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

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revision 41 by twoaday, Fri Oct 28 07:15:26 2005 UTC revision 78 by twoaday, Tue Nov 15 08:54:44 2005 UTC
# 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    #define GPG_REG_HOME    "HomeDir"       /* registry name of the home dir. */
45    
46  struct gpg_watcher_s {  struct gpg_watcher_s {
47      FILETIME    last_access;      FILETIME    last_access;
# Line 57  static int check_keyring (char ** r_path Line 63  static int check_keyring (char ** r_path
63    
64  /* Return the application data folder of the current user. */  /* Return the application data folder of the current user. */
65  static char*  static char*
66  multi_gnupg_path (void)  multi_gnupg_path (int strict)
67  {  {
68      static char buf[256+64];      static char buf[256+64];
69      BOOL ec;      BOOL ec;
# Line 66  multi_gnupg_path (void) Line 72  multi_gnupg_path (void)
72      memset (buf, 0, sizeof (buf));      memset (buf, 0, sizeof (buf));
73      /* XXX: ec should be NOERROR (MSDN) but NOERROR is defined as '0' !? */      /* XXX: ec should be NOERROR (MSDN) but NOERROR is defined as '0' !? */
74      ec = SHGetSpecialFolderPath (HWND_DESKTOP, buf, CSIDL_APPDATA, TRUE);      ec = SHGetSpecialFolderPath (HWND_DESKTOP, buf, CSIDL_APPDATA, TRUE);
75      if (ec != 1)      if (ec != 1) {
76            log_debug ("multi_gnupg_path: SHGetSpecialFolderPath() failed\r\n",
77                       (int)GetLastError ());
78          return NULL;          return NULL;
79        }
80      strcat (buf, "\\gnupg");      strcat (buf, "\\gnupg");
81      if (access (buf, 00))      if (strict && access (buf, 00))
82          return NULL;          return NULL;
83      return m_strdup (buf);      return m_strdup (buf);
84  }  }
# Line 81  multi_gnupg_path (void) Line 90  multi_gnupg_path (void)
90  char*  char*
91  get_gnupg_path (void)  get_gnupg_path (void)
92  {  {
93      char *p = NULL, *path = NULL;      char *p = NULL;
94        char *path = NULL;
95            
96      p = get_reg_entry_gpg ("HomeDir");      p = get_reg_entry_gpg (GPG_REG_HOME);
97      if (p) {      if (p) {
98          path = m_strdup (p);          path = m_strdup (p);
99          free_if_alloc (p);          free_if_alloc (p);
100          return path;          return path;
101      }      }
102      else      else
103          return multi_gnupg_path ();          return multi_gnupg_path (1);
104      return m_strdup ("c:\\gnupg");      return m_strdup ("c:\\gnupg");
105  }  }
106    
# Line 100  get_gnupg_path (void) Line 110  get_gnupg_path (void)
110  char*  char*
111  get_gnupg_cfgfile (void)  get_gnupg_cfgfile (void)
112  {      {    
113      char *p = NULL, *optfile = NULL, *path = NULL;      char *p = NULL;
114        char *optfile = NULL;
115        char *path = NULL;
116      size_t nlen = 0;      size_t nlen = 0;
117    
118      path = get_gnupg_path ();      path = get_gnupg_path ();
# Line 151  get_gnupg_keyring (int pub, int strict) Line 163  get_gnupg_keyring (int pub, int 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) || pub && get_file_size (keyring) == 0) {
167          free_if_alloc (keyring);          free_if_alloc (keyring);
168          optfile = make_filename (path, GPG_CONF, NULL);          optfile = make_filename (path, GPG_CONF, NULL);
169          keyring = get_gnupg_keyring_from_options (optfile, pub);          keyring = get_gnupg_keyring_from_options (optfile, pub);
# Line 165  get_gnupg_keyring (int pub, int strict) Line 177  get_gnupg_keyring (int pub, int strict)
177  /* Return the full path (with the gpg exe name). First the registry is scanned  /* Return the full path (with the gpg exe name). First the registry is scanned
178     for the entry 'gpgProgram'. If it wasn't set, the default path is the     for the entry 'gpgProgram'. If it wasn't set, the default path is the
