forked from crowdsecurity/crowdsec
/
utils.go
772 lines (702 loc) · 20.6 KB
/
utils.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
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
package main
import (
"encoding/csv"
"encoding/json"
"fmt"
"io"
"math"
"net"
"net/http"
"os"
"strconv"
"strings"
"time"
"github.com/fatih/color"
dto "github.com/prometheus/client_model/go"
"github.com/prometheus/prom2json"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/texttheater/golang-levenshtein/levenshtein"
"gopkg.in/yaml.v2"
"github.com/asians-cloud/crowdsec/pkg/cwhub"
"github.com/asians-cloud/crowdsec/pkg/database"
"github.com/asians-cloud/crowdsec/pkg/types"
)
const MaxDistance = 7
func printHelp(cmd *cobra.Command) {
err := cmd.Help()
if err != nil {
log.Fatalf("unable to print help(): %s", err)
}
}
func inSlice(s string, slice []string) bool {
for _, str := range slice {
if s == str {
return true
}
}
return false
}
func indexOf(s string, slice []string) int {
for i, elem := range slice {
if s == elem {
return i
}
}
return -1
}
func LoadHub() error {
if err := csConfig.LoadHub(); err != nil {
log.Fatal(err)
}
if csConfig.Hub == nil {
return fmt.Errorf("unable to load hub")
}
if err := cwhub.SetHubBranch(); err != nil {
log.Warningf("unable to set hub branch (%s), default to master", err)
}
if err := cwhub.GetHubIdx(csConfig.Hub); err != nil {
return fmt.Errorf("Failed to get Hub index : '%w'. Run 'sudo cscli hub update' to get the hub index", err)
}
return nil
}
func Suggest(itemType string, baseItem string, suggestItem string, score int, ignoreErr bool) {
errMsg := ""
if score < MaxDistance {
errMsg = fmt.Sprintf("unable to find %s '%s', did you mean %s ?", itemType, baseItem, suggestItem)
} else {
errMsg = fmt.Sprintf("unable to find %s '%s'", itemType, baseItem)
}
if ignoreErr {
log.Error(errMsg)
} else {
log.Fatalf(errMsg)
}
}
func GetDistance(itemType string, itemName string) (*cwhub.Item, int) {
allItems := make([]string, 0)
nearestScore := 100
nearestItem := &cwhub.Item{}
hubItems := cwhub.GetHubStatusForItemType(itemType, "", true)
for _, item := range hubItems {
allItems = append(allItems, item.Name)
}
for _, s := range allItems {
d := levenshtein.DistanceForStrings([]rune(itemName), []rune(s), levenshtein.DefaultOptions)
if d < nearestScore {
nearestScore = d
nearestItem = cwhub.GetItem(itemType, s)
}
}
return nearestItem, nearestScore
}
func compAllItems(itemType string, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
if err := LoadHub(); err != nil {
return nil, cobra.ShellCompDirectiveDefault
}
comp := make([]string, 0)
hubItems := cwhub.GetHubStatusForItemType(itemType, "", true)
for _, item := range hubItems {
if !inSlice(item.Name, args) && strings.Contains(item.Name, toComplete) {
comp = append(comp, item.Name)
}
}
cobra.CompDebugln(fmt.Sprintf("%s: %+v", itemType, comp), true)
