1 | #! /usr/bin/env python |
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2 | # -*- coding: utf-8 -*- |
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3 | # |
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4 | # PyKota : Print Quotas for CUPS |
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5 | # |
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6 | # (c) 2003-2009 Jerome Alet <alet@librelogiciel.com> |
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7 | # This program is free software: you can redistribute it and/or modify |
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8 | # it under the terms of the GNU General Public License as published by |
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9 | # the Free Software Foundation, either version 3 of the License, or |
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10 | # (at your option) any later version. |
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11 | # |
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12 | # This program is distributed in the hope that it will be useful, |
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13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 | # GNU General Public License for more details. |
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16 | # |
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17 | # You should have received a copy of the GNU General Public License |
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18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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19 | # |
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20 | # $Id$ |
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21 | # |
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22 | # |
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23 | |
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24 | import sys |
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25 | import os |
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26 | import stat |
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27 | import tempfile |
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28 | import pwd |
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29 | import grp |
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30 | |
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31 | nowready = """ |
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32 | |
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33 | |
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34 | PyKota is now ready to run ! |
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35 | |
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36 | Before printing, you still have to manually modify CUPS' printers.conf |
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37 | to manually prepend cupspykota:// in front of each DeviceURI. |
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38 | |
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39 | Once this is done, just restart CUPS and all should work fine. |
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40 | |
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41 | Please report any problem to : alet@librelogiciel.com |
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42 | |
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43 | Thanks in advance. |
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44 | """ |
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45 | |
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46 | pghbaconf = """local\tall\tpostgres\t\tident sameuser |
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47 | local\tall\tall\t\tident sameuser |
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48 | host\tall\tall\t127.0.0.1\t255.255.255.255\tident sameuser |
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49 | host\tall\tall\t::1\tffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff\treject |
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50 | host\tall\tall\t::ffff:127.0.0.1/128\treject |
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51 | host\tall\tall\t0.0.0.0\t0.0.0.0\treject""" |
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52 | |
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53 | pykotadminconf = """[global] |
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54 | storageadmin: pykotaadmin |
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55 | storageadminpw: readwritepw""" |
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56 | |
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57 | pykotaconf = """# |
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58 | # This is a generated configuration file for PyKota |
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59 | # |
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60 | # IMPORTANT : many more directives can be used, and some of the directives |
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61 | # below accept different and/or more complex parameters. Please read |
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62 | # /usr/share/pykota/conf/pykota.conf.sample for more details about the |
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63 | # numerous possibilities allowed. |
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64 | # |
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65 | [global] |
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66 | |
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67 | # The charset to use when parsing the configuration files |
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68 | config_charset : UTF-8 |
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69 | |
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70 | # Database settings |
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71 | storagebackend : pgstorage |
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72 | storageserver : %(storageserver)s |
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73 | storagename : pykota |
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74 | storageuser : pykotauser |
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75 | storageuserpw : readonlypw |
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76 | storagecaching : No |
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77 | disablehistory : No |
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78 | |
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79 | # Logging method |
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80 | logger : system |
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81 | |
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82 | # Set debug to Yes during installation and testing |
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83 | debug : Yes |
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84 | |
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85 | # Who should receive automatic bug reports ? |
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86 | crashrecipient : pykotacrashed@librelogiciel.com |
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87 | |
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88 | # Should we keep temporary files on disk ? |
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89 | # Set this to yes for debugging software accounting problems |
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90 | keepfiles : no |
