mirror of
https://github.com/larksuite/cli.git
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900c12ce8d
* feat: add FileIO extension for file transfer abstraction Introduce extension/fileio package with Provider/FileIO/File interfaces and a global registry, following the same pattern as extension/credential. - Add LocalFileIO default implementation with path validation and atomic writes - Wire FileIOProvider into Factory and resolve at runtime via RuntimeContext.FileIO() - Factory holds Provider (not resolved instance), deferring resolution to execution time
47 lines
1.4 KiB
Go
47 lines
1.4 KiB
Go
// Copyright (c) 2026 Lark Technologies Pte. Ltd.
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// SPDX-License-Identifier: MIT
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package validate
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import (
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"regexp"
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"strings"
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"github.com/larksuite/cli/internal/charcheck"
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)
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// ansiEscape matches ANSI CSI sequences (ESC[ ... letter) and OSC sequences (ESC] ... BEL).
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// Private CSI sequences (e.g. ESC[?25l) use the extended parameter byte range [0-9;?>=!].
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var ansiEscape = regexp.MustCompile(`\x1b\[[0-9;?>=!]*[a-zA-Z]|\x1b\][^\x07]*\x07`)
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// SanitizeForTerminal strips ANSI escape sequences, C0 control characters
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// (except \n and \t), and dangerous Unicode from text, preserving the actual
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// readable content. It should be applied to table format output and stderr
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// messages, but NOT to json/ndjson output where programmatic consumers need
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// the raw data.
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//
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// API responses may contain injected ANSI sequences that clear the screen,
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// fake a colored "OK" status, or change the terminal title. In AI Agent
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// scenarios, such injections can also pollute the LLM's context window
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// with misleading output.
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func SanitizeForTerminal(text string) string {
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if strings.ContainsRune(text, '\x1b') {
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text = ansiEscape.ReplaceAllString(text, "")
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}
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var b strings.Builder
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b.Grow(len(text))
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for _, r := range text {
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switch {
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case r == '\n' || r == '\t':
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b.WriteRune(r)
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case r < 0x20 || r == 0x7f:
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continue
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case charcheck.IsDangerousUnicode(r):
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continue
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default:
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b.WriteRune(r)
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}
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}
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return b.String()
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}
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