Make database parameter optional. (#22)

By making the database optional opens the scenario where we just want
to issue commands on the server (eg: to create a database),

- Fix: If the database name had spaces `mysql` call would fail
- Pass the password as an environment variable instead of command line.
Eliminates warning that password method passing is insecure.

__tests__/AzureMySqlAction.test.ts

@@ -3,19 +3,9 @@ import AzureMySqlActionHelper from '../src/AzureMySqlActionHelper';
 import MySqlConnectionStringBuilder from '../src/MySqlConnectionStringBuilder';
 import AzureMySqlAction, { IActionInputs } from '../src/AzureMySqlAction';
 
-jest.mock('../src/MySqlConnectionStringBuilder', () => {
-    return jest.fn().mockImplementation(() => {
-        return {
-            server: 'testmysqlserver.mysql.database.azure.com',
-            userId: 'testuser@testmysqlserver',
-            password: 'testpassword',
-            database: 'testdb'
-        }
-    })
-});
-
 describe('AzureMySqlAction tests', () => {
     it('executes sql file on target database', async () => {
+
         let inputs = getInputs();
         let action = new AzureMySqlAction(inputs);
 
@@ -26,7 +16,41 @@ describe('AzureMySqlAction tests', () => {
 
         expect(getMySqlClientPathSpy).toHaveBeenCalledTimes(1);
         expect(execSpy).toHaveBeenCalledTimes(1);
-        expect(execSpy).toHaveBeenCalledWith(`"mysql.exe" -h testmysqlserver.mysql.database.azure.com -D testdb -u testuser@testmysqlserver -t 10 -e "source ./testsqlfile.sql"`, ['--password=testpassword']);
+        expect(execSpy).toHaveBeenCalledWith(`"mysql.exe" -t 10`,
+            [
+                "-h", "testmysqlserver.mysql.database.azure.com",
+                "-u", "testuser@testmysqlserver",
+                "-e", "source ./testsqlfile.sql",
+                "-D", "testdb"
+            ], {
+            env: {
+                "MYSQL_PWD": "testpassword"
+            }
+        })
+    })
+
+    it('executes sql file on target server', async () => {
+
+        let inputsNoDB = getInputsNoDatabase();
+        let action = new AzureMySqlAction(inputsNoDB);
+
+        let getMySqlClientPathSpy = jest.spyOn(AzureMySqlActionHelper, 'getMySqlClientPath').mockResolvedValue('mysql.exe');
+        let execSpy = jest.spyOn(exec, 'exec').mockResolvedValue(0);
+
+        await action.execute();
+
+        expect(getMySqlClientPathSpy).toHaveBeenCalledTimes(1);
+        expect(execSpy).toHaveBeenCalledTimes(1);
+        expect(execSpy).toHaveBeenCalledWith(`"mysql.exe" -t 10`,
+            [
+                "-h", "testmysqlserver.mysql.database.azure.com",
+                "-u", "testuser@testmysqlserver",
+                "-e", "source ./testsqlfile.sql"
+            ], {
+            env: {
+                "MYSQL_PWD": "testpassword"
+            }
+        })
     })
 
     it('throws if mysql client fails to execute', async () => {
@@ -46,7 +70,16 @@ describe('AzureMySqlAction tests', () => {
 function getInputs() {
     return {
         serverName: 'testmysqlserver.mysql.database.azure.com',
-        connectionString: new MySqlConnectionStringBuilder('testmysqlserver.mysql.database.azure.com; Port=3306; Database=testdb; Uid=testuser@testmysqlserver; Pwd=testpassword; SslMode=Preferred'),
+        connectionString: new MySqlConnectionStringBuilder('Server=testmysqlserver.mysql.database.azure.com; Port=3306; Database=testdb; Uid=testuser@testmysqlserver; Pwd=testpassword; SslMode=Preferred'),
+        sqlFile: './testsqlfile.sql',
+        additionalArguments: '-t 10'
+    } as IActionInputs;
+}
+
+function getInputsNoDatabase() {
+    return {
+        serverName: 'testmysqlserver.mysql.database.azure.com',
+        connectionString: new MySqlConnectionStringBuilder('Server=testmysqlserver.mysql.database.azure.com; Port=3306; Uid=testuser@testmysqlserver; Pwd=testpassword; SslMode=Preferred'),
         sqlFile: './testsqlfile.sql',
         additionalArguments: '-t 10'
     } as IActionInputs;

__tests__/MySqlConnectionStringBuilder.test.ts

@@ -22,6 +22,20 @@ describe('MySqlConnectionStringBuilder tests', () => {
         });
     })
 
+    describe('validate no database specified', () => {
+        let validConnectionStrings = [
+            [`Server=testserver;User Id=user;Password=JustANormal123@#$password;`, 'validates values no db specified', `JustANormal123@#$password`]
+        ];
+    
+        it.each(validConnectionStrings)('Input `%s` %s', (connectionStringInput, testDescription, passwordOutput) => {
+            let connectionString = new MySqlConnectionStringBuilder(connectionStringInput);
+    
+            expect(connectionString.connectionString).toMatch(connectionStringInput);
+            expect(connectionString.password).toMatch(passwordOutput);
+            expect(connectionString.userId).toMatch(`user`);
+        });
+    })
+
     describe('throw for invalid connection strings', () => {
         let invalidConnectionStrings = [
             [`Server=testserver;User Id=user;Password="ab'=abcdf''c;123;Database=testdb`, 'validates values beginning with double quotes but not ending with double quotes'],

