lisp/gnus/gnus-uu.el

   1 ;;; gnus-uu.el --- extract (uu)encoded files in Gnus
   2
   3 ;; Copyright (C) 1985-1987, 1993-1998, 2000-2012
   4 ;;   Free Software 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   (setq gnus-uu-binhex-article-name
 410         (mm-make-temp-file (expand-file-name "binhex" gnus-uu-work-dir)))
 411   (gnus-uu-decode-with-method 'gnus-uu-binhex-article n dir))
 412
 413 (defun gnus-uu-decode-yenc (n dir)
 414   "Decode the yEnc-encoded current article."
 415   (interactive
 416    (list current-prefix-arg
 417          (file-name-as-directory
 418           (read-directory-name "yEnc decode and save in dir: "
 419                           gnus-uu-default-dir
 420                           gnus-uu-default-dir))))
 421   (setq gnus-uu-yenc-article-name nil)
 422   (gnus-uu-decode-with-method 'gnus-uu-yenc-article n dir nil t))
 423
 424 (defun gnus-uu-decode-uu-view (&optional n)
 425   "Uudecodes and views the current article."
 426   (interactive "P")
 427   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 428     (gnus-uu-decode-uu n)))
 429
 430 (defun gnus-uu-decode-uu-and-save-view (n dir)
 431   "Decodes, views and saves the resulting file."
 432   (interactive
 433    (list current-prefix-arg
 434          (read-file-name "Uudecode, view and save in dir: "
 435                          gnus-uu-default-dir
 436                          gnus-uu-default-dir t)))
 437   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 438     (gnus-uu-decode-uu-and-save n dir)))
 439
 440 (defun gnus-uu-decode-unshar-view (&optional n)
 441   "Unshars and views the current article."
 442   (interactive "P")
 443   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 444     (gnus-uu-decode-unshar n)))
 445
 446 (defun gnus-uu-decode-unshar-and-save-view (n dir)
 447   "Unshars and saves the current article."
 448   (interactive
 449    (list current-prefix-arg
 450          (read-file-name "Unshar, view and save in dir: "
 451                          gnus-uu-default-dir
 452                          gnus-uu-default-dir t)))
 453   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 454     (gnus-uu-decode-unshar-and-save n dir)))
 455
 456 (defun gnus-uu-decode-save-view (n file)
 457   "Saves and views the current article."
 458   (interactive
 459    (list current-prefix-arg
 460          (if gnus-uu-save-separate-articles
 461              (read-directory-name "Save articles in dir: "
 462                                   gnus-uu-default-dir gnus-uu-default-dir)
 463            (read-file-name "Save articles in file: "
 464                            gnus-uu-default-dir gnus-uu-default-dir))))
 465   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 466     (gnus-uu-decode-save n file)))
 467
 468 (defun gnus-uu-decode-binhex-view (n file)
 469   "Unbinhexes and views the current article."
 470   (interactive
 471    (list current-prefix-arg
 472          (read-file-name "Unbinhex, view and save in dir: "
 473                          gnus-uu-default-dir gnus-uu-default-dir)))
 474   (setq gnus-uu-binhex-article-name
 475         (mm-make-temp-file (expand-file-name "binhex" gnus-uu-work-dir)))
 476   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 477     (gnus-uu-decode-binhex n file)))
 478
 479
 480 ;; Digest and forward articles
 481
 482 (defun gnus-uu-digest-mail-forward (&optional n post)
 483   "Digests and forwards all articles in this series."
 484   (interactive "P")
 485   (let ((gnus-uu-save-in-digest t)
 486         (file (mm-make-temp-file (nnheader-concat gnus-uu-tmp-dir "forward")))
 487         (message-forward-as-mime message-forward-as-mime)
 488         (mail-parse-charset gnus-newsgroup-charset)
 489         (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
 490         gnus-uu-digest-buffer subject from)
 491     (if (and n (not (numberp n)))
 492         (setq message-forward-as-mime (not message-forward-as-mime)
 493               n nil))
 494     (let ((gnus-article-reply (gnus-summary-work-articles n)))
 495       (when (and (not n)
 496                  (= (length gnus-article-reply) 1))
 497         ;; The case where neither a number of articles nor a region is
 498         ;; specified.
 499         (gnus-summary-top-thread)
 500         (setq gnus-article-reply (nreverse (gnus-uu-find-articles-matching))))
 501       (gnus-setup-message 'forward
 502         (setq gnus-uu-digest-from-subject nil)
 503         (setq gnus-uu-digest-buffer
 504               (gnus-get-buffer-create " *gnus-uu-forward*"))
 505         ;; Specify articles to be forwarded.  Note that they should be
 506         ;; reversed; see `gnus-uu-get-list-of-articles'.
 507         (let ((gnus-newsgroup-processable (reverse gnus-article-reply)))
 508           (gnus-uu-decode-save n file)
 509           (setq gnus-article-reply gnus-newsgroup-processable))
 510         ;; Restore the value of `gnus-newsgroup-processable' to which
 511         ;; it should be set when it is not `let'-bound.
 512         (setq gnus-newsgroup-processable (reverse gnus-article-reply))
 513         (switch-to-buffer gnus-uu-digest-buffer)
 514         (let ((fs gnus-uu-digest-from-subject))
 515           (when fs
 516             (setq from (caar fs)
 517                   subject (gnus-simplify-subject-fuzzy (cdar fs))
 518                   fs (cdr fs))
 519             (while (and fs (or from subject))
 520               (when from
 521                 (unless (string= from (caar fs))
 522                   (setq from nil)))
 523               (when subject
 524                 (unless (string= (gnus-simplify-subject-fuzzy (cdar fs))
 525                                  subject)
 526                   (setq subject nil)))
 527               (setq fs (cdr fs))))
 528           (unless subject
 529             (setq subject "Digested Articles"))
 530           (unless from
 531             (setq from
 532                   (if (gnus-news-group-p gnus-newsgroup-name)
 533                       gnus-newsgroup-name
 534                     "Various"))))
 535         (goto-char (point-min))
 536         (when (re-search-forward "^Subject: ")
 537           (delete-region (point) (point-at-eol))
 538           (insert subject))
 539         (goto-char (point-min))
 540         (when (re-search-forward "^From:")
 541           (delete-region (point) (point-at-eol))
 542           (insert " " from))
 543         (let ((message-forward-decoded-p t))
 544           (message-forward post t))))
 545     (setq gnus-uu-digest-from-subject nil)))
 546
 547 (defun gnus-uu-digest-post-forward (&optional n)
 548   "Digest and forward to a newsgroup."
 549   (interactive "P")
 550   (gnus-uu-digest-mail-forward n t))
 551
 552 ;; Process marking.
 553
 554 (defun gnus-message-process-mark (unmarkp new-marked)
 555   (let ((old (- (length gnus-newsgroup-processable) (length new-marked))))
 556     (gnus-message 6 "%d mark%s %s%s"
 557                   (length new-marked)
 558                   (if (= (length new-marked) 1) "" "s")
 559                   (if unmarkp "removed" "added")
 560                   (cond
 561                    ((and (zerop old)
 562                          (not unmarkp))
 563                     "")
 564                    (unmarkp
 565                     (format ", %d remain marked"
 566                             (length gnus-newsgroup-processable)))
 567                    (t
 568                     (format ", %d already marked" old))))))
 569
 570 (defun gnus-new-processable (unmarkp articles)
 571   (if unmarkp
 572       (gnus-intersection gnus-newsgroup-processable articles)
 573     (gnus-set-difference articles gnus-newsgroup-processable)))
 574
 575 (defun gnus-uu-mark-by-regexp (regexp &optional unmark)
 576   "Set the process mark on articles whose subjects match REGEXP.
 577 When called interactively, prompt for REGEXP.
 578 Optional UNMARK non-nil means unmark instead of mark."
 579   (interactive "sMark (regexp): \nP")
 580   (save-excursion
 581     (let* ((articles (gnus-uu-find-articles-matching regexp))
 582            (new-marked (gnus-new-processable unmark articles)))
 583       (while articles
 584         (if unmark
 585             (gnus-summary-remove-process-mark (pop articles))
 586           (gnus-summary-set-process-mark (pop articles))))
 587       (gnus-message-process-mark unmark new-marked)))
 588   (gnus-summary-position-point))
 589
 590 (defun gnus-uu-unmark-by-regexp (regexp)
 591   "Remove the process mark from articles whose subjects match REGEXP.
 592 When called interactively, prompt for REGEXP."
 593   (interactive "sUnmark (regexp): ")
 594   (gnus-uu-mark-by-regexp regexp t))
 595
 596 (defun gnus-uu-mark-series (&optional silent)
 597   "Mark the current series with the process mark."
 598   (interactive)
 599   (let* ((articles (gnus-uu-find-articles-matching))
 600          (l (length articles)))
 601     (while articles
 602       (gnus-summary-set-process-mark (car articles))
 603       (setq articles (cdr articles)))
 604     (unless silent
 605       (gnus-message 6 "Marked %d articles" l))
 606     (gnus-summary-position-point)
 607     l))
 608
 609 (defun gnus-uu-mark-region (beg end &optional unmark)
 610   "Set the process mark on all articles between point and mark."
 611   (interactive "r")
 612   (save-excursion
 613     (goto-char beg)
 614     (while (< (point) end)
 615       (if unmark
 616           (gnus-summary-remove-process-mark (gnus-summary-article-number))
 617         (gnus-summary-set-process-mark (gnus-summary-article-number)))
 618       (forward-line 1)))
 619   (gnus-summary-position-point))
 620
 621 (defun gnus-uu-unmark-region (beg end)
 622   "Remove the process mark from all articles between point and mark."
