/***************************************************************************
- * _ _ ____ _
- * Project ___| | | | _ \| |
- * / __| | | | |_) | |
- * | (__| |_| | _ <| |___
- * \___|\___/|_| \_\_____|
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2004, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
- *
+ *
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
- * $Id$
***************************************************************************/
#include "setup.h"
-#ifndef CURL_DISABLE_LDAP
-/* -- 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>
-
-#if defined(WIN32) && !defined(__GNUC__)
-#else
-# ifdef HAVE_UNISTD_H
-# include <unistd.h>
+#if !defined(CURL_DISABLE_LDAP) && !defined(USE_OPENLDAP)
+
+/*
+ * Notice that USE_OPENLDAP is only a source code selection switch. When
+ * libcurl is built with USE_OPENLDAP defined the libcurl source code that
+ * gets compiled is the code from openldap.c, otherwise the code that gets
+ * compiled is the code from ldap.c.
+ *
+ * When USE_OPENLDAP is defined a recent version of the OpenLDAP library
+ * might be required for compilation and runtime. In order to use ancient
+ * OpenLDAP library versions, USE_OPENLDAP shall not be defined.
+ */
+
+#ifdef CURL_LDAP_WIN /* Use Windows LDAP implementation. */
+# include <winldap.h>
+# ifndef LDAP_VENDOR_NAME
+# error Your Platform SDK is NOT sufficient for LDAP support! \
+ Update your Platform SDK, or disable LDAP support!
+# else
+# include <winber.h>
# endif
-# ifdef HAVE_DLFCN_H
-# include <dlfcn.h>
+#else
+# define LDAP_DEPRECATED 1 /* Be sure ldap_init() is defined. */
+# ifdef HAVE_LBER_H
+# include <lber.h>
# endif
+# include <ldap.h>
+# if (defined(HAVE_LDAP_SSL) && defined(HAVE_LDAP_SSL_H))
+# include <ldap_ssl.h>
+# endif /* HAVE_LDAP_SSL && HAVE_LDAP_SSL_H */
#endif
#include "urldata.h"
#include <curl/curl.h>
#include "sendf.h"
#include "escape.h"
+#include "progress.h"
#include "transfer.h"
-#include "ldap.h"
+#include "strequal.h"
+#include "strtok.h"
+#include "curl_ldap.h"
+#include "curl_memory.h"
+#include "curl_base64.h"
+#include "rawstr.h"
#define _MPRINTF_REPLACE /* use our functions only */
#include <curl/mprintf.h>
-typedef void * (*dynafunc)(void *input);
+#include "memdebug.h"
-#define DYNA_GET_FUNCTION(type, fnc) \
- (fnc) = (type)DynaGetFunction(#fnc); \
- if ((fnc) == NULL) { \
- return CURLE_FUNCTION_NOT_FOUND; \
- }
+#ifndef HAVE_LDAP_URL_PARSE
+
+/* Use our own implementation. */
+
+typedef struct {
+ char *lud_host;
+ int lud_port;
+ char *lud_dn;
+ char **lud_attrs;
+ int lud_scope;
+ char *lud_filter;
+ char **lud_exts;
+} CURL_LDAPURLDesc;
+
+#undef LDAPURLDesc
+#define LDAPURLDesc CURL_LDAPURLDesc
+
+static int _ldap_url_parse (const struct connectdata *conn,
+ LDAPURLDesc **ludp);
+static void _ldap_free_urldesc (LDAPURLDesc *ludp);
+
+#undef ldap_free_urldesc
+#define ldap_free_urldesc _ldap_free_urldesc
+#endif
+
+#ifdef DEBUG_LDAP
+ #define LDAP_TRACE(x) do { \
+ _ldap_trace ("%u: ", __LINE__); \
+ _ldap_trace x; \
+ } WHILE_FALSE
+
+ static void _ldap_trace (const char *fmt, ...);
+#else
+ #define LDAP_TRACE(x) Curl_nop_stmt
+#endif
+
+
+static CURLcode Curl_ldap(struct connectdata *conn, bool *done);
-/***********************************************************************
+/*
+ * LDAP protocol handler.
