The image API no longer uses a unique thread for each job (due to image processing using its own thread anyway), added dummy DB driver

utils/database/dummy.js

@@ -0,0 +1,26 @@
+// dummy (no-op) database handler
+const misc = require("../misc.js");
+
+exports.setup = async () => {};
+exports.stop = async () => {};
+exports.fixGuild = async () => {};
+exports.addCount = async () => {};
+exports.getCounts = async () => {
+  return {};
+};
+exports.disableChannel = async () => {};
+exports.enableChannel = async () => {};
+exports.toggleTags = async () => {};
+exports.setTag = async () => {};
+exports.removeTag = async () => {};
+exports.setPrefix = async () => {};
+exports.addGuild = async (guild) => {
+  return {
+    id: guild.id,
+    tags: misc.tagDefaults,
+    prefix: process.env.PREFIX,
+    disabled: [],
+    tagsDisabled: false,
+  };
+};
+exports.getGuild = exports.addGuild;

utils/imagedetect.js

@@ -66,7 +66,7 @@ const checkImages = async (message) => {
     if (message.embeds[0].type === "gifv") {
       type = await getImage(message.embeds[0].video.url, message.embeds[0].url, true);
     // then we check for other image types
-    } else if (message.embeds[0].type === "video" || message.embeds[0].type === "image") {
+    } else if ((message.embeds[0].type === "video" || message.embeds[0].type === "image") && message.embeds[0].thumbnail) {
       type = await getImage(message.embeds[0].thumbnail.proxy_url, message.embeds[0].thumbnail.url);
     // finally we check both possible image fields for "generic" embeds
     } else if (message.embeds[0].type === "rich") {