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package setup
import (
"os"
"github.com/mholt/caddy/middleware"
"github.com/mholt/caddy/middleware/extensions"
)
// Ext configures a new instance of 'extensions' middleware for clean URLs.
func Ext(c *Controller) (middleware.Middleware, error) {
root := c.Root
exts, err := extParse(c)
if err != nil {
return nil, err
}
return func(next middleware.Handler) middleware.Handler {
return extensions.Ext{
Next: next,
Extensions: exts,
Root: root,
}
}, nil
}
// extParse sets up an instance of extension middleware
// from a middleware controller and returns a list of extensions.
func extParse(c *Controller) ([]string, error) {
var exts []string
for c.Next() {
// At least one extension is required
if !c.NextArg() {
return exts, c.ArgErr()
}
exts = append(exts, c.Val())
// Tack on any other extensions that may have been listed
exts = append(exts, c.RemainingArgs()...)
}
return exts, nil
}
// resourceExists returns true if the file specified at
// root + path exists; false otherwise.
func resourceExists(root, path string) bool {
_, err := os.Stat(root + path)
// technically we should use os.IsNotExist(err)
// but we don't handle any other kinds of errors anyway
return err == nil
}
|
