portal/accountview.py

   1 from unfold.loginrequired               import LoginRequiredAutoLogoutView
   2 #
   3 from sfa.trust.credential               import Credential
   4 #
   5 from manifold.core.query                import Query
   6 from manifoldapi.manifoldapi            import execute_query
   7 from portal.actions                     import manifold_update_user, manifold_update_account, manifold_add_account, manifold_delete_account, sfa_update_user, sfa_get_user
   8 #
   9 from unfold.page                        import Page
  10 from ui.topmenu                         import topmenu_items_live, the_user
  11 #
  12 from django.http                        import HttpResponse, HttpResponseRedirect
  13 from django.contrib                     import messages
  14 from django.contrib.auth.decorators     import login_required
  15
  16 from myslice.theme import ThemeView
  17
  18 #
  19 import json, os, re, itertools
  20
  21 # requires login
  22 class AccountView(LoginRequiredAutoLogoutView, ThemeView):
  23     template_name = "account-view.html"
  24     def dispatch(self, *args, **kwargs):
  25         return super(AccountView, self).dispatch(*args, **kwargs)
  26
  27
  28     def get_context_data(self, **kwargs):
  29         self.template_name = self.template
  30         page = Page(self.request)
  31         page.add_js_files  ( [ "js/jquery.validate.js", "js/my_account.register.js", "js/my_account.edit_profile.js" ] )
  32         page.add_css_files ( [ "css/onelab.css", "css/account_view.css","css/plugin.css" ] )
  33
  34
  35         user_query  = Query().get('local:user').select('config','email','status')
  36         user_details = execute_query(self.request, user_query)
  37
  38         # not always found in user_details...
  39         config={}
  40         for user_detail in user_details:
  41             # different significations of user_status
  42             if user_detail['status'] == 0:
  43                 user_status = 'Disabled'
  44             elif user_detail['status'] == 1:
  45                 user_status = 'Validation Pending'
  46             elif user_detail['status'] == 2:
  47                 user_status = 'Enabled'
  48             else:
  49                 user_status = 'N/A'
  50             #email = user_detail['email']
  51             if user_detail['config']:
  52                 config = json.loads(user_detail['config'])
  53
  54         platform_query  = Query().get('local:platform').select('platform_id','platform','gateway_type','disabled')
  55         account_query  = Query().get('local:account').select('user_id','platform_id','auth_type','config')
  56         platform_details = execute_query(self.request, platform_query)
  57         account_details = execute_query(self.request, account_query)
  58
  59         # initial assignment needed for users having account.config = {}
  60         platform_name = ''
  61         account_type = ''
  62         account_usr_hrn = ''
  63         account_pub_key = ''
  64         account_priv_key = ''
  65         account_reference = ''
  66         my_users = ''
  67         my_slices = ''
  68         my_auths = ''
  69         ref_acc_list = ''
  70         principal_acc_list = ''
  71         user_status_list = []
  72         platform_name_list = []
  73         platform_name_secondary_list = []
  74         platform_access_list = []
  75         platform_no_access_list = []
  76         total_platform_list = []
  77         account_type_list = []
  78         account_type_secondary_list = []
  79         account_reference_list = []
  80         delegation_type_list = []
  81         user_cred_exp_list = []
  82         slice_list = []
  83         auth_list = []
  84         slice_cred_exp_list = []
  85         auth_cred_exp_list = []
  86         usr_hrn_list = []
  87         pub_key_list = []
  88
  89         for platform_detail in platform_details:
  90             if 'sfa' in platform_detail['gateway_type']:
  91                 total_platform = platform_detail['platform']
  92                 total_platform_list.append(total_platform)
  93
  94             for account_detail in account_details:
  95                 if platform_detail['platform_id'] == account_detail['platform_id']:
  96                     platform_name = platform_detail['platform']
  97                     if 'config' in account_detail and account_detail['config'] is not '':
  98                         account_config = json.loads(account_detail['config'])
  99                         account_usr_hrn = account_config.get('user_hrn','N/A')
 100                         account_pub_key = account_config.get('user_public_key','N/A')
 101                         account_reference = account_config.get ('reference_platform','N/A')
 102                     # credentials of myslice platform
 103                     if 'myslice' in platform_detail['platform']:
 104                         acc_user_cred = account_config.get('delegated_user_credential','N/A')
 105                         acc_slice_cred = account_config.get('delegated_slice_credentials','N/A')
 106                         acc_auth_cred = account_config.get('delegated_authority_credentials','N/A')
 107
 108                         if 'N/A' not in acc_user_cred:
