69 lines
1.6 KiB
Go
69 lines
1.6 KiB
Go
package handlers
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"net/http"
|
|
|
|
"github.com/PuerkitoBio/goquery"
|
|
"github.com/gorilla/mux"
|
|
"github.com/rramiachraf/dumb/data"
|
|
"github.com/rramiachraf/dumb/utils"
|
|
"github.com/rramiachraf/dumb/views"
|
|
)
|
|
|
|
func article(l *utils.Logger) http.HandlerFunc {
|
|
return func(w http.ResponseWriter, r *http.Request) {
|
|
articleSlug := mux.Vars(r)["article"]
|
|
|
|
if a, err := getCache[data.Article](articleSlug); err == nil {
|
|
views.ArticlePage(a).Render(context.Background(), w)
|
|
return
|
|
}
|
|
|
|
url := fmt.Sprintf("https://genius.com/a/%s", articleSlug)
|
|
|
|
resp, err := utils.SendRequest(url)
|
|
if err != nil {
|
|
l.Error(err.Error())
|
|
w.WriteHeader(http.StatusInternalServerError)
|
|
views.ErrorPage(500, "cannot reach Genius servers").Render(context.Background(), w)
|
|
return
|
|
}
|
|
|
|
defer resp.Body.Close()
|
|
|
|
if resp.StatusCode == http.StatusNotFound {
|
|
w.WriteHeader(http.StatusNotFound)
|
|
views.ErrorPage(404, "page not found").Render(context.Background(), w)
|
|
return
|
|
}
|
|
|
|
doc, err := goquery.NewDocumentFromReader(resp.Body)
|
|
if err != nil {
|
|
l.Error(err.Error())
|
|
w.WriteHeader(http.StatusInternalServerError)
|
|
views.ErrorPage(500, "something went wrong").Render(context.Background(), w)
|
|
return
|
|
}
|
|
|
|
cf := doc.Find(".cloudflare_content").Length()
|
|
if cf > 0 {
|
|
l.Error("cloudflare got in the way")
|
|
views.ErrorPage(500, "cloudflare is detected").Render(context.Background(), w)
|
|
return
|
|
}
|
|
|
|
var a data.Article
|
|
if err = a.Parse(doc); err != nil {
|
|
l.Error(err.Error())
|
|
}
|
|
|
|
views.ArticlePage(a).Render(context.Background(), w)
|
|
|
|
if err = setCache(articleSlug, a); err != nil {
|
|
l.Error(err.Error())
|
|
}
|
|
}
|
|
}
|