X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/92a6f2e5e88b513ceaa1b9083ddbf6e928122893..aa4a31f75b0a59dde6edc51da6a166ad4f1c78d6:/doc/plugins/httpauth.mdwn

diff --git a/doc/plugins/httpauth.mdwn b/doc/plugins/httpauth.mdwn
index 77796a3d7..b2f789b8e 100644
--- a/doc/plugins/httpauth.mdwn
+++ b/doc/plugins/httpauth.mdwn
@@ -2,7 +2,9 @@
 [[!tag type/auth]]
 
 This plugin allows HTTP basic authentication to be used to log into the
-wiki. 
+wiki. In this mode, the web browser authenticates the user by some means,
+and sets the `REMOTE_USER CGI` environment variable. This plugin trusts
+that if that variable is set, the user is authenticated.
 
 ## fully authenticated wiki
 
@@ -14,12 +16,31 @@ signed into the wiki. This method is suitable only for private wikis.
 ## separate cgiauthurl
 
 To use httpauth for a wiki where the content is public, and where
-the `ikiwiki.cgi` needs to be usable without authentication (for searching
-and so on), you can configure a separate url that is used for
-authentication, via the `cgiauthurl` option in the setup file. This
-url will then be redirected to whenever authentication is needed.
+the `ikiwiki.cgi` needs to be usable without authentication (for searching,
+or logging in using other methods, and so on), you can configure a separate
+url that is used for authentication, via the `cgiauthurl` option in the setup
+file. This url will then be redirected to when a user chooses to log in using
+httpauth.
 
 A typical setup is to make an `auth` subdirectory, and symlink `ikiwiki.cgi` 
 into it. Then configure the web server to require authentication only for
 access to the `auth` subdirectory. Then `cgiauthurl` is pointed at this
 symlink.
+
+## using only httpauth for some pages
+
+If you want to only use httpauth for editing some pages, while allowing
+other authentication methods to be used for other pages, you can
+configure `httpauth_pagespec` in the setup file. This makes Edit
+links on pages that match the [[ikiwiki/PageSpec]] automatically use
+the `cgiauthurl`, and prevents matching pages from being edited by
+users authentication via other methods.
+
+## Using httpauth with nginx
+
+You have to pass the $remote_user variable to the CGI:
+
+    location /ikiwiki.cgi {
+        fastcgi_param REMOTE_USER $remote_user if_not_empty;
+        ....
+    }