/
session.go
119 lines (112 loc) · 2.64 KB
/
session.go
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package web
import (
"encoding/base64"
"strings"
"github.com/powerpuffpenguin/webpc/db"
"github.com/powerpuffpenguin/webpc/m/helper"
"github.com/powerpuffpenguin/webpc/sessionid"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"github.com/gin-gonic/gin"
)
type sessionValue struct {
session *sessionid.Session
e error
}
func (h Helper) GetToken(c *gin.Context) string {
return h.getToken(c)
}
func (h Helper) getToken(c *gin.Context) string {
token := c.GetHeader(`Authorization`)
if token != `` {
return token
}
var obj struct {
AccessToken string `form:"access_token" uri:"access_token"`
}
c.ShouldBindUri(&obj)
if obj.AccessToken != `` {
return `Bearer ` + obj.AccessToken
}
c.ShouldBindQuery(&obj)
if obj.AccessToken != `` {
return `Bearer ` + obj.AccessToken
}
token, _ = c.Cookie(helper.CookieName)
if token != `` {
return `Bearer ` + token
}
return ``
}
func (h Helper) accessSession(c *gin.Context) (session *sessionid.Session, e error) {
token := h.getToken(c)
if strings.HasPrefix(token, `Bearer `) {
access := token[7:]
if c.Request.URL.Path == `/api/forward/v1/fs/download_access` {
var playdata string
playdata, e = sessionid.DefaultManager().Verify(access)
if e != nil {
return
}
var b []byte
b, e = base64.RawURLEncoding.DecodeString(playdata)
if e != nil {
return
}
var result sessionid.Session
e = result.Unmarshal(b)
if e != nil {
return
}
session = &result
} else {
session, e = sessionid.DefaultManager().Get(c.Request.Context(), access)
}
}
return
}
func (h Helper) ShouldBindSession(c *gin.Context) (session *sessionid.Session, e error) {
v, exists := c.Get(`session`)
if exists {
if cache, ok := (v).(sessionValue); ok {
session = cache.session
e = cache.e
return
}
}
session, e = h.accessSession(c)
if e == nil && session == nil {
e = status.Error(codes.PermissionDenied, `token not exists`)
}
c.Set(`session`, sessionValue{
session: session,
e: e,
})
return
}
func (h Helper) BindSession(c *gin.Context) (session *sessionid.Session, e error) {
session, e = h.ShouldBindSession(c)
if e != nil {
h.Error(c, e)
return
}
return
}
func (h Helper) ShouldBindUserdata(c *gin.Context) (userdata *sessionid.Session, e error) {
return h.ShouldBindSession(c)
}
func (h Helper) BindUserdata(c *gin.Context) (userdata *sessionid.Session, e error) {
return h.BindSession(c)
}
func (h Helper) CheckRoot(c *gin.Context) {
userdata, e := h.BindUserdata(c)
if e != nil {
c.Abort()
return
}
if userdata.AuthAny(db.Root) {
return
}
h.Error(c, status.Error(codes.PermissionDenied, `permission denied`))
c.Abort()
}