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1
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/*
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Olaf Wintermann <olaf.wintermann@gmail.com>
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2
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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Olaf Wintermann <olaf.wintermann@gmail.com>
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3
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*
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Olaf Wintermann <olaf.wintermann@gmail.com>
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4
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* Copyright 2023 Olaf Wintermann. All rights reserved.
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Olaf Wintermann <olaf.wintermann@gmail.com>
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5
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*
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Olaf Wintermann <olaf.wintermann@gmail.com>
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6
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* Redistribution and use in source and binary forms, with or without
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Olaf Wintermann <olaf.wintermann@gmail.com>
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7
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* modification, are permitted provided that the following conditions are met:
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Olaf Wintermann <olaf.wintermann@gmail.com>
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8
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*
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Olaf Wintermann <olaf.wintermann@gmail.com>
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9
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* 1. Redistributions of source code must retain the above copyright
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Olaf Wintermann <olaf.wintermann@gmail.com>
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10
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* notice, this list of conditions and the following disclaimer.
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Olaf Wintermann <olaf.wintermann@gmail.com>
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*
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Olaf Wintermann <olaf.wintermann@gmail.com>
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12
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* 2. Redistributions in binary form must reproduce the above copyright
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Olaf Wintermann <olaf.wintermann@gmail.com>
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13
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* notice, this list of conditions and the following disclaimer in the
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Olaf Wintermann <olaf.wintermann@gmail.com>
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14
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* documentation and/or other materials provided with the distribution.
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Olaf Wintermann <olaf.wintermann@gmail.com>
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15
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*
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Olaf Wintermann <olaf.wintermann@gmail.com>
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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Olaf Wintermann <olaf.wintermann@gmail.com>
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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Olaf Wintermann <olaf.wintermann@gmail.com>
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18
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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Olaf Wintermann <olaf.wintermann@gmail.com>
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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Olaf Wintermann <olaf.wintermann@gmail.com>
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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Olaf Wintermann <olaf.wintermann@gmail.com>
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21
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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Olaf Wintermann <olaf.wintermann@gmail.com>
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22
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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Olaf Wintermann <olaf.wintermann@gmail.com>
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23
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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Olaf Wintermann <olaf.wintermann@gmail.com>
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24
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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Olaf Wintermann <olaf.wintermann@gmail.com>
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25
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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Olaf Wintermann <olaf.wintermann@gmail.com>
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26
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* POSSIBILITY OF SUCH DAMAGE.
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Olaf Wintermann <olaf.wintermann@gmail.com>
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*/
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Olaf Wintermann <olaf.wintermann@gmail.com>
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#include "ldap.h"
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#include <time.h>
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#include <limits.h>
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#include "../util/util.h"
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35
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Olaf Wintermann <olaf.wintermann@gmail.com>
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36
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static int get_ldap_scope(const char *str) {
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Olaf Wintermann <olaf.wintermann@gmail.com>
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37
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// search scope: base, onelevel, subtree, children
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38
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if(!strcmp(str, "base")) {
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Olaf Wintermann <olaf.wintermann@gmail.com>
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return LDAP_SCOPE_BASE;
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Olaf Wintermann <olaf.wintermann@gmail.com>
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40
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} else if(!strcmp(str, "onelevel")) {
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Olaf Wintermann <olaf.wintermann@gmail.com>
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return LDAP_SCOPE_ONELEVEL;
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Olaf Wintermann <olaf.wintermann@gmail.com>
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42
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} else if(!strcmp(str, "subtree")) {
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Olaf Wintermann <olaf.wintermann@gmail.com>
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return LDAP_SCOPE_SUBTREE;
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Olaf Wintermann <olaf.wintermann@gmail.com>
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44
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} else if(!strcmp(str, "children")) {
