709 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			709 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /***************************************************************************
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|  *                      _   _ ____  _
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|  *  Project         ___| | | |  _ \| |
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|  *                 / __| | | | |_) | |
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|  *                | (__| |_| |  _ <| |___
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|  *                 \___|\___/|_| \_\_____|
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|  *
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|  * Copyright (C) 1998 - 2008, Daniel Stenberg, <daniel@haxx.se>, et al.
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|  *
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|  * This software is licensed as described in the file COPYING, which
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|  * you should have received as part of this distribution. The terms
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|  * are also available at http://curl.haxx.se/docs/copyright.html.
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|  *
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|  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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|  * copies of the Software, and permit persons to whom the Software is
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|  * furnished to do so, under the terms of the COPYING file.
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|  *
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|  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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|  * KIND, either express or implied.
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|  *
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|  * $Id: ldap.c,v 1.94 2008-10-23 11:49:19 bagder Exp $
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|  ***************************************************************************/
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| 
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| #include "setup.h"
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| 
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| #ifndef CURL_DISABLE_LDAP
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| /* -- WIN32 approved -- */
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| #include <stdio.h>
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| #include <string.h>
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| #include <stdarg.h>
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| #include <stdlib.h>
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| #include <ctype.h>
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| #ifdef NEED_MALLOC_H
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| #include <malloc.h>
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| #endif
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| #include <errno.h>
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| 
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| #ifdef CURL_LDAP_HYBRID         /* If W$ definitions are needed. */
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| # include <windows.h>
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|   /* Remember we are NOT in a W$ compiler! */
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| # undef WIN32
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| # undef _WIN32
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| # undef __WIN32__
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| #endif
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| 
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| #ifdef CURL_LDAP_WIN            /* Use W$ LDAP implementation. */
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| # include <winldap.h>
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| # ifndef LDAP_VENDOR_NAME
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| #  error Your Platform SDK is NOT sufficient for LDAP support! Update your Platform SDK, or disable LDAP LDAP support!
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| # else
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| #  include <winber.h>
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| # endif
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| #else
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| #define LDAP_DEPRECATED 1       /* Be sure ldap_init() is defined. */
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| #ifdef HAVE_LBER_H
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| # include <lber.h>
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| #endif
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| # include <ldap.h>
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| #if (defined(HAVE_LDAP_SSL) && defined(HAVE_LDAP_SSL_H))
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| # include <ldap_ssl.h>
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| #endif /* HAVE_LDAP_SSL && HAVE_LDAP_SSL_H */
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| #endif
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| 
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| #ifdef HAVE_UNISTD_H
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| # include <unistd.h>
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| #endif
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| 
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| #include "urldata.h"
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| #include <curl/curl.h>
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| #include "sendf.h"
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| #include "escape.h"
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| #include "transfer.h"
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| #include "strequal.h"
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| #include "strtok.h"
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| #include "curl_ldap.h"
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| #include "memory.h"
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| #include "curl_base64.h"
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| #include "rawstr.h"
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| 
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| #define _MPRINTF_REPLACE /* use our functions only */
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| #include <curl/mprintf.h>
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| 
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| #include "memdebug.h"
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| 
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| #ifndef HAVE_LDAP_URL_PARSE
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| 
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| /* Use our own implementation. */
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| 
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| typedef struct {
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|     char   *lud_host;
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|     int     lud_port;
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|     char   *lud_dn;
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|     char  **lud_attrs;
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|     int     lud_scope;
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|     char   *lud_filter;
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|     char  **lud_exts;
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| } CURL_LDAPURLDesc;
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| 
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| #undef LDAPURLDesc
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| #define LDAPURLDesc             CURL_LDAPURLDesc
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| 
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| static int  _ldap_url_parse (const struct connectdata *conn,
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|                              LDAPURLDesc **ludp);
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| static void _ldap_free_urldesc (LDAPURLDesc *ludp);
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| 
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| #undef ldap_free_urldesc
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| #define ldap_free_urldesc       _ldap_free_urldesc
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| #endif
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| 
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| #ifdef DEBUG_LDAP
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|   #define LDAP_TRACE(x)   do { \
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|                             _ldap_trace ("%u: ", __LINE__); \
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|                             _ldap_trace x; \
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|                           } while(0)
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| 
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|   static void _ldap_trace (const char *fmt, ...);
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| #else
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|   #define LDAP_TRACE(x)   ((void)0)
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| #endif
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| 
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| 
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| static CURLcode Curl_ldap(struct connectdata *conn, bool *done);
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| 
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| /*
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|  * LDAP protocol handler.
