1/*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al. 9 * 10 * This software is licensed as described in the file COPYING, which 11 * you should have received as part of this distribution. The terms 12 * are also available at http://curl.haxx.se/docs/copyright.html. 13 * 14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell 15 * copies of the Software, and permit persons to whom the Software is 16 * furnished to do so, under the terms of the COPYING file. 17 * 18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 19 * KIND, either express or implied. 20 * 21 ***************************************************************************/ 22 23#include "setup.h" 24 25#if !defined(CURL_DISABLE_LDAP) && !defined(USE_OPENLDAP) 26 27/* 28 * Notice that USE_OPENLDAP is only a source code selection switch. When 29 * libcurl is built with USE_OPENLDAP defined the libcurl source code that 30 * gets compiled is the code from openldap.c, otherwise the code that gets 31 * compiled is the code from ldap.c. 32 * 33 * When USE_OPENLDAP is defined a recent version of the OpenLDAP library 34 * might be required for compilation and runtime. In order to use ancient 35 * OpenLDAP library versions, USE_OPENLDAP shall not be defined. 36 */ 37 38/* -- WIN32 approved -- */ 39#include <stdio.h> 40#include <string.h> 41#include <stdarg.h> 42#include <stdlib.h> 43#include <ctype.h> 44#include <errno.h> 45 46#ifdef CURL_LDAP_WIN /* Use Windows LDAP implementation. */ 47# include <winldap.h> 48# ifndef LDAP_VENDOR_NAME 49# error Your Platform SDK is NOT sufficient for LDAP support! \ 50 Update your Platform SDK, or disable LDAP support! 51# else 52# include <winber.h> 53# endif 54#else 55# define LDAP_DEPRECATED 1 /* Be sure ldap_init() is defined. */ 56# ifdef HAVE_LBER_H 57# include <lber.h> 58# endif 59# include <ldap.h> 60# if (defined(HAVE_LDAP_SSL) && defined(HAVE_LDAP_SSL_H)) 61# include <ldap_ssl.h> 62# endif /* HAVE_LDAP_SSL && HAVE_LDAP_SSL_H */ 63#endif 64 65#ifdef HAVE_UNISTD_H 66# include <unistd.h> 67#endif 68 69#include "urldata.h" 70#include <curl/curl.h> 71#include "sendf.h" 72#include "escape.h" 73#include "progress.h" 74#include "transfer.h" 75#include "strequal.h" 76#include "strtok.h" 77#include "curl_ldap.h" 78#include "curl_memory.h" 79#include "curl_base64.h" 80#include "rawstr.h" 81 82#define _MPRINTF_REPLACE /* use our functions only */ 83#include <curl/mprintf.h> 84 85#include "memdebug.h" 86 87#ifndef HAVE_LDAP_URL_PARSE 88 89/* Use our own implementation. */ 90 91typedef struct { 92 char *lud_host; 93 int lud_port; 94 char *lud_dn; 95 char **lud_attrs; 96 int lud_scope; 97 char *lud_filter; 98 char **lud_exts; 99} CURL_LDAPURLDesc; 100 101#undef LDAPURLDesc 102#define LDAPURLDesc CURL_LDAPURLDesc 103 104static int _ldap_url_parse (const struct connectdata *conn, 105 LDAPURLDesc **ludp); 