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authorDan Vrátil <dvratil@redhat.com>2012-06-06 21:27:19 +0800
committerDan Vrátil <dvratil@redhat.com>2012-06-06 21:27:19 +0800
commit5b8340563c271fb684a88c6e5bb6dd3bfb629058 (patch)
treec1c7d606fb4ce9fd2fe459a9226bfb9125423991 /em-format/e-mail-parser-inlinepgp-encrypted.c
parent26a4f24188fd89dbabaff192bec9c54af8fe5a80 (diff)
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Mail formatter rewrite
All mail-parsing and formatting code has been moved to em-format. Parsing is handeled by EMailParser class, formatting by EMailFormatter. Both classes have registry which hold extensions - simple classes that do actual parsing and formatting. Each supported mime-type has it's own parser and formatter extension class.
Diffstat (limited to 'em-format/e-mail-parser-inlinepgp-encrypted.c')
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diff --git a/em-format/e-mail-parser-inlinepgp-encrypted.c b/em-format/e-mail-parser-inlinepgp-encrypted.c
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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; 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 <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 <glib/gi18n-lib.h>
+#include <camel/camel.h>
+
+#include <string.h>
+
+typedef struct _EMailParserInlinePGPEncrypted {
+ GObject parent;
+} EMailParserInlinePGPEncrypted;
+
+typedef struct _EMailParserInlinePGPEncryptedClass {
+ GObjectClass parent_class;
+} EMailParserInlinePGPEncryptedClass;
+
+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 (
+ EMailParserInlinePGPEncrypted,
+ e_mail_parser_inline_pgp_encrypted,
+ 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/x-inlinepgp-encrypted",
+ NULL };
+
+static GSList *
+empe_inlinepgp_encrypted_parse (EMailParserExtension *extension,
+ EMailParser *parser,
+ CamelMimePart *part,
+ GString *part_id,
+ GCancellable *cancellable)
+{
+ CamelCipherContext *cipher;
+ CamelCipherValidity *valid;
+ CamelMimePart *opart;
+ CamelDataWrapper *dw;
+ gchar *mime_type;
+ gint len;
+ GError *local_error = NULL;
+ GSList *parts, *iter;
+
+ if (g_cancellable_is_cancelled (cancellable))
+ return NULL;
+
+ 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 (!valid) {
+ parts = e_mail_parser_error (
+ parser, cancellable,
+ _("Could not parse PGP message: %s"),
+ local_error->message ?
+ local_error->message :
+ _("Unknown error"));
+ g_clear_error (&local_error);
+
+ parts = g_slist_concat (parts,
+ e_mail_parser_parse_part_as (parser,
+ part, part_id,
+ "application/vnd.evolution.source",
+ cancellable));
+
+ g_object_unref (cipher);
+ g_object_unref (opart);
+ return parts;
+ }
+
+ 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 = e_mail_part_snoop_type (opart);
+
+ if (snoop)
+ camel_data_wrapper_set_mime_type (dw, 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");
+
+ parts = e_mail_parser_parse_part_as (
+ parser, opart, part_id,
+ camel_data_wrapper_get_mime_type (dw), cancellable);
+
+ g_string_truncate (part_id, len);
+
+ for (iter = parts; iter; iter = iter->next) {
+ EMailPart *mail_part;
+
+ 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_PGP);
+ }
+
+ /* 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, ".inlinepgp_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_PGP);
+ }
+
+ parts = g_slist_concat (parts, button);
+
+ g_string_truncate (part_id, len);
+ }
+
+ /* Clean Up */
+ camel_cipher_validity_free (valid);
+ g_object_unref (opart);
+ g_object_unref (cipher);
+
+ return parts;
+}
+
+static const gchar **
+empe_inlinepgp_encrypted_mime_types (EMailExtension *extension)
+{
+ return parser_mime_types;
+}
+
+static void
+e_mail_parser_inline_pgp_encrypted_class_init (EMailParserInlinePGPEncryptedClass *klass)
+{
+ e_mail_parser_inline_pgp_encrypted_parent_class = g_type_class_peek_parent (klass);
+}
+
+static void
+e_mail_parser_parser_extension_interface_init (EMailParserExtensionInterface *iface)
+{
+ iface->parse = empe_inlinepgp_encrypted_parse;
+}
+
+static void
+e_mail_parser_mail_extension_interface_init (EMailExtensionInterface *iface)
+{
+ iface->mime_types = empe_inlinepgp_encrypted_mime_types;
+}
+
+static void
+e_mail_parser_inline_pgp_encrypted_init (EMailParserInlinePGPEncrypted *parser)
+{
+
+}