Files
cis-enhanced/app/cis.py
T
Nicolas Gruber 32b4dc4823 CIS Enhanced: FastAPI-App für LV-Plan, Studiengangs-Pläne und Namenslisten des FH-Burgenland-CIS
- Studentenplan (eigene/fremde Matrikelnummer) mit Wochenansicht, Semesterübersicht, iCal/CSV-Export
- Studiengangs-Pläne nach StG/Semester/Verband mit Gruppen-Filter
- Namenslisten mit Suche, Matrikel-Decode und CSV-Export
- Studiennummer-Decoder auf der Startseite
- Docker (Dockerfile, Compose) und Caddy-Beispiel für Deploy
2026-10-15 16:27:52 +02:00

277 lines
11 KiB
Python

"""CIS API client for FH-Burgenland (basic auth, HTML/iCal scraping)."""
import re
import time
from dataclasses import dataclass, field
from datetime import datetime, timedelta, timezone
from functools import lru_cache
from typing import Optional
import requests
from bs4 import BeautifulSoup
TZ = timezone(timedelta(hours=1)) # Europe/Vienna winter; events carry their own tz, we just parse naive
SLOTS = [
"08:30", "09:30", "10:15", "11:15", "12:00",
"13:00", "14:00", "14:45", "15:45", "16:30",
"17:45", "18:30", "19:30", "20:15", "21:00",
]
SLOT_ENDS = [
"09:15", "10:15", "11:00", "12:00", "12:45",
"13:45", "14:45", "15:30", "16:30", "17:15",
"18:30", "19:15", "20:15", "21:00", "21:45",
]
@dataclass
class Event:
lv: str
lektor: str
gruppe: str
ort: str
start: datetime # naive, Vienna wall time
end: datetime
uid: str = ""
@property
def date(self):
return self.start.date()
@property
def weekday(self):
return self.start.weekday() # 0=Mon
@property
def hours(self):
return round((self.end - self.start).total_seconds() / 3600, 2)
@dataclass
class Person:
uid: str
name: str
stg: str
semester: str
verband: str
gruppe: str
@dataclass
class Student:
nachname: str
vorname: str
geschlecht: str
mail: str
matrikel: str = ""
@property
def name(self):
return f"{self.nachname}, {self.vorname}"
def parse_ical(text: str) -> list[Event]:
events = []
for block in re.findall(r"BEGIN:VEVENT(.*?)END:VEVENT", text, re.S):
fields = {}
for line in block.strip().splitlines():
if ":" in line:
key, _, val = line.partition(":")
fields[key.split(";")[0].upper()] = val
desc = fields.get("DESCRIPTION", "").replace("\\n", "\n").split("\n")
desc = [d.strip() for d in desc if d.strip()]
lv, lektor, gruppe, ort = (desc + ["", "", "", ""])[:4]
if not lv:
m = re.match(r"^\s*(\S+)\s+(.*)$", fields.get("SUMMARY", ""))
lv = m.group(1) if m else fields.get("SUMMARY", "")
ort = m.group(2).strip() if m else ""
if " - " in fields.get("SUMMARY", ""):
gruppe = fields["SUMMARY"].rsplit(" - ", 1)[1].strip()
dtstart = fields.get("DTSTART", "")
dtend = fields.get("DTEND", "")
if not dtstart or not dtend:
continue
start = datetime.strptime(dtstart, "%Y%m%dT%H%M%S")
end = datetime.strptime(dtend, "%Y%m%dT%H%M%S")
if end <= start:
end = start + timedelta(hours=1)
events.append(Event(lv=lv, lektor=lektor, gruppe=gruppe, ort=ort,
start=start, end=end, uid=fields.get("UID", "")))
events.sort(key=lambda e: e.start)
return events
class CISClient:
def __init__(self, user: str, password: str, base_url: str):
self.base = base_url.rstrip("/")
self.s = requests.Session()
self.s.auth = (user, password)
