1. 1
2. 2
3. 3
4. 4
5. 5
6. 6
7. 7
8. 8
9. 9
10. 10
11. 11
12. 12
13. 13
14. 14
15. 15
16. 16
17. 17
18. 18
19. 19
20. 20
21. 21
22. 22
23. 23
24. 24
25. 25
26. 26
27. 27
28. 28
29. 29
30. 30
31. 31
32. 32
33. 33
34. 34
35. 35
36. 36
37. 37
38. 38
39. 39
40. 40
41. 41
42. 42
43. 43
44. 44
45. 45
46. 46
47. 47
48. 48
49. 49
50. 50
51. 51
52. 52
53. 53
54. 54
55. 55
56. 56
57. 57
58. 58
59. 59
60. 60
61. 61
62. 62
63. 63
64. 64
65. 65
66. 66
67. 67
68. 68
69. 69
70. 70
71. 71
72. 72
73. 73
74. 74
75. 75
76. 76
77. 77
78. 78
79. 79
80. 80
81. 81
82. 82
83. 83
84. 84
85. 85
86. 86
87. 87
88. 88
89. 89
90. 90
91. 91
92. 92
93. 93
94. 94
95. 95
96. 96
97. 97
98. 98
99. 99
100. 100
101. 101
102. 102
103. 103
104. 104
105. 105
106. 106
107. 107
108. 108
109. 109

// 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"`
}

// CacheService the global cache
var 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", "twoqueue"})
	switch CacheService.Adapter {
	case "memory":
	case "redis", "memcache":
		CacheService.Conn = strings.Trim(sec.Key("HOST").String(), "\" ")
	case "twoqueue":
		CacheService.Conn = strings.TrimSpace(sec.Key("HOST").String())
		if CacheService.Conn == "" {
			CacheService.Conn = "50000"
		}
	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())
}