/[winpt]/trunk/Src/wptGPG.cpp
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Diff of /trunk/Src/wptGPG.cpp

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revision 78 by twoaday, Tue Nov 15 08:54:44 2005 UTC revision 137 by twoaday, Mon Jan 9 14:01:51 2006 UTC
# Line 62  static int check_keyring (char ** r_path Line 62  static int check_keyring (char ** r_path
62    
63    
64  /* Return the application data folder of the current user. */  /* Return the application data folder of the current user. */
65  static char*  char*
66  multi_gnupg_path (int strict)  multi_gnupg_path (int strict)
67  {  {
68      static char buf[256+64];      static char buf[256+64];
# Line 84  multi_gnupg_path (int strict) Line 84  multi_gnupg_path (int strict)
84  }  }
85    
86    
87  /* 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
88     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. */
 */  
89  char*  char*
90  get_gnupg_path (void)  get_gnupg_path (void)
91  {  {
92      char *p = NULL;      char *path;
93      char *path = NULL;  
94            path = get_reg_entry_gpg (GPG_REG_HOME);
95      p = get_reg_entry_gpg (GPG_REG_HOME);      if (path) {
96      if (p) {          if (dir_exist_check (path) == 0)
97          path = m_strdup (p);              return path;
98          free_if_alloc (p);          free_if_alloc (path);
         return path;  
99      }      }
100      else      path = multi_gnupg_path (1);
101          return multi_gnupg_path (1);      return path;
     return m_strdup ("c:\\gnupg");  
102  }  }
103    
104    
# Line 159  get_gnupg_keyring (int pub, int strict) Line 156  get_gnupg_keyring (int pub, int strict)
156      if (!path)      if (!path)
157          return NULL;          return NULL;
158      keyring = make_filename (path, pub? "pubring" : "secring", "gpg");      keyring = make_filename (path, pub? "pubring" : "secring", "gpg");
159      if (!strict && !file_exist_check (keyring)) {      if (strict && !file_exist_check (keyring)) {
160            free_if_alloc (path);
161            return keyring;
162        }
163        else if (!strict) {
164          free_if_alloc (path);          free_if_alloc (path);
165          return keyring;          return keyring;
166      }      }
# Line 293  get_gnupg_default_key (void) Line 294  get_gnupg_default_key (void)
294  } /* get_gnupg_default_key */  } /* get_gnupg_default_key */
295    
296    
 char* get_reg_entry_gpg4win (const char *path);  
   
297  /* Check if GPG4WIN is available and if so, use the  /* Check if GPG4WIN is available and if so, use the
298     install path to figure out where the gpg.exe is. */     install path to figure out where the gpg.exe is. */
299  char*  char*
# Line 326  check_gnupg_prog (void) Line 325  check_gnupg_prog (void)
325    
326    
327  static int  static int
328  parse_version_nr (const char * buf, int *major, int *minor, int *patch)  parse_version_nr (const char *buf, int *major, int *minor, int *patch)
329  {  {
330      char tmp[8];      char tmp[8];
331      int i;      int i;
# Line 354  parse_version_nr (const char * buf, int Line 353  parse_version_nr (const char * buf, int
353     version given in @r_major.@r_minor.@r_patch. On success these     version given in @r_major.@r_minor.@r_patch. On success these
354     variables contain the GPG version which is installed. */     variables contain the GPG version which is installed. */
355  int  int
356  check_gnupg_engine (int *r_major, int *r_minor, int *r_patch)  check_gnupg_engine (const char *need_gpg_ver,
357                        int *r_major, int *r_minor, int *r_patch)
358  {  {
359      gpgme_ctx_t ctx;      gpgme_ctx_t ctx;
360      gpgme_engine_info_t inf;      gpgme_engine_info_t inf;
