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/* wptKeyPropsDlg.cpp - WinPT key property dialog |
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* Copyright (C) 2000-2003, 2005-2006, 2008 Timo Schulz |
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* |
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* This file is part of WinPT. |
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* |
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* WinPT is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* WinPT is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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*/ |
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#ifdef HAVE_CONFIG_H |
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#include <config.h> |
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#endif |
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|
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#include <windows.h> |
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#include <assert.h> |
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|
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#include "resource.h" |
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#include "wptErrors.h" |
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#include "wptGPG.h" |
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#include "wptCommonCtl.h" |
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#include "wptContext.h" /* for passphrase_s */ |
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#include "wptNLS.h" |
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#include "wptDlgs.h" |
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#include "wptTypes.h" |
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#include "wptKeylist.h" |
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#include "wptW32API.h" |
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#include "wptVersion.h" |
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#include "wptKeyEdit.h" |
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|
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|
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/* Context to store associated data of the dialog. */ |
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struct prop_info_s { |
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winpt_key_t key; |
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char photo_file[MAX_PATH+128+1]; |
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bool has_photo; |
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}; |
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|
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|
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/* Check that the key is not expired or revoked. */ |
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static int |
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do_check_key (gpgme_key_t key) |
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{ |
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int invalid; |
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|
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invalid = key->expired; |
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if (!invalid) |
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invalid = key->revoked; |
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return invalid; |
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} |
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|
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|
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/* Convert a trust integer into a string representation. */ |
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static const char* |
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ownertrust_to_string (int val, bool is_keypair) |
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{ |
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const char *inf; |
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int id = val; |
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|
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switch (id) { |
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case 1: inf = _("Don't know"); break; |
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case 2: inf = _("I do NOT trust"); break; |
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case 3: inf = _("I trust marginally"); break; |
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case 4: inf = _("I trust fully"); break; |
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case 5: |
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case 6: |
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if (is_keypair) |
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inf = _("I trust ultimately (implicit)"); |
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else |
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inf = _("I trust ultimately"); break; |
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default:inf = _("Unknown"); break; |
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} |
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|
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return inf; |
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} |
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|
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|
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int |
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get_photo_tmpname (gpgme_key_t key, char *buf, size_t buflen) |
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{ |
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const char *fmt = "winpt_photo_%p.tmp"; |
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char name[64]; |
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|
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if (buflen < (MAX_PATH+strlen(fmt)+8+1)) |
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return WPTERR_GENERAL; |
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_snprintf (name, DIM (name)-1, fmt, key); |
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get_temp_name (buf, buflen-1, name); |
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return 0; |
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} |
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|
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|
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|
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|
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/* Load the photo from the key @key */ |
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int |
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key_load_photo (winpt_key_t key, |
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char *photo_file, size_t photo_file_size, |
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gpgme_validity_t *r_valid) |
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{ |
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FILE *fp; |
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const BYTE *img; |
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DWORD imglen; |
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|
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img = key->ext->attrib.d; |
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imglen = key->ext->attrib.len; |
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if (img && !key->ext->attrib.validity) |
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get_uat_validity (key->ctx->subkeys->keyid, |
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&key->ext->attrib.validity); |
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if (r_valid) |
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*r_valid = key->ext->attrib.validity; |
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|
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if (!img || imglen < 1) |
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return -1; |
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|
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get_photo_tmpname (key->ctx, photo_file, photo_file_size); |
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fp = fopen (photo_file, "wb"); |
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if (fp != NULL) { |
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const int pos = 16; |
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fwrite (img + pos, 1, imglen - pos, fp); |
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fclose (fp); |
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return 0; |
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} |
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|
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return -1; |
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} |
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|
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|
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/* Return string representation of the key validity. @key. */ |
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static const char* |
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get_validity (gpgme_key_t key) |
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{ |
