39 lines
1.4 KiB
Python
39 lines
1.4 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, apply_msg
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import sanitize
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bp = Blueprint('action_apply_upstream_dns', __name__)
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@bp.route('/action/apply_upstream_dns', methods=['POST'])
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@require_level('administrator')
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def apply_upstream_dns():
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strict_order = 'strict_order' in request.form
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cache_size_raw = request.form.get('cache_size', '').strip()
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upstream_servers = [sanitize.ip(s) for s in request.form.getlist('upstream_servers') if s.strip()]
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upstream_servers = [s for s in upstream_servers if s]
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try:
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cache_size = int(cache_size_raw)
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if cache_size < 0:
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raise ValueError
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except (ValueError, TypeError):
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flash('Cache Size must be a non-negative integer.', 'error')
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return redirect('/view/view_upstream_dns')
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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/view_upstream_dns')
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core = load_core()
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core.setdefault('upstream_dns', {}).update({
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'strict_order': strict_order,
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'cache_size': cache_size,
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'upstream_servers': upstream_servers,
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})
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save_core(core)
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flash(apply_msg(), 'success')
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return redirect('/view/view_upstream_dns')
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