Split backend service into checker and generator

Both are linked through a unix socket.

checker/rename.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	"encoding/base64"
+	"encoding/binary"
+	"encoding/json"
+	"fmt"
+	"html"
+	"io/ioutil"
+	"log"
+	"math/rand"
+	"os"
+	"regexp"
+
+	"srs.epita.fr/fic-server/libfic"
+)
+
+func validTeamName(name string) bool {
+	match, err := regexp.MatchString("^[A-Za-z0-9 àéèêëîïôùûü_-]{1,32}$", name)
+	return err == nil && match
+}
+
+func treatRename(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 renameTeam receive", pathname)
+
+	var keys map[string]string
+
+	if cnt_raw, err := ioutil.ReadFile(pathname); err != nil {
+		log.Printf("%s [ERR] %s\n", id, err)
+	} else if err := json.Unmarshal(cnt_raw, &keys); err != nil {
+		log.Printf("%s [ERR] %s\n", id, err)
+	} else if validTeamName(keys["newName"]) {
+		team.Name = keys["newName"]
+		if _, err := team.Update(); err != nil {
+			log.Printf("%s [WRN] Unable to change team name: %s\n", id, err)
+		}
+		appendGenQueue(fic.GenStruct{Id: id, Type: fic.GenTeam, TeamId: team.Id})
+		if _, err := fic.NewEvent(fmt.Sprintf("Souhaitons bonne chance à l'équipe <strong>%s</strong> qui vient de nous rejoindre&#160;!", html.EscapeString(team.Name)), "info"); err != nil {
+			log.Printf("%s [WRN] Unable to create event: %s\n", id, err)
+		}
+		appendGenQueue(fic.GenStruct{Id: id, Type: fic.GenEvents})
+		if err := os.Remove(pathname); err != nil {
+			log.Printf("%s [ERR] %s\n", id, err)
+		}
+	}
+}