2016-04-11 01:17:01 -05:00
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package markdown
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import (
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"bytes"
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"io/ioutil"
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"text/template"
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"github.com/mholt/caddy/middleware"
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"github.com/mholt/caddy/middleware/markdown/metadata"
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)
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// Data represents a markdown document.
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type Data struct {
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middleware.Context
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Doc map[string]string
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DocFlags map[string]bool
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Styles []string
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Scripts []string
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Files []FileInfo
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}
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// Include "overrides" the embedded middleware.Context's Include()
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// method so that included files have access to d's fields.
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// Note: using {{template 'template-name' .}} instead might be better.
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func (d Data) Include(filename string) (string, error) {
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return middleware.ContextInclude(filename, d, d.Root)
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}
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// execTemplate executes a template given a requestPath, template, and metadata
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func execTemplate(c *Config, mdata metadata.Metadata, files []FileInfo, ctx middleware.Context) ([]byte, error) {
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mdData := Data{
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Context: ctx,
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Doc: mdata.Variables,
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DocFlags: mdata.Flags,
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Styles: c.Styles,
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Scripts: c.Scripts,
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Files: files,
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}
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b := new(bytes.Buffer)
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if err := c.Template.ExecuteTemplate(b, mdata.Template, mdData); err != nil {
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return nil, err
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}
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return b.Bytes(), nil
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}
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func SetTemplate(t *template.Template, name, filename string) error {
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// Read template
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buf, err := ioutil.ReadFile(filename)
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if err != nil {
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return err
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}
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// Update if exists
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if tt := t.Lookup(name); tt != nil {
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_, err = tt.Parse(string(buf))
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return err
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}
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// Allocate new name if not
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_, err = t.New(name).Parse(string(buf))
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return err
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}
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func GetDefaultTemplate() *template.Template {
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return template.Must(template.New("").Parse(defaultTemplate))
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}
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const (
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defaultTemplate = `<!DOCTYPE html>
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<html>
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<head>
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<title>{{.Doc.title}}</title>
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<meta charset="utf-8">
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{{- range .Styles}}
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<link rel="stylesheet" href="{{.}}">
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{{- end}}
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{{- range .Scripts}}
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<script src="{{.}}"></script>
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{{- end}}
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</head>
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<body>
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{{.Doc.body}}
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</body>
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</html>`
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)
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