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/*
 * Copyright 2015 the original author or authors.
 *
 * 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 com.jayway.restassured.module.mockmvc.internal;

import com.jayway.restassured.config.EncoderConfig;
import com.jayway.restassured.config.HeaderConfig;
import com.jayway.restassured.config.LogConfig;
import com.jayway.restassured.config.RestAssuredConfig;
import com.jayway.restassured.filter.log.RequestLoggingFilter;
import com.jayway.restassured.http.ContentType;
import com.jayway.restassured.internal.MapCreator;
import com.jayway.restassured.internal.http.CharsetExtractor;
import com.jayway.restassured.internal.log.LogRepository;
import com.jayway.restassured.internal.mapper.ObjectMapperType;
import com.jayway.restassured.internal.mapping.ObjectMapperSerializationContextImpl;
import com.jayway.restassured.internal.mapping.ObjectMapping;
import com.jayway.restassured.internal.support.ParameterUpdater;
import com.jayway.restassured.mapper.ObjectMapper;
import com.jayway.restassured.module.mockmvc.config.AsyncConfig;
import com.jayway.restassured.module.mockmvc.config.RestAssuredMockMvcConfig;
import com.jayway.restassured.module.mockmvc.intercept.MockHttpServletRequestBuilderInterceptor;
import com.jayway.restassured.module.mockmvc.response.MockMvcResponse;
import com.jayway.restassured.module.mockmvc.specification.*;
import com.jayway.restassured.response.Cookie;
import com.jayway.restassured.response.Cookies;
import com.jayway.restassured.response.Header;
import com.jayway.restassured.response.Headers;
import com.jayway.restassured.specification.ResponseSpecification;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.MockMvcBuilder;
import org.springframework.test.web.servlet.ResultHandler;
import org.springframework.test.web.servlet.request.RequestPostProcessor;
import org.springframework.test.web.servlet.setup.DefaultMockMvcBuilder;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.test.web.servlet.setup.MockMvcConfigurer;
import org.springframework.web.context.WebApplicationContext;

import java.io.File;
import java.io.InputStream;
import java.net.URI;
import java.net.URL;
import java.security.Principal;
import java.util.*;

import static com.jayway.restassured.internal.assertion.AssertParameter.notNull;
import static com.jayway.restassured.internal.serialization.SerializationSupport.isSerializableCandidate;
import static com.jayway.restassured.module.mockmvc.internal.ConfigConverter.convertToRestAssuredConfig;
import static com.jayway.restassured.module.mockmvc.internal.SpringSecurityClassPathChecker.isSpringSecurityInClasspath;
import static com.jayway.restassured.module.mockmvc.internal.UpdateStrategyConverter.convert;
import static org.apache.commons.lang3.StringUtils.isNotEmpty;

public class MockMvcRequestSpecificationImpl implements MockMvcRequestSpecification, MockMvcAuthenticationSpecification {

    private static final String CONTENT_TYPE = "Content-Type";
    private static final String ACCEPT = "Accept";

    private LogRepository logRepository;

    private MockMvcFactory mockMvcFactory;

    private String basePath;

    private final ResponseSpecification responseSpecification;

    private final Map params = new LinkedHashMap();
    private final Map queryParams = new LinkedHashMap();
    private final Map formParams = new LinkedHashMap();
    private final Map attributes = new LinkedHashMap();

    private Object requestBody = null;

    private RestAssuredMockMvcConfig cfg;

    private Headers requestHeaders = new Headers();

    private Cookies cookies = new Cookies();

    private List multiParts = new ArrayList();

    private RequestLoggingFilter requestLoggingFilter;

    private final ParameterUpdater parameterUpdater = new ParameterUpdater(new ParameterUpdater.Serializer() {
        public String serializeIfNeeded(Object value) {
            return MockMvcRequestSpecificationImpl.this.serializeIfNeeded(value);
        }
    });

    private final List resultHandlers = new ArrayList();

    private final List requestPostProcessors = new ArrayList();

