portal/manageuserview.py

   1 import os
   2 import re
   3 import itertools
   4 import json
   5
   6 from unfold.loginrequired               import LoginRequiredAutoLogoutView
   7
   8 from manifold.core.query                import Query
   9 from manifoldapi.manifoldapi            import execute_query, execute_admin_query
  10 from portal.actions                     import manifold_update_user, manifold_update_account, manifold_add_account, manifold_delete_account
  11 from portal.actions                     import (
  12     sfa_update_user, authority_get_pis, authority_add_pis,
  13     authority_remove_pis,authority_check_pis ,clear_user_creds )
  14
  15 from unfold.page                        import Page
  16 from ui.topmenu                         import topmenu_items_live, the_user
  17
  18 from django.http                        import HttpResponse, HttpResponseRedirect
  19 from django.contrib                     import messages
  20 from django.contrib.auth.decorators     import login_required
  21 from myslice.theme import ThemeView
  22
  23 # requires login
  24 class UserView(LoginRequiredAutoLogoutView, ThemeView):
  25     template_name = "manageuserview.html"
  26     def dispatch(self, *args, **kwargs):
  27         return super(UserView, self).dispatch(*args, **kwargs)
  28
  29
  30     def get_context_data(self, **kwargs):
  31
  32         page = Page(self.request)
  33         page.add_js_files  ( [ "js/jquery.validate.js", "js/my_account.register.js", "js/my_account.edit_profile.js", "js/jquery-ui.js" ] )
  34         page.add_css_files ( [ "css/onelab.css", "css/account_view.css","css/plugin.css","css/jquery-ui.css" ] )
  35
  36         for key, value in kwargs.iteritems():
  37             if key == "email":
  38                 selected_email=value
  39
  40         user_query  = Query().get('local:user').filter_by('email', '==', selected_email).select('user_id','config','email','status')
  41         user_details = execute_admin_query(self.request, user_query)
  42
  43         # not always found in user_details...
  44         config={}
  45         for user_detail in user_details:
  46             user_id = user_detail['user_id']
  47             user_email = user_detail['email']
  48             # different significations of user_status
  49             if user_detail['status'] == 0:
  50                 user_status = 'Disabled'
  51             elif user_detail['status'] == 1:
  52                 user_status = 'Validation Pending'
  53             elif user_detail['status'] == 2:
  54                 user_status = 'Enabled'
  55             else:
  56                 user_status = 'N/A'
  57             #email = user_detail['email']
  58             if user_detail['config']:
  59                 config = json.loads(user_detail['config'])
  60                 authority_hrn = config.get('authority','Unknown Authority')
  61
  62
  63         platform_query  = Query().get('local:platform').select('platform_id','platform','gateway_type','disabled')
  64         account_query  = Query().get('local:account').filter_by('user_id', '==', user_id).select('user_id','platform_id','auth_type','config')
  65         platform_details = execute_query(self.request, platform_query)
  66         account_details = execute_admin_query(self.request, account_query)
  67
  68         # initial assignment needed for users having account.config = {}
  69         platform_name = ''
  70         account_type = ''
  71         account_usr_hrn = ''
  72         account_pub_key = ''
  73         account_priv_key = ''
  74         account_reference = ''
  75         my_users = ''
  76         my_slices = ''
  77         my_auths = ''
  78         ref_acc_list = ''
  79         principal_acc_list = ''
  80         user_status_list = []
  81         platform_name_list = []
  82         platform_name_secondary_list = []
  83         platform_access_list = []
  84         platform_no_access_list = []
  85         total_platform_list = []
  86         account_type_list = []
  87         account_type_secondary_list = []
  88         account_reference_list = []
  89         delegation_type_list = []
  90         user_cred_exp_list = []
  91         slice_list = []
  92         auth_list = []
  93         slice_cred_exp_list = []
  94         auth_cred_exp_list = []
  95         usr_hrn_list = []
  96         pub_key_list = []
  97
  98         for platform_detail in platform_details:
  99             if 'sfa' in platform_detail['gateway_type']:
 100                 total_platform = platform_detail['platform']
 101                 total_platform_list.append(total_platform)
 102
 103             for account_detail in account_details:
 104                 if platform_detail['platform_id'] == account_detail['platform_id']:
 105                     platform_name = platform_detail['platform']
 106                     if 'config' in account_detail and account_detail['config'] is not '':
 107                         account_config = json.loads(account_detail['config'])
 108                         account_usr_hrn = account_config.get('user_hrn','N/A')
 109                         account_pub_key = account_config.get('user_public_key','N/A')
 110                         account_reference = account_config.get ('reference_platform','N/A')
 111
 112                     # credentials of myslice platform
 113                     if 'myslice' in platform_detail['platform']:
 114                         acc_user_cred = account_config.get('delegated_user_credential','N/A')
 115                         acc_slice_cred = account_config.get('delegated_slice_credentials','N/A')
 116                         acc_auth_cred = account_config.get('delegated_authority_credentials','N/A')
