1 | #! /usr/bin/env python |
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2 | # -*- coding: ISO-8859-15 -*- |
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3 | |
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4 | # PyKota Turn Key tool |
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5 | # |
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6 | # PyKota - Print Quotas for CUPS and LPRng |
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7 | # |
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8 | # (c) 2003, 2004, 2005 Jerome Alet <alet@librelogiciel.com> |
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9 | # This program is free software; you can redistribute it and/or modify |
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10 | # it under the terms of the GNU General Public License as published by |
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11 | # the Free Software Foundation; either version 2 of the License, or |
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12 | # (at your option) any later version. |
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13 | # |
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14 | # This program is distributed in the hope that it will be useful, |
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15 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | # GNU General Public License for more details. |
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18 | # |
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19 | # You should have received a copy of the GNU General Public License |
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20 | # along with this program; if not, write to the Free Software |
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21 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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22 | # |
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23 | # $Id$ |
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24 | # |
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25 | # |
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26 | |
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27 | import sys |
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28 | import os |
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29 | import pwd |
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30 | import grp |
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31 | |
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32 | from pykota.tool import Tool, PyKotaToolError, crashed, N_ |
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33 | |
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34 | __doc__ = N_("""pkturnkey v%(__version__)s (c) %(__years__)s %(__author__)s |
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35 | |
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36 | A turn key tool for PyKota. When launched, this command will initialize |
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37 | PyKota's database with all existing print queues and some or all users. |
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38 | For now, no prices or limits are set, so printing is fully accounted |
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39 | for, but not limited. |
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40 | |
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41 | command line usage : |
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42 | |
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43 | pkturnkey [options] |
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44 | |
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45 | options : |
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46 | |
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47 | -v | --version Prints pkturnkey version number then exits. |
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48 | -h | --help Prints this message then exits. |
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49 | |
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50 | -d | --dousers Manages users accounts as well. |
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51 | |
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52 | -D | --dogroups Manages users groups as well. |
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53 | Implies -d | --dousers. |
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54 | |
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55 | -e | --emptygroups Includes empty groups. |
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56 | |
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57 | -f | --force Modifies the database instead of printing what |
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58 | it would do. |
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59 | |
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60 | -u | --uidmin uid Only adds users whose uid is greater than or equal to |
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61 | uid. You can pass an username there as well, and its |
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62 | uid will be used automatically. |
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63 | If not set, 0 will be used automatically. |
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64 | Implies -d | --dousers. |
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65 | |
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66 | -U | --uidmax uid Only adds users whose uid is lesser than or equal to |
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67 | uid. You can pass an username there as well, and its |
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68 | uid will be used automatically. |
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69 | If not set, a large value will be used automatically. |
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70 | Implies -d | --dousers. |
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71 | |
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72 | -g | --gidmin gid Only adds groups whose gid is greater than or equal to |
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73 | gid. You can pass a groupname there as well, and its |
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74 | gid will be used automatically. |
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75 | If not set, 0 will be used automatically. |
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76 | Implies -D | --dogroups. |
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77 | |
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78 | -G | --gidmax gid Only adds groups whose gid is lesser than or equal to |
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79 | gid. You can pass a groupname there as well, and its |
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80 | gid will be used automatically. |
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81 | If not set, a large value will be used automatically. |
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82 | Implies -D | --dogroups. |
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83 | |
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84 | examples : |
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85 | |
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86 | $ pkturnkey --dousers --uidmin jerome |
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87 | |
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88 | Will simulate the initialization of PyKota's database will all existing |
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89 | printers and print accounts for all users whose uid is greater than |
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90 | or equal to jerome's one. Won't manage any users group. |
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91 | |
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92 | To REALLY initialize the database instead of simulating it, please |
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93 | use the -f | --force command line switch. |
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94 | """) |
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95 | |
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96 | class PKTurnKey(Tool) : |
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97 | """A class for an initialization tool.""" |
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98 | def listPrinters(self) : |
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99 | """Returns a list of tuples (queuename, deviceuri) for all existing print queues.""" |
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100 | self.printInfo("Extracting all print queues.") |
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101 | result = os.popen("lpstat -v", "r") |
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102 | lines = result.readlines() |
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103 | result.close() |
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104 | printers = [] |
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105 | for line in lines : |
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106 | (begin, end) = line.split(':', 1) |
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107 | deviceuri = end.strip() |
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108 | queuename = begin.split()[-1] |
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109 | printers.append((queuename, deviceuri)) |
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110 | return printers |
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111 | |
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112 | def listUsers(self, uidmin, uidmax) : |
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113 | """Returns a list of users whose uids are between uidmin and uidmax.""" |
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114 | self.printInfo("Extracting all users whose uid is between %s and %s." % (uidmin, uidmax)) |
