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| j d S )zbAs much of the message as could be processed.
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zMessage.__init__�returnc C r! )zThe question section.r �rC r" r r r �question� �
zMessage.questionc C � || j d< d S �Nr rQ �r �vr r r rR � � c C r! )zThe answer section.r* rQ r" r r r �answer� rS zMessage.answerc C rT )Nr* rQ rV r r r rY � rX c C r! )zThe authority section.r+ rQ r" r r r � authority� rS zMessage.authorityc C rT )Nr+ rQ rV r r r rZ � rX c C r! )z The additional data section.r, rQ r" r r r �
additional� rS zMessage.additionalc C rT r- rQ rV r r r r[ � rX c C s dt | j� d S )Nz<DNS message, ID �>)�reprr= r" r r r �__repr__� s zMessage.__repr__c C s | � � S r )�to_textr" r r r �__str__� s zMessage.__str__TrK �
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}|| j vr^ dS qTdS )zuIs *other*, also a ``dns.message.Message``, a response to this
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�zMessage.is_responser} c C s2 t | j�D ]\}}||u r| �|� S qtd��)z�Return the "section number" of the specified section for use
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�zMessage.section_number�numberc C s | j �|�}| j| S )a Return the section list associated with the specified section
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|||||f} |s}| jdurk| j�| �} | durj| S n|D ]} | �|||||�r|| S qm|s�t�tj�|||||�} |�| � | jdur�| | j| < | S )a� Find the RRset with the given attributes in the specified section.
*section*, an ``int`` section number, a ``str`` section name, or one of
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the section of the message to search. For example::
my_message.find_rrset(my_message.answer, name, rdclass, rdtype)
my_message.find_rrset(dns.message.ANSWER, name, rdclass, rdtype)
my_message.find_rrset("ANSWER", name, rdclass, rdtype)
*name*, a ``dns.name.Name`` or ``str``, the name of the RRset.
*rdclass*, an ``int`` or ``str``, the class of the RRset.
*rdtype*, an ``int`` or ``str``, the type of the RRset.
*covers*, an ``int`` or ``str``, the covers value of the RRset.
The default is ``dns.rdatatype.NONE``.
*deleting*, an ``int``, ``str``, or ``None``, the deleting value of the
RRset. The default is ``None``.
*create*, a ``bool``. If ``True``, create the RRset if it is not found.
The created RRset is appended to *section*.
*force_unique*, a ``bool``. If ``True`` and *create* is also ``True``,
create a new RRset regardless of whether a matching RRset exists
already. The default is ``False``. This is useful when creating
DDNS Update messages, as order matters for them.
*idna_codec*, a ``dns.name.IDNACodec``, specifies the IDNA
encoder/decoder. If ``None``, the default IDNA 2003 encoder/decoder
is used.
Raises ``KeyError`` if the RRset was not found and create was
``False``.
Returns a ``dns.rrset.RRset object``.
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*section*, an ``int`` section number, a ``str`` section name, or one of
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the section of the message to search. For example::
my_message.get_rrset(my_message.answer, name, rdclass, rdtype)
my_message.get_rrset(dns.message.ANSWER, name, rdclass, rdtype)
my_message.get_rrset("ANSWER", name, rdclass, rdtype)
*name*, a ``dns.name.Name`` or ``str``, the name of the RRset.
*rdclass*, an ``int`` or ``str``, the class of the RRset.
*rdtype*, an ``int`` or ``str``, the type of the RRset.
*covers*, an ``int`` or ``str``, the covers value of the RRset.
The default is ``dns.rdatatype.NONE``.
*deleting*, an ``int``, ``str``, or ``None``, the deleting value of the
RRset. The default is ``None``.
*create*, a ``bool``. If ``True``, create the RRset if it is not found.
The created RRset is appended to *section*.
*force_unique*, a ``bool``. If ``True`` and *create* is also ``True``,
create a new RRset regardless of whether a matching RRset exists
already. The default is ``False``. This is useful when creating
DDNS Update messages, as order matters for them.
*idna_codec*, a ``dns.name.IDNACodec``, specifies the IDNA
encoder/decoder. If ``None``, the default IDNA 2003 encoder/decoder
is used.
Returns a ``dns.rrset.RRset object`` or ``None``.
N)r� r� ) r r} rv r� r� r� r� r� r� r� rx r r r � get_rrset� s" 3�
��zMessage.get_rrsetc C sJ | j sdS d}| j d jD ]}|�� }|t|�d 7 }q
| jr#|d7 }|S )z:Compute the size required for the OPT RR, padding excludedr � � )rD ro �to_wirer� rF )r �size�option�wirer r r �_compute_opt_reserve� s z Message._compute_opt_reservec C s* | j sdS t�� }| j �|� t|�� �S )z)Compute the size required for the TSIG RRr )rH rf �BytesIOr� r� rt )r �fr r r �_compute_tsig_reserve� s
z Message._compute_tsig_reserver �max_size�multirL c K s� |du r | j dur | j }|dkr| jdkr| j}nd}|dk r"d}n|dkr(d}tj�| j| j||�}| �� }|�|� | � � }|�|� | j
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| j� qH| jD ]} |jtjj| fi |�� qX| jD ]} |jtjj| fi |�� qj| jD ]} |jtjj| fi |�� q||�� | jdur�|�| j| j||� |�� | jdur�tj� |� � | j | jd t t � � �| j!||�\}
} | j�"� | j�#|
� |�tjj| j� |�� |r�| | _$|� � S )a� Return a string containing the message in DNS compressed wire
format.
