1014 lines
26 KiB
C
Executable File
1014 lines
26 KiB
C
Executable File
/***************************************************************************
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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 - 2015, 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 https://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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***************************************************************************/
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#include "curl_setup.h"
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#if !defined(CURL_DISABLE_LDAP) && !defined(USE_OPENLDAP)
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/*
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* Notice that USE_OPENLDAP is only a source code selection switch. When
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* libcurl is built with USE_OPENLDAP defined the libcurl source code that
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* gets compiled is the code from openldap.c, otherwise the code that gets
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* compiled is the code from ldap.c.
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*
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* When USE_OPENLDAP is defined a recent version of the OpenLDAP library
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* might be required for compilation and runtime. In order to use ancient
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* OpenLDAP library versions, USE_OPENLDAP shall not be defined.
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*/
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#ifdef USE_WIN32_LDAP /* Use Windows 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! \
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Update your Platform SDK, or disable 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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/* These are macros in both <wincrypt.h> (in above <winldap.h>) and typedefs
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* in BoringSSL's <openssl/x509.h>
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*/
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#ifdef HAVE_BORINGSSL
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# undef X509_NAME
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# undef X509_CERT_PAIR
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# undef X509_EXTENSIONS
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#endif
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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 "progress.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 "curl_multibyte.h"
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#include "curl_base64.h"
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#include "rawstr.h"
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#include "connect.h"
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#include "curl_printf.h"
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/* The last #include files should be: */
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#include "curl_memory.h"
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#include "memdebug.h"
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#ifndef HAVE_LDAP_URL_PARSE
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/* Use our own implementation. */
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typedef struct {
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char *lud_host;
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int lud_port;
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#if defined(USE_WIN32_LDAP)
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TCHAR *lud_dn;
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TCHAR **lud_attrs;
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#else
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char *lud_dn;
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char **lud_attrs;
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#endif
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int lud_scope;
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#if defined(USE_WIN32_LDAP)
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TCHAR *lud_filter;
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#else
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char *lud_filter;
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#endif
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char **lud_exts;
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size_t lud_attrs_dups; /* how many were dup'ed, this field is not in the
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"real" struct so can only be used in code
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without HAVE_LDAP_URL_PARSE defined */
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} CURL_LDAPURLDesc;
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#undef LDAPURLDesc
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#define LDAPURLDesc CURL_LDAPURLDesc
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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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#undef ldap_free_urldesc
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#define ldap_free_urldesc _ldap_free_urldesc
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#endif
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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_FALSE
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static void _ldap_trace (const char *fmt, ...);
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#else
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#define LDAP_TRACE(x) Curl_nop_stmt
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#endif
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static CURLcode Curl_ldap(struct connectdata *conn, bool *done);
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/*
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* LDAP protocol handler.
