zero-knowledge file sharing
/info endpoint
+33
-17
+5
-7
public/view.html
+5
-7
public/view.html
···
19
19
>
20
20
</h1>
21
21
22
-
<!-- Metadata card (shown after HEAD) -->
22
+
<!-- Metadata card (shown after /info) -->
23
23
<div id="meta" class="hidden">
24
24
<div class="font-mono text-base mb-1" id="meta-name"></div>
25
25
<div class="flex gap-3 text-muted text-xs mb-1">
···
262
262
263
263
const key = await importKey(keyEncoded);
264
264
265
-
// HEAD — get metadata without fetching or burning the file
266
-
const headRes = await fetch(`/api/file/${id}`, { method: "HEAD" });
267
-
if (!headRes.ok) {
265
+
// /info — get metadata without fetching or burning the file
266
+
const infoRes = await fetch(`/api/file/${id}/info`);
267
+
if (!infoRes.ok) {
268
268
errorEl.textContent = "File not found or expired.";
269
269
return;
270
270
}
271
271
272
-
const burnAfterRead = headRes.headers.get("X-Burn-After-Read") === "1";
273
-
const expiresAt = parseInt(headRes.headers.get("X-Expires-At") || "0");
274
-
const size = parseInt(headRes.headers.get("Content-Length") || "0");
272
+
const { burnAfterRead, expiresAt, size } = await infoRes.json();
275
273
276
274
metaName.textContent = "Encrypted file";
277
275
metaSize.textContent = formatBytes(size);
+28
-10
src/routes/file.ts
+28
-10
src/routes/file.ts
···
2
2
import { createFile, getFile, peekFile, unlinkFile } from "../db.ts";
3
3
import { config } from "../config.ts";
4
4
5
-
const DURATION_UNITS: Record<string, number> = { s: 1, m: 60, h: 3600, d: 86400 };
5
+
const DURATION_UNITS: Record<string, number> = {
6
+
s: 1,
7
+
m: 60,
8
+
h: 3600,
9
+
d: 86400,
10
+
};
6
11
7
12
function parseDuration(s: string): number | undefined {
8
13
const n = parseInt(s);
···
61
66
return c.json({ id, deleteToken });
62
67
});
63
68
64
-
file.on(["HEAD", "GET"], "/:id", (c) => {
69
+
file.get("/:id/info", (c) => {
70
+
const id = c.req.param("id");
71
+
const row = peekFile(id);
72
+
73
+
if (!row) {
74
+
return c.json({ error: "File not found or expired" }, 404);
75
+
}
76
+
77
+
const bunFile = Bun.file(`${FILES_DIR}/${id}`);
78
+
79
+
return c.json({
80
+
id,
81
+
expiresAt: row.expires_at,
82
+
burnAfterRead: row.burn_after_read === 1,
83
+
size: bunFile.size,
84
+
});
85
+
});
86
+
87
+
file.get("/:id", (c) => {
65
88
const id = c.req.param("id");
66
-
const isHead = c.req.method === "HEAD";
67
-
const row = isHead ? peekFile(id) : getFile(id);
89
+
const row = getFile(id);
68
90
69
91
if (!row) {
70
92
return c.json({ error: "File not found or expired" }, 404);
···
76
98
const headers = new Headers({
77
99
"Content-Type": "application/octet-stream",
78
100
"Content-Length": String(bunFile.size),
79
-
"X-Expires-At": String(row.expires_at),
80
-
"X-Burn-After-Read": row.burn_after_read ? "1" : "0",
81
101
});
82
102
83
-
const response = new Response(bunFile, { headers });
84
-
85
-
if (!isHead && row.burn_after_read) {
103
+
if (row.burn_after_read) {
86
104
setTimeout(() => unlinkFile(id), 0);
87
105
}
88
106
89
-
return response;
107
+
return new Response(bunFile, { headers });
90
108
});
91
109
92
110
export default file;