/*
* Copyright (C) 2008-2020, 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.www.api;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.github.scribejava.apis.AppleClientSecretGenerator;
import com.github.scribejava.apis.AppleSignInApi;
import com.github.scribejava.apis.FacebookApi;
import com.github.scribejava.apis.GoogleTokenVerifier;
import com.github.scribejava.apis.VkontakteApi;
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.model.AuthResponse;
import com.juick.model.ext.facebook.User;
import com.juick.model.ext.vk.UsersResponse;
import com.juick.service.EmailService;
import com.juick.service.UserService;
import com.juick.util.HttpBadRequestException;
import com.juick.util.HttpForbiddenException;
import org.apache.commons.lang3.RandomStringUtils;
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.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.util.UriComponentsBuilder;
import javax.annotation.PostConstruct;
import javax.inject.Inject;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.util.Map;
import java.util.Optional;
import java.util.UUID;
import java.util.concurrent.ExecutionException;
/**
*
* @author Ugnich Anton
*/
@Controller
public class ApiSocialLogin {
private static final Logger logger = LoggerFactory.getLogger(ApiSocialLogin.class);
@Value("${facebook_appid:appid}")
private String FACEBOOK_APPID;
@Value("${facebook_secret:secret}")
private String FACEBOOK_SECRET;
private static final String FACEBOOK_REDIRECT = "https://api.juick.com/_fblogin";
private static final String VK_REDIRECT = "https://api.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 OAuth20Service facebookAuthService, vkAuthService, appleSignInService;
@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("${google_client_id:}")
private String googleClientId;
@Value("${apple_app_id:appid}")
private String appleApplicationId;
@Value("${ap_base_uri:http://localhost:8080/}")
private String baseUri;
@Inject
private UserService userService;
@Inject
private EmailService emailService;
@Inject
private AppleClientSecretGenerator clientSecretGenerator;
@Inject
private Users users;
@PostConstruct
public void init() {
ServiceBuilder facebookBuilder = new ServiceBuilder(FACEBOOK_APPID);
ServiceBuilder twitterBuilder = new ServiceBuilder(twitterConsumerKey);
ServiceBuilder vkBuilder = new ServiceBuilder(VK_APPID);
facebookAuthService = facebookBuilder
.apiSecret(FACEBOOK_SECRET)
.callback(FACEBOOK_REDIRECT)
.defaultScope("email")
.build(FacebookApi.instance());
vkAuthService = vkBuilder
.apiSecret(VK_SECRET)
.defaultScope("friends,wall,offline")
.callback(VK_REDIRECT)
.build(VkontakteApi.instance());
ServiceBuilder appleSignInBuilder = new ServiceBuilder(appleApplicationId);
UriComponentsBuilder redirectBuilder = UriComponentsBuilder.fromUriString(baseUri);
String appleSignInRedirectUri = redirectBuilder.replacePath("/api/_applelogin").build().toUriString();
appleSignInService = appleSignInBuilder
.callback(appleSignInRedirectUri)
.defaultScope("email")
.build(new AppleSignInApi(clientSecretGenerator));
}
@GetMapping("/api/_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();
userService.addFacebookState(fbstate, state);
return "redirect:" + facebookAuthService.getAuthorizationUrl(fbstate);
}
String redirectUrl = userService.verifyFacebookState(state);
if (StringUtils.isEmpty(redirectUrl)) {
logger.error("state is missing");
throw new HttpBadRequestException();
}
OAuth2AccessToken token = facebookAuthService.getAccessToken(code);
final OAuthRequest meRequest = new OAuthRequest(Verb.GET, "https://graph.facebook.com/me?fields=id,name,email");
facebookAuthService.signRequest(token, meRequest);
String graph = facebookAuthService.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())) {
logger.error("Missing required fields, id: {}, name: {}", fbID, fb.getName());
throw new HttpBadRequestException();
}
Optional<com.juick.model.User> existingFacebookUser = userService.getUserByFacebookId(fbID);
if (existingFacebookUser.isPresent()) {
if (!userService.updateFacebookUser(fbID, token.getAccessToken(), fb.getName())) {
logger.error("error updating facebook user, id: {}, token: {}", fbID, token.getAccessToken());
throw new HttpBadRequestException();
}
if (StringUtils.isNotEmpty(fb.getEmail())) {
logger.info("found {} for facebook user {}", fb.getEmail(), fb.getName());
Integer userId = existingFacebookUser.get().getUid();
if (!emailService.getEmails(userId, false).contains(fb.getEmail())) {
emailService.addEmail(userId, fb.getEmail());
}
}
UriComponentsBuilder uriComponentsBuilder = UriComponentsBuilder.fromUriString(redirectUrl);
uriComponentsBuilder.queryParam("hash", userService.getHashByUID(existingFacebookUser.get().getUid()));
uriComponentsBuilder.queryParam("retpath", redirectUrl);
return "redirect:" + uriComponentsBuilder.build().toUriString();
} else {
if (!userService.createFacebookUser(fbID, state, token.getAccessToken(), fb.getName())) {
