG_H
21    #include <config.h>
22    #endif
23    
24  #include <windows.h>  #include <windows.h>
25  #include <string.h>  #include <string.h>
26  #include <stdio.h>  #include <stdio.h>
# Line 26  Line 30 
30  #include <time.h>  #include <time.h>
31    
32  #include "wptGPG.h"  #include "wptGPG.h"
33  #include "wptGPGCmds.h"  #include "wptGpgCmds.h"
34  #include "wptGPGOptSkel.h"  #include "wptGPGOptSkel.h"
35  #include "wptTypes.h"  #include "wptTypes.h"
36  #include "wptNLS.h"  #include "wptNLS.h"
# Line 35  Line 39 
39  #include "wptW32API.h"  #include "wptW32API.h"
40  #include "wptCrypto.h"  #include "wptCrypto.h"
41    
42  #define GPG_CONF "gpg.conf"  #define GPG_CONF        "gpg.conf"
43    #define GPG_REG_EXE     "gpgProgram"    /* registry name for the binary. */
44  struct gpg_watcher_s {  #define GPG_REG_HOME    "HomeDir"       /* registry name of the home dir. */
45      FILETIME    last_access;  
46    /* Context to monitor GPG file changes. */
47    struct gpg_monitor_s {
48        FILETIME    last_access;    /* last write access. */
49      FILETIME    access;      FILETIME    access;
50      char        *object;      char        *object;        /* name of the object. */
51      int         modified;      char        *fpath_object;  /* full path to the object. */
52        int         modified;       /* 1 = modified. */
53  };  };
54    typedef struct gpg_monitor_s *gpg_monitor_t;
55    
56    static const char *gpg_objs[] = {"pubring.gpg", "secring.gpg", "trustdb.gpg"};
57  /* 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];  
58  static int gpg_table_count = DIM (gpg_table);  static int gpg_table_count = DIM (gpg_table);
59    
60  int idea_available = 0;  int idea_available = 0; /* if the IDEA extension is available. */
61    
62    
63  static int check_keyring (char ** r_path);  static int check_keyring (char ** r_path);
64    
65    
66  /* Return the application data folder of the current user. */  /* Return the application data folder of the current user. */
67  static char*  char*
68  multi_gnupg_path (void)  multi_gnupg_path (int strict)
69  {  {
70      static char buf[256+64];      static char buf[MAX_PATH+64];
71      BOOL ec;      BOOL ec;
72    
73      /* MSDN: buf must be at least MAX_PATH=256 bytes */      /* MSDN: buf must be at least MAX_PATH=256 bytes */
74      memset (buf, 0, sizeof (buf));      memset (buf, 0, sizeof (buf));
75      /* XXX: ec should be NOERROR (MSDN) but NOERROR is defined as '0' !? */      /* XXX: ec should be NOERROR (MSDN) but NOERROR is defined as '0' !? */
76      ec = SHGetSpecialFolderPath (HWND_DESKTOP, buf, CSIDL_APPDATA, TRUE);      ec = SHGetSpecialFolderPath (HWND_DESKTOP, buf, CSIDL_APPDATA, TRUE);
77      if (ec != 1)      if (ec != 1) {
78            log_debug ("multi_gnupg_path: SHGetSpecialFolderPath() failed\r\n",
79                       (int)GetLastError ());
80          return NULL;          return NULL;
81        }
82      strcat (buf, "\\gnupg");      strcat (buf, "\\gnupg");
83      if (access (buf, 00))      if (strict && access (buf, 00))
84          return NULL;          return NULL;
85      return m_strdup (buf);      return m_strdup (buf);
86  }  }
87    
88    
89  /* 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
90     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. */
 */  
91  char*  char*
92  get_gnupg_path (void)  get_gnupg_path (void)
93  {  {
94      char *p = NULL, *path = NULL;      char *path;
95        
96      p = get_reg_entry_gpg ("HomeDir");      path = get_reg_entry_gpg (GPG_REG_HOME);
97      if (p) {      if (path && dir_exist_check (path) == 0)
         path = m_strdup (p);  
         free_if_alloc (p);  
98          return path;          return path;
99      }      free_if_alloc (path);
100      else      return multi_gnupg_path (1);
         return multi_gnupg_path ();  
     return m_strdup ("c:\\gnupg");  
101  }  }
102    
103    
# Line 99  get_gnupg_path (void) Line 105  get_gnupg_path (void)
105     A value of NULL indicates an error. */     A value of NULL indicates an error. */
106  char*  char*
107  get_gnupg_cfgfile (void)  get_gnupg_cfgfile (void)
108  {      {
109      char *p = NULL, *optfile = NULL, *path = NULL;      char *optfile;
110      size_t nlen = 0;      char *path;
111    
112      path = get_gnupg_path ();      path = get_gnupg_path ();
113      if (!path)      if (!path)
114          return NULL;          return NULL;
115      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);  
     }  
116      free_if_alloc (path);      free_if_alloc (path);
117      free_if_alloc (p);  
118      return optfile;      return optfile;
119  }  }
120    
121    
122    static char*
123    get_keyring_from_conf (const char *fname, int pub)
124    {
125        config_file_t opt;
126        conf_option_t e;
127        char *kring = NULL;
128        int rc;
129    
130        rc = parse_config (fname, &opt);
131        if (rc)
132            return NULL;
133        if (pub)
134            e = conf_find_option (opt, "keyring");
135        else
136            e = conf_find_option (opt, "secret-keyring");
137        if (e != NULL)
138            kring = m_strdup (e->val);
139        release_config (opt);
140    
141        return kring;
142    }
143    
144    
145  /* 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
146     keyring is return, otherwise the secret keyring. */     keyring is return, otherwise the secret keyring. */
147  char*  char*
148  get_gnupg_keyring (int pub, int strict)  get_gnupg_keyring (int pub, int strict)
149  {      {    
150      char *optfile = NULL;      char *optfile;
151      char *path = NULL;      char *path;
152      char *keyring = NULL;      char *keyring;
153    
154      path = get_gnupg_path ();      path = get_gnupg_path ();
155      if (!path)      if (!path)
156          return NULL;          return NULL;
157      keyring = make_filename (path, pub? "pubring" : "secring", "gpg");      keyring = make_filename (path, pub? "pubring" : "secring", "gpg");
158      if (!strict && !file_exist_check (keyring)) {      if (strict && !file_exist_check (keyring)) {
159            free_if_alloc (path);
160            return keyring;
161        }
162        else if (!strict) {
163          free_if_alloc (path);          free_if_alloc (path);
164          return keyring;          return keyring;
165      }      }
166      if (file_exist_check (keyring) || get_file_size (keyring) == 0) {      if (file_exist_check (keyring) ||
167            pub && get_file_size (keyring) == 0) {
168          free_if_alloc (keyring);          free_if_alloc (keyring);
169          optfile = make_filename (path, GPG_CONF, NULL);          optfile = make_filename (path, GPG_CONF, NULL);
170          keyring = get_gnupg_keyring_from_options (optfile, pub);          keyring = get_keyring_from_conf (optfile, pub);
171            free_if_alloc (optfile);
172      }      }
173      free_if_alloc (path);      free_if_alloc (path);
174      free_if_alloc (optfile);      
175      return keyring;      return keyring;
176  }  }
177    
# Line 168  get_gnupg_keyring (int pub, int strict) Line 182  get_gnupg_keyring (int pub, int strict)
182  char*  char*
183  get_gnupg_prog (void)  get_gnupg_prog (void)
184  {      {    
185      char *p;      char *path;
186      char *pgm = NULL;      char *pgm;
     size_t nlen = 0;  
187    
188      p = get_reg_entry_gpg ("gpgProgram");      pgm = get_reg_entry_gpg (GPG_REG_EXE);
189      if (!p) {      if (pgm)
190          char *path = get_gnupg_path ();          return pgm;
191          if (!path)      path = get_gnupg_path ();
192              return NULL;      if (!path)
193          pgm = make_filename (path, "gpg", "exe");          return NULL;    
194          free_if_alloc (path);      pgm = make_filename (path, "gpg", "exe");
195      }      free_if_alloc (path);
     else {  
         pgm = m_strdup (p);  
         free_if_alloc (p);  
     }  
196      return pgm;      return pgm;
197  }  }
198    
# Line 191  get_gnupg_prog (void) Line 200  get_gnupg_prog (void)
200  /* Retrieve the first usable secret key from cache.  /* Retrieve the first usable secret key from cache.
