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package PlugAuth::Plugin::FlatAuth; |
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# ABSTRACT: Authentication using Flat Files for PlugAuth |
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our $VERSION = '0.38'; # VERSION |
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21758
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use strict; |
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1473
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use warnings; |
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1461
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use 5.010001; |
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use Log::Log4perl qw( :easy ); |
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# TODO: maybe optionally use Crypt::Passwd::XS instead |
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51128
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use Crypt::PasswdMD5 qw( unix_md5_crypt apache_md5_crypt ); |
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60488
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3158
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3357
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use Role::Tiny::With; |
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33718
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with 'PlugAuth::Role::Plugin'; |
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with 'PlugAuth::Role::Auth'; |
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with 'PlugAuth::Role::Refresh'; |
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with 'PlugAuth::Role::Flat'; |
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our %Userpw; # Keys are usernames, values are lists of crypted passwords. |
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22
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sub init { |
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44
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0
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267
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shift->flat_init; |
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} |
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27
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sub refresh { |
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# Should be called with every request. |
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683
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683
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1
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6608
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my $config = __PACKAGE__->global_config; |
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683
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5013
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my @user_files = $config->user_file; |
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683
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100
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20005
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if ( grep has_changed($_), @user_files ) |
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{ |
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63
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627
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my @users = map +{ __PACKAGE__->read_file($_, lc_keys => 1) }, @user_files; |
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63
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393
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%Userpw = (); |
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63
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226
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for my $list (@users) |
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{ |
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72
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350
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for my $user (map { lc $_ } keys %$list) |
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746
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38
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{ |
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208
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100
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1203
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$Userpw{$user} //= []; |
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208
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378
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push @{ $Userpw{$user} }, $list->{$user}; |
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863
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} |
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} |
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44
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# if the user file has changed, then that may mean the |
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# group file has to be reloaded, for example, for groups |
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# with wildcards * need to be updated. |
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63
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505
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mark_changed($config->group_file); |
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} |
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} |
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51
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52
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sub _validate_pw |
53
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{ |
54
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146
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146
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525
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my($plain, $encrypted) = @_; |
55
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100
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334
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return 1 if do { |
56
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# crypt on an apache apr1 encrypted |
57
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# password seems to return undef |
58
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# on Debian 8 (probably others) |
59
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146
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16679
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my $ret = crypt($plain, $encrypted); |
60
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146
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100
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1916
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(defined $ret) && ($ret eq $encrypted); |
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}; |
62
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63
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# idea borrowed from Authen::Simple::Password |
64
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54
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100
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459
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if($encrypted =~ /^\$(\w+)\$/) |
65
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{ |
66
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38
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100
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66
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470
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return 1 if $1 eq 'apr1' && apache_md5_crypt( $plain, $encrypted ) eq $encrypted; |
67
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68
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# on at least modern Linux crypt will accept a UNIX |
69
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# MD5 password, so this may be redundant |
70
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9
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50
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33
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173637
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return 1 if $1 eq '1' && unix_md5_crypt ( $plain, $encrypted ) eq $encrypted; |
71
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} |
72
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25
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190
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return 0; |
73
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} |
74
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75
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sub check_credentials { |
76
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159
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159
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1
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803
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my ($self, $user,$pw) = @_; |
77
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159
