ActivityPub: mentions with @user@server.tld

9 files changed, 107 insertions, 33 deletions

diff --git a/juick-common/src/main/java/com/juick/util/MessageUtils.java b/juick-common/src/main/java/com/juick/util/MessageUtils.java
index 62616bdf..fd357c32 100644
--- a/juick-common/src/main/java/com/juick/util/MessageUtils.java
+++ b/juick-common/src/main/java/com/juick/util/MessageUtils.java
@@ -71,6 +71,9 @@ public class MessageUtils {
     private final static String usernameRegex = "((?<=\\s)|(?<=\\A))@([\\w\\-]{2,16})((?=\\s)|(?=\\Z)|(?=\\p{Punct}))";
     private final static Pattern usernamePattern = Pattern.compile(usernameRegex);
 
+    private final static String jidRegex = "((?<=\\s)|(?<=\\A))@([\\w\\-\\.]+@[\\w\\-\\.]+)((?=\\s)|(?=\\Z)|(?=\\p{Punct}))";
+    private final static Pattern jidPattern = Pattern.compile(jidRegex);
+
     public static String formatMessageCode(String msg) {
         msg = msg.replaceAll("&", "&amp;");
         msg = msg.replaceAll("<", "&lt;");
@@ -138,7 +141,7 @@ public class MessageUtils {
 
         // @username@jabber.org
         // <a href="http://juick.com/username@jabber.org/">@username@jabber.org</a>
-        msg = msg.replaceAll("((?<=\\s)|(?<=\\A))@([\\w\\-\\.]+@[\\w\\-\\.]+)((?=\\s)|(?=\\Z)|(?=\\p{Punct}))", "$1<a href=\"https://juick.com/$2/\">@$2</a>$3");
+        msg = msg.replaceAll(jidRegex, "$1<a href=\"https://juick.com/$2/\">@$2</a>$3");
 
         // @username
         // <a href="http://juick.com/username/">@username</a>
@@ -304,12 +307,18 @@ public class MessageUtils {
         }
         return input;
     }
-    public static List<String> getMentions(Message msg) {
-        Matcher usernameMatcher = usernamePattern.matcher(msg.getText());
+    private static List<String> collectMatches(Pattern pattern, String input) {
+        Matcher matcher = pattern.matcher(input);
         List<String> result = new ArrayList<>();
-        while (usernameMatcher.find()) {
-            result.add(usernameMatcher.group());
+        while (matcher.find()) {
+            result.add(matcher.group());
         }
         return result;
     }
+    public static List<String> getMentions(Message msg) {
+        return collectMatches(usernamePattern, msg.getText());
+    }
+    public static List<String> getGlobalMentions(Message msg) {
+        return collectMatches(jidPattern, msg.getText());
+    }
 }
diff --git a/juick-common/src/test/java/com/juick/MessageTest.java b/juick-common/src/test/java/com/juick/MessageTest.java
index d9c83b84..6197f861 100644
--- a/juick-common/src/test/java/com/juick/MessageTest.java
+++ b/juick-common/src/test/java/com/juick/MessageTest.java
@@ -177,5 +177,7 @@ public class MessageTest {
         List<String> mentions = MessageUtils.getMentions(msg);
         assertThat(mentions.size(), is(1));
         assertThat(mentions.get(0), is("@ugnich"));
+        msg.setText("And dick is @ugnich@jabber.zp.ua");
+        assertThat(MessageUtils.getGlobalMentions(msg).size(), is(1));
     }
 }
diff --git a/juick-server/src/main/java/com/juick/server/ActivityPubManager.java b/juick-server/src/main/java/com/juick/server/ActivityPubManager.java
index 0cb76a03..6f5163cc 100644
--- a/juick-server/src/main/java/com/juick/server/ActivityPubManager.java
+++ b/juick-server/src/main/java/com/juick/server/ActivityPubManager.java
@@ -262,6 +262,15 @@ public class ActivityPubManager implements ActivityListener, NotificationListene
         } else if (MessageUtils.isReply(msg)) {
             note.getTags().add(new Mention(personWebUri(msg.getTo()), msg.getTo().getName()));
         }
+        MessageUtils.getGlobalMentions(msg).forEach(m -> {
+            // @user@server.tld -> user@server.tld
+            Optional<Context> personContext = signatureManager.discoverPerson(m.substring(1));
+            if (personContext.isPresent()) {
+                Person person = (Person) personContext.get();
+                note.getTags().add(new Mention(person.getUrl(), person.getPreferredUsername()));
+                note.getCc().add(person.getUrl());
+            }
+        });
         if (msg.isHtml()) {
             note.setContent(msg.getText());
         } else {
diff --git a/juick-server/src/main/java/com/juick/server/SignatureManager.java b/juick-server/src/main/java/com/juick/server/SignatureManager.java
index 927a62a7..b3b7a301 100644
--- a/juick-server/src/main/java/com/juick/server/SignatureManager.java
+++ b/juick-server/src/main/java/com/juick/server/SignatureManager.java
@@ -3,22 +3,22 @@ package com.juick.server;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.juick.server.api.activity.model.Context;
 import com.juick.server.api.activity.model.objects.Person;
-import com.juick.service.activities.DeleteUserEvent;
+import com.juick.server.api.webfinger.model.Account;
+import com.juick.server.api.webfinger.model.Link;
 import com.juick.util.DateFormattersHolder;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.context.ApplicationEventPublisher;
 import org.springframework.http.HttpEntity;
 import org.springframework.http.HttpHeaders;
-import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Component;
-import org.springframework.web.client.HttpClientErrorException;
 import org.springframework.web.client.RestTemplate;
 import org.springframework.web.util.UriComponentsBuilder;
 import org.tomitribe.auth.signatures.Signature;
 import org.tomitribe.auth.signatures.Signer;
 import org.tomitribe.auth.signatures.Verifier;
+import rocks.xmpp.addr.Jid;
 