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|  */
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| 
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| const struct Curl_handler Curl_handler_ldap = {
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|   "LDAP",                               /* scheme */
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|   ZERO_NULL,                            /* setup_connection */
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|   Curl_ldap,                            /* do_it */
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|   ZERO_NULL,                            /* done */
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|   ZERO_NULL,                            /* do_more */
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|   ZERO_NULL,                            /* connect_it */
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|   ZERO_NULL,                            /* connecting */
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|   ZERO_NULL,                            /* doing */
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|   ZERO_NULL,                            /* proto_getsock */
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|   ZERO_NULL,                            /* doing_getsock */
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|   ZERO_NULL,                            /* disconnect */
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|   PORT_LDAP,                            /* defport */
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|   PROT_LDAP                             /* protocol */
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| };
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| 
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| #ifdef HAVE_LDAP_SSL
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| /*
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|  * LDAPS protocol handler.
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|  */
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| 
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| const struct Curl_handler Curl_handler_ldaps = {
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|   "LDAPS",                              /* scheme */
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|   ZERO_NULL,                            /* setup_connection */
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|   Curl_ldap,                            /* do_it */
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|   ZERO_NULL,                            /* done */
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|   ZERO_NULL,                            /* do_more */
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|   ZERO_NULL,                            /* connect_it */
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|   ZERO_NULL,                            /* connecting */
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|   ZERO_NULL,                            /* doing */
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|   ZERO_NULL,                            /* proto_getsock */
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|   ZERO_NULL,                            /* doing_getsock */
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|   ZERO_NULL,                            /* disconnect */
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|   PORT_LDAPS,                           /* defport */
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|   PROT_LDAP | PROT_SSL                  /* protocol */
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| };
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| #endif
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| 
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| 
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| static CURLcode Curl_ldap(struct connectdata *conn, bool *done)
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| {
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|   CURLcode status = CURLE_OK;
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|   int rc = 0;
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|   LDAP *server = NULL;
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|   LDAPURLDesc *ludp = NULL;
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|   LDAPMessage *result = NULL;
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|   LDAPMessage *entryIterator;
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|   int num = 0;
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|   struct SessionHandle *data=conn->data;
