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reader.go
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/
reader.go
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package csbouncer
import (
"io"
"bytes"
)
type SSEReader struct {
reader io.Reader
}
func newSSEReader(reader io.Reader) *SSEReader {
return &SSEReader{
reader: reader,
}
}
func alpha(r byte) byte {
if r != 0x1a && r > 0x00 {
return r
}
if r == 0x1a {
return 0x1a
}
return 0
}
func (a *SSEReader) Read(p []byte) (int, error) {
for {
buf := make([]byte, len(p))
n, err := a.reader.Read(buf)
if err != nil {
return n, err
}
buff := make([]byte, len(p))
for i := 0; i < n; i++ {
if char := alpha(buf[i]); char != 0 {
buff[i] = char
}
}
non_zero_count := len(buff) - bytes.Count(buff, []byte("\x00"))
p_non_zero_count := len(p) - bytes.Count(p, []byte("\x00"))
p = append(p[:p_non_zero_count], buff[:non_zero_count]...)
if p[len(p)-1] == 0x1a {
break
}
}
// Remove the EOF byte
p = bytes.Trim(p, "\x1a")
return len(p), nil
}