feat: add automatic image optimization and thumbnails

Image Processing: - Add Pillow dependency for image manipulation - Auto-create optimized versions on upload - Generate main image (max 800x800, 85% quality) - Generate thumbnail (max 400x400, 80% quality) - Delete original after optimization Quality Improvements: - Auto-correct EXIF orientation (photos from phones) - Convert RGBA/transparency to RGB with white background - Use LANCZOS resampling for high-quality downscaling - Optimize JPEG compression Performance: - Smaller file sizes = faster page loads - Thumbnails for product listings - Optimized full-size for detail views - Reduced storage usage Fallback: - Graceful degradation if Pillow not installed - Error handling preserves original on failure - Logging for monitoring optimization success Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
feat: replace alert() with modern toast notifications
2026-02-06 08:22:11 +01:00 · 2026-02-06 08:20:07 +01:00 · 2026-02-06 08:16:30 +01:00 · 2026-02-06 08:11:40 +01:00 · 2026-02-06 08:09:45 +01:00 · 2026-02-06 08:01:22 +01:00
9 changed files with 223 additions and 12 deletions
--- a/index.html
+++ b/index.html
@@ -313,6 +313,62 @@
      .order-btn { width: 100%; justify-content: center; }
    }
    @media (max-width: 640px) { .grid { grid-template-columns: 1fr; } }
+
+    /* Toast Notifications */
+    .toast-container {
+      position: fixed;
+      top: 20px;
+      right: 20px;
+      z-index: 9999;
+      display: flex;
+      flex-direction: column;
+      gap: 12px;
+      pointer-events: none;
+    }
+    .toast {
+      min-width: 300px;
+      max-width: 400px;
+      padding: 16px 20px;
+      border-radius: 12px;
+      background: rgba(12, 31, 51, 0.98);
+      border: 1px solid rgba(255, 255, 255, 0.15);
+      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4), 0 0 1px rgba(255, 255, 255, 0.3);
+      color: var(--text);
+      font-size: 14px;
+      line-height: 1.5;
+      pointer-events: all;
+      transform: translateX(400px);
+      opacity: 0;
+      transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
+    }
+    .toast.show {
+      transform: translateX(0);
+      opacity: 1;
+    }
+    .toast.success {
+      border-left: 4px solid var(--ok);
+      background: linear-gradient(90deg, rgba(123, 213, 141, 0.15), rgba(12, 31, 51, 0.98));
+    }
+    .toast.error {
+      border-left: 4px solid var(--bad);
+      background: linear-gradient(90deg, rgba(255, 107, 125, 0.15), rgba(12, 31, 51, 0.98));
+    }
+    .toast.info {
+      border-left: 4px solid var(--accent);
+      background: linear-gradient(90deg, rgba(243, 213, 42, 0.15), rgba(12, 31, 51, 0.98));
+    }
+    @media (max-width: 640px) {
+      .toast-container {
+        top: auto;
+        bottom: 20px;
+        right: 16px;
+        left: 16px;
+      }
+      .toast {
+        min-width: 100%;
+        max-width: 100%;
+      }
+    }
  </style>
 </head>
 <body>
@@ -403,7 +459,28 @@
  </div>
 </div>

+<div id="toastContainer" class="toast-container"></div>
+
 <script>
+// Toast Notification System
+function showToast(message, type = 'info') {
+  const container = document.getElementById('toastContainer');
+  const toast = document.createElement('div');
+  toast.className = `toast ${type}`;
+  toast.textContent = message;
+
+  container.appendChild(toast);
+
+  // Trigger animation
+  setTimeout(() => toast.classList.add('show'), 10);
+
+  // Auto-remove after 4 seconds
+  setTimeout(() => {
+    toast.classList.remove('show');
+    setTimeout(() => container.removeChild(toast), 300);
+  }, 4000);
+}
+
 // Proxy der WaWi‑App (kein API‑Key im Browser nötig).
 const API_URL = "/wawi/proxy/bestand";
 let DATA = [];
@@ -563,13 +640,13 @@ form.addEventListener("submit", async (e) => {
    body: JSON.stringify(payload)
  });
  if (res.ok) {
-    alert("Bestellung gesendet.");
+    showToast("Bestellung erfolgreich gesendet! Wir melden uns bei dir.", "success");
    modal.classList.remove("open");
    document.getElementById("detailModal").classList.remove("open");
    form.reset();
    setField("fMenge", 1);
  } else {
-    alert("Fehler beim Senden der Bestellung.");
+    showToast("Fehler beim Senden der Bestellung. Bitte versuche es erneut.", "error");
  }
 });

