Mercurial Hosting > luan
annotate src/goodjava/webserver/handlers/DirHandler.java @ 1826:3cd1d267508c default tip
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author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Sat, 24 Aug 2024 21:36:47 -0600 |
parents | d88fb2eb15aa |
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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; |
1273 | 10 import java.util.Arrays; |
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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17 |
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18 |
1168 | 19 public final class DirHandler implements Handler { |
20 private final FileHandler fileHandler; | |
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21 |
1168 | 22 public DirHandler(FileHandler fileHandler) { |
23 this.fileHandler = fileHandler; | |
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24 } |
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25 |
1273 | 26 private static final Comparator<File> sorter = new Comparator<File>() { |
27 public int compare(File f1, File f2) { | |
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28 boolean f1IsDir = f1.isDirectory(); |
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29 boolean f2IsDir = f2.isDirectory(); |
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30 if( f1IsDir && !f2IsDir ) |
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31 return -1; |
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32 if( !f1IsDir && f2IsDir ) |
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33 return 1; |
1273 | 34 return f1.getName().compareTo(f2.getName()); |
35 } | |
36 }; | |
37 | |
1168 | 38 public Response handle(Request request) { |
39 try { | |
40 File file = fileHandler.file(request); | |
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41 String path = request.path; |
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42 if( path.endsWith("/") && file.isDirectory() ) { |
1168 | 43 DateFormat fmt = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss zzz"); |
44 Response response = new Response(); | |
1607 | 45 response.headers.put( "Content-Type", "text/html; charset=utf-8" ); |
1168 | 46 Writer writer = new OutputStreamWriter( new ResponseOutputStream(response) ); |
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47 writer.write( "<!doctype html>\n<html>\n" ); |
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48 writer.write( "\t<head>\n" ); |
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49 writer.write( "\t\t<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n" ); |
1617 | 50 writer.write( "\t\t<meta name=\"robots\" content=\"noindex,nofollow\">\n" ); |
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51 writer.write( "\t\t<style>\n" ); |
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52 writer.write( "\t\t\ttd {padding: 2px 8px}\n" ); |
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53 writer.write( "\t\t\ta {text-decoration: none}\n" ); |
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54 writer.write( "\t\t\ta:hover {text-decoration: underline}\n" ); |
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55 writer.write( "\t\t</style>\n" ); |
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56 writer.write( "\t</head>\n" ); |
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57 writer.write( "\t<body>\n" ); |
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58 writer.write( "\t\t<h1>Directory: "+path+"</h1>\n" ); |
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59 writer.write( "\t\t<table border=0>\n" ); |
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60 if( !path.equals("/") ) { |
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61 writer.write( "\t\t\t<tr>\n" ); |
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62 writer.write( "\t\t\t\t<td><a href='..'>../</a></td>\n" ); |
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63 writer.write( "\t\t\t</tr>\n" ); |
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64 } |
1273 | 65 File[] a = file.listFiles(); |
66 Arrays.sort(a,sorter); | |
67 for( File child : a ) { | |
1168 | 68 String name = child.getName(); |
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69 boolean isDir = child.isDirectory(); |
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70 if( isDir ) |
1168 | 71 name += '/'; |
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72 writer.write( "\t\t\t<tr>\n" ); |
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73 writer.write( "\t\t\t\t<td><a href='"+name+"'>"+name+"</a></td>\n" ); |
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74 writer.write( "\t\t\t\t<td>"+fmt.format(new Date(child.lastModified()))+"</td>\n" ); |
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75 if( !isDir ) |
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76 writer.write( "\t\t\t\t<td align=right>"+child.length()+" bytes</td>\n" ); |
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77 writer.write( "\t\t\t</tr>\n" ); |
1168 | 78 } |
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79 writer.write( "\t\t</table>\n" ); |
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80 writer.write( "\t</body>\n" ); |
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81 writer.write( "</html>\n" ); |
1168 | 82 writer.close(); |
83 return response; | |
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84 } |
1168 | 85 return null; |
86 } catch(IOException e) { | |
87 throw new RuntimeException(e); | |
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88 } |
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89 } |
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90 } |