90 lines
3.5 KiB
Python
90 lines
3.5 KiB
Python
#!/usr/bin/python
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####
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# 06/2010 Nic Wolfe <nic@wolfeden.ca>
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# 02/2006 Will Holcomb <wholcomb@gmail.com>
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library 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 GNU
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# Lesser General Public License for more details.
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#
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import urllib
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import urllib2
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import mimetools, mimetypes
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import os, sys
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# Controls how sequences are uncoded. If true, elements may be given multiple values by
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# assigning a sequence.
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doseq = 1
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class MultipartPostHandler(urllib2.BaseHandler):
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handler_order = urllib2.HTTPHandler.handler_order - 10 # needs to run first
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def http_request(self, request):
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data = request.get_data()
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if data is not None and type(data) != str:
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v_files = []
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v_vars = []
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try:
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for(key, value) in data.items():
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if type(value) in (file, list, tuple):
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v_files.append((key, value))
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else:
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v_vars.append((key, value))
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except TypeError:
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systype, value, traceback = sys.exc_info()
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raise TypeError, "not a valid non-string sequence or mapping object", traceback
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if len(v_files) == 0:
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data = urllib.urlencode(v_vars, doseq)
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else:
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boundary, data = MultipartPostHandler.multipart_encode(v_vars, v_files)
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contenttype = 'multipart/form-data; boundary=%s' % boundary
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if(request.has_header('Content-Type')
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and request.get_header('Content-Type').find('multipart/form-data') != 0):
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print "Replacing %s with %s" % (request.get_header('content-type'), 'multipart/form-data')
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request.add_unredirected_header('Content-Type', contenttype)
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request.add_data(data)
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return request
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@staticmethod
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def multipart_encode(vars, files, boundary = None, buffer = None):
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if boundary is None:
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boundary = mimetools.choose_boundary()
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if buffer is None:
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buffer = ''
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for(key, value) in vars:
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buffer += '--%s\r\n' % boundary
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buffer += 'Content-Disposition: form-data; name="%s"' % key
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buffer += '\r\n\r\n' + value + '\r\n'
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for(key, fd) in files:
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# allow them to pass in a file or a tuple with name & data
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if type(fd) == file:
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name_in = fd.name
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fd.seek(0)
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data_in = fd.read()
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elif type(fd) in (tuple, list):
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name_in, data_in = fd
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filename = os.path.basename(name_in)
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contenttype = mimetypes.guess_type(filename)[0] or 'application/octet-stream'
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buffer += '--%s\r\n' % boundary
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buffer += 'Content-Disposition: form-data; name="%s"; filename="%s"\r\n' % (key, filename)
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buffer += 'Content-Type: %s\r\n' % contenttype
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# buffer += 'Content-Length: %s\r\n' % file_size
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buffer += '\r\n' + data_in + '\r\n'
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buffer += '--%s--\r\n\r\n' % boundary
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return boundary, buffer
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https_request = http_request
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