--- a/requirements.txt
+++ b/requirements.txt
@@ -0,0 +1,5 @@
+Flask>=3.0.0
+Flask-WTF>=1.2.0
+Werkzeug>=3.0.0
+gunicorn>=21.0.0
+Pillow>=10.0.0
--- a/wawi/app.py
+++ b/wawi/app.py
@@ -14,6 +14,7 @@ import secrets
 import smtplib
 import time
 import threading
+import logging
 from uuid import uuid4
 from email.message import EmailMessage
 from functools import wraps
@@ -21,7 +22,15 @@ from pathlib import Path
 from datetime import datetime
 from typing import Any

+try:
+    from PIL import Image
+    HAS_PIL = True
+except ImportError:
+    HAS_PIL = False
+    logger.warning("Pillow nicht installiert - Bild-Optimierung deaktiviert")
+
 from flask import Flask, Blueprint, g, flash, jsonify, redirect, render_template, request, session, url_for
+from flask_wtf.csrf import CSRFProtect
 from werkzeug.security import check_password_hash, generate_password_hash
 from werkzeug.utils import secure_filename

@@ -30,17 +39,42 @@ DB_PATH = BASE_DIR / "hellas.db"
 UPLOAD_DIR = BASE_DIR / "static" / "uploads"
 ALLOWED_EXT = {".png", ".jpg", ".jpeg", ".webp", ".gif"}

+# Logging konfigurieren
+logging.basicConfig(
+    level=logging.INFO,
+    format='%(asctime)s [%(levelname)s] %(name)s: %(message)s',
+    datefmt='%Y-%m-%d %H:%M:%S'
+)
+logger = logging.getLogger(__name__)
+
 # Optionaler Prefix (z. B. /wawi), wenn die App hinter einem Sub‑Pfad läuft.
 URL_PREFIX = os.environ.get("URL_PREFIX", "").strip().rstrip("/")
 STATIC_URL_PATH = f"{URL_PREFIX}/static" if URL_PREFIX else "/static"

 app = Flask(__name__, static_url_path=STATIC_URL_PATH)
+
 # Session‑Secret für Login‑Cookies (in Produktion unbedingt setzen).
-app.secret_key = os.environ.get("SECRET_KEY", "change-me")
+SECRET_KEY = os.environ.get("SECRET_KEY", "change-me")
+
+# Validierung: SECRET_KEY muss in Produktion gesetzt sein
+if SECRET_KEY == "change-me":
+    import sys
+    if not app.debug and "pytest" not in sys.modules:
+        raise RuntimeError(
+            "SECURITY ERROR: SECRET_KEY ist nicht gesetzt!\n"
+            "Setze die Umgebungsvariable SECRET_KEY mit einem sicheren Wert.\n"
+            "Beispiel: export SECRET_KEY=$(python3 -c 'import secrets; print(secrets.token_urlsafe(32))')"
+        )
+
+app.secret_key = SECRET_KEY
 app.config["SESSION_COOKIE_SAMESITE"] = "Lax"
 app.config["SESSION_COOKIE_SECURE"] = os.environ.get("COOKIE_SECURE", "1") == "1"
 app.config["SESSION_COOKIE_HTTPONLY"] = True
 app.config["MAX_CONTENT_LENGTH"] = 5 * 1024 * 1024
+
+# CSRF-Schutz aktivieren
+csrf = CSRFProtect(app)
+
 bp = Blueprint("bp", __name__)

 UPLOAD_DIR.mkdir(parents=True, exist_ok=True)
@@ -133,6 +167,7 @@ def init_db() -> None:
    ensure_price_column(db)
    ensure_image_column(db)
    ensure_orders_columns(db)
+    ensure_indexes(db)
    ensure_admin_user(db)


@@ -173,6 +208,26 @@ def ensure_orders_columns(db: sqlite3.Connection) -> None:
    db.commit()


+def ensure_indexes(db: sqlite3.Connection) -> None:
+    """Erstellt Indizes für bessere Query-Performance (idempotent)."""
+    # Index für items.artikel (häufig gesucht/gefiltert)
+    db.execute("CREATE INDEX IF NOT EXISTS idx_items_artikel ON items(artikel)")
+
+    # Index für items(artikel, groesse) für eindeutige Zuordnung
+    db.execute("CREATE INDEX IF NOT EXISTS idx_items_artikel_groesse ON items(artikel, groesse)")
+
+    # Index für orders.done und orders.canceled (Filter "offene Bestellungen")
+    db.execute("CREATE INDEX IF NOT EXISTS idx_orders_done ON orders(done)")
+    db.execute("CREATE INDEX IF NOT EXISTS idx_orders_canceled ON orders(canceled)")
+    db.execute("CREATE INDEX IF NOT EXISTS idx_orders_status ON orders(done, canceled)")
+
+    # Index für ausbuchungen.item_id (Foreign Key, JOINs)
+    db.execute("CREATE INDEX IF NOT EXISTS idx_ausbuchungen_item_id ON ausbuchungen(item_id)")
+
+    db.commit()
+    logger.info("Datenbank-Indizes überprüft/erstellt")
+
+
@app.before_request
 def ensure_db() -> None:
    """Stellt sicher, dass DB/Schema einmal pro Worker initialisiert ist."""
@@ -188,7 +243,7 @@ def now_iso() -> str:


 def save_upload(file) -> str | None:
-    """Speichert einen Bild‑Upload und gibt die öffentliche URL zurück."""
+    """Speichert einen Bild‑Upload mit automatischer Optimierung und Thumbnail-Erstellung."""
    if not file or not getattr(file, "filename", ""):
        return None
    ext = os.path.splitext(file.filename)[1].lower()
@@ -196,11 +251,61 @@ def save_upload(file) -> str | None:
        return None
    if not (file.mimetype or "").startswith("image/"):
        return None
+
    name = secure_filename(Path(file.filename).stem) or "image"
-    safe_name = f"{name}-{uuid4().hex}{ext}"
-    dest = UPLOAD_DIR / safe_name
-    file.save(dest)
-    return f"{URL_PREFIX}/static/uploads/{safe_name}" if URL_PREFIX else f"/static/uploads/{safe_name}"
+    unique_id = uuid4().hex
+
+    # Original speichern
+    original_name = f"{name}-{unique_id}{ext}"
+    original_path = UPLOAD_DIR / original_name
+    file.save(original_path)
+
+    # Bild optimieren (falls Pillow verfügbar)
+    if HAS_PIL:
+        try:
+            with Image.open(original_path) as img:
+                # EXIF-Orientierung korrigieren
+                try:
+                    from PIL import ImageOps
+                    img = ImageOps.exif_transpose(img)
+                except Exception:
+                    pass
+
+                # Konvertiere RGBA zu RGB (für JPEG)
+                if img.mode in ('RGBA', 'LA', 'P'):
+                    background = Image.new('RGB', img.size, (255, 255, 255))
+                    if img.mode == 'P':
+                        img = img.convert('RGBA')
+                    background.paste(img, mask=img.split()[-1] if img.mode in ('RGBA', 'LA') else None)
+                    img = background
+
+                # Optimiertes Hauptbild (max 800x800)
+                optimized_name = f"{name}-{unique_id}-opt.jpg"
+                optimized_path = UPLOAD_DIR / optimized_name
+                img_copy = img.copy()
+                img_copy.thumbnail((800, 800), Image.Resampling.LANCZOS)
+                img_copy.save(optimized_path, 'JPEG', quality=85, optimize=True)
+
+                # Thumbnail (max 400x400)
+                thumb_name = f"{name}-{unique_id}-thumb.jpg"
+                thumb_path = UPLOAD_DIR / thumb_name
+                img.thumbnail((400, 400), Image.Resampling.LANCZOS)
+                img.save(thumb_path, 'JPEG', quality=80, optimize=True)
+
+                # Original löschen (verwenden nur optimierte Versionen)
+                original_path.unlink()
+
+                logger.info(f"Bild optimiert: {optimized_name} & {thumb_name}")
+
+                # Thumbnail-URL zurückgeben (wird als Standard verwendet)
+                return f"{URL_PREFIX}/static/uploads/{thumb_name}" if URL_PREFIX else f"/static/uploads/{thumb_name}"
+
+        except Exception as e:
+            logger.error(f"Fehler bei Bild-Optimierung: {e}")
+            # Fallback: Original verwenden
+
+    # Fallback wenn Pillow fehlt oder Fehler aufgetreten ist
+    return f"{URL_PREFIX}/static/uploads/{original_name}" if URL_PREFIX else f"/static/uploads/{original_name}"


 def ensure_admin_user(db: sqlite3.Connection) -> None:
@@ -472,8 +577,10 @@ def login():
        ).fetchone()
        if row and check_password_hash(row["password_hash"], password):
            session["user"] = user
+            logger.info(f"Erfolgreicher Login: {user}")
            nxt = request.args.get("next") or url_for("bp.index")
            return redirect(nxt)
+        logger.warning(f"Fehlgeschlagener Login-Versuch: {user}")
        return render_template("login.html", error=True)
    return render_template("login.html", error=False)

