From 67f1ee07701aeaad20bde78b26823aa051c5365d Mon Sep 17 00:00:00 2001
From: Joshua Goins <josh@redstrate.com>
Date: Mon, 31 Oct 2022 11:11:34 -0400
Subject: [PATCH] Attempt to fix RSS encoding

---
 themes/red/layouts/_default/rss.xml  |  8 ++++--
 themes/red/layouts/partials/rss.html | 38 ++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+), 2 deletions(-)
 create mode 100644 themes/red/layouts/partials/rss.html

diff --git a/themes/red/layouts/_default/rss.xml b/themes/red/layouts/_default/rss.xml
index 74c7afc..7cdd9d8 100644
--- a/themes/red/layouts/_default/rss.xml
+++ b/themes/red/layouts/_default/rss.xml
@@ -11,7 +11,10 @@
         {{- $pages = $pages | first $limit -}}
         {{- end -}}
         {{- printf "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?>" | safeHTML }}
-<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/"
+     xmlns:content="http://purl.org/rss/1.0/modules/content/"
+     xmlns:atom="http://www.w3.org/2005/Atom"
+     xml:base="{{ .Site.BaseURL }}">
     <channel>
         <title>{{ .Site.Author.name }}'s blog</title>
         <link>{{ .Permalink }}</link>
@@ -31,7 +34,8 @@
             <pubDate>{{ .Date.Format "Mon, 02 Jan 2006 15:04:05 -0700" | safeHTML }}</pubDate>
             {{ with .Site.Author.email }}<author>{{.}}{{ with $.Site.Author.name }} ({{.}}){{end}}</author>{{end}}
             <guid>{{ .Permalink }}</guid>
-            <description>{{ .Content | html }}</description>
+            <description>{{ "<![CDATA[" | safeHTML }} {{ .Summary }}]]></description>
+            <content:encoded>{{ "<![CDATA[" | safeHTML }} {{ partial "rss.html" . | safeHTML }}]]></content:encoded>
         </item>
         {{ end }}
     </channel>
diff --git a/themes/red/layouts/partials/rss.html b/themes/red/layouts/partials/rss.html
new file mode 100644
index 0000000..da021ae
--- /dev/null
+++ b/themes/red/layouts/partials/rss.html
@@ -0,0 +1,38 @@
+
+{{ $html := .Content | safeHTML }}
+
+{{ $hrefs := findRE "href=\"([^\"]*)\"" $html }}
+{{ range $href := $hrefs}}
+{{ $absHref := strings.TrimPrefix "href=\"" $href  }}
+{{ $absHref = strings.TrimSuffix "\"" $absHref  }}
+{{ $absHref = printf "href=\"%s\"" ($absHref | absURL) }}
+{{ $html = replace $html $href $absHref }}
+{{ end }}
+
+{{ $srcs := findRE "src=\"([^\"]*)\"" $html }}
+{{ range $src := $srcs}}
+{{ $absSrc := strings.TrimPrefix "src=\"" $src  }}
+{{ $absSrc = strings.TrimSuffix "\"" $absSrc  }}
+{{ $absSrc = printf "src=\"%s\"" ($absSrc | absURL) }}
+{{ $html = replace $html $src $absSrc }}
+{{ end }}
+
+{{ $srcset := findRE "srcset=\"([^\"]*)\"" $html }}
+{{ range $set := $srcset}}
+{{ $parts := strings.TrimPrefix "srcset=\"" $set  }}
+{{ $parts = strings.TrimSuffix "\"" $parts  }}
+{{ $parts = split $parts "," }}
+{{ $newSrcset := slice }}
+{{ range $part := $parts }}
+{{ $part = $part | replaceRE "^\\s*(.*)\\s*$" "$1" }}
+{{ $lg := split $part " " }}
+{{ $href := index $lg 0 | absURL }}
+{{ $size := index $lg 1 }}
+{{ $newSrcset = $newSrcset | append (printf "%s %s" $href $size) }}
+{{ end }}
+{{ $newSrcset = delimit $newSrcset ", " }}
+{{ $newSrcset = printf "srcset=\"%s\"" $newSrcset }}
+{{ $html = replace $html $set $newSrcset }}
+{{ end }}
+
+{{ return $html }}
\ No newline at end of file