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annotate core/src/luan/modules/IoLuan.java @ 262:3ccc5205d04d

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add "socket" protocol git-svn-id: https://luan-java.googlecode.com/svn/trunk@263 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Tue, 28 Oct 2014 23:54:41 +0000
parents 715c4a6e1169
children 54873a389f80
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1 package luan.modules;
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2
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3 import java.io.InputStream;
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4 import java.io.OutputStream;
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5 import java.io.PrintStream;
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6 import java.io.Reader;
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7 import java.io.Writer;
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8 import java.io.BufferedReader;
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9 import java.io.BufferedWriter;
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10 import java.io.BufferedInputStream;
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11 import java.io.BufferedOutputStream;
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12 import java.io.File;
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13 import java.io.FileInputStream;
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14 import java.io.FileOutputStream;
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15 import java.io.InputStreamReader;
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16 import java.io.OutputStreamWriter;
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17 import java.io.ByteArrayInputStream;
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18 import java.io.DataInputStream;
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19 import java.io.DataOutputStream;
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20 import java.io.IOException;
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21 import java.net.URL;
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22 import java.net.Socket;
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23 import java.net.ServerSocket;
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24 import java.net.MalformedURLException;
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25 import java.util.List;
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26 import java.util.ArrayList;
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27 import luan.Luan;
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28 import luan.LuanState;
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29 import luan.LuanTable;
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30 import luan.LuanFunction;
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31 import luan.LuanJavaFunction;
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32 import luan.LuanException;
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33
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34
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35 public final class IoLuan {
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36
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37 public static final LuanFunction LOADER = new LuanFunction() {
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38 @Override public Object call(LuanState luan,Object[] args) {
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39 LuanTable module = Luan.newTable();
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40 try {
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41 add( module, "read_console_line", String.class );
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42 module.put( "protocols", newProtocols() );
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43 add( module, "get", LuanState.class, String.class );
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44 module.put( "stdin", stdin.table() );
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45 add( module, "socket_server", Integer.TYPE );
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46 } catch(NoSuchMethodException e) {
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47 throw new RuntimeException(e);
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48 }
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49 module.put( "stdout", textWriter(System.out) );
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50 module.put( "stderr", textWriter(System.err) );
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51 return module;
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52 }
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53 };
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54
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55 private static void add(LuanTable t,String method,Class<?>... parameterTypes) throws NoSuchMethodException {
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56 t.put( method, new LuanJavaFunction(IoLuan.class.getMethod(method,parameterTypes),null) );
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57 }
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60 public static String read_console_line(String prompt) throws IOException {
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61 if( prompt==null )
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62 prompt = "> ";
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63 return System.console().readLine(prompt);
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64 }
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65
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67 public interface LuanWriter {
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68 public void write(LuanState luan,Object... args) throws LuanException, IOException;
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69 public void close() throws IOException;
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70 }
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72 public static LuanTable textWriter(final PrintStream out) {
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73 LuanWriter luanWriter = new LuanWriter() {
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75 public void write(LuanState luan,Object... args) throws LuanException {
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76 for( Object obj : args ) {
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77 out.print( luan.toString(obj) );
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78 }
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79 }
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81 public void close() {
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82 out.close();
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83 }
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84 };
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85 return writer(luanWriter);
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86 }
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87
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88 public static LuanTable textWriter(final Writer out) {
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89 LuanWriter luanWriter = new LuanWriter() {
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91 public void write(LuanState luan,Object... args) throws LuanException, IOException {
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92 for( Object obj : args ) {
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93 out.write( luan.toString(obj) );
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94 }
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95 }
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97 public void close() throws IOException {
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98 out.close();
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99 }
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100 };
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101 return writer(luanWriter);
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102 }
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103
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104 private static LuanTable writer(LuanWriter luanWriter) {
221
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105 LuanTable writer = Luan.newTable();
