org.cryptomator.frontend.webdav.servlet.WebDavServletModule.java Source code

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Here is the source code for org.cryptomator.frontend.webdav.servlet.WebDavServletModule.java

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/*******************************************************************************
 * Copyright (c) 2016 Sebastian Stenzel and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the accompanying LICENSE.txt.
 *
 * Contributors:
 *     Sebastian Stenzel - initial API and implementation
 *******************************************************************************/
package org.cryptomator.frontend.webdav.servlet;

import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.nio.file.Path;
import java.util.EnumSet;

import javax.inject.Qualifier;
import javax.inject.Scope;
import javax.servlet.DispatcherType;

import org.apache.commons.lang3.StringUtils;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;

import dagger.Module;
import dagger.Provides;

@Module
public class WebDavServletModule {

    private static final String WILDCARD = "/*";

    private final Path rootPath;
    private final String contextPath;

    public WebDavServletModule(Path rootPath, String contextPath) {
        this.rootPath = rootPath;
        this.contextPath = StringUtils.prependIfMissing(StringUtils.removeEnd(contextPath, "/"), "/");
    }

    @PerServlet
    @Provides
    @RootPath
    public Path provideRootPath() {
        return rootPath;
    }

    @PerServlet
    @Provides
    @ContextPath
    public String provideContextRootUri() {
        return contextPath;
    }

    @PerServlet
    @Provides
    public ServletContextHandler provideServletContext(WebDavServlet servlet) {
        final ServletContextHandler servletContext = new ServletContextHandler(null, contextPath,
                ServletContextHandler.SESSIONS);
        final ServletHolder servletHolder = new ServletHolder(contextPath, servlet);
        servletContext.addServlet(servletHolder, WILDCARD);
        servletContext.addFilter(LoggingFilter.class, WILDCARD, EnumSet.of(DispatcherType.REQUEST));
        servletContext.addFilter(UnicodeResourcePathNormalizationFilter.class, WILDCARD,
                EnumSet.of(DispatcherType.REQUEST));
        servletContext.addFilter(PostRequestBlockingFilter.class, WILDCARD, EnumSet.of(DispatcherType.REQUEST));
        servletContext.addFilter(MkcolComplianceFilter.class, WILDCARD, EnumSet.of(DispatcherType.REQUEST));
        servletContext.addFilter(AcceptRangeFilter.class, WILDCARD, EnumSet.of(DispatcherType.REQUEST));
        servletContext.addFilter(MacChunkedPutCompatibilityFilter.class, WILDCARD,
                EnumSet.of(DispatcherType.REQUEST));
        return servletContext;
    }

    @Qualifier
    @Documented
    @Retention(RetentionPolicy.RUNTIME)
    @interface ContextPath {
    }

    @Qualifier
    @Documented
    @Retention(RetentionPolicy.RUNTIME)
    @interface RootPath {
    }

    @Scope
    @Documented
    @Retention(RetentionPolicy.RUNTIME)
    @interface PerServlet {
    }

}