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gforms-uploadrules.php
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<?php
class GFUploadRules {
protected static $version = '1.0.1';
public static function localize() {
$locale = apply_filters( 'plugin_locale', get_locale(), 'gforms_uprules' );
load_textdomain( 'gforms_uprules', WP_LANG_DIR . "/gforms_uprules/gforms_uprules-$locale.mo" );
load_plugin_textdomain( 'gforms_uprules', null, basename( plugin_dir_path( __FILE__ ) ) . 'lang' );
}
public static function register_scripts() {
wp_register_script('gform_uprules_plugin_form_editor', plugins_url('/js/form_editor.js', __FILE__), array('jquery'), self::$version, true );
}
public static function editor_js() {
if ( ! in_array( 'gform_uprules_plugin_form_editor', wp_print_scripts(array('gform_uprules_plugin_form_editor')) ) ) : ?>
<script type="text/javascript" id="gform_uprules_plugin_form_editor">
<?php include plugin_dir_path( __FILE__ ) . 'js/form_editor.js'; ?>
</script>
<?php
endif;
}
public static function dimension_field_label_minwidth() {
$locale = apply_filters( 'plugin_locale', get_locale(), 'gforms_uprules' );
$label_minwidth_by_locale = apply_filters( 'gforms_uprules_dimension_field_label_minwidth', array( 'en_US' => 50 ) );
if ( isset( $label_minwidth_by_locale[ $locale ] ) ) {
return $label_minwidth_by_locale[ $locale ];
}
//in case somebody has messed things up
return 50;
}
public static function field_settings( $position ) {
if ( 200 != $position ) {
return;
}
$label_minwidth = self::dimension_field_label_minwidth();
?>
<li class="uprules_filesize_setting field_setting">
<label for="field_uprules_filesize" class="section_label">
<?php _e("Filesize Limit", "gforms_uprules"); ?>
<?php gform_tooltip("form_field_uprules_filesize"); ?>
</label>
<input type="text" id="field_uprules_filesize" style="text-align: right;" onkeyup="SetFieldProperty('uprules_filesize_limit', this.value);" size="10" />
<select id="field_uprules_filesize_dim" style="margin: 0;" onchange="SetFieldProperty('uprules_filesize_dim', jQuery(this).val() );"><option value="kb">KB</option><option value="mb">MB</option></select>
</li>
<li class="uprules_dimensions_setting field_setting">
<label class="section_label">
<?php _e("Image dimensions", "gforms_uprules"); ?>
<select id="field_uprules_dims_ruletype" style="margin: 0;" onchange="SetFieldProperty('uprules_dims_ruletype', jQuery(this).val() );">
<option value="" style="text-align: center"><?php _e("– Select –", "gforms_uprules"); ?></option>
<option value="exact"><?php _e("Exact", "gforms_uprules"); ?></option>
<option value="conditional"><?php _e("Conditional", "gforms_uprules"); ?></option>
</select>
<?php gform_tooltip("form_field_uprules_dimensions"); ?>
</label>
<div class="uprules_dims_fields_exact" style="display: none;">
<div>
<label for="uprules_dims_exact_width" class="inline" style="min-width: <?php echo esc_attr( $label_minwidth ); ?>px; margin-right: 10px;">
<?php _e("Width", "gforms_uprules"); ?>
</label>
<input type="text" id="field_uprules_dims_exact_width" style="text-align: center;" onkeyup="SetFieldProperty('uprules_dims_exact_width', this.value);" size="6" />
</div>
<div>
<label for="uprules_dims_exact_height" class="inline" style="min-width: <?php echo esc_attr( $label_minwidth ); ?>px; margin-right: 10px;">