179     appended string 'gpg.exe' is used. */     appended string 'gpg.exe' is used. */
180    
181    /* FIXME:  Use gpgme's engine info here. */
182  char*  char*
183  get_gnupg_prog (void)  get_gnupg_prog (void)
184  {      {    
185      char *p;      char *p;
186      char *pgm = NULL;      char *pgm = NULL;
     size_t nlen = 0;  
187    
188      p = get_reg_entry_gpg ("gpgProgram");      p = get_reg_entry_gpg (GPG_REG_EXE);
189      if (!p) {      if (!p) {
190          char *path = get_gnupg_path ();          char *path = get_gnupg_path ();
191          if (!path)          if (!path)
# Line 194  get_gnupg_prog (void) Line 207  get_gnupg_prog (void)
207  static char *  static char *
208  default_key_from_cache (int *ret_no_useable)  default_key_from_cache (int *ret_no_useable)
209  {  {
210      const char * s;      const char *s;
211      char * keyid = NULL;      char *keyid = NULL;
212      gpgme_key_t key;      gpgme_key_t key;
213      gpg_keycache_t sec = keycache_get_ctx (0);      gpg_keycache_t sec = keycache_get_ctx (0);
214    
# Line 210  default_key_from_cache (int *ret_no_usea Line 223  default_key_from_cache (int *ret_no_usea
223              break;              break;
224          }          }
225      }      }
226      if (!keyid) {      if (!keyid)
227          *ret_no_useable = 1;          *ret_no_useable = 1;
         msg_box (NULL, _("No useable secret key found."), _("GPG Error"), MB_ERR);  
     }  
228      return keyid;      return keyid;
229  }  }
230    
# Line 257  get_gnupg_default_key (void) Line 268  get_gnupg_default_key (void)
268          return default_key_from_cache (&no_usable);          return default_key_from_cache (&no_usable);
269      rc = parse_gpg_options (optfile, &opt);      rc = parse_gpg_options (optfile, &opt);
270      if (rc) {      if (rc) {
271          free_if_alloc( optfile );          free_if_alloc (optfile);
272          return default_key_from_cache( &no_usable );          return default_key_from_cache (&no_usable);
273      }      }
274      e = find_option( opt, "default-key" );      e = find_option( opt, "default-key" );
275      if ( e )      if ( e )
# Line 282  get_gnupg_default_key (void) Line 293  get_gnupg_default_key (void)
293  } /* get_gnupg_default_key */  } /* get_gnupg_default_key */
294    
295    
296    char* get_reg_entry_gpg4win (const char *path);
297    
298    /* Check if GPG4WIN is available and if so, use the
299       install path to figure out where the gpg.exe is. */
300    char*
301    check_for_gpg4win (void)
302    {
303        return get_reg_entry_gpg4win ("gpg.exe");
304    }
305    
306    
307  /* Check if the gpg application (exe file) is available. */  /* Check if the gpg application (exe file) is available. */
308  int  int
309  check_gnupg_prog (void)  check_gnupg_prog (void)
310  {  {
311      char *pgm = NULL;      char *gpgexe = NULL;
312      int rc = 0;      int rc = 0;
313    
314      pgm = get_gnupg_prog ();      gpgexe = get_gnupg_prog ();
315      if (!pgm)      if (!gpgexe || file_exist_check (gpgexe)) {
316          rc = WPTERR_GPG_EXEFILE;          free_if_alloc (gpgexe);
317      if (file_exist_check (pgm))          gpgexe = check_for_gpg4win ();
318          rc = WPTERR_GPG_EXEFILE;          if (!gpgexe || file_exist_check (gpgexe))
319      free_if_alloc (pgm);              rc = WPTERR_GPG_EXEFILE;
320            else
321                set_reg_entry_gpg (GPG_REG_EXE, gpgexe);
322        }
323        free_if_alloc (gpgexe);
324      return rc;      return rc;
325  }  }
326    
# Line 316  parse_version_nr (const char * buf, int Line 342  parse_version_nr (const char * buf, int
342      tmp[i] = 0; buf++;      tmp[i] = 0; buf++;
343      *minor = atol (tmp);      *minor = atol (tmp);
344      i=0;      i=0;
345      while (buf && isdigit( *buf ) && i < 8)      while (buf && isdigit (*buf) && i < 8)
