fix(ota): guard RevenueCat production exports

apps/mobile/scripts/bin/sauci-eoas-npx

@@ -0,0 +1,30 @@
+#!/usr/bin/env node
+
+import { spawnSync } from 'node:child_process';
+import { isAbsolute } from 'node:path';
+
+const requiredProductionRevenueCatConfig = [
+  ['EXPO_PUBLIC_REVENUECAT_IOS_API_KEY', 'appl_'],
+  ['EXPO_PUBLIC_REVENUECAT_ANDROID_API_KEY', 'goog_'],
+  ['EXPO_PUBLIC_REVENUECAT_ENTITLEMENT_ID', null],
+];
+
+function fail(message) {
+  console.error(`EOAS Expo export guard: ${message}`);
+  process.exit(1);
+}
+
+for (const [key, prefix] of requiredProductionRevenueCatConfig) {
+  const value = process.env[key];
+  const expected = process.env[`SAUCI_EOAS_EXPECTED_${key}`];
+  if (typeof value !== 'string' || !value.trim()) fail(`${key} is required`);
+  if (prefix && !value.startsWith(prefix)) fail(`${key} must be a valid RevenueCat public key`);
+  if (value !== expected) fail(`${key} does not match the resolved production profile`);
+}
+
+const npx = process.env.SAUCI_EOAS_NPX;
+if (!npx || !isAbsolute(npx)) fail('missing resolved npx executable');
+
+const result = spawnSync(npx, process.argv.slice(2), { env: process.env, stdio: 'inherit' });
+if (result.error) throw result.error;
+process.exit(result.status ?? 1);

apps/mobile/scripts/ota-publish.mjs

@@ -1,8 +1,8 @@
 #!/usr/bin/env node
 
-import { mkdtempSync, readFileSync, rmSync } from 'node:fs';
+import { accessSync, constants, mkdtempSync, readdirSync, readFileSync, rmSync, statSync } from 'node:fs';
 import { tmpdir } from 'node:os';
-import { join, resolve } from 'node:path';
+import { delimiter, join, resolve } from 'node:path';
 import { fileURLToPath } from 'node:url';
 import { spawnSync } from 'node:child_process';
 
@@ -27,6 +27,13 @@ const requiredPublicKeys = [
   'EXPO_PUBLIC_SUPABASE_URL',
   'EXPO_PUBLIC_SUPABASE_ANON_KEY',
 ];
+const requiredProductionRevenueCatConfig = [
+  ['EXPO_PUBLIC_REVENUECAT_IOS_API_KEY', 'appl_'],
+  ['EXPO_PUBLIC_REVENUECAT_ANDROID_API_KEY', 'goog_'],
+  ['EXPO_PUBLIC_REVENUECAT_ENTITLEMENT_ID', null],
+];
+const EOAS_PACKAGE_RUNNER = 'sauci-eoas-npx';
+const EOAS_RUNNER_BIN_DIR = join(projectDir, 'scripts', 'bin');
 
 function fail(message) {
   throw new Error(`OTA publish preflight: ${message}`);
@@ -67,9 +74,87 @@ export function resolvePublishEnvironment(target, environment = process.env, con
   requireCanonicalHttpsRoot(env.EXPO_PUBLIC_SUPABASE_URL, profile.authOrigin, `${target} Auth URL`);
   requireCanonicalHttpsRoot(env.EXPO_PUBLIC_API_URL, profile.apiOrigin, `${target} API URL`);
 
+  if (target === 'production') {
+    for (const [key, prefix] of requiredProductionRevenueCatConfig) {
+      const value = env[key];
+      if (typeof value !== 'string' || !value.trim()) fail(`${key} is required for production export`);
+      if (prefix && !value.startsWith(prefix)) {
+        fail(`${key} must be a valid ${prefix} RevenueCat public key`);
+      }
+    }
+  }
+
   return { branch: profile.branch, env };
 }
 
