Adds configurable resourcePath (#9)

This change allows you to modify the resourcePath with a subdirectory through configuration options:

miniprofiler.configure({ resourcePath: '/myapproot' }); app.use(miniprofiler.express());

This allows miniprofiler resources to load if your app root is not /.

Author: sweatercomeback

lib/miniprofiler.js

@@ -10,19 +10,20 @@
  *  Guilherme Oenning, 2016 @goenning
  */
 
- var _ = require('./utils.js');
- var qs = require('querystring');
- var url = require('url');
- var ui = require('./ui.js');
- var clientParser = require('./client-parser.js');
+var _ = require('./utils.js');
+var qs = require('querystring');
+var url = require('url');
+var ui = require('./ui.js');
+var clientParser = require('./client-parser.js');
 
- const hostname = require('os').hostname;
+const hostname = require('os').hostname;
 var ignoredPaths = [];
- var trivialDurationThresholdMilliseconds = 2.5;
- var popupShowTimeWithChildren = false;
- var popupRenderPosition = 'left';
+var trivialDurationThresholdMilliseconds = 2.5;
+var popupShowTimeWithChildren = false;
+var popupRenderPosition = 'left';
+var resourcePath = '/mini-profiler-resources/';
 
- exports.storage = {
+exports.storage = {
   InMemoryStorage: require('./storages/inmemory.js'),
   RedisStorage: require('./storages/redis.js')
 };
@@ -36,7 +37,7 @@ for (let framework of ['koa', 'express', 'hapi']) {
   let func = require(`./middlewares/${framework}.js`);
 
   exports[framework] = function(options) {
-    options = options || { };
+    options = options || {};
 
     if (!options.enable) options.enable = () => { return true; };
     if (!options.authorize) options.authorize = () => { return true; };
@@ -47,7 +48,6 @@ for (let framework of ['koa', 'express', 'hapi']) {
   exports[framework].for = func.buildMiddleware;
 }
 
-var resourcePath = '/mini-profiler-resources/';
 var version = require('../package.json').version;
 
 var contentTypes = {
@@ -100,10 +100,10 @@ function handleRequest(enable, authorize, req, res) {
     var lastPathSegment = segments[segments.length - 1];
     var handler = (lastPathSegment == 'results') ? results : assets;
     handler(req, res, lastPathSegment, (result) => {
-     res.writeHead(result.status, { 'Content-Type': result.type });
-     res.end(result.body);
-     resolve(true);
-   });
+      res.writeHead(result.status, { 'Content-Type': result.type });
+      res.end(result.body);
+      resolve(true);
+    });
   });
 }
 
@@ -140,7 +140,7 @@ function results(req, res, lastPathSegment, done) {
       if (!data) {
         done({
           type: 'text/plain; charset=utf-8',
-          status:404,
+          status: 404,
           body: `Id '${id}' not found.`
         });
         return;
@@ -218,22 +218,24 @@ function include(id) {
  *  - trivialDurationThresholdMilliseconds: double ; any step lasting longer than this will be considered trivial, and hidden by default
  *  - popupShowTimeWithChildren: boolean ; whether or not to include the "time with children" column
  *  - popupRenderPosition: 'left', 'right', 'bottomLeft', 'bottomRight' ; which side of the screen to display timings on
+ *  - resourcePath: string ; if your site root is in a subdirectory, specify here, e.g., /siteroot
  */
- function configure(options){
-   options = options || {};
-
-   ignoredPaths = options.ignoredPaths || ignoredPaths;
-   trivialDurationThresholdMilliseconds = options.trivialDurationThresholdMilliseconds || trivialDurationThresholdMilliseconds;
-   popupShowTimeWithChildren = options.popupShowTimeWithChildren || popupShowTimeWithChildren;
-   popupRenderPosition = options.popupRenderPosition || popupRenderPosition;
-   storage = options.storage || storage;
- }
+function configure(options) {
+  options = options || {};
+
+  ignoredPaths = options.ignoredPaths || ignoredPaths;
+  trivialDurationThresholdMilliseconds = options.trivialDurationThresholdMilliseconds || trivialDurationThresholdMilliseconds;
+  popupShowTimeWithChildren = options.popupShowTimeWithChildren || popupShowTimeWithChildren;
+  popupRenderPosition = options.popupRenderPosition || popupRenderPosition;
+  storage = options.storage || storage;
+  resourcePath = `${options.resourcePath ? options.resourcePath.replace(/\/$/, '') : ''}${resourcePath}`;
+}
 