self.s.headers["User-Agent"] = "Mozilla/5.0 (cis-enhanced)"
self._meta_cache: Optional[dict] = None
self._meta_ts = 0.0
# ---------- metadata (stg list, semesters, rooms) ----------
def meta(self, max_age: int = 3600) -> dict:
if self._meta_cache and time.time() - self._meta_ts < max_age:
return self._meta_cache
html = self._get(f"{self.base}/private/lvplan/index.php")
soup = BeautifulSoup(html, "html.parser")
selects: dict[str, list[tuple[str, str]]] = {}
for s_ in soup.find_all("select"):
name = s_.get("name") or ""
opts = [(o.get("value") or "", o.get_text(" ", strip=True)) for o in s_.find_all("option")]
if name not in selects or len(opts) > len(selects[name]):
selects[name] = opts
stgs = []
for vz, label in selects.get("stg_kz", []):
if not vz:
continue
m = re.match(r"^(\S+)\s+\((.*)\)$", label)
stgs.append({"kz": vz, "code": m.group(1) if m else vz,
"name": m.group(2) if m else label})
semesters = []
for raw, label in selects.get("begin", []):
m = re.match(r"^(\d+)&ende=(\d+)$", raw or "")
if not m:
continue
semesters.append({"label": label, "begin": int(m.group(1)),
"ende": int(m.group(2))})
semesters.sort(key=lambda s: s["begin"], reverse=True)
rooms = []
for raw, label in selects.get("select", []):
if "ort_kurzbz=" not in raw:
continue
ort = raw.split("ort_kurzbz=")[1].split("&")[0]
m = re.match(r"^(\S+)\s+\((.*)\)$", label)
rooms.append({"kurzbz": ort, "code": m.group(1) if m else ort,
"name": m.group(2) if m else label})
self._meta_cache = {
"stgs": stgs,
"semesters": semesters,
"rooms": rooms,
"verbands": ["V", "B", "A", "C", "D", "E", "F"],
"grps": [str(i) for i in range(1, 7)],
}
self._meta_ts = time.time()
return self._meta_cache
# ---------- low level ----------
def _get(self, url: str, **kw) -> str:
r = self.s.get(url, timeout=30, **kw)
r.raise_for_status()
return r.text
def _ical_url(self, params: dict) -> str:
q = "&".join(f"{k}={v}" for k, v in params.items())
return f"{self.base}/private/lvplan/stpl_kalender.php?{q}"
def _ical_student_params(self, uid: str, begin: int, ende: int) -> dict:
return {"type": "student", "pers_uid": uid, "ort_kurzbz": "",
"stg_kz": "", "sem": "", "ver": "", "grp": "",
"gruppe_kurzbz": "", "lva": "", "begin": begin, "ende": ende,
"format": "ical", "version": "2", "target": "ical"}
def _ical_stg_params(self, kz: str, sem: str, ver: str, grp: str,
begin: int, ende: int) -> dict:
return {"type": "verband", "stg_kz": kz, "sem": sem, "ver": ver,
"grp": grp, "begin": begin, "ende": ende,
"format": "ical", "version": "2", "target": "ical"}
# ---------- events ----------
def student_events(self, uid: str, begin: int, ende: int) -> list[Event]:
return parse_ical(self._get(self._ical_url(self._ical_student_params(uid, begin, ende))))
def stg_events(self, kz: str, sem: str, ver: str, grp: str,
begin: int, ende: int) -> list[Event]:
return parse_ical(self._get(self._ical_url(self._ical_stg_params(kz, sem, ver, grp, begin, ende))))
def ical_raw(self, kind: str, **kw) -> str:
if kind == "student":
return self._get(self._ical_url(self._ical_student_params(kw["uid"], kw["begin"], kw["ende"])))
