Move Yggdrasil methods to this repo

src/util.go

@@ -14,7 +14,6 @@ import (
 
 	"github.com/gofiber/fiber/v2"
 	"github.com/mineatar-io/skin-render"
-	"github.com/mineatar-io/yggdrasil"
 )
 
 type QueryParams struct {
@@ -47,7 +46,7 @@ func LookupUUID(value string) (string, bool, error) {
 		return cache, true, nil
 	}
 
-	profile, err := yggdrasil.UsernameToUUID(value)
+	profile, err := UsernameToUUID(value)
 
 	if err != nil {
 		return "", false, err
@@ -113,7 +112,7 @@ func GetPlayerSkin(uuid string) (*image.NRGBA, bool, error) {
 		return cache, slim, nil
 	}
 
-	textures, err := yggdrasil.GetProfileTextures(uuid)
+	textures, err := GetProfileTextures(uuid)
 
 	if err != nil {
 		return nil, false, err
@@ -141,7 +140,7 @@ func GetPlayerSkin(uuid string) (*image.NRGBA, bool, error) {
 		return skin.GetDefaultSkin(slim), slim, nil
 	}
 
-	texturesResult, err := yggdrasil.GetDecodedTexturesValue(value)
+	texturesResult, err := GetDecodedTexturesValue(value)
 
 	if err != nil {
 		return nil, false, err

src/yggdrasil.go

@@ -0,0 +1,139 @@
+package main
+
+import (
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+)
+
+type MinecraftProfile struct {
+	Username string `json:"name"`
+	UUID     string `json:"id"`
+}
+
+type MinecraftProfileTextures struct {
+	UUID       string `json:"id"`
+	Username   string `json:"name"`
+	Legacy     bool   `json:"legacy"`
+	Properties []struct {
+		Name      string `json:"name"`
+		Value     string `json:"value"`
+		Signature string `json:"signature,omitempty"`
+	} `json:"properties"`
+}
+
+type MinecraftDecodedTextures struct {
+	Timestamp         int64  `json:"timestamp"`
+	UUID              string `json:"uuid"`
+	Username          string `json:"username"`
+	SignatureRequired bool   `json:"signatureRequired"`
+	Textures          struct {
+		Skin struct {
+			URL      string `json:"url"`
+			Metadata struct {
+				Model string `json:"model"`
+			} `json:"metadata,omitempty"`
+		} `json:"SKIN,omitempty"`
+		Cape struct {
+			URL string `json:"url"`
+		} `json:"CAPE,omitempty"`
+	} `json:"textures"`
+}
+
+func UsernameToUUID(username string) (*MinecraftProfile, error) {
+	req, err := http.NewRequest("GET", fmt.Sprintf("https://api.mojang.com/users/profiles/minecraft/%s", username), nil)
+
+	if err != nil {
+		return nil, err
+	}
+
+	req.Header.Set("User-Agent", "mineatar.io Skin Render API")
+
+	resp, err := http.DefaultClient.Do(req)
+
+	if err != nil {
+		return nil, err
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		if resp.StatusCode == http.StatusNoContent || resp.StatusCode == http.StatusNotFound {
+			return nil, nil
+		}
+
+		return nil, fmt.Errorf("yggdrasil: unexpected response: %s", resp.Status)
+	}
+
+	defer resp.Body.Close()
+
+	body, err := io.ReadAll(resp.Body)
+
+	if err != nil {
+		return nil, err
+	}
+
+	response := &MinecraftProfile{}
+
+	if err = json.Unmarshal(body, response); err != nil {
+		return nil, err
+	}
+
+	return response, nil
+}
+
+func GetProfileTextures(uuid string) (*MinecraftProfileTextures, error) {
+	req, err := http.NewRequest("GET", fmt.Sprintf("https://sessionserver.mojang.com/session/minecraft/profile/%s", uuid), nil)
+
+	if err != nil {
+		return nil, err
+	}
+
+	req.Header.Set("User-Agent", "mineatar.io Skin Render API")
+
+	resp, err := http.DefaultClient.Do(req)
+
+	if err != nil {
+		return nil, err
+	}
+
+	if resp.StatusCode != 200 {
+		if resp.StatusCode == 204 {
+			return nil, nil
+		}
+
+		return nil, fmt.Errorf("yggdrasil: unexpected response: %s", resp.Status)
+	}
+
+	defer resp.Body.Close()
+
+	body, err := io.ReadAll(resp.Body)
+
+	if err != nil {
+		return nil, err
+	}
+
+	response := &MinecraftProfileTextures{}
+
+	if err = json.Unmarshal(body, response); err != nil {
+		return nil, err
+	}
+
+	return response, nil
+}
+
+func GetDecodedTexturesValue(value string) (*MinecraftDecodedTextures, error) {
+	rawResult, err := base64.StdEncoding.DecodeString(value)
+
+	if err != nil {
+		return nil, err
+	}
+
+	result := &MinecraftDecodedTextures{}
+
+	if err = json.Unmarshal(rawResult, result); err != nil {
+		return nil, err
+	}
+
+	return result, nil
+}