Reorganize layout and code cleanup

46 files changed, 3929 insertions, 0 deletions

diff --git a/src/main/java/com/juick/www/api/ApiSocialLogin.java b/src/main/java/com/juick/www/api/ApiSocialLogin.java
new file mode 100644
index 00000000..6499b507
--- /dev/null
+++ b/src/main/java/com/juick/www/api/ApiSocialLogin.java
@@ -0,0 +1,322 @@
+/*
+ * Copyright (C) 2008-2019, 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.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.google.api.client.googleapis.auth.oauth2.GoogleIdToken;
+import com.google.api.client.googleapis.auth.oauth2.GoogleIdTokenVerifier;
+import com.google.api.client.http.HttpTransport;
+import com.google.api.client.http.javanet.NetHttpTransport;
+import com.google.api.client.json.JsonFactory;
+import com.google.api.client.json.jackson2.JacksonFactory;
+import com.juick.model.AuthResponse;
+import com.juick.model.ext.facebook.User;
+import com.juick.server.util.HttpBadRequestException;
+import com.juick.service.CrosspostService;
+import com.juick.service.EmailService;
+import com.juick.service.UserService;
+import com.juick.model.ext.vk.UsersResponse;
+import com.nimbusds.jose.JOSEException;
+import com.nimbusds.jose.proc.BadJOSEException;
+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.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+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.text.ParseException;
+import java.util.Collections;
+import java.util.Map;
+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 CrosspostService crosspostService;
+    @Inject
+    private UserService userService;
+    @Inject
+    private EmailService emailService;
+    @Inject
+    private AppleClientSecretGenerator clientSecretGenerator;
+    @Inject
+    private Users users;
+
+    private final HttpTransport transport = new NetHttpTransport();
+    private final JsonFactory jsonFactory = new JacksonFactory();
+    private GoogleIdTokenVerifier verifier;
+
+    @PostConstruct
+    public void init() {
+        ServiceBuilder facebookBuilder = new ServiceBuilder(FACEBOOK_APPID);
+        ServiceBuilder twitterBuilder = new ServiceBuilder(twitterConsumerKey);
+        ServiceBuilder vkBuilder = new ServiceBuilder(VK_APPID);
+        verifier = new GoogleIdTokenVerifier.Builder(transport, jsonFactory)
+                .setAudience(Collections.singletonList(googleClientId))
+                .build();
+        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();
+            crosspostService.addFacebookState(fbstate, state);
+            return "redirect:" + facebookAuthService.getAuthorizationUrl(fbstate);
+        }
+
+        String redirectUrl = crosspostService.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/v3.2/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();
+        }
+
+        int uid = crosspostService.getUIDbyFBID(fbID);
+        if (uid > 0) {
+            if (!crosspostService.updateFacebookUser(fbID, token.getAccessToken(), fb.getName())) {
+                logger.error("error updating facebook user, id: {}, token: {}", fbID, token.getAccessToken());
+                throw new HttpBadRequestException();
+            }
+            UriComponentsBuilder uriComponentsBuilder = UriComponentsBuilder.fromUriString(redirectUrl);
+            uriComponentsBuilder.queryParam("hash", userService.getHashByUID(uid));
+            uriComponentsBuilder.queryParam("retpath", redirectUrl);
+            return "redirect:" + uriComponentsBuilder.build().toUriString();
+        } else {
+            if (!crosspostService.createFacebookUser(fbID, state, token.getAccessToken(), fb.getName())) {
+                if (StringUtils.isNotEmpty(fb.getEmail())) {
+                    logger.info("found {} for facebook user {}", fb.getEmail(), fb.getName());
+                    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.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();
+            crosspostService.addVKState(vkstate, state);
+            return "redirect:" + vkAuthService.getAuthorizationUrl(vkstate);
+        }
+
+        String redirectUrl = crosspostService.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 = crosspostService.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 (!crosspostService.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 ResponseEntity<AuthResponse> googleSignIn(@RequestParam(name = "idToken") String idTokenString)
+            throws GeneralSecurityException, IOException {
+        logger.info("Token: {}", idTokenString);
+        logger.info("Client: {}", googleClientId);
+        GoogleIdToken idToken = verifier.verify(idTokenString);
+        if (idToken != null) {
+            String email = idToken.getPayload().getEmail();
+            com.juick.model.User visitor = userService.getUserByEmail(email);
+            if (visitor.isAnonymous()) {
+                String verificationCode = RandomStringUtils.randomAlphanumeric(8).toUpperCase();
+                emailService.addVerificationCode(null, email, verificationCode);
+                return ResponseEntity.ok(new AuthResponse(null, email, verificationCode));
+            } else {
+                return ResponseEntity.ok(new AuthResponse(users.getMe(visitor), null, null));
+            }
+        }
+        return ResponseEntity.status(HttpStatus.FORBIDDEN).body(null);
+    }
+    @ResponseBody
+    @PostMapping("/api/signup")
+    public ResponseEntity<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 ResponseEntity.ok(newUser);
+        } else {
+            return ResponseEntity.status(HttpStatus.FORBIDDEN).body(null);
+        }
+    }
+    @GetMapping("/api/_applelogin")
+    public String doAppleLogin(@RequestParam(required = false) String code, @RequestParam String state) {
+        if (StringUtils.isBlank(code)) {
+            String astate = UUID.randomUUID().toString();
+            crosspostService.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, ParseException, JOSEException, BadJOSEException {
+        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 = crosspostService.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();
+    }
+}
diff --git a/src/main/java/com/juick/www/api/Index.java b/src/main/java/com/juick/www/api/Index.java
new file mode 100644
index 00000000..5b771efd
--- /dev/null
+++ b/src/main/java/com/juick/www/api/Index.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2008-2019, 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 org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.servlet.support.ServletUriComponentsBuilder;
+import springfox.documentation.annotations.ApiIgnore;
+
+import java.net.URI;
+
+/**
+ * Created by vitalyster on 25.07.2016.
+ */
+@RestController
+public class Index {
+
+    @ApiIgnore
+    @RequestMapping(value = { "/api/", "/ws/" }, method = RequestMethod.GET)
+    public ResponseEntity<Void> description() {
+        URI redirectUri = ServletUriComponentsBuilder.fromCurrentRequestUri().path("/swagger-ui.html").build().toUri();
+        return ResponseEntity.status(HttpStatus.MOVED_PERMANENTLY).location(redirectUri).build();
+    }
+}
diff --git a/src/main/java/com/juick/www/api/Messages.java b/src/main/java/com/juick/www/api/Messages.java
new file mode 100644
index 00000000..59ed7c8f
--- /dev/null
+++ b/src/main/java/com/juick/www/api/Messages.java
@@ -0,0 +1,217 @@
+/*
+ * Copyright (C) 2008-2019, 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.juick.model.Message;
+import com.juick.model.Tag;
+import com.juick.model.User;
+import com.juick.server.Utils;
+import com.juick.www.WebApp;
+import com.juick.model.CommandResult;
+import com.juick.server.util.HttpBadRequestException;
+import com.juick.service.MessagesService;
+import com.juick.service.TagService;
+import com.juick.service.UserService;
+import com.juick.service.component.SystemEvent;
+import com.juick.service.security.annotation.Visitor;
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.lang3.tuple.Pair;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.ApplicationEventPublisher;
+import org.springframework.core.io.Resource;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.util.StringUtils;
+import org.springframework.web.bind.annotation.*;
+
+import javax.inject.Inject;
+import java.io.IOException;
+import java.util.*;
+import java.util.stream.Collectors;
+
+/**
+ * @author ugnich
+ */
+@RestController
+@RequestMapping(produces = MediaType.APPLICATION_JSON_VALUE)
+public class Messages {
+
+    private static final ResponseEntity<List<Message>> NOT_FOUND = ResponseEntity
+            .status(HttpStatus.NOT_FOUND)
+            .body(Collections.emptyList());
+
+    private static final ResponseEntity<List<Message>> FORBIDDEN = ResponseEntity
+            .status(HttpStatus.FORBIDDEN)
+            .body(Collections.emptyList());
+
+    @Inject
+    private MessagesService messagesService;
+    @Inject
+    private UserService userService;
+    @Inject
+    private TagService tagService;
+    @Inject
+    private ApplicationEventPublisher applicationEventPublisher;
+    @Inject
+    private WebApp webApp;
+    @Value("classpath:Transparent.gif")
+    private Resource invisiblePixel;
+
+    // TODO: serialize image urls
+
+    @GetMapping("/api/home")
+    public ResponseEntity<List<Message>> getHome(
+            @Visitor User visitor,
+            @RequestParam(defaultValue = "0") int before_mid) {
+        if (!visitor.isAnonymous()) {
+            int vuid = visitor.getUid();
+            List<Integer> mids = messagesService.getMyFeed(vuid, before_mid, true);
+            List<Message> msgs = messagesService.getMessages(visitor, mids);
+            msgs.forEach(m -> m.getUser().setAvatar(webApp.getAvatarUrl(m.getUser())));
+            return ResponseEntity.ok(msgs);
+        }
+        return FORBIDDEN;
+    }
+
+    @GetMapping("/api/messages")
+    public ResponseEntity<List<Message>> getMessages(
+            @Visitor User visitor,
+            @RequestParam(required = false) String uname,
+            @RequestParam(name = "before_mid", defaultValue = "0") Integer before,
+            @RequestParam(required = false, defaultValue = "0") Integer daysback,
+            @RequestParam(required = false) String withrecommended,
+            @RequestParam(required = false) String popular,
+            @RequestParam(required = false) String search,
+            @RequestParam(required = false, defaultValue = "0") Integer page,
+            @RequestParam(required = false) String media,
+            @RequestParam(required = false) String tag) {
+        List<Integer> mids;
+        if (!StringUtils.isEmpty(uname)) {
+            User user = userService.getUserByName(uname);
+            if (!user.isAnonymous() && !user.isBanned()) {
+                if (!StringUtils.isEmpty(media)) {
+                    mids = messagesService.getUserPhotos(user.getUid(), 0, before);
+                } else if (!StringUtils.isEmpty(tag)) {
+                    Tag tagObject = tagService.getTag(tag, false);
+                    if (tagObject != null) {
+                        mids = messagesService.getUserTag(user.getUid(), tagObject.TID, 0, before);
+                    } else {
+                        return NOT_FOUND;
+                    }
+                } else if (!StringUtils.isEmpty(withrecommended)) {
+                    mids = messagesService.getUserBlogWithRecommendations(user.getUid(), 0, before);
+                } else if (daysback > 0) {
+                    mids = messagesService.getUserBlogAtDay(user.getUid(), 0, daysback);
+                } else if (!StringUtils.isEmpty(search)) {
+                    mids = messagesService.getUserSearch(visitor, user.getUid(), Utils.encodeSphinx(search), 0, page);
+                } else {
+                    mids = messagesService.getUserBlog(user.getUid(), 0, before);
+                }
+            } else {
+                return NOT_FOUND;
+            }
+        } else {
+            if (!StringUtils.isEmpty(popular)) {
+                mids = messagesService.getPopular(visitor.getUid(), before);
+            } else if (!StringUtils.isEmpty(media)) {
+                mids = messagesService.getPhotos(visitor.getUid(), before);
+            } else if (!StringUtils.isEmpty(tag)) {
+                Tag tagObject = tagService.getTag(tag, false);
+                if (tagObject != null) {
+                    mids = messagesService.getTag(tagObject.TID, visitor.getUid(), before, 20);
+                } else {
+                    return NOT_FOUND;
+                }
+            } else if (!StringUtils.isEmpty(search)) {
+                mids = messagesService.getSearch(visitor, Utils.encodeSphinx(search), page);
+            } else {
+                mids = messagesService.getAll(visitor.getUid(), before);
+            }
+        }
+        List<Message> msgs = messagesService.getMessages(visitor, mids);
+        msgs.forEach(m -> m.getUser().setAvatar(webApp.getAvatarUrl(m.getUser())));
+        return ResponseEntity.ok(msgs);
+    }
+    @DeleteMapping("/api/messages")
+    public CommandResult deleteMessage(
+            @Visitor User visitor,
+            @RequestParam int mid, @RequestParam(required = false, defaultValue = "0") int rid) {
+        if (rid > 0) {
+            if (messagesService.deleteReply(visitor.getUid(), mid, rid)) {
+                return CommandResult.fromString("Reply deleted");
+            }
+        }
+        if (messagesService.deleteMessage(visitor.getUid(), mid)) {
+            return CommandResult.fromString("Message deleted");
+        }
+        throw new HttpBadRequestException();
+    }
+
+    @GetMapping("/api/messages/discussions")
+    public List<Message> getDiscussions(
+            @Visitor User visitor,
+            @RequestParam(required = false, defaultValue = "0") Long to) {
+        List<Message> msgs = messagesService.getMessages(visitor,
+                messagesService.getDiscussions(visitor.getUid(), to));
+        msgs.forEach(m -> m.getUser().setAvatar(webApp.getAvatarUrl(m.getUser())));
+        return msgs;
+    }
+    @GetMapping("/api/thread")
+    public ResponseEntity<List<Message>> getThread(
+            @Visitor User visitor,
+            @RequestParam(defaultValue = "0") int mid) {
+        Optional<Message> message = messagesService.getMessage(mid);
+        if (message.isPresent()) {
+            Message msg = message.get();
+            if (!messagesService.canViewThread(mid, visitor.getUid())) {
+                return FORBIDDEN;
+            } else {
+                msg.getUser().setAvatar(webApp.getAvatarUrl(msg.getUser()));
+                msg.setRecommendations(new HashSet<>(messagesService.getMessagesRecommendations(
+                        Collections.singletonList(msg.getMid()))
+                        .stream().map(Pair::getRight).collect(Collectors.toList())));
+                msg.getRecommendations().forEach(r -> r.setAvatar(webApp.getAvatarUrl(r)));
+                List<Message> replies = messagesService.getReplies(visitor, mid);
+                replies.forEach(m -> m.getUser().setAvatar(webApp.getAvatarUrl(m.getUser())));
+                if (!visitor.isAnonymous()) {
+                    userService.updateLastSeen(visitor);
+                    applicationEventPublisher.publishEvent(
+                            new SystemEvent(this, SystemActivity.read(visitor, msg)));
+                }
+                replies.add(0, msg);
+                return ResponseEntity.ok(replies);
+            }
+        }
+        return NOT_FOUND;
+    }
+    @GetMapping(value = "/api/thread/mark_read/{mid}-{rid}.gif", produces = MediaType.IMAGE_GIF_VALUE)
+    public byte[] markThreadRead(
+            @Visitor User visitor,
+            @PathVariable int mid, @PathVariable int rid) throws IOException {
+        if (!visitor.isAnonymous()) {
+            messagesService.setLastReadComment(visitor, mid, rid);
+            Message msg = messagesService.getMessage(mid).orElseThrow(IllegalStateException::new);
+            userService.updateLastSeen(visitor);
+            applicationEventPublisher.publishEvent(
+                    new SystemEvent(this, SystemActivity.read(visitor, msg)));
+            return IOUtils.toByteArray(invisiblePixel.getInputStream());
+        }
+        throw new HttpBadRequestException();
+    }
+}
diff --git a/src/main/java/com/juick/www/api/Notifications.java b/src/main/java/com/juick/www/api/Notifications.java
new file mode 100644
index 00000000..ca382246
--- /dev/null
+++ b/src/main/java/com/juick/www/api/Notifications.java
@@ -0,0 +1,213 @@
+/*
+ * Copyright (C) 2008-2019, 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.juick.model.ExternalToken;
+import com.juick.model.Message;
+import com.juick.model.Status;
+import com.juick.model.User;
+import com.juick.model.AnonymousUser;
+import com.juick.server.util.HttpBadRequestException;
+import com.juick.service.MessagesService;
+import com.juick.service.PushQueriesService;
+import com.juick.service.SubscriptionService;
+import com.juick.service.TelegramService;
+import com.juick.service.UserService;
+import com.juick.service.security.annotation.Visitor;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import springfox.documentation.annotations.ApiIgnore;
+
+import javax.inject.Inject;
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * Created by vitalyster on 24.10.2016.