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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, /* domore_getsock */
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ZERO_NULL, /* perform_getsock */
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ZERO_NULL, /* disconnect */
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ZERO_NULL, /* readwrite */
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PORT_LDAP, /* defport */
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CURLPROTO_LDAP, /* protocol */
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PROTOPT_NONE /* flags */
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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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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, /* domore_getsock */
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ZERO_NULL, /* perform_getsock */
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ZERO_NULL, /* disconnect */
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ZERO_NULL, /* readwrite */
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PORT_LDAPS, /* defport */
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CURLPROTO_LDAPS, /* protocol */
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PROTOPT_SSL /* flags */
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};
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#endif
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static CURLcode Curl_ldap(struct connectdata *conn, bool *done)
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{
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CURLcode result = 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 *ldapmsg = 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 = NULL;
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size_t val_b64_sz = 0;
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curl_off_t dlsize = 0;
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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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#if defined(USE_WIN32_LDAP)
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TCHAR *host = NULL;
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TCHAR *user = NULL;
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TCHAR *passwd = NULL;
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#else
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char *host = NULL;
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char *user = NULL;
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char *passwd = NULL;
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#endif
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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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#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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result = CURLE_LDAP_INVALID_URL;
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goto quit;
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}
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/* Get the URL scheme ( either ldap or ldaps ) */
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if(conn->given->flags & PROTOPT_SSL)
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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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#if defined(USE_WIN32_LDAP)
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host = Curl_convert_UTF8_to_tchar(conn->host.name);
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if(!host) {
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result = CURLE_OUT_OF_MEMORY;
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goto quit;
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}
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if(conn->bits.user_passwd) {
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user = Curl_convert_UTF8_to_tchar(conn->user);
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passwd = Curl_convert_UTF8_to_tchar(conn->passwd);
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if(!user || !passwd) {
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result = CURLE_OUT_OF_MEMORY;
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goto quit;
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}
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}
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#else
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host = conn->host.name;
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if(conn->bits.user_passwd) {
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user = conn->user;
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passwd = conn->passwd;
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}
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#endif
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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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if(ldap_ssl) {
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#ifdef HAVE_LDAP_SSL
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#ifdef USE_WIN32_LDAP
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/* Win32 LDAP SDK doesn't support insecure mode without CA! */
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server = ldap_sslinit(host, (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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result = 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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result = 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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result = 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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}
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else
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ldap_option = LDAPSSL_VERIFY_NONE;
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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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result = CURLE_SSL_CERTPROBLEM;
