Merge pull request #1 from Biruntha/master

Okta keymanager implementation

.gitignore

@@ -1,5 +1,6 @@
 # Compiled class file
 *.class
+target
 
 # Log file
 *.log
@@ -18,5 +19,14 @@
 *.tar.gz
 *.rar
 
+# ignore Intellij-IDEA files
+*.iml
+*.ipr
+*.iws
+*.settings
+*.project
+*.idea
+.DS_Store
+
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*

README.md

@@ -1 +1,9 @@
-# apim-keymanager-okta
+# Integrate Okta as a third party key manager for APIM
+
+This Okta keymanager implementation allows you to integrate the WSO2 API Store with an external Identity and Access Management (IAM) 
+by using the Okta OAuth Authorization Server, which is an open source IAM, to manage the OAuth clients and tokens required 
+by WSO2 API Manager. We have a sample client implementation that consumes APIs exposed by Okta OAuth.
+
+## Build
+
+mvn clean install

pom.xml

@@ -0,0 +1,106 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ ~  Copyright (c) 2018, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ ~
+ ~  WSO2 Inc. licenses this file to you 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.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>org.wso2.okta.client</groupId>
+    <artifactId>OKTA-OAuth-Client</artifactId>
+    <version>1.0.0-SNAPSHOT</version>
+    <packaging>bundle</packaging>
+    <name>Client implementation to integrate with Okta Authorization Server</name>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.googlecode.json-simple</groupId>
+            <artifactId>json-simple</artifactId>
+            <version>${json.simple.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.wso2.carbon.apimgt</groupId>
+            <artifactId>org.wso2.carbon.apimgt.impl</artifactId>
+            <version>${carbon.apimgt.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.wso2.carbon.apimgt</groupId>
+            <artifactId>org.wso2.carbon.apimgt.gateway</artifactId>
+            <version>${carbon.apimgt.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <version>${gson.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.wso2.carbon.apimgt</groupId>
+            <artifactId>org.wso2.carbon.apimgt.keymgt</artifactId>
+            <version>${carbon.apimgt.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.wso2.carbon.apimgt</groupId>
+            <artifactId>org.wso2.carbon.apimgt.hostobjects</artifactId>
+            <version>${carbon.apimgt.version}</version>
+        </dependency>
+    </dependencies>
+    <repositories>
+        <repository>
+            <id>wso2-nexus</id>
+            <name>WSO2 internal Repository</name>
+            <url>http://maven.wso2.org/nexus/content/groups/wso2-public/</url>
+            <releases>
+                <enabled>true</enabled>
+                <updatePolicy>daily</updatePolicy>
+                <checksumPolicy>ignore</checksumPolicy>
+            </releases>
+        </repository>
+    </repositories>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.felix</groupId>
+                <artifactId>maven-bundle-plugin</artifactId>
+                <version>1.4.0</version>
+                <extensions>true</extensions>
+                <configuration>
+                    <instructions>
+                        <Bundle-SymbolicName>${project.artifactId}</Bundle-SymbolicName>
+                        <Bundle-Name>${project.artifactId}</Bundle-Name>
+                        <Export-Package>
+                            org.wso2.okta.client.*;version="1.0.0"
+                        </Export-Package>
+                    </instructions>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>2.3.2</version>
+                <configuration>
+                    <source>1.6</source>
+                    <target>1.6</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+    <properties>
+        <carbon.apimgt.version>6.1.66</carbon.apimgt.version>
+        <json.simple.version>1.1</json.simple.version>
+        <gson.version>2.1</gson.version>
+    </properties>
+</project>