+ */
+@RestController
+public class Notifications {
+
+    @Inject
+    private PushQueriesService pushQueriesService;
+    @Inject
+    private MessagesService messagesService;
+    @Inject
+    private SubscriptionService subscriptionService;
+    @Inject
+    private UserService userService;
+    @Inject
+    private TelegramService telegramService;
+    @Value("${api_user:juick}")
+    private String serviceUser;
+
+
+    private User collectTokens(Integer uid) {
+        User user = userService.getUserByUID(uid).orElse(AnonymousUser.INSTANCE);
+        user.setUnreadCount(messagesService.getUnread(user).size());
+        pushQueriesService.getGCMRegID(uid).forEach(t -> user.getTokens().add(new ExternalToken(null, "gcm", t, null)));
+        pushQueriesService.getAPNSToken(uid).forEach(t -> user.getTokens().add(new ExternalToken(null, "apns", t, null)));
+        pushQueriesService.getMPNSURL(uid).forEach(t -> user.getTokens().add(new ExternalToken(null, "mpns", t, null)));
+        List<ExternalToken> xmppJids = userService.getJIDsbyUID(uid).stream()
+                .map(jid -> new ExternalToken(null, "xmpp", jid, null))
+                .collect(Collectors.toList());
+        user.getTokens().addAll(xmppJids);
+        List<ExternalToken> tgIds = telegramService.getTelegramIdentifiers(Collections.singletonList(user)).stream()
+                .map(tgId -> new ExternalToken(null, "durov", String.valueOf(tgId), null))
+                .collect(Collectors.toList());
+        user.getTokens().addAll(tgIds);
+        return user;
+    }
+
+    @ApiIgnore
+    @RequestMapping(value = "/api/notifications", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
+    public ResponseEntity<List<User>> doGet(
+            @Visitor User visitor,
+            @RequestParam(required = false, defaultValue = "0") int uid,
+            @RequestParam(required = false, defaultValue = "0") int mid,
+            @RequestParam(required = false, defaultValue = "0") int rid) {
+        if (!(visitor.getName().equals(serviceUser))) {
+            return ResponseEntity.status(HttpStatus.FORBIDDEN).body(null);
+        }
+        if (uid > 0 && mid == 0) {
+            // PM
+            return ResponseEntity.ok(Collections.singletonList(collectTokens(uid)));
+        } else {
+            if (mid > 0) {
+                // reply
+                Message msg = messagesService.getMessage(mid).orElseThrow(IllegalStateException::new);
+                List<User> users;
+                if (rid > 0) {
+                    Message op = messagesService.getMessage(mid).orElseThrow(IllegalStateException::new);
+                    Message reply = messagesService.getReply(mid, rid);
+                    users = subscriptionService.getUsersSubscribedToComments(op, reply);
+                } else {
+                    users = subscriptionService.getSubscribedUsers(msg.getUser().getUid(), msg);
+                }
+
+                return ResponseEntity.ok(users.stream().map(User::getUid)
+                        .map(this::collectTokens).collect(Collectors.toList()));
+            } else {
+                // read
+                return ResponseEntity.ok(Collections.singletonList(collectTokens(uid)));
+            }
+        }
+    }
+
+    @ApiIgnore
+    @RequestMapping(value = "/api/notifications", method = RequestMethod.DELETE, produces = MediaType.APPLICATION_JSON_VALUE)
+    public ResponseEntity<Status> doDelete(
+            @Visitor User visitor,
+            @RequestBody List<ExternalToken> list) {
+        if (!visitor.getName().equals(serviceUser)) {
+            return ResponseEntity.status(HttpStatus.FORBIDDEN).body(null);
+        }
+        list.forEach(t -> {
+            switch (t.getType()) {
+                case "gcm":
+                    pushQueriesService.deleteGCMToken(t.getToken());
+                    break;
+                case "apns":
+                    pushQueriesService.deleteAPNSToken(t.getToken());
+                    break;
+                case "mpns":
+                    pushQueriesService.deleteMPNSToken(t.getToken());
+                    break;
+                default:
+                    throw new HttpBadRequestException();
+            }
+        });
+
+        return ResponseEntity.ok(Status.OK);
+    }
+    @ApiIgnore
+    @RequestMapping(value = "/api/notifications/delete", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_VALUE)
+    public ResponseEntity<Status> doDeleteTokens(
+            @Visitor User visitor,
+            @RequestBody List<ExternalToken> list) {
+        if (!visitor.getName().equals(serviceUser)) {
+            return ResponseEntity.status(HttpStatus.FORBIDDEN).body(null);
+        }
+        list.forEach(t -> {
+            switch (t.getType()) {
+                case "gcm":
+                    pushQueriesService.deleteGCMToken(t.getToken());
+                    break;
+                case "apns":
+                    pushQueriesService.deleteAPNSToken(t.getToken());
+                    break;
+                case "mpns":
+                    pushQueriesService.deleteMPNSToken(t.getToken());
+                    break;
+                default:
+                    throw new HttpBadRequestException();
+            }
+        });
+
+        return ResponseEntity.ok(Status.OK);
+    }
+
+    @ApiIgnore
+    @RequestMapping(value = "/api/notifications", method = RequestMethod.PUT, produces = MediaType.APPLICATION_JSON_VALUE)
+    public Status doPut(
+            @Visitor User visitor,
+            @RequestBody List<ExternalToken> list) {
+        list.forEach(t -> {
+            switch (t.getType()) {
+                case "gcm":
+                    pushQueriesService.addGCMToken(visitor.getUid(), t.getToken());
+                    break;
+                case "apns":
+                    pushQueriesService.addAPNSToken(visitor.getUid(), t.getToken());
+                    break;
+                case "mpns":
+                    pushQueriesService.addMPNSToken(visitor.getUid(), t.getToken());
+                    break;
+                default:
+                    throw new HttpBadRequestException();
+            }
+        });
+        return Status.OK;
+    }
+
+    @Deprecated
+    @RequestMapping(value = "/api/android/register", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
+    public Status doAndroidRegister(
+            @Visitor User visitor,
+            @RequestParam(name = "regid") String regId) {
+        pushQueriesService.addGCMToken(visitor.getUid(), regId);
+        return Status.OK;
+    }
+
+    @Deprecated
+    @RequestMapping(value = "/api/winphone/register", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
+    public Status doWinphoneRegister(
+            @Visitor User visitor,
+            @RequestParam(name = "url") String regId) {
+        pushQueriesService.addMPNSToken(visitor.getUid(), regId);
+        return Status.OK;
+    }
+}
diff --git a/src/main/java/com/juick/www/api/PM.java b/src/main/java/com/juick/www/api/PM.java
new file mode 100644
index 00000000..b81dcc78
--- /dev/null
+++ b/src/main/java/com/juick/www/api/PM.java
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2008-2019, 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.juick.model.Chat;
+import com.juick.model.Message;
+import com.juick.model.User;
+import com.juick.model.AnonymousUser;
+import com.juick.model.PrivateChats;
+import com.juick.server.util.HttpBadRequestException;
+import com.juick.server.util.HttpForbiddenException;
+import com.juick.server.util.WebUtils;
+import com.juick.www.WebApp;
+import com.juick.service.PMQueriesService;
+import com.juick.service.UserService;
+import com.juick.service.component.SystemEvent;
+import com.juick.service.security.annotation.Visitor;
+import org.springframework.context.ApplicationEventPublisher;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.inject.Inject;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * @author ugnich
+ */
+@RestController
+public class PM {
+    @Inject
+    private UserService userService;
+    @Inject
+    private PMQueriesService pmQueriesService;
+    @Inject
+    private ApplicationEventPublisher applicationEventPublisher;
+    @Inject
+    private WebApp webApp;
+
+    @RequestMapping(value = "/api/pm", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
+    public List<Message> doGetPM(
+            @Visitor User visitor,
+            @RequestParam(required = false) String uname) {
+        int uid = 0;
+        if (uname != null && uname.matches("^[a-zA-Z0-9\\-]{2,16}$")) {
+            uid = userService.getUIDbyName(uname);
+        }
+
+        if (uid == 0) {
+            throw new HttpBadRequestException();
+        }
+
+        List<Message> msgs = pmQueriesService.getPMMessages(visitor.getUid(), uid);
+        msgs.forEach(m -> m.getUser().setAvatar(webApp.getAvatarUrl(m.getUser())));
+        return msgs;
+    }
+
+    @RequestMapping(value = "/api/pm", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_VALUE)
+    public Message doPostPM(
+            @Visitor User visitor,
+            @RequestParam String uname,
+            @RequestParam String body) {
+        User userTo = AnonymousUser.INSTANCE;
+        if (WebUtils.isUserName(uname)) {
+            userTo = userService.getUserByName(uname);
+        }
+
+        if (userTo.getUid() == 0 || body == null || body.length() < 1 || body.length() > 10240) {
+            throw new HttpBadRequestException();
+        }
+
+        if (userService.isInBLAny(userTo.getUid(), visitor.getUid())) {
+            throw new HttpForbiddenException();
+        }
+
+        if (pmQueriesService.createPM(visitor.getUid(), userTo.getUid(), body)) {
+            Message jmsg = new Message();
+            jmsg.setUser(visitor);
+            jmsg.setText(body);
+            jmsg.setTo(userTo);
+            jmsg.getUser().setAvatar(webApp.getAvatarUrl(jmsg.getUser()));
+            applicationEventPublisher.publishEvent(
+                    new SystemEvent(this,
+                            SystemActivity.message(jmsg.getUser(), jmsg, Collections.singletonList(jmsg.getTo()))));
+            return jmsg;
+
+        }
+        throw new HttpBadRequestException();
+    }
+    @RequestMapping(value = "/api/groups_pms", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
+    public PrivateChats doGetGroupsPMs(
+            @Visitor User visitor,
+            @RequestParam(defaultValue = "5") int cnt) {
+        // TODO: ignore cnt param for now but make sure paging param will not be cnt
+
+        List<Chat> lastconv = pmQueriesService.getLastChats(visitor);
+        lastconv.forEach(c -> c.setAvatar(webApp.getAvatarUrl(c)));
+        PrivateChats pms = new PrivateChats();
+        pms.setUsers(lastconv);
+        return pms;
+    }
+}
diff --git a/src/main/java/com/juick/www/api/Post.java b/src/main/java/com/juick/www/api/Post.java
new file mode 100644
index 00000000..3c1fbf6b
--- /dev/null
+++ b/src/main/java/com/juick/www/api/Post.java
@@ -0,0 +1,238 @@
+/*
+ * Copyright (C) 2008-2019, 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.juick.model.Message;
+import com.juick.model.Reaction;
+import com.juick.model.Status;
+import com.juick.model.User;
+import com.juick.model.CommandResult;
+import com.juick.server.ActivityPubManager;
+import com.juick.server.CommandsManager;
+import com.juick.server.util.HttpBadRequestException;
+import com.juick.server.util.HttpForbiddenException;
+import com.juick.server.util.HttpNotFoundException;
+import com.juick.server.util.HttpUtils;
+import com.juick.service.MessagesService;
+import com.juick.service.UserService;
+import com.juick.service.activities.UpdateEvent;
+import com.juick.service.security.annotation.Visitor;
+import org.apache.commons.lang3.StringUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.ApplicationEventPublisher;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.multipart.MultipartFile;
+
+import javax.inject.Inject;
+import javax.validation.constraints.NotNull;
+import java.net.URI;
+import java.net.URL;
+import java.util.List;
+import java.util.Optional;
+
+/**
+ * Created by vt on 24/11/2016.