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|   int ldap_proto = LDAP_VERSION3;
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|   int ldap_ssl = 0;
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|   char *val_b64;
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|   size_t val_b64_sz;
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| #ifdef LDAP_OPT_NETWORK_TIMEOUT
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|   struct timeval ldap_timeout = {10,0}; /* 10 sec connection/search timeout */
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| #endif
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| 
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|   *done = TRUE; /* unconditionally */
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|   infof(data, "LDAP local: LDAP Vendor = %s ; LDAP Version = %d\n",
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|           LDAP_VENDOR_NAME, LDAP_VENDOR_VERSION);
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|   infof(data, "LDAP local: %s\n", data->change.url);
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| 
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| #ifdef HAVE_LDAP_URL_PARSE
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|   rc = ldap_url_parse(data->change.url, &ludp);
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| #else
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|   rc = _ldap_url_parse(conn, &ludp);
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| #endif
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|   if(rc != 0) {
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|     failf(data, "LDAP local: %s", ldap_err2string(rc));
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|     status = CURLE_LDAP_INVALID_URL;
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|     goto quit;
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|   }
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| 
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|   /* Get the URL scheme ( either ldap or ldaps ) */
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|   if(Curl_raw_equal(conn->protostr, "LDAPS"))
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|     ldap_ssl = 1;
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|   infof(data, "LDAP local: trying to establish %s connection\n",
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|           ldap_ssl ? "encrypted" : "cleartext");
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| 
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| #ifdef LDAP_OPT_NETWORK_TIMEOUT
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|   ldap_set_option(NULL, LDAP_OPT_NETWORK_TIMEOUT, &ldap_timeout);
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| #endif
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|   ldap_set_option(NULL, LDAP_OPT_PROTOCOL_VERSION, &ldap_proto);
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| 
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|   if(ldap_ssl) {
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| #ifdef HAVE_LDAP_SSL
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| #ifdef CURL_LDAP_WIN
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|     /* Win32 LDAP SDK doesnt support insecure mode without CA! */
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|     server = ldap_sslinit(conn->host.name, (int)conn->port, 1);
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|     ldap_set_option(server, LDAP_OPT_SSL, LDAP_OPT_ON);
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| #else
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|     int ldap_option;
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|     char* ldap_ca = data->set.str[STRING_SSL_CAFILE];
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| #if defined(CURL_HAS_NOVELL_LDAPSDK)
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|     rc = ldapssl_client_init(NULL, NULL);
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|     if(rc != LDAP_SUCCESS) {
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|       failf(data, "LDAP local: ldapssl_client_init %s", ldap_err2string(rc));
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|       status = CURLE_SSL_CERTPROBLEM;
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|       goto quit;
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|     }
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|     if(data->set.ssl.verifypeer) {
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|       /* Novell SDK supports DER or BASE64 files. */
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|       int cert_type = LDAPSSL_CERT_FILETYPE_B64;
