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;
59 public String getRealPath(String s) { return cx.getRealPath(s); }
60 public ServletScope(ServletRequest request, ServletResponse response, ServletContext cx) {
62 this.request = (HttpServletRequest)request;
63 this.response = (HttpServletResponse)response;
64 this.session = this.request.getSession();
68 // FIXME: setattributes, cookies
69 //#repeat params/requestHeader/attributes \
70 // getParameter/getHeader/getAttribute \
71 // getParameterNames/getHeaderNames/getAttributeNames \
72 // request/request/session/response \
73 // setAttribute/setAttribute/setAttribute
74 private JS params = new JS.Obj() {
75 public JS get(JS key) throws JSExn { return JSU.S(request.getParameter(JSU.toString(key)).toString()); }
76 public void put(JS key, JS val) throws JSExn { request.setAttribute(JSU.toString(key), JSU.toString(val)); }
77 public Enumeration keys() throws JSExn {
78 return new JS.Enumeration.JavaStringEnumeration(request.getParameterNames()); }
82 public JS _get(JS key) throws JSExn {
83 //#switch(JSU.toString(key))
85 case "arg": return null;
86 case "prevalent": return (JS)prevayler.prevalentSystem();
87 case "request": return SUBPROPERTY;
88 case "request.user": return JSU.S(request.getRemoteUser());
89 case "request.header": return requestHeader;
90 case "request.method": return JSU.S(request.getMethod());
91 case "request.remote": return SUBPROPERTY;
92 case "request.remote.ip": return JSU.S(request.getRemoteAddr());
93 case "request.remote.host": return JSU.S(request.getRemoteHost());
94 case "request.ssl": return JSU.B(request.isSecure());
95 case "request.path": return JSU.S(request.getPathInfo());
96 case "response": return SUBPROPERTY;
97 case "form": return SUBPROPERTY;
98 case "form.fields": return currentForm.fields();
99 case "session": return SUBPROPERTY;
100 case "session.created": return new JSDate(request.getSession(true).getCreationTime());
101 case "session.accessed": return new JSDate(request.getSession(true).getLastAccessedTime());
102 case "session.invalidate": return METHOD;
103 case "page": return SUBPROPERTY;
104 case "page.lastmodified": return new JSDate(new File(path).lastModified());
105 case "context": return SUBPROPERTY;
106 case "context.list": return METHOD;
107 case "params": return params;
109 // cookie, responseheader needed, session.attributes
113 Form currentForm = null;
115 public void put(JS key, JS val) throws JSExn {
117 //#switch(JSU.toString(key))
118 case "response.code": response.setStatus(JSU.toInt(val));
119 case "response.redirect": response.sendRedirect(JSU.toString(val));
120 case "response.contentType": response.setContentType(JSU.toString(val));
122 try { prevayler.execute(new Prevalence.JSTransaction((JS)val));
123 } catch (Exception e) { e.printStackTrace(); throw new RuntimeException(e); }
125 } catch (IOException e) { throw new JSExn(JSU.S(e.toString())); }
128 public JS call(JS method, JS[] args) throws JSExn {
129 //#switch(JSU.toString(method))
130 case "session.invalidate": request.getSession(true).invalidate(); return null;
132 String path = JSU.toString(args[0]);
133 if (path.indexOf("..") != -1) throw new JSExn("cannot use .. in paths");
134 File f = new File(cx.getRealPath("/") + File.separatorChar + path);
135 if (!f.isDirectory()) return null;
136 String[] contents = f.list();
137 JSArray ret = new JSArray(contents.length);
138 for(int i=0; i<contents.length; i++) ret.put(JSU.N(ret.size()), JSU.S(contents[i]));