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91 | |
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92 | # Logos for banners and CGI scripts |
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93 | logourl : http://www.pykota.com/pykota.png |
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94 | logolink : http://www.pykota.com/ |
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95 | |
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96 | # SMTP |
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97 | smtpserver : %(smtpserver)s |
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98 | maildomain : %(dnsdomain)s |
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99 | |
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100 | # Print Administrator |
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101 | admin : %(adminname)s |
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102 | adminmail : %(adminemail)s |
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103 | |
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104 | # Use usernames as-is or convert them to lowercase or uppercase ? |
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105 | usernamecase : native |
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106 | |
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107 | # Winbind separator character, uncomment if needed |
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108 | # winbind_separator : / |
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109 | |
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110 | # Should we forbid unknown users from printing ? |
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111 | reject_unknown : No |
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112 | |
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113 | # Should we hide some fields in the history (title, filename) ? |
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114 | privacy : no |
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115 | |
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116 | # Should we charge end users when an error occurs ? |
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117 | onbackenderror : nocharge |
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118 | |
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119 | # Default accounting methods : |
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120 | preaccounter : software() |
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121 | accounter : software() |
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122 | onaccountererror : stop |
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123 | |
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124 | # Who will receive warning messages ? |
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125 | # both means admin and user. |
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126 | mailto : both |
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127 | |
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128 | # Grace delay for pages based quotas, works the same |
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129 | # as for disk quotas |
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130 | gracedelay : 7 |
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131 | |
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132 | # Configurable zero, to give free credits |
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133 | balancezero : 0.0 |
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134 | |
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135 | # Warning limit for credit based quotas |
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136 | poorman : 1.0 |
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137 | |
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138 | # Warning messages to use |
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139 | poorwarn : Your Print Quota account balance is low. |
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140 | Soon you'll not be allowed to print anymore. |
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141 | |
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142 | softwarn : Your Print Quota Soft Limit is reached. |
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143 | This means that you may still be allowed to print for some |
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144 | time, but you must contact your administrator to purchase |
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145 | more print quota. |
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146 | |
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147 | hardwarn : Your Print Quota Hard Limit is reached. |
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148 | This means that you are not allowed to print anymore. |
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149 | Please contact your administrator at root@localhost |
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150 | as soon as possible to solve the problem. |
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151 | |
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152 | # Number of banners allowed to be printed by users |
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153 | # who are over quota |
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154 | maxdenybanners : 0 |
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155 | |
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156 | # Should we allow users to ever be over quota on their last job ? |
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157 | # strict means no. |
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158 | enforcement : strict |
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159 | |
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160 | # Should we trust printers' internal page counter ? |
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161 | trustjobsize : yes |
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162 | |
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163 | # How to handle duplicate jobs |
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164 | denyduplicates : no |
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165 | duplicatesdelay : 0 |
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166 | |
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167 | # What should we do when an unknown user prints ? |
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168 | # The policy below will automatically create a printing account |
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169 | # for unknown users, allowing them to print with no limit on the |
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170 | # current printer. |
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171 | policy : external(pkusers --add --skipexisting --limitby noquota --description \"Added automatically\" \$PYKOTAUSERNAME && edpykota --add --skipexisting --printer \$PYKOTAPRINTERNAME \$PYKOTAUSERNAME) |
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172 | |
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173 | """ |
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174 | |
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175 | |
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176 | class PyKotaSetup : |
