lisp/org-protocol.el

   1 ;;; org-protocol.el --- Intercept calls from emacsclient to trigger custom actions.
   2 ;;
   3 ;; Copyright (C) 2008, 2009, 2010
   4 ;;          Free Software Foundation, Inc.
   5 ;;
   6 ;; Author: Bastien Guerry <bzg AT altern DOT org>
   7 ;; Author: Daniel M German <dmg AT uvic DOT org>
   8 ;; Author: Sebastian Rose <sebastian_rose AT gmx DOT de>
   9 ;; Author: Ross Patterson <me AT rpatterson DOT net>
  10 ;; Maintainer: Sebastian Rose <sebastian_rose AT gmx DOT de>
  11 ;; Keywords: org, emacsclient, wp
  12 ;; Version: 6.35f
  13
  14 ;; This file is part of GNU Emacs.
  15 ;;
  16 ;; GNU Emacs is free software: you can redistribute it and/or modify
  17 ;; it under the terms of the GNU General Public License as published by
  18 ;; the Free Software Foundation, either version 3 of the License, or
  19 ;; (at your option) any later version.
  20
  21 ;; GNU Emacs is distributed in the hope that it will be useful,
  22 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  23 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24 ;; GNU General Public License for more details.
  25
  26 ;; You should have received a copy of the GNU General Public License
  27 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  28
  29 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  30 ;;; Commentary:
  31 ;;
  32 ;; Intercept calls from emacsclient to trigger custom actions.
  33 ;;
  34 ;; This is done by advising `server-visit-files' to scann the list of filenames
  35 ;; for `org-protocol-the-protocol' and sub-procols defined in
  36 ;; `org-protocol-protocol-alist' and `org-protocol-protocol-alist-default'.
  37 ;;
  38 ;; Any application that supports calling external programs with an URL
  39 ;; as argument may be used with this functionality.
  40 ;;
  41 ;;
  42 ;; Usage:
  43 ;; ------
  44 ;;
  45 ;;   1.) Add this to your init file (.emacs probably):
  46 ;;
  47 ;;       (add-to-list 'load-path "/path/to/org-protocol/")
  48 ;;       (require 'org-protocol)
  49 ;;
  50 ;;   3.) Ensure emacs-server is up and running.
  51 ;;   4.) Try this from the command line (adjust the URL as needed):
  52 ;;
  53 ;;       $ emacsclient \
  54 ;;         org-protocol://store-link://http:%2F%2Flocalhost%2Findex.html/The%20title
  55 ;;
  56 ;;   5.) Optionally add custom sub-protocols and handlers:
  57 ;;
  58 ;;       (setq org-protocol-protocol-alist
  59 ;;             '(("my-protocol"
  60 ;;                :protocol "my-protocol"
  61 ;;                :function my-protocol-handler-fuction)))
  62 ;;
  63 ;;       A "sub-protocol" will be found in URLs like this:
  64 ;;
  65 ;;           org-protocol://sub-protocol://data
  66 ;;
  67 ;; If it works, you can now setup other applications for using this feature.
  68 ;;
  69 ;;
  70 ;; As of March 2009 Firefox users follow the steps documented on
  71 ;; http://kb.mozillazine.org/Register_protocol, Opera setup is described here:
  72 ;; http://www.opera.com/support/kb/view/535/
  73 ;;
  74 ;;
  75 ;; Documentation
  76 ;; -------------
  77 ;;
  78 ;; org-protocol.el comes with and installs handlers to open sources of published
  79 ;; online content, store and insert the browser's URLs and cite online content
  80 ;; by clicking on a bookmark in Firefox, Opera and probably other browsers and
  81 ;; applications:
  82 ;;
  83 ;;   * `org-protocol-open-source' uses the sub-protocol \"open-source\" and maps
  84 ;;     URLs to local filenames defined in `org-protocol-project-alist'.
  85 ;;
  86 ;;   * `org-protocol-store-link' stores an Org-link (if Org-mode is present) and
  87 ;;     pushes the browsers URL to the `kill-ring' for yanking. This handler is
  88 ;;     triggered through the sub-protocol \"store-link\".
  89 ;;
  90 ;;   * Call `org-protocol-remember' by using the sub-protocol \"remember\".  If
  91 ;;     Org-mode is loaded, emacs will pop-up a remember buffer and fill the
  92 ;;     template with the data provided. I.e. the browser's URL is inserted as an
  93 ;;     Org-link of which the page title will be the description part. If text
  94 ;;     was select in the browser, that text will be the body of the entry.
