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o ;j�; � @ s` d dl Z d dlZd dlZd dlZd dlmZ d dlmZ d dlmZ d dl m Z d dl m Z d dl m Z d dl m Z d d lmZ d d lmZ d d lmZ d d lmZ d d lmZ d dlmZ d dlmZ d dlmZ g d�Zejeej d�Z ej Z ej Z dZ dZ!dZ"G dd� de#�Z$G dd� de$�Z%G dd� de%�Z&e&� Z'G d d � d e%�Z(G d d � d e(�Z)G d d!� d!e%�Z*G d"d#� d#e%�Z+G d$d%� d%e%�Z,G d&d'� d'e%�Z-G d(d)� d)e%�Z.G d*d+� d+e%�Z/G d,d-� d-e$�Z0G d.d/� d/e0�Z1G d0d1� d1e1�Z2G d2d3� d3e2�Z3G d4d5� d5e2�Z4G d6d7� d7e1�Z5G d8d9� d9e5�Z6G d:d;� d;e5�Z7G d<d=� d=e1�Z8G d>d?� d?e%�Z9G d@dA� dAe+�Z:G dBdC� dCe+�Z;G dDdE� dEe+�Z<G dFdG� dGe+�Z=G dHdI� dIe+�Z>G dJdK� dKe+�Z?G dLdM� dMe+�Z@G dNdO� dOe+�ZAG dPdQ� dQe+�ZBG dRdS� dSe+�ZCG dTdU� dUe+�ZDG dVdW� dWe+�ZEG dXdY� dYe+�ZFG dZd[� d[e+�ZGi ejHjIe(� �ejJjIe)� �ejKjIe*� �ejLjIe+� �ejMjIe,� �ejNjIe-� �ejOjIe.� �ejPjIe(� �ejQjIe/� �ejRjIe2� �ejSjIe5� �ejTjIe8� �ejUjIe:� �ejVjIe;� �ejWjIe<� �ejXjIe=� �ejYjIe>� �ejZjIe?� ej[jIe@� ej\jIeA� ej]jIeB� ej^jIeC� ej_jIeD� ej`jIeE� ejajIeF� ejbjIeG� i �ZcejSjde6� ejejde7� ejRjde3� ejfjde4� ejTjde8� ejgjde9� iZhec�i� D ] Zjejjkdu�rsejjkjljdZdeddu�rsedehv�rsejehed< �qXd\d]� emd^�D �\ ZnZoZpZqZrZsZtZuZvZwexd_�ZyG d`da� dae#�ZzG dbdc� dce#�Z{G ddde� dee#�Z|e|� Z}dfe~fdgdh�ZdS )i� N)�debug)�error)�eoo)�asSeekableStream)� isEndOfStream)�peekIntoStream��readFromStream)�_MISSING)� PyAsn1Error)�base)�char)�tag)�tagmap)�univ)�useful)�StreamingDecoder�Decoder�decode)�flags� �d � c @ s8 e Zd ZdZ ddd�Z ddd�Zedd� �ZdS ) �AbstractPayloadDecoderNc K � t �d|f ��)ztDecode value with fixed byte length. The decoder is allowed to consume as many bytes as necessary. z(SingleItemDecoder not implemented for %s�r r � �self� substrate�asn1Spec�tagSet�length�state� decodeFun� substrateFun�options� r& �L/opt/saltstack/salt/lib/python3.10/site-packages/pyasn1/codec/ber/decoder.py� valueDecoder0 � z#AbstractPayloadDecoder.valueDecoderc K r )zsDecode value with undefined length. The decoder is allowed to consume as many bytes as necessary. z5Indefinite length mode decoder not implemented for %sr r r& r& r' �indefLenValueDecoder: r) z+AbstractPayloadDecoder.indefLenValueDecoderc C s d|vr| |d< |S )N� asn1Objectr& )r+ r% r& r& r' �_passAsn1ObjectD s z&AbstractPayloadDecoder._passAsn1Object�NNNNN)�__name__� __module__� __qualname__�protoComponentr( r* � staticmethodr, r& r& r& r' r - s � � r c @ s e Zd Zedd� �Zdd� ZdS )� AbstractSimplePayloadDecoderc c s � t |||�D ]}|V qd S �Nr )r+ r r! r% �chunkr& r& r' �substrateCollectorM s ��z/AbstractSimplePayloadDecoder.substrateCollectorc K s< |� d�r|S |d u r| jj||d�S |tu r|S |�|�S )NZnative�r )�getr1 �clone�noValue�r r r �valuer% r& r& r' �_createComponentR s z-AbstractSimplePayloadDecoder._createComponentN)r. r/ r0 r2 r6 r= r& r& r& r' r3 L s r3 c @ s2 e Zd Ze�d�Z ddd�Z ddd�ZdS )�RawPayloadDecoder� Nc k s` � |r | j ||dfi |��} || |||�D ]} | V qd S |||||fi |��D ]} | V q(d S )Nr? )r= � r r r r r! r" r# r$ r% r+ r5 r< r& r& r' r( ` s ��z RawPayloadDecoder.valueDecoderc k st � |r | j ||dfi |��} || |||�D ]} | V qd S |||||fddi|��D ] } | tju r5 d S | V q+q )Nr? T�allowEoo)r= r � endOfOctetsr@ r& r& r' r* o s$ ��� � �z&RawPayloadDecoder.indefLenValueDecoderr- �r. r/ r0 r �Anyr1 r( r* r& r& r& r' r> ] s ��r> c @ �$ e Zd Ze�d�Z ddd�ZdS )�IntegerPayloadDecoderr Nc k sx � |d j tjkrt�d��t|||�D ] } t| t�r | V q| r,tj t | �ddd�} nd} | j ||| fi |��V d S )Nr �Simple tag format expected�bigT)Zsigned) � tagFormatr �tagFormatSimpler r r � isinstance�SubstrateUnderrunError�int� from_bytes�bytesr= ) r r r r r! r" r# r$ r% r5 r< r& r& r' r( � s � � z"IntegerPayloadDecoder.valueDecoderr- )r. r/ r0 r �Integerr1 r( r& r& r& r' rF � � �rF c @ s e Zd