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stmt |
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pod |
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code |
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=head1 NAME |
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3
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POE::Filter::FSSocket - a POE filter that parses FreeSWITCH events into hashes |
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5
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=head1 SYNOPSIS |
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#!/usr/bin/perl |
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use warnings; |
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use strict; |
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12
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use POE qw(Component::Client::TCP Filter::FSSocket); |
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use Data::Dumper; |
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POE::Component::Client::TCP->new( |
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'RemoteAddress' => '127.0.0.1', |
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'RemotePort' => '8021', |
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'ServerInput' => \&handle_server_input, |
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'Filter' => 'POE::Filter::FSSocket', |
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); |
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POE::Kernel->run(); |
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exit; |
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my $auth_sent = 0; |
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my $password = "ClueCon"; |
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sub handle_server_input { |
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my ($heap,$input) = @_[HEAP,ARG0]; |
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31
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print Dumper $input; |
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33
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34
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if($input->{'Content-Type'} eq "auth/request") { |
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$auth_sent = 1; |
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$heap->{'server'}->put("auth $password"); |
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} elsif ($input->{'Content-Type'} eq "command/reply") { |
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if($auth_sent == 1) { |
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$auth_sent = -1; |
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41
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#do post auth stuff |
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$heap->{'server'}->put("events plain all"); |
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} |
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} |
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} |
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47
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=head1 DESCRIPTION |
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49
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POE::Filter::FSSocket parses output from FreeSWITCH into hashes. FreeSWITCH |
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events have a very wide range of keys, the only consistant one being |
51
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Content-Type. The keys are dependant on the type of events. You must use the |
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plain event type as that is what the filter knows how to parse. You can ask for |
53
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as many event types as you like or all for everything. You specify a list of |
54
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event types by putting spaces between them ex: "events plain api log talk" |
55
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56
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Currently known event types (Event-Name): |
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58
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CUSTOM |
59
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CHANNEL_CREATE |
60
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CHANNEL_DESTROY |
61
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CHANNEL_STATE |
62
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CHANNEL_ANSWER |
63
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CHANNEL_HANGUP |
64
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CHANNEL_EXECUTE |
65
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CHANNEL_BRIDGE |
66
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CHANNEL_UNBRIDGE |
67
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CHANNEL_PROGRESS |
68
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CHANNEL_OUTGOING |
69
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CHANNEL_PARK |
70
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CHANNEL_UNPARK |
71
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API |
72
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LOG |
73
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INBOUND_CHAN |
74
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OUTBOUND_CHAN |
75
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STARTUP |
76
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SHUTDOWN |
77
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PUBLISH |
78
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UNPUBLISH |
79
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TALK |
80
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NOTALK |
81
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SESSION_CRASH |
82
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MODULE_LOAD |
83
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DTMF |
84
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MESSAGE |
85
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CODEC |
86
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BACKGROUND_JOB |
87
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ALL |
88
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89
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Currently handled FreeSWITCH messages (Content-Type): |
90
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91
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auth/request |
92
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command/response |
93
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text/event-plain |
94
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api/response (data in __DATA__ variable) |
95
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log/data (data in __DATA__ variable) |
96
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97
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=cut |
98
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99
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100
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package POE::Filter::FSSocket; |
101
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102
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1
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1
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997
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use warnings; |
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1
