summaryrefslogtreecommitdiffstats
path: root/lib/syncthing/folder-st.go
blob: 7e1fe55a406bcd51eecc0f57c20d65f892d21f33 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
package st

import (
	"fmt"
	"os"
	"path/filepath"
	"strings"

	"github.com/iotbzh/xds-server/lib/folder"
	"github.com/iotbzh/xds-server/lib/xdsconfig"
	uuid "github.com/satori/go.uuid"
	"github.com/syncthing/syncthing/lib/config"
)

// IFOLDER interface implementation for syncthing

// STFolder .
type STFolder struct {
	globalConfig      *xdsconfig.Config
	st                *SyncThing
	fConfig           folder.FolderConfig
	stfConfig         config.FolderConfiguration
	eventIDs          []int
	eventChangeCB     *folder.EventCB
	eventChangeCBData *folder.EventCBData
}

// NewFolderST Create a new instance of STFolder
func (s *SyncThing) NewFolderST(gc *xdsconfig.Config) *STFolder {
	return &STFolder{
		globalConfig: gc,
		st:           s,
	}
}

// NewUID Get a UUID
func (f *STFolder) NewUID(suffix string) string {
	i := len(f.st.MyID)
	if i > 15 {
		i = 15
	}
	return uuid.NewV1().String()[:14] + f.st.MyID[:i] + "_" + suffix
}

// Add a new folder
func (f *STFolder) Add(cfg folder.FolderConfig) (*folder.FolderConfig, error) {

	// Sanity check
	if cfg.DataCloudSync.SyncThingID == "" {
		return nil, fmt.Errorf("device id not set (SyncThingID field)")
	}

	// rootPath should not be empty
	if cfg.RootPath == "" {
		cfg.RootPath = f.globalConfig.FileConf.ShareRootDir
	}

	f.fConfig = cfg

	f.fConfig.DataCloudSync.BuilderSThgID = f.st.MyID // FIXME - should be removed after local ST config rework

	// Update Syncthing folder
	// (expect if status is ErrorConfig)
	// TODO: add cache to avoid multiple requests on startup
	if f.fConfig.Status != folder.StatusErrorConfig {
		id, err := f.st.FolderChange(f.fConfig)
		if err != nil {
			return nil, err
		}

		f.stfConfig, err = f.st.FolderConfigGet(id)
		if err != nil {
			f.fConfig.Status = folder.StatusErrorConfig
			return nil, err
		}

		// Register to events to update folder status
		for _, evName := range []string{EventStateChanged, EventFolderPaused} {
			evID, err := f.st.Events.Register(evName, f.cbEventState, id, nil)
			if err != nil {
				return nil, err
			}
			f.eventIDs = append(f.eventIDs, evID)
		}

		f.fConfig.IsInSync = false // will be updated later by events
		f.fConfig.Status = folder.StatusEnable
	}

	return &f.fConfig, nil
}

// GetConfig Get public part of folder config
func (f *STFolder) GetConfig() folder.FolderConfig {
	return f.fConfig
}

// GetFullPath returns the full path of a directory (from server POV)
func (f *STFolder) GetFullPath(dir string) string {
	if &dir == nil {
		dir = ""
	}
	if filepath.IsAbs(dir) {
		return filepath.Join(f.fConfig.RootPath, dir)
	}
	return filepath.Join(f.fConfig.RootPath, f.fConfig.ClientPath, dir)
}

// ConvPathCli2Svr Convert path from Client to Server
func (f *STFolder) ConvPathCli2Svr(s string) string {
	if f.fConfig.ClientPath != "" && f.fConfig.RootPath != "" {
		return strings.Replace(s,
			f.fConfig.ClientPath,
			f.fConfig.RootPath+"/"+f.fConfig.ClientPath,
			-1)
	}
	return s
}

// ConvPathSvr2Cli Convert path from Server to Client
func (f *STFolder) ConvPathSvr2Cli(s string) string {
	if f.fConfig.ClientPath != "" && f.fConfig.RootPath != "" {
		return strings.Replace(s,
			f.fConfig.RootPath+"/"+f.fConfig.ClientPath,
			f.fConfig.ClientPath,
			-1)
	}
	return s
}

// Remove a folder
func (f *STFolder) Remove() error {
	err := f.st.FolderDelete(f.stfConfig.ID)

	// Delete folder on server side
	err2 := os.RemoveAll(f.GetFullPath(""))

	if err != nil {
		return err
	}
	return err2
}

// RegisterEventChange requests registration for folder event change
func (f *STFolder) RegisterEventChange(cb *folder.EventCB, data *folder.EventCBData) error {
	f.eventChangeCB = cb
	f.eventChangeCBData = data
	return nil
}

// UnRegisterEventChange remove registered callback
func (f *STFolder) UnRegisterEventChange() error {
	f.eventChangeCB = nil
	f.eventChangeCBData = nil
	return nil
}

// Sync Force folder files synchronization
func (f *STFolder) Sync() error {
	return f.st.FolderScan(f.stfConfig.ID, "")
}

// IsInSync Check if folder files are in-sync
func (f *STFolder) IsInSync() (bool, error) {
	sts, err := f.st.IsFolderInSync(f.stfConfig.ID)
	if err != nil {
		return false, err
	}
	f.fConfig.IsInSync = sts
	return sts, nil
}

// callback use to update IsInSync status
func (f *STFolder) cbEventState(ev Event, data *EventsCBData) {
	prevSync := f.fConfig.IsInSync
	prevStatus := f.fConfig.Status

	switch ev.Type {

	case EventStateChanged:
		to := ev.Data["to"]
		switch to {
		case "scanning", "syncing":
			f.fConfig.Status = folder.StatusSyncing
		case "idle":
			f.fConfig.Status = folder.StatusEnable
		}
		f.fConfig.IsInSync = (to == "idle")

	case EventFolderPaused:
		if f.fConfig.Status == folder.StatusEnable {
			f.fConfig.Status = folder.StatusPause
		}
		f.fConfig.IsInSync = false
	}

	if f.eventChangeCB != nil &&
		(prevSync != f.fConfig.IsInSync || prevStatus != f.fConfig.Status) {
		cpConf := f.fConfig
		(*f.eventChangeCB)(&cpConf, f.eventChangeCBData)
	}
}