115
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106 try {
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107 writer.put( "write", new LuanJavaFunction(
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108 LuanWriter.class.getMethod( "write", LuanState.class, new Object[0].getClass() ), luanWriter
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109 ) );
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110 writer.put( "close", new LuanJavaFunction(
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111 LuanWriter.class.getMethod( "close" ), luanWriter
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112 ) );
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113 } catch(NoSuchMethodException e) {
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114 throw new RuntimeException(e);
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115 }
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116 return writer;
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117 }
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118
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119
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120 public static LuanTable binaryWriter(final OutputStream out) {
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121 LuanTable writer = Luan.newTable();
115
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122 try {
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123 writer.put( "write", new LuanJavaFunction(
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124 OutputStream.class.getMethod( "write", new byte[0].getClass() ), out
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125 ) );
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126 writer.put( "close", new LuanJavaFunction(
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127 OutputStream.class.getMethod( "close" ), out
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128 ) );
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129 } catch(NoSuchMethodException e) {
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130 throw new RuntimeException(e);
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131 }
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132 return writer;
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133 }
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134
116
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135 static LuanFunction lines(final BufferedReader in) {
115
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136 return new LuanFunction() {
116
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137 @Override public Object call(LuanState luan,Object[] args) throws LuanException {
115
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138 try {
116
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139 if( args.length > 0 ) {
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140 if( args.length > 1 || !"close".equals(args[0]) )
130
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141 throw luan.exception( "the only argument allowed is 'close'" );
115
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142 in.close();
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143 return null;
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144 }
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145 String rtn = in.readLine();
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146 if( rtn==null )
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147 in.close();
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148 return rtn;
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149 } catch(IOException e) {
130
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150 throw luan.exception(e);
115
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151 }
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152 }
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153 };
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154 }
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155
116
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156 static LuanFunction blocks(final InputStream in,final int blockSize) {
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157 return new LuanFunction() {
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158 final byte[] a = new byte[blockSize];
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159
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160 @Override public Object call(LuanState luan,Object[] args) throws LuanException {
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161 try {
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162 if( args.length > 0 ) {
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163 if( args.length > 1 || !"close".equals(args[0]) )
130
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164 throw luan.exception( "the only argument allowed is 'close'" );
116
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165 in.close();
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166 return null;
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167 }
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168 if( in.read(a) == -1 ) {
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169 in.close();
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170 return null;
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171 }
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172 return a;
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173 } catch(IOException e) {
130
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174 throw luan.exception(e);
116
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175 }
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176 }
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177 };
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178 }
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179
125
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180
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181
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182 public static abstract class LuanIn {
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183 abstract InputStream inputStream() throws IOException;
147
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184 public abstract String to_string();
125
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185
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186 public String read_text() throws IOException {
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187 Reader in = new InputStreamReader(inputStream());
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188 String s = Utils.readAll(in);
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189 in.close();
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190 return s;
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191 }
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192
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193 public byte[] read_binary() throws IOException {
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194 InputStream in = inputStream();
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195 byte[] a = Utils.readAll(in);
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196 in.close();
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197 return a;
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198 }
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199
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200 public LuanFunction read_lines() throws IOException {
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201 return lines(new BufferedReader(new InputStreamReader(inputStream())));
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202 }
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203
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204 public LuanFunction read_blocks(Integer blockSize) throws IOException {
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205 int n = blockSize!=null ? blockSize : Utils.bufSize;
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206 return blocks(inputStream(),n);
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207 }
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208
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209 LuanTable table() {
221
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210 LuanTable tbl = Luan.newTable();
125