106static void _ldap_free_urldesc (LDAPURLDesc *ludp); 107 108#undef ldap_free_urldesc 109#define ldap_free_urldesc _ldap_free_urldesc 110#endif 111 112#ifdef DEBUG_LDAP 113 #define LDAP_TRACE(x) do { \ 114 _ldap_trace ("%u: ", __LINE__); \ 115 _ldap_trace x; \ 116 } while(0) 117 118 static void _ldap_trace (const char *fmt, ...); 119#else 120 #define LDAP_TRACE(x) ((void)0) 121#endif 122 123 124static CURLcode Curl_ldap(struct connectdata *conn, bool *done); 125 126/* 127 * LDAP protocol handler. 128 */ 129 130const struct Curl_handler Curl_handler_ldap = { 131 "LDAP", /* scheme */ 132 ZERO_NULL, /* setup_connection */ 133 Curl_ldap, /* do_it */ 134 ZERO_NULL, /* done */ 135 ZERO_NULL, /* do_more */ 136 ZERO_NULL, /* connect_it */ 137 ZERO_NULL, /* connecting */ 138 ZERO_NULL, /* doing */ 139 ZERO_NULL, /* proto_getsock */ 140 ZERO_NULL, /* doing_getsock */ 141 ZERO_NULL, /* perform_getsock */ 142 ZERO_NULL, /* disconnect */ 143 ZERO_NULL, /* readwrite */ 144 PORT_LDAP, /* defport */ 145 CURLPROTO_LDAP, /* protocol */ 146 PROTOPT_NONE /* flags */ 147}; 148 149#ifdef HAVE_LDAP_SSL 150/* 151 * LDAPS protocol handler. 152 */ 153 154const struct Curl_handler Curl_handler_ldaps = { 155 "LDAPS", /* scheme */ 156 ZERO_NULL, /* setup_connection */ 157 Curl_ldap, /* do_it */ 158 ZERO_NULL, /* done */ 159 ZERO_NULL, /* do_more */ 160 ZERO_NULL, /* connect_it */ 161 ZERO_NULL, /* connecting */ 162 ZERO_NULL, /* doing */ 163 ZERO_NULL, /* proto_getsock */ 164 ZERO_NULL, /* doing_getsock */ 165 ZERO_NULL, /* perform_getsock */ 166 ZERO_NULL, /* disconnect */ 167 ZERO_NULL, /* readwrite */ 168 PORT_LDAPS, /* defport */ 169 CURLPROTO_LDAP | CURLPROTO_LDAPS, /* protocol */ 170 PROTOPT_SSL /* flags */ 171}; 172#endif 173 174 175static CURLcode Curl_ldap(struct connectdata *conn, bool *done) 176{ 177 CURLcode status = CURLE_OK; 178 int rc = 0; 179 LDAP *server = NULL; 180 LDAPURLDesc *ludp = NULL; 181 LDAPMessage *result = NULL; 182 LDAPMessage *entryIterator; 183 int num = 0; 184 struct SessionHandle *data=conn->data; 185 int ldap_proto = LDAP_VERSION3; 186 int ldap_ssl = 0; 187 char *val_b64; 188 size_t val_b64_sz; 189 curl_off_t dlsize=0; 190#ifdef LDAP_OPT_NETWORK_TIMEOUT 191 struct timeval ldap_timeout = {10,0}; /* 10 sec connection/search timeout */ 192#endif 193 194 *done = TRUE; /* unconditionally */ 195 infof(data, "LDAP local: LDAP Vendor = %s ; LDAP Version = %d\n", 196 LDAP_VENDOR_NAME, LDAP_VENDOR_VERSION); 197 infof(data, "LDAP local: %s\n", data->change.url); 198 199#ifdef HAVE_LDAP_URL_PARSE 200 rc = ldap_url_parse(data->change.url, &ludp); 201#else 202 rc = _ldap_url_parse(conn, &ludp); 203#endif 204 if(rc != 0) { 205 failf(data, "LDAP local: %s", ldap_err2string(rc)); 206 status = CURLE_LDAP_INVALID_URL; 207 goto quit; 208 } 209 210 /* Get the URL scheme ( either ldap or ldaps ) */ 211 