Implement key record recreation

authorizedkeys/parser.py

@@ -49,6 +49,13 @@ class AuthorizedKey:
 		self.key_b64 = split[1]
 		self.coment = split[2] if len(split) >= 3 else None
 	
+	def to_string(self):
+		result = ''
+		if self.options is not None: result += self.options + ' '
+		result += f'{self.type} {self.key_b64}'
+		if self.comment is not None: result += ' ' + self.comment
+		return result
+
 def parse_file(f: IO[str]) -> list[AuthorizedKey | str]:
 	result = []
 	for line in f:
@@ -61,3 +68,10 @@ def parse_file(f: IO[str]) -> list[AuthorizedKey | str]:
 	return result
 
 # TODO: Implement option parsing, key validation and decoding to bytes.
+
+def dump_file(keys: list[AuthorizedKey | str], f: IO[str]) -> None:
+	for rec in keys:
+		if isinstance(rec, AuthorizedKey):
+			rec = rec.to_string()
+		f.write(rec)
+		f.write('\n')