-/*
- * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
- * Copyright (C) 2003-2007 the Claws Mail Team
- *
- * This program 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 3 of the License, or
- * (at your option) any later version.
- *
- * 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 General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include "defs.h"
-
-#include <glib.h>
-#include <glib/gi18n.h>
-#include <clamav.h>
-
-#ifdef CL_DB_STDOPT
-#define NEW_CLAMAV 1
-#else
-#undef NEW_CLAMAV
-#endif
-
-#include "common/claws.h"
-#include "common/version.h"
-#include "plugin.h"
-#include "utils.h"
-#include "hooks.h"
-#include "inc.h"
-#include "mimeview.h"
-#include "folder.h"
-#include "prefs.h"
-#include "prefs_gtk.h"
-
-#include "clamav_plugin.h"
-
-#define PLUGIN_NAME (_("Clam AntiVirus"))
-
-static guint hook_id;
-static MessageCallback message_callback;
-
-static ClamAvConfig config;
-
-static PrefParam param[] = {
- {"clamav_enable", "FALSE", &config.clamav_enable, P_BOOL,
- NULL, NULL, NULL},
- {"clamav_enable_arc", "FALSE", &config.clamav_enable_arc, P_BOOL,
- NULL, NULL, NULL},
- {"clamav_max_size", "1", &config.clamav_max_size, P_USHORT,
- NULL, NULL, NULL},
- {"clamav_recv_infected", "TRUE", &config.clamav_recv_infected, P_BOOL,
- NULL, NULL, NULL},
- {"clamav_save_folder", NULL, &config.clamav_save_folder, P_STRING,
- NULL, NULL, NULL},
-
- {NULL, NULL, NULL, P_OTHER, NULL, NULL, NULL}
-};
-
-#ifdef NEW_CLAMAV
-static struct cl_engine *engine;
-#else
-static struct cl_node *cl_database;
-#endif
-
-struct scan_parameters {
- gboolean is_infected;
-
- struct cl_limits limits;
-#ifdef NEW_CLAMAV
- struct cl_engine *engine;
-#else
- struct cl_node *root;
-#endif
- gboolean scan_archive;
-};
-
-static gboolean scan_func(GNode *node, gpointer data)
-{
- struct scan_parameters *params = (struct scan_parameters *) data;
- MimeInfo *mimeinfo = (MimeInfo *) node->data;
- gchar *outfile;
- int ret;
- unsigned long int size;
- const char *virname;
-
- outfile = procmime_get_tmp_file_name(mimeinfo);
- if (procmime_get_part(outfile, mimeinfo) < 0)
- g_warning("Can't get the part of multipart message.");
- else {
- debug_print("Scanning %s\n", outfile);
-#ifdef NEW_CLAMAV
- if ((ret = cl_scanfile(outfile, &virname, &size, params->engine,
- ¶ms->limits, params->scan_archive)) == CL_VIRUS) {
-#else
- if ((ret = cl_scanfile(outfile, &virname, &size, params->root,
- ¶ms->limits, params->scan_archive)) == CL_VIRUS) {
-#endif
- params->is_infected = TRUE;
- debug_print("Detected %s virus.\n", virname);
- } else {
- debug_print("No virus detected.\n");
- if (ret != CL_CLEAN)
- debug_print("Error: %s\n", cl_strerror(ret));
- }
-
- g_unlink(outfile);
- }
-
- return params->is_infected;
-}
-
-static gboolean mail_filtering_hook(gpointer source, gpointer data)
-{
- MailFilteringData *mail_filtering_data = (MailFilteringData *) source;
- MsgInfo *msginfo = mail_filtering_data->msginfo;
- MimeInfo *mimeinfo;
-
- struct scan_parameters params;
-
- if (!config.clamav_enable)
- return FALSE;
-
- mimeinfo = procmime_scan_message(msginfo);
- if (!mimeinfo) return FALSE;
-
- debug_print("Scanning message %d for viruses\n", msginfo->msgnum);
- if (message_callback != NULL)
- message_callback(_("ClamAV: scanning message..."));
-
- params.is_infected = FALSE;
-#ifdef NEW_CLAMAV
- params.engine = engine;
-#else
- params.root = cl_database;
-#endif
-
- params.limits.maxfiles = 1000; /* max files */
- params.limits.maxfilesize = config.clamav_max_size * 1048576; /* maximum archived file size */
- params.limits.maxreclevel = 8; /* maximum recursion level */
- params.limits.maxratio = 200; /* maximal compression ratio */
-
- if (config.clamav_enable_arc)
- params.scan_archive = TRUE;
-
- g_node_traverse(mimeinfo->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1, scan_func, ¶ms);
-
- if (params.is_infected) {
- if (config.clamav_recv_infected) {
- FolderItem *clamav_save_folder;
-
- if ((!config.clamav_save_folder) ||
- (config.clamav_save_folder[0] == '\0') ||
- ((clamav_save_folder = folder_find_item_from_identifier(config.clamav_save_folder)) == NULL))
