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a vyg�4 � @ s� d Z ddlZddlZddlZddlZddlmZ ddlmZ ddlmZ g d�Z dd� Z e � Z G d d � d e j �Z G d d � d e�ZejZejZe�� jZe�� jZdS ) z�JSON support for message types. Public classes: MessageJSONEncoder: JSON encoder for message objects. Public functions: encode_message: Encodes a message in to a JSON string. decode_message: Merge from a JSON string in to a message. � N)� message_types)�messages)�util)�ALTERNATIVE_CONTENT_TYPES� CONTENT_TYPE�MessageJSONEncoder�encode_message�decode_message� ProtoJsonc C s� d} dD ]t}zBt |i i d�}t|d�sBd| }t�|� t|��n |W S W q tyz } z| sf|} W Y d}~qd}~0 0 qt�d� | �dS )a Try to load a valid json module. There are more than one json modules that might be installed. They are mostly compatible with one another but some versions may be different. This function attempts to load various json modules in a preferred order. It does a basic check to guess if a loaded version of json is compatible. Returns: Compatible json module. Raises: ImportError if there are no json modules or the loaded json module is not compatible with ProtoRPC. N)�jsonZ simplejsonr � JSONEncoderz1json library "%s" is not compatible with ProtoRPCz0Must use valid json library (json or simplejson))� __import__�hasattr�logging�warning� ImportError�error)Zfirst_import_error� module_name�module�message�err� r �H/opt/gsutil/third_party/apitools/apitools/base/protorpclite/protojson.py�_load_json_module/ s" �� r c s. e Zd ZdZd� fdd� Z� fdd�Z� ZS )r ziMessage JSON encoder class. Extension of JSONEncoder that can build JSON from a message object. Nc s( t t| �jf i |�� |p t�� | _dS )zVConstructor. Args: protojson_protocol: ProtoJson instance. N)�superr �__init__r � get_default�'_MessageJSONEncoder__protojson_protocol)�self�protojson_protocol�kwargs�� __class__r r r ] s �zMessageJSONEncoder.__init__c s� t |tj�rt|�S tjr.t |t�r.|�d�S t |tj�r�i }|� � D ]2}|� |j �}|dg dfvrF| j � ||�||j < qF|�� D ]}|�|�\}}|||< q�|S tt| ��|�S )z�Return dictionary instance from a message object. Args: value: Value to get dictionary for. If not encodable, will call superclasses default method. �utf8Nr )� isinstancer �Enum�str�six�PY3�bytes�decode�Message� all_fields�get_assigned_value�namer � encode_field�all_unrecognized_fields�get_unrecognized_field_infor r �default)r �value�result�field�itemZ unknown_keyZunrecognized_field�_r! r r r2 g s$ � � zMessageJSONEncoder.default)N)�__name__� __module__� __qualname__�__doc__r r2 � __classcell__r r r! r r W s r c @ sd e Zd ZdZdZg d�Zdd� Zdd� Zdd � Zd d � Z d d � Z dd� Z e dd� �Z e dd� �ZdS )r a ProtoRPC JSON implementation class. Implementation of JSON based protocol used for serializing and deserializing message objects. Instances of remote.ProtocolConfig constructor or used with remote.Protocols.add_protocol. See the remote.py module for more details. zapplication/json)zapplication/x-javascriptztext/javascriptztext/x-javascriptz text/x-jsonz text/jsonc C s\ t |tj�r.|jr"dd� |D �}qXt�|�}n*t |tj�rX|jrPdd� |D �}n|�� }|S )z�Encode a python field value to a JSON value. Args: field: A ProtoRPC field instance. value: A python value supported by field. Returns: A JSON serializable value appropriate for field. c S s g | ]}t �|��qS r )�base64� b64encode)�.0�byter r r � <listcomp>� � z*ProtoJson.encode_field.<locals>.