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// Copyright (C) 2016 The Android Open Source Project
//
// 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.google.gerrit.server.mail.send;
import com.google.common.io.CharStreams;
import com.google.common.io.Resources;
import com.google.gerrit.server.config.SitePaths;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.ProvisionException;
import com.google.inject.Singleton;
import com.google.template.soy.SoyFileSet;
import com.google.template.soy.shared.SoyAstCache;
import com.google.template.soy.tofu.SoyTofu;
import java.io.IOException;
import java.io.Reader;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
/** Configures Soy Tofu object for rendering email templates. */
@Singleton
public class MailSoyTofuProvider implements Provider {
// Note: will fail to construct the tofu object if this array is empty.
private static final String[] TEMPLATES = {
"Abandoned.soy",
"AbandonedHtml.soy",
"AddKey.soy",
"AddKeyHtml.soy",
"ChangeFooter.soy",
"ChangeFooterHtml.soy",
"ChangeSubject.soy",
"Comment.soy",
"CommentHtml.soy",
"CommentFooter.soy",
"CommentFooterHtml.soy",
"DeleteReviewer.soy",
"DeleteReviewerHtml.soy",
"DeleteVote.soy",
"DeleteVoteHtml.soy",
"InboundEmailRejection.soy",
"InboundEmailRejectionHtml.soy",
"Footer.soy",
"FooterHtml.soy",
"HeaderHtml.soy",
"Merged.soy",
"MergedHtml.soy",
"NewChange.soy",
"NewChangeHtml.soy",
"NoReplyFooter.soy",
"NoReplyFooterHtml.soy",
"Private.soy",
"RegisterNewEmail.soy",
"ReplacePatchSet.soy",
"ReplacePatchSetHtml.soy",
"Restored.soy",
"RestoredHtml.soy",
"Reverted.soy",
"RevertedHtml.soy",
"SetAssignee.soy",
"SetAssigneeHtml.soy",
};
private final SitePaths site;
private final SoyAstCache cache;
@Inject
MailSoyTofuProvider(SitePaths site, SoyAstCache cache) {
this.site = site;
this.cache = cache;
}
@Override
public SoyTofu get() throws ProvisionException {
SoyFileSet.Builder builder = SoyFileSet.builder();
builder.setSoyAstCache(cache);
for (String name : TEMPLATES) {
addTemplate(builder, name);
}
return builder.build().compileToTofu();
}
private void addTemplate(SoyFileSet.Builder builder, String name) throws ProvisionException {
// Load as a file in the mail templates directory if present.
Path tmpl = site.mail_dir.resolve(name);
if (Files.isRegularFile(tmpl)) {
String content;
// TODO(davido): Consider using JGit's FileSnapshot to cache based on
// mtime.
try (Reader r = Files.newBufferedReader(tmpl, StandardCharsets.UTF_8)) {
content = CharStreams.toString(r);
} catch (IOException err) {
throw new ProvisionException(
"Failed to read template file " + tmpl.toAbsolutePath().toString(), err);
}
builder.add(content, tmpl.toAbsolutePath().toString());
return;
}
// Otherwise load the template as a resource.
String resourcePath = "com/google/gerrit/server/mail/" + name;
builder.add(Resources.getResource(resourcePath));
}
}
