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### JetBrains template
.idea
*.iml
### Go template
# Binaries for programs and plugins
*.exe
*.exe~
*.dll
*.so
*.dylib
# Test binary, built with `go test -c`
*.test
# Output of the go coverage tool, specifically when used with LiteIDE
*.out
# Dependency directories (remove the comment below to include it)
# vendor/
yggdrasil
/*.pem
/*.db
/config.ini

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GO_CMD ?= go
GO_BUILD = $(GO_CMD) build
GO_CLEAN = $(GO_CMD) clean
GO_TEST = $(GO_CMD) test
GO_GET = $(GO_CMD) get
BINARY = yggdrasil
PACKAGE_NAME = yggdrasil.tar.gz
default: $(BINARY)
$(BINARY):
$(GO_BUILD) -tags=nomsgpack -o $(BINARY)
package:$(BINARY)
tar -zcf $(PACKAGE_NAME) $(BINARY) config_example.ini
clean:
-$(GO_CLEAN)
-rm -rf $(BINARY) $(PACKAGE_NAME)

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# Go Yggdrasil Server
使用 Go 语言 Gin + GORM 框架编写的 Minecraft 登录协议服务端。
## 功能
+ 实现了 Minecraft 登录服务器时的认证部分以及材质部分。支持注册。
+ 兼容 [authlib-injector](https://github.com/yushijinhun/authlib-injector) 。
+ 支持使用在线账号（正版账号）登录，起到透明代理的功能。
## 用途
用于服务器管理员调试和测试时使用小号登录而不必关闭在线验证 (online-mode)。
禁止使玩家绕过在线验证登录服务器而不必购买 Minecraft。
禁止其他违反 [EULA](https://account.mojang.com/documents/minecraft_eula) 的行为。
## 用法
下载或编译得到可执行文件并运行，将会自动生成所需的配置文件和数据库文件。
配置文件格式详见 `config_example.ini`，请重命名为 `config.ini` 并放在执行目录下。
启动成功后在启动器（请使用第三方启动器）外置登录选项上填写运行的 URL 的根路径，比如 `http://localhost:8080`。
注册地址在 `/profile/index.html`。

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<!--
~ Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
~
~ This program is free software: you can redistribute it and/or modify
~ it under the terms of the GNU Affero General Public License as published by
~ the Free Software Foundation, either version 3 of the License, or
~ (at your option) any later version.
~
~ This program is distributed in the hope that it will be useful,
~ but WITHOUT ANY WARRANTY; without even the implied warranty of
~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
~ GNU Affero General Public License for more details.
~
~ You should have received a copy of the GNU Affero General Public License
~ along with this program. If not, see <https://www.gnu.org/licenses/>.
-->
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>注册</title>
<link rel="stylesheet" href="https://cdn.bootcss.com/normalize/8.0.0/normalize.min.css">
<!-- <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,500,700"> -->
<link href="https://cdn.bootcss.com/material-components-web/5.1.0/material-components-web.min.css" rel="stylesheet">
<script src="https://cdn.bootcss.com/material-components-web/5.1.0/material-components-web.min.js"></script>
<link rel="stylesheet" href="login.css">
</head>
<body >
<noscript>You need to enable JavaScript to run this app.</noscript>
<section class="header">
<h1>简陋注册页</h1>
</section>
<form id="reg-form" action="#">
<div class="mdc-text-field username">
<input type="email" class="mdc-text-field__input" id="username-input" name="username" required>
<label class="mdc-floating-label" for="username-input">邮箱</label>
<div class="mdc-line-ripple"></div>
</div>
<div class="mdc-text-field profileName">
<input type="text" class="mdc-text-field__input" id="profileName-input" name="profileName" required minlength="2">
<label class="mdc-floating-label" for="profileName-input">角色名</label>
<div class="mdc-line-ripple"></div>
</div>
<div class="mdc-text-field-helper-line profileName-helper">
<div class="mdc-text-field-helper-text" aria-hidden="true">字母，数字或下划线</div>
</div>
<div class="mdc-text-field password">
<input type="password" class="mdc-text-field__input" id="password-input" name="password" required minlength="6">
<label class="mdc-floating-label" for="password-input">密码</label>
<div class="mdc-line-ripple"></div>
</div>
<div class="mdc-text-field-helper-line password-helper">
<div class="mdc-text-field-helper-text" aria-hidden="true">警告: 暂无重置密码接口，请妥善保管密码</div>
</div>
<div class="button-container">
<button class="mdc-button mdc-button--raised login">
<div class="mdc-button__ripple"></div>
<span class="mdc-button__label">
已有账号登录
</span>
</button>
<button type="submit" class="mdc-button mdc-button--raised next">
<div class="mdc-button__ripple"></div>
<span class="mdc-button__label">
下一步
</span>
</button>
</div>
</form>
<div class="mdc-snackbar">
<div class="mdc-snackbar__surface">
<div class="mdc-snackbar__label"
role="status"
aria-live="polite">
注册失败
</div>
</div>
</div>
<script src="https://cdn.bootcss.com/jquery/3.5.0/jquery.min.js"></script>
<script src="login.js" async></script>
</body>
</html>

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/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
html, body {
height: 100%;
}
body {
font-family: 'Roboto';
margin: 0;
padding-top: 0.1px;
}
.header {
text-align: center;
}
.username,
.profileName,
.password,
.profileName-helper,
.password-helper {
display: block;
width: 300px;
margin: 20px auto;
}
.button-container {
display: flex;
justify-content: flex-end;
width: 300px;
margin: auto;
}
.button-container button {
margin: 3px;
}

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/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
const MDCSnackbar = mdc.snackbar.MDCSnackbar;
const MDCTextField = mdc.textField.MDCTextField;
const MDCRipple = mdc.ripple.MDCRipple;
const snackbar = new MDCSnackbar(document.querySelector(".mdc-snackbar"));
const username = new MDCTextField(document.querySelector(".username"));
const password = new MDCTextField(document.querySelector(".password"));
const profileName = new MDCTextField(document.querySelector(".profileName"));
new MDCRipple(document.querySelector(".next"));
snackbar.close();
var login = false;
$(".login").click(function (btn) {
login = true;
$(".profileName").hide();
$("#profileName-input").removeAttr("required");
$(".next").children(".mdc-button__label").text("登录");
$(this).hide();
});
$("#reg-form").submit(function (e) {
if (!login) {
$.ajax({
url: "/authserver/register",
type: "POST",
dataType: "JSON",
contentType: "application/json",
data: JSON.stringify({
username: username.value,
password: password.value,
profileName: profileName.value
}),
success: function (data) {
if (!data.id) {
if (data.errorMessage) snackbar.labelText = data.errorMessage;
snackbar.open();
} else {
login = true;
$(".profileName").hide();
$(".login").hide();
$(".next").children(".mdc-button__label").text("登录");
snackbar.timeoutMs = 10000;
snackbar.labelText = "注册成功，uid:" + data.id;
snackbar.open();
localStorage.uuid = data.id;
}
},
error: function (e) {
let response = JSON.parse(e.responseText);
if (response.errorMessage === "profileName exist") {
snackbar.labelText = "注册失败: 角色名已存在";
} else if (response.errorMessage === "profileName duplicate") {
snackbar.labelText = "注册失败: 角色名与正版用户冲突";
} else {
snackbar.labelText = "注册失败: " + response.errorMessage;
}
snackbar.open();
}
});
} else {
$.ajax({
url: "/authserver/authenticate",
type: "POST",
dataType: "JSON",
contentType: "application/json",
data: JSON.stringify({
username: username.value,
password: password.value
}),
success: function (data) {
if (!data.accessToken) {
snackbar.labelText = "登录失败:";
if (data.errorMessage) snackbar.labelText += data.errorMessage;
snackbar.open();
} else {
snackbar.timeoutMs = 5000;
snackbar.labelText = "登录成功，accessToken:" + data.accessToken;
snackbar.open();
localStorage.accessToken = data.accessToken;
localStorage.loginTime = new Date().getTime();
localStorage.profileName = data.selectedProfile.name;
if (data.selectedProfile) {
localStorage.profileName = data.selectedProfile.name;
localStorage.uuid = data.selectedProfile.id;
}
// localStorage.username = username.value;
// localStorage.password = password.value;
setTimeout(function () {
window.location = "user.html";
}, 3000);
}
},
error: function (e) {
let response = JSON.parse(e.responseText);
snackbar.labelText = "登录失败: " + response.errorMessage;
snackbar.open();
}
});
}
e.preventDefault();
});
$(document).ready(function () {
if (!localStorage.accessToken && localStorage.loginTime !== undefined &&
(new Date().getTime() - localStorage.loginTime) < 30 * 86400 * 1000) {
window.location = "user.html";
}
});

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/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
.header {
text-align: center;
}
.model,
.textureType,
.url,
.changeTo {
display: block;
width: 300px;
margin: 20px auto;
}
.file {
display: flex;
width: 300px;
margin: 20px auto;
}
.button-container {
display: flex;
justify-content: flex-end;
width: 300px;
margin: auto;
}
.button-container button {
margin: 3px;
}

