feat(moderation): cell admin can mark users as moderated in a cell\n\n- Adds user moderation to ModerateMessage and transformers\n- Cell admin can moderate a user, hiding all their posts/comments in that cell for others\n- UI: admin-only 'Moderate User' button for each post/comment author (except admin themselves)\n- Fully coherent with OpChan PoC proposal moderation requirements

src/components/PostDetail.tsx

@@ -25,7 +25,9 @@ const PostDetail = () => {
     isPostingComment,
     isVoting,
     isRefreshing,
-    moderateComment
+    refreshData,
+    moderateComment,
+    moderateUser
   } = useForum();
   const { currentUser, isAuthenticated, verificationStatus } = useAuth();
   const [newComment, setNewComment] = useState('');
@@ -107,6 +109,12 @@ const PostDetail = () => {
     await moderateComment(cell.id, commentId, reason, cell.signature);
   };
   
+  const handleModerateUser = async (userAddress: string) => {
+    if (!cell) return;
+    const reason = window.prompt('Reason for moderating this user? (optional)') || undefined;
+    await moderateUser(cell.id, userAddress, reason, cell.signature);
+  };
+  
   return (
     <div className="container mx-auto px-4 py-6">
       <div className="mb-6">
@@ -254,6 +262,11 @@ const PostDetail = () => {
                       Moderate
                     </Button>
                   )}
+                  {isCellAdmin && comment.authorAddress !== cell.signature && (
+                    <Button size="sm" variant="destructive" className="ml-2" onClick={() => handleModerateUser(comment.authorAddress)}>
+                      Moderate User
+                    </Button>
+                  )}
                   {comment.moderated && (
                     <span className="ml-2 text-xs text-red-500">[Moderated]</span>
                   )}

src/components/PostList.tsx

@@ -25,7 +25,8 @@ const PostList = () => {
     votePost,
     isVoting,
     posts,
-    moderatePost
+    moderatePost,
+    moderateUser
   } = useForum();
   const { isAuthenticated, currentUser, verificationStatus } = useAuth();
   const [newPostTitle, setNewPostTitle] = useState('');
@@ -121,6 +122,12 @@ const PostList = () => {
     await moderatePost(cell.id, postId, reason, cell.signature);
   };
   
+  const handleModerateUser = async (userAddress: string) => {
+    const reason = window.prompt('Reason for moderating this user? (optional)') || undefined;
+    if (!cell) return;
+    await moderateUser(cell.id, userAddress, reason, cell.signature);
+  };
+  
   return (
     <div className="container mx-auto px-4 py-8 max-w-4xl">
       <div className="mb-6">
@@ -259,6 +266,11 @@ const PostList = () => {
                       Moderate
                     </Button>
                   )}
+                  {isCellAdmin && post.authorAddress !== cell.signature && (
+                    <Button size="sm" variant="destructive" className="ml-2" onClick={() => handleModerateUser(post.authorAddress)}>
+                      Moderate User
+                    </Button>
+                  )}
                   {post.moderated && (
                     <span className="ml-2 text-xs text-red-500">[Moderated]</span>
                   )}

src/contexts/ForumContext.tsx

@@ -8,7 +8,8 @@ import {
   vote, 
   createCell, 
   moderatePost, 
-  moderateComment 
+  moderateComment, 
+  moderateUser 
 } from './forum/actions';
 import { 
   setupPeriodicQueries, 
@@ -53,6 +54,12 @@ interface ForumContextType {
     reason: string | undefined,
     cellOwner: string
   ) => Promise<boolean>;
+  moderateUser: (
+    cellId: string,
+    userAddress: string,
+    reason: string | undefined,
+    cellOwner: string
+  ) => Promise<boolean>;
 }
 
 const ForumContext = createContext<ForumContextType | undefined>(undefined);
@@ -232,6 +239,63 @@ export function ForumProvider({ children }: { children: React.ReactNode }) {
     return result;
   };
 
+  const handleModeratePost = async (
+    cellId: string,
+    postId: string,
+    reason: string | undefined,
+    cellOwner: string
+  ) => {
+    return moderatePost(
+      cellId,
+      postId,
+      reason,
+      currentUser,
+      isAuthenticated,
+      cellOwner,
+      toast,
+      updateStateFromCache,
+      messageSigning
+    );
+  };
+
+  const handleModerateComment = async (
+    cellId: string,
+    commentId: string,
+    reason: string | undefined,
+    cellOwner: string
+  ) => {
+    return moderateComment(
+      cellId,
+      commentId,
+      reason,
+      currentUser,
+      isAuthenticated,
+      cellOwner,
+      toast,
+      updateStateFromCache,
+      messageSigning
+    );
+  };
+
+  const handleModerateUser = async (
+    cellId: string,
+    userAddress: string,
+    reason: string | undefined,
+    cellOwner: string
+  ) => {
+    return moderateUser(
+      cellId,
+      userAddress,
+      reason,
+      currentUser,
+      isAuthenticated,
+      cellOwner,
+      toast,
+      updateStateFromCache,
+      messageSigning
+    );
+  };
+
   return (
     <ForumContext.Provider
       value={{
@@ -254,7 +318,10 @@ export function ForumProvider({ children }: { children: React.ReactNode }) {
         votePost: handleVotePost,
         voteComment: handleVoteComment,
         createCell: handleCreateCell,
-        refreshData: handleRefreshData
+        refreshData: handleRefreshData,
+        moderatePost: handleModeratePost,
+        moderateComment: handleModerateComment,
+        moderateUser: handleModerateUser
       }}
     >
       {children}

