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kreta_v2.py
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kreta_v2.py
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#!/usr/bin/env python3
# Made in 2020 by https://github.com/bczsalba
# MIT License
import requests,json,hmac,base64,hashlib,datetime
class Kreta:
def base(ist):
return f"https://{ist}.ekreta.hu"
IDP = "https://idp.e-kreta.hu"
ADMIN = "https://eugyintezes.e-kreta.hu"
FILES = "https://files.e-kreta.hu"
class KretaEndpoints:
token = "/connect/token"
nonce = "/nonce"
notes = "/ellenorzo/V3/Sajat/Feljegyzesek"
events = "/ellenorzo/V3/Sajat/FaliujsagElemek"
student = "/ellenorzo/V3/Sajat/TanuloAdatlap"
evaluations = "/ellenorzo/V3/Sajat/Ertekelesek"
absences = "/ellenorzo/V3/Sajat/Mulasztasok"
groups = "/ellenorzo/V3/Sajat/OsztalyCsoportok"
classAverages = "/V3/Sajat/Ertekelesek/Atlagok/OsztalyAtlagok"
timetable = "/ellenorzo/V3/Sajat/OrarendElemek"
announcedTests = "/ellenorzo/V3/Sajat/BejelentettSzamonkeresek"
homeworks = "/ellenorzo/V3/Sajat/HaziFeladatok"
homeworkDone = "/ellenorzo/V3/Sajat/HaziFeladatok/Megoldva"
capabilities = "/ellenorzo/V3/Sajat/Intezmenyek"
class AdminEndpoints:
sendMessage = "/api/v1/kommunikacio/uzenetek"
def getAllMessages(endpoint):
return f"/api/v1/kommunikacio/postaladaelemek/{endpoint}"
def getMessage(id):
return f"/api/v1/kommunikacio/postaladaelemek/{id}"
recipientCategories = "/api/v1/adatszotarak/cimzetttipusok"
availableCategories = "/api/v1/kommunikacio/cimezhetotipusok"
recipientsTeacher = "/api/v1/kreta/alkalmazottak/tanar"
uploadAttachment = "/ideiglenesfajlok"
def downloadAttachment(id):
return "/v1/dokumentumok/uzenetek/$id";
trashMessage = "/api/v1/kommunikacio/postaladaelemek/kuka"
deleteMessage = "/api/v1/kommunikacio/postaladaelemek/torles"
class User:
def __init__(self,usr,pwd,ist,fromDate=None,toDate=None):
self.usr = usr
self.pwd = pwd
self.ist = ist
# userAgent and clientID
self.userAgent = "hu.ekreta.student/1.0.5/Android/0/0"
self.clientID = "kreta-ellenorzo-mobile-android"
self.bearer = self.getToken()
# headers used for operation other than token
self.headers = {
"Authorization": f"Bearer {self.bearer}",
"User-Agent": self.userAgent
}
def getToken(self):
# gets access token
# headers: special to token
key = bytes([98, 97, 83, 115, 120, 79, 119, 108, 85, 49, 106, 77])
nonce = (requests.get(Kreta.IDP+KretaEndpoints.nonce)).text
message = bytes(self.ist.upper()+nonce+self.usr.upper(), 'utf-8')
dig = hmac.HMAC(key, message, hashlib.sha512).digest()
generated = base64.b64encode(dig).decode()
headers = {"Content-Type": "application/x-www-form-urlencoded; charset=utf-8",
"User-Agent": "hu.ekreta.student/1.0.5/Android/0/0",
"X-AuthorizationPolicy-Key" : generated,
"X-AuthorizationPolicy-Version" : "v2",
"X-AuthorizationPolicy-Nonce" : nonce}
# data to send
data = {
"userName": self.usr,
"password": self.pwd,
"institute_code": self.ist,
"grant_type": "password",
"client_id": self.clientID
}
# url: https://idp.e-kreta.hu/connect/token
response = requests.post(
Kreta.IDP+
KretaEndpoints.token,
headers=headers,
data=data
)
try:
return json.loads(response.text)["access_token"]
except KeyError:
# occasionally it gives a 502 error
return response.text
def getEvaluations(self):
# returns evaluations (technically has a from-to data optional parameter)
# url: https://{ist}.ekreta.hu/ellenorzo/V3/Sajat/Ertekelesek
response = requests.get(
Kreta.base(self.ist)+KretaEndpoints.evaluations,
headers=self.headers
)
evaluations = sorted(response.json(), key=lambda x: datetime.datetime.strptime(x['KeszitesDatuma'], '%Y-%m-%dT%H:%M:%SZ'), reverse=True)
return evaluations
def getAbsences(self):
# url: https://{ist}.ekreta.hu/ellenorzo/V3/Sajat/Mulasztasok
response = requests.get(
Kreta.base(self.ist)+KretaEndpoints.absences,
headers=self.headers
)
return response.text
def getTimetable(self,fromDate,toDate):
# returns array containing lessons from fromDate to toDate
if not fromDate or not toDate:
fromDate = "2020-09-01"
toDate = "2020-09-08"
# url: https://{ist}.ekreta.hu/ellenorzo/V3/Sajat/OrarendElemek
response = requests.get(
Kreta.base(self.ist)+KretaEndpoints.timetable,
params = {
"datumTol": fromDate,
"datumIg": toDate
},
headers = self.headers
)
return response.text
def getApiLinks(self):
# not really needed for the class
response = requests.get(
"http:https://kretamobile.blob.core.windows.net/configuration/ConfigurationDescriptor.json"
)
return response.text
def getMessages(self,typeOrId):
# url: https://eugyintezes.e-kreta.hu/api/v1/kommunikacio/postaladaelemek/{typeOrId}
response = requests.get(
Kreta.ADMIN+AdminEndpoints.getAllMessages(typeOrId),
headers=self.headers
)
return response.text
def getAnnounced(self,date=None):
# returns announced tests/exams
params = ( {"datumTol": date } if date else None)
response = requests.get(
Kreta.base(self.ist)+KretaEndpoints.announcedTests,
headers = self.headers,
params = params
)
return response.text
def getNotes(self,date=None):
# returns announced tests/exams
params = ( {"datumTol": date } if date else None)
response = requests.get(
Kreta.base(self.ist)+KretaEndpoints.notes,
headers = self.headers,
params = params
)
return response.text
def getInfo(self):
# returns info about the student
response = requests.get(
Kreta.base(self.ist)+KretaEndpoints.student,
headers = self.headers,
)
return response.text
#--------------------------------------------------------------
if __name__ == "__main__":
print(User('username','password','institute').getInfo())