WIP: Manage Emulators automatically

README.md

@@ -10,6 +10,7 @@ The current features include:
 - Starting and managing an Android emulator
 - Collecting HTTP(S) traffic in HAR format
 - Automatic CA management and WireGuard mitmproxy setup
+- Automatic management of (Android) emulators: Creating and destroying, snapshots, restarting and -building for error recovery
 
 ## Installation  
 
@@ -49,7 +50,7 @@ The following example collects the traffic for an app in the Android emulator. I
             snapshotName: '<snapshot name>',
             startEmulatorOptions: {
                 emulatorName: '<emulator name>',
-            },
+            }
         },
     });
 
@@ -75,7 +76,49 @@ The following example collects the traffic for an app in the Android emulator. I
 })();
 ```
 
-Take a look at the [`examples/`](examples) folder for some more examples of how to use cyanoacrylate.
+### Use with multiple apps
+
+This library was designed in particular to enable long running analyses of many apps. If you want to do that, make sure to run `analysis.ensureDevice()` before every new app analysis, because it deals with any problems with the device and in particular emulator which might have come up in a previous analysis. If you leave the emulator management to cyanoacrylate, we might even rebuild the emulator completely from scratch. Also, you should wrap the app analysis in a `try {} catch () {}`-block, to catch any errors occurring in the emulator, which could be fixed by `ensureDevice` in a later run. The basic structure of an analysis might look like this:
+
+```ts
+const analysis = await startAnalysis({
+    platform: 'android',
+    runTarget: 'emulator',
+    capabilities: [],
+
+    targetOptions: {
+        // Let cyanoacrylate handle all the emulator stuff.
+        managed: true,
+        managedEmulatorOptions: {
+            key: 'test',
+        },
+    },
+});
+
+for (const app of apps) {
+    // Start the emulator and ensure that everything is set up correctly.
+    try {
+        await analysis.ensureDevice();
+
+        const appAnalysis = await analysis.startAppAnalysis(app);
+
+        // Do the app analysis, e.g. install the app, collect traffic…
+
+        const analysisResults = await appAnalysis.stop();
+        // Do something with the result.
+    } catch (error) {
+        if(typeof error === 'EmulatorError') {
+            // Handle the error, e.g. by adding the app back to the queue if you want to try again.
+            // EmulatorErrors are not always recoverable, though, so be careful not to create an infinite loop.
+        }
+    }
+
+}
+
+await analysis.stop();
+```
+
+Take a look at [`examples/mutiple-apps.ts`](examples/multiple-apps.ts) for a full working example.
 
 ## Additional metadata in exported HAR files
 

examples/managed-android-emulator.ts

@@ -0,0 +1,57 @@
+/* eslint-disable no-console */
+import { pause, startAnalysis } from '../src/index';
+
+// You can pass the following command line arguments:
+// `npx tsx examples/managed-android-emulator.ts <path to an APK to analyze>`
+
+(async () => {
+    const apkFile = process.argv[2];
+
+    if (!apkFile) throw Error('Please provide an APK file as the first argument.');
+
+    const analysis = await startAnalysis({
+        platform: 'android',
+        runTarget: 'emulator',
+        capabilities: ['frida', 'certificate-pinning-bypass'],
+
+        targetOptions: {
+            managed: true,
+            managedEmulatorOptions: {
+                key: 'examples-managed-android-emulator',
+
+                honeyData: {
+                    deviceName: 'Joyce’s Android Emulator',
+                    clipboard: 'CC: 5274 5520 2359 5935, CVC: 314, Exp: 01/28',
+                },
+            },
+
+            startEmulatorOptions: {
+                headless: true,
+            },
+        },
+    });
+
+    try {
+        await analysis.ensureDevice();
+
+        const appAnalysis = await analysis.startAppAnalysis(apkFile as `${string}.apk`);
+
+        await analysis.ensureTrackingDomainResolution();
+
+        console.log('Installing app…');
+        await appAnalysis.installApp();
+        console.log('Starting app…');
+        await appAnalysis.startApp();
+
+        await pause(6_000);
+
+        await appAnalysis.stop();
+    } catch (error: any) {
+        // Handle the error here, e.g. queue the app for analysis again etc.
+        console.error(error.message);
+    }
+
+    await analysis.stop();
+    console.log('Done.');
+})();
+/* eslint-enable no-console */

examples/multiple-apps.ts

@@ -4,53 +4,77 @@ import path from 'path';
 import { pause, startAnalysis } from '../src/index';
 
 // You can pass the following command line arguments:
-// `npx tsx examples/multiple-apps.ts <emulator name> <snapshot name> <path to a folder of single APKs>`
+// `npx tsx examples/multiple-apps.ts <path to a folder of single APKs> <emulator name> <snapshot name>`
 
 (async () => {
-    const emulatorName = process.argv[2] || 'emulator-name';
-    const snapshotName = process.argv[3] || 'snapshot-with-setup-emu';
-    const apkFolder = process.argv[4] || 'path/to/app-files';
+    const apkFolder = process.argv[2];
+    // If you do not specify these, cyanoacrylate will just create and manage its own emulator, prefixed
+    // `cyanoacrylate-examples-multiple-apps-`.
+    const emulatorName = process.argv[3];
+    const snapshotName = process.argv[4];
+
+    if (!apkFolder) throw Error('Please provide a folder of APKs as the first argument.');
 
     const analysis = await startAnalysis({
