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annotate core/src/luan/modules/IoLuan.java @ 237:97d175772fed

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implement mmake git-svn-id: https://luan-java.googlecode.com/svn/trunk@238 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Mon, 06 Oct 2014 04:07:56 +0000
parents ec016471c6eb
children f1f7d8c7e94e
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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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34
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35 public final class IoLuan {
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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, "File", LuanState.class, String.class );
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42 add( module, "read_console_line", String.class );
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43
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44 LuanTable stdin = Luan.newTable();
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45 stdin.put( "read_text", new LuanJavaFunction(
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46 IoLuan.class.getMethod( "stdin_read_text" ), null
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47 ) );
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48 stdin.put( "read_binary", new LuanJavaFunction(
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49 IoLuan.class.getMethod( "stdin_read_binary" ), null
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50 ) );
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51 stdin.put( "read_lines", new LuanJavaFunction(
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52 IoLuan.class.getMethod( "stdin_read_lines" ), null
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53 ) );
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54 stdin.put( "read_blocks", new LuanJavaFunction(
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55 IoLuan.class.getMethod( "stdin_read_blocks", Integer.class ), null
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56 ) );
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57 module.put( "stdin", stdin );
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59 add( module, "Socket", String.class, Integer.TYPE );
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60 add( module, "socket_server", Integer.TYPE );
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61 } catch(NoSuchMethodException e) {
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62 throw new RuntimeException(e);
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63 }
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64 module.put( "stdout", textWriter(System.out) );
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65 module.put( "stderr", textWriter(System.err) );
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66 return module;
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67 }
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68 };
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70 private static void add(LuanTable t,String method,Class<?>... parameterTypes) throws NoSuchMethodException {
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71 t.put( method, new LuanJavaFunction(IoLuan.class.getMethod(method,parameterTypes),null) );
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72 }
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75 public static String stdin_read_text() throws IOException {
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76 return Utils.readAll(new InputStreamReader(System.in));
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77 }
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79 public static byte[] stdin_read_binary() throws IOException {
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80 return Utils.readAll(System.in);
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81 }
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83 public static LuanFunction stdin_read_lines() throws IOException {
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84 return lines(new BufferedReader(new InputStreamReader(System.in)));
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85 }
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87 public static LuanFunction stdin_read_blocks(Integer blockSize) throws IOException {
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88 int n = blockSize!=null ? blockSize : Utils.bufSize;
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89 return blocks(System.in,n);
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90 }
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92 public static String read_console_line(String prompt) throws IOException {
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93 if( prompt==null )
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94 prompt = "> ";
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95 return System.console().readLine(prompt);
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96 }
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99 public interface LuanWriter {
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100 public void write(LuanState luan,Object... args) throws LuanException, IOException;
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101 public void close() throws IOException;
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102 }
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103
122
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104 public static LuanTable textWriter(final PrintStream out) {
115
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105 LuanWriter luanWriter = new LuanWriter() {
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106
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107 public void write(LuanState luan,Object... args) throws LuanException {
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108 for( Object obj : args ) {
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109 out.print( luan.toString(obj) );
115
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110 }
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111 }
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112
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113 public void close() {
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114 out.close();
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115 }
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116 };
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117 return writer(luanWriter);
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118 }
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119
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120 public static LuanTable textWriter(final Writer out) {
115
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121 LuanWriter luanWriter = new LuanWriter() {
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122
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123 public void write(LuanState luan,Object... args) throws LuanException, IOException {
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124 for( Object obj : args ) {
130
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125 out.write( luan.toString(obj) );
115
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126 }
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127 }
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128
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129 public void close() throws IOException {
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130 out.close();
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131 }
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132 };
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133 return writer(luanWriter);
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134 }
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135
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136 private static LuanTable writer(LuanWriter luanWriter) {
221
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137 LuanTable writer = Luan.newTable();
115
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138 try {
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139 writer.put( "write", new LuanJavaFunction(
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140 LuanWriter.class.getMethod( "write", LuanState.class, new Object[0].getClass() ), luanWriter
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141 ) );
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142 writer.put( "close", new LuanJavaFunction(
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143 LuanWriter.class.getMethod( "close" ), luanWriter
