lisp/net/tramp-gvfs.el

   1 ;;; tramp-gvfs.el --- Tramp access functions for GVFS daemon
   2
   3 ;; Copyright (C) 2009-2012 Free Software Foundation, Inc.
   4
   5 ;; Author: Michael Albinus <michael.albinus@gmx.de>
   6 ;; Keywords: comm, processes
   7 ;; Package: tramp
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software: you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation, either version 3 of the License, or
  14 ;; (at your option) any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 ;;; Commentary:
  25
  26 ;; Access functions for the GVFS daemon from Tramp.  Tested with GVFS
  27 ;; 1.0.2 (Ubuntu 8.10, Gnome 2.24).  It has been reported also to run
  28 ;; with GVFS 0.2.5 (Ubuntu 8.04, Gnome 2.22), but there is an
  29 ;; incompatibility with the mount_info structure, which has been
  30 ;; worked around.
  31
  32 ;; It has also been tested with GVFS 1.6.2 (Ubuntu 10.04, Gnome 2.30),
  33 ;; where the default_location has been added to mount_info (see
  34 ;; <https://bugzilla.gnome.org/show_bug.cgi?id=561998>.
  35
  36 ;; All actions to mount a remote location, and to retrieve mount
  37 ;; information, are performed by D-Bus messages.  File operations
  38 ;; themselves are performed via the mounted filesystem in ~/.gvfs.
  39 ;; Consequently, GNU Emacs 23.1 with enabled D-Bus bindings is a
  40 ;; precondition.
  41
  42 ;; The GVFS D-Bus interface is said to be unstable.  There are even no
  43 ;; introspection data.  The interface, as discovered during
  44 ;; development time, is given in respective comments.
  45
  46 ;; The customer option `tramp-gvfs-methods' contains the list of
  47 ;; supported connection methods.  Per default, these are "dav",
  48 ;; "davs", "obex" and "synce".  Note that with "obex" it might be
  49 ;; necessary to pair with the other bluetooth device, if it hasn't
  50 ;; been done already.  There might be also some few seconds delay in
  51 ;; discovering available bluetooth devices.
  52
  53 ;; Other possible connection methods are "ftp", "sftp" and "smb".
  54 ;; When one of these methods is added to the list, the remote access
  55 ;; for that method is performed via GVFS instead of the native Tramp
  56 ;; implementation.
  57
  58 ;; GVFS offers even more connection methods.  The complete list of
  59 ;; connection methods of the actual GVFS implementation can be
  60 ;; retrieved by:
  61 ;;
  62 ;; (message
  63 ;;  "%s"
  64 ;;  (mapcar
  65 ;;   'car
  66 ;;   (dbus-call-method
  67 ;;    :session tramp-gvfs-service-daemon tramp-gvfs-path-mounttracker
  68 ;;    tramp-gvfs-interface-mounttracker "listMountableInfo")))
  69
  70 ;; Note that all other connection methods are not tested, beside the
  71 ;; ones offered for customization in `tramp-gvfs-methods'.  If you
  72 ;; request an additional connection method to be supported, please
  73 ;; drop me a note.
  74
  75 ;; For hostname completion, information is retrieved either from the
  76 ;; bluez daemon (for the "obex" method), the hal daemon (for the
  77 ;; "synce" method), or from the zeroconf daemon (for the "dav",
  78 ;; "davs", and "sftp" methods).  The zeroconf daemon is pre-configured
  79 ;; to discover services in the "local" domain.  If another domain
  80 ;; shall be used for discovering services, the customer option
  81 ;; `tramp-gvfs-zeroconf-domain' can be set accordingly.
  82
  83 ;; Restrictions:
  84
  85 ;; * The current GVFS implementation does not allow to write on the
  86 ;;   remote bluetooth device via OBEX.
  87 ;;
  88 ;; * Two shares of the same SMB server cannot be mounted in parallel.
  89
  90 ;;; Code:
  91
  92 ;; D-Bus support in the Emacs core can be disabled with configuration
  93 ;; option "--without-dbus".  Declare used subroutines and variables.
  94 (declare-function dbus-call-method "dbusbind.c")
  95 (declare-function dbus-call-method-asynchronously "dbusbind.c")
  96 (declare-function dbus-get-unique-name "dbusbind.c")
  97 (declare-function dbus-register-method "dbusbind.c")
  98 (declare-function dbus-register-signal "dbusbind.c")
  99
 100 ;; Pacify byte-compiler
 101 (eval-when-compile
 102   (require 'cl)
 103   (require 'custom))
 104
 105 (require 'tramp)
 106
 107 (require 'dbus)
 108 (require 'url-parse)
 109 (require 'url-util)
 110 (require 'zeroconf)
 111
 112 ;;;###tramp-autoload
 113 (defcustom tramp-gvfs-methods '("dav" "davs" "obex" "synce")
 114   "*List of methods for remote files, accessed with GVFS."
 115   :group 'tramp
 116   :version "23.2"
 117   :type '(repeat (choice (const "dav")
 118                          (const "davs")
 119                          (const "ftp")
 120                          (const "obex")
 121                          (const "sftp")
 122                          (const "smb")
 123                          (const "synce"))))
 124
 125 ;; Add a default for `tramp-default-user-alist'.  Rule: For the SYNCE
 126 ;; method, no user is chosen.
 127 ;;;###tramp-autoload
 128 (add-to-list 'tramp-default-user-alist '("\\`synce\\'" nil nil))
 129
 130 (defcustom tramp-gvfs-zeroconf-domain "local"
 131   "*Zeroconf domain to be used for discovering services, like host names."
 132   :group 'tramp
 133   :version "23.2"
 134   :type 'string)
 135
 136 ;; Add the methods to `tramp-methods', in order to allow minibuffer
 137 ;; completion.
 138 ;;;###tramp-autoload
 139 (when (featurep 'dbusbind)
 140   (dolist (elt tramp-gvfs-methods)
 141     (unless (assoc elt tramp-methods)
 142       (add-to-list 'tramp-methods (cons elt nil)))))
 143
 144 (defconst tramp-gvfs-path-tramp (concat dbus-path-emacs "/Tramp")
 145   "The preceding object path for own objects.")
 146
 147 (defconst tramp-gvfs-service-daemon "org.gtk.vfs.Daemon"
 148   "The well known name of the GVFS daemon.")
 149
 150 ;; Check that GVFS is available.  D-Bus integration is available since
 151 ;; Emacs 23 on some system types.  We don't call `dbus-ping', because
 152 ;; this would load dbus.el.
 153 (unless (and (tramp-compat-funcall 'dbus-get-unique-name :session)
 154              (tramp-compat-process-running-p "gvfs-fuse-daemon"))
 155   (error "Package `tramp-gvfs' not supported"))
 156
 157 (defconst tramp-gvfs-path-mounttracker "/org/gtk/vfs/mounttracker"
 158   "The object path of the GVFS daemon.")
 159
 160 (defconst tramp-gvfs-interface-mounttracker "org.gtk.vfs.MountTracker"
 161   "The mount tracking interface in the GVFS daemon.")
 162
 163 ;; <interface name='org.gtk.vfs.MountTracker'>
 164 ;;   <method name='listMounts'>
 165 ;;     <arg name='mount_info_list'
 166 ;;          type='a{sosssssbay{aya{say}}ay}'
 167 ;;          direction='out'/>
 168 ;;   </method>
 169 ;;   <method name='mountLocation'>
 170 ;;     <arg name='mount_spec'  type='{aya{say}}' direction='in'/>
 171 ;;     <arg name='dbus_id'     type='s'          direction='in'/>
 172 ;;     <arg name='object_path' type='o'          direction='in'/>
 173 ;;   </method>
 174 ;;   <signal name='mounted'>
 175 ;;     <arg name='mount_info'
 176 ;;          type='{sosssssbay{aya{say}}ay}'/>
 177 ;;   </signal>
 178 ;;   <signal name='unmounted'>
 179 ;;     <arg name='mount_info'
 180 ;;          type='{sosssssbay{aya{say}}ay}'/>
 181 ;;   </signal>
 182 ;; </interface>
 183 ;;
 184 ;; STRUCT               mount_info
 185 ;;   STRING               dbus_id
 186 ;;   OBJECT_PATH          object_path
 187 ;;   STRING               display_name
 188 ;;   STRING               stable_name
 189 ;;   STRING               x_content_types       Since GVFS 1.0 only !!!