+ */
+@RestController
+public class Post {
+    private final static Logger logger = LoggerFactory.getLogger("API");
+
+    @Inject
+    private UserService userService;
+    @Inject
+    private MessagesService messagesService;
+    @Value("${upload_tmp_dir:#{systemEnvironment['TEMP'] ?: '/tmp'}}")
+    private String tmpDir;
+    @Inject
+    CommandsManager commandsManager;
+    @Inject
+    ApplicationEventPublisher applicationEventPublisher;
+    @Inject
+    ActivityPubManager activityPubManager;
+
+    @RequestMapping(value = "/api/post", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_VALUE)
+    @ResponseStatus(value = HttpStatus.OK)
+    public CommandResult doPostMessage(
+            @Visitor User visitor,
+            @RequestParam(required = false, defaultValue = StringUtils.EMPTY) String body,
+            @RequestParam(required = false) String img,
+            @RequestParam(required = false) MultipartFile attach) throws Exception {
+        body = body.replace("\r", StringUtils.EMPTY);
+
+        URI attachmentFName = HttpUtils.receiveMultiPartFile(attach, tmpDir);
+
+        if (StringUtils.isBlank(attachmentFName.toString()) && img != null && img.length() > 10) {
+            URI juickUri = URI.create(img);
+            if (juickUri.getScheme().equals("juick")) {
+                attachmentFName = juickUri;
+            } else {
+                try {
+                    URL imgUrl = new URL(img);
+                    attachmentFName = HttpUtils.downloadImage(imgUrl, tmpDir);
+                } catch (Exception e) {
+                    logger.error("DOWNLOAD ERROR", e);
+                    throw new HttpBadRequestException();
+                }
+            }
+        }
+        if (StringUtils.isBlank(body) && StringUtils.isBlank(attachmentFName.toString())) {
+            // Should be there for compatibility
+            throw new HttpBadRequestException();
+        }
+        return commandsManager.processCommand(visitor, body, attachmentFName);
+    }
+
+    @RequestMapping(value = "/api/comment", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_VALUE)
+    public CommandResult doPostComment(
+            @Visitor User visitor,
+            @RequestParam(defaultValue = "0") int mid,
+            @RequestParam(defaultValue = "0") int rid,
+            @RequestParam(required = false, defaultValue = StringUtils.EMPTY) final String body,
+            @RequestParam(required = false) String img,
+            @RequestParam(required = false) MultipartFile attach)
+            throws Exception {
+        if (mid == 0) {
+            throw new HttpBadRequestException();
+        }
+        Optional<Message> message = messagesService.getMessage(mid);
+        if (message.isEmpty()) {
+            throw new HttpNotFoundException();
+        }
+
+        Message msg = message.get();
+
+        Message reply = null;
+        if (rid > 0) {
+            reply = messagesService.getReply(mid, rid);
+            if (reply == null) {
+                throw new HttpNotFoundException();
+            }
+        }
+
+        if ((msg.ReadOnly && msg.getUser().getUid() != visitor.getUid())
+                || userService.isInBLAny(msg.getUser().getUid(), visitor.getUid())
+                || (reply != null && userService.isInBLAny(reply.getUser().getUid(), visitor.getUid()))) {
+            // TODO: validator
+            throw new HttpForbiddenException();
+        }
+
+        URI attachmentFName = HttpUtils.receiveMultiPartFile(attach, tmpDir);
+
+        if (StringUtils.isBlank(attachmentFName.toString()) && img != null && img.length() > 10) {
+            try {
+                attachmentFName = HttpUtils.downloadImage(new URL(img), tmpDir);
+            } catch (Exception e) {
+                logger.error("DOWNLOAD ERROR", e);
+                throw new HttpBadRequestException();
+            }
+        }
+        if (StringUtils.isBlank(body) && StringUtils.isBlank(attachmentFName.toString())) {
+            // Should be there for compatibility
+            throw new HttpBadRequestException();
+        }
+        return commandsManager.processCommand(visitor, String.format("#%d/%d %s", mid, rid, body),
+                attachmentFName);
+    }
+
+    @PostMapping("/api/like")
+    @ResponseStatus(value = HttpStatus.OK)
+    public Status doPostRecomm(@Visitor User visitor, @RequestParam Integer mid) throws Exception {
+        Optional<Message> message = messagesService.getMessage(mid);
+        if (message.isEmpty()) {
+            throw new HttpNotFoundException();
+        }
+        Message msg = message.get();
+        if (msg.getUser().getUid() == visitor.getUid()) {
+            throw new HttpForbiddenException();
+        }
+        CommandResult status = commandsManager.processCommand(visitor, String.format("! #%d", mid),
+                URI.create(StringUtils.EMPTY));
+        return Status.getStatus(status.getText());
+    }
+
+    @PostMapping("/api/subscribe")
+    @ResponseStatus(value = HttpStatus.OK)
+    public Status doPostSubscribe(@Visitor User visitor,
+                                  @RequestParam Integer mid) throws Exception {
+        Optional<Message> message = messagesService.getMessage(mid);
+        if (message.isEmpty()) {
+            throw new HttpNotFoundException();
+        }
+        Message msg = message.get();
+        if (msg.getUser().getUid() == visitor.getUid()) {
+            throw new HttpForbiddenException();
+        }
+        CommandResult status = commandsManager.processCommand(visitor, String.format("S #%d", mid),
+                URI.create(StringUtils.EMPTY));
+        return Status.getStatus(status.getText());
+    }
+
+    @GetMapping("/api/reactions")
+    @ResponseStatus(value = HttpStatus.OK)
+    public List<Reaction> reactionsList() {
+        return messagesService.listReactions();
+    }
+
+    @PostMapping("/api/react")
+    @ResponseStatus(value = HttpStatus.OK)
+    public Status doPostReact(
+            @Visitor User visitor,
+            @RequestParam Integer mid, @RequestParam @NotNull int reactionId,
+            @RequestParam(required = false, defaultValue = "1") int count) {
+
+        logger.info("got reaction with type: {}", reactionId);
+        Optional<Message> message = messagesService.getMessage(mid);
+        if (message.isEmpty()) {
+            throw new HttpNotFoundException();
+        }
+        Message msg = message.get();
+        if (msg.getUser().getUid() == visitor.getUid()) {
+            throw new HttpForbiddenException();
+        }
+        MessagesService.RecommendStatus recommendStatus = MessagesService.RecommendStatus.Error;
+        for (int i = 0; i < count; i++)
+            recommendStatus = messagesService.likeMessage(mid, visitor.getUid(),
+                    reactionId);
+
+        return  recommendStatus ==  MessagesService.RecommendStatus.Error ? Status.ERROR :Status.OK;
+    }
+
+    @PostMapping("/api/update")
+    public CommandResult updateMessage(@Visitor User visitor,
+                                       @RequestParam Integer mid,
+                                       @RequestParam(required = false, defaultValue = "0") Integer rid,
+                                       @RequestParam String body) {
+        User author = rid == 0 ? messagesService.getMessageAuthor(mid) : messagesService.getReply(mid, rid).getUser();
+        if (visitor.equals(author)) {
+            if (messagesService.updateMessage(mid, rid, body)) {
+                Message result = rid == 0 ?
+                        messagesService.getMessage(mid).orElseThrow(IllegalStateException::new)
+                        : messagesService.getReply(mid, rid);
+                applicationEventPublisher.publishEvent(
+                        new UpdateEvent(this, author, activityPubManager.messageUri(mid, rid)));
+                return CommandResult.build(result, "Message updated", StringUtils.EMPTY);
+            }
+            throw new HttpBadRequestException();
+        }
+        throw new HttpForbiddenException();
+    }
+}
diff --git a/src/main/java/com/juick/www/api/Service.java b/src/main/java/com/juick/www/api/Service.java
new file mode 100644
index 00000000..cb918682
--- /dev/null
+++ b/src/main/java/com/juick/www/api/Service.java
@@ -0,0 +1,223 @@
+/*
+ * Copyright (C) 2008-2019, 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.juick.model.Message;
+import com.juick.model.User;
+import com.juick.model.CommandResult;
+import com.juick.server.CommandsManager;
+import com.juick.server.EmailManager;
+import com.juick.server.ServerManager;
+import com.juick.server.util.HttpBadRequestException;
+import com.juick.server.util.HttpForbiddenException;
+import com.juick.service.EmailService;
+import com.juick.service.MessagesService;
+import com.juick.service.UserService;
+import com.juick.service.component.AccountVerificationEvent;
+import com.juick.service.security.annotation.Visitor;
+import org.apache.commons.codec.digest.DigestUtils;
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.lang3.RandomStringUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.mail.util.MimeMessageParser;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.ApplicationEventPublisher;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.context.request.async.AsyncRequestTimeoutException;
+import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
+import springfox.documentation.annotations.ApiIgnore;
+
+import javax.inject.Inject;
+import javax.mail.Session;
+import javax.mail.internet.InternetAddress;
+import javax.mail.internet.MimeMessage;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URI;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Paths;
+import java.util.*;
+
+@Controller
+public class Service {
+    private static Logger logger = LoggerFactory.getLogger("Session");
+    @Inject
+    private UserService userService;
+    @Inject
+    private EmailService emailService;
+    @Inject
+    private MessagesService messagesService;
+    @Inject
+    private CommandsManager commandsManager;
+    @Inject
+    private ApplicationEventPublisher applicationEventPublisher;
+    @Value("${api_user:juick}")
+    private String serviceUser;
+    @Value("${upload_tmp_dir:#{systemEnvironment['TEMP'] ?: '/tmp'}}")
+    private String tmpDir;
+    @Value("${banned_emails:}")
+    private String[] ignoredEmails;
+    @Inject
+    private ServerManager serverManager;
+
+    private Session session = Session.getDefaultInstance(new Properties());
+
+    @ApiIgnore
+    @PostMapping("/api/mail")
+    @ResponseStatus(value = HttpStatus.OK)
+    public void processMail(@Visitor User current, InputStream data) throws Exception {
+        if (current.getName().equals(serviceUser)) {
+            MimeMessage msg = new MimeMessage(session, data);
+            String[] returnPaths = msg.getHeader("Return-Path");
+            if (returnPaths != null) {
+                logger.info("got msg with return path {}", returnPaths[0]);
+                if (returnPaths[0].equals("<>")) {
+                    return;
+                }
+            }
+            String from = msg.getFrom() == null || msg.getFrom().length > 1 ? ((InternetAddress) msg.getSender()).getAddress()
+                    : ((InternetAddress) msg.getFrom()[0]).getAddress();
+
+            User visitor = userService.getUserByEmail(from);
+            if (!visitor.isAnonymous()) {
+                MimeMessageParser parser = new MimeMessageParser(msg);
+                parser.parse();
+                final String[] body = {parser.getPlainContent()};
+                if (body[0] == null) {
+                    parser.getAttachmentList().stream()
+                            .filter(a -> a.getContentType().equals("text/plain")).findFirst()
+                            .ifPresent(a -> {
+                                try {
+                                    body[0] = IOUtils.toString(a.getInputStream(), StandardCharsets.UTF_8);
+                                    logger.info("got text: {}", body[0]);
+                                } catch (IOException e) {
+                                    logger.info("attachment error", e);
+                                }
+                            });
+                }
+                final String[] attachmentFName = new String[1];
+                parser.getAttachmentList().stream().filter(a ->
+                        a.getContentType().equals("image/jpeg") || a.getContentType().equals("image/png"))
+                        .findFirst().ifPresent(a -> {
+                    logger.info("got attachment: {}", a.getContentType());
+                    String attachmentType;
+                    if (a.getContentType().equals("image/jpeg")) {
+                        attachmentType = "jpg";
+                    } else {
+                        attachmentType = "png";
+                    }
+                    attachmentFName[0] = DigestUtils.md5Hex(UUID.randomUUID().toString()) + "." + attachmentType;
+                    try {
+                        logger.info("got inputstream: {}", a.getInputStream());
+                        FileOutputStream fos = new FileOutputStream(Paths.get(tmpDir, attachmentFName[0]).toString());
+                        IOUtils.copy(a.getInputStream(), fos);
+                        fos.close();
+                    } catch (IOException e) {
+                        logger.info("attachment error", e);
+                    }
+                });
+                String[] inReplyToHeaders = msg.getHeader("In-Reply-To");
+                if (inReplyToHeaders != null && inReplyToHeaders.length > 0) {
+                    int mid, rid;
+                    var originalMessage = messagesService.findMessageByProperty("messageId", inReplyToHeaders[0]);
+                    if (originalMessage.isPresent()) {
+                        mid = originalMessage.get().getLeft();
+                        rid = originalMessage.get().getRight();
+                    } else {
+                        Scanner inReplyToScanner = new Scanner(inReplyToHeaders[0].trim()).useDelimiter(EmailManager.MSGID_PATTERN);
+                        mid = Integer.parseInt(inReplyToScanner.next());
+                        rid = Integer.parseInt(inReplyToScanner.next());
+                    }
+                    logger.info("Message is reply to #{}/{}", mid, rid);
+                    body[0] = rid > 0 ? String.format("#%d/%d %s", mid, rid, body[0])
+                            : String.format("#%d %s", mid, body[0]);
+                }
+                URI attachmentUri = StringUtils.isNotEmpty(attachmentFName[0]) ? URI.create(String.format("juick://%s", attachmentFName[0]))
+                        : URI.create(StringUtils.EMPTY);
+                CommandResult result = commandsManager.processCommand(visitor, body[0], attachmentUri);
+                if (result.getNewMessage().isPresent()) {
+                    String[] messageIds = msg.getHeader("Message-Id");
+                    if (messageIds.length == 1) {
+                        Message message = result.getNewMessage().get();
+                        messagesService.setMessageProperty(message.getMid(), message.getRid(), "messageId", messageIds[0]);
+                    } else {
+                        logger.warn("Wrong number of Message-Id headers");
+                    }
+                }
+            } else {
+                if (!Arrays.asList(ignoredEmails).contains(from)) {
+                    String verificationCode = RandomStringUtils.randomAlphanumeric(8).toUpperCase();
+                    emailService.addVerificationCode(null, from, verificationCode);
+                    applicationEventPublisher.publishEvent(new AccountVerificationEvent(this, from, verificationCode));
+                }
+            }
+        } else {
+            throw new HttpForbiddenException();
+        }
+    }
+    @ApiIgnore
+    @PostMapping("/api/mail/unsubscribe")
+    @ResponseStatus(value = HttpStatus.OK)
+    public void processMailUnsubscribe(@Visitor User current, InputStream data) throws Exception {
+        if (current.getName().equals(serviceUser)) {
+            MimeMessage msg = new MimeMessage(session, data);
+            String from = msg.getFrom() == null || msg.getFrom().length > 1 ? ((InternetAddress) msg.getSender()).getAddress()
+                    : ((InternetAddress) msg.getFrom()[0]).getAddress();
+
+            User visitor = userService.getUserByEmail(from);
+            if (!visitor.isAnonymous()) {
