+++ /dev/null
-package ibex.xt;
-
-import ibex.util.XML;
-import org.ibex.js.JS;
-import org.ibex.js.JSArray;
-import org.ibex.js.JSDate;
-import org.ibex.js.JSExn;
-
-import java.io.*;
-import java.net.*;
-import java.util.*;
-import javax.servlet.*;
-import javax.servlet.http.*;
-
-import org.prevayler.*;
-import org.prevayler.implementation.snapshot.*;
-
-public class Servlet extends HttpServlet {
-
- private String path;
- private Prevayler prevayler;
- private JS prevalent;
- private ServletContext cx = null;
-
- public void destroy() { try {
- synchronized(this.getClass()) {
- Prevayler privatePrevayler = prevayler;
- if (prevayler == null) return;
- prevayler = null;
- Prevalence.destroy(cx, prevayler);
- }
- } catch (Exception e) { e.printStackTrace(); } }
-
- public void init(ServletConfig sc) throws ServletException {
- cx = sc.getServletContext();
- prevayler = Prevalence.getPrevayler(cx);
- prevalent = (JS)prevayler.prevalentSystem();
- }
-
- public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException { doGet(request, response); }
- public void doGet(HttpServletRequest rq, HttpServletResponse rs) throws IOException {
- String path = cx.getRealPath(rq.getServletPath());
- Servlet.Scope scope = new Servlet.Scope(cx, rq, rs, prevayler);
- try { Template.wrap(Template.parse(path, scope), scope).toXML(rs.getWriter()); }
- catch (Exception e) { e.printStackTrace(); System.out.println("e = "+e); }
- }
-
- public static class Scope extends Template.Scope {
- private final ServletContext cx;
- private final HttpServletRequest request;
- private final HttpServletResponse response;
- private final Prevayler prevayler;
-
- public Scope(ServletContext cx, HttpServletRequest rq, HttpServletResponse rs, Prevayler p) {
- super(null); this.cx = cx; request = rq; response = rs; prevayler = p;
- }
-
- public String getLocalPath() { return cx.getRealPath("/") + "/WEB-INF/"; }
- public void transaction(JS t) {
- try { prevayler.execute(new Prevalence.JSTransaction(t)); }
- catch (Exception e) { e.printStackTrace(); throw new RuntimeException(e); }
- }
-
- private JS params = new JS() {
- public Object get(Object key) { return request.getParameter(JS.toString(key)); }
- public Enumeration keys() { return request.getParameterNames(); }
- };
- private JS cookies = new JS() {
- /*
- public Object get(Object key) { return request.getCookie(JS.toString(key)); }
- public Enumeration keys() { return request.getCookieNames(); }
- */
- };
- private JS sessionAttributes = new JS() {
- public Object get(Object key) {
- return request.getSession(true).getAttribute(JS.toString(key)); }
- public void put(Object key, Object val) {
- if (val == null) request.getSession(true).removeAttribute(JS.toString(key));
- else request.setAttribute(JS.toString(key), val); }
- public Enumeration keys() { return request.getSession(true).getAttributeNames(); }
- };
- private JS requestHeader = new JS() {
- public Object get(Object key) { return request.getHeader(JS.toString(key)); }
- public Enumeration keys() { return request.getHeaderNames(); }
- };
- private JS responseHeader = new JS() {
- public void put(Object key, Object val) {
- response.setHeader(JS.toString(key), JS.toString(val)); }
- };
-
-
- /** lets us put multi-level get/put/call keys all in the same method */
- private class Sub extends JS {
- Object key;
- Sub(Object key) { this.key = key; }
- public void put(Object key, Object val) throws JSExn {
- Scope.this.put(JS.toString(this.key) + "." + JS.toString(key), val); }
- public Object get(Object key) throws JSExn {
- return Scope.this.get(JS.toString(this.key) + "." + JS.toString(key)); }
- public Object call(Object a0, Object a1, Object a2, Object[] rest, int nargs) throws JSExn {
- return Scope.this.callMethod(this.key, a0, a1, a2, rest, nargs);
- }
- public Object callMethod(Object method, Object a0, Object a1, Object a2, Object[] rest, int nargs) throws JSExn {
- return Scope.this.callMethod(JS.toString(this.key) + "."
- + JS.toString(method), a0, a1, a2, rest, nargs);
- }
- }
- private Sub getSub(String key) { return new Sub(key); }
-
- public Object callMethod(Object method, final Object a, final Object b, Object c, Object[] rest, int nargs) throws JSExn {
- //#switch(method)
- case "session.invalidate": request.getSession(true).invalidate(); return null;
- case "context.list":
- String path = JS.toString(a);
- if (path.indexOf("..") != -1) throw new JSExn("cannot use .. in paths");
- File f = new File(cx.getRealPath("/") + File.separatorChar + path);
- if (!f.isDirectory()) return null;
- String[] contents = f.list();
- JSArray ret = new JSArray(contents.length);
- for(int i=0; i<contents.length; i++) ret.addElement(contents[i]);
- return ret;
- //#end
- return null;
- }
- public Object get(Object key) throws JSExn {
- //#switch(key)
- case "body":
- case "arg": return null;
- case "prevalent": return prevayler.prevalentSystem();
- case "request": return getSub("request");
- case "request.user": return request.getRemoteUser();
- case "request.header": return requestHeader;
- case "request.method": return request.getMethod();
- case "request.remote": return getSub("request.remote");
- case "request.remote.ip": return request.getRemoteAddr();
- case "request.remote.host": return request.getRemoteHost();
- case "request.ssl": return new Boolean(request.isSecure());
- case "request.path": return request.getPathInfo();
- case "response": return getSub("response");
- case "response.header": return responseHeader;
- case "session": return getSub("session");
- case "session.attr": return sessionAttributes;
- case "session.created": return new JSDate(request.getSession(true).getCreationTime());
- case "session.accessed": return new JSDate(request.getSession(true).getLastAccessedTime());
- case "session.invalidate": return METHOD;
- case "page": return getSub("page");
- //case "page.lastmodified": return new JSDate(new File(path).lastModified()); FIXME
- case "context": return getSub("context");
- case "context.list": return METHOD;
- case "params": return params;
- case "cookie": return cookies;
- case "xt.date": return new JSDate(); // TODO: discuss
- //#end
- return null;
- }
- public void put(Object key, Object val) throws JSExn {
- try {
- //#switch(JS.toString(key))
- case "transaction": transaction((JS)val);
- case "response.code": response.setStatus(JS.toInt(val));
- case "response.redirect": response.sendRedirect(JS.toString(val));
- case "response.contentType": response.setContentType(JS.toString(val));
- //#end
- } catch (IOException e) {
- throw new JSExn(e);
- }
- }
- }
-
-}
projects / org.ibex.xt-crawshaw.git / blobdiff