Ze�d�Zdd� ZdS )�BooleanPayloadDecoderr c K s t j| |||r dp dfi |��S )N� r )rF r= r; r& r& r' r= � s ��z&BooleanPayloadDecoder._createComponentN)r. r/ r0 r �Booleanr1 r= r& r& r& r' rR � s rR c @ �6 e Zd Ze�d�ZdZ ddd�Z ddd�ZdS ) �BitStringPayloadDecoderr& TNc k s� � |r | j ||tfi |��} || |||�D ]} | V qd S |s$t�d��t|�D ] } t| t�r2| V q(| r:t�d��|d jtj kr�t |d|�D ] } t| t�rR| V qHt | �} | dkrbt�d| ��t ||d |�D ] } t| t�rt| V qj| j j | d| d�} | j ||| fi |��V d S | js�t�d| jj ��tr�td � | j}| j j d dd �} |�� }|�� | |k r�||| j fd |i|��D ] }t|t�r�|V q�|d } | dkr�t�d| ��| j j |dd � d| | d �} |�� | |k s�| j ||| fi |��V d S )NzEmpty BIT STRING substrater rS � �Trailing bits overflow %sT)�internalFormat�padding�*Constructed encoding form prohibited at %s�$assembling constructed serialization� �rY r$ �rY ZprependrZ )r= r: r r r rK rL rI r rJ r �ordr1 �fromOctetString�supportConstructedForm� __class__r. �LOGr6 �tell)r r r r r! r" r# r$ r% r+ r5 � trailingBitsr< � bitStringZcurrent_position� componentr& r& r' r( � s� � � �� ����� � �� �� z$BitStringPayloadDecoder.valueDecoderc k s� � |r | j ||tfi |��} || |||�D ]} | V qd S | j}| jjddd�} ||| jf|dd�|��D ]} | tju r? n t| t�rG| V q6| tju rNn | d } | dkr]t � d| ��| jj| dd � d| | d �} q)| j ||| fi |��V d S ) Nr] Tr^ �r$ rA r rW rX rS r_ ) r= r: r6 r1 ra r rB rK rL r r )r r r r r! r" r# r$ r% r+ r5 rg rh rf r& r& r' r* � sF ��� � � � �� z,BitStringPayloadDecoder.indefLenValueDecoderr- ) r. r/ r0 r � BitStringr1 rb r( r* r& r& r& r' rV � s �Q�rV c @ rU ) �OctetStringPayloadDecoderr? TNc k s0 � |r | j ||tfi |��} || |||�D ]} | V qd S |d jtjkrDt|||�D ] } t| t�r5| V q+| j ||| fi |��V d S | jsPt � d| j j ��t rVt d� | j}d} |�� } |�� | |k r�||| jfd|i|��D ] } t| t�r}| V qs| | 7 } |�� | |k sg| j ||| fi |��V d S )Nr r[ r\ r] r$ )r= r: rI r rJ r rK rL rb r r rc r. rd r6 re r1 )r r r r r! r" r# r$ r% r+ r5 �header�original_positionrh r& r& r' r( 0 sD � ��� � �� z&OctetStringPayloadDecoder.valueDecoderc k s� � |r"|| j ur"| j||tfi |��} || |||�D ]} | V qd S | j }d} ||| jf|dd�|��D ]} t| t�r?| V | tju rF nq5| tju rMn| | 7 } q(| j||| fi |��V d S )Nr] Tri )r6 r= r: r1 rK rL r rB ) r r r r r! r" r# r$ r% r+ r5 rl rh r& r& r' r* ] s6 ��� � � � z.OctetStringPayloadDecoder.indefLenValueDecoderr- ) r. r/ r0 r � OctetStringr1 rb r( r* r& r& r& r' rk , s �.�rk c @ rE )�NullPayloadDecoderr? Nc k sp � |d j tjkrt�d��t|||�D ] } t| t�r | V q| j||dfi |��} | r3t�d| ��| V d S )Nr rG r? z&Unexpected %d-octet substrate for Null) rI r rJ r r r rK rL r= ) r r r r r! r" r# r$ r% r5 rh r& r& r' r( � s � � z NullPayloadDecoder.valueDecoderr- )r. r/ r0 r �Nullr1 r( r& r& r& r' ro � rQ ro c @ rE )� ObjectIdentifierPayloadDecoderr& Nc k s� � |d j tjkrt�d��t|||�D ] } t| t�r | V q| s&t�d��d} d} t| �} | | k r�| | } | d7 } | dk rD| | f7 } nR| dkr�| }d} d}|dkr�|d7 }|t krct�dt | f ��| d> |d @ } | | krwt�d | f ��| | }| d7 } |dksR| | d> | f7 } n | dkr�t�d ��| | k s2d| d kr�d kr�n nd | } n;d| d kr�dkr�n nd| d d f| dd � } n | d dkr�d| d d f| dd � } n t�d| d ��| j ||| fi |��V d S )Nr rG �Empty substrater& rS � zEOID arc exceeds maximum continuation octets limit (%d) at position %drW � �#Short substrate for sub-OID past %sz"Invalid octet 0x80 in OID encoding�' )r �( �O �P � z Malformed first OID octet: %s� rI r rJ r r r rK rL �len� MAX_OID_ARC_CONTINUATION_OCTETSr= )r r r r r! r" r# r$ r% r5 �oid�index� substrateLen�subId� nextSubId�continuationOctetCountr& r& r' r( � sb � � ���� � ! z+ObjectIdentifierPayloadDecoder.valueDecoderr- )r. r/ r0 r �ObjectIdentifierr1 r( r& r& r& r' rq � rQ rq c @ rE )�RelativeOIDPayloadDecoderr& Nc k sP � |d j tjkrt�d��t|||�D ] } t| t�r | V q| s&t�d��d} d} t| �} | | k r�| | } | d7 } | dk rD| | f7 } nR| dkr�| }d} d}|dkr�|d7 }|t krct�dt | f ��| d> |d @ } | | krwt�d | f ��| | }| d7 } |dksR| | d> | f7 } n | dkr�t�d ��| | k s2| j ||| fi |��V d S ) Nr rG rr r& rS rs zNRELATIVE-OID arc exceeds maximum continuation octets limit (%d) at position %drW rt ru z+Invalid octet 0x80 in RELATIVE-OID encodingr{ )r r r r r! r" r# r$ r% r5 Zreloidr r� r� r� r� r& r& r' r( � sT � � ���� � z&RelativeOIDPayloadDecoder.valueDecoderr- )r. r/ r0 r � RelativeOIDr1 r( r& r& r& r' r� � rQ r� c @ s" e Zd Ze�� Z ddd�ZdS )�RealPayloadDecoderNc k s� � |d j tjkrt�d��t|||�D ] } t| t�r | V q| s/| j||dfi |��V d S | d } | dd � } | d@ r�| sDt�d��t rJt d� | d@ d } | d kr^| d } | dd � } | d | � | | d � } } | ro| stt�d ��| d d@ r|d p}d} | r�| d K } | | d O } | dd � } | s�| d ? d@ }|d kr�t�d��|dkr�| d9 } n|d kr�| d 9 } d}| r�|d K }|| d O }| dd � } | s�| d@ r�| }| d ? d@ }|d | 9 }|d | f}nn| d@ r�t r�t d� | d@ r�dp�d}n[| d@ dk�rH| �st�d��t �r t d� z0| d@ dk�rt | �ddf}n | d@ d k�r&t | �}n| d@ dk�r2t | �}nt�d| ��W n t �yG t�d��w t�d| ��| j|||fi |��V d S )Nr rG g rS rs z Incomplete floating-point valuez decoding binary encoded REAL� � zReal exponent screwed���r rz zIllegal Real base�@ zdecoding infinite REALz-inf�inf� z decoding character encoded REAL� zUnknown NR (tag %s)zBad character Real syntaxzUnknown encoding (tag %s)) rI r rJ r r r rK rL r= rd rM �float� ValueError)r r r r r! r" r# r$ r% r5 �fo�n�eo�e�b�pZsfr< r& r& r' r( s� � � � � ����� z RealPayloadDecoder.valueDecoderr- )r. r/ r0 r �Realr1 r( r& r& r& r' r� s �r� c @ s e Zd ZdZdS )�!AbstractConstructedPayloadDecoderN)r. r/ r0 r1 r& r& r& r' r� s r� c @ sN e Zd ZdZdZdd� Zdd� Z d dd�Z d dd �Z d d d �Z dS )� ConstructedPayloadDecoderBaseNc C � t �r4 ��NotImplementedError)r r+ �idxr& r& r' �_getComponentTagMap� � z1ConstructedPayloadDecoderBase._getComponentTagMapc C r� r4 r� )r r+ r r� r& r& r' �_getComponentPositionByType� r� z9ConstructedPayloadDecoderBase._getComponentPositionByTypec k s � d }g }t � }|�� } |dks|�� | | k ri||fi |��D ] } t| t�r*| V q |dkr5| tju r5n4|�| � |�| j� t |�dkrJ| j } n| j } | j t j| jjg|j�R � d�}|dks|�� | | k strqtd| � t|�D ]\} } |j| | dddd� qu|V d S )Nr� rS r7 z@guessed %r container type (pass `asn1Spec` to guide the decoder)F��verifyConstraints� matchTags�matchConstraints)�setre rK rL r rB �append�addr r| �protoRecordComponent�protoSequenceComponentr9 r �TagSet�baseTagZ superTagsrd � enumerate�setComponentByPosition) r r r r# r! r% r+ � componentsZcomponentTypesrm rh r1 r� r& r& r' �_decodeComponentsSchemaless� s@ � � ���� z9ConstructedPayloadDecoderBase._decodeComponentsSchemalessc k s� � |d j tjkrt�d��|�� } |r?|d ur |�� } n| jd ur*| jj|d�} n| j| j f} || |||�D ]} | V q7d S |d u r�| j |f|||d�|��D ] } t | t �rZ| V qP|�� | | k r�t r�t||d�D ] } t | t �ru| V qkt dt| �t�| �f � | V d S |�� } | �� | �| |�}|jtjjtjjfv �r�|j} |jtjjk}| o�| j }t r�t d| r�dp�d |r�d p�d |f � t� }d}|�� | |k �rd| s�d }n6|r�| j}n0z |r�| | j }n| | j s�| | j r�| � |�}n| | j }W n t �y t�d |f ��w |||fi |��D ] }t |t ��r$|V �q|�sI| �rI|�r6| �!|j"�}n| | j �sB| | j �rI| �#|j"|�}| j$||d d d d � |�%|� |d7 }|�� | |k s�t �rmt d| � | �r�| j&�'|��s�t�d| j(j) ��| j*�r�|�+di �}t �r�t d� |�,� D ] \}}t d||f � �q�|�s�|�+dd ��r�t-| j.�D ]�\}}|j/�s��q�|j �r�| �0|�j1�sɐq�| �2|j/j3�}z|| }W nO t4�y% t �rt d| j(j)|j3| j(j)|j/j3f � |j/�,� D ] \}}t d||f � �q�z|j/| }W n t4�y" t �r t d|f � Y Y �q�w Y nw t �r1t d||f � | �0|�}|jtj5jtj6jfv �rqt-|�D ](\}} t7|| �8� �} || fd|i|��D ] }t |t ��rg|V �q\|||< �qF�q�t7| �0|��8� �} || fd|i|��D ] }t |t ��r�|V �q�| �$||� �q�nV| j9} | �r�t�d| j(j)� d���nD|j}t �r�t d| � d}|�� | |k �r�|||fi |��D ] }t |t ��r�|V �q�| j$||d d d d � |d7 }|�� | |k �s�| V d S ) Nr � Constructed tag format expectedr7 �r r# r! )�contextz)Unused trailing %d octets encountered: %s�5decoding %sdeterministic %s type %r chosen by type ID�non-r? �SET�"Excessive components decoded at %rFr� rS �seen component indices %s�,ASN.1 object %s has uninitialized components� openTypes� user-specified open types map:�%s -> %r�decodeOpenTypes�Jdefault open types map of component "%s.