oauth.signpost.signature.QueryStringSigningStrategy Maven / Gradle / Ivy
package oauth.signpost.signature;
import java.util.Iterator;
import oauth.signpost.OAuth;
import oauth.signpost.http.HttpParameters;
import oauth.signpost.http.HttpRequest;
/**
* Writes to a URL query string. Note that this currently ONLY works
* when signing a URL directly, not with HTTP request objects. That's
* because most HTTP request implementations do not allow the client to change
* the URL once the request has been instantiated, so there is no way to append
* parameters to it.
*
* @author Matthias Kaeppler
*/
public class QueryStringSigningStrategy implements SigningStrategy {
private static final long serialVersionUID = 1L;
public String writeSignature(String signature, HttpRequest request,
HttpParameters requestParameters) {
// add all (x_)oauth parameters
HttpParameters oauthParams = requestParameters.getOAuthParameters();
oauthParams.put(OAuth.OAUTH_SIGNATURE, signature, true);
Iterator iter = oauthParams.keySet().iterator();
// add the first query parameter (we always have at least the signature)
String firstKey = iter.next();
StringBuilder sb = new StringBuilder(OAuth.addQueryString(request.getRequestUrl(),
oauthParams.getAsQueryString(firstKey)));
while (iter.hasNext()) {
sb.append("&");
String key = iter.next();
sb.append(oauthParams.getAsQueryString(key));
}
String signedUrl = sb.toString();
request.setRequestUrl(signedUrl);
return signedUrl;
}
}