*/
-static void *libldap = NULL;
-static void *liblber = NULL;
-static void DynaOpen(void)
+const struct Curl_handler Curl_handler_ldap = {
+ "LDAP", /* scheme */
+ ZERO_NULL, /* setup_connection */
+ Curl_ldap, /* do_it */
+ ZERO_NULL, /* done */
+ ZERO_NULL, /* do_more */
+ ZERO_NULL, /* connect_it */
+ ZERO_NULL, /* connecting */
+ ZERO_NULL, /* doing */
+ ZERO_NULL, /* proto_getsock */
+ ZERO_NULL, /* doing_getsock */
+ ZERO_NULL, /* domore_getsock */
+ ZERO_NULL, /* perform_getsock */
+ ZERO_NULL, /* disconnect */
+ ZERO_NULL, /* readwrite */
+ PORT_LDAP, /* defport */
+ CURLPROTO_LDAP, /* protocol */
+ PROTOPT_NONE /* flags */
+};
+
+#ifdef HAVE_LDAP_SSL
+/*
+ * LDAPS protocol handler.
+ */
+
+const struct Curl_handler Curl_handler_ldaps = {
+ "LDAPS", /* scheme */
+ ZERO_NULL, /* setup_connection */
+ Curl_ldap, /* do_it */
+ ZERO_NULL, /* done */
+ ZERO_NULL, /* do_more */
+ ZERO_NULL, /* connect_it */
+ ZERO_NULL, /* connecting */
+ ZERO_NULL, /* doing */
+ ZERO_NULL, /* proto_getsock */
+ ZERO_NULL, /* doing_getsock */
+ ZERO_NULL, /* domore_getsock */
+ ZERO_NULL, /* perform_getsock */
+ ZERO_NULL, /* disconnect */
+ ZERO_NULL, /* readwrite */
+ PORT_LDAPS, /* defport */
+ CURLPROTO_LDAP | CURLPROTO_LDAPS, /* protocol */
+ PROTOPT_SSL /* flags */
+};
+#endif
+
+
+static CURLcode Curl_ldap(struct connectdata *conn, bool *done)
{
-#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.
- */
- liblber = dlopen("liblber.so",
-#ifdef RTLD_LAZY_GLOBAL /* It turns out some systems use this: */
- RTLD_LAZY_GLOBAL
+ CURLcode status = CURLE_OK;
+ int rc = 0;
+ LDAP *server = NULL;
+ LDAPURLDesc *ludp = NULL;
+ LDAPMessage *result = NULL;
+ LDAPMessage *entryIterator;
+ int num = 0;
+ struct SessionHandle *data=conn->data;
+ int ldap_proto = LDAP_VERSION3;
+ int ldap_ssl = 0;
+ char *val_b64 = NULL;
+ size_t val_b64_sz = 0;
+ curl_off_t dlsize = 0;
+#ifdef LDAP_OPT_NETWORK_TIMEOUT
+ struct timeval ldap_timeout = {10,0}; /* 10 sec connection/search timeout */
+#endif
+
+ *done = TRUE; /* unconditionally */
+ infof(data, "LDAP local: LDAP Vendor = %s ; LDAP Version = %d\n",
+ LDAP_VENDOR_NAME, LDAP_VENDOR_VERSION);
+ infof(data, "LDAP local: %s\n", data->change.url);
+
+#ifdef HAVE_LDAP_URL_PARSE
+ rc = ldap_url_parse(data->change.url, &ludp);
#else
-#ifdef RTLD_GLOBAL
- RTLD_LAZY | RTLD_GLOBAL
+ rc = _ldap_url_parse(conn, &ludp);
+#endif
+ if(rc != 0) {
+ failf(data, "LDAP local: %s", ldap_err2string(rc));
+ status = CURLE_LDAP_INVALID_URL;
+ goto quit;
+ }
+
+ /* Get the URL scheme ( either ldap or ldaps ) */
+ if(conn->given->flags & PROTOPT_SSL)
+ ldap_ssl = 1;