<?php _e("Height", "gforms_uprules"); ?>
</label>
<input type="text" id="field_uprules_dims_exact_height" style="text-align: center;" onkeyup="SetFieldProperty('uprules_dims_exact_height', this.value);" size="6" />
</div>
</div> <!--//-- .uprules_dims_fields_exact -->
<div class="uprules_dims_fields_conditional" style="display: none;">
<div class="uprules_dims_fields_conditional_min">
<label for="uprules_dims_minwidth" class="inline" style="min-width: <?php echo esc_attr( $label_minwidth ); ?>px; margin-right: 10px;">
<?php _e("Min", "gforms_uprules"); ?>
</label>
<input type="text" id="field_uprules_dims_minwidth" style="text-align: center;" onkeyup="SetFieldProperty('uprules_dims_minwidth', this.value);" size="6" placeholder="<?php esc_attr_e("Width", "gforms_uprules"); ?>" />
×
<input type="text" id="field_uprules_dims_minheight" style="text-align: center;" onkeyup="SetFieldProperty('uprules_dims_minheight', this.value);" size="6" placeholder="<?php esc_attr_e("Height", "gforms_uprules"); ?>" />
</div>
<div class="uprules_dims_fields_conditional_max">
<label for="uprules_dims_maxwidth" class="inline" style="min-width: <?php echo esc_attr( $label_minwidth ); ?>px; margin-right: 10px;">
<?php _e("Max", "gforms_uprules"); ?>
</label>
<input type="text" id="field_uprules_dims_maxwidth" style="text-align: center;" onkeyup="SetFieldProperty('uprules_dims_maxwidth', this.value);" size="6" placeholder="<?php esc_attr_e("Width", "gforms_uprules"); ?>" />
×
<input type="text" id="field_uprules_dims_maxheight" style="text-align: center;" onkeyup="SetFieldProperty('uprules_dims_maxheight', this.value);" size="6" placeholder="<?php esc_attr_e("Height", "gforms_uprules"); ?>" />
</div>
</div> <!--//-- .uprules_dims_fields_conditional -->
</li>
<?php
}
public static function field_validation( $valid, $value, $form, $field ) {
if ( ! empty( $_FILES ) && $valid['is_valid'] && in_array( RGFormsModel::get_input_type($field), array( 'fileupload', 'post_image' ) ) ) {
$form_id = $form['id'];
$input_name = 'input_' . $field['id'];
$fileinfo = RGFormsModel::get_temp_filename( $form_id, $input_name );
$temp_filepath = RGFormsModel::get_upload_path($form_id) . "/tmp/" . $fileinfo["temp_filename"];
if ( isset( $_FILES[$input_name] ) && !empty( $_FILES[$input_name] ) ) {
$bytes = $_FILES[$input_name]['size'];
$dims = @getimagesize( $_FILES[$input_name]['tmp_name'] );
}
elseif ( file_exists( $temp_filepath ) ) {
$bytes = filesize( $temp_filepath );
$dims = @getimagesize( $temp_filepath );
}
else {
return $valid;
}
//validate filesize
if ( isset( $field['uprules_filesize_limit'] ) ) {
$multipliers = array(
'kb' => 1024,
'mb' => 1024 * 1024
);
$max_filesize_user = intval( $field['uprules_filesize_limit'] );
$bytes_multiplier = $multipliers[$field['uprules_filesize_dim']];
$max_filesize_bytes = $max_filesize_user * $bytes_multiplier;
}
if ( isset( $bytes ) && isset( $max_filesize_bytes ) && $max_filesize_user > 0 && $max_filesize_bytes < $bytes ) {
$valid['is_valid'] = false;
$valid['message'] = sprintf( __( 'Max file upload size (%s) exceeded.', 'gravityforms' ), size_format( $max_filesize_bytes, 2 ) );
}
//validate image dimensions
if ( $valid['is_valid'] && is_array( $dims ) && isset( $field['uprules_dims_ruletype'] ) && in_array( $field['uprules_dims_ruletype'], array( 'exact', 'conditional' ) ) ) {
