forked from geany/geany-plugins
/
verify_aux.c
204 lines (190 loc) · 7.7 KB
/
verify_aux.c
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// verify_aux.c
//
// Copyright 2011 Hans Alves <alves.h88@gmail.com>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
// MA 02110-1301, USA.
#include "geanypg.h"
void geanypg_get_keys_with_fp(encrypt_data * ed, char * buffer)
{
unsigned long idx, found = 0;
char empty_string = '\0';
for (idx = 0; idx < ed->nkeys && ! found; ++idx)
{
gpgme_subkey_t sub = ed->key_array[idx]->subkeys;
while (sub && !found)
{
if (sub->fpr && !strncmp(sub->fpr, buffer, 40))
{
char * name = (ed->key_array[idx]->uids && ed->key_array[idx]->uids->name)
?
ed->key_array[idx]->uids->name
:
&empty_string;
char * email = (ed->key_array[idx]->uids && ed->key_array[idx]->uids->email)
?
ed->key_array[idx]->uids->email
:
&empty_string;
if (strlen(name) + strlen(email) < 500)
sprintf(buffer, "%s <%s>", name, email);
else
{
char tmp[62];
strncpy(tmp, buffer, 41);
sprintf(buffer, "%s %s", _("a key with fingerprint"), tmp);
}
found = 1;
}
sub = sub->next;
}
}
}
static const char * geanypg_validity(gpgme_validity_t validity)
{
switch (validity)
{
case GPGME_VALIDITY_UNKNOWN: return _("unknown");
case GPGME_VALIDITY_UNDEFINED:return _("undefined");
case GPGME_VALIDITY_NEVER: return _("never");
case GPGME_VALIDITY_MARGINAL: return _("marginal");
case GPGME_VALIDITY_FULL: return _("full");
case GPGME_VALIDITY_ULTIMATE: return _("ultimate");
default : return _("[bad validity value]");
}
return _("[bad validity value]");
}
static char * geanypg_summary(gpgme_sigsum_t summary, char * buffer)
{ // buffer should be more than 105 bytes long
if (summary & GPGME_SIGSUM_VALID) strcat(buffer, _(" valid"));
if (summary & GPGME_SIGSUM_GREEN) strcat(buffer, _(" green"));
if (summary & GPGME_SIGSUM_RED) strcat(buffer, _(" red"));
if (summary & GPGME_SIGSUM_KEY_REVOKED) strcat(buffer, _(" revoked"));
if (summary & GPGME_SIGSUM_KEY_EXPIRED) strcat(buffer, _(" key-expired"));
if (summary & GPGME_SIGSUM_SIG_EXPIRED) strcat(buffer, _(" sig-expired"));
if (summary & GPGME_SIGSUM_KEY_MISSING) strcat(buffer, _(" key-missing"));
if (summary & GPGME_SIGSUM_CRL_MISSING) strcat(buffer, _(" crl-missing"));
if (summary & GPGME_SIGSUM_CRL_TOO_OLD) strcat(buffer, _(" crl-too-old"));
if (summary & GPGME_SIGSUM_BAD_POLICY) strcat(buffer, _(" bad-policy"));
if (summary & GPGME_SIGSUM_SYS_ERROR) strcat(buffer, _(" sys-error"));
return buffer;
}
static char * geanypg_result(gpgme_signature_t sig)
{
char * format =
_("status ....: %s\n"
"summary ...:%s\n"
"fingerprint: %s\n"
"created ...: %s"
"expires ...: %s"
"validity ..: %s\n"
"val.reason : %s\n"
"pubkey algo: %s\n"
"digest algo: %s\n"
"pka address: %s\n"
"pka trust .: %s\n"
"other flags:%s%s\n"
"notations .: %s\n");
char * buffer;
char summary[128];
const char * pubkey = gpgme_pubkey_algo_name(sig->pubkey_algo);
const char * hash = gpgme_hash_algo_name(sig->hash_algo);
char created[64];
char expires[64];
size_t buffer_size;
if (sig->timestamp)
strncpy(created, ctime((time_t*)&sig->timestamp), 64);
else
strcpy(created, _("Unknown\n"));
if (sig->exp_timestamp)
strncpy(expires, ctime((time_t*)&sig->exp_timestamp), 64);
else
strcpy(expires, _("Unknown\n"));
buffer_size = strlen(format) +
strlen(gpgme_strerror(sig->status)) +
strlen(geanypg_summary(sig->summary, summary)) +
strlen(sig->fpr ? sig->fpr : _("[None]")) +
strlen(created) +
strlen(expires) +
strlen(geanypg_validity(sig->validity)) +
strlen(gpgme_strerror(sig->status)) +
strlen(pubkey ? pubkey : _("Unknown")) +
strlen(hash ? hash : _("Unknown")) +
strlen(sig->pka_address ? sig->pka_address : _("[None]")) +
strlen(sig->pka_trust == 0 ? _("n/a") : sig->pka_trust == 1 ? _("bad") : sig->pka_trust == 2 ? _("okay"): _("RFU")) +
strlen(sig->wrong_key_usage ? _(" wrong-key-usage") : "") +
strlen(sig->chain_model ? _(" chain-model") : "") +
strlen(sig->notations ? _("yes") : _("no")) + 1; // and a trailing \0
buffer = (char *)calloc(buffer_size, 1);
memset(summary, 0, 128);
sprintf(buffer, format,
gpgme_strerror(sig->status),
geanypg_summary(sig->summary, summary),
sig->fpr ? sig->fpr : _("[None]"),
created,
expires,
geanypg_validity(sig->validity),
gpgme_strerror(sig->status),
pubkey ? pubkey : _("Unknown"),
hash ? hash : _("Unknown"),
sig->pka_address ? sig->pka_address : _("[None]"),
sig->pka_trust == 0 ? _("n/a") : sig->pka_trust == 1 ? _("bad") : sig->pka_trust == 2 ? _("okay"): _("RFU"),
sig->wrong_key_usage ? _(" wrong-key-usage") : "", sig->chain_model ? _(" chain-model") : "",
sig->notations ? _("yes") : _("no"));
return buffer;
}
void geanypg_check_sig(encrypt_data * ed, gpgme_signature_t sig)
{
GtkWidget * dialog;
gpgme_sigsum_t summary;
char buffer[512];
strncpy(buffer, sig->fpr, 40);
buffer[40] = 0;
geanypg_get_keys_with_fp(ed, buffer);
summary = sig->summary;
char * result = geanypg_result(sig);
dialog = gtk_message_dialog_new_with_markup(GTK_WINDOW(geany->main_widgets->window),
GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_INFO,
GTK_BUTTONS_OK,
"%s %s\n<tt>%s</tt>",
_("Found a signature from"),
buffer,
result);
gtk_window_set_title(GTK_WINDOW(dialog), _("Signature"));
gtk_dialog_run(GTK_DIALOG(dialog));
free(result);
gtk_widget_destroy(dialog);
}
void geanypg_handle_signatures(encrypt_data * ed, int need_error)
{
int verified = 0;
gpgme_verify_result_t vres = gpgme_op_verify_result(ed->ctx);
if (vres)
{
gpgme_signature_t sig = vres->signatures;
while (sig)
{
geanypg_check_sig(ed, sig);
sig = sig->next;
verified = 1;
}
}
if (!verified && need_error)
{
fprintf(stderr, "GeanyPG: %s\n", _("Could not find verification results"));
dialogs_show_msgbox(GTK_MESSAGE_ERROR, _("Error, could not find verification results"));
}
}