+                if (!emailService.disableEmail(visitor, from)) {
+                    throw new HttpBadRequestException();
+                }
+            }
+        } else {
+            throw new HttpForbiddenException();
+        }
+    }
+    private void endSession(SseEmitter emitter) {
+        serverManager.getSessions().stream()
+                .filter(s -> s.getEmitter().equals(emitter))
+                .forEach(session -> serverManager.getSessions().remove(session));
+    }
+    @GetMapping("/api/events")
+    public SseEmitter handle(@Visitor User visitor) throws IOException {
+        logger.info("{} connected", visitor.getName());
+        if (!visitor.isAnonymous()) {
+            userService.updateLastSeen(visitor);
+        }
+        SseEmitter emitter = new SseEmitter(600000L);
+        serverManager.getSessions().add(new ServerManager.EventSession(visitor, emitter));
+
+        emitter.onCompletion(() -> endSession(emitter));
+        emitter.onTimeout(() -> endSession(emitter));
+
+        return emitter;
+    }
+    @ExceptionHandler(AsyncRequestTimeoutException.class)
+    public void eventErrorHandler(Exception ex) {
+        logger.debug("SSE timeout", ex);
+    }
+}
diff --git a/src/main/java/com/juick/www/api/SystemActivity.java b/src/main/java/com/juick/www/api/SystemActivity.java
new file mode 100644
index 00000000..0827537a
--- /dev/null
+++ b/src/main/java/com/juick/www/api/SystemActivity.java
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2008-2019, 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.juick.model.Message;
+import com.juick.model.User;
+
+import java.util.Collections;
+import java.util.List;
+
+public class SystemActivity {
+    public static SystemActivity like(User from, Message message, List<User> subscribers) {
+        var like = new SystemActivity();
+        like.setType(ActivityType.like);
+        like.setFrom(from);
+        like.setMessage(message);
+        like.setTo(subscribers);
+        return like;
+    }
+
+    public static SystemActivity message(User from, Message message, List<User> subscribers) {
+        var msg = new SystemActivity();
+        msg.setType(ActivityType.message);
+        msg.setFrom(from);
+        msg.setMessage(message);
+        msg.setTo(subscribers);
+        return msg;
+    }
+
+    public static SystemActivity read(User from, Message message) {
+        var read = new SystemActivity();
+        read.setType(ActivityType.message);
+        read.setFrom(from);
+        read.setTo(Collections.emptyList());
+        var msg = new Message();
+        msg.setMid(message.getMid());
+        msg.setUser(from);
+        msg.setService(true);
+        msg.setUnread(false);
+        read.setMessage(msg);
+        return read;
+    }
+
+    public static SystemActivity follow(User from, List<User> to) {
+        var follow = new SystemActivity();
+        follow.setFrom(from);
+        follow.setTo(to);
+        return follow;
+    }
+
+    public enum ActivityType {
+        message,
+        like,
+        follow
+    }
+
+    private ActivityType type;
+    private User from;
+    private List<User> to;
+    private Message message;
+
+    public ActivityType getType() {
+        return type;
+    }
+
+    public void setType(ActivityType type) {
+        this.type = type;
+    }
+
+    public User getFrom() {
+        return from;
+    }
+
+    public void setFrom(User from) {
+        this.from = from;
+    }
+
+    public List<User> getTo() {
+        return to;
+    }
+
+    public void setTo(List<User> to) {
+        this.to = to;
+    }
+
+    public Message getMessage() {
+        return message;
+    }
+
+    public void setMessage(Message message) {
+        this.message = message;
+    }
+}
diff --git a/src/main/java/com/juick/www/api/Tags.java b/src/main/java/com/juick/www/api/Tags.java
new file mode 100644
index 00000000..b50e9bd5
--- /dev/null
+++ b/src/main/java/com/juick/www/api/Tags.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2008-2019, 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.juick.model.User;
+import com.juick.model.TagStats;
+import com.juick.service.TagService;
+import com.juick.service.security.annotation.Visitor;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.inject.Inject;
+import java.util.List;
+
+/**
+ * Created by vitalyster on 29.11.2016.
+ */
+@RestController
+public class Tags {
+    @Inject
+    private TagService tagService;
+
+    @RequestMapping(value = "/api/tags", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
+    public List<TagStats> tags(
+            @Visitor User visitor,
+            @RequestParam(required = false, defaultValue = "0") int user_id
+    ) {
+        if (user_id == 0) {
+            user_id = visitor.getUid();
+        }
+        if (user_id > 0) {
+            return tagService.getUserTagStats(user_id);
+        }
+        return tagService.getTagStats();
+    }
+}
diff --git a/src/main/java/com/juick/www/api/Users.java b/src/main/java/com/juick/www/api/Users.java
new file mode 100644
index 00000000..06467b7d
--- /dev/null
+++ b/src/main/java/com/juick/www/api/Users.java
@@ -0,0 +1,279 @@
+/*
+ * Copyright (C) 2008-2019, 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.juick.model.User;
+import com.juick.model.AnonymousUser;
+import com.juick.model.ApplicationStatus;
+import com.juick.server.util.HttpBadRequestException;
+import com.juick.server.util.HttpNotFoundException;
+import com.juick.server.util.HttpUtils;
+import com.juick.server.util.WebUtils;
+import com.juick.www.WebApp;
+import com.juick.service.*;
+import com.juick.service.component.MailVerificationEvent;
+import com.juick.service.security.annotation.Visitor;
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.lang3.RandomStringUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.ApplicationEventPublisher;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.multipart.MultipartFile;
+
+import javax.inject.Inject;
+import java.io.IOException;
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * @author ugnich
+ */
+@RestController
+public class Users {
+    @Inject
+    private UserService userService;
+    @Inject
+    private MessagesService messagesService;
+    @Inject
+    private CrosspostService crosspostService;
+    @Inject
+    private TelegramService telegramService;
+    @Inject
+    private EmailService emailService;
+    @Inject
+    private TagService tagService;
+    @Inject
+    private WebApp webApp;
+    @Inject
+    private ImagesService imagesService;
+    @Value("${upload_tmp_dir:#{systemEnvironment['TEMP'] ?: '/tmp'}}")
+    private String tmpDir;
+    @Inject
+    private ApplicationEventPublisher applicationEventPublisher;
+
+    @RequestMapping(value = "/api/auth", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
+    public String getAuthToken(@Visitor User visitor) {
+        return userService.getHashByUID(visitor.getUid());
+    }
+
+    @RequestMapping(value = "/api/users", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
+    public List<User> doGetUsers(
+            @Visitor User visitor,
+            @RequestParam(value = "uname", required = false) List<String> unames) {
+        List<User> users = new ArrayList<>();
+
+        if (unames != null) {
+            unames.removeIf(WebUtils::isNotUserName);
+
+            if (!unames.isEmpty() && unames.size() < 20)
+                users.addAll(userService.getUsersByName(unames));
+        }
+        users.forEach(u -> u.setAvatar(webApp.getAvatarUrl(u)));
+        if (!users.isEmpty())
+            return users;
+        if (!visitor.isAnonymous()) {
+            visitor.setAvatar(webApp.getAvatarUrl(visitor));
+            return Collections.singletonList(visitor);
+        }
+
+        throw new HttpNotFoundException();
+    }
+
+    @GetMapping("/api/me")
+    public SecureUser getMe(@Visitor User visitor) {
+        SecureUser me = new SecureUser();
+        me.setUid(visitor.getUid());
+        me.setName(visitor.getName());
+        me.setAuthHash(getAuthToken(visitor));
+        List<Integer> unread = messagesService.getUnread(visitor);
+        me.setUnread(unread);
+        me.setUnreadCount(unread.size());
+        var friends = userService.getUserFriends(visitor.getUid());
+        friends.forEach(r -> r.setAvatar(webApp.getAvatarUrl(r)));
+        me.setRead(friends);
+        var readers = userService.getUserReaders(visitor.getUid());
+        readers.forEach(r -> r.setAvatar(webApp.getAvatarUrl(r)));
+        me.setReaders(readers);
+        me.setAvatar(webApp.getAvatarUrl(visitor));
+        me.getTagStats().addAll(tagService.getUserTagStats(me.getUid()));
+        return (SecureUser)userService.getUserInfo(me);
+    }
+    @PostMapping("/api/me")
+    public ResponseEntity<Void> updateMe(@Visitor User visitor,
+                                         @RequestParam(required = false) String password,
+                                         @RequestParam(value = "jid-del", required = false) String jidForDeletion,
+                                         @RequestParam(value = "email-add", required = false) String newEmail,
+                                         @RequestParam(value = "email-del", required = false) String emailForDeletion,
+                                         @RequestParam(value = "account-del", required = false) String accountToDelete) {
+        if (StringUtils.isNotEmpty(password)) {
+            if (!userService.updatePassword(visitor, password)) {
+                throw new HttpBadRequestException();
+            }
+        }
+        if (StringUtils.isNotEmpty(jidForDeletion)) {
+            if (!userService.deleteJID(visitor.getUid(), jidForDeletion)) {
+                throw new HttpBadRequestException();
+            }
+        }
+        if (StringUtils.isNotEmpty(newEmail)) {
+            if (!emailService.verifyAddressByCode(visitor.getUid(), newEmail)) {
+                String authCode = RandomStringUtils.randomAlphanumeric(8).toUpperCase();
+                if (emailService.addVerificationCode(visitor.getUid(), newEmail, authCode)) {
+                    applicationEventPublisher.publishEvent(new MailVerificationEvent(this, newEmail , authCode));
+                }
+            }
+        }
+        if (StringUtils.isNotEmpty(emailForDeletion)) {
+            if (!emailService.deleteEmail(visitor.getUid(), emailForDeletion)) {
+                throw new HttpBadRequestException();
+            }
+        }
+        if (StringUtils.isNotEmpty(accountToDelete)) {
+            switch (accountToDelete) {
+                case "twitter":
+                    crosspostService.deleteTwitterToken(visitor.getUid());
+                    break;
+                case "vk":
+                    crosspostService.deleteVKUser(visitor.getUid());
+                    break;
+                case "durov":
+                    telegramService.deleteTelegramUser(visitor.getUid());
+                    break;
+            }
+        }
+        return ResponseEntity.ok().build();
+    }
+    @PostMapping("/api/me/subscribe")
+    public ResponseEntity<Void> subscribeMe(@Visitor User visitor, String email) {
+        // TODO: check status
+        emailService.setNotificationsEmail(visitor.getUid(), email);
+        return ResponseEntity.ok().build();
+    }
+    @PostMapping("/api/me/upload")
+    public void updateInfo(@Visitor User visitor,
+                           @RequestParam MultipartFile avatar) throws IOException {
+        String avatarTmpPath = HttpUtils.receiveMultiPartFile(avatar, tmpDir).getHost();
+        if (StringUtils.isNotEmpty(avatarTmpPath)) {
+            imagesService.saveAvatar(avatarTmpPath, visitor.getUid());
+        }
+    }
+
+    @RequestMapping(value = "/api/users/read", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
+    public List<User> doGetUserRead(
+            @Visitor User visitor,
+            @RequestParam String uname) {
+        int uid = 0;
+        if (uname == null) {
+            uid = visitor.getUid();
+        } else {
+            if (WebUtils.isUserName(uname)) {
+                User u = userService.getUserByName(uname);
+                if (!u.isAnonymous()) {
+                    uid = u.getUid();
+                }
+            }
+        }
+
+        if (uid > 0) {
+            List<User> friends = userService.getUserFriends(uid);
+            friends.forEach(f -> f.setAvatar(webApp.getAvatarUrl(f)));
+            return friends;
+        }
+        throw new HttpNotFoundException();
+    }
+
+    @RequestMapping(value = "/api/users/readers", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
+    public List<User> doGetUserReaders(
+            @Visitor User visitor,
+            @RequestParam String uname) {
+        int uid = 0;
+        if (uname == null) {
+            uid = visitor.getUid();
+        } else {
+            if (WebUtils.isUserName(uname)) {
+                User u = userService.getUserByName(uname);
+                if (!u.isAnonymous()) {
+                    uid = u.getUid();
+                }
+            }
+        }
+
+        if (uid > 0) {
+            List<User> readers = userService.getUserReaders(uid);
+            readers.forEach(r -> r.setAvatar(webApp.getAvatarUrl(r)));
+            return readers;
+        }
+        throw new HttpNotFoundException();
+    }
+
+    @GetMapping("/api/info/{uname}")
+    public User getUserInfo(@Visitor User visitor, @PathVariable String uname) {
+        User user = userService.getUserByName(uname);
+        if (!user.isBanned()) {
+            user.setRead(doGetUserRead(visitor, uname));
+            user.setReaders(doGetUserReaders(visitor, uname));
+            user.setAvatar(webApp.getAvatarUrl(user));
+            return userService.getUserInfo(user);
+        }
+        throw new HttpNotFoundException();
+    }
+
+    @Deprecated
+    @GetMapping(value = "/api/avatar", produces = MediaType.IMAGE_PNG_VALUE)
+    public byte[] getAvatarUrl(
+            @RequestParam(required = false) String uname,
+            @RequestParam(required = false) String jid)
+            throws IOException {
+        User user = AnonymousUser.INSTANCE;
+        if (StringUtils.isNotEmpty(uname)) {
+            user = userService.getUserByName(uname);
+        }
+        if (user.isAnonymous() && StringUtils.isNotEmpty(jid)) {
+            user = userService.getUserByJID(jid);
+        }
+        return IOUtils.toByteArray(URI.create(webApp.getAvatarUrl(user)));
+    }
+    public class SecureUser extends User {
+        public String getHash() {
+            return getAuthHash();
+        }
+        public List<String> getJIDs() {
+            return userService.getAllJIDs(this);
+        }
+        public List<String> getEmails() {
+            return userService.getEmails(this);
+        }
+        public String getActiveEmail() {
+            return emailService.getNotificationsEmail(this.getUid());
+        }
+        public String getTwitterName() {
+            return crosspostService.getTwitterName(this.getUid());
+        }
+        public String getTelegramName() {
+            return crosspostService.getTelegramName(this.getUid());
+        }
+        public ApplicationStatus getFacebookStatus() {
+            return crosspostService.getFbCrossPostStatus(this.getUid());
+        }
+    }
+}
diff --git a/src/main/java/com/juick/www/api/activity/Profile.java b/src/main/java/com/juick/www/api/activity/Profile.java
new file mode 100644
index 00000000..bdd7cab2
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/Profile.java
@@ -0,0 +1,410 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.juick.model.Message;
+import com.juick.model.User;
+import com.juick.formatters.PlainTextFormatter;
+import com.juick.model.CommandResult;
+import com.juick.server.ActivityPubManager;
+import com.juick.server.CommandsManager;
+import com.juick.server.KeystoreManager;
+import com.juick.server.SignatureManager;
+import com.juick.www.api.activity.model.Activity;
+import com.juick.www.api.activity.model.Context;
+import com.juick.www.api.activity.model.activities.Announce;
+import com.juick.www.api.activity.model.activities.Create;
+import com.juick.www.api.activity.model.activities.Delete;
+import com.juick.www.api.activity.model.activities.Follow;
+import com.juick.www.api.activity.model.activities.Like;
+import com.juick.www.api.activity.model.activities.Undo;
+import com.juick.www.api.activity.model.objects.Image;
+import com.juick.www.api.activity.model.objects.Key;
