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1422 lines
46 KiB
EmacsLisp
1422 lines
46 KiB
EmacsLisp
;;; gnus-agent.el --- unplugged support for Gnus
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;; Copyright (C) 1997,98 Free Software Foundation, Inc.
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;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Commentary:
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;;; Code:
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(require 'gnus)
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(require 'gnus-cache)
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(require 'nnvirtual)
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(require 'gnus-sum)
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(eval-when-compile (require 'cl))
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(defcustom gnus-agent-directory (nnheader-concat gnus-directory "agent/")
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"Where the Gnus agent will store its files."
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:group 'gnus-agent
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:type 'directory)
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(defcustom gnus-agent-plugged-hook nil
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"Hook run when plugging into the network."
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:group 'gnus-agent
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:type 'hook)
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(defcustom gnus-agent-unplugged-hook nil
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"Hook run when unplugging from the network."
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:group 'gnus-agent
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:type 'hook)
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(defcustom gnus-agent-handle-level gnus-level-subscribed
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"Groups on levels higher than this variable will be ignored by the Agent."
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:group 'gnus-agent
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:type 'integer)
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(defcustom gnus-agent-expire-days 7
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"Read articles older than this will be expired."
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:group 'gnus-agent
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:type 'integer)
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(defcustom gnus-agent-expire-all nil
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"If non-nil, also expire unread, ticked and dormant articles.
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If nil, only read articles will be expired."
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:group 'gnus-agent
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:type 'boolean)
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(defcustom gnus-agent-group-mode-hook nil
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"Hook run in Agent group minor modes."
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:group 'gnus-agent
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:type 'hook)
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(defcustom gnus-agent-summary-mode-hook nil
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"Hook run in Agent summary minor modes."
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:group 'gnus-agent
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:type 'hook)
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(defcustom gnus-agent-server-mode-hook nil
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"Hook run in Agent summary minor modes."
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:group 'gnus-agent
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:type 'hook)
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;;; Internal variables
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(defvar gnus-agent-meta-information-header "X-Gnus-Agent-Meta-Information")
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(defvar gnus-agent-history-buffers nil)
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(defvar gnus-agent-buffer-alist nil)
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(defvar gnus-agent-article-alist nil)
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(defvar gnus-agent-group-alist nil)
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(defvar gnus-agent-covered-methods nil)
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(defvar gnus-category-alist nil)
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(defvar gnus-agent-current-history nil)
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(defvar gnus-agent-overview-buffer nil)
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(defvar gnus-category-predicate-cache nil)
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(defvar gnus-category-group-cache nil)
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(defvar gnus-agent-spam-hashtb nil)
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(defvar gnus-agent-file-name nil)
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(defvar gnus-agent-send-mail-function nil)
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(defvar gnus-agent-file-coding-system 'no-conversion)
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;; Dynamic variables
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(defvar gnus-headers)
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(defvar gnus-score)
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;;;
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;;; Setup
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;;;
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(defun gnus-open-agent ()
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(setq gnus-agent t)
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(gnus-agent-read-servers)
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(gnus-category-read)
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(setq gnus-agent-overview-buffer
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(gnus-get-buffer-create " *Gnus agent overview*"))
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(add-hook 'gnus-group-mode-hook 'gnus-agent-mode)
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(add-hook 'gnus-summary-mode-hook 'gnus-agent-mode)
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(add-hook 'gnus-server-mode-hook 'gnus-agent-mode))
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(gnus-add-shutdown 'gnus-close-agent 'gnus)
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(defun gnus-close-agent ()
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(setq gnus-agent-covered-methods nil
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gnus-category-predicate-cache nil
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gnus-category-group-cache nil
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gnus-agent-spam-hashtb nil)
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(gnus-kill-buffer gnus-agent-overview-buffer))
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;;;
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;;; Utility functions
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;;;
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(defun gnus-agent-read-file (file)
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"Load FILE and do a `read' there."
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(nnheader-temp-write nil
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(ignore-errors
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(nnheader-insert-file-contents file)
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(goto-char (point-min))
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(read (current-buffer)))))
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(defsubst gnus-agent-method ()
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(concat (symbol-name (car gnus-command-method)) "/"
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(if (equal (cadr gnus-command-method) "")
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"unnamed"
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(cadr gnus-command-method))))
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(defsubst gnus-agent-directory ()
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"Path of the Gnus agent directory."
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(nnheader-concat gnus-agent-directory
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(nnheader-translate-file-chars (gnus-agent-method)) "/"))
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(defun gnus-agent-lib-file (file)
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"The full path of the Gnus agent library FILE."
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(concat (gnus-agent-directory) "agent.lib/" file))
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;;; Fetching setup functions.
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(defun gnus-agent-start-fetch ()
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"Initialize data structures for efficient fetching."
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(gnus-agent-open-history)
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(setq gnus-agent-current-history (gnus-agent-history-buffer)))
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(defun gnus-agent-stop-fetch ()
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"Save all data structures and clean up."
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(gnus-agent-save-history)
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(gnus-agent-close-history)
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(setq gnus-agent-spam-hashtb nil)
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(save-excursion
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(set-buffer nntp-server-buffer)
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(widen)))
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(defmacro gnus-agent-with-fetch (&rest forms)
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"Do FORMS safely."
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`(unwind-protect
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(progn
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(gnus-agent-start-fetch)
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,@forms)
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(gnus-agent-stop-fetch)))
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(put 'gnus-agent-with-fetch 'lisp-indent-function 0)
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(put 'gnus-agent-with-fetch 'edebug-form-spec '(body))
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;;;
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;;; Mode infestation
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;;;
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(defvar gnus-agent-mode-hook nil
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"Hook run when installing agent mode.")
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(defvar gnus-agent-mode nil)
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(defvar gnus-agent-mode-status '(gnus-agent-mode " Plugged"))
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(defun gnus-agent-mode ()
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"Minor mode for providing a agent support in Gnus buffers."
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(let* ((buffer (progn (string-match "^gnus-\\(.*\\)-mode$"
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(symbol-name major-mode))
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(match-string 1 (symbol-name major-mode))))
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(mode (intern (format "gnus-agent-%s-mode" buffer))))
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(set (make-local-variable 'gnus-agent-mode) t)
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(set mode nil)
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(set (make-local-variable mode) t)
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;; Set up the menu.
