first commit
This commit is contained in:
Vhati
parent
352e1653f8
commit
16a197e856
44 changed files with 5942 additions and 3 deletions
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package net.vhati.modmanager.json;
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import java.io.BufferedReader;
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import java.io.BufferedWriter;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.io.OutputStreamWriter;
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import java.net.HttpURLConnection;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.net.URLConnection;
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import java.util.Date;
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import java.util.List;
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import java.util.Map;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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public class GrognakCatalogFetcher {
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private static final Logger log = LogManager.getLogger(GrognakCatalogFetcher.class);
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public static final String CATALOG_URL = "https://raw.github.com/Grognak/Grognaks-Mod-Manager/master/backup/current_catalog.json";
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/**
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* Downloads the latest mod catalog.
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*
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* @return true if the catalog successfully downloaded, false otherwise
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*/
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public static boolean fetchCatalog( String catalogURL, File catalogFile, File eTagFile ) {
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String localETag = null;
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log.debug( "Attempting to download a newer catalog..." );
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if ( eTagFile.exists() ) {
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// Load the old eTag.
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InputStream etagIn = null;
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try {
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etagIn = new FileInputStream( eTagFile );
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BufferedReader br = new BufferedReader( new InputStreamReader( etagIn, "UTF-8" ) );
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String line = br.readLine();
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if ( line.length() > 0 )
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localETag = line;
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}
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catch ( IOException e ) {
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// Not serious enough to be a real error.
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log.debug( String.format( "Error reading catalog eTag from \"%s\".", eTagFile.getName() ), e );
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}
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finally {
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try {if ( etagIn != null ) etagIn.close();}
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catch ( IOException e ) {}
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}
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}
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String remoteETag = null;
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InputStream urlIn = null;
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OutputStream catalogOut = null;
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try {
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URL url = new URL( catalogURL );
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URLConnection conn = url.openConnection();
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if ( conn instanceof HttpURLConnection == false ) {
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log.error( String.format( "Non-Http(s) URL given for catalog fetching: %s", catalogURL ) );
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return false;
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}
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HttpURLConnection httpConn = (HttpURLConnection)conn;
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httpConn.setReadTimeout( 10000 );
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if ( localETag != null )
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httpConn.setRequestProperty( "If-None-Match", localETag );
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httpConn.connect();
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int responseCode = httpConn.getResponseCode();
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if ( responseCode == HttpURLConnection.HTTP_NOT_MODIFIED ) {
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log.debug( "The server's catalog has not been modified since the previous check." );
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// Update the catalog file's timestamp as if it had downloaded.
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catalogFile.setLastModified( new Date().getTime() );
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return false;
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}
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else if ( responseCode == HttpURLConnection.HTTP_OK ) {
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Map<String, List<String>> headerMap = httpConn.getHeaderFields();
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List<String> eTagValues = headerMap.get( "ETag" );
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if ( eTagValues != null && eTagValues.size() > 0 )
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remoteETag = eTagValues.get( 0 );
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urlIn = httpConn.getInputStream();
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catalogOut = new FileOutputStream( catalogFile );
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byte[] buf = new byte[4096];
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int len;
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while ( (len = urlIn.read(buf)) >= 0 ) {
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catalogOut.write( buf, 0, len );
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}
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}
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else {
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log.error( String.format( "Catalog download request failed: HTTP Code %d (%s).", responseCode, httpConn.getResponseMessage() ) );
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return false;
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}
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}
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catch ( MalformedURLException e ) {
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log.error( "Error fetching latest catalog.", e );
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}
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catch ( IOException e ) {
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log.error( "Error fetching latest catalog.", e );
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}
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finally {
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try {if ( urlIn != null ) urlIn.close();}
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catch ( IOException e ) {}
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try {if ( catalogOut != null ) catalogOut.close();}
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catch ( IOException e ) {}
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}
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if ( remoteETag != null ) {
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// Save the new eTag.
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OutputStream etagOut = null;
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try {
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etagOut = new FileOutputStream( eTagFile );
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BufferedWriter bw = new BufferedWriter( new OutputStreamWriter( etagOut, "UTF-8" ) );
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bw.append( remoteETag );
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bw.flush();
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}
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catch ( IOException e ) {
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log.error( String.format( "Error writing catalog eTag to \"%s\".", eTagFile.getName() ), e );
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}
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finally {
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try {if ( etagOut != null ) etagOut.close();}
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catch ( IOException e ) {}
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}
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}
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return true;
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}
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}
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@ -0,0 +1,72 @@
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package net.vhati.modmanager.json;
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import java.io.File;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.HashMap;
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import net.vhati.modmanager.core.ModDB;
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import net.vhati.modmanager.core.ModInfo;
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import com.fasterxml.jackson.annotation.PropertyAccessor;
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import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
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import com.fasterxml.jackson.core.JsonParser;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.databind.JsonNode;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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public class JacksonGrognakCatalogReader {
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private static final Logger log = LogManager.getLogger(JacksonGrognakCatalogReader.class);
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public static ModDB parse( File jsonFile ) {
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ModDB modDB = new ModDB();
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Exception exception = null;
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try {
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ObjectMapper mapper = new ObjectMapper();
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mapper.configure(JsonParser.Feature.ALLOW_SINGLE_QUOTES, true);
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mapper.setVisibility(PropertyAccessor.FIELD, Visibility.ANY);
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JsonNode rootNode = mapper.readTree(jsonFile);
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JsonNode catalogsNode = rootNode.get("catalog_versions");
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JsonNode catalogNode = catalogsNode.get("1");
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for ( JsonNode infoNode : catalogNode ) {
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String threadURL = infoNode.get("url").textValue();
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String threadHash = infoNode.get("thread_hash").textValue();
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if ( !threadURL.equals("???") && !threadHash.equals("???") )
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modDB.putThreadHash( threadURL, threadHash );
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JsonNode versionsNode = infoNode.get("versions");
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for ( JsonNode versionNode : versionsNode ) {
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ModInfo modInfo = new ModInfo();
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modInfo.setTitle( infoNode.get("title").textValue() );
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modInfo.setAuthor( infoNode.get("author").textValue() );
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modInfo.setURL( infoNode.get("url").textValue() );
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modInfo.setDescription( infoNode.get("desc").textValue() );
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modInfo.setFileHash( versionNode.get("hash").textValue() );
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modInfo.setVersion( versionNode.get("version").textValue() );
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modDB.addMod( modInfo );
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}
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}
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}
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catch ( JsonProcessingException e ) {
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exception = e;
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}
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catch ( IOException e ) {
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exception = e;
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}
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if ( exception != null ) {
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log.error( exception );
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return null;
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}
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return modDB;
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}
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}
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