 109                             exp_date = re.search('<expires>(.*)</expires>', acc_user_cred)
 110                             if exp_date:
 111                                 user_exp_date = exp_date.group(1)
 112                                 user_cred_exp_list.append(user_exp_date)
 113
 114                             my_users = [{'cred_exp': t[0]}
 115                                 for t in zip(user_cred_exp_list)]
 116
 117
 118                         if 'N/A' not in acc_slice_cred:
 119                             for key, value in acc_slice_cred.iteritems():
 120                                 slice_list.append(key)
 121                                 # get cred_exp date
 122                                 exp_date = re.search('<expires>(.*)</expires>', value)
 123                                 if exp_date:
 124                                     exp_date = exp_date.group(1)
 125                                     slice_cred_exp_list.append(exp_date)
 126
 127                             my_slices = [{'slice_name': t[0], 'cred_exp': t[1]}
 128                                 for t in zip(slice_list, slice_cred_exp_list)]
 129
 130                         if 'N/A' not in acc_auth_cred:
 131                             for key, value in acc_auth_cred.iteritems():
 132                                 auth_list.append(key)
 133                                 #get cred_exp date
 134                                 exp_date = re.search('<expires>(.*)</expires>', value)
 135                                 if exp_date:
 136                                     exp_date = exp_date.group(1)
 137                                     auth_cred_exp_list.append(exp_date)
 138
 139                             my_auths = [{'auth_name': t[0], 'cred_exp': t[1]}
 140                                 for t in zip(auth_list, auth_cred_exp_list)]
 141
 142
 143                     # for reference accounts
 144                     if 'reference' in account_detail['auth_type']:
 145                         account_type = 'Reference'
 146                         delegation = 'N/A'
 147                         platform_name_secondary_list.append(platform_name)
 148                         account_type_secondary_list.append(account_type)
 149                         account_reference_list.append(account_reference)
 150                         ref_acc_list = [{'platform_name': t[0], 'account_type': t[1], 'account_reference': t[2]}
 151                             for t in zip(platform_name_secondary_list, account_type_secondary_list, account_reference_list)]
 152
 153                     elif 'managed' in account_detail['auth_type']:
 154                         account_type = 'Principal'
 155                         delegation = 'Automatic'
 156                     else:
 157                         account_type = 'Principal'
 158                         delegation = 'Manual'
 159                     # for principal (auth_type=user/managed) accounts
 160                     if 'reference' not in account_detail['auth_type']:
 161                         platform_name_list.append(platform_name)
 162                         account_type_list.append(account_type)
 163                         delegation_type_list.append(delegation)
 164                         usr_hrn_list.append(account_usr_hrn)
 165                         pub_key_list.append(account_pub_key)
 166                         user_status_list.append(user_status)
 167                         # combining 5 lists into 1 [to render in the template]
 168                         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],}
 169                             for t in zip(platform_name_list, account_type_list, delegation_type_list, usr_hrn_list, pub_key_list, user_status_list)]
 170                     # to hide private key row if it doesn't exist
 171                     if 'myslice' in platform_detail['platform']:
 172                         account_config = json.loads(account_detail['config'])
 173                         account_priv_key = account_config.get('user_private_key','N/A')
 174                     if 'sfa' in platform_detail['gateway_type']:
 175                         platform_access = platform_detail['platform']
 176                         platform_access_list.append(platform_access)
 177
 178         # Removing the platform which already has access
 179         for platform in platform_access_list:
 180             total_platform_list.remove(platform)
 181         # we could use zip. this one is used if columns have unequal rows
 182         platform_list = [{'platform_no_access': t[0]}
 183             for t in itertools.izip_longest(total_platform_list)]
 184         context = super(AccountView, self).get_context_data(**kwargs)
 185         context['principal_acc'] = principal_acc_list
 186         context['ref_acc'] = ref_acc_list
 187         context['platform_list'] = platform_list
 188         context['my_users'] = my_users
 189         context['my_slices'] = my_slices
 190         context['my_auths'] = my_auths
 191         context['user_status'] = user_status
 192         context['person']   = self.request.user
 193         context['firstname'] = config.get('firstname',"?")
 194         context['lastname'] = config.get('lastname',"?")
