elmo/elmo-pop3.el

   1 ;;; elmo-pop3.el -- POP3 Interface for ELMO.
   2
   3 ;; Copyright (C) 1998,1999,2000 Yuuichi Teranishi <teranisi@gohome.org>
   4 ;; Copyright (C) 1999,2000      Kenichi OKADA <okada@opaopa.org>
   5
   6 ;; Author: Yuuichi Teranishi <teranisi@gohome.org>
   7 ;;      Kenichi OKADA <okada@opaopa.org>
   8 ;; Keywords: mail, net news
   9
  10 ;; This file is part of ELMO (Elisp Library for Message Orchestration).
  11
  12 ;; This program is free software; you can redistribute it and/or modify
  13 ;; it under the terms of the GNU General Public License as published by
  14 ;; the Free Software Foundation; either version 2, or (at your option)
  15 ;; any later version.
  16 ;;
  17 ;; This program is distributed in the hope that it will be useful,
  18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ;; GNU General Public License for more details.
  21 ;;
  22 ;; You should have received a copy of the GNU General Public License
  23 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  24 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  25 ;; Boston, MA 02111-1307, USA.
  26 ;;
  27
  28 ;;; Commentary:
  29 ;;
  30
  31 ;;; Code:
  32 ;;
  33
  34 (require 'elmo-msgdb)
  35 (require 'elmo-net)
  36 (require 'sasl)
  37
  38 (eval-when-compile
  39   (require 'elmo-util)
  40   (defun-maybe md5 (a)))
  41
  42 (eval-and-compile
  43   (autoload 'starttls-open-stream "starttls")
  44   (autoload 'starttls-negotiate "starttls"))
  45
  46 (defvar elmo-pop3-use-uidl t
  47   "*If non-nil, use UIDL.")
  48
  49 (defvar elmo-pop3-exists-exactly t)
  50
  51 (eval-and-compile
  52   (luna-define-class elmo-pop3-session (elmo-network-session) ()))
  53
  54 ;; buffer-local
  55 (defvar elmo-pop3-read-point nil)
  56 (defvar elmo-pop3-number-uidl-hash nil) ; number -> uidl
  57 (defvar elmo-pop3-uidl-number-hash nil) ; uidl -> number
  58 (defvar elmo-pop3-size-hash nil) ; number -> size
  59 (defvar elmo-pop3-uidl-done nil)
  60 (defvar elmo-pop3-list-done nil)
  61
  62 (defvar elmo-pop3-local-variables '(elmo-pop3-read-point
  63                                     elmo-pop3-uidl-number-hash
  64                                     elmo-pop3-number-uidl-hash
  65                                     elmo-pop3-uidl-done
  66                                     elmo-pop3-size-hash
  67                                     elmo-pop3-list-done))
  68
  69 (luna-define-method elmo-network-close-session ((session elmo-pop3-session))
  70   (when (elmo-network-session-process-internal session)
  71     (when (memq (process-status
  72                  (elmo-network-session-process-internal session))
  73                 '(open run))
  74       (elmo-pop3-send-command (elmo-network-session-process-internal session)
  75                               "quit")
  76       (or (elmo-pop3-read-response
  77            (elmo-network-session-process-internal session) t)
  78           (error "POP error: QUIT failed")))
  79     (kill-buffer (process-buffer
  80                   (elmo-network-session-process-internal session)))
  81     (delete-process (elmo-network-session-process-internal session))))
  82
  83 (defun elmo-pop3-get-session (spec &optional if-exists)
  84   (elmo-network-get-session
  85    'elmo-pop3-session
  86    "POP3"
  87    (elmo-pop3-spec-hostname spec)
  88    (elmo-pop3-spec-port spec)
  89    (elmo-pop3-spec-username spec)
  90    (elmo-pop3-spec-auth spec)
  91    (elmo-pop3-spec-stream-type spec)
  92    if-exists))
  93
  94 (defun elmo-pop3-send-command (process command &optional no-erase)
  95   (with-current-buffer (process-buffer process)
  96     (unless no-erase
  97       (erase-buffer))
  98     (goto-char (point-min))
  99     (setq elmo-pop3-read-point (point))
 100     (process-send-string process command)
 101     (process-send-string process "\r\n")))
 102
 103 (defun elmo-pop3-read-response (process &optional not-command)
 104   (with-current-buffer (process-buffer process)
 105     (let ((case-fold-search nil)
 106           (response-string nil)
 107           (response-continue t)
 108           (return-value nil)
 109           match-end)
 110       (while response-continue
