unused code
something went wrong during reorga of project structure
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package de.devloop.mavor;
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import java.io.IOException;
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import jakarta.servlet.ServletException;
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import jakarta.servlet.http.HttpServlet;
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import jakarta.servlet.http.HttpServletRequest;
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import jakarta.servlet.http.HttpServletResponse;
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public class AuthenticatedServlet extends HttpServlet {
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protected Session session;
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@Override
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protected final void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
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session = new Session(req.getSession(true));
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if (!session.isAuthenticated()) {
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resp.sendRedirect("/mavor/authenticate");
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} else {
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doAuthenticatedGet(req, resp);
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}
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}
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protected void doAuthenticatedGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
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// nooooothing
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}
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}
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package de.devloop.mavor;
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import jakarta.servlet.http.HttpSession;
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public class Session {
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private HttpSession session;
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private static final String ATTRIBUTE_USERNAME = "username";
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private static final String ATTRIBUTE_OAUTH_STATE = "oauth.state";
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private static final String ATTRIBUTE_OAUTH_TOKEN = "oauth.token";
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public Session(HttpSession session) {
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this.session = session;
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}
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private String getSafeString(String parameter) {
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Object value = session.getAttribute(parameter);
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if (value != null) {
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return value.toString();
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} else {
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return null;
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}
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}
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public Boolean isAuthenticated() {
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return getUsername() != null;
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}
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public String getUsername() {
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return getSafeString(ATTRIBUTE_USERNAME);
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}
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public void setUsername(String username) {
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session.setAttribute(ATTRIBUTE_USERNAME, username);
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}
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public void setOAuthState(String state) {
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session.setAttribute(ATTRIBUTE_OAUTH_STATE, state);
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}
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public String getOAuthState() {
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return getSafeString(ATTRIBUTE_OAUTH_STATE);
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}
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public void clearOAuthState() {
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session.removeAttribute(ATTRIBUTE_OAUTH_STATE);
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}
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public void setOAuthToken(String token) {
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session.setAttribute(ATTRIBUTE_OAUTH_TOKEN, token);
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}
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public String getOAuthToken() {
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return getSafeString(ATTRIBUTE_OAUTH_TOKEN);
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}
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}
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package de.devloop.mavor.servlet;
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import java.io.IOException;
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import de.devloop.mavor.AuthenticatedServlet;
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import jakarta.servlet.RequestDispatcher;
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import jakarta.servlet.ServletException;
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import jakarta.servlet.annotation.WebServlet;
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import jakarta.servlet.http.HttpServletRequest;
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import jakarta.servlet.http.HttpServletResponse;
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@WebServlet("")
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public class Main extends AuthenticatedServlet {
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@Override
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protected void doAuthenticatedGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
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req.setAttribute("username", session.getUsername());
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RequestDispatcher view = req.getRequestDispatcher("/main.jsp");
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view.forward(req, resp);
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}
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}
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package de.devloop.openid;
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public class AuthenticationUrl {
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private String url;
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private String state;
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public AuthenticationUrl(String url, String state) {
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this.url = url;
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this.state = state;
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}
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public String getUrl() {
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return url;
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}
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public String getState() {
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return state;
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}
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}
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@ -1,102 +0,0 @@
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package de.devloop.openid;
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import java.io.IOException;
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import java.net.URI;
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import java.net.URISyntaxException;
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import java.net.URLEncoder;
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import java.net.http.HttpClient;
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import java.net.http.HttpRequest;
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import java.net.http.HttpRequest.BodyPublishers;
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import java.net.http.HttpResponse;
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import java.net.http.HttpResponse.BodyHandlers;
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import java.nio.charset.StandardCharsets;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.UUID;
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import com.google.gson.Gson;
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public class OpenID {
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private static final String CLIENT_ID = "vP9xF2s1yy2n6sR05jV6dguyMeOvIxCg1GarV71O";
