-
Notifications
You must be signed in to change notification settings - Fork 1
/
daemon.go
377 lines (293 loc) · 10.7 KB
/
daemon.go
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
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
package daemon
import (
"encoding/json"
"errors"
"io/ioutil"
"log"
"net/http"
"os/exec"
"path/filepath"
"runtime"
"strings"
"time"
"fmt"
"github.com/Encrypt-S/kauri-api/app/conf"
"github.com/Encrypt-S/kauri-api/app/fs"
)
// OSInfo defines OS's
type OSInfo struct {
DaemonName string
OS string
}
// GitHubReleases holds release data
type GitHubReleases []struct {
GitHubReleaseData
}
// GitHubReleaseData defines release data avail
type GitHubReleaseData struct {
URL string `json:"url"`
AssetsURL string `json:"assets_url"`
UploadURL string `json:"upload_url"`
HTMLURL string `json:"html_url"`
ID int `json:"id"`
TagName string `json:"tag_name"`
TargetCommitish string `json:"target_commitish"`
Name string `json:"name"`
Draft bool `json:"draft"`
Author struct {
Login string `json:"login"`
ID int `json:"id"`
AvatarURL string `json:"avatar_url"`
GravatarID string `json:"gravatar_id"`
URL string `json:"url"`
HTMLURL string `json:"html_url"`
FollowersURL string `json:"followers_url"`
FollowingURL string `json:"following_url"`
GistsURL string `json:"gists_url"`
StarredURL string `json:"starred_url"`
SubscriptionsURL string `json:"subscriptions_url"`
OrganizationsURL string `json:"organizations_url"`
ReposURL string `json:"repos_url"`
EventsURL string `json:"events_url"`
ReceivedEventsURL string `json:"received_events_url"`
Type string `json:"type"`
SiteAdmin bool `json:"site_admin"`
} `json:"author"`
Prerelease bool `json:"prerelease"`
CreatedAt time.Time `json:"created_at"`
PublishedAt time.Time `json:"published_at"`
Assets []struct {
URL string `json:"url"`
ID int `json:"id"`
Name string `json:"name"`
Label interface{} `json:"label"`
Uploader struct {
Login string `json:"login"`
ID int `json:"id"`
AvatarURL string `json:"avatar_url"`
GravatarID string `json:"gravatar_id"`
URL string `json:"url"`
HTMLURL string `json:"html_url"`
FollowersURL string `json:"followers_url"`
FollowingURL string `json:"following_url"`
GistsURL string `json:"gists_url"`
StarredURL string `json:"starred_url"`
SubscriptionsURL string `json:"subscriptions_url"`
OrganizationsURL string `json:"organizations_url"`
ReposURL string `json:"repos_url"`
EventsURL string `json:"events_url"`
ReceivedEventsURL string `json:"received_events_url"`
Type string `json:"type"`
SiteAdmin bool `json:"site_admin"`
} `json:"uploader"`
ContentType string `json:"content_type"`
State string `json:"state"`
Size int `json:"size"`
DownloadCount int `json:"download_count"`
CreatedAt time.Time `json:"created_at"`
UpdatedAt time.Time `json:"updated_at"`
BrowserDownloadURL string `json:"browser_download_url"`
} `json:"assets"`
TarballURL string `json:"tarball_url"`
ZipballURL string `json:"zipball_url"`
Body string `json:"body"`
}
var runningDaemon *exec.Cmd
var minHeartbeat = 1000 // the lowest value the hb checker can be set to
var isGettingDaemon = false
// StartManager is a simple system that checks if the coin's daemon
// is alive. If not it tries to startCoinDaemons it with proper config
// It is called from the StartAllDaemonManagers function in managers pkg
func StartManager(coinData conf.CoinData) {
log.Println("starting manager for " + coinData.CurrencyCode + " daemon...")