 111         (goto-char elmo-pop3-read-point)
 112         (while (not (re-search-forward "\r?\n" nil t))
 113           (accept-process-output process)
 114           (goto-char elmo-pop3-read-point))
 115         (setq match-end (point))
 116         (setq response-string
 117               (buffer-substring elmo-pop3-read-point (- match-end 2)))
 118         (goto-char elmo-pop3-read-point)
 119         (if (looking-at "\\+.*$")
 120             (progn
 121               (setq response-continue nil)
 122               (setq elmo-pop3-read-point match-end)
 123               (setq return-value
 124                     (if return-value
 125                         (concat return-value "\n" response-string)
 126                       response-string)))
 127           (if (looking-at "\\-.*$")
 128               (progn
 129                 (setq response-continue nil)
 130                 (setq elmo-pop3-read-point match-end)
 131                 (setq return-value nil))
 132             (setq elmo-pop3-read-point match-end)
 133             (if not-command
 134                 (setq response-continue nil))
 135             (setq return-value
 136                   (if return-value
 137                       (concat return-value "\n" response-string)
 138                     response-string)))
 139           (setq elmo-pop3-read-point match-end)))
 140       return-value)))
 141
 142 (defun elmo-pop3-process-filter (process output)
 143   (save-excursion
 144     (set-buffer (process-buffer process))
 145     (goto-char (point-max))
 146     (insert output)))
 147
 148 (defun elmo-pop3-auth-user (session)
 149   (let ((process (elmo-network-session-process-internal session)))
 150     ;; try USER/PASS
 151     (elmo-pop3-send-command
 152      process
 153      (format "user %s" (elmo-network-session-user-internal session)))
 154     (or (elmo-pop3-read-response process t)
 155         (signal 'elmo-authenticate-error
 156                 '(elmo-pop-auth-user)))
 157     (elmo-pop3-send-command  process
 158                              (format
 159                               "pass %s"
 160                               (elmo-get-passwd
 161                                (elmo-network-session-password-key session))))
 162     (or (elmo-pop3-read-response process t)
 163         (signal 'elmo-authenticate-error
 164                 '(elmo-pop-auth-user)))))
 165
 166 (defun elmo-pop3-auth-apop (session)
 167   (if (string-match "^\+OK .*\\(<[^\>]+>\\)"
 168                     (elmo-network-session-greeting-internal session))
 169       ;; good, APOP ready server
 170       (progn
 171         (require 'md5)
 172         (elmo-pop3-send-command
 173          (elmo-network-session-process-internal session)
 174          (format "apop %s %s"
 175                  (elmo-network-session-user-internal session)
 176                  (md5
 177                   (concat (match-string
 178                            1
 179                            (elmo-network-session-greeting-internal session))
 180                           (elmo-get-passwd
 181                            (elmo-network-session-password-key session))))))
 182         (or (elmo-pop3-read-response
 183              (elmo-network-session-process-internal session)
 184              t)
 185             (signal 'elmo-authenticate-error
 186                     '(elmo-pop3-auth-apop))))
 187     (signal 'elmo-open-error '(elmo-pop-auth-apop))))
 188
 189 (luna-define-method elmo-network-initialize-session-buffer :after
 190   ((session elmo-pop3-session) buffer)
 191   (with-current-buffer buffer
 192     (mapcar 'make-variable-buffer-local elmo-pop3-local-variables)))
 193
 194 (luna-define-method elmo-network-initialize-session ((session
 195                                                       elmo-pop3-session))
 196   (let ((process (elmo-network-session-process-internal session))
 197         response mechanism)
 198     (with-current-buffer (process-buffer process)
 199       (set-process-filter process 'elmo-pop3-process-filter)
 200       (setq elmo-pop3-read-point (point-min))
 201       ;; Skip garbage output from process before greeting.
