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1 #!/usr/bin/python
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2 ###
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3 ### Google Calendar MultiMerge v0.000001
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4 ### (C) 2016 Matti 'ccr' Hamalainen <ccr@tnsp.org>
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5 ###
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6 ### Python 2.7 <= x < 3 required! Please refer to
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7 ### README.txt for information on other depencies.
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8 ###
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1
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9 import os
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10 import sys
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11 import signal
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12 import re
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13 import time
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14 import datetime
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15 import httplib2
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16 import ConfigParser
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17 import oauth2client
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18 from oauth2client import client
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19 from oauth2client import tools
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20 from googleapiclient import discovery
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21
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22
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23 ###
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24 ### Misc. helper functions
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25 ###
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26
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27 ## Wrapper for print() that does not break when redirecting stdin/out
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28 ## because of piped output not having a defined encoding. We default
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29 ## to UTF-8 encoding in output here.
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30 def gcm_print(smsg):
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31 gcm_msgbuf.append(smsg.encode("UTF-8"))
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32 if sys.stdout.encoding != None:
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33 print(smsg.encode(sys.stdout.encoding))
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34 else:
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35 print(smsg.encode("UTF-8"))
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36
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37
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38 ## Fatal errors
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39 def gcm_fatal(smsg):
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40 gcm_print(u"ERROR: "+ smsg)
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41 sys.exit(1)
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42
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43
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44 ## Debug messages
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45 def gcm_debug(smsg):
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46 if cfg.debug:
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47 gcm_print(u"DBG: "+ smsg)
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48 else:
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49 gcm_msgbuf.append(u"DBG: "+ smsg.encode("UTF-8"))
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50
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51
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52 ## Handle SIGINT signals here
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53 def gcm_signal_handler(signal, frame):
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54 gcm_print("\nQuitting due to SIGINT / Ctrl+C!")
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55 sys.exit(0)
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56
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57
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58 def gcm_get_credentials(mcfg):
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59 store = oauth2client.file.Storage(mcfg.credential_file)
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60 credentials = store.get()
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61 if not credentials or credentials.invalid:
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62 flow = client.flow_from_clientsecrets(mcfg.secret_file, mcfg.scope)
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63 flow.user_agent = mcfg.app_name
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64 credentials = tools.run_flow(flow, store, mcfg)
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65 if not credentials or credentials.invalid:
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66 gcm_fatal("Failed to authenticate / invalid credentials.")
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67 return credentials
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68
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69
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70 def gcm_dump_events(events):
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71 for event in events:
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72 ev_start = event["start"].get("dateTime", event["start"].get("date"))
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73 ev_end = event["end"].get("dateTime", event["end"].get("date"))
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74 gcm_print(u"{0:25} - {1:25} : {2}".format(ev_start, ev_end, event["summary"]))
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75
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76
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77 class GCMSettings(dict):
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78 def __init__(self):
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79 self.m_data = {}
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80 self.m_saveable = {}
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81 self.m_translate = {}
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82
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83 def __getattr__(self, name):
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84 if name in self.m_data:
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85 return self.m_data[name]
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86 else:
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87 gcm_fatal("GCMSettings.__getattr__(): No such attribute '"+ name +"'.")
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88
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89 def mtranslate(self, name, value):
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90 if name in self.m_translate and self.m_translate[name]:
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91 return self.m_translate[name](value)
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92 else:
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93 return value
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94
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95 def mdef(self, name, saveable, validate, translate, value):
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96 self.m_saveable[name] = saveable
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97 self.m_data[name] = self.mtranslate(name, value)
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98
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99 def mset(self, name, value):
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100 if name in self.m_data:
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101 self.m_data[name] = self.mtranslate(name, value)
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102 else:
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103 gcm_fatal("GCMSettings.mset(): No such attribute '"+ name +"'.")
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104
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105 def mget(self, name):
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106 if name in self.m_data:
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107 return self.m_data[name]
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108 else:
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109 return None
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110
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111
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112 ###
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113 ### Main program starts
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114 ###
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115 gcm_msgbuf = []
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116 signal.signal(signal.SIGINT, gcm_signal_handler)
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117
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118
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119 ## Settings
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120 cfg = GCMSettings()
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121
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122 cfg.mdef("debug", True, gcm_is_bool, gcm_trans_bool, False)
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123
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124 cfg.mdef("source_regex", True, gcm_is_string, None, "^R:\s*(.*?)\s*\(\s*(.+?)\s*\)\s*$")
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125 cfg.mdef("source_regmap", False, gcm_is_list, gcm_trans_list, [1, 2])
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126 cfg.mdef("source_regmap_len", False, None, None, len(cfg.source_regmap))
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127
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128 cfg.mdef("dest_name", True, gcm_is_string, None, u"Raahen kansainvälisyystoiminta")
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129 cfg.mdef("dest_id", True, gcm_is_string, None, None)
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130
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131 cfg.mdef("noauth_local_webserver", False, None, None, True)
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132 #cfg.mdef("auth_host_name", False, None, None, "localhost")
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133 #cfg.mdef("auth_host_port", False, None, None, [8080, 8090])
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134 cfg.mdef("logging_level", True, gcm_is_log_level, gcm_trans_log_level, "ERROR")
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135
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136 # No need to touch these
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137 cfg.mdef("app_name", False, None, None, "Google Calendar MultiMerge")
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138 cfg.mdef("scope", False, None, None, "https://www.googleapis.com/auth/calendar")
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139 #cfg.mdef("scope", False, None, None, "https://www.googleapis.com/auth/calendar.readonly")
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140 cfg.mdef("secret_file", True, gcm_is_filename, None, "client_secret.json")
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141 cfg.mdef("credential_file", True, gcm_is_filename, None, "client_credentials.json")
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142
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143 ## Initialize and authorize API connection
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144 credentials = gcm_get_credentials(cfg)
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145 http = credentials.authorize(httplib2.Http())
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146 service = discovery.build("calendar", "v3", http=http)
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147
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148
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149 ## Fetch complete calendar list
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150 gcm_debug("Fetching available calendars ..")
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151 calendars = []
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152 calPageToken = None
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153 while True:
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154 # We want everything except deleted and hidden calendars
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155 calResult = service.calendarList().list(
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156 showHidden=False,
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157 showDeleted=False,
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158 pageToken=calPageToken
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159 ).execute()
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160
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161 calendars.extend(calResult.get("items", []))
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162 calPageToken = calResult.get("nextPageToken")
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163 if not calPageToken:
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164 break
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165
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166 if len(calendars) == 0:
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167 gcm_fatal("No calendars found?")
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168
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169
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