def certify_transcript_single(request):
if request.method == 'POST':
student_id = request.POST['student_id']
payload = {
'commitment': hashlib.sha256(os.urandom(8)).hexdigest(),
'student_id': student_id,
'recipient': request.POST['recipient'],
'gpa': request.POST['gpa'],
'date': request.POST['date']
}
# Be careful here; remember that changing the way the document
# is formatted will create different hashes. We also eliminate
# space b/w separators so that when we recreate the document
# client-side, we get the same string representation for hashing.
document = json.dumps(payload, sort_keys=True, separators=(',', ':'))
resp = requests.post(create_rpc_url('/certify/Transcript/'+student_id),
data=document)
if resp.status_code == 200 and resp.text == 'OK':
messages.success(request,\
'The transcript has been submitted to the network for certification.')
else:
messages.error(request,\
'An error occurred while processing your \
certification request: ' + resp.text)
return redirect(reverse('certchain:certify'))
raise Http404
def certify_transcript_batch(request):
if request.method == 'POST':
batch_csv = request.POST['batch_contents']
documents = []
for row in batch_csv.split('\n'):
cols = row.split(',')
if len(cols) == 4:
doc = {
'commitment': hashlib.sha256(os.urandom(8)).hexdigest(),
'student_id': cols[0],
'recipient': cols[1],
'gpa': cols[2],
'conferral_date': cols[3]
}
documents.append(json.dumps(doc, sort_keys=True, separators=(',', ':')))
# Be careful here; remember that changing the way the document
# is formatted will create different hashes. We also eliminate
# space b/w separators so that when we recreate the document
# client-side, we get the same string representation for hashing.
payload = json.dumps(documents)
resp = requests.post(create_rpc_url('/certify/Transcript'),
data=payload)
if resp.status_code == 200 and resp.text == 'OK':
messages.success(request,\
'The transcripts have been submitted to the network for certification.')
else:
messages.error(request,\
'An error occurred while processing your \
certification request: ' + resp.text)
return redirect(reverse('certchain:certify'))
raise Http404
def overview(request):
try:
resp = requests.get(create_rpc_url('/network'))
return render(request, 'certchain/overview.html',\
{'network' : resp.json()})
except Exception as ex:
messages.error(request, 'Your institution\'s CertChain node \
is not available at this time.')
return render(request, 'certchain/overview.html', {})
def manage_certifications(request):
try:
resp = requests.get(create_rpc_url('/all_certifications'))
return render(request, 'certchain/certifications.html',\
{'certifications' : resp.json()})
except Exception as ex:
messages.error(request, 'Your institution\'s CertChain node \
is not available at this time: ' + str(ex))
return render(request, 'certchain/certifications.html', {})
def get_document(request, docid, type):
try:
resp = requests.get(create_rpc_url('/document/' + docid))
json = resp.json()
return render(request, 'public/'+ type + '.html',
{'docid' : docid, 'doc' : json['contents'], 'raw_data': resp.text})
except Exception as ex:
messages.error(request, 'Unable to retrieve ' + type + ' at this time: ' + str(ex))
return redirect(reverse('certchain:manage_certifications'))
def end_peering(request):
if request.method == 'POST':
addr = request.POST['addr']
resp = requests.post(create_rpc_url('/end_peering/' + addr))
if resp.status_code == 200 and resp.text == 'OK':
messages.success(request,\
'Your peering termination request was successfully submitted.')
else:
messages.error(request,\
'An error occurred while processing your \
peering termination request: ' + resp.text)
return redirect(reverse('certchain:overview'))
raise Http404
def approve_peer_request(request):
if request.method == 'POST':
addr = request.POST['requesting_addr']
resp = requests.post(create_rpc_url('/approve_peerreq/' + addr))
if resp.status_code == 200 and resp.text == 'OK':
messages.success(request,\
'Your approval was submitted successfully.')
else:
messages.error(request,\
'An error occurred while processing your \
peer request approval: ' + resp.text)
return redirect(reverse('certchain:overview'))
raise Http404
def remove_node(request):
if request.method == 'POST':
inst_addr = request.POST['inst_addr']
resp = requests.post(create_rpc_url('/remove_node/' + inst_addr))
if resp.status_code == 200 and resp.text == 'OK':
messages.success(request,\
'The node was removed from the list of known nodes.')
else:
messages.error(request,\
'An error occurred while removing the node you specified: '
+ str(resp.text))
return redirect(reverse('certchain:overview'))
raise Http404
def revoke_document(request):
if request.method == 'POST':
docid = request.POST['docid_to_revoke']
resp = requests.post(create_rpc_url('/revoke/' + docid))
if resp.status_code == 200:
messages.success(request,\
'Your document revocation request has been submitted to the network.')
else:
messages.error(request,\
'An error occurred while processing your revocation \
request: ' + str(resp.status_code))
return redirect(reverse('certchain:manage_certifications'))
raise Http404
def student(request, student_id):
try:
resp = requests.get(create_rpc_url('/certifications_by_student_id/' + student_id))
certs_by_type = defaultdict(list)
for c in resp.json():
certs_by_type[c['doc_type']].append(c)
return render(request, 'public/student.html',\
{'certs_by_type' : certs_by_type.iteritems(),
'student_id': student_id,
})
except Exception as ex:
messages.error(request, 'Your institution\'s CertChain node \
is not available at this time: ' + str(ex))
return render(request, 'public/student.html', {'student_id': student_id})
def add_node(request):
if request.method == 'POST':
payload = {
'hostname': request.POST['hostname'],
'port': request.POST['port'],
'address': request.POST['address']
}
resp = requests.post(create_rpc_url('/add_node'),
data=json.dumps(payload))
if resp.status_code == 200 and resp.text == 'OK':
messages.success(request,\
'The node was added to the list of known nodes.')
else:
messages.error(request,\
'An error occurred while adding the node you specified: '
+ str(resp.text))
return redirect(reverse('certchain:overview'))
raise Http404
def documents(request):
studentId = request.session.get('studentId')
if (studentId):
try:
resp = requests.get(create_rpc_url('/certifications_by_student_id/' +
studentId))
certs_by_type = defaultdict(list)
for c in resp.json():
print c['doc_id']
certs_by_type[c['doc_type']].append(c)
print 'yoo'
return render(request, 'student/documents.html',\
{'certs_by_type' : certs_by_type.iteritems(),
'studentId': studentId,
})
except Exception as ex:
messages.error(request, 'Your institution\'s CertChain node \
is not available at this time: ' + str(ex))
return render(request, 'student/documents.html', {'studentId': studentId})
else:
return HttpResponse("Yooo", content_type='text/plain')
def raw_block(request, block_height):
resp = requests.get(create_rpc_url('/block/' + block_height))
return HttpResponse(resp.text, content_type='application/json')
def raw_document(request, docid):
resp = requests.get(create_rpc_url('/document/' + docid))
return HttpResponse(resp.text, content_type='application/json')
