c9-core/plugins/c9.static/cdn.js

156 wiersze
5.2 KiB
JavaScript
Czysty Zwykły widok Historia

2015-02-10 19:41:24 +00:00
"use strict";
main.consumes = [
"connect",
"connect.cors",
"cdn.build"
];
main.provides = [];
module.exports = main;
function main(options, imports, register) {
var connect = imports.connect;
var build = imports["cdn.build"];
var fs = require("fs");
var path = require("path");
var send = require("send");
var mkdirp = require("mkdirp");
var atomic = require("c9/atomic");
var error = require("http-error");
var frontdoor = require("frontdoor");
var cacheFiles = options.cacheFiles;
var api = frontdoor();
connect.use(api);
var section = api.section("static");
//section.use(foreverCache());
section.use(imports["connect.cors"].cors("*"));
section.use(connect.getModule().compress());
section.get("/:hash/config/:name", [prepare, function(req, res, next) {
var name = req.params.name.replace(/\.js$/, "");
var file = path.join(build.cacheDir, req.params.hash, "config", name + ".js");
sendCached(file, req, res, next, function(callback) {
build.buildConfig(name, req.pathConfig, function(err, result) {
callback(err, result && result.code || "");
});
});
}]);
section.get("/:hash/skin/:name/:color", [prepare, function(req, res, next) {
var color = req.params.color.replace(/\.css$/, "");
var file = path.join(build.cacheDir, req.params.hash, "skin", req.params.name, color + ".css");
sendCached(file, req, res, next, function(callback) {
build.buildSkin(req.params.name, color, req.pathConfig, function(err, result) {
callback(err, result && result.code || "");
});
});
}]);
section.get("/:hash/modules/:module*", [prepare, function(req, res, next) {
var module = req.params.module.replace(/^\//, "").replace(/\.js$/, "");
var file = path.join(build.cacheDir, req.params.hash, "modules", module + ".js");
sendCached(file, req, res, next, function(callback) {
build.buildModule(module, req.pathConfig, function(err, result) {
callback(err, result && result.code || "");
});
});
}]);
section.get("/:hash/worker/:module*", [prepare, function(req, res, next) {
var module = req.params.module.replace(/^\//, "").replace(/\.js$/, "");
var file = path.join(build.cacheDir, req.params.hash, "worker", module + ".js");
sendCached(file, req, res, next, function(callback) {
build.buildWorker(module, req.pathConfig, function(err, result) {
callback(err, result && result.code || "");
});
});
}]);
section.get("/:hash/static/:path*", [prepare, function(req, res, next) {
send(req, req.params.path.replace(/^\//, ""))
.root(path.join(build.cacheDir, req.params.hash, "static"))
.on('error', onSendError(next))
.pipe(res);
}]);
register();
function sendCached(filename, req, res, next, loader) {
console.log("cache", filename);
fs.exists(filename, function(exists) {
if (exists && cacheFiles) {
console.log("cache hit", filename);
var transfer = send(req, filename);
if (path.sep === "/")
transfer.root("/");
transfer
.on("error", onSendError(next))
.pipe(res);
return;
}
loader(function(err, code) {
if (err) return next(err);
var type = "text/javascript";
if (filename.match(/\.css$/))
type = "text/css";
res.setHeader("Content-Type", type);
res.statusCode = 200;
res.end(code);
if (!cacheFiles) return;
mkdirp(path.dirname(filename), function(err) {
if (err)
console.error("Error caching file", filename, err);
atomic.writeFile(filename, code, "utf8", function(err) {
if (err)
console.error("Caching file", filename, "failed", err);
else
console.log("File cached at", filename);
});
});
});
});
}
function onSendError(next) {
return function(err) {
if (err.status == 404)
next(new error.NotFound());
else
next(err);
};
}
function prepare(req, res, next) {
var hash = req.params.hash;
if (!hash.match(/^[a-z0-9]+$/))
return next(new error.NotFound());
build.getPathConfig(hash, function(err, pathConfig) {
if (err) return next(err);
req.pathConfig = pathConfig;
next();
});
}
function foreverCache() {
return function(req, res, next) {
res.setHeader("Cache-Control", "public, max-age=31556926");
next();
};
}
}