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<!--
~ Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
~
~ This program is free software: you can redistribute it and/or modify
~ it under the terms of the GNU Affero General Public License as published by
~ the Free Software Foundation, either version 3 of the License, or
~ (at your option) any later version.
~
~ This program is distributed in the hope that it will be useful,
~ but WITHOUT ANY WARRANTY; without even the implied warranty of
~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
~ GNU Affero General Public License for more details.
~
~ You should have received a copy of the GNU Affero General Public License
~ along with this program. If not, see <https://www.gnu.org/licenses/>.
-->
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>角色信息</title>
<link rel="stylesheet" href="https://cdn.bootcss.com/normalize/8.0.0/normalize.min.css">
<link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
<link href="https://cdn.bootcss.com/material-components-web/5.1.0/material-components-web.min.css" rel="stylesheet">
<script src="https://cdn.bootcss.com/material-components-web/5.1.0/material-components-web.min.js"></script>
<link rel="stylesheet" href="user.css">
</head>
<body>
<noscript>You need to enable JavaScript to run this app.</noscript>
<section class="header">
<h1>简陋信息页</h1>
</section>
<section class="header">
<h3>上传材质</h3>
</section>
<form id="upload-form" action="#" enctype="multipart/form-data">
<div class="mdc-form-field textureType">
<label>材质类别: </label>
<div id="radio-skin" class="mdc-radio">
<input class="mdc-radio__native-control" type="radio" id="radio-3" name="type" value="skin" checked>
<div class="mdc-radio__background">
<div class="mdc-radio__outer-circle"></div>
<div class="mdc-radio__inner-circle"></div>
</div>
<div class="mdc-radio__ripple"></div>
</div>
<label for="radio-3">皮肤</label>
<div id="radio-cape" class="mdc-radio">
<input class="mdc-radio__native-control" type="radio" id="radio-4" name="type" value="cape">
<div class="mdc-radio__background">
<div class="mdc-radio__outer-circle"></div>
<div class="mdc-radio__inner-circle"></div>
</div>
<div class="mdc-radio__ripple"></div>
</div>
<label for="radio-3">披风</label>
</div>
<div class="mdc-form-field model">
<label>材质模型: </label>
<div id="radio-steve" class="mdc-radio">
<input class="mdc-radio__native-control" type="radio" id="radio-1" name="model" value="default" checked>
<div class="mdc-radio__background">
<div class="mdc-radio__outer-circle"></div>
<div class="mdc-radio__inner-circle"></div>
</div>
<div class="mdc-radio__ripple"></div>
</div>
<label for="radio-1">Steve</label>
<div id="radio-alex" class="mdc-radio">
<input class="mdc-radio__native-control" type="radio" id="radio-2" name="model" value="slim">
<div class="mdc-radio__background">
<div class="mdc-radio__outer-circle"></div>
<div class="mdc-radio__inner-circle"></div>
</div>
<div class="mdc-radio__ripple"></div>
</div>
<label for="radio-2">Alex</label>
</div>
<div class="mdc-text-field url">
<input type="url" class="mdc-text-field__input" id="url-input" name="url">
<label class="mdc-floating-label" for="url-input">材质url</label>
<div class="mdc-line-ripple"></div>
</div>
<label class="mdc-text-field mdc-text-field--outlined mdc-text-field--with-trailing-icon file">
<input type="file" style="display: none;" accept="image/*" class="mdc-text-field__input" id="file-input"
name="file" aria-label="Label">
<i class="material-icons mdc-text-field__icon mdc-text-field__icon--trailing" tabindex="0" role="button"
onclick="$('#file-input').val('').change();">delete</i>
<div class="mdc-notched-outline">
<div class="mdc-notched-outline__leading"></div>
<div class="mdc-notched-outline__notch">
<label id="file-path" for="file-input" class="mdc-floating-label">或者选择一个图片</label>
</div>
<div class="mdc-notched-outline__trailing"></div>
</div>
</label>
<div class="button-container">
<button type="submit" class="mdc-button mdc-button--raised upload">
<div class="mdc-button__ripple"></div>
<span class="mdc-button__label">
上传
</span>
</button>
<button type="button" id="delete-btn" class="mdc-button mdc-button--raised upload">
<div class="mdc-button__ripple"></div>
<span class="mdc-button__label">
重置为默认
</span>
</button>
</div>
</form>
<section class="header">
<h3>更改游戏标签</h3>
</section>
<form id="change-form" action="#">
<div class="mdc-text-field changeTo">
<input type="text" class="mdc-text-field__input" id="changeTo-input" name="changeTo" required minlength="2"
maxlength="16">
<script>
if (localStorage.profileName) document.getElementById("changeTo-input").value = localStorage.profileName;
</script>
<label class="mdc-floating-label" for="changeTo-input">游戏标签</label>
<div class="mdc-line-ripple"></div>
</div>
<div class="button-container">
<button type="submit" class="mdc-button mdc-button--raised submit">
<div class="mdc-button__ripple"></div>
<span class="mdc-button__label">
更改
</span>
</button>
</div>
</form>
<div class="mdc-snackbar">
<div class="mdc-snackbar__surface">
<div class="mdc-snackbar__label"
role="status"
aria-live="polite">
上传失败
</div>
</div>
</div>
<script src="https://cdn.bootcss.com/jquery/3.5.0/jquery.min.js"></script>
<script src="user.js" async></script>
</body>
</html>

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/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
const MDCSnackbar = mdc.snackbar.MDCSnackbar;
const MDCTextField = mdc.textField.MDCTextField;
const MDCFormField = mdc.formField.MDCFormField;
const MDCRadio = mdc.radio.MDCRadio;
//const MDCRipple = mdc.ripple.MDCRipple;
const snackbar = new MDCSnackbar(document.querySelector('.mdc-snackbar'));
const modelField = new MDCFormField(document.querySelector('.model'));
const radio1 = new MDCRadio(document.querySelector('#radio-steve'));
const radio2 = new MDCRadio(document.querySelector('#radio-alex'));
const radio3 = new MDCRadio(document.querySelector('#radio-skin'));
const radio4 = new MDCRadio(document.querySelector('#radio-cape'));
modelField.input = {radio1, radio2};
const url = new MDCTextField(document.querySelector('.url'));
const file = new MDCTextField(document.querySelector('.file'));
const changeTo = new MDCTextField(document.querySelector('.changeTo'));
const modelTypeForm = document.querySelector('.mdc-form-field.model');
snackbar.close()
$("#file-input").change(function() {
const path = this.value;
if (!path) {
$("#file-path").text("或选择一张图片");
$(".url").show();
} else {
$("#file-path").text(path);
url.value = '';
$(".url").hide();
}
});
const modelTypeChange = function () {
if (radio3.checked) {
$(modelTypeForm).show();
} else {
$(modelTypeForm).hide();
}
}
$("#radio-3").change(modelTypeChange)
$("#radio-4").change(modelTypeChange)
$("#url-input").on("input", function() {
const url = this.value;
if (!url) {
$(".file").show();
} else {
file.value = '';
$(".file").hide();
}
});
$(document).ready(function() {
if (!localStorage.accessToken) {
localStorage.loginTime = 1;
window.location = "index.html";
}
$.ajax({
url: '/authserver/validate',
type: 'POST',
dataType: "JSON",
contentType: "application/json",
data: JSON.stringify({
accessToken: localStorage.accessToken,
}),
success: function(data) {
//有效，啥也不整
},
error: function(e) {
if (e.status == 403) {
// 持续套娃
$.ajax({
url: '/authserver/refresh',
type: 'POST',
dataType: "JSON",
contentType: "application/json",
data: JSON.stringify({
accessToken: localStorage.accessToken,
}),
success: function(data) {
if (!data.accessToken) {
localStorage.loginTime = 1;
window.location = "index.html";
} else {
snackbar.timeoutMs = 5000;
snackbar.labelText = "刷新token成功，accessToken:" + data.accessToken;
snackbar.open();
localStorage.accessToken = data.accessToken;
localStorage.loginTime = new Date().getTime();
if(data.selectedProfile) {
localStorage.profileName = data.selectedProfile.name;
localStorage.uuid = data.selectedProfile.id;
}
}
},
error: function(e) {
if (e.status == 403) {
localStorage.loginTime = 1;
window.location = "index.html";
}
}
});
}
}
});
});
$("#upload-form").submit(function(e) {
e.preventDefault();
if (!url.value && !$("#file-input").val()) {
snackbar.timeoutMs = 5000;
snackbar.labelText = "没填信息";
snackbar.open();
return;
}
let textureType = 'skin'
if (radio3.checked) {
textureType = 'skin'
} else if (radio4.checked) {
textureType = 'cape'
}
if (!url.value) {
const formData = new FormData();
formData.append("model", radio1.checked ? radio1.value : radio2.value);
formData.append("file", $("#file-input")[0].files[0]);
//formData.contentType = "multipart/form-data";
$.ajax({
url: `/api/user/profile/${localStorage.uuid}/${textureType}`,
type: 'PUT',
processData: false,
contentType: false,
headers: {'Authorization':'Bearer ' + localStorage.accessToken},
data: formData,
success: function(data) {
snackbar.timeoutMs = 5000;
snackbar.labelText = "材质上传成功";
snackbar.open();
},
error: function(e) {
snackbar.timeoutMs = 5000;
snackbar.labelText = "材质上传失败";
snackbar.open();
}
});
} else if (url.value) {
$.ajax({
url: `/api/user/profile/${localStorage.uuid}/${textureType}`,
type: 'POST',
dataType: "JSON",
contentType: "application/json",
headers: {'Authorization':'Bearer ' + localStorage.accessToken},
data: JSON.stringify({
model: radio1.checked ? radio1.value : radio2.value,
url: url.value
}),
success: function(data) {
snackbar.timeoutMs = 5000;
snackbar.labelText = "材质上传成功";
snackbar.open();
},
error: function(e) {
snackbar.timeoutMs = 5000;
snackbar.labelText = "材质上传失败";
snackbar.open();
}
});
}
});
$("#change-form").submit(function(e) {
e.preventDefault();
if (changeTo.value.length <= 1) {
snackbar.timeoutMs = 5000;
snackbar.labelText = "更改失败, 角色名格式不正确";
snackbar.open();
return;
}
$.ajax({
url: '/authserver/change',
type: 'POST',
dataType: "JSON",
contentType: "application/json",
data: JSON.stringify({
accessToken: localStorage.accessToken,
changeTo: changeTo.value
}),
success: function(data) {
snackbar.timeoutMs = 5000;
snackbar.labelText = "更改成功";
snackbar.open();
localStorage.profileName = changeTo.value;
},
error: function(e) {
snackbar.timeoutMs = 5000;
snackbar.labelText = "更改失败, 可能是角色名已存在";
snackbar.open();
}
});
});
$('#delete-btn').click(function () {
let textureType = 'skin'
if (radio3.checked) {
textureType = 'skin'
} else if (radio4.checked) {
textureType = 'cape'
}
$.ajax({
url: `/api/user/profile/${localStorage.uuid}/${textureType}`,
type: 'DELETE',
headers: {'Authorization':'Bearer ' + localStorage.accessToken},
success: function(data) {
snackbar.timeoutMs = 5000;
snackbar.labelText = "恢复成功";
snackbar.open();
localStorage.profileName = changeTo.value;
},
error: function(e) {
snackbar.timeoutMs = 5000;
snackbar.labelText = "重置失败";
snackbar.open();
}
});
})

29
config_example.ini Normal file
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@@ -0,0 +1,29 @@
[meta]
;应用显示名称
server_name = A Mojang Yggdrasil Server
;软件名称
implementation_name = go-yggdrasil-server
;版本
implementation_version = v0.1
;皮肤、披风材质白名单
skin_domains = .example.com, localhost
;访问路径（不要添加"/"后缀）
skin_root_url = http://localhost:8080
[server]
;服务监听地址
server_address = :8080
[paths]
;数据库存储路径
database_file = sqlite.db
;私钥存储路径
private_key_file = private.pem
;公钥存储路径
public_key_file = public.pem

35
go.mod Normal file
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@@ -0,0 +1,35 @@
module yggdrasil-go
go 1.17
require (
github.com/gin-gonic/gin v1.7.7
github.com/google/uuid v1.3.0
github.com/hashicorp/golang-lru v0.5.4
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
golang.org/x/time v0.0.0-20220210224613-90d013bbcef8
gopkg.in/ini.v1 v1.66.4
gorm.io/driver/sqlite v1.2.6
gorm.io/gorm v1.22.3
)
require (
github.com/gin-contrib/sse v0.1.0 // indirect
github.com/go-playground/locales v0.13.0 // indirect
github.com/go-playground/universal-translator v0.17.0 // indirect
github.com/go-playground/validator/v10 v10.4.1 // indirect
github.com/golang/protobuf v1.3.3 // indirect
github.com/jinzhu/inflection v1.0.0 // indirect
github.com/jinzhu/now v1.1.4 // indirect
github.com/json-iterator/go v1.1.9 // indirect
github.com/kr/pretty v0.3.0 // indirect
github.com/leodido/go-urn v1.2.0 // indirect
github.com/mattn/go-isatty v0.0.12 // indirect
github.com/mattn/go-sqlite3 v1.14.9 // indirect
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 // indirect
github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 // indirect
github.com/ugorji/go/codec v1.1.7 // indirect
golang.org/x/sys v0.0.0-20210423082822-04245dca01da // indirect
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
gopkg.in/yaml.v2 v2.2.8 // indirect
)