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|       if((data->set.str[STRING_CERT_TYPE]) &&
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|          (Curl_raw_equal(data->set.str[STRING_CERT_TYPE], "DER")))
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|         cert_type = LDAPSSL_CERT_FILETYPE_DER;
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|       if(!ldap_ca) {
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|         failf(data, "LDAP local: ERROR %s CA cert not set!",
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|               (cert_type == LDAPSSL_CERT_FILETYPE_DER ? "DER" : "PEM"));
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|         status = CURLE_SSL_CERTPROBLEM;
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|         goto quit;
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|       }
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|       infof(data, "LDAP local: using %s CA cert '%s'\n",
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|               (cert_type == LDAPSSL_CERT_FILETYPE_DER ? "DER" : "PEM"),
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|               ldap_ca);
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|       rc = ldapssl_add_trusted_cert(ldap_ca, cert_type);
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|       if(rc != LDAP_SUCCESS) {
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|         failf(data, "LDAP local: ERROR setting %s CA cert: %s",
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|                 (cert_type == LDAPSSL_CERT_FILETYPE_DER ? "DER" : "PEM"),
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|                 ldap_err2string(rc));
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|         status = CURLE_SSL_CERTPROBLEM;
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|         goto quit;
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|       }
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|       ldap_option = LDAPSSL_VERIFY_SERVER;
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|     } else {
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|       ldap_option = LDAPSSL_VERIFY_NONE;
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|     }
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|     rc = ldapssl_set_verify_mode(ldap_option);
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|     if(rc != LDAP_SUCCESS) {
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|       failf(data, "LDAP local: ERROR setting cert verify mode: %s",
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|               ldap_err2string(rc));
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|       status = CURLE_SSL_CERTPROBLEM;
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|       goto quit;
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|     }
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|     server = ldapssl_init(conn->host.name, (int)conn->port, 1);
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|     if(server == NULL) {
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|       failf(data, "LDAP local: Cannot connect to %s:%d",
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|               conn->host.name, conn->port);
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|       status = CURLE_COULDNT_CONNECT;
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|       goto quit;
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|     }
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| #elif defined(LDAP_OPT_X_TLS)
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|     if(data->set.ssl.verifypeer) {
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|       /* OpenLDAP SDK supports BASE64 files. */
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|       if((data->set.str[STRING_CERT_TYPE]) &&
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|          (!Curl_raw_equal(data->set.str[STRING_CERT_TYPE], "PEM"))) {
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|         failf(data, "LDAP local: ERROR OpenLDAP does only support PEM cert-type!");
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|         status = CURLE_SSL_CERTPROBLEM;
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|         goto quit;
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|       }
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|       if(!ldap_ca) {
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|         failf(data, "LDAP local: ERROR PEM CA cert not set!");
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|         status = CURLE_SSL_CERTPROBLEM;