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(when (gnus-visual-p 'agent-menu 'menu)
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(funcall (intern (format "gnus-agent-%s-make-menu-bar" buffer))))
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(unless (assq 'gnus-agent-mode minor-mode-alist)
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(push gnus-agent-mode-status minor-mode-alist))
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(unless (assq mode minor-mode-map-alist)
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(push (cons mode (symbol-value (intern (format "gnus-agent-%s-mode-map"
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buffer))))
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minor-mode-map-alist))
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(when (eq major-mode 'gnus-group-mode)
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(gnus-agent-toggle-plugged gnus-plugged))
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(gnus-run-hooks 'gnus-agent-mode-hook
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(intern (format "gnus-agent-%s-mode-hook" buffer)))))
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(defvar gnus-agent-group-mode-map (make-sparse-keymap))
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(gnus-define-keys gnus-agent-group-mode-map
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"Ju" gnus-agent-fetch-groups
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"Jc" gnus-enter-category-buffer
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"Jj" gnus-agent-toggle-plugged
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"Js" gnus-agent-fetch-session
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"JS" gnus-group-send-drafts
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"Ja" gnus-agent-add-group)
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(defun gnus-agent-group-make-menu-bar ()
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(unless (boundp 'gnus-agent-group-menu)
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(easy-menu-define
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gnus-agent-group-menu gnus-agent-group-mode-map ""
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'("Agent"
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["Toggle plugged" gnus-agent-toggle-plugged t]
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["List categories" gnus-enter-category-buffer t]
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["Send drafts" gnus-group-send-drafts gnus-plugged]
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("Fetch"
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["All" gnus-agent-fetch-session gnus-plugged]
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["Group" gnus-agent-fetch-group gnus-plugged])))))
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(defvar gnus-agent-summary-mode-map (make-sparse-keymap))
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(gnus-define-keys gnus-agent-summary-mode-map
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"Jj" gnus-agent-toggle-plugged
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"J#" gnus-agent-mark-article
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"J\M-#" gnus-agent-unmark-article
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"@" gnus-agent-toggle-mark
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"Jc" gnus-agent-catchup)
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(defun gnus-agent-summary-make-menu-bar ()
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(unless (boundp 'gnus-agent-summary-menu)
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(easy-menu-define
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gnus-agent-summary-menu gnus-agent-summary-mode-map ""
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'("Agent"
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["Toggle plugged" gnus-agent-toggle-plugged t]
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["Mark as downloadable" gnus-agent-mark-article t]
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["Unmark as downloadable" gnus-agent-unmark-article t]
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["Toggle mark" gnus-agent-toggle-mark t]
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["Catchup undownloaded" gnus-agent-catchup t]))))
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(defvar gnus-agent-server-mode-map (make-sparse-keymap))
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(gnus-define-keys gnus-agent-server-mode-map
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"Jj" gnus-agent-toggle-plugged
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"Ja" gnus-agent-add-server
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"Jr" gnus-agent-remove-server)
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(defun gnus-agent-server-make-menu-bar ()
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(unless (boundp 'gnus-agent-server-menu)
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(easy-menu-define
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gnus-agent-server-menu gnus-agent-server-mode-map ""
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'("Agent"
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["Toggle plugged" gnus-agent-toggle-plugged t]
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["Add" gnus-agent-add-server t]
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["Remove" gnus-agent-remove-server t]))))
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(defun gnus-agent-toggle-plugged (plugged)
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"Toggle whether Gnus is unplugged or not."
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(interactive (list (not gnus-plugged)))
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(if plugged
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(progn
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(setq gnus-plugged plugged)
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(gnus-run-hooks 'gnus-agent-plugged-hook)
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(setcar (cdr gnus-agent-mode-status) " Plugged"))
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(gnus-agent-close-connections)
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(setq gnus-plugged plugged)
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(gnus-run-hooks 'gnus-agent-unplugged-hook)
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(setcar (cdr gnus-agent-mode-status) " Unplugged"))
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(set-buffer-modified-p t))
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(defun gnus-agent-close-connections ()
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"Close all methods covered by the Gnus agent."
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(let ((methods gnus-agent-covered-methods))
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(while methods
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(gnus-close-server (pop methods)))))
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;;;###autoload
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(defun gnus-unplugged ()
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"Start Gnus unplugged."
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(interactive)
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(setq gnus-plugged nil)
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(gnus))
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;;;###autoload
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(defun gnus-plugged ()
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"Start Gnus plugged."
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(interactive)
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(setq gnus-plugged t)
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(gnus))
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;;;###autoload
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(defun gnus-agentize ()
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"Allow Gnus to be an offline newsreader.
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The normal usage of this command is to put the following as the
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last form in your `.gnus.el' file:
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\(gnus-agentize)
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This will modify the `gnus-before-startup-hook', `gnus-post-method',
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and `message-send-mail-function' variables, and install the Gnus
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agent minor mode in all Gnus buffers."
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(interactive)
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(gnus-open-agent)
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(add-hook 'gnus-setup-news-hook 'gnus-agent-queue-setup)
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(unless gnus-agent-send-mail-function
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(setq gnus-agent-send-mail-function message-send-mail-function
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message-send-mail-function 'gnus-agent-send-mail))
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(unless gnus-agent-covered-methods
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(setq gnus-agent-covered-methods (list gnus-select-method))))
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(defun gnus-agent-queue-setup ()
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"Make sure the queue group exists."
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(unless (gnus-gethash "nndraft:queue" gnus-newsrc-hashtb)
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(gnus-request-create-group "queue" '(nndraft ""))
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(let ((gnus-level-default-subscribed 1))
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(gnus-subscribe-group "nndraft:queue" nil '(nndraft "")))
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(gnus-group-set-parameter
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"nndraft:queue" 'gnus-dummy '((gnus-draft-mode)))))
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(defun gnus-agent-send-mail ()
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(if gnus-plugged
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(funcall gnus-agent-send-mail-function)
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(goto-char (point-min))
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(re-search-forward
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(concat "^" (regexp-quote mail-header-separator) "\n"))
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(replace-match "\n")
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(gnus-agent-insert-meta-information 'mail)
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(gnus-request-accept-article "nndraft:queue")))
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(defun gnus-agent-insert-meta-information (type &optional method)
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"Insert meta-information into the message that says how it's to be posted.
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TYPE can be either `mail' or `news'. If the latter METHOD can
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be a select method."
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(save-excursion
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(message-remove-header gnus-agent-meta-information-header)
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(goto-char (point-min))
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(insert gnus-agent-meta-information-header ": "
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(symbol-name type) " " (format "%S" method)
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"\n")
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(forward-char -1)
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(while (search-backward "\n" nil t)
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(replace-match "\\n" t t))))
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;;;
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;;; Group mode commands
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;;;
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(defun gnus-agent-fetch-groups (n)
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"Put all new articles in the current groups into the Agent."
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(interactive "P")
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(gnus-group-iterate n 'gnus-agent-fetch-group))
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(defun gnus-agent-fetch-group (group)
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"Put all new articles in GROUP into the Agent."
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(interactive (list (gnus-group-group-name)))
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(unless group
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(error "No group on the current line"))
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(let ((gnus-command-method (gnus-find-method-for-group group)))
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(gnus-agent-with-fetch
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(gnus-agent-fetch-group-1 group gnus-command-method)
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(gnus-message 5 "Fetching %s...done" group))))
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(defun gnus-agent-add-group (category arg)
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"Add the current group to an agent category."
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(interactive
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(list
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(intern
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(completing-read
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"Add to category: "
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(mapcar (lambda (cat) (list (symbol-name (car cat))))
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gnus-category-alist)
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nil t))
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current-prefix-arg))
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(let ((cat (assq category gnus-category-alist))
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c groups)
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(gnus-group-iterate arg
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(lambda (group)
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(when (cadddr (setq c (gnus-group-category group)))
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(setf (cadddr c) (delete group (cadddr c))))
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(push group groups)))
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(setf (cadddr cat) (nconc (cadddr cat) groups))
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(gnus-category-write)))
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;;;
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;;; Server mode commands
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;;;
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(defun gnus-agent-add-server (server)
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"Enroll SERVER in the agent program."
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(interactive (list (gnus-server-server-name)))
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(unless server
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(error "No server on the current line"))
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(let ((method (gnus-server-get-method nil (gnus-server-server-name))))
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(when (member method gnus-agent-covered-methods)
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(error "Server already in the agent program"))
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(push method gnus-agent-covered-methods)
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(gnus-agent-write-servers)
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(message "Entered %s into the Agent" server)))
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(defun gnus-agent-remove-server (server)
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"Remove SERVER from the agent program."
