1 // Copyright 2000-2005 the Contributors, as shown in the revision logs.
2 // Licensed under the Apache Public Source License 2.0 ("the License").
3 // You may not use this file except in compliance with the License.
7 import org.ibex.util.*;
12 import javax.servlet.*;
13 import javax.servlet.http.*;
14 import com.thoughtworks.xstream.*;
15 import org.prevayler.*;
16 import org.prevayler.implementation.snapshot.*;
18 public class Servlet extends HttpServlet {
20 public static final JS METHOD = new JS.Method();
21 private ServletScope servletscope = null;
23 private Prevayler prevayler;
25 private ServletContext cx = null;
27 public void destroy() { try {
28 synchronized(this.getClass()) {
29 Prevayler privatePrevayler = prevayler;
30 if (prevayler == null) return;
32 Prevalence.destroy(cx, prevayler);
34 } catch (Exception e) { e.printStackTrace(); } }
36 public void init(ServletConfig sc) throws ServletException {
37 cx = sc.getServletContext();
38 prevayler = Prevalence.getPrevayler(cx);
39 prevalent = (JS)prevayler.prevalentSystem();
42 public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException { doGet(request, response); }
43 public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
44 servletscope = new ServletScope(request, response, cx);
45 path = cx.getRealPath(((HttpServletRequest)request).getServletPath());
46 Reader xmlreader = new InputStreamReader(new FileInputStream(path));
47 Writer w = response.getWriter();
48 new Template(servletscope, servletscope, xmlreader).wrap(null).toXML(w);
52 // ServletScope //////////////////////////////////////////////////////////////////////////////
54 public class ServletScope extends JSSubProperties {
55 HttpServletRequest request;
56 HttpServletResponse response;
58 public String getRealPath(String s) { return cx.getRealPath(s); }
59 public ServletScope(ServletRequest request, ServletResponse response, ServletContext cx) {
61 this.request = (HttpServletRequest)request;
62 this.response = (HttpServletResponse)response;
66 // FIXME: setattributes
67 //#repeat params/cookies/requestHeader/attributes \
68 // getParameter/getCookie/getHeader/getAttribute \
69 // getParameterNames/getCookieNames/getHeaderNames/getAttributeNames \
70 // request/request/request/session/response \
71 // setParameter/setCookie/setHeader/setAttribute
72 private JS params = new JS.Obj() {
73 public JS get(JS key) throws JSExn { return JSU.S(request.getParameter(JSU.toString(key)).toString()); }
74 public void put(JS key, JS val) throws JSExn { request.setParameter(JSU.toString(key), JSU.toString(val)); }
75 public Enumeration keys() throws JSExn {
76 return new JS.Enumeration.JavaStringEnumeration(request.getParameterNames()); }
80 public JS _get(JS key) throws JSExn {
81 //#switch(JSU.toString(key))
83 case "arg": return null;
84 case "prevalent": return (JS)prevayler.prevalentSystem();
85 case "request": return SUBPROPERTY;
86 case "request.user": return JSU.S(request.getRemoteUser());
87 case "request.header": return requestHeader;
88 case "request.method": return JSU.S(request.getMethod());
89 case "request.remote": return SUBPROPERTY;
90 case "request.remote.ip": return JSU.S(request.getRemoteAddr());
91 case "request.remote.host": return JSU.S(request.getRemoteHost());
92 case "request.ssl": return JSU.B(request.isSecure());
93 case "request.path": return JSU.S(request.getPathInfo());
94 case "response": return SUBPROPERTY;
95 case "response.header": return responseHeader;
96 case "session": return SUBPROPERTY;
97 case "session.attr": return sessionAttributes;
98 case "session.created": return new JSDate(request.getSession(true).getCreationTime());
99 case "session.accessed": return new JSDate(request.getSession(true).getLastAccessedTime());
100 case "session.invalidate": return METHOD;
101 case "page": return SUBPROPERTY;
102 case "page.lastmodified": return new JSDate(new File(path).lastModified());
103 case "context": return SUBPROPERTY;
104 case "context.list": return METHOD;
105 case "params": return params;
106 case "cookie": return cookies;
111 public void put(JS key, JS val) throws JSExn {
113 //#switch(JSU.toString(key))
114 case "response.code": response.setStatus(JSU.toInt(val));
115 case "response.redirect": response.sendRedirect(JSU.toString(val));
116 case "response.contentType": response.setContentType(JSU.toString(val));
118 try { prevayler.execute(new Prevalence.JSTransaction((JS)val));
119 } catch (Exception e) { e.printStackTrace(); throw new RuntimeException(e); }
121 } catch (IOException e) { throw new JSExn(JSU.S(e.toString())); }
124 public JS call(JS method, JS[] args) throws JSExn {
125 //#switch(JSU.toString(method))
126 case "session.invalidate": request.getSession(true).invalidate(); return null;
128 String path = JSU.toString(args[0]);
129 if (path.indexOf("..") != -1) throw new JSExn("cannot use .. in paths");
130 File f = new File(cx.getRealPath("/") + File.separatorChar + path);
131 if (!f.isDirectory()) return null;
132 String[] contents = f.list();
133 JSArray ret = new JSArray(contents.length);
134 for(int i=0; i<contents.length; i++) ret.put(JSU.N(ret.size()), JSU.S(contents[i]));