Files
clawdbot/src/agents/sandbox.ts
2026-01-07 02:30:42 +00:00

954 lines
28 KiB
TypeScript

import { spawn } from "node:child_process";
import crypto from "node:crypto";
import fs from "node:fs/promises";
import os from "node:os";
import path from "node:path";
import {
type BrowserBridge,
startBrowserBridgeServer,
stopBrowserBridgeServer,
} from "../browser/bridge-server.js";
import {
type ResolvedBrowserConfig,
resolveProfile,
} from "../browser/config.js";
import { DEFAULT_CLAWD_BROWSER_COLOR } from "../browser/constants.js";
import type { ClawdbotConfig } from "../config/config.js";
import { STATE_DIR_CLAWDBOT } from "../config/config.js";
import { defaultRuntime } from "../runtime.js";
import { resolveUserPath } from "../utils.js";
import { resolveAgentIdFromSessionKey } from "./agent-scope.js";
import {
DEFAULT_AGENT_WORKSPACE_DIR,
DEFAULT_AGENTS_FILENAME,
DEFAULT_BOOTSTRAP_FILENAME,
DEFAULT_IDENTITY_FILENAME,
DEFAULT_SOUL_FILENAME,
DEFAULT_TOOLS_FILENAME,
DEFAULT_USER_FILENAME,
ensureAgentWorkspace,
} from "./workspace.js";
export type SandboxToolPolicy = {
allow?: string[];
deny?: string[];
};
export type SandboxBrowserConfig = {
enabled: boolean;
image: string;
containerPrefix: string;
cdpPort: number;
vncPort: number;
noVncPort: number;
headless: boolean;
enableNoVnc: boolean;
};
export type SandboxDockerConfig = {
image: string;
containerPrefix: string;
workdir: string;
readOnlyRoot: boolean;
tmpfs: string[];
network: string;
user?: string;
capDrop: string[];
env?: Record<string, string>;
setupCommand?: string;
pidsLimit?: number;
memory?: string | number;
memorySwap?: string | number;
cpus?: number;
ulimits?: Record<string, string | number | { soft?: number; hard?: number }>;
seccompProfile?: string;
apparmorProfile?: string;
dns?: string[];
extraHosts?: string[];
};
export type SandboxPruneConfig = {
idleHours: number;
maxAgeDays: number;
};
export type SandboxScope = "session" | "agent" | "shared";
export type SandboxConfig = {
mode: "off" | "non-main" | "all";
scope: SandboxScope;
workspaceRoot: string;
docker: SandboxDockerConfig;
browser: SandboxBrowserConfig;
tools: SandboxToolPolicy;
prune: SandboxPruneConfig;
};
export type SandboxBrowserContext = {
controlUrl: string;
noVncUrl?: string;
containerName: string;
};
export type SandboxContext = {
enabled: boolean;
sessionKey: string;
workspaceDir: string;
containerName: string;
containerWorkdir: string;
docker: SandboxDockerConfig;
tools: SandboxToolPolicy;
browser?: SandboxBrowserContext;
};
export type SandboxWorkspaceInfo = {
workspaceDir: string;
containerWorkdir: string;
};
const DEFAULT_SANDBOX_WORKSPACE_ROOT = path.join(
os.homedir(),
".clawdbot",
"sandboxes",
);
export const DEFAULT_SANDBOX_IMAGE = "clawdbot-sandbox:bookworm-slim";
const DEFAULT_SANDBOX_CONTAINER_PREFIX = "clawdbot-sbx-";
const DEFAULT_SANDBOX_WORKDIR = "/workspace";
const DEFAULT_SANDBOX_IDLE_HOURS = 24;
const DEFAULT_SANDBOX_MAX_AGE_DAYS = 7;
const DEFAULT_TOOL_ALLOW = [
"bash",
"process",
"read",
"write",
"edit",
"sessions_list",
"sessions_history",
"sessions_send",
"sessions_spawn",
];
const DEFAULT_TOOL_DENY = [
"browser",
"canvas",
"nodes",
"cron",
"discord",
"gateway",
];
export const DEFAULT_SANDBOX_BROWSER_IMAGE =
"clawdbot-sandbox-browser:bookworm-slim";
