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46 lines
1.4 KiB
Python
46 lines
1.4 KiB
Python
"""CherryPy Library"""
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# Deprecated in CherryPy 3.2 -- remove in CherryPy 3.3
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from cherrypy.lib.reprconf import unrepr, modules, attributes
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class file_generator(object):
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"""Yield the given input (a file object) in chunks (default 64k). (Core)"""
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def __init__(self, input, chunkSize=65536):
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self.input = input
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self.chunkSize = chunkSize
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def __iter__(self):
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return self
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def __next__(self):
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chunk = self.input.read(self.chunkSize)
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if chunk:
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return chunk
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else:
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if hasattr(self.input, 'close'):
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self.input.close()
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raise StopIteration()
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next = __next__
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def file_generator_limited(fileobj, count, chunk_size=65536):
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"""Yield the given file object in chunks, stopping after `count`
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bytes has been emitted. Default chunk size is 64kB. (Core)
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"""
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remaining = count
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while remaining > 0:
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chunk = fileobj.read(min(chunk_size, remaining))
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chunklen = len(chunk)
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if chunklen == 0:
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return
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remaining -= chunklen
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yield chunk
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def set_vary_header(response, header_name):
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"Add a Vary header to a response"
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varies = response.headers.get("Vary", "")
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varies = [x.strip() for x in varies.split(",") if x.strip()]
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if header_name not in varies:
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varies.append(header_name)
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response.headers['Vary'] = ", ".join(varies)
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