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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| package flaghandlerservice | ||
|
|
||
| import ( | ||
| "context" | ||
| "log" | ||
| "time" | ||
|
|
||
| "github.com/jasonlvhit/gocron" | ||
| "github.com/sdslabs/katana/configs" | ||
| "github.com/sdslabs/katana/lib/mongo" | ||
| "github.com/sdslabs/katana/types" | ||
| "go.mongodb.org/mongo-driver/bson" | ||
| ) | ||
|
|
||
| func ticker() { | ||
| gocron.Every(uint64(configs.FlagConfig.TickPeriod)).Second().Do(handler) | ||
| <-gocron.Start() | ||
| // gocron.Every(uint64(configs.FlagConfig.TickPeriod)).Second().Do(flaggetter) todo:trigger setter here | ||
| // <-gocron.Start() | ||
| } | ||
|
|
||
| func handler() { | ||
| challenges := mongo.FetchDocs(context.Background(), mongo.ChallengesCollection, bson.M{}) | ||
| for _, challenge := range challenges { | ||
| go flagUpdater(challenge) | ||
| } | ||
| } | ||
|
|
||
| func flagUpdater(challenge bson.M) { | ||
| flagValue := String(int(configs.FlagConfig.FlagLength)) | ||
| var challengeStruct types.Challenge | ||
| challengeBytes, _ := bson.Marshal(challenge) | ||
| bson.Unmarshal(challengeBytes, challengeStruct) | ||
| var flag = &types.Flag{} | ||
| flag.Value = flagValue | ||
| flag.TeamID = challengeStruct.TeamID | ||
| flag.ChallengeID = challengeStruct.ID | ||
| flag.CreatedAt = time.Now() | ||
| if _, err := mongo.InsertOne(context.Background(), mongo.FlagsCollection, flag); err != nil { | ||
| log.Println(err) | ||
| } else { | ||
| log.Println("Trigger setter") | ||
| //todo : trigger flag setter here | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| package flaghandlerservice | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "crypto/rand" | ||
| "encoding/binary" | ||
| ) | ||
|
|
||
| func Bytes(n int) []byte { | ||
| b := make([]byte, n) | ||
| _, err := rand.Read(b) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| return b | ||
| } | ||
|
|
||
| var defLetters = []rune("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ") | ||
|
|
||
| func String(n int, letters ...string) string { | ||
| var letterRunes []rune | ||
| if len(letters) == 0 { | ||
| letterRunes = defLetters | ||
| } else { | ||
| letterRunes = []rune(letters[0]) | ||
| } | ||
|
|
||
| var bb bytes.Buffer | ||
| bb.Grow(n) | ||
| l := uint32(len(letterRunes)) | ||
| // on each loop, generate one random rune and append to output | ||
| for i := 0; i < n; i++ { | ||
| bb.WriteRune(letterRunes[binary.BigEndian.Uint32(Bytes(4))%l]) | ||
| } | ||
| return bb.String() | ||
| } |