lisp/gnus/gnus-uu.el

   1 ;;; gnus-uu.el --- extract (uu)encoded files in Gnus
   2
   3 ;; Copyright (C) 1985-1987, 1993-1998, 2000-2011 Free Software Foundation, Inc.
   4
   5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
   6 ;; Created: 2 Oct 1993
   7 ;; Keyword: news
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software: you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation, either version 3 of the License, or
  14 ;; (at your option) any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 ;;; Commentary:
  25
  26 ;;; Code:
  27
  28 (eval-when-compile (require 'cl))
  29
  30 (require 'gnus)
  31 (require 'gnus-art)
  32 (require 'message)
  33 (require 'gnus-msg)
  34 (require 'mm-decode)
  35 (require 'yenc)
  36
  37 (defgroup gnus-extract nil
  38   "Extracting encoded files."
  39   :prefix "gnus-uu-"
  40   :group 'gnus)
  41
  42 (defgroup gnus-extract-view nil
  43   "Viewwing extracted files."
  44   :group 'gnus-extract)
  45
  46 (defgroup gnus-extract-archive nil
  47   "Extracting encoded archives."
  48   :group 'gnus-extract)
  49
  50 (defgroup gnus-extract-post nil
  51   "Extracting encoded archives."
  52   :prefix "gnus-uu-post"
  53   :group 'gnus-extract)
  54
  55 ;; Default viewing action rules
  56
  57 (defcustom gnus-uu-default-view-rules
  58   '(("\\.te?xt$\\|\\.doc$\\|read.*me\\|\\.c?$\\|\\.h$\\|\\.bat$\\|\\.asm$\\|makefile" "cat %s | sed 's/\r$//'")
  59     ("\\.pas$" "cat %s | sed 's/\r$//'")
  60     ("\\.[1-9]$" "groff -mandoc -Tascii %s | sed s/\b.//g")
  61     ("\\.\\(jpe?g\\|gif\\|tiff?\\|p[pgb]m\\|xwd\\|xbm\\|pcx\\)$" "display")
  62     ("\\.tga$" "tgatoppm %s | ee -")
  63     ("\\.\\(wav\\|aiff\\|hcom\\|u[blw]\\|s[bfw]\\|voc\\|smp\\)$"
  64      "sox -v .5 %s -t .au -u - > /dev/audio")
  65     ("\\.au$" "cat %s > /dev/audio")
  66     ("\\.midi?$" "playmidi -f")
  67     ("\\.mod$" "str32")
  68     ("\\.ps$" "ghostview")
  69     ("\\.dvi$" "xdvi")
  70     ("\\.html$" "xmosaic")
  71     ("\\.mpe?g$" "mpeg_play")
  72     ("\\.\\(flc\\|fli\\|rle\\|iff\\|pfx\\|avi\\|sme\\|rpza\\|dl\\|qt\\|rsrc\\|mov\\)$" "xanim")
  73     ("\\.\\(tar\\|arj\\|zip\\|zoo\\|arc\\|gz\\|Z\\|lzh\\|ar\\|lha\\)$"
  74      "gnus-uu-archive"))
  75   "*Default actions to be taken when the user asks to view a file.
  76 To change the behavior, you can either edit this variable or set
  77 `gnus-uu-user-view-rules' to something useful.
  78
  79 For example:
  80
  81 To make gnus-uu use 'xli' to display JPEG and GIF files, put the
  82 following in your .emacs file:
  83
  84   (setq gnus-uu-user-view-rules '((\"jpg$\\\\|gif$\" \"xli\")))
  85
  86 Both these variables are lists of lists with two string elements.  The
  87 first string is a regular expression.  If the file name matches this
  88 regular expression, the command in the second string is executed with
  89 the file as an argument.
  90
  91 If the command string contains \"%s\", the file name will be inserted
  92 at that point in the command string.  If there's no \"%s\" in the
  93 command string, the file name will be appended to the command string
  94 before executing.
  95
  96 There are several user variables to tailor the behavior of gnus-uu to
  97 your needs.  First we have `gnus-uu-user-view-rules', which is the
  98 variable gnus-uu first consults when trying to decide how to view a
  99 file.  If this variable contains no matches, gnus-uu examines the
 100 default rule variable provided in this package.  If gnus-uu finds no
 101 match here, it uses `gnus-uu-user-view-rules-end' to try to make a
 102 match."
 103   :group 'gnus-extract-view
 104   :type '(repeat (group regexp (string :tag "Command"))))
 105
 106 (defcustom gnus-uu-user-view-rules nil
 107   "What actions are to be taken to view a file.
 108 See the documentation on the `gnus-uu-default-view-rules' variable for
 109 details."
 110   :group 'gnus-extract-view
 111   :type '(repeat (group regexp (string :tag "Command"))))
 112
 113 (defcustom gnus-uu-user-view-rules-end
 114   '(("" "file"))
 115   "*What actions are to be taken if no rule matched the file name.
 116 See the documentation on the `gnus-uu-default-view-rules' variable for
 117 details."
 118   :group 'gnus-extract-view
 119   :type '(repeat (group regexp (string :tag "Command"))))
 120
 121 ;; Default unpacking commands
 122
 123 (defcustom gnus-uu-default-archive-rules
 124   '(("\\.tar$" "tar xf")
 125     ("\\.zip$" "unzip -o")
 126     ("\\.ar$" "ar x")
 127     ("\\.arj$" "unarj x")
 128     ("\\.zoo$" "zoo -e")
 129     ("\\.\\(lzh\\|lha\\)$" "lha x")
 130     ("\\.Z$" "uncompress")
 131     ("\\.gz$" "gunzip")
 132     ("\\.arc$" "arc -x"))
 133   "*See `gnus-uu-user-archive-rules'."
 134   :group 'gnus-extract-archive
 135   :type '(repeat (group regexp (string :tag "Command"))))
 136
 137 (defvar gnus-uu-destructive-archivers
 138   (list "uncompress" "gunzip"))
 139
 140 (defcustom gnus-uu-user-archive-rules nil
 141   "A list that can be set to override the default archive unpacking commands.
 142 To use, for instance, 'untar' to unpack tar files and 'zip -x' to
 143 unpack zip files, say the following:
 144   (setq gnus-uu-user-archive-rules
 145     '((\"\\\\.tar$\" \"untar\")
 146       (\"\\\\.zip$\" \"zip -x\")))"
 147   :group 'gnus-extract-archive
 148   :type '(repeat (group regexp (string :tag "Command"))))
 149
 150 (defcustom gnus-uu-ignore-files-by-name nil
 151   "*A regular expression saying what files should not be viewed based on name.
 152 If, for instance, you want gnus-uu to ignore all .au and .wav files,
 153 you could say something like
 154
 155   (setq gnus-uu-ignore-files-by-name \"\\\\.au$\\\\|\\\\.wav$\")
 156
 157 Note that this variable can be used in conjunction with the
 158 `gnus-uu-ignore-files-by-type' variable."
 159   :group 'gnus-extract
 160   :type '(choice (const :tag "off" nil)
 161                  (regexp :format "%v")))
 162
 163 (defcustom gnus-uu-ignore-files-by-type nil
 164   "*A regular expression saying what files that shouldn't be viewed, based on MIME file type.
 165 If, for instance, you want gnus-uu to ignore all audio files and all mpegs,
 166 you could say something like
 167
 168   (setq gnus-uu-ignore-files-by-type \"audio/\\\\|video/mpeg\")
 169
 170 Note that this variable can be used in conjunction with the
 171 `gnus-uu-ignore-files-by-name' variable."
 172   :group 'gnus-extract
 173   :type '(choice (const :tag "off" nil)
 174                  (regexp :format "%v")))
 175
 176 ;; Pseudo-MIME support
 177
 178 (defconst gnus-uu-ext-to-mime-list
 179   '(("\\.gif$" "image/gif")
 180     ("\\.jpe?g$" "image/jpeg")
 181     ("\\.tiff?$" "image/tiff")
 182     ("\\.xwd$" "image/xwd")
 183     ("\\.pbm$" "image/pbm")
 184     ("\\.pgm$" "image/pgm")
 185     ("\\.ppm$" "image/ppm")
 186     ("\\.xbm$" "image/xbm")
 187     ("\\.pcx$" "image/pcx")
 188     ("\\.tga$" "image/tga")
 189     ("\\.ps$" "image/postscript")
 190     ("\\.fli$" "video/fli")
 191     ("\\.wav$" "audio/wav")
 192     ("\\.aiff$" "audio/aiff")
 193     ("\\.hcom$" "audio/hcom")
 194     ("\\.voc$" "audio/voc")
 195     ("\\.smp$" "audio/smp")
 196     ("\\.mod$" "audio/mod")
 197     ("\\.dvi$" "image/dvi")
 198     ("\\.mpe?g$" "video/mpeg")
 199     ("\\.au$" "audio/basic")
 200     ("\\.\\(te?xt\\|doc\\|c\\|h\\)$" "text/plain")
 201     ("\\.\\(c\\|h\\)$" "text/source")
 202     ("read.*me" "text/plain")
 203     ("\\.html$" "text/html")
 204     ("\\.bat$" "text/bat")
 205     ("\\.[1-6]$" "text/man")
 206     ("\\.flc$" "video/flc")
 207     ("\\.rle$" "video/rle")
 208     ("\\.pfx$" "video/pfx")
 209     ("\\.avi$" "video/avi")
 210     ("\\.sme$" "video/sme")
 211     ("\\.rpza$" "video/prza")
 212     ("\\.dl$" "video/dl")
 213     ("\\.qt$" "video/qt")
 214     ("\\.rsrc$" "video/rsrc")
 215     ("\\..*$" "unknown/unknown")))
 216
 217 ;; Various variables users may set
 218
 219 (defcustom gnus-uu-tmp-dir
 220   (cond ((fboundp 'temp-directory) (temp-directory))
 221         ((boundp 'temporary-file-directory) temporary-file-directory)
 222         ("/tmp/"))
 223   "*Variable saying where gnus-uu is to do its work.
 224 Default is \"/tmp/\"."
 225   :group 'gnus-extract
 226   :type 'directory)
 227
 228 (defcustom gnus-uu-do-not-unpack-archives nil
 229   "*Non-nil means that gnus-uu won't peek inside archives looking for files to display.
 230 Default is nil."
 231   :group 'gnus-extract-archive
 232   :type 'boolean)
 233
 234 (defcustom gnus-uu-ignore-default-view-rules nil
 235   "*Non-nil means that gnus-uu will ignore the default viewing rules.
 236 Only the user viewing rules will be consulted.  Default is nil."
 237   :group 'gnus-extract-view
 238   :type 'boolean)
 239
 240 (defcustom gnus-uu-grabbed-file-functions nil
 241   "Functions run on each file after successful decoding.
 242 They will be called with the name of the file as the argument.
 243 Likely functions you can use in this list are `gnus-uu-grab-view'
 244 and `gnus-uu-grab-move'."
 245   :group 'gnus-extract
 246   :options '(gnus-uu-grab-view gnus-uu-grab-move)
 247   :type 'hook)
 248
 249 (defcustom gnus-uu-ignore-default-archive-rules nil
 250   "*Non-nil means that gnus-uu will ignore the default archive unpacking commands.
 251 Only the user unpacking commands will be consulted.  Default is nil."
 252   :group 'gnus-extract-archive
 253   :type 'boolean)
 254
 255 (defcustom gnus-uu-kill-carriage-return t
 256   "*Non-nil means that gnus-uu will strip all carriage returns from articles.
 257 Default is t."
 258   :group 'gnus-extract
 259   :type 'boolean)
 260
 261 (defcustom gnus-uu-view-with-metamail nil
 262   "*Non-nil means that files will be viewed with metamail.