 623   (interactive "r")
 624   (gnus-uu-mark-region beg end t))
 625
 626 (defun gnus-uu-mark-buffer ()
 627   "Set the process mark on all articles in the buffer."
 628   (interactive)
 629   (gnus-uu-mark-region (point-min) (point-max)))
 630
 631 (defun gnus-uu-unmark-buffer ()
 632   "Remove the process mark on all articles in the buffer."
 633   (interactive)
 634   (gnus-uu-mark-region (point-min) (point-max) t))
 635
 636 (defun gnus-uu-mark-thread ()
 637   "Marks all articles downwards in this thread."
 638   (interactive)
 639   (gnus-save-hidden-threads
 640     (let ((level (gnus-summary-thread-level)))
 641       (while (and (gnus-summary-set-process-mark
 642                    (gnus-summary-article-number))
 643                   (zerop (gnus-summary-next-subject 1 nil t))
 644                   (> (gnus-summary-thread-level) level)))))
 645   (gnus-summary-position-point))
 646
 647 (defun gnus-uu-unmark-thread ()
 648   "Unmarks all articles downwards in this thread."
 649   (interactive)
 650   (let ((level (gnus-summary-thread-level)))
 651     (while (and (gnus-summary-remove-process-mark
 652                  (gnus-summary-article-number))
 653                 (zerop (gnus-summary-next-subject 1))
 654                 (> (gnus-summary-thread-level) level))))
 655   (gnus-summary-position-point))
 656
 657 (defun gnus-uu-invert-processable ()
 658   "Invert the list of process-marked articles."
 659   (interactive)
 660   (let ((data gnus-newsgroup-data)
 661         number)
 662     (save-excursion
 663       (while data
 664         (if (memq (setq number (gnus-data-number (pop data)))
 665                   gnus-newsgroup-processable)
 666             (gnus-summary-remove-process-mark number)
 667           (gnus-summary-set-process-mark number)))))
 668   (gnus-summary-position-point))
 669
 670 (defun gnus-uu-mark-over (&optional score)
 671   "Mark all articles with a score over SCORE (the prefix)."
 672   (interactive "P")
 673   (let ((score (or score gnus-summary-default-score 0))
 674         (data gnus-newsgroup-data))
 675     (save-excursion
 676       (while data
 677         (when (> (or (cdr (assq (gnus-data-number (car data))
 678                                 gnus-newsgroup-scored))
 679                      gnus-summary-default-score 0)
 680                  score)
 681           (gnus-summary-set-process-mark (caar data)))
 682         (setq data (cdr data))))
 683     (gnus-summary-position-point)))
 684
 685 (defun gnus-uu-mark-sparse ()
 686   "Mark all series that have some articles marked."
 687   (interactive)
 688   (let ((marked (nreverse gnus-newsgroup-processable))
 689         subject articles total headers)
 690     (unless marked
 691       (error "No articles marked with the process mark"))
 692     (setq gnus-newsgroup-processable nil)
 693     (save-excursion
 694       (while marked
 695         (and (vectorp (setq headers
 696                             (gnus-summary-article-header (car marked))))
 697              (setq subject (mail-header-subject headers)
 698                    articles (gnus-uu-find-articles-matching
 699                              (gnus-uu-reginize-string subject))
 700                    total (nconc total articles)))
 701         (while articles
 702           (gnus-summary-set-process-mark (car articles))
 703           (setcdr marked (delq (car articles) (cdr marked)))
 704           (setq articles (cdr articles)))
 705         (setq marked (cdr marked)))
 706       (setq gnus-newsgroup-processable (nreverse total)))
 707     (gnus-summary-position-point)))
 708
 709 (defun gnus-uu-mark-all ()
 710   "Mark all articles in \"series\" order."
 711   (interactive)
 712   (setq gnus-newsgroup-processable nil)
 713   (save-excursion
 714     (let ((data gnus-newsgroup-data)
 715           (count 0)
 716           number)
 717       (while data
 718         (when (and (not (memq (setq number (gnus-data-number (car data)))
 719                               gnus-newsgroup-processable))
 720                    (vectorp (gnus-data-header (car data))))
 721           (gnus-summary-goto-subject number)
 722           (setq count (+ count (gnus-uu-mark-series t))))
 723         (setq data (cdr data)))
 724       (gnus-message 6 "Marked %d articles" count)))
 725   (gnus-summary-position-point))
 726
 727 ;; All PostScript functions written by Erik Selberg <speed@cs.washington.edu>.
 728
 729 (defun gnus-uu-decode-postscript (&optional n)
 730   "Gets PostScript of the current article."
 731   (interactive "P")
 732   (gnus-uu-decode-with-method 'gnus-uu-decode-postscript-article n))
 733
 734 (defun gnus-uu-decode-postscript-view (&optional n)
 735   "Gets and views the current article."
 736   (interactive "P")
 737   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 738     (gnus-uu-decode-postscript n)))
 739
 740 (defun gnus-uu-decode-postscript-and-save (n dir)
 741   "Extracts PostScript and saves the current article."
 742   (interactive
 743    (list current-prefix-arg
 744          (file-name-as-directory
 745           (read-directory-name "Save in dir: "
 746                           gnus-uu-default-dir
 747                           gnus-uu-default-dir t))))
 748   (gnus-uu-decode-with-method 'gnus-uu-decode-postscript-article
 749                               n dir nil nil t))
 750
 751 (defun gnus-uu-decode-postscript-and-save-view (n dir)
 752   "Decodes, views and saves the resulting file."
 753   (interactive
 754    (list current-prefix-arg
 755          (read-file-name "Where do you want to save the file(s)? "
 756                          gnus-uu-default-dir
 757                          gnus-uu-default-dir t)))
 758   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 759     (gnus-uu-decode-postscript-and-save n dir)))
 760
 761
 762 ;; Internal functions.
 763
 764 (defun gnus-uu-decode-with-method (method n &optional save not-insert
 765                                           scan cdir)
 766   (gnus-uu-initialize scan)
 767   (when save
 768     (setq gnus-uu-default-dir save))
 769   ;; Create the directory we save to.
 770   (when (and scan cdir save
 771              (not (file-exists-p save)))
 772     (make-directory save t))
 773   (let ((articles (gnus-uu-get-list-of-articles n))
 774         files)
 775     (setq files (gnus-uu-grab-articles articles method t))
 776     (let ((gnus-current-article (car articles)))
 777       (when scan
 778         (setq files (gnus-uu-scan-directory gnus-uu-work-dir))))
 779     (when save
 780       (gnus-uu-save-files files save))
 781     (when (eq gnus-uu-do-not-unpack-archives nil)
 782       (setq files (gnus-uu-unpack-files files)))
 783     (setq files (nreverse (gnus-uu-get-actions files)))
 784     (or not-insert (not gnus-insert-pseudo-articles)
 785         (gnus-summary-insert-pseudos files save))))
 786
 787 (defun gnus-uu-scan-directory (dir &optional rec)
 788   "Return a list of all files under DIR."
 789   (let ((files (directory-files dir t))
 790         out file)
 791     (while (setq file (pop files))
 792       (unless (member (file-name-nondirectory file) '("." ".."))
 793         (push (list (cons 'name file)
 794                     (cons 'article gnus-current-article))
 795               out)
 796         (when (file-directory-p file)
 797           (setq out (nconc (gnus-uu-scan-directory file t) out)))))
 798     (if rec
 799         out
 800       (nreverse out))))
 801
 802 (defun gnus-uu-save-files (files dir)
 803   "Save FILES in DIR."
 804   (let ((len (length files))
 805         (reg (concat "^" (regexp-quote gnus-uu-work-dir)))
 806         to-file file fromdir)
 807     (while (setq file (cdr (assq 'name (pop files))))
 808       (when (file-exists-p file)
 809         (string-match reg file)
 810         (setq fromdir (substring file (match-end 0)))
 811         (if (file-directory-p file)
 812             (gnus-make-directory (concat dir fromdir))
 813           (setq to-file (concat dir fromdir))
 814           (when (or (not (file-exists-p to-file))
 815                     (eq gnus-uu-be-dangerous t)
 816                     (and gnus-uu-be-dangerous
 817                          (gnus-y-or-n-p (format "%s exists; overwrite? "
 818                                                 to-file))))
 819             (copy-file file to-file t t)))))
 820     (gnus-message 5 "Saved %d file%s" len (if (= len 1) "" "s"))))
 821
 822 ;; Functions for saving and possibly digesting articles without
 823 ;; any decoding.
 824
 825 ;; Function called by gnus-uu-grab-articles to treat each article.
