This module implements the cookie hooks called from http_open/3, adding cookie handling to the client.

This library supports a notion of clients. A client is a (ground) term to which a cookie database is connected. This allows a single Prolog process to act as multiple clients. The default client is called default. Use the option client(+ClientId) to select another client.

The client and cookie database can be inspected and cleared using these predicates.

• cookie_remove_client/1
• cookie_remove_all_clients/0
• cookie_current_cookie/4

To be done

- add hooks to http_get/3 and http_post/4

 http:write_cookies(+Out, +Parts, +Options) is det[multifile]

Emit a cookie header for the current request.

 cookie(+ClientId, +Parts, -Cookie) is semidet[private]

Cookie is the cookie for Parts for the given ClientId

 cookie_value(+NameValueList, -CookieString) is det[private]

Create a cookie value string with name=value, separated by ";".

 http:update_cookies(+CookieData, +Parts, +Options) is semidet[multifile]

Update the client cookie database.

 remove_cookies(+ClientId, +Host, +Path, +Name, +SetOptions) is det[private]

Remove all cookies that conflict with the new set-cookie command.

 current_cookie(+ClientId, +Host, +Path, -Name, -Value) is nondet[private]

Find cookies that match the given request.

 cookie_remove_client(+ClientId) is det

Fake user quitting a browser. Removes all cookies that do not have an expire date.

 cookie_remove_all_clients is det

Simply logout all clients. See http_remove_client/1.

 current_client(?ClientId) is nondet[private]

True if ClientId is the identifier of a client.

 http_current_cookie(?ClientId, ?Name, ?Value, ?Options) is nondet[private]

Query current cookie database. If Name is given, it is matched case insensitive against the known cookies. If it is unbound, the cookie name is returned in its original case (case preserving).

Undocumented predicates

The following predicates are exported, but not or incorrectly documented.

 cookie_current_cookie(Arg1, Arg2, Arg3, Arg4)