feature: app connections

backend/src/services/app-connection/app-connection-fns.ts

@@ -0,0 +1,67 @@
+import { AppConnection, AppConnectionListItem, TAppConnection, TAppConnectionConfig } from "@app/lib/app-connections";
+import { getAwsAppConnectionListItem, validateAwsConnectionCredentials } from "@app/lib/app-connections/aws";
+import { getGitHubConnectionListItem, validateGitHubConnectionCredentials } from "@app/lib/app-connections/github";
+import { TAppConnectionServiceFactoryDep } from "@app/services/app-connection/app-connection-service";
+import { KmsDataKey } from "@app/services/kms/kms-types";
+
+export const listAppConnectionOptions = (): (AppConnectionListItem & Record<string, unknown>)[] => {
+  return [getAwsAppConnectionListItem(), getGitHubConnectionListItem()].sort((a, b) => a.name.localeCompare(b.name));
+};
+
+export const encryptAppConnectionCredentials = async ({
+  orgId,
+  credentials,
+  kmsService
+}: {
+  orgId: string;
+  credentials: TAppConnection["credentials"];
+  kmsService: TAppConnectionServiceFactoryDep["kmsService"];
+}) => {
+  const { encryptor } = await kmsService.createCipherPairWithDataKey({
+    type: KmsDataKey.Organization,
+    orgId
+  });
+
+  const { cipherTextBlob: encryptedCredentialsBlob } = encryptor({
+    plainText: Buffer.from(JSON.stringify(credentials))
+  });
+
+  return encryptedCredentialsBlob;
+};
+
+export const decryptAppConnectionCredentials = async ({
+  orgId,
+  encryptedCredentials,
+  kmsService
+}: {
+  orgId: string;
+  encryptedCredentials: Buffer;
+  kmsService: TAppConnectionServiceFactoryDep["kmsService"];
+}) => {
+  const { decryptor } = await kmsService.createCipherPairWithDataKey({
+    type: KmsDataKey.Organization,
+    orgId
+  });
+
+  const decryptedPlainTextBlob = decryptor({
+    cipherTextBlob: encryptedCredentials
+  });
+
+  return JSON.parse(decryptedPlainTextBlob.toString()) as TAppConnection["credentials"];
+};
+
+export const validateAppConnectionCredentials = async (
+  appConnection: TAppConnectionConfig
+): Promise<TAppConnection["credentials"]> => {
+  const { app } = appConnection;
+  switch (app) {
+    case AppConnection.AWS: {
+      return validateAwsConnectionCredentials(appConnection);
+    }
+    case AppConnection.GitHub:
+      return validateGitHubConnectionCredentials(appConnection);
+    default:
+      // eslint-disable-next-line @typescript-eslint/restrict-template-expressions
+      throw new Error(`Unhandled App Connection ${app}`);
+  }
+};