mirror of
https://github.com/go-gitea/gitea.git
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* Some changes to fix recovery * Move Recovery to middlewares * Remove trace code * Fix lint * add session middleware and remove dependent on macaron for sso * Fix panic 500 page rendering * Fix bugs * Fix fmt * Fix vendor * recover unnecessary change * Fix lint and addd some comments about the copied codes. * Use util.StatDir instead of com.StatDir Co-authored-by: 6543 <6543@obermui.de>
202 lines
4.9 KiB
Go
Vendored
202 lines
4.9 KiB
Go
Vendored
// Copyright 2013 Beego Authors
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// Copyright 2014 The Macaron Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"): you may
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// not use this file except in compliance with the License. You may obtain
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// a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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package session
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import (
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"database/sql"
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"fmt"
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"log"
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"sync"
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"time"
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"gitea.com/go-chi/session"
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_ "github.com/go-sql-driver/mysql"
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)
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// MysqlStore represents a mysql session store implementation.
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type MysqlStore struct {
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c *sql.DB
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sid string
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lock sync.RWMutex
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data map[interface{}]interface{}
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}
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// NewMysqlStore creates and returns a mysql session store.
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func NewMysqlStore(c *sql.DB, sid string, kv map[interface{}]interface{}) *MysqlStore {
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return &MysqlStore{
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c: c,
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sid: sid,
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data: kv,
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}
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}
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// Set sets value to given key in session.
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func (s *MysqlStore) Set(key, val interface{}) error {
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s.lock.Lock()
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defer s.lock.Unlock()
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s.data[key] = val
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return nil
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}
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// Get gets value by given key in session.
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func (s *MysqlStore) Get(key interface{}) interface{} {
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s.lock.RLock()
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defer s.lock.RUnlock()
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return s.data[key]
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}
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// Delete delete a key from session.
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func (s *MysqlStore) Delete(key interface{}) error {
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s.lock.Lock()
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defer s.lock.Unlock()
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delete(s.data, key)
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return nil
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}
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// ID returns current session ID.
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func (s *MysqlStore) ID() string {
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return s.sid
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}
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// Release releases resource and save data to provider.
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func (s *MysqlStore) Release() error {
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// Skip encoding if the data is empty
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if len(s.data) == 0 {
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return nil
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}
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data, err := session.EncodeGob(s.data)
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if err != nil {
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return err
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}
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_, err = s.c.Exec("UPDATE session SET data=?, expiry=? WHERE `key`=?",
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data, time.Now().Unix(), s.sid)
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return err
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}
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// Flush deletes all session data.
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func (s *MysqlStore) Flush() error {
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s.lock.Lock()
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defer s.lock.Unlock()
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s.data = make(map[interface{}]interface{})
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return nil
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}
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// MysqlProvider represents a mysql session provider implementation.
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type MysqlProvider struct {
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c *sql.DB
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expire int64
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}
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// Init initializes mysql session provider.
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// connStr: username:password@protocol(address)/dbname?param=value
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func (p *MysqlProvider) Init(expire int64, connStr string) (err error) {
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p.expire = expire
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p.c, err = sql.Open("mysql", connStr)
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if err != nil {
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return err
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}
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return p.c.Ping()
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}
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// Read returns raw session store by session ID.
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func (p *MysqlProvider) Read(sid string) (session.RawStore, error) {
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now := time.Now().Unix()
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var data []byte
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expiry := now
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err := p.c.QueryRow("SELECT data, expiry FROM session WHERE `key`=?", sid).Scan(&data, &expiry)
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if err == sql.ErrNoRows {
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_, err = p.c.Exec("INSERT INTO session(`key`,data,expiry) VALUES(?,?,?)",
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sid, "", now)
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}
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if err != nil {
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return nil, err
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}
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var kv map[interface{}]interface{}
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if len(data) == 0 || expiry+p.expire <= now {
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kv = make(map[interface{}]interface{})
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} else {
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kv, err = session.DecodeGob(data)
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if err != nil {
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return nil, err
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}
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}
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return NewMysqlStore(p.c, sid, kv), nil
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}
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// Exist returns true if session with given ID exists.
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func (p *MysqlProvider) Exist(sid string) bool {
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var data []byte
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err := p.c.QueryRow("SELECT data FROM session WHERE `key`=?", sid).Scan(&data)
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if err != nil && err != sql.ErrNoRows {
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panic("session/mysql: error checking existence: " + err.Error())
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}
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return err != sql.ErrNoRows
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}
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// Destroy deletes a session by session ID.
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func (p *MysqlProvider) Destroy(sid string) error {
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_, err := p.c.Exec("DELETE FROM session WHERE `key`=?", sid)
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return err
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}
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// Regenerate regenerates a session store from old session ID to new one.
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func (p *MysqlProvider) Regenerate(oldsid, sid string) (_ session.RawStore, err error) {
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if p.Exist(sid) {
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return nil, fmt.Errorf("new sid '%s' already exists", sid)
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}
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if !p.Exist(oldsid) {
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if _, err = p.c.Exec("INSERT INTO session(`key`,data,expiry) VALUES(?,?,?)",
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oldsid, "", time.Now().Unix()); err != nil {
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return nil, err
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}
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}
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if _, err = p.c.Exec("UPDATE session SET `key`=? WHERE `key`=?", sid, oldsid); err != nil {
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return nil, err
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}
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return p.Read(sid)
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}
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// Count counts and returns number of sessions.
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func (p *MysqlProvider) Count() (total int) {
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if err := p.c.QueryRow("SELECT COUNT(*) AS NUM FROM session").Scan(&total); err != nil {
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panic("session/mysql: error counting records: " + err.Error())
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}
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return total
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}
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// GC calls GC to clean expired sessions.
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func (p *MysqlProvider) GC() {
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if _, err := p.c.Exec("DELETE FROM session WHERE expiry + ? <= UNIX_TIMESTAMP(NOW())", p.expire); err != nil {
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log.Printf("session/mysql: error garbage collecting: %v", err)
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}
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}
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func init() {
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session.Register("mysql", &MysqlProvider{})
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}
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