initial Facebook login

2 files changed, 350 insertions, 0 deletions

diff --git a/juick-server/src/main/java/com/juick/server/Utils.java b/juick-server/src/main/java/com/juick/server/Utils.java
new file mode 100644
index 00000000..853b79fc
--- /dev/null
+++ b/juick-server/src/main/java/com/juick/server/Utils.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2008-2017, Juick
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.juick.server;
+
+import javax.servlet.http.HttpServletRequest;
+import java.util.Optional;
+
+/**
+ *
+ * @author Ugnich Anton
+ */
+public class Utils {
+
+
+    public static String encodeSphinx(String str) {
+        return str.replaceAll("@", "\\\\@")
+                .replaceAll("\\'", "\\\\'");
+    }
+
+    /**
+     * Returns the viewName to return for coming back to the sender url
+     *
+     * @param request Instance of {@link HttpServletRequest} or use an injected instance
+     * @return Optional with the view name. Recomended to use an alternativa url with
+     * {@link Optional#orElse(java.lang.Object)}
+     */
+    public static Optional<String> getPreviousPageByRequest(HttpServletRequest request)
+    {
+        return Optional.ofNullable(request.getHeader("Referer")).map(requestUrl -> "redirect:" + requestUrl);
+    }
+}
diff --git a/juick-server/src/main/java/com/juick/server/api/SocialLogin.java b/juick-server/src/main/java/com/juick/server/api/SocialLogin.java
new file mode 100644
index 00000000..9ca0c6be
--- /dev/null
+++ b/juick-server/src/main/java/com/juick/server/api/SocialLogin.java
@@ -0,0 +1,305 @@
+/*
+ * Copyright (C) 2008-2017, Juick
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.juick.server.api;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.github.scribejava.apis.FacebookApi;
+import com.github.scribejava.core.builder.ServiceBuilder;
+import com.github.scribejava.core.model.OAuth2AccessToken;
+import com.github.scribejava.core.model.OAuthRequest;
+import com.github.scribejava.core.model.Verb;
+import com.github.scribejava.core.oauth.OAuth20Service;
+import com.juick.facebook.User;
+import com.juick.server.util.HttpBadRequestException;
+import com.juick.service.CrosspostService;
+import com.juick.service.EmailService;
+import com.juick.service.TelegramService;
+import com.juick.service.UserService;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.math.NumberUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.util.UriComponentsBuilder;
+
+import javax.annotation.PostConstruct;
+import javax.inject.Inject;
+import java.io.IOException;
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+
+/**
+ *
+ * @author Ugnich Anton
+ */
+@Controller
+public class SocialLogin {
+
+    private static final Logger logger = LoggerFactory.getLogger(SocialLogin.class);
+
+    @Value("${facebook_appid:appid}")
+    private String FACEBOOK_APPID;
+    @Value("${facebook_secret:secret}")
+    private String FACEBOOK_SECRET;
+    private static final String FACEBOOK_REDIRECT = "https://juick.com/_fblogin";
+    private static final String VK_REDIRECT = "http://juick.com/_vklogin";
+    private static final String TWITTER_VERIFY_URL = "https://api.twitter.com/1.1/account/verify_credentials.json";
+    @Inject
+    private ObjectMapper jsonMapper;
+    private ServiceBuilder facebookBuilder, twitterBuilder, vkBuilder;
+
+    @Value("${twitter_consumer_key:appid}")
+    private String twitterConsumerKey;
+    @Value("${twitter_consumer_secret:secret}")
+    private String twitterConsumerSecret;
+    @Value("${vk_appid:appid}")
+    private String VK_APPID;
+    @Value("${vk_secret:secret}")
+    private String VK_SECRET;
+    @Value("${telegram_token:secret}")
+    private String telegramToken;
+
+    @Inject
+    private CrosspostService crosspostService;
+    @Inject
+    private UserService userService;
+    @Inject
+    private EmailService emailService;
+    @Inject
+    private TelegramService telegramService;
+
+    @PostConstruct
+    public void init() {
+        facebookBuilder = new ServiceBuilder(FACEBOOK_APPID);
+        twitterBuilder = new ServiceBuilder(twitterConsumerKey);
+        vkBuilder = new ServiceBuilder(VK_APPID);
+    }
+
+    @GetMapping("/_fblogin")
+    protected String doFacebookLogin(@RequestParam(required = false) String code,
+                         @RequestParam(required = false) String state) throws IOException, ExecutionException, InterruptedException {
+        if (StringUtils.isBlank(code)) {
+            String fbstate = UUID.randomUUID().toString();
+            crosspostService.addFacebookState(fbstate);
+            OAuth20Service facebookAuthService = facebookBuilder
+                    .apiSecret(FACEBOOK_SECRET)
+                    .callback(FACEBOOK_REDIRECT)
+                    .scope("email")
+                    .state(fbstate)
+                    .build(FacebookApi.instance());
+            return "redirect:" + facebookAuthService.getAuthorizationUrl();
+        }
+
+        if (!crosspostService.verifyFacebookState(state)) {
+            logger.error("state is missing");
+            throw new HttpBadRequestException();
