1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
# rddb.pm
#
# rhrdlibs
#
# Copyright (C) 2015-2016 Christian Pointner <equinox@helsinki.at>
#
# This file is part of rhrdlibs.
#
# rhrdlibs is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# any later version.
#
# rhrdlibs is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with rhrdlibs. If not, see <http://www.gnu.org/licenses/>.
#
package RHRD::utils;
use strict;
use POSIX;
use DateTime;
use DateTime::TimeZone;
use LWP::Simple;
use URI::Fetch;
use JSON;
sub get_rd_week
{
my ($time) = @_;
#
# This computes the current Rivendell Week based on the number
# of weeks since epoch.
#
# Explanation:
# epoch was at 01.01.1970 which was a Thursday.
# Monday in that week is (s-from-epoch + 3*24*60*60) seconds ago.
# This needs to be adjusted by the timezone offset for Europe/Vienna
# which is of course not constant (damn you daylight savings time)
# Divide this by (7*24*60*60) and you get the number of
# weeks since the Monday in the week of epoch adjusted for timezone offsets.
# This week had week number 3 so add an offset of 2 and
# get the modulo of 4. This rounded down gives you the current week
# with 0 meaning Week 1. So add 1 to that number and you will get
# the current RD week.
#
if(!defined($time)) {
$time = DateTime->now();
}
my $tz = DateTime::TimeZone->new(name => 'Europe/Vienna');
my $tz_offset = $tz->offset_for_datetime($time);
my $sEpoch = $time->epoch() + $tz_offset;
my $week = floor(((($sEpoch + 259200)/604800) + 2) % 4) + 1;
return $week;
}
use constant {
DB_PARAM_TYPE_HINT => "only S, M and J are allowed with S -> Show, M -> Musicpool, J -> Jingles",
DB_PARAM_RHYTHM_HINT => "only 0 or 1 are allowed, length must be exactly 4 and it must not be '0000'",
DB_PARAM_DOW_HINT => "must be between 1 and 7 (1=Monday, ..., 7=Sunday)",
DB_PARAM_STARTTIME_HINT => "must be in format HHMM (without seperator) in 24 hour format",
DB_PARAM_LEN_HINT => "must be a positive number below 1440",
};
sub dropbox_param_type_ok
{
my ($type) = @_;
unless(defined($type) && ($type == 'S' || $type == 'M' || $type == 'J')) {
return (0, "unkown type '" . (defined($type) ? $type : 'undef') . "'", DB_PARAM_TYPE_HINT);
}
return (1, 'OK', DB_PARAM_TYPE_HINT);
}
sub dropbox_param_rhythm_ok
{
my ($rhythm) = @_;
if(!defined($rhythm) || $rhythm !~ m/^[01]{4}$/ || $rhythm eq '0000') {
return (0, "rhythm '" . (defined($rhythm) ? $rhythm : 'undef') . "' contains illegal characters or is too long/short", DB_PARAM_RHYTHM_HINT);
}
return (1, 'OK', DB_PARAM_RHYTHM_HINT);
}
sub dropbox_param_dow_ok
{
my ($dow) = @_;
if(!defined($dow) || $dow < 1 || $dow > 7) {
return (0, "dow '" . (defined($dow) ? $dow : 'undef') . "' is out of bounds", DB_PARAM_DOW_HINT);
}
return (1, 'OK', DB_PARAM_DOW_HINT);
}
sub dropbox_param_starttime_ok
{
my ($starttime) = @_;
if(!defined($starttime) || $starttime !~ m/^[0-2][0-9][0-5][0-9]$/ || $starttime > 2359) {
return (0, "starttime '" . (defined($starttime) ? $starttime : 'undef') . "' is not a valid clock time", DB_PARAM_STARTTIME_HINT);
}
return (1, 'OK', DB_PARAM_STARTTIME_HINT);
}
sub dropbox_param_len_ok
{
my ($len) = @_;
if(!defined($len) || $len <= 0 || $len > 1440) {
return (0, "len '" . (defined($len) ? $len : 'undef') . "' is out of bounds", DB_PARAM_LEN_HINT);
}
return (1, 'OK', DB_PARAM_LEN_HINT);
}
sub fetch_parse_json
{
my ($url, $ua_str) = @_;
my $uri = URI->new($url);
$ua_str = "Radio Helsinki Rivendell Utilities" unless $ua_str;
my $ua = LWP::UserAgent->new;
$ua->agent($ua_str);
$ua->env_proxy;
my $res = URI::Fetch->fetch($uri, UserAgent => $ua)
or return (0, URI::Fetch->errstr);
if($res->status == URI::Fetch::URI_GONE()) {
return (0, "This resource has been permanently removed");
}
my $json = $res->content;
my $data;
eval {
$data = from_json($json);
1;
} or do {
return (0, "error parsing import result");
};
return (1, $data);
}
return 1;
|