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591
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$user = lc $user; |
78
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79
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159
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100
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100
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1393
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if($pw && $Userpw{$user}) |
80
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{ |
81
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138
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100
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374
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return 1 if grep { _validate_pw($pw, $_) } @{ $Userpw{$user} }; |
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146
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554
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138
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547
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82
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} |
83
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38
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324
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return $self->deligate_check_credentials($user, $pw); |
84
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} |
85
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86
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87
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sub all_users { |
88
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return sort keys %Userpw; |
89
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} |
90
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91
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92
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sub _created_encrypted_password |
93
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{ |
94
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31
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31
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227
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my($plain) = @_; |
95
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31
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314
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my $salt = join '', ('.', '/', 0..9, 'A'..'Z', 'a'..'z')[rand 64, rand 64]; |
96
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31
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203
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apache_md5_crypt($plain, $salt); |
97
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} |
98
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99
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23
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23
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1
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159
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sub create_user { goto &create_user_cb } |
100
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101
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sub create_user_cb |
102
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{ |
103
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26
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26
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1
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129
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my($self, $user, $password, $cb) = @_; |
104
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105
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26
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100
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100
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275
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unless($user && $password) |
106
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{ |
107
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2
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10
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WARN "User or password not provided"; |
108
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2
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2585
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return 0; |
109
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} |
110
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111
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24
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111
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$user = lc $user; |
112
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113
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24
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50
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145
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if(defined $Userpw{$user}) |
114
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{ |
115
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0
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0
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WARN "User $user already exists"; |
116
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0
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0
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return 0; |
117
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} |
118
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119
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24
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189
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foreach my $filename ($self->global_config->user_file) |
120
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{ |
121
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24
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50
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1492
|
next unless -w $filename; |
122
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123
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24
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150
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$password = _created_encrypted_password($password); |
124
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125
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my $ok = $self->lock_and_update_file($filename, sub { |
126
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40
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40
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400
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use autodie; |
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40
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227
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40
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438
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127
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24
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24
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97
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my($fh) = @_; |
128
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129
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24
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89
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my $buffer = ''; |
130
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24
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461
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while(! eof $fh) |
131
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{ |
132
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47
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142
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my $line = <$fh>; |
133
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47
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98
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chomp $line; |
134
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47
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197
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$buffer .= "$line\n"; |
135
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} |
136
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24
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176
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$buffer .= join(':', $user, $password) . "\n"; |
137
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138
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# as a rule we don't update the data structure |
139
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# directly, we update the config files and let |
140
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# refresh do that on the next request, but in |
141
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# this case the callback is used to modify groups, |
142
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# and for that to work we need to update the |
143
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# userdatabase first. |
