forked from TheBrokenRail/ModUpdater
119 lines
4.1 KiB
Java
119 lines
4.1 KiB
Java
package com.thebrokenrail.modupdater.strategy;
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import com.thebrokenrail.modupdater.ModUpdater;
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import com.thebrokenrail.modupdater.api.ConfigObject;
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import com.thebrokenrail.modupdater.api.UpdateStrategy;
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import com.thebrokenrail.modupdater.data.ModUpdate;
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import com.thebrokenrail.modupdater.util.Util;
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import net.fabricmc.loader.api.SemanticVersion;
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import net.fabricmc.loader.util.version.VersionParsingException;
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import org.w3c.dom.Document;
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import org.w3c.dom.Node;
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import org.w3c.dom.NodeList;
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import org.xml.sax.SAXException;
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import javax.annotation.Nullable;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.parsers.ParserConfigurationException;
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import javax.xml.xpath.XPath;
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import javax.xml.xpath.XPathConstants;
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import javax.xml.xpath.XPathExpressionException;
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import javax.xml.xpath.XPathFactory;
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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public class MavenStrategy implements UpdateStrategy {
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private final DocumentBuilder builder;
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public MavenStrategy() {
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DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
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factory.setValidating(true);
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factory.setIgnoringElementContentWhitespace(true);
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try {
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builder = factory.newDocumentBuilder();
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} catch (ParserConfigurationException e) {
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throw new RuntimeException(e);
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}
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}
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@Override
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@Nullable
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public ModUpdate run(ConfigObject obj, String oldVersion, String name, String id) {
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String repository;
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String group;
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String artifact;
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try {
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repository = obj.getString("repository");
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group = obj.getString("group");
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artifact = obj.getString("artifact");
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} catch (ConfigObject.MissingValueException e) {
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ModUpdater.logWarn(name, e.getMessage());
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return null;
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}
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String mavenRoot = String.format("%s/%s/%s", repository, group.replaceAll("\\.", "/"), artifact);
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String data;
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try {
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data = Util.urlToString(mavenRoot + "/maven-metadata.xml");
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} catch (IOException e) {
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ModUpdater.logWarn(name, e.toString());
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return null;
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}
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Document doc;
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try (InputStream source = new ByteArrayInputStream(data.getBytes())) {
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doc = builder.parse(source);
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} catch (IOException | SAXException e) {
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ModUpdater.logWarn(name, e.toString());
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return null;
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}
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XPath xPath = XPathFactory.newInstance().newXPath();
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NodeList versions;
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try {
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versions = (NodeList) xPath.compile("/metadata/versioning/versions/*").evaluate(doc, XPathConstants.NODESET);
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} catch (XPathExpressionException e) {
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ModUpdater.logWarn(name, e.toString());
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return null;
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}
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boolean strict = isStrict(obj);
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String newestVersion = null;
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for (int i = 0; i < versions.getLength(); i++) {
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Node node = versions.item(i);
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String version = node.getTextContent();
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if (Util.isVersionCompatible(id, version, strict)) {
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if (newestVersion != null) {
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try {
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if (SemanticVersion.parse(version).compareTo(SemanticVersion.parse(newestVersion)) > 0) {
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newestVersion = version;
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}
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} catch (VersionParsingException ignored) {
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}
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} else {
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newestVersion = version;
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}
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}
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}
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if (newestVersion != null) {
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try {
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if (SemanticVersion.parse(newestVersion).compareTo(SemanticVersion.parse(oldVersion)) > 0) {
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return new ModUpdate(oldVersion, newestVersion, String.format("%s/%s/%s-%s%s", mavenRoot, newestVersion, artifact, newestVersion, Util.JAR_EXTENSION), name);
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} else {
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return null;
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}
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} catch (VersionParsingException e) {
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return null;
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}
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} else {
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return null;
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}
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}
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}
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