Upgrade allow adding image in ticket details page comment section

app/__init__.py

@@ -133,10 +133,23 @@ def create_app(config_name=None):
     with app.app_context():
         db.create_all()
         _seed_admin(app)
+        _seed_settings()
 
     return app
 
 
+def _seed_settings():
+    """Ensure all required system settings exist with safe defaults."""
+    from app.models import SystemSetting
+    defaults = [
+        ('registration_enabled', 'true', 'Allow new users to self-register via /auth/register'),
+    ]
+    for key, value, description in defaults:
+        if SystemSetting.get(key) is None:
+            SystemSetting.set(key, value, description)
+    db.session.commit()
+
+
 def _seed_admin(app):
     """Create the default admin account if none exists."""
     from app.models import User, UserRole

app/models.py

@@ -308,4 +308,49 @@ class KBAttachment(db.Model):
         return f'/admin/kb/files/{self.stored_name}'
 
     def __repr__(self):
-        return f'<KBAttachment {self.filename}>'
+        return f'<KBAttachment {self.filename}>'
+
+
+class SystemSetting(db.Model):
+    """Key-value store for application-wide configuration flags.
+
+    Values are persisted as strings; helper class methods handle
+    typed access so callers never touch raw strings directly.
+    """
+    __tablename__ = 'system_settings'
+
+    id          = db.Column(db.Integer, primary_key=True)
+    key         = db.Column(db.String(100), unique=True, nullable=False, index=True)
+    value       = db.Column(db.String(500), nullable=False)
+    description = db.Column(db.String(256))
+    updated_at  = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+
+    @classmethod
+    def get(cls, key, default=None):
+        """Return the raw string value for *key*, or *default* if absent."""
+        row = cls.query.filter_by(key=key).first()
+        return row.value if row else default
+
+    @classmethod
+    def get_bool(cls, key, default=True):
+        """Return the value for *key* coerced to bool."""
+        raw = cls.get(key)
+        if raw is None:
+            return default
+        return raw.lower() in ('1', 'true', 'yes', 'on')
+
+    @classmethod
+    def set(cls, key, value, description=None):
+        """Upsert *key* = *value*.  Caller is responsible for committing."""
+        row = cls.query.filter_by(key=key).first()
+        if row:
+            row.value = str(value)
+            if description is not None:
+                row.description = description
+        else:
+            row = cls(key=key, value=str(value), description=description)
+            db.session.add(row)
+        return row
+
+    def __repr__(self):
+        return f'<SystemSetting {self.key}={self.value}>'

app/routes/admin.py

@@ -741,4 +741,38 @@ def activity_logs():
 
 
 def _roles():
-    return [UserRole.EMPLOYEE, UserRole.IT_STAFF, UserRole.ADMIN]
+    return [UserRole.EMPLOYEE, UserRole.IT_STAFF, UserRole.ADMIN]
+
+
+@admin_bp.route('/settings', methods=['GET', 'POST'])
+@admin_required
+def settings():
+    from app.models import SystemSetting
+
+    if request.method == 'POST':
+        new_value = '1' if request.form.get('registration_enabled') == '1' else '0'
+        old_value = SystemSetting.get('registration_enabled', 'true')
+        SystemSetting.set(
+            'registration_enabled',
+            new_value,
+            'Allow new users to self-register via /auth/register'
+        )
+        db.session.commit()
+
+        state_label = 'enabled' if new_value == '1' else 'disabled'
+        log_action(
+            current_user.id,
+            'setting_update',
+            'system_setting',
+            None,
+            f'registration_enabled changed from {old_value} to {new_value} by admin_id={current_user.id}'
+        )
+        logger.info(
+            f'[ADMIN SETTINGS] registration_enabled={new_value} '
+            f'by admin_id={current_user.id} email={current_user.email}'
+        )
+        flash(f'User registration has been {state_label}.', 'success')
+        return redirect(url_for('admin.settings'))
+
+    registration_enabled = SystemSetting.get_bool('registration_enabled', default=True)
+    return render_template('admin/settings.html', registration_enabled=registration_enabled)

app/routes/api.py

@@ -88,8 +88,10 @@ def get_comments(ticket_id):
             'can_delete' : current_user.is_it_staff or c.author_id == current_user.id,
             'attachments': [
                 {
-                    'id'      : a.id,
+                    'id'       : a.id,
-                    'filename': a.filename,
+                    'filename' : a.filename,
+                    'mime_type': a.mime_type or '',
+                    'is_image' : (a.mime_type or '').startswith('image/'),
                 }
                 for a in c.attachments.all()
             ],

app/routes/auth.py

@@ -63,6 +63,12 @@ def register():
     if current_user.is_authenticated:
         return redirect(url_for('tickets.dashboard'))
 