 826 (defun gnus-uu-save-article (buffer in-state)
 827   (cond
 828    (gnus-uu-save-separate-articles
 829     (with-current-buffer buffer
 830       (let ((coding-system-for-write mm-text-coding-system))
 831         (gnus-write-buffer
 832          (concat gnus-uu-saved-article-name gnus-current-article)))
 833       (cond ((eq in-state 'first) (list gnus-uu-saved-article-name 'begin))
 834             ((eq in-state 'first-and-last) (list gnus-uu-saved-article-name
 835                                                  'begin 'end))
 836             ((eq in-state 'last) (list 'end))
 837             (t (list 'middle)))))
 838    ((not gnus-uu-save-in-digest)
 839     (with-current-buffer buffer
 840       (write-region (point-min) (point-max) gnus-uu-saved-article-name t)
 841       (cond ((eq in-state 'first) (list gnus-uu-saved-article-name 'begin))
 842             ((eq in-state 'first-and-last) (list gnus-uu-saved-article-name
 843                                                  'begin 'end))
 844             ((eq in-state 'last) (list 'end))
 845             (t (list 'middle)))))
 846    (t
 847     (let ((header (gnus-summary-article-header)))
 848       (push (cons (mail-header-from header)
 849                   (mail-header-subject header))
 850             gnus-uu-digest-from-subject))
 851     (let ((name (file-name-nondirectory gnus-uu-saved-article-name))
 852           beg subj headers headline sorthead body end-string state)
 853       (if (or (eq in-state 'first)
 854               (eq in-state 'first-and-last))
 855           (progn
 856             (setq state (list 'begin))
 857             (with-current-buffer (gnus-get-buffer-create "*gnus-uu-body*")
 858               (erase-buffer))
 859             (with-current-buffer (gnus-get-buffer-create "*gnus-uu-pre*")
 860               (erase-buffer)
 861               (insert (format
 862                        "Date: %s\nFrom: %s\nSubject: %s Digest\n\n"
 863                        (message-make-date) name name))
 864               (when (and message-forward-as-mime gnus-uu-digest-buffer)
 865                 (insert
 866                  "<#mml type=message/rfc822>\nSubject: Topics\n\n<#/mml>\n")
 867                 (forward-line -1))
 868               (insert "Topics:\n")))
 869         (when (not (eq in-state 'end))
 870           (setq state (list 'middle))))
 871       (with-current-buffer "*gnus-uu-body*"
 872         (goto-char (setq beg (point-max)))
 873         (save-excursion
 874           (save-restriction
 875             (set-buffer buffer)
 876             (let (buffer-read-only)
 877               (set-text-properties (point-min) (point-max) nil)
 878               ;; These two are necessary for XEmacs 19.12 fascism.
 879               (put-text-property (point-min) (point-max) 'invisible nil)
 880               (put-text-property (point-min) (point-max) 'intangible nil))
 881             (when (and message-forward-as-mime
 882                        message-forward-show-mml
 883                        gnus-uu-digest-buffer)
 884               (mm-enable-multibyte)
 885               (mime-to-mml))
 886             (goto-char (point-min))
 887             (search-forward "\n\n")
 888             (unless (and message-forward-as-mime gnus-uu-digest-buffer)
 889               ;; Quote all 30-dash lines.
 890               (save-excursion
 891                 (while (re-search-forward "^-" nil t)
 892                   (beginning-of-line)
 893                   (delete-char 1)
 894                   (insert "- "))))
 895             (setq body (buffer-substring (1- (point)) (point-max)))
 896             (narrow-to-region (point-min) (point))
 897             (if (not (setq headers gnus-uu-digest-headers))
 898                 (setq sorthead (buffer-string))
 899               (while headers
 900                 (setq headline (car headers))
 901                 (setq headers (cdr headers))
 902                 (goto-char (point-min))
 903                 (while (re-search-forward headline nil t)
 904                   (setq sorthead
 905                         (concat sorthead
 906                                 (buffer-substring
 907                                  (match-beginning 0)
 908                                  (or (and (re-search-forward "^[^ \t]" nil t)
 909                                           (1- (point)))
 910                                      (progn (forward-line 1) (point)))))))))
 911             (widen)))
 912         (if (and message-forward-as-mime gnus-uu-digest-buffer)
 913           (if message-forward-show-mml
 914               (progn
 915                 (insert "\n<#mml type=message/rfc822>\n")
 916                 (insert sorthead) (goto-char (point-max))
 917                 (insert body) (goto-char (point-max))
 918                 (insert "\n<#/mml>\n"))
 919             (let ((buf (mml-generate-new-buffer " *mml*")))
 920               (with-current-buffer buf
 921                 (insert sorthead)
 922                 (goto-char (point-min))
 923                 (when (re-search-forward "^Subject: \\(.*\\)$" nil t)
 924                   (setq subj (buffer-substring (match-beginning 1)
 925                                                (match-end 1))))
 926                 (goto-char (point-max))
 927                 (insert body))
 928               (insert "\n<#part type=message/rfc822"
 929                       " buffer=\"" (buffer-name buf) "\">\n")))
 930           (insert sorthead) (goto-char (point-max))
 931           (insert body) (goto-char (point-max))
 932           (insert (concat "\n" (make-string 30 ?-) "\n\n")))
 933         (goto-char beg)
 934         (when (re-search-forward "^Subject: \\(.*\\)$" nil t)
 935           (setq subj (buffer-substring (match-beginning 1) (match-end 1))))
 936         (when subj
 937           (with-current-buffer "*gnus-uu-pre*"
 938             (insert (format "   %s\n" subj)))))
 939       (when (or (eq in-state 'last)
 940                 (eq in-state 'first-and-last))
 941         (if (and message-forward-as-mime gnus-uu-digest-buffer)
 942             (with-current-buffer gnus-uu-digest-buffer
 943               (erase-buffer)
 944               (insert-buffer-substring "*gnus-uu-pre*")
 945               (goto-char (point-max))
 946               (insert-buffer-substring "*gnus-uu-body*"))
 947           (with-current-buffer "*gnus-uu-pre*"
 948             (insert (format "\n\n%s\n\n" (make-string 70 ?-)))
 949             (if gnus-uu-digest-buffer
 950                 (with-current-buffer gnus-uu-digest-buffer
 951                   (erase-buffer)
 952                   (insert-buffer-substring "*gnus-uu-pre*"))
 953               (let ((coding-system-for-write mm-text-coding-system))
 954                 (gnus-write-buffer gnus-uu-saved-article-name))))
 955           (with-current-buffer "*gnus-uu-body*"
 956             (goto-char (point-max))
 957             (insert
 958              (concat (setq end-string (format "End of %s Digest" name))
 959                      "\n"))
 960             (insert (concat (make-string (length end-string) ?*) "\n"))
 961             (if gnus-uu-digest-buffer
 962                 (with-current-buffer gnus-uu-digest-buffer
 963                   (goto-char (point-max))
 964                   (insert-buffer-substring "*gnus-uu-body*"))
 965               (let ((coding-system-for-write mm-text-coding-system)
 966                     (file-name-coding-system nnmail-pathname-coding-system))
 967                 (write-region
 968                  (point-min) (point-max) gnus-uu-saved-article-name t)))))
 969         (gnus-kill-buffer "*gnus-uu-pre*")
 970         (gnus-kill-buffer "*gnus-uu-body*")
 971         (push 'end state))
 972       (if (memq 'begin state)
 973           (cons gnus-uu-saved-article-name state)
 974         state)))))
 975
 976 ;; Binhex treatment - not very advanced.
 977
 978 (defvar gnus-uu-binhex-body-line
 979   "^[^:]...............................................................$")
 980 (defvar gnus-uu-binhex-begin-line
 981   "^:...............................................................$")
 982 (defvar gnus-uu-binhex-end-line
 983   ":$")
 984
 985 (defun gnus-uu-binhex-article (buffer in-state)
 986   (let (state start-char)
 987     (with-current-buffer buffer
 988       (widen)
 989       (goto-char (point-min))
 990       (when (not (re-search-forward gnus-uu-binhex-begin-line nil t))
 991         (when (not (re-search-forward gnus-uu-binhex-body-line nil t))
 992           (setq state (list 'wrong-type))))
 993
 994       (if (memq 'wrong-type state)
 995           ()
 996         (beginning-of-line)
 997         (setq start-char (point))
 998         (if (looking-at gnus-uu-binhex-begin-line)
 999             (progn
1000               (setq state (list 'begin))
1001               (write-region (point-min) (point-min)
1002                             gnus-uu-binhex-article-name))
1003           (setq state (list 'middle)))
1004         (goto-char (point-max))
1005         (re-search-backward (concat gnus-uu-binhex-body-line "\\|"
1006                                     gnus-uu-binhex-end-line)
1007                             nil t)
1008         (when (looking-at gnus-uu-binhex-end-line)
1009           (setq state (if (memq 'begin state)
1010                           (cons 'end state)
1011                         (list 'end))))
1012         (beginning-of-line)
1013         (forward-line 1)
1014         (when (file-exists-p gnus-uu-binhex-article-name)
1015           (mm-append-to-file start-char (point) gnus-uu-binhex-article-name))))
1016     (if (memq 'begin state)
1017         (cons gnus-uu-binhex-article-name state)
1018       state)))
1019
1020 ;; yEnc
1021
1022 (defun gnus-uu-yenc-article (buffer in-state)
1023   (with-current-buffer gnus-original-article-buffer
1024     (widen)
1025     (let ((file-name (yenc-extract-filename))
1026           state start-char)
1027       (when (not file-name)
1028         (setq state (list 'wrong-type)))
1029
1030       (if (memq 'wrong-type state)
1031           ()
1032         (when (yenc-first-part-p)
1033           (setq gnus-uu-yenc-article-name
1034                 (expand-file-name file-name gnus-uu-work-dir))
1035           (push 'begin state))
1036         (when (yenc-last-part-p)
1037           (push 'end state))
1038         (unless state
1039           (push 'middle state))
1040         (mm-with-unibyte-buffer
1041           (insert-buffer-substring gnus-original-article-buffer)
1042           (yenc-decode-region (point-min) (point-max))
1043           (when (and (member 'begin state)
1044                      (file-exists-p gnus-uu-yenc-article-name))
1045             (delete-file gnus-uu-yenc-article-name))
1046           (mm-append-to-file (point-min) (point-max)
1047                              gnus-uu-yenc-article-name)))
1048       (if (memq 'begin state)
1049           (cons file-name state)
1050         state))))
1051
1052 ;; PostScript
1053
1054 (defun gnus-uu-decode-postscript-article (process-buffer in-state)
1055   (let ((state (list 'ok))
1056         start-char end-char file-name)
1057     (with-current-buffer process-buffer
1058       (goto-char (point-min))
1059       (if (not (re-search-forward gnus-uu-postscript-begin-string nil t))
1060           (setq state (list 'wrong-type))
1061         (beginning-of-line)
1062         (setq start-char (point))
1063         (if (not (re-search-forward gnus-uu-postscript-end-string nil t))
1064             (setq state (list 'wrong-type))
1065           (setq end-char (point))
1066           (set-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name))
1067           (insert-buffer-substring process-buffer start-char end-char)
1068           (setq file-name (concat gnus-uu-work-dir
1069                                   (cdr gnus-article-current) ".ps"))
1070           (write-region (point-min) (point-max) file-name)
1071           (setq state (list file-name 'begin 'end)))))
1072     state))
1073
1074
1075 ;; Find actions.