 195         context['fullname'] = context['firstname'] +' '+ context['lastname']
 196         context['authority'] = config.get('authority',"Unknown Authority")
 197         context['user_private_key'] = account_priv_key
 198
 199         # XXX This is repeated in all pages
 200         # more general variables expected in the template
 201         context['title'] = 'Platforms connected to MySlice'
 202         # the menu items on the top
 203         context['topmenu_items'] = topmenu_items_live('My Account', page)
 204         # so we can sho who is logged
 205         context['username'] = the_user(self.request)
 206         context['theme'] = self.theme
 207         context['section'] = "User account"
 208 #        context ['firstname'] = config['firstname']
 209         prelude_env = page.prelude_env()
 210         context.update(prelude_env)
 211         return context
 212
 213
 214 @login_required
 215 #my_acc form value processing
 216 def account_process(request):
 217     user_query  = Query().get('local:user').select('user_id','email','password','config')
 218     user_details = execute_query(request, user_query)
 219
 220     account_query  = Query().get('local:account').select('user_id','platform_id','auth_type','config')
 221     account_details = execute_query(request, account_query)
 222
 223     platform_query  = Query().get('local:platform').select('platform_id','platform')
 224     platform_details = execute_query(request, platform_query)
 225
 226     # getting the user_id from the session
 227     for user_detail in user_details:
 228             user_id = user_detail['user_id']
 229
 230     for account_detail in account_details:
 231         for platform_detail in platform_details:
 232             # Add reference account to the platforms
 233             if 'add_'+platform_detail['platform'] in request.POST:
 234                 platform_id = platform_detail['platform_id']
 235                 user_params = {'platform_id': platform_id, 'user_id': user_id, 'auth_type': "reference", 'config': '{"reference_platform": "myslice"}'}
 236                 manifold_add_account(request,user_params)
 237                 messages.info(request, 'Reference Account is added to the selected platform successfully!')
 238                 return HttpResponseRedirect("/portal/account/")
 239
 240             # Delete reference account from the platforms
 241             if 'delete_'+platform_detail['platform'] in request.POST:
 242                 platform_id = platform_detail['platform_id']
 243                 user_params = {'user_id':user_id}
 244                 manifold_delete_account(request,platform_id, user_id, user_params)
 245                 messages.info(request, 'Reference Account is removed from the selected platform')
 246                 return HttpResponseRedirect("/portal/account/")
 247
 248             if platform_detail['platform_id'] == account_detail['platform_id']:
 249                 if 'myslice' in platform_detail['platform']:
 250                     account_config = json.loads(account_detail['config'])
 251                     acc_slice_cred = account_config.get('delegated_slice_credentials','N/A')
 252                     acc_auth_cred = account_config.get('delegated_authority_credentials','N/A')
 253
 254
 255
 256
 257     # adding the slices and corresponding credentials to list
 258     if 'N/A' not in acc_slice_cred:
 259         slice_list = []
 260         slice_cred = []
 261         for key, value in acc_slice_cred.iteritems():
 262             slice_list.append(key)
 263             slice_cred.append(value)
 264         # special case: download each slice credentials separately
 265         for i in range(0, len(slice_list)):
 266             if 'dl_'+slice_list[i] in request.POST:
 267                 slice_detail = "Slice name: " + slice_list[i] +"\nSlice Credentials: \n"+ slice_cred[i]
 268                 response = HttpResponse(slice_detail, content_type='text/plain')
 269                 response['Content-Disposition'] = 'attachment; filename="slice_credential.txt"'
 270                 return response
 271
 272     # adding the authority and corresponding credentials to list
 273     if 'N/A' not in acc_auth_cred:
 274         auth_list = []
 275         auth_cred = []
 276         for key, value in acc_auth_cred.iteritems():
 277             auth_list.append(key)
 278             auth_cred.append(value)
 279         # special case: download each slice credentials separately
 280         for i in range(0, len(auth_list)):
 281             if 'dl_'+auth_list[i] in request.POST:
 282                 auth_detail = "Authority: " + auth_list[i] +"\nAuthority Credentials: \n"+ auth_cred[i]
 283                 response = HttpResponse(auth_detail, content_type='text/plain')
 284                 response['Content-Disposition'] = 'attachment; filename="auth_credential.txt"'
 285                 return response
 286
 287
 288
 289     if 'submit_name' in request.POST:
 290         edited_first_name =  request.POST['fname']
 291         edited_last_name =  request.POST['lname']
 292
 293         config={}
 294         for user_config in user_details:
 295             if user_config['config']:
 296                 config = json.loads(user_config['config'])
 297                 config['firstname'] = edited_first_name
 298                 config['lastname'] = edited_last_name
 299                 config['authority'] = config.get('authority','Unknown Authority')
 300                 updated_config = json.dumps(config)
 301                 user_params = {'config': updated_config}
 302             else: # it's needed if the config is empty
 303                 user_config['config']= '{"firstname":"' + edited_first_name + '", "lastname":"'+ edited_last_name + '", "authority": "Unknown Authority"}'
 304                 user_params = {'config': user_config['config']}
 305         # updating config local:user in manifold
 306         manifold_update_user(request, request.user.email,user_params)
 307         # this will be depricated, we will show the success msg in same page
 308         # Redirect to same page with success message
 309         messages.success(request, 'Sucess: First Name and Last Name Updated.')
