def oauth(request):
# retrieve destination parameters from Globus redirect
# example URL with added parameters from Globus redirect:
# /globus/oauth/?label=&verify_checksum=on&submitForm=&folder[0]=tmp&endpoint=cinquiniluca#mymac&path=/~/&ep=GC&lock=ep&method=get&folderlimit=1&action=http://localhost:8000/globus/oauth/
request.session[TARGET_ENDPOINT] = getQueryDict(request).get('endpoint','#')
request.session[TARGET_FOLDER] = getQueryDict(request).get('path','/~/') + getQueryDict(request).get('folder[0]', '') # default value: user home directory
print 'User selected destionation endpoint:%s, path:%s, folder:%s' % (request.session[TARGET_ENDPOINT], getQueryDict(request).get('path','/~/'), getQueryDict(request).get('folder[0]', ''))
# Redirect the user to Globus OAuth server to get an authorization code if the user approves the access request.
globus_authorize_url = establishFlow(request).step1_get_authorize_url()
print "Redirecting to: %s" % globus_authorize_url
return HttpResponseRedirect(globus_authorize_url)
def oauth(request):
# retrieve destination parameters from Globus redirect
# example URL with added parameters from Globus redirect:
# /globus/oauth/?label=&verify_checksum=on&submitForm=&folder[0]=tmp&endpoint=cinquiniluca#mymac&path=/~/&ep=GC&lock=ep&method=get&folderlimit=1&action=http://localhost:8000/globus/oauth/
print request.GET
request.session[TARGET_ENDPOINT] = getQueryDict(request).get('endpoint','#')
request.session[TARGET_FOLDER] = getQueryDict(request).get('path','/~/') + getQueryDict(request).get('folder[0]', '') # default value: user home directory
print 'User selected destionation endpoint:%s, path:%s, folder:%s' % (request.session[TARGET_ENDPOINT], getQueryDict(request).get('path','/~/'), getQueryDict(request).get('folder[0]', ''))
# Redirect the user to Globus OAuth server to get an authorization code if the user approves the access request.
globus_authorize_url = establishFlow(request).step1_get_authorize_url()
print "Redirecting to: %s" % globus_authorize_url
return HttpResponseRedirect(globus_authorize_url)
def search_config(request, searchConfig, extra={}, fromRedirectFlag=False):
"""
Project-specific search view that processes all GET/POST requests.
Parses GET/POST requests parameters and combines them with the project fixed constraints.
Delegates to 'search_get' and 'search_post'.
Pre-seeded search URLs are automatically processed (i.e. GET requests with additional HTTP parameters, but NOT after a POST redirect).
"""
# print extra arguments
#for key, value in extra.items():
# print 'extra key=%s value=%s' % (key, value)
# create search input object from request parameters ONLY
# NOTE: HTTP parameters MUST be part of project sarch configuration
searchInput = _buildSearchInputFromHttpRequest(request, searchConfig)
# GET/POST switch
queryDict = getQueryDict(request)
print "Search() view: HTTP Request method=%s fromRedirectFlag flag=%s HTTP parameters=%s" % (request.method, fromRedirectFlag, queryDict)
if request.method == 'GET':
# GET pre-seeded search URL -> invoke POST immediately
if len(queryDict.keys()) > 0 and not fromRedirectFlag:
return search_post(request, searchInput, searchConfig, extra)
else:
return search_get(request, searchInput, searchConfig, extra, fromRedirectFlag)
else:
return search_post(request, searchInput, searchConfig, extra)
def search_config(request, searchConfig, extra={}, fromRedirectFlag=False):
"""
Project-specific search view that processes all GET/POST requests.
Parses GET/POST requests parameters and combines them with the project fixed constraints.
Delegates to 'search_get' and 'search_post'.
Pre-seeded search URLs are automatically processed (i.e. GET requests with additional HTTP parameters, but NOT after a POST redirect).
"""
# print extra arguments
#for key, value in extra.items():
# print 'extra key=%s value=%s' % (key, value)
# create search input object from request parameters ONLY
# NOTE: HTTP parameters MUST be part of project sarch configuration
searchInput = _buildSearchInputFromHttpRequest(request, searchConfig)
# GET/POST switch
queryDict = getQueryDict(request)
print "Search() view: HTTP Request method=%s fromRedirectFlag flag=%s HTTP parameters=%s" % (
request.method, fromRedirectFlag, queryDict)
if request.method == 'GET':
# GET pre-seeded search URL -> invoke POST immediately
if len(queryDict.keys()) > 0 and not fromRedirectFlag:
return search_post(request, searchInput, searchConfig, extra)
else:
return search_get(request, searchInput, searchConfig, extra,
fromRedirectFlag)
else:
return search_post(request, searchInput, searchConfig, extra)
def membership_list_requested(request, project_short_name):
# load project
project = get_object_or_404(Project, short_name__iexact=project_short_name)
# check permission
if not userHasAdminPermission(request.user, project):
return HttpResponseForbidden(PERMISSION_DENIED_MESSAGE)
# load user group
group = project.getUserGroup()
# optional 'match' argument
match = getQueryDict(request).get('match', None) # works for GET or POST
if match:
# lookup specific user
_users = [mr.user for mr in MembershipRequest.objects.filter(group=group).order_by('user__last_name')]
users = [user for user in _users if (match in user.first_name.lower()
or match in user.last_name.lower()
or match in user.username.lower()
or match in user.email.lower())]
else:
# load all users that have requested membership
users = [mr.user for mr in MembershipRequest.objects.filter(group=group).order_by('user__last_name')]
title = '%s Pending Users' % project.short_name
view_name = 'membership_list_requested'
return render_membership_page(request, project, users, title, view_name)
def datacart_pid(request, site_id, user_id):
# check User object
user = get_object_or_404(User, pk=user_id)
# security check
if not request.user.id != user_id:
raise Exception("User not authorized to modify datacart")
pid_messaging_service_credentials = []
priority = 1
for cred in settings.PID_CREDENTIALS:
parts = cred.split('|')
if len(parts) == 6:
ssl_enabled = False
if parts[5].strip().upper() == 'TRUE':
ssl_enabled = True
pid_messaging_service_credentials.append({'url': parts[0].strip(),
'port': parts[1].strip(),
'vhost': parts[2].strip(),
'user': parts[3].strip(),
'password': parts[4].strip(),
'ssl_enabled': ssl_enabled,
'priority': priority})
priority += 1
# get list of dataset_pids and dataset_ids
try:
datacart = DataCart.objects.get(user=user)
except DataCart.DoesNotExist:
datacart = None
queryDict = getQueryDict(request)
ids = queryDict.getlist('id')
dataset_ids = {}
if datacart:
for item in datacart.items.all():
# filter selected datasets only
if item.identifier in ids:
dataset_ids[item.identifier.split('|')[0]] = item.getValue('pid')
# call PID library to generate collection PID
connector = esgfpid.Connector(handle_prefix=settings.PID_PREFIX,
messaging_service_exchange_name=settings.PID_MESSAGING_SERVICE_EXCHANGE,
messaging_service_credentials=pid_messaging_service_credentials,
)
connector.start_messaging_thread()
pid = connector.create_data_cart_pid(dataset_ids)
connector.finish_messaging_thread()
print 'Generated data cart PID for %d datasets: %s' % (len(ids), pid)
return HttpResponse(json.dumps(pid), content_type="application/json")
def search(request, project_short_name):
"""
Entry point for all search requests (GET/POST).