90
go.sum Normal file
View File

@@ -0,0 +1,90 @@
github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
github.com/gin-gonic/gin v1.7.7 h1:3DoBmSbJbZAWqXJC3SLjAPfutPJJRN1U5pALB7EeTTs=
github.com/gin-gonic/gin v1.7.7/go.mod h1:axIBovoeJpVj8S3BwE0uPMTeReE4+AfFtqpqaZ1qq1U=
github.com/go-playground/assert/v2 v2.0.1 h1:MsBgLAaY856+nPRTKrp3/OZK38U/wa0CcBYNjji3q3A=
github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
github.com/go-playground/locales v0.13.0 h1:HyWk6mgj5qFqCT5fjGBuRArbVDfE4hi8+e8ceBS/t7Q=
github.com/go-playground/locales v0.13.0/go.mod h1:taPMhCMXrRLJO55olJkUXHZBHCxTMfnGwq/HNwmWNS8=
github.com/go-playground/universal-translator v0.17.0 h1:icxd5fm+REJzpZx7ZfpaD876Lmtgy7VtROAbHHXk8no=
github.com/go-playground/universal-translator v0.17.0/go.mod h1:UkSxE5sNxxRwHyU+Scu5vgOQjsIJAF8j9muTVoKLVtA=
github.com/go-playground/validator/v10 v10.4.1 h1:pH2c5ADXtd66mxoE0Zm9SUhxE20r7aM3F26W0hOn+GE=
github.com/go-playground/validator/v10 v10.4.1/go.mod h1:nlOn6nFhuKACm19sB/8EGNn9GlaMV7XkbRSipzJ0Ii4=
github.com/golang/protobuf v1.3.3 h1:gyjaxf+svBWX08ZjK86iN9geUJF0H6gp2IRKX6Nf6/I=
github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
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/hashicorp/golang-lru v0.5.4 h1:YDjusn29QI/Das2iO9M0BHnIbxPeyuCHsjMW+lJfyTc=
github.com/hashicorp/golang-lru v0.5.4/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4=
github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
github.com/jinzhu/now v1.1.2/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
github.com/jinzhu/now v1.1.4 h1:tHnRBy1i5F2Dh8BAFxqFzxKqqvezXrL2OW1TnX+Mlas=
github.com/jinzhu/now v1.1.4/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
github.com/json-iterator/go v1.1.9 h1:9yzud/Ht36ygwatGx56VwCZtlI/2AD15T1X2sjSuGns=
github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
github.com/leodido/go-urn v1.2.0 h1:hpXL4XnriNwQ/ABnpepYM/1vCLWNDfUNts8dX3xTG6Y=
github.com/leodido/go-urn v1.2.0/go.mod h1:+8+nEpDfqqsY+g338gtMEUOtuK+4dEMhiQEgxpxOKII=
github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
github.com/mattn/go-sqlite3 v1.14.9 h1:10HX2Td0ocZpYEjhilsuo6WWtUqttj2Kb0KtD86/KYA=
github.com/mattn/go-sqlite3 v1.14.9/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A/KQRfk6bU=
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 h1:Esafd1046DLDQ0W1YjYsBW+p8U2u7vzgW2SQVmlNazg=
github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/rogpeppe/go-internal v1.6.1 h1:/FiVV8dS/e+YqF2JvO3yXRFbBLTIuSDkuC7aBOAvL+k=
github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/ugorji/go v1.1.7 h1:/68gy2h+1mWMrwZFeD1kQialdSzAb432dtpeJ42ovdo=
github.com/ugorji/go v1.1.7/go.mod h1:kZn38zHttfInRq0xu/PH0az30d+z6vm202qpg1oXVMw=
github.com/ugorji/go/codec v1.1.7 h1:2SvQaVZ1ouYrrKKwoSk2pzd4A9evlKJb9oTL+OaLUSs=
github.com/ugorji/go/codec v1.1.7/go.mod h1:Ax+UKWsSmolVDwsd+7N3ZtXu+yMGCf907BLYF3GoBXY=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 h1:psW17arqaxU48Z5kZ0CQnkZWQJsqcURM6tKiBApRjXI=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210423082822-04245dca01da h1:b3NXsE2LusjYGGjL5bxEVZZORm/YEFFrWFjR8eFrw/c=
golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
golang.org/x/time v0.0.0-20220210224613-90d013bbcef8 h1:vVKdlvoWBphwdxWKrFZEuM0kGgGLxUOYcY4U/2Vjg44=
golang.org/x/time v0.0.0-20220210224613-90d013bbcef8/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
gopkg.in/ini.v1 v1.66.4 h1:SsAcf+mM7mRZo2nJNGt8mZCjG8ZRaNGMURJw7BsIST4=
gopkg.in/ini.v1 v1.66.4/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gorm.io/driver/sqlite v1.2.6 h1:SStaH/b+280M7C8vXeZLz/zo9cLQmIGwwj3cSj7p6l4=
gorm.io/driver/sqlite v1.2.6/go.mod h1:gyoX0vHiiwi0g49tv+x2E7l8ksauLK0U/gShcdUsjWY=
gorm.io/gorm v1.22.3 h1:/JS6z+GStEQvJNW3t1FTwJwG/gZ+A7crFdRqtvG5ehA=
gorm.io/gorm v1.22.3/go.mod h1:F+OptMscr0P2F2qU97WT1WimdH9GaQPoDW7AYd5i2Y0=

192
main.go Normal file
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@@ -0,0 +1,192 @@
/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package main
import (
"context"
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"embed"
"encoding/pem"
"errors"
"github.com/gin-gonic/gin"
"gopkg.in/ini.v1"
"gorm.io/driver/sqlite"
"gorm.io/gorm"
"io/fs"
"io/ioutil"
"log"
"net/http"
"os"
"os/signal"
"syscall"
"time"
"yggdrasil-go/model"
"yggdrasil-go/router"
"yggdrasil-go/util"
)
//go:embed assets/*
var f embed.FS
type MetaCfg struct {
ServerName string `ini:"server_name"`
ImplementationName string `ini:"implementation_name"`
ImplementationVersion string `ini:"implementation_version"`
SkinDomains []string `ini:"skin_domains"`
SkinRootUrl string `ini:"skin_root_url"`
}
func main() {
configFilePath := "config.ini"
cfg, err := ini.LooseLoad(configFilePath)
if err != nil {
log.Fatal("无法读取配置文件", err)
}
meta := MetaCfg{
ServerName: "A Mojang Yggdrasil Server",
ImplementationName: "go-yggdrasil-server",
ImplementationVersion: "v0.1",
SkinDomains: []string{".example.com", "localhost"},
SkinRootUrl: "http://localhost:8080",
}
err = cfg.Section("meta").MapTo(&meta)
if err != nil {
log.Fatal("无法读取配置文件", err)
}
pathSection := cfg.Section("paths")
privateKeyPath := pathSection.Key("private_key_file").MustString("private.pem")
publicKeyPath := pathSection.Key("public_key_file").MustString("public.pem")
databasePath := pathSection.Key("database_file").MustString("sqlite.db")
address := cfg.Section("server").Key("server_address").MustString(":8080")
_, err = os.Stat(configFilePath)
if err != nil && os.IsNotExist(err) {
log.Println("配置文件不存在，已使用默认配置")
_ = cfg.Section("meta").ReflectFrom(&meta)
err = cfg.SaveToIndent(configFilePath, " ")
if err != nil {
log.Println("警告: 无法保存配置文件", err)
}
}
checkRsaKeyFile(privateKeyPath, publicKeyPath)
publicKeyContent, err := ioutil.ReadFile(publicKeyPath)
if err != nil {
log.Fatal("无法读取公钥内容", err)
}
db, err := gorm.Open(sqlite.Open("file:"+databasePath+"?cache=shared"), &gorm.Config{
SkipDefaultTransaction: true,
})
if err != nil {
log.Fatal("无法连接数据库", err)
}
err = db.AutoMigrate(&model.User{}, &model.Texture{})
if err != nil {
log.Fatal("无法导入数据库", err)
}
serverMeta := router.ServerMeta{}
serverMeta.Meta.ServerName = meta.ServerName
serverMeta.Meta.ImplementationName = meta.ImplementationName
serverMeta.Meta.ImplementationVersion = meta.ImplementationVersion
serverMeta.Meta.FeatureNoMojangNamespace = true
serverMeta.Meta.Links.Homepage = meta.SkinRootUrl + "/profile/user.html"
serverMeta.Meta.Links.Register = meta.SkinRootUrl + "/profile/index.html"
serverMeta.SkinDomains = meta.SkinDomains
serverMeta.SignaturePublickey = string(publicKeyContent)
gin.SetMode(gin.ReleaseMode)
r := gin.Default()
router.InitRouters(r, db, &serverMeta, meta.SkinRootUrl)
assetsFs, err := fs.Sub(f, "assets")
if err != nil {
log.Fatal(err)
}
r.StaticFS("/profile", http.FS(assetsFs))
srv := &http.Server{
Addr: address,
Handler: r,
}
go func() {
if err := srv.ListenAndServe(); err != nil && errors.Is(err, http.ErrServerClosed) {
log.Printf("listen: %s\n", err)
}
}()
log.Printf("已启动, 地址: %s\n", srv.Addr)
quit := make(chan os.Signal)
signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
<-quit
log.Println("关闭...")
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
if err := srv.Shutdown(ctx); err != nil {
log.Fatal("强制关闭:", err)
}
log.Println("退出")
}
func checkRsaKeyFile(privateKeyPath string, publicKeyPath string) {
_, err := os.Stat(privateKeyPath)
if err != nil && os.IsNotExist(err) {
privatePem, err := os.OpenFile(privateKeyPath, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0600)
if err != nil {
log.Fatalln("无法创建私钥文件", err)
}
defer privatePem.Close()
publicPem, err := os.OpenFile(publicKeyPath, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
if err != nil {
log.Fatalln("无法创建公钥文件", err)
}
defer publicPem.Close()
privateKey, err := rsa.GenerateKey(rand.Reader, 4096)
util.PrivateKey = privateKey
if err != nil {
log.Fatalln("无法生成 RSA 密钥", err)
}
privateKeyBytes, err := x509.MarshalPKCS8PrivateKey(privateKey)
if err != nil {
log.Fatalln("无法序列化 RSA 密钥", err)
}
err = pem.Encode(privatePem, &pem.Block{
Type: "PRIVATE",
Bytes: privateKeyBytes,
})
if err != nil {
log.Fatalln("无法写入私钥文件", err)
}
publicKeyBytes := x509.MarshalPKCS1PublicKey(&privateKey.PublicKey)
err = pem.Encode(publicPem, &pem.Block{
Type: "PUBLIC",
Bytes: publicKeyBytes,
})
if err != nil {
log.Fatalln("无法写入公钥文件", err)
}
} else if err != nil {
log.Fatalln("无法打开私钥文件", err)
} else {
pemContent, err := os.ReadFile(privateKeyPath)
if err != nil {
log.Fatalln("无法打开私钥文件", err)
}
pemBlock, _ := pem.Decode(pemContent)
privateKeyI, err := x509.ParsePKCS8PrivateKey(pemBlock.Bytes)
if err != nil {
log.Fatalln("无法解析私钥文件", err)
}
util.PrivateKey = privateKeyI.(*rsa.PrivateKey)
}
}

40
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/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package model
import "time"
type AuthenticationSession struct {
ServerId string
Token Token
Ip string
createAt int64
}
func NewAuthenticationSession(serverId string, token *Token, ip string) (session AuthenticationSession) {
session.ServerId = serverId
session.Token = *token
session.Ip = ip
session.createAt = time.Now().UnixMilli()
return session
}
func (s *AuthenticationSession) HasExpired() bool {
d := time.Now().Sub(time.UnixMilli(s.createAt))
return d > 30*time.Second
}

