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annotate src/luan/webserver/Util.java @ 1147:30d87b7d1d62

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webserver - support multipart/form-data
author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 01 Feb 2018 22:06:37 -0700
parents 2dda3c92a473
children 220228bf1af9
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1 package luan.webserver;
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2
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3 import java.io.UnsupportedEncodingException;
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4 import java.net.URLDecoder;
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5 import java.net.URLEncoder;
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6 import java.util.Map;
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7 import java.util.List;
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8 import java.util.ArrayList;
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9
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10
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11 final class Util {
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12
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13 static String urlDecode(String s) {
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14 try {
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15 return URLDecoder.decode(s,"UTF-8");
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16 } catch(UnsupportedEncodingException e) {
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17 throw new RuntimeException(e);
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18 }
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19 }
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20
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21 static String urlEncode(String s) {
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22 try {
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23 return URLEncoder.encode(s,"UTF-8");
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24 } catch(UnsupportedEncodingException e) {
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25 throw new RuntimeException(e);
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26 }
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27 }
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28
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29 static void add(Map<String,Object> map,String name,Object value) {
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30 Object current = map.get(name);
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31 if( current == null ) {
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32 map.put(name,value);
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33 } else if( current instanceof List ) {
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34 List list = (List)current;
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35 list.add(value);
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36 } else {
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37 List list = new ArrayList();
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38 list.add(current);
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39 list.add(value);
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40 map.put(name,list);
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41 }
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42 }
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43
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44 static String toString(byte[] a) {
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45 char[] ac = new char[a.length];
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46 for( int i=0; i<a.length; i++ ) {
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47 ac[i] = (char)a[i];
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48 }
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49 return new String(ac);
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50 }
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51
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52 static byte[] toBytes(String s) {
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53 char[] ac = s.toCharArray();
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54 byte[] a = new byte[ac.length];
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55 for( int i=0; i<ac.length; i++ ) {
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56 a[i] = (byte)ac[i];
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57 }
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58 return a;
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59 }
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61 private Util() {} // never
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62 }