1;;; gnus-int.el --- backend interface functions for Gnus 2 3;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 4;; 2005, 2006, 2007 Free Software Foundation, Inc. 5 6;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> 7;; Keywords: news 8 9;; This file is part of GNU Emacs. 10 11;; GNU Emacs is free software; you can redistribute it and/or modify 12;; it under the terms of the GNU General Public License as published by 13;; the Free Software Foundation; either version 2, or (at your option) 14;; any later version. 15 16;; GNU Emacs is distributed in the hope that it will be useful, 17;; but WITHOUT ANY WARRANTY; without even the implied warranty of 18;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19;; GNU General Public License for more details. 20 21;; You should have received a copy of the GNU General Public License 22;; along with GNU Emacs; see the file COPYING. If not, write to the 23;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 24;; Boston, MA 02110-1301, USA. 25 26;;; Commentary: 27 28;;; Code: 29 30(eval-when-compile (require 'cl)) 31 32(require 'gnus) 33(require 'message) 34(require 'gnus-range) 35 36(autoload 'gnus-agent-expire "gnus-agent") 37(autoload 'gnus-agent-regenerate-group "gnus-agent") 38(autoload 'gnus-agent-read-servers-validate-native "gnus-agent") 39 40(defcustom gnus-open-server-hook nil 41 "Hook called just before opening connection to the news server." 42 :group 'gnus-start 43 :type 'hook) 44 45(defcustom gnus-server-unopen-status nil 46 "The default status if the server is not able to open. 47If the server is covered by Gnus agent, the possible values are 48`denied', set the server denied; `offline', set the server offline; 49nil, ask user. If the server is not covered by Gnus agent, set the 50server denied." 51 :version "22.1" 52 :group 'gnus-start 53 :type '(choice (const :tag "Ask" nil) 54 (const :tag "Deny server" denied) 55 (const :tag "Unplug Agent" offline))) 56 57(defvar gnus-internal-registry-spool-current-method nil 58 "The current method, for the registry.") 59 60;;; 61;;; Server Communication 62;;; 63 64(defun gnus-start-news-server (&optional confirm) 65 "Open a method for getting news. 66If CONFIRM is non-nil, the user will be asked for an NNTP server." 67 (let (how) 68 (if gnus-current-select-method 69 ;; Stream is already opened. 70 nil 71 ;; Open NNTP server. 72 (unless gnus-nntp-service 73 (setq gnus-nntp-server nil)) 74 (when confirm 75 ;; Read server name with completion. 76 (setq gnus-nntp-server 77 (completing-read "NNTP server: " 78 (mapcar (lambda (server) (list server)) 79 (cons (list gnus-nntp-server) 80 gnus-secondary-servers)) 81 nil nil gnus-nntp-server))) 82 83 (when (and gnus-nntp-server 84 (stringp gnus-nntp-server) 85 (not (string= gnus-nntp-server ""))) 86 (setq gnus-select-method 87 (cond ((or (string= gnus-nntp-server "") 88 (string= gnus-nntp-server "::")) 89 (list 'nnspool (system-name))) 90 ((string-match "^:" gnus-nntp-server) 91 (list 'nnmh gnus-nntp-server 92 (list 'nnmh-directory 93 (file-name-as-directory 94 (expand-file-name 95 (substring gnus-nntp-server 1) "~/"))) 96 (list 'nnmh-get-new-mail nil))) 97 (t 98 (list 'nntp gnus-nntp-server))))) 99 100 (setq how (car gnus-select-method)) 101 (cond 102 ((eq how 'nnspool) 103 (require 'nnspool) 104 (gnus-message 5 "Looking up local news spool...")) 105 ((eq how 'nnmh) 106 (require 'nnmh) 107 (gnus-message 5 "Looking up mh spool...")) 108 (t 109 (require 'nntp))) 110 (setq gnus-current-select-method gnus-select-method) 111 (gnus-run-hooks 'gnus-open-server-hook) 112 113 ;; Partially validate agent covered methods now that the 114 ;; gnus-select-method is known. 115 116 (if gnus-agent 117 ;; NOTE: This is here for one purpose only. By validating 118 ;; the current select method, it converts the old 5.10.3, 119 ;; and earlier, format to the current format. That enables 120 ;; the agent code within gnus-open-server to function 121 ;; correctly. 