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January 17, 2012 16:49
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AnyEvent::Twitter::Stream改変
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package AnyEvent::Twitter::Stream; | |
use strict; | |
use 5.008_001; | |
our $VERSION = '0.21'; | |
use Data::Dumper; | |
use AnyEvent; | |
use AnyEvent::HTTP; | |
use AnyEvent::Util; | |
use MIME::Base64; | |
use URI; | |
use URI::Escape; | |
use Carp; | |
our $STREAMING_SERVER = 'stream.twitter.com'; | |
our $USERSTREAM_SERVER = 'userstream.twitter.com'; | |
our $PROTOCOL = $ENV{'ANYEVENT_TWITTER_STREAM_SSL'} ? 'https' : 'http'; | |
our $US_PROTOCOL = 'https'; # for testing | |
my %methods = ( | |
firehose => [], | |
links => [], | |
retweet => [], | |
sample => [], | |
userstream => [ qw(replies) ], | |
filter => [ qw(track follow locations) ], | |
); | |
sub new { | |
my $class = shift; | |
my %args = @_; | |
my $username = delete $args{username}; | |
my $password = delete $args{password}; | |
my $consumer_key = delete $args{consumer_key}; | |
my $consumer_secret = delete $args{consumer_secret}; | |
my $token = delete $args{token}; | |
my $token_secret = delete $args{token_secret}; | |
my $method = delete $args{method}; | |
my $on_connect = delete $args{on_connect} || sub { }; | |
my $on_tweet = delete $args{on_tweet}; | |
my $on_error = delete $args{on_error} || sub { die @_ }; | |
my $on_eof = delete $args{on_eof} || sub { }; | |
my $on_keepalive = delete $args{on_keepalive} || sub { }; | |
my $on_delete = delete $args{on_delete}; | |
my $on_friends = delete $args{on_friends}; | |
my $on_event = delete $args{on_event}; | |
# add | |
my $on_dm = delete $args{on_dm}; | |
my $timeout = delete $args{timeout}; | |
my $decode_json; | |
unless (delete $args{no_decode_json}) { | |
require JSON; | |
$decode_json = 1; | |
} | |
unless ($methods{$method}) { | |
$on_error->("Method $method not available."); | |
return; | |
} | |
my %post_args; | |
for my $param ( @{ $methods{$method} } ) { | |
next if $method eq 'userstream' && $param eq 'replies'; | |
if ( exists $args{$param} ) { | |
$post_args{$param} = delete $args{$param}; | |
} | |
} | |
my $uri; | |
if ($method eq 'userstream') { | |
$uri = URI->new("$US_PROTOCOL://$USERSTREAM_SERVER/2/user.json"); | |
}else{ | |
$uri = URI->new("$PROTOCOL://$STREAMING_SERVER/1/statuses/$method.json"); | |
} | |
$uri->query_form(%args); | |
my $request_method = 'GET'; | |
my $request_body; | |
if ($method eq 'filter' || $method eq 'userstream') { | |
$request_method = 'POST'; | |
$request_body = join '&', map "$_=" . URI::Escape::uri_escape($post_args{$_}), keys %post_args; | |
} | |
my $auth; | |
if ($consumer_key) { | |
eval {require Net::OAuth;}; | |
die $@ if $@; | |
my $request = Net::OAuth->request('protected resource')->new( | |
version => '1.0', | |
consumer_key => $consumer_key, | |
consumer_secret => $consumer_secret, | |
token => $token, | |
token_secret => $token_secret, | |
request_method => $request_method, | |
signature_method => 'HMAC-SHA1', | |
timestamp => time, | |
nonce => MIME::Base64::encode( time . $$ . rand ), | |
request_url => $uri, | |
extra_params => \%post_args, | |
); | |
$request->sign; | |
$auth = $request->to_authorization_header; | |
}else{ | |
$auth = "Basic ".MIME::Base64::encode("$username:$password", ''); | |
} | |
my $self = bless {}, $class; | |
{ | |
Scalar::Util::weaken(my $self = $self); | |
my $set_timeout = $timeout | |
? sub { $self->{timeout} = AE::timer($timeout, 0, sub { $on_error->('timeout') }) } | |
: sub {}; | |
my $on_json_message = sub { | |
my ($json) = @_; | |
# Twitter stream returns "\x0a\x0d\x0a" if there's no matched tweets in ~30s. | |
$set_timeout->(); | |
if ($json !~ /^\s*$/) { | |
my $tweet = $decode_json ? JSON::decode_json($json) : $json; | |
if ($on_delete && $tweet->{delete} && $tweet->{delete}->{status}) { | |
$on_delete->($tweet->{delete}->{status}->{id}, $tweet->{delete}->{status}->{user_id}); | |
}elsif($on_friends && $tweet->{friends}) { | |
$on_friends->($tweet->{friends}); | |
}elsif($on_event && $tweet->{event}) { | |
$on_event->($tweet); | |
# add | |
}elsif($on_dm && $tweet->{direct_message}) { | |
$on_dm->($tweet->{direct_message}); | |
} | |
else{ | |
$on_tweet->($tweet); | |
} | |
} | |
else { | |
$on_keepalive->(); | |
} | |
}; | |
$set_timeout->(); | |
$self->{connection_guard} = http_request($request_method, $uri, | |
headers => { | |
Accept => '*/*', | |
Authorization => $auth, | |
($request_method eq 'POST' | |
? ('Content-Type' => 'application/x-www-form-urlencoded') | |
: () | |
), | |
}, | |
body => $request_body, | |
on_header => sub { | |
my($headers) = @_; | |
if ($headers->{Status} ne '200') { | |
$on_error->("$headers->{Status}: $headers->{Reason}"); | |
return; | |
} | |
return 1; | |
}, | |
want_body_handle => 1, # for some reason on_body => sub {} doesn't work :/ | |
sub { | |
my ($handle, $headers) = @_; | |
return unless $handle; | |
my $chunk_reader = sub { | |
my ($handle, $line) = @_; | |
$line =~ /^([0-9a-fA-F]+)/ or die 'bad chunk (incorrect length)'; | |
my $len = hex $1; | |
$handle->push_read(chunk => $len, sub { | |
my ($handle, $chunk) = @_; | |
$handle->push_read(line => sub { | |
length $_[1] and die 'bad chunk (missing last empty line)'; | |
}); | |
$on_json_message->($chunk); | |
}); | |
}; | |
my $line_reader = sub { | |
my ($handle, $line) = @_; | |
$on_json_message->($line); | |
}; | |
$handle->on_error(sub { | |
undef $handle; | |
$on_error->($_[2]); | |
}); | |
$handle->on_eof(sub { | |
undef $handle; | |
$on_eof->(@_); | |
}); | |
if (($headers->{'transfer-encoding'} || '') =~ /\bchunked\b/i) { | |
$handle->on_read(sub { | |
my ($handle) = @_; | |
$handle->push_read(line => $chunk_reader); | |
}); | |
} else { | |
$handle->on_read(sub { | |
my ($handle) = @_; | |
$handle->push_read(line => $line_reader); | |
}); | |
} | |
$self->{guard} = AnyEvent::Util::guard { | |
$handle->destroy if $handle; | |
}; | |
$on_connect->(); | |
} | |
); | |
} | |
return $self; | |
} | |
1; |
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