chore: rm package utils

tools/tmplfunc.go

@@ -0,0 +1,65 @@
+// Package tools provides ...
+package tools
+
+import (
+	"encoding/base64"
+	htmpl "html/template"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"strings"
+	"text/template"
+	"time"
+)
+
+var TplFuncMap = make(template.FuncMap)
+
+func init() {
+	TplFuncMap["dateformat"] = DateFormat
+	TplFuncMap["str2html"] = Str2html
+	TplFuncMap["join"] = Join
+	TplFuncMap["isnotzero"] = IsNotZero
+	TplFuncMap["getavatar"] = GetAvatar
+}
+
+func Str2html(raw string) htmpl.HTML {
+	return htmpl.HTML(raw)
+}
+
+// DateFormat takes a time and a layout string and returns a string with the formatted date. Used by the template parser as "dateformat"
+func DateFormat(t time.Time, layout string) string {
+	return t.Format(layout)
+}
+
+func Join(a []string, sep string) string {
+	return strings.Join(a, sep)
+}
+
+func IsNotZero(t time.Time) bool {
+	return !t.IsZero()
+}
+
+// cache avatar image
+// url: https://<static_domain>/static/img/avatar.png
+var avatar string
+
+func GetAvatar(domain string) string {
+	if avatar == "" {
+		resp, err := http.Get("https://" + domain + "/static/img/avatar.png")
+		if err != nil {
+			log.Println(err)
+			return ""
+		}
+		defer resp.Body.Close()
+
+		data, err := ioutil.ReadAll(resp.Body)
+		if err != nil {
+			log.Println(err)
+			return ""
+		}
+
+		avatar = "data:" + resp.Header.Get("content-type") + ";base64," + base64.StdEncoding.EncodeToString(data)
+	}
+
+	return avatar
+}