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2
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1
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41
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103
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1
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1
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5
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use strict; |
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1
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2
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1
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35
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104
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105
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1
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1
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16
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use Carp qw(carp croak); |
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1
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1
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1
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64
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106
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1
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1
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5
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use vars qw($VERSION); |
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1
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2
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1
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57
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107
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1
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1
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5
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use base qw(POE::Filter); |
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1
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2
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1
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908
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108
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109
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$VERSION = '0.07'; |
110
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111
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1
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1
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1635
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use Data::Dumper; |
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1
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6494
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1
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1251
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112
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113
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#self array |
114
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sub FRAMING_BUFFER() {0} |
115
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sub PARSER_STATE() {1} |
116
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sub PARSER_STATENEXT() {2} |
117
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sub PARSED_RECORD() {3} |
118
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sub CURRENT_LENGTH() {4} |
119
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sub STRICT_PARSE() {5} |
120
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sub DEBUG_LEVEL() {6} |
121
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122
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#states of the parser |
123
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sub STATE_WAITING() {1} #looking for new input |
124
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sub STATE_CLEANUP() {2} #wipe out record separators |
125
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sub STATE_GETDATA() {3} #have header, get data |
126
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sub STATE_FLUSH() {4} #puts us back in wait state and tells us to kill the parsed_record |
127
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sub STATE_TEXTRESPONSE() {5} #used for api output |
128
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129
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sub new { |
130
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0
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0
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1
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my $class = shift; |
131
|
0
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my %args = @_; |
132
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|
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133
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0
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my $strict = 0; |
134
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0
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my $debug = 0; |
135
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136
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0
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0
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if(defined($args{'debug'})) { |
137
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0
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$debug = $args{'debug'}; |
138
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} |
139
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140
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0
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0
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0
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if(defined($args{'strict'}) && $args{'strict'} == 1) { |
141
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0
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$strict = $args{'strict'}; |
142
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} |
143
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144
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0
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0
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my $self = bless [ |
145
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"", #framing buffer |
146
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STATE_WAITING, #PARSER_STATE |
147
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undef, #PARSER_STATE |
148
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{}, #PARSED_RECORD |
149
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0, #length tracking (for Content-Length when needed) |
150
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$strict, #whether we should bail on a bad parse or try and save the session |
151
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$debug, #debug level |
152
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], ref($class) || $class; |
153
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154
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0
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return $self; |
155
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} |
156
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157
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158
|
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sub get_one_start { |