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177 | """Base class for PyKota installers.""" |
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178 | backendsdirectory = "/usr/lib/cups/backend" # overload it if needed |
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179 | pykotadirectory = "/usr/share/pykota" # overload it if needed |
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180 | pgrestart = "/etc/init.d/postgresql* restart" # overload it if needed |
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181 | cupsrestart = "/etc/init.d/cupsys restart" # overload it if needed |
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182 | adduser = "adduser --system --group --home /etc/pykota --gecos PyKota pykota" # overload it if needed |
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183 | packages = [ "wget", |
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184 | "bzip2", |
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185 | "subversion", |
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186 | "postgresql", |
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187 | "postgresql-client", |
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188 | "cupsys", |
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189 | "cupsys-client", |
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190 | "python-dev", |
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191 | "python-jaxml", |
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192 | "python-reportlab", |
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193 | "python-reportlab-accel", |
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194 | "python-pygresql", |
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195 | "python-psyco", |
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196 | "python-osd", |
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197 | "python-egenix-mxdatetime", |
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198 | "python-imaging", |
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199 | "python-pysnmp4", |
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200 | "python-pam", |
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201 | "pkpgcounter" ] |
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202 | |
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203 | otherpackages = [ |
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204 | { "name" : "pkipplib", |
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205 | "version" : "0.07", |
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206 | "url" : "http://www.pykota.com/software/%(name)s/download/tarballs/%(name)s-%(version)s.tar.gz", |
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207 | "commands" : [ "tar -zxf %(name)s-%(version)s.tar.gz", |
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208 | "cd %(name)s-%(version)s", |
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209 | "python setup.py install", |
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210 | ], |
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211 | }, |
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212 | { "name" : "ghostpdl", |
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213 | "version" : "1.54", |
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214 | "url" : "http://mirror.cs.wisc.edu/pub/mirrors/ghost/GPL/%(name)s/%(name)s-%(version)s.tar.bz2", |
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215 | "commands" : [ "bunzip2 <%(name)s-%(version)s.tar.bz2 | tar -xf -", |
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216 | "cd %(name)s-%(version)s", |
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217 | "wget http://mirror.cs.wisc.edu/pub/mirrors/ghost/AFPL/GhostPCL/urwfonts-1.41.tar.bz2", |
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218 | "bunzip2 <urwfonts-1.41.tar.bz2 | tar -xf -", |
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219 | "mv urwfonts-1.41 urwfonts", |
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220 | "make fonts", |
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221 | "make pcl", |
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222 | "make install", |
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223 | ], |
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224 | }, |
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225 | ] |
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226 | |
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227 | def __init__(self) : |
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228 | """Initializes instance specific datas.""" |
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229 | self.launched = [] |
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230 | |
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231 | def yesno(self, message) : |
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232 | """Asks the end user some question and returns the answer.""" |
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233 | try : |
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234 | return raw_input("\n%s ? " % message).strip().upper()[0] == 'Y' |
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235 | except IndexError : |
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236 | return False |
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237 | |
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238 | def confirmCommand(self, message, command, record=True) : |
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239 | """Asks for confirmation before a command is launched, and launches it if needed.""" |
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240 | if self.yesno("The following command will be launched %(message)s :\n%(command)s\nDo you agree" % locals()) : |
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241 | os.system(command) |
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242 | if record : |
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243 | self.launched.append(command) |
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244 | return True |
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245 | else : |
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246 | return False |
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247 | |
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248 | def confirmPipe(self, message, command) : |
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249 | """Asks for confirmation before a command is launched in a pipe, launches it if needed, and returns the result.""" |
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250 | if self.yesno("The following command will be launched %(message)s :\n%(command)s\nDo you agree" % locals()) : |
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251 | pipeprocess = os.popen(command, "r") |
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252 | result = pipeprocess.read() |
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253 | pipeprocess.close() |
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254 | return result |
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255 | else : |
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256 | return False |
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257 | |
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258 | def listPrinters(self) : |
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259 | """Returns a list of tuples (queuename, deviceuri) for all existing print queues.""" |