+        }
+        OAuth20Service facebookService = facebookBuilder
+                .apiKey(FACEBOOK_APPID)
+                .apiSecret(FACEBOOK_SECRET)
+                .callback(FACEBOOK_REDIRECT)
+                .scope("email")
+                .state(state)
+                .build(FacebookApi.instance());
+        OAuth2AccessToken token = facebookService.getAccessToken(code);
+        final OAuthRequest meRequest = new OAuthRequest(Verb.GET, "https://graph.facebook.com/v2.10/me?fields=id,name,link,verified,email");
+        facebookService.signRequest(token, meRequest);
+        String graph = facebookService.execute(meRequest).getBody();
+        if (StringUtils.isBlank(graph)) {
+            logger.error("FACEBOOK GRAPH ERROR");
+            throw new HttpBadRequestException();
+        }
+        User fb = jsonMapper.readValue(graph, User.class);
+        long fbID = NumberUtils.toLong(fb.getId(), 0);
+        if (fbID == 0 || StringUtils.isBlank(fb.getName()) || StringUtils.isBlank(fb.getLink())) {
+            logger.error("Missing required fields, id: {}, name: {}, link: {}", fbID, fb.getName(), fb.getLink());
+            throw new HttpBadRequestException();
+        }
+
+        int uid = crosspostService.getUIDbyFBID(fbID);
+        if (uid > 0) {
+            if (!crosspostService.updateFacebookUser(fbID, token.getAccessToken(), fb.getName(), fb.getLink())) {
+                logger.error("error updating facebook user, id: {}, token: {}", fbID, token.getAccessToken());
+                throw new HttpBadRequestException();
+            }
+            UriComponentsBuilder uriComponentsBuilder = UriComponentsBuilder.fromUriString(state);
+            uriComponentsBuilder.queryParam("hash", userService.getHashByUID(uid));
+            return "redirect:" + uriComponentsBuilder.build().toUriString();
+        } else if (fb.getVerified()) {
+            if (!crosspostService.createFacebookUser(fbID, state, token.getAccessToken(), fb.getName(), fb.getLink())) {
+                if (StringUtils.isNotEmpty(fb.getEmail())) {
+                    logger.info("found {} for facebook user {}", fb.getEmail(), fb.getLink());
+                    Integer userId = crosspostService.getUIDbyFBID(fbID);
+                    if (!emailService.getEmails(userId, false).contains(fb.getEmail())) {
+                        emailService.addEmail(userId, fb.getEmail());
+                    }
+                }
+                logger.info("email not found for facebook user {}", fb.getLink());
+                throw new HttpBadRequestException();
+            }
+            return "redirect:/signup?type=fb&hash=" + state;
+        } else {
+            logger.error("Facebook account is not verified, id: {}", fbID);
+            throw new HttpBadRequestException();
+        }
+    }/*
+    @GetMapping("/_twitter")
+    protected void doTwitterLogin(HttpServletRequest request, HttpServletResponse response)
+            throws IOException, ExecutionException, InterruptedException {
+        String hash = StringUtils.EMPTY, request_token = StringUtils.EMPTY, request_token_secret = StringUtils.EMPTY;
+        String verifier = request.getParameter("oauth_verifier");
+        Cookie[] cookies = request.getCookies();
+        for (Cookie cookie : cookies) {
+            if (cookie.getName().equals("hash")) {
+                hash = cookie.getValue();
+            }
+            if (cookie.getName().equals("request_token")) {
+                request_token = cookie.getValue();
+            }
+            if (cookie.getName().equals("request_token_secret")) {
+                request_token_secret = cookie.getValue();
+            }
+        }
+        com.juick.User user = UserUtils.getCurrentUser();
+        OAuth10aService oAuthService = twitterBuilder
+                .apiSecret(twitterConsumerSecret)
+                .callback("http://juick.com/_twitter")
+                .build(TwitterApi.instance());
+
+        if (request_token.isEmpty() && request_token_secret.isEmpty()
+                && (verifier == null || verifier.isEmpty())) {
+            OAuth1RequestToken requestToken = oAuthService.getRequestToken();
+            String authUrl = oAuthService.getAuthorizationUrl(requestToken);
+            response.addCookie(new Cookie("request_token", requestToken.getToken()));
+            response.addCookie(new Cookie("request_token_secret", requestToken.getTokenSecret()));
+            response.setStatus(HttpServletResponse.SC_FOUND);
+            response.setHeader("Location", authUrl);
+        } else {
+            if (verifier != null && verifier.length() > 0) {
+                OAuth1RequestToken requestToken = new OAuth1RequestToken(request_token, request_token_secret);
+                OAuth1AccessToken accessToken = oAuthService.getAccessToken(requestToken, verifier);
+                OAuthRequest oAuthRequest = new OAuthRequest(Verb.GET, TWITTER_VERIFY_URL);
+                oAuthService.signRequest(accessToken, oAuthRequest);
+                com.juick.twitter.User twitterUser = jsonMapper.readValue(oAuthService.execute(oAuthRequest).getBody(),
