aboutsummaryrefslogtreecommitdiff
path: root/lib/ldap.c
blob: af69b94e9602021b0504df7d52a6829c864ec2fd (plain)
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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
/*****************************************************************************
 *                                  _   _ ____  _     
 *  Project                     ___| | | |  _ \| |    
 *                             / __| | | | |_) | |    
 *                            | (__| |_| |  _ <| |___ 
 *                             \___|\___/|_| \_\_____|
 *
 *  The contents of this file are subject to the Mozilla Public License
 *  Version 1.0 (the "License"); you may not use this file except in
 *  compliance with the License. You may obtain a copy of the License at
 *  http://www.mozilla.org/MPL/
 *
 *  Software distributed under the License is distributed on an "AS IS"
 *  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 *  License for the specific language governing rights and limitations
 *  under the License.
 *
 *  The Original Code is Curl.
 *
 *  The Initial Developer of the Original Code is Daniel Stenberg.
 *
 *  Portions created by the Initial Developer are Copyright (C) 1998.
 *  All Rights Reserved.
 *
 * ------------------------------------------------------------
 * Contributor(s):
 *  Bjørn Reese <breese@mail1.stofanet.dk>
 *
 * 	http://curl.haxx.se
 *
 * $Source$
 * $Revision$
 * $Date$
 * $Author$
 * $State$
 * $Locker$
 *
 * ------------------------------------------------------------
 ****************************************************************************/

/* -- WIN32 approved -- */
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>

#include "setup.h"

#if defined(WIN32) && !defined(__GNUC__)
#else
# ifdef HAVE_UNISTD_H
#  include <unistd.h>
# endif
# ifdef HAVE_DLFCN_H
#  include <dlfcn.h>
# endif
#endif

#include "urldata.h"
#include <curl/curl.h>
#include "sendf.h"
#include "escape.h"

#define _MPRINTF_REPLACE /* use our functions only */
#include <curl/mprintf.h>


#define DYNA_GET_FUNCTION(type, fnc) \
  (fnc) = (type)DynaGetFunction(#fnc); \
  if ((fnc) == NULL) { \
    return CURLE_FUNCTION_NOT_FOUND; \
  } \

/***********************************************************************
 */
static void *libldap = NULL;
static void *liblber = NULL;

static void DynaOpen(void)
{
#if defined(HAVE_DLOPEN) || defined(HAVE_LIBDL)
  if (libldap == NULL) {
    /*
     * libldap.so should be able to resolve its dependency on
     * liblber.so automatically, but since it does not we will
     * handle it here by opening liblber.so as global.
     */
    dlopen("liblber.so",
#ifdef RTLD_LAZY_GLOBAL /* It turns out some systems use this: */
           RTLD_LAZY_GLOBAL
#else
#ifdef RTLD_GLOBAL
           RTLD_LAZY | RTLD_GLOBAL
#else
           /* and some systems don't have the RTLD_GLOBAL symbol */
           RTLD_LAZY
#endif
#endif
           );
    libldap = dlopen("libldap.so", RTLD_LAZY);
  }
#endif
}

static void DynaClose(void)
{
#if defined(HAVE_DLOPEN) || defined(HAVE_LIBDL)
  if (libldap) {
    dlclose(libldap);
  }
  if (liblber) {
    dlclose(liblber);
  }
#endif
}

static void * DynaGetFunction(char *name)
{
  void *func = NULL;

#if defined(HAVE_DLOPEN) || defined(HAVE_LIBDL)
  if (libldap) {
    func = dlsym(libldap, name);
  }
#endif
  
  return func;
}

static int WriteProc(void *param, char *text, int len)
{
  struct UrlData *data = (struct UrlData *)param;