144
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24
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123
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$Userpw{$user} = $password; |
145
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24
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100
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123
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$cb->() if defined $cb; |
146
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147
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24
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466
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$buffer; |
148
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24
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460839
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}); |
149
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150
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24
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50
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315
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return 0 unless $ok; |
151
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152
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24
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234
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INFO "created user $user"; |
153
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24
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41224
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return 1; |
154
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} |
155
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156
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0
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0
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ERROR "None of the user files were writable"; |
157
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0
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0
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return 0; |
158
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} |
159
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160
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161
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sub change_password |
162
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{ |
163
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9
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9
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1
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45
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my($self, $user, $password) = @_; |
164
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165
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9
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100
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66
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86
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unless($user && $password) |
166
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{ |
167
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1
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8
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WARN "User or password not provided"; |
168
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1
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1672
|
return 0; |
169
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} |
170
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171
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8
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55
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$user = lc $user; |
172
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173
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8
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100
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51
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unless(defined $Userpw{$user}) |
174
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{ |
175
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1
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12
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WARN "User $user does not exist"; |
176
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1
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1837
|
return 0; |
177
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} |
178
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179
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7
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38
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$password = _created_encrypted_password($password); |
180
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181
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7
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145456
|
foreach my $filename ($self->global_config->user_file) |
182
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{ |
183
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$self->lock_and_update_file($filename, sub { |
184
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40
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40
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343708
|
use autodie; |
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40
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132
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40
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308
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185
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7
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7
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29
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my($fh) = @_; |
186
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187
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7
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25
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my $buffer = ''; |
188
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189
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7
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116
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while(! eof $fh) |
190
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{ |
191
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22
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79
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my $line = <$fh>; |
192
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22
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52
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chomp $line; |
193
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22
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85
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my($thisuser, $oldpassword) = split /:/, $line; |
194
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22
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100
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100
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143
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if(defined $thisuser && lc($thisuser) eq $user) |
195
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{ |
196
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7
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69
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$buffer .= join(':', $user, $password) . "\n"; |
197
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} |
198
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else |
199
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{ |
200
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15
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92
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$buffer .= "$line\n"; |
201
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} |
202
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} |
203
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204
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7
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43
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$buffer; |
205
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7
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301
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}); |
206
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} |
207
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208
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7
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77
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INFO "user password changed $user"; |
209
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7
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11784
|
return 1; |
210
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} |
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212
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213
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sub delete_user |
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{ |
