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package WWW::Mechanize::Shell; |
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3
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971509
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use strict; |
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117
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32
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995
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4
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168
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use Carp; |
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87
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32
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2142
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5
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23258
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use WWW::Mechanize; |
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4722045
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32
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1512
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6
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16049
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use WWW::Mechanize::FormFiller; |
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47753
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33
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1100
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7
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32
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15223
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use HTTP::Cookies; |
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235282
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1175
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825
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use parent qw( Term::Shell ); |
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288
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647734
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use Exporter 'import'; |
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419
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32
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2319
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10
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11077
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use FindBin; |
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29600
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32
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1565
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11448
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use File::Temp qw(tempfile); |
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181842
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1927
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10227
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use URI::URL; |
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75090
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32
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1633
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13
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32
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32
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14088
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use Hook::LexWrap; |
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43284
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32
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162
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14
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32
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32
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13524
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use HTML::Display qw(); |
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26702
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32
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778
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15
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32
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32
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14863
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use HTML::TokeParser::Simple; |
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273068
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32
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1155
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16
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32
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32
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248
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use B::Deparse; |
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120
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32
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21911
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18
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our $VERSION = '0.59'; |
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our @EXPORT = qw( &shell ); |
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21
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=head1 NAME |
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23
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WWW::Mechanize::Shell - An interactive shell for WWW::Mechanize |
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25
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=head1 SYNOPSIS |
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27
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From the command line as |
28
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29
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perl -MWWW::Mechanize::Shell -eshell |
30
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31
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or alternatively as a custom shell program via : |
32
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33
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=for example begin |
34
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35