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144 ) );
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145 } catch(NoSuchMethodException e) {
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146 throw new RuntimeException(e);
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147 }
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148 return writer;
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149 }
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150
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151
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152 public static LuanTable binaryWriter(final OutputStream out) {
221
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153 LuanTable writer = Luan.newTable();
115
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154 try {
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155 writer.put( "write", new LuanJavaFunction(
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156 OutputStream.class.getMethod( "write", new byte[0].getClass() ), out
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157 ) );
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158 writer.put( "close", new LuanJavaFunction(
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159 OutputStream.class.getMethod( "close" ), out
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160 ) );
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161 } catch(NoSuchMethodException e) {
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162 throw new RuntimeException(e);
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163 }
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164 return writer;
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165 }
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166
116
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167 static LuanFunction lines(final BufferedReader in) {
115
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168 return new LuanFunction() {
116
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169 @Override public Object call(LuanState luan,Object[] args) throws LuanException {
115
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170 try {
116
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171 if( args.length > 0 ) {
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172 if( args.length > 1 || !"close".equals(args[0]) )
130
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173 throw luan.exception( "the only argument allowed is 'close'" );
115
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174 in.close();
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175 return null;
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176 }
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177 String rtn = in.readLine();
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178 if( rtn==null )
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179 in.close();
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180 return rtn;
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181 } catch(IOException e) {
130
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182 throw luan.exception(e);
115
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183 }
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184 }
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185 };
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186 }
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187
116
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188 static LuanFunction blocks(final InputStream in,final int blockSize) {
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189 return new LuanFunction() {
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190 final byte[] a = new byte[blockSize];
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191
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192 @Override public Object call(LuanState luan,Object[] args) throws LuanException {
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193 try {
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194 if( args.length > 0 ) {
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195 if( args.length > 1 || !"close".equals(args[0]) )
130
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196 throw luan.exception( "the only argument allowed is 'close'" );
116
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197 in.close();
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198 return null;
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199 }
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200 if( in.read(a) == -1 ) {
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201 in.close();
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202 return null;
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203 }
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204 return a;
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205 } catch(IOException e) {
130
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206 throw luan.exception(e);
116
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207 }
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208 }
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209 };
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210 }
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211
125
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212
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213
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214 public static abstract class LuanIn {
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215 abstract InputStream inputStream() throws IOException;
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216 public abstract String to_string();
125
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217
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218 public String read_text() throws IOException {
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219 Reader in = new InputStreamReader(inputStream());
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220 String s = Utils.readAll(in);
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221 in.close();
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222 return s;
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223 }
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224
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225 public byte[] read_binary() throws IOException {
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226 InputStream in = inputStream();
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227 byte[] a = Utils.readAll(in);
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228 in.close();
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229 return a;
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230 }
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231
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232 public LuanFunction read_lines() throws IOException {
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233 return lines(new BufferedReader(new InputStreamReader(inputStream())));
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234 }
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235
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236 public LuanFunction read_blocks(Integer blockSize) throws IOException {
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237 int n = blockSize!=null ? blockSize : Utils.bufSize;
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238 return blocks(inputStream(),n);
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239 }
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240
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241 LuanTable table() {
221
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242 LuanTable tbl = Luan.newTable();
125
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243 try {
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244 tbl.put( "to_string", new LuanJavaFunction(
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245 LuanIn.class.getMethod( "to_string" ), this
143
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246 ) );
125
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247 tbl.put( "read_text", new LuanJavaFunction(
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248 LuanIn.class.getMethod( "read_text" ), this
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249 ) );
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250 tbl.put( "read_binary", new LuanJavaFunction(
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251 LuanIn.class.getMethod( "read_binary" ), this
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252 ) );
