Webauthn support (#18)

* webauthn support

- Added parsing for webauthn challenges
- Added validateCheck variant for webauthn
- Replaced URLHttpConnection with okhttp3
- Rename various classes for better distinction between sdk and plugin

* disable logging of headers

* licenses and comments

* optimize imports

* add okhttp3 dependency to packaging

Author: nilsbehlen

.gitignore

@@ -1,3 +1,4 @@
 target/
 .idea/
 sdk-java.iml
+dependency-reduced-pom.xml

pom.xml

@@ -13,30 +13,46 @@
     </properties>
 
     <build>
+        <finalName>sdk-java</finalName>
         <plugins>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>2.12.4</version>
                 <configuration>
-                    <source>8</source>
-                    <target>8</target>
+                    <skipTests>false</skipTests>
                 </configuration>
             </plugin>
 
             <plugin>
-                <artifactId>maven-assembly-plugin</artifactId>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.2.4</version>
                 <executions>
                     <execution>
                         <phase>package</phase>
                         <goals>
-                            <goal>single</goal>
+                            <goal>shade</goal>
                         </goals>
+                        <configuration>
+                            <artifactSet>
+                                <includes>
+                                    <include>com.google.code.gson</include>
+                                    <include>com.squareup.okhttp3</include>
+                                </includes>
+                            </artifactSet>
+                        </configuration>
                     </execution>
                 </executions>
+            </plugin>
+
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.1</version>
                 <configuration>
-                    <descriptorRefs>
-                        <descriptorRef>jar-with-dependencies</descriptorRef>
-                    </descriptorRefs>
+                    <source>1.8</source>
+                    <target>1.8</target>
                 </configuration>
             </plugin>
         </plugins>
@@ -50,6 +66,12 @@
             <scope>test</scope>
         </dependency>
 
+        <dependency>
+            <groupId>com.squareup.okhttp3</groupId>
+            <artifactId>okhttp</artifactId>
+            <version>4.9.0</version>
+        </dependency>
+
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>

src/main/java/org/privacyidea/Challenge.java

@@ -1,3 +1,18 @@
+/*
+ * Copyright 2021 NetKnights GmbH - [email protected]
+ *
+ * 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.
+ */
 package org.privacyidea;
 
 import java.util.ArrayList;