U17: Flask-App mit /, /frage, /pinnwand (YouTube-Kommentar-Style), Port 9002

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David Kertzscher 2026-06-17 13:27:58 +00:00
parent 85bf7ce69f
commit e1b26df409
2 changed files with 343 additions and 0 deletions

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.gitignore vendored
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*.swp
*~
.DS_Store
venv/
__pycache__/
*.pyc

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app.py Normal file
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from flask import Flask, request, redirect
from datetime import datetime
app = Flask(__name__)
# Kommentare im Arbeitsspeicher (gehen beim Neustart verloren -> kommt Datenbank)
eintraege = []
# ─────────────────────────────────────────────────────────────────────────────
# Hilfsfunktion: gemeinsames HTML-Gerüst
# ─────────────────────────────────────────────────────────────────────────────
def seite(inhalt):
return """<!DOCTYPE html>
<html lang="de">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Flask-App David & Karo</title>
<style>
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
font-family: Arial, sans-serif;
background: #f9f9f9;
color: #333;
min-height: 100vh;
}
.topbar {
background: #fff;
border-bottom: 1px solid #e0e0e0;
padding: 0 20px;
height: 56px;
display: flex;
align-items: center;
gap: 16px;
position: sticky;
top: 0;
z-index: 100;
}
.topbar-logo {
font-size: 20px;
font-weight: bold;
color: #cc181e;
letter-spacing: -1px;
text-decoration: none;
}
.topbar nav { display: flex; gap: 12px; margin-left: 16px; }
.topbar nav a {
font-size: 13px;
color: #555;
text-decoration: none;
padding: 4px 10px;
border-radius: 2px;
border: 1px solid transparent;
transition: border-color 0.15s;
}
.topbar nav a:hover { border-color: #ccc; background: #f5f5f5; }
.topbar nav a.aktiv { color: #cc181e; border-color: #cc181e; }
.container {
max-width: 900px;
margin: 30px auto;
padding: 0 20px;
}
</style>
</head>
<body>
<div class="topbar">
<a href="/app/" class="topbar-logo">&#9654; Flask-App</a>
<nav>
<a href="/app/">Start</a>
<a href="/app/frage">Frage</a>
<a href="/app/pinnwand">Pinnwand</a>
</nav>
</div>
<div class="container">""" + inhalt + """
</div>
</body>
</html>"""
# ─────────────────────────────────────────────────────────────────────────────
# Route 1: Startseite
# ─────────────────────────────────────────────────────────────────────────────
@app.route("/")
def hello():
return seite("""
<h1 style="font-size:24px; margin-bottom:12px;">Willkommen in unserer Flask-App!</h1>
<p style="color:#555; line-height:1.6;">
Diese App läuft mit <strong>Python &amp; Flask</strong> direkt auf dem Server.<br>
Probier die <a href="/app/frage" style="color:#1155cc;">Frage</a> oder die
<a href="/app/pinnwand" style="color:#1155cc;">Pinnwand</a> aus.
</p>
""")
# ─────────────────────────────────────────────────────────────────────────────
# Route 2: Frage-Formular (GET + POST)
# ─────────────────────────────────────────────────────────────────────────────
@app.route("/frage", methods=["GET", "POST"])
def frage():
feedback = ""
if request.method == "POST":
antwort = request.form.get("antwort", "").strip()
if antwort == "8":
feedback = '<p style="color:#2e7d32; font-weight:bold; margin-top:12px;">✔ Richtig!</p>'
else:
feedback = '<p style="color:#c62828; font-weight:bold; margin-top:12px;">✘ Leider falsch. Versuch es nochmal!</p>'
return seite("""
<h1 style="font-size:22px; margin-bottom:16px;">Rechenrätsel</h1>
<form method="post" style="background:#fff; border:1px solid #ddd; border-radius:4px;
padding:20px; max-width:360px;">
<label style="font-size:15px; font-weight:bold;">Was ist 3 + 5?</label><br>
<input name="antwort" type="text" autofocus
style="margin-top:10px; padding:7px 10px; border:1px solid #aaa;
border-radius:2px; font-size:14px; width:120px;">
<button type="submit"
style="margin-left:8px; padding:7px 16px; background:#1155cc; color:#fff;
border:none; border-radius:2px; font-size:14px; cursor:pointer;">
OK
</button>
</form>
""" + feedback)
# ─────────────────────────────────────────────────────────────────────────────
# Route 3: Pinnwand YouTube-Kommentar-Style (ca. 2013)
# ─────────────────────────────────────────────────────────────────────────────
PINNWAND_CSS = """
<style>
/* Pinnwand-spezifisch */
.pw-header {
font-size: 14px;
color: #333;
margin-bottom: 20px;
border-bottom: 1px solid #e0e0e0;
