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/* wptClipVerifyDlg.cpp - WinPT verify dialog |
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* Copyright (C) 2001-2006 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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* You should have received a copy of the GNU General Public License |
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* along with WinPT; if not, write to the Free Software Foundation, |
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
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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 <time.h> |
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|
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#include "resource.h" |
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#include "wptGPG.h" |
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#include "wptTypes.h" |
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#include "wptCommonCtl.h" |
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#include "wptKeylist.h" |
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#include "wptW32API.h" |
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#include "wptKeyserver.h" |
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#include "wptNLS.h" |
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#include "wptContext.h" /* for passwd_s */ |
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#include "wptDlgs.h" |
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#include "wptErrors.h" |
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#include "wptVersion.h" |
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|
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/* XXX use @out directly and do not use gpg_data_extract to store the plain text. */ |
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|
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|
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/* Verify data from the clipboard. If @is_detached is set, a detached |
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signature is assumed with the data the signature was calculated over |
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in @det_data. The context is returned in @r_ctx and the signature |
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in @r_sig. |
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Return value: 0 on success. */ |
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static gpgme_error_t |
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gpg_clip_verify (int is_detached, |
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const char *det_data, size_t det_len, |
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gpgme_ctx_t *r_ctx, |
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gpgme_signature_t *r_sig) |
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{ |
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gpgme_error_t err; |
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gpgme_ctx_t ctx; |
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gpgme_data_t dat = NULL; |
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gpgme_data_t out = NULL; |
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gpgme_data_t sig = NULL; |
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gpgme_verify_result_t res; |
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|
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if (is_detached) { |
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err = gpgme_data_new_from_mem (&dat, det_data, det_len, 1); |
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if (err) |
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return err; |
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} |
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|
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err = gpgme_new (&ctx); |
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if (err) |
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goto leave; |
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err = gpg_data_new_from_clipboard (&sig, 0); |
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if (err) |
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goto leave; |
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err = gpgme_data_new (&out); |
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if (err) |
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goto leave; |
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err = gpgme_op_verify (ctx, sig, dat, out); |
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if (err) |
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goto leave; |
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res = gpgme_op_verify_result (ctx); |
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if (!res || !res->signatures) { |
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err = gpg_error (GPG_ERR_NO_DATA); |
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goto leave; |
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} |
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*r_sig = res->signatures; |
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*r_ctx = ctx; |
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|
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leave: |
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if (err) { |
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gpgme_release (ctx); |
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*r_ctx = NULL; |
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} |
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if (dat) |
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gpgme_data_release (dat); |
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if (out) |
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gpgme_data_release (out); |
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gpgme_data_release (sig); |
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return err; |
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} |
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|
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|
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/* Display the policy URL and/or the notation data of a signature. */ |
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static void |
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show_notation_data (HWND dlg, gpgme_ctx_t ctx) |
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{ |
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gpgme_sig_notation_t nota; |
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gpgme_sig_notation_t n; |
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gpgme_verify_result_t res; |
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size_t len=0; |
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char *p; |
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|
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res = gpgme_op_verify_result (ctx); |
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if (!res || !res->signatures || !res->signatures->notations) |
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return; |
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nota = res->signatures->notations; |
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for (n=nota; n; n = n->next) { |
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if (n->name) |
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len += strlen (n->name) + 1 + 2; |
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else |
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len += strlen ("policy URL") + 1 + 2; |
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len += strlen (n->value) + 1 + 2; |
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len += 6; |
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} |
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p = (char *)calloc (1, len+64); |
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if (!p) |
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BUG (NULL); |
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strcpy (p, "Notation data:\n"); |
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for (n=nota; n; n = n->next) { |
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if (!n->name) |
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strcat (p, "policy url: "); |
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else { |
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strcat (p, n->name); |
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strcat (p, " : "); |
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} |
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strcat (p, "\""); |
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strcat (p, n->value); |
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strcat (p, "\"\n"); |
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} |