+ infof(data, "LDAP local: trying to establish %s connection\n",
+ ldap_ssl ? "encrypted" : "cleartext");
+
+#ifdef LDAP_OPT_NETWORK_TIMEOUT
+ ldap_set_option(NULL, LDAP_OPT_NETWORK_TIMEOUT, &ldap_timeout);
+#endif
+ ldap_set_option(NULL, LDAP_OPT_PROTOCOL_VERSION, &ldap_proto);
+
+ if(ldap_ssl) {
+#ifdef HAVE_LDAP_SSL
+#ifdef CURL_LDAP_WIN
+ /* Win32 LDAP SDK doesn't support insecure mode without CA! */
+ server = ldap_sslinit(conn->host.name, (int)conn->port, 1);
+ ldap_set_option(server, LDAP_OPT_SSL, LDAP_OPT_ON);
#else
- /* and some systems don't have the RTLD_GLOBAL symbol */
- RTLD_LAZY
+ int ldap_option;
+ char* ldap_ca = data->set.str[STRING_SSL_CAFILE];
+#if defined(CURL_HAS_NOVELL_LDAPSDK)
+ rc = ldapssl_client_init(NULL, NULL);
+ if(rc != LDAP_SUCCESS) {
+ failf(data, "LDAP local: ldapssl_client_init %s", ldap_err2string(rc));
+ status = CURLE_SSL_CERTPROBLEM;
+ goto quit;
+ }
+ if(data->set.ssl.verifypeer) {
+ /* Novell SDK supports DER or BASE64 files. */
+ int cert_type = LDAPSSL_CERT_FILETYPE_B64;
+ if((data->set.str[STRING_CERT_TYPE]) &&
+ (Curl_raw_equal(data->set.str[STRING_CERT_TYPE], "DER")))
+ cert_type = LDAPSSL_CERT_FILETYPE_DER;
+ if(!ldap_ca) {
+ failf(data, "LDAP local: ERROR %s CA cert not set!",
+ (cert_type == LDAPSSL_CERT_FILETYPE_DER ? "DER" : "PEM"));
+ status = CURLE_SSL_CERTPROBLEM;
+ goto quit;
+ }
+ infof(data, "LDAP local: using %s CA cert '%s'\n",
+ (cert_type == LDAPSSL_CERT_FILETYPE_DER ? "DER" : "PEM"),
+ ldap_ca);
+ rc = ldapssl_add_trusted_cert(ldap_ca, cert_type);
+ if(rc != LDAP_SUCCESS) {
+ failf(data, "LDAP local: ERROR setting %s CA cert: %s",
+ (cert_type == LDAPSSL_CERT_FILETYPE_DER ? "DER" : "PEM"),
+ ldap_err2string(rc));
+ status = CURLE_SSL_CERTPROBLEM;
+ goto quit;
+ }
+ ldap_option = LDAPSSL_VERIFY_SERVER;
+ }
+ else
+ ldap_option = LDAPSSL_VERIFY_NONE;
+ rc = ldapssl_set_verify_mode(ldap_option);
+ if(rc != LDAP_SUCCESS) {
+ failf(data, "LDAP local: ERROR setting cert verify mode: %s",
+ ldap_err2string(rc));
+ status = CURLE_SSL_CERTPROBLEM;
+ goto quit;
+ }
+ server = ldapssl_init(conn->host.name, (int)conn->port, 1);
+ if(server == NULL) {
+ failf(data, "LDAP local: Cannot connect to %s:%hu",
+ conn->host.name, conn->port);
+ status = CURLE_COULDNT_CONNECT;
+ goto quit;
+ }
+#elif defined(LDAP_OPT_X_TLS)
+ if(data->set.ssl.verifypeer) {
+ /* OpenLDAP SDK supports BASE64 files. */
+ if((data->set.str[STRING_CERT_TYPE]) &&
+ (!Curl_raw_equal(data->set.str[STRING_CERT_TYPE], "PEM"))) {
+ failf(data, "LDAP local: ERROR OpenLDAP only supports PEM cert-type!");
+ status = CURLE_SSL_CERTPROBLEM;
+ goto quit;
+ }
