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o ;ji � @ s4 d Z ddlZddlZddlZddlZddlZddlZddlZddl m Z ddl m Z e� � Z G dd� de�ZG dd� de�Zz ddlZddlZW n eyU d \ZZY nw G d d � d e�ZG d d � d e�ZG dd� de�ZG dd� dej�ZG dd� dej�ZG dd� de�ZG dd� de�Z G dd� de�Z dS )z2Site services for use with a Web Site Process Bus.� N)� text_or_bytes)�ntobc @ s. e Zd ZdZdZ dd� Zdd� Zdd� ZdS ) � SimplePluginzCPlugin base class which auto-subscribes methods for known channels.Nc C s || _ d S �N��bus��selfr � r �L/opt/saltstack/salt/lib/python3.10/site-packages/cherrypy/process/plugins.py�__init__( � zSimplePlugin.__init__c C �4 | j jD ]}t| |d�}|dur| j �||� qdS )z>Register this object as a (multi-channel) listener on the bus.N)r � listeners�getattr� subscribe�r Zchannel�methodr r r r + � ��zSimplePlugin.subscribec C r )z0Unregister this object as a listener on the bus.N)r r r � unsubscriber r r r r 3 r zSimplePlugin.unsubscribe)�__name__� __module__� __qualname__�__doc__r r r r r r r r r ! s r c @ s� e Zd ZdZi Z i Z ee��� D ]\Z Z e � d�r$e � d�s$e ee < q[ [ dd� Z ddd�Z d d � Zd d � Zd d� Zddd�Zddd�Zdd� ZdS )� SignalHandlera� Register bus channels (and listeners) for system signals. You can modify what signals your application listens for, and what it does when it receives signals, by modifying :attr:`SignalHandler.handlers`, a dict of {signal name: callback} pairs. The default set is:: handlers = {'SIGTERM': self.bus.exit, 'SIGHUP': self.handle_SIGHUP, 'SIGUSR1': self.bus.graceful, } The :func:`SignalHandler.handle_SIGHUP`` method calls :func:`bus.restart()<cherrypy.process.wspbus.Bus.restart>` if the process is daemonized, but :func:`bus.exit()<cherrypy.process.wspbus.Bus.exit>` if the process is attached to a TTY. This is because Unix window managers tend to send SIGHUP to terminal windows when the user closes them. Feel free to add signals which are not available on every platform. The :class:`SignalHandler` will ignore errors raised from attempting to register handlers for unknown signals. ZSIGZSIG_c C sr || _ | j j| j| j jd�| _tjd d� dkr/| jd= | j j| jd< | j �d� | j| jd< i | _ t � � | _ d S )N)�SIGTERM�SIGHUP�SIGUSR1� �javar �SIGUSR2zASIGUSR1 cannot be set on the JVM platform. Using SIGUSR2 instead.�SIGINT) r �exit� handle_SIGHUP�graceful�handlers�sys�platform�log�_jython_SIGINT_handler�_previous_handlers�os�getpid� _original_pidr r r r r _ s � zSignalHandler.__init__Nc C s | j �d� | j �� d S )Nz%Keyboard Interrupt: shutting down bus)r r( r" )r �signum�framer r r r) r s z$SignalHandler._jython_SIGINT_handlerc C s | j t�� kot�tj�� � S )a� Return boolean indicating if the current process is running as a daemon. The criteria to determine the `daemon` condition is to verify if the current pid is not the same as the one that got used on the initial construction of the plugin *and* the stdin is not connected to a terminal. The sole validation of the tty is not enough when the plugin is executing inside other process like in a CI tool (Buildbot, Jenkins). )r- r+ r, �isattyr& �stdin�fileno�r r r r �_is_daemonizedw s �z SignalHandler._is_daemonizedc C s: | j �� D ]\}}z| �||� W q ty Y qw dS )z#Subscribe self.handlers to signals.N)r% �items� set_handler� ValueError)r �sig�funcr r r r � s ��zSignalHandler.subscribec C s� | j �� D ]Q\}}| j| }|du r | j�d| � tj}n | j�d||f � zt�||�}|du r?