simple-slideshow/simpleslider-validate.php at master · dlanger/simple-slideshow · GitHub

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
<?php

function sss_settings_validate( $inp, $against_user_default = false ) {
	// Setting $against_user_default to true causes inputs to be validated
	// against the user-supplied defaults (from the admin menu), as opposed
	// to against the hard-coded ones. Used when validating shortcode args
	// (so an invalid arg would fall back to the user-supplied default, which
	// may not be the same as the hardcoded one). Safe because all user-
	// supplied defaults will have been validated against hard-coded ones
	// when they were saved in the first place.
	$fields = array_keys( sss_settings_defaults(NULL, true) );
	$user_default =  get_option( 'sss_settings' );
	$safe_inp = array();

	if( $against_user_default )
		foreach( $fields as $field )
			$safe_inp[ $field ] = call_user_func( 'sss_settings_' . $field .
				'_val', $inp[ $field ], $user_default[ $field ] );
	else
		foreach( $fields as $field )
			$safe_inp[ $field ] = call_user_func( 'sss_settings_' . $field .
				'_val', $inp[ $field ], false );
	return $safe_inp;
}

function sss_settings_defaults( $field, $return_all = false ){
	$defs = array('size' => 'medium',
					'transition_speed' => 400,
					'link_click' => 0,
					'link_target' => 'direct',
					'show_counter' => 1,
					'show_controls' => 1,
					'cycle_version' => 'lite',
					'transition' => 'fade',
					'auto_advance' => 0,
					'auto_advance_speed' => 5000
	);
	if( $return_all )
		return $defs;
	else
		return $defs[ $field ];
}

function sss_settings_transition_val( $inp, $user_default = false ){
	// $user_default has no meaning here, because this option can't
	// be set as a shortcode argument - option kept to match signatures.

	// Validity of transition depends on the value of cycle_type
	// (if cycle_type == 'lite', the only valid value for
	/// transition is 'fade'), so we look it up.
	$opts = get_option( 'sss_settings' );
	$cycle_type = sss_settings_defaults( 'cycle_type' );

	if( $opts and isset( $opts[ 'cycle_type' ] ) )
		$cycle_type = $opts[ 'cycle_type' ];

	if( 'lite' == $cycle_type )
		return 'fade';
	elseif( ctype_alpha( $inp ) )
		return $inp;
	else
		return sss_settings_defaults( 'transition' );
}

function sss_settings_size_val( $inp, $user_default = false ){
	return validate_in_list( $inp, 'size', get_intermediate_image_sizes(),
		$user_default );
}

function sss_settings_cycle_version_val( $inp, $user_default = false ){
	return validate_in_list( $inp, 'cycle_version', array( 'lite', 'all' ),
		$user_default );
}

function sss_settings_link_target_val( $inp, $user_default = false ){
	return validate_in_list( $inp, 'link_target',
		array( 'direct', 'attach' ), $user_default );
}

function sss_settings_transition_speed_val( $inp, $user_default = false ){
	return validate_range( $inp, 'transition_speed', 10, 1000,
		$user_default);
}

function sss_settings_auto_advance_speed_val( $inp, $user_default = false ){
	return validate_range( $inp, 'auto_advance_speed', 1000, 30000,
		$user_default);
}

function sss_settings_link_click_val( $inp, $user_default = false ){
	return validate_bool( $inp, 'link_click', $user_default );
}

function sss_settings_show_counter_val( $inp, $user_default = false ){
	return validate_bool( $inp, 'show_counter', $user_default );
}
function sss_settings_show_controls_val( $inp, $user_default = false ){
	return validate_bool( $inp, 'show_controls', $user_default );
}

function sss_settings_auto_advance_val( $inp, $user_default = false ){
	return validate_bool( $inp, 'auto_advance', $user_default );
}

function validate_bool( $inp, $field, $user_default ){
	if( false === $user_default )
		$default_value = sss_settings_defaults( $field );
	else
		$default_value = $user_default;

	$safe_inp = ( int ) $inp;
	if( ! ctype_digit( $inp ) or $safe_inp > 1 or $safe_inp < 0)
		return $default_value;
	else
		return $safe_inp;
}

function validate_in_list( $inp, $field, $options, $user_default ){
	if( false === $user_default )
		$default_value = sss_settings_defaults( $field );
	else
		$default_value = $user_default;

	if( in_array( $inp, $options, true ) )
		return $inp;
	else
		return $default_value;
}

function validate_range( $inp, $field, $minval, $maxval, $user_default ){
	if( false === $user_default )
		$default_value = sss_settings_defaults( $field );
	else
		$default_value = $user_default;

	$safe_inp = ( int ) $inp;
	if( ! ctype_digit( $inp ) or $safe_inp < $minval or $safe_inp > $maxval )
		return $default_value;
	else
		return $safe_inp;
}

?>