361      char *eng = NULL;      char *eng = NULL;
362      int major=0, minor=0, patch=0;      int major=0, minor=0, patch=0;
363        int need_major = 0, need_minor = 0, need_patch = 0;
364      int rc = 1;      int rc = 1;
365            
366        /* Convert the needed GPG version to the integer format. */
367        rc = parse_version_nr (need_gpg_ver,
368                               &need_major, &need_minor, &need_patch);
369        if (rc)
370            return rc;
371        
372      gpgme_new (&ctx);      gpgme_new (&ctx);
373      inf = gpgme_ctx_get_engine_info (ctx);      inf = gpgme_ctx_get_engine_info (ctx);
374      if (!inf) {      if (!inf) {
# Line 381  check_gnupg_engine (int *r_major, int *r Line 388  check_gnupg_engine (int *r_major, int *r
388          return rc;          return rc;
389      }      }
390    
391      if (major > *r_major)      if (major > need_major)
392          rc = 0;          rc = 0;
393      else if (major == *r_major && minor > *r_minor)                else if (major == need_major && minor > need_minor)      
394          rc = 0;          rc = 0;
395      else if (major == *r_major && minor == *r_minor &&      else if (major == need_major && minor == need_minor &&
396               patch >= *r_patch)               patch >= need_patch)
397          rc = 0;          rc = 0;
398    
399        /* Return the current GPG version. */
400      *r_major = major;      *r_major = major;
401      *r_minor = minor;      *r_minor = minor;
402      *r_patch = patch;      *r_patch = patch;
# Line 424  check_gnupg_cfgfile (const char *fname, Line 432  check_gnupg_cfgfile (const char *fname,
432  } /* check_gnupg_cfgfile */  } /* check_gnupg_cfgfile */
433    
434    
435  /*  /* Usually GPG creates the pubring.gpg, secring.gpg on
436   * Check if both keyrings are located in the gnupg home directory.     the first start, but to make sure they always exist
437   */     create them empty if needed. */
438    static void
439    create_empty_keyring (int _pub)
440    {
441        char *name;
442        FILE *f;
443    
444        name = get_gnupg_keyring (_pub, 0);
445        if (file_exist_check (name) != 0) {
446            f = fopen (name, "ab");
447            if (f != NULL)
448                fclose (f);
449        }
450        free_if_alloc (name);
451    }
452    
453    
454    /* Check if both keyrings are located in the gnupg home directory. */
455  int  int
456  gnupg_access_files (void)  gnupg_access_files (void)
457  {  {
# Line 435  gnupg_access_files (void) Line 460  gnupg_access_files (void)
460      int secrings = 0, pubrings = 0;      int secrings = 0, pubrings = 0;
461      char *optfile;      char *optfile;
462    
463        create_empty_keyring (1);
464      if (gnupg_access_keyring (1))      if (gnupg_access_keyring (1))
465          rc = WPTERR_GPG_KEYRINGS;          rc = WPTERR_GPG_KEYRINGS;
466      else      else
467          pubring_ok = 1;          pubring_ok = 1;
468    
469        create_empty_keyring (0);
470      if (gnupg_access_keyring (0))      if (gnupg_access_keyring (0))
471          rc = WPTERR_GPG_KEYRINGS;          rc = WPTERR_GPG_KEYRINGS;
472      else      else
# Line 468  gnupg_access_files (void) Line 495  gnupg_access_files (void)
495          rc = WPTERR_GPG_KEYRINGS;          rc = WPTERR_GPG_KEYRINGS;
496      }      }
497      return rc;      return rc;
498  } /* gnupg_access_files */  }
499    
500    
501  static int  static int
# Line 481  create_gpg_options (void) Line 508  create_gpg_options (void)
508      if( s == NULL )      if( s == NULL )
509          return WPTERR_FILE_CREAT;          return WPTERR_FILE_CREAT;
