ripple-api/app/websockets/identify.go

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package websockets
import (
"crypto/md5"
"crypto/sha256"
"encoding/json"
"fmt"
"database/sql"
2019-02-25 21:04:55 +00:00
"github.com/osuyozora/api/common"
)
type websocketUser struct {
ID int `json:"id"`
Username string `json:"username"`
UserPrivileges uint64 `json:"user_privileges"`
TokenPrivileges uint64 `json:"token_privileges"`
ApplicationID *string `json:"application_id"`
}
type identifyMessage struct {
Token string `json:"token"`
IsBearer bool `json:"is_bearer"`
}
// Identify sets the identity of the user.
func Identify(c *conn, message incomingMessage) {
var idMsg identifyMessage
err := json.Unmarshal(message.Data, &idMsg)
if err != nil {
c.WriteJSON(TypeInvalidMessage, err.Error())
return
}
var wsu websocketUser
if idMsg.IsBearer {
err = getBearerToken(idMsg.Token, &wsu)
} else {
err = db.Get(&wsu, `
SELECT
t.user as id, t.privileges as token_privileges,
u.username, u.privileges as user_privileges
FROM tokens t
INNER JOIN users u ON t.user = u.id
WHERE t.token = ?`, fmt.Sprintf("%x", md5.Sum([]byte(idMsg.Token))))
}
switch err {
case nil:
break
case sql.ErrNoRows:
c.WriteJSON(TypeNotFound, nil)
return
default:
common.WSErr(err)
c.WriteJSON(TypeUnexpectedError, nil)
return
}
wsu.TokenPrivileges = uint64(
common.Privileges(wsu.TokenPrivileges).CanOnly(
common.UserPrivileges(wsu.UserPrivileges),
),
)
c.Mtx.Lock()
c.User = &wsu
c.Mtx.Unlock()
c.WriteJSON(TypeIdentified, wsu)
}
func getBearerToken(token string, wsu *websocketUser) error {
var x struct {
Client string
Scope string
Extra int
}
err := db.Get(&x, "SELECT client, scope, extra FROM osin_access WHERE access_token = ? LIMIT 1", fmt.Sprintf("%x", sha256.Sum256([]byte(token))))
if err != nil {
return err
}
var userInfo struct {
Username string
Privileges uint64
}
err = db.Get(&userInfo, "SELECT username, privileges FROM users WHERE id = ? LIMIT 1", x.Extra)
if err != nil {
return err
}
wsu.ApplicationID = &x.Client
wsu.ID = x.Extra
wsu.Username = userInfo.Username
wsu.UserPrivileges = userInfo.Privileges
wsu.TokenPrivileges = uint64(common.OAuthPrivileges(x.Scope))
return nil
}