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Source file src/mime/multipart/example_test.go

Documentation: mime/multipart

     1  // Copyright 2014 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package multipart_test
     6  
     7  import (
     8  	"fmt"
     9  	"io"
    10  	"io/ioutil"
    11  	"log"
    12  	"mime"
    13  	"mime/multipart"
    14  	"net/mail"
    15  	"strings"
    16  )
    17  
    18  func ExampleNewReader() {
    19  	msg := &mail.Message{
    20  		Header: map[string][]string{
    21  			"Content-Type": {"multipart/mixed; boundary=foo"},
    22  		},
    23  		Body: strings.NewReader(
    24  			"--foo\r\nFoo: one\r\n\r\nA section\r\n" +
    25  				"--foo\r\nFoo: two\r\n\r\nAnd another\r\n" +
    26  				"--foo--\r\n"),
    27  	}
    28  	mediaType, params, err := mime.ParseMediaType(msg.Header.Get("Content-Type"))
    29  	if err != nil {
    30  		log.Fatal(err)
    31  	}
    32  	if strings.HasPrefix(mediaType, "multipart/") {
    33  		mr := multipart.NewReader(msg.Body, params["boundary"])
    34  		for {
    35  			p, err := mr.NextPart()
    36  			if err == io.EOF {
    37  				return
    38  			}
    39  			if err != nil {
    40  				log.Fatal(err)
    41  			}
    42  			slurp, err := ioutil.ReadAll(p)
    43  			if err != nil {
    44  				log.Fatal(err)
    45  			}
    46  			fmt.Printf("Part %q: %q\n", p.Header.Get("Foo"), slurp)
    47  		}
    48  	}
    49  
    50  	// Output:
    51  	// Part "one": "A section"
    52  	// Part "two": "And another"
    53  }
    54  

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