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1 #!/usr/bin/python
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3
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2 # coding=utf-8
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2
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3 ###
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4 ### Google Calendar MultiMerge v0.000001
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5 ### (C) 2016 Matti 'ccr' Hamalainen <ccr@tnsp.org>
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6 ###
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7 ### Python 2.7 <= x < 3 required! Please refer to
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8 ### README.txt for information on other depencies.
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9 ###
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1
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10 import os
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11 import sys
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12 import signal
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13 import re
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14 import time
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15 import datetime
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16 import httplib2
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17 import ConfigParser
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18 import oauth2client
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19 from oauth2client import client
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20 from oauth2client import tools
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21 from googleapiclient import discovery
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22
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23
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24 ###
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25 ### Misc. helper functions
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26 ###
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27
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28 ## Wrapper for print() that does not break when redirecting stdin/out
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29 ## because of piped output not having a defined encoding. We default
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30 ## to UTF-8 encoding in output here.
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31 def gcm_print(smsg):
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32 gcm_msgbuf.append(smsg.encode("UTF-8"))
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33 if sys.stdout.encoding != None:
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34 print(smsg.encode(sys.stdout.encoding))
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35 else:
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36 print(smsg.encode("UTF-8"))
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37
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38
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39 ## Fatal errors
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40 def gcm_fatal(smsg):
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41 gcm_print(u"ERROR: "+ smsg)
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42 sys.exit(1)
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43
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44
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45 ## Debug messages
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46 def gcm_debug(smsg):
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47 if cfg.debug:
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48 gcm_print(u"DBG: "+ smsg)
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49 else:
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50 gcm_msgbuf.append(u"DBG: "+ smsg.encode("UTF-8"))
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51
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52
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53 ## Handle SIGINT signals here
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54 def gcm_signal_handler(signal, frame):
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55 gcm_print("\nQuitting due to SIGINT / Ctrl+C!")
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56 sys.exit(0)
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57
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58
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59 def gcm_get_credentials(mcfg):
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60 store = oauth2client.file.Storage(mcfg.credential_file)
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61 credentials = store.get()
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62 if not credentials or credentials.invalid:
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63 flow = client.flow_from_clientsecrets(mcfg.secret_file, mcfg.scope)
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64 flow.user_agent = mcfg.app_name
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65 credentials = tools.run_flow(flow, store, mcfg)
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66 if not credentials or credentials.invalid:
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67 gcm_fatal("Failed to authenticate / invalid credentials.")
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68 return credentials
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69
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70
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71 def gcm_dump_events(events):
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72 for event in events:
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73 ev_start = event["start"].get("dateTime", event["start"].get("date"))
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74 ev_end = event["end"].get("dateTime", event["end"].get("date"))
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75 gcm_print(u"{0:25} - {1:25} : {2}".format(ev_start, ev_end, event["summary"]))
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76
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77
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78 class GCMSettings(dict):
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79 def __init__(self):
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80 self.m_data = {}
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81 self.m_saveable = {}
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82 self.m_translate = {}
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83
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84 def __getattr__(self, name):
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85 if name in self.m_data:
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86 return self.m_data[name]
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87 else:
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88 gcm_fatal("GCMSettings.__getattr__(): No such attribute '"+ name +"'.")
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89
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90 def mtranslate(self, name, value):
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91 if name in self.m_translate and self.m_translate[name]:
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92 return self.m_translate[name](value)
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93 else:
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94 return value
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95
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96 def mdef(self, name, saveable, validate, translate, value):
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97 self.m_saveable[name] = saveable
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98 self.m_data[name] = self.mtranslate(name, value)
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99
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100 def mset(self, name, value):
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101 if name in self.m_data:
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102 self.m_data[name] = self.mtranslate(name, value)
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103 else:
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104 gcm_fatal("GCMSettings.mset(): No such attribute '"+ name +"'.")
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105
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106 def mget(self, name):
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107 if name in self.m_data:
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108 return self.m_data[name]
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109 else:
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110 return None
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111
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112
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113 ###
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114 ### Main program starts
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115 ###
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116 gcm_msgbuf = []
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117 signal.signal(signal.SIGINT, gcm_signal_handler)
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118
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119
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120 ## Settings
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121 cfg = GCMSettings()
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122
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123 cfg.mdef("debug", True, gcm_is_bool, gcm_trans_bool, False)
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124
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125 cfg.mdef("source_regex", True, gcm_is_string, None, "^R:\s*(.*?)\s*\(\s*(.+?)\s*\)\s*$")
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126 cfg.mdef("source_regmap", False, gcm_is_list, gcm_trans_list, [1, 2])
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127 cfg.mdef("source_regmap_len", False, None, None, len(cfg.source_regmap))
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128
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129 cfg.mdef("dest_name", True, gcm_is_string, None, u"Raahen kansainvälisyystoiminta")
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130 cfg.mdef("dest_id", True, gcm_is_string, None, None)
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131
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132 cfg.mdef("noauth_local_webserver", False, None, None, True)
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133 #cfg.mdef("auth_host_name", False, None, None, "localhost")
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134 #cfg.mdef("auth_host_port", False, None, None, [8080, 8090])
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135 cfg.mdef("logging_level", True, gcm_is_log_level, gcm_trans_log_level, "ERROR")
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136
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137 # No need to touch these
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138 cfg.mdef("app_name", False, None, None, "Google Calendar MultiMerge")
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139 cfg.mdef("scope", False, None, None, "https://www.googleapis.com/auth/calendar")
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140 #cfg.mdef("scope", False, None, None, "https://www.googleapis.com/auth/calendar.readonly")
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141 cfg.mdef("secret_file", True, gcm_is_filename, None, "client_secret.json")
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142 cfg.mdef("credential_file", True, gcm_is_filename, None, "client_credentials.json")
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143
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144 ## Initialize and authorize API connection
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145 credentials = gcm_get_credentials(cfg)
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146 http = credentials.authorize(httplib2.Http())
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147 service = discovery.build("calendar", "v3", http=http)
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148
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149
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150 ## Fetch complete calendar list
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151 gcm_debug("Fetching available calendars ..")
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152 calendars = []
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153 calPageToken = None
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154 while True:
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155 # We want everything except deleted and hidden calendars
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156 calResult = service.calendarList().list(
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157 showHidden=False,
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158 showDeleted=False,
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159 pageToken=calPageToken
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160 ).execute()
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161
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162 calendars.extend(calResult.get("items", []))
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163 calPageToken = calResult.get("nextPageToken")
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164 if not calPageToken:
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165 break
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166
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167 if len(calendars) == 0:
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168 gcm_fatal("No calendars found?")
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169
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170
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