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#!/usr/bin/perl -w |
36
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use strict; |
37
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use WWW::Mechanize::Shell; |
38
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39
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my $shell = WWW::Mechanize::Shell->new("shell"); |
40
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41
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if (@ARGV) { |
42
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$shell->source_file( @ARGV ); |
43
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} else { |
44
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$shell->cmdloop; |
45
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}; |
46
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47
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=for example end |
48
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49
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=for example_testing |
50
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BEGIN { |
51
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require WWW::Mechanize::Shell; |
52
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$ENV{PERL_RL} = 0; |
53
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$ENV{COLUMNS} = '80'; |
54
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$ENV{LINES} = '24'; |
55
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}; |
56
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BEGIN { |
57
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no warnings 'once'; |
58
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no warnings 'redefine'; |
59
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*WWW::Mechanize::Shell::cmdloop = sub {}; |
60
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*WWW::Mechanize::Shell::display_user_warning = sub {}; |
61
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*WWW::Mechanize::Shell::source_file = sub {}; |
62
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}; |
63
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isa_ok( $shell, "WWW::Mechanize::Shell" ); |
64
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65
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=head1 DESCRIPTION |
66
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67
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This module implements a www-like shell above WWW::Mechanize |
68
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and also has the capability to output crude Perl code that recreates |
69
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the recorded session. Its main use is as an interactive starting point |
70
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for automating a session through WWW::Mechanize. |
71
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72
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The cookie support is there, but no cookies are read from your existing |
73
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browser sessions. See L on how to implement reading/writing |
74
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your current browsers cookies. |
75
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76
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=head2 Cnew %ARGS> |
77
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78
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This is the constructor for a new shell instance. Some of the options |
79
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can be passed to the constructor as parameters. |
80
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81
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By default, a file C<.mechanizerc> (respectively C under Windows) |
82
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in the users home directory is executed before the interactive shell loop is |
83
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entered. This can be used to set some defaults. If you want to supply a different |
84
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filename for the rcfile, the C parameter can be passed to the constructor : |
85
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86
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rcfile => '.myapprc', |
87
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88
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=over 4 |
89
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90
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=item B |
91
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92
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my $shell = WWW::Mechanize::Shell->new( |
93
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agent => WWW::Mechanize::Chrome->new(), |
94
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); |
95
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96
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Pass in a premade custom user agent. This object must be compatible to |
97
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L. Use this feature from the command line as |
98
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99
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perl -Ilib -MWWW::Mechanize::Chrome \ |
100
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-MWWW::Mechanize::Shell \ |
101
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-e"shell(agent => WWW::Mechanize::Chrome->new())" |
102
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103
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=back |
104
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105
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=cut |
106
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107
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sub init { |
108
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84
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84
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0
|
12580
|
my ($self) = @_; |
109
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84
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318
|
my ($name,%args) = @{$self->{API}{args}}; |
|
84
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1331
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110
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111