 202       (while (and (memq (process-status process) '(open run))
 203                   (goto-char (point-max))
 204                   (forward-line -1)
 205                   (not (looking-at "+OK")))
 206         (accept-process-output process 1))
 207       (setq elmo-pop3-read-point (point))
 208       (or (elmo-network-session-set-greeting-internal
 209            session
 210            (elmo-pop3-read-response process t))
 211           (signal 'elmo-open-error
 212                   '(elmo-network-intialize-session)))
 213       (when (eq (elmo-network-stream-type-symbol
 214                  (elmo-network-session-stream-type-internal session))
 215                 'starttls)
 216         (elmo-pop3-send-command process "stls")
 217         (if (string-match "^\+OK"
 218                           (elmo-pop3-read-response process))
 219             (starttls-negotiate process)
 220           (signal 'elmo-open-error
 221                   '(elmo-pop3-starttls-error)))))))
 222
 223 (luna-define-method elmo-network-authenticate-session ((session
 224                                                         elmo-pop3-session))
 225   (with-current-buffer (process-buffer
 226                         (elmo-network-session-process-internal session))
 227     (let* ((process (elmo-network-session-process-internal session))
 228            (auth (elmo-network-session-auth-internal session))
 229            (auth (mapcar '(lambda (mechanism) (upcase (symbol-name mechanism)))
 230                          (if (listp auth) auth (list auth))))
 231            client name step response mechanism
 232            sasl-read-passphrase)
 233       (or (and (string= "USER" (car auth))
 234                (elmo-pop3-auth-user session))
 235           (and (string= "APOP" (car auth))
 236                (elmo-pop3-auth-apop session))
 237           (progn
 238             (setq mechanism (sasl-find-mechanism auth))
 239             (unless mechanism
 240               (signal 'elmo-authenticate-error '(elmo-pop3-auth-no-mechanisms)))
 241             (setq client
 242                   (sasl-make-client
 243                    mechanism
 244                    (elmo-network-session-user-internal session)
 245                    "pop"
 246                    (elmo-network-session-host-internal session)))
 247 ;;;         (if elmo-pop3-auth-user-realm
 248 ;;;             (sasl-client-set-property client 'realm elmo-pop3-auth-user-realm))
 249             (setq name (sasl-mechanism-name mechanism))
 250             (elmo-network-session-set-auth-internal session
 251                                                     (intern (downcase name)))
 252             (setq sasl-read-passphrase
 253                   (function
 254                    (lambda (prompt)
 255                      (elmo-get-passwd
 256                       (elmo-network-session-password-key session)))))
 257             (setq step (sasl-next-step client nil))
 258             (elmo-pop3-send-command
 259              process
 260              (concat "AUTH " name
 261                      (and (sasl-step-data step)
 262                           (concat
 263                            " "
 264                            (elmo-base64-encode-string
 265                             (sasl-step-data step) 'no-line-break))))) ;)
 266             (catch 'done
 267               (while t
 268                 (unless (setq response (elmo-pop3-read-response process t))
 269                   (signal 'elmo-authenticate-error
 270                           (list (intern
 271                                  (concat "elmo-pop3-auth-"
 272                                          (downcase name))))))
 273                 (if (string-match "^\+OK" response)
 274                     (if (sasl-next-step client step)
 275                         (signal 'elmo-authenticate-error
 276                                 (list (intern
 277                                        (concat "elmo-pop3-auth-"
 278                                                (downcase name)))))
 279                       (throw 'done nil)))
 280                 (sasl-step-set-data
 281                  step
 282                  (elmo-base64-decode-string
 283                   (cadr (split-string response " "))))
 284                 (setq step (sasl-next-step client step))
 285                 (elmo-pop3-send-command
 286                  process
 287                  (if (sasl-step-data step)
 288                      (elmo-base64-encode-string (sasl-step-data step)
 289                                                 'no-line-break)
 290                    "")))))))))
 291
 292 (luna-define-method elmo-network-setup-session ((session
 293                                                  elmo-pop3-session))
 294   (let ((process (elmo-network-session-process-internal session))
 295         count response)
 296     (with-current-buffer (process-buffer process)
 297       (setq elmo-pop3-size-hash (elmo-make-hash 31))
 298       ;; To get obarray of uidl and size
 299       (elmo-pop3-send-command process "list")
 300       (if (null (elmo-pop3-read-response process))
 301           (error "POP LIST command failed"))
 302       (if (null (setq response
 303                       (elmo-pop3-read-contents
 304                        (current-buffer) process)))
 305           (error "POP LIST command failed"))
 306       ;; POP server always returns a sequence of serial numbers.