| jjd||f dd� W q tyV | jjd||f dd d � Y qw dS ) z'Unsubscribe self.handlers from signals.Nz Restoring %s handler to SIG_DFL.zRestoring %s handler %r.z?Restored old %s handler %r, but our handler was not registered.� ��levelz Unable to restore %s handler %r.�( T�r< � traceback) r* r5 �signalsr r( �_signal�SIG_DFL�signalr7 )r r. �handler�signameZ our_handlerr r r r � s. ��� � ���zSignalHandler.unsubscribec C s� t |t�rtt|d�}|du rtd| ��|}nz| j| }W n ty, td| ��w |}t�|| j�}|| j |< |durP| j � d| � | j � ||� dS dS )a= Subscribe a handler for the given signal (number or name). If the optional 'listener' argument is provided, it will be subscribed as a listener for the given signal's channel. If the given signal name or number is not available on the current platform, ValueError is raised. NzNo such signal: %rzListening for %s.) � isinstancer r rA r7 r@ �KeyErrorrC �_handle_signalr* r r( r )r rC Zlistenerr. rE �prevr r r r6 � s" � �zSignalHandler.set_handlerc C s* | j | }| j�d| � | j�|� dS )z?Python signal handler (self.set_handler subscribes it for you).zCaught signal %s.N)r@ r r( �publish)r r. r/ rE r r r rH � s z SignalHandler._handle_signalc C s< | � � r| j�d� | j�� dS | j�d� | j�� dS )z!Restart if daemonized, else exit.z+SIGHUP caught while daemonized. Restarting.z*SIGHUP caught but not daemonized. Exiting.N)r4 r r( �restartr" r3 r r r r# � s zSignalHandler.handle_SIGHUP�NNr )r r r r r% r@ �varsrA r5 �k�v� startswithr r) r4 r r r6 rH r# r r r r r < s& � r rL c @ sv e Zd ZdZddd�Zedd� �Zejdd� �Zedd � �Zejd d � �Zed d � �Z e jd d � �Z dd� Z de _ dS )�DropPrivilegesz�Drop privileges. uid/gid arguments not available on Windows. Special thanks to `Gavin Baker <http://antonym.org/2005/12/dropping-privileges-in-python.html>`_. Nc C s( t �| |� d| _|| _|| _|| _d S �NF)r r � finalized�uid�gid�umask)r r rV rT rU r r r r � � zDropPrivileges.__init__c C � | j S )zAThe uid under which to run. Availability: Unix. )�_uidr3 r r r rT � � zDropPrivileges.uidc C �H |d ur t d u r| jjddd� d }n t|t�r t �|�d }|| _d S )Nz'pwd module not available; ignoring uid.r: r; � )�pwdr r( rF r �getpwnamrY �r �valr r r rT � � � c C rX )zAThe gid under which to run. Availability: Unix. )�_gidr3 r r r rU � rZ zDropPrivileges.gidc C r[ )Nz'grp module not available; ignoring gid.r: r; r\ )�grpr r( rF r �getgrnamrb r_ r r r rU ra c C rX )z�The default permission mode for newly created files and directories. Usually expressed in octal format, for example, ``0644``. Availability: Unix, Windows. )�_umaskr3 r r r rV s zDropPrivileges.umaskc C sD |d ur zt j W n ty | jjddd� d }Y nw || _d S )Nz-umask function not available; ignoring umask.r: r; )r+ rV �AttributeErrorr r( re r_ r r r rV s �� c C s* dd� }| j r| jd u r| jd u s| j�d|� � nD| jd u r2| jd u r2ts)tr1| jjddd� n-| j�d|� � | jd urKt�| j� t� g � | jd urVt� | j� | j�d|� � | j rq| j d urp| j�d | j � n | j d u r| jjd dd� nt� | j �}| j�d || j f � d | _ d S ) Nc S s< d\} }t rt �t�� �d } trt�t�� �d }| |fS )z+Return the current (uid, gid) if available.rL r )r] �getpwuidr+ �getuidrc �getgrgid�getgid)�name�groupr r r � current_ids$ s z)DropPrivileges.start.