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
|
import * as fs from "fs";
import * as path from "path";
import { z } from "zod";
import serverConfig from "./config";
const ROOT_PATH = path.join(serverConfig.dataDir, "assets");
export const enum ASSET_TYPES {
IMAGE_JPEG = "image/jpeg",
IMAGE_PNG = "image/png",
IMAGE_WEBP = "image/webp",
APPLICATION_PDF = "application/pdf",
TEXT_HTML = "text/html",
}
export const IMAGE_ASSET_TYPES: Set<string> = new Set<string>([
ASSET_TYPES.IMAGE_JPEG,
ASSET_TYPES.IMAGE_PNG,
ASSET_TYPES.IMAGE_WEBP,
]);
// The assets that we allow the users to upload
export const SUPPORTED_UPLOAD_ASSET_TYPES: Set<string> = new Set<string>([
...IMAGE_ASSET_TYPES,
ASSET_TYPES.APPLICATION_PDF,
]);
// The assets that we support saving in the asset db
export const SUPPORTED_ASSET_TYPES: Set<string> = new Set<string>([
...SUPPORTED_UPLOAD_ASSET_TYPES,
ASSET_TYPES.TEXT_HTML,
]);
function getAssetDir(userId: string, assetId: string) {
return path.join(ROOT_PATH, userId, assetId);
}
export const zAssetMetadataSchema = z.object({
contentType: z.string(),
fileName: z.string().nullish(),
});
export function newAssetId() {
return crypto.randomUUID();
}
export async function saveAsset({
userId,
assetId,
asset,
metadata,
}: {
userId: string;
assetId: string;
asset: Buffer;
metadata: z.infer<typeof zAssetMetadataSchema>;
}) {
if (!SUPPORTED_ASSET_TYPES.has(metadata.contentType)) {
throw new Error("Unsupported asset type");
}
const assetDir = getAssetDir(userId, assetId);
await fs.promises.mkdir(assetDir, { recursive: true });
await Promise.all([
fs.promises.writeFile(path.join(assetDir, "asset.bin"), asset),
fs.promises.writeFile(
path.join(assetDir, "metadata.json"),
JSON.stringify(metadata),
),
]);
}
export async function saveAssetFromFile({
userId,
assetId,
assetPath,
metadata,
}: {
userId: string;
assetId: string;
assetPath: string;
metadata: z.infer<typeof zAssetMetadataSchema>;
}) {
if (!SUPPORTED_ASSET_TYPES.has(metadata.contentType)) {
throw new Error("Unsupported asset type");
}
const assetDir = getAssetDir(userId, assetId);
await fs.promises.mkdir(assetDir, { recursive: true });
await Promise.all([
// We'll have to copy first then delete the original file as inside the docker container
// we can't move file between mounts.
fs.promises.copyFile(assetPath, path.join(assetDir, "asset.bin")),
fs.promises.writeFile(
path.join(assetDir, "metadata.json"),
JSON.stringify(metadata),
),
]);
await fs.promises.rm(assetPath);
}
export async function readAsset({
userId,
assetId,
}: {
userId: string;
assetId: string;
}) {
const assetDir = getAssetDir(userId, assetId);
const [asset, metadataStr] = await Promise.all([
fs.promises.readFile(path.join(assetDir, "asset.bin")),
fs.promises.readFile(path.join(assetDir, "metadata.json"), {
encoding: "utf8",
}),
]);
const metadata = zAssetMetadataSchema.parse(JSON.parse(metadataStr));
return { asset, metadata };
}
export async function getAssetSize({
userId,
assetId,
}: {
userId: string;
assetId: string;
}) {
const assetDir = getAssetDir(userId, assetId);
const stat = await fs.promises.stat(path.join(assetDir, "asset.bin"));
return stat.size;
}
export async function deleteAsset({
userId,
assetId,
}: {
userId: string;
assetId: string;
}) {
const assetDir = getAssetDir(userId, assetId);
await fs.promises.rm(path.join(assetDir), { recursive: true });
}
export async function deleteUserAssets({ userId }: { userId: string }) {
const userDir = path.join(ROOT_PATH, userId);
const dirExists = await fs.promises
.access(userDir)
.then(() => true)
.catch(() => false);
if (!dirExists) {
return;
}
await fs.promises.rm(userDir, { recursive: true });
}
|