<listcomp>c S s g | ] }|� � �qS r )� isoformat)r? �ir r r rA � rB ) r$ r � BytesField�repeatedr= r> r � DateTimeFieldrC )r r5 r3 r r r r/ � s zProtoJson.encode_fieldc C s |� � tj|t| d�S )a# Encode Message instance to JSON string. Args: Message instance to encode in to JSON string. Returns: String encoding of Message instance in protocol JSON format. Raises: messages.ValidationError if message is not initialized. )�clsr )�check_initializedr �dumpsr )r r r r r r � s �zProtoJson.encode_messagec C s: t �|�}|�� s|� S t�|�}| �||�}|�� |S )a� Merge JSON structure to Message instance. Args: message_type: Message to decode data to. encoded_message: JSON encoded version of message. Returns: Decoded instance of message_type. Raises: ValueError: If encoded_message is not valid JSON. messages.ValidationError if merged message is not initialized. )r' � ensure_str�stripr �loads� _ProtoJson__decode_dictionaryrI )r � message_type�encoded_message� dictionaryr r r r r � s zProtoJson.decode_messagec C s� t |t�rtjjS t |tj�r&tjjS t |t�r8tjj S t |tj �rLtjj S t |t t f�r�dtjjtjj tjj g}d}|D ]@}| �|�}z|�|�}W n ty� d}Y n0 ||krz|}qz|| S dS )a, Find the messages.Variant type that describes this value. Args: value: The value whose variant type is being determined. Returns: The messages.Variant value that best describes value's type, or None if it's a type we don't know how to handle. Nr ���)r$ �boolr �Variant�BOOLr' � integer_types�INT64�float�DOUBLE� string_types�STRING�list�tuple�_ProtoJson__find_variant�index� IndexError)r r3 Zvariant_priorityZchosen_priority�v�variant�priorityr r r Z__find_variant� s2 � zProtoJson.__find_variantc C s� |� }t �|�D �]�\}}|du rFz|�|� W q tyB Y q0 qz|�|�}W n2 ty� | �|�}|r~|�|||� Y qY n0 t|t j �}d} |j �r<t|t �s�|g}g } |D ]R} z | � || �} |r�| du r�W q�W n" t jy� |s� d} Y q�Y n0 | �| � q�t||j| � | r| �|�}|r|�|||� q|g k�rHqzt||j| � ||�� W q t j�y� |�s|� | �|�}|�r�|�|||� Y q0 q|S )a Merge dictionary in to message. Args: message: Message to merge dictionary in to. dictionary: Dictionary to extract information from. Dictionary is as parsed from JSON. Nested objects will also be dictionaries. NFT)r' � iteritems�reset�AttributeError� field_by_name�KeyErrorr^ �set_unrecognized_fieldr$ r � EnumFieldrF r\ � decode_field� DecodeError�append�setattrr. ) r rO rQ r �keyr3 r5 rb Z is_enum_fieldZis_unrecognized_fieldZ valid_valuer6 ra r r r Z__decode_dictionary sb z ProtoJson.__decode_dictionaryc C s� t |tj�rBz |�|�W S ty< t�d|p2d ��Y n0 �n>t |tj�r�z t�|�W S t j tfy� } zt�d| ��W Y d}~n d}~0 0 n�t |t j �r�zt j|dd�W S ty� } zt�|��W Y d}~n d}~0 0 n�t |tj��rt|jtj��r| �|j|�S t |tj��rLt |tjtjf��rLz t|�W S Y n0 n4t |tj��r�t |tj��r�z t|�W S Y n0 |S )z�Decode a JSON value to a python value. Args: field: A ProtoRPC field instance. value: A serialized JSON value. Return: A Python value compatible with field. zInvalid enum value "%s"� zBase64 decoding error: %sNT)� truncate_time)r$ r rj �type� TypeErrorrl rE r= � b64decode�binascii�Errorr rG r �decode_datetime� ValueError� MessageField� issubclassr+ rN � FloatFieldr' rV rZ rX � IntegerField�int)r r5 r3 r r r r rk D sH � & " �� � zProtoJson.decode_fieldc C s. zt jW S ty( t � t _t j Y S 0 dS )z!Get default instanceof ProtoJson.N)r �_ProtoJson__defaultrf r r r r r u s zProtoJson.get_defaultc C s t | t�std��| t_dS )zhSet the default instance of ProtoJson. Args: protocol: A ProtoJson instance. z#Expected protocol of type ProtoJsonN)r$ r rs r~ )�protocolr r r � set_default~ s zProtoJson.set_defaultN)r8 r9 r: r; r r r/ r r r^ rN rk � staticmethodr r� r r r r r � s &D1 r )r; r= ru r r' �apitools.base.protorpcliter r r �__all__r r r r �objectr r r r r r r r r r �<module> s$ $1
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