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redirectHttp10Compatible flag

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This commit is contained in:
Keith Donald
2008-05-13 14:57:37 +00:00
parent cef529ec81
commit c175780324
2 changed files with 40 additions and 1 deletions
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15
spring-webflow/src/main/java/org/springframework/webflow/mvc/servlet/FlowController.java
View File

@@ -104,6 +104,21 @@ public class FlowController implements Controller, ApplicationContextAware, Init
flowHandlerAdapter.setAjaxHandler(ajaxHandler);
}
/**
* Set whether redirects sent by this controller should be compatible with HTTP 1.0 clients.
* <p>
* By default, this will enforce a redirect HTTP status code of 302 by delegating to
* <code>HttpServletResponse.sendRedirect</code>. Setting this to false will send HTTP status code 303, which is
* the correct code for HTTP 1.1 clients, but not understood by HTTP 1.0 clients.
* <p>
* Many HTTP 1.1 clients treat 302 just like 303, not making any difference. However, some clients depend on 303
* when redirecting after a POST request; turn this flag off in such a scenario.
* @see javax.servlet.http.HttpServletResponse#sendRedirect
*/
public void setRedirectHttp10Compatible(boolean redirectHttp10Compatible) {
flowHandlerAdapter.setRedirectHttp10Compatible(redirectHttp10Compatible);
}
/**
* Sets the custom flow handles for managing the access to flows in a custom manner.
* @param flowHandlers the flow handler map

26
spring-webflow/src/main/java/org/springframework/webflow/mvc/servlet/FlowHandlerAdapter.java
View File

@@ -74,6 +74,8 @@ public class FlowHandlerAdapter extends WebContentGenerator implements HandlerAd
*/
private AjaxHandler ajaxHandler;
private boolean redirectHttp10Compatible = true;
/**
* Creates a new flow handler adapter.
* @see #setFlowExecutor(FlowExecutor)
@@ -131,6 +133,21 @@ public class FlowHandlerAdapter extends WebContentGenerator implements HandlerAd
this.ajaxHandler = ajaxHandler;
}
/**
* Set whether redirects sent by this handler adapter should be compatible with HTTP 1.0 clients.
* <p>
* By default, this will enforce a redirect HTTP status code of 302 by delegating to
* <code>HttpServletResponse.sendRedirect</code>. Setting this to false will send HTTP status code 303, which is
* the correct code for HTTP 1.1 clients, but not understood by HTTP 1.0 clients.
* <p>
* Many HTTP 1.1 clients treat 302 just like 303, not making any difference. However, some clients depend on 303
* when redirecting after a POST request; turn this flag off in such a scenario.
* @see javax.servlet.http.HttpServletResponse#sendRedirect
*/
public void setRedirectHttp10Compatible(boolean redirectHttp10Compatible) {
this.redirectHttp10Compatible = redirectHttp10Compatible;
}
public void afterPropertiesSet() throws Exception {
Assert.notNull(flowExecutor, "The FlowExecutor to execute flows is required");
if (flowUrlHandler == null) {
@@ -369,7 +386,14 @@ public class FlowHandlerAdapter extends WebContentGenerator implements HandlerAd
if (ajaxHandler.isAjaxRequest(request, response)) {
ajaxHandler.sendAjaxRedirect(url, request, response, false);
} else {
response.sendRedirect(response.encodeRedirectURL(url));
if (redirectHttp10Compatible) {
// Always send status code 302.
response.sendRedirect(response.encodeRedirectURL(url));
} else {
// Correct HTTP status code is 303, in particular for POST requests.
response.setStatus(303);
response.setHeader("Location", response.encodeRedirectURL(url));
}
}
}