import re from . import headers def decode(hdrs, content): """ Takes a multipart boundary encoded string and returns list of (key, value) tuples. """ v = hdrs.get("content-type") if v: v = headers.parse_content_type(v) if not v: return [] try: boundary = v[2]["boundary"].encode("ascii") except (KeyError, UnicodeError): return [] rx = re.compile(br'\bname="([^"]+)"') r = [] for i in content.split(b"--" + boundary): parts = i.splitlines() if len(parts) > 1 and parts[0][0:2] != b"--": match = rx.search(parts[1]) if match: key = match.group(1) value = b"".join(parts[3 + parts[2:].index(b""):]) r.append((key, value)) return r return []