122 (gnus-agent-read-servers-validate-native gnus-select-method)) 123 124 (or 125 ;; gnus-open-server-hook might have opened it 126 (gnus-server-opened gnus-select-method) 127 (gnus-open-server gnus-select-method) 128 gnus-batch-mode 129 (gnus-y-or-n-p 130 (format 131 "%s (%s) open error: '%s'. Continue? " 132 (car gnus-select-method) (cadr gnus-select-method) 133 (gnus-status-message gnus-select-method))) 134 (gnus-error 1 "Couldn't open server on %s" 135 (nth 1 gnus-select-method)))))) 136 137(defun gnus-check-group (group) 138 "Try to make sure that the server where GROUP exists is alive." 139 (let ((method (gnus-find-method-for-group group))) 140 (or (gnus-server-opened method) 141 (gnus-open-server method)))) 142 143(defun gnus-check-server (&optional method silent) 144 "Check whether the connection to METHOD is down. 145If METHOD is nil, use `gnus-select-method'. 146If it is down, start it up (again)." 147 (let ((method (or method gnus-select-method)) 148 result) 149 ;; Transform virtual server names into select methods. 150 (when (stringp method) 151 (setq method (gnus-server-to-method method))) 152 (if (gnus-server-opened method) 153 ;; The stream is already opened. 154 t 155 ;; Open the server. 156 (unless silent 157 (gnus-message 5 "Opening %s server%s..." (car method) 158 (if (equal (nth 1 method) "") "" 159 (format " on %s" (nth 1 method))))) 160 (gnus-run-hooks 'gnus-open-server-hook) 161 (prog1 162 (condition-case () 163 (setq result (gnus-open-server method)) 164 (quit (message "Quit gnus-check-server") 165 nil)) 166 (unless silent 167 (gnus-message 5 "Opening %s server%s...%s" (car method) 168 (if (equal (nth 1 method) "") "" 169 (format " on %s" (nth 1 method))) 170 (if result "done" "failed"))))))) 171 172(defun gnus-get-function (method function &optional noerror) 173 "Return a function symbol based on METHOD and FUNCTION." 174 ;; Translate server names into methods. 175 (unless method 176 (error "Attempted use of a nil select method")) 177 (when (stringp method) 178 (setq method (gnus-server-to-method method))) 179 ;; Check cache of constructed names. 180 (let* ((method-sym (if gnus-agent 181 (inline (gnus-agent-get-function method)) 182 (car method))) 183 (method-fns (get method-sym 'gnus-method-functions)) 184 (func (let ((method-fnlist-elt (assq function method-fns))) 185 (unless method-fnlist-elt 186 (setq method-fnlist-elt 187 (cons function 188 (intern (format "%s-%s" method-sym function)))) 189 (put method-sym 'gnus-method-functions 190 (cons method-fnlist-elt method-fns))) 191 (cdr method-fnlist-elt)))) 192 ;; Maybe complain if there is no function. 193 (unless (fboundp func) 194 (unless (car method) 195 (error "Trying to require a method that doesn't exist")) 196 (require (car method)) 197 (when (not (fboundp func)) 198 (if noerror 199 (setq func nil) 200 (error "No such function: %s" func)))) 201 func)) 202 203 204;;; 205;;; Interface functions to the backends. 206;;; 207 208(defun gnus-open-server (gnus-command-method) 209 "Open a connection to GNUS-COMMAND-METHOD." 210 (when (stringp gnus-command-method) 211 (setq gnus-command-method (gnus-server-to-method gnus-command-method))) 212 (let ((elem (assoc gnus-command-method gnus-opened-servers))) 213 ;; If this method was previously denied, we just return nil. 214 (if (eq (nth 1 elem) 'denied) 215 (progn 216 (gnus-message 1 "Denied server") 217 nil) 218 ;; Open the server. 219 (let* ((open-server-function (gnus-get-function gnus-command-method 'open-server)) 220 (result 221 (condition-case err 222 (funcall open-server-function 223 (nth 1 gnus-command-method) 224 (nthcdr 2 gnus-command-method)) 225 (error 226 (gnus-message 1 (format 227 "Unable to open server due to: %s" 228 (error-message-string err))) 229 nil) 230 (quit 231 (gnus-message 1 "Quit trying to open server") 232 nil))) 233 open-offline) 234 ;; If this hasn't been opened before, we add it to the list. 235 (unless elem 236 (setq elem (list gnus-command-method nil) 237 gnus-opened-servers (cons elem gnus-opened-servers))) 238 ;; Set the status of this server. 