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# hgweb/request.py - An http request from either CGI or the standalone server.
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#
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# Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net>
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# Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms
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# of the GNU General Public License, incorporated herein by reference.
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from mercurial.demandload import demandload
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demandload(globals(), "socket sys cgi os errno")
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from mercurial.i18n import gettext as _
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class wsgiapplication(object):
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def __init__(self, destmaker):
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self.destmaker = destmaker
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def __call__(self, wsgienv, start_response):
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return _wsgirequest(self.destmaker(), wsgienv, start_response)
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class _wsgioutputfile(object):
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def __init__(self, request):
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self.request = request
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def write(self, data):
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self.request.write(data)
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def writelines(self, lines):
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for line in lines:
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self.write(line)
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def flush(self):
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return None
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def close(self):
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return None
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class _wsgirequest(object):
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def __init__(self, destination, wsgienv, start_response):
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version = wsgienv['wsgi.version']
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if (version < (1, 0)) or (version >= (2, 0)):
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raise RuntimeError("Unknown and unsupported WSGI version %d.%d" \
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% version)
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self.inp = wsgienv['wsgi.input']
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self.out = _wsgioutputfile(self)
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self.server_write = None
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self.err = wsgienv['wsgi.errors']
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self.threaded = wsgienv['wsgi.multithread']
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self.multiprocess = wsgienv['wsgi.multiprocess']
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self.run_once = wsgienv['wsgi.run_once']
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self.env = wsgienv
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self.form = cgi.parse(self.inp, self.env, keep_blank_values=1)
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self.start_response = start_response
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self.headers = []
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destination.run_wsgi(self)
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def __iter__(self):
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return iter([])
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def read(self, count=-1):
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return self.inp.read(count)
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def write(self, *things):
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for thing in things:
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if hasattr(thing, "__iter__"):
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for part in thing:
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self.write(part)
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else:
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thing = str(thing)
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if self.server_write is None:
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if not self.headers:
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raise RuntimeError("request.write called before headers sent (%s)." % thing)
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self.server_write = self.start_response('200 Script output follows',
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self.headers)
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self.start_response = None
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self.headers = None
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try:
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self.server_write(thing)
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except socket.error, inst:
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if inst[0] != errno.ECONNRESET:
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raise
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def header(self, headers=[('Content-type','text/html')]):
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self.headers.extend(headers)
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def httphdr(self, type, filename=None, length=0, headers={}):
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headers = headers.items()
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headers.append(('Content-type', type))
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if filename:
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headers.append(('Content-disposition', 'attachment; filename=%s' %
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filename))
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if length:
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headers.append(('Content-length', str(length)))
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self.header(headers)
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