42 lines
1.8 KiB
Python
42 lines
1.8 KiB
Python
'''
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StreamedRequests. A simple library for streaming HTTP requests
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Copyright (C) 2019 Kevin Froman https://chaoswebs.net/
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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'''
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import threading
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from . import responsesize
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def __run_callback(data, sync, callback=None):
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if callback is None: # Do nothing if there is no callback
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return
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if sync: # If synchronous (default), run callback normally
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callback(data)
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else: # If async, spawn a new thread (not good for CPU-bound cases)
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threading.Thread(target=callback, args=(data,)).start()
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def __do_download(req, max_size, chunk_size, callback, sync):
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chunk_count = responsesize.SizeValidator(max_size) # Class to verify if the stream is staying within the max_size
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ret_data = b''
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if chunk_size == 0:
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raise ValueError("Chunk size cannot be zero")
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for chunk in req.iter_content(chunk_size=chunk_size):
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if max_size > 0:
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chunk_count.add(chunk_size)
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if not callback is None:
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__run_callback(chunk, sync, callback)
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ret_data += chunk
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if 'text' in req.headers['content-type']:
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ret_data = ret_data.decode('utf-8')
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return (req, ret_data) |