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server.js
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server.js
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var express = require("express");
var connect = require("connect");
var http = require("http");
var sendfiles = require("./sendfiles").sendfiles;
var ui = require("./ui");
var visitor = require("./visitor");
var tests = new (require("events").EventEmitter);
function makeId () {
return (Math.random() * 0x1000000|0) + "";
}
var cachebuster = makeId();
function serveExpress (port, path, cb) {
var app = express.createServer(
connect.methodOverride(),
connect.bodyDecoder()
);
app.set("views", __dirname + "/views");
app.set("view engine", "jade");
app.get("/", function(req, res){
res.render("index");
});
var testIds = {};
var testResults = {};
var testQueue = {};
app.put("/tests/add", function (req, res) {
if (!req.body.tests.length) return res.send(500);
var urls = [];
var id = makeId();
req.body.tests.forEach(function (url) {
urls.push("/project/" + id + url);
});
ui.debug("/tests/add: registered batch", id);
if (tests.listeners("add").length) {
tests.emit("add", id, urls);
} else {
testQueue[id] = urls;
}
res.send(id);
});
function wait (req, responseCallback) {
var cb = function (id, urls) {
ui.debug("/tests/wait: send", urls);
responseCallback({
tests : urls
});
testIds[id] = 1;
};
tests.on("add", cb);
req.on("end", function () {
tests.removeListener("add", cb);
});
if (testQueue) {
for (
var id in testQueue
) tests.emit("add", id, testQueue[id]);
testQueue = [];
}
}
app.get("/tests/wait", function (req, res) {
res.writeHead(200, {
"Content-Type" : "text/event-stream"
});
wait(req, function (data) {
res.write("data: " + JSON.stringify(data) + "\n\n");
});
});
app.post("/tests/wait", function (req, res) {
wait(req, function (data) {
res.send(data);
req.emit("end"); // will remove add listener
});
});
app.get("/status/:id", function (req, res, params) {
if (params.id in testIds) {
tests.on(params.id, function (results) {
res.send(results);
});
} else {
delete testQueue[params.id];
res.send("Nothing is listening to this batch. At least one browser should be pointed at the Yeti server.", 404);
}
});
app.post("/results", function (req, res) {
var result = JSON.parse(req.body.results);
result.ua = req.body.useragent;
var id = req.body.id;
ui.debug("/results:", id, " has results from: " + result.ua);
if (id in testIds) {
if ( ! (id in testResults) ) {
testResults[id] = [];
}
testResults[id].push(result);
tests.emit(id, result);
} else {
ui.results(result);
}
res.send(200);
});
var projectSend = function (res, file, appendString, nocache) {
sendfiles.call(
res,
[file],
appendString,
null, // callback
{
cache : !nocache
}
);
};
app.get('/project/*', function (req, res, params) {
// TODO: fix test
// that causes us to normalize leading slashes
var nocache = false;
var splat = params.splat.pop().split("/");
if (splat[0] in testIds) {
splat.shift();
nocache = true; // using a unique url
}
if (splat[0] === "") splat.shift(); // stupid leading slashes
splat = splat.join("/");
var file = "/" + splat;
// the requested file must begin with our cwd
if (file.indexOf(path) !== 0) {
// the file is outside of our cwd
// reject the request
ui.log(ui.color.red("[!]")
+ " Rejected " + file
+ ", run in the directory to serve"
+ " or specify --path.");
return res.send(403);
}
if (/^.*\.html?$/.test(req.url)) {
// inject a test reporter into the test page
projectSend(
res, file,
"<script src=\"/dyn/" + cachebuster
+ "/inject.js\"></script><script>"
+ "$yetify({url:\"/results\"});</script>",
nocache
);
} else {
// everything else goes untouched
projectSend(res, file, "", nocache);
}
});
var incSend = function (res, name, nocache) {
sendfiles.call(
res,
[__dirname + "/../inc/" + name],
"", // appendString
null, // callback
{
cache : !nocache
}
);
};
app.get("/inc/*", function (req, res, params) {
incSend(res, params.splat);
});
app.get("/dyn/:cachebuster/*", function (req, res, params) {
incSend(res, params.splat, true);
});
app.get("/favicon.ico", function (req, res) {
incSend(res, "favicon.ico", true);
});
// workaround express and connect bugs
// that strip out the host and callback args!
// n.b.: express' impl of run sets up view reloading
// and the sets env to process.env.ENV, etc.
// we are bypassing all of that by using http directly
http.Server.prototype.listen.call(app, port, null, cb);
return app;
}
function fromConfiguration (config) {
// server not already running
var cb = config.callback;
cb = cb || null;
var app = serveExpress(config.port, config.path, cb);
var urls = visitor.composeURLs(
"http://localhost:" + config.port,
"project" + config.path,
config.files
);
if (urls.length) return visitor.visit(
config.browsers,
urls
);
var host = "localhost";
require("child_process").exec("uname -n", function (err, stdout) {
if (stdout) host = stdout.replace(/\n/, "");
ui.log("Visit " +
ui.color.bold(
"http://" + host + ":" + config.port
) + " to run tests."
);
});
if (config.forceVisit) {
ui.log("Running tests locally with: " + config.browsers.join(", "));
return visitor.visit(
config.browsers,
["http://localhost:" + config.port]
);
}
return app;
}
exports.getCachebuster = function () {
return cachebuster;
};
exports.tests = tests;
exports.fromConfiguration = fromConfiguration;
exports.serve = serveExpress;