  95 ;;
  96 ;; You may use the same bookmark URL for all those standard handlers and just
  97 ;; adjust the sub-protocol used:
  98 ;;
  99 ;;     location.href='org-protocol://sub-protocol://'+
 100 ;;           encodeURIComponent(location.href)+'/'+
 101 ;;           encodeURIComponent(document.title)+'/'+
 102 ;;           encodeURIComponent(window.getSelection())
 103 ;;
 104 ;; The handler for the sub-protocol \"remember\" detects an optional template
 105 ;; char that, if present, triggers the use of a special template.
 106 ;; Example:
 107 ;;
 108 ;;     location.href='org-protocol://sub-protocol://x/'+ ...
 109 ;;
 110 ;;  use template ?x.
 111 ;;
 112 ;; Note, that using double slashes is optional from org-protocol.el's point of
 113 ;; view because emacsclient squashes the slashes to one.
 114 ;;
 115 ;;
 116 ;; provides: 'org-protocol
 117 ;;
 118 ;;; Code:
 119
 120 (require 'org)
 121 (eval-when-compile
 122   (require 'cl))
 123
 124 (declare-function org-publish-initialize-files-alist "org-publish"
 125                   (&optional refresh))
 126 (declare-function org-publish-get-project-from-filename "org-publish"
 127                   (filename &optional up))
 128 (declare-function server-edit "server" (&optional arg))
 129
 130
 131 (defgroup org-protocol nil
 132   "Intercept calls from emacsclient to trigger custom actions.
 133
 134 This is done by advising `server-visit-files' to scann the list of filenames
 135 for `org-protocol-the-protocol' and sub-procols defined in
 136 `org-protocol-protocol-alist' and `org-protocol-protocol-alist-default'."
 137   :version "22.1"
 138   :group 'convenience
 139   :group 'org)
 140
 141
 142 ;;; Variables:
 143
 144 (defconst org-protocol-protocol-alist-default
 145   '(("org-remember"    :protocol "remember"    :function org-protocol-remember :kill-client t)
 146     ("org-store-link"  :protocol "store-link"  :function org-protocol-store-link)
 147     ("org-open-source" :protocol "open-source" :function org-protocol-open-source))
 148   "Default protocols to use.
 149 See `org-protocol-protocol-alist' for a description of this variable.")
 150
 151
 152 (defconst org-protocol-the-protocol "org-protocol"
 153   "This is the protocol to detect if org-protocol.el is loaded.
 154 `org-protocol-protocol-alist-default' and `org-protocol-protocol-alist' hold the
 155 sub-protocols that trigger the required action. You will have to define just one
 156 protocol handler OS-wide (MS-Windows) or per application (Linux). That protocol
 157 handler should call emacsclient.")
 158
 159
 160 ;;; User variables:
 161
 162 (defcustom org-protocol-reverse-list-of-files t
 163   "* The filenames passed on the commandline are passed to the emacs-server in
 164 reversed order. Set to `t' (default) to re-reverse the list, i.e. use the
 165 sequence on the command line. If nil, the sequence of the filenames is
 166 unchanged."
 167   :group 'org-protocol
 168   :type 'boolean)
 169
 170
 171 (defcustom org-protocol-project-alist nil
 172   "* Map URLs to local filenames for `org-protocol-open-source' (open-source).
 173
 174 Each element of this list must be of the form:
 175
 176   (module-name :property value property: value ...)
 177
 178 where module-name is an arbitrary name. All the values are strings.
 179
 180 Possible properties are:
 181
 182   :online-suffix     - the suffix to strip from the published URLs
 183   :working-suffix    - the replacement for online-suffix
 184   :base-url          - the base URL, e.g. http://www.example.com/project/
 185                        Last slash required.
 186   :working-directory - the local working directory. This is, what base-url will
 187                        be replaced with.
 188   :redirects         - A list of cons cells, each of which maps a regular
 189                        expression to match to a path relative to :working-directory.
