Add slug support and new admin features

This commit is contained in:
Tomas Dvorak
2026-03-14 10:40:04 +01:00
parent 4773e4cab1
commit 21574a8b30
31 changed files with 37490 additions and 36033 deletions
+476 -154
View File
@@ -6,6 +6,11 @@ import (
"encoding/base64"
"encoding/json"
"fmt"
"image"
"image/color"
"image/draw"
_ "image/jpeg"
"image/png"
"io"
"log"
"net/http"
@@ -19,11 +24,6 @@ import (
"strings"
"sync"
"time"
"image"
"image/color"
"image/draw"
"image/png"
_ "image/jpeg"
)
const (
@@ -44,107 +44,131 @@ func dataPath() string {
// ---------------- Image normalization for blog thumbnails ----------------
// Target dimensions for blog images
const (
blogImgW = 1600
blogImgH = 969
blogImgW = 1600
blogImgH = 969
)
// avgLuma computes average luminance of an image (0..255)
func avgLuma(img image.Image) float64 {
b := img.Bounds()
if b.Empty() { return 0 }
var sum uint64
var n uint64
for y := b.Min.Y; y < b.Max.Y; y += 4 { // sample every 4th row for speed
for x := b.Min.X; x < b.Max.X; x += 4 { // sample every 4th column
r,g,bv,_ := img.At(x,y).RGBA()
r8 := float64(r>>8)
g8 := float64(g>>8)
b8 := float64(bv>>8)
// Rec. 601 approximate luma
l := 0.299*r8 + 0.587*g8 + 0.114*b8
if l < 0 { l = 0 }
if l > 255 { l = 255 }
sum += uint64(l)
n++
}
}
if n == 0 { return 0 }
return float64(sum)/float64(n)
b := img.Bounds()
if b.Empty() {
return 0
}
var sum uint64
var n uint64
for y := b.Min.Y; y < b.Max.Y; y += 4 { // sample every 4th row for speed
for x := b.Min.X; x < b.Max.X; x += 4 { // sample every 4th column
r, g, bv, _ := img.At(x, y).RGBA()
r8 := float64(r >> 8)
g8 := float64(g >> 8)
b8 := float64(bv >> 8)
// Rec. 601 approximate luma
l := 0.299*r8 + 0.587*g8 + 0.114*b8
if l < 0 {
l = 0
}
if l > 255 {
l = 255
}
sum += uint64(l)
n++
}
}
if n == 0 {
return 0
}
return float64(sum) / float64(n)
}
// fitWithin returns destination size that fits source into max size, without upscaling
func fitWithin(sw, sh, mw, mh int) (int, int) {
if sw <= 0 || sh <= 0 { return 0, 0 }
if sw <= mw && sh <= mh {
return sw, sh
}
wr := float64(mw) / float64(sw)
hr := float64(mh) / float64(sh)
r := wr
if hr < wr { r = hr }
dw := int(float64(sw) * r)
dh := int(float64(sh) * r)
if dw < 1 { dw = 1 }
if dh < 1 { dh = 1 }
return dw, dh
if sw <= 0 || sh <= 0 {
return 0, 0
}
if sw <= mw && sh <= mh {
return sw, sh
}
wr := float64(mw) / float64(sw)
hr := float64(mh) / float64(sh)
r := wr
if hr < wr {
r = hr
}
dw := int(float64(sw) * r)
dh := int(float64(sh) * r)
if dw < 1 {
dw = 1
}
if dh < 1 {
dh = 1
}
return dw, dh
}
// scaleNearest performs nearest-neighbor downscaling from src to a new RGBA of size (dw, dh)
func scaleNearest(src image.Image, dw, dh int) *image.RGBA {
dst := image.NewRGBA(image.Rect(0,0,dw,dh))
sb := src.Bounds()
sw := sb.Dx()
sh := sb.Dy()
for y := 0; y < dh; y++ {
sy := sb.Min.Y + int(float64(y)*float64(sh)/float64(dh))
for x := 0; x < dw; x++ {
sx := sb.Min.X + int(float64(x)*float64(sw)/float64(dw))
dst.Set(x, y, src.At(sx, sy))
}
}
return dst
dst := image.NewRGBA(image.Rect(0, 0, dw, dh))
sb := src.Bounds()
sw := sb.Dx()
sh := sb.Dy()
for y := 0; y < dh; y++ {
sy := sb.Min.Y + int(float64(y)*float64(sh)/float64(dh))
for x := 0; x < dw; x++ {
sx := sb.Min.X + int(float64(x)*float64(sw)/float64(dw))
dst.Set(x, y, src.At(sx, sy))
}
}
return dst
}
// normalizeBlogImage decodes any supported image (PNG/JPEG) and writes a 1600x969 PNG with letterboxing (black/white)
func normalizeBlogImage(r io.Reader, outPath string) error {
img, _, err := image.Decode(r)
if err != nil {
