Retry initialiseRandomPool some times if request fails, fix uncaught promise in sendMessage

js/modules/loki_message_api.js

@@ -119,8 +119,15 @@ class LokiMessageAPI {
       data: data64,
     };
     const promises = [];
+    let completedConnections = 0;
     for (let i = 0; i < numConnections; i += 1) {
-      promises.push(this.openSendConnection(params));
+      const connectionPromise = this.openSendConnection(params).finally(() => {
+        completedConnections += 1;
+        if (completedConnections >= numConnections) {
+          delete this.sendingSwarmNodes[timestamp];
+        }
+      });
+      promises.push(connectionPromise);
     }
 
     // Taken from https://stackoverflow.com/questions/51160260/clean-way-to-wait-for-first-true-returned-by-promise
@@ -142,7 +149,6 @@ class LokiMessageAPI {
     let success;
     try {
       // eslint-disable-next-line more/no-then
-      Promise.all(promises).then(delete this.sendingSwarmNodes[timestamp]);
       success = await firstTrue(promises);
     } catch (e) {
       if (e instanceof textsecure.WrongDifficultyError) {

js/modules/loki_snode_api.js

@@ -86,7 +86,7 @@ class LokiSnodeAPI {
     ];
   }
 
-  async initialiseRandomPool() {
+  async initialiseRandomPool(attempts = 0) {
     const params = {
       limit: 20,
       fields: {
@@ -113,7 +113,10 @@ class LokiSnodeAPI {
         port: snode.storage_port,
       }));
     } catch (e) {
-      throw new window.textsecure.SeedNodeError('Failed to contact seed node');
+      if (attempts >= window.seedNodeList.length) {
+        throw new window.textsecure.SeedNodeError('Failed to contact seed node');
+      }
+      this.initialiseRandomPool(attempts + 1);
     }
   }