 190
 191 Example:
 192
 193    (setq org-protocol-project-alist
 194        '((\"http://orgmode.org/worg/\"
 195           :online-suffix \".php\"
 196           :working-suffix \".org\"
 197           :base-url \"http://orgmode.org/worg/\"
 198           :working-directory \"/home/user/org/Worg/\")
 199          (\"http://localhost/org-notes/\"
 200           :online-suffix \".html\"
 201           :working-suffix \".org\"
 202           :base-url \"http://localhost/org/\"
 203           :working-directory \"/home/user/org/\"
 204           :rewrites ((\"org/?$\" . \"index.php\")))))
 205
 206    The last line tells `org-protocol-open-source' to open
 207    /home/user/org/index.php, if the URL cannot be mapped to an existing
 208    file, and ends with either \"org\" or \"org/\".
 209
 210 Consider using the interactive functions `org-protocol-create' and
 211 `org-protocol-create-for-org' to help you filling this variable with valid contents."
 212   :group 'org-protocol
 213   :type 'alist)
 214
 215
 216 (defcustom org-protocol-protocol-alist nil
 217   "* Register custom handlers for org-protocol.
 218
 219 Each element of this list must be of the form:
 220
 221   (module-name :protocol protocol :function func :kill-client nil)
 222
 223 protocol - protocol to detect in a filename without trailing colon and slashes.
 224            See rfc1738 section 2.1 for more on this.
 225            If you define a protocol \"my-protocol\", `org-protocol-check-filename-for-protocol'
 226            will search filenames for \"org-protocol:/my-protocol:/\"
 227            and trigger your action for every match. `org-protocol' is defined in
 228            `org-protocol-the-protocol'. Double and tripple slashes are compressed
 229            to one by emacsclient.
 230
 231 function - function that handles requests with protocol and takes exactly one
 232            argument: the filename with all protocols stripped. If the function
 233            returns nil, emacsclient and -server do nothing. Any non-nil return
 234            value is considered a valid filename and thus passed to the server.
 235
 236            `org-protocol.el provides some support for handling those filenames,
 237            if you stay with the conventions used for the standard handlers in
 238            `org-protocol-protocol-alist-default'. See `org-protocol-split-data'.
 239
 240 kill-client - If t, kill the client immediately, once the sub-protocol is
 241            detected. This is necessary for actions that can be interrupted by
 242            `C-g' to avoid dangeling emacsclients. Note, that all other command
 243            line arguments but the this one will be discarded, greedy handlers
 244            still receive the whole list of arguments though.
 245
 246 Here is an example:
 247
 248   (setq org-protocol-protocol-alist
 249       '((\"my-protocol\"
 250          :protocol \"my-protocol\"
 251          :function my-protocol-handler-fuction)
 252         (\"your-protocol\"
 253          :protocol \"your-protocol\"
 254          :function your-protocol-handler-fuction)))"
 255   :group 'org-protocol
 256   :type '(alist))
 257
 258 (defcustom org-protocol-default-template-key "w"
 259   "The default org-remember-templates key to use."
 260   :group 'org-protocol
 261   :type 'string)
 262
 263
 264 ;;; Helper functions:
 265
 266 (defun org-protocol-sanitize-uri (uri)
 267   "emacsclient compresses double and tripple slashes.
 268 Slashes are sanitized to double slashes here."
 269   (when (string-match "^\\([a-z]+\\):/" uri)
 270     (let* ((splitparts (split-string uri "/+")))
 271       (setq uri (concat (car splitparts) "//" (mapconcat 'identity (cdr splitparts) "/")))))
 272   uri)
 273
 274
 275 (defun org-protocol-split-data(data &optional unhexify separator)
 276   "Split, what a org-protocol handler function gets as only argument.
 277 data is that one argument. Data is splitted at each occurrence of separator
 278  (regexp). If no separator is specified or separator is nil, assume \"/+\".
 279 The results of that splitting are return as a list. If unhexify is non-nil,
 280 hex-decode each split part. If unhexify is a function, use that function to
 281 decode each split part."
 282   (let* ((sep (or separator "/+"))
 283          (split-parts (split-string data sep)))
 284     (if unhexify
 285         (if (fboundp unhexify)
 286             (mapcar unhexify split-parts)
 287           (mapcar 'org-protocol-unhex-string split-parts))
 288       split-parts)))
 289
 290 ;; This inline function is needed in org-protocol-unhex-compound to do
 291 ;; the right thing to decode UTF-8 char integer values.
 292 (eval-when-compile
 293   (if (>= emacs-major-version 23)
 294       (defsubst org-protocol-char-to-string(c)
 295         "Defsubst to decode UTF-8 character values in emacs 23 and beyond."
