feat: add action get_group_file_url

src/core/apis/packet.ts

@@ -11,6 +11,7 @@ import { OidbSvcTrpcTcp0XFE1_2RSP } from '@/core/packet/proto/oidb/Oidb.0XFE1_2'
 import { LogWrapper } from "@/common/log";
 import { SendLongMsgResp } from "@/core/packet/proto/message/action";
 import { PacketMsg } from "@/core/packet/msg/message";
+import { OidbSvcTrpcTcp0x6D6Response } from "@/core/packet/proto/oidb/Oidb.0x6D6";
 
 interface OffsetType {
     [key: string]: {
@@ -112,4 +113,15 @@ export class NTQQPacketApi {
         const resp = new NapProtoMsg(SendLongMsgResp).decode(Buffer.from(ret.hex_data, 'hex'));
         return resp.result.resId;
     }
+
+    async sendGroupFileDownloadReq(groupUin: number, fileUUID: string) {
+        const data = this.packetPacker.packGroupFileDownloadReq(groupUin, fileUUID);
+        const ret = await this.sendPacket('OidbSvcTrpcTcp.0x6d6_2', data, true);
+        const body = new NapProtoMsg(OidbSvcTrpcTcpBaseRsp).decode(Buffer.from(ret.hex_data, 'hex')).body;
+        const resp = new NapProtoMsg(OidbSvcTrpcTcp0x6D6Response).decode(body);
+        if (resp.download.retCode !== 0){
+            throw new Error(`sendGroupFileDownloadReq error: ${resp.download.clientWording}`);
+        }
+        return `https://${resp.download.downloadDns}/ftn_handler/${Buffer.from(resp.download.downloadUrl).toString('hex')}/?fname=`
+    }
 }

src/core/packet/packer.ts

@@ -288,14 +288,14 @@ export class PacketPacker {
 
     packGroupFileDownloadReq(groupUin: number, fileUUID: string): PacketHexStr {
         return this.toHexStr(
-            new NapProtoMsg(OidbSvcTrpcTcp0x6D6).encode({
+            this.packOidbPacket(0x6D6, 2, new NapProtoMsg(OidbSvcTrpcTcp0x6D6).encode({
                 download: {
                     groupUin: groupUin,
                     appId: 7,
                     busId: 102,
                     fileId: fileUUID
                 }
-            })
+            }), true, false)
         )
     }
 

src/onebot/action/file/GetGroupFileUrl.ts

@@ -0,0 +1,37 @@
+import BaseAction from '../BaseAction';
+import { ActionName } from '../types';
+import { FromSchema, JSONSchema } from 'json-schema-to-ts';
+import {FileNapCatOneBotUUID} from "@/common/helper";
+
+const SchemaData = {
+    type: 'object',
+    properties: {
+        group_id: { type: ['number', 'string'] },
+        file_id: { type: ['string'] },
+    },
+    required: ['group_id', 'file_id'],
+} as const satisfies JSONSchema;
+
+type Payload = FromSchema<typeof SchemaData>;
+
+interface GetGroupFileUrlResponse {
+    url?: string;
+}
+
+export class GetGroupFileUrl extends BaseAction<Payload, GetGroupFileUrlResponse> {
+    actionName = ActionName.GOCQHTTP_GetGroupFileUrl;
+    payloadSchema = SchemaData;
+
+    async _handle(payload: Payload) {
+        if (!this.core.apis.PacketApi.available) {
+            throw new Error('PacketClient is not init');
+        }
+        const contextMsgFile = FileNapCatOneBotUUID.decode(payload.file_id) || FileNapCatOneBotUUID.decodeModelId(payload.file_id);
+        if (contextMsgFile?.fileUUID) {
+            return {
+                url: await this.core.apis.PacketApi.sendGroupFileDownloadReq(+payload.group_id, contextMsgFile.fileUUID)
+            }
+        }
+        throw new Error('real fileUUID not found!');
+    }
+}

src/onebot/action/index.ts

@@ -90,6 +90,7 @@ import { SetSpecialTittle } from './extends/SetSpecialTittle';
 import { UploadForwardMsg } from "@/onebot/action/extends/UploadForwardMsg";
 import { GetGroupShutList } from './group/GetGroupShutList';
 import { GetGroupMemberList } from './group/GetGroupMemberList';
+import { GetGroupFileUrl } from "@/onebot/action/file/GetGroupFileUrl";
 
 
 export type ActionMap = Map<string, BaseAction<any, any>>;
@@ -192,6 +193,7 @@ export function createActionMap(obContext: NapCatOneBot11Adapter, core: NapCatCo
         new SetSpecialTittle(obContext, core),
         new UploadForwardMsg(obContext, core),
         new GetGroupShutList(obContext, core),
+        new GetGroupFileUrl(obContext, core),
     ];
     const actionMap = new Map();
     for (const action of actionHandlers) {

src/onebot/action/types.ts

@@ -85,6 +85,7 @@ export enum ActionName {
     MarkGroupMsgAsRead = 'mark_group_msg_as_read',
     GoCQHTTP_UploadGroupFile = 'upload_group_file',
     GOCQHTTP_DeleteGroupFile = 'delete_group_file',
+    GOCQHTTP_GetGroupFileUrl = 'get_group_file_url',
     GoCQHTTP_CreateGroupFileFolder = 'create_group_file_folder',
     GoCQHTTP_DeleteGroupFileFolder = 'delete_group_file_folder',
     GoCQHTTP_GetGroupFileSystemInfo = 'get_group_file_system_info',