 307       (setq count (elmo-pop3-parse-list-response response))
 308       ;; UIDL
 309       (when elmo-pop3-use-uidl
 310         (setq elmo-pop3-uidl-number-hash (elmo-make-hash (* count 2)))
 311         (setq elmo-pop3-number-uidl-hash (elmo-make-hash (* count 2)))
 312         ;; UIDL
 313         (elmo-pop3-send-command process "uidl")
 314         (unless (elmo-pop3-read-response process)
 315           (error "POP UIDL failed"))
 316         (unless (setq response (elmo-pop3-read-contents
 317                                 (current-buffer) process))
 318           (error "POP UIDL failed"))
 319         (elmo-pop3-parse-uidl-response response)))))
 320
 321 (defun elmo-pop3-read-contents (buffer process)
 322   (save-excursion
 323     (set-buffer buffer)
 324     (let ((case-fold-search nil)
 325           match-end)
 326       (goto-char elmo-pop3-read-point)
 327       (while (not (re-search-forward "^\\.\r\n" nil t))
 328         (accept-process-output process)
 329         (goto-char elmo-pop3-read-point))
 330       (setq match-end (point))
 331       (elmo-delete-cr
 332        (buffer-substring elmo-pop3-read-point
 333                          (- match-end 3))))))
 334
 335 ;; dummy functions
 336 (defun elmo-pop3-list-folders (spec &optional hierarchy) nil)
 337 (defun elmo-pop3-append-msg (spec string) nil nil)
 338 (defun elmo-pop3-folder-creatable-p (spec) nil)
 339 (defun elmo-pop3-create-folder (spec) nil)
 340
 341 (defun elmo-pop3-folder-exists-p (spec)
 342   (if (and elmo-pop3-exists-exactly
 343            (elmo-pop3-plugged-p spec))
 344       (save-excursion
 345         (let (elmo-auto-change-plugged ; don't change plug status.
 346               elmo-pop3-use-uidl       ; No need to use uidl.
 347               session)
 348           (prog1
 349               (setq session (elmo-pop3-get-session spec))
 350             (if session
 351                 (elmo-network-close-session session)))))
 352     t))
 353
 354 (defun elmo-pop3-parse-uidl-response (string)
 355   (let ((buffer (current-buffer))
 356         number list size)
 357     (with-temp-buffer
 358       (let (number uid list)
 359         (insert string)
 360         (goto-char (point-min))
 361         (while (re-search-forward "^\\([0-9]+\\)[\t ]\\([^ \n]+\\)$" nil t)
 362           (setq number  (elmo-match-buffer 1))
 363           (setq uid (elmo-match-buffer 2))
 364           (with-current-buffer buffer
 365             (elmo-set-hash-val uid number elmo-pop3-uidl-number-hash)
 366             (elmo-set-hash-val (concat "#" number) uid
 367                                elmo-pop3-number-uidl-hash))
 368           (setq list (cons uid list)))
 369         (with-current-buffer buffer (setq elmo-pop3-uidl-done t))
 370         (nreverse list)))))
 371
 372 (defun elmo-pop3-parse-list-response (string)
 373   (let ((buffer (current-buffer))
 374         (count 0)
 375         alist)
 376     (with-temp-buffer
 377       (insert string)
 378       (goto-char (point-min))
 379       (while (re-search-forward "^\\([0-9]+\\)[\t ]\\([0-9]+\\)$" nil t)
 380         (setq alist
 381               (cons
 382                (cons (elmo-match-buffer 1)
 383                      (elmo-match-buffer 2))
 384                alist))
 385         (setq count (1+ count)))
 386       (with-current-buffer buffer
 387         (setq elmo-pop3-size-hash (elmo-make-hash (* (length alist) 2)))
 388         (while alist
 389           (elmo-set-hash-val (concat "#" (car (car alist)))
 390                              (cdr (car alist))
 391                              elmo-pop3-size-hash)
 392           (setq alist (cdr alist)))