 263 The gnus-uu viewing functions will be ignored and gnus-uu will try
 264 to guess at a content-type based on file name suffixes.  Default
 265 it nil."
 266   :group 'gnus-extract
 267   :type 'boolean)
 268
 269 (defcustom gnus-uu-unmark-articles-not-decoded nil
 270   "*Non-nil means that gnus-uu will mark articles that were unsuccessfully decoded as unread.
 271 Default is nil."
 272   :group 'gnus-extract
 273   :type 'boolean)
 274
 275 (defcustom gnus-uu-correct-stripped-uucode nil
 276   "*Non-nil means that gnus-uu will *try* to fix uuencoded files that have had trailing spaces deleted.
 277 Default is nil."
 278   :group 'gnus-extract
 279   :type 'boolean)
 280
 281 (defcustom gnus-uu-save-in-digest nil
 282   "*Non-nil means that gnus-uu, when asked to save without decoding, will save in digests.
 283 If this variable is nil, gnus-uu will just save everything in a
 284 file without any embellishments.  The digesting almost conforms to RFC1153 -
 285 no easy way to specify any meaningful volume and issue numbers were found,
 286 so I simply dropped them."
 287   :group 'gnus-extract
 288   :type 'boolean)
 289
 290 (defcustom gnus-uu-pre-uudecode-hook nil
 291   "Hook run before sending a message to uudecode."
 292   :group 'gnus-extract
 293   :type 'hook)
 294
 295 (defcustom gnus-uu-digest-headers
 296   '("^Date:" "^From:" "^To:" "^Cc:" "^Subject:" "^Message-ID:" "^Keywords:"
 297     "^Summary:" "^References:" "^Content-Type:" "^Content-Transfer-Encoding:"
 298     "^MIME-Version:" "^Content-Disposition:" "^Content-Description:"
 299     "^Content-ID:")
 300   "*List of regexps to match headers included in digested messages.
 301 The headers will be included in the sequence they are matched.  If nil
 302 include all headers."
 303   :group 'gnus-extract
 304   :type '(repeat regexp))
 305
 306 (defcustom gnus-uu-save-separate-articles nil
 307   "*Non-nil means that gnus-uu will save articles in separate files."
 308   :group 'gnus-extract
 309   :type 'boolean)
 310
 311 (defcustom gnus-uu-be-dangerous 'ask
 312   "*Specifies what to do if unusual situations arise during decoding.
 313 If nil, be as conservative as possible.  If t, ignore things that
 314 didn't work, and overwrite existing files.  Otherwise, ask each time."
 315   :group 'gnus-extract
 316   :type '(choice (const :tag "conservative" nil)
 317                  (const :tag "ask" ask)
 318                  (const :tag "liberal" t)))
 319
 320 ;; Internal variables
 321
 322 (defvar gnus-uu-saved-article-name nil)
 323
 324 (defvar gnus-uu-begin-string "^begin[ \t]+0?[0-7][0-7][0-7][ \t]+\\(.*\\)$")
 325 (defvar gnus-uu-end-string "^end[ \t]*$")
 326
 327 (defvar gnus-uu-body-line "^M")
 328 (let ((i 61))
 329   (while (> (setq i (1- i)) 0)
 330     (setq gnus-uu-body-line (concat gnus-uu-body-line "[^a-z]")))
 331   (setq gnus-uu-body-line (concat gnus-uu-body-line ".?$")))
 332
 333 ;"^M.............................................................?$"
 334
 335 (defvar gnus-uu-shar-begin-string "^#! */bin/sh")
 336
 337 (defvar gnus-uu-shar-name-marker
 338   "begin 0?[0-7][0-7][0-7][ \t]+\\(\\(\\w\\|[.\\:]\\)*\\b\\)")
 339
 340 (defvar gnus-uu-postscript-begin-string "^%!PS-")
 341 (defvar gnus-uu-postscript-end-string "^%%EOF$")
 342
 343 (defvar gnus-uu-file-name nil)
 344 (defvar gnus-uu-uudecode-process nil)
 345 (defvar gnus-uu-binhex-article-name nil)
 346 (defvar gnus-uu-yenc-article-name nil)
 347
 348 (defvar gnus-uu-work-dir nil)
 349
 350 (defvar gnus-uu-output-buffer-name " *Gnus UU Output*")
 351
 352 (defvar gnus-uu-default-dir gnus-article-save-directory)
 353 (defvar gnus-uu-digest-from-subject nil)
 354 (defvar gnus-uu-digest-buffer nil)
 355
 356 ;; Commands.
 357
 358 (defun gnus-uu-decode-uu (&optional n)
 359   "Uudecodes the current article."
 360   (interactive "P")
 361   (gnus-uu-decode-with-method 'gnus-uu-uustrip-article n))
 362
 363 (defun gnus-uu-decode-uu-and-save (n dir)
 364   "Decodes and saves the resulting file."
 365   (interactive
 366    (list current-prefix-arg
 367          (file-name-as-directory
 368           (read-file-name "Uudecode and save in dir: "
 369                           gnus-uu-default-dir
 370                           gnus-uu-default-dir t))))
 371   (gnus-uu-decode-with-method 'gnus-uu-uustrip-article n dir nil nil t))
 372
 373 (defun gnus-uu-decode-unshar (&optional n)
 374   "Unshars the current article."
 375   (interactive "P")
 376   (gnus-uu-decode-with-method 'gnus-uu-unshar-article n nil nil 'scan t))
 377
 378 (defun gnus-uu-decode-unshar-and-save (n dir)
 379   "Unshars and saves the current article."
 380   (interactive
 381    (list current-prefix-arg
 382          (file-name-as-directory
 383           (read-file-name "Unshar and save in dir: "
 384                           gnus-uu-default-dir
 385                           gnus-uu-default-dir t))))
 386   (gnus-uu-decode-with-method 'gnus-uu-unshar-article n dir nil 'scan t))
 387
 388 (defun gnus-uu-decode-save (n file)
 389   "Saves the current article."
 390   (interactive
 391    (list current-prefix-arg
 392          (read-file-name
 393           (if gnus-uu-save-separate-articles
 394               "Save articles in dir: "
 395             "Save articles in file: ")
 396           gnus-uu-default-dir
 397           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-file-name "Unbinhex and save in dir: "
 407                           gnus-uu-default-dir
 408                           gnus-uu-default-dir))))
 409   (setq gnus-uu-binhex-article-name
 410         (mm-make-temp-file (expand-file-name "binhex" gnus-uu-work-dir)))
 411   (gnus-uu-decode-with-method 'gnus-uu-binhex-article n dir))
 412
 413 (defun gnus-uu-decode-yenc (n dir)
 414   "Decode the yEnc-encoded current article."
 415   (interactive
 416    (list current-prefix-arg
 417          (file-name-as-directory
 418           (read-file-name "yEnc decode and save in dir: "
 419                           gnus-uu-default-dir
 420                           gnus-uu-default-dir))))
 421   (setq gnus-uu-yenc-article-name nil)
 422   (gnus-uu-decode-with-method 'gnus-uu-yenc-article n dir nil t))
 423
 424 (defun gnus-uu-decode-uu-view (&optional n)
 425   "Uudecodes and views the current article."
 426   (interactive "P")
 427   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 428     (gnus-uu-decode-uu n)))
 429
 430 (defun gnus-uu-decode-uu-and-save-view (n dir)
 431   "Decodes, views and saves the resulting file."
 432   (interactive
 433    (list current-prefix-arg
 434          (read-file-name "Uudecode, view and save in dir: "
 435                          gnus-uu-default-dir
 436                          gnus-uu-default-dir t)))
 437   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 438     (gnus-uu-decode-uu-and-save n dir)))
 439
 440 (defun gnus-uu-decode-unshar-view (&optional n)
 441   "Unshars and views the current article."
 442   (interactive "P")
 443   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 444     (gnus-uu-decode-unshar n)))
 445
 446 (defun gnus-uu-decode-unshar-and-save-view (n dir)
 447   "Unshars and saves the current article."
 448   (interactive
 449    (list current-prefix-arg
 450          (read-file-name "Unshar, view and save in dir: "
 451                          gnus-uu-default-dir
 452                          gnus-uu-default-dir t)))
 453   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 454     (gnus-uu-decode-unshar-and-save n dir)))
 455
 456 (defun gnus-uu-decode-save-view (n file)
 457   "Saves and views the current article."
 458   (interactive
 459    (list current-prefix-arg
 460          (read-file-name  (if gnus-uu-save-separate-articles
 461                               "Save articles is dir: "
 462                             "Save articles in file: ")
 463                           gnus-uu-default-dir gnus-uu-default-dir)))
 464   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 465     (gnus-uu-decode-save n file)))
 466
 467 (defun gnus-uu-decode-binhex-view (n file)
 468   "Unbinhexes and views the current article."
 469   (interactive
 470    (list current-prefix-arg
 471          (read-file-name "Unbinhex, view and save in dir: "
 472                          gnus-uu-default-dir gnus-uu-default-dir)))
 473   (setq gnus-uu-binhex-article-name
 474         (mm-make-temp-file (expand-file-name "binhex" gnus-uu-work-dir)))
 475   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 476     (gnus-uu-decode-binhex n file)))
 477
 478
 479 ;; Digest and forward articles
 480
 481 (defun gnus-uu-digest-mail-forward (&optional n post)
 482   "Digests and forwards all articles in this series."
 483   (interactive "P")
 484   (let ((gnus-uu-save-in-digest t)
 485         (file (mm-make-temp-file (nnheader-concat gnus-uu-tmp-dir "forward")))
 486         (message-forward-as-mime message-forward-as-mime)
 487         (mail-parse-charset gnus-newsgroup-charset)
 488         (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
 489         gnus-uu-digest-buffer subject from)
 490     (if (and n (not (numberp n)))
 491         (setq message-forward-as-mime (not message-forward-as-mime)
 492               n nil))
 493     (let ((gnus-article-reply (gnus-summary-work-articles n)))
 494       (when (and (not n)
 495                  (= (length gnus-article-reply) 1))
 496         ;; The case where neither a number of articles nor a region is
 497         ;; specified.
 498         (gnus-summary-top-thread)
 499         (setq gnus-article-reply (nreverse (gnus-uu-find-articles-matching))))
 500       (gnus-setup-message 'forward
 501         (setq gnus-uu-digest-from-subject nil)
 502         (setq gnus-uu-digest-buffer
 503               (gnus-get-buffer-create " *gnus-uu-forward*"))
 504         ;; Specify articles to be forwarded.  Note that they should be
 505         ;; reversed; see `gnus-uu-get-list-of-articles'.
 506         (let ((gnus-newsgroup-processable (reverse gnus-article-reply)))
 507           (gnus-uu-decode-save n file)
 508           (setq gnus-article-reply gnus-newsgroup-processable))
 509         ;; Restore the value of `gnus-newsgroup-processable' to which
 510         ;; it should be set when it is not `let'-bound.