Additional keyword arguments are passed to the RRset ``to_wire()``
method.
*origin*, a ``dns.name.Name`` or ``None``, the origin to be appended
to any relative names. If ``None``, and the message has an origin
attribute that is not ``None``, then it will be used.
*max_size*, an ``int``, the maximum size of the wire format
output; default is 0, which means "the message's request
payload, if nonzero, or 65535".
*multi*, a ``bool``, should be set to ``True`` if this message is
part of a multiple message sequence.
*tsig_ctx*, a ``dns.tsig.HMACTSig`` or ``dns.tsig.GSSTSig`` object, the
ongoing TSIG context, used when signing zone transfers.
Raises ``dns.exception.TooBig`` if *max_size* was exceeded.
Returns a ``bytes``.
Nr i�� i )%rK rE r? �renderer�Rendererr= rB r� �reserver� rR � add_questionrv r� r� rY � add_rrsetr2 rZ r3 r[ r4 �release_reservedrD �add_optrF � write_headerrH �sign�get_wirerG r: rO rI �clear�addrL ) r rK r� r� rL rb �r� opt_reserve� tsig_reserverx �new_tsig�ctxr r r r� sX !
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zMessage.to_wirec C s8 t jjj�t jjt jj|||||||� }t j�| d|�S rU )r? �rdtypes�ANY�TSIGr� r� rx �
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|}|j}n0t|�r|| |�}n&t |t�r"tj�|�}|du r,tt |��}|| }t |t
�r=tj�|||�}|| _ |du rG| j }| �
|| j jd|dtjj| j j |||�| _dS )a� When sending, a TSIG signature using the specified key
should be added.
*key*, a ``dns.tsig.Key`` is the key to use. If a key is specified,
the *keyring* and *algorithm* fields are not used.
*keyring*, a ``dict``, ``callable`` or ``dns.tsig.Key``, is either
the TSIG keyring or key to use.
The format of a keyring dict is a mapping from TSIG key name, as
``dns.name.Name`` to ``dns.tsig.Key`` or a TSIG secret, a ``bytes``.
If a ``dict`` *keyring* is specified but a *keyname* is not, the key
used will be the first key in the *keyring*. Note that the order of
keys in a dictionary is not defined, so applications should supply a
keyname when a ``dict`` keyring is used, unless they know the keyring
contains only one key. If a ``callable`` keyring is specified, the
callable will be called with the message and the keyname, and is
expected to return a key.
*keyname*, a ``dns.name.Name``, ``str`` or ``None``, the name of
this TSIG key to use; defaults to ``None``. If *keyring* is a
``dict``, the key must be defined in it. If *keyring* is a
``dns.tsig.Key``, this is ignored.
*fudge*, an ``int``, the TSIG time fudge.
*original_id*, an ``int``, the TSIG original id. If ``None``,
the message's id is used.
*tsig_error*, an ``int``, the TSIG error code.
*other_data*, a ``bytes``, the TSIG other data.
*algorithm*, a ``dns.name.Name`` or ``str``, the TSIG algorithm to use. This is
only used if *keyring* is a ``dict``, and the key entry is a ``bytes``.
Nr � )ry r? rH �Keyrv �callabler� r� �next�iter�bytesrG r= r� r� � mac_sizes) r rG r� r� r� r� r� r� r� r r r �use_tsigl s2 /
�zMessage.use_tsigc C s | j r| j jS d S r )rH rv r" r r r r� � � zMessage.keynamec C � | j r | j d jS d S rU )rH r� r" r r r � keyalgorithm� � zMessage.keyalgorithmc C r� rU )rH r� r" r r r r� � r� z Message.macc C r� rU )rH r� r" r r r r� � r� zMessage.tsig_errorc C s
t | j�S r )�boolrH r" r r r �had_tsig� s
zMessage.had_tsigc C s4 t jjj�|t jj|p d�}t j�t jjt | �|�S )Nr )
r? r� r� �OPTr� rx r� rv �rootr: )rB rn ro rD r r r � _make_opt� s zMessage._make_optrk rl rn rE ro rF c C s� |du s|du r d}n|du rd}|dk r d| _ d| _dS |dM }||d> O }|du r-g }| �|||�| _ |du r;|}|| _|| _dS )a' Configure EDNS behavior.
*edns*, an ``int``, is the EDNS level to use. Specifying ``None``, ``False``,
or ``-1`` means "do not use EDNS", and in this case the other parameters are
ignored. Specifying ``True`` is equivalent to specifying 0, i.e. "use EDNS0".