346          tmp[i++] = *buf++;          tmp[i++] = *buf++;
347      tmp[i] = 0;      tmp[i] = 0;
348      *patch = atol (tmp);      *patch = atol (tmp);
# Line 332  check_gnupg_engine (int *r_major, int *r Line 358  check_gnupg_engine (int *r_major, int *r
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 rc;      int rc = 1;
364                    
365      gpgme_new (&ctx);      gpgme_new (&ctx);
366      inf = gpgme_ctx_get_engine_info (ctx);      inf = gpgme_ctx_get_engine_info (ctx);
# Line 342  check_gnupg_engine (int *r_major, int *r Line 368  check_gnupg_engine (int *r_major, int *r
368          gpgme_release (ctx);          gpgme_release (ctx);
369          return -1;          return -1;
370      }      }
371    
372      /* 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. */
373      if (gpg_get_version (&eng))      if (gpg_get_version (&eng))
374          return -1;          return -1;
375      if (strstr (eng, "IDEA"))      if (strstr (eng, "IDEA"))
376          idea_available = 1;          idea_available = 1;
377      free (eng);      free (eng);
378      rc = parse_version_nr( inf->version, &major, &minor, &patch );      rc = parse_version_nr (inf->version, &major, &minor, &patch);
379      if( rc ) {      if (rc) {
380          gpgme_release (ctx);          gpgme_release (ctx);
381          return rc;          return rc;
382      }      }
383      if (major < *r_major || minor < *r_minor)  
384          rc = 1;      if (major > *r_major)
     else {  
         if (patch < *r_patch)  
             rc = 1;  
385          rc = 0;          rc = 0;
386      }      else if (major == *r_major && minor > *r_minor)          
387            rc = 0;
388        else if (major == *r_major && minor == *r_minor &&
389                 patch >= *r_patch)
390            rc = 0;
391    
392      *r_major = major;      *r_major = major;
393      *r_minor = minor;      *r_minor = minor;
394      *r_patch = patch;      *r_patch = patch;
# Line 415  gnupg_access_files (void) Line 444  gnupg_access_files (void)
444          rc = WPTERR_GPG_KEYRINGS;          rc = WPTERR_GPG_KEYRINGS;
445      else      else
446          secring_ok = 1;          secring_ok = 1;
447    
448      if (!pubring_ok || !secring_ok) {      if (!pubring_ok || !secring_ok) {
449          optfile = get_gnupg_cfgfile ();          optfile = get_gnupg_cfgfile ();
450          if (!optfile)          if (!optfile)
451              return WPTERR_GPG_KEYRINGS;              return WPTERR_GPG_KEYRINGS;
452          rc = file_exist_check (optfile);          rc = file_exist_check (optfile);
453          if (!rc && get_file_size(optfile) > 0) {          if (!rc && get_file_size (optfile) > 0) {
454              rc = check_gnupg_cfgfile (optfile, &secrings, &pubrings);              rc = check_gnupg_cfgfile (optfile, &secrings, &pubrings);
455              if (!rc && secrings && pubrings) {              if (!rc && secrings && pubrings) {
456                  free_if_alloc (optfile);                  free_if_alloc (optfile);
# Line 447  create_gpg_options (void) Line 477  create_gpg_options (void)
477      FILE *fp;      FILE *fp;
478      char *s, *optfile;      char *s, *optfile;
479    
480      s = get_gnupg_path( );      s = get_gnupg_path ();
481      if( s == NULL )      if( s == NULL )
482          return WPTERR_FILE_CREAT;          return WPTERR_FILE_CREAT;
483      optfile = make_filename( s, GPG_CONF, NULL );      optfile = make_filename (s, GPG_CONF, NULL);
484      fp = fopen( optfile, "wb" );      fp = fopen( optfile, "wb" );
485      if( fp == NULL ) {        if( fp == NULL ) {  
486          return WPTERR_FILE_CREAT;          return WPTERR_FILE_CREAT;
# Line 759  my_access (const char * fname) Line 789  my_access (const char * fname)
789  }  }
790    
791    
792    /* Check the file permissions of the public keyring.