<locals>.current_idsz"Already running as uid: %r gid: %rzuid/gid not setr: r; zStarted as uid: %r gid: %rzRunning as uid: %r gid: %rzumask already set to: %03oz umask not setzumask old: %03o, new: %03oT) rS rT rU r r( r] rc r+ �setgid� setgroups�setuidrV )r rm Z old_umaskr r r �start" s: ��� � � zDropPrivileges.start�M )NNN) r r r r r �propertyrT �setterrU rV rq �priorityr r r r rQ � s" ,rQ c @ sF e Zd ZdZ d dd�Zdd� Zde_eddddd � fd d ��Zd S )� Daemonizera� Daemonize the running script. Use this with a Web Site Process Bus via:: Daemonizer(bus).subscribe() When this component finishes, the process is completely decoupled from the parent environment. Please note that when this component is used, the return code from the parent process will still be 0 if a startup error occurs in the forked children. Errors in the initial daemonizing process still return proper exit codes. Therefore, if you use this plugin to daemonize, don't use the return code as an accurate indicator of whether the process fully started. In fact, that return code only indicates if the process successfully finished the first fork. � /dev/nullc C s( t �| |� || _|| _|| _d| _d S rR )r r r1 �stdout�stderrrS )r r r1 rx ry r r r r b s zDaemonizer.__init__c C sZ | j r | j�d� t�� dkr| jjdt�� dd� | �| j| j| j | jj� d| _ d S )NzAlready deamonized.� zHThere are %r active threads. Daemonizing now may cause strange failures.r: r; T) rS r r( � threading� active_count� enumerate� daemonizer1 rx ry r3 r r r rq j s �� zDaemonizer.start�A c C s d S r r )�msgr r r �<lambda>� s zDaemonizer.<lambda>c C s& t j�� t j�� d}td�D ]C}ddg| }zt�� }|dkr*||� t�d� W n tyJ } zt � |j t ||d d�� W Y d }~nd }~ww |dkrSt� � qt� d� t | d�} t |d �} t |d �} t�| �� t j�� � t�| �� t j�� � t�| �� t j�� � |d t�� � d S ) Nz>{sys.argv[0]}: fork #{n} failed: ({exc.errno}) {exc.strerror} r\ z Forking once.zForking twice.r rz )r& �exc�n�rza+zDaemonized to PID: %s)r& rx �flushry �ranger+ �fork�_exit�OSErrorr" �format�setsidrV �open�dup2r2 r1 r, ) r1 rx ry �loggerZ error_tmplr� r� �pidr� �si�soZser r r r~ } s6 � �&��� zDaemonizer.daemonizeN)rw rw rw ) r r r r r rq ru � staticmethodr~ r r r r rv Q s ��rv c @ s. e Zd ZdZdd� Zdd� Zde_dd� Zd S ) �PIDFilez!Maintain a PID file via a WSPBus.c C s t �| |� || _d| _d S rR )r r �pidfilerS )r r r� r r r r � s zPIDFile.__init__c C s� t �� }| jr| j�d|| jf � d S t| jd��}|�td| d�� W d � n1 s/w Y | j�d|| jf � d| _d S )Nz PID %r already written to %r.�wbz%s �utf8zPID %r written to %r.T) r+ r, rS r r( r� r� �writer )r r� �fr r r rq � s � z PIDFile.start�F c C sL zt �| j� | j�d| j � W d S ttfy � ty% Y d S w )NzPID file removed: %r.)r+ �remover� r r( �KeyboardInterrupt� SystemExit� Exceptionr3 r r r r" � s �z PIDFile.exitN)r r r r r rq ru r" r r r r r� � s r� c s( e Zd ZdZ� fdd�Zdd� Z� ZS )�PerpetualTimera A responsive subclass of threading.Timer whose run() method repeats. Use this timer only when you really need a very interruptible timer; this checks its 'finished' condition up to 20 times a second, which can results in pretty high CPU usage c s( |� dd�| _tt| �j|i |�� dS )z:Override parent constructor to allow 'bus' to be provided.r N)�popr �superr� r )r �args�kwargs�� __class__r r r � s zPerpetualTimer.