Chilkat Examples

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SQL Server Examples

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(SQL Server) HTTPS Windows Integrated Authentication

This example pertains to running on the Windows operating system only.

It provides guidance on how to send HTTP requests using the current logged-on Windows user credentials. This is where NTLM/Negotiate authentication is used, but the login/password credentials are not explicitly provided by the application, but are implicitly provided based on the Windows logged-on user (i.e. the Windows account for the running process).

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 @iTmp0 int
    DECLARE @sTmp0 nvarchar(4000)
    -- This example requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @http int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.Http', @http OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    -- Chilkat implements the NTLM protocol directly, which is how it can be used on non-Windows systems.
    -- However, Chilkat can also optionally use Microsoft's SSPI (see https://docs.microsoft.com/en-us/windows/desktop/secauthn/ssp-packages-provided-by-microsoft) 
    -- to allow for Windows Integrated Authentication.

    -- Setting the HTTP Login equal to the empty string, and the Password equal to the keyword "default"
    -- will cause Chilkat to use the Microsoft SSPI w/ integrated authentication.
    EXEC sp_OASetProperty @http, 'Login', ''
    EXEC sp_OASetProperty @http, 'Password', 'default'

    -- We can also explicitly indicate that NTLM or Negotiate authentication is to be used:
    EXEC sp_OASetProperty @http, 'NegotiateAuth', 1

    -- Set various properties unrelated to authentication..
    -- Automatically follow redirects.
    EXEC sp_OASetProperty @http, 'FollowRedirects', 1
    -- Give verbose logging in the LastErrorText (in case there are errors)
    EXEC sp_OASetProperty @http, 'VerboseLogging', 1
    -- Optionally log the exact session to a file (for debugging)
    EXEC sp_OASetProperty @http, 'SessionLogFilename', 'c:/someDir/session.txt'
    -- Perhaps you wish to be seen as a browser on Mac OS X..
    EXEC sp_OASetProperty @http, 'UserAgent', 'Mozilla/5.0 (Windows NT; Windows NT 6.1; en-GB) AppleWebKit/534.6 (KHTML, like Gecko) Chrome/7.0.500.0 Safari/534.6'

    -- Note: If the result of authentication is to set Cookies that are used in subsequent requests,
    -- then make sure Chilkat both saves and sends cookies: 
    EXEC sp_OASetProperty @http, 'SaveCookies', 1
    EXEC sp_OASetProperty @http, 'SendCookies', 1
    EXEC sp_OASetProperty @http, 'CookieDir', 'memory'

    -- Send a GET request to a URL, using Windows Integrated Authentication...
    DECLARE @responseStr nvarchar(4000)
    EXEC sp_OAMethod @http, 'QuickGetStr', @responseStr OUT, 'https://somewhere.net/api/user'
    EXEC sp_OAGetProperty @http, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 <> 1
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        RETURN
      END


    EXEC sp_OAGetProperty @http, 'LastStatus', @iTmp0 OUT
    PRINT 'response status code = ' + @iTmp0

    PRINT 'response header:'
    EXEC sp_OAGetProperty @http, 'LastHeader', @sTmp0 OUT
    PRINT @sTmp0

    PRINT '----'

    PRINT @responseStr

    EXEC @hr = sp_OADestroy @http


END
GO

 

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