list( $up_width, $up_height ) = $dims;
$valid = self::validate_image_dimensions( $field, $up_width, $up_height );
}
if ( ! $valid['is_valid'] ) {
unset( RGFormsModel::$uploaded_files[$form_id][$input_name], $_FILES[$input_name] );
}
}
return $valid;
}
public static function is_valid_dim( $val ) {
return (bool)( trim($val) == absint( $val ) && $val > 0 );
}
public static function validate_image_dimensions( $field, $width, $height ) {
$valid = array( 'is_valid' => true, 'message' => '' );
switch ( $field['uprules_dims_ruletype'] ) {
case 'exact':
if (
isset( $field['uprules_dims_exact_width'] ) && self::is_valid_dim( $field['uprules_dims_exact_width'] ) && trim( $field['uprules_dims_exact_width'] ) != $width
|| isset( $field['uprules_dims_exact_height'] ) && self::is_valid_dim( $field['uprules_dims_exact_height'] ) && trim( $field['uprules_dims_exact_height'] ) != $height
)
$valid['is_valid'] = false;
$valid['message'] = sprintf( __("Only images with dimensions %d×%d allowed.", "gforms_uprules"), $field['uprules_dims_exact_width'], $field['uprules_dims_exact_height'] );
break;
case 'conditional':
$errors = "";
if ( isset( $field['uprules_dims_minwidth'] ) && self::is_valid_dim( $field['uprules_dims_minwidth'] ) && trim( $field['uprules_dims_minwidth'] ) > $width ) {
$valid['is_valid'] = false;
$errors .= '<br/>' . sprintf( __("Min width: <b>%dpx</b>", "gforms_uprules"), $field['uprules_dims_minwidth'] );
}
if ( isset( $field['uprules_dims_minheight'] ) && self::is_valid_dim( $field['uprules_dims_minheight'] ) && trim( $field['uprules_dims_minheight'] ) > $height ) {
$valid['is_valid'] = false;
$errors .= '<br/>' . sprintf( __("Min height: <b>%dpx</b>", "gforms_uprules"), $field['uprules_dims_minheight'] );
}
if ( isset( $field['uprules_dims_maxwidth'] ) && self::is_valid_dim( $field['uprules_dims_maxwidth'] ) && trim( $field['uprules_dims_maxwidth'] ) < $width ) {
$valid['is_valid'] = false;
$errors .= '<br/>' . sprintf( __("Max width: <b>%dpx</b>", "gforms_uprules"), $field['uprules_dims_maxwidth'] );
}
if ( isset( $field['uprules_dims_maxheight'] ) && self::is_valid_dim( $field['uprules_dims_maxheight'] ) && trim( $field['uprules_dims_maxheight'] ) < $height ) {
$valid['is_valid'] = false;
$errors .= '<br/>' . sprintf( __("Max height: <b>%dpx</b>", "gforms_uprules"), $field['uprules_dims_maxheight'] );
}
if ( ! $valid['is_valid'] && ! empty( $errors ) ) {
$valid['message'] = __("Image dimension didn't meet following size conditions:", "gforms_uprules") . $errors;
}
break;
}
return $valid;
}
public static function tooltips( $gf_tooltips ) {
$gf_uprules_tooltips = array(
'form_field_uprules_filesize' => "<h6>" . __("Filesize Limit", "gforms_uprules") . "</h6>" . __("Enter filesize limit for uploaded file. Exceeding uploads will be rejected with an error.", "gforms_uprules"),
'form_field_uprules_dimensions' => "<h6>" . __("Image dimensions", "gforms_uprules") . "</h6>" . __("Set validation conditions for uploaded image. Choose between <i>Exact</i> or <i>Conditional</i> validation methods. Empty fields will be not checked against. All values are in <b>pixels</b>. Non-matching images will be rejected with an error.", "gforms_uprules")
);
return array_merge( $gf_uprules_tooltips, $gf_tooltips );
}
public