I have a node js project which requires to reduce the size of images before sending to the client. I am using request library and sharp library.
The source of the images is a signed aws s3 bucket url - e.g
{http://my_intentionally_hidden_url/api/getImage?image=https://my_intentionally_hidden_bucket_name_and_path.s3.eu-central-1.amazonaws.com/name_it/q_i_9.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=My_intentionally_hidden_credentials%2F20190813%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20190813T221026Z&X-Amz-Expires=120&X-Amz-Signature=1c81c2b69d82e116d8ea398604b44dfb3ca2bb7d9b961d639766630fe4b4eb95&X-Amz-SignedHeaders=host&width=1440&height=120}
I am using the following block of code to get the aboove url from s3, resize it and then send the resized image back to the client
module.exports.getImage = (req,res) => {
const url = req.query.image; //the signed url
var width = parseInt(req.query.width);
var height = parseInt(req.query.height);
if(width > 300){
width = 300;
}
if(height > 300){
height = 300;
}
request({url, encoding: null }, (error, response, body ) => {
console.log({body});
console.log({error});
if(!error) {
sharp(body)
.resize (width,height)
.webp({ lossless: false })
.toBuffer()
.then(data => {
console.log("we we we")
return res.send(data);
console.log({data});
})
.catch(err => {
console.log({err})
})
}
else{
console.log({error})
}
})
}
In the above call,
The url was signed a couple of minutes ago to make it public, and the result of the console.log({body}) is binary data, which is what should be returned,
The first console.log({error}) is null.
The problem is where the console.log({err}) is and it shows -
{ err: Error: Input buffer contains unsupported image format }
I have another bucket on s3 and if i take the url of a public image (url that is not signed) on that bucket and do -
....
const url = "https://My_hidden_bucket_name.s3-eu-west-1.amazonaws.com/o_d_3.jpg"
var width = parseInt(req.query.width);
var height = parseInt(req.query.height);
....
I am sure that the signed urls's are working because the signed url's have been tested when they are called from the client and the image shows.
I have tried using sharp without the .webp() and testing it out and i get the same result, i have used it with the other formats that sharp offers - jpeg, png and the same error message comes up. It appears request is returning the right response.