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|         goto quit;
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|       }
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|       infof(data, "LDAP local: using PEM CA cert: %s\n", ldap_ca);
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|       rc = ldap_set_option(NULL, LDAP_OPT_X_TLS_CACERTFILE, ldap_ca);
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|       if(rc != LDAP_SUCCESS) {
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|         failf(data, "LDAP local: ERROR setting PEM CA cert: %s",
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|                 ldap_err2string(rc));
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|         status = CURLE_SSL_CERTPROBLEM;
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|         goto quit;
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|       }
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|       ldap_option = LDAP_OPT_X_TLS_DEMAND;
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|     } else {
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|       ldap_option = LDAP_OPT_X_TLS_NEVER;
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|     }
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|     rc = ldap_set_option(NULL, LDAP_OPT_X_TLS_REQUIRE_CERT, &ldap_option);
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|     if(rc != LDAP_SUCCESS) {
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|       failf(data, "LDAP local: ERROR setting cert verify mode: %s",
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|               ldap_err2string(rc));
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|       status = CURLE_SSL_CERTPROBLEM;
 | |
|       goto quit;
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|     }
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|     server = ldap_init(conn->host.name, (int)conn->port);
 | |
|     if(server == NULL) {
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|       failf(data, "LDAP local: Cannot connect to %s:%d",
 | |
|               conn->host.name, conn->port);
 | |
|       status = CURLE_COULDNT_CONNECT;
 | |
|       goto quit;
 | |
|     }
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|     ldap_option = LDAP_OPT_X_TLS_HARD;
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|     rc = ldap_set_option(server, LDAP_OPT_X_TLS, &ldap_option);
 | |
|     if(rc != LDAP_SUCCESS) {
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|       failf(data, "LDAP local: ERROR setting SSL/TLS mode: %s",
 | |
|               ldap_err2string(rc));
 | |
|       status = CURLE_SSL_CERTPROBLEM;
 | |
|       goto quit;
 | |
|     }
 | |
| /*
 | |
|     rc = ldap_start_tls_s(server, NULL, NULL);
 | |
|     if(rc != LDAP_SUCCESS) {
 | |
|       failf(data, "LDAP local: ERROR starting SSL/TLS mode: %s",
 | |
|               ldap_err2string(rc));
 | |
|       status = CURLE_SSL_CERTPROBLEM;
 | |
|       goto quit;
 | |
|     }
 | |
| */
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| #else
 | |
|     /* we should probably never come up to here since configure
 | |
|        should check in first place if we can support LDAP SSL/TLS */
 | |
|     failf(data, "LDAP local: SSL/TLS not supported with this version "
 | |
|             "of the OpenLDAP toolkit\n");
 | |
|     status = CURLE_SSL_CERTPROBLEM;
 | |
|     goto quit;
 | |
| #endif
 | |
| #endif
 | |
| #endif /* CURL_LDAP_USE_SSL */
 | |
|   } else {
 | |
|     server = ldap_init(conn->host.name, (int)conn->port);
 | |
|     if(server == NULL) {
 | |
|       failf(data, "LDAP local: Cannot connect to %s:%d",
 | |
|               conn->host.name, conn->port);
 | |
|       status = CURLE_COULDNT_CONNECT;
 | |
|       goto quit;
 | |
|     }
 | |
|   }
 | |
| #ifdef CURL_LDAP_WIN
 | |
|   ldap_set_option(server, LDAP_OPT_PROTOCOL_VERSION, &ldap_proto);
 | |
| #endif
 | |
| 
 | |
|   rc = ldap_simple_bind_s(server,
 | |
|                           conn->bits.user_passwd ? conn->user : NULL,
 | |
|                           conn->bits.user_passwd ? conn->passwd : NULL);
 | |
|   if(!ldap_ssl && rc != 0) {
 | |
|     ldap_proto = LDAP_VERSION2;
 | |
|     ldap_set_option(server, LDAP_OPT_PROTOCOL_VERSION, &ldap_proto);
 | |
|     rc = ldap_simple_bind_s(server,
 | |
|                             conn->bits.user_passwd ? conn->user : NULL,
 | |
|                             conn->bits.user_passwd ? conn->passwd : NULL);
 | |
|   }
 | |
|   if(rc != 0) {
 | |
|      failf(data, "LDAP local: ldap_simple_bind_s %s", ldap_err2string(rc));
 | |
|      status = CURLE_LDAP_CANNOT_BIND;
 | |
|      goto quit;
 | |
|   }
 | |
| 
 | |
|   rc = ldap_search_s(server, ludp->lud_dn, ludp->lud_scope,