 393         (setq elmo-pop3-list-done t))
 394       count)))
 395
 396 (defun elmo-pop3-list-location (spec)
 397   (with-current-buffer (process-buffer
 398                         (elmo-network-session-process-internal
 399                          (elmo-pop3-get-session spec)))
 400     (let (list)
 401       (if elmo-pop3-uidl-done
 402           (progn
 403             (mapatoms
 404              (lambda (atom)
 405                (setq list (cons (symbol-name atom) list)))
 406              elmo-pop3-uidl-number-hash)
 407             (nreverse list))
 408         (error "POP3: Error in UIDL")))))
 409
 410 (defun elmo-pop3-list-by-uidl-subr (spec &optional nonsort)
 411   (let ((flist (elmo-list-folder-by-location
 412                 spec
 413                 (elmo-pop3-list-location spec))))
 414     (if nonsort
 415         (cons (elmo-max-of-list flist) (length flist))
 416       (sort flist '<))))
 417
 418 (defun elmo-pop3-list-by-list (spec)
 419   (with-current-buffer (process-buffer
 420                         (elmo-network-session-process-internal
 421                          (elmo-pop3-get-session spec)))
 422     (let (list)
 423       (if elmo-pop3-list-done
 424           (progn
 425             (mapatoms (lambda (atom)
 426                         (setq list (cons (string-to-int
 427                                           (substring (symbol-name atom) 1))
 428                                          list)))
 429                       elmo-pop3-size-hash)
 430             (sort list '<))
 431         (error "POP3: Error in list")))))
 432
 433 (defun elmo-pop3-list-folder (spec)
 434   (let ((killed (and elmo-use-killed-list
 435                      (elmo-msgdb-killed-list-load
 436                       (elmo-msgdb-expand-path spec))))
 437         numbers)
 438     (elmo-pop3-commit spec)
 439     (setq numbers (if elmo-pop3-use-uidl
 440                       (progn
 441                         (elmo-pop3-list-by-uidl-subr spec))
 442                     (elmo-pop3-list-by-list spec)))
 443     (elmo-living-messages numbers killed)))
 444
 445 (defun elmo-pop3-max-of-folder (spec)
 446   (elmo-pop3-commit spec)
 447   (if elmo-pop3-use-uidl
 448       (elmo-pop3-list-by-uidl-subr spec 'nonsort)
 449     (let* ((process
 450             (elmo-network-session-process-internal
 451              (elmo-pop3-get-session spec)))
 452            (total 0)
 453            response)
 454       (with-current-buffer (process-buffer process)
 455         (elmo-pop3-send-command process "STAT")
 456         (setq response (elmo-pop3-read-response process))
 457         ;; response: "^\+OK 2 7570$"
 458         (if (not (string-match "^\+OK[ \t]*\\([0-9]*\\)" response))
 459             (error "POP STAT command failed")
 460           (setq total
 461                 (string-to-int
 462                  (substring response (match-beginning 1)(match-end 1 ))))
 463           (cons total total))))))
 464
 465 (defvar elmo-pop3-header-fetch-chop-length 200)
 466
 467 (defsubst elmo-pop3-next-result-arrived-p ()
 468   (cond
 469    ((eq (following-char) ?+)
 470     (if (re-search-forward "\n\\.\r?\n" nil t)
 471         t
 472       nil))
 473    ((looking-at "-")
 474     (if (search-forward "\n" nil t)
 475         t
 476       nil))
 477    (t
 478     nil)))
 479
 480 (defun elmo-pop3-retrieve-headers (buffer tobuffer process articles)
 481   (save-excursion
 482     (set-buffer buffer)
 483     (erase-buffer)
 484     (let ((number (length articles))
 485           (count 0)
 486           (received 0)
 487           (last-point (point-min)))
 488       ;; Send HEAD commands.
