99 lines
3.6 KiB
Java
99 lines
3.6 KiB
Java
// Copyright (C) 2017 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package com.google.gerrit.httpd.raw;
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import static java.nio.charset.StandardCharsets.UTF_8;
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import static javax.servlet.http.HttpServletResponse.SC_OK;
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import com.google.common.base.Strings;
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import com.google.common.io.Resources;
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import com.google.gerrit.common.Nullable;
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import com.google.template.soy.SoyFileSet;
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import com.google.template.soy.data.SanitizedContent;
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import com.google.template.soy.data.SoyMapData;
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import com.google.template.soy.data.UnsafeSanitizedContentOrdainer;
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import com.google.template.soy.tofu.SoyTofu;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.net.URI;
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import java.net.URISyntaxException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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public class IndexServlet extends HttpServlet {
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private static final long serialVersionUID = 1L;
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protected final byte[] indexSource;
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IndexServlet(String canonicalURL, @Nullable String cdnPath, @Nullable String faviconPath)
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throws URISyntaxException {
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String resourcePath = "com/google/gerrit/httpd/raw/PolyGerritIndexHtml.soy";
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SoyFileSet.Builder builder = SoyFileSet.builder();
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builder.add(Resources.getResource(resourcePath));
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SoyTofu.Renderer renderer =
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builder
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.build()
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.compileToTofu()
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.newRenderer("com.google.gerrit.httpd.raw.Index")
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.setContentKind(SanitizedContent.ContentKind.HTML)
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.setData(getTemplateData(canonicalURL, cdnPath, faviconPath));
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indexSource = renderer.render().getBytes(UTF_8);
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}
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@Override
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protected void doGet(HttpServletRequest req, HttpServletResponse rsp) throws IOException {
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rsp.setCharacterEncoding(UTF_8.name());
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rsp.setContentType("text/html");
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rsp.setStatus(SC_OK);
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try (OutputStream w = rsp.getOutputStream()) {
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w.write(indexSource);
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}
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}
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static String computeCanonicalPath(String canonicalURL) throws URISyntaxException {
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if (Strings.isNullOrEmpty(canonicalURL)) {
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return "";
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}
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// If we serving from a sub-directory rather than root, determine the path
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// from the cannonical web URL.
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URI uri = new URI(canonicalURL);
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return uri.getPath().replaceAll("/$", "");
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}
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static SoyMapData getTemplateData(String canonicalURL, String cdnPath, String faviconPath)
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throws URISyntaxException {
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String canonicalPath = computeCanonicalPath(canonicalURL);
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String staticPath = "";
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if (cdnPath != null) {
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staticPath = cdnPath;
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} else if (canonicalPath != null) {
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staticPath = canonicalPath;
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}
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// The resource path must be typed as safe for use in a script src.
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// TODO(wyatta): Upgrade this to use an appropriate safe URL type.
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SanitizedContent sanitizedStaticPath =
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UnsafeSanitizedContentOrdainer.ordainAsSafe(
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staticPath, SanitizedContent.ContentKind.TRUSTED_RESOURCE_URI);
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return new SoyMapData(
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"canonicalPath", canonicalPath,
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"staticResourcePath", sanitizedStaticPath,
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"faviconPath", faviconPath);
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}
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}
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