portal/actions.py

   1 from django.http                import HttpResponse
   2 from manifold.core.query        import Query
   3 from manifoldapi.manifoldapi    import execute_query,execute_admin_query
   4 from portal.models              import PendingUser, PendingSlice, PendingAuthority
   5 import json
   6
   7 from django.contrib.auth.models import User
   8 from django.template.loader     import render_to_string
   9 from django.core.mail           import EmailMultiAlternatives, send_mail
  10
  11 from myslice.theme              import ThemeView
  12
  13 theme = ThemeView()
  14
  15 # Thierry: moving this right into the code so
  16 # most people can use myslice without having to install sfa
  17 # XXX tmp sfa dependency, should be moved to SFA gateway
  18 #from sfa.util.xrn                import Xrn
  19
  20
  21 # Get the list of authorities
  22
  23 def authority_get_pis(request, authority_hrn):
  24     query = Query.get('authority').filter_by('authority_hrn', '==', authority_hrn).select('pi_users')
  25     results = execute_admin_query(request, query)
  26     print "authority_get_pis = %s" % results
  27     # NOTE: temporarily commented. Because results is giving empty list.
  28     # Needs more debugging
  29     #if not results:
  30     #    raise Exception, "Authority not found: %s" % authority_hrn
  31     #result, = results
  32     #return result['pi_users']
  33     return results
  34
  35 def authority_get_pi_emails(request, authority_hrn):
  36     pi_users = authority_get_pis(request,authority_hrn)
  37     print "pi_users = %s" % pi_users
  38
  39     if any(d['pi_users'] == None for d in pi_users):
  40         #theme.template_name = 'email_default_recipients.txt'
  41         #default_email = render_to_string(theme.template, request)
  42         #default_email = default_email.replace('\n', '')
  43         #return default_email
  44         # the above doesn't work
  45         return ['support@myslice.info']
  46     else:
  47         pi_user_hrns = [ hrn for x in pi_users for hrn in x['pi_users'] ]
  48         query = Query.get('user').filter_by('user_hrn', 'included', pi_user_hrns).select('user_email')
  49         results = execute_admin_query(request, query)
  50         return [result['user_email'] for result in results]
  51
  52 def is_pi(wsgi_request, user_hrn, authority_hrn):
  53     # XXX could be done in a single query !
  54
  55     # select pi_authorities from user where user_hrn == "ple.upmc.jordan_auge"
  56     query = Query.get('user').filter_by('user_hrn', '==', user_hrn).select('pi_authorities')
  57     results = execute_admin_query(wsgi_request, query)
  58     if not results:
  59         # XXX Warning ?
  60         return False
  61     result = results[0]
  62     user_authority_hrns = result.get('pi_authorities', [])
  63     return authority_hrn in user_authority_hrns
  64
  65 # SFA get record
  66
  67 def sfa_get_user(request, user_hrn, pub):
  68     query_sfa_user = Query.get('user').filter_by('user_hrn', '==', user_hrn)
  69     result_sfa_user = execute_query(request, query_sfa_user)
  70     return result_sfa_user
  71
  72 def sfa_update_user(request, user_hrn, user_params):
  73     # user_params: keys [public_key]
  74     if 'email' in user_params:
  75         user_params['user_email'] = user_params['email']
  76     query = Query.update('user').filter_by('user_hrn', '==', user_hrn).set(user_params).select('user_hrn')
  77     results = execute_query(request,query)
  78     return results
  79
  80 def sfa_add_authority(request, authority_params):
  81     query = Query.create('authority').set(authority_params).select('authority_hrn')
  82     results = execute_query(request, query)
  83     print "sfa_add_auth results=",results
  84     if not results:
  85         raise Exception, "Could not create %s. Already exists ?" % authority_params['hrn']
  86     return results
  87
  88 def sfa_add_user_to_slice(request, user_hrn, slice_params):
  89 # UPDATE myslice:slice SET researcher=['ple.upmc.jordan_auge','ple.inria.thierry_parmentelat','ple.upmc.loic_baron','ple.upmc.ciro_scognamiglio','ple.upmc.mohammed-yasin_rahman','ple.upmc.azerty'] where slice_hrn=='ple.upmc.myslicedemo'
  90     query_current_users = Query.get('slice').select('user').filter_by('slice_hrn','==',slice_params['hrn'])
  91     results_current_users = execute_query(request, query_current_users)
  92     slice_params['researcher'] = slice_params['researcher'] | results_current_users
  93     query = Query.update('slice').filter_by('user_hrn', '==', user_hrn).set(slice_params).select('slice_hrn')
  94     results = execute_query(request, query)
  95 # Also possible but not supported yet
  96 # UPDATE myslice:user SET slice=['ple.upmc.agent','ple.upmc.myslicedemo','ple.upmc.tophat'] where user_hrn=='ple.upmc.azerty'
  97     if not results:
  98         raise Exception, "Could not create %s. Already exists ?" % slice_params['hrn']
  99     return results
 100
 101 # Propose hrn
 102
 103 def manifold_add_user(wsgi_request, request):
 104     """Add a Manifold user corresponding to a user request.
