+
−/*  MasqMail
+
−    Copyright (C) 2000-2001 Oliver Kurth
+
−
+
−    This program is free software; you can redistribute it and/or modify
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−    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,
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−    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>
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−
+
−gboolean addr_is_local(address *addr)
+
−{
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−  GList *dom_node;
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−  GList *addr_node;
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−  address *a;
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−
+
−  foreach(conf.local_hosts, dom_node){
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−    if(addr->domain == NULL)
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−      return TRUE;
+
−    if(fnmatch(dom_node->data, addr->domain, FNM_CASEFOLD) == 0){
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−      foreach(conf.not_local_addresses,addr_node){
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−	a = create_address_qualified(addr_node->data, TRUE, conf.host_name);
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−	if(addr_isequal(a,addr)){
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−	  destroy_address(a);
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−	  return FALSE;
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−	}
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−	destroy_address(a);
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−      }
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−      return TRUE;
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−    }
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−  }
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−  foreach(conf.local_addresses,addr_node){
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−    a = create_address_qualified(addr_node->data, TRUE, conf.host_name);
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−    if(addr_isequal(a,addr)){
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−      destroy_address(a);
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−      return TRUE;
+
−    }
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−    destroy_address(a);
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−  }
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−  return FALSE;
+
−}
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−
+
−static
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−gboolean addr_isequal_alias(address *addr1, address *addr2)
+
−{
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−  return
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−    (conf.alias_local_cmp(addr1->local_part, addr2->local_part) == 0) &&
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−    (strcasecmp(addr1->domain, addr2->domain) == 0);
+
−}
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−
+
−static
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−GList *parse_list(gchar *line)
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−{
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−  GList *list = NULL;
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−  gchar buf[256];
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−  gchar *p, *q;
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−
+
−  p = line;
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−  while(*p != 0){
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−    q = buf;
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−    while(isspace(*p)) p++;
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−    if(*p != '\"'){
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−      while(*p && (*p != ',') && (q < buf+255))
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−	*(q++) = *(p++);
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−      *q = 0;
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−    }else{
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−      gboolean escape = FALSE;
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−      p++;
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−      while(*p && (*p != '\"' || escape) && (q < buf+255)){
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−	if((*p == '\\') && !escape)
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−	  escape = TRUE;
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−	else{
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−	  escape = FALSE;
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−	  *(q++) = *p;
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−	}
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−	p++;
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−      }
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−      *q = 0;
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−      while(*p && (*p != ',')) p++;
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−    }
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−    list = g_list_append(list, g_strdup(g_strchomp(buf)));
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−    if(*p) p++;
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−  }
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−  return list;
+
−}
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−
+
−GList *alias_expand(GList *alias_table, GList *rcpt_list, GList *non_rcpt_list)
+
−{
+
−  GList *done_list = NULL;
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−  GList *rcpt_node = g_list_copy(rcpt_list);
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−
+
−  while(rcpt_node != NULL){
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−    address *addr = (address *)(rcpt_node->data);
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−    DEBUG(5) debugf("alias_expand begin: '%s@%s'\n", addr->local_part, addr->domain);
+
−//    if(addr_is_local(addr) && (addr->local_part[0] != '|') &&
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−    if(addr_is_local(addr) && 
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−        !(addr->flags & ADDR_FLAG_NOEXPAND)){
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−      gchar *val;
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−      
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−      /* special handling for postmaster */
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−      if(strcasecmp(addr->local_part, "postmaster") == 0)
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−	val = (gchar *)table_find_func(alias_table, addr->local_part, strcasecmp);
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−      else
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−	val = (gchar *)table_find_func(alias_table, addr->local_part, conf.alias_local_cmp);
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−
+
−      DEBUG(5) debugf("alias: '%s' is local\n", addr->local_part);
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−      if(val != NULL){
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−	GList *val_list = parse_list(val);
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−	GList *val_node;
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−	GList *alias_list = NULL;
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−
+
−	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;
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−	  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)){
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−		logwrite(LOG_ALERT, "detected alias loop, (ignoring): %s@%s -> %s@%s\n",
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−			 addr_parent->local_part, addr_parent->domain,
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−			 addr->local_part, addr->domain);
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−		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){
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−    GList *rcpt_node_next;
+
−    for(rcpt_node = g_list_first(done_list);
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−	 rcpt_node;
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−	 rcpt_node = rcpt_node_next){
+
−      address *addr = (address *)(rcpt_node->data);
+
−      GList *non_node;
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−
+
−      rcpt_node_next = g_list_next(rcpt_node);
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−
+
−      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
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−				      of the original address */
+
−	  break;
+
−	}
+
−      }
+
−    }
+
−  }
+
−  return done_list;
+
−}