201     If no usable was found, @ret_no_useable is 1.     If no usable was found, @ret_no_useable is 1.
202     Return value: the keyid of the secret key. */     Return value: the keyid of the secret key. */
203  static char *  static char*
204  default_key_from_cache (int *ret_no_useable)  default_key_from_cache (int *ret_no_useable)
205  {  {    
206      const char * s;      gpgme_key_t key, pk;
207      char * keyid = NULL;      gpg_keycache_t sec, pub;
208      gpgme_key_t key;      const char *s;
209      gpg_keycache_t sec = keycache_get_ctx (0);      char *keyid = NULL;
210    
211      if (!sec)      sec = keycache_get_ctx (0);
212          BUG (0);      pub = keycache_get_ctx (1);
213      gpg_keycache_rewind (sec);      gpg_keycache_rewind (sec);
214      while (!gpg_keycache_next_key (sec, 1, &key)) {      while (!gpg_keycache_next_key (sec, 1, &key)) {
215          if (key_is_useable (key)) {          if (key_is_useable (key) && !get_pubkey (key->subkeys->keyid, &pk)) {
216              s = key->subkeys->keyid;              s = key->subkeys->keyid;
217              if (s)                  if (s)
218                  keyid = m_strdup (s+8);                  keyid = m_strdup (s+8);
219              break;              break;
220          }          }
221      }      }
222      if (!keyid) {      if (!keyid)
223          *ret_no_useable = 1;          *ret_no_useable = 1;
         msg_box (NULL, _("No useable secret key found."), _("GPG Error"), MB_ERR);  
     }  
224      return keyid;      return keyid;
225  }  }
226    
# Line 223  default_key_from_cache (int *ret_no_usea Line 230  default_key_from_cache (int *ret_no_usea
230     Return value: 0 on success. */     Return value: 0 on success. */
231  int  int
232  gnupg_load_config (void)  gnupg_load_config (void)
233  {  {    
234      int rc;      config_file_t opt;
235      gpg_optfile_t opt;      char *conf;
236      gpg_option_t o;      
237      char *conf = get_gnupg_cfgfile ();      conf = get_gnupg_cfgfile ();
238      if (!conf)      if (!conf)
239          return -1;          return -1;
240      rc = parse_gpg_options (conf, &opt);      if (parse_config (conf, &opt)) {
     if (rc) {  
241          free_if_alloc (conf);          free_if_alloc (conf);
242          return -1;          return -1;
243      }      }
244      o = find_option (opt, "ask-cert-level");      if (conf_find_option (opt, "ask-cert-level"))
     if (o)  
245          reg_prefs.gpg.ask_cert_level = 1;          reg_prefs.gpg.ask_cert_level = 1;
246      release_gpg_options (opt);      if (conf_find_option (opt, "ask-cert-expire"))
247            reg_prefs.gpg.ask_cert_expire = 1;
248        release_config (opt);
249      free_if_alloc (conf);      free_if_alloc (conf);
250      return 0;      return 0;
251  }  }
252    
253    
254    /* handle the case the user added a '!' to force a subkey. */
255    static char*
256    extract_keyid (const char *val)
257    {    
258        size_t len = strlen (val);
259    
260        if (len > 1 && val[len-1] == '!')
261            return substr (val, 0, len-1);
262        return m_strdup (val);
263    }
264    
265    
266    /* Return the default key.
267       This can be either a substring or a key ID. */
268  char*  char*
269  get_gnupg_default_key (void)  get_gnupg_default_key (void)
270  {      {    
271      gpg_optfile_t opt = NULL;      config_file_t opt = NULL;
272      gpg_option_t e;      conf_option_t e;
273      char * keyid = NULL, * optfile = NULL;      char *keyid = NULL, *optfile = NULL;
274      int no_usable=0, rc = 0;      int no_usable=0;
275    
276      optfile = get_gnupg_cfgfile ();      optfile = get_gnupg_cfgfile ();
277      if (!optfile)      if (!optfile)
278          return default_key_from_cache (&no_usable);          return default_key_from_cache (&no_usable);
279      rc = parse_gpg_options (optfile, &opt);      if (parse_config (optfile, &opt)) {
280      if (rc) {          free_if_alloc (optfile);
281          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 );  
282      }      }
283        /* First we search for config entries which specify a default key. */
284        e = conf_find_option (opt, "default-key");
285        if (!e)
286            e = conf_find_option (opt, "local-user");
287        if (e)
288            keyid = extract_keyid (e->val);
289    
290      free_if_alloc (optfile);      free_if_alloc (optfile);
291      release_gpg_options (opt);      release_config (opt);
292    
293        /* If no entry in the config has been found, we get a key
294           from the key cache. */
295      if (!keyid)      if (!keyid)
296          keyid = default_key_from_cache (&no_usable);          keyid = default_key_from_cache (&no_usable);
297      return keyid;      return keyid;
298  } /* get_gnupg_default_key */  }
299    
300    
301    /* Check if GPG4WIN is available and if so, use the
302       install path to figure out where the gpg.exe is. */
303    char*
304    check_for_gpg4win (void)
305    {
306        return get_reg_entry_gpg4win ("gpg.exe");
307    }
308    
309    
