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Split backend service into checker and generator

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Both are linked through a unix socket.
This commit is contained in:
nemunaire 2023-07-10 09:17:02 +02:00
commit ed091e761c
34 changed files with 660 additions and 208 deletions
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53
backend/choices.go
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@ -1,53 +0,0 @@
package main
import (
"encoding/base64"
"encoding/binary"
"encoding/json"
"io/ioutil"
"log"
"math/rand"
"os"
"srs.epita.fr/fic-server/libfic"
)
type wantChoices struct {
FlagId int `json:"id"`
}
func treatWantChoices(pathname string, team *fic.Team) {
// Generate a unique identifier to follow the request in logs
bid := make([]byte, 5)
binary.LittleEndian.PutUint32(bid, rand.Uint32())
id := "[" + base64.StdEncoding.EncodeToString(bid) + "]"
log.Println(id, "New wantChoices receive", pathname)
var ask wantChoices
if cnt_raw, err := ioutil.ReadFile(pathname); err != nil {
log.Printf("%s [ERR] %s\n", id, err)
} else if err = json.Unmarshal(cnt_raw, &ask); err != nil {
log.Printf("%s [ERR] %s\n", id, err)
} else if ask.FlagId == 0 {
log.Printf("%s [WRN] Invalid content in wantChoices file: %s\n", id, pathname)
os.Remove(pathname)
} else if flag, err := fic.GetFlagKey(ask.FlagId); err != nil {
log.Printf("%s [ERR] %s\n", id, err)
} else if !team.CanSeeFlag(flag) {
log.Printf("%s [!!!] The team asks to display choices whereas it doesn't have access to the flag\n", id)
} else if exercice, err := flag.GetExercice(); err != nil {
log.Printf("%s [ERR] Unable to retrieve the flag's underlying exercice: %s\n", id, err)
} else if !team.HasAccess(exercice) {
log.Printf("%s [!!!] The team asks to display choices whereas it doesn't have access to the exercice\n", id)
} else if exercice.Disabled {
log.Println("[!!!] The team submits something for a disabled exercice")
} else if err = team.DisplayChoices(flag); err != nil {
log.Printf("%s [ERR] %s\n", id, err)
} else {
genTeamQueue <- team
if err = os.Remove(pathname); err != nil {
log.Printf("%s [ERR] %s\n", id, err)
}
}
}