From 40dc395dffa9f1980b1340142543a83441e949e4 Mon Sep 17 00:00:00 2001
From: Roland Osborne <roland.osborne@gmail.com>
Date: Wed, 14 Dec 2022 12:18:48 -0800
Subject: [PATCH] support updating subject on sealed channels in webapp

---
 net/web/src/api/setChannelSubject.js          |  5 +-
 net/web/src/context/useChannelContext.hook.js | 24 ++++++++-
 net/web/src/session/details/Details.jsx       | 31 +++++++++---
 net/web/src/session/details/Details.styled.js |  3 --
 .../src/session/details/useDetails.hook.js    | 50 ++++++++++++++++---
 5 files changed, 90 insertions(+), 23 deletions(-)

diff --git a/net/web/src/api/setChannelSubject.js b/net/web/src/api/setChannelSubject.js
index 49c95e04..8dd6a080 100644
--- a/net/web/src/api/setChannelSubject.js
+++ b/net/web/src/api/setChannelSubject.js
@@ -1,8 +1,7 @@
 import { checkResponse, fetchWithTimeout } from './fetchUtil';
 
-export async function setChannelSubject(token, channelId, subject ) {
-  let data = { subject };
-  let params = { dataType: 'superbasic', data: JSON.stringify(data) };
+export async function setChannelSubject(token, channelId, dataType, data ) {
+  let params = { dataType, data: JSON.stringify(data) };
   let channel = await fetchWithTimeout(`/content/channels/${channelId}/subject?agent=${token}`, { method: 'PUT', body: JSON.stringify(params)} );
   checkResponse(channel);
   return await channel.json();
diff --git a/net/web/src/context/useChannelContext.hook.js b/net/web/src/context/useChannelContext.hook.js
index d6f0d42f..5d59e211 100644
--- a/net/web/src/context/useChannelContext.hook.js
+++ b/net/web/src/context/useChannelContext.hook.js
@@ -48,7 +48,7 @@ export function useChannelContext() {
           else {
             let detail = await getChannelDetail(access.current, channel.id);
             cur.data.channelDetail = detail;
-            cur.data.unsealedSubject = null;
+            cur.data.unsealedChannel = null;
           }
           cur.data.detailRevision = channel.data.detailRevision;
         }
@@ -151,7 +151,27 @@ export function useChannelContext() {
       });
     },
     setChannelSubject: async (channelId, subject) => {
-      return await setChannelSubject(access.current, channelId, subject);
+      return await setChannelSubject(access.current, channelId, 'superbasic', { subject });
+    },
+    setChannelSealedSubject: async (channelId, subject, sealKey) => {
+      const channel = channels.current.get(channelId);
+
+      let { seals, subjectEncrypted, subjectIv } = JSON.parse(channel.data.channelDetail.data);
+      seals.forEach(seal => {
+        if (seal.publicKey === sealKey.public) {
+          let crypto = new JSEncrypt();
+          crypto.setPrivateKey(sealKey.private);
+          const unsealedKey = crypto.decrypt(seal.sealedKey);
+          const key = CryptoJS.enc.Hex.parse(unsealedKey);
+
+          const iv = CryptoJS.lib.WordArray.random(128 / 8);
+          const encrypted = CryptoJS.AES.encrypt(JSON.stringify({ subject }), key, { iv: iv });
+          subjectEncrypted = encrypted.ciphertext.toString(CryptoJS.enc.Base64)
+          subjectIv = iv.toString();
+        }
+      });
+      const data = { subjectEncrypted, subjectIv, seals };
+      return await setChannelSubject(access.current, channelId, 'sealed', data);
     },
     setChannelCard: async (channelId, cardId) => {
       return await setChannelCard(access.current, channelId, cardId);
diff --git a/net/web/src/session/details/Details.jsx b/net/web/src/session/details/Details.jsx
index a1633fc2..0b6df911 100644
--- a/net/web/src/session/details/Details.jsx
+++ b/net/web/src/session/details/Details.jsx
@@ -7,6 +7,7 @@ import { EditOutlined, ExclamationCircleOutlined } from '@ant-design/icons';
 import { CardSelect } from '../cardSelect/CardSelect';
 import { EditSubject } from './editSubject/EditSubject';
 import { EditMembers } from './editMembers/EditMembers';
+import { UnlockOutlined, LockFilled } from '@ant-design/icons';
 
 export function Details({ cardId, channelId, closeDetails, closeConversation, openContact }) {
 