Loads project-specific configuration.
"""
# store this URL at session scope so other pages can reload the last search
request.session[LAST_SEARCH_URL] = request.get_full_path(
) # relative search page URL + optional query string
fromRedirectFlag = False
if request.session.get(SEARCH_REDIRECT, None):
fromRedirectFlag = True
# remove POST redirect flag from session
del request.session[SEARCH_REDIRECT]
# retrieve project from database
project = get_object_or_404(Project, short_name__iexact=project_short_name)
# check permission
if project.private:
if request.user.is_anonymous():
return HttpResponseRedirect(
reverse('login') + "?next=%s" % request.path)
else:
if not userHasUserPermission(request.user, project):
return HttpResponseForbidden(PERMISSION_DENIED_MESSAGE)
config = _getSearchConfig(request, project)
if config:
# config.printme()
# pass on project as extra argument to search
# also include possible custom template
return search_config(request,
config,
extra={
'project':
project,
'title2':
'%s Data Search' % project.short_name,
'template':
getQueryDict(request).get(TEMPLATE, None)
},
fromRedirectFlag=fromRedirectFlag)
# search is not configured for this project
else:
messages = [
'Searching is not enabled for this project.',
'Please contact the project administrators for further assistance.'
]
return render(request, 'cog/common/message.html', {
'project': project,
'messages': messages,
'title2': 'Data Search'
})
def datacart_wget(request, site_id, user_id):
# load User object
user = get_object_or_404(User, pk=user_id)
# security check
if not request.user.id != user_id:
raise Exception("User not authorized to use datacart")
# retrieve list of selected dataset ids
queryDict = getQueryDict(request)
ids = queryDict.getlist('id')
# map of dataset ids grouped by index node
response_data = {}
# loop over datacart items
try:
datacart = DataCart.objects.get(user=user)
except DataCart.DoesNotExist:
datacart = None
if datacart:
for item in datacart.items.all():
# filter selected datasets only
if item.identifier in ids:
# group selected dataset by index_node
index_node = item.getValue('index_node')
wget_key = index_node
shard = item.getValue('shard')
if shard is not None and len(shard.strip()) > 0:
wget_key += "|" + shard
if wget_key not in response_data:
response_data[wget_key] = []
response_data[wget_key].append(item.identifier)
'''
Example response_data:
{
u'esgf-node.jpl.nasa.gov|localhost:8982': [u'CMAC.NASA-GSFC.AIRS.mon.v1|esg-datanode.jpl.nasa.gov'],
u'esgf-node.jpl.nasa.gov': [u'obs4MIPs.NASA-JPL.QuikSCAT.mon.v1|esgf-node.jpl.nasa.gov'],
u'pcmdi9.llnl.gov':
[
u'cmip5.output1.INM.inmcm4.1pctCO2.day.atmos.day.r1i1p1.v20110323|pcmdi9.llnl.gov',
u'cmip5.output1.INM.inmcm4.esmHistorical.fx.atmos.fx.r0i0p0.v20110927|pcmdi9.llnl.gov',
u'cmip5.output1.INM.inmcm4.1pctCO2.day.ocean.day.r1i1p1.v20110323|pcmdi9.llnl.gov'
]
}
'''
return HttpResponse(json.dumps(response_data),
content_type='application/json')
def datacart_wget(request, site_id, user_id):
# load User object
user = get_object_or_404(User, pk=user_id)
# security check
if not request.user.id != user_id:
raise Exception("User not authorized to use datacart")
# retrieve list of selected dataset ids
queryDict = getQueryDict(request)
ids = queryDict.getlist('id')
# map of dataset ids grouped by index node
response_data = {}
# loop over datacart items
try:
datacart = DataCart.objects.get(user=user)
except DataCart.DoesNotExist:
datacart = None
if datacart:
for item in datacart.items.all():
# filter selected datasets only
if item.identifier in ids:
# group selected dataset by index_node
index_node = item.getValue('index_node')
wget_key = index_node
shard = item.getValue('shard')
if shard is not None and len(shard.strip())>0:
wget_key += "|" + shard
if wget_key not in response_data:
response_data[wget_key] = []
response_data[wget_key].append(item.identifier)
'''
Example response_data:
{
u'esgf-node.jpl.nasa.gov|localhost:8982': [u'CMAC.NASA-GSFC.AIRS.mon.v1|esg-datanode.jpl.nasa.gov'],
u'esgf-node.jpl.nasa.gov': [u'obs4MIPs.NASA-JPL.QuikSCAT.mon.v1|esgf-node.jpl.nasa.gov'],
u'pcmdi9.llnl.gov':
[
u'cmip5.output1.INM.inmcm4.1pctCO2.day.atmos.day.r1i1p1.v20110323|pcmdi9.llnl.gov',
u'cmip5.output1.INM.inmcm4.esmHistorical.fx.atmos.fx.r0i0p0.v20110927|pcmdi9.llnl.gov',
u'cmip5.output1.INM.inmcm4.1pctCO2.day.ocean.day.r1i1p1.v20110323|pcmdi9.llnl.gov'
]
}
'''
return HttpResponse(json.dumps(response_data), content_type='application/json')
def get_openid(request):
"""
Retrieves the user openid from either the request query string,
or the request cookies.
"""
queryDict = getQueryDict(request)
if queryDict.get('openid', None):
return queryDict['openid']
elif request.COOKIES.get('openid', None):
return request.COOKIES['openid']
else:
return ''
def _getUnsavedProjectSubFolders(project, request):
"""
Function to create the project top-level sub-folders, in the appropriate state,
WITHOUT PERSISTING THEM TO THE DATABASE.
"""
folders = []
for key, value in TOP_SUB_FOLDERS.items():
folder = Folder(name=value, project=project, active=False)
if request is not None and ("folder_%s" % value) in getQueryDict(request).keys():
folder.active = True
folders.append(folder)
return folders
def get_openid(request):
"""
Retrieves the user openid from either the request query string,
or the request cookies.
