protected String getRedirectUrl()

in src/main/java/org/apache/sling/jackrabbit/usermanager/impl/post/AbstractPostServlet.java [299:343]
30 lines of code
9 McCabe index (conditional complexity)

    protected String getRedirectUrl(HttpServletRequest request, PostResponse ctx) throws IOException {
        // redirect param has priority (but see below, magic star)
        String result = request.getParameter(SlingPostConstants.RP_REDIRECT_TO);
        if (result != null) {
            try {
                URI redirectUri = new URI(result);
                if (redirectUri.getAuthority() != null) {
                    // if it has a host information
                    throw new IOException("The redirect target included host information. This is not allowed for security reasons!");
                }
            } catch (URISyntaxException e) {
                throw new IOException("The redirect target was not a valid uri");
            }

            if (ctx.getPath() != null) {
                // redirect to created/modified Resource
                final int star = result.indexOf('*');
                if (star >= 0) {
                    StringBuilder buf = new StringBuilder();

                    // anything before the star
                    if (star > 0) {
                        buf.append(result.substring(0, star));
                    }

                    // append the name of the manipulated node
                    buf.append(ResourceUtil.getName(ctx.getPath()));

                    // anything after the star
                    if (star < result.length() - 1) {
                        buf.append(result.substring(star + 1));
                    }

                    // use the created path as the redirect result
                    result = buf.toString();

                } else if (result.endsWith(SlingPostConstants.DEFAULT_CREATE_SUFFIX)) {
                    // if the redirect has a trailing slash, append modified node
                    // name
                    result = result.concat(ResourceUtil.getName(ctx.getPath()));
                }
            }
        }
        return result;
    }