Add stub for doll-master and doll services, add required vendored libs

vendor/github.com/carlmjohnson/requests/transport.go

@@ -0,0 +1,128 @@
+package requests
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"net/http"
+	"regexp"
+	"strings"
+	"time"
+)
+
+// Transport is an alias of http.RoundTripper for documentation purposes.
+type Transport = http.RoundTripper
+
+// RoundTripFunc is an adaptor to use a function as an http.RoundTripper.
+type RoundTripFunc func(req *http.Request) (res *http.Response, err error)
+
+// RoundTrip implements http.RoundTripper.
+func (rtf RoundTripFunc) RoundTrip(r *http.Request) (*http.Response, error) {
+	return rtf(r)
+}
+
+var _ Transport = RoundTripFunc(nil)
+
+// ReplayString returns an http.RoundTripper that always responds with a
+// request built from rawResponse. It is intended for use in one-off tests.
+//
+// Deprecated: Use reqtest.ReplayString.
+func ReplayString(rawResponse string) Transport {
+	return RoundTripFunc(func(req *http.Request) (res *http.Response, err error) {
+		r := bufio.NewReader(strings.NewReader(rawResponse))
+		res, err = http.ReadResponse(r, req)
+		return
+	})
+}
+
+// UserAgentTransport returns a wrapped http.RoundTripper that sets the User-Agent header on requests to s.
+func UserAgentTransport(rt http.RoundTripper, s string) Transport {
+	if rt == nil {
+		rt = http.DefaultTransport
+	}
+	return RoundTripFunc(func(req *http.Request) (res *http.Response, err error) {
+		r2 := *req
+		r2.Header = r2.Header.Clone()
+		r2.Header.Set("User-Agent", s)
+		return rt.RoundTrip(&r2)
+	})
+}
+
+// PermitURLTransport returns a wrapped http.RoundTripper that rejects any requests whose URL doesn't match the provided regular expression string.
+//
+// PermitURLTransport will panic if the regexp does not compile.
+func PermitURLTransport(rt http.RoundTripper, regex string) Transport {
+	if rt == nil {
+		rt = http.DefaultTransport
+	}
+	re := regexp.MustCompile(regex)
+	reErr := fmt.Errorf("requested URL not permitted by regexp: %s", regex)
+	return RoundTripFunc(func(req *http.Request) (res *http.Response, err error) {
+		if u := req.URL.String(); !re.MatchString(u) {
+			return nil, reErr
+		}
+		return rt.RoundTrip(req)
+	})
+}
+
+// LogTransport returns a wrapped http.RoundTripper
+// that calls fn with details when a response has finished.
+// A response is considered finished
+// when the wrapper http.RoundTripper returns an error
+// or the Response.Body is closed,
+// whichever comes first.
+// To simplify logging code,
+// a nil *http.Response is replaced with a new http.Response.
+func LogTransport(rt http.RoundTripper, fn func(req *http.Request, res *http.Response, err error, duration time.Duration)) Transport {
+	if rt == nil {
+		rt = http.DefaultTransport
+	}
+	return RoundTripFunc(func(req *http.Request) (res *http.Response, err error) {
+		start := time.Now()
+		res, err = rt.RoundTrip(req)
+		if err != nil {
+			res2 := res
+			if res == nil {
+				res2 = new(http.Response)
+			}
+			fn(req, res2, err, time.Since(start))
+			return
+		}
+
+		res.Body = closeLogger{res.Body, func() {
+			fn(req, res, err, time.Since(start))
+		}}
+		return
+	})
+}
+
+type closeLogger struct {
+	io.ReadCloser
+	fn func()
+}
+
+func (cl closeLogger) Close() error {
+	cl.fn()
+	return cl.ReadCloser.Close()
+}
+
+// DoerTransport converts a Doer into a Transport.
+// It exists for compatibility with other libraries.
+// A Doer is an interface with a Do method.
+// Users should prefer Transport,
+// because Do is the interface of http.Client
+// which has higher level concerns.
+func DoerTransport(cl interface {
+	Do(req *http.Request) (*http.Response, error)
+}) Transport {
+	return RoundTripFunc(cl.Do)
+}
+
+// ErrorTransport always returns the specified error instead of connecting.
+// It is intended for use in testing
+// or to prevent accidental use of http.DefaultClient.
+func ErrorTransport(err error) Transport {
+	return RoundTripFunc(func(req *http.Request) (*http.Response, error) {
+		return nil, err
+	})
+}