WorldTeacher
5e37b57c9b
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112 lines
4.1 KiB
Python
Executable File
112 lines
4.1 KiB
Python
Executable File
import os
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import re
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import smtplib
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from email.mime.text import MIMEText
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from typing import Optional
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from xml.etree.ElementTree import Element, SubElement, tostring
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from dotenv import load_dotenv
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from fastapi import FastAPI, Form, HTTPException, Request, status
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from fastapi.responses import HTMLResponse, RedirectResponse
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from fastapi.staticfiles import StaticFiles
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from fastapi.templating import Jinja2Templates
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load_dotenv()
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app = FastAPI()
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templates = Jinja2Templates(directory="app/templates")
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# Serve static files (CSS, images)
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app.mount("/static", StaticFiles(directory="app/static"), name="static")
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# add somewhere near the top-level constants
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EMAIL_REGEX = re.compile(r"^[^@\s]+@[^@\s]+\.[^@\s]+$")
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# SMTP / email configuration via environment
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SMTP_HOST = os.getenv("SMTP_HOST", "smtp")
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SMTP_PORT = int(os.getenv("SMTP_PORT", "25"))
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SENDER_MAIL = os.getenv("SENDER_MAIL", "noreply@example.com")
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MAIL_TO = os.getenv("MAIL_TO", "destination@example.com")
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MAIL_USERNAME = os.getenv("MAIL_USERNAME")
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MAIL_PASSWORD = os.getenv("MAIL_PASSWORD")
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print(
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f"Using SMTP server {SMTP_HOST}:{SMTP_PORT} with user {MAIL_USERNAME}"
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f" to send from {SENDER_MAIL} to {MAIL_TO}"
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)
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@app.get("/", response_class=HTMLResponse)
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async def show_form(request: Request):
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return templates.TemplateResponse("form.html", {"request": request})
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@app.post("/submit")
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async def handle_form(
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request: Request,
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name: str = Form(...),
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lastname: str = Form(...),
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title: Optional[str] = Form(None),
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telno: str = Form(...),
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mail: str = Form(...),
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apparatsname: str = Form(...),
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subject: str = Form(...),
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semester_type: str = Form(...), # "summer" or "winter"
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semester_year: str = Form(...),
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dauerapparat: bool = Form(False),
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authorname: list[str] = Form(...),
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year: list[str] = Form(...),
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booktitle: list[str] = Form(...),
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signature: Optional[list[str]] = Form(None),
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):
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# Build XML
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root = Element("form_submission")
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static_data = SubElement(root, "static")
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SubElement(static_data, "name").text = name
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SubElement(static_data, "lastname").text = lastname
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# Title is optional
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SubElement(static_data, "title").text = title or ""
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SubElement(static_data, "telno").text = telno
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SubElement(static_data, "mail").text = mail
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SubElement(static_data, "apparatsname").text = apparatsname
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SubElement(static_data, "subject").text = subject
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SubElement(static_data, "semester").text = f"{semester_type} {semester_year}"
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SubElement(static_data, "dauerapparat").text = "true" if dauerapparat else "false"
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# inside handle_form(), right after parameters are received, before building XML:
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# Basic email validation (server-side)
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if not EMAIL_REGEX.match(mail):
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="Invalid email address format.",
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)
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books = SubElement(root, "books")
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for i in range(len(authorname)):
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book = SubElement(books, "book")
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SubElement(book, "authorname").text = authorname[i]
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SubElement(book, "year").text = year[i]
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SubElement(book, "title").text = booktitle[i]
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# Signature is optional; write empty string if not provided
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sig_value = ""
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if signature and i < len(signature):
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sig_raw = signature[i] or ""
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sig_value = sig_raw.strip()
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SubElement(book, "signature").text = sig_value
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xml_data = tostring(root, encoding="unicode")
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# Send mail
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msg = MIMEText(xml_data, "xml")
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msg["Subject"] = "Antrag für neuen Semesterapparat"
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msg["From"] = SENDER_MAIL
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msg["To"] = MAIL_TO
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with smtplib.SMTP_SSL(SMTP_HOST, SMTP_PORT) as server:
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server.connect(SMTP_HOST, SMTP_PORT)
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# Login only if credentials are provided
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if MAIL_USERNAME and MAIL_PASSWORD:
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server.login(MAIL_USERNAME, MAIL_PASSWORD)
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server.send_message(msg, from_addr=SENDER_MAIL, to_addrs=[MAIL_TO])
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return RedirectResponse("/", status_code=303)
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