310  /* Check if the gpg application (exe file) is available. */  /* Check if the gpg application (exe file) is available. */
311  int  int
312  check_gnupg_prog (void)  check_gnupg_prog (void)
313  {  {
314      char *pgm = NULL;      char *gpgexe = NULL;
315      int rc = 0;      int rc = 0;
316    
317      pgm = get_gnupg_prog ();      gpgexe = get_gnupg_prog ();
318      if (!pgm)      if (!gpgexe || file_exist_check (gpgexe)) {
319          rc = WPTERR_GPG_EXEFILE;          free_if_alloc (gpgexe);
320      if (file_exist_check (pgm))          gpgexe = check_for_gpg4win ();
321          rc = WPTERR_GPG_EXEFILE;          if (!gpgexe || file_exist_check (gpgexe))
322      free_if_alloc (pgm);              rc = WPTERR_GPG_EXEFILE;
323            else
324                set_reg_entry_gpg (GPG_REG_EXE, gpgexe);
325        }
326        free_if_alloc (gpgexe);
327      return rc;      return rc;
328  }  }
329    
330    
331  static int  static int
332  parse_version_nr (const char * buf, int *major, int *minor, int *patch)  parse_version_nr (const char *buf, int *major, int *minor, int *patch)
333  {  {
334      char tmp[8];      char tmp[8];
335      int i;      int i;
# Line 309  parse_version_nr (const char * buf, int Line 338  parse_version_nr (const char * buf, int
338      while (buf && *buf != '.' && i < 8)      while (buf && *buf != '.' && i < 8)
339          tmp[i++] = *buf++;          tmp[i++] = *buf++;
340      tmp[i] = 0; buf++;      tmp[i] = 0; buf++;
341      *major = atol( tmp );      *major = atoi (tmp);
342      i=0;      i=0;
343      while (buf && *buf != '.' && i < 8)      while (buf && *buf != '.' && i < 8)
344          tmp[i++] = *buf++;          tmp[i++] = *buf++;
345      tmp[i] = 0; buf++;      tmp[i] = 0; buf++;
346      *minor = atol (tmp);      *minor = atoi (tmp);
347      i=0;      i=0;
348      while (buf && isdigit( *buf ) && i < 8)      while (buf && isdigit (*buf) && i < 8)
349          tmp[i++] = *buf++;          tmp[i++] = *buf++;
350      tmp[i] = 0;      tmp[i] = 0;
351      *patch = atol (tmp);      *patch = atoi (tmp);
352      return 0;      return 0;
353  }  }
354    
# Line 328  parse_version_nr (const char * buf, int Line 357  parse_version_nr (const char * buf, int
357     version given in @r_major.@r_minor.@r_patch. On success these     version given in @r_major.@r_minor.@r_patch. On success these
358     variables contain the GPG version which is installed. */     variables contain the GPG version which is installed. */
359  int  int
360  check_gnupg_engine (int *r_major, int *r_minor, int *r_patch)  check_gnupg_engine (const char *need_gpg_ver,
361                        int *r_major, int *r_minor, int *r_patch)
362  {  {
363      gpgme_ctx_t ctx;      gpgme_ctx_t ctx;
364      gpgme_engine_info_t inf;      gpgme_engine_info_t inf;
365      char * eng = NULL;      char *eng = NULL;
366      int major=0, minor=0, patch=0;      int major=0, minor=0, patch=0;
367      int rc;      int need_major = 0, need_minor = 0, need_patch = 0;
368                int rc = 1;
369    
370        /* Convert the needed GPG version to the integer format. */
371        if (parse_version_nr (need_gpg_ver,
372                              &need_major, &need_minor, &need_patch))
373            return 1;
374        
375      gpgme_new (&ctx);      gpgme_new (&ctx);
376      inf = gpgme_ctx_get_engine_info (ctx);      inf = gpgme_ctx_get_engine_info (ctx);
377      if (!inf) {      if (!inf) {
378          gpgme_release (ctx);          gpgme_release (ctx);
379          return -1;          return -1;
380      }      }
381    
382      /* 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. */
383      if (gpg_get_version (&eng))      if (gpg_get_version (&eng)) {
384            gpgme_release (ctx);
385          return -1;          return -1;
386        }
387      if (strstr (eng, "IDEA"))      if (strstr (eng, "IDEA"))
388          idea_available = 1;          idea_available = 1;
389      free (eng);      safe_free (eng);
390      rc = parse_version_nr( inf->version, &major, &minor, &patch );      if (parse_version_nr (inf->version, &major, &minor, &patch)) {
     if( rc ) {  
391          gpgme_release (ctx);          gpgme_release (ctx);
392          return rc;          return 1;
393      }      }
394      if (major < *r_major || minor < *r_minor)      gpgme_release (ctx);
395          rc = 1;  
396      else {      if (major > need_major)
         if (patch < *r_patch)  
             rc = 1;  
397          rc = 0;          rc = 0;
398      }      else if (major == need_major && minor > need_minor)      
399            rc = 0;
400        else if (major == need_major && minor == need_minor &&
401                 patch >= need_patch)
402            rc = 0;
403    
404        /* Return the current GPG version. */
405      *r_major = major;      *r_major = major;
406      *r_minor = minor;      *r_minor = minor;
407      *r_patch = patch;      *r_patch = patch;
# Line 367  check_gnupg_engine (int *r_major, int *r Line 409  check_gnupg_engine (int *r_major, int *r
409  }  }
410    
411    
412  int  /* Count the keyring entries in the gpg.conf file.
