;; Author: Oscar Figueiredo <Oscar.Figueiredo@di.epfl.ch>
;; Maintainer: Oscar Figueiredo <Oscar.Figueiredo@di.epfl.ch>
;; Created: Jan 1998
-;; Version: $Revision: 1.7.2.1 $
+;; Version: $Revision: 1.7.2.3 $
;; Keywords: help comm
;; This file is part of XEmacs
;;; Code:
-(eval-when '(load eval)
- (require 'ldap))
+(defgroup ldap nil
+ "Lightweight Directory Access Protocol"
+ :group 'comm)
-(defvar ldap-default-host nil
- "*Default LDAP server.")
+(defcustom ldap-default-host nil
+ "*Default LDAP server hostname.
+A TCP port number can be appended to that name using a colon as
+a separator."
+ :type '(choice (string :tag "Host name")
+ (const :tag "Use library default" nil))
+ :group 'ldap)
-(defvar ldap-host-parameters-alist nil
- "*An alist of per host options for LDAP transactions
-The list elements look like (HOST PROP1 VAL1 PROP2 VAL2 ...)
-HOST is the name of an LDAP server. PROPn and VALn are property/value pairs
-describing parameters for the server. Valid properties:
+(defcustom ldap-default-port nil
+ "*Default TCP port for LDAP connections.
+Initialized from the LDAP library at build time. Default value is 389."
+ :type '(choice (const :tag "Use library default" nil)
+ (integer :tag "Port number"))
+ :group 'ldap)
+
+(defcustom ldap-default-base nil
+ "*Default base for LDAP searches.
+This is a string using the syntax of RFC 1779.
+For instance, \"o=ACME, c=US\" limits the search to the
+Acme organization in the United States."
+ :type '(choice (const :tag "Use library default" nil)
+ (string :tag "Search base"))
+ :group 'ldap)
+
+
+(defcustom ldap-host-parameters-alist nil
+ "*Alist of host-specific options for LDAP transactions.
+The format of each list element is:
+\(HOST PROP1 VAL1 PROP2 VAL2 ...)
+HOST is the hostname of an LDAP server (with an optional TCP port number
+appended to it using a colon as a separator).
+PROPn and VALn are property/value pairs describing parameters for the server.
+Valid properties include:
`binddn' is the distinguished name of the user to bind as
(in RFC 1779 syntax).
`passwd' is the password to use for simple authentication.
`scope' is one of the three symbols `subtree', `base' or `onelevel'.
`deref' is one of the symbols `never', `always', `search' or `find'.
`timelimit' is the timeout limit for the connection in seconds.
- `sizelimit' is the maximum number of matches to return." )
+ `sizelimit' is the maximum number of matches to return."
+ :type '(repeat :menu-tag "Host parameters"
+ :tag "Host parameters"
+ (list :menu-tag "Host parameters"
+ :tag "Host parameters"
+ :value nil
+ (string :tag "Host name")
+ (checklist :inline t
+ :greedy t
+ (list
+ :tag "Search Base"
+ :inline t
+ (const :tag "Search Base" base)
+ string)
+ (list
+ :tag "Binding DN"
+ :inline t
+ (const :tag "Binding DN" binddn)
+ string)
+ (list
+ :tag "Password"
+ :inline t
+ (const :tag "Password" passwd)
+ string)
+ (list
+ :tag "Authentication Method"
+ :inline t
+ (const :tag "Authentication Method" auth)
+ (choice
+ (const :menu-tag "None" :tag "None" nil)
+ (const :menu-tag "Simple" :tag "Simple" simple)
+ (const :menu-tag "Kerberos 4.1" :tag "Kerberos 4.1" krbv41)
+ (const :menu-tag "Kerberos 4.2" :tag "Kerberos 4.2" krbv42)))
+ (list
+ :tag "Search Scope"
+ :inline t
+ (const :tag "Search Scope" scope)
+ (choice
+ (const :menu-tag "Default" :tag "Default" nil)
+ (const :menu-tag "Subtree" :tag "Subtree" subtree)
+ (const :menu-tag "Base" :tag "Base" base)
+ (const :menu-tag "One Level" :tag "One Level" onelevel)))
+ (list
+ :tag "Dereferencing"
+ :inline t
+ (const :tag "Dereferencing" deref)
+ (choice
+ (const :menu-tag "Default" :tag "Default" nil)
+ (const :menu-tag "Never" :tag "Never" never)
+ (const :menu-tag "Always" :tag "Always" always)
+ (const :menu-tag "When searching" :tag "When searching" search)
+ (const :menu-tag "When locating base" :tag "When locating base" find)))
+ (list
+ :tag "Time Limit"
+ :inline t
+ (const :tag "Time Limit" timelimit)
+ (integer :tag "(in seconds)"))
+ (list
+ :tag "Size Limit"
+ :inline t
+ (const :tag "Size Limit" sizelimit)
+ (integer :tag "(number of records)")))))
+:group 'ldap)
+
+(defcustom ldap-ignore-attribute-codings nil
+ "*If non-nil, do not perform any encoding/decoding on LDAP attribute values."