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goto quit;
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}
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server = ldapssl_init(host, (int)conn->port, 1);
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if(server == NULL) {
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failf(data, "LDAP local: Cannot connect to %s:%ld",
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conn->host.dispname, conn->port);
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result = 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 only supports PEM cert-type!");
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result = 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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result = 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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result = 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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}
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else
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ldap_option = LDAP_OPT_X_TLS_NEVER;
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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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result = CURLE_SSL_CERTPROBLEM;
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goto quit;
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}
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server = ldap_init(host, (int)conn->port);
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if(server == NULL) {
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failf(data, "LDAP local: Cannot connect to %s:%ld",
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conn->host.dispname, conn->port);
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result = CURLE_COULDNT_CONNECT;
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goto quit;
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}
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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);
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if(rc != LDAP_SUCCESS) {
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failf(data, "LDAP local: ERROR setting SSL/TLS mode: %s",
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ldap_err2string(rc));
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result = CURLE_SSL_CERTPROBLEM;
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goto quit;
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}
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/*
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rc = ldap_start_tls_s(server, NULL, NULL);
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if(rc != LDAP_SUCCESS) {
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failf(data, "LDAP local: ERROR starting SSL/TLS mode: %s",
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ldap_err2string(rc));
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result = CURLE_SSL_CERTPROBLEM;
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goto quit;
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}
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*/
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#else
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/* we should probably never come up to here since configure
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should check in first place if we can support LDAP SSL/TLS */
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failf(data, "LDAP local: SSL/TLS not supported with this version "
|
|
"of the OpenLDAP toolkit\n");
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result = CURLE_SSL_CERTPROBLEM;
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goto quit;
|
|
#endif
|
|
#endif
|
|
#endif /* CURL_LDAP_USE_SSL */
|
|
}
|
|
else {
|
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server = ldap_init(host, (int)conn->port);
|
|
if(server == NULL) {
|
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failf(data, "LDAP local: Cannot connect to %s:%ld",
|
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conn->host.dispname, conn->port);
|
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result = CURLE_COULDNT_CONNECT;
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goto quit;
|
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}
|
|
}
|
|
#ifdef USE_WIN32_LDAP
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ldap_set_option(server, LDAP_OPT_PROTOCOL_VERSION, &ldap_proto);
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#endif
|
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|
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rc = ldap_simple_bind_s(server, user, passwd);
|
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if(!ldap_ssl && rc != 0) {
|
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ldap_proto = LDAP_VERSION2;
|
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ldap_set_option(server, LDAP_OPT_PROTOCOL_VERSION, &ldap_proto);
|
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rc = ldap_simple_bind_s(server, user, passwd);
|
|
}
|
|
if(rc != 0) {
|
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failf(data, "LDAP local: ldap_simple_bind_s %s", ldap_err2string(rc));
|
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result = CURLE_LDAP_CANNOT_BIND;
|
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goto quit;
|
|
}
|
|
|
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rc = ldap_search_s(server, ludp->lud_dn, ludp->lud_scope,
|
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ludp->lud_filter, ludp->lud_attrs, 0, &ldapmsg);
|
|
|
|
if(rc != 0 && rc != LDAP_SIZELIMIT_EXCEEDED) {
|
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failf(data, "LDAP remote: %s", ldap_err2string(rc));
|
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result = CURLE_LDAP_SEARCH_FAILED;
|
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goto quit;
|
|
}
|
|
|
|
for(num = 0, entryIterator = ldap_first_entry(server, ldapmsg);
|
|
entryIterator;
|