 296         (char-to-string c))
 297     (defsubst org-protocol-char-to-string (c)
 298       "Defsubst to decode UTF-8 character values in emacs 22."
 299       (string (decode-char 'ucs c)))))
 300
 301 (defun org-protocol-unhex-string(str)
 302   "Unhex hexified unicode strings as returned from the JavaScript function
 303 encodeURIComponent. E.g. `%C3%B6' is the german Umlaut `ü'."
 304   (setq str (or str ""))
 305   (let ((tmp "")
 306         (case-fold-search t))
 307     (while (string-match "\\(%[0-9a-f][0-9a-f]\\)+" str)
 308       (let* ((start (match-beginning 0))
 309              (end (match-end 0))
 310              (hex (match-string 0 str))
 311              (replacement (org-protocol-unhex-compound hex)))
 312         (setq tmp (concat tmp (substring str 0 start) replacement))
 313         (setq str (substring str end))))
 314     (setq tmp (concat tmp str))
 315     tmp))
 316
 317
 318 (defun org-protocol-unhex-compound (hex)
 319   "Unhexify unicode hex-chars. E.g. `%C3%B6' is the german Umlaut `ü'."
 320   (let* ((bytes (remove "" (split-string hex "%")))
 321          (ret "")
 322          (eat 0)
 323          (sum 0))
 324     (while bytes
 325       (let* ((b (pop bytes))
 326              (a (elt b 0))
 327              (b (elt b 1))
 328              (c1 (if (> a ?9) (+ 10 (- a ?A)) (- a ?0)))
 329              (c2 (if (> b ?9) (+ 10 (- b ?A)) (- b ?0)))
 330              (val (+ (lsh c1 4) c2))
 331              (shift
 332               (if (= 0 eat) ;; new byte
 333                   (if (>= val 252) 6
 334                     (if (>= val 248) 5
 335                       (if (>= val 240) 4
 336                         (if (>= val 224) 3
 337                           (if (>= val 192) 2 0)))))
 338                 6))
 339              (xor
 340               (if (= 0 eat) ;; new byte
 341                   (if (>= val 252) 252
 342                     (if (>= val 248) 248
 343                       (if (>= val 240) 240
 344                         (if (>= val 224) 224
 345                           (if (>= val 192) 192 0)))))
 346                 128)))
 347         (if (>= val 192) (setq eat shift))
 348         (setq val (logxor val xor))
 349         (setq sum (+ (lsh sum shift) val))
 350         (if (> eat 0) (setq eat (- eat 1)))
 351         (when (= 0 eat)
 352           (setq ret (concat ret (org-protocol-char-to-string sum)))
 353           (setq sum 0))
 354         )) ;; end (while bytes
 355     ret ))
 356
 357 (defun org-protocol-flatten-greedy (param-list &optional strip-path replacement)
 358   "Greedy handlers might recieve a list like this from emacsclient:
 359  '( (\"/dir/org-protocol:/greedy:/~/path1\" (23 . 12)) (\"/dir/param\")
 360 where \"/dir/\" is the absolute path to emacsclients working directory. This
 361 function transforms it into a flat list utilizing `org-protocol-flatten' and
 362 transforms the elements of that list as follows:
 363
 364 If strip-path is non-nil, remove the \"/dir/\" prefix from all members of
 365 param-list.
 366
 367 If replacement is string, replace the \"/dir/\" prefix with it.
 368
 369 The first parameter, the one that contains the protocols, is always changed.
 370 Everything up to the end of the protocols is stripped.
 371
 372 Note, that this function will always behave as if
 373 `org-protocol-reverse-list-of-files' was set to t and the returned list will
 374 reflect that. I.e. emacsclients first parameter will be the first one in the
 375 returned list."
 376 (let* ((l (org-protocol-flatten (if org-protocol-reverse-list-of-files
 377                                     param-list
 378                                   (reverse param-list))))
 379       (trigger (car l))
 380       (len 0)
 381       dir
 382       ret)
 383   (when (string-match "^\\(.*\\)\\(org-protocol:/+[a-zA-z0-9][-_a-zA-z0-9]*:/+\\)\\(.*\\)" trigger)
 384     (setq dir (match-string 1 trigger))
 385     (setq len (length dir))
 386     (setcar l (concat dir (match-string 3 trigger))))
 387   (if strip-path
 388       (progn
 389        (dolist (e l ret)
 390          (setq ret
 391                (append ret
 392                        (list
 393                         (if (stringp e)
 394                             (if (stringp replacement)
 395                                 (setq e (concat replacement (substring e len)))
 396                               (setq e (substring e len)))
 397                           e)))))
 398        ret)
 399     l)))
 400
 401
 402 (defun org-protocol-flatten (l)
 403   "Greedy handlers might recieve a list like this from emacsclient:
 404  '( (\"/dir/org-protocol:/greedy:/~/path1\" (23 . 12)) (\"/dir/param\")
 405 where \"/dir/\" is the absolute path to emacsclients working directory. This
 406 function transforms it into a flat list."
