Method and apparatus for operating an ICAP server

A method for operating a client of an Internet Content Adaptation Protocol, ICAP, server, the method comprising:

• receiving a message from an entity other than the ICAP server;
• checking the message for a content type;
• and
• if the message includes a content type, applying a message transmission policy corresponding to the ICAP server according to the content type,
• wherein the message transmission policy comprises a specification of messages for which a particular transmission method is to be used when transmitting to the ICAP server, the transmission method comprising one of sending a message preview, sending the entire message or not sending the message.

A method for operating a client of an Internet Content Adaptation Protocol, ICAP, server, the method comprising:

• receiving a message from an entity other than the ICAP server;
• checking whether the received message is to be transmitted to the ICAP server as a Request Modification mode, REQMOD, request or a Response Modification mode, RESPMOD, request, and
• applying a message transmission policy corresponding to the ICAP server according to the mode type of the request,
• wherein the message transmission policy comprises a specification of messages for which a particular transmission method is to be used when transmitting to the ICAP server, the transmission method comprising one of sending a message preview, sending the entire message or not sending the message.

An Internet Content Adaptation Protocol, ICAP, client node, comprising:

• a receiving unit configured to receive a message from an entity other than the ICAP server of which the node is client;
• an analysis unit, configured to check the received message for content type;
• and
• a transmission unit configured, if the message includes a content type, to apply a message transmission policy corresponding to the ICAP server of which the node is client according to the content type,
• wherein the message transmission policy comprises a specification of messages for which a particular transmission method is to be used when transmitting to the ICAP server, the transmission method comprising one of sending a message preview, sending the entire message or not sending the message.