From c088659386565a3590ab58eb10b21b5c8547fe6c Mon Sep 17 00:00:00 2001
From: Vitaly Takmazov
Date: Fri, 27 Aug 2021 17:14:34 +0300
Subject: handle WebFinger errors

---
 src/main/java/com/juick/SignatureManager.java | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/src/main/java/com/juick/SignatureManager.java b/src/main/java/com/juick/SignatureManager.java
index bccc46be..13c3fff2 100644
--- a/src/main/java/com/juick/SignatureManager.java
+++ b/src/main/java/com/juick/SignatureManager.java
@@ -35,6 +35,7 @@ import org.springframework.http.HttpEntity;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpMethod;
 import org.springframework.http.ResponseEntity;
+import org.springframework.web.client.RestClientException;
 import org.springframework.web.client.RestTemplate;
 import org.springframework.web.util.UriComponentsBuilder;
 import org.tomitribe.auth.signatures.Base64;
@@ -178,17 +179,22 @@ public class SignatureManager {
         HttpHeaders headers = new HttpHeaders();
         headers.add("Accept", "application/jrd+json");
         HttpEntity<Void> webfingerRequest = new HttpEntity<>(headers);
-        ResponseEntity<Account> response = apClient.exchange(resourceUri, HttpMethod.GET, webfingerRequest,
-                Account.class);
-        if (response.getStatusCode().is2xxSuccessful()) {
-            Account acctData = response.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()));
+        try {
+            ResponseEntity<Account> response = apClient.exchange(resourceUri, HttpMethod.GET, webfingerRequest,
+                    Account.class);
+            if (response.getStatusCode().is2xxSuccessful()) {
+                Account acctData = response.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()));
+                        }
                     }
                 }
             }
+        } catch (RestClientException e) {
+            logger.warn("Cannot discover person {}: {}", acct, e.getMessage());
+            return Optional.empty();
         }
         return Optional.empty();
     }
-- 
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