1076
1077 (defun gnus-uu-get-actions (files)
1078   (let ((ofiles files)
1079         action name)
1080     (while files
1081       (setq name (cdr (assq 'name (car files))))
1082       (and
1083        (setq action (gnus-uu-get-action name))
1084        (setcar files (nconc (list (if (string= action "gnus-uu-archive")
1085                                       (cons 'action "file")
1086                                     (cons 'action action))
1087                                   (cons 'execute (gnus-uu-command
1088                                                   action name)))
1089                             (car files))))
1090       (setq files (cdr files)))
1091     ofiles))
1092
1093 (defun gnus-uu-get-action (file-name)
1094   (let (action)
1095     (setq action
1096           (gnus-uu-choose-action
1097            file-name
1098            (append
1099             gnus-uu-user-view-rules
1100             (if gnus-uu-ignore-default-view-rules
1101                 nil
1102               gnus-uu-default-view-rules)
1103             gnus-uu-user-view-rules-end)))
1104     (when (and (not (string= (or action "") "gnus-uu-archive"))
1105                gnus-uu-view-with-metamail)
1106       (when (setq action
1107                   (gnus-uu-choose-action file-name gnus-uu-ext-to-mime-list))
1108         (setq action (format "metamail -d -b -c \"%s\"" action))))
1109     action))
1110
1111
1112 ;; Functions for treating subjects and collecting series.
1113
1114 (defun gnus-uu-reginize-string (string)
1115   ;; Takes a string and puts a \ in front of every special character;
1116   ;; replaces the last thing that looks like "2/3" with "[0-9]+/3"
1117   ;; or, if it can't find something like that, tries "2 of 3", then
1118   ;; finally just replaces the next to last number with "[0-9]+".
1119   (with-current-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name)
1120     (buffer-disable-undo)
1121     (erase-buffer)
1122     (insert (regexp-quote string))
1123
1124     (setq case-fold-search nil)
1125
1126     (end-of-line)
1127     (if (re-search-backward "\\([^0-9]\\)[0-9]+/\\([0-9]+\\)" nil t)
1128         (replace-match "\\1[0-9]+/\\2")
1129
1130       (end-of-line)
1131       (if (re-search-backward "\\([^0-9]\\)[0-9]+[ \t]*of[ \t]*\\([0-9]+\\)"
1132                               nil t)
1133           (replace-match "\\1[0-9]+ of \\2")
1134
1135         (end-of-line)
1136         (if (re-search-backward "\\([^0-9]\\)[0-9]+\\([^0-9]+\\)[0-9]+"
1137                                 nil t)
1138             (replace-match "\\1[0-9]+\\2[0-9]+" t nil nil nil))))
1139
1140     (goto-char (point-min))
1141     (while (re-search-forward "[ \t]+" nil t)
1142       (replace-match "[ \t]+" t t))
1143
1144     (buffer-string)))
1145
1146 (defun gnus-uu-get-list-of-articles (n)
1147   ;; If N is non-nil, the article numbers of the N next articles
1148   ;; will be returned.
1149   ;; If any articles have been marked as processable, they will be
1150   ;; returned.
1151   ;; Failing that, articles that have subjects that are part of the
1152   ;; same "series" as the current will be returned.
1153   (let (articles)
1154     (cond
1155      (n
1156       (setq n (prefix-numeric-value n))
1157       (let ((backward (< n 0))
1158             (n (abs n)))
1159         (save-excursion
1160           (while (and (> n 0)
1161                       (push (gnus-summary-article-number)
1162                             articles)
1163                       (gnus-summary-search-forward nil nil backward))
1164             (setq n (1- n))))
1165         (nreverse articles)))
1166      (gnus-newsgroup-processable
1167       (reverse gnus-newsgroup-processable))
1168      (t
1169       (gnus-uu-find-articles-matching)))))
1170
1171 (defun gnus-uu-string< (l1 l2)
1172   (string< (car l1) (car l2)))
1173
1174 (defun gnus-uu-find-articles-matching
1175   (&optional subject only-unread do-not-translate)
1176   ;; Finds all articles that matches the regexp SUBJECT.  If it is
1177   ;; nil, the current article name will be used.  If ONLY-UNREAD is
1178   ;; non-nil, only unread articles are chosen.  If DO-NOT-TRANSLATE is
1179   ;; non-nil, article names are not equalized before sorting.
1180   (let ((subject (or subject
1181                      (gnus-uu-reginize-string (gnus-summary-article-subject))))
1182         list-of-subjects)
1183     (save-excursion
1184       (when subject
1185         ;; Collect all subjects matching subject.
1186         (let ((case-fold-search t)
1187               (data gnus-newsgroup-data)
1188               subj mark d)
1189           (while data
1190             (setq d (pop data))
1191             (and (not (gnus-data-pseudo-p d))
1192                  (or (not only-unread)
1193                      (= (setq mark (gnus-data-mark d))
1194                         gnus-unread-mark)
1195                      (= mark gnus-ticked-mark)
1196                      (= mark gnus-dormant-mark))
1197                  (setq subj (mail-header-subject (gnus-data-header d)))
1198                  (string-match subject subj)
1199                  (push (cons subj (gnus-data-number d))
1200                        list-of-subjects))))
1201
1202         ;; Expand numbers, sort, and return the list of article
1203         ;; numbers.
1204         (mapcar 'cdr
1205                 (sort (gnus-uu-expand-numbers
1206                        list-of-subjects
1207                        (not do-not-translate))
1208                       'gnus-uu-string<))))))
1209
1210 (defun gnus-uu-expand-numbers (string-list &optional translate)
1211   ;; Takes a list of strings and "expands" all numbers in all the
1212   ;; strings.  That is, this function makes all numbers equal length by
1213   ;; prepending lots of zeroes before each number.  This is to ease later
1214   ;; sorting to find out what sequence the articles are supposed to be
1215   ;; decoded in.  Returns the list of expanded strings.
1216   (let ((out-list string-list)
1217         string)
1218     (with-current-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name)
1219       (buffer-disable-undo)
1220       (while string-list
1221         (erase-buffer)
1222         (insert (caar string-list))
1223         ;; Translate multiple spaces to one space.
1224         (goto-char (point-min))
1225         (while (re-search-forward "[ \t]+" nil t)
1226           (replace-match " "))
1227         ;; Translate all characters to "a".
1228         (goto-char (point-min))
1229         (when translate
1230           (while (re-search-forward "[A-Za-z]" nil t)
1231             (replace-match "a" t t)))
1232         ;; Expand numbers.
1233         (goto-char (point-min))
1234         (while (re-search-forward "[0-9]+" nil t)
1235           (ignore-errors
1236             (replace-match
1237              (format "%06d"
1238                      (string-to-number (buffer-substring
1239                                      (match-beginning 0) (match-end 0)))))))
1240         (setq string (buffer-substring (point-min) (point-max)))
1241         (setcar (car string-list) string)
1242         (setq string-list (cdr string-list))))
1243     out-list))
1244
1245
1246 ;; `gnus-uu-grab-articles' is the general multi-article treatment
1247 ;; function.  It takes a list of articles to be grabbed and a function
1248 ;; to apply to each article.
1249 ;;
1250 ;; The function to be called should take two parameters.  The first
1251 ;; parameter is the article buffer.  The function should leave the
1252 ;; result, if any, in this buffer.  Most treatment functions will just
1253 ;; generate files...
1254 ;;
1255 ;; The second parameter is the state of the list of articles, and can
1256 ;; have four values: `first', `middle', `last' and `first-and-last'.
1257 ;;
1258 ;; The function should return a list.  The list may contain the
1259 ;; following symbols:
1260 ;; `error' if an error occurred
1261 ;; `begin' if the beginning of an encoded file has been received
1262 ;;   If the list returned contains a `begin', the first element of
1263 ;;   the list *must* be a string with the file name of the decoded
1264 ;;   file.
