167 lines
5 KiB
Python
167 lines
5 KiB
Python
from flask import Blueprint, request, redirect, flash
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from auth import require_level
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from config_utils import load_core, save_core, verify_core_hash, queued_msg
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import sanitize
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import validate
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bp = Blueprint('action_apply_port_forwarding', __name__)
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VIEW = '/view/view_port_forwarding'
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_VALID_PROTOS_STR = ', '.join(sorted(validate.VALID_PROTOCOLS))
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def _row_index():
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try:
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return int(request.form.get('row_index', ''))
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except (ValueError, TypeError):
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return None
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def _hash_ok():
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if not verify_core_hash(request.form.get('config_hash', '')):
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flash('Configuration was modified by another session. Please refresh and try again.', 'error')
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return False
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return True
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def _parse_entry():
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"""Parse and validate form fields. Returns (entry_dict, None) or (None, already_flashed)."""
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description = sanitize.text(request.form.get('description', ''))
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protocol = sanitize.filtervalue(request.form.get('protocol', ''), validate.VALID_PROTOCOLS)
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dest_port_raw = request.form.get('dest_port', '').strip()
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nat_ip_raw = request.form.get('nat_ip', '').strip()
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nat_port_raw = request.form.get('nat_port', '').strip()
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if not protocol:
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flash(f'The configuration has not been saved because the protocol is invalid. '
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f'Accepted values: {_VALID_PROTOS_STR}.', 'error')
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return None, True
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if not dest_port_raw:
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flash('The configuration has not been saved because the external port is required.', 'error')
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return None, True
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dest_port = validate.port(dest_port_raw)
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if not dest_port:
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flash(f'The configuration has not been saved because "{dest_port_raw}" is not a valid port number (1-65535).', 'error')
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return None, True
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if not nat_ip_raw:
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flash('The configuration has not been saved because the NAT IP address is required.', 'error')
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return None, True
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nat_ip = validate.ip(nat_ip_raw)
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if not nat_ip:
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flash(f'The configuration has not been saved because "{nat_ip_raw}" is not a valid IP address.', 'error')
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return None, True
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if not nat_port_raw:
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flash('The configuration has not been saved because the NAT port is required.', 'error')
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return None, True
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nat_port = validate.port(nat_port_raw)
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if not nat_port:
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flash(f'The configuration has not been saved because "{nat_port_raw}" is not a valid port number (1-65535).', 'error')
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return None, True
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return {
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'description': description,
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'protocol': protocol,
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'dest_port': dest_port,
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'nat_ip': nat_ip,
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'nat_port': nat_port,
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'enabled': True,
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}, None
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@bp.route('/action/add_port_forward', methods=['POST'])
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@require_level('administrator')
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def add_port_forward():
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entry, err = _parse_entry()
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if err:
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return redirect(VIEW)
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if not _hash_ok():
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return redirect(VIEW)
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core = load_core()
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core.setdefault('port_forwarding', []).append(entry)
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save_core(core)
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flash(queued_msg('core apply'), 'success')
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return redirect(VIEW)
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@bp.route('/action/toggle_port_forward', methods=['POST'])
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@require_level('administrator')
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def toggle_port_forward():
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idx = _row_index()
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if idx is None:
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flash('Invalid request.', 'error')
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return redirect(VIEW)
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if not _hash_ok():
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return redirect(VIEW)
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core = load_core()
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items = core.get('port_forwarding', [])
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if idx < 0 or idx >= len(items):
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flash('Entry not found.', 'error')
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return redirect(VIEW)
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items[idx]['enabled'] = not items[idx].get('enabled', True)
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save_core(core)
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flash(queued_msg('core apply'), 'success')
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return redirect(VIEW)
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@bp.route('/action/edit_port_forward', methods=['POST'])
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@require_level('administrator')
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def edit_port_forward():
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idx = _row_index()
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if idx is None:
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flash('Invalid request.', 'error')
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return redirect(VIEW)
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entry, err = _parse_entry()
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if err:
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return redirect(VIEW)
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if not _hash_ok():
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return redirect(VIEW)
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core = load_core()
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items = core.get('port_forwarding', [])
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if idx < 0 or idx >= len(items):
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flash('Entry not found.', 'error')
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return redirect(VIEW)
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items[idx] = entry
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items[idx]['enabled'] = request.form.get('enabled') == 'on'
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save_core(core)
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flash(queued_msg('core apply'), 'success')
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return redirect(VIEW)
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@bp.route('/action/delete_port_forward', methods=['POST'])
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@require_level('administrator')
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def delete_port_forward():
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idx = _row_index()
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if idx is None:
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flash('Invalid request.', 'error')
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return redirect(VIEW)
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if not _hash_ok():
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return redirect(VIEW)
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core = load_core()
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items = core.get('port_forwarding', [])
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if idx < 0 or idx >= len(items):
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flash('Entry not found.', 'error')
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return redirect(VIEW)
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removed = items.pop(idx)
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save_core(core)
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flash(queued_msg('core apply'), 'success')
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return redirect(VIEW)
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