fix: use os.tmpdir fallback paths for temp files (#14985)

Merged via /review-pr -> /prepare-pr -> /merge-pr.

Prepared head SHA: 347c689407
Co-authored-by: gumadeiras <5599352+gumadeiras@users.noreply.github.com>
Co-authored-by: gumadeiras <5599352+gumadeiras@users.noreply.github.com>
Reviewed-by: @gumadeiras

CHANGELOG.md

@@ -29,6 +29,7 @@ Docs: https://docs.openclaw.ai
 - Cron: isolate scheduler errors so one bad job does not break all jobs. (#14385) Thanks @MarvinDontPanic.
 - Cron: prevent one-shot `at` jobs from re-firing on restart after skipped/errored runs. (#13878) Thanks @lailoo.
 - Heartbeat: prevent scheduler stalls on unexpected run errors and avoid immediate rerun loops after `requests-in-flight` skips. (#14901) Thanks @joeykrug.
+- Logging/Browser: fall back to `os.tmpdir()/openclaw` for default log, browser trace, and browser download temp paths when `/tmp/openclaw` is unavailable.
 - WhatsApp: convert Markdown bold/strikethrough to WhatsApp formatting. (#14285) Thanks @Raikan10.
 - WhatsApp: allow media-only sends and normalize leading blank payloads. (#14408) Thanks @karimnaguib.
 - WhatsApp: default MIME type for voice messages when Baileys omits it. (#14444) Thanks @mcaxtr.

src/browser/pw-tools-core.downloads.ts

@@ -1,6 +1,7 @@
 import type { Page } from "playwright-core";
 import crypto from "node:crypto";
 import fs from "node:fs/promises";
+import os from "node:os";
 import path from "node:path";
 import {
   ensurePageState,
@@ -20,7 +21,7 @@ import {
 function buildTempDownloadPath(fileName: string): string {
   const id = crypto.randomUUID();
   const safeName = fileName.trim() ? fileName.trim() : "download.bin";
-  return path.join("/tmp/openclaw/downloads", `${id}-${safeName}`);
+  return path.join(os.tmpdir(), "openclaw", "downloads", `${id}-${safeName}`);
 }
 
 function createPageDownloadWaiter(page: Page, timeoutMs: number) {

src/browser/routes/agent.debug.ts

@@ -1,5 +1,6 @@
 import crypto from "node:crypto";
 import fs from "node:fs/promises";
+import os from "node:os";
 import path from "node:path";
 import type { BrowserRouteContext } from "../server-context.js";
 import type { BrowserRouteRegistrar } from "./types.js";
@@ -131,7 +132,7 @@ export function registerBrowserAgentDebugRoutes(
         return;
       }
       const id = crypto.randomUUID();
-      const dir = "/tmp/openclaw";
+      const dir = path.join(os.tmpdir(), "openclaw");
       await fs.mkdir(dir, { recursive: true });
       const tracePath = out.trim() || path.join(dir, `browser-trace-${id}.zip`);
       await pw.traceStopViaPlaywright({

src/cli/browser-cli-actions-input/register.files-downloads.ts

@@ -57,7 +57,7 @@ export function registerBrowserFilesAndDownloadsCommands(
   browser
     .command("waitfordownload")
     .description("Wait for the next download (and save it)")
-    .argument("[path]", "Save path (default: /tmp/openclaw/downloads/...)")
+    .argument("[path]", "Save path (default: os.tmpdir()/openclaw/downloads/...)")
     .option("--target-id <id>", "CDP target id (or unique prefix)")
     .option(
       "--timeout-ms <ms>",

src/logging/logger.ts

@@ -1,5 +1,6 @@
 import fs from "node:fs";
 import { createRequire } from "node:module";
+import os from "node:os";
 import path from "node:path";
 import { Logger as TsLogger } from "tslog";
 import type { OpenClawConfig } from "../config/types.js";
@@ -8,9 +9,18 @@ import { readLoggingConfig } from "./config.js";
 import { type LogLevel, levelToMinLevel, normalizeLogLevel } from "./levels.js";
 import { loggingState } from "./state.js";
 
-// Pin to /tmp so mac Debug UI and docs match; os.tmpdir() can be a per-user
-// randomized path on macOS which made the “Open log” button a no-op.
-export const DEFAULT_LOG_DIR = "/tmp/openclaw";
+// Prefer /tmp/openclaw so macOS Debug UI and docs match, but fall back to
+// os.tmpdir() on platforms where /tmp is read-only (e.g. Termux/Android).
+function resolveDefaultLogDir(): string {
+  try {
+    fs.mkdirSync("/tmp/openclaw", { recursive: true });
+    return "/tmp/openclaw";
+  } catch {
+    return path.join(os.tmpdir(), "openclaw");
+  }
+}
+
+export const DEFAULT_LOG_DIR = resolveDefaultLogDir();
 export const DEFAULT_LOG_FILE = path.join(DEFAULT_LOG_DIR, "openclaw.log"); // legacy single-file path
 
 const LOG_PREFIX = "openclaw";