Expand Tiny url in java

Question

I want to write code in java that displays a url, whether it is a small url or not. if so, then it will identify the URL, malicious or not. if not malicious print URL ...

Please help me with any body ....

Answer 1

You can use HttpClient to determine if the URL is redirected to another location. After that, this is a simple case:

if (!isMalicious(redirectTargetURL)) { System.out.println(redirectTargetURL); } 

The implementation of isMalicious(...) left as an exercise for the reader.

Answer 2

If you trust google to implement isMalicious(...) , then they did it using the Safe Browsing API .

Answer 3

So, the two main things you want:

• Determine if it is tinyurl
• Determine if the URL is malicious.

The answer to part 1 is simple. Just check if the URL of the tinyurl.com domain belongs. It should just be to check the source string of the URL or part of the host returned by the getHost () method of the java.net.URL object.

Part 2 is harder to code from scratch ...

First you need your code to find out where tinyurl is redirected to.

The next bit really depends on how you want to define "malicious". Finding spoofed URLs will require some work (for example, finding the difference between something like www.stackoverflow.com and www.stack0verf10w.com) or comparing the destination URL with a malicious list of URLs (where they are published). Multiple redirects are also checked there, pop-ups and a list of criteria can go on and on.