 190 ;;   STRING               icon
 191 ;;   STRING               preferred_filename_encoding
 192 ;;   BOOLEAN              user_visible
 193 ;;   ARRAY BYTE           fuse_mountpoint
 194 ;;   STRUCT               mount_spec
 195 ;;     ARRAY BYTE           mount_prefix
 196 ;;     ARRAY
 197 ;;       STRUCT             mount_spec_item
 198 ;;         STRING             key (server, share, type, user, host, port)
 199 ;;         ARRAY BYTE         value
 200 ;;   ARRAY BYTE           default_location      Since GVFS 1.5 only !!!
 201
 202 (defconst tramp-gvfs-interface-mountoperation "org.gtk.vfs.MountOperation"
 203   "Used by the dbus-proxying implementation of GMountOperation.")
 204
 205 ;; <interface name='org.gtk.vfs.MountOperation'>
 206 ;;   <method name='askPassword'>
 207 ;;     <arg name='message'        type='s' direction='in'/>
 208 ;;     <arg name='default_user'   type='s' direction='in'/>
 209 ;;     <arg name='default_domain' type='s' direction='in'/>
 210 ;;     <arg name='flags'          type='u' direction='in'/>
 211 ;;     <arg name='handled'        type='b' direction='out'/>
 212 ;;     <arg name='aborted'        type='b' direction='out'/>
 213 ;;     <arg name='password'       type='s' direction='out'/>
 214 ;;     <arg name='username'       type='s' direction='out'/>
 215 ;;     <arg name='domain'         type='s' direction='out'/>
 216 ;;     <arg name='anonymous'      type='b' direction='out'/>
 217 ;;     <arg name='password_save'  type='u' direction='out'/>
 218 ;;   </method>
 219 ;;   <method name='askQuestion'>
 220 ;;     <arg name='message' type='s'  direction='in'/>
 221 ;;     <arg name='choices' type='as' direction='in'/>
 222 ;;     <arg name='handled' type='b'  direction='out'/>
 223 ;;     <arg name='aborted' type='b'  direction='out'/>
 224 ;;     <arg name='choice'  type='u'  direction='out'/>
 225 ;;   </method>
 226 ;; </interface>
 227
 228 ;; The following flags are used in "askPassword".  They are defined in
 229 ;; /usr/include/glib-2.0/gio/gioenums.h.
 230
 231 (defconst tramp-gvfs-password-need-password 1
 232   "Operation requires a password.")
 233
 234 (defconst tramp-gvfs-password-need-username 2
 235   "Operation requires a username.")
 236
 237 (defconst tramp-gvfs-password-need-domain 4
 238   "Operation requires a domain.")
 239
 240 (defconst tramp-gvfs-password-saving-supported 8
 241   "Operation supports saving settings.")
 242
 243 (defconst tramp-gvfs-password-anonymous-supported 16
 244   "Operation supports anonymous users.")
 245
 246 (defconst tramp-bluez-service "org.bluez"
 247   "The well known name of the BLUEZ service.")
 248
 249 (defconst tramp-bluez-interface-manager "org.bluez.Manager"
 250   "The manager interface of the BLUEZ daemon.")
 251
 252 ;; <interface name='org.bluez.Manager'>
 253 ;;   <method name='DefaultAdapter'>
 254 ;;     <arg type='o' direction='out'/>
 255 ;;   </method>
 256 ;;   <method name='FindAdapter'>
 257 ;;     <arg type='s' direction='in'/>
 258 ;;     <arg type='o' direction='out'/>
 259 ;;   </method>
 260 ;;   <method name='ListAdapters'>
 261 ;;     <arg type='ao' direction='out'/>
 262 ;;   </method>
 263 ;;   <signal name='AdapterAdded'>
 264 ;;     <arg type='o'/>
 265 ;;   </signal>
 266 ;;   <signal name='AdapterRemoved'>
 267 ;;     <arg type='o'/>
 268 ;;   </signal>
 269 ;;   <signal name='DefaultAdapterChanged'>
 270 ;;     <arg type='o'/>
 271 ;;   </signal>
 272 ;; </interface>
 273
 274 (defconst tramp-bluez-interface-adapter "org.bluez.Adapter"
 275   "The adapter interface of the BLUEZ daemon.")
 276
 277 ;; <interface name='org.bluez.Adapter'>
 278 ;;   <method name='GetProperties'>
 279 ;;     <arg type='a{sv}' direction='out'/>
 280 ;;   </method>
 281 ;;   <method name='SetProperty'>
 282 ;;     <arg type='s' direction='in'/>
 283 ;;     <arg type='v' direction='in'/>
 284 ;;   </method>
 285 ;;   <method name='RequestMode'>
 286 ;;     <arg type='s' direction='in'/>
 287 ;;   </method>
 288 ;;   <method name='ReleaseMode'/>
 289 ;;   <method name='RequestSession'/>
 290 ;;   <method name='ReleaseSession'/>
 291 ;;   <method name='StartDiscovery'/>
 292 ;;   <method name='StopDiscovery'/>
 293 ;;   <method name='ListDevices'>
 294 ;;     <arg type='ao' direction='out'/>
 295 ;;   </method>
 296 ;;   <method name='CreateDevice'>
 297 ;;     <arg type='s' direction='in'/>
 298 ;;     <arg type='o' direction='out'/>
 299 ;;   </method>
 300 ;;   <method name='CreatePairedDevice'>
 301 ;;     <arg type='s' direction='in'/>
 302 ;;     <arg type='o' direction='in'/>
 303 ;;     <arg type='s' direction='in'/>
 304 ;;     <arg type='o' direction='out'/>
 305 ;;   </method>
 306 ;;   <method name='CancelDeviceCreation'>
 307 ;;     <arg type='s' direction='in'/>
 308 ;;   </method>
 309 ;;   <method name='RemoveDevice'>
 310 ;;     <arg type='o' direction='in'/>
 311 ;;   </method>
 312 ;;   <method name='FindDevice'>
 313 ;;     <arg type='s' direction='in'/>
 314 ;;     <arg type='o' direction='out'/>
 315 ;;   </method>
 316 ;;   <method name='RegisterAgent'>
 317 ;;     <arg type='o' direction='in'/>
 318 ;;     <arg type='s' direction='in'/>
 319 ;;   </method>
 320 ;;   <method name='UnregisterAgent'>
 321 ;;     <arg type='o' direction='in'/>
 322 ;;   </method>
 323 ;;   <signal name='DeviceCreated'>
 324 ;;     <arg type='o'/>
 325 ;;   </signal>
 326 ;;   <signal name='DeviceRemoved'>
 327 ;;     <arg type='o'/>
 328 ;;   </signal>
 329 ;;   <signal name='DeviceFound'>
 330 ;;     <arg type='s'/>
 331 ;;     <arg type='a{sv}'/>
 332 ;;   </signal>
 333 ;;   <signal name='PropertyChanged'>
 334 ;;     <arg type='s'/>
 335 ;;     <arg type='v'/>
 336 ;;   </signal>
 337 ;;   <signal name='DeviceDisappeared'>
 338 ;;     <arg type='s'/>
 339 ;;   </signal>
 340 ;; </interface>
 341
 342 (defcustom tramp-bluez-discover-devices-timeout 60
 343   "Defines seconds since last bluetooth device discovery before rescanning.
 344 A value of 0 would require an immediate discovery during hostname
 345 completion, nil means to use always cached values for discovered
 346 devices."
 347   :group 'tramp
 348   :version "23.2"
 349   :type '(choice (const nil) integer))
 350
 351 (defvar tramp-bluez-discovery nil
 352   "Indicator for a running bluetooth device discovery.
 353 It keeps the timestamp of last discovery.")
 354
 355 (defvar tramp-bluez-devices nil
 356   "Alist of detected bluetooth devices.
 357 Every entry is a list (NAME ADDRESS).")
 358
 359 (defconst tramp-hal-service "org.freedesktop.Hal"
 360   "The well known name of the HAL service.")
 361
 362 (defconst tramp-hal-path-manager "/org/freedesktop/Hal/Manager"
 363   "The object path of the HAL daemon manager.")
 364
 365 (defconst tramp-hal-interface-manager "org.freedesktop.Hal.Manager"
 366   "The manager interface of the HAL daemon.")
 367
 368 (defconst tramp-hal-interface-device "org.freedesktop.Hal.Device"
 369   "The device interface of the HAL daemon.")
 370
 371 \f
 372 ;; New handlers should be added here.
 373 (defconst tramp-gvfs-file-name-handler-alist
 374   '(
 375     (access-file . ignore)
 376     (add-name-to-file . tramp-gvfs-handle-copy-file)
 377     ;; `byte-compiler-base-file-name' performed by default handler.
 378     (copy-file . tramp-gvfs-handle-copy-file)
 379     (delete-directory . tramp-gvfs-handle-delete-directory)
 380     (delete-file . tramp-gvfs-handle-delete-file)
 381     ;; `diff-latest-backup-file' performed by default handler.
