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package kong
import (
"bytes"
"net/http"
"strings"
)
// String returns pointer to s.
func String(s string) *string {
return &s
}
// Bool returns a pointer to b.
func Bool(b bool) *bool {
return &b
}
// Int returns a pointer to i.
func Int(i int) *int {
return &i
}
func isEmptyString(s *string) bool {
return s == nil || strings.TrimSpace(*s) == ""
}
// StringSlice converts a slice of string to a
// slice of *string
func StringSlice(elements ...string) []*string {
var res []*string
for _, element := range elements {
e := element
res = append(res, &e)
}
return res
}
func stringArrayToString(arr []*string) string {
if arr == nil {
return "nil"
}
var buf bytes.Buffer
buf.WriteString("[ ")
l := len(arr)
for i, el := range arr {
buf.WriteString(*el)
if i != l-1 {
buf.WriteString(", ")
}
}
buf.WriteString(" ]")
return buf.String()
}
// headerRoundTripper injects Headers into requests
// made via RT.
type headerRoundTripper struct {
headers http.Header
rt http.RoundTripper
}
// RoundTrip satisfies the RoundTripper interface.
func (t headerRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
newRequest := new(http.Request)
*newRequest = *req
newRequest.Header = make(http.Header, len(req.Header))
for k, s := range req.Header {
newRequest.Header[k] = append([]string(nil), s...)
}
for k, v := range t.headers {
newRequest.Header[k] = v
}
return t.rt.RoundTrip(newRequest)
}
// RoundTripperWithHTTPHeaders returns a client which injects headers
// before sending any request.
func HTTPClientWithHeaders(client *http.Client,
headers http.Header) http.Client {
var res http.Client
if client == nil {
defaultTransport := http.DefaultTransport.(*http.Transport)
res.Transport = defaultTransport
} else {
res = *client
}
res.Transport = headerRoundTripper{
headers: headers,
rt: client.Transport,
}
return res
}
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