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Code Analyzer for JavaScript/TypeScript/CSS
/*
* SonarQube JavaScript Plugin
* Copyright (C) 2011-2022 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.plugins.javascript.eslint;
import java.io.IOException;
import java.util.List;
import java.util.Scanner;
import java.util.concurrent.TimeUnit;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import java.util.stream.StreamSupport;
import org.sonar.api.batch.fs.FilePredicates;
import org.sonar.api.batch.fs.InputFile;
import org.sonar.api.batch.sensor.SensorDescriptor;
import org.sonar.api.utils.log.Logger;
import org.sonar.api.utils.log.Loggers;
import org.sonar.plugins.javascript.CancellationException;
import org.sonar.plugins.javascript.eslint.EslintBridgeServer.JsAnalysisRequest;
import org.sonar.plugins.javascript.eslint.cache.CacheStrategies;
import org.sonar.plugins.javascript.eslint.cache.CacheStrategy;
import org.sonar.plugins.javascript.utils.ProgressReport;
public class YamlSensor extends AbstractEslintSensor {
public static final String LANGUAGE = "yaml";
public static final String SAM_TRANSFORM_FIELD = "AWS::Serverless-2016-10-31";
public static final String NODEJS_RUNTIME_REGEX = "^\\s*Runtime:\\s*[\'\"]?nodejs\\S*[\'\"]?";
private static final Logger LOG = Loggers.get(YamlSensor.class);
private final JavaScriptChecks checks;
private final AnalysisProcessor analysisProcessor;
private AnalysisMode analysisMode;
public YamlSensor(
JavaScriptChecks checks,
EslintBridgeServer eslintBridgeServer,
AnalysisWarningsWrapper analysisWarnings,
Monitoring monitoring,
AnalysisProcessor processAnalysis) {
// The monitoring sensor remains inactive during YAML files analysis, as the
// bridge doesn't provide nor compute metrics for such files.
super(eslintBridgeServer, analysisWarnings, monitoring);
this.checks = checks;
this.analysisProcessor = processAnalysis;
}
@Override
public void describe(SensorDescriptor descriptor) {
descriptor
.name("JavaScript inside YAML analysis")
.onlyOnLanguage(LANGUAGE);
}
@Override
protected void analyzeFiles(List inputFiles) throws IOException {
analysisMode = AnalysisMode.getMode(context, checks.eslintRules());
var progressReport = new ProgressReport("Analysis progress", TimeUnit.SECONDS.toMillis(10));
var success = false;
try {
progressReport.start(inputFiles.size(), inputFiles.iterator().next().absolutePath());
eslintBridgeServer.initLinter(checks.eslintRules(), environments, globals, analysisMode);
for (var inputFile : inputFiles) {
if (context.isCancelled()) {
throw new CancellationException("Analysis interrupted because the SensorContext is in cancelled state");
}
if (eslintBridgeServer.isAlive()) {
progressReport.nextFile(inputFile.absolutePath());
var cacheStrategy = CacheStrategies.getStrategyFor(context, inputFile);
if (cacheStrategy.isAnalysisRequired()) {
analyze(inputFile, cacheStrategy);
}
} else {
throw new IllegalStateException("eslint-bridge server is not answering");
}
}
success = true;
} finally {
if (success) {
progressReport.stop();
} else {
progressReport.cancel();
}
}
}
@Override
protected List getInputFiles() {
var fileSystem = context.fileSystem();
FilePredicates p = fileSystem.predicates();
var filePredicate = p.and(p.hasLanguage(YamlSensor.LANGUAGE), input -> isSamTemplate(input, LOG));
var inputFiles = context.fileSystem().inputFiles(filePredicate);
return StreamSupport.stream(inputFiles.spliterator(), false).collect(Collectors.toList());
}
// Inspired from
// https://github.com/SonarSource/sonar-security/blob/14251a6e51d210d268fa71abbac40e4996d03227/sonar-security-plugin/src/main/java/com/sonar/security/aws/AwsSensorUtils.java#L51
private static boolean isSamTemplate(InputFile inputFile, Logger logger) {
boolean hasAwsTransform = false;
boolean hasNodeJsRuntime = false;
try (Scanner scanner = new Scanner(inputFile.inputStream(), inputFile.charset().name())) {
Pattern regex = Pattern.compile(NODEJS_RUNTIME_REGEX);
while (scanner.hasNextLine()) {
String line = scanner.nextLine();
// Normally, we would be looking for an entry like "Transform: AWS::Serverless-2016-10-31", however, checking the whole entry could be
// problematic with whitespaces, so we will be looking just for the field value.
if (line.contains(SAM_TRANSFORM_FIELD)) {
hasAwsTransform = true;
}
// We check early the runtime to avoid making Node.js a mandatory dependency on projects that include YAML configuration files for AWS,
// and we consider only those which define Node.js as the runtime, which potentially embed JavaScript code.
Matcher lineMatch = regex.matcher(line);
if (lineMatch.find()) {
hasNodeJsRuntime = true;
}
if (hasAwsTransform && hasNodeJsRuntime) {
return true;
}
}
} catch (IOException e) {
logger.error(String.format("Unable to read file: %s.", inputFile.uri()));
logger.error(e.getMessage());
}
return false;
}
private void analyze(InputFile file, CacheStrategy cacheStrategy) throws IOException {
try {
LOG.debug("Analyzing file: {}", file.uri());
var fileContent = contextUtils.shouldSendFileContent(file) ? file.contents() : null;
var jsAnalysisRequest = new JsAnalysisRequest(
file.absolutePath(),
file.type().toString(),
fileContent,
contextUtils.ignoreHeaderComments(),
null,
null,
analysisMode.getLinterIdFor(file));
var response = eslintBridgeServer.analyzeYaml(jsAnalysisRequest);
analysisProcessor.processResponse(context, checks, file, response);
cacheStrategy.writeGeneratedFilesToCache(response.ucfgPaths);
} catch (IOException e) {
LOG.error("Failed to get response while analyzing " + file.uri(), e);
throw e;
}
}
}