implementation of the user .csv importing

Web/app.py

@@ -27,6 +27,10 @@ import os
 import sys
 from bs4 import BeautifulSoup
 from gridfs import GridFS
+import string
+from reportlab.lib.pagesizes import A4
+from reportlab.pdfgen import canvas
+from reportlab.lib import colors
 
 # Ensure imports work regardless of whether gunicorn starts in /app or /app/Web.
 _CURRENT_DIR = os.path.dirname(os.path.abspath(__file__))
@@ -7861,6 +7865,202 @@ def register():
         permission_page_options=PERMISSION_PAGE_OPTIONS
     )
 
+def generate_compliant_password(length=16):
+    lowers = string.ascii_lowercase
+    uppers = string.ascii_uppercase
+    digits = string.digits
+    symbols = "!@#$%^&*()_+~|}{[]:;?><,.-="
+
+    # Ensure at least one character from each required category
+    pwd = [
+        secrets.choice(lowers),
+        secrets.choice(uppers),
+        secrets.choice(digits),
+        secrets.choice(symbols)
+    ]
+    all_chars = lowers + uppers + digits + symbols
+    pwd += [secrets.choice(all_chars) for _ in range(length - 4)]
+
+    # Shuffle so guaranteed types aren't always at the start
+    secrets.SystemRandom().shuffle(pwd)
+    return "".join(pwd)
+
+def generate_credentials_pdf(created_users):
+    """
+    Creates a PDF in memory with 2 user credential cards per A4 page.
+    created_users: list of dicts [{'name': ..., 'last_name': ..., 'username': ..., 'password': ...}]
+    """
+    buffer = io.BytesIO()
+    pdf = canvas.Canvas(buffer, pagesize=A4)
+    width, height = A4  # 595.27 x 841.89 points
+    card_height = height / 2.0  # Split page into 2 equal halves
+
+    for i, user in enumerate(created_users):
+        page_slot = i % 2  # 0 = Top half, 1 = Bottom half
+
+        # If starting a new page (except for the very first item)
+        if i > 0 and page_slot == 0:
+            pdf.showPage()
+
+        # Calculate Y offset for card position
+        y_offset = height - (page_slot + 1) * card_height
+
+        # Card Container Box
+        margin = 35
+        box_x = margin
+        box_y = y_offset + margin
+        box_w = width - (2 * margin)
+        box_h = card_height - (2 * margin)
+
+        # Outer Border
+        pdf.setStrokeColor(colors.HexColor('#CBD5E1'))
+        pdf.setLineWidth(1)
+        pdf.rect(box_x, box_y, box_w, box_h, fill=0)
+
+        # Header Banner inside Card
+        pdf.setFillColor(colors.HexColor('#1E293B'))
+        pdf.rect(box_x, box_y + box_h - 45, box_w, 45, fill=1, stroke=0)
+
+        # Header Title Text
+        pdf.setFillColor(colors.white)
+        pdf.setFont("Helvetica-Bold", 14)
+        pdf.drawString(box_x + 20, box_y + box_h - 28, "Zugangsdaten / Account Credentials")
+
+        # User Info Details
+        content_y = box_y + box_h - 80
+
+        # Name
+        pdf.setFillColor(colors.HexColor('#0F172A'))
+        pdf.setFont("Helvetica-Bold", 12)
+        pdf.drawString(box_x + 25, content_y, f"Name: {user['name']} {user['last_name']}")
+
+        # Username
+        content_y -= 35
+        pdf.setFont("Helvetica", 11)
+        pdf.setFillColor(colors.HexColor('#475569'))
+        pdf.drawString(box_x + 25, content_y, "Benutzername:")
+        pdf.setFont("Helvetica-Bold", 13)
+        pdf.setFillColor(colors.HexColor('#0F172A'))
+        pdf.drawString(box_x + 160, content_y, user['username'])
+
+        # Password
+        content_y -= 30
+        pdf.setFont("Helvetica", 11)
+        pdf.setFillColor(colors.HexColor('#475569'))
+        pdf.drawString(box_x + 25, content_y, "Passwort:")
+        pdf.setFont("Courier-Bold", 13)
+        pdf.setFillColor(colors.HexColor('#0F172A'))
+        pdf.drawString(box_x + 160, content_y, user['password'])
+
+        # Security Footer Note
+        content_y -= 45
