From 2a64e080a395170875d62d3bebaf4dce3815bb13 Mon Sep 17 00:00:00 2001
From: Vitaly Takmazov
Date: Sat, 3 Nov 2018 13:14:15 +0300
Subject: ActivityPub: mentions with @user@server.tld

---
 .../java/com/juick/server/SignatureManager.java    | 26 +++++++++++++++++-----
 1 file changed, 20 insertions(+), 6 deletions(-)

(limited to 'juick-server/src/main/java/com/juick/server/SignatureManager.java')

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();
+    }
 }
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