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Editing: datedetector.cpython-39.pyc
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a =�*f L � @ s� d Z dZdZddlZddlZddlmZ ddlmZm Z m Z m Z m Z m Z ddlmZ dd lmZ d d lmZ ee�Zd Ze�d ej�Zejddd�Zd dd�Z dd� fdd�Z G dd� de �Z G dd� de �Z G dd � d e �Z!dS ) z'Cyril Jaquier and Fail2Ban Contributorsz Copyright (c) 2004 Cyril JaquierZGPL� N)�Lock� )�re� DateTemplate�DatePatternRegex� DateTai64n� DateEpoch�RE_EPOCH_PATTERN)�validateTimeZone)�Utils� )� getLogger� z(?<!\\)\{DATE\}i� i )ZmaxCountZmaxTimec C s� |d u r | }d| vr | � � }t�|�}|s�d|v r~t�| �rNt| d|v d�}n0|dv rft|dkd�}n|dv r~t|dkdd �}|d u r�|d v r�t|d kr�d nd d�}nt| �}t�||� |S )N�%�EPOCH�LEPOCH)�pattern�longFrm)r z{^LN-BEG}EPOCHz^EPOCH)� lineBeginOnly)r z{^LN-BEG}LEPOCHz^LEPOCHT)r r )�TAI64Nz{^LN-BEG}TAI64Nz^TAI64Nr �startF)Z wordBegin) �upper�DD_patternCache�getr �searchr r r �set)r �key�template� r �@/usr/lib/python3.9/site-packages/fail2ban/server/datedetector.py�_getPatternTemplate, s& r c C s d| S �N� {^LN-BEG}r ��sr r r �<lambda>D � r% c C sb || j �}t�|�}|s^|t| d| j��}t| d�r>t�|�}|s^t| d�sVt|�}nt|�}|S )Nr )�namer r �getattr�regex�hasattrr )r �wrapr' � template2r) r r r �_getAnchoredTemplateD s r- c @ sH e Zd ZdZdd� Zedd� �Zdd� Zg d�Zed d � �Z d d � Z d S )�DateDetectorCachez7Implements the caching of the default templates list. c C s t � | _t� | _d S �N)r �_DateDetectorCache__lock�list� _DateDetectorCache__templates��selfr r r �__init__\ s zDateDetectorCache.__init__c C s^ | j r | j S | j�8 | j r.| j W d � S | �� | j W d � S 1 sP0 Y dS )�6List of template instances managed by the detector. N)r2 r0 �_addDefaultTemplater3 r r r � templates` s zDateDetectorCache.templatesc C s` |j }|�d�sL|�d�sLt|d�rLt|�}|j |krLd|_| jd �|� | jd �|� dS )z&Cache Fail2Ban's default template. r" �^r) g Y@r r N)r' � startswithr* r- �weight� _DateDetectorCache__tmpcache�append)r4 r r' r, r r r �_cacheTemplatel s z DateDetectorCache._cacheTemplate)zF%ExY(?P<_sep>[-/.])%m(?P=_sep)%d(?:T| ?)%H:%M:%S(?:[.,]%f)?(?:\s*%z)?z)(?:%a )?%b %d %k:%M:%S(?:\.%f)?(?: %ExY)?z$(?:%a )?%b %d %ExY %k:%M:%S(?:\.%f)?z1%d(?P<_sep>[-/])%m(?P=_sep)(?:%ExY|%Exy) %k:%M:%Sz=%d(?P<_sep>[-/])%b(?P=_sep)%ExY[ :]?%H:%M:%S(?:\.%f)?(?: %z)?z%m/%d/%ExY:%H:%M:%Sz %m-%d-%ExY %k:%M:%S(?:\.%f)?r z{^LN-BEG}%H:%M:%Sz^<%m/%d/%Exy@%H:%M:%S>z%Exy%Exm%Exd ?%H:%M:%Sz%b %d, %ExY %I:%M:%S %pz^%b-%d-%Exy %k:%M:%Sz6%ExY%Exm%Exd(?:T| ?)%ExH%ExM%ExS(?:[.,]%f)?(?:\s*%z)?z1(?:%Z )?(?:%a )?%b %d %k:%M:%S(?:\.%f)?(?: %ExY)?z1(?:%z )?(?:%a )?%b %d %k:%M:%S(?:\.%f)?(?: %ExY)?r c C s< t tjd t�r6ttj�D ]\}}t|�}|tj|< qtjS )Nr )� isinstancer. �DEFAULT_TEMPLATES�str� enumerater )r4 �i�dtr r r �defaultTemplates� s z"DateDetectorCache.defaultTemplatesc C s> g g f| _ | jD ]}| �|� q| j d | j d | _| ` dS )z<Add resp. cache Fail2Ban's default set of date templates. r r N)r< rE r> r2 )r4 rD r r r r7 � s z%DateDetectorCache._addDefaultTemplateN) �__name__� __module__� __qualname__�__doc__r5 �propertyr8 r> r@ rE r7 r r r r r. Y s 5 r. c @ s0 e Zd ZdZdZdd� Zedd� �Zdd� Zd S ) �DateDetectorTemplateztUsed for "shallow copy" of the template object. Prevents collectively usage of hits/lastUsed in cached templates �r �hits�lastUsed�distancec C s || _ d| _d| _d| _d S )Nr ��rL )r4 r r r r r5 � s z DateDetectorTemplate.