 382     (directory-file-name . tramp-handle-directory-file-name)
 383     (directory-files . tramp-gvfs-handle-directory-files)
 384     (directory-files-and-attributes
 385      . tramp-gvfs-handle-directory-files-and-attributes)
 386     (dired-call-process . ignore)
 387     (dired-compress-file . ignore)
 388     (dired-uncache . tramp-handle-dired-uncache)
 389     ;; `executable-find' is not official yet. performed by default handler.
 390     (expand-file-name . tramp-gvfs-handle-expand-file-name)
 391     ;; `file-accessible-directory-p' performed by default handler.
 392     (file-attributes . tramp-gvfs-handle-file-attributes)
 393     (file-directory-p . tramp-gvfs-handle-file-directory-p)
 394     (file-executable-p . tramp-gvfs-handle-file-executable-p)
 395     (file-exists-p . tramp-gvfs-handle-file-exists-p)
 396     (file-local-copy . tramp-gvfs-handle-file-local-copy)
 397     ;; `file-modes' performed by default handler.
 398     (file-name-all-completions . tramp-gvfs-handle-file-name-all-completions)
 399     (file-name-as-directory . tramp-handle-file-name-as-directory)
 400     (file-name-completion . tramp-handle-file-name-completion)
 401     (file-name-directory . tramp-handle-file-name-directory)
 402     (file-name-nondirectory . tramp-handle-file-name-nondirectory)
 403     ;; `file-name-sans-versions' performed by default handler.
 404     (file-newer-than-file-p . tramp-handle-file-newer-than-file-p)
 405     (file-ownership-preserved-p . ignore)
 406     (file-readable-p . tramp-gvfs-handle-file-readable-p)
 407     (file-regular-p . tramp-handle-file-regular-p)
 408     (file-remote-p . tramp-handle-file-remote-p)
 409     (file-selinux-context . tramp-gvfs-handle-file-selinux-context)
 410     (file-symlink-p . tramp-handle-file-symlink-p)
 411     ;; `file-truename' performed by default handler.
 412     (file-writable-p . tramp-gvfs-handle-file-writable-p)
 413     (find-backup-file-name . tramp-handle-find-backup-file-name)
 414     ;; `find-file-noselect' performed by default handler.
 415     ;; `get-file-buffer' performed by default handler.
 416     (insert-directory . tramp-gvfs-handle-insert-directory)
 417     (insert-file-contents . tramp-gvfs-handle-insert-file-contents)
 418     (load . tramp-handle-load)
 419     (make-directory . tramp-gvfs-handle-make-directory)
 420     (make-directory-internal . ignore)
 421     (make-symbolic-link . ignore)
 422     (process-file . tramp-gvfs-handle-process-file)
 423     (rename-file . tramp-gvfs-handle-rename-file)
 424     (set-file-modes . tramp-gvfs-handle-set-file-modes)
 425     (set-file-selinux-context . tramp-gvfs-handle-set-file-selinux-context)
 426     (set-visited-file-modtime . tramp-gvfs-handle-set-visited-file-modtime)
 427     (shell-command . tramp-gvfs-handle-shell-command)
 428     (start-file-process . tramp-gvfs-handle-start-file-process)
 429     (substitute-in-file-name . tramp-handle-substitute-in-file-name)
 430     (unhandled-file-name-directory . tramp-handle-unhandled-file-name-directory)
 431     (vc-registered . ignore)
 432     (verify-visited-file-modtime
 433      . tramp-gvfs-handle-verify-visited-file-modtime)
 434     (write-region . tramp-gvfs-handle-write-region)
 435 )
 436   "Alist of handler functions for Tramp GVFS method.
 437 Operations not mentioned here will be handled by the default Emacs primitives.")
 438
 439 ;;;###tramp-autoload
 440 (defsubst tramp-gvfs-file-name-p (filename)
 441   "Check if it's a filename handled by the GVFS daemon."
 442   (and (tramp-tramp-file-p filename)
 443        (let ((method
 444               (tramp-file-name-method (tramp-dissect-file-name filename))))
 445          (and (stringp method) (member method tramp-gvfs-methods)))))
 446
 447 ;;;###tramp-autoload
 448 (defun tramp-gvfs-file-name-handler (operation &rest args)
 449   "Invoke the GVFS related OPERATION.
 450 First arg specifies the OPERATION, second arg is a list of arguments to
 451 pass to the OPERATION."
 452   (let ((fn (assoc operation tramp-gvfs-file-name-handler-alist)))
 453     (if fn
 454         (save-match-data (apply (cdr fn) args))
 455       (tramp-run-real-handler operation args))))
 456
 457 ;; This might be moved to tramp.el.  It shall be the first file name
 458 ;; handler.
 459 ;;;###tramp-autoload
 460 (when (featurep 'dbusbind)
 461   (add-to-list 'tramp-foreign-file-name-handler-alist
 462                (cons 'tramp-gvfs-file-name-p 'tramp-gvfs-file-name-handler)))
 463
 464 (defun tramp-gvfs-stringify-dbus-message (message)
 465   "Convert a D-Bus message into readable UTF8 strings, used for traces."
 466   (cond
 467    ((and (consp message) (characterp (car message)))
 468     (format "%S" (dbus-byte-array-to-string message)))
 469    ((consp message)
 470     (mapcar 'tramp-gvfs-stringify-dbus-message message))
 471    ((stringp message)
 472     (format "%S" message))
 473    (t message)))
 474
 475 (defmacro with-tramp-dbus-call-method
 476   (vec synchronous bus service path interface method &rest args)
 477   "Apply a D-Bus call on bus BUS.
 478
 479 If SYNCHRONOUS is non-nil, the call is synchronously.  Otherwise,
 480 it is an asynchronous call, with `ignore' as callback function.
 481
 482 The other arguments have the same meaning as with `dbus-call-method'
 483 or `dbus-call-method-asynchronously'.  Additionally, the call
 484 will be traced by Tramp with trace level 6."
 485   `(let ((func (if ,synchronous
 486                    'dbus-call-method 'dbus-call-method-asynchronously))
 487          (args (append (list ,bus ,service ,path ,interface ,method)
 488                        (if ,synchronous (list ,@args) (list 'ignore ,@args))))
 489          result)
 490      (tramp-message ,vec 6 "%s %s" func args)
 491      (setq result (apply func args))
 492      (tramp-message ,vec 6 "%s" (tramp-gvfs-stringify-dbus-message result))
 493      result))
 494
 495 (put 'with-tramp-dbus-call-method 'lisp-indent-function 2)
 496 (put 'with-tramp-dbus-call-method 'edebug-form-spec '(form symbolp body))
 497 (tramp-compat-font-lock-add-keywords
 498  'emacs-lisp-mode '("\\<with-tramp-dbus-call-method\\>"))
 499
 500 (defmacro with-tramp-gvfs-error-message (filename handler &rest args)
 501   "Apply a Tramp GVFS `handler'.
 502 In case of an error, modify the error message by replacing
 503 `filename' with its GVFS mounted name."
 504   `(let ((fuse-file-name  (regexp-quote (tramp-gvfs-fuse-file-name ,filename)))
 505          elt)
 506      (condition-case err
 507          (tramp-compat-funcall ,handler ,@args)
 508        (error
 509         (setq elt (cdr err))
 510         (while elt
 511           (when (and (stringp (car elt))
 512                      (string-match fuse-file-name (car elt)))
 513             (setcar elt (replace-match ,filename t t (car elt))))
 514           (setq elt (cdr elt)))
 515         (signal (car err) (cdr err))))))
 516
 517 (put 'with-tramp-gvfs-error-message 'lisp-indent-function 2)
 518 (put 'with-tramp-gvfs-error-message 'edebug-form-spec '(form symbolp body))
 519 (tramp-compat-font-lock-add-keywords
 520  'emacs-lisp-mode '("\\<with-tramp-gvfs-error-message\\>"))
 521
 522 (defvar tramp-gvfs-dbus-event-vector nil
 523   "Current Tramp file name to be used, as vector.
 524 It is needed when D-Bus signals or errors arrive, because there
 525 is no information where to trace the message.")
 526
 527 (defun tramp-gvfs-dbus-event-error (event err)
 528   "Called when a D-Bus error message arrives, see `dbus-event-error-hooks'."
 529   (when tramp-gvfs-dbus-event-vector
 530     (tramp-message tramp-gvfs-dbus-event-vector 10 "%S" event)
 531     (tramp-error tramp-gvfs-dbus-event-vector 'file-error "%s" (cadr err))))
 532
 533 (add-hook 'dbus-event-error-hooks 'tramp-gvfs-dbus-event-error)
 534
 535 \f
 536 ;; File name primitives.
