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/*
* $Id: ldap.h 1012 2008-03-26 00:44:22Z hubert@u.washington.edu $
*
* ========================================================================
* Copyright 2013-2022 Eduardo Chappa
* Copyright 2006-2008 University of Washington
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* ========================================================================
*/
#ifndef PITH_LDAP_INCLUDED
#define PITH_LDAP_INCLUDED
#include "../pith/state.h"
#include "../pith/adrbklib.h"
#ifdef ENABLE_LDAP
/*
* This is used to consolidate related information about a server. This
* information is all stored in the ldap-servers variable, per server.
*/
typedef struct ldap_serv {
char *serv, /* Server name */
*base, /* Search base */
*binddn, /* Bind DN if non-anonymous */
*cust, /* Custom search filter */
*nick, /* Nickname */
*mail, /* Backup email address */
*mailattr, /* "Mail" attribute name */
*snattr, /* "Surname" attribute name */
*gnattr, /* "Givenname" attribute name */
*cnattr; /* "CommonName" attribute name */
int port, /* Port number */
time, /* Time limit */
size, /* Size limit */
impl, /* Use implicitly feature */
rhs, /* Lookup contents feature */
ref, /* Save by reference feature */
nosub, /* Disable space sub feature */
tls, /* Attempt TLS */
tlsmust, /* Require TLS */
ldaps, /* Require LDAPS */
type, /* Search type (surname...) */
srch, /* Search rule (contains...) */
scope; /* Scope of search (base...) */
} LDAP_SERV_S;
/*
* Structures to control the LDAP address selection screen
*
* We may run into the problem of LDAP databases containing non-UTF-8 data
* because they are old. They should have all UTF-8 data and that is what
* we are assuming. If we wanted to accommodate these servers we could
* translate the data when we use it. LDAP data is only used in a few
* places so it might not be too hard to fix it. There are four calls
* into the LDAP library that produce character strings which are
* supposed to be UTF-8. They are
* ldap_get_dn
* ldap_first_attribute
* ldap_next_attribute
* ldap_get_values_len
* We call those from a half dozen functions. We could fix it by
* having a directory-character-set per server and passing that around
* in the LDAP_SERV_RES_S structure, I think. For now, let's go with
* the assumption that everything is already UTF-8.
*/
typedef struct ldap_serv_results {
LDAP *ld; /* LDAP handle */
LDAPMessage *res; /* LDAP search result */
LDAP_SERV_S *info_used;
char *serv;
struct ldap_serv_results *next;
} LDAP_SERV_RES_S;
typedef struct addr_choose {
LDAP_SERV_RES_S *res_head;
char *title;
LDAP *selected_ld; /* from which ld was entry selected */
LDAPMessage *selected_entry; /* which entry was selected */
LDAP_SERV_S *info_used;
char *selected_serv;
} ADDR_CHOOSE_S;
/*
* This is very similar to LDAP_SERV_RES_S, but selected_entry
* is a single entry instead of a result list.
*/
typedef struct ldap_choose_results {
LDAP *ld; /* LDAP handle */
LDAPMessage *selected_entry;
LDAP_SERV_S *info_used;
char *serv;
} LDAP_CHOOSE_S;
/*
* How the LDAP lookup should work.
*/
typedef enum {AlwaysDisplay,
AlwaysDisplayAndMailRequired,
DisplayIfTwo,
DisplayIfOne,
DisplayForURL
} LDAPLookupStyle;
#define ALPINE_LDAP_can_use_num(X, Y) \
((X) != NULL && (X)[(Y)] != NULL \
&& (X)[(Y)]->bv_val != NULL \
&& (X)[(Y)]->bv_val[0] != '\0')
#define ALPINE_LDAP_can_use(X) ALPINE_LDAP_can_use_num((X), 0)
#define ALPINE_LDAP_usable(X, Y) ((Y) < ldap_count_values_len((X)) \
&& ALPINE_LDAP_can_use_num((X), (Y)))
#define LDAP_TYPE_CN 0
#define LDAP_TYPE_SUR 1
#define LDAP_TYPE_GIVEN 2
#define LDAP_TYPE_EMAIL 3
#define LDAP_TYPE_CN_EMAIL 4
#define LDAP_TYPE_SUR_GIVEN 5
#define LDAP_TYPE_SEVERAL 6
#define LDAP_SRCH_CONTAINS 0
#define LDAP_SRCH_EQUALS 1
#define LDAP_SRCH_BEGINS 2
#define LDAP_SRCH_ENDS 3
#define DEF_LDAP_TYPE 6
#define DEF_LDAP_SRCH 2
#define DEF_LDAP_TIME 30
#define DEF_LDAP_SIZE 0
#define DEF_LDAP_SCOPE LDAP_SCOPE_SUBTREE
#define DEF_LDAP_MAILATTR "mail"
#define DEF_LDAP_SNATTR "sn"
#define DEF_LDAP_GNATTR "givenname"
#define DEF_LDAP_CNATTR "cn"
#endif /* ENABLE_LDAP */
/*
* Error handling argument for white pages lookups.
*/
typedef struct wp_err {
char *error;
int wp_err_occurred;
int *mangled;
int ldap_errno;
} WP_ERR_S;
extern int wp_exit;
extern int wp_nobail;
/* exported prototypes */
ADDRESS *wp_lookups(char *, WP_ERR_S *, int);
#ifdef ENABLE_LDAP
int ldap_lookup_all(char *, int, int, LDAPLookupStyle, CUSTOM_FILT_S *,
LDAP_CHOOSE_S **, WP_ERR_S *, LDAP_SERV_RES_S **);
char *ldap_translate(char *, LDAP_SERV_S *);
char **berval_to_array(struct berval **);
ADDRESS *address_from_ldap(LDAP_CHOOSE_S *);
LDAP_SERV_S *break_up_ldap_server(char *);
void free_ldap_server_info(LDAP_SERV_S **);
void free_ldap_result_list(LDAP_SERV_RES_S **);
void our_ldap_memfree(void *);
void our_ldap_dn_memfree(void *);
int our_ldap_set_option(LDAP *, int, void *);
int ldap_v3_is_supported(LDAP *);
int ask_user_which_entry(LDAP_SERV_RES_S *, char *,
LDAP_CHOOSE_S **, WP_ERR_S *, LDAPLookupStyle);
LDAP_SERV_RES_S *ldap_lookup_all_work(char *, int, int, CUSTOM_FILT_S *, WP_ERR_S *);
/*
* This must be defined in the application
*/
int ldap_addr_select(struct pine *, ADDR_CHOOSE_S *, LDAP_CHOOSE_S **,
LDAPLookupStyle, WP_ERR_S *, char *);
#endif /* ENABLE_LDAP */
#endif /* PITH_LDAP_INCLUDED */
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