return self._get(self._ical_url(self._ical_stg_params(kw["kz"], kw["sem"], kw["ver"], kw.get("grp", ""), kw["begin"], kw["ende"])))
# ---------- person ----------
@lru_cache(maxsize=256)
def person(self, uid: str) -> Optional[Person]:
try:
html = self._get(f"{self.base}/private/lvplan/stpl_week.php?pers_uid={uid}")
except requests.HTTPError:
return None
t = re.sub(r"<[^>]+>", " ", html)
t = re.sub(r"\s+", " ", t)
m = re.search(r"Person:\s*(.+?)\s*-\s*(\d{9,10}).*?Studiengang:\s*(.+?)\s+Semester:\s*(\S+?)\s+Verband:\s*(\S+?)\s+Gruppe:", t)
if not m:
return None
name, u, stg, sem, ver = m.groups()
return Person(uid=u, name=name.strip(), stg=stg.strip(),
semester=sem.strip(), verband=ver.strip(), gruppe="")
# ---------- Namensliste ----------
def namensliste(self, kz: str, sem: str, ver: str) -> list[Student]:
html = self._get(f"{self.base}/private/stud_in_grp.php?kz={kz}&sem={sem}&verband={ver}")
soup = BeautifulSoup(html, "html.parser")
tbl = soup.find("table", class_="tablesorter")
out = []
if not tbl:
return out
# columns: [checkbox?, nachname, vorname, geschlecht, mail]
for tr in tbl.find_all("tr")[1:]:
cells = [c.get_text(" ", strip=True) for c in tr.find_all(["td", "th"])]
if not cells or not any(cells):
continue
# drop leading checkbox column if present
if len(cells) == 5 and not cells[0]:
cells = cells[1:]
if len(cells) < 4:
continue
nachname, vorname, geschlecht, mail = cells[0], cells[1], cells[2], cells[3]
if not nachname and not vorname:
continue
out.append(Student(nachname=nachname, vorname=vorname,
geschlecht=geschlecht, mail=mail,
matrikel=mail.split("@")[0] if "@" in mail else ""))
return out
# ---------- Verbände pro StG/Semester ----------
def verbands_for(self, kz: str, sem: str) -> list[str]:
fallback = ["V", "B", "G", "A", "C", "D", "E", "F"]
try:
r = self.s.post(f"{self.base}/private/lvplan/lvplan_autocomplete.php",
data={"autocomplete": "getVerband", "stg_kz": kz, "sem": sem},
timeout=30)
data = r.json()
if isinstance(data, dict):
vals = list(data.values())
else:
vals = data
vals = [str(v).strip() for v in vals if str(v).strip()]
return vals or fallback
except Exception:
return fallback
# ---------- detail (LV details for one slot) ----------
def detail(self, kind: str, datum: str, stunde: int, uid: str = "",
kz: str = "", sem: str = "", ver: str = "", grp: str = "",
ort: str = "") -> dict:
if kind == "student":
url = (f"{self.base}/private/lvplan/stpl_detail.php?type=student&datum={datum}"
f"&stunde={stunde}&pers_uid={uid}&stg_kz={kz}&sem={sem}&ver={ver}"
f"&grp= {grp}&ort_kurzbz={ort}")
else:
url = (f"{self.base}/private/lvplan/stpl_detail.php?type=verband&datum={datum}"
f"&stunde={stunde}&stg_kz={kz}&sem={sem}&ver={ver}"
f"&grp={grp}&ort_kurzbz={ort}")
html = self._get(url)
soup = BeautifulSoup(html, "html.parser")
headers, data_row = [], None
for tr in soup.find_all("tr"):
ths = tr.find_all("th")
tds = tr.find_all("td")
if ths and not tds:
headers = [th.get_text(strip=True) for th in ths]
elif tds and not ths:
data_row = [td.get_text(" ", strip=True) for td in tds]
if not headers or not data_row:
return {}
return {h: data_row[i] for i, h in enumerate(headers) if i < len(data_row)}