padding-bottom: 12px;
}
.pw-header strong { font-size: 16px; }
/* Eingabe-Bereich */
.pw-input-row {
display: flex;
gap: 12px;
align-items: flex-start;
margin-bottom: 24px;
}
.pw-avatar {
width: 40px;
height: 40px;
border-radius: 50%;
background: #888;
color: #fff;
display: flex;
align-items: center;
justify-content: center;
font-size: 18px;
font-weight: bold;
flex-shrink: 0;
font-family: Arial, sans-serif;
}
.pw-input-wrap { flex: 1; }
.pw-input-wrap input[type=text] {
width: 100%;
border: none;
border-bottom: 1px solid #bbb;
background: transparent;
padding: 6px 2px;
font-size: 14px;
color: #333;
outline: none;
transition: border-color 0.2s;
}
.pw-input-wrap input[type=text]:focus {
border-bottom-color: #1155cc;
}
.pw-input-wrap input[type=text]::placeholder { color: #aaa; }
.pw-btn-row {
display: flex;
justify-content: flex-end;
gap: 8px;
margin-top: 8px;
}
.pw-btn {
padding: 6px 14px;
border: none;
border-radius: 2px;
font-size: 13px;
cursor: pointer;
font-weight: bold;
}
.pw-btn-submit {
background: #167ac6;
color: #fff;
}
.pw-btn-submit:hover { background: #1266a8; }
/* Kommentar-Liste */
.pw-count {
font-size: 14px;
color: #555;
margin-bottom: 14px;
}
.pw-comment {
display: flex;
gap: 12px;
padding: 12px 0;
border-bottom: 1px solid #f0f0f0;
}
.pw-comment:last-child { border-bottom: none; }
.pw-comment-body { flex: 1; }
.pw-comment-meta {
display: flex;
align-items: baseline;
gap: 8px;
margin-bottom: 4px;
}
.pw-username {
font-size: 13px;
font-weight: bold;
color: #167ac6;
}
.pw-time {
font-size: 12px;
color: #999;
}
.pw-text {
font-size: 14px;
color: #333;
line-height: 1.5;
word-break: break-word;
}
.pw-actions {
display: flex;
gap: 10px;
margin-top: 6px;
}
.pw-action-btn {
font-size: 12px;
color: #888;
background: none;
border: none;
cursor: pointer;
padding: 0;
}
.pw-action-btn:hover { color: #333; }
.pw-thumb { font-size: 13px; }
.pw-leer {
color: #aaa;
font-size: 14px;
text-align: center;
padding: 30px 0;
}
</style>
"""
def avatar_farbe(name):
farben = ["#e53935","#8e24aa","#1e88e5","#00897b",
"#43a047","#fb8c00","#6d4c41","#546e7a"]
idx = sum(ord(c) for c in name) % len(farben)
return farben[idx]
@app.route("/pinnwand", methods=["GET", "POST"])
def pinnwand():
if request.method == "POST":
name = request.form.get("name", "").strip() or "Anonym"
nachricht = request.form.get("nachricht", "").strip()
if nachricht:
eintraege.append({
"name": name,
"text": nachricht,
"zeit": datetime.now().strftime("%d.%m.%Y, %H:%M Uhr")
})
return redirect("/app/pinnwand")
# Kommentare bauen (neueste zuerst)
kommentare_html = ""
for e in reversed(eintraege):
initial = e["name"][0].upper()
farbe = avatar_farbe(e["name"])
# Einfaches HTML-Escaping
name_esc = e["name"].replace("&","&amp;").replace("<","&lt;").replace(">","&gt;")
text_esc = e["text"].replace("&","&amp;").replace("<","&lt;").replace(">","&gt;")
kommentare_html += f"""
<div class="pw-comment">
<div class="pw-avatar" style="background:{farbe}">{initial}</div>
<div class="pw-comment-body">
<div class="pw-comment-meta">
<span class="pw-username">{name_esc}</span>
<span class="pw-time">vor gerade &nbsp;·&nbsp; {e['zeit']}</span>
</div>
<div class="pw-text">{text_esc}</div>
<div class="pw-actions">
<button class="pw-action-btn pw-thumb">&#128077;</button>
<button class="pw-action-btn pw-thumb">&#128078;</button>
<button class="pw-action-btn">Antworten</button>
</div>
</div>
</div>"""
if not eintraege:
kommentare_html = '<p class="pw-leer">Noch keine Kommentare. Sei der Erste! 💬</p>'
anzahl = len(eintraege)
anzahl_text = f"{anzahl} Kommentar{'e' if anzahl != 1 else ''}"
return seite(PINNWAND_CSS + f"""
<div class="pw-header">
<strong>Kommentare</strong>
</div>
<!-- Eingabe-Formular -->
<form method="post">
<div class="pw-input-row">
<div class="pw-avatar" style="background:#888">&#128100;</div>
<div class="pw-input-wrap">
<input type="text" name="name" placeholder="Dein Name (optional)"
style="margin-bottom:10px;">
<input type="text" name="nachricht" placeholder="Öffentlichen Kommentar hinzufügen ..." autofocus>
<div class="pw-btn-row">
<button type="submit" class="pw-btn pw-btn-submit">Kommentieren</button>
</div>
</div>
</div>
</form>
<!-- Anzahl -->
<p class="pw-count">{anzahl_text}</p>
<!-- Kommentar-Liste -->
<div id="kommentare">
{kommentare_html}
</div>
""")
# ─────────────────────────────────────────────────────────────────────────────
if __name__ == "__main__":
app.run(host="0.0.0.0", port=9002) # isa2 → Port 9002