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84
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536
|
$self->{agent} = $args{ agent }; |
112
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84
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50
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|
813
|
if( ! $self->agent ) { |
113
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84
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50
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1653
|
my $class = $args{ agent_class } || 'WWW::Mechanize'; |
114
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84
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50
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|
1025
|
my $args = $args{ agent_args } || []; |
115
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84
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2265
|
$self->{agent} = $class->new( @$args ); |
116
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}; |
117
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118
|
84
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333741
|
$self->{formfiller} = WWW::Mechanize::FormFiller->new(default => [ Ask => $self ]); |
119
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120
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84
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1053
|
$self->{history} = []; |
121
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122
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$self->{options} = { |
123
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autosync => 0, |
124
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warnings => (exists $args{warnings} ? $args{warnings} : 1), |
125
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autorestart => 0, |
126
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84
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100
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|
1782
|
watchfiles => (exists $args{watchfiles} ? $args{watchfiles} : 1), |
|
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50
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127
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cookiefile => 'cookies.txt', |
128
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dumprequests => 0, |
129
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dumpresponses => 0, |
130
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verbose => 0, |
131
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}; |
132
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# Install the request dumper : |
133
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$self->{request_wrapper} = wrap 'LWP::UserAgent::request', |
134
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#pre => sub { printf STDERR "Dumping? %s\n",$self->option("dumprequests"); $self->request_dumper($_[1]) if $self->option("dumprequests"); }, |
135
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146
|
100
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146
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2153791
|
pre => sub { $self->request_dumper($_[1]) if $self->option("dumprequests"); }, |
136
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post => sub { |
137
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145
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100
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145
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91135224
|
$self->response_dumper($_[-1]) if $self->option("dumpresponses"); |
138
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84
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2671
|
}; |
139
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140
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$self->{redirect_ok_wrapper} = wrap 'WWW::Mechanize::redirect_ok', |
141
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post => sub { |
142
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2
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50
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2
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1982540
|
return unless $_[1]; |
143
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1
|
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6
|
$self->status( "\nRedirecting to ".$_[1]->uri."\n" ); |
144
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1
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2
|
$_[-1] |
145
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84
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11914
|
}; |
146
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147
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# Load the proxy settings from the environment |
148
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84
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50
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5591
|
$self->agent->env_proxy() |
149
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if $self->agent->can('env_proxy'); |
150
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151
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# Read our .rc file : |
152
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# I could use File::Homedir, but the docs claim it dosen't work on Win32. Maybe |
153
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|
# I should just release a patch for File::Homedir then... Not now. |
154
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83
|
|
|
|
|
14067
|
my $sourcefile; |
155
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83
|
100
|
|
|
|
368
|
if (exists $args{rcfile}) { |
156
|
80
|
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258
|
$sourcefile = delete $args{rcfile}; |
157
|
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|
} else { |
158
|
3
|
50
|
0
|
|
|
2486
|
my $userhome = $^O =~ /win32/i ? $ENV{'USERPROFILE'} || $ENV{'HOME'} : ((getpwuid($<))[7]); |
159
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3
|
50
|
|
|
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152
|
$sourcefile = "$userhome/.mechanizerc" |
160
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if -f "$userhome/.mechanizerc"; |
161
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}; |
162
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83
|
100
|
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460