return fmt.Errorf("decode image: %w", err)
}
// Choose background based on average luminance
l := avgLuma(img)
bg := color.Black
if l > 160 { // bright image -> white bg; tweak threshold as needed
bg = color.White
}
// Compute fitted size (no upscaling)
srcB := img.Bounds()
dw, dh := fitWithin(srcB.Dx(), srcB.Dy(), blogImgW, blogImgH)
var scaled image.Image
if dw == srcB.Dx() && dh == srcB.Dy() {
scaled = img
} else {
scaled = scaleNearest(img, dw, dh)
}
// Compose centered on canvas
canvas := image.NewRGBA(image.Rect(0,0,blogImgW,blogImgH))
draw.Draw(canvas, canvas.Bounds(), &image.Uniform{C:bg}, image.Point{}, draw.Src)
offX := (blogImgW - dw) / 2
offY := (blogImgH - dh) / 2
draw.Draw(canvas, image.Rect(offX, offY, offX+dw, offY+dh), scaled, scaled.Bounds().Min, draw.Over)
// Write PNG atomically
if err := os.MkdirAll(filepath.Dir(outPath), 0755); err != nil { return err }
tmp := outPath + ".tmp"
f, err := os.Create(tmp)
if err != nil { return err }
enc := png.Encoder{CompressionLevel: png.BestSpeed}
if err := enc.Encode(f, canvas); err != nil {
f.Close(); _ = os.Remove(tmp); return fmt.Errorf("encode png: %w", err)
}
f.Close()
_ = os.Remove(outPath)
if err := os.Rename(tmp, outPath); err != nil { return err }
return nil
img, _, err := image.Decode(r)
if err != nil {
return fmt.Errorf("decode image: %w", err)
}
// Choose background based on average luminance
l := avgLuma(img)
bg := color.Black
if l > 160 { // bright image -> white bg; tweak threshold as needed
bg = color.White
}
// Compute fitted size (no upscaling)
srcB := img.Bounds()
dw, dh := fitWithin(srcB.Dx(), srcB.Dy(), blogImgW, blogImgH)
var scaled image.Image
if dw == srcB.Dx() && dh == srcB.Dy() {
scaled = img
} else {
scaled = scaleNearest(img, dw, dh)
}
// Compose centered on canvas
canvas := image.NewRGBA(image.Rect(0, 0, blogImgW, blogImgH))
draw.Draw(canvas, canvas.Bounds(), &image.Uniform{C: bg}, image.Point{}, draw.Src)
offX := (blogImgW - dw) / 2
offY := (blogImgH - dh) / 2
draw.Draw(canvas, image.Rect(offX, offY, offX+dw, offY+dh), scaled, scaled.Bounds().Min, draw.Over)
// Write PNG atomically
if err := os.MkdirAll(filepath.Dir(outPath), 0755); err != nil {
return err
}
tmp := outPath + ".tmp"
f, err := os.Create(tmp)
if err != nil {
return err
}
enc := png.Encoder{CompressionLevel: png.BestSpeed}
if err := enc.Encode(f, canvas); err != nil {
f.Close()
_ = os.Remove(tmp)
return fmt.Errorf("encode png: %w", err)
}
f.Close()
_ = os.Remove(outPath)
if err := os.Rename(tmp, outPath); err != nil {
return err
}
return nil
}
func staticPath() string {
@@ -391,12 +415,72 @@ func ytChannel() string {
// BlogItem represents a simple blog card item for the homepage
type BlogItem struct {
ID string `json:"id"`
Title string `json:"title"`
Link string `json:"link"`
Image string `json:"image"`
MTime time.Time `json:"mtime"`
Categories []string `json:"categories,omitempty"`
ID string `json:"id"`
Title string `json:"title"`
Slug string `json:"slug"`
Link string `json:"link"`
Image string `json:"image"`
MTime time.Time `json:"mtime"`
Categories []string `json:"categories,omitempty"`
}
// generateSlug creates a URL-friendly slug from a title
func generateSlug(title string) string {
slug := strings.ToLower(title)
// Replace Czech characters with their ASCII equivalents
replacements := map[string]string{
"á": "a", "ä": "a", "č": "c", "ď": "d", "é": "e", "ě": "e", "í": "i", "ľ": "l",
"ň": "n", "ó": "o", "ö": "o", "ô": "o", "ř": "r", "š": "s", "ť": "t", "ú": "u",
"ů": "u", "ý": "y", "ž": "z",
"Á": "a", "Ä": "a", "Č": "c", "Ď": "d", "É": "e", "Ě": "e", "Í": "i", "Ľ": "l",
