refactor: hardcode avatar size to 256px and add TODO

src/main/java/org/keycloak/social/discord/DiscordIdentityProvider.java

@@ -47,7 +47,7 @@ public class DiscordIdentityProvider extends AbstractOAuth2IdentityProvider<Disc
     public static final String TOKEN_URL = "https://discord.com/api/oauth2/token";
     public static final String PROFILE_URL = "https://discord.com/api/users/@me";
     public static final String GROUP_URL = "https://discord.com/api/users/@me/guilds";
-    public static final String USER_PICTURE_URL = "https://cdn.discordapp.com/avatars/%s/%s.%s";
+    public static final String USER_PICTURE_URL = "https://cdn.discordapp.com/avatars/%s/%s.%s?size=%s";
     public static final String DEFAULT_SCOPE = "identify email";
     public static final String GUILDS_SCOPE = "guilds";
 
@@ -114,7 +114,8 @@ public class DiscordIdentityProvider extends AbstractOAuth2IdentityProvider<Disc
         if (avatarHash.startsWith("a_")) {
             extension = "gif";
         }
-        String finalURL = String.format(USER_PICTURE_URL, user.getId(), avatarHash, extension);
+        // TODO Image size to be configured via provider config in the future
+        String finalURL = String.format(USER_PICTURE_URL, user.getId(), avatarHash, extension, "256");
         user.setUserAttribute("picture", finalURL);
         if (profile instanceof ObjectNode objectNodeProfile) {
             objectNodeProfile.put("picture", finalURL);

src/test/java/org/keycloak/social/discord/DiscordIdentityProviderTest.java

@@ -106,7 +106,7 @@ class DiscordIdentityProviderTest {
 
         BrokeredIdentityContext user = provider.extractIdentityFromProfile(null, profile);
 
-        String expectedURL = "https://cdn.discordapp.com/avatars/80351110224678912/8342729096ea3675442027381ff50dfe.png";
+        String expectedURL = "https://cdn.discordapp.com/avatars/80351110224678912/8342729096ea3675442027381ff50dfe.png?size=256";
         assertEquals(expectedURL, user.getUserAttribute("picture"));
 
     }
@@ -126,7 +126,7 @@ class DiscordIdentityProviderTest {
 
         BrokeredIdentityContext user = provider.extractIdentityFromProfile(null, profile);
 
-        String expectedURL = "https://cdn.discordapp.com/avatars/80351110224678912/a_8342729096ea3675442027381ff50dfe.gif";
+        String expectedURL = "https://cdn.discordapp.com/avatars/80351110224678912/a_8342729096ea3675442027381ff50dfe.gif?size=256";
         assertEquals(expectedURL, user.getUserAttribute("picture"));
 
     }