+import com.juick.www.api.activity.model.objects.Note;
+import com.juick.www.api.activity.model.objects.OrderedCollection;
+import com.juick.www.api.activity.model.objects.OrderedCollectionPage;
+import com.juick.www.api.activity.model.objects.Person;
+import com.juick.server.util.HttpNotFoundException;
+import com.juick.www.WebApp;
+import com.juick.service.MessagesService;
+import com.juick.service.UserService;
+import com.juick.service.activities.AnnounceEvent;
+import com.juick.service.activities.FollowEvent;
+import com.juick.service.activities.UndoAnnounceEvent;
+import com.juick.service.activities.UndoFollowEvent;
+import com.juick.service.security.annotation.Visitor;
+import com.overzealous.remark.Remark;
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.ApplicationEventPublisher;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.servlet.support.ServletUriComponentsBuilder;
+import org.springframework.web.util.UriComponentsBuilder;
+
+import javax.inject.Inject;
+import java.io.InputStream;
+import java.net.URI;
+import java.nio.charset.StandardCharsets;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+@RestController
+public class Profile {
+    private static final Logger logger = LoggerFactory.getLogger("ActivityPub");
+    @Inject
+    private UserService userService;
+    @Inject
+    private MessagesService messagesService;
+    @Inject
+    private KeystoreManager keystoreManager;
+    @Inject
+    private SignatureManager signatureManager;
+    @Inject
+    private ActivityPubManager activityPubManager;
+    @Inject
+    private ApplicationEventPublisher applicationEventPublisher;
+    @Inject
+    private CommandsManager commandsManager;
+    @Value("${web_domain:localhost}")
+    private String domain;
+    @Value("${ap_base_uri:http://localhost:8080/}")
+    private String baseUri;
+    @Inject
+    private ObjectMapper jsonMapper;
+    @Inject
+    private WebApp webApp;
+    @Inject
+    private Remark remarkConverter;
+
+    @GetMapping(value = "/u/{userName}", produces = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITYSTREAMS_PROFILE_MEDIA_TYPE})
+    public Person getUser(@PathVariable String userName) {
+        User user = userService.getUserByName(userName);
+        if (!user.isAnonymous()) {
+            Person person = new Person();
+            person.setId(activityPubManager.personUri(user));
+            person.setUrl(activityPubManager.personWebUri(user));
+            person.setName(userName);
+            person.setPreferredUsername(userName);
+            Key publicKey = new Key();
+            publicKey.setId(person.getId() + "#main-key");
+            publicKey.setOwner(person.getId());
+            publicKey.setPublicKeyPem(keystoreManager.getPublicKeyPem());
+            person.setPublicKey(publicKey);
+            person.setInbox(activityPubManager.inboxUri());
+            person.setOutbox(activityPubManager.outboxUri(user));
+            person.setFollowers(activityPubManager.followersUri(user));
+            person.setFollowing(activityPubManager.followingUri(user));
+            Image avatar = new Image();
+            avatar.setUrl(webApp.getAvatarUrl(user));
+            avatar.setMediaType("image/png");
+            person.setIcon(avatar);
+            return (Person) Context.build(person);
+        }
+        throw new HttpNotFoundException();
+    }
+
+    @GetMapping(value = "/u/{userName}/blog/toc", produces = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITYSTREAMS_PROFILE_MEDIA_TYPE})
+    public OrderedCollection getOutbox(@PathVariable String userName) {
+        User user = userService.getUserByName(userName);
+        if (!user.isAnonymous()) {
+            UriComponentsBuilder uriComponentsBuilder = UriComponentsBuilder.fromUriString(baseUri);
+            OrderedCollection blog = new OrderedCollection();
+            blog.setId(ServletUriComponentsBuilder.fromCurrentRequestUri().toUriString());
+            blog.setTotalItems(userService.getStatsMessages(user.getUid()));
+            blog.setFirst(uriComponentsBuilder.path(String.format("/u/%s/blog", userName)).toUriString());
+            return (OrderedCollection) Context.build(blog);
+        }
+        throw new HttpNotFoundException();
+    }
+
+    @GetMapping(value = "/u/{userName}/blog", produces = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITYSTREAMS_PROFILE_MEDIA_TYPE})
+    public OrderedCollectionPage getOutboxPage(@Visitor User visitor, @PathVariable String userName,
+                                               @RequestParam(required = false, defaultValue = "0") int before) {
+        User user = userService.getUserByName(userName);
+        if (!user.isAnonymous() && !user.isBanned()) {
+            UriComponentsBuilder uri = UriComponentsBuilder.fromUriString(baseUri);
+            String personUri = uri.path(String.format("/u/%s", userName)).toUriString();
+            List<Integer> mids = messagesService.getUserBlog(user.getUid(), 0, before);
+            List<Note> notes = messagesService.getMessages(visitor, mids)
+                    .stream().map(activityPubManager::makeNote).collect(Collectors.toList());
+            OrderedCollectionPage page = new OrderedCollectionPage();
+            page.setPartOf(uri.replacePath(String.format("/u/%s/blog/toc", userName)).toUriString());
+            page.setFirst(uri.replacePath(String.format("/u/%s/blog", userName)).toUriString());
+            page.setId(ServletUriComponentsBuilder.fromCurrentRequestUri().toUriString());
+            page.setOrderedItems(notes.stream().map(a -> {
+                Create create = new Create();
+                create.setId(a.getId() + "#Create");
+                create.setTo(a.getTo());
+                create.setActor(personUri);
+                create.setObject(a);
+                create.setPublished(a.getPublished());
+                return create;
+            }).collect(Collectors.toList()));
+            int beforeNext = mids.stream().reduce((fst, second) -> second).orElse(0);
+            if (beforeNext > 0) {
+                page.setNext(uri.queryParam("before", beforeNext).toUriString());
+            }
+            page.setLast(uri.replaceQueryParam("before", "1").toUriString());
+            return (OrderedCollectionPage) Context.build(page);
+        }
+        throw new HttpNotFoundException();
+    }
+
+    @GetMapping(value = "/u/{userName}/followers/toc", produces = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITYSTREAMS_PROFILE_MEDIA_TYPE})
+    public OrderedCollection getFollowers(@PathVariable String userName) {
+        User user = userService.getUserByName(userName);
+        if (!user.isAnonymous()) {
+            UriComponentsBuilder uriComponentsBuilder = UriComponentsBuilder.fromUriString(baseUri);
+            OrderedCollection followers = new OrderedCollection();
+            followers.setId(ServletUriComponentsBuilder.fromCurrentRequestUri().toUriString());
+            followers.setTotalItems(userService.getStatsMyReaders(user.getUid()));
+            followers.setFirst(uriComponentsBuilder.path(String.format("/u/%s/followers", userName)).toUriString());
+            return (OrderedCollection) Context.build(followers);
+        }
+        throw new HttpNotFoundException();
+    }
+
+    @GetMapping(value = "/u/{userName}/followers", produces = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITYSTREAMS_PROFILE_MEDIA_TYPE})
+    public OrderedCollectionPage getFollowersPage(@PathVariable String userName,
+                                                  @RequestParam(required = false, defaultValue = "0") int page) {
+        User user = userService.getUserByName(userName);
+        if (!user.isAnonymous()) {
+            UriComponentsBuilder uriComponentsBuilder = UriComponentsBuilder.fromUriString(baseUri);
+            uriComponentsBuilder.path(String.format("/u/%s/followers", userName));
+            List<User> followers = userService.getUserReaders(user.getUid());
+            Stream<User> followersPage = followers.stream().skip(20 * page).limit(20);
+
+            OrderedCollectionPage result = new OrderedCollectionPage();
+            result.setId(ServletUriComponentsBuilder.fromCurrentRequestUri().toUriString());
+            result.setOrderedItems(followersPage.map(a -> {
+                Person follower = new Person();
+                follower.setName(a.getName());
+                follower.setPreferredUsername(a.getName());
+                follower.setUrl(activityPubManager.personWebUri(a));
+                return follower;
+            }).collect(Collectors.toList()));
+            boolean hasNext = followers.size() <= 20 * page;
+            if (hasNext) {
+                result.setNext(uriComponentsBuilder.queryParam("page", page + 1).toUriString());
+            }
+            return (OrderedCollectionPage) Context.build(result);
+        }
+        throw new HttpNotFoundException();
+    }
+
+    @GetMapping(value = "/u/{userName}/following/toc", produces = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITYSTREAMS_PROFILE_MEDIA_TYPE})
+    public OrderedCollection getFollowing(@PathVariable String userName) {
+        User user = userService.getUserByName(userName);
+        if (!user.isAnonymous()) {
+            UriComponentsBuilder uriComponentsBuilder = UriComponentsBuilder.fromUriString(baseUri);
+            OrderedCollection following = new OrderedCollection();
+            following.setId(ServletUriComponentsBuilder.fromCurrentRequestUri().toUriString());
+            following.setTotalItems(userService.getUserFriends(user.getUid()).size());
+            following.setFirst(uriComponentsBuilder.path(String.format("/u/%s/followers", userName)).toUriString());
+            return (OrderedCollection) Context.build(following);
+        }
+        throw new HttpNotFoundException();
+    }
+
+    @GetMapping(value = "/u/{userName}/following", produces = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITYSTREAMS_PROFILE_MEDIA_TYPE})
+    public OrderedCollectionPage getFollowingPage(@PathVariable String userName,
+                                                  @RequestParam(required = false, defaultValue = "0") int page) {
+        User user = userService.getUserByName(userName);
+        if (!user.isAnonymous()) {
+            UriComponentsBuilder uriComponentsBuilder = UriComponentsBuilder.fromUriString(baseUri);
+            uriComponentsBuilder.path(String.format("/u/%s/following", userName));
+            List<User> following = userService.getUserFriends(user.getUid());
+            Stream<User> followingPage = following.stream().skip(20 * page).limit(20);
+
+            OrderedCollectionPage result = new OrderedCollectionPage();
+            result.setId(ServletUriComponentsBuilder.fromCurrentRequestUri().toUriString());
+            result.setOrderedItems(followingPage.map(a -> {
+                Person follower = new Person();
+                follower.setName(a.getName());
+                follower.setPreferredUsername(a.getName());
+                follower.setUrl(activityPubManager.personWebUri(a));
+                return follower;
+            }).collect(Collectors.toList()));
+            boolean hasNext = following.size() <= 20 * page;
+            if (hasNext) {
+                result.setNext(uriComponentsBuilder.queryParam("page", page + 1).toUriString());
+            }
+            return (OrderedCollectionPage) Context.build(result);
+        }
+        throw new HttpNotFoundException();
+    }
+
+    @GetMapping(value = "/n/{mid}-{rid}", produces = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITYSTREAMS_PROFILE_MEDIA_TYPE})
+    public Context showNote(@PathVariable int mid, @PathVariable int rid) {
+        if (rid > 0) {
+            // reply
+            return Context.build(activityPubManager.makeNote(
+                    messagesService.getReply(mid, rid)));
+        }
+        return Context.build(activityPubManager.makeNote(
+                messagesService.getMessage(mid).orElseThrow(IllegalStateException::new)));
+    }
+
+    @PostMapping(value = "/api/inbox", consumes = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITYSTREAMS_PROFILE_MEDIA_TYPE})
+    public ResponseEntity<CommandResult> processInbox(
+            @Visitor User visitor,
+            InputStream inboxData) throws Exception {
+        String inbox = IOUtils.toString(inboxData, StandardCharsets.UTF_8);
+        logger.info("Inbox: {}", inbox);
+        Activity activity = jsonMapper.readValue(inbox, Activity.class);
+        if ((StringUtils.isNotEmpty(visitor.getUri().toString())
+                && visitor.getUri().equals(URI.create(activity.getActor())))
+                || !visitor.isAnonymous()) {
+            if (activity instanceof Follow) {
+                Follow followRequest = (Follow) activity;
+                applicationEventPublisher.publishEvent(
+                        new FollowEvent(this, followRequest));
+                return new ResponseEntity<>(CommandResult.fromString("Follow request accepted"), HttpStatus.ACCEPTED);
+
+            }
+            if (activity instanceof Undo) {
+                Map object = (Map) activity.getObject();
+                String objectType = (String) object.get("type");
+                String objectObject = (String) object.get("object");
+                if (objectType.equals("Follow")) {
+                    applicationEventPublisher.publishEvent(new UndoFollowEvent(this, activity.getActor(), objectObject));
+                    return new ResponseEntity<>(CommandResult.fromString("Undo follow request accepted"), HttpStatus.OK);
+                } else if (objectType.equals("Like") || objectType.equals("Announce")) {
+                    applicationEventPublisher.publishEvent(new UndoAnnounceEvent(this, activity.getActor(), objectObject));
+                    return new ResponseEntity<>(CommandResult.fromString("Undo like/announce request accepted"), HttpStatus.OK);
+                }
+            }
+            if (activity instanceof Create) {
+                if (activity.getObject() instanceof Map) {
+                    Map<String, Object> note = (Map<String, Object>) activity.getObject();
+                    if (note.get("type").equals("Note")) {
+                        URI noteId = URI.create((String) note.get("id"));
+                        if (messagesService.replyExists(noteId)) {
+                            return new ResponseEntity<>(CommandResult.fromString("Reply already exists"), HttpStatus.OK);
+                        } else {
+                            String inReplyTo = (String) note.get("inReplyTo");
+                            if (StringUtils.isNotBlank(inReplyTo)) {
+                                if (inReplyTo.startsWith(baseUri)) {
+                                    String postId = activityPubManager.postId(inReplyTo);
+                                    User user = new User();
+                                    user.setUri(URI.create(activity.getActor()));
+                                    String markdown = remarkConverter.convertFragment((String) note.get("content"));
+                                    String commandBody = note.get("attachment") == null ? markdown :
+                                            ((List<Object>) note.get("attachment")).stream().map(attachmentObj -> {
+                                                Map<String, String> attachment = (Map<String, String>) attachmentObj;
+                                                String attachmentUrl = attachment.get("url");
+                                                String attachmentName = attachment.get("name");
+                                                return PlainTextFormatter.markdownUrl(attachmentUrl, attachmentName);
+                                            }).reduce(markdown, (currentUrl, nextUrl) -> String.format("%s\n%s", currentUrl, nextUrl));
+
+                                    CommandResult result = commandsManager.processCommand(
+                                            user, String.format("#%s %s", postId, commandBody),
+                                            URI.create(StringUtils.EMPTY));
+                                    logger.info(jsonMapper.writeValueAsString(result));
+                                    if (result.getNewMessage().isPresent()) {
+                                        messagesService.updateReplyUri(result.getNewMessage().get(), noteId);
+                                        return new ResponseEntity<>(result, HttpStatus.OK);