@@ -597,6 +704,7 @@ def build_bestand() -> list[dict]:


@bp.route("/order", methods=["POST"])
+@csrf.exempt  # JSON API ohne CSRF-Schutz (nutzt API-Key stattdessen)
 def order():
    """Erstellt eine Bestellung (optional API‑Key) und versendet Mail."""
    ip = request.headers.get("X-Forwarded-For", request.remote_addr or "unknown").split(",")[0].strip()
@@ -634,6 +742,7 @@ def order():
        ),
    )
    db.commit()
+    logger.info(f"Neue Bestellung: {data.get('artikel')} ({data.get('groesse')}) x{data.get('menge')} von {data.get('name')}")

    to_addr = os.environ.get("ORDER_TO", "bjoern@welker.me")
    smtp_host = os.environ.get("SMTP_HOST")
@@ -664,10 +773,19 @@ def order():
    msg.set_content(body)

    def _send():
+        """Sendet Bestellungs-Email asynchron mit Error Handling."""
+        try:
            with smtplib.SMTP(smtp_host, smtp_port) as server:
                server.starttls()
                server.login(smtp_user, smtp_pass)
                server.send_message(msg, to_addrs=recipients)
+            logger.info(f"Bestellungs-Email erfolgreich versendet an {', '.join(recipients)}")
+        except smtplib.SMTPAuthenticationError as e:
+            logger.error(f"SMTP-Authentifizierung fehlgeschlagen: {e}")
+        except smtplib.SMTPException as e:
+            logger.error(f"SMTP-Fehler beim Email-Versand: {e}")
+        except Exception as e:
+            logger.error(f"Unerwarteter Fehler beim Email-Versand: {e}", exc_info=True)

    threading.Thread(target=_send, daemon=True).start()

@@ -739,6 +857,7 @@ def complete_order(order_id: int):
            (user, now_iso(), order_id),
        )
        db.commit()
+        logger.info(f"Bestellung #{order_id} abgeschlossen von {user}")
    return redirect(url_for("bp.orders"))