         platform: 'android',
         runTarget: 'emulator',
         capabilities: ['frida', 'certificate-pinning-bypass'],
-        targetOptions: {
-            snapshotName,
-            startEmulatorOptions: {
-                emulatorName,
-            },
-        },
+        targetOptions:
+            emulatorName && snapshotName
+                ? {
+                      snapshotName,
+                      startEmulatorOptions: {
+                          emulatorName,
+                      },
+                      managed: false,
+                  }
+                : {
+                      managed: true,
+                      managedEmulatorOptions: {
+                          key: 'examples-multiple-apps',
+                      },
+                  },
     });
 
-    await analysis.ensureDevice();
-
-    // The library was designed to do this for many apps in one go,
-    // so you can easily loop through an array of apps.
+    // The library was designed to do this for many apps in one go, so you can easily loop through an array of apps.
     const apks = await readdir(apkFolder);
     for (const apkFile of apks) {
-        const appAnalysis = await analysis.startAppAnalysis(path.join(apkFolder, apkFile) as `${string}.apk`);
+        console.log(`Analyzing ${apkFile}…`);
+
+        try {
+            console.log('Ensuring device…');
+            await analysis.ensureDevice();
+            await analysis.ensureTrackingDomainResolution();
+
+            const appAnalysis = await analysis.startAppAnalysis(path.join(apkFolder, apkFile) as `${string}.apk`);
 
-        await analysis.resetDevice();
-        // await analysis.ensureTrackingDomainResolution();
+            console.log('Installing app…');
+            await appAnalysis.installApp();
+            console.log('Setting app permissions…');
+            await appAnalysis.setAppPermissions();
 
-        await appAnalysis.installApp();
-        await appAnalysis.setAppPermissions();
-        await appAnalysis.startTrafficCollection();
-        await appAnalysis.startApp();
+            console.log('Starting app and traffic collection…');
+            await appAnalysis.startTrafficCollection();
+            await appAnalysis.startApp();
 
-        // Pause to wait for the app to generate network traffic.
-        await pause(6_000);
+            // Pause to wait for the app to generate network traffic.
+            await pause(6_000);
 
-        await appAnalysis.stopTrafficCollection();
+            console.log('Stopping app and traffic collection…');
+            await appAnalysis.stopTrafficCollection();
+            const result = await appAnalysis.stop();
 
-        const result = await appAnalysis.stop();
+            console.dir(result, { depth: null });
+            // {
+            //    app: { id: '<app id>',  name: '<app name>', version: '<app version>', ... },
+            //    traffic: { '2023-03-27T10:29:44.197Z': { log: ... } }  <- The traffic collections are named by a timestamp and contain the collected requests in the HAR format.
+            // }
 
-        console.dir(result, { depth: null });
-        // {
-        //    app: { id: '<app id>',  name: '<app name>', version: '<app version>', ... },
-        //    traffic: { '2023-03-27T10:29:44.197Z': { log: ... } }  <- The traffic collections are named by a timestamp and contain the collected requests in the HAR format.
-        // }
+            console.log();
+        } catch (error: any) {
+            // Handle the error here, e.g. queue the app for analysis again etc.
+            console.error(error.name, error.message);
+        }
     }
 
     await analysis.stop();

package.json

@@ -1,6 +1,6 @@
 {
     "name": "cyanoacrylate",
-    "version": "1.2.2",
+    "version": "1.2.4",
     "description": "Toolkit for large-scale automated traffic analysis of mobile apps on Android and iOS.",
     "bugs": "https://github.com/tweaselORG/cyanoacrylate/issues",
     "repository": {
@@ -38,12 +38,11 @@
         "prepack": "rm -rf dist && yarn build && yarn typedoc",
         "print-version": "echo \"// Shim to make the version available at runtime. Auto-generated, please ignore.\nexport const cyanoacrylateVersion = '$npm_package_version';\" > src/version.gen.ts",
         "test": "echo 'TODO: No tests specified yet.'",
-        "postversion": "yarn print-version && git add src/version.gen.ts",
         "watch": "parcel watch"
     },
     "husky": {
         "hooks": {
-            "pre-commit": "lint-staged && tsc && typedoc && git add docs"
+            "pre-commit": "lint-staged && tsc && typedoc && yarn print-version && git add docs src/version.gen.ts"
         }
     },
     "lint-staged": {
@@ -57,13 +56,14 @@
     "prettier": "@baltpeter/prettier-config",
     "dependencies": {
         "@types/har-format": "^1.2.10",
-        "andromatic": "^1.1.1",
-        "appstraction": "1.3.1",
+        "andromatic": "^1.1.2",
+        "appstraction": "file:.yalc/appstraction",
         "autopy": "^1.1.1",
         "cross-fetch": "^3.1.5",
         "ctrlc-windows": "^2.1.0",
-        "execa": "^7.0.0",
+        "execa": "7.1.1",
         "global-cache-dir": "^4.4.0",
+        "hash-object": "^5.0.1",
         "js-ini": "^1.6.0",
         "p-timeout": "^6.1.1",
         "tempy": "^3.0.0"
@@ -83,6 +83,7 @@
         "lint-staged": "13.1.1",
         "parcel": "2.8.3",
         "prettier": "2.8.4",
+        "type-fest": "^4.27.0",
         "typedoc": "0.23.25",
         "typedoc-plugin-markdown": "3.14.0",
         "typescript": "4.9.5"