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U e5d�N � @ s� d Z dddgZddlZddlZddlZddlZddlmZ ddlm Z m Z ddl m Z d Z d Ze�d �Ze�d ej�ZG d d� d�ZG dd� de�ZdZG dd� de�Zeeejd ��Zde Zej Z dS )z:Classes to generate plain text from a message object tree.� Generator�DecodedGenerator�BytesGenerator� N)�deepcopy)�StringIO�BytesIO)�_has_surrogates�_� z \r\n|\r|\nz^From c @ s� e Zd ZdZd'dd�dd�Zdd� Zd(d d �Zd d � Zd d� Zdd� Z dd� Z dd� Z dd� Z dd� Z dd� ZeZdd � Zd d � Zd d � Zd!d"� Zed)d#d$��Zed%d&� �ZdS )*r z�Generates output from a Message object tree. This basic generator writes the message to the given file object as plain text. N��policyc C s6 |dkr|dkrdn|j }|| _|| _|| _|| _dS )a� Create the generator for message flattening. outfp is the output file-like object for writing the message to. It must have a write() method. Optional mangle_from_ is a flag that, when True (the default if policy is not set), escapes From_ lines in the body of the message by putting a `>' in front of them. Optional maxheaderlen specifies the longest length for a non-continued header. When a header line is longer (in characters, with tabs expanded to 8 spaces) than maxheaderlen, the header will split as defined in the Header class. Set maxheaderlen to zero to disable header wrapping. The default is 78, as recommended (but not required) by RFC 2822. The policy keyword specifies a policy object that controls a number of aspects of the generator's operation. If no policy is specified, the policy associated with the Message object passed to the flatten method is used. NT)� mangle_from_�_fp� _mangle_from_� maxheaderlenr )�self�outfpr r r � r �'/usr/lib64/python3.8/email/generator.py�__init__$ s zGenerator.__init__c C s | j �|� d S �N)r �write�r �sr r r r D s zGenerator.writeFc C s� | j dkr|j n| j }|dk r*|j|d�}| jdk rB|j| jd�}|j| _| �| j�| _d| _| �| j�| _| j }|j }zL|| _ ||_ |r�|� � }|s�dt � t � � � }| � || j � | � |� W 5 || _ ||_ X dS )a� Print the message object tree rooted at msg to the output file specified when the Generator instance was created. unixfrom is a flag that forces the printing of a Unix From_ delimiter before the first object in the message tree. If the original message has no From_ delimiter, a `standard' one is crafted. By default, this is False to inhibit the printing of any From_ delimiter. Note that for subobjects, no From_ line is printed. linesep specifies the characters used to indicate a new line in the output. The default value is determined by the policy specified when the Generator instance was created or, if none was specified, from the policy associated with the msg. N)�linesep�Zmax_line_length� z From nobody )r �cloner r �_NL�_encode� _encoded_NLZ_EMPTY�_encoded_EMPTYZ get_unixfrom�time�ctimer �_write)r �msg�unixfromr r Zold_gen_policyZold_msg_policyZufromr r r �flattenH s, zGenerator.flattenc C s | j || jd| jd�S )z1Clone this generator with the exact same options.Nr )� __class__r r )r �fpr r r r y s �zGenerator.clonec C s t � S r )r �r r r r � _new_buffer� s zGenerator._new_bufferc C s |S r r r r r r r � s zGenerator._encodec C sT |sd S t �|�}|d d� D ]}| �|� | �| j� q |d rP| �|d � d S )N���)�NLCRE�splitr r )r �lines�liner r r � _write_lines� s zGenerator._write_linesc C s� | j }z"d | _| �� | _ }| �|� W 5 || _ | j}| `X |r�t|�}|�d�d krd|d |d< n|�d|d � |�d|d � t|dd �}|d kr�| �|� n|| � | j � |� � � d S )N�content-transfer-encodingr �Content-Transfer-Encoding� content-type� �_write_headers) r � _munge_cter+ � _dispatchr �getZreplace_header�getattrr6 r �getvalue)r r% ZoldfpZ munge_cteZsfp�methr r r r$ � s& zGenerator._writec C st |� � }|�� }t�||f��dd�}t| d| d �}|d krh|�dd�}t| d| d �}|d krh| j}||� d S )N�-r Z_handle_)�get_content_maintype�get_content_subtype� UNDERSCORE�join�replacer: � _writeBody)r r% �main�subZspecificr< Zgenericr r r r8 � s zGenerator._dispatchc C s6 |� � D ] \}}| �| j�||�� q| �| j� d S r )� raw_itemsr r Zfoldr �r r% �h�vr r r r6 � s zGenerator._write_headersc C s� |� � }|d krd S t|t�s.tdt|� ��t|j�r~|�d�}|d k r~t|�}|d= |� ||� |� � }|d |d f| _ | j r�t � d|�}| �|� d S )Nzstring payload expected: %s�charsetr2 r4 �>From )� get_payload� isinstance�str� TypeError�typer �_payloadZ get_paramr Z set_payloadr7 r �fcrerE r1 )r r% �payloadrJ r r r � _handle_text� s$ � zGenerator._handle_textc C s� g }|� � }|d krg }n(t|t�r2| �|� d S t|t�sB|g}|D ]6}| �� }| �|�}|j|d| jd� |� |� � � qF|� � }|s�| j � |�}| �|�}|�|� |jd k