/
source-files.js
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/
source-files.js
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/**
* Source Files middleware is responsible for serving all the source files under the test.
*/
var querystring = require('querystring');
var common = require('./common');
var pause = require('connect').utils.pause;
var findByPath = function(files, path) {
for (var i = 0; i < files.length; i++) {
if (files[i].path === path) {
return files[i];
}
}
return null;
};
var createSourceFilesMiddleware = function(filesPromise, serveFile,
/* config.basePath */ basePath) {
return function(request, response, next) {
var requestedFilePath = querystring.unescape(request.url)
.replace(/\?.*/, '')
.replace(/^\/absolute/, '')
.replace(/^\/base/, basePath);
// Need to pause the request because of proxying, see:
// https://groups.google.com/forum/#!topic/q-continuum/xr8znxc_K5E/discussion
// TODO(vojta): remove once we don't care about Node 0.8
var pausedRequest = pause(request);
return filesPromise.then(function(files) {
// TODO(vojta): change served to be a map rather then an array
var file = findByPath(files.served, requestedFilePath);
if (file) {
serveFile(file.contentPath || file.path, response, function() {
if (/\?\d+/.test(request.url)) {
// files with timestamps - cache one year, rely on timestamps
common.setHeavyCacheHeaders(response);
} else {
// without timestamps - no cache (debug)
common.setNoCacheHeaders(response);
}
}, file.content);
} else {
next();
}
pausedRequest.resume();
});
};
};
// PUBLIC API
exports.create = createSourceFilesMiddleware;