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 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 home(request):
auth = request.COOKIES.get('auth')
#initialize dictionary
details = {}
#check whether user is logged in
if not auth:
logged_in = False
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"]
details["user_id"] = 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"]
else:
return HttpResponseRedirect(reverse("home"))
vendors_req = urllib.request.Request('http://' + settings.EXP_API + ':8000/allVendors/')
vendors_resp_json = urllib.request.urlopen(vendors_req).read().decode('utf-8')
resp = json.loads(vendors_resp_json)
vendors = []
if (resp["ok"] == True):
for v in resp["resp"]["vendors"]:
vendors.append({"id": v[0], "name": v[1]})
details["logged_in"] = logged_in
details["vendors"] = vendors
return render(request, "home.html", details)
def vendor(request, vendor_id):
auth = request.COOKIES.get('auth')
details_req = urllib.request.Request('http://' + settings.EXP_API + ':8000/getVendorDetails/' + str(vendor_id))
details_resp_json = urllib.request.urlopen(details_req).read().decode('utf-8')
resp = json.loads(details_resp_json)
# will add locations in here as well, but first have to figure out how to serialize ManyToMany field
if (resp["ok"] == True):
details = resp["resp"]
vendor_id = details["vendor_id"]
vendor_name = details["vendor_name"]
vendor_owner = details["vendor_owner"]
menu = details["menu"]
entrees = details["entrees"]
vendor_locations = details["vendor_locations"]
#check whether user is logged in
if not auth:
logged_in = False
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"]
details["user_id"] = 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["users_vendor_id"] = resp["resp"]["vendor_id"]
details["logged_in"] = logged_in
return render(request, "vendor.html", details)
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]))