 489       (while articles
 490         (elmo-pop3-send-command process (format
 491                                          "top %s 0" (car articles))
 492                                 'no-erase)
 493 ;;;     (accept-process-output process 1)
 494         (setq articles (cdr articles))
 495         (setq count (1+ count))
 496         ;; Every 200 requests we have to read the stream in
 497         ;; order to avoid deadlocks.
 498         (when (or elmo-pop3-send-command-synchronously
 499                   (null articles)       ;All requests have been sent.
 500                   (zerop (% count elmo-pop3-header-fetch-chop-length)))
 501           (unless elmo-pop3-send-command-synchronously
 502             (accept-process-output process 1))
 503           (discard-input)
 504           (while (progn
 505                    (set-buffer buffer)
 506                    (goto-char last-point)
 507                    ;; Count replies.
 508                    (while (elmo-pop3-next-result-arrived-p)
 509                      (setq last-point (point))
 510                      (setq received (1+ received)))
 511                    (< received count))
 512             (when (> number elmo-display-progress-threshold)
 513               (if (or (zerop (% received 5)) (= received number))
 514                   (elmo-display-progress
 515                    'elmo-pop3-retrieve-headers "Getting headers..."
 516                    (/ (* received 100) number))))
 517             (accept-process-output process 1)
 518 ;;;         (accept-process-output process)
 519             (discard-input))))
 520       ;; Remove all "\r"'s.
 521       (goto-char (point-min))
 522       (while (search-forward "\r\n" nil t)
 523         (replace-match "\n"))
 524       (copy-to-buffer tobuffer (point-min) (point-max)))))
 525
 526 (defalias 'elmo-pop3-msgdb-create 'elmo-pop3-msgdb-create-as-numlist)
 527
 528 (defun elmo-pop3-msgdb-create-as-numlist (spec numlist new-mark
 529                                                already-mark seen-mark
 530                                                important-mark seen-list
 531                                                &optional msgdb)
 532   (when numlist
 533     (let ((process (elmo-network-session-process-internal
 534                     (elmo-pop3-get-session spec)))
 535           loc-alist)
 536       (if elmo-pop3-use-uidl
 537           (setq loc-alist (if msgdb (elmo-msgdb-get-location msgdb)
 538                             (elmo-msgdb-location-load
 539                              (elmo-msgdb-expand-path spec)))))
 540       (elmo-pop3-msgdb-create-by-header process numlist
 541                                         new-mark already-mark
 542                                         seen-mark seen-list
 543                                         loc-alist))))
 544
 545 (defun elmo-pop3-uidl-to-number (uidl)
 546   (string-to-number (elmo-get-hash-val uidl
 547                                        elmo-pop3-uidl-number-hash)))
 548
 549 (defun elmo-pop3-number-to-uidl (number)
 550   (elmo-get-hash-val (format "#%d" number)
 551                      elmo-pop3-number-uidl-hash))
 552
 553 (defun elmo-pop3-number-to-size (number)
 554   (elmo-get-hash-val (format "#%d" number)
 555                      elmo-pop3-size-hash))
 556
 557 (defun elmo-pop3-msgdb-create-by-header (process numlist
 558                                                  new-mark already-mark
 559                                                  seen-mark
 560                                                  seen-list
 561                                                  loc-alist)
 562   (let ((tmp-buffer (get-buffer-create " *ELMO Overview TMP*")))
 563     (with-current-buffer (process-buffer process)
 564       (if loc-alist ; use uidl.