__init__c C s | j | jj td| j� S )Nr )rM r r; �maxrO r3 r r r r; � s zDateDetectorTemplate.weightc C s t | j|�S )zF Returns attribute of template (called for parameters not in slots) )r( r )r4 r' r r r � __getattr__� s z DateDetectorTemplate.__getattr__N) rF rG rH rI � __slots__r5 rJ r; rR r r r r rK � s rK c @ sz e Zd ZdZe� Zdd� Zddd�Zdd� Zdd d �Z e d d� �Z dd� Z e dd� �Z e jdd� �Z ddd�Zdd� Zd S )� DateDetectorzjManages one or more date templates to find a date within a log line. Attributes ---------- templates c C s> t � | _t� | _d| _d| _d| _d| _d| _d | _ d | _ d S )Ni, )r N)rP NrP r ) r1 �_DateDetector__templatesr �_DateDetector__known_names�_DateDetector__unusedTime�_DateDetector__lastPos�_DateDetector__lastEndPos�_DateDetector__lastTemplIdx�_DateDetector__firstUnusedZ_DateDetector__preMatch�_DateDetector__default_tzr3 r r r r5 � s zDateDetector.__init__Fc C sD |j }|| jv r$|rd S td| ��| j�|� | j�t|�� d S )Nz(There is already a template with name %s)r' rV � ValueError�addrU r= rK )r4 r � ignoreDupr' r r r �_appendTemplate� s � z DateDetector._appendTemplatec s� t |t�r�| � }d|vr"|�� � t�� �}|s�� dv rR� fdd�}| �|� dS d� v rl| j|dd� dS � d kr�td � �}n t|� �}t�� |� | �|� t � d t |d d �|j � t � dt |d d �|j� dS )a� Add a date template to manage and use in search of dates. Parameters ---------- template : DateTemplate or str Can be either a `DateTemplate` instance, or a string which will be used as the pattern for the `DatePatternRegex` template. The template will then be added to the detector. Raises ------ ValueError If a template already exists with the same name. r )r" z {DEFAULT}c s � dkr| j tj@ S d S r! )�flagsr � LINE_BEGIN)r �r r r r% r& z-DateDetector.appendTemplate.<locals>.<lambda>Nz{DATE}F)�preMatch� allDefaultsz{NONE}z{UNB}^z date pattern `%r`: `%s`r � z date pattern regex for %r: %s)r? rA r r r �addDefaultTemplater r r` �logSys�infor( r' �debugr) )r4 r r Zfltr rc r �appendTemplate s2 � ��zDateDetector.appendTemplateNTc sh t | j�dk}|rtjjntjjD ]@}|dur8||�s8q"� durTt|� fdd�d�}| j||d� q"dS )z0Add Fail2Ban's default set of date templates. r Nc s t �� fdd���S )Nc s t �� �S r/ )r ZunboundPattern)�mr# r r r% 7 r& zCDateDetector.addDefaultTemplate.<locals>.<lambda>.<locals>.<lambda>)�RE_DATE_PREMATCH�subr# �rd r# r r% 7 r& z1DateDetector.addDefaultTemplate.<locals>.<lambda>)r+ )r_ )�lenrU rT � _defCacher8 rE r- r` )r4 ZfilterTemplaterd re r_ r r ro r rg * s � �z DateDetector.addDefaultTemplatec C s | j S )r6 )rU r3 r r r r8 ; s zDateDetector.templatesc C s� t | j�s| �� t�� tkr$tjndd� }|td d|� d}d}d}| j}|t | j�k �rd| j| }|j}|j t j t j B @ r�|td d|� |� |�}|}�n4| jd | jd } } |td d || | || d | � | jd || | � || | d � | jd � || d | � | jd k�sJ|| | d � | jd k�r�| jd �� �s�|| | d � | jd k�s�|| d | � | jd k�r�| jd �� �s�|td d || | � � |� || | �}n |td d � |� |�}|}|�rZ|�� } |�� } t | j�dk�s0|j t j t j B @ �s0| | jd k�r>| | jd k�r>|td|� n|td� || | |f}d}n |td� |�s�|tdt | j�� d }| jD �]2}||k�r�|d7 }�q�|td d||j� |j}|� |�}|�r�|�� } |�� } |td|| |j| jd |j� |d t | j�k�r �q�|j t j t j B @ �r. �q�| d k�rZ|j�rZ| j|d jj�sZ �q�| |jk�sv| | jd k�r�|td� | |d k �r�|| | |f}d}|d7 }�q� �q�|d7 }�q�|�s�|d �r�|\}} } }|td|� | j| }|j}|�r�| jd7 _t�� |_| |_| j|k�r2| jd7 _| || d | � || f| _| || d || | d � f| _|�r�|| jk�r�| �|�}|| _||fS |td� dS )a� Attempts to find date on a log line using templates. This uses the templates' `matchDate` method in an attempt to find a date. It also increments the match hit count for the winning template. Parameters ---------- line : str Line which is searched by the date templates. Returns ------- re.MatchObject, DateTemplate The regex match returned from the first successfully matched template. c W s d S r/ r )�argsr r r r% V r& z(DateDetector.matchTime.