eu.eubrazilcc.lvl.storage.oauth2.linkedin.LinkedInState.java Source code

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Here is the source code for eu.eubrazilcc.lvl.storage.oauth2.linkedin.LinkedInState.java

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/*
 * Copyright 2014 EUBrazilCC (EU?Brazil Cloud Connect)
 * 
 * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by 
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at:
 * 
 *   http://ec.europa.eu/idabc/eupl
 * 
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and 
 * limitations under the Licence.
 * 
 * This product combines work with different licenses. See the "NOTICE" text
 * file for details on the various modules and licenses.
 * The "NOTICE" text file is part of the distribution. Any derivative works
 * that you distribute must include a readable copy of the "NOTICE" text file.
 */

package eu.eubrazilcc.lvl.storage.oauth2.linkedin;

import static com.google.common.base.MoreObjects.toStringHelper;
import static com.google.common.base.Preconditions.checkArgument;
import static org.apache.commons.lang.StringUtils.isNotBlank;

import java.util.Objects;

/**
 * Provides a challenge that is hard to guess. Used by LinkedIn as part of the access token negotiation to prevent CSRF.
 * @author Erik Torres <ertorser@upv.es>
 * @see <a href="https://developer.linkedin.com/docs/oauth2">LinkedIn: Authenticating with OAuth 2.0</a>
 */
public class LinkedInState {

    private String state;
    private long expiresIn;
    private long issuedAt;
    private String redirectUri;
    private String callback;

    public String getState() {
        return state;
    }

    public void setState(final String state) {
        this.state = state;
    }

    public long getExpiresIn() {
        return expiresIn;
    }

    public void setExpiresIn(final long expiresIn) {
        this.expiresIn = expiresIn;
    }

    public long getIssuedAt() {
        return issuedAt;
    }

    public void setIssuedAt(final long issuedAt) {
        this.issuedAt = issuedAt;
    }

    public String getRedirectUri() {
        return redirectUri;
    }

    public void setRedirectUri(final String redirectUri) {
        this.redirectUri = redirectUri;
    }

    public String getCallback() {
        return callback;
    }

    public void setCallback(final String callback) {
        this.callback = callback;
    }

    @Override
    public boolean equals(final Object obj) {
        if (obj == null || !(obj instanceof LinkedInState)) {
            return false;
        }
        final LinkedInState other = LinkedInState.class.cast(obj);
        return Objects.equals(state, other.state) && Objects.equals(expiresIn, other.expiresIn)
                && Objects.equals(issuedAt, other.issuedAt) && Objects.equals(redirectUri, other.redirectUri)
                && Objects.equals(callback, other.callback);
    }

    @Override
    public int hashCode() {
        return Objects.hash(state, expiresIn, issuedAt, redirectUri, callback);
    }

    @Override
    public String toString() {
        return toStringHelper(this).add("state", state).add("expiresIn", expiresIn).add("issuedAt", issuedAt)
                .add("redirectUri", redirectUri).add("callback", callback).toString();
    }

    /* Fluent API */

    public static Builder builder() {
        return new Builder();
    }

    public static class Builder {

        private final LinkedInState instance = new LinkedInState();

        public Builder state(final String state) {
            checkArgument(isNotBlank(state), "Uninitialized or invalid state");
            instance.setState(state);
            return this;
        }

        public Builder expiresIn(final long expiresIn) {
            instance.setExpiresIn(expiresIn);
            return this;
        }

        public Builder issuedAt(final long issuedAt) {
            checkArgument(issuedAt >= 0l, "Invalid issued at");
            instance.setIssuedAt(issuedAt);
            return this;
        }

        public Builder redirectUri(final String redirectUri) {
            checkArgument(isNotBlank(redirectUri), "Uninitialized or invalid redirect URI");
            instance.setRedirectUri(redirectUri);
            return this;
        }

        public Builder callback(final String callback) {
            checkArgument(isNotBlank(callback), "Uninitialized or invalid callback");
            instance.setCallback(callback);
            return this;
        }

        public LinkedInState build() {
            return instance;
        }

    }

}