 import javax.inject.Inject;
 import java.io.IOException;
@@ -27,12 +27,12 @@ import java.security.Key;
 import java.security.NoSuchAlgorithmException;
 import java.security.SignatureException;
 import java.time.Instant;
-import java.time.ZoneId;
-import java.time.format.DateTimeFormatter;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Optional;
 
+import static com.juick.server.api.activity.model.Context.ACTIVITY_MEDIA_TYPE;
+
 @Component
 public class SignatureManager {
     private static final Logger logger = LoggerFactory.getLogger(ActivityPubManager.class);
@@ -58,7 +58,7 @@ public class SignatureManager {
         headers.put("date", requestDate);
         Signature signature = signer.sign("POST", inbox.getPath(), headers);
         HttpHeaders requestHeaders = new HttpHeaders();
-        requestHeaders.add("Content-Type", Context.ACTIVITY_JSON_MEDIA_TYPE);
+        requestHeaders.add("Content-Type", Context.ACTIVITYSTREAMS_PROFILE_MEDIA_TYPE);
         requestHeaders.add("Date", requestDate);
         requestHeaders.add("Signature", signature.toString().substring(10));
         HttpEntity<Context> request = new HttpEntity<>(Context.build(data), requestHeaders);
@@ -96,4 +96,18 @@ public class SignatureManager {
         }
         return Optional.of(context);
     }
+    public Optional<Context> discoverPerson(String acct) {
+        Jid acctId = Jid.of(acct);
+        URI resourceUri = UriComponentsBuilder.fromUriString(
+                String.format("https://%s/.well-known/webfinger?resource=acct:%s", acctId.getDomain(), acct)).build().toUri();
+        Account acctData = apClient.getForEntity(resourceUri, Account.class).getBody();
+        if (acctData != null) {
+            for (Link l : acctData.getLinks()) {
+                if (l.getRel().equals("self") && l.getType().equals(ACTIVITY_MEDIA_TYPE)) {
+                    return getContext(URI.create(l.getHref()));
+                }
+            }
+        }
+        return Optional.empty();
+    }
 }
diff --git a/juick-server/src/main/java/com/juick/server/api/activity/Profile.java b/juick-server/src/main/java/com/juick/server/api/activity/Profile.java
index ce09436d..10390ea1 100644
--- a/juick-server/src/main/java/com/juick/server/api/activity/Profile.java
+++ b/juick-server/src/main/java/com/juick/server/api/activity/Profile.java
@@ -82,7 +82,7 @@ public class Profile {
     @Inject
     private ObjectMapper jsonMapper;
 
-    @GetMapping(value = "/u/{userName}", produces = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITY_JSON_MEDIA_TYPE})
+    @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()) {
@@ -111,7 +111,7 @@ public class Profile {
         throw new HttpNotFoundException();
     }
 