159
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0
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0
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1
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my ($self, $stream) = @_; |
160
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161
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#take all the chunks and put them in the buffer |
162
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0
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$self->[FRAMING_BUFFER] .= join('', @{$stream}); |
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0
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163
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} |
164
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165
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sub get_one { |
166
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0
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0
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1
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my $self = shift; |
167
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168
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0
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my $line; |
169
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170
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0
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while(1) { |
171
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0
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$line = ""; |
172
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173
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#see if we are in line based or length based mode |
174
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0
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0
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if($self->[PARSER_STATE] == STATE_TEXTRESPONSE) { |
175
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0
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my $length = $self->[PARSED_RECORD]{'Content-Length'}; |
176
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|
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177
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0
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0
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if($self->[FRAMING_BUFFER] =~ s/^(.{$length})//s) { |
178
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0
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$self->[PARSER_STATE] = STATE_FLUSH; |
179
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0
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|
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$self->[PARSED_RECORD]->{'__DATA__'} = $1; |
180
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0
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|
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|
return [ $self->[PARSED_RECORD] ]; |
181
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|
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} else { |
182
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|
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|
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#not engough in the buffer yet, come back later |
183
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0
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return; |
184
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|
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} |
185
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|
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} else { #we are in normal line based mode |
186
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0
|
0
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|
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|
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if($self->[FRAMING_BUFFER] =~ s/^(.*?)(\x0D\x0A?|\x0A\x0D?)//) { |
187
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0
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$line = $1; |
188
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|
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|
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} else { |
189
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|
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|
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#not enough off of the socket yet, come back later |
190
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0
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|
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return []; |
191
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|
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|
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} |
192
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|
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|
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} |
193
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|
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|
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|
194
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0
|
0
|
0
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|
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if(($self->[PARSER_STATE] == STATE_WAITING) || ($self->[PARSER_STATE] == STATE_FLUSH)) { |
|
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0
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0
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|
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|
195
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|
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#see if we need to wipe out the parsed_record info |
196
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0
|
0
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|
|
|
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if($self->[PARSER_STATE] == STATE_FLUSH) { |
197
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0
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|
|
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|
delete $self->[PARSED_RECORD]; |
198
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0
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|
|
|
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|
$self->[CURRENT_LENGTH] = 0; |
199
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|
|
|
|
|
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|
200
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0
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|
|
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$self->[PARSER_STATE] = STATE_WAITING; |
201
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|
|
|
|
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} |
202
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|
|
|
|
|
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|
203
|
0
|
0
|
|
|
|
|
if($line =~ /Content-Length:\ (\d+)$/) { |
|
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0
|
|
|
|
|
|
204
|
|
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|
|
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|
#store the length |
205
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0
|
|
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|
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|
$self->[PARSED_RECORD]{'Content-Length'} = $1; |
206
