Get files from Flipper folder for every app on an iOS device

Summary:
Design doc: https://docs.google.com/document/d/1HLCFl46RfqG0o1mSt8SWrwf_HMfOCRg_oENioc1rkvQ/edit#

Fetch list of files in the `/sonar` folder on iOS devices and fetch all the files

Reviewed By: passy

Differential Revision: D40548410

fbshipit-source-id: d38cbbb1e3b5579c13f30777233e3caf7b8c9b34

desktop/flipper-server-core/src/devices/ios/IOSDevice.tsx

@@ -7,15 +7,25 @@
  * @format
  */
 
-import {DeviceType, timeout} from 'flipper-common';
+import {DeviceDebugData, DeviceType, timeout} from 'flipper-common';
 import {ChildProcess} from 'child_process';
 import {IOSBridge} from './IOSBridge';
 import {ServerDevice} from '../ServerDevice';
 import {FlipperServerImpl} from '../../FlipperServerImpl';
 import {iOSCrashWatcher} from './iOSCrashUtils';
 import {iOSLogListener} from './iOSLogListener';
+import {DebuggableDevice} from '../DebuggableDevice';
+import tmp, {DirOptions} from 'tmp';
+import {promisify} from 'util';
+import path from 'path';
+import {readFile} from 'fs/promises';
 
-export default class IOSDevice extends ServerDevice {
+const tmpDir = promisify(tmp.dir) as (options?: DirOptions) => Promise<string>;
+
+export default class IOSDevice
+  extends ServerDevice
+  implements DebuggableDevice
+{
   private recording?: {process: ChildProcess; destination: string};
   private iOSBridge: IOSBridge;
   readonly logListener: iOSLogListener;
@@ -128,6 +138,111 @@ export default class IOSDevice extends ServerDevice {
     );
   }
 
+  async readFlipperFolderForAllApps(): Promise<DeviceDebugData[]> {
+    console.debug('IOSDevice.readFlipperFolderForAllApps', this.info.serial);
+    const installedApps = await this.iOSBridge.getInstalledApps(
+      this.info.serial,
+    );
+    const userApps = installedApps.filter(
+      ({installType}) =>
+        installType === 'user' || installType === 'user_development',
+    );
+    console.debug(
+      'IOSDevice.readFlipperFolderForAllApps -> found apps',
+      this.info.serial,
+      userApps,
+    );
+
+    const appsCommandsResults = await Promise.all(
+      userApps.map(async (userApp): Promise<DeviceDebugData | undefined> => {
+        let sonarDirFileNames: string[];
+        try {
+          sonarDirFileNames = await this.iOSBridge.ls(
+            this.info.serial,
+            userApp.bundleID,
+            '/Library/Application Support/sonar',
+          );
+        } catch (e) {
+          console.debug(
+            'IOSDevice.readFlipperFolderForAllApps -> ignoring app as it does not have sonar dir',
+            this.info.serial,
+            userApp.bundleID,
+          );
+          return;
+        }
+
+        const dir = await tmpDir({unsafeCleanup: true});
+
+        const sonarDirContent = await Promise.all(
+          sonarDirFileNames.map(async (fileName) => {
+            const filePath = `/Library/Application Support/sonar/${fileName}`;
+
+            if (fileName.endsWith('pem')) {
+              return {
+                path: filePath,
+                data: '===SECURE_CONTENT===',
+              };
+            }
+            try {
+              await this.iOSBridge.pull(
+                this.info.serial,
+                filePath,
+                userApp.bundleID,
+                dir,
+              );
+            } catch (e) {
+              console.debug(
+                'IOSDevice.readFlipperFolderForAllApps -> Original idb pull failed. Most likely it is a physical device that requires us to handle the dest path dirrently. Forcing a re-try with the updated dest path. See D32106952 for details. Original error:',
+                this.info.serial,
+                userApp.bundleID,
+                fileName,
+                filePath,
+                e,
+              );
+              await this.iOSBridge.pull(
+                this.info.serial,
+                filePath,
+                userApp.bundleID,
+                path.join(dir, fileName),
+              );
+              console.debug(
+                'IOSDevice.readFlipperFolderForAllApps -> Subsequent idb pull succeeded. Nevermind previous wranings.',
+                this.info.serial,
+                userApp.bundleID,
+                fileName,
+                filePath,
+              );
+            }
+            return {
+              path: filePath,
+              data: await readFile(path.join(dir, fileName), {
+                encoding: 'utf-8',
+              }),
+            };
+          }),
+        );
+
+        return {
+          serial: this.info.serial,
+          appId: userApp.bundleID,
+          data: [
+            {
+              command: 'iOSBridge.ls /Library/Application Support/sonar',
+              result: sonarDirFileNames.join('\n'),
+            },
+            ...sonarDirContent,
+          ],
+        };
+      }),
+    );
+
+    return (
+      appsCommandsResults
+        // Filter out apps without Flipper integration
+        .filter((res): res is DeviceDebugData => !!res)
+    );
+  }
+
   disconnect() {
     if (this.recording) {
       this.stopScreenCapture();