Rust Requires Chilkat v11.0.0+

Extract Files from Binary SOAP MTOM MIME

See more MIME Examples

This example demonstrates how to extract files from a binary SOAP MTOM MIME document. Rust

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

let mime = chilkat::Mime::new();

// In this example, we have a MIME file containing 8bit (non-encoded) binary data,
// and it is what I call "headless".  MIME is headless when it omits
// the top-level header.  The file we have here begins with the first
// boundary string.

// The structure the MIME to be loaded is:

// multipart/mixed (inferred because it is headless)
//     application/xop+xml
//     image/jpeg
//     image/gif
//     image/gif
// 

if mime.load_mime_file("qa_data/mime/headless_binary_soap_mtom_mime.mim").is_err() {
    println!("{}", mime.last_error_text());
    return;
}

// The MIME file loaded in this example contains this:

// --uuid:e74486f4-52b0-44b6-b829-156810fae20d
// Content-Type: application/xop+xml; charset=UTF-8; type="application/soap+xml"
// Content-Transfer-Encoding: binary
// Content-ID: <root.message@cxf.apache.org>
// 
// <soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope"><soap:Body> ... </soap:Body></soap:Envelope>
// --uuid:e74486f4-52b0-44b6-b829-156810fae20d
// Content-Type: image/jpeg
// Content-Transfer-Encoding: binary
// Content-ID: <beee83b7-166c-494c-890a-def990e9887b-1496@cxf.apache.org>
// Content-Disposition: attachment;name="-2049913191"
// 
// BINARY DATA HERE...
// 
// --uuid:e74486f4-52b0-44b6-b829-156810fae20d
// Content-Type: image/gif
// Content-Transfer-Encoding: binary
// Content-ID: <beee83b7-166c-494c-890a-def990e9887b-1497@cxf.apache.org>
// Content-Disposition: attachment;name="-2049913188"
// 
// BINARY DATA HERE...
// 
// --uuid:e74486f4-52b0-44b6-b829-156810fae20d
// Content-Type: image/gif
// Content-Transfer-Encoding: binary
// Content-ID: <beee83b7-166c-494c-890a-def990e9887b-1498@cxf.apache.org>
// Content-Disposition: attachment;name="-2049913185"
// 
// BINARY DATA HERE...
// 
// --uuid:e74486f4-52b0-44b6-b829-156810fae20d--

// Get the number of MIME sub-parts.
let num_parts = mime.num_parts();

// The 1st part at index 0 is the application/xop+xml.  We're just going to extract the JPG and GIF image files..
let sb_filename = chilkat::StringBuilder::new();
let mut name = String::new();
let mut i = 1;
let mp = chilkat::Mime::new();
while i < num_parts {

    let _ = mime.part_at(i, &mp);

    // By looking at the MIME above, the "name" attribute of the Content-Disposition header field seems
    // to be the only possible name we can use for each image..
    let _ = sb_filename.append("qa_output/");
    name = mp.get_header_field_attribute("Content-Disposition", "name").unwrap_or_default();
    let _ = sb_filename.append(&name);
    let _ = sb_filename.append(".");
    let _ = sb_filename.append(&mp.content_type());
    let num_replaced = sb_filename.replace("image/", "");
    let _ = mp.save_body(&sb_filename.get_as_string().unwrap_or_default());
    println!("output file: {}", sb_filename.get_as_string().unwrap_or_default());
    sb_filename.clear();
    i = i + 1;
}

println!("Success.");