 117                         #usr_hrn of myslice platform. used to check pi or no
 118                         account_usr_hrn_myslice = account_config.get('user_hrn','N/A')
 119
 120
 121                         if 'N/A' not in acc_user_cred:
 122                             exp_date = re.search('<expires>(.*)</expires>', acc_user_cred)
 123                             if exp_date:
 124                                 user_exp_date = exp_date.group(1)
 125                                 user_cred_exp_list.append(user_exp_date)
 126
 127                             my_users = [{'cred_exp': t[0]}
 128                                 for t in zip(user_cred_exp_list)]
 129
 130
 131                         if 'N/A' not in acc_slice_cred:
 132                             for key, value in acc_slice_cred.iteritems():
 133                                 slice_list.append(key)
 134                                 # get cred_exp date
 135                                 exp_date = re.search('<expires>(.*)</expires>', value)
 136                                 if exp_date:
 137                                     exp_date = exp_date.group(1)
 138                                     slice_cred_exp_list.append(exp_date)
 139
 140                             my_slices = [{'slice_name': t[0], 'cred_exp': t[1]}
 141                                 for t in zip(slice_list, slice_cred_exp_list)]
 142
 143                         if 'N/A' not in acc_auth_cred:
 144                             for key, value in acc_auth_cred.iteritems():
 145                                 auth_list.append(key)
 146                                 #get cred_exp date
 147                                 exp_date = re.search('<expires>(.*)</expires>', value)
 148                                 if exp_date:
 149                                     exp_date = exp_date.group(1)
 150                                     auth_cred_exp_list.append(exp_date)
 151
 152                             my_auths = [{'auth_name': t[0], 'cred_exp': t[1]}
 153                                 for t in zip(auth_list, auth_cred_exp_list)]
 154
 155                     # for reference accounts
 156                     if 'reference' in account_detail['auth_type']:
 157                         account_type = 'Reference'
 158                         delegation = 'N/A'
 159                         platform_name_secondary_list.append(platform_name)
 160                         account_type_secondary_list.append(account_type)
 161                         account_reference_list.append(account_reference)
 162                         ref_acc_list = [{'platform_name': t[0], 'account_type': t[1], 'account_reference': t[2]}
 163                             for t in zip(platform_name_secondary_list, account_type_secondary_list, account_reference_list)]
 164
 165                     elif 'managed' in account_detail['auth_type']:
 166                         account_type = 'Principal'
 167                         delegation = 'Automatic'
 168                     else:
 169                         account_type = 'Principal'
 170                         delegation = 'Manual'
 171                     # for principal (auth_type=user/managed) accounts
 172                     if 'reference' not in account_detail['auth_type']:
 173                         platform_name_list.append(platform_name)
 174                         account_type_list.append(account_type)
 175                         delegation_type_list.append(delegation)
 176                         usr_hrn_list.append(account_usr_hrn)
 177                         pub_key_list.append(account_pub_key)
 178                         user_status_list.append(user_status)
 179                         # combining 5 lists into 1 [to render in the template]
 180                         principal_acc_list = [{'platform_name': t[0], 'account_type': t[1], 'delegation_type': t[2], 'usr_hrn':t[3], 'usr_pubkey':t[4], 'user_status':t[5],}
 181                             for t in zip(platform_name_list, account_type_list, delegation_type_list, usr_hrn_list, pub_key_list, user_status_list)]
 182                     # to hide private key row if it doesn't exist
 183                     if 'myslice' in platform_detail['platform']:
 184                         account_config = json.loads(account_detail['config'])
 185                         account_priv_key = account_config.get('user_private_key','N/A')
 186                     if 'sfa' in platform_detail['gateway_type']:
 187                         platform_access = platform_detail['platform']
 188                         platform_access_list.append(platform_access)
 189
 190         # Removing the platform which already has access
 191         for platform in platform_access_list:
 192             total_platform_list.remove(platform)
 193         # we could use zip. this one is used if columns have unequal rows
 194         platform_list = [{'platform_no_access': t[0]}
 195             for t in itertools.izip_longest(total_platform_list)]
 196
 197         ## check pi or no
 198         pi_status = self.request.session['user']['pi']
 199
 200         context = super(UserView, self).get_context_data(**kwargs)
 201         context['principal_acc'] = principal_acc_list
 202         context['ref_acc'] = ref_acc_list
 203         context['platform_list'] = platform_list
 204         context['my_users'] = my_users
 205         context['my_slices'] = my_slices
 206         context['my_auths'] = my_auths
 207         context['user_status'] = user_status
 208         context['user_email']   = user_email
 209         context['firstname'] = config.get('firstname',"?")