+        pdf.setFont("Helvetica-Oblique", 9)
+        pdf.setFillColor(colors.HexColor('#64748B'))
+        pdf.drawString(box_x + 25, content_y, "Hinweis: Bitte ändern Sie Ihr Passwort nach der ersten Anmeldung.")
+
+        # Dashed Cut Line between top and bottom cards
+        if page_slot == 0 and i < len(created_users) - 1:
+            pdf.setDash(4, 4)
+            pdf.setStrokeColor(colors.HexColor('#94A3B8'))
+            pdf.line(0, card_height, width, card_height)
+            pdf.setDash()  # Reset dash
+
+    pdf.save()
+    buffer.seek(0)
+    return buffer
+
+
+@app.route('/register/csv', methods=['POST'])
+def register_csv():
+    if 'username' not in session:
+        flash('Ihnen ist es nicht gestattet, diese Aktion auszuführen.', 'error')
+        return redirect(url_for('login'))
+
+    file = request.files.get('csv_file')
+    if not file or not file.filename.endswith('.csv'):
+        flash('Bitte laden Sie eine gültige CSV-Datei hoch.', 'error')
+        return redirect(url_for('register'))
+
+    permission_preset = (request.form.get('permission_preset') or 'standard_user').strip()
+
+    created_users = []
+
+    try:
+        # Read file stream handling UTF-8 and BOM (Excel exports)
+        file_stream = io.StringIO(file.stream.read().decode("utf-8-sig"), newline=None)
+
+        # Sniff delimiter (comma or semicolon)
+        sample = file_stream.read(2048)
+        file_stream.seek(0)
+        delimiter = ';' if ';' in sample else ','
+
+        reader = csv.reader(file_stream, delimiter=delimiter)
+
+        for row_num, row in enumerate(reader, start=1):
+            if not row or all(field.strip() == '' for field in row):
+                continue  # Skip empty rows
+
+            # Clean entries
+            row = [field.strip() for field in row]
+
+            # Header row detection (Skip row if it looks like "Name, Nachname")
+            if row_num == 1 and ('name' in row[0].lower() or 'vorname' in row[0].lower()):
+                continue
+
+            if len(row) < 2:
+                continue
+
+            name = row[0]
+            last_name = row[1]
+
+            if not name or not last_name:
+                continue
+
+            # 1. Generate Username via backend logic
+            username = us.build_unique_username_from_name(name, last_name)
+
+            # 2. Generate Random Secure Password
+            password = generate_compliant_password(16)
+
+            # 3. Add User to DB
+            success = us.add_user(
+                username=username,
+                password=password,
+                name=name,
+                last_name=last_name,
+                is_student=False,
+                student_card_id=None,
+                max_borrow_days=None,
+                permission_preset=permission_preset,
+            )
+
+            if success:
+                created_users.append({
+                    'name': name,
+                    'last_name': last_name,
+                    'username': username,
+                    'password': password
+                })
+
+    except Exception as e:
+        flash(f'Fehler beim Verarbeiten der CSV-Datei: {str(e)}', 'error')
+        return redirect(url_for('register'))
+
+    if not created_users:
+        flash('Keine gültigen Benutzer in der CSV-Datei gefunden.', 'error')
+        return redirect(url_for('register'))
+
+    # Generate PDF
+    pdf_buffer = generate_credentials_pdf(created_users)
+
+    # Return downloadable PDF file
+    return send_file(
+        pdf_buffer,
+        as_attachment=True,
+        download_name='benutzer_zugangsdaten.pdf',
+        mimetype='application/pdf'
+    )
+
 @app.route('/user_del', methods=['GET'])
 def user_del():
     """