if(conn->given->flags & PROTOPT_SSL) 212 ldap_ssl = 1; 213 infof(data, "LDAP local: trying to establish %s connection\n", 214 ldap_ssl ? "encrypted" : "cleartext"); 215 216#ifdef LDAP_OPT_NETWORK_TIMEOUT 217 ldap_set_option(NULL, LDAP_OPT_NETWORK_TIMEOUT, &ldap_timeout); 218#endif 219 ldap_set_option(NULL, LDAP_OPT_PROTOCOL_VERSION, &ldap_proto); 220 221 if(ldap_ssl) { 222#ifdef HAVE_LDAP_SSL 223#ifdef CURL_LDAP_WIN 224 /* Win32 LDAP SDK doesn't support insecure mode without CA! */ 225 server = ldap_sslinit(conn->host.name, (int)conn->port, 1); 226 ldap_set_option(server, LDAP_OPT_SSL, LDAP_OPT_ON); 227#else 228 int ldap_option; 229 char* ldap_ca = data->set.str[STRING_SSL_CAFILE]; 230#if defined(CURL_HAS_NOVELL_LDAPSDK) 231 rc = ldapssl_client_init(NULL, NULL); 232 if(rc != LDAP_SUCCESS) { 233 failf(data, "LDAP local: ldapssl_client_init %s", ldap_err2string(rc)); 234 status = CURLE_SSL_CERTPROBLEM; 235 goto quit; 236 } 237 if(data->set.ssl.verifypeer) { 238 /* Novell SDK supports DER or BASE64 files. */ 239 int cert_type = LDAPSSL_CERT_FILETYPE_B64; 240 if((data->set.str[STRING_CERT_TYPE]) && 241 (Curl_raw_equal(data->set.str[STRING_CERT_TYPE], "DER"))) 242 cert_type = LDAPSSL_CERT_FILETYPE_DER; 243 if(!ldap_ca) { 244 failf(data, "LDAP local: ERROR %s CA cert not set!", 245 (cert_type == LDAPSSL_CERT_FILETYPE_DER ? "DER" : "PEM")); 246 status = CURLE_SSL_CERTPROBLEM; 247 goto quit; 248 } 249 infof(data, "LDAP local: using %s CA cert '%s'\n", 250 (cert_type == LDAPSSL_CERT_FILETYPE_DER ? "DER" : "PEM"), 251 ldap_ca); 252 rc = ldapssl_add_trusted_cert(ldap_ca, cert_type); 253 if(rc != LDAP_SUCCESS) { 254 failf(data, "LDAP local: ERROR setting %s CA cert: %s", 255 (cert_type == LDAPSSL_CERT_FILETYPE_DER ? "DER" : "PEM"), 256 ldap_err2string(rc)); 257 status = CURLE_SSL_CERTPROBLEM; 258 goto quit; 259 } 260 ldap_option = LDAPSSL_VERIFY_SERVER; 261 } 262 else 263 ldap_option = LDAPSSL_VERIFY_NONE; 264 rc = ldapssl_set_verify_mode(ldap_option); 265 if(rc != LDAP_SUCCESS) { 266 failf(data, "LDAP local: ERROR setting cert verify mode: %s", 267 ldap_err2string(rc)); 268 status = CURLE_SSL_CERTPROBLEM; 269 goto quit; 270 } 271 server = ldapssl_init(conn->host.name, (int)conn->port, 1); 272 if(server == NULL) { 273 failf(data, "LDAP local: Cannot connect to %s:%hu", 274 conn->host.name, conn->port); 275 status = CURLE_COULDNT_CONNECT; 276 goto quit; 277 } 278#elif defined(LDAP_OPT_X_TLS) 279 if(data->set.ssl.verifypeer) { 280 /* OpenLDAP SDK supports BASE64 files. */ 281 if((data->set.str[STRING_CERT_TYPE]) && 282 (!Curl_raw_equal(data->set.str[STRING_CERT_TYPE], "PEM"))) { 283 failf(data, "LDAP local: ERROR OpenLDAP only supports PEM cert-type!"); 284 status = CURLE_SSL_CERTPROBLEM; 285 goto quit; 286 } 287 if(!ldap_ca) { 288 failf(data, "LDAP local: ERROR PEM CA cert not set!"); 289 status = CURLE_SSL_CERTPROBLEM; 