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gpafileverifyop.c
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/* gpafileverifyop.c - The GpaOperation object.
* Copyright (C) 2003, Miguel Coca.
*
* This file is part of GPA
*
* GPA 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.
*
* GPA 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include <glib.h>
#ifdef G_OS_UNIX
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#else
#include <io.h>
#endif
#include "gpa.h"
#include "gtktools.h"
#include "gpgmetools.h"
#include "gpafileverifyop.h"
#include "verifydlg.h"
/* Internal functions */
static gboolean gpa_file_verify_operation_idle_cb (gpointer data);
static void gpa_file_verify_operation_done_error_cb (GpaContext *context,
gpg_error_t err,
GpaFileVerifyOperation *op);
static void gpa_file_verify_operation_done_cb (GpaContext *context,
gpg_error_t err,
GpaFileVerifyOperation *op);
static void gpa_file_verify_operation_response_cb (GtkDialog *dialog,
gint response,
gpointer user_data);
/* GObject */
static GObjectClass *parent_class = NULL;
static void
gpa_file_verify_operation_finalize (GObject *object)
{
GpaFileVerifyOperation *op = GPA_FILE_VERIFY_OPERATION (object);
gtk_widget_destroy (op->dialog);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gpa_file_verify_operation_init (GpaFileVerifyOperation *op)
{
op->sig_fd = -1;
op->signed_text_fd = -1;
op->sig = NULL;
op->signed_text = NULL;
op->signed_file = NULL;
op->signature_file = NULL;
}
static GObject*
gpa_file_verify_operation_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_properties)
{
GObject *object;
GpaFileVerifyOperation *op;
/* Invoke parent's constructor */
object = parent_class->constructor (type,
n_construct_properties,
construct_properties);
op = GPA_FILE_VERIFY_OPERATION (object);
/* Initialize */
/* Start with the first file after going back into the main loop */
g_idle_add (gpa_file_verify_operation_idle_cb, op);
/* Connect to the "done" signal */
g_signal_connect (G_OBJECT (GPA_OPERATION (op)->context), "done",
G_CALLBACK (gpa_file_verify_operation_done_error_cb), op);
g_signal_connect (G_OBJECT (GPA_OPERATION (op)->context), "done",
G_CALLBACK (gpa_file_verify_operation_done_cb), op);
/* Give a title to the progress dialog */
gtk_window_set_title (GTK_WINDOW (GPA_FILE_OPERATION (op)->progress_dialog),
_("Verifying..."));
/* Create the verification dialog */
op->dialog = gpa_file_verify_dialog_new (GPA_OPERATION (op)->window);
g_signal_connect (G_OBJECT (op->dialog), "response",
G_CALLBACK (gpa_file_verify_operation_response_cb), op);
return object;
}
static void
gpa_file_verify_operation_class_init (GpaFileVerifyOperationClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->constructor = gpa_file_verify_operation_constructor;
object_class->finalize = gpa_file_verify_operation_finalize;
}
GType
gpa_file_verify_operation_get_type (void)
{
static GType file_verify_operation_type = 0;
if (!file_verify_operation_type)
{
static const GTypeInfo file_verify_operation_info =
{
sizeof (GpaFileVerifyOperationClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gpa_file_verify_operation_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GpaFileVerifyOperation),
0, /* n_preallocs */
(GInstanceInitFunc) gpa_file_verify_operation_init,
};
file_verify_operation_type = g_type_register_static
(GPA_FILE_OPERATION_TYPE, "GpaFileVerifyOperation",
&file_verify_operation_info, 0);
}
return file_verify_operation_type;
}
/* API */
GpaFileVerifyOperation*
gpa_file_verify_operation_new (GtkWidget *window, GList *files)
{
GpaFileVerifyOperation *op;
op = g_object_new (GPA_FILE_VERIFY_OPERATION_TYPE,
"window", window,
"input_files", files,
NULL);
return op;
}
/* Internal */
static gboolean
ask_use_detached_sig (const gchar *file, const gchar *sig, GtkWidget *parent)
{
GtkWidget *dialog = gtk_message_dialog_new
(GTK_WINDOW(parent), GTK_DIALOG_MODAL,
GTK_MESSAGE_WARNING, GTK_BUTTONS_NONE,
_("GPA found a file that could be a signature of %s. "
"Would you like to verify it instead?\n\n"
"The file found is: %s"), file, sig);
gboolean result;
gtk_dialog_add_buttons (GTK_DIALOG (dialog),
_("_Yes"), GTK_RESPONSE_YES,
_("_No"), GTK_RESPONSE_NO, NULL);
result = (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_YES);
gtk_widget_destroy (dialog);
return result;
}
/* Check whether the file is a detached signature and deduce the name of the
* original file. Since we only have access to the filename, this is not
* very solid.