"Ň": "n", "Ó": "o", "Ö": "o", "Ô": "o", "Ř": "r", "Š": "s", "Ť": "t", "Ú": "u",
"Ů": "u", "Ý": "y", "Ž": "z",
}
for czech, ascii := range replacements {
slug = strings.ReplaceAll(slug, czech, ascii)
}
// Remove any character that isn't alphanumeric, space, or hyphen
re := regexp.MustCompile(`[^a-z0-9\s-]`)
slug = re.ReplaceAllString(slug, "")
// Replace spaces and multiple hyphens with a single hyphen
re = regexp.MustCompile(`[\s-]+`)
slug = re.ReplaceAllString(slug, "-")
// Remove leading and trailing hyphens
slug = strings.Trim(slug, "-")
return slug
}
// ensureUniqueSlug ensures the slug is unique by appending a number if needed
func ensureUniqueSlug(siteRoot, baseSlug string) string {
blogDir := filepath.Join(siteRoot, "blog")
entries, err := os.ReadDir(blogDir)
if err != nil {
return baseSlug
}
existingSlugs := make(map[string]bool)
for _, e := range entries {
if !strings.HasSuffix(e.Name(), ".html") {
continue
}
// Extract slug from filename if it follows the new pattern
name := strings.TrimSuffix(e.Name(), ".html")
// Check if it's a slug-based filename (contains letters, not just numbers)
if regexp.MustCompile(`[a-z]`).MatchString(name) {
existingSlugs[name] = true
}
}
if !existingSlugs[baseSlug] {
return baseSlug
}
// Try baseSlug-2, baseSlug-3, etc.
for i := 2; i < 100; i++ {
testSlug := fmt.Sprintf("%s-%d", baseSlug, i)
if !existingSlugs[testSlug] {
return testSlug
}
}
// Fallback to timestamp
return fmt.Sprintf("%s-%d", baseSlug, time.Now().Unix())
}
func extractCategories(path string) []string {
@@ -415,15 +499,82 @@ func extractCategories(path string) []string {
return categories
}
// listLatestBlogs scans the blog and image folders under the provided site root and returns the latest N posts
func listLatestBlogs(siteRoot string, limit int) ([]BlogItem, error) {
blogDir := filepath.Join(siteRoot, "blog")
imgDir := filepath.Join(siteRoot, "img", "blog")
entries, err := os.ReadDir(blogDir)
// extractAnnotation extracts the annotation from blog HTML meta tags
func extractAnnotation(path string) string {
b, err := os.ReadFile(path)
if err != nil {
return nil, fmt.Errorf("readdir blog: %w", err)
return ""
}
re := regexp.MustCompile(`^(\d{4})\.html$`)
s := string(b)
// Try to find description in meta tag first
re := regexp.MustCompile(`(?is)<meta name="description" content="([^"]+)"`)
m := re.FindStringSubmatch(s)
if len(m) >= 2 {
return m[1]
}
return ""
}
// extractContentMode extracts the content mode from blog HTML meta tags
func extractContentMode(path string) string {
b, err := os.ReadFile(path)
if err != nil {
return ""
}
s := string(b)
// Try to find content_mode in meta tag first
re := regexp.MustCompile(`(?is)<meta name="content_mode" content="([^"]+)"`)
m := re.FindStringSubmatch(s)
if len(m) >= 2 {
return m[1]
}
// Default to visual if not found
return "visual"
}
// extractSlug extracts the slug from blog HTML meta tags or generates from filename
func extractSlug(path, filename string) string {
b, err := os.ReadFile(path)
if err != nil {
return ""
}
s := string(b)
// Try to find slug in meta tag first
re := regexp.MustCompile(`(?is)<meta name="slug" content="([^"]+)"`)
m := re.FindStringSubmatch(s)
if len(m) >= 2 {
return m[1]
}
// Fallback: generate slug from title
title := extractTitle(path)
if title != "" {
return generateSlug(title)
}
// Final fallback: use filename without extension
return strings.TrimSuffix(filename, ".html")
}
func listLatestBlogs(siteRoot string, limit int) ([]BlogItem, error) {
