code.grnet.gr Git - snf-image-creator/blob - image_creator/dialog_menu.py

   1 #!/usr/bin/env python
   2
   3 # Copyright 2012 GRNET S.A. All rights reserved.
   4 #
   5 # Redistribution and use in source and binary forms, with or
   6 # without modification, are permitted provided that the following
   7 # conditions are met:
   8 #
   9 #   1. Redistributions of source code must retain the above
  10 #      copyright notice, this list of conditions and the following
  11 #      disclaimer.
  12 #
  13 #   2. Redistributions in binary form must reproduce the above
  14 #      copyright notice, this list of conditions and the following
  15 #      disclaimer in the documentation and/or other materials
  16 #      provided with the distribution.
  17 #
  18 # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
  19 # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  20 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  21 # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
  22 # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  25 # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  26 # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  28 # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29 # POSSIBILITY OF SUCH DAMAGE.
  30 #
  31 # The views and conclusions contained in the software and
  32 # documentation are those of the authors and should not be
  33 # interpreted as representing official policies, either expressed
  34 # or implied, of GRNET S.A.
  35
  36 import sys
  37 import os
  38 import textwrap
  39 import StringIO
  40
  41 from image_creator import __version__ as version
  42 from image_creator.util import MD5
  43 from image_creator.output.dialog import GaugeOutput, InfoBoxOutput
  44 from image_creator.kamaki_wrapper import Kamaki, ClientError
  45 from image_creator.help import get_help_file
  46 from image_creator.dialog_util import SMALL_WIDTH, WIDTH, \
  47     update_background_title, confirm_reset, confirm_exit, Reset, \
  48     extract_image, extract_metadata_string
  49
  50 CONFIGURATION_TASKS = [
  51     ("Partition table manipulation", ["FixPartitionTable"],
  52         ["linux", "windows"]),
  53     ("File system resize",
  54         ["FilesystemResizeUnmounted", "FilesystemResizeMounted"],
  55         ["linux", "windows"]),
  56     ("Swap partition configuration", ["AddSwap"], ["linux"]),
  57     ("SSH keys removal", ["DeleteSSHKeys"], ["linux"]),
  58     ("Temporal RDP disabling", ["DisableRemoteDesktopConnections"],
  59         ["windows"]),
  60     ("SELinux relabeling at next boot", ["SELinuxAutorelabel"], ["linux"]),
  61     ("Hostname/Computer Name assignment", ["AssignHostname"],
  62         ["windows", "linux"]),
  63     ("Password change", ["ChangePassword"], ["windows", "linux"]),
  64     ("File injection", ["EnforcePersonality"], ["windows", "linux"])
  65 ]
  66
  67
  68 class metadata_monitor(object):
  69     def __init__(self, session, meta):
  70         self.session = session
  71         self.meta = meta
  72
  73     def __enter__(self):
  74         self.old = {}
  75         for (k, v) in self.meta.items():
  76             self.old[k] = v
  77
  78     def __exit__(self, type, value, traceback):
  79         d = self.session['dialog']
  80
  81         altered = {}
  82         added = {}
  83
  84         for (k, v) in self.meta.items():
  85             if k not in self.old:
  86                 added[k] = v
  87             elif self.old[k] != v:
  88                 altered[k] = v
  89
  90         if not (len(added) or len(altered)):
  91             return
  92
  93         msg = "The last action has changed some image properties:\n\n"
  94         if len(added):
  95             msg += "New image properties:\n"
  96             for (k, v) in added.items():
  97                 msg += '    %s: "%s"\n' % (k, v)
  98             msg += "\n"
  99         if len(altered):
 100             msg += "Updated image properties:\n"
 101             for (k, v) in altered.items():
 102                 msg += '    %s: "%s" -> "%s"\n' % (k, self.old[k], v)
 103             msg += "\n"
 104
 105         self.session['metadata'].update(added)
 106         self.session['metadata'].update(altered)
 107         d.msgbox(msg, title="Image Property Changes", width=SMALL_WIDTH)
 108
 109
 110 def upload_image(session):
 111     d = session["dialog"]
 112     dev = session['device']
 113     size = dev.size
 114
 115     if "account" not in session:
 116         d.msgbox("You need to provide your ~okeanos account before you "
 117                  "can upload images to pithos+", width=SMALL_WIDTH)
 118         return False
 119
 120     while 1:
 121         init = session["upload"] if "upload" in session else ''
 122         (code, answer) = d.inputbox("Please provide a filename:", init=init,
 123                                     width=WIDTH)
 124
 125         if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
 126             return False
 127
 128         filename = answer.strip()
 129         if len(filename) == 0:
 130             d.msgbox("Filename cannot be empty", width=SMALL_WIDTH)
 131             continue
 132         session['upload'] = filename
 133         break
 134
 135     gauge = GaugeOutput(d, "Image Upload", "Uploading...")