Web/templates/register.html

@@ -6,7 +6,7 @@
 <div class="container">
     <div class="header-section">
         <h1>Neuen Benutzer registrieren</h1>
-        <p class="subtitle">Erstellen Sie ein neues Benutzerkonto und legen Sie Zugriffsrechte fest</p>
+        <p class="subtitle">Erstellen Sie ein neues Benutzerkonto oder importieren Sie mehrere Benutzer per CSV</p>
     </div>
 
     <div class="flash-container">
@@ -23,7 +23,43 @@
     </div>
 
     <div class="content">
+        <!-- 1. CSV BULK IMPORT CARD -->
+        <div class="form-card" style="margin-bottom: 2rem; border-top: 4px solid #059669;">
+            <div class="card-header" style="margin-bottom: 1rem;">
+                <h2>Massenregistrierung via CSV</h2>
+                <p class="subtitle" style="color: #4b5563;">
+                    Laden Sie eine CSV-Datei hoch (Format: <code>Vorname, Nachname</code>).
+                    Benutzernamen und sichere Passwörter werden serverseitig generiert. Nach dem Upload erhalten Sie direkt ein PDF mit Zugangsdaten (2 pro Seite zum Ausschneiden).
+                </p>
+            </div>
+
+            <form method="POST" action="{{ url_for('register_csv') }}" enctype="multipart/form-data">
+                <div class="form-group">
+                    <label for="permission-preset-csv">Berechtigungs-Preset für alle CSV-Benutzer</label>
+                    <select id="permission-preset-csv" name="permission_preset" class="form-select" style="margin-bottom: 1rem;">
+                        {% for preset_key, preset in permission_presets.items() %}
+                        <option value="{{ preset_key }}">{{ preset.label }}</option>
+                        {% endfor %}
+                    </select>
+
+                    <label for="csv_file">CSV-Datei auswählen</label>
+                    <div class="input-container">
+                        <span class="input-icon">📄</span>
+                        <input type="file" id="csv_file" name="csv_file" accept=".csv" required style="padding: 10px;">
+                    </div>
+                </div>
+
+                <div class="form-group form-actions" style="margin-top: 1.5rem;">
+                    <button type="submit" class="action-button" style="background-color: #059669; color: white;">
+                        📥 CSV Importieren & Zugangsdaten-PDF Herunterladen
+                    </button>
+                </div>
+            </form>
+        </div>
+
+        <!-- 2. SINGLE USER REGISTRATION CARD -->
         <div class="form-card">
+            <h2>Einzelnen Benutzer registrieren</h2>
             <form method="POST" action="{{ url_for('register') }}">
 
                 <div class="form-group">
@@ -32,11 +68,13 @@
                         <span class="input-icon">👤</span>
                         <input type="text" id="name" name="name" placeholder="Geben Sie den Vornamen ein" required onchange="generateUsername()" oninput="generateUsername()">
                     </div>
+
                     <label for="last-name">Nachname</label>
                     <div class="input-container">
                         <span class="input-icon">👤</span>
                         <input type="text" id="last-name" name="last-name" placeholder="Geben Sie den Nachnamen ein" required onchange="generateUsername()" oninput="generateUsername()">
                     </div>
+
                     <label for="username">Benutzername <span style="color: #9ca3af;">(Vorschau - wird serverseitig finalisiert)</span></label>
                     <div class="input-container">
                         <span class="input-icon">👤</span>
@@ -61,16 +99,17 @@
                     <div class="input-wrapper">
                         <div class="input-container">
                             <span class="input-icon">🔒</span>
-                            <!-- HTML5 Pattern blockiert unsichere Passwörter vor dem Absenden -->
                             <input
+                                   type="password"
                                    id="password"
                                    name="password"
                                    placeholder="Geben Sie ein sicheres Passwort ein"
                                    required
                                    pattern="(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[^a-zA-Z0-9]).{12,}">
+                            <button type="button" id="toggle-pw-btn" class="toggle-pw-btn" onclick="togglePasswordVisibility()" style="background:none; border:none; cursor:pointer; padding-right:10px;">👁️</button>
                         </div>
                     </div>
-                    <div class="pw-actions">
+                    <div class="pw-actions" style="margin-top: 8px;">
                         <button type="button" class="btn-secondary" onclick="generateSecurePassword()">Passwort generieren</button>
                     </div>
                 </div>
@@ -120,6 +159,163 @@
     </div>
 </div>
 
