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'''
Upload script specifically engineered for the PyWeek challenge.
Handles authentication and gives upload progress feedback.
'''
import sys, os, httplib, cStringIO, socket, time, getopt
class Upload:
def __init__(self, filename):
self.filename = filename
boundary = '--------------GHSKFJDLGDS7543FJKLFHRE75642756743254'
sep_boundary = '\n--' + boundary
end_boundary = sep_boundary + '--'
def mimeEncode(data, sep_boundary=sep_boundary, end_boundary=end_boundary):
'''Take the mapping of data and construct the body of a
multipart/form-data message with it using the indicated boundaries.
'''
ret = cStringIO.StringIO()
for key, value in data.items():
# handle multiple entries for the same name
if type(value) != type([]): value = [value]
for value in value:
ret.write(sep_boundary)
if isinstance(value, Upload):
ret.write('\nContent-Disposition: form-data; name="%s"'%key)
filename = os.path.basename(value.filename)
ret.write('; filename="%s"\n\n'%filename)
value = open(os.path.join(value.filename), "rb").read()
else:
ret.write('\nContent-Disposition: form-data; name="%s"'%key)
ret.write("\n\n")
ret.write(str(value))
if value and value[-1] == '\r':
ret.write('\n') # write an extra newline
ret.write(end_boundary)
return ret.getvalue()
class Progress:
def __init__(self, info, data):
self.info = info
self.tosend = len(data)
self.total = self.tosend/1024
self.data = cStringIO.StringIO(data)
self.start = self.now = time.time()
self.sent = 0
self.num = 0
self.stepsize = self.total / 100 or 1
self.steptimes = []
self.display()
def __iter__(self): return self
def next(self):
self.num += 1
if self.sent >= self.tosend:
print self.info, 'done', ' '*(75-len(self.info)-6)
sys.stdout.flush()
raise StopIteration
chunk = self.data.read(1024)
self.sent += len(chunk)
#print (self.num, self.stepsize, self.total, self.sent, self.tosend)
if self.num % self.stepsize:
return chunk
self.display()
return chunk
def display(self):
# figure how long we've spent - guess how long to go
now = time.time()
steptime = now - self.now
self.steptimes.insert(0, steptime)
if len(self.steptimes) > 5:
self.steptimes.pop()
steptime = sum(self.steptimes) / len(self.steptimes)
self.now = now
eta = steptime * ((self.total - self.num)/self.stepsize)
# tell it like it is (or might be)
if now - self.start > 3:
M = eta / 60
H = M / 60
M = M % 60
S = eta % 60
if self.total:
s = '%s %2d%% (ETA %02d:%02d:%02d)'%(self.info,
self.num * 100. / self.total, H, M, S)
else:
s = '%s 0%% (ETA %02d:%02d:%02d)'%(self.info, H, M, S)
elif self.total:
s = '%s %2d%%'%(self.info, self.num * 100. / self.total)
else:
s = '%s %d done'%(self.info, self.num)
sys.stdout.write(s + ' '*(75-len(s)) + '\r')
sys.stdout.flush()
class progressHTTPConnection(httplib.HTTPConnection):
def progress_send(self, str):
"""Send `str' to the server."""
if self.sock is None:
self.connect()
p = Progress('Uploading', str)
for chunk in p:
pos = 0
try:
pos += self.sock.send(chunk)
except socket.error, v:
if v[0] == 32: # Broken pipe
self.close()
raise
class progressHTTP(httplib.HTTP):
_connection_class = progressHTTPConnection
def _setup(self, conn):
httplib.HTTP._setup(self, conn)
self.progress_send = self._conn.progress_send
def http_request(data, server, port, url):
h = progressHTTP(server, port)
data = mimeEncode(data)
h.putrequest('POST', url)
h.putheader('Content-type', 'multipart/form-data; boundary=%s'%boundary)
h.putheader('Content-length', str(len(data)))
h.putheader('Host', server)
h.endheaders()
h.progress_send(data)
errcode, errmsg, headers = h.getreply()
f = h.getfile()
response = f.read().strip()
f.close()
print '%s %s'%(errcode, errmsg)
if response: print response
def usage():
print '''This program is to be used to upload files to the PyWeek system.
You may use it to upload screenshots or code submissions.
REQUIRED ARGUMENTS:
-u username
-p password
-d description of file
-c file to upload
-e entry short name
OPTIONAL ARGUMENTS:
-s file is a screenshot
-f file is FINAL submission
-h override default host name (www.pyweek.org)
-P override default host port (80)
In order to qualify for judging at the end of the challenge, you MUST
upload your source and check the "Final Submission" checkbox.
'''
if __name__ == '__main__':
try:
optlist, args = getopt.getopt(sys.argv[1:], 'e:u:p:sfd:h:P:c:')
except getopt.GetoptError, message:
print message
usage()
sys.exit(1)
host = 'www.pyweek.org'
port = 80
data = {}
optional = {}
url = None
for opt, arg in optlist:
if opt == '-u': data['user'] = arg
elif opt == '-p': data['password'] = arg
elif opt == '-s': optional['is_screenshot'] = 'yes'
elif opt == '-f': optional['is_final'] = 'yes'
elif opt == '-d': data['description'] = arg
elif opt == '-c': data['content'] = Upload(arg)
elif opt == '-e': url = '/e/%s/oup/'%arg
elif opt == '-h': host = arg
elif opt == '-P': port = int(arg)
if len(data) < 4 or url is None:
print 'Required argument missing'
usage()
sys.exit(1)
data.update(optional)
http_request(data, host, port, url)
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