 136     try:
 137         out = dev.out
 138         out.add(gauge)
 139         try:
 140             if 'checksum' not in session:
 141                 md5 = MD5(out)
 142                 session['checksum'] = md5.compute(session['snapshot'], size)
 143
 144             kamaki = Kamaki(session['account'], out)
 145             try:
 146                 # Upload image file
 147                 with open(session['snapshot'], 'rb') as f:
 148                     session["pithos_uri"] = \
 149                         kamaki.upload(f, size, filename,
 150                                       "Calculating block hashes",
 151                                       "Uploading missing blocks")
 152                 # Upload metadata file
 153                 out.output("Uploading metadata file...")
 154                 metastring = extract_metadata_string(session)
 155                 kamaki.upload(StringIO.StringIO(metastring),
 156                               size=len(metastring),
 157                               remote_path="%s.meta" % filename)
 158                 out.success("done")
 159
 160                 # Upload md5sum file
 161                 out.output("Uploading md5sum file...")
 162                 md5str = "%s %s\n" % (session['checksum'], filename)
 163                 kamaki.upload(StringIO.StringIO(md5str), size=len(md5str),
 164                               remote_path="%s.md5sum" % filename)
 165                 out.success("done")
 166
 167             except ClientError as e:
 168                 d.msgbox("Error in pithos+ client: %s" % e.message,
 169                          title="Pithos+ Client Error", width=SMALL_WIDTH)
 170                 if 'pithos_uri' in session:
 171                     del session['pithos_uri']
 172                 return False
 173         finally:
 174             out.remove(gauge)
 175     finally:
 176         gauge.cleanup()
 177
 178     d.msgbox("Image file `%s' was successfully uploaded to pithos+" % filename,
 179              width=SMALL_WIDTH)
 180
 181     return True
 182
 183
 184 def register_image(session):
 185     d = session["dialog"]
 186     dev = session['device']
 187
 188     is_public = False
 189
 190     if "account" not in session:
 191         d.msgbox("You need to provide your ~okeanos credentians before you "
 192                  "can register an images to cyclades",
 193                  width=SMALL_WIDTH)
 194         return False
 195
 196     if "pithos_uri" not in session:
 197         d.msgbox("You need to upload the image to pithos+ before you can "
 198                  "register it to cyclades", width=SMALL_WIDTH)
 199         return False
 200
 201     while 1:
 202         (code, answer) = d.inputbox("Please provide a registration name:",
 203                                     width=WIDTH)
 204         if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
 205             return False
 206
 207         name = answer.strip()
 208         if len(name) == 0:
 209             d.msgbox("Registration name cannot be empty", width=SMALL_WIDTH)
 210             continue
 211
 212         ret = d.yesno("Make the image public?\\nA public image is accessible"
 213                       "by every user of the service.", defaultno=1,
 214                       width=WIDTH)
 215         if ret not in (0, 1):
 216             continue
 217
 218         is_public = True if ret == 0 else False
 219
 220         break
 221
 222     metadata = {}
 223     metadata.update(session['metadata'])
 224     if 'task_metadata' in session:
 225         for key in session['task_metadata']:
 226             metadata[key] = 'yes'
 227
 228     img_type = "public" if is_public else "private"
 229     gauge = GaugeOutput(d, "Image Registration", "Registering image...")
