// Read reads the body of a part, after its headers and before the
// next part (if any) begins.
Read reads the body of a part, after its headers and before the
next part (if any) begins.
// Read reads the body of a part after its headers and before the // next part ( if any ) begins .
func (p *Part) Read(d []byte) (n int, err error) {
	if p.buffer.Len() >= len(d) {
		return p.buffer.Read(d)
	}
	peek, err := p.mr.bufReader.Peek(4096) 
	unexpectedEof := err == io.EOF
	if err != nil && !unexpectedEof {
		return 0, fmt.Errorf("multipart: Part Read: %v", err)
	}
	if peek == nil {
		panic("nil peek buf")
	}
	nCopy := 0
	foundBoundary := false
	if idx := bytes.Index(peek, p.mr.nlDashBoundary); idx != -1 {
		nCopy = idx
		foundBoundary = true
	} else if safeCount := len(peek) - len(p.mr.nlDashBoundary); safeCount > 0 {
		nCopy = safeCount
	} else if unexpectedEof {
		return 0, io.ErrUnexpectedEOF
	}
	if nCopy > 0 {
		if _, err := io.CopyN(p.buffer, p.mr.bufReader, int64(nCopy)); err != nil {
			return 0, err
		}
	}
	n, err = p.buffer.Read(d)
	if err == io.EOF && !foundBoundary {
		err = nil
	}
	return
}
func ( p * Part ) Read ( d [ ] byte ) ( n int , err error ) { if p . buffer . Len ( ) >= len ( d ) { return p . buffer . Read ( d ) } peek , err := p . mr . bufReader . Peek ( 4096 ) unexpectedEof := err == io . EOF if err != nil && ! unexpectedEof { return 0 , fmt . Errorf ( " " , err ) } if peek == nil { panic ( " " ) } nCopy := 0 foundBoundary := false if idx := bytes . Index ( peek , p . mr . nlDashBoundary ) ; idx != - 1 { nCopy = idx foundBoundary = true } else if safeCount := len ( peek ) - len ( p . mr . nlDashBoundary ) ; safeCount > 0 { nCopy = safeCount } else if unexpectedEof { return 0 , io . ErrUnexpectedEOF } if nCopy > 0 { if _ , err := io . CopyN ( p . buffer , p . mr . bufReader , int64 ( nCopy ) ) ; err != nil { return 0 , err } } n , err = p . buffer . Read ( d ) if err == io . EOF && ! foundBoundary { err = nil } return }
Read reads the body of a part, after its headers and before the
next part (if any) begins.
Read reads the body of a part after its headers and before the next part ( if any ) begins .
// Internal buffer of unconsumed data is large enough for // the read request.  No need to parse more at the moment. // TODO(bradfitz): add buffer size accessor // Search the peek buffer for "\r\n--boundary". If found, // consume everything up to the boundary. If not, consume only // as much of the peek buffer as cannot hold the boundary // string. // If we've run out of peek buffer and the boundary // wasn't found (and can't possibly fit), we must have // hit the end of the file unexpectedly. // If the boundary hasn't been reached there's more to // read, so don't pass through an EOF from the buffer