"""
queryDict = getQueryDict(request)
if queryDict.get('openid', None):
return queryDict['openid']
elif request.COOKIES.get('openid', None):
return request.COOKIES['openid']
else:
return ''
def membership_process(request, project_short_name):
# load project
project = get_object_or_404(Project, short_name__iexact=project_short_name)
# check permission
if not userHasAdminPermission(request.user, project):
return HttpResponseForbidden(PERMISSION_DENIED_MESSAGE)
queryDict = getQueryDict(request)
for (name, value) in queryDict.items():
if name.startswith(NEW_MEMBERSHIP) or name.startswith(OLD_MEMBERSHIP) or name.startswith(NO_MEMBERSHIP):
(prefix, group_name, user_id) = name.split(":")
group = get_object_or_404(Group, name=group_name)
user = get_object_or_404(User, pk=user_id)
# HTTP POST parameter from form check-box, all checks are treated as new
# process checkbox as a new user
if name.startswith(NEW_MEMBERSHIP):
status = addMembership(user, group, admin=request.user)
#only email if user not already a member
if status == RESULT_SUCCESS:
notifyUserOfMembershipGranted(project, group, user, request)
# process hidden input field that indicates current membership
# HTTP POST parameter from form hidden field
# if user has a role, then {{isEnrolled}} turns on the hidden field with value = "on"
elif name.startswith(OLD_MEMBERSHIP):
try:
# don't delete from group if checkbox is still checked (e.g. new membership)
new_membership = queryDict[encodeMembershipPar(NEW_MEMBERSHIP, group.name, user.id)]
except KeyError:
# checkbox is empty, so remove from group
status = cancelMembership(user, group, admin=request.user)
if status == RESULT_SUCCESS:
notifyUserOfGroupRemoval(project, group, user)
# HTTP GET parameter (when delete link clicked)
elif name.startswith(NO_MEMBERSHIP):
# TODO check group here, should remove from all groups
status = cancelMembership(user, group)
if status == RESULT_SUCCESS:
notifyUserOfGroupRemoval(project, group, user)
# redirect to the original listing that submitted the processing
view_name = queryDict['view_name']
return HttpResponseRedirect(reverse(view_name,
kwargs={'project_short_name': project_short_name})+"?status=success")
def pagination_url(request, page_number):
'''Constructs the previous/next URL for a paginated page including all GET request parameters.'''
# copy all current GET/POST request parameters
params = getQueryDict(request).copy()
# replace/add 'page' parameter
params['page'] = page_number
# remove 'csrfmiddlewaretoken' from GET URL
if params.get('csrfmiddlewaretoken', None):
del params['csrfmiddlewaretoken']
# build full URL
return '%s?%s' % (request.path, params.urlencode())
def _getUnsavedProjectSubFolders(project, request):
"""
Function to create the project top-level sub-folders, in the appropriate state,
WITHOUT PERSISTING THEM TO THE DATABASE.
"""
folders = []
for key, value in TOP_SUB_FOLDERS.items():
folder = Folder(name=value, project=project, active=False)
if request is not None and ("folder_%s" %
value) in getQueryDict(request).keys():
folder.active = True
folders.append(folder)
return folders
def pagination_url(request, page_number):
'''Constructs the previous/next URL for a paginated page including all GET request parameters.'''
# copy all current GET/POST request parameters
params = getQueryDict(request).copy()
# replace/add 'page' parameter
params['page'] = page_number
# remove 'csrfmiddlewaretoken' from GET URL
if params.get('csrfmiddlewaretoken', None):
del params['csrfmiddlewaretoken']
# build full URL
return '%s?%s' % (request.path, params.urlencode())
def _buildSearchInputFromHttpRequest(request, searchConfig):
"""Assembles the search input from the HTTP request only (NO project fixed constraints yet)."""
queryDict = getQueryDict(request)
# populate input with search constraints from HTTP request
# only use facet keys from project configuration
searchInput = SearchInput()
for facetGroup in searchConfig.facetProfile.facetGroups:
for key in facetGroup.getKeys():
if queryDict.get(key, None):
for value in queryDict.getlist(key):
if value:
searchInput.addConstraint(key, value)
# text
if queryDict.get('query', None):
searchInput.query = queryDict['query']
# type
if queryDict.get('type', None):
searchInput.type = queryDict['type']
# replica=True/False
if queryDict.get('replica', None) == 'on':
searchInput.replica = True
# latest=True/False
if queryDict.get('latest', None) == 'on':
searchInput.latest = False
# local=True/False + replica=True
if queryDict.get('local', None) == 'on':
searchInput.local = True
searchInput.replica = True # NEW: local search ALWAYS implies ALL replicas
# offset, limit
if queryDict.get('offset', 0):
searchInput.offset = int(queryDict['offset'])
if queryDict.get('limit', 0):
searchInput.limit = int(queryDict['limit'])
# max_version, min_version
# NOTE: implies search on All Versions ( searchInput.latest = False )
if queryDict.get('max_version', ''):
searchInput.max_version = queryDict['max_version'].strip()
searchInput.latest = False
if queryDict.get('min_version', ''):
searchInput.min_version = queryDict['min_version'].strip()
searchInput.latest = False
return searchInput
def _buildSearchInputFromHttpRequest(request, searchConfig):
"""Assembles the search input from the HTTP request only (NO project fixed constraints yet)."""
queryDict = getQueryDict(request)
# populate input with search constraints from HTTP request
# only use facet keys from project configuration
searchInput = SearchInput()
for facetGroup in searchConfig.facetProfile.facetGroups:
for key in facetGroup.getKeys():
if queryDict.get(key, None):
for value in queryDict.getlist(key):
if value:
searchInput.addConstraint(key, value)
# text
if queryDict.get('query', None):
searchInput.query = queryDict['query']
# type
if queryDict.get('type', None):
searchInput.type = queryDict['type']
# replica=True/False
if queryDict.get('replica', None) == 'on':
searchInput.replica = True
# latest=True/False
if queryDict.get('latest', None) == 'on':
searchInput.latest = False
# local=True/False + replica=True
if queryDict.get('local', None) == 'on':
searchInput.local = True
searchInput.replica = True # NEW: local search ALWAYS implies ALL replicas
# offset, limit
if queryDict.get('offset', 0):
searchInput.offset = int(queryDict['offset'])
if queryDict.get('limit', 0):
searchInput.limit = int(queryDict['limit'])
# max_version, min_version
# NOTE: implies search on All Versions ( searchInput.latest = False )
if queryDict.get('max_version', ''):
searchInput.max_version = queryDict['max_version'].strip()
searchInput.latest = False
if queryDict.get('min_version', ''):
searchInput.min_version = queryDict['min_version'].strip()
searchInput.latest = False
return searchInput
def admin_users(request):
# optional parameters (via GET or POST)
queryDict = getQueryDict(request)
sortby = queryDict.get('sortby', 'username') # default to sort by 'username'
match = queryDict.get('match', None)
if match:
users = getAdminUsersThatMatch(match, sortby=sortby)
else:
users = User.objects.all().order_by(sortby)
title = 'List System/Node Users'
return render(request,
'cog/admin/admin_users.html',
{'users': paginate(users, request, max_counts_per_page=50), 'title': title})
def admin_users(request):
# optional parameters (via GET or POST)
queryDict = getQueryDict(request)
sortby = queryDict.get('sortby',
'username') # default to sort by 'username'
match = queryDict.get('match', None)
if match:
users = getAdminUsersThatMatch(match, sortby=sortby)
else:
users = User.objects.all().order_by(sortby)
title = 'List System/Node Users'
return render(request, 'cog/admin/admin_users.html', {
'users': paginate(users, request, max_counts_per_page=50),
'title': title
})
def membership_list_all(request, project_short_name):
# load project
project = get_object_or_404(Project, short_name__iexact=project_short_name)
# check permission
if not userHasAdminPermission(request.user, project):
return HttpResponseForbidden(PERMISSION_DENIED_MESSAGE)
