mirror of
https://github.com/dutchcoders/transfer.sh.git
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cb6e5cb0c7
* use dep for vendoring * lets encrypt * moved web to transfer.sh-web repo * single command install * added first tests
74 lines
1.7 KiB
Go
74 lines
1.7 KiB
Go
// Copyright 2013 The Go Authors. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file or at
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// https://developers.google.com/open-source/licenses/bsd.
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package gosrc
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import (
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"path/filepath"
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"regexp"
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"time"
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)
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type Presentation struct {
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Filename string
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Files map[string][]byte
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Updated time.Time
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}
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type presBuilder struct {
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filename string
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data []byte
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resolveURL func(fname string) string
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fetch func(fnames []string) ([]*File, error)
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}
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var assetPat = regexp.MustCompile(`(?m)^\.(play|code|image|iframe|html)\s+(?:-\S+\s+)*(\S+)`)
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func (b *presBuilder) build() (*Presentation, error) {
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var data []byte
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var fnames []string
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i := 0
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for _, m := range assetPat.FindAllSubmatchIndex(b.data, -1) {
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name := filepath.Clean(string(b.data[m[4]:m[5]]))
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switch string(b.data[m[2]:m[3]]) {
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case "iframe", "image":
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data = append(data, b.data[i:m[4]]...)
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data = append(data, b.resolveURL(name)...)
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case "html":
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// TODO: sanitize and fix relative URLs in HTML.
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data = append(data, "\nERROR: .html not supported\n"...)
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case "play", "code":
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data = append(data, b.data[i:m[5]]...)
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found := false
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for _, n := range fnames {
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if n == name {
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found = true
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break
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}
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}
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if !found {
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fnames = append(fnames, name)
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}
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default:
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data = append(data, "\nERROR: unknown command\n"...)
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}
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i = m[5]
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}
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data = append(data, b.data[i:]...)
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files, err := b.fetch(fnames)
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if err != nil {
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return nil, err
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}
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pres := &Presentation{
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Updated: time.Now().UTC(),
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Filename: b.filename,
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Files: map[string][]byte{b.filename: data},
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}
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for _, f := range files {
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pres.Files[f.Name] = f.Data
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}
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return pres, nil
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}
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