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api.py
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api.py
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#!/usr/bin/env python3
#strftime reference: https://strftime.org/
import requests,json,datetime,sys,os
import http.client as httplib
import time as timeModule
from random import randint
tWidth = os.get_terminal_size()[0]
verboseGlobal = True
log = None
def dbg(s):
if verboseGlobal == True:
_str = f'[{str(datetime.datetime.now().time())[:-7]}]: {s}'
pad = int(tWidth/2-_str.index(': ')-3)*' '
print(pad+_str)
if log == None:
return
else:
log(s,show=0)
def connected():
conn = httplib.HTTPConnection("8.8", timeout=1)
try:
conn.request("HEAD", "/")
conn.close()
return True
except Exception as e:
conn.close()
return False
def Bearer(user,pwd,ist):
headers = {
'Content-Type': 'application/x-www-form-urlencoded; charset=utf-8',
'User-Agent': 'hu.ekreta.student/1.0.5/Android/0/0'
}
data = {
'userName': user,
'password': pwd,
'institute_code': ist,
'grant_type': 'password',
'client_id': "kreta-ellenorzo-mobile"
}
try:
maci = requests.post('https://idp.e-kreta.hu/connect/token', headers=headers, data=data)
except requests.exceptions.ConnectionError:
if not connected():
return 'offline'
else:
print('Invalid institute name.'.center(tWidth))
return 'err: invalid_institute'
#maci = requests.post('https://{}.e-kreta.hu/idp/api/v1/Token'.format(ist), headers=headers)
if maci:
try:
maci = json.loads(maci.text)['access_token']
except KeyError as e:
print(str(e))
return 'err: invalid_response'
except Exception as e:
dbg(str(e))
print('Bad response from Kreta, the server is likely offline.'.center(tWidth))
print(f'For more info check {ist}.ekreta.hu.'.center(tWidth))
if input(''): pass
return 'offline'
else:
print(maci.text.center(tWidth))
dbg('Maci acquired.')
return maci
class Student:
def __init__(self,usr=None,pwd=None,ist=None,verbose=None,timetable=True,jsonLocation=None,offline=False,logger=None):
global log
if not logger == None:
log = logger
##assigning verbose boolean for dbg prints
global verboseGlobal
if not verbose == None:
verboseGlobal = verbose
##store user data
self.usr = usr
self.pwd = pwd
self.ist = ist
self.jsonLocation = (jsonLocation if jsonLocation else os.path.join(os.path.dirname(__file__),'storage/marks.py'))
self.offline = offline
def start(self):
dbg('Starting API')
if not self.offline:
self.maci = Bearer(self.usr,self.pwd,self.ist)
else:
self.maci = 'offline'
if 'err: ' in self.maci:
return self.maci
##checking if something went wrong during maci
if self.maci == 'offline':
dbg(f'Offline mode, maci: {self.maci}')
##assign attributes based on old file
try:
import marks
self.name = marks.name
self.marks = marks.marks
self.subjectsList = marks.subjectsList
try: self.timetable = marks.timetable
except: pass
return
except Exception as e:
print(str(e))
return
##defining headers for marks and timetable to use
self.headers = {
"Authorization": "Bearer "+self.maci,
"User-Agent": "hu.ekreta.student/1.0.5/Android/0/0"
}
##getting marks, timetable
self.marks,self.subjectsList = self.getMarks()
try:
import forcett
self.timetable = forcett.timetable
except:
self.timetable = Timetable(self).get()
#with open('dev/newTTFormatted.json','w') as f:
# f.write(json.dumps(self.timetable,indent=4,ensure_ascii=False))
self.bdayDate, today = self.getBirthday()
self.isBday = (today == self.bdayDate)
##saving data
self.serialize()
dbg('API initialized.')
#get marks, return a list
def getMarks(self):
##make connection
dbg('Getting marks...')
marksResponse = requests.get(f'https://{self.ist}.ekreta.hu/ellenorzo/V3/Sajat/Ertekelesek', headers=self.headers)
self.marksText = marksResponse.text
#with open('dev/sample_marks','w') as f:
# f.write(self.marksText)
##filter data
marks = []
subjectsList = []
mk = json.loads(self.marksText)
dbg('Sorting marks...')
