X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=lisp%2Fmm-view.el;h=405b304b47fcb2100d3aed59aaba6ef62f3d4cd7;hb=c66d21ab83593b0420982c65f3b87c52889ad7f1;hp=192b94fbab1a54485a90b17e08fd3afc6cebea0f;hpb=ef8176426ccbbef9c762cd81a43749e1e575f1da;p=elisp%2Fgnus.git- diff --git a/lisp/mm-view.el b/lisp/mm-view.el index 192b94f..405b304 100644 --- a/lisp/mm-view.el +++ b/lisp/mm-view.el @@ -25,7 +25,7 @@ (eval-when-compile (require 'cl)) (require 'mail-parse) -(require 'mailcap) +(require 'gnus-mailcap) (require 'mm-bodies) (require 'mm-decode) @@ -34,9 +34,34 @@ (autoload 'vcard-parse-string "vcard") (autoload 'vcard-format-string "vcard") (autoload 'fill-flowed "flow-fill") + (autoload 'html2text "html2text") (unless (fboundp 'diff-mode) (autoload 'diff-mode "diff-mode" "" t nil))) +(defvar mm-text-html-renderer-alist + '((w3 . mm-inline-text-html-render-with-w3) + (w3m . mm-inline-text-html-render-with-w3m) + (links mm-inline-render-with-file + mm-links-remove-leading-blank + "links" "-dump" file) + (lynx mm-inline-render-with-stdin nil + "lynx" "-dump" "-force_html" "-stdin") + (html2text mm-inline-render-with-function html2text)) + "The attributes of renderer types for text/html.") + +(defvar mm-text-html-washer-alist + '((w3 . gnus-article-wash-html-with-w3) + (w3m . gnus-article-wash-html-with-w3m) + (links mm-inline-wash-with-file + mm-links-remove-leading-blank + "links" "-dump" file) + (lynx mm-inline-wash-with-stdin nil + "lynx" "-dump" "-force_html" "-stdin") + (html2text html2text)) + "The attributes of washer types for text/html.") + +;;; Internal variables. + ;;; ;;; Functions for displaying various formats inline ;;; @@ -81,124 +106,315 @@ (require 'url-vars) (setq mm-w3-setup t))) -(defun mm-inline-text (handle) - (let ((type (mm-handle-media-subtype handle)) - text buffer-read-only) - (cond - ((equal type "html") - (mm-setup-w3) - (setq text (mm-get-part handle)) - (let ((b (point)) - (url-standalone-mode t) - (w3-honor-stylesheets nil) - (w3-delay-image-loads t) - (url-current-object - (url-generic-parse-url (format "cid:%s" (mm-handle-id handle)))) - (width (window-width)) - (charset (mail-content-type-get - (mm-handle-type handle) 'charset))) - (save-excursion - (insert text) +(defun mm-inline-text-html-render-with-w3 (handle) + (mm-setup-w3) + (let ((text (mm-get-part handle)) + (b (point)) + (url-standalone-mode t) + (url-gateway-unplugged t) + (w3-honor-stylesheets nil) + (url-current-object + (url-generic-parse-url (format "cid:%s" (mm-handle-id handle)))) + (width (window-width)) + (charset (mail-content-type-get + (mm-handle-type handle) 'charset))) + (save-excursion + (insert text) + (save-restriction + (narrow-to-region b (point)) + (goto-char (point-min)) + (if (or (and (boundp 'w3-meta-content-type-charset-regexp) + (re-search-forward + w3-meta-content-type-charset-regexp nil t)) + (and (boundp 'w3-meta-charset-content-type-regexp) + (re-search-forward + w3-meta-charset-content-type-regexp nil t))) + (setq charset + (or (let ((bsubstr (buffer-substring-no-properties + (match-beginning 2) + (match-end 2)))) + (if (fboundp 'w3-coding-system-for-mime-charset) + (w3-coding-system-for-mime-charset bsubstr) + (mm-charset-to-coding-system bsubstr))) + charset))) + (delete-region (point-min) (point-max)) + (insert (mm-decode-string text