X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;f=mime.el;h=9dc2fcc5b74b6404fa5f1bf55b279141a867cbd5;hb=6260b782ec94886678bc08ecf41d7fa91fa6c9c5;hp=e6d0fb9a64a6e6bdb14d85fef757711d97afce7d;hpb=bc080c5254c93bfa357d9026e8732fdff451e966;p=elisp%2Fflim.git diff --git a/mime.el b/mime.el index e6d0fb9..9dc2fcc 100644 --- a/mime.el +++ b/mime.el @@ -1,8 +1,8 @@ ;;; mime.el --- MIME library module -;; Copyright (C) 1998 Free Software Foundation, Inc. +;; Copyright (C) 1998,1999,2000,2001,2003 Free Software Foundation, Inc. -;; Author: MORIOKA Tomohiko +;; Author: MORIOKA Tomohiko ;; Keywords: MIME, multimedia, mail, news ;; This file is part of FLIM (Faithful Library about Internet Message). @@ -19,8 +19,8 @@ ;; 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. +;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, +;; Boston, MA 02110-1301, USA. ;;; Code: @@ -29,11 +29,12 @@ (require 'mime-def) (require 'eword-decode) -(autoload 'eword-encode-field "eword-encode" - "Encode header field STRING, and return the result.") -(autoload 'eword-encode-header "eword-encode" - "Encode header fields to network representation, such as MIME encoded-word.") +(eval-when-compile (require 'mmgeneric)) + +(eval-and-compile +(autoload 'mime-encode-header-in-buffer "eword-encode" + "Encode header fields to network representation, such as MIME encoded-word.") (autoload 'mime-parse-Content-Type "mime-parse" "Parse STRING as field-body of Content-Type field.") @@ -53,76 +54,57 @@ and return parsed it.") "Read field-body of Content-Transfer-Encoding field from current-buffer, and return it.") -(autoload 'mime-parse-message "mime-parse" - "Parse current-buffer as a MIME message.") +(autoload 'mime-parse-msg-id "mime-parse" + "Parse TOKENS as msg-id of Content-Id or Message-Id field.") + +(autoload 'mime-uri-parse-cid "mime-parse" + "Parse STRING as cid URI.") (autoload 'mime-parse-buffer "mime-parse" "Parse BUFFER as a MIME message.") +) + +(autoload 'mime-encode-field-body "eword-encode" + "Encode FIELD-BODY as FIELD-NAME, and return the result.") + ;;; @ Entity Representation and Implementation ;;; -(defvar mime-entity-implementation-alist nil) - -(defsubst mime-find-function (service type) - (let ((imps (cdr (assq type mime-entity-implementation-alist)))) - (if imps - (let ((func (cdr (assq service imps)))) - (unless func - (setq func (intern (format "mm%s-%s" type service))) - (set-alist 'mime-entity-implementation-alist - type (put-alist service func imps)) - ) - func) - (let ((prefix (format "mm%s" type))) - (require (intern prefix)) - (let ((func (intern (format "%s-%s" prefix service)))) - (set-alist 'mime-entity-implementation-alist - type - (list (cons service func))) - func))))) - -(defsubst mime-entity-function (entity service) - (mime-find-function service - (mime-entity-representation-type-internal entity))) - -(defsubst mime-entity-send (entity service &rest args) - (apply (mime-find-function - service (mime-entity-representation-type-internal entity)) - entity - args)) +(defmacro mime-entity-send (entity message &rest args) + `(luna-send ,entity ',(intern (format "mime-%s" (eval message))) ,@args)) (defun mime-open-entity (type location) "Open an entity and return it. TYPE is representation-type. LOCATION is location of entity. Specification of it is depended on representation-type." - (funcall (mime-find-function 'open-entity type) location) - ) + (require (intern (format "mm%s" type))) + (luna-make-entity (mm-expand-class-name type) :location location)) -(defun mime-entity-cooked-p (entity) - "Return non-nil if contents of ENTITY has been already code-converted." - (funcall (mime-entity-function entity 'cooked-p)) - ) +(luna-define-generic mime-entity-cooked-p (entity) + "Return non-nil if contents of ENTITY has been already code-converted.") ;;; @ Entity as node of message ;;; -(defalias 'mime-entity-children 'mime-entity-children-internal) +(defun mime-entity-children (entity) + "Return list of entities included in the ENTITY." + (or (mime-entity-children-internal entity) + (luna-send entity 'mime-entity-children entity))) -(defalias 'mime-entity-node-id 'mime-entity-node-id-internal) +(defun mime-entity-node-id (entity) + "Return node-id of ENTITY." + (mime-entity-node-id-internal entity)) (defun mime-entity-number (entity) "Return entity-number of ENTITY." (reverse (mime-entity-node-id-internal entity))) -(defun mime-find-entity-from-number (entity-number &optional message) - "Return entity from ENTITY-NUMBER in MESSAGE. -If MESSAGE is not specified, `mime-message-structure' is used." - (or message - (setq message mime-message-structure)) +(defun mime-find-entity-from-number (entity-number message) + "Return entity from ENTITY-NUMBER in MESSAGE." (let ((sn (car entity-number))) (if (null sn) message @@ -132,231 +114,276 @@ If MESSAGE is not specified, `mime-message-structure' is used." )) ))) -(defun mime-find-entity-from-node-id (entity-node-id &optional message) - "Return entity from ENTITY-NODE-ID in MESSAGE. -If MESSAGE is not specified, `mime-message-structure' is used." +(defun mime-find-entity-from-node-id (entity-node-id message) + "Return entity from ENTITY-NODE-ID in MESSAGE." (mime-find-entity-from-number (reverse entity-node-id) message)) +(defun mime-find-entity-from-content-id (cid message) + "Return entity from CID in MESSAGE." + (if (equal cid (mime-entity-read-field message "Content-Id")) + message + (let ((children (mime-entity-children message)) + ret) + (while (and children + (null (setq ret (mime-find-entity-from-content-id + cid (car children))))) + (setq children (cdr children))) + ret))) + (defun mime-entity-parent (entity &optional message) "Return mother entity of ENTITY. -If MESSAGE is not specified, `mime-message-structure' in the buffer of -ENTITY is used." - (mime-find-entity-from-node-id - (cdr (mime-entity-node-id entity)) - (or message - (save-excursion - (set-buffer (mime-entity-buffer entity)) - mime-message-structure)))) +If MESSAGE is specified, it is regarded as root entity." + (if (equal entity message) + nil + (mime-entity-parent-internal entity))) -(defun mime-root-entity-p (entity) - "Return t if ENTITY is root-entity (message)." - (null (mime-entity-node-id entity))) +(defun mime-root-entity-p (entity &optional message) + "Return t if ENTITY is root-entity (message). +If MESSAGE is specified, it is regarded as root entity." + (null (mime-entity-parent entity message))) +(defun mime-find-root-entity (entity) + "Return root entity of ENTITY." + (while (not (mime-root-entity-p entity)) + (setq entity (mime-entity-parent entity))) + entity) -;;; @ Entity Buffer + +;;; @ Header buffer (obsolete) ;;; -(defun mime-entity-buffer (entity) - (or (mime-entity-buffer-internal entity) - (mime-entity-send entity 'entity-buffer))) +;; (luna-define-generic mime-entity-header-buffer (entity)) + +;; (luna-define-generic mime-goto-header-start-point (entity) +;; "Set buffer and point to header-start-position of ENTITY.") + +;; (luna-define-generic mime-entity-header-start-point (entity) +;; "Return header-start-position of ENTITY.") + +;; (luna-define-generic mime-entity-header-end-point (entity) +;; "Return header-end-position of ENTITY.") -(defun mime-entity-point-min (entity) - (mime-entity-send entity 'entity-point-min)) +;; (make-obsolete 'mime-entity-header-buffer "don't use it.") +;; (make-obsolete 'mime-goto-header-start-point "don't use it.") +;; (make-obsolete 'mime-entity-header-start-point "don't use it.") +;; (make-obsolete 'mime-entity-header-end-point "don't use it.") + + +;;; @ Body buffer (obsolete) +;;; -(defun mime-entity-point-max (entity) - (mime-entity-send entity 'entity-point-max)) +;; (luna-define-generic mime-entity-body-buffer (entity)) -(defun mime-entity-header-start (entity) - (or (mime-entity-header-start-internal entity) - (mime-entity-send entity 'entity-header-start))) +;; (luna-define-generic mime-goto-body-start-point (entity) +;; "Set buffer and point to body-start-position of ENTITY.") -(defun mime-entity-header-end (entity) - (or (mime-entity-header-end-internal entity) - (mime-entity-send entity 'entity-header-end))) +;; (luna-define-generic mime-goto-body-end-point (entity) +;; "Set buffer and point to body-end-position of ENTITY.") -(defun mime-entity-body-start (entity) - (or (mime-entity-body-start-internal entity) - (mime-entity-send entity 'entity-body-start))) +;; (luna-define-generic mime-entity-body-start-point (entity) +;; "Return body-start-position of ENTITY.") -(defun mime-entity-body-end (entity) - (or (mime-entity-body-end-internal entity) - (mime-entity-send entity 'entity-body-end))) +;; (luna-define-generic mime-entity-body-end-point (entity) +;; "Return body-end-position of ENTITY.") +;; (defalias 'mime-entity-body-start 'mime-entity-body-start-point) +;; (defalias 'mime-entity-body-end 'mime-entity-body-end-point) -;;; @ Entity Header +;; (make-obsolete 'mime-entity-body-buffer "don't use it.") +;; (make-obsolete 'mime-goto-body-start-point "don't use it.") +;; (make-obsolete 'mime-goto-body-end-point "don't use it.") +;; (make-obsolete 'mime-entity-body-start-point "don't use it.") +;; (make-obsolete 'mime-entity-body-end-point "don't use it.") +;; (make-obsolete 'mime-entity-body-start "don't use it.") +;; (make-obsolete 'mime-entity-body-end "don't use it.") + + +;;; @ Entity buffer (obsolete) +;;; + +;; (luna-define-generic mime-entity-buffer (entity)) +;; (make-obsolete 'mime-entity-buffer "don't use it.") + +;; (luna-define-generic mime-entity-point-min (entity)) +;; (make-obsolete 'mime-entity-point-min "don't use it.") + +;; (luna-define-generic mime-entity-point-max (entity)) +;; (make-obsolete 'mime-entity-point-max "don't use it.") + + +;;; @ Entity ;;; -(defun mime-fetch-field (field-name &optional entity) - (or (symbolp field-name) - (setq field-name (intern (capitalize (capitalize field-name))))) - (or entity - (setq entity mime-message-structure)) - (let* ((header (mime-entity-original-header-internal entity)) - (field-body (cdr (assq field-name header)))) - (or field-body - (progn - (if (setq field-body - (mime-entity-send entity 'fetch-field - (symbol-name field-name))) - (mime-entity-set-original-header-internal - entity (put-alist field-name field-body header)) - ) - field-body)))) - -(defalias 'mime-entity-content-type 'mime-entity-content-type-internal) +(luna-define-generic mime-insert-entity (entity) + "Insert header and body of ENTITY at point.") + +(luna-define-generic mime-write-entity (entity filename) + "Write header and body of ENTITY into FILENAME.") + + +;;; @ Entity Body +;;; + +(luna-define-generic mime-entity-body (entity) + "Return network representation of ENTITY body.") + +(luna-define-generic mime-insert-entity-body (entity) + "Insert network representation of ENTITY body at point.") + +(luna-define-generic mime-write-entity-body (entity filename) + "Write body of ENTITY into FILENAME.") + + +;;; @ Entity Content +;;; + +(luna-define-generic mime-entity-content (entity) + "Return content of ENTITY as byte sequence (string).") + +(luna-define-generic mime-insert-entity-content (entity) + "Insert content of ENTITY at point.") + +(luna-define-generic