 310         return HttpResponseRedirect("/portal/account/")
 311
 312     elif 'submit_pass' in request.POST:
 313         edited_password = request.POST['password']
 314
 315         for user_pass in user_details:
 316             user_pass['password'] = edited_password
 317         #updating password in local:user
 318         user_params = { 'password': user_pass['password']}
 319         manifold_update_user(request,request.user.email,user_params)
 320 #        return HttpResponse('Success: Password Changed!!')
 321         messages.success(request, 'Sucess: Password Updated.')
 322         return HttpResponseRedirect("/portal/account/")
 323
 324 # XXX TODO: Factorize with portal/registrationview.py
 325
 326     elif 'generate' in request.POST:
 327         for account_detail in account_details:
 328             for platform_detail in platform_details:
 329                 if platform_detail['platform_id'] == account_detail['platform_id']:
 330                     if 'myslice' in platform_detail['platform']:
 331                         from Crypto.PublicKey import RSA
 332                         private = RSA.generate(1024)
 333                         private_key = json.dumps(private.exportKey())
 334                         public  = private.publickey()
 335                         public_key = json.dumps(public.exportKey(format='OpenSSH'))
 336                         # updating manifold local:account table
 337                         account_config = json.loads(account_detail['config'])
 338                         # preserving user_hrn
 339                         user_hrn = account_config.get('user_hrn','N/A')
 340                         keypair = '{"user_public_key":'+ public_key + ', "user_private_key":'+ private_key + ', "user_hrn":"'+ user_hrn + '"}'
 341                         #updated_config = json.dumps(account_config)
 342                         # updating manifold
 343                         #user_params = { 'config': keypair, 'auth_type':'managed'}
 344                         #manifold_update_account(request, user_id, user_params)
 345                         # updating sfa
 346                         public_key = public_key.replace('"', '');
 347                         user_pub_key = {'keys': public_key}
 348                         #sfa_update_user(request, user_hrn, user_pub_key)
 349                         sfa_update_user(request, user_hrn, user_pub_key)
 350                         result_sfa_user = sfa_get_user(request, user_hrn, public_key)
 351                         try:
 352                             result_sfa_user = result_sfa_user[0]
 353                             if 'keys' in result_sfa_user and result_sfa_user['keys'][0] == public_key:
 354                                 # updating manifold
 355                                 updated_config = json.dumps(account_config)
 356                                 user_params = { 'config': keypair, 'auth_type':'managed'}
 357                                 manifold_update_account(request, user_id, user_params)
 358                                 messages.success(request, 'Sucess: New Keypair Generated! Delegation of your credentials will be automatic.')
 359                             else:
 360                                 raise Exception,"Keys are not matching"
 361                         except Exception,e:
 362                             messages.error(request, 'Error: An error occured during the update of your public key at the Registry, or your public key is not matching the one stored.')
