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Merge pull request #1507 from yydzero/develop

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Retrieve session identifier from cookie and query parameters
This commit is contained in:
astaxie 2015-12-27 11:01:04 +08:00
commit 37dff6be28
1 changed files with 54 additions and 52 deletions
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106
session/session.go
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@ -133,63 +133,65 @@ func NewManager(provideName, config string) (*Manager, error) {
}, nil
}
// SessionStart Start session. generate or read the session id from http request.
// if session id exists, return SessionStore with this id.
func (manager *Manager) SessionStart(w http.ResponseWriter, r *http.Request) (session Store, err error) {
// getSid retrieves session identifier from HTTP Request.
// First try to retrieve id by reading from cookie, session cookie name is configurable,
// if not exist, then retrieve id from querying parameters.
//
// error is not nil when there is anything wrong.
// sid is empty when need to generate a new session id
// otherwise return an valid session id.
func (manager *Manager) getSid(r *http.Request) (string, error) {
cookie, errs := r.Cookie(manager.config.CookieName)
if errs != nil || cookie.Value == "" {
sid, errs := manager.sessionID(r)
errs := r.ParseForm()
if errs != nil {
return nil, errs
}
session, err = manager.provider.SessionRead(sid)
cookie = &http.Cookie{
Name: manager.config.CookieName,
Value: url.QueryEscape(sid),
Path: "/",
HttpOnly: true,
Secure: manager.isSecure(r),
Domain: manager.config.Domain,
}
if manager.config.CookieLifeTime > 0 {
cookie.MaxAge = manager.config.CookieLifeTime
cookie.Expires = time.Now().Add(time.Duration(manager.config.CookieLifeTime) * time.Second)
}
if manager.config.EnableSetCookie {
http.SetCookie(w, cookie)
}
r.AddCookie(cookie)
} else {
sid, errs := url.QueryUnescape(cookie.Value)
if errs != nil {
return nil, errs
}
if manager.provider.SessionExist(sid) {
session, err = manager.provider.SessionRead(sid)
} else {
sid, err = manager.sessionID(r)
if err != nil {
return nil, err
}
session, err = manager.provider.SessionRead(sid)
cookie = &http.Cookie{
Name: manager.config.CookieName,
Value: url.QueryEscape(sid),
Path: "/",
HttpOnly: true,
Secure: manager.isSecure(r),
Domain: manager.config.Domain,
}
if manager.config.CookieLifeTime > 0 {
cookie.MaxAge = manager.config.CookieLifeTime
cookie.Expires = time.Now().Add(time.Duration(manager.config.CookieLifeTime) * time.Second)
}
if manager.config.EnableSetCookie {
http.SetCookie(w, cookie)
}
r.AddCookie(cookie)
return "", errs
}
sid := r.FormValue(manager.config.CookieName)
return sid, nil
}
// HTTP Request contains cookie for sessionid info.
return url.QueryUnescape(cookie.Value)
}
// Start session. generate or read the session id from http request.
// if session id exists, return SessionStore with this id.
func (manager *Manager) SessionStart(w http.ResponseWriter, r *http.Request) (session SessionStore, err error) {
sid, errs := manager.getSid(r)
if errs != nil {
return nil, errs
}
if sid != "" && manager.provider.SessionExist(sid) {
return manager.provider.SessionRead(sid)
}
// Generate a new session
sid, errs = manager.sessionId(r)
if errs != nil {
return nil, errs
}
session, err = manager.provider.SessionRead(sid)
cookie := &http.Cookie{
Name: manager.config.CookieName,
Value: url.QueryEscape(sid),
Path: "/",
HttpOnly: true,
Secure: manager.isSecure(r),
Domain: manager.config.Domain,
}
if manager.config.CookieLifeTime > 0 {
cookie.MaxAge = manager.config.CookieLifeTime
cookie.Expires = time.Now().Add(time.Duration(manager.config.CookieLifeTime) * time.Second)
}
if manager.config.EnableSetCookie {
http.SetCookie(w, cookie)
}
r.AddCookie(cookie)
return
}