+<script>
+// Hilfsfunktion: Umlaute auflösen und Sonderzeichen entfernen
+function cleanNameForUsername(text) {
+    if (!text) return '';
+    let cleaned = text.trim().toLowerCase()
+        .replace(/ä/g, 'ae')
+        .replace(/ö/g, 'oe')
+        .replace(/ü/g, 'ue')
+        .replace(/ß/g, 'ss')
+        .replace(/[^a-z]/g, '');
+    return cleaned;
+}
+
+// Hilfsfunktion: Erster Buchstabe groß
+function formatPart(str, len) {
+    if (!str) return '';
+    const part = str.slice(0, len);
+    return part.charAt(0).toUpperCase() + part.slice(1);
+}
+
+// Generiert die Vorschau des Benutzernamens (z.B. SimFri)
+function generateUsername() {
+    const firstName = cleanNameForUsername(document.getElementById('name').value);
+    const lastName = cleanNameForUsername(document.getElementById('last-name').value);
+    let username = '';
+
+    if (firstName && lastName) {
+        username = formatPart(firstName, 3) + formatPart(lastName, 3);
+    } else if (firstName) {
+        username = formatPart(firstName, 6);
+    } else if (lastName) {
+        username = formatPart(lastName, 6);
+    }
+
+    const usernameField = document.getElementById('username');
+    if (usernameField) {
+        usernameField.value = username || '';
+    }
+}
+
+// PASSWORT GENERATOR
+function generateSecurePassword() {
+    const length = 16;
+    const charsetLower = "abcdefghijklmnopqrstuvwxyz";
+    const charsetUpper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+    const charsetNum = "0123456789";
+    const charsetSym = "!@#$%^&*()_+~|}{[]:;?><,.-=";
+
+    let password = "";
+    // Garantiert mindestens 1 Zeichen aus jeder Kategorie
+    password += charsetLower[Math.floor(Math.random() * charsetLower.length)];
+    password += charsetUpper[Math.floor(Math.random() * charsetUpper.length)];
+    password += charsetNum[Math.floor(Math.random() * charsetNum.length)];
+    password += charsetSym[Math.floor(Math.random() * charsetSym.length)];
+
+    const allChars = charsetLower + charsetUpper + charsetNum + charsetSym;
+    // Restliche Zeichen auffüllen
+    for (let i = 4; i < length; i++) {
+        password += allChars[Math.floor(Math.random() * allChars.length)];
+    }
+
+    // Passwort durchmischen
+    password = password.split('').sort(() => 0.5 - Math.random()).join('');
+
+    const pwField = document.getElementById('password');
+    pwField.value = password;
+
+    // Automatisch sichtbar machen
+    pwField.type = 'text';
+    const toggleBtn = document.getElementById('toggle-pw-btn');
+    if (toggleBtn) toggleBtn.textContent = '🙈';
+
+    updatePasswordRules();
+}
+
+// PASSWORT SICHTBARKEIT UMSCHALTEN
+function togglePasswordVisibility() {
+    const pwField = document.getElementById('password');
+    const toggleBtn = document.getElementById('toggle-pw-btn');
+    if (pwField.type === "password") {
+        pwField.type = "text";
