LightPIT: src/main/kotlin/de/uapcore/lightpit/servlet/UsersServlet.kt@55ca6cafc3dd

     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.AbstractServlet

    29 import de.uapcore.lightpit.HttpRequest

    30 import de.uapcore.lightpit.ValidatedValue

    31 import de.uapcore.lightpit.ValidationError

    32 import de.uapcore.lightpit.dao.DataAccessObject

    33 import de.uapcore.lightpit.entities.User

    34 import de.uapcore.lightpit.viewmodel.UserEditView

    35 import de.uapcore.lightpit.viewmodel.UsersView

    36 import jakarta.servlet.annotation.WebServlet

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

    39 class UsersServlet : AbstractServlet() {

    41     init {

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

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

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

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

    46     }

    48     private val list = "users"

    49     private val form = "user-form"

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

    52         with(http) {

    53             view = UsersView(dao.listUsers())

    54             render(list)

    55         }

    56     }

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

    59         with(http) {

    60             view = UserEditView(User(-1))

    61             render(form)

    62         }

    63     }

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

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

    67         if (id == null) {

    68             http.response.sendError(404)

    69         } else {

    70             val user = dao.findUser(id)

    71             if (user == null) {

    72                 http.response.sendError(404)

    73             } else {

    74                 with(http) {

    75                     view = UserEditView(user)

    76                     render(form)

    77                 }

    78             }

    79         }

    80     }

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

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

    84         if (id == null) {

    85             http.response.sendError(400)

    86             return

    87         }

    89         val user = User(id)

    90         with(user) {

    91             givenname = http.param("givenname")

    92             lastname = http.param("lastname")

    93             mail = http.param("mail")

    94         }

    96         if (user.id > 0) {

    97             dao.updateUser(user)

    98             http.renderCommit("users/")

    99         } else {

   100             val errorMessages = mutableListOf<String>()

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

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

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

   104                 else ValidatedValue(it)

   105             }, "", errorMessages)

   107             if (errorMessages.isEmpty()) {

   108                 dao.insertUser(user)

   109                 http.renderCommit("users/")

   110             } else {

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

   112                 http.render(form)

   113             }

   114         }

   115     }

   116 }

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