+ :type 'boolean
+ :group 'ldap)
+
+(defcustom ldap-default-attribute-decoder nil
+ "*Decoder function to use for attributes whose syntax is unknown."
+ :type 'symbol
+ :group 'ldap)
+
+(defcustom ldap-coding-system (if (featurep 'mule)
+ 'utf-8
+ nil)
+ "*Coding system of LDAP string values.
+LDAP v3 specifies the coding system of strings to be UTF-8.
+Mule support is needed for this."
+ :type 'symbol
+ :group 'ldap)
+
+(defvar ldap-attribute-syntax-encoders
+ [nil ; 1 ACI Item N
+ nil ; 2 Access Point Y
+ nil ; 3 Attribute Type Description Y
+ nil ; 4 Audio N
+ nil ; 5 Binary N
+ nil ; 6 Bit String Y
+ ldap-encode-boolean ; 7 Boolean Y
+ nil ; 8 Certificate N
+ nil ; 9 Certificate List N
+ nil ; 10 Certificate Pair N
+ ldap-encode-country-string ; 11 Country String Y
+ ldap-encode-string ; 12 DN Y
+ nil ; 13 Data Quality Syntax Y
+ nil ; 14 Delivery Method Y
+ ldap-encode-string ; 15 Directory String Y
+ nil ; 16 DIT Content Rule Description Y
+ nil ; 17 DIT Structure Rule Description Y
+ nil ; 18 DL Submit Permission Y
+ nil ; 19 DSA Quality Syntax Y
+ nil ; 20 DSE Type Y
+ nil ; 21 Enhanced Guide Y
+ nil ; 22 Facsimile Telephone Number Y
+ nil ; 23 Fax N
+ nil ; 24 Generalized Time Y
+ nil ; 25 Guide Y
+ nil ; 26 IA5 String Y
+ number-to-string ; 27 INTEGER Y
+ nil ; 28 JPEG N
+ nil ; 29 Master And Shadow Access Points Y
+ nil ; 30 Matching Rule Description Y
+ nil ; 31 Matching Rule Use Description Y
+ nil ; 32 Mail Preference Y
+ nil ; 33 MHS OR Address Y
+ nil ; 34 Name And Optional UID Y
+ nil ; 35 Name Form Description Y
+ nil ; 36 Numeric String Y
+ nil ; 37 Object Class Description Y
+ nil ; 38 OID Y
+ nil ; 39 Other Mailbox Y
+ nil ; 40 Octet String Y
+ ldap-encode-address ; 41 Postal Address Y
+ nil ; 42 Protocol Information Y
+ nil ; 43 Presentation Address Y
+ ldap-encode-string ; 44 Printable String Y
+ nil ; 45 Subtree Specification Y
+ nil ; 46 Supplier Information Y
+ nil ; 47 Supplier Or Consumer Y
+ nil ; 48 Supplier And Consumer Y
+ nil ; 49 Supported Algorithm N
+ nil ; 50 Telephone Number Y
+ nil ; 51 Teletex Terminal Identifier Y
+ nil ; 52 Telex Number Y
+ nil ; 53 UTC Time Y
+ nil ; 54 LDAP Syntax Description Y
+ nil ; 55 Modify Rights Y
+ nil ; 56 LDAP Schema Definition Y
+ nil ; 57 LDAP Schema Description Y
+ nil ; 58 Substring Assertion Y
+ ]
+ "A vector of functions used to encode LDAP attribute values.