// REMOTE SERVER CONFIGURATION - UPDATE THIS PATH
remoteBlogDir := "/var/www/bizoni/blog" // Path to blogs on remote server
// For local development, you can override with environment variable
if envPath := os.Getenv("REMOTE_BLOG_DIR"); envPath != "" {
remoteBlogDir = envPath
}
// If remote directory doesn't exist locally, try to sync or return error
if _, err := os.Stat(remoteBlogDir); os.IsNotExist(err) {
return nil, fmt.Errorf("remote blog directory not found: %s. Set REMOTE_BLOG_DIR environment variable or ensure remote directory is mounted", remoteBlogDir)
}
imgDir := filepath.Join(filepath.Dir(remoteBlogDir), "img", "blog")
entries, err := os.ReadDir(remoteBlogDir)
if err != nil {
return nil, fmt.Errorf("readdir remote blog: %w", err)
}
// Match both numeric (0001.html) and slug-based filenames
re := regexp.MustCompile(`^(\d{4}|[a-z0-9-]+)\.html$`)
var items []BlogItem
for _, e := range entries {
name := e.Name()
@@ -432,12 +583,13 @@ func listLatestBlogs(siteRoot string, limit int) ([]BlogItem, error) {
}
id := strings.TrimSuffix(name, ".html")
// Title and categories extraction from blog HTML
blogPath := filepath.Join(blogDir, name)
blogPath := filepath.Join(remoteBlogDir, name)
title := extractTitle(blogPath)
slug := extractSlug(blogPath, name)
cats := extractCategories(blogPath)
// Determine mod time - prefer image modtime if exists, else html
mtime := time.Time{}
htmlInfo, err1 := os.Stat(filepath.Join(blogDir, name))
htmlInfo, err1 := os.Stat(filepath.Join(remoteBlogDir, name))
if err1 == nil {
mtime = htmlInfo.ModTime()
}
@@ -447,13 +599,21 @@ func listLatestBlogs(siteRoot string, limit int) ([]BlogItem, error) {
mtime = imgInfo.ModTime()
}
}
// Use slug-based link if slug exists and is not just numeric, otherwise use numeric
var link string
if slug != "" && regexp.MustCompile(`[a-z]`).MatchString(slug) {
link = "/blog/" + slug
} else {
link = "/blog/" + id + ".html"
}
items = append(items, BlogItem{
ID: id,
Title: title,
Link: "/blog/" + id + ".html",
Image: "/img/blog/" + id + ".png",
MTime: mtime,
Categories: cats,
ID: id,
Title: title,
Slug: slug,
Link: link,
Image: "/img/blog/" + id + ".png",
MTime: mtime,
Categories: cats,
})
}
sort.Slice(items, func(i, j int) bool {
@@ -758,12 +918,15 @@ func main() {
w.WriteHeader(http.StatusMethodNotAllowed)
return
}
// Expect multipart form with: title, content (HTML), image (png), categories (comma-separated)
// Expect multipart form with: title, slug, annotation, content_mode, content (HTML), image (png), categories (comma-separated)
if err := r.ParseMultipartForm(20 << 20); err != nil { // 20MB
http.Error(w, "invalid form", http.StatusBadRequest)
return
}
title := strings.TrimSpace(r.FormValue("title"))
slugInput := strings.TrimSpace(r.FormValue("slug"))
annotation := strings.TrimSpace(r.FormValue("annotation"))
contentMode := strings.TrimSpace(r.FormValue("content_mode"))
htmlContent := strings.TrimSpace(r.FormValue("content"))
catsRaw := strings.TrimSpace(r.FormValue("categories"))
var cats []string
@@ -779,6 +942,10 @@ func main() {
http.Error(w, "missing title or content", http.StatusBadRequest)
return
}
// Default content mode to visual if not specified
if contentMode == "" {
contentMode = "visual"
}
f, fh, err := r.FormFile("image")
if err != nil {
http.Error(w, "missing image", http.StatusBadRequest)
@@ -799,6 +966,18 @@ func main() {
return
}
idStr := fmt.Sprintf("%04d", nid)
// Determine slug
var finalSlug string
if slugInput != "" {
// Use provided slug (already validated by frontend)
finalSlug = slugInput
} else {
// Generate from title