return comp, cobra.ShellCompDirectiveNoFileComp
}
func compInstalledItems(itemType string, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
if err := LoadHub(); err != nil {
return nil, cobra.ShellCompDirectiveDefault
}
var items []string
var err error
switch itemType {
case cwhub.PARSERS:
items, err = cwhub.GetInstalledParsersAsString()
case cwhub.SCENARIOS:
items, err = cwhub.GetInstalledScenariosAsString()
case cwhub.PARSERS_OVFLW:
items, err = cwhub.GetInstalledPostOverflowsAsString()
case cwhub.COLLECTIONS:
items, err = cwhub.GetInstalledCollectionsAsString()
default:
return nil, cobra.ShellCompDirectiveDefault
}
if err != nil {
cobra.CompDebugln(fmt.Sprintf("list installed %s err: %s", itemType, err), true)
return nil, cobra.ShellCompDirectiveDefault
}
comp := make([]string, 0)
if toComplete != "" {
for _, item := range items {
if strings.Contains(item, toComplete) {
comp = append(comp, item)
}
}
} else {
comp = items
}
cobra.CompDebugln(fmt.Sprintf("%s: %+v", itemType, comp), true)
return comp, cobra.ShellCompDirectiveNoFileComp
}
func ListItems(out io.Writer, itemTypes []string, args []string, showType bool, showHeader bool, all bool) {
var hubStatusByItemType = make(map[string][]cwhub.ItemHubStatus)
for _, itemType := range itemTypes {
itemName := ""
if len(args) == 1 {
itemName = args[0]
}
hubStatusByItemType[itemType] = cwhub.GetHubStatusForItemType(itemType, itemName, all)
}
if csConfig.Cscli.Output == "human" {
for _, itemType := range itemTypes {
var statuses []cwhub.ItemHubStatus
var ok bool
if statuses, ok = hubStatusByItemType[itemType]; !ok {
log.Errorf("unknown item type: %s", itemType)
continue
}
listHubItemTable(out, "\n"+strings.ToUpper(itemType), statuses)
}
} else if csConfig.Cscli.Output == "json" {
x, err := json.MarshalIndent(hubStatusByItemType, "", " ")
if err != nil {
log.Fatalf("failed to unmarshal")
}
out.Write(x)
} else if csConfig.Cscli.Output == "raw" {
csvwriter := csv.NewWriter(out)
if showHeader {
header := []string{"name", "status", "version", "description"}
if showType {
header = append(header, "type")
}
err := csvwriter.Write(header)
if err != nil {
log.Fatalf("failed to write header: %s", err)
}
}
for _, itemType := range itemTypes {
var statuses []cwhub.ItemHubStatus
var ok bool
if statuses, ok = hubStatusByItemType[itemType]; !ok {
log.Errorf("unknown item type: %s", itemType)
continue
}
for _, status := range statuses {
if status.LocalVersion == "" {
status.LocalVersion = "n/a"
}
row := []string{
status.Name,
status.Status,
status.LocalVersion,
status.Description,
}
if showType {
row = append(row, itemType)
}
err := csvwriter.Write(row)
if err != nil {
log.Fatalf("failed to write raw output : %s", err)
}
}
}
csvwriter.Flush()
}
}
func InspectItem(name string, objecitemType string) {
hubItem := cwhub.GetItem(objecitemType, name)
if hubItem == nil {
log.Fatalf("unable to retrieve item.")
