mirror of
https://github.com/shtorm-7/sing-box-extended.git
synced 2026-06-13 06:48:16 +03:00
69 lines
2.4 KiB
Go
69 lines
2.4 KiB
Go
package sudoku
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import (
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"strings"
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"github.com/sagernet/sing-box/transport/sudoku/obfs/sudoku"
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)
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func normalizeCustomPatterns(customTable string, customTables []string) []string {
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patterns := customTables
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if len(patterns) == 0 && strings.TrimSpace(customTable) != "" {
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patterns = []string{customTable}
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}
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if len(patterns) == 0 {
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patterns = []string{""}
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}
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return patterns
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}
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func normalizeTablePatterns(tableType string, customTable string, customTables []string) ([]string, error) {
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patterns := normalizeCustomPatterns(customTable, customTables)
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if _, err := sudoku.ParseASCIIMode(tableType); err != nil {
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return nil, err
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}
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return patterns, nil
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}
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// NewTablesWithCustomPatterns builds one or more obfuscation tables from x/v/p custom patterns.
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// When customTables is non-empty it overrides customTable (matching upstream Sudoku behavior).
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//
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// Deprecated-ish: prefer NewClientTablesWithCustomPatterns / NewServerTablesWithCustomPatterns.
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func NewTablesWithCustomPatterns(key string, tableType string, customTable string, customTables []string) ([]*sudoku.Table, error) {
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patterns, err := normalizeTablePatterns(tableType, customTable, customTables)
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if err != nil {
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return nil, err
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}
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tables := make([]*sudoku.Table, 0, len(patterns))
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for _, pattern := range patterns {
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pattern = strings.TrimSpace(pattern)
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t, err := NewTableWithCustom(key, tableType, pattern)
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if err != nil {
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return nil, err
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}
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tables = append(tables, t)
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}
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return tables, nil
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}
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func NewClientTablesWithCustomPatterns(key string, tableType string, customTable string, customTables []string) ([]*sudoku.Table, error) {
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return NewTablesWithCustomPatterns(key, tableType, customTable, customTables)
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}
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// NewServerTablesWithCustomPatterns matches upstream server behavior: when probeable custom table
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// rotation is enabled, also accept the default table to avoid forcing clients to update in lockstep.
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func NewServerTablesWithCustomPatterns(key string, tableType string, customTable string, customTables []string) ([]*sudoku.Table, error) {
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patterns, err := normalizeTablePatterns(tableType, customTable, customTables)
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if err != nil {
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return nil, err
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}
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asciiMode, err := sudoku.ParseASCIIMode(tableType)
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if err != nil {
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return nil, err
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}
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if asciiMode.Uplink == "entropy" && len(patterns) > 0 && strings.TrimSpace(patterns[0]) != "" {
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patterns = append([]string{""}, patterns...)
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}
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return NewTablesWithCustomPatterns(key, tableType, "", patterns)
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}
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