1265 ;; `end' if the end of an encoded file has been received
1266 ;; `middle' if the article was a body part of an encoded file
1267 ;; `wrong-type' if the article was not a part of an encoded file
1268 ;; `ok', which can be used everything is ok
1269
1270 (defvar gnus-uu-has-been-grabbed nil)
1271
1272 (defun gnus-uu-unmark-list-of-grabbed (&optional dont-unmark-last-article)
1273   (let (art)
1274     (if (not (and gnus-uu-has-been-grabbed
1275                   gnus-uu-unmark-articles-not-decoded))
1276         ()
1277       (when dont-unmark-last-article
1278         (setq art (car gnus-uu-has-been-grabbed))
1279         (setq gnus-uu-has-been-grabbed (cdr gnus-uu-has-been-grabbed)))
1280       (while gnus-uu-has-been-grabbed
1281         (gnus-summary-tick-article (car gnus-uu-has-been-grabbed) t)
1282         (setq gnus-uu-has-been-grabbed (cdr gnus-uu-has-been-grabbed)))
1283       (when dont-unmark-last-article
1284         (setq gnus-uu-has-been-grabbed (list art))))))
1285
1286 ;; This function takes a list of articles and a function to apply to
1287 ;; each article grabbed.
1288 ;;
1289 ;; This function returns a list of files decoded if the grabbing and
1290 ;; the process-function has been successful and nil otherwise.
1291 (defun gnus-uu-grab-articles (articles process-function
1292                                        &optional sloppy limit no-errors)
1293   (require 'gnus-async)
1294   (let ((state 'first)
1295         (gnus-asynchronous nil)
1296         (gnus-inhibit-treatment t)
1297         has-been-begin article result-file result-files process-state
1298         gnus-summary-display-article-function
1299         gnus-article-prepare-hook gnus-display-mime-function
1300         article-series files)
1301
1302     (while (and articles
1303                 (not (memq 'error process-state))
1304                 (or sloppy
1305                     (not (memq 'end process-state))))
1306
1307       (setq article (pop articles))
1308       (when (vectorp (gnus-summary-article-header article))
1309         (push article article-series)
1310
1311         (unless articles
1312           (if (eq state 'first)
1313               (setq state 'first-and-last)
1314             (setq state 'last)))
1315
1316         (let ((part (gnus-uu-part-number article)))
1317           (gnus-message 6 "Getting article %d%s..."
1318                         article (if (string= part "") "" (concat ", " part))))
1319         (gnus-summary-display-article article)
1320
1321         ;; Push the article to the processing function.
1322         (with-current-buffer gnus-original-article-buffer
1323           (let ((buffer-read-only nil))
1324             (with-current-buffer gnus-summary-buffer
1325               (setq process-state
1326                     (funcall process-function
1327                              gnus-original-article-buffer state)))))
1328
1329         (gnus-summary-remove-process-mark article)
1330
1331         ;; If this is the beginning of a decoded file, we push it
1332         ;; on to a list.
1333         (when (or (memq 'begin process-state)
1334                   (and (or (eq state 'first)
1335                            (eq state 'first-and-last))
1336                        (memq 'ok process-state)))
1337           (when has-been-begin
1338             ;; If there is a `result-file' here, that means that the
1339             ;; file was unsuccessfully decoded, so we delete it.
1340             (when (and result-file
1341                        (file-exists-p result-file)
1342                        (not gnus-uu-be-dangerous)
1343                        (or (eq gnus-uu-be-dangerous t)
1344                            (gnus-y-or-n-p
1345                             (format "Delete unsuccessfully decoded file %s? "
1346                                     result-file))))
1347               (delete-file result-file)))
1348           (when (memq 'begin process-state)
1349             (setq result-file (car process-state)))
1350           (setq has-been-begin t))
1351
1352         ;; Check whether we have decoded one complete file.
1353         (when (memq 'end process-state)
1354           (setq article-series nil)
1355           (setq has-been-begin nil)
1356           (if (stringp result-file)
1357               (setq files (list result-file))
1358             (setq files result-file))
1359           (setq result-file (car files))
1360           (while files
1361             (push (list (cons 'name (pop files))
1362                         (cons 'article article))
1363                   result-files))
1364           ;; Allow user-defined functions to be run on this file.
1365           (when gnus-uu-grabbed-file-functions
1366             (let ((funcs gnus-uu-grabbed-file-functions))
1367               (unless (listp funcs)
1368                 (setq funcs (list funcs)))
1369               (while funcs
1370                 (funcall (pop funcs) result-file))))
1371           (setq result-file nil)
1372           ;; Check whether we have decoded enough articles.
1373           (and limit (= (length result-files) limit)
1374                (setq articles nil)))
1375
1376         ;; If this is the last article to be decoded, and
1377         ;; we still haven't reached the end, then we delete
1378         ;; the partially decoded file.
1379         (and (or (eq state 'last) (eq state 'first-and-last))
1380              (not (memq 'end process-state))
1381              result-file
1382              (file-exists-p result-file)
1383              (not gnus-uu-be-dangerous)
1384              (or (eq gnus-uu-be-dangerous t)
1385                  (gnus-y-or-n-p
1386                   (format "Delete incomplete file %s? " result-file)))
1387              (delete-file result-file))
1388
1389         ;; If this was a file of the wrong sort, then
1390         (when (and (or (memq 'wrong-type process-state)
1391                        (memq 'error process-state))
1392                    gnus-uu-unmark-articles-not-decoded)
1393           (gnus-summary-tick-article article t))
1394
1395         ;; Set the new series state.
1396         (if (and (not has-been-begin)
1397                  (not sloppy)
1398                  (or (memq 'end process-state)
1399                      (memq 'middle process-state)))
1400             (progn
1401               (setq process-state (list 'error))
1402               (gnus-message 2 "No begin part at the beginning")
1403               (sleep-for 2))
1404           (setq state 'middle))))
1405
1406       ;; When there are no result-files, then something must be wrong.
1407     (if result-files
1408         (message "")
1409       (cond
1410        ((not has-been-begin)
1411         (gnus-message 2 "Wrong type file"))
1412        ((memq 'error process-state)
1413         (gnus-message 2 "An error occurred during decoding"))
1414        ((not (or (memq 'ok process-state)
1415                  (memq 'end process-state)))
1416         (gnus-message 2 "End of articles reached before end of file")))
1417       ;; Make unsuccessfully decoded articles unread.
1418       (when gnus-uu-unmark-articles-not-decoded
1419         (while article-series
1420           (gnus-summary-tick-article (pop article-series) t))))
1421
1422     ;; The original article buffer is hosed, shoot it down.
1423     (gnus-kill-buffer gnus-original-article-buffer)
1424     (setq gnus-current-article nil)
1425     result-files))
1426
1427 (defun gnus-uu-grab-view (file)
1428   "View FILE using the gnus-uu methods."
1429   (let ((action (gnus-uu-get-action file)))
1430     (gnus-execute-command
1431      (if (string-match "%" action)
1432          (format action file)
1433        (concat action " " file))
1434      (eq gnus-view-pseudos 'not-confirm))))
1435
1436 (defun gnus-uu-grab-move (file)
1437   "Move FILE to somewhere."
1438   (when gnus-uu-default-dir
1439     (let ((to-file (concat (file-name-as-directory gnus-uu-default-dir)
1440                            (file-name-nondirectory file))))
1441       (rename-file file to-file)
1442       (unless (file-exists-p file)
1443         (make-symbolic-link to-file file)))))
1444
1445 (defun gnus-uu-part-number (article)
1446   (let* ((header (gnus-summary-article-header article))
1447          (subject (and header (mail-header-subject header)))
1448          (part nil))
1449     (if subject
1450         (while (string-match "[0-9]+/[0-9]+\\|[0-9]+[ \t]+of[ \t]+[0-9]+"
1451                              subject)
1452           (setq part (match-string 0 subject))
1453           (setq subject (substring subject (match-end 0)))))
1454     (or part
1455         (while (string-match "[0-9]+[^0-9]+[0-9]+" subject)
1456           (setq part (match-string 0 subject))
1457           (setq subject (substring subject (match-end 0)))))
1458     (or part "")))
1459
1460 (defun gnus-uu-uudecode-sentinel (process event)
1461   (delete-process (get-process process)))
1462
1463 (defun gnus-uu-uustrip-article (process-buffer in-state)
1464   ;; Uudecodes a file asynchronously.
1465   (with-current-buffer process-buffer
1466     (let ((state (list 'wrong-type))
1467           process-connection-type case-fold-search buffer-read-only
1468           files start-char)
1469       (goto-char (point-min))
1470
1471       ;; Deal with ^M at the end of the lines.
1472       (when gnus-uu-kill-carriage-return
1473         (save-excursion
1474           (while (search-forward "\r" nil t)
1475             (delete-char -1))))
1476
1477       (while (or (re-search-forward gnus-uu-begin-string nil t)
1478                  (re-search-forward gnus-uu-body-line nil t))
1479         (setq state (list 'ok))
1480         ;; Ok, we are at the first uucoded line.
1481         (beginning-of-line)
1482         (setq start-char (point))
1483
1484         (if (not (looking-at gnus-uu-begin-string))
1485             (setq state (list 'middle))
1486           ;; This is the beginning of a uuencoded article.
1487           ;; We replace certain characters that could make things messy.
1488           (setq gnus-uu-file-name
1489                 (gnus-map-function
1490                  mm-file-name-rewrite-functions
1491                  (file-name-nondirectory (match-string 1))))
1492           (replace-match (concat "begin 644 " gnus-uu-file-name) t t)
1493
1494           ;; Remove any non gnus-uu-body-line right after start.
1495           (forward-line 1)
1496           (while (and (not (eobp))
1497                       (not (looking-at gnus-uu-body-line)))
1498             (gnus-delete-line))
1499
1500           ;; If a process is running, we kill it.
