Mercurial Hosting > luan
annotate src/luan/webserver/Connection.java @ 1207:59289af20d9a
better webserver logging
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Wed, 07 Mar 2018 16:48:32 -0700 |
parents | 9d3835e88204 |
children | 85aa7961239a |
rev | line source |
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1137 | 1 package luan.webserver; |
2 | |
3 import java.io.InputStream; | |
4 import java.io.OutputStream; | |
5 import java.io.IOException; | |
6 import java.net.Socket; | |
7 import org.slf4j.Logger; | |
8 import org.slf4j.LoggerFactory; | |
9 import luan.lib.parser.ParseException; | |
10 | |
11 | |
12 final class Connection { | |
13 private static final Logger logger = LoggerFactory.getLogger(Connection.class); | |
14 | |
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15 static void handle(Server server,Socket socket) { |
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16 new Connection(server,socket).handle(); |
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17 } |
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18 |
1137 | 19 private final Server server; |
20 private final Socket socket; | |
21 | |
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22 private Connection(Server server,Socket socket) { |
1137 | 23 this.server = server; |
24 this.socket = socket; | |
25 } | |
26 | |
27 private void handle() { | |
28 try { | |
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29 Request request = new Request(); |
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30 Response response; |
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31 try { |
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32 { |
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33 InputStream in = socket.getInputStream(); |
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34 byte[] a = new byte[8192]; |
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35 int endOfHeader; |
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36 int size = 0; |
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37 int left = a.length; |
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38 outer: while(true) { |
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39 int n = in.read(a,size,left); |
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40 if( n == -1 ) { |
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41 if( size == 0 ) { |
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42 socket.close(); |
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43 return; |
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44 } |
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45 throw new IOException("unexpected end of input at "+size); |
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46 } |
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47 size += n; |
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48 for( int i=0; i<=size-4; i++ ) { |
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49 if( a[i]=='\r' && a[i+1]=='\n' && a[i+2]=='\r' && a[i+3]=='\n' ) { |
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50 endOfHeader = i + 4; |
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51 break outer; |
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52 } |
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53 } |
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54 left -= n; |
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55 if( left == 0 ) { |
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56 byte[] a2 = new byte[2*a.length]; |
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57 System.arraycopy(a,0,a2,0,size); |
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58 a = a2; |
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59 left = a.length - size; |
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60 } |
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61 } |
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62 String rawHead = new String(a,0,endOfHeader); |
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63 //System.out.println(rawHead); |
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64 request.rawHead = rawHead; |
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65 RequestParser parser = new RequestParser(request); |
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66 parser.parseHead(); |
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67 |
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68 String lenStr = (String)request.headers.get("content-length"); |
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69 if( lenStr != null ) { |
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70 int len = Integer.parseInt(lenStr); |
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71 byte[] body = new byte[len]; |
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72 size -= endOfHeader; |
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73 System.arraycopy(a,endOfHeader,body,0,size); |
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74 while( size < len ) { |
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75 int n = in.read(body,size,len-size); |
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76 if( n == -1 ) { |
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77 throw new IOException("unexpected end of input at "+size); |
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78 } |
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79 size += n; |
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80 } |
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81 request.body = body; |
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82 //System.out.println(new String(request.body)); |
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83 } |
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84 |
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85 String contentType = (String)request.headers.get("content-type"); |
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86 if( contentType != null ) { |
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87 if( "application/x-www-form-urlencoded".equals(contentType) ) { |
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88 parser.parseUrlencoded(); |
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89 } else if( contentType.startsWith("multipart/form-data;") ) { |
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90 parser.parseMultipart(); |
1145 | 91 } else { |
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92 logger.warn("unknown request content-type: "+contentType); |
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94 } |
1137 | 95 } |
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96 response = server.handler.handle(request); |
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97 } catch(ParseException e) { |
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98 logger.error("parse error\n"+request.rawHead.trim()+"\n",e); |
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99 response = Response.errorResponse(Status.BAD_REQUEST,e.toString()); |
1137 | 100 } |
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101 response.headers.put("connection","close"); |
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102 response.headers.put("content-length",Long.toString(response.body.length)); |
1137 | 103 byte[] header = response.toHeaderString().getBytes(); |
104 | |
105 OutputStream out = socket.getOutputStream(); | |
106 out.write(header); | |
107 copyAll(response.body.content,out); | |
108 out.close(); | |
109 socket.close(); | |
110 } catch(IOException e) { | |
111 logger.info("",e); | |
112 } | |
113 } | |
114 | |
115 private static void copyAll(InputStream in,OutputStream out) | |
116 throws IOException | |
117 { | |
118 byte[] a = new byte[8192]; | |
119 int n; | |
120 while( (n=in.read(a)) != -1 ) { | |
121 out.write(a,0,n); | |
122 } | |
123 } | |
124 | |
125 } |