export const DEFAULT_SANDBOX_COMMON_IMAGE =
"clawdbot-sandbox-common:bookworm-slim";
const DEFAULT_SANDBOX_BROWSER_PREFIX = "clawdbot-sbx-browser-";
const DEFAULT_SANDBOX_BROWSER_CDP_PORT = 9222;
const DEFAULT_SANDBOX_BROWSER_VNC_PORT = 5900;
const DEFAULT_SANDBOX_BROWSER_NOVNC_PORT = 6080;
const SANDBOX_STATE_DIR = path.join(STATE_DIR_CLAWDBOT, "sandbox");
const SANDBOX_REGISTRY_PATH = path.join(SANDBOX_STATE_DIR, "containers.json");
const SANDBOX_BROWSER_REGISTRY_PATH = path.join(
SANDBOX_STATE_DIR,
"browsers.json",
);
type SandboxRegistryEntry = {
containerName: string;
sessionKey: string;
createdAtMs: number;
lastUsedAtMs: number;
image: string;
};
type SandboxRegistry = {
entries: SandboxRegistryEntry[];
};
type SandboxBrowserRegistryEntry = {
containerName: string;
sessionKey: string;
createdAtMs: number;
lastUsedAtMs: number;
image: string;
cdpPort: number;
noVncPort?: number;
};
type SandboxBrowserRegistry = {
entries: SandboxBrowserRegistryEntry[];
};
let lastPruneAtMs = 0;
const BROWSER_BRIDGES = new Map<
string,
{ bridge: BrowserBridge; containerName: string }
>();
function normalizeToolList(values?: string[]) {
if (!values) return [];
return values
.map((value) => value.trim())
.filter(Boolean)
.map((value) => value.toLowerCase());
}
function isToolAllowed(policy: SandboxToolPolicy, name: string) {
const deny = new Set(normalizeToolList(policy.deny));
if (deny.has(name.toLowerCase())) return false;
const allow = normalizeToolList(policy.allow);
if (allow.length === 0) return true;
return allow.includes(name.toLowerCase());
}
function resolveSandboxScope(params: {
scope?: SandboxScope;
perSession?: boolean;
}): SandboxScope {
if (params.scope) return params.scope;
if (typeof params.perSession === "boolean") {
return params.perSession ? "session" : "shared";
}
return "agent";
}
function resolveSandboxScopeKey(scope: SandboxScope, sessionKey: string) {
const trimmed = sessionKey.trim() || "main";
if (scope === "shared") return "shared";
if (scope === "session") return trimmed;
const agentId = resolveAgentIdFromSessionKey(trimmed);
return `agent:${agentId}`;
}
function defaultSandboxConfig(cfg?: ClawdbotConfig): SandboxConfig {
const agent = cfg?.agent?.sandbox;
return {
mode: agent?.mode ?? "off",
scope: resolveSandboxScope({
scope: agent?.scope,
perSession: agent?.perSession,
}),
workspaceRoot: agent?.workspaceRoot ?? DEFAULT_SANDBOX_WORKSPACE_ROOT,
docker: {
image: agent?.docker?.image ?? DEFAULT_SANDBOX_IMAGE,
containerPrefix:
agent?.docker?.containerPrefix ?? DEFAULT_SANDBOX_CONTAINER_PREFIX,
workdir: agent?.docker?.workdir ?? DEFAULT_SANDBOX_WORKDIR,
readOnlyRoot: agent?.docker?.readOnlyRoot ?? true,
tmpfs: agent?.docker?.tmpfs ?? ["/tmp", "/var/tmp", "/run"],
network: agent?.docker?.network ?? "none",
user: agent?.docker?.user,
capDrop: agent?.docker?.capDrop ?? ["ALL"],
env: agent?.docker?.env ?? { LANG: "C.UTF-8" },
setupCommand: agent?.docker?.setupCommand,
pidsLimit: agent?.docker?.pidsLimit,
memory: agent?.docker?.memory,
memorySwap: agent?.docker?.memorySwap,
cpus: agent?.docker?.cpus,
ulimits: agent?.docker?.ulimits,
seccompProfile: agent?.docker?.seccompProfile,
apparmorProfile: agent?.docker?.apparmorProfile,
dns: agent?.docker?.dns,
extraHosts: agent?.docker?.extraHosts,