1501           (when (and gnus-uu-uudecode-process
1502                      (memq (process-status gnus-uu-uudecode-process)
1503                            '(run stop)))
1504             (delete-process gnus-uu-uudecode-process)
1505             (gnus-uu-unmark-list-of-grabbed t))
1506
1507           ;; Start a new uudecoding process.
1508           (let ((cdir default-directory))
1509             (unwind-protect
1510                 (progn
1511                   (cd gnus-uu-work-dir)
1512                   (setq gnus-uu-uudecode-process
1513                         (start-process
1514                          "*uudecode*"
1515                          (gnus-get-buffer-create gnus-uu-output-buffer-name)
1516                          shell-file-name shell-command-switch
1517                          (format "cd %s %s uudecode" gnus-uu-work-dir
1518                                  gnus-shell-command-separator))))
1519               (cd cdir)))
1520           (set-process-sentinel
1521            gnus-uu-uudecode-process 'gnus-uu-uudecode-sentinel)
1522           (setq state (list 'begin))
1523           (push (concat gnus-uu-work-dir gnus-uu-file-name) files))
1524
1525         ;; We look for the end of the thing to be decoded.
1526         (if (re-search-forward gnus-uu-end-string nil t)
1527             (push 'end state)
1528           (goto-char (point-max))
1529           (re-search-backward gnus-uu-body-line nil t))
1530
1531         (forward-line 1)
1532
1533         (when gnus-uu-uudecode-process
1534           (when (memq (process-status gnus-uu-uudecode-process) '(run stop))
1535             ;; Try to correct mishandled uucode.
1536             (when gnus-uu-correct-stripped-uucode
1537               (gnus-uu-check-correct-stripped-uucode start-char (point)))
1538             (gnus-run-hooks 'gnus-uu-pre-uudecode-hook)
1539
1540             ;; Send the text to the process.
1541             (condition-case nil
1542                 (process-send-region
1543                  gnus-uu-uudecode-process start-char (point))
1544               (error
1545                (progn
1546                  (delete-process gnus-uu-uudecode-process)
1547                  (gnus-message 2 "gnus-uu: Couldn't uudecode")
1548                  (setq state (list 'wrong-type)))))
1549
1550             (if (memq 'end state)
1551                 (progn
1552                   ;; Send an EOF, just in case.
1553                   (ignore-errors
1554                     (process-send-eof gnus-uu-uudecode-process))
1555                   (while (memq (process-status gnus-uu-uudecode-process)
1556                                '(open run))
1557                     (accept-process-output gnus-uu-uudecode-process 1)))
1558               (when (or (not gnus-uu-uudecode-process)
1559                         (not (memq (process-status gnus-uu-uudecode-process)
1560                                    '(run stop))))
1561                 (setq state (list 'wrong-type)))))))
1562
1563       (if (memq 'begin state)
1564           (cons (if (= (length files) 1) (car files) files) state)
1565         state))))
1566
1567 (defvar gnus-uu-unshar-warning
1568   "*** WARNING ***
1569
1570 Shell archives are an archaic method of bundling files for distribution
1571 across computer networks.  During the unpacking process, arbitrary commands
1572 are executed on your system, and all kinds of nasty things can happen.
1573 Please examine the archive very carefully before you instruct Emacs to
1574 unpack it.  You can browse the archive buffer using \\[scroll-other-window].
1575
1576 If you are unsure what to do, please answer \"no\"."
1577   "Text of warning message displayed by `gnus-uu-unshar-article'.
1578 Make sure that this text consists only of few text lines.  Otherwise,
1579 Gnus might fail to display all of it.")
1580
1581
1582 ;; This function is used by `gnus-uu-grab-articles' to treat
1583 ;; a shared article.
1584 (defun gnus-uu-unshar-article (process-buffer in-state)
1585   (let ((state (list 'ok))
1586         start-char)
1587     (with-current-buffer process-buffer
1588       (goto-char (point-min))
1589       (if (not (re-search-forward gnus-uu-shar-begin-string nil t))
1590           (setq state (list 'wrong-type))
1591         (save-window-excursion
1592           (save-excursion
1593             (switch-to-buffer (current-buffer))
1594             (delete-other-windows)
1595             (let ((buffer (get-buffer-create (generate-new-buffer-name
1596                                               "*Warning*"))))
1597               (unless
1598                   (unwind-protect
1599                       (with-current-buffer buffer
1600                         (insert (substitute-command-keys
1601                                  gnus-uu-unshar-warning))
1602                         (goto-char (point-min))
1603                         (display-buffer buffer)
1604                         (yes-or-no-p "This is a shell archive, unshar it? "))
1605                     (kill-buffer buffer))
1606                 (setq state (list 'error))))))
1607         (unless (memq 'error state)
1608           (beginning-of-line)
1609           (setq start-char (point))
1610           (call-process-region
1611            start-char (point-max) shell-file-name nil
1612            (gnus-get-buffer-create gnus-uu-output-buffer-name) nil
1613            shell-command-switch
1614            (concat "cd " gnus-uu-work-dir " "
1615                    gnus-shell-command-separator  " sh")))))
1616     state))
1617
1618 ;; Returns the name of what the shar file is going to unpack.
1619 (defun gnus-uu-find-name-in-shar ()
1620   (let ((oldpoint (point))
1621         res)
1622     (goto-char (point-min))
1623     (when (re-search-forward gnus-uu-shar-name-marker nil t)
1624       (setq res (buffer-substring (match-beginning 1) (match-end 1))))
1625     (goto-char oldpoint)
1626     res))
1627
1628 ;; `gnus-uu-choose-action' chooses what action to perform given the name
1629 ;; and `gnus-uu-file-action-list'.  Returns either nil if no action is
1630 ;; found, or the name of the command to run if such a rule is found.
1631 (defun gnus-uu-choose-action (file-name file-action-list &optional no-ignore)
1632   (let ((action-list (copy-sequence file-action-list))
1633         (case-fold-search t)
1634         rule action)
1635     (and
1636      (unless no-ignore
1637        (and (not
1638              (and gnus-uu-ignore-files-by-name
1639                   (string-match gnus-uu-ignore-files-by-name file-name)))
1640             (not
1641              (and gnus-uu-ignore-files-by-type
1642                   (string-match gnus-uu-ignore-files-by-type
1643                                 (or (gnus-uu-choose-action
1644                                      file-name gnus-uu-ext-to-mime-list t)
1645                                     ""))))))
1646      (while (not (or (eq action-list ()) action))
1647        (setq rule (car action-list))
1648        (setq action-list (cdr action-list))
1649        (when (string-match (car rule) file-name)
1650          (setq action (cadr rule)))))
1651     action))
1652
1653 (defun gnus-uu-treat-archive (file-path)
1654   ;; Unpacks an archive.  Returns t if unpacking is successful.
1655   (let ((did-unpack t)
1656         action command dir)
1657     (setq action (gnus-uu-choose-action
1658                   file-path (append gnus-uu-user-archive-rules
1659                                     (if gnus-uu-ignore-default-archive-rules
1660                                         nil
1661                                       gnus-uu-default-archive-rules))))
1662
1663     (when (not action)
1664       (error "No unpackers for the file %s" file-path))
1665
1666     (string-match "/[^/]*$" file-path)
1667     (setq dir (substring file-path 0 (match-beginning 0)))
1668
1669     (when (member action gnus-uu-destructive-archivers)
1670       (copy-file file-path (concat file-path "~") t))
1671
1672     (setq command (format "cd %s ; %s" dir (gnus-uu-command action file-path)))
1673
1674     (with-current-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name)
1675       (erase-buffer))
1676
1677     (gnus-message 5 "Unpacking: %s..." (gnus-uu-command action file-path))
1678
1679     (if (eq 0 (call-process shell-file-name nil
1680                            (gnus-get-buffer-create gnus-uu-output-buffer-name)
1681                            nil shell-command-switch command))
1682         (message "")
1683       (gnus-message 2 "Error during unpacking of archive")
1684       (setq did-unpack nil))
1685
1686     (when (member action gnus-uu-destructive-archivers)
1687       (rename-file (concat file-path "~") file-path t))
1688
1689     did-unpack))
1690
1691 (defun gnus-uu-dir-files (dir)
1692   (let ((dirs (directory-files dir t "[^/][^\\.][^\\.]?$"))
1693         files file)
1694     (while dirs
1695       (if (file-directory-p (setq file (car dirs)))
1696           (setq files (append files (gnus-uu-dir-files file)))
1697         (push file files))
1698       (setq dirs (cdr dirs)))
1699     files))
1700
1701 (defun gnus-uu-unpack-files (files &optional ignore)
1702   ;; Go through FILES and look for files to unpack.