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/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package model
import (
"encoding/json"
"github.com/google/uuid"
"time"
"yggdrasil-go/util"
)
type Profile struct {
Id uuid.UUID
Name string
ModelType ModelType
Textures map[string]string
}
type ModelType string
const (
STEVE ModelType = "default"
ALEX = "slim"
)
type MetadataType map[string]interface{}
type SkinTexture struct {
Url string `json:"url"`
Metadata *MetadataType `json:"metadata,omitempty"`
}
type CapeTexture struct {
Url string `json:"url"`
}
type TexturesType struct {
SKIN *SkinTexture `json:"SKIN,omitempty"`
CAPE *CapeTexture `json:"CAPE,omitempty"`
}
func NewProfile(id uuid.UUID, name string, modelType ModelType, serializedTextures string) (this Profile) {
this.Id = id
this.Name = name
this.ModelType = modelType
if len(serializedTextures) < 2 {
serializedTextures = "{}"
}
err := json.Unmarshal([]byte(serializedTextures), &this.Textures)
if err != nil {
panic(err)
}
return this
}
type ProfileResponse struct {
Name string `json:"name" binding:"required"`
Id string `json:"id" binding:"required"`
}
func (p *Profile) ToSimpleResponse() ProfileResponse {
return ProfileResponse{
Id: util.UnsignedString(p.Id),
Name: p.Name,
}
}
func (p *Profile) ToCompleteResponse(signed bool, textureBaseUrl string) (map[string]interface{}, error) {
textures := TexturesType{}
if hash, ok := p.Textures["SKIN"]; ok {
skin := SkinTexture{
Url: textureBaseUrl + "/" + hash,
}
if p.ModelType == ALEX {
m := MetadataType{
"model": ALEX,
}
skin.Metadata = &m
}
textures.SKIN = &skin
}
if hash, ok := p.Textures["CAPE"]; ok {
cape := CapeTexture{
Url: textureBaseUrl + "/" + hash,
}
textures.CAPE = &cape
}
texturesStr, err := util.EncodeBase64(util.Property{
Name: "timestamp", Value: time.Now().UnixMilli(),
}, util.Property{
Name: "profileId", Value: util.UnsignedString(p.Id),
}, util.Property{
Name: "profileName", Value: p.Name,
}, util.Property{
Name: "textures", Value: textures,
}, util.Property{
Name: "signatureRequired", Value: signed,
})
if err != nil {
return nil, err
}
properties := util.Properties(signed,
util.StringProperty{Name: "textures", Value: texturesStr},
util.StringProperty{Name: "uploadableTextures", Value: "skin,cape"},
)
return map[string]interface{}{
"id": util.UnsignedString(p.Id),
"name": p.Name,
"properties": properties,
}, nil
}
func (p *Profile) Equals(another *Profile) bool {
return p == another || p.Id == another.Id
}

72
model/texture.go Normal file
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/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package model
import (
"crypto/sha256"
"encoding/hex"
"image"
"image/color"
"time"
)
type Texture struct {
Hash string `gorm:"size:64;primaryKey"`
CreatedAt time.Time
UpdatedAt time.Time
Data []byte `gorm:"not null"`
Used uint `gorm:"not null"`
}
func ComputeTextureId(img image.Image) string {
digest := sha256.New()
bound := img.Bounds()
width := bound.Dx()
height := bound.Dy()
var buf [4096]byte
putInt(buf[:], int32(width))
putInt(buf[4:], int32(height))
var pos = 8
for x := 0; x < width; x++ {
for y := 0; y < height; y++ {
rgba := color.NRGBAModel.Convert(img.At(x, y)).(color.NRGBA)
if rgba.A == 0 {
copy(buf[pos:], []byte{0, 0, 0, 0})
} else {
copy(buf[pos:], []byte{rgba.A, rgba.R, rgba.G, rgba.B})
}
pos += 4
if pos == len(buf) {
pos = 0
digest.Write(buf[:])
}
}
}
if pos > 0 {
digest.Write(buf[:pos])
}
return hex.EncodeToString(digest.Sum(nil))
}
func putInt(buf []byte, n int32) {
buf[0] = byte(n >> 24 & 0xff)
buf[1] = byte(n >> 16 & 0xff)
buf[2] = byte(n >> 8 & 0xff)
buf[3] = byte(n & 0xff)
}

62
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/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package model
import (
"time"
"yggdrasil-go/util"
)
type Token struct {
createAt int64
ClientToken string
AccessToken string
SelectedProfile Profile
}
type AvailableLevel uint
const (
Valid AvailableLevel = iota
NeedRefresh
Invalid
)
func NewToken(accessToken string, clientToken *string, selectedProfile *Profile) (this Token) {
this.createAt = time.Now().UnixMilli()
if clientToken == nil || (len(*clientToken) == 0) {
this.ClientToken = util.RandomUUID()
} else {
this.ClientToken = *clientToken
}
this.AccessToken = accessToken
this.SelectedProfile = *selectedProfile
return this
}
func (t *Token) GetAvailableLevel() AvailableLevel {
d := time.Now().Sub(time.UnixMilli(t.createAt))
if d > time.Hour*24*30 {
return Invalid
} else if d > time.Hour*24*15 {
return NeedRefresh
} else {
return Valid
}
}

87
model/user.go Normal file
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/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package model
import (
"encoding/json"
"github.com/google/uuid"
"time"
"yggdrasil-go/util"
)
type User struct {
ID uuid.UUID `gorm:"column:id;type:bytes;size:36;primaryKey"`
CreatedAt time.Time
UpdatedAt time.Time
Email string `gorm:"size:64;uniqueIndex:email_idx"`
Password string `gorm:"size:255"`
ProfileName string `gorm:"size:64;uniqueIndex:profile_name_idx"`
ProfileModelType string `gorm:"size:8;default:STEVE"`
SerializedTextures string `gorm:"type:TEXT NULL"`
profile *Profile `gorm:"-"`
}
func (u *User) Profile() (*Profile, error) {
if len(u.ProfileName) == 0 {
return nil, util.NewIllegalArgumentError("Do not have profile")
}
if u.profile != nil {
return u.profile, nil
} else {
var modelType ModelType
if u.ProfileModelType == "ALEX" {
modelType = ALEX
} else {
modelType = STEVE
}
profile := NewProfile(u.ID, u.ProfileName, modelType, u.SerializedTextures)
return &profile, nil
}
}
func (u *User) SetProfile(p *Profile) {
u.profile = p
u.ProfileName = p.Name
switch p.ModelType {
case ALEX:
u.ProfileModelType = "ALEX"
break
case STEVE:
u.ProfileModelType = "STEVE"
break
}
serialized, err := json.Marshal(p.Textures)
if err != nil {
panic("Can not serialize texture")
}
u.SerializedTextures = string(serialized)
}
type UserResponse struct {
Username string `json:"username,omitempty"`
Properties []util.StringProperty `json:"properties"`
Id string `json:"id,omitempty"`
}
func (u *User) ToResponse() UserResponse {
return UserResponse{
Id: util.UnsignedString(u.ID),
Username: u.ProfileName,
Properties: make([]util.StringProperty, 0),
}
}

62
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/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package router
import (
"github.com/gin-gonic/gin"
"net/http"
)
type MetaInfo struct {
ImplementationName string `json:"implementationName,omitempty"`
ImplementationVersion string `json:"implementationVersion,omitempty"`
ServerName string `json:"serverName,omitempty"`
Links struct {
Homepage string `json:"homepage,omitempty"`
Register string `json:"register,omitempty"`
} `json:"links"`
FeatureNonEmailLogin bool `json:"feature.non_email_login,omitempty"`
FeatureLegacySkinApi bool `json:"feature.legacy_skin_api,omitempty"`
FeatureNoMojangNamespace bool `json:"feature.no_mojang_namespace,omitempty"`
}
type ServerMeta struct {
Meta MetaInfo `json:"meta"`
SkinDomains []string `json:"skinDomains"`
SignaturePublickey string `json:"signaturePublickey"`
}
type HomeRouter interface {
Home(c *gin.Context)
}
type homeRouterImpl struct {
serverMeta ServerMeta
}
func NewHomeRouter(meta *ServerMeta) HomeRouter {
homeRouter := homeRouterImpl{
serverMeta: *meta,
}
return &homeRouter
}
// Home 首页路由
func (h *homeRouterImpl) Home(c *gin.Context) {
c.JSON(http.StatusOK, h.serverMeta)
}

68
router/init.go Normal file
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/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package router
import (
"github.com/gin-gonic/gin"
"gorm.io/gorm"
"yggdrasil-go/service"
)
func InitRouters(router *gin.Engine, db *gorm.DB, meta *ServerMeta, skinRootUrl string) {
err := router.SetTrustedProxies([]string{"127.0.0.1"})
if err != nil {
panic(err)
}
tokenService := service.NewTokenService()
userService := service.NewUserService(tokenService, db)
sessionService := service.NewSessionService(tokenService)
textureService := service.NewTextureService(tokenService, db)
homeRouter := NewHomeRouter(meta)
userRouter := NewUserRouter(userService, skinRootUrl)
sessionRouter := NewSessionRouter(sessionService, skinRootUrl)
textureRouter := NewTextureRouter(textureService)
router.GET("/", homeRouter.Home)
authserver := router.Group("/authserver")
{
authserver.POST("/register", userRouter.Register)
authserver.POST("/authenticate", userRouter.Login)
authserver.POST("/change", userRouter.ChangeProfile)
authserver.POST("/refresh", userRouter.Refresh)
authserver.POST("/validate", userRouter.Validate)
authserver.POST("/invalidate", userRouter.Invalidate)
authserver.POST("/signout", userRouter.Signout)
}
router.GET("/users/profiles/minecraft/:username", userRouter.UsernameToUUID)
sessionserver := router.Group("/sessionserver/session/minecraft")
{
sessionserver.GET("/profile/:uuid", userRouter.QueryProfile)
sessionserver.POST("/join", sessionRouter.JoinServer)
sessionserver.GET("/hasJoined", sessionRouter.HasJoinedServer)
}
router.GET("/textures/:hash", textureRouter.GetTexture)
api := router.Group("/api")
{
api.POST("/profiles/minecraft", userRouter.QueryUUIDs)
api.POST("/user/profile/:uuid/:textureType", textureRouter.SetTexture)
api.PUT("/user/profile/:uuid/:textureType", textureRouter.UploadTexture)
api.DELETE("/user/profile/:uuid/:textureType", textureRouter.DeleteTexture)
api.GET("/users/profiles/minecraft/:username", userRouter.UsernameToUUID)
}
}

