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Diffstat (limited to 'cherrypy/lib/__init__.py')
-rwxr-xr-x | cherrypy/lib/__init__.py | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/cherrypy/lib/__init__.py b/cherrypy/lib/__init__.py new file mode 100755 index 0000000..611350c --- /dev/null +++ b/cherrypy/lib/__init__.py @@ -0,0 +1,45 @@ +"""CherryPy Library""" + +# Deprecated in CherryPy 3.2 -- remove in CherryPy 3.3 +from cherrypy.lib.reprconf import _Builder, unrepr, modules, attributes + +class file_generator(object): + """Yield the given input (a file object) in chunks (default 64k). (Core)""" + + def __init__(self, input, chunkSize=65536): + self.input = input + self.chunkSize = chunkSize + + def __iter__(self): + return self + + def __next__(self): + chunk = self.input.read(self.chunkSize) + if chunk: + return chunk + else: + if hasattr(self.input, 'close'): + self.input.close() + raise StopIteration() + next = __next__ + +def file_generator_limited(fileobj, count, chunk_size=65536): + """Yield the given file object in chunks, stopping after `count` + bytes has been emitted. Default chunk size is 64kB. (Core) + """ + remaining = count + while remaining > 0: + chunk = fileobj.read(min(chunk_size, remaining)) + chunklen = len(chunk) + if chunklen == 0: + return + remaining -= chunklen + yield chunk + +def set_vary_header(response, header_name): + "Add a Vary header to a response" + varies = response.headers.get("Vary", "") + varies = [x.strip() for x in varies.split(",") if x.strip()] + if header_name not in varies: + varies.append(header_name) + response.headers['Vary'] = ", ".join(varies) |