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1
25 package org.snipsnap.net;
26
27 import org.snipsnap.app.Application;
28 import org.snipsnap.snip.Snip;
29 import org.snipsnap.snip.SnipSpace;
30 import org.snipsnap.snip.SnipSpaceFactory;
31 import org.snipsnap.user.User;
32 import org.snipsnap.user.UserManager;
33 import org.snipsnap.user.AuthenticationService;
34 import org.snipsnap.user.UserManagerFactory;
35 import org.snipsnap.util.Base64;
36 import org.snipsnap.container.Components;
37
38 import javax.servlet.ServletException  ;
39 import javax.servlet.http.HttpServlet ;
40 import javax.servlet.http.HttpServletRequest ;
41 import javax.servlet.http.HttpServletResponse ;
42 import javax.servlet.http.HttpSession ;
43 import java.io.BufferedReader ;
44 import java.io.IOException ;
45 import java.io.PrintWriter ;
46 import java.util.Iterator ;
47
48
53 public class iCalServlet extends HttpServlet {
54 private final static int WD_CREATED = 201;
55 private final static int WD_BAD_REQUEST = 400;
56 private final static int WD_UNAUTHORIZED = 401;
57
58 public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException , IOException {
59 HttpSession session = request.getSession();
60 UserManager um = UserManagerFactory.getInstance();
61
62 String method = request.getMethod();
63 String pathInfo = request.getPathInfo();
64
65 String auth = request.getHeader("Authorization");
67 String login = "", password = "";
68
69 if (auth != null) {
70 auth = new String (Base64.decode(auth.substring(auth.indexOf(' ') + 1)));
71 login = auth.substring(0, auth.indexOf(':'));
72 password = auth.substring(auth.indexOf(':') + 1);
73 }
74
75 User user = ((AuthenticationService) Components.getComponent(AuthenticationService.class)).authenticate(login, password);
76 if (user == null) {
77 response.setHeader("WWW-Authenticate", "Basic realm=\"SnipSnap\"");
78 response.setStatus(WD_UNAUTHORIZED);
79 return;
80 } else {
81 Application.get().setUser(user);
82 }
83
84
85 String name = user.getLogin();
86 String file = pathInfo.substring(1);
87 try {
88 int slashIdx = pathInfo.indexOf('/', 1);
89 if (slashIdx > -1) {
90 name = pathInfo.substring(1, slashIdx);
91 file = pathInfo.substring(slashIdx + 1);
92 }
93 } catch (Exception e) {
94 }
96
97 System.err.println("iCalServlet: " + method + "(" + user.getLogin() + "," + file + ")");
98
99 if (!user.getLogin().equals(name) || null == name || null == file) {
101 response.setStatus(WD_BAD_REQUEST);
102 return;
103 }
104
105 if ("DELETE".equals(method)) {
107 delete(name, file);
108 } else if ("PUT".equals(method)) {
109 put(name, file, request, response);
110 } else if ("GET".equals(method)) {
111 get(name, file, request, response);
112 }
113
114
115 response.setStatus(WD_CREATED);
116 }
117
118 protected void delete(String name, String file) {
119 SnipSpace space = SnipSpaceFactory.getInstance();
120 if (space.exists(name)) {
121 Snip userSnip = space.load(name);
122 Iterator it = userSnip.getChildren().iterator();
123 while (it.hasNext()) {
124 Snip snip = (Snip) it.next();
125 if (snip.getName().equals("calendar-" + name + "-" + file)) {
126 space.remove(snip);
127 }
128 }
129 }
130 }
131
132 StringBuffer content = new StringBuffer ();
133
134 protected void put(String name, String file,
135 HttpServletRequest request, HttpServletResponse response) throws IOException {
136 SnipSpace space = SnipSpaceFactory.getInstance();
137 if (space.exists(name)) {
138 Snip userSnip = space.load(name);
139
140 BufferedReader r = request.getReader();
141 content.setLength(0);
142 char buffer[] = new char[1024];
143 int l = 0;
144 while ((l = r.read(buffer)) != -1) {
145 content.append(buffer, 0, l);
146 }
147 Snip snip = space.create("calendar-" + name + "-" + file, content.toString());
148 userSnip.addSnip(snip);
149 }
150 }
151
152 protected void get(String name, String file,
153 HttpServletRequest request, HttpServletResponse response) throws IOException {
154 SnipSpace space = SnipSpaceFactory.getInstance();
155 if (space.exists(name)) {
156 PrintWriter w = response.getWriter();
157 Snip userSnip = space.load(name);
158 Iterator it = userSnip.getChildren().iterator();
159 while (it.hasNext()) {
160 Snip snip = (Snip) it.next();
161 if (snip.getName().equals("calendar-" + name + "-" + file)) {
162 String content = snip.getContent();
163 response.setContentLength(content.length());
164 response.setContentType("application/octet-stream");
165 w.print(content);
166 w.flush();
167 w.close();
168 return;
169 }
170 }
171 }
172 }
173
174
175 }
176 |
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