 210         context['lastname'] = config.get('lastname',"?")
 211         context['fullname'] = context['firstname'] +' '+ context['lastname']
 212         context['authority'] = config.get('authority',"Unknown Authority")
 213         context['user_private_key'] = account_priv_key
 214         context['pi'] = pi_status
 215
 216         # XXX This is repeated in all pages
 217         # more general variables expected in the template
 218         context['title'] = 'Platforms connected to MySlice'
 219         # the menu items on the top
 220         context['topmenu_items'] = topmenu_items_live('My Account', page)
 221         # so we can sho who is logged
 222         context['username'] = the_user(self.request)
 223         context['theme'] = self.theme
 224 #        context ['firstname'] = config['firstname']
 225         prelude_env = page.prelude_env()
 226         context.update(prelude_env)
 227         return context
 228
 229
 230 @login_required
 231 #my_acc form value processing
 232 def user_process(request, **kwargs):
 233
 234     for key, value in kwargs.iteritems():
 235         if key == "email":
 236             selected_email=value
 237
 238     redirect_url = "/portal/user/"+selected_email
 239
 240     user_query  = Query().get('local:user').filter_by('email', '==', selected_email).select('user_id','email','password','config')
 241     user_details = execute_admin_query(request, user_query)
 242
 243     # getting the user_id from the session
 244     for user_detail in user_details:
 245         user_id = user_detail['user_id']
 246         user_email = user_detail['email']
 247
 248     account_query  = Query().get('local:account').filter_by('user_id', '==', user_id).select('user_id','platform_id','auth_type','config')
 249     account_details = execute_admin_query(request, account_query)
 250
 251     platform_query  = Query().get('local:platform').select('platform_id','platform')
 252     platform_details = execute_admin_query(request, platform_query)
 253
 254
 255     for account_detail in account_details:
 256         for platform_detail in platform_details:
 257             # Add reference account to the platforms
 258             if 'add_'+platform_detail['platform'] in request.POST:
 259                 platform_id = platform_detail['platform_id']
 260                 user_params = {'platform_id': platform_id, 'user_id': user_id, 'auth_type': "reference", 'config': '{"reference_platform": "myslice"}'}
 261                 manifold_add_account(request, user_params)
 262                 messages.info(request, 'Reference Account is added to the selected platform successfully!')
