mteehan
37039351be
- wireguard: POST /peers with JSON encoding (was /add-peer) - rules: delete by rule_id in URL path (was JSON body); pass rule objects with id from server; add hx-disable to initial render - nat: port forward delete uses URL path params to match blueprint - nat: masquerade toggle uses native hx-post/hx-vals (was inline fetch) - app.js renderers updated to use URL path deletes for rules and forwards - remove TODO.md
100 lines
2.8 KiB
Python
100 lines
2.8 KiB
Python
"""
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webui/api/logs.py - Log viewing API blueprint.
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Serves log content to the /logs page via HTMX endpoints:
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/api/logs/journal — systemd journal for vacuum-wall
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/api/logs/nginx/access — nginx access log tail
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/api/logs/nginx/error — nginx error log tail
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/api/logs/dnsmasq — systemd journal for dnsmasq
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/api/logs/app — Vacuum Wall application log file
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"""
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import logging
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import subprocess
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from pathlib import Path
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from flask import Blueprint, render_template_string
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logger = logging.getLogger(__name__)
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bp = Blueprint("logs", __name__)
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PROJECT_DIR = Path(__file__).resolve().parent.parent
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APP_LOG_FILE = PROJECT_DIR / "data" / "logs" / "vacuum-wall.log"
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_MAX_LINES = 200
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def _tail_file(path: str, n: int = _MAX_LINES) -> str:
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"""Return the last *n* lines of a file."""
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try:
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with open(path) as f:
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lines = f.readlines()
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return "".join(lines[-n:])
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except FileNotFoundError:
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return "(log file not found)\n"
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except PermissionError:
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return "(permission denied)\n"
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def _sudo_journalctl(unit: str, n: int = _MAX_LINES) -> str:
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"""Run ``sudo journalctl -u <unit> --no-pager -n <n>`` and return output."""
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try:
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result = subprocess.run(
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["sudo", "journalctl", "-u", unit, "--no-pager", "-n", str(n)],
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capture_output=True,
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text=True,
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timeout=10,
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)
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output = result.stdout.strip()
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return output if output else f"(no journal entries for {unit})\n"
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except (subprocess.TimeoutExpired, FileNotFoundError) as exc:
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return f"(error reading journal: {exc})\n"
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_LOG_LINE_TEMPLATE = """\
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{% for line in lines %}
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<div class="log-line{% if 'ERROR' in line %} log-error{% elif 'WARN' in line %} log-warn{% endif %}">{{ line | e }}</div>
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{% endfor %}"""
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def _render_log_lines(text: str) -> str:
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"""Render raw log text into HTML fragment with line-by-line coloring."""
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lines = text.rstrip("\n").split("\n") if text.strip() else []
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return render_template_string(_LOG_LINE_TEMPLATE, lines=lines)
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# ---------------------------------------------------------------------------
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# Endpoints
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# ---------------------------------------------------------------------------
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@bp.route("/journal")
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def journal():
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text = _sudo_journalctl("vacuum-wall")
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return _render_log_lines(text)
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@bp.route("/nginx/access")
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def nginx_access():
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text = _tail_file("/var/log/nginx/access.log")
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return _render_log_lines(text)
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@bp.route("/nginx/error")
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def nginx_error():
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text = _tail_file("/var/log/nginx/error.log")
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return _render_log_lines(text)
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@bp.route("/dnsmasq")
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def dnsmasq():
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text = _sudo_journalctl("dnsmasq")
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return _render_log_lines(text)
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@bp.route("/app")
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def app_log():
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text = _tail_file(str(APP_LOG_FILE))
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return _render_log_lines(text)
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