-    @GetMapping(value = "/u/{userName}/blog/toc", produces = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITY_JSON_MEDIA_TYPE})
+    @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()) {
@@ -125,7 +125,7 @@ public class Profile {
         throw new HttpNotFoundException();
     }
 
-    @GetMapping(value = "/u/{userName}/blog", produces = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITY_JSON_MEDIA_TYPE})
+    @GetMapping(value = "/u/{userName}/blog", produces = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITYSTREAMS_PROFILE_MEDIA_TYPE})
     public OrderedCollectionPage getOutboxPage(@PathVariable String userName,
                                                @RequestParam(required = false, defaultValue = "0") int before) {
         User visitor = UserUtils.getCurrentUser();
@@ -158,7 +158,7 @@ public class Profile {
         throw new HttpNotFoundException();
     }
 
-    @GetMapping(value = "/u/{userName}/followers/toc", produces = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITY_JSON_MEDIA_TYPE})
+    @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()) {
@@ -172,7 +172,7 @@ public class Profile {
         throw new HttpNotFoundException();
     }
 
-    @GetMapping(value = "/u/{userName}/followers", produces = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITY_JSON_MEDIA_TYPE})
+    @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);
@@ -200,7 +200,7 @@ public class Profile {
         throw new HttpNotFoundException();
     }
 
-    @GetMapping(value = "/u/{userName}/following/toc", produces = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITY_JSON_MEDIA_TYPE})
+    @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()) {
@@ -214,7 +214,7 @@ public class Profile {
         throw new HttpNotFoundException();
     }
 
-    @GetMapping(value = "/u/{userName}/following", produces = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITY_JSON_MEDIA_TYPE})
+    @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);
@@ -242,7 +242,7 @@ public class Profile {
         throw new HttpNotFoundException();
     }
 
-    @GetMapping(value = "/n/{mid}-{rid}", produces = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITY_JSON_MEDIA_TYPE})
+    @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
@@ -253,7 +253,7 @@ public class Profile {
                 messagesService.getMessage(mid)));
     }
 
-    @PostMapping(value = "/api/inbox", consumes = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITY_JSON_MEDIA_TYPE})
+    @PostMapping(value = "/api/inbox", consumes = {Context.LD_JSON_MEDIA_TYPE, Context.ACTIVITYSTREAMS_PROFILE_MEDIA_TYPE})
     public ResponseEntity<Void> processInbox(@RequestBody Activity activity,
                                              @RequestHeader(name = "Host") String host,
                                              @RequestHeader(name = "Date") String date,
diff --git a/juick-server/src/main/java/com/juick/server/api/activity/model/Context.java b/juick-server/src/main/java/com/juick/server/api/activity/model/Context.java
index 544f1aa2..0df8f8c7 100644
--- a/juick-server/src/main/java/com/juick/server/api/activity/model/Context.java
+++ b/juick-server/src/main/java/com/juick/server/api/activity/model/Context.java
@@ -71,7 +71,8 @@ public abstract class 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_JSON_MEDIA_TYPE = "application/activity+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 Instant getPublished() {
         return published;
diff --git a/juick-server/src/main/java/com/juick/server/api/webfinger/Resource.java b/juick-server/src/main/java/com/juick/server/api/webfinger/Resource.java
index 2df895fd..71a0ca31 100644
--- a/juick-server/src/main/java/com/juick/server/api/webfinger/Resource.java
+++ b/juick-server/src/main/java/com/juick/server/api/webfinger/Resource.java
@@ -15,6 +15,8 @@ import rocks.xmpp.addr.Jid;
 import javax.inject.Inject;
 import java.util.Collections;
 