85
router/session_router.go Normal file
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/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package router
import (
"github.com/gin-gonic/gin"
"net/http"
"strings"
"yggdrasil-go/service"
"yggdrasil-go/util"
)
type SessionRouter interface {
JoinServer(c *gin.Context)
HasJoinedServer(c *gin.Context)
}
type sessionRouterImpl struct {
sessionService service.SessionService
skinRootUrl string
}
func NewSessionRouter(sessionService service.SessionService, skinRootUrl string) SessionRouter {
sessionRouter := sessionRouterImpl{
sessionService: sessionService,
skinRootUrl: skinRootUrl,
}
return &sessionRouter
}
type JoinServerRequest struct {
AccessToken string `json:"accessToken" binding:"required"`
SelectedProfile string `json:"selectedProfile" binding:"required"`
ServerId string `json:"serverId" binding:"required"`
}
func (s *sessionRouterImpl) JoinServer(c *gin.Context) {
request := JoinServerRequest{}
err := c.ShouldBindJSON(&request)
if err != nil {
c.AbortWithStatusJSON(http.StatusForbidden, util.NewForbiddenOperationError(err.Error()))
return
}
ip := c.Request.RemoteAddr[:strings.LastIndexByte(c.Request.RemoteAddr, ':')]
err = s.sessionService.JoinServer(request.AccessToken, request.ServerId, request.SelectedProfile, ip)
if err != nil {
util.HandleError(c, err)
return
}
c.Status(http.StatusNoContent)
}
func (s *sessionRouterImpl) HasJoinedServer(c *gin.Context) {
username := c.Query("username")
serverId := c.Query("serverId")
ip := c.DefaultQuery("ip",
c.Request.RemoteAddr[:strings.LastIndexByte(c.Request.RemoteAddr, ':')])
var textureBaseUrl string
if len(s.skinRootUrl) > 0 {
textureBaseUrl = strings.TrimRight(s.skinRootUrl, "/") + "/textures"
} else {
textureBaseUrl = c.Request.URL.Scheme + "://" + c.Request.URL.Hostname() + "/textures"
}
response, err := s.sessionService.HasJoinedServer(serverId, username, ip, textureBaseUrl)
if err != nil {
util.HandleError(c, err)
return
}
c.JSON(http.StatusOK, response)
}

166
router/texture_router.go Normal file
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/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package router
import (
"github.com/gin-gonic/gin"
"net/http"
"yggdrasil-go/model"
"yggdrasil-go/service"
"yggdrasil-go/util"
)
type TextureRouter interface {
GetTexture(c *gin.Context)
SetTexture(c *gin.Context)
UploadTexture(c *gin.Context)
DeleteTexture(c *gin.Context)
}
type textureRouterImpl struct {
textureService service.TextureService
}
func NewTextureRouter(textureService service.TextureService) TextureRouter {
textureRouter := textureRouterImpl{textureService: textureService}
return &textureRouter
}
type SetTextureRequest struct {
Url string `json:"url" binding:"required,url"`
Model string `json:"model" binding:"oneof=slim default"`
}
func (t *textureRouterImpl) GetTexture(c *gin.Context) {
hash := c.Param("hash")
response, err := t.textureService.GetTexture(hash)
if err != nil {
util.HandleError(c, err)
return
}
c.Header("Cache-Control", "public, max-age=31536000")
c.Data(http.StatusOK, "image/png", response)
}
func (t *textureRouterImpl) SetTexture(c *gin.Context) {
request := SetTextureRequest{Model: string(model.STEVE)}
err := c.ShouldBindJSON(&request)
if err != nil {
c.AbortWithStatusJSON(http.StatusForbidden, util.NewForbiddenOperationError(err.Error()))
return
}
bearerToken := c.GetHeader("Authorization")
if len(bearerToken) < 8 {
c.AbortWithStatusJSON(http.StatusUnauthorized, util.NewForbiddenOperationError(util.MessageInvalidToken))
return
}
accessToken := bearerToken[7:]
profileId, err := util.ToUUID(c.Param("uuid"))
if err != nil {
c.AbortWithStatusJSON(http.StatusBadRequest, util.NewIllegalArgumentError(err.Error()))
return
}
textureType := c.Param("textureType")
if textureType != "skin" && textureType != "cape" {
c.AbortWithStatusJSON(http.StatusBadRequest, util.NewIllegalArgumentError("Invalid texture type."))
return
}
if request.Model == "" {
request.Model = string(model.STEVE)
}
modelType := model.ModelType(request.Model)
err = t.textureService.SetTexture(accessToken, profileId, request.Url, textureType, &modelType)
if err != nil {
util.HandleError(c, err)
return
}
c.Status(http.StatusNoContent)
}
func (t *textureRouterImpl) UploadTexture(c *gin.Context) {
bearerToken := c.GetHeader("Authorization")
if len(bearerToken) < 8 {
c.AbortWithStatusJSON(http.StatusUnauthorized, util.NewForbiddenOperationError(util.MessageInvalidToken))
return
}
accessToken := bearerToken[7:]
profileId, err := util.ToUUID(c.Param("uuid"))
if err != nil {
c.AbortWithStatusJSON(http.StatusBadRequest, util.NewIllegalArgumentError(err.Error()))
return
}
textureType := c.Param("textureType")
if textureType != "skin" && textureType != "cape" {
c.AbortWithStatusJSON(http.StatusBadRequest, util.NewIllegalArgumentError("Invalid texture type."))
return
}
modelStr := c.PostForm("model")
modelType := model.STEVE
if modelStr == "ALEX" {
modelType = model.ALEX
}
file, err := c.FormFile("file")
if err != nil {
c.AbortWithStatusJSON(http.StatusBadRequest, util.NewIllegalArgumentError(err.Error()))
return
}
if file.Size > (1 << 20) {
c.AbortWithStatusJSON(http.StatusBadRequest, util.NewIllegalArgumentError("File too large(more than 1MiB)"))
return
}
fileReader, err := file.Open()
if err != nil {
c.AbortWithStatusJSON(http.StatusInternalServerError, util.YggdrasilError{
ErrorCode: "Internal Server Error",
ErrorMessage: "Can not open file.",
})
return
}
defer fileReader.Close()
err = t.textureService.UploadTexture(accessToken, profileId, fileReader, textureType, &modelType)
if err != nil {
util.HandleError(c, err)
return
}
c.Status(http.StatusNoContent)
}
func (t *textureRouterImpl) DeleteTexture(c *gin.Context) {
bearerToken := c.GetHeader("Authorization")
if len(bearerToken) < 8 {
c.AbortWithStatusJSON(http.StatusUnauthorized, util.NewForbiddenOperationError(util.MessageInvalidToken))
return
}
accessToken := bearerToken[7:]
profileId, err := util.ToUUID(c.Param("uuid"))
if err != nil {
c.AbortWithStatusJSON(http.StatusBadRequest, util.NewIllegalArgumentError(err.Error()))
return
}
textureType := c.Param("textureType")
if textureType != "skin" && textureType != "cape" {
c.AbortWithStatusJSON(http.StatusBadRequest, util.NewIllegalArgumentError("Invalid texture type."))
return
}
err = t.textureService.DeleteTexture(accessToken, profileId, textureType)
if err != nil {
util.HandleError(c, err)
return
}
c.Status(http.StatusNoContent)
}

265
router/user_router.go Normal file
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/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package router
import (
"github.com/gin-gonic/gin"
"net/http"
"strings"
"yggdrasil-go/model"
"yggdrasil-go/service"
"yggdrasil-go/util"
)
type UserRouter interface {
Register(c *gin.Context)
Login(c *gin.Context)
ChangeProfile(c *gin.Context)
Refresh(c *gin.Context)
Validate(c *gin.Context)
Invalidate(c *gin.Context)
Signout(c *gin.Context)
UsernameToUUID(c *gin.Context)
QueryUUIDs(c *gin.Context)
QueryProfile(c *gin.Context)
}
type userRouterImpl struct {
userService service.UserService
skinRootUrl string
}
func NewUserRouter(userService service.UserService, skinRootUrl string) UserRouter {
userRouter := userRouterImpl{
userService: userService,
skinRootUrl: skinRootUrl,
}
return &userRouter
}
type RegRequest struct {
Username string `json:"username" binding:"required,email"`
Password string `json:"password" binding:"required"`
ProfileName string `json:"profileName" binding:"required"`
}
type MinecraftAgent struct {
Name string `json:"name"`
Version int `json:"version"`
}
type ClientTokenBase struct {
ClientToken *string `json:"clientToken,omitempty"`
}
type AccessTokenBase struct {
AccessToken string `json:"accessToken" binding:"required"`
}
type DualTokenBase struct {
AccessTokenBase
ClientTokenBase
}
type LoginRequest struct {
ClientTokenBase
Username string `json:"username" binding:"required,email"`
Password string `json:"password" binding:"required"`
RequestUser bool `json:"requestUser"`
Agent *MinecraftAgent `json:"agent,omitempty"`
}
type RefreshRequest struct {
DualTokenBase
RequestUser bool `json:"requestUser"`
SelectedProfile *model.ProfileResponse `json:"selectedProfile,omitempty"`
}
type ValidateRequest struct {
DualTokenBase
}
type ChangeProfileRequest struct {
DualTokenBase
ChangeTo string `json:"changeTo" binding:"required"`
}
type InvalidateRequest struct {
AccessTokenBase
}
type SignoutRequest struct {
Username string `json:"username" binding:"required,email"`
Password string `json:"password" binding:"required"`
}
func (u *userRouterImpl) Register(c *gin.Context) {
request := RegRequest{}
err := c.ShouldBindJSON(&request)
if err != nil {
c.AbortWithStatusJSON(http.StatusForbidden, util.NewForbiddenOperationError(err.Error()))
return
}
response, err := u.userService.Register(request.Username, request.Password, request.ProfileName)
if err != nil {
util.HandleError(c, err)
return
}
c.JSON(http.StatusOK, response)
}
func (u *userRouterImpl) Login(c *gin.Context) {
request := LoginRequest{}
err := c.ShouldBindJSON(&request)
if err != nil {
c.AbortWithStatusJSON(http.StatusForbidden, util.NewForbiddenOperationError(err.Error()))
return
}
response, err := u.userService.Login(request.Username, request.Password, request.ClientToken, request.RequestUser)
if err != nil {
util.HandleError(c, err)
return
}
c.JSON(http.StatusOK, response)
}
func (u *userRouterImpl) ChangeProfile(c *gin.Context) {
request := ChangeProfileRequest{}
err := c.ShouldBindJSON(&request)
if err != nil {
c.AbortWithStatusJSON(http.StatusForbidden, util.NewForbiddenOperationError(err.Error()))
return
}
err = u.userService.ChangeProfile(request.AccessToken, request.ClientToken, request.ChangeTo)
if err != nil {
util.HandleError(c, err)
return
}
c.Status(http.StatusNoContent)
}
func (u *userRouterImpl) Refresh(c *gin.Context) {
request := RefreshRequest{}
err := c.ShouldBindJSON(&request)
if err != nil {
c.AbortWithStatusJSON(http.StatusForbidden, util.NewForbiddenOperationError(err.Error()))
return
}
response, err := u.userService.Refresh(request.AccessToken, request.ClientToken, request.RequestUser, request.SelectedProfile)
if err != nil {
util.HandleError(c, err)
return
}
c.JSON(http.StatusOK, response)
}
func (u *userRouterImpl) Validate(c *gin.Context) {
request := ValidateRequest{}
err := c.ShouldBindJSON(&request)
if err != nil {
c.AbortWithStatusJSON(http.StatusForbidden, util.NewForbiddenOperationError(err.Error()))
return
}
err = u.userService.Validate(request.AccessToken, request.ClientToken)
if err != nil {
util.HandleError(c, err)
return
}
c.Status(http.StatusNoContent)
}
func (u *userRouterImpl) Invalidate(c *gin.Context) {
request := InvalidateRequest{}
err := c.ShouldBindJSON(&request)
if err != nil {
c.AbortWithStatusJSON(http.StatusForbidden, util.NewForbiddenOperationError(err.Error()))
return
}
err = u.userService.Invalidate(request.AccessToken)
if err != nil {
util.HandleError(c, err)
return
}
c.Status(http.StatusNoContent)
}
func (u *userRouterImpl) Signout(c *gin.Context) {
request := SignoutRequest{}
err := c.ShouldBindJSON(&request)
if err != nil {
c.AbortWithStatusJSON(http.StatusForbidden, util.NewForbiddenOperationError(err.Error()))
return
}
err = u.userService.Signout(request.Username, request.Password)
if err != nil {
util.HandleError(c, err)
return
}
c.Status(http.StatusNoContent)
}
func (u *userRouterImpl) UsernameToUUID(c *gin.Context) {
username := c.Param("username")
response, err := u.userService.UsernameToUUID(username)
if err != nil {
util.HandleError(c, err)
return
}
if response != nil {
c.JSON(http.StatusOK, response)
} else {
c.Status(http.StatusNoContent)
}
}
func (u *userRouterImpl) QueryUUIDs(c *gin.Context) {
var request []string
err := c.ShouldBindJSON(&request)
if err != nil {
c.AbortWithStatusJSON(http.StatusForbidden, util.NewForbiddenOperationError(err.Error()))
return
}
response, err := u.userService.QueryUUIDs(request)
if err != nil {
util.HandleError(c, err)
return
}
c.JSON(http.StatusOK, response)
}
func (u *userRouterImpl) QueryProfile(c *gin.Context) {
profileIdStr := c.Param("uuid")
profileId, err := util.ToUUID(profileIdStr)
if err != nil {
c.AbortWithStatusJSON(http.StatusBadRequest, util.NewIllegalArgumentError(err.Error()))
return
}
unsigned := "true" == c.DefaultQuery("unsigned", "false")
var textureBaseUrl string
if len(u.skinRootUrl) > 0 {
textureBaseUrl = strings.TrimRight(u.skinRootUrl, "/") + "/textures"
} else {
textureBaseUrl = c.Request.URL.Scheme + "://" + c.Request.URL.Hostname() + "/textures"
}
response, err := u.userService.QueryProfile(profileId, unsigned, textureBaseUrl)
if err != nil {
util.HandleError(c, err)
return
}
c.JSON(http.StatusOK, response)
}

