From 172ebc2cefcc3887b4b2a364eca93cbf8aa4e0c4 Mon Sep 17 00:00:00 2001
From: maxim nikonov <maxim.nikonov@hqo.co>
Date: Sat, 20 Sep 2025 01:12:44 +0500
Subject: feat

---
 tags.go | 88 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 tags.go

(limited to 'tags.go')

diff --git a/tags.go b/tags.go
new file mode 100644
index 0000000..caffd4a
--- /dev/null
+++ b/tags.go
@@ -0,0 +1,88 @@
+// Should be compiled to binary to be used as CGI script
+package main
+
+import (
+	"fmt"
+	"html"
+	"io/fs"
+	"net/url"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+)
+
+func extractTitle(content string) string {
+	titleRegex := regexp.MustCompile(`(?i)<title>(.*?)</title>`)
+	matches := titleRegex.FindStringSubmatch(content)
+	if len(matches) > 1 {
+		return matches[1]
+	}
+	return "Без названия"
+}
+
+func main() {
+	// CGI header
+	fmt.Println("Content-Type: text/html; charset=utf-8")
+	fmt.Println()
+
+	// Получаем query string из окружения
+	rawQuery := os.Getenv("QUERY_STRING")
+	values, _ := url.ParseQuery(rawQuery)
+	tag := values.Get("tag")
+	if tag == "" {
+		fmt.Println("<p>Error: no tag specified</p>")
+		return
+	}
+
+	postsDir := "../posts"
+	tagRegex := regexp.MustCompile(`data-tag="` + regexp.QuoteMeta(tag) + `"`)
+
+	type Post struct {
+		Path  string
+		Title string
+	}
+
+	var matches []Post
+
+	filepath.WalkDir(postsDir, func(path string, d fs.DirEntry, err error) error {
+		if err != nil {
+			return nil
+		}
+		if !d.IsDir() {
+			contentBytes, err := os.ReadFile(path)
+			if err == nil && tagRegex.Match(contentBytes) {
+				content := string(contentBytes)
+				title := extractTitle(content)
+				relPath := "/posts/" + filepath.Base(path)
+				matches = append(matches, Post{Path: relPath, Title: title})
+			}
+		}
+		return nil
+	})
+
+	// Составляем <ul>
+	var b strings.Builder
+	b.WriteString("<ul>\n")
+	for _, post := range matches {
+		fmt.Fprintf(&b, "<li><a class=\"text-sm underline\" href=\"%s\">%s</a></li>\n",
+			html.EscapeString(post.Path),
+			html.EscapeString(post.Title))
+	}
+	b.WriteString("</ul>")
+
+	// Читаем шаблон
+	templateBytes, err := os.ReadFile("../templates/tags.html")
+	if err != nil {
+		fmt.Println("<p>Error: template not found</p>")
+		return
+	}
+	template := string(templateBytes)
+
+	// Заменяем маркеры
+	output := strings.Replace(template, "<!-- %cgi.list% -->", b.String(), 1)
+	output = strings.Replace(output, "<!-- %cgi.tag% -->", html.EscapeString(tag), 1)
+
+	// Отдаём результат
+	fmt.Print(output)
+}
\ No newline at end of file
-- 
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