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org-mobile.el (43047B)


      1 ;;; org-mobile.el --- Code for Asymmetric Sync With a Mobile Device -*- lexical-binding: t; -*-
      2 ;; Copyright (C) 2009-2024 Free Software Foundation, Inc.
      3 ;;
      4 ;; Author: Carsten Dominik <carsten.dominik@gmail.com>
      5 ;; Keywords: outlines, hypermedia, calendar, text
      6 ;; URL: https://orgmode.org
      7 ;;
      8 ;; This file is part of GNU Emacs.
      9 ;;
     10 ;; GNU Emacs is free software: you can redistribute it and/or modify
     11 ;; it under the terms of the GNU General Public License as published by
     12 ;; the Free Software Foundation, either version 3 of the License, or
     13 ;; (at your option) any later version.
     14 ;;
     15 ;; GNU Emacs is distributed in the hope that it will be useful,
     16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
     17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     18 ;; GNU General Public License for more details.
     19 ;;
     20 ;; You should have received a copy of the GNU General Public License
     21 ;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
     22 ;;
     23 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
     24 ;;
     25 ;;; Commentary:
     26 ;;
     27 ;; This file contains the code to interact with a mobile application,
     28 ;; such as Richard Moreland's iPhone application MobileOrg, or the
     29 ;; Android version by Matthew Jones.  This code is documented in
     30 ;; Appendix B of the Org manual.  The code is not specific for the
     31 ;; iPhone and Android - any external viewer/flagging/editing
     32 ;; application that uses the same conventions could be used.
     33 
     34 (require 'org-macs)
     35 (org-assert-version)
     36 
     37 (require 'cl-lib)
     38 (require 'org)
     39 (require 'org-agenda)
     40 (require 'ol)
     41 
     42 ;;; Code:
     43 
     44 (defgroup org-mobile nil
     45   "Options concerning support for a viewer/editor on a mobile device."
     46   :tag "Org Mobile"
     47   :group 'org)
     48 
     49 (defcustom org-mobile-files '(org-agenda-files)
     50   "Files to be staged for the mobile application.
     51 
     52 This is basically a list of files and directories.  Files will be staged
     53 directly.  Directories will be search for files with the extension \".org\".
     54 In addition to this, the list may also contain the following symbols:
     55 
     56 `org-agenda-files'
     57      This means include the complete, unrestricted list of files given in
     58      the variable `org-agenda-files'.
     59 
     60 `org-agenda-text-search-extra-files'
     61      Include the files given in the variable
     62      `org-agenda-text-search-extra-files'."
     63   :group 'org-mobile
     64   :type '(list :greedy t
     65 	       (option (const :tag "org-agenda-files" org-agenda-files))
     66 	       (option (const :tag "org-agenda-text-search-extra-files"
     67 			      org-agenda-text-search-extra-files))
     68 	       (repeat :inline t :tag "Additional files"
     69 		       (file))))
     70 
     71 (defcustom org-mobile-files-exclude-regexp ""
     72   "A regexp to exclude files from `org-mobile-files'."
     73   :group 'org-mobile
     74   :version "24.1"
     75   :type 'regexp)
     76 
     77 (defcustom org-mobile-directory ""
     78   "The WebDAV directory where the interaction with the mobile takes place."
     79   :group 'org-mobile
     80   :type 'directory)
     81 
     82 (defcustom org-mobile-allpriorities "A B C"
     83   "Default set of priority cookies for the index file."
     84   :version "24.4"
     85   :package-version '(Org . "8.0")
     86   :type 'string
     87   :group 'org-mobile)
     88 
     89 (defcustom org-mobile-use-encryption nil
     90   "Non-nil means keep only encrypted files on the WebDAV server.
     91 
     92 Encryption uses AES-256, with a password given in
     93 `org-mobile-encryption-password'.  When nil, plain files are kept
     94 on the server.
     95 
     96 Turning on encryption requires setting the same password in the
     97 mobile application.  Before turning this on, check if the mobile
     98 application does support it."
     99   :group 'org-mobile
    100   :version "24.1"
    101   :type 'boolean)
    102 
    103 (defcustom org-mobile-encryption-tempfile "~/orgtmpcrypt"
    104   "File that is being used as a temporary file for encryption.
    105 This must be local file on your local machine (not on the WebDAV server).
    106 You might want to put this file into a directory where only you have access."
    107   :group 'org-mobile
    108   :version "24.1"
    109   :type 'directory)
    110 
    111 (defcustom org-mobile-encryption-password ""
    112   "Password for encrypting files uploaded to the server.
    113 
    114 This is a single password which is used for AES-256 encryption.  The same
    115 password must also be set in the mobile application.  All Org files,
    116 including \"mobileorg.org\" will be encrypted using this password.
    117 
    118 SECURITY CONSIDERATIONS:
    119 
    120 Note that, when Org runs the encryption commands, the password could
    121 be visible briefly on your system with the `ps' command.  So this method is
    122 only intended to keep the files secure on the server, not on your own machine.
    123 
    124 Also, if you set this variable in an init file (.emacs or .emacs.d/init.el
    125 or custom.el...) and if that file is stored in a way so that other can read
    126 it, this also limits the security of this approach.  You can also leave
    127 this variable empty - Org will then ask for the password once per Emacs
    128 session."
    129   :group 'org-mobile
    130   :version "24.1"
    131   :type '(string :tag "Password"))
    132 
    133 (defvar org-mobile-encryption-password-session nil)
    134 
    135 (defun org-mobile-encryption-password ()
    136   (or (org-string-nw-p org-mobile-encryption-password)
    137       (org-string-nw-p org-mobile-encryption-password-session)
    138       (setq org-mobile-encryption-password-session
    139 	    (read-passwd "Password for mobile application: " t))))
    140 
    141 (defcustom org-mobile-inbox-for-pull "~/org/from-mobile.org"
    142   "The file where captured notes and flags will be appended to.
    143 During the execution of `org-mobile-pull', the file
    144 `org-mobile-capture-file' is emptied as soon as its contents have
    145 been appended to the file given here.  This file should be in
    146 `org-directory', and not in the staging area or on the web server."
    147   :group 'org-mobile
    148   :type 'file)
    149 
    150 (defconst org-mobile-capture-file "mobileorg.org"
    151   "The capture file where the mobile stores captured notes and flags.
    152 This must not be changed, because the mobile application assumes this name.")
    153 
    154 (defcustom org-mobile-index-file "index.org"
    155   "Index file with links to all Org files.
    156 It should be loaded by the mobile application.  The file name is
    157 relative to `org-mobile-directory'.  The \"Address\" field in the
    158 mobile application setup should point to this file."
    159   :group 'org-mobile
    160   :type 'file)
    161 
    162 (defcustom org-mobile-agendas 'all
    163   "The agendas that should be pushed to the mobile application.