},
browser: {
enabled: agent?.browser?.enabled ?? false,
image: agent?.browser?.image ?? DEFAULT_SANDBOX_BROWSER_IMAGE,
containerPrefix:
agent?.browser?.containerPrefix ?? DEFAULT_SANDBOX_BROWSER_PREFIX,
cdpPort: agent?.browser?.cdpPort ?? DEFAULT_SANDBOX_BROWSER_CDP_PORT,
vncPort: agent?.browser?.vncPort ?? DEFAULT_SANDBOX_BROWSER_VNC_PORT,
noVncPort:
agent?.browser?.noVncPort ?? DEFAULT_SANDBOX_BROWSER_NOVNC_PORT,
headless: agent?.browser?.headless ?? false,
enableNoVnc: agent?.browser?.enableNoVnc ?? true,
},
tools: {
allow: agent?.tools?.allow ?? DEFAULT_TOOL_ALLOW,
deny: agent?.tools?.deny ?? DEFAULT_TOOL_DENY,
},
prune: {
idleHours: agent?.prune?.idleHours ?? DEFAULT_SANDBOX_IDLE_HOURS,
maxAgeDays: agent?.prune?.maxAgeDays ?? DEFAULT_SANDBOX_MAX_AGE_DAYS,
},
};
}
function shouldSandboxSession(
cfg: SandboxConfig,
sessionKey: string,
mainKey: string,
) {
if (cfg.mode === "off") return false;
if (cfg.mode === "all") return true;
return sessionKey.trim() !== mainKey.trim();
}
function slugifySessionKey(value: string) {
const trimmed = value.trim() || "session";
const hash = crypto
.createHash("sha1")
.update(trimmed)
.digest("hex")
.slice(0, 8);
const safe = trimmed
.toLowerCase()
.replace(/[^a-z0-9._-]+/g, "-")
.replace(/^-+|-+$/g, "");
const base = safe.slice(0, 32) || "session";
return `${base}-${hash}`;
}
function resolveSandboxWorkspaceDir(root: string, sessionKey: string) {
const resolvedRoot = resolveUserPath(root);
const slug = slugifySessionKey(sessionKey);
return path.join(resolvedRoot, slug);
}
async function readRegistry(): Promise<SandboxRegistry> {
try {
const raw = await fs.readFile(SANDBOX_REGISTRY_PATH, "utf-8");
const parsed = JSON.parse(raw) as SandboxRegistry;
if (parsed && Array.isArray(parsed.entries)) return parsed;
} catch {
// ignore
}
return { entries: [] };
}
async function writeRegistry(registry: SandboxRegistry) {
await fs.mkdir(SANDBOX_STATE_DIR, { recursive: true });
await fs.writeFile(
SANDBOX_REGISTRY_PATH,
`${JSON.stringify(registry, null, 2)}\n`,
"utf-8",
);
}
async function updateRegistry(entry: SandboxRegistryEntry) {
const registry = await readRegistry();
const existing = registry.entries.find(
(item) => item.containerName === entry.containerName,
);
const next = registry.entries.filter(
(item) => item.containerName !== entry.containerName,
);
next.push({
...entry,
createdAtMs: existing?.createdAtMs ?? entry.createdAtMs,
image: existing?.image ?? entry.image,
});
await writeRegistry({ entries: next });
}
async function removeRegistryEntry(containerName: string) {
const registry = await readRegistry();
const next = registry.entries.filter(
(item) => item.containerName !== containerName,
);
if (next.length === registry.entries.length) return;
await writeRegistry({ entries: next });
}
async function readBrowserRegistry(): Promise<SandboxBrowserRegistry> {
try {
const raw = await fs.readFile(SANDBOX_BROWSER_REGISTRY_PATH, "utf-8");
const parsed = JSON.parse(raw) as SandboxBrowserRegistry;
if (parsed && Array.isArray(parsed.entries)) return parsed;
} catch {
// ignore
}
return { entries: [] };
}
async function writeBrowserRegistry(registry: SandboxBrowserRegistry) {
await fs.mkdir(SANDBOX_STATE_DIR, { recursive: true });
await fs.writeFile(