510      optfile = make_filename (s, GPG_CONF, NULL);      optfile = make_filename (s, GPG_CONF, NULL);
511      fp = fopen( optfile, "wb" );      fp = fopen (optfile, "wb");
512      if( fp == NULL ) {        if (fp == NULL) {  
513          return WPTERR_FILE_CREAT;          return WPTERR_FILE_CREAT;
514          goto fail;          goto fail;
515      }      }
516      fwrite( options_skel, 1, strlen( options_skel ), fp );      fwrite (options_skel, 1, strlen (options_skel), fp);
517      fclose( fp );      fclose (fp);
518    
519  fail:  fail:
520      free_if_alloc( s );      free_if_alloc (s);
521      free_if_alloc( optfile );      free_if_alloc (optfile);
522      return 0;      return 0;
523  } /* create_gpg_options */  } /* create_gpg_options */
524    
# Line 671  check_last_gnupg_access (gpg_watcher_s * Line 698  check_last_gnupg_access (gpg_watcher_s *
698      if (ctx->last_access.dwHighDateTime != ctx->access.dwHighDateTime &&      if (ctx->last_access.dwHighDateTime != ctx->access.dwHighDateTime &&
699          ctx->last_access.dwLowDateTime != ctx->access.dwLowDateTime)          ctx->last_access.dwLowDateTime != ctx->access.dwLowDateTime)
700          ctx->modified = 1;          ctx->modified = 1;
701        
702        /* XXX: find a better way. without it, winpt --keymanager loads
703                the key cache twice. */
704        if (ctx->last_access.dwLowDateTime == 0)
705            ctx->modified = 0;
706    
707      ctx->last_access.dwLowDateTime = ctx->access.dwLowDateTime;      ctx->last_access.dwLowDateTime = ctx->access.dwLowDateTime;
708      ctx->last_access.dwHighDateTime = ctx->access.dwHighDateTime;      ctx->last_access.dwHighDateTime = ctx->access.dwHighDateTime;
# Line 777  get_gnupg_keyring_from_options (const ch Line 809  get_gnupg_keyring_from_options (const ch
809    
810  /* XXX: does not work with write-protected floppies */  /* XXX: does not work with write-protected floppies */
811  static int  static int
812  my_access (const char * fname)  my_access (const char *fname)
813  {  {
814      HANDLE hd;      HANDLE hd;
815      hd = CreateFile (fname, GENERIC_WRITE, FILE_SHARE_WRITE,      hd = CreateFile (fname, GENERIC_WRITE, FILE_SHARE_WRITE,
# Line 796  my_access (const char * fname) Line 828  my_access (const char * fname)
828  int  int
829  gpg_check_permissions (int showmsg)  gpg_check_permissions (int showmsg)
830  {  {
831      char * p, * name = NULL;      char *p = NULL;
832        char *name = NULL;
833      int failed = 0, ans=0, attrs=0;      int failed = 0, ans=0, attrs=0;
834    
835      p = get_gnupg_path ();      p = get_gnupg_path ();
836      check_keyring (&p);      if (check_keyring (&p) && p) {
     if (p) {  
837          name = make_filename (p, "pubring", "gpg");          name = make_filename (p, "pubring", "gpg");
         free_if_alloc (p);  
838          if ((attrs=GetFileAttributes (name)) & FILE_ATTRIBUTE_READONLY) {          if ((attrs=GetFileAttributes (name)) & FILE_ATTRIBUTE_READONLY) {
839              ans = msg_box (NULL,              ans = msg_box (NULL,
840                             _("The selected keyring has the read-only file\n"                             _("The selected keyring has the read-only file\n"
# Line 835  gpg_check_permissions (int showmsg) Line 866  gpg_check_permissions (int showmsg)
866              failed = 2;              failed = 2;
867          }          }
868      }      }
869        free_if_alloc (p);
870      free_if_alloc (name);      free_if_alloc (name);
871      return failed;      return failed;
872  }  }
873    
874    
875  /* Check the GPG home dir. If all methods failed, try to  /* Check the GPG home dir. First try to read the 'HomeDir' registry entry,