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(interactive (list (gnus-server-server-name)))
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(unless server
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(error "No server on the current line"))
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(let ((method (gnus-server-get-method nil (gnus-server-server-name))))
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(unless (member method gnus-agent-covered-methods)
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(error "Server not in the agent program"))
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(setq gnus-agent-covered-methods
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(delete method gnus-agent-covered-methods))
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(gnus-agent-write-servers)
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(message "Removed %s from the agent" server)))
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(defun gnus-agent-read-servers ()
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"Read the alist of covered servers."
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(setq gnus-agent-covered-methods
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(gnus-agent-read-file
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(nnheader-concat gnus-agent-directory "lib/servers"))))
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(defun gnus-agent-write-servers ()
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"Write the alist of covered servers."
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(nnheader-temp-write (nnheader-concat gnus-agent-directory "lib/servers")
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(prin1 gnus-agent-covered-methods (current-buffer))))
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;;;
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;;; Summary commands
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;;;
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(defun gnus-agent-mark-article (n &optional unmark)
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"Mark the next N articles as downloadable.
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If N is negative, mark backward instead. If UNMARK is non-nil, remove
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the mark instead. The difference between N and the actual number of
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articles marked is returned."
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(interactive "p")
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(let ((backward (< n 0))
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(n (abs n)))
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(while (and
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(> n 0)
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(progn
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(gnus-summary-set-agent-mark
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(gnus-summary-article-number) unmark)
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(zerop (gnus-summary-next-subject (if backward -1 1) nil t))))
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(setq n (1- n)))
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(when (/= 0 n)
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(gnus-message 7 "No more articles"))
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(gnus-summary-recenter)
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(gnus-summary-position-point)
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n))
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(defun gnus-agent-unmark-article (n)
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"Remove the downloadable mark from the next N articles.
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If N is negative, unmark backward instead. The difference between N and
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the actual number of articles unmarked is returned."
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||
(interactive "p")
|
||
(gnus-agent-mark-article n t))
|
||
|
||
(defun gnus-agent-toggle-mark (n)
|
||
"Toggle the downloadable mark from the next N articles.
|
||
If N is negative, toggle backward instead. The difference between N and
|
||
the actual number of articles toggled is returned."
|
||
(interactive "p")
|
||
(gnus-agent-mark-article n 'toggle))
|
||
|
||
(defun gnus-summary-set-agent-mark (article &optional unmark)
|
||
"Mark ARTICLE as downloadable."
|
||
(let ((unmark (if (and (not (null unmark)) (not (eq t unmark)))
|
||
(memq article gnus-newsgroup-downloadable)
|
||
unmark)))
|
||
(if unmark
|
||
(progn
|
||
(setq gnus-newsgroup-downloadable
|
||
(delq article gnus-newsgroup-downloadable))
|
||
(push article gnus-newsgroup-undownloaded))
|
||
(setq gnus-newsgroup-undownloaded
|
||
(delq article gnus-newsgroup-undownloaded))
|
||
(push article gnus-newsgroup-downloadable))
|
||
(gnus-summary-update-mark
|
||
(if unmark gnus-undownloaded-mark gnus-downloadable-mark)
|
||
'unread)))
|
||
|
||
(defun gnus-agent-get-undownloaded-list ()
|
||
"Mark all unfetched articles as read."
|
||
(let ((gnus-command-method (gnus-find-method-for-group gnus-newsgroup-name)))
|
||
(when (and (not gnus-plugged)
|
||
(gnus-agent-method-p gnus-command-method))
|
||
(gnus-agent-load-alist gnus-newsgroup-name)
|
||
(let ((articles gnus-newsgroup-unreads)
|
||
article)
|
||
(while (setq article (pop articles))
|
||
(unless (or (cdr (assq article gnus-agent-article-alist))
|
||
(memq article gnus-newsgroup-downloadable))
|
||
(push article gnus-newsgroup-undownloaded)))))))
|
||
|
||
(defun gnus-agent-catchup ()
|
||
"Mark all undownloaded articles as read."
|
||
(interactive)
|
||
(save-excursion
|
||
(while gnus-newsgroup-undownloaded
|
||
(gnus-summary-mark-article
|
||
(pop gnus-newsgroup-undownloaded) gnus-catchup-mark)))
|
||
(gnus-summary-position-point))
|
||
|
||
;;;
|
||
;;; Internal functions
|
||
;;;
|
||
|
||
(defun gnus-agent-save-active (method)
|
||
(when (gnus-agent-method-p method)
|
||
(let* ((gnus-command-method method)
|
||
(file (gnus-agent-lib-file "active")))
|
||
(gnus-make-directory (file-name-directory file))
|
||
(let ((coding-system-for-write gnus-agent-file-coding-system))
|
||
(write-region (point-min) (point-max) file nil 'silent))
|
||
(when (file-exists-p (gnus-agent-lib-file "groups"))
|
||
(delete-file (gnus-agent-lib-file "groups"))))))
|
||
|
||
(defun gnus-agent-save-groups (method)
|
||
(let* ((gnus-command-method method)
|
||
(file (gnus-agent-lib-file "groups")))
|
||
(gnus-make-directory (file-name-directory file))
|
||
(let ((coding-system-for-write gnus-agent-file-coding-system))
|
||
(write-region (point-min) (point-max) file nil 'silent))
|
||
(when (file-exists-p (gnus-agent-lib-file "active"))
|
||
(delete-file (gnus-agent-lib-file "active")))))
|
||
|
||
(defun gnus-agent-save-group-info (method group active)
|
||
(when (gnus-agent-method-p method)
|
||
(let* ((gnus-command-method method)
|
||
(file (if nntp-server-list-active-group
|
||
(gnus-agent-lib-file "active")
|
||
(gnus-agent-lib-file "groups"))))
|
||
(gnus-make-directory (file-name-directory file))
|
||
(nnheader-temp-write file
|
||
(when (file-exists-p file)
|
||
(nnheader-insert-file-contents file))
|
||
(goto-char (point-min))
|
||
(if nntp-server-list-active-group
|
||
(progn
|
||
(when (re-search-forward
|
||
(concat "^" (regexp-quote group) " ") nil t)
|
||
(gnus-delete-line))
|
||
(insert group " " (number-to-string (cdr active)) " "
|
||
(number-to-string (car active)) " y\n"))
|
||
(when (re-search-forward (concat (regexp-quote group) " ") nil t)
|
||
(gnus-delete-line))
|
||
(insert-buffer-substring nntp-server-buffer))))))
|
||
|
||
(defun gnus-agent-group-path (group)
|
||
"Translate GROUP into a path."
|
||
(if nnmail-use-long-file-names
|
||
(gnus-group-real-name group)
|
||
(nnheader-replace-chars-in-string
|
||
(nnheader-translate-file-chars (gnus-group-real-name group))
|
||
?. ?/)))
|
||
|
||
|
||
|
||
(defun gnus-agent-method-p (method)
|
||
"Say whether METHOD is covered by the agent."