1703   (let* ((totfiles (gnus-uu-ls-r gnus-uu-work-dir))
1704          (ofiles files)
1705          file did-unpack)
1706     (while files
1707       (setq file (cdr (assq 'name (car files))))
1708       (when (and (not (member file ignore))
1709                  (equal (gnus-uu-get-action (file-name-nondirectory file))
1710                         "gnus-uu-archive"))
1711         (push file did-unpack)
1712         (unless (gnus-uu-treat-archive file)
1713           (gnus-message 2 "Error during unpacking of %s" file))
1714         (let* ((newfiles (gnus-uu-ls-r gnus-uu-work-dir))
1715                (nfiles newfiles))
1716           (while nfiles
1717             (unless (member (car nfiles) totfiles)
1718               (push (list (cons 'name (car nfiles))
1719                           (cons 'original file))
1720                     ofiles))
1721             (setq nfiles (cdr nfiles)))
1722           (setq totfiles newfiles)))
1723       (setq files (cdr files)))
1724     (if did-unpack
1725         (gnus-uu-unpack-files ofiles (append did-unpack ignore))
1726       ofiles)))
1727
1728 (defun gnus-uu-ls-r (dir)
1729   (let* ((files (gnus-uu-directory-files dir t))
1730          (ofiles files))
1731     (while files
1732       (when (file-directory-p (car files))
1733         (setq ofiles (delete (car files) ofiles))
1734         (setq ofiles (append ofiles (gnus-uu-ls-r (car files)))))
1735       (setq files (cdr files)))
1736     ofiles))
1737
1738 ;; Various stuff
1739
1740 (defun gnus-uu-directory-files (dir &optional full)
1741   (let (files out file)
1742     (setq files (directory-files dir full))
1743     (while files
1744       (setq file (car files))
1745       (setq files (cdr files))
1746       (unless (member (file-name-nondirectory file) '("." ".."))
1747         (push file out)))
1748     (setq out (nreverse out))
1749     out))
1750
1751 (defun gnus-uu-check-correct-stripped-uucode (start end)
1752   (save-excursion
1753     (let (found beg length)
1754       (unless gnus-uu-correct-stripped-uucode
1755         (goto-char start)
1756
1757         (if (re-search-forward " \\|`" end t)
1758             (progn
1759               (goto-char start)
1760               (while (not (eobp))
1761                 (progn
1762                   (when (looking-at "\n")
1763                     (replace-match ""))
1764                   (forward-line 1))))
1765
1766           (while (not (eobp))
1767             (unless (looking-at (concat gnus-uu-begin-string "\\|"
1768                                         gnus-uu-end-string))
1769               (when (not found)
1770                 (setq length (- (point-at-eol) (point-at-bol))))
1771               (setq found t)
1772               (beginning-of-line)
1773               (setq beg (point))
1774               (end-of-line)
1775               (unless (= length (- (point) beg))
1776                 (insert (make-string (- length (- (point) beg)) ? ))))
1777             (forward-line 1)))))))
1778
1779 (defvar gnus-uu-tmp-alist nil)
1780
1781 (defun gnus-uu-initialize (&optional scan)
1782   (let (entry)
1783     (if (and (not scan)
1784              (when (setq entry (assoc gnus-newsgroup-name gnus-uu-tmp-alist))
1785                (if (file-exists-p (cdr entry))
1786                    (setq gnus-uu-work-dir (cdr entry))
1787                  (setq gnus-uu-tmp-alist (delq entry gnus-uu-tmp-alist))
1788                  nil)))
1789         t
1790       (setq gnus-uu-tmp-dir (file-name-as-directory
1791                              (expand-file-name gnus-uu-tmp-dir)))
1792       (if (not (file-directory-p gnus-uu-tmp-dir))
1793           (error "Temp directory %s doesn't exist" gnus-uu-tmp-dir)
1794         (when (not (file-writable-p gnus-uu-tmp-dir))
1795           (error "Temp directory %s can't be written to"
1796                  gnus-uu-tmp-dir)))
1797
1798       (setq gnus-uu-work-dir
1799             (mm-make-temp-file (concat gnus-uu-tmp-dir "gnus") 'dir))
1800       (gnus-set-file-modes gnus-uu-work-dir 448)
1801       (setq gnus-uu-work-dir (file-name-as-directory gnus-uu-work-dir))
1802       (push (cons gnus-newsgroup-name gnus-uu-work-dir)
1803             gnus-uu-tmp-alist))))
1804
1805
1806 ;; Kills the temporary uu buffers, kills any processes, etc.
1807 (defun gnus-uu-clean-up ()
1808   (let (buf)
1809     (and gnus-uu-uudecode-process
1810          (memq (process-status (or gnus-uu-uudecode-process "nevair"))
1811                '(stop run))
1812          (delete-process gnus-uu-uudecode-process))
1813     (when (setq buf (get-buffer gnus-uu-output-buffer-name))
1814       (kill-buffer buf))))
1815
1816 ;; Inputs an action and a filename and returns a full command, making sure
1817 ;; that the filename will be treated as a single argument when the shell
1818 ;; executes the command.
1819 (defun gnus-uu-command (action file)
1820   (let ((quoted-file (shell-quote-argument file)))
1821     (if (string-match "%s" action)
1822         (format action quoted-file)
1823       (concat action " " quoted-file))))
1824
1825 (defun gnus-uu-delete-work-dir (&optional dir)
1826   "Delete recursively all files and directories under `gnus-uu-work-dir'."
1827   (if dir
1828       (gnus-message 7 "Deleting directory %s..." dir)
1829     (setq dir gnus-uu-work-dir))
1830   (when (and dir
1831              (file-exists-p dir))
1832     (let ((files (directory-files dir t nil t))
1833           file)
1834       (while (setq file (pop files))
1835         (unless (member (file-name-nondirectory file) '("." ".."))
1836           (if (file-directory-p file)
1837               (gnus-uu-delete-work-dir file)
1838             (gnus-message 9 "Deleting file %s..." file)
1839             (condition-case err
1840                 (delete-file file)
1841               (error (gnus-message 3 "Deleting file %s failed... %s" file err))))))
1842       (condition-case err
1843           (delete-directory dir)
1844         (error (gnus-message 3 "Deleting directory %s failed... %s" file err))))
1845     (gnus-message 7 "")))
1846
1847 ;; Initializing
1848
1849 (add-hook 'gnus-exit-group-hook 'gnus-uu-clean-up)
1850 (add-hook 'gnus-exit-group-hook 'gnus-uu-delete-work-dir)
1851
1852 \f
1853
1854 ;;;
1855 ;;; uuencoded posting
1856 ;;;
1857
1858 ;; Any function that is to be used as and encoding method will take two
1859 ;; parameters: PATH-NAME and FILE-NAME.  (E.g. "/home/gaga/spiral.jpg"
1860 ;; and "spiral.jpg", respectively.) The function should return nil if
1861 ;; the encoding wasn't successful.
1862 (defcustom gnus-uu-post-encode-method 'gnus-uu-post-encode-uuencode
1863   "Function used for encoding binary files.
1864 There are three functions supplied with gnus-uu for encoding files:
1865 `gnus-uu-post-encode-uuencode', which does straight uuencoding;
1866 `gnus-uu-post-encode-mime', which encodes with base64 and adds MIME
1867 headers; and `gnus-uu-post-encode-mime-uuencode', which encodes with
1868 uuencode and adds MIME headers."
1869   :group 'gnus-extract-post
1870   :type '(radio (function-item gnus-uu-post-encode-uuencode)
1871                 (function-item gnus-uu-post-encode-mime)
1872                 (function-item gnus-uu-post-encode-mime-uuencode)
1873                 (function :tag "Other")))
1874
1875 (defcustom gnus-uu-post-include-before-composing nil
1876   "Non-nil means that gnus-uu will ask for a file to encode before you compose the article.
1877 If this variable is t, you can either include an encoded file with
1878 \\[gnus-uu-post-insert-binary-in-article] or have one included for you when you post the article."
1879   :group 'gnus-extract-post
1880   :type 'boolean)
1881
1882 (defcustom gnus-uu-post-length 990
1883   "Maximum length of an article.
1884 The encoded file will be split into how many articles it takes to
1885 post the entire file."
1886   :group 'gnus-extract-post
1887   :type 'integer)
1888
1889 (defcustom gnus-uu-post-threaded nil
1890   "Non-nil means that gnus-uu will post the encoded file in a thread.
1891 This may not be smart, as no other decoder I have seen are able to
1892 follow threads when collecting uuencoded articles.  (Well, I have seen
1893 one package that does that - gnus-uu, but somehow, I don't think that
1894 counts...)  The default is nil."
1895   :group 'gnus-extract-post
1896   :type 'boolean)
1897
1898 (defcustom gnus-uu-post-separate-description t
1899   "Non-nil means that the description will be posted in a separate article.
1900 The first article will typically be numbered (0/x).  If this variable
1901 is nil, the description the user enters will be included at the
1902 beginning of the first article, which will be numbered (1/x).  Default
1903 is t."
1904   :group 'gnus-extract-post
1905   :type 'boolean)
1906
1907 (defvar gnus-uu-post-binary-separator "--binary follows this line--")
1908 (defvar gnus-uu-post-message-id nil)
1909 (defvar gnus-uu-post-inserted-file-name nil)
1910 (defvar gnus-uu-winconf-post-news nil)
1911
1912 (defun gnus-uu-post-news ()
1913   "Compose an article and post an encoded file."
1914   (interactive)
1915   (setq gnus-uu-post-inserted-file-name nil)
1916   (setq gnus-uu-winconf-post-news (current-window-configuration))
1917
1918   (gnus-summary-post-news)
1919
1920   (let ((map (make-sparse-keymap)))
1921     (set-keymap-parent map (current-local-map))
1922     (use-local-map map))
1923   ;;(local-set-key "\C-c\C-c" 'gnus-summary-edit-article-done)
1924   (local-set-key "\C-c\C-c" 'gnus-uu-post-news-inews)
1925   (local-set-key "\C-c\C-s" 'gnus-uu-post-news-inews)
1926   (local-set-key "\C-c\C-i" 'gnus-uu-post-insert-binary-in-article)
1927
1928   (when gnus-uu-post-include-before-composing
1929     (save-excursion (setq gnus-uu-post-inserted-file-name
1930                           (gnus-uu-post-insert-binary)))))
1931
1932 (defun gnus-uu-post-insert-binary-in-article ()
1933   "Inserts an encoded file in the buffer.