// set the heartbeat interval but make sure it is not
// less than the min heartbeat setting
hbInterval := minHeartbeat
if coinData.DaemonHeartbeat > hbInterval {
hbInterval = coinData.DaemonHeartbeat
}
// kick off goroutine for DownloadAndStart
go func() {
cmd, err := DownloadAndStart(coinData)
if err != nil {
log.Println(err)
} else {
runningDaemon = cmd
}
}()
}
// returns false on error
//func isAlive(coinData conf.CoinData) bool {
//
// isLiving := true
//
// n := daemonrpc.RPCRequestData{}
// n.Method = "getblockcount"
//
// _, err := daemonrpc.RequestDaemon(coinData, n, conf.DaemonConf)
//
// if err != nil {
// isLiving = false
// }
//
// return isLiving
//
//}
// DownloadAndStart checks for current coin's daemon
// and either downloads it or starts it up if already detected
func DownloadAndStart(coinData conf.CoinData) (*exec.Cmd, error) {
path, err := CheckForDaemon(coinData)
// download daemon if not found
if err != nil {
downloadDaemons(coinData)
} else {
return startCoinDaemons(coinData, path), nil
}
// if found, just start it up
return startCoinDaemons(coinData, path), nil
}
// Stop kills the running daemon process
// func Stop(coinData conf.CoinData, cmd *exec.Cmd) {
// if err := cmd.Process.Kill(); err != nil {
// log.Fatal("Failed to terminate " + coinData.CurrencyCode + " daemon process" + err.Error())
// }
// }
// CheckForDaemon checks for current coin's daemon
// in appropriate path and reports back to DownLoadAndStartDaemons
func CheckForDaemon(coinData conf.CoinData) (string, error) {
// get the latest release version, equal to daemon version
releaseVersion := coinData.DaemonVersion
// get the apps current path
path, err := fs.GetCurrentPath()
if err != nil {
return "", err
}
// build the path for current daemon
path += "/lib/" + coinData.LibPath + "-" + releaseVersion + "/bin/" + getOSInfo(coinData).DaemonName
log.Println("Searching for " + coinData.CurrencyCode + " daemon at " + path)
// check that the current daemon exists
if !fs.Exists(path) {
return "", errors.New(coinData.CurrencyCode + " daemon not found")
}
log.Println(coinData.CurrencyCode + " daemon located for v" + releaseVersion)
return path, nil
}
// startCoinDaemons pulls in config for coin data, daemonPath,
// builds the command arguments, and executes start command
func startCoinDaemons(coinData conf.CoinData, daemonPath string) *exec.Cmd {
log.Println("Booting " + coinData.CurrencyCode + " daemon")
// build up the command flags from daemon config
rpcUser := fmt.Sprintf("-rpcuser=%s", conf.DaemonConf.RPCUser)
rpcPassword := fmt.Sprintf("-rpcpassword=%s", conf.DaemonConf.RPCPassword)
cmdStr := []string{rpcUser, rpcPassword}
if coinData.UseTestNet {
cmdStr = append(cmdStr, "-testnet")
}
if coinData.IndexTransactions {
cmdStr = append(cmdStr, "-addressindex=1")
}
fs.CreateDataDir(coinData.DataDir)
p, _ := fs.GetCurrentPath()
p += coinData.DataDir
s := fmt.Sprintf("-datadir=%s", p)
cmdStr = append(cmdStr, s)
// setup to index transactions (required for API functionality)
cmd := exec.Command(daemonPath, cmdStr...)