413  check_gnupg_cfgfile (const char *fname, int *r_secrings, int *r_pubrings)     Return value: 0 on success. */
414    static int
415    cfgfile_count_keyrings (const char *fname, int *r_secrings, int *r_pubrings)
416  {  {
417      gpg_optfile_t opt;          config_file_t opt;    
418      gpg_option_t e;      conf_option_t e;
     int rc = 0;  
419    
420      *r_secrings = 0;      *r_secrings = 0;
421      *r_pubrings = 0;      *r_pubrings = 0;
     rc = parse_gpg_options( fname, &opt );  
     if( rc )  
         return WPTERR_FILE_OPEN;  
422    
423      for( e = opt->list; e; e = e->next ) {      if (parse_config (fname, &opt))
424          if( !strcmp( e->name, "secret-keyring" ) ) {          return WPTERR_FILE_OPEN;
425              if( !file_exist_check( e->val ) )      for (e = opt->list; e; e = e->next) {
426            if (!strcmp (e->name, "secret-keyring")) {
427                if (!file_exist_check (e->val))
428                  r_secrings[0]++;                  r_secrings[0]++;
429          }          }
430          else if( !strcmp( e->name, "keyring" ) ) {          else if (!strcmp (e->name, "keyring")) {
431              if( !file_exist_check( e->val ) )              if (!file_exist_check (e->val))
432                  r_pubrings[0]++;                  r_pubrings[0]++;
433          }          }
434      }      }
435      release_gpg_options( opt );      release_config (opt);
436      return 0;      return 0;
437  } /* check_gnupg_cfgfile */  }
438    
439    
440  /*  /* Usually GPG creates the pubring.gpg, secring.gpg on
441   * Check if both keyrings are located in the gnupg home directory.     the first start, but to make sure they always exist
442   */     create them empty if needed. */
443    static void
444    create_empty_keyring (int _pub)
445    {
446        char *name;
447        FILE *fp;
448    
449        name = get_gnupg_keyring (_pub, 0);
450        if (name && file_exist_check (name) != 0) {
451            fp = fopen (name, "ab");
452            if (fp != NULL)
453                fclose (fp);
454        }
455        free_if_alloc (name);
456    }
457    
458    
459    /* Check if both keyrings are located in the gnupg home directory. */
460  int  int
461  gnupg_access_files (void)  gnupg_access_files (void)
462  {  {
# Line 406  gnupg_access_files (void) Line 465  gnupg_access_files (void)
465      int secrings = 0, pubrings = 0;      int secrings = 0, pubrings = 0;
466      char *optfile;      char *optfile;
467    
468        create_empty_keyring (1);
469      if (gnupg_access_keyring (1))      if (gnupg_access_keyring (1))
470          rc = WPTERR_GPG_KEYRINGS;          rc = WPTERR_GPG_KEYRINGS;
471      else      else
472          pubring_ok = 1;          pubring_ok = 1;
473    
474        create_empty_keyring (0);
475      if (gnupg_access_keyring (0))      if (gnupg_access_keyring (0))
476          rc = WPTERR_GPG_KEYRINGS;          rc = WPTERR_GPG_KEYRINGS;
477      else      else
478          secring_ok = 1;          secring_ok = 1;
479    
480      if (!pubring_ok || !secring_ok) {      if (!pubring_ok || !secring_ok) {
481          optfile = get_gnupg_cfgfile ();          optfile = get_gnupg_cfgfile ();
482          if (!optfile)          if (!optfile)
483              return WPTERR_GPG_KEYRINGS;              return WPTERR_GPG_KEYRINGS;
484          rc = file_exist_check (optfile);          rc = file_exist_check (optfile);
485          if (!rc && get_file_size(optfile) > 0) {          if (!rc && get_file_size (optfile) > 0) {
486              rc = check_gnupg_cfgfile (optfile, &secrings, &pubrings);              rc = cfgfile_count_keyrings (optfile, &secrings, &pubrings);
487              if (!rc && secrings && pubrings) {              if (!rc && secrings > 0 && pubrings > 0) {
488                  free_if_alloc (optfile);                  free_if_alloc (optfile);
489                  return 0; /* found two keyrings in the option file */                  return 0; /* found two keyrings in the option file */
490              }              }
# Line 438  gnupg_access_files (void) Line 500  gnupg_access_files (void)
500          rc = WPTERR_GPG_KEYRINGS;          rc = WPTERR_GPG_KEYRINGS;
501      }      }
502      return rc;      return rc;
503  } /* gnupg_access_files */  }
504    
505    
506  static int  static int
507  create_gpg_options (void)  create_gpg_conf (void)
508  {  {
509      FILE *fp;      FILE *fp;
510      char *s, *optfile;      char *s, *optfile;
511    
512      s = get_gnupg_path( );      s = get_gnupg_path ();
513      if( s == NULL )      if (!s)
514          return WPTERR_FILE_CREAT;          return WPTERR_FILE_CREAT;
515      optfile = make_filename( s, GPG_CONF, NULL );      optfile = make_filename (s, GPG_CONF, NULL);
516      fp = fopen( optfile, "wb" );      fp = fopen (optfile, "wb");
517      if( fp == NULL ) {        if (!fp) {
518          return WPTERR_FILE_CREAT;          return WPTERR_FILE_CREAT;
519          goto fail;          goto fail;
520      }      }
521      fwrite( options_skel, 1, strlen( options_skel ), fp );      fwrite (options_skel, 1, strlen (options_skel), fp);
522      fclose( fp );      fclose (fp);
523    
524  fail:  fail:
525      free_if_alloc( s );      free_if_alloc (s);
526      free_if_alloc( optfile );      free_if_alloc (optfile);
527      return 0;      return 0;
528  } /* create_gpg_options */  }
529    
530    
531  /*  /* Return the contents of the options file as a char buf. */
532   * Return the contents of the options file as a char buf.  char*
  */  
 char *  
533  get_gnupg_config (void)  get_gnupg_config (void)
534  {  {
535      FILE * fp;      FILE *fp;
536      char * p = NULL, * optfile = NULL;      char *p = NULL, *optfile = NULL;
537      int fsize, rc = 0;      int fsize;
538                    
539      optfile = get_gnupg_cfgfile ();      optfile = get_gnupg_cfgfile ();
540      if( optfile == NULL )      if (!optfile)
541          return NULL;          return NULL;
542      fsize = get_file_size( optfile );      fsize = get_file_size (optfile);
543      if( !fsize ) {      if (!fsize) {
544          rc = create_gpg_options( );          if (create_gpg_conf ())
         if ( rc )  
545              return NULL;              return NULL;
546          fsize = get_file_size( optfile );          fsize = get_file_size (optfile);
547      }      }
548      if( fsize > 100000 )      if (fsize > 100000)
549          goto leave; /* too large */          goto leave; /* too large */
550      p = new char[fsize+1];      p = new char[fsize+1];
551      if( p == NULL )      if (!p)
552          BUG( NULL );          BUG (NULL);
553      fp = fopen( optfile, "rb" );      fp = fopen( optfile, "rb" );
554      if( fp == NULL ) {      if (!fp) {
555          free_if_alloc( p );          free_if_alloc (p);
556          return NULL;          return NULL;
557      }      }
558      fread( p, 1, fsize, fp );      fread (p, 1, fsize, fp);
559      fclose( fp );      fclose (fp);
560      p[fsize] = '\0';      p[fsize] = '\0';
561      free_if_alloc( optfile );      free_if_alloc (optfile);
562    
563  leave:  leave:
564      return p;      return p;
565  } /* get_gnupg_config */  }
566    
567    
568    /* Set the default key in the gpg.conf.
569       If @key is NULL, the entry will be deleted. */
570  int  int
571  set_gnupg_default_key (const char * key)  set_gnupg_default_key (const char *key)
572  {  {
573      gpg_optfile_t opt;      config_file_t opt;
574      gpg_option_t e;      conf_option_t e;
575      char *optfile = NULL;      char *optfile = NULL;
576      int rc = 0;      int rc = 0;
577    
578      optfile = get_gnupg_cfgfile ();      optfile = get_gnupg_cfgfile ();
579      if (!optfile)      if (!optfile)
580          return -1;          return WPTERR_FILE_OPEN;
581      rc = parse_gpg_options (optfile, &opt);      rc = parse_config (optfile, &opt);
582      if( rc ) {      if (rc) {
583          free_if_alloc (optfile);          free_if_alloc (optfile);
584          return -1;          return WPTERR_GENERAL;
585      }      }
586      e = find_option (opt, "default-key");      e = conf_find_option (opt, "default-key");
587      if (e) {      if (e && !key)
588            e->used = 0;
589        else if (e) {
590          free_if_alloc (e->val);          free_if_alloc (e->val);
591          e->val = m_strdup (key);          e->val = m_strdup (key);
592          e->used = 1;          e->used = 1;
593      }      }
594      else      else if (key)
595          add_entry (opt, ENTRY_MULTI, "default-key", key);          conf_add_entry (opt, ENTRY_MULTI, "default-key", key);
596      rc = commit_gpg_options (optfile, opt);      rc = commit_config (optfile, opt);
597    
598      free_if_alloc (optfile);      free_if_alloc (optfile);
599      release_gpg_options (opt);      release_config (opt);
   
600      return rc;      return rc;
601  } /* set_gnupg_default_key */  }
602    
603    
604  /*  /* Set the contents of the options file. */
  * Set the contents of the options file.  
