code.delx.au - gnu-emacs/blob - lisp/gnus/gnus-uu.el

   1 ;;; gnus-uu.el --- extract (uu)encoded files in Gnus
   2
   3 ;; Copyright (C) 1985-1987, 1993-1998, 2000-2014 Free Software
   4 ;; Foundation, Inc.
   5
   6 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
   7 ;; Created: 2 Oct 1993
   8 ;; Keyword: news
   9
  10 ;; This file is part of GNU Emacs.
  11
  12 ;; GNU Emacs is free software: you can redistribute it and/or modify
  13 ;; it under the terms of the GNU General Public License as published by
  14 ;; the Free Software Foundation, either version 3 of the License, or
  15 ;; (at your option) any later version.
  16
  17 ;; GNU Emacs is distributed in the hope that it will be useful,
  18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ;; GNU General Public License for more details.
  21
  22 ;; You should have received a copy of the GNU General Public License
  23 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  24
  25 ;;; Commentary:
  26
  27 ;;; Code:
  28
  29 (eval-when-compile (require 'cl))
  30
  31 (require 'gnus)
  32 (require 'gnus-art)
  33 (require 'message)
  34 (require 'gnus-msg)
  35 (require 'mm-decode)
  36 (require 'yenc)
  37
  38 (defgroup gnus-extract nil
  39   "Extracting encoded files."
  40   :prefix "gnus-uu-"
  41   :group 'gnus)
  42
  43 (defgroup gnus-extract-view nil
  44   "Viewing extracted files."
  45   :group 'gnus-extract)
  46
  47 (defgroup gnus-extract-archive nil
  48   "Extracting encoded archives."
  49   :group 'gnus-extract)
  50
  51 (defgroup gnus-extract-post nil
  52   "Extracting encoded archives."
  53   :prefix "gnus-uu-post"
  54   :group 'gnus-extract)
  55
  56 ;; Default viewing action rules
  57
  58 (defcustom gnus-uu-default-view-rules
  59   '(("\\.te?xt$\\|\\.doc$\\|read.*me\\|\\.c?$\\|\\.h$\\|\\.bat$\\|\\.asm$\\|makefile" "cat %s | sed 's/\r$//'")
  60     ("\\.pas$" "cat %s | sed 's/\r$//'")
  61     ("\\.[1-9]$" "groff -mandoc -Tascii %s | sed s/\b.//g")
  62     ("\\.\\(jpe?g\\|gif\\|tiff?\\|p[pgb]m\\|xwd\\|xbm\\|pcx\\)$" "display")
  63     ("\\.tga$" "tgatoppm %s | ee -")
  64     ("\\.\\(wav\\|aiff\\|hcom\\|u[blw]\\|s[bfw]\\|voc\\|smp\\)$"
  65      "sox -v .5 %s -t .au -u - > /dev/audio")
  66     ("\\.au$" "cat %s > /dev/audio")
  67     ("\\.midi?$" "playmidi -f")
  68     ("\\.mod$" "str32")
  69     ("\\.ps$" "ghostview")
  70     ("\\.dvi$" "xdvi")
  71     ("\\.html$" "xmosaic")
  72     ("\\.mpe?g$" "mpeg_play")
  73     ("\\.\\(flc\\|fli\\|rle\\|iff\\|pfx\\|avi\\|sme\\|rpza\\|dl\\|qt\\|rsrc\\|mov\\)$" "xanim")
  74     ("\\.\\(tar\\|arj\\|zip\\|zoo\\|arc\\|gz\\|Z\\|lzh\\|ar\\|lha\\)$"
  75      "gnus-uu-archive"))
  76   "*Default actions to be taken when the user asks to view a file.
  77 To change the behavior, you can either edit this variable or set
  78 `gnus-uu-user-view-rules' to something useful.
  79
  80 For example:
  81
  82 To make gnus-uu use 'xli' to display JPEG and GIF files, put the
  83 following in your .emacs file:
  84
  85   (setq gnus-uu-user-view-rules '((\"jpg$\\\\|gif$\" \"xli\")))
  86
  87 Both these variables are lists of lists with two string elements.  The
  88 first string is a regular expression.  If the file name matches this
  89 regular expression, the command in the second string is executed with
  90 the file as an argument.
  91
  92 If the command string contains \"%s\", the file name will be inserted
  93 at that point in the command string.  If there's no \"%s\" in the
  94 command string, the file name will be appended to the command string
  95 before executing.
  96
  97 There are several user variables to tailor the behavior of gnus-uu to
  98 your needs.  First we have `gnus-uu-user-view-rules', which is the
  99 variable gnus-uu first consults when trying to decide how to view a
 100 file.  If this variable contains no matches, gnus-uu examines the
 101 default rule variable provided in this package.  If gnus-uu finds no
 102 match here, it uses `gnus-uu-user-view-rules-end' to try to make a
 103 match."
 104   :group 'gnus-extract-view
 105   :type '(repeat (group regexp (string :tag "Command"))))
 106
 107 (defcustom gnus-uu-user-view-rules nil
 108   "What actions are to be taken to view a file.
 109 See the documentation on the `gnus-uu-default-view-rules' variable for
 110 details."
 111   :group 'gnus-extract-view
 112   :type '(repeat (group regexp (string :tag "Command"))))
 113
 114 (defcustom gnus-uu-user-view-rules-end
 115   '(("" "file"))
 116   "*What actions are to be taken if no rule matched the file name.
 117 See the documentation on the `gnus-uu-default-view-rules' variable for
 118 details."
 119   :group 'gnus-extract-view
 120   :type '(repeat (group regexp (string :tag "Command"))))
 121
 122 ;; Default unpacking commands
 123
 124 (defcustom gnus-uu-default-archive-rules
 125   '(("\\.tar$" "tar xf")
 126     ("\\.zip$" "unzip -o")
 127     ("\\.ar$" "ar x")
 128     ("\\.arj$" "unarj x")
 129     ("\\.zoo$" "zoo -e")
 130     ("\\.\\(lzh\\|lha\\)$" "lha x")
 131     ("\\.Z$" "uncompress")
 132     ("\\.gz$" "gunzip")
 133     ("\\.arc$" "arc -x"))
 134   "*See `gnus-uu-user-archive-rules'."
 135   :group 'gnus-extract-archive
 136   :type '(repeat (group regexp (string :tag "Command"))))
 137
 138 (defvar gnus-uu-destructive-archivers
 139   (list "uncompress" "gunzip"))
 140
 141 (defcustom gnus-uu-user-archive-rules nil
 142   "A list that can be set to override the default archive unpacking commands.
 143 To use, for instance, 'untar' to unpack tar files and 'zip -x' to
 144 unpack zip files, say the following:
 145   (setq gnus-uu-user-archive-rules
 146     '((\"\\\\.tar$\" \"untar\")
 147       (\"\\\\.zip$\" \"zip -x\")))"
 148   :group 'gnus-extract-archive
 149   :type '(repeat (group regexp (string :tag "Command"))))
 150
 151 (defcustom gnus-uu-ignore-files-by-name nil
 152   "*A regular expression saying what files should not be viewed based on name.
 153 If, for instance, you want gnus-uu to ignore all .au and .wav files,
 154 you could say something like
 155
 156   (setq gnus-uu-ignore-files-by-name \"\\\\.au$\\\\|\\\\.wav$\")
 157
 158 Note that this variable can be used in conjunction with the
 159 `gnus-uu-ignore-files-by-type' variable."
 160   :group 'gnus-extract
 161   :type '(choice (const :tag "off" nil)
 162                  (regexp :format "%v")))
 163
 164 (defcustom gnus-uu-ignore-files-by-type nil
 165   "*A regular expression saying what files that shouldn't be viewed, based on MIME file type.
 166 If, for instance, you want gnus-uu to ignore all audio files and all mpegs,
 167 you could say something like
 168
 169   (setq gnus-uu-ignore-files-by-type \"audio/\\\\|video/mpeg\")
 170
 171 Note that this variable can be used in conjunction with the
 172 `gnus-uu-ignore-files-by-name' variable."
 173   :group 'gnus-extract
 174   :type '(choice (const :tag "off" nil)
 175                  (regexp :format "%v")))
 176
 177 ;; Pseudo-MIME support
 178
 179 (defconst gnus-uu-ext-to-mime-list
 180   '(("\\.gif$" "image/gif")
 181     ("\\.jpe?g$" "image/jpeg")
 182     ("\\.tiff?$" "image/tiff")
 183     ("\\.xwd$" "image/xwd")
 184     ("\\.pbm$" "image/pbm")
 185     ("\\.pgm$" "image/pgm")
 186     ("\\.ppm$" "image/ppm")
 187     ("\\.xbm$" "image/xbm")
 188     ("\\.pcx$" "image/pcx")
 189     ("\\.tga$" "image/tga")
 190     ("\\.ps$" "image/postscript")
 191     ("\\.fli$" "video/fli")
 192     ("\\.wav$" "audio/wav")
 193     ("\\.aiff$" "audio/aiff")
 194     ("\\.hcom$" "audio/hcom")
 195     ("\\.voc$" "audio/voc")
 196     ("\\.smp$" "audio/smp")
 197     ("\\.mod$" "audio/mod")
 198     ("\\.dvi$" "image/dvi")
 199     ("\\.mpe?g$" "video/mpeg")
 200     ("\\.au$" "audio/basic")
 201     ("\\.\\(te?xt\\|doc\\|c\\|h\\)$" "text/plain")
 202     ("\\.\\(c\\|h\\)$" "text/source")
 203     ("read.*me" "text/plain")
 204     ("\\.html$" "text/html")
 205     ("\\.bat$" "text/bat")
 206     ("\\.[1-6]$" "text/man")
 207     ("\\.flc$" "video/flc")
 208     ("\\.rle$" "video/rle")
 209     ("\\.pfx$" "video/pfx")
 210     ("\\.avi$" "video/avi")
 211     ("\\.sme$" "video/sme")
 212     ("\\.rpza$" "video/prza")
 213     ("\\.dl$" "video/dl")
 214     ("\\.qt$" "video/qt")
 215     ("\\.rsrc$" "video/rsrc")
 216     ("\\..*$" "unknown/unknown")))
 217
 218 ;; Various variables users may set
 219
 220 (defcustom gnus-uu-tmp-dir
 221   (cond ((fboundp 'temp-directory) (temp-directory))
 222         ((boundp 'temporary-file-directory) temporary-file-directory)
 223         ("/tmp/"))
 224   "*Variable saying where gnus-uu is to do its work.
 225 Default is \"/tmp/\"."
 226   :group 'gnus-extract
 227   :type 'directory)
 228
 229 (defcustom gnus-uu-do-not-unpack-archives nil
 230   "*Non-nil means that gnus-uu won't peek inside archives looking for files to display.
 231 Default is nil."
 232   :group 'gnus-extract-archive
 233   :type 'boolean)
 234
 235 (defcustom gnus-uu-ignore-default-view-rules nil
 236   "*Non-nil means that gnus-uu will ignore the default viewing rules.
 237 Only the user viewing rules will be consulted.  Default is nil."
 238   :group 'gnus-extract-view
 239   :type 'boolean)
 240
 241 (defcustom gnus-uu-grabbed-file-functions nil
 242   "Functions run on each file after successful decoding.
 243 They will be called with the name of the file as the argument.
 244 Likely functions you can use in this list are `gnus-uu-grab-view'
 245 and `gnus-uu-grab-move'."
 246   :group 'gnus-extract
 247   :options '(gnus-uu-grab-view gnus-uu-grab-move)
 248   :type 'hook)
 249
 250 (defcustom gnus-uu-ignore-default-archive-rules nil
 251   "*Non-nil means that gnus-uu will ignore the default archive unpacking commands.
