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편집 파일: url.cpython-37.pyc
B ��4]�$ � @ s� d Z ddlZddlmZ ddlmZ ddlmZ ddlmZ dd lm Z G d d � d e �Z d d � Z dd� Z dd� Zdd� Zdd� ZdS )a Provides the :class:`~sqlalchemy.engine.url.URL` class which encapsulates information about a database connection specification. The URL object is created automatically when :func:`~sqlalchemy.engine.create_engine` is called with a string argument; alternatively, the URL is a public-facing construct which can be used directly and is also accepted directly by ``create_engine()``. � N� )�Dialect� )�exc)�util)�plugins)�registryc @ s� e Zd ZdZd!dd�Zd"dd�Zdd � Zd d � Zd d � Zdd� Z dd� Z e dd� �Z e j dd� �Z dd� Zdd� Zdd� Zdd � Zd d � Zg fd d �ZdS )#�URLaX Represent the components of a URL used to connect to a database. This object is suitable to be passed directly to a :func:`~sqlalchemy.create_engine` call. The fields of the URL are parsed from a string by the :func:`.make_url` function. the string format of the URL is an RFC-1738-style string. All initialization parameters are available as public attributes. :param drivername: the name of the database backend. This name will correspond to a module in sqlalchemy/databases or a third party plug-in. :param username: The user name. :param password: database password. :param host: The name of the host. :param port: The port number. :param database: The database name. :param query: A dictionary of options to be passed to the dialect and/or the DBAPI upon connect. Nc C sF || _ || _|| _|| _|d k r,t|�| _nd | _|| _|p>i | _d S )N)� drivername�username�password_original�host�int�port�database�query)�selfr r �passwordr r r r � r �H/opt/alt/python37/lib64/python3.7/site-packages/sqlalchemy/engine/url.py�__init__8 s z URL.__init__Tc s� � j d }� jd k rN|t� j�7 }� jd k rF|d|r8dnt� j� 7 }|d7 }� jd k r|d� jkrr|d� j 7 }n |� j7 }� jd k r�|dt� j� 7 }� jd k r�|d� j 7 }� jr�t � j�}|� � |dd� � fd d �|D �� 7 }|S ) Nz://�:z***�@z[%s]�/�?�&c 3 s0 | ](}t �� j| �D ]}d ||f V qqdS )z%s=%sN)r �to_listr )�.0�k�element)r r r � <genexpr>c s z$URL.__to_string__.<locals>.<genexpr>) r r �_rfc_1738_quoter r r �strr r �list�sort�join)r � hide_password�s�keysr )r r � __to_string__M s, zURL.__to_string__c C s | j dd�S )NF)r& )r) )r r r r �__str__i s z URL.__str__c C s | � � S )N)r) )r r r r �__repr__l s z URL.__repr__c C s t t| ��S )N)�hashr" )r r r r �__hash__o s z URL.__hash__c C s^ t |t�o\| j|jko\| j|jko\| j|jko\| j|jko\| j|jko\| j|jko\| j|jkS )N) � isinstancer r r r r r r r )r �otherr r r �__eq__r s z URL.__eq__c C s | |k S )Nr )r r/ r r r �__ne__~ s z URL.__ne__c C s | j d krd S t�| j �S d S )N)r r Z text_type)r r r r r � s z URL.passwordc C s || _ d S )N)r )r r r r r r � s c C s$ d| j kr| j S | j �d�d S d S )N�+r )r �split)r r r r �get_backend_name� s zURL.get_backend_namec C s( d| j kr| �� jS | j �d�d S d S )Nr2 r )r � get_dialectZdriverr3 )r r r r �get_driver_name� s zURL.get_driver_namec s8 t ��j�dd��}|� �dg �7 }� �fdd�|D �S )NZpluginr r c s g | ]}t �|��� ��qS r )r �load)r Z plugin_name)�kwargsr r r � <listcomp>� s z,URL._instantiate_plugins.