(require 'nnheader)
(require 'nntp)
(require 'nnoo)
(eval-when-compile (require 'cl))
(nnoo-declare nnspool)
(defvoo nnspool-inews-program news-inews-program
"Program to post news.
This is most commonly `inews' or `injnews'.")
(defvoo nnspool-inews-switches '("-h" "-S")
"Switches for nnspool-request-post to pass to `inews' for posting news.
If you are using Cnews, you probably should set this variable to nil.")
(defvoo nnspool-spool-directory
(file-name-as-directory (if (boundp 'news-directory)
(symbol-value 'news-directory)
news-path))
"Local news spool directory.")
(defvoo nnspool-nov-directory (concat nnspool-spool-directory "over.view/")
"Local news nov directory.")
(defvoo nnspool-lib-dir
(if (file-exists-p "/usr/lib/news/active")
"/usr/lib/news/"
"/var/lib/news/")
"Where the local news library files are stored.")
(defvoo nnspool-active-file (concat nnspool-lib-dir "active")
"Local news active file.")
(defvoo nnspool-newsgroups-file (concat nnspool-lib-dir "newsgroups")
"Local news newsgroups file.")
(defvoo nnspool-distributions-file (concat nnspool-lib-dir "distribs.pat")
"Local news distributions file.")
(defvoo nnspool-history-file (concat nnspool-lib-dir "history")
"Local news history file.")
(defvoo nnspool-active-times-file (concat nnspool-lib-dir "active.times")
"Local news active date file.")
(defvoo nnspool-large-newsgroup 50
"The number of articles which indicates a large newsgroup.
If the number of articles is greater than the value, verbose
messages will be shown to indicate the current status.")
(defvoo nnspool-nov-is-evil nil
"Non-nil means that nnspool will never return NOV lines instead of headers.")
(defconst nnspool-sift-nov-with-sed nil
"If non-nil, use sed to get the relevant portion from the overview file.
If nil, nnspool will load the entire file into a buffer and process it
there.")
(defvoo nnspool-rejected-article-hook nil
"*A hook that will be run when an article has been rejected by the server.")
(defvoo nnspool-file-coding-system nnheader-file-coding-system
"Coding system for nnspool.")
(defconst nnspool-version "nnspool 2.0"
"Version numbers of this version of NNSPOOL.")
(defvoo nnspool-current-directory nil
"Current news group directory.")
(defvoo nnspool-current-group nil)
(defvoo nnspool-status-string "")
(nnoo-define-basics nnspool)
(deffoo nnspool-retrieve-headers (articles &optional group server fetch-old)
"Retrieve the headers of ARTICLES."
(save-excursion
(set-buffer nntp-server-buffer)
(erase-buffer)
(when (nnspool-possibly-change-directory group)
(let* ((number (length articles))
(count 0)
(default-directory nnspool-current-directory)
(do-message (and (numberp nnspool-large-newsgroup)
(> number nnspool-large-newsgroup)))
(nnheader-file-coding-system nnspool-file-coding-system)
file beg article ag)
(if (and (numberp (car articles))
(nnspool-retrieve-headers-with-nov articles fetch-old))
'nov
(while (setq article (pop articles))
(if (stringp article)
(setq ag (nnspool-find-id article)
file (and ag (nnspool-article-pathname
(car ag) (cdr ag)))
article (cdr ag))
(setq file (int-to-string article)))
(when (and file
(file-exists-p file))
(insert "221 ")
(princ article (current-buffer))
(insert " Article retrieved.\n")
(setq beg (point))
(inline (nnheader-insert-head file))
(goto-char beg)
(if (search-forward "\n\n" nil t)
(progn
(forward-char -1)
(insert ".\n"))
(goto-char (point-max))
(if (bolp)
(insert ".\n")
(insert "\n.\n")))
(delete-region (point) (point-max)))
(and do-message
(zerop (% (incf count) 20))
(nnheader-message 5 "nnspool: Receiving headers... %d%%"
(/ (* count 100) number))))
(when do-message
(nnheader-message 5 "nnspool: Receiving headers...done"))
(nnheader-fold-continuation-lines)
'headers)))))
(deffoo nnspool-open-server (server &optional defs)
(nnoo-change-server 'nnspool server defs)
(cond
((not (file-exists-p nnspool-spool-directory))
(nnspool-close-server)
(nnheader-report 'nnspool "Spool directory doesn't exist: %s"
nnspool-spool-directory))
((not (file-directory-p
(directory-file-name
(file-truename nnspool-spool-directory))))
(nnspool-close-server)
(nnheader-report 'nnspool "Not a directory: %s" nnspool-spool-directory))
((not (file-exists-p nnspool-active-file))
(nnheader-report 'nnspool "The active file doesn't exist: %s"
nnspool-active-file))
(t
(nnheader-report 'nnspool "Opened server %s using directory %s"
server nnspool-spool-directory)
t)))
(deffoo nnspool-request-article (id &optional group server buffer)
"Select article by message ID (or number)."