}
var b []byte
var err error
switch csConfig.Cscli.Output {
case "human", "raw":
b, err = yaml.Marshal(*hubItem)
if err != nil {
log.Fatalf("unable to marshal item : %s", err)
}
case "json":
b, err = json.MarshalIndent(*hubItem, "", " ")
if err != nil {
log.Fatalf("unable to marshal item : %s", err)
}
}
fmt.Printf("%s", string(b))
if csConfig.Cscli.Output == "json" || csConfig.Cscli.Output == "raw" {
return
}
if prometheusURL == "" {
//This is technically wrong to do this, as the prometheus section contains a listen address, not an URL to query prometheus
//But for ease of use, we will use the listen address as the prometheus URL because it will be 127.0.0.1 in the default case
listenAddr := csConfig.Prometheus.ListenAddr
if listenAddr == "" {
listenAddr = "127.0.0.1"
}
listenPort := csConfig.Prometheus.ListenPort
if listenPort == 0 {
listenPort = 6060
}
prometheusURL = fmt.Sprintf("http://%s:%d/metrics", listenAddr, listenPort)
log.Debugf("No prometheus URL provided using: %s", prometheusURL)
}
fmt.Printf("\nCurrent metrics : \n")
ShowMetrics(hubItem)
}
func manageCliDecisionAlerts(ip *string, ipRange *string, scope *string, value *string) error {
/*if a range is provided, change the scope*/
if *ipRange != "" {
_, _, err := net.ParseCIDR(*ipRange)
if err != nil {
return fmt.Errorf("%s isn't a valid range", *ipRange)
}
}
if *ip != "" {
ipRepr := net.ParseIP(*ip)
if ipRepr == nil {
return fmt.Errorf("%s isn't a valid ip", *ip)
}
}
//avoid confusion on scope (ip vs Ip and range vs Range)
switch strings.ToLower(*scope) {
case "ip":
*scope = types.Ip
case "range":
*scope = types.Range
case "country":
*scope = types.Country
case "as":
*scope = types.AS
}
return nil
}
func ShowMetrics(hubItem *cwhub.Item) {
switch hubItem.Type {
case cwhub.PARSERS:
metrics := GetParserMetric(prometheusURL, hubItem.Name)
parserMetricsTable(color.Output, hubItem.Name, metrics)
case cwhub.SCENARIOS:
metrics := GetScenarioMetric(prometheusURL, hubItem.Name)
scenarioMetricsTable(color.Output, hubItem.Name, metrics)
case cwhub.COLLECTIONS:
for _, item := range hubItem.Parsers {
metrics := GetParserMetric(prometheusURL, item)
parserMetricsTable(color.Output, item, metrics)
}
for _, item := range hubItem.Scenarios {
metrics := GetScenarioMetric(prometheusURL, item)
scenarioMetricsTable(color.Output, item, metrics)
}
for _, item := range hubItem.Collections {
hubItem = cwhub.GetItem(cwhub.COLLECTIONS, item)
if hubItem == nil {
log.Fatalf("unable to retrieve item '%s' from collection '%s'", item, hubItem.Name)
}
ShowMetrics(hubItem)
}
default:
log.Errorf("item of type '%s' is unknown", hubItem.Type)
}
}
// GetParserMetric is a complete rip from prom2json
func GetParserMetric(url string, itemName string) map[string]map[string]int {
stats := make(map[string]map[string]int)
result := GetPrometheusMetric(url)
for idx, fam := range result {
if !strings.HasPrefix(fam.Name, "cs_") {
continue
}
log.Tracef("round %d", idx)
for _, m := range fam.Metrics {
metric, ok := m.(prom2json.Metric)
if !ok {
log.Debugf("failed to convert metric to prom2json.Metric")
continue
}
name, ok := metric.Labels["name"]
if !ok {
log.Debugf("no name in Metric %v", metric.Labels)
}
if name != itemName {
continue
}
source, ok := metric.Labels["source"]
if !ok {
log.Debugf("no source in Metric %v", metric.Labels)
} else {
if srctype, ok := metric.Labels["type"]; ok {
source = srctype + ":" + source
}
}
value := m.(prom2json.Metric).Value
fval, err := strconv.ParseFloat(value, 32)
if err != nil {
log.Errorf("Unexpected int value %s : %s", value, err)
