<%#
 Copyright 2013-2021 the original author or authors from the JHipster project.

 This file is part of the JHipster project, see https://www.jhipster.tech/
 for more information.

 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

      https://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 <%= packageName %>.config;

import tech.jhipster.config.JHipsterConstants;
import tech.jhipster.config.JHipsterProperties;
<%_ if (devDatabaseTypeH2Any) { _%>
import org.h2.server.web.WebServlet;
<%_ } _%>
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
<%_ if (!skipClient) { _%>
import org.springframework.boot.web.embedded.undertow.UndertowServletWebServerFactory;
<%_ } _%>
import org.springframework.http.HttpHeaders;
import org.springframework.mock.env.MockEnvironment;
import org.springframework.mock.web.MockServletContext;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;

import javax.servlet.*;
<%_ if (!skipClient) { _%>
import java.io.File;
<%_ } _%>
import java.util.*;

<%_ if (!skipClient) { _%>
import static org.assertj.core.api.Assertions.assertThat;
<%_ } _%>
import static org.assertj.core.api.Assertions.assertThatCode;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.Mockito.*;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.options;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.header;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

/**
 * Unit tests for the {@link WebConfigurer} class.
 */
class WebConfigurerTest {

    private WebConfigurer webConfigurer;

    private MockServletContext servletContext;

    private MockEnvironment env;

    private JHipsterProperties props;

    @BeforeEach
    public void setup() {
        servletContext = spy(new MockServletContext());
        doReturn(mock(FilterRegistration.Dynamic.class))
            .when(servletContext).addFilter(anyString(), any(Filter.class));
        doReturn(mock(ServletRegistration.Dynamic.class))
            .when(servletContext).addServlet(anyString(), any(Servlet.class));

        env = new MockEnvironment();
        props = new JHipsterProperties();

        webConfigurer = new WebConfigurer(env, props);
    }

    @Test
    void shouldStartUpProdServletContext() throws ServletException {
        env.setActiveProfiles(JHipsterConstants.SPRING_PROFILE_PRODUCTION);

        assertThatCode(() -> webConfigurer.onStartup(servletContext)).doesNotThrowAnyException();
<%_ if (devDatabaseTypeH2Any) { _%>
        verify(servletContext, never()).addServlet(eq("H2Console"), any(WebServlet.class));
<%_ } _%>
    }

    @Test
    void shouldStartUpDevServletContext() throws ServletException {
        env.setActiveProfiles(JHipsterConstants.SPRING_PROFILE_DEVELOPMENT);

        assertThatCode(() -> webConfigurer.onStartup(servletContext)).doesNotThrowAnyException();
<%_ if (devDatabaseTypeH2Any) { _%>
        verify(servletContext).addServlet(eq("H2Console"), any(WebServlet.class));
<%_ } _%>
    }

<%_ if (!skipClient) { _%>
    @Test
    void shouldCustomizeServletContainer() {
        env.setActiveProfiles(JHipsterConstants.SPRING_PROFILE_PRODUCTION);
        UndertowServletWebServerFactory container = new UndertowServletWebServerFactory();
        webConfigurer.customize(container);
        assertThat(container.getMimeMappings().get("abs")).isEqualTo("audio/x-mpeg");
        assertThat(container.getMimeMappings().get("html")).isEqualTo("text/html");
        assertThat(container.getMimeMappings().get("json")).isEqualTo("application/json");
        if (container.getDocumentRoot() != null) {
            assertThat(container.getDocumentRoot()).isEqualTo(new File("<%= CLIENT_DIST_DIR %>"));
        }
    }

<%_ } _%>
    @Test
    void shouldCorsFilterOnApiPath() throws Exception {
        props.getCors().setAllowedOrigins(Collections.singletonList("other.domain.com"));
        props.getCors().setAllowedMethods(Arrays.asList("GET", "POST", "PUT", "DELETE"));
        props.getCors().setAllowedHeaders(Collections.singletonList("*"));
        props.getCors().setMaxAge(1800L);
        props.getCors().setAllowCredentials(true);

        MockMvc mockMvc = MockMvcBuilders.standaloneSetup(new WebConfigurerTestController())
            .addFilters(webConfigurer.corsFilter())
            .build();

        mockMvc.perform(
            options("/api/test-cors")
                .header(HttpHeaders.ORIGIN, "other.domain.com")
                .header(HttpHeaders.ACCESS_CONTROL_REQUEST_METHOD, "POST"))
            .andExpect(status().isOk())
            .andExpect(header().string(HttpHeaders.ACCESS_CONTROL_ALLOW_ORIGIN, "other.domain.com"))
            .andExpect(header().string(HttpHeaders.VARY, "Origin"))
            .andExpect(header().string(HttpHeaders.ACCESS_CONTROL_ALLOW_METHODS, "GET,POST,PUT,DELETE"))
            .andExpect(header().string(HttpHeaders.ACCESS_CONTROL_ALLOW_CREDENTIALS, "true"))
            .andExpect(header().string(HttpHeaders.ACCESS_CONTROL_MAX_AGE, "1800"));

        mockMvc
            .perform(get("/api/test-cors").header(HttpHeaders.ORIGIN, "other.domain.com"))
            .andExpect(status().isOk())
            .andExpect(header().string(HttpHeaders.ACCESS_CONTROL_ALLOW_ORIGIN, "other.domain.com"));
    }

    @Test
    void shouldCorsFilterOnOtherPath() throws Exception {
        props.getCors().setAllowedOrigins(Collections.singletonList("*"));
        props.getCors().setAllowedMethods(Arrays.asList("GET", "POST", "PUT", "DELETE"));
        props.getCors().setAllowedHeaders(Collections.singletonList("*"));
        props.getCors().setMaxAge(1800L);
        props.getCors().setAllowCredentials(true);

        MockMvc mockMvc = MockMvcBuilders.standaloneSetup(new WebConfigurerTestController()).addFilters(webConfigurer.corsFilter()).build();

        mockMvc
            .perform(get("/test/test-cors").header(HttpHeaders.ORIGIN, "other.domain.com"))
            .andExpect(status().isOk())
            .andExpect(header().doesNotExist(HttpHeaders.ACCESS_CONTROL_ALLOW_ORIGIN));
    }

    @Test
    void shouldCorsFilterDeactivatedForNullAllowedOrigins() throws Exception {
        props.getCors().setAllowedOrigins(null);

        MockMvc mockMvc = MockMvcBuilders.standaloneSetup(new WebConfigurerTestController())
            .addFilters(webConfigurer.corsFilter())
            .build();

        mockMvc
            .perform(get("/api/test-cors").header(HttpHeaders.ORIGIN, "other.domain.com"))
            .andExpect(status().isOk())
            .andExpect(header().doesNotExist(HttpHeaders.ACCESS_CONTROL_ALLOW_ORIGIN));
    }

    @Test
    void shouldCorsFilterDeactivatedForEmptyAllowedOrigins() throws Exception {
        props.getCors().setAllowedOrigins(new ArrayList<>());

        MockMvc mockMvc = MockMvcBuilders.standaloneSetup(new WebConfigurerTestController())
            .addFilters(webConfigurer.corsFilter())
            .build();

        mockMvc
            .perform(get("/api/test-cors").header(HttpHeaders.ORIGIN, "other.domain.com"))
            .andExpect(status().isOk())
            .andExpect(header().doesNotExist(HttpHeaders.ACCESS_CONTROL_ALLOW_ORIGIN));
    }
}