- clamav_save_folder = folder_get_default_trash();
-
- procmsg_msginfo_unset_flags(msginfo, ~0, 0);
- msginfo->filter_op = IS_MOVE;
- msginfo->to_filter_folder = clamav_save_folder;
- } else {
- folder_item_remove_msg(msginfo->folder, msginfo->msgnum);
- }
- }
-
- procmime_mimeinfo_free_all(mimeinfo);
-
- return params.is_infected;
-}
-
-ClamAvConfig *clamav_get_config(void)
-{
- return &config;
-}
-
-void clamav_save_config(void)
-{
- PrefFile *pfile;
- gchar *rcpath;
-
- debug_print("Saving ClamAV Page\n");
-
- rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, COMMON_RC, NULL);
- pfile = prefs_write_open(rcpath);
- g_free(rcpath);
- if (!pfile || (prefs_set_block_label(pfile, "ClamAV") < 0))
- return;
-
- if (prefs_write_param(param, pfile->fp) < 0) {
- g_warning("failed to write ClamAV configuration to file\n");
- prefs_file_close_revert(pfile);
- return;
- }
- if (fprintf(pfile->fp, "\n") < 0) {
- FILE_OP_ERROR(rcpath, "fprintf");
- prefs_file_close_revert(pfile);
- } else
- prefs_file_close(pfile);
-}
-
-void clamav_set_message_callback(MessageCallback callback)
-{
- message_callback = callback;
-}
-
-#ifdef NEW_CLAMAV
-int cl_build(struct cl_engine *engine);
-void cl_free(struct cl_engine *engine);
-#else
-int cl_build(struct cl_node *root);
-void cl_free(struct cl_node *root);
-#endif
-
-gint plugin_init(gchar **error)
-{
- gchar *rcpath;
- int ret;
-#ifdef NEW_CLAMAV
- unsigned int sigs = 0;
-#else
- unsigned int no;
-#endif
-
- if (!check_plugin_version(MAKE_NUMERIC_VERSION(2,9,2,72),
- VERSION_NUMERIC, PLUGIN_NAME, error))
- return -1;
-
- hook_id = hooks_register_hook(MAIL_FILTERING_HOOKLIST, mail_filtering_hook, NULL);
- if (hook_id == -1) {
- *error = g_strdup(_("Failed to register mail filtering hook"));
- return -1;
- }
-
- prefs_set_default(param);
- rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, COMMON_RC, NULL);
- prefs_read_config(param, "ClamAV", rcpath, NULL);
- g_free(rcpath);
-
- clamav_gtk_init();
-
-#ifdef NEW_CLAMAV
- if ((ret = cl_load(cl_retdbdir(), &engine, &sigs, CL_DB_STDOPT))) {
- debug_print("cl_load: %s\n", cl_strerror(ret));
- *error = g_strdup_printf("cl_load: %s\n", cl_strerror(ret));
- return -1;
- }
- debug_print("Database loaded (containing in total %d signatures)\n", sigs);
-#else
- if ((ret = cl_loaddbdir(cl_retdbdir(), &cl_database, &no))) {
- debug_print("cl_loaddbdir: %s\n", cl_strerror(ret));
- *error = g_strdup_printf("cl_loaddbdir: %s\n", cl_strerror(ret));
- return -1;
- }
- debug_print("Database loaded (containing in total %d signatures)\n", no);
-#endif
-
-
-#ifdef NEW_CLAMAV
- if((ret = cl_build(engine))) {
-#else
- if((ret = cl_build(cl_database))) {
-#endif
- debug_print("Database initialization error: %s\n", cl_strerror(ret));
- *error = g_strdup_printf("Database initialization error: %s\n", cl_strerror(ret));
- return -1;
- }
-
- debug_print("ClamAV plugin loaded\n");
-
- return 0;
-
-}
-
-gboolean plugin_done(void)
-{
- hooks_unregister_hook(MAIL_FILTERING_HOOKLIST, hook_id);
- g_free(config.clamav_save_folder);
-#ifdef NEW_CLAMAV
- cl_free(engine);
-#else
- cl_free(cl_database);
-#endif
- clamav_gtk_done();
-
- debug_print("ClamAV plugin unloaded\n");
- return TRUE;
-}
-
-const gchar *plugin_name(void)
-{
- return PLUGIN_NAME;
-}
-
-const gchar *plugin_desc(void)
-{
- return _("This plugin uses Clam AntiVirus to scan all messages that are "
- "received from an IMAP, LOCAL or POP account.\n"
- "\n"
- "When a message attachment is found to contain a virus it can be "
- "deleted or saved in a specially designated folder.\n"
- "\n"
- "Options can be found in /Configuration/Preferences/Plugins/Clam AntiVirus");
-}
-
-const gchar *plugin_type(void)
-{
- return "GTK2";
-}
-
-const gchar *plugin_licence(void)
-{
- return "GPL3+";
-}
-
-const gchar *plugin_version(void)
-{
- return VERSION;
-}
-
-struct PluginFeature *plugin_provides(void)
-{
- static struct PluginFeature features[] =
- { {PLUGIN_FILTERING, N_("Virus detection")},
- {PLUGIN_NOTHING, NULL}};
- return features;
-}
projects / claws.git / commitdiff