 263                 return HttpResponseRedirect(redirect_url)
 264
 265             # Delete reference account from the platforms
 266             if 'delete_'+platform_detail['platform'] in request.POST:
 267                 platform_id = platform_detail['platform_id']
 268                 user_params = {'user_id':user_id}
 269                 manifold_delete_account(request, platform_id, user_id, user_params)
 270                 messages.info(request, 'Refeence Account is removed from the selected platform')
 271                 return HttpResponseRedirect(redirect_url)
 272
 273             if platform_detail['platform_id'] == account_detail['platform_id']:
 274                 if 'myslice' in platform_detail['platform']:
 275                     account_config = json.loads(account_detail['config'])
 276                     acc_slice_cred = account_config.get('delegated_slice_credentials','N/A')
 277                     acc_auth_cred = account_config.get('delegated_authority_credentials','N/A')
 278
 279                     # adding the slices and corresponding credentials to list
 280                     if 'N/A' not in acc_slice_cred:
 281                         slice_list = []
 282                         slice_cred = []
 283                         for key, value in acc_slice_cred.iteritems():
 284                             slice_list.append(key)
 285                             slice_cred.append(value)
 286                         # special case: download each slice credentials separately
 287                         for i in range(0, len(slice_list)):
 288                             if 'dl_'+slice_list[i] in request.POST:
 289                                 slice_detail = "Slice name: " + slice_list[i] +"\nSlice Credentials: \n"+ slice_cred[i]
 290                                 response = HttpResponse(slice_detail, content_type='text/plain')
 291                                 response['Content-Disposition'] = 'attachment; filename="slice_credential.txt"'
 292                                 return response
 293
 294                     # adding the authority and corresponding credentials to list
 295                     if 'N/A' not in acc_auth_cred:
 296                         auth_list = []
 297                         auth_cred = []
 298                         for key, value in acc_auth_cred.iteritems():
 299                             auth_list.append(key)
 300                             auth_cred.append(value)
 301                         # special case: download each slice credentials separately
 302                         for i in range(0, len(auth_list)):
 303                             if 'dl_'+auth_list[i] in request.POST:
 304                                 auth_detail = "Authority: " + auth_list[i] +"\nAuthority Credentials: \n"+ auth_cred[i]
 305                                 response = HttpResponse(auth_detail, content_type='text/plain')
 306                                 response['Content-Disposition'] = 'attachment; filename="auth_credential.txt"'
 307                                 return response
 308
 309     if 'submit_name' in request.POST:
 310         edited_first_name =  request.POST['fname']
 311         edited_last_name =  request.POST['lname']
 312
 313         config={}
 314         for user_config in user_details:
 315             if user_config['config']:
 316                 config = json.loads(user_config['config'])
 317                 config['firstname'] = edited_first_name
 318                 config['lastname'] = edited_last_name
 319                 config['authority'] = config.get('authority','Unknown Authority')
 320                 updated_config = json.dumps(config)
 321                 user_params = {'config': updated_config}
 322             else: # it's needed if the config is empty
 323                 user_config['config']= '{"firstname":"' + edited_first_name + '", "lastname":"'+ edited_last_name + '", "authority": "Unknown Authority"}'
 324                 user_params = {'config': user_config['config']}
 325         # updating config local:user in manifold
 326         manifold_update_user(request, user_email, user_params)
 327         # this will be depricated, we will show the success msg in same page
 328         # Redirect to same page with success message
 329         messages.success(request, 'Sucess: First Name and Last Name Updated.')
 330         return HttpResponseRedirect(redirect_url)
 331
 332     elif 'submit_auth' in request.POST:
 333         edited_auth = request.POST['authority']
 334
 335         config={}
 336         for user_config in user_details:
 337             if user_config['config']:
 338                 config = json.loads(user_config['config'])
 339                 config['firstname'] = config.get('firstname', 'N/A')
 340                 config['lastname'] = config.get('lastname','N/A')
 341                 config['authority'] = edited_auth
 342                 updated_config = json.dumps(config)
 343                 user_params = {'config': updated_config}
 344             else: # it's needed if the config is empty
 345                 user_config['config']= '{"firstname": "N/A", "lastname":"N/A", "authority":"' + edited_auth + '"}'
 346                 user_params = {'config': user_config['config']}
 347         # updating config local:user in manifold
 348         manifold_update_user(request, user_email, user_params)
 349         # this will be depricated, we will show the success msg in same page
 350         # Redirect to same page with success message
 351         messages.success(request, 'Sucess: Authority Updated.')
 352         return HttpResponseRedirect(redirect_url)
 353
 354 # XXX TODO: Factorize with portal/registrationview.py
 355
 356     elif 'generate' in request.POST:
 357         for account_detail in account_details:
 358             for platform_detail in platform_details:
 359                 if platform_detail['platform_id'] == account_detail['platform_id']:
 360                     if 'myslice' in platform_detail['platform']:
 361                         from Crypto.PublicKey import RSA
 362                         private = RSA.generate(1024)
 363                         private_key = json.dumps(private.exportKey())
 364                         public  = private.publickey()
 365                         public_key = json.dumps(public.exportKey(format='OpenSSH'))
 366                         # updating manifold local:account table
 367                         account_config = json.loads(account_detail['config'])
 368                         # preserving user_hrn
 369                         user_hrn = account_config.get('user_hrn','N/A')
 370                         keypair = '{"user_public_key":'+ public_key + ', "user_private_key":'+ private_key + ', "user_hrn":"'+ user_hrn + '"}'
 371                         updated_config = json.dumps(account_config)
 372                         # updating manifold
 373                         user_params = { 'config': keypair, 'auth_type':'managed'}
 374                         manifold_update_account(request, user_id, user_params)
 375                         # updating sfa
 376                         #public_key = public_key.replace('"', '');
 377                         #user_pub_key = {'keys': public_key}
 378                         #sfa_update_user(request, user_hrn, user_pub_key)
 379                         messages.success(request, 'Sucess: New Keypair Generated! Delegation of your credentials will be automatic.')
