Send/Receive support for reaction read syncs

ts/util/isConversationAccepted.ts

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+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { ConversationAttributesType } from '../model-types.d';
+import { isDirectConversation, isMe } from './whatTypeOfConversation';
+
+/**
+ * Determine if this conversation should be considered "accepted" in terms
+ * of message requests
+ */
+export function isConversationAccepted(
+  conversationAttrs: ConversationAttributesType
+): boolean {
+  const messageRequestsEnabled = window.Signal.RemoteConfig.isEnabled(
+    'desktop.messageRequests'
+  );
+
+  if (!messageRequestsEnabled) {
+    return true;
+  }
+
+  if (isMe(conversationAttrs)) {
+    return true;
+  }
+
+  const messageRequestEnum =
+    window.textsecure.protobuf.SyncMessage.MessageRequestResponse.Type;
+
+  const { messageRequestResponseType } = conversationAttrs;
+  if (messageRequestResponseType === messageRequestEnum.ACCEPT) {
+    return true;
+  }
+
+  const { sentMessageCount } = conversationAttrs;
+
+  const hasSentMessages = sentMessageCount > 0;
+  const hasMessagesBeforeMessageRequests =
+    (conversationAttrs.messageCountBeforeMessageRequests || 0) > 0;
+  const hasNoMessages = (conversationAttrs.messageCount || 0) === 0;
+
+  const isEmptyPrivateConvo =
+    hasNoMessages && isDirectConversation(conversationAttrs);
+  const isEmptyWhitelistedGroup =
+    hasNoMessages &&
+    !isDirectConversation(conversationAttrs) &&
+    conversationAttrs.profileSharing;
+
+  return (
+    isFromOrAddedByTrustedContact(conversationAttrs) ||
+    hasSentMessages ||
+    hasMessagesBeforeMessageRequests ||
+    // an empty group is the scenario where we need to rely on
+    // whether the profile has already been shared or not
+    isEmptyPrivateConvo ||
+    isEmptyWhitelistedGroup
+  );
+}
+
+// Is this someone who is a contact, or are we sharing our profile with them?
+//   Or is the person who added us to this group a contact or are we sharing profile
+//   with them?
+function isFromOrAddedByTrustedContact(
+  conversationAttrs: ConversationAttributesType
+): boolean {
+  if (isDirectConversation(conversationAttrs)) {
+    return Boolean(conversationAttrs.name || conversationAttrs.profileSharing);
+  }
+
+  const { addedBy } = conversationAttrs;
+  if (!addedBy) {
+    return false;
+  }
+
+  const conversation = window.ConversationController.get(addedBy);
+  if (!conversation) {
+    return false;
+  }
+
+  return Boolean(
+    isMe(conversation.attributes) ||
+      conversation.get('name') ||
+      conversation.get('profileSharing')
+  );
+}