throw new HttpBadRequestException();
}
return "redirect:/signup?type=fb&hash=" + state;
}
}
@GetMapping("/api/_vklogin")
protected String doVKLogin(@RequestParam(required = false) String code,
@RequestParam String state) throws IOException, ExecutionException, InterruptedException {
if (StringUtils.isBlank(code)) {
String vkstate = UUID.randomUUID().toString();
userService.addVKState(vkstate, state);
return "redirect:" + vkAuthService.getAuthorizationUrl(vkstate);
}
String redirectUrl = userService.verifyVKState(state);
if (StringUtils.isBlank(redirectUrl)) {
logger.error("state is missing");
throw new HttpBadRequestException();
}
OAuth2AccessToken token = vkAuthService.getAccessToken(code);
OAuthRequest meRequest = new OAuthRequest(Verb.GET, "https://api.vk.com/method/users.get?fields=screen_name&v=5.73");
vkAuthService.signRequest(token, meRequest);
String graph = vkAuthService.execute(meRequest).getBody();
com.juick.model.ext.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 = userService.getUIDbyVKID(vkID);
if (uid > 0) {
UriComponentsBuilder uriComponentsBuilder = UriComponentsBuilder.fromUriString(redirectUrl);
uriComponentsBuilder.queryParam("hash", userService.getHashByUID(uid));
uriComponentsBuilder.queryParam("retpath", redirectUrl);
return "redirect:" + uriComponentsBuilder.build().toUriString();
} else {
String loginhash = UUID.randomUUID().toString();
if (!userService.createVKUser(vkID, loginhash, token.getAccessToken(), vkName, vkLink)) {
logger.error("create vk user error");
throw new HttpBadRequestException();
}
return "redirect:/signup?type=vk&hash=" + loginhash;
}
}
@ResponseBody
@PostMapping("/api/_google")
public AuthResponse googleSignIn(@RequestParam(name = "idToken") String idTokenString)
throws GeneralSecurityException, IOException {
logger.info("Token: {}", idTokenString);
logger.info("Client: {}", googleClientId);
Optional<String> verifiedEmail = GoogleTokenVerifier.validateToken(idTokenString);
if (verifiedEmail.isPresent()) {
String email = verifiedEmail.get();
com.juick.model.User visitor = userService.getUserByEmail(email);
if (visitor.isAnonymous()) {
String verificationCode = RandomStringUtils.randomAlphanumeric(8).toUpperCase();
emailService.addVerificationCode(null, email, verificationCode);
return new AuthResponse(null, email, verificationCode);
} else {
return new AuthResponse(users.getMe(visitor), null, null);
}
}
throw new HttpForbiddenException();
}
@ResponseBody
@PostMapping("/api/signup")
public com.juick.model.User signupWithEmail(String username, String password, String verificationCode) {
if (username.length() < 2 || username.length() > 16 || !username.matches("^[a-zA-Z0-9\\-]+$")
|| password.length() < 6 || password.length() > 32) {
throw new HttpBadRequestException();
}
String verifiedEmail = emailService.getEmailByAuthCode(verificationCode);
if (StringUtils.isNotEmpty(verifiedEmail)) {
com.juick.model.User newUser = userService.createUser(username, password).orElseThrow(HttpBadRequestException::new);
emailService.addEmail(newUser.getUid(), verifiedEmail);
emailService.deleteAuthCode(verificationCode);
return newUser;
} else {
throw new HttpForbiddenException();
}
}
@GetMapping("/api/_applelogin")
public String doAppleLogin(@RequestParam(required = false) String code, @RequestParam String state) {
if (StringUtils.isBlank(code)) {
String astate = UUID.randomUUID().toString();
userService.addVKState(astate, state);
return "redirect:" + appleSignInService.getAuthorizationUrl(astate);
}
throw new HttpBadRequestException();
}
@PostMapping("/api/_applelogin")
public String doVerifyAppleResponse(@RequestParam Map<String, String> body) throws InterruptedException, ExecutionException, IOException {
OAuth2AccessToken token = appleSignInService.getAccessToken(body.get("code"));
var jsonNode = jsonMapper.readTree(token.getRawResponse());
var idToken = jsonNode.get("id_token").textValue();
AppleSignInApi api = (AppleSignInApi) appleSignInService.getApi();
var email = api.validateToken(idToken);
if (email.isPresent()) {
com.juick.model.User user = userService.getUserByEmail(email.get());
if (!user.isAnonymous()) {
String redirectUrl = userService.verifyVKState(body.get("state"));
if (StringUtils.isBlank(redirectUrl)) {
logger.error("state is missing");
throw new HttpBadRequestException();
}
UriComponentsBuilder uriComponentsBuilder = UriComponentsBuilder.fromUriString(redirectUrl);
uriComponentsBuilder.queryParam("hash", userService.getHashByUID(user.getUid()));
uriComponentsBuilder.queryParam("retpath", redirectUrl);
return "redirect:" + uriComponentsBuilder.build().toUriString();
} else {
String verificationCode = RandomStringUtils.randomAlphanumeric(8).toUpperCase();
emailService.addVerificationCode(null, email.get(), verificationCode);
return "redirect:/signup?type=email&hash=" + verificationCode;
}
}
throw new HttpBadRequestException();
}
}