 105
 106     Args:
 107         wsgi_request: a WSGIRequest instance
 108         request (dict): a dictionary containing the user request built from the
 109             form.
 110
 111     Returns:
 112         The user_id of the inserted user.
 113
 114     Raises:
 115         ?
 116
 117     """
 118     USER_CONFIG = '{"firstname": "%(first_name)s", "lastname": "%(last_name)s", "authority": "%(authority_hrn)s"}'
 119
 120     user_params = {
 121         'email'     : request['email'],
 122         'password'  : request['password'],
 123         'config'    : USER_CONFIG % request,
 124         'status'    : 1,
 125     }
 126
 127     query = Query.create('local:user').set(user_params).select('email')
 128     results = execute_admin_query(request, query)
 129     if not results:
 130         raise Exception, "Failed creating manifold user: %s" % user_params['email']
 131     result = results[0]
 132     return result['email']
 133
 134 def manifold_update_user(request, email, user_params):
 135     # user_params: password, config e.g.,
 136     query = Query.update('local:user').filter_by('email', '==', email).set(user_params).select('email')
 137     results = execute_admin_query(request,query)
 138     # NOTE: results remains empty and goes to Exception. However, it updates the manifold DB.
 139     # That's why I commented the exception part. -- Yasin
 140     #if not results:
 141     #    raise Exception, "Failed updating manifold user: %s" % user_params['email']
 142     #result, = results
 143     return results
 144
 145 def manifold_add_account(request, account_params):
 146     query = Query.create('local:account').set(account_params).select(['user', 'platform'])
 147     results = execute_admin_query(request,query)
 148     if not results:
 149         raise Exception, "Failed creating manifold account on platform %s for user: %s" % (account_params['platform'], account_params['user'])
 150     result, = results
 151     return result['user_id']
 152
 153 def manifold_update_account(request,user_id,account_params):
 154     # account_params: config
 155     query = Query.update('local:account').filter_by('platform', '==', 'myslice').filter_by('user_id', '==', user_id).set(account_params).select('user_id')
 156     results = execute_admin_query(request,query)
 157     return results
 158
 159 #explicitly mention the platform_id
 160 def manifold_delete_account(request, platform_id, user_id, account_params):
 161     query = Query.delete('local:account').filter_by('platform_id', '==', platform_id).filter_by('user_id', '==', user_id).set(account_params).select('user_id')
 162     results = execute_admin_query(request,query)
 163     return results
 164
 165
 166 #not tested
 167 def manifold_add_platform(request, platform_params):
 168     query = Query.create('local:platform').set(platform_params).select(['user', 'platform'])
 169     results = execute_admin_query(request,query)
 170     if not results:
 171         raise Exception, "Failed creating manifold platform %s for user: %s" % (platform_params['platform'], platform_params['user'])
 172     result, = results
 173     return result['platform_id']
 174
 175
 176 def make_request_user(user):
 177     request = {}
 178     request['type']          = 'user'
 179     request['id']            = user.id
 180     request['timestamp']     = user.created # XXX in DB ?