+ if(!ldap_ca) {
+ failf(data, "LDAP local: ERROR PEM CA cert not set!");
+ status = CURLE_SSL_CERTPROBLEM;
+ goto quit;
+ }
+ infof(data, "LDAP local: using PEM CA cert: %s\n", ldap_ca);
+ rc = ldap_set_option(NULL, LDAP_OPT_X_TLS_CACERTFILE, ldap_ca);
+ if(rc != LDAP_SUCCESS) {
+ failf(data, "LDAP local: ERROR setting PEM CA cert: %s",
+ ldap_err2string(rc));
+ status = CURLE_SSL_CERTPROBLEM;
+ goto quit;
+ }
+ ldap_option = LDAP_OPT_X_TLS_DEMAND;
+ }
+ else
+ ldap_option = LDAP_OPT_X_TLS_NEVER;
+
+ rc = ldap_set_option(NULL, LDAP_OPT_X_TLS_REQUIRE_CERT, &ldap_option);
+ if(rc != LDAP_SUCCESS) {
+ failf(data, "LDAP local: ERROR setting cert verify mode: %s",
+ ldap_err2string(rc));
+ status = CURLE_SSL_CERTPROBLEM;
+ goto quit;
+ }
+ server = ldap_init(conn->host.name, (int)conn->port);
+ if(server == NULL) {
+ failf(data, "LDAP local: Cannot connect to %s:%hu",
+ conn->host.name, conn->port);
+ status = CURLE_COULDNT_CONNECT;
+ goto quit;
+ }
+ ldap_option = LDAP_OPT_X_TLS_HARD;
+ rc = ldap_set_option(server, LDAP_OPT_X_TLS, &ldap_option);
+ if(rc != LDAP_SUCCESS) {
+ 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;
+ }
+*/
+#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
- );
- libldap = dlopen("libldap.so", RTLD_LAZY);
+#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:%hu",
+ 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);
+
+ dlsize += strlen(dn)+5;
+
+ 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);
+ dlsize += strlen(attribute)+3;
+
+ if((strlen(attribute) > 7) &&
+ (strcmp(";binary",
+ (char *)attribute +
+ (strlen((char *)attribute) - 7)) == 0)) {
+ /* Binary attribute, encode to base64. */
+ CURLcode error = Curl_base64_encode(data,
+ vals[i]->bv_val,
+ vals[i]->bv_len,
+ &val_b64,
+ &val_b64_sz);
+ if(error) {
+ ldap_value_free_len(vals);
+ ldap_memfree(attribute);
+ ldap_memfree(dn);
+ if(ber)
+ ber_free(ber, 0);
+ status = error;
+ goto quit;
+ }
+ if(val_b64_sz > 0) {
+ Curl_client_write(conn, CLIENTWRITE_BODY, val_b64, val_b64_sz);
+ free(val_b64);
+ dlsize += val_b64_sz;
+ }
+ }
+ else {
+ Curl_client_write(conn, CLIENTWRITE_BODY, vals[i]->bv_val,
+ vals[i]->bv_len);
+ dlsize += vals[i]->bv_len;
+ }
+ Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\n", 0);
+ dlsize++;
+ }
+
+ /* Free memory used to store values */
+ ldap_value_free_len(vals);
+ }
+ Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\n", 1);
+ dlsize++;
+ Curl_pgrsSetDownloadCounter(data, dlsize);
+ 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;
}
-static void DynaClose(void)
+#ifdef DEBUG_LDAP
+static void _ldap_trace (const char *fmt, ...)
