490 lines
18 KiB
Java
490 lines
18 KiB
Java
package carpet.script.utils;
|
|
|
|
import carpet.script.CarpetScriptHost;
|
|
import carpet.script.CarpetScriptServer;
|
|
import carpet.script.Expression;
|
|
import carpet.script.exception.InternalExpressionException;
|
|
import carpet.script.external.Carpet;
|
|
import carpet.script.external.Vanilla;
|
|
import carpet.script.value.MapValue;
|
|
import carpet.script.value.StringValue;
|
|
import carpet.script.value.Value;
|
|
import com.google.gson.JsonArray;
|
|
import com.google.gson.JsonElement;
|
|
import com.google.gson.JsonObject;
|
|
import com.google.gson.JsonParser;
|
|
import net.minecraft.commands.CommandSourceStack;
|
|
import net.minecraft.network.chat.Component;
|
|
import net.minecraft.world.level.storage.LevelResource;
|
|
|
|
import java.io.BufferedWriter;
|
|
import java.io.IOException;
|
|
import java.io.InputStream;
|
|
import java.net.URL;
|
|
import java.nio.file.Files;
|
|
import java.nio.file.Path;
|
|
import java.nio.charset.StandardCharsets;
|
|
import java.nio.file.StandardCopyOption;
|
|
import java.util.Arrays;
|
|
import java.util.Collections;
|
|
import java.util.HashMap;
|
|
import java.util.List;
|
|
import java.util.Map;
|
|
import java.util.stream.Collectors;
|
|
|
|
import org.apache.commons.io.IOUtils;
|
|
|
|
import javax.annotation.Nullable;
|
|
|
|
/**
|
|
* A class used to save scarpet app store scripts to disk
|
|
*/
|
|
public class AppStoreManager
|
|
{
|
|
/**
|
|
* A local copy of the scarpet repo's file structure, to avoid multiple queries to github.com while typing out the
|
|
* {@code /script download} command and getting the suggestions.
|
|
*/
|
|
private static StoreNode APP_STORE_ROOT = StoreNode.folder(null, "");
|
|
private static long storeErrorTime = 0;
|
|
|
|
/**
|
|
* This is the base link to the scarpet app repo from the github api.
|
|
*/
|
|
private static String scarpetRepoLink = "https://api.github.com/repos/gnembon/scarpet/contents/programs/";
|
|
|
|
public static void setScarpetRepoLink(@Nullable String link)
|
|
{
|
|
APP_STORE_ROOT = AppStoreManager.StoreNode.folder(null, "");
|
|
scarpetRepoLink = link;
|
|
}
|
|
|
|
public static boolean enabled()
|
|
{
|
|
return scarpetRepoLink != null;
|
|
}
|
|
|
|
private record AppInfo(String name, String url, StoreNode source)
|
|
{
|
|
}
|
|
|
|
public static class StoreNode
|
|
{
|
|
public String name;
|
|
@Nullable
|
|
public StoreNode parent;
|
|
public Map<String, StoreNode> children;
|
|
public boolean sealed;
|
|
public String value;
|
|
|
|
public static StoreNode folder(@Nullable StoreNode parent, String name)
|
|
{
|
|
StoreNode node = new StoreNode(parent, name);
|
|
node.children = new HashMap<>();
|
|
node.value = null;
|
|
node.sealed = false;
|
|
return node;
|
|
}
|
|
|
|
public static StoreNode scriptFile(StoreNode parent, String name, String value)
|
|
{
|
|
StoreNode node = new StoreNode(parent, name);
|
|
node.children = null;
|
|
node.value = value;
|
|
node.sealed = true;
|
|
return node;
|
|
}
|
|
|
|
public boolean isLeaf()
|
|
{
|
|
return value != null;
|
|
}
|
|
|
|
public String pathElement()
|
|
{
|
|
return name + (isLeaf() ? "" : "/");
|
|
}
|
|
|
|
public String getPath()
|
|
{
|
|
return createPrePath().toString();
|
|
}
|
|
|
|
private StringBuilder createPrePath()
|
|
{
|
|
return this == APP_STORE_ROOT ? new StringBuilder() : parent.createPrePath().append(pathElement());
|
|
}
|
|
|
|
private StoreNode(@Nullable StoreNode parent, String name)
|