 537
 538 (defun tramp-gvfs-handle-copy-file
 539   (filename newname &optional ok-if-already-exists keep-date
 540             preserve-uid-gid preserve-selinux-context)
 541   "Like `copy-file' for Tramp files."
 542   (with-parsed-tramp-file-name
 543       (if (tramp-tramp-file-p filename) filename newname) nil
 544     (tramp-with-progress-reporter
 545         v 0 (format "Copying %s to %s" filename newname)
 546       (condition-case err
 547           (let ((args
 548                  (list
 549                   (if (tramp-gvfs-file-name-p filename)
 550                       (tramp-gvfs-fuse-file-name filename)
 551                     filename)
 552                   (if (tramp-gvfs-file-name-p newname)
 553                       (tramp-gvfs-fuse-file-name newname)
 554                     newname)
 555                   ok-if-already-exists keep-date preserve-uid-gid)))
 556             (when preserve-selinux-context
 557               (setq args (append args (list preserve-selinux-context))))
 558             (apply 'copy-file args))
 559
 560         ;; Error case.  Let's try it with the GVFS utilities.
 561         (error
 562          (tramp-message v 4 "`copy-file' failed, trying `gvfs-copy'")
 563          (unless
 564              (zerop
 565               (let ((args
 566                      (append (if (or keep-date preserve-uid-gid)
 567                                  (list "--preserve")
 568                                nil)
 569                              (list
 570                               (tramp-gvfs-url-file-name filename)
 571                               (tramp-gvfs-url-file-name newname)))))
 572                 (apply 'tramp-gvfs-send-command v "gvfs-copy" args)))
 573            ;; Propagate the error.
 574            (tramp-error v (car err) "%s" (cdr err)))))))
 575
 576   (when (file-remote-p newname)
 577     (with-parsed-tramp-file-name newname nil
 578       (tramp-flush-file-property v (file-name-directory localname))
 579       (tramp-flush-file-property v localname))))
 580
 581 (defun tramp-gvfs-handle-delete-directory (directory &optional recursive)
 582   "Like `delete-directory' for Tramp files."
 583   (tramp-compat-delete-directory
 584    (tramp-gvfs-fuse-file-name directory) recursive))
 585
 586 (defun tramp-gvfs-handle-delete-file (filename &optional trash)
 587   "Like `delete-file' for Tramp files."
 588   (tramp-compat-delete-file (tramp-gvfs-fuse-file-name filename) trash))
 589
 590 (defun tramp-gvfs-handle-directory-files
 591   (directory &optional full match nosort)
 592   "Like `directory-files' for Tramp files."
 593   (let ((fuse-file-name (tramp-gvfs-fuse-file-name directory)))
 594     (mapcar
 595      (lambda (x)
 596        (if (string-match fuse-file-name x)
 597            (replace-match directory t t x)
 598          x))
 599      (directory-files fuse-file-name full match nosort))))
 600
 601 (defun tramp-gvfs-handle-directory-files-and-attributes
 602   (directory &optional full match nosort id-format)
 603   "Like `directory-files-and-attributes' for Tramp files."
 604   (let ((fuse-file-name (tramp-gvfs-fuse-file-name directory)))
 605     (mapcar
 606      (lambda (x)
 607        (when (string-match fuse-file-name (car x))
 608          (setcar x (replace-match directory t t (car x))))
 609        x)
 610      (directory-files-and-attributes
 611       fuse-file-name full match nosort id-format))))
 612
 613 (defun tramp-gvfs-handle-expand-file-name (name &optional dir)
 614   "Like `expand-file-name' for Tramp files."
 615   ;; If DIR is not given, use DEFAULT-DIRECTORY or "/".
 616   (setq dir (or dir default-directory "/"))
 617   ;; Unless NAME is absolute, concat DIR and NAME.
 618   (unless (file-name-absolute-p name)
 619     (setq name (concat (file-name-as-directory dir) name)))
 620   ;; If NAME is not a Tramp file, run the real handler.
 621   (if (not (tramp-tramp-file-p name))
 622       (tramp-run-real-handler 'expand-file-name (list name nil))
 623     ;; Dissect NAME.
 624     (with-parsed-tramp-file-name name nil
 625       ;; If there is a default location, expand tilde.
 626       (when (string-match "\\`\\(~\\)\\(/\\|\\'\\)" localname)
 627         (save-match-data
 628           (tramp-gvfs-maybe-open-connection (vector method user host "/")))
 629         (setq localname
 630               (replace-match
 631                (tramp-get-file-property  v "/" "default-location" "~")
 632                nil t localname 1)))
 633       ;; Tilde expansion is not possible.
 634       (when (string-match "\\`\\(~[^/]*\\)\\(.*\\)\\'" localname)
 635         (tramp-error
 636          v 'file-error
 637          "Cannot expand tilde in file `%s'" name))
 638       (unless (tramp-run-real-handler 'file-name-absolute-p (list localname))
 639         (setq localname (concat "/" localname)))
 640       ;; We do not pass "/..".
 641       (if (string-equal "smb" method)
 642           (when (string-match "^/[^/]+\\(/\\.\\./?\\)" localname)
 643             (setq localname (replace-match "/" t t localname 1)))
 644         (when (string-match "^/\\.\\./?" localname)
 645           (setq localname (replace-match "/" t t localname))))
 646       ;; There might be a double slash.  Remove this.
 647       (while (string-match "//" localname)
 648         (setq localname (replace-match "/" t t localname)))
 649       ;; No tilde characters in file name, do normal
 650       ;; `expand-file-name' (this does "/./" and "/../").
 651       (tramp-make-tramp-file-name
 652        method user host
 653        (tramp-run-real-handler
 654         'expand-file-name (list localname))))))
 655
 656 (defun tramp-gvfs-handle-file-attributes (filename &optional id-format)
 657   "Like `file-attributes' for Tramp files."
 658   (file-attributes (tramp-gvfs-fuse-file-name filename) id-format))
 659
 660 (defun tramp-gvfs-handle-file-directory-p (filename)
 661   "Like `file-directory-p' for Tramp files."
 662   (file-directory-p (tramp-gvfs-fuse-file-name filename)))
 663
 664 (defun tramp-gvfs-handle-file-executable-p (filename)
 665   "Like `file-executable-p' for Tramp files."
 666   (file-executable-p (tramp-gvfs-fuse-file-name filename)))
 667
 668 (defun tramp-gvfs-handle-file-exists-p (filename)
 669   "Like `file-exists-p' for Tramp files."
 670   (file-exists-p (tramp-gvfs-fuse-file-name filename)))
 671
 672 (defun tramp-gvfs-handle-file-local-copy (filename)
 673   "Like `file-local-copy' for Tramp files."
 674   (with-parsed-tramp-file-name filename nil
 675     (let ((tmpfile (tramp-compat-make-temp-file filename)))
 676       (unless (file-exists-p filename)
 677         (tramp-error
 678          v 'file-error
 679          "Cannot make local copy of non-existing file `%s'" filename))
 680       (copy-file filename tmpfile t t)
 681       tmpfile)))
 682
 683 (defun tramp-gvfs-handle-file-name-all-completions (filename directory)
 684   "Like `file-name-all-completions' for Tramp files."
 685   (unless (save-match-data (string-match "/" filename))
 686     (file-name-all-completions filename (tramp-gvfs-fuse-file-name directory))))
 687
 688 (defun tramp-gvfs-handle-file-readable-p (filename)
 689   "Like `file-readable-p' for Tramp files."
 690   (file-readable-p (tramp-gvfs-fuse-file-name filename)))
 691
 692 (defun tramp-gvfs-handle-file-selinux-context (filename)
 693   "Like `file-selinux-context' for Tramp files."
 694   (tramp-compat-funcall
 695    'file-selinux-context (tramp-gvfs-fuse-file-name filename)))
 696
 697 (defun tramp-gvfs-handle-file-writable-p (filename)
 698   "Like `file-writable-p' for Tramp files."
 699   (file-writable-p (tramp-gvfs-fuse-file-name filename)))
 700
 701 (defun tramp-gvfs-handle-insert-directory
 702   (filename switches &optional wildcard full-directory-p)
 703   "Like `insert-directory' for Tramp files."
 704   (insert-directory
 705    (tramp-gvfs-fuse-file-name filename) switches wildcard full-directory-p))
 706
 707 (defun tramp-gvfs-handle-insert-file-contents
 708   (filename &optional visit beg end replace)
 709   "Like `insert-file-contents' for Tramp files."
