How to avoid request to Java Web Application servlet from outside some network?
I am trying to build a web application which is only meant to be accessed from inside a specific network, lets say a company's network. If anyone tries the URL for the application from outside the company's network then the access should be denied. I know I can use doFilter method for this task. But I am not really sure how to start checking the requests that are only coming from inside the company's network.
Can anyone point me to any useful resource or tell me how to achieve this in Java?
java servlets filter
asked Nov 14 '18 at 19:39
A BeginnerA Beginner
457
add a comment |
I am trying to build a web application which is only meant to be accessed from inside a specific network, lets say a company's network. If anyone tries the URL for the application from outside the company's network then the access should be denied. I know I can use doFilter method for this task. But I am not really sure how to start checking the requests that are only coming from inside the company's network.
Can anyone point me to any useful resource or tell me how to achieve this in Java?
java servlets filter
asked Nov 14 '18 at 19:39
A BeginnerA Beginner
457
add a comment |
I am trying to build a web application which is only meant to be accessed from inside a specific network, lets say a company's network. If anyone tries the URL for the application from outside the company's network then the access should be denied. I know I can use doFilter method for this task. But I am not really sure how to start checking the requests that are only coming from inside the company's network.
Can anyone point me to any useful resource or tell me how to achieve this in Java?
java servlets filter
asked Nov 14 '18 at 19:39
A BeginnerA Beginner
457
I am trying to build a web application which is only meant to be accessed from inside a specific network, lets say a company's network. If anyone tries the URL for the application from outside the company's network then the access should be denied. I know I can use doFilter method for this task. But I am not really sure how to start checking the requests that are only coming from inside the company's network.
Can anyone point me to any useful resource or tell me how to achieve this in Java?
java servlets filter
java servlets filter
asked Nov 14 '18 at 19:39
A BeginnerA Beginner
457
asked Nov 14 '18 at 19:39
A BeginnerA Beginner
457
asked Nov 14 '18 at 19:39
A BeginnerA Beginner
457
asked Nov 14 '18 at 19:39
A BeginnerA Beginner
457
asked Nov 14 '18 at 19:39
A BeginnerA Beginner
457
457
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
try to implement
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain filterChain) throws IOException, ServletException {
String validParams = request.getParameter("validParams");
if(!"blockTheRequest".equals(validParams)){
filterChain.doFilter(request, response);
return;
}
HttpResponse httpResponse = (HttpResponse) httpResponse;
httpResponse.getWriter().write("a different response... e.g in HTML");
}
and you need do configure it with in web.xml
<filter>
<filter-name>yourFilterURL</filter-name>
<filter-class>servlets.SimpleServletFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>yourFilterURL</filter-name>
<url-pattern>*.pattern</url-pattern>
</filter-mapping>
answered Nov 14 '18 at 20:00
Bhaskara AraniBhaskara Arani
5261833
Your answer will only avoid those requests in which the client doesn't providevalidparams. It won't avoid the requests from outside the company's network ifvalidparamsis valid
– A Beginner
Nov 14 '18 at 20:21
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
try to implement
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain filterChain) throws IOException, ServletException {
String validParams = request.getParameter("validParams");
if(!"blockTheRequest".equals(validParams)){
filterChain.doFilter(request, response);
return;
}
HttpResponse httpResponse = (HttpResponse) httpResponse;
httpResponse.getWriter().write("a different response... e.g in HTML");
}
and you need do configure it with in web.xml
<filter>
<filter-name>yourFilterURL</filter-name>
<filter-class>servlets.SimpleServletFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>yourFilterURL</filter-name>
<url-pattern>*.pattern</url-pattern>
</filter-mapping>
answered Nov 14 '18 at 20:00
Bhaskara AraniBhaskara Arani
5261833
Your answer will only avoid those requests in which the client doesn't providevalidparams. It won't avoid the requests from outside the company's network ifvalidparamsis valid
– A Beginner
Nov 14 '18 at 20:21
add a comment |
try to implement
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain filterChain) throws IOException, ServletException {
String validParams = request.getParameter("validParams");
if(!"blockTheRequest".equals(validParams)){
filterChain.doFilter(request, response);
return;
}
HttpResponse httpResponse = (HttpResponse) httpResponse;
httpResponse.getWriter().write("a different response... e.g in HTML");
}
and you need do configure it with in web.xml
<filter>
<filter-name>yourFilterURL</filter-name>
<filter-class>servlets.SimpleServletFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>yourFilterURL</filter-name>
<url-pattern>*.pattern</url-pattern>
</filter-mapping>
answered Nov 14 '18 at 20:00
Bhaskara AraniBhaskara Arani
5261833
Your answer will only avoid those requests in which the client doesn't providevalidparams. It won't avoid the requests from outside the company's network ifvalidparamsis valid
– A Beginner
Nov 14 '18 at 20:21
add a comment |
try to implement
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain filterChain) throws IOException, ServletException {
String validParams = request.getParameter("validParams");
if(!"blockTheRequest".equals(validParams)){
filterChain.doFilter(request, response);
return;
}
HttpResponse httpResponse = (HttpResponse) httpResponse;
httpResponse.getWriter().write("a different response... e.g in HTML");
}
and you need do configure it with in web.xml
<filter>
<filter-name>yourFilterURL</filter-name>
<filter-class>servlets.SimpleServletFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>yourFilterURL</filter-name>
<url-pattern>*.pattern</url-pattern>
</filter-mapping>
answered Nov 14 '18 at 20:00
Bhaskara AraniBhaskara Arani
5261833
try to implement
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain filterChain) throws IOException, ServletException {
String validParams = request.getParameter("validParams");
if(!"blockTheRequest".equals(validParams)){
filterChain.doFilter(request, response);
return;
}
HttpResponse httpResponse = (HttpResponse) httpResponse;
httpResponse.getWriter().write("a different response... e.g in HTML");
}
and you need do configure it with in web.xml
<filter>
<filter-name>yourFilterURL</filter-name>
<filter-class>servlets.SimpleServletFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>yourFilterURL</filter-name>
<url-pattern>*.pattern</url-pattern>
</filter-mapping>
answered Nov 14 '18 at 20:00
Bhaskara AraniBhaskara Arani
5261833
answered Nov 14 '18 at 20:00
Bhaskara AraniBhaskara Arani
5261833
answered Nov 14 '18 at 20:00
Bhaskara AraniBhaskara Arani
5261833
answered Nov 14 '18 at 20:00
Bhaskara AraniBhaskara Arani
5261833
5261833
Your answer will only avoid those requests in which the client doesn't providevalidparams. It won't avoid the requests from outside the company's network ifvalidparamsis valid
– A Beginner
Nov 14 '18 at 20:21
add a comment |
Your answer will only avoid those requests in which the client doesn't providevalidparams. It won't avoid the requests from outside the company's network ifvalidparamsis valid
– A Beginner
Nov 14 '18 at 20:21
Your answer will only avoid those requests in which the client doesn't provide
validparams. It won't avoid the requests from outside the company's network if validparams is valid– A Beginner
Nov 14 '18 at 20:21
Your answer will only avoid those requests in which the client doesn't provide
validparams. It won't avoid the requests from outside the company's network if validparams is valid– A Beginner
Nov 14 '18 at 20:21
add a comment |
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