239 (setcar (cdr elem) 240 (cond (result 241 (if (eq open-server-function #'nnagent-open-server) 242 ;; The agent's backend has a "special" status 243 'offline 244 'ok)) 245 ((and gnus-agent 246 (gnus-agent-method-p gnus-command-method)) 247 (cond (gnus-server-unopen-status 248 ;; Set the server's status to the unopen 249 ;; status. If that status is offline, 250 ;; recurse to open the agent's backend. 251 (setq open-offline (eq gnus-server-unopen-status 'offline)) 252 gnus-server-unopen-status) 253 ((and 254 (not gnus-batch-mode) 255 (gnus-y-or-n-p 256 (format "Unable to open %s:%s, go offline? " 257 (car gnus-command-method) 258 (cadr gnus-command-method)))) 259 (setq open-offline t) 260 'offline) 261 (t 262 ;; This agentized server was still denied 263 'denied))) 264 (t 265 ;; This unagentized server must be denied 266 'denied))) 267 268 ;; NOTE: I MUST set the server's status to offline before this 269 ;; recursive call as this status will drive the 270 ;; gnus-get-function (called above) to return the agent's 271 ;; backend. 272 (if open-offline 273 ;; Recursively open this offline server to perform the 274 ;; open-server function of the agent's backend. 275 (let ((gnus-server-unopen-status 'denied)) 276 ;; Bind gnus-server-unopen-status to avoid recursively 277 ;; prompting with "go offline?". This is only a concern 278 ;; when the agent's backend fails to open the server. 279 (gnus-open-server gnus-command-method)) 280 result))))) 281 282(defun gnus-close-server (gnus-command-method) 283 "Close the connection to GNUS-COMMAND-METHOD." 284 (when (stringp gnus-command-method) 285 (setq gnus-command-method (gnus-server-to-method gnus-command-method))) 286 (funcall (gnus-get-function gnus-command-method 'close-server) 287 (nth 1 gnus-command-method))) 288 289(defun gnus-request-list (gnus-command-method) 290 "Request the active file from GNUS-COMMAND-METHOD." 291 (when (stringp gnus-command-method) 292 (setq gnus-command-method (gnus-server-to-method gnus-command-method))) 293 (funcall (gnus-get-function gnus-command-method 'request-list) 294 (nth 1 gnus-command-method))) 295 296(defun gnus-request-list-newsgroups (gnus-command-method) 297 "Request the newsgroups file from GNUS-COMMAND-METHOD." 298 (when (stringp gnus-command-method) 299 (setq gnus-command-method (gnus-server-to-method gnus-command-method))) 300 (funcall (gnus-get-function gnus-command-method 'request-list-newsgroups) 301 (nth 1 gnus-command-method))) 302 303(defun gnus-request-newgroups (date gnus-command-method) 304 "Request all new groups since DATE from GNUS-COMMAND-METHOD." 305 (when (stringp gnus-command-method) 306 (setq gnus-command-method (gnus-server-to-method gnus-command-method))) 307 (let ((func (gnus-get-function gnus-command-method 'request-newgroups t))) 308 (when func 309 (funcall func date (nth 1 gnus-command-method))))) 310 311(defun gnus-server-opened (gnus-command-method) 312 "Check whether a connection to GNUS-COMMAND-METHOD has been opened." 313 (unless (eq (gnus-server-status gnus-command-method) 314 'denied) 315 (when (stringp gnus-command-method) 316 (setq gnus-command-method (gnus-server-to-method gnus-command-method))) 317 (funcall (inline (gnus-get-function gnus-command-method 'server-opened)) 318 (nth 1 gnus-command-method)))) 319 320(defun gnus-status-message (gnus-command-method) 321 "Return the status message from GNUS-COMMAND-METHOD. 322If GNUS-COMMAND-METHOD is a string, it is interpreted as a group 323name. The method this group uses will be queried." 