def logout(request):
response = HttpResponseRedirect(reverse('home'))
auth = request.COOKIES.get('auth')
#if a user is a vendor, invalidate their vendor page before they logout
if auth:
resp = checkauth_exp_api(auth)
if (resp["ok"] == True):
user_id = resp["resp"]["user_id"]
resp = isuservendor_exp_api(user_id)
is_vendor = resp["resp"]["is_vendor"]
if (resp["ok"] == True):
if (is_vendor == True):
vendor_id = resp["resp"]["vendor_id"]
expire_view_cache(request, 'vendor', [vendor_id])
response.delete_cookie("auth")
expire_view_cache(request, 'home')
return response
def register(request):
if request.method == 'GET':
#redirect to home if already logged in
auth = request.COOKIES.get('auth')
#check whether user is logged in
if not auth:
logged_in = False
else:
resp = checkauth_exp_api(auth)
if (resp["ok"] == True):
user_id = resp["resp"]["user_id"]
logged_in = True
return HttpResponseRedirect(reverse("home"))
vendor_form = VendorForm()
user_form = UserForm()
next = request.GET.get('next') or reverse('home')
return render(request, 'register.html', {'next':next, 'user_form': user_form, 'vendor_form': vendor_form})
user_form = UserForm(request.POST)
vendor_form = VendorForm(request.POST)
if not user_form.is_valid():
return render(request, "register.html", {'state': "Invalid Input", 'user_form': user_form, "vendor_form": vendor_form})
username = user_form.cleaned_data['username']
email = user_form.cleaned_data['email']
f_name = user_form.cleaned_data['first_name']
l_name = user_form.cleaned_data['last_name']
password = user_form.cleaned_data['password']
is_vendor = user_form.cleaned_data['is_vendor']
vendor_name = ""
if (is_vendor == True):
if not vendor_form.is_valid():
expire_view_cache(request, 'register')
return render(request, "register.html", \
{'state': "Vendors must fill out company name", \
'user_form': user_form, "vendor_form": vendor_form})
vendor_name = vendor_form.cleaned_data['vendor_name']
post_data = {'username': username, \
'email': email, \
'f_name': f_name, \
'l_name': l_name, \
'password': password, \
'is_vendor': is_vendor, \
'vendor_name': vendor_name \
}
post_encoded = urllib.parse.urlencode(post_data).encode('utf-8')
req = urllib.request.Request('http://' + settings.EXP_API + ':8000/api/register/', data=post_encoded, method='POST')
resp_json = urllib.request.urlopen(req).read().decode('utf-8')
resp = json.loads(resp_json)
if (resp['ok'] == False):
expire_view_cache(request, 'register')
return render(request, "register.html", {'state': "Unsucessful registration", 'user_form': user_form, 'vendor_form':vendor_form})
expire_view_cache(request, 'login')
if (is_vendor == True):
expire_view_cache(request, 'home')
return HttpResponseRedirect(reverse('login'), {'status': 'Registration sucessful. Please login.'})
def login(request):
if request.method == 'GET':
auth = request.COOKIES.get('auth')
#check whether user is logged in
if not auth:
logged_in = False
else:
resp = checkauth_exp_api(auth)
if (resp["ok"] == True):
user_id = resp["resp"]["user_id"]
logged_in = True
return HttpResponseRedirect(reverse("home"))
login_form = LoginForm()
next = request.GET.get('next') or reverse('home')
return render(request, 'login.html', {"state": "", 'next':next, 'login_form': login_form})
login_form = LoginForm(request.POST)
if not login_form.is_valid():
return render(request, "login.html", {'state': "Invalid Input", 'login_form': login_form})
username = login_form.cleaned_data['username']
password = login_form.cleaned_data['password']
#hashed_password = hashers.make_password(password)
next = login_form.cleaned_data.get('next') or reverse('home')
# get response from login experience service
params = urllib.parse.urlencode({'username': username, 'password': password})
