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 | value = str(value) |
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35 | ret.write(str(value)) |
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36 | if value and value[-1] == '\r': |
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37 | ret.write('\n') # write an extra newline |
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38 | ret.write(end_boundary) |
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39 | return ret.getvalue() |
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40 | |
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41 | class Progress: |
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42 | def __init__(self, info, data): |
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43 | self.info = info |
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44 | self.tosend = len(data) |
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45 | self.total = self.tosend/1024 |
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46 | self.data = cStringIO.StringIO(data) |
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47 | self.start = self.now = time.time() |
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48 | self.sent = 0 |
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49 | self.num = 0 |
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50 | self.stepsize = self.total / 100 or 1 |
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51 | self.steptimes = [] |
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52 | self.display() |
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53 | |
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54 | def __iter__(self): return self |
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55 | |
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56 | def next(self): |
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57 | self.num += 1 |
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58 | if self.sent >= self.tosend: |
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59 | print self.info, 'done', ' '*(75-len(self.info)-6) |
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60 | sys.stdout.flush() |
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61 | raise StopIteration |
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62 | |
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63 | chunk = self.data.read(1024) |
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64 | self.sent += len(chunk) |
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65 | #print (self.num, self.stepsize, self.total, self.sent, self.tosend) |
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66 | |
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67 | if self.num % self.stepsize: |
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68 | return chunk |
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69 | self.display() |
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70 | return chunk |
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71 | |
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72 | def display(self): |
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73 | # figure how long we've spent - guess how long to go |
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74 | now = time.time() |
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75 | steptime = now - self.now |
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76 | self.steptimes.insert(0, steptime) |
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77 | if len(self.steptimes) > 5: |
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78 | self.steptimes.pop() |
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79 | steptime = sum(self.steptimes) / len(self.steptimes) |
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80 | self.now = now |
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81 | eta = steptime * ((self.total - self.num)/self.stepsize) |
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82 | |
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83 | # tell it like it is (or might be) |
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84 | if now - self.start > 3: |
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85 | M = eta / 60 |
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86 | H = M / 60 |
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87 | M = M % 60 |
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88 | S = eta % 60 |
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89 | if self.total: |
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90 | s = '%s %2d%% (ETA %02d:%02d:%02d)'%(self.info, |
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91 | self.num * 100. / self.total, H, M, S) |
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92 | else: |
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93 | s = '%s 0%% (ETA %02d:%02d:%02d)'%(self.info, H, M, S) |
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94 | elif self.total: |
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95 | s = '%s %2d%%'%(self.info, self.num * 100. / self.total) |
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96 | else: |
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97 | s = '%s %d done'%(self.info, self.num) |
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98 | sys.stdout.write(s + ' '*(75-len(s)) + '\r') |
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99 | sys.stdout.flush() |
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100 | |
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101 | class progressHTTPConnection(httplib.HTTPConnection): |
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102 | def progress_send(self, str): |
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103 | """Send `str' to the server.""" |
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104 | if self.sock is None: |
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105 | self.connect() |
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106 | |
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107 | p = Progress('Uploading', str) |
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108 | for chunk in p: |
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109 | sent = 0 |
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110 | while sent != len(chunk): |
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111 | try: |
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112 | sent += self.sock.send(chunk) |
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113 | except socket.error, v: |
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114 | if v[0] == 32: # Broken pipe |
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115 | self.close() |
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116 | raise |
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117 | p.display() |
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118 | |
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119 | class progressHTTP(httplib.HTTP): |
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120 | _connection_class = progressHTTPConnection |
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121 | def _setup(self, conn): |
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122 | httplib.HTTP._setup(self, conn) |
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123 | self.progress_send = self._conn.progress_send |
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124 | |
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125 | def http_request(data, server, port, url): |
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126 | h = progressHTTP(server, port) |
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127 | |
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128 | data = mimeEncode(data) |
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129 | h.putrequest('POST', url) |
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130 | h.putheader('Content-type', 'multipart/form-data; boundary=%s'%boundary) |
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131 | h.putheader('Content-length', str(len(data))) |
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132 | h.putheader('Host', server) |
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133 | h.endheaders() |
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134 | |
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135 | h.progress_send(data) |
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136 | |
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137 | errcode, errmsg, headers = h.getreply() |
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138 | |
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139 | f = h.getfile() |
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140 | response = f.read().strip() |
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141 | f.close() |
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142 | |
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143 | print '%s %s'%(errcode, errmsg) |
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144 | if response: print response |
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145 | |
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146 | def usage(): |
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147 | print '''This program is to be used to upload files to the PyWeek system. |
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148 | You may use it to upload screenshots or code submissions. |
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149 | |
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150 | REQUIRED ARGUMENTS: |
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151 | -u username |
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152 | -p password |
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153 | -d description of file |
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154 | -c file to upload |
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155 | -e entry short name |
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156 | |
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157 | OPTIONAL ARGUMENTS: |
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158 | -s file is a screenshot |
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159 | -f file is FINAL submission |
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160 | -h override default host name (www.pyweek.org) |
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161 | -P override default host port (80) |
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162 | |
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163 | In order to qualify for judging at the end of the challenge, you MUST |
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164 | upload your source and check the "Final Submission" checkbox. |
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165 | ''' |
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166 | |
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167 | |
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168 | if __name__ == '__main__': |
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169 | try: |
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170 | optlist, args = getopt.getopt(sys.argv[1:], 'e:u:p:sfd:h:P:c:') |
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171 | except getopt.GetoptError, message: |
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172 | print message |
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173 | usage() |
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174 | sys.exit(1) |
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175 | host = 'www.pyweek.org' |
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176 | port = 80 |
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177 | data = dict(version=2) |
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178 | optional = {} |
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179 | url = None |
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180 | for opt, arg in optlist: |
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181 | if opt == '-u': data['user'] = arg |
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182 | elif opt == '-p': data['password'] = arg |
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183 | elif opt == '-s': optional['is_screenshot'] = 'yes' |
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184 | elif opt == '-f': optional['is_final'] = 'yes' |
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185 | elif opt == '-d': data['description'] = arg |
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186 | elif opt == '-c': data['content_file'] = Upload(arg) |
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187 | elif opt == '-e': url = '/e/%s/oup/'%arg |
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188 | elif opt == '-h': host = arg |
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189 | elif opt == '-P': port = int(arg) |
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190 | |
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191 | if len(data) < 4 or url is None: |
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192 | print 'Required argument missing' |
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193 | usage() |
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194 | sys.exit(1) |
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195 | |
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196 | data.update(optional) |
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197 | http_request(data, host, port, url) |
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198 | |
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