%s" governed by component "%s.%s":�1failed to resolve open type by governing value %r�+resolved open type %r by governing value %rr � ASN.1 object � is inconsistent�+decoding type %r chosen by given `asn1Spec`):rI r �tagFormatConstructedr r re r9 r1 r� r� r� rK rL rd r r| r �hexdump�clearr, �typeIdr �Sequence�Set� componentType�hasOptionalOrDefaultr� � tagMapUniquer+ � isOptional� isDefaulted�getTagMapNearPosition� IndexError�getPositionByType�effectiveTagSet�getPositionNearTyper� r� �requiredComponents�issubsetrc r. � hasOpenTypesr8 �itemsr� � namedTypes�openType�getComponentByPosition�isValue�getComponentByName�name�KeyError�SetOf� SequenceOfr �asOctets�isInconsistent) r r r r r! r" r# r$ r% rm r+ r5 Ztrailingr� � isSetType�isDeterministic� seenIndicesr� r� rh r� �k�v� namedType�governingValuer� �containerValue�pos�containerElement�stream� inconsistencyr& r& r' r( � sh � �� � � �� � ��� � � �+ �� � ������� � � � � ���� ��� z*ConstructedPayloadDecoderBase.valueDecoderc k s� � |d j tjkrt�d��|d ur=|d ur|�� } n| jd ur(| jj|d�} n| j| jf} || |||�D ]} | V q5d S |d u rb| j |f|||d�t |dd���D ] } t | t �r\| V qR| V d S |�� } | � � | �| |�}|jtjjtjjfv �r�| j} | jtjjk} | o�| j } tr�td| r�dp�d | r�d p�d |f � t� }d} t| �|kr�d }n5| r�| j}n/z | r�| | j}n| | js�| | jr�| � |�}n| | j}W n t y� t�d | f ��w |||fd di|��D ]}t |t �r�|V |t j u �r nq�|t j u �r n7| �s-| �r-| �r| � |j!�}n| | j�s&| | j�r-| �"|j!|�}| j#||d d d d� |�$|� |d7 }q�t�rJtd| � | �r�| j%�&|��s]t�d| j'j( ��| j)�r�|�*di �}t�r�td� |�+� D ] \}}td||f � �qr|�s�|�*dd ��r�t,| j-�D ]�\}}|j.�s��q�|j�r�| �/|�j0�s��q�| �1|j.j2�}z|| }W nO t3�y t�r�td| j'j(|j2| j'j(|j.j2f � |j.�+� D ] \}}td||f � �q�z|j.| }W n t3�y� t�r�td|f � Y Y �q�w Y nw t�rtd||f � | �/|�}|jtj4jtj5jfv �rZt,|�D ]4\}}t6|| �7� �}||fd|it |dd���D ]}t |t ��rH|V |t j u �rP n�q=|||< �q#�q�t6| �/|��7� �}||fd|it |dd���D ]}t |t ��r||V |t j u �r� n| �#||� �qq�q�nX| j8}|�r�t�d| j'j(� d���nF|j} t�r�td | � d} ||| fd di|��D ]}t |t ��r�|V |t j u �r� n�q�|t j u �r�n| j#||d d d d� |d7 }�q�| V d S ) Nr r� r7 r� T�rA r� r� r? r� r� rA Fr� rS r� r� r� r� r� r� r� r� r� r r� r� r� )9rI r r� r r r9 r1 r� r� r� �dictrK rL r� r, r� r r� r� r� r� rd r� r| r� r+ r� r� r� r� r rB r� r� r� r� r� r� r� rc r. r� r8 r� r� r� r� r� r� r� r� r� r� r� r r� r� ) r r r r r! r" r# r$ r% r+ r5 r� r� r� r� r� rh r� r� r� r� r� r� r� r� r� r� r� r� r& r& r' r* � s~ � �� � � � � �� � � �2 �� � ������� � � � � � � ��� �� � � �� z2ConstructedPayloadDecoderBase.indefLenValueDecoder)NNNr- ) r. r/ r0 r� r� r� r� r� r( r* r& r& r& r' r� � s �4 � _�r� c @ � e Zd Ze�� Ze�� ZdS )�"SequenceOrSequenceOfPayloadDecoderN)r. r/ r0 r r� r� r� r� r& r& r& r' r� � � r� c @ � e Zd Ze�� ZdS )�SequencePayloadDecoderN)r. r/ r0 r r� r1 r& r& r& r' r� � � r� c @ r� )�SequenceOfPayloadDecoderN)r. r/ r0 r r� r1 r& r& r& r' r� � r� r� c @ r� )�SetOrSetOfPayloadDecoderN)r. r/ r0 r r� r� r� r� r& r& r& r' r� � r� r� c @ r� )�SetPayloadDecoderN)r. r/ r0 r r� r1 r& r& r& r' r� � r� r� c @ r� )�SetOfPayloadDecoderN)r. r/ r0 r r� r1 r& r& r& r' r� � r� r� c @ �0 e Zd Ze�� Z ddd�Z ddd�ZdS )�ChoicePayloadDecoderNc k s � |d u r | j j|d�} n|�� } |r"|| |||�D ]} | V qd S | �| |�}| j|krLtr6td|f � ||| jfi |��D ] } t| t�rJ| V q@n!trUtd|f � ||| j|||fi |��D ] } t| t�rl| V