    164 
    165 Allowed values:
    166 
    167 `default'  the weekly agenda and the global TODO list
    168 `custom'   all custom agendas defined by the user
    169 `all'      the custom agendas and the default ones
    170 `list'     a list of selection key(s) as string."
    171   :group 'org-mobile
    172   :version "24.1"
    173   :type '(choice
    174 	  (const :tag "Default Agendas" default)
    175 	  (const :tag "Custom Agendas" custom)
    176 	  (const :tag "Default and Custom Agendas" all)
    177 	  (repeat :tag "Selected"
    178 		  (string :tag "Selection Keys"))))
    179 
    180 (defcustom org-mobile-force-id-on-agenda-items t
    181   "Non-nil means make all agenda items carry an ID."
    182   :group 'org-mobile
    183   :type 'boolean)
    184 
    185 (defcustom org-mobile-force-mobile-change nil
    186   "Non-nil means force the change made on the mobile device.
    187 So even if there have been changes to the computer version of the entry,
    188 force the new value set on the mobile.
    189 When nil, mark the entry from the mobile with an error message.
    190 Instead of nil or t, this variable can also be a list of symbols, indicating
    191 the editing types for which the mobile version should always dominate."
    192   :group 'org-mobile
    193   :type '(choice
    194 	  (const :tag "Always" t)
    195 	  (const :tag "Never" nil)
    196 	  (set :greedy t :tag "Specify"
    197 	       (const todo)
    198 	       (const tags)
    199 	       (const priority)
    200 	       (const heading)
    201 	       (const body))))
    202 
    203 (defcustom org-mobile-checksum-binary (or (executable-find "shasum")
    204 					  (executable-find "sha1sum")
    205 					  (executable-find "md5sum")
    206 					  (executable-find "md5"))
    207   "Executable used for computing checksums of agenda files."
    208   :group 'org-mobile
    209   :type 'string)
    210 
    211 (defvar org-mobile-pre-push-hook nil
    212   "Hook run before running `org-mobile-push'.
    213 This could be used to clean up `org-mobile-directory', for example to
    214 remove files that used to be included in the agenda but no longer are.
    215 The presence of such files would not really be a problem, but after time
    216 they may accumulate.")
    217 
    218 (defvar org-mobile-post-push-hook nil
    219   "Hook run after running `org-mobile-push'.
    220 If Emacs does not have direct write access to the WebDAV directory used
    221 by the mobile device, this hook should be used to copy all files from the
    222 local staging directory `org-mobile-directory' to the WebDAV directory,
    223 for example using `rsync' or `scp'.")
    224 
    225 (defvar org-mobile-pre-pull-hook nil
    226   "Hook run before executing `org-mobile-pull'.
    227 If Emacs does not have direct write access to the WebDAV directory used
    228 by the mobile device, this hook should be used to copy the capture file
    229 `mobileorg.org' from the WebDAV location to the local staging
    230 directory `org-mobile-directory'.")
    231 
    232 (defvar org-mobile-post-pull-hook nil
    233   "Hook run after running `org-mobile-pull', only if new items were found.
    234 If Emacs does not have direct write access to the WebDAV directory used
    235 by the mobile device, this hook should be used to copy the emptied
    236 capture file `mobileorg.org' back to the WebDAV directory, for example
    237 using `rsync' or `scp'.")
    238 
    239 (defconst org-mobile-action-alist '(("edit" . org-mobile-edit))
    240   "Alist with flags and actions for mobile sync.
    241 
    242 When flagging an entry, the mobile application creates entries
    243 that look like
    244 
    245   * F(action:data)  [[id:entry-id][entry title]]
    246 
    247 This alist defines that the ACTION in the parentheses of F()
    248 should mean, i.e. what action should be taken.  The :data part in
    249 the parenthesis is optional.  If present, the string after the
    250 colon will be passed to the action function as the first argument
    251 variable.
    252 
    253 The car of each elements of the alist is an actions string.  The
    254 cdr is a function that is called with the cursor on the headline
    255 of that entry.  It should accept three arguments, the :data part,
    256 the old and new values for the entry.")
    257 
    258 (defvar org-mobile-last-flagged-files nil
    259   "List of files containing entries flagged in the latest pull.")
    260 
    261 (defvar org-mobile-files-alist nil)
    262 (defvar org-mobile-checksum-files nil)
    263 
    264 ;; Add org mobile commands to the main org menu
    265 (easy-menu-add-item
    266  org-org-menu
    267  nil
    268  '("MobileOrg"
    269    ["Push Files and Views" org-mobile-push t]
    270    ["Get Captured and Flagged" org-mobile-pull t]
    271    ["Find FLAGGED Tasks" (org-agenda nil "?") :active t :keys "\\[org-agenda] ?"]
    272    "--"
    273    ["Setup" (customize-group 'org-mobile) t]))
    274 
    275 (defun org-mobile-prepare-file-lists ()
    276   (setq org-mobile-files-alist (org-mobile-files-alist))
    277   (setq org-mobile-checksum-files nil))
    278 
    279 (defun org-mobile-files-alist ()
    280   "Expand the list in `org-mobile-files' to a list of existing files.
    281 Also exclude files matching `org-mobile-files-exclude-regexp'."
    282   (let* ((include-archives
    283 	  (and (member 'org-agenda-text-search-extra-files org-mobile-files)
    284 	       (member 'agenda-archives	org-agenda-text-search-extra-files)
    285 	       t))
    286 	 (files
    287 	  (apply 'append
    288 		 (mapcar
    289 		  (lambda (f)
    290 		    (cond
    291 		     ((eq f 'org-agenda-files)
    292 		      (org-agenda-files	t include-archives))
    293 		     ((eq f 'org-agenda-text-search-extra-files)
    294 		      (delq 'agenda-archives
    295 			    (copy-sequence
    296 			     org-agenda-text-search-extra-files)))
    297 		     ((and (stringp f) (file-directory-p f))
    298 		      (directory-files f 'full "\\.org\\'"))
    299 		     ((and (stringp f) (file-exists-p f))
    300 		      (list f))
    301 		     (t nil)))
    302 		  org-mobile-files)))
    303 	 (files (delq
    304 		 nil
    305 		 (mapcar (lambda (f)
    306 			   (unless (and (not (string= org-mobile-files-exclude-regexp ""))
    307 					(string-match org-mobile-files-exclude-regexp f))
    308 			     (identity f)))
    309 			 files)))
    310 	 (orgdir-uname (file-name-as-directory (file-truename org-directory)))
    311 	 (orgdir-re (concat "\\`" (regexp-quote orgdir-uname)))
    312 	 uname seen rtn file link-name)
    313     ;; Make the files unique, and determine the name under which they will
    314     ;; be listed.