+function exportFiles(outputDir) {
+  return readdirSync(outputDir, { withFileTypes: true }).flatMap((entry) => {
+    const entryPath = join(outputDir, entry.name);
+    return entry.isDirectory() ? exportFiles(entryPath) : [entryPath];
+  });
+}
+
+/**
+ * Expo inlines EXPO_PUBLIC_* values into the JavaScript bundle. Verify the
+ * isolated production export rather than trusting only the process environment:
+ * a missing key otherwise becomes an empty string on installed devices.
+ */
+export function assertProductionExportContainsRevenueCatConfig(outputDir, environment) {
+  const files = exportFiles(outputDir).filter((filePath) => statSync(filePath).isFile());
+  for (const [key] of requiredProductionRevenueCatConfig) {
+    const expectedValue = environment[key];
+    const present = files.some((filePath) => readFileSync(filePath).includes(expectedValue));
+    if (!present) fail(`production export does not contain ${key}`);
+  }
+}
+
+function resolveExecutable(command, pathValue) {
+  for (const directory of pathValue.split(delimiter)) {
+    if (!directory) continue;
+    const candidate = join(directory, command);
+    try {
+      accessSync(candidate, constants.X_OK);
+      return candidate;
+    } catch {
+      // Continue looking through PATH.
+    }
+  }
+  fail(`could not resolve ${command} before configuring the EOAS package runner`);
+}
+
+/**
+ * EOAS starts its own Expo subprocess with EXPO_NO_DOTENV=1. Pin its package
+ * runner to our checked-in wrapper so the actual EOAS export fails before it
+ * starts if its inherited RevenueCat configuration differs from this profile.
+ */
+export function buildEoasEnvironment(environment) {
+  const originalPath = environment.PATH || process.env.PATH || '';
+  const expected = Object.fromEntries(requiredProductionRevenueCatConfig.map(([key]) => [
+    `SAUCI_EOAS_EXPECTED_${key}`,
+    environment[key],
+  ]));
+  return {
+    ...environment,
+    EXPO_NO_DOTENV: '1',
+    EOAS_PACKAGE_RUNNER,
+    PATH: `${EOAS_RUNNER_BIN_DIR}${delimiter}${originalPath}`,
+    SAUCI_EOAS_NPX: resolveExecutable('npx', originalPath),
+    ...expected,
+  };
+}
+
+export function buildEoasPublishArgs(branch, rawPublishArgs, useProductionGuard = false) {
+  const args = [
+    'eoas',
+    'publish',
+    '--branch',
+    branch,
+    ...parsePublishArgs(rawPublishArgs),
+  ];
+  if (useProductionGuard) args.splice(4, 0, '--packageRunner', EOAS_PACKAGE_RUNNER);
+  return args;
+}
+
 export function parsePublishArgs(args) {
   const parsed = [];
   for (let index = 0; index < args.length; index += 1) {
@@ -112,6 +197,18 @@ function run(command, args, env) {
   if (result.status !== 0) process.exit(result.status ?? 1);
 }
 
+function exportAndVerify(target, environment) {
+  const outputDir = mkdtempSync(join(tmpdir(), `sauci-ota-${target}-`));
+  try {
+    run('npx', ['expo', 'export', '--output-dir', outputDir], environment);
+    if (target === 'production') {
+      assertProductionExportContainsRevenueCatConfig(outputDir, environment);
+    }
+  } finally {
+    rmSync(outputDir, { recursive: true, force: true });
+  }
+}
+
 export function main(args = process.argv.slice(2), environment = process.env) {
   const [target, ...remaining] = args;
   const preflight = remaining.includes('--preflight');
@@ -122,12 +219,7 @@ export function main(args = process.argv.slice(2), environment = process.env) {
   const { branch, env } = resolvePublishEnvironment(target, environment);
   const exportEnv = { ...env, EXPO_NO_DOTENV: '1' };
   if (preflight) {
-    const outputDir = mkdtempSync(join(tmpdir(), `sauci-ota-${target}-`));
-    try {
-      run('npx', ['expo', 'export', '--output-dir', outputDir], exportEnv);
-    } finally {
-      rmSync(outputDir, { recursive: true, force: true });
-    }
+    exportAndVerify(target, exportEnv);
     console.log(`OTA ${target} export preflight passed`);
     return;
   }
@@ -138,7 +230,9 @@ export function main(args = process.argv.slice(2), environment = process.env) {
     return;
   }
 
-  run('npx', ['eoas', 'publish', '--branch', branch, ...parsePublishArgs(rawPublishArgs)], exportEnv);
+  exportAndVerify(target, exportEnv);
+  const eoasEnvironment = target === 'production' ? buildEoasEnvironment(exportEnv) : exportEnv;
+  run('npx', buildEoasPublishArgs(branch, rawPublishArgs, target === 'production'), eoasEnvironment);
 }
 
 // Compare real filesystem paths. A URL pathname percent-encodes spaces, so

apps/mobile/scripts/ota-publish.test.mjs

@@ -1,6 +1,17 @@
 import assert from 'node:assert/strict';
 import test from 'node:test';
-import { parsePublishArgs, resolvePublishEnvironment } from './ota-publish.mjs';
+import { mkdtempSync, rmSync, writeFileSync } from 'node:fs';
+import { tmpdir } from 'node:os';
+import { join } from 'node:path';
+import {
+  assertProductionExportContainsRevenueCatConfig,
+  buildEoasEnvironment,
+  buildEoasPublishArgs,
+  parsePublishArgs,
+  resolvePublishEnvironment,
+} from './ota-publish.mjs';
+import { spawnSync } from 'node:child_process';
+import { fileURLToPath } from 'node:url';
 
