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o �b� � @ s2 d Z ddlmZ ddlmZ G dd� dej�ZdS )z@ Chop up shoutcast stream into MP3s and metadata, if available. � )� copyright)�httpc @ s| e Zd ZdZdej Zd dd�Zdd� Zdd � Z d d � Z d d � Z dd� Z dd� Z dd� Zdd� Zdd� Zdd� Zdd� Zd S ) �ShoutcastClientz� Shoutcast HTTP stream. Modes can be 'length', 'meta' and 'mp3'. See U{http://www.smackfu.com/stuff/programming/shoutcast.html} for details on the protocol. zTwisted Shoutcast client �/c C s" || _ d| _d | _d| _d| _d S )NF�mp3� )�path� got_metadata�metaint�metamode� databuffer)�selfr � r �=/usr/lib/python3/dist-packages/twisted/protocols/shoutcast.py�__init__ s zShoutcastClient.__init__c C s4 | � d| j� | �d| j� | �dd� | �� d S )N�GETz User-Agentz Icy-MetaData�1)� sendCommandr � sendHeader� userAgent� endHeaders�r r r r �connectionMade s z ShoutcastClient.connectionMadec C s> | j s|rt|�dd��dkr|�ddd�}tj�| |� d S )Nz: � �:)� firstLine�len�split�replacer � HTTPClient� lineReceived)r �liner r r r % s z ShoutcastClient.lineReceivedc C s$ |� � dkrt|�| _d| _d S d S )Nz icy-metaintT)�lower�intr r )r �key�valuer r r � handleHeader, s �z ShoutcastClient.handleHeaderc C s | j r | j| _d S | j| _d S )N)r � handleResponsePart_with_metadata�handleResponsePart� gotMP3Datar r r r �handleEndHeaders1 s z ShoutcastClient.handleEndHeadersc C s< | j |7 _ | j r t| d| j �� }|rd S | j s d S d S )Nz handle_%s)r �getattrr )r �data�stopr r r r' ; s �z0ShoutcastClient.handleResponsePart_with_metadatac C s. t | jd �d | _| jdd � | _d| _d S )Nr � r �meta)�ordr � remainingr r r r r � handle_lengthB s z ShoutcastClient.handle_lengthc C sF t | j�| jkr!| �| jd | j� � | j| jd � | _d| _d S dS )N�lengthr )r r r r) r r r r r � handle_mp3G s zShoutcastClient.handle_mp3c C sV t | j�| jkr)| jr| jd | j� }| �| �|�� | j| jd � | _d| _d S dS )Nr r )r r r1 � gotMetaData� parseMetadatar �r r, r r r � handle_metaO s zShoutcastClient.handle_metac C sl g }|� d�D ],}|�� �dd�}|sq|� dd�\}}|�d�r,|�d�r,|dd� }|�||f� q|S )N�;� r �=r �'���)r �stripr � startswith�endswith�append)r r, r/ �chunkr$ r% r r r r6 Y s z ShoutcastClient.parseMetadatac C � t d��)z�Called with a list of (key, value) pairs of metadata, if metadata is available on the server. Will only be called on non-empty metadata. �implement in subclass��NotImplementedError)r �metadatar r r r5 e s zShoutcastClient.gotMetaDatac C rC )z Called with chunk of MP3 data.rD rE r7 r r r r) m s zShoutcastClient.gotMP3DataN)r )�__name__� __module__� __qualname__�__doc__r �versionr r r r r& r* r' r2 r4 r8 r6 r5 r) r r r r r s r N)rK �twistedr � twisted.webr r r r r r r �<module> s
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