SANDBOX_BROWSER_REGISTRY_PATH,
`${JSON.stringify(registry, null, 2)}\n`,
"utf-8",
);
}
async function updateBrowserRegistry(entry: SandboxBrowserRegistryEntry) {
const registry = await readBrowserRegistry();
const existing = registry.entries.find(
(item) => item.containerName === entry.containerName,
);
const next = registry.entries.filter(
(item) => item.containerName !== entry.containerName,
);
next.push({
...entry,
createdAtMs: existing?.createdAtMs ?? entry.createdAtMs,
image: existing?.image ?? entry.image,
});
await writeBrowserRegistry({ entries: next });
}
async function removeBrowserRegistryEntry(containerName: string) {
const registry = await readBrowserRegistry();
const next = registry.entries.filter(
(item) => item.containerName !== containerName,
);
if (next.length === registry.entries.length) return;
await writeBrowserRegistry({ entries: next });
}
function execDocker(args: string[], opts?: { allowFailure?: boolean }) {
return new Promise<{ stdout: string; stderr: string; code: number }>(
(resolve, reject) => {
const child = spawn("docker", args, {
stdio: ["ignore", "pipe", "pipe"],
});
let stdout = "";
let stderr = "";
child.stdout?.on("data", (chunk) => {
stdout += chunk.toString();
});
child.stderr?.on("data", (chunk) => {
stderr += chunk.toString();
});
child.on("close", (code) => {
const exitCode = code ?? 0;
if (exitCode !== 0 && !opts?.allowFailure) {
reject(new Error(stderr.trim() || `docker ${args.join(" ")} failed`));
return;
}
resolve({ stdout, stderr, code: exitCode });
});
},
);
}
async function readDockerPort(containerName: string, port: number) {
const result = await execDocker(["port", containerName, `${port}/tcp`], {
allowFailure: true,
});
if (result.code !== 0) return null;
const line = result.stdout.trim().split(/\r?\n/)[0] ?? "";
const match = line.match(/:(\d+)\s*$/);
if (!match) return null;
const mapped = Number.parseInt(match[1] ?? "", 10);
return Number.isFinite(mapped) ? mapped : null;
}
async function dockerImageExists(image: string) {
const result = await execDocker(["image", "inspect", image], {
allowFailure: true,
});
return result.code === 0;
}
async function ensureDockerImage(image: string) {
const exists = await dockerImageExists(image);
if (exists) return;
if (image === DEFAULT_SANDBOX_IMAGE) {
await execDocker(["pull", "debian:bookworm-slim"]);
await execDocker(["tag", "debian:bookworm-slim", DEFAULT_SANDBOX_IMAGE]);
return;
}
throw new Error(`Sandbox image not found: ${image}. Build or pull it first.`);
}
async function dockerContainerState(name: string) {
const result = await execDocker(
["inspect", "-f", "{{.State.Running}}", name],
{ allowFailure: true },
);
if (result.code !== 0) return { exists: false, running: false };
return { exists: true, running: result.stdout.trim() === "true" };
}
async function ensureSandboxWorkspace(
workspaceDir: string,
seedFrom?: string,
skipBootstrap?: boolean,
) {
await fs.mkdir(workspaceDir, { recursive: true });
if (seedFrom) {
const seed = resolveUserPath(seedFrom);
const files = [
DEFAULT_AGENTS_FILENAME,
DEFAULT_SOUL_FILENAME,
DEFAULT_TOOLS_FILENAME,
DEFAULT_IDENTITY_FILENAME,
DEFAULT_USER_FILENAME,
DEFAULT_BOOTSTRAP_FILENAME,
];
for (const name of files) {
const src = path.join(seed, name);