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Olaf Wintermann <olaf.wintermann@gmail.com>
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return LDAP_SCOPE_CHILDREN;
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Olaf Wintermann <olaf.wintermann@gmail.com>
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46
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}
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Olaf Wintermann <olaf.wintermann@gmail.com>
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47
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return -1;
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Olaf Wintermann <olaf.wintermann@gmail.com>
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48
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}
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Olaf Wintermann <olaf.wintermann@gmail.com>
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49
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50
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int ldap_query_saf(pblock *pb, Session *sn, Request *rq) {
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char *resource_name = pblock_findval("resource", pb);
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Olaf Wintermann <olaf.wintermann@gmail.com>
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52
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char *basedn = pblock_findval("basedn", pb);
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Olaf Wintermann <olaf.wintermann@gmail.com>
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53
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char *binddn = pblock_findval("bindnd", pb);
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Olaf Wintermann <olaf.wintermann@gmail.com>
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54
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char *bindpw = pblock_findval("bindpw", pb);
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Olaf Wintermann <olaf.wintermann@gmail.com>
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55
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char *ldap_query = pblock_findval("query", pb);
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Olaf Wintermann <olaf.wintermann@gmail.com>
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56
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char *empty_query_error = pblock_findval("empty_query_error", pb);
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char *empty_result_error = pblock_findval("empty_result_error", pb);
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Olaf Wintermann <olaf.wintermann@gmail.com>
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58
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char *scope_str = pblock_findval("scope", pb);
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Olaf Wintermann <olaf.wintermann@gmail.com>
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59
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char *timeout_str = pblock_findval("timeout", pb);
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Olaf Wintermann <olaf.wintermann@gmail.com>
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60
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char *sizelimit_str = pblock_findval("sizelimit", pb);
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Olaf Wintermann <olaf.wintermann@gmail.com>
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61
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Olaf Wintermann <olaf.wintermann@gmail.com>
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62
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int status_empty_query = WS_SAFS_LDAP_EMPTY_QUERY_ERROR;
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63
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int status_empty_result = WS_SAFS_LDAP_EMPTY_RESULT_ERROR;
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Olaf Wintermann <olaf.wintermann@gmail.com>
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64
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Olaf Wintermann <olaf.wintermann@gmail.com>
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65
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if(empty_query_error) {
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Olaf Wintermann <olaf.wintermann@gmail.com>
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66
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int64_t status = 0;
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Olaf Wintermann <olaf.wintermann@gmail.com>
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67
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util_strtoint(empty_query_error, &status);
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Olaf Wintermann <olaf.wintermann@gmail.com>
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68
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if(status < 200 || status > 999) {
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69
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log_ereport(LOG_MISCONFIG, "ldap-query: empty_query_error parameter must be an integer between 200 and 999");
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return REQ_ABORTED;
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71
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}
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status_empty_query = status;
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73
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}
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74
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if(empty_result_error) {
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75
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int64_t status = 0;
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Olaf Wintermann <olaf.wintermann@gmail.com>
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76
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util_strtoint(empty_result_error, &status);
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Olaf Wintermann <olaf.wintermann@gmail.com>
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77
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if(status < 200 || status > 999) {
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78
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log_ereport(LOG_MISCONFIG, "ldap-query: empty_result_error parameter must be an integer between 200 and 999");
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Olaf Wintermann <olaf.wintermann@gmail.com>
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79
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return REQ_ABORTED;
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Olaf Wintermann <olaf.wintermann@gmail.com>
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80
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}
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Olaf Wintermann <olaf.wintermann@gmail.com>
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81
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status_empty_result = status;
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82
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}
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83
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Olaf Wintermann <olaf.wintermann@gmail.com>
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84
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// should we sent an empty response in case of an empty query/result
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Olaf Wintermann <olaf.wintermann@gmail.com>
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85
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// or the standard error message?