+The sequence of functions corresponds to the sequence of LDAP attribute syntax
+object identifiers of the form 1.3.6.1.4.1.1466.1115.121.1.* as defined in
+RFC2252 section 4.3.2")
+
+(defvar ldap-attribute-syntax-decoders
+ [nil ; 1 ACI Item N
+ nil ; 2 Access Point Y
+ nil ; 3 Attribute Type Description Y
+ nil ; 4 Audio N
+ nil ; 5 Binary N
+ nil ; 6 Bit String Y
+ ldap-decode-boolean ; 7 Boolean Y
+ nil ; 8 Certificate N
+ nil ; 9 Certificate List N
+ nil ; 10 Certificate Pair N
+ ldap-decode-string ; 11 Country String Y
+ ldap-decode-string ; 12 DN Y
+ nil ; 13 Data Quality Syntax Y
+ nil ; 14 Delivery Method Y
+ ldap-decode-string ; 15 Directory String Y
+ nil ; 16 DIT Content Rule Description Y
+ nil ; 17 DIT Structure Rule Description Y
+ nil ; 18 DL Submit Permission Y
+ nil ; 19 DSA Quality Syntax Y
+ nil ; 20 DSE Type Y
+ nil ; 21 Enhanced Guide Y
+ nil ; 22 Facsimile Telephone Number Y
+ nil ; 23 Fax N
+ nil ; 24 Generalized Time Y
+ nil ; 25 Guide Y
+ nil ; 26 IA5 String Y
+ string-to-number ; 27 INTEGER Y
+ nil ; 28 JPEG N
+ nil ; 29 Master And Shadow Access Points Y
+ nil ; 30 Matching Rule Description Y
+ nil ; 31 Matching Rule Use Description Y
+ nil ; 32 Mail Preference Y
+ nil ; 33 MHS OR Address Y
+ nil ; 34 Name And Optional UID Y
+ nil ; 35 Name Form Description Y
+ nil ; 36 Numeric String Y
+ nil ; 37 Object Class Description Y
+ nil ; 38 OID Y
+ nil ; 39 Other Mailbox Y
+ nil ; 40 Octet String Y
+ ldap-decode-address ; 41 Postal Address Y
+ nil ; 42 Protocol Information Y
+ nil ; 43 Presentation Address Y
+ ldap-decode-string ; 44 Printable String Y
+ nil ; 45 Subtree Specification Y
+ nil ; 46 Supplier Information Y
+ nil ; 47 Supplier Or Consumer Y
+ nil ; 48 Supplier And Consumer Y
+ nil ; 49 Supported Algorithm N
+ nil ; 50 Telephone Number Y
+ nil ; 51 Teletex Terminal Identifier Y
+ nil ; 52 Telex Number Y
+ nil ; 53 UTC Time Y
+ nil ; 54 LDAP Syntax Description Y
+ nil ; 55 Modify Rights Y
+ nil ; 56 LDAP Schema Definition Y
+ nil ; 57 LDAP Schema Description Y
+ nil ; 58 Substring Assertion Y
+ ]
+ "A vector of functions used to decode LDAP attribute values.
+The sequence of functions corresponds to the sequence of LDAP attribute syntax
+object identifiers of the form 1.3.6.1.4.1.1466.1115.121.1.* as defined in
+RFC2252 section 4.3.2")
+
+
+(defvar ldap-attribute-syntaxes-alist
+ '((createtimestamp . 24)
+ (modifytimestamp . 24)
+ (creatorsname . 12)
+ (modifiersname . 12)
+ (subschemasubentry . 12)
+ (attributetypes . 3)
+ (objectclasses . 37)
+ (matchingrules . 30)
+ (matchingruleuse . 31)
+ (namingcontexts . 12)
+ (altserver . 26)
+ (supportedextension . 38)
+ (supportedcontrol . 38)
+ (supportedsaslmechanisms . 15)
+ (supportedldapversion . 27)
+ (ldapsyntaxes . 16)
+ (ditstructurerules . 17)
+ (nameforms . 35)
+ (ditcontentrules . 16)
+ (objectclass . 38)
+ (aliasedobjectname . 12)
+ (cn . 15)
+ (sn . 15)
+ (serialnumber . 44)
+ (c . 15)
+ (l . 15)
+ (st . 15)
+ (street . 15)
+ (o . 15)
+ (ou . 15)
+ (title . 15)
+ (description . 15)
+ (searchguide . 25)
+ (businesscategory . 15)
+ (postaladdress . 41)
+ (postalcode . 15)
+ (postofficebox . 15)
+ (physicaldeliveryofficename . 15)
+ (telephonenumber . 50)
+ (telexnumber . 52)
+ (telexterminalidentifier . 51)
+ (facsimiletelephonenumber . 22)
+ (x121address . 36)
+ (internationalisdnnumber . 36)
+ (registeredaddress . 41)
+ (destinationindicator . 44)
+ (preferreddeliverymethod . 14)
+ (presentationaddress . 43)
+ (supportedapplicationcontext . 38)
+ (member . 12)
+ (owner . 12)
+ (roleoccupant . 12)
+ (seealso . 12)
+ (userpassword . 40)
+ (usercertificate . 8)
+ (cacertificate . 8)
+ (authorityrevocationlist . 9)
+ (certificaterevocationlist . 9)
+ (crosscertificatepair . 10)
+ (name . 15)
+ (givenname . 15)
+ (initials . 15)
+ (generationqualifier . 15)
+ (x500uniqueidentifier . 6)
+ (dnqualifier . 44)
+ (enhancedsearchguide . 21)
+ (protocolinformation . 42)
+ (distinguishedname . 12)
+ (uniquemember . 34)
+ (houseidentifier . 15)
+ (supportedalgorithms . 49)
+ (deltarevocationlist . 9)
+ (dmdname . 15))
+ "A map of LDAP attribute names to their type object id minor number.
