rfc5849

implementation of The OAuth 1.0 Protocol.

Components

OAuthBaseString

For building a Signature Base String.

final OAuthBaseString baseString = new OAuthBaseString();

You can use following methods to set values.

baseString.httpMethod(httpMethod);
baseString.baseUri(baseUri);
baseString.queryParameter(key, value);
baseString.protocolParameter(key, value); // key must start with 'oauth_'
baseString.entityParameter(key, value);

OAuthSignature

For generating a Signature.

class	method	platform
OAuthSignatureHmacSha1Bc	HMAC-SHA1	BC
OAuthSignatureHmacSha1Jca	HMAC-SHA1	JCA
OAuthSignatureRsaSha1Bc	RSA-SHA1	BC
OAuthSignatureRsaSha1Jca	RSA-SHA1	JCA
OAuthSignaturePlaintext	PLAINTEXT

HMAC-SHA1

There are two implementations. One is for Java Cryptograph Architexture and the other is for Legion of the Bouncy Castle.

final OAuthSignatureHmacSha1 signature = new OAuthSignatureHmacSha1Bc(); // BC
final OAuthSignatureHmacSha1 signature = new OAuthSignatureHmacSha1Jca(); // JCA

You can use following methods to set values.

signature.consumerSecret(consumerSecret);
signature.tokenSecret(tokenSecret);
signature.baseString(baseString); // OAuthBaseString

RSA-SHA1

There are, again, two implementations. One is for Java Cryptograph Architexture and the other is for Legion of the Bouncy Castle.

final OAuthSignatureRsaSha1 signature = new OAuthSignatureRsaSha1Bc(); // BC
final OAuthSignatureRsaSha1 signature = new OAuthSignatureRsaSha1Jca(); // JCA

You can use following methods to set values.

signature.initParam(PrivateKey privateKey); // JCA
signature.initParam(CipherParameters cipherParameters); // BC

PLAINTEXT

new OAuthSignaturePlaintext();

OAuthProtocolParameters

final OAuthProtocolParameters protocolParameters = new OAuthProtocolParameters();
protocolParameters.realm(realm);
protocolParameters.signature(signature); // OAuthSignature

Three kinds of output defined in 3.5. Parameter Transmission are supported.

final String header = protocolParameters.authorizationHeader(); // Authorization Header
final String body = protocolParameters.formEncodedBody(); // Form-Encoded Body
final String query = protocolParameters.requestUriQuery(); // Request URI Query

Examples

final OAuthRequest protocolParameters = new OAuthRequest()
    .realm("Example")
    .signature(
        new OAuthSignatureHmacSha1Bc()
            .consumerSecret("j49sk3j29djd")
            .tokenSecret("dh893hdasih9")
            .baseString(
                new OAuthBaseString()
                    .httpMethod("POST")
                    .baseUri("http://example.com/request")
                    .queryParameter("b5", "=%3D")
                    .queryParameter("a3", "a")
                    .queryParameter("c@", "")
                    .queryParameter("a2", "r b")
                    .oauthConsumerKey("9djdj82h48djs9d2")
                    .oauthNonce("7d8f3e4a")
                    .oauthTimestamp("137131201")
                    .oauthToken("kkk9d7dh3k39sjv7")
                    .entityParameter("c2", "")
                    .entityParameter("a3", "2 q")
        )
    );

final String authorizationHeader = protocolParameters.authorizationHeader();