# load all users - that match...
match = getQueryDict(request).get('match', None) # works for GET or POST
if match:
users = getUsersThatMatch(match)
else:
users = User.objects.all().order_by('last_name')
title = 'Assign Project Members From "List Of All Node Users"'
view_name = 'membership_list_all'
return render_membership_page(request, project, users, title, view_name)
def search(request, project_short_name):
"""
Entry point for all search requests (GET/POST).
Loads project-specific configuration.
"""
# store this URL at session scope so other pages can reload the last search
request.session[LAST_SEARCH_URL] = request.get_full_path() # relative search page URL + optional query string
fromRedirectFlag = False
if request.session.get(SEARCH_REDIRECT, None):
fromRedirectFlag = True
# remove POST redirect flag from session
del request.session[SEARCH_REDIRECT]
# retrieve project from database
project = get_object_or_404(Project, short_name__iexact=project_short_name)
# check permission
if project.private:
if request.user.is_anonymous():
return HttpResponseRedirect(reverse('login')+"?next=%s" % request.path)
else:
if not userHasUserPermission(request.user, project):
return HttpResponseForbidden(PERMISSION_DENIED_MESSAGE)
config = _getSearchConfig(request, project)
if config:
# config.printme()
# pass on project as extra argument to search
# also include possible custom template
return search_config(request, config, extra={'project': project,
'title2': '%s Data Search'% project.short_name,
'template':getQueryDict(request).get(TEMPLATE,None) },
fromRedirectFlag=fromRedirectFlag)
# search is not configured for this project
else:
messages = ['Searching is not enabled for this project.',
'Please contact the project administrators for further assistance.']
return render(request,
'cog/common/message.html',
{'project': project, 'messages': messages, 'title2': 'Data Search'})
def save_user_tag(request):
# POST: when local user submits form, GET: when remote user is redirected to this node
if request.method == 'POST' or request.method == 'GET':
# retrieve tag
queryDict = getQueryDict(request)
tagName = queryDict['tag']
redirect = queryDict['redirect']
print 'Saving user tag: %s' % tagName
print 'Eventually redirecting to: %s' % redirect
if isUserLocal(request.user):
try:
tag = ProjectTag.objects.get(name__iexact=tagName)
except ObjectDoesNotExist:
tag = ProjectTag.objects.create(name=tagName)
print 'Created new tag: %s' % tag
# add this tag to the user preferences
utags = request.user.profile.tags
if tag not in utags.all():
utags.add(tag)
request.user.profile.save()
print 'Tag: %s added to user: %s' % (tagName, request.user)
# set session flag to preselect a tab
request.session['PROJECT_BROWSER_TAB'] = 3
return HttpResponseRedirect(redirect)
# redirect request to user home node
else:
url = "http://%s%s?tag=%s&redirect=%s" % (
request.user.profile.site.domain, reverse('save_user_tag'),
tagName, redirect)
print 'Redirecting save request to URL=%s' % url
# set session flag to eventually force reloading of user tags
request.session['LAST_ACCESSED'] = 0
# also set session flag to preselect a tab
request.session['PROJECT_BROWSER_TAB'] = 3
request.session.save()
return HttpResponseRedirect(url)
def save_user_tag(request):
# POST: when local user submits form, GET: when remote user is redirected to this node
if request.method == 'POST' or request.method == 'GET':
# retrieve tag
queryDict = getQueryDict(request)
tagName = queryDict['tag']
redirect = queryDict['redirect']
print 'Saving user tag: %s' % tagName
print 'Eventually redirecting to: %s' % redirect
if isUserLocal(request.user):
try:
tag = ProjectTag.objects.get(name__iexact=tagName)
except ObjectDoesNotExist:
tag = ProjectTag.objects.create(name=tagName)
print 'Created new tag: %s' % tag
# add this tag to the user preferences
utags = request.user.profile.tags
if tag not in utags.all():
utags.add(tag)
request.user.profile.save()
print 'Tag: %s added to user: %s' % (tagName, request.user)
# set session flag to preselect a tab
request.session['PROJECT_BROWSER_TAB'] = 3
return HttpResponseRedirect(redirect)
# redirect request to user home node
else:
url = "http://%s%s?tag=%s&redirect=%s" % (request.user.profile.site.domain, reverse('save_user_tag'),
tagName, redirect)
print 'Redirecting save request to URL=%s' % url
# set session flag to eventually force reloading of user tags
request.session['LAST_ACCESSED'] = 0
# also set session flag to preselect a tab
request.session['PROJECT_BROWSER_TAB'] = 3
request.session.save()
return HttpResponseRedirect(url)
def doc_remove(request, doc_id):
# retrieve document from database
doc = get_object_or_404(Doc, pk=doc_id)
project = doc.project
# check permission
if not userHasContributorPermission(request.user, project):
return HttpResponseForbidden(PERMISSION_DENIED_MESSAGE)
# delete doc altogether
delete_doc(doc)
# redirect to original page, or to project home if not found
redirect = getQueryDict(request).get('redirect', None)
if redirect is None:
redirect = reverse('project_home', kwargs={'project_short_name': project.short_name.lower()})
# redirect to project home page
#return HttpResponseRedirect( reverse('doc_list', kwargs={'project_short_name': project.short_name.lower() } ) )
return HttpResponseRedirect(redirect)
def doc_remove(request, doc_id):
# retrieve document from database
doc = get_object_or_404(Doc, pk=doc_id)
project = doc.project
# check permission
if not userHasContributorPermission(request.user, project):
return HttpResponseForbidden(PERMISSION_DENIED_MESSAGE)
# delete doc altogether
delete_doc(doc)
# redirect to original page, or to project home if not found
redirect = getQueryDict(request).get('redirect', None)
if redirect is None:
redirect = reverse(
'project_home',
kwargs={'project_short_name': project.short_name.lower()})
