2 ** Copyright (C) 2006 Thadeu Lima de Souza Cascardo <cascardo@minaslivre.org>
3 ** Copyright (C) 2009 Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
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.
37 pop_check_user (pop_t *pop)
41 end = pop->line->str + pop->line->len;
43 while (s < end && *s == ' ') s++;
46 if (g_ascii_strncasecmp (s, "USER ", 5) != 0)
49 while (s < end && *s == ' ') s++;
53 while (end >= s && (*end == '\n' || *end == '\r')) end--;
58 pop->user = g_strndup (s, end - s + 2);
59 pop->user[end - s + 1] = 0;
64 pop_getline (pop_t *pop)
68 if (pop->buffer->len == 0)
70 end = memchr (pop->buffer->str, '\n', pop->buffer->len);
73 len = end - pop->buffer->str + 1;
74 g_string_truncate (pop->line, 0);
75 g_string_append_len (pop->line, pop->buffer->str, len);
76 g_string_erase (pop->buffer, 0, len);
81 pop_read (net_hook_t *hook, gchar *buffer, size_t len)
83 pop_t *pop = hook->data;
84 g_string_append_len (pop->buffer, buffer, len);
85 while (pop_getline (pop) == 0)
87 if (pop_check_user (pop) == 0)
89 g_message ("User is trying to authenticate as %s.", pop->user);
90 if (usermap_perm (pop->user) == ACCESS_DENY)
92 g_message ("Denying access to user %s.", pop->user);
94 hc_conn_close (hook->peer->conn);
95 hc_conn_close (hook->conn);
99 hook->data = pop->orig_data;
100 pop->orig_read (hook, pop->line->str, pop->line->len);
106 pop_hook_new (net_hook_t *layer)
109 pop = g_slice_new (pop_t);
110 pop->orig_read = layer->read;
111 pop->orig_data = layer->data;
112 pop->buffer = g_string_sized_new (4096);
113 pop->line = g_string_sized_new (4096);
115 layer->read = pop_read;
121 pop_destroy (net_hook_t *hook)
123 pop_t *pop = hook->data;
124 g_string_free (pop->buffer, TRUE);
125 g_string_free (pop->line, TRUE);
128 hook->read = pop->orig_read;
129 hook->data = pop->orig_data;
130 g_slice_free (net_hook_t, (gpointer) pop);