feature: snowflake dynamic secrets

backend/src/ee/services/dynamic-secret/providers/snowflake.ts

@@ -0,0 +1,169 @@
+import handlebars from "handlebars";
+import { customAlphabet } from "nanoid";
+import snowflake from "snowflake-sdk";
+import { z } from "zod";
+
+import { alphaNumericNanoId } from "@app/lib/nanoid";
+
+import { DynamicSecretSnowflakeSchema, TDynamicProviderFns } from "./models";
+
+// destroy client requires callback...
+const noop = () => {};
+
+const generatePassword = (size = 48) => {
+  const charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_.~!*$#";
+  return customAlphabet(charset, 48)(size);
+};
+
+const generateUsername = () => {
+  return `infisical_${alphaNumericNanoId(32)}`; // username must start with alpha character, hence prefix
+};
+
+const getDaysToExpiry = (expiryDate: Date) => {
+  const start = new Date().getTime();
+  const end = new Date(expiryDate).getTime();
+  const diffTime = Math.abs(end - start);
+
+  return Math.ceil(diffTime / (1000 * 60 * 60 * 24));
+};
+
+export const SnowflakeProvider = (): TDynamicProviderFns => {
+  const validateProviderInputs = async (inputs: unknown) => {
+    const providerInputs = await DynamicSecretSnowflakeSchema.parseAsync(inputs);
+    return providerInputs;
+  };
+
+  const getClient = async (providerInputs: z.infer<typeof DynamicSecretSnowflakeSchema>) => {
+    const client = snowflake.createConnection({
+      account: `${providerInputs.orgId}-${providerInputs.accountId}`,
+      username: providerInputs.username,
+      password: providerInputs.password,
+      application: "Infisical"
+    });
+
+    await new Promise((resolve, reject) => {
+      client.connect((err) => {
+        if (err) {
+          return reject(err);
+        }
+
+        return resolve(true);
+      });
+    });
+
+    return client;
+  };
+
+  const validateConnection = async (inputs: unknown) => {
+    const providerInputs = await validateProviderInputs(inputs);
+    const client = await getClient(providerInputs);
+
+    const isValidConnection = await client.isValidAsync();
+
+    client.destroy(noop);
+
+    return isValidConnection;
+  };
+
+  const create = async (inputs: unknown, expireAt: number) => {
+    const providerInputs = await validateProviderInputs(inputs);
+
+    const client = await getClient(providerInputs);
+
+    const username = generateUsername();
+    const password = generatePassword();
+    const expiration = getDaysToExpiry(new Date(expireAt));
+
+    const creationStatement = handlebars.compile(providerInputs.creationStatement, { noEscape: true })({
+      username,
+      password,
+      expiration
+    });
+
+    try {
+      await new Promise((resolve, reject) => {
+        client.execute({
+          sqlText: creationStatement,
+          complete(err) {
+            if (err) {
+              return reject(err);
+            }
+
+            return resolve(true);
+          }
+        });
+      });
+    } finally {
+      client.destroy(noop);
+    }
+
+    return { entityId: username, data: { DB_USERNAME: username, DB_PASSWORD: password } };
+  };
+
+  const revoke = async (inputs: unknown, username: string) => {
+    const providerInputs = await validateProviderInputs(inputs);
+
+    const client = await getClient(providerInputs);
+
+    const revokeStatement = handlebars.compile(providerInputs.revocationStatement)({ username });
+
+    try {
+      await new Promise((resolve, reject) => {
+        client.execute({
+          sqlText: revokeStatement,
+          complete(err) {
+            if (err) {
+              return reject(err);
+            }
+
+            return resolve(true);
+          }
+        });
+      });
+    } finally {
+      client.destroy(noop);
+    }
+
+    return { entityId: username };
+  };
+
+  const renew = async (inputs: unknown, username: string, expireAt: number) => {
+    const providerInputs = await validateProviderInputs(inputs);
+
+    const client = await getClient(providerInputs);
+
+    const expiration = getDaysToExpiry(new Date(expireAt));
+
+    const renewStatement = handlebars.compile(providerInputs.renewStatement)({
+      username,
+      expiration
+    });
+
+    try {
+      await new Promise((resolve, reject) => {
+        client.execute({
+          sqlText: renewStatement,
+          complete(err) {
+            if (err) {
+              return reject(err);
+            }
+
+            return resolve(true);
+          }
+        });
+      });
+    } finally {
+      client.destroy(noop);
+    }
+
+    return { entityId: username };
+  };
+
+  return {
+    validateProviderInputs,
+    validateConnection,
+    create,
+    revoke,
+    renew
+  };
+};