# redirect to project home page
#return HttpResponseRedirect( reverse('doc_list', kwargs={'project_short_name': project.short_name.lower() } ) )
return HttpResponseRedirect(redirect)
def membership_list_enrolled(request, project_short_name):
# load project
project = get_object_or_404(Project, short_name__iexact=project_short_name)
# check permission
if not userHasAdminPermission(request.user, project):
return HttpResponseForbidden(PERMISSION_DENIED_MESSAGE)
# optional 'match' argument
match = getQueryDict(request).get('match', None) # works for GET or POST
if match:
# filter all users by 'match'
_users = getUsersThatMatch(match)
# filter all users by project
users = [user for user in _users if (user in project.getUserGroup().user_set.all()
or user in project.getAdminGroup().user_set.all())]
else:
users = list(project.getUsers())
title = '%s Current Users' % project.short_name
view_name = 'membership_list_enrolled'
return render_membership_page(request, project, users, title, view_name)
def datacart_pid(request, site_id, user_id):
# check User object
user = get_object_or_404(User, pk=user_id)
# security check
if not request.user.id != user_id:
raise Exception("User not authorized to modify datacart")
pid_messaging_service_credentials = []
priority = 1
for cred in settings.PID_CREDENTIALS:
parts = cred.split('|')
if len(parts) == 6:
ssl_enabled = False
if parts[5].strip().upper() == 'TRUE':
ssl_enabled = True
pid_messaging_service_credentials.append({
'url':
parts[0].strip(),
'port':
parts[1].strip(),
'vhost':
parts[2].strip(),
'user':
parts[3].strip(),
'password':
parts[4].strip(),
'ssl_enabled':
ssl_enabled,
'priority':
priority
})
priority += 1
# get list of dataset_pids and dataset_ids
try:
datacart = DataCart.objects.get(user=user)
except DataCart.DoesNotExist:
datacart = None
queryDict = getQueryDict(request)
ids = queryDict.getlist('id')
dataset_ids = {}
if datacart:
for item in datacart.items.all():
# filter selected datasets only
if item.identifier in ids:
dataset_ids[item.identifier.split('|')[0]] = item.getValue(
'pid')
# call PID library to generate collection PID
connector = esgfpid.Connector(
handle_prefix=settings.PID_PREFIX,
messaging_service_exchange_name=settings.
PID_MESSAGING_SERVICE_EXCHANGE,
messaging_service_credentials=pid_messaging_service_credentials,
)
connector.start_messaging_thread()
pid = connector.create_data_cart_pid(dataset_ids)
connector.finish_messaging_thread()
print 'Generated data cart PID for %d datasets: %s' % (len(ids), pid)
return HttpResponse(json.dumps(pid), content_type="application/json")
def download(request): ''' View that initiates the Globus download workflow by collecting and optionally sub-selecting the GridFTP URLs to be downloaded. This view can be invoked via GET (link from search page, one dataset only) or POST (link from data cart page, multiple datasets at once). Example URL: http://localhost:8000/globus/download/ ?dataset=obs4MIPs.NASA-JPL.AIRS.mon.v1%[email protected],obs4MIPs.NASA-JPL.MLS.mon.v1%[email protected] &method=web ''' # retrieve request parameters datasets = getQueryDict(request).get('dataset','').split(",") # optional query filter query = getQueryDict(request).get('query',None) # maximum number of files to query for, if specified limit = request.GET.get('limit', DOWNLOAD_LIMIT) # map of (data_node, list of GridFTP URLs to download) download_map = {} # loop over requested datasets for dataset in datasets: # query each index_node for all files belonging to that dataset (dataset_id, index_node) = str(dataset).split('@') params = [ ('type',"File"), ('dataset_id',dataset_id), ('offset','0'), ('limit',limit), ('fields','url'), ("format", "application/solr+json") ] if query is not None and len(query.strip())>0: params.append( ('query', query) ) # optional shard shard = request.GET.get('shard', '') if shard is not None and len(shard.strip()) > 0: params.append(('shards', shard+"/solr")) # '&shards=localhost:8982/solr' else: params.append(("distrib", "false")) url = "http://"+index_node+"/esg-search/search?"+urllib.urlencode(params) print 'Searching for files at URL: %s' % url jobj = getJson(url) # parse response for GridFTP URls if jobj is not None: for doc in jobj['response']['docs']: access = {} for url in doc['url']: # example URLs: # 'http://esg-datanode.jpl.nasa.gov/thredds/fileServer/esg_dataroot/obs4MIPs/observations/atmos/husNobs/mon/grid/NASA-JPL/AIRS/v20110608/husNobs_AIRS_L3_RetStd-v5_200209-201105.nc|application/netcdf|HTTPServer' # 'http://esg-datanode.jpl.nasa.gov/thredds/dodsC/esg_dataroot/obs4MIPs/observations/atmos/husNobs/mon/grid/NASA-JPL/AIRS/v20110608/husNobs_AIRS_L3_RetStd-v5_200209-201105.nc.html|application/opendap-html|OPENDAP' # 'globus:8a3f3166-e9dc-11e5-97d6-22000b9da45e//esg_dataroot/obs4MIPs/observations/atmos/husNobs/mon/grid/NASA-JPL/AIRS/v20110608/husNobs_AIRS_L3_RetStd-v5_200209-201105.nc|Globus|Globus' # 'gsiftp://esg-datanode.jpl.nasa.gov:2811//esg_dataroot/obs4MIPs/observations/atmos/husNobs/mon/grid/NASA-JPL/AIRS/v20110608/husNobs_AIRS_L3_RetStd-v5_200209-201105.nc|application/gridftp|GridFTP' parts = url.split('|') access[parts[2].lower()] = parts[0] if 'globus' in access: m = re.match('globus:([^/]*)(.*)', access['globus']) if m: gendpoint_name = m.group(1) path = m.group(2) if not gendpoint_name in download_map: download_map[gendpoint_name] = [] # insert empty list of paths download_map[gendpoint_name].append(path) else: print 'The file is not accessible through Globus' else: return HttpResponseServerError("Error querying for files URL") # store map in session request.session[GLOBUS_DOWNLOAD_MAP] = download_map print 'Stored Globus Download Map=%s at session scope' % download_map # redirect after post (to display page) return HttpResponseRedirect( reverse('globus_transfer') )
def getHttpParamValue(request, name):
'''Retrieves an HTTP parameter value from either the GET or POST request dictionary.'''