 363                         return HttpResponseRedirect("/portal/account/")
 364         else:
 365             messages.error(request, 'Account error: You need an account in myslice platform to perform this action')
 366             return HttpResponseRedirect("/portal/account/")
 367
 368     elif 'upload_key' in request.POST:
 369         for account_detail in account_details:
 370             for platform_detail in platform_details:
 371                 if platform_detail['platform_id'] == account_detail['platform_id']:
 372                     if 'myslice' in platform_detail['platform']:
 373                         up_file = request.FILES['pubkey']
 374                         file_content =  up_file.read()
 375                         file_name = up_file.name
 376                         file_extension = os.path.splitext(file_name)[1]
 377                         allowed_extension =  ['.pub','.txt']
 378                         if file_extension in allowed_extension and re.search(r'ssh-rsa',file_content):
 379                             account_config = json.loads(account_detail['config'])
 380                             # preserving user_hrn
 381                             user_hrn = account_config.get('user_hrn','N/A')
 382                             file_content = '{"user_public_key":"'+ file_content + '", "user_hrn":"'+ user_hrn +'"}'
 383                             #file_content = re.sub("\r", "", file_content)
 384                             #file_content = re.sub("\n", "\\n",file_content)
 385                             file_content = ''.join(file_content.split())
 386                             #update manifold local:account table
 387                             user_params = { 'config': file_content, 'auth_type':'user'}
 388                             manifold_update_account(request, user_id, user_params)
 389                             # updating sfa
 390                             user_pub_key = {'keys': file_content}
 391                             sfa_update_user(request, user_hrn, user_pub_key)
 392                             messages.success(request, 'Publickey uploaded! Please delegate your credentials using SFA: http://trac.myslice.info/wiki/DelegatingCredentials')
 393                             return HttpResponseRedirect("/portal/account/")
 394                         else:
 395                             messages.error(request, 'RSA key error: Please upload a valid RSA public key [.txt or .pub].')
 396                             return HttpResponseRedirect("/portal/account/")
 397         else:
 398             messages.error(request, 'Account error: You need an account in myslice platform to perform this action')
 399             return HttpResponseRedirect("/portal/account/")
 400
 401     elif 'dl_pubkey' in request.POST:
 402         for account_detail in account_details:
 403             for platform_detail in platform_details:
 404                 if platform_detail['platform_id'] == account_detail['platform_id']:
 405                     if 'myslice' in platform_detail['platform']:
 406                         account_config = json.loads(account_detail['config'])
 407                         public_key = account_config['user_public_key']
 408                         response = HttpResponse(public_key, content_type='text/plain')
 409                         response['Content-Disposition'] = 'attachment; filename="pubkey.txt"'
 410                         return response
 411                         break
 412         else:
 413             messages.error(request, 'Account error: You need an account in myslice platform to perform this action')
 414             return HttpResponseRedirect("/portal/account/")
 415
 416     elif 'dl_pkey' in request.POST:
 417         for account_detail in account_details:
 418             for platform_detail in platform_details:
 419                 if platform_detail['platform_id'] == account_detail['platform_id']:
 420                     if 'myslice' in platform_detail['platform']:
 421                         account_config = json.loads(account_detail['config'])
 422                         if 'user_private_key' in account_config:
 423                             private_key = account_config['user_private_key']
 424                             response = HttpResponse(private_key, content_type='text/plain')
 425                             response['Content-Disposition'] = 'attachment; filename="privkey.txt"'
 426                             return response
 427                         else:
 428                             messages.error(request, 'Download error: Private key is not stored in the server')
 429                             return HttpResponseRedirect("/portal/account/")
 430
 431         else:
 432             messages.error(request, 'Account error: You need an account in myslice platform to perform this action')
 433             return HttpResponseRedirect("/portal/account/")
 434
 435     elif 'delete' in request.POST:
 436         for account_detail in account_details:
 437             for platform_detail in platform_details:
 438                 if platform_detail['platform_id'] == account_detail['platform_id']:
 439                     if 'myslice' in platform_detail['platform']:
 440                         account_config = json.loads(account_detail['config'])
 441                         if 'user_private_key' in account_config:
 442                             for key in account_config.keys():
 443                                 if key == 'user_private_key':
 444                                     del account_config[key]
 445
 446                             updated_config = json.dumps(account_config)
 447                             user_params = { 'config': updated_config, 'auth_type':'user'}
 448                             manifold_update_account(request, user_id, user_params)
 449                             messages.success(request, 'Private Key deleted. You need to delegate credentials manually once it expires.')