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211 try {
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212 tbl.put( "to_string", new LuanJavaFunction(
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213 LuanIn.class.getMethod( "to_string" ), this
143
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214 ) );
125
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215 tbl.put( "read_text", new LuanJavaFunction(
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216 LuanIn.class.getMethod( "read_text" ), this
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217 ) );
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218 tbl.put( "read_binary", new LuanJavaFunction(
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219 LuanIn.class.getMethod( "read_binary" ), this
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220 ) );
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221 tbl.put( "read_lines", new LuanJavaFunction(
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222 LuanIn.class.getMethod( "read_lines" ), this
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223 ) );
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224 tbl.put( "read_blocks", new LuanJavaFunction(
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225 LuanIn.class.getMethod( "read_blocks", Integer.class ), this
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226 ) );
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227 } catch(NoSuchMethodException e) {
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228 throw new RuntimeException(e);
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229 }
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230 return tbl;
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231 }
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232 }
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233
261
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234 private static final LuanIn stdin = new LuanIn() {
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235
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236 @Override InputStream inputStream() {
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237 return System.in;
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238 }
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239
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240 @Override public String to_string() {
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241 return "<stdin>";
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242 }
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243
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244 @Override public String read_text() throws IOException {
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245 return Utils.readAll(new InputStreamReader(System.in));
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246 }
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247
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248 @Override public byte[] read_binary() throws IOException {
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249 return Utils.readAll(System.in);
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250 }
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251 };
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252
125
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253 public static abstract class LuanIO extends LuanIn {
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254 abstract OutputStream outputStream() throws IOException;
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255
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256 public void write(LuanState luan,Object obj) throws LuanException, IOException {
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257 if( obj instanceof String ) {
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258 String s = (String)obj;
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259 Writer out = new OutputStreamWriter(outputStream());
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260 out.write(s);
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261 out.close();
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262 return;
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263 }
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264 if( obj instanceof byte[] ) {
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265 byte[] a = (byte[])obj;
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266 OutputStream out = outputStream();
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267 Utils.copyAll(new ByteArrayInputStream(a),out);
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268 out.close();
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269 return;
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270 }
130
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271 throw luan.exception( "bad argument #1 to 'write' (string or binary expected)" );
125
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272 }
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273
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274 public LuanTable text_writer() throws IOException {
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275 return textWriter(new BufferedWriter(new OutputStreamWriter(outputStream())));
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276 }
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277
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278 public LuanTable binary_writer() throws IOException {
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279 return binaryWriter(new BufferedOutputStream(outputStream()));
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280 }
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281
129
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282 @Override LuanTable table() {
125
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283 LuanTable tbl = super.table();
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284 try {
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285 tbl.put( "write", new LuanJavaFunction(
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286 LuanIO.class.getMethod( "write", LuanState.class, Object.class ), this
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287 ) );
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288 tbl.put( "text_writer", new LuanJavaFunction(
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289 LuanIO.class.getMethod( "text_writer" ), this
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290 ) );
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291 tbl.put( "binary_writer", new LuanJavaFunction(
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292 LuanIO.class.getMethod( "binary_writer" ), this
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293 ) );
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294 } catch(NoSuchMethodException e) {
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295 throw new RuntimeException(e);
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296 }
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297 return tbl;
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298 }
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299 }
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300
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301 public static final class LuanUrl extends LuanIn {
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302 private final URL url;
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303
203
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304 private LuanUrl(URL url) throws LuanException {
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305 this.url = url;
125
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306 }
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307
144
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308 @Override InputStream inputStream() throws IOException {
125
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309 return url.openStream();
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310 }
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311
147
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312 @Override public String to_string() {
143
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313 return url.toString();
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314 }
125