 511         (setq gnus-newsgroup-processable (reverse gnus-article-reply))
 512         (switch-to-buffer gnus-uu-digest-buffer)
 513         (let ((fs gnus-uu-digest-from-subject))
 514           (when fs
 515             (setq from (caar fs)
 516                   subject (gnus-simplify-subject-fuzzy (cdar fs))
 517                   fs (cdr fs))
 518             (while (and fs (or from subject))
 519               (when from
 520                 (unless (string= from (caar fs))
 521                   (setq from nil)))
 522               (when subject
 523                 (unless (string= (gnus-simplify-subject-fuzzy (cdar fs))
 524                                  subject)
 525                   (setq subject nil)))
 526               (setq fs (cdr fs))))
 527           (unless subject
 528             (setq subject "Digested Articles"))
 529           (unless from
 530             (setq from
 531                   (if (gnus-news-group-p gnus-newsgroup-name)
 532                       gnus-newsgroup-name
 533                     "Various"))))
 534         (goto-char (point-min))
 535         (when (re-search-forward "^Subject: ")
 536           (delete-region (point) (point-at-eol))
 537           (insert subject))
 538         (goto-char (point-min))
 539         (when (re-search-forward "^From:")
 540           (delete-region (point) (point-at-eol))
 541           (insert " " from))
 542         (let ((message-forward-decoded-p t))
 543           (message-forward post t))))
 544     (setq gnus-uu-digest-from-subject nil)))
 545
 546 (defun gnus-uu-digest-post-forward (&optional n)
 547   "Digest and forward to a newsgroup."
 548   (interactive "P")
 549   (gnus-uu-digest-mail-forward n t))
 550
 551 ;; Process marking.
 552
 553 (defun gnus-message-process-mark (unmarkp new-marked)
 554   (let ((old (- (length gnus-newsgroup-processable) (length new-marked))))
 555     (gnus-message 6 "%d mark%s %s%s"
 556                   (length new-marked)
 557                   (if (= (length new-marked) 1) "" "s")
 558                   (if unmarkp "removed" "added")
 559                   (cond
 560                    ((and (zerop old)
 561                          (not unmarkp))
 562                     "")
 563                    (unmarkp
 564                     (format ", %d remain marked"
 565                             (length gnus-newsgroup-processable)))
 566                    (t
 567                     (format ", %d already marked" old))))))
 568
 569 (defun gnus-new-processable (unmarkp articles)
 570   (if unmarkp
 571       (gnus-intersection gnus-newsgroup-processable articles)
 572     (gnus-set-difference articles gnus-newsgroup-processable)))
 573
 574 (defun gnus-uu-mark-by-regexp (regexp &optional unmark)
 575   "Set the process mark on articles whose subjects match REGEXP.
 576 When called interactively, prompt for REGEXP.
 577 Optional UNMARK non-nil means unmark instead of mark."
 578   (interactive "sMark (regexp): \nP")
 579   (save-excursion
 580     (let* ((articles (gnus-uu-find-articles-matching regexp))
 581            (new-marked (gnus-new-processable unmark articles)))
 582       (while articles
 583         (if unmark
 584             (gnus-summary-remove-process-mark (pop articles))
 585           (gnus-summary-set-process-mark (pop articles))))
 586       (gnus-message-process-mark unmark new-marked)))
 587   (gnus-summary-position-point))
 588
 589 (defun gnus-uu-unmark-by-regexp (regexp)
 590   "Remove the process mark from articles whose subjects match REGEXP.
 591 When called interactively, prompt for REGEXP."
 592   (interactive "sUnmark (regexp): ")
 593   (gnus-uu-mark-by-regexp regexp t))
 594
 595 (defun gnus-uu-mark-series (&optional silent)
 596   "Mark the current series with the process mark."
 597   (interactive)
 598   (let* ((articles (gnus-uu-find-articles-matching))
 599          (l (length articles)))
 600     (while articles
 601       (gnus-summary-set-process-mark (car articles))
 602       (setq articles (cdr articles)))
 603     (unless silent
 604       (gnus-message 6 "Marked %d articles" l))
 605     (gnus-summary-position-point)
 606     l))
 607
 608 (defun gnus-uu-mark-region (beg end &optional unmark)
 609   "Set the process mark on all articles between point and mark."
 610   (interactive "r")
 611   (save-excursion
 612     (goto-char beg)
 613     (while (< (point) end)
 614       (if unmark
 615           (gnus-summary-remove-process-mark (gnus-summary-article-number))
 616         (gnus-summary-set-process-mark (gnus-summary-article-number)))
 617       (forward-line 1)))
 618   (gnus-summary-position-point))
 619
 620 (defun gnus-uu-unmark-region (beg end)
 621   "Remove the process mark from all articles between point and mark."
 622   (interactive "r")
 623   (gnus-uu-mark-region beg end t))
 624
 625 (defun gnus-uu-mark-buffer ()
 626   "Set the process mark on all articles in the buffer."
 627   (interactive)
 628   (gnus-uu-mark-region (point-min) (point-max)))
 629
 630 (defun gnus-uu-unmark-buffer ()
 631   "Remove the process mark on all articles in the buffer."
 632   (interactive)
 633   (gnus-uu-mark-region (point-min) (point-max) t))
 634
 635 (defun gnus-uu-mark-thread ()
 636   "Marks all articles downwards in this thread."
 637   (interactive)
 638   (gnus-save-hidden-threads
 639     (let ((level (gnus-summary-thread-level)))
 640       (while (and (gnus-summary-set-process-mark
 641                    (gnus-summary-article-number))
 642                   (zerop (gnus-summary-next-subject 1 nil t))
 643                   (> (gnus-summary-thread-level) level)))))
 644   (gnus-summary-position-point))
 645
 646 (defun gnus-uu-unmark-thread ()
 647   "Unmarks all articles downwards in this thread."
 648   (interactive)
 649   (let ((level (gnus-summary-thread-level)))
 650     (while (and (gnus-summary-remove-process-mark
 651                  (gnus-summary-article-number))
 652                 (zerop (gnus-summary-next-subject 1))
 653                 (> (gnus-summary-thread-level) level))))
 654   (gnus-summary-position-point))
 655
 656 (defun gnus-uu-invert-processable ()
 657   "Invert the list of process-marked articles."
 658   (interactive)
 659   (let ((data gnus-newsgroup-data)
 660         number)
 661     (save-excursion
 662       (while data
 663         (if (memq (setq number (gnus-data-number (pop data)))
 664                   gnus-newsgroup-processable)
 665             (gnus-summary-remove-process-mark number)
 666           (gnus-summary-set-process-mark number)))))
 667   (gnus-summary-position-point))
 668
 669 (defun gnus-uu-mark-over (&optional score)
 670   "Mark all articles with a score over SCORE (the prefix)."
 671   (interactive "P")
 672   (let ((score (or score gnus-summary-default-score 0))
 673         (data gnus-newsgroup-data))
 674     (save-excursion
 675       (while data
 676         (when (> (or (cdr (assq (gnus-data-number (car data))
 677                                 gnus-newsgroup-scored))
 678                      gnus-summary-default-score 0)
 679                  score)
 680           (gnus-summary-set-process-mark (caar data)))
 681         (setq data (cdr data))))
 682     (gnus-summary-position-point)))
 683
 684 (defun gnus-uu-mark-sparse ()
 685   "Mark all series that have some articles marked."
 686   (interactive)
 687   (let ((marked (nreverse gnus-newsgroup-processable))
 688         subject articles total headers)
 689     (unless marked
 690       (error "No articles marked with the process mark"))
 691     (setq gnus-newsgroup-processable nil)
 692     (save-excursion
 693       (while marked
 694         (and (vectorp (setq headers
 695                             (gnus-summary-article-header (car marked))))
 696              (setq subject (mail-header-subject headers)
 697                    articles (gnus-uu-find-articles-matching
 698                              (gnus-uu-reginize-string subject))
 699                    total (nconc total articles)))
 700         (while articles
 701           (gnus-summary-set-process-mark (car articles))
 702           (setcdr marked (delq (car articles) (cdr marked)))
 703           (setq articles (cdr articles)))
 704         (setq marked (cdr marked)))
 705       (setq gnus-newsgroup-processable (nreverse total)))
 706     (gnus-summary-position-point)))
 707
 708 (defun gnus-uu-mark-all ()
 709   "Mark all articles in \"series\" order."
 710   (interactive)
 711   (setq gnus-newsgroup-processable nil)
 712   (save-excursion
 713     (let ((data gnus-newsgroup-data)
 714           (count 0)
 715           number)
 716       (while data
 717         (when (and (not (memq (setq number (gnus-data-number (car data)))
 718                               gnus-newsgroup-processable))
 719                    (vectorp (gnus-data-header (car data))))
 720           (gnus-summary-goto-subject number)
 721           (setq count (+ count (gnus-uu-mark-series t))))
 722         (setq data (cdr data)))
 723       (gnus-message 6 "Marked %d articles" count)))
 724   (gnus-summary-position-point))
 725
 726 ;; All PostScript functions written by Erik Selberg <speed@cs.washington.edu>.
 727
 728 (defun gnus-uu-decode-postscript (&optional n)
 729   "Gets postscript of the current article."
 730   (interactive "P")
 731   (gnus-uu-decode-with-method 'gnus-uu-decode-postscript-article n))
 732
 733 (defun gnus-uu-decode-postscript-view (&optional n)
 734   "Gets and views the current article."
 735   (interactive "P")
 736   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 737     (gnus-uu-decode-postscript n)))
 738
 739 (defun gnus-uu-decode-postscript-and-save (n dir)
 740   "Extracts postscript and saves the current article."
 741   (interactive
 742    (list current-prefix-arg
 743          (file-name-as-directory
 744           (read-file-name "Save in dir: "
 745                           gnus-uu-default-dir
 746                           gnus-uu-default-dir t))))
 747   (gnus-uu-decode-with-method 'gnus-uu-decode-postscript-article
 748                               n dir nil nil t))
 749
 750 (defun gnus-uu-decode-postscript-and-save-view (n dir)
 751   "Decodes, views and saves the resulting file."
 752   (interactive
 753    (list current-prefix-arg
 754          (read-file-name "Where do you want to save the file(s)? "
 755                          gnus-uu-default-dir
 756                          gnus-uu-default-dir t)))
 757   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 758     (gnus-uu-decode-postscript-and-save n dir)))
 759
 760
 761 ;; Internal functions.
 762
 763 (defun gnus-uu-decode-with-method (method n &optional save not-insert
 764                                           scan cdir)
 765   (gnus-uu-initialize scan)
 766   (when save
 767     (setq gnus-uu-default-dir save))
 768   ;; Create the directory we save to.
 769   (when (and scan cdir save
 770              (not (file-exists-p save)))
 771     (make-directory save t))
 772   (let ((articles (gnus-uu-get-list-of-articles n))
 773         files)
 774     (setq files (gnus-uu-grab-articles articles method t))
 775     (let ((gnus-current-article (car articles)))
 776       (when scan
 777         (setq files (gnus-uu-scan-directory gnus-uu-work-dir))))
 778     (when save
 779       (gnus-uu-save-files files save))
 780     (when (eq gnus-uu-do-not-unpack-archives nil)
 781       (setq files (gnus-uu-unpack-files files)))
 782     (setq files (nreverse (gnus-uu-get-actions files)))
 783     (or not-insert (not gnus-insert-pseudo-articles)
 784         (gnus-summary-insert-pseudos files save))))
 785
 786 (defun gnus-uu-scan-directory (dir &optional rec)
 787   "Return a list of all files under DIR."
 788   (let ((files (directory-files dir t))
 789         out file)
 790     (while (setq file (pop files))
 791       (unless (member (file-name-nondirectory file) '("." ".."))
 792         (push (list (cons 'name file)
 793                     (cons 'article gnus-current-article))
 794               out)
 795         (when (file-directory-p file)
 796           (setq out (nconc (gnus-uu-scan-directory file t) out)))))
 797     (if rec
 798         out
 799       (nreverse out))))
 800
 801 (defun gnus-uu-save-files (files dir)
 802   "Save FILES in DIR."