(nnspool-possibly-change-directory group)
(let ((nntp-server-buffer (or buffer nntp-server-buffer))
file ag)
(if (stringp id)
(when (setq ag (nnspool-find-id id))
(setq file (nnspool-article-pathname (car ag) (cdr ag))))
(setq file (nnspool-article-pathname nnspool-current-group id)))
(and file
(file-exists-p file)
(not (file-directory-p file))
(save-excursion (nnspool-find-file file))
(if (numberp id)
(cons nnspool-current-group id)
ag))))
(deffoo nnspool-request-body (id &optional group server)
"Select article body by message ID (or number)."
(nnspool-possibly-change-directory group)
(let ((res (nnspool-request-article id)))
(when res
(save-excursion
(set-buffer nntp-server-buffer)
(goto-char (point-min))
(when (search-forward "\n\n" nil t)
(delete-region (point-min) (point)))
res))))
(deffoo nnspool-request-head (id &optional group server)
"Select article head by message ID (or number)."
(nnspool-possibly-change-directory group)
(let ((res (nnspool-request-article id)))
(when res
(save-excursion
(set-buffer nntp-server-buffer)
(goto-char (point-min))
(when (search-forward "\n\n" nil t)
(delete-region (1- (point)) (point-max)))
(nnheader-fold-continuation-lines)))
res))
(deffoo nnspool-request-group (group &optional server dont-check)
"Select news GROUP."
(let ((pathname (nnspool-article-pathname group))
dir)
(if (not (file-directory-p pathname))
(nnheader-report
'nnspool "Invalid group name (no such directory): %s" group)
(setq nnspool-current-directory pathname)
(nnheader-report 'nnspool "Selected group %s" group)
(if dont-check
(progn
(nnheader-report 'nnspool "Selected group %s" group)
t)
(when (setq dir (directory-files pathname nil "^[0-9]+$" t))
(setq dir
(sort (mapcar (lambda (name) (string-to-number name)) dir) '<)))
(if dir
(nnheader-insert
"211 %d %d %d %s\n" (length dir) (car dir)
(progn (while (cdr dir) (setq dir (cdr dir))) (car dir))
group)
(nnheader-report 'nnspool "Empty group %s" group)
(nnheader-insert "211 0 0 0 %s\n" group))))))
(deffoo nnspool-request-type (group &optional article)
'news)
(deffoo nnspool-close-group (group &optional server)
t)
(deffoo nnspool-request-list (&optional server)
"List active newsgroups."
(save-excursion
(or (nnspool-find-file nnspool-active-file)
(nnheader-report 'nnspool (nnheader-file-error nnspool-active-file)))))
(deffoo nnspool-request-list-newsgroups (&optional server)
"List newsgroups (defined in NNTP2)."
(save-excursion
(or (nnspool-find-file nnspool-newsgroups-file)
(nnheader-report 'nnspool (nnheader-file-error
nnspool-newsgroups-file)))))
(deffoo nnspool-request-list-distributions (&optional server)
"List distributions (defined in NNTP2)."
(save-excursion
(or (nnspool-find-file nnspool-distributions-file)
(nnheader-report 'nnspool (nnheader-file-error
nnspool-distributions-file)))))
(deffoo nnspool-request-newgroups (date &optional server)
"List groups created after DATE."
(if (nnspool-find-file nnspool-active-times-file)
(save-excursion
(goto-char (point-max))
(while (and (not (looking-at
"\\([^ ]+\\) +\\([0-9]+\\)[0-9][0-9][0-9] "))
(zerop (forward-line -1))))
(let ((seconds (time-to-seconds (date-to-time date)))
groups)
(while (and (looking-at "\\([^ ]+\\) +[0-9]+ ")
(progn
(goto-char (1- (match-end 0)))
(insert ".0")
(> (progn
(goto-char (match-end 1))
(read (current-buffer)))
seconds))
(push (buffer-substring
(match-beginning 1) (match-end 1))
groups)
(zerop (forward-line -1))))
(erase-buffer)
(while groups
(insert (car groups) " 0 0 y\n")
(setq groups (cdr groups))))
t)
nil))
(deffoo nnspool-request-post (&optional server)
"Post a new news in current buffer."