continue
}
ival := int(fval)
switch fam.Name {
case "cs_reader_hits_total":
if _, ok := stats[source]; !ok {
stats[source] = make(map[string]int)
stats[source]["parsed"] = 0
stats[source]["reads"] = 0
stats[source]["unparsed"] = 0
stats[source]["hits"] = 0
}
stats[source]["reads"] += ival
case "cs_parser_hits_ok_total":
if _, ok := stats[source]; !ok {
stats[source] = make(map[string]int)
}
stats[source]["parsed"] += ival
case "cs_parser_hits_ko_total":
if _, ok := stats[source]; !ok {
stats[source] = make(map[string]int)
}
stats[source]["unparsed"] += ival
case "cs_node_hits_total":
if _, ok := stats[source]; !ok {
stats[source] = make(map[string]int)
}
stats[source]["hits"] += ival
case "cs_node_hits_ok_total":
if _, ok := stats[source]; !ok {
stats[source] = make(map[string]int)
}
stats[source]["parsed"] += ival
case "cs_node_hits_ko_total":
if _, ok := stats[source]; !ok {
stats[source] = make(map[string]int)
}
stats[source]["unparsed"] += ival
default:
continue
}
}
}
return stats
}
func GetScenarioMetric(url string, itemName string) map[string]int {
stats := make(map[string]int)
stats["instantiation"] = 0
stats["curr_count"] = 0
stats["overflow"] = 0
stats["pour"] = 0
stats["underflow"] = 0
result := GetPrometheusMetric(url)
for idx, fam := range result {
if !strings.HasPrefix(fam.Name, "cs_") {
continue
}
log.Tracef("round %d", idx)
for _, m := range fam.Metrics {
metric, ok := m.(prom2json.Metric)
if !ok {
log.Debugf("failed to convert metric to prom2json.Metric")
continue
}
name, ok := metric.Labels["name"]
if !ok {
log.Debugf("no name in Metric %v", metric.Labels)
}
if name != itemName {
continue
}
value := m.(prom2json.Metric).Value
fval, err := strconv.ParseFloat(value, 32)
if err != nil {
log.Errorf("Unexpected int value %s : %s", value, err)
continue
}
ival := int(fval)
switch fam.Name {
case "cs_bucket_created_total":
stats["instantiation"] += ival
case "cs_buckets":
stats["curr_count"] += ival
case "cs_bucket_overflowed_total":
stats["overflow"] += ival
case "cs_bucket_poured_total":
stats["pour"] += ival
case "cs_bucket_underflowed_total":
stats["underflow"] += ival
default:
continue
}
}
}
return stats
}
// it's a rip of the cli version, but in silent-mode
func silenceInstallItem(name string, obtype string) (string, error) {
var item = cwhub.GetItem(obtype, name)
if item == nil {
return "", fmt.Errorf("error retrieving item")
}
it := *item
if downloadOnly && it.Downloaded && it.UpToDate {
return fmt.Sprintf("%s is already downloaded and up-to-date", it.Name), nil
}
it, err := cwhub.DownloadLatest(csConfig.Hub, it, forceAction, false)
if err != nil {
return "", fmt.Errorf("error while downloading %s : %v", it.Name, err)
}
if err := cwhub.AddItem(obtype, it); err != nil {
return "", err
}
if downloadOnly {
return fmt.Sprintf("Downloaded %s to %s", it.Name, csConfig.Cscli.HubDir+"/"+it.RemotePath), nil
}
it, err = cwhub.EnableItem(csConfig.Hub, it)
if err != nil {
return "", fmt.Errorf("error while enabling %s : %v", it.Name, err)
}
if err := cwhub.AddItem(obtype, it); err != nil {
return "", err
}
return fmt.Sprintf("Enabled %s", it.Name), nil
}
func GetPrometheusMetric(url string) []*prom2json.Family {
mfChan := make(chan *dto.MetricFamily, 1024)
// Start with the DefaultTransport for sane defaults.
transport := http.DefaultTransport.(*http.Transport).Clone()
// Conservatively disable HTTP keep-alives as this program will only
// ever need a single HTTP request.
transport.DisableKeepAlives = true
// Timeout early if the server doesn't even return the headers.
