github.com/qiuhoude/go-web@v0.0.0-20220223060959-ab545e78f20d/blogweb_gin/utils/utils.go (about)

     1  package utils
     2  
     3  import (
     4  	"bytes"
     5  	"crypto/md5"
     6  	"fmt"
     7  	"github.com/PuerkitoBio/goquery"
     8  	"github.com/russross/blackfriday"
     9  	"github.com/sourcegraph/syntaxhighlight"
    10  	"html/template"
    11  	"time"
    12  )
    13  
    14  //传入的数据不一样，那么MD5后的32位长度的数据肯定会不一样
    15  func MD5(str string) string {
    16  	md5str := fmt.Sprintf("%x", md5.Sum([]byte(str)))
    17  	return md5str
    18  }
    19  
    20  //将传入的时间戳转为时间
    21  func SwitchTimeStampToData(timeStamp int64) string {
    22  	t := time.Unix(timeStamp, 0)
    23  	return t.Format("2006-01-02 15:04:05")
    24  }
    25  
    26  // md 转html
    27  func SwitchMarkdownToHtml(content string) template.HTML {
    28  	markdown := blackfriday.MarkdownCommon([]byte(content))
    29  
    30  	//获取到html文档
    31  	doc, _ := goquery.NewDocumentFromReader(bytes.NewReader(markdown))
    32  	/**
    33  	对document进程查询，选择器和css的语法一样
    34  	第一个参数：i是查询到的第几个元素
    35  	第二个参数：selection就是查询到的元素
    36  	*/
    37  	doc.Find("code").Each(func(i int, selection *goquery.Selection) {
    38  		light, _ := syntaxhighlight.AsHTML([]byte(selection.Text()))
    39  		selection.SetHtml(string(light))
    40  		//logs.Info.Println(selection.Html())
    41  		//logs.Info.Println("light:", string(light))
    42  		//fmt.Println("\n\n\n")
    43  	})
    44  
    45  	htmlString, _ := doc.Html()
    46  	return template.HTML(htmlString)
    47  }