  */  
605  int  int
606  set_gnupg_options( const char *buf, size_t buflen )  set_gnupg_options (const char *buf, size_t buflen)
607  {  {
608      FILE *fp;        FILE *fp;  
609      char *optfile = NULL;      char *optfile;
610    
611      optfile = get_gnupg_cfgfile( );      optfile = get_gnupg_cfgfile ();
612      if( optfile == NULL )      if (!optfile)
613          return WPTERR_FILE_CREAT;          return WPTERR_FILE_CREAT;
614    
615      fp = fopen( optfile, "wb" );      fp = fopen (optfile, "wb");
616      if( fp == NULL ) {      if (!fp) {
617          free_if_alloc( optfile );          free_if_alloc (optfile);
618          return WPTERR_FILE_CREAT;          return WPTERR_FILE_CREAT;
619      }      }
620      fwrite( buf, 1, buflen, fp );      fwrite (buf, 1, buflen, fp);
621      fclose( fp );      fclose (fp);
622      free_if_alloc( optfile );      free_if_alloc (optfile);
623      return 0;      return 0;
624  } /* set_gnupg_options */  }
625    
626  /*  
627   * Check if the line contains a valid GPG argument.  /* Check if the parameter for the option @buf is an existing file name.
628   */     Return value: 0 on success. */
629  static int  static int
630  check_line( const char *buf )  check_arg_file_exist (const char *buf)
631    {
632        const char *s = "load-extension ";
633    
634        /* XXX: this is a bit of a kludge because we just
635                detect errors for 'load-extension'. */
636        if (!strncmp (buf, s, strlen (s)))
637            buf += strlen (s);
638        else
639            return 0;
640        return file_exist_check (buf);
641    }
642    
643    
644    /* Check if the line contains a valid GPG argument. */
645    static int
646    check_line (const char *buf)
647  {  {
648      int j, len;      int j, len;
649      int rc = 0;      int rc = 0;
650    
651      if( *buf == '#' || *buf == '\r' || *buf == '\n' )      if (*buf == '#' || *buf == '\r' || *buf == '\n')
652          return 1;          return 1;
653      rc = 0;      for (j = 0; valid_gpg_args[j]; j++) {
654      for ( j = 0; valid_gpg_args[j]; j++ ) {          len = strlen (valid_gpg_args[j]);
655          len = strlen( valid_gpg_args[j] );          if (!strncmp (valid_gpg_args[j], buf, len))
656          if( !strncmp( valid_gpg_args[j], buf, len ) )              rc = 1;
             rc = 1;      
657      }      }
   
658      return rc;      return rc;
659  } /* check_line */  }
660    
661    
662  int  int
663  check_gnupg_options( const char *buf )  check_gnupg_options (const char *buf, int showerr)
664  {  {
665      char line[1024];      char line[1024];
666      int nbytes = 0;      int nbytes = 0, lineno=0;
667      unsigned j;      unsigned j;
668                    
669      for ( j = 0; j<strlen( buf ) && j < sizeof(line); j++ ) {      for  (j = 0; j < strlen (buf) && j < sizeof (line); j++) {
670          line[nbytes++] = buf[j];          line[nbytes++] = buf[j];
671          if ( buf[j] == '\n' || j == ( strlen( buf ) - 1 ) ) {          if (buf[j] == '\n' || j == (strlen (buf) - 1)) {
672              line[nbytes] = '\0';              line[nbytes] = '\0';
673              if( !check_line( line ) ) {              lineno++;
674                  msg_box( NULL, line, "options", MB_OK );              if (!check_line (line)) {
675                    if (showerr)
676                        log_box ("GPG Config File", MB_ERR,
677                                 "gpg.conf:%d: invalid keyword '%s'",
678                                 lineno, line);
679                  return 1;                        return 1;      
680              }              }
681                if (check_arg_file_exist (line))
682                    return WPTERR_FILE_EXIST;
683              nbytes = 0;              nbytes = 0;
684          }                }
685      }      }
   
686      return 0;      return 0;
687  } /* check_gnupg_options */  }
688    
689    
690  /* Store the last access of the file inside the watcher @ctx. */  /* Store the last access of the file inside the watcher @ctx. */
691  static int  static int
692  get_last_gnupg_access (gpg_watcher_s *ctx)  get_last_gnupg_access (gpg_monitor_t ctx)
693  {  {
694      HANDLE fd;      HANDLE fd;
     char *path;  
     char *file;  
695    
696      path = get_gnupg_path ();      fd = CreateFile (ctx->fpath_object, GENERIC_READ, FILE_SHARE_READ,
697      file =  make_filename (path, ctx->object, NULL);                       NULL, OPEN_EXISTING, 0, NULL);
698      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);  
699          return WPTERR_FILE_OPEN;          return WPTERR_FILE_OPEN;
     }  
700      GetFileTime (fd, NULL, NULL, &ctx->access);      GetFileTime (fd, NULL, NULL, &ctx->access);
701      CloseHandle (fd);      CloseHandle (fd);
     free_if_alloc (path);  
     free_if_alloc (file);  
702      return 0;      return 0;
703  }  }
704    
705    
706  /* Check if the file inside watcher @ctx was modified. */  /* Check if the file inside watcher @ctx was modified. */
707  static void  static void
708  check_last_gnupg_access (gpg_watcher_s *ctx)  check_last_gnupg_access (gpg_monitor_t ctx)
709  {                {              
710      ctx->modified = 0;      ctx->modified = 0;
711    
# Line 642  check_last_gnupg_access (gpg_watcher_s * Line 713  check_last_gnupg_access (gpg_watcher_s *
713          ctx->last_access.dwLowDateTime != ctx->access.dwLowDateTime)          ctx->last_access.dwLowDateTime != ctx->access.dwLowDateTime)
714          ctx->modified = 1;          ctx->modified = 1;
715    
716        if (ctx->last_access.dwLowDateTime == 0)
717            ctx->modified = 0;
718    
719      ctx->last_access.dwLowDateTime = ctx->access.dwLowDateTime;      ctx->last_access.dwLowDateTime = ctx->access.dwLowDateTime;
720      ctx->last_access.dwHighDateTime = ctx->access.dwHighDateTime;      ctx->last_access.dwHighDateTime = ctx->access.dwHighDateTime;
721  }  }
722    
723    
724  /* Init GPG watcher table for all monitored files. */  /* Init GPG monitor table for all monitored files. */
725  void  void
726  init_gnupg_table (void)  init_gnupg_table (void)
727  {        {      
728      char *p;      char *path;
729      int j;      int j;
730    
731        path = get_gnupg_path ();
732      for (j = 0; j < gpg_table_count; j++) {      for (j = 0; j < gpg_table_count; j++) {
733          p = gpg_table[j].object = m_strdup (gpg_objs[j]);          gpg_table[j].object = m_strdup (gpg_objs[j]);
734          if (!p)          gpg_table[j].fpath_object = make_filename (path, gpg_objs[j], NULL);
             BUG (NULL);  