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253 tbl.put( "read_lines", new LuanJavaFunction(
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254 LuanIn.class.getMethod( "read_lines" ), this
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255 ) );
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256 tbl.put( "read_blocks", new LuanJavaFunction(
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257 LuanIn.class.getMethod( "read_blocks", Integer.class ), this
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258 ) );
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259 } catch(NoSuchMethodException e) {
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260 throw new RuntimeException(e);
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261 }
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262 return tbl;
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263 }
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264 }
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265
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266 public static abstract class LuanIO extends LuanIn {
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267 abstract OutputStream outputStream() throws IOException;
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268
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269 public void write(LuanState luan,Object obj) throws LuanException, IOException {
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270 if( obj instanceof String ) {
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271 String s = (String)obj;
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272 Writer out = new OutputStreamWriter(outputStream());
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273 out.write(s);
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274 out.close();
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275 return;
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276 }
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277 if( obj instanceof byte[] ) {
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278 byte[] a = (byte[])obj;
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279 OutputStream out = outputStream();
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280 Utils.copyAll(new ByteArrayInputStream(a),out);
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281 out.close();
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282 return;
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283 }
130
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284 throw luan.exception( "bad argument #1 to 'write' (string or binary expected)" );
125
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285 }
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286
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287 public LuanTable text_writer() throws IOException {
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288 return textWriter(new BufferedWriter(new OutputStreamWriter(outputStream())));
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289 }
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290
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291 public LuanTable binary_writer() throws IOException {
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292 return binaryWriter(new BufferedOutputStream(outputStream()));
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293 }
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294
129
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295 @Override LuanTable table() {
125
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296 LuanTable tbl = super.table();
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297 try {
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298 tbl.put( "write", new LuanJavaFunction(
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299 LuanIO.class.getMethod( "write", LuanState.class, Object.class ), this
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300 ) );
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301 tbl.put( "text_writer", new LuanJavaFunction(
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302 LuanIO.class.getMethod( "text_writer" ), this
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303 ) );
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304 tbl.put( "binary_writer", new LuanJavaFunction(
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305 LuanIO.class.getMethod( "binary_writer" ), this
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306 ) );
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307 } catch(NoSuchMethodException e) {
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308 throw new RuntimeException(e);
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309 }
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310 return tbl;
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311 }
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312 }
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313
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314 public static final class LuanUrl extends LuanIn {
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315 private final URL url;
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316
203
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317 private LuanUrl(URL url) throws LuanException {
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318 this.url = url;
125
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319 }
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320
144
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321 @Override InputStream inputStream() throws IOException {
125
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322 return url.openStream();
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323 }
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324
147
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325 @Override public String to_string() {
143
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326 return url.toString();
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327 }
125
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328 }
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329
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330 public static final class LuanFile extends LuanIO {
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331 private final File file;
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332
203
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333 private LuanFile(LuanState luan,File file) throws LuanException {
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334 this(file);
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335 check(luan,file.toString());
145
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336 }
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337
202
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338 private LuanFile(File file) {
145
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339 this.file = file;
125
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340 }
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341
144
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342 @Override InputStream inputStream() throws IOException {
125
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343 return new FileInputStream(file);
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344 }
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345
144
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346 @Override OutputStream outputStream() throws IOException {
125
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347 return new FileOutputStream(file);
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348 }
143
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349
147
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350 @Override public String to_string() {
143
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351 return file.toString();
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352 }
145
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353
203
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354 public LuanTable child(LuanState luan,String name) throws LuanException {
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355 return new LuanFile(luan,new File(file,name)).table();
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356 }
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357
203
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358 public LuanTable children(LuanState luan) throws LuanException {
164
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359 File[] files = file.listFiles();
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360 if( files==null )
