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<template>
<div v-show="ssoVisible" class="form-cont">
<!-- 应用名 -->
<LoginFormTitle style="width: 100%" />
<el-tabs class="form" style="float: none" value="uname">
<el-tab-pane :label="client.name" name="uname" />
</el-tabs>
<div>
<el-form :model="formData" class="login-form">
<!-- 授权范围的选择 -->
此第三方应用请求获得以下权限:
<el-form-item prop="scopes">
<el-checkbox-group v-model="formData.scopes">
<el-checkbox
v-for="scope in queryParams.scopes"
:key="scope"
:label="scope"
style="display: block; margin-bottom: -10px"
>
{{ formatScope(scope) }}
</el-checkbox>
</el-checkbox-group>
</el-form-item>
<!-- 下方的登录按钮 -->
<el-form-item class="w-1/1">
<el-button
:loading="formLoading"
class="w-6/10"
type="primary"
@click.prevent="handleAuthorize(true)"
>
<span v-if="!formLoading">同意授权</span>
<span v-else>授 权 中...</span>
</el-button>
<el-button class="w-3/10" @click.prevent="handleAuthorize(false)">拒绝</el-button>
</el-form-item>
</el-form>
</div>
</div>
</template>
<script lang="ts" setup>
import LoginFormTitle from './LoginFormTitle.vue'
import * as OAuth2Api from '@/api/login/oauth2'
import { LoginStateEnum, useLoginState } from './useLogin'
import type { RouteLocationNormalizedLoaded } from 'vue-router'
defineOptions({ name: 'SSOLogin' })
const route = useRoute() // 路由
const { currentRoute } = useRouter() // 路由
const { getLoginState, setLoginState } = useLoginState()
const client = ref({
// 客户端信息
name: '',
logo: ''
})
interface queryType {
responseType: string
clientId: string
redirectUri: string
state: string
scopes: string[]
}
const queryParams = reactive<queryType>({
// URL 上的 client_id、scope 等参数
responseType: '',
clientId: '',
redirectUri: '',
state: '',
scopes: [] // 优先从 query 参数获取;如果未传递,从后端获取
})
const ssoVisible = computed(() => unref(getLoginState) === LoginStateEnum.SSO) // 是否展示 SSO 登录的表单
interface formType {
scopes: string[]
}
const formData = reactive<formType>({
scopes: [] // 已选中的 scope 数组
})
const formLoading = ref(false) // 表单是否提交中
/** 初始化授权信息 */
const init = async () => {
// 防止在没有登录的情况下循环弹窗
if (typeof route.query.client_id === 'undefined') return
// 解析参数
// 例如说【自动授权不通过】:client_id=default&redirect_uri=https%3A%2F%2Fwww.iocoder.cn&response_type=code&scope=user.read%20user.write
// 例如说【自动授权通过】:client_id=default&redirect_uri=https%3A%2F%2Fwww.iocoder.cn&response_type=code&scope=user.read
queryParams.responseType = route.query.response_type as string
queryParams.clientId = route.query.client_id as string
queryParams.redirectUri = route.query.redirect_uri as string
queryParams.state = route.query.state as string
if (route.query.scope) {
queryParams.scopes = (route.query.scope as string).split(' ')
}
// 如果有 scope 参数,先执行一次自动授权,看看是否之前都授权过了。
if (queryParams.scopes.length > 0) {
const data = await doAuthorize(true, queryParams.scopes, [])
if (data) {
location.href = data
return
}
}
// 获取授权页的基本信息
const data = await OAuth2Api.getAuthorize(queryParams.clientId)
client.value = data.client
// 解析 scope
let scopes
// 1.1 如果 params.scope 非空,则过滤下返回的 scopes
if (queryParams.scopes.length > 0) {
scopes = []
for (const scope of data.scopes) {
if (queryParams.scopes.indexOf(scope.key) >= 0) {
scopes.push(scope)
}
}
// 1.2 如果 params.scope 为空,则使用返回的 scopes 设置它
} else {
scopes = data.scopes
for (const scope of scopes) {
queryParams.scopes.push(scope.key)
}
}
// 生成已选中的 checkedScopes
for (const scope of scopes) {
if (scope.value) {
formData.scopes.push(scope.key)
}
}
}
/** 处理授权的提交 */
const handleAuthorize = async (approved) => {
// 计算 checkedScopes + uncheckedScopes
let checkedScopes
let uncheckedScopes
if (approved) {
// 同意授权,按照用户的选择
checkedScopes = formData.scopes
uncheckedScopes = queryParams.scopes.filter((item) => checkedScopes.indexOf(item) === -1)
} else {
// 拒绝,则都是取消
checkedScopes = []
uncheckedScopes = queryParams.scopes
}
// 提交授权的请求
formLoading.value = true
try {
const data = await doAuthorize(false, checkedScopes, uncheckedScopes)
if (!data) {
return
}
location.href = data
} finally {
formLoading.value = false
}
}
/** 调用授权 API 接口 */
const doAuthorize = (autoApprove, checkedScopes, uncheckedScopes) => {
return OAuth2Api.authorize(
queryParams.responseType,
queryParams.clientId,
queryParams.redirectUri,
queryParams.state,
autoApprove,
checkedScopes,
uncheckedScopes
)
}
/** 格式化 scope 文本 */
const formatScope = (scope) => {
// 格式化 scope 授权范围,方便用户理解。
// 这里仅仅是一个 demo,可以考虑录入到字典数据中,例如说字典类型 "system_oauth2_scope",它的每个 scope 都是一条字典数据。
switch (scope) {
case 'user.read':
return '访问你的个人信息'
case 'user.write':
return '修改你的个人信息'
default:
return scope
}
}
/** 监听当前路由为 SSOLogin 时,进行数据的初始化 */
watch(
() => currentRoute.value,
(route: RouteLocationNormalizedLoaded) => {
if (route.name === 'SSOLogin') {
setLoginState(LoginStateEnum.SSO)
init()
}
},
{ immediate: true }
)
</script>