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

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