|
||
(member method gnus-agent-covered-methods))
|
||
|
||
(defun gnus-agent-get-function (method)
|
||
(if (and (not gnus-plugged)
|
||
(gnus-agent-method-p method))
|
||
(progn
|
||
(require 'nnagent)
|
||
'nnagent)
|
||
(car method)))
|
||
|
||
;;; History functions
|
||
|
||
(defun gnus-agent-history-buffer ()
|
||
(cdr (assoc (gnus-agent-method) gnus-agent-history-buffers)))
|
||
|
||
(defun gnus-agent-open-history ()
|
||
(save-excursion
|
||
(push (cons (gnus-agent-method)
|
||
(set-buffer (gnus-get-buffer-create
|
||
(format " *Gnus agent %s history*"
|
||
(gnus-agent-method)))))
|
||
gnus-agent-history-buffers)
|
||
(erase-buffer)
|
||
(insert "\n")
|
||
(let ((file (gnus-agent-lib-file "history")))
|
||
(when (file-exists-p file)
|
||
(insert-file file))
|
||
(set (make-local-variable 'gnus-agent-file-name) file))))
|
||
|
||
(defun gnus-agent-save-history ()
|
||
(save-excursion
|
||
(set-buffer gnus-agent-current-history)
|
||
(gnus-make-directory (file-name-directory gnus-agent-file-name))
|
||
(let ((coding-system-for-write gnus-agent-file-coding-system))
|
||
(write-region (1+ (point-min)) (point-max)
|
||
gnus-agent-file-name nil 'silent))))
|
||
|
||
(defun gnus-agent-close-history ()
|
||
(when (gnus-buffer-live-p gnus-agent-current-history)
|
||
(kill-buffer gnus-agent-current-history)
|
||
(setq gnus-agent-history-buffers
|
||
(delq (assoc (gnus-agent-method) gnus-agent-history-buffers)
|
||
gnus-agent-history-buffers))))
|
||
|
||
(defun gnus-agent-enter-history (id group-arts date)
|
||
(save-excursion
|
||
(set-buffer gnus-agent-current-history)
|
||
(goto-char (point-max))
|
||
(insert id "\t" (number-to-string date) "\t")
|
||
(while group-arts
|
||
(insert (caar group-arts) " " (number-to-string (cdr (pop group-arts)))
|
||
" "))
|
||
(insert "\n")))
|
||
|
||
(defun gnus-agent-article-in-history-p (id)
|
||
(save-excursion
|
||
(set-buffer (gnus-agent-history-buffer))
|
||
(goto-char (point-min))
|
||
(search-forward (concat "\n" id "\t") nil t)))
|
||
|
||
(defun gnus-agent-history-path (id)
|
||
(save-excursion
|
||
(set-buffer (gnus-agent-history-buffer))
|
||
(goto-char (point-min))
|
||
(when (search-forward (concat "\n" id "\t") nil t)
|
||
(let ((method (gnus-agent-method)))
|
||
(let (paths group)
|
||
(while (not (numberp (setq group (read (current-buffer)))))
|
||
(push (concat method "/" group) paths))
|
||
(nreverse paths))))))
|
||
|
||
;;;
|
||
;;; Fetching
|
||
;;;
|
||
|
||
(defun gnus-agent-fetch-articles (group articles)
|
||
"Fetch ARTICLES from GROUP and put them into the Agent."
|
||
(when articles
|
||
;; Prune off articles that we have already fetched.
|
||
(while (and articles
|
||
(cdr (assq (car articles) gnus-agent-article-alist)))
|
||
(pop articles))
|
||
(let ((arts articles))
|
||
(while (cdr arts)
|
||
(if (cdr (assq (cadr arts) gnus-agent-article-alist))
|
||
(setcdr arts (cddr arts))
|
||
(setq arts (cdr arts)))))
|
||
(when articles
|
||
(let ((dir (concat
|
||
(gnus-agent-directory)
|
||
(gnus-agent-group-path group) "/"))
|
||
(date (gnus-time-to-day (current-time)))
|
||
(case-fold-search t)
|
||
pos crosses id elem)
|
||
(gnus-make-directory dir)
|
||
(gnus-message 7 "Fetching articles for %s..." group)
|
||
;; Fetch the articles from the backend.
|
||
(if (gnus-check-backend-function 'retrieve-articles group)
|
||
(setq pos (gnus-retrieve-articles articles group))
|
||
(nnheader-temp-write nil
|
||
(let (article)
|
||
(while (setq article (pop articles))
|
||
(when (gnus-request-article article group)
|
||
(goto-char (point-max))
|
||
(push (cons article (point)) pos)
|
||
(insert-buffer-substring nntp-server-buffer)))
|
||
(copy-to-buffer nntp-server-buffer (point-min) (point-max))
|
||
(setq pos (nreverse pos)))))
|
||
;; Then save these articles into the Agent.
|
||
(save-excursion
|
||
(set-buffer nntp-server-buffer)
|
||
(while pos
|
||
(narrow-to-region (cdar pos) (or (cdadr pos) (point-max)))
|
||
(goto-char (point-min))
|
||
(when (search-forward "\n\n" nil t)
|
||
(when (search-backward "\nXrefs: " nil t)
|
||
;; Handle crossposting.
|
||
(skip-chars-forward "^ ")
|
||
(skip-chars-forward " ")
|
||
(setq crosses nil)
|
||
(while (looking-at "\\([^: \n]+\\):\\([0-9]+\\) +")
|
||
(push (cons (buffer-substring (match-beginning 1)
|
||
(match-end 1))
|
||
(buffer-substring (match-beginning 2)
|
||
(match-end 2)))
|
||
crosses)
|
||
(goto-char (match-end 0)))
|
||
(gnus-agent-crosspost crosses (caar pos))))
|
||
(goto-char (point-min))
|
||
(if (not (re-search-forward "^Message-ID: *<\\([^>\n]+\\)>" nil t))
|
||
(setq id "No-Message-ID-in-article")
|
||
(setq id (buffer-substring (match-beginning 1) (match-end 1))))
|
||
(let ((coding-system-for-write
|
||
gnus-agent-file-coding-system))
|
||
(write-region (point-min) (point-max)
|
||
(concat dir (number-to-string (caar pos)))
|
||
nil 'silent))
|
||
(when (setq elem (assq (caar pos) gnus-agent-article-alist))
|
||
(setcdr elem t))
|
||
(gnus-agent-enter-history
|
||
id (or crosses (list (cons group (caar pos)))) date)
|
||
(widen)
|
||
(pop pos)))
|
||
(gnus-agent-save-alist group)))))
|
||
|
||
(defun gnus-agent-crosspost (crosses article)
|
||
(let (gnus-agent-article-alist group alist beg end)
|
||
(save-excursion
|
||
(set-buffer gnus-agent-overview-buffer)
|
||
(when (nnheader-find-nov-line article)
|
||
(forward-word 1)
|
||
(setq beg (point))
|
||
(setq end (progn (forward-line 1) (point)))))
|
||
(while crosses
|
||
(setq group (caar crosses))
|
||
(unless (setq alist (assoc group gnus-agent-group-alist))
|
||
(push (setq alist (list group (gnus-agent-load-alist (caar crosses))))
|
||
gnus-agent-group-alist))
|
||
(setcdr alist (cons (cons (cdar crosses) t) (cdr alist)))
|
||
(save-excursion
|
||
(set-buffer (gnus-get-buffer-create (format " *Gnus agent overview %s*"
|
||
group)))
|
||
(when (= (point-max) (point-min))
|
||
(push (cons group (current-buffer)) gnus-agent-buffer-alist)
|
||
(ignore-errors
|
||
(nnheader-insert-file-contents
|
||
(gnus-agent-article-name ".overview" group))))
|
||
(nnheader-find-nov-line (string-to-number (cdar crosses)))
|
||
(insert (string-to-number (cdar crosses)))
|
||
(insert-buffer-substring gnus-agent-overview-buffer beg end))
|
||
(pop crosses))))
|
||
|
||
(defun gnus-agent-flush-cache ()
|
||
(save-excursion
|
||
(while gnus-agent-buffer-alist
|
||
(set-buffer (cdar gnus-agent-buffer-alist))
|
||
(let ((coding-system-for-write
|
||
gnus-agent-file-coding-system))
|
||
(write-region (point-min) (point-max)
|
||
(gnus-agent-article-name ".overview"
|
||
(caar gnus-agent-buffer-alist))
|
||
nil 'silent))
|
||
(pop gnus-agent-buffer-alist))
|
||
(while gnus-agent-group-alist
|
||
(nnheader-temp-write (caar gnus-agent-group-alist)
|
||
(princ (cdar gnus-agent-group-alist))
|
||
(insert "\n"))
|
||
(pop gnus-agent-group-alist))))
|
||
|
||
(defun gnus-agent-fetch-headers (group &optional force)
|
||
(let ((articles (if (gnus-agent-load-alist group)
|
||
(gnus-sorted-intersection
|
||
(gnus-list-of-unread-articles group)
|
||
(gnus-uncompress-range
|
||
(cons (1+ (caar (last gnus-agent-article-alist)))
|
||
(cdr (gnus-active group)))))
|
||
(gnus-list-of-unread-articles group))))
|
||
;; Fetch them.