    private MockHttpServletRequestBuilderInterceptor interceptor;

    private Object authentication;

    private AsyncConfig asyncConfig;

    public MockMvcRequestSpecificationImpl(MockMvcFactory mockMvcFactory, RestAssuredMockMvcConfig config, List resultHandlers,
                                           List requestPostProcessors, String basePath,
                                           MockMvcRequestSpecification requestSpecification, ResponseSpecification responseSpecification,
                                           MockMvcAuthenticationScheme authentication) {
        this.logRepository = new LogRepository();
        this.mockMvcFactory = mockMvcFactory == null ? new MockMvcFactory() : mockMvcFactory;
        this.basePath = basePath;
        this.responseSpecification = responseSpecification;
        assignConfig(config);

        if (resultHandlers != null) {
            this.resultHandlers.addAll(resultHandlers);
        }

        if (requestPostProcessors != null) {
            this.requestPostProcessors.addAll(requestPostProcessors);
        }

        if (requestSpecification != null) {
            spec(requestSpecification);
        }

        if (authentication != null) {
            authentication.authenticate(this);
        }
    }

    public MockMvcRequestSpecification mockMvc(MockMvc mockMvc) {
        notNull(mockMvc, MockMvc.class);
        return changeMockMvcFactoryTo(new MockMvcFactory(mockMvc));
    }

    public MockMvcRequestSpecification standaloneSetup(Object... controllerOrMockMvcConfigurer) {
        MockMvcFactory mockMvcFactory = StandaloneMockMvcFactory.of(controllerOrMockMvcConfigurer);
        return changeMockMvcFactoryTo(mockMvcFactory);
    }

    public MockMvcRequestSpecification standaloneSetup(MockMvcBuilder builder) {
        notNull(builder, MockMvcBuilder.class);
        return changeMockMvcFactoryTo(new MockMvcFactory(builder));
    }

    public MockMvcRequestSpecification webAppContextSetup(WebApplicationContext context, MockMvcConfigurer... mockMvcConfigurers) {
        DefaultMockMvcBuilder builder = MockMvcBuilders.webAppContextSetup(context);
        if (mockMvcConfigurers != null && mockMvcConfigurers.length > 0) {
            for (MockMvcConfigurer mockMvcConfigurer : mockMvcConfigurers) {
                builder.apply(mockMvcConfigurer);
            }
        }
        return changeMockMvcFactoryTo(new MockMvcFactory(builder));
    }

    public MockMvcRequestSpecification interceptor(MockHttpServletRequestBuilderInterceptor interceptor) {
        this.interceptor = interceptor;
        return this;
    }

    public MockMvcRequestSpecification and() {
        return this;
    }

    public MockMvcRequestSpecification postProcessors(RequestPostProcessor postProcessor, RequestPostProcessor... additionalPostProcessors) {
        notNull(postProcessor, RequestPostProcessor.class);
        this.requestPostProcessors.add(postProcessor);
        if (additionalPostProcessors != null && additionalPostProcessors.length >= 1) {
            Collections.addAll(this.requestPostProcessors, additionalPostProcessors);
        }
        return this;
    }

    public MockMvcAuthenticationSpecification auth() {
        return this;
    }

    public MockMvcRequestSpecification contentType(ContentType contentType) {
        notNull(contentType, "contentType");
        return header(CONTENT_TYPE, contentType.toString());
    }

    public MockMvcRequestSpecification contentType(String contentType) {
        notNull(contentType, "contentType");
        return header(CONTENT_TYPE, contentType);
    }

    public MockMvcRequestSpecification accept(ContentType contentType) {
        notNull(contentType, "contentType");
        return header(ACCEPT, contentType.getAcceptHeader());
    }

    public MockMvcRequestSpecification accept(String mediaTypes) {
        notNull(mediaTypes, "mediaTypes");
        return header(ACCEPT, mediaTypes);
    }

    public MockMvcRequestSpecification headers(String firstHeaderName, Object firstHeaderValue, Object... headerNameValuePairs) {
        return headers(MapCreator.createMapFromParams(firstHeaderName, firstHeaderValue, headerNameValuePairs));
    }

