Predefined ACLs

Certain predefined ACLs are hardcoded into HAProxy. Their names are in upper case to avoid confusion. Below is the list of predefined ACLs with their equivalence: .. container:: table-responsive

ACL name	Equivalent to	Usage
FALSE	always_false	Never match
HTTP	req_proto_http	Match if protocol is valid HTTP
HTTP_1.0	req_ver 1.0	Match HTTP version 1.0
HTTP_1.1	req_ver 1.1	Match HTTP version 1.1
HTTP_CONTENT	hdr_val(content-length) gt 0	Match an existing content-length
HTTP_URL_ABS	url_reg ^[^/:]*://	Match absolute URL with scheme
HTTP_URL_SLASH	url_beg /	Match URL beginning with /
HTTP_URL_STAR	url *	Match URL equal to *
LOCALHOST	src 127.0.0.1/8	Match connection from localhost
METH_CONNECT	method CONNECT	Match HTTP CONNECT method
METH_DELETE	method DELETE	Match HTTP DELETE method
METH_GET	method GET HEAD	Match HTTP GET or HEAD method
METH_HEAD	method HEAD	Match HTTP HEAD method
METH_OPTIONS	method OPTIONS	Match HTTP OPTIONS method
METH_POST	method POST	Match HTTP POST method
METH_PUT	method PUT	Match HTTP PUT method
METH_TRACE	method TRACE	Match HTTP TRACE method
RDP_COOKIE	req_rdp_cookie_cnt gt 0	Match presence of an RDP cookie
REQ_CONTENT	req_len gt 0	Match data in the request buffer
TRUE	always_true	Always match
WAIT_END	wait_end	Wait for end of content analysis

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