1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999, 2001, 2005, 2006, 2007,
2008 Free Software Foundation, Inc.
GNU Mailutils 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, or (at your option)
any later version.
GNU Mailutils 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 GNU Mailutils; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301 USA */
#include "imap4d.h"
struct imap_auth {
char *name;
imap4d_auth_handler_fp handler;
};
static mu_list_t imap_auth_list;
static int
comp (const void *item, const void *data)
{
const struct imap_auth *p = item;
return strcmp (p->name, (const char*) data);
}
void
auth_add (char *name, imap4d_auth_handler_fp handler)
{
struct imap_auth *p = malloc (sizeof (*p));
if (!p)
imap4d_bye (ERR_NO_MEM);
p->name = name;
p->handler = handler;
if (!imap_auth_list)
{
mu_list_create (&imap_auth_list);
mu_list_set_comparator (imap_auth_list, comp);
}
mu_list_append (imap_auth_list, (void*)p);
}
void
auth_remove (char *name)
{
mu_list_remove (imap_auth_list, (void*) name);
}
static int
_auth_capa (void *item, void *usused)
{
struct imap_auth *p = item;
util_send(" AUTH=%s", p->name);
return 0;
}
struct auth_data {
struct imap4d_command *command;
char *auth_type;
char *arg;
char *username;
int result;
};
static int
_auth_try (void *item, void *data)
{
struct imap_auth *p = item;
struct auth_data *ap = data;
if (strcmp (p->name, ap->auth_type) == 0)
{
ap->result = p->handler (ap->command, ap->auth_type, &ap->username);
return 1;
}
return 0;
}
void
imap4d_auth_capability ()
{
mu_list_do (imap_auth_list, _auth_capa, NULL);
}
/*
6.2.1. AUTHENTICATE Command
Arguments: authentication mechanism name
*/
int
imap4d_authenticate (struct imap4d_command *command, imap4d_tokbuf_t tok)
{
char *auth_type;
struct auth_data adata;
if (imap4d_tokbuf_argc (tok) != 3)
return util_finish (command, RESP_BAD, "Invalid arguments");
auth_type = imap4d_tokbuf_getarg (tok, IMAP4_ARG_1);
if (tls_required)
return util_finish (command, RESP_NO,
"Command disabled: Use STARTTLS first");
adata.command = command;
adata.auth_type = auth_type;
adata.arg = NULL;
adata.username = NULL;
if (mu_list_do (imap_auth_list, _auth_try, &adata) == 0)
return util_finish (command, RESP_NO,
"Authentication mechanism not supported");
if (adata.result == RESP_OK && adata.username)
{
if (imap4d_session_setup (adata.username))
return util_finish (command, RESP_NO,
"User name or passwd rejected");
else
return util_finish (command, RESP_OK,
"%s authentication successful", auth_type);
}
return util_finish (command, adata.result,
"%s authentication failed", auth_type);
}
|