 252 Only the user unpacking commands will be consulted.  Default is nil."
 253   :group 'gnus-extract-archive
 254   :type 'boolean)
 255
 256 (defcustom gnus-uu-kill-carriage-return t
 257   "*Non-nil means that gnus-uu will strip all carriage returns from articles.
 258 Default is t."
 259   :group 'gnus-extract
 260   :type 'boolean)
 261
 262 (defcustom gnus-uu-view-with-metamail nil
 263   "*Non-nil means that files will be viewed with metamail.
 264 The gnus-uu viewing functions will be ignored and gnus-uu will try
 265 to guess at a content-type based on file name suffixes.  Default
 266 it nil."
 267   :group 'gnus-extract
 268   :type 'boolean)
 269
 270 (defcustom gnus-uu-unmark-articles-not-decoded nil
 271   "*Non-nil means that gnus-uu will mark articles that were unsuccessfully decoded as unread.
 272 Default is nil."
 273   :group 'gnus-extract
 274   :type 'boolean)
 275
 276 (defcustom gnus-uu-correct-stripped-uucode nil
 277   "*Non-nil means that gnus-uu will *try* to fix uuencoded files that have had trailing spaces deleted.
 278 Default is nil."
 279   :group 'gnus-extract
 280   :type 'boolean)
 281
 282 (defcustom gnus-uu-save-in-digest nil
 283   "*Non-nil means that gnus-uu, when asked to save without decoding, will save in digests.
 284 If this variable is nil, gnus-uu will just save everything in a
 285 file without any embellishments.  The digesting almost conforms to RFC1153 -
 286 no easy way to specify any meaningful volume and issue numbers were found,
 287 so I simply dropped them."
 288   :group 'gnus-extract
 289   :type 'boolean)
 290
 291 (defcustom gnus-uu-pre-uudecode-hook nil
 292   "Hook run before sending a message to uudecode."
 293   :group 'gnus-extract
 294   :type 'hook)
 295
 296 (defcustom gnus-uu-digest-headers
 297   '("^Date:" "^From:" "^To:" "^Cc:" "^Subject:" "^Message-ID:" "^Keywords:"
 298     "^Summary:" "^References:" "^Content-Type:" "^Content-Transfer-Encoding:"
 299     "^MIME-Version:" "^Content-Disposition:" "^Content-Description:"
 300     "^Content-ID:")
 301   "*List of regexps to match headers included in digested messages.
 302 The headers will be included in the sequence they are matched.  If nil
 303 include all headers."
 304   :group 'gnus-extract
 305   :type '(repeat regexp))
 306
 307 (defcustom gnus-uu-save-separate-articles nil
 308   "*Non-nil means that gnus-uu will save articles in separate files."
 309   :group 'gnus-extract
 310   :type 'boolean)
 311
 312 (defcustom gnus-uu-be-dangerous 'ask
 313   "*Specifies what to do if unusual situations arise during decoding.
 314 If nil, be as conservative as possible.  If t, ignore things that
 315 didn't work, and overwrite existing files.  Otherwise, ask each time."
 316   :group 'gnus-extract
 317   :type '(choice (const :tag "conservative" nil)
 318                  (const :tag "ask" ask)
 319                  (const :tag "liberal" t)))
 320
 321 ;; Internal variables
 322
 323 (defvar gnus-uu-saved-article-name nil)
 324
 325 (defvar gnus-uu-begin-string "^begin[ \t]+0?[0-7][0-7][0-7][ \t]+\\(.*\\)$")
 326 (defvar gnus-uu-end-string "^end[ \t]*$")
 327
 328 (defvar gnus-uu-body-line "^M")
 329 (let ((i 61))
 330   (while (> (setq i (1- i)) 0)
 331     (setq gnus-uu-body-line (concat gnus-uu-body-line "[^a-z]")))
 332   (setq gnus-uu-body-line (concat gnus-uu-body-line ".?$")))
 333
 334 ;"^M.............................................................?$"
 335
 336 (defvar gnus-uu-shar-begin-string "^#! */bin/sh")
 337
 338 (defvar gnus-uu-shar-name-marker
 339   "begin 0?[0-7][0-7][0-7][ \t]+\\(\\(\\w\\|[.\\:]\\)*\\b\\)")
 340
 341 (defvar gnus-uu-postscript-begin-string "^%!PS-")
 342 (defvar gnus-uu-postscript-end-string "^%%EOF$")
 343
 344 (defvar gnus-uu-file-name nil)
 345 (defvar gnus-uu-uudecode-process nil)
 346 (defvar gnus-uu-binhex-article-name nil)
 347 (defvar gnus-uu-yenc-article-name nil)
 348
 349 (defvar gnus-uu-work-dir nil)
 350
 351 (defvar gnus-uu-output-buffer-name " *Gnus UU Output*")
 352
 353 (defvar gnus-uu-default-dir gnus-article-save-directory)
 354 (defvar gnus-uu-digest-from-subject nil)
 355 (defvar gnus-uu-digest-buffer nil)
 356
 357 ;; Commands.
 358
 359 (defun gnus-uu-decode-uu (&optional n)
 360   "Uudecodes the current article."
 361   (interactive "P")
 362   (gnus-uu-decode-with-method 'gnus-uu-uustrip-article n))
 363
 364 (defun gnus-uu-decode-uu-and-save (n dir)
 365   "Decodes and saves the resulting file."
 366   (interactive
 367    (list current-prefix-arg
 368          (file-name-as-directory
 369           (read-directory-name "Uudecode and save in dir: "
 370                           gnus-uu-default-dir
 371                           gnus-uu-default-dir t))))
 372   (gnus-uu-decode-with-method 'gnus-uu-uustrip-article n dir nil nil t))
 373
 374 (defun gnus-uu-decode-unshar (&optional n)
 375   "Unshars the current article."
 376   (interactive "P")
 377   (gnus-uu-decode-with-method 'gnus-uu-unshar-article n nil nil 'scan t))
 378
 379 (defun gnus-uu-decode-unshar-and-save (n dir)
 380   "Unshars and saves the current article."
 381   (interactive
 382    (list current-prefix-arg
 383          (file-name-as-directory
 384           (read-directory-name "Unshar and save in dir: "
 385                           gnus-uu-default-dir
 386                           gnus-uu-default-dir t))))
 387   (gnus-uu-decode-with-method 'gnus-uu-unshar-article n dir nil 'scan t))
 388
 389 (defun gnus-uu-decode-save (n file)
 390   "Saves the current article."
 391   (interactive
 392    (list current-prefix-arg
 393          (if gnus-uu-save-separate-articles
 394              (read-directory-name
 395               "Save articles in dir: " gnus-uu-default-dir gnus-uu-default-dir)
 396            (read-file-name
 397             "Save article in file: " gnus-uu-default-dir gnus-uu-default-dir))))
 398   (setq gnus-uu-saved-article-name file)
 399   (gnus-uu-decode-with-method 'gnus-uu-save-article n nil t))
 400
 401 (defun gnus-uu-decode-binhex (n dir)
 402   "Unbinhexes the current article."
 403   (interactive
 404    (list current-prefix-arg
 405          (file-name-as-directory
 406           (read-directory-name "Unbinhex and save in dir: "
 407                           gnus-uu-default-dir
 408                           gnus-uu-default-dir))))
 409   (gnus-uu-initialize)
 410   (setq gnus-uu-binhex-article-name
 411         (mm-make-temp-file (expand-file-name "binhex" gnus-uu-work-dir)))
 412   (gnus-uu-decode-with-method 'gnus-uu-binhex-article n dir))
 413
 414 (defun gnus-uu-decode-yenc (n dir)
 415   "Decode the yEnc-encoded current article."
 416   (interactive
 417    (list current-prefix-arg
 418          (file-name-as-directory
 419           (read-directory-name "yEnc decode and save in dir: "
 420                           gnus-uu-default-dir
 421                           gnus-uu-default-dir))))
 422   (setq gnus-uu-yenc-article-name nil)
 423   (gnus-uu-decode-with-method 'gnus-uu-yenc-article n dir nil t))
 424
 425 (defun gnus-uu-decode-uu-view (&optional n)
 426   "Uudecodes and views the current article."
 427   (interactive "P")
 428   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 429     (gnus-uu-decode-uu n)))
 430
 431 (defun gnus-uu-decode-uu-and-save-view (n dir)
 432   "Decodes, views and saves the resulting file."
 433   (interactive
 434    (list current-prefix-arg
 435          (read-file-name "Uudecode, view and save in dir: "
 436                          gnus-uu-default-dir
 437                          gnus-uu-default-dir t)))
 438   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 439     (gnus-uu-decode-uu-and-save n dir)))
 440
 441 (defun gnus-uu-decode-unshar-view (&optional n)
 442   "Unshars and views the current article."
 443   (interactive "P")
 444   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 445     (gnus-uu-decode-unshar n)))
 446
 447 (defun gnus-uu-decode-unshar-and-save-view (n dir)
 448   "Unshars and saves the current article."
 449   (interactive
 450    (list current-prefix-arg
 451          (read-file-name "Unshar, view and save in dir: "
 452                          gnus-uu-default-dir
 453                          gnus-uu-default-dir t)))
 454   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 455     (gnus-uu-decode-unshar-and-save n dir)))
 456
 457 (defun gnus-uu-decode-save-view (n file)
 458   "Saves and views the current article."
 459   (interactive
 460    (list current-prefix-arg
 461          (if gnus-uu-save-separate-articles
 462              (read-directory-name "Save articles in dir: "
 463                                   gnus-uu-default-dir gnus-uu-default-dir)
 464            (read-file-name "Save articles in file: "
 465                            gnus-uu-default-dir gnus-uu-default-dir))))
 466   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 467     (gnus-uu-decode-save n file)))
 468
 469 (defun gnus-uu-decode-binhex-view (n file)
 470   "Unbinhexes and views the current article."
 471   (interactive
 472    (list current-prefix-arg
 473          (read-file-name "Unbinhex, view and save in dir: "
 474                          gnus-uu-default-dir gnus-uu-default-dir)))
 475   (gnus-uu-initialize)
 476   (setq gnus-uu-binhex-article-name
 477         (mm-make-temp-file (expand-file-name "binhex" gnus-uu-work-dir)))
 478   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 479     (gnus-uu-decode-binhex n file)))
 480
 481
 482 ;; Digest and forward articles
 483
 484 (defun gnus-uu-digest-mail-forward (&optional n post)
 485   "Digests and forwards all articles in this series."
 486   (interactive "P")
 487   (gnus-uu-initialize)
 488   (let ((gnus-uu-save-in-digest t)
 489         (file (mm-make-temp-file (nnheader-concat gnus-uu-work-dir "forward")))
 490         (message-forward-as-mime message-forward-as-mime)
 491         (mail-parse-charset gnus-newsgroup-charset)
 492         (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
 493         gnus-uu-digest-buffer subject from)
 494     (if (and n (not (numberp n)))
 495         (setq message-forward-as-mime (not message-forward-as-mime)
 496               n nil))
 497     (let ((gnus-article-reply (gnus-summary-work-articles n)))
 498       (when (and (not n)
 499                  (= (length gnus-article-reply) 1))
 500         ;; The case where neither a number of articles nor a region is
 501         ;; specified.
 502         (gnus-summary-top-thread)
 503         (setq gnus-article-reply (nreverse (gnus-uu-find-articles-matching))))
 504       (gnus-setup-message 'forward
 505         (setq gnus-uu-digest-from-subject nil)
 506         (setq gnus-uu-digest-buffer
 507               (gnus-get-buffer-create " *gnus-uu-forward*"))
 508         ;; Specify articles to be forwarded.  Note that they should be
 509         ;; reversed; see `gnus-uu-get-list-of-articles'.