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private static final String CLIENT_SECRET = "PrwGSMcucxYPkOdrb23jddWqyn31vphrxCUu9MGdLTCUnbk0OJI5oWCvO0khVhcnJNDbJaKWxNMxaC4bJ92jy8bDjtG6oaWG37qhuLRPMh5DKluZxsCMmCvQ8f9ZQckZ";
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private static final String REDIRECT_URL = "http://localhost:8080/mavor/authenticate";
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private static final String OAUTH_AUTH_URL = "https://auth.devloop.de/application/o/authorize/";
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private static final String OAUTH_TOKEN_URL = "https://auth.devloop.de/application/o/token/";
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private static final String OAUTH_USERINFO_URL = "https://auth.devloop.de/application/o/userinfo/";
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public AuthenticationUrl getAuthenticationUrl() {
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String state = UUID.randomUUID().toString();
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String url = String.format("%s?response_type=code&client_id=%s&redirect_uri=%s&state=%s&scope=openid email", OAUTH_AUTH_URL, CLIENT_ID, REDIRECT_URL, state);
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return new AuthenticationUrl(url, state);
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}
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private URI getUriObject(String url) throws OpenIdRequestException {
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try {
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return new URI(url);
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} catch (URISyntaxException e) {
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throw new OpenIdRequestException(String.format("Invalid URL: '%s'", url), e);
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}
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}
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public Token requestToken(String code) throws OpenIdRequestException {
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URI tokenUrl = getUriObject(OAUTH_TOKEN_URL);
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HashMap<String, String> tokenParameter = new HashMap<>();
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tokenParameter.put("grant_type", "authorization_code");
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tokenParameter.put("client_id", CLIENT_ID);
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tokenParameter.put("client_secret", CLIENT_SECRET);
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tokenParameter.put("code", code);
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tokenParameter.put("redirect_uri", REDIRECT_URL);
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HttpRequest tokenRequest = HttpRequest.newBuilder()
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.uri(tokenUrl)
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.header("Content-Type", "application/x-www-form-urlencoded")
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.header("Accept", "application/json")
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.POST(BodyPublishers.ofString(getFormDataAsString(tokenParameter)))
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.build();
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HttpClient tokenClient = HttpClient.newHttpClient();
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HttpResponse<String> tokenResponse;
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try {
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tokenResponse = tokenClient.send(tokenRequest, BodyHandlers.ofString());
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} catch (IOException | InterruptedException e) {
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throw new OpenIdRequestException("Requesting access token failed", e);
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}
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Gson gson = new Gson();
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return gson.fromJson(tokenResponse.body(), Token.class);
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}
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public UserInfo requestUserInfo(Token token) throws OpenIdRequestException {
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URI userInfoUrl = getUriObject(OAUTH_USERINFO_URL);
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HttpRequest userInfoRequest = HttpRequest.newBuilder()
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.uri(userInfoUrl)
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.header("Accept", "application/json")
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.header("Authorization", "Bearer " + token.getAccessToken())
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.GET()
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.build();
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HttpClient userInfoClient = HttpClient.newHttpClient();
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HttpResponse<String> userInfoResponse;
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try {
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userInfoResponse = userInfoClient.send(userInfoRequest, BodyHandlers.ofString());
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} catch (IOException | InterruptedException e) {
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throw new OpenIdRequestException("Requesting user info failed", e);
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}
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Gson gson = new Gson();
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return gson.fromJson(userInfoResponse.body(), UserInfo.class);
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}
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private String getFormDataAsString(Map<String, String> formData) {
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StringBuilder formBodyBuilder = new StringBuilder();
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for (Map.Entry<String, String> singleEntry : formData.entrySet()) {
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if (formBodyBuilder.length() > 0) {
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formBodyBuilder.append("&");
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}
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formBodyBuilder.append(URLEncoder.encode(singleEntry.getKey(), StandardCharsets.UTF_8));
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formBodyBuilder.append("=");
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formBodyBuilder.append(URLEncoder.encode(singleEntry.getValue(), StandardCharsets.UTF_8));
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}
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return formBodyBuilder.toString();
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}
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}
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package de.devloop.openid;
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public class OpenIdRequestException extends Exception {
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public OpenIdRequestException(String message, Throwable cause) {
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super(message, cause);
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}
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}
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package de.devloop.openid;
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import com.google.gson.annotations.SerializedName;
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public class Token {
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@SerializedName("access_token")
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private String accessToken;
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public String getAccessToken() {
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return accessToken;
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}
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public void setAccessToken(String accessToken) {
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this.accessToken = accessToken;
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}
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}
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package de.devloop.openid;
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public class UserInfo {
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private String email;
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public String getEmail() {
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return email;
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}
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public void setEmail(String email) {
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this.email = email;
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}
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}
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