2 * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3 * Copyright (C) 1999-2003 Hiroyuki Yamamoto and the Sylpheed-Claws Team
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
29 #include "common/sylpheed.h"
30 #include "common/version.h"
39 #include "prefs_gtk.h"
41 #include "clamav_plugin.h"
45 static ClamAvConfig config;
47 static PrefParam param[] = {
48 {"clamav_enable", "FALSE", &config.clamav_enable, P_BOOL,
50 {"clamav_enable_arc", "FALSE", &config.clamav_enable_arc, P_BOOL,
52 {"clamav_max_size", "1", &config.clamav_max_size, P_USHORT,
54 {"clamav_recv_infected", "TRUE", &config.clamav_recv_infected, P_BOOL,
56 {"clamav_save_folder", NULL, &config.clamav_save_folder, P_STRING,
59 {NULL, NULL, NULL, P_OTHER, NULL, NULL, NULL}
62 struct scan_parameters {
66 struct cl_limits limits;
67 gboolean scan_archive;
70 static gboolean scan_func(GNode *node, gpointer data)
72 struct scan_parameters *params = (struct scan_parameters *) data;
73 MimeInfo *mimeinfo = (MimeInfo *) node->data;
76 unsigned long int size;
79 outfile = procmime_get_tmp_file_name(mimeinfo);
80 if (procmime_get_part(outfile, mimeinfo) < 0)
81 g_warning("Can't get the part of multipart message.");
83 debug_print("Scanning %s\n", outfile);
84 if ((ret = cl_scanfile(outfile, &virname, &size, params->root,
85 ¶ms->limits, params->scan_archive)) == CL_VIRUS) {
86 params->is_infected = TRUE;
87 debug_print("Detected %s virus.\n", virname);
89 debug_print("No virus detected.\n");
91 debug_print("Error: %s\n", cl_perror(ret));
97 return params->is_infected;
100 static gboolean mail_filtering_hook(gpointer source, gpointer data)
102 MailFilteringData *mail_filtering_data = (MailFilteringData *) source;
103 MsgInfo *msginfo = mail_filtering_data->msginfo;
104 gboolean is_infected = FALSE;
108 struct scan_parameters params;
110 if (!config.clamav_enable)
113 mimeinfo = procmime_scan_message(msginfo);
114 if (!mimeinfo) return FALSE;
116 debug_print("Scanning message %d for viruses\n", msginfo->msgnum);
120 params.limits.maxfiles = 1000; /* max files */
121 params.limits.maxfilesize = config.clamav_max_size * 1048576; /* maximum archived file size */
122 params.limits.maxreclevel = 8; /* maximum recursion level */
124 if (config.clamav_enable_arc)
125 params.scan_archive = TRUE;
127 if((ret = cl_loaddbdir(cl_retdbdir(), ¶ms.root, &no))) {
128 debug_print("cl_loaddbdir: %s\n", cl_perror(ret));
131 debug_print("Database loaded (containing in total %d signatures)\n", no);
133 cl_buildtrie(params.root);
135 g_node_traverse(mimeinfo->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1, scan_func, ¶ms);
138 if (config.clamav_recv_infected) {
139 FolderItem *clamav_save_folder;
141 if ((!config.clamav_save_folder) ||
142 (config.clamav_save_folder[0] == '\0') ||
143 ((clamav_save_folder = folder_find_item_from_identifier(config.clamav_save_folder)) == NULL))
144 clamav_save_folder = folder_get_default_trash();
146 procmsg_msginfo_unset_flags(msginfo, ~0, 0);
147 folder_item_move_msg(clamav_save_folder, msginfo);
149 folder_item_remove_msg(msginfo->folder, msginfo->msgnum);
153 cl_freetrie(params.root);
154 procmime_mimeinfo_free_all(mimeinfo);
156 return params.is_infected;
159 ClamAvConfig *clamav_get_config(void)
164 void clamav_save_config(void)
169 debug_print("Saving ClamAV Page\n");
171 rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, COMMON_RC, NULL);
172 pfile = prefs_write_open(rcpath);
174 if (!pfile || (prefs_set_block_label(pfile, "ClamAV") < 0))
177 if (prefs_write_param(param, pfile->fp) < 0) {
178 g_warning("failed to write ClamAV configuration to file\n");
179 prefs_file_close_revert(pfile);
182 fprintf(pfile->fp, "\n");
184 prefs_file_close(pfile);
187 gint plugin_init(gchar **error)
189 if ((sylpheed_get_version() > VERSION_NUMERIC)) {
190 *error = g_strdup("Your sylpheed version is newer than the version the plugin was built with");
194 if ((sylpheed_get_version() < MAKE_NUMERIC_VERSION(0, 9, 3, 86))) {
195 *error = g_strdup("Your sylpheed version is too old");
199 hook_id = hooks_register_hook(MAIL_FILTERING_HOOKLIST, mail_filtering_hook, NULL);
201 *error = g_strdup("Failed to register mail filtering hook");
205 prefs_set_default(param);
206 prefs_read_config(param, "ClamAV", COMMON_RC);
208 debug_print("ClamAV plugin loaded\n");
214 void plugin_done(void)
216 hooks_unregister_hook(MAIL_FILTERING_HOOKLIST, hook_id);
217 g_free(config.clamav_save_folder);
219 debug_print("ClamAV plugin unloaded\n");
222 const gchar *plugin_name(void)
224 return _("Clam AntiVirus");
227 const gchar *plugin_desc(void)
229 return _("This plugin uses Clam AntiVirus to scan all message attachments "
230 "that are received from a POP account.\n"
232 "When a message attachment is found to contain a virus it can be "
233 "deleted or saved in a specially designated folder.\n"
235 "This plugin only contains the actual function for scanning "
236 "and deleting or moving the message. You probably want to load "
237 "the Gtk+ User Interface plugin too, otherwise you will have to "
238 "manually write the plugin configuration.\n");
241 const gchar *plugin_type(void)