transport.ResponseHeaderTimeout = time.Minute
go func() {
defer types.CatchPanic("crowdsec/GetPrometheusMetric")
err := prom2json.FetchMetricFamilies(url, mfChan, transport)
if err != nil {
log.Fatalf("failed to fetch prometheus metrics : %v", err)
}
}()
result := []*prom2json.Family{}
for mf := range mfChan {
result = append(result, prom2json.NewFamily(mf))
}
log.Debugf("Finished reading prometheus output, %d entries", len(result))
return result
}
func RestoreHub(dirPath string) error {
var err error
if err := csConfig.LoadHub(); err != nil {
return err
}
if err := cwhub.SetHubBranch(); err != nil {
return fmt.Errorf("error while setting hub branch: %s", err)
}
for _, itype := range cwhub.ItemTypes {
itemDirectory := fmt.Sprintf("%s/%s/", dirPath, itype)
if _, err = os.Stat(itemDirectory); err != nil {
log.Infof("no %s in backup", itype)
continue
}
/*restore the upstream items*/
upstreamListFN := fmt.Sprintf("%s/upstream-%s.json", itemDirectory, itype)
file, err := os.ReadFile(upstreamListFN)
if err != nil {
return fmt.Errorf("error while opening %s : %s", upstreamListFN, err)
}
var upstreamList []string
err = json.Unmarshal(file, &upstreamList)
if err != nil {
return fmt.Errorf("error unmarshaling %s : %s", upstreamListFN, err)
}
for _, toinstall := range upstreamList {
label, err := silenceInstallItem(toinstall, itype)
if err != nil {
log.Errorf("Error while installing %s : %s", toinstall, err)
} else if label != "" {
log.Infof("Installed %s : %s", toinstall, label)
} else {
log.Printf("Installed %s : ok", toinstall)
}
}
/*restore the local and tainted items*/
files, err := os.ReadDir(itemDirectory)
if err != nil {
return fmt.Errorf("failed enumerating files of %s : %s", itemDirectory, err)
}
for _, file := range files {
//this was the upstream data
if file.Name() == fmt.Sprintf("upstream-%s.json", itype) {
continue
}
if itype == cwhub.PARSERS || itype == cwhub.PARSERS_OVFLW {
//we expect a stage here
if !file.IsDir() {
continue
}
stage := file.Name()
stagedir := fmt.Sprintf("%s/%s/%s/", csConfig.ConfigPaths.ConfigDir, itype, stage)
log.Debugf("Found stage %s in %s, target directory : %s", stage, itype, stagedir)
if err = os.MkdirAll(stagedir, os.ModePerm); err != nil {
return fmt.Errorf("error while creating stage directory %s : %s", stagedir, err)
}
/*find items*/
ifiles, err := os.ReadDir(itemDirectory + "/" + stage + "/")
if err != nil {
return fmt.Errorf("failed enumerating files of %s : %s", itemDirectory+"/"+stage, err)
}
//finally copy item
for _, tfile := range ifiles {
log.Infof("Going to restore local/tainted [%s]", tfile.Name())
sourceFile := fmt.Sprintf("%s/%s/%s", itemDirectory, stage, tfile.Name())
destinationFile := fmt.Sprintf("%s%s", stagedir, tfile.Name())
if err = types.CopyFile(sourceFile, destinationFile); err != nil {
return fmt.Errorf("failed copy %s %s to %s : %s", itype, sourceFile, destinationFile, err)
}
log.Infof("restored %s to %s", sourceFile, destinationFile)
}
} else {
log.Infof("Going to restore local/tainted [%s]", file.Name())
sourceFile := fmt.Sprintf("%s/%s", itemDirectory, file.Name())
destinationFile := fmt.Sprintf("%s/%s/%s", csConfig.ConfigPaths.ConfigDir, itype, file.Name())
if err = types.CopyFile(sourceFile, destinationFile); err != nil {
return fmt.Errorf("failed copy %s %s to %s : %s", itype, sourceFile, destinationFile, err)
}
log.Infof("restored %s to %s", sourceFile, destinationFile)
}
}
}
return nil
}
