small security fixes
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@@ -1,6 +1,5 @@
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import { createHash } from "crypto";
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import fs from "fs/promises";
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import path from "path";
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import { v4 as uuidv4 } from "uuid";
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import { authenticateRequest } from "../../auth";
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import { AuditAction, logAudit } from "../../auditLog";
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@@ -9,6 +8,8 @@ import { metrics } from "../../metrics";
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import { encodeMessage } from "../../protocol";
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import { requirePermission } from "../../rbac";
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import { createUploadPull } from "../file-transfer-state";
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import { fetchPublicUrlBytes, validatePublicHttpUrl } from "../url-security";
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import { resolveContainedPath, sanitizeUploadFilename } from "../upload-security";
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type RequestIpProvider = {
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requestIP: (req: Request) => { address?: string } | null | undefined;
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@@ -64,12 +65,12 @@ export async function handleDeployRoutes(
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return new Response("Missing file", { status: 400 });
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}
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const filename = path.basename(file.name || "upload.bin");
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const filename = sanitizeUploadFilename(file.name, "upload.bin");
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const id = uuidv4();
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await fs.mkdir(deps.DEPLOY_ROOT, { recursive: true });
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const folder = path.join(deps.DEPLOY_ROOT, id);
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const folder = resolveContainedPath(deps.DEPLOY_ROOT, id);
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await fs.mkdir(folder, { recursive: true });
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const targetPath = path.join(folder, filename);
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const targetPath = resolveContainedPath(folder, filename);
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const bytes = new Uint8Array(await file.arrayBuffer());
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await fs.writeFile(targetPath, bytes);
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@@ -112,47 +113,27 @@ export async function handleDeployRoutes(
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let parsed: URL;
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try {
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parsed = new URL(fileUrl);
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} catch {
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return new Response("Invalid URL", { status: 400 });
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}
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if (parsed.protocol !== "http:" && parsed.protocol !== "https:") {
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return new Response("Only http and https URLs are allowed", { status: 400 });
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parsed = await validatePublicHttpUrl(fileUrl);
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} catch (err: any) {
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return new Response(err?.message || "Invalid URL", { status: 400 });
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}
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const hostname = parsed.hostname.toLowerCase();
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const BLOCKED_HOSTS = ["localhost", "metadata.google.internal", "169.254.169.254"];
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if (
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BLOCKED_HOSTS.includes(hostname) ||
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hostname.endsWith(".internal") ||
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hostname.startsWith("127.") ||
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hostname === "[::1]" ||
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/^(10\.|172\.(1[6-9]|2\d|3[01])\.|192\.168\.)/.test(hostname) ||
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hostname.startsWith("169.254.") ||
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hostname.startsWith("0.")
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) {
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return new Response("URLs pointing to private/internal addresses are not allowed", { status: 400 });
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}
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const rawFilename = path.basename(parsed.pathname) || "download.bin";
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const filename = rawFilename.replace(/[^a-zA-Z0-9._\-]/g, "_").substring(0, 128) || "download.bin";
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const rawFilename = parsed.pathname.split("/").pop() || "download.bin";
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const filename = sanitizeUploadFilename(rawFilename, "download.bin");
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let fileBytes: Uint8Array;
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try {
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const fetchRes = await fetch(fileUrl);
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if (!fetchRes.ok) {
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return new Response(`Remote fetch failed: ${fetchRes.status}`, { status: 502 });
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}
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fileBytes = new Uint8Array(await fetchRes.arrayBuffer());
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const fetched = await fetchPublicUrlBytes(parsed.toString());
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fileBytes = fetched.bytes;
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} catch (err: any) {
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return new Response(`Failed to fetch URL: ${err?.message || "network error"}`, { status: 502 });
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}
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const id = uuidv4();
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await fs.mkdir(deps.DEPLOY_ROOT, { recursive: true });
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const folder = path.join(deps.DEPLOY_ROOT, id);
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const folder = resolveContainedPath(deps.DEPLOY_ROOT, id);
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await fs.mkdir(folder, { recursive: true });
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const targetPath = path.join(folder, filename);
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const targetPath = resolveContainedPath(folder, filename);
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await fs.writeFile(targetPath, fileBytes);
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const os = deps.detectUploadOs(filename, fileBytes);
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