69 lines
1.4 KiB
Go
69 lines
1.4 KiB
Go
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package nginx
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import (
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"fmt"
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"strings"
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)
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// ValidateConfigSyntax performs a lightweight syntax check when nginx -t is unavailable.
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func ValidateConfigSyntax(content string) error {
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depth := 0
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for i, raw := range strings.Split(content, "\n") {
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trimmed := strings.TrimSpace(raw)
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if trimmed == "" || strings.HasPrefix(trimmed, "#") {
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continue
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}
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line := stripInlineComment(trimmed)
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if line == "" {
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continue
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}
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depth += strings.Count(line, "{") - strings.Count(line, "}")
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if depth < 0 {
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return fmt.Errorf("第 %d 行：多余的 `}`", i+1)
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}
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if err := validateConfigLine(line, i+1); err != nil {
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return err
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}
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}
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if depth != 0 {
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return fmt.Errorf("配置块大括号未配对")
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}
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return nil
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}
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func stripInlineComment(line string) string {
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inSingle := false
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inDouble := false
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for i := 0; i < len(line); i++ {
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ch := line[i]
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switch ch {
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case '\'':
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if !inDouble {
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inSingle = !inSingle
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}
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case '"':
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if !inSingle {
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inDouble = !inDouble
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}
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case '#':
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if !inSingle && !inDouble {
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return strings.TrimSpace(line[:i])
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}
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}
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}
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return strings.TrimSpace(line)
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}
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func validateConfigLine(line string, lineNo int) error {
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if line == "}" || line == "{" {
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return nil
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}
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if strings.HasSuffix(line, "{") {
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return nil
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}
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if strings.HasSuffix(line, ";") {
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return nil
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}
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return fmt.Errorf("第 %d 行：无效的 Nginx 语法（应以 ; 或 { 结尾）", lineNo)
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}
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