 const config = {
   build: {
@@ -9,6 +20,9 @@ const config = {
         EXPO_PUBLIC_API_URL: 'https://api.sauci.app',
         EXPO_PUBLIC_SUPABASE_URL: 'https://ckjcrkjpmhqhiucifukx.supabase.co',
         EXPO_PUBLIC_SUPABASE_ANON_KEY: 'production-anon-key',
+        EXPO_PUBLIC_REVENUECAT_IOS_API_KEY: 'appl_test_ios_public_key',
+        EXPO_PUBLIC_REVENUECAT_ANDROID_API_KEY: 'goog_test_android_public_key',
+        EXPO_PUBLIC_REVENUECAT_ENTITLEMENT_ID: 'Sauci Pro',
       },
     },
     preview: {
@@ -28,6 +42,79 @@ test('production export uses the checked-in production profile', () => {
   assert.equal(env.EXPO_PUBLIC_API_URL, 'https://api.sauci.app');
 });
 
+test('production export fails closed without valid RevenueCat public configuration', () => {
+  for (const [key, value] of [
+    ['EXPO_PUBLIC_REVENUECAT_IOS_API_KEY', ''],
+    ['EXPO_PUBLIC_REVENUECAT_IOS_API_KEY', 'goog_wrong_platform_key'],
+    ['EXPO_PUBLIC_REVENUECAT_ANDROID_API_KEY', ''],
+    ['EXPO_PUBLIC_REVENUECAT_ANDROID_API_KEY', 'appl_wrong_platform_key'],
+    ['EXPO_PUBLIC_REVENUECAT_ENTITLEMENT_ID', ''],
+  ]) {
+    const productionEnv = { ...config.build.production.env, [key]: value };
+    assert.throws(
+      () => resolvePublishEnvironment('production', {}, {
+        build: { ...config.build, production: { env: productionEnv } },
+      }),
+      new RegExp(key),
+    );
+  }
+});
+
+test('production preflight proves the compiled bundle contains RevenueCat configuration', () => {
+  const outputDir = mkdtempSync(join(tmpdir(), 'sauci-ota-export-test-'));
+  const environment = config.build.production.env;
+  try {
+    writeFileSync(
+      join(outputDir, 'index.js'),
+      [
+        environment.EXPO_PUBLIC_REVENUECAT_IOS_API_KEY,
+        environment.EXPO_PUBLIC_REVENUECAT_ANDROID_API_KEY,
+        environment.EXPO_PUBLIC_REVENUECAT_ENTITLEMENT_ID,
+      ].join(','),
+    );
+    assert.doesNotThrow(() => assertProductionExportContainsRevenueCatConfig(outputDir, environment));
+
+    writeFileSync(join(outputDir, 'index.js'), environment.EXPO_PUBLIC_REVENUECAT_IOS_API_KEY);
+    assert.throws(
+      () => assertProductionExportContainsRevenueCatConfig(outputDir, environment),
+      /EXPO_PUBLIC_REVENUECAT_ANDROID_API_KEY/,
+    );
+  } finally {
+    rmSync(outputDir, { recursive: true, force: true });
+  }
+});
+
+test('EOAS uses a guarded package runner that receives the resolved production environment', () => {
+  const eoasEnvironment = buildEoasEnvironment({ ...config.build.production.env, PATH: process.env.PATH });
+  assert.equal(eoasEnvironment.EOAS_PACKAGE_RUNNER, 'sauci-eoas-npx');
+  assert.match(eoasEnvironment.PATH, /apps\/mobile\/scripts\/bin/);
+  assert.equal(eoasEnvironment.SAUCI_EOAS_EXPECTED_EXPO_PUBLIC_REVENUECAT_ENTITLEMENT_ID, 'Sauci Pro');
+
+  const runnerPath = fileURLToPath(new URL('./bin/sauci-eoas-npx', import.meta.url));
+  const successful = spawnSync(process.execPath, [runnerPath, 'expo', 'export'], {
+    env: { ...eoasEnvironment, SAUCI_EOAS_NPX: '/usr/bin/true' },
+    encoding: 'utf8',
+  });
+  assert.equal(successful.status, 0, successful.stderr);
+
+  const missingKey = spawnSync(process.execPath, [runnerPath, 'expo', 'export'], {
+    env: { ...eoasEnvironment, EXPO_PUBLIC_REVENUECAT_ANDROID_API_KEY: '', SAUCI_EOAS_NPX: '/usr/bin/true' },
+    encoding: 'utf8',
+  });
+  assert.equal(missingKey.status, 1);
+  assert.match(missingKey.stderr, /EXPO_PUBLIC_REVENUECAT_ANDROID_API_KEY/);
+  assert.doesNotMatch(missingKey.stderr, /goog_test_android_public_key/);
+
+  assert.deepEqual(
+    buildEoasPublishArgs('production', ['--platform', 'all'], true),
+    ['eoas', 'publish', '--branch', 'production', '--packageRunner', 'sauci-eoas-npx', '--platform', 'all'],
+  );
+  assert.deepEqual(
+    buildEoasPublishArgs('staging', ['--platform', 'ios']),
+    ['eoas', 'publish', '--branch', 'staging', '--platform', 'ios'],
+  );
+});
+
 test('staging export requires the designated non-production Auth configuration', () => {
   const environment = {
     EXPO_PUBLIC_SUPABASE_URL: 'https://itbzhrvlgvdmzbnhzhyx.supabase.co',

