WEB REDIRECTION FOR CONTENT FILTERING

摘要

This specification generally relates to using redirect messages to implement content filtering. One example method includes determining that access to a network resource should be redirected based at least in part on access behavior associated with the network resource; receiving from a client a first request for the network resource, the first request including an original location of the network resource; sending a redirect response to the client including a modified location for the network resource different than the original location; receiving a second request for the network resource from the client including the modified location; retrieving the network resource from the original location; performing at least one action on the retrieved network resource; and selectively sending the retrieved network resource to the client based at least in part on a result associated with the at least one action.

主权项

1. A computer-implemented method executed by one or more processors, the method comprising:
receiving from a client a first request for a network resource, the first request including an original location of the network resource; determining that the requested network resource is to be analyzed for suitability before making the requested network resource available to the client; in response to determining that the requested network resource is to be analyzed, sending a redirect response to the client including a modified location for the network resource different than the original location; receiving from the client a second request for the network resource, the second request including the modified location; in response to receiving from the client the second request for the network resource, performing a suitability analysis by:
retrieving the network resource from the original location;applying one or more objective criteria to determine whether the retrieved network resource is suitable to send to the client; andin response to determining that the retrieved network resource is suitable, sending the retrieved network resource to the client.