OwlCyberSecurity - MANAGER
Edit File: files.cpython-39.pyc
a ���e�I � @ s d dl Z d dlZd dlmZ d dlmZ d dlmZ d dlm Z d dl m Z m Z d dl mZ d dlmZ d d lmZ d d lmZ d d lmZ d d lmZ G d d� dee�ZG dd� de�ZG dd� de�Z G dd� de�Z G dd� de e�Z G dd� de �Z dS )� N)�forms)�checks)�File)� ImageFile)�Storage�default_storage)�validate_file_name)�signals)�Field)�DeferredAttribute)� AltersData)� gettext_lazyc s� e Zd Z� fdd�Zdd� Zdd� Zdd� Zd d � Zd d � Zd d� Z e eee �Z e dd� �Z e dd� �Z e dd� �Zd%dd�Zde_d&dd�Zde_d'dd �Zde_e d d � �Zd d � Zd!d"� Zd#d$� Z� ZS )(� FieldFilec s, t � �d |� || _|| _|j| _d| _d S )NT)�super�__init__�instance�field�storage� _committed)�selfr r �name�� __class__� �^/home/gouroczh/virtualenv/pat/3.9/lib/python3.9/site-packages/django/db/models/fields/files.pyr s zFieldFile.__init__c C s t |d�r| j|jkS | j|kS )Nr )�hasattrr )r �otherr r r �__eq__ s zFieldFile.__eq__c C s t | j�S �N)�hashr �r r r r �__hash__ s zFieldFile.__hash__c C s | st d| jj ��d S )Nz2The '%s' attribute has no file associated with it.)� ValueErrorr r r r r r � _require_file' s �zFieldFile._require_filec C s0 | � � t| dd �d u r*| j�| jd�| _| jS )N�_file�rb)r# �getattrr �openr r$ r r r r � _get_file- s zFieldFile._get_filec C s || _ d S r �r$ �r �filer r r � _set_file3 s zFieldFile._set_filec C s | ` d S r r) r r r r � _del_file6 s zFieldFile._del_filec C s | � � | j�| j�S r )r# r �pathr r r r r r. ; s zFieldFile.pathc C s | � � | j�| j�S r )r# r �urlr r r r r r/ @ s z FieldFile.urlc C s$ | � � | js| jjS | j�| j�S r )r# r r+ �sizer r r r r r r0 E s zFieldFile.sizer% c C s< | � � t| dd �d u r,| j�| j|�| _n | j�|� | S �Nr$ )r# r& r r' r r+ )r �moder r r r' L s zFieldFile.openTc C sT | j �| j|�}| jj||| j jd�| _t| j| j j| j� d| _ |rP| j�� d S )N)� max_lengthT) r �generate_filenamer r �saver3 r �setattr�attnamer )r r �contentr5 r r r r5 [ s zFieldFile.savec C s^ | sd S t | d�r | �� | `| j�| j� d | _t| j| jj | j� d| _ |rZ| j� � d S )Nr$ F) r �closer+ r �deleter r6 r r r7 r r5 �r r5 r r r r: g s zFieldFile.deletec C s t | dd �}|d u p|jS r1 )r& �closedr* r r r r< { s zFieldFile.closedc C s t | dd �}|d ur |�� d S r1 )r& r9 r* r r r r9 � s zFieldFile.closec C s | j ddd | j| jd�S )NFT)r r< r r$ r r )r r r r r r r � __getstate__� s �zFieldFile.__getstate__c C s | j �|� | jj| _d S r )�__dict__�updater r )r �stater r r � __setstate__� s zFieldFile.__setstate__)r% )T)T)�__name__� __module__� __qualname__r r r! r# r( r, r- �propertyr+ r. r/ r0 r' Z alters_datar5 r: r< r9 r= rA � __classcell__r r r r r s2 r c s* e Zd ZdZd� fdd� Zdd� Z� ZS )�FileDescriptora� The descriptor for the file attribute on the model instance. Return a FieldFile when accessed so you can write code like:: >>> from myapp.models import MyModel >>> instance = MyModel.objects.get(pk=1) >>> instance.file.size Assign a file object on assignment so you can do:: >>> with open('/path/to/hello.world') as f: ... instance.file = File(f) Nc s� |d u r | S t � �||�}t|t�s,|d u rN| j�|| j|�}||j| jj< n�t|t�r�t|t �s�| j�|| j|j �}||_ d|_ ||j| jj< nHt|t �r�t |d�s�||_| j|_| jj|_nt|t �r�||jur�||_|j| jj S )NFr )r �__get__� isinstance�strr � attr_classr> r7 r r r r+ r r r r )r r �clsr+ �attrZ file_copyr r r rH � s$ zFileDescriptor.