 | |
|                      ludp->lud_filter, ludp->lud_attrs, 0, &result);
 | |
| 
 | |
|   if(rc != 0 && rc != LDAP_SIZELIMIT_EXCEEDED) {
 | |
|     failf(data, "LDAP remote: %s", ldap_err2string(rc));
 | |
|     status = CURLE_LDAP_SEARCH_FAILED;
 | |
|     goto quit;
 | |
|   }
 | |
| 
 | |
|   for(num = 0, entryIterator = ldap_first_entry(server, result);
 | |
|       entryIterator;
 | |
|       entryIterator = ldap_next_entry(server, entryIterator), num++)
 | |
|   {
 | |
|     BerElement *ber = NULL;
 | |
|     char  *attribute;       /*! suspicious that this isn't 'const' */
 | |
|     char  *dn = ldap_get_dn(server, entryIterator);
 | |
|     int i;
 | |
| 
 | |
|     Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"DN: ", 4);
 | |
|     Curl_client_write(conn, CLIENTWRITE_BODY, (char *)dn, 0);
 | |
|     Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\n", 1);
 | |
| 
 | |
|     for (attribute = ldap_first_attribute(server, entryIterator, &ber);
 | |
|          attribute;
 | |
|          attribute = ldap_next_attribute(server, entryIterator, ber))
 | |
|     {
 | |
|       BerValue **vals = ldap_get_values_len(server, entryIterator, attribute);
 | |
| 
 | |
|       if(vals != NULL)
 | |
|       {
 | |
|         for (i = 0; (vals[i] != NULL); i++)
 | |
|         {
 | |
|           Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\t", 1);
 | |
|           Curl_client_write(conn, CLIENTWRITE_BODY, (char *) attribute, 0);
 | |
|           Curl_client_write(conn, CLIENTWRITE_BODY, (char *)": ", 2);
 | |
|           if((strlen(attribute) > 7) &&
 | |
|               (strcmp(";binary",
 | |
|                       (char *)attribute +
 | |
|                       (strlen((char *)attribute) - 7)) == 0)) {
 | |
|             /* Binary attribute, encode to base64. */
 | |
|             val_b64_sz = Curl_base64_encode(conn->data,
 | |
|                                             vals[i]->bv_val,
 | |
|                                             vals[i]->bv_len,
 | |
|                                             &val_b64);
 | |
|             if(val_b64_sz > 0) {
 | |
|               Curl_client_write(conn, CLIENTWRITE_BODY, val_b64, val_b64_sz);
 | |
|               free(val_b64);
 | |
|             }
 | |
|           } else
 | |
|             Curl_client_write(conn, CLIENTWRITE_BODY, vals[i]->bv_val,
 | |
|                               vals[i]->bv_len);
 | |
|           Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\n", 0);
 | |
|         }
 | |
| 
 | |
|         /* Free memory used to store values */
 | |
|         ldap_value_free_len(vals);
 | |
|       }
 | |
|       Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\n", 1);
 | |
| 
 | |
|       ldap_memfree(attribute);
 | |
|     }
 | |
|     ldap_memfree(dn);
 | |
|     if(ber)
 | |
|        ber_free(ber, 0);
 | |
|   }
 | |
| 
 | |
| quit:
 | |
|   if(result) {
 | |
|     ldap_msgfree(result);
 | |
|     LDAP_TRACE (("Received %d entries\n", num));
 | |
|   }
 | |
|   if(rc == LDAP_SIZELIMIT_EXCEEDED)
 | |
|     infof(data, "There are more than %d entries\n", num);
 | |
|   if(ludp)
 | |
|     ldap_free_urldesc(ludp);
 | |
|   if(server)
 | |
|     ldap_unbind_s(server);
 | |
| #if defined(HAVE_LDAP_SSL) && defined(CURL_HAS_NOVELL_LDAPSDK)
 | |
|   if(ldap_ssl)
 | |
|     ldapssl_client_deinit();
 | |
| #endif /* HAVE_LDAP_SSL && CURL_HAS_NOVELL_LDAPSDK */
 | |
| 
 | |
|   /* no data to transfer */
 | |
|   Curl_setup_transfer(conn, -1, -1, FALSE, NULL, -1, NULL);
 | |
|   conn->bits.close = TRUE;
 | |
| 
 | |
|   return status;
 | |
| }
 | |
| 
 | |
| #ifdef DEBUG_LDAP
 | |
| static void _ldap_trace (const char *fmt, ...)
 | |
| {
 | |
|   static int do_trace = -1;
 | |
|   va_list args;
 | |
| 
 | |
|   if(do_trace == -1) {
 | |
|     const char *env = getenv("CURL_TRACE");
 | |
|     do_trace = (env && atoi(env) > 0);
 | |
|   }
 | |
|   if(!do_trace)
 | |
|     return;
 | |
| 
 | |
|   va_start (args, fmt);
 | |
|   vfprintf (stderr, fmt, args);
 | |
|   va_end (args);
 | |
| }
 | |
| #endif
 | |
| 
 | |
| #ifndef HAVE_LDAP_URL_PARSE
 | |
| 
 | |
| /*
 | |
|  * Return scope-value for a scope-string.
 | |
|  */
 | |
| static int str2scope (const char *p)
 | |
| {
 | |
|   if(!stricmp(p, "one"))
 | |
|      return LDAP_SCOPE_ONELEVEL;
 | |
|   if(!stricmp(p, "onetree"))
 | |
|      return LDAP_SCOPE_ONELEVEL;
 | |
|   if(!stricmp(p, "base"))
 | |
|      return LDAP_SCOPE_BASE;
 | |
|   if(!stricmp(p, "sub"))
 | |
|      return LDAP_SCOPE_SUBTREE;
 | |
|   if(!stricmp( p, "subtree"))
 | |
|      return LDAP_SCOPE_SUBTREE;
 | |
|   return (-1);
 | |
| }
 | |
| 
 | |
| /*
 | |
|  * Split 'str' into strings separated by commas.
 | |
|  * Note: res[] points into 'str'.