|
||
(when articles
|
||
(gnus-message 7 "Fetching headers for %s..." group)
|
||
(save-excursion
|
||
(set-buffer nntp-server-buffer)
|
||
(unless (eq 'nov (gnus-retrieve-headers articles group))
|
||
(nnvirtual-convert-headers))
|
||
;; Save these headers for later processing.
|
||
(copy-to-buffer gnus-agent-overview-buffer (point-min) (point-max))
|
||
(let (file)
|
||
(when (file-exists-p
|
||
(setq file (gnus-agent-article-name ".overview" group)))
|
||
(gnus-agent-braid-nov group articles file))
|
||
(gnus-make-directory (nnheader-translate-file-chars
|
||
(file-name-directory file)))
|
||
(let ((coding-system-for-write
|
||
gnus-agent-file-coding-system))
|
||
(write-region (point-min) (point-max) file nil 'silent))
|
||
(gnus-agent-save-alist group articles nil)
|
||
(gnus-agent-enter-history
|
||
"last-header-fetched-for-session"
|
||
(list (cons group (nth (- (length articles) 1) articles)))
|
||
(gnus-time-to-day (current-time)))
|
||
articles)))))
|
||
|
||
(defsubst gnus-agent-copy-nov-line (article)
|
||
(let (b e)
|
||
(set-buffer gnus-agent-overview-buffer)
|
||
(setq b (point))
|
||
(if (eq article (read (current-buffer)))
|
||
(setq e (progn (forward-line 1) (point)))
|
||
(progn
|
||
(beginning-of-line)
|
||
(setq e b)))
|
||
(set-buffer nntp-server-buffer)
|
||
(insert-buffer-substring gnus-agent-overview-buffer b e)))
|
||
|
||
(defun gnus-agent-braid-nov (group articles file)
|
||
(set-buffer gnus-agent-overview-buffer)
|
||
(goto-char (point-min))
|
||
(set-buffer nntp-server-buffer)
|
||
(erase-buffer)
|
||
(nnheader-insert-file-contents file)
|
||
(goto-char (point-max))
|
||
(if (or (= (point-min) (point-max))
|
||
(progn
|
||
(forward-line -1)
|
||
(< (read (current-buffer)) (car articles))))
|
||
;; We have only headers that are after the older headers,
|
||
;; so we just append them.
|
||
(progn
|
||
(goto-char (point-max))
|
||
(insert-buffer-substring gnus-agent-overview-buffer))
|
||
;; We do it the hard way.
|
||
(nnheader-find-nov-line (car articles))
|
||
(gnus-agent-copy-nov-line (car articles))
|
||
(pop articles)
|
||
(while (and articles
|
||
(not (eobp)))
|
||
(while (and (not (eobp))
|
||
(< (read (current-buffer)) (car articles)))
|
||
(forward-line 1))
|
||
(beginning-of-line)
|
||
(unless (eobp)
|
||
(gnus-agent-copy-nov-line (car articles))
|
||
(setq articles (cdr articles))))
|
||
(when articles
|
||
(let (b e)
|
||
(set-buffer gnus-agent-overview-buffer)
|
||
(setq b (point)
|
||
e (point-max))
|
||
(set-buffer nntp-server-buffer)
|
||
(insert-buffer-substring gnus-agent-overview-buffer b e)))))
|
||
|
||
(defun gnus-agent-load-alist (group &optional dir)
|
||
"Load the article-state alist for GROUP."
|
||
(setq gnus-agent-article-alist
|
||
(gnus-agent-read-file
|
||
(if dir
|
||
(concat dir ".agentview")
|
||
(gnus-agent-article-name ".agentview" group)))))
|
||
|
||
(defun gnus-agent-save-alist (group &optional articles state dir)
|
||
"Save the article-state alist for GROUP."
|
||
(nnheader-temp-write (if dir
|
||
(concat dir ".agentview")
|
||
(gnus-agent-article-name ".agentview" group))
|
||
(princ (setq gnus-agent-article-alist
|
||
(nconc gnus-agent-article-alist
|
||
(mapcar (lambda (article) (cons article state))
|
||
articles)))
|
||
(current-buffer))
|
||
(insert "\n")))
|
||
|
||
(defun gnus-agent-article-name (article group)
|
||
(concat (gnus-agent-directory) (gnus-agent-group-path group) "/"
|
||
(if (stringp article) article (string-to-number article))))
|
||
|
||
;;;###autoload
|
||
(defun gnus-agent-batch-fetch ()
|
||
"Start Gnus and fetch session."
|
||
(interactive)
|
||
(gnus)
|
||
(gnus-agent-fetch-session)
|
||
(gnus-group-exit))
|
||
|
||
(defun gnus-agent-fetch-session ()
|
||
"Fetch all articles and headers that are eligible for fetching."
|
||
(interactive)
|
||
(unless gnus-agent-covered-methods
|
||
(error "No servers are covered by the Gnus agent"))
|
||
(unless gnus-plugged
|
||
(error "Can't fetch articles while Gnus is unplugged"))
|
||
(let ((methods gnus-agent-covered-methods)
|
||
groups group gnus-command-method)
|
||
(save-excursion
|
||
(while methods
|
||
(setq gnus-command-method (car methods))
|
||
(when (or (gnus-server-opened gnus-command-method)
|
||
(gnus-open-server gnus-command-method))
|
||
(setq groups (gnus-groups-from-server (car methods)))
|
||
(gnus-agent-with-fetch
|
||
(while (setq group (pop groups))
|
||
(when (<= (gnus-group-level group) gnus-agent-handle-level)
|
||
(gnus-agent-fetch-group-1 group gnus-command-method)))))
|
||
(pop methods))
|
||
(gnus-message 6 "Finished fetching articles into the Gnus agent"))))
|
||
|
||
(defun gnus-agent-fetch-group-1 (group method)
|
||
"Fetch GROUP."
|
||
(let ((gnus-command-method method)
|
||
gnus-newsgroup-dependencies gnus-newsgroup-headers
|
||
gnus-newsgroup-scored gnus-headers gnus-score
|
||
gnus-use-cache articles arts
|
||
category predicate info marks score-param)
|
||
;; Fetch headers.