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|
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|
|
|
|
|
207
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|
|
|
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|
#see if we had a place to go from here (we should) |
208
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0
|
0
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|
|
|
|
if(defined($self->[PARSER_STATENEXT])) { |
209
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0
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|
|
|
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|
$self->[PARSER_STATE] = $self->[PARSER_STATENEXT]; |
210
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0
|
|
|
|
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|
$self->[PARSER_STATENEXT] = undef; |
211
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|
|
|
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} |
212
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|
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|
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} elsif($line =~ /Content-Type:\ (.*)$/) { |
213
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|
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|
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|
#store the type of request |
214
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0
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|
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|
$self->[PARSED_RECORD]{'Content-Type'} = $1; |
215
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|
|
|
|
|
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216
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0
|
0
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|
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|
|
if($1 eq "auth/request") { |
|
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0
|
|
|
|
|
|
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0
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|
|
|
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0
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0
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217
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0
|
|
|
|
|
|
$self->[PARSER_STATE] = STATE_CLEANUP; |
218
|
0
|
|
|
|
|
|
$self->[PARSER_STATENEXT] = STATE_FLUSH; |
219
|
0
|
|
|
|
|
|
return [ $self->[PARSED_RECORD] ]; |
220
|
|
|
|
|
|
|
} elsif ($1 eq "command/reply") { #do something with this later |
221
|
0
|
|
|
|
|
|
$self->[PARSER_STATE] = STATE_GETDATA; |
222
|
|
|
|
|
|
|
} elsif ($1 eq "text/event-plain") { |
223
|
0
|
|
|
|
|
|
$self->[PARSER_STATE] = STATE_CLEANUP; |
224
|
0
|
|
|
|
|
|
$self->[PARSER_STATENEXT] = STATE_GETDATA; |
225
|
|
|
|
|
|
|
} elsif ($1 eq "api/response") { |
226
|
0
|
|
|
|
|
|
$self->[PARSER_STATENEXT] = STATE_TEXTRESPONSE; |
227
|
|
|
|
|
|
|
} elsif ($1 eq "log/data") { |
228
|
0
|
|
|
|
|
|
$self->[PARSER_STATENEXT] = STATE_TEXTRESPONSE; |
229
|
|
|
|
|
|
|
} else { #unexpected input |
230
|
0
|
|
|
|
|
|
croak ref($self) . " unknown input [" . $self->[PARSER_STATE] . "] (" . $line . ")"; |
231
|
|
|
|
|
|
|
} |
232
|
|
|
|
|
|
|
} else { |
233
|
|
|
|
|
|
|
#already in wait state, if we are not in strict, keep going |
234
|
0
|
0
|
|
|
|
|
if($self->[STRICT_PARSE]) { |
235
|
0
|
|
|
|
|
|
croak ref($self) . " unknown input [STATE_WAITING] (" . $line . ")"; |
236
|
|
|
|
|
|
|
} |
237
|
|
|
|
|
|
|
} |
238
|
|
|
|
|
|
|
} elsif ($self->[PARSER_STATE] == STATE_CLEANUP) { |
239
|
0
|
0
|
|
|
|
|
if($line eq "") { |
240
|
0
|
0
|
|
|
|
|
if(defined($self->[PARSER_STATENEXT])) { |
241
|
0
|
|
|
|
|
|
$self->[PARSER_STATE] = $self->[PARSER_STATENEXT]; |
242
|
0
|
|
|
|
|
|
$self->[PARSER_STATENEXT] = undef; |
243
|
|
|
|
|
|
|
} else { |
244
|
0
|
|
|
|
|
|
$self->[PARSER_STATE] = STATE_WAITING; |
245
|
|
|
|
|
|
|
} |
246
|
|
|
|
|
|
|
} else { |
247
|
|
|
|
|
|
|
#see if we should bail |
248
|
0
|
0
|
|
|
|
|
if($self->[STRICT_PARSE]) { |
249
|
0
|
|
|
|
|
|
croak ref($self) . " unknown input [STATE_CLEANUP] (" . $line . ")"; |
250
|
|
|
|
|
|
|
} else { |
251
|
|
|
|
|
|
|
#we are not supposed to bail so try and save our session... |
252
|
|
|
|
|
|
|
#since we are think we should be cleaning up, flush it all away |
253
|
0
|
|
|
|
|
|
$self->[PARSER_STATE] = STATE_FLUSH; |
254
|
|
|
|
|
|
|
|
255
|
|
|
|
|
|
|
#parser fail should be considered critical, if any debug at all, print dump |
256
|
0
|
0
|
|
|
|
|
if($self->[DEBUG_LEVEL]) { |
257
|
0
|
|
|
|
|
|
print STDERR "Parse failed on ($line) in STATE_CLEANUP:\n"; |
258
|
0
|
|
|
|
|
|
print STDERR Dumper $self->[PARSED_RECORD]; |
259
|
|
|
|
|
|
|
} |
260
|
|
|
|
|
|
|
} |
261
|
|
|
|
|
|
|
} |
262
|
|
|
|
|
|
|
} elsif ($self->[PARSER_STATE] == STATE_GETDATA) { |
263
|
0
|
0
|
|
|
|
|
if($line =~ /^([^:]+):\ (.*)$/) { |
|
|
0
|
|
|
|
|
|
264
|
0
|
|
|
|
|
|
$self->[PARSED_RECORD]{$1} = $2; |
265
|
|
|
|
|
|
|
} elsif ($line eq "") { #end of event |
266
|
0
|
|
|
|
|
|
$self->[PARSER_STATE] = STATE_FLUSH; |
267
|
|
|
|
|
|
|
|
268
|
0
|
|
|
|
|
|
return [ $self->[PARSED_RECORD] ]; |
269
|
|
|
|
|
|
|
} else { |
270
|
0
|
0
|
|
|
|
|
if($self->[STRICT_PARSE]) { |
271
|
0
|
|
|
|
|
|
croak ref($self) . " unknown input [STATE_GETDATA] (" . $line . ")"; |
272
|
|
|
|
|
|
|
} else { |
273
|
|
|
|
|
|
|
#flush and run |
274
|
0
|
|
|
|
|
|
$self->[PARSER_STATE] = STATE_FLUSH; |
275
|
|
|
|
|
|
|
|
276
|
|
|
|
|
|
|
#parser fail should be considered critical, if any debug at all, print dump |
277
|
0
|
0
|
|
|
|
|
if($self->[DEBUG_LEVEL]) { |
278
|
0
|
|
|
|
|
|
print STDERR "Parse failed on ($line) in STATE_GETDATA:\n"; |
279
|
0
|
|
|
|
|
|
print STDERR Dumper $self->[PARSED_RECORD]; |
280
|
|
|
|
|
|
|
} |
281
|
|
|
|
|
|
|
} |
282
|
|
|
|
|
|
|
} |
283
|
|
|
|
|
|
|
} |
284
|
|
|
|
|
|
|
} |
285
|
|
|
|
|
|
|
} |
286
|
|
|
|
|
|
|
|
287
|
|
|
|
|
|
|
sub put { |
288
|
0
|
|
|
0
|
1
|
|
my ($self, $lines) = @_; |
289
|
|
|
|
|
|
|
|
290
|
0
|
|
|
|
|
|
my @row; |
291
|
0
|
|
|
|
|
|
foreach my $line (@$lines) { |
292
|
0
|
|
|
|
|
|
push @row, $line . "\n\n"; |
293
|
|
|
|
|
|
|
} |
294
|
|
|
|
|
|
|
|
295
|
0
|
|
|
|
|
|
return \@row; |
296
|
|
|
|
|
|
|
|
297
|
|
|
|
|
|
|
} |
298
|
|
|
|
|
|
|
|
299
|
|
|
|
|
|
|
sub get_pending { |
300
|
0
|
|
|
0
|
1
|
|
my $self = shift; |
301
|
0
|
|
|
|
|
|
return $self->[FRAMING_BUFFER]; |
302
|
|
|
|
|
|
|
} |
303
|
|
|
|
|
|
|
|
304
|
|
|
|
|
|
|
sub get { |
305
|
0
|
|
|
0
|
1
|
|
my ($self, $stream) = @_; |
306
|
0
|
|
|
|
|
|
my @return; |
307
|
|
|
|
|
|
|
|
308
|
0
|
|
|
|
|
|
$self->get_one_start($stream); |
309
|
0
|
|
|
|
|
|
while(1) { |
310
|
0
|
|
|
|
|
|
my $next = $self->get_one(); |
311
|
0
|
0
|
|
|
|
|
last unless @$next; |
312
|
0
|
|
|
|
|
|
push @return, @$next; |
313
|
|
|
|
|
|
|
} |
314
|
|
|
|
|
|
|
|
315
|
0
|
|
|
|
|
|
return \@return; |
316
|
|
|
|
|
|
|
} |
317
|
|
|
|
|
|
|
|
318
|
|
|
|
|
|
|
1; |
319
|
|
|
|
|
|
|
|
320
|
|
|
|
|
|
|
=head1 SEE ALSO |
321
|
|
|
|
|
|
|
|
322
|
|
|
|
|
|
|
FreeSWITCH - http://www.freeswitch.org/ |
323
|
|
|
|
|
|
|
|
324
|
|
|
|
|
|
|
=head1 AUTHORS |
325
|
|
|
|
|
|
|
|
326
|
|
|
|
|
|
|
POE::Filter::FSSocket is written by Paul Tinsley. You can reach him by e-mail |
327
|
|
|
|
|
|
|
at pdt@jackhammer.org. |
328
|
|
|
|
|
|
|
|
329
|
|
|
|
|
|
|
=head1 COPYRIGHT |
330
|
|
|
|
|
|
|
|
331
|
|
|
|
|
|
|
Copyright 2006, Paul Tinsley. All rights are reserved. |
332
|
|
|
|
|
|
|
|
333
|
|
|
|
|
|
|
POE::Filter::FSSocket is free software; it is currently licensed under the MPL |
334
|
|
|
|
|
|
|
license version 1.1. |
335
|
|
|
|
|
|
|
|
336
|
|
|
|
|
|
|
=cut |