Current Dev State

static/js/ketcher2/node_modules/budo/lib/simple-http-logger.js

@@ -0,0 +1,75 @@
+var log = require('bole')('budo')
+var onResHeaders = require('on-headers')
+var onResFinished = require('on-finished')
+
+module.exports = simpleHttpLoggerMiddleware
+function simpleHttpLoggerMiddleware (opts) {
+  opts = opts || {}
+
+  var httpLogger = function simpleHttpLogger (req, res, next) {
+    if (httpLogger.ignores.indexOf(req.url) >= 0) return next()
+    if (!req.url) return next()
+
+    // request data
+    req._startAt = undefined
+
+    // response data
+    res._startAt = undefined
+
+    // record request start
+    recordStartTime.call(req)
+
+    var byteLength = 0
+    var logRequest = function () {
+      if (!req._startAt || !res._startAt) {
+        // missing request and/or response start time
+        return
+      }
+
+      // calculate diff
+      var ms = (res._startAt[0] - req._startAt[0]) * 1000 +
+        (res._startAt[1] - req._startAt[1]) * 1e-6
+
+      log.info({
+        elapsed: ms,
+        contentLength: byteLength,
+        method: (req.method || 'GET').toUpperCase(),
+        url: req.url,
+        statusCode: res.statusCode,
+        type: httpLogger.type === 'static' ? undefined : httpLogger.type,
+        colors: {
+          elapsed: ms > 1000 ? 'yellow' : 'dim'
+        }
+      })
+    }
+
+    var isAlreadyLogging = res._simpleHttpLogger
+    res._simpleHttpLogger = true
+
+    if (!isAlreadyLogging) {
+      // record response start
+      onResHeaders(res, recordStartTime)
+
+      // log when response finished
+      onResFinished(res, logRequest)
+
+      var writeFn = res.write
+
+      // catch content-length of payload
+      res.write = function (payload) {
+        if (payload) byteLength += payload.length
+        return writeFn.apply(res, arguments)
+      }
+    }
+
+    next()
+  }
+
+  httpLogger.ignores = [].concat(opts.ignores).filter(Boolean)
+  httpLogger.type = 'static'
+  return httpLogger
+}
+
+function recordStartTime () {
+  this._startAt = process.hrtime()
+}