charset)) + (save-window-excursion (save-restriction - (narrow-to-region b (point)) - (goto-char (point-min)) - (if (or (and (boundp 'w3-meta-content-type-charset-regexp) - (re-search-forward - w3-meta-content-type-charset-regexp nil t)) - (and (boundp 'w3-meta-charset-content-type-regexp) - (re-search-forward - w3-meta-charset-content-type-regexp nil t))) - (setq charset - (or (let ((bsubstr (buffer-substring-no-properties - (match-beginning 2) - (match-end 2)))) - (if (fboundp 'w3-coding-system-for-mime-charset) - (w3-coding-system-for-mime-charset bsubstr) - (mm-charset-to-coding-system bsubstr))) - charset))) - (delete-region (point-min) (point-max)) - (insert (mm-decode-string text charset)) - (save-window-excursion - (save-restriction - (let ((w3-strict-width width) - ;; Don't let w3 set the global version of - ;; this variable. - (fill-column fill-column) - (w3-honor-stylesheets nil) - (w3-delay-image-loads t) - (url-standalone-mode t)) - (condition-case var - (w3-region (point-min) (point-max)) - (error - (delete-region (point-min) (point-max)) - (let ((b (point)) - (charset (mail-content-type-get - (mm-handle-type handle) 'charset))) - (if (or (eq charset 'gnus-decoded) - (eq mail-parse-charset 'gnus-decoded)) - (save-restriction - (narrow-to-region (point) (point)) - (mm-insert-part handle) - (goto-char (point-max))) - (insert (mm-decode-string (mm-get-part handle) - charset)))) - (message - "Error while rendering html; showing as text/plain")))))) - (mm-handle-set-undisplayer - handle - `(lambda () - (let (buffer-read-only) - (if (functionp 'remove-specifier) - (mapcar (lambda (prop) - (remove-specifier - (face-property 'default prop) - (current-buffer))) - '(background background-pixmap foreground))) - (delete-region ,(point-min-marker) - ,(point-max-marker))))))))) - ((equal type "x-vcard") - (mm-insert-inline + (let ((w3-strict-width width) + ;; Don't let w3 set the global version of + ;; this variable. + (fill-column fill-column)) + (if (or debug-on-error debug-on-quit) + (w3-region (point-min) (point-max)) + (condition-case () + (w3-region (point-min) (point-max)) + (error + (delete-region (point-min) (point-max)) + (let ((b (point)) + (charset (mail-content-type-get + (mm-handle-type handle) 'charset))) + (if (or (eq charset 'gnus-decoded) + (eq mail-parse-charset 'gnus-decoded)) + (save-restriction + (narrow-to-region (point) (point)) + (mm-insert-part handle) + (goto-char (point-max))) + (insert (mm-decode-string (mm-get-part handle) + charset)))) + (message + "Error while rendering html; showing as text/plain"))))))) + (mm-handle-set-undisplayer + handle + `(lambda () + (let (buffer-read-only) + (if (functionp 'remove-specifier) + (mapcar (lambda (prop) + (remove-specifier + (face-property 'default prop) + (current-buffer))) + '(background background-pixmap foreground))) + (delete-region ,(point-min-marker) + ,(point-max-marker))))))))) + +(defvar mm-w3m-mode-map nil + "Local keymap for inlined text/html part rendered by emacs-w3m. It will +be different from `w3m-mode-map' to use in the article buffer.") + +(defvar mm-w3m-mode-command-alist + '((backward-char) + (describe-mode) + (forward-char) + (goto-line) + (next-line) + (previous-line) + (w3m-antenna) + (w3m-antenna-add-current-url) + (w3m-bookmark-add-current-url) + (w3m-bookmark-add-this-url) + (w3m-bookmark-view) + (w3m-close-window) + (w3m-copy-buffer) + (w3m-delete-buffer) + (w3m-dtree) + (w3m-edit-current-url) + (w3m-edit-this-url) + (w3m-gohome) + (w3m-goto-url) + (w3m-goto-url-new-session) + (w3m-history) + (w3m-history-restore-position) + (w3m-history-store-position) + (w3m-namazu) + (w3m-next-buffer) + (w3m-previous-buffer) + (w3m-quit) + (w3m-redisplay-with-charset) + (w3m-reload-this-page) + (w3m-scroll-down-or-previous-url) + (w3m-scroll-up-or-next-url) + (w3m-search) + (w3m-select-buffer) + (w3m-switch-buffer) + (w3m-view-header) + (w3m-view-parent-page) + (w3m-view-previous-page) + (w3m-view-source) + (w3m-weather)) + "Alist of commands to use for emacs-w3m in the article buffer. Each +element looks like (FROM-COMMAND . TO-COMMAND); FROM-COMMAND should be +registered in `w3m-mode-map' which will be substituted by TO-COMMAND +in `mm-w3m-mode-map'. If TO-COMMAND is nil, an article command key +will not be substituted.") + +(defvar mm-w3m-mode-dont-bind-keys (list [up] [right] [left] [down]) + "List of keys which should not be bound for the emacs-w3m commands.") + +(defvar mm-w3m-setup nil + "Whether gnus-article-mode has been setup to use emacs-w3m.") + +(defun mm-setup-w3m () + "Setup gnus-article-mode to use emacs-w3m." + (unless mm-w3m-setup + (require 'w3m) + (unless mm-w3m-mode-map + (setq mm-w3m-mode-map (copy-keymap w3m-mode-map)) + (dolist (def mm-w3m-mode-command-alist) + (condition-case nil + (substitute-key-definition (car def) (cdr def) mm-w3m-mode-map) + (error))) + (dolist (key mm-w3m-mode-dont-bind-keys) + (condition-case nil + (define-key mm-w3m-mode-map key nil) + (error)))) + (unless (assq 'gnus-article-mode w3m-cid-retrieve-function-alist) + (push (cons 'gnus-article-mode 'mm-w3m-cid-retrieve) + w3m-cid-retrieve-function-alist)) + (setq mm-w3m-setup t))) + +(defun mm-w3m-cid-retrieve (url &rest args) + "Insert a content pointed by URL if it has the cid: scheme." + (when (string-match "\\`cid:" url) + (setq url (concat "<" (substring url (match-end 0)) ">")) + (catch 'found-handle + (dolist (handle (with-current-buffer w3m-current-buffer + gnus-article-mime-handles)) + (when (and (listp handle) + (equal url (mm-handle-id handle))) + (mm-insert-part handle) + (throw 'found-handle (mm-handle-media-type handle))))))) + +(defun mm-inline-text-html-render-with-w3m (handle) + "Render a text/html part using emacs-w3m." + (mm-setup-w3m) + (let ((text (mm-get-part handle)) + (b (point)) + (charset (mail-content-type-get (mm-handle-type handle) 'charset))) + (save-excursion + (insert text) + (save-restriction + (narrow-to-region b (point)) + (goto-char (point-min)) + (when (re-search-forward w3m-meta-content-type-charset-regexp nil t) + (setq charset (or (w3m-charset-to-coding-system (match-string 2)) + charset))) + (when charset + (delete-region (point-min) (point-max)) + (insert (mm-decode-string text charset))) + (let ((w3m-safe-url-regexp (if mm-inline-text-html-with-images + nil + "\\`cid:")) + (w3m-display-inline-images mm-inline-text-html-with-images) + w3m-force-redisplay) + (w3m-region (point-min) (point-max))) + (when mm-inline-text-html-with-w3m-keymap + (add-text-properties + (point-min) (point-max) + (append '(mm-inline-text-html-with-w3m t) + (gnus-local-map-property mm-w3m-mode-map))))) + (mm-handle-set-undisplayer