/usr/share/emacs/site-lisp/flim/mime.el is in flim 1:1.14.9+0.20110516-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 | ;;; mime.el --- MIME library module
;; Copyright (C) 1998,1999,2000,2001,2003 Free Software Foundation, Inc.
;; Author: MORIOKA Tomohiko <tomo@m17n.org>
;; Keywords: MIME, multimedia, mail, news
;; This file is part of FLIM (Faithful Library about Internet Message).
;; 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., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Code:
(require 'alist)
(require 'std11)
(require 'mime-def)
(require 'eword-decode)
(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.")
(autoload 'mime-read-Content-Type "mime-parse"
"Read field-body of Content-Type field from current-buffer,
and return parsed it.")
(autoload 'mime-parse-Content-Disposition "mime-parse"
"Parse STRING as field-body of Content-Disposition field.")
(autoload 'mime-read-Content-Disposition "mime-parse"
"Read field-body of Content-Disposition field from current-buffer,
and return parsed it.")
(autoload 'mime-parse-Content-Transfer-Encoding "mime-parse"
"Parse STRING as field-body of Content-Transfer-Encoding field.")
(autoload 'mime-read-Content-Transfer-Encoding "mime-parse"
"Read field-body of Content-Transfer-Encoding field from
current-buffer, and return it.")
(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
;;;
(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."
(require (intern (format "mm%s" type)))
(luna-make-entity (mm-expand-class-name type) :location location))
(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
;;;
(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)))
(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 message)
"Return entity from ENTITY-NUMBER in MESSAGE."
(let ((sn (car entity-number)))
(if (null sn)
message
(let ((rc (nth sn (mime-entity-children message))))
(if rc
(mime-find-entity-from-number (cdr entity-number) rc)
))
)))
(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 specified, it is regarded as root entity."
(if (equal entity message)
nil
(mime-entity-parent-internal 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)
;;; @ Header buffer (obsolete)
;;;
;; (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.")
;; (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)
;;;
;; (luna-define-generic mime-entity-body-buffer (entity))
;; (luna-define-generic mime-goto-body-start-point (entity)
;; "Set buffer and point to body-start-position of ENTITY.")
;; (luna-define-generic mime-goto-body-end-point (entity)
;; "Set buffer and point to body-end-position of ENTITY.")
;; (luna-define-generic mime-entity-body-start-point (entity)
;; "Return body-start-position of ENTITY.")
;; (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)
;; (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
;;;
(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-entity-fetch-field entity "Content-Disposition")))
(if ret
(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-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)
(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))
)))))
(defun mime-entity-filename (entity)
"Return filename of ENTITY."
(or (mime-entity-uu-filename 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))))))
(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))
(defun mime-entity-set-encoding (entity encoding)
"Set ENTITY's content-transfer-encoding to ENCODING."
(mime-entity-set-encoding-internal entity encoding))
;;; @ end
;;;
(provide 'mime)
;;; mime.el ends here
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