 181     request['authority_hrn'] = user.authority_hrn
 182     request['first_name']    = user.first_name
 183     request['last_name']     = user.last_name
 184     request['email']         = user.email
 185     request['login']         = user.login
 186     request['user_hrn']      = user.user_hrn
 187     request['public_key']    = user.public_key
 188     request['private_key']   = user.private_key
 189     return request
 190
 191 def make_request_slice(slice):
 192     request = {}
 193     request['type'] = 'slice'
 194     request['id'] = slice.id
 195     request['user_hrn'] = slice.user_hrn
 196     request['timestamp'] = slice.created
 197     request['authority_hrn'] = slice.authority_hrn
 198     request['slice_name'] = slice.slice_name
 199     request['number_of_nodes'] = slice.number_of_nodes
 200     request['type_of_nodes'] = slice.type_of_nodes
 201     request['purpose'] = slice.purpose
 202     return request
 203
 204 def make_request_authority(authority):
 205     request = {}
 206     request['type']                  = 'authority'
 207     request['id']                    = authority.id
 208     request['site_name']             = authority.site_name
 209     request['site_latitude']         = authority.site_latitude
 210     request['site_longitude']        = authority.site_longitude
 211     request['site_url']              = authority.site_url
 212     request['site_authority']        = authority.site_authority
 213     request['site_abbreviated_name'] = authority.site_abbreviated_name
 214     request['address_line1']         = authority.address_line1
 215     request['address_line2']         = authority.address_line2
 216     request['address_line3']         = authority.address_line3
 217     request['address_city']          = authority.address_city
 218     request['address_postalcode']    = authority.address_postalcode
 219     request['address_state']         = authority.address_state
 220     request['address_country']       = authority.address_country
 221     request['authority_hrn']         = authority.authority_hrn
 222     request['timestamp']             = authority.created
 223     return request
 224
 225 def make_requests(pending_users, pending_slices, pending_authorities):
 226     requests = []
 227     for user in pending_users:
 228         requests.append(make_request_user(user))
 229     for slice in pending_slices:
 230         requests.append(make_request_slice(slice))
 231     for authority in pending_authorities:
 232         requests.append(make_request_authority(authority))
 233     return requests
 234
 235 def get_request_by_id(ids):
 236     sorted_ids = { 'user': [], 'slice': [], 'authority': [] }
 237     for type__id in ids:
 238         type, id = type__id.split('__')
 239         sorted_ids[type].append(id)
 240
 241     if not ids:
 242         pending_users  = PendingUser.objects.all()
 243         pending_slices = PendingSlice.objects.all()
 244         pending_authorities = PendingAuthority.objects.all()
 245     else:
 246         pending_users  = PendingUser.objects.filter(id__in=sorted_ids['user']).all()
 247         pending_slices = PendingSlice.objects.filter(id__in=sorted_ids['slice']).all()
 248         pending_authorities = PendingAuthority.objects.filter(id__in=sorted_ids['authority']).all()
 249
 250     return make_requests(pending_users, pending_slices, pending_authorities)
 251
 252 def get_requests(authority_hrns=None):
 253     print "get_request_by_authority auth_hrns = ", authority_hrns
 254     if not authority_hrns:
 255         pending_users  = PendingUser.objects.all()
 256         pending_slices = PendingSlice.objects.all()
 257         pending_authorities = PendingAuthority.objects.all()
 258     else:
 259         pending_users  = PendingUser.objects.filter(authority_hrn__in=authority_hrns).all()
 260         pending_slices = PendingSlice.objects.filter(authority_hrn__in=authority_hrns).all()
 261         pending_authorities = PendingAuthority.objects.filter(authority_hrn__in=authority_hrns).all()
 262
 263     return make_requests(pending_users, pending_slices, pending_authorities)
 264
 265 # XXX Is it in sync with the form fields ?
 266
 267 def portal_validate_request(wsgi_request, request_ids):
 268     status = {}
 269
 270     if not isinstance(request_ids, list):
 271         request_ids = [request_ids]
 272
 273     requests = get_request_by_id(request_ids)
 274     for request in requests:
 275         # type, id, timestamp, details, allowed -- MISSING: authority_hrn
 276         # CAREFUL about details
 277         # user  : first name, last name, email, password, keypair
 278         # slice : number of nodes, type of nodes, purpose
 279
 280         request_status = {}
 281
 282         if request['type'] == 'user':
 283
 284             try:
 285                 create_user(wsgi_request, request)
 286                 request_status['SFA user'] = {'status': True }
 287                 PendingUser.objects.get(id=request['id']).delete()
 288             except Exception, e:
 289                  request_status['SFA user'] = {'status': False, 'description': str(e)}
 290
 291 #            user_params = {'status':2}
 292 #            manifold_update_user(request, request['email'], user_params)
 293
 294             # MANIFOLD user should be added beforehand, during registration
 295             #try:
 296             #    manifold_user_params = { key: request[key] for key in MANIFOLD_USER_KEYS }
 297             #    # XXX # manifold_add_user(manifold_user_params)
 298             #    request_status['MySlice user'] = {'status': True }
 299             #except Exception, e:
 300             #    request_status['MySlice user'] = {'status': False, 'description': str(e)}
