package com.planet_ink.siplet.support; import java.applet.*; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.net.*; import java.nio.charset.Charset; import java.util.*; import java.util.Map.Entry; import com.planet_ink.coffee_mud.Common.interfaces.Session; import com.planet_ink.siplet.applet.Siplet; import com.planet_ink.siplet.support.MiniJSON.JSONObject; import com.planet_ink.siplet.support.MiniJSON.MJSONException; /* Copyright 2000-2016 Bo Zimmerman 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. */ @SuppressWarnings({ "unchecked", "rawtypes" }) public class MSDP { public MSDP() { super(); } public int process(StringBuffer buf, int i, Siplet applet, boolean useExternal) { return 0; } protected Object msdpStringify(Object o) { if (o instanceof StringBuilder) return ((StringBuilder) o).toString(); else if (o instanceof Map) { final Map<String, Object> newO = new HashMap<String, Object>(); for (final Object key : ((Map) o).keySet()) { if (key instanceof StringBuilder) newO.put(((StringBuilder) key).toString().toUpperCase(), msdpStringify(((Map) o).get(key))); } return newO; } else if (o instanceof List) { final List<Object> newO = new LinkedList<Object>(); for (final Object subO : (List) o) newO.add(msdpStringify(subO)); return newO; } else return o; } protected Map<String, Object> buildMsdpMap(byte[] data, int dataSize) { final Stack<Object> stack = new Stack<Object>(); stack.push(new HashMap<StringBuilder, Object>()); StringBuilder str = null; StringBuilder var = null; StringBuilder valVar = null; int x = -1; while (++x < dataSize) { switch (data[x]) { case Session.MSDP_VAR: // start a string str = new StringBuilder(""); var = str; if (stack.peek() instanceof Map) ((Map) stack.peek()).put(str, ""); else if (stack.peek() instanceof List) ((List) stack.peek()).add(str); break; case Session.MSDP_VAL: { valVar = var; var = null; str = new StringBuilder(""); break; } case Session.MSDP_TABLE_OPEN: // open a table { final Map<StringBuilder, Object> M = new HashMap<StringBuilder, Object>(); if ((stack.peek() instanceof Map) && (valVar != null)) ((Map) stack.peek()).put(valVar, M); else if (stack.peek() instanceof List) ((List) stack.peek()).add(M); valVar = null; stack.push(M); break; } case Session.MSDP_TABLE_CLOSE: // done with table if ((stack.size() > 1) && (stack.peek() instanceof Map)) stack.pop(); break; case Session.MSDP_ARRAY_OPEN: // open an array { final List<Object> M = new LinkedList<Object>(); if ((stack.peek() instanceof Map) && (valVar != null)) ((Map) stack.peek()).put(valVar, M); else if (stack.peek() instanceof List) ((List) stack.peek()).add(M); valVar = null; stack.push(M); break; } case Session.MSDP_ARRAY_CLOSE: // close an array if ((stack.size() > 1) && (stack.peek() instanceof List)) stack.pop(); break; default: if ((stack.peek() instanceof Map) && (valVar != null)) ((Map) stack.peek()).put(valVar, str); else if ((stack.peek() instanceof List) && (!((List) stack.peek()).contains(str))) ((List) stack.peek()).add(str); valVar = null; if (str != null) str.append((char) data[x]); break; } } return (Map<String, Object>) msdpStringify(stack.firstElement()); } public String msdpOutput(Object o, int indentions) { final String spaces = new String(new char[indentions * 2]).replace('\0', ' '); if (o instanceof String) return "\"" + o.toString() + "\""; else if (o instanceof List) { final StringBuilder json = new StringBuilder("[\n"); for (final Object o2 : ((List) o)) json.append(msdpOutput(o2, indentions + 1)).append(", "); json.append("\n").append(spaces).append("]"); return json.toString(); } else if (o instanceof Map) { final StringBuilder json = new StringBuilder("{\n"); for (final Entry<String, Object> e : ((Map<String, Object>) o).entrySet()) { json.append(spaces).append("\"").append(e.getKey()).append("\": "); json.append(msdpOutput(e.getValue(), indentions + 1)).append(", \n"); } json.append("\n").append(spaces).append("}"); return json.toString(); } return ""; } public String msdpReceive(byte[] buffer) { final Map<String, Object> map = buildMsdpMap(buffer, buffer.length); return msdpOutput(map, 0); } private byte[] getMsdpFromJsonObject(JSONObject obj) throws IOException { final ByteArrayOutputStream bout = new ByteArrayOutputStream(); for (final String key : obj.keySet()) { final Object o = obj.get(key); bout.write((byte) 1); // var bout.write(key.getBytes(Charset.forName("US-ASCII"))); bout.write((byte) 2); // val bout.write(getMsdpFromJsonSomething(o)); } return bout.toByteArray(); } private byte[] getMsdpFromJsonArray(Object[] obj) throws IOException { final ByteArrayOutputStream bout = new ByteArrayOutputStream(); for (final Object o : obj) { bout.write((byte) 2); // val bout.write(getMsdpFromJsonSomething(o)); } return bout.toByteArray(); } private byte[] getMsdpFromJsonSomething(Object obj) throws IOException { final ByteArrayOutputStream bout = new ByteArrayOutputStream(); if (obj instanceof String) bout.write(((String) obj).getBytes(Charset.forName("US-ASCII"))); else if (obj instanceof JSONObject) { bout.write((byte) 3); // table open bout.write(getMsdpFromJsonObject((JSONObject) obj)); bout.write((byte) 4); // table close } else if (obj instanceof Object[]) { bout.write((byte) 5); // array open bout.write(getMsdpFromJsonArray((Object[]) obj)); bout.write((byte) 6); // array close } return bout.toByteArray(); } public byte[] convertStringToMsdp(String data) throws MJSONException { try { final ByteArrayOutputStream bout = new ByteArrayOutputStream(); bout.write(TelnetFilter.IAC_); bout.write(TelnetFilter.IAC_SB); bout.write(TelnetFilter.IAC_MSDP); final MiniJSON jsonParser = new MiniJSON(); final JSONObject obj = jsonParser.parseObject(data); bout.write(getMsdpFromJsonObject(obj)); bout.write(TelnetFilter.IAC_); bout.write(TelnetFilter.IAC_SE); return bout.toByteArray(); } catch (final IOException e) { return new byte[0]; } } }