Get username and password from http git URL - regex

Question

I have my own custom git servlet implemented using GitServlet.
I have my own authentication.
To clone or push, pull i want to authenticate against my authentication plugin.
To do this i need to read user/password from url given by user.
Like,
git clone http://sohanb:welcome#localhost:8080/git.ctr-0.0.1-SNAPSHOT/portal/.git
How can i get the usernmae i.e sohanb and password i.e welcome.
Updated question:
My git init code,
public void init(ServletConfig config) throws ServletException {
username = config.getInitParameter("username");
password=config.getInitParameter("password");
idpUrl=config.getInitParameter("idpUrl");
System.out.println("IDP URL is =======>> " + idpUrl);
setRepositoryResolver(new RepositoryResolver<HttpServletRequest>() {
public Repository open(HttpServletRequest req, String name) throws RepositoryNotFoundException,
ServiceNotEnabledException {
try {
System.out.println("name =============>> " +name);
System.out.println("parmrs if any ==========>> " + req.getParameterMap());
System.out.println("URL ===============>>" + req.getRequestURL().toString());
URL url = new URL(req.getRequestURL().toString());
System.out.println("Trying to get uswer info if any ====>> " +url.getUserInfo());
File gitParentFolder = new File("D:\\sigma-admin\\git.ctr\\git");
File gitRepoFolder = new File(gitParentFolder, name);
System.out.println("gitRepoFolder.exists() =======>>" + gitRepoFolder.exists());
if (gitRepoFolder.exists()) {
if (!gitRepoFolder.getAbsolutePath().endsWith(".git")) {
gitRepoFolder = new File(gitRepoFolder, ".git");
}
Repository db = Git.open(gitRepoFolder).getRepository();
db.incrementOpen();
return db;
} else {
throw new RepositoryNotFoundException("Unknown repository was requested by client " + name);
}
} catch (IOException e) {
throw new RepositoryNotFoundException(name, e);
}
}
});
}
My git war running under jettry server
http://localhost:8080/git.ctr-0.0.1-SNAPSHOT/
Now when i do git clone http://sohanb:welcome#localhost:8080/git.ctr-0.0.1-SNAPSHOT/portal/.git
The url i can see in logs/console,
http://localhost:8080/git.ctr-0.0.1-SNAPSHOT/portal/.git/
I don't know why use:pass missing from req url. Or it is not valid what i am trying to achieve.
Other suggestion to do this are most welcomed.
Please suggest.

Answer 1

A regex would be:
https?:\/\/(?<user>[^:]+):(?<password>[^#]+)
# look for http or https followed by ://
# capture everything up (but not including) a colon and capture it in a group called user
# match a colon
# capture everything up (but not including) an # and capture it in a group called password
See a demo here. It however somewhat depends on what you really want (working with the information in PHP, Python, the bash, etc.).

Answer 2

Since it is http:, you can use the java.net.URL:
URL url = new URL("http://sohanb:welcome#localhost:8080/git.ctr-0.0.1-SNAPSHOT/portal/.git");
String userInfo = url.getUserInfo(); // userInfo = "sohanb:welcome"
Check for null and then you can get what you want really easy:
String[] userInfoArray = userInfo.split(":");
String username = userInfoArray[0]; // sohanb
String password = userInfoArray[1]; // welcome