    315     (while (setq file (pop files))
    316       (if (not (file-name-absolute-p file))
    317 	  (setq file (expand-file-name file org-directory)))
    318       (setq uname (file-truename file))
    319       (unless (member uname seen)
    320 	(push uname seen)
    321 	(if (string-match orgdir-re uname)
    322 	    (setq link-name (substring uname (match-end 0)))
    323 	  (setq link-name (file-name-nondirectory uname)))
    324 	(push (cons file link-name) rtn)))
    325     (nreverse rtn)))
    326 
    327 ;;;###autoload
    328 (defun org-mobile-push ()
    329   "Push the current state of Org affairs to the target directory.
    330 This will create the index file, copy all agenda files there, and also
    331 create all custom agenda views, for upload to the mobile phone."
    332   (interactive)
    333   (let ((org-agenda-buffer-name "*SUMO*")
    334 	(org-agenda-tag-filter org-agenda-tag-filter)
    335 	(org-agenda-redo-command org-agenda-redo-command))
    336     ;; Offer to save agenda-related buffers before pushing, preventing
    337     ;; "Non-existent agenda file" prompt for lock files (see #19448).
    338     (let ((agenda-buffers (org-buffer-list 'agenda)))
    339       (save-some-buffers nil
    340 			 (lambda () (memq (current-buffer) agenda-buffers))))
    341     (save-excursion
    342       (save-restriction
    343 	(save-window-excursion
    344 	  (run-hooks 'org-mobile-pre-push-hook)
    345 	  (org-mobile-check-setup)
    346 	  (org-mobile-prepare-file-lists)
    347 	  (message "Creating agendas...")
    348 	  (let ((inhibit-redisplay t)
    349 		(org-agenda-files (mapcar 'car org-mobile-files-alist)))
    350 	    (org-mobile-create-sumo-agenda))
    351 	  (message "Creating agendas...done")
    352 	  (org-save-all-org-buffers) ; to save any IDs created by this process
    353 	  (message "Copying files...")
    354 	  (org-mobile-copy-agenda-files)
    355 	  (message "Writing index file...")
    356 	  (org-mobile-create-index-file)
    357 	  (message "Writing checksums...")
    358 	  (org-mobile-write-checksums)
    359 	  (run-hooks 'org-mobile-post-push-hook)))))
    360   (org-agenda-maybe-redo)
    361   (message "Files for mobile viewer staged"))
    362 
    363 (defvar org-mobile-before-process-capture-hook nil
    364   "Hook that is run after content was moved to `org-mobile-inbox-for-pull'.
    365 The inbox file is visited by the current buffer, and the buffer is
    366 narrowed to the newly captured data.")
    367 
    368 ;;;###autoload
    369 (defun org-mobile-pull ()
    370   "Pull the contents of `org-mobile-capture-file' and integrate them.
    371 Apply all flagged actions, flag entries to be flagged and then call an
    372 agenda view showing the flagged items."
    373   (interactive)
    374   (org-mobile-check-setup)
    375   (run-hooks 'org-mobile-pre-pull-hook)
    376   (let ((insertion-marker (org-mobile-move-capture)))
    377     (if (not (markerp insertion-marker))
    378 	(message "No new items")
    379       (org-with-point-at insertion-marker
    380 	(save-restriction
    381 	  (narrow-to-region (point) (point-max))
    382 	  (run-hooks 'org-mobile-before-process-capture-hook)))
    383       (org-with-point-at insertion-marker
    384 	(org-mobile-apply (point) (point-max)))
    385       (move-marker insertion-marker nil)
    386       (run-hooks 'org-mobile-post-pull-hook)
    387       (when org-mobile-last-flagged-files
    388 	;; Make an agenda view of flagged entries, but only in the files
    389 	;; where stuff has been added.
    390 	(put 'org-agenda-files 'org-restrict org-mobile-last-flagged-files)
    391 	(let ((org-agenda-keep-restricted-file-list t))
    392 	  (org-agenda nil "?"))))))
    393 
    394 (defun org-mobile-check-setup ()
    395   "Check if `org-mobile-directory' has been set up."
    396   (org-mobile-cleanup-encryption-tempfile)
    397   (unless (and org-directory
    398 	       (stringp org-directory)
    399 	       (string-match "\\S-" org-directory)
    400 	       (file-exists-p org-directory)
    401 	       (file-directory-p org-directory))
    402     (error
    403      "Please set `org-directory' to the directory where your org files live"))
    404   (unless (and org-mobile-directory
    405 	       (stringp org-mobile-directory)
    406 	       (string-match "\\S-" org-mobile-directory)
    407 	       (file-exists-p org-mobile-directory)
    408 	       (file-directory-p org-mobile-directory))
    409     (error
    410      "Variable `org-mobile-directory' must point to an existing directory"))
    411   (unless (and org-mobile-inbox-for-pull
    412 	       (stringp org-mobile-inbox-for-pull)
    413 	       (string-match "\\S-" org-mobile-inbox-for-pull)
    414 	       (file-exists-p
    415 		(file-name-directory org-mobile-inbox-for-pull)))
    416     (error
    417      "Variable `org-mobile-inbox-for-pull' must point to a file in an existing directory"))
    418   (unless (and org-mobile-checksum-binary
    419 	       (string-match "\\S-" org-mobile-checksum-binary))
    420     (error "No executable found to compute checksums"))
    421   (when org-mobile-use-encryption
    422     (unless (string-match "\\S-" (org-mobile-encryption-password))
    423       (error
    424        "To use encryption, you must set `org-mobile-encryption-password'"))
    425     (unless (file-writable-p org-mobile-encryption-tempfile)
    426       (error "Cannot write to encryption tempfile %s"
    427 	     org-mobile-encryption-tempfile))
    428     (unless (executable-find "openssl")
    429       (error "OpenSSL is needed to encrypt files"))))
    430 
    431 (defun org-mobile-create-index-file ()
    432   "Write the index file in the WebDAV directory."