 710   (unwind-protect
 711       (let ((fuse-file-name (tramp-gvfs-fuse-file-name filename))
 712             (result
 713              (insert-file-contents
 714               (tramp-gvfs-fuse-file-name filename) visit beg end replace)))
 715         (when (string-match fuse-file-name (car result))
 716           (setcar result (replace-match filename t t (car result))))
 717         result)
 718     (setq buffer-file-name filename)))
 719
 720 (defun tramp-gvfs-handle-make-directory (dir &optional parents)
 721   "Like `make-directory' for Tramp files."
 722   (with-parsed-tramp-file-name dir nil
 723     (condition-case err
 724         (with-tramp-gvfs-error-message dir 'make-directory
 725           (tramp-gvfs-fuse-file-name dir) parents)
 726
 727       ;; Error case.  Let's try it with the GVFS utilities.
 728       (error
 729        (tramp-message v 4 "`make-directory' failed, trying `gvfs-mkdir'")
 730        (unless
 731            (zerop
 732             (tramp-gvfs-send-command
 733              v "gvfs-mkdir" (tramp-gvfs-url-file-name dir)))
 734          ;; Propagate the error.
 735          (tramp-error v (car err) "%s" (cdr err)))))))
 736
 737 (defun tramp-gvfs-handle-process-file
 738   (program &optional infile destination display &rest args)
 739   "Like `process-file' for Tramp files."
 740   (let ((default-directory (tramp-gvfs-fuse-file-name default-directory)))
 741     (apply 'call-process program infile destination display args)))
 742
 743 (defun tramp-gvfs-handle-rename-file
 744   (filename newname &optional ok-if-already-exists)
 745   "Like `rename-file' for Tramp files."
 746   (with-parsed-tramp-file-name
 747       (if (tramp-tramp-file-p filename) filename newname) nil
 748     (tramp-with-progress-reporter
 749         v 0 (format "Renaming %s to %s" filename newname)
 750       (condition-case err
 751           (rename-file
 752            (if (tramp-gvfs-file-name-p filename)
 753                (tramp-gvfs-fuse-file-name filename)
 754              filename)
 755            (if (tramp-gvfs-file-name-p newname)
 756                (tramp-gvfs-fuse-file-name newname)
 757              newname)
 758            ok-if-already-exists)
 759
 760         ;; Error case.  Let's try it with the GVFS utilities.
 761         (error
 762          (tramp-message v 4 "`rename-file' failed, trying `gvfs-move'")
 763          (unless
 764              (zerop
 765               (tramp-gvfs-send-command
 766                v "gvfs-move"
 767                (tramp-gvfs-url-file-name filename)
 768                (tramp-gvfs-url-file-name newname)))
 769            ;; Propagate the error.
 770            (tramp-error v (car err) "%s" (cdr err)))))))
 771
 772   (when (file-remote-p filename)
 773     (with-parsed-tramp-file-name filename nil
 774       (tramp-flush-file-property v (file-name-directory localname))
 775       (tramp-flush-file-property v localname)))
 776
 777   (when (file-remote-p newname)
 778     (with-parsed-tramp-file-name newname nil
 779       (tramp-flush-file-property v (file-name-directory localname))
 780       (tramp-flush-file-property v localname))))
 781
 782 (defun tramp-gvfs-handle-set-file-modes (filename mode)
 783   "Like `set-file-modes' for Tramp files."
 784   (with-tramp-gvfs-error-message filename 'set-file-modes
 785     (tramp-gvfs-fuse-file-name filename) mode))
 786
 787 (defun tramp-gvfs-handle-set-file-selinux-context (filename context)
 788   "Like `set-file-selinux-context' for Tramp files."
 789   (with-tramp-gvfs-error-message filename 'set-file-selinux-context
 790     (tramp-gvfs-fuse-file-name filename) context))
 791
 792 (defun tramp-gvfs-handle-set-visited-file-modtime (&optional time-list)
 793   "Like `set-visited-file-modtime' for Tramp files."
 794   (let ((buffer-file-name (tramp-gvfs-fuse-file-name (buffer-file-name))))
 795     (set-visited-file-modtime time-list)))
 796
 797 (defun tramp-gvfs-handle-shell-command
 798   (command &optional output-buffer error-buffer)
 799   "Like `shell-command' for Tramp files."
 800   (let ((default-directory (tramp-gvfs-fuse-file-name default-directory)))
 801     (shell-command command output-buffer error-buffer)))
 802
 803 (defun tramp-gvfs-handle-start-file-process (name buffer program &rest args)
 804   "Like `start-file-process' for Tramp files."
 805   (let ((default-directory (tramp-gvfs-fuse-file-name default-directory)))
 806     (apply 'start-process name buffer program args)))
 807
 808 (defun tramp-gvfs-handle-verify-visited-file-modtime (buf)
 809   "Like `verify-visited-file-modtime' for Tramp files."
 810   (with-current-buffer buf
 811     (let ((buffer-file-name (tramp-gvfs-fuse-file-name (buffer-file-name))))
 812       (verify-visited-file-modtime buf))))
 813
 814 (defun tramp-gvfs-handle-write-region
 815   (start end filename &optional append visit lockname confirm)
 816   "Like `write-region' for Tramp files."
 817   (with-parsed-tramp-file-name filename nil
 818     (condition-case err
 819         (with-tramp-gvfs-error-message filename 'write-region
 820           start end (tramp-gvfs-fuse-file-name filename)
 821           append visit lockname confirm)
 822
 823       ;; Error case.  Let's try rename.
 824       (error
 825        (let ((tmpfile (tramp-compat-make-temp-file filename)))
 826          (tramp-message v 4 "`write-region' failed, trying `rename-file'")
 827          (write-region start end tmpfile)
 828          (condition-case nil
 829              (rename-file tmpfile filename)
 830            (error
 831             (delete-file tmpfile)
 832             (tramp-error v (car err) "%s" (cdr err)))))))
 833
 834     ;; Set file modification time.
 835     (when (or (eq visit t) (stringp visit))
 836       (set-visited-file-modtime (nth 5 (file-attributes filename))))
 837
 838     ;; The end.
 839     (when (or (eq visit t) (null visit) (stringp visit))
 840       (tramp-message v 0 "Wrote %s" filename))
 841     (run-hooks 'tramp-handle-write-region-hook)))
 842
 843 \f
 844 ;; File name conversions.
 845
 846 (defun tramp-gvfs-url-file-name (filename)
 847   "Return FILENAME in URL syntax."
 848   ;; "/" must NOT be hexlified.
 849   (let ((url-unreserved-chars (append '(?/) url-unreserved-chars)))
 850     (url-recreate-url
 851      (if (tramp-tramp-file-p filename)
 852          (with-parsed-tramp-file-name (file-truename filename) nil
 853            (when (string-match tramp-user-with-domain-regexp user)
 854              (setq user
 855                    (concat (match-string 2 user) ";"  (match-string 2 user))))
 856            (url-parse-make-urlobj
 857             method user nil
 858             (tramp-file-name-real-host v) (tramp-file-name-port v)
 859             (url-hexify-string localname)))
 860        (url-parse-make-urlobj
 861         "file" nil nil nil nil (url-hexify-string (file-truename filename)))))))
 862
 863 (defun tramp-gvfs-object-path (filename)
 864   "Create a D-Bus object path from FILENAME."
 865   (expand-file-name (dbus-escape-as-identifier filename) tramp-gvfs-path-tramp))
 866
 867 (defun tramp-gvfs-file-name (object-path)
 868   "Retrieve file name from D-Bus OBJECT-PATH."
 869   (dbus-unescape-from-identifier
 870    (replace-regexp-in-string "^.*/\\([^/]+\\)$" "\\1" object-path)))
 871
 872 (defun tramp-gvfs-fuse-file-name (filename)
 873   "Return FUSE file name, which is directly accessible."
 874   (with-parsed-tramp-file-name (expand-file-name filename) nil
 875     (tramp-gvfs-maybe-open-connection v)
 876     (let ((prefix (tramp-get-file-property v "/" "prefix" ""))
 877           (fuse-mountpoint
 878            (tramp-get-file-property v "/" "fuse-mountpoint" nil)))
 879       (unless fuse-mountpoint
 880         (tramp-error
 881          v 'file-error "There is no FUSE mount point for `%s'" filename))
 882       ;; We must hide the prefix, if any.
 883       (when (string-match (concat "^" (regexp-quote prefix)) localname)
 884         (setq localname (replace-match "" t t localname)))
 885       (tramp-message
 886        v 10 "remote file `%s' is local file `%s'"
 887        filename (concat fuse-mountpoint localname))
 888       (concat fuse-mountpoint localname))))
 889
 890 (defun tramp-bluez-address (device)
 891   "Return bluetooth device address from a given bluetooth DEVICE name."
