doujian1954 2017-04-17 20:08
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在Go中将未转义的HTML解析为HTML模板

I have created this really simple program for testing.

package main

import (
    "fmt"
    "github.com/microcosm-cc/bluemonday"
    "github.com/pressly/chi"
    "github.com/russross/blackfriday"
    "github.com/unrolled/render"
    "net/http"
)

func main() {
    r := chi.NewRouter()
    r.Get("/", homepageGET)
    http.ListenAndServe(":8080", r)
}

func homepageGET(w http.ResponseWriter, r *http.Request) {
    Renderer := render.New(render.Options{
        Directory:    "frontend",
        Extensions:   []string{".tmpl", ".html"},
        UnEscapeHTML: true,
    })
    unsafe := blackfriday.MarkdownCommon([]byte("**bolded text**"))
    markdownContent := bluemonday.UGCPolicy().SanitizeBytes(unsafe)
    fmt.Print(string(markdownContent))
    Renderer.HTML(w, http.StatusOK, "index", map[string]interface{}{
        "content": fmt.Sprintf(string(markdownContent))})
}

And then I have a HTML file containing nothing besides:

<body>
  {{ .content }}
</body>

The fmt.Print command prints "<p><strong>bolded text</strong></p>", whereas it's inserted into the HTML page as: "&lt;p&gt;&lt;strong&gt;bolded text&lt;/strong&gt;&lt;/p&gt;".

I believe it is related to escaped HTML, but for the unrolled/render package I configure it as unescaped.. I'd greatly appreciate any help getting the test program working (preferably together with unrolled/render).

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1条回答 默认 最新

  • dongyan6235 2017-04-17 20:24
    关注

    In Go you can convert known safe html strings to the template.HTML type, and since unrolled/render uses Go's html/template to render html you should be able to use just that.

    Renderer.HTML(w, http.StatusOK, "index", map[string]interface{}{
            "content": template.HTML(markdownContent),
    })
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

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