r�| jr�t�d|j�} n|j} | �| � | �| j� | �d| | j � |�r| j�|�d�� |D ],} | �| jd | | j � | j�| � �q| �| jd | d | j � |jd k �r�| j�r�t�d|j�} n|j} | �| � d S )NF�r& r rK z--r )rL rM rN r �listr+ r r' r �appendr; Z get_boundaryr rA �_make_boundaryZ set_boundary�preambler rR rE r1 r �pop�epilogue) r r% ZmsgtextsZsubparts�partr �g�boundaryZalltextrY Z body_partr[ r r r �_handle_multipart sJ zGenerator._handle_multipartc C s0 | j }|jdd�| _ z| �|� W 5 || _ X d S )Nr r )r r r_ )r r% �pr r r �_handle_multipart_signed< s z"Generator._handle_multipart_signedc C s� g }|� � D ]t}| �� }| �|�}|j|d| jd� |�� }|�| j�}|rv|d | jkrv|� | j� |d d� �� q |� |� q | j � | j� |�� d S )NFrU r, ) rL r+ r r' r r; r. r r! rW rA r r )r r% Zblocksr\ r r] �textr/ r r r � _handle_message_delivery_statusG s z)Generator._handle_message_delivery_statusc C s^ | � � }| �|�}|j}t|t�rD|j|�d�d| jd� |�� }n | � |�}| j � |� d S )Nr FrU ) r+ r rQ rM rV r' rL r r; r r r )r r% r r] rS r r r �_handle_message\ s zGenerator._handle_messagec C sv t �tj�}dt| d }|d kr(|S |}d}| �dt�|� d tj�}|� |�sXqr|d t |� }|d7 }q0|S )Nz===============z==r z^--z(--)?$�.r5 ) �randomZ randrange�sys�maxsize�_fmt� _compile_re�re�escape� MULTILINE�searchrN )�clsrb �tokenr^ �bZcounterZcrer r r rX u s zGenerator._make_boundaryc C s t �||�S r )rk �compile�ro r �flagsr r r rj � s zGenerator._compile_re)NN)FN)N)�__name__� __module__� __qualname__�__doc__r r r' r r+ r r1 r$ r8 r6 rT rC r_ ra rc rd � classmethodrX rj r r r r r s. � 1' : c sP e Zd ZdZdd� Zdd� Zdd� Zdd � Z� fd d �ZeZ e d d � �Z � Z S )r a� Generates a bytes version of a Message object tree. Functionally identical to the base Generator except that the output is bytes and not string. When surrogates were used in the input to encode bytes, these are decoded back to bytes for output. If the policy has cte_type set to 7bit, then the message is transformed such that the non-ASCII bytes are properly content transfer encoded, using the charset unknown-8bit. The outfp object must accept bytes in its write method. c C s | j �|�dd�� d S )N�ascii�surrogateescape)r r �encoder r r r r � s zBytesGenerator.writec C s t � S r )r r* r r r r+ � s zBytesGenerator._new_bufferc C s |� d�S �Nrz )r| r r r r r � s zBytesGenerator._encodec C s8 |� � D ] \}}| j�| j�||�� q| �| j� d S r )rF r r r Z fold_binaryr rG r r r r6 � s z BytesGenerator._write_headersc s\ |j d krd S t|j �rH| jjdksH| jr:t�d|j �|_ | �|j � ntt | �� |� d S )NZ7bitrK ) rQ r r Zcte_typer rR rE r1 �superr rT )r r% �r( r r rT � s zBytesGenerator._handle_textc C s t �|�d�|�S r} )rk rr r| rs r r r rj � s zBytesGenerator._compile_re) ru rv rw rx r r+ r r6 rT rC ry rj � __classcell__r r r r r � s zD[Non-text (%(type)s) part of message omitted, filename %(filename)s]c @ s( e Zd ZdZddd�dd�Zdd� ZdS ) r z�Generates a text representation of a message. Like the Generator base class, except that non-text parts are substituted with a format string representing the part. Nr c C s. t j| ||||d� |dkr$t| _n|| _dS )a� Like Generator.__init__() except that an additional optional argument is allowed. Walks through all subparts of a message. If the subpart is of main type `text', then it prints the decoded payload of the subpart. Otherwise, fmt is a format string that is used instead of the message payload. fmt is expanded with the following keywords (in %(keyword)s format): type : Full MIME type of the non-text part maintype : Main MIME type of the non-text part subtype : Sub-MIME type of the non-text part filename : Filename of the non-text part description: Description associated with the non-text part encoding : Content transfer encoding of the non-text part The default value for fmt is None, meaning [Non-text (%(type)s) part of message omitted, filename %(filename)s] r N)r r �_FMTri )r r r r Zfmtr r r r r � s �zDecodedGenerator.__init__c C s� |� � D ]v}|�� }|dkr2t|jdd�| d� q|dkr<qt| j|�� |�� |�� |�d�|�dd�|�d d �d � | d� qd S ) Nrb F)�decode)�fileZ multipartz [no filename]zContent-Descriptionz[no description]r3 z [no encoding])rP �maintypeZsubtype�filenameZ description�encoding) �walkr> �printrL ri Zget_content_typer? � get_filenamer9 )r r% r\ r� r r r r8 � s( ��� �zDecodedGenerator._dispatch)NNN)ru rv rw rx r r8 r r r r r � s � r5 z%%0%dd) rx �__all__rk rg r" rf �copyr �ior r Z email.utilsr r@ �NLrr r- rm rR r r r� r �len�reprrh Z_widthri rX r r r r �<module> s* t3;
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