876     create the default folder. */     then check for $APPDATA\gnupg. Create the dir if it does not exists. */
877  static int  int
878  check_homedir (void)  gnupg_check_homedir (void)
879  {        {      
880      char *homedir = NULL;      char *homedir = NULL;
881      int yes = 0, set_reg=0;      int val = 0;
882      int rc = 0;      int rc = 0;
883    
884      homedir = get_reg_entry_gpg (GPG_REG_HOME);      homedir = get_reg_entry_gpg (GPG_REG_HOME);
     if (!homedir) {  
         set_reg = 1;  
         homedir = multi_gnupg_path (0);  
     }  
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                  if (!CreateDirectory (homedir, NULL))                  if (!CreateDirectory (homedir, NULL))
894                      rc = WPTERR_DIR_CREAT;                      rc = WPTERR_DIR_CREAT;
895              }              }
896              else              else
897                  rc = WPTERR_DIR_OPEN;                  rc = WPTERR_DIR_OPEN;
898          }          }
         if (set_reg)  
             set_reg_entry_gpg (GPG_REG_HOME, homedir);  
899          free_if_alloc (homedir);          free_if_alloc (homedir);
900      }      }
901      return rc;      return rc;
# Line 877  check_homedir (void) Line 903  check_homedir (void)
903    
904    
905  int  int
 gnupg_check_homedir (void)  
 {        
     char *homedir = NULL;  
     char *prog = NULL;  
     int rc = 0;  
       
     rc = check_homedir ();  
     if (rc)  
         return rc;  
     if ((homedir = get_reg_entry_gpg (GPG_REG_HOME)) &&  
         !(prog = get_reg_entry_gpg (GPG_REG_EXE ))) {  
         prog = make_filename (homedir, "gpg", "exe");  
         if (file_exist_check (prog) == 0) {  
             rc = set_reg_entry_gpg (GPG_REG_EXE, prog);  
             if (rc)  
                 goto fail;  
         }  
         free_if_alloc (homedir);  
         free_if_alloc (prog);  
         return rc;  
     }  
     if ((prog = get_reg_entry_gpg (GPG_REG_EXE))  
         && file_exist_check (prog)) {  
         free_if_alloc (prog);  
         homedir = get_reg_entry_gpg (GPG_REG_HOME);  
         if (!homedir) {  
             rc = WPTERR_GENERAL;  
             goto fail;  
         }  
         prog = make_filename (homedir, "gpg", "exe");  
         if (file_exist_check (prog) == 0) {  
             rc = set_reg_entry_gpg (GPG_REG_EXE, 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);  
     return rc;  
 } /* gnupg_check_homedir */  
   
   
 int  
906  gnupg_copy_keyrings (void)  gnupg_copy_keyrings (void)
907  {  {
908      const char * pring, * sring;      const char * pring, * sring;
# Line 985  fail: Line 959  fail:
959  } /* gnupg_import_keyrings */  } /* gnupg_import_keyrings */
960    
961    
962    /* Backup the gpg.conf file. */
963  void  void
964  gnupg_backup_options (void)  gnupg_backup_options (void)
965  {  {
# Line 992  gnupg_backup_options (void) Line 967  gnupg_backup_options (void)
967      char bak[512];      char bak[512];
968    
969      cfgfile = get_gnupg_cfgfile ();      cfgfile = get_gnupg_cfgfile ();
970      if (cfgfile == NULL)      if (!cfgfile)
971          return;          return;
972      _snprintf (bak, DIM (bak)-1, "%s.bak", cfgfile);      _snprintf (bak, DIM (bak)-1, "%s.bak", cfgfile);
973      CopyFile (cfgfile, bak, FALSE);      CopyFile (cfgfile, bak, FALSE);
974      free_if_alloc (cfgfile);      free_if_alloc (cfgfile);
975  } /* gnupg_backup_options */  }
   
976    
977    
978  static int  static int
# Line 1026  backup_one_file (const char *srcpath, co Line 1000  backup_one_file (const char *srcpath, co
1000  } /* backup_one_file */  } /* backup_one_file */
1001    
1002    
1003    /* Figure out first public keyring which is not empty.