return getQueryDict(request).get(name, '')
def post_update(request, post_id):
# retrieve post object from database
post = get_object_or_404(Post, pk=post_id)
# check permission
if not userCanPost(request.user, post):
return HttpResponseForbidden(PERMISSION_DENIED_MESSAGE)
# check lock
lock = getLock(post)
if isLockedOut(request.user, lock):
return getPostIsLockedRedirect(request, post.project, post, lock)
if request.method == 'GET':
# create/renew lock
lock = createLock(post, request.user)
# extract page partial URL
if post.type == Post.TYPE_PAGE:
post.url = get_project_page_sub_url(post.project, post.url)
# create form object from model
form = PostForm(post.type, post.project, instance=post)
return render_post_form(request, form, post.project, post.type, lock=lock)
else:
# update existing database model with form data
form = PostForm(post.type, post.project, request.POST, instance=post)
# check versions
queryDict = getQueryDict(request)
if post.version != int(queryDict.get('version', -1)):
print 'database version=%s form version=%s' % (post.version, queryDict.get('version', -1))
return getLostLockRedirect(request, post.project, post, lock)
#print "1 PAGE URL=%s" % form.data['url']
if form.is_valid():
# TODO: if hit cancel, form does not render, what is missing from save?
# build instance from form data
post = form.save(commit=False)
form_data = form.clean()
if form_data.get("save_only"):
# save instance
post.save()
return render_post_form(request, form, post.project, post.type, lock=lock)
else:
# increment version
post.version += 1
# rebuild full page URL
if post.type == Post.TYPE_PAGE:
post.url = get_project_page_full_url(post.project, post.url)
# change the author to the last editor
post.author = request.user
# update date
post.update_date = now()
# save instance
post.save()
# create project-topic relation if not existing already
if post.topic is not None:
createProjectTopicIfNotExisting(post.project, post.topic)
# release lock
deleteLock(post)
# send post update signal
post.send_signal(SIGNAL_OBJECT_UPDATED)
# redirect to post (GET-POST-REDIRECT)
if post.type != Post.TYPE_HYPERLINK:
return redirect_to_post(request, post)
# or to project home page
else:
return HttpResponseRedirect(reverse('project_home', args=[post.project.short_name.lower()]))
else:
print form.errors
return render_post_form(request, form, post.project, post.type, lock=lock)
def search_post(request, searchInput, searchConfig, extra={}):
"""
View that processes a search POST request.
Stores results in session, together with special SEARCH_REDIRECT session flag.
Then redirects to the search GET URL.
"""
facetProfile = searchConfig.facetProfile
searchService = searchConfig.searchService
queryDict = getQueryDict(request)
# validate user input
(valid, error_message) = searchInput.isValid()
if valid:
# add project fixed constraints
print 'Search POST: adding fixed project constraints'
_searchInput = _addConfigConstraints(searchInput, searchConfig)
_searchInput.printme()
# set retrieval of all facets in profile
_searchInput.facets = facetProfile.getAllKeys()
# execute query for results, facets
try:
(url, xml) = searchService.search(_searchInput)
searchOutput = deserialize(xml, facetProfile)
# searchOutput.printme()
# initialize new session data from extra argument dictionary
data = extra
data[SEARCH_INPUT] = searchInput # IMPORTANT: store in session the ORIGINAL search input WITHOUT project constraints
data[SEARCH_OUTPUT] = searchOutput
data[SEARCH_URL] = url
data[FACET_PROFILE] = facetProfile
# data[FACET_PROFILE] = sorted( facetProfile.getKeys() ) # sort facets by key
except HTTPError:
print "HTTP Request Error"
data = request.session[SEARCH_DATA]
data[SEARCH_INPUT] = searchInput
data[ERROR_MESSAGE] = "Error: search may not be properly configured. Contact the Project " \
"Administrator."
# invalid user input
else:
print "Invalid Search Input"
# re-use previous data (output, profile and any extra argument) from session
data = request.session[SEARCH_DATA]
# override search input from request
data[SEARCH_INPUT] = searchInput
# add error
data[ERROR_MESSAGE] = error_message
# store data in session
request.session[SEARCH_DATA] = data
# update search path
sp = request.session.get(SEARCH_PATH, [])
# for key, values in searchInput.constraints.items():
# note: request parameters do NOT include the project fixed constraints
req_constraints = [] # latest constraints from request
for key, value in queryDict.items():
if not key in SEARCH_PATH_EXCLUDE and value != 'on': # value from 'checkbox_...'
if value is not None and len(value) > 0: # disregard empty facet
print 'key=%s value=%s' % (key, value)
constraint = (key, value)
req_constraints.append(constraint)
if not constraint in sp:
sp.append(constraint)
# remove obsolete constraints
sp = [item for item in sp if item in req_constraints]
request.session[SEARCH_PATH] = sp
# use POST-REDIRECT-GET pattern
# flag the redirect in session
request.session[SEARCH_REDIRECT] = True
#return HttpResponseRedirect(request.get_full_path()) # relative search page URL + optional query string
# GET redirect
if extra.get(TEMPLATE, None):
return HttpResponseRedirect(request.get_full_path()) # keep the query parameters
else:
return HttpResponseRedirect(request.path) # remove query parameters
def post_add(request, project_short_name, owner=None):
"""
View to create a Post object within a context project.
Optionally, an owner object can be specified, which is assigned a reference to the newly created Post
through its method .setPost(Post)
"""
# load project
project = get_object_or_404(Project, short_name__iexact=project_short_name)
# check permission
if not userHasContributorPermission(request.user, project):
return HttpResponseForbidden(PERMISSION_DENIED_MESSAGE)
# retrieve type
postType = getQueryDict(request).get('type')
if request.method == 'GET':
# create empty Post object, pre-populate project and type
post = Post()
post.project = project
post.type = postType
# optionally assign parent Post
parent_id = request.GET.get('parent_id', None)
if parent_id:
ppost = get_object_or_404(Post, pk=parent_id)
post.parent = ppost
post.topic = ppost.topic
# set fixed fields for hyperlinks
#if postType == Post.TYPE_HYPERLINK:
# post.template = None
# post.is_private = False
# post.is_restricted = False
# create form from instance
# note extra argument project to customize the queryset!
form = PostForm(postType, project, instance=post)
return render_post_form(request, form, project, postType)
else:
# create form object from form data
form = PostForm(postType, project, request.POST)
if form.is_valid():
# create a new post object but don't save it to the database yet
post = form.save(commit=False)
# modify the post object
post.author = request.user
# update date
post.update_date = now()
# page: build full page URL
if post.type == Post.TYPE_PAGE:
post.url = get_project_page_full_url(project, post.url)
elif post.type != Post.TYPE_HYPERLINK:
# assign temporary value before object id is assigned
post.url = datetime.now()
# assign post order, if top-level
# note that the post.topic may be None
if post.parent is None:
pages = Post.objects.filter(project=project).filter(topic=post.topic).filter(parent=None).\
filter(Q(type=Post.TYPE_PAGE) | Q(type=Post.TYPE_HYPERLINK)).order_by('order')
post.order = len(pages) + 1
else:
post.order = 0
# save post object to the database (GET-POST-REDIRECT)
post.save()
# assign post URL and save again
if post.type == Post.TYPE_BLOG or post.type == Post.TYPE_NOTES:
post.url = reverse('post_detail', args=[post.id])
post.save()
# create project-topic relation if not existing already
if post.topic is not None:
createProjectTopicIfNotExisting(project, post.topic)
# assign this reference to owner
if owner is not None:
owner.setPost(post)
owner.save()
# send post update signal
post.send_signal(SIGNAL_OBJECT_CREATED)
# redirect to post (GET-POST-REDIRECT)
if post.type != Post.TYPE_HYPERLINK:
return redirect_to_post(request, post)
# or to project home page
else:
return HttpResponseRedirect(
reverse('project_home', args=[project_short_name.lower()]))
# invalid data
else:
print form.errors
return render_post_form(request, form, project, postType)
def post_update(request, post_id):
# retrieve post object from database
post = get_object_or_404(Post, pk=post_id)
# check permission
if not userCanPost(request.user, post):
return HttpResponseForbidden(PERMISSION_DENIED_MESSAGE)
# check lock
lock = getLock(post)
if isLockedOut(request.user, lock):
return getPostIsLockedRedirect(request, post.project, post, lock)
if request.method == 'GET':
# create/renew lock
lock = createLock(post, request.user)
# extract page partial URL
if post.type == Post.TYPE_PAGE:
post.url = get_project_page_sub_url(post.project, post.url)
# create form object from model
form = PostForm(post.type, post.project, instance=post)
return render_post_form(request,
form,
post.project,
post.type,
lock=lock)
else:
# update existing database model with form data
form = PostForm(post.type, post.project, request.POST, instance=post)
# check versions
queryDict = getQueryDict(request)
if post.version != int(queryDict.get('version', -1)):
print 'database version=%s form version=%s' % (
post.version, queryDict.get('version', -1))
return getLostLockRedirect(request, post.project, post, lock)
#print "1 PAGE URL=%s" % form.data['url']
if form.is_valid():
# TODO: if hit cancel, form does not render, what is missing from save?
# build instance from form data
post = form.save(commit=False)
form_data = form.clean()
if form_data.get("save_only"):
# save instance
post.save()
return render_post_form(request,
form,
post.project,
post.type,
lock=lock)
else:
# increment version
post.version += 1
# rebuild full page URL
if post.type == Post.TYPE_PAGE:
post.url = get_project_page_full_url(
post.project, post.url)
# change the author to the last editor
post.author = request.user
# update date
post.update_date = now()
# save instance
post.save()
# create project-topic relation if not existing already
if post.topic is not None:
createProjectTopicIfNotExisting(post.project, post.topic)
# release lock
deleteLock(post)
# send post update signal
post.send_signal(SIGNAL_OBJECT_UPDATED)
# redirect to post (GET-POST-REDIRECT)
if post.type != Post.TYPE_HYPERLINK:
return redirect_to_post(request, post)
# or to project home page
else:
return HttpResponseRedirect(
reverse('project_home',
args=[post.project.short_name.lower()]))
else:
print form.errors
return render_post_form(request,
form,
post.project,
post.type,
lock=lock)
def download(request):
'''
View that initiates the Globus download workflow by collecting and optionally sub-selecting the GridFTP URLs to be downloaded.
This view can be invoked via GET (link from search page, one dataset only) or POST (link from data cart page, multiple datasets at once).
Example URL: http://localhost:8000/globus/download/
?dataset=obs4MIPs.NASA-JPL.AIRS.mon.v1%[email protected],obs4MIPs.NASA-JPL.MLS.mon.v1%[email protected]
&method=web
'''
# retrieve request parameters
datasets = getQueryDict(request).get('dataset', '').split(",")
# optional query filter
query = getQueryDict(request).get('query', None)
# maximum number of files to query for, if specified
limit = request.GET.get('limit', DOWNLOAD_LIMIT)
# map of (data_node, list of GridFTP URLs to download)
download_map = {}
# loop over requested datasets
for dataset in datasets:
# query each index_node for all files belonging to that dataset
(dataset_id, index_node) = str(dataset).split('@')
params = [('type', "File"), ('dataset_id', dataset_id),
('offset', '0'), ('limit', limit), ('fields', 'url'),
("format", "application/solr+json")]
if query is not None and len(query.strip()) > 0:
params.append(('query', query))
# optional shard
shard = request.GET.get('shard', '')
if shard is not None and len(shard.strip()) > 0:
params.append(
('shards', shard + "/solr")) # '&shards=localhost:8982/solr'
else:
params.append(("distrib", "false"))
url = "http://" + index_node + "/esg-search/search?" + urllib.urlencode(
params)
print 'Searching for files at URL: %s' % url
jobj = getJson(url)
# parse response for GridFTP URls
if jobj is not None:
for doc in jobj['response']['docs']:
access = {}
for url in doc['url']:
# example URLs:
# 'http://esg-datanode.jpl.nasa.gov/thredds/fileServer/esg_dataroot/obs4MIPs/observations/atmos/husNobs/mon/grid/NASA-JPL/AIRS/v20110608/husNobs_AIRS_L3_RetStd-v5_200209-201105.nc|application/netcdf|HTTPServer'
# 'http://esg-datanode.jpl.nasa.gov/thredds/dodsC/esg_dataroot/obs4MIPs/observations/atmos/husNobs/mon/grid/NASA-JPL/AIRS/v20110608/husNobs_AIRS_L3_RetStd-v5_200209-201105.nc.html|application/opendap-html|OPENDAP'
# 'globus:8a3f3166-e9dc-11e5-97d6-22000b9da45e//esg_dataroot/obs4MIPs/observations/atmos/husNobs/mon/grid/NASA-JPL/AIRS/v20110608/husNobs_AIRS_L3_RetStd-v5_200209-201105.nc|Globus|Globus'
# 'gsiftp://esg-datanode.jpl.nasa.gov:2811//esg_dataroot/obs4MIPs/observations/atmos/husNobs/mon/grid/NASA-JPL/AIRS/v20110608/husNobs_AIRS_L3_RetStd-v5_200209-201105.nc|application/gridftp|GridFTP'
parts = url.split('|')
access[parts[2].lower()] = parts[0]
if 'globus' in access:
m = re.match('globus:([^/]*)(.*)', access['globus'])
if m:
gendpoint_name = m.group(1)
path = m.group(2)
if not gendpoint_name in download_map:
download_map[gendpoint_name] = [
] # insert empty list of paths
download_map[gendpoint_name].append(path)
else:
print 'The file is not accessible through Globus'
else:
return HttpResponseServerError("Error querying for files URL")
# store map in session
request.session[GLOBUS_DOWNLOAD_MAP] = download_map
print 'Stored Globus Download Map=%s at session scope' % download_map
# redirect after post (to display page)
return HttpResponseRedirect(reverse('globus_transfer'))
def search_post(request, searchInput, searchConfig, extra={}):
"""
View that processes a search POST request.