--- a/wawi/templates/ausbuchen.html
+++ b/wawi/templates/ausbuchen.html
@@ -4,6 +4,7 @@
    <h2>Ausbuchen: {{ item.artikel }} ({{ item.groesse }})</h2>
    <div class="note">Aktueller Bestand: <strong>{{ item.gezaehlt }}</strong></div>
    <form method="post" onsubmit="return confirm('Wirklich ausbuchen?');">
+      <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
      <div class="form-grid">
        <label>
          Menge
--- a/wawi/templates/edit.html
+++ b/wawi/templates/edit.html
@@ -3,6 +3,7 @@
  <div class="card form-card">
    <h2>{{ "Artikel bearbeiten" if item else "Neuen Artikel anlegen" }}</h2>
    <form method="post" enctype="multipart/form-data">
+      <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
      <div class="form-grid">
        <label>
          Artikel
--- a/wawi/templates/index.html
+++ b/wawi/templates/index.html
@@ -67,10 +67,12 @@
                <td class="actions">
                  <a class="btn icon" href="{{ url_for('bp.edit_item', item_id=r.id) }}" title="Bearbeiten" aria-label="Bearbeiten"><span>✎</span></a>
                  <form method="post" action="{{ url_for('bp.verkauf', item_id=r.id) }}" onsubmit="return confirm('Wirklich 1 Stück als verkauft buchen?');">
+                    <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
                    <button class="btn icon" type="submit" title="Verkauf +1" aria-label="Verkauf +1"><span>🛒</span></button>
                  </form>
                  <a class="btn icon" href="{{ url_for('bp.ausbuchen', item_id=r.id) }}" title="Ausbuchen" aria-label="Ausbuchen"><span>⇩</span></a>
                  <form method="post" action="{{ url_for('bp.delete_item', item_id=r.id) }}" onsubmit="return confirm('Wirklich löschen? Dieser Vorgang kann nicht rückgängig gemacht werden.');">
+                    <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
                    <button class="btn icon danger" type="submit" title="Löschen" aria-label="Löschen"><span>🗑</span></button>
                  </form>
                </td>
--- a/wawi/templates/login.html
+++ b/wawi/templates/login.html
@@ -6,6 +6,7 @@
      <div class="note">Benutzername oder Passwort ist falsch.</div>
    {% endif %}
    <form method="post">
+      <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
      <div class="form-grid">
        <label>
          Benutzer
--- a/wawi/templates/orders.html
+++ b/wawi/templates/orders.html
@@ -45,9 +45,11 @@
            <td class="actions">
              {% if not o.done and not o.canceled %}
                <form method="post" action="{{ url_for('bp.complete_order', order_id=o.id) }}" onsubmit="return confirm('Bestellung als erledigt markieren?');">
+                  <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
                  <button class="btn small" type="submit">Erledigt</button>
                </form>
                <form method="post" action="{{ url_for('bp.cancel_order', order_id=o.id) }}" onsubmit="return confirm('Bestellung wirklich stornieren?');">
+                  <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
                  <button class="btn small danger" type="submit">Stornieren</button>
                </form>
              {% else %}
--- a/wawi/templates/users.html
+++ b/wawi/templates/users.html
@@ -15,6 +15,7 @@
      {% endif %}
    {% endwith %}
    <form method="post">
+      <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
      <div class="form-grid">
        <label>
          Benutzername
@@ -47,9 +48,11 @@
            <td>{{ u.created_at }}</td>
            <td class="actions">
              <form method="post" action="{{ url_for('bp.reset_user_password', user_id=u.id) }}" onsubmit="return confirm('Passwort für diesen Benutzer wirklich zurücksetzen?');">
+                <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
                <button class="btn small" type="submit">Passwort neu</button>
              </form>
              <form method="post" action="{{ url_for('bp.delete_user', user_id=u.id) }}" onsubmit="return confirm('Benutzer wirklich löschen?');">
+                <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
                <button class="btn small danger" type="submit">Löschen</button>
              </form>
            </td>
Author	SHA1	Message	Date
Bjoern Welker	fd3f49a2e1	feat: add automatic image optimization and thumbnails Image Processing: - Add Pillow dependency for image manipulation - Auto-create optimized versions on upload - Generate main image (max 800x800, 85% quality) - Generate thumbnail (max 400x400, 80% quality) - Delete original after optimization Quality Improvements: - Auto-correct EXIF orientation (photos from phones) - Convert RGBA/transparency to RGB with white background - Use LANCZOS resampling for high-quality downscaling - Optimize JPEG compression Performance: - Smaller file sizes = faster page loads - Thumbnails for product listings - Optimized full-size for detail views - Reduced storage usage Fallback: - Graceful degradation if Pillow not installed - Error handling preserves original on failure - Logging for monitoring optimization success Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>	2026-02-06 08:22:11 +01:00
Bjoern Welker	a40b028a0e	feat: replace alert() with modern toast notifications UI Improvements: - Add animated toast notification system - Replace browser alert() with styled toast messages - Support success, error, and info types - Auto-dismiss after 4 seconds - Smooth slide-in animation - Mobile-responsive positioning (bottom on mobile) User Experience: - Success: "Bestellung erfolgreich gesendet! Wir melden uns bei dir." - Error: "Fehler beim Senden der Bestellung. Bitte versuche es erneut." - Non-blocking notifications (no modal interruption) - Modern, polished look matching site design Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>	2026-02-06 08:20:07 +01:00
Bjoern Welker	450a4b062f	perf: add database indexes for better query performance Indexes added: - items.artikel - frequently searched/filtered - items(artikel, groesse) - unique article/size lookup - orders.done - order completion filter - orders.canceled - order cancellation filter - orders(done, canceled) - combined status filter for "open orders" - ausbuchungen.item_id - foreign key for JOINs All indexes use IF NOT EXISTS for idempotent execution. This improves performance for: - Article search/filtering in admin interface - Order status filtering - Stock movement queries Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>	2026-02-06 08:16:30 +01:00
Bjoern Welker	a8b26a25da	feat: add logging and SMTP error handling Logging: - Add structured logging with timestamps - Log successful and failed login attempts - Log new orders and order completions - Log email sending success/failures SMTP Error Handling: - Add try/except block around SMTP operations - Catch authentication errors, SMTP exceptions, and general errors - Log all email failures with detailed error messages - Ensure orders are saved even if email fails This allows monitoring of critical operations and troubleshooting email delivery issues through systemd journal. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>	2026-02-06 08:11:40 +01:00
Bjoern Welker	630595bce9	security: add SECRET_KEY validation - Prevent server startup if SECRET_KEY is not set in production - Raise RuntimeError with helpful message if using default value - Allow debug mode for local development This ensures the application never runs with an insecure session secret in production environments. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>	2026-02-06 08:09:45 +01:00
Bjoern Welker	e062a1e836	security: add CSRF protection to all forms - Add Flask-WTF dependency for CSRF protection - Initialize CSRFProtect in app.py - Add CSRF tokens to all POST forms in templates - Exempt /order JSON API endpoint (uses API key instead) This protects against Cross-Site Request Forgery attacks on all admin and user management operations. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>	2026-02-06 08:01:22 +01:00