89
service/session_service.go Normal file
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/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package service
import (
"fmt"
lru "github.com/hashicorp/golang-lru"
"net/http"
"net/url"
"yggdrasil-go/model"
"yggdrasil-go/util"
)
type SessionService interface {
JoinServer(accessToken string, serverId string, selectedProfile string, ip string) error
HasJoinedServer(serverId string, username string, ip string, textureBaseUrl string) (map[string]interface{}, error)
}
type sessionStore struct {
sessionCache *lru.Cache
tokenService TokenService
}
func NewSessionService(service TokenService) SessionService {
cache, _ := lru.New(100000)
store := sessionStore{
sessionCache: cache,
tokenService: service,
}
return &store
}
func (s *sessionStore) JoinServer(accessToken string, serverId string, selectedProfile string, ip string) error {
token, ok := s.tokenService.GetToken(accessToken)
if ok && util.UnsignedString(token.SelectedProfile.Id) == selectedProfile {
session := model.NewAuthenticationSession(serverId, token, ip)
s.sessionCache.Add(serverId, &session)
} else {
data := map[string]string{
"accessToken": accessToken,
"selectedProfile": selectedProfile,
"serverId": serverId,
}
err := util.PostObjectForError("https://sessionserver.mojang.com/session/minecraft/join", data)
if err != nil {
return err
}
}
return nil
}
func (s *sessionStore) HasJoinedServer(serverId string, username string, ip string, textureBaseUrl string) (map[string]interface{}, error) {
if value, ok := s.sessionCache.Get(serverId); ok {
if session, ok := value.(*model.AuthenticationSession); ok {
if !(session.HasExpired() && s.sessionCache.Remove(serverId)) &&
(ip == session.Ip) && (session.Token.SelectedProfile.Name == username) {
return session.Token.SelectedProfile.ToCompleteResponse(true, textureBaseUrl)
}
}
} else {
m := make(map[string]interface{})
includeIp := ""
if ip != "" {
includeIp = "&ip=" + url.QueryEscape(ip)
}
err := util.GetObject(fmt.Sprintf("https://sessionserver.mojang.com/session/minecraft/hasJoined?username=%s&serverId=%s%s", url.QueryEscape(username), url.QueryEscape(serverId), includeIp), &m)
if err != nil {
return nil, err
} else {
return m, nil
}
}
return nil, util.YggdrasilError{Status: http.StatusNoContent}
}

246
service/texture_service.go Normal file
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@@ -0,0 +1,246 @@
/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package service
import (
"bytes"
"github.com/google/uuid"
"gorm.io/gorm"
"image"
_ "image/jpeg"
"image/png"
"io"
"net/http"
"net/url"
"strings"
"yggdrasil-go/model"
"yggdrasil-go/util"
)
type TextureService interface {
GetTexture(hash string) ([]byte, error)
SetTexture(accessToken string, profileId uuid.UUID, skinUrl string, textureType string, model *model.ModelType) error
UploadTexture(accessToken string, profileId uuid.UUID, skinReader io.Reader, textureType string, model *model.ModelType) error
DeleteTexture(accessToken string, profileId uuid.UUID, textureType string) error
}
type textureServiceImpl struct {
tokenService TokenService
db *gorm.DB
}
func NewTextureService(tokenService TokenService, db *gorm.DB) TextureService {
textureService := textureServiceImpl{
tokenService: tokenService,
db: db,
}
return &textureService
}
func (t *textureServiceImpl) GetTexture(hash string) ([]byte, error) {
texture := model.Texture{}
if err := t.db.First(&texture, "hash = ?", hash).Error; err == nil {
return texture.Data, nil
} else {
err := util.YggdrasilError{
Status: http.StatusNotFound,
ErrorCode: "Not Found",
ErrorMessage: "Texture Not Found",
}
return nil, &err
}
}
func (t *textureServiceImpl) SetTexture(accessToken string, profileId uuid.UUID, skinUrl string, textureType string, modelType *model.ModelType) error {
token, ok := t.tokenService.GetToken(accessToken)
if !ok || token.GetAvailableLevel() != model.Valid {
return util.NewForbiddenOperationError(util.MessageInvalidToken)
}
if token.SelectedProfile.Id != profileId {
return util.NewForbiddenOperationError("Profile mismatch.")
}
user := model.User{}
if err := t.db.First(&user, profileId).Error; err != nil {
return util.NewForbiddenOperationError(util.MessageProfileNotFound)
}
skinDownloadUrl, err := url.Parse(skinUrl)
if err != nil {
return util.NewIllegalArgumentError("Invalid skin url: " + err.Error())
}
response, err := http.Get(skinDownloadUrl.String())
if err != nil {
return err
}
defer response.Body.Close()
if response.ContentLength > 1048576 {
return util.NewIllegalArgumentError("File too large(more than 1MiB)")
}
reader := io.LimitReader(response.Body, 1048576)
var header bytes.Buffer
conf, _, err := image.DecodeConfig(io.TeeReader(reader, &header))
if err != nil || conf.Width > 1024 || conf.Height > 1024 {
return util.NewIllegalArgumentError("Image too large(max 1024 pixels each dimension)")
}
im, _, err := image.Decode(io.MultiReader(&header, reader))
if err != nil {
return err
}
err = t.saveTexture(&user, im, textureType, modelType)
if err != nil {
return err
} else {
profile, _ := user.Profile()
token.SelectedProfile = *profile
return nil
}
}
func (t *textureServiceImpl) UploadTexture(accessToken string, profileId uuid.UUID, skinReader io.Reader, textureType string, modelType *model.ModelType) error {
token, ok := t.tokenService.GetToken(accessToken)
if !ok || token.GetAvailableLevel() != model.Valid {
return util.NewForbiddenOperationError(util.MessageInvalidToken)
}
if token.SelectedProfile.Id != profileId {
return util.NewForbiddenOperationError("Profile mismatch.")
}
user := model.User{}
if err := t.db.First(&user, profileId).Error; err != nil {
return util.NewForbiddenOperationError(util.MessageProfileNotFound)
}
reader := io.LimitReader(skinReader, 1048576)
var header bytes.Buffer
conf, _, err := image.DecodeConfig(io.TeeReader(reader, &header))
if err != nil || conf.Width > 1024 || conf.Height > 1024 {
return util.NewIllegalArgumentError("Image too large(max 1024 pixels each dimension)")
}
im, _, err := image.Decode(io.MultiReader(&header, reader))
if err != nil {
return err
}
err = t.saveTexture(&user, im, textureType, modelType)
if err != nil {
return err
} else {
profile, _ := user.Profile()
token.SelectedProfile = *profile
return nil
}
}
func (t *textureServiceImpl) DeleteTexture(accessToken string, profileId uuid.UUID, textureType string) error {
token, ok := t.tokenService.GetToken(accessToken)
if !ok || token.GetAvailableLevel() != model.Valid {
return util.NewForbiddenOperationError(util.MessageInvalidToken)
}
if token.SelectedProfile.Id != profileId {
return util.NewForbiddenOperationError("Profile mismatch.")
}
user := model.User{}
if err := t.db.First(&user, profileId).Error; err != nil {
return util.NewForbiddenOperationError(util.MessageProfileNotFound)
}
textureType = strings.ToUpper(textureType)
if textureType != "SKIN" && textureType != "CAPE" {
textureType = "SKIN"
}
var profile *model.Profile
hash, ok := token.SelectedProfile.Textures[textureType]
if ok {
delete(token.SelectedProfile.Textures, textureType)
profile = &token.SelectedProfile
} else {
p, err := user.Profile()
if err != nil {
return err
}
hash, ok = p.Textures[textureType]
if ok {
delete(p.Textures, textureType)
} else {
return util.NewForbiddenOperationError(util.MessageProfileNotFound)
}
profile = p
}
return t.db.Transaction(func(tx *gorm.DB) error {
texture := model.Texture{}
if err := tx.Select("hash", "used").First(&texture, "hash = ?", hash).Error; err == nil {
if texture.Used < 2 {
tx.Delete(&texture)
} else {
tx.Model(&texture).Update("used", gorm.Expr("used - ?", 1))
}
}
user.SetProfile(profile)
return tx.Save(&user).Error
})
}
func (t *textureServiceImpl) saveTexture(user *model.User, skinImage image.Image, textureType string, modelType *model.ModelType) error {
var modelValue model.ModelType
if modelType != nil && *modelType == model.ALEX {
modelValue = *modelType
} else {
modelValue = model.STEVE
}
textureType = strings.ToUpper(textureType)
if textureType != "SKIN" && textureType != "CAPE" {
textureType = "SKIN"
}
return t.db.Transaction(func(tx *gorm.DB) error {
profile, err := user.Profile()
if err != nil {
return err
}
if textureType == "SKIN" {
profile.ModelType = modelValue
}
hash := model.ComputeTextureId(skinImage)
oldHash, oldExist := profile.Textures[textureType]
texture := model.Texture{}
if err := tx.First(&texture, "hash = ?", hash).Error; err != nil {
texture.Hash = hash
texture.Used = 1
buffer := bytes.Buffer{}
err := png.Encode(&buffer, skinImage)
if err != nil {
return err
}
texture.Data = buffer.Bytes()
if err := tx.Create(&texture).Error; err != nil {
return err
}
} else {
if oldExist && oldHash != hash {
tx.Model(&texture).Update("used", gorm.Expr("used + ?", 1))
}
}
if oldExist && oldHash != hash {
oldTexture := model.Texture{}
if err := tx.Select("hash", "used").First(&oldTexture, "hash = ?", oldHash).Error; err == nil {
if oldTexture.Used < 2 {
tx.Delete(&oldTexture)
} else {
tx.Model(&oldTexture).Update("used", gorm.Expr("used - ?", 1))
}
}
}
profile.Textures[textureType] = hash
user.SetProfile(profile)
return tx.Save(&user).Error
})
}

