Function validateGlobPattern

src/utils/permissions/pathValidation.ts:278–325

(
  cleanPath: string,
  cwd: string,
  toolPermissionContext: ToolPermissionContext,
  operationType: FileOperationType,
)

 * Returns the validation result for the base path where the glob would expand.
 */
export function validateGlobPattern(
  cleanPath: string,
  cwd: string,
  toolPermissionContext: ToolPermissionContext,
  operationType: FileOperationType,
): ResolvedPathCheckResult {
  if (containsPathTraversal(cleanPath)) {
    // For patterns with path traversal, resolve the full path
    const absolutePath = isAbsolute(cleanPath)
      ? cleanPath
      : resolve(cwd, cleanPath)
    const { resolvedPath, isCanonical } = safeResolvePath(
      getFsImplementation(),
      absolutePath,
    )
    const result = isPathAllowed(
      resolvedPath,
      toolPermissionContext,
      operationType,
      isCanonical ? [resolvedPath] : undefined,
    )
    return {
      allowed: result.allowed,
      resolvedPath,
      decisionReason: result.decisionReason,
    }
  }

  const basePath = getGlobBaseDirectory(cleanPath)
  const absoluteBasePath = isAbsolute(basePath)
    ? basePath
    : resolve(cwd, basePath)
  const { resolvedPath, isCanonical } = safeResolvePath(
    getFsImplementation(),
    absoluteBasePath,
  )
  const result = isPathAllowed(
    resolvedPath,
    toolPermissionContext,
    operationType,
    isCanonical ? [resolvedPath] : undefined,
  )
  return {
    allowed: result.allowed,
    resolvedPath,
    decisionReason: result.decisionReason,
  }
}

const WINDOWS_DRIVE_ROOT_REGEX = /^[A-Za-z]:\/?$/
const WINDOWS_DRIVE_CHILD_REGEX = /^[A-Za-z]:\/[^/]+$/