+        if (toggleBtn) toggleBtn.textContent = '🙈';
+    } else {
+        pwField.type = "password";
+        if (toggleBtn) toggleBtn.textContent = '👁️';
+    }
+}
+
+// Globale Funktion für Passwort-Update
+function updatePasswordRules() {
+    const passwordInput = document.getElementById('password');
+    if (!passwordInput) return;
+
+    const value = String(passwordInput.value || '');
+
+    const setRuleState = (id, ok) => {
+        const node = document.getElementById(id);
+        if (node) node.classList.toggle('ok', !!ok);
+    };
+
+    setRuleState('pw-rule-length', value.length >= 12);
+    setRuleState('pw-rule-lower', /[a-z]/.test(value));
+    setRuleState('pw-rule-upper', /[A-Z]/.test(value));
+    setRuleState('pw-rule-digit', /[0-9]/.test(value));
+    setRuleState('pw-rule-symbol', /[^A-Za-z0-9]/.test(value));
+}
+
+document.addEventListener('DOMContentLoaded', function () {
+    const permissionPresets = {{ permission_presets | tojson }};
+    const presetSelect = document.getElementById('permission-preset');
+    const useCustomPermissions = document.getElementById('use-custom-permissions');
+    const customPermissions = document.getElementById('custom-permissions');
+
+    function applyPresetToPermissionForm(presetKey) {
+        const preset = permissionPresets[presetKey] || {};
+        const actionDefaults = preset.actions || {};
+        const pageDefaults = preset.pages || {};
+
+        document.querySelectorAll('.permission-action-checkbox').forEach(function (checkbox) {
+            const key = checkbox.name.replace('action_', '');
+            checkbox.checked = !!actionDefaults[key];
+        });
+
+        document.querySelectorAll('.permission-page-checkbox').forEach(function (checkbox) {
+            const key = checkbox.name.replace('page_', '');
+            checkbox.checked = !!pageDefaults[key];
+        });
+    }
+
+    function toggleCustomPermissions() {
+        if (!useCustomPermissions || !customPermissions) {
+            return;
+        }
+        customPermissions.style.display = useCustomPermissions.checked ? 'block' : 'none';
+    }
+
+    if (presetSelect) {
+        presetSelect.addEventListener('change', function () {
+            applyPresetToPermissionForm(this.value);
+        });
+        applyPresetToPermissionForm(presetSelect.value);
+    }
+
+    if (useCustomPermissions) {
+        useCustomPermissions.addEventListener('change', toggleCustomPermissions);
+        toggleCustomPermissions();
+    }
+
+    const passwordInput = document.getElementById('password');
+    if (passwordInput) {
+        passwordInput.addEventListener('input', updatePasswordRules);
+        passwordInput.addEventListener('blur', updatePasswordRules);
+        updatePasswordRules();
+    }
+});
+</script>
+
 <style>
 :root {
     --primary-color: #3498db;
@@ -437,159 +633,4 @@ input::placeholder {
 }
 </style>
 