 230     try:
 231         out = dev.out
 232         out.add(gauge)
 233         try:
 234             out.output("Registering %s image with Cyclades..." % img_type)
 235             try:
 236                 kamaki = Kamaki(session['account'], out)
 237                 kamaki.register(name, session['pithos_uri'], metadata,
 238                                 is_public)
 239                 out.success('done')
 240             except ClientError as e:
 241                 d.msgbox("Error in pithos+ client: %s" % e.message)
 242                 return False
 243         finally:
 244             out.remove(gauge)
 245     finally:
 246         gauge.cleanup()
 247
 248     d.msgbox("%s image `%s' was successfully registered with Cyclades as `%s'"
 249              % (img_type.title(), session['upload'], name), width=SMALL_WIDTH)
 250     return True
 251
 252
 253 def kamaki_menu(session):
 254     d = session['dialog']
 255     default_item = "Account"
 256
 257     if 'account' not in session:
 258         token = Kamaki.get_token()
 259         if token:
 260             session['account'] = Kamaki.get_account(token)
 261             if not session['account']:
 262                 del session['account']
 263                 Kamaki.save_token('')  # The token was not valid. Remove it
 264
 265     while 1:
 266         account = session["account"]['username'] if "account" in session else \
 267             "<none>"
 268         upload = session["upload"] if "upload" in session else "<none>"
 269
 270         choices = [("Account", "Change your ~okeanos account: %s" % account),
 271                    ("Upload", "Upload image to pithos+"),
 272                    ("Register", "Register the image to cyclades: %s" % upload)]
 273
 274         (code, choice) = d.menu(
 275             text="Choose one of the following or press <Back> to go back.",
 276             width=WIDTH, choices=choices, cancel="Back", height=13,
 277             menu_height=5, default_item=default_item,
 278             title="Image Registration Menu")
 279
 280         if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
 281             return False
 282
 283         if choice == "Account":
 284             default_item = "Account"
 285             (code, answer) = d.inputbox(
 286                 "Please provide your ~okeanos token:",
 287                 init=session["account"]['auth_token'] if "account" in session
 288                 else '', width=WIDTH)
 289             if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
 290                 continue
 291             if len(answer) == 0 and "account" in session:
 292                     del session["account"]
 293             else:
 294                 token = answer.strip()
 295                 session['account'] = Kamaki.get_account(token)
 296                 if session['account'] is not None:
 297                     Kamaki.save_token(token)
 298                     default_item = "Upload"
 299                 else:
 300                     del session['account']
 301                     d.msgbox("The token you provided is not valid!",
 302                              width=SMALL_WIDTH)
 303         elif choice == "Upload":
 304             if upload_image(session):
 305                 default_item = "Register"
 306             else:
 307                 default_item = "Upload"
 308         elif choice == "Register":
 309             if register_image(session):
 310                 return True
 311             else:
 312                 default_item = "Register"
 313
 314
 315 def add_property(session):
 316     d = session['dialog']
 317
 318     while 1:
 319         (code, answer) = d.inputbox("Please provide a name for a new image"
 320                                     " property:", width=WIDTH)
 321         if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
 322             return False
 323
 324         name = answer.strip()
 325         if len(name) == 0:
 326             d.msgbox("A property name cannot be empty", width=SMALL_WIDTH)
 327             continue
 328
 329         break
 330
 331     while 1:
 332         (code, answer) = d.inputbox("Please provide a value for image "
 333                                     "property %s" % name, width=WIDTH)
 334         if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
 335             return False
 336
 337         value = answer.strip()
 338         if len(value) == 0:
 339             d.msgbox("Value cannot be empty", width=SMALL_WIDTH)
 340             continue
 341
 342         break
 343
 344     session['metadata'][name] = value
 345
 346     return True
 347
 348
 349 def modify_properties(session):
 350     d = session['dialog']
 351
 352     while 1:
 353         choices = []
 354         for (key, val) in session['metadata'].items():
 355             choices.append((str(key), str(val)))
 356
 357         (code, choice) = d.menu(
 358             "In this menu you can edit existing image properties or add new "
 359             "ones. Be careful! Most properties have special meaning and "
 360             "alter the image deployment behaviour. Press <HELP> to see more "
 361             "information about image properties. Press <BACK> when done.",
 362             height=18, width=WIDTH, choices=choices, menu_height=10,
 363             ok_label="Edit", extra_button=1, extra_label="Add", cancel="Back",
 364             help_button=1, title="Image Properties")
 365
 366         if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
 367             return True
 368         # Edit button
 369         elif code == d.DIALOG_OK:
 370             (code, answer) = d.inputbox("Please provide a new value for the "
 371                                         "image property with name `%s':" %
 372                                         choice,
 373                                         init=session['metadata'][choice],
 374                                         width=WIDTH)
 375             if code not in (d.DIALOG_CANCEL, d.DIALOG_ESC):
 376                 value = answer.strip()
 377                 if len(value) == 0:
 378                     d.msgbox("Value cannot be empty!")
