add base files

app/main.py

@@ -0,0 +1,88 @@
+import os
+import re
+import smtplib
+from email.mime.text import MIMEText
+from xml.etree.ElementTree import Element, SubElement, tostring
+
+from fastapi import FastAPI, Form, HTTPException, Request, status
+from fastapi.responses import HTMLResponse, RedirectResponse
+from fastapi.staticfiles import StaticFiles
+from fastapi.templating import Jinja2Templates
+
+app = FastAPI()
+templates = Jinja2Templates(directory="app/templates")
+
+# Serve static files (CSS, images)
+app.mount("/static", StaticFiles(directory="app/static"), name="static")
+
+# add somewhere near the top-level constants
+EMAIL_REGEX = re.compile(r"^[^@\s]+@[^@\s]+\.[^@\s]+$")
+
+# SMTP / email configuration via environment
+SMTP_HOST = os.getenv("SMTP_HOST", "smtp")
+SMTP_PORT = int(os.getenv("SMTP_PORT", "25"))
+MAIL_FROM = os.getenv("MAIL_FROM", "noreply@example.com")
+MAIL_TO = os.getenv("MAIL_TO", "destination@example.com")
+
+
+@app.get("/", response_class=HTMLResponse)
+async def show_form(request: Request):
+    return templates.TemplateResponse("form.html", {"request": request})
+
+
+@app.post("/submit")
+async def handle_form(
+    request: Request,
+    name: str = Form(...),
+    lastname: str = Form(...),
+    title: str = Form(...),
+    telno: str = Form(...),
+    mail: str = Form(...),
+    apparatsname: str = Form(...),
+    subject: str = Form(...),
+    semester_type: str = Form(...),  # "summer" or "winter"
+    semester_year: str = Form(...),
+    authorname: list[str] = Form(...),
+    year: list[str] = Form(...),
+    booktitle: list[str] = Form(...),
+    signature: list[str] = Form(...),
+):
+    # Build XML
+    root = Element("form_submission")
+
+    static_data = SubElement(root, "static")
+    SubElement(static_data, "name").text = name
+    SubElement(static_data, "lastname").text = lastname
+    SubElement(static_data, "title").text = title
+    SubElement(static_data, "telno").text = telno
+    SubElement(static_data, "mail").text = mail
+    SubElement(static_data, "apparatsname").text = apparatsname
+    SubElement(static_data, "subject").text = subject
+    SubElement(static_data, "semester").text = f"{semester_type} {semester_year}"
+    # inside handle_form(), right after parameters are received, before building XML:
+    # Basic email validation (server-side)
+    if not EMAIL_REGEX.match(mail):
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Invalid email address format.",
+        )
+    books = SubElement(root, "books")
+    for i in range(len(authorname)):
+        book = SubElement(books, "book")
+        SubElement(book, "authorname").text = authorname[i]
+        SubElement(book, "year").text = year[i]
+        SubElement(book, "title").text = booktitle[i]
+        SubElement(book, "signature").text = signature[i]
+
+    xml_data = tostring(root, encoding="unicode")
+
+    # Send mail
+    msg = MIMEText(xml_data, "xml")
+    msg["Subject"] = "New Form Submission"
+    msg["From"] = MAIL_FROM
+    msg["To"] = MAIL_TO
+
+    with smtplib.SMTP(SMTP_HOST, SMTP_PORT) as server:
+        server.send_message(msg)
+
+    return RedirectResponse("/", status_code=303)