 892   (when (stringp device)
 893     (if (string-match tramp-ipv6-regexp device)
 894         (match-string 0 device)
 895       (cadr (assoc device (tramp-bluez-list-devices))))))
 896
 897 (defun tramp-bluez-device (address)
 898   "Return bluetooth device name from a given bluetooth device ADDRESS.
 899 ADDRESS can have the form \"xx:xx:xx:xx:xx:xx\" or \"[xx:xx:xx:xx:xx:xx]\"."
 900   (when (stringp address)
 901     (while (string-match "[][]" address)
 902       (setq address (replace-match "" t t address)))
 903     (let (result)
 904       (dolist (item (tramp-bluez-list-devices) result)
 905         (when (string-match address (cadr item))
 906           (setq result (car item)))))))
 907
 908 \f
 909 ;; D-Bus GVFS functions.
 910
 911 (defun tramp-gvfs-handler-askpassword (message user domain flags)
 912   "Implementation for the \"org.gtk.vfs.MountOperation.askPassword\" method."
 913   (let* ((filename
 914           (tramp-gvfs-file-name (dbus-event-path-name last-input-event)))
 915          (pw-prompt
 916           (format
 917            "%s for %s "
 918            (if (string-match "\\([pP]assword\\|[pP]assphrase\\)" message)
 919                (capitalize (match-string 1 message))
 920              "Password")
 921            filename))
 922          password)
 923
 924     (condition-case nil
 925         (with-parsed-tramp-file-name filename l
 926           (when (and (zerop (length user))
 927                      (not
 928                       (zerop (logand flags tramp-gvfs-password-need-username))))
 929             (setq user (read-string "User name: ")))
 930           (when (and (zerop (length domain))
 931                      (not (zerop (logand flags tramp-gvfs-password-need-domain))))
 932             (setq domain (read-string "Domain name: ")))
 933
 934           (tramp-message l 6 "%S %S %S %d" message user domain flags)
 935           (setq tramp-current-method l-method
 936                 tramp-current-user user
 937                 tramp-current-host l-host
 938                 password (tramp-read-passwd
 939                           (tramp-get-connection-process l) pw-prompt))
 940
 941           ;; Return result.
 942           (if (stringp password)
 943               (list
 944                t ;; password handled.
 945                nil ;; no abort of D-Bus.
 946                password
 947                (tramp-file-name-real-user l)
 948                domain
 949                nil ;; not anonymous.
 950                0) ;; no password save.
 951             ;; No password provided.
 952             (list nil t "" (tramp-file-name-real-user l) domain nil 0)))
 953
 954       ;; When QUIT is raised, we shall return this information to D-Bus.
 955       (quit (list nil t "" "" "" nil 0)))))
 956
 957 (defun tramp-gvfs-handler-askquestion (message choices)
 958   "Implementation for the \"org.gtk.vfs.MountOperation.askQuestion\" method."
 959   (save-window-excursion
 960     (let ((enable-recursive-minibuffers t)
 961           choice)
 962
 963       (condition-case nil
 964           (with-parsed-tramp-file-name
 965               (tramp-gvfs-file-name (dbus-event-path-name last-input-event)) nil
 966             (tramp-message v 6 "%S %S" message choices)
 967
 968             ;; In theory, there can be several choices.  Until now,
 969             ;; there is only the question whether to accept an unknown
 970             ;; host signature.
 971             (with-temp-buffer
 972               ;; Preserve message for `progress-reporter'.
 973               (tramp-compat-with-temp-message ""
 974                 (insert message)
 975                 (pop-to-buffer (current-buffer))
 976                 (setq choice (if (yes-or-no-p (concat (car choices) " ")) 0 1))
 977                 (tramp-message v 6 "%d" choice)))
 978
 979             ;; When the choice is "no", we set a dummy fuse-mountpoint
 980             ;; in order to leave the timeout.
 981             (unless (zerop choice)
 982               (tramp-set-file-property v "/" "fuse-mountpoint" "/"))
 983
 984             (list
 985              t ;; handled.
 986              nil ;; no abort of D-Bus.
 987              choice))
 988
 989         ;; When QUIT is raised, we shall return this information to D-Bus.
 990         (quit (list nil t 0))))))
 991
 992 (defun tramp-gvfs-handler-mounted-unmounted (mount-info)
 993   "Signal handler for the \"org.gtk.vfs.MountTracker.mounted\" and
 994 \"org.gtk.vfs.MountTracker.unmounted\" signals."
 995   (ignore-errors
 996     (let ((signal-name (dbus-event-member-name last-input-event))
 997           (elt mount-info))
 998       ;; Jump over the first elements of the mount info. Since there
 999       ;; were changes in the entries, we cannot access dedicated
1000       ;; elements.
1001       (while (stringp (car elt)) (setq elt (cdr elt)))
1002       (let* ((fuse-mountpoint (dbus-byte-array-to-string (cadr elt)))
1003              (mount-spec (caddr elt))
1004              (default-location (dbus-byte-array-to-string (cadddr elt)))
1005              (method (dbus-byte-array-to-string
1006                       (cadr (assoc "type" (cadr mount-spec)))))
1007              (user (dbus-byte-array-to-string
1008                     (cadr (assoc "user" (cadr mount-spec)))))
1009              (domain (dbus-byte-array-to-string
1010                       (cadr (assoc "domain" (cadr mount-spec)))))
1011              (host (dbus-byte-array-to-string
1012                     (cadr (or (assoc "host" (cadr mount-spec))
1013                               (assoc "server" (cadr mount-spec))))))
1014              (port (dbus-byte-array-to-string
1015                     (cadr (assoc "port" (cadr mount-spec)))))
1016              (ssl (dbus-byte-array-to-string
1017                    (cadr (assoc "ssl" (cadr mount-spec)))))
1018              (prefix (concat (dbus-byte-array-to-string (car mount-spec))
1019                              (dbus-byte-array-to-string
1020                               (cadr (assoc "share" (cadr mount-spec)))))))
1021         (when (string-match "^smb" method)
1022           (setq method "smb"))
1023         (when (string-equal "obex" method)
1024           (setq host (tramp-bluez-device host)))
1025         (when (and (string-equal "dav" method) (string-equal "true" ssl))
1026           (setq method "davs"))
1027         (unless (zerop (length domain))
1028           (setq user (concat user tramp-prefix-domain-format domain)))
1029         (unless (zerop (length port))
1030           (setq host (concat host tramp-prefix-port-format port)))
1031         (with-parsed-tramp-file-name
1032             (tramp-make-tramp-file-name method user host "") nil
1033           (tramp-message
1034            v 6 "%s %s"
1035            signal-name (tramp-gvfs-stringify-dbus-message mount-info))
1036           (tramp-set-file-property v "/" "list-mounts" 'undef)
1037           (if (string-equal signal-name "unmounted")
1038               (tramp-set-file-property v "/" "fuse-mountpoint" nil)
1039             ;; Set prefix, mountpoint and location.
1040             (unless (string-equal prefix "/")
1041               (tramp-set-file-property v "/" "prefix" prefix))
1042             (tramp-set-file-property v "/" "fuse-mountpoint" fuse-mountpoint)
1043             (tramp-set-file-property
1044              v "/" "default-location" default-location)))))))
1045
1046 (dbus-register-signal
1047  :session nil tramp-gvfs-path-mounttracker
1048  tramp-gvfs-interface-mounttracker "mounted"
1049  'tramp-gvfs-handler-mounted-unmounted)
1050
1051 (dbus-register-signal
1052  :session nil tramp-gvfs-path-mounttracker
1053  tramp-gvfs-interface-mounttracker "unmounted"
1054  'tramp-gvfs-handler-mounted-unmounted)
1055
1056 (defun tramp-gvfs-connection-mounted-p (vec)
1057   "Check, whether the location is already mounted."
1058   (or
1059    (tramp-get-file-property vec "/" "fuse-mountpoint" nil)
1060    (catch 'mounted
1061      (dolist
1062          (elt
1063           (with-file-property vec "/" "list-mounts"
1064             (with-tramp-dbus-call-method vec t
1065               :session tramp-gvfs-service-daemon tramp-gvfs-path-mounttracker
1066               tramp-gvfs-interface-mounttracker "listMounts"))
1067           nil)
1068        ;; Jump over the first elements of the mount info. Since there
1069        ;; were changes in the entries, we cannot access dedicated
1070        ;; elements.