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260 | result = os.popen("lpstat -v", "r") |
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261 | lines = result.readlines() |
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262 | result.close() |
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263 | printers = [] |
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264 | for line in lines : |
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265 | (begin, end) = line.split(':', 1) |
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266 | deviceuri = end.strip() |
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267 | queuename = begin.split()[-1] |
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268 | printers.append((queuename, deviceuri)) |
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269 | return printers |
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270 | |
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271 | def downloadOtherPackages(self) : |
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272 | """Downloads and install additional packages from http://www.pykota.com or other websites""" |
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273 | olddirectory = os.getcwd() |
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274 | directory = tempfile.mkdtemp() |
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275 | sys.stdout.write("\nDownloading additional software not available as packages in %(directory)s\n" % locals()) |
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276 | os.chdir(directory) |
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277 | for package in self.otherpackages : |
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278 | name = package["name"] |
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279 | version = package["version"] |
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280 | url = package["url"] % locals() |
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281 | commands = " && ".join(package["commands"]) % locals() |
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282 | if url.startswith("svn://") : |
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283 | download = 'svn export "%(url)s" %(name)s' % locals() |
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284 | else : |
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285 | download = 'wget --user-agent=pksetup "%(url)s"' % locals() |
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286 | if self.confirmCommand("to download %(name)s" % locals(), download) : |
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287 | self.confirmCommand("to install %(name)s" % locals(), commands) |
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288 | self.confirmCommand("to remove the temporary directory %(directory)s" % locals(), |
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289 | "rm -fr %(directory)s" % locals(), |
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290 | record=False) |
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291 | os.chdir(olddirectory) |
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292 | |
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293 | def waitPrintersOnline(self) : |
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294 | """Asks the admin to switch all printers ON.""" |
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295 | while not self.yesno("First you MUST switch ALL your printers ON. Are ALL your printers ON") : |
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296 | pass |
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297 | |
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298 | def setupDatabase(self) : |
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299 | """Creates the database.""" |
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300 | pykotadirectory = self.pykotadirectory |
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301 | self.confirmCommand("to create PyKota's database in PostgreSQL", 'su - postgres -c "psql -f %(pykotadirectory)s/postgresql/pykota-postgresql.sql template1"' % locals()) |
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302 | |
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303 | def configurePostgreSQL(self) : |
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304 | """Configures PostgreSQL for PyKota to work.""" |
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305 | pgconffiles = self.confirmPipe("to find PostgreSQL's configuration files", "find /etc -name postgresql.conf 2>/dev/null") |
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306 | if pgconffiles is not False : |
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307 | pgconffiles = [part.strip() for part in pgconffiles.split()] |
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308 | pgconfdirs = [os.path.split(pgconffile)[0] for pgconffile in pgconffiles] |
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309 | for i in range(len(pgconfdirs)) : |
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310 | pgconfdir = pgconfdirs[i] |
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311 | pgconffile = pgconffiles[i] |
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312 | if (len(pgconfdirs) == 1) or self.yesno("Do PostgreSQL configuration files reside in %(pgconfdir)s" % locals()) : |
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313 | answer = self.confirmPipe("to see if PostgreSQL accepts TCP/IP connections", 'egrep "\\"^tcpip_socket|^listen_addresses\\"" %(pgconffile)s' % locals()) |
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314 | conflines = pghbaconf.split("\n") |
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315 | if answer is not False : |
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316 | answer = answer.strip().lower() |
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317 | tcpip = answer.endswith("true") |
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318 | if tcpip is False : |
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319 | tcpip = answer.startswith("listen_addresses") |
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320 | else : |
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321 | tcpip = False |
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322 | if tcpip : |
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323 | conflines.insert(2, "host\tpykota\tpykotaadmin,pykotauser\t127.0.0.1\t255.255.255.255\tmd5") |
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324 | else : |
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325 | conflines.insert(1, "local\tpykota\tpykotaadmin,pykotauser\t\tmd5") |
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326 | conf = "\n".join(conflines) |
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327 | port = 5432 |
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328 | if tcpip : |
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329 | answer = self.confirmPipe("to see on which TCP port PostgreSQL accepts connections", "grep ^port %(pgconffile)s" % locals()) |
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330 | if answer is not False : |
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331 | try : |
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332 | port = int([p.strip() for p in answer.strip().split("=")][1]) |
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333 | except (ValueError, IndexError, TypeError) : |
