Files
pixiv/backend/middleware/logger.js
T

135 lines
4.4 KiB
JavaScript

/**
* 日志中间件
*/
const { defaultLogger } = require('../utils/logger');
// 颜色常量
const METHOD_COLORS = {
GET: '\x1b[32m', // 绿色
POST: '\x1b[34m', // 蓝色
PUT: '\x1b[33m', // 黄色
DELETE: '\x1b[31m', // 红色
PATCH: '\x1b[35m', // 紫色
DEFAULT: '\x1b[37m' // 白色
};
// 状态码颜色
const STATUS_COLORS = {
SUCCESS: '\x1b[32m', // 2xx - 绿色
REDIRECT: '\x1b[36m', // 3xx - 青色
CLIENT_ERROR: '\x1b[33m', // 4xx - 黄色
SERVER_ERROR: '\x1b[31m' // 5xx - 红色
};
// 响应时间颜色
const DURATION_COLORS = {
FAST: '\x1b[32m', // < 100ms - 绿色
MEDIUM: '\x1b[33m', // < 500ms - 黄色
SLOW: '\x1b[31m' // >= 500ms - 红色
};
const RESET_COLOR = '\x1b[0m';
// 创建logger实例
const logger = defaultLogger.child('API');
/**
* 自定义日志中间件
*/
function loggerMiddleware(req, res, next) {
// 过滤掉静态资源请求和图片代理请求
const isStaticResource =
req.path.startsWith('/assets/') ||
req.path.startsWith('/downloads/') ||
req.path.includes('.js') ||
req.path.includes('.css') ||
req.path.includes('.ico') ||
req.path.includes('.png') ||
req.path.includes('.jpg') ||
req.path.includes('.jpeg') ||
req.path.includes('.gif') ||
req.path.includes('.svg') ||
req.path.includes('.woff') ||
req.path.includes('.woff2') ||
req.path.includes('.ttf') ||
req.path.includes('.eot');
// 过滤掉图片代理请求
const isImageProxy = req.path === '/api/proxy/image';
// 过滤掉下载任务状态查询请求
const isDownloadTasksQuery =
req.path === '/api/download/tasks' ||
req.path === '/api/download/tasks/active' ||
req.path === '/api/download/tasks/summary' ||
req.path === '/api/download/tasks/changes' ||
req.path === '/api/download/tasks/completed' ||
req.path === '/api/download/registry/stats' ||
/^\/api\/download\/check\/\d+/.test(req.path);
// 过滤掉仓库预览请求(图片预览)
const isRepositoryPreview = req.path === '/api/repository/preview';
// 过滤掉健康检查请求
const isHealthCheck = req.path === '/health';
// 过滤掉获取作者作品的API请求
const isArtistArtworksQuery = /^\/api\/artist\/\d+\/artworks/.test(req.path);
// 过滤掉作品详情请求
const isArtworkDetailQuery = /^\/(?:api\/)?artwork\/\d+/.test(req.path);
// 过滤掉仓库下载检查请求
const isRepositoryCheckDownloadedQuery = /^\/api\/repository\/check-downloaded\/\d+/.test(req.path);
// 只记录重要的API请求,排除静态资源、图片代理、下载任务查询、仓库预览、健康检查、作者作品查询、作品详情和仓库下载检查
if (!isStaticResource && !isImageProxy && !isDownloadTasksQuery && !isRepositoryPreview && !isHealthCheck && !isArtistArtworksQuery && !isArtworkDetailQuery && !isRepositoryCheckDownloadedQuery) {
const start = Date.now();
// 原始响应结束方法
const originalEnd = res.end;
// 重写响应结束方法以获取响应时间
res.end = function (chunk, encoding) {
const duration = Date.now() - start;
const statusCode = res.statusCode;
const method = req.method;
const url = req.originalUrl;
// 获取方法颜色
const methodColor = METHOD_COLORS[method] || METHOD_COLORS.DEFAULT;
// 获取状态码颜色
let statusColor;
if (statusCode >= 200 && statusCode < 300) {
statusColor = STATUS_COLORS.SUCCESS;
} else if (statusCode >= 300 && statusCode < 400) {
statusColor = STATUS_COLORS.REDIRECT;
} else if (statusCode >= 400 && statusCode < 500) {
statusColor = STATUS_COLORS.CLIENT_ERROR;
} else {
statusColor = STATUS_COLORS.SERVER_ERROR;
}
// 获取响应时间颜色
let durationColor;
if (duration < 100) {
durationColor = DURATION_COLORS.FAST;
} else if (duration < 500) {
durationColor = DURATION_COLORS.MEDIUM;
} else {
durationColor = DURATION_COLORS.SLOW;
}
// 输出彩色日志
logger.info(`${methodColor}[${method}]${RESET_COLOR} ${url} ${statusColor}${statusCode}${RESET_COLOR} ${durationColor}${duration}ms${RESET_COLOR}`);
// 调用原始的end方法
originalEnd.call(this, chunk, encoding);
};
}
next();
}
module.exports = { loggerMiddleware };