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1
29
30 package com.caucho.servlets;
31
32 import com.caucho.i18n.CharacterEncoding;
33 import com.caucho.server.connection.CauchoRequest;
34 import com.caucho.server.webapp.Application;
35 import com.caucho.util.CharBuffer;
36 import com.caucho.util.URLUtil;
37 import com.caucho.vfs.Path;
38 import com.caucho.vfs.Vfs;
39
40 import javax.servlet.http.HttpServlet  ;
41 import javax.servlet.http.HttpServletRequest ;
42 import javax.servlet.http.HttpServletResponse ;
43 import java.io.IOException ;
44 import java.io.PrintWriter ;
45 import java.util.Iterator ;
46
47 public class DirectoryServlet extends HttpServlet {
48 Application _app;
49 Path _context;
50 private boolean _enable = true;
51
52 public DirectoryServlet(Path context)
53 {
54 _context = context;
55 }
56
57 public DirectoryServlet()
58 {
59 this(Vfs.lookup());
60 }
61
62 public void setEnable(boolean enable)
63 {
64 _enable = enable;
65 }
66
67 public void init()
68 {
69 _app = (Application) getServletContext();
70 _context = _app.getAppDir();
71 }
72
73 public void doGet(HttpServletRequest req, HttpServletResponse res)
74
75 throws IOException
76 {
77 if (! _enable) {
78 res.sendError(404);
79 return;
80 }
81
82 CauchoRequest cauchoReq = null;
83
84 if (req instanceof CauchoRequest)
85 cauchoReq = (CauchoRequest) req;
86
87 String uri = req.getRequestURI();
88 boolean redirect = false;
89
90 if (uri.length() > 0 && uri.charAt(uri.length() - 1) != '/') {
91 res.sendRedirect(uri + "/");
92 return;
93 }
94
95 String encoding = CharacterEncoding.getLocalEncoding();
96 if (encoding == null)
97 res.setContentType("text/html");
98 else
99 res.setContentType("text/html; charset=" + encoding);
100
101 boolean isInclude = false;
102
103 if (cauchoReq != null) {
104 uri = cauchoReq.getPageURI();
105 isInclude = ! uri.equals(cauchoReq.getRequestURI());
106 }
107 else {
108 uri = (String ) req.getAttribute("javax.servlet.include.request_uri");
109 if (uri != null)
110 isInclude = true;
111 else
112 uri = req.getRequestURI();
113 }
114
115 CharBuffer cb = CharBuffer.allocate();
116 String servletPath;
117
118 if (cauchoReq != null)
119 servletPath = cauchoReq.getPageServletPath();
120 else if (isInclude)
121 servletPath = (String ) req.getAttribute("javax.servlet.include.servlet_path");
122 else
123 servletPath = req.getServletPath();
124
125 if (servletPath != null)
126 cb.append(servletPath);
127
128 String pathInfo;
129 if (cauchoReq != null)
130 pathInfo = cauchoReq.getPagePathInfo();
131 else if (isInclude)
132 pathInfo = (String ) req.getAttribute("javax.servlet.include.path_info");
133 else
134 pathInfo = req.getPathInfo();
135
136 if (pathInfo != null)
137 cb.append(pathInfo);
138
139 String relPath = cb.close();
140
141 String filename = getServletContext().getRealPath(relPath);
142 Path path = _context.lookupNative(filename);
143
144 String rawpath = java.net.URLDecoder.decode(uri);
145
146 PrintWriter pw = res.getWriter();
147
148 if (rawpath.length() == 0 || rawpath.charAt(0) != '/')
149 rawpath = "/" + rawpath;
150
151 boolean endsSlash = rawpath.charAt(rawpath.length() - 1) == '/';
152 String tail = "";
153 if (! endsSlash) {
154 int p = rawpath.lastIndexOf('/');
155 tail = rawpath.substring(p + 1) + "/";
156 rawpath = rawpath + "/";
157 }
158
159 pw.println("<html>");
160 pw.println("<head>");
161 pw.println("<title>Directory of " + rawpath + "</title>");
162 pw.println("</head>");
163 pw.println("<body>");
164
165 pw.println("<h1>Directory of " + rawpath + "</h1>");
166
167 pw.println("<ul>");
168
169 Iterator i = path.iterator();
170 while (i.hasNext()) {
171 String name = (String ) i.next();
172
173 if (name.equalsIgnoreCase("web-inf") ||
174 name.equalsIgnoreCase("meta-inf"))
175 continue;
176
177 String enc = URLUtil.encodeURL(tail + name);
178
179 pw.println("<li><a HREF='" + enc + "'>" + name + "</a>");
180 }
181 pw.println("</ul>");
182 pw.println("</body>");
183 pw.println("</html>");
184 pw.close();
185 }
186 }
187 |
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