1
Files
aleesa-telegram-bot/lib/imgur.pm

148 lines
3.9 KiB
Perl

package imgur;
use 5.018;
use strict;
use warnings;
use utf8;
use open qw (:std :utf8);
use English qw ( -no_match_vars );
use Carp qw (cluck);
use File::Path qw (make_path);
use Math::Random::Secure qw (irand);
use Mojo::UserAgent;
use SQLite_File;
use conf qw (loadConf);
use version; our $VERSION = qw (1.0);
use Exporter qw (import);
our @EXPORT_OK = qw (imgur);
my $c = loadConf ();
my $dir = $c->{image}->{dir};
my $imgur_client_id = $c->{image}->{imgur}->{client_id};
my $imgur_client_secret = $c->{image}->{imgur}->{client_secret};
my $imgur_access_token = $c->{image}->{imgur}->{access_token};;
my $imgur_refresh_token = $c->{image}->{imgur}->{refresh_token};
sub imgur {
my $tag = shift;
my $refresh_url = 'https://api.imgur.com/oauth2/token';
my $search_url = 'https://api.imgur.com/3/gallery/search/';
# load all tokens from api secrets db
my $backingfile = sprintf '%s/secrets.sqlite', $dir;
unless (-d $dir) {
make_path ($dir) or do {
cluck "Unable to create $dir: $OS_ERROR";
return undef;
};
}
tie my %secret, 'SQLite_File', $backingfile || do {
cluck "[ERROR] Unable to tie to $backingfile: $OS_ERROR";
return undef;
};
# if there is no access_token in db - put there one from config
if (defined $secret{imgur_access_token}) {
$imgur_access_token = $secret{imgur_access_token};
} else {
$secret{imgur_access_token} = $imgur_access_token;
}
# if there is no refresh_token in db - put there one from config
if (defined $secret{imgur_refresh_token}) {
$imgur_refresh_token = $secret{imgur_refresh_token};
} else {
$secret{imgur_refresh_token} = $imgur_refresh_token;
}
# query api
my $ua = Mojo::UserAgent->new->connect_timeout (3);
my $r = $ua->get ($search_url . $tag => {Authorization => "Bearer $imgur_access_token"})->result;
# looks like we need to refresh token
if (($r->code == 401) || ($r->code == 403)) {
$ua->post (
$refresh_url => form {
refresh_token => $imgur_refresh_token,
client_id => $imgur_client_id,
clinent_secret => $imgur_client_secret,
grant_type => 'refresh_token',
}
);
unless ($r->is_success) {
cluck "Unable to refresh imgur token, please re-authorise app! or imgur experiencing api outage: $r->code $r->message";
untie %secret;
return undef;
}
my $refresh = eval { return $r->json; };
if (defined $refresh) {
$imgur_refresh_token = $refresh->{refresh_token};
$secret{imgur_refresh_token} = $refresh->{refresh_token};
$imgur_access_token = $refresh->{access_token};
$secret{imgur_access_token} = $refresh->{access_token};
} else {
cluck "Unable to refresh imgur access_token, unable to decode json: $EVAL_ERROR";
untie %secret;
return undef;
}
# query api again
$r = $ua->get ($search_url . $tag => {Authorization => "Bearer $imgur_access_token"})->result;
}
untie %secret;
if ($r->is_success) {
my $searchResult = eval { return $r->json; };
my @urls;
if (defined $searchResult) {
if ($searchResult->{success}) {
foreach my $item (@{$searchResult->{data}}) {
foreach my $image (@{$item->{images}}) {
if (defined ($image->{animated}) && (0 + $image->{animated}) != 0) {
next;
}
if (($image->{type} eq 'image/jpeg') || ($image->{type} eq 'image/png')) {
if (defined ($image->{is_ad}) && (0 + $image->{is_ad}) !=0) {
next;
}
if (defined ($image->{nsfw}) && (0 + $image->{nsfw}) != 0) {
next;
}
push @urls, $image->{link};
}
}
}
if ($#urls > 0) {
return $urls[irand ($#urls + 1)];
} else {
cluck 'Imgur api returned empty result.';
return undef;
}
} else {
cluck "Unable to get results from imgur api: $r->message";
return undef;
}
} else {
cluck "Unable to decode imgur api json: $EVAL_ERROR";
return undef;
}
} else {
cluck "Unable to get results from imgur api: $r->code, $r->message";
return undef;
}
}
1;