Stores results in session, together with special SEARCH_REDIRECT session flag.
Then redirects to the search GET URL.
"""
facetProfile = searchConfig.facetProfile
searchService = searchConfig.searchService
queryDict = getQueryDict(request)
# validate user input
(valid, error_message) = searchInput.isValid()
if valid:
# add project fixed constraints
print 'Search POST: adding fixed project constraints'
_searchInput = _addConfigConstraints(searchInput, searchConfig)
_searchInput.printme()
# set retrieval of all facets in profile
_searchInput.facets = facetProfile.getAllKeys()
# execute query for results, facets
try:
(url, xml) = searchService.search(_searchInput)
searchOutput = deserialize(xml, facetProfile)
# searchOutput.printme()
# initialize new session data from extra argument dictionary
data = extra
data[
SEARCH_INPUT] = searchInput # IMPORTANT: store in session the ORIGINAL search input WITHOUT project constraints
data[SEARCH_OUTPUT] = searchOutput
data[SEARCH_URL] = url
data[FACET_PROFILE] = facetProfile
# data[FACET_PROFILE] = sorted( facetProfile.getKeys() ) # sort facets by key
except HTTPError:
print "HTTP Request Error"
data = request.session[SEARCH_DATA]
data[SEARCH_INPUT] = searchInput
data[ERROR_MESSAGE] = "Error: search may not be properly configured. Contact the Project " \
"Administrator."
# invalid user input
else:
print "Invalid Search Input"
# re-use previous data (output, profile and any extra argument) from session
data = request.session[SEARCH_DATA]
# override search input from request
data[SEARCH_INPUT] = searchInput
# add error
data[ERROR_MESSAGE] = error_message
# store data in session
request.session[SEARCH_DATA] = data
# update search path
sp = request.session.get(SEARCH_PATH, [])
# for key, values in searchInput.constraints.items():
# note: request parameters do NOT include the project fixed constraints
req_constraints = [] # latest constraints from request
for key, value in queryDict.items():
if not key in SEARCH_PATH_EXCLUDE and value != 'on': # value from 'checkbox_...'
if value is not None and len(value) > 0: # disregard empty facet
print 'key=%s value=%s' % (key, value)
constraint = (key, value)
req_constraints.append(constraint)
if not constraint in sp:
sp.append(constraint)
# remove obsolete constraints
sp = [item for item in sp if item in req_constraints]
request.session[SEARCH_PATH] = sp
# use POST-REDIRECT-GET pattern
# flag the redirect in session
request.session[SEARCH_REDIRECT] = True
#return HttpResponseRedirect(request.get_full_path()) # relative search page URL + optional query string
# GET redirect
if extra.get(TEMPLATE, None):
return HttpResponseRedirect(
request.get_full_path()) # keep the query parameters
else:
return HttpResponseRedirect(request.path) # remove query parameters
def getHttpParamValue(request, name):
'''Retrieves an HTTP parameter value from either the GET or POST request dictionary.'''
return getQueryDict(request).get(name, '')
def post_add(request, project_short_name, owner=None):
"""
View to create a Post object within a context project.
Optionally, an owner object can be specified, which is assigned a reference to the newly created Post
through its method .setPost(Post)
"""
# load project
project = get_object_or_404(Project, short_name__iexact=project_short_name)
# check permission
if not userHasContributorPermission(request.user, project):
return HttpResponseForbidden(PERMISSION_DENIED_MESSAGE)
# retrieve type
postType = getQueryDict(request).get('type')
if request.method == 'GET':
# create empty Post object, pre-populate project and type
post = Post()
post.project = project
post.type = postType
# optionally assign parent Post
parent_id = request.GET.get('parent_id', None)
if parent_id:
ppost = get_object_or_404(Post, pk=parent_id)
post.parent = ppost
post.topic = ppost.topic
# set fixed fields for hyperlinks
#if postType == Post.TYPE_HYPERLINK:
# post.template = None
# post.is_private = False
# post.is_restricted = False
# create form from instance
# note extra argument project to customize the queryset!
form = PostForm(postType, project, instance=post)
return render_post_form(request, form, project, postType)
else:
# create form object from form data
form = PostForm(postType, project, request.POST)
if form.is_valid():
# create a new post object but don't save it to the database yet
post = form.save(commit=False)
# modify the post object
post.author = request.user
# update date
post.update_date = now()
# page: build full page URL
if post.type == Post.TYPE_PAGE:
post.url = get_project_page_full_url(project, post.url)
elif post.type != Post.TYPE_HYPERLINK:
# assign temporary value before object id is assigned
post.url = datetime.now()
# assign post order, if top-level
# note that the post.topic may be None
if post.parent is None:
pages = Post.objects.filter(project=project).filter(topic=post.topic).filter(parent=None).\
filter(Q(type=Post.TYPE_PAGE) | Q(type=Post.TYPE_HYPERLINK)).order_by('order')
post.order = len(pages)+1
else:
post.order = 0
# save post object to the database (GET-POST-REDIRECT)
post.save()
# assign post URL and save again
if post.type == Post.TYPE_BLOG or post.type == Post.TYPE_NOTES:
post.url = reverse('post_detail', args=[post.id])
post.save()
# create project-topic relation if not existing already
if post.topic is not None:
createProjectTopicIfNotExisting(project, post.topic)
# assign this reference to owner
if owner is not None:
owner.setPost(post)
owner.save()
# send post update signal
post.send_signal(SIGNAL_OBJECT_CREATED)
# redirect to post (GET-POST-REDIRECT)
if post.type != Post.TYPE_HYPERLINK:
return redirect_to_post(request, post)
# or to project home page
else:
return HttpResponseRedirect(reverse('project_home', args=[project_short_name.lower()]))
# invalid data
else:
print form.errors
return render_post_form(request, form, project, postType)