def expire(self):
# get reference to group by id
try:
group_ref = db.reference("/groups/" + self.group_id)
group_dict = group_ref.get()
members_list = group_dict["members"].keys()
# Prepare message
message_title = "Group has expired!"
message_body = "The group " + group_dict[
'groupname'] + " has expired."
message = Message(self.group_id, message_title, message_body)
# Create resource manager
rm = ResourceManager(self.group_id)
# Set the current group of everyone who was in this group to null
for member in members_list:
user_group_ref = db.reference("/users/" + member +
"/current_group")
user_group_ref.delete()
#Clean all resources
group_ref.delete()
rm.delete_blobs()
# Notify all users in group
message.send()
except Exception as ex:
print(ex)
return
def delete_group():
#get headers
data = request.headers
id_token = data['Authorization']
try:
decoded_token = auth.verify_id_token(id_token)
except Exception as ex:
return make_response('user not found', 401)
# get user information
uid = decoded_token["uid"]
group_id = data["group_id"]
user = decoded_token["name"]
try:
# get reference to group by id
group_ref = db.reference("/groups/" + group_id)
group_dict = group_ref.get()
members_list = group_dict["members"].keys()
#uid belongs to owner -> Delete group
if uid == group_dict['owner']['id']:
#Prepare message
message_title = "Group deleted!"
message_body = "The group " + group_dict[
'groupname'] + " has been deleted by the owner"
message = Message(group_id, message_title, message_body)
#Create resource manager
rm = ResourceManager(group_id)
#Set the current group of everyone who was in this group to null
for member in members_list:
user_group_ref = db.reference("/users/" + member +
"/current_group")
user_group_ref.delete()
#Clean all resources
group_ref.delete()
rm.delete_blobs()
# Notify all users in group
message.send()
return make_response('group deleted', 200)
#uid belongs to member -> Leave group
elif uid in group_dict['members']:
#Set the current group of user to null
group_ref.child('members/' + uid).delete()
user_group_ref = db.reference("/users/" + uid + "/current_group")
user_group_ref.delete()
# Notify all users in group
message_title = "A member left your group!"
message_body = user + " has left your group " + group_dict[
'groupname']
message = Message(group_id, message_title, message_body)
message.send()
return make_response('left group', 200)
else:
return make_response('not authorized', 401)
except Exception as ex:
return make_response('Leaving group unsuccessful', 500)
