From 6c6b1bd1035ae68a18bd83faf7ff1297ead60e8c Mon Sep 17 00:00:00 2001
From: Serghei Iakovlev <egrep@protonmail.ch>
Date: Fri, 3 Jun 2022 12:51:52 +0200
Subject:  Do not allow modification of date formats that are required by spec

---
 layouts/_default/list.atom.xml  | 6 +++---
 layouts/_default/list.feed.xml  | 6 +++---
 layouts/_default/list.json.json | 4 ++--
 layouts/_default/sitemap.xml    | 4 +---
 4 files changed, 9 insertions(+), 11 deletions(-)

(limited to 'layouts/_default')

diff --git a/layouts/_default/list.atom.xml b/layouts/_default/list.atom.xml
index 75892fd..5da5f25 100644
--- a/layouts/_default/list.atom.xml
+++ b/layouts/_default/list.atom.xml
@@ -33,7 +33,7 @@
     </author>{{ end }}{{ with site.Params.Copyright }}{{ $copyright := replace . "{year}" now.Year }}{{ $copyright = replace $copyright "&copy;" "©" }}
     <rights>{{ $copyright | plainify }}</rights>{{ end }}
     <generator uri="https://gohugo.io" version="{{ hugo.Version }}">Hugo</generator>{{ if not site.LastChange.IsZero }}
-    <updated>{{ site.LastChange.UTC.Format site.Params.dateFormatFeed }}</updated>{{ end }}{{ $uuid := sha1 (site.BaseURL | absURL) }}
+    <updated>{{ site.LastChange.Format "2006-01-02T15:04:05Z07:00" | safeHTML }}</updated>{{ end }}{{ $uuid := sha1 (site.BaseURL | absURL) }}
     <id>urn:uuid:{{ substr $uuid 0 8 }}-{{ substr $uuid 8 4 }}-5{{ substr $uuid 13 3 }}-{{ substr $uuid 16 1 }}9{{ substr $uuid 17 2 }}-{{ substr $uuid 21 12 }}</id>{{- range $pages }}
     <entry>
         {{- $url := .Permalink | absURL }}{{ $uuid := sha1 (.Permalink | absURL) }}{{ $page := . }}
@@ -42,8 +42,8 @@
         <link rel="alternate" type="type/html" href="{{ $url }}?utm_source=atom_feed" />
         {{ printf `<title type="html"><![CDATA[%s]]></title>` .Title | safeHTML }}{{ range first 5 (site.RegularPages.Related .) }}
         <link href="{{ .Permalink }}?utm_source=atom_feed" rel="related" type="text/html" title="{{ .Title }}" />{{ end }}
-        <published>{{ (.PublishDate.Format site.Params.dateFormatFeed) | html }}</published>{{ if ne .Date .Lastmod }}
-        <updated>{{ .Lastmod.UTC.Format site.Params.dateFormatFeed  }}</updated>{{ end }}
+        <published>{{ .Date.Format "2006-01-02T15:04:05Z07:00" | safeHTML }}</published>{{ if ne .Date .Lastmod }}
+        <updated>{{ .Lastmod.Format "2006-01-02T15:04:05Z07:00" | safeHTML  }}</updated>{{ end }}
         <id>urn:uuid:{{ substr $uuid 0 8 }}-{{ substr $uuid 8 4 }}-5{{ substr $uuid 13 3 }}-{{ substr $uuid 16 1 }}9{{ substr $uuid 17 2 }}-{{ substr $uuid 21 12 }}</id>
         {{ if .Params.author }}
             {{- $author_type := (printf "%T" .Params.author) }}
diff --git a/layouts/_default/list.feed.xml b/layouts/_default/list.feed.xml
index ae16aca..d66688b 100644
--- a/layouts/_default/list.feed.xml
+++ b/layouts/_default/list.feed.xml
@@ -14,7 +14,7 @@
 {{- $limit := site.Params.feedSize | default 25 -}}
 {{- $pages = $pages | first $limit -}}
 