324 (let ((gnus-command-method 325 (if (stringp gnus-command-method) 326 (gnus-find-method-for-group gnus-command-method) 327 gnus-command-method))) 328 (funcall (gnus-get-function gnus-command-method 'status-message) 329 (nth 1 gnus-command-method)))) 330 331(defun gnus-request-regenerate (gnus-command-method) 332 "Request a data generation from GNUS-COMMAND-METHOD." 333 (when (stringp gnus-command-method) 334 (setq gnus-command-method (gnus-server-to-method gnus-command-method))) 335 (funcall (gnus-get-function gnus-command-method 'request-regenerate) 336 (nth 1 gnus-command-method))) 337 338(defun gnus-request-group (group &optional dont-check gnus-command-method) 339 "Request GROUP. If DONT-CHECK, no information is required." 340 (let ((gnus-command-method 341 (or gnus-command-method (inline (gnus-find-method-for-group group))))) 342 (when (stringp gnus-command-method) 343 (setq gnus-command-method 344 (inline (gnus-server-to-method gnus-command-method)))) 345 (funcall (inline (gnus-get-function gnus-command-method 'request-group)) 346 (gnus-group-real-name group) (nth 1 gnus-command-method) 347 dont-check))) 348 349(defun gnus-list-active-group (group) 350 "Request active information on GROUP." 351 (let ((gnus-command-method (gnus-find-method-for-group group)) 352 (func 'list-active-group)) 353 (when (gnus-check-backend-function func group) 354 (funcall (gnus-get-function gnus-command-method func) 355 (gnus-group-real-name group) (nth 1 gnus-command-method))))) 356 357(defun gnus-request-group-description (group) 358 "Request a description of GROUP." 359 (let ((gnus-command-method (gnus-find-method-for-group group)) 360 (func 'request-group-description)) 361 (when (gnus-check-backend-function func group) 362 (funcall (gnus-get-function gnus-command-method func) 363 (gnus-group-real-name group) (nth 1 gnus-command-method))))) 364 365(defun gnus-request-group-articles (group) 366 "Request a list of existing articles in GROUP." 367 (let ((gnus-command-method (gnus-find-method-for-group group)) 368 (func 'request-group-articles)) 369 (when (gnus-check-backend-function func group) 370 (funcall (gnus-get-function gnus-command-method func) 371 (gnus-group-real-name group) (nth 1 gnus-command-method))))) 372 373(defun gnus-close-group (group) 374 "Request the GROUP be closed." 375 (let ((gnus-command-method (inline (gnus-find-method-for-group group)))) 376 (funcall (gnus-get-function gnus-command-method 'close-group) 377 (gnus-group-real-name group) (nth 1 gnus-command-method)))) 378 379(defun gnus-retrieve-headers (articles group &optional fetch-old) 380 "Request headers for ARTICLES in GROUP. 381If FETCH-OLD, retrieve all headers (or some subset thereof) in the group." 382 (let ((gnus-command-method (gnus-find-method-for-group group))) 383 (cond 384 ((and gnus-use-cache (numberp (car articles))) 385 (gnus-cache-retrieve-headers articles group fetch-old)) 386 ((and gnus-agent (gnus-online gnus-command-method) 387 (gnus-agent-method-p gnus-command-method)) 388 (gnus-agent-retrieve-headers articles group fetch-old)) 389 (t 390 (funcall (gnus-get-function gnus-command-method 'retrieve-headers) 391 articles (gnus-group-real-name group) 392 (nth 1 gnus-command-method) fetch-old))))) 393 394(defun gnus-retrieve-articles (articles group) 395 "Request ARTICLES in GROUP." 396 (let ((gnus-command-method (gnus-find-method-for-group group))) 397 (funcall (gnus-get-function gnus-command-method 'retrieve-articles) 398 articles (gnus-group-real-name group) 399 (nth 1 gnus-command-method)))) 400 401(defun gnus-retrieve-groups (groups gnus-command-method) 402 "Request active information on GROUPS from GNUS-COMMAND-METHOD." 403 (when (stringp gnus-command-method) 404 (setq gnus-command-method (gnus-server-to-method gnus-command-method))) 405 (funcall (gnus-get-function gnus-command-method 'retrieve-groups) 406 groups (nth 1 gnus-command-method))) 407 408(defun gnus-request-type (group &optional article) 409 "Return the type (`post' or `mail') of GROUP (and ARTICLE)." 