src/main/java/org/wso2/okta/client/OktaConstants.java

@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2018, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ * WSO2 Inc. licenses this file to you 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.
+ */
+package org.wso2.okta.client;
+
+/**
+ * This class will hold constants related to Okta key manager implementation.
+ */
+public class OktaConstants {
+    public static final String UTF_8 = "UTF-8";
+    public static final String HTTP_HEADER_CONTENT_TYPE = "Content-Type";
+    public static final String APPLICATION_JSON = "application/json";
+    public static final String AUTHORIZATION = "Authorization";
+    public static final String AUTHENTICATION_BASIC = "Basic ";
+    public static final String AUTHENTICATION_SSWS = "SSWS ";
+    public static final String CLIENT_ENDPOINT = "/oauth2/v1/clients";
+    public static final String INTROSPECT_ENDPOINT = "/v1/introspect";
+    public static final String TOKEN_ENDPOINT = "/v1/token";
+    public static final String REVOKE_ENDPOINT = "/v1/revoke";
+    public static final String OAUTH2 = "/oauth2/";
+    public static final String GRANT_TYPE = "grant_type";
+    public static final String GRANT_TYPE_CLIENT_CREDENTIALS = "client_credentials";
+    public static final String ACCESS_TOKEN_SCOPE = "scope";
+    public static final String REGISTRAION_API_KEY = "apiKey";
+    public static final String CLIENT_REDIRECT_URIS = "redirect_uris";
+    public static final String CLIENT_GRANT_TYPES = "grant_types";
+    public static final String CLIENT_NAME = "client_name";
+    public static final String CLIENT_ID = "client_id";
+    public static final String CLIENT_SECRET = "client_secret";
+    public static final String CLIENT_TOKEN_ENDPOINT_AUTH_METHOD = "token_endpoint_auth_method";
+    public static final String CLIENT_APPLICATION_TYPE = "application_type";
+    public static final String CLIENT_RESPONSE_TYPES = "response_types";
+    public static final String CLIENT_LOGO_URI = "logo_uri";
+    public static final String CLIENT_URI = "client_uri";
+    public static final String CLIENT_INITIATE_LOGIN_URI = "initiate_login_uri";
+    public static final String CLIENT_POST_LOGOUT_REDIRECT_URIS = "post_logout_redirect_uris";
+    public static final String CLIENT_ID_ISSUED_AT = "client_id_issued_at";
+    public static final String CLIENT_SECRET_EXPIRES_AT = "client_secret_expires_at";
+    public static final String TOKEN = "token";
+    public static final String TOKEN_TYPE_HINT = "token_type_hint";
+    public static final String ACCESS_TOKEN = "access_token";
+    public static final String ACCESS_TOKEN_ACTIVE = "active";
+    public static final String ACCESS_TOKEN_EXPIRY = "exp";
+    public static final String ACCESS_TOKEN_ISSUED = "iat";
+    public static final String ACCESS_TOKEN_USER_NAME = "username";
+    public static final String ACCESS_TOKEN_AUDIENCE = "aud";
+    public static final String ACCESS_TOKEN_ISSUER = "iss";
+    public static final String ACCESS_TOKEN_TYPE = "token_type";
+    public static final String ACCESS_TOKEN_SUBJECT = "sub";
+    public static final String ACCESS_TOKEN_USER_ID = "uid";
+    public static final String ACCESS_TOKEN_IDENTIFIER = "jti";
+    public static final String ACCESS_TOKEN_EXPIRES_IN = "expires_in";
+    public static final String OKTA_INSTANCE_URL = "oktaInstanceUrl";
+    public static final String OKTA_AUTHORIZATION_SERVER_ID = "authorizationServerId";
+    public static final String TOKEN_SCOPE = "tokenScope";
+    public static final String TOKEN_GRANT_TYPE = "tokenGrantType";
+    public static final String UPDATE_APP_IN_OKTA = "updateAppInOkta";
+    public static final String ERROR_WHILE_PARSE_RESPONSE = "Error while parsing response json";
+    public static final String ERROR_ENCODING_METHOD_NOT_SUPPORTED = "Encoding method is not supported";
+    public static final String ERROR_COULD_NOT_READ_HTTP_ENTITY = "Could not read http entity for response";
+    public static final String STRING_FORMAT = "%s %s";
+    public static final String ERROR_OCCURRED_WHILE_READ_OR_CLOSE_BUFFER_READER = "Error has occurred while reading " +
+            "or closing buffer reader";
+
+    OktaConstants() {
+    }
+}