Проект разбит на более мелкие части

lib/routes/Skins.go

@@ -0,0 +1,21 @@
+package routes
+
+import (
+	"net/http"
+	"github.com/gorilla/mux"
+	"log"
+	"elyby/minecraft-skinsystem/lib/tools"
+)
+
+func GetSkin(w http.ResponseWriter, r *http.Request) {
+	username := tools.ParseUsername(mux.Vars(r)["username"])
+	log.Println("request skin for username " + username);
+	rec, err := tools.FindRecord(username)
+	if (err != nil) {
+		http.Redirect(w, r, "http://skins.minecraft.net/MinecraftSkins/" + username + ".png", 301)
+		log.Println("Cannot get skin for username " + username)
+		return
+	}
+
+	http.Redirect(w, r, rec.Url, 301);
+}

lib/routes/Textures.go

@@ -0,0 +1,38 @@
+package routes
+
+import (
+	"net/http"
+	"github.com/gorilla/mux"
+	"log"
+	"elyby/minecraft-skinsystem/lib/structures"
+	"encoding/json"
+	"elyby/minecraft-skinsystem/lib/tools"
+)
+
+func GetTextures(w http.ResponseWriter, r *http.Request) {
+	username := tools.ParseUsername(mux.Vars(r)["username"])
+	log.Println("request textures for username " + username)
+
+	rec, err := tools.FindRecord(username)
+	if (err != nil || rec.SkinId == 0) {
+		rec.Url = "http://skins.minecraft.net/MinecraftSkins/" + username + ".png"
+		rec.Hash = string(tools.BuildNonElyTexturesHash(username))
+	}
+
+	textures := structures.TexturesResponse{
+		Skin: &structures.Skin{
+			Url: rec.Url,
+			Hash: rec.Hash,
+		},
+	}
+
+	if (rec.IsSlim) {
+		textures.Skin.Metadata = &structures.SkinMetadata{
+			Model: "slim",
+		}
+	}
+
+	response,_ := json.Marshal(textures)
+	w.Header().Set("Content-Type", "application/json")
+	w.Write(response)
+}

lib/services/services.go

@@ -0,0 +1,7 @@
+package services
+
+import (
+	"github.com/mediocregopher/radix.v2/redis"
+)
+
+var Redis *redis.Client

lib/structures/Skin.go

@@ -0,0 +1,7 @@
+package structures
+
+type Skin struct {
+	Url      string `json:"url"`
+	Hash     string `json:"hash"`
+	Metadata *SkinMetadata `json:"metadata,omitempty"`
+}

lib/structures/SkinItem.go

@@ -0,0 +1,11 @@
+package structures
+
+type SkinItem struct {
+	UserId   int    `json:"userId"`
+	Nickname string `json:"nickname"`
+	SkinId   int    `json:"skinId"`
+	Url      string `json:"url"`
+	Is1_8    bool   `json:"is1_8"`
+	IsSlim   bool   `json:"isSlim"`
+	Hash     string `json:"hash"`
+}

lib/structures/SkinMetadata.go

@@ -0,0 +1,5 @@
+package structures
+
+type SkinMetadata struct {
+	Model string `json:"model"`
+}

lib/structures/TexturesResponse.go

@@ -0,0 +1,5 @@
+package structures
+
+type TexturesResponse struct {
+	Skin *Skin `json:"SKIN"`
+}

lib/tools/tools.go

@@ -0,0 +1,48 @@
+package tools
+
+import (
+	"strings"
+	"time"
+	"crypto/md5"
+	"strconv"
+	"encoding/hex"
+	"elyby/minecraft-skinsystem/lib/structures"
+	"elyby/minecraft-skinsystem/lib/services"
+	"encoding/json"
+	"log"
+)
+
+func ParseUsername(username string) string {
+	const suffix = ".png"
+	if strings.HasSuffix(username, suffix) {
+		username = strings.TrimSuffix(username, suffix)
+	}
+
+	return username
+}
+
+func BuildNonElyTexturesHash(username string) string {
+	n := time.Now()
+	hour := time.Date(n.Year(), n.Month(), n.Day(), n.Hour(), 0, 0, 0, time.UTC).Unix()
+	hasher := md5.New()
+	hasher.Write([]byte("non-ely-" + strconv.FormatInt(hour, 10) + "-" + username))
+
+	return hex.EncodeToString(hasher.Sum(nil))
+}
+
+func FindRecord(username string) (structures.SkinItem, error) {
+	var record structures.SkinItem;
+	result, err := services.Redis.Cmd("GET", BuildKey(username)).Str();
+	if (err == nil) {
+		decodeErr := json.Unmarshal([]byte(result), &record)
+		if (decodeErr != nil) {
+			log.Println("Cannot decode record data")
+		}
+	}
+
+	return record, err
+}
+
+func BuildKey(username string) string {
+	return "username:" + strings.ToLower(username)
+}