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;;; es-wiki.el -- Elserv interface for emacs-wiki.
;; Copyright (C) 2001 Yuuichi Teranishi <teranisi@gohome.org>
;; Author: Yuuichi Teranishi <teranisi@gohome.org>
;; Keywords: HTTP
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;
;;; Commentary:
;;
;;; Code:
(require 'emacs-wiki)
(require 'elserv)
;; Set action as relative path!
(defvar elserv-wiki-http-edit-form
"
<form method=\"POST\" action=\"changewiki?post\">
<textarea name=\"%PAGE%\" rows=\"25\" cols=\"80\">%TEXT%</textarea>
<center>
<input type=\"submit\" value=\"Submit changes\">
</center>
</form>\n")
(defvar elserv-wiki-http-search-form
"
<form method=\"GET\" action=\"searchwiki?get\">
<center>
Search for: <input type=\"text\" size=\"50\" name=\"q\" value=\"\">
<input type=\"submit\" value=\"Search!\">
</center>
</form>\n")
(defvar elserv-wiki-publishing-footer
"
<!-- Page published by Emacs Wiki ends here -->
<div class=\"navfoot\">
<hr>
<table width=\"100%\" border=\"0\" summary=\"Footer navigation\">
<tr>
<td width=\"33%\" align=\"left\">
<span class=\"footdate\">
<lisp>
(if buffer-file-name
(concat
\"Updated: \"
(format-time-string emacs-wiki-footer-date-format
(nth 5 (file-attributes buffer-file-name)))
(and emacs-wiki-serving-p
(emacs-wiki-editable-p (emacs-wiki-page-name))
(concat
\" / \"
(emacs-wiki-link-href
(concat \"editwiki?\" (emacs-wiki-page-name))
\"Edit\")))))
</lisp>
</span>
</td>
<td width=\"34%\" align=\"center\">
<span class=\"foothome\">
<lisp>
(concat
(and (emacs-wiki-page-file emacs-wiki-home-page t)
(not (emacs-wiki-private-p emacs-wiki-home-page))
(concat
(emacs-wiki-link-href emacs-wiki-home-page \"Home\")
\" / \"))
(emacs-wiki-link-href emacs-wiki-index-page \"Index\")
(and (emacs-wiki-page-file \"ChangeLog\" t)
(not (emacs-wiki-private-p \"ChangeLog\"))
(concat
\" / \"
(emacs-wiki-link-href \"ChangeLog\" \"Changes\"))))
</lisp>
</span>
</td>
<td width=\"33%\" align=\"right\">
<span class=\"footfeed\">
<lisp>
(if emacs-wiki-serving-p
(concat
(emacs-wiki-link-href \"searchwiki?get\" \"Search\")
(and buffer-file-name
(concat
\" / \"
(emacs-wiki-link-href
(concat \"searchwiki?q=\" (emacs-wiki-page-name))
\"Referrers\")))))
</lisp>
</span>
</td>
</tr>
<tr>
<td>Powered by<a href=\"http://www.gohome.org/elserv\"> <lisp>(elserv-version t)</lisp></a></td>
</tr>
</table>
</div>
</body>
</html>\n")
(defun elserv-wiki-interwiki-page ()
(if emacs-wiki-interwiki-names
(concat "- [["
(mapconcat 'car emacs-wiki-interwiki-names "]]\n- [[")
"]]\n")
"No WikiNames"))
(defun elserv-wiki-render-page (result name)
(cond ((string= name emacs-wiki-index-page)
(with-current-buffer (emacs-wiki-generate-index t t)
(emacs-wiki-replace-markup "Wiki Index")
(elserv-set-result-header
result
(list 'content-type "text/html; charset=iso-2022-jp"))
(elserv-set-result-body result (encode-coding-string
(buffer-string)
'iso-2022-jp))
(kill-buffer (current-buffer))))
((string= name "WikiNames")
(with-temp-buffer
(insert (elserv-wiki-interwiki-page))
(emacs-wiki-replace-markup "WikiNames")
(elserv-set-result-header
result (list 'content-type "text/html"))
(elserv-set-result-body result (buffer-string))))
(t
(let ((file (and (not (emacs-wiki-private-p name))
(cdr (assoc name (emacs-wiki-file-alist)))))
(system-time-locale "C")
(inhibit-read-only t))
(if (null file)
(signal 'elserv-file-not-found
(concat "Page not found"
(format "Wiki page %s not found" name)))
(with-temp-buffer
(let ((modified-time (nth 5 (file-attributes file))))
(insert-file-contents-as-binary file)
(decode-coding-region (point-min) (point-max) 'iso-2022-jp)
(setq buffer-file-name name)
(emacs-wiki-replace-markup name)
(set-buffer-modified-p nil)
(elserv-set-result-header
result
(list 'content-type "text/html; charset=iso-2022-jp"
'last-modified (format-time-string "%a, %e %b %Y %T %Z"
modified-time)))
(elserv-set-result-body result
(encode-coding-string
(buffer-string)
'iso-2022-jp)))))))))
(defun elserv-wiki-edit-page (result page-name)
(let ((emacs-wiki-http-edit-form elserv-wiki-http-edit-form))
(if (not (emacs-wiki-editable-p page-name))
(signal 'elserv-forbidden "Editing this Wiki page is not allowed")
(with-temp-buffer
(emacs-wiki-setup-edit-page page-name)
;; this is required because of the : in the name
(elserv-set-result-header
result
(list 'content-type "text/html; charset=iso-2022-jp"))
(elserv-set-result-body result
(encode-coding-string
(buffer-string)
'iso-2022-jp))))))
(defun elserv-wiki-change-page (result request)
(let* ((res (elserv-url-decode (plist-get request 'body)))
(page (caar res))
(text (cdar res))
(len (length text))
(require-final-newline t)
(pos 0) illegal user)
(if (not (emacs-wiki-editable-p page))
(signal 'elserv-forbidden
(format "Editing Wiki page %s is not allowed" page)))
(while (and (null illegal)
(setq pos (string-match "<\\s-*\\([^> \t]+\\)"
text pos)))
(setq pos (match-end 0))
(if (assoc (match-string 1 text) emacs-wiki-dangerous-tags)
(setq illegal (match-string 1 text))))
(if illegal
(signal 'elserv-forbidden
(format "Public use of <%s> tag not allowed"
illegal)))
(emacs-wiki-find-file page)
(if (setq user (file-locked-p buffer-file-name))
(signal 'elserv-forbidden
(format
"The page \"%s\" is currently being edited by %s."