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334 | pass |
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335 | self.confirmCommand("to configure PostgreSQL correctly for PyKota", 'echo "%(conf)s" >%(pgconfdir)s/pg_hba.conf' % locals()) |
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336 | self.confirmCommand("to make PostgreSQL take the changes into account", self.pgrestart) |
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337 | return (tcpip, port) |
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338 | return (None, None) |
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339 | |
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340 | def genConfig(self, adminname, adminemail, dnsdomain, smtpserver, home, tcpip, port) : |
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341 | """Generates minimal configuration files for PyKota.""" |
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342 | if tcpip : |
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343 | storageserver = "localhost:%i" % port |
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344 | else : |
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345 | storageserver = "" |
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346 | conf = pykotaconf % locals() |
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347 | self.confirmCommand("to generate PyKota's main configuration file", 'echo "%(conf)s" >%(home)s/pykota.conf' % locals()) |
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348 | conf = pykotadminconf % locals() |
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349 | self.confirmCommand("to generate PyKota's administrators configuration file", 'echo "%(conf)s" >%(home)s/pykotadmin.conf' % locals()) |
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350 | self.confirmCommand("to change permissions on PyKota's administrators configuration file", "chmod 640 %(home)s/pykotadmin.conf" % locals()) |
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351 | self.confirmCommand("to change permissions on PyKota's main configuration file", "chmod 644 %(home)s/pykota.conf" % locals()) |
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352 | self.confirmCommand("to change ownership of PyKota's configuration files", "chown pykota.pykota %(home)s/pykota.conf %(home)s/pykotadmin.conf" % locals()) |
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353 | answer = self.confirmPipe("to automatically detect the best settings for your printers", "pkturnkey --doconf 2>/dev/null") |
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354 | if answer is not False : |
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355 | lines = answer.split("\n") |
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356 | begin = end = None |
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357 | for i in range(len(lines)) : |
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358 | line = lines[i] |
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359 | if line.strip().startswith("--- CUT ---") : |
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360 | if begin is None : |
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361 | begin = i |
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362 | else : |
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363 | end = i |
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364 | |
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365 | if (begin is not None) and (end is not None) : |
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366 | suffix = "\n".join(lines[begin+1:end]) |
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367 | self.confirmCommand("to improve PyKota's configuration wrt your existing printers", 'echo "%(suffix)s" >>%(home)s/pykota.conf' % locals()) |
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368 | |
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369 | def addPyKotaUser(self) : |
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370 | """Adds a system user named pykota, returns its home directory or None""" |
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371 | try : |
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372 | user = pwd.getpwnam("pykota") |
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373 | except KeyError : |
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374 | if self.confirmCommand("to create a system user named 'pykota'", self.adduser) : |
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375 | try : |
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376 | return pwd.getpwnam("pykota")[5] |
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377 | except KeyError : |
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378 | return None |
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379 | else : |
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380 | return None |
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381 | else : |
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382 | return user[5] |
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383 | |
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384 | def setupBackend(self) : |
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385 | """Installs the cupspykota backend.""" |
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386 | backend = os.path.join(self.backendsdirectory, "cupspykota") |
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387 | if not os.path.exists(backend) : |
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388 | realbackend = os.path.join(self.pykotadirectory, "cupspykota") |
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389 | self.confirmCommand("to make PyKota known to CUPS", "ln -s %(realbackend)s %(backend)s" % locals()) |
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390 | self.confirmCommand("to restart CUPS for the changes to take effect", self.cupsrestart) |
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391 | |
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392 | def managePrinters(self, printers) : |
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393 | """For each printer, asks if it should be managed with PyKota or not.""" |
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394 | for (queuename, deviceuri) in printers : |
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395 | command = 'pkprinters --add --cups --description "Printer created with pksetup" "%(queuename)s"' % locals() |
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396 | self.confirmCommand("to import the %(queuename)s print queue into PyKota's database and reroute it through PyKota" % locals(), command) |
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397 | |
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398 | def installPyKotaFiles(self) : |
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399 | """Installs PyKota files through Python's Distutils mechanism.""" |
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400 | pksetupdir = os.path.split(os.path.abspath(sys.argv[0]))[0] |
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401 | pykotadir = os.path.abspath(os.path.join(pksetupdir, "..")) |
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402 | setuppy = os.path.join(pykotadir, "setup.py") |
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403 | if os.path.exists(setuppy) : |
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404 | self.confirmCommand("to install PyKota files on your system", "python %(setuppy)s install" % locals()) |