410 (let ((gnus-command-method (gnus-find-method-for-group group))) 411 (if (not (gnus-check-backend-function 412 'request-type (car gnus-command-method))) 413 'unknown 414 (funcall (gnus-get-function gnus-command-method 'request-type) 415 (gnus-group-real-name group) article)))) 416 417(defun gnus-request-set-mark (group action) 418 "Set marks on articles in the back end." 419 (let ((gnus-command-method (gnus-find-method-for-group group))) 420 (if (not (gnus-check-backend-function 421 'request-set-mark (car gnus-command-method))) 422 action 423 (funcall (gnus-get-function gnus-command-method 'request-set-mark) 424 (gnus-group-real-name group) action 425 (nth 1 gnus-command-method))))) 426 427(defun gnus-request-update-mark (group article mark) 428 "Allow the back end to change the mark the user tries to put on an article." 429 (let ((gnus-command-method (gnus-find-method-for-group group))) 430 (if (not (gnus-check-backend-function 431 'request-update-mark (car gnus-command-method))) 432 mark 433 (funcall (gnus-get-function gnus-command-method 'request-update-mark) 434 (gnus-group-real-name group) article mark)))) 435 436(defun gnus-request-article (article group &optional buffer) 437 "Request the ARTICLE in GROUP. 438ARTICLE can either be an article number or an article Message-ID. 439If BUFFER, insert the article in that group." 440 (let ((gnus-command-method (gnus-find-method-for-group group))) 441 (funcall (gnus-get-function gnus-command-method 'request-article) 442 article (gnus-group-real-name group) 443 (nth 1 gnus-command-method) buffer))) 444 445(defun gnus-request-head (article group) 446 "Request the head of ARTICLE in GROUP." 447 (let* ((gnus-command-method (gnus-find-method-for-group group)) 448 (head (gnus-get-function gnus-command-method 'request-head t)) 449 res clean-up) 450 (cond 451 ;; Check the cache. 452 ((and gnus-use-cache 453 (numberp article) 454 (gnus-cache-request-article article group)) 455 (setq res (cons group article) 456 clean-up t)) 457 ;; Check the agent cache. 458 ((gnus-agent-request-article article group) 459 (setq res (cons group article) 460 clean-up t)) 461 ;; Use `head' function. 462 ((fboundp head) 463 (setq res (funcall head article (gnus-group-real-name group) 464 (nth 1 gnus-command-method)))) 465 ;; Use `article' function. 466 (t 467 (setq res (gnus-request-article article group) 468 clean-up t))) 469 (when clean-up 470 (save-excursion 471 (set-buffer nntp-server-buffer) 472 (goto-char (point-min)) 473 (when (search-forward "\n\n" nil t) 474 (delete-region (1- (point)) (point-max))) 475 (nnheader-fold-continuation-lines))) 476 res)) 477 478(defun gnus-request-body (article group) 479 "Request the body of ARTICLE in GROUP." 480 (let* ((gnus-command-method (gnus-find-method-for-group group)) 481 (head (gnus-get-function gnus-command-method 'request-body t)) 482 res clean-up) 483 (cond 484 ;; Check the cache. 485 ((and gnus-use-cache 486 (numberp article) 487 (gnus-cache-request-article article group)) 488 (setq res (cons group article) 489 clean-up t)) 490 ;; Check the agent cache. 491 ((gnus-agent-request-article article group) 492 (setq res (cons group article) 493 clean-up t)) 494 ;; Use `head' function. 495 ((fboundp head) 496 (setq res (funcall head article (gnus-group-real-name group) 497 (nth 1 gnus-command-method)))) 498 ;; Use `article' function. 499 (t 500 (setq res (gnus-request-article article group) 501 clean-up t))) 502 (when clean-up 503 (save-excursion 504 (set-buffer nntp-server-buffer) 505 (goto-char (point-min)) 506 (when (search-forward "\n\n" nil t) 507 (delete-region (point-min) (1- (point)))))) 508 res)) 509 510(defun gnus-request-post (gnus-command-method) 511 "Post the current buffer using GNUS-COMMAND-METHOD." 