|
||
(when (and (or (gnus-active group) (gnus-activate-group group))
|
||
(setq articles (gnus-agent-fetch-headers group)))
|
||
;; Parse them and see which articles we want to fetch.
|
||
(setq gnus-newsgroup-dependencies
|
||
(make-vector (length articles) 0))
|
||
(setq gnus-newsgroup-headers
|
||
(gnus-get-newsgroup-headers-xover articles nil nil group))
|
||
(setq category (gnus-group-category group))
|
||
(setq predicate
|
||
(gnus-get-predicate
|
||
(or (gnus-group-get-parameter group 'agent-predicate)
|
||
(cadr category))))
|
||
(setq score-param
|
||
(or (gnus-group-get-parameter group 'agent-score)
|
||
(caddr category)))
|
||
(when score-param
|
||
(gnus-score-headers (list (list score-param))))
|
||
(setq arts nil)
|
||
(while (setq gnus-headers (pop gnus-newsgroup-headers))
|
||
(setq gnus-score
|
||
(or (cdr (assq (mail-header-number gnus-headers)
|
||
gnus-newsgroup-scored))
|
||
gnus-summary-default-score))
|
||
(when (funcall predicate)
|
||
(push (mail-header-number gnus-headers)
|
||
arts)))
|
||
;; Fetch the articles.
|
||
(when arts
|
||
(gnus-agent-fetch-articles group arts)))
|
||
;; Perhaps we have some additional articles to fetch.
|
||
(setq arts (assq 'download (gnus-info-marks
|
||
(setq info (gnus-get-info group)))))
|
||
(when (cdr arts)
|
||
(gnus-agent-fetch-articles
|
||
group (gnus-uncompress-range (cdr arts)))
|
||
(setq marks (delq arts (gnus-info-marks info)))
|
||
(gnus-info-set-marks info marks))))
|
||
|
||
;;;
|
||
;;; Agent Category Mode
|
||
;;;
|
||
|
||
(defvar gnus-category-mode-hook nil
|
||
"Hook run in `gnus-category-mode' buffers.")
|
||
|
||
(defvar gnus-category-line-format " %(%20c%): %g\n"
|
||
"Format of category lines.")
|
||
|
||
(defvar gnus-category-mode-line-format "Gnus: %%b"
|
||
"The format specification for the category mode line.")
|
||
|
||
(defvar gnus-agent-short-article 100
|
||
"Articles that have fewer lines than this are short.")
|
||
|
||
(defvar gnus-agent-long-article 200
|
||
"Articles that have more lines than this are long.")
|
||
|
||
(defvar gnus-agent-low-score 0
|
||
"Articles that have a score lower than this have a low score.")
|
||
|
||
(defvar gnus-agent-high-score 0
|
||
"Articles that have a score higher than this have a high score.")
|
||
|
||
|
||
;;; Internal variables.
|
||
|
||
(defvar gnus-category-buffer "*Agent Category*")
|
||
|
||
(defvar gnus-category-line-format-alist
|
||
`((?c gnus-tmp-name ?s)
|
||
(?g gnus-tmp-groups ?d)))
|
||
|
||
(defvar gnus-category-mode-line-format-alist
|
||
`((?u user-defined ?s)))
|
||
|
||
(defvar gnus-category-line-format-spec nil)
|
||
(defvar gnus-category-mode-line-format-spec nil)
|
||
|
||
(defvar gnus-category-mode-map nil)
|
||
(put 'gnus-category-mode 'mode-class 'special)
|
||
|
||
(unless gnus-category-mode-map
|
||
(setq gnus-category-mode-map (make-sparse-keymap))
|
||
(suppress-keymap gnus-category-mode-map)
|
||
|
||
(gnus-define-keys gnus-category-mode-map
|
||
"q" gnus-category-exit
|
||
"k" gnus-category-kill
|
||
"c" gnus-category-copy
|
||
"a" gnus-category-add
|
||
"p" gnus-category-edit-predicate
|
||
"g" gnus-category-edit-groups
|
||
"s" gnus-category-edit-score
|
||
"l" gnus-category-list
|
||
|
||
"\C-c\C-i" gnus-info-find-node
|
||
"\C-c\C-b" gnus-bug))
|
||
|
||
(defvar gnus-category-menu-hook nil
|
||
"*Hook run after the creation of the menu.")
|
||
|
||
(defun gnus-category-make-menu-bar ()
|
||
(gnus-turn-off-edit-menu 'category)
|
||
(unless (boundp 'gnus-category-menu)
|
||
(easy-menu-define
|
||
gnus-category-menu gnus-category-mode-map ""
|
||
'("Categories"
|
||
["Add" gnus-category-add t]
|
||
["Kill" gnus-category-kill t]
|
||
["Copy" gnus-category-copy t]
|
||
["Edit predicate" gnus-category-edit-predicate t]
|
||
["Edit score" gnus-category-edit-score t]
|
||
["Edit groups" gnus-category-edit-groups t]
|
||
["Exit" gnus-category-exit t]))
|
||
|
||
(gnus-run-hooks 'gnus-category-menu-hook)))
|
||
|
||
(defun gnus-category-mode ()
|
||
"Major mode for listing and editing agent categories.
|
||
|
||
All normal editing commands are switched off.
|
||
\\<gnus-category-mode-map>
|
||
For more in-depth information on this mode, read the manual
|
||
(`\\[gnus-info-find-node]').
|
||
|
||
The following commands are available:
|
||
|
||
\\{gnus-category-mode-map}"
|
||
(interactive)
|
||
(when (gnus-visual-p 'category-menu 'menu)
|
||
(gnus-category-make-menu-bar))
|
||
(kill-all-local-variables)
|
||
(gnus-simplify-mode-line)
|
||
(setq major-mode 'gnus-category-mode)
|
||
(setq mode-name "Category")
|
||
(gnus-set-default-directory)
|
||
(setq mode-line-process nil)
|
||
(use-local-map gnus-category-mode-map)
|
||
(buffer-disable-undo (current-buffer))
|
||
(setq truncate-lines t)
|
||
(setq buffer-read-only t)
|
||
(gnus-run-hooks 'gnus-category-mode-hook))
|
||
|
||
(defalias 'gnus-category-position-point 'gnus-goto-colon)
|
||
|
||
(defun gnus-category-insert-line (category)
|
||
(let* ((gnus-tmp-name (car category))
|
||
(gnus-tmp-groups (length (cadddr category))))
|
||
(beginning-of-line)
|
||
(gnus-add-text-properties
|
||
(point)
|
||
(prog1 (1+ (point))
|
||
;; Insert the text.
|
||
(eval gnus-category-line-format-spec))
|
||
(list 'gnus-category gnus-tmp-name))))
|
||
|
||
(defun gnus-enter-category-buffer ()
|
||
"Go to the Category buffer."
|
||
(interactive)
|
||
(gnus-category-setup-buffer)
|
||
(gnus-configure-windows 'category)
|
||
(gnus-category-prepare))
|
||
|
||
(defun gnus-category-setup-buffer ()
|
||
(unless (get-buffer gnus-category-buffer)
|
||
(save-excursion
|
||
(set-buffer (gnus-get-buffer-create gnus-category-buffer))
|
||
(gnus-category-mode))))
|
||
|
||
(defun gnus-category-prepare ()
|
||
(gnus-set-format 'category-mode)
|
||
(gnus-set-format 'category t)
|
||
(let ((alist gnus-category-alist)
|
||
(buffer-read-only nil))
|
||
(erase-buffer)
|
||
(while alist
|
||
(gnus-category-insert-line (pop alist)))
|
||
(goto-char (point-min))
|
||
(gnus-category-position-point)))
|
||
|
||
(defun gnus-category-name ()
|
||
(or (get-text-property (gnus-point-at-bol) 'gnus-category)
|
||
(error "No category on the current line")))
|
||
|
||
(defun gnus-category-read ()
|
||
"Read the category alist."