 510         (let ((gnus-newsgroup-processable (reverse gnus-article-reply)))
 511           (gnus-uu-decode-save n file)
 512           (setq gnus-article-reply gnus-newsgroup-processable))
 513         ;; Restore the value of `gnus-newsgroup-processable' to which
 514         ;; it should be set when it is not `let'-bound.
 515         (setq gnus-newsgroup-processable (reverse gnus-article-reply))
 516         (switch-to-buffer gnus-uu-digest-buffer)
 517         (let ((fs gnus-uu-digest-from-subject))
 518           (when fs
 519             (setq from (caar fs)
 520                   subject (gnus-simplify-subject-fuzzy (cdar fs))
 521                   fs (cdr fs))
 522             (while (and fs (or from subject))
 523               (when from
 524                 (unless (string= from (caar fs))
 525                   (setq from nil)))
 526               (when subject
 527                 (unless (string= (gnus-simplify-subject-fuzzy (cdar fs))
 528                                  subject)
 529                   (setq subject nil)))
 530               (setq fs (cdr fs))))
 531           (unless subject
 532             (setq subject "Digested Articles"))
 533           (unless from
 534             (setq from
 535                   (if (gnus-news-group-p gnus-newsgroup-name)
 536                       gnus-newsgroup-name
 537                     "Various"))))
 538         (goto-char (point-min))
 539         (when (re-search-forward "^Subject: ")
 540           (delete-region (point) (point-at-eol))
 541           (insert subject))
 542         (goto-char (point-min))
 543         (when (re-search-forward "^From:")
 544           (delete-region (point) (point-at-eol))
 545           (insert " " from))
 546         (let ((message-forward-decoded-p t))
 547           (message-forward post t))))
 548     (setq gnus-uu-digest-from-subject nil)))
 549
 550 (defun gnus-uu-digest-post-forward (&optional n)
 551   "Digest and forward to a newsgroup."
 552   (interactive "P")
 553   (gnus-uu-digest-mail-forward n t))
 554
 555 ;; Process marking.
 556
 557 (defun gnus-message-process-mark (unmarkp new-marked)
 558   (let ((old (- (length gnus-newsgroup-processable) (length new-marked))))
 559     (gnus-message 6 "%d mark%s %s%s"
 560                   (length new-marked)
 561                   (if (= (length new-marked) 1) "" "s")
 562                   (if unmarkp "removed" "added")
 563                   (cond
 564                    ((and (zerop old)
 565                          (not unmarkp))
 566                     "")
 567                    (unmarkp
 568                     (format ", %d remain marked"
 569                             (length gnus-newsgroup-processable)))
 570                    (t
 571                     (format ", %d already marked" old))))))
 572
 573 (defun gnus-new-processable (unmarkp articles)
 574   (if unmarkp
 575       (gnus-intersection gnus-newsgroup-processable articles)
 576     (gnus-set-difference articles gnus-newsgroup-processable)))
 577
 578 (defun gnus-uu-mark-by-regexp (regexp &optional unmark)
 579   "Set the process mark on articles whose subjects match REGEXP.
 580 When called interactively, prompt for REGEXP.
 581 Optional UNMARK non-nil means unmark instead of mark."
 582   (interactive "sMark (regexp): \nP")
 583   (save-excursion
 584     (let* ((articles (gnus-uu-find-articles-matching regexp))
 585            (new-marked (gnus-new-processable unmark articles)))
 586       (while articles
 587         (if unmark
 588             (gnus-summary-remove-process-mark (pop articles))
 589           (gnus-summary-set-process-mark (pop articles))))
 590       (gnus-message-process-mark unmark new-marked)))
 591   (gnus-summary-position-point))
 592
 593 (defun gnus-uu-unmark-by-regexp (regexp)
 594   "Remove the process mark from articles whose subjects match REGEXP.
 595 When called interactively, prompt for REGEXP."
 596   (interactive "sUnmark (regexp): ")
 597   (gnus-uu-mark-by-regexp regexp t))
 598
 599 (defun gnus-uu-mark-series (&optional silent)
 600   "Mark the current series with the process mark."
 601   (interactive)
 602   (let* ((articles (gnus-uu-find-articles-matching))
 603          (l (length articles)))
 604     (while articles
 605       (gnus-summary-set-process-mark (car articles))
 606       (setq articles (cdr articles)))
 607     (unless silent
 608       (gnus-message 6 "Marked %d articles" l))
 609     (gnus-summary-position-point)
 610     l))
 611
 612 (defun gnus-uu-mark-region (beg end &optional unmark)
 613   "Set the process mark on all articles between point and mark."
 614   (interactive "r")
 615   (save-excursion
 616     (goto-char beg)
 617     (while (< (point) end)
 618       (if unmark
 619           (gnus-summary-remove-process-mark (gnus-summary-article-number))
 620         (gnus-summary-set-process-mark (gnus-summary-article-number)))
 621       (forward-line 1)))
 622   (gnus-summary-position-point))
 623
 624 (defun gnus-uu-unmark-region (beg end)
 625   "Remove the process mark from all articles between point and mark."
 626   (interactive "r")
 627   (gnus-uu-mark-region beg end t))
 628
 629 (defun gnus-uu-mark-buffer ()
 630   "Set the process mark on all articles in the buffer."
 631   (interactive)
 632   (gnus-uu-mark-region (point-min) (point-max)))
 633
 634 (defun gnus-uu-unmark-buffer ()
 635   "Remove the process mark on all articles in the buffer."
 636   (interactive)
 637   (gnus-uu-mark-region (point-min) (point-max) t))
 638
 639 (defun gnus-uu-mark-thread ()
 640   "Marks all articles downwards in this thread."
 641   (interactive)
 642   (gnus-save-hidden-threads
 643     (let ((level (gnus-summary-thread-level)))
 644       (while (and (gnus-summary-set-process-mark
 645                    (gnus-summary-article-number))
 646                   (zerop (forward-line 1))
 647                   (> (gnus-summary-thread-level) level)))))
 648   (gnus-summary-position-point))
 649
 650 (defun gnus-uu-unmark-thread ()
 651   "Unmarks all articles downwards in this thread."
 652   (interactive)
 653   (let ((level (gnus-summary-thread-level)))
 654     (while (and (gnus-summary-remove-process-mark
 655                  (gnus-summary-article-number))
 656                 (zerop (forward-line 1))
 657                 (> (gnus-summary-thread-level) level))))
 658   (gnus-summary-position-point))
 659
 660 (defun gnus-uu-invert-processable ()
 661   "Invert the list of process-marked articles."
 662   (interactive)
 663   (let ((data gnus-newsgroup-data)
 664         number)
 665     (save-excursion
 666       (while data
 667         (if (memq (setq number (gnus-data-number (pop data)))
 668                   gnus-newsgroup-processable)
 669             (gnus-summary-remove-process-mark number)
 670           (gnus-summary-set-process-mark number)))))
 671   (gnus-summary-position-point))
 672
 673 (defun gnus-uu-mark-over (&optional score)
 674   "Mark all articles with a score over SCORE (the prefix)."
 675   (interactive "P")
 676   (let ((score (or score gnus-summary-default-score 0))
 677         (data gnus-newsgroup-data))
 678     (save-excursion
 679       (while data
 680         (when (> (or (cdr (assq (gnus-data-number (car data))
 681                                 gnus-newsgroup-scored))
 682                      gnus-summary-default-score 0)
 683                  score)
 684           (gnus-summary-set-process-mark (caar data)))
 685         (setq data (cdr data))))
 686     (gnus-summary-position-point)))
 687
 688 (defun gnus-uu-mark-sparse ()
 689   "Mark all series that have some articles marked."
 690   (interactive)
 691   (let ((marked (nreverse gnus-newsgroup-processable))
 692         subject articles total headers)
 693     (unless marked
 694       (error "No articles marked with the process mark"))
 695     (setq gnus-newsgroup-processable nil)
 696     (save-excursion
 697       (while marked
 698         (and (vectorp (setq headers
 699                             (gnus-summary-article-header (car marked))))
 700              (setq subject (mail-header-subject headers)
 701                    articles (gnus-uu-find-articles-matching
 702                              (gnus-uu-reginize-string subject))
 703                    total (nconc total articles)))
 704         (while articles
 705           (gnus-summary-set-process-mark (car articles))
 706           (setcdr marked (delq (car articles) (cdr marked)))
 707           (setq articles (cdr articles)))
 708         (setq marked (cdr marked)))
 709       (setq gnus-newsgroup-processable (nreverse total)))
 710     (gnus-summary-position-point)))
 711
 712 (defun gnus-uu-mark-all ()
 713   "Mark all articles in \"series\" order."
 714   (interactive)
 715   (setq gnus-newsgroup-processable nil)
 716   (save-excursion
 717     (let ((data gnus-newsgroup-data)
 718           (count 0)
 719           number)
 720       (while data
 721         (when (and (not (memq (setq number (gnus-data-number (car data)))
 722                               gnus-newsgroup-processable))
 723                    (vectorp (gnus-data-header (car data))))
 724           (gnus-summary-goto-subject number)
 725           (setq count (+ count (gnus-uu-mark-series t))))
 726         (setq data (cdr data)))
 727       (gnus-message 6 "Marked %d articles" count)))
 728   (gnus-summary-position-point))
 729
 730 ;; All PostScript functions written by Erik Selberg <speed@cs.washington.edu>.
 731
 732 (defun gnus-uu-decode-postscript (&optional n)
 733   "Gets PostScript of the current article."
 734   (interactive "P")
 735   (gnus-uu-decode-with-method 'gnus-uu-decode-postscript-article n))
 736
 737 (defun gnus-uu-decode-postscript-view (&optional n)
 738   "Gets and views the current article."
 739   (interactive "P")
 740   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 741     (gnus-uu-decode-postscript n)))
 742
 743 (defun gnus-uu-decode-postscript-and-save (n dir)
 744   "Extracts PostScript and saves the current article."
 745   (interactive
 746    (list current-prefix-arg
 747          (file-name-as-directory
 748           (read-directory-name "Save in dir: "
 749                           gnus-uu-default-dir
 750                           gnus-uu-default-dir t))))
 751   (gnus-uu-decode-with-method 'gnus-uu-decode-postscript-article
 752                               n dir nil nil t))
 753
 754 (defun gnus-uu-decode-postscript-and-save-view (n dir)
 755   "Decodes, views and saves the resulting file."
 756   (interactive
 757    (list current-prefix-arg
 758          (read-file-name "Where do you want to save the file(s)? "
 759                          gnus-uu-default-dir
 760                          gnus-uu-default-dir t)))
 761   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 762     (gnus-uu-decode-postscript-and-save n dir)))
 763
 764
 765 ;; Internal functions.
 766
 767 (defun gnus-uu-decode-with-method (method n &optional save not-insert
 768                                           scan cdir)
 769   (gnus-uu-initialize scan)
 770   (when save
 771     (setq gnus-uu-default-dir save))
 772   ;; Create the directory we save to.
 773   (when (and scan cdir save
 774              (not (file-exists-p save)))
 775     (make-directory save t))
 776   (let ((articles (gnus-uu-get-list-of-articles n))
 777         files)
 778     (setq files (gnus-uu-grab-articles articles method t))
 779     (let ((gnus-current-article (car articles)))
 780       (when scan
 781         (setq files (gnus-uu-scan-directory gnus-uu-work-dir))))
 782     (when save
 783       (gnus-uu-save-files files save))
 784     (when (eq gnus-uu-do-not-unpack-archives nil)
 785       (setq files (gnus-uu-unpack-files files)))
 786     (setq files (nreverse (gnus-uu-get-actions files)))
 787     (or not-insert (not gnus-insert-pseudo-articles)
 788         (gnus-summary-insert-pseudos files save))))
 789
 790 (defun gnus-uu-scan-directory (dir &optional rec)
 791   "Return a list of all files under DIR."