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Olaf Wintermann <olaf.wintermann@gmail.com>
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86
|
WSBool empty_query_response = status_empty_query < 300 ? TRUE : FALSE;
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Olaf Wintermann <olaf.wintermann@gmail.com>
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|
87
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WSBool empty_result_response = status_empty_result < 300 ? TRUE : FALSE;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
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|
88
|
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Olaf Wintermann <olaf.wintermann@gmail.com>
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89
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int scope = WS_SAFS_LDAP_DEFAULT_SCOPE;
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Olaf Wintermann <olaf.wintermann@gmail.com>
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|
90
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if(scope_str) {
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Olaf Wintermann <olaf.wintermann@gmail.com>
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|
91
|
scope = get_ldap_scope(scope_str);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
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|
92
|
if(scope < 0) {
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
93
|
log_ereport(LOG_MISCONFIG, "ldap-query: unknown scope %s", scope_str);
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
94
|
return REQ_ABORTED;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
95
|
}
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
96
|
}
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
97
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int timeout = WS_SAFS_LDAP_DEFAULT_TIMEOUT;
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Olaf Wintermann <olaf.wintermann@gmail.com>
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|
98
|
if(timeout_str) {
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Olaf Wintermann <olaf.wintermann@gmail.com>
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|
99
|
int64_t t;
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Olaf Wintermann <olaf.wintermann@gmail.com>
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|
100
|
if(util_strtoint(timeout_str, &t)) {
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
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|
101
|
if(t < 0 || t > WS_SAFS_LDAP_MAX_TIMEOUT) {
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Olaf Wintermann <olaf.wintermann@gmail.com>
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102
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log_ereport(LOG_MISCONFIG, "ldap-query: timeout out of range");
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
103
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return REQ_ABORTED;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
104
|
}
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
105
|
timeout = t;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
106
|
} else {
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
107
|
log_ereport(LOG_MISCONFIG, "ldap-query: timeout %s is not a number", timeout_str);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
108
|
}
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
109
|
}
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
110
|
int sizelimit = WS_SAFS_LDAP_DEFAULT_SIZELIMIT;
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
111
|
if(timeout_str) {
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
112
|
int64_t v;
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
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|
113
|
if(util_strtoint(timeout_str, &v)) {
|
Olaf Wintermann <olaf.wintermann@gmail.com>
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changeset
|
114
|
if(v > INT_MAX) {
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
115
|
log_ereport(LOG_MISCONFIG, "ldap-query: sizelimit out of range");
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
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|
116
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return REQ_ABORTED;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
117
|
}
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
118
|
sizelimit = v;
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
119
|
} else {
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
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|
120
|
log_ereport(LOG_MISCONFIG, "ldap-query: sizelimit %s is not a number", timeout_str);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
121
|
}
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
122
|
}
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
123
|
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
124
|
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
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|
125
|
if(!resource_name) {
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
126
|
log_ereport(LOG_MISCONFIG, "ldap-query: missing resource parameter");
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
127
|
return REQ_ABORTED;
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
128
|
}
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
129
|
if(!basedn) {
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
130
|
log_ereport(LOG_MISCONFIG, "ldap-query: missing basedn parameter");
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
131
|
return REQ_ABORTED;
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
132
|
}
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
133
|
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
134
|
if(!ldap_query) {
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
135
|
// alternatively get query from rq->vars
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
136
|
ldap_query = pblock_findval("ldap_query", rq->vars);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
137
|
if(!ldap_query) {
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
138
|
// no ldap query
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
139
|
protocol_status(sn, rq, status_empty_query, NULL);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
140
|
if(empty_query_response) {
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
141
|
pblock_nvinsert("content-length", "0", rq->srvhdrs);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
142
|
http_start_response(sn, rq);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
143
|
}
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
144
|
return REQ_PROCEED;
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
145
|
}
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
146
|
}
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
147
|
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
148
|
// get the resource
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
149
|
ResourceData *resdata = resourcepool_lookup(sn, rq, resource_name, 0);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
150
|
if(!resdata) {
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
151
|
log_ereport(LOG_FAILURE, "ldap-query: cannot get resource %s", resource_name);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
152
|
return REQ_ABORTED;
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
153
|
}
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
154
|
LDAP *ldap = resdata->data;
|
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155
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156
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// optionally, use binddn
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157
|
if(binddn) {
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158
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struct berval *server_cred;
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if(ws_ldap_bind(ldap, binddn, bindpw ? bindpw : "", &server_cred) != LDAP_SUCCESS) {
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160
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log_ereport(LOG_FAILURE, "ldap-query: resource %s: cannot bind %s", resource_name, binddn);
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161
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resourcepool_free(sn, rq, resdata);
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162
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return REQ_ABORTED;