 803   (let ((len (length files))
 804         (reg (concat "^" (regexp-quote gnus-uu-work-dir)))
 805         to-file file fromdir)
 806     (while (setq file (cdr (assq 'name (pop files))))
 807       (when (file-exists-p file)
 808         (string-match reg file)
 809         (setq fromdir (substring file (match-end 0)))
 810         (if (file-directory-p file)
 811             (gnus-make-directory (concat dir fromdir))
 812           (setq to-file (concat dir fromdir))
 813           (when (or (not (file-exists-p to-file))
 814                     (eq gnus-uu-be-dangerous t)
 815                     (and gnus-uu-be-dangerous
 816                          (gnus-y-or-n-p (format "%s exists; overwrite? "
 817                                                 to-file))))
 818             (copy-file file to-file t t)))))
 819     (gnus-message 5 "Saved %d file%s" len (if (= len 1) "" "s"))))
 820
 821 ;; Functions for saving and possibly digesting articles without
 822 ;; any decoding.
 823
 824 ;; Function called by gnus-uu-grab-articles to treat each article.
 825 (defun gnus-uu-save-article (buffer in-state)
 826   (cond
 827    (gnus-uu-save-separate-articles
 828     (with-current-buffer buffer
 829       (let ((coding-system-for-write mm-text-coding-system))
 830         (gnus-write-buffer
 831          (concat gnus-uu-saved-article-name gnus-current-article)))
 832       (cond ((eq in-state 'first) (list gnus-uu-saved-article-name 'begin))
 833             ((eq in-state 'first-and-last) (list gnus-uu-saved-article-name
 834                                                  'begin 'end))
 835             ((eq in-state 'last) (list 'end))
 836             (t (list 'middle)))))
 837    ((not gnus-uu-save-in-digest)
 838     (with-current-buffer buffer
 839       (write-region (point-min) (point-max) gnus-uu-saved-article-name t)
 840       (cond ((eq in-state 'first) (list gnus-uu-saved-article-name 'begin))
 841             ((eq in-state 'first-and-last) (list gnus-uu-saved-article-name
 842                                                  'begin 'end))
 843             ((eq in-state 'last) (list 'end))
 844             (t (list 'middle)))))
 845    (t
 846     (let ((header (gnus-summary-article-header)))
 847       (push (cons (mail-header-from header)
 848                   (mail-header-subject header))
 849             gnus-uu-digest-from-subject))
 850     (let ((name (file-name-nondirectory gnus-uu-saved-article-name))
 851           beg subj headers headline sorthead body end-string state)
 852       (if (or (eq in-state 'first)
 853               (eq in-state 'first-and-last))
 854           (progn
 855             (setq state (list 'begin))
 856             (with-current-buffer (gnus-get-buffer-create "*gnus-uu-body*")
 857               (erase-buffer))
 858             (with-current-buffer (gnus-get-buffer-create "*gnus-uu-pre*")
 859               (erase-buffer)
 860               (insert (format
 861                        "Date: %s\nFrom: %s\nSubject: %s Digest\n\n"
 862                        (message-make-date) name name))
 863               (when (and message-forward-as-mime gnus-uu-digest-buffer)
 864                 (insert
 865                  "<#mml type=message/rfc822>\nSubject: Topics\n\n<#/mml>\n")
 866                 (forward-line -1))
 867               (insert "Topics:\n")))
 868         (when (not (eq in-state 'end))
 869           (setq state (list 'middle))))
 870       (with-current-buffer "*gnus-uu-body*"
 871         (goto-char (setq beg (point-max)))
 872         (save-excursion
 873           (save-restriction
 874             (set-buffer buffer)
 875             (let (buffer-read-only)
 876               (set-text-properties (point-min) (point-max) nil)
 877               ;; These two are necessary for XEmacs 19.12 fascism.
 878               (put-text-property (point-min) (point-max) 'invisible nil)
 879               (put-text-property (point-min) (point-max) 'intangible nil))
 880             (when (and message-forward-as-mime
 881                        message-forward-show-mml
 882                        gnus-uu-digest-buffer)
 883               (mm-enable-multibyte)
 884               (mime-to-mml))
 885             (goto-char (point-min))
 886             (search-forward "\n\n")
 887             (unless (and message-forward-as-mime gnus-uu-digest-buffer)
 888               ;; Quote all 30-dash lines.
 889               (save-excursion
 890                 (while (re-search-forward "^-" nil t)
 891                   (beginning-of-line)
 892                   (delete-char 1)
 893                   (insert "- "))))
 894             (setq body (buffer-substring (1- (point)) (point-max)))
 895             (narrow-to-region (point-min) (point))
 896             (if (not (setq headers gnus-uu-digest-headers))
 897                 (setq sorthead (buffer-string))
 898               (while headers
 899                 (setq headline (car headers))
 900                 (setq headers (cdr headers))
 901                 (goto-char (point-min))
 902                 (while (re-search-forward headline nil t)
 903                   (setq sorthead
 904                         (concat sorthead
 905                                 (buffer-substring
 906                                  (match-beginning 0)
 907                                  (or (and (re-search-forward "^[^ \t]" nil t)
 908                                           (1- (point)))
 909                                      (progn (forward-line 1) (point)))))))))
 910             (widen)))
 911         (if (and message-forward-as-mime gnus-uu-digest-buffer)
 912           (if message-forward-show-mml
 913               (progn
 914                 (insert "\n<#mml type=message/rfc822>\n")
 915                 (insert sorthead) (goto-char (point-max))
 916                 (insert body) (goto-char (point-max))
 917                 (insert "\n<#/mml>\n"))
 918             (let ((buf (mml-generate-new-buffer " *mml*")))
 919               (with-current-buffer buf
 920                 (insert sorthead)
 921                 (goto-char (point-min))
 922                 (when (re-search-forward "^Subject: \\(.*\\)$" nil t)
 923                   (setq subj (buffer-substring (match-beginning 1)
 924                                                (match-end 1))))
 925                 (goto-char (point-max))
 926                 (insert body))
 927               (insert "\n<#part type=message/rfc822"
 928                       " buffer=\"" (buffer-name buf) "\">\n")))
 929           (insert sorthead) (goto-char (point-max))
 930           (insert body) (goto-char (point-max))
 931           (insert (concat "\n" (make-string 30 ?-) "\n\n")))
 932         (goto-char beg)
 933         (when (re-search-forward "^Subject: \\(.*\\)$" nil t)
 934           (setq subj (buffer-substring (match-beginning 1) (match-end 1))))
 935         (when subj
 936           (with-current-buffer "*gnus-uu-pre*"
 937             (insert (format "   %s\n" subj)))))
 938       (when (or (eq in-state 'last)
 939                 (eq in-state 'first-and-last))
 940         (if (and message-forward-as-mime gnus-uu-digest-buffer)
 941             (with-current-buffer gnus-uu-digest-buffer
 942               (erase-buffer)
 943               (insert-buffer-substring "*gnus-uu-pre*")
 944               (goto-char (point-max))
 945               (insert-buffer-substring "*gnus-uu-body*"))
 946           (with-current-buffer "*gnus-uu-pre*"
 947             (insert (format "\n\n%s\n\n" (make-string 70 ?-)))
 948             (if gnus-uu-digest-buffer
 949                 (with-current-buffer gnus-uu-digest-buffer
 950                   (erase-buffer)
 951                   (insert-buffer-substring "*gnus-uu-pre*"))
 952               (let ((coding-system-for-write mm-text-coding-system))
 953                 (gnus-write-buffer gnus-uu-saved-article-name))))
 954           (with-current-buffer "*gnus-uu-body*"
 955             (goto-char (point-max))
 956             (insert
 957              (concat (setq end-string (format "End of %s Digest" name))
 958                      "\n"))
 959             (insert (concat (make-string (length end-string) ?*) "\n"))
 960             (if gnus-uu-digest-buffer
 961                 (with-current-buffer gnus-uu-digest-buffer
 962                   (goto-char (point-max))
 963                   (insert-buffer-substring "*gnus-uu-body*"))
 964               (let ((coding-system-for-write mm-text-coding-system)
 965                     (file-name-coding-system nnmail-pathname-coding-system))
 966                 (write-region
 967                  (point-min) (point-max) gnus-uu-saved-article-name t)))))
 968         (gnus-kill-buffer "*gnus-uu-pre*")
 969         (gnus-kill-buffer "*gnus-uu-body*")
 970         (push 'end state))
 971       (if (memq 'begin state)
 972           (cons gnus-uu-saved-article-name state)
 973         state)))))
 974
 975 ;; Binhex treatment - not very advanced.
 976
 977 (defvar gnus-uu-binhex-body-line
 978   "^[^:]...............................................................$")
 979 (defvar gnus-uu-binhex-begin-line
 980   "^:...............................................................$")
 981 (defvar gnus-uu-binhex-end-line
 982   ":$")
 983
 984 (defun gnus-uu-binhex-article (buffer in-state)
 985   (let (state start-char)
 986     (with-current-buffer buffer
 987       (widen)
 988       (goto-char (point-min))
 989       (when (not (re-search-forward gnus-uu-binhex-begin-line nil t))
 990         (when (not (re-search-forward gnus-uu-binhex-body-line nil t))
 991           (setq state (list 'wrong-type))))
 992
 993       (if (memq 'wrong-type state)
 994           ()
 995         (beginning-of-line)
 996         (setq start-char (point))
 997         (if (looking-at gnus-uu-binhex-begin-line)
 998             (progn
 999               (setq state (list 'begin))
1000               (write-region (point-min) (point-min)
1001                             gnus-uu-binhex-article-name))
1002           (setq state (list 'middle)))
1003         (goto-char (point-max))
1004         (re-search-backward (concat gnus-uu-binhex-body-line "\\|"
1005                                     gnus-uu-binhex-end-line)
1006                             nil t)
1007         (when (looking-at gnus-uu-binhex-end-line)
1008           (setq state (if (memq 'begin state)
1009                           (cons 'end state)
1010                         (list 'end))))
1011         (beginning-of-line)
1012         (forward-line 1)
1013         (when (file-exists-p gnus-uu-binhex-article-name)
1014           (mm-append-to-file start-char (point) gnus-uu-binhex-article-name))))
1015     (if (memq 'begin state)
1016         (cons gnus-uu-binhex-article-name state)
1017       state)))
1018
1019 ;; yEnc
1020
1021 (defun gnus-uu-yenc-article (buffer in-state)
1022   (with-current-buffer gnus-original-article-buffer
1023     (widen)
1024     (let ((file-name (yenc-extract-filename))
1025           state start-char)
1026       (when (not file-name)
1027         (setq state (list 'wrong-type)))
1028
1029       (if (memq 'wrong-type state)
1030           ()
1031         (when (yenc-first-part-p)
1032           (setq gnus-uu-yenc-article-name
1033                 (expand-file-name file-name gnus-uu-work-dir))
1034           (push 'begin state))
1035         (when (yenc-last-part-p)
1036           (push 'end state))
1037         (unless state
1038           (push 'middle state))
1039         (mm-with-unibyte-buffer
1040           (insert-buffer-substring gnus-original-article-buffer)
1041           (yenc-decode-region (point-min) (point-max))
1042           (when (and (member 'begin state)
1043                      (file-exists-p gnus-uu-yenc-article-name))
1044             (delete-file gnus-uu-yenc-article-name))
1045           (mm-append-to-file (point-min) (point-max)
1046                              gnus-uu-yenc-article-name)))
1047       (if (memq 'begin state)
1048           (cons file-name state)
1049         state))))
1050
1051 ;; PostScript
1052
1053 (defun gnus-uu-decode-postscript-article (process-buffer in-state)
1054   (let ((state (list 'ok))
1055         start-char end-char file-name)
1056     (with-current-buffer process-buffer
1057       (goto-char (point-min))
1058       (if (not (re-search-forward gnus-uu-postscript-begin-string nil t))
1059           (setq state (list 'wrong-type))
1060         (beginning-of-line)
1061         (setq start-char (point))
1062         (if (not (re-search-forward gnus-uu-postscript-end-string nil t))
1063             (setq state (list 'wrong-type))
1064           (setq end-char (point))
1065           (set-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name))
1066           (insert-buffer-substring process-buffer start-char end-char)
1067           (setq file-name (concat gnus-uu-work-dir
1068                                   (cdr gnus-article-current) ".ps"))
1069           (write-region (point-min) (point-max) file-name)
1070           (setq state (list file-name 'begin 'end)))))
1071     state))
1072
1073
1074 ;; Find actions.