 | |
|  */
 | |
| static char **split_str (char *str)
 | |
| {
 | |
|   char **res, *lasts, *s;
 | |
|   int  i;
 | |
| 
 | |
|   for (i = 2, s = strchr(str,','); s; i++)
 | |
|      s = strchr(++s,',');
 | |
| 
 | |
|   res = calloc(i, sizeof(char*));
 | |
|   if(!res)
 | |
|     return NULL;
 | |
| 
 | |
|   for (i = 0, s = strtok_r(str, ",", &lasts); s;
 | |
|        s = strtok_r(NULL, ",", &lasts), i++)
 | |
|     res[i] = s;
 | |
|   return res;
 | |
| }
 | |
| 
 | |
| /*
 | |
|  * Unescape the LDAP-URL components
 | |
|  */
 | |
| static bool unescape_elements (void *data, LDAPURLDesc *ludp)
 | |
| {
 | |
|   int i;
 | |
| 
 | |
|   if(ludp->lud_filter) {
 | |
|     ludp->lud_filter = curl_easy_unescape(data, ludp->lud_filter, 0, NULL);
 | |
|     if(!ludp->lud_filter)
 | |
|        return (FALSE);
 | |
|   }
 | |
| 
 | |
|   for (i = 0; ludp->lud_attrs && ludp->lud_attrs[i]; i++) {
 | |
|     ludp->lud_attrs[i] = curl_easy_unescape(data, ludp->lud_attrs[i], 0, NULL);
 | |
|     if(!ludp->lud_attrs[i])
 | |
|        return (FALSE);
 | |
|   }
 | |
| 
 | |
|   for (i = 0; ludp->lud_exts && ludp->lud_exts[i]; i++) {
 | |
|     ludp->lud_exts[i] = curl_easy_unescape(data, ludp->lud_exts[i], 0, NULL);
 | |
|     if(!ludp->lud_exts[i])
 | |
|        return (FALSE);
 | |
|   }
 | |
| 
 | |
|   if(ludp->lud_dn) {
 | |
|     char *dn = ludp->lud_dn;
 | |
|     char *new_dn = curl_easy_unescape(data, dn, 0, NULL);
 | |
| 
 | |
|     free(dn);
 | |
|     ludp->lud_dn = new_dn;
 | |
|     if(!new_dn)
 | |
|        return (FALSE);
 | |
|   }
 | |
|   return (TRUE);
 | |
| }
 | |
| 
 | |
| /*
 | |
|  * Break apart the pieces of an LDAP URL.
 | |
|  * Syntax:
 | |
|  *   ldap://<hostname>:<port>/<base_dn>?<attributes>?<scope>?<filter>?<ext>
 | |
|  *
 | |
|  * <hostname> already known from 'conn->host.name'.
 | |
|  * <port>     already known from 'conn->remote_port'.
 | |
|  * extract the rest from 'conn->data->state.path+1'. All fields are optional.
 | |
|  * e.g.
 | |
|  *   ldap://<hostname>:<port>/?<attributes>?<scope>?<filter>
 | |
|  * yields ludp->lud_dn = "".
 | |
|  *
 | |
|  * Ref. http://developer.netscape.com/docs/manuals/dirsdk/csdk30/url.htm#2831915
 | |
|  */
 | |
| static int _ldap_url_parse2 (const struct connectdata *conn, LDAPURLDesc *ludp)
 | |
| {
 | |
|   char *p, *q;
 | |
|   int i;
 | |
| 
 | |
|   if(!conn->data ||
 | |
|       !conn->data->state.path ||
 | |
|       conn->data->state.path[0] != '/' ||
 | |
|       !checkprefix(conn->protostr, conn->data->change.url))
 | |
|     return LDAP_INVALID_SYNTAX;
 | |
| 
 | |
|   ludp->lud_scope = LDAP_SCOPE_BASE;
 | |
|   ludp->lud_port  = conn->remote_port;
 | |
|   ludp->lud_host  = conn->host.name;
 | |
| 
 | |
|   /* parse DN (Distinguished Name).
 | |
|    */
 | |
|   ludp->lud_dn = strdup(conn->data->state.path+1);
 | |
|   if(!ludp->lud_dn)
 | |
|     return LDAP_NO_MEMORY;
 | |
| 
 | |
|   p = strchr(ludp->lud_dn, '?');
 | |
|   LDAP_TRACE (("DN '%.*s'\n", p ? (size_t)(p-ludp->lud_dn) :
 | |
|                strlen(ludp->lud_dn), ludp->lud_dn));
 | |
| 
 | |
|   if(!p)
 | |
|     goto success;
 | |
| 
 | |
|   *p++ = '\0';
 | |
| 
 | |
|   /* parse attributes. skip "??".
 | |
|    */
 | |
|   q = strchr(p, '?');
 | |
|   if(q)
 | |
|     *q++ = '\0';
 | |
| 
 | |
|   if(*p && *p != '?') {
 | |
|     ludp->lud_attrs = split_str(p);
 | |
|     if(!ludp->lud_attrs)
 | |
|       return LDAP_NO_MEMORY;
 | |
| 
 | |
|     for (i = 0; ludp->lud_attrs[i]; i++)
 | |
|       LDAP_TRACE (("attr[%d] '%s'\n", i, ludp->lud_attrs[i]));
 | |
|   }
 | |
| 
 | |
|   p = q;
 | |
|   if(!p)
 | |
|     goto success;
 | |
| 
 | |
|   /* parse scope. skip "??"