 450                             messages.success(request, 'Once your credentials expire, Please delegate manually using SFA: http://trac.myslice.info/wiki/DelegatingCredentials')
 451                             return HttpResponseRedirect("/portal/account/")
 452                         else:
 453                             messages.error(request, 'Delete error: Private key is not stored in the server')
 454                             return HttpResponseRedirect("/portal/account/")
 455
 456         else:
 457             messages.error(request, 'Account error: You need an account in myslice platform to perform this action')
 458             return HttpResponseRedirect("/portal/account/")
 459
 460     # download identity for jfed
 461     elif 'dl_identity' in request.POST:
 462         for account_detail in account_details:
 463             for platform_detail in platform_details:
 464                 if platform_detail['platform_id'] == account_detail['platform_id']:
 465                     if 'myslice' in platform_detail['platform']:
 466                         account_config = json.loads(account_detail['config'])
 467                         if 'user_private_key' in account_config:
 468                             private_key = account_config['user_private_key']
 469                             user_hrn = account_config.get('user_hrn','N/A')
 470                             registry = 'http://sfa-fed4fire.pl.sophia.inria.fr:12345/'
 471                             jfed_identity = user_hrn + '\n' + registry + '\n' + private_key
 472                             response = HttpResponse(jfed_identity, content_type='text/plain')
 473                             response['Content-Disposition'] = 'attachment; filename="jfed_identity.txt"'
 474                             return response
 475                         else:
 476                             messages.error(request, 'Download error: Private key is not stored in the server')
 477                             return HttpResponseRedirect("/portal/account/")
 478
 479         else:
 480             messages.error(request, 'Account error: You need an account in myslice platform to perform this action')
 481             return HttpResponseRedirect("/portal/account/")
 482
 483     #clear all creds
 484     elif 'clear_cred' in request.POST:
 485         for account_detail in account_details:
 486             for platform_detail in platform_details:
 487                 if platform_detail['platform_id'] == account_detail['platform_id']:
 488                     if 'myslice' in platform_detail['platform']:
 489                         account_config = json.loads(account_detail['config'])
 490                         user_cred = account_config.get('delegated_user_credential','N/A')
 491                         if 'N/A' not in user_cred:
 492                             user_hrn = account_config.get('user_hrn','N/A')
 493                             user_pub_key = json.dumps(account_config.get('user_public_key','N/A'))
 494                             user_priv_key = json.dumps(account_config.get('user_private_key','N/A'))
 495                             updated_config = '{"user_public_key":'+ user_pub_key + ', "user_private_key":'+ user_priv_key + ', "user_hrn":"'+ user_hrn + '"}'
 496                             user_params = { 'config': updated_config}
 497                             manifold_update_account(request,user_id, user_params)
 498                             messages.success(request, 'All Credentials cleared')
 499                             return HttpResponseRedirect("/portal/account/")
 500                         else:
 501                             messages.error(request, 'Delete error: Credentials are not stored in the server')
 502                             return HttpResponseRedirect("/portal/account/")
 503         else:
 504             messages.error(request, 'Account error: You need an account in myslice platform to perform this action')
 505             return HttpResponseRedirect("/portal/account/")
 506
 507
 508     # Download delegated_user_cred
 509     elif 'dl_user_cred' in request.POST:
 510         if 'delegated_user_credential' in account_config:
 511             user_cred = account_config['delegated_user_credential']
 512             response = HttpResponse(user_cred, content_type='text/plain')
 513             response['Content-Disposition'] = 'attachment; filename="user_cred.txt"'
 514             return response
 515         else:
 516             messages.error(request, 'Download error: User credential  is not stored in the server')
 517             return HttpResponseRedirect("/portal/account/")
 518
 519     # Download user_cert
 520     elif 'dl_user_cert' in request.POST:
 521         if 'user_credential' in account_config:
 522             user_cred = account_config['user_credential']
 523             obj_cred = Credential(string=user_cred)
 524             obj_gid = obj_cred.get_gid_object()
 525             str_cert = obj_gid.save_to_string()
 526             response = HttpResponse(str_cert, content_type='text/plain')
 527             response['Content-Disposition'] = 'attachment; filename="user_certificate.pem"'
 528             return response
 529
 530         elif 'delegated_user_credential' in account_config:
 531             user_cred = account_config['delegated_user_credential']
 532             obj_cred = Credential(string=user_cred)
 533             obj_gid = obj_cred.get_gid_object()
 534             str_cert = obj_gid.save_to_string()
 535             response = HttpResponse(str_cert, content_type='text/plain')
 536             response['Content-Disposition'] = 'attachment; filename="user_certificate.pem"'
 537             return response
 538         else:
 539             messages.error(request, 'Download error: User credential  is not stored in the server')
 540             return HttpResponseRedirect("/portal/account/")
 541
 542     else:
 543         messages.info(request, 'Under Construction. Please try again later!')
 544         return HttpResponseRedirect("/portal/account/")
 545
 546