1 | package org.json; |
---|
2 | |
---|
3 | /* |
---|
4 | Copyright (c) 2002 JSON.org |
---|
5 | |
---|
6 | Permission is hereby granted, free of charge, to any person obtaining a copy |
---|
7 | of this software and associated documentation files (the "Software"), to deal |
---|
8 | in the Software without restriction, including without limitation the rights |
---|
9 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
---|
10 | copies of the Software, and to permit persons to whom the Software is |
---|
11 | furnished to do so, subject to the following conditions: |
---|
12 | |
---|
13 | The above copyright notice and this permission notice shall be included in all |
---|
14 | copies or substantial portions of the Software. |
---|
15 | |
---|
16 | The Software shall be used for Good, not Evil. |
---|
17 | |
---|
18 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
---|
19 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
---|
20 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
---|
21 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
---|
22 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
---|
23 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
---|
24 | SOFTWARE. |
---|
25 | */ |
---|
26 | |
---|
27 | import java.util.Iterator; |
---|
28 | |
---|
29 | /** |
---|
30 | * Convert an HTTP header to a JSONObject and back. |
---|
31 | * @author JSON.org |
---|
32 | * @version 2008-09-18 |
---|
33 | */ |
---|
34 | public class HTTP { |
---|
35 | |
---|
36 | /** Carriage return/line feed. */ |
---|
37 | public static final String CRLF = "\r\n"; |
---|
38 | |
---|
39 | /** |
---|
40 | * Convert an HTTP header string into a JSONObject. It can be a request |
---|
41 | * header or a response header. A request header will contain |
---|
42 | * <pre>{ |
---|
43 | * Method: "POST" (for example), |
---|
44 | * "Request-URI": "/" (for example), |
---|
45 | * "HTTP-Version": "HTTP/1.1" (for example) |
---|
46 | * }</pre> |
---|
47 | * A response header will contain |
---|
48 | * <pre>{ |
---|
49 | * "HTTP-Version": "HTTP/1.1" (for example), |
---|
50 | * "Status-Code": "200" (for example), |
---|
51 | * "Reason-Phrase": "OK" (for example) |
---|
52 | * }</pre> |
---|
53 | * In addition, the other parameters in the header will be captured, using |
---|
54 | * the HTTP field names as JSON names, so that <pre> |
---|
55 | * Date: Sun, 26 May 2002 18:06:04 GMT |
---|
56 | * Cookie: Q=q2=PPEAsg--; B=677gi6ouf29bn&b=2&f=s |
---|
57 | * Cache-Control: no-cache</pre> |
---|
58 | * become |
---|
59 | * <pre>{... |
---|
60 | * Date: "Sun, 26 May 2002 18:06:04 GMT", |
---|
61 | * Cookie: "Q=q2=PPEAsg--; B=677gi6ouf29bn&b=2&f=s", |
---|
62 | * "Cache-Control": "no-cache", |
---|
63 | * ...}</pre> |
---|
64 | * It does no further checking or conversion. It does not parse dates. |
---|
65 | * It does not do '%' transforms on URLs. |
---|
66 | * @param string An HTTP header string. |
---|
67 | * @return A JSONObject containing the elements and attributes |
---|
68 | * of the XML string. |
---|
69 | * @throws JSONException |
---|
70 | */ |
---|
71 | public static JSONObject toJSONObject(String string) throws JSONException { |
---|
72 | JSONObject o = new JSONObject(); |
---|
73 | HTTPTokener x = new HTTPTokener(string); |
---|
74 | String t; |
---|
75 | |
---|
76 | t = x.nextToken(); |
---|
77 | if (t.toUpperCase().startsWith("HTTP")) { |
---|
78 | |
---|
79 | // Response |
---|
80 | |
---|
81 | o.put("HTTP-Version", t); |
---|
82 | o.put("Status-Code", x.nextToken()); |
---|
83 | o.put("Reason-Phrase", x.nextTo('\0')); |
---|
84 | x.next(); |
---|
85 | |
---|
86 | } else { |
---|
87 | |
---|
88 | // Request |
---|
89 | |
---|
90 | o.put("Method", t); |
---|
91 | o.put("Request-URI", x.nextToken()); |
---|
92 | o.put("HTTP-Version", x.nextToken()); |
---|
93 | } |
---|
94 | |
---|
95 | // Fields |
---|
96 | |
---|
97 | while (x.more()) { |
---|
98 | String name = x.nextTo(':'); |
---|
99 | x.next(':'); |
---|
100 | o.put(name, x.nextTo('\0')); |
---|
101 | x.next(); |
---|
102 | } |
---|
103 | return o; |
---|
104 | } |
---|
105 | |
---|
106 | |
---|
107 | /** |
---|
108 | * Convert a JSONObject into an HTTP header. A request header must contain |
---|
109 | * <pre>{ |
---|
110 | * Method: "POST" (for example), |
---|
111 | * "Request-URI": "/" (for example), |
---|
112 | * "HTTP-Version": "HTTP/1.1" (for example) |
---|
113 | * }</pre> |
---|
114 | * A response header must contain |
---|
115 | * <pre>{ |
---|
116 | * "HTTP-Version": "HTTP/1.1" (for example), |
---|
117 | * "Status-Code": "200" (for example), |
---|
118 | * "Reason-Phrase": "OK" (for example) |
---|
119 | * }</pre> |
---|
120 | * Any other members of the JSONObject will be output as HTTP fields. |
---|
121 | * The result will end with two CRLF pairs. |
---|
122 | * @param o A JSONObject |
---|
123 | * @return An HTTP header string. |
---|
124 | * @throws JSONException if the object does not contain enough |
---|
125 | * information. |
---|
126 | */ |
---|
127 | public static String toString(JSONObject o) throws JSONException { |
---|
128 | Iterator keys = o.keys(); |
---|
129 | String s; |
---|
130 | StringBuffer sb = new StringBuffer(); |
---|
131 | if (o.has("Status-Code") && o.has("Reason-Phrase")) { |
---|
132 | sb.append(o.getString("HTTP-Version")); |
---|
133 | sb.append(' '); |
---|
134 | sb.append(o.getString("Status-Code")); |
---|
135 | sb.append(' '); |
---|
136 | sb.append(o.getString("Reason-Phrase")); |
---|
137 | } else if (o.has("Method") && o.has("Request-URI")) { |
---|
138 | sb.append(o.getString("Method")); |
---|
139 | sb.append(' '); |
---|
140 | sb.append('"'); |
---|
141 | sb.append(o.getString("Request-URI")); |
---|
142 | sb.append('"'); |
---|
143 | sb.append(' '); |
---|
144 | sb.append(o.getString("HTTP-Version")); |
---|
145 | } else { |
---|
146 | throw new JSONException("Not enough material for an HTTP header."); |
---|
147 | } |
---|
148 | sb.append(CRLF); |
---|
149 | while (keys.hasNext()) { |
---|
150 | s = keys.next().toString(); |
---|
151 | if (!s.equals("HTTP-Version") && !s.equals("Status-Code") && |
---|
152 | !s.equals("Reason-Phrase") && !s.equals("Method") && |
---|
153 | !s.equals("Request-URI") && !o.isNull(s)) { |
---|
154 | sb.append(s); |
---|
155 | sb.append(": "); |
---|
156 | sb.append(o.getString(s)); |
---|
157 | sb.append(CRLF); |
---|
158 | } |
---|
159 | } |
---|
160 | sb.append(CRLF); |
---|
161 | return sb.toString(); |
---|
162 | } |
---|
163 | } |
---|