err := cmd.Start()
if err != nil {
log.Fatal("Failed to startCoinDaemons the " + coinData.CurrencyCode + "daemon: " + err.Error())
}
return cmd
}
// getOSInfo supplies current OS info and the Daemon name for said OS
func getOSInfo(coinData conf.CoinData) OSInfo {
osInfo := OSInfo{}
// TODO: put goosList and goarchList in a config to be loaded in via Viper
//const goosList = "android darwin dragonfly freebsd linux nacl netbsd openbsd plan9 solaris windows zos "
//const goarchList = "386 amd64 amd64p32 arm armbe arm64 arm64be ppc64 ppc64le mips mipsle mips64 mips64le mips64p32 mips64p32le ppc s390 s390x sparc sparc64"
// switch on arch then switch on OS
switch runtime.GOARCH {
case "amd64":
switch runtime.GOOS {
case "windows":
osInfo.DaemonName = coinData.WindowsDaemonName
osInfo.OS = "win64"
break
case "darwin":
osInfo.DaemonName = coinData.DarwinDaemonName
osInfo.OS = "osx64"
break
}
break
}
return osInfo
}
// downloadDaemons pieces together release info, path, name
// and passes that info to DownloadExtract function
func downloadDaemons(coinData conf.CoinData) {
releaseInfo, _ := getReleaseDataForVersion(coinData)
dlPath, dlName, _ := getDownloadPathAndName(coinData, releaseInfo)
log.Println("Attempting to get release data for NAVCoin v" + coinData.DaemonVersion)
isGettingDaemon = true // flag we are getting the daemon
fs.DownloadExtract(dlPath, dlName)
isGettingDaemon = false // flag we have finished
}
// getReleaseDataForVersion ranges through the releases and matches
// release TagName to the coin's DaemonVersion via gitHubReleaseInfo function
func getReleaseDataForVersion(coinData conf.CoinData) (GitHubReleaseData, error) {
log.Println("Attempting to get release data for NAVCoin v" + coinData.DaemonVersion)
releases, err := gitHubReleaseInfo(coinData.CurrencyCode, coinData.ReleaseAPI)
var e = GitHubReleaseData{}
for _, elem := range releases {
if elem.TagName == coinData.DaemonVersion {
log.Println("Release data found for NAVCoin v" + coinData.DaemonVersion)
e = elem.GitHubReleaseData
}
}
return e, err
}
// gitHubReleaseInfo takes the coin's ReleaseAPI and queries for data
func gitHubReleaseInfo(currencyCode string, releaseAPI string) (GitHubReleases, error) {
log.Println("Retrieving " + currencyCode + "Github release data from: " + releaseAPI)
response, err := http.Get(releaseAPI)
if err != nil {
log.Printf("The HTTP request failed with error %s\n", err)
return GitHubReleases{}, err
}
// read the data out to json
data, _ := ioutil.ReadAll(response.Body)
c := GitHubReleases{}
jsonErr := json.Unmarshal(data, &c)
if jsonErr != nil {
return GitHubReleases{}, jsonErr
}
return c, nil
}
// getDownloadPathAndName ranges through release assets
// and builds/returns downloadPath and downloadName
func getDownloadPathAndName(coinData conf.CoinData, gitHubReleaseData GitHubReleaseData) (string, string, error) {
log.Println("Getting download path/name for OS from " + coinData.CurrencyCode + " release assest data")
releaseInfo := gitHubReleaseData
downloadPath := ""
downloadName := ""
for e := range releaseInfo.Assets {
asset := releaseInfo.Assets[e]
if strings.Contains(asset.Name, getOSInfo(coinData).OS) {
// windows os check to provide zip package :: .zip
if strings.Contains(asset.Name, "win") {
if filepath.Ext(asset.Name) == ".zip" {
log.Println("win64 detected - preparing NAVCoin .zip download")
downloadPath = releaseInfo.Assets[e].BrowserDownloadURL
downloadName = releaseInfo.Assets[e].Name
}
}
// osx64 check to provide gzip package :: tar.gz
if strings.Contains(asset.Name, "osx64") {
log.Println("osx64 detected - preparing NAVCoin tar.gz download")
downloadPath = releaseInfo.Assets[e].BrowserDownloadURL
downloadName = releaseInfo.Assets[e].Name
}
}
}
return downloadPath, downloadName, nil
}