1075
1076 (defun gnus-uu-get-actions (files)
1077   (let ((ofiles files)
1078         action name)
1079     (while files
1080       (setq name (cdr (assq 'name (car files))))
1081       (and
1082        (setq action (gnus-uu-get-action name))
1083        (setcar files (nconc (list (if (string= action "gnus-uu-archive")
1084                                       (cons 'action "file")
1085                                     (cons 'action action))
1086                                   (cons 'execute (gnus-uu-command
1087                                                   action name)))
1088                             (car files))))
1089       (setq files (cdr files)))
1090     ofiles))
1091
1092 (defun gnus-uu-get-action (file-name)
1093   (let (action)
1094     (setq action
1095           (gnus-uu-choose-action
1096            file-name
1097            (append
1098             gnus-uu-user-view-rules
1099             (if gnus-uu-ignore-default-view-rules
1100                 nil
1101               gnus-uu-default-view-rules)
1102             gnus-uu-user-view-rules-end)))
1103     (when (and (not (string= (or action "") "gnus-uu-archive"))
1104                gnus-uu-view-with-metamail)
1105       (when (setq action
1106                   (gnus-uu-choose-action file-name gnus-uu-ext-to-mime-list))
1107         (setq action (format "metamail -d -b -c \"%s\"" action))))
1108     action))
1109
1110
1111 ;; Functions for treating subjects and collecting series.
1112
1113 (defun gnus-uu-reginize-string (string)
1114   ;; Takes a string and puts a \ in front of every special character;
1115   ;; replaces the last thing that looks like "2/3" with "[0-9]+/3"
1116   ;; or, if it can't find something like that, tries "2 of 3", then
1117   ;; finally just replaces the next to last number with "[0-9]+".
1118   (with-current-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name)
1119     (buffer-disable-undo)
1120     (erase-buffer)
1121     (insert (regexp-quote string))
1122
1123     (setq case-fold-search nil)
1124
1125     (end-of-line)
1126     (if (re-search-backward "\\([^0-9]\\)[0-9]+/\\([0-9]+\\)" nil t)
1127         (replace-match "\\1[0-9]+/\\2")
1128
1129       (end-of-line)
1130       (if (re-search-backward "\\([^0-9]\\)[0-9]+[ \t]*of[ \t]*\\([0-9]+\\)"
1131                               nil t)
1132           (replace-match "\\1[0-9]+ of \\2")
1133
1134         (end-of-line)
1135         (if (re-search-backward "\\([^0-9]\\)[0-9]+\\([^0-9]+\\)[0-9]+"
1136                                 nil t)
1137             (replace-match "\\1[0-9]+\\2[0-9]+" t nil nil nil))))
1138
1139     (goto-char (point-min))
1140     (while (re-search-forward "[ \t]+" nil t)
1141       (replace-match "[ \t]+" t t))
1142
1143     (buffer-string)))
1144
1145 (defun gnus-uu-get-list-of-articles (n)
1146   ;; If N is non-nil, the article numbers of the N next articles
1147   ;; will be returned.
1148   ;; If any articles have been marked as processable, they will be
1149   ;; returned.
1150   ;; Failing that, articles that have subjects that are part of the
1151   ;; same "series" as the current will be returned.
1152   (let (articles)
1153     (cond
1154      (n
1155       (setq n (prefix-numeric-value n))
1156       (let ((backward (< n 0))
1157             (n (abs n)))
1158         (save-excursion
1159           (while (and (> n 0)
1160                       (push (gnus-summary-article-number)
1161                             articles)
1162                       (gnus-summary-search-forward nil nil backward))
1163             (setq n (1- n))))
1164         (nreverse articles)))
1165      (gnus-newsgroup-processable
1166       (reverse gnus-newsgroup-processable))
1167      (t
1168       (gnus-uu-find-articles-matching)))))
1169
1170 (defun gnus-uu-string< (l1 l2)
1171   (string< (car l1) (car l2)))
1172
1173 (defun gnus-uu-find-articles-matching
1174   (&optional subject only-unread do-not-translate)
1175   ;; Finds all articles that matches the regexp SUBJECT.  If it is
1176   ;; nil, the current article name will be used.  If ONLY-UNREAD is
1177   ;; non-nil, only unread articles are chosen.  If DO-NOT-TRANSLATE is
1178   ;; non-nil, article names are not equalized before sorting.
1179   (let ((subject (or subject
1180                      (gnus-uu-reginize-string (gnus-summary-article-subject))))
1181         list-of-subjects)
1182     (save-excursion
1183       (when subject
1184         ;; Collect all subjects matching subject.
1185         (let ((case-fold-search t)
1186               (data gnus-newsgroup-data)
1187               subj mark d)
1188           (while data
1189             (setq d (pop data))
1190             (and (not (gnus-data-pseudo-p d))
1191                  (or (not only-unread)
1192                      (= (setq mark (gnus-data-mark d))
1193                         gnus-unread-mark)
1194                      (= mark gnus-ticked-mark)
1195                      (= mark gnus-dormant-mark))
1196                  (setq subj (mail-header-subject (gnus-data-header d)))
1197                  (string-match subject subj)
1198                  (push (cons subj (gnus-data-number d))
1199                        list-of-subjects))))
1200
1201         ;; Expand numbers, sort, and return the list of article
1202         ;; numbers.
1203         (mapcar 'cdr
1204                 (sort (gnus-uu-expand-numbers
1205                        list-of-subjects
1206                        (not do-not-translate))
1207                       'gnus-uu-string<))))))
1208
1209 (defun gnus-uu-expand-numbers (string-list &optional translate)
1210   ;; Takes a list of strings and "expands" all numbers in all the
1211   ;; strings.  That is, this function makes all numbers equal length by
1212   ;; prepending lots of zeroes before each number.  This is to ease later
1213   ;; sorting to find out what sequence the articles are supposed to be
1214   ;; decoded in.  Returns the list of expanded strings.
1215   (let ((out-list string-list)
1216         string)
1217     (with-current-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name)
1218       (buffer-disable-undo)
1219       (while string-list
1220         (erase-buffer)
1221         (insert (caar string-list))
1222         ;; Translate multiple spaces to one space.
1223         (goto-char (point-min))
1224         (while (re-search-forward "[ \t]+" nil t)
1225           (replace-match " "))
1226         ;; Translate all characters to "a".
1227         (goto-char (point-min))
1228         (when translate
1229           (while (re-search-forward "[A-Za-z]" nil t)
1230             (replace-match "a" t t)))
1231         ;; Expand numbers.
1232         (goto-char (point-min))
1233         (while (re-search-forward "[0-9]+" nil t)
1234           (ignore-errors
1235             (replace-match
1236              (format "%06d"
1237                      (string-to-number (buffer-substring
1238                                      (match-beginning 0) (match-end 0)))))))
1239         (setq string (buffer-substring (point-min) (point-max)))
1240         (setcar (car string-list) string)
1241         (setq string-list (cdr string-list))))
1242     out-list))
1243
1244
1245 ;; `gnus-uu-grab-articles' is the general multi-article treatment
1246 ;; function.  It takes a list of articles to be grabbed and a function
1247 ;; to apply to each article.
1248 ;;
1249 ;; The function to be called should take two parameters.  The first
1250 ;; parameter is the article buffer.  The function should leave the
1251 ;; result, if any, in this buffer.  Most treatment functions will just
1252 ;; generate files...
1253 ;;
1254 ;; The second parameter is the state of the list of articles, and can
1255 ;; have four values: `first', `middle', `last' and `first-and-last'.
1256 ;;
1257 ;; The function should return a list.  The list may contain the
1258 ;; following symbols:
1259 ;; `error' if an error occurred
1260 ;; `begin' if the beginning of an encoded file has been received
1261 ;;   If the list returned contains a `begin', the first element of
1262 ;;   the list *must* be a string with the file name of the decoded
1263 ;;   file.
1264 ;; `end' if the end of an encoded file has been received
1265 ;; `middle' if the article was a body part of an encoded file
1266 ;; `wrong-type' if the article was not a part of an encoded file
1267 ;; `ok', which can be used everything is ok
1268
1269 (defvar gnus-uu-has-been-grabbed nil)
1270
1271 (defun gnus-uu-unmark-list-of-grabbed (&optional dont-unmark-last-article)
1272   (let (art)
1273     (if (not (and gnus-uu-has-been-grabbed
1274                   gnus-uu-unmark-articles-not-decoded))
1275         ()
1276       (when dont-unmark-last-article
1277         (setq art (car gnus-uu-has-been-grabbed))
1278         (setq gnus-uu-has-been-grabbed (cdr gnus-uu-has-been-grabbed)))
1279       (while gnus-uu-has-been-grabbed
1280         (gnus-summary-tick-article (car gnus-uu-has-been-grabbed) t)
1281         (setq gnus-uu-has-been-grabbed (cdr gnus-uu-has-been-grabbed)))
1282       (when dont-unmark-last-article
1283         (setq gnus-uu-has-been-grabbed (list art))))))
1284
1285 ;; This function takes a list of articles and a function to apply to
1286 ;; each article grabbed.
1287 ;;
1288 ;; This function returns a list of files decoded if the grabbing and
1289 ;; the process-function has been successful and nil otherwise.
1290 (defun gnus-uu-grab-articles (articles process-function
1291                                        &optional sloppy limit no-errors)
1292   (let ((state 'first)
1293         (gnus-asynchronous nil)
1294         (gnus-inhibit-treatment t)
1295         has-been-begin article result-file result-files process-state
1296         gnus-summary-display-article-function
1297         gnus-article-prepare-hook gnus-display-mime-function
1298         article-series files)
1299
1300     (while (and articles
1301                 (not (memq 'error process-state))
1302                 (or sloppy
1303                     (not (memq 'end process-state))))
1304
1305       (setq article (pop articles))
1306       (when (vectorp (gnus-summary-article-header article))
1307         (push article article-series)
1308
1309         (unless articles
1310           (if (eq state 'first)
1311               (setq state 'first-and-last)
1312             (setq state 'last)))
1313
1314         (let ((part (gnus-uu-part-number article)))
1315           (gnus-message 6 "Getting article %d%s..."
1316                         article (if (string= part "") "" (concat ", " part))))
1317         (gnus-summary-display-article article)
1318
1319         ;; Push the article to the processing function.
1320         (with-current-buffer gnus-original-article-buffer
1321           (let ((buffer-read-only nil))
1322             (with-current-buffer gnus-summary-buffer
1323               (setq process-state
1324                     (funcall process-function
1325                              gnus-original-article-buffer state)))))
1326
1327         (gnus-summary-remove-process-mark article)
1328
1329         ;; If this is the beginning of a decoded file, we push it
1330         ;; on to a list.
1331         (when (or (memq 'begin process-state)
1332                   (and (or (eq state 'first)
1333                            (eq state 'first-and-last))
1334                        (memq 'ok process-state)))
1335           (when has-been-begin
1336             ;; If there is a `result-file' here, that means that the
1337             ;; file was unsuccessfully decoded, so we delete it.