<locals>.<lambda>r z"try to match time for line: %.120sN)NrP rP ���rP z/ try to match last anchored template #%02i ...r zJ try to match last template #%02i (from %r to %r): ...%r==%r %s %r==%r...r z+ boundaries are correct, search in part %rz, boundaries show conflict, try whole searchz" matched last time template #%02izB ** last pattern collision - pattern change, reserve & search ...z8 ** last pattern not found - pattern change, search ...z search template (%i) ...z try template #%02i: %sz2 matched time template #%02i (at %r <= %r, %r) %sz1 ** distance collision - pattern change, reservez use best time template #%02iz no template.)NN)rp rU rg rh �getEffectiveLevel�logLevel�logrZ r ra r rb ZLINE_ENDZ matchDaterX rY �isalnumr �endr' rO rM �timerN r[ �_reorderTemplate) r4 �linerv �match�foundZignoreBySearchrC �ddtemplr rO �endposr r r � matchTimeA s� ��� ��� � �� � � �& zDateDetector.matchTimec C s | j S r/ )r\ r3 r r r � default_tz� s zDateDetector.default_tzc C s t |�| _d S r/ )r r\ )r4 �valuer r r r� � s c C s� |du r| � |�}|d }|dur�zV|j||d | jd�}|durvt�� tkrpt�td|d |d �d�|j� |W S W n t y� Y n0 dS )a Attempts to return the date on a log line using templates. This uses the templates' `getDate` method in an attempt to find a date. For the faster usage, always specify a parameter timeMatch (the previous tuple result of the matchTime), then this will work without locking and without cycle over templates. Parameters ---------- line : str Line which is searched by the date templates. Returns ------- float The Unix timestamp returned from the first successfully matched template or None if not found. Nr r )r� z& got time %f for %r using template %s) r� ZgetDater\ rh rt ru rv �groupr' r] )r4 r{ Z timeMatchr �dater r r �getTime� s � zDateDetector.getTimec s� �r�| j ��� � t�� tkr0t�td�� j� � j| j �� j�| j �k rR| j n�d �� �����fdd�}|� s���d kr��S �d �|� s��S ��= � g��d�< | j t ��k rֈ| j jr�| j d7 _ q�t�� tkr�t�td��� �S �S )z�Reorder template (bubble up) in template list if hits grows enough. Parameters ---------- num : int Index of template should be moved. z% -> reorder template #%02i, hits: %rr c sL �� j } t�� tkr6t�td���| � j�� j� �| kpJ��� jkS )NzE -> compare template #%02i & #%02i, weight %.3f > %.3f, hits %r > %r)r; rh rt ru rv rM rN )Zpweight�r~ �num�posr8 Zuntimer; r r � _moveable s �z0DateDetector._reorderTemplate.<locals>._moveabler r z" -> moved template #%02i -> #%02i) rU rh rt ru rv rM rN rW r; r[ rp )r4 r� r� r r� r rz � s. z DateDetector._reorderTemplate)F)NNT)N)rF rG rH rI r. rq r5 r` rk rg rJ r8 r� r� �setterr� rz r r r r rT � s * $rT )N)"� __author__Z __copyright__Z __license__�copyry � threadingr Z datetemplater r r r r r �strptimer Zutilsr Zhelpersr rF rh ru �compile� IGNORECASErm ZCacher r r- �objectr. rK rT r r r r �<module> s$ n
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