|
$self->option('cookiefile', $args{cookiefile}) if (exists $args{cookiefile}); |
163
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83
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100
|
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|
423
|
$self->source_file($sourcefile) if defined $sourcefile; |
164
|
83
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247
|
$self->{browser} = undef; |
165
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166
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|
|
# Keep track of the files we consist of, to enable automatic reloading |
167
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83
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|
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|
666
|
$self->{files} = undef; |
168
|
83
|
50
|
|
|
|
503
|
if ($self->option('watchfiles')) { |
169
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83
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244
|
eval { |
170
|
83
|
50
|
33
|
|
|
2908
|
my @files = grep { -f && -r && $_ ne '-e' } values %INC; |
|
17249
|
|
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|
568190
|
|
171
|
83
|
|
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|
664
|
local $, = ","; |
172
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83
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|
14433
|
require File::Modified; |
173
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0
|
|
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|
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0
|
$self->{files} = File::Modified->new(files=>[@files]); |
174
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|
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|
|
}; |
175
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83
|
50
|
|
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|
1574
|
$self->display_user_warning( "Module File::Modified not found. Automatic reloading disabled.\n" ) |
176
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|
|
if ($@); |
177
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}; |
178
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}; |
179
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180
|
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|
=head2 C<$shell-Erelease_agent> |
181
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182
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|
Since the shell stores a reference back to itself within the |
183
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|
WWW::Mechanize instance, it is necessary to break this |
184
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|
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|
|
circular reference. This method does this. |
185
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186
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=cut |
187
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188
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|
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|
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|
|
sub release_agent { |
189
|
44
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|
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45
|
1
|
4335
|
my ($self) = @_; |
190
|
32
|
|
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32
|
|
290
|
use Data::Dumper; |
|
32
|
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|
68
|
|
|
32
|
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|
|
237680
|
|
191
|
44
|
|
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|
|
1095
|
warn Dumper $self; |
192
|
44
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|
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154104
|
undef $self->{request_wrapper}; |
193
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44
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326
|
undef $self->{redirect_ok_wrapper}; |
194
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44
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3687
|
$self->{agent} = undef; |
195
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}; |
196
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197
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=head2 C<$shell-Esource_file FILENAME> |
198
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199
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The C method executes the lines of FILENAME |
200
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as if they were typed in. |
201
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202
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$shell->source_file( $filename ); |
203
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204
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=cut |
205
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206
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sub source_file { |
207
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3
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4
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1
|
9
|
my ($self,$filename) = @_; |
208
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3
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10
|
local $_; # just to be on the safe side that we don't clobber outside users of $_ |
209
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3
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12
|
local *F; |
210
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3
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100
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181
|
open F, "< $filename" |
211
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or die "Couldn't open '$filename' : $!\n"; |
212
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1
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45
|
while () { |
213
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2
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21
|
$self->cmd($_); |
214
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warn "cmd: $_" |
215
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2
|
50
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63
|
if $self->{options}->{verbose}; |
216
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}; |
217
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1
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14