 407   (if (null l) ()
 408     (if (listp l)
 409        (append (org-protocol-flatten (car l)) (org-protocol-flatten (cdr l)))
 410       (list l))))
 411
 412 ;;; Standard protocol handlers:
 413
 414 (defun org-protocol-store-link (fname)
 415   "Process an org-protocol://store-link:// style url
 416 and store a browser URL as an org link. Also pushes the links URL to the
 417 `kill-ring'.
 418
 419 The location for a browser's bookmark has to look like this:
 420
 421   javascript:location.href='org-protocol://store-link://'+ \\
 422         encodeURIComponent(location.href)
 423         encodeURIComponent(document.title)+'/'+ \\
 424
 425 Don't use `escape()'! Use `encodeURIComponent()' instead. The title of the page
 426 could contain slashes and the location definitely will.
 427
 428 The sub-protocol used to reach this function is set in
 429 `org-protocol-protocol-alist'."
 430   (let* ((splitparts (org-protocol-split-data fname t))
 431          (uri (org-protocol-sanitize-uri (car splitparts)))
 432          (title (cadr splitparts))
 433          orglink)
 434     (if (boundp 'org-stored-links)
 435       (setq org-stored-links (cons (list uri title) org-stored-links)))
 436     (kill-new uri)
 437     (message "`%s' to insert new org-link, `%s' to insert `%s'"
 438              (substitute-command-keys"\\[org-insert-link]")
 439              (substitute-command-keys"\\[yank]")
 440              uri))
 441   nil)
 442
 443 (defun org-protocol-remember  (info)
 444   "Process an org-protocol://remember:// style url.
 445
 446 The sub-protocol used to reach this function is set in
 447 `org-protocol-protocol-alist'.
 448
 449 This function detects an URL, title and optional text, separated by '/'
 450 The location for a browser's bookmark has to look like this:
 451
 452   javascript:location.href='org-protocol://remember://'+ \\
 453         encodeURIComponent(location.href)+'/' \\
 454         encodeURIComponent(document.title)+'/'+ \\
 455         encodeURIComponent(window.getSelection())
 456
 457 By default, it uses the character `org-protocol-default-template-key',
 458 which should be associated with a template in `org-remember-templates'.
 459 But you may prepend the encoded URL with a character and a slash like so:
 460
 461   javascript:location.href='org-protocol://org-store-link://b/'+ ...
 462
 463 Now template ?b will be used."
 464
 465   (if (and (boundp 'org-stored-links)
 466            (fboundp 'org-remember))
 467       (let* ((parts (org-protocol-split-data info t))
 468              (template (or (and (= 1 (length (car parts))) (pop parts))
 469                            org-protocol-default-template-key))
 470              (url (org-protocol-sanitize-uri (car parts)))
 471              (type (if (string-match "^\\([a-z]+\\):" url)
 472                        (match-string 1 url)))
 473              (title (or (cadr parts) ""))
 474              (region (or (caddr parts) ""))
 475              (orglink (org-make-link-string
 476                        url (if (string-match "[^[:space:]]" title) title url)))
 477              remember-annotation-functions)
 478         (setq org-stored-links
 479               (cons (list url title) org-stored-links))
 480         (kill-new orglink)
 481         (org-store-link-props :type type
 482                               :link url
 483                               :description title
 484                               :initial region)
 485         (raise-frame)
 486         (org-remember nil (string-to-char template)))
 487
 488     (message "Org-mode not loaded."))
 489   nil)
 490
 491 (defun org-protocol-open-source (fname)
 492   "Process an org-protocol://open-source:// style url.
 493
 494 Change a filename by mapping URLs to local filenames as set
 495 in `org-protocol-project-alist'.