793       If @showmsg is 1 output a message in case of errors.
794       Return value: 1 if read-only attribute
795                     2 if file is opened by another process exclusively. */
796  int  int
797  gpg_check_permissions (int showmsg)  gpg_check_permissions (int showmsg)
798  {  {
# Line 785  gpg_check_permissions (int showmsg) Line 819  gpg_check_permissions (int showmsg)
819                  }                  }
820              }              }
821              else if (ans == IDNO) {              else if (ans == IDNO) {
822                  /*                  /* 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);  
                 */  
823                  failed = 1;                  failed = 1;
824              }              }
825          }          }
# Line 806  gpg_check_permissions (int showmsg) Line 837  gpg_check_permissions (int showmsg)
837      }      }
838      free_if_alloc (name);      free_if_alloc (name);
839      return failed;      return failed;
840  } /* gpg_check_permissions */  }
841    
842    
843  /* Check the GPG home dir. If all methods failed, try to  /* Check the GPG home dir. If all methods failed, try to
# Line 815  static int Line 846  static int
846  check_homedir (void)  check_homedir (void)
847  {        {      
848      char *homedir = NULL;      char *homedir = NULL;
849      int yes = 0;      int yes = 0, set_reg=0;
850        int rc = 0;
851    
852      homedir = get_reg_entry_gpg ("HomeDir");      homedir = get_reg_entry_gpg (GPG_REG_HOME);
853      if (!homedir)      if (!homedir) {
854          homedir = multi_gnupg_path ();          set_reg = 1;
855            homedir = multi_gnupg_path (0);
856        }
857      if (!homedir)      if (!homedir)
858          homedir = m_strdup ("c:\\gnupg");          homedir = m_strdup ("c:\\gnupg");
859      if (homedir) {      if (homedir) {
# Line 828  check_homedir (void) Line 862  check_homedir (void)
862                             _("%s does not exit.\n"                             _("%s does not exit.\n"
863                               "Do you want to create this directory?"), homedir);                               "Do you want to create this directory?"), homedir);
864              if (yes == IDYES) {              if (yes == IDYES) {
865                  BOOL ec = CreateDirectory (homedir, NULL);                  if (!CreateDirectory (homedir, NULL))
866                  free_if_alloc (homedir);                      rc = WPTERR_DIR_CREAT;
                 if (ec == FALSE)  
                     return WPTERR_DIR_CREAT;  
                 return 0;  
867              }              }
868              return WPTERR_DIR_OPEN;              else
869                    rc = WPTERR_DIR_OPEN;
870          }          }
871            if (set_reg)
872                set_reg_entry_gpg (GPG_REG_HOME, homedir);
873          free_if_alloc (homedir);          free_if_alloc (homedir);
874      }      }
875      return 0;      return rc;
876  }  }
877    
878    
# Line 847  gnupg_check_homedir (void) Line 881  gnupg_check_homedir (void)
881  {        {      
882      char *homedir = NULL;      char *homedir = NULL;
883      char *prog = NULL;      char *prog = NULL;
884      int rc = 0, ec = 0;      int rc = 0;
885            
886      rc = check_homedir ();      rc = check_homedir ();
887      if (rc)      if (rc)
888          return rc;          return rc;
889      if ((homedir = get_reg_entry_gpg ("HomeDir")) &&      if ((homedir = get_reg_entry_gpg (GPG_REG_HOME)) &&
890          !(prog = get_reg_entry_gpg ("gpgProgram" ))) {          !(prog = get_reg_entry_gpg (GPG_REG_EXE ))) {
891          prog = make_filename (homedir, "gpg", "exe");          prog = make_filename (homedir, "gpg", "exe");
