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response_hook.go
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response_hook.go
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package cast
import (
"bytes"
"fmt"
)
type responseHook func(c *Cast, response *Response) error
var defaultResponseHooks = []responseHook{
dump,
}
func dump(cast *Cast, response *Response) error {
buffer := getBuffer()
defer putBuffer(buffer)
var err error
prt := func(buffer *bytes.Buffer, format string, a ...interface{}) {
if err != nil {
return
}
_, err = fmt.Fprintf(buffer, format, a...)
}
shouldPrintHeaders := cast.dumpFlag&fHeader != 0
if shouldPrintHeaders {
prt(buffer, "\nHeaders\n")
prt(buffer, "Request URL: %s\n", response.request.rawRequest.URL.String())
prt(buffer, "Request Method: %s\n", response.request.method)
prt(buffer, "Remote Address: %s\n", response.request.remoteAddress)
prt(buffer, "Status Code: %s\n", response.rawResponse.Status)
prt(buffer, "Version: %s\n", response.rawResponse.Proto)
prt(buffer, "Response Headers\n")
if err != nil {
return err
}
err = response.rawResponse.Header.Write(buffer)
if err != nil {
return err
}
prt(buffer, "Request Headers\n")
if err != nil {
return err
}
err = response.request.rawRequest.Header.Write(buffer)
if err != nil {
return err
}
prt(buffer, "\n")
if err != nil {
return err
}
}
shouldPrintParams := cast.dumpFlag&fParam != 0
if shouldPrintParams && len(response.body) <= defaultDumpBodyLimit {
prt(buffer, "Params\n")
if err != nil {
return err
}
if response.request.body != nil {
body, _ := response.request.body.Body()
prt(buffer, string(body))
}
prt(buffer, "\n")
if err != nil {
return err
}
}
shouldPrintResponse := cast.dumpFlag&fResponse != 0
if shouldPrintResponse && len(response.body) <= defaultDumpBodyLimit {
prt(buffer, "Response\n")
prt(buffer, string(response.body))
prt(buffer, "\n\n")
if err != nil {
return err
}
}
shouldPrintTimings := cast.dumpFlag&fTiming != 0
if shouldPrintTimings {
prt(buffer, "Timings\n")
prt(buffer, "DNS resolution: %s\n", response.request.prof.dnsCost)
prt(buffer, "Connecting: %s\n", response.request.prof.connectCost)
if err != nil {
return err
}
if response.request.prof.tlsHandshakeCost.Nanoseconds() > 0 {
prt(buffer, "TLS setup: %s\n", response.request.prof.tlsHandshakeCost)
if err != nil {
return err
}
}
prt(buffer, "Sending: %s\n", response.request.prof.sendingCost.String())
prt(buffer, "Waiting: %s\n", response.request.prof.waitingCost.String())
prt(buffer, "Receiving: %s\n", response.request.prof.receivingCost.String())
prt(buffer, "All: %s\n", response.request.prof.requestCost.String())
if err != nil {
return err
}
}
if buffer.Len() > 0 {
cast.Logger().Info(buffer.String())
}
return nil
}