HAProxy Enterprise Documentation 2.1r1

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:

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 local host
`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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ACL Reference