/
auth.go
228 lines (195 loc) · 6.94 KB
/
auth.go
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package service
import (
"encoding/json"
"net/http"
"time"
"github.com/go-resty/resty/v2"
"github.com/michibiki-io/simple-http-fileserver/server/model"
"github.com/michibiki-io/simple-http-fileserver/server/utility"
"github.com/tidwall/gjson"
)
var apiRetryCount int = 3
var apiMinTimeoutMillsecond int = 500
var apiMaxTimeoutMillsecond int = 1000
var ApiAccessTokenKey = "access_token"
var ApiRefreshTokenKey = "refresh_token"
var ApiExpireInKey = "expire_in"
func init() {
apiRetryCount = utility.GetIntEnv("AUTH_SERVER_CALL_RETRY_COUNT", apiRetryCount)
apiMinTimeoutMillsecond = utility.GetIntEnv("AUTH_SERVER_CALL_MIN_TIMEOUT", apiMinTimeoutMillsecond)
apiMaxTimeoutMillsecond = utility.GetIntEnv("AUTH_SERVER_CALL_MAX_TIMEOUT", apiMaxTimeoutMillsecond)
ApiAccessTokenKey = utility.
GetEnv("AUTH_SERVER_ACCESS_TOKEN_JSON_PATH", ApiAccessTokenKey)
ApiRefreshTokenKey = utility.
GetEnv("AUTH_SERVER_REFRESH_TOKEN_JSON_PATH", ApiRefreshTokenKey)
ApiExpireInKey = utility.
GetEnv("AUTH_SERVER_EXPIREIN_JSON_PATH", ApiExpireInKey)
}
type ApiClientService struct{}
var client = resty.New()
func check(a *ApiClientService, c *resty.Client) (error error) {
error = nil
if a == nil {
error = utility.NewError("instance is nil", utility.InternalServerError)
return
} else if client == nil {
error = utility.NewError("resty client is nil", utility.InternalServerError)
return
}
return
}
func callApiWrapper(uri string, param interface{}) (result map[string]interface{}, error error) {
resp, err := client.
SetRetryCount(apiRetryCount-1).
SetRetryWaitTime(time.Duration(apiMinTimeoutMillsecond)*time.Millisecond).
SetRetryMaxWaitTime(time.Duration(apiMaxTimeoutMillsecond)*time.Second).
R().
SetHeader("Content-Type", "application/json").
SetBody(param).
SetResult(map[string]interface{}{}).
Post(uri)
if err != nil {
utility.Log.Debug("resty error occured: %s", err.Error())
error = utility.NewError("no responce from auth server", utility.InternalServerError)
return
} else if resp.StatusCode() == http.StatusOK {
result = (*resp.Result().(*map[string]interface{}))
return
} else if resp.StatusCode() == http.StatusUnauthorized {
error = utility.NewError("no auth", utility.Unauthorized)
return
} else {
utility.Log.Debug("resty error occured: %s", err.Error())
error = utility.NewError("nother error", utility.InternalServerError)
return
}
}
func (a *ApiClientService) Authorize(auth model.Auth) (token model.TokenSet, error error) {
token = model.TokenSet{}
error = nil
if err := check(a, client); err != nil {
error = err
return
} else if result, err := callApiWrapper(utility.
GetEnv("AUTH_SERVER_AUTH_URL", "http://localhost:80/v1/authorize"), auth); err != nil {
error = err
return
} else {
error = nil
if access_token, ok := result[ApiAccessTokenKey]; ok {
token.AccessToken = access_token.(string)
}
if refresh_token, ok := result[ApiRefreshTokenKey]; ok {
token.RefreshToken = refresh_token.(string)
}
if expire_in, ok := result[ApiExpireInKey]; ok {
if expire_in2, ok := expire_in.(float64); ok {
token.Expires = time.Now().Add(time.Duration(int(expire_in2)) * time.Second).Unix()
}
}
return
}
}
func (a *ApiClientService) Verify(accessToken string) (user model.User, error error) {
user = model.User{}
error = nil
if err := check(a, client); err != nil {
error = err
return
} else if len(accessToken) == 0 {
error = utility.NewError("access_token is empty", utility.Unauthorized)
return
} else if result, err := callApiWrapper(utility.
