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(SQL Server) HTTP Basic Auth with Secure Strings

Demonstrates how to do HTTP basic authentication using secure strings.

This example requires Chilkat v9.5.0.71 or greater.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

// Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
//
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @sTmp0 nvarchar(4000)
    -- This example requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @success int

    -- 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_9_5_0.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_9_5_0.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_9_5_0.SecureString', @ssLogin OUT

    DECLARE @ssPassword int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.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 @http int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.Http', @http OUT

    -- Cause the "Authorization: Basic ..." header to be added to HTTP requests
    -- by setting the Login and Password properties.  However, instead of setting the password property
    -- directly, set it via the SetPassword method using the secure string.
    EXEC sp_OAMethod @ssLogin, 'Access', @sTmp0 OUT
    EXEC sp_OASetProperty @http, 'Login', @sTmp0
    EXEC sp_OAMethod @http, 'SetPassword', @success OUT, @ssPassword

    -- Also indicate that Basic authentication is to be used..
    EXEC sp_OASetProperty @http, 'BasicAuth', 1

    -- Do an HTTP GET w/ Basic authentication.
    -- REMEMBER: Always use TLS with Basic authentication.  Otherwise your credentials are exposed for the world to see..

    DECLARE @responseStr nvarchar(4000)
    EXEC sp_OAMethod @http, 'QuickGetStr', @responseStr OUT, 'https://www.chilkatsoft.com/helloWorld.html'

    -- Show the request header we sent in the QuickGetStr:
    EXEC sp_OAGetProperty @http, 'LastHeader', @sTmp0 OUT
    PRINT @sTmp0

    -- The LastHeader looks something like this:

    -- GET /helloWorld.html HTTP/1.1
    -- Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
    -- Connection: keep-alive
    -- User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0
    -- Accept-Language: en-us,en;q=0.5
    -- Authorization: Basic bXlIdHRwTG9naW46bXlIdHRwUGFzc3dvcmQ=
    -- Accept-Encoding: gzip
    -- Host: www.chilkatsoft.com

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


END
GO

 

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