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forgejo/modules/setting/cache.go
zeripath 30f7ddb833
Ensure memcache TTL cannot be over 30 days (#14592)
Memcached TTL cannot be > 30 days and if it is attempted the TTL is interpreted as
a unix timestamp.

This PR ensures that the TTL is switched to a unix timestamp in those cases.

Fix #14571

Signed-off-by: Andrew Thornton <art27@cantab.net>
2021-02-09 22:29:03 +00:00

106 lines
2.6 KiB
Go

// Copyright 2019 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package setting
import (
"strings"
"time"
"code.gitea.io/gitea/modules/log"
)
// Cache represents cache settings
type Cache struct {
Enabled bool
Adapter string
Interval int
Conn string
TTL time.Duration `ini:"ITEM_TTL"`
}
var (
// CacheService the global cache
CacheService = struct {
Cache `ini:"cache"`
LastCommit struct {
Enabled bool
TTL time.Duration `ini:"ITEM_TTL"`
CommitsCount int64
} `ini:"cache.last_commit"`
}{
Cache: Cache{
Enabled: true,
Adapter: "memory",
Interval: 60,
TTL: 16 * time.Hour,
},
LastCommit: struct {
Enabled bool
TTL time.Duration `ini:"ITEM_TTL"`
CommitsCount int64
}{
Enabled: true,
TTL: 8760 * time.Hour,
CommitsCount: 1000,
},
}
)
// MemcacheMaxTTL represents the maximum memcache TTL
const MemcacheMaxTTL = 30 * 24 * time.Hour
func newCacheService() {
sec := Cfg.Section("cache")
if err := sec.MapTo(&CacheService); err != nil {
log.Fatal("Failed to map Cache settings: %v", err)
}
CacheService.Adapter = sec.Key("ADAPTER").In("memory", []string{"memory", "redis", "memcache"})
switch CacheService.Adapter {
case "memory":
case "redis", "memcache":
CacheService.Conn = strings.Trim(sec.Key("HOST").String(), "\" ")
case "": // disable cache
CacheService.Enabled = false
default:
log.Fatal("Unknown cache adapter: %s", CacheService.Adapter)
}
if CacheService.Enabled {
log.Info("Cache Service Enabled")
} else {
log.Warn("Cache Service Disabled so that captcha disabled too")
// captcha depends on cache service
Service.EnableCaptcha = false
}
sec = Cfg.Section("cache.last_commit")
if !CacheService.Enabled {
CacheService.LastCommit.Enabled = false
}
CacheService.LastCommit.CommitsCount = sec.Key("COMMITS_COUNT").MustInt64(1000)
if CacheService.LastCommit.Enabled {
log.Info("Last Commit Cache Service Enabled")
}
}
// TTLSeconds returns the TTLSeconds or unix timestamp for memcache
func (c Cache) TTLSeconds() int64 {
if c.Adapter == "memcache" && c.TTL > MemcacheMaxTTL {
return time.Now().Add(c.TTL).Unix()
}
return int64(c.TTL.Seconds())
}
// LastCommitCacheTTLSeconds returns the TTLSeconds or unix timestamp for memcache
func LastCommitCacheTTLSeconds() int64 {
if CacheService.Adapter == "memcache" && CacheService.LastCommit.TTL > MemcacheMaxTTL {
return time.Now().Add(CacheService.LastCommit.TTL).Unix()
}
return int64(CacheService.LastCommit.TTL.Seconds())
}