/
basicauthhandler.go
81 lines (63 loc) · 1.86 KB
/
basicauthhandler.go
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package mock
import (
"encoding/base64"
"net/http"
"strings"
"github.com/gorilla/mux"
"github.com/pkg/errors"
log "github.com/sirupsen/logrus"
)
const (
AuthorizationHeader = "Authorization"
)
type basicAuthHandler struct {
logger *log.Entry
}
func NewBasicAuthHandler() *basicAuthHandler {
return &basicAuthHandler{
logger: log.WithField("Handler", "BasicAuth"),
}
}
func (bah *basicAuthHandler) BasicAuth(w http.ResponseWriter, r *http.Request) {
err := bah.checkBasicAuth(r)
if err != nil {
bah.logger.Error(err.Error())
w.WriteHeader(http.StatusBadRequest)
return
}
w.WriteHeader(http.StatusOK)
}
func (bah *basicAuthHandler) BasicAuthSpec(w http.ResponseWriter, r *http.Request) {
err := bah.checkBasicAuth(r)
if err != nil {
bah.logger.Error(err.Error())
w.WriteHeader(http.StatusBadRequest)
return
}
http.ServeFile(w, r, "spec.json")
}
func (bah *basicAuthHandler) checkBasicAuth(r *http.Request) error {
vars := mux.Vars(r)
expectedUserName := vars["username"]
expectedPassword := vars["password"]
bah.logger.Infof("Handling BasicAuth request. Expected: username: %s, password: %s", expectedUserName, expectedPassword)
if expectedPassword == "" || expectedUserName == "" {
return errors.New("Expected credentials not provided")
}
authorizationHeader := r.Header.Get(AuthorizationHeader)
encodedCredentials := strings.TrimPrefix(authorizationHeader, "Basic ")
decoded, err := base64.StdEncoding.DecodeString(encodedCredentials)
if err != nil {
return errors.New("Failed to decode credentials")
}
credentials := strings.Split(string(decoded), ":")
if len(credentials) < 2 {
return errors.New("Decoded credentials are incomplete")
}
userName := credentials[0]
password := credentials[1]
if userName != expectedUserName || password != expectedPassword {
return errors.New("Invalid credentials provided")
}
return nil
}