const dest = path.join(workspaceDir, name);
try {
await fs.access(dest);
} catch {
try {
const content = await fs.readFile(src, "utf-8");
await fs.writeFile(dest, content, { encoding: "utf-8", flag: "wx" });
} catch {
// ignore missing seed file
}
}
}
}
await ensureAgentWorkspace({
dir: workspaceDir,
ensureBootstrapFiles: !skipBootstrap,
});
}
function normalizeDockerLimit(value?: string | number) {
if (value === undefined || value === null) return undefined;
if (typeof value === "number") {
return Number.isFinite(value) ? String(value) : undefined;
}
const trimmed = value.trim();
return trimmed ? trimmed : undefined;
}
function formatUlimitValue(
name: string,
value: string | number | { soft?: number; hard?: number },
) {
if (!name.trim()) return null;
if (typeof value === "number" || typeof value === "string") {
const raw = String(value).trim();
return raw ? `${name}=${raw}` : null;
}
const soft =
typeof value.soft === "number" ? Math.max(0, value.soft) : undefined;
const hard =
typeof value.hard === "number" ? Math.max(0, value.hard) : undefined;
if (soft === undefined && hard === undefined) return null;
if (soft === undefined) return `${name}=${hard}`;
if (hard === undefined) return `${name}=${soft}`;
return `${name}=${soft}:${hard}`;
}
export function buildSandboxCreateArgs(params: {
name: string;
cfg: SandboxDockerConfig;
scopeKey: string;
createdAtMs?: number;
labels?: Record<string, string>;
}) {
const createdAtMs = params.createdAtMs ?? Date.now();
const args = ["create", "--name", params.name];
args.push("--label", "clawdbot.sandbox=1");
args.push("--label", `clawdbot.sessionKey=${params.scopeKey}`);
args.push("--label", `clawdbot.createdAtMs=${createdAtMs}`);
for (const [key, value] of Object.entries(params.labels ?? {})) {
if (key && value) args.push("--label", `${key}=${value}`);
}
if (params.cfg.readOnlyRoot) args.push("--read-only");
for (const entry of params.cfg.tmpfs) {
args.push("--tmpfs", entry);
}
if (params.cfg.network) args.push("--network", params.cfg.network);
if (params.cfg.user) args.push("--user", params.cfg.user);
for (const cap of params.cfg.capDrop) {
args.push("--cap-drop", cap);
}
args.push("--security-opt", "no-new-privileges");
if (params.cfg.seccompProfile) {
args.push("--security-opt", `seccomp=${params.cfg.seccompProfile}`);
}
if (params.cfg.apparmorProfile) {
args.push("--security-opt", `apparmor=${params.cfg.apparmorProfile}`);
}
for (const entry of params.cfg.dns ?? []) {
if (entry.trim()) args.push("--dns", entry);
}
for (const entry of params.cfg.extraHosts ?? []) {
if (entry.trim()) args.push("--add-host", entry);
}
if (typeof params.cfg.pidsLimit === "number" && params.cfg.pidsLimit > 0) {
args.push("--pids-limit", String(params.cfg.pidsLimit));
}
const memory = normalizeDockerLimit(params.cfg.memory);
if (memory) args.push("--memory", memory);
const memorySwap = normalizeDockerLimit(params.cfg.memorySwap);
if (memorySwap) args.push("--memory-swap", memorySwap);
if (typeof params.cfg.cpus === "number" && params.cfg.cpus > 0) {
args.push("--cpus", String(params.cfg.cpus));
}
for (const [name, value] of Object.entries(params.cfg.ulimits ?? {})) {
const formatted = formatUlimitValue(name, value);
if (formatted) args.push("--ulimit", formatted);
}
return args;
}