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361 return null;
221
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362 LuanTable list = Luan.newTable();
164
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363 for( File f : files ) {
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364 list.add(new LuanFile(luan,f).table());
164
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365 }
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366 return list;
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367 }
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368
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369 public boolean exists() {
237
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370 return file.exists();
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371 }
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372
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373 @Override LuanTable table() {
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374 LuanTable tbl = super.table();
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375 try {
164
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376 tbl.put( "name", new LuanJavaFunction(
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377 File.class.getMethod( "getName" ), file
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diff changeset
378 ) );
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379 tbl.put( "exists", new LuanJavaFunction(
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diff changeset
380 LuanFile.class.getMethod( "exists" ), this
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diff changeset
381 ) );
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382 tbl.put( "is_directory", new LuanJavaFunction(
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diff changeset
383 File.class.getMethod( "isDirectory" ), file
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parents: 147
diff changeset
384 ) );
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diff changeset
385 tbl.put( "is_file", new LuanJavaFunction(
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diff changeset
386 File.class.getMethod( "isFile" ), file
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diff changeset
387 ) );
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diff changeset
388 tbl.put( "delete", new LuanJavaFunction(
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diff changeset
389 File.class.getMethod( "delete" ), file
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diff changeset
390 ) );
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diff changeset
391 tbl.put( "mkdir", new LuanJavaFunction(
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diff changeset
392 File.class.getMethod( "mkdir" ), file
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diff changeset
393 ) );
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diff changeset
394 tbl.put( "mkdirs", new LuanJavaFunction(
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diff changeset
395 File.class.getMethod( "mkdirs" ), file
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diff changeset
396 ) );
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diff changeset
397 tbl.put( "last_modified", new LuanJavaFunction(
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diff changeset
398 File.class.getMethod( "lastModified" ), file
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parents: 147
diff changeset
399 ) );
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diff changeset
400 tbl.put( "child", new LuanJavaFunction(
203
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diff changeset
401 LuanFile.class.getMethod( "child", LuanState.class, String.class ), this
164
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diff changeset
402 ) );
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diff changeset
403 tbl.put( "children", new LuanJavaFunction(
203
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diff changeset
404 LuanFile.class.getMethod( "children", LuanState.class ), this
145
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diff changeset
405 ) );
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diff changeset
406 } catch(NoSuchMethodException e) {
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diff changeset
407 throw new RuntimeException(e);
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diff changeset
408 }
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diff changeset
409 return tbl;
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diff changeset
410 }
125
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diff changeset
411 }
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diff changeset
412
143
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diff changeset
413 public static LuanIn luanIo(LuanState luan,String name) throws LuanException {
203
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414 check(luan,name);
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415 File file = Utils.toFile(name);
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diff changeset
416 if( file != null )
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417 return new LuanFile(file);
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diff changeset
418 URL url = Utils.toUrl(name);
164
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 147
diff changeset
419 if( url != null ) {
203
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diff changeset
420 return new LuanUrl(url);
143
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parents: 142
diff changeset
421 }
164
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 147
diff changeset
422 throw luan.exception( "file '"+name+"' not found" );
143
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parents: 142
diff changeset
423 }
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parents: 142
diff changeset
424
145
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parents: 144
diff changeset
425 public static LuanTable File(LuanState luan,String name) throws LuanException {
143
fcb81fa2df0d handle urls and java resources as files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 142
diff changeset
426 return luanIo(luan,name).table();
125
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parents: 124
diff changeset
427 }
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parents: 124
diff changeset
428
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
429 public static final class LuanSocket extends LuanIO {
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430 private final Socket socket;
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parents: 124
diff changeset
431
202
75750ceb45ee add LuanState.registry
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
432 private LuanSocket(String host,int port) throws IOException {
125
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433 this(new Socket(host,port));
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parents: 124
diff changeset
434 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
435
202
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
436 private LuanSocket(Socket socket) throws IOException {
125
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diff changeset
437 this.socket = socket;
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parents: 124
diff changeset
438 }
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parents: 124
diff changeset
439
144
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
440 @Override InputStream inputStream() throws IOException {
125
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diff changeset
441 return socket.getInputStream();
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parents: 124
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442 }
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parents: 124
diff changeset
443
144
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diff changeset
444 @Override OutputStream outputStream() throws IOException {
125
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parents: 124
diff changeset
445 return socket.getOutputStream();
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parents: 124
diff changeset
446 }
129
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diff changeset
447
147
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 145
diff changeset
448 @Override public String to_string() {
143
fcb81fa2df0d handle urls and java resources as files
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parents: 142
diff changeset
449 return socket.toString();
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parents: 142
diff changeset
450 }