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entryIterator = ldap_next_entry(server, entryIterator), num++) {
|
|
BerElement *ber = NULL;
|
|
#if defined(USE_WIN32_LDAP)
|
|
TCHAR *attribute;
|
|
#else
|
|
char *attribute; /*! suspicious that this isn't 'const' */
|
|
#endif
|
|
int i;
|
|
|
|
/* Get the DN and write it to the client */
|
|
{
|
|
char *name;
|
|
size_t name_len;
|
|
#if defined(USE_WIN32_LDAP)
|
|
TCHAR *dn = ldap_get_dn(server, entryIterator);
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name = Curl_convert_tchar_to_UTF8(dn);
|
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if(!name) {
|
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ldap_memfree(dn);
|
|
|
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result = CURLE_OUT_OF_MEMORY;
|
|
|
|
goto quit;
|
|
}
|
|
#else
|
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char *dn = name = ldap_get_dn(server, entryIterator);
|
|
#endif
|
|
name_len = strlen(name);
|
|
|
|
result = Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"DN: ", 4);
|
|
if(result) {
|
|
#if defined(USE_WIN32_LDAP)
|
|
Curl_unicodefree(name);
|
|
#endif
|
|
ldap_memfree(dn);
|
|
|
|
goto quit;
|
|
}
|
|
|
|
result = Curl_client_write(conn, CLIENTWRITE_BODY, (char *) name,
|
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name_len);
|
|
if(result) {
|
|
#if defined(USE_WIN32_LDAP)
|
|
Curl_unicodefree(name);
|
|
#endif
|
|
ldap_memfree(dn);
|
|
|
|
goto quit;
|
|
}
|
|
|
|
result = Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\n", 1);
|
|
if(result) {
|
|
#if defined(USE_WIN32_LDAP)
|
|
Curl_unicodefree(name);
|
|
#endif
|
|
ldap_memfree(dn);
|
|
|
|
goto quit;
|
|
}
|
|
|
|
dlsize += name_len + 5;
|
|
|
|
#if defined(USE_WIN32_LDAP)
|
|
Curl_unicodefree(name);
|
|
#endif
|
|
ldap_memfree(dn);
|
|
}
|
|
|
|
/* Get the attributes and write them to the client */
|
|
for(attribute = ldap_first_attribute(server, entryIterator, &ber);
|
|
attribute;
|
|
attribute = ldap_next_attribute(server, entryIterator, ber)) {
|
|
BerValue **vals;
|
|
size_t attr_len;
|
|
#if defined(USE_WIN32_LDAP)
|
|
char *attr = Curl_convert_tchar_to_UTF8(attribute);
|
|
if(!attr) {
|
|
if(ber)
|
|
ber_free(ber, 0);
|
|
|
|
result = CURLE_OUT_OF_MEMORY;
|
|
|
|
goto quit;
|
|
}
|
|
#else
|
|
char *attr = attribute;
|
|
#endif
|
|
attr_len = strlen(attr);
|
|
|
|
vals = ldap_get_values_len(server, entryIterator, attribute);
|
|
if(vals != NULL) {
|
|
for(i = 0; (vals[i] != NULL); i++) {
|
|
result = Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\t", 1);
|
|
if(result) {
|
|
ldap_value_free_len(vals);
|
|
#if defined(USE_WIN32_LDAP)
|
|
Curl_unicodefree(attr);
|
|
#endif
|
|
ldap_memfree(attribute);
|
|
if(ber)
|
|
ber_free(ber, 0);
|
|
|
|
goto quit;
|
|
}
|
|
|
|
result = Curl_client_write(conn, CLIENTWRITE_BODY,
|
|
(char *) attr, attr_len);
|
|
if(result) {
|
|
ldap_value_free_len(vals);
|
|
#if defined(USE_WIN32_LDAP)
|
|
Curl_unicodefree(attr);
|
|
#endif
|
|
ldap_memfree(attribute);
|
|
if(ber)
|
|
ber_free(ber, 0);
|
|
|
|
goto quit;
|
|
}
|
|
|
|
result = Curl_client_write(conn, CLIENTWRITE_BODY, (char *)": ", 2);
|
|
if(result) {
|
|
ldap_value_free_len(vals);
|
|
#if defined(USE_WIN32_LDAP)
|
|
Curl_unicodefree(attr);
|
|
#endif
|
|
ldap_memfree(attribute);
|
|
if(ber)
|
|
ber_free(ber, 0);
|
|
|
|
goto quit;
|
|
}
|
|
|
|
dlsize += attr_len + 3;
|
|
|
|
if((attr_len > 7) &&
|
|
(strcmp(";binary", (char *) attr + (attr_len - 7)) == 0)) {
|
|
/* Binary attribute, encode to base64. */
|
|
result = Curl_base64_encode(data,
|
|
vals[i]->bv_val,
|
|
vals[i]->bv_len,
|
|
&val_b64,
|
|
&val_b64_sz);
|
|
if(result) {
|
|
ldap_value_free_len(vals);
|
|
#if defined(USE_WIN32_LDAP)
|
|
Curl_unicodefree(attr);
|
|
#endif
|
|
ldap_memfree(attribute);
|
|
if(ber)
|
|
ber_free(ber, 0);
|
|
|
|
goto quit;
|
|
}
|
|
|
|
if(val_b64_sz > 0) {
|
|
result = Curl_client_write(conn, CLIENTWRITE_BODY, val_b64,
|
|
val_b64_sz);
|
|
free(val_b64);
|
|
if(result) {
|
|
ldap_value_free_len(vals);
|
|
#if defined(USE_WIN32_LDAP)
|
|
Curl_unicodefree(attr);
|
|
#endif
|
|
ldap_memfree(attribute);
|
|
if(ber)
|
|
ber_free(ber, 0);
|
|
|
|
goto quit;
|
|
}
|
|
|
|
dlsize += val_b64_sz;
|
|
}
|
|
}
|
|
else {
|
|
result = Curl_client_write(conn, CLIENTWRITE_BODY, vals[i]->bv_val,
|
|
vals[i]->bv_len);
|
|
if(result) {
|
|
ldap_value_free_len(vals);
|
|
#if defined(USE_WIN32_LDAP)
|
|
Curl_unicodefree(attr);
|
|
#endif
|
|
ldap_memfree(attribute);
|
|
if(ber)
|
|
ber_free(ber, 0);
|
|
|
|
goto quit;
|
|
}
|
|
|
|
dlsize += vals[i]->bv_len;
|
|
}
|
|
|
|
result = Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\n", 1);
|
|
if(result) {
|
|
ldap_value_free_len(vals);
|
|
#if defined(USE_WIN32_LDAP)
|
|
Curl_unicodefree(attr);
|
|
#endif
|
|
ldap_memfree(attribute);
|
|
if(ber)
|
|
ber_free(ber, 0);
|
|
|
|
goto quit;
|
|
}
|
|
|
|
dlsize++;
|
|
}
|
|
|
|
/* Free memory used to store values */
|
|
ldap_value_free_len(vals);
|
|
}
|
|
|
|
/* Free the attribute as we are done with it */
|
|
#if defined(USE_WIN32_LDAP)
|
|
Curl_unicodefree(attr);
|
|
#endif
|
|
ldap_memfree(attribute);
|
|
|
|
result = Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\n", 1);
|
|
if(result)
|
|
goto quit;
|
|
dlsize++;
|
|
Curl_pgrsSetDownloadCounter(data, dlsize);
|
|
}
|
|
|
|
if(ber)
|
|
ber_free(ber, 0);
|
|
}
|
|
|
|
quit:
|
|
if(ldapmsg) {
|
|
ldap_msgfree(ldapmsg);
|
|
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 */
|
|
|
|
#if defined(USE_WIN32_LDAP)
|
|
Curl_unicodefree(passwd);
|
|
Curl_unicodefree(user);
|
|
Curl_unicodefree(host);
|
|
#endif
|
|
|
|
/* no data to transfer */
|
|
Curl_setup_transfer(conn, -1, -1, FALSE, NULL, -1, NULL);
|
|
connclose(conn, "LDAP connection always disable re-use");
|
|
|
|
return result;
|
|
}
|
|
|
|
#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 && strtol(env, NULL, 10) > 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(strequal(p, "one"))
|
|
return LDAP_SCOPE_ONELEVEL;
|
|
if(strequal(p, "onetree"))
|
|
return LDAP_SCOPE_ONELEVEL;
|
|
if(strequal(p, "base"))
|
|
return LDAP_SCOPE_BASE;
|
|
if(strequal(p, "sub"))
|
|
return LDAP_SCOPE_SUBTREE;
|
|
if(strequal( p, "subtree"))
|
|
return LDAP_SCOPE_SUBTREE;
|
|
return (-1);
|
|
}
|
|
|
|
/*
|
|
* Split 'str' into strings separated by commas.