handle - (concat "\n-- \n" - (ignore-errors - (if (fboundp 'vcard-pretty-print) - (vcard-pretty-print (mm-get-part handle)) - (vcard-format-string - (vcard-parse-string (mm-get-part handle) - 'vcard-standard-filter))))))) + `(lambda () + (let (buffer-read-only) + (if (functionp 'remove-specifier) + (mapcar (lambda (prop) + (remove-specifier + (face-property 'default prop) + (current-buffer))) + '(background background-pixmap foreground))) + (delete-region ,(point-min-marker) + ,(point-max-marker)))))))) + +(defun mm-links-remove-leading-blank () + ;; Delete the annoying three spaces preceding each line of links + ;; output. + (goto-char (point-min)) + (while (re-search-forward "^ " nil t) + (delete-region (match-beginning 0) (match-end 0)))) + +(defun mm-inline-wash-with-file (post-func cmd &rest args) + (let ((file (mm-make-temp-file + (expand-file-name "mm" mm-tmp-directory)))) + (let ((coding-system-for-write 'binary)) + (write-region (point-min) (point-max) file nil 'silent)) + (delete-region (point-min) (point-max)) + (unwind-protect + (apply 'call-process cmd nil t nil (mapcar 'eval args)) + (delete-file file)) + (and post-func (funcall post-func)))) + +(defun mm-inline-wash-with-stdin (post-func cmd &rest args) + (let ((coding-system-for-write 'binary)) + (apply 'call-process-region (point-min) (point-max) + cmd t t nil args)) + (and post-func (funcall post-func))) + +(defun mm-inline-render-with-file (handle post-func cmd &rest args) + (let ((source (mm-get-part handle))) + (mm-insert-inline + handle + (mm-with-unibyte-buffer + (insert source) + (apply 'mm-inline-wash-with-file post-func cmd args) + (buffer-string))))) + +(defun mm-inline-render-with-stdin (handle post-func cmd &rest args) + (let ((source (mm-get-part handle))) + (mm-insert-inline + handle + (mm-with-unibyte-buffer + (insert source) + (apply 'mm-inline-wash-with-stdin post-func cmd args) + (buffer-string))))) + +(defun mm-inline-render-with-function (handle func &rest args) + (let ((source (mm-get-part handle))) + (mm-insert-inline + handle + (mm-with-unibyte-buffer + (insert source) + (apply func args) + (buffer-string))))) + +(defun mm-inline-text-html (handle) + (let* ((func (or mm-inline-text-html-renderer mm-text-html-renderer)) + (entry (assq func mm-text-html-renderer-alist)) + buffer-read-only) + (if entry + (setq func (cdr entry))) + (cond + ((gnus-functionp func) + (funcall func handle)) (t - (let ((b (point)) - (charset (mail-content-type-get - (mm-handle-type handle) 'charset))) - (if (or (eq charset 'gnus-decoded) - ;; This is probably not entirely correct, but - ;; makes rfc822 parts with embedded multiparts work. - (eq mail-parse-charset 'gnus-decoded)) - (save-restriction - (narrow-to-region (point) (point)) - (mm-insert-part handle) - (goto-char (point-max))) - (insert (mm-decode-string (mm-get-part handle) charset))) - (when (and (equal type "plain") - (equal (cdr (assoc 'format (mm-handle-type handle))) - "flowed")) - (save-restriction - (narrow-to-region b (point)) - (goto-char b) - (fill-flowed) - (goto-char (point-max)))) + (apply (car func) handle (cdr func)))))) + +(defun mm-inline-text-vcard (handle) + (let (buffer-read-only) + (mm-insert-inline + handle + (concat "\n-- \n" + (ignore-errors + (if (fboundp 'vcard-pretty-print) + (vcard-pretty-print (mm-get-part handle)) + (vcard-format-string + (vcard-parse-string (mm-get-part handle) + 'vcard-standard-filter)))))))) + +(defun mm-inline-text (handle) + (let ((b (point)) + (type (mm-handle-media-subtype handle)) + (charset (mail-content-type-get + (mm-handle-type handle) 'charset)) + buffer-read-only) + (if (or (eq charset 'gnus-decoded) + ;; This is probably not entirely correct, but + ;; makes rfc822 parts with embedded multiparts work. + (eq mail-parse-charset 'gnus-decoded)) (save-restriction - (narrow-to-region b (point)) - (set-text-properties (point-min) (point-max) nil) - (when (or (equal type "enriched") - (equal type "richtext")) - (enriched-decode (point-min) (point-max))) - (mm-handle-set-undisplayer - handle - `(lambda () - (let (buffer-read-only) - (delete-region ,(point-min-marker) - ,(point-max-marker))))))))))) + (narrow-to-region (point) (point)) + (mm-insert-part handle) + (goto-char (point-max))) + (insert (mm-decode-string (mm-get-part handle) charset))) + (when (and (equal type "plain") + (equal (cdr (assoc 'format (mm-handle-type handle))) + "flowed")) + (save-restriction + (narrow-to-region b (point)) + (goto-char b) + (fill-flowed) + (goto-char (point-max)))) + (save-restriction + (narrow-to-region b (point)) + (set-text-properties (point-min) (point-max) nil) + (when (or (equal type "enriched") + (equal type "richtext")) + (enriched-decode (point-min) (point-max))) + (mm-handle-set-undisplayer + handle + `(lambda () + (let (buffer-read-only) + (delete-region ,(point-min-marker) + ,(point-max-marker)))))))) (defun mm-insert-inline (handle text) "Insert TEXT inline from HANDLE." @@ -220,8 +436,8 @@ (defun mm-w3-prepare-buffer () (require 'w3) (let ((url-standalone-mode t) - (w3-honor-stylesheets nil) - (w3-delay-image-loads t)) + (url-gateway-unplugged t) + (w3-honor-stylesheets nil)) (w3-prepare-buffer))) (defun mm-view-message () @@ -358,8 +574,25 @@ (defun mm-view-pkcs7 (handle) (case (mm-view-pkcs7-get-type handle) (enveloped (mm-view-pkcs7-decrypt handle)) + (signed (mm-view-pkcs7-verify handle)) (otherwise (error "Unknown or unimplemented PKCS#7 type")))) +(defun mm-view-pkcs7-verify (handle) + ;; A bogus implementation of PKCS#7. FIXME:: + (mm-insert-part handle) + (goto-char (point-min)) + (if (search-forward "Content-Type: " nil t) + (delete-region (point-min) (match-beginning 0))) + (goto-char (point-max)) + (if (re-search-backward "--\r?\n?" nil t) + (delete-region (match-end 0) (point-max))) + (goto-char (point-min)) + (while (search-forward "\r\n" nil t) + (replace-match "\n")) + (message "Verify signed PKCS#7 message is unimplemented.") + (sit-for 1) + t) + (defun mm-view-pkcs7-decrypt (handle) (insert-buffer (mm-handle-buffer handle)) (goto-char (point-min)) @@ -370,10 +603,15 @@ (if (= (length smime-keys) 1) (cadar smime-keys) (smime-get-key-by-email - (completing-read "Decrypt this part with which key? " - smime-keys nil nil - (and (listp (car-safe smime-keys)) - (caar smime-keys))))))) + (completing-read + (concat "Decipher using which key? " + (if smime-keys (concat "(default " (caar smime-keys) ") ") + "")) + smime-keys nil nil nil nil (car-safe (car-safe smime-keys)))))) + (goto-char (point-min)) + (while (search-forward "\r\n" nil t) + (replace-match "\n")) + (goto-char (point-min))) (provide 'mm-view)