(save-excursion
(let* ((process-connection-type nil) (inews-buffer (generate-new-buffer " *nnspool post*"))
(proc
(condition-case err
(apply 'start-process "*nnspool inews*" inews-buffer
nnspool-inews-program nnspool-inews-switches)
(error
(nnheader-report 'nnspool "inews error: %S" err)))))
(if (not proc)
()
(nnheader-report 'nnspool "")
(set-process-sentinel proc 'nnspool-inews-sentinel)
(mm-with-unibyte-current-buffer
(process-send-region proc (point-min) (point-max)))
(ignore-errors
(process-send-eof proc))
t))))
(defun nnspool-inews-sentinel (proc status)
(save-excursion
(set-buffer (process-buffer proc))
(goto-char (point-min))
(if (or (zerop (buffer-size))
(search-forward "spooled" nil t))
(kill-buffer (current-buffer))
(while (re-search-forward "[ \t\n]+" nil t)
(replace-match " " t t))
(nnheader-report 'nnspool "%s" (buffer-string))
(nnheader-message 5 "nnspool: %s" nnspool-status-string)
(ding)
(run-hooks 'nnspool-rejected-article-hook))))
(defun nnspool-retrieve-headers-with-nov (articles &optional fetch-old)
(if (or gnus-nov-is-evil nnspool-nov-is-evil)
nil
(let ((nov (nnheader-group-pathname
nnspool-current-group nnspool-nov-directory ".overview"))
(arts articles)
(nnheader-file-coding-system nnspool-file-coding-system)
last)
(if (not (file-exists-p nov))
()
(save-excursion
(set-buffer nntp-server-buffer)
(erase-buffer)
(if nnspool-sift-nov-with-sed
(nnspool-sift-nov-with-sed articles nov)
(nnheader-insert-file-contents nov)
(if (and fetch-old
(not (numberp fetch-old)))
t (ignore-errors
(nnheader-nov-delete-outside-range
(if fetch-old (max 1 (- (car articles) fetch-old))
(car articles))
(car (last articles)))
(unless (zerop (buffer-size))
(forward-line -1)
(setq last (read (current-buffer)))
(if (= last (car articles))
t
(while (and arts
(<= last (car arts)))
(pop arts))
(while arts
(nnspool-insert-nov-head (pop arts)))
t))))))))))
(defun nnspool-insert-nov-head (article)
"Read the head of ARTICLE, convert to NOV headers, and insert."
(save-excursion
(let ((cur (current-buffer))
buf)
(setq buf (nnheader-set-temp-buffer " *nnspool head*"))
(when (nnheader-insert-head
(nnspool-article-pathname nnspool-current-group article))
(nnheader-insert-article-line article)
(let ((headers (nnheader-parse-head)))
(set-buffer cur)
(goto-char (point-max))
(nnheader-insert-nov headers)))
(kill-buffer buf))))
(defun nnspool-sift-nov-with-sed (articles file)
(let ((first (car articles))
(last (progn (while (cdr articles) (setq articles (cdr articles)))
(car articles))))
(call-process "awk" nil t nil
(format "BEGIN {firstmsg=%d; lastmsg=%d;}\n $1 >= firstmsg && $1 <= lastmsg {print;}"
(1- first) (1+ last))
file)))
(defun nnspool-find-id (id)
(save-excursion
(set-buffer (get-buffer-create " *nnspool work*"))
(erase-buffer)
(ignore-errors
(call-process "grep" nil t nil (regexp-quote id) nnspool-history-file))
(goto-char (point-min))
(prog1
(when (looking-at "<[^>]+>[ \t]+[-0-9~]+[ \t]+\\([^ /\t\n]+\\)/\\([0-9]+\\)[ \t\n]")
(cons (match-string 1) (string-to-number (match-string 2))))
(kill-buffer (current-buffer)))))
(defun nnspool-find-file (file)
"Insert FILE in server buffer safely."
(set-buffer nntp-server-buffer)
(erase-buffer)
(condition-case ()
(let ((coding-system-for-read nnspool-file-coding-system))
(mm-insert-file-contents file)
t)
(file-error nil)))
(defun nnspool-possibly-change-directory (group)
(if (not group)
t
(let ((pathname (nnspool-article-pathname group)))
(if (file-directory-p pathname)
(setq nnspool-current-directory pathname
nnspool-current-group group)
(nnheader-report 'nnspool "No such newsgroup: %s" group)))))
(defun nnspool-article-pathname (group &optional article)
"Find the file name for GROUP."
(nnheader-group-pathname group nnspool-spool-directory article))
(provide 'nnspool)