 565           (setq numlist
 566                 (delq
 567                  nil
 568                  (mapcar
 569                   (lambda (number)
 570                     (elmo-pop3-uidl-to-number (cdr (assq number loc-alist))))
 571                   numlist))))
 572       (elmo-pop3-retrieve-headers (process-buffer process)
 573                                   tmp-buffer process numlist)
 574       (prog1
 575           (elmo-pop3-msgdb-create-message
 576            tmp-buffer
 577            process
 578            (length numlist)
 579            numlist
 580            new-mark already-mark seen-mark seen-list loc-alist)
 581         (kill-buffer tmp-buffer)))))
 582
 583 (defun elmo-pop3-msgdb-create-message (buffer
 584                                        process
 585                                        num
 586                                        numlist new-mark already-mark
 587                                        seen-mark
 588                                        seen-list
 589                                        loc-alist)
 590   (save-excursion
 591     (let (beg overview number-alist mark-alist
 592               entity i number message-id gmark seen size)
 593       (set-buffer buffer)
 594       (elmo-set-buffer-multibyte default-enable-multibyte-characters)
 595       (goto-char (point-min))
 596       (setq i 0)
 597       (message "Creating msgdb...")
 598       (while (not (eobp))
 599         (setq beg (save-excursion (forward-line 1) (point)))
 600         (elmo-pop3-next-result-arrived-p)
 601         (save-excursion
 602           (forward-line -1)
 603           (save-restriction
 604             (narrow-to-region beg (point))
 605             (setq entity
 606                   (elmo-msgdb-create-overview-from-buffer
 607                    (car numlist)))
 608             (setq numlist (cdr numlist))
 609             (when entity
 610               (setq overview
 611                     (elmo-msgdb-append-element
 612                      overview entity))
 613               (with-current-buffer (process-buffer process)
 614                 (elmo-msgdb-overview-entity-set-size
 615                  entity
 616                  (string-to-number
 617                   (elmo-pop3-number-to-size
 618                    (elmo-msgdb-overview-entity-get-number entity))))
 619                 (if (setq number
 620                           (car
 621                            (rassoc
 622                             (elmo-pop3-number-to-uidl
 623                              (elmo-msgdb-overview-entity-get-number entity))
 624                             loc-alist)))
 625                     (elmo-msgdb-overview-entity-set-number entity number)))
 626               (setq number-alist
 627                     (elmo-msgdb-number-add
 628                      number-alist
 629                      (elmo-msgdb-overview-entity-get-number entity)
 630                      (car entity)))
 631               (setq message-id (car entity))
 632               (setq seen (member message-id seen-list))
 633               (if (setq gmark (or (elmo-msgdb-global-mark-get message-id)
 634                                   (if (elmo-cache-exists-p
 635                                        message-id) ; XXX
 636                                       (if seen
 637                                           nil
 638                                         already-mark)
 639                                     (if seen
 640                                         (if elmo-pop3-use-cache
 641                                             seen-mark)
 642                                       new-mark))))
 643                   (setq mark-alist
 644                         (elmo-msgdb-mark-append
 645                          mark-alist
 646                          (elmo-msgdb-overview-entity-get-number entity)
 647                          gmark))))))
 648         (when (> num elmo-display-progress-threshold)
 649           (setq i (1+ i))
 650           (if (or (zerop (% i 5)) (= i num))
 651               (elmo-display-progress
 652                'elmo-pop3-msgdb-create-message "Creating msgdb..."
