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TkAppFallback.java
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TkAppFallback.java
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/*
* Copyright (c) 2009-2024 Yegor Bugayenko
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met: 1) Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer. 2) Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution. 3) Neither the name of the rultor.com nor
* the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
* NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.rultor.web;
import com.jcabi.manifests.Manifests;
import io.sentry.Sentry;
import java.io.IOException;
import java.net.HttpURLConnection;
import org.takes.Response;
import org.takes.Take;
import org.takes.facets.fallback.FbChain;
import org.takes.facets.fallback.FbStatus;
import org.takes.facets.fallback.RqFallback;
import org.takes.facets.fallback.TkFallback;
import org.takes.misc.Opt;
import org.takes.rs.RsText;
import org.takes.rs.RsVelocity;
import org.takes.rs.RsWithStatus;
import org.takes.rs.RsWithType;
import org.takes.tk.TkWrap;
/**
* App with fallback.
*
* @since 1.53
*/
final class TkAppFallback extends TkWrap {
/**
* Revision of rultor.
*/
private static final String REV = Manifests.read("Rultor-Revision");
/**
* Ctor.
* @param take Take
*/
TkAppFallback(final Take take) {
super(TkAppFallback.make(take));
}
/**
* Authenticated.
* @param take Takes
* @return Authenticated takes
*/
private static Take make(final Take take) {
return new TkFallback(
take,
new FbChain(
new FbStatus(
HttpURLConnection.HTTP_NOT_FOUND,
new RsWithStatus(
new RsText("page not found"),
HttpURLConnection.HTTP_NOT_FOUND
)
),
req -> {
Sentry.captureException(req.throwable());
return new Opt.Empty<>();
},
req -> new Opt.Single<>(TkAppFallback.fatal(req))
)
);
}
/**
* Make fatal error page.
* @param req Request
* @return Response
* @throws IOException If fails
*/
private static Response fatal(final RqFallback req) throws IOException {
return new RsWithStatus(
new RsWithType(
new RsVelocity(
TkAppFallback.class.getResource("error.html.vm"),
new RsVelocity.Pair(
"err",
req.throwable().getStackTrace()
),
new RsVelocity.Pair("rev", TkAppFallback.REV)
),
"text/html"
),
HttpURLConnection.HTTP_INTERNAL_ERROR
);
}
}