async function createSandboxContainer(params: {
name: string;
cfg: SandboxDockerConfig;
workspaceDir: string;
scopeKey: string;
}) {
const { name, cfg, workspaceDir, scopeKey } = params;
await ensureDockerImage(cfg.image);
const args = buildSandboxCreateArgs({
name,
cfg,
scopeKey,
});
args.push("--workdir", cfg.workdir);
args.push("-v", `${workspaceDir}:${cfg.workdir}`);
args.push(cfg.image, "sleep", "infinity");
await execDocker(args);
await execDocker(["start", name]);
if (cfg.setupCommand?.trim()) {
await execDocker(["exec", "-i", name, "sh", "-lc", cfg.setupCommand]);
}
}
async function ensureSandboxContainer(params: {
sessionKey: string;
workspaceDir: string;
cfg: SandboxConfig;
}) {
const scopeKey = resolveSandboxScopeKey(params.cfg.scope, params.sessionKey);
const slug =
params.cfg.scope === "shared" ? "shared" : slugifySessionKey(scopeKey);
const name = `${params.cfg.docker.containerPrefix}${slug}`;
const containerName = name.slice(0, 63);
const state = await dockerContainerState(containerName);
if (!state.exists) {
await createSandboxContainer({
name: containerName,
cfg: params.cfg.docker,
workspaceDir: params.workspaceDir,
scopeKey,
});
} else if (!state.running) {
await execDocker(["start", containerName]);
}
const now = Date.now();
await updateRegistry({
containerName,
sessionKey: scopeKey,
createdAtMs: now,
lastUsedAtMs: now,
image: params.cfg.docker.image,
});
return containerName;
}
async function ensureSandboxBrowserImage(image: string) {
const exists = await dockerImageExists(image);
if (exists) return;
throw new Error(
`Sandbox browser image not found: ${image}. Build it with scripts/sandbox-browser-setup.sh.`,
);
}
function buildSandboxBrowserResolvedConfig(params: {
controlPort: number;
cdpPort: number;
headless: boolean;
}): ResolvedBrowserConfig {
const controlHost = "127.0.0.1";
const controlUrl = `http://${controlHost}:${params.controlPort}`;
const cdpHost = "127.0.0.1";
return {
enabled: true,
controlUrl,
controlHost,
controlPort: params.controlPort,
cdpProtocol: "http",
cdpHost,
cdpIsLoopback: true,
color: DEFAULT_CLAWD_BROWSER_COLOR,
executablePath: undefined,
headless: params.headless,
noSandbox: false,
attachOnly: true,
defaultProfile: "clawd",
profiles: {
clawd: { cdpPort: params.cdpPort, color: DEFAULT_CLAWD_BROWSER_COLOR },
},
};
}
async function ensureSandboxBrowser(params: {
scopeKey: string;
workspaceDir: string;
cfg: SandboxConfig;
}): Promise<SandboxBrowserContext | null> {
if (!params.cfg.browser.enabled) return null;
if (!isToolAllowed(params.cfg.tools, "browser")) return null;
const slug =
params.cfg.scope === "shared"
? "shared"
: slugifySessionKey(params.scopeKey);
const name = `${params.cfg.browser.containerPrefix}${slug}`;
const containerName = name.slice(0, 63);
const state = await dockerContainerState(containerName);
if (!state.exists) {
await ensureSandboxBrowserImage(params.cfg.browser.image);
const args = buildSandboxCreateArgs({
name: containerName,
cfg: params.cfg.docker,
scopeKey: params.scopeKey,
labels: { "clawdbot.sandboxBrowser": "1" },
});
args.push("-v", `${params.workspaceDir}:${params.cfg.docker.workdir}`);
args.push("-p", `127.0.0.1::${params.cfg.browser.cdpPort}`);
if (params.cfg.browser.enableNoVnc && !params.cfg.browser.headless) {