735          memset (&gpg_table[j].access, 0, sizeof (FILETIME));          memset (&gpg_table[j].access, 0, sizeof (FILETIME));
736          memset (&gpg_table[j].last_access, 0, sizeof (FILETIME));          memset (&gpg_table[j].last_access, 0, sizeof (FILETIME));
737          gpg_table[j].modified = 0;          gpg_table[j].modified = 0;
738      }      }
739        free_if_alloc (path);
740  }  }
741    
742    
743    /* Release the GPG monitor table. */
744  void  void
745  free_gnupg_table (void)  free_gnupg_table (void)
746  {  {
747      int j;      int j;
748    
749      for (j=0; j < gpg_table_count; j++)      for (j=0; j < gpg_table_count; j++) {
750          free_if_alloc (gpg_table[j].object);          free_if_alloc (gpg_table[j].object);
751            free_if_alloc (gpg_table[j].fpath_object);
752        }
753  }  }
754    
755    
756  /* Return the amount of files modified since the last call. */  /* Return the amount of files modified since the last call. */
757  int  int
758  keyring_check_last_access (void)  keyring_check_last_access (void)
759  {        {
760      int rc, j;      int nfiles;
761        int pos;
762    
763      rc = 0;      nfiles = 0;
764      for (j = 0; j < gpg_table_count; j++) {      for (pos = 0; pos < gpg_table_count; pos++) {
765          get_last_gnupg_access (&gpg_table[j]);          get_last_gnupg_access (&gpg_table[pos]);
766          check_last_gnupg_access (&gpg_table[j]);          check_last_gnupg_access (&gpg_table[pos]);
767          if (gpg_table[j].modified)          if (gpg_table[pos].modified)
768              rc++;                    nfiles++;
769      }      }
770    
771      return rc;      return nfiles;
772  }  }
773    
774    
# Line 712  gnupg_check_file_ext (const char *fname, Line 791  gnupg_check_file_ext (const char *fname,
791              *r_type = PGP_SIG;              *r_type = PGP_SIG;
792          return "SIGNED";          return "SIGNED";
793      }      }
794      else if  (!stricmp (file_ext, ".gpg") || !stricmp (file_ext, ".pgp")) {      else if  (!stricmp (file_ext, ".gpg") ||
795                  !stricmp (file_ext, ".pgp")) {
796          if (r_type)          if (r_type)
797              *r_type = PGP_MESSAGE;              *r_type = PGP_MESSAGE;
798          return "ENCRYPTED";          return "ENCRYPTED";
# Line 721  gnupg_check_file_ext (const char *fname, Line 801  gnupg_check_file_ext (const char *fname,
801  }  }
802    
803    
 char*  
 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;  
 }  
   
   
804    
805  /* XXX: does not work with write-protected floppies */  /* Check if the device file @fname is stored on, is write-protected. */
806  static int  static int
807  my_access (const char * fname)  my_access (const char *fname)
808  {  {
809      HANDLE hd;      HANDLE hd;
810    
811      hd = CreateFile (fname, GENERIC_WRITE, FILE_SHARE_WRITE,      hd = CreateFile (fname, GENERIC_WRITE, FILE_SHARE_WRITE,
812                       NULL, OPEN_EXISTING, 0, NULL);                       NULL, OPEN_EXISTING, 0, NULL);
813      if (hd == INVALID_HANDLE_VALUE)      if (hd == INVALID_HANDLE_VALUE)
# Line 759  my_access (const char * fname) Line 817  my_access (const char * fname)
817  }  }
818    
819    
820    /* Check the file permissions of the public keyring.
821       If @showmsg is 1 output a message in case of errors.
822       Return value: 1 if read-only attribute
823                     2 if file is opened by another process exclusively. */
824  int  int
825  gpg_check_permissions (int showmsg)  gpg_check_permissions (int showmsg)
826  {  {
827      char * p, * name = NULL;      char *p = NULL;
828        char *name = NULL;
829      int failed = 0, ans=0, attrs=0;      int failed = 0, ans=0, attrs=0;
830    
831      p = get_gnupg_path ();      p = get_gnupg_path ();
832      check_keyring (&p);      if (p && check_keyring (&p)) {
     if (p) {  
833          name = make_filename (p, "pubring", "gpg");          name = make_filename (p, "pubring", "gpg");
         free_if_alloc (p);  
834          if ((attrs=GetFileAttributes (name)) & FILE_ATTRIBUTE_READONLY) {          if ((attrs=GetFileAttributes (name)) & FILE_ATTRIBUTE_READONLY) {
835              ans = msg_box (NULL,              ans = msg_box (NULL,
836                             _("The selected keyring has the read-only file\n"                             _("The selected keyring has the read-only file\n"
# Line 785  gpg_check_permissions (int showmsg) Line 846  gpg_check_permissions (int showmsg)
846                  }                  }
847              }              }
848              else if (ans == IDNO) {              else if (ans == IDNO) {
849                  /*                  /* 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);  
                 */  
850                  failed = 1;                  failed = 1;
851              }              }
852          }          }
# Line 804  gpg_check_permissions (int showmsg) Line 862  gpg_check_permissions (int showmsg)
862              failed = 2;              failed = 2;
863          }          }
864      }      }
865        free_if_alloc (p);
866      free_if_alloc (name);      free_if_alloc (name);
867      return failed;      return failed;
868  } /* gpg_check_permissions */  }
869    
870    
871  /* Check the GPG home dir. If all methods failed, try to  /* Check the GPG home dir. First try to read the 'HomeDir' registry entry,
872     create the default folder. */     then check for $APPDATA\gnupg. Create the dir if it does not exists. */
873  static int  int
874  check_homedir (void)  gnupg_check_homedir (void)
875  {        {      
876      char *homedir = NULL;      char *homedir;
877      int yes = 0;      int val;
878        int rc = 0;
879    
880      homedir = get_reg_entry_gpg ("HomeDir");  #ifdef WINPT_MOBILE
881      if (!homedir)      return 0;
882          homedir = multi_gnupg_path ();  #endif
883    
884        homedir = get_reg_entry_gpg (GPG_REG_HOME);
885      if (!homedir)      if (!homedir)
886          homedir = m_strdup ("c:\\gnupg");          homedir = multi_gnupg_path (0);
887      if (homedir) {      if (homedir) {
888          if (GetFileAttributes (homedir) == 0xFFFFFFFF) {          if (GetFileAttributes (homedir) == 0xFFFFFFFF) {
889              yes = log_box (_("Preferences"), MB_YESNO,              val = log_box (_("Preferences"), MB_YESNO,
890                             _("%s does not exit.\n"                             _("%s does not exit.\n"
891                               "Do you want to create this directory?"), homedir);                               "Do you want to create this directory?"), homedir);
892              if (yes == IDYES) {              if (val == IDYES) {
