+
−/*  MasqMail
+
−    Copyright (C) 2000-2001 Oliver Kurth
+
−
+
−    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 2 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, write to the Free Software
+
−    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
−*/
+
−
+
−#include "masqmail.h"
+
−#include <fnmatch.h>
+
−
+
−gboolean
+
−addr_is_local(address * addr)
+
−{
+
−	GList *dom_node;
+
−	GList *addr_node;
+
−	address *a;
+
−
+
−	foreach(conf.local_hosts, dom_node) {
+
−		if (addr->domain == NULL)
+
−			return TRUE;
+
−		if (fnmatch(dom_node->data, addr->domain, FNM_CASEFOLD) == 0) {
+
−			foreach(conf.not_local_addresses, addr_node) {
+
−				a = create_address_qualified(addr_node->data, TRUE, conf.host_name);
+
−				DEBUG(6) debugf("not_local_addresses: addr_node->data=%s a->address=%s\n",
+
−				                addr_node->data, a->address);
+
−				if (addr_isequal(a, addr)) {
+
−					destroy_address(a);
+
−					return FALSE;
+
−				}
+
−				destroy_address(a);
+
−			}
+
−			return TRUE;
+
−		}
+
−	}
+
−	foreach(conf.local_addresses, addr_node) {
+
−		a = create_address_qualified(addr_node->data, TRUE, conf.host_name);
+
−		DEBUG(6) debugf("local_addresses: addr_node->data=%s a->address=%s\n",
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−		                addr_node->data, a->address);
+
−		if (addr_isequal(a, addr)) {
+
−			destroy_address(a);
+
−			return TRUE;
+
−		}
+
−		destroy_address(a);
+
−	}
+
−	return FALSE;
+
−}
+
−
+
−static gboolean
+
−addr_isequal_alias(address * addr1, address * addr2)
+
−{
+
−	return (conf.alias_local_cmp(addr1->local_part, addr2->local_part) == 0)
+
−	       && (strcasecmp(addr1->domain, addr2->domain) == 0);
+
−}
+
−
+
−static GList*
+
−parse_list(gchar * line)
+
−{
+
−	GList *list = NULL;
+
−	gchar buf[256];
+
−	gchar *p, *q;
+
−
+
−	p = line;
+
−	while (*p != '\0') {
+
−		q = buf;
+
−		while (isspace(*p))
+
−			p++;
+
−		if (*p != '\"') {
+
−			while (*p && (*p != ',') && (q < buf + 255))
+
−				*(q++) = *(p++);
+
−			*q = '\0';
+
−		} else {
+
−			gboolean escape = FALSE;
+
−			p++;
+
−			while (*p && (*p != '\"' || escape) && (q < buf + 255)) {
+
−				if ((*p == '\\') && !escape)
+
−					escape = TRUE;
+
−				else {
+
−					escape = FALSE;
+
−					*(q++) = *p;
+
−				}
+
−				p++;
+
−			}
+
−			*q = '\0';
+
−			while (*p && (*p != ','))
+
−				p++;
+
−		}
+
−		list = g_list_append(list, g_strdup(g_strchomp(buf)));
+
−		if (*p)
+
−			p++;
+
−	}
+
−	return list;
+
−}
+
−
+
−GList*
+
−alias_expand(GList * alias_table, GList * rcpt_list, GList * non_rcpt_list)
+
−{
+
−	GList *done_list = NULL;
+
−	GList *rcpt_node = g_list_copy(rcpt_list);
+
−
+
−	while (rcpt_node != NULL) {
+
−		address *addr = (address *) (rcpt_node->data);
+
−		DEBUG(5) debugf("alias_expand begin: '%s@%s'\n", addr->local_part, addr->domain);
+
−		/* if(addr_is_local(addr) && (addr->local_part[0] != '|') && */
+
−		if (addr_is_local(addr) && !(addr->flags & ADDR_FLAG_NOEXPAND)) {
+
−			gchar *val;
+
−
+
−			DEBUG(5) debugf("alias: '%s' is local\n", addr->local_part);
+
−			if (strcasecmp(addr->local_part, "postmaster") == 0)
+
−				/* postmaster needs always to be matched caseless
