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package identityservice
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"gopkg.in/goose.v1/testservices/hook"
)
// Implement the v2 Key Pair form of identity based on Keystone
type KeyPairRequest struct {
Auth struct {
ApiAccessKeyCredentials struct {
AccessKey string `json:"accessKey"`
SecretKey string `json:"secretKey"`
} `json:"apiAccessKeyCredentials"`
TenantName string `json:"tenantName"`
} `json:"auth"`
}
type KeyPair struct {
hook.TestService
Users
services []V2Service
}
func NewKeyPair() *KeyPair {
return &KeyPair{
Users: Users{
users: make(map[string]UserInfo),
tenants: make(map[string]string),
},
}
}
func (u *KeyPair) RegisterServiceProvider(name, serviceType string, serviceProvider ServiceProvider) {
service := V2Service{name, serviceType, serviceProvider.Endpoints()}
u.AddService(Service{V2: service})
}
func (u *KeyPair) AddService(service Service) {
u.services = append(u.services, service.V2)
}
func (u *KeyPair) ReturnFailure(w http.ResponseWriter, status int, message string) {
e := ErrorWrapper{
Error: ErrorResponse{
Message: message,
Code: status,
Title: http.StatusText(status),
},
}
if content, err := json.Marshal(e); err != nil {
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(internalError)))
w.WriteHeader(http.StatusInternalServerError)
w.Write(internalError)
} else {
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(content)))
w.WriteHeader(status)
w.Write(content)
}
}
func (u *KeyPair) ServeHTTP(w http.ResponseWriter, r *http.Request) {
var req KeyPairRequest
// Testing against Canonistack, all responses are application/json, even failures
w.Header().Set("Content-Type", "application/json")
if r.Header.Get("Content-Type") != "application/json" {
u.ReturnFailure(w, http.StatusBadRequest, notJSON)
return
}
if content, err := ioutil.ReadAll(r.Body); err != nil {
w.WriteHeader(http.StatusBadRequest)
return
} else {
if err := json.Unmarshal(content, &req); err != nil {
u.ReturnFailure(w, http.StatusBadRequest, notJSON)
return
}
}
userInfo, errmsg := u.authenticate(req.Auth.ApiAccessKeyCredentials.AccessKey, req.Auth.ApiAccessKeyCredentials.SecretKey)
if errmsg != "" {
u.ReturnFailure(w, http.StatusUnauthorized, errmsg)
return
}
res, err := u.generateAccessResponse(userInfo)
if err != nil {
u.ReturnFailure(w, http.StatusInternalServerError, err.Error())
return
}
content, err := json.Marshal(res)
if err != nil {
u.ReturnFailure(w, http.StatusInternalServerError, err.Error())
return
}
w.WriteHeader(http.StatusOK)
w.Write(content)
}
func (u *KeyPair) generateAccessResponse(userInfo *UserInfo) (*AccessResponse, error) {
res := AccessResponse{}
// We pre-populate the response with genuine entries so that it looks sane.
if err := json.Unmarshal([]byte(exampleResponse), &res); err != nil {
return nil, err
}
res.Access.ServiceCatalog = u.services
res.Access.Token.Id = userInfo.Token
res.Access.Token.Tenant.Id = userInfo.TenantId
res.Access.User.Id = userInfo.Id
if err := u.ProcessControlHook("authorisation", u, &res, userInfo); err != nil {
return nil, err
}
return &res, nil
}
// setupHTTP attaches all the needed handlers to provide the HTTP API.
func (u *KeyPair) SetupHTTP(mux *http.ServeMux) {
mux.Handle("/tokens", u)
}
|