1934 The user will be asked for a file name."
1935   (interactive)
1936   (save-excursion
1937     (setq gnus-uu-post-inserted-file-name (gnus-uu-post-insert-binary))))
1938
1939 ;; Encodes with uuencode and substitutes all spaces with backticks.
1940 (defun gnus-uu-post-encode-uuencode (path file-name)
1941   (when (gnus-uu-post-encode-file "uuencode" path file-name)
1942     (goto-char (point-min))
1943     (forward-line 1)
1944     (while (search-forward " " nil t)
1945       (replace-match "`"))
1946     t))
1947
1948 ;; Encodes with uuencode and adds MIME headers.
1949 (defun gnus-uu-post-encode-mime-uuencode (path file-name)
1950   (when (gnus-uu-post-encode-uuencode path file-name)
1951     (gnus-uu-post-make-mime file-name "x-uue")
1952     t))
1953
1954 ;; Encodes with base64 and adds MIME headers
1955 (defun gnus-uu-post-encode-mime (path file-name)
1956   (when (eq 0 (call-process shell-file-name nil t nil shell-command-switch
1957                             (format "%s %s -o %s" "mmencode" path file-name)))
1958     (gnus-uu-post-make-mime file-name "base64")
1959     t))
1960
1961 ;; Adds MIME headers.
1962 (defun gnus-uu-post-make-mime (file-name encoding)
1963   (goto-char (point-min))
1964   (insert (format "Content-Type: %s; name=\"%s\"\n"
1965                   (gnus-uu-choose-action file-name gnus-uu-ext-to-mime-list)
1966                   file-name))
1967   (insert (format "Content-Transfer-Encoding: %s\n\n" encoding))
1968   (save-restriction
1969     (set-buffer gnus-message-buffer)
1970     (goto-char (point-min))
1971     (re-search-forward (concat "^" (regexp-quote mail-header-separator) "$"))
1972     (forward-line -1)
1973     (narrow-to-region (point-min) (point))
1974     (unless (mail-fetch-field "mime-version")
1975       (widen)
1976       (insert "MIME-Version: 1.0\n"))
1977     (widen)))
1978
1979 ;; Encodes a file PATH with COMMAND, leaving the result in the
1980 ;; current buffer.
1981 (defun gnus-uu-post-encode-file (command path file-name)
1982   (eq 0 (call-process shell-file-name nil t nil shell-command-switch
1983                       (format "%s %s %s" command path file-name))))
1984
1985 (defun gnus-uu-post-news-inews ()
1986   "Posts the composed news article and encoded file.
1987 If no file has been included, the user will be asked for a file."
1988   (interactive)
1989
1990   (let (file-name)
1991
1992     (if gnus-uu-post-inserted-file-name
1993         (setq file-name gnus-uu-post-inserted-file-name)
1994       (setq file-name (gnus-uu-post-insert-binary)))
1995
1996     (gnus-uu-post-encoded file-name gnus-uu-post-threaded))
1997   (setq gnus-uu-post-inserted-file-name nil)
1998   (when gnus-uu-winconf-post-news
1999     (set-window-configuration gnus-uu-winconf-post-news)))
2000
2001 ;; Asks for a file to encode, encodes it and inserts the result in
2002 ;; the current buffer.  Returns the file name the user gave.
2003 (defun gnus-uu-post-insert-binary ()
2004   (let ((uuencode-buffer-name "*uuencode buffer*")
2005         file-path uubuf file-name)
2006
2007     (setq file-path (read-file-name
2008                      "What file do you want to encode? "))
2009     (when (not (file-exists-p file-path))
2010       (error "%s: No such file" file-path))
2011
2012     (goto-char (point-max))
2013     (insert (format "\n%s\n" gnus-uu-post-binary-separator))
2014
2015     ;; #### Unix-specific?
2016     (when (string-match "^~/" file-path)
2017       (setq file-path (concat "$HOME" (substring file-path 1))))
2018     ;; #### Unix-specific?
2019     (if (string-match "/[^/]*$" file-path)
2020         (setq file-name (substring file-path (1+ (match-beginning 0))))
2021       (setq file-name file-path))
2022
2023     (unwind-protect
2024         (if (with-current-buffer
2025                 (setq uubuf (gnus-get-buffer-create uuencode-buffer-name))
2026               (erase-buffer)
2027               (funcall gnus-uu-post-encode-method file-path file-name))
2028             (insert-buffer-substring uubuf)
2029           (error "Encoding unsuccessful"))
2030       (kill-buffer uubuf))
2031     file-name))
2032
2033 ;; Posts the article and all of the encoded file.
2034 (defun gnus-uu-post-encoded (file-name &optional threaded)
2035   (let ((send-buffer-name "*uuencode send buffer*")
2036         (encoded-buffer-name "*encoded buffer*")
2037         (top-string "[ cut here %s (%s %d/%d) %s gnus-uu ]")
2038         (separator (concat mail-header-separator "\n\n"))
2039         uubuf length parts header i end beg
2040         beg-line minlen post-buf whole-len beg-binary end-binary)
2041
2042     (setq post-buf (current-buffer))
2043
2044     (goto-char (point-min))
2045     (when (not (re-search-forward
2046                 (if gnus-uu-post-separate-description
2047                     (concat "^" (regexp-quote gnus-uu-post-binary-separator)
2048                             "$")
2049                   (concat "^" (regexp-quote mail-header-separator) "$"))
2050                 nil t))
2051       (error "Internal error: No binary/header separator"))
2052     (beginning-of-line)
2053     (forward-line 1)
2054     (setq beg-binary (point))
2055     (setq end-binary (point-max))
2056
2057     (with-current-buffer
2058         (setq uubuf (gnus-get-buffer-create encoded-buffer-name))
2059       (erase-buffer)
2060       (insert-buffer-substring post-buf beg-binary end-binary)
2061       (goto-char (point-min))
2062       (setq length (count-lines (point-min) (point-max)))
2063       (setq parts (/ length gnus-uu-post-length))
2064       (unless (< (% length gnus-uu-post-length) 4)
2065         (incf parts)))
2066
2067     (when gnus-uu-post-separate-description
2068       (forward-line -1))
2069     (delete-region (point) (point-max))
2070
2071     (goto-char (point-min))
2072     (re-search-forward
2073      (concat "^" (regexp-quote mail-header-separator) "$") nil t)
2074     (setq header (buffer-substring (point-min) (point-at-bol)))
2075
2076     (goto-char (point-min))
2077     (when gnus-uu-post-separate-description
2078       (when (re-search-forward "^Subject: " nil t)
2079         (end-of-line)
2080         (insert (format " (0/%d)" parts)))
2081       (save-excursion
2082         (message-send))
2083       (setq gnus-uu-post-message-id (message-fetch-field "message-id")))
2084
2085     (save-excursion
2086       (setq i 1)
2087       (setq beg 1)
2088       (while (not (> i parts))
2089         (set-buffer (gnus-get-buffer-create send-buffer-name))
2090         (erase-buffer)
2091         (insert header)
2092         (when (and threaded gnus-uu-post-message-id)
2093           (insert "References: " gnus-uu-post-message-id "\n"))
2094         (insert separator)
2095         (setq whole-len
2096               (- 62 (length (format top-string "" file-name i parts ""))))
2097         (when (> 1 (setq minlen (/ whole-len 2)))
2098           (setq minlen 1))
2099         (setq
2100          beg-line
2101          (format top-string
2102                  (make-string minlen ?-)
2103                  file-name i parts
2104                  (make-string
2105                   (if (= 0 (% whole-len 2)) (1- minlen) minlen) ?-)))
2106
2107         (goto-char (point-min))
2108         (when (re-search-forward "^Subject: " nil t)
2109           (end-of-line)
2110           (insert (format " (%d/%d)" i parts)))
2111
2112         (goto-char (point-max))
2113         (with-current-buffer uubuf
2114           (goto-char beg)
2115           (if (= i parts)
2116               (goto-char (point-max))
2117             (forward-line gnus-uu-post-length))
2118           (when (and (= (1+ i) parts) (< (count-lines (point) (point-max)) 4))
2119             (forward-line -4))
2120           (setq end (point)))
2121         (insert-buffer-substring uubuf beg end)
2122         (insert beg-line "\n")
2123         (setq beg end)
2124         (incf i)
2125         (goto-char (point-min))
2126         (re-search-forward
2127          (concat "^" (regexp-quote mail-header-separator) "$") nil t)
2128         (beginning-of-line)
2129         (forward-line 2)
2130         (when (re-search-forward
2131                (concat "^" (regexp-quote gnus-uu-post-binary-separator) "$")
2132                nil t)
2133           (replace-match "")
2134           (forward-line 1))
2135         (insert beg-line)
2136         (insert "\n")
2137         (let (message-sent-message-via)
2138           (save-excursion
2139             (message-send))
2140           (setq gnus-uu-post-message-id
2141                 (concat (message-fetch-field "references") " "
2142                         (message-fetch-field "message-id"))))))
2143
2144     (gnus-kill-buffer send-buffer-name)
2145     (gnus-kill-buffer encoded-buffer-name)
2146
2147     (when (not gnus-uu-post-separate-description)
2148       (set-buffer-modified-p nil)
2149       (bury-buffer))))
2150
2151 (provide 'gnus-uu)
2152
2153 ;;; gnus-uu.el ends here