 792   (let ((files (directory-files dir t))
 793         out file)
 794     (while (setq file (pop files))
 795       (unless (member (file-name-nondirectory file) '("." ".."))
 796         (push (list (cons 'name file)
 797                     (cons 'article gnus-current-article))
 798               out)
 799         (when (file-directory-p file)
 800           (setq out (nconc (gnus-uu-scan-directory file t) out)))))
 801     (if rec
 802         out
 803       (nreverse out))))
 804
 805 (defun gnus-uu-save-files (files dir)
 806   "Save FILES in DIR."
 807   (let ((len (length files))
 808         (reg (concat "^" (regexp-quote gnus-uu-work-dir)))
 809         to-file file fromdir)
 810     (while (setq file (cdr (assq 'name (pop files))))
 811       (when (file-exists-p file)
 812         (string-match reg file)
 813         (setq fromdir (substring file (match-end 0)))
 814         (if (file-directory-p file)
 815             (gnus-make-directory (concat dir fromdir))
 816           (setq to-file (concat dir fromdir))
 817           (when (or (not (file-exists-p to-file))
 818                     (eq gnus-uu-be-dangerous t)
 819                     (and gnus-uu-be-dangerous
 820                          (gnus-y-or-n-p (format "%s exists; overwrite? "
 821                                                 to-file))))
 822             (copy-file file to-file t t)))))
 823     (gnus-message 5 "Saved %d file%s" len (if (= len 1) "" "s"))))
 824
 825 ;; Functions for saving and possibly digesting articles without
 826 ;; any decoding.
 827
 828 ;; Function called by gnus-uu-grab-articles to treat each article.
 829 (defun gnus-uu-save-article (buffer in-state)
 830   (cond
 831    (gnus-uu-save-separate-articles
 832     (with-current-buffer buffer
 833       (let ((coding-system-for-write mm-text-coding-system))
 834         (gnus-write-buffer
 835          (concat gnus-uu-saved-article-name gnus-current-article)))
 836       (cond ((eq in-state 'first) (list gnus-uu-saved-article-name 'begin))
 837             ((eq in-state 'first-and-last) (list gnus-uu-saved-article-name
 838                                                  'begin 'end))
 839             ((eq in-state 'last) (list 'end))
 840             (t (list 'middle)))))
 841    ((not gnus-uu-save-in-digest)
 842     (with-current-buffer buffer
 843       (write-region (point-min) (point-max) gnus-uu-saved-article-name t)
 844       (cond ((eq in-state 'first) (list gnus-uu-saved-article-name 'begin))
 845             ((eq in-state 'first-and-last) (list gnus-uu-saved-article-name
 846                                                  'begin 'end))
 847             ((eq in-state 'last) (list 'end))
 848             (t (list 'middle)))))
 849    (t
 850     (let ((header (gnus-summary-article-header)))
 851       (push (cons (mail-header-from header)
 852                   (mail-header-subject header))
 853             gnus-uu-digest-from-subject))
 854     (let ((name (file-name-nondirectory gnus-uu-saved-article-name))
 855           beg subj headers headline sorthead body end-string state)
 856       (if (or (eq in-state 'first)
 857               (eq in-state 'first-and-last))
 858           (progn
 859             (setq state (list 'begin))
 860             (with-current-buffer (gnus-get-buffer-create "*gnus-uu-body*")
 861               (erase-buffer))
 862             (with-current-buffer (gnus-get-buffer-create "*gnus-uu-pre*")
 863               (erase-buffer)
 864               (insert (format
 865                        "Date: %s\nFrom: %s\nSubject: %s Digest\n\n"
 866                        (message-make-date) name name))
 867               (when (and message-forward-as-mime gnus-uu-digest-buffer)
 868                 (insert
 869                  "<#mml type=message/rfc822>\nSubject: Topics\n\n<#/mml>\n")
 870                 (forward-line -1))
 871               (insert "Topics:\n")))
 872         (when (not (eq in-state 'end))
 873           (setq state (list 'middle))))
 874       (with-current-buffer "*gnus-uu-body*"
 875         (goto-char (setq beg (point-max)))
 876         (save-excursion
 877           (save-restriction
 878             (set-buffer buffer)
 879             (let (buffer-read-only)
 880               (set-text-properties (point-min) (point-max) nil)
 881               ;; These two are necessary for XEmacs 19.12 fascism.
 882               (put-text-property (point-min) (point-max) 'invisible nil)
 883               (put-text-property (point-min) (point-max) 'intangible nil))
 884             (when (and message-forward-as-mime
 885                        message-forward-show-mml
 886                        gnus-uu-digest-buffer)
 887               (mm-enable-multibyte)
 888               (mime-to-mml))
 889             (goto-char (point-min))
 890             (search-forward "\n\n")
 891             (unless (and message-forward-as-mime gnus-uu-digest-buffer)
 892               ;; Quote all 30-dash lines.
 893               (save-excursion
 894                 (while (re-search-forward "^-" nil t)
 895                   (beginning-of-line)
 896                   (delete-char 1)
 897                   (insert "- "))))
 898             (setq body (buffer-substring (1- (point)) (point-max)))
 899             (narrow-to-region (point-min) (point))
 900             (if (not (setq headers gnus-uu-digest-headers))
 901                 (setq sorthead (buffer-string))
 902               (while headers
 903                 (setq headline (car headers))
 904                 (setq headers (cdr headers))
 905                 (goto-char (point-min))
 906                 (while (re-search-forward headline nil t)
 907                   (setq sorthead
 908                         (concat sorthead
 909                                 (buffer-substring
 910                                  (match-beginning 0)
 911                                  (or (and (re-search-forward "^[^ \t]" nil t)
 912                                           (1- (point)))
 913                                      (progn (forward-line 1) (point)))))))))
 914             (widen)))
 915         (if (and message-forward-as-mime gnus-uu-digest-buffer)
 916           (if message-forward-show-mml
 917               (progn
 918                 (insert "\n<#mml type=message/rfc822>\n")
 919                 (insert sorthead) (goto-char (point-max))
 920                 (insert body) (goto-char (point-max))
 921                 (insert "\n<#/mml>\n"))
 922             (let ((buf (mml-generate-new-buffer " *mml*")))
 923               (with-current-buffer buf
 924                 (insert sorthead)
 925                 (goto-char (point-min))
 926                 (when (re-search-forward "^Subject: \\(.*\\)$" nil t)
 927                   (setq subj (buffer-substring (match-beginning 1)
 928                                                (match-end 1))))
 929                 (goto-char (point-max))
 930                 (insert body))
 931               (insert "\n<#part type=message/rfc822"
 932                       " buffer=\"" (buffer-name buf) "\">\n")))
 933           (insert sorthead) (goto-char (point-max))
 934           (insert body) (goto-char (point-max))
 935           (insert (concat "\n" (make-string 30 ?-) "\n\n")))
 936         (goto-char beg)
 937         (when (re-search-forward "^Subject: \\(.*\\)$" nil t)
 938           (setq subj (buffer-substring (match-beginning 1) (match-end 1))))
 939         (when subj
 940           (with-current-buffer "*gnus-uu-pre*"
 941             (insert (format "   %s\n" subj)))))
 942       (when (or (eq in-state 'last)
 943                 (eq in-state 'first-and-last))
 944         (if (and message-forward-as-mime gnus-uu-digest-buffer)
 945             (with-current-buffer gnus-uu-digest-buffer
 946               (erase-buffer)
 947               (insert-buffer-substring "*gnus-uu-pre*")
 948               (goto-char (point-max))
 949               (insert-buffer-substring "*gnus-uu-body*"))
 950           (with-current-buffer "*gnus-uu-pre*"
 951             (insert (format "\n\n%s\n\n" (make-string 70 ?-)))
 952             (if gnus-uu-digest-buffer
 953                 (with-current-buffer gnus-uu-digest-buffer
 954                   (erase-buffer)
 955                   (insert-buffer-substring "*gnus-uu-pre*"))
 956               (let ((coding-system-for-write mm-text-coding-system))
 957                 (gnus-write-buffer gnus-uu-saved-article-name))))
 958           (with-current-buffer "*gnus-uu-body*"
 959             (goto-char (point-max))
 960             (insert
 961              (concat (setq end-string (format "End of %s Digest" name))
 962                      "\n"))
 963             (insert (concat (make-string (length end-string) ?*) "\n"))
 964             (if gnus-uu-digest-buffer
 965                 (with-current-buffer gnus-uu-digest-buffer
 966                   (goto-char (point-max))
 967                   (insert-buffer-substring "*gnus-uu-body*"))
 968               (let ((coding-system-for-write mm-text-coding-system)
 969                     (file-name-coding-system nnmail-pathname-coding-system))
 970                 (write-region
 971                  (point-min) (point-max) gnus-uu-saved-article-name t)))))
 972         (gnus-kill-buffer "*gnus-uu-pre*")
 973         (gnus-kill-buffer "*gnus-uu-body*")
 974         (push 'end state))
 975       (if (memq 'begin state)
 976           (cons gnus-uu-saved-article-name state)
 977         state)))))
 978
 979 ;; Binhex treatment - not very advanced.
 980
 981 ;; FIXME? This duplicates binhex-begin-line etc from binhex.el.
 982 (defvar gnus-uu-binhex-body-line
 983   "^[^:]...............................................................$")
 984 (defvar gnus-uu-binhex-begin-line
 985   "^:...............................................................$")
 986 (defvar gnus-uu-binhex-end-line
 987   ":$")
 988
 989 (defun gnus-uu-binhex-article (buffer in-state)
 990   (let (state start-char)
 991     (with-current-buffer buffer
 992       (widen)
 993       (goto-char (point-min))
 994       (when (not (re-search-forward gnus-uu-binhex-begin-line nil t))
 995         (when (not (re-search-forward gnus-uu-binhex-body-line nil t))
 996           (setq state (list 'wrong-type))))
 997
 998       (if (memq 'wrong-type state)
 999           ()
1000         (beginning-of-line)
1001         (setq start-char (point))
1002         (if (looking-at gnus-uu-binhex-begin-line)
1003             (progn
1004               (setq state (list 'begin))
1005               (write-region (point-min) (point-min)
1006                             gnus-uu-binhex-article-name))
1007           (setq state (list 'middle)))
1008         (goto-char (point-max))
1009         (re-search-backward (concat gnus-uu-binhex-body-line "\\|"
1010                                     gnus-uu-binhex-end-line)
1011                             nil t)
1012         (when (looking-at gnus-uu-binhex-end-line)
1013           (setq state (if (memq 'begin state)
1014                           (cons 'end state)
1015                         (list 'end))))
1016         (beginning-of-line)
1017         (forward-line 1)
1018         (when (file-exists-p gnus-uu-binhex-article-name)
1019           (mm-append-to-file start-char (point) gnus-uu-binhex-article-name))))
1020     (if (memq 'begin state)
1021         (cons gnus-uu-binhex-article-name state)
1022       state)))
1023
1024 ;; yEnc
1025
1026 (defun gnus-uu-yenc-article (buffer in-state)
1027   (with-current-buffer gnus-original-article-buffer
1028     (widen)
1029     (let ((file-name (yenc-extract-filename))
1030           state start-char)
1031       (when (not file-name)
1032         (setq state (list 'wrong-type)))
1033
1034       (if (memq 'wrong-type state)
1035           ()
1036         (when (yenc-first-part-p)
1037           (setq gnus-uu-yenc-article-name
1038                 (expand-file-name file-name gnus-uu-work-dir))
1039           (push 'begin state))
1040         (when (yenc-last-part-p)
1041           (push 'end state))
1042         (unless state
1043           (push 'middle state))
1044         (mm-with-unibyte-buffer
1045           (insert-buffer-substring gnus-original-article-buffer)
1046           (yenc-decode-region (point-min) (point-max))
1047           (when (and (member 'begin state)
1048                      (file-exists-p gnus-uu-yenc-article-name))
1049             (delete-file gnus-uu-yenc-article-name))
1050           (mm-append-to-file (point-min) (point-max)
1051                              gnus-uu-yenc-article-name)))
1052       (if (memq 'begin state)
1053           (cons file-name state)
1054         state))))
1055
1056 ;; PostScript
1057
1058 (defun gnus-uu-decode-postscript-article (process-buffer in-state)
1059   (let ((state (list 'ok))
1060         start-char end-char file-name)
1061     (with-current-buffer process-buffer
1062       (goto-char (point-min))
1063       (if (not (re-search-forward gnus-uu-postscript-begin-string nil t))
1064           (setq state (list 'wrong-type))
1065         (beginning-of-line)
1066         (setq start-char (point))
1067         (if (not (re-search-forward gnus-uu-postscript-end-string nil t))
1068             (setq state (list 'wrong-type))
1069           (setq end-char (point))
1070           (set-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name))
1071           (insert-buffer-substring process-buffer start-char end-char)
1072           (setq file-name (concat gnus-uu-work-dir
1073                                   (cdr gnus-article-current) ".ps"))
1074           (write-region (point-min) (point-max) file-name)
1075           (setq state (list file-name 'begin 'end)))))
1076     state))
1077
1078
1079 ;; Find actions.