+import static com.juick.server.api.activity.model.Context.ACTIVITY_MEDIA_TYPE;
+
 @RestController
 public class Resource {
     @Inject
@@ -35,7 +37,7 @@ public class Resource {
                     builder.path(String.format("/u/%s", user.getName()));
                     Link blog = new Link();
                     blog.setRel("self");
-                    blog.setType("application/activity+json");
+                    blog.setType(ACTIVITY_MEDIA_TYPE);
                     blog.setHref(builder.toUriString());
                     Account result = new Account();
                     result.setSubject(resource);
diff --git a/juick-server/src/test/java/com/juick/server/tests/ServerTests.java b/juick-server/src/test/java/com/juick/server/tests/ServerTests.java
index d3654e90..86daff1f 100644
--- a/juick-server/src/test/java/com/juick/server/tests/ServerTests.java
+++ b/juick-server/src/test/java/com/juick/server/tests/ServerTests.java
@@ -18,7 +18,6 @@
 package com.juick.server.tests;
 
 import com.fasterxml.jackson.annotation.JsonInclude;
-import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.gargoylesoftware.htmlunit.CookieManager;
@@ -38,9 +37,9 @@ import com.juick.server.api.activity.model.activities.Create;
 import com.juick.server.api.activity.model.activities.Delete;
 import com.juick.server.api.activity.model.activities.Follow;
 import com.juick.server.api.activity.model.activities.Undo;
-import com.juick.server.api.activity.model.objects.Mention;
 import com.juick.server.api.activity.model.objects.Note;
 import com.juick.server.api.activity.model.objects.Person;
+import com.juick.server.api.webfinger.model.Account;
 import com.juick.server.util.HttpUtils;
 import com.juick.server.util.ImageUtils;
 import com.juick.server.xmpp.helpers.XMPPStatus;
@@ -68,17 +67,16 @@ import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.web.client.TestRestTemplate;
+import org.springframework.core.io.ClassPathResource;
 import org.springframework.http.*;
 import org.springframework.jdbc.core.JdbcTemplate;
 import org.springframework.test.context.TestPropertySource;
 import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.test.web.servlet.MockMvc;
 import org.springframework.test.web.servlet.MvcResult;
-import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.FileSystemUtils;
 import org.springframework.util.LinkedMultiValueMap;
 import org.springframework.util.MultiValueMap;
-import org.springframework.web.context.WebApplicationContext;
 import org.springframework.web.util.UriComponents;
 import org.springframework.web.util.UriComponentsBuilder;
 import org.w3c.dom.Document;
@@ -1432,6 +1430,8 @@ public class ServerTests {
                 .andExpect(jsonPath("$.links[0].href", is("http://localhost:8080/u/ugnich")));
         mockMvc.perform(get("/.well-known/webfinger?resource=acct:durov@localhost"))
                 .andExpect(status().isNotFound());
+        Person ugnich = (Person) signatureManager.discoverPerson("ugnich@juick.com").get();
+        assertThat(ugnich.getName(), is(ugnichName));
     }
     @Test
     public void userProfileAndBlogShouldBeExposedAsActivityStream() throws Exception {
@@ -1445,7 +1445,7 @@ public class ServerTests {
                         String.format("message %d", i), null, null))
                 .collect(Collectors.toCollection(ArrayDeque::new)).descendingIterator());
         List<Integer> midsPage = mids.stream().limit(20).collect(Collectors.toList());
-        mockMvc.perform(get("/u/ugnich/blog").accept(Context.ACTIVITY_JSON_MEDIA_TYPE))
+        mockMvc.perform(get("/u/ugnich/blog").accept(Context.ACTIVITYSTREAMS_PROFILE_MEDIA_TYPE))
                 .andExpect(status().isOk())
                 .andExpect(jsonPath("$.orderedItems", hasSize(20)))
         .andExpect(jsonPath("$.next", is("http://localhost:8080/u/ugnich/blog?before=" + midsPage.get(midsPage.size() - 1))));
@@ -1699,19 +1699,19 @@ public class ServerTests {
     }
     @Test
     public void ActivityDeserialization() throws IOException {
-        String followJsonStr = IOUtils.toString(URI.create("classpath:follow.json"), StandardCharsets.UTF_8);