+                                    } else {
+                                        return new ResponseEntity<>(result, HttpStatus.BAD_REQUEST);
+                                    }
+                                } else {
+                                    Message reply = messagesService.getReplyByUri(inReplyTo);
+                                    if (reply != null) {
+                                        User user = new User();
+                                        user.setUri(URI.create(activity.getActor()));
+                                        String markdown = remarkConverter.convertFragment((String)note.get("content"));
+                                        // combine note text with attachment urls
+                                        String commandBody = note.get("attachment") == null ? markdown :
+                                                ((List<Object>) note.get("attachment")).stream().map(attachmentObj -> {
+                                                    Map<String, String> attachment = (Map<String, String>) attachmentObj;
+                                                    String attachmentUrl = attachment.get("url");
+                                                    String attachmentName = attachment.get("name");
+                                                    return PlainTextFormatter.markdownUrl(attachmentUrl, attachmentName);
+                                                }).reduce(markdown, (currentUrl, nextUrl) -> String.format("%s\n%s", currentUrl, nextUrl));
+                                        CommandResult result = commandsManager.processCommand(
+                                                user,
+                                                String.format("#%d/%d %s", reply.getMid(), reply.getRid(), commandBody),
+                                                URI.create(StringUtils.EMPTY));
+                                        logger.info(jsonMapper.writeValueAsString(result));
+                                        if (result.getNewMessage().isPresent()) {
+                                            messagesService.updateReplyUri(result.getNewMessage().get(), noteId);
+                                            return new ResponseEntity<>(result, HttpStatus.OK);
+                                        } else {
+                                            return new ResponseEntity<>(result, HttpStatus.BAD_REQUEST);
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+            if (activity instanceof Delete) {
+                if (activity.getObject() instanceof String) {
+                    // Delete gone user
+                    // TODO: check if it is really deleted and remove copy-paste
+                    if (activity.getActor().equals(activity.getObject())) {
+                        return new ResponseEntity<>(CommandResult.fromString("Delete request accepted"), HttpStatus.ACCEPTED);
+                    }
+                }
+                Map<String, Object> tombstone = (Map<String, Object>) activity.getObject();
+                if (tombstone.get("type").equals("Tombstone")) {
+                    URI actor = URI.create(activity.getActor());
+                    URI reply = URI.create((String)tombstone.get("id"));
+                    messagesService.deleteReply(actor, reply);
+                    return new ResponseEntity<>(CommandResult.fromString("Delete request accepted"), HttpStatus.OK);
+                }
+            }
+            if (activity instanceof Like || activity instanceof Announce) {
+                String messageUri = activity.getObject() instanceof String ? (String) activity.getObject()
+                        : activity.getObject() instanceof Context ? ((Context) activity.getObject()).getId()
+                        : (String) ((Map)activity.getObject()).get("id");
+                applicationEventPublisher.publishEvent(new AnnounceEvent(this, activity.getActor(), messageUri));
+                return new ResponseEntity<>(CommandResult.fromString("Like/announce request accepted"), HttpStatus.OK);
+            }
+            logger.warn("Unknown activity: {}", jsonMapper.writeValueAsString(activity));
+            return new ResponseEntity<>(CommandResult.fromString("Unknown activity"), HttpStatus.NOT_IMPLEMENTED);
+        }
+        if (activity instanceof Delete) {
+            if (activity.getObject() instanceof String) {
+                // Delete gone user
+                if (activity.getActor().equals(activity.getObject())) {
+                    return new ResponseEntity<>(CommandResult.fromString("Delete request accepted"), HttpStatus.ACCEPTED);
+                }
+            }
+        }
+        return new ResponseEntity<>(CommandResult.fromString("Can not authenticate"), HttpStatus.UNAUTHORIZED);
+    }
+    @PostMapping(value = "/u/", produces = MediaType.APPLICATION_JSON_VALUE)
+    public User fetchUser(@RequestParam URI uri) {
+        return activityPubManager.personToUser(uri);
+    }
+}
diff --git a/src/main/java/com/juick/www/api/activity/helpers/ActivityIdDeserializer.java b/src/main/java/com/juick/www/api/activity/helpers/ActivityIdDeserializer.java
new file mode 100644
index 00000000..e349bff7
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/helpers/ActivityIdDeserializer.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.helpers;
+
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.JsonToken;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.JsonDeserializer;
+import com.fasterxml.jackson.databind.JsonNode;
+
+import java.io.IOException;
+
+public class ActivityIdDeserializer extends JsonDeserializer<String> {
+    @Override
+    public String deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
+        JsonToken jsonToken = p.getCurrentToken();
+        if (jsonToken == JsonToken.START_OBJECT) {
+            JsonNode node = p.getCodec().readTree(p);
+            return node.get("id").textValue();
+        }
+        return p.getValueAsString();
+    }
+}
diff --git a/src/main/java/com/juick/www/api/activity/helpers/LinkValueDeserializer.java b/src/main/java/com/juick/www/api/activity/helpers/LinkValueDeserializer.java
new file mode 100644
index 00000000..ab797f6c
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/helpers/LinkValueDeserializer.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.helpers;
+
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.JsonToken;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.JsonDeserializer;
+import com.fasterxml.jackson.databind.JsonNode;
+
+import java.io.IOException;
+
+public class LinkValueDeserializer extends JsonDeserializer<String> {
+    @Override
+    public String deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
+        JsonToken jsonToken = p.getCurrentToken();
+        if (jsonToken == JsonToken.VALUE_STRING) {
+            return p.getValueAsString();
+        }
+        JsonNode node = p.getCodec().readTree(p);
+        return node.get("href").textValue();
+    }
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/Activity.java b/src/main/java/com/juick/www/api/activity/model/Activity.java
new file mode 100644
index 00000000..2ac22349
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/Activity.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model;
+
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
+import com.juick.www.api.activity.helpers.ActivityIdDeserializer;
+import org.apache.commons.lang3.StringUtils;
+
+import java.util.UUID;
+
+public abstract class Activity extends Context {
+
+    @JsonDeserialize(using = ActivityIdDeserializer.class)
+    private String actor;
+    private Object object;
+
+    public String getActor() {
+        return actor;
+    }
+
+    public void setActor(String actor) {
+        this.actor = actor;
+        if (StringUtils.isEmpty(getId())) {
+            setId(String.format("%s#%s", this.actor, UUID.randomUUID().toString()));
+        }
+    }
+
+    public Object getObject() {
+        return object;
+    }
+
+    public void setObject(Object object) {
+        this.object = object;
+    }
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/Context.java b/src/main/java/com/juick/www/api/activity/model/Context.java
new file mode 100644
index 00000000..57e29e0f
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/Context.java
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model;
+
+import com.fasterxml.jackson.annotation.*;
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
+import com.juick.www.api.activity.helpers.LinkValueDeserializer;
+import com.juick.www.api.activity.model.activities.*;
+import com.juick.www.api.activity.model.objects.*;
+
+import java.time.Instant;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, property="type")
+@JsonSubTypes({
+        @JsonSubTypes.Type(value = Create.class, name = "Create"),
+        @JsonSubTypes.Type(value = Update.class, name = "Update"),
+        @JsonSubTypes.Type(value = Delete.class, name = "Delete"),
+        @JsonSubTypes.Type(value = Follow.class, name = "Follow"),
+        @JsonSubTypes.Type(value = Accept.class, name = "Accept"),
+        @JsonSubTypes.Type(value = Undo.class, name = "Undo"),
+        @JsonSubTypes.Type(value = Like.class, name = "Like"),
+        @JsonSubTypes.Type(value = Block.class, name = "Block"),
+        @JsonSubTypes.Type(value = Announce.class, name = "Announce"),
+        @JsonSubTypes.Type(value = Activity.class, name = "Activity"),
+        @JsonSubTypes.Type(value = Image.class, name = "Image"),
+        @JsonSubTypes.Type(value = Key.class, name = "Key"),
+        @JsonSubTypes.Type(value = Link.class, name = "Link"),
+        @JsonSubTypes.Type(value = Hashtag.class, name = "Hashtag"),
+        @JsonSubTypes.Type(value = Mention.class, name = "Mention"),
+        @JsonSubTypes.Type(value = Emoji.class, name = "Emoji"),
+        @JsonSubTypes.Type(value = Note.class, name = "Note"),
+        @JsonSubTypes.Type(value = OrderedCollection.class, name = "OrderedCollection"),
+        @JsonSubTypes.Type(value = OrderedCollectionPage.class, name = "OrderedCollectionPage"),
+        @JsonSubTypes.Type(value = Person.class, name = "Person")
+})
+public abstract class Context {
+
+    private List<Object> context;
+
+    private String id;
+
+    private String name;
+
+    private Instant published;
+
+    @JsonDeserialize(using = LinkValueDeserializer.class)
+    private String url;
+
+    private List<String> to;
+
+    private List<Context> tags;
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getType() {
+        return getClass().getSimpleName();
+    }
+
+    @JsonProperty("@context")
+    @JsonFormat(with = JsonFormat.Feature.ACCEPT_SINGLE_VALUE_AS_ARRAY)
+    public List<Object> getContext() {
+        return context;
+    }
+
+    public final static String ACTIVITY_STREAMS_URI = "https://www.w3.org/ns/activitystreams";
+    public final static String SECURITY_URI = "https://w3id.org/security/v1";
+    public final static String LD_JSON_MEDIA_TYPE = "application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\"";
+    public final static String ACTIVITY_MEDIA_TYPE = "application/activity+json";
+    public final static String ACTIVITYSTREAMS_PROFILE_MEDIA_TYPE = ACTIVITY_MEDIA_TYPE + "; profile=\"https://www.w3.org/ns/activitystreams\"";
+    public final static String ACTIVITYSTREAMS_PUBLIC = "https://www.w3.org/ns/activitystreams#Public";
+
+    public Instant getPublished() {
+        return published;
+    }
+
+    public void setPublished(Instant published) {
+        this.published = published;
+    }
+
+    public List<String> getTo() {
+        return to;
+    }
+
+    public void setTo(List<String> to) {
+        this.to = to;
+    }
+
+    public static Context build(Context response) {
+        response.context = new ArrayList<>(Arrays.asList(ACTIVITY_STREAMS_URI, SECURITY_URI));
+        response.context.add(Collections.singletonMap("Hashtag", "as:Hashtag"));
+        return response;
+    }
+
+    public String getUrl() {
+        return url;
+    }
+
+    public void setUrl(String url) {
+        this.url = url;
+    }
+
+    @JsonProperty("tag")
+    public List<Context> getTags() {
+        return tags;
+    }
+
+    public void setTags(List<Context> tags) {
+        this.tags = tags;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/activities/Accept.java b/src/main/java/com/juick/www/api/activity/model/activities/Accept.java
new file mode 100644
index 00000000..30a55839
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/activities/Accept.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.activities;
+
+import com.juick.www.api.activity.model.Activity;
+
+public class Accept extends Activity {
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/activities/Announce.java b/src/main/java/com/juick/www/api/activity/model/activities/Announce.java
new file mode 100644
index 00000000..4561b10e
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/activities/Announce.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.activities;
+
+import com.juick.www.api.activity.model.Activity;
+
+public class Announce extends Activity {
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/activities/Block.java b/src/main/java/com/juick/www/api/activity/model/activities/Block.java
new file mode 100644
index 00000000..66919235
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/activities/Block.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.activities;
+
+import com.juick.www.api.activity.model.Activity;
+
+public class Block extends Activity {
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/activities/Create.java b/src/main/java/com/juick/www/api/activity/model/activities/Create.java
new file mode 100644
index 00000000..5da46545
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/activities/Create.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.activities;
+
+import com.juick.www.api.activity.model.Activity;
+
+public class Create extends Activity {
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/activities/Delete.java b/src/main/java/com/juick/www/api/activity/model/activities/Delete.java
new file mode 100644
index 00000000..0214f869
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/activities/Delete.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.activities;
+
+import com.juick.www.api.activity.model.Activity;
+
+public class Delete extends Activity {
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/activities/Follow.java b/src/main/java/com/juick/www/api/activity/model/activities/Follow.java
new file mode 100644
index 00000000..b7653d23
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/activities/Follow.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.activities;
+
+import com.juick.www.api.activity.model.Activity;
+
+public class Follow extends Activity {
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/activities/Like.java b/src/main/java/com/juick/www/api/activity/model/activities/Like.java
new file mode 100644
index 00000000..76a35a3c
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/activities/Like.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.activities;
+
+import com.juick.www.api.activity.model.Activity;
+
+public class Like extends Activity {
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/activities/Undo.java b/src/main/java/com/juick/www/api/activity/model/activities/Undo.java
new file mode 100644
index 00000000..0e1c7e8a
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/activities/Undo.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.activities;
+
+import com.juick.www.api.activity.model.Activity;
+
+public class Undo extends Activity {
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/activities/Update.java b/src/main/java/com/juick/www/api/activity/model/activities/Update.java
new file mode 100644
index 00000000..d6ca9c1b
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/activities/Update.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.activities;
+
+import com.juick.www.api.activity.model.Activity;
+
+public class Update extends Activity {
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/objects/Emoji.java b/src/main/java/com/juick/www/api/activity/model/objects/Emoji.java
new file mode 100644
index 00000000..bb556292
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/objects/Emoji.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.objects;
+
+import com.juick.www.api.activity.model.Context;
+
+public class Emoji extends Context {
