func FacebookChannelHandler(ctx *app.Context) {
ctx.Header().Set("Content-Type", "text/html")
fmt.Fprintf(ctx, "<script src=\"//connect.facebook.net/en_US/all.js\"></script>")
}
func SourceHandler(ctx *app.Context) {
dctx := doc.GetEnvironment(ctx.App())
rel := ctx.IndexValue(0)
p := dctx.FromSlash(rel)
pDir := dctx.Dir(p)
if pDir == "." {
pDir = p
} else {
}
dir := packageDir(dctx, pDir)
filePath := dir
if pDir+dctx.Separator != p && pDir != p {
filePath = dctx.Join(dir, dctx.Base(p))
}
log.Debugf("Loading source from %s", filePath)
var breadcrumbs []*breadcrumb
for ii := 0; ii < len(rel); {
var end int
slash := strings.IndexByte(rel[ii:], '/')
if slash < 0 {
end = len(rel)
} else {
end = ii + slash
}
breadcrumbs = append(breadcrumbs, &breadcrumb{
Title: rel[ii:end],
Href: ctx.MustReverse(SourceHandlerName, rel[:end]),
})
ii = end + 1
}
var tmpl string
var title string
var files []string
var code template.HTML
var lines []int
if dctx.IsDir(filePath) {
if rel != "" && rel[len(rel)-1] != '/' {
ctx.MustRedirectReverse(true, SourceHandlerName, rel+"/")
return
}
contents, err := dctx.ReadDir(filePath)
if err != nil {
panic(err)
}
for _, v := range contents {
if n := v.Name(); len(n) > 0 && n[0] != '.' {
files = append(files, n)
}
}
title = "Directory " + dctx.Base(rel)
tmpl = "dir.html"
} else {
f, err := dctx.OpenFile(filePath)
if err != nil {
ctx.NotFound("File not found")
return
}
defer f.Close()
contents, err := ioutil.ReadAll(f)
if err != nil {
panic(err)
}
contentType := http.DetectContentType(contents)
if !strings.HasPrefix(contentType, "text") {
ctx.Header().Set("Content-Type", contentType)
switch contentType {
case "image/gif", "image/png", "image/jpeg":
default:
ctx.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=%s;", dctx.Base(rel)))
}
ctx.Write(contents)
return
}
title = "File " + dctx.Base(rel)
var buf bytes.Buffer
buf.WriteString("<span id=\"line-1\">")
last := 0
line := 1
for ii, v := range contents {
if v == '\n' {
buf.WriteString(html.Escape(string(contents[last:ii])))
lines = append(lines, line)
last = ii
line++
buf.WriteString(fmt.Sprintf("</span><span id=\"line-%d\">", line))
}
}
buf.Write(contents[last:])
buf.WriteString("</span>")
code = template.HTML(buf.String())
tmpl = "source.html"
}
data := map[string]interface{}{
"Title": rel,
"Header": title,
"Breadcrumbs": breadcrumbs,
"Files": files,
"Code": code,
"Lines": lines,
"Padding": math.Ceil(math.Log10(float64(len(lines)+1))) + 0.1,
"Highlighter": highlighters[path.Ext(rel)],
}
ctx.MustExecute(tmpl, data)
}