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115 | return [(entry[0], entry[3]) for entry in pwd.getpwall() if uidmin <= entry[2] <= uidmax] |
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116 | |
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117 | def listGroups(self, gidmin, gidmax, users) : |
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118 | """Returns a list of groups whose gids are between gidmin and gidmax.""" |
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119 | self.printInfo("Extracting all groups whose gid is between %s and %s." % (gidmin, gidmax)) |
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120 | groups = [(entry[0], entry[2], entry[3]) for entry in grp.getgrall() if gidmin <= entry[2] <= gidmax] |
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121 | gidusers = {} |
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122 | usersgid = {} |
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123 | for u in users : |
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124 | gidusers.setdefault(u[1], []).append(u[0]) |
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125 | usersgid.setdefault(u[0], []).append(u[1]) |
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126 | |
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127 | membership = {} |
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128 | for g in range(len(groups)) : |
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129 | (gname, gid, members) = groups[g] |
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130 | newmembers = {} |
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131 | for m in members : |
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132 | newmembers[m] = m |
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133 | try : |
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134 | usernames = gidusers[gid] |
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135 | except KeyError : |
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136 | pass |
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137 | else : |
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138 | for username in usernames : |
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139 | if not newmembers.has_key(username) : |
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140 | newmembers[username] = username |
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141 | for member in newmembers.keys() : |
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142 | if not usersgid.has_key(member) : |
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143 | del newmembers[member] |
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144 | membership[gname] = newmembers.keys() |
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145 | return membership |
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146 | |
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147 | def runCommand(self, command, dryrun) : |
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148 | """Launches an external command.""" |
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149 | self.printInfo("%s" % command) |
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150 | if not dryrun : |
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151 | os.system(command) |
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152 | |
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153 | def createPrinters(self, printers, dryrun=0) : |
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154 | """Creates all printers in PyKota's database.""" |
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155 | if printers : |
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156 | needswarning = [p[0] for p in printers if p[1].find("cupspykota") == -1] |
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157 | command = "pkprinters --add %s" % " ".join(['"%s"' % p[0] for p in printers]) |
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158 | self.runCommand(command, dryrun) |
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159 | for p in needswarning : |
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160 | self.printInfo(_("Printer %s is not managed by PyKota yet. Please modify printers.conf and restart CUPS.") % p, "warn") |
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161 | |
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162 | def createUsers(self, users, dryrun=0) : |
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163 | """Creates all users in PyKota's database.""" |
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164 | if users : |
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165 | command = "edpykota --add --noquota %s" % " ".join(['"%s"' % u for u in users]) |
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166 | self.runCommand(command, dryrun) |
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167 | |
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168 | def createGroups(self, groups, dryrun=0) : |
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169 | """Creates all groups in PyKota's database.""" |
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170 | if groups : |
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171 | commands = ["edpykota --groups --add --noquota %s" % " ".join(['"%s"' % g for g in groups.keys()])] |
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172 | revmembership = {} |
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173 | for (groupname, usernames) in groups.items() : |
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174 | for username in usernames : |
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175 | revmembership.setdefault(username, []).append(groupname) |
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176 | for (username, groupnames) in revmembership.items() : |
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177 | commands.append('edpykota --ingroups %s "%s"' % (",".join(['"%s"' % g for g in groupnames]), username)) |
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178 | for command in commands : |
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179 | self.runCommand(command, dryrun) |
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180 | |
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181 | def main(self, names, options) : |
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182 | """Intializes PyKota's database.""" |
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183 | if not self.config.isAdmin : |
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184 | raise PyKotaToolError, "%s : %s" % (pwd.getpwuid(os.geteuid())[0], _("You're not allowed to use this command.")) |
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185 | |
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186 | # TODO : names not used for now |
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187 | if not names : |
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188 | names = ["*"] |
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189 | |
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190 | self.printInfo(_("Please be patient...")) |
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191 | dryrun = not options["force"] |
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192 | if dryrun : |
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193 | self.printInfo(_("Don't worry, the database WILL NOT BE MODIFIED.")) |
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194 | else : |
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195 | self.printInfo(_("Please WORRY NOW, the database WILL BE MODIFIED.")) |
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196 | |
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197 | if options["dousers"] : |
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198 | if not options["uidmin"] : |
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199 | self.printInfo(_("System users will have a print account as well !"), "warn") |
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200 | uidmin = 0 |
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201 | else : |
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202 | try : |
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203 | uidmin = int(options["uidmin"]) |
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204 | except : |
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205 | try : |
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206 | uidmin = pwd.getpwnam(options["uidmin"])[2] |
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207 | except KeyError, msg : |
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208 | raise PyKotaToolError, _("Unknown username %s : %s") % (options["uidmin"], msg) |
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209 | |
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210 | if not options["uidmax"] : |
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211 | uidmax = sys.maxint |
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212 | else : |
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213 | try : |
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214 | uidmax = int(options["uidmax"]) |
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215 | except : |
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216 | try : |
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217 | uidmax = pwd.getpwnam(options["uidmax"])[2] |
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218 | except KeyError, msg : |
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219 | raise PyKotaToolError, _("Unknown username %s : %s") % (options["uidmax"], msg) |
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220 | |
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221 | if uidmin > uidmax : |
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222 | (uidmin, uidmax) = (uidmax, uidmin) |
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223 | users = self.listUsers(uidmin, uidmax) |
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224 | else : |
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225 | users = [] |
