LightPIT: src/main/kotlin/de/uapcore/lightpit/servlet/UsersServlet.kt@028792eda9b7

     1 /*

     2  * Copyright 2021 Mike Becker. All rights reserved.

     3  *

     4  * Redistribution and use in source and binary forms, with or without

     5  * modification, are permitted provided that the following conditions are met:

     6  *

     7  * 1. Redistributions of source code must retain the above copyright

     8  * notice, this list of conditions and the following disclaimer.

     9  *

    10  * 2. Redistributions in binary form must reproduce the above copyright

    11  * notice, this list of conditions and the following disclaimer in the

    12  * documentation and/or other materials provided with the distribution.

    13  *

    14  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

    15  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

    17  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE

    18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

    19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

    20  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER

    21  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,

    22  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

    23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    24  */

    26 package de.uapcore.lightpit.servlet

    28 import de.uapcore.lightpit.*

    29 import de.uapcore.lightpit.dao.DataAccessObject

    30 import de.uapcore.lightpit.entities.User

    31 import de.uapcore.lightpit.viewmodel.UserEditView

    32 import de.uapcore.lightpit.viewmodel.UsersView

    33 import javax.servlet.annotation.WebServlet

    35 @WebServlet(urlPatterns = ["/users/*"])

    36 class UsersServlet : AbstractServlet(), LoggingTrait {

    38     init {

    39         get("/", this::index)

    40         get("/-/create", this::create)

    41         get("/%userid/edit", this::edit)

    42         post("/-/commit", this::commit)

    43     }

    45     private val list = "users"

    46     private val form = "user-form"

    48     private fun index(http: HttpRequest, dao: DataAccessObject) {

    49         with(http) {

    50             view = UsersView(dao.listUsers())

    51             render(list)

    52         }

    53     }

    55     private fun create(http: HttpRequest, dao: DataAccessObject) {

    56         with(http) {

    57             view = UserEditView(User(-1))

    58             render(form)

    59         }

    60     }

    62     private fun edit(http: HttpRequest, dao: DataAccessObject) {

    63         val id = http.pathParams["userid"]?.toIntOrNull()

    64         if (id == null) {

    65             http.response.sendError(404)

    66         } else {

    67             val user = dao.findUser(id)

    68             if (user == null) {

    69                 http.response.sendError(404)

    70             } else {

    71                 with(http) {

    72                     view = UserEditView(user)

    73                     render(form)

    74                 }

    75             }

    76         }

    77     }

    79     private fun commit(http: HttpRequest, dao: DataAccessObject) {

    80         val id = http.param("userid")?.toIntOrNull()

    81         if (id == null) {

    82             http.response.sendError(400)

    83             return

    84         }

    86         val user = User(id)

    87         with(user) {

    88             givenname = http.param("givenname")

    89             lastname = http.param("lastname")

    90             mail = http.param("mail")

    91         }

    93         if (user.id > 0) {

    94             logger().info("Update user with id ${user.id}.")

    95             dao.updateUser(user)

    96             http.renderCommit("users/")

    97         } else {

    98             val errorMessages = mutableListOf<String>()

    99             user.username = http.param("username", {

   100                 if (it == null) ValidationError("validation.username.null")

   101                 else if (dao.findUserByName(it) != null) ValidationError("validation.username.unique")

   102                 else ValidatedValue(it)

   103             }, "", errorMessages)

   105             if (errorMessages.isEmpty()) {

   106                 logger().info("Insert user ${user.username}.")

   107                 dao.insertUser(user)

   108                 http.renderCommit("users/")

   109             } else {

   110                 http.view = UserEditView(user).apply { this.errorMessages = errorMessages }

   111                 http.render(form)

   112             }

   113         }

   114     }

   115 }

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