+    from app.models import SystemSetting
+    if not SystemSetting.get_bool('registration_enabled', default=True):
+        logger.info(f'[AUTH REGISTER BLOCKED] Registration is disabled. ip={request.remote_addr}')
+        flash('Self-registration is currently disabled. Please contact your IT administrator.', 'warning')
+        return redirect(url_for('auth.login'))
+
     if request.method == 'POST':
         email      = request.form.get('email', '').strip().lower()
         username   = request.form.get('username', '').strip()

app/routes/tickets.py

@@ -348,9 +348,15 @@ def download_attachment(att_id):
                 f'user_id={current_user.id}'
             )
             abort(403)
-    upload_dir = current_app.config['UPLOAD_FOLDER']
+    upload_dir  = current_app.config['UPLOAD_FOLDER']
-    return send_from_directory(upload_dir, att.stored_name, as_attachment=True,
+    is_image    = (att.mime_type or '').startswith('image/')
-                               download_name=att.filename)
+    return send_from_directory(
+        upload_dir,
+        att.stored_name,
+        as_attachment = not is_image,   # images render inline; other files force-download
+        download_name = att.filename,
+        mimetype      = att.mime_type or None,
+    )
 
 
 # ─── Notifications ────────────────────────────────────────────────────────────

app/services/notification_service.py

@@ -226,6 +226,16 @@ def notify_comment_added(comment):
         'body'       : comment.body,
         'created_at' : comment.created_at.strftime('%b %d, %Y %H:%M'),
         'author_id'  : comment.author_id,
+        'can_delete' : True,   # the author always can; recipient-side JS checks role too
+        'attachments': [
+            {
+                'id'       : a.id,
+                'filename' : a.filename,
+                'mime_type': a.mime_type or '',
+                'is_image' : (a.mime_type or '').startswith('image/'),
+            }
+            for a in comment.attachments.all()
+        ],
     }
     def _emit_comment():
         socketio.emit(

app/templates/admin/settings.html

@@ -0,0 +1,69 @@
+{% extends "base.html" %}
+{% block title %}System Settings — TechDesk{% endblock %}
+
+{% block content %}
+<div class="page-header" style="margin-bottom:28px;">
+  <div>
+    <h1 class="page-title">System Settings</h1>
+    <p class="page-subtitle">Manage application-wide configuration flags.</p>
+  </div>
+</div>
+
+{% with messages = get_flashed_messages(with_categories=true) %}
+  {% for cat, msg in messages %}
+  <div class="alert alert-{{ cat }} alert-dismissible fade show" role="alert">
+    {{ msg }}
+    <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
+  </div>
+  {% endfor %}
+{% endwith %}
+
+<div class="card" style="max-width:640px;">
+  <div class="card-header" style="padding:16px 20px;border-bottom:1px solid var(--border);">
+    <h5 class="mb-0" style="font-size:15px;font-weight:600;">
+      <i class="bi bi-person-gear me-2"></i>User Registration
+    </h5>
+  </div>
+  <div class="card-body" style="padding:20px;">
+    <p style="font-size:13px;color:var(--muted);margin-bottom:20px;">
+      When disabled, the <code>/auth/register</code> endpoint redirects all visitors to the login
+      page with an informational message. Existing accounts and admin-created accounts are
+      unaffected.
+    </p>
+
+    <form method="POST" action="{{ url_for('admin.settings') }}">
+      <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">
+
+      <div class="d-flex align-items-center justify-content-between p-3"
+           style="border:1px solid var(--border);border-radius:10px;background:var(--surface);">
+        <div>
+          <div style="font-weight:600;font-size:14px;">
+            <i class="bi bi-person-plus me-2"></i>Allow Self-Registration
+          </div>
+          <div style="font-size:12px;color:var(--muted);margin-top:3px;">
+            Permits new employees to create their own accounts via the Register page.
+          </div>
+        </div>
+        <div class="d-flex align-items-center gap-3" style="flex-shrink:0;margin-left:16px;">
+          <span class="badge {% if registration_enabled %}bg-success{% else %}bg-secondary{% endif %}"
+                style="font-size:11px;padding:5px 10px;">
+            {{ 'Enabled' if registration_enabled else 'Disabled' }}
+          </span>
+          {% if registration_enabled %}
+            <button type="submit" name="registration_enabled" value="0"
+                    class="btn btn-sm btn-outline-danger"
+                    onclick="return confirm('Disable self-registration? New users will not be able to sign up independently.')">
+              <i class="bi bi-toggle-on me-1"></i>Disable
+            </button>
+          {% else %}
+            <button type="submit" name="registration_enabled" value="1"
+                    class="btn btn-sm btn-outline-success">
+              <i class="bi bi-toggle-off me-1"></i>Enable
+            </button>
+          {% endif %}
+        </div>
+      </div>
+    </form>
+  </div>
+</div>
+{% endblock %}