 496
 497 The location for a browser's bookmark should look like this:
 498
 499   javascript:location.href='org-protocol://open-source://'+ \\
 500         encodeURIComponent(location.href)"
 501
 502   ;; As we enter this function for a match on our protocol, the return value
 503   ;; defaults to nil.
 504   (let ((result nil)
 505         (f (org-protocol-unhex-string fname)))
 506     (catch 'result
 507       (dolist (prolist org-protocol-project-alist)
 508         (let* ((base-url (plist-get (cdr prolist) :base-url))
 509                (wsearch (regexp-quote base-url)))
 510
 511           (when (string-match wsearch f)
 512             (let* ((wdir (plist-get (cdr prolist) :working-directory))
 513                    (strip-suffix (plist-get (cdr prolist) :online-suffix))
 514                    (add-suffix (plist-get (cdr prolist) :working-suffix))
 515                    ;; Strip "[?#].*$" if `f' is a redirect with another
 516                    ;; ending than strip-suffix here:
 517                    (f1 (substring f 0 (string-match "\\([\\?#].*\\)?$" f)))
 518                    (start-pos (+ (string-match wsearch f1) (length base-url)))
 519                    (end-pos (string-match
 520                              (regexp-quote strip-suffix) f1))
 521                    ;; We have to compare redirects without suffix below:
 522                    (f2 (concat wdir (substring f1 start-pos end-pos)))
 523                    (the-file (concat f2 add-suffix)))
 524
 525               ;; Note: the-file may still contain `%C3' et al here because browsers
 526               ;; tend to encode `&auml;' in URLs to `%25C3' - `%25' being `%'.
 527               ;; So the results may vary.
 528
 529               ;; -- start redirects --
 530               (unless (file-exists-p the-file)
 531                 (message "File %s does not exist.\nTesting for rewritten URLs." the-file)
 532                 (let ((rewrites (plist-get (cdr prolist) :rewrites)))
 533                   (when rewrites
 534                     (message "Rewrites found: %S" rewrites)
 535                     (mapc
 536                      (lambda (rewrite)
 537                        "Try to match a rewritten URL and map it to a real file."
 538                        ;; Compare redirects without suffix:
 539                        (if (string-match (car rewrite) f2)
 540                            (throw 'result (concat wdir (cdr rewrite)))))
 541                      rewrites))))
 542               ;; -- end of redirects --
 543
 544               (if (file-readable-p the-file)
 545                   (throw 'result the-file))
 546               (if (file-exists-p the-file)
 547                   (message "%s: permission denied!" the-file)
 548                 (message "%s: no such file or directory." the-file))))))
 549       result)))
 550
 551
 552 ;;; Core functions:
 553
 554 (defun org-protocol-check-filename-for-protocol (fname restoffiles client)
 555   "Detect if `org-protocol-the-protocol' and a known sub-protocol is used in fname.
 556 Sub-protocols are registered in `org-protocol-protocol-alist' and
 557 `org-protocol-protocol-alist-default'.
 558 This is, how the matching is done:
 559
 560   (string-match \"protocol:/+sub-protocol:/+\" ...)
 561
 562 protocol and sub-protocol are regexp-quoted.
 563
 564 If a matching protcol is found, the protcol is stripped from fname and the
 565 result is passed to the protocols function as the only parameter. If the
 566 function returns nil, the filename is removed from the list of filenames
 567 passed from emacsclient to the server.
 568 If the function returns a non nil value, that value is passed to the server
 569 as filename."
 570   (let ((sub-protocols (append org-protocol-protocol-alist org-protocol-protocol-alist-default)))
 571     (catch 'fname
 572       (let ((the-protocol (concat (regexp-quote org-protocol-the-protocol) ":/+")))
 573         (when (string-match the-protocol fname)
 574           (dolist (prolist sub-protocols)
 575             (let ((proto (concat the-protocol (regexp-quote (plist-get (cdr prolist) :protocol)) ":/+")))
 576               (when (string-match proto fname)
 577                 (let* ((func (plist-get (cdr prolist) :function))
 578                        (greedy (plist-get (cdr prolist) :greedy))
 579                        (splitted (split-string fname proto))
 580                        (result (if greedy restoffiles (cadr splitted))))
 581                   (when (plist-get (cdr prolist) :kill-client)
 582                     (message "Greedy org-protocol handler. Killing client.")