    433   (let ((files-alist (sort (copy-sequence org-mobile-files-alist)
    434 			   (lambda (a b) (string< (cdr a) (cdr b)))))
    435 	(def-todo (default-value 'org-todo-keywords))
    436 	(def-tags org-tag-alist)
    437 	(target-file (expand-file-name org-mobile-index-file
    438 				       org-mobile-directory))
    439 	todo-kwds done-kwds tags)
    440     (when (stringp (car def-todo))
    441       (setq def-todo (list (cons 'sequence def-todo))))
    442     (org-agenda-prepare-buffers (mapcar 'car files-alist))
    443     (setq done-kwds (org-uniquify org-done-keywords-for-agenda))
    444     (setq todo-kwds (org-delete-all
    445 		     done-kwds
    446 		     (org-uniquify org-todo-keywords-for-agenda)))
    447     (setq tags (mapcar 'car (org-global-tags-completion-table
    448 			     (mapcar 'car files-alist))))
    449     (with-temp-file (if org-mobile-use-encryption org-mobile-encryption-tempfile
    450 		      target-file)
    451       (insert "#+READONLY\n")
    452       (dolist (entry def-todo)
    453 	(let ((kwds (mapcar (lambda (x)
    454 			      (if (string-match "(" x)
    455 				  (substring x 0 (match-beginning 0))
    456 				x))
    457 			    (cdr entry))))
    458 	  (insert "#+TODO: " (mapconcat #'identity kwds " ") "\n")
    459 	  (let* ((dwds (or (member "|" kwds) (last kwds)))
    460 		 (twds (org-delete-all dwds kwds)))
    461 	    (setq todo-kwds (org-delete-all twds todo-kwds))
    462 	    (setq done-kwds (org-delete-all dwds done-kwds)))))
    463       (when (or todo-kwds done-kwds)
    464 	(insert "#+TODO: " (mapconcat 'identity todo-kwds " ") " | "
    465 		(mapconcat 'identity done-kwds " ") "\n"))
    466       (setq def-tags (split-string (org-tag-alist-to-string def-tags t)))
    467       (setq tags (org-delete-all def-tags tags))
    468       (setq tags (sort tags (lambda (a b) (string< (downcase a) (downcase b)))))
    469       (setq tags (append def-tags tags nil))
    470       (insert "#+TAGS: " (mapconcat 'identity tags " ") "\n")
    471       (insert "#+ALLPRIORITIES: " org-mobile-allpriorities "\n")
    472       (when (file-exists-p (expand-file-name
    473 			    "agendas.org" org-mobile-directory))
    474 	(insert "* [[file:agendas.org][Agenda Views]]\n"))
    475       (pcase-dolist (`(,_ . ,link-name) files-alist)
    476 	(insert (format "* [[file:%s][%s]]\n" link-name link-name)))
    477       (push (cons org-mobile-index-file (md5 (buffer-string)))
    478 	    org-mobile-checksum-files))
    479     (when org-mobile-use-encryption
    480       (org-mobile-encrypt-and-move org-mobile-encryption-tempfile
    481 				   target-file)
    482       (org-mobile-cleanup-encryption-tempfile))))
    483 
    484 (defun org-mobile-copy-agenda-files ()
    485   "Copy all agenda files to the stage or WebDAV directory."
    486   (let ((files-alist org-mobile-files-alist)
    487 	file buf entry link-name target-path target-dir check)
    488     (while (setq entry (pop files-alist))
    489       (setq file (car entry) link-name (cdr entry))
    490       (when (file-exists-p file)
    491 	(setq target-path (expand-file-name link-name org-mobile-directory)
    492 	      target-dir (file-name-directory target-path))
    493 	(unless (file-directory-p target-dir)
    494 	  (make-directory target-dir 'parents))
    495 	(if org-mobile-use-encryption
    496 	    (org-mobile-encrypt-and-move file target-path)
    497 	  (copy-file file target-path 'ok-if-already-exists))
    498 	(setq check (shell-command-to-string
    499 		     (concat (shell-quote-argument org-mobile-checksum-binary)
    500 			     " "
    501 			     (shell-quote-argument (expand-file-name file)))))
    502 	(when (string-match "[[:xdigit:]]\\{30,40\\}" check)
    503 	  (push (cons link-name (match-string 0 check))
    504 		org-mobile-checksum-files))))
    505 
    506     (setq file (expand-file-name org-mobile-capture-file
    507 				 org-mobile-directory))
    508     (save-excursion
    509       (setq buf (find-file file))
    510       (when (and (= (point-min) (point-max)))
    511 	(insert "\n")
    512 	(save-buffer)
    513 	(when org-mobile-use-encryption
    514 	  (write-file org-mobile-encryption-tempfile)
    515 	  (org-mobile-encrypt-and-move org-mobile-encryption-tempfile file)))
    516       (push (cons org-mobile-capture-file (md5 (buffer-string)))
    517 	    org-mobile-checksum-files))
    518     (org-mobile-cleanup-encryption-tempfile)
    519     (kill-buffer buf)))
    520 
    521 (defun org-mobile-write-checksums ()
    522   "Create checksums for all files in `org-mobile-directory'.
    523 The table of checksums is written to the file mobile-checksums."
    524   (let ((sumfile (expand-file-name "checksums.dat" org-mobile-directory))
    525 	(files org-mobile-checksum-files)
    526 	entry file sum)
    527     (with-temp-file sumfile
    528       (set-buffer-file-coding-system 'undecided-unix nil)
    529       (while (setq entry (pop files))
    530 	(setq file (car entry) sum (cdr entry))
    531 	(insert (format "%s  %s\n" sum file))))))
    532 
    533 (defun org-mobile-sumo-agenda-command ()
    534   "Return an agenda custom command that comprises all custom commands."
    535   (let ((custom-list
    536 	 ;; normalize different versions
    537 	 (delq nil
    538 	       (mapcar
    539 		(lambda (x)
    540 		  (cond ((stringp (cdr x)) nil)
    541 			((stringp (nth 1 x)) x)
    542 			((not (nth 1 x)) (cons (car x) (cons "" (cddr x))))
    543 			(t (cons (car x) (cons "" (cdr x))))))
    544 		org-agenda-custom-commands)))
    545 	(default-list '(("a" "Agenda" agenda) ("t" "All TODO" alltodo)))
    546 	thelist	atitle new e key desc type match settings cmds gkey gdesc gsettings cnt)
    547     (cond
    548      ((eq org-mobile-agendas 'custom)
    549       (setq thelist custom-list))
    550      ((eq org-mobile-agendas 'default)
    551       (setq thelist default-list))
    552      ((eq org-mobile-agendas 'all)
    553       (setq thelist custom-list)
    554       (unless (assoc "t" thelist) (push '("t" "ALL TODO" alltodo) thelist))
    555       (unless (assoc "a" thelist) (push '("a" "Agenda" agenda) thelist)))
    556      ((listp org-mobile-agendas)
    557       (setq thelist (append custom-list default-list))
    558       (setq thelist (delq nil (mapcar (lambda (k) (assoc k thelist))
    559 				      org-mobile-agendas)))))
    560     (while (setq e (pop thelist))
    561       (cond
    562        ((stringp (cdr e))
    563 	;; this is a description entry - skip it
    564 	)
    565        ((eq (nth 2 e) 'search)
    566 	;; Search view is interactive, skip
    567 	)
    568        ((memq (nth 2 e) '(todo-tree tags-tree occur-tree))
    569 	;; These are trees, not really agenda commands
    570 	)
    571        ((and (memq (nth 2 e) '(todo tags tags-todo))
    572 	     (or (null (nth 3 e))
    573 		 (not (string-match "\\S-" (nth 3 e)))))
    574 	;; These would be interactive because the match string is empty
    575 	)
    576        ((memq (nth 2 e) '(agenda alltodo todo tags tags-todo))
    577 	;; a normal command
    578 	(setq key (car e) desc (nth 1 e) type (nth 2 e) match (nth 3 e)
    579 	      settings (nth 4 e))
    580 	(setq settings
    581 	      (cons (list 'org-agenda-title-append
    582 			  (concat "<after>KEYS=" key " TITLE: "
    583 				  (if (and (stringp desc) (> (length desc) 0))
    584 				      desc (symbol-name type))
    585 				  "</after>"))
    586 		    settings))
    587 	(push (list type match settings) new))
    588        ((or (functionp (nth 2 e)) (symbolp (nth 2 e)))
    589 	;; A user-defined function, which can do anything, so simply
    590 	;; ignore it.
