Pac4j security module integration.

4 files changed, 154 insertions, 14 deletions

diff --git a/src/main/kotlin/pl/treksoft/kvision/remote/CallAgent.kt b/src/main/kotlin/pl/treksoft/kvision/remote/CallAgent.kt
index 7d9f4b05..4247b0b7 100644
--- a/src/main/kotlin/pl/treksoft/kvision/remote/CallAgent.kt
+++ b/src/main/kotlin/pl/treksoft/kvision/remote/CallAgent.kt
@@ -31,6 +31,11 @@ import kotlin.js.undefined
 import kotlin.js.JSON as NativeJSON
 
 /**
+ * HTTP status unauthorized (401).
+ */
+const val HTTP_UNAUTHORIZED = 401
+
+/**
  * An agent responsible for remote calls.
  */
 open class CallAgent {
@@ -73,7 +78,11 @@ open class CallAgent {
                             } else {
                                 errorText
                             }
-                            reject(Exception(message))
+                            if (xhr.status.toInt() == HTTP_UNAUTHORIZED) {
+                                reject(SecurityException(message))
+                            } else {
+                                reject(Exception(message))
+                            }
                         }
             })
         })
@@ -110,7 +119,11 @@ open class CallAgent {
                             } else {
                                 errorText
                             }
-                            reject(Exception(message))
+                            if (xhr.status.toInt() == HTTP_UNAUTHORIZED) {
+                                reject(SecurityException(message))
+                            } else {
+                                reject(Exception(message))
+                            }
                         }
                 this.beforeSend = beforeSend
             })
diff --git a/src/main/kotlin/pl/treksoft/kvision/remote/Jooby.kt b/src/main/kotlin/pl/treksoft/kvision/remote/Jooby.kt
index a5c580d6..cd62487a 100644
--- a/src/main/kotlin/pl/treksoft/kvision/remote/Jooby.kt
+++ b/src/main/kotlin/pl/treksoft/kvision/remote/Jooby.kt
@@ -21,6 +21,8 @@
  */
 package pl.treksoft.kvision.remote
 
