mojang player api client

go.mod

@@ -2,7 +2,10 @@ module github.com/nothub/mrpack-install
 
 go 1.19
 
-require github.com/spf13/cobra v1.6.1
+require (
+	github.com/google/uuid v1.3.0
+	github.com/spf13/cobra v1.6.1
+)
 
 require (
 	github.com/inconshreveable/mousetrap v1.0.1 // indirect

go.sum

@@ -1,4 +1,6 @@
 github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
+github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/inconshreveable/mousetrap v1.0.1 h1:U3uMjPSQEBMNp1lFxmllqCPM6P5u/Xq7Pgzkat/bFNc=
 github.com/inconshreveable/mousetrap v1.0.1/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=

mojang/api.go

@@ -1,13 +1,19 @@
 package mojang
 
 import (
+	"encoding/hex"
 	"errors"
+	"github.com/google/uuid"
 	"github.com/nothub/mrpack-install/requester"
 	"time"
 )
 
 const manifestUrl = "https://launchermeta.mojang.com/mc/game/version_manifest.json"
 
+var playerUrl = func(name string) string {
+	return "https://api.mojang.com/users/profiles/minecraft/" + name
+}
+
 type Manifest struct {
 	Latest struct {
 		Release  string `json:"release"`
@@ -99,6 +105,11 @@ type Meta struct {
 	Type                   string    `json:"type"`
 }
 
+type Player struct {
+	Uuid string `json:"id"`
+	Name string `json:"name"`
+}
+
 func GetManifest() (*Manifest, error) {
 	var manifest Manifest
 	err := requester.DefaultHttpClient.GetJson(manifestUrl, &manifest, nil)
@@ -144,3 +155,33 @@ func GetMeta(version string) (*Meta, error) {
 
 	return &meta, nil
 }
+
+func GetPlayer(name string) (*Player, error) {
+	var player Player
+	err := requester.DefaultHttpClient.GetJson(playerUrl(name), &player, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	id, err := formatUuid(player.Uuid)
+	if err != nil {
+		return nil, err
+	}
+	player.Uuid = id
+
+	return &player, nil
+}
+
+func formatUuid(s string) (string, error) {
+	b, err := hex.DecodeString(s)
+	if err != nil {
+		return "", err
+	}
+
+	id, err := uuid.FromBytes(b)
+	if err != nil {
+		return "", err
+	}
+
+	return id.String(), nil
+}

mojang/api_test.go

@@ -0,0 +1,15 @@
+package mojang
+
+import (
+	"testing"
+)
+
+func TestGetPlayerUuid(t *testing.T) {
+	player, err := GetPlayer("lit_furnace")
+	if err != nil {
+		t.Fatal(err.Error())
+	}
+	if player.Name != "lit_furnace" || player.Uuid != "8be60c03-25c5-4e57-ab5d-0081e8736cf8" {
+		t.Fatal("Wrong player data!")
+	}
+}