func BackupHub(dirPath string) error {
var err error
var itemDirectory string
var upstreamParsers []string
for _, itemType := range cwhub.ItemTypes {
clog := log.WithFields(log.Fields{
"type": itemType,
})
itemMap := cwhub.GetItemMap(itemType)
if itemMap == nil {
clog.Infof("No %s to backup.", itemType)
continue
}
itemDirectory = fmt.Sprintf("%s/%s/", dirPath, itemType)
if err := os.MkdirAll(itemDirectory, os.ModePerm); err != nil {
return fmt.Errorf("error while creating %s : %s", itemDirectory, err)
}
upstreamParsers = []string{}
for k, v := range itemMap {
clog = clog.WithFields(log.Fields{
"file": v.Name,
})
if !v.Installed { //only backup installed ones
clog.Debugf("[%s] : not installed", k)
continue
}
//for the local/tainted ones, we backup the full file
if v.Tainted || v.Local || !v.UpToDate {
//we need to backup stages for parsers
if itemType == cwhub.PARSERS || itemType == cwhub.PARSERS_OVFLW {
fstagedir := fmt.Sprintf("%s%s", itemDirectory, v.Stage)
if err := os.MkdirAll(fstagedir, os.ModePerm); err != nil {
return fmt.Errorf("error while creating stage dir %s : %s", fstagedir, err)
}
}
clog.Debugf("[%s] : backuping file (tainted:%t local:%t up-to-date:%t)", k, v.Tainted, v.Local, v.UpToDate)
tfile := fmt.Sprintf("%s%s/%s", itemDirectory, v.Stage, v.FileName)
if err = types.CopyFile(v.LocalPath, tfile); err != nil {
return fmt.Errorf("failed copy %s %s to %s : %s", itemType, v.LocalPath, tfile, err)
}
clog.Infof("local/tainted saved %s to %s", v.LocalPath, tfile)
continue
}
clog.Debugf("[%s] : from hub, just backup name (up-to-date:%t)", k, v.UpToDate)
clog.Infof("saving, version:%s, up-to-date:%t", v.Version, v.UpToDate)
upstreamParsers = append(upstreamParsers, v.Name)
}
//write the upstream items
upstreamParsersFname := fmt.Sprintf("%s/upstream-%s.json", itemDirectory, itemType)
upstreamParsersContent, err := json.MarshalIndent(upstreamParsers, "", " ")
if err != nil {
return fmt.Errorf("failed marshaling upstream parsers : %s", err)
}
err = os.WriteFile(upstreamParsersFname, upstreamParsersContent, 0644)
if err != nil {
return fmt.Errorf("unable to write to %s %s : %s", itemType, upstreamParsersFname, err)
}
clog.Infof("Wrote %d entries for %s to %s", len(upstreamParsers), itemType, upstreamParsersFname)
}
return nil
}
type unit struct {
value int64
symbol string
}
var ranges = []unit{
{
value: 1e18,
symbol: "E",
},
{
value: 1e15,
symbol: "P",
},
{
value: 1e12,
symbol: "T",
},
{
value: 1e6,
symbol: "M",
},
{
value: 1e3,
symbol: "k",
},
{
value: 1,
symbol: "",
},
}
func formatNumber(num int) string {
goodUnit := unit{}
for _, u := range ranges {
if int64(num) >= u.value {
goodUnit = u
break
}
}
if goodUnit.value == 1 {
return fmt.Sprintf("%d%s", num, goodUnit.symbol)
}
res := math.Round(float64(num)/float64(goodUnit.value)*100) / 100
return fmt.Sprintf("%.2f%s", res, goodUnit.symbol)
}
func getDBClient() (*database.Client, error) {
var err error
if err := csConfig.LoadAPIServer(); err != nil || csConfig.DisableAPI {
return nil, err
}
ret, err := database.NewClient(csConfig.DbConfig)
if err != nil {
return nil, err
}
return ret, nil
}
func removeFromSlice(val string, slice []string) []string {
var i int
var value string
valueFound := false
// get the index
for i, value = range slice {
if value == val {
valueFound = true
break
}
}
if valueFound {
slice[i] = slice[len(slice)-1]
slice[len(slice)-1] = ""
slice = slice[:len(slice)-1]
}
return slice
}