+This table is built from RFC2252 Section 5 and RFC2256 Section 5")
+
+
+;; Coding/decoding functions
+(defun ldap-encode-boolean (bool)
+ (if bool
+ "TRUE"
+ "FALSE"))
-(defun ldap-search (filter &optional host attributes attrsonly)
+(defun ldap-decode-boolean (str)
+ (cond
+ ((string-equal str "TRUE")
+ t)
+ ((string-equal str "FALSE")
+ nil)
+ (t
+ (error "Wrong LDAP boolean string: %s" str))))
+
+(defun ldap-encode-country-string (str)
+ ;; We should do something useful here...
+ (if (not (= 2 (length str)))
+ (error "Invalid country string: %s" str)))
+
+(defun ldap-decode-string (str)
+ (decode-coding-string str ldap-coding-system))
+
+(defun ldap-encode-string (str)
+ (encode-coding-string str ldap-coding-system))
+
+(defun ldap-decode-address (str)
+ (mapconcat 'ldap-decode-string
+ (split-string str "\\$")
+ "\n"))
+
+(defun ldap-encode-address (str)
+ (mapconcat 'ldap-encode-string
+ (split-string str "\n")
+ "$"))
+
+
+;; LDAP protocol functions
+
+(defun ldap-get-host-parameter (host parameter)
+ "Get the value of PARAMETER for HOST in `ldap-host-parameters-alist'."
+ (plist-get (cdr (assoc host ldap-host-parameters-alist))
+ parameter))
+
+(defun ldap-decode-attribute (attr)
+ "Decode the attribute/value pair ATTR according to LDAP rules.
+The attribute name is looked up in `ldap-attribute-syntaxes-alist'
+and the corresponding decoder is then retrieved from
+`ldap-attribute-syntax-decoders' and applied on the value(s)."
+ (let* ((name (car attr))
+ (values (cdr attr))
+ (syntax-id (cdr (assq (intern (downcase name))
+ ldap-attribute-syntaxes-alist)))
+ decoder)
+ (if syntax-id
+ (setq decoder (aref ldap-attribute-syntax-decoders
+ (1- syntax-id)))
+ (setq decoder ldap-default-attribute-decoder))
+ (if decoder
+ (cons name (mapcar decoder values))
+ attr)))
+
+
+(defun ldap-search (filter &optional host attributes attrsonly withdn)
"Perform an LDAP search.
-FILTER is the search filter in RFC1558 syntax
-HOST is the LDAP host on which to perform the search
-ATTRIBUTES is a list of the specific attributes to retrieve,
-nil means retrieve all
-ATTRSONLY if non nil retrieves the attributes only without
+FILTER is the search filter in RFC1558 syntax, i.e., something that
+looks like \"(cn=John Smith)\".
+HOST is the LDAP host on which to perform the search.
+ATTRIBUTES is a list of attributes to retrieve; nil means retrieve all.
+If ATTRSONLY is non nil, the attributes will be retrieved without
the associated values.
+If WITHDN is non-nil each entry in the result will be prepennded with
+its distinguished name DN.
Additional search parameters can be specified through
-`ldap-host-parameters-alist' which see."
+`ldap-host-parameters-alist' which see.
+The function returns a list of matching entries. Each entry is itself
+an alist of attribute/value pairs optionally preceded by the DN of the
+entry according to the value of WITHDN."
(interactive "sFilter:")
- (let (host-plist res ldap)
- (if (null host)
- (setq host ldap-default-host))
- (if (null host)
- (error "No LDAP host specified"))
- (setq host-plist
- (cdr (assoc host ldap-host-parameters-alist)))
+ (or host
+ (setq host ldap-default-host)
+ (error "No LDAP host specified"))
+ (let ((host-plist (cdr (assoc host ldap-host-parameters-alist)))
+ ldap
+ result)
(message "Opening LDAP connection to %s..." host)
(setq ldap (ldap-open host host-plist))
(message "Searching with LDAP on %s..." host)
- (setq res (ldap-search-internal ldap filter
- (plist-get host-plist 'base)
- (plist-get host-plist 'scope)
- attributes attrsonly))
+ (setq result (ldap-search-internal ldap filter
+ (plist-get host-plist 'base)
+ (plist-get host-plist 'scope)
+ attributes attrsonly withdn))
(ldap-close ldap)
- res))
-
-
+ (if ldap-ignore-attribute-codings
+ result
+ (mapcar (function
+ (lambda (record)
+ (mapcar 'ldap-decode-attribute record)))
+ result))))
(provide 'ldap)
-
+
;;; ldap.el ends here