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315 }
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316
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317 public static final class LuanFile extends LuanIO {
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318 private final File file;
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319
203
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320 private LuanFile(LuanState luan,File file) throws LuanException {
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321 this(file);
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322 check(luan,file.toString());
145
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323 }
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324
202
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325 private LuanFile(File file) {
145
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326 this.file = file;
125
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327 }
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328
144
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329 @Override InputStream inputStream() throws IOException {
125
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330 return new FileInputStream(file);
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331 }
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332
144
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333 @Override OutputStream outputStream() throws IOException {
125
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334 return new FileOutputStream(file);
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335 }
143
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336
147
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337 @Override public String to_string() {
143
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338 return file.toString();
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339 }
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340
203
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341 public LuanTable child(LuanState luan,String name) throws LuanException {
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342 return new LuanFile(luan,new File(file,name)).table();
164
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343 }
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344
203
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345 public LuanTable children(LuanState luan) throws LuanException {
164
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346 File[] files = file.listFiles();
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347 if( files==null )
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348 return null;
221
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349 LuanTable list = Luan.newTable();
164
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350 for( File f : files ) {
203
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351 list.add(new LuanFile(luan,f).table());
164
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352 }
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353 return list;
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354 }
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355
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356 public boolean exists() {
237
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357 return file.exists();
145
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358 }
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359
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360 @Override LuanTable table() {
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361 LuanTable tbl = super.table();
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362 try {
164
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363 tbl.put( "name", new LuanJavaFunction(
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364 File.class.getMethod( "getName" ), file
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diff changeset
365 ) );
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366 tbl.put( "exists", new LuanJavaFunction(
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diff changeset
367 LuanFile.class.getMethod( "exists" ), this
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368 ) );
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369 tbl.put( "is_directory", new LuanJavaFunction(
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370 File.class.getMethod( "isDirectory" ), file
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diff changeset
371 ) );
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372 tbl.put( "is_file", new LuanJavaFunction(
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373 File.class.getMethod( "isFile" ), file
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diff changeset
374 ) );
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375 tbl.put( "delete", new LuanJavaFunction(
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diff changeset
376 File.class.getMethod( "delete" ), file
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diff changeset
377 ) );
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378 tbl.put( "mkdir", new LuanJavaFunction(
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diff changeset
379 File.class.getMethod( "mkdir" ), file
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diff changeset
380 ) );
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381 tbl.put( "mkdirs", new LuanJavaFunction(
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diff changeset
382 File.class.getMethod( "mkdirs" ), file
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diff changeset
383 ) );
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diff changeset
384 tbl.put( "last_modified", new LuanJavaFunction(
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385 File.class.getMethod( "lastModified" ), file
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diff changeset
386 ) );
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diff changeset
387 tbl.put( "child", new LuanJavaFunction(
203
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388 LuanFile.class.getMethod( "child", LuanState.class, String.class ), this
164
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diff changeset
389 ) );
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diff changeset
390 tbl.put( "children", new LuanJavaFunction(
203
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diff changeset
391 LuanFile.class.getMethod( "children", LuanState.class ), this
145
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diff changeset
392 ) );
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diff changeset
393 } catch(NoSuchMethodException e) {
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394 throw new RuntimeException(e);
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diff changeset
395 }
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diff changeset
396 return tbl;
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diff changeset
397 }
125
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diff changeset
398 }
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diff changeset
399
260
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diff changeset
400 public static LuanTable file(LuanState luan,String name) throws LuanException {
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diff changeset
401 File file = new File(name);
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diff changeset
402 if( !file.exists() )
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diff changeset
403 return null;
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diff changeset
404 return new LuanFile(file).table();
143
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diff changeset
405 }
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diff changeset
406
260
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diff changeset
407 public static LuanTable classpath(LuanState luan,String path) throws LuanException {
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diff changeset
408 if( path.contains("//") )
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diff changeset
409 return null;
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diff changeset
410 URL url;
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diff changeset
411 if( !path.contains("#") ) {
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diff changeset