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163
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}
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164
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}
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165
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166
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167
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// search
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168
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LDAPMessage *result;
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169
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struct timeval ts;
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ts.tv_sec = timeout;
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171
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ts.tv_usec = 0;
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172
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int r = ldap_search_ext_s(
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173
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ldap,
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174
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basedn,
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175
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LDAP_SCOPE_SUBTREE,
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176
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ldap_query,
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177
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NULL,
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178
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0,
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179
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NULL, // server controls
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180
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NULL, // client controls
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181
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&ts,
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182
|
sizelimit, // size limit
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183
|
&result);
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184
|
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185
|
if(r != LDAP_SUCCESS) {
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186
|
if(result) {
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187
|
ldap_msgfree(result);
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188
|
}
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189
|
log_ereport(LOG_FAILURE, "ldap-query: ldap error: %s", ldap_err2string(r));
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190
|
return REQ_ABORTED;
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parents:
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191
|
}
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parents:
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|
192
|
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parents:
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|
193
|
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194
|
// send http header
|
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195
|
protocol_status(sn, rq, 200, NULL);
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|
196
|
|
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|
197
|
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198
|
LDAPMessage *msg = ldap_first_entry(ldap, result);
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|
199
|
if(!msg) {
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|
200
|
protocol_status(sn, rq, status_empty_result, NULL);
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parents:
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|
201
|
if(empty_result_response) {
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202
|
pblock_nvinsert("content-length", "0", rq->srvhdrs);
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parents:
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|
203
|
}
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|
204
|
} else {
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|
205
|
protocol_status(sn, rq, 200, NULL);
|
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|
206
|
}
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parents:
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|
207
|
http_start_response(sn, rq);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
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|
208
|
|
Olaf Wintermann <olaf.wintermann@gmail.com>
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|
209
|
while(msg) {
|
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parents:
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|
210
|
// dn
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
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|
211
|
char *dn = ldap_get_dn(ldap, msg);
|
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parents:
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|
212
|
if(dn) {
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
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|
213
|
net_printf(sn->csd, "dn: %s\n", dn);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
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|
214
|
ldap_memfree(dn);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
215
|
}
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
216
|
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
217
|
// get attributes
|
Olaf Wintermann <olaf.wintermann@gmail.com>
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|
218
|
BerElement *ber = NULL;
|
Olaf Wintermann <olaf.wintermann@gmail.com>
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|
219
|
char *attribute = attribute=ldap_first_attribute(ldap, msg, &ber);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
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|
220
|
while(attribute != NULL) {
|
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parents:
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|
221
|
struct berval **values = ldap_get_values_len(ldap, msg, attribute);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
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|
222
|
if(values) {
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
223
|
int count = ldap_count_values_len(values);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
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|
224
|
for(int i=0;i<count;i++) {
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
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|
225
|
cxstring value = cx_strn(values[i]->bv_val, values[i]->bv_len);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
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|
226
|
net_printf(sn->csd, "%s: %.*s\n", attribute, (int)value.length, value.ptr);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
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|
227
|
}
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
228
|
ldap_value_free_len(values);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
229
|
}
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
230
|
ldap_memfree(attribute);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
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|
231
|
attribute = ldap_next_attribute(ldap, msg, ber);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
232
|
}
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
233
|
if(ber) {
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
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|
234
|
ber_free(ber, 0);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
235
|
}
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
236
|
net_printf(sn->csd, "\n");
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
237
|
msg = ldap_next_entry(ldap, msg);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
238
|
}
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
239
|
ldap_msgfree(result);
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
240
|
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
241
|
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
242
|
return REQ_PROCEED;
|
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
243
|
}
|