63 lines
2 KiB
Python
63 lines
2 KiB
Python
import re
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import subprocess
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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, apply_msg
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import sanitize
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bp = Blueprint('action_apply_interface', __name__)
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_VIEW = '/view/view_general'
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def _get_system_interfaces():
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try:
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r = subprocess.run(['ip', 'link', 'show'], capture_output=True, text=True, timeout=5)
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names = re.findall(r'^\d+:\s+(\S+):', r.stdout, re.MULTILINE)
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return {n.split('@')[0] for n in names} - {'lo'}
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except Exception:
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return set()
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@bp.route('/action/apply_interface', methods=['POST'])
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@require_level('administrator')
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def apply_interface():
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idx_raw = request.form.get('row_index', '').strip()
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interface = sanitize.interface_name(request.form.get('interface', ''))
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try:
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idx = int(idx_raw)
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if idx not in (0, 1):
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raise ValueError
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except (ValueError, TypeError):
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flash('Invalid request.', 'error')
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return redirect(_VIEW)
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if not interface:
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flash('Interface name is required.', 'error')
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return redirect(_VIEW)
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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 redirect(_VIEW)
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core = load_core()
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gen = core.setdefault('general', {})
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other_key = 'lan_interface' if idx == 0 else 'wan_interface'
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if interface == gen.get(other_key, ''):
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flash('WAN and LAN interfaces must be different.', 'error')
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return redirect(_VIEW)
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available = _get_system_interfaces()
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if available and interface not in available:
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flash(f"Interface '{interface}' does not exist on this system.", 'error')
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return redirect(_VIEW)
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key = 'wan_interface' if idx == 0 else 'lan_interface'
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gen[key] = interface
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save_core(core)
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flash(apply_msg(), 'success')
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return redirect(_VIEW)
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