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/*
* e-mail-parser-application-xpkcs7mime.c
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) version 3.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with the program; if not, see <http://www.gnu.org/licenses/>
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "e-mail-format-extensions.h"
#include <glib-object.h>
#include <glib/gi18n-lib.h>
#include <em-format/e-mail-parser-extension.h>
#include <em-format/e-mail-parser.h>
#include <em-format/e-mail-part-utils.h>
#include <e-util/e-util.h>
#include <camel/camel.h>
#include <string.h>
typedef struct _EMailParserApplicationSMIME {
GObject parent;
} EMailParserApplicationSMIME;
typedef struct _EMailParserAppplicationSMIMEClass {
GObjectClass parent_class;
} EMailParserApplicationSMIMEClass;
static void e_mail_parser_parser_extension_interface_init (EMailParserExtensionInterface *iface);
static void e_mail_parser_mail_extension_interface_init (EMailExtensionInterface *iface);
G_DEFINE_TYPE_EXTENDED (
EMailParserApplicationSMIME,
e_mail_parser_application_smime,
G_TYPE_OBJECT,
0,
G_IMPLEMENT_INTERFACE (
E_TYPE_MAIL_EXTENSION,
e_mail_parser_mail_extension_interface_init)
G_IMPLEMENT_INTERFACE (
E_TYPE_MAIL_PARSER_EXTENSION,
e_mail_parser_parser_extension_interface_init));
static const gchar * parser_mime_types[] = { "application/xpkcs7mime",
"application/x-pkcs7-mime",
"application/pkcs7-mime",
"application/pkcs7-signature",
"application/xpkcs7-signature",
"application/x-pkcs7-signature",
NULL };
static GSList *
empe_app_smime_parse (EMailParserExtension *extension,
EMailParser *parser,
CamelMimePart *part,
GString *part_id,
GCancellable *cancellable)
{
CamelCipherContext *context;
CamelMimePart *opart;
CamelCipherValidity *valid;
GError *local_error = NULL;
GSList *parts, *iter;
CamelContentType *ct;
if (g_cancellable_is_cancelled (cancellable))
return NULL;
ct = camel_mime_part_get_content_type (part);
if (camel_content_type_is (ct, "application", "pkcs7-signature") ||
camel_content_type_is (ct, "application", "xpkcs7-signature") ||
camel_content_type_is (ct, "application", "x-pkcs7-signature")) {
return g_slist_alloc ();
}
context = camel_smime_context_new (e_mail_parser_get_session (parser));
opart = camel_mime_part_new ();
valid = camel_cipher_context_decrypt_sync (
context, part, opart,
cancellable, &local_error);
e_mail_part_preserve_charset_in_content_type (part, opart);
if (local_error != NULL) {
parts = e_mail_parser_error (
parser, cancellable,
_("Could not parse S/MIME message: %s"),
local_error->message);
g_error_free (local_error);
} else {
gint len = part_id->len;
g_string_append (part_id, ".encrypted");
parts = e_mail_parser_parse_part (
parser, opart, part_id, cancellable);
g_string_truncate (part_id, len);
/* Update validity flags of all the involved subp-arts */
for (iter = parts; iter; iter = iter->next) {
EMailPart *mail_part = iter->data;
if (!mail_part)
continue;
e_mail_part_update_validity (
mail_part, valid,
E_MAIL_PART_VALIDITY_ENCRYPTED |
E_MAIL_PART_VALIDITY_SMIME);
}
/* Add a widget with details about the encryption, but only when
* the encrypted isn't itself secured, in that case it has created
* the button itself */
if (!e_mail_part_is_secured (opart)) {
GSList *button;
EMailPart *mail_part;
g_string_append (part_id, ".encrypted.button");
button = e_mail_parser_parse_part_as (
parser, part, part_id,
"application/vnd.evolution.widget.secure-button",
cancellable);
if (button && button->data) {
mail_part = button->data;
e_mail_part_update_validity (
mail_part, valid,
E_MAIL_PART_VALIDITY_ENCRYPTED |
E_MAIL_PART_VALIDITY_SMIME);
}
parts = g_slist_concat (parts, button);
g_string_truncate (part_id, len);
}
camel_cipher_validity_free (valid);
}
g_object_unref (opart);
g_object_unref (context);
return parts;
}
static guint32
empe_app_smime_get_flags (EMailParserExtension *extension)
{
return E_MAIL_PARSER_EXTENSION_INLINE;
}
static const gchar **
empe_application_smime_mime_types (EMailExtension *extension)
{
return parser_mime_types;
}
static void
e_mail_parser_application_smime_class_init (EMailParserApplicationSMIMEClass *class)
{
}
static void
e_mail_parser_parser_extension_interface_init (EMailParserExtensionInterface *interface)
{
interface->parse = empe_app_smime_parse;
interface->get_flags = empe_app_smime_get_flags;
}
static void
e_mail_parser_mail_extension_interface_init (EMailExtensionInterface *interface)
{
interface->mime_types = empe_application_smime_mime_types;
}
static void
e_mail_parser_application_smime_init (EMailParserApplicationSMIME *parser)
{
}
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