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if (key->expired) |
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return _("Expired"); |
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if (key->revoked) |
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return _("Revoked"); |
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if (key->disabled) |
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return _("Disabled"); |
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if (key->invalid) |
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return _("Invalid"); |
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return get_key_trust2 (NULL, key->uids->validity, 0, 0); |
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} |
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|
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|
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/* Return true if the key has designated revokers. */ |
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static bool |
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check_for_desig_rev (gpgme_key_t key) |
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{ |
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winpt_key_s k; |
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|
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memset (&k, 0, sizeof (k)); |
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if (!winpt_get_pubkey (key->subkeys->keyid, &k)) |
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return k.ext->gloflags.has_desig_rev? true : false; |
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return false; |
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} |
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|
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|
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/* Print information (name) of the smart card. */ |
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static const char* |
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get_card_type (winpt_key_t k) |
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{ |
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static char buf[64]; |
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|
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if (!k->ext || !k->ext->card_type) |
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return ""; |
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_snprintf (buf, DIM (buf)-1, _("Card-Type: %s\r\n"), |
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k->ext->card_type); |
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return buf; |
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} |
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|
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|
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/* Return 1 if at least one user-ID is valid. */ |
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static int |
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key_is_valid (gpgme_key_t key) |
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{ |
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gpgme_user_id_t u; |
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|
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for (u=key->uids; u; u=u->next) { |
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if (u->validity >= GPGME_VALIDITY_MARGINAL) |
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return 1; |
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} |
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return 0; |
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} |
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|
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|
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/* Return extended algorithm information. */ |
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const char* |
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props_get_key_algo (gpgme_key_t key, int idx) |
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{ |
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/* PGP calls the old RSAv3 keys 'RSA Legacy' and because this |
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is a good method to differ between OpenPGP v4 cert-only keys |
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and v3 RSA keys, we use the same notation. */ |
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if (key->subkeys != NULL && strlen (key->subkeys->fpr) == 32) |
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return "RSA Legacy"; |
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return get_key_algo (key, idx); |
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} |
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|
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|
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/* Display the key information for key @k. */ |
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static void |
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display_key_info (HWND dlg, winpt_key_t k) |
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{ |
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gpgme_key_t key; |
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struct winpt_key_s sk; |
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char info[512]; |
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const char *inf; |
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DWORD created, expires; |
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|
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gpg_keycache_update_attr (k->ext, KC_ATTR_PREFSYM, 0); |
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memset (&sk, 0, sizeof (sk)); |
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if (k->key_pair && !winpt_get_seckey (k->keyid, &sk)) |
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k->is_protected = sk.is_protected; |
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key = k->ext->key; |
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created = key->subkeys->timestamp; |
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expires = key->subkeys->expires; |
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_snprintf (info, DIM (info)-1, |
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_("Type: %s\r\n" |
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"Key ID: 0x%s\r\n" |
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"Algorithm: %s\r\n" |
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"Size: %s bits\r\n" |
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"Created: %s\r\n" |
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"Expires: %s\r\n" |
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"Validity: %s\r\n" |
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"%s\r\n"), |
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get_key_type (key), |
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k->keyid, |
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props_get_key_algo (key, 0), |
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get_key_size (key, 0), |
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get_key_created (created), |
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get_key_expire_date (expires), |
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get_validity (key), |
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get_card_type (&sk)); |
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|
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SetDlgItemText (dlg, IDC_KEYPROPS_INFO, info); |
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SetDlgItemText (dlg, IDC_KEYPROPS_FPR, get_key_fpr (key)); |
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inf = ownertrust_to_string (key->owner_trust, k->key_pair); |
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SetDlgItemText (dlg, IDC_KEYPROPS_OT, inf); |
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} |
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|
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|
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|
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static void |
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on_init_dialog (HWND dlg, WPARAM wparam, LPARAM lparam) |
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{ |
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winpt_key_t k = (winpt_key_t)lparam; |
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assert (k != NULL); |
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SetWindowText (dlg, _("Key Properties")); |
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SetDlgItemText (dlg, IDC_KEYPROPS_OT_CHANGE, _("&Change")); |
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SetDlgItemText (dlg, IDC_KEYPROPS_REVOKERS, _("&Revokers")); |
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SetDlgItemText (dlg, IDC_KEYPROPS_CHANGE_PWD, _("Change &Password")); |
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SetDlgItemText (dlg, IDC_KEYPROPS_OTINF, _("Ownertrust:")); |
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SetDlgItemText (dlg, IDC_KEYPROPS_FPRTXT, _("Fingerprint:")); |
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|
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display_key_info (dlg, k); |
