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Store images with correct file extension

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This commit is contained in:
Pavel Djundik 2017-12-30 12:46:51 +02:00
parent 068b842561
commit 6675ced196
3 changed files with 44 additions and 1 deletions
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1
package.json
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@ -49,6 +49,7 @@
"irc-framework": "2.10.2",
"ldapjs": "1.0.1",
"lodash": "4.17.4",
"mime-types": "2.1.17",
"moment": "2.20.1",
"package-json": "4.0.1",
"primer-tooltips": "1.5.1",

18
src/plugins/irc-events/link.js
View file

@ -3,6 +3,7 @@
const cheerio = require("cheerio");
const request = require("request");
const url = require("url");
const mime = require("mime-types");
const Helper = require("../../helper");
const cleanIrcMessage = require("../../../client/js/libs/handlebars/ircmessageparser/cleanIrcMessage");
const findLinks = require("../../../client/js/libs/handlebars/ircmessageparser/findLinks");
@ -146,7 +147,22 @@ function handlePreview(client, msg, preview, res) {
return emitPreview(client, msg, preview);
}
storage.store(res.data, res.type.replace("image/", ""), (uri) => {
// Get the correct file extension for the provided content-type
// This is done to prevent user-input being stored in the file name (extension)
const extension = mime.extension(res.type);
if (!extension) {
// For link previews, drop the thumbnail
// For other types, do not display preview at all
if (preview.type !== "link") {
return;
}
preview.thumb = "";
return emitPreview(client, msg, preview);
}
storage.store(res.data, extension, (uri) => {
preview.thumb = uri;
emitPreview(client, msg, preview);

26
test/plugins/storage.js
View file

@ -15,11 +15,18 @@ describe("Image storage", function() {
const correctImageHash = crypto.createHash("sha256").update(fs.readFileSync(testImagePath)).digest("hex");
const correctImageURL = `storage/${correctImageHash.substring(0, 2)}/${correctImageHash.substring(2, 4)}/${correctImageHash.substring(4)}.png`;
const testSvgPath = path.resolve(__dirname, "../../client/img/logo.svg");
const correctSvgHash = crypto.createHash("sha256").update(fs.readFileSync(testSvgPath)).digest("hex");
const correctSvgURL = `storage/${correctSvgHash.substring(0, 2)}/${correctSvgHash.substring(2, 4)}/${correctSvgHash.substring(4)}.svg`;
before(function(done) {
this.app = util.createWebserver();
this.app.get("/real-test-image.png", function(req, res) {
res.sendFile(testImagePath);
});
this.app.get("/logo.svg", function(req, res) {
res.sendFile(testSvgPath);
});
this.connection = this.app.listen(9003, done);
});
@ -67,4 +74,23 @@ describe("Image storage", function() {
done();
});
});
it("should lookup correct extension type", function(done) {
const message = this.irc.createMessage({
text: "http://localhost:9003/svg-preview",
});
this.app.get("/svg-preview", function(req, res) {
res.send("<title>test title</title><meta property='og:image' content='http://localhost:9003/logo.svg'>");
});
link(this.irc, this.network.channels[0], message);
this.irc.once("msg:preview", function(data) {
expect(data.preview.type).to.equal("link");
expect(data.preview.link).to.equal("http://localhost:9003/svg-preview");
expect(data.preview.thumb).to.equal(correctSvgURL);
done();
});
});
});