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e�ZdZdZddddd d d d d d!d"d#h Zd$d%d&d'd(d)d*gZd)d*d+�Zd,Z e� d-d.d/d0d1g�Z e� d2d3d4d5g�Z d6d� Z d7d8� Z dmd9d:�Z!dnd;d<�Z"dod=d>�Z#e �r�d?d@� Z$G dAdB� dB�Z%G dCd� de%�Z&e �r�G dDdE� dEe%�Z'e�(dE� e)dFk�r�ddl*Z*e*j+dGdH�Z,e,j-dIdJdKdLdM� e,j-dNdOdPdQdM� e,j-dRdSdTe.dUeef dV� e,j-dWdXdYe.dZdV� e,j-d[d\d]dd^d_� e,�/� Z0e0j1Z1e0j�s�e1dTk�r|eZ1e&e0j2e1d`�Z3n e1dTk�r�eZ1e'e0j2e1d`�Z3e3�4� Z5dae5k�r�e3�6� e3�7e0j7�\Z8Z9Z:Z;Z<e=dbe<dce9dde:dee;� dfdg� Z>e?e.e;�e0j@ dh �Z:e3�Ae:e;�\Z8ZBeBD ]Z\ZCZDe eDd% ��Edidh�d ZFe eDd$ �ZGe.eDd* �ZHe=dj�IeCe>eFdk�e>eGdl�eH�� �q e3�J� dS )pa� An NNTP client class based on:
- RFC 977: Network News Transfer Protocol
- RFC 2980: Common NNTP Extensions
- RFC 3977: Network News Transfer Protocol (version 2)
Example:
>>> from nntplib import NNTP
>>> s = NNTP('news')
>>> resp, count, first, last, name = s.group('comp.lang.python')
>>> print('Group', name, 'has', count, 'articles, range', first, 'to', last)
Group comp.lang.python has 51 articles, range 5770 to 5821
>>> resp, subs = s.xhdr('subject', '{0}-{1}'.format(first, last))
>>> resp = s.quit()
>>>
Here 'resp' is the server response line.
Error responses are turned into exceptions.
To post an article from a file:
>>> f = open(filename, 'rb') # file containing article, including header
>>> resp = s.post(f)
>>>
For descriptions of all methods, read the comments in the code below.
Note that all arguments and return values representing article numbers
are strings, not numbers, since they are rarely used for calculations.
� NFT)�
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7 }t�||||||�S ) z�Parse a pair of (date, time) strings, and return a datetime object.
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The returned representation depends on the legacy flag:
* if legacy is False (the default):
date has the YYYYMMDD format and time the HHMMSS format
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RFC 3977 compliant servers should understand both formats; therefore,
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Z000000z({0.hour:02d}{0.minute:02d}{0.second:02d}rP z {0:02d}{1.month:02d}{1.day:02d}z {0:04d}{1.month:02d}{1.day:02d})r+ rQ �formatrT )ZdtZlegacyrS �yrR r r r �_unparse_datetime� s
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dS )aS Initialize an instance. Arguments:
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readermode is sometimes necessary if you are connecting to an
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rD i | _ Y n<X || _ d|krhttt|d ��| _d|kr�d� |d �| _| j S )z�Get the server capabilities, as read by __init__().
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r� rb rx ry r- r� r� r r r )r r� �cr r r rc � s z_NNTPBase._getrespc C s� d}z�t|ttf�r"t|d� }}| �� }|dd� tkrBt|��g }|dk r�dt df}| � d�}||krnq�|�
d�r�|dd� }|� |� qZn8d}| � � }||kr�q�|�
d�r�|dd� }|� |� q�W 5 |r�|� � X ||fS ) aP Internal: get a response plus following text from the server.
Raise various errors if the response indicates an error.
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z_NNTPBase._getlongrespc C s | � |� | �� S )zWInternal: send a command and get the response.
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z_NNTPBase._shortcmdc C s | � |� | �|�S )zoInternal: send a command and get the response plus following text.
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z_NNTPBase._longcmdc s. � � |� � �|�\}}|� fdd�|D �fS )z�Internal: send a command and get the response plus following text.
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c s g | ]}|� � j� j��qS r )r- r� r� ��.0r; rn r r �
<listcomp> s �z,_NNTPBase._longcmdstring.<locals>.<listcomp>r� )r r; ra r� �listr rn r �_longcmdstring s
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X t|�}|| _ |S )zqInternal: get the overview format. Queries the server if not
already done, else returns the cached value.zLIST OVERVIEW.FMTN)Z_cachedoverviewfmt�AttributeErrorr� r r8 r@ )r r� r r: r r r �_getoverviewfmt s z_NNTPBase._getoverviewfmtc C s dd� |D �S )Nc S s g | ]}t |�� � �qS r )r! rB r� r r r r� & s z(_NNTPBase._grouplist.<locals>.<listcomp>r )r r r r r �
_grouplist$ s z_NNTPBase._grouplistc C s8 i }| � d�\}}|D ]}|�� ^}}|||< q||fS )a! Process a CAPABILITIES command. Not supported by all servers.