1080
1081 (defun gnus-uu-get-actions (files)
1082   (let ((ofiles files)
1083         action name)
1084     (while files
1085       (setq name (cdr (assq 'name (car files))))
1086       (and
1087        (setq action (gnus-uu-get-action name))
1088        (setcar files (nconc (list (if (string= action "gnus-uu-archive")
1089                                       (cons 'action "file")
1090                                     (cons 'action action))
1091                                   (cons 'execute (gnus-uu-command
1092                                                   action name)))
1093                             (car files))))
1094       (setq files (cdr files)))
1095     ofiles))
1096
1097 (defun gnus-uu-get-action (file-name)
1098   (let (action)
1099     (setq action
1100           (gnus-uu-choose-action
1101            file-name
1102            (append
1103             gnus-uu-user-view-rules
1104             (if gnus-uu-ignore-default-view-rules
1105                 nil
1106               gnus-uu-default-view-rules)
1107             gnus-uu-user-view-rules-end)))
1108     (when (and (not (string= (or action "") "gnus-uu-archive"))
1109                gnus-uu-view-with-metamail)
1110       (when (setq action
1111                   (gnus-uu-choose-action file-name gnus-uu-ext-to-mime-list))
1112         (setq action (format "metamail -d -b -c \"%s\"" action))))
1113     action))
1114
1115
1116 ;; Functions for treating subjects and collecting series.
1117
1118 (defun gnus-uu-reginize-string (string)
1119   ;; Takes a string and puts a \ in front of every special character;
1120   ;; replaces the last thing that looks like "2/3" with "[0-9]+/3"
1121   ;; or, if it can't find something like that, tries "2 of 3", then
1122   ;; finally just replaces the next to last number with "[0-9]+".
1123   (with-current-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name)
1124     (buffer-disable-undo)
1125     (erase-buffer)
1126     (insert (regexp-quote string))
1127
1128     (setq case-fold-search nil)
1129
1130     (end-of-line)
1131     (if (re-search-backward "\\([^0-9]\\)[0-9]+/\\([0-9]+\\)" nil t)
1132         (replace-match "\\1[0-9]+/\\2")
1133
1134       (end-of-line)
1135       (if (re-search-backward "\\([^0-9]\\)[0-9]+[ \t]*of[ \t]*\\([0-9]+\\)"
1136                               nil t)
1137           (replace-match "\\1[0-9]+ of \\2")
1138
1139         (end-of-line)
1140         (if (re-search-backward "\\([^0-9]\\)[0-9]+\\([^0-9]+\\)[0-9]+"
1141                                 nil t)
1142             (replace-match "\\1[0-9]+\\2[0-9]+" t nil nil nil))))
1143
1144     (goto-char (point-min))
1145     (while (re-search-forward "[ \t]+" nil t)
1146       (replace-match "[ \t]+" t t))
1147
1148     (buffer-string)))
1149
1150 (defun gnus-uu-get-list-of-articles (n)
1151   ;; If N is non-nil, the article numbers of the N next articles
1152   ;; will be returned.
1153   ;; If any articles have been marked as processable, they will be
1154   ;; returned.
1155   ;; Failing that, articles that have subjects that are part of the
1156   ;; same "series" as the current will be returned.
1157   (let (articles)
1158     (cond
1159      (n
1160       (setq n (prefix-numeric-value n))
1161       (let ((backward (< n 0))
1162             (n (abs n)))
1163         (save-excursion
1164           (while (and (> n 0)
1165                       (push (gnus-summary-article-number)
1166                             articles)
1167                       (gnus-summary-search-forward nil nil backward))
1168             (setq n (1- n))))
1169         (nreverse articles)))
1170      (gnus-newsgroup-processable
1171       (reverse gnus-newsgroup-processable))
1172      (t
1173       (gnus-uu-find-articles-matching)))))
1174
1175 (defun gnus-uu-string< (l1 l2)
1176   (string< (car l1) (car l2)))
1177
1178 (defun gnus-uu-find-articles-matching
1179   (&optional subject only-unread do-not-translate)
1180   ;; Finds all articles that matches the regexp SUBJECT.  If it is
1181   ;; nil, the current article name will be used.  If ONLY-UNREAD is
1182   ;; non-nil, only unread articles are chosen.  If DO-NOT-TRANSLATE is
1183   ;; non-nil, article names are not equalized before sorting.
1184   (let ((subject (or subject
1185                      (gnus-uu-reginize-string (gnus-summary-article-subject))))
1186         list-of-subjects)
1187     (save-excursion
1188       (when subject
1189         ;; Collect all subjects matching subject.
1190         (let ((case-fold-search t)
1191               (data gnus-newsgroup-data)
1192               subj mark d)
1193           (while data
1194             (setq d (pop data))
1195             (and (not (gnus-data-pseudo-p d))
1196                  (or (not only-unread)
1197                      (= (setq mark (gnus-data-mark d))
1198                         gnus-unread-mark)
1199                      (= mark gnus-ticked-mark)
1200                      (= mark gnus-dormant-mark))
1201                  (setq subj (mail-header-subject (gnus-data-header d)))
1202                  (string-match subject subj)
1203                  (push (cons subj (gnus-data-number d))
1204                        list-of-subjects))))
1205
1206         ;; Expand numbers, sort, and return the list of article
1207         ;; numbers.
1208         (mapcar 'cdr
1209                 (sort (gnus-uu-expand-numbers
1210                        list-of-subjects
1211                        (not do-not-translate))
1212                       'gnus-uu-string<))))))
1213
1214 (defun gnus-uu-expand-numbers (string-list &optional translate)
1215   ;; Takes a list of strings and "expands" all numbers in all the
1216   ;; strings.  That is, this function makes all numbers equal length by
1217   ;; prepending lots of zeroes before each number.  This is to ease later
1218   ;; sorting to find out what sequence the articles are supposed to be
1219   ;; decoded in.  Returns the list of expanded strings.
1220   (let ((out-list string-list)
1221         string)
1222     (with-current-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name)
1223       (buffer-disable-undo)
1224       (while string-list
1225         (erase-buffer)
1226         (insert (caar string-list))
1227         ;; Translate multiple spaces to one space.
1228         (goto-char (point-min))
1229         (while (re-search-forward "[ \t]+" nil t)
1230           (replace-match " "))
1231         ;; Translate all characters to "a".
1232         (goto-char (point-min))
1233         (when translate
1234           (while (re-search-forward "[A-Za-z]" nil t)
1235             (replace-match "a" t t)))
1236         ;; Expand numbers.
1237         (goto-char (point-min))
1238         (while (re-search-forward "[0-9]+" nil t)
1239           (ignore-errors
1240             (replace-match
1241              (format "%06d"
1242                      (string-to-number (buffer-substring
1243                                      (match-beginning 0) (match-end 0)))))))
1244         (setq string (buffer-substring (point-min) (point-max)))
1245         (setcar (car string-list) string)
1246         (setq string-list (cdr string-list))))
1247     out-list))
1248
1249
1250 ;; `gnus-uu-grab-articles' is the general multi-article treatment
1251 ;; function.  It takes a list of articles to be grabbed and a function
1252 ;; to apply to each article.
1253 ;;
1254 ;; The function to be called should take two parameters.  The first
1255 ;; parameter is the article buffer.  The function should leave the
1256 ;; result, if any, in this buffer.  Most treatment functions will just
1257 ;; generate files...
1258 ;;
1259 ;; The second parameter is the state of the list of articles, and can
1260 ;; have four values: `first', `middle', `last' and `first-and-last'.
1261 ;;
1262 ;; The function should return a list.  The list may contain the
1263 ;; following symbols:
1264 ;; `error' if an error occurred
1265 ;; `begin' if the beginning of an encoded file has been received
1266 ;;   If the list returned contains a `begin', the first element of
1267 ;;   the list *must* be a string with the file name of the decoded
1268 ;;   file.
1269 ;; `end' if the end of an encoded file has been received
1270 ;; `middle' if the article was a body part of an encoded file
1271 ;; `wrong-type' if the article was not a part of an encoded file
1272 ;; `ok', which can be used everything is ok
1273
1274 (defvar gnus-uu-has-been-grabbed nil)
1275
1276 (defun gnus-uu-unmark-list-of-grabbed (&optional dont-unmark-last-article)
1277   (let (art)
1278     (if (not (and gnus-uu-has-been-grabbed
1279                   gnus-uu-unmark-articles-not-decoded))
1280         ()
1281       (when dont-unmark-last-article
1282         (setq art (car gnus-uu-has-been-grabbed))
1283         (setq gnus-uu-has-been-grabbed (cdr gnus-uu-has-been-grabbed)))
1284       (while gnus-uu-has-been-grabbed
1285         (gnus-summary-tick-article (car gnus-uu-has-been-grabbed) t)
1286         (setq gnus-uu-has-been-grabbed (cdr gnus-uu-has-been-grabbed)))
1287       (when dont-unmark-last-article
1288         (setq gnus-uu-has-been-grabbed (list art))))))
1289
1290 ;; This function takes a list of articles and a function to apply to
1291 ;; each article grabbed.
1292 ;;
1293 ;; This function returns a list of files decoded if the grabbing and
1294 ;; the process-function has been successful and nil otherwise.
1295 (defun gnus-uu-grab-articles (articles process-function
1296                                        &optional sloppy limit no-errors)
1297   (require 'gnus-async)
1298   (let ((state 'first)
1299         (gnus-asynchronous nil)
1300         (gnus-inhibit-treatment t)
1301         has-been-begin article result-file result-files process-state
1302         gnus-summary-display-article-function
1303         gnus-article-prepare-hook gnus-display-mime-function
1304         article-series files)
1305
1306     (while (and articles
1307                 (not (memq 'error process-state))
1308                 (or sloppy
1309                     (not (memq 'end process-state))))
1310
1311       (setq article (pop articles))
1312       (when (vectorp (gnus-summary-article-header article))
1313         (push article article-series)
1314
1315         (unless articles
1316           (if (eq state 'first)
1317               (setq state 'first-and-last)
1318             (setq state 'last)))
1319
1320         (let ((part (gnus-uu-part-number article)))
1321           (gnus-message 6 "Getting article %d%s..."
1322                         article (if (string= part "") "" (concat ", " part))))
1323         (gnus-summary-display-article article)
1324
1325         ;; Push the article to the processing function.
