SQL Server

REST Basic Auth with Secure Strings

Demonstrates how to do REST Basic authentication using secure strings.

This example requires Chilkat v9.5.0.71 or greater.

SQL Server

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    -- This example requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    -- Imagine we've previously saved our encrypted login and password within a JSON config file
    -- that contains this:

    -- {
    --   "http_login": "mCrOmA7mBA7Au9RuJGb9hw==",
    --   "http_password": "jJtiI9TgErTTpqBz9JtHBw=="
    -- }

    DECLARE @json int
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @json OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    EXEC sp_OAMethod @json, 'LoadFile', @success OUT, 'qa_data/passwords/http.json'

    DECLARE @crypt int
    EXEC @hr = sp_OACreate 'Chilkat.Crypt2', @crypt OUT

    -- These are the encryption settings we previously used to encrypt the credentials within the JSON config file.
    EXEC sp_OASetProperty @crypt, 'CryptAlgorithm', 'aes'
    EXEC sp_OASetProperty @crypt, 'CipherMode', 'cbc'
    EXEC sp_OASetProperty @crypt, 'KeyLength', 128
    EXEC sp_OAMethod @crypt, 'SetEncodedKey', NULL, '000102030405060708090A0B0C0D0E0F', 'hex'
    EXEC sp_OAMethod @crypt, 'SetEncodedIV', NULL, '000102030405060708090A0B0C0D0E0F', 'hex'
    EXEC sp_OASetProperty @crypt, 'EncodingMode', 'base64'

    DECLARE @ssLogin int
    EXEC @hr = sp_OACreate 'Chilkat.SecureString', @ssLogin OUT

    DECLARE @ssPassword int
    EXEC @hr = sp_OACreate 'Chilkat.SecureString', @ssPassword OUT

    -- Decrypt to the secure string.  (the strings will still held in memory encrypted, but are now encrypted using
    -- a randomly generated session key.)
    EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'http_login'
    EXEC sp_OAMethod @crypt, 'DecryptSecureENC', @success OUT, @sTmp0, @ssLogin
    EXEC sp_OAMethod @json, 'StringOf', @sTmp0 OUT, 'http_password'
    EXEC sp_OAMethod @crypt, 'DecryptSecureENC', @success OUT, @sTmp0, @ssPassword

    DECLARE @rest int
    EXEC @hr = sp_OACreate 'Chilkat.Rest', @rest OUT

    -- Connect to a REST server.
    DECLARE @bTls int
    SELECT @bTls = 1
    DECLARE @port int
    SELECT @port = 443
    DECLARE @bAutoReconnect int
    SELECT @bAutoReconnect = 1
    EXEC sp_OAMethod @rest, 'Connect', @success OUT, 'chilkatsoft.com', @port, @bTls, @bAutoReconnect

    -- Cause the "Authorization: Basic ..." header to be added to HTTP requests
    EXEC sp_OAMethod @rest, 'SetAuthBasicSecure', @success OUT, @ssLogin, @ssPassword

    DECLARE @responseJson nvarchar(4000)
    EXEC sp_OAMethod @rest, 'FullRequestNoBody', @responseJson OUT, 'GET', '/helloWorld.html'
    EXEC sp_OAGetProperty @rest, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 <> 1
      BEGIN
        EXEC sp_OAGetProperty @rest, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @json
        EXEC @hr = sp_OADestroy @crypt
        EXEC @hr = sp_OADestroy @ssLogin
        EXEC @hr = sp_OADestroy @ssPassword
        EXEC @hr = sp_OADestroy @rest
        RETURN
      END

    -- Show the LastRequestHeader that was sent.
    EXEC sp_OAGetProperty @rest, 'LastRequestHeader', @sTmp0 OUT
    PRINT @sTmp0

    -- The LastRequestHeader looks like this:

    -- Host: chilkatsoft.com
    -- Authorization: Basic bXlIdHRwTG9naW46bXlIdHRwUGFzc3dvcmQ=

    EXEC @hr = sp_OADestroy @json
    EXEC @hr = sp_OADestroy @crypt
    EXEC @hr = sp_OADestroy @ssLogin
    EXEC @hr = sp_OADestroy @ssPassword
    EXEC @hr = sp_OADestroy @rest


END
GO