init

utils.go

@@ -0,0 +1,47 @@
+package main
+
+import (
+	"crypto/sha1"
+	"fmt"
+	"net/http"
+	"strings"
+
+	"github.com/PuerkitoBio/goquery"
+)
+
+func getLimeTorrentsDownloadUrl(url string) (string, error) {
+	resp, err := http.Get(url)
+	if err != nil {
+		return "", fmt.Errorf("couldn't fetch html: %v", err)
+	}
+	defer resp.Body.Close()
+
+	doc, err := goquery.NewDocumentFromReader(resp.Body)
+	if err != nil {
+		return "", fmt.Errorf("couldn't create document from response: %v", err)
+	}
+
+	href := ""
+	doc.Find("a.csprite_dltorrent").Each(func(i int, s *goquery.Selection) {
+		h, hasHref := s.Attr("href")
+		if !hasHref {
+			return
+		}
+
+		if strings.HasPrefix(h, "https://") {
+			href = h
+		}
+	})
+
+	if href == "" {
+		return "", fmt.Errorf("couldn't find download url")
+	}
+
+	return href, nil
+}
+
+func toSha1(b []byte) string {
+	hash := sha1.New()
+	hash.Write(b)
+	return fmt.Sprintf("%x", hash.Sum(nil))
+}