+
−				   see RFC 822 and RFC 5321 */
+
−				val = (gchar *) table_find_func(alias_table, addr->local_part, strcasecmp);
+
−			else
+
−				val = (gchar *) table_find_func(alias_table, addr->local_part, conf.alias_local_cmp);
+
−
+
−			if (val != NULL) {
+
−				GList *val_list = parse_list(val);
+
−				GList *val_node;
+
−				GList *alias_list = NULL;
+
−
+
−				DEBUG(5) debugf("alias: '%s' -> '%s'\n", addr->local_part, val);
+
−				foreach(val_list, val_node) {
+
−					gchar *val = (gchar *) (val_node->data);
+
−					address *alias_addr;
+
−					address *addr_parent = NULL;
+
−
+
−					if (val[0] == '|') {
+
−						DEBUG(5) debugf("alias: %s is a pipe address\n", val);
+
−						alias_addr = create_address_pipe(val);
+
−						DEBUG(5) debugf("alias_pipe: %s is a pipe address\n", alias_addr->local_part);
+
−					} else if (val[0] == '\\') {
+
−						DEBUG(5) debugf("alias: shall not be expanded: '%s'\n", val);
+
−						alias_addr = create_address_qualified(&(val[1]), TRUE, conf.host_name);
+
−						alias_addr->flags |= ADDR_FLAG_NOEXPAND;
+
−						DEBUG(5) debugf("alias: not expanded: '%s'\n", alias_addr->local_part);
+
−					} else {
+
−						alias_addr = create_address_qualified(val, TRUE, conf.host_name);
+
−
+
−						/* search in parents for loops: */
+
−						for (addr_parent = addr; addr_parent; addr_parent = addr_parent->parent) {
+
−							if (addr_isequal_alias (alias_addr, addr_parent)) {
+
−								logwrite(LOG_ALERT,
+
−								         "detected alias loop, (ignoring): %s@%s -> %s@%s\n",
+
−								         addr_parent->local_part,
+
−								         addr_parent->domain,
+
−								         addr->local_part, addr->domain);
+
−								break;
+
−							}
+
−						}
+
−					}
+
−					if (!addr_parent) {
+
−						alias_list = g_list_append(alias_list, alias_addr);
+
−						alias_addr->parent = addr;
+
−					}
+
−					g_free(val);
+
−				}
+
−				g_list_free(val_list);
+
−				addr->children = g_list_copy(alias_list);
+
−				rcpt_node = g_list_concat(rcpt_node, alias_list);
+
−			} else {
+
−				DEBUG(5) debugf("alias: '%s' is completed\n", addr->local_part);
+
−				done_list = g_list_append(done_list, addr);
+
−			}
+
−		} else {
+
−			DEBUG(5) debugf("alias: '%s@%s' is not local\n", addr->local_part, addr->domain);
+
−			done_list = g_list_append(done_list, addr);
+
−		}
+
−		rcpt_node = g_list_next(rcpt_node);
+
−	}
+
−
+
−	/* delete addresses from done_list if they are in the non_rcpt_list */
+
−	if (non_rcpt_list) {
+
−		GList *rcpt_node_next;
+
−		for (rcpt_node = g_list_first(done_list); rcpt_node; rcpt_node = rcpt_node_next) {
+
−			address *addr = (address *) (rcpt_node->data);
+
−			GList *non_node;
+
−
+
−			rcpt_node_next = g_list_next(rcpt_node);
+
−
+
−			foreach(non_rcpt_list, non_node) {
+
−				address *non_addr = (address *) (non_node->data);
+
−				if (addr_isequal(addr, non_addr)) {
+
−					done_list = g_list_remove_link(done_list, rcpt_node);
+
−					g_list_free_1(rcpt_node);
+
−					addr_mark_delivered(addr);  /* this address is still in the children lists of the original address */
+
−					break;
+
−				}
+
−			}
+
−		}
+
−	}
+
−	return done_list;
+
−}