A
anikkar
Hi,
I am in the learning stages of using JSPs, and i am tryin to write a
utility which will unzip a file on a server (this is because i have had
to much trouble uploading a folder with the unzip'd contents...i.e.
100s of files).
I quickly found that i don't have read permissions:
exception
org.apache.jasper.JasperException: access denied
(java.io.FilePermission / read)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:372)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
sun.reflect.GeneratedMethodAccessor152.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:585)
org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:239)
java.security.AccessController.doPrivileged(Native Method)
javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:266)
org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:157)
root cause
java.security.AccessControlException: access denied
(java.io.FilePermission / read)
java.security.AccessControlContext.checkPermission(AccessControlContext.java:264)
java.security.AccessController.checkPermission(AccessController.java:427)
java.lang.SecurityManager.checkPermission(SecurityManager.java:532)
But this doesn't seem to make sense to me, as you would imagine that I
would have read permissions on the server.
Here is the code:
<%@ page import="java.util.Enumeration"%>
<%@ page import="java.io.File"%>
<html>
<body>
<form action="unzip.jsp" method=post>
<SELECT NAME="File" SIZE=4>
<% File dir = new File("/");
for(File tempFile : dir.listFiles()) { %>
<OPTION><%=tempFile%></OPTION>
<% } %>
</SELECT>
<INPUT TYPE=SUBMIT VALUE=Press>
</form>
<B>Form Content</B><BR>
<TABLE>
<% Enumeration parameters = request.getParameterNames();
while(parameters.hasMoreElements()){
String parameterName = (String)parameters.nextElement();
String parameterValue = request.getParameter(parameterName);
%>
<TR>
<TD><%=parameterName%></TD>
<TD><%=parameterValue%></TD>
</TR>
<% } %>
</body>
</html>
I am in the learning stages of using JSPs, and i am tryin to write a
utility which will unzip a file on a server (this is because i have had
to much trouble uploading a folder with the unzip'd contents...i.e.
100s of files).
I quickly found that i don't have read permissions:
exception
org.apache.jasper.JasperException: access denied
(java.io.FilePermission / read)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:372)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
sun.reflect.GeneratedMethodAccessor152.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:585)
org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:239)
java.security.AccessController.doPrivileged(Native Method)
javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:266)
org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:157)
root cause
java.security.AccessControlException: access denied
(java.io.FilePermission / read)
java.security.AccessControlContext.checkPermission(AccessControlContext.java:264)
java.security.AccessController.checkPermission(AccessController.java:427)
java.lang.SecurityManager.checkPermission(SecurityManager.java:532)
But this doesn't seem to make sense to me, as you would imagine that I
would have read permissions on the server.
Here is the code:
<%@ page import="java.util.Enumeration"%>
<%@ page import="java.io.File"%>
<html>
<body>
<form action="unzip.jsp" method=post>
<SELECT NAME="File" SIZE=4>
<% File dir = new File("/");
for(File tempFile : dir.listFiles()) { %>
<OPTION><%=tempFile%></OPTION>
<% } %>
</SELECT>
<INPUT TYPE=SUBMIT VALUE=Press>
</form>
<B>Form Content</B><BR>
<TABLE>
<% Enumeration parameters = request.getParameterNames();
while(parameters.hasMoreElements()){
String parameterName = (String)parameters.nextElement();
String parameterValue = request.getParameter(parameterName);
%>
<TR>
<TD><%=parameterName%></TD>
<TD><%=parameterValue%></TD>
</TR>
<% } %>
</body>
</html>