mime-write-entity-content (entity filename) + "Write content of ENTITY into FILENAME.") + +(luna-define-generic mime-insert-text-content (entity) + "Insert decoded text body of ENTITY.") + + +;;; @ Header fields +;;; + +(luna-define-generic mime-entity-fetch-field (entity field-name) + "Return the value of the ENTITY's header field whose type is FIELD-NAME.") + +;; (defun mime-fetch-field (field-name &optional entity) +;; "Return the value of the ENTITY's header field whose type is FIELD-NAME." +;; (if (symbolp field-name) +;; (setq field-name (symbol-name field-name)) +;; ) +;; (or entity +;; (setq entity mime-message-structure)) +;; (mime-entity-fetch-field entity field-name) +;; ) +;; (make-obsolete 'mime-fetch-field 'mime-entity-fetch-field) + +(defun mime-entity-content-type (entity) + "Return content-type of ENTITY." + (or (mime-entity-content-type-internal entity) + (let ((ret (mime-entity-fetch-field entity "Content-Type"))) + (if ret + (mime-entity-set-content-type-internal + entity (mime-parse-Content-Type ret)) + )))) (defun mime-entity-content-disposition (entity) + "Return content-disposition of ENTITY." (or (mime-entity-content-disposition-internal entity) - (let ((ret (mime-fetch-field 'Content-Disposition entity))) + (let ((ret (mime-entity-fetch-field entity "Content-Disposition"))) (if ret - (let ((disposition (mime-parse-Content-Disposition ret))) - (when disposition - (mime-entity-set-content-disposition-internal - entity disposition) - disposition)))))) - -(defun mime-entity-encoding (entity) + (mime-entity-set-content-disposition-internal + entity (mime-parse-Content-Disposition ret)) + )))) + +(defun mime-entity-encoding (entity &optional default-encoding) + "Return content-transfer-encoding of ENTITY. +If the ENTITY does not have Content-Transfer-Encoding field, this +function returns DEFAULT-ENCODING. If it is nil, \"7bit\" is used as +default value." (or (mime-entity-encoding-internal entity) - (let ((ret (mime-fetch-field 'Content-Transfer-Encoding entity))) - (if ret - (let ((encoding (mime-parse-Content-Transfer-Encoding ret))) - (when encoding - (mime-entity-set-encoding-internal entity encoding) - encoding)))))) - -(defun mime-read-field (field-name &optional entity) - (or (symbolp field-name) - (setq field-name (capitalize (capitalize field-name)))) - (or entity - (setq entity mime-message-structure)) - (cond ((eq field-name 'Content-Type) - (mime-entity-content-type entity) - ) - ((eq field-name 'Content-Disposition) - (mime-entity-content-disposition entity) - ) - ((eq field-name 'Content-Transfer-Encoding) - (mime-entity-encoding entity) - ) - (t - (let* ((header (mime-entity-parsed-header-internal entity)) - (field (cdr (assq field-name header)))) - (or field - (let ((field-body (mime-fetch-field field-name entity))) - (when field-body - (cond ((memq field-name '(From Resent-From - To Resent-To - Cc Resent-Cc - Bcc Resent-Bcc - Reply-To Resent-Reply-To)) - (setq field (std11-parse-addresses - (eword-lexical-analyze field-body))) - ) - ((memq field-name '(Sender Resent-Sender)) - (setq field (std11-parse-address - (eword-lexical-analyze field-body))) - ) - ((memq field-name eword-decode-ignored-field-list) - (setq field field-body)) - ((memq field-name eword-decode-structured-field-list) - (setq field (eword-decode-structured-field-body - field-body))) - (t - (setq field (eword-decode-unstructured-field-body - field-body)) - )) - (mime-entity-set-parsed-header-internal - entity (put-alist field-name field header)) - field))))))) - -(defun eword-visible-field-p (field-name visible-fields invisible-fields) - (or (catch 'found - (while visible-fields - (let ((regexp (car visible-fields))) - (if (string-match regexp field-name) - (throw 