290 goto quit; 291 } 292 infof(data, "LDAP local: using PEM CA cert: %s\n", ldap_ca); 293 rc = ldap_set_option(NULL, LDAP_OPT_X_TLS_CACERTFILE, ldap_ca); 294 if(rc != LDAP_SUCCESS) { 295 failf(data, "LDAP local: ERROR setting PEM CA cert: %s", 296 ldap_err2string(rc)); 297 status = CURLE_SSL_CERTPROBLEM; 298 goto quit; 299 } 300 ldap_option = LDAP_OPT_X_TLS_DEMAND; 301 } 302 else 303 ldap_option = LDAP_OPT_X_TLS_NEVER; 304 305 rc = ldap_set_option(NULL, LDAP_OPT_X_TLS_REQUIRE_CERT, &ldap_option); 306 if(rc != LDAP_SUCCESS) { 307 failf(data, "LDAP local: ERROR setting cert verify mode: %s", 308 ldap_err2string(rc)); 309 status = CURLE_SSL_CERTPROBLEM; 310 goto quit; 311 } 312 server = ldap_init(conn->host.name, (int)conn->port); 313 if(server == NULL) { 314 failf(data, "LDAP local: Cannot connect to %s:%hu", 315 conn->host.name, conn->port); 316 status = CURLE_COULDNT_CONNECT; 317 goto quit; 318 } 319 ldap_option = LDAP_OPT_X_TLS_HARD; 320 rc = ldap_set_option(server, LDAP_OPT_X_TLS, &ldap_option); 321 if(rc != LDAP_SUCCESS) { 322 failf(data, "LDAP local: ERROR setting SSL/TLS mode: %s", 323 ldap_err2string(rc)); 324 status = CURLE_SSL_CERTPROBLEM; 325 goto quit; 326 } 327/* 328 rc = ldap_start_tls_s(server, NULL, NULL); 329 if(rc != LDAP_SUCCESS) { 330 failf(data, "LDAP local: ERROR starting SSL/TLS mode: %s", 331 ldap_err2string(rc)); 332 status = CURLE_SSL_CERTPROBLEM; 333 goto quit; 334 } 335*/ 336#else 337 /* we should probably never come up to here since configure 338 should check in first place if we can support LDAP SSL/TLS */ 339 failf(data, "LDAP local: SSL/TLS not supported with this version " 340 "of the OpenLDAP toolkit\n"); 341 status = CURLE_SSL_CERTPROBLEM; 342 goto quit; 343#endif 344#endif 345#endif /* CURL_LDAP_USE_SSL */ 346 } 347 else { 348 server = ldap_init(conn->host.name, (int)conn->port); 349 if(server == NULL) { 350 failf(data, "LDAP local: Cannot connect to %s:%hu", 351 conn->host.name, conn->port); 352 status = CURLE_COULDNT_CONNECT; 353 goto quit; 354 } 355 } 356#ifdef CURL_LDAP_WIN 357 ldap_set_option(server, LDAP_OPT_PROTOCOL_VERSION, &ldap_proto); 358#endif 359 360 rc = ldap_simple_bind_s(server, 361 conn->bits.user_passwd ? conn->user : NULL, 362 conn->bits.user_passwd ? conn->passwd : NULL); 363 if(!ldap_ssl && rc != 0) { 364 ldap_proto = LDAP_VERSION2; 365 ldap_set_option(server, LDAP_OPT_PROTOCOL_VERSION, &ldap_proto); 366 rc = ldap_simple_bind_s(server, 367 conn->bits.user_passwd ? conn->user : NULL, 368 conn->bits.user_passwd ? conn->passwd : NULL); 369 } 370 if(rc != 0) { 371 failf(data, "LDAP local: ldap_simple_bind_s %s", ldap_err2string(rc)); 372 status = CURLE_LDAP_CANNOT_BIND; 373 goto quit; 374 } 375 376 rc = ldap_search_s(server, ludp->lud_dn, ludp->lud_scope, 377 ludp->lud_filter, ludp->lud_attrs, 0, &result); 378 379 if(rc != 0 && rc != LDAP_SIZELIMIT_EXCEEDED) { 380 failf(data, "LDAP remote: %s", ldap_err2string(rc)); 381 status = CURLE_LDAP_SEARCH_FAILED; 382 goto quit; 383 } 384 385 for(num = 0, entryIterator = ldap_first_entry(server, result); 386 entryIterator; 387 entryIterator = ldap_next_entry(server, entryIterator), num++) { 388 BerElement *ber = NULL; 389 char *attribute; /*! suspicious that this isn't 'const' */ 390 char *dn = ldap_get_dn(server, entryIterator); 391 int i; 392 393 Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"DN: ", 4); 394 Curl_client_write(conn, CLIENTWRITE_BODY, (char *)dn, 0); 395 Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\n", 1); 396 397 dlsize += strlen(dn)+5; 398 399 for(attribute = ldap_first_attribute(server, entryIterator, &ber); 400 attribute; 401 attribute = ldap_next_attribute(server, entryIterator, ber)) { 402 BerValue **vals = ldap_get_values_len(server, entryIterator, attribute); 403 404 if(vals != NULL) { 405 for(i = 0; (vals[i] != NULL); i++) { 406 Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\t", 1); 407 Curl_client_write(conn, CLIENTWRITE_BODY, (char *) attribute, 0); 408 Curl_client_write(conn, CLIENTWRITE_BODY, (char *)": ", 2); 409 dlsize += strlen(attribute)+3; 410 411 if((strlen(attribute) > 7) && 412 (strcmp(";binary", 413 (char *)attribute + 414 (strlen((char *)attribute) - 7)) == 0)) { 415 /* Binary attribute, encode to base64. */ 416 val_b64_sz = Curl_base64_encode(data, 417 vals[i]->bv_val, 418 vals[i]->bv_len, 419 &val_b64); 420 if(val_b64_sz > 0) { 421 Curl_client_write(conn, CLIENTWRITE_BODY, val_b64, val_b64_sz); 422 free(val_b64); 423 dlsize += val_b64_sz; 424 } 425 } 426 else { 427 Curl_client_write(conn, CLIENTWRITE_BODY, vals[i]->bv_val, 428 vals[i]->bv_len); 429 dlsize += vals[i]->bv_len; 430 } 431 Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\n", 0); 432 dlsize++; 433 } 434 435 /* Free memory used to store values */ 436 ldap_value_free_len(vals); 437 } 438 Curl_client_write(conn, CLIENTWRITE_BODY, (char *)"\n", 1); 439 dlsize++; 440 Curl_pgrsSetDownloadCounter(data, dlsize); 441 ldap_memfree(attribute); 442 } 443 ldap_memfree(dn); 444 if(ber) 445 ber_free(ber, 0); 446 } 447 448quit: 449 if(result) { 450 ldap_msgfree(result); 451 LDAP_TRACE (("Received %d entries\n", num)); 452 } 453 if(rc == LDAP_SIZELIMIT_EXCEEDED) 454 infof(data, "There are more than %d entries\n", num); 455 if(ludp) 456 ldap_free_urldesc(ludp); 457 if(server) 458 ldap_unbind_s(server); 459#if defined(HAVE_LDAP_SSL) && defined(CURL_HAS_NOVELL_LDAPSDK) 460 if(ldap_ssl) 461 ldapssl_client_deinit(); 462#endif /* HAVE_LDAP_SSL && CURL_HAS_NOVELL_LDAPSDK */ 463 464 /* no data to transfer */ 465 Curl_setup_transfer(conn, -1, -1, FALSE, NULL, -1, NULL); 466 conn->bits.close = TRUE; 467 468 return status; 469} 470 471#ifdef DEBUG_LDAP 472static void _ldap_trace (const char *fmt, ...) 