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gorso.go
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gorso.go
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// GORSO is a Riot OAuth API wrapper written in pure Go. Provides idiomatic access to RSO API endpoints
// Available at https://github.com/lf-group/gorso
//
// Example:
//
// var rso = gorso.NewClient(gorso.Client{
// ID: "CLIENT_ID",
// Secret: "CLIENT_SECRET",
// Redirect: "REDIRECT_URL",
// Shard: gorso.ShardEU,
// })
//
// func ExampleAuthUser() {
// code := "CLIENT_CODE" // code is obtained on a client side
//
// data, err := rso.GetToken(code)
// if err != nil {
// if errors.Is(err, gorso.ErrSystem) {
// panic(err)
// }
//
// return
// }
//
// fmt.Println(data.AccessToken)
// }
package gorso
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"net/url"
"strings"
"time"
)
// CodeResponse contains tokens to access user private data
type CodeResponse struct {
// A predefined data scope
Scope Scope `json:"scope"`
// Life span of the access token in sec
ExpiresIn time.Duration `json:"expires_in"`
// Method of authorization token provides
TokenType TokenType `json:"token_type"`
// Issued for the purpose of obtaining new access tokens when an older one expires
// To reissue an access token, use client.RefreshToken method
RefreshToken string `json:"refresh_token"`
// Decryptable JWT Token. Provides information to authenticate a player’s identity
IDToken string `json:"id_token"`
// The identifier of an existing session (SID) for the subject (player)
SubSID string `json:"sub_sid"`
// Undecryptable JWT Token
// Used for scoped authentication of a client and player to a resource
AccessToken string `json:"access_token"`
requestTime time.Time
}
// GetToken returns access&refresh tokens based on a provided code
func (c *Client) GetToken(code string) (*CodeResponse, error) {
client := http.Client{Timeout: c.getTimeout()}
formData := url.Values{}
formData.Add("grant_type", "authorization_code")
formData.Add("code", code)
formData.Add("redirect_uri", c.Redirect)
req, err := http.NewRequest(http.MethodPost, "https://auth.riotgames.com/token", strings.NewReader(formData.Encode()))
if err != nil {
return nil, NewErrorSystem("http_error", err)
}
c.addAuthHeader(req)
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
res, err := client.Do(req)
requestTime := time.Now()
if err != nil {
return nil, NewErrorSystem("http_err", err)
}
defer res.Body.Close()
body, err := ioutil.ReadAll(res.Body)
if err != nil {
return nil, NewErrorSystem("io_err", err)
}
if res.StatusCode != http.StatusOK {
// TODO: handle errors
return nil, NewError(res.StatusCode, body)
}
data := CodeResponse{}
err = json.Unmarshal(body, &data)
if err != nil {
return nil, NewErrorSystem("json_err", err)
}
data.requestTime = requestTime
return &data, nil
}
func (cr *CodeResponse) ValidUntil() time.Time {
return time.Now().Add(time.Hour * cr.ExpiresIn)
}
// RefreshResponse contains a token info to access user private data
type RefreshResponse struct {
// A predefined data scope
Scope Scope `json:"scope"`
// Life span of the access token in ms
ExpiresIn int `json:"expires_in"` // TODO: time.Duration
// Method of authorization token provides
TokenType TokenType `json:"token_type"`
// Issued for the purpose of obtaining new access tokens when an older one expires
// To reissue an access token, use client.RefreshToken method
RefreshToken string `json:"refresh_token"`
// Decryptable JWT Token. Provides information to authenticate a player’s identity
IDToken string `json:"id_token"`
// The identifier of an existing session (SID) for the subject (player)
SubSID string `json:"sub_sid"`
// Undecryptable JWT Token
// Used for scoped authentication of a client and player to a resource
AccessToken string `json:"access_token"`
}
// RefreshToken returns a new refresh token based on a provided refresh token
func (c *Client) RefreshToken(refreshToken string) (*CodeResponse, error) {
client := http.Client{Timeout: c.getTimeout()}
formData := url.Values{}
formData.Add("grant_type", "refresh_token")
formData.Add("refresh_token", refreshToken)
req, err := http.NewRequest(http.MethodPost, "https://auth.riotgames.com/token", strings.NewReader(formData.Encode()))
if err != nil {
return nil, NewErrorSystem("http_err", err)
}
c.addAuthHeader(req)
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
res, err := client.Do(req)
if err != nil {
return nil, NewErrorSystem("http_err", err)
}
defer res.Body.Close()
body, err := ioutil.ReadAll(res.Body)
if err != nil {
return nil, NewErrorSystem("io_err", err)
}
if res.StatusCode != http.StatusOK {
return nil, NewError(res.StatusCode, body)
}
data := CodeResponse{}
err = json.Unmarshal(body, &data)
if err != nil {
return nil, NewErrorSystem("json_err", err)
}
return &data, nil
}
type UserInfoResponse struct {
Sub string `json:"sub"`
JTI string `json:"jti"`
CPID string `json:"cpid,omitempty"`
}
// GetUserInfo returns user info based on a provided token
func (c *Client) GetUserInfo(token string) (*UserInfoResponse, error) {
client := http.Client{Timeout: c.getTimeout()}
req, err := http.NewRequest(http.MethodGet, "https://auth.riotgames.com/userinfo", nil)
if err != nil {
return nil, NewErrorSystem("http_err", err)
}
req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", token))
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
res, err := client.Do(req)
if err != nil {
return nil, NewErrorSystem("http_err", err)
}
defer res.Body.Close()
body, err := ioutil.ReadAll(res.Body)
if err != nil {
return nil, NewErrorSystem("io_err", err)
}
if res.StatusCode != http.StatusOK {
return nil, NewError(res.StatusCode, body)
}
fmt.Println(string(body))
data := UserInfoResponse{}
err = json.Unmarshal(body, &data)
if err != nil {
return nil, NewErrorSystem("json_err", err)
}
return &data, nil
}
type AccountResponse struct {
PUUID string `json:"puuid"`
GameName string `json:"gameName"`
TagLine string `json:"tagLine"`
}
// GetUserInfo returns user info based on a provided token
func (c *Client) GetAccount(token string) (*AccountResponse, error) {
client := http.Client{Timeout: c.getTimeout()}
endpoint := fmt.Sprint("https://", c.Shard, ".api.riotgames.com/riot/account/v1/accounts/me")
req, err := http.NewRequest(http.MethodGet, endpoint, nil)
if err != nil {
return nil, NewErrorSystem("http_err", err)
}
req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", token))
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
res, err := client.Do(req)
if err != nil {
return nil, NewErrorSystem("http_err", err)
}
defer res.Body.Close()
body, err := ioutil.ReadAll(res.Body)
if err != nil {
return nil, NewErrorSystem("io_err", err)
}
if res.StatusCode != http.StatusOK {
return nil, NewError(res.StatusCode, body)
}
data := AccountResponse{}
err = json.Unmarshal(body, &data)
if err != nil {
return nil, NewErrorSystem("json_err", err)
}
return &data, nil
}