|
{
|
|
this.parent = parent;
|
|
this.name = name;
|
|
this.sealed = false;
|
|
}
|
|
|
|
public synchronized void fillChildren(@Nullable CommandSourceStack source) throws IOException
|
|
{
|
|
if (sealed)
|
|
{
|
|
return;
|
|
}
|
|
if (!enabled())
|
|
{
|
|
throw new IOException("Accessing scarpet app repo is disabled");
|
|
}
|
|
if (System.currentTimeMillis() - storeErrorTime < 30000)
|
|
{
|
|
if (source != null)
|
|
{
|
|
Carpet.Messenger_message(source, "di App store is not available yet");
|
|
}
|
|
return;
|
|
}
|
|
|
|
String queryPath = scarpetRepoLink + getPath();
|
|
String response;
|
|
try
|
|
{
|
|
response = IOUtils.toString(new URL(queryPath), StandardCharsets.UTF_8);
|
|
}
|
|
catch (IOException e)
|
|
{
|
|
if (source != null)
|
|
{
|
|
Carpet.Messenger_message(source, "r Scarpet app store is not available at the moment, try in a minute");
|
|
}
|
|
storeErrorTime = System.currentTimeMillis();
|
|
// Not sealing to allow retrying
|
|
throw new IOException("Problems fetching " + queryPath, e);
|
|
}
|
|
JsonArray files = JsonParser.parseString(response).getAsJsonArray();
|
|
for (JsonElement je : files)
|
|
{
|
|
JsonObject jo = je.getAsJsonObject();
|
|
String elementName = jo.get("name").getAsString();
|
|
if (jo.get("type").getAsString().equals("dir"))
|
|
{
|
|
children.put(elementName, folder(this, elementName));
|
|
}
|
|
else// if (name.matches("(\\w+\\.scl?)"))
|
|
{
|
|
String url = jo.get("download_url").getAsString();
|
|
children.put(elementName, scriptFile(this, elementName, url));
|
|
}
|
|
}
|
|
sealed = true;
|
|
}
|
|
|
|
/**
|
|
* Returns true if doing down the directory structure cannot continue since the matching element is either a leaf or
|
|
* a string not matching of any node.
|
|
*/
|
|
public boolean cannotContinueFor(String pathElement, CommandSourceStack source) throws IOException
|
|
{
|
|
if (isLeaf())
|
|
{
|
|
return true;
|
|
}
|
|
fillChildren(source);
|
|
return !children.containsKey(pathElement);
|
|
}
|
|
|
|
public List<String> createPathSuggestions(CommandSourceStack source) throws IOException
|
|
{
|
|
if (isLeaf())
|
|
{
|
|
return name.endsWith(".sc") ? Collections.singletonList(getPath()) : Collections.emptyList();
|
|
}
|
|
fillChildren(source);
|
|
String prefix = getPath();
|
|
return children.values().stream().
|
|
filter(n -> (!n.isLeaf() || n.name.endsWith(".sc"))).
|
|
map(s -> prefix + s.pathElement().replaceAll("/$", "")).toList();
|
|
}
|
|
|
|
public StoreNode drillDown(String pathElement, CommandSourceStack source) throws IOException
|
|
{
|
|
if (isLeaf())
|
|
{
|
|
throw new IOException(pathElement + " is not a folder");
|
|
}
|
|
fillChildren(source);
|
|
if (!children.containsKey(pathElement))
|
|
{
|
|
throw new IOException("Folder " + pathElement + " is not present");
|
|
}
|
|
return children.get(pathElement);
|
|
}
|
|
|
|
public String getValue(String file, CommandSourceStack source) throws IOException
|
|
{
|
|
StoreNode leaf = drillDown(file, source);
|
|
if (!leaf.isLeaf())
|
|
{
|
|
throw new IOException(file + " is not a file");
|
|
}
|
|
return leaf.value;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This method searches for valid file names from the user-inputted string, e.g if the user has thus far typed
|
|
* {@code survival/a} then it will return all the files in the {@code survival} directory of the scarpet repo (and
|
|
* will automatically highlight those starting with a), and the string {@code survival/} as the current most valid path.
