opt: gzip + no cdn shi + feeds

2026-06-26 20:57:14 +03:00
parent 78b8bea6f7
commit 98d85ecbf5
10 changed files with 3563 additions and 15 deletions
--- a/blog/feeds.go
+++ b/blog/feeds.go
@@ -0,0 +1,115 @@
+package blog
+
+import (
+	"encoding/xml"
+	"fmt"
+	"strings"
+	"time"
+)
+
+const baseURL = "https://chaosmith.systems"
+
+func generateRSS(s *Store) string {
+	var b strings.Builder
+	b.WriteString(`<?xml version="1.0" encoding="UTF-8"?>` + "\n")
+	b.WriteString(`<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">` + "\n")
+	b.WriteString("  <channel>\n")
+	b.WriteString("    <title>Chaosmith Systems — Field Notes</title>\n")
+	b.WriteString("    <link>" + baseURL + "/blog/</link>\n")
+	b.WriteString("    <description>Engineering, music, and experiments from controlled chaos.</description>\n")
+	b.WriteString("    <language>en</language>\n")
+	b.WriteString(`    <atom:link href="` + baseURL + `/blog/feed.xml" rel="self" type="application/rss+xml"/>` + "\n")
+
+	for _, p := range s.All() {
+		b.WriteString("    <item>\n")
+		b.WriteString("      <title>" + xmlEscape(p.Title) + "</title>\n")
+		b.WriteString("      <link>" + baseURL + "/blog/posts/" + p.Slug + "</link>\n")
+		b.WriteString("      <guid>" + baseURL + "/blog/posts/" + p.Slug + "</guid>\n")
+		b.WriteString("      <description>" + xmlEscape(p.Description) + "</description>\n")
+		b.WriteString("      <pubDate>" + p.Date.Format(time.RFC1123Z) + "</pubDate>\n")
+		b.WriteString("    </item>\n")
+	}
+
+	b.WriteString("  </channel>\n</rss>\n")
+	return b.String()
+}
+
+func generateJSONFeed(s *Store) string {
+	var b strings.Builder
+	b.WriteString(`{"version":"https://jsonfeed.org/version/1.1","title":"Chaosmith Systems — Field Notes","home_page_url":"` + baseURL + `/blog/","feed_url":"` + baseURL + `/blog/feed.json","items":[`)
+
+	first := true
+	for _, p := range s.All() {
+		if !first {
+			b.WriteString(",")
+		}
+		first = false
+		b.WriteString(`{`)
+		b.WriteString(`"id":"` + baseURL + "/blog/posts/" + p.Slug + `",`)
+		b.WriteString(`"url":"` + baseURL + "/blog/posts/" + p.Slug + `",`)
+		b.WriteString(`"title":"` + jsonEscape(p.Title) + `",`)
+		b.WriteString(`"summary":"` + jsonEscape(p.Description) + `",`)
+		b.WriteString(`"date_published":"` + p.Date.Format(time.RFC3339) + `"`)
+		b.WriteString(`}`)
+	}
+
+	b.WriteString("]}")
+	return b.String()
+}
+
+func generateSitemap(s *Store) string {
+	var b strings.Builder
+	b.WriteString(`<?xml version="1.0" encoding="UTF-8"?>` + "\n")
+	b.WriteString(`<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">` + "\n")
+
+	// Static pages
+	b.WriteString("  <url>\n")
+	b.WriteString("    <loc>" + baseURL + "/</loc>\n")
+	b.WriteString("    <changefreq>monthly</changefreq>\n")
+	b.WriteString("  </url>\n")
+	b.WriteString("  <url>\n")
+	b.WriteString("    <loc>" + baseURL + "/blog/</loc>\n")
+	b.WriteString("    <changefreq>weekly</changefreq>\n")
+	b.WriteString("  </url>\n")
+
+	for _, p := range s.All() {
+		b.WriteString("  <url>\n")
+		b.WriteString("    <loc>" + baseURL + "/blog/posts/" + p.Slug + "</loc>\n")
+		b.WriteString("    <lastmod>" + p.Date.Format("2006-01-02") + "</lastmod>\n")
+		b.WriteString("  </url>\n")
+	}
+
+	b.WriteString("</urlset>\n")
+	return b.String()
+}
+
+func xmlEscape(s string) string {
+	var b strings.Builder
+	xml.EscapeText(&b, []byte(s))
+	return b.String()
+}
+
+func jsonEscape(s string) string {
+	var b strings.Builder
+	for _, r := range s {
+		switch r {
+		case '"':
+			b.WriteString(`\"`)
+		case '\\':
+			b.WriteString(`\\`)
+		case '\n':
+			b.WriteString(`\n`)
+		case '\r':
+			b.WriteString(`\r`)
+		case '\t':
+			b.WriteString(`\t`)
+		default:
+			if r < 0x20 {
+				b.WriteString(fmt.Sprintf(`\u%04x`, r))
+			} else {
+				b.WriteRune(r)
+			}
+		}
+	}
+	return b.String()
+}