mirror of
https://github.com/go-gitea/gitea.git
synced 2024-12-05 09:03:48 +08:00
88f835192d
Result of running `perl -p -i -e 's#interface\{\}#any#g' **/*` and `make fmt`.
Basically the same [as golang did](2580d0e08d
).
228 lines
5.6 KiB
Go
228 lines
5.6 KiB
Go
// Copyright 2013 Beego Authors
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// Copyright 2014 The Macaron Authors
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// Copyright 2020 The Gitea Authors. All rights reserved.
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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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// SPDX-License-Identifier: Apache-2.0
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package session
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import (
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"fmt"
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"sync"
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"time"
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"code.gitea.io/gitea/modules/graceful"
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"code.gitea.io/gitea/modules/nosql"
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"gitea.com/go-chi/session"
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"github.com/redis/go-redis/v9"
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)
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// RedisStore represents a redis session store implementation.
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type RedisStore struct {
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c redis.UniversalClient
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prefix, sid string
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duration time.Duration
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lock sync.RWMutex
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data map[any]any
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}
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// NewRedisStore creates and returns a redis session store.
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func NewRedisStore(c redis.UniversalClient, prefix, sid string, dur time.Duration, kv map[any]any) *RedisStore {
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return &RedisStore{
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c: c,
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prefix: prefix,
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sid: sid,
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duration: dur,
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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 *RedisStore) Set(key, val any) 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 *RedisStore) Get(key any) any {
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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 *RedisStore) Delete(key any) 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 *RedisStore) 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 *RedisStore) 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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return s.c.Set(graceful.GetManager().HammerContext(), s.prefix+s.sid, string(data), s.duration).Err()
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}
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// Flush deletes all session data.
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func (s *RedisStore) 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[any]any)
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return nil
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}
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// RedisProvider represents a redis session provider implementation.
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type RedisProvider struct {
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c redis.UniversalClient
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duration time.Duration
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prefix string
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}
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// Init initializes redis session provider.
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// configs: network=tcp,addr=:6379,password=macaron,db=0,pool_size=100,idle_timeout=180,prefix=session;
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func (p *RedisProvider) Init(maxlifetime int64, configs string) (err error) {
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p.duration, err = time.ParseDuration(fmt.Sprintf("%ds", maxlifetime))
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if err != nil {
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return err
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}
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uri := nosql.ToRedisURI(configs)
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for k, v := range uri.Query() {
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switch k {
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case "prefix":
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p.prefix = v[0]
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}
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}
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p.c = nosql.GetManager().GetRedisClient(uri.String())
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return p.c.Ping(graceful.GetManager().ShutdownContext()).Err()
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}
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// Read returns raw session store by session ID.
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func (p *RedisProvider) Read(sid string) (session.RawStore, error) {
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psid := p.prefix + sid
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if !p.Exist(sid) {
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if err := p.c.Set(graceful.GetManager().HammerContext(), psid, "", p.duration).Err(); err != nil {
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return nil, err
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}
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}
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var kv map[any]any
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kvs, err := p.c.Get(graceful.GetManager().HammerContext(), psid).Result()
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if err != nil {
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return nil, err
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}
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if len(kvs) == 0 {
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kv = make(map[any]any)
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} else {
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kv, err = session.DecodeGob([]byte(kvs))
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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 NewRedisStore(p.c, p.prefix, sid, p.duration, 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 *RedisProvider) Exist(sid string) bool {
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v, err := p.c.Exists(graceful.GetManager().HammerContext(), p.prefix+sid).Result()
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return err == nil && v == 1
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}
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// Destroy deletes a session by session ID.
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func (p *RedisProvider) Destroy(sid string) error {
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return p.c.Del(graceful.GetManager().HammerContext(), p.prefix+sid).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 *RedisProvider) Regenerate(oldsid, sid string) (_ session.RawStore, err error) {
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poldsid := p.prefix + oldsid
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psid := p.prefix + sid
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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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} else if !p.Exist(oldsid) {
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// Make a fake old session.
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if err = p.c.Set(graceful.GetManager().HammerContext(), poldsid, "", p.duration).Err(); err != nil {
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return nil, err
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}
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}
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// do not use Rename here, because the old sid and new sid may be in different redis cluster slot.
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kvs, err := p.c.Get(graceful.GetManager().HammerContext(), poldsid).Result()
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if err != nil {
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return nil, err
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}
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if err = p.c.Del(graceful.GetManager().HammerContext(), poldsid).Err(); err != nil {
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return nil, err
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}
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if err = p.c.Set(graceful.GetManager().HammerContext(), psid, kvs, p.duration).Err(); err != nil {
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return nil, err
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}
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var kv map[any]any
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if len(kvs) == 0 {
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kv = make(map[any]any)
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} else {
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kv, err = session.DecodeGob([]byte(kvs))
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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 NewRedisStore(p.c, p.prefix, sid, p.duration, kv), nil
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}
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// Count counts and returns number of sessions.
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func (p *RedisProvider) Count() int {
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size, err := p.c.DBSize(graceful.GetManager().HammerContext()).Result()
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if err != nil {
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return 0
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}
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return int(size)
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}
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// GC calls GC to clean expired sessions.
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func (*RedisProvider) GC() {}
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func init() {
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session.Register("redis", &RedisProvider{})
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}
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