for mark in mk:
subject = mark['Tantargy']['Nev']
theme = mark['Tema']
_type = mark['Tipus']['Nev']
value = mark['SzamErtek']
if value == None:
value = mark['SzovegesErtek']
weight = mark['SulySzazalekErteke']
teacher = mark['ErtekeloTanarNeve']
dateFull = mark['RogzitesDatuma']
date = dateFull.split('T')[0]
time = dateFull.split('T')[1][:-4]
# set type to proper universal value
if _type == 'felevi_jegy_ertekeles':
theme = 'Half term result'
weight = 100
_type = "HalfTerm"
elif _type == 'evvegi_jegy_ertekeles':
theme = 'End of term result'
weight = 100
_type = "EndOfTerm"
elif _type == 'evkozi_jegy_ertekeles':
_type = "MidTerm"
## add subject to subjectsList if not in there already
if not subject in subjectsList and subject:
subjectsList.append(subject)
## create marks dict
if subject:
marks.append(
{
'subject': subject,
'theme': theme,
'type': _type,
'value': value,
'weight': weight,
'date': date,
'time': time
}
)
##sort data
marks.sort(key=lambda x: [x['date'],x['time']])
##return a list containing mark dicts
return marks,subjectsList
#get info about user
def getBirthday(self):
# returns info about the student
response = requests.get(
'https://'+self.ist+'.ekreta.hu/ellenorzo/V3/Sajat/TanuloAdatlap',
headers = self.headers,
)
info = json.loads(response.text)
self.name = info['Nev']
#get birthday
self.bdayDate = info['SzuletesiDatum'].split('T')[0].split('-')[1:]
self.bdayDate[1] = str(int(self.bdayDate[1])+1)
if len(self.bdayDate[1]) == 1:
self.bdayDate[1] = '0'+self.bdayDate[1]
today = str(timeModule.strftime('%m-%d'))
return '-'.join(self.bdayDate), today
##store data in a json file self.jsonLocation (assigned at creation)
def serialize(self):
with open(self.jsonLocation,'wb') as mks:
mks.write(b'# these are needed because im importing the module and not json\n')
mks.write(b'null = None\n')
mks.write(b'false = False\n')
mks.write(b'true = True\n\n')
##convert lists to json
mksJson = json.dumps(self.marks,ensure_ascii=False,indent=4)
subListJson = json.dumps(self.subjectsList,ensure_ascii=False,indent=4)
ttJson = json.dumps(self.timetable,ensure_ascii=False,indent=4)
##write json to file
mks.write(b'# data\n')
mks.write((f'usr = \'{self.usr}\'\n').encode('utf-8'))
mks.write((f'name = \'{self.name}\'\n\n').encode('utf-8'))
mks.write((f'bday = {self.isBday}\n\n').encode('utf-8'))
mks.write((f'marks = {mksJson}\n\n').encode('utf-8'))
mks.write((f'subjectsList = {subListJson}\n\n').encode('utf-8'))
mks.write((f'timetable = {ttJson}').encode('utf-8'))
##on delete delete imported module if exists
def __del__(self):
if 'marks' in sys.modules:
del sys.modules['marks']
class Timetable:
def __init__(self,student,start=None,end=None):
self.parent = student
self.ist = self.parent.ist
#if we dont have both dates we get them
if any((val == None for val in [start,end])):
self.start,self.end,self.currentDay = self.getDates()
def getDates(self):
##get current day, current weekday int, store current day
startDate = datetime.date.today()
start = datetime.date.today().weekday()
current = str(startDate)
##while we're not on a monday continue
while not start == 0:
startDate = startDate-datetime.timedelta(days=1)
start = startDate.weekday()
endDate = startDate+datetime.timedelta(days=6)
##return start,end
return startDate,endDate,current
def get(self):
##separate on and offline mode
if not self.parent.offline == False:
from marks import timetable
return timetable
##make connection
dbg('Getting timetable...')
headers = self.parent.headers
params = {
'datumTol': f'{self.start}',
'datumIg': f'{self.end}'
}
ttResponse = requests.get(
f'https://{self.ist}.ekreta.hu/ellenorzo/V3/Sajat/OrarendElemek',
headers=headers,
params=params
)
#with open('dev/newTT.json','w') as f:
# f.write(ttResponse.text)
##filter data
days = [ [],[],[],[],[] ]
dbg('Sorting timetable...')
tt = json.loads(ttResponse.text)
day = []
previous = None
for lesson in tt:
if lesson['Tipus']['Nev'] == 'TanevRendjeEsemeny':
continue
startdate = lesson['KezdetIdopont']
# get date info as string
date = startdate.split('T')[0]
startStr = ':'.join(startdate.split('T')[1][:-1].split(':')[:-1])
endStr = ':'.join(lesson['VegIdopont'].split('T')[1][:-1].split(':')[:-1])
# convert it to local time
## get datetime objects
start = datetime.datetime.strptime(startStr,"%H:%M")
end = datetime.datetime.strptime(endStr,"%H:%M")
## do the conversion
startDT = self.convertToLocal(start)
endDT = self.convertToLocal(end)
# convert back to string
start = startDT.strftime("%H:%M")
end = endDT.strftime("%H:%M")
if not lesson['Tantargy']:
subject = None
else:
subject = lesson['Tantargy']['Kategoria']['Leiras']
classroom = lesson['TeremNeve']
teacher = lesson['TanarNeve']
theme = lesson['Tema']
##create day dict
formattedLesson = {
'date': date,
'start': start,
'end': end,
'subject': subject,
'classroom': classroom,
'teacher': teacher,
'theme': theme,
'isCurrent': self.isCurrent(start,end,date)
}
if date == previous or previous == None:
day.append(formattedLesson)
else:
dIndex = datetime.datetime.strptime(date,"%Y-%m-%d").weekday()
days[dIndex-1] = day
day = [formattedLesson]
previous = date
##return a compound list containing each days lessons
days[-1] = day
return days
def isCurrent(self,_start,_end,_date):
##convert start,end to datetime objects
start = datetime.datetime.strptime(_start, '%H:%M').time()
end = datetime.datetime.strptime(_end, '%H:%M').time()
#get current
currentDay = _date
current = datetime.datetime.now().time()
#return if current is between start&end and the days match
return (True if (start < current < end and currentDay == self.currentDay) else False)
def convertToLocal(self,dt):
now = timeModule.time()
offset = datetime.datetime.fromtimestamp(now) - datetime.datetime.utcfromtimestamp(now)
return dt + offset