You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
65 lines
1.7 KiB
65 lines
1.7 KiB
package main |
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import ( |
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"encoding/base64" |
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"errors" |
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"html/template" |
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"io/ioutil" |
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"net/http" |
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"regexp" |
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"strings" |
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"github.com/golang-commonmark/markdown" |
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"github.com/labstack/echo" |
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) |
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var ( |
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statuses = map[int]string{ |
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400: "Bad request", |
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401: "Unauthorized", |
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403: "Forbidden", |
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404: "Not found", |
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412: "Precondition failed", |
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503: "Service unavailable", |
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} |
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rexpNewLine = regexp.MustCompile("[\n\r]") |
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rexpNonAlphaNum = regexp.MustCompile("[`~!@#$%^&*_|+=?;:'\",.<>{}\\/]") |
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rexpNoScriptIframe = regexp.MustCompile("(<.*?script.*?>.*?<.*?/.*?script.*?>|<.*?iframe.*?>|</.*?iframe.*?>)") |
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errorUnathorised = errors.New("password is wrong") |
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errorBadRequest = errors.New("password is empty") |
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errorNameExists = errors.New("name exists") |
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) |
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func (n *Note) prepare() { |
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fstLine := rexpNewLine.Split(n.Text, -1)[0] |
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maxLength := 25 |
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if len(fstLine) < 25 { |
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maxLength = len(fstLine) |
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} |
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n.Text = rexpNoScriptIframe.ReplaceAllString(n.Text, "") |
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n.Title = strings.TrimSpace(rexpNonAlphaNum.ReplaceAllString(fstLine[:maxLength], "")) |
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n.Content = mdTmplHTML([]byte(n.Text)) |
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if n.Fraud() { |
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n.Encoded = base64.StdEncoding.EncodeToString([]byte(n.Content)) |
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} |
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} |
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var mdRenderer = markdown.New(markdown.HTML(true)) |
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func mdTmplHTML(content []byte) template.HTML { |
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return template.HTML(mdRenderer.RenderToString(content)) |
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} |
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func md2html(c echo.Context, name string) (*Note, int) { |
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path := "assets/markdown/" + name + ".md" |
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mdContent, err := ioutil.ReadFile(path) |
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if err != nil { |
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c.Logger().Errorf("couldn't open markdown page %s: %v", path, err) |
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code := http.StatusServiceUnavailable |
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return nil, code |
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} |
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c.Logger().Debugf("rendering markdown page %s", name) |
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return &Note{Title: name, Content: mdTmplHTML(mdContent)}, http.StatusOK |
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}
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