1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
import { Router, Response, Request } from "express";
import {
Attachment,
Channel,
ChannelType,
Config,
DmChannelDTO,
Embed,
emitEvent,
getPermission,
Message,
MessageCreateEvent,
uploadFile
} from "@fosscord/util";
import { HTTPError } from "lambert-server";
import { handleMessage, postHandleMessage, route } from "@fosscord/api";
import multer from "multer";
import { FindManyOptions, LessThan, MoreThan } from "typeorm";
import { URL } from "url";
const router: Router = Router();
export default router;
function isTextChannel(type: ChannelType): boolean {
switch (type) {
case ChannelType.GUILD_STORE:
case ChannelType.GUILD_VOICE:
case ChannelType.GUILD_STAGE_VOICE:
case ChannelType.GUILD_CATEGORY:
throw new HTTPError("not a text channel", 400);
case ChannelType.DM:
case ChannelType.GROUP_DM:
case ChannelType.GUILD_NEWS:
case ChannelType.GUILD_NEWS_THREAD:
case ChannelType.GUILD_PUBLIC_THREAD:
case ChannelType.GUILD_PRIVATE_THREAD:
case ChannelType.GUILD_TEXT:
return true;
}
}
module.exports.isTextChannel = isTextChannel;
export interface MessageCreateSchema {
content?: string;
nonce?: string;
tts?: boolean;
flags?: string;
embeds?: Embed[];
embed?: Embed;
// TODO: ^ embed is deprecated in favor of embeds (https://discord.com/developers/docs/resources/channel#message-object)
allowed_mentions?: {
parse?: string[];
roles?: string[];
users?: string[];
replied_user?: boolean;
};
message_reference?: {
message_id: string;
channel_id: string;
guild_id?: string;
fail_if_not_exists?: boolean;
};
payload_json?: string;
file?: any;
attachments?: any[]; //TODO we should create an interface for attachments
}
// https://discord.com/developers/docs/resources/channel#create-message
// get messages
router.get("/", async (req: Request, res: Response) => {
const channel_id = req.params.channel_id;
const channel = await Channel.findOneOrFail({ id: channel_id });
if (!channel) throw new HTTPError("Channel not found", 404);
isTextChannel(channel.type);
const around = req.query.around ? `${req.query.around}` : undefined;
const before = req.query.before ? `${req.query.before}` : undefined;
const after = req.query.after ? `${req.query.after}` : undefined;
const limit = Number(req.query.limit) || 50;
if (limit < 1 || limit > 100) throw new HTTPError("limit must be between 1 and 100");
var halfLimit = Math.floor(limit / 2);
const permissions = await getPermission(req.user_id, channel.guild_id, channel_id);
permissions.hasThrow("VIEW_CHANNEL");
if (!permissions.has("READ_MESSAGE_HISTORY")) return res.json([]);
var query: FindManyOptions<Message> & { where: { id?: any } } = {
order: { id: "DESC" },
take: limit,
where: { channel_id },
relations: ["author", "webhook", "application", "mentions", "mention_roles", "mention_channels", "sticker_items", "attachments"]
};
if (after) query.where.id = MoreThan(after);
else if (before) query.where.id = LessThan(before);
else if (around) {
query.where.id = [
MoreThan((BigInt(around) - BigInt(halfLimit)).toString()),
LessThan((BigInt(around) + BigInt(halfLimit)).toString())
];
}
const messages = await Message.find(query);
const endpoint = Config.get().cdn.endpointPublic;
return res.json(
messages.map((x) => {
(x.reactions || []).forEach((x: any) => {
// @ts-ignore
if ((x.user_ids || []).includes(req.user_id)) x.me = true;
// @ts-ignore
delete x.user_ids;
});
// @ts-ignore
if (!x.author) x.author = { discriminator: "0000", username: "Deleted User", public_flags: "0", avatar: null };
x.attachments?.forEach((x) => {
// dynamically set attachment proxy_url in case the endpoint changed
const uri = x.proxy_url.startsWith("http") ? x.proxy_url : `https://example.org${x.proxy_url}`;
x.proxy_url = `${endpoint == null ? "http://localhost:3003" : endpoint}${new URL(uri).pathname}`;
});
return x;
})
);
});
// TODO: config max upload size
const messageUpload = multer({
limits: {
fileSize: 1024 * 1024 * 100,
fields: 10,
files: 1
},
storage: multer.memoryStorage()
}); // max upload 50 mb
// TODO: dynamically change limit of MessageCreateSchema with config
// TODO: check: sum of all characters in an embed structure must not exceed 6000 characters
// https://discord.com/developers/docs/resources/channel#create-message
// TODO: text channel slowdown
// TODO: trim and replace message content and every embed field
// TODO: check allowed_mentions
// Send message
router.post(
"/",
messageUpload.single("file"),
async (req, res, next) => {
if (req.body.payload_json) {
req.body = JSON.parse(req.body.payload_json);
}
next();
},
route({ body: "MessageCreateSchema", permission: "SEND_MESSAGES" }),
async (req: Request, res: Response) => {
const { channel_id } = req.params;
var body = req.body as MessageCreateSchema;
const attachments: Attachment[] = [];
if (req.file) {
try {
const file = await uploadFile(`/attachments/${req.params.channel_id}`, req.file);
attachments.push({ ...file, proxy_url: file.url });
} catch (error) {
return res.status(400).json(error);
}
}
const channel = await Channel.findOneOrFail({ where: { id: channel_id }, relations: ["recipients", "recipients.user"] });
const embeds = [];
if (body.embed) embeds.push(body.embed);
let message = await handleMessage({
...body,
type: 0,
pinned: false,
author_id: req.user_id,
embeds,
channel_id,
attachments,
edited_timestamp: undefined,
timestamp: new Date()
});
message = await message.save();
await channel.assign({ last_message_id: message.id }).save();
if (channel.isDm()) {
const channel_dto = await DmChannelDTO.from(channel);
for (let recipient of channel.recipients!) {
if (recipient.closed) {
await emitEvent({
event: "CHANNEL_CREATE",
data: channel_dto.excludedRecipients([recipient.user_id]),
user_id: recipient.user_id
});
}
}
//Only one recipients should be closed here, since in group DMs the recipient is deleted not closed
await Promise.all(
channel
.recipients!.filter((r) => r.closed)
.map(async (r) => {
r.closed = false;
return await r.save();
})
);
}
await emitEvent({ event: "MESSAGE_CREATE", channel_id: channel_id, data: message } as MessageCreateEvent);
postHandleMessage(message).catch((e) => {}); // no await as it shouldnt block the message send function and silently catch error
return res.json(message);
}
);
|