docs/mobile-ota.md

@@ -51,7 +51,7 @@ Channels. The client cannot create them.
 `apps/mobile/app.config.js` sets an explicit runtime string:
 
 ```js
-runtimeVersion: '1.0.7'
+runtimeVersion: '1.0.8'
 ```
 
 The release version script updates this string with `expo.version` and the
@@ -91,7 +91,7 @@ Resolved configuration:
 | `updates.requestHeaders['expo-channel-name']` | `process.env.RELEASE_CHANNEL`, defaulting to `development` |
 | `updates.requestHeaders['expo-app-id']` | `process.env.XPREM_APP_ID` |
 | `updates.requestHeaders['xprem-branch']` | `''` |
-| `runtimeVersion` | Explicit public version, currently `1.0.7` |
+| `runtimeVersion` | Explicit public version, currently `1.0.8` |
 
 `expo-updates` only sends request headers that were declared at build time, so
 `xprem-branch` is declared even though it is empty. Removing it would not disable
@@ -176,6 +176,8 @@ dashboard and supplied as `EOO_TOKEN`; it is a secret and must not be committed.
 cd apps/mobile
 
 # Verify the exact export environment without contacting the update server.
+# Production preflight fails closed unless the compiled bundle contains both
+# RevenueCat platform public keys and the entitlement identifier.
 npm run ota:preflight:production
 
 # Staging: consumed by builds made with the EAS `preview` profile.
@@ -189,7 +191,12 @@ The scripts resolve the matching EAS build profile into EOAS's export subprocess
 EOAS sets `EXPO_NO_DOTENV=1`, so invoking `eoas publish` directly does not load
 profile values from `eas.json`. The wrapper injects the selected profile's public
 configuration, including the required API and hosted Auth values, sets the
-matching `RELEASE_CHANNEL`, and fixes the target branch. It does not print
+matching `RELEASE_CHANNEL`, and fixes the target branch. Before each production
+publish, it makes an isolated Expo export and fails unless that compiled bundle
+contains the iOS and Android RevenueCat public SDK keys plus the entitlement
+identifier. EOAS is also forced through a checked-in package-runner guard, which
+receives the resolved profile environment and rejects a missing, malformed, or
+changed RevenueCat value before EOAS runs its own Expo export. It does not print
 configuration values.
 
 Production public API/Auth values come from the checked-in production profile.
@@ -230,7 +237,7 @@ production deploy and none of the review latency.
 curl -sD - "https://ota.apps.jbrunton.co.uk/manifest" \
   -H "expo-app-id: <xprem-app-id>" \
   -H "expo-channel-name: production" \
-  -H "expo-runtime-version: 1.0.7" \
+  -H "expo-runtime-version: 1.0.8" \
   -H "expo-platform: ios"
 ```
 

docs/subscription-system.md

@@ -216,6 +216,11 @@ The `get_recommended_questions()` function also filters premium packs:
 > `isProUser: false`, and paying users silently appear unsubscribed with no error.
 > Confirm the variable is set on every iOS and Android build profile.
 
+Production OTA publishes also fail before upload unless an isolated compiled
+Expo bundle contains both platform public SDK keys and this entitlement
+identifier. Run `npm run ota:preflight:production` from `apps/mobile`; it
+validates presence only and never prints those values.
+
 ## Subscription Flow Diagrams
 
 ### Purchase Flow

scripts/dev-local.test.mjs

@@ -0,0 +1,13 @@
+import assert from 'node:assert/strict';
+import { readFile } from 'node:fs/promises';
+import test from 'node:test';
+import { fileURLToPath } from 'node:url';
+
+const launcherPath = fileURLToPath(new URL('./dev-local.sh', import.meta.url));
+
+test('native launcher retains a UTF-8 locale after sanitizing its environment', async () => {
+  const launcher = await readFile(launcherPath, 'utf8');
+  const nativeCommand = launcher.slice(launcher.indexOf('cmd_native() {'), launcher.indexOf('\ncase "${1:-up}" in'));
+
+  assert.match(nativeCommand, /env -i[\s\S]*LANG=en_US\.UTF-8 LC_ALL=en_US\.UTF-8/);
+});