__init__c C sh | j �| j� | j �� rd S z | j| ji | j�� W n ty2 | jr1| jj d| j ddd� � w q)NTz,Error in perpetual timer thread function %r.r= r> ) �finished�wait�interval�isSet�functionr� r� r� r r( r3 r r r �run� s" ����zPerpetualTimer.run)r r r r r r� � __classcell__r r r� r r� � s r� c s8 e Zd ZdZg i df� fdd� Zdd� Zdd� Z� ZS ) �BackgroundTaska� A subclass of threading.Thread whose run() method repeats. Use this class for most repeating tasks. It uses time.sleep() to wait for each interval, which isn't very responsive; that is, even if you call self.cancel(), you'll have to wait until the sleep() call finishes before the thread stops. To compensate, it defaults to being daemonic, which means it won't delay stopping the whole process. Nc s< t t| ��� || _|| _|| _|| _d| _|| _d| _ d S )NFT) r� r� r r� r� r� r� �runningr �daemon)r r� r� r� r� r r� r r r � s zBackgroundTask.__init__c C s d| _ d S rR )r� r3 r r r �cancel� r zBackgroundTask.cancelc C sx d| _ | j r:t�| j� | j sd S z | j| ji | j�� W n ty4 | jr3| jj d| j ddd� � w | j sd S d S )NTz,Error in background task thread function %r.r= r> ) r� �time�sleepr� r� r� r� r� r r( r3 r r r r� � s" ����zBackgroundTask.run)r r r r r r� r� r� r r r� r r� � s r� c @ sJ e Zd ZdZdZ dZ dZ d dd�Zdd� Zde_ d d � Z d d � Z dS )�MonitorzAWSPBus listener to periodically run a callback in its own thread.N�< c C s( t �| |� || _|| _d | _|| _d S r )r r �callback� frequency�threadrk )r r r� r� rk r r r r rW zMonitor.__init__c C sv | j dkr9| jp | jj}| jdu r/t| j | j| jd�| _|| j_| j�� | j� d| � dS | j� d| � dS dS )z0Start our callback in its own background thread.r Nr zStarted monitor thread %r.z"Monitor thread %r already started.) r� rk r� r r� r� r� r rq r( )r Z threadnamer r r rq $ s � �z Monitor.startr� c C s� | j du r| j�d| j p| jj� dS | j t�� ur=| j j}| j �� | j j s5| j�d| � | j � � | j�d| � d| _ dS )z+Stop our callback's background task thread.NzNo thread running for %s.z Joining %r�Stopped thread %r.) r� r r( rk r� r r{ �current_threadr� r� �join)r rk r r r �stop2 s �� z Monitor.stopc C s | � � | �� dS )z:Stop the callback's background task thread and restart it.N)r� rq r3 r r r r$ A s zMonitor.graceful)r� N) r r r r r� r� r� r rq ru r� r$ r r r r r� s r� c @ sz e Zd ZdZdZ dZ dZ ddd�Zdd� Zd e_ d d � Z e d d � �Z e dd� �Ze dd� �Ze dd� �Zdd� ZdS )� AutoreloaderaQ Monitor which re-executes the process when files change. This :ref:`plugin<plugins>` restarts the process (via :func:`os.execv`) if any of the files it monitors change (or is deleted). By default, the autoreloader monitors all imported modules; you can add to the set by adding to ``autoreload.files``:: cherrypy.engine.autoreload.files.add(myFile) If there are imported files you do *not* wish to monitor, you can adjust the ``match`` attribute, a regular expression. For example, to stop monitoring cherrypy itself:: cherrypy.engine.autoreload.match = r'^(?!cherrypy).+' Like all :class:`Monitor<cherrypy.process.plugins.Monitor>` plugins, the autoreload plugin takes a ``frequency`` argument. The default is 1 second; that is, the autoreloader will examine files once each second. Nrz �.*c C s* i | _ t� | _|| _t�| || j|� d S r )�mtimes�set�files�matchr� r r� )r r r� r� r r r r e s zAutoreloader.