__get__c C s ||j | jj< d S r )r> r r7 )r r �valuer r r �__set__� s zFileDescriptor.__set__)N)rB rC rD �__doc__rH rO rF r r r r rG � s 6rG c s� e Zd ZeZeZed�Zd � fdd� Z � fdd�Z dd � Z d d � Z � fd d �Z dd� Z� fdd�Z� fdd�Z� fdd�Zdd� Zdd� Z� fdd�Z� ZS ) � FileFieldr N� c s� d|v | _ |pt| _t| j�rV| j| _| �� | _t| jt�sVtd| jj tj tj f ��|| _ |� dd� t � j||fi |�� d S )NZ primary_keyz/%s.storage must be a subclass/instance of %s.%sr3 �d )�_primary_key_set_explicitlyr r �callable�_storage_callablerI r � TypeErrorr rD rC � upload_to� setdefaultr r )r � verbose_namer rX r �kwargsr r r r � s" ��� zFileField.__init__c s& g t � jf i |���| �� �| �� �S r )r �check�_check_primary_key�_check_upload_to�r r[ r r r r\ s ���zFileField.checkc C s( | j r tjd| jj | dd�gS g S d S )Nz/'primary_key' is not a valid argument for a %s.z fields.E201)�obj�id)rT r �Errorr rB r r r r r] s ��� z FileField._check_primary_keyc C s< t | jt�r4| j�d�r4tjd| jj | ddd�gS g S d S )N�/zH%s's 'upload_to' argument must be a relative path, not an absolute path.z fields.E202zRemove the leading slash.)r` ra �hint)rI rX rJ � startswithr rb r rB r r r r r^ s ��� zFileField._check_upload_toc sZ t � �� \}}}}|�d�dkr&|d= | j|d< t| d| j�}|turN||d< ||||fS )Nr3 rS rX rV r )r � deconstruct�getrX r& r r )r r r. �argsr[ r r r r rf $ s zFileField.deconstructc C s dS )NrQ r r r r r �get_internal_type. s zFileField.get_internal_typec s t � �|�}|d u rd S t|�S r )r �get_prep_valuerJ )r rN r r r rj 1 s zFileField.get_prep_valuec s0 t � �||�}|r,|js,|j|j|jdd� |S )NF)r5 )r �pre_saver r5 r r+ )r Zmodel_instance�addr+ r r r rk 9 s zFileField.pre_savec s. t � j||fi |�� t|| j| �| �� d S r )r �contribute_to_classr6 r7 �descriptor_class�r rL r r[ r r r rm @ s z FileField.contribute_to_classc C sR t | j�r| �||�}n"tj�� �t| j��}t�||�}t|dd�}| j � |�S )a Apply (if callable) or prepend (if a string) upload_to to the filename, then delegate further processing of the name to the storage backend. Until the storage layer, all file paths are expected to be Unix style (with forward slashes). T)Zallow_relative_path) rU rX �datetime�now�strftimerJ � posixpath�joinr r r4 )r r �filename�dirnamer r r r4 D s zFileField.generate_filenamec C s |d urt || j|pd� d S )NrR )r6 r )r r �datar r r �save_form_dataS s zFileField.save_form_datac s t � jf i tj| jd�|���S )N)� form_classr3 )r � formfieldr rQ r3 r_ r r r rz ] s ���zFileField.formfield)NNrR N)rB rC rD r rK rG rn �_� descriptionr r\ r] r^ rf ri rj rk rm r4 rx rz rF r r r r rQ � s � rQ c s e Zd ZdZ� fdd�Z� ZS )�ImageFileDescriptorz� Just like the FileDescriptor, but for ImageFields. The only difference is assigning the width/height to the width_field/height_field, if appropriate. c s: |j �| jj�}t� �||� |d ur6| jj|dd� d S )NT)�force)r> rg r r7 r rO �update_dimension_fields)r r rN Z previous_filer r r rO m s zImageFileDescriptor.__set__)rB rC rD rP rO rF r r r r r} g s r} c s e Zd Zd� fdd� Z� ZS )�ImageFieldFileTc s t | d�r| `t� �|� d S )N�_dimensions_cache)r r� r r: r; r r r r: s zImageFieldFile.delete)T)rB rC rD r: rF r r r r r� ~ s r� c sp e Zd ZeZeZed�Zd� fdd� Z � fdd�Z dd� Z � fd d �Z � fd d �Z ddd�Z� fdd�Z� ZS )� ImageField�ImageNc s( || | _ | _t� j||fi |�� d S r )� width_field� height_fieldr r )r rZ r r� r� r[ r r r r � s zImageField.__init__c s g t � jf i |���| �� �S r )r r\ � _check_image_library_installedr_ r r r r\ � s ��zImageField.checkc C s@ zddl m} W n& ty6 tjdd| dd�g Y S 0 g S d S )Nr )r� z6Cannot use ImageField because Pillow is not installed.z]Get Pillow at https://pypi.org/project/Pillow/ or run command "python -m pip install Pillow".z fields.E210)rd r` ra )ZPILr� � ImportErrorr rb )r r� r r r r� � s �� z)ImageField._check_image_library_installedc s> t � �� \}}}}| jr"| j|d< | jr2| j|d< ||||fS )Nr� r� )r rf r� r� )r r r. rh r[ r r r rf � s zImageField.deconstructc s4 t � j||fi |�� |jjs0tjj| j|d� d S )N)Zsender)r rm �_metaZabstractr Z post_init�connectr ro r r r rm � s z ImageField.contribute_to_classFc O s� | j p | j}|r | j|jvr dS t|| j�}|s8|s8dS | j rLt|| j � p^| jo^t|| j� }|rn|sndS |r�|j}|j} nd}d} | j r�t|| j |� | jr�t|| j| � dS )a Update field's width and height fields, if defined. This method is hooked up to model's post_init signal to update dimensions after instantiating a model instance. However, dimensions won't be updated if the dimensions fields are already populated. This avoids unnecessary recalculation when loading an object from the database. Dimensions can be forced to update with force=True, which is how ImageFileDescriptor.__set__ calls this method. N)r� r� r7 r> r& �width�heightr6 ) r r r~ rh r[ Zhas_dimension_fieldsr+ Zdimension_fields_filledr� r� r r r r � s( � z"ImageField.update_dimension_fieldsc s t � jf i dtji|���S )Nry )r rz r r� r_ r r r rz � s ���zImageField.formfield)NNNN)F)rB rC rD r� rK r} rn r{ r| r r\ r� rf rm r rz rF r r r r r� � s � 9r� ) rp rs �djangor Z django.corer Zdjango.core.files.baser Zdjango.core.files.imagesr Zdjango.core.files.storager r Zdjango.core.files.utilsr Zdjango.db.modelsr Zdjango.db.models.fieldsr Z django.db.models.query_utilsr Zdjango.db.models.utilsr Zdjango.utils.translationr r{ r rG rQ r} r� r� r r r r �<module> s( I