  data->fwrite(text, 1, strlen(text), data->out);
  return 0;
}

CURLcode ldap_done(struct connectdata *conn)
{
  return CURLE_OK;
}

/***********************************************************************
 */
CURLcode ldap(struct connectdata *conn)
{
  CURLcode status = CURLE_OK;
  int rc;
  void *(*ldap_open)(char *, int);
  int (*ldap_simple_bind_s)(void *, char *, char *);
  int (*ldap_unbind_s)(void *);
  int (*ldap_url_search_s)(void *, char *, int, void **);
  void *(*ldap_first_entry)(void *, void *);
  void *(*ldap_next_entry)(void *, void *);
  char *(*ldap_err2string)(int);
  int (*ldap_entry2text)(void *, char *, void *, void *, char **, char **, int (*)(void *, char *, int), void *, char *, int, unsigned long);
  int (*ldap_entry2html)(void *, char *, void *, void *, char **, char **, int (*)(void *, char *, int), void *, char *, int, unsigned long, char *, char *);
  void *server;
  void *result;
  void *entryIterator;

  int ldaptext;
  struct UrlData *data=conn->data;
  
  infof(data, "LDAP: %s %s\n", data->url);

  DynaOpen();
  if (libldap == NULL) {
    failf(data, "The needed LDAP library/libraries couldn't be opened");
    return CURLE_LIBRARY_NOT_FOUND;
  }

  ldaptext = data->bits.ftp_ascii; /* This is a dirty hack */
  
  /* The types are needed because ANSI C distinguishes between
   * pointer-to-object (data) and pointer-to-function.
   */
  DYNA_GET_FUNCTION(void *(*)(char *, int), ldap_open);
  DYNA_GET_FUNCTION(int (*)(void *, char *, char *), ldap_simple_bind_s);
  DYNA_GET_FUNCTION(int (*)(void *), ldap_unbind_s);
  DYNA_GET_FUNCTION(int (*)(void *, char *, int, void **), ldap_url_search_s);
  DYNA_GET_FUNCTION(void *(*)(void *, void *), ldap_first_entry);
  DYNA_GET_FUNCTION(void *(*)(void *, void *), ldap_next_entry);
  DYNA_GET_FUNCTION(char *(*)(int), ldap_err2string);
  DYNA_GET_FUNCTION(int (*)(void *, char *, void *, void *, char **, char **, int (*)(void *, char *, int), void *, char *, int, unsigned long), ldap_entry2text);
  DYNA_GET_FUNCTION(int (*)(void *, char *, void *, void *, char **, char **, int (*)(void *, char *, int), void *, char *, int, unsigned long, char *, char *), ldap_entry2html);
  
  server = ldap_open(data->hostname, data->port);
  if (server == NULL) {
    failf(data, "LDAP: Cannot connect to %s:%d",
	  data->hostname, data->port);
    status = CURLE_COULDNT_CONNECT;
  } else {
    rc = ldap_simple_bind_s(server, data->user, data->passwd);
    if (rc != 0) {
      failf(data, "LDAP: %s", ldap_err2string(rc));
      status = CURLE_LDAP_CANNOT_BIND;
    } else {
      rc = ldap_url_search_s(server, data->url, 0, &result);
      if (rc != 0) {
	failf(data, "LDAP: %s", ldap_err2string(rc));
	status = CURLE_LDAP_SEARCH_FAILED;
      } else {
	for (entryIterator = ldap_first_entry(server, result);
	     entryIterator;
	     entryIterator = ldap_next_entry(server, entryIterator))
	  {
	    if (ldaptext) {
	      rc = ldap_entry2text(server, NULL, entryIterator, NULL,
				   NULL, NULL, WriteProc, data,
				   "", 0, 0);
	      if (rc != 0) {
		failf(data, "LDAP: %s", ldap_err2string(rc));
		status = CURLE_LDAP_SEARCH_FAILED;
	      }
	    } else {
	      rc = ldap_entry2html(server, NULL, entryIterator, NULL,
				   NULL, NULL, WriteProc, data,
				   "", 0, 0, NULL, NULL);
	      if (rc != 0) {
		failf(data, "LDAP: %s", ldap_err2string(rc));
		status = CURLE_LDAP_SEARCH_FAILED;
	      }
	    }
	  }
      }
      ldap_unbind_s(server);
    }
  }
  DynaClose();
  
  return status;
}