473{ 474 static int do_trace = -1; 475 va_list args; 476 477 if(do_trace == -1) { 478 const char *env = getenv("CURL_TRACE"); 479 do_trace = (env && strtol(env, NULL, 10) > 0); 480 } 481 if(!do_trace) 482 return; 483 484 va_start (args, fmt); 485 vfprintf (stderr, fmt, args); 486 va_end (args); 487} 488#endif 489 490#ifndef HAVE_LDAP_URL_PARSE 491 492/* 493 * Return scope-value for a scope-string. 494 */ 495static int str2scope (const char *p) 496{ 497 if(strequal(p, "one")) 498 return LDAP_SCOPE_ONELEVEL; 499 if(strequal(p, "onetree")) 500 return LDAP_SCOPE_ONELEVEL; 501 if(strequal(p, "base")) 502 return LDAP_SCOPE_BASE; 503 if(strequal(p, "sub")) 504 return LDAP_SCOPE_SUBTREE; 505 if(strequal( p, "subtree")) 506 return LDAP_SCOPE_SUBTREE; 507 return (-1); 508} 509 510/* 511 * Split 'str' into strings separated by commas. 512 * Note: res[] points into 'str'. 513 */ 514static char **split_str (char *str) 515{ 516 char **res, *lasts, *s; 517 int i; 518 519 for(i = 2, s = strchr(str,','); s; i++) 520 s = strchr(++s,','); 521 522 res = calloc(i, sizeof(char*)); 523 if(!res) 524 return NULL; 525 526 for(i = 0, s = strtok_r(str, ",", &lasts); s; 527 s = strtok_r(NULL, ",", &lasts), i++) 528 res[i] = s; 529 return res; 530} 531 532/* 533 * Unescape the LDAP-URL components 534 */ 535static bool unescape_elements (void *data, LDAPURLDesc *ludp) 536{ 537 int i; 538 539 if(ludp->lud_filter) { 540 ludp->lud_filter = curl_easy_unescape(data, ludp->lud_filter, 0, NULL); 541 if(!ludp->lud_filter) 542 return (FALSE); 543 } 544 545 for(i = 0; ludp->lud_attrs && ludp->lud_attrs[i]; i++) { 546 ludp->lud_attrs[i] = curl_easy_unescape(data, ludp->lud_attrs[i], 0, NULL); 547 if(!ludp->lud_attrs[i]) 548 return (FALSE); 549 } 550 551 for(i = 0; ludp->lud_exts && ludp->lud_exts[i]; i++) { 552 ludp->lud_exts[i] = curl_easy_unescape(data, ludp->lud_exts[i], 0, NULL); 553 if(!ludp->lud_exts[i]) 554 return (FALSE); 555 } 556 557 if(ludp->lud_dn) { 558 char *dn = ludp->lud_dn; 559 char *new_dn = curl_easy_unescape(data, dn, 0, NULL); 560 561 free(dn); 562 ludp->lud_dn = new_dn; 563 if(!new_dn) 564 return (FALSE); 565 } 566 return (TRUE); 567} 568 569/* 570 * Break apart the pieces of an LDAP URL. 571 * Syntax: 572 * ldap://<hostname>:<port>/<base_dn>?<attributes>?<scope>?<filter>?<ext> 573 * 574 * <hostname> already known from 'conn->host.name'. 575 * <port> already known from 'conn->remote_port'. 576 * extract the rest from 'conn->data->state.path+1'. All fields are optional. 577 * e.g. 578 * ldap://<hostname>:<port>/?<attributes>?<scope>?<filter> 579 * yields ludp->lud_dn = "". 580 * 581 * Defined in RFC4516 section 2. 