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// Copyright (C) 2019 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.httpd.raw;
importstatic com.google.gerrit.httpd.raw.IndexPreloadingUtil.RequestedPage;
importstatic com.google.template.soy.data.ordainers.GsonOrdainer.serializeObject;
importstatic java.util.stream.Collectors.toSet;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableMap;
import com.google.common.flogger.FluentLogger;
import com.google.gerrit.common.Nullable;
import com.google.gerrit.common.UsedAt;
import com.google.gerrit.common.UsedAt.Project;
import com.google.gerrit.extensions.api.GerritApi;
import com.google.gerrit.extensions.api.accounts.AccountApi;
import com.google.gerrit.extensions.api.config.Server;
import com.google.gerrit.extensions.restapi.AuthException;
import com.google.gerrit.extensions.restapi.RestApiException;
import com.google.gerrit.json.OutputFormat;
import com.google.gerrit.server.experiments.ExperimentFeatures;
import com.google.gson.Gson;
import com.google.template.soy.data.SanitizedContent;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.function.Function;
/** Helper for generating parts of {@code index.html}. */
@UsedAt(Project.GOOGLE)
public classIndexHtmlUtil{
private static final FluentLogger logger = FluentLogger.forEnclosingClass();
private static final Gson GSON = OutputFormat.JSON_COMPACT.newGson();
/**
* Returns both static and dynamic parameters of {@code index.html}. The result is to be used when
* rendering the soy template.
*/
public static ImmutableMap templateData(
GerritApi gerritApi,
ExperimentFeatures experimentFeatures,
String canonicalURL,
String cdnPath,
String faviconPath,
Map urlParameterMap,
Function urlInScriptTagOrdainer,
String requestedURL)
throws URISyntaxException, RestApiException {
ImmutableMap.Builder data = ImmutableMap.builder();
data.putAll(
staticTemplateData(
canonicalURL, cdnPath, faviconPath, urlParameterMap, urlInScriptTagOrdainer))
.putAll(dynamicTemplateData(gerritApi, requestedURL));
Set enabledExperiments = experimentFeatures.getEnabledExperimentFeatures();
if (!enabledExperiments.isEmpty()) {
data.put("enabledExperiments", serializeObject(GSON, enabledExperiments).toString());
}
return data.build();
}
/** Returns dynamic parameters of {@code index.html}. */
public static ImmutableMap dynamicTemplateData(
GerritApi gerritApi, String requestedURL) throws RestApiException, URISyntaxException {
ImmutableMap.Builder data = ImmutableMap.builder();
Map initialData = new HashMap<>();
Server serverApi = gerritApi.config().server();
initialData.put("\"/config/server/info\"", serializeObject(GSON, serverApi.getInfo()));
initialData.put("\"/config/server/version\"", serializeObject(GSON, serverApi.getVersion()));
initialData.put("\"/config/server/top-menus\"", serializeObject(GSON, serverApi.topMenus()));
String requestedPath = IndexPreloadingUtil.getPath(requestedURL);
IndexPreloadingUtil.RequestedPage page = IndexPreloadingUtil.parseRequestedPage(requestedPath);
switch (page) {
case CHANGE:
data.put(
"defaultChangeDetailHex", IndexPreloadingUtil.getDefaultChangeDetailOptionsAsHex());
data.put(
"changeRequestsPath",
IndexPreloadingUtil.computeChangeRequestsPath(requestedPath, page).get());
break;
case DIFF:
data.put("defaultDiffDetailHex", IndexPreloadingUtil.getDefaultDiffDetailOptionsAsHex());
data.put(
"changeRequestsPath",
IndexPreloadingUtil.computeChangeRequestsPath(requestedPath, page).get());
break;
case DASHBOARD:
// Dashboard is preloaded queries are added later when we check user is authenticated.case PAGE_WITHOUT_PRELOADING:
break;
}
try {
AccountApi accountApi = gerritApi.accounts().self();
initialData.put("\"/accounts/self/detail\"", serializeObject(GSON, accountApi.get()));
initialData.put(
"\"/accounts/self/preferences\"", serializeObject(GSON, accountApi.getPreferences()));
initialData.put(
"\"/accounts/self/preferences.diff\"",
serializeObject(GSON, accountApi.getDiffPreferences()));
initialData.put(
"\"/accounts/self/preferences.edit\"",
serializeObject(GSON, accountApi.getEditPreferences()));
data.put("userIsAuthenticated", true);
if (page == RequestedPage.DASHBOARD) {
data.put("defaultDashboardHex", IndexPreloadingUtil.getDefaultDashboardHex(serverApi));
data.put("dashboardQuery", IndexPreloadingUtil.computeDashboardQueryList(serverApi));
}
} catch (AuthException e) {
logger.atFine().log("Can't inline account-related data because user is unauthenticated");
// Don't render data
}
data.put("gerritInitialData", initialData);
return data.build();
}
/** Returns experimentData to be used in {@code index.html}. */
public staticSet experimentData(Map urlParameterMap) {
// Allow enable experiments with url// ?experiment=a&experiment=b should result in:// "experiment" => [a,b]if (urlParameterMap.containsKey("experiment")) {
return Arrays.asList(urlParameterMap.get("experiment")).stream().collect(toSet());
}
return Collections.emptySet();
}
/** Returns all static parameters of {@code index.html}. */staticMap staticTemplateData(
String canonicalURL,
String cdnPath,
String faviconPath,
Map urlParameterMap,
Function urlInScriptTagOrdainer)
throws URISyntaxException {
String canonicalPath = computeCanonicalPath(canonicalURL);
String staticPath = "";
if (cdnPath != null) {
staticPath = cdnPath;
} elseif (canonicalPath != null) {
staticPath = canonicalPath;
}
SanitizedContent sanitizedStaticPath = urlInScriptTagOrdainer.apply(staticPath);
ImmutableMap.Builder data = ImmutableMap.builder();
if (canonicalPath != null) {
data.put("canonicalPath", canonicalPath);
}
if (sanitizedStaticPath != null) {
data.put("staticResourcePath", sanitizedStaticPath);
}
if (faviconPath != null) {
data.put("faviconPath", faviconPath);
}
if (urlParameterMap.containsKey("ce")) {
data.put("polyfillCE", "true");
}
if (urlParameterMap.containsKey("gf")) {
data.put("useGoogleFonts", "true");
}
return data.build();
}
private staticString computeCanonicalPath(@Nullable String canonicalURL)
throws URISyntaxException {
if (Strings.isNullOrEmpty(canonicalURL)) {
return"";
}
// If we serving from a sub-directory rather than root, determine the path// from the cannonical web URL.
URI uri = new URI(canonicalURL);
return uri.getPath().replaceAll("/$", "");
}
private IndexHtmlUtil() {}
}