 583                     (server-edit))
 584                   (when (fboundp func)
 585                     (unless greedy
 586                       (throw 'fname (funcall func result)))
 587                     (funcall func result)
 588                     (throw 'fname t))))))))
 589       ;; (message "fname: %s" fname)
 590       fname)))
 591
 592
 593 (defadvice server-visit-files (before org-protocol-detect-protocol-server activate)
 594   "Advice server-visit-flist to call `org-protocol-modify-filename-for-protocol'."
 595   (let ((flist (if org-protocol-reverse-list-of-files
 596                    (reverse  (ad-get-arg 0))
 597                  (ad-get-arg 0)))
 598         (client (ad-get-arg 1)))
 599     (catch 'greedy
 600       (dolist (var flist)
 601         (let ((fname  (expand-file-name (car var)))) ;; `\' to `/' on windows. FIXME: could this be done any better?
 602           (setq fname (org-protocol-check-filename-for-protocol fname (member var flist)  client))
 603           (if (eq fname t) ;; greedy? We need the `t' return value.
 604               (progn
 605                 (ad-set-arg 0 nil)
 606                 (throw 'greedy t))
 607             (if (stringp fname) ;; probably filename
 608                 (setcar var fname)
 609               (ad-set-arg 0 (delq var (ad-get-arg 0))))))
 610         ))))
 611
 612 ;;; Org specific functions:
 613
 614 (defun org-protocol-create-for-org ()
 615   "Create a org-protocol project for the current file's Org-mode project.
 616 This works, if the file visited is part of a publishing project in
 617 `org-publish-project-alist'. This functions calls `org-protocol-create' to do
 618 most of the work."
 619   (interactive)
 620   (require 'org-publish)
 621   (org-publish-initialize-files-alist)
 622   (let ((all (or (org-publish-get-project-from-filename buffer-file-name))))
 623     (if all (org-protocol-create (cdr all))
 624       (message "Not in an org-project. Did mean %s?"
 625                (substitute-command-keys"\\[org-protocol-create]")))))
 626
 627
 628 (defun org-protocol-create(&optional project-plist)
 629   "Create a new org-protocol project interactively.
 630 An org-protocol project is an entry in `org-protocol-project-alist'
 631 which is used by `org-protocol-open-source'.
 632 Optionally use project-plist to initialize the defaults for this project. If
 633 project-plist is the CDR of an element in `org-publish-project-alist', reuse
 634 :base-directory, :html-extension and :base-extension."
 635   (interactive)
 636   (let ((working-dir (expand-file-name(or (plist-get project-plist :base-directory) default-directory)))
 637         (base-url "http://orgmode.org/worg/")
 638         (strip-suffix (or (plist-get project-plist :html-extension) ".html"))
 639         (working-suffix (if (plist-get project-plist :base-extension)
 640                             (concat "." (plist-get project-plist :base-extension))
 641                           ".org"))
 642
 643         (worglet-buffer nil)
 644
 645         (insert-default-directory t)
 646         (minibuffer-allow-text-properties nil))
 647
 648     (setq base-url (read-string "Base URL of published content: " base-url nil base-url t))
 649     (if (not (string-match "\\/$" base-url))
 650         (setq base-url (concat base-url "/")))
 651
 652     (setq working-dir
 653           (expand-file-name
 654            (read-directory-name "Local working directory: " working-dir working-dir t)))
 655     (if (not (string-match "\\/$" working-dir))
 656         (setq working-dir (concat working-dir "/")))
 657
 658     (setq strip-suffix
 659           (read-string
 660            (concat "Extension to strip from published URLs ("strip-suffix"): ")
 661                    strip-suffix nil strip-suffix t))
 662
 663     (setq working-suffix
 664           (read-string
 665            (concat "Extension of editable files ("working-suffix"): ")
 666                    working-suffix nil working-suffix t))
 667
 668     (when (yes-or-no-p "Save the new org-protocol-project to your init file? ")
 669       (setq org-protocol-project-alist
 670             (cons `(,base-url . (:base-url ,base-url
 671                                  :working-directory ,working-dir
 672                                  :online-suffix ,strip-suffix
 673                                  :working-suffix ,working-suffix))
 674                   org-protocol-project-alist))
 675       (customize-save-variable 'org-protocol-project-alist org-protocol-project-alist))))
 676
 677 (provide 'org-protocol)
 678
 679 ;; arch-tag: b5c5c2ac-77cf-4a94-a649-2163dff95846
 680 ;;; org-protocol.el ends here