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GUAC-547: Send status code as header. Use status code wherever GuacamoleExceptions are handled.

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This commit is contained in:
Michael Jumper
2014-03-18 17:23:16 -07:00
parent 377d8b62d0
commit 1a4ddb5660
2 changed files with 32 additions and 41 deletions
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38
guacamole-common/src/main/java/org/glyptodon/guacamole/servlet/GuacamoleHTTPTunnelServlet.java
View File

@@ -42,6 +42,7 @@ import org.glyptodon.guacamole.GuacamoleServerException;
import org.glyptodon.guacamole.io.GuacamoleReader;
import org.glyptodon.guacamole.io.GuacamoleWriter;
import org.glyptodon.guacamole.net.GuacamoleTunnel;
import org.glyptodon.guacamole.protocol.GuacamoleStatus;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -94,21 +95,28 @@ public abstract class GuacamoleHTTPTunnelServlet extends HttpServlet {
}
/**
* Sends an error on the given HTTP response with the given integer error
* code.
* Sends an error on the given HTTP response using the information within
* the given GuacamoleStatus.
*
* @param response The HTTP response to use to send the error.
* @param code The HTTP status code of the error.
* @param guac_status The status to send
* @param message A human-readable message that can be presented to the
* user.
* @throws ServletException If an error prevents sending of the error
* code.
*/
private void sendError(HttpServletResponse response, int code) throws ServletException {
public static void sendError(HttpServletResponse response,
GuacamoleStatus guac_status, String message)
throws ServletException {
try {
// If response not committed, send error code
if (!response.isCommitted())
response.sendError(code);
// If response not committed, send error code and message
if (!response.isCommitted()) {
response.addHeader("Guacamole-Status-Code", Integer.toString(guac_status.getGuacamoleStatusCode()));
response.addHeader("Guacamole-Error-Message", message);
response.sendError(guac_status.getHttpStatusCode());
}
}
catch (IOException ioe) {
@@ -197,21 +205,13 @@ public abstract class GuacamoleHTTPTunnelServlet extends HttpServlet {
// Catch any thrown guacamole exception and attempt to pass within the
// HTTP response, logging each error appropriately.
catch (GuacamoleSecurityException e) {
logger.warn("Authorization failed.", e);
sendError(response, HttpServletResponse.SC_FORBIDDEN);
}
catch (GuacamoleResourceNotFoundException e) {
logger.debug("Resource not found.", e);
sendError(response, HttpServletResponse.SC_NOT_FOUND);
}
catch (GuacamoleClientException e) {
logger.warn("Error in client request.", e);
sendError(response, HttpServletResponse.SC_BAD_REQUEST);
logger.warn("Client request rejected: {}", e.getMessage());
sendError(response, e.getStatus(), e.getMessage());
}
catch (GuacamoleException e) {
logger.error("Server error in tunnel", e);
sendError(response, HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
logger.error("Internal server error.", e);
sendError(response, e.getStatus(), "Internal server error.");
}
}

35
guacamole/src/main/java/org/glyptodon/guacamole/net/basic/AuthenticatingHttpServlet.java
View File

@@ -44,6 +44,7 @@ import org.glyptodon.guacamole.net.event.AuthenticationSuccessEvent;
import org.glyptodon.guacamole.net.event.listener.AuthenticationFailureListener;
import org.glyptodon.guacamole.net.event.listener.AuthenticationSuccessListener;
import org.glyptodon.guacamole.properties.GuacamoleProperties;
import org.glyptodon.guacamole.protocol.GuacamoleStatus;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -171,25 +172,27 @@ public abstract class AuthenticatingHttpServlet extends HttpServlet {
}
/**
* Sends an error on the given HTTP response with the given integer error
* code.
* Sends an error on the given HTTP response using the information within
* the given GuacamoleStatus.
*
* @param response The HTTP response to use to send the error.
* @param code The HTTP status code of the error.
* @param guac_status The status to send
* @param message A human-readable message that can be presented to the
* user.
* @throws ServletException If an error prevents sending of the error
* code.
*/
private void sendError(HttpServletResponse response, int code,
String message) throws ServletException {
public static void sendError(HttpServletResponse response,
GuacamoleStatus guac_status, String message)
throws ServletException {
try {
// If response not committed, send error code
// If response not committed, send error code and message
if (!response.isCommitted()) {
response.addHeader("Guacamole-Status-Code", Integer.toString(guac_status.getGuacamoleStatusCode()));
response.addHeader("Guacamole-Error-Message", message);
response.sendError(code);
response.sendError(guac_status.getHttpStatusCode());
}
}
@@ -337,25 +340,13 @@ public abstract class AuthenticatingHttpServlet extends HttpServlet {
// Catch any thrown guacamole exception and attempt to pass within the
// HTTP response, logging each error appropriately.
catch (GuacamoleSecurityException e) {
logger.warn("Permission denied: {}", e.getMessage());
sendError(response, HttpServletResponse.SC_FORBIDDEN,
"Permission denied.");
}
catch (GuacamoleResourceNotFoundException e) {
logger.debug("Resource not found: {}", e.getMessage());
sendError(response, HttpServletResponse.SC_NOT_FOUND,
e.getMessage());
}
catch (GuacamoleClientException e) {
logger.warn("Error in client request: {}", e.getMessage());
sendError(response, HttpServletResponse.SC_BAD_REQUEST,
e.getMessage());
logger.warn("Client request rejected: {}", e.getMessage());
sendError(response, e.getStatus(), e.getMessage());
}
catch (GuacamoleException e) {
logger.error("Internal server error.", e);
sendError(response, HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
"Internal server error.");
sendError(response, e.getStatus(), "Internal server error.");
}
}