893                  BOOL ec = CreateDirectory (homedir, NULL);                  if (!CreateDirectory (homedir, NULL))
894                  free_if_alloc (homedir);                      rc = WPTERR_DIR_CREAT;
                 if (ec == FALSE)  
                     return WPTERR_DIR_CREAT;  
                 return 0;  
895              }              }
896              return WPTERR_DIR_OPEN;              else
897          }                  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;  
898          }          }
899          free_if_alloc (homedir);          free_if_alloc (homedir);
         free_if_alloc (prog);  
         return rc;  
     }  
     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;  
         }  
900      }      }
       
     /* 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);  
901      return rc;      return rc;
902  } /* gnupg_check_homedir */  }
903    
904    
905  int  int
906  gnupg_copy_keyrings (void)  gnupg_copy_keyrings (void)
907  {  {
908      const char * pring, * sring;      const char *pring, *sring;
909      char * file = NULL, * path = NULL;      char *file = NULL, *path = NULL;
910      int id = 0, rc = 0;      int id = 0, rc = 0;
911      HWND hwnd;      HWND hwnd;
912            
# Line 907  gnupg_copy_keyrings (void) Line 915  gnupg_copy_keyrings (void)
915          return WPTERR_GENERAL;          return WPTERR_GENERAL;
916      hwnd = GetDesktopWindow ();      hwnd = GetDesktopWindow ();
917    
918      pring = get_filename_dlg (hwnd, FILE_OPEN, _("Please choose your public keyring"),      pring = get_fileopen_dlg (hwnd, _("Please choose your Public Keyring"),
919                                _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),NULL);                                "GPG Keyrings (*.gpg)\0*.gpg\0\0",NULL);
920      if (!pring) {      if (!pring) {
921          msg_box (hwnd, _("No keyring was chosen. Exit."), _("WinPT Error"), MB_ERR);          msg_box (hwnd, _("No keyring was chosen. Exit."),
922                     _("WinPT Error"), MB_ERR);
923          free_if_alloc (path);          free_if_alloc (path);
924          return WPTERR_GENERAL;          return WPTERR_GENERAL;
925      }      }
926      file = make_filename (path, "pubring", "gpg");      file = make_filename (path, "pubring", "gpg");
927      if (file_exist_check (file) == 0) {      if (file_exist_check (file) == 0) {
928          id = msg_box (hwnd, _("Overwrite old public keyring?"), "WinPT", MB_INFO|MB_YESNO);          id = msg_box (hwnd, _("Overwrite old public keyring?"),
929                          "WinPT", MB_INFO|MB_YESNO);
930          if (id == IDNO)          if (id == IDNO)
931              goto fail;              goto fail;
932      }      }
# Line 927  gnupg_copy_keyrings (void) Line 937  gnupg_copy_keyrings (void)
937      }      }
938      free_if_alloc (file);      free_if_alloc (file);
939    
940      sring = get_filename_dlg (hwnd, FILE_OPEN, _("Please choose your secret keyring"),      sring = get_fileopen_dlg (hwnd, _("Please choose your Secret Keyring"),
941                                _("GPG Keyrings (*.gpg)\0*.gpg\0\0"), NULL);                                "GPG Keyrings (*.gpg)\0*.gpg\0\0", NULL);
942      if (!sring) {      if (!sring) {
943          msg_box( NULL, _("No keyring was chosen. Exit."), _("WinPT Error"), MB_ERR );          msg_box (NULL, _("No keyring was chosen. Exit."),
944                     _("WinPT Error"), MB_ERR);
945          return WPTERR_GENERAL;          return WPTERR_GENERAL;
946      }      }
947      file = make_filename (path, "secring", "gpg");      file = make_filename (path, "secring", "gpg");
948      if (file_exist_check (file) == 0) {      if (file_exist_check (file) == 0) {
949          id = msg_box (hwnd, _("Overwrite old secret keyring?"), "WinPT", MB_INFO|MB_YESNO);          id = msg_box (hwnd, _("Overwrite old secret keyring?"),
950          if( id == IDNO )                        "WinPT", MB_INFO|MB_YESNO);
951            if (id == IDNO)
952              goto fail;              goto fail;
953      }      }
954      if (!CopyFile (sring, file, FALSE)) {      if (!CopyFile (sring, file, FALSE)) {
955          msg_box( NULL, _("Could not copy file."), _("WinPT Error"), MB_ERR);          msg_box (NULL, _("Could not copy file."), _("WinPT Error"), MB_ERR);
956          rc = WPTERR_FILE_READ;          rc = WPTERR_FILE_READ;
957      }      }
958    
# Line 948  fail: Line 960  fail:
960      free_if_alloc (file);      free_if_alloc (file);
961      free_if_alloc (path);      free_if_alloc (path);
962      return rc;      return rc;
963  } /* gnupg_import_keyrings */  }
964    
965    
966    /* Backup the gpg.conf file. */
967  void  void
968  gnupg_backup_options (void)  gnupg_backup_options (void)
969  {  {
970      char *cfgfile = NULL;      char *cfgfile;
971      char bak[512];      char bak[MAX_PATH+32];
972    
973      cfgfile = get_gnupg_cfgfile ();      cfgfile = get_gnupg_cfgfile ();
974      if (cfgfile == NULL)      if (!cfgfile)
975          return;          return;
976      _snprintf (bak, DIM (bak)-1, "%s.bak", cfgfile);      _snprintf (bak, DIM (bak)-1, "%s.bak", cfgfile);
977      CopyFile (cfgfile, bak, FALSE);      CopyFile (cfgfile, bak, FALSE);
978      free_if_alloc (cfgfile);      free_if_alloc (cfgfile);
979  } /* gnupg_backup_options */  }
   
980    
981    
982  static int  static int
983  backup_one_file (const char *srcpath, const char *srcn,  backup_one_file (const char *srcpath, const char *srcn,
984                   const char *dstpath, const char *dstn)                   const char *dstpath, const char *dstn)
985  {  {
986      char * src, * dst;      char *src, *dst;
987      BOOL rc;      BOOL rc;
988    
989      src = make_filename (srcpath, srcn, "gpg");      src = make_filename (srcpath, srcn, "gpg");
     if (!src)  
         BUG (NULL);  
990      dst = make_filename (dstpath, dstn, "gpg");      dst = make_filename (dstpath, dstn, "gpg");
     if (!dst)  
         BUG (NULL);  
991      rc = CopyFile (src, dst, FALSE);      rc = CopyFile (src, dst, FALSE);
992      free_if_alloc (src);      free_if_alloc (src);
993      free_if_alloc (dst);      free_if_alloc (dst);
994      if (!rc)      if (!rc) {
     {  
995          log_box (_("Backup"), MB_ERR, _("Backup keyring \"%s\" failed"), srcn);          log_box (_("Backup"), MB_ERR, _("Backup keyring \"%s\" failed"), srcn);
996          return WPTERR_GENERAL;          return WPTERR_GENERAL;
997      }      }
998      return 0;      return 0;
999  } /* backup_one_file */  }
1000    
1001    
1002    /* Figure out first public keyring which is not empty.
