crafatar/routes/avatars.js
jomo 332330f68e replacing all single quotes with double quotes
Until now it was a big mess with some strings using single quotes and some others double quotes
We were using way more double quotes, so I chose to use them globally
2014-11-30 00:07:05 +01:00

100 lines
2.9 KiB
JavaScript

var router = require("express").Router();
var networking = require("../modules/networking");
var logging = require("../modules/logging");
var helpers = require("../modules/helpers");
var config = require("../modules/config");
var skins = require("../modules/skins");
var human_status = {
0: "none",
1: "cached",
2: "downloaded",
3: "checked",
"-1": "error"
};
/* GET avatar request. */
router.get("/:uuid.:ext?", function(req, res) {
var uuid = req.params.uuid;
var size = req.query.size || config.default_size;
var def = req.query.default;
var helm = req.query.hasOwnProperty("helm");
var start = new Date();
var etag = null;
// Prevent app from crashing/freezing
if (size < config.min_size || size > config.max_size) {
// "Unprocessable Entity", valid request, but semantically erroneous:
// https://tools.ietf.org/html/rfc4918#page-78
res.status(422).send("422 Invalid size");
return;
} else if (!helpers.uuid_valid(uuid)) {
res.status(422).send("422 Invalid UUID");
return;
}
// strip dashes
uuid = uuid.replace(/-/g, "");
try {
helpers.get_avatar(uuid, helm, size, function(err, status, image, hash) {
logging.log(uuid + " - " + human_status[status]);
if (err) {
logging.error(err);
}
etag = hash && hash.substr(0, 32) || "none";
var matches = req.get("If-None-Match") == "'" + etag + "'";
if (image) {
var http_status = 200;
if (matches) {
http_status = 304;
} else if (err) {
http_status = 503;
}
logging.log("matches: " + matches);
logging.log("Etag: " + req.get("If-None-Match"));
logging.log("status: " + http_status);
sendimage(http_status, status, image);
} else {
handle_default(404, status);
}
});
} catch(e) {
logging.error("Error!");
logging.error(e);
handle_default(500, status);
}
function handle_default(http_status, img_status) {
if (def && def != "steve" && def != "alex") {
res.writeHead(301, {
"Cache-Control": "max-age=" + config.browser_cache_time + ", public",
"Response-Time": new Date() - start,
"X-Storage-Type": human_status[img_status],
"Access-Control-Allow-Origin": "*",
"Location": def
});
res.end();
} else {
def = def || skins.default_skin(uuid);
skins.resize_img("public/images/" + def + ".png", size, function(err, image) {
sendimage(http_status, img_status, image);
});
}
}
function sendimage(http_status, img_status, image) {
res.writeHead(http_status, {
"Content-Type": "image/png",
"Cache-Control": "max-age=" + config.browser_cache_time + ", public",
"Response-Time": new Date() - start,
"X-Storage-Type": human_status[img_status],
"Access-Control-Allow-Origin": "*",
"Etag": '"' + etag + '"'
});
res.end(http_status == 304 ? null : image);
}
});
module.exports = router;