qb| j} trztd| | f � | j | | ddddd� | V d S )Nr7 z'decoding %s as explicitly tagged CHOICEz decoding %s as untagged CHOICE�*decoded component %s, effective tag set %sF�r� r� r� Z innerFlag) r1 r9 r, r rd ZcomponentTagMaprK rL r� �setComponentByType) r r r r r! r" r# r$ r% r+ r5 rh r� r& r& r' r( � sT � � � �� � � �� z!ChoicePayloadDecoder.valueDecoderc k s< � |d u r | j j|d�} n|�� } |r"|| |||�D ]} | V qd S | �| |�}| j|k} tr;td|| r6dp7df � | rN||| jjfi t|dd���} n||| jj|||fi t|dd���} | D ]-} t| t �rl| V | t j u rs n | j }tr�td| |f � | j || ddddd � | s� nqb| r�| t j u r�nq<| V d S ) Nr7 z decoding %s as %stagged CHOICEz explicitly ZunTr� r� Fr� )r1 r9 r, r rd r� r� r� rK rL r rB r� r� )r r r r r! r" r# r$ r% r+ r5 �isTagged�iteratorrh r� r& r& r' r* � sd � �� �� � ���� 'z)ChoicePayloadDecoder.indefLenValueDecoderr- )r. r/ r0 r �Choicer1 r( r* r& r& r& r' r� � s �4�r� c @ r� )�AnyPayloadDecoderNc k s � |d u rd} n|j tju r||jv} n||jk} | rJ|j} |�� } |�| tj � || | 7 }t rJt ||�D ] } t | t �r@| V q6t dt�| � � |rd|| j||tfi |��|||�D ]} | V q\d S t|||�D ] } t | t �rt| V qj| j||| fi |��V d S )NTz&decoding as untagged ANY, substrate %s)rc r �TagMap�tagMapr �markedPositionre �seek�os�SEEK_SETrd r rK rL r r� r= r: r ) r r r r r! r" r# r$ r% Z isUntagged� fullPosition�currentPositionr5 r& r& r' r( s> � ��� � z AnyPayloadDecoder.valueDecoderc k s� � |d u rd} n|j tju r||jv } n||jk} | r$d} tr#td� n,|j} |�� } |�| t j � t || | |�D ] } t | t �rD| V q:trPtdt�| � � | j}|rz|| jurz| j||tfi |��} || | | |t| � |�D ]} | V qrd S tr�td� | j} |||f|dd�|��D ]}t |t �r�|V |tju r� nq�|tju r�n| |7 } q�|r�| V d S | j||| fi |��V d S )NFr] zdecoding as tagged ANYz-decoding as untagged ANY, header substrate %sr\ Tri )rc r r r r rd r re r r r r rK rL r r� r1 r6 r= r: r| r rB )r r r r r! r" r# r$ r% r� r5 r r r+ rh r& r& r' r* G sp � � ������ � � � z&AnyPayloadDecoder.indefLenValueDecoderr- rC r& r& r& r' r s �*�r c @ r� )�UTF8StringPayloadDecoderN)r. r/ r0 r � UTF8Stringr1 r& r& r& r' r � r� r c @ r� )�NumericStringPayloadDecoderN)r. r/ r0 r � NumericStringr1 r& r& r& r' r � r� r c @ r� )� PrintableStringPayloadDecoderN)r. r/ r0 r �PrintableStringr1 r& r& r& r' r � r� r c @ r� )�TeletexStringPayloadDecoderN)r. r/ r0 r � TeletexStringr1 r& r& r& r' r � r� r c @ r� )� VideotexStringPayloadDecoderN)r. r/ r0 r �VideotexStringr1 r& r& r& r' r � r� r c @ r� )�IA5StringPayloadDecoderN)r. r/ r0 r � IA5Stringr1 r& r& r& r' r � r� r c @ r� )�GraphicStringPayloadDecoderN)r. r/ r0 r � GraphicStringr1 r& r& r& r' r � r� r c @ r� )�VisibleStringPayloadDecoderN)r. r/ r0 r � VisibleStringr1 r& r& r& r' r � r� r c @ r� )�GeneralStringPayloadDecoderN)r. r/ r0 r � GeneralStringr1 r& r& r& r' r � r� r c @ r� )� UniversalStringPayloadDecoderN)r. r/ r0 r �UniversalStringr1 r& r& r& r' r � r� r c @ r� )�BMPStringPayloadDecoderN)r. r/ r0 r � BMPStringr1 r& r& r& r' r � r� r c @ r� )� ObjectDescriptorPayloadDecoderN)r. r/ r0 r �ObjectDescriptorr1 r& r& r& r' r! � r� r! c @ r� )� GeneralizedTimePayloadDecoderN)r. r/ r0 r �GeneralizedTimer1 r& r& r& r' r# � r� r# c @ r� )�UTCTimePayloadDecoderN)r. r/ r0 r �UTCTimer1 r& r& r& r' r% � r� r% c C s g | ]}|�qS r& r& )�.0�xr& r& r' � <listcomp> s r) r� )r r c @ sF e Zd ZeZe� ZdZeZe Z e e fdd�Z ddde ddfdd�Z dS )�SingleItemDecoderTc K s8 |t ur|n| j| _|t ur|n| j| _i | _i | _d S r4 )r �TAG_MAP�_tagMap�TYPE_MAP�_typeMap� _tagCache� _tagSetCache)r r �typeMapZignoredr& r& r' �__init__ s zSingleItemDecoder.