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goreplay/examples/middleware/echo.sh
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2021-08-04 13:48:36 +03:00

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#!/usr/bin/env bash
#
# `xxd` utility included into vim-common package
# It allow hex decoding/encoding
#
# This example may broke if you request contains `null` string, you may consider using pipes instead.
# See: https://github.com/buger/gor/issues/309
#
function log {
if [[ -n "$GOR_TEST" ]]; then # if we are not testing
# Logging to stderr, because stdout/stdin used for data transfer
>&2 echo "[DEBUG][ECHO] $1"
fi
}
while read line; do
decoded=$(echo -e "$line" | xxd -r -p)
header=$(echo -e "$decoded" | head -n +1)
payload=$(echo -e "$decoded" | tail -n +2)
encoded=$(echo -e "$header\n$payload" | xxd -p | tr -d "\\n")
log ""
log "==================================="
case ${header:0:1} in
"1")
log "Request type: Request"
;;
"2")
log "Request type: Original Response"
;;
"3")
log "Request type: Replayed Response"
;;
*)
log "Unknown request type $header"
esac
echo "$encoded"
log "==================================="
log "Original data: $line"
log "Decoded request: $decoded"
log "Encoded data: $encoded"
done;