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close F; |
218
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}; |
219
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220
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|
sub add_history { |
221
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277
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278
|
0
|
1477
|
my ($self,@code) = @_; |
222
|
277
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635
|
push @{$self->{history}},[$self->line,join "",@code]; |
|
277
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1680
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223
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}; |
224
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225
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|
=head2 C<$shell-Edisplay_user_warning> |
226
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227
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|
All user warnings are routed through this routine |
228
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so they can be rerouted / disabled easily. |
229
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230
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|
=cut |
231
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232
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|
sub display_user_warning { |
233
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86
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87
|
1
|
383
|
my ($self,@message) = @_; |
234
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235
|
86
|
100
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436
|
warn @message |
236
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|
|
if $self->option('warnings'); |
237
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|
}; |
238
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239
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|
=head2 C<$shell-Eprint_paged LIST> |
240
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241
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|
Prints the text in LIST using C<$ENV{PAGER}>. If C<$ENV{PAGER}> |
242
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|
|
is empty, prints directly to C. Most of this routine |
243
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|
|
comes from the C utility. |
244
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|
245
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|
|
=cut |
246
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|
|
247
|
|
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|
|
|
|
sub print_paged { |
248
|
32
|
|
|
32
|
1
|
152
|
my $self = shift; |
249
|
|
|
|
|
|
|
|
250
|
32
|
50
|
33
|
|
|
407
|
if ($ENV{PAGER} and -t STDOUT) { |
251
|
0
|
|
|
|
|
0
|
my ($fh,$filename) = tempfile(); |
252
|
0
|
|
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|
|
0
|
print $fh $_ for @_; |
253
|
0
|
|
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|
|
0
|
close $fh; |
254
|
|
|
|
|
|
|
|
255
|
0
|
|
|
|
|
0
|
my @pagers = ($ENV{PAGER},qq{"$^X" -p}); |
256
|
0
|
|
|
|
|
0
|
foreach my $pager (@pagers) { |
257
|
0
|
0
|
|
|
|
0
|
if ($^O eq 'VMS') { |
258
|
0
|
0
|
|
|
|
0
|
last if system("$pager $filename") == 0; # quoting prevents logical expansion |
259
|
|
|
|
|
|
|
} else { |
260
|
0
|
0
|
|
|
|
0
|
last if system(qq{$pager "$filename"}) == 0; |
261
|
|
|
|
|
|
|
} |
262
|
|
|
|
|
|
|
}; |
263
|
0
|
0
|
|
|
|
0
|
unlink $filename |
264
|
|
|
|
|
|
|
or $self->display_user_warning("Couldn't unlink tempfile $filename : $!\n"); |
265
|
|
|
|
|
|
|
} else { |
266
|
32
|
|
|
|
|
792
|
print $_ for @_; |
267
|
|
|
|
|
|
|
}; |
268
|
|
|
|
|
|
|
}; |
269
|
|
|
|
|
|
|
|
270
|
976
|
|
|
976
|
1
|
174867
|
sub agent { $_[0]->{agent}; }; |
271
|
|
|
|
|
|
|
|
272
|
|
|
|
|
|
|
sub option { |
273
|
670
|
|
|
670
|
0
|
13624
|
my ($self,$option,$value) = @_; |
274
|
670
|
100
|
|
|
|
3184
|
if (exists $self->{options}->{$option}) { |
275
|
667
|
|
|
|
|
1724
|
my $result = $self->{options}->{$option}; |
276
|
667
|
100
|
|
|
|
2084
|
if (scalar @_ == 3) { |
277
|
73
|
|
|
|
|
196
|
$self->{options}->{$option} = $value; |
278
|
|
|
|
|
|
|
}; |
279
|
667
|
|
|
|
|
3991
|
$result; |
280
|
|
|
|
|
|
|
} else { |
281
|
3
|
|
|
|
|
21
|
Carp::carp "Unknown option '$option'"; |
282
|
3
|
|
|
|
|
16
|
undef; |
283
|
|
|
|
|
|
|
}; |
284
|
|
|
|
|
|
|
}; |
285
|
|
|
|
|
|
|
|
286
|
|
|
|
|
|
|
sub restart_shell { |
287
|
0
|
0
|
|
0
|
0
|
0
|
if ($0 ne '-e') { |
288
|
0
|
|
|
|
|
0
|
print "Restarting $0\n"; |
289
|
0
|
|
|
|
|
0
|
exec $^X, $0, @ARGV; |
290
|
|
|
|
|
|
|
}; |
291
|
|
|
|
|
|
|
}; |
292
|
|
|
|
|
|
|
|
293
|
|
|
|
|
|
|
sub precmd { |
294
|
338
|
|
|
338
|
0
|
1057098
|
my $self = shift @_; |
295
|
|
|
|
|
|
|
# We want to restart when any module was changed |
296
|
338
|
50
|
33
|
|
|
1561
|
if ($self->{files} and $self->{files}->changed()) { |
297
|
0
|
|
|
|
|
0
|
print "One or more of the base files were changed\n"; |
298
|
0
|
0
|
|
|
|
0
|
$self->restart_shell if ($self->option('autorestart')); |
299
|
|
|
|
|
|
|
}; |
300
|
|
|
|
|
|
|
|
301
|
338
|
|
|
|
|
1602
|
$self->SUPER::precmd(@_); |
302
|
|
|
|
|
|
|
}; |
303
|
|
|
|
|
|
|
|
304
|
|
|
|
|
|
|
sub browser { |
305
|
1
|
|
|
1
|
0
|
1140
|
my ($self) = @_; |
306
|
1
|
|
33
|
|
|
29
|
$self->{browser} ||= HTML::Display->new(); |
307
|
1
|
|
|
|
|
3492
|
$self->{browser}; |
308
|
|
|
|
|
|
|
}; |
309
|
|
|
|
|
|
|
|
310
|
|
|
|
|
|
|
sub sync_browser { |
311
|
2
|
|
|
2
|
0
|
6
|
my ($self) = @_; |
312
|
|
|
|
|
|
|
|
313
|
|
|
|
|
|
|
# We only can display html if we have any : |
314
|
2
|
50
|
|
|
|
7
|
return unless $self->agent->res; |
315
|
|
|
|
|
|
|
|
316
|
|
|
|
|
|
|
# Prepare the HTML for local display : |
317
|
0
|
|
|
|
|
0
|
my $unclean = $self->agent->content; |
318
|
0
|
|
|
|
|
0
|
my $html = ''; |
319
|
|
|
|
|
|
|
|
320
|
|
|
|
|
|
|
# ugly fix: |
321
|
|
|
|
|
|
|
# strip all target='_blank' attributes from the HTML: |
322
|
0
|
|
|
|
|
0
|
my $p = HTML::TokeParser::Simple->new(\$unclean); |
323
|
0
|
|
|
|
|
0
|
while (my $token = $p->get_token) { |
324
|
0
|
0
|
|
|
|
0
|
$token->delete_attr('target') |
325
|
|
|
|
|
|
|
if $token->is_start_tag; |
326
|
0
|
|
|
|
|
0
|
$html .= $token->as_is; |
327
|
|
|
|
|
|
|
}; |
328
|
|
|
|
|
|
|
|
329
|
0
|
|
|
|
|
0
|
my $location = $self->agent->{uri}; |
330
|
0
|
|
|
|
|
0
|
my $browser = $self->browser; |
331
|
0
|
|
|
|
|
0
|
