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Merge pull request #315 from vohof/feat/conserve 

impose size restrictions when fetching link
This commit is contained in:
Mattias Erming 2014-12-23 12:56:28 +01:00
parent feb4f4ee6b 36d861fd79
commit ae1a247aeb
2 changed files with 37 additions and 9 deletions
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5
package.json
View File

@ -28,14 +28,15 @@
"bcrypt-nodejs": "0.0.3",
"cheerio": "^0.17.0",
"commander": "^2.3.0",
"event-stream": "^3.1.7",
"express": "^4.9.5",
"lodash": "~2.4.1",
"mkdirp": "^0.5.0",
"moment": "~2.7.0",
"read": "^1.0.5",
"request": "^2.51.0",
"slate-irc": "~0.7.3",
"socket.io": "~1.0.6",
"superagent": "^0.18.2"
"socket.io": "~1.0.6"
},
"devDependencies": {
"grunt": "~0.4.5",

41
src/plugins/irc-events/link.js
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@ -1,8 +1,9 @@
var _ = require("lodash");
var cheerio = require("cheerio");
var Msg = require("../../models/msg");
var request = require("superagent");
var request = require("request");
var Helper = require("../../helper");
var es = require('event-stream');
module.exports = function(irc, network) {
var client = this;
@ -60,7 +61,7 @@ function parse(msg, url, res, client) {
switch (res.type) {
case "text/html":
var $ = cheerio.load(res.res.text);
var $ = cheerio.load(res.text);
toggle.type = "link";
toggle.head = $("title").text();
toggle.body =
@ -89,9 +90,35 @@ function parse(msg, url, res, client) {
function fetch(url, cb) {
var req = request.get(url);
req.end(function(e, res) {
if (res) {
cb(res);
}
});
var length = 0;
var limit = 1024 * 10;
req
.on('response', function(res) {
if (!(/(text\/html|application\/json)/.test(res.headers['content-type']))) {
res.req.abort();
}
})
.on('error', function() {})
.pipe(es.map(function(data, next) {
length += data.length;
if (length > limit) {
req.response.req.abort();
}
next(null, data);
}))
.pipe(es.wait(function(err, data) {
if (err) return;
var body;
try {
body = JSON.parse(data);
} catch(e) {
body = {};
}
data = {
text: data,
body: body,
type: req.response.headers['content-type'].split(/ *; */).shift()
};
cb(data);
}));
}