    public MockMvcRequestSpecification headers(Map headers) {
        notNull(headers, "headers");
        List headerList = new ArrayList();
        if (this.requestHeaders.exist()) {
            for (Header requestHeader : this.requestHeaders) {
                headerList.add(requestHeader);
            }
        }

        for (Map.Entry stringEntry : headers.entrySet()) {
            headerList.add(new Header(stringEntry.getKey(), serializeIfNeeded(stringEntry.getValue())));
        }

        this.requestHeaders = new Headers(headerList);
        return this;
    }

    public MockMvcRequestSpecification headers(Headers headers) {
        notNull(headers, "Headers");
        if (headers.exist()) {
            List headerList = new ArrayList();
            if (this.requestHeaders.exist()) {
                for (Header requestHeader : this.requestHeaders) {
                    headerList.add(requestHeader);
                }
            }

            for (Header requestHeader : headers) {
                headerList.add(requestHeader);
            }

            this.requestHeaders = new Headers(removeMergedHeadersIfNeeded(headerList));
        }
        return this;
    }

    private List removeMergedHeadersIfNeeded(List headerList) {
        HeaderConfig headerConfig = cfg.getHeaderConfig();
        List filteredList = new ArrayList();
        for (Header header : headerList) {
            String headerName = header.getName();
            if (headerConfig.shouldOverwriteHeaderWithName(headerName)) {
                int index = -1;
                for (int i = 0; i < filteredList.size(); i++) {
                    Header filteredHeader = filteredList.get(i);
                    if (filteredHeader.hasSameNameAs(header)) {
                        index = i;
                        break;
                    }
                }

                if (index != -1) {
                    filteredList.remove(index);
                }
            }

            filteredList.add(header);
        }
        return filteredList;
    }

    public MockMvcRequestSpecification header(final String headerName, final Object headerValue, Object... additionalHeaderValues) {
        notNull(headerName, "Header name");
        notNull(headerValue, "Header value");

        List headerList = new ArrayList() {{
            add(new Header(headerName, serializeIfNeeded(headerValue)));
        }};

        if (additionalHeaderValues != null) {
            for (Object additionalHeaderValue : additionalHeaderValues) {
                headerList.add(new Header(headerName, serializeIfNeeded(additionalHeaderValue)));
            }
        }

        return headers(new Headers(headerList));
    }


    public MockMvcRequestSpecification header(Header header) {
        notNull(header, "Header");
        return headers(new Headers(Collections.singletonList(header)));
    }

    public MockMvcRequestLogSpecification log() {
        return new MockMvcRequestLogSpecificationImpl(this);
    }

    public MockMvcRequestSpecification params(String firstParameterName, Object firstParameterValue, Object... parameterNameValuePairs) {
        notNull(firstParameterName, "firstParameterName");
        notNull(firstParameterValue, "firstParameterValue");
        return params(MapCreator.createMapFromParams(firstParameterName, firstParameterValue, parameterNameValuePairs));
    }

    public MockMvcRequestSpecification params(Map parametersMap) {
        notNull(parametersMap, "parametersMap");
        parameterUpdater.updateParameters(convert(cfg.getParamConfig().requestParamsUpdateStrategy()), (Map) parametersMap, params);
        return this;
    }

    public MockMvcRequestSpecification param(String parameterName, Object... parameterValues) {
        notNull(parameterName, "parameterName");
        parameterUpdater.updateZeroToManyParameters(convert(cfg.getParamConfig().requestParamsUpdateStrategy()), params, parameterName, parameterValues);
        return this;
    }

    public MockMvcRequestSpecification param(String parameterName, Collection parameterValues) {
        notNull(parameterName, "parameterName");
        notNull(parameterValues, "parameterValues");
        parameterUpdater.updateCollectionParameter(convert(cfg.getParamConfig().requestParamsUpdateStrategy()), params, parameterName, (Collection