emacs/lisp/net/eudcb-bbdb.el

270 lines
10 KiB
EmacsLisp

;;; eudcb-bbdb.el --- Emacs Unified Directory Client - BBDB Backend -*- lexical-binding: t; -*-
;; Copyright (C) 1998-2024 Free Software Foundation, Inc.
;; Author: Oscar Figueiredo <oscar@cpe.fr>
;; Pavel Janík <Pavel@Janik.cz>
;; Maintainer: Thomas Fitzsimmons <fitzsim@fitzsim.org>
;; Keywords: comm
;; Package: eudc
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; This library provides an interface to use BBDB as a backend of
;; the Emacs Unified Directory Client.
;;; Code:
(require 'eudc)
;; Make it loadable on systems without bbdb.
(require 'bbdb nil t)
(require 'bbdb-com nil t)
(require 'seq)
;;{{{ Internal cooking
;; I don't like this but mapcar does not accept a parameter to the function and
;; I don't want to use mapcar*
(defvar eudc-bbdb-current-query nil)
(defvar eudc-bbdb-current-return-attributes nil)
(defun eudc-bbdb-field (field-symbol)
"Convert FIELD-SYMBOL so that it is recognized by the current BBDB version.
BBDB < 3 used `net'; BBDB >= 3 uses `mail'."
;; This just-in-time translation permits upgrading from BBDB 2 to
;; BBDB 3 without restarting Emacs.
(cond ((and (eq field-symbol 'net)
(eudc--using-bbdb-3-or-newer-p))
'mail)
((and (eq field-symbol 'company)
(eudc--using-bbdb-3-or-newer-p))
'organization)
(t field-symbol)))
(defvar eudc-bbdb-attributes-translation-alist
'((name . lastname)
(email . net)
(phone . phones))
"Alist mapping EUDC attribute names to BBDB names.")
(eudc-protocol-set 'eudc-query-function 'eudc-bbdb-query-internal 'bbdb)
(eudc-protocol-set 'eudc-list-attributes-function nil 'bbdb)
(eudc-protocol-set 'eudc-protocol-attributes-translation-alist
'eudc-bbdb-attributes-translation-alist 'bbdb)
(eudc-protocol-set 'eudc-bbdb-conversion-alist nil 'bbdb)
(eudc-protocol-set 'eudc-protocol-has-default-query-attributes nil 'bbdb)
(defun eudc-bbdb-format-query (query)
"Format a EUDC query alist into a list suitable to `bbdb-search'."
(let* ((firstname (cdr (assq 'firstname query)))
(lastname (cdr (assq 'lastname query)))
(name (or (and firstname lastname
(concat firstname " " lastname))
firstname
lastname))
(company (cdr (assq 'company query)))
(net (cdr (assq 'net query)))
(notes (cdr (assq 'notes query)))
(phone (cdr (assq 'phone query))))
(list name company net notes phone)))
(defun eudc-bbdb-filter-non-matching-record (record)
"Return RECORD if it matches `eudc-bbdb-current-query', nil otherwise."
(require 'bbdb)
(catch 'unmatch
(dolist (condition eudc-bbdb-current-query)
(let ((attr (car condition))
(val (cdr condition))
(case-fold-search t))
(or (and (memq attr '(firstname lastname aka company phones
addresses net))
(let ((bbdb-val
(funcall (intern (concat "bbdb-record-"
(symbol-name
(eudc-bbdb-field
attr))))
record)))
(if (listp bbdb-val)
(if eudc-bbdb-enable-substring-matches
(seq-some (lambda (subval)
(string-match val subval))
bbdb-val)
(member (downcase val)
(mapcar #'downcase bbdb-val)))
(if eudc-bbdb-enable-substring-matches
(string-match val bbdb-val)
(string-equal (downcase val) (downcase bbdb-val))))))
(throw 'unmatch nil))))
record))
;; External.
(declare-function bbdb-phone-location "ext:bbdb" t) ; via bbdb-defstruct
(declare-function bbdb-phone-string "ext:bbdb" (phone))
(declare-function bbdb-record-phones "ext:bbdb" t) ; via bbdb-defstruct
(declare-function bbdb-address-streets "ext:bbdb" t) ; via bbdb-defstruct
(declare-function bbdb-address-city "ext:bbdb" t) ; via bbdb-defstruct
(declare-function bbdb-address-state "ext:bbdb" t) ; via bbdb-defstruct
(declare-function bbdb-address-zip "ext:bbdb" t) ; via bbdb-defstruct
(declare-function bbdb-address-location "ext:bbdb" t) ; via bbdb-defstruct
(declare-function bbdb-record-addresses "ext:bbdb" t) ; via bbdb-defstruct
(declare-function bbdb-records "ext:bbdb"
(&optional dont-check-disk already-in-db-buffer))
(declare-function bbdb-record-notes "ext:bbdb" t) ; via bbdb-defstruct
;; External, BBDB >= 3.