1071        (while (stringp (car elt)) (setq elt (cdr elt)))
1072        (let* ((fuse-mountpoint (dbus-byte-array-to-string (cadr elt)))
1073               (mount-spec (caddr elt))
1074               (default-location (dbus-byte-array-to-string (cadddr elt)))
1075               (method (dbus-byte-array-to-string
1076                        (cadr (assoc "type" (cadr mount-spec)))))
1077               (user (dbus-byte-array-to-string
1078                      (cadr (assoc "user" (cadr mount-spec)))))
1079               (domain (dbus-byte-array-to-string
1080                        (cadr (assoc "domain" (cadr mount-spec)))))
1081               (host (dbus-byte-array-to-string
1082                      (cadr (or (assoc "host" (cadr mount-spec))
1083                                (assoc "server" (cadr mount-spec))))))
1084               (port (dbus-byte-array-to-string
1085                      (cadr (assoc "port" (cadr mount-spec)))))
1086               (ssl (dbus-byte-array-to-string
1087                     (cadr (assoc "ssl" (cadr mount-spec)))))
1088               (prefix (concat (dbus-byte-array-to-string (car mount-spec))
1089                               (dbus-byte-array-to-string
1090                                (cadr (assoc "share" (cadr mount-spec)))))))
1091          (when (string-match "^smb" method)
1092            (setq method "smb"))
1093          (when (string-equal "obex" method)
1094            (setq host (tramp-bluez-device host)))
1095          (when (and (string-equal "dav" method) (string-equal "true" ssl))
1096            (setq method "davs"))
1097          (when (and (string-equal "synce" method) (zerop (length user)))
1098            (setq user (or (tramp-file-name-user vec) "")))
1099          (unless (zerop (length domain))
1100            (setq user (concat user tramp-prefix-domain-format domain)))
1101          (unless (zerop (length port))
1102            (setq host (concat host tramp-prefix-port-format port)))
1103          (when (and
1104                 (string-equal method (tramp-file-name-method vec))
1105                 (string-equal user (or (tramp-file-name-user vec) ""))
1106                 (string-equal host (tramp-file-name-host vec))
1107                 (string-match (concat "^" (regexp-quote prefix))
1108                               (tramp-file-name-localname vec)))
1109            ;; Set prefix, mountpoint and location.
1110            (unless (string-equal prefix "/")
1111              (tramp-set-file-property vec "/" "prefix" prefix))
1112            (tramp-set-file-property vec "/" "fuse-mountpoint" fuse-mountpoint)
1113            (tramp-set-file-property vec "/" "default-location" default-location)
1114            (throw 'mounted t)))))))
1115
1116 (defun tramp-gvfs-mount-spec (vec)
1117   "Return a mount-spec for \"org.gtk.vfs.MountTracker.mountLocation\"."
1118   (let* ((method (tramp-file-name-method vec))
1119          (user (tramp-file-name-real-user vec))
1120          (domain (tramp-file-name-domain vec))
1121          (host (tramp-file-name-real-host vec))
1122          (port (tramp-file-name-port vec))
1123          (localname (tramp-file-name-localname vec))
1124          (ssl (if (string-match "^davs" method) "true" "false"))
1125          (mount-spec '(:array))
1126          (mount-pref "/"))
1127
1128     (setq
1129      mount-spec
1130      (append
1131       mount-spec
1132       (cond
1133        ((string-equal "smb" method)
1134         (string-match "^/?\\([^/]+\\)" localname)
1135         `((:struct "type" ,(dbus-string-to-byte-array "smb-share"))
1136           (:struct "server" ,(dbus-string-to-byte-array host))
1137           (:struct "share" ,(dbus-string-to-byte-array
1138                              (match-string 1 localname)))))
1139        ((string-equal "obex" method)
1140         `((:struct "type" ,(dbus-string-to-byte-array method))
1141           (:struct "host" ,(dbus-string-to-byte-array
1142                             (concat "[" (tramp-bluez-address host) "]")))))
1143        ((string-match "^dav" method)
1144         `((:struct "type" ,(dbus-string-to-byte-array "dav"))
1145           (:struct "host" ,(dbus-string-to-byte-array host))
1146           (:struct "ssl" ,(dbus-string-to-byte-array ssl))))
1147        (t
1148         `((:struct "type" ,(dbus-string-to-byte-array method))
1149           (:struct "host" ,(dbus-string-to-byte-array host)))))))
1150
1151     (when user
1152       (add-to-list
1153        'mount-spec
1154        `(:struct "user" ,(dbus-string-to-byte-array user))
1155        'append))
1156
1157     (when domain
1158       (add-to-list
1159        'mount-spec
1160        `(:struct "domain" ,(dbus-string-to-byte-array domain))
1161        'append))
1162
1163     (when port
1164       (add-to-list
1165        'mount-spec
1166        `(:struct "port" ,(dbus-string-to-byte-array (number-to-string port)))
1167        'append))
1168
1169     (when (and (string-match "^dav" method)
1170                (string-match "^/?[^/]+" localname))
1171       (setq mount-pref (match-string 0 localname)))
1172
1173     ;; Return.
1174     `(:struct ,(dbus-string-to-byte-array mount-pref) ,mount-spec)))
1175
1176 \f
1177 ;; Connection functions
1178
1179 (defun tramp-gvfs-maybe-open-connection (vec)
1180   "Maybe open a connection VEC.
1181 Does not do anything if a connection is already open, but re-opens the
1182 connection if a previous connection has died for some reason."
1183
1184   ;; We set the file name, in case there are incoming D-Bus signals or
1185   ;; D-Bus errors.
1186   (setq tramp-gvfs-dbus-event-vector vec)
1187
1188   ;; For password handling, we need a process bound to the connection
1189   ;; buffer.  Therefore, we create a dummy process.  Maybe there is a
1190   ;; better solution?
1191   (unless (get-buffer-process (tramp-get-buffer vec))
1192     (let ((p (make-network-process
1193               :name (tramp-buffer-name vec)
1194               :buffer (tramp-get-buffer vec)
1195               :server t :host 'local :service t)))
1196       (tramp-compat-set-process-query-on-exit-flag p nil)))
1197
1198   (unless (tramp-gvfs-connection-mounted-p vec)
1199     (let* ((method (tramp-file-name-method vec))
1200            (user (tramp-file-name-user vec))
1201            (host (tramp-file-name-host vec))
1202            (object-path
1203             (tramp-gvfs-object-path
1204              (tramp-make-tramp-file-name method user host ""))))
1205
1206       (tramp-with-progress-reporter
1207           vec 3
1208           (if (zerop (length user))
1209               (format "Opening connection for %s using %s" host method)
1210             (format "Opening connection for %s@%s using %s" user host method))
1211
1212         ;; Enable auth-source and password-cache.
1213         (tramp-set-connection-property vec "first-password-request" t)
1214
1215         ;; There will be a callback of "askPassword" when a password is
1216         ;; needed.
1217         (dbus-register-method
1218          :session dbus-service-emacs object-path
1219          tramp-gvfs-interface-mountoperation "askPassword"
1220          'tramp-gvfs-handler-askpassword)
1221
1222         ;; There could be a callback of "askQuestion" when adding fingerprint.
1223         (dbus-register-method
1224          :session dbus-service-emacs object-path
1225          tramp-gvfs-interface-mountoperation "askQuestion"
1226          'tramp-gvfs-handler-askquestion)
1227
1228         ;; The call must be asynchronously, because of the "askPassword"
1229         ;; or "askQuestion"callbacks.
1230         (with-tramp-dbus-call-method vec nil
1231           :session tramp-gvfs-service-daemon tramp-gvfs-path-mounttracker
1232           tramp-gvfs-interface-mounttracker "mountLocation"
1233           (tramp-gvfs-mount-spec vec) (dbus-get-unique-name :session)
1234           :object-path object-path)
1235
1236         ;; We must wait, until the mount is applied.  This will be
1237         ;; indicated by the "mounted" signal, i.e. the "fuse-mountpoint"
1238         ;; file property.
1239         (with-timeout
1240             (60
1241              (if (zerop (length (tramp-file-name-user vec)))
1242                  (tramp-error
1243                   vec 'file-error
1244                   "Timeout reached mounting %s using %s" host method)
1245                (tramp-error
1246                 vec 'file-error
1247                 "Timeout reached mounting %s@%s using %s" user host method)))
1248           (while (not (tramp-get-file-property vec "/" "fuse-mountpoint" nil))
1249             (read-event nil nil 0.1)))
1250
1251         ;; If `tramp-gvfs-handler-askquestion' has returned "No", it
1252         ;; is marked with the fuse-mountpoint "/".  We shall react.