baseSlug := generateSlug(title)
finalSlug = ensureUniqueSlug(site, baseSlug)
}
// Write image (normalize to 1600x969 with letterboxing)
imgDir := filepath.Join(site, "img", "blog")
if err := os.MkdirAll(imgDir, 0755); err != nil {
@@ -836,29 +1015,102 @@ func main() {
for _, c := range cats {
meta += "<meta name=\"category\" content=\"" + htmlEscape(c) + "\">\n"
}
reHead := regexp.MustCompile(`(?is)</head>`)
reHead := regexp.MustCompile(`(?is)</head>`)
s = reHead.ReplaceAllString(s, meta+"</head>")
}
// Write new blog html
// Inject slug as <meta name="slug" content="..."> before </head>
slugMeta := "<meta name=\"slug\" content=\"" + htmlEscape(finalSlug) + "\">\n"
reHeadSlug := regexp.MustCompile(`(?is)</head>`)
s = reHeadSlug.ReplaceAllString(s, slugMeta+"</head>")
// Inject annotation as <meta name="description" content="..."> before </head>
if annotation != "" {
annotationMeta := "<meta name=\"description\" content=\"" + htmlEscape(annotation) + "\">\n"
reHeadAnnotation := regexp.MustCompile(`(?is)</head>`)
s = reHeadAnnotation.ReplaceAllString(s, annotationMeta+"</head>")
}
// Inject content mode as <meta name="content_mode" content="..."> before </head>
contentModeMeta := "<meta name=\"content_mode\" content=\"" + htmlEscape(contentMode) + "\">\n"
reHeadContentMode := regexp.MustCompile(`(?is)</head>`)
s = reHeadContentMode.ReplaceAllString(s, contentModeMeta+"</head>")
// Write new blog html with both numeric and slug filenames
blogDir := filepath.Join(site, "blog")
if err := os.MkdirAll(blogDir, 0755); err != nil {
http.Error(w, "storage error: blog dir", http.StatusInternalServerError)
return
}
// Write numeric file (for backward compatibility)
htmlPath := filepath.Join(blogDir, idStr+".html")
if err := os.WriteFile(htmlPath, []byte(s), 0644); err != nil {
http.Error(w, "cannot write blog (is STATIC_PATH read-only?)", http.StatusInternalServerError)
return
}
// Write slug file (new format)
slugPath := filepath.Join(blogDir, finalSlug+".html")
if err := os.WriteFile(slugPath, []byte(s), 0644); err != nil {
http.Error(w, "cannot write slug blog (is STATIC_PATH read-only?)", http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json; charset=utf-8")
_ = json.NewEncoder(w).Encode(map[string]any{
"id": idStr,
"link": "/blog/" + idStr + ".html",
"slug": finalSlug,
"link": "/blog/" + finalSlug,
"image": "/img/blog/" + idStr + ".png",
"message": "created",
})
})
// Blog slug resolution: convert slug to numeric ID
mux.HandleFunc("/api/blog/resolve", func(w http.ResponseWriter, r *http.Request) {
okCORS(w)
if r.Method != http.MethodGet {
w.WriteHeader(http.StatusMethodNotAllowed)
return
}
slug := strings.TrimSpace(r.URL.Query().Get("slug"))
if slug == "" {
http.Error(w, "missing slug", http.StatusBadRequest)
return
}
// Validate slug format
if !regexp.MustCompile(`^[a-z0-9-]+$`).MatchString(slug) {
http.Error(w, "invalid slug format", http.StatusBadRequest)
return
}
site := staticPath()
blogDir := filepath.Join(site, "blog")
// First try to find slug-based file
slugPath := filepath.Join(blogDir, slug+".html")
if b, err := os.ReadFile(slugPath); err == nil {
s := string(b)
// Try to find the corresponding numeric file
entries, _ := os.ReadDir(blogDir)
for _, e := range entries {
name := e.Name()
if !regexp.MustCompile(`^\d{4}\.html$`).MatchString(name) {
continue
}
numericPath := filepath.Join(blogDir, name)
numericContent, _ := os.ReadFile(numericPath)
if string(numericContent) == s {
// Found matching numeric file
numericID := strings.TrimSuffix(name, ".html")