GetEnv("AUTH_SERVER_VERIFY_URL", "http://localhost:80/v1/verify"), map[string]string{ApiAccessTokenKey: accessToken}); err != nil {
error = err
return
} else {
// result to json
if bytes, err := json.Marshal(result); err != nil {
error = utility.NewError("Auth server return unexpected value, not a json", utility.InternalServerError)
return
} else {
if expire_in, ok := result[ApiExpireInKey]; ok {
if expire_in2, ok := expire_in.(float64); ok {
if expire_in2 > float64(utility.GetIntEnv("SESSION_STORE_USER_MAX_AGE", 300)) {
expire_in2 = float64(utility.GetIntEnv("SESSION_STORE_USER_MAX_AGE", 300))
}
user.Expires = time.Now().Add(time.Duration(int(expire_in2)) * time.Second).Unix()
}
}
// get user and groups
if gjUser := gjson.Get(string(bytes), utility.
GetEnv("AUTH_SERVER_USERID_JSON_PATH", "user.Id")); !gjUser.Exists() {
error = utility.NewError("cannot get user auth info", utility.InternalServerError)
user.Expires = 0
return
} else if gjGroup := gjson.Get(string(bytes), utility.
GetEnv("AUTH_SERVER_GROUP_JSON_PATH", "user.Groups")); !gjGroup.Exists() {
error = utility.NewError("cannot get user belonging group info", utility.InternalServerError)
user.Expires = 0
return
} else {
user.Id = gjUser.String()
if err := json.Unmarshal([]byte(gjGroup.String()), &user.Groups); err != nil {
utility.Log.Debug("group json is not a list")
}
return
}
}
}
}
func (a *ApiClientService) Refresh(refreshToken string) (tokenSet model.TokenSet, error error) {
tokenSet = model.TokenSet{}
error = nil
if err := check(a, client); err != nil {
error = err
return
} else if len(refreshToken) == 0 {
error = utility.NewError("refresh_token is empty", utility.Unauthorized)
return
} else if result, err := callApiWrapper(utility.
GetEnv("AUTH_SERVER_REFRESH_URL", "http://localhost:80/v1/refresh"), map[string]string{ApiRefreshTokenKey: refreshToken}); err != nil {
error = err
return
} else {
// result to json
if bytes, err := json.Marshal(result); err != nil {
error = utility.NewError("Auth server return unexpected value, not a json", utility.InternalServerError)
return
} else {
if expire_in, ok := result[ApiExpireInKey]; ok {
if expire_in2, ok := expire_in.(float64); ok {
tokenSet.Expires = time.Now().Add(time.Duration(int(expire_in2)) * time.Second).Unix()
}
}
if gjAccessToken := gjson.Get(string(bytes), ApiAccessTokenKey); !gjAccessToken.Exists() {
error = utility.NewError("cannot get access_token", utility.InternalServerError)
tokenSet.Expires = 0
return
} else if gjRefreshToken := gjson.Get(string(bytes), ApiRefreshTokenKey); !gjRefreshToken.Exists() {
error = utility.NewError("cannot get refresh_token", utility.InternalServerError)
return
} else {
tokenSet.AccessToken = gjAccessToken.String()
tokenSet.RefreshToken = gjRefreshToken.String()
return
}
}
}
}
func (a *ApiClientService) Deauthorize(accessToken string) (error error) {
error = nil
if err := check(a, client); err != nil {
error = err
return
} else if len(accessToken) == 0 {
error = utility.NewError("access_token is empty", utility.Unauthorized)
return
} else if _, err := callApiWrapper(utility.
GetEnv("AUTH_SERVER_DEAUTH_URL", "http://localhost:80/v1/deauthorize"), map[string]string{ApiRefreshTokenKey: accessToken}); err != nil {
error = err
return
} else {
return
}
}