Objective-C

Get the text body content of a MIME part.

See more MIME Examples

Explains and demonstrates the GetBodyEncoded and GetBodyDecoded methods. This example uses the MIME test data located at http://www.chilkatsoft.com/testData/sampleMime1.txt

The sampleMime1.txt contains:

Content-Type: multipart/mixed;
 boundary="------------070404010201060604000708";

This is a multi-part message in MIME format.

--------------070404010201060604000708
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain; charset="utf-8";

Falsches =C3=9Cben von Xylophonmusik qu=C3=A4lt jeden gr=C3=B6=C3=9Feren Zwe=
rg.
--------------070404010201060604000708
Content-Transfer-Encoding: base64
Content-Type: text/plain; charset="utf-8";

RmFsc2NoZXMgw5xiZW4gdm9uIFh5bG9waG9ubXVzaWsgcXXDpGx0IGplZGVuIGdyw7bDn2VyZW4g
Wndlcmcu

--------------070404010201060604000708
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset="iso-8859-1";

Falsches Üben von Xylophonmusik quält jeden größeren Zwerg.
--------------070404010201060604000708--

Objective-C

#import <CkoMime.h>

BOOL success = NO;

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

CkoMime *mime = [[CkoMime alloc] init];

//  Load the sampleMime1.txt file into the MIME object.
//  (This file is available at http://www.chilkatsoft.com/testData/sampleMime1.txt )

success = [mime LoadMimeFile: @"sampleMime1.txt"];
if (success == NO) {
    NSLog(@"%@",mime.LastErrorText);
    return;
}

//  The sampleMime1.txt is a MIME document with a top-level 
//  multipart/mixed containing 3 sub-parts, each of which has the 
//  same body text but with different content-transfer-encodings and 
//  using different character encodings (utf-8 and iso-8859-1).

//  Calling mime.GetBodyEncoded or mime.GetBodyDecoded on the 
//  top-level multipart/mixed MIME object will return an empty string.
//  It is because the "body" of a multipart MIME object is always empty.
//  A multipart MIME object contains sub-parts (each a MIME object),
//  and it is only the leaf-objects that can have non-empty bodies.

//  Get GetBodyDecoded method returns the body text decoded
//  from whatever the content-transfer-encoding may be, and
//  converted from whatever charset encoding might be used.
//  In this case, calling GetBodyDecoded on each of the three
//  sub-parts will return the same string.
//  To demonstrate:
CkoMime *part1 = [[CkoMime alloc] init];
success = [mime PartAt: [NSNumber numberWithInt: 0] subPart: part1];
if (success == NO) {
    NSLog(@"%@",mime.LastErrorText);
    return;
}

NSLog(@"%@",[part1 GetBodyDecoded]);

CkoMime *part2 = [[CkoMime alloc] init];
success = [mime PartAt: [NSNumber numberWithInt: 1] subPart: part2];
if (success == NO) {
    NSLog(@"%@",mime.LastErrorText);
    return;
}

NSLog(@"%@",[part2 GetBodyDecoded]);

CkoMime *part3 = [[CkoMime alloc] init];
success = [mime PartAt: [NSNumber numberWithInt: 2] subPart: part3];
if (success == NO) {
    NSLog(@"%@",mime.LastErrorText);
    return;
}

NSLog(@"%@",[part3 GetBodyDecoded]);

//  The GetBodyEncoded method will NOT decode from 
//  whatever content-transfer-encoding is used.  However, it will
//  convert from whatever internal character encoding
//  may be used to return a string appropriate for the calling
//  programming language (for example, in .NET or any language
//  using ActiveX, all strings are Unicode..)
NSLog(@"%@",[part1 GetBodyEncoded]);
NSLog(@"%@",[part2 GetBodyEncoded]);
NSLog(@"%@",[part3 GetBodyEncoded]);