lib/AzureMySqlAction.js

@@ -29,7 +29,20 @@ class AzureMySqlAction {
         return __awaiter(this, void 0, void 0, function* () {
             core.debug('Begin executing action...');
             let mySqlClientPath = yield AzureMySqlActionHelper_1.default.getMySqlClientPath();
-            yield exec.exec(`"${mySqlClientPath}" -h ${this._inputs.serverName} -D ${this._inputs.connectionString.database} -u ${this._inputs.connectionString.userId} ${this._inputs.additionalArguments} -e "source ${this._inputs.sqlFile}"`, [`--password=${this._inputs.connectionString.password}`]);
+            let parameters = [
+                "-h", this._inputs.serverName,
+                "-u", this._inputs.connectionString.userId,
+                "-e", `source ${this._inputs.sqlFile}`,
+            ];
+            if (this._inputs.connectionString.database) {
+                parameters.push("-D");
+                parameters.push(this._inputs.connectionString.database);
+            }
+            yield exec.exec(`"${mySqlClientPath}" ${this._inputs.additionalArguments}`, parameters, {
+                env: {
+                    "MYSQL_PWD": this._inputs.connectionString.password
+                }
+            });
             console.log('Successfully executed sql file on target database');
         });
     }

lib/MySqlConnectionStringBuilder.js

@@ -101,8 +101,8 @@ class MySqlConnectionStringBuilder {
                 }
             }
         }
-        if (!parsedConnectionString.server || !parsedConnectionString.userId || !parsedConnectionString.password || !parsedConnectionString.database) {
-            throw new Error(`Missing required keys in connection string. Please ensure that the keys 'Server', 'User Id', 'Password', 'Database' are provided in the connection string.`);
+        if (!parsedConnectionString.server || !parsedConnectionString.userId || !parsedConnectionString.password) {
+            throw new Error(`Missing required keys in connection string. Please ensure that the keys 'Server', 'User Id', 'Password' are provided in the connection string.`);
         }
         return parsedConnectionString;
     }

lib/MySqlUtils.js

@@ -31,10 +31,13 @@ class MySqlUtils {
             try {
                 core.debug(`Validating if client has access to MySql Server '${serverName}'.`);
                 core.debug(`"${mySqlClientPath}" -h ${serverName} -u "${connectionString.userId}" -e "show databases"`);
-                yield exec.exec(`"${mySqlClientPath}" -h ${serverName} -u "${connectionString.userId}" -e "show databases"`, [`--password=${connectionString.password}`], {
+                yield exec.exec(`"${mySqlClientPath}" -h ${serverName} -u "${connectionString.userId}" -e "show databases"`, [], {
                     silent: true,
                     listeners: {
                         stderr: (data) => mySqlError += data.toString()
+                    },
+                    env: {
+                        "MYSQL_PWD": connectionString.password
                     }
                 });
             }

src/AzureMySqlAction.ts

@@ -17,9 +17,26 @@ export default class AzureMySqlAction {
 
     public async execute() {
         core.debug('Begin executing action...');
-        
+
         let mySqlClientPath = await AzureMySqlActionHelper.getMySqlClientPath();
-        await exec.exec(`"${mySqlClientPath}" -h ${this._inputs.serverName} -D ${this._inputs.connectionString.database} -u ${this._inputs.connectionString.userId} ${this._inputs.additionalArguments} -e "source ${this._inputs.sqlFile}"`, [`--password=${this._inputs.connectionString.password}`]);
+
+        let parameters = [
+            "-h", this._inputs.serverName,
+            "-u", this._inputs.connectionString.userId,
+            "-e", `source ${this._inputs.sqlFile}`,
+        ]
+
+        if (this._inputs.connectionString.database) {
+            parameters.push("-D")
+            parameters.push(this._inputs.connectionString.database)
+        }
+
+        await exec.exec(`"${mySqlClientPath}" ${this._inputs.additionalArguments}`,
+            parameters, {
+            env: {
+                "MYSQL_PWD": this._inputs.connectionString.password
+            }
+        });
         
         console.log('Successfully executed sql file on target database');
     }

src/MySqlConnectionStringBuilder.ts

@@ -113,8 +113,8 @@ export default class MySqlConnectionStringBuilder {
             }
         }
 
-        if (!parsedConnectionString.server || !parsedConnectionString.userId || !parsedConnectionString.password || !parsedConnectionString.database) {
-            throw new Error(`Missing required keys in connection string. Please ensure that the keys 'Server', 'User Id', 'Password', 'Database' are provided in the connection string.`);
+        if (!parsedConnectionString.server || !parsedConnectionString.userId || !parsedConnectionString.password) {
+            throw new Error(`Missing required keys in connection string. Please ensure that the keys 'Server', 'User Id', 'Password' are provided in the connection string.`);
         }
 
         return parsedConnectionString;

src/MySqlUtils.ts

@@ -11,10 +11,13 @@ export default class MySqlUtils {
         try {
             core.debug(`Validating if client has access to MySql Server '${serverName}'.`);
             core.debug(`"${mySqlClientPath}" -h ${serverName} -u "${connectionString.userId}" -e "show databases"`);
-            await exec.exec(`"${mySqlClientPath}" -h ${serverName} -u "${connectionString.userId}" -e "show databases"`, [`--password=${connectionString.password}`], {
+            await exec.exec(`"${mySqlClientPath}" -h ${serverName} -u "${connectionString.userId}" -e "show databases"`, [], {
                 silent: true,
                 listeners: {
                     stderr: (data: Buffer) => mySqlError += data.toString()
+                },
+                env: {
+                    "MYSQL_PWD": connectionString.password
                 }
             });
         }