    591 	)
    592        (t
    593 	;; a block agenda
    594 	(setq gkey (car e) gdesc (nth 1 e) gsettings (nth 3 e) cmds (nth 2 e))
    595 	(setq cnt 0)
    596 	(while (setq e (pop cmds))
    597 	  (setq type (car e) match (nth 1 e) settings (nth 2 e))
    598 	  (setq atitle (if (string= "" gdesc) match gdesc))
    599 	  (setq settings (append gsettings settings))
    600 	  (setq settings
    601 		(cons (list 'org-agenda-title-append
    602 			    (concat "<after>KEYS=" gkey "#" (number-to-string
    603 							     (setq cnt (1+ cnt)))
    604 				    " TITLE: " atitle "</after>"))
    605 		      settings))
    606 	  (push (list type match settings) new)))))
    607     (and new (list "X" "SUMO" (reverse new)
    608 		   '((org-agenda-compact-blocks nil))))))
    609 
    610 (defvar org-mobile-creating-agendas nil)
    611 (defun org-mobile-write-agenda-for-mobile (file)
    612   (let ((all (buffer-string)) in-date id pl prefix line app short m sexp)
    613     (with-temp-file file
    614       (org-mode)
    615       (insert "#+READONLY\n")
    616       (insert all)
    617       (goto-char (point-min))
    618       (while (not (eobp))
    619 	(cond
    620 	 ((looking-at "[ \t]*$")) ; keep empty lines
    621 	 ((looking-at "=+$")
    622 	  ;; remove underlining
    623           (delete-region (point) (line-end-position)))
    624 	 ((get-text-property (point) 'org-agenda-structural-header)
    625 	  (setq in-date nil)
    626 	  (setq app (get-text-property (point) 'org-agenda-title-append))
    627 	  (setq short (get-text-property (point) 'short-heading))
    628 	  (when (and short (looking-at ".+"))
    629 	    (replace-match short nil t)
    630 	    (forward-line 0))
    631 	  (when app
    632 	    (end-of-line 1)
    633 	    (insert app)
    634 	    (forward-line 0))
    635 	  (insert "* "))
    636 	 ((get-text-property (point) 'org-agenda-date-header)
    637 	  (setq in-date t)
    638 	  (insert "** "))
    639 	 ((setq m (or (get-text-property (point) 'org-hd-marker)
    640 		      (get-text-property (point) 'org-marker)))
    641 	  (setq sexp (member (get-text-property (point) 'type)
    642 			     '("diary" "sexp")))
    643           (if (setq pl (text-property-any (point) (line-end-position) 'org-heading t))
    644 	      (progn
    645 		(setq prefix (org-trim (buffer-substring
    646 					(point) pl))
    647 		      line (org-trim (buffer-substring
    648 				      pl
    649                                       (line-end-position))))
    650                 (delete-region (line-beginning-position) (line-end-position))
    651 		(insert line "<before>" prefix "</before>")
    652 		(forward-line 0))
    653 	    (and (looking-at "[ \t]+") (replace-match "")))
    654 	  (insert (if in-date "***  " "**  "))
    655 	  (end-of-line 1)
    656 	  (insert "\n")
    657 	  (unless sexp
    658 	    (insert (org-agenda-get-some-entry-text
    659 		     m 10 "   " 'planning)
    660 		    "\n")
    661 	    (when (setq id
    662 			(if (bound-and-true-p
    663 			     org-mobile-force-id-on-agenda-items)
    664 			    (org-id-get m 'create)
    665 			  (or (org-entry-get m "ID")
    666 			      (org-mobile-get-outline-path-link m))))
    667 	      (insert "   :PROPERTIES:\n   :ORIGINAL_ID: " id
    668 		      "\n   :END:\n")))))
    669 	(forward-line 1))
    670       (push (cons "agendas.org" (md5 (buffer-string)))
    671 	    org-mobile-checksum-files))
    672     (message "Agenda written to Org file %s" file)))
    673 
    674 (defun org-mobile-get-outline-path-link (pom)
    675   (org-with-point-at pom
    676     (concat "olp:"
    677 	    (org-mobile-escape-olp (file-name-nondirectory buffer-file-name))
    678 	    ":"
    679 	    (mapconcat 'org-mobile-escape-olp
    680 		       (org-get-outline-path)
    681 		       "/")
    682 	    "/"
    683 	    (org-mobile-escape-olp (nth 4 (org-heading-components))))))
    684 
    685 (defun org-mobile-escape-olp (s)
    686   (org-link-encode s '(?: ?/)))
    687 
    688 (defun org-mobile-create-sumo-agenda ()
    689   "Create a file that contains all custom agenda views."
    690   (interactive)
    691   (let* ((file (expand-file-name "agendas.org"
    692 				 org-mobile-directory))
    693 	 (file1 (if org-mobile-use-encryption
    694 		    org-mobile-encryption-tempfile
    695 		  file))
    696 	 (sumo (org-mobile-sumo-agenda-command))
    697 	 (org-agenda-custom-commands
    698 	  (list (append sumo (list (list file1)))))
    699 	 (org-mobile-creating-agendas t))
    700     (unless (file-writable-p file1)
    701       (error "Cannot write to file %s" file1))
    702     (when sumo
    703       (org-store-agenda-views))
    704     (when org-mobile-use-encryption
    705       (org-mobile-encrypt-and-move file1 file)
    706       (delete-file file1)
    707       (org-mobile-cleanup-encryption-tempfile))))
    708 
    709 (defun org-mobile-encrypt-and-move (infile outfile)
    710   "Encrypt INFILE locally to INFILE_enc, then move it to OUTFILE.
    711 We do this in two steps so that remote paths will work, even if the
    712 encryption program does not understand them."
    713   (let ((encfile (concat infile "_enc")))
    714     (org-mobile-encrypt-file infile encfile)
    715     (when outfile
    716       (copy-file encfile outfile 'ok-if-already-exists)
    717       (delete-file encfile))))
    718 
    719 (defun org-mobile-encrypt-file (infile outfile)
    720   "Encrypt INFILE to OUTFILE, using `org-mobile-encryption-password'."