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6
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1
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my($self, $user) = @_; |
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217
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$user = lc $user; |
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219
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6
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50
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unless(defined $Userpw{$user}) |
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{ |
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0
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0
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WARN "User $user does not exist"; |
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0
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0
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return 0; |
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} |
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foreach my $filename ($self->global_config->user_file) |
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{ |
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$self->lock_and_update_file($filename, sub { |
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331825
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use autodie; |
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40
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307
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my($fh) = @_; |
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31
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my $buffer = ''; |
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while(! eof $fh) |
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{ |
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my $line = <$fh>; |
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chomp $line; |
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184
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my($thisuser, $password) = split /:/, $line; |
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next if ($thisuser//'') eq $user; |
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$buffer .= "$line\n"; |
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} |
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39
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$buffer; |
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}); |
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} |
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61
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INFO "deleted user $user"; |
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9630
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return 1; |
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} |
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248
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1; |
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__END__ |
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=pod |
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=encoding UTF-8 |
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256
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=head1 NAME |
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PlugAuth::Plugin::FlatAuth - Authentication using Flat Files for PlugAuth |
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260
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=head1 VERSION |
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version 0.38 |
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264
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=head1 SYNOPSIS |
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266
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In your PlugAuth.conf file: |
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268
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--- |
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url: http://localhost:1234 |
270
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user_file: /path/to/user.txt |
271
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272
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Touch the user file: |
273
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274
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% touch /path/to/user.txt |
275
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276
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Add users using htpasswd (comes with Apache): |
277
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278
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|
% htpasswd -m /path/to/user.txt newusername |
279
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|
New password: |
280
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|
|
Re-type new password: |
281
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282
|
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|
|
Start PlugAuth: |
283
|
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284
|
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|
|
% plugauth start |
285
|
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286
|
|
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|
|
=head1 DESCRIPTION |
287
|
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|
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|
288
|
|
|
|
|
|
|
This is the default Authentication plugin for L<PlugAuth>. It is designed to work closely |
289
|
|
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|
|
|
|
with L<PlugAuth::Plugin::FlatAuthz> which is the default Authorization plugin. |
290
|
|
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291
|
|
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|
|
This plugin provides storage and password verification for users. This plugin also provides |
292
|
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|
|
a mechanism for PlugAuth to change passwords, create and delete users. Although the user |
293
|
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|
|
|
information is stored in flat files, the entire user database is kept in memory and the |
294
|
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|
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|
|
files are only re-read when a change is detected, so this plugin is relatively fast. |
295
|
|
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|
|
296
|
|
|
|
|
|
|
=head1 CONFIGURATION |
297
|
|
|
|
|
|
|
|
298
|
|
|
|
|
|
|
=head2 user_file |
299
|
|
|
|
|
|
|
|
300
|
|
|
|
|
|
|
The user file is |
301
|
|
|
|
|
|
|
specified in the PlugAuth.conf file using the user_file field. The format of the user |
302
|
|
|
|
|
|
|
is a basic user:password comma separated list, which is compatible with Apache password |
303
|
|
|
|
|
|
|
files. Either the UNIX crypt, Apache MD5 or UNIX MD5 format may be used for the passwords. |
304
|
|
|
|
|
|
|
|
305
|
|
|
|
|
|
|
foo:$apr1$F3VOmjio$O8dodh0VEljQvuzeruvsb0 |
306
|
|
|
|
|
|
|
bar:yOJEfNAE.gppk |
307
|
|
|
|
|
|
|
|
308
|
|
|
|
|
|
|
It is possible to have multiple user files if you specify a list: |
309
|
|
|
|
|
|
|
|
310
|
|
|
|
|
|
|
--- |
311
|
|
|
|
|
|
|
user_file: |
312
|
|
|
|
|
|
|
- /path/to/user1.txt |
313
|
|
|
|
|
|
|
- /path/to/user2.txt |
314
|
|
|
|
|
|
|
|
315
|
|
|
|
|
|
|
=head1 METHODS |
316
|
|
|
|
|
|
|
|
317
|
|
|
|
|
|
|
=head2 PlugAuth::Plugin::FlatAuth-E<gt>refresh |
318
|
|
|
|
|
|
|
|
319
|
|
|
|
|
|
|
Refresh the data (checks the files, and re-reads if necessary). |
320
|
|
|
|
|
|
|
|
321
|
|
|
|
|
|
|
=head2 PlugAuth::Plugin::FlatAuth-E<gt>check_credentials( $user, $password ) |
322
|
|
|
|
|
|
|
|
323
|
|
|
|
|
|
|
Given a user and password, check to see if the password is correct. |
324
|
|
|
|
|
|
|
|
325
|
|
|
|
|
|
|
=head2 PlugAuth::Plugin::FlatAuth-E<gt>all_users |
326
|
|
|
|
|
|
|
|
327
|
|
|
|
|
|
|
Returns a list of all users. |
328
|
|
|
|
|
|
|
|
329
|
|
|
|
|
|
|
=head2 PlugAuth::Plugin::FlatAuth-E<gt>create_user( $user, $password ) |
330
|
|
|
|
|
|
|
|
331
|
|
|
|
|
|
|
=head2 PlugAuth::Plugin::FlatAuth-E<gt>create_user_cb( $user, $password, $callback) |
332
|
|
|
|
|
|
|
|
333
|
|
|
|
|
|
|
Create a new user with the given password. |
334
|
|
|
|
|
|
|
|
335
|
|
|
|
|
|
|
=head2 PlugAuth::Plugin::FlatAuth-E<gt>change_password( $user, $password ) |
336
|
|
|
|
|
|
|
|
337
|
|
|
|
|
|
|
Change the password of the given user. |
338
|
|
|
|
|
|
|
|
339
|
|
|
|
|
|
|
=head2 PlugAuth::Plugin::FlatAuth-E<gt>delete_user( $user ) |
340
|
|
|
|
|
|
|
|
341
|
|
|
|
|
|
|
Delete the given user. |
342
|
|
|
|
|
|
|
|
343
|
|
|
|
|
|
|
=head1 SEE ALSO |
344
|
|
|
|
|
|
|
|
345
|
|
|
|
|
|
|
L<PlugAuth>, L<PlugAuth::Plugin::FlatAuthz> |
346
|
|
|
|
|
|
|
|
347
|
|
|
|
|
|
|
=head1 AUTHOR |
348
|
|
|
|
|
|
|
|
349
|
|
|
|
|
|
|
Graham Ollis <gollis@sesda3.com> |
350
|
|
|
|
|
|
|
|
351
|
|
|
|
|
|
|
=head1 COPYRIGHT AND LICENSE |
352
|
|
|
|
|
|
|
|
353
|
|
|
|
|
|
|
This software is copyright (c) 2012 by NASA GSFC. |
354
|
|
|
|
|
|
|
|
355
|
|
|
|
|
|
|
This is free software; you can redistribute it and/or modify it under |
356
|
|
|
|
|
|
|
the same terms as the Perl 5 programming language system itself. |
357
|
|
|
|
|
|
|
|
358
|
|
|
|
|
|
|
=cut |