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|
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if (k->key_pair) |
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EnableWindow (GetDlgItem (dlg, IDC_KEYPROPS_CHANGE_PWD), TRUE); |
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if (check_for_desig_rev (k->ctx)) |
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EnableWindow (GetDlgItem (dlg, IDC_KEYPROPS_REVOKERS), TRUE); |
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if (do_check_key (k->ctx)) |
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EnableWindow (GetDlgItem (dlg, IDC_KEYPROPS_OT_CHANGE), FALSE); |
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center_window (dlg, NULL); |
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SetForegroundWindow (dlg); |
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} |
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|
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|
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/* Dialog box procedure to show the key properties. */ |
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BOOL CALLBACK |
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keyprops_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam) |
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{ |
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struct prop_info_s *prop = NULL; |
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const char *inf; |
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gpgme_validity_t valid; |
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int rc; |
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|
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if (msg != WM_INITDIALOG) { |
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prop = (struct prop_info_s*)GetWindowLong (dlg, GWL_USERDATA); |
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if (prop == NULL) |
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return FALSE; |
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} |
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|
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switch (msg) { |
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case WM_INITDIALOG: |
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assert (lparam != 0); |
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prop = new struct prop_info_s; |
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prop->key = (winpt_key_t)lparam; |
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prop->has_photo = 0; |
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SetWindowLong (dlg, GWL_USERDATA, (LONG)prop); |
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on_init_dialog (dlg, wparam, lparam); |
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if (!key_load_photo (prop->key, |
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prop->photo_file, DIM (prop->photo_file)-1, |
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&valid)) { |
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prop->key->has_photo = 1; |
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prop->has_photo = true; |
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if (valid < GPGME_VALIDITY_MARGINAL) |
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SetDlgItemText (dlg, IDC_KEYPROPS_IMGINF, |
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_("Photo-ID not validated.")); |
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} |
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return TRUE; |
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|
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case WM_DESTROY: |
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if (prop->has_photo) |
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DeleteFile(prop->photo_file); |
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delete prop;prop = NULL; |
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SetWindowLong (dlg, GWL_USERDATA, 0); |
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break; |
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|
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case WM_PAINT: |
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/* Display the photo in the frame of the dialog @dlg. |
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The coordinates are fixed to (0,0). */ |
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if (prop->has_photo) { |
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POINT p; |
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p.x = p.y = 0; |
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/* In case of errors we disable the flag to |
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avoid an infinite loop. */ |
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if (jpg_show (GetDlgItem (dlg, IDC_KEYPROPS_IMG), |
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&p, prop->photo_file)) |
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prop->has_photo = false; |
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} |
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break; |
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|
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case WM_COMMAND: |
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switch (LOWORD (wparam)) { |
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case IDOK: |
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EndDialog (dlg, TRUE); |
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return TRUE; |
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|
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case IDCANCEL: |
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EndDialog (dlg, FALSE); |
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return TRUE; |
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|
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case IDC_KEYPROPS_OT_CHANGE: |
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if (!prop->key->key_pair && !key_is_valid (prop->key->ctx)) { |
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rc = msg_box (dlg, _("This is a non-valid key.\n" |
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"Modifying the ownertrust has no effect on such keys.\n\n" |
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"Do you really want to continue?"), |
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_("WinPT Warning"), MB_ICONWARNING|MB_YESNO); |
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if (rc == IDNO) |
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return TRUE; |
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} |
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rc = dialog_box_param (glob_hinst, |
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(LPCSTR)IDD_WINPT_KEYEDIT_OWNERTRUST, |
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dlg, keyedit_ownertrust_dlg_proc, |
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(LPARAM)prop->key, _("Change Ownertrust"), |
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IDS_WINPT_KEYEDIT_OWNERTRUST); |
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if (rc == FALSE) /* Cancel */ |
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return TRUE; |
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|
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inf = ownertrust_to_string (prop->key->callback.new_val, |
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prop->key->key_pair); |
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SetDlgItemText (dlg, IDC_KEYPROPS_OT, inf); |
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msg_box (dlg, _("Ownertrust successfully changed."), |
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_("GnuPG Status"), MB_OK); |
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prop->key->update = 1; |
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return TRUE; |
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|
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case IDC_KEYPROPS_CHANGE_PWD: |
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keyedit_change_passwd (prop->key, dlg); |
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return TRUE; |
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|
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case IDC_KEYPROPS_REVOKERS: |
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prop->key->update = dialog_box_param (glob_hinst, |
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(LPCTSTR)IDD_WINPT_KEYREVOKERS, dlg, |
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key_revokers_dlg_proc, |
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(LPARAM)prop->key, |
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_("Key Revokers"), |
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IDS_WINPT_KEY_REVOKERS); |
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UpdateWindow (dlg); |
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break; |
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} |
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} |
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|
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return FALSE; |
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} |
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