__init__Nc $ k s� � |� dd�} | tkrt�dt ��| d |d< |�dd�} tr+tdtj|||f � | rX| jrXt |d|�D ] } t | t �r@| V q6| t krQtrKtd � t jV d S |�d tj� | j} | j} | j}| j}t}|�� |_|tu�rE|tu �r,d }t |d|�D ] }t |t �r�|V q}t|�}z|| }W n` t y� |}|d @ }|d @ }|d@ }|dkr�d}d}d} t |d|�D ] }t |t �r�|V q�|s�t� d��t|�}|d7 }|dK }||d@ O }|d@ s�nq�t j |||d�}|r�|||< Y nw |d u �r |�rz|| }W n t �y t � d|�}|||< Y n w t � d|�}n|| }t }t�r,td| � |t u �r�t |d|�D ] }t |t ��rB|V �q7t|�}|dk �rP|}nX|dk�r�|d@ }|t!k�rgt�d|t!f ��t |||�D ] } t | t ��rx| V �qmt"| �} t#| �|k�r�t� d|t#| �|f ��d}| D ] } |dK }|| O }�q�|d7 }nd}|dk�r�| j�s�t�d��t$}t�r�td| � |t$u �r�|d u �r�t%}nt&}|t%u �r9z| | } W n t �y� d } Y nw | �r�t'}n z | |d d� } W n t �y d } Y nw | �r t'}nt(}t�r9td | �r| j)j*�pd |t'u �r#d �p$d f � tj�+| d u �r3d �p7| j,j)j*� |t&u �rE|j)t-j.u �r�z|| } W n t �yW d } Y nw t�r�td!� |j/�0� D ]\}} td"|| j)j*f � �qd|j1�r�td#� |j1�0� D ]\}} td"|| j)j*f � �q�td$| d u �r�d �p�| �2� |f � n ||j3k�s�||j4v �r�|} t�r�td%|j)j* � nd } | d u�rz| | j5 } t�r�td&| j5f � W n1 t �y t � | j3j6| j3j6�}!z| |! } t�r�td'|!f � W n t �y d } Y nw Y nw | �r| }t'}nt(}nd } t(}t�rEtd(|t'u �r'| j)j*�p(d |t'u �r0d �p1d f � tj�+| d u �r@d �pC| j)j*� |t'u �r�|� d)d ��sX|�sXd*d+� }|�� }"|dk�r~| j7||||t$| |fi |��D ] }t |t ��r{|V �qpnB| j8||||t$| |fi |��D ] }t |t ��r�|V �q�|�� |" }#|�s�|#|k�r�td,|#|f ��|�r�|#|k�r�td-|#|f ��t�r�td.| j)j*|j)j*t |t9j:��r�|�;� �p�|f � t}nf|t(u �r |�r�|d j<t j=k�r�|d j>t j?k�r�t@} t'}nd } | jA}t�r td/| �r| j)j*�pd |t'u �rd �pd0f � |tBu �r3| jC} t�r1td1| j)j* � t'}|tDu �rAt�d2||f ��|tuspt�rTtj�� td3tj � |V d S )4N� _nestingLevelr z0ASN.1 structure nesting depth exceeds limit (%d)rS rA FzWdecoder called at scope %s with state %d, working with up to %s octets of substrate: %srz z end-of-octets sentinel found���Tr� � � z'Short octet stream on long tag decodingrW rt rs )�tagClassrI �tagIdr& z$tag decoded into %s, decoding lengthz+BER length field size %d exceeds limit (%d)z %s<%s at %sr r� z6Indefinite length encoding not supported by this codecz value length decoded into %dz/codec %s chosen by a built-in type, decoding %sz<none>r< zas explicit tag�?z!candidate ASN.1 spec is a map of:z %s -> %szbut neither of: z,new candidate ASN.1 spec is %s, chosen by %szcandidate ASN.1 spec is %sz8value decoder chosen for an ambiguous type by type ID %sz value decoder chosen by base %sz*codec %s chosen by ASN.1 spec, decoding %sZ recursiveFlagc s s � | V dS )ae Legacy hack to keep the recursiveFlag=False option supported. The decode(..., substrateFun=userCallback) option was introduced in 0.1.4 as a generalization of the old recursiveFlag=False option. Users should pass their callback instead of using recursiveFlag. Nr& )r+ � _substrateZ_length�_optionsr& r& r' r$ 7 s � z0SingleItemDecoder.__call__.<locals>.substrateFunz%Read %s bytes instead of expected %s.z(Read %s bytes are more than expected %s.z&codec %s yields type %s, value: %s ...z codec %s chosen, decoding %sz as failurez codec %s chosen, decoding valuez%s not in asn1Spec: %rz%decoder left scope %s, call completed)Er8 �MAX_NESTING_DEPTHr r �poprd r Zscope�supportIndefLengthr rK rL � EOO_SENTINELr rB r r �SEEK_CURr, r. r/ r0 r: re r �stStop� stDecodeTagr` r� r ZTagr� �stDecodeLength�MAX_LENGTH_OCTETS�listr| �stGetValueDecoder�stGetValueDecoderByTag�stGetValueDecoderByAsn1Spec� stDecodeValue�stTryAsExplicitTagrc r. �pushr1 r r Z presentTypesr� Z skipTypesZprettyPrintTyper r r� r� r* r( r ZAsn1ItemZ prettyPrintrI r� r7 ZtagClassUniversal�rawPayloadDecoder�defaultErrorState�stDumpRawValue�defaultRawDecoder�stErrorCondition)$r r r r r! r" r# r$ r% r3 rA Z eoo_candidater r1 ZtagCacheZ tagSetCacher< Z isShortTagZ firstByteZ firstOctetZlastTagZ integerTagr7 rI r8 ZlengthOctetIdxZ integerByte�sizeZ encodedLengthZ lengthOctetZconcreteDecoderZ chosenSpecr� Z baseTagSetrm Z bytesReadr& r& r' �__call__ s � � � � � �� ���� % � � �� �� ��0" �$�� ����� 4 � � ��� � � � � � 0 � � �� 4 zSingleItemDecoder.