    721   (shell-command
    722    (format "openssl enc -md md5 -aes-256-cbc -salt -pass %s -in %s -out %s"
    723 	   (shell-quote-argument (concat "pass:"
    724 					 (org-mobile-encryption-password)))
    725 	   (shell-quote-argument (expand-file-name infile))
    726 	   (shell-quote-argument (expand-file-name outfile)))))
    727 
    728 (defun org-mobile-decrypt-file (infile outfile)
    729   "Decrypt INFILE to OUTFILE, using `org-mobile-encryption-password'."
    730   (shell-command
    731    (format "openssl enc -md md5 -d -aes-256-cbc -salt -pass %s -in %s -out %s"
    732 	   (shell-quote-argument (concat "pass:"
    733 					 (org-mobile-encryption-password)))
    734 	   (shell-quote-argument (expand-file-name infile))
    735 	   (shell-quote-argument (expand-file-name outfile)))))
    736 
    737 (defun org-mobile-cleanup-encryption-tempfile ()
    738   "Remove the encryption tempfile if it exists."
    739   (and (stringp org-mobile-encryption-tempfile)
    740        (file-exists-p org-mobile-encryption-tempfile)
    741        (delete-file org-mobile-encryption-tempfile)))
    742 
    743 (defun org-mobile-move-capture ()
    744   "Move the contents of the capture file to the inbox file.
    745 Return a marker to the location where the new content has been added.
    746 If nothing new has been added, return nil."
    747   (interactive)
    748   (let* ((encfile nil)
    749 	 (capture-file (expand-file-name org-mobile-capture-file
    750 					 org-mobile-directory))
    751 	 (inbox-buffer (find-file-noselect org-mobile-inbox-for-pull))
    752 	 (capture-buffer
    753 	  (if (not org-mobile-use-encryption)
    754 	      (find-file-noselect capture-file)
    755 	    (org-mobile-cleanup-encryption-tempfile)
    756 	    (setq encfile (concat org-mobile-encryption-tempfile "_enc"))
    757 	    (copy-file capture-file encfile)
    758 	    (org-mobile-decrypt-file encfile org-mobile-encryption-tempfile)
    759 	    (find-file-noselect org-mobile-encryption-tempfile)))
    760 	 (insertion-point (make-marker))
    761 	 not-empty content)
    762     (with-current-buffer capture-buffer
    763       (setq content (buffer-string))
    764       (setq not-empty (string-match "\\S-" content))
    765       (when not-empty
    766 	(set-buffer inbox-buffer)
    767 	(widen)
    768 	(goto-char (point-max))
    769 	(or (bolp) (newline))
    770 	(move-marker insertion-point
    771 		     (prog1 (point) (insert content)))
    772 	(save-buffer)
    773 	(set-buffer capture-buffer)
    774 	(erase-buffer)
    775 	(save-buffer)
    776 	(org-mobile-update-checksum-for-capture-file (buffer-string))))
    777     (kill-buffer capture-buffer)
    778     (when org-mobile-use-encryption
    779       (org-mobile-encrypt-and-move org-mobile-encryption-tempfile
    780 				   capture-file)
    781       (org-mobile-cleanup-encryption-tempfile))
    782     (if not-empty insertion-point)))
    783 
    784 (defun org-mobile-update-checksum-for-capture-file (buffer-string)
    785   "Find the checksum line and modify it to match BUFFER-STRING."
    786   (let* ((file (expand-file-name "checksums.dat" org-mobile-directory))
    787 	 (buffer (find-file-noselect file)))
    788     (when buffer
    789       (with-current-buffer buffer
    790 	(when (re-search-forward (concat "\\([[:xdigit:]]\\{30,\\}\\).*?"
    791 					 (regexp-quote org-mobile-capture-file)
    792 					 "[ \t]*$") nil t)
    793 	  (goto-char (match-beginning 1))
    794 	  (delete-region (match-beginning 1) (match-end 1))
    795 	  (insert (md5 buffer-string))
    796 	  (save-buffer)))
    797       (kill-buffer buffer))))
    798 
    799 (defun org-mobile-apply (&optional beg end)
    800   "Apply all change requests in the current buffer.
    801 If BEG and END are given, only do this in that region."
    802   (interactive)
    803   (require 'org-archive)
    804   (setq org-mobile-last-flagged-files nil)
    805   (setq beg (or beg (point-min)) end (or end (point-max)))
    806 
    807   ;; Remove all Note IDs
    808   (goto-char beg)
    809   (while (re-search-forward "^\\*\\* Note ID: [-0-9A-F]+[ \t]*\n" end t)
    810     (replace-match ""))
    811 
    812   ;; Find all the referenced entries, without making any changes yet
    813   (let ((marker (make-marker))
    814 	(bos-marker (make-marker))
    815 	(end (move-marker (make-marker) end))
    816 	(cnt-new 0)
    817 	(cnt-edit 0)
    818 	(cnt-flag 0)
    819 	(cnt-error 0)
    820 	buf-list
    821 	org-mobile-error)
    822 
    823     ;; Count the new captures
    824     (goto-char beg)
    825     (while (re-search-forward "^\\* \\(.*\\)" end t)
    826       (and (>= (- (match-end 1) (match-beginning 1)) 2)
    827 	   (not (equal (downcase (substring (match-string 1) 0 2)) "f("))
    828 	   (cl-incf cnt-new)))
    829 
    830     ;; Find and apply the edits
    831     (goto-char beg)
    832     (while (re-search-forward
    833 	    "^\\*+[ \t]+F(\\([^():\n]*\\)\\(:\\([^()\n]*\\)\\)?)[ \t]+\\[\\[\\(\\(id\\|olp\\):\\([^]\n]+\\)\\)" end t)
    834       (catch 'next
    835 	(let* ((action (match-string 1))
    836 	       (data (and (match-end 3) (match-string 3)))
    837 	       (id-pos (condition-case msg
    838 			   (org-mobile-locate-entry (match-string 4))
    839 			 (error (nth 1 msg))))
    840 	       (bos (line-beginning-position))
    841 	       (eos (save-excursion (org-end-of-subtree t t)))
    842 	       (cmd (if (equal action "")
    843 			(let ((note (buffer-substring-no-properties
    844 				     (line-beginning-position 2) eos)))
    845 			  (lambda (_data _old _new)
    846 			    (cl-incf cnt-flag)
    847 			    (org-toggle-tag "FLAGGED" 'on)
    848 			    (org-entry-put
    849 			     nil "THEFLAGGINGNOTE"
    850 			     (replace-regexp-in-string "\n" "\\\\n" note))))
    851 		      (cl-incf cnt-edit)
    852 		      (cdr (assoc action org-mobile-action-alist))))
    853 	       ;; Do not take notes interactively.
