r"""Parse a Content-type like header. Return the main content-type and a dictionary of options. >>> d = "form-data; foo=\"b\\\\a\\\"r\"; file*=utf-8''T%C3%A4st" >>> ct, d = _parse_header(d) >>> ct 'form-data' >>> d['file'] == r'T\u00e4st'.encode('ascii').decode('unicode_esc
(line: str)
| 946 | |
| 947 | |
| 948 | def _parse_header(line: str) -> Tuple[str, Dict[str, str]]: |
| 949 | r"""Parse a Content-type like header. |
| 950 | |
| 951 | Return the main content-type and a dictionary of options. |
| 952 | |
| 953 | >>> d = "form-data; foo=\"b\\\\a\\\"r\"; file*=utf-8''T%C3%A4st" |
| 954 | >>> ct, d = _parse_header(d) |
| 955 | >>> ct |
| 956 | 'form-data' |
| 957 | >>> d['file'] == r'T\u00e4st'.encode('ascii').decode('unicode_escape') |
| 958 | True |
| 959 | >>> d['foo'] |
| 960 | 'b\\a"r' |
| 961 | """ |
| 962 | parts = _parseparam(";" + line) |
| 963 | key = next(parts) |
| 964 | # decode_params treats first argument special, but we already stripped key |
| 965 | params = [("Dummy", "value")] |
| 966 | for p in parts: |
| 967 | i = p.find("=") |
| 968 | if i >= 0: |
| 969 | name = p[:i].strip().lower() |
| 970 | value = p[i + 1 :].strip() |
| 971 | params.append((name, native_str(value))) |
| 972 | decoded_params = email.utils.decode_params(params) |
| 973 | decoded_params.pop(0) # get rid of the dummy again |
| 974 | pdict = {} |
| 975 | for name, decoded_value in decoded_params: |
| 976 | value = email.utils.collapse_rfc2231_value(decoded_value) |
| 977 | if len(value) >= 2 and value[0] == '"' and value[-1] == '"': |
| 978 | value = value[1:-1] |
| 979 | pdict[name] = value |
| 980 | return key, pdict |
| 981 | |
| 982 | |
| 983 | def _encode_header(key: str, pdict: Dict[str, str]) -> str: |
no test coverage detected