page (if (eq user t) (user-full-name) user))))
(let ((inhibit-read-only t)
(delete-old-versions t))
(erase-buffer)
(insert (if (eq (aref text (1- len)) ?%)
(substring text 0 (1- len))
text))
(goto-char (point-min))
(while (re-search-forward "\r$" nil t)
(replace-match "" t t))
(save-buffer)
(if (/= (file-modes buffer-file-name) ?\666)
(set-file-modes buffer-file-name ?\666))
(kill-buffer (current-buffer)))
(with-temp-buffer
(emacs-wiki-file-alist) ; force re-check
(insert "<redirect url=\"wiki?" page "\" delay=\"3\">")
(insert "Thank you, your changes have been saved to " page)
(insert ". You will be redirected to "
"the new page in a moment.")
(insert "</redirect>")
(emacs-wiki-replace-markup "Change Saved")
(elserv-set-result-header result
'(content-type "text/html"))
(elserv-set-result-body result (buffer-string)))))
(defun elserv-wiki-search-input-page (result)
(let ((emacs-wiki-http-search-form elserv-wiki-http-search-form))
(with-temp-buffer
(insert "<verbatim>" emacs-wiki-http-search-form "</verbatim>")
(emacs-wiki-replace-markup "Search Wiki Pages")
(elserv-set-result-header
result
(list 'content-type "text/html"))
(elserv-set-result-body result (buffer-string)))))
(defun elserv-wiki-search-page (result term)
(let ((compilation-scroll-output nil))
(with-current-buffer (emacs-wiki-grep term)
(emacs-wiki-wikify-search-results term)
(emacs-wiki-replace-markup "Search Results")
(elserv-set-result-header
result
(list 'content-type "text/html;charset=iso-2022-jp"))
(elserv-set-result-body result
(encode-coding-string
(buffer-string) 'iso-2022-jp))
(kill-buffer (current-buffer)))))
(defun elserv-wiki-function (result path ppath request)
(if (string= path "")
(elserv-make-redirect result
(concat "http://" (plist-get request 'host)
(unless (string= ppath "/") ppath)
path "/"))
(let ((emacs-wiki-serving-p t)
(emacs-wiki-publishing-footer elserv-wiki-publishing-footer))
(cond
((string= path "/") ; default page.
(elserv-wiki-render-page result emacs-wiki-default-page))
((string-match "\\`/wiki\\?\\(.+\\)" path)
(elserv-wiki-render-page result (match-string 1 path)))
((string-match "\\`/editwiki\\?\\(.+\\)" path)
(elserv-wiki-edit-page result (match-string 1 path)))
((string-match "\\`/changewiki\\?post" path)
(elserv-wiki-change-page result request))
((string-match "\\`/searchwiki\\?get" path)
(elserv-wiki-search-input-page result))
((string-match "\\`/searchwiki\\?q=\\(.+\\)" path)
(elserv-wiki-search-page result (match-string 1 path)))
(t (signal 'elserv-file-not-found
"Specified Wiki page was not found."))))))
(defun elserv-wiki-publish (process path)
"Publish Wiki service.
PROCESS is the elserv server process.
PATH is the path to publish Wiki content."
(elserv-publish process path :function 'elserv-wiki-function
:description "Emacs Wiki."))
(defun elserv-wiki-start (&optional port)
"Start a Wiki Server."
(interactive (if current-prefix-arg
(list (string-to-number (read-from-minibuffer "Port: ")))))
(elserv-publish (elserv-start port) "/" :function 'elserv-wiki-function))
(require 'product)
(product-provide (provide 'es-wiki) (require 'elserv))
;;; es-wiki.el ends here
|