w.Header().Set("Content-Type", "application/json; charset=utf-8")
_ = json.NewEncoder(w).Encode(map[string]any{"id": numericID, "slug": slug})
return
}
}
}
// If not found, return 404
http.Error(w, "slug not found", http.StatusNotFound)
})
// Blog fetch (admin): returns title, content html, image for editing
mux.HandleFunc("/api/blog/get", func(w http.ResponseWriter, r *http.Request) {
okCORS(w)
@@ -901,9 +1153,12 @@ func main() {
content = strings.TrimSpace(mc[1])
}
cats := extractCategories(path)
slug := extractSlug(path, id+".html")
annotation := extractAnnotation(path)
contentMode := extractContentMode(path)
img := "/img/blog/" + id + ".png"
w.Header().Set("Content-Type", "application/json; charset=utf-8")
_ = json.NewEncoder(w).Encode(map[string]any{"id": id, "title": title, "content_html": content, "image": img, "categories": cats})
_ = json.NewEncoder(w).Encode(map[string]any{"id": id, "title": title, "slug": slug, "annotation": annotation, "content_mode": contentMode, "content_html": content, "image": img, "categories": cats})
})
// Blog edit (admin): update title/content and optionally replace image
@@ -921,7 +1176,7 @@ func main() {
w.WriteHeader(http.StatusMethodNotAllowed)
return
}
// Expect multipart form with: title, content (HTML), image (png), categories (comma-separated)
// Expect multipart form with: title, slug, annotation, content_mode, content (HTML), image (png), categories (comma-separated)
if err := r.ParseMultipartForm(25 << 20); err != nil {
http.Error(w, "invalid form", http.StatusBadRequest)
return
@@ -933,6 +1188,9 @@ func main() {
return
}
title := strings.TrimSpace(r.FormValue("title"))
slugInput := strings.TrimSpace(r.FormValue("slug"))
annotation := strings.TrimSpace(r.FormValue("annotation"))
contentMode := strings.TrimSpace(r.FormValue("content_mode"))
htmlContent := strings.TrimSpace(r.FormValue("content"))
catsRaw := strings.TrimSpace(r.FormValue("categories"))
var cats []string
@@ -948,6 +1206,10 @@ func main() {
http.Error(w, "missing title or content", http.StatusBadRequest)
return
}
// Default content mode to visual if not specified
if contentMode == "" {
contentMode = "visual"
}
site := staticPath()
if f, fh, err := r.FormFile("image"); err == nil {
defer f.Close()
@@ -986,9 +1248,29 @@ func main() {
for _, c := range cats {
meta += "<meta name=\"category\" content=\"" + htmlEscape(c) + "\">\n"
}
reHead := regexp.MustCompile(`(?is)</head>`)
reHead := regexp.MustCompile(`(?is)</head>`)
s = reHead.ReplaceAllString(s, meta+"</head>")
}
// Update or add slug meta tag
reSlug := regexp.MustCompile(`(?is)<meta name="slug" content="[^"]*"\s*/?>\s*`)
s = reSlug.ReplaceAllString(s, "")
slugMeta := "<meta name=\"slug\" content=\"" + htmlEscape(slugInput) + "\">\n"
reHeadSlug := regexp.MustCompile(`(?is)</head>`)
s = reHeadSlug.ReplaceAllString(s, slugMeta+"</head>")
// Update or add annotation meta tag
reAnnotation := regexp.MustCompile(`(?is)<meta name="description" content="[^"]*"\s*/?>\s*`)
s = reAnnotation.ReplaceAllString(s, "")
if annotation != "" {
annotationMeta := "<meta name=\"description\" content=\"" + htmlEscape(annotation) + "\">\n"
reHeadAnnotation := regexp.MustCompile(`(?is)</head>`)
s = reHeadAnnotation.ReplaceAllString(s, annotationMeta+"</head>")
}
// Update or add content mode meta tag
reContentMode := regexp.MustCompile(`(?is)<meta name="content_mode" content="[^"]*"\s*/?>\s*`)
s = reContentMode.ReplaceAllString(s, "")
contentModeMeta := "<meta name=\"content_mode\" content=\"" + htmlEscape(contentMode) + "\">\n"
