blog/core/pages.go

57 lines
1.3 KiB
Go

package core
import (
"net/http"
"os"
"path/filepath"
"strings"
)
// PageHandler is the catch-all route handler, for serving static web pages.
func (b *Blog) PageHandler(w http.ResponseWriter, r *http.Request) {
path := r.URL.Path
// Remove trailing slashes by redirecting them away.
if len(path) > 1 && path[len(path)-1] == '/' {
Redirect(w, strings.TrimRight(path, "/"))
return
}
// Search for a file that matches their URL.
log.Debug("Resolving filepath for URI: %s", path)
for _, root := range []string{b.DocumentRoot, b.UserRoot} {
relPath := filepath.Join(root, path)
absPath, err := filepath.Abs(relPath)
if err != nil {
log.Error("%v", err)
}
log.Debug("Expected filepath: %s", absPath)
// Found an exact hit?
if stat, err := os.Stat(absPath); !os.IsNotExist(err) && !stat.IsDir() {
log.Debug("Exact filepath found: %s", absPath)
http.ServeFile(w, r, absPath)
return
}
// Try some supported suffixes.
suffixes := []string{
".html",
"/index.html",
".md",
"/index.md",
}
for _, suffix := range suffixes {
if stat, err := os.Stat(absPath + suffix); !os.IsNotExist(err) && !stat.IsDir() {
log.Debug("Filepath found via suffix %s: %s", suffix, absPath+suffix)
http.ServeFile(w, r, absPath+suffix)
return
}
}
}
// No file, must be a 404.
http.NotFound(w, r)
}