Line # Revision Author
1 332 ahitrov package tokbox::Keeper;
2
3 use strict;
4 use warnings 'all';
5 336 ahitrov use Time::HiRes qw( gettimeofday );
6 332 ahitrov use MIME::Base64;
7 336 ahitrov use Digest::SHA qw(hmac_sha1 hmac_sha1_hex);
8 332 ahitrov use LWP::UserAgent;
9 use URI;
10 use Data::Dumper;
11 use XML::Fast;
12
13 use base qw(Contenido::Keeper);
14
15 use Contenido::Globals;
16
17 336 ahitrov my $SUBSCRIBER = "subscriber";
18 my $PUBLISHER = "publisher";
19 my $MODERATOR = "moderator";
20 332 ahitrov
21 sub OpenTokSession {
22 my ($self, $sessionId, $properties) = @_;
23 return tokbox::Session->new( sessionId => $sessionId, properties => $properties );
24 }
25
26
27 ### - Generate a token
28 #
29 # session_id - If session_id is not blank, this token can only join the call with the specified session_id.
30 # role - One of the constants defined in RoleConstants. Default is publisher, look in the documentation to learn more about roles.
31 # expire_time - Optional timestamp to change when the token expires. See documentation on token for details.
32 # connection_data - Optional string data to pass into the stream. See documentation on token for details.
33 #
34 ##########################################################################################################
35 sub generateToken {
36 my ($self, %opts) = @_;
37
38 my $session_id = delete $opts{session_id} || '';
39 my $role = delete $opts{role} || '';
40 my $expire_time = delete $opts{expire_time};
41 my $connection_data = delete $opts{connection_data} || '';
42
43 my $create_time = time;
44 336 ahitrov my $nonce = rand();
45 332 ahitrov
46 if ( !$role ) {
47 $role = $PUBLISHER;
48 } elsif ( $role ne $SUBSCRIBER && $role ne $PUBLISHER && $role ne $MODERATOR ) {
49 warn "unknown role $role\n";
50 return;
51 }
52 336 ahitrov my $data_string = "role=$role&session_id=$session_id&create_time=$create_time&nonce=$nonce";
53 332 ahitrov if ( defined $expire_time ) {
54 if ( $expire_time =~ /\D/ ) {
55 warn "Expire time must be a number\n";
56 return;
57 } elsif ( $expire_time < $create_time ) {
58 warn "Expire time must be in the future\n";
59 return;
60 } elsif ( $expire_time > $create_time + 2592000 ) {
61 warn "Expire time must be in the next 30 days\n";
62 return;
63 }
64 $data_string .= "&expire_time=$expire_time";
65 }
66 if ( $connection_data ) {
67 if ( length $connection_data > 1000 ) {
68 warn "Connection data must be less than 1000 characters\n";
69 return;
70 }
71 336 ahitrov $data_string .= "&connection_data=" . Utils::HTML::url_escape( $connection_data );
72 } else {
73 $data_string .= "&connection_data=";
74 332 ahitrov }
75 336 ahitrov
76 332 ahitrov my $sig = $self->_sign_string($data_string, $self->state->{tokbox_secret});
77 my $api_key = $self->state->{tokbox_api_key};
78
79 336 ahitrov warn "AUTH: [partner_id=$api_key&sig=$sig:$data_string]\n" if $DEBUG;
80 return "T1==" . MIME::Base64::encode_base64("partner_id=$api_key&sig=$sig:$data_string", '');
81 332 ahitrov }
82
83
84 ###
85 #
86 # Creates a new session.
87 # location - IP address to geolocate the call around.
88 # properties - Optional array, keys are defined in SessionPropertyConstants
89 #
90 ###################################################################################
91 sub createSession {
92 my ($self, %opts) = @_;
93
94 my $location = delete $opts{location} || '';
95 my $properties = delete $opts{properties} || {};
96 $properties->{"location"} = $location;
97 $properties->{"api_key"} = $self->state->{tokbox_api_key};
98
99 my $createSessionResult = $self->_do_request("/session/create", $properties);
100 return unless $createSessionResult;
101 my $createSessionXML = xml2hash ($createSessionResult);
102 unless ( ref $createSessionXML ) {
103 warn "Failed to create session: Invalid response from server\n";
104 return;
105 }
106
107 unless( exists $createSessionXML->{sessions}{Session}{session_id} ) {
108 warn "Failed to create session.\n";
109 warn Dumper $createSessionXML;
110 return;
111 }
112 my $sessionId = $createSessionXML->{sessions}{Session}{session_id};
113
114 return $self->OpenTokSession( $sessionId );
115 }
116
117
118
119 ########################################################
120 # Inner functions
121 ########################################################
122 sub _sign_string {
123 my ($self, $string, $secret) = @_;
124 336 ahitrov return hmac_sha1_hex($string, $secret);
125 332 ahitrov }
126
127 sub _do_request {
128 my ($self, $url, $data, $auth) = @_;
129
130 $auth = {} unless ref $auth;
131 $auth->{'type'} = 'partner' unless exists $auth->{type};
132
133 $url = $self->state->{tokbox_server} . $url;
134
135 my %authHeader;
136 if ( $auth->{type} eq 'token' ) {
137 $authHeader{"X-TB-TOKEN-AUTH"} = $auth->{'token'};
138 } else {
139 $authHeader{"X-TB-PARTNER-AUTH"} = $self->state->{tokbox_api_key}.":".$self->state->{tokbox_secret};
140 }
141
142 my $req = URI->new( $url );
143 my $ua = LWP::UserAgent->new;
144 $ua->timeout(3);
145 $ua->default_header( 'Content-type' => 'application/x-www-form-urlencoded' );
146 $ua->default_header( %authHeader );
147 warn "Post: [$url] params:".Dumper($data) if $DEBUG;
148 my $res = $ua->post( $req, $data );
149 unless ($res->code == 200) {
150 warn "Request failed: ".$res->status_line;
151 return undef;
152 } else {
153 warn "Responce: ".Dumper($res) if $DEBUG;
154 }
155 return $res->content;
156 }
157
158
159 1;