1338             (when (and result-file
1339                        (file-exists-p result-file)
1340                        (not gnus-uu-be-dangerous)
1341                        (or (eq gnus-uu-be-dangerous t)
1342                            (gnus-y-or-n-p
1343                             (format "Delete unsuccessfully decoded file %s? "
1344                                     result-file))))
1345               (delete-file result-file)))
1346           (when (memq 'begin process-state)
1347             (setq result-file (car process-state)))
1348           (setq has-been-begin t))
1349
1350         ;; Check whether we have decoded one complete file.
1351         (when (memq 'end process-state)
1352           (setq article-series nil)
1353           (setq has-been-begin nil)
1354           (if (stringp result-file)
1355               (setq files (list result-file))
1356             (setq files result-file))
1357           (setq result-file (car files))
1358           (while files
1359             (push (list (cons 'name (pop files))
1360                         (cons 'article article))
1361                   result-files))
1362           ;; Allow user-defined functions to be run on this file.
1363           (when gnus-uu-grabbed-file-functions
1364             (let ((funcs gnus-uu-grabbed-file-functions))
1365               (unless (listp funcs)
1366                 (setq funcs (list funcs)))
1367               (while funcs
1368                 (funcall (pop funcs) result-file))))
1369           (setq result-file nil)
1370           ;; Check whether we have decoded enough articles.
1371           (and limit (= (length result-files) limit)
1372                (setq articles nil)))
1373
1374         ;; If this is the last article to be decoded, and
1375         ;; we still haven't reached the end, then we delete
1376         ;; the partially decoded file.
1377         (and (or (eq state 'last) (eq state 'first-and-last))
1378              (not (memq 'end process-state))
1379              result-file
1380              (file-exists-p result-file)
1381              (not gnus-uu-be-dangerous)
1382              (or (eq gnus-uu-be-dangerous t)
1383                  (gnus-y-or-n-p
1384                   (format "Delete incomplete file %s? " result-file)))
1385              (delete-file result-file))
1386
1387         ;; If this was a file of the wrong sort, then
1388         (when (and (or (memq 'wrong-type process-state)
1389                        (memq 'error process-state))
1390                    gnus-uu-unmark-articles-not-decoded)
1391           (gnus-summary-tick-article article t))
1392
1393         ;; Set the new series state.
1394         (if (and (not has-been-begin)
1395                  (not sloppy)
1396                  (or (memq 'end process-state)
1397                      (memq 'middle process-state)))
1398             (progn
1399               (setq process-state (list 'error))
1400               (gnus-message 2 "No begin part at the beginning")
1401               (sleep-for 2))
1402           (setq state 'middle))))
1403
1404       ;; When there are no result-files, then something must be wrong.
1405     (if result-files
1406         (message "")
1407       (cond
1408        ((not has-been-begin)
1409         (gnus-message 2 "Wrong type file"))
1410        ((memq 'error process-state)
1411         (gnus-message 2 "An error occurred during decoding"))
1412        ((not (or (memq 'ok process-state)
1413                  (memq 'end process-state)))
1414         (gnus-message 2 "End of articles reached before end of file")))
1415       ;; Make unsuccessfully decoded articles unread.
1416       (when gnus-uu-unmark-articles-not-decoded
1417         (while article-series
1418           (gnus-summary-tick-article (pop article-series) t))))
1419
1420     ;; The original article buffer is hosed, shoot it down.
1421     (gnus-kill-buffer gnus-original-article-buffer)
1422     (setq gnus-current-article nil)
1423     result-files))
1424
1425 (defun gnus-uu-grab-view (file)
1426   "View FILE using the gnus-uu methods."
1427   (let ((action (gnus-uu-get-action file)))
1428     (gnus-execute-command
1429      (if (string-match "%" action)
1430          (format action file)
1431        (concat action " " file))
1432      (eq gnus-view-pseudos 'not-confirm))))
1433
1434 (defun gnus-uu-grab-move (file)
1435   "Move FILE to somewhere."
1436   (when gnus-uu-default-dir
1437     (let ((to-file (concat (file-name-as-directory gnus-uu-default-dir)
1438                            (file-name-nondirectory file))))
1439       (rename-file file to-file)
1440       (unless (file-exists-p file)
1441         (make-symbolic-link to-file file)))))
1442
1443 (defun gnus-uu-part-number (article)
1444   (let* ((header (gnus-summary-article-header article))
1445          (subject (and header (mail-header-subject header)))
1446          (part nil))
1447     (if subject
1448         (while (string-match "[0-9]+/[0-9]+\\|[0-9]+[ \t]+of[ \t]+[0-9]+"
1449                              subject)
1450           (setq part (match-string 0 subject))
1451           (setq subject (substring subject (match-end 0)))))
1452     (or part
1453         (while (string-match "[0-9]+[^0-9]+[0-9]+" subject)
1454           (setq part (match-string 0 subject))
1455           (setq subject (substring subject (match-end 0)))))
1456     (or part "")))
1457
1458 (defun gnus-uu-uudecode-sentinel (process event)
1459   (delete-process (get-process process)))
1460
1461 (defun gnus-uu-uustrip-article (process-buffer in-state)
1462   ;; Uudecodes a file asynchronously.
1463   (with-current-buffer process-buffer
1464     (let ((state (list 'wrong-type))
1465           process-connection-type case-fold-search buffer-read-only
1466           files start-char)
1467       (goto-char (point-min))
1468
1469       ;; Deal with ^M at the end of the lines.
1470       (when gnus-uu-kill-carriage-return
1471         (save-excursion
1472           (while (search-forward "\r" nil t)
1473             (delete-char -1))))
1474
1475       (while (or (re-search-forward gnus-uu-begin-string nil t)
1476                  (re-search-forward gnus-uu-body-line nil t))
1477         (setq state (list 'ok))
1478         ;; Ok, we are at the first uucoded line.
1479         (beginning-of-line)
1480         (setq start-char (point))
1481
1482         (if (not (looking-at gnus-uu-begin-string))
1483             (setq state (list 'middle))
1484           ;; This is the beginning of a uuencoded article.
1485           ;; We replace certain characters that could make things messy.
1486           (setq gnus-uu-file-name
1487                 (gnus-map-function
1488                  mm-file-name-rewrite-functions
1489                  (file-name-nondirectory (match-string 1))))
1490           (replace-match (concat "begin 644 " gnus-uu-file-name) t t)
1491
1492           ;; Remove any non gnus-uu-body-line right after start.
1493           (forward-line 1)
1494           (while (and (not (eobp))
1495                       (not (looking-at gnus-uu-body-line)))
1496             (gnus-delete-line))
1497
1498           ;; If a process is running, we kill it.
1499           (when (and gnus-uu-uudecode-process
1500                      (memq (process-status gnus-uu-uudecode-process)
1501                            '(run stop)))
1502             (delete-process gnus-uu-uudecode-process)
1503             (gnus-uu-unmark-list-of-grabbed t))
1504
1505           ;; Start a new uudecoding process.
1506           (let ((cdir default-directory))
1507             (unwind-protect
1508                 (progn
1509                   (cd gnus-uu-work-dir)
1510                   (setq gnus-uu-uudecode-process
1511                         (start-process
1512                          "*uudecode*"
1513                          (gnus-get-buffer-create gnus-uu-output-buffer-name)
1514                          shell-file-name shell-command-switch
1515                          (format "cd %s %s uudecode" gnus-uu-work-dir
1516                                  gnus-shell-command-separator))))
1517               (cd cdir)))
1518           (set-process-sentinel
1519            gnus-uu-uudecode-process 'gnus-uu-uudecode-sentinel)
1520           (setq state (list 'begin))
1521           (push (concat gnus-uu-work-dir gnus-uu-file-name) files))
1522
1523         ;; We look for the end of the thing to be decoded.
1524         (if (re-search-forward gnus-uu-end-string nil t)
1525             (push 'end state)
1526           (goto-char (point-max))
1527           (re-search-backward gnus-uu-body-line nil t))
1528
1529         (forward-line 1)
1530
1531         (when gnus-uu-uudecode-process
1532           (when (memq (process-status gnus-uu-uudecode-process) '(run stop))
1533             ;; Try to correct mishandled uucode.
1534             (when gnus-uu-correct-stripped-uucode
1535               (gnus-uu-check-correct-stripped-uucode start-char (point)))
1536             (gnus-run-hooks 'gnus-uu-pre-uudecode-hook)
1537
1538             ;; Send the text to the process.
1539             (condition-case nil
1540                 (process-send-region
1541                  gnus-uu-uudecode-process start-char (point))
1542               (error
1543                (progn
1544                  (delete-process gnus-uu-uudecode-process)
1545                  (gnus-message 2 "gnus-uu: Couldn't uudecode")
1546                  (setq state (list 'wrong-type)))))
1547
1548             (if (memq 'end state)
1549                 (progn
1550                   ;; Send an EOF, just in case.
1551                   (ignore-errors
1552                     (process-send-eof gnus-uu-uudecode-process))
1553                   (while (memq (process-status gnus-uu-uudecode-process)
1554                                '(open run))
1555                     (accept-process-output gnus-uu-uudecode-process 1)))
1556               (when (or (not gnus-uu-uudecode-process)
1557                         (not (memq (process-status gnus-uu-uudecode-process)
1558                                    '(run stop))))
1559                 (setq state (list 'wrong-type)))))))
1560
1561       (if (memq 'begin state)
1562           (cons (if (= (length files) 1) (car files) files) state)
1563         state))))
1564
1565 (defvar gnus-uu-unshar-warning
1566   "*** WARNING ***
1567
1568 Shell archives are an archaic method of bundling files for distribution
1569 across computer networks.  During the unpacking process, arbitrary commands
1570 are executed on your system, and all kinds of nasty things can happen.
1571 Please examine the archive very carefully before you instruct Emacs to
1572 unpack it.  You can browse the archive buffer using \\[scroll-other-window].
1573
1574 If you are unsure what to do, please answer \"no\"."
1575   "Text of warning message displayed by `gnus-uu-unshar-article'.
1576 Make sure that this text consists only of few text lines.  Otherwise,
1577 Gnus might fail to display all of it.")
1578
1579
1580 ;; This function is used by `gnus-uu-grab-articles' to treat
1581 ;; a shared article.
1582 (defun gnus-uu-unshar-article (process-buffer in-state)
1583   (let ((state (list 'ok))
1584         start-char)
1585     (with-current-buffer process-buffer
1586       (goto-char (point-min))
1587       (if (not (re-search-forward gnus-uu-shar-begin-string nil t))
1588           (setq state (list 'wrong-type))
1589         (save-window-excursion
1590           (save-excursion
1591             (switch-to-buffer (current-buffer))
1592             (delete-other-windows)
1593             (let ((buffer (get-buffer-create (generate-new-buffer-name
1594                                               "*Warning*"))))
1595               (unless
1596                   (unwind-protect
1597                       (with-current-buffer buffer
1598                         (insert (substitute-command-keys
1599                                  gnus-uu-unshar-warning))
1600                         (goto-char (point-min))
1601                         (display-buffer buffer)
1602                         (yes-or-no-p "This is a shell archive, unshar it? "))
1603                     (kill-buffer buffer))
1604                 (setq state (list 'error))))))
1605         (unless (memq 'error state)
1606           (beginning-of-line)
1607           (setq start-char (point))
1608           (call-process-region
1609            start-char (point-max) shell-file-name nil
1610            (gnus-get-buffer-create gnus-uu-output-buffer-name) nil
1611            shell-command-switch
1612            (concat "cd " gnus-uu-work-dir " "
1613                    gnus-shell-command-separator  " sh")))))
1614     state))
1615
1616 ;; Returns the name of what the shar file is going to unpack.
