se-report/src/libs/bad.js

report js error to your log-server

/**
 * @desc    错误处理上报模块
 * @author  kangxufeng <kangxufeng@duiba.com.cn>
 * @date    2018-01-15
 */
var T = require('../tools/util');
var info = require('../tools/info');
var getExt = require('./getExt');

var _log_list = [];
var _config = {};

var orgError = window.onerror;
// rewrite window.oerror
window.onerror = function(msg, url, line, col, error) {
  var newMsg = msg;

  if (error && error.stack) {
    newMsg = T.processStackMsg(error);
  }

  if (T.isOBJByType(newMsg, "Event")) {
    newMsg += newMsg.type ?
      ("--" + newMsg.type + "--" + (newMsg.target ?
        (newMsg.target.tagName + "::" + newMsg.target.src) : "")) : "";
  }

  bad.push({
    msg: newMsg,
    target: url,
    rowNum: line,
    colNum: col,
    _orgMsg: msg
  });

  _process_log();
  orgError && orgError.apply(window, arguments);
};

var submit_log_list = [];
var comboTimeout = 0;
// 上报信息
var _submit_log = function() {
  clearTimeout(comboTimeout);

  if (!submit_log_list.length) {
    return;
  }

  var url = _config._reportUrl + submit_log_list.join("&") + "&count=" + submit_log_list.length + "&_t=" + (+new Date);

  if (_config.submit) {
    _config.submit(url);
  } else {
    var _img = new Image();
    _img.src = url;
  }

  comboTimeout = 0;
  submit_log_list = [];
};

// 信息处理、过滤
var _process_log = function(isReportNow) {
  if (!_config._reportUrl) return;
  var randomIgnore = Math.random() >= _config.random;

  while (_log_list.length) {
    var isIgnore = false;
    var report_log = _log_list.shift();

    //有效保证字符不要过长
    report_log.msg = (report_log.msg + "" || "").substr(0, 500);
    // 重复上报
    if (T.isRepeat(report_log, _config.repeat)) continue;

    var log_str = T._report_log_tostring(report_log, submit_log_list.length);
    if (T.isOBJByType(_config.ignore, "Array")) {
      for (var i = 0, l = _config.ignore.length; i < l; i++) {
        var rule = _config.ignore[i];
        if ((T.isOBJByType(rule, "RegExp") && rule.test(log_str[1])) ||
          (T.isOBJByType(rule, "Function") && rule(report_log, log_str[1]))) {
          isIgnore = true;
          break;
        }
      }
    }

    if (!isIgnore) {
      if (!randomIgnore && report_log.level != 20) {
        submit_log_list.push(log_str[0]);
      }
    }
  }

  if (isReportNow) {
    _submit_log(); // 立即上报
  } else if (!comboTimeout) {
    comboTimeout = setTimeout(_submit_log, _config.delay); // 延迟上报
  }
};

var bad = {
  push: function(msg) {
    var data = T.isOBJ(msg) ? T.processError(msg) : {
      msg: msg
    };

    // ext 有默认值, 且上报不包含 ext, 使用默认 ext
    if (_config.ext && !data.ext) {
      data.ext = getExt(_config.ext);
    }

    // 在错误发生时获取页面链接
    if (!data.from) {
      data.from = location.href;
    }

    if (data._orgMsg) {
      var _orgMsg = data._orgMsg;
      delete data._orgMsg;
      data.level = 4;  
    }

    T.extend(data, info);

    _log_list.push(data);

    _process_log();
    return bad;
  },

  report: function(msg) {
    console.log('push', msg);
  },

  init: function(config) { // 初始化
    _config = config;

    // 没有设置pid将不上报
    var pid = _config.pid.toString();
    if (pid) {
      // set default report url and uin
      _config._reportUrl = (_config.url || "/api/log") +
        "?pid=" + pid +
        // "&from=" + encodeURIComponent(location.href) +
        "&";
    }

    // if had error in cache , report now
    if (_log_list.length) {
      _process_log();
    }
  }
}

module.exports = bad;