SQL Server

Rename Email Attachments After Adding

Demonstrates how to rename email attachments after adding but before sending. 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.

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

    EXEC sp_OASetProperty @mailman, 'SmtpHost', 'smtp.my-mail-server.com'
    EXEC sp_OASetProperty @mailman, 'SmtpUsername', 'MY_SMTP_USERNAME'
    EXEC sp_OASetProperty @mailman, 'SmtpPassword', 'MY_SMTP_PASSWORD'
    EXEC sp_OASetProperty @mailman, 'SmtpSsl', 1
    EXEC sp_OASetProperty @mailman, 'SmtpPort', 465

    DECLARE @email int
    EXEC @hr = sp_OACreate 'Chilkat.Email', @email OUT

    EXEC sp_OASetProperty @email, 'Subject', 'This is a test'
    EXEC sp_OASetProperty @email, 'Body', 'This is a test'
    EXEC sp_OASetProperty @email, 'From', 'Chilkat Support <support@chilkatsoft.com>'
    EXEC sp_OAMethod @email, 'AddTo', @success OUT, 'Chilkat Admin', 'admin@chilkatsoft.com'
    -- To add more recipients, call AddTo, AddCC, or AddBcc once per recipient.

    -- Add some attachments.
    -- The AddFileAttachment method returns the value of the content-type it chose for the attachment.
    DECLARE @contentType nvarchar(4000)
    EXEC sp_OAMethod @email, 'AddFileAttachment', @contentType OUT, 'qa_data/jpg/starfish.jpg'
    EXEC sp_OAGetProperty @email, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 <> 1
      BEGIN
        EXEC sp_OAGetProperty @email, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @mailman
        EXEC @hr = sp_OADestroy @email
        RETURN
      END
    EXEC sp_OAMethod @email, 'AddFileAttachment', @contentType OUT, 'qa_data/pdf/fishing.pdf'
    EXEC sp_OAGetProperty @email, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 <> 1
      BEGIN
        EXEC sp_OAGetProperty @email, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @mailman
        EXEC @hr = sp_OADestroy @email
        RETURN
      END

    -- If we save the email to a .eml, we can examine in a text editor.
    EXEC sp_OAMethod @email, 'SaveEml', @success OUT, 'qa_output/e1.eml'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @email, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0

        PRINT 'Failed to save .eml'
        EXEC @hr = sp_OADestroy @mailman
        EXEC @hr = sp_OADestroy @email
        RETURN
      END

    -- We see the following in the e1.eml
    -- Notice that Chilkat replaced the full path with just the filename.
    -- The full local path is not part of the email that gets sent..

    -- ...
    -- --------------020807050607070004010609
    -- Content-Type: image/jpeg; name="starfish.jpg"
    -- Content-Transfer-Encoding: base64
    -- Content-Disposition: attachment; filename="starfish.jpg"
    -- 
    -- ...
    -- --------------020807050607070004010609
    -- Content-Type: application/pdf; name="fishing.pdf"
    -- Content-Transfer-Encoding: base64
    -- Content-Disposition: attachment; filename="fishing.pdf"
    -- ...

    -- Before sending, each filename can be changed within the email object.
    -- For example:
    EXEC sp_OAMethod @email, 'SetAttachmentFilename', @success OUT, 0, 'orange_starfish.jpg'
    EXEC sp_OAMethod @email, 'SetAttachmentFilename', @success OUT, 1, 'tuna_fishing.pdf'

    -- Look at the new MIME source of the email in a  text editor...
    EXEC sp_OAMethod @email, 'SaveEml', @success OUT, 'qa_output/e2.eml'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @email, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0

        PRINT 'Failed to save .eml'
        EXEC @hr = sp_OADestroy @mailman
        EXEC @hr = sp_OADestroy @email
        RETURN
      END

    -- You'll see this:

    -- ...
    -- --------------020807050607070004010609
    -- Content-Type: image/jpeg; name="orange_starfish.jpg"
    -- Content-Transfer-Encoding: base64
    -- Content-Disposition: attachment; filename="orange_starfish.jpg"
    -- 
    -- ...
    -- --------------020807050607070004010609
    -- Content-Type: application/pdf; name="tuna_fishing.pdf"
    -- Content-Transfer-Encoding: base64
    -- Content-Disposition: attachment; filename="tuna_fishing.pdf"
    -- ...

    -- Send the email with the updated filenames..
    EXEC sp_OAMethod @mailman, 'SendEmail', @success OUT, @email
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @mailman, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @mailman
        EXEC @hr = sp_OADestroy @email
        RETURN
      END

    EXEC sp_OAMethod @mailman, 'CloseSmtpConnection', @success OUT
    IF @success <> 1
      BEGIN

        PRINT 'Connection to SMTP server not closed cleanly.'
      END


    PRINT 'Mail with attachments sent!'

    EXEC @hr = sp_OADestroy @mailman
    EXEC @hr = sp_OADestroy @email


END
GO