'found t) - )) - (setq visible-fields (cdr visible-fields)) - )) - (catch 'found - (while invisible-fields - (let ((regexp (car invisible-fields))) - (if (string-match regexp field-name) - (throw 'found nil) - )) - (setq invisible-fields (cdr invisible-fields)) - ) - t))) - -(defun mime-insert-decoded-header (entity - &optional invisible-fields visible-fields - code-conversion) - "Insert before point a decoded header of ENTITY." - (let ((default-charset - (if code-conversion - (if (mime-charset-to-coding-system code-conversion) - code-conversion - default-mime-charset)))) - (save-restriction - (narrow-to-region (point)(point)) - (let ((the-buf (current-buffer)) - (src-buf (mime-entity-buffer entity)) - (h-end (mime-entity-header-end entity)) - beg p end field-name len field) - (save-excursion - (set-buffer src-buf) - (goto-char (mime-entity-header-start entity)) - (save-restriction - (narrow-to-region (point) h-end) - (while (re-search-forward std11-field-head-regexp nil t) - (setq beg (match-beginning 0) - p (match-end 0) - field-name (buffer-substring beg (1- p)) - len (string-width field-name) - end (std11-field-end)) - (when (eword-visible-field-p field-name - visible-fields invisible-fields) - (setq field (intern (capitalize field-name))) - (save-excursion - (set-buffer the-buf) - (insert field-name) - (insert ":") - (cond ((memq field eword-decode-ignored-field-list) - ;; Don't decode - (insert-buffer-substring src-buf p end) - ) - ((memq field eword-decode-structured-field-list) - ;; Decode as structured field - (let ((body (save-excursion - (set-buffer src-buf) - (buffer-substring p end))) - (default-mime-charset default-charset)) - (insert (eword-decode-and-fold-structured-field - body (1+ len))) - )) - (t - ;; Decode as unstructured field - (let ((body (save-excursion - (set-buffer src-buf) - (buffer-substring p end))) - (default-mime-charset default-charset)) - (insert (eword-decode-unstructured-field-body - body (1+ len))) - ))) - (insert "\n") - ))))))))) + (let ((ret (mime-entity-fetch-field entity "Content-Transfer-Encoding"))) + (mime-entity-set-encoding-internal + entity + (or (and ret (mime-parse-Content-Transfer-Encoding ret)) + default-encoding "7bit")) + ))) + +(defvar mime-field-parser-alist + '((Return-Path . std11-parse-route-addr) + + (Reply-To . std11-parse-addresses) + + (Sender . std11-parse-mailbox) + (From . std11-parse-addresses) + + (Resent-Reply-To . std11-parse-addresses) + + (Resent-Sender . std11-parse-mailbox) + (Resent-From . std11-parse-addresses) + + (To . std11-parse-addresses) + (Resent-To . std11-parse-addresses) + (Cc . std11-parse-addresses) + (Resent-Cc . std11-parse-addresses) + (Bcc . std11-parse-addresses) + (Resent-Bcc . std11-parse-addresses) + + (Message-Id . mime-parse-msg-id) + (Recent-Message-Id . mime-parse-msg-id) + + (In-Reply-To . std11-parse-msg-ids) + (References . std11-parse-msg-ids) + + (Content-Id . mime-parse-msg-id) + )) + +(defun mime-entity-read-field (entity field-name) + (let ((sym (if (symbolp field-name) + (prog1 + field-name + (setq field-name (symbol-name field-name))) + (intern (capitalize field-name))))) + (cond ((eq sym 'Content-Type) + (mime-entity-content-type entity) + ) + ((eq sym 'Content-Disposition) + (mime-entity-content-disposition entity) + ) + ((eq sym 'Content-Transfer-Encoding) + (mime-entity-encoding entity) + ) + (t + (let* ((header (mime-entity-parsed-header-internal entity)) + (field (cdr (assq sym header)))) + (or field + (let ((field-body (mime-entity-fetch-field entity field-name)) + parser) + (when field-body + (setq parser + (cdr (assq sym mime-field-parser-alist))) + (setq field + (if parser + (funcall parser + (eword-lexical-analyze