 379                     continue
 380                 else:
 381                     session['metadata'][choice] = value
 382         # ADD button
 383         elif code == d.DIALOG_EXTRA:
 384             add_property(session)
 385         elif code == 'help':
 386             help_file = get_help_file("image_properties")
 387             assert os.path.exists(help_file)
 388             d.textbox(help_file, title="Image Properties", width=70, height=40)
 389
 390
 391 def delete_properties(session):
 392     d = session['dialog']
 393
 394     choices = []
 395     for (key, val) in session['metadata'].items():
 396         choices.append((key, "%s" % val, 0))
 397
 398     (code, to_delete) = d.checklist("Choose which properties to delete:",
 399                                     choices=choices, width=WIDTH)
 400
 401     # If the user exits with ESC or CANCEL, the returned tag list is empty.
 402     for i in to_delete:
 403         del session['metadata'][i]
 404
 405     cnt = len(to_delete)
 406     if cnt > 0:
 407         d.msgbox("%d image properties were deleted." % cnt, width=SMALL_WIDTH)
 408         return True
 409     else:
 410         return False
 411
 412
 413 def exclude_tasks(session):
 414     d = session['dialog']
 415
 416     index = 0
 417     displayed_index = 1
 418     choices = []
 419     mapping = {}
 420     if 'excluded_tasks' not in session:
 421         session['excluded_tasks'] = []
 422
 423     if -1 in session['excluded_tasks']:
 424         if not d.yesno("Image deployment configuration is disabled. "
 425                        "Do you wish to enable it?", width=SMALL_WIDTH):
 426             session['excluded_tasks'].remove(-1)
 427         else:
 428             return False
 429
 430     for (msg, task, osfamily) in CONFIGURATION_TASKS:
 431         if session['metadata']['OSFAMILY'] in osfamily:
 432             checked = 1 if index in session['excluded_tasks'] else 0
 433             choices.append((str(displayed_index), msg, checked))
 434             mapping[displayed_index] = index
 435             displayed_index += 1
 436         index += 1
 437
 438     while 1:
 439         (code, tags) = d.checklist(
 440             text="Please choose which configuration tasks you would like to "
 441                  "prevent from running during image deployment. "
 442                  "Press <No Config> to supress any configuration. "
 443                  "Press <Help> for more help on the image deployment "
 444                  "configuration tasks.",
 445             choices=choices, height=19, list_height=8, width=WIDTH,
 446             help_button=1, extra_button=1, extra_label="No Config",
 447             title="Exclude Configuration Tasks")
 448
 449         if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
 450             return False
 451         elif code == d.DIALOG_HELP:
 452             help_file = get_help_file("configuration_tasks")
 453             assert os.path.exists(help_file)
 454             d.textbox(help_file, title="Configuration Tasks",
 455                       width=70, height=40)
 456         # No Config button
 457         elif code == d.DIALOG_EXTRA:
 458             session['excluded_tasks'] = [-1]
 459             session['task_metadata'] = ["EXCLUDE_ALL_TASKS"]
 460             break
 461         elif code == d.DIALOG_OK:
 462             session['excluded_tasks'] = []
 463             for tag in tags:
 464                 session['excluded_tasks'].append(mapping[int(tag)])
 465
 466             exclude_metadata = []
 467             for task in session['excluded_tasks']:
 468                 exclude_metadata.extend(CONFIGURATION_TASKS[task][1])
 469
 470             session['task_metadata'] = map(lambda x: "EXCLUDE_TASK_%s" % x,
 471                                            exclude_metadata)
 472             break
 473
 474     return True
 475
 476
 477 def sysprep(session):
 478     d = session['dialog']
 479     image_os = session['image_os']
 480
 481     # Is the image already shrinked?