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parents: 142
diff changeset
451
145
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 144
diff changeset
452 public LuanTable Pickle_client(LuanState luan) throws IOException {
129
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
453 DataInputStream in = new DataInputStream(new BufferedInputStream(inputStream()));
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
454 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
455 return new PickleClient(luan,in,out).table();
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
456 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
457
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
458 public void run_pickle_server(LuanState luan) throws IOException {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
459 DataInputStream in = new DataInputStream(new BufferedInputStream(inputStream()));
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
460 DataOutputStream out = new DataOutputStream(new BufferedOutputStream(outputStream()));
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parents: 125
diff changeset
461 new PickleServer(luan,in,out).run();
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parents: 125
diff changeset
462 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
463
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
464 @Override LuanTable table() {
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
465 LuanTable tbl = super.table();
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
466 try {
145
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
467 tbl.put( "Pickle_client", new LuanJavaFunction(
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 144
diff changeset
468 LuanSocket.class.getMethod( "Pickle_client", LuanState.class ), this
129
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parents: 125
diff changeset
469 ) );
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parents: 125
diff changeset
470 tbl.put( "run_pickle_server", new LuanJavaFunction(
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
471 LuanSocket.class.getMethod( "run_pickle_server", LuanState.class ), this
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
472 ) );
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
473 } catch(NoSuchMethodException e) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
474 throw new RuntimeException(e);
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parents: 125
diff changeset
475 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
476 return tbl;
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 125
diff changeset
477 }
125
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parents: 124
diff changeset
478 }
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parents: 124
diff changeset
479
145
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
480 public static LuanTable Socket(String host,int port) throws IOException {
125
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parents: 124
diff changeset
481 return new LuanSocket(host,port).table();
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parents: 124
diff changeset
482 }
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parents: 124
diff changeset
483
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
484 public static LuanFunction socket_server(int port) throws IOException {
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parents: 124
diff changeset
485 final ServerSocket ss = new ServerSocket(port);
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parents: 124
diff changeset
486 return new LuanFunction() {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
487 @Override public Object call(LuanState luan,Object[] args) throws LuanException {
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parents: 124
diff changeset
488 try {
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parents: 124
diff changeset
489 if( args.length > 0 ) {
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parents: 124
diff changeset
490 if( args.length > 1 || !"close".equals(args[0]) )
130
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diff changeset
491 throw luan.exception( "the only argument allowed is 'close'" );
125
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diff changeset
492 ss.close();
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diff changeset
493 return null;
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parents: 124
diff changeset
494 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 124
diff changeset
495 return new LuanSocket(ss.accept()).table();
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diff changeset
496 } catch(IOException e) {
130
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diff changeset
497 throw luan.exception(e);
125
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diff changeset
498 }
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parents: 124
diff changeset
499 }
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diff changeset
500 };
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parents: 124
diff changeset
501 }
136
7e160d2f6d9c update HttpLib, untested
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parents: 135
diff changeset
502
203
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parents: 202
diff changeset
503
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diff changeset
504 // security
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parents: 202
diff changeset
505
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diff changeset
506 public interface Security {
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diff changeset
507 public void check(LuanState luan,String name) throws LuanException;
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diff changeset
508 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 202
diff changeset
509
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diff changeset
510 private static String SECURITY_KEY = "Io.Security";
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parents: 202
diff changeset
511
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parents: 202
diff changeset
512 private static void check(LuanState luan,String name) throws LuanException {
204
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 203
diff changeset
513 Security s = (Security)luan.registry().get(SECURITY_KEY);
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 203
diff changeset
514 if( s!=null )
203
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diff changeset
515 s.check(luan,name);
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parents: 202
diff changeset
516 }
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517
204
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518 public static void setSecurity(LuanState luan,Security s) {
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519 luan.registry().put(SECURITY_KEY,s);
203
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520 }
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521
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522 public static class DirSecurity implements Security {
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523 private final String[] dirs;
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524
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525 public DirSecurity(LuanState luan,String[] dirs) {
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526 this.dirs = dirs;
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527 }
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528
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529 @Override public void check(LuanState luan,String name) throws LuanException {
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530 if( name.contains("..") )
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531 throw luan.exception("Security violation - '"+name+"' contains '..'");
203
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532 for( String dir : dirs ) {
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533 if( name.startsWith(dir) )
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534 return;
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535 }
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536 throw luan.exception("Security violation - '"+name+"' not in allowed directory");
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537 }
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538 }
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539
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540
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541 private void IoLuan() {} // never
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542 }