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extract a certain part within a string


tran_dinh_ba

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Hi All,

 

I've been working on the project to receive email from pop3 server and extract email body into part (eg: images,text,attachment ...)

I'm encountering with a problem to extract some certain parts of the raw email below. I need your helps. All helps and suggestions are every welcome. I am very appreciated:

Below is an example of a part of raw email:

 

------=_NextPart_000_0033_01C8D883.0F39A2D0

Content-Type: image/gif;

name="image001.gif"

Content-Transfer-Encoding: base64

Content-ID: <[email protected]>

 

R0lGODlhAwEgAPQfAM7Ozv///6WlpYSEhHNzc2tra1paWiEYGP9CGP8xAL1SEN6thO+cQv+EAP/O

GP/OAM7Oxr29xjEA/2MA/5wA/+8A/+dK79573talzv8AnO9KjP8AY+eEnO9SY/8AGAAAACH/C01T

T0ZGSUNFOS4wGAAAAAxtc09QTVNPRkZJQ0U5LjAgJPn1cgAsAAAAAAMBIAAABf8gII5kaZ5oqq5s

675wLM90bd94ru987//AoHBILBqPyKRyyWwaBVCoExCRkqqCqXYri6Qi4NrhQyYbmgZyKf3hut8p

 

 

------=_NextPart_000_0033_01C8D883.0F39A2D0

Content-Type: image/jpeg;

name="image002.jpg"

Content-Transfer-Encoding: base64

Content-ID: <[email protected]>

 

/9j/4AAQSkZJRgABAgAAZABkAAD/7AARRHVja3kAAQAEAAAARgAA/+4AJkFkb2JlAGTAAAAAAQMA

FQQDBgoNAAAO1gAAEmYAAB2xAAAwb//bAIQABAMDAwMDBAMDBAYEAwQGBwUEBAUHCAYGBwYGCAoI

CQkJCQgKCgwMDAwMCgwMDQ0MDBERERERFBQUFBQUFBQUFAEEBQUIBwgPCgoPFA4ODhQUFBQUFBQU

FBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQU/8IAEQgAlgIWAwERAAIR

AQMRAf/EAN0AAQACAwEBAQAAAAAAAAAAAAABAgMEBQYHCAEBAAMBAQEBAAAAAAAAAAAAAAECAwQF

L1DQu4ylTP40bG5i8RjoVcHdB3whjUpKVGrj6/8A/9k=

 

------=_NextPart_000_0033_01C8D883.0F39A2D0--

 

WHAT I WANT TO OBTAIN FROM THE ABOVE IS:

1) return string:

R0lGODlhAwEgAPQfAM7Ozv///6WlpYSEhHNzc2tra1paWiEYGP9CGP8xAL1SEN6thO+cQv+EAP/O

GP/OAM7Oxr29xjEA/2MA/5wA/+8A/+dK79573talzv8AnO9KjP8AY+eEnO9SY/8AGAAAACH/C01T

T0ZGSUNFOS4wGAAAAAxtc09QTVNPRkZJQ0U5LjAgJPn1cgAsAAAAAAMBIAAABf8gII5kaZ5oqq5s

675wLM90bd94ru987//AoHBILBqPyKRyyWwaBVCoExCRkqqCqXYri6Qi4NrhQyYbmgZyKf3hut8p

 

2) return string:

/9j/4AAQSkZJRgABAgAAZABkAAD/7AARRHVja3kAAQAEAAAARgAA/+4AJkFkb2JlAGTAAAAAAQMA

FQQDBgoNAAAO1gAAEmYAAB2xAAAwb//bAIQABAMDAwMDBAMDBAYEAwQGBwUEBAUHCAYGBwYGCAoI

CQkJCQgKCgwMDAwMCgwMDQ0MDBERERERFBQUFBQUFBQUFAEEBQUIBwgPCgoPFA4ODhQUFBQUFBQU

FBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQU/8IAEQgAlgIWAwERAAIR

AQMRAf/EAN0AAQACAwEBAQAAAAAAAAAAAAABAgMEBQYHCAEBAAMBAQEBAAAAAAAAAAAAAAECAwQF

L1DQu4ylTP40bG5i8RjoVcHdB3whjUpKVGrj6/8A/9k=

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