Communications apparatus and service providing technique using communications apparatus

A service providing method performed by a communication apparatus for providing a prescribed service from the communication apparatus via a network based on a standardized interface of a prescribed protocol, comprising the steps of:

• in response to a request message representing a request for call-up of the standardized interface, a processor of the communication apparatus extracts proof information about a user who made the request from a header region of the request message, the proof information including information regarding valid services to be admitted with the proof information generated in accordance with a non-standardized interface;
• verifying, by the processor, the validity of the user based on the proof information;
• in response to a request message representing a request for call-up of the standardized interface, the processor extracting session identification information for identifying a session with a source apparatus of the request message from a header region of the request message;
• verifying validity of the session based on the session identification information, the session identification information generated in accordance with a non-standardized interface;
• and
• executing, by the processor, a process in accordance with the standardized interface for which the call-up is made by the request message if the validity of the user and the session are verified.

A machine-readable recording medium storing a service providing program, which when executed by a communications apparatus for providing a prescribed service via a network based on a standardized interface of a prescribed protocol, causes the communications apparatus to perform a method comprising:

• receiving a request message representing a request for call-up of the standardized interface, and extracting proof information corresponding to a user who made the request from a header region of the request message, the proof information including information regarding valid services to be admitted with the proof information generated in accordance with a non-standardized interface;
• verifying validity of the user based on the extracted proof information;
• receiving a request message representing a request for call-up of the standardized interface, and extracting session identification information for identifying a session with a source apparatus of request message from a header region of the request message;
• verifying validity of the session based on the session identification information, the session identification information generated in accordance with a non-standardized interface;
• and
• executing the prescribed service in accordance with the standardized interface for which the call-up is made by the request message if the user validity and session validity are verified.