|
||
(setq gnus-category-alist
|
||
(or (gnus-agent-read-file
|
||
(nnheader-concat gnus-agent-directory "lib/categories"))
|
||
(list (list 'default 'short nil nil)))))
|
||
|
||
(defun gnus-category-write ()
|
||
"Write the category alist."
|
||
(setq gnus-category-predicate-cache nil
|
||
gnus-category-group-cache nil)
|
||
(nnheader-temp-write (nnheader-concat gnus-agent-directory "lib/categories")
|
||
(prin1 gnus-category-alist (current-buffer))))
|
||
|
||
(defun gnus-category-edit-predicate (category)
|
||
"Edit the predicate for CATEGORY."
|
||
(interactive (list (gnus-category-name)))
|
||
(let ((info (assq category gnus-category-alist)))
|
||
(gnus-edit-form
|
||
(cadr info) (format "Editing the predicate for category %s" category)
|
||
`(lambda (predicate)
|
||
(setf (cadr (assq ',category gnus-category-alist)) predicate)
|
||
(gnus-category-write)
|
||
(gnus-category-list)))))
|
||
|
||
(defun gnus-category-edit-score (category)
|
||
"Edit the score expression for CATEGORY."
|
||
(interactive (list (gnus-category-name)))
|
||
(let ((info (assq category gnus-category-alist)))
|
||
(gnus-edit-form
|
||
(caddr info)
|
||
(format "Editing the score expression for category %s" category)
|
||
`(lambda (groups)
|
||
(setf (caddr (assq ',category gnus-category-alist)) groups)
|
||
(gnus-category-write)
|
||
(gnus-category-list)))))
|
||
|
||
(defun gnus-category-edit-groups (category)
|
||
"Edit the group list for CATEGORY."
|
||
(interactive (list (gnus-category-name)))
|
||
(let ((info (assq category gnus-category-alist)))
|
||
(gnus-edit-form
|
||
(cadddr info) (format "Editing the group list for category %s" category)
|
||
`(lambda (groups)
|
||
(setf (cadddr (assq ',category gnus-category-alist)) groups)
|
||
(gnus-category-write)
|
||
(gnus-category-list)))))
|
||
|
||
(defun gnus-category-kill (category)
|
||
"Kill the current category."
|
||
(interactive (list (gnus-category-name)))
|
||
(let ((info (assq category gnus-category-alist))
|
||
(buffer-read-only nil))
|
||
(gnus-delete-line)
|
||
(gnus-category-write)
|
||
(setq gnus-category-alist (delq info gnus-category-alist))))
|
||
|
||
(defun gnus-category-copy (category to)
|
||
"Copy the current category."
|
||
(interactive (list (gnus-category-name) (intern (read-string "New name: "))))
|
||
(let ((info (assq category gnus-category-alist)))
|
||
(push (list to (gnus-copy-sequence (cadr info))
|
||
(gnus-copy-sequence (caddr info)) nil)
|
||
gnus-category-alist)
|
||
(gnus-category-write)
|
||
(gnus-category-list)))
|
||
|
||
(defun gnus-category-add (category)
|
||
"Create a new category."
|
||
(interactive "SCategory name: ")
|
||
(when (assq category gnus-category-alist)
|
||
(error "Category %s already exists" category))
|
||
(push (list category 'true nil nil)
|
||
gnus-category-alist)
|
||
(gnus-category-write)
|
||
(gnus-category-list))
|
||
|
||
(defun gnus-category-list ()
|
||
"List all categories."
|
||
(interactive)
|
||
(gnus-category-prepare))
|
||
|
||
(defun gnus-category-exit ()
|
||
"Return to the group buffer."
|
||
(interactive)
|
||
(kill-buffer (current-buffer))
|
||
(gnus-configure-windows 'group t))
|
||
|
||
;; To avoid having 8-bit characters in the source file.
|
||
(defvar gnus-category-not (list '! 'not (intern (format "%c" 172))))
|
||
|
||
(defvar gnus-category-predicate-alist
|
||
'((spam . gnus-agent-spam-p)
|
||
(short . gnus-agent-short-p)
|
||
(long . gnus-agent-long-p)
|
||
(low . gnus-agent-low-scored-p)
|
||
(high . gnus-agent-high-scored-p)
|
||
(true . gnus-agent-true)
|
||
(false . gnus-agent-false))
|
||
"Mapping from short score predicate symbols to predicate functions.")
|
||
|
||
(defun gnus-agent-spam-p ()
|
||
"Say whether an article is spam or not."
|
||
(unless gnus-agent-spam-hashtb
|
||
(setq gnus-agent-spam-hashtb (gnus-make-hashtable 1000)))
|
||
(if (not (equal (mail-header-references gnus-headers) ""))
|
||
nil
|
||
(let ((string (gnus-simplify-subject (mail-header-subject gnus-headers))))
|
||
(prog1
|
||
(gnus-gethash string gnus-agent-spam-hashtb)
|
||
(gnus-sethash string t gnus-agent-spam-hashtb)))))
|
||
|
||
(defun gnus-agent-short-p ()
|
||
"Say whether an article is short or not."
|
||
(< (mail-header-lines gnus-headers) gnus-agent-short-article))
|
||
|
||
(defun gnus-agent-long-p ()
|
||
"Say whether an article is long or not."
|
||
(> (mail-header-lines gnus-headers) gnus-agent-long-article))
|
||
|
||
(defun gnus-agent-low-scored-p ()
|
||
"Say whether an article has a low score or not."
|
||
(< gnus-score gnus-agent-low-score))
|
||
|
||
(defun gnus-agent-high-scored-p ()
|
||
"Say whether an article has a high score or not."
|
||
(> gnus-score gnus-agent-high-score))
|
||
|
||
(defun gnus-category-make-function (cat)
|
||
"Make a function from category CAT."
|
||
`(lambda () ,(gnus-category-make-function-1 cat)))
|
||
|
||
(defun gnus-agent-true ()
|
||
"Return t."
|
||
t)
|
||
|
||
(defun gnus-agent-false ()
|
||
"Return nil."
|
||
nil)
|
||
|
||
(defun gnus-category-make-function-1 (cat)
|
||
"Make a function from category CAT."
|
||
(cond
|
||
;; Functions are just returned as is.
|
||
((or (symbolp cat)
|
||
(gnus-functionp cat))
|
||
`(,(or (cdr (assq cat gnus-category-predicate-alist))
|
||
cat)))
|
||
;; More complex category.
|
||
((consp cat)
|
||
`(,(cond
|
||
((memq (car cat) '(& and))
|
||
'and)
|
||
((memq (car cat) '(| or))
|
||
'or)
|
||
((memq (car cat) gnus-category-not)
|
||
'not))
|
||
,@(mapcar 'gnus-category-make-function-1 (cdr cat))))
|
||
(t
|
||
(error "Unknown category type: %s" cat))))
|
||
|
||
(defun gnus-get-predicate (predicate)
|
||
"Return the predicate for CATEGORY."
