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1 '''
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2 Upload script specifically engineered for the PyWeek challenge.
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3
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4 Handles authentication and gives upload progress feedback.
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5 '''
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6 import sys, os, httplib, cStringIO, socket, time, getopt
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7
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8 class Upload:
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9 def __init__(self, filename):
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10 self.filename = filename
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11
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12 boundary = '--------------GHSKFJDLGDS7543FJKLFHRE75642756743254'
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13 sep_boundary = '\n--' + boundary
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14 end_boundary = sep_boundary + '--'
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15
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16 def mimeEncode(data, sep_boundary=sep_boundary, end_boundary=end_boundary):
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17 '''Take the mapping of data and construct the body of a
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18 multipart/form-data message with it using the indicated boundaries.
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19 '''
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20 ret = cStringIO.StringIO()
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21 for key, value in data.items():
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22 # handle multiple entries for the same name
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23 if type(value) != type([]): value = [value]
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24 for value in value:
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25 ret.write(sep_boundary)
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26 if isinstance(value, Upload):
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27 ret.write('\nContent-Disposition: form-data; name="%s"'%key)
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28 filename = os.path.basename(value.filename)
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29 ret.write('; filename="%s"\n\n'%filename)
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30 value = open(os.path.join(value.filename), "rb").read()
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31 else:
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32 ret.write('\nContent-Disposition: form-data; name="%s"'%key)
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33 ret.write("\n\n")
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34 ret.write(str(value))
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35 if value and value[-1] == '\r':
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36 ret.write('\n') # write an extra newline
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37 ret.write(end_boundary)
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38 return ret.getvalue()
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39
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40 class Progress:
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41 def __init__(self, info, data):
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42 self.info = info
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43 self.tosend = len(data)
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44 self.total = self.tosend/1024
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45 self.data = cStringIO.StringIO(data)
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46 self.start = self.now = time.time()
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47 self.sent = 0
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48 self.num = 0
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49 self.stepsize = self.total / 100 or 1
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50 self.steptimes = []
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51 self.display()
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52
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53 def __iter__(self): return self
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54
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55 def next(self):
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56 self.num += 1
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57 if self.sent >= self.tosend:
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58 print self.info, 'done', ' '*(75-len(self.info)-6)
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59 sys.stdout.flush()
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60 raise StopIteration
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61
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62 chunk = self.data.read(1024)
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63 self.sent += len(chunk)
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64 #print (self.num, self.stepsize, self.total, self.sent, self.tosend)
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65
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66 if self.num % self.stepsize:
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67 return chunk
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68 self.display()
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69 return chunk
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70
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71 def display(self):
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72 # figure how long we've spent - guess how long to go
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73 now = time.time()
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74 steptime = now - self.now
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75 self.steptimes.insert(0, steptime)
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76 if len(self.steptimes) > 5:
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77 self.steptimes.pop()
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78 steptime = sum(self.steptimes) / len(self.steptimes)
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79 self.now = now
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80 eta = steptime * ((self.total - self.num)/self.stepsize)
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81
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82 # tell it like it is (or might be)
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83 if now - self.start > 3:
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84 M = eta / 60
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85 H = M / 60
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86 M = M % 60
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87 S = eta % 60
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88 if self.total:
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89 s = '%s %2d%% (ETA %02d:%02d:%02d)'%(self.info,
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90 self.num * 100. / self.total, H, M, S)
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91 else:
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92 s = '%s 0%% (ETA %02d:%02d:%02d)'%(self.info, H, M, S)
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93 elif self.total:
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94 s = '%s %2d%%'%(self.info, self.num * 100. / self.total)
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95 else:
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96 s = '%s %d done'%(self.info, self.num)
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97 sys.stdout.write(s + ' '*(75-len(s)) + '\r')
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98 sys.stdout.flush()
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99
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100 class progressHTTPConnection(httplib.HTTPConnection):
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101 def progress_send(self, str):
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102 """Send `str' to the server."""
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103 if self.sock is None:
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104 self.connect()
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105
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106 p = Progress('Uploading', str)
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107 for chunk in p:
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108 sent = 0
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109 while sent != len(chunk):
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110 try:
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111 sent += self.sock.send(chunk)
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112 except socket.error, v:
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113 if v[0] == 32: # Broken pipe
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114 self.close()
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115 raise
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116 p.display()
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117
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118 class progressHTTP(httplib.HTTP):
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119 _connection_class = progressHTTPConnection
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120 def _setup(self, conn):
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121 httplib.HTTP._setup(self, conn)
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122 self.progress_send = self._conn.progress_send
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123
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124 def http_request(data, server, port, url):
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125 h = progressHTTP(server, port)
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126
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127 data = mimeEncode(data)
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128 h.putrequest('POST', url)
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129 h.putheader('Content-type', 'multipart/form-data; boundary=%s'%boundary)
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130 h.putheader('Content-length', str(len(data)))
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131 h.putheader('Host', server)
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132 h.endheaders()
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133
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134 h.progress_send(data)
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135
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136 errcode, errmsg, headers = h.getreply()
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137
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138 f = h.getfile()
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139 response = f.read().strip()
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140 f.close()
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141
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142 print '%s %s'%(errcode, errmsg)
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143 if response: print response
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144
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145 def usage():
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146 print '''This program is to be used to upload files to the PyWeek system.
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147 You may use it to upload screenshots or code submissions.
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148
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149 REQUIRED ARGUMENTS:
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150 -u username
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151 -p password
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152 -d description of file
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153 -c file to upload
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154 -e entry short name
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155
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156 OPTIONAL ARGUMENTS:
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157 -s file is a screenshot
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158 -f file is FINAL submission
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159 -h override default host name (www.pyweek.org)
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160 -P override default host port (80)
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161
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162 In order to qualify for judging at the end of the challenge, you MUST
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163 upload your source and check the "Final Submission" checkbox.
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164 '''
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165
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166
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167 if __name__ == '__main__':
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168 try:
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169 optlist, args = getopt.getopt(sys.argv[1:], 'e:u:p:sfd:h:P:c:')
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170 except getopt.GetoptError, message:
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171 print message
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172 usage()
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173 sys.exit(1)
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174 host = 'www.pyweek.org'
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175 port = 80
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176 data = dict(version=2)
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177 optional = {}
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178 url = None
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179 for opt, arg in optlist:
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180 if opt == '-u': data['user'] = arg
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181 elif opt == '-p': data['password'] = arg
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182 elif opt == '-s': optional['is_screenshot'] = 'yes'
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183 elif opt == '-f': optional['is_final'] = 'yes'
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184 elif opt == '-d': data['description'] = arg
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185 elif opt == '-c': data['content_file'] = Upload(arg)
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186 elif opt == '-e': url = '/e/%s/oup/'%arg
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187 elif opt == '-h': host = arg
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188 elif opt == '-P': port = int(arg)
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189
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190 if len(data) < 4 or url is None:
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191 print 'Required argument missing'
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192 usage()
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193 sys.exit(1)
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194
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195 data.update(optional)
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196 http_request(data, host, port, url)
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197
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