 482     if 'shrinked' in session and session['shrinked']:
 483         msg = "It seems you have shrinked the image. Running system " \
 484               "preparation tasks on a shrinked image is dangerous."
 485
 486         if d.yesno("%s\n\nDo you really want to continue?" % msg,
 487                    width=SMALL_WIDTH, defaultno=1):
 488             return
 489
 490     wrapper = textwrap.TextWrapper(width=WIDTH - 5)
 491
 492     help_title = "System Preperation Tasks"
 493     sysprep_help = "%s\n%s\n\n" % (help_title, '=' * len(help_title))
 494
 495     if 'exec_syspreps' not in session:
 496         session['exec_syspreps'] = []
 497
 498     all_syspreps = image_os.list_syspreps()
 499     # Only give the user the choice between syspreps that have not ran yet
 500     syspreps = [s for s in all_syspreps if s not in session['exec_syspreps']]
 501
 502     if len(syspreps) == 0:
 503         d.msgbox("No system preparation task available to run!",
 504                  title="System Preperation", width=SMALL_WIDTH)
 505         return
 506
 507     while 1:
 508         choices = []
 509         index = 0
 510         for sysprep in syspreps:
 511             name, descr = image_os.sysprep_info(sysprep)
 512             display_name = name.replace('-', ' ').capitalize()
 513             sysprep_help += "%s\n" % display_name
 514             sysprep_help += "%s\n" % ('-' * len(display_name))
 515             sysprep_help += "%s\n\n" % wrapper.fill(" ".join(descr.split()))
 516             enabled = 1 if sysprep.enabled else 0
 517             choices.append((str(index + 1), display_name, enabled))
 518             index += 1
 519
 520         (code, tags) = d.checklist(
 521             "Please choose which system preparation tasks you would like to "
 522             "run on the image. Press <Help> to see details about the system "
 523             "preparation tasks.", title="Run system preparation tasks",
 524             choices=choices, width=70, ok_label="Run", help_button=1)
 525
 526         if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
 527             return False
 528         elif code == d.DIALOG_HELP:
 529             d.scrollbox(sysprep_help, width=WIDTH)
 530         elif code == d.DIALOG_OK:
 531             # Enable selected syspreps and disable the rest
 532             for i in range(len(syspreps)):
 533                 if str(i + 1) in tags:
 534                     image_os.enable_sysprep(syspreps[i])
 535                     session['exec_syspreps'].append(syspreps[i])
 536                 else:
 537                     image_os.disable_sysprep(syspreps[i])
 538
 539             infobox = InfoBoxOutput(d, "Image Configuration")
 540             try:
 541                 dev = session['device']
 542                 dev.out.add(infobox)
 543                 try:
 544                     dev.mount(readonly=False)
 545                     try:
 546                         # The checksum is invalid. We have mounted the image rw
 547                         if 'checksum' in session:
 548                             del session['checksum']
 549
 550                         # Monitor the metadata changes during syspreps
 551                         with metadata_monitor(session, image_os.meta):
 552                             image_os.do_sysprep()
 553                             infobox.finalize()
 554
 555                         # Disable syspreps that have ran
 556                         for sysprep in session['exec_syspreps']:
 557                             image_os.disable_sysprep(sysprep)
 558                     finally:
 559                         dev.umount()
 560                 finally:
 561                     dev.out.remove(infobox)
 562             finally:
 563                 infobox.cleanup()
 564             break
 565     return True
 566
 567
 568 def shrink(session):
 569     d = session['dialog']
 570     dev = session['device']
 571
 572     shrinked = 'shrinked' in session and session['shrinked']
 573
 574     if shrinked:
 575         d.msgbox("The image is already shrinked!", title="Image Shrinking",
 576                  width=SMALL_WIDTH)
 577         return True
 578
 579     msg = "This operation will shrink the last partition of the image to " \
 580           "reduce the total image size. If the last partition is a swap " \
 581           "partition, then this partition is removed and the partition " \
 582           "before that is shrinked. The removed swap partition will be " \
 583           "recreated during image deployment."