 /*
  * Begins profiling the given request.
  */
- function startProfiling(request, enabled, authorized) {
-   var currentRequestExtension = {
+function startProfiling(request, enabled, authorized) {
+  var currentRequestExtension = {
     enabled: enabled,
     authorized: authorized
   };
@@ -286,7 +288,7 @@ function include(id) {
 /*
  * Stops profiling the given request.
  */
- function stopProfiling(extension, request){
+function stopProfiling(extension, request) {
   var time = process.hrtime();
 
   extension.stopTime = time;
@@ -301,29 +303,29 @@ function include(id) {
  *
  * You should only use this method directly in cases when calls to addProfiling won't suffice.
  */
- function step(name, request, call) {
-   var time = process.hrtime();
+function step(name, request, call) {
+  var time = process.hrtime();
 
-   var extension = request.miniprofiler;
+  var extension = request.miniprofiler;
 
-   var newStep = makeStep(name, time, extension.stepGraph);
-   extension.stepGraph.steps.push(newStep);
-   extension.stepGraph = newStep;
+  var newStep = makeStep(name, time, extension.stepGraph);
+  extension.stepGraph.steps.push(newStep);
+  extension.stepGraph = newStep;
 
-   var result;
-   if (call.length) {
+  var result;
+  if (call.length) {
     result = call(() => {
-     unstep(name, request);
-   });
+      unstep(name, request);
+    });
   } else {
     try {
-     result = call();
-   } finally {
-     unstep(name, request);
-   }
- }
+      result = call();
+    } finally {
+      unstep(name, request);
+    }
+  }
 
- return result;
+  return result;
 }
 
 /*
@@ -338,11 +340,11 @@ function include(id) {
  *  when the query has completed.  Implicitly, any execution of a callback is considered
  *  to have ended the query.
  */
- function timeQuery(extension, type, query, executeFunction) {
-   var timing = startTimeQuery(extension, type, query);
-   var params = Array.prototype.slice.call(arguments, 4);
+function timeQuery(extension, type, query, executeFunction) {
+  var timing = startTimeQuery(extension, type, query);
+  var params = Array.prototype.slice.call(arguments, 4);
 
-  for(var i = 0; i < params.length; i++){
+  for (var i = 0; i < params.length; i++) {
     if (_.isFunction(params[i])) {
       var param = params[i];
       params[i] = function() {
@@ -403,7 +405,7 @@ function describePerformance(root, request) {
   return ret;
 }
 
-function diff(start, stop){
+function diff(start, stop) {
   var deltaSecs = stop[0] - start[0];
   var deltaNanoSecs = stop[1] - start[1];
 
@@ -415,22 +417,22 @@ function diff(start, stop){
 function callStack(stack) {
   var sp = stack.split('\n');
   var ret = [];
-  for(var i = 2; i < sp.length; i++) {
+  for (var i = 2; i < sp.length; i++) {
     var st = sp[i].trim().split(' ');
     ret.push(st[1]);
   }
   return ret.join(' ');
 }
 
-function describeTimings(timing, root){
+function describeTimings(timing, root) {
   var id = _.uuid();
   var name = timing.name;
   var elapsedMs = diff(timing.startTime, timing.stopTime);
   var sinceRootMs = diff(root.startTime, timing.startTime);
   var customTimings = describeCustomTimings(timing.customTimings, root);
 
   var children = [];
-  for(var i = 0; i < timing.steps.length; i++){
+  for (var i = 0; i < timing.steps.length; i++) {
     var step = timing.steps[i];
     children.push(describeTimings(step, root));
   }
@@ -447,12 +449,12 @@ function describeTimings(timing, root){
 
 function describeCustomTimings(customTimings, root) {
   var ret = {};
-  for(var prop in customTimings) {
+  for (var prop in customTimings) {
 
     var arr = customTimings[prop];
     var retArr = [];
 
-    for(var i = 0; i < arr.length; i++) {
+    for (var i = 0; i < arr.length; i++) {
       var timing = {};
       timing.Id = arr[i].id;
       timing.ExecuteType = arr[i].executeType;
@@ -470,6 +472,6 @@ function describeCustomTimings(customTimings, root) {
   return ret;
 }
 
-function makeStep(name, time, parent){
+function makeStep(name, time, parent) {
   return { name: name, startTime: time, stopTime: null, parent: parent, steps: [], customTimings: {} };
-}
+}