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/objects/Hashtag.java b/src/main/java/com/juick/www/api/activity/model/objects/Hashtag.java
new file mode 100644
index 00000000..175cc305
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/objects/Hashtag.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.objects;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public class Hashtag extends Mention {
+    @JsonCreator
+    public Hashtag(@JsonProperty("href") String href, @JsonProperty("name") String name) {
+        super(href, name);
+    }
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/objects/Image.java b/src/main/java/com/juick/www/api/activity/model/objects/Image.java
new file mode 100644
index 00000000..0dfa6271
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/objects/Image.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.objects;
+
+import com.juick.www.api.activity.model.Context;
+
+public class Image extends Context {
+    private String mediaType;
+
+    public String getMediaType() {
+        return mediaType;
+    }
+
+    public void setMediaType(String mediaType) {
+        this.mediaType = mediaType;
+    }
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/objects/Key.java b/src/main/java/com/juick/www/api/activity/model/objects/Key.java
new file mode 100644
index 00000000..26d60213
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/objects/Key.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.objects;
+
+import com.juick.www.api.activity.model.Context;
+
+public class Key extends Context {
+    private String owner;
+    private String publicKeyPem;
+
+    public String getOwner() {
+        return owner;
+    }
+
+    public void setOwner(String owner) {
+        this.owner = owner;
+    }
+
+    public String getPublicKeyPem() {
+        return publicKeyPem;
+    }
+
+    public void setPublicKeyPem(String publicKeyPem) {
+        this.publicKeyPem = publicKeyPem;
+    }
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/objects/Link.java b/src/main/java/com/juick/www/api/activity/model/objects/Link.java
new file mode 100644
index 00000000..58bf2304
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/objects/Link.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.objects;
+
+import com.juick.www.api.activity.model.Context;
+
+public class Link extends Context {
+    private String href;
+
+    public String getHref() {
+        return href;
+    }
+
+    public void setHref(String href) {
+        this.href = href;
+    }
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/objects/Mention.java b/src/main/java/com/juick/www/api/activity/model/objects/Mention.java
new file mode 100644
index 00000000..a6099b53
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/objects/Mention.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.objects;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public class Mention extends Link {
+    @JsonCreator
+    public Mention(@JsonProperty("href") String href, @JsonProperty("name") String name) {
+        this.setHref(href);
+        this.setName(name);
+    }
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/objects/Note.java b/src/main/java/com/juick/www/api/activity/model/objects/Note.java
new file mode 100644
index 00000000..b04b1ec9
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/objects/Note.java
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.objects;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import com.juick.www.api.activity.model.Context;
+
+import java.util.List;
+
+public class Note extends Context {
+    private String content;
+    private String attributedTo;
+    private String inReplyTo;
+    private List<Image> attachment;
+    private List<String> to;
+    private List<String> cc;
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public String getAttributedTo() {
+        return attributedTo;
+    }
+
+    public void setAttributedTo(String attributedTo) {
+        this.attributedTo = attributedTo;
+    }
+
+    @JsonFormat(with = JsonFormat.Feature.ACCEPT_SINGLE_VALUE_AS_ARRAY)
+    public List<Image> getAttachment() {
+        return attachment;
+    }
+
+    public void setAttachment(List<Image> attachment) {
+        this.attachment = attachment;
+    }
+
+    public List<String> getTo() {
+        return to;
+    }
+
+    public void setTo(List<String> to) {
+        this.to = to;
+    }
+
+    public List<String> getCc() {
+        return cc;
+    }
+
+    public void setCc(List<String> cc) {
+        this.cc = cc;
+    }
+
+    public String getInReplyTo() {
+        return inReplyTo;
+    }
+
+    public void setInReplyTo(String inReplyTo) {
+        this.inReplyTo = inReplyTo;
+    }
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/objects/OrderedCollection.java b/src/main/java/com/juick/www/api/activity/model/objects/OrderedCollection.java
new file mode 100644
index 00000000..d7d43a26
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/objects/OrderedCollection.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.objects;
+
+import com.juick.www.api.activity.model.Context;
+
+public class OrderedCollection extends Context {
+
+    private int totalItems;
+
+    public int getTotalItems() {
+        return totalItems;
+    }
+
+    public void setTotalItems(int totalItems) {
+        this.totalItems = totalItems;
+    }
+    private String first;
+
+    public String getFirst() {
+        return first;
+    }
+
+    public void setFirst(String first) {
+        this.first = first;
+    }
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/objects/OrderedCollectionPage.java b/src/main/java/com/juick/www/api/activity/model/objects/OrderedCollectionPage.java
new file mode 100644
index 00000000..340e24cf
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/objects/OrderedCollectionPage.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.objects;
+
+import com.juick.www.api.activity.model.Context;
+
+import java.util.List;
+
+public class OrderedCollectionPage extends Context {
+
+    private String partOf;
+
+    private String first;
+
+    private String next;
+
+    private String last;
+
+    private List<? extends Context> orderedItems;
+
+    public String getNext() {
+        return next;
+    }
+
+    public void setNext(String next) {
+        this.next = next;
+    }
+
+    public List<? extends Context> getOrderedItems() {
+        return orderedItems;
+    }
+
+    public void setOrderedItems(List<? extends Context> orderedItems) {
+        this.orderedItems = orderedItems;
+    }
+
+    public String getPartOf() {
+        return partOf;
+    }
+
+    public void setPartOf(String partOf) {
+        this.partOf = partOf;
+    }
+
+    public String getFirst() {
+        return first;
+    }
+
+    public void setFirst(String first) {
+        this.first = first;
+    }
+
+    public String getLast() {
+        return last;
+    }
+
+    public void setLast(String last) {
+        this.last = last;
+    }
+}
diff --git a/src/main/java/com/juick/www/api/activity/model/objects/Person.java b/src/main/java/com/juick/www/api/activity/model/objects/Person.java
new file mode 100644
index 00000000..c653bee1
--- /dev/null
+++ b/src/main/java/com/juick/www/api/activity/model/objects/Person.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2008-2019, 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.activity.model.objects;
+
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.juick.www.api.activity.model.Context;
+
+public class Person extends Context {
+
+    private String name;
+    private String preferredUsername;
+    private Image icon;
+    private String inbox;
+    private String outbox;
+    private String following;
+    private String followers;
+    private Key publicKey;
+
+    @Override
+    public String getType() {
+        return "Person";
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    @JsonTypeInfo(use = JsonTypeInfo.Id.NONE)
+    public Image getIcon() {
+        return icon;
+    }
+
+    public void setIcon(Image icon) {
+        this.icon = icon;
+    }
+
+    public String getOutbox() {
+        return outbox;
+    }
+
+    public void setOutbox(String outbox) {
+        this.outbox = outbox;
+    }
+
+    public String getInbox() {
+        return inbox;
+    }
+
+    public void setInbox(String inbox) {
+        this.inbox = inbox;
+    }
+
+    public String getFollowing() {
+        return following;
+    }
+
+    public void setFollowing(String following) {
+        this.following = following;
+    }
+
+    public String getFollowers() {
+        return followers;
+    }
+
+    public void setFollowers(String followers) {
+        this.followers = followers;
+    }
+
+    @JsonTypeInfo(use = JsonTypeInfo.Id.NONE)
+    public Key getPublicKey() {
+        return publicKey;
+    }
+
+    public void setPublicKey(Key publicKey) {
+        this.publicKey = publicKey;
+    }
+
+    public String getPreferredUsername() {
+        return preferredUsername;
+    }
+
+    public void setPreferredUsername(String preferredUsername) {
+        this.preferredUsername = preferredUsername;
+    }
+}
diff --git a/src/main/java/com/juick/www/api/apple/AppSiteAssociation.java b/src/main/java/com/juick/www/api/apple/AppSiteAssociation.java
new file mode 100644
index 00000000..c4afb9fb
--- /dev/null
+++ b/src/main/java/com/juick/www/api/apple/AppSiteAssociation.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2008-2019, 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.apple;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.Collections;
+import java.util.List;
+
+@RestController
+public class AppSiteAssociation {
+    @Value("${ios_app_id:}")
+    private String appId;
+
+    @GetMapping("/.well-known/apple-app-site-association")
+    @ResponseBody
+    public SiteAssociations appSiteAssociations() {
+        WebCredentials webCredentials = new WebCredentials();
+        webCredentials.setApps(Collections.singletonList(appId));
+        SiteAssociations siteAssociations = new SiteAssociations();
+        siteAssociations.setWebcredentials(webCredentials);
+        return siteAssociations;
+    }
+
+    private class SiteAssociations {
+        private WebCredentials webcredentials;
+
+        public WebCredentials getWebcredentials() {
+            return webcredentials;
+        }
+
+        public void setWebcredentials(WebCredentials webcredentials) {
+            this.webcredentials = webcredentials;
+        }
+    }
+
+    private class WebCredentials {
+        private List<String> apps;
+
+        public List<String> getApps() {
+            return apps;
+        }
+
+        public void setApps(List<String> apps) {
+            this.apps = apps;
+        }
+    }
+}
diff --git a/src/main/java/com/juick/www/api/hostmeta/HostMeta.java b/src/main/java/com/juick/www/api/hostmeta/HostMeta.java
new file mode 100644
index 00000000..5c500d6d
--- /dev/null
+++ b/src/main/java/com/juick/www/api/hostmeta/HostMeta.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2008-2019, 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.hostmeta;
+
+import com.cliqset.xrd.Link;
+import com.cliqset.xrd.XRD;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.Collections;
+
+import static com.cliqset.xrd.XRDConstants.XRD_MEDIA_TYPE;
+
+@RestController
+public class HostMeta {
+    @Value("${ap_base_uri:http://localhost:8080/}")
+    private String baseUri;
+    @GetMapping(value = "/.well-known/host-meta", produces = XRD_MEDIA_TYPE)
+    public XRD hostMetaResponse() {
+        Link webfinger = new Link();
+        webfinger.setTemplate(String.format("%swebfinger?resource={uri}", baseUri));
+        XRD xrd = new XRD();
+        xrd.setLinks(Collections.singletonList(webfinger));
+        return xrd;
+    }
+}
diff --git a/src/main/java/com/juick/www/api/webfinger/Resource.java b/src/main/java/com/juick/www/api/webfinger/Resource.java
new file mode 100644
index 00000000..1529ea09
--- /dev/null
+++ b/src/main/java/com/juick/www/api/webfinger/Resource.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2008-2019, 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.webfinger;
+
+import com.juick.model.User;
+import com.juick.www.api.webfinger.model.Account;
+import com.juick.www.api.webfinger.model.Link;
+import com.juick.server.util.HttpNotFoundException;
+import com.juick.service.UserService;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.util.UriComponentsBuilder;
+import rocks.xmpp.addr.Jid;
+
+import javax.inject.Inject;
+import java.util.Collections;
+
+import static com.juick.www.api.activity.model.Context.ACTIVITY_MEDIA_TYPE;
+
+@RestController
+public class Resource {
+    @Inject
+    private UserService userService;
+    @Value("${web_domain:localhost}")
+    private String domain;
+    @Value("${ap_base_uri:http://localhost:8080/}")
+    private String baseUri;
+
+    @GetMapping(value = "/.well-known/webfinger", produces = "application/jrd+json;charset=utf-8")
+    public Account getWebResource(@RequestParam String resource) {
+        if (resource.startsWith("acct:")) {
+            Jid account = Jid.of(resource.substring(5));
+            if (account.getDomain().equals(domain)) {
+                User user = userService.getUserByName(account.getLocal());
+                if (!user.isAnonymous()) {
+                    UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(baseUri);
+                    builder.path(String.format("/u/%s", user.getName()));
+                    Link blog = new Link();
+                    blog.setRel("self");
+                    blog.setType(ACTIVITY_MEDIA_TYPE);
+                    blog.setHref(builder.toUriString());
+                    Account result = new Account();
+                    result.setSubject(resource);
+                    result.setLinks(Collections.singletonList(blog));
+                    return result;
+                }
+            }
+        }
+        throw new HttpNotFoundException();
+    }
+}
diff --git a/src/main/java/com/juick/www/api/webfinger/model/Account.java b/src/main/java/com/juick/www/api/webfinger/model/Account.java
new file mode 100644
index 00000000..92008604
--- /dev/null
+++ b/src/main/java/com/juick/www/api/webfinger/model/Account.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2008-2019, 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.webfinger.model;
+
+import java.util.List;
+
+public class Account {
+    private String subject;
+    private List<Link> links;
+
+    public String getSubject() {
+        return subject;
+    }
+
+    public void setSubject(String subject) {
+        this.subject = subject;
+    }
+
+    public List<Link> getLinks() {
+        return links;
+    }
+
+    public void setLinks(List<Link> links) {
+        this.links = links;
+    }
+}
diff --git a/src/main/java/com/juick/www/api/webfinger/model/Link.java b/src/main/java/com/juick/www/api/webfinger/model/Link.java
new file mode 100644
index 00000000..437b53f7
--- /dev/null
+++ b/src/main/java/com/juick/www/api/webfinger/model/Link.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2008-2019, 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.webfinger.model;
+
+public class Link {
+    private String rel;
+    private String type;
+    private String href;
+
+    public String getRel() {
+        return rel;
+    }
+
+    public void setRel(String rel) {
+        this.rel = rel;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public void setType(String type) {
+        this.type = type;
+    }
+
+    public String getHref() {
+        return href;
+    }
+
+    public void setHref(String href) {
+        this.href = href;
+    }
+}
diff --git a/src/main/java/com/juick/www/api/webhooks/TelegramWebhook.java b/src/main/java/com/juick/www/api/webhooks/TelegramWebhook.java
new file mode 100644
index 00000000..32218b3a
--- /dev/null
+++ b/src/main/java/com/juick/www/api/webhooks/TelegramWebhook.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2008-2019, 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.webhooks;
+
+import com.juick.server.TelegramBotManager;
+import com.pengrad.telegrambot.BotUtils;
+import com.pengrad.telegrambot.model.Update;
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.text.StringEscapeUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestController;
+import springfox.documentation.annotations.ApiIgnore;
+
+import javax.inject.Inject;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+
+/**
+ * Created by vt on 24/11/2016.