(declare-function bbdb-phone-label "ext:bbdb" t) ; via bbdb-defstruct
(declare-function bbdb-record-phone "ext:bbdb" t) ; via bbdb-defstruct
(declare-function bbdb-record-address "ext:bbdb" t) ; via bbdb-defstruct
(declare-function bbdb-record-xfield "ext:bbdb" t) ; via bbdb-defstruct
(defun eudc-bbdb-extract-phones (record)
(require 'bbdb)
(mapcar (lambda (phone)
(if eudc-bbdb-use-locations-as-attribute-names
(cons (intern (if (eudc--using-bbdb-3-or-newer-p)
(bbdb-phone-label phone)
(bbdb-phone-location phone)))
(bbdb-phone-string phone))
(cons 'phones (format "%s: %s"
(if (eudc--using-bbdb-3-or-newer-p)
(bbdb-phone-label phone)
(bbdb-phone-location phone))
(bbdb-phone-string phone)))))
(if (eudc--using-bbdb-3-or-newer-p)
(bbdb-record-phone record)
(bbdb-record-phones record))))
(defun eudc-bbdb-extract-addresses (record)
(require 'bbdb)
(let (s c val)
(mapcar (lambda (address)
(setq c (bbdb-address-streets address))
(dotimes (n 3)
(unless (zerop (length (setq s (nth n c))))
(setq val (concat val s "\n"))))
(setq c (bbdb-address-city address)
s (bbdb-address-state address))
(setq val (concat val
(if (and (> (length c) 0) (> (length s) 0))
(concat c ", " s)
c)
" "
(bbdb-address-zip address)))
(if eudc-bbdb-use-locations-as-attribute-names
(cons (intern (bbdb-address-location address)) val)
(cons 'addresses (concat (bbdb-address-location address)
"\n" val))))
(if (eudc--using-bbdb-3-or-newer-p)
(bbdb-record-address record)
(bbdb-record-addresses record)))))
(defun eudc-bbdb-format-record-as-result (record)
"Format the BBDB RECORD as a EUDC query result record.
The record is filtered according to `eudc-bbdb-current-return-attributes'."
(require 'bbdb)
(let ((attrs (or eudc-bbdb-current-return-attributes
'(firstname lastname aka company phones addresses net notes)))
eudc-rec)
(dolist (attr attrs)
(let ((val
(pcase attr
('phones (eudc-bbdb-extract-phones record))
('addresses (eudc-bbdb-extract-addresses record))
('notes
(if (eudc--using-bbdb-3-or-newer-p)
(bbdb-record-xfield record 'notes)
(bbdb-record-notes record)))
((or 'firstname 'lastname 'aka 'company 'net)
(funcall (intern
(concat "bbdb-record-"
(symbol-name (eudc-bbdb-field attr))))
record))
(_
(error "Unknown BBDB attribute")))))
(cond
((or (not val) (equal val ""))) ; do nothing
((memq attr '(phones addresses))
(setq eudc-rec (append val eudc-rec)))
((and (listp val)
(= 1 (length val)))
(push (cons attr (car val)) eudc-rec))
((> (length val) 0)
(push (cons attr val) eudc-rec))
(t
(error "Unexpected attribute value")))))
(nreverse eudc-rec)))
(defun eudc-bbdb-query-internal (query &optional return-attrs)
"Query BBDB with QUERY.
QUERY is a list of cons cells (ATTR . VALUE) where ATTRs should be valid
BBDB attribute names.
RETURN-ATTRS is a list of attributes to return, defaulting to
`eudc-default-return-attributes'."
(require 'bbdb)
(let ((eudc-bbdb-current-query query)
(eudc-bbdb-current-return-attributes return-attrs)
(query-attrs (eudc-bbdb-format-query query))
bbdb-attrs
(records (bbdb-records))
result
filtered)
;; BBDB ORs its query attributes while EUDC ANDs them, hence we need to
;; call bbdb-search iteratively on the returned records for each of the
;; requested attributes
(while (and records (> (length query-attrs) 0))
(setq bbdb-attrs (append bbdb-attrs (list (car query-attrs))))
(if (car query-attrs)
;; BEWARE: `bbdb-search' is a macro!
(setq records (eval `(bbdb-search (quote ,records) ,@bbdb-attrs) t)))
(setq query-attrs (cdr query-attrs)))
(mapc (lambda (record)
(setq filtered (eudc-filter-duplicate-attributes record))
;; If there were duplicate attributes reverse the order of the
;; record so the unique attributes appear first
(if (> (length filtered) 1)
(setq filtered (mapcar #'reverse filtered)))
(setq result (append result filtered)))
(delq nil
(mapcar #'eudc-bbdb-format-record-as-result
(delq nil
(mapcar #'eudc-bbdb-filter-non-matching-record
records)))))
result))
;;}}}
;;{{{ High-level interfaces (interactive functions)
(defun eudc-bbdb-set-server (dummy)
"Set the EUDC server to BBDB."
(interactive)
(eudc-set-server dummy 'bbdb)
(message "BBDB server selected"))
;;}}}
(eudc-register-protocol 'bbdb)
(provide 'eudcb-bbdb)
;;; eudcb-bbdb.el ends here