 | |
|    */
 | |
|   q = strchr(p, '?');
 | |
|   if(q)
 | |
|     *q++ = '\0';
 | |
| 
 | |
|   if(*p && *p != '?') {
 | |
|     ludp->lud_scope = str2scope(p);
 | |
|     if(ludp->lud_scope == -1)
 | |
|       return LDAP_INVALID_SYNTAX;
 | |
|     LDAP_TRACE (("scope %d\n", ludp->lud_scope));
 | |
|   }
 | |
| 
 | |
|   p = q;
 | |
|   if(!p)
 | |
|     goto success;
 | |
| 
 | |
|   /* parse filter
 | |
|    */
 | |
|   q = strchr(p, '?');
 | |
|   if(q)
 | |
|     *q++ = '\0';
 | |
|   if(!*p)
 | |
|     return LDAP_INVALID_SYNTAX;
 | |
| 
 | |
|   ludp->lud_filter = p;
 | |
|   LDAP_TRACE (("filter '%s'\n", ludp->lud_filter));
 | |
| 
 | |
|   p = q;
 | |
|   if(!p)
 | |
|     goto success;
 | |
| 
 | |
|   /* parse extensions
 | |
|    */
 | |
|   ludp->lud_exts = split_str(p);
 | |
|   if(!ludp->lud_exts)
 | |
|     return LDAP_NO_MEMORY;
 | |
| 
 | |
|   for (i = 0; ludp->lud_exts[i]; i++)
 | |
|     LDAP_TRACE (("exts[%d] '%s'\n", i, ludp->lud_exts[i]));
 | |
| 
 | |
|   success:
 | |
|   if(!unescape_elements(conn->data, ludp))
 | |
|     return LDAP_NO_MEMORY;
 | |
|   return LDAP_SUCCESS;
 | |
| }
 | |
| 
 | |
| static int _ldap_url_parse (const struct connectdata *conn,
 | |
|                             LDAPURLDesc **ludpp)
 | |
| {
 | |
|   LDAPURLDesc *ludp = calloc(sizeof(*ludp), 1);
 | |
|   int rc;
 | |
| 
 | |
|   *ludpp = NULL;
 | |
|   if(!ludp)
 | |
|      return LDAP_NO_MEMORY;
 | |
| 
 | |
|   rc = _ldap_url_parse2 (conn, ludp);
 | |
|   if(rc != LDAP_SUCCESS) {
 | |
|     _ldap_free_urldesc(ludp);
 | |
|     ludp = NULL;
 | |
|   }
 | |
|   *ludpp = ludp;
 | |
|   return (rc);
 | |
| }
 | |
| 
 | |
| static void _ldap_free_urldesc (LDAPURLDesc *ludp)
 | |
| {
 | |
|   int i;
 | |
| 
 | |
|   if(!ludp)
 | |
|      return;
 | |
| 
 | |
|   if(ludp->lud_dn)
 | |
|      free(ludp->lud_dn);
 | |
| 
 | |
|   if(ludp->lud_filter)
 | |
|      free(ludp->lud_filter);
 | |
| 
 | |
|   if(ludp->lud_attrs) {
 | |
|     for (i = 0; ludp->lud_attrs[i]; i++)
 | |
|        free(ludp->lud_attrs[i]);
 | |
|     free(ludp->lud_attrs);
 | |
|   }
 | |
| 
 | |
|   if(ludp->lud_exts) {
 | |
|     for (i = 0; ludp->lud_exts[i]; i++)
 | |
|        free(ludp->lud_exts[i]);
 | |
|     free(ludp->lud_exts);
 | |
|   }
 | |
|   free (ludp);
 | |
| }
 | |
| #endif  /* !HAVE_LDAP_URL_PARSE */
 | |
| #endif  /* CURL_DISABLE_LDAP */
 |