Add Okta OAuth provider (#729)

web/src/ProviderEditPage.js

@@ -382,7 +382,7 @@ class ProviderEditPage extends React.Component {
           )
         }
         {
-          this.state.provider.type !== "Adfs" &&  this.state.provider.type !== "Casdoor" ? null : (
+          this.state.provider.type !== "Adfs" &&  this.state.provider.type !== "Casdoor" && this.state.provider.type !== "Okta" ? null : (
             <Row style={{marginTop: '20px'}} >
             <Col style={{marginTop: '5px'}} span={2}>
               {Setting.getLabel(i18next.t("provider:Domain"), i18next.t("provider:Domain - Tooltip"))} :

web/src/Setting.js

@@ -550,6 +550,7 @@ export function getProviderTypeOptions(category) {
         {id: 'AzureAD', name: 'AzureAD'},
         {id: 'Slack', name: 'Slack'},
         {id: 'Steam', name: 'Steam'},
+        {id: 'Okta', name: 'Okta'},
         {id: 'Custom', name: 'Custom'},
       ]
     );

web/src/auth/LoginPage.js

@@ -43,6 +43,7 @@ import AppleLoginButton from "./AppleLoginButton"
 import AzureADLoginButton from "./AzureADLoginButton";
 import SlackLoginButton from "./SlackLoginButton";
 import SteamLoginButton from "./SteamLoginButton";
+import OktaLoginButton from "./OktaLoginButton";
 import CustomGithubCorner from "../CustomGithubCorner";
 import {CountDownInput} from "../common/CountDownInput";
 
@@ -278,6 +279,8 @@ class LoginPage extends React.Component {
       return <SlackLoginButton text={text} align={"center"} />
     } else if (type === "Steam") {
       return <SteamLoginButton text={text} align={"center"} />
+    } else if (type === "Okta") {
+      return <OktaLoginButton text={text} align={"center"} />
     }
 
     return text;

web/src/auth/OktaLoginButton.js

@@ -0,0 +1,32 @@
+// Copyright 2022 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import {createButton} from "react-social-login-buttons";
+import {StaticBaseUrl} from "../Setting";
+
+function Icon({ width = 24, height = 24, color }) {
+    return <img src={`${StaticBaseUrl}/buttons/okta.svg`} alt="Sign in with Okta" style={{width: 24, height: 24}} />;
+}
+
+const config = {
+    text: "Sign in with Okta",
+    icon: Icon,
+    iconFormat: name => `fa fa-${name}`,
+    style: {background: "#ffffff", color: "#000000"},
+    activeStyle: {background: "#ededee"},
+};
+
+const OktaLoginButton = createButton(config);
+
+export default OktaLoginButton;

web/src/auth/Provider.js

@@ -107,6 +107,10 @@ const authInfo = {
   Steam: {
     endpoint: "https://steamcommunity.com/openid/login",
   },
+  Okta: {
+    scope: "openid%20profile%20email",
+    endpoint: "http://example.com",
+  },
   Custom: {
     endpoint: "https://example.com/",
   },
@@ -230,6 +234,8 @@ export function getAuthUrl(application, provider, method) {
     return `${endpoint}?client_id=${provider.clientId}&redirect_uri=${redirectUri}&state=${state}&response_type=code&scope=${scope}`;
   } else if (provider.type === "Steam") {
     return `${endpoint}?openid.claimed_id=http://specs.openid.net/auth/2.0/identifier_select&openid.identity=http://specs.openid.net/auth/2.0/identifier_select&openid.mode=checkid_setup&openid.ns=http://specs.openid.net/auth/2.0&openid.realm=${window.location.origin}&openid.return_to=${redirectUri}?state=${state}`;
+  } else if (provider.type === "Okta") {
+    return `${provider.domain}/v1/authorize?client_id=${provider.clientId}&redirect_uri=${redirectUri}&state=${state}&response_type=code&scope=${scope}`;
   } else if (provider.type === "Custom") {
     return `${provider.customAuthUrl}?client_id=${provider.clientId}&redirect_uri=${redirectUri}&scope=${provider.customScope}&response_type=code&state=${state}`;
   }