__init__c C s | j du ri | _t�| � dS )z2Start our own background task thread for self.run.N)r� r� r� rq r3 r r r rq k s zAutoreloader.startr� c C sB t t�| j�jttj�� ��}ttjj |�}t t dt| j |���S )z1Return a Set of sys.modules filenames to monitor.N) �filter�re�compiler� �listr& �modules�keys�map�getr� �_file_for_module)r Zsearch_mod_names�modsr r r �sysfilesr s �zAutoreloader.sysfilesc C s | � |�p | �|�S )z(Return the relevant file for the module.)�_archive_for_zip_module�_file_for_file_module��cls�moduler r r r� { s �z Autoreloader._file_for_modulec C s z| j jW S ty Y dS w )z7Return the archive filename for the module if relevant.N)� __loader__�archiverf )r� r r r r� � s �z$Autoreloader._archive_for_zip_modulec C s* z |j o | �|j �W S ty Y dS w )z Return the file for the module.N)�__file__�_make_absoluterf r� r r r r� � s �z"Autoreloader._file_for_file_modulec C s& t j�| �r| S t j�t j�t| ��S )z8Ensure filename is absolute to avoid effect of os.chdir.)r+ �path�isabs�normpathr� �_module__file__base)�filenamer r r r� � s �zAutoreloader._make_absolutec C s� | � � | jB D ]a}|rh|�d�r|dd� }| j�|d�}|du r"qzt�|�j}W n ty5 d}Y nw || jvrA|| j|< q|du sI||krh| j � d| � | j � � | j � d| j j � | j �� dS qdS )z:Reload the process if registered files have been modified.z.pycN���r z Restarting because %s changed.r� )r� r� �endswithr� r� r+ �stat�st_mtimer� r r( r� r� rk rK )r r� Zoldtime�mtimer r r r� � s4 � � � ��zAutoreloader.run)rz r� )r r r r r� r� r� r rq ru r� � classmethodr� r� r� r� r� r� r r r r r� G s* r� c @ s: e Zd ZdZdZ dd� Zdd� Zdd� Zd d � ZeZ dS ) � ThreadManagera� Manager for HTTP request threads. If you have control over thread creation and destruction, publish to the 'acquire_thread' and 'release_thread' channels (for each thread). This will register/unregister the current thread and publish to 'start_thread' and 'stop_thread' listeners in the bus as needed. If threads are created and destroyed by code you do not control (e.g., Apache), then, at the beginning of every HTTP request, publish to 'acquire_thread' only. You should not publish to 'release_thread' in this case, since you do not know whether the thread will be re-used or not. The bus will call 'stop_thread' listeners for you when it stops. Nc C s^ i | _ t�| |� | jj�dt� � | jj�dt� � | jj�dt� � | jj�dt� � d S )N�acquire_thread� start_thread�release_thread� stop_thread)�threadsr r r r � setdefaultr� r r r r r � s zThreadManager.__init__c C s@ t �� }|| jvr t| j�d }|| j|< | j�d|� dS dS )z�Run 'start_thread' listeners for the current thread. If the current thread has already been seen, any 'start_thread' listeners will not be run again. rz r� N)�_thread� get_identr� �lenr rJ �r Z thread_ident�ir r r r� � s �z ThreadManager.acquire_threadc C s4 t �� }| j�|d�}|dur| j�d|� dS dS )z;Release the current thread and run 'stop_thread' listeners.Nr� )r� r� r� r� r rJ r� r r r r� � s �z ThreadManager.release_threadc C s0 | j �� D ] \}}| j�d|� q| j �� dS )z8Release all threads and run all 'stop_thread' listeners.r� N)r� r5 r rJ �clearr� r r r r� � s zThreadManager.stop) r r r r r� r r� r� r� r$ r r r r r� � s r� ) r r+ r� rC rA r& r� r{ r� Zcherrypy._cpcompatr r �getcwdr� �objectr r r] rc � ImportErrorrQ rv r� �Timerr� �Threadr� r� r� r� r r r r �<module> s8 �wZ *8t
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