 380                         return HttpResponseRedirect(redirect_url)
 381         else:
 382             messages.error(request, 'Account error: You need an account in myslice platform to perform this action')
 383             return HttpResponseRedirect(redirect_url)
 384
 385     elif 'upload_key' in request.POST:
 386         for account_detail in account_details:
 387             for platform_detail in platform_details:
 388                 if platform_detail['platform_id'] == account_detail['platform_id']:
 389                     if 'myslice' in platform_detail['platform']:
 390                         up_file = request.FILES['pubkey']
 391                         file_content =  up_file.read()
 392                         file_name = up_file.name
 393                         file_extension = os.path.splitext(file_name)[1]
 394                         allowed_extension =  ['.pub','.txt']
 395                         if file_extension in allowed_extension and re.search(r'ssh-rsa',file_content):
 396                             account_config = json.loads(account_detail['config'])
 397                             # preserving user_hrn
 398                             user_hrn = account_config.get('user_hrn','N/A')
 399                             file_content = '{"user_public_key":"'+ file_content + '", "user_hrn":"'+ user_hrn +'"}'
 400                             #file_content = re.sub("\r", "", file_content)
 401                             #file_content = re.sub("\n", "\\n",file_content)
 402                             file_content = ''.join(file_content.split())
 403                             #update manifold local:account table
 404                             user_params = { 'config': file_content, 'auth_type':'user'}
 405                             manifold_update_account(request,user_id,user_params)
 406                             # updating sfa
 407                             #user_pub_key = {'keys': file_content}
 408                             #sfa_update_user(request, user_hrn, user_pub_key)
 409                             messages.success(request, 'Publickey uploaded! Please delegate your credentials using SFA: http://trac.myslice.info/wiki/DelegatingCredentials')
 410                             return HttpResponseRedirect(redirect_url)
 411                         else:
 412                             messages.error(request, 'RSA key error: Please upload a valid RSA public key [.txt or .pub].')
 413                             return HttpResponseRedirect(redirect_url)
 414         else:
 415             messages.error(request, 'Account error: You need an account in myslice platform to perform this action')
 416             return HttpResponseRedirect(redirect_url)
 417
 418     elif 'dl_pubkey' in request.POST:
 419         for account_detail in account_details:
 420             for platform_detail in platform_details:
 421                 if platform_detail['platform_id'] == account_detail['platform_id']:
 422                     if 'myslice' in platform_detail['platform']:
 423                         account_config = json.loads(account_detail['config'])
 424                         public_key = account_config['user_public_key']
 425                         response = HttpResponse(public_key, content_type='text/plain')
 426                         response['Content-Disposition'] = 'attachment; filename="pubkey.txt"'
 427                         return response
 428                         break
 429         else:
 430             messages.error(request, 'Account error: You need an account in myslice platform to perform this action')
 431             return HttpResponseRedirect(redirect_url)
 432
 433     elif 'dl_pkey' in request.POST:
 434         for account_detail in account_details:
 435             for platform_detail in platform_details:
 436                 if platform_detail['platform_id'] == account_detail['platform_id']:
 437                     if 'myslice' in platform_detail['platform']:
 438                         account_config = json.loads(account_detail['config'])
 439                         if 'user_private_key' in account_config:
 440                             private_key = account_config['user_private_key']
 441                             response = HttpResponse(private_key, content_type='text/plain')
 442                             response['Content-Disposition'] = 'attachment; filename="privkey.txt"'
 443                             return response
 444                         else:
 445                             messages.error(request, 'Download error: Private key is not stored in the server')
 446                             return HttpResponseRedirect(redirect_url)
 447
 448         else:
 449             messages.error(request, 'Account error: You need an account in myslice platform to perform this action')
 450             return HttpResponseRedirect(redirect_url)
 451
 452 #    elif 'delete' in request.POST:
 453 #        for account_detail in account_details:
 454 #            for platform_detail in platform_details:
 455 #                if platform_detail['platform_id'] == account_detail['platform_id']:
 456 #                    if 'myslice' in platform_detail['platform']:
 457 #                        account_config = json.loads(account_detail['config'])
 458 #                        if 'user_private_key' in account_config:
 459 #                            for key in account_config.keys():
 460 #                                if key == 'user_private_key':
 461 #                                    del account_config[key]
 462 #
 463 #                            updated_config = json.dumps(account_config)
 464 #                            user_params = { 'config': updated_config, 'auth_type':'user'}
 465 #                            manifold_update_account(request,user_params)
 466 #                            messages.success(request, 'Private Key deleted. You need to delegate credentials manually once it expires.')
