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fail2ban
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Editing: jail.cpython-39.pyc
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a =�*f;- � @ sx d Z dZdZddlZddlZddlZddlZddlmZ ddl m Z m Z m Z m Z dd lm Z e e�ZG d d � d e�ZdS ) z.Cyril Jaquier, Lee Clemens, Yaroslav HalchenkozPCopyright (c) 2004 Cyril Jaquier, 2011-2012 Lee Clemens, 2012 Yaroslav HalchenkoZGPL� N� )�Actions� )� getLogger�_as_bool�extractOptions�MyTime)r c @ s e Zd ZdZg d�Zd5dd�Zdd� Zd d � Zd d � Zd d� Z dd� Z e dd� �Z e dd� �Z e jdd� �Z e dd� �Ze dd� �Ze dd� �Zejd d� �Zd6d d �Ze d d!� �Zd"d#� Zd$d%� Zd&d'� Zd7d(d)�Zd*d+� Zd8d-d.�Zd/d0� Zd9d1d2�Zd3d4� Z dS ):�Jailag Fail2Ban jail, which manages a filter and associated actions. The class handles the initialisation of a filter, and actions. It's role is then to act as an interface between the filter and actions, passing bans detected by the filter, for the actions to then act upon. Parameters ---------- name : str Name assigned to the jail. backend : str Backend to be used for filter. "auto" will attempt to pick the most preferred backend method. Default: "auto" db : Fail2BanDb Fail2Ban persistent database instance. Default: `None` Attributes ---------- name database filter actions idle status )Z pyinotifyZpollingZsystemd�autoNc C sp || _ t|�dkr t�d| � || _t�� | _d | _i | _ t� d| j � d | _ |d urf| � |�| _ || _d S )N� z]Jail name %r might be too long and some commands might not function correctly. Please shortenzCreating new jail '%s')� _Jail__db�len�logSys�warning� _Jail__name�queueZQueue� _Jail__queue� _Jail__filter� _banExtra�info�name� _realBackend� _setBackend�backend)�selfr r Zdb� r �8/usr/lib/python3.9/site-packages/fail2ban/server/jail.py�__init__G s � z Jail.__init__c C s d| j j| jf S )Nz%s(%r))� __class__�__name__r �r r r r �__repr__Y s z Jail.__repr__c C s> t |�\}}|�� }| j}|dkr`|| jvrNt�d||f � td||f ��||�|�d � }|D ]�}t| d|�� �}zT|f i |�� |dkr�||kr�t� d||f � nt� d| � t | �| _ |W S t �y } z0t�|dkr�tjntjd||f � W Y d }~qdd }~0 0 qdt�d| j � td| j ��d S )Nr z.Unknown backend %s. Must be among %s or 'auto'z_init%sz9Could only initiated %r backend whenever %r was requestedzInitiated %r backendz)Backend %r failed to initialize due to %sz,Failed to initialize any backend for Jail %r)r �lower� _BACKENDSr �error� ValueError�index�getattr� capitalizer r r �_Jail__actions� ImportError�log�logging�DEBUGZERRORr � RuntimeError)r r ZbeArgsZbackends�bZ initmethod�er r r r \ sD ��� � ��zJail._setBackendc K s6 ddl m} t�d| j|f � || fi |��| _d S )Nr )� FilterPollzJail '%s' uses poller %r)Z filterpollr1 r r r r )r �kwargsr1 r r r � _initPolling� s zJail._initPollingc K s6 ddl m} t�d| j|f � || fi |��| _d S )Nr )�FilterPyinotifyzJail '%s' uses pyinotify %r)Zfilterpyinotifyr4 r r r r )r r2 r4 r r r �_initPyinotify� s zJail._initPyinotifyc K s6 ddl m} t�d| j|f � || fi |��| _d S )Nr )� FilterSystemdzJail '%s' uses systemd %r)Z filtersystemdr6 r r r r )r r2 r6 r r r � _initSystemd� s zJail._initSystemdc C s | j S )zName of jail. )r r r r r r � s z Jail.namec C s | j S )z;The database used to store persistent data for the jail. �r r r r r �database� s z Jail.databasec C s || _ d S �Nr8 �r �valuer r r r9 � s c C s | j S )z;The filter which the jail is using to monitor log files. )r r r r r �filter� s z Jail.filterc C s | j S )z2Actions object used to manage actions for jail. )r) r r r r �actions� s z Jail.actionsc C s | j jp| jjS )z-A boolean indicating whether jail is idle. �r= �idler> r r r r r@ � s z Jail.idlec C s || j _|| j_d S r: r? r; r r r r@ � s �basicc C s^ | j j|d�}| jj|d�}|dkrNt| j �j�dd��� }| jpF| j||gS d|fd|fgS )zThe status of the jail. )�flavorZstatsZFilter� r ) r= �statusr> �typer �replacer" r r )r rB �fstatZastatr r r r rD � s �z Jail.statusc C s | j �� S )z-Retrieve whether queue has tickets to ban. )r �emptyr r r r �hasFailTickets� s zJail.hasFailTicketsc C s | j �|� dS )zQAdd a fail ticket to the jail. Used by filter to add a failure for banning. N)r Zput�r �ticketr r r � putFailTicket� s zJail.putFailTicketc C s. z| j �d�}|W S tjy( Y dS 0 dS )zTGet a fail ticket from the jail. Used by actions to get a failure for banning. FN)r �getr ZEmptyrJ r r r � getFailTicket� s zJail.getFailTicketc s� | j }|dkrd }|d ur$|||< n||v r2||= t�d||� |dkrrt|�||< |�|�rr| jd u rrt�d� |dv r�|d ur�t�|�||< |dv s�|�dd �d u �r�|dkr�d d � |d ur�|dkr�|� d �ng D �|d < |�d g ��t |�d d��}t ���r|f�fdd� }n&|�dd�}t |dd�}||fdd�}|�dd �d u�rf|d � |f� fdd� }|�dd �d u�r�|d �|f�fdd� }||d< d S )NrC zSet banTime.%s = %s� incrementzDban time increment is not available as long jail database is not set)�maxtime�rndtime)�formula�factorrP rQ � multipliers� evformularT c S s g | ] }t |��qS r )�int)�.0�ir r r � <listcomp>� � z(Jail.setBanTimeExtra.<locals>.<listcomp>� Z evmultipliersrS �1c s& | j | � | jt� �k r | jnd S )N���)�TimeZCountr )�ban� banFactor)rT r r �<lambda>� s z&Jail.setBanTimeExtra.<locals>.<lambda>rR z?ban.Time * (1<<(ban.Count if ban.Count<20 else 20)) * banFactorz~inline-conf-expr~�evalc S s t | jt|��S r: )�maxr^ rb )r_ r` rR r r r ra rZ rP c s t || �� �S r: )�min�r_ rU )rP r r ra rZ rQ c s || �t � � � S r: )�randomre )rQ r r ra rZ ) r r r r rM r9 r r Z str2seconds�splitrb r �compile)r �optr< �ber` rU rR r )rP rT rQ r �setBanTimeExtra� s@ , zJail.setBanTimeExtrac C s |d ur| j �|d �S | j S r: )r rM )r ri r r r �getBanTimeExtra s zJail.getBanTimeExtrac C s$ | j �d�r| j �dd�S | j�� S )z)Returns max possible ban-time of jail. rO rP r] )r rM r> � getBanTimer r r r � getMaxBanTime s ��zJail.getMaxBanTimeTc C sR �z | j du�r | j�d�r.d}|r8| �� }n | j�� }| j j| ||| jjj d�D ]�}zpd|_ | j� |� � |�rtW qR|�|�}t �� |�� }|dkr�|dkr�||8 }|dkr�|dkr�W qR| �|� W qR t�y } z&tjd|t�� tjkd� W Y d}~qRd}~0 0 qRW n@ t�yL } z&tjd |t�� tjkd� W Y d}~n d}~0 0 dS ) z5Restore any previous valid bans from the database. NrO )Zjail� forbantime�correctBanTimeZ maxmatchesTr] r zRestore ticket failed: %s��exc_infozRestore bans failed: %s)r9 r rM rn r> rm ZgetCurrentBansr= Z failManagerZ maxMatchesZrestoredZ_inIgnoreIPListZgetIDr �timeZgetTimerL � Exceptionr r$ �getEffectiveLevelr, r- )r rp ro rK ZbtmZdiftmr0 r r r �restoreCurrentBans s8 � �" �zJail.restoreCurrentBansc C s< t �d| j� | j�� | j�� | �� t �d| j� dS )z�Start the jail, by starting filter and actions threads. Once stated, also queries the persistent database to reinstate any valid bans. zStarting jail %rzJail %r startedN)r �debugr r= �startr> rv r r r r r rx = s z Jail.startc C s� |rt �d| j� | j| jfD ]f}z |r0|�� |r<|�� W q ty� } z,t jd|| j|t � � t j kd� W Y d}~q d}~0 0 q |r�t � d| j� dS )z9Stop the jail, by stopping filter and actions threads. zStopping jail %rz Stop %r of jail %r failed: %srq NzJail %r stopped) r rw r r= r> �stop�joinrt r$ ru r, r- r )r ry rz �objr0 r r r ry I s � z Jail.stopc C s | j �� p| j�� S )z?Check jail "isAlive" by checking filter and actions threads. )r= �isAliver> r r r r r| \ s z Jail.isAlive)r N)rA )N)T)TT) r � __module__� __qualname__�__doc__r# r r! r r3 r5 r7 �propertyr r9 �setterr= r> r@ rD rI rL rN rk rl rn rv rx ry r| r r r r r ' sD & - $ r )� __author__Z __copyright__Z __license__r, Zmathrf r r> r Zhelpersr r r r Zmytimer r �objectr r r r r �<module> s
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