Csp.fromMap constructor

Csp.fromMap(Map<String, List<String>> directivesMap)

Constructs CSP declaration from the map.

Throws ArgumentError if the argument contains invalid strings.

Implementation

Csp.fromMap(Map<String, List<String>> directivesMap)
    : directivesMap = _immutableOptimizeddirectivesMap(directivesMap),
      _source = null {
  for (var argumentList in directivesMap.values) {
    for (var argument in argumentList) {
      // Look for illegal/unusual characters
      if (argument.codeUnits.any((e) => e <= 32 || e == 127) ||
          argument.contains(';')) {
        throw ArgumentError('Unsupported CSP pattern: `$argument`');
      }
    }
  }
}