114
service/token_service.go Normal file
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@@ -0,0 +1,114 @@
/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package service
import (
"github.com/google/uuid"
lru "github.com/hashicorp/golang-lru"
"yggdrasil-go/model"
"yggdrasil-go/util"
)
type TokenService interface {
RemoveToken(token *model.Token)
RemoveAccessToken(accessToken string)
RemoveAll(profileId uuid.UUID)
AcquireToken(user *model.User, clientToken *string, profile *model.Profile) *model.Token
VerifyToken(accessToken string, clientToken *string) model.AvailableLevel
GetToken(accessToken string) (*model.Token, bool)
UpdateProfile(profileId uuid.UUID, profile *model.Profile)
}
type tokenStore struct {
tokenCache *lru.Cache
}
func NewTokenService() TokenService {
cache, _ := lru.New(10000000)
store := tokenStore{
tokenCache: cache,
}
return &store
}
func (t *tokenStore) RemoveToken(token *model.Token) {
t.RemoveAccessToken(token.AccessToken)
}
func (t *tokenStore) RemoveAccessToken(accessToken string) {
t.tokenCache.Remove(accessToken)
}
func (t *tokenStore) RemoveAll(profileId uuid.UUID) {
keys := t.tokenCache.Keys()
for _, k := range keys {
if v, ok := t.tokenCache.Get(k); ok {
if v.(*model.Token).SelectedProfile.Id == profileId {
t.tokenCache.Remove(k)
}
}
}
}
func (t *tokenStore) AcquireToken(user *model.User, clientToken *string, profile *model.Profile) *model.Token {
if profile == nil {
var err error
profile, err = user.Profile()
if err != nil {
panic(err)
}
}
token := model.NewToken(util.RandomUUID(), clientToken, profile)
t.tokenCache.Add(token.AccessToken, &token)
return &token
}
func (t *tokenStore) VerifyToken(accessToken string, clientToken *string) model.AvailableLevel {
if value, ok := t.tokenCache.Get(accessToken); ok {
if token, ok := value.(*model.Token); ok {
if clientToken != nil && token.ClientToken != *clientToken {
return model.Invalid
}
if token.GetAvailableLevel() == model.Invalid {
t.RemoveToken(token)
}
return token.GetAvailableLevel()
}
}
return model.Invalid
}
func (t *tokenStore) GetToken(accessToken string) (*model.Token, bool) {
if value, ok := t.tokenCache.Get(accessToken); ok {
if token, ok := value.(*model.Token); ok {
return token, true
}
}
return nil, false
}
func (t *tokenStore) UpdateProfile(profileId uuid.UUID, profile *model.Profile) {
keys := t.tokenCache.Keys()
for _, k := range keys {
if v, ok := t.tokenCache.Get(k); ok {
if token := v.(*model.Token); token.SelectedProfile.Id == profileId {
token.SelectedProfile = *profile
}
}
}
}

412
service/user_service.go Normal file
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@@ -0,0 +1,412 @@
/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package service
import (
"fmt"
"github.com/google/uuid"
lru "github.com/hashicorp/golang-lru"
"golang.org/x/crypto/bcrypt"
"golang.org/x/time/rate"
"gorm.io/gorm"
"net/http"
"net/url"
"regexp"
"strings"
"yggdrasil-go/model"
"yggdrasil-go/util"
)
type UserService interface {
Register(username string, password string, profileName string) (*model.UserResponse, error)
Login(username string, password string, clientToken *string, requestUser bool) (*LoginResponse, error)
ChangeProfile(accessToken string, clientToken *string, changeTo string) error
Refresh(accessToken string, clientToken *string, requestUser bool, selectedProfile *model.ProfileResponse) (*LoginResponse, error)
Validate(accessToken string, clientToken *string) error
Invalidate(accessToken string) error
Signout(username string, password string) error
UsernameToUUID(username string) (*model.ProfileResponse, error)
QueryUUIDs(usernames []string) ([]model.ProfileResponse, error)
QueryProfile(profileId uuid.UUID, unsigned bool, textureBaseUrl string) (map[string]interface{}, error)
}
type LoginResponse struct {
User *model.UserResponse `json:"user"`
ClientToken string `json:"clientToken"`
AccessToken string `json:"accessToken"`
AvailableProfiles []model.ProfileResponse `json:"availableProfiles,omitempty"`
SelectedProfile *model.ProfileResponse `json:"selectedProfile"`
}
type userSrviceImpl struct {
tokenService TokenService
db *gorm.DB
limitLruCache *lru.Cache
}
func NewUserService(tokenService TokenService, db *gorm.DB) UserService {
cache, _ := lru.New(10000)
userSrvice := userSrviceImpl{
tokenService: tokenService,
db: db,
limitLruCache: cache,
}
return &userSrvice
}
func (u *userSrviceImpl) Register(username string, password string, profileName string) (*model.UserResponse, error) {
var count int64
if err := u.db.Table("users").Where("email = ?", username).Count(&count).Error; err != nil {
return nil, err
}
if count > 0 {
return nil, util.NewForbiddenOperationError("email exist")
}
if err := u.db.Table("users").Where("profile_name = ?", profileName).Count(&count).Error; err != nil {
return nil, err
}
if count > 0 {
return nil, util.NewForbiddenOperationError("profileName exist")
} else if _, err := mojangUsernameToUUID(profileName); err == nil {
return nil, util.NewForbiddenOperationError("profileName duplicate")
}
matched, err := regexp.MatchString("^(\\w){3,}(\\.\\w+)*@(\\w){2,}((\\.\\w+)+)$", username)
if err != nil {
return nil, err
}
if !matched || len(password) < 6 || isInvalidProfileName(profileName) {
return nil, util.NewIllegalArgumentError("bad format(valid email, password longer than 5, profileName longer than 1)")
}
hashedPass, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
if err != nil {
return nil, err
}
user := model.User{
ID: uuid.New(),
Email: username,
Password: string(hashedPass),
}
profile := model.NewProfile(user.ID, profileName, model.STEVE, "")
user.SetProfile(&profile)
if err := u.db.Create(&user).Error; err != nil {
return nil, err
}
response := user.ToResponse()
return &response, nil
}
func isInvalidProfileName(name string) bool {
// To support Unicode (like Chinese) profile name, abandoned treatment.
return name == "" || strings.ContainsRune(name, ' ') || len(name) <= 1
//return name == "" || !name.matches("^[0-1a-zA-Z_]{2,16}$");
}
func (u *userSrviceImpl) Login(username string, password string, clientToken *string, requestUser bool) (*LoginResponse, error) {
if !u.allowUser(username) {
return nil, util.YggdrasilError{
Status: http.StatusTooManyRequests,
ErrorCode: "ForbiddenOperationException",
ErrorMessage: "Forbidden",
}
}
user := model.User{}
if err := u.db.Where("email = ?", username).First(&user).Error; err == nil {
if bcrypt.CompareHashAndPassword([]byte(user.Password), []byte(password)) == nil {
var useClientToken string
if clientToken == nil || *clientToken == "" {
useClientToken = util.RandomUUID()
} else {
useClientToken = *clientToken
}
token := u.tokenService.AcquireToken(&user, &useClientToken, nil)
profile, err := user.Profile()
if err != nil {
panic(err)
}
simpleResponse := profile.ToSimpleResponse()
var response = LoginResponse{
AccessToken: token.AccessToken,
ClientToken: token.ClientToken,
AvailableProfiles: []model.ProfileResponse{simpleResponse},
SelectedProfile: &simpleResponse,
}
userResponse := user.ToResponse()
if requestUser {
response.User = &userResponse
}
return &response, nil
} else {
return nil, util.NewForbiddenOperationError(util.MessageInvalidCredentials)
}
} else {
data := map[string]interface{}{
"agent": map[string]interface{}{
"name": "Minecraft",
"version": 1,
},
"username": username,
"password": password,
"clientToken": password,
"requestUser": requestUser,
}
loginResponse := LoginResponse{}
err := util.PostObject("https://authserver.mojang.com/authenticate", data, &loginResponse)
if err != nil {
return nil, err
} else {
return &loginResponse, nil
}
}
}
func (u *userSrviceImpl) ChangeProfile(accessToken string, clientToken *string, changeTo string) error {
if u.tokenService.VerifyToken(accessToken, clientToken) != model.Valid {
return util.NewForbiddenOperationError(util.MessageInvalidToken)
}
token, ok := u.tokenService.GetToken(accessToken)
if !ok {
return util.NewForbiddenOperationError(util.MessageInvalidToken)
}
user := model.User{}
profile := token.SelectedProfile
err := u.db.First(&user, profile.Id).Error
if err != nil {
return util.NewForbiddenOperationError("User not found")
}
var count int64
if err := u.db.Table("users").Where("profile_name = ?", changeTo).Count(&count).Error; err != nil {
return err
}
if count > 0 {
return util.NewForbiddenOperationError("profileName exist")
} else if _, err := mojangUsernameToUUID(changeTo); err == nil {
return util.NewForbiddenOperationError("profileName duplicate")
}
if isInvalidProfileName(changeTo) {
return util.NewForbiddenOperationError("bad format(profileName longer than 1)")
}
if err = u.db.Model(&user).Update("profile_name", changeTo).Error; err != nil {
return err
}
profile.Name = changeTo
u.tokenService.UpdateProfile(user.ID, &profile)
return nil
}
func (u *userSrviceImpl) Refresh(accessToken string, clientToken *string, requestUser bool, selectedProfile *model.ProfileResponse) (*LoginResponse, error) {
if len(accessToken) <= 36 {
user := model.User{}
if selectedProfile != nil {
// 由于当前实现把用户 UUID 作为角色 UUID，所以不支持角色选择，只要选择了就会报错
return nil, util.NewForbiddenOperationError(util.MessageTokenAlreadyAssigned)
}
if u.tokenService.VerifyToken(accessToken, clientToken) == model.Invalid {
return nil, util.NewForbiddenOperationError(util.MessageInvalidToken)
}
token, ok := u.tokenService.GetToken(accessToken)
if !ok {
return nil, util.NewForbiddenOperationError(util.MessageInvalidToken)
}
if err := u.db.First(&user, token.SelectedProfile.Id).Error; err != nil {
return nil, util.NewIllegalArgumentError(util.MessageProfileNotFound)
}
newToken := u.tokenService.AcquireToken(&user, clientToken, nil)
u.tokenService.RemoveAccessToken(accessToken)
simpleResponse := newToken.SelectedProfile.ToSimpleResponse()
var response = LoginResponse{
AccessToken: newToken.AccessToken,
ClientToken: newToken.ClientToken,
AvailableProfiles: []model.ProfileResponse{},
SelectedProfile: &simpleResponse,
}
userResponse := user.ToResponse()
if requestUser {
response.User = &userResponse
}
return &response, nil
} else {
data := map[string]interface{}{
"accessToken": accessToken,
"clientToken": clientToken,
"requestUser": requestUser,
"selectedProfile": selectedProfile,
}
loginResponse := LoginResponse{}
err := util.PostObject("https://authserver.mojang.com/refresh", data, &loginResponse)
if err != nil {
return nil, err
} else {
return &loginResponse, nil
}
}
}
func (u *userSrviceImpl) Validate(accessToken string, clientToken *string) error {
if len(accessToken) <= 36 {
if u.tokenService.VerifyToken(accessToken, clientToken) != model.Valid {
return util.NewForbiddenOperationError(util.MessageInvalidToken)
} else {
return nil
}
} else {
data := map[string]interface{}{
"accessToken": accessToken,
"clientToken": clientToken,
}
err := util.PostObjectForError("https://authserver.mojang.com/validate", data)
if err != nil {
return err
} else {
return nil
}
}
}
func (u *userSrviceImpl) Invalidate(accessToken string) error {
if len(accessToken) <= 36 {
u.tokenService.RemoveAccessToken(accessToken)
} else {
data := map[string]interface{}{
"accessToken": accessToken,
}
err := util.PostObjectForError("https://authserver.mojang.com/invalidate", data)
if err != nil {
return err
}
}
return nil
}
func (u *userSrviceImpl) Signout(username string, password string) error {
if !u.allowUser(username) {
return util.YggdrasilError{
Status: http.StatusTooManyRequests,
ErrorCode: "ForbiddenOperationException",
ErrorMessage: "Forbidden",
}
}
user := model.User{}
if err := u.db.Where("email = ?", username).First(&user).Error; err == nil {
if bcrypt.CompareHashAndPassword([]byte(user.Password), []byte(password)) == nil {
u.tokenService.RemoveAll(user.ID)
return nil
} else {
return util.NewForbiddenOperationError(util.MessageInvalidCredentials)
}
} else {
data := map[string]interface{}{
"username": username,
"password": password,
}
err := util.PostObjectForError("https://authserver.mojang.com/signout", data)
if err != nil {
return err
} else {
return nil
}
}
}
func (u *userSrviceImpl) UsernameToUUID(username string) (*model.ProfileResponse, error) {
user := model.User{}
if result := u.db.Where("profile_name = ?", username).First(&user); result.Error == nil {
return &model.ProfileResponse{
Name: user.ProfileName,
Id: util.UnsignedString(user.ID),
}, nil
} else {
response, err := mojangUsernameToUUID(username)
if err != nil {
return nil, nil
} else {
return &response, nil
}
}
}
func (u *userSrviceImpl) QueryUUIDs(usernames []string) ([]model.ProfileResponse, error) {
var users []model.User
var names []string
if len(usernames) > 10 {
names = usernames[:10]
} else {
names = usernames
}
var responses = make([]model.ProfileResponse, 0)
if err := u.db.Table("users").Where("profile_name in ?", names).Find(&users).Error; err == nil {
for _, user := range users {
responses = append(responses, model.ProfileResponse{
Name: user.ProfileName,
Id: util.UnsignedString(user.ID),
})
}
}
return responses, nil
}
func (u *userSrviceImpl) QueryProfile(profileId uuid.UUID, unsigned bool, textureBaseUrl string) (map[string]interface{}, error) {
user := model.User{}
if err := u.db.First(&user, profileId).Error; err == nil {
profile, err := user.Profile()
if err != nil {
return nil, err
}
response, err := profile.ToCompleteResponse(!unsigned, textureBaseUrl)
if err != nil {
return nil, err
} else {
return response, err
}
} else {
result := map[string]interface{}{}
err := util.GetObject(fmt.Sprintf("https://sessionserver.mojang.com/session/minecraft/profile/%s?unsigned=%t", util.UnsignedString(profileId), unsigned), &result)
if err != nil {
return nil, err
} else {
return result, nil
}
}
}
func (u *userSrviceImpl) allowUser(username string) bool {
if value, ok := u.limitLruCache.Get(username); ok {
if limiter, ok := value.(*rate.Limiter); ok {
return limiter.Allow()
} else {
u.limitLruCache.Remove(username)
}
} else {
limiter := rate.NewLimiter(0.2, 3)
u.limitLruCache.Add(username, limiter)
}
return true
}
func mojangUsernameToUUID(username string) (model.ProfileResponse, error) {
response := model.ProfileResponse{}
reqUrl := fmt.Sprintf("https://api.mojang.com/users/profiles/minecraft/%s", url.PathEscape(username))
err := util.GetObject(reqUrl, &response)
if err != nil {
return response, err
} else {
return response, nil
}
}