1326         (with-current-buffer gnus-original-article-buffer
1327           (let ((buffer-read-only nil))
1328             (with-current-buffer gnus-summary-buffer
1329               (setq process-state
1330                     (funcall process-function
1331                              gnus-original-article-buffer state)))))
1332
1333         (gnus-summary-remove-process-mark article)
1334
1335         ;; If this is the beginning of a decoded file, we push it
1336         ;; on to a list.
1337         (when (or (memq 'begin process-state)
1338                   (and (or (eq state 'first)
1339                            (eq state 'first-and-last))
1340                        (memq 'ok process-state)))
1341           (when has-been-begin
1342             ;; If there is a `result-file' here, that means that the
1343             ;; file was unsuccessfully decoded, so we delete it.
1344             (when (and result-file
1345                        (file-exists-p result-file)
1346                        (not gnus-uu-be-dangerous)
1347                        (or (eq gnus-uu-be-dangerous t)
1348                            (gnus-y-or-n-p
1349                             (format "Delete unsuccessfully decoded file %s? "
1350                                     result-file))))
1351               (delete-file result-file)))
1352           (when (memq 'begin process-state)
1353             (setq result-file (car process-state)))
1354           (setq has-been-begin t))
1355
1356         ;; Check whether we have decoded one complete file.
1357         (when (memq 'end process-state)
1358           (setq article-series nil)
1359           (setq has-been-begin nil)
1360           (if (stringp result-file)
1361               (setq files (list result-file))
1362             (setq files result-file))
1363           (setq result-file (car files))
1364           (while files
1365             (push (list (cons 'name (pop files))
1366                         (cons 'article article))
1367                   result-files))
1368           ;; Allow user-defined functions to be run on this file.
1369           (when gnus-uu-grabbed-file-functions
1370             (let ((funcs gnus-uu-grabbed-file-functions))
1371               (unless (listp funcs)
1372                 (setq funcs (list funcs)))
1373               (while funcs
1374                 (funcall (pop funcs) result-file))))
1375           (setq result-file nil)
1376           ;; Check whether we have decoded enough articles.
1377           (and limit (= (length result-files) limit)
1378                (setq articles nil)))
1379
1380         ;; If this is the last article to be decoded, and
1381         ;; we still haven't reached the end, then we delete
1382         ;; the partially decoded file.
1383         (and (or (eq state 'last) (eq state 'first-and-last))
1384              (not (memq 'end process-state))
1385              result-file
1386              (file-exists-p result-file)
1387              (not gnus-uu-be-dangerous)
1388              (or (eq gnus-uu-be-dangerous t)
1389                  (gnus-y-or-n-p
1390                   (format "Delete incomplete file %s? " result-file)))
1391              (delete-file result-file))
1392
1393         ;; If this was a file of the wrong sort, then
1394         (when (and (or (memq 'wrong-type process-state)
1395                        (memq 'error process-state))
1396                    gnus-uu-unmark-articles-not-decoded)
1397           (gnus-summary-tick-article article t))
1398
1399         ;; Set the new series state.
1400         (if (and (not has-been-begin)
1401                  (not sloppy)
1402                  (or (memq 'end process-state)
1403                      (memq 'middle process-state)))
1404             (progn
1405               (setq process-state (list 'error))
1406               (gnus-message 2 "No begin part at the beginning")
1407               (sleep-for 2))
1408           (setq state 'middle))))
1409
1410       ;; When there are no result-files, then something must be wrong.
1411     (if result-files
1412         (message "")
1413       (cond
1414        ((not has-been-begin)
1415         (gnus-message 2 "Wrong type file"))
1416        ((memq 'error process-state)
1417         (gnus-message 2 "An error occurred during decoding"))
1418        ((not (or (memq 'ok process-state)
1419                  (memq 'end process-state)))
1420         (gnus-message 2 "End of articles reached before end of file")))
1421       ;; Make unsuccessfully decoded articles unread.
1422       (when gnus-uu-unmark-articles-not-decoded
1423         (while article-series
1424           (gnus-summary-tick-article (pop article-series) t))))
1425
1426     ;; The original article buffer is hosed, shoot it down.
1427     (gnus-kill-buffer gnus-original-article-buffer)
1428     (setq gnus-current-article nil)
1429     result-files))
1430
1431 (defun gnus-uu-grab-view (file)
1432   "View FILE using the gnus-uu methods."
1433   (let ((action (gnus-uu-get-action file)))
1434     (gnus-execute-command
1435      (if (string-match "%" action)
1436          (format action file)
1437        (concat action " " file))
1438      (eq gnus-view-pseudos 'not-confirm))))
1439
1440 (defun gnus-uu-grab-move (file)
1441   "Move FILE to somewhere."
1442   (when gnus-uu-default-dir
1443     (let ((to-file (concat (file-name-as-directory gnus-uu-default-dir)
1444                            (file-name-nondirectory file))))
1445       (rename-file file to-file)
1446       (unless (file-exists-p file)
1447         (make-symbolic-link to-file file)))))
1448
1449 (defun gnus-uu-part-number (article)
1450   (let* ((header (gnus-summary-article-header article))
1451          (subject (and header (mail-header-subject header)))
1452          (part nil))
1453     (if subject
1454         (while (string-match "[0-9]+/[0-9]+\\|[0-9]+[ \t]+of[ \t]+[0-9]+"
1455                              subject)
1456           (setq part (match-string 0 subject))
1457           (setq subject (substring subject (match-end 0)))))
1458     (or part
1459         (while (string-match "[0-9]+[^0-9]+[0-9]+" subject)
1460           (setq part (match-string 0 subject))
1461           (setq subject (substring subject (match-end 0)))))
1462     (or part "")))
1463
1464 (defun gnus-uu-uudecode-sentinel (process event)
1465   (delete-process (get-process process)))
1466
1467 (defun gnus-uu-uustrip-article (process-buffer in-state)
1468   ;; Uudecodes a file asynchronously.
1469   (with-current-buffer process-buffer
1470     (let ((state (list 'wrong-type))
1471           process-connection-type case-fold-search buffer-read-only
1472           files start-char)
1473       (goto-char (point-min))
1474
1475       ;; Deal with ^M at the end of the lines.
1476       (when gnus-uu-kill-carriage-return
1477         (save-excursion
1478           (while (search-forward "\r" nil t)
1479             (delete-char -1))))
1480
1481       (while (or (re-search-forward gnus-uu-begin-string nil t)
1482                  (re-search-forward gnus-uu-body-line nil t))
1483         (setq state (list 'ok))
1484         ;; Ok, we are at the first uucoded line.
1485         (beginning-of-line)
1486         (setq start-char (point))
1487
1488         (if (not (looking-at gnus-uu-begin-string))
1489             (setq state (list 'middle))
1490           ;; This is the beginning of a uuencoded article.
1491           ;; We replace certain characters that could make things messy.
1492           (setq gnus-uu-file-name
1493                 (gnus-map-function
1494                  mm-file-name-rewrite-functions
1495                  (file-name-nondirectory (match-string 1))))
1496           (replace-match (concat "begin 644 " gnus-uu-file-name) t t)
1497
1498           ;; Remove any non gnus-uu-body-line right after start.
1499           (forward-line 1)
1500           (while (and (not (eobp))
1501                       (not (looking-at gnus-uu-body-line)))
1502             (gnus-delete-line))
1503
1504           ;; If a process is running, we kill it.
1505           (when (and gnus-uu-uudecode-process
1506                      (memq (process-status gnus-uu-uudecode-process)
1507                            '(run stop)))
1508             (delete-process gnus-uu-uudecode-process)
1509             (gnus-uu-unmark-list-of-grabbed t))
1510
1511           ;; Start a new uudecoding process.
1512           (let ((cdir default-directory))
1513             (unwind-protect
1514                 (progn
1515                   (cd gnus-uu-work-dir)
1516                   (setq gnus-uu-uudecode-process
1517                         (start-process
1518                          "*uudecode*"
1519                          (gnus-get-buffer-create gnus-uu-output-buffer-name)
1520                          shell-file-name shell-command-switch
1521                          (format "cd %s %s uudecode" gnus-uu-work-dir
1522                                  gnus-shell-command-separator))))
1523               (cd cdir)))
1524           (set-process-sentinel
1525            gnus-uu-uudecode-process 'gnus-uu-uudecode-sentinel)
1526           (setq state (list 'begin))
1527           (push (concat gnus-uu-work-dir gnus-uu-file-name) files))
1528
1529         ;; We look for the end of the thing to be decoded.
1530         (if (re-search-forward gnus-uu-end-string nil t)
1531             (push 'end state)
1532           (goto-char (point-max))
1533           (re-search-backward gnus-uu-body-line nil t))
1534
1535         (forward-line 1)
1536
1537         (when gnus-uu-uudecode-process
1538           (when (memq (process-status gnus-uu-uudecode-process) '(run stop))
1539             ;; Try to correct mishandled uucode.
1540             (when gnus-uu-correct-stripped-uucode
1541               (gnus-uu-check-correct-stripped-uucode start-char (point)))
1542             (gnus-run-hooks 'gnus-uu-pre-uudecode-hook)
1543
1544             ;; Send the text to the process.
1545             (condition-case nil
1546                 (process-send-region
1547                  gnus-uu-uudecode-process start-char (point))
1548               (error
1549                (progn
1550                  (delete-process gnus-uu-uudecode-process)
1551                  (gnus-message 2 "gnus-uu: Couldn't uudecode")
1552                  (setq state (list 'wrong-type)))))
1553
1554             (if (memq 'end state)
1555                 (progn
1556                   ;; Send an EOF, just in case.
1557                   (ignore-errors
1558                     (process-send-eof gnus-uu-uudecode-process))
1559                   (while (memq (process-status gnus-uu-uudecode-process)
1560                                '(open run))
1561                     (accept-process-output gnus-uu-uudecode-process 1)))
1562               (when (or (not gnus-uu-uudecode-process)
1563                         (not (memq (process-status gnus-uu-uudecode-process)
1564                                    '(run stop))))
1565                 (setq state (list 'wrong-type)))))))
1566
1567       (if (memq 'begin state)
1568           (cons (if (= (length files) 1) (car files) files) state)
1569         state))))
1570
1571 (defvar gnus-uu-unshar-warning
1572   "*** WARNING ***
1573
1574 Shell archives are an archaic method of bundling files for distribution
1575 across computer networks.  During the unpacking process, arbitrary commands
1576 are executed on your system, and all kinds of nasty things can happen.
1577 Please examine the archive very carefully before you instruct Emacs to
1578 unpack it.  You can browse the archive buffer using \\[scroll-other-window].
1579
1580 If you are unsure what to do, please answer \"no\"."
1581   "Text of warning message displayed by `gnus-uu-unshar-article'.
1582 Make sure that this text consists only of few text lines.  Otherwise,
1583 Gnus might fail to display all of it.")
1584
1585
1586 ;; This function is used by `gnus-uu-grab-articles' to treat
1587 ;; a shared article.
1588 (defun gnus-uu-unshar-article (process-buffer in-state)
1589   (let ((state (list 'ok))
1590         start-char)
1591     (with-current-buffer process-buffer
1592       (goto-char (point-min))
1593       (if (not (re-search-forward gnus-uu-shar-begin-string nil t))
1594           (setq state (list 'wrong-type))
1595         (save-window-excursion
1596           (save-excursion
1597             (switch-to-buffer (current-buffer))
1598             (delete-other-windows)
1599             (let ((buffer (get-buffer-create (generate-new-buffer-name
1600                                               "*Warning*"))))
1601               (unless
1602                   (unwind-protect
1603                       (with-current-buffer buffer
1604                         (insert (substitute-command-keys
1605                                  gnus-uu-unshar-warning))
1606                         (goto-char (point-min))
1607                         (display-buffer buffer)
1608                         (yes-or-no-p "This is a shell archive, unshar it? "))
1609                     (kill-buffer buffer))
1610                 (setq state (list 'error))))))
1611         (unless (memq 'error state)
1612           (beginning-of-line)
1613           (setq start-char (point))
1614           (call-process-region
1615            start-char (point-max) shell-file-name nil
1616            (gnus-get-buffer-create gnus-uu-output-buffer-name) nil
1617            shell-command-switch
1618            (concat "cd " gnus-uu-work-dir " "
1619                    gnus-shell-command-separator  " sh")))))
1620     state))
1621
1622 ;; `gnus-uu-choose-action' chooses what action to perform given the name
1623 ;; and `gnus-uu-file-action-list'.  Returns either nil if no action is
1624 ;; found, or the name of the command to run if such a rule is found.
