Question

I have been trying to save a base64 file as an image from server side using classic ASP. What I want is it to autosave the file to a specific location and give it a filename, Now I am fine coding that aspect of it. However I can’t get the code to save the image without first rendering on a browser. This isn’t going to work for me as the script I am using will be an automatic export and have no user input.

Code follows as yet that renders in the webpage and asks the user where to save the image. Just to reiterate I need it to auto save (no user input)

base64String ="base64 code goes here - Wont add it as its huge amount of text"

Set tmpDoc = Server.CreateObject("MSXML2.DomDocument")
Set nodeB64 = tmpDoc.CreateElement("b64")
nodeB64.DataType = "bin.base64" ' stores binary as base64 string
nodeB64.Text = Mid(base64String, InStr(base64String, ",") + 1) ' append data text (all data after the comma)

vehicleAuditName= "Audit1"

With Response
   .Clear
   .ContentType = "image/png"
   .AddHeader "Content-Disposition", "attachment; filename=" & vehicleAuditName & ".png"
   .BinaryWrite nodeB64.NodeTypedValue 'get bytes and write
   .end
End With

Answer 1

use an adodb.stream object to store the image on the server side like so:

dim bStream : set bStream = server.CreateObject("ADODB.stream")

bStream.type = adTypeBinary

call bStream.Open()

call bStream.Write( binData )

call bStream.SaveToFile( FullName, adSaveCreateOverWrite)

call bStream.close()
set bStream = nothing