 584
 585     if not d.yesno("%s\n\nDo you want to continue?" % msg, width=WIDTH,
 586                    height=12, title="Image Shrinking"):
 587         with metadata_monitor(session, dev.meta):
 588             infobox = InfoBoxOutput(d, "Image Shrinking", height=4)
 589             dev.out.add(infobox)
 590             try:
 591                 dev.shrink()
 592                 infobox.finalize()
 593             finally:
 594                 dev.out.remove(infobox)
 595
 596         session['shrinked'] = True
 597         update_background_title(session)
 598     else:
 599         return False
 600
 601     return True
 602
 603
 604 def customization_menu(session):
 605     d = session['dialog']
 606
 607     choices = [("Sysprep", "Run various image preparation tasks"),
 608                ("Shrink", "Shrink image"),
 609                ("View/Modify", "View/Modify image properties"),
 610                ("Delete", "Delete image properties"),
 611                ("Exclude", "Exclude various deployment tasks from running")]
 612
 613     default_item = 0
 614
 615     actions = {"Sysprep": sysprep,
 616                "Shrink": shrink,
 617                "View/Modify": modify_properties,
 618                "Delete": delete_properties,
 619                "Exclude": exclude_tasks}
 620     while 1:
 621         (code, choice) = d.menu(
 622             text="Choose one of the following or press <Back> to exit.",
 623             width=WIDTH, choices=choices, cancel="Back", height=13,
 624             menu_height=len(choices), default_item=choices[default_item][0],
 625             title="Image Customization Menu")
 626
 627         if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
 628             break
 629         elif choice in actions:
 630             default_item = [entry[0] for entry in choices].index(choice)
 631             if actions[choice](session):
 632                 default_item = (default_item + 1) % len(choices)
 633
 634
 635 def main_menu(session):
 636     d = session['dialog']
 637     dev = session['device']
 638
 639     update_background_title(session)
 640
 641     choices = [("Customize", "Customize image & ~okeanos deployment options"),
 642                ("Register", "Register image to ~okeanos"),
 643                ("Extract", "Dump image to local file system"),
 644                ("Reset", "Reset everything and start over again"),
 645                ("Help", "Get help for using snf-image-creator")]
 646
 647     default_item = "Customize"
 648
 649     actions = {"Customize": customization_menu, "Register": kamaki_menu,
 650                "Extract": extract_image}
 651     while 1:
 652         (code, choice) = d.menu(
 653             text="Choose one of the following or press <Exit> to exit.",
 654             width=WIDTH, choices=choices, cancel="Exit", height=13,
 655             default_item=default_item, menu_height=len(choices),
 656             title="Image Creator for ~okeanos (snf-image-creator version %s)" %
 657                   version)
 658
 659         if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
 660             if confirm_exit(d):
 661                 break
 662         elif choice == "Reset":
 663             if confirm_reset(d):
 664                 d.infobox("Resetting snf-image-creator. Please wait...",
 665                           width=SMALL_WIDTH)
 666                 raise Reset
 667         elif choice in actions:
 668             actions[choice](session)
 669
 670 # vim: set sta sts=4 shiftwidth=4 sw=4 et ai :