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[ikiwiki.git] / doc / plugins / openid.mdwn

diff --git a/doc/plugins/openid.mdwn b/doc/plugins/openid.mdwn
index 7da2f85759099a340486eb09c438ce00980401b1..f3b3abfbb6cd8af0203d522ca13d07201a3d540b 100644 (file)
--- a/doc/plugins/openid.mdwn
+++ b/doc/plugins/openid.mdwn
@@ -13,3 +13,20 @@ to support users entering "https" OpenID urls.
 
 This plugin is enabled by default, but can be turned off if you want to
 only use some other form of authentication, such as [[passwordauth]].
+
+## options
+
+These options do not normally need to be set, but can be useful in
+certian setups.
+
+* `openid_realm` can be used to control the scope of the openid request.
+  It defaults to the `cgiurl` (or `openid_cgiurl` if set); only allowing
+  ikiwiki's [[CGI]] to authenticate. If you have multiple ikiwiki instances,
+  or other things using openid on the same site, you may choose to put them
+  all in the same realm to improve the user's openid experience. It is an
+  url pattern, so can be set to eg "http://*.example.com/"
+
+* `openid_cgiurl` can be used to cause a different than usual `cgiurl`
+  to be used when doing openid authentication. The `openid_cgiurl` must
+  point to an ikiwiki [[CGI]], and it will need to match the `openid_realm`
+  to work.