1625 (defun gnus-uu-choose-action (file-name file-action-list &optional no-ignore)
1626   (let ((action-list (copy-sequence file-action-list))
1627         (case-fold-search t)
1628         rule action)
1629     (and
1630      (unless no-ignore
1631        (and (not
1632              (and gnus-uu-ignore-files-by-name
1633                   (string-match gnus-uu-ignore-files-by-name file-name)))
1634             (not
1635              (and gnus-uu-ignore-files-by-type
1636                   (string-match gnus-uu-ignore-files-by-type
1637                                 (or (gnus-uu-choose-action
1638                                      file-name gnus-uu-ext-to-mime-list t)
1639                                     ""))))))
1640      (while (not (or (eq action-list ()) action))
1641        (setq rule (car action-list))
1642        (setq action-list (cdr action-list))
1643        (when (string-match (car rule) file-name)
1644          (setq action (cadr rule)))))
1645     action))
1646
1647 (defun gnus-uu-treat-archive (file-path)
1648   ;; Unpacks an archive.  Returns t if unpacking is successful.
1649   (let ((did-unpack t)
1650         action command dir)
1651     (setq action (gnus-uu-choose-action
1652                   file-path (append gnus-uu-user-archive-rules
1653                                     (if gnus-uu-ignore-default-archive-rules
1654                                         nil
1655                                       gnus-uu-default-archive-rules))))
1656
1657     (when (not action)
1658       (error "No unpackers for the file %s" file-path))
1659
1660     (string-match "/[^/]*$" file-path)
1661     (setq dir (substring file-path 0 (match-beginning 0)))
1662
1663     (when (member action gnus-uu-destructive-archivers)
1664       (copy-file file-path (concat file-path "~") t))
1665
1666     (setq command (format "cd %s ; %s" dir (gnus-uu-command action file-path)))
1667
1668     (with-current-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name)
1669       (erase-buffer))
1670
1671     (gnus-message 5 "Unpacking: %s..." (gnus-uu-command action file-path))
1672
1673     (if (eq 0 (call-process shell-file-name nil
1674                            (gnus-get-buffer-create gnus-uu-output-buffer-name)
1675                            nil shell-command-switch command))
1676         (message "")
1677       (gnus-message 2 "Error during unpacking of archive")
1678       (setq did-unpack nil))
1679
1680     (when (member action gnus-uu-destructive-archivers)
1681       (rename-file (concat file-path "~") file-path t))
1682
1683     did-unpack))
1684
1685 (defun gnus-uu-dir-files (dir)
1686   (let ((dirs (directory-files dir t "[^/][^\\.][^\\.]?$"))
1687         files file)
1688     (while dirs
1689       (if (file-directory-p (setq file (car dirs)))
1690           (setq files (append files (gnus-uu-dir-files file)))
1691         (push file files))
1692       (setq dirs (cdr dirs)))
1693     files))
1694
1695 (defun gnus-uu-unpack-files (files &optional ignore)
1696   ;; Go through FILES and look for files to unpack.
1697   (let* ((totfiles (gnus-uu-ls-r gnus-uu-work-dir))
1698          (ofiles files)
1699          file did-unpack)
1700     (while files
1701       (setq file (cdr (assq 'name (car files))))
1702       (when (and (not (member file ignore))
1703                  (equal (gnus-uu-get-action (file-name-nondirectory file))
1704                         "gnus-uu-archive"))
1705         (push file did-unpack)
1706         (unless (gnus-uu-treat-archive file)
1707           (gnus-message 2 "Error during unpacking of %s" file))
1708         (let* ((newfiles (gnus-uu-ls-r gnus-uu-work-dir))
1709                (nfiles newfiles))
1710           (while nfiles
1711             (unless (member (car nfiles) totfiles)
1712               (push (list (cons 'name (car nfiles))
1713                           (cons 'original file))
1714                     ofiles))
1715             (setq nfiles (cdr nfiles)))
1716           (setq totfiles newfiles)))
1717       (setq files (cdr files)))
1718     (if did-unpack
1719         (gnus-uu-unpack-files ofiles (append did-unpack ignore))
1720       ofiles)))
1721
1722 (defun gnus-uu-ls-r (dir)
1723   (let* ((files (gnus-uu-directory-files dir t))
1724          (ofiles files))
1725     (while files
1726       (when (file-directory-p (car files))
1727         (setq ofiles (delete (car files) ofiles))
1728         (setq ofiles (append ofiles (gnus-uu-ls-r (car files)))))
1729       (setq files (cdr files)))
1730     ofiles))
1731
1732 ;; Various stuff
1733
1734 (defun gnus-uu-directory-files (dir &optional full)
1735   (let (files out file)
1736     (setq files (directory-files dir full))
1737     (while files
1738       (setq file (car files))
1739       (setq files (cdr files))
1740       (unless (member (file-name-nondirectory file) '("." ".."))
1741         (push file out)))
1742     (setq out (nreverse out))
1743     out))
1744
1745 (defun gnus-uu-check-correct-stripped-uucode (start end)
1746   (save-excursion
1747     (let (found beg length)
1748       (unless gnus-uu-correct-stripped-uucode
1749         (goto-char start)
1750
1751         (if (re-search-forward " \\|`" end t)
1752             (progn
1753               (goto-char start)
1754               (while (not (eobp))
1755                 (progn
1756                   (when (looking-at "\n")
1757                     (replace-match ""))
1758                   (forward-line 1))))
1759
1760           (while (not (eobp))
1761             (unless (looking-at (concat gnus-uu-begin-string "\\|"
1762                                         gnus-uu-end-string))
1763               (when (not found)
1764                 (setq length (- (point-at-eol) (point-at-bol))))
1765               (setq found t)
1766               (beginning-of-line)
1767               (setq beg (point))
1768               (end-of-line)
1769               (unless (= length (- (point) beg))
1770                 (insert (make-string (- length (- (point) beg)) ? ))))
1771             (forward-line 1)))))))
1772
1773 (defvar gnus-uu-tmp-alist nil)
1774
1775 (defun gnus-uu-initialize (&optional scan)
1776   (let (entry)
1777     (if (and (not scan)
1778              (when (setq entry (assoc gnus-newsgroup-name gnus-uu-tmp-alist))
1779                (if (file-exists-p (cdr entry))
1780                    (setq gnus-uu-work-dir (cdr entry))
1781                  (setq gnus-uu-tmp-alist (delq entry gnus-uu-tmp-alist))
1782                  nil)))
1783         t
1784       (setq gnus-uu-tmp-dir (file-name-as-directory
1785                              (expand-file-name gnus-uu-tmp-dir)))
1786       (if (not (file-directory-p gnus-uu-tmp-dir))
1787           (error "Temp directory %s doesn't exist" gnus-uu-tmp-dir)
1788         (when (not (file-writable-p gnus-uu-tmp-dir))
1789           (error "Temp directory %s can't be written to"
1790                  gnus-uu-tmp-dir)))
1791
1792       (setq gnus-uu-work-dir
1793             (mm-make-temp-file (concat gnus-uu-tmp-dir "gnus") 'dir))
1794       (gnus-set-file-modes gnus-uu-work-dir 448)
1795       (setq gnus-uu-work-dir (file-name-as-directory gnus-uu-work-dir))
1796       (push (cons gnus-newsgroup-name gnus-uu-work-dir)
1797             gnus-uu-tmp-alist))))
1798
1799
1800 ;; Kills the temporary uu buffers, kills any processes, etc.
1801 (defun gnus-uu-clean-up ()
1802   (let (buf)
1803     (and gnus-uu-uudecode-process
1804          (memq (process-status (or gnus-uu-uudecode-process "nevair"))
1805                '(stop run))
1806          (delete-process gnus-uu-uudecode-process))
1807     (when (setq buf (get-buffer gnus-uu-output-buffer-name))
1808       (kill-buffer buf))))
1809
1810 ;; Inputs an action and a filename and returns a full command, making sure
1811 ;; that the filename will be treated as a single argument when the shell
1812 ;; executes the command.
1813 (defun gnus-uu-command (action file)
1814   (let ((quoted-file (shell-quote-argument file)))
1815     (if (string-match "%s" action)
1816         (format action quoted-file)
1817       (concat action " " quoted-file))))
1818
1819 (defun gnus-uu-delete-work-dir (&optional dir)
1820   "Delete recursively all files and directories under `gnus-uu-work-dir'."
1821   (if dir
1822       (gnus-message 7 "Deleting directory %s..." dir)
1823     (setq dir gnus-uu-work-dir))
1824   (when (and dir
1825              (file-exists-p dir))
1826     (let ((files (directory-files dir t nil t))
1827           file)
1828       (while (setq file (pop files))
1829         (unless (member (file-name-nondirectory file) '("." ".."))
1830           (if (file-directory-p file)
1831               (gnus-uu-delete-work-dir file)
1832             (gnus-message 9 "Deleting file %s..." file)
1833             (condition-case err
1834                 (delete-file file)
1835               (error (gnus-message 3 "Deleting file %s failed... %s" file err))))))
1836       (condition-case err
1837           (delete-directory dir)
1838         (error (gnus-message 3 "Deleting directory %s failed... %s" file err))))
1839     (gnus-message 7 "")))
1840
1841 ;; Initializing
1842
1843 (add-hook 'gnus-summary-prepare-exit-hook 'gnus-uu-clean-up)
1844 (add-hook 'gnus-summary-prepare-exit-hook 'gnus-uu-delete-work-dir)
1845
1846 \f
1847
1848 ;;;
1849 ;;; uuencoded posting
1850 ;;;
1851
1852 ;; Any function that is to be used as and encoding method will take two
1853 ;; parameters: PATH-NAME and FILE-NAME.  (E.g. "/home/gaga/spiral.jpg"
1854 ;; and "spiral.jpg", respectively.) The function should return nil if
1855 ;; the encoding wasn't successful.
1856 (defcustom gnus-uu-post-encode-method 'gnus-uu-post-encode-uuencode
1857   "Function used for encoding binary files.
1858 There are three functions supplied with gnus-uu for encoding files:
1859 `gnus-uu-post-encode-uuencode', which does straight uuencoding;
1860 `gnus-uu-post-encode-mime', which encodes with base64 and adds MIME
1861 headers; and `gnus-uu-post-encode-mime-uuencode', which encodes with
1862 uuencode and adds MIME headers."
1863   :group 'gnus-extract-post
1864   :type '(radio (function-item gnus-uu-post-encode-uuencode)
1865                 (function-item gnus-uu-post-encode-mime)
1866                 (function-item gnus-uu-post-encode-mime-uuencode)
1867                 (function :tag "Other")))
1868
1869 (defcustom gnus-uu-post-include-before-composing nil
1870   "Non-nil means that gnus-uu will ask for a file to encode before you compose the article.
1871 If this variable is t, you can either include an encoded file with
1872 \\[gnus-uu-post-insert-binary-in-article] or have one included for you when you post the article."
