mirror of
https://github.com/caddyserver/caddy.git
synced 2024-11-26 02:09:47 +08:00
e5ef285e59
* Generate meta elements from useful front matters. Limited to the default template and specific elements. * Rerun gofmt * Add "keywords" and remove "language" to/from the list of meta tags. * Add a simple positive list test for the meta tag generation. * Move the meta tag list to a var at the begin of the file. Seperate the Meta tags from the other front matters: - Don't override user settings with name `meta` - Cleaner Code. * Remove the uneccessary `[:]` in the []Bytes to String casting. @mholt was right ;) * One minor refinement. Combining two statements.
93 lines
2.2 KiB
Go
93 lines
2.2 KiB
Go
package markdown
|
|
|
|
import (
|
|
"io"
|
|
"io/ioutil"
|
|
"os"
|
|
|
|
"github.com/mholt/caddy/caddyhttp/httpserver"
|
|
"github.com/mholt/caddy/caddyhttp/markdown/metadata"
|
|
"github.com/mholt/caddy/caddyhttp/markdown/summary"
|
|
"github.com/russross/blackfriday"
|
|
)
|
|
|
|
// FileInfo represents a file in a particular server context. It wraps the os.FileInfo struct.
|
|
type FileInfo struct {
|
|
os.FileInfo
|
|
ctx httpserver.Context
|
|
}
|
|
|
|
var recognizedMetaTags = []string{
|
|
"author",
|
|
"copyright",
|
|
"description",
|
|
"subject",
|
|
}
|
|
|
|
// Summarize returns an abbreviated string representation of the markdown stored in this file.
|
|
// wordcount is the number of words returned in the summary.
|
|
func (f FileInfo) Summarize(wordcount int) (string, error) {
|
|
fp, err := f.ctx.Root.Open(f.Name())
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
defer fp.Close()
|
|
|
|
buf, err := ioutil.ReadAll(fp)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
return string(summary.Markdown(buf, wordcount)), nil
|
|
}
|
|
|
|
// Markdown processes the contents of a page in b. It parses the metadata
|
|
// (if any) and uses the template (if found).
|
|
func (c *Config) Markdown(title string, r io.Reader, dirents []os.FileInfo, ctx httpserver.Context) ([]byte, error) {
|
|
body, err := ioutil.ReadAll(r)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
parser := metadata.GetParser(body)
|
|
markdown := parser.Markdown()
|
|
mdata := parser.Metadata()
|
|
|
|
// process markdown
|
|
extns := 0
|
|
extns |= blackfriday.EXTENSION_TABLES
|
|
extns |= blackfriday.EXTENSION_FENCED_CODE
|
|
extns |= blackfriday.EXTENSION_STRIKETHROUGH
|
|
extns |= blackfriday.EXTENSION_DEFINITION_LISTS
|
|
html := blackfriday.Markdown(markdown, c.Renderer, extns)
|
|
|
|
// set it as body for template
|
|
mdata.Variables["body"] = string(html)
|
|
|
|
// fixup title
|
|
mdata.Variables["title"] = mdata.Title
|
|
if mdata.Variables["title"] == "" {
|
|
mdata.Variables["title"] = title
|
|
}
|
|
|
|
// move available and valid front matters to the meta values
|
|
meta := make(map[string]string)
|
|
for _, val := range recognizedMetaTags {
|
|
if mVal, ok := mdata.Variables[val]; ok {
|
|
meta[val] = mVal.(string)
|
|
}
|
|
}
|
|
|
|
// massage possible files
|
|
files := []FileInfo{}
|
|
for _, ent := range dirents {
|
|
file := FileInfo{
|
|
FileInfo: ent,
|
|
ctx: ctx,
|
|
}
|
|
files = append(files, file)
|
|
}
|
|
|
|
return execTemplate(c, mdata, meta, files, ctx)
|
|
}
|