 467 #                            messages.success(request, 'Once your credentials expire, Please delegate manually using SFA: http://trac.myslice.info/wiki/DelegatingCredentials')
 468 #                            return HttpResponseRedirect("/portal/account/")
 469 #                        else:
 470 #                            messages.error(request, 'Delete error: Private key is not stored in the server')
 471 #                            return HttpResponseRedirect(redirect_url)
 472 #
 473 #        else:
 474 #            messages.error(request, 'Account error: You need an account in myslice platform to perform this action')
 475 #            return HttpResponseRedirect(redirect_url)
 476
 477     #clear all creds
 478     elif 'clear_cred' in request.POST:
 479         clear_user_creds(request, user_email)
 480         messages.success(request, 'All Credentials cleared')
 481         return HttpResponseRedirect(redirect_url)
 482
 483     #make a user PI
 484     elif 'makepi' in request.POST:
 485         # getting user's authority_hrn
 486         config={}
 487         for user_config in user_details:
 488             if user_config['config']:
 489                 user_config = json.loads(user_config['config'])
 490                 authority_hrn = user_config.get('authority','Unknown Authority')
 491
 492         #getting user_hrn
 493         for account_detail in account_details:
 494             for platform_detail in platform_details:
 495                 if platform_detail['platform_id'] == account_detail['platform_id']:
 496                     if 'myslice' in platform_detail['platform']:
 497                         account_config = json.loads(account_detail['config'])
 498                         user_hrn = account_config.get('user_hrn','N/A')
 499
 500         authority_add_pis(request, authority_hrn, user_hrn)
 501         clear_user_creds(request, user_email)
 502         messages.success(request, 'User upgraded to PI')
 503         return HttpResponseRedirect(redirect_url)
 504
 505     elif 'removepi' in request.POST:
 506         # getting user's authority_hrn
 507         config={}
 508         for user_config in user_details:
 509             if user_config['config']:
 510                 user_config = json.loads(user_config['config'])
 511                 authority_hrn = user_config.get('authority','Unknown Authority')
 512         #getting user_hrn
 513         for account_detail in account_details:
 514             for platform_detail in platform_details:
 515                 if platform_detail['platform_id'] == account_detail['platform_id']:
 516                     if 'myslice' in platform_detail['platform']:
 517                         account_config = json.loads(account_detail['config'])
 518                         user_hrn = account_config.get('user_hrn','N/A')
 519         authority_remove_pis(request, authority_hrn, user_hrn)
 520         clear_user_creds(request, user_email)
 521         messages.success(request, 'PI downgraded to user')
 522         return HttpResponseRedirect(redirect_url)
 523
 524
 525
 526     # Download delegated_user_cred
 527     elif 'dl_user_cred' in request.POST:
 528         if 'delegated_user_credential' in account_config:
 529             user_cred = account_config['delegated_user_credential']
 530             response = HttpResponse(user_cred, content_type='text/plain')
 531             response['Content-Disposition'] = 'attachment; filename="user_cred.txt"'
 532             return response
 533         else:
 534             messages.error(request, 'Download error: User credential  is not stored in the server')
 535             return HttpResponseRedirect(redirect_url)
 536
 537     else:
 538         messages.info(request, 'Under Construction. Please try again later!')
 539         return HttpResponseRedirect(redirect_url)
 540
 541