412 url = ClassLoader.getSystemResource(path);
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diff changeset
413 } else {
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diff changeset
414 String[] a = path.split("#");
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
415 url = ClassLoader.getSystemResource(a[0]);
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
416 if( url==null ) {
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
417 for( int i=1; i<a.length; i++ ) {
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
418 url = ClassLoader.getSystemResource(a[0]+"/"+a[i]);
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
419 if( url != null ) {
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
420 try {
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
421 url = new URL(url,".");
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
422 } catch(MalformedURLException e) {
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
423 throw new RuntimeException(e);
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
424 }
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
425 break;
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
426 }
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
427 }
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
428 }
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
429 }
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
430 if( url == null )
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
431 return null;
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
432 return new LuanUrl(url).table();
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
433 }
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
434
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
435 private static LuanTable newProtocols() {
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
436 LuanTable protocols = Luan.newTable();
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
437 try {
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
438 add( protocols, "file", LuanState.class, String.class );
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
439 add( protocols, "classpath", LuanState.class, String.class );
262
3ccc5205d04d add "socket" protocol
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 261
diff changeset
440 add( protocols, "socket", LuanState.class, String.class );
260
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
441 } catch(NoSuchMethodException e) {
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
442 throw new RuntimeException(e);
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
443 }
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
444 return protocols;
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
445 }
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
446
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
447 private static LuanTable protocols(LuanState luan) {
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
448 LuanTable t = (LuanTable)PackageLuan.loaded(luan).get("Io");
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
449 if( t == null )
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
450 return newProtocols();
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
451 t = (LuanTable)t.get("protocols");
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
452 if( t == null )
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
453 return newProtocols();
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
454 return t;
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
455 }
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
456
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
457 public static LuanTable get(LuanState luan,String name) throws LuanException {
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
458 int i = name.indexOf(':');
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
459 if( i == -1 )
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
460 throw luan.exception( "invalid IO name '"+name+"', missing protocol" );
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
461 String protocol = name.substring(0,i);
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
462 String location = name.substring(i+1);
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
463 LuanTable protocols = protocols(luan);
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
464 LuanFunction opener = (LuanFunction)protocols.get(protocol);
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
465 if( opener == null )
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
466 throw luan.exception( "invalid protocol '"+protocol+"' in '"+name+"'" );
f1f7d8c7e94e add Io.protocols
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 237
diff changeset
467 return (LuanTable)Luan.first(luan.call(opener,"<open \""+name+"\">",new Object[]{location}));
125
0cd559a16758 add sockets
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
468 }
0cd559a16758 add sockets
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
469
0cd559a16758 add sockets
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
470 public static final class LuanSocket extends LuanIO {
0cd559a16758 add sockets
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
471 private final Socket socket;
0cd559a16758 add sockets
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
472
202
75750ceb45ee add LuanState.registry
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 171
diff changeset
473 private LuanSocket(String host,int port) throws IOException {
125
0cd559a16758 add sockets
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
474 this(new Socket(host,port));
0cd559a16758 add sockets
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
475 }
0cd559a16758 add sockets
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
476
202
75750ceb45ee add LuanState.registry
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 171
diff changeset
477 private LuanSocket(Socket socket) throws IOException {
125
0cd559a16758 add sockets
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
478 this.socket = socket;
0cd559a16758 add sockets
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
479 }
0cd559a16758 add sockets
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
480
144
2e92f0a6fcac add Reactionary.luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 143
diff changeset
481 @Override InputStream inputStream() throws IOException {
125
0cd559a16758 add sockets
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
482 return socket.getInputStream();
0cd559a16758 add sockets
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
483 }
0cd559a16758 add sockets
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
484
144
2e92f0a6fcac add Reactionary.luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 143
diff changeset
485 @Override OutputStream outputStream() throws IOException {
125
0cd559a16758 add sockets
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
486 return socket.getOutputStream();
0cd559a16758 add sockets
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
487 }
129
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
488
147
cc3a0578edac fix Io.reverse_pickle
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 145
diff changeset
489 @Override public String to_string() {
143
fcb81fa2df0d handle urls and java resources as files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 142
diff changeset
490 return socket.toString();
fcb81fa2df0d handle urls and java resources as files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 142
diff changeset
491 }
fcb81fa2df0d handle urls and java resources as files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 142
diff changeset
492
145
90f38a5d0e0a add Os.File
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 144
diff changeset
493 public LuanTable Pickle_client(LuanState luan) throws IOException {
129
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
494 DataInputStream in = new DataInputStream(new BufferedInputStream(inputStream()));
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
495 DataOutputStream out = new DataOutputStream(new BufferedOutputStream(outputStream()));
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
496 return new PickleClient(luan,in,out).table();
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
497 }
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
498
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