<locals>.<listcomp>)r r r �get)r r8 Z plugin_namesr )r8 r r �_instantiate_plugins� s zURL._instantiate_pluginsc C sZ d| j kr| j }n| j �dd�}t�|�}t|d�rRt|jt�rRt|jt �rR|jS |S dS )z�Return the "entry point" dialect class. This is normally the dialect itself except in the case when the returned class implements the get_dialect_cls() method. r2 �.�dialectN) r �replacer r7 �hasattrr. r= �type� issubclassr )r �name�clsr r r �_get_entrypoint� s zURL._get_entrypointc C s | � � }|�| �}|S )zfReturn the SQLAlchemy database dialect class corresponding to this URL's driver name. )rD Zget_dialect_cls)r Z entrypointZ dialect_clsr r r r5 � s zURL.get_dialectc K sl i }dddddg}xT|D ]L}|r,|� d�}n||kr>|| }n|}|dk rt| |d�rt| |�||< qW |S ) a2 Translate url attributes into a dictionary of connection arguments. Returns attributes of this url (`host`, `database`, `username`, `password`, `port`) as a plain dictionary. The attribute names are used as the keys by default. Unset or false attributes are omitted from the final dictionary. :param \**kw: Optional, alternate key names for url attributes. :param names: Deprecated. Same purpose as the keyword-based alternate names, but correlates the name to the original positionally. r r r r r r NF)�pop�getattr)r �names�kwZ translatedZattribute_namesZsnamerB r r r �translate_connect_args� s zURL.translate_connect_args)NNNNNN)T)�__name__� __module__� __qualname__�__doc__r r) r* r+ r- r0 r1 �propertyr �setterr4 r6 r; rD r5 rI r r r r r s* r c C s t | tj�rt| �S | S dS )z�Given a string or unicode instance, produce a new URL instance. The given string is parsed according to the RFC 1738 spec. If an existing URL object is passed, just returns the object. N)r. r � string_types�_parse_rfc1738_args)Z name_or_urlr r r �make_url� s rR c C sX t �dt j�}|�| �}|d k �rF|�� }|d d k r�|d �dd�}|d |d< t|�dkr�i }xbt�|d �D ]J\}}tj r�|� d�}||kr�t� || �||< || � |� qr|||< qrW q�d }nd }||d< |d d k r�t |d �|d < |d d k �rt |d �|d < |�d �}|�d �} |�p*| |d < |�d�} t| f|�S t�d| ��d S )Na� (?P<name>[\w\+]+):// (?: (?P<username>[^:/]*) (?::(?P<password>.*))? @)? (?: (?: \[(?P<ipv6host>[^/]+)\] | (?P<ipv4host>[^/:]+) )? (?::(?P<port>[^/]*))? )? (?:/(?P<database>.*))? r r r r r �asciir r r �ipv4host�ipv6hostr rB z,Could not parse rfc1738 URL from string '%s')�re�compile�X�match� groupdictr3 �lenr � parse_qslZpy2k�encoder �append�_rfc_1738_unquoterE r r � ArgumentError) rB �pattern�m� components�tokensr �key�valuerT rU r r r rQ � s@ rQ c C s t �ddd� | �S )Nz[:@/]c S s dt | �d�� S )Nz%%%Xr )�ord�group)rb r r r �<lambda>( � z!_rfc_1738_quote.<locals>.<lambda>)rV �sub)�textr r r r! ' s r! c C s t �| �S )N)r �unquote)rl r r r r_ + s r_ c C sH t �d| �}|d k r@|�dd�\} }tt�|��}t| f|�� S d S d S )Nz (\w+)://(.*)r r )rV rY rh �dictr r\ r )rB rb �args�optsr r r �_parse_keyvalue_args/ s rq )rM rV Z interfacesr � r r Zdialectsr r �objectr rR rQ r! r_ rq r r r r �<module> s D =