+import kotlinx.serialization.Serializable
+
 /**
  * A Jooby based server.
  * Not used on the js platform.
@@ -32,3 +34,19 @@ actual open class JoobyServer
  * Not used on the js platform.
  */
 actual interface Request
+
+/**
+ * A user profile.
+ */
+@Serializable
+actual data class Profile(
+    val id: String? = null,
+    val username: String? = null,
+    val linkedId: String? = null,
+    val firstName: String? = null,
+    val familyName: String? = null,
+    val email: String? = null,
+    val displayName: String? = null,
+    val pictureUrl: String? = null,
+    val profileUrl: String? = null
+)
diff --git a/src/main/kotlin/pl/treksoft/kvision/remote/RemoteAgent.kt b/src/main/kotlin/pl/treksoft/kvision/remote/RemoteAgent.kt
index b0d74ece..ec1f8e94 100644
--- a/src/main/kotlin/pl/treksoft/kvision/remote/RemoteAgent.kt
+++ b/src/main/kotlin/pl/treksoft/kvision/remote/RemoteAgent.kt
@@ -57,7 +57,7 @@ open class RemoteAgent<out T>(val serviceManager: ServiceManager<T>) {
             try {
                 deserialize<RET>(it, RET::class.js.name)
             } catch (t: NonStandardTypeException) {
-                JSON.parse(RET::class.serializer(), it)
+                JSON.nonstrict.parse(RET::class.serializer(), it)
             }
         }
     }
@@ -72,7 +72,7 @@ open class RemoteAgent<out T>(val serviceManager: ServiceManager<T>) {
             try {
                 deserializeLists<RET>(it, RET::class.js.name)
             } catch (t: NonStandardTypeException) {
-                JSON.parse(RET::class.serializer().list, it)
+                JSON.nonstrict.parse(RET::class.serializer().list, it)
             }
         }
     }
@@ -92,7 +92,7 @@ open class RemoteAgent<out T>(val serviceManager: ServiceManager<T>) {
                 @Suppress("UNCHECKED_CAST")
                 deserialize<RET>(it, (RET::class as KClass<Any>).js.name)
             } catch (t: NonStandardTypeException) {
-                JSON.parse(RET::class.serializer(), it)
+                JSON.nonstrict.parse(RET::class.serializer(), it)
             }
         }
     }
@@ -111,7 +111,7 @@ open class RemoteAgent<out T>(val serviceManager: ServiceManager<T>) {
             try {
                 deserializeLists<RET>(it, RET::class.js.name)
             } catch (t: NonStandardTypeException) {
-                JSON.parse(RET::class.serializer().list, it)
+                JSON.nonstrict.parse(RET::class.serializer().list, it)
             }
         }
     }
@@ -131,7 +131,7 @@ open class RemoteAgent<out T>(val serviceManager: ServiceManager<T>) {
             try {
                 deserialize<RET>(it, RET::class.js.name)
             } catch (t: NonStandardTypeException) {
-                JSON.parse(RET::class.serializer(), it)
+                JSON.nonstrict.parse(RET::class.serializer(), it)
             }
         }
     }
@@ -151,7 +151,7 @@ open class RemoteAgent<out T>(val serviceManager: ServiceManager<T>) {
             try {
                 deserializeLists<RET>(it, RET::class.js.name)
             } catch (t: NonStandardTypeException) {
-                JSON.parse(RET::class.serializer().list, it)
+                JSON.nonstrict.parse(RET::class.serializer().list, it)
             }
         }
     }
@@ -173,7 +173,7 @@ open class RemoteAgent<out T>(val serviceManager: ServiceManager<T>) {
             try {
                 deserialize<RET>(it, RET::class.js.name)
             } catch (t: NonStandardTypeException) {
-                JSON.parse(RET::class.serializer(), it)
+                JSON.nonstrict.parse(RET::class.serializer(), it)
             }
         }
     }
@@ -195,7 +195,7 @@ open class RemoteAgent<out T>(val serviceManager: ServiceManager<T>) {
             try {
                 deserializeLists<RET>(it, RET::class.js.name)
             } catch (t: NonStandardTypeException) {
-                JSON.parse(RET::class.serializer().list, it)
+                JSON.nonstrict.parse(RET::class.serializer().list, it)
             }
         }
     }
@@ -224,7 +224,7 @@ open class RemoteAgent<out T>(val serviceManager: ServiceManager<T>) {
             try {
                 deserialize<RET>(it, RET::class.js.name)
             } catch (t: NonStandardTypeException) {
-                JSON.parse(RET::class.serializer(), it)
+                JSON.nonstrict.parse(RET::class.serializer(), it)
             }
         }
     }
@@ -253,7 +253,7 @@ open class RemoteAgent<out T>(val serviceManager: ServiceManager<T>) {
             try {
                 deserializeLists<RET>(it, RET::class.js.name)
             } catch (t: NonStandardTypeException) {
-                JSON.parse(RET::class.serializer().list, it)
+                JSON.nonstrict.parse(RET::class.serializer().list, it)
             }
         }
     }
@@ -287,7 +287,7 @@ open class RemoteAgent<out T>(val serviceManager: ServiceManager<T>) {
             try {
                 deserialize<RET>(it, RET::class.js.name)
             } catch (t: NonStandardTypeException) {
-                JSON.parse(RET::class.serializer(), it)
+                JSON.nonstrict.parse(RET::class.serializer(), it)
             }
         }
     }
@@ -321,7 +321,7 @@ open class RemoteAgent<out T>(val serviceManager: ServiceManager<T>) {
             try {
                 deserializeLists<RET>(it, RET::class.js.name)
             } catch (t: NonStandardTypeException) {
-                JSON.parse(RET::class.serializer().list, it)
+                JSON.nonstrict.parse(RET::class.serializer().list, it)
             }
         }
     }
diff --git a/src/main/kotlin/pl/treksoft/kvision/remote/Security.kt b/src/main/kotlin/pl/treksoft/kvision/remote/Security.kt
new file mode 100644
index 00000000..6373b27a
--- /dev/null
+++ b/src/main/kotlin/pl/treksoft/kvision/remote/Security.kt
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2017-present Robert Jaros
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package pl.treksoft.kvision.remote
+
+import kotlinx.coroutines.experimental.Deferred
+import kotlinx.coroutines.experimental.asDeferred
+import kotlinx.serialization.Serializable
+import pl.treksoft.kvision.utils.obj
+
+/**
+ * A security exception.
+ */
+class SecurityException(message: String) : Exception(message)
+
+/**
+ * Username and password credentials.
+ */
+@Serializable
+data class Credentials(val username: String? = null, val password: String? = null)
+
+/**
+ * Pac4j form login dispatcher.
+ */
+class LoginService {
+    val loginAgent = CallAgent()
+
+    /**
+     * Login with Pac4j FormClient.
+     * @param credentials username and password credentials
+     */
+    fun login(credentials: Credentials): Deferred<Boolean> =
+        loginAgent.remoteCall("callback?client_name=FormClient", obj {
+            this.username = credentials.username
+            this.password = credentials.password
+        }, HttpMethod.POST, "application/x-www-form-urlencoded").then { _: dynamic -> true }.asDeferred()
+}
+
+/**
+ * Pac4j form login dispatcher.
+ */
+@Suppress("EXPERIMENTAL_FEATURE_WARNING")
+abstract class SecurityMgr {
+
+    private var isLoggedIn = false
+
+    /**
+     * Executes given block of code after successful authentication.
+     * @param block a block of code
+     */
+    suspend fun <T> withAuth(block: suspend () -> T): T {
+        return try {
+            block().also {
+                if (!isLoggedIn) {
+                    isLoggedIn = true
+                    afterLogin()
+                }
+            }
+        } catch (e: SecurityException) {
+            afterError()
+            isLoggedIn = false
+            while (!isLoggedIn) {
+                try {
+                    login().await()
+                    isLoggedIn = true
+                    afterLogin()
+                } catch (e: SecurityException) {
+                    console.log(e)
+                }
+            }
+            block()
+        }
+    }
+
+    /**
+     * Login user.
+     * @return true if login is successful
+     * @throws SecurityException if login is not successful
+     */
+    abstract suspend fun login(): Deferred<Boolean>
+
+    /**
+     * Method called after successful login.
+     */
+    open suspend fun afterLogin() {}
+
+    /**
+     * Method called after error.
+     */
+    open suspend fun afterError() {}
+}