src/contexts/forum/actions.ts

@@ -468,4 +468,55 @@ export const moderateComment = async (
     });
     return false;
   }
+};
+
+export const moderateUser = async (
+  cellId: string,
+  userAddress: string,
+  reason: string | undefined,
+  currentUser: User | null,
+  isAuthenticated: boolean,
+  cellOwner: string,
+  toast: ToastFunction,
+  updateStateFromCache: () => void,
+  messageSigning?: MessageSigning
+): Promise<boolean> => {
+  if (!isAuthenticated || !currentUser) {
+    toast({
+      title: "Authentication Required",
+      description: "You need to verify Ordinal ownership to moderate users.",
+      variant: "destructive",
+    });
+    return false;
+  }
+  if (currentUser.address !== cellOwner) {
+    toast({
+      title: "Not Authorized",
+      description: "Only the cell admin can moderate users.",
+      variant: "destructive",
+    });
+    return false;
+  }
+  const message: ModerateMessage = {
+    type: MessageType.MODERATE,
+    cellId,
+    targetType: 'user',
+    targetId: userAddress,
+    reason,
+    author: currentUser.address,
+    timestamp: Date.now(),
+    signature: '',
+    browserPubKey: currentUser.browserPubKey,
+  };
+  const sent = await signAndSendMessage(message, currentUser, messageSigning!, toast);
+  if (sent) {
+    updateStateFromCache();
+    toast({
+      title: "User Moderated",
+      description: `User ${userAddress} has been moderated in this cell.`,
+      variant: "default",
+    });
+    return true;
+  }
+  return false;
 }; 

src/contexts/forum/transformers.ts

@@ -47,8 +47,15 @@ export const transformPost = (
   const upvotes = filteredVotes.filter(vote => vote.value === 1);
   const downvotes = filteredVotes.filter(vote => vote.value === -1);
 
+  // Check for post moderation
   const modMsg = messageManager.messageCache.moderations[postMessage.id];
-  const isModerated = !!modMsg && modMsg.targetType === 'post';
+  const isPostModerated = !!modMsg && modMsg.targetType === 'post';
+
+  // Check for user moderation in this cell
+  const userModMsg = Object.values(messageManager.messageCache.moderations).find(
+    m => m.targetType === 'user' && m.cellId === postMessage.cellId && m.targetId === postMessage.author
+  );
+  const isUserModerated = !!userModMsg;
 
   return {
     id: postMessage.id,
@@ -61,10 +68,10 @@ export const transformPost = (
     downvotes: downvotes,
     signature: postMessage.signature,
     browserPubKey: postMessage.browserPubKey,
-    moderated: isModerated,
-    moderatedBy: isModerated ? modMsg.author : undefined,
-    moderationReason: isModerated ? modMsg.reason : undefined,
-    moderationTimestamp: isModerated ? modMsg.timestamp : undefined,
+    moderated: isPostModerated || isUserModerated,
+    moderatedBy: isPostModerated ? modMsg.author : isUserModerated ? userModMsg!.author : undefined,
+    moderationReason: isPostModerated ? modMsg.reason : isUserModerated ? userModMsg!.reason : undefined,
+    moderationTimestamp: isPostModerated ? modMsg.timestamp : isUserModerated ? userModMsg!.timestamp : undefined,
   };
 };
 
@@ -92,9 +99,15 @@ export const transformComment = (
   const upvotes = filteredVotes.filter(vote => vote.value === 1);
   const downvotes = filteredVotes.filter(vote => vote.value === -1);
 
-  // Check for moderation
+  // Check for comment moderation
   const modMsg = messageManager.messageCache.moderations[commentMessage.id];
-  const isModerated = !!modMsg && modMsg.targetType === 'comment';
+  const isCommentModerated = !!modMsg && modMsg.targetType === 'comment';
+
+  // Check for user moderation in this cell
+  const userModMsg = Object.values(messageManager.messageCache.moderations).find(
+    m => m.targetType === 'user' && m.cellId === commentMessage.postId.split('-')[0] && m.targetId === commentMessage.author
+  );
+  const isUserModerated = !!userModMsg;
 
   return {
     id: commentMessage.id,
@@ -106,10 +119,10 @@ export const transformComment = (
     downvotes: downvotes,
     signature: commentMessage.signature,
     browserPubKey: commentMessage.browserPubKey,
-    moderated: isModerated,
-    moderatedBy: isModerated ? modMsg.author : undefined,
-    moderationReason: isModerated ? modMsg.reason : undefined,
-    moderationTimestamp: isModerated ? modMsg.timestamp : undefined,
+    moderated: isCommentModerated || isUserModerated,
+    moderatedBy: isCommentModerated ? modMsg.author : isUserModerated ? userModMsg!.author : undefined,
+    moderationReason: isCommentModerated ? modMsg.reason : isUserModerated ? userModMsg!.reason : undefined,
+    moderationTimestamp: isCommentModerated ? modMsg.timestamp : isUserModerated ? userModMsg!.timestamp : undefined,
   };
 };
 

src/lib/waku/types.ts

@@ -68,8 +68,8 @@ export interface VoteMessage extends BaseMessage {
 export interface ModerateMessage extends BaseMessage {
   type: MessageType.MODERATE;
   cellId: string;
-  targetType: 'post' | 'comment';
-  targetId: string;
+  targetType: 'post' | 'comment' | 'user';
+  targetId: string; // postId, commentId, or user address (for user moderation)
   reason?: string;
 }