PowerBuilder

Parse MIME to get Binary Data (such as GIF, JPG, or any binary file)

See more MIME Examples

Demonstrates how to parse a MIME to get binary data. This example extracts the image data for a GIF image to an in-memory byte array, and also to a file.

This example uses a MIME test file located at http://www.chilkatsoft.com/testData/sampleMime2.txt. It contains the following MIME:

Content-Type: multipart/mixed;
 boundary="------------080707010302060306060800";

This is a multi-part message in MIME format.

--------------080707010302060306060800
Content-Type: text/plain
Content-Transfer-Encoding: 7bit

This is the plain-text body.
--------------080707010302060306060800
Content-Disposition: attachment; filename="starfish.gif";
Content-Transfer-Encoding: base64
Content-Type: image/gif; name="starfish.gif";

R0lGODlhIAAgAPcAAP///+/v7/f39+/n5/fv7//39/fn597OzufW1tbGxs69vffe3u/W1salpZQQ
EIQYEJwQCJQYCJwYCM6clL2Ee5wpGIwhEK0YANatpdalnHMYCKUhCJQYAKUYAM6Ec5QhCJwhCPfW
zu/Oxta1rb17a6UhAK0hAPe9rb2Ec7V7a71rUpwpCL0xCJwhAOfOxta9tcatpdallM6cjMaUhK1C
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--------------080707010302060306060800--

PowerBuilder

integer li_rc
long li_Success
oleobject loo_Mime
oleobject loo_Part2
oleobject loo_Fac

li_Success = 0

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

loo_Mime = create oleobject
li_rc = loo_Mime.ConnectToNewObject("Chilkat.Mime")
if li_rc < 0 then
    destroy loo_Mime
    MessageBox("Error","Connecting to COM object failed")
    return
end if

//  Load the sampleMime2.txt file into the MIME object.
//  (This file is available at https://www.chilkatsoft.com/testData/sampleMime2.txt )

li_Success = loo_Mime.LoadMimeFile("sampleMime2.txt")
if li_Success = 0 then
    Write-Debug loo_Mime.LastErrorText
    destroy loo_Mime
    return
end if

//  The GIF image is the 2nd sub-part located directly under the
//  top-level MIME node.  Indexing begins at 0, therefore the 2nd
//  sub-part is at index 1.

loo_Part2 = create oleobject
li_rc = loo_Part2.ConnectToNewObject("Chilkat.Mime")

li_Success = loo_Mime.PartAt(1,loo_Part2)
if li_Success = 0 then
    Write-Debug loo_Mime.LastErrorText
    destroy loo_Mime
    destroy loo_Part2
    return
end if

//  The GetBodyBinary method returns the binary bytes
//  of the part's body, automatically decoded from whatever
//  content-transfer-encoding might be used (such as base64).
loo_BinaryData = loo_Part2.GetBodyBinary()

//  We now have the binary bytes of the GIF image in binaryData.
//  Save it to a file.
loo_Fac = create oleobject
li_rc = loo_Fac.ConnectToNewObject("Chilkat.FileAccess")

li_Success = loo_Fac.WriteEntireFile("out1.gif",loo_BinaryData)
if li_Success = 0 then
    Write-Debug loo_Fac.LastErrorText
    destroy loo_Mime
    destroy loo_Part2
    destroy loo_Fac
    return
end if

//  An easier way to save the body content to a file,
//  assuming your application does not need to access
//  the binary data in-memory, is to call SaveBody
li_Success = loo_Part2.SaveBody("out2.gif")
if li_Success = 0 then
    Write-Debug loo_Part2.LastErrorText
    destroy loo_Mime
    destroy loo_Part2
    destroy loo_Fac
    return
end if

Write-Debug "Finished."


destroy loo_Mime
destroy loo_Part2
destroy loo_Fac