def test_check_hash(self):
hash = "0x1b16b1df538ba12dc3f97edbb85caa7050d46c148134290feba80f8236c83db9"
b = blockchain.Blockchain(url="http://127.0.0.1:7545",
abi=abi,
contract_address=contract_address)
self.assertIsNotNone(b.check_hash(hash),
msg="Hash already exists/ error")
def test_insert_hash(self):
hash = "0x1b16b1df538ba12dc3f97edbb85caa7050d46c148134290feba80f8236c83db9"
b = blockchain.Blockchain(url="http://127.0.0.1:7545",
abi=abi,
contract_address=contract_address)
self.assertIsNone(b.insert_hash(hash),
msg="Error. Inserted hash even if it existed.")
new_hash = "0x1b16b1df538ba12dc3f97edbb85caa7050d46c148134290feba80f8236c83db0"
self.assertIsNotNone(b.insert_hash(new_hash), msg="Insertion failed")
def view(self ,request ,pk): instance = Prescriptions.objects.get(pk=pk) text = instance.text hash_ = Web3.soliditySha3(['string'],[text]) hash_hex = hash_.hex() b = blockchain.Blockchain(url="http://127.0.0.1:7545", abi=abi) b.connect() exists = b.check_hash(hash_hex) return exists , instance
def test_return_hash(self):
hash = "0x1b16b1df538ba12dc3f97edbb85caa7050d46c148134290feba80f8236c83db9"
b = blockchain.Blockchain(url="http://127.0.0.1:7545",
abi=abi,
contract_address=contract_address)
self.assertIsNone(b.return_hash(hash),
msg="Returned hash even it didn't exist. ")
new_hash = "0x1b16b1df538ba12dc3f97edbb85caa7050d46c148134290feba80f8236c83db1"
ret_hash = b.insert_hash(new_hash)
self.assertEqual(new_hash, ret_hash, msg="Hashes not equal")
def download(request, pk):
instance = Prescriptions.objects.get(pk=pk)
text = instance.text
hash_ = Web3.soliditySha3(['string'], [text])
hash_hex = hash_.hex()
if flag1 == False:
b = blockchain.Blockchain(url="http://127.0.0.1:7545", abi=abi)
# flag1=True
b.connect()
exists = b.check_hash(hash_hex)
if exists:
return render(request, 'prescription/prescription_download.html',
{"prescription": instance})
else:
return HttpResponse("<h1>Hash does not exist in blockchain</h1>")
def ocr(request, pk):
if request.method == "GET":
trial = prescription.Prescription()
ocr_instance = trial.ocr(request, pk)
# pk2 = kwargs.get('pk2', none)
text = ocr_instance[0]
prescriptions = ocr_instance[1]
elif request.method == "POST":
# form = forms.VerifyOCRText(request.POST , request.FILES)
# if form.is_valid():
instance = Prescriptions.objects.get(pk=pk)
if instance is not None:
instance.text = request.POST.get('ocr-text', "")
instance.save()
instance = Prescriptions.objects.get(pk=pk)
text = instance.text
hash_ = Web3.sha3(text=text)
hash_hex = hash_.hex()
# print(hash_hex)
# print(hash_)
# print(len(hash_hex))
if flag1 == False:
b = blockchain.Blockchain(url="http://127.0.0.1:7545", abi=abi)
# flag1=True
if b.connect():
inserted = b.insert_hash(hash_hex)
print(inserted)
if inserted:
return redirect('prescription:list')
else:
return HttpResponse('<h1>Push to blockchain failed</h1>')
else:
return HttpResponse("<h1>Connection failed</h1>")
# return redirect('prescription:block' , args=(pk))
# return render(block(request,pk))
else:
return HttpResponse("<h1>Instance is null</h1>")
return render(request, 'prescription/prescription_ocr.html', {
'prescriptions': prescriptions,
'text': text
})
def test_connect(self):
b = blockchain.Blockchain(url="http://127.0.0.1:7545",
abi=abi,
contract_address=contract_address)
self.assertTrue(b.connect(), msg="Connection failed")