Blue Coat Systems Proxy SG manual Appendix D CPL Substitutions

Appendix D: CPL Substitutions

This appendix lists all substitution variables available in CPL.

To use a variable in CPL, it is expressed as: $(<field-id>, such as $(cs-bodylength).

For fields that have both ELFF and CPL tokens, either token can be used. For example, $(cs-ip) and $(proxy.address) are equivalent.

Note that $(request.x_header.<x-header-name>) and $(response.x_header.<x-header-name>) are also valid substitutions, but are not included in the tables below, because they have no corresponding ELFF tokens.

The available substitutions are organized in the following categories

•	bytes	•	streaming
•	connection	•	time
•	instant messaging (im) •		url
•	req_rsp_line	•	user
•	special_token	•	ci_request_header
•	status	•	si_response_header
Category: bytes
ELFF		CPL		Description
cs-bodylength				Number of bytes in the body (excludes
				header) sent from client to appliance.
cs-bytes				Number of bytes sent from client to
				appliance.
cs-headerlength				Number of bytes in the header sent from
				client to appliance.
rs-bodylength				Number of bytes in the body (excludes
				header) sent from upstream host to
				appliance.
rs-bytes				Number of bytes sent from upstream host to
				appliance.
rs-headerlength				Number of bytes in the header sent from
				upstream host to appliance.
sc-bodylength				Number of bytes in the body (excludes
				header) sent from appliance to client.
sc-bytes				Number of bytes sent from appliance to
				client.
sc-headerlength				Number of bytes in the header sent from
				appliance to client.
sr-bodylength				Number of bytes in the body (excludes
				header) sent from appliance to upstream
				host.