512 (when (stringp gnus-command-method) 513 (setq gnus-command-method (gnus-server-to-method gnus-command-method))) 514 (funcall (gnus-get-function gnus-command-method 'request-post) 515 (nth 1 gnus-command-method))) 516 517(defun gnus-request-scan (group gnus-command-method) 518 "Request a SCAN being performed in GROUP from GNUS-COMMAND-METHOD. 519If GROUP is nil, all groups on GNUS-COMMAND-METHOD are scanned." 520 (let ((gnus-command-method 521 (if group (gnus-find-method-for-group group) gnus-command-method)) 522 (gnus-inhibit-demon t) 523 (mail-source-plugged gnus-plugged)) 524 (if (or gnus-plugged (not (gnus-agent-method-p gnus-command-method))) 525 (progn 526 (setq gnus-internal-registry-spool-current-method gnus-command-method) 527 (funcall (gnus-get-function gnus-command-method 'request-scan) 528 (and group (gnus-group-real-name group)) 529 (nth 1 gnus-command-method)))))) 530 531(defsubst gnus-request-update-info (info gnus-command-method) 532 "Request that GNUS-COMMAND-METHOD update INFO." 533 (when (stringp gnus-command-method) 534 (setq gnus-command-method (gnus-server-to-method gnus-command-method))) 535 (when (gnus-check-backend-function 536 'request-update-info (car gnus-command-method)) 537 (let ((group (gnus-info-group info))) 538 (and (funcall (gnus-get-function gnus-command-method 539 'request-update-info) 540 (gnus-group-real-name group) 541 info (nth 1 gnus-command-method)) 542 ;; If the minimum article number is greater than 1, then all 543 ;; smaller article numbers are known not to exist; we'll 544 ;; artificially add those to the 'read range. 545 (let* ((active (gnus-active group)) 546 (min (car active))) 547 (when (> min 1) 548 (let* ((range (if (= min 2) 1 (cons 1 (1- min)))) 549 (read (gnus-info-read info)) 550 (new-read (gnus-range-add read (list range)))) 551 (gnus-info-set-read info new-read))) 552 info))))) 553 554(defun gnus-request-expire-articles (articles group &optional force) 555 (let* ((gnus-command-method (gnus-find-method-for-group group)) 556 (not-deleted 557 (funcall 558 (gnus-get-function gnus-command-method 'request-expire-articles) 559 articles (gnus-group-real-name group) (nth 1 gnus-command-method) 560 force))) 561 (when (and gnus-agent 562 (gnus-agent-method-p gnus-command-method)) 563 (let ((expired-articles (gnus-sorted-difference articles not-deleted))) 564 (when expired-articles 565 (gnus-agent-expire expired-articles group 'force)))) 566 not-deleted)) 567 568(defun gnus-request-move-article (article group server accept-function 569 &optional last) 570 (let* ((gnus-command-method (gnus-find-method-for-group group)) 571 (result (funcall (gnus-get-function gnus-command-method 572 'request-move-article) 573 article (gnus-group-real-name group) 574 (nth 1 gnus-command-method) accept-function last))) 575 (when (and result gnus-agent 576 (gnus-agent-method-p gnus-command-method)) 577 (gnus-agent-unfetch-articles group (list article))) 578 result)) 579 580(defun gnus-request-accept-article (group &optional gnus-command-method last 581 no-encode) 582 ;; Make sure there's a newline at the end of the article. 583 (when (stringp gnus-command-method) 584 (setq gnus-command-method (gnus-server-to-method gnus-command-method))) 585 (when (and (not gnus-command-method) 586 (stringp group)) 587 (setq gnus-command-method (or (gnus-find-method-for-group group) 588 (gnus-group-name-to-method group)))) 589 (goto-char (point-max)) 590 (unless (bolp) 591 (insert "\n")) 592 (unless no-encode 593 (let ((message-options message-options)) 594 (message-options-set-recipient) 595 (save-restriction 596 (message-narrow-to-head) 597 (let ((mail-parse-charset message-default-charset)) 598 (mail-encode-encoded-word-buffer))) 599 (message-encode-message-body))) 600(let ((gnus-command-method (or gnus-command-method 601 (gnus-find-method-for-group group))) 602 (result 603 (funcall 604 (gnus-get-function gnus-command-method 'request-accept-article) 605 (if (stringp