args.push("-p", `127.0.0.1::${params.cfg.browser.noVncPort}`);
}
args.push(
"-e",
`CLAWDBOT_BROWSER_HEADLESS=${params.cfg.browser.headless ? "1" : "0"}`,
);
args.push(
"-e",
`CLAWDBOT_BROWSER_ENABLE_NOVNC=${
params.cfg.browser.enableNoVnc ? "1" : "0"
}`,
);
args.push("-e", `CLAWDBOT_BROWSER_CDP_PORT=${params.cfg.browser.cdpPort}`);
args.push("-e", `CLAWDBOT_BROWSER_VNC_PORT=${params.cfg.browser.vncPort}`);
args.push(
"-e",
`CLAWDBOT_BROWSER_NOVNC_PORT=${params.cfg.browser.noVncPort}`,
);
args.push(params.cfg.browser.image);
await execDocker(args);
await execDocker(["start", containerName]);
} else if (!state.running) {
await execDocker(["start", containerName]);
}
const mappedCdp = await readDockerPort(
containerName,
params.cfg.browser.cdpPort,
);
if (!mappedCdp) {
throw new Error(`Failed to resolve CDP port mapping for ${containerName}.`);
}
const mappedNoVnc =
params.cfg.browser.enableNoVnc && !params.cfg.browser.headless
? await readDockerPort(containerName, params.cfg.browser.noVncPort)
: null;
const existing = BROWSER_BRIDGES.get(params.scopeKey);
const existingProfile = existing
? resolveProfile(existing.bridge.state.resolved, "clawd")
: null;
const shouldReuse =
existing &&
existing.containerName === containerName &&
existingProfile?.cdpPort === mappedCdp;
if (existing && !shouldReuse) {
await stopBrowserBridgeServer(existing.bridge.server).catch(
() => undefined,
);
BROWSER_BRIDGES.delete(params.scopeKey);
}
let bridge: BrowserBridge;
if (shouldReuse && existing) {
bridge = existing.bridge;
} else {
bridge = await startBrowserBridgeServer({
resolved: buildSandboxBrowserResolvedConfig({
controlPort: 0,
cdpPort: mappedCdp,
headless: params.cfg.browser.headless,
}),
});
}
if (!shouldReuse) {
BROWSER_BRIDGES.set(params.scopeKey, { bridge, containerName });
}
const now = Date.now();
await updateBrowserRegistry({
containerName,
sessionKey: params.scopeKey,
createdAtMs: now,
lastUsedAtMs: now,
image: params.cfg.browser.image,
cdpPort: mappedCdp,
noVncPort: mappedNoVnc ?? undefined,
});
const noVncUrl =
mappedNoVnc &&
params.cfg.browser.enableNoVnc &&
!params.cfg.browser.headless
? `http://127.0.0.1:${mappedNoVnc}/vnc.html?autoconnect=1&resize=remote`
: undefined;
return {
controlUrl: bridge.baseUrl,
noVncUrl,
containerName,
};
}
async function pruneSandboxContainers(cfg: SandboxConfig) {
const now = Date.now();
const idleHours = cfg.prune.idleHours;
const maxAgeDays = cfg.prune.maxAgeDays;
if (idleHours === 0 && maxAgeDays === 0) return;
const registry = await readRegistry();
for (const entry of registry.entries) {
const idleMs = now - entry.lastUsedAtMs;
const ageMs = now - entry.createdAtMs;
if (
(idleHours > 0 && idleMs > idleHours * 60 * 60 * 1000) ||
(maxAgeDays > 0 && ageMs > maxAgeDays * 24 * 60 * 60 * 1000)
) {
try {
await execDocker(["rm", "-f", entry.containerName], {
allowFailure: true,
});
} catch {
// ignore prune failures
} finally {
await removeRegistryEntry(entry.containerName);
}
}
}
}
async function pruneSandboxBrowsers(cfg: SandboxConfig) {
const now = Date.now();
const idleHours = cfg.prune.idleHours;
const maxAgeDays = cfg.prune.maxAgeDays;
if (idleHours === 0 && maxAgeDays === 0) return;
const registry = await readBrowserRegistry();
for (const entry of registry.entries) {