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405 | |
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406 | def setup(self) : |
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407 | """Installation procedure.""" |
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408 | self.installPyKotaFiles() |
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409 | self.waitPrintersOnline() |
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410 | adminname = raw_input("What is the name of the print administrator ? ").strip() |
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411 | adminemail = raw_input("What is the email address of the print administrator ? ").strip() |
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412 | dnsdomain = raw_input("What is your DNS domain name ? ").strip() |
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413 | smtpserver = raw_input("What is the hostname or IP address of your SMTP server ? ").strip() |
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414 | homedirectory = self.addPyKotaUser() |
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415 | if homedirectory is None : |
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416 | sys.stderr.write("Installation can't proceed. You MUST create a system user named 'pykota'.\n") |
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417 | else : |
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418 | self.upgradeSystem() |
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419 | self.setupPackages() |
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420 | self.downloadOtherPackages() |
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421 | (tcpip, port) = self.configurePostgreSQL() |
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422 | self.genConfig(adminname, adminemail, dnsdomain, smtpserver, homedirectory, tcpip, port) |
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423 | self.setupDatabase() |
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424 | self.setupBackend() |
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425 | self.managePrinters(self.listPrinters()) |
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426 | sys.stdout.write("%s\n" % nowready) |
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427 | sys.stdout.write("The script %s can be used to reinstall in unattended mode.\n\n" % self.genInstaller()) |
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428 | |
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429 | def genInstaller(self) : |
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430 | """Generates an installer script.""" |
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431 | scriptname = "/tmp/pykota-installer.sh" |
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432 | commands = [ "#! /bin/sh", |
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433 | "#", |
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434 | "# PyKota installer script.", |
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435 | "#", |
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436 | "# This script was automatically generated.", |
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437 | "#", |
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438 | ] + self.launched |
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439 | script = open(scriptname, "w") |
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440 | script.write("\n".join(commands)) |
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441 | script.close() |
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442 | os.chmod(scriptname, \ |
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443 | stat.S_IRWXU | stat.S_IRGRP | stat.S_IXGRP | stat.S_IROTH | stat.S_IXOTH) |
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444 | return scriptname |
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445 | |
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446 | |
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447 | class Debian(PyKotaSetup) : |
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448 | """Class for Debian installer.""" |
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449 | def setupPackages(self) : |
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450 | """Installs missing Debian packages.""" |
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451 | self.confirmCommand("to install missing dependencies", "apt-get install %s" % " ".join(self.packages)) |
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452 | |
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453 | def upgradeSystem(self) : |
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454 | """Upgrades the Debian setup.""" |
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455 | if self.confirmCommand("to grab an up-to-date list of available packages", "apt-get update") : |
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456 | self.confirmCommand("to put your system up-to-date", "apt-get -y dist-upgrade") |
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457 | |
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458 | class Ubuntu(Debian) : |
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459 | """Class for Ubuntu installer.""" |
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460 | pass |
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461 | |
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462 | if __name__ == "__main__" : |
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463 | retcode = 0 |
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464 | if (len(sys.argv) != 2) or (sys.argv[1] == "-h") or (sys.argv[1] == "--help") : |
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465 | sys.stdout.write("pksetup v0.1 (c) 2003-2008 Jerome Alet - alet@librelogiciel.com\n\nusage : pksetup distribution\n\ne.g. : pksetup debian\n\nIMPORTANT : only Debian and Ubuntu are currently supported.\n") |
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466 | elif (sys.argv[1] == "-v") or (sys.argv[1] == "--version") : |
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467 | sys.stdout.write("0.1\n") # pksetup's own version number |
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468 | else : |
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469 | classname = sys.argv[1].strip().title() |
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470 | try : |
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471 | installer = globals()[classname]() |
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472 | except KeyError : |
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473 | sys.stderr.write("There's currently no support for the %s distribution, sorry.\n" % sys.argv[1]) |
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474 | retcode = -1 |
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475 | else : |
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476 | try : |
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477 | retcode = installer.setup() |
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478 | except KeyboardInterrupt : |
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479 | sys.stderr.write("\n\n\nWARNING : Setup was aborted at user's request !\n\n") |
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480 | retcode = -1 |
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481 | sys.exit(retcode) |
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