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2b4815a9f5
Allows for debugging the payloads that are sent in client mode to the ssh server. Required to be run with --log-directory to capture logging output. Additionally has maximum limit that is provided with the flag that will only capture the first N number of reads plus writes through the WebSocket stream. These reads/writes are not directly captured at the packet boundary so some reconstruction from the log messages will be required. Added User-Agent for all out-going cloudflared access tcp requests in client mode. Added check to not run terminal logging in cloudflared access tcp client mode to not obstruct the stdin and stdout.
65 lines
1.2 KiB
Go
65 lines
1.2 KiB
Go
package stream
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import (
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"io"
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"sync/atomic"
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"github.com/rs/zerolog"
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)
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// DebugStream will tee each read and write to the output logger as a debug message
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type DebugStream struct {
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reader io.Reader
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writer io.Writer
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log *zerolog.Logger
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max uint64
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count atomic.Uint64
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}
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func NewDebugStream(stream io.ReadWriter, logger *zerolog.Logger, max uint64) *DebugStream {
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return &DebugStream{
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reader: stream,
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writer: stream,
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log: logger,
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max: max,
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}
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}
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func (d *DebugStream) Read(p []byte) (n int, err error) {
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n, err = d.reader.Read(p)
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if n > 0 && d.max > d.count.Load() {
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d.count.Add(1)
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if err != nil {
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d.log.Err(err).
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Str("dir", "r").
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Int("count", n).
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Msgf("%+q", p[:n])
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} else {
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d.log.Debug().
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Str("dir", "r").
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Int("count", n).
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Msgf("%+q", p[:n])
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}
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}
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return
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}
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func (d *DebugStream) Write(p []byte) (n int, err error) {
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n, err = d.writer.Write(p)
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if n > 0 && d.max > d.count.Load() {
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d.count.Add(1)
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if err != nil {
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d.log.Err(err).
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Str("dir", "w").
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Int("count", n).
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Msgf("%+q", p[:n])
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} else {
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d.log.Debug().
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Str("dir", "w").
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Int("count", n).
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Msgf("%+q", p[:n])
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}
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}
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return
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}
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