From 4491154cd8fdc0afba789aa3f4752c6d36147dce Mon Sep 17 00:00:00 2001
From: Rohan Kumar <seirdy@seirdy.one>
Date: Tue, 15 Mar 2022 13:48:12 -0700
Subject: [PATCH] Webrings: add referrers, hotline, and criteria

- Some webrings I might eventually join require sending the origin via
  referrer. Make per-link exceptions to my "no-referrer" policy sent via
  HTTP header.
- Add hotline webring
- Add criteria for me to join a webring.
---
 csv/webrings.csv               |  1 +
 layouts/partials/webrings.html | 28 +++++++++++++++++++++-------
 2 files changed, 22 insertions(+), 7 deletions(-)

diff --git a/csv/webrings.csv b/csv/webrings.csv
index 38730f2..3514be7 100644
--- a/csv/webrings.csv
+++ b/csv/webrings.csv
@@ -3,3 +3,4 @@ An Indieweb Webring,https://xn--sr8hvo.ws/%F0%9F%98%A9%F0%9F%9A%A3%F0%9F%8D%91/p
 Fediring,https://fediring.net/previous?host=seirdy.one,https://fediring.net/,https://fediring.net/next?host=seirdy.one
 The Yesterweb ring,https://webring.yesterweb.org/noJS/index.php?d=prev&url=https://seirdy.one/,https://yesterweb.org/webring/,https://webring.yesterweb.org/noJS/index.php?d=next&url=https://seirdy.one/
 The Retronaut webring,https://webring.dinhe.net/prev/https://seirdy.one,https://webring.dinhe.net/,https://webring.dinhe.net/next/https://seirdy.one
+Hotline Webring,https://hotlinewebring.club/seirdy/previous,https://hotlinewebring.club,https://hotlinewebring.club/seirdy/next
diff --git a/layouts/partials/webrings.html b/layouts/partials/webrings.html
index b204d1f..e3d372f 100644
--- a/layouts/partials/webrings.html
+++ b/layouts/partials/webrings.html
@@ -1,11 +1,25 @@
 <h2 id="part-of">Webrings</h2>
 
-<p>This site is part of some <a href="https://en.wikipedia.org/wiki/Webring">webrings</a>:</p>
+<p>This site is part of some <a href="https://en.wikipedia.org/wiki/Webring">webrings</a>:{{site.BaseURL}}</p>
 
-{{ range $i, $r := after 1 (getCSV "," "/csv/webrings.csv") }}
-<p>
-<a href="{{- index $r 1 -}}" rel="nofollow ugc">←</a> ·
-<a href="{{- index $r 2 -}}">{{- index $r 0 -}}</a> ·
-<a href="{{- index $r 3 -}}" rel="nofollow ugc">→</a>
-</p>
+<!--
+	Some webrings require the sending of a "Referer" header,
+	but my site has two non-canonical mirrors. Don't add those.
+-->
+{{ $refPol := "no-referrer" }}
+{{ if eq site.BaseURL "https://seirdy.one/" }}
+	{{ $refPol = "strict-origin" }}
 {{ end }}
+<ul class="unstyled-list">
+{{ range $i, $r := after 1 (getCSV "," "/csv/webrings.csv") }}
+<li>
+<p>
+<a href="{{- index $r 1 -}}" rel="nofollow ugc" referrerpolicy="{{ $refPol }}">←</a> ·
+<a href="{{- index $r 2 -}}">{{- index $r 0 -}}</a> ·
+<a href="{{- index $r 3 -}}" rel="nofollow ugc" referrerpolicy="{{ $refPol }}">→</a>
+</p>
+</li>
+{{ end }}
+</ul>
+
+<p>If you're part of a webring and would like me to join, just ask. I'll probably accept if joining only requires me to add hyperlinks to this page (no scripts, external content, or images), and if the ring doesn't seem to promote anything I find objectionable.</p>