582 */ 583static int _ldap_url_parse2 (const struct connectdata *conn, LDAPURLDesc *ludp) 584{ 585 char *p, *q; 586 int i; 587 588 if(!conn->data || 589 !conn->data->state.path || 590 conn->data->state.path[0] != '/' || 591 !checkprefix("LDAP", conn->data->change.url)) 592 return LDAP_INVALID_SYNTAX; 593 594 ludp->lud_scope = LDAP_SCOPE_BASE; 595 ludp->lud_port = conn->remote_port; 596 ludp->lud_host = conn->host.name; 597 598 /* parse DN (Distinguished Name). 599 */ 600 ludp->lud_dn = strdup(conn->data->state.path+1); 601 if(!ludp->lud_dn) 602 return LDAP_NO_MEMORY; 603 604 p = strchr(ludp->lud_dn, '?'); 605 LDAP_TRACE (("DN '%.*s'\n", p ? (size_t)(p-ludp->lud_dn) : 606 strlen(ludp->lud_dn), ludp->lud_dn)); 607 608 if(!p) 609 goto success; 610 611 *p++ = '\0'; 612 613 /* parse attributes. skip "??". 614 */ 615 q = strchr(p, '?'); 616 if(q) 617 *q++ = '\0'; 618 619 if(*p && *p != '?') { 620 ludp->lud_attrs = split_str(p); 621 if(!ludp->lud_attrs) 622 return LDAP_NO_MEMORY; 623 624 for(i = 0; ludp->lud_attrs[i]; i++) 625 LDAP_TRACE (("attr[%d] '%s'\n", i, ludp->lud_attrs[i])); 626 } 627 628 p = q; 629 if(!p) 630 goto success; 631 632 /* parse scope. skip "??" 633 */ 634 q = strchr(p, '?'); 635 if(q) 636 *q++ = '\0'; 637 638 if(*p && *p != '?') { 639 ludp->lud_scope = str2scope(p); 640 if(ludp->lud_scope == -1) 641 return LDAP_INVALID_SYNTAX; 642 LDAP_TRACE (("scope %d\n", ludp->lud_scope)); 643 } 644 645 p = q; 646 if(!p) 647 goto success; 648 649 /* parse filter 650 */ 651 q = strchr(p, '?'); 652 if(q) 653 *q++ = '\0'; 654 if(!*p) 655 return LDAP_INVALID_SYNTAX; 656 657 ludp->lud_filter = p; 658 LDAP_TRACE (("filter '%s'\n", ludp->lud_filter)); 659 660 p = q; 661 if(!p) 662 goto success; 663 664 /* parse extensions 665 */ 666 ludp->lud_exts = split_str(p); 667 if(!ludp->lud_exts) 668 return LDAP_NO_MEMORY; 669 670 for(i = 0; ludp->lud_exts[i]; i++) 671 LDAP_TRACE (("exts[%d] '%s'\n", i, ludp->lud_exts[i])); 672 673 success: 674 if(!unescape_elements(conn->data, ludp)) 675 return LDAP_NO_MEMORY; 676 return LDAP_SUCCESS; 677} 678 679static int _ldap_url_parse (const struct connectdata *conn, 680 LDAPURLDesc **ludpp) 681{ 682 LDAPURLDesc *ludp = calloc(1, sizeof(*ludp)); 683 int rc; 684 685 *ludpp = NULL; 686 if(!ludp) 687 return LDAP_NO_MEMORY; 688 689 rc = _ldap_url_parse2 (conn, ludp); 690 if(rc != LDAP_SUCCESS) { 691 _ldap_free_urldesc(ludp); 692 ludp = NULL; 693 } 694 *ludpp = ludp; 695 return (rc); 696} 697 698static void _ldap_free_urldesc (LDAPURLDesc *ludp) 699{ 700 int i; 701 702 if(!ludp) 703 return; 704 705 if(ludp->lud_dn) 706 free(ludp->lud_dn); 707 708 if(ludp->lud_filter) 709 free(ludp->lud_filter); 710 711 if(ludp->lud_attrs) { 712 for(i = 0; ludp->lud_attrs[i]; i++) 713 free(ludp->lud_attrs[i]); 714 free(ludp->lud_attrs); 715 } 716 717 if(ludp->lud_exts) { 718 for(i = 0; ludp->lud_exts[i]; i++) 719 free(ludp->lud_exts[i]); 720 free(ludp->lud_exts); 721 } 722 free (ludp); 723} 724#endif /* !HAVE_LDAP_URL_PARSE */ 725#endif /* !CURL_DISABLE_LDAP && !USE_OPENLDAP */ 726