118 lines
5 KiB
Python
118 lines
5 KiB
Python
import json
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import os
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from datetime import datetime, timezone
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import config_utils
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import factory
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DNS_LOG_FILE = f'{config_utils.CONFIGS_DIR}/dns-blocklists.log'
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DNS_LOG_MAX = 50
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BL_TYPE_LABELS = {'community': 'Community', 'local': 'Local'}
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def _dnsblocking_log_tail(cfg):
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try:
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log_max_kb = cfg.get('dns_blocking', {}).get('general', {}).get('log_max_kb', 1024)
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size_kb = os.path.getsize(DNS_LOG_FILE) / 1024
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with open(DNS_LOG_FILE) as f:
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lines = f.readlines()
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if not lines:
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return '(log is empty)', ''
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total = len(lines)
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tail = lines[-DNS_LOG_MAX:]
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shown = len(tail)
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hidden = total - shown
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pct = min(100, round(size_kb / log_max_kb * 100)) if log_max_kb else 0
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left = f'Showing {shown} of {total} lines ({hidden} not shown)' if hidden > 0 else f'Showing {shown} of {total} lines'
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right = f'Log file size: {size_kb:.1f} KB ({pct}% of max)'
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summary = (
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'<div class="text-muted" style="display:flex;justify-content:space-between;margin-top:0.5em;">'
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f'<span>{left}</span><span>{right}</span></div>'
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)
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return ''.join(tail).strip(), summary
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except FileNotFoundError:
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return '(log file not found)', ''
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except Exception:
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return '(error reading log)', ''
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def blocklist_stats_html(cfg):
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db_rows = config_utils._bl_db_rows()
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rows = ''
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for bl in cfg.get('dns_blocking', {}).get('blocklists', []):
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name = bl.get('name', '')
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is_local = bl.get('bl_type') == 'local'
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db = db_rows.get(name, {})
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count = db.get('domain_count')
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entries = f'{count:,}' if count is not None else '-'
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if is_local:
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save_as = bl.get('save_as', '')
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bl_path = f'{config_utils.BLOCKLISTS_DIR}/{save_as}' if save_as else ''
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try:
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size_str = config_utils.fmt_bytes(os.path.getsize(bl_path))
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except Exception:
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size_str = '-'
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last_refreshed = 'Local'
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else:
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fetched_at = db.get('fetched_at')
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if fetched_at:
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last_refreshed = (
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f'{datetime.fromtimestamp(fetched_at).strftime("%Y-%m-%d %H:%M")}'
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f' ({config_utils.relative_time(fetched_at, datetime.now(tz=timezone.utc).timestamp())} ago)'
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)
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else:
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last_refreshed = 'Never'
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save_as = bl.get('save_as', '')
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bl_path = f'{config_utils.BLOCKLISTS_DIR}/{save_as}' if save_as else ''
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try:
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size_str = config_utils.fmt_bytes(os.path.getsize(bl_path))
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except Exception:
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size_str = '-'
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rows += (
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'<tr>'
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f'<td class="table-cell">{factory.e(name)}</td>'
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f'<td class="table-cell">{entries}</td>'
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f'<td class="table-cell">{size_str}</td>'
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f'<td class="table-cell">{factory.e(last_refreshed)}</td>'
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'</tr>'
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)
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if not rows:
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return ''
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return (
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'<table class="data-table"><thead><tr>'
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'<th class="table-header">Blocklist</th>'
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'<th class="table-header">Entries</th>'
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'<th class="table-header">Size</th>'
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'<th class="table-header">Last Refreshed</th>'
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'</tr></thead>'
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f'<tbody>{rows}</tbody></table>'
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)
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def collect_tokens(cfg):
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tokens = config_utils.collect_layout_tokens(cfg)
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dns_blk_gen = cfg.get('dns_blocking', {}).get('general', {})
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tokens['GENERAL_LOG_MAX_KB'] = str(dns_blk_gen.get('log_max_kb', '-'))
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tokens['GENERAL_LOG_ERRORS_ONLY'] = 'true' if dns_blk_gen.get('log_errors_only') else 'false'
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tokens['GENERAL_DAILY_EXECUTE_TIME'] = str(dns_blk_gen.get('daily_execute_time_24hr_local', '-'))
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tokens['BLOCKLIST_STATS_HTML'] = blocklist_stats_html(cfg)
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tokens['DNS_LOG_TAIL'], tokens['DNS_LOG_SUMMARY'] = _dnsblocking_log_tail(cfg)
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blocklists = cfg.get('dns_blocking', {}).get('blocklists', [])
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tokens['BLOCKLIST_EXISTING_NAMES_JS'] = json.dumps([bl.get('name', '') for bl in blocklists])
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vlans = cfg.get('vlans', [])
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vlan_checkboxes = ''.join(
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f'<label class="form-checkbox-row">'
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f'<input type="checkbox" name="used_by_vlans" value="{factory.e(v["name"])}" class="form-checkbox">'
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f' <span class="form-checkbox-label">{factory.e(v["name"])}</span>'
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f'</label>'
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for v in vlans if v.get('name')
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)
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tokens['VLAN_USED_BY_CHECKBOXES'] = (
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f'<div class="form-group"><label class="form-label">Used By</label>'
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f'<div>{vlan_checkboxes}</div></div>'
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) if vlan_checkboxes else ''
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content = factory.load_json(f'{factory.PAGES_DIR}/dnsblocking/content.json')
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for table_item in factory.iter_table_items(content.get('items', [])):
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ds = table_item.get('datasource', '')
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tokens[factory.table_token_key(ds)] = factory.build_table(table_item, tokens, config_utils.load_datasource(ds))
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return tokens
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