|
|
*
|
|
* @param currentPath The path down which we want to search for files
|
|
* @return A pair of the current valid path, as well as the set of all the file/directory names at the end of that path
|
|
*/
|
|
public static List<String> suggestionsFromPath(String currentPath, CommandSourceStack source) throws IOException
|
|
{
|
|
String[] path = currentPath.split("/");
|
|
StoreNode appKiosk = APP_STORE_ROOT;
|
|
for (String pathElement : path)
|
|
{
|
|
if (appKiosk.cannotContinueFor(pathElement, source))
|
|
{
|
|
break;
|
|
}
|
|
appKiosk = appKiosk.children.get(pathElement);
|
|
}
|
|
List<String> filteredSuggestions = appKiosk.createPathSuggestions(source).stream().filter(s -> s.startsWith(currentPath)).toList();
|
|
if (filteredSuggestions.size() == 1 && !appKiosk.isLeaf())
|
|
{
|
|
return suggestionsFromPath(filteredSuggestions.get(0), source); // Start suggesting directory contents
|
|
}
|
|
return filteredSuggestions;
|
|
}
|
|
|
|
|
|
/**
|
|
* Downloads script and saves it to appropriate place.
|
|
*
|
|
* @param path The user-inputted path to the script
|
|
* @return {@code 1} if we succesfully saved the script, {@code 0} otherwise
|
|
*/
|
|
|
|
public static int downloadScript(CommandSourceStack source, String path)
|
|
{
|
|
AppInfo nodeInfo = getFileNode(path, source);
|
|
return downloadScript(source, path, nodeInfo, false);
|
|
}
|
|
|
|
private static int downloadScript(CommandSourceStack source, String path, AppInfo nodeInfo, boolean useTrash)
|
|
{
|
|
String code;
|
|
try
|
|
{
|
|
code = IOUtils.toString(new URL(nodeInfo.url()), StandardCharsets.UTF_8);
|
|
}
|
|
catch (IOException e)
|
|
{
|
|
throw new CommandRuntimeException(Carpet.Messenger_compose("rb Failed to obtain app file content: " + e.getMessage()));
|
|
}
|
|
if (!saveScriptToFile(source, path, nodeInfo.name(), code, useTrash))
|
|
{
|
|
return 0;
|
|
}
|
|
return Vanilla.MinecraftServer_getScriptServer(source.getServer()).addScriptHost(source, nodeInfo.name().replaceFirst("\\.sc$", ""), null, true, false, false, nodeInfo.source(), Expression.LoadOverride.DEFAULT);
|
|
}
|
|
|
|
/**
|
|
* Gets the code once the user inputs the command.