+        String followJsonStr = IOUtils.toString(new ClassPathResource("follow.json").getURI(), StandardCharsets.UTF_8);
         Follow follow = (Follow)jsonMapper.readValue(followJsonStr, Context.class);
-        String personJsonStr = IOUtils.toString(URI.create("classpath:person.json"), StandardCharsets.UTF_8);
+        String personJsonStr = IOUtils.toString(new ClassPathResource("person.json").getURI(), StandardCharsets.UTF_8);
         Person person = (Person)jsonMapper.readValue(personJsonStr, Context.class);
-        String undoJsonStr = IOUtils.toString(URI.create("classpath:undo.json"), StandardCharsets.UTF_8);
+        String undoJsonStr = IOUtils.toString(new ClassPathResource("undo.json").getURI(), StandardCharsets.UTF_8);
         Undo undo = jsonMapper.readValue(undoJsonStr, Undo.class);
         String undoFollower = (String)((Map)undo.getObject()).get("object");
-        String createJsonStr = IOUtils.toString(URI.create("classpath:create.json"), StandardCharsets.UTF_8);
+        String createJsonStr = IOUtils.toString(new ClassPathResource("create.json").getURI(), StandardCharsets.UTF_8);
         Create create = jsonMapper.readValue(createJsonStr, Create.class);
         Map<String, Object> note = (Map<String, Object>) create.getObject();
         Map<String, Object> attachmentObj = (Map<String, Object> )((List<Object>) note.get("attachment")).get(0);
         String attachment = attachmentObj != null ? (String)attachmentObj.get("url") : StringUtils.EMPTY;
-        String deleteJsonStr = IOUtils.toString(URI.create("classpath:delete.json"), StandardCharsets.UTF_8);
+        String deleteJsonStr = IOUtils.toString(new ClassPathResource("delete.json").getURI(), StandardCharsets.UTF_8);
         Delete delete = jsonMapper.readValue(deleteJsonStr, Delete.class);
         int mid = messagesService.createMessage(ugnich.getUid(), "YO", "", null);
         User extUser = new User();
@@ -1725,8 +1725,9 @@ public class ServerTests {
         Message replyToExt = messagesService.getReply(mid, rid2);
         Note replyNote = activityPubManager.makeNote(replyToExt);
         assertThat(replyNote.getInReplyTo(), equalTo(extMessageUri));
-        String noteStr = IOUtils.toString(URI.create("classpath:mention.json"), StandardCharsets.UTF_8);
+        String noteStr = IOUtils.toString(new ClassPathResource("mention.json").getURI(), StandardCharsets.UTF_8);
         Note create2 = jsonMapper.readValue(noteStr, Note.class);
+        jsonMapper.readValue(IOUtils.toString(new ClassPathResource("webfinger.json").getURI(), StandardCharsets.UTF_8), Account.class);
     }
     @Test
     public void activitySerialization() throws Exception {
diff --git a/juick-server/src/test/resources/webfinger.json b/juick-server/src/test/resources/webfinger.json
new file mode 100644
index 00000000..55f9e4f3
--- /dev/null
+++ b/juick-server/src/test/resources/webfinger.json
@@ -0,0 +1,36 @@
+{
+  "subject": "acct:Gargron@mastodon.social",
+  "aliases": [
+    "https://mastodon.social/@Gargron",
+    "https://mastodon.social/users/Gargron"
+  ],
+  "links": [
+    {
+      "rel": "http://webfinger.net/rel/profile-page",
+      "type": "text/html",
+      "href": "https://mastodon.social/@Gargron"
+    },
+    {
+      "rel": "http://schemas.google.com/g/2010#updates-from",
+      "type": "application/atom+xml",
+      "href": "https://mastodon.social/users/Gargron.atom"
+    },
+    {
+      "rel": "self",
+      "type": "application/activity+json",
+      "href": "https://mastodon.social/users/Gargron"
+    },
+    {
+      "rel": "salmon",
+      "href": "https://mastodon.social/api/salmon/1"
+    },
+    {
+      "rel": "magic-public-key",
+      "href": "data:application/magic-public-key,RSA.vXc4vkECU2_CeuSo1wtnFoim94Ne1jBMYxTZ9wm2YTdJq1oiZKif06I2fOqDzY_4q_S9uccrE9Bkajv1dnkOVm31QjWlhVpSKynVxEWjVBO5Ienue8gND0xvHIuXf87o61poqjEoepvsQFElA5ymovljWGSA_jpj7ozygUZhCXtaS2W5AD5tnBQUpcO0lhItYPYTjnmzcc4y2NbJV8hz2s2G8qKv8fyimE23gY1XrPJg-cRF-g4PqFXujjlJ7MihD9oqtLGxbu7o1cifTn3xBfIdPythWu5b4cujNsB3m3awJjVmx-MHQ9SugkSIYXV0Ina77cTNS0M2PYiH1PFRTw==.AQAB"
+    },
+    {
+      "rel": "http://ostatus.org/schema/1.0/subscribe",
+      "template": "https://mastodon.social/authorize_interaction?uri={uri}"
+    }
+  ]
+}