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/*
* e-mail-parser-inlinepgp-encrypted.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.
*
* 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 Lesser General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <glib/gi18n-lib.h>
#include <e-util/e-util.h>
#include "e-mail-parser-extension.h"
#include "e-mail-part-utils.h"
typedef EMailParserExtension EMailParserInlinePGPEncrypted;
typedef EMailParserExtensionClass EMailParserInlinePGPEncryptedClass;
GType e_mail_parser_inline_pgp_encrypted_get_type (void);
G_DEFINE_TYPE (
EMailParserInlinePGPEncrypted,
e_mail_parser_inline_pgp_encrypted,
E_TYPE_MAIL_PARSER_EXTENSION)
static const gchar *parser_mime_types[] = {
"application/x-inlinepgp-encrypted",
NULL
};
static gboolean
empe_inlinepgp_encrypted_parse (EMailParserExtension *extension,
EMailParser *parser,
CamelMimePart *part,
GString *part_id,
GCancellable *cancellable,
GQueue *out_mail_parts)
{
CamelCipherContext *cipher;
CamelCipherValidity *valid;
CamelMimePart *opart;
CamelDataWrapper *dw;
gchar *mime_type;
gint len;
GQueue work_queue = G_QUEUE_INIT;
GList *head, *link;
GError *local_error = NULL;
if (g_cancellable_is_cancelled (cancellable) ||
/* avoid recursion */
(part_id->str && part_id->len > 20 && g_str_has_suffix (part_id->str, ".inlinepgp_encrypted")))
return FALSE;
cipher = camel_gpg_context_new (e_mail_parser_get_session (parser));
opart = camel_mime_part_new ();
/* Decrypt the message */
valid = camel_cipher_context_decrypt_sync (
cipher, part, opart, cancellable, &local_error);
if (local_error != NULL) {
e_mail_parser_error (
parser, out_mail_parts,
_("Could not parse PGP message: %s"),
local_error->message);
g_error_free (local_error);
e_mail_parser_parse_part_as (
parser,
part, part_id,
"application/vnd.evolution.source",
cancellable, out_mail_parts);
g_object_unref (cipher);
g_object_unref (opart);
return TRUE;
}
dw = camel_medium_get_content ((CamelMedium *) opart);
mime_type = camel_data_wrapper_get_mime_type (dw);
/* this ensures to show the 'opart' as inlined, if possible */
if (mime_type && g_ascii_strcasecmp (mime_type, "application/octet-stream") == 0) {
const gchar *snoop;
snoop = e_mail_part_snoop_type (opart);
if (snoop != NULL) {
camel_data_wrapper_set_mime_type (dw, snoop);
/* Set the MIME type on the 'opart' itself as well.
* If it's "text/plain", then we want the TextPlain
* parser extension to treat it as "text/plain" and
* NOT wrap it as an attachment. */
camel_data_wrapper_set_mime_type (
CAMEL_DATA_WRAPPER (opart), snoop);
}
}
e_mail_part_preserve_charset_in_content_type (part, opart);
g_free (mime_type);
/* Pass it off to the real formatter */
len = part_id->len;
g_string_append (part_id, ".inlinepgp_encrypted");
e_mail_parser_parse_part_as (
parser, opart, part_id,
camel_data_wrapper_get_mime_type (dw),
cancellable, &work_queue);
g_string_truncate (part_id, len);
head = g_queue_peek_head_link (&work_queue);
for (link = head; link != NULL; link = g_list_next (link)) {
EMailPart *mail_part = link->data;
e_mail_part_update_validity (
mail_part, valid,
E_MAIL_PART_VALIDITY_ENCRYPTED |
E_MAIL_PART_VALIDITY_PGP);
}
e_queue_transfer (&work_queue, out_mail_parts);
/* 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)) {
EMailPart *mail_part;
g_string_append (part_id, ".inlinepgp_encrypted.button");
e_mail_parser_parse_part_as (
parser, part, part_id,
"application/vnd.evolution.widget.secure-button",
cancellable, &work_queue);
mail_part = g_queue_peek_head (&work_queue);
if (mail_part != NULL)
e_mail_part_update_validity (
mail_part, valid,
E_MAIL_PART_VALIDITY_ENCRYPTED |
E_MAIL_PART_VALIDITY_PGP);
e_queue_transfer (&work_queue, out_mail_parts);
g_string_truncate (part_id, len);
}
/* Clean Up */
camel_cipher_validity_free (valid);
g_object_unref (opart);
g_object_unref (cipher);
return TRUE;
}
static void
e_mail_parser_inline_pgp_encrypted_class_init (EMailParserExtensionClass *class)
{
class->mime_types = parser_mime_types;
class->priority = G_PRIORITY_LOW;
class->parse = empe_inlinepgp_encrypted_parse;
}
static void
e_mail_parser_inline_pgp_encrypted_init (EMailParserExtension *extension)
{
}
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