o ]i @sfddlZddlZddlmZdedededefddZ dd eded edefd d ZGdddZdS)N)Optionalcandidate_typecandidate_transport base_addressreturncCs"d|||f}t|dS)z7 See RFC 5245 - 4.1.1.3. Computing Foundations z%s|%s|%sascii)hashlibmd5encode hexdigest)rrrkeyr D/home/ubuntu/.local/lib/python3.10/site-packages/aioice/candidate.pycandidate_foundationsrcandidate_component local_prefcCsF|dkrd}n|dkrd}n |dkrd}nd}d|d |d |S) z5 See RFC 5245 - 4.1.2.1. Recommended Formula host~prflxnsrflxdrir )rrr type_prefr r rcandidate_prioritysrc@seZdZdZ    ddedededededed ed eed eed eed eeddfddZededdfddZ defddZ ddde fddZ defddZ dS) Candidatez An ICE candidate. N foundation component transportpriorityrporttyperelated_address related_porttcptype generationrc CsF||_||_||_||_||_||_||_||_| |_| |_ | |_ dS)N rrrr rr!r"r#r$r%r&) selfrrrr rr!r"r#r$r%r&r r r__init__'s zCandidate.__init__sdpc Cs|}t|dkrtdd}d}d}d}tdt|ddD]9}||dkr/||d}q ||dkr>t||d}q ||dkrK||d}q ||d krYt||d}q t|d t|d|dt|d |d t|d |d||||d S)z Parse a :class:`Candidate` from SDP. .. code-block:: python Candidate.from_sdp( '6815297761 1 udp 659136 1.2.3.4 31102 typ host generation 0') z#SDP does not have enough propertiesNraddrrportr%r&rr')splitlen ValueErrorrangeintr)clsr*bitsr#r$r%r&ir r rfrom_sdpAs<        zCandidate.from_sdpcCsd|j|j|j|j|j|j|jf}|jdur|d|j7}|jdur*|d|j7}|j dur6|d|j 7}|j durB|d|j 7}|S)zB Return a string representation suitable for SDP. z%s %d %s %d %s %d typ %sNz raddr %sz rport %sz tcptype %sz generation %dr')r(r*r r rto_sdpks$    zCandidate.to_sdpothercCsDt|j}t|j}|j|jko!|j|jko!|j|jkS)z A local candidate is paired with a remote candidate if and only if the two candidates have the same component ID and have the same IP address version. ) ipaddress ip_addressrrrlowerversion)r(r>abr r r can_pair_withs    zCandidate.can_pair_withcCs d|S)Nz Candidate(%s))r=)r(r r r__repr__s zCandidate.__repr__)NNNN)__name__ __module__ __qualname____doc__strr8rr) classmethodr<r=boolrErFr r r rr"sH      )r)r) rr?typingrrKrr8rrr r r rs.