+ */
+@ApiIgnore
+@RestController
+@ConditionalOnProperty({"telegram_token"})
+public class TelegramWebhook {
+    private static final Logger logger = LoggerFactory.getLogger("Telegram");
+    @Inject
+    private TelegramBotManager telegramBotManager;
+
+    @RequestMapping(value = "/api/tlgmbtwbhk", method = RequestMethod.POST)
+    @ResponseStatus(value = HttpStatus.OK)
+    public void processUpdate(InputStream body) throws Exception {
+        String data = IOUtils.toString(body, StandardCharsets.UTF_8);
+        logger.debug("Telegram update: {}", StringEscapeUtils.unescapeJava(data));
+        Update update = BotUtils.parseUpdate(data);
+        telegramBotManager.processUpdate(update);
+    }
+}
diff --git a/src/main/java/com/juick/www/api/xnodeinfo2/Info.java b/src/main/java/com/juick/www/api/xnodeinfo2/Info.java
new file mode 100644
index 00000000..36be1a16
--- /dev/null
+++ b/src/main/java/com/juick/www/api/xnodeinfo2/Info.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2008-2019, 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.xnodeinfo2;
+
+import com.cliqset.xrd.Link;
+import com.cliqset.xrd.XRD;
+import com.fasterxml.jackson.annotation.JsonView;
+import com.juick.www.api.xnodeinfo2.model.*;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.MediaType;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.util.UriComponentsBuilder;
+
+import javax.inject.Inject;
+import java.net.URI;
+import java.time.ZonedDateTime;
+import java.time.temporal.ChronoUnit;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+@RestController
+public class Info {
+    @Value("${ap_base_uri:http://localhost:8080/}")
+    private String baseUri;
+    @Inject
+    private JdbcTemplate jdbcTemplate;
+
+    private NodeInfo getCurrentNodeInfo(String version) {
+        NodeInfo nodeInfo = new NodeInfo();
+        nodeInfo.setVersion(version);
+        Server server = new Server();
+        server.setBaseUrl(baseUri);
+        server.setName("Juick");
+        server.setSoftware("Juick");
+        server.setVersion("2.x");
+        nodeInfo.setServer(server);
+        nodeInfo.setProtocols(Arrays.asList("xmpp", "activitypub", "smtp"));
+        Map<String, String> metadata = new HashMap<>();
+        metadata.put("email", "support@juick.com");
+        nodeInfo.setMetadata(metadata);
+        ServiceInfo serviceInfo = new ServiceInfo();
+        serviceInfo.setInbound(Arrays.asList("jabber", "mastodon", "email", "telegram"));
+        serviceInfo.setOutbound(Arrays.asList("jabber", "mastodon", "telegram", "twitter", "email", "rss"));
+        nodeInfo.setServices(serviceInfo);
+        UserStats userStats = new UserStats();
+        userStats.setTotal(jdbcTemplate.queryForObject("SELECT COUNT(*) FROM users WHERE banned=0", Integer.class));
+        userStats.setActiveMonth(jdbcTemplate.queryForObject("SELECT COUNT(*) FROM users WHERE banned=0 AND last_seen > ?",
+                Integer.class, ZonedDateTime.now().minus(1, ChronoUnit.MONTHS).toLocalDateTime()));
+        userStats.setActiveHalfyear(jdbcTemplate.queryForObject("SELECT COUNT(*) FROM users WHERE banned=0 AND last_seen > ?",
+                Integer.class, ZonedDateTime.now().minus(6, ChronoUnit.MONTHS).toLocalDateTime()));
+        Usage usage = new Usage();
+        usage.setUsers(userStats);
+        usage.setLocalPosts(jdbcTemplate.queryForObject("SELECT COUNT(*) FROM messages",
+                Integer.class));
+        usage.setLocalComments(jdbcTemplate.queryForObject("SELECT COUNT(*) FROM replies",
+                Integer.class));
+        nodeInfo.setUsage(usage);
+        return nodeInfo;
+    }
+
+    @GetMapping(value = "/.well-known/x-nodeinfo2", produces = MediaType.APPLICATION_JSON_VALUE)
+    @JsonView(NodeInfo.XNodeInfoView.class)
+    public NodeInfo showXNodeInfo() {
+        return getCurrentNodeInfo("1.0");
+    }
+
+    @GetMapping(value = "/.well-known/nodeinfo", produces = MediaType.APPLICATION_JSON_VALUE)
+    public XRD getNodeInfoLinks() {
+        Link nodeinfo = new Link();
+        nodeinfo.setRel(URI.create("http://nodeinfo.diaspora.software/ns/schema/2.0"));
+        UriComponentsBuilder uriComponentsBuilder = UriComponentsBuilder.fromUriString(baseUri);
+        uriComponentsBuilder.replacePath("/api/nodeinfo/2.0");
+        nodeinfo.setHref(uriComponentsBuilder.build().toUri());
+        XRD xrd = new XRD();
+        xrd.setLinks(Collections.singletonList(nodeinfo));
+        return xrd;
+    }
+
+    @GetMapping(value = "/api/nodeinfo/2.0", produces = MediaType.APPLICATION_JSON_VALUE)
+    @JsonView(NodeInfo.NodeInfoView.class)
+    public NodeInfo showNodeInfo() {
+        return getCurrentNodeInfo("2.0");
+    }
+}
diff --git a/src/main/java/com/juick/www/api/xnodeinfo2/model/NodeInfo.java b/src/main/java/com/juick/www/api/xnodeinfo2/model/NodeInfo.java
new file mode 100644
index 00000000..04526961
--- /dev/null
+++ b/src/main/java/com/juick/www/api/xnodeinfo2/model/NodeInfo.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2008-2019, 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.xnodeinfo2.model;
+
+import com.fasterxml.jackson.annotation.JsonView;
+
+import java.util.List;
+import java.util.Map;
+
+public class NodeInfo {
+
+    private String version;
+
+    private Server server;
+
+    private List<String> protocols;
+
+    private ServiceInfo services;
+
+    private Map<String, String> metadata;
+
+    @JsonView({XNodeInfoView.class, NodeInfoView.class})
+    public String getVersion() {
+        return version;
+    }
+
+    public void setVersion(String version) {
+        this.version = version;
+    }
+
+    @JsonView(XNodeInfoView.class)
+    public Server getServer() {
+        return server;
+    }
+    @JsonView(NodeInfoView.class)
+    public Server getSoftware() {
+        return server;
+    }
+
+    public void setServer(Server server) {
+        this.server = server;
+    }
+
+    @JsonView({XNodeInfoView.class, NodeInfoView.class})
+    public List<String> getProtocols() {
+        return protocols;
+    }
+
+    public void setProtocols(List<String> protocols) {
+        this.protocols = protocols;
+    }
+
+    @JsonView({XNodeInfoView.class, NodeInfoView.class})
+    public ServiceInfo getServices() {
+        return services;
+    }
+
+    public void setServices(ServiceInfo services) {
+        this.services = services;
+    }
+
+    @JsonView({XNodeInfoView.class, NodeInfoView.class})
+    public boolean getOpenRegistrations() {
+        return true;
+    }
+
+    private Usage usage;
+
+    @JsonView({XNodeInfoView.class, NodeInfoView.class})
+    public Usage getUsage() {
+        return usage;
+    }
+
+    public void setUsage(Usage usage) {
+        this.usage = usage;
+    }
+
+    @JsonView(NodeInfoView.class)
+    public Map<String, String> getMetadata() {
+        return metadata;
+    }
+
+    public void setMetadata(Map<String, String> metadata) {
+        this.metadata = metadata;
+    }
+
+    public interface NodeInfoView {}
+    public interface XNodeInfoView {}
+}
diff --git a/src/main/java/com/juick/www/api/xnodeinfo2/model/Server.java b/src/main/java/com/juick/www/api/xnodeinfo2/model/Server.java
new file mode 100644
index 00000000..a03695f6
--- /dev/null
+++ b/src/main/java/com/juick/www/api/xnodeinfo2/model/Server.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2008-2019, 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.xnodeinfo2.model;
+
+import com.fasterxml.jackson.annotation.JsonView;
+
+public class Server {
+    private String baseUrl;
+    private String name;
+    private String software;
+    private String version;
+
+    @JsonView(NodeInfo.XNodeInfoView.class)
+    public String getBaseUrl() {
+        return baseUrl;
+    }
+
+    public void setBaseUrl(String baseUrl) {
+        this.baseUrl = baseUrl;
+    }
+
+    @JsonView({NodeInfo.NodeInfoView.class, NodeInfo.XNodeInfoView.class})
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    @JsonView(NodeInfo.XNodeInfoView.class)
+    public String getSoftware() {
+        return software;
+    }
+
+    public void setSoftware(String software) {
+        this.software = software;
+    }
+
+    @JsonView({NodeInfo.NodeInfoView.class, NodeInfo.XNodeInfoView.class})
+    public String getVersion() {
+        return version;
+    }
+
+    public void setVersion(String version) {
+        this.version = version;
+    }
+}
diff --git a/src/main/java/com/juick/www/api/xnodeinfo2/model/ServiceInfo.java b/src/main/java/com/juick/www/api/xnodeinfo2/model/ServiceInfo.java
new file mode 100644
index 00000000..a9482731
--- /dev/null
+++ b/src/main/java/com/juick/www/api/xnodeinfo2/model/ServiceInfo.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2008-2019, 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.xnodeinfo2.model;
+
+import com.fasterxml.jackson.annotation.JsonView;
+
+import java.util.List;
+
+@JsonView({NodeInfo.NodeInfoView.class, NodeInfo.XNodeInfoView.class})
+public class ServiceInfo {
+    private List<String> inbound;
+    private List<String> outbound;
+
+    public List<String> getInbound() {
+        return inbound;
+    }
+
+    public void setInbound(List<String> inbound) {
+        this.inbound = inbound;
+    }
+
+    public List<String> getOutbound() {
+        return outbound;
+    }
+
+    public void setOutbound(List<String> outbound) {
+        this.outbound = outbound;
+    }
+}
diff --git a/src/main/java/com/juick/www/api/xnodeinfo2/model/Usage.java b/src/main/java/com/juick/www/api/xnodeinfo2/model/Usage.java
new file mode 100644
index 00000000..436b2565
--- /dev/null
+++ b/src/main/java/com/juick/www/api/xnodeinfo2/model/Usage.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2008-2019, 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.xnodeinfo2.model;
+
+import com.fasterxml.jackson.annotation.JsonView;
+
+@JsonView({NodeInfo.NodeInfoView.class, NodeInfo.XNodeInfoView.class})
+public class Usage {
+    private UserStats users;
+    private int localPosts;
+    private int localComments;
+
+    public UserStats getUsers() {
+        return users;
+    }
+
+    public void setUsers(UserStats users) {
+        this.users = users;
+    }
+
+    public int getLocalPosts() {
+        return localPosts;
+    }
+
+    public void setLocalPosts(int localPosts) {
+        this.localPosts = localPosts;
+    }
+
+    public int getLocalComments() {
+        return localComments;
+    }
+
+    public void setLocalComments(int localComments) {
+        this.localComments = localComments;
+    }
+}
diff --git a/src/main/java/com/juick/www/api/xnodeinfo2/model/UserStats.java b/src/main/java/com/juick/www/api/xnodeinfo2/model/UserStats.java
new file mode 100644
index 00000000..15c42fc9
--- /dev/null
+++ b/src/main/java/com/juick/www/api/xnodeinfo2/model/UserStats.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2008-2019, 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.xnodeinfo2.model;
+
+import com.fasterxml.jackson.annotation.JsonView;
+
+@JsonView({NodeInfo.NodeInfoView.class, NodeInfo.XNodeInfoView.class})
+public class UserStats {
+    private int total;
+    private int activeHalfyear;
+    private int activeMonth;
+
+    public int getTotal() {
+        return total;
+    }
+
+    public void setTotal(int total) {
+        this.total = total;
+    }
+
+    public int getActiveHalfyear() {
+        return activeHalfyear;
+    }
+
+    public void setActiveHalfyear(int activeHalfyear) {
+        this.activeHalfyear = activeHalfyear;
+    }
+
+    public int getActiveMonth() {
+        return activeMonth;
+    }
+
+    public void setActiveMonth(int activeMonth) {
+        this.activeMonth = activeMonth;
+    }
+}