I am writing something like an image proxy where I receive URLs from my site front-end, and I download images , re-size them, and return smaller images for the front end and client to download from the "proxy". This means I need to take care of all-sorts of url patterns, this is why I chose to decode the given url and than encode it using URIUtils.decode:
private String fixUrl(String fromUrl) throws URIException {
fromUrl = URIUtil.decode(fromUrl);
fromUrl = URIUtil.encodeQuery(fromUrl);
return fromUrl;
}
This should help me take care of urls that are already encoded. My problem is that some of the urls are double encoded, and from what I saw, URIUtils.decode, performs recursive decode and this means that in cases of double encoded urls I will get a bad url that does not work.
Is there a simple way to decode only once?