reHeadContentMode := regexp.MustCompile(`(?is)</head>`)
s = reHeadContentMode.ReplaceAllString(s, contentModeMeta+"</head>")
if err := os.WriteFile(hPath, []byte(s), 0644); err != nil {
http.Error(w, "cannot write", http.StatusInternalServerError)
return
@@ -1019,44 +1301,84 @@ func main() {
w.WriteHeader(http.StatusNoContent)
})
// Static file server for the frontend
sp := staticPath()
log.Printf("serving static from: %s", sp)
fs := http.FileServer(http.Dir(sp))
// Serve common asset prefixes explicitly
mux.Handle("/img/", fs)
mux.Handle("/css/", fs)
mux.Handle("/js/", fs)
// Protect /admin/ with Basic Auth
mux.Handle("/admin/", basicAuth(http.StripPrefix("/admin/", http.FileServer(http.Dir(filepath.Join(staticPath(), "admin"))))))
mux.Handle("/blog/", fs)
mux.Handle("/zapasy/", fs)
// Fallback: serve index.html at root, otherwise delegate to static file server
mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
if r.URL.Path == "/" || r.URL.Path == "/index.html" {
http.ServeFile(w, r, filepath.Join(sp, "index.html"))
return
}
fs.ServeHTTP(w, r)
})
// Static file server for the frontend
sp := staticPath()
log.Printf("serving static from: %s", sp)
fs := http.FileServer(http.Dir(sp))
// Serve common asset prefixes explicitly
mux.Handle("/img/", fs)
mux.Handle("/css/", fs)
mux.Handle("/js/", fs)
// Protect /admin/ with Basic Auth
mux.Handle("/admin/", basicAuth(http.StripPrefix("/admin/", http.FileServer(http.Dir(filepath.Join(staticPath(), "admin"))))))
port := os.Getenv("PORT")
if port == "" { port = "8080" }
srv := &http.Server{
Addr: ":" + port,
Handler: mux,
}
go func() {
log.Printf("server listening on :%s", port)
if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
log.Fatalf("server error: %v", err)
}
}()
// Custom slug-based blog routing
mux.HandleFunc("/blog/", func(w http.ResponseWriter, r *http.Request) {
// Extract the slug/ID from the path
path := strings.TrimPrefix(r.URL.Path, "/blog/")
if path == "" || path == "/" {
// Serve the main blog listing page
http.ServeFile(w, r, filepath.Join(sp, "blog.html"))
return
}
<-ctx.Done()
ctxShut, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
_ = srv.Shutdown(ctxShut)
// Remove .html extension if present
if strings.HasSuffix(path, ".html") {
path = strings.TrimSuffix(path, ".html")
}
// Check if it's a numeric ID (legacy format)
if regexp.MustCompile(`^\d{4}$`).MatchString(path) {
// Serve numeric file directly
numericPath := filepath.Join(sp, "blog", path+".html")
if _, err := os.Stat(numericPath); err == nil {
http.ServeFile(w, r, numericPath)
return
}
}
// Check if it's a slug (new format)
if regexp.MustCompile(`^[a-z0-9-]+$`).MatchString(path) {
slugPath := filepath.Join(sp, "blog", path+".html")
if _, err := os.Stat(slugPath); err == nil {
http.ServeFile(w, r, slugPath)
return
}
}
// If not found, serve 404
http.NotFound(w, r)
})
mux.Handle("/zapasy/", fs)
// Fallback: serve index.html at root, otherwise delegate to static file server
mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
if r.URL.Path == "/" || r.URL.Path == "/index.html" {
http.ServeFile(w, r, filepath.Join(sp, "index.html"))
return
}
fs.ServeHTTP(w, r)
})
port := os.Getenv("PORT")
if port == "" {
port = "8080"
}
srv := &http.Server{
Addr: ":" + port,
Handler: mux,
}
go func() {
log.Printf("server listening on :%s", port)
if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
log.Fatalf("server error: %v", err)
}
}()
<-ctx.Done()
ctxShut, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
_ = srv.Shutdown(ctxShut)
}
func okCORS(w http.ResponseWriter) {