app/templates/base.html

@@ -323,6 +323,9 @@
     <li><a href="{{ url_for('admin.activity_logs') }}" class="{{ 'active' if request.endpoint == 'admin.activity_logs' }}">
       <i class="bi bi-list-ul"></i> Activity Logs
     </a></li>
+    <li><a href="{{ url_for('admin.settings') }}" class="{{ 'active' if request.endpoint == 'admin.settings' }}">
+      <i class="bi bi-gear"></i> Settings
+    </a></li>
     {% endif %}
   </ul>
   {% endif %}

app/templates/tickets/detail.html

@@ -105,11 +105,21 @@
       <div class="comment-body">{{ comment.body }}</div>
       {% set c_atts = comment.attachments.all() %}
       {% if c_atts %}
-      <div class="mt-2 d-flex flex-wrap gap-2">
+      <div class="mt-2">
         {% for att in c_atts %}
-        <a href="{{ url_for('tickets.download_attachment', att_id=att.id) }}" class="btn btn-secondary btn-sm">
+          {% if att.mime_type and att.mime_type.startswith('image/') %}
-          <i class="bi bi-download me-1"></i>{{ att.filename }}
+          <a href="{{ url_for('tickets.download_attachment', att_id=att.id) }}"
-        </a>
+             target="_blank" class="comment-img-link">
+            <img src="{{ url_for('tickets.download_attachment', att_id=att.id) }}"
+                 alt="{{ att.filename }}"
+                 class="comment-img-thumb"/>
+          </a>
+          {% else %}
+          <a href="{{ url_for('tickets.download_attachment', att_id=att.id) }}"
+             class="btn btn-secondary btn-sm me-1 mb-1">
+            <i class="bi bi-download me-1"></i>{{ att.filename }}
+          </a>
+          {% endif %}
         {% endfor %}
       </div>
       {% endif %}
@@ -131,11 +141,15 @@
           <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
           <div class="mb-3">
             <textarea id="comment-body" class="form-control" name="body" rows="4" required
-                      placeholder="Add your update, follow-up, or response here…"></textarea>
+                      placeholder="Add your update, follow-up, or response here… (you can also paste images directly)"></textarea>
           </div>
+          <!-- Image preview strip — populated by paste or file picker -->
+          <div id="img-preview-strip" style="display:none;flex-wrap:wrap;gap:8px;margin-bottom:12px;"></div>
           <div class="mb-3">
-            <label class="form-label">Attachments</label>
+            <label class="form-label">Attachments
-            <input type="file" class="form-control" name="attachments" multiple
+              <span style="font-size:11px;color:var(--muted);font-weight:400;">&nbsp;· images, PDF, documents — or paste an image into the text box</span>
+            </label>
+            <input id="attachment-input" type="file" class="form-control" name="attachments" multiple
                    accept=".png,.jpg,.jpeg,.gif,.pdf,.doc,.docx,.txt,.zip,.log"/>
           </div>
           {% if current_user.is_it_staff %}
@@ -181,6 +195,75 @@ if (typeof socket !== 'undefined') {
   });
 }
 