const idleMs = now - entry.lastUsedAtMs;
const ageMs = now - entry.createdAtMs;
if (
(idleHours > 0 && idleMs > idleHours * 60 * 60 * 1000) ||
(maxAgeDays > 0 && ageMs > maxAgeDays * 24 * 60 * 60 * 1000)
) {
try {
await execDocker(["rm", "-f", entry.containerName], {
allowFailure: true,
});
} catch {
// ignore prune failures
} finally {
await removeBrowserRegistryEntry(entry.containerName);
const bridge = BROWSER_BRIDGES.get(entry.sessionKey);
if (bridge?.containerName === entry.containerName) {
await stopBrowserBridgeServer(bridge.bridge.server).catch(
() => undefined,
);
BROWSER_BRIDGES.delete(entry.sessionKey);
}
}
}
}
}
async function maybePruneSandboxes(cfg: SandboxConfig) {
const now = Date.now();
if (now - lastPruneAtMs < 5 * 60 * 1000) return;
lastPruneAtMs = now;
try {
await pruneSandboxContainers(cfg);
await pruneSandboxBrowsers(cfg);
} catch (error) {
const message =
error instanceof Error
? error.message
: typeof error === "string"
? error
: JSON.stringify(error);
defaultRuntime.error?.(
`Sandbox prune failed: ${message ?? "unknown error"}`,
);
}
}
export async function resolveSandboxContext(params: {
config?: ClawdbotConfig;
sessionKey?: string;
workspaceDir?: string;
}): Promise<SandboxContext | null> {
const rawSessionKey = params.sessionKey?.trim();
if (!rawSessionKey) return null;
const cfg = defaultSandboxConfig(params.config);
const mainKey = params.config?.session?.mainKey?.trim() || "main";
if (!shouldSandboxSession(cfg, rawSessionKey, mainKey)) return null;
await maybePruneSandboxes(cfg);
const workspaceRoot = resolveUserPath(cfg.workspaceRoot);
const scopeKey = resolveSandboxScopeKey(cfg.scope, rawSessionKey);
const workspaceDir =
cfg.scope === "shared"
? workspaceRoot
: resolveSandboxWorkspaceDir(workspaceRoot, scopeKey);
const seedWorkspace =
params.workspaceDir?.trim() || DEFAULT_AGENT_WORKSPACE_DIR;
await ensureSandboxWorkspace(
workspaceDir,
seedWorkspace,
params.config?.agent?.skipBootstrap,
);
const containerName = await ensureSandboxContainer({
sessionKey: rawSessionKey,
workspaceDir,
cfg,
});
const browser = await ensureSandboxBrowser({
scopeKey,
workspaceDir,
cfg,
});
return {
enabled: true,
sessionKey: rawSessionKey,
workspaceDir,
containerName,
containerWorkdir: cfg.docker.workdir,
docker: cfg.docker,
tools: cfg.tools,
browser: browser ?? undefined,
};
}
export async function ensureSandboxWorkspaceForSession(params: {
config?: ClawdbotConfig;
sessionKey?: string;
workspaceDir?: string;
}): Promise<SandboxWorkspaceInfo | null> {
const rawSessionKey = params.sessionKey?.trim();
if (!rawSessionKey) return null;
const cfg = defaultSandboxConfig(params.config);
const mainKey = params.config?.session?.mainKey?.trim() || "main";
if (!shouldSandboxSession(cfg, rawSessionKey, mainKey)) return null;
const workspaceRoot = resolveUserPath(cfg.workspaceRoot);
const scopeKey = resolveSandboxScopeKey(cfg.scope, rawSessionKey);
const workspaceDir =
cfg.scope === "shared"
? workspaceRoot
: resolveSandboxWorkspaceDir(workspaceRoot, scopeKey);
const seedWorkspace =
params.workspaceDir?.trim() || DEFAULT_AGENT_WORKSPACE_DIR;
await ensureSandboxWorkspace(
workspaceDir,
seedWorkspace,
params.config?.agent?.skipBootstrap,
);
return {
workspaceDir,
containerWorkdir: cfg.docker.workdir,
};
}