|
|
* Note: out[] points into 'str'.
|
|
*/
|
|
static bool split_str(char *str, char ***out, size_t *count)
|
|
{
|
|
char **res;
|
|
char *lasts;
|
|
char *s;
|
|
size_t i;
|
|
size_t items = 1;
|
|
|
|
s = strchr(str, ',');
|
|
while(s) {
|
|
items++;
|
|
s = strchr(++s, ',');
|
|
}
|
|
|
|
res = calloc(items, sizeof(char *));
|
|
if(!res)
|
|
return FALSE;
|
|
|
|
for(i = 0, s = strtok_r(str, ",", &lasts); s && i < items;
|
|
s = strtok_r(NULL, ",", &lasts), i++)
|
|
res[i] = s;
|
|
|
|
*out = res;
|
|
*count = items;
|
|
|
|
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 = "".
|
|
*
|
|
* Defined in RFC4516 section 2.
|
|
*/
|
|
static int _ldap_url_parse2 (const struct connectdata *conn, LDAPURLDesc *ludp)
|
|
{
|
|
int rc = LDAP_SUCCESS;
|
|
char *path;
|
|
char *p;
|
|
char *q;
|
|
size_t i;
|
|
|
|
if(!conn->data ||
|
|
!conn->data->state.path ||
|
|
conn->data->state.path[0] != '/' ||
|
|
!checkprefix("LDAP", 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;
|
|
|
|
/* Duplicate the path */
|
|
p = path = strdup(conn->data->state.path + 1);
|
|
if(!path)
|
|
return LDAP_NO_MEMORY;
|
|
|
|
/* Parse the DN (Distinguished Name) */
|
|
q = strchr(p, '?');
|
|
if(q)
|
|
*q++ = '\0';
|
|
|
|
if(*p) {
|
|
char *dn = p;
|
|
char *unescaped;
|
|
|
|
LDAP_TRACE (("DN '%s'\n", dn));
|
|
|
|
/* Unescape the DN */
|
|
unescaped = curl_easy_unescape(conn->data, dn, 0, NULL);
|
|
if(!unescaped) {
|
|
rc = LDAP_NO_MEMORY;
|
|
|
|
goto quit;
|
|
}
|
|
|
|
#if defined(USE_WIN32_LDAP)
|
|
/* Convert the unescaped string to a tchar */
|
|
ludp->lud_dn = Curl_convert_UTF8_to_tchar(unescaped);
|
|
|
|
/* Free the unescaped string as we are done with it */
|
|
Curl_unicodefree(unescaped);
|
|
|
|
if(!ludp->lud_dn) {
|
|
rc = LDAP_NO_MEMORY;
|
|
|
|
goto quit;
|
|
}
|
|
#else
|
|
ludp->lud_dn = unescaped;
|
|
#endif
|
|
}
|
|
|
|
p = q;
|
|
if(!p)
|
|
goto quit;
|
|
|
|
/* Parse the attributes. skip "??" */
|
|
q = strchr(p, '?');
|
|
if(q)
|
|
*q++ = '\0';
|
|
|
|
if(*p) {
|
|
char **attributes;
|
|
size_t count = 0;
|
|
|
|
/* Split the string into an array of attributes */
|
|
if(!split_str(p, &attributes, &count)) {
|
|
rc = LDAP_NO_MEMORY;
|
|
|
|
goto quit;
|
|
}
|
|
|
|
/* Allocate our array (+1 for the NULL entry) */
|
|
#if defined(USE_WIN32_LDAP)
|
|
ludp->lud_attrs = calloc(count + 1, sizeof(TCHAR *));
|
|
#else
|
|
ludp->lud_attrs = calloc(count + 1, sizeof(char *));
|
|
#endif
|
|
if(!ludp->lud_attrs) {
|
|
free(attributes);
|
|
|
|
rc = LDAP_NO_MEMORY;
|
|
|
|
goto quit;
|
|
}
|
|
|
|
for(i = 0; i < count; i++) {
|
|
char *unescaped;