{
-#if defined(HAVE_DLOPEN) || defined(HAVE_LIBDL)
- if (libldap) {
- dlclose(libldap);
- libldap=NULL;
- }
- if (liblber) {
- dlclose(liblber);
- liblber=NULL;
+ 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: 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;
}
-static dynafunc DynaGetFunction(const char *name)
+/*
+ * Unescape the LDAP-URL components
+ */
+static bool unescape_elements (void *data, LDAPURLDesc *ludp)
{
- dynafunc func = (dynafunc)NULL;
+ int i;
-#if defined(HAVE_DLOPEN) || defined(HAVE_LIBDL)
- if (libldap) {
- func = (dynafunc) dlsym(libldap, name);
+ if(ludp->lud_filter) {
+ ludp->lud_filter = curl_easy_unescape(data, ludp->lud_filter, 0, NULL);
+ if(!ludp->lud_filter)
+ return (FALSE);
}
-#endif
-
- return func;
+
+ 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 = "".
+ *
+ * Defined in RFC4516 section 2.
*/
-typedef struct ldap_url_desc {
- struct ldap_url_desc *lud_next;
- char *lud_scheme;
- char *lud_host;
- int lud_port;
- char *lud_dn;
- char **lud_attrs;
- int lud_scope;
- char *lud_filter;
- char **lud_exts;
- int lud_crit_exts;
-} LDAPURLDesc;
-
-
-CURLcode Curl_ldap(struct connectdata *conn)
+static int _ldap_url_parse2 (const struct connectdata *conn, LDAPURLDesc *ludp)
{
- CURLcode status = CURLE_OK;
- int rc;
- void *(*ldap_init)(char *, int);
- int (*ldap_simple_bind_s)(void *, char *, char *);
- int (*ldap_unbind_s)(void *);
- int (*ldap_url_parse)(char *, LDAPURLDesc **);
- void (*ldap_free_urldesc)(void *);
- int (*ldap_search_s)(void *, char *, int, char *, char **, int, void **);
- int (*ldap_search_st)(void *, char *, int, char *, char **, int, void *, void **);
- void *(*ldap_first_entry)(void *, void *);
- void *(*ldap_next_entry)(void *, void *);
- char *(*ldap_err2string)(int);
- char *(*ldap_get_dn)(void *, void *);
- char *(*ldap_first_attribute)(void *, void *, void **);
- char *(*ldap_next_attribute)(void *, void *, void *);
- char **(*ldap_get_values)(void *, void *, char *);
- void (*ldap_value_free)(char **);
- void (*ldap_memfree)(void *);
- void (*ber_free)(void *, int);
-
- void *server;
- LDAPURLDesc *ludp;
- void *result;
- void *entryIterator;
- void *ber;
- void *attribute;
+ char *p, *q;
+ int i;
- struct SessionHandle *data=conn->data;
-
- infof(data, "LDAP: %s\n", data->change.url);
+ 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;
+
+ /* 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';
- DynaOpen();
- if (libldap == NULL) {
- failf(data, "The needed LDAP library/libraries couldn't be opened");
- return CURLE_LIBRARY_NOT_FOUND;
+ /* 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]));
}
- /* The types are needed because ANSI C distinguishes between
- * pointer-to-object (data) and pointer-to-function.
+ p = q;
+ if(!p)
+ goto success;
+
+ /* parse scope. skip "??"