group) (gnus-group-real-name group) group) 606 (cadr gnus-command-method) 607 last))) 608 (when (and gnus-agent (gnus-agent-method-p gnus-command-method)) 609 (gnus-agent-regenerate-group group (list (cdr result)))) 610 result)) 611 612(defun gnus-request-replace-article (article group buffer &optional no-encode) 613 (unless no-encode 614 (let ((message-options message-options)) 615 (message-options-set-recipient) 616 (save-restriction 617 (message-narrow-to-head) 618 (let ((mail-parse-charset message-default-charset)) 619 (mail-encode-encoded-word-buffer))) 620 (message-encode-message-body))) 621 (let* ((func (car (gnus-group-name-to-method group))) 622 (result (funcall (intern (format "%s-request-replace-article" func)) 623 article (gnus-group-real-name group) buffer))) 624 (when (and gnus-agent (gnus-agent-method-p gnus-command-method)) 625 (gnus-agent-regenerate-group group (list article))) 626 result)) 627 628(defun gnus-request-associate-buffer (group) 629 (let ((gnus-command-method (gnus-find-method-for-group group))) 630 (funcall (gnus-get-function gnus-command-method 'request-associate-buffer) 631 (gnus-group-real-name group)))) 632 633(defun gnus-request-restore-buffer (article group) 634 "Request a new buffer restored to the state of ARTICLE." 635 (let ((gnus-command-method (gnus-find-method-for-group group))) 636 (funcall (gnus-get-function gnus-command-method 'request-restore-buffer) 637 article (gnus-group-real-name group) 638 (nth 1 gnus-command-method)))) 639 640(defun gnus-request-create-group (group &optional gnus-command-method args) 641 (when (stringp gnus-command-method) 642 (setq gnus-command-method (gnus-server-to-method gnus-command-method))) 643 (let ((gnus-command-method 644 (or gnus-command-method (gnus-find-method-for-group group)))) 645 (funcall (gnus-get-function gnus-command-method 'request-create-group) 646 (gnus-group-real-name group) (nth 1 gnus-command-method) args))) 647 648(defun gnus-request-delete-group (group &optional force) 649 (let* ((gnus-command-method (gnus-find-method-for-group group)) 650 (result 651 (funcall (gnus-get-function gnus-command-method 'request-delete-group) 652 (gnus-group-real-name group) force (nth 1 gnus-command-method)))) 653 (when result 654 (gnus-cache-delete-group group) 655 (gnus-agent-delete-group group)) 656 result)) 657 658(defun gnus-request-rename-group (group new-name) 659 (let* ((gnus-command-method (gnus-find-method-for-group group)) 660 (result 661 (funcall (gnus-get-function gnus-command-method 'request-rename-group) 662 (gnus-group-real-name group) 663 (gnus-group-real-name new-name) (nth 1 gnus-command-method)))) 664 (when result 665 (gnus-cache-rename-group group new-name) 666 (gnus-agent-rename-group group new-name)) 667 result)) 668 669(defun gnus-close-backends () 670 ;; Send a close request to all backends that support such a request. 671 (let ((methods gnus-valid-select-methods) 672 (gnus-inhibit-demon t) 673 func gnus-command-method) 674 (while (setq gnus-command-method (pop methods)) 675 (when (fboundp (setq func (intern 676 (concat (car gnus-command-method) 677 "-request-close")))) 678 (funcall func))))) 679 680(defun gnus-asynchronous-p (gnus-command-method) 681 (let ((func (gnus-get-function gnus-command-method 'asynchronous-p t))) 682 (when (fboundp func) 683 (funcall func)))) 684 685(defun gnus-remove-denial (gnus-command-method) 686 (when (stringp gnus-command-method) 687 (setq gnus-command-method (gnus-server-to-method gnus-command-method))) 688 (let* ((elem (assoc gnus-command-method gnus-opened-servers)) 689 (status (cadr elem))) 690 ;; If this hasn't been opened before, we add it to the list. 691 (when (eq status 'denied) 692 ;; Set the status of this server. 693 (setcar (cdr elem) 'closed)))) 694 695(provide 'gnus-int) 696 697;;; arch-tag: bbc90087-9b7f-4017-a92c-3abf180ac86d 698;;; gnus-int.el ends here 699