__call__)r. r/ r0 rP rM r rO r> r+ r- r r2 rB rR r& r& r& r' r* s �r* c @ s& e Zd ZdZeZddd�Zdd� ZdS )r a� Create an iterator that turns BER/CER/DER byte stream into ASN.1 objects. On each iteration, consume whatever BER/CER/DER serialization is available in the `substrate` stream-like object and turns it into one or more, possibly nested, ASN.1 objects. Parameters ---------- substrate: :py:class:`file`, :py:class:`io.BytesIO` BER/CER/DER serialization in form of a byte stream Keyword Args ------------ asn1Spec: :py:class:`~pyasn1.type.base.PyAsn1Item` A pyasn1 type object to act as a template guiding the decoder. Depending on the ASN.1 structure being decoded, `asn1Spec` may or may not be required. One of the reasons why `asn1Spec` may me required is that ASN.1 structure is encoded in the *IMPLICIT* tagging mode. Yields ------ : :py:class:`~pyasn1.type.base.PyAsn1Item`, :py:class:`~pyasn1.error.SubstrateUnderrunError` Decoded ASN.1 object (possibly, nested) or :py:class:`~pyasn1.error.SubstrateUnderrunError` object indicating insufficient BER/CER/DER serialization on input to fully recover ASN.1 objects from it. In the latter case the caller is advised to ensure some more data in the input stream, then call the iterator again. The decoder will resume the decoding process using the newly arrived data. The `context` property of :py:class:`~pyasn1.error.SubstrateUnderrunError` object might hold a reference to the partially populated ASN.1 object being reconstructed. Raises ------ ~pyasn1.error.PyAsn1Error, ~pyasn1.error.EndOfStreamError `PyAsn1Error` on deserialization error, `EndOfStreamError` on premature stream closure. Examples -------- Decode BER serialisation without ASN.1 schema .. code-block:: pycon >>> stream = io.BytesIO( ... b'0 ') >>> >>> for asn1Object in StreamingDecoder(stream): ... print(asn1Object) >>> SequenceOf: 1 2 3 Decode BER serialisation with ASN.1 schema .. code-block:: pycon >>> stream = io.BytesIO( ... b'0 ') >>> >>> schema = SequenceOf(componentType=Integer()) >>> >>> decoder = StreamingDecoder(stream, asn1Spec=schema) >>> for asn1Object in decoder: ... print(asn1Object) >>> SequenceOf: 1 2 3 Nc K s, | j di |��| _t|�| _|| _|| _d S )Nr& )�SINGLE_ITEM_DECODER�_singleItemDecoderr r: � _asn1Specr; )r r r r% r& r& r' r2 � s zStreamingDecoder.__init__c c sT � | j | j| jfi | j��D ]}|V qt| j�D ] }t|t�r$d V |r)d S qr4 )rT r: rU r; r rK rL )r r+ r5 r& r& r' �__iter__� s �� � �zStreamingDecoder.__iter__r4 )r. r/ r0 �__doc__r* rS r2 rV r& r& r& r' r � s J r c @ s. e Zd ZdZeZeddd��Zedd� �Z dS )r znCreate a BER decoder object. Parse BER/CER/DER octet-stream into one, possibly nested, ASN.1 object. Nc s� t |�}d|v r|d � d� fdd� }||d< | j||fi |��}|D ]&}t|t�r/t�d��ztt|��}W n tjyC d}Y nw ||f S dS )a. Turns BER/CER/DER octet stream into an ASN.1 object. Takes BER/CER/DER octet-stream in form of :py:class:`bytes` and decode it into an ASN.1 object (e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative) which may be a scalar or an arbitrary nested structure. Parameters ---------- substrate: :py:class:`bytes` BER/CER/DER octet-stream to parse Keyword Args ------------ asn1Spec: :py:class:`~pyasn1.type.base.PyAsn1Item` A pyasn1 type object (:py:class:`~pyasn1.type.base.PyAsn1Item` derivative) to act as a template guiding the decoder. Depending on the ASN.1 structure being decoded, `asn1Spec` may or may not be required. Most common reason for it to require is that ASN.1 structure is encoded in *IMPLICIT* tagging mode. substrateFun: :py:class:`Union[ Callable[[pyasn1.type.base.PyAsn1Item, bytes, int], Tuple[pyasn1.type.base.PyAsn1Item, bytes]], Callable[[pyasn1.type.base.PyAsn1Item, io.BytesIO, int, dict], Generator[Union[pyasn1.type.base.PyAsn1Item, pyasn1.error.SubstrateUnderrunError], None, None]] ]` User callback meant to generalize special use cases like non-recursive or partial decoding. A 3-arg non-streaming variant is supported for backwards compatiblilty in addition to the newer 4-arg streaming variant. The callback will receive the uninitialized object recovered from substrate as 1st argument, the uninterpreted payload as 2nd argument, and the length of the uninterpreted payload as 3rd argument. The streaming variant will additionally receive the decode(..., **options) kwargs as 4th argument. The non-streaming variant shall return an object that will be propagated as decode() return value as 1st item, and the remainig payload for further decode passes as 2nd item. The streaming variant shall yield an object that will be propagated as decode() return value, and leave the remaining payload in the stream. Returns ------- : :py:class:`tuple` A tuple of :py:class:`~pyasn1.type.base.PyAsn1Item` object recovered from BER/CER/DER substrate and the unprocessed trailing portion of the `substrate` (may be empty) Raises ------ : :py:class:`~pyasn1.error.PyAsn1Error` :py:class:`~pyasn1.error.SubstrateUnderrunError` on insufficient input or :py:class:`~pyasn1.error.PyAsn1Error` on decoding error. Examples -------- Decode BER/CER/DER serialisation without ASN.1 schema .. code-block:: pycon >>> s, unprocessed = decode(b'0 ') >>> str(s) SequenceOf: 1 2 3 Decode BER/CER/DER serialisation with ASN.1 schema .. code-block:: pycon >>> seq = SequenceOf(componentType=Integer()) >>> s, unprocessed = decode( b'0 ', asn1Spec=seq) >>> str(s) SequenceOf: 1 2 3 r$ Nc 3 sx � z � | |||�}W n' t y1 } z|jjr� t|tj�s J �t�� | ||�}W Y d}~nd}~ww |D ]}|V q4dS )ar Support both 0.4 and 0.5 style APIs. substrateFun API has changed in 0.5 for use with streaming decoders. To stay backwards compatible, we first try if we received a streaming user callback. If that fails,we assume we've received a non-streaming v0.4 user callback and convert it for streaming on the fly N)� TypeError� __traceback__�tb_nextrK �io�BytesIOr �_callSubstrateFunV4asV5)r+ r r! r% Z substrate_gen�_valuer< �ZorigSubstrateFunr& r' �substrateFunWrapperE s � ���z-Decoder.__call__.<locals>.substrateFunWrapperzShort substrate on inputr] r4 )r �STREAMING_DECODERrK rL r �nextr ZEndOfStreamError)�clsr r r% r` ZstreamingDecoderr+ �tailr& r_ r' rR � s( P�� � �zDecoder.__call__c c sV � |� � }|dkr t|�}| |||�\}}|�|�}|�� |�| tj� |V d S )Nr� )�readr| �write�truncater r r@ )ZsubstrateFunV4r+ r r! Zsubstrate_bytesr< Z nextSubstrate�nbytesr& r& r' r] i s � z Decoder._callSubstrateFunV4asV5r4 ) r. r/ r0 rW r ra � classmethodrR r2 r] r& r& r& r' r � s xr �attrc C sB ddd�� | � }r tj| � d|� d�tdd� t� | S t| ��)Nr+ r- )r r1 z is deprecated. Please use z instead.rz )� stacklevel)r8 �warnings�warn�DeprecationWarning�globals�AttributeError)rj ZnewAttrr& r& r' � __getattr__� s rq )�r[ r �sysrl Zpyasn1r r Zpyasn1.codec.berr Zpyasn1.codec.streamingr r r r Z pyasn1.compatr Z pyasn1.errorr Z pyasn1.typer r r r r r �__all__ZregisterLoggeer. Z DEBUG_DECODERrd r: rL r} r< rD �objectr r3 r> rL rF rR rV rk ro rq r� r� r� r� r� r� r� r� r� r� r� r r r r r r r r r r r r r! r# r% rP r rT rj rn rp r� r� Z Enumeratedr� r� r� r r r r r r r r r r r r r" r$ r& r+ r� r� r� rD r- �valuesZ typeDecoderr1 rc �rangerB rC rF rH rG rJ rI rN rP rA rO r? r* r r r �strrq r& r& r& r' �<module> s" ) VA7n xy � � � � � � � � � � � � � � � � � � ! � � � {c C
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