*/
- DYNA_GET_FUNCTION(void *(*)(char *, int), ldap_init);
- DYNA_GET_FUNCTION(int (*)(void *, char *, char *), ldap_simple_bind_s);
- DYNA_GET_FUNCTION(int (*)(void *), ldap_unbind_s);
- DYNA_GET_FUNCTION(int (*)(char *, LDAPURLDesc **), ldap_url_parse);
- DYNA_GET_FUNCTION(void (*)(void *), ldap_free_urldesc);
- DYNA_GET_FUNCTION(int (*)(void *, char *, int, char *, char **, int, void **), ldap_search_s);
- DYNA_GET_FUNCTION(int (*)(void *, char *, int, char *, char **, int, void *, void **), ldap_search_st);
- 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(char *(*)(void *, void *), ldap_get_dn);
- DYNA_GET_FUNCTION(char *(*)(void *, void *, void **), ldap_first_attribute);
- DYNA_GET_FUNCTION(char *(*)(void *, void *, void *), ldap_next_attribute);
- DYNA_GET_FUNCTION(char **(*)(void *, void *, char *), ldap_get_values);
- DYNA_GET_FUNCTION(void (*)(char **), ldap_value_free);
- DYNA_GET_FUNCTION(void (*)(void *), ldap_memfree);
- DYNA_GET_FUNCTION(void (*)(void *, int), ber_free);
-
- server = ldap_init(conn->host.name, conn->port);
- if (server == NULL) {
- failf(data, "LDAP: Cannot connect to %s:%d",
- conn->host.name, conn->port);
- status = CURLE_COULDNT_CONNECT;
+ 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));
}
- else {
- 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: %s", ldap_err2string(rc));
- status = CURLE_LDAP_CANNOT_BIND;
- }
- else {
- rc = ldap_url_parse(data->change.url, &ludp);
- if (rc != 0) {
- failf(data, "LDAP: %s", ldap_err2string(rc));
- status = CURLE_LDAP_INVALID_URL;
- }
- else {
- rc = ldap_search_s(server, ludp->lud_dn, ludp->lud_scope,
- ludp->lud_filter, ludp->lud_attrs, 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)) {
- char *dn = ldap_get_dn(server, entryIterator);
- char **vals;
- int i;
-
- Curl_client_write(data, CLIENTWRITE_BODY, (char *)"DN: ", 4);
- Curl_client_write(data, CLIENTWRITE_BODY, dn, 0);
- Curl_client_write(data, CLIENTWRITE_BODY, (char *)"\n", 1);
- for(attribute = ldap_first_attribute(server, entryIterator,
- &ber);
- attribute;
- attribute = ldap_next_attribute(server, entryIterator,
- ber) ) {
- vals = ldap_get_values(server, entryIterator, attribute);
- if (vals != NULL) {
- for(i = 0; (vals[i] != NULL); i++) {
- Curl_client_write(data, CLIENTWRITE_BODY, (char*)"\t", 1);
- Curl_client_write(data, CLIENTWRITE_BODY, attribute, 0);
- Curl_client_write(data, CLIENTWRITE_BODY, (char *)": ", 2);
- Curl_client_write(data, CLIENTWRITE_BODY, vals[i], 0);
- Curl_client_write(data, CLIENTWRITE_BODY, (char *)"\n", 0);
- }
- }
-
- /* Free memory used to store values */
- ldap_value_free(vals);
- }
- Curl_client_write(data, CLIENTWRITE_BODY, (char *)"\n", 1);
-
- ldap_memfree(attribute);
- ldap_memfree(dn);
- if (ber) ber_free(ber, 0);
- }
- }
- ldap_free_urldesc(ludp);
- }
- ldap_unbind_s(server);
- }
+ 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(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;
}
- DynaClose();
+ *ludpp = ludp;
+ return (rc);
+}
- /* no data to transfer */
- Curl_Transfer(conn, -1, -1, FALSE, NULL, -1, NULL);
-
- return status;
+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
+#endif /* !HAVE_LDAP_URL_PARSE */
+#endif /* !CURL_DISABLE_LDAP && !USE_OPENLDAP */
projects / platform / upstream / curl.git / blobdiff