*ednsflags*, an ``int``, the EDNS flag values.
*payload*, an ``int``, is the EDNS sender's payload field, which is the maximum
size of UDP datagram the sender can handle. I.e. how big a response to this
message can be.
*request_payload*, an ``int``, is the EDNS payload size to use when sending this
message. If not specified, defaults to the value of *payload*.
*options*, a list of ``dns.edns.Option`` objects or ``None``, the EDNS options.
*pad*, a non-negative ``int``. If 0, the default, do not pad; otherwise add
padding bytes to make the message size a multiple of *pad*. Note that if
padding is non-zero, an EDNS PADDING option will always be added to the
message.
NFre Tr l �~ r; )rD rE r� rF )r rk rl rn rE ro rF r r r �use_edns� s
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| jd@ d? S dS )Ni � r; re )rD rl r" r r r rk s z Message.ednsc C s | j r| j jS dS rU )rD �ttlr" r r r rl r� zMessage.ednsflagsc C s* | j r || j _d S |r| �|�| _ d S d S r )rD r� r� rV r r r rl s
�c C s | j r | j d jS dS rU )rD rn r" r r r rn # r� zMessage.payloadc C s | j r | j d jS dS )Nr r )rD ro r" r r r ro * r� zMessage.options�wantedc C s< |r
| j tjjO _ dS | jr | j tjj M _ dS dS )a! Enable or disable 'DNSSEC desired' flag in requests.
*wanted*, a ``bool``. If ``True``, then DNSSEC data is
desired in the response, EDNS is enabled if required, and then
the DO bit is set. If ``False``, the DO bit is cleared if
EDNS is enabled.
N)rl r? rB �DOrD )r r� r r r � want_dnssec1 s
�zMessage.want_dnssecc C s t j�t| j�t| j��S )zBReturn the rcode.
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)r? rj r� r: rB rl r" r r r rj ? s z
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*rcode*, a ``dns.rcode.Rcode``, is the rcode to set.
i� i��� N)r? rj �to_flagsrB rl )r rj �value�evaluer r r � set_rcodeF s
zMessage.set_rcodec C s t j�t| j��S )zEReturn the opcode.
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)r? ri r� r: rB r" r r r ri Q s zMessage.opcoderi c C s( | j dM _ | j tj�|�O _ dS )zZSet the opcode.
*opcode*, a ``dns.opcode.Opcode``, is the opcode to set.
i�� N)rB r? ri r� )r ri r r r �
set_opcodeX s zMessage.set_opcodec C s |S r r )r r� r r r �_get_one_rr_per_rrset` r0 z Message._get_one_rr_per_rrsetc C s ||d dfS �NFr )r r} rv r� r� r r r �_parse_rr_headerf r� zMessage._parse_rr_headerc C sl |t jjkr|tjks| js|t jjkrt�n|t jj kr0|tjks.|t jj
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where rrset is not ``None``).
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use if caching the data. It is the smallest of all the CNAME TTLs
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minimum values for negative answers.
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multi: Is this message part of a multi-message sequence?
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section.
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*idna_codec*, a ``dns.name.IDNACodec``, specifies the IDNA
encoder/decoder. If ``None``, the default IDNA 2003 encoder/decoder
is used.
*one_rr_per_rrset*, a ``bool``. If ``True``, then each RR is put
into its own rrset. The default is ``False``.
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is used.
*one_rr_per_rrset*, a ``bool``. If ``True``, then each RR is put
into its own rrset. The default is ``False``.
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qname, a ``dns.name.Name`` or ``str``, the query name.
*rdtype*, an ``int`` or ``str``, the desired rdata type.
*rdclass*, an ``int`` or ``str``, the desired rdata class; the default
is class IN.
*use_edns*, an ``int``, ``bool`` or ``None``. The EDNS level to use; the
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parameters (*ednsflags*, *payload*, *request_payload*, or *options*) are
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values for use_edns and their meanings.
*want_dnssec*, a ``bool``. If ``True``, DNSSEC data is desired.
*ednsflags*, an ``int``, the EDNS flag values.
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maximum size of UDP datagram the sender can handle. I.e. how big
a response to this message can be.
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sending this message. If not specified, defaults to the value of
*payload*.
*options*, a list of ``dns.edns.Option`` objects or ``None``, the EDNS
options.
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encoder/decoder. If ``None``, the default IDNA 2003 encoder/decoder
is used.
*id*, an ``int`` or ``None``, the desired query id. The default is
``None``, which generates a random query id.
*flags*, an ``int``, the desired query flags. The default is
``dns.flags.RD``.
*pad*, a non-negative ``int``. If 0, the default, do not pad; otherwise add
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message.
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*query*, a ``dns.message.Message``, the query to respond to.
*recursion_available*, a ``bool``, should RA be set in the response?
*our_payload*, an ``int``, the payload size to advertise in EDNS
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*tsig_error*, an ``int``, the TSIG error.
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