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423cdd4d94
Follow-up to #37078. - Use Unicode Control Pictures](U+2400-U+2421) to render C0 control characters - Make it work in diff view too - Replace escape warning emoji with SVG - Align escape warning button with code lines --------- Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
44 lines
1.4 KiB
Go
44 lines
1.4 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package charset
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import (
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"html/template"
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"io"
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"strings"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/translation"
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)
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type EscapeOptions struct {
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Allowed map[rune]bool
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}
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func AllowRuneNBSP() map[rune]bool {
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return map[rune]bool{0xa0: true}
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}
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func EscapeOptionsForView() EscapeOptions {
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return EscapeOptions{
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// it's safe to see NBSP in the view, but maybe not in the diff
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Allowed: AllowRuneNBSP(),
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}
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}
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// EscapeControlHTML escapes the Unicode control sequences in a provided html document
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func EscapeControlHTML(html template.HTML, locale translation.Locale, opts ...EscapeOptions) (escaped *EscapeStatus, output template.HTML) {
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if !setting.UI.AmbiguousUnicodeDetection {
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return &EscapeStatus{}, html
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}
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sb := &strings.Builder{}
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escaped, _ = EscapeControlReader(strings.NewReader(string(html)), sb, locale, opts...) // err has been handled in EscapeControlReader
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return escaped, template.HTML(sb.String())
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}
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// EscapeControlReader escapes the Unicode control sequences in a provided reader of HTML content and writer in a locale and returns the findings as an EscapeStatus
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func EscapeControlReader(reader io.Reader, writer io.Writer, locale translation.Locale, opts ...EscapeOptions) (*EscapeStatus, error) {
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return escapeStream(locale, reader, writer, opts...)
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}
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