    854 	       (org-inhibit-logging 'note)
    855 	       old new)
    856 
    857 	  (goto-char bos)
    858 	  (when (and (markerp id-pos)
    859 		     (not (member (marker-buffer id-pos) buf-list)))
    860 	    (org-mobile-timestamp-buffer (marker-buffer id-pos))
    861 	    (push (marker-buffer id-pos) buf-list))
    862 	  (unless (markerp id-pos)
    863             (goto-char (+ 2 (line-beginning-position)))
    864 	    (if (stringp id-pos)
    865 		(insert id-pos " ")
    866 	      (insert "BAD REFERENCE "))
    867 	    (cl-incf cnt-error)
    868 	    (throw 'next t))
    869 	  (unless cmd
    870 	    (insert "BAD FLAG ")
    871 	    (cl-incf cnt-error)
    872 	    (throw 'next t))
    873 	  (move-marker bos-marker (point))
    874 	  (if (re-search-forward "^\\** Old value[ \t]*$" eos t)
    875 	      (setq old (buffer-substring
    876 			 (1+ (match-end 0))
    877 			 (progn (outline-next-heading) (point)))))
    878 	  (if (re-search-forward "^\\** New value[ \t]*$" eos t)
    879 	      (setq new (buffer-substring
    880 			 (1+ (match-end 0))
    881 			 (progn (outline-next-heading)
    882 				(if (eobp) (org-back-over-empty-lines))
    883 				(point)))))
    884 	  (setq old (org-string-nw-p old))
    885 	  (setq new (org-string-nw-p new))
    886 	  (unless (equal data "body")
    887 	    (setq new (and new (org-trim new)))
    888 	    (setq old (and old (org-trim old))))
    889 	  (goto-char (+ 2 bos-marker))
    890 	  ;; Remember this place so that we can return
    891 	  (move-marker marker (point))
    892 	  (setq org-mobile-error nil)
    893 	  (condition-case msg
    894 	      (org-with-point-at id-pos
    895 		(funcall cmd data old new)
    896 		(unless (member data '("delete" "archive" "archive-sibling"
    897 				       "addheading"))
    898 		  (when (member "FLAGGED" (org-get-tags nil t))
    899 		    (add-to-list 'org-mobile-last-flagged-files
    900 				 (buffer-file-name)))))
    901 	    (error (setq org-mobile-error msg)))
    902 	  (when org-mobile-error
    903 	    (pop-to-buffer-same-window (marker-buffer marker))
    904 	    (goto-char marker)
    905 	    (cl-incf cnt-error)
    906 	    (insert (if (stringp (nth 1 org-mobile-error))
    907 			(nth 1 org-mobile-error)
    908 		      "EXECUTION FAILED")
    909 		    " ")
    910 	    (throw 'next t))
    911 	  ;; If we get here, the action has been applied successfully
    912 	  ;; So remove the entry
    913 	  (goto-char bos-marker)
    914 	  (delete-region (point) (org-end-of-subtree t t)))))
    915     (save-buffer)
    916     (move-marker marker nil)
    917     (move-marker end nil)
    918     (message "%d new, %d edits, %d flags, %d errors"
    919 	     cnt-new cnt-edit cnt-flag cnt-error)
    920     (sit-for 1)))
    921 
    922 (defun org-mobile-timestamp-buffer (buf)
    923   "Time stamp buffer BUF, just to make sure its checksum will change."
    924   (with-current-buffer buf
    925     (save-excursion
    926       (save-restriction
    927 	(widen)
    928 	(goto-char (point-min))
    929 	(if (re-search-forward
    930 	     "^\\([ \t]*\\)#\\+LAST_MOBILE_CHANGE:.*\n?" nil t)
    931 	    (progn
    932               (goto-char (match-end 1))
    933 	      (delete-region (point) (match-end 0)))
    934           (if (looking-at ".*?-\\*-.*-\\*-")
    935               (forward-line 1)))
    936 	(insert "#+LAST_MOBILE_CHANGE: "
    937 		(format-time-string "%Y-%m-%d %T") "\n")))))
    938 
    939 (defun org-mobile-smart-read ()
    940   "Parse the entry at point for shortcuts and expand them.
    941 These shortcuts are meant for fast and easy typing on the limited
    942 keyboards of a mobile device.  Below we show a list of the shortcuts
    943 currently implemented.
    944 
    945 The entry is expected to contain an inactive time stamp indicating when
    946 the entry was created.  When setting dates and
    947 times (for example for deadlines), the time strings are interpreted
    948 relative to that creation date.
    949 Abbreviations are expected to take up entire lines, just because it is so
    950 easy to type RET on a mobile device.  Abbreviations start with one or two
    951 letters, followed immediately by a dot and then additional information.
    952 Generally the entire shortcut line is removed after action have been taken.
    953 Time stamps will be constructed using `org-read-date'.  So for example a
    954 line \"dd. 2tue\" will set a deadline on the second Tuesday after the
    955 creation date.
    956 
    957 Here are the shortcuts currently implemented:
    958 
    959 dd. string             set deadline
    960 ss. string             set scheduling
    961 tt. string             set time tamp, here.
    962 ti. string             set inactive time
    963 
    964 tg. tag1 tag2 tag3     set all these tags, change case where necessary
    965 td. kwd                set this todo keyword, change case where necessary
    966 
    967 FIXME: Hmmm, not sure if we can make his work against the
    968 auto-correction feature.  Needs a bit more thinking.  So this function
    969 is currently a noop.")
    970 
    971 (defun org-mobile-locate-entry (link)
    972   (if (string-match "\\`id:\\(.*\\)$" link)
    973       (org-id-find (match-string 1 link) 'marker)
    974     (if (not (string-match "\\`olp:\\(.*?\\):\\(.*\\)$" link))
    975 					; not found with path, but maybe it is to be inserted
    976 					; in top level of the file?
    977 	(if (not (string-match "\\`olp:\\(.*?\\)$" link))
    978 	    nil
    979 	  (let ((file (match-string 1 link)))
    980 	    (setq file (org-link-decode file))
    981 	    (setq file (expand-file-name file org-directory))
    982 	    (save-excursion
    983 	      (find-file file)
    984 	      (goto-char (point-max))
    985 	      (newline)
    986 	      (goto-char (point-max))
    987 	      (point-marker))))
    988       (let ((file (match-string 1 link))
    989 	    (path (match-string 2 link)))
    990 	(setq file (org-link-decode file))
    991 	(setq file (expand-file-name file org-directory))
    992 	(setq path (mapcar #'org-link-decode
    993 			   (org-split-string path "/")))
    994 	(org-find-olp (cons file path))))))
    995 
    996 (defun org-mobile-edit (what old new)
    997   "Edit item WHAT in the current entry by replacing OLD with NEW.