url = 'http://' + settings.EXP_API + ':8000/login/?%s' % params
req = urllib.request.Request(url)
resp_json = urllib.request.urlopen(req).read().decode('utf-8')
resp = json.loads(resp_json)
if (resp["ok"] == False):
# login unsucessful, reutrn error on login page
key = get_cache_key(request, key_prefix=None)
expire_view_cache(request, "login")
return render(request, 'login.html', {"state": "Invalid username and/or password", 'login_form': login_form})
if (resp["ok"] == True):
# login worked and returned authenticator
user_id = resp["resp"]["user_id"]
authenticator = resp["resp"]["authenticator"]
# if the user is a vendor, update their corresponding vendor page
resp = isuservendor_exp_api(user_id)
if (resp["ok"] == True):
is_vendor = resp["resp"]["is_vendor"]
if (is_vendor == True):
users_vendor_id = resp["resp"]["vendor_id"]
expire_view_cache(request, "vendor", [users_vendor_id])
expire_view_cache(request, "home")
response = HttpResponseRedirect(reverse('home'))
response.set_cookie("auth", authenticator)
return response
def newEntree(request):
# Check if user is logged in, if not, then redirect to login page
auth = request.COOKIES.get("auth")
# initialize dictionary
details = {}
# check whether user is logged in
if not auth:
logged_in = False
return HttpResponseRedirect(reverse("home"))
else:
resp = checkauth_exp_api(auth)
if resp["ok"] == False:
# authenticator is not a match
logout(request)
if resp["ok"] == True:
user_id = resp["resp"]["user_id"]
logged_in = True
resp = isuservendor_exp_api(user_id)
if resp["ok"] == True:
is_vendor = resp["resp"]["is_vendor"]
details["is_vendor"] = is_vendor
if is_vendor == True:
details["vendor_id"] = resp["resp"]["vendor_id"]
details["vendor_name"] = resp["resp"]["vendor_name"]
# Return to home page if user is not a vendor
else:
return HttpResponseRedirect(reverse("home"))
else:
return HttpResponseRedirect(reverse("home"))
# Generate empty form if first time to page
if request.method != "POST":
newEntreeForm = NewEntreeForm()
next = request.GET.get("next") or reverse("newEntree")
return render(
request, "new_entree.html", {"next": next, "newEntreeForm": newEntreeForm, "logged_in": logged_in}
)
# Get the vendor associated with the currently logged in user
vendor_id = details["vendor_id"]
newEntreeForm = NewEntreeForm(request.POST)
if not newEntreeForm.is_valid():
return render(
request,
"new_entree.html",
{"state": "Invalid Input", "newEntreeForm": newEntreeForm, "logged_in": logged_in},
)
# Get the entree data from form
entree_name = newEntreeForm.cleaned_data["name"]
entree_description = newEntreeForm.cleaned_data["description"]
entree_price = newEntreeForm.cleaned_data["price"]
post_data = {
"entree_name": entree_name,
"entree_description": entree_description,
"entree_price": entree_price,
"vendor_id": vendor_id,
}
post_encoded = urllib.parse.urlencode(post_data).encode("utf-8")
req = urllib.request.Request("http://" + settings.EXP_API + ":8000/api/addEntree", data=post_encoded, method="POST")
resp_json = urllib.request.urlopen(req).read().decode("utf-8")
resp = json.loads(resp_json)
if resp["ok"] == False:
return render(
request,
"new_entree.html",
{
"state": "Could not add entree to database or Kafka topic does not yet exist. Please try again.",
"newEntreeForm": newEntreeForm,
"logged_in": logged_in,
},
)
# else:
# return render(request, "new_entree.html", {'state': "You've succesfully added an entree", 'newEntreeForm': newEntreeForm})
# reset cache page for vendor
complete = expire_view_cache(request, "vendor", [vendor_id])
if complete or not complete: # this line is so that the cache is reset before the page is returned
return HttpResponseRedirect(reverse("vendor", args=[vendor_id]))