 653                (/ (* i 100) num)))))
 654       (list overview number-alist mark-alist loc-alist))))
 655
 656 (defun elmo-pop3-read-body (process outbuf)
 657   (with-current-buffer (process-buffer process)
 658     (let ((start elmo-pop3-read-point)
 659           end)
 660       (goto-char start)
 661       (while (not (re-search-forward "^\\.\r?\n" nil t))
 662         (accept-process-output process)
 663         (goto-char start))
 664       (setq end (point))
 665       (with-current-buffer outbuf
 666         (erase-buffer)
 667         (insert-buffer-substring (process-buffer process) start (- end 3))
 668         (elmo-delete-cr-get-content-type)))))
 669
 670 (defun elmo-pop3-read-msg (spec number outbuf &optional msgdb)
 671   (let* ((loc-alist (if elmo-pop3-use-uidl
 672                         (if msgdb
 673                             (elmo-msgdb-get-location msgdb)
 674                           (elmo-msgdb-location-load
 675                            (elmo-msgdb-expand-path spec)))))
 676          (process (elmo-network-session-process-internal
 677                    (elmo-pop3-get-session spec)))
 678          response errmsg msg)
 679     (with-current-buffer (process-buffer process)
 680       (if loc-alist
 681           (setq number (elmo-pop3-uidl-to-number
 682                         (cdr (assq number loc-alist)))))
 683       (when number
 684         (elmo-pop3-send-command process
 685                                 (format "retr %s" number))
 686         (when (null (setq response (elmo-pop3-read-response
 687                                     process t)))
 688           (error "Fetching message failed"))
 689         (setq response (elmo-pop3-read-body process outbuf))
 690         (set-buffer outbuf)
 691         (goto-char (point-min))
 692         (while (re-search-forward "^\\." nil t)
 693           (replace-match "")
 694           (forward-line))
 695         response))))
 696
 697 (defun elmo-pop3-delete-msg (process number loc-alist)
 698   (with-current-buffer (process-buffer process)
 699     (let (response errmsg msg)
 700       (if loc-alist
 701           (setq number (elmo-pop3-uidl-to-number
 702                         (cdr (assq number loc-alist)))))
 703       (if number
 704           (progn
 705             (elmo-pop3-send-command process
 706                                     (format "dele %s" number))
 707             (when (null (setq response (elmo-pop3-read-response
 708                                         process t)))
 709               (error "Deleting message failed")))
 710         (error "Deleting message failed")))))
 711
 712 (defun elmo-pop3-delete-msgs (spec msgs &optional msgdb)
 713   (let ((loc-alist (if elmo-pop3-use-uidl
 714                        (if msgdb
 715                            (elmo-msgdb-get-location msgdb)
 716                          (elmo-msgdb-location-load
 717                           (elmo-msgdb-expand-path spec)))))
 718         (process (elmo-network-session-process-internal
 719                   (elmo-pop3-get-session spec))))
 720     (mapcar '(lambda (msg) (elmo-pop3-delete-msg
 721                             process msg loc-alist))
 722             msgs)))
 723
 724 (defun elmo-pop3-search (spec condition &optional numlist)
 725   (error "Searching in pop3 folder is not implemented yet"))
 726
 727 (defun elmo-pop3-use-cache-p (spec number)
 728   elmo-pop3-use-cache)
 729
 730 (defun elmo-pop3-local-file-p (spec number)
 731   nil)
 732
 733 (defun elmo-pop3-port-label (spec)
 734   (concat "pop3"
 735           (if (elmo-pop3-spec-stream-type spec)
 736               (concat "!" (symbol-name
 737                            (elmo-network-stream-type-symbol
 738                             (elmo-pop3-spec-stream-type spec)))))))
 739
 740 (defsubst elmo-pop3-portinfo (spec)
 741   (list (elmo-pop3-spec-hostname spec)
 742         (elmo-pop3-spec-port spec)))
 743
 744 (defun elmo-pop3-plugged-p (spec)
 745   (apply 'elmo-plugged-p
 746          (append (elmo-pop3-portinfo spec)
 747                  (list nil (quote (elmo-pop3-port-label spec))))))
 748
 749 (defun elmo-pop3-set-plugged (spec plugged add)
 750   (apply 'elmo-set-plugged plugged
 751          (append (elmo-pop3-portinfo spec)
 752                  (list nil nil (quote (elmo-pop3-port-label spec)) add))))
 753
 754 (defalias 'elmo-pop3-sync-number-alist
 755   'elmo-generic-sync-number-alist)
 756 (defalias 'elmo-pop3-list-folder-unread
 757   'elmo-generic-list-folder-unread)
 758 (defalias 'elmo-pop3-list-folder-important
 759   'elmo-generic-list-folder-important)
 760 (defalias 'elmo-pop3-folder-diff 'elmo-generic-folder-diff)
 761
 762 (defun elmo-pop3-commit (spec)
 763   (if (elmo-pop3-plugged-p spec)
 764       (let ((session (elmo-pop3-get-session spec 'if-exists)))
 765         (and session
 766              (elmo-network-close-session session)))))
 767
 768
 769 (require 'product)
 770 (product-provide (provide 'elmo-pop3) (require 'elmo-version))
 771
 772 ;;; elmo-pop3.el ends here