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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/** BEGIN COPYRIGHT BLOCK
* Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
* Copyright (C) 2005 Red Hat, Inc.
* All rights reserved.
* END COPYRIGHT BLOCK **/
/* lasemail.cpp
* This file contains the Email LAS code.
*/
#include <ldap.h>
#include <nsacl/aclapi.h>
#define ACL_ATTR_EMAIL "email"
extern "C" {
extern int LASEmailEval(NSErr_t *errp, char *attr_name, CmpOp_t comparator, char *attr_pattern, ACLCachable_t *cachable, void **LAS_cookie, PList_t subject, PList_t resource, PList_t auth_info, PList_t global_auth);
extern void LASEmailFlush(void **las_cookie);
extern int LASEmailModuleInit();
}
/*
* LASEmailEval
* INPUT
* attr_name The string "email" - in lower case.
* comparator CMP_OP_EQ or CMP_OP_NE only
* attr_pattern A comma-separated list of emails
* (we currently support only one e-mail addr)
* *cachable Always set to ACL_NOT_CACHABLE.
* subject Subject property list
* resource Resource property list
* auth_info Authentication info, if any
* RETURNS
* retcode The usual LAS return codes.
*/
int LASEmailEval(NSErr_t *errp, char *attr_name, CmpOp_t comparator,
char *attr_pattern, ACLCachable_t *cachable,
void **LAS_cookie, PList_t subject, PList_t resource,
PList_t auth_info, PList_t global_auth)
{
char *uid;
char *email;
int rv;
LDAP *ld;
char *basedn;
LDAPMessage *res;
int numEntries;
char filter[1024];
int matched;
*cachable = ACL_NOT_CACHABLE;
*LAS_cookie = (void *)0;
if (strcmp(attr_name, ACL_ATTR_EMAIL) != 0) {
fprintf(stderr, "LASEmailEval called for incorrect attr \"%s\"\n",
attr_name);
return LAS_EVAL_INVALID;
}
if ((comparator != CMP_OP_EQ) && (comparator != CMP_OP_NE)) {
fprintf(stderr, "LASEmailEval called with incorrect comparator %d\n",
comparator);
return LAS_EVAL_INVALID;
}
if (!strcmp(attr_pattern, "anyone")) {
*cachable = ACL_INDEF_CACHABLE;
return comparator == CMP_OP_EQ ? LAS_EVAL_TRUE : LAS_EVAL_FALSE;
}
/* get the authenticated user name */
rv = ACL_GetAttribute(errp, ACL_ATTR_USER, (void **)&uid,
subject, resource, auth_info, global_auth);
if (rv != LAS_EVAL_TRUE) {
return rv;
}
/* We have an authenticated user */
if (!strcmp(attr_pattern, "all")) {
return comparator == CMP_OP_EQ ? LAS_EVAL_TRUE : LAS_EVAL_FALSE;
}
/* do an ldap lookup for: (& (uid=<user>) (mail=<email>)) */
rv = ACL_LDAPDatabaseHandle(errp, NULL, &ld, &basedn);
if (rv != LAS_EVAL_TRUE) {
fprintf(stderr, "unable to get LDAP handle\n");
return rv;
}
/* Formulate the filter -- assume single e-mail in attr_pattern */
/* If we support multiple comma separated e-mail addresses in the
* attr_pattern then the filter will look like:
* (& (uid=<user>) (| (mail=<email1>) (mail=<email2>)))
*/
sprintf(filter, "(& (uid=%s) (mail=%s))", uid, attr_pattern);
rv = ldap_search_s(ld, basedn, LDAP_SCOPE_SUBTREE, filter,
0, 0, &res);
if (rv != LDAP_SUCCESS)
{
fprintf(stderr, "ldap_search_s: %s\n", ldap_err2string(rv));
return LAS_EVAL_FAIL;
}
numEntries = ldap_count_entries(ld, res);
if (numEntries == 1) {
/* success */
LDAPMessage *entry = ldap_first_entry(ld, res);
char *dn = ldap_get_dn(ld, entry);
fprintf(stderr, "ldap_search_s: Entry found. DN: \"%s\"\n", dn);
ldap_memfree(dn);
matched = 1;
}
else if (numEntries == 0) {
/* not found -- but not an error */
fprintf(stderr, "ldap_search_s: Entry not found. Filter: \"%s\"\n",
filter);
matched = 0;
}
else if (numEntries > 0) {
/* Found more than one entry! */
fprintf(stderr, "ldap_search_s: Found more than one entry. Filter: \"%s\"\n",
filter);
return LAS_EVAL_FAIL;
}
if (comparator == CMP_OP_EQ) {
rv = (matched ? LAS_EVAL_TRUE : LAS_EVAL_FALSE);
}
else {
rv = (matched ? LAS_EVAL_FALSE : LAS_EVAL_TRUE);
}
return rv;
}
/* LASEmailFlush
* Deallocates any memory previously allocated by the LAS
*/
void
LASEmailFlush(void **las_cookie)
{
/* do nothing */
return;
}
/* LASEmailModuleInit --
* Register the e-mail LAS.
*
* To load this functions in the web server, compile the file in
* "lasemail.so" and add the following lines to the
* <ServerRoot>/https-<name>/config/obj.conf file. Be sure to change the
* "lasemail.so" portion to the full pathname. E.g. /nshome/lib/lasemail.so.
*
* Init fn="load-modules" funcs="LASEmailModuleInit" shlib="lasemail.so"
* Init fn="acl-register-module" module="lasemail" func="LASEmailModuleInit"
*/
int LASEmailModuleInit ()
{
NSErr_t err = NSERRINIT;
NSErr_t *errp = &err;
int rv;
rv = ACL_LasRegister(errp, ACL_ATTR_EMAIL, LASEmailEval, LASEmailFlush);
if (rv < 0) {
fprintf(stderr, "ACL_LasRegister failed. Error: %d\n", rv);
return rv;
}
return rv;
}
|