1004       Return value: 1 on success. */
1005  static int  static int
1006  check_keyring (char ** r_path)  check_keyring (char **r_path)
1007  {  {
1008      char * p;      char *p;
1009      char * opt, * name;      char *opt;
1010        char *name;
1011    
1012      if (!*r_path)      if (!*r_path)
1013          return 0;          return 0;
1014      p = make_filename (*r_path, "pubring", "gpg");      p = make_filename (*r_path, "pubring", "gpg");
1015      if (!p || get_file_size (p) > 0)      if (!p || get_file_size (p) <= 0)
1016          return 0;          return 0;
1017    
1018      opt = get_gnupg_cfgfile ();      opt = get_gnupg_cfgfile ();
# Line 1047  check_keyring (char ** r_path) Line 1024  check_keyring (char ** r_path)
1024      if (!name)      if (!name)
1025          return 0;          return 0;
1026      p = strrchr (name, '\\');      p = strrchr (name, '\\');
1027      if (!p)      if (!p) {
     {  
1028          free_if_alloc (name);          free_if_alloc (name);
1029          return 0;                return 0;      
1030      }      }
# Line 1061  check_keyring (char ** r_path) Line 1037  check_keyring (char ** r_path)
1037  }  }
1038    
1039    
1040    /* Return a temp name based on the day of the week. */
1041  static char*  static char*
1042  get_backup_name (const char *templ)  get_backup_name (const char *templ)
1043  {  {
1044      struct tm *tm;      struct tm *tm;
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];      p = new char [strlen (templ) + 8 + 1];
1051      if (!p)      if (!p)
# Line 1077  get_backup_name (const char *templ) Line 1055  get_backup_name (const char *templ)
1055  }  }
1056    
1057    
1058    /* Make backups of all keyrings. The public key ring is
1059       rotated like this pubring-%d.gpg. */
1060  void  void
1061  gnupg_backup_keyrings (void)  gnupg_backup_keyrings (void)
1062  {  {
# Line 1087  gnupg_backup_keyrings (void) Line 1067  gnupg_backup_keyrings (void)
1067      if (!reg_prefs.auto_backup)      if (!reg_prefs.auto_backup)
1068          return;          return;
1069      bakmode = reg_prefs.backup.mode;      bakmode = reg_prefs.backup.mode;
1070      srcpath =  get_gnupg_path ();      srcpath = get_gnupg_path ();
1071      check_keyring (&srcpath);      check_keyring (&srcpath);
1072      if (bakmode == 1) {      if (bakmode == 1) {
1073          dstpath = get_gnupg_path ();          dstpath = multi_gnupg_path (1);
1074          check_keyring (&dstpath);          check_keyring (&dstpath);
1075      }      }
1076      else if (bakmode == 2) {      else if (bakmode == 2) {
1077          char * tmpfile;          char *tmpfile;
1078          FILE * fp;          FILE *fp;
1079    
1080          dstpath = m_strdup (reg_prefs.backup.path);          dstpath = m_strdup (reg_prefs.backup.path);
1081          if (!dstpath)          if (!dstpath)
# Line 1126  gnupg_backup_keyrings (void) Line 1106  gnupg_backup_keyrings (void)
1106      free_if_alloc (name);      free_if_alloc (name);
1107      free_if_alloc (srcpath);      free_if_alloc (srcpath);
1108      free_if_alloc (dstpath);      free_if_alloc (dstpath);
1109  } /* gnupg_backup_keyrings */  }
1110    
1111    
1112  /* Display GPG error from file if possible. */  /* Display GPG error from file if possible. */
# Line 1144  gnupg_display_error (void) Line 1124  gnupg_display_error (void)
1124          return;          return;
1125      fp = fopen( tmpath, "rb" );      fp = fopen( tmpath, "rb" );
1126      if (!fp) {      if (!fp) {
1127          msg_box( NULL, _("No GPG error description available."), _("GPG Error"), MB_INFO );          msg_box (NULL, _("No GPG error description available."),
1128                     _("GPG Error"), MB_INFO);
1129          return;          return;
1130      }      }
1131      errstr = new char[size+1];      errstr = new char[size+1];
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