1617 (defun gnus-uu-find-name-in-shar ()
1618   (let ((oldpoint (point))
1619         res)
1620     (goto-char (point-min))
1621     (when (re-search-forward gnus-uu-shar-name-marker nil t)
1622       (setq res (buffer-substring (match-beginning 1) (match-end 1))))
1623     (goto-char oldpoint)
1624     res))
1625
1626 ;; `gnus-uu-choose-action' chooses what action to perform given the name
1627 ;; and `gnus-uu-file-action-list'.  Returns either nil if no action is
1628 ;; found, or the name of the command to run if such a rule is found.
1629 (defun gnus-uu-choose-action (file-name file-action-list &optional no-ignore)
1630   (let ((action-list (copy-sequence file-action-list))
1631         (case-fold-search t)
1632         rule action)
1633     (and
1634      (unless no-ignore
1635        (and (not
1636              (and gnus-uu-ignore-files-by-name
1637                   (string-match gnus-uu-ignore-files-by-name file-name)))
1638             (not
1639              (and gnus-uu-ignore-files-by-type
1640                   (string-match gnus-uu-ignore-files-by-type
1641                                 (or (gnus-uu-choose-action
1642                                      file-name gnus-uu-ext-to-mime-list t)
1643                                     ""))))))
1644      (while (not (or (eq action-list ()) action))
1645        (setq rule (car action-list))
1646        (setq action-list (cdr action-list))
1647        (when (string-match (car rule) file-name)
1648          (setq action (cadr rule)))))
1649     action))
1650
1651 (defun gnus-uu-treat-archive (file-path)
1652   ;; Unpacks an archive.  Returns t if unpacking is successful.
1653   (let ((did-unpack t)
1654         action command dir)
1655     (setq action (gnus-uu-choose-action
1656                   file-path (append gnus-uu-user-archive-rules
1657                                     (if gnus-uu-ignore-default-archive-rules
1658                                         nil
1659                                       gnus-uu-default-archive-rules))))
1660
1661     (when (not action)
1662       (error "No unpackers for the file %s" file-path))
1663
1664     (string-match "/[^/]*$" file-path)
1665     (setq dir (substring file-path 0 (match-beginning 0)))
1666
1667     (when (member action gnus-uu-destructive-archivers)
1668       (copy-file file-path (concat file-path "~") t))
1669
1670     (setq command (format "cd %s ; %s" dir (gnus-uu-command action file-path)))
1671
1672     (with-current-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name)
1673       (erase-buffer))
1674
1675     (gnus-message 5 "Unpacking: %s..." (gnus-uu-command action file-path))
1676
1677     (if (eq 0 (call-process shell-file-name nil
1678                            (gnus-get-buffer-create gnus-uu-output-buffer-name)
1679                            nil shell-command-switch command))
1680         (message "")
1681       (gnus-message 2 "Error during unpacking of archive")
1682       (setq did-unpack nil))
1683
1684     (when (member action gnus-uu-destructive-archivers)
1685       (rename-file (concat file-path "~") file-path t))
1686
1687     did-unpack))
1688
1689 (defun gnus-uu-dir-files (dir)
1690   (let ((dirs (directory-files dir t "[^/][^\\.][^\\.]?$"))
1691         files file)
1692     (while dirs
1693       (if (file-directory-p (setq file (car dirs)))
1694           (setq files (append files (gnus-uu-dir-files file)))
1695         (push file files))
1696       (setq dirs (cdr dirs)))
1697     files))
1698
1699 (defun gnus-uu-unpack-files (files &optional ignore)
1700   ;; Go through FILES and look for files to unpack.
1701   (let* ((totfiles (gnus-uu-ls-r gnus-uu-work-dir))
1702          (ofiles files)
1703          file did-unpack)
1704     (while files
1705       (setq file (cdr (assq 'name (car files))))
1706       (when (and (not (member file ignore))
1707                  (equal (gnus-uu-get-action (file-name-nondirectory file))
1708                         "gnus-uu-archive"))
1709         (push file did-unpack)
1710         (unless (gnus-uu-treat-archive file)
1711           (gnus-message 2 "Error during unpacking of %s" file))
1712         (let* ((newfiles (gnus-uu-ls-r gnus-uu-work-dir))
1713                (nfiles newfiles))
1714           (while nfiles
1715             (unless (member (car nfiles) totfiles)
1716               (push (list (cons 'name (car nfiles))
1717                           (cons 'original file))
1718                     ofiles))
1719             (setq nfiles (cdr nfiles)))
1720           (setq totfiles newfiles)))
1721       (setq files (cdr files)))
1722     (if did-unpack
1723         (gnus-uu-unpack-files ofiles (append did-unpack ignore))
1724       ofiles)))
1725
1726 (defun gnus-uu-ls-r (dir)
1727   (let* ((files (gnus-uu-directory-files dir t))
1728          (ofiles files))
1729     (while files
1730       (when (file-directory-p (car files))
1731         (setq ofiles (delete (car files) ofiles))
1732         (setq ofiles (append ofiles (gnus-uu-ls-r (car files)))))
1733       (setq files (cdr files)))
1734     ofiles))
1735
1736 ;; Various stuff
1737
1738 (defun gnus-uu-directory-files (dir &optional full)
1739   (let (files out file)
1740     (setq files (directory-files dir full))
1741     (while files
1742       (setq file (car files))
1743       (setq files (cdr files))
1744       (unless (member (file-name-nondirectory file) '("." ".."))
1745         (push file out)))
1746     (setq out (nreverse out))
1747     out))
1748
1749 (defun gnus-uu-check-correct-stripped-uucode (start end)
1750   (save-excursion
1751     (let (found beg length)
1752       (unless gnus-uu-correct-stripped-uucode
1753         (goto-char start)
1754
1755         (if (re-search-forward " \\|`" end t)
1756             (progn
1757               (goto-char start)
1758               (while (not (eobp))
1759                 (progn
1760                   (when (looking-at "\n")
1761                     (replace-match ""))
1762                   (forward-line 1))))
1763
1764           (while (not (eobp))
1765             (unless (looking-at (concat gnus-uu-begin-string "\\|"
1766                                         gnus-uu-end-string))
1767               (when (not found)
1768                 (setq length (- (point-at-eol) (point-at-bol))))
1769               (setq found t)
1770               (beginning-of-line)
1771               (setq beg (point))
1772               (end-of-line)
1773               (unless (= length (- (point) beg))
1774                 (insert (make-string (- length (- (point) beg)) ? ))))
1775             (forward-line 1)))))))
1776
1777 (defvar gnus-uu-tmp-alist nil)
1778
1779 (defun gnus-uu-initialize (&optional scan)
1780   (let (entry)
1781     (if (and (not scan)
1782              (when (setq entry (assoc gnus-newsgroup-name gnus-uu-tmp-alist))
1783                (if (file-exists-p (cdr entry))
1784                    (setq gnus-uu-work-dir (cdr entry))
1785                  (setq gnus-uu-tmp-alist (delq entry gnus-uu-tmp-alist))
1786                  nil)))
1787         t
1788       (setq gnus-uu-tmp-dir (file-name-as-directory
1789                              (expand-file-name gnus-uu-tmp-dir)))
1790       (if (not (file-directory-p gnus-uu-tmp-dir))
1791           (error "Temp directory %s doesn't exist" gnus-uu-tmp-dir)
1792         (when (not (file-writable-p gnus-uu-tmp-dir))
1793           (error "Temp directory %s can't be written to"
1794                  gnus-uu-tmp-dir)))
1795
1796       (setq gnus-uu-work-dir
1797             (mm-make-temp-file (concat gnus-uu-tmp-dir "gnus") 'dir))
1798       (gnus-set-file-modes gnus-uu-work-dir 448)
1799       (setq gnus-uu-work-dir (file-name-as-directory gnus-uu-work-dir))
1800       (push (cons gnus-newsgroup-name gnus-uu-work-dir)
1801             gnus-uu-tmp-alist))))
1802
1803
1804 ;; Kills the temporary uu buffers, kills any processes, etc.
1805 (defun gnus-uu-clean-up ()
1806   (let (buf)
1807     (and gnus-uu-uudecode-process
1808          (memq (process-status (or gnus-uu-uudecode-process "nevair"))
1809                '(stop run))
1810          (delete-process gnus-uu-uudecode-process))
1811     (when (setq buf (get-buffer gnus-uu-output-buffer-name))
1812       (kill-buffer buf))))
1813
1814 ;; Inputs an action and a filename and returns a full command, making sure
1815 ;; that the filename will be treated as a single argument when the shell
1816 ;; executes the command.
1817 (defun gnus-uu-command (action file)
1818   (let ((quoted-file (shell-quote-argument file)))
1819     (if (string-match "%s" action)
1820         (format action quoted-file)
1821       (concat action " " quoted-file))))
1822
1823 (defun gnus-uu-delete-work-dir (&optional dir)
1824   "Delete recursively all files and directories under `gnus-uu-work-dir'."
1825   (if dir
1826       (gnus-message 7 "Deleting directory %s..." dir)
1827     (setq dir gnus-uu-work-dir))
1828   (when (and dir
1829              (file-exists-p dir))
1830     (let ((files (directory-files dir t nil t))
1831           file)
1832       (while (setq file (pop files))
1833         (unless (member (file-name-nondirectory file) '("." ".."))
1834           (if (file-directory-p file)
1835               (gnus-uu-delete-work-dir file)
1836             (gnus-message 9 "Deleting file %s..." file)
1837             (condition-case err
1838                 (delete-file file)
1839               (error (gnus-message 3 "Deleting file %s failed... %s" file err))))))
1840       (condition-case err
1841           (delete-directory dir)
1842         (error (gnus-message 3 "Deleting directory %s failed... %s" file err))))
1843     (gnus-message 7 "")))
1844
1845 ;; Initializing
1846
1847 (add-hook 'gnus-exit-group-hook 'gnus-uu-clean-up)
1848 (add-hook 'gnus-exit-group-hook 'gnus-uu-delete-work-dir)
1849
1850 \f
1851
1852 ;;;
1853 ;;; uuencoded posting
1854 ;;;
1855
1856 ;; Any function that is to be used as and encoding method will take two
1857 ;; parameters: PATH-NAME and FILE-NAME.  (E.g. "/home/gaga/spiral.jpg"
1858 ;; and "spiral.jpg", respectively.) The function should return nil if
1859 ;; the encoding wasn't successful.
1860 (defcustom gnus-uu-post-encode-method 'gnus-uu-post-encode-uuencode
1861   "Function used for encoding binary files.
1862 There are three functions supplied with gnus-uu for encoding files:
1863 `gnus-uu-post-encode-uuencode', which does straight uuencoding;
1864 `gnus-uu-post-encode-mime', which encodes with base64 and adds MIME
1865 headers; and `gnus-uu-post-encode-mime-uuencode', which encodes with
1866 uuencode and adds MIME headers."
1867   :group 'gnus-extract-post
1868   :type '(radio (function-item gnus-uu-post-encode-uuencode)
1869                 (function-item gnus-uu-post-encode-mime)
1870                 (function-item gnus-uu-post-encode-mime-uuencode)
1871                 (function :tag "Other")))
1872
1873 (defcustom gnus-uu-post-include-before-composing nil
1874   "Non-nil means that gnus-uu will ask for a file to encode before you compose the article.
1875 If this variable is t, you can either include an encoded file with
1876 \\[gnus-uu-post-insert-binary-in-article] or have one included for you when you post the article."
1877   :group 'gnus-extract-post
1878   :type 'boolean)
1879
1880 (defcustom gnus-uu-post-length 990
1881   "Maximum length of an article.