Return:
- resp: server response if successful
- caps: a dictionary mapping capability names to lists of tokens
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Z CAPABILITIES)r� rB )r r� r� r r; r< rF r r r r} ( s
z_NNTPBase.capabilities)ra c C sb t |tjtjf�s$td�|jj���t|| jdk �\}}d�||�}| � ||�\}}|| �
|�fS )z�Process a NEWGROUPS command. Arguments:
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r� rK zNEWNEWS {0} {1} {2})
r+ rQ r r� rV r� r rX r| r� )r r" r ra rR rS r� r r r �newnewsF s ��z_NNTPBase.newnewsc C s4 |dk rd| }nd}| � ||�\}}|| �|�fS )a@ Process a LIST or LIST ACTIVE command. Arguments:
- group_pattern: a pattern indicating which groups to query
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Returns:
- resp: server response if successful
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Nz LIST ACTIVE ZLIST)r� r� )r �
group_patternra �commandr� r r r r r� V s
z_NNTPBase.listc C s� t �d�}| �d| �\}}|�d�s8| �d| �\}}i }|D ]:}|�|�� �}|r@|�dd�\} }
|sr|
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|| < q@|r�||fS dS d S )Nz ^(?P<group>[^ ]+)[ ]+(.*)$zLIST NEWSGROUPS r �XGTITLE r3 rK r) )�re�compiler� rE �search�stripr" ) r r� Z
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z_NNTPBase._getdescriptionsc C s | � |d�S )a� Get a description for a single group. If more than one
group matches ('group' is a pattern), return the first. If no
group matches, return an empty string.
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only be '215' or '285' (for xgtitle) anyway. If the response
code is needed, use the 'descriptions' method.
NOTE: This neither checks for a wildcard in 'group' nor does
it check whether the group actually exists.F�r� )r r" r r r � description| s z_NNTPBase.descriptionc C s | � |d�S )z'Get descriptions for a range of groups.Tr� )r r� r r r � descriptions� s z_NNTPBase.descriptionsc C s� | � d| �}|�d�s t|��|�� }d } }}t|�}|dkr�|d }|dkr�|d }|dkr�|d }|dkr�|d �� }|t|�t|�t|�|fS )a Process a GROUP command. Argument:
- group: the group name
Returns:
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- count: number of articles
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- name: the group name
zGROUP r r r3 rK r� rL )r� rE r rB r9 r5 rC )r r< r� �words�countr$ r# �nr r r r" � s
z_NNTPBase.groupc C s | � d|�S )a Process a HELP command. Argument:
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- list: list of strings returned by the server in response to the
HELP command
ZHELP)r� )r ra r r r �help� s z_NNTPBase.helpc C s8 |� d�st|��|�� }t|d �}|d }|||fS )z_Internal: parse the response line of a STAT, NEXT, LAST,
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z_NNTPBase._statparsec C s | � |�}| �|�S )z/Internal: process a STAT, NEXT or LAST command.)r� r� )r r; r� r r r �_statcmd� s
z_NNTPBase._statcmdc C s" |r| � d�|��S | � d�S dS )a( Process a STAT command. Argument:
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Returns:
- resp: server response if successful
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- message_id: the message id
zSTAT {0}ZSTATN)r� rV )r � message_specr r r �stat� s z_NNTPBase.statc C s
| � d�S )z;Process a NEXT command. No arguments. Return as for STAT.ZNEXT�r� rn r r r �next� s z_NNTPBase.nextc C s
| � d�S )z;Process a LAST command. No arguments. Return as for STAT.ZLASTr� rn r r r r# � s z_NNTPBase.lastc C s0 | � ||�\}}| �|�\}}}|t|||�fS )z2Internal: process a HEAD, BODY or ARTICLE command.)r� r� r& )r r; ra r� r r� r' r r r �_artcmd� s z_NNTPBase._artcmdc C s$ |dk rd� |�}nd}| �||�S )a0 Process a HEAD command. Argument:
- message_spec: article number or message id
- file: filename string or file object to store the headers in
Returns:
- resp: server response if successful
- ArticleInfo: (article number, message id, list of header lines)
NzHEAD {0}ZHEAD�rV r� �r r� ra r� r r r �head� s z_NNTPBase.headc C s$ |dk rd� |�}nd}| �||�S )a+ Process a BODY command. Argument:
- message_spec: article number or message id
- file: filename string or file object to store the body in
Returns:
- resp: server response if successful
- ArticleInfo: (article number, message id, list of body lines)
NzBODY {0}ZBODYr� r� r r r �body� s z_NNTPBase.bodyc C s$ |dk rd� |�}nd}| �||�S )a5 Process an ARTICLE command. Argument:
- message_spec: article number or message id
- file: filename string or file object to store the article in
Returns:
- resp: server response if successful
- ArticleInfo: (article number, message id, list of article lines)
Nz ARTICLE {0}ZARTICLEr� r� r r r �article� s z_NNTPBase.articlec C s
| � d�S )zYProcess a SLAVE command. Returns:
- resp: server response if successful
ZSLAVE)r� rn r r r �slave s z_NNTPBase.slavec sD t �d�� | �d�||�|�\}}� fdd��|�fdd�|D �fS )ai Process an XHDR command (optional server extension). Arguments:
- hdr: the header type (e.g. 'subject')
- str: an article nr, a message id, or a range nr1-nr2
- file: Filename string or file object to store the result in
Returns:
- resp: server response if successful
- list: list of (nr, value) strings
z^([0-9]+) ?(.*)
?z XHDR {0} {1}c s � � | �}|r|�dd�S | S )Nr3 rK )r� r" )r; �m)�patr r �
remove_number s
z%_NNTPBase.xhdr.<locals>.remove_numberc s g | ] }� |��qS r r r� )r� r r r� s z"_NNTPBase.xhdr.<locals>.<listcomp>)r� r� r� rV )r Zhdrr� ra r� r r )r� r� r �xhdr s
z_NNTPBase.xhdrc C s. | � d�||�|�\}}| �� }|t||�fS )aF Process an XOVER command (optional server extension) Arguments:
- start: start of range
- end: end of range
- file: Filename string or file object to store the result in
Returns:
- resp: server response if successful
- list: list of dicts containing the response fields
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