 301
 302             # XXX
 303             #manifold_account_params = { key: request[key] for key in MANIFOLD_ACCOUNT_KEYS }
 304             #manifold_add_account(manifold_account_params)
 305             #request_status['MySlice testbed accounts'] = {'status': False }
 306
 307         elif request['type'] == 'slice':
 308             try:
 309                 create_slice(wsgi_request, request)
 310                 request_status['SFA slice'] = {'status': True }
 311                 PendingSlice.objects.get(id=request['id']).delete()
 312
 313             except Exception, e:
 314                 request_status['SFA slice'] = {'status': False, 'description': str(e)}
 315
 316         elif request['type'] == 'authority':
 317             try:
 318                 #hrn = "%s.%s" % (request['authority_hrn'], request['site_authority'])
 319                 hrn = request['site_authority']
 320                 # XXX tmp sfa dependency
 321                 from sfa.util.xrn import Xrn
 322                 urn = Xrn(hrn, request['type']).get_urn()
 323
 324                 sfa_authority_params = {
 325                     'hrn'        : hrn,
 326                     'urn'        : urn,
 327                     'type'       : request['type'],
 328                     #'pi'        : None,
 329                     'enabled'    : True
 330                 }
 331                 print "ADD Authority"
 332                 sfa_add_authority(wsgi_request, sfa_authority_params)
 333                 request_status['SFA authority'] = {'status': True }
 334                 PendingAuthority.objects.get(id=request['id']).delete()
 335
 336             except Exception, e:
 337                 request_status['SFA authority'] = {'status': False, 'description': str(e)}
 338
 339         # XXX Remove from Pendings in database
 340
 341         status['%s__%s' % (request['type'], request['id'])] = request_status
 342
 343     return status
 344
 345
 346 def validate_action(request, **kwargs):
 347     ids = filter(None, kwargs['id'].split('/'))
 348     status = portal_validate_request(request, ids)
 349     json_answer = json.dumps(status)
 350     return HttpResponse (json_answer, mimetype="application/json")
 351
 352 # Django and ajax
 353 # http://djangosnippets.org/snippets/942/
 354
 355
 356
 357 #-------------------------------------------------------------------------------
 358 # REQUESTS - Slices
 359 #-------------------------------------------------------------------------------
 360
 361 def create_slice(wsgi_request, request):
 362     """
 363     Arguments:
 364         wsgi_request (~ WSGIRequest) :
 365         request (dict) : the slice request in our own dict format
 366
 367     Raises:
 368         Exception
 369     """
 370     hrn = "%s.%s" % (request['authority_hrn'], request['slice_name'])
 371     # XXX tmp sfa dependency
 372     from sfa.util.xrn import Xrn
 373     urn = Xrn(hrn, request['type']).get_urn()
 374
 375     # Add User to Slice if we have the user_hrn in pendingslice table
 376     user_hrn = request.get('user_hrn', None)
 377     user_hrns = list([user_hrn]) if user_hrn else list()
 378
 379     # XXX We should create a slice with Manifold terminology
 380     slice_params = {
 381         'slice_hrn'        : hrn,
 382         'slice_urn'        : urn,
 383         'slice_type'       : request['type'],
 384         'users'            : user_hrns,
 385         'slice_enabled'    : True
 386     }
 387     # ignored in request: id, timestamp,  number_of_nodes, type_of_nodes, purpose
 388
 389     query = Query.create('slice').set(slice_params).select('slice_hrn')
 390     results = execute_query(wsgi_request, query)
 391     if not results:
 392         raise Exception, "Could not create %s. Already exists ?" % slice_params['hrn']
 393     return results
 394
 395 def create_pending_slice(wsgi_request, request, email):
 396     """
 397     """
 398
 399     # Insert an entry in the PendingSlice table
 400     s = PendingSlice(
 401         slice_name      = request['slice_name'],
 402         user_hrn        = request['user_hrn'],
 403         authority_hrn   = request['authority_hrn'],
 404         number_of_nodes = request['number_of_nodes'],
 405         purpose         = request['purpose'],
 406     )
 407     s.save()
 408
 409     try:
 410         # Send an email: the recipients are the PI of the authority
 411         recipients = authority_get_pi_emails(wsgi_request, request['authority_hrn'])
 412
 413         theme.template_name = 'slice_request_email.txt'
 414         text_content = render_to_string(theme.template, request)
 415
 416         theme.template_name = 'slice_request_email.html'
 417         html_content = render_to_string(theme.template, request)
 418
 419         theme.template_name = 'slice_request_email_subject.txt'
 420         subject = render_to_string(theme.template, request)
 421         subject = subject.replace('\n', '')
 422
 423         sender = email
 424         msg = EmailMultiAlternatives(subject, text_content, sender, recipients)
 425         msg.attach_alternative(html_content, "text/html")
 426         msg.send()
 427     except Exception, e:
 428         print "Failed to send email, please check the mail templates and the SMTP configuration of your server"
 429
 430 #-------------------------------------------------------------------------------
 431 # REQUESTS - Users
 432 #-------------------------------------------------------------------------------
 433
 434 def manifold_add_reference_user_accounts(wsgi_request, request):
 435     """When a new user is created, add reference accounts to the reference platform.