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|
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msg_box (dlg, p, _("Signature Information"), MB_INFO); |
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safe_free (p); |
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} |
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|
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|
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/* Dialog procedure for the clipboard verification. */ |
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BOOL CALLBACK |
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clip_verify_dlg_proc (HWND dlg, UINT msg, WPARAM wparam, LPARAM lparam) |
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{ |
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static verlist_ctrl_t vlv = NULL; |
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static gpgme_ctx_t c = NULL; |
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text_input_s *ctx; |
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gpgme_error_t err; |
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gpgme_signature_t sig = NULL, s; |
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gpg_keycache_t kc = NULL; |
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const char *det_data=NULL; |
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int rc = 0, det_len=0; |
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|
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switch (msg) { |
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case WM_INITDIALOG: |
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SetWindowText (dlg, _("Verify")); |
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SetDlgItemText (dlg, IDC_VERIFY_SAVE, _("&Save")); |
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kc = keycache_get_ctx (KEYCACHE_PUB); |
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ctx = (text_input_s *)lparam; |
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if (ctx) { |
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det_data = ctx->data; |
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det_len = ctx->length; |
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} |
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err = gpg_clip_verify (ctx && ctx->length > 0, |
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det_data, det_len, &c, &sig); |
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if (err) { |
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msg_box (dlg, gpgme_strerror (err), _("Verify"), MB_ERR); |
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EndDialog (dlg, FALSE); |
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return FALSE; |
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} |
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|
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if (gpgme_err_code (sig->status) == GPG_ERR_NO_PUBKEY) { |
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gpgme_verify_result_t res; |
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|
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if (fetch_key_from_keyserver (dlg, sig)) { |
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EndDialog (dlg, FALSE); |
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return TRUE; |
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} |
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/* We need to call GPG again to get the real sig status. */ |
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err = gpg_clip_verify (ctx && ctx->length > 0, |
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det_data, det_len, &c, &sig); |
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if (err) { |
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msg_box (dlg, gpgme_strerror (err), _("Verify"), MB_ERR); |
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EndDialog (dlg, FALSE); |
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return TRUE; |
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} |
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/* Refresh the pointer because a new GPG instance has been |
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created for the new verify operation. */ |
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res = gpgme_op_verify_result (c); |
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if (!res || res->signatures == NULL) |
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BUG (0); |
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sig = res->signatures; |
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|
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} |
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|
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if (gpgme_err_code (sig->status) == GPG_ERR_BAD_SIGNATURE && |
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!sig->timestamp) |
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; |
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else if (!sig->timestamp) { |
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msg_box (dlg, _("Invalid signature state."), _("Verify"), MB_ERR); |
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EndDialog (dlg, FALSE); |
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return FALSE; |
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} |
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verlist_build (&vlv, GetDlgItem (dlg, IDC_VERIFY_SIGLIST), 0); |
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verlist_set_info_control (vlv, GetDlgItem (dlg, IDC_VERIFY_INFO)); |
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|
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for (s = sig; s; s = s->next) { |
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rc = verlist_add_sig (vlv, s); |
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if (rc) { |
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msg_box (dlg, _("Error while adding signature information."), |
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_("Verify"), MB_ERR); |
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break; |
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} |
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} |
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|
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if (!sig->notations) |
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ShowWindow (GetDlgItem (dlg, IDC_VERIFY_SIGNOT), SW_HIDE); |
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SetForegroundWindow (dlg); |
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return TRUE; |
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|
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case WM_DESTROY: |
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if (c != NULL) { |
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gpgme_release (c); |
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c = NULL; |
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} |
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if (vlv != NULL) { |
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verlist_delete (vlv); |
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vlv = NULL; |
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} |
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return FALSE; |
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|
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case WM_COMMAND: |
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switch (LOWORD (wparam )) { |
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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 IDOK: |
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EndDialog (dlg, TRUE); |
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return TRUE; |
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|
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case IDC_VERIFY_SIGNOT: |
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show_notation_data (dlg, c); |
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return TRUE; |
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|
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case IDC_VERIFY_SAVE: |
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dialog_box_param (glob_hinst, (LPCTSTR)IDD_WINPT_FILE_SAVE, dlg, |
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file_save_dlg_proc, 0, _("Save Plaintext"), |
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IDS_WINPT_FILE_SAVE); |
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break; |
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} |
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break; |
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} |
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|
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return FALSE; |
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} |
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