|
||
(or (cdr (assoc predicate gnus-category-predicate-cache))
|
||
(cdar (push (cons predicate
|
||
(gnus-category-make-function predicate))
|
||
gnus-category-predicate-cache))))
|
||
|
||
(defun gnus-group-category (group)
|
||
"Return the category GROUP belongs to."
|
||
(unless gnus-category-group-cache
|
||
(setq gnus-category-group-cache (gnus-make-hashtable 1000))
|
||
(let ((cs gnus-category-alist)
|
||
groups cat)
|
||
(while (setq cat (pop cs))
|
||
(setq groups (cadddr cat))
|
||
(while groups
|
||
(gnus-sethash (pop groups) cat gnus-category-group-cache)))))
|
||
(or (gnus-gethash group gnus-category-group-cache)
|
||
(assq 'default gnus-category-alist)))
|
||
|
||
(defun gnus-agent-expire ()
|
||
"Expire all old articles."
|
||
(interactive)
|
||
(let ((methods gnus-agent-covered-methods)
|
||
(day (- (gnus-time-to-day (current-time)) gnus-agent-expire-days))
|
||
gnus-command-method sym group articles
|
||
history overview file histories elem art nov-file low info
|
||
unreads marked article)
|
||
(save-excursion
|
||
(setq overview (gnus-get-buffer-create " *expire overview*"))
|
||
(while (setq gnus-command-method (pop methods))
|
||
(let ((expiry-hashtb (gnus-make-hashtable 1023)))
|
||
(gnus-agent-open-history)
|
||
(set-buffer
|
||
(setq gnus-agent-current-history
|
||
(setq history (gnus-agent-history-buffer))))
|
||
(goto-char (point-min))
|
||
(when (> (buffer-size) 1)
|
||
(goto-char (point-min))
|
||
(while (not (eobp))
|
||
(skip-chars-forward "^\t")
|
||
(if (> (read (current-buffer)) day)
|
||
;; New article; we don't expire it.
|
||
(forward-line 1)
|
||
;; Old article. Schedule it for possible nuking.
|
||
(while (not (eolp))
|
||
(setq sym (let ((obarray expiry-hashtb))
|
||
(read (current-buffer))))
|
||
(if (boundp sym)
|
||
(set sym (cons (cons (read (current-buffer)) (point))
|
||
(symbol-value sym)))
|
||
(set sym (list (cons (read (current-buffer)) (point)))))
|
||
(skip-chars-forward " "))
|
||
(forward-line 1)))
|
||
;; We now have all articles that can possibly be expired.
|
||
(mapatoms
|
||
(lambda (sym)
|
||
(setq group (symbol-name sym)
|
||
articles (sort (symbol-value sym) 'car-less-than-car)
|
||
low (car (gnus-active group))
|
||
info (gnus-get-info group)
|
||
unreads (ignore-errors (gnus-list-of-unread-articles group))
|
||
marked (nconc (gnus-uncompress-range
|
||
(cdr (assq 'tick (gnus-info-marks info))))
|
||
(gnus-uncompress-range
|
||
(cdr (assq 'dormant
|
||
(gnus-info-marks info)))))
|
||
nov-file (gnus-agent-article-name ".overview" group))
|
||
(when info
|
||
(gnus-agent-load-alist group)
|
||
(gnus-message 5 "Expiring articles in %s" group)
|
||
(set-buffer overview)
|
||
(erase-buffer)
|
||
(when (file-exists-p nov-file)
|
||
(nnheader-insert-file-contents nov-file))
|
||
(goto-char (point-min))
|
||
(setq article 0)
|
||
(while (setq elem (pop articles))
|
||
(setq article (car elem))
|
||
(when (or (null low)
|
||
(< article low)
|
||
gnus-agent-expire-all
|
||
(and (not (memq article unreads))
|
||
(not (memq article marked))))
|
||
;; Find and nuke the NOV line.
|
||
(while (and (not (eobp))
|
||
(or (not (numberp
|
||
(setq art (read (current-buffer)))))
|
||
(< art article)))
|
||
(if (file-exists-p
|
||
(gnus-agent-article-name
|
||
(number-to-string art) group))
|
||
(forward-line 1)
|
||
;; Remove old NOV lines that have no articles.
|
||
(gnus-delete-line)))
|
||
(if (or (eobp)
|
||
(/= art article))
|
||
(beginning-of-line)
|
||
(gnus-delete-line))
|
||
;; Nuke the article.
|
||
(when (file-exists-p (setq file (gnus-agent-article-name
|
||
(number-to-string article)
|
||
group)))
|
||
(delete-file file))
|
||
;; Schedule the history line for nuking.
|
||
(push (cdr elem) histories)))
|
||
(gnus-make-directory (file-name-directory nov-file))
|
||
(let ((coding-system-for-write
|
||
gnus-agent-file-coding-system))
|
||
(write-region (point-min) (point-max) nov-file nil 'silent))
|
||
;; Delete the unwanted entries in the alist.
|
||
(setq gnus-agent-article-alist
|
||
(sort gnus-agent-article-alist 'car-less-than-car))
|
||
(let* ((alist gnus-agent-article-alist)
|
||
(prev (cons nil alist))
|
||
(first prev)
|
||
expired)
|
||
(while (and alist
|
||
(<= (caar alist) article))
|
||
(if (or (not (cdar alist))
|
||
(not (file-exists-p
|
||
(gnus-agent-article-name
|
||
(number-to-string
|
||
(caar alist))
|
||
group))))
|
||
(progn
|
||
(push (caar alist) expired)
|
||
(setcdr prev (setq alist (cdr alist))))
|
||
(setq prev alist
|
||
alist (cdr alist))))
|
||
(setq gnus-agent-article-alist (cdr first))
|
||
(gnus-agent-save-alist group)
|
||
;; Mark all articles up to the first article
|
||
;; in `gnus-article-alist' as read.
|
||
(when (and info (caar gnus-agent-article-alist))
|
||
(setcar (nthcdr 2 info)
|
||
(gnus-range-add
|
||
(nth 2 info)
|
||
(cons 1 (- (caar gnus-agent-article-alist) 1)))))
|
||
;; Maybe everything has been expired from `gnus-article-alist'
|
||
;; and so the above marking as read could not be conducted,
|
||
;; or there are expired article within the range of the alist.
|
||
(when (and (car expired)
|
||
(or (not (caar gnus-agent-article-alist))
|
||
(> (car expired)
|
||
(caar gnus-agent-article-alist))) )
|
||
(setcar (nthcdr 2 info)
|
||
(gnus-add-to-range
|
||
(nth 2 info)
|
||
(nreverse expired))))
|
||
(gnus-dribble-enter
|
||
(concat "(gnus-group-set-info '"
|
||
(gnus-prin1-to-string info)
|
||
")")))))
|
||
expiry-hashtb)
|
||
(set-buffer history)
|
||
(setq histories (nreverse (sort histories '<)))
|
||
(while histories
|
||
(goto-char (pop histories))
|
||
(gnus-delete-line))
|
||
(gnus-agent-save-history)
|
||
(gnus-agent-close-history))
|
||
(gnus-message 4 "Expiry...done"))))))
|
||
|
||
;;;###autoload
|
||
(defun gnus-agent-batch ()
|
||
(interactive)
|
||
(let ((init-file-user "")
|
||
(gnus-always-read-dribble-file t))
|
||
(gnus))
|
||
(gnus-group-send-drafts)
|
||
(gnus-agent-fetch-session))
|
||
|
||
(provide 'gnus-agent)
|
||
|
||
;;; gnus-agent.el ends here
|