$browser->display( html => $html, location => $location ); |
332
|
|
|
|
|
|
|
}; |
333
|
|
|
|
|
|
|
|
334
|
|
|
|
|
|
|
sub prompt_str { |
335
|
1
|
|
|
1
|
0
|
42
|
my $self = shift; |
336
|
1
|
50
|
|
|
|
5
|
if ($self->agent->response) { |
337
|
0
|
|
0
|
|
|
0
|
return ($self->agent->uri || "") . ">" |
338
|
|
|
|
|
|
|
} else { |
339
|
1
|
|
|
|
|
33
|
return "(no url)>" |
340
|
|
|
|
|
|
|
}; |
341
|
|
|
|
|
|
|
}; |
342
|
|
|
|
|
|
|
|
343
|
0
|
|
|
0
|
0
|
0
|
sub request_dumper { print $_[1]->as_string }; |
344
|
|
|
|
|
|
|
sub response_dumper { |
345
|
1
|
50
|
|
1
|
0
|
9
|
if (ref $_[1] eq 'ARRAY') { |
346
|
1
|
|
|
|
|
15
|
print $_[1]->[0]->as_string; |
347
|
|
|
|
|
|
|
} else { |
348
|
0
|
|
|
|
|
0
|
print $_[1]->as_string; |
349
|
|
|
|
|
|
|
} |
350
|
|
|
|
|
|
|
}; |
351
|
|
|
|
|
|
|
|
352
|
|
|
|
|
|
|
sub re_or_string { |
353
|
62
|
|
|
62
|
0
|
235
|
my ($self,$arg) = @_; |
354
|
62
|
100
|
|
|
|
554
|
if ($arg =~ m!^/(.*)/([imsx]*)$!) { |
355
|
11
|
|
|
|
|
137
|
my ($re,$mode) = ($1,$2); |
356
|
11
|
|
|
|
|
136
|
$re =~ s!([^\\])/!$1\\/!g; |
357
|
11
|
|
|
|
|
1384
|
$arg = eval "qr/$re/$mode"; |
358
|
|
|
|
|
|
|
}; |
359
|
62
|
|
|
|
|
213
|
$arg; |
360
|
|
|
|
|
|
|
}; |
361
|
|
|
|
|
|
|
|
362
|
|
|
|
|
|
|
=head2 C<< $shell->link_text LINK >> |
363
|
|
|
|
|
|
|
|
364
|
|
|
|
|
|
|
Returns a meaningful text from a WWW::Mechanize::Link object. This is (in order of |
365
|
|
|
|
|
|
|
precedence) : |
366
|
|
|
|
|
|
|
|
367
|
|
|
|
|
|
|
$link->text |
368
|
|
|
|
|
|
|
$link->name |
369
|
|
|
|
|
|
|
$link->url |
370
|
|
|
|
|
|
|
|
371
|
|
|
|
|
|
|
=cut |
372
|
|
|
|
|
|
|
|
373
|
|
|
|
|
|
|
sub link_text { |
374
|
2
|
|
|
2
|
1
|
6
|
my ($self,$link) = @_; |
375
|
2
|
|
|
|
|
3
|
my $result; |
376
|
2
|
|
|
|
|
5
|
for (qw( text name url )) { |
377
|
2
|
50
|
|
|
|
13
|
$result = $link->$_ and last; |
378
|
|
|
|
|
|
|
}; |
379
|
2
|
|
|
|
|
20
|
$result; |
380
|
|
|
|
|
|
|
}; |
381
|
|
|
|
|
|
|
|
382
|
|
|
|
|
|
|
=head2 C<$shell-Ehistory> |
383
|
|
|
|
|
|
|
|
384
|
|
|
|
|
|
|
Returns the (relevant) shell history, that is, all commands |
385
|
|
|
|
|
|
|
that were not solely for the information of the user. The |
386
|
|
|
|
|
|
|
lines are returned as a list. |
387
|
|
|
|
|
|
|
|
388
|
|
|
|
|
|
|
print join "\n", $shell->history; |
389
|
|
|
|
|
|
|
|
390
|
|
|
|
|
|
|
=cut |
391
|
|
|
|
|
|
|
|
392
|
|
|
|
|
|
|
sub history { |
393
|
3
|
|
|
3
|
1
|
35
|
my ($self) = @_; |
394
|
3
|
|
|
|
|
5
|
map { $_->[0] } @{$self->{history}} |
|
2
|
|
|
|
|
21
|
|
|
3
|
|
|
|
|
12
|
|
395
|
|
|
|
|
|
|
}; |
396
|
|
|
|
|
|
|
|
397
|
|
|
|
|
|
|
=head2 C<$shell-Escript> |
398
|
|
|
|
|
|
|
|
399
|
|
|
|
|
|
|
Returns the shell history as a Perl program. The |
400
|
|
|
|
|
|
|
lines are returned as a list. The lines do not have |
401
|
|
|
|
|
|
|
a one-by-one correspondence to the lines in the history. |
402
|
|
|
|
|
|
|
|
403
|
|
|
|
|
|
|
print join "\n", $shell->script; |
404
|
|
|
|
|
|
|
|
405
|
|
|
|
|
|
|
=cut |
406
|
|
|
|
|
|
|
|
407
|
|
|
|
|
|
|
sub script { |
408
|
48
|
|
|
48
|
1
|
44607933
|
my ($self,$prefix) = @_; |
409
|
48
|
|
100
|
|
|
1264
|
$prefix ||= ""; |
410
|
|
|
|
|
|
|
|
411
|
48
|
|
|
|
|
582
|
my @result = sprintf <<'HEADER', $^X; |
412
|
|
|
|
|
|
|
#!%s -w |
413
|
|
|
|
|
|
|
use strict; |
414
|
|
|
|
|
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|
use WWW::Mechanize; |
415
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use WWW::Mechanize::FormFiller; |
416
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use URI::URL; |
417
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418
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my $agent = WWW::Mechanize->new( autocheck => 1 ); |
419
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my $formfiller = WWW::Mechanize::FormFiller->new(); |
420
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$agent->env_proxy(); |
421
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HEADER |
422
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423
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48
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195
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push @result, map { my $x = $_->[1]; $x =~ s/^/$prefix/mg; $x } @{$self->{history}}; |
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247
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942
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247
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1763
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247
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933
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48
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408
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424
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48
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661
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@result; |
425
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}; |
426
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427
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=head2 C<$shell-Estatus> |
428
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429
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C is called for status updates. |
430
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431
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=cut |
432
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433
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sub status { |
434
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22
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22
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1
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127
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my $self = shift; |
435
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22
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224
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print join "", @_; |
436
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}; |
437
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438
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=head2 C<$shell-Edisplay FILENAME LINES> |
439
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440
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C is called to output listings, currently from the |
441
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C and C |