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|
package backend
import (
"fmt"
"html/template"
"math/rand"
"net/http"
"regexp"
"strings"
)
var (
regexIsHttp = regexp.MustCompile(`^https?://`)
)
type dataUsable interface {
SetData(*data)
}
type data struct {
title string
Article bool
Domain string
URL string
Image string
Description string
Name string
Links []Link
Logo *Logo
Quote string
}
func (d *data) SetData(data *data) {
*d = *data
}
func (d *data) handleGeneric(w http.ResponseWriter, r *http.Request, name string, custom dataUsable) {
cfg := r.Context().Value(configKey).(*Config)
if d.Domain == "" {
d.Domain = cfg.Domain
}
if d.Name == "" {
d.Name = cfg.Name
}
if d.Description == "" {
d.Description = cfg.Description
}
if d.Links == nil {
d.Links = cfg.Links
}
if d.Logo == nil {
d.Logo = &cfg.Logo
}
if d.Quote == "" {
if cfg.Quotes == nil {
d.Quote = "Une citation"
} else {
d.Quote = cfg.Quotes[rand.Intn(len(cfg.Quotes))]
}
}
if d.Image == "" {
d.Image = cfg.DefaultImage
}
if d.URL == "" {
if !strings.HasPrefix(r.URL.Path, "/") {
r.URL.Path = "/" + r.URL.Path
}
d.URL = r.URL.Path
}
t, err := template.New("").Funcs(template.FuncMap{
"static": getStatic,
"fullStatic": func(path string) string {
if regexIsHttp.MatchString(path) {
return path
}
return fmt.Sprintf("https://%s/static/%s", cfg.Domain, path)
},
"assets": func(path string) string {
if regexIsHttp.MatchString(path) {
return path
}
return fmt.Sprintf("/assets/%s", path)
},
"next": func(i int) int { return i + 1 },
"before": func(i int) int { return i - 1 },
}).ParseFS(templates, "templates/components.html", fmt.Sprintf("templates/%s.html", name), "templates/base.html")
if err != nil {
panic(err)
}
exec := "base.html"
if r.Context().Value(isUpdateKey).(bool) {
exec = "body"
w.Header().Set("Updated-Title", d.Title())
w.Header().Set("Updated-Quote", d.Quote)
}
if custom == nil {
err = t.ExecuteTemplate(w, exec, d)
} else {
custom.SetData(d)
err = t.ExecuteTemplate(w, exec, custom)
}
if err != nil {
panic(err)
}
}
func (d *data) Title() string {
title := d.Name
if d.Article {
title += " - log entry"
}
if len(d.title) != 0 {
title += " - " + d.title
}
return title
}
func (d *data) PubDate() string {
return ""
}
func getStatic(path string) string {
if regexIsHttp.MatchString(path) {
return path
}
return fmt.Sprintf("/static/%s", path)
}
|