    998 WHAT can be \"heading\", \"todo\", \"tags\", \"priority\", or \"body\".
    999 The edit only takes place if the current value is equal (except for
   1000 white space) the OLD.  If this is so, OLD will be replace by NEW
   1001 and the command will return t.  If something goes wrong, a string will
   1002 be returned that indicates what went wrong."
   1003   (let (current old1 new1 level)
   1004     (if (stringp what) (setq what (intern what)))
   1005 
   1006     (cond
   1007 
   1008      ((memq what '(todo todostate))
   1009       (setq current (org-get-todo-state))
   1010       (cond
   1011        ((equal new "DONEARCHIVE")
   1012 	(org-todo 'done)
   1013 	(org-archive-subtree-default))
   1014        ((equal new current) t)		; nothing needs to be done
   1015        ((or (equal current old)
   1016 	    (eq org-mobile-force-mobile-change t)
   1017 	    (memq 'todo org-mobile-force-mobile-change))
   1018 	(org-todo (or new 'none)) t)
   1019        (t (error "State before change was expected as \"%s\", but is \"%s\""
   1020 		 old current))))
   1021 
   1022      ((eq what 'tags)
   1023       (setq current (org-get-tags nil t)
   1024 	    new1 (and new (org-split-string new ":+"))
   1025 	    old1 (and old (org-split-string old ":+")))
   1026       (cond
   1027        ((org-mobile-tags-same-p current new1) t) ; no change needed
   1028        ((or (org-mobile-tags-same-p current old1)
   1029 	    (eq org-mobile-force-mobile-change t)
   1030 	    (memq 'tags org-mobile-force-mobile-change))
   1031 	(org-set-tags new1) t)
   1032        (t (error "Tags before change were expected as \"%s\", but are \"%s\""
   1033 		 (or old "") (or current "")))))
   1034 
   1035      ((eq what 'priority)
   1036       (let ((case-fold-search nil))
   1037 	(when (looking-at org-complex-heading-regexp)
   1038 	  (let ((current (and (match-end 3) (substring (match-string 3) 2 3))))
   1039 	    (cond
   1040 	     ((equal current new) t)	;no action required
   1041 	     ((or (equal current old)
   1042 		  (eq org-mobile-force-mobile-change t)
   1043 		  (memq 'tags org-mobile-force-mobile-change))
   1044 	      (org-priority (and new (string-to-char new))))
   1045 	     (t (error "Priority was expected to be %s, but is %s"
   1046 		       old current)))))))
   1047 
   1048      ((eq what 'heading)
   1049       (let ((case-fold-search nil))
   1050 	(when (looking-at org-complex-heading-regexp)
   1051 	  (let ((current (match-string 4)))
   1052 	    (cond
   1053 	     ((equal current new) t)	;no action required
   1054 	     ((or (equal current old)
   1055 		  (eq org-mobile-force-mobile-change t)
   1056 		  (memq 'heading org-mobile-force-mobile-change))
   1057 	      (goto-char (match-beginning 4))
   1058 	      (insert new)
   1059 	      (delete-region (point) (+ (point) (length current)))
   1060 	      (when org-auto-align-tags (org-align-tags)))
   1061 	     (t
   1062 	      (error
   1063 	       "Heading changed in the mobile device and on the computer")))))))
   1064 
   1065      ((eq what 'addheading)
   1066       (if (org-at-heading-p)	; if false we are in top-level of file
   1067 	  (progn
   1068 	    ;; Workaround a `org-insert-heading-respect-content' bug
   1069 	    ;; which prevents correct insertion when point is invisible
   1070 	    (org-fold-show-subtree)
   1071 	    (end-of-line 1)
   1072 	    (org-insert-heading-respect-content t)
   1073 	    (org-demote))
   1074 	(forward-line 0)
   1075 	(insert "* "))
   1076       (insert new))
   1077 
   1078      ((eq what 'refile)
   1079       (org-copy-subtree)
   1080       (org-with-point-at (org-mobile-locate-entry new)
   1081 	(if (org-at-heading-p)	; if false we are in top-level of file
   1082 	    (progn
   1083 	      (setq level (org-get-valid-level (funcall outline-level) 1))
   1084 	      (org-end-of-subtree t t)
   1085 	      (org-paste-subtree level))
   1086 	  (org-paste-subtree 1)))
   1087       (org-cut-subtree))
   1088 
   1089      ((eq what 'delete)
   1090       (org-cut-subtree))
   1091 
   1092      ((eq what 'archive)
   1093       (org-archive-subtree))
   1094 
   1095      ((eq what 'archive-sibling)
   1096       (org-archive-to-archive-sibling))
   1097 
   1098      ((eq what 'body)
   1099       (setq current (buffer-substring (min (1+ (line-end-position)) (point-max))
   1100 				      (save-excursion (outline-next-heading)
   1101 						      (point))))
   1102       (if (not (string-match "\\S-" current)) (setq current nil))
   1103       (cond
   1104        ((org-mobile-bodies-same-p current new) t) ; no action necessary
   1105        ((or (org-mobile-bodies-same-p current old)
   1106 	    (eq org-mobile-force-mobile-change t)
   1107 	    (memq 'body org-mobile-force-mobile-change))
   1108 	(save-excursion
   1109 	  (end-of-line 1)
   1110 	  (insert "\n" new)
   1111 	  (or (bolp) (insert "\n"))
   1112 	  (delete-region (point) (progn (org-back-to-heading t)
   1113 					(outline-next-heading)
   1114 					(point))))
   1115 	t)
   1116        (t (error
   1117 	   "Body was changed in the mobile device and on the computer")))))))
   1118 
   1119 (defun org-mobile-tags-same-p (list1 list2)
   1120   "Are the two tag lists the same?"
   1121   (not (or (org-delete-all list1 list2)
   1122 	   (org-delete-all list2 list1))))
   1123 
   1124 (defun org-mobile-bodies-same-p (a b)
   1125   "Compare if A and B are visually equal strings.
   1126 We first remove leading and trailing white space from the entire strings.
   1127 Then we split the strings into lines and remove leading/trailing whitespace
   1128 from each line.  Then we compare.
   1129 A and B must be strings or nil."
   1130   (cond
   1131    ((and (not a) (not b)) t)
   1132    ((or (not a) (not b)) nil)
   1133    (t (setq a (org-trim a) b (org-trim b))
   1134       (setq a (mapconcat 'identity (org-split-string a "[ \t]*\n[ \t]*") "\n"))
   1135       (setq b (mapconcat 'identity (org-split-string b "[ \t]*\n[ \t]*") "\n"))
   1136       (equal a b))))
   1137 
   1138 (provide 'org-mobile)
   1139 
   1140 ;; Local variables:
   1141 ;; generated-autoload-file: "org-loaddefs.el"
   1142 ;; End:
   1143 
   1144 ;;; org-mobile.el ends here