use oracledb purejs client

plugins/dbgate-plugin-oracle/package.json

@@ -36,5 +36,8 @@
     "lodash": "^4.17.21",
     "webpack": "^5.91.0",
     "webpack-cli": "^5.1.4"
+  },
+  "dependencies": {
+    "oracledb": "^6.5.1"
   }
 }

plugins/dbgate-plugin-oracle/src/backend/drivers.js

@@ -4,20 +4,10 @@ const stream = require('stream');
 const driverBases = require('../frontend/drivers');
 const Analyser = require('./Analyser');
 //--const pg = require('pg');
-//const oracledb = require('oracledb');
+const oracledb = require('oracledb');
 const { createBulkInsertStreamBase, makeUniqueColumnNames } = require('dbgate-tools');
 
 
-let requireOracledb; // native module
-
-let oracledbValue;
-function getOracledb() {
-  if (!oracledbValue) {
-    oracledbValue = requireOracledb();
-  }
-  return oracledbValue;
-}
-
 /*
 pg.types.setTypeParser(1082, 'text', val => val); // date
 pg.types.setTypeParser(1114, 'text', val => val); // timestamp without timezone
@@ -62,7 +52,7 @@ const drivers = driverBases.map(driverBase => ({
     authType,
     socketPath,
   }) {
-    client = await getOracledb().getConnection({
+    client = await oracledb.getConnection({
       user,
       password,
       connectString: useDatabaseUrl ? databaseUrl : port ? `${server}:${port}` : server,
@@ -283,10 +273,4 @@ const drivers = driverBases.map(driverBase => ({
   },
 }));
 
-drivers.initialize = dbgateEnv => {
-  if (dbgateEnv.nativeModules && dbgateEnv.nativeModules.oracledb) {
-    requireOracledb = dbgateEnv.nativeModules.oracledb;
-  }
-};
-
 module.exports = drivers;

plugins/dbgate-plugin-oracle/src/backend/index.js

@@ -3,7 +3,4 @@ const drivers = require('./drivers');
 module.exports = {
   packageName: 'dbgate-plugin-oracle',
   drivers,
-  initialize(dbgateEnv) {
-    drivers.initialize(dbgateEnv);
-  },
 };

plugins/dbgate-plugin-oracle/webpack-backend.config.js

@@ -22,7 +22,7 @@ var config = {
   plugins: [
     new webpack.IgnorePlugin({
       checkResource(resource) {
-        const lazyImports = ['oracledb', 'uws'];
+        const lazyImports = ['uws'];
         if (!lazyImports.includes(resource)) {
           return false;
         }