field-body)) + (mime-decode-field-body field-body sym 'plain) + )) + (mime-entity-set-parsed-header-internal + entity (put-alist sym field header)) + field)))))))) + +;; (defun mime-read-field (field-name &optional entity) +;; (or entity +;; (setq entity mime-message-structure)) +;; (mime-entity-read-field entity field-name) +;; ) +;; (make-obsolete 'mime-read-field 'mime-entity-read-field) + +(luna-define-generic mime-insert-header (entity &optional invisible-fields + visible-fields) + "Insert before point a decoded header of ENTITY.") ;;; @ Entity Attributes ;;; +(luna-define-generic mime-entity-name (entity) + "Return name of the ENTITY.") + (defun mime-entity-uu-filename (entity) (if (member (mime-entity-encoding entity) mime-uuencode-encoding-name-list) - (save-excursion - (set-buffer (mime-entity-buffer entity)) - (goto-char (mime-entity-body-start entity)) - (if (re-search-forward "^begin [0-9]+ " - (mime-entity-body-end entity) t) + (with-temp-buffer + (mime-insert-entity-body entity) + (if (re-search-forward "^begin [0-9]+ " nil t) (if (looking-at ".+$") (buffer-substring (match-beginning 0)(match-end 0)) ))))) @@ -364,57 +391,42 @@ ENTITY is used." (defun mime-entity-filename (entity) "Return filename of ENTITY." (or (mime-entity-uu-filename entity) - (mime-content-disposition-filename - (mime-entity-content-disposition entity)) + (let ((ret (mime-content-disposition-filename + (mime-entity-content-disposition entity)))) + (if (and mime-header-accept-quoted-encoded-words + ret) + (eword-decode-string ret) + ret)) (cdr (let ((param (mime-content-type-parameters (mime-entity-content-type entity)))) (or (assoc "name" param) - (assoc "x-name" param)) - )))) + (assoc "x-name" param)))))) (defsubst mime-entity-media-type (entity) + "Return primary media-type of ENTITY." (mime-content-type-primary-type (mime-entity-content-type entity))) + (defsubst mime-entity-media-subtype (entity) + "Return media-subtype of ENTITY." (mime-content-type-subtype (mime-entity-content-type entity))) + (defsubst mime-entity-parameters (entity) + "Return parameters of Content-Type of ENTITY." (mime-content-type-parameters (mime-entity-content-type entity))) + (defsubst mime-entity-type/subtype (entity-info) + "Return type/subtype of Content-Type of ENTITY." (mime-type/subtype-string (mime-entity-media-type entity-info) (mime-entity-media-subtype entity-info))) +(defun mime-entity-set-content-type (entity content-type) + "Set ENTITY's content-type to CONTENT-TYPE." + (mime-entity-set-content-type-internal entity content-type)) -;;; @ Entity Content -;;; - -(defun mime-entity-content (entity) - (mime-entity-send entity 'entity-content)) - -(defun mime-write-entity-content (entity filename) - "Write content of ENTITY into FILENAME." - (mime-entity-send entity 'write-entity-content filename)) - -(defun mime-write-entity (entity filename) - "Write ENTITY into FILENAME." - (save-excursion - (set-buffer (mime-entity-buffer entity)) - (if (mime-entity-cooked-p entity) - (write-region (mime-entity-point-min entity) - (mime-entity-point-max entity) filename) - (write-region-as-binary (mime-entity-point-min entity) - (mime-entity-point-max entity) filename) - ))) - -(defun mime-write-entity-body (entity filename) - "Write body of ENTITY into FILENAME." - (save-excursion - (set-buffer (mime-entity-buffer entity)) - (if (mime-entity-cooked-p entity) - (write-region (mime-entity-body-start entity) - (mime-entity-body-end entity) filename) - (write-region-as-binary (mime-entity-body-start entity) - (mime-entity-body-end entity) filename) - ))) +(defun mime-entity-set-encoding (entity encoding) + "Set ENTITY's content-transfer-encoding to ENCODING." + (mime-entity-set-encoding-internal entity encoding)) ;;; @ end