U e5d�$�@s\dZddlZddlZddlZdgZe�dd�ZGdd�d�ZGdd�d�Z Gd d �d �Z dS) a% robotparser.py Copyright (C) 2000 Bastian Kleineidam You can choose between two licenses when using this package: 1) GNU GPLv2 2) PSF license for Python 2.2 The robots.txt Exclusion Protocol is implemented as specified in http://www.robotstxt.org/norobots-rfc.txt �N�RobotFileParser� RequestRatezrequests secondsc@sreZdZdZddd�Zdd�Zdd�Zd d �Zd d �Zd d�Z dd�Z dd�Z dd�Z dd�Z dd�Zdd�ZdS)rzs This class provides a set of methods to read, parse and answer questions about a single robots.txt file. �cCs2g|_g|_d|_d|_d|_|�|�d|_dS)NFr)�entries�sitemaps� default_entry� disallow_all� allow_all�set_url� last_checked��self�url�r�*/usr/lib64/python3.8/urllib/robotparser.py�__init__s zRobotFileParser.__init__cCs|jS)z�Returns the time the robots.txt file was last fetched. This is useful for long-running web spiders that need to check for new robots.txt files periodically. )r �r rrr�mtime%szRobotFileParser.mtimecCsddl}|��|_dS)zYSets the time the robots.txt file was last fetched to the current time. rN)�timer )r rrrr�modified.szRobotFileParser.modifiedcCs&||_tj�|�dd�\|_|_dS)z,Sets the URL referring to a robots.txt file.��N)r�urllib�parse�urlparseZhost�pathr rrrr 6szRobotFileParser.set_urlc Cs�ztj�|j�}WnRtjjk rd}z0|jdkr:d|_n|jdkrT|jdkrTd|_W5d}~XYnX|� �}|� |� d�� ��dS)z4Reads the robots.txt URL and feeds it to the parser.)i�i�Ti�i�Nzutf-8) rZrequestZurlopenr�errorZ HTTPError�coderr �readr�decode� splitlines)r �f�err�rawrrrr;s zRobotFileParser.readcCs,d|jkr|jdkr(||_n |j�|�dS�N�*)� useragentsrr�append)r �entryrrr� _add_entryHs  zRobotFileParser._add_entrycCsPd}t�}|��|D�]}|sP|dkr4t�}d}n|dkrP|�|�t�}d}|�d�}|dkrn|d|�}|��}|s|q|�dd�}t|�dkr|d����|d<tj � |d���|d<|ddkr�|dkr�|�|�t�}|j � |d�d}q|ddk�r.|dk�r6|j � t|dd ��d}q|dd k�rb|dk�r6|j � t|dd ��d}q|dd k�r�|dk�r6|d�����r�t|d�|_d}q|dd k�r|dk�r6|d�d�}t|�dk�r|d�����r|d�����rtt|d�t|d��|_d}q|ddkr|j� |d�q|dk�rL|�|�dS)z�Parse the input lines from a robots.txt file. We allow that a user-agent: line is not preceded by one or more blank lines. rr��#N�:z user-agentZdisallowFZallowTz crawl-delayz request-rate�/Zsitemap)�Entryrr)�find�strip�split�len�lowerrr�unquoter&r'� rulelines�RuleLine�isdigit�int�delayr�req_rater)r �lines�stater(�line�iZnumbersrrrrQsj              �  zRobotFileParser.parsecCs�|jr dS|jrdS|jsdStj�tj�|��}tj�dd|j|j |j |j f�}tj� |�}|sfd}|j D]}|�|�rl|�|�Sql|jr�|j�|�SdS)z=using the parsed robots.txt decide if useragent can fetch urlFTrr-)rr r rrrr4� urlunparserZparamsZqueryZfragment�quoter� applies_to� allowancer)r � useragentrZ parsed_urlr(rrr� can_fetch�s*�    zRobotFileParser.can_fetchcCs>|��s dS|jD]}|�|�r|jSq|jr:|jjSdS�N)rrrAr9r�r rCr(rrr� crawl_delay�s   zRobotFileParser.crawl_delaycCs>|��s dS|jD]}|�|�r|jSq|jr:|jjSdSrE)rrrAr:rrFrrr� request_rate�s   zRobotFileParser.request_ratecCs|js dS|jSrE)rrrrr� site_maps�szRobotFileParser.site_mapscCs,|j}|jdk r||jg}d�tt|��S)Nz )rr�join�map�str)r rrrr�__str__�s  zRobotFileParser.__str__N)r)�__name__� __module__� __qualname__�__doc__rrrr rr)rrDrGrHrIrMrrrrrs    I  c@s(eZdZdZdd�Zdd�Zdd�ZdS) r6zoA rule line is a single "Allow:" (allowance==True) or "Disallow:" (allowance==False) followed by a path.cCs<|dkr|sd}tj�tj�|��}tj�|�|_||_dS)NrT)rrr?rr@rrB)r rrBrrrr�s  zRuleLine.__init__cCs|jdkp|�|j�Sr$)r� startswith)r �filenamerrrrA�szRuleLine.applies_tocCs|jr dndd|jS)NZAllowZDisallowz: )rBrrrrrrM�szRuleLine.__str__N)rNrOrPrQrrArMrrrrr6�sr6c@s0eZdZdZdd�Zdd�Zdd�Zdd �Zd S) r.z?An entry has one or more user-agents and zero or more rulelinescCsg|_g|_d|_d|_dSrE)r&r5r9r:rrrrr�szEntry.__init__cCs�g}|jD]}|�d|���q |jdk r<|�d|j���|jdk rf|j}|�d|j�d|j���|�tt|j ��d� |�S)Nz User-agent: z Crawl-delay: zRequest-rate: r-� ) r&r'r9r:ZrequestsZseconds�extendrKrLr5rJ)r Zret�agentZraterrrrM�s   z Entry.__str__cCsF|�d�d��}|jD](}|dkr*dS|��}||krdSqdS)z2check if this entry applies to the specified agentr-rr%TF)r1r3r&)r rCrVrrrrA�s zEntry.applies_tocCs$|jD]}|�|�r|jSqdS)zZPreconditions: - our agent applies to this entry - filename is URL decodedT)r5rArB)r rSr=rrrrB s   zEntry.allowanceN)rNrOrPrQrrMrArBrrrrr.�s   r.) rQ� collectionsZ urllib.parserZurllib.request�__all__� namedtuplerrr6r.rrrr�s  B