@@ -117,15 +118,31 @@ export function Details({ cardId, channelId, closeDetails, closeConversation, op
           </div>
           <div class="stats">
             { state.host && (
-              <div class="subject edit" onClick={actions.setEditSubject}>
-                <Space>
-                  <div>{ state.subject }</div>
-                  <EditOutlined />
-                </Space>
+              <div class="subject" onClick={actions.setEditSubject}>
+                { state.locked && !state.unlocked && (
+                  <LockFilled style={{ paddingRight: 4 }} />
+                )}
+                { state.locked && state.unlocked && (
+                  <UnlockOutlined style={{ paddingRight: 4 }} />
+                )}
+                <span>{ state.subject }</span>
+                { state.editable && (
+                  <span class="edit" onClick={actions.setEditSubject}>
+                    <EditOutlined style={{ paddingLeft: 4 }}/>
+                  </span>
+                )}
               </div>
             )}
             { !state.host && (
-              <div class="subject">{ state.subject }</div>
+              <div class="subject">
+                { state.locked && !state.unlocked && (
+                  <LockFilled style={{ paddingRight: 4 }} />
+                )}
+                { state.locked && state.unlocked && (
+                  <UnlockOutlined style={{ paddingRight: 4 }} />
+                )}
+                <span>{ state.subject }</span>
+              </div>
             )}
             { state.host && (
               <div class="host">host</div>
@@ -139,7 +156,7 @@ export function Details({ cardId, channelId, closeDetails, closeConversation, op
         { state.host && (
           <div class="button" onClick={deleteChannel}>Delete Topic</div>
         )}
-        { state.host && (
+        { state.host && !state.locked && (
           <div class="button" onClick={actions.setEditMembers}>Edit Membership</div>
         )}
         { !state.host && (
diff --git a/net/web/src/session/details/Details.styled.js b/net/web/src/session/details/Details.styled.js
index b23d6a2f..72c9dd13 100644
--- a/net/web/src/session/details/Details.styled.js
+++ b/net/web/src/session/details/Details.styled.js
@@ -90,9 +90,6 @@ export const DetailsWrapper = styled.div`
         padding-left: 16px;
 
         .edit {
-          display: flex;
-          flex-direction: row;
-          align-items: center;
           cursor: pointer;
         }
 
diff --git a/net/web/src/session/details/useDetails.hook.js b/net/web/src/session/details/useDetails.hook.js
index a0222bfe..74ba9e7e 100644
--- a/net/web/src/session/details/useDetails.hook.js
+++ b/net/web/src/session/details/useDetails.hook.js
@@ -1,6 +1,7 @@
 import { useContext, useState, useEffect } from 'react';
 import { CardContext } from 'context/CardContext';
 import { ChannelContext } from 'context/ChannelContext';
+import { AccountContext } from 'context/AccountContext';
 import { ViewportContext } from 'context/ViewportContext';
 
 export function useDetails(cardId, channelId) {
@@ -20,9 +21,13 @@ export function useDetails(cardId, channelId) {
     subjectUpdate: null,
     unknown: 0,
     display: null,
+    locked: false,
+    unlocked: false,
+    editable: false,
   });
 
   const card = useContext(CardContext);
+  const account = useContext(AccountContext);
   const channel = useContext(ChannelContext);
   const viewport = useContext(ViewportContext);  
 
@@ -35,7 +40,7 @@ export function useDetails(cardId, channelId) {
   }, [viewport]);
 
   useEffect(() => {
-    let img, subject, subjectUpdate, host, started, contacts
+    let img, subject, subjectUpdate, host, started, contacts, locked, unlocked, editable;
     let chan;
     if (cardId) {
       const cardChan = card.state.cards.get(cardId);
@@ -60,10 +65,34 @@ export function useDetails(cardId, channelId) {
         img = 'team';
         subject = 'Conversation'
       }
-      const parsed = JSON.parse(chan.data.channelDetail.data);
-      if (parsed.subject) {
-        subject = parsed.subject;
-        subjectUpdate = subject;
+      if (chan.data.channelDetail.dataType === 'sealed') {
+        editable = false;
+        try {
+          const seals = JSON.parse(chan.data.channelDetail.data).seals;
+          seals.forEach(seal => {
+            if (account.state.sealKey.public === seal.publicKey) {
+              editable = true;
+            }
+          });
+        }
+        catch (err) {
+          console.log(err);
+        }
+        locked = true;
+        unlocked = chan.data.unsealedChannel != null;
+        if (chan.data.unsealedChannel?.subject) {
+          subject = chan.data.unsealedChannel.subject;
+          subjectUpdate = subject;
+        }
+      }
+      else {
+        locked = false;
+        editable = (chan.cardId == null);
+        const parsed = JSON.parse(chan.data.channelDetail.data);
+        if (parsed.subject) {
+          subject = parsed.subject;
+          subjectUpdate = subject;
+        }
       }
       const date = new Date(chan.data.channelDetail.created * 1000);
       const now = new Date();
@@ -96,8 +125,8 @@ export function useDetails(cardId, channelId) {
       }
     });
 
-    updateState({ img, subject, host, started, contacts, members, unknown, subjectUpdate });
-  }, [cardId, channelId, card, channel]);
+    updateState({ img, subject, host, started, contacts, members, unknown, subjectUpdate, locked, unlocked, editable });
+  }, [cardId, channelId, card, channel, account]);
 
   const actions = {
     setEditSubject: () => {
@@ -113,7 +142,12 @@ export function useDetails(cardId, channelId) {
       if (!state.busy) {
         try {
           updateState({ busy: true });
-          channel.actions.setChannelSubject(channelId, state.subjectUpdate);
+          if (state.locked) {
+            channel.actions.setChannelSealedSubject(channelId, state.subjectUpdate, account.state.sealKey);
+          }
+          else {
+            channel.actions.setChannelSubject(channelId, state.subjectUpdate);
+          }
           updateState({ busy: false });
         }
         catch(err) {