Improve url handling (#290)

* improve url handling
---------

Signed-off-by: Vikrant Puppala <[email protected]>

Author: vikrantpuppala

Diff for: lib/connection/connections/HttpConnection.ts

@@ -98,7 +98,9 @@ export default class HttpConnection implements IConnectionProvider {
 
       this.connection = new ThriftHttpConnection(
         {
-          url: `${options.https ? 'https' : 'http'}://${options.host}:${options.port}${options.path ?? '/'}`,
+          url: `${options.https ? 'https' : 'http'}://${options.host.replace(/\/$/, '')}:${options.port}${
+            options.path ? (options.path.startsWith('/') ? '' : '/') + options.path.replace(/\/$/, '') : '/'
+          }`,
           transport: thrift.TBufferedTransport,
           protocol: thrift.TBinaryProtocol,
           getRetryPolicy: () => this.getRetryPolicy(),

Diff for: tests/unit/connection/connections/HttpConnection.test.ts

@@ -2,7 +2,7 @@ import http from 'http';
 import { expect } from 'chai';
 import HttpConnection from '../../../../lib/connection/connections/HttpConnection';
 import ThriftHttpConnection from '../../../../lib/connection/connections/ThriftHttpConnection';
-
+import IConnectionOptions from '../../../../lib/connection/contracts/IConnectionOptions';
 import ClientContextStub from '../../.stubs/ClientContextStub';
 
 describe('HttpConnection.connect', () => {
@@ -127,4 +127,54 @@ describe('HttpConnection.connect', () => {
       ...extraHeaders,
     });
   });
+
+  it('should handle trailing slashes in host correctly', async () => {
+    interface TestCase {
+      input: {
+        host: string;
+        path?: string;
+      };
+      expected: string;
+    }
+
+    const testCases: TestCase[] = [
+      {
+        input: { host: 'xyz.com/', path: '/sql/v1' },
+        expected: 'https://xyz.com:443/sql/v1',
+      },
+      {
+        input: { host: 'xyz.com', path: '/sql/v1' },
+        expected: 'https://xyz.com:443/sql/v1',
+      },
+      {
+        input: { host: 'xyz.com/', path: undefined },
+        expected: 'https://xyz.com:443/',
+      },
+      {
+        input: { host: 'xyz.com', path: 'sql/v1' },
+        expected: 'https://xyz.com:443/sql/v1',
+      },
+      {
+        input: { host: 'xyz.com/', path: 'sql/v1' },
+        expected: 'https://xyz.com:443/sql/v1',
+      },
+      {
+        input: { host: 'xyz.com', path: 'sql/v1/' },
+        expected: 'https://xyz.com:443/sql/v1',
+      },
+    ];
+
+    for (const testCase of testCases) {
+      const options: IConnectionOptions = {
+        host: testCase.input.host,
+        port: 443,
+        path: testCase.input.path,
+        https: true,
+      };
+
+      const connection = new HttpConnection(options, new ClientContextStub());
+      const thriftConnection = await connection.getThriftConnection();
+      expect(thriftConnection.url).to.be.equal(testCase.expected);
+    }
+  });
 });