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77 lines
2.8 KiB
Python
77 lines
2.8 KiB
Python
#http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/146306
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# Submitter: Wade Leftwich
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# Licensing:
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# according to http://aspn.activestate.com/ASPN/Cookbook/Python
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# "Except where otherwise noted, recipes in the Python Cookbook are published under the Python license ."
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# This recipe is covered under the Python license: http://www.python.org/license
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import httplib, mimetypes, urllib2
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from socket import error, herror, gaierror, timeout
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def link_exists(host, selector):
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"""
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Check to see if the given host exists and is reachable
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"""
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try:
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site = urllib2.urlopen("http://" + host + selector)
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meta = site.info()
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except urllib2.URLError, e:
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print "FAIL: graph server does not resolve"
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print "FAIL: " + str(e.reason)
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return 0
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return 1
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def post_multipart(host, selector, fields, files):
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"""
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Post fields and files to an http host as multipart/form-data.
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fields is a sequence of (name, value) elements for regular form fields.
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files is a sequence of (name, filename, value) elements for data to be uploaded as files
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Return the server's response page.
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"""
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try:
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content_type, body = encode_multipart_formdata(fields, files)
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h = httplib.HTTP(host)
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h.putrequest('POST', selector)
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h.putheader('content-type', content_type)
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h.putheader('content-length', str(len(body)))
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h.endheaders()
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h.send(body)
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errcode, errmsg, headers = h.getreply()
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return h.file.read()
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except (httplib.HTTPException, error, herror, gaierror, timeout), e:
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print "FAIL: graph server unreachable"
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print "FAIL: " + str(e)
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raise
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except:
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print "FAIL: graph server unreachable"
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raise
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def encode_multipart_formdata(fields, files):
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"""
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fields is a sequence of (name, value) elements for regular form fields.
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files is a sequence of (name, filename, value) elements for data to be uploaded as files
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Return (content_type, body) ready for httplib.HTTP instance
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"""
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BOUNDARY = '----------ThIs_Is_tHe_bouNdaRY_$'
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CRLF = '\r\n'
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L = []
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for (key, value) in fields:
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L.append('--' + BOUNDARY)
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L.append('Content-Disposition: form-data; name="%s"' % key)
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L.append('')
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L.append(value)
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for (key, filename, value) in files:
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L.append('--' + BOUNDARY)
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L.append('Content-Disposition: form-data; name="%s"; filename="%s"' % (key, filename))
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L.append('Content-Type: %s' % get_content_type(filename))
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L.append('')
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L.append(value)
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L.append('--' + BOUNDARY + '--')
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L.append('')
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body = CRLF.join(L)
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content_type = 'multipart/form-data; boundary=%s' % BOUNDARY
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return content_type, body
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def get_content_type(filename):
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return mimetypes.guess_type(filename)[0] or 'application/octet-stream'
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