499 public void run_pickle_server(LuanState luan) throws IOException {
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
500 DataInputStream in = new DataInputStream(new BufferedInputStream(inputStream()));
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
501 DataOutputStream out = new DataOutputStream(new BufferedOutputStream(outputStream()));
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
502 new PickleServer(luan,in,out).run();
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
503 }
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
504
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
505 @Override LuanTable table() {
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
506 LuanTable tbl = super.table();
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
507 try {
145
90f38a5d0e0a add Os.File
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 144
diff changeset
508 tbl.put( "Pickle_client", new LuanJavaFunction(
90f38a5d0e0a add Os.File
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 144
diff changeset
509 LuanSocket.class.getMethod( "Pickle_client", LuanState.class ), this
129
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
510 ) );
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
511 tbl.put( "run_pickle_server", new LuanJavaFunction(
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
512 LuanSocket.class.getMethod( "run_pickle_server", LuanState.class ), this
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
513 ) );
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
514 } catch(NoSuchMethodException e) {
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515 throw new RuntimeException(e);
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516 }
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517 return tbl;
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518 }
125
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519 }
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520
262
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521 public static LuanTable socket(LuanState luan,String name) throws LuanException, IOException {
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522 int i = name.indexOf(':');
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523 if( i == -1 )
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524 throw luan.exception( "invalid socket '"+name+"', format is: <host>:<port>" );
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525 String host = name.substring(0,i);
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526 String portStr = name.substring(i+1);
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527 int port = Integer.parseInt(portStr);
125
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528 return new LuanSocket(host,port).table();
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529 }
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530
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531 public static LuanFunction socket_server(int port) throws IOException {
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532 final ServerSocket ss = new ServerSocket(port);
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533 return new LuanFunction() {
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534 @Override public Object call(LuanState luan,Object[] args) throws LuanException {
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535 try {
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536 if( args.length > 0 ) {
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537 if( args.length > 1 || !"close".equals(args[0]) )
130
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538 throw luan.exception( "the only argument allowed is 'close'" );
125
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539 ss.close();
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540 return null;
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541 }
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542 return new LuanSocket(ss.accept()).table();
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543 } catch(IOException e) {
130
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544 throw luan.exception(e);
125
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545 }
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546 }
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547 };
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548 }
136
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549
203
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550
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551 // security
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552
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553 public interface Security {
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554 public void check(LuanState luan,String name) throws LuanException;
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555 }
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556
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557 private static String SECURITY_KEY = "Io.Security";
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558
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559 private static void check(LuanState luan,String name) throws LuanException {
204
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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560 Security s = (Security)luan.registry().get(SECURITY_KEY);
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 203
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561 if( s!=null )
203
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562 s.check(luan,name);
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563 }
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564
204
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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565 public static void setSecurity(LuanState luan,Security s) {
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parents: 203
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566 luan.registry().put(SECURITY_KEY,s);
203
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567 }
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parents: 202
diff changeset
568
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parents: 202
diff changeset
569 public static class DirSecurity implements Security {
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570 private final String[] dirs;
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571
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parents: 202
diff changeset
572 public DirSecurity(LuanState luan,String[] dirs) {
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diff changeset
573 this.dirs = dirs;
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574 }
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parents: 202
diff changeset
575
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parents: 202
diff changeset
576 @Override public void check(LuanState luan,String name) throws LuanException {
220
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 204
diff changeset
577 if( name.contains("..") )
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
578 throw luan.exception("Security violation - '"+name+"' contains '..'");
203
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parents: 202
diff changeset
579 for( String dir : dirs ) {
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580 if( name.startsWith(dir) )
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diff changeset
581 return;
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parents: 202
diff changeset
582 }
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parents: 202
diff changeset
583 throw luan.exception("Security violation - '"+name+"' not in allowed directory");
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parents: 202
diff changeset
584 }
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parents: 202
diff changeset
585 }
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parents: 202
diff changeset
586
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parents: 202
diff changeset
587
168
ebe9db183eb7 rename *Lib.java to *Luan.java
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parents: 167
diff changeset
588 private void IoLuan() {} // never
115
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parents:
diff changeset
589 }