1873   :group 'gnus-extract-post
1874   :type 'boolean)
1875
1876 (defcustom gnus-uu-post-length 990
1877   "Maximum length of an article.
1878 The encoded file will be split into how many articles it takes to
1879 post the entire file."
1880   :group 'gnus-extract-post
1881   :type 'integer)
1882
1883 (defcustom gnus-uu-post-threaded nil
1884   "Non-nil means that gnus-uu will post the encoded file in a thread.
1885 This may not be smart, as no other decoder I have seen are able to
1886 follow threads when collecting uuencoded articles.  (Well, I have seen
1887 one package that does that - gnus-uu, but somehow, I don't think that
1888 counts...)  The default is nil."
1889   :group 'gnus-extract-post
1890   :type 'boolean)
1891
1892 (defcustom gnus-uu-post-separate-description t
1893   "Non-nil means that the description will be posted in a separate article.
1894 The first article will typically be numbered (0/x).  If this variable
1895 is nil, the description the user enters will be included at the
1896 beginning of the first article, which will be numbered (1/x).  Default
1897 is t."
1898   :group 'gnus-extract-post
1899   :type 'boolean)
1900
1901 (defvar gnus-uu-post-binary-separator "--binary follows this line--")
1902 (defvar gnus-uu-post-message-id nil)
1903 (defvar gnus-uu-post-inserted-file-name nil)
1904 (defvar gnus-uu-winconf-post-news nil)
1905
1906 (defun gnus-uu-post-news ()
1907   "Compose an article and post an encoded file."
1908   (interactive)
1909   (setq gnus-uu-post-inserted-file-name nil)
1910   (setq gnus-uu-winconf-post-news (current-window-configuration))
1911
1912   (gnus-summary-post-news)
1913
1914   (let ((map (make-sparse-keymap)))
1915     (set-keymap-parent map (current-local-map))
1916     (use-local-map map))
1917   ;;(local-set-key "\C-c\C-c" 'gnus-summary-edit-article-done)
1918   (local-set-key "\C-c\C-c" 'gnus-uu-post-news-inews)
1919   (local-set-key "\C-c\C-s" 'gnus-uu-post-news-inews)
1920   (local-set-key "\C-c\C-i" 'gnus-uu-post-insert-binary-in-article)
1921
1922   (when gnus-uu-post-include-before-composing
1923     (save-excursion (setq gnus-uu-post-inserted-file-name
1924                           (gnus-uu-post-insert-binary)))))
1925
1926 (defun gnus-uu-post-insert-binary-in-article ()
1927   "Inserts an encoded file in the buffer.
1928 The user will be asked for a file name."
1929   (interactive)
1930   (save-excursion
1931     (setq gnus-uu-post-inserted-file-name (gnus-uu-post-insert-binary))))
1932
1933 ;; Encodes with uuencode and substitutes all spaces with backticks.
1934 (defun gnus-uu-post-encode-uuencode (path file-name)
1935   (when (gnus-uu-post-encode-file "uuencode" path file-name)
1936     (goto-char (point-min))
1937     (forward-line 1)
1938     (while (search-forward " " nil t)
1939       (replace-match "`"))
1940     t))
1941
1942 ;; Encodes with uuencode and adds MIME headers.
1943 (defun gnus-uu-post-encode-mime-uuencode (path file-name)
1944   (when (gnus-uu-post-encode-uuencode path file-name)
1945     (gnus-uu-post-make-mime file-name "x-uue")
1946     t))
1947
1948 ;; Encodes with base64 and adds MIME headers
1949 (defun gnus-uu-post-encode-mime (path file-name)
1950   (when (eq 0 (call-process shell-file-name nil t nil shell-command-switch
1951                             (format "%s %s -o %s" "mmencode" path file-name)))
1952     (gnus-uu-post-make-mime file-name "base64")
1953     t))
1954
1955 ;; Adds MIME headers.
1956 (defun gnus-uu-post-make-mime (file-name encoding)
1957   (goto-char (point-min))
1958   (insert (format "Content-Type: %s; name=\"%s\"\n"
1959                   (gnus-uu-choose-action file-name gnus-uu-ext-to-mime-list)
1960                   file-name))
1961   (insert (format "Content-Transfer-Encoding: %s\n\n" encoding))
1962   (save-restriction
1963     (set-buffer gnus-message-buffer)
1964     (goto-char (point-min))
1965     (re-search-forward (concat "^" (regexp-quote mail-header-separator) "$"))
1966     (forward-line -1)
1967     (narrow-to-region (point-min) (point))
1968     (unless (mail-fetch-field "mime-version")
1969       (widen)
1970       (insert "MIME-Version: 1.0\n"))
1971     (widen)))
1972
1973 ;; Encodes a file PATH with COMMAND, leaving the result in the
1974 ;; current buffer.
1975 (defun gnus-uu-post-encode-file (command path file-name)
1976   (eq 0 (call-process shell-file-name nil t nil shell-command-switch
1977                       (format "%s %s %s" command path file-name))))
1978
1979 (defun gnus-uu-post-news-inews ()
1980   "Posts the composed news article and encoded file.
1981 If no file has been included, the user will be asked for a file."
1982   (interactive)
1983
1984   (let (file-name)
1985
1986     (if gnus-uu-post-inserted-file-name
1987         (setq file-name gnus-uu-post-inserted-file-name)
1988       (setq file-name (gnus-uu-post-insert-binary)))
1989
1990     (gnus-uu-post-encoded file-name gnus-uu-post-threaded))
1991   (setq gnus-uu-post-inserted-file-name nil)
1992   (when gnus-uu-winconf-post-news
1993     (set-window-configuration gnus-uu-winconf-post-news)))
1994
1995 ;; Asks for a file to encode, encodes it and inserts the result in
1996 ;; the current buffer.  Returns the file name the user gave.
1997 (defun gnus-uu-post-insert-binary ()
1998   (let ((uuencode-buffer-name "*uuencode buffer*")
1999         file-path uubuf file-name)
2000
2001     (setq file-path (read-file-name
2002                      "What file do you want to encode? "))
2003     (when (not (file-exists-p file-path))
2004       (error "%s: No such file" file-path))
2005
2006     (goto-char (point-max))
2007     (insert (format "\n%s\n" gnus-uu-post-binary-separator))
2008
2009     ;; #### Unix-specific?
2010     (when (string-match "^~/" file-path)
2011       (setq file-path (concat "$HOME" (substring file-path 1))))
2012     ;; #### Unix-specific?
2013     (if (string-match "/[^/]*$" file-path)
2014         (setq file-name (substring file-path (1+ (match-beginning 0))))
2015       (setq file-name file-path))
2016
2017     (unwind-protect
2018         (if (with-current-buffer
2019                 (setq uubuf (gnus-get-buffer-create uuencode-buffer-name))
2020               (erase-buffer)
2021               (funcall gnus-uu-post-encode-method file-path file-name))
2022             (insert-buffer-substring uubuf)
2023           (error "Encoding unsuccessful"))
2024       (kill-buffer uubuf))
2025     file-name))
2026
2027 ;; Posts the article and all of the encoded file.
2028 (defun gnus-uu-post-encoded (file-name &optional threaded)
2029   (let ((send-buffer-name "*uuencode send buffer*")
2030         (encoded-buffer-name "*encoded buffer*")
2031         (top-string "[ cut here %s (%s %d/%d) %s gnus-uu ]")
2032         (separator (concat mail-header-separator "\n\n"))
2033         uubuf length parts header i end beg
2034         beg-line minlen post-buf whole-len beg-binary end-binary)
2035
2036     (setq post-buf (current-buffer))
2037
2038     (goto-char (point-min))
2039     (when (not (re-search-forward
2040                 (if gnus-uu-post-separate-description
2041                     (concat "^" (regexp-quote gnus-uu-post-binary-separator)
2042                             "$")
2043                   (concat "^" (regexp-quote mail-header-separator) "$"))
2044                 nil t))
2045       (error "Internal error: No binary/header separator"))
2046     (beginning-of-line)
2047     (forward-line 1)
2048     (setq beg-binary (point))
2049     (setq end-binary (point-max))
2050
2051     (with-current-buffer
2052         (setq uubuf (gnus-get-buffer-create encoded-buffer-name))
2053       (erase-buffer)
2054       (insert-buffer-substring post-buf beg-binary end-binary)
2055       (goto-char (point-min))
2056       (setq length (count-lines (point-min) (point-max)))
2057       (setq parts (/ length gnus-uu-post-length))
2058       (unless (< (% length gnus-uu-post-length) 4)
2059         (incf parts)))
2060
2061     (when gnus-uu-post-separate-description
2062       (forward-line -1))
2063     (delete-region (point) (point-max))
2064
2065     (goto-char (point-min))
2066     (re-search-forward
2067      (concat "^" (regexp-quote mail-header-separator) "$") nil t)
2068     (setq header (buffer-substring (point-min) (point-at-bol)))
2069
2070     (goto-char (point-min))
2071     (when gnus-uu-post-separate-description
2072       (when (re-search-forward "^Subject: " nil t)
2073         (end-of-line)
2074         (insert (format " (0/%d)" parts)))
2075       (save-excursion
2076         (message-send))
2077       (setq gnus-uu-post-message-id (message-fetch-field "message-id")))
2078
2079     (save-excursion
2080       (setq i 1)
2081       (setq beg 1)
2082       (while (not (> i parts))
2083         (set-buffer (gnus-get-buffer-create send-buffer-name))
2084         (erase-buffer)
2085         (insert header)
2086         (when (and threaded gnus-uu-post-message-id)
2087           (insert "References: " gnus-uu-post-message-id "\n"))
2088         (insert separator)
2089         (setq whole-len
2090               (- 62 (length (format top-string "" file-name i parts ""))))
2091         (when (> 1 (setq minlen (/ whole-len 2)))
2092           (setq minlen 1))
2093         (setq
2094          beg-line
2095          (format top-string
2096                  (make-string minlen ?-)
2097                  file-name i parts
2098                  (make-string
2099                   (if (= 0 (% whole-len 2)) (1- minlen) minlen) ?-)))
2100
2101         (goto-char (point-min))
2102         (when (re-search-forward "^Subject: " nil t)
2103           (end-of-line)
2104           (insert (format " (%d/%d)" i parts)))
2105
2106         (goto-char (point-max))
2107         (with-current-buffer uubuf
2108           (goto-char beg)
2109           (if (= i parts)
2110               (goto-char (point-max))
2111             (forward-line gnus-uu-post-length))
2112           (when (and (= (1+ i) parts) (< (count-lines (point) (point-max)) 4))
2113             (forward-line -4))
2114           (setq end (point)))
2115         (insert-buffer-substring uubuf beg end)
2116         (insert beg-line "\n")
2117         (setq beg end)
2118         (incf i)
2119         (goto-char (point-min))
2120         (re-search-forward
2121          (concat "^" (regexp-quote mail-header-separator) "$") nil t)
2122         (beginning-of-line)
2123         (forward-line 2)
2124         (when (re-search-forward
2125                (concat "^" (regexp-quote gnus-uu-post-binary-separator) "$")
2126                nil t)
2127           (replace-match "")
2128           (forward-line 1))
2129         (insert beg-line)
2130         (insert "\n")
2131         (let (message-sent-message-via)
2132           (save-excursion
2133             (message-send))
2134           (setq gnus-uu-post-message-id
2135                 (concat (message-fetch-field "references") " "
2136                         (message-fetch-field "message-id"))))))
2137
2138     (gnus-kill-buffer send-buffer-name)
2139     (gnus-kill-buffer encoded-buffer-name)
2140
2141     (when (not gnus-uu-post-separate-description)
2142       (set-buffer-modified-p nil)
2143       (bury-buffer))))
2144
2145 (provide 'gnus-uu)
2146
2147 ;;; gnus-uu.el ends here