892          if (file_exist_check (prog) == 0) {          if (file_exist_check (prog) == 0) {
893              rc = set_reg_entry_gpg ("gpgProgram", prog);              rc = set_reg_entry_gpg (GPG_REG_EXE, prog);
894              if (rc)              if (rc)
895                  goto fail;                  goto fail;
896          }          }
# Line 864  gnupg_check_homedir (void) Line 898  gnupg_check_homedir (void)
898          free_if_alloc (prog);          free_if_alloc (prog);
899          return rc;          return rc;
900      }      }
901      if ((prog = get_reg_entry_gpg ("gpgProgram"))      if ((prog = get_reg_entry_gpg (GPG_REG_EXE))
902          && file_exist_check (prog)) {          && file_exist_check (prog)) {
903          free_if_alloc (prog);          free_if_alloc (prog);
904          homedir = get_reg_entry_gpg ("HomeDir");          homedir = get_reg_entry_gpg (GPG_REG_HOME);
905          if (!homedir) {          if (!homedir) {
906              rc = WPTERR_GENERAL;              rc = WPTERR_GENERAL;
907              goto fail;              goto fail;
908          }          }
909          prog = make_filename (homedir, "gpg", "exe");          prog = make_filename (homedir, "gpg", "exe");
910          if (file_exist_check (prog) == 0) {          if (file_exist_check (prog) == 0) {
911              rc = set_reg_entry_gpg ("gpgProgram", prog);              rc = set_reg_entry_gpg (GPG_REG_EXE, prog);
912              if (rc)              if (rc)
913                  goto fail;                  goto fail;
914              free_if_alloc (prog);              free_if_alloc (prog);
# Line 907  gnupg_copy_keyrings (void) Line 941  gnupg_copy_keyrings (void)
941          return WPTERR_GENERAL;          return WPTERR_GENERAL;
942      hwnd = GetDesktopWindow ();      hwnd = GetDesktopWindow ();
943    
944      pring = get_filename_dlg (hwnd, FILE_OPEN, _("Please choose your public keyring"),      pring = get_fileopen_dlg (hwnd, _("Please choose your public keyring"),
945                                _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),NULL);                                _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),NULL);
946      if (!pring) {      if (!pring) {
947          msg_box (hwnd, _("No keyring was chosen. Exit."), _("WinPT Error"), MB_ERR);          msg_box (hwnd, _("No keyring was chosen. Exit."), _("WinPT Error"), MB_ERR);
# Line 927  gnupg_copy_keyrings (void) Line 961  gnupg_copy_keyrings (void)
961      }      }
962      free_if_alloc (file);      free_if_alloc (file);
963    
964      sring = get_filename_dlg (hwnd, FILE_OPEN, _("Please choose your secret keyring"),      sring = get_fileopen_dlg (hwnd, _("Please choose your secret keyring"),
965                                _("GPG Keyrings (*.gpg)\0*.gpg\0\0"), NULL);                                _("GPG Keyrings (*.gpg)\0*.gpg\0\0"), NULL);
966      if (!sring) {      if (!sring) {
967          msg_box( NULL, _("No keyring was chosen. Exit."), _("WinPT Error"), MB_ERR );          msg_box( NULL, _("No keyring was chosen. Exit."), _("WinPT Error"), MB_ERR );
# Line 1075  gnupg_backup_keyrings (void) Line 1109  gnupg_backup_keyrings (void)
1109          else {          else {
1110              rc = 0;              rc = 0;
1111              fclose (fp);              fclose (fp);
1112              unlink (tmpfile);              remove (tmpfile);
1113          }          }
1114          free_if_alloc (tmpfile);          free_if_alloc (tmpfile);
1115          if (!fp || rc == IDCANCEL)          if (!fp || rc == IDCANCEL)
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