*/
static gboolean
is_detached_sig (const gchar *filename, gchar **signature_file,
gchar **signed_file, GtkWidget *window)
{
const gchar *sig_extension[] = {".sig", ".sign"};
int i;
gchar *extension;
/* First, check whether this file is a dettached signature */
*signed_file = g_strdup (filename);
extension = g_strrstr (*signed_file, ".");
if (extension &&
(g_str_equal (extension, ".sig") ||
g_str_equal (extension, ".sign")))
{
*extension++ = '\0';
*signature_file = g_strdup (filename);
return TRUE;
}
/* Now, check whether a dettached signature exists for this file */
else
{
g_free (*signed_file);
*signed_file = NULL;
for (i = 0; i < sizeof(sig_extension)/sizeof(sig_extension[0]); i++)
{
gchar *sig = g_strconcat (filename, sig_extension[i], NULL);
if (g_file_test (sig, G_FILE_TEST_EXISTS) &&
ask_use_detached_sig (filename, sig, window))
{
*signed_file = g_strdup (filename);
*signature_file = sig;
return TRUE;
}
else
{
g_free (sig);
}
}
return FALSE;
}
}
static gboolean
gpa_file_verify_operation_start (GpaFileVerifyOperation *op,
const gchar *sig_filename)
{
gpg_error_t err;
if (is_detached_sig (sig_filename, &op->signature_file, &op->signed_file,
GPA_OPERATION (op)->window))
{
/* Allocate data objects for a detached signature */
op->sig_fd = gpa_open_input (op->signature_file, &op->sig,
GPA_OPERATION (op)->window);
if (op->sig_fd == -1)
{
return FALSE;
}
op->signed_text_fd = gpa_open_input (op->signed_file, &op->signed_text,
GPA_OPERATION (op)->window);
if (op->signed_text_fd == -1)
{
gpgme_data_release (op->sig);
close (op->sig_fd);
return FALSE;
}
op->plain = NULL;
}
else
{
/* Allocate data object for non-detached signatures */
op->sig_fd = gpa_open_input (sig_filename, &op->sig,
GPA_OPERATION (op)->window);
if (op->sig_fd == -1)
{
return FALSE;
}
if (gpg_err_code (gpgme_data_new (&op->plain)) != GPG_ERR_NO_ERROR)
{
gpgme_data_release (op->sig);
close (op->sig_fd);
return FALSE;
}
op->signed_text_fd = -1;
op->signed_text = NULL;
}
/* Start the operation */
err = gpgme_op_verify_start (GPA_OPERATION (op)->context->ctx, op->sig,
op->signed_text, op->plain);
if (gpg_err_code (err) != GPG_ERR_NO_ERROR)
{
gpa_gpgme_warning (err);
return FALSE;
}
/* Show and update the progress dialog */
gtk_widget_show_all (GPA_FILE_OPERATION (op)->progress_dialog);
gpa_progress_dialog_set_label (GPA_PROGRESS_DIALOG
(GPA_FILE_OPERATION (op)->progress_dialog),
sig_filename);
return TRUE;
}
static void
gpa_file_verify_operation_next (GpaFileVerifyOperation *op)
{
if (!GPA_FILE_OPERATION (op)->current ||
!gpa_file_verify_operation_start (op, GPA_FILE_OPERATION (op)
->current->data))
{
/* All files have been verified: show the results dialog */
gtk_widget_show_all (op->dialog);
}
}
static void
gpa_file_verify_operation_done_cb (GpaContext *context,
gpg_error_t err,
GpaFileVerifyOperation *op)
{
/* Do clean up on the operation */
if (op->plain)
{
gpgme_data_release (op->plain);
}
if (op->signed_text)
{
gpgme_data_release (op->signed_text);
close (op->signed_text_fd);
}
gpgme_data_release (op->sig);
close (op->sig_fd);
gtk_widget_hide (GPA_FILE_OPERATION (op)->progress_dialog);
/* Check for error */
if (gpg_err_code (err) != GPG_ERR_NO_ERROR)
{
/* Abort further verifications */
}
else
{
gpgme_verify_result_t result;
result = gpgme_op_verify_result (GPA_OPERATION (op)->context->ctx);
/* Add the file to the result dialog */
gpa_file_verify_dialog_add_file (GPA_FILE_VERIFY_DIALOG (op->dialog),
GPA_FILE_OPERATION (op)->current->data,
op->signed_file, op->signature_file,
result->signatures);
/* If this was a dettached sig, reset the signed file */
if (op->signed_file)
{
g_free (op->signed_file);
op->signed_file = NULL;
g_free (op->signature_file);
op->signature_file = NULL;
}
/* Go to the next file in the list and verify it */
GPA_FILE_OPERATION (op)->current = g_list_next
(GPA_FILE_OPERATION (op)->current);
gpa_file_verify_operation_next (op);
}
}
static gboolean
gpa_file_verify_operation_idle_cb (gpointer data)
{
GpaFileVerifyOperation *op = data;
gpa_file_verify_operation_next (op);
return FALSE;
}
static void
gpa_file_verify_operation_response_cb (GtkDialog *dialog,
gint response,
gpointer user_data)
{
GpaFileVerifyOperation *op = GPA_FILE_VERIFY_OPERATION (user_data);
g_signal_emit_by_name (GPA_OPERATION (op), "completed");
}
static void
gpa_file_verify_operation_done_error_cb (GpaContext *context, gpg_error_t err,
GpaFileVerifyOperation *op)
{
gchar *message;
switch (gpg_err_code (err))
{
case GPG_ERR_NO_ERROR:
case GPG_ERR_CANCELED:
/* Ignore these */
break;
case GPG_ERR_NO_DATA:
message = g_strdup_printf (_("The file \"%s\" contained no OpenPGP "
"data."),
gpa_file_operation_current_file
(GPA_FILE_OPERATION(op)));
gpa_window_error (message, GPA_OPERATION (op)->window);
g_free (message);
break;
case GPG_ERR_BAD_PASSPHRASE:
gpa_window_error (_("Wrong passphrase!"), GPA_OPERATION (op)->window);
break;
default:
gpa_gpgme_warning (err);
break;
}
}

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Expires
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