1882 The encoded file will be split into how many articles it takes to
1883 post the entire file."
1884   :group 'gnus-extract-post
1885   :type 'integer)
1886
1887 (defcustom gnus-uu-post-threaded nil
1888   "Non-nil means that gnus-uu will post the encoded file in a thread.
1889 This may not be smart, as no other decoder I have seen are able to
1890 follow threads when collecting uuencoded articles.  (Well, I have seen
1891 one package that does that - gnus-uu, but somehow, I don't think that
1892 counts...)  The default is nil."
1893   :group 'gnus-extract-post
1894   :type 'boolean)
1895
1896 (defcustom gnus-uu-post-separate-description t
1897   "Non-nil means that the description will be posted in a separate article.
1898 The first article will typically be numbered (0/x).  If this variable
1899 is nil, the description the user enters will be included at the
1900 beginning of the first article, which will be numbered (1/x).  Default
1901 is t."
1902   :group 'gnus-extract-post
1903   :type 'boolean)
1904
1905 (defvar gnus-uu-post-binary-separator "--binary follows this line--")
1906 (defvar gnus-uu-post-message-id nil)
1907 (defvar gnus-uu-post-inserted-file-name nil)
1908 (defvar gnus-uu-winconf-post-news nil)
1909
1910 (defun gnus-uu-post-news ()
1911   "Compose an article and post an encoded file."
1912   (interactive)
1913   (setq gnus-uu-post-inserted-file-name nil)
1914   (setq gnus-uu-winconf-post-news (current-window-configuration))
1915
1916   (gnus-summary-post-news)
1917
1918   (let ((map (make-sparse-keymap)))
1919     (set-keymap-parent map (current-local-map))
1920     (use-local-map map))
1921   ;;(local-set-key "\C-c\C-c" 'gnus-summary-edit-article-done)
1922   (local-set-key "\C-c\C-c" 'gnus-uu-post-news-inews)
1923   (local-set-key "\C-c\C-s" 'gnus-uu-post-news-inews)
1924   (local-set-key "\C-c\C-i" 'gnus-uu-post-insert-binary-in-article)
1925
1926   (when gnus-uu-post-include-before-composing
1927     (save-excursion (setq gnus-uu-post-inserted-file-name
1928                           (gnus-uu-post-insert-binary)))))
1929
1930 (defun gnus-uu-post-insert-binary-in-article ()
1931   "Inserts an encoded file in the buffer.
1932 The user will be asked for a file name."
1933   (interactive)
1934   (save-excursion
1935     (setq gnus-uu-post-inserted-file-name (gnus-uu-post-insert-binary))))
1936
1937 ;; Encodes with uuencode and substitutes all spaces with backticks.
1938 (defun gnus-uu-post-encode-uuencode (path file-name)
1939   (when (gnus-uu-post-encode-file "uuencode" path file-name)
1940     (goto-char (point-min))
1941     (forward-line 1)
1942     (while (search-forward " " nil t)
1943       (replace-match "`"))
1944     t))
1945
1946 ;; Encodes with uuencode and adds MIME headers.
1947 (defun gnus-uu-post-encode-mime-uuencode (path file-name)
1948   (when (gnus-uu-post-encode-uuencode path file-name)
1949     (gnus-uu-post-make-mime file-name "x-uue")
1950     t))
1951
1952 ;; Encodes with base64 and adds MIME headers
1953 (defun gnus-uu-post-encode-mime (path file-name)
1954   (when (eq 0 (call-process shell-file-name nil t nil shell-command-switch
1955                             (format "%s %s -o %s" "mmencode" path file-name)))
1956     (gnus-uu-post-make-mime file-name "base64")
1957     t))
1958
1959 ;; Adds MIME headers.
1960 (defun gnus-uu-post-make-mime (file-name encoding)
1961   (goto-char (point-min))
1962   (insert (format "Content-Type: %s; name=\"%s\"\n"
1963                   (gnus-uu-choose-action file-name gnus-uu-ext-to-mime-list)
1964                   file-name))
1965   (insert (format "Content-Transfer-Encoding: %s\n\n" encoding))
1966   (save-restriction
1967     (set-buffer gnus-message-buffer)
1968     (goto-char (point-min))
1969     (re-search-forward (concat "^" (regexp-quote mail-header-separator) "$"))
1970     (forward-line -1)
1971     (narrow-to-region (point-min) (point))
1972     (unless (mail-fetch-field "mime-version")
1973       (widen)
1974       (insert "MIME-Version: 1.0\n"))
1975     (widen)))
1976
1977 ;; Encodes a file PATH with COMMAND, leaving the result in the
1978 ;; current buffer.
1979 (defun gnus-uu-post-encode-file (command path file-name)
1980   (eq 0 (call-process shell-file-name nil t nil shell-command-switch
1981                       (format "%s %s %s" command path file-name))))
1982
1983 (defun gnus-uu-post-news-inews ()
1984   "Posts the composed news article and encoded file.
1985 If no file has been included, the user will be asked for a file."
1986   (interactive)
1987
1988   (let (file-name)
1989
1990     (if gnus-uu-post-inserted-file-name
1991         (setq file-name gnus-uu-post-inserted-file-name)
1992       (setq file-name (gnus-uu-post-insert-binary)))
1993
1994     (gnus-uu-post-encoded file-name gnus-uu-post-threaded))
1995   (setq gnus-uu-post-inserted-file-name nil)
1996   (when gnus-uu-winconf-post-news
1997     (set-window-configuration gnus-uu-winconf-post-news)))
1998
1999 ;; Asks for a file to encode, encodes it and inserts the result in
2000 ;; the current buffer.  Returns the file name the user gave.
2001 (defun gnus-uu-post-insert-binary ()
2002   (let ((uuencode-buffer-name "*uuencode buffer*")
2003         file-path uubuf file-name)
2004
2005     (setq file-path (read-file-name
2006                      "What file do you want to encode? "))
2007     (when (not (file-exists-p file-path))
2008       (error "%s: No such file" file-path))
2009
2010     (goto-char (point-max))
2011     (insert (format "\n%s\n" gnus-uu-post-binary-separator))
2012
2013     ;; #### Unix-specific?
2014     (when (string-match "^~/" file-path)
2015       (setq file-path (concat "$HOME" (substring file-path 1))))
2016     ;; #### Unix-specific?
2017     (if (string-match "/[^/]*$" file-path)
2018         (setq file-name (substring file-path (1+ (match-beginning 0))))
2019       (setq file-name file-path))
2020
2021     (unwind-protect
2022         (if (with-current-buffer
2023                 (setq uubuf (gnus-get-buffer-create uuencode-buffer-name))
2024               (erase-buffer)
2025               (funcall gnus-uu-post-encode-method file-path file-name))
2026             (insert-buffer-substring uubuf)
2027           (error "Encoding unsuccessful"))
2028       (kill-buffer uubuf))
2029     file-name))
2030
2031 ;; Posts the article and all of the encoded file.
2032 (defun gnus-uu-post-encoded (file-name &optional threaded)
2033   (let ((send-buffer-name "*uuencode send buffer*")
2034         (encoded-buffer-name "*encoded buffer*")
2035         (top-string "[ cut here %s (%s %d/%d) %s gnus-uu ]")
2036         (separator (concat mail-header-separator "\n\n"))
2037         uubuf length parts header i end beg
2038         beg-line minlen post-buf whole-len beg-binary end-binary)
2039
2040     (setq post-buf (current-buffer))
2041
2042     (goto-char (point-min))
2043     (when (not (re-search-forward
2044                 (if gnus-uu-post-separate-description
2045                     (concat "^" (regexp-quote gnus-uu-post-binary-separator)
2046                             "$")
2047                   (concat "^" (regexp-quote mail-header-separator) "$"))
2048                 nil t))
2049       (error "Internal error: No binary/header separator"))
2050     (beginning-of-line)
2051     (forward-line 1)
2052     (setq beg-binary (point))
2053     (setq end-binary (point-max))
2054
2055     (with-current-buffer
2056         (setq uubuf (gnus-get-buffer-create encoded-buffer-name))
2057       (erase-buffer)
2058       (insert-buffer-substring post-buf beg-binary end-binary)
2059       (goto-char (point-min))
2060       (setq length (count-lines (point-min) (point-max)))
2061       (setq parts (/ length gnus-uu-post-length))
2062       (unless (< (% length gnus-uu-post-length) 4)
2063         (incf parts)))
2064
2065     (when gnus-uu-post-separate-description
2066       (forward-line -1))
2067     (delete-region (point) (point-max))
2068
2069     (goto-char (point-min))
2070     (re-search-forward
2071      (concat "^" (regexp-quote mail-header-separator) "$") nil t)
2072     (setq header (buffer-substring (point-min) (point-at-bol)))
2073
2074     (goto-char (point-min))
2075     (when gnus-uu-post-separate-description
2076       (when (re-search-forward "^Subject: " nil t)
2077         (end-of-line)
2078         (insert (format " (0/%d)" parts)))
2079       (save-excursion
2080         (message-send))
2081       (setq gnus-uu-post-message-id (message-fetch-field "message-id")))
2082
2083     (save-excursion
2084       (setq i 1)
2085       (setq beg 1)
2086       (while (not (> i parts))
2087         (set-buffer (gnus-get-buffer-create send-buffer-name))
2088         (erase-buffer)
2089         (insert header)
2090         (when (and threaded gnus-uu-post-message-id)
2091           (insert "References: " gnus-uu-post-message-id "\n"))
2092         (insert separator)
2093         (setq whole-len
2094               (- 62 (length (format top-string "" file-name i parts ""))))
2095         (when (> 1 (setq minlen (/ whole-len 2)))
2096           (setq minlen 1))
2097         (setq
2098          beg-line
2099          (format top-string
2100                  (make-string minlen ?-)
2101                  file-name i parts
2102                  (make-string
2103                   (if (= 0 (% whole-len 2)) (1- minlen) minlen) ?-)))
2104
2105         (goto-char (point-min))
2106         (when (re-search-forward "^Subject: " nil t)
2107           (end-of-line)
2108           (insert (format " (%d/%d)" i parts)))
2109
2110         (goto-char (point-max))
2111         (with-current-buffer uubuf
2112           (goto-char beg)
2113           (if (= i parts)
2114               (goto-char (point-max))
2115             (forward-line gnus-uu-post-length))
2116           (when (and (= (1+ i) parts) (< (count-lines (point) (point-max)) 4))
2117             (forward-line -4))
2118           (setq end (point)))
2119         (insert-buffer-substring uubuf beg end)
2120         (insert beg-line "\n")
2121         (setq beg end)
2122         (incf i)
2123         (goto-char (point-min))
2124         (re-search-forward
2125          (concat "^" (regexp-quote mail-header-separator) "$") nil t)
2126         (beginning-of-line)
2127         (forward-line 2)
2128         (when (re-search-forward
2129                (concat "^" (regexp-quote gnus-uu-post-binary-separator) "$")
2130                nil t)
2131           (replace-match "")
2132           (forward-line 1))
2133         (insert beg-line)
2134         (insert "\n")
2135         (let (message-sent-message-via)
2136           (save-excursion
2137             (message-send))
2138           (setq gnus-uu-post-message-id
2139                 (concat (message-fetch-field "references") " "
2140                         (message-fetch-field "message-id"))))))
2141
2142     (gnus-kill-buffer send-buffer-name)
2143     (gnus-kill-buffer encoded-buffer-name)
2144
2145     (when (not gnus-uu-post-separate-description)
2146       (set-buffer-modified-p nil)
2147       (bury-buffer))))
2148
2149 (provide 'gnus-uu)
2150
2151 ;;; gnus-uu.el ends here