+// ── Pasted-image accumulator ──────────────────────────────────────────────────
+// Files added via clipboard paste are stored here and merged into the FormData
+// on submit, since a paste event cannot modify a real <input type=file>.
+let pastedFiles = [];
+
+function rebuildPreviewStrip() {
+  // Collect all files: pasted images + files chosen via the picker
+  const pickerFiles = Array.from(document.getElementById('attachment-input').files || []);
+  const allFiles    = [...pastedFiles, ...pickerFiles];
+  const strip       = document.getElementById('img-preview-strip');
+
+  if (allFiles.length === 0) { strip.style.display = 'none'; strip.innerHTML = ''; return; }
+
+  strip.style.display = 'flex';
+  strip.innerHTML = '';
+  allFiles.forEach((file, idx) => {
+    const wrapper = document.createElement('div');
+    wrapper.style.cssText = 'position:relative;display:inline-block;';
+
+    if (file.type.startsWith('image/')) {
+      const img = document.createElement('img');
+      img.style.cssText = 'width:80px;height:80px;object-fit:cover;border-radius:6px;border:1px solid var(--border);cursor:pointer;';
+      img.title = file.name;
+      img.src   = URL.createObjectURL(file);
+      img.onclick = () => window.open(img.src, '_blank');
+      wrapper.appendChild(img);
+    } else {
+      const label = document.createElement('div');
+      label.style.cssText = 'width:80px;height:80px;border-radius:6px;border:1px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:11px;color:var(--muted);text-align:center;padding:4px;word-break:break-all;background:var(--surface);';
+      label.textContent = file.name;
+      wrapper.appendChild(label);
+    }
+
+    // Only pasted files (idx < pastedFiles.length) get a remove button
+    // Picker files are managed via the native file input
+    if (idx < pastedFiles.length) {
+      const rm = document.createElement('button');
+      rm.type = 'button';
+      rm.innerHTML = '&times;';
+      rm.style.cssText = 'position:absolute;top:-6px;right:-6px;width:18px;height:18px;border-radius:50%;border:none;background:var(--danger);color:#fff;font-size:12px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;';
+      rm.onclick = () => { pastedFiles.splice(idx, 1); rebuildPreviewStrip(); };
+      wrapper.appendChild(rm);
+    }
+    strip.appendChild(wrapper);
+  });
+}
+
+// Paste images from clipboard into the textarea
+document.getElementById('comment-body').addEventListener('paste', function(e) {
+  const items = (e.clipboardData || window.clipboardData).items;
+  let caught = false;
+  for (const item of items) {
+    if (item.kind === 'file' && item.type.startsWith('image/')) {
+      const file = item.getAsFile();
+      if (file) {
+        // Give the file a deterministic name
+        const ext  = item.type.split('/')[1] || 'png';
+        const named = new File([file], `paste-${Date.now()}.${ext}`, { type: item.type });
+        pastedFiles.push(named);
+        caught = true;
+      }
+    }
+  }
+  if (caught) { e.preventDefault(); rebuildPreviewStrip(); }
+});
+
+// Keep preview in sync when user changes the file picker selection
+document.getElementById('attachment-input').addEventListener('change', rebuildPreviewStrip);
+
 // ── AJAX comment form submit ──────────────────────────────────────────────────
 document.getElementById('comment-form').addEventListener('submit', async function(e) {
   e.preventDefault();
@@ -194,7 +277,10 @@ document.getElementById('comment-form').addEventListener('submit', async functio
   btn.disabled = true;
   btn.innerHTML = '<span class="spinner-border spinner-border-sm me-2"></span>Posting…';
 
+  // Build FormData manually so we can append pasted files (which are not in
+  // the real <input type=file> and therefore not included automatically).
   const fd = new FormData(this);
+  pastedFiles.forEach(f => fd.append('attachments', f, f.name));
 
   try {
     const resp = await fetch(window.location.pathname, {
@@ -204,15 +290,12 @@ document.getElementById('comment-form').addEventListener('submit', async functio
     });
 
