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annotate src/goodjava/webserver/handlers/DirHandler.java @ 1598:c78d6a4e2d9a

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web logging
author Franklin Schmidt <fschmidt@gmail.com>
date Sun, 04 Apr 2021 15:09:51 -0600
parents 27efb1fcbcb5
children 55d7b60c074d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 package goodjava.webserver.handlers;
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2
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3 import java.io.File;
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4 import java.io.FileInputStream;
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5 import java.io.Writer;
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6 import java.io.OutputStreamWriter;
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7 import java.io.IOException;
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8 import java.text.DateFormat;
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9 import java.text.SimpleDateFormat;
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10 import java.util.Arrays;
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11 import java.util.Comparator;
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12 import java.util.Date;
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13 import goodjava.webserver.Handler;
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14 import goodjava.webserver.Request;
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15 import goodjava.webserver.Response;
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16 import goodjava.webserver.ResponseOutputStream;
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18
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19 public final class DirHandler implements Handler {
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20 private final FileHandler fileHandler;
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21
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22 public DirHandler(FileHandler fileHandler) {
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23 this.fileHandler = fileHandler;
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24 }
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25
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26 private static final Comparator<File> sorter = new Comparator<File>() {
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27 public int compare(File f1, File f2) {
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28 return f1.getName().compareTo(f2.getName());
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29 }
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30 };
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31
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32 public Response handle(Request request) {
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33 try {
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34 File file = fileHandler.file(request);
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35 if( request.path.endsWith("/") && file.isDirectory() ) {
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36 DateFormat fmt = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss zzz");
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37 Response response = new Response();
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38 response.headers.put( "content-type", "text/html; charset=utf-8" );
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39 Writer writer = new OutputStreamWriter( new ResponseOutputStream(response) );
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40 writer.write( "<!doctype html><html>" );
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41 writer.write( "<head><style>td{padding: 2px 8px}</style></head>" );
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42 writer.write( "<body>" );
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43 writer.write( "<h1>Directory: "+request.path+"</h1>" );
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44 writer.write( "<table border=0>" );
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45 File[] a = file.listFiles();
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46 Arrays.sort(a,sorter);
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47 for( File child : a ) {
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48 String name = child.getName();
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49 if( child.isDirectory() )
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50 name += '/';
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51 writer.write( "<tr>" );
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52 writer.write( "<td><a href='"+name+"'>"+name+"</a></td>" );
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53 writer.write( "<td>"+child.length()+" bytes</td>" );
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54 writer.write( "<td>"+fmt.format(new Date(child.lastModified()))+"</td>" );
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55 writer.write( "</tr>" );
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56 }
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57 writer.write( "</table>" );
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58 writer.write( "</body>" );
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59 writer.write( "</html>" );
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60 writer.close();
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61 return response;
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62 }
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63 return null;
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64 } catch(IOException e) {
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65 throw new RuntimeException(e);
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66 }
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67 }
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68 }