 436     """
 437     # XXX XXX XXX The rest of this function has to be checked XXX XXX XXX
 438
 439     # Retrieve user information
 440     user_query  = Query().get('local:user')             \
 441         .select('user_id', 'config', 'email', 'status') \
 442         .filter_by('email', '==', request['email'])
 443     user_details = execute_admin_query(wsgi_request, user_query)
 444
 445     # USER MAIN ACCOUNT != reference
 446     #print 'USER MAIN ACCOUNT != reference'
 447     list_accounts_query = Query().get('local:account')              \
 448         .select('user_id', 'platform_id', 'auth_type', 'config')    \
 449         .filter_by('user_id', '==', user_details[0]['user_id'])     \
 450         .filter_by('auth_type', '!=', 'reference')
 451     list_accounts = execute_admin_query(wsgi_request, list_accounts_query)
 452
 453     # XXX main_platform is being erased several times ???
 454     for account in list_accounts:
 455         main_platform_query = Query().get('local:platform')         \
 456             .select('platform_id', 'platform')                      \
 457             .filter_by('platform_id', '==', account['platform_id'])
 458         main_platform = execute_admin_query(wsgi_request, main_platform_query)
 459
 460     # Add reference accounts on SFA enabled platforms
 461     platforms_query = Query().get('local:platform') \
 462         .filter_by('disabled', '==', '0')           \
 463         .filter_by('gateway_type', '==', 'sfa')     \
 464         .select('platform_id', 'gateway_type')
 465     platforms = execute_admin_query(wsgi_request, platforms_query)
 466     for platform in platforms:
 467         #print "add reference to platform ",platform
 468         manifold_account_params = {
 469             'user_id'       : user_details[0]['user_id'],
 470             'platform_id'   : platform['platform_id'],
 471             'auth_type'     : 'reference',
 472             'config'        : '{"reference_platform": "' + main_platform[0]['platform'] + '"}',
 473         }
 474         manifold_add_account(wsgi_request, manifold_account_params)
 475
 476 def sfa_create_user(wsgi_request, request):
 477     """
 478     Arguments:
 479         wsgi_request (~ WSGIRequest) :
 480         request (dict) : the user request in our own dict format
 481
 482     Raises:
 483         Exception
 484     """
 485     from sfa.util.xrn import Xrn
 486
 487     auth_pi = request.get('pi', None)
 488     auth_pi = list([auth_pi]) if auth_pi else list()
 489
 490     # We create a user request with Manifold terminology
 491     sfa_user_params = {
 492         'user_hrn'          : request['user_hrn'],
 493         'user_email'        : request['email'],
 494         'user_urn'          : Xrn(request['user_hrn'], request['type']).get_urn(),
 495         'user_type'         : request['type'],
 496         'keys'              : request['public_key'],
 497         'user_first_name'   : request['first_name'],
 498         'user_last_name'    : request['last_name'],
 499         'pi_authorities'    : auth_pi,
 500         'user_enabled'      : True
 501     }
 502
 503     query = Query.create('user').set(sfa_user_params).select('user_hrn')
 504     results = execute_query(wsgi_request, query)
 505     if not results:
 506         raise Exception, "Could not create %s. Already exists ?" % sfa_user_params['user_hrn']
 507     return results
 508
 509 def create_user(wsgi_request, request):
 510
 511     # XXX This has to be stored centrally
 512     USER_STATUS_ENABLED = 2
 513
 514     # NOTE : if we were to create a user directly (just like we create slices,
 515     # we would have to perform the steps in create_pending_user too
 516
 517     # Add the user to the SFA registry
 518     sfa_create_user(wsgi_request, request)
 519
 520     # Update Manifold user status
 521     manifold_update_user(wsgi_request, request['email'], {'status': USER_STATUS_ENABLED})
 522
 523     # Add reference accounts for platforms
 524     manifold_add_reference_user_accounts(wsgi_request, request)
 525
 526 def create_pending_user(wsgi_request, request, user_detail):
 527     """
 528     """
 529
 530     # Insert an entry in the PendingUser table
 531     b = PendingUser(
 532         first_name    = request['first_name'],
 533         last_name     = request['last_name'],
 534         authority_hrn = request['authority_hrn'],
 535         email         = request['email'],
 536         password      = request['password'],
 537         public_key    = request['public_key'],
 538         private_key   = request['private_key'],
 539         user_hrn      = request['user_hrn'],
 540         pi            = '',                         # XXX Why not None ?