     if (resp.redirected || resp.ok) {
-      // Success — clear the form
       document.getElementById('comment-body').value = '';
-      const fileInput = this.querySelector('input[type="file"]');
+      document.getElementById('attachment-input').value = '';
-      if (fileInput) fileInput.value = '';
+      pastedFiles = [];
+      rebuildPreviewStrip();
       const internalCb = document.getElementById('is_internal');
       if (internalCb) internalCb.checked = false;
-      // The server will push the new comment via socket to all viewers including us.
-      // Fetch the latest comments to make sure we have it (handles the case where
-      // the socket push arrives before or after the AJAX response).
       await refreshComments();
     } else {
       err.textContent = 'Failed to post comment (HTTP ' + resp.status + '). Please try again.';
@@ -314,11 +397,16 @@ function buildCommentEl(c) {
          </button>
        </form>`
     : '';
-  const atts = (c.attachments || []).map(a =>
+  const atts = (c.attachments || []).map(a => {
-    `<a href="/attachments/${a.id}" class="btn btn-secondary btn-sm">
+    if (a.is_image) {
-       <i class="bi bi-download me-1"></i>${a.filename}
+      return `<a href="/attachments/${a.id}" target="_blank" class="comment-img-link">
-     </a>`
+                <img src="/attachments/${a.id}" alt="${a.filename}" class="comment-img-thumb"/>
-  ).join('');
+              </a>`;
+    }
+    return `<a href="/attachments/${a.id}" class="btn btn-secondary btn-sm me-1 mb-1">
+              <i class="bi bi-download me-1"></i>${a.filename}
+            </a>`;
+  }).join('');
 
   wrap.innerHTML = `
     <div class="d-flex align-items-center justify-content-between mb-2">
@@ -344,6 +432,18 @@ function buildCommentEl(c) {
 <style>
 @keyframes spin { to { transform: rotate(360deg); } }
 .spin { animation: spin .6s linear infinite; display: inline-block; }
+.comment-img-thumb {
+  max-width: 220px;
+  max-height: 180px;
+  border-radius: 6px;
+  border: 1px solid var(--border);
+  cursor: pointer;
+  display: block;
+  margin: 4px 4px 0 0;
+  transition: opacity .15s;
+}
+.comment-img-thumb:hover { opacity: .85; }
+.comment-img-link { display: inline-block; }
 </style>
   </div>
 

migrations/alembic.ini

@@ -0,0 +1,49 @@
+# A generic, single database configuration.
+# This file is used by Alembic / Flask-Migrate for logging configuration.
+# The actual database URL is injected at runtime by env.py via Flask's
+# current_app — the sqlalchemy.url value here is intentionally a placeholder.
+
+[alembic]
+script_location = migrations
+
+# Placeholder — overridden at runtime by env.py (run_migrations_online).
+sqlalchemy.url = driver://user:pass@localhost/dbname
+
+[loggers]
+keys = root,sqlalchemy,alembic,flask_migrate
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[logger_flask_migrate]
+level = INFO
+handlers =
+qualname = flask_migrate
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

migrations/env.py

@@ -4,7 +4,10 @@ from alembic import context
 
 config = context.config
 if config.config_file_name is not None:
-    fileConfig(config.config_file_name)
+    try:
+        fileConfig(config.config_file_name)
+    except FileNotFoundError:
+        pass  # alembic.ini absent or CWD mismatch — Flask-Migrate supplies logging elsewhere
 
 target_metadata = current_app.extensions['migrate'].db.metadata
 

migrations/versions/002_add_system_settings.py

@@ -0,0 +1,53 @@
+"""Add system_settings table for application-wide configuration flags.
+
+Revision ID: 002_add_system_settings
+Revises: 001_widen_ticket_history_values
+Create Date: 2026-03-30
+
+Rationale
+---------
+Introduces a generic key-value settings store so that runtime configuration
+flags (such as registration_enabled) can be toggled by administrators through
+the UI without requiring a code deployment or server restart.
+
+Apply
+-----
+    flask db upgrade
+
+Rollback
+--------
+    flask db downgrade
+"""
+
+from alembic import op
+import sqlalchemy as sa
+
+revision = '002_add_system_settings'
+down_revision = '001_widen_ticket_history_values'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.create_table(
+        'system_settings',
+        sa.Column('id',          sa.Integer(),    nullable=False),
+        sa.Column('key',         sa.String(100),  nullable=False),
+        sa.Column('value',       sa.String(500),  nullable=False),
+        sa.Column('description', sa.String(256),  nullable=True),
+        sa.Column('updated_at',  sa.DateTime(),   nullable=True),
+        sa.PrimaryKeyConstraint('id'),
+    )
+    op.create_index('ix_system_settings_key', 'system_settings', ['key'], unique=True)
+
+    # Seed the default: registration is open on fresh installs.
+    op.execute(
+        "INSERT INTO system_settings (key, value, description, updated_at) "
+        "VALUES ('registration_enabled', 'true', "
+        "'Allow new users to self-register via /auth/register', NOW())"
+    )
+
+
+def downgrade():
+    op.drop_index('ix_system_settings_key', table_name='system_settings')
+    op.drop_table('system_settings')