mirror of
https://github.com/cwinfo/matterbridge.git
synced 2024-12-27 10:05:39 +00:00
8764be7461
* Add vk bridge * Vk bridge attachments * Vk bridge forwarded messages * Vk bridge sample config and code cleanup * Vk bridge add vendor * Vk bridge message edit * Vk bridge: fix fetching names of other bots * Vk bridge: code cleanup * Vk bridge: fix shadows declaration * Vk bridge: remove UseFileURL
61 lines
1.5 KiB
Go
61 lines
1.5 KiB
Go
/*
|
|
Package internal unimportable
|
|
*/
|
|
package internal // import "github.com/SevereCloud/vksdk/v2/internal"
|
|
|
|
import (
|
|
"io"
|
|
"strings"
|
|
|
|
"golang.org/x/text/encoding/charmap"
|
|
"golang.org/x/text/runes"
|
|
"golang.org/x/text/transform"
|
|
)
|
|
|
|
// illegal is a collection of runes.
|
|
type illegal struct{}
|
|
|
|
// Contains return true.
|
|
func (i illegal) Contains(r rune) bool {
|
|
return !(r == 0x09 ||
|
|
r == 0x0A ||
|
|
r == 0x0D ||
|
|
r >= 0x20 && r <= 0xDF77 ||
|
|
r >= 0xE000 && r <= 0xFFFD ||
|
|
r >= 0x10000 && r <= 0x10FFFF)
|
|
}
|
|
|
|
// XMLSanitizerReader creates an io.Reader that
|
|
// wraps another io.Reader and removes illegal xml
|
|
// characters from the io stream.
|
|
func XMLSanitizerReader(xml io.Reader) io.Reader {
|
|
var i illegal
|
|
t := transform.Chain(runes.Remove(i))
|
|
|
|
return transform.NewReader(xml, t)
|
|
}
|
|
|
|
// CharsetUnknownError unknown charset.
|
|
type CharsetUnknownError struct {
|
|
Name string
|
|
}
|
|
|
|
// Error returns the message of a CharsetUnknownError.
|
|
func (c *CharsetUnknownError) Error() string {
|
|
return "unknown charset: " + c.Name
|
|
}
|
|
|
|
// CharsetReader if non-nil, defines a function to generate
|
|
// charset-conversion readers, converting from the provided
|
|
// non-UTF-8 charset into UTF-8. If CharsetReader is nil or
|
|
// returns an error, parsing stops with an error. One of the
|
|
// the CharsetReader's result values must be non-nil.
|
|
func CharsetReader(charset string, input io.Reader) (io.Reader, error) {
|
|
switch strings.ToLower(charset) {
|
|
case "windows-1251":
|
|
return charmap.Windows1251.NewDecoder().Reader(input), nil
|
|
default:
|
|
return nil, &CharsetUnknownError{Name: charset}
|
|
}
|
|
}
|