|
|
*
|
|
* @param appPath The user inputted path to the scarpet script
|
|
* @return Pair of app file name and content
|
|
*/
|
|
public static AppInfo getFileNode(String appPath, CommandSourceStack source)
|
|
{
|
|
return getFileNodeFrom(APP_STORE_ROOT, appPath, source);
|
|
}
|
|
|
|
public static AppInfo getFileNodeFrom(StoreNode start, String appPath, CommandSourceStack source)
|
|
{
|
|
String[] path = appPath.split("/");
|
|
StoreNode appKiosk = start;
|
|
try
|
|
{
|
|
for (String pathElement : Arrays.copyOfRange(path, 0, path.length - 1))
|
|
{
|
|
appKiosk = appKiosk.drillDown(pathElement, source);
|
|
}
|
|
String appName = path[path.length - 1];
|
|
appKiosk.getValue(appName, source);
|
|
return new AppInfo(appName, appKiosk.getValue(appName, source), appKiosk);
|
|
}
|
|
catch (IOException e)
|
|
{
|
|
throw new CommandRuntimeException(Carpet.Messenger_compose("rb '" + appPath + "' is not a valid path to a scarpet app: " + e.getMessage()));
|
|
}
|
|
}
|
|
|
|
|
|
public static boolean saveScriptToFile(CommandSourceStack source, String path, String appFileName, String code, boolean useTrash)
|
|
{
|
|
Path scriptLocation = source.getServer().getWorldPath(LevelResource.ROOT).resolve("scripts").toAbsolutePath().resolve(appFileName);
|
|
try
|
|
{
|
|
Files.createDirectories(scriptLocation.getParent());
|
|
if (Files.exists(scriptLocation))
|
|
{
|
|
if (useTrash)
|
|
{
|
|
Files.createDirectories(scriptLocation.getParent().resolve("trash"));
|
|
Path trashPath = scriptLocation.getParent().resolve("trash").resolve(path);
|
|
int i = 0;
|
|
while (Files.exists(trashPath))
|
|
{
|
|
String[] nameAndExtension = appFileName.split("\\.");
|
|
String newFileName = String.format(nameAndExtension[0] + "%02d." + nameAndExtension[1], i);
|
|
trashPath = trashPath.getParent().resolve(newFileName);
|
|
i++;
|
|
}
|
|
Files.move(scriptLocation, trashPath);
|
|
}
|
|
Carpet.Messenger_message(source, String.format("gi Note: replaced existing app '%s'" + (useTrash ? " (old moved to /trash folder)" : ""), appFileName));
|
|
}
|
|
BufferedWriter writer = Files.newBufferedWriter(scriptLocation);
|
|
writer.write(code);
|
|
writer.close();
|
|
}
|
|
catch (IOException e)
|
|
{
|
|
Carpet.Messenger_message(source, "r Error while downloading app: " + e);
|
|
CarpetScriptServer.LOG.warn("Error while downloading app", e);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
public static void writeUrlToFile(String url, Path destination) throws IOException
|
|
{
|
|
try (InputStream in = new URL(url).openStream())
|
|
{
|
|
Files.copy(in, destination, StandardCopyOption.REPLACE_EXISTING);
|
|
}
|
|
}
|
|
|
|
private static String getFullContentUrl(String original, StoreNode storeSource, CommandSourceStack source)
|
|
{
|
|
if (original.matches("^https?://.*$")) // We've got a full url here: Just use it
|
|
{
|
|
return original;
|
|
}
|
|
if (original.charAt(0) == '/') // We've got an absolute path: Use app store root
|
|
{
|
|
return getFileNode(original.substring(1), source).url();
|
|
}
|
|
return getFileNodeFrom(storeSource, original, source).url(); // Relative path: Use download location
|
|
}
|
|
|
|
public static void addResource(CarpetScriptHost carpetScriptHost, StoreNode storeSource, Value resource)
|
|
{
|
|
if (!(resource instanceof final MapValue map))
|
|
{
|
|
throw new InternalExpressionException("This is not a valid resource map: " + resource.getString());
|
|
}
|
|
Map<String, Value> resourceMap = map.getMap().entrySet().stream().collect(Collectors.toMap(e -> e.getKey().getString(), Map.Entry::getValue));
|
|
if (!resourceMap.containsKey("source"))
|
|
{
|
|
throw new InternalExpressionException("Missing 'source' field in resource descriptor: " + resource.getString());
|
|
}
|
|
String source = resourceMap.get("source").getString();
|
|