|
|
|
|
LDAP_TRACE (("attr[%d] '%s'\n", i, attributes[i]));
|
|
|
|
/* Unescape the attribute */
|
|
unescaped = curl_easy_unescape(conn->data, attributes[i], 0, NULL);
|
|
if(!unescaped) {
|
|
free(attributes);
|
|
|
|
rc = LDAP_NO_MEMORY;
|
|
|
|
goto quit;
|
|
}
|
|
|
|
#if defined(USE_WIN32_LDAP)
|
|
/* Convert the unescaped string to a tchar */
|
|
ludp->lud_attrs[i] = Curl_convert_UTF8_to_tchar(unescaped);
|
|
|
|
/* Free the unescaped string as we are done with it */
|
|
Curl_unicodefree(unescaped);
|
|
|
|
if(!ludp->lud_attrs[i]) {
|
|
free(attributes);
|
|
|
|
rc = LDAP_NO_MEMORY;
|
|
|
|
goto quit;
|
|
}
|
|
#else
|
|
ludp->lud_attrs[i] = unescaped;
|
|
#endif
|
|
|
|
ludp->lud_attrs_dups++;
|
|
}
|
|
|
|
free(attributes);
|
|
}
|
|
|
|
p = q;
|
|
if(!p)
|
|
goto quit;
|
|
|
|
/* Parse the scope. skip "??" */
|
|
q = strchr(p, '?');
|
|
if(q)
|
|
*q++ = '\0';
|
|
|
|
if(*p) {
|
|
ludp->lud_scope = str2scope(p);
|
|
if(ludp->lud_scope == -1) {
|
|
rc = LDAP_INVALID_SYNTAX;
|
|
|
|
goto quit;
|
|
}
|
|
LDAP_TRACE (("scope %d\n", ludp->lud_scope));
|
|
}
|
|
|
|
p = q;
|
|
if(!p)
|
|
goto quit;
|
|
|
|
/* Parse the filter */
|
|
q = strchr(p, '?');
|
|
if(q)
|
|
*q++ = '\0';
|
|
|
|
if(*p) {
|
|
char *filter = p;
|
|
char *unescaped;
|
|
|
|
LDAP_TRACE (("filter '%s'\n", filter));
|
|
|
|
/* Unescape the filter */
|
|
unescaped = curl_easy_unescape(conn->data, filter, 0, NULL);
|
|
if(!unescaped) {
|
|
rc = LDAP_NO_MEMORY;
|
|
|
|
goto quit;
|
|
}
|
|
|
|
#if defined(USE_WIN32_LDAP)
|
|
/* Convert the unescaped string to a tchar */
|
|
ludp->lud_filter = Curl_convert_UTF8_to_tchar(unescaped);
|
|
|
|
/* Free the unescaped string as we are done with it */
|
|
Curl_unicodefree(unescaped);
|
|
|
|
if(!ludp->lud_filter) {
|
|
rc = LDAP_NO_MEMORY;
|
|
|
|
goto quit;
|
|
}
|
|
#else
|
|
ludp->lud_filter = unescaped;
|
|
#endif
|
|
}
|
|
|
|
p = q;
|
|
if(p && !*p) {
|
|
rc = LDAP_INVALID_SYNTAX;
|
|
|
|
goto quit;
|
|
}
|
|
|
|
quit:
|
|
free(path);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int _ldap_url_parse (const struct connectdata *conn,
|
|
LDAPURLDesc **ludpp)
|
|
{
|
|
LDAPURLDesc *ludp = calloc(1, sizeof(*ludp));
|
|
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)
|
|
{
|
|
size_t i;
|
|
|
|
if(!ludp)
|
|
return;
|
|
|
|
free(ludp->lud_dn);
|
|
free(ludp->lud_filter);
|
|
|
|
if(ludp->lud_attrs) {
|
|
for(i = 0; i < ludp->lud_attrs_dups; i++)
|
|
free(ludp->lud_attrs[i]);
|
|
free(ludp->lud_attrs);
|
|
}
|
|
|
|
free (ludp);
|
|
}
|
|
#endif /* !HAVE_LDAP_URL_PARSE */
|
|
#endif /* !CURL_DISABLE_LDAP && !USE_OPENLDAP */
|