 541         email_hash    = request['email_hash'],
 542         status        = 'False',
 543     )
 544     b.save()
 545     # sends email to user to activate the email
 546     theme.template_name = 'activate_user.html'
 547     html_content = render_to_string(theme.template, request)
 548     theme.template_name = 'activate_user.txt'
 549     text_content = render_to_string(theme.template, request)
 550     theme.template_name = 'activate_user_email_subject.txt'
 551     subject = render_to_string(theme.template, request)
 552     subject = subject.replace('\n', '')
 553     sender = 'support@myslice.info'
 554     recipient = [request['email']]
 555     #recipient = recipient.append(request['email'])
 556
 557     msg = EmailMultiAlternatives(subject, text_content, sender, recipient)
 558     msg.attach_alternative(html_content, "text/html")
 559     msg.send()
 560
 561     # saves the user to django auth_user table [needed for password reset]
 562     user = User.objects.create_user(request['email'], request['email'], request['password'])
 563
 564     # Creating a manifold user
 565     user_id = manifold_add_user(wsgi_request, request)
 566
 567     # Creating a Manifold account on the MySlice platform
 568     # Note the JSON representation of public and private keys already includes quotes
 569     account_config = {
 570         'user_hrn'          : request['user_hrn'],
 571         'user_public_key'   : request['public_key'],
 572     }
 573     if request['private_key']:
 574         account_config['user_private_key'] = request['private_key']
 575
 576     user_id = user_detail['user_id'] + 1 # the user_id for the newly created user in local:user
 577
 578     # XXX TODO: Require a myslice platform
 579     # ALERT: this will disapear with ROUTERV2 of Manifold
 580     # We have to consider the case where several registries can be used
 581     # Removed hardcoded platform = 5
 582     # This platform == 'myslice' is a TMP FIX !!
 583     try:
 584         reg_platform_query = Query().get('local:platform') \
 585             .filter_by('platform', '==', 'myslice')           \
 586             .select('platform_id')
 587         reg_platform = execute_admin_query(wsgi_request, reg_platform_query)
 588
 589         reg_platform_id = reg_platform[0]['platform_id']
 590         account_params = {
 591             'platform_id'   : reg_platform_id, # XXX ALERT !!
 592             'user_id'       : user_id,
 593             'auth_type'     : request['auth_type'],
 594             'config'        : json.dumps(account_config),
 595         }
 596         manifold_add_account(wsgi_request, account_params)
 597     except Exception, e:
 598         print "Failed creating manifold account on platform %s for user: %s" % ('myslice', request['email'])
 599
 600     try:
 601         # Send an email: the recipients are the PI of the authority
 602         # If No PI is defined for this Authority, send to a default email (different for each theme)
 603         recipients = authority_get_pi_emails(wsgi_request, request['authority_hrn'])
 604
 605         theme.template_name = 'user_request_email.html'
 606         html_content = render_to_string(theme.template, request)
 607
 608         theme.template_name = 'user_request_email.txt'
 609         text_content = render_to_string(theme.template, request)
 610
 611         theme.template_name = 'user_request_email_subject.txt'
 612         subject = render_to_string(theme.template, request)
 613         subject = subject.replace('\n', '')
 614
 615         theme.template_name = 'email_default_sender.txt'
 616         sender =  render_to_string(theme.template, request)
 617         sender = sender.replace('\n', '')
 618
 619         msg = EmailMultiAlternatives(subject, text_content, sender, recipients)
 620         msg.attach_alternative(html_content, "text/html")
 621         msg.send()
 622     except Exception, e:
 623         print "Failed to send email, please check the mail templates and the SMTP configuration of your server"
 624         import traceback
 625         traceback.print_exc()