1003       Return value: 1 on success. */
1004  static int  static int
1005  check_keyring (char ** r_path)  check_keyring (char **r_path)
1006  {  {
1007      char * p;      char *p;
1008      char * opt, * name;      char *opt;
1009        char *name;
1010    
1011      if (!*r_path)      if (!*r_path)
1012          return 0;          return 0;
1013      p = make_filename (*r_path, "pubring", "gpg");      p = make_filename (*r_path, "pubring", "gpg");
1014      if (!p || get_file_size (p) > 0)      if (get_file_size (p) <= 0)
1015          return 0;          return 0;
1016    
1017      opt = get_gnupg_cfgfile ();      opt = get_gnupg_cfgfile ();
1018      if (!opt)      if (!opt)
1019          BUG (0);          BUG (0);
1020      name = get_gnupg_keyring_from_options (opt, 1);      name = get_keyring_from_conf (opt, 1);
1021      free_if_alloc (opt);      free_if_alloc (opt);
1022      free_if_alloc (p);      free_if_alloc (p);
1023      if (!name)      if (!name)
1024          return 0;          return 0;
1025      p = strrchr (name, '\\');      p = strrchr (name, '\\');
1026      if (!p)      if (!p) {
     {  
1027          free_if_alloc (name);          free_if_alloc (name);
1028          return 0;                return 0;      
1029      }      }
# Line 1027  check_keyring (char ** r_path) Line 1036  check_keyring (char ** r_path)
1036  }  }
1037    
1038    
1039    /* Return a temp name based on the day of the week. */
1040  static char*  static char*
1041  get_backup_name (const char *templ)  get_backup_name (const char *templ)
1042  {  {
1043      struct tm *tm;      struct tm *tm;
1044        const char *fmt;
1045      char *p;      char *p;
1046        time_t t;
1047    
1048      time_t t = time (NULL);      t = time (NULL);
1049      tm = localtime (&t);      tm = localtime (&t);
1050      p = new char [strlen (templ) + 8 + 1];      fmt = "%s-%d";
1051        p = new char [strlen (templ) + strlen (fmt) + 8 + 1];
1052      if (!p)      if (!p)
1053          BUG (0);          BUG (0);
1054      sprintf (p, "%s-%d", templ, tm->tm_wday % 3);      sprintf (p, fmt, templ, tm->tm_wday % 3);
1055      return p;      return p;
1056  }  }
1057    
1058    
1059    /* Make backups of all keyrings. The public key ring is rotated like
1060       this pubring-%d.gpg.
1061       If @auto_backup is false, no action is performed.
1062       @include_secr indicated if the backup includes the secret keyring. */
1063  void  void
1064  gnupg_backup_keyrings (void)  gnupg_backup_keyrings (int auto_backup, int backup_mode, int include_secr)
1065  {  {
1066      char *srcpath = NULL, *dstpath = NULL;      char *srcpath, *dstpath;
1067      char *name=NULL;      char *name;
1068      int rc, bakmode=0;      int rc;
1069    
1070      if (!reg_prefs.auto_backup)      if (!auto_backup)
1071          return;          return;
1072      bakmode = reg_prefs.backup.mode;      srcpath = get_gnupg_path ();
     srcpath =  get_gnupg_path ();  
1073      check_keyring (&srcpath);      check_keyring (&srcpath);
1074      if (bakmode == 1) {      if (backup_mode == 1) {
1075            /* If the backup mode uses the home directory the source
1076               and destination folder will be the same. */
1077          dstpath = get_gnupg_path ();          dstpath = get_gnupg_path ();
1078          check_keyring (&dstpath);          check_keyring (&dstpath);
1079      }      }
1080      else if (bakmode == 2) {      else if (backup_mode == 2) {
1081          char * tmpfile;          char *tmpfile;
1082          FILE * fp;          FILE *fp;
1083    
1084          dstpath = m_strdup (reg_prefs.backup.path);          dstpath = m_strdup (reg_prefs.backup.path);
         if (!dstpath)  
             BUG (0);  
1085          tmpfile = make_filename (reg_prefs.backup.path, "test", "tmp");          tmpfile = make_filename (reg_prefs.backup.path, "test", "tmp");
1086          fp = fopen (tmpfile, "wb");          fp = fopen (tmpfile, "wb");
1087          if (!fp)          if (!fp)
1088              rc = log_box (_("Backup"), MB_WARN|MB_RETRYCANCEL,              rc = log_box (_("Backup"), MB_WARN|MB_RETRYCANCEL,
1089                            _("The backup drive '%s' does not seems to accessable.\n"                            _("The backup drive '%s' does not seems to be accessable.\n"
1090                              "Please insert/check the drive to continue."), dstpath);                              "Please insert/check the drive to continue."), dstpath);
1091          else {          else {
1092              rc = 0;              rc = 0;
1093              fclose (fp);              fclose (fp);
1094              unlink (tmpfile);              DeleteFile (tmpfile);
1095          }          }
1096          free_if_alloc (tmpfile);          free_if_alloc (tmpfile);
1097          if (!fp || rc == IDCANCEL)          if (!fp || rc == IDCANCEL) {
1098                free_if_alloc (dstpath);
1099                free_if_alloc (srcpath);
1100              return;              return;
1101            }
1102      }      }
1103      else {      else {
1104          log_box (_("Backup"), MB_ERR, _("Invalid backup mode %d"), bakmode);          log_box (_("Backup"), MB_ERR, _("Invalid backup mode %d"), backup_mode);
1105            free_if_alloc (srcpath);
1106          return;          return;
1107      }      }
1108      name = get_backup_name ("pubring-bak");      name = get_backup_name ("pubring-bak");
1109      rc = backup_one_file (srcpath, "pubring", dstpath, name);      rc = backup_one_file (srcpath, "pubring", dstpath, name);
1110      if (!rc)      if (!rc && include_secr)
1111          rc = backup_one_file (srcpath, "secring", dstpath, "secring-bak");          rc = backup_one_file (srcpath, "secring", dstpath, "secring-bak");
1112      free_if_alloc (name);      free_if_alloc (name);
1113      free_if_alloc (srcpath);      free_if_alloc (srcpath);
1114      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);  
1115  }  }
1116    
1117    
   
1118  /* check that the requested GPG keyring exist and.  /* check that the requested GPG keyring exist and.
1119     Return value: 0 for success. */     Return value: 0 for success. */
1120  int  int
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