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226 | |
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227 | if options["dogroups"] : |
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228 | if not options["gidmin"] : |
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229 | self.printInfo(_("System groups will have a print account as well !"), "warn") |
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230 | gidmin = 0 |
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231 | else : |
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232 | try : |
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233 | gidmin = int(options["gidmin"]) |
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234 | except : |
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235 | try : |
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236 | gidmin = grp.getgrnam(options["gidmin"])[2] |
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237 | except KeyError, msg : |
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238 | raise PyKotaToolError, _("Unknown groupname %s : %s") % (options["gidmin"], msg) |
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239 | |
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240 | if not options["gidmax"] : |
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241 | gidmax = sys.maxint |
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242 | else : |
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243 | try : |
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244 | gidmax = int(options["gidmax"]) |
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245 | except : |
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246 | try : |
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247 | gidmax = grp.getgrnam(options["gidmax"])[2] |
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248 | except KeyError, msg : |
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249 | raise PyKotaToolError, _("Unknown groupname %s : %s") % (options["gidmax"], msg) |
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250 | |
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251 | if gidmin > gidmax : |
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252 | (gidmin, gidmax) = (gidmax, gidmin) |
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253 | groups = self.listGroups(gidmin, gidmax, users) |
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254 | if not options["emptygroups"] : |
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255 | for (groupname, members) in groups.items() : |
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256 | if not members : |
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257 | del groups[groupname] |
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258 | else : |
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259 | groups = [] |
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260 | |
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261 | printers = self.listPrinters() |
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262 | if printers : |
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263 | self.createPrinters(printers, dryrun) |
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264 | self.createUsers([entry[0] for entry in users], dryrun) |
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265 | self.createGroups(groups, dryrun) |
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266 | |
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267 | if dryrun : |
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268 | self.printInfo(_("Simulation terminated.")) |
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269 | else : |
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270 | self.printInfo(_("Database initialized !")) |
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271 | |
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272 | |
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273 | if __name__ == "__main__" : |
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274 | retcode = 0 |
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275 | try : |
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276 | short_options = "hvdDefu:U:g:G:" |
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277 | long_options = ["help", "version", "dousers", "dogroups", \ |
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278 | "emptygroups", "force", "uidmin=", "uidmax=", \ |
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279 | "gidmin=", "gidmax="] |
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280 | |
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281 | # Initializes the command line tool |
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282 | manager = PKTurnKey(doc=__doc__) |
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283 | manager.deferredInit() |
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284 | |
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285 | # parse and checks the command line |
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286 | (options, args) = manager.parseCommandline(sys.argv[1:], \ |
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287 | short_options, \ |
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288 | long_options, \ |
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289 | allownothing=1) |
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290 | |
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291 | # sets long options |
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292 | options["help"] = options["h"] or options["help"] |
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293 | options["version"] = options["v"] or options["version"] |
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294 | options["dousers"] = options["d"] or options["dousers"] |
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295 | options["dogroups"] = options["D"] or options["dogroups"] |
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296 | options["emptygroups"] = options["e"] or options["emptygroups"] |
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297 | options["force"] = options["f"] or options["force"] |
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298 | options["uidmin"] = options["u"] or options["uidmin"] |
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299 | options["uidmax"] = options["U"] or options["uidmax"] |
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300 | options["gidmin"] = options["g"] or options["gidmin"] |
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301 | options["gidmax"] = options["G"] or options["gidmax"] |
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302 | |
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303 | if options["uidmin"] or options["uidmax"] : |
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304 | if not options["dousers"] : |
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305 | manager.printInfo(_("The --uidmin or --uidmax command line option implies --dousers as well."), "warn") |
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306 | options["dousers"] = 1 |
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307 | |
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308 | if options["gidmin"] or options["gidmax"] : |
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309 | if not options["dogroups"] : |
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310 | manager.printInfo(_("The --gidmin or --gidmax command line option implies --dogroups as well."), "warn") |
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311 | options["dogroups"] = 1 |
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312 | |
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313 | if options["dogroups"] : |
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314 | if not options["dousers"] : |
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315 | manager.printInfo(_("The --dogroups command line option implies --dousers as well."), "warn") |
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316 | options["dousers"] = 1 |
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317 | |
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318 | if options["help"] : |
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319 | manager.display_usage_and_quit() |
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320 | elif options["version"] : |
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321 | manager.display_version_and_quit() |
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322 | else : |
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323 | retcode = manager.main(args, options) |
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324 | except KeyboardInterrupt : |
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325 | sys.stderr.write("\nInterrupted with Ctrl+C !\n") |
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326 | except SystemExit : |
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327 | pass |
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328 | except : |
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329 | try : |
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330 | manager.crashed("pkturnkey failed") |
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331 | except : |
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332 | crashed("pkturnkey failed") |
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333 | retcode = -1 |
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334 | |
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335 | try : |
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336 | manager.storage.close() |
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337 | except (TypeError, NameError, AttributeError) : |
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338 | pass |
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339 | |
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340 | sys.exit(retcode) |
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