1253         (when (string-equal
1254                (tramp-get-file-property vec "/" "fuse-mountpoint" "") "/")
1255           (tramp-error vec 'file-error "FUSE mount denied"))
1256
1257         ;; We set the connection property "started" in order to put the
1258         ;; remote location into the cache, which is helpful for further
1259         ;; completion.
1260         (tramp-set-connection-property vec "started" t)))))
1261
1262 (defun tramp-gvfs-send-command (vec command &rest args)
1263   "Send the COMMAND with its ARGS to connection VEC.
1264 COMMAND is usually a command from the gvfs-* utilities.
1265 `call-process' is applied, and its return code is returned."
1266   (let (result)
1267     (with-current-buffer (tramp-get-buffer vec)
1268       (erase-buffer)
1269       (tramp-message vec 6 "%s %s" command (mapconcat 'identity args " "))
1270       (setq result (apply 'tramp-compat-call-process command nil t nil args))
1271       (tramp-message vec 6 "%s" (buffer-string))
1272       result)))
1273
1274 \f
1275 ;; D-Bus BLUEZ functions.
1276
1277 (defun tramp-bluez-list-devices ()
1278   "Return all discovered bluetooth devices as list.
1279 Every entry is a list (NAME ADDRESS).
1280
1281 If `tramp-bluez-discover-devices-timeout' is an integer, and the last
1282 discovery happened more time before indicated there, a rescan will be
1283 started, which lasts some ten seconds.  Otherwise, cached results will
1284 be used."
1285   ;; Reset the scanned devices list if time has passed.
1286   (and (integerp tramp-bluez-discover-devices-timeout)
1287        (integerp tramp-bluez-discovery)
1288        (> (tramp-time-diff (current-time) tramp-bluez-discovery)
1289           tramp-bluez-discover-devices-timeout)
1290        (setq tramp-bluez-devices nil))
1291
1292   ;; Rescan if needed.
1293   (unless tramp-bluez-devices
1294     (let ((object-path
1295            (with-tramp-dbus-call-method tramp-gvfs-dbus-event-vector t
1296              :system tramp-bluez-service "/"
1297              tramp-bluez-interface-manager "DefaultAdapter")))
1298       (setq tramp-bluez-devices nil
1299             tramp-bluez-discovery t)
1300       (with-tramp-dbus-call-method tramp-gvfs-dbus-event-vector nil
1301         :system tramp-bluez-service object-path
1302         tramp-bluez-interface-adapter "StartDiscovery")
1303       (while tramp-bluez-discovery
1304         (read-event nil nil 0.1))))
1305   (setq tramp-bluez-discovery (current-time))
1306   (tramp-message tramp-gvfs-dbus-event-vector 10 "%s" tramp-bluez-devices)
1307   tramp-bluez-devices)
1308
1309 (defun tramp-bluez-property-changed (property value)
1310   "Signal handler for the \"org.bluez.Adapter.PropertyChanged\" signal."
1311   (tramp-message tramp-gvfs-dbus-event-vector 6 "%s %s" property value)
1312   (cond
1313    ((string-equal property "Discovering")
1314     (unless (car value)
1315       ;; "Discovering" FALSE means discovery run has been completed.
1316       ;; We stop it, because we don't need another run.
1317       (setq tramp-bluez-discovery nil)
1318       (with-tramp-dbus-call-method tramp-gvfs-dbus-event-vector t
1319         :system tramp-bluez-service (dbus-event-path-name last-input-event)
1320         tramp-bluez-interface-adapter "StopDiscovery")))))
1321
1322 (dbus-register-signal
1323  :system nil nil tramp-bluez-interface-adapter "PropertyChanged"
1324  'tramp-bluez-property-changed)
1325
1326 (defun tramp-bluez-device-found (device args)
1327   "Signal handler for the \"org.bluez.Adapter.DeviceFound\" signal."
1328   (tramp-message tramp-gvfs-dbus-event-vector 6 "%s %s" device args)
1329   (let ((alias (car (cadr (assoc "Alias" args))))
1330         (address (car (cadr (assoc "Address" args)))))
1331     ;; Maybe we shall check the device class for being a proper
1332     ;; device, and call also SDP in order to find the obex service.
1333     (add-to-list 'tramp-bluez-devices (list alias address))))
1334
1335 (dbus-register-signal
1336  :system nil nil tramp-bluez-interface-adapter "DeviceFound"
1337  'tramp-bluez-device-found)
1338
1339 (defun tramp-bluez-parse-device-names (ignore)
1340   "Return a list of (nil host) tuples allowed to access."
1341   (mapcar
1342    (lambda (x) (list nil (car x)))
1343    (tramp-bluez-list-devices)))
1344
1345 ;; Add completion function for OBEX method.
1346 (when (member tramp-bluez-service (dbus-list-known-names :system))
1347   (tramp-set-completion-function
1348    "obex" '((tramp-bluez-parse-device-names ""))))
1349
1350 \f
1351 ;; D-Bus zeroconf functions.
1352
1353 (defun tramp-zeroconf-parse-workstation-device-names (ignore)
1354   "Return a list of (user host) tuples allowed to access."
1355   (mapcar
1356    (lambda (x)
1357      (list nil (zeroconf-service-host x)))
1358    (zeroconf-list-services "_workstation._tcp")))
1359
1360 (defun tramp-zeroconf-parse-webdav-device-names (ignore)
1361   "Return a list of (user host) tuples allowed to access."
1362   (mapcar
1363    (lambda (x)
1364      (let ((host (zeroconf-service-host x))
1365            (port (zeroconf-service-port x))
1366            (text (zeroconf-service-txt x))
1367            user)
1368        (when port
1369          (setq host (format "%s%s%d" host tramp-prefix-port-regexp port)))
1370        ;; A user is marked in a TXT field like "u=guest".
1371        (while text
1372          (when (string-match "u=\\(.+\\)$" (car text))
1373            (setq user (match-string 1 (car text))))
1374          (setq text (cdr text)))
1375        (list user host)))
1376    (zeroconf-list-services "_webdav._tcp")))
1377
1378 ;; Add completion function for DAV and DAVS methods.
1379 (when (member zeroconf-service-avahi (dbus-list-known-names :system))
1380   (zeroconf-init tramp-gvfs-zeroconf-domain)
1381   (tramp-set-completion-function
1382    "sftp" '((tramp-zeroconf-parse-workstation-device-names "")))
1383   (tramp-set-completion-function
1384    "dav" '((tramp-zeroconf-parse-webdav-device-names "")))
1385   (tramp-set-completion-function
1386    "davs" '((tramp-zeroconf-parse-webdav-device-names ""))))
1387
1388 \f
1389 ;; D-Bus SYNCE functions.
1390
1391 (defun tramp-synce-list-devices ()
1392   "Return all discovered synce devices as list.
1393 They are retrieved from the hal daemon."
1394   (let (tramp-synce-devices)
1395     (dolist (device
1396              (with-tramp-dbus-call-method tramp-gvfs-dbus-event-vector t
1397                :system tramp-hal-service tramp-hal-path-manager
1398                tramp-hal-interface-manager "GetAllDevices"))
1399       (when (with-tramp-dbus-call-method tramp-gvfs-dbus-event-vector t
1400               :system tramp-hal-service device tramp-hal-interface-device
1401               "PropertyExists" "sync.plugin")
1402         (add-to-list
1403          'tramp-synce-devices
1404          (with-tramp-dbus-call-method tramp-gvfs-dbus-event-vector t
1405            :system tramp-hal-service device tramp-hal-interface-device
1406            "GetPropertyString" "pda.pocketpc.name"))))
1407     (tramp-message tramp-gvfs-dbus-event-vector 10 "%s" tramp-synce-devices)
1408     tramp-synce-devices))
1409
1410 (defun tramp-synce-parse-device-names (ignore)
1411   "Return a list of (nil host) tuples allowed to access."
1412   (mapcar
1413    (lambda (x) (list nil x))
1414    (tramp-synce-list-devices)))
1415
1416 ;; Add completion function for SYNCE method.
1417 (tramp-set-completion-function
1418  "synce" '((tramp-synce-parse-device-names "")))
1419
1420 (add-hook 'tramp-unload-hook
1421           (lambda ()
1422             (unload-feature 'tramp-gvfs 'force)))
1423
1424 (provide 'tramp-gvfs)
1425
1426 ;;; TODO:
1427
1428 ;; * Host name completion via smb-server or smb-network.
1429 ;; * Check how two shares of the same SMB server can be mounted in
1430 ;;   parallel.
1431 ;; * Apply SDP on bluetooth devices, in order to filter out obex
1432 ;;   capability.
1433 ;; * Implement obex for other serial communication but bluetooth.
1434
1435 ;;; tramp-gvfs.el ends here