-<script>
-// Hilfsfunktion: Umlaute auflösen und Sonderzeichen entfernen
-function cleanNameForUsername(text) {
-    if (!text) return '';
-    let cleaned = text.trim().toLowerCase()
-        .replace(/ä/g, 'ae')
-        .replace(/ö/g, 'oe')
-        .replace(/ü/g, 'ue')
-        .replace(/ß/g, 'ss')
-        .replace(/[^a-z]/g, '');
-    return cleaned;
-}
-
-// Hilfsfunktion: Erster Buchstabe groß
-function formatPart(str, len) {
-    if (!str) return '';
-    const part = str.slice(0, len);
-    return part.charAt(0).toUpperCase() + part.slice(1);
-}
-
-// Generiert die Vorschau des Benutzernamens (z.B. SimFri)
-function generateUsername() {
-    const firstName = cleanNameForUsername(document.getElementById('name').value);
-    const lastName = cleanNameForUsername(document.getElementById('last-name').value);
-    let username = '';
-    
-    if (firstName && lastName) {
-        username = formatPart(firstName, 3) + formatPart(lastName, 3);
-    } else if (firstName) {
-        username = formatPart(firstName, 6);
-    } else if (lastName) {
-        username = formatPart(lastName, 6);
-    }
-    
-    const usernameField = document.getElementById('username');
-    if (usernameField) {
-        usernameField.value = username || '';
-    }
-}
-
-// PASSWORT GENERATOR
-function generateSecurePassword() {
-    const length = 16;
-    const charsetLower = "abcdefghijklmnopqrstuvwxyz";
-    const charsetUpper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
-    const charsetNum = "0123456789";
-    const charsetSym = "!@#$%^&*()_+~|}{[]:;?><,.-=";
-
-    let password = "";
-    // Garantiert mindestens 1 Zeichen aus jeder Kategorie
-    password += charsetLower[Math.floor(Math.random() * charsetLower.length)];
-    password += charsetUpper[Math.floor(Math.random() * charsetUpper.length)];
-    password += charsetNum[Math.floor(Math.random() * charsetNum.length)];
-    password += charsetSym[Math.floor(Math.random() * charsetSym.length)];
-
-    const allChars = charsetLower + charsetUpper + charsetNum + charsetSym;
-    // Restliche Zeichen auffüllen
-    for (let i = 4; i < length; i++) {
-        password += allChars[Math.floor(Math.random() * allChars.length)];
-    }
-
-    // Passwort durchmischen
-    password = password.split('').sort(() => 0.5 - Math.random()).join('');
-
-    const pwField = document.getElementById('password');
-    pwField.value = password;
-    
-    // Automatisch sichtbar machen, damit der User es kopieren kann
-    pwField.type = 'text';
-    document.getElementById('toggle-pw-btn').textContent = '🙈';
-    
-    updatePasswordRules();
-}
-
-// PASSWORT SICHTBARKEIT UMSCHALTEN
-function togglePasswordVisibility() {
-    const pwField = document.getElementById('password');
-    const toggleBtn = document.getElementById('toggle-pw-btn');
-    if (pwField.type === "password") {
-        pwField.type = "text";
-        toggleBtn.textContent = '🙈';
-    } else {
-        pwField.type = "password";
-        toggleBtn.textContent = '👁️';
-    }
-}
-
-// Globale Funktion für Passwort-Update
-function updatePasswordRules() {
-    const passwordInput = document.getElementById('password');
-    if (!passwordInput) return;
-
-    const value = String(passwordInput.value || '');
-    
-    const setRuleState = (id, ok) => {
-        const node = document.getElementById(id);
-        if (node) node.classList.toggle('ok', !!ok);
-    };
-
-    setRuleState('pw-rule-length', value.length >= 12);
-    setRuleState('pw-rule-lower', /[a-z]/.test(value));
-    setRuleState('pw-rule-upper', /[A-Z]/.test(value));
-    setRuleState('pw-rule-digit', /[0-9]/.test(value));
-    setRuleState('pw-rule-symbol', /[^A-Za-z0-9]/.test(value));
-}
-
-document.addEventListener('DOMContentLoaded', function () {
-    const permissionPresets = {{ permission_presets | tojson }};
-    const presetSelect = document.getElementById('permission-preset');
-    const useCustomPermissions = document.getElementById('use-custom-permissions');
-    const customPermissions = document.getElementById('custom-permissions');
-
-    function applyPresetToPermissionForm(presetKey) {
-        const preset = permissionPresets[presetKey] || {};
-        const actionDefaults = preset.actions || {};
-        const pageDefaults = preset.pages || {};
-
-        document.querySelectorAll('.permission-action-checkbox').forEach(function (checkbox) {
-            const key = checkbox.name.replace('action_', '');
-            checkbox.checked = !!actionDefaults[key];
-        });
-
-        document.querySelectorAll('.permission-page-checkbox').forEach(function (checkbox) {
-            const key = checkbox.name.replace('page_', '');
-            checkbox.checked = !!pageDefaults[key];
-        });
-    }
-
-    function toggleCustomPermissions() {
-        if (!useCustomPermissions || !customPermissions) {
-            return;
-        }
-        customPermissions.style.display = useCustomPermissions.checked ? 'block' : 'none';
-    }
-
-    if (presetSelect) {
-        presetSelect.addEventListener('change', function () {
-            applyPresetToPermissionForm(this.value);
-        });
-        applyPresetToPermissionForm(presetSelect.value);
-    }
-
-    if (useCustomPermissions) {
-        useCustomPermissions.addEventListener('change', toggleCustomPermissions);
-        toggleCustomPermissions();
-    }
-
-    const passwordInput = document.getElementById('password');
-    if (passwordInput) {
-        passwordInput.addEventListener('input', updatePasswordRules);
-        passwordInput.addEventListener('blur', updatePasswordRules);
-        updatePasswordRules();
-    }
-});
-</script>
 {% endblock %}