String contentUrl = getFullContentUrl(source, storeSource, carpetScriptHost.responsibleSource);
|
|
String target = resourceMap.computeIfAbsent("target", k -> new StringValue(contentUrl.substring(contentUrl.lastIndexOf('/') + 1))).getString();
|
|
boolean shared = resourceMap.getOrDefault("shared", Value.FALSE).getBoolean();
|
|
|
|
if (!carpetScriptHost.applyActionForResource(target, shared, p -> {
|
|
try
|
|
{
|
|
writeUrlToFile(contentUrl, p);
|
|
}
|
|
catch (IOException e)
|
|
{
|
|
throw new InternalExpressionException("Unable to write resource " + target + ": " + e);
|
|
}
|
|
}))
|
|
{
|
|
throw new InternalExpressionException("Unable to write resource " + target);
|
|
}
|
|
CarpetScriptServer.LOG.info("Downloaded resource " + target + " from " + contentUrl);
|
|
}
|
|
|
|
/**
|
|
* Gets a new StoreNode for an app's dependency with proper relativeness. Will be null if it comes from an external URL
|
|
*
|
|
* @param originalSource The StoreNode from the container's app
|
|
* @param sourceString The string the app specified as source
|
|
* @param contentUrl The full content URL, from {@link #getFullContentUrl(String, StoreNode, CommandSourceStack)}
|
|
* @return A {@link StoreNode} that can be used in an app that came from the provided source
|
|
*/
|
|
@Nullable
|
|
private static StoreNode getNewStoreNode(CommandSourceStack commandSource, StoreNode originalSource, String sourceString, String contentUrl)
|
|
{
|
|
StoreNode next = originalSource;
|
|
if (sourceString == contentUrl) // External URL (check getFullUrlContent)
|
|
{
|
|
return null;
|
|
}
|
|
if (sourceString.charAt(0) == '/') // Absolute URL
|
|
{
|
|
next = APP_STORE_ROOT;
|
|
sourceString = sourceString.substring(1);
|
|
}
|
|
String[] dirs = sourceString.split("/");
|
|
try
|
|
{
|
|
for (int i = 0; i < dirs.length - 1; i++)
|
|
{
|
|
next = next.drillDown(dirs[i], commandSource);
|
|
}
|
|
}
|
|
catch (IOException e)
|
|
{
|
|
return null; // Should never happen, but let's not give a potentially incorrect node just in case
|
|
}
|
|
return next;
|
|
}
|
|
|
|
public static void addLibrary(CarpetScriptHost carpetScriptHost, StoreNode storeSource, Value library)
|
|
{
|
|
if (!(library instanceof final MapValue map))
|
|
{
|
|
throw new InternalExpressionException("This is not a valid library map: " + library.getString());
|
|
}
|
|
Map<String, String> libraryMap = map.getMap().entrySet().stream().collect(Collectors.toMap(e -> e.getKey().getString(), e -> e.getValue().getString()));
|
|
String source = libraryMap.get("source");
|
|
String contentUrl = getFullContentUrl(source, storeSource, carpetScriptHost.responsibleSource);
|
|
String target = libraryMap.computeIfAbsent("target", k -> contentUrl.substring(contentUrl.lastIndexOf('/') + 1));
|
|
if (!(contentUrl.endsWith(".sc") || contentUrl.endsWith(".scl")))
|
|
{
|
|
throw new InternalExpressionException("App resource type must download a scarpet app or library.");
|
|
}
|
|
if (target.indexOf('/') != -1)
|
|
{
|
|
throw new InternalExpressionException("App resource tried to leave script reserved space");
|
|
}
|
|
try
|
|
{
|
|
downloadScript(carpetScriptHost.responsibleSource, target, new AppInfo(target, contentUrl, getNewStoreNode(carpetScriptHost.responsibleSource, storeSource, source, contentUrl)), true);
|
|
}
|
|
catch (CommandRuntimeException e)
|
|
{
|
|
throw new InternalExpressionException("Error when installing app dependencies: " + e);
|
|
}
|
|
CarpetScriptServer.LOG.info("Downloaded app " + target + " from " + contentUrl);
|
|
}
|
|
|
|
public static class CommandRuntimeException extends RuntimeException {
|
|
private final Component message;
|
|
|
|
public CommandRuntimeException(Component message) {
|
|
super(message.getString(), null, false, false);
|
|
this.message = message;
|
|
}
|
|
|
|
public Component getComponent() {
|
|
return message;
|
|
}
|
|
}
|
|
}
|