logikonline
12f4ea03a8
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Go's semantic import versioning requires v2+ modules to include the major version in the module path. This enables using proper version tags (v3.x.x) instead of pseudo-versions. Updated module path: code.gitcaddy.com/server/v3
48 lines
1.7 KiB
Go
48 lines
1.7 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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//go:generate go run invisible/generate.go -v -o ./invisible_gen.go
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//go:generate go run ambiguous/generate.go -v -o ./ambiguous_gen.go ambiguous/ambiguous.json
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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.gitcaddy.com/server/v3/modules/log"
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"code.gitcaddy.com/server/v3/modules/setting"
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"code.gitcaddy.com/server/v3/modules/translation"
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)
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// RuneNBSP is the codepoint for NBSP
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const RuneNBSP = 0xa0
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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, allowed ...rune) (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, allowed...) // 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, allowed ...rune) (escaped *EscapeStatus, err error) {
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if !setting.UI.AmbiguousUnicodeDetection {
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_, err = io.Copy(writer, reader)
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return &EscapeStatus{}, err
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}
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outputStream := &HTMLStreamerWriter{Writer: writer}
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streamer := NewEscapeStreamer(locale, outputStream, allowed...).(*escapeStreamer)
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if err = StreamHTML(reader, streamer); err != nil {
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streamer.escaped.HasError = true
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log.Error("Error whilst escaping: %v", err)
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}
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return streamer.escaped, err
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}
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