_ Git - rust-lightning/blob - lightning-persister/src/utils.rs

   1 use lightning::util::persist::{KVSTORE_NAMESPACE_KEY_ALPHABET, KVSTORE_NAMESPACE_KEY_MAX_LEN};
   2 use lightning::util::string::PrintableString;
   3
   4
   5 pub(crate) fn is_valid_kvstore_str(key: &str) -> bool {
   6         key.len() <= KVSTORE_NAMESPACE_KEY_MAX_LEN && key.chars().all(|c| KVSTORE_NAMESPACE_KEY_ALPHABET.contains(c))
   7 }
   8
   9 pub(crate) fn check_namespace_key_validity(
  10         primary_namespace: &str, secondary_namespace: &str, key: Option<&str>, operation: &str)
  11 -> Result<(), std::io::Error> {
  12         if let Some(key) = key {
  13                 if key.is_empty() {
  14                         debug_assert!(false, "Failed to {} {}/{}/{}: key may not be empty.", operation,
  15                                 PrintableString(primary_namespace), PrintableString(secondary_namespace), PrintableString(key));
  16                         let msg = format!("Failed to {} {}/{}/{}: key may not be empty.", operation,
  17                                 PrintableString(primary_namespace), PrintableString(secondary_namespace), PrintableString(key));
  18                         return Err(std::io::Error::new(std::io::ErrorKind::Other, msg));
  19                 }
  20
  21                 if primary_namespace.is_empty() && !secondary_namespace.is_empty() {
  22                         debug_assert!(false,
  23                                 "Failed to {} {}/{}/{}: primary namespace may not be empty if a non-empty secondary namespace is given.",
  24                                 operation,
  25                                 PrintableString(primary_namespace), PrintableString(secondary_namespace), PrintableString(key));
  26                         let msg = format!(
  27                                 "Failed to {} {}/{}/{}: primary namespace may not be empty if a non-empty secondary namespace is given.", operation,
  28                                 PrintableString(primary_namespace), PrintableString(secondary_namespace), PrintableString(key));
  29                         return Err(std::io::Error::new(std::io::ErrorKind::Other, msg));
  30                 }
  31
  32                 if !is_valid_kvstore_str(primary_namespace) || !is_valid_kvstore_str(secondary_namespace) || !is_valid_kvstore_str(key) {
  33                         debug_assert!(false, "Failed to {} {}/{}/{}: primary namespace, secondary namespace, and key must be valid.",
  34                                 operation,
  35                                 PrintableString(primary_namespace), PrintableString(secondary_namespace), PrintableString(key));
  36                         let msg = format!("Failed to {} {}/{}/{}: primary namespace, secondary namespace, and key must be valid.",
  37                                 operation,
  38                                 PrintableString(primary_namespace), PrintableString(secondary_namespace), PrintableString(key));
  39                         return Err(std::io::Error::new(std::io::ErrorKind::Other, msg));
  40                 }
  41         } else {
  42                 if primary_namespace.is_empty() && !secondary_namespace.is_empty() {
  43                         debug_assert!(false,
  44                                 "Failed to {} {}/{}: primary namespace may not be empty if a non-empty secondary namespace is given.",
  45                                 operation, PrintableString(primary_namespace), PrintableString(secondary_namespace));
  46                         let msg = format!(
  47                                 "Failed to {} {}/{}: primary namespace may not be empty if a non-empty secondary namespace is given.",
  48                                 operation, PrintableString(primary_namespace), PrintableString(secondary_namespace));
  49                         return Err(std::io::Error::new(std::io::ErrorKind::Other, msg));
  50                 }
  51                 if !is_valid_kvstore_str(primary_namespace) || !is_valid_kvstore_str(secondary_namespace) {
  52                         debug_assert!(false, "Failed to {} {}/{}: primary namespace and secondary namespace must be valid.",
  53                                 operation, PrintableString(primary_namespace), PrintableString(secondary_namespace));
  54                         let msg = format!("Failed to {} {}/{}: primary namespace and secondary namespace must be valid.",
  55                                 operation, PrintableString(primary_namespace), PrintableString(secondary_namespace));
  56                         return Err(std::io::Error::new(std::io::ErrorKind::Other, msg));
  57                 }
  58         }
  59
  60         Ok(())
  61 }