82
util/error_utils.go Normal file
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@@ -0,0 +1,82 @@
/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package util
import (
"github.com/gin-gonic/gin"
"net/http"
)
var MessageInvalidToken = "Invalid token."
var MessageInvalidCredentials = "Invalid credentials. Invalid username or password."
var MessageTokenAlreadyAssigned = "Access token already has a profile assigned."
var MessageAccessDenied = "Access denied."
var MessageProfileNotFound = "No such profile."
type YggdrasilError struct {
ErrorCode string `json:"error"`
ErrorMessage string `json:"errorMessage"`
Cause string `json:"cause,omitempty"`
Status int `json:"-"`
}
func (e YggdrasilError) Error() string {
return e.ErrorMessage
}
func NewIllegalArgumentError(msg string) (err YggdrasilError) {
err.ErrorCode = "IllegalArgumentException"
err.Status = http.StatusBadRequest
err.ErrorMessage = msg
return err
}
func NewForbiddenOperationError(msg string) (err YggdrasilError) {
err.ErrorCode = "ForbiddenOperationException"
err.Status = http.StatusForbidden
err.ErrorMessage = msg
return err
}
func HandleError(c *gin.Context, err error) {
switch x := err.(type) {
case YggdrasilError:
if x.Status == 0 {
x.Status = http.StatusForbidden
}
if x.Status == http.StatusNoContent {
c.Status(x.Status)
} else {
c.AbortWithStatusJSON(x.Status, x)
}
break
case *YggdrasilError:
if x.Status == 0 {
x.Status = http.StatusForbidden
}
if x.Status == http.StatusNoContent {
c.Status(x.Status)
} else {
c.AbortWithStatusJSON(x.Status, x)
}
break
default:
c.AbortWithStatusJSON(http.StatusForbidden, x.Error())
break
}
}

165
util/http_utils.go Normal file
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@@ -0,0 +1,165 @@
/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package util
import (
"bytes"
"encoding/json"
"io/ioutil"
"net/http"
)
func GetObject(url string, value interface{}) error {
resp, err := http.Get(url)
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode == http.StatusNoContent {
return &YggdrasilError{
Status: http.StatusNoContent,
ErrorCode: "IllegalArgumentException",
ErrorMessage: "Http No Content",
}
} else if resp.StatusCode/100 == 4 {
decoder := json.NewDecoder(resp.Body)
errResp := YggdrasilError{}
err = decoder.Decode(&errResp)
if err != nil {
return err
}
return errResp
} else {
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return err
}
return json.Unmarshal(body, value)
}
}
func GetForString(url string) (string, error) {
resp, err := http.Get(url)
if err != nil {
return "", err
}
defer resp.Body.Close()
if resp.StatusCode == http.StatusNoContent {
return "", nil
} else if resp.StatusCode/100 == 4 {
decoder := json.NewDecoder(resp.Body)
errResp := YggdrasilError{}
err = decoder.Decode(&errResp)
if err != nil {
return "", err
}
return "", errResp
} else {
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return "", err
}
return string(body), nil
}
}
func PostObject(url string, data interface{}, result interface{}) error {
buf := bytes.Buffer{}
encoder := json.NewEncoder(&buf)
err := encoder.Encode(data)
if err != nil {
return err
}
resp, err := http.Post(url, "application/json", &buf)
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode == http.StatusNoContent {
return &YggdrasilError{
Status: http.StatusNoContent,
ErrorCode: "IllegalArgumentException",
ErrorMessage: "Http No Content",
}
} else if resp.StatusCode/100 == 4 {
decoder := json.NewDecoder(resp.Body)
errResp := YggdrasilError{}
err = decoder.Decode(&errResp)
if err != nil {
return err
}
return errResp
} else {
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return err
}
return json.Unmarshal(body, result)
}
}
func PostObjectForError(url string, data interface{}) error {
buf := bytes.Buffer{}
encoder := json.NewEncoder(&buf)
err := encoder.Encode(data)
if err != nil {
return err
}
resp, err := http.Post(url, "application/json", &buf)
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode == http.StatusNoContent {
return nil
} else {
decoder := json.NewDecoder(resp.Body)
errResp := YggdrasilError{}
err = decoder.Decode(&errResp)
if err != nil {
return err
}
return errResp
}
}
func PostForString(url string, data []byte) (string, error) {
reader := bytes.NewReader(data)
resp, err := http.Post(url, "application/json", reader)
if err != nil {
return "", err
}
defer resp.Body.Close()
if resp.StatusCode == http.StatusNoContent {
return "", nil
} else if resp.StatusCode/100 == 4 {
decoder := json.NewDecoder(resp.Body)
errResp := YggdrasilError{}
err = decoder.Decode(&errResp)
if err != nil {
return "", err
}
return "", errResp
} else {
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return "", err
}
return string(body), nil
}
}

84
util/properties_utils.go Normal file
View File

@@ -0,0 +1,84 @@
/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package util
import (
"crypto"
"crypto/rand"
"crypto/rsa"
"crypto/sha1"
"encoding/base64"
"encoding/json"
"log"
)
type Property struct {
Name string
Value interface{}
}
type StringProperty struct {
Name string `json:"name,omitempty"`
Value string `json:"value,omitempty"`
}
// PrivateKey RSA PKCS8 Private Key
var PrivateKey *rsa.PrivateKey
func EncodeBase64(properties ...Property) (string, error) {
obj := make(map[string]interface{})
for _, property := range properties {
obj[property.Name] = property.Value
}
jsonBytes, err := json.Marshal(obj)
if err != nil {
return "", err
}
return base64.StdEncoding.EncodeToString(jsonBytes), nil
}
func Properties(sign bool, properties ...StringProperty) []map[string]string {
list := make([]map[string]string, 0, len(properties))
for _, property := range properties {
obj := map[string]string{
"name": property.Name,
"value": property.Value,
}
if sign {
err := error(nil)
obj["signature"], err = Sign(property.Value)
if err != nil {
log.Printf("无法签名字符串 '%s', 原因: %s", property.Value, err.Error())
}
}
list = append(list, obj)
}
return list
}
func Sign(value string) (string, error) {
if PrivateKey == nil {
panic("未初始化私钥")
}
sum := sha1.Sum([]byte(value))
sig, err := rsa.SignPKCS1v15(rand.Reader, PrivateKey, crypto.SHA1, sum[:])
if err != nil {
return "", err
}
return base64.StdEncoding.EncodeToString(sig), nil
}

37
util/uuid_utils.go Normal file
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@@ -0,0 +1,37 @@
/*
* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package util
import (
"encoding/hex"
"github.com/google/uuid"
)
func UnsignedString(u uuid.UUID) string {
var buf [32]byte
hex.Encode(buf[:], u[:])
return string(buf[:])
}
func ToUUID(str string) (uuid.UUID, error) {
return uuid.Parse(str)
}
func RandomUUID() string {
return UnsignedString(uuid.New())
}