-{{- safeHTML "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\" ?>" }}
+{{- printf "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\" ?>" | safeHTML }}
 <rss version="2.0"
     xmlns:content="http://purl.org/rss/1.0/modules/content/"
     xmlns:wfw="http://wellformedweb.org/CommentAPI/"
@@ -49,11 +49,11 @@
     {{ printf `<dc:creator type="html"><![CDATA[%s]]></dc:creator>` . | safeHTML }}{{ end }}{{ with site.LanguageCode }}
     <language>{{ . }}</language>{{ end }}{{ with site.Params.Copyright }}{{ $copyright := replace . "{year}" now.Year }}{{ $copyright = replace $copyright "&copy;" "©" }}
     <copyright>{{ $copyright | plainify }}</copyright>{{ end }}{{ if not site.LastChange.IsZero }}
-    <lastBuildDate>{{ site.LastChange.UTC.Format site.Params.dateFormatRFC822Z | html }}</lastBuildDate>{{ end }}{{- range $pages }}
+    <lastBuildDate>{{ site.LastChange.Format "Mon, 02 Jan 2006 15:04:05 -0700" | safeHTML }}</lastBuildDate>{{ end }}{{- range $pages }}
     <item>
         {{ printf `<title type="html"><![CDATA[%s]]></title>` .Title | safeHTML }}
         <link>{{ .Permalink | absURL }}?utm_source=rss_feed</link>
-        <pubDate>{{ .PublishDate.UTC.Format site.Params.dateFormatRFC822Z | html }}</pubDate>
+        <pubDate>{{ .Date.Format "Mon, 02 Jan 2006 15:04:05 -0700" | safeHTML }}</pubDate>
         <category>{{ .Section }}</category>{{ range (.GetTerms "tags") }}
         <category>{{ .LinkTitle }}</category>{{end}}
         <guid isPermaLink="false">{{ md5 .Permalink }}</guid>
diff --git a/layouts/_default/list.json.json b/layouts/_default/list.json.json
index b912df0..70ea7a4 100644
--- a/layouts/_default/list.json.json
+++ b/layouts/_default/list.json.json
@@ -36,8 +36,8 @@
       "url": {{ printf "%s?utm_source=json_feed" .Permalink | jsonify  }},
       "title": {{ .Title | plainify | chomp | jsonify }},
       "summary": {{ .Summary | plainify | chomp | jsonify }},
-      "date_published": {{ .PublishDate.UTC.Format site.Params.dateFormatFeed | jsonify  }}{{ if ne .Date .Lastmod }},
-      "date_modified" : {{ .Lastmod.UTC.Format site.Params.dateFormatFeed | jsonify  }}{{ end }}
+      "date_published": {{ .PublishDate.Format "2006-01-02T15:04:05Z07:00" | jsonify  }}{{ if ne .Date .Lastmod }},
+      "date_modified" : {{ .Lastmod.Format "2006-01-02T15:04:05Z07:00" | jsonify }}{{ end }}
     }
     {{- end}}
   ]
diff --git a/layouts/_default/sitemap.xml b/layouts/_default/sitemap.xml
index 3745dc5..939dcac 100644
--- a/layouts/_default/sitemap.xml
+++ b/layouts/_default/sitemap.xml
@@ -1,12 +1,10 @@
-{{- $dateFormat := site.Params.dateFormatFeed | default "2006-01-02T15:04:05-07:00" -}}
-
 {{- printf "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?>" | safeHTML }}
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
   xmlns:xhtml="http://www.w3.org/1999/xhtml">
   {{ range .Data.Pages }}{{ if ne .Params.private true }}
   <url>
     <loc>{{ .Permalink }}</loc>{{ if not .Lastmod.IsZero }}
-    <lastmod>{{ safeHTML ( .Lastmod.Format $dateFormat | html ) }}</lastmod>{{ end }}{{ with .Sitemap.ChangeFreq }}
+    <lastmod>{{ safeHTML ( .Lastmod.Format "2006-01-02T15:04:05Z07:00" | jsonify ) }}</lastmod>{{ end }}{{ with .Sitemap.ChangeFreq }}
     <changefreq>{{ . }}</changefreq>{{ end }}{{ if ge .Sitemap.Priority 0.0 }}
     <priority>{{ .Sitemap.Priority }}</priority>{{ end }}{{ if .IsTranslated }}{{ range .Translations }}
     <xhtml:link
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