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delete hash from redis if file does not exist

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This commit is contained in:
jomo 2015-01-04 05:01:13 +01:00
parent a9a0032b1f
commit 3a0a23e5b5
3 changed files with 11 additions and 1 deletions
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5
modules/cache.js
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@ -107,6 +107,11 @@ exp.save_hash = function(uuid, hash) {
redis.hmset(uuid, "h", hash, "t", time);
};
exp.remove_hash = function(uuid) {
logging.log(uuid + " cache: deleting hash");
redis.del(uuid.toLowerCase(), "h", "t");
};
// get a details object for +uuid+
// {hash: "0123456789abcdef", time: 1414881524512}
// null when uuid unkown

2
modules/helpers.js
View File

@ -41,7 +41,7 @@ function store_images(uuid, details, callback) {
cache.update_timestamp(uuid, hash);
callback(null, hash);
} else {
if (!exists) {
if (details && details.hash && !exists) {
logging.warn(uuid + " File was deleted! Downloading again.");
} else {
// hash has changed

5
routes/avatars.js
View File

@ -3,6 +3,7 @@ var logging = require("../modules/logging");
var helpers = require("../modules/helpers");
var config = require("../modules/config");
var skins = require("../modules/skins");
var cache = require("../modules/cache");
var human_status = {
0: "none",
@ -48,6 +49,10 @@ module.exports = function(req, res) {
logging.log(uuid + " - " + human_status[status]);
if (err) {
logging.error(uuid + " " + err);
if (err.code == "ENOENT") {
logging.warn("Deleting " + uuid + " from cache!");
cache.remove_hash(uuid);
}
}
etag = image && hash && hash.substr(0, 32) || "none";
var matches = req.headers["if-none-match"] == '"' + etag + '"';