MessageEvents: Support sendMessage with attachments (#1023)

src/api/MessageEvents.ts

@@ -36,10 +36,36 @@ export interface Emoji {
 export interface MessageObject {
     content: string,
     validNonShortcutEmojis: Emoji[];
+    invalidEmojis: any[];
+    tts: boolean;
 }
 
+export interface Upload {
+    classification: string;
+    currentSize: number;
+    description: string | null;
+    filename: string;
+    id: string;
+    isImage: boolean;
+    isVideo: boolean;
+    item: {
+        file: File;
+        platform: number;
+    };
+    loaded: number;
+    mimeType: string;
+    preCompressionSize: number;
+    responseUrl: string;
+    sensitive: boolean;
+    showLargeMessageDialog: boolean;
+    spoiler: boolean;
+    status: "NOT_STARTED" | "STARTED" | "UPLOADING" | "ERROR" | "COMPLETED" | "CANCELLED";
+    uniqueId: string;
+    uploadedFilename: string;
+}
 export interface MessageExtra {
     stickerIds?: string[];
+    uploads?: Upload[];
 }
 
 export type SendListener = (channelId: string, messageObj: MessageObject, extra: MessageExtra) => Promisable<void | { cancel: boolean; }>;
@@ -48,7 +74,8 @@ export type EditListener = (channelId: string, messageId: string, messageObj: Me
 const sendListeners = new Set<SendListener>();
 const editListeners = new Set<EditListener>();
 
-export async function _handlePreSend(channelId: string, messageObj: MessageObject, extra: MessageExtra) {
+export async function _handlePreSend(channelId: string, messageObj: MessageObject, extra: MessageExtra, uploads: Upload[]) {
+    extra.uploads = uploads;
     for (const listener of sendListeners) {
         try {
             const result = await listener(channelId, messageObj, extra);

src/plugins/apiMessageEvents.ts

@@ -22,17 +22,25 @@ import definePlugin from "@utils/types";
 export default definePlugin({
     name: "MessageEventsAPI",
     description: "Api required by anything using message events.",
-    authors: [Devs.Arjix, Devs.hunt],
+    authors: [Devs.Arjix, Devs.hunt, Devs.Ven],
     patches: [
         {
             find: '"MessageActionCreators"',
-            replacement: [{
+            replacement: {
-                match: /_sendMessage:(function\([^)]+\)){/,
+                // editMessage: function (...) {
-                replace: "_sendMessage:async $1{if(await Vencord.Api.MessageEvents._handlePreSend(...arguments))return;"
+                match: /\beditMessage:(function\(.+?\))\{/,
-            }, {
+                // editMessage: async function (...) { await handlePreEdit(...); ...
-                match: /\beditMessage:(function\([^)]+\)){/,
                 replace: "editMessage:async $1{await Vencord.Api.MessageEvents._handlePreEdit(...arguments);"
-            }]
+            }
+        },
+        {
+            find: ".handleSendMessage=",
+            replacement: {
+                // checkIsMessageValid().then((function (isValidData) { ... getSendMessageOptionsForReply(data); ... sendMessage(channel.id, msg, void 0, mergeMessageSendOptions(...))
+                match: /(?<=uploads:(\i),channel:\i\}\)\.then\(\()function\((\i)\)\{(var \i=\i\.valid.+?\.getSendMessageOptionsForReply\(\i\);)(?=.+?\.sendMessage\((\i)\.id,(\i),void 0,(\i\(.+?)\):)/,
+                // checkIsMessageValid().then((async function (isValidData) { ...; if (await handlePresend(channel.id, msg, extra)) return; ...
+                replace: "async function($2){$3 if (await Vencord.Api.MessageEvents._handlePreSend($4.id,$5,$6,$1)) return {shouldClear:true,shouldRefocus:true};"
+            }
         },
         {
             find: '("interactionUsernameProfile',