+                        com.juick.twitter.User.class);
+                if (userService.linkTwitterAccount(user, accessToken.getToken(), accessToken.getTokenSecret(),
+                        twitterUser.getScreenName())) {
+                    response.setStatus(HttpServletResponse.SC_FOUND);
+                    response.setHeader("Location", "http://juick.com/settings");
+                } else {
+                    response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
+                }
+            }
+        }
+    }
+    @GetMapping("/_vklogin")
+    protected String doVKLogin(HttpServletRequest request,
+                           @RequestParam(required = false) String code,
+                           @RequestParam(required = false) String state,
+                           @CookieValue(required = false) String vkstate,
+                           HttpServletResponse response) throws IOException, ExecutionException, InterruptedException {
+        if (StringUtils.isBlank(code)) {
+            vkstate = UUID.randomUUID().toString();
+            Cookie c = new Cookie("vkstate", vkstate);
+            response.addCookie(c);
+            OAuth20Service vkAuthService = vkBuilder
+                    .apiSecret(VK_SECRET)
+                    .scope("friends,wall,offline")
+                    .state(vkstate)
+                    .callback(VK_REDIRECT)
+                    .build(VkontakteApi.instance());
+            return "redirect:" + vkAuthService.getAuthorizationUrl();
+        }
+
+        if (StringUtils.isBlank(vkstate) || !vkstate.equals(state)) {
+            throw new HttpBadRequestException();
+        } else {
+            Cookie c = new Cookie("vkstate", "-");
+            c.setMaxAge(0);
+            response.addCookie(c);
+        }
+
+        OAuth20Service vkService = vkBuilder
+                .apiKey(VK_APPID)
+                .apiSecret(VK_SECRET)
+                .build(VkontakteApi.instance());
+        OAuth2AccessToken token = vkService.getAccessToken(code);
+
+        OAuthRequest meRequest = new OAuthRequest(Verb.GET, "https://api.vk.com/method/users.get?fields=screen_name&v=5.73");
+        vkService.signRequest(token, meRequest);
+        String graph = vkService.execute(meRequest).getBody();
+
+        com.juick.vk.User jsonUser = jsonMapper.readValue(graph, UsersResponse.class).getUsers().get(0);
+        String vkName = jsonUser.getFirstName() + " " + jsonUser.getLastName();
+        String vkLink = jsonUser.getScreenName();
+
+        if (vkName.length() == 1 || StringUtils.isBlank(vkLink)) {
+            logger.error("vk user error");
+            throw new HttpBadRequestException();
+        }
+
+        Long vkID = NumberUtils.toLong(jsonUser.getId(), 0);
+        int uid = crosspostService.getUIDbyVKID(vkID);
+        if (uid > 0) {
+            Cookie c = new Cookie("hash", userService.getHashByUID(uid));
+            c.setMaxAge(50 * 24 * 60 * 60);
+            response.addCookie(c);
+            return Utils.getPreviousPageByRequest(request).orElse("redirect:/");
+        } else {
+            String loginhash = UUID.randomUUID().toString();
+            if (!crosspostService.createVKUser(vkID, loginhash, token.getAccessToken(), vkName, vkLink)) {
+                logger.error("create vk user error");
+                throw new HttpBadRequestException();
+            }
+            return "redirect:/signup?type=vk&hash=" + loginhash;
+        }
+    }
+
+    @GetMapping("/_tglogin")
+    public String doDurovLogin(HttpServletRequest request,
+                               @RequestParam Map<String, String> params,
+                               HttpServletResponse response) {
+        String dataCheckString = params.entrySet().stream()
+                .filter(p -> !p.getKey().equals("hash"))
+                .sorted(Map.Entry.comparingByKey())
+                .map(p -> p.getKey() + "=" + p.getValue())
+                .collect(Collectors.joining("\n"));
+        String hash = params.get("hash");
+        byte[] secretKey = DigestUtils.sha256(telegramToken);
+        String resultString = new HmacUtils(HmacAlgorithms.HMAC_SHA_256, secretKey).hmacHex(dataCheckString);
+        if (hash.equals(resultString)) {
+            Long tgUser = Long.valueOf(params.get("id"));
+            int uid = telegramService.getUser(tgUser);
+            if (uid > 0) {
+                Cookie c = new Cookie("hash", userService.getHashByUID(uid));
+                c.setMaxAge(50 * 24 * 60 * 60);
+                response.addCookie(c);
+                return Utils.getPreviousPageByRequest(request).orElse("redirect:/");
+            } else {
+                String username = StringUtils.defaultString(params.get("username"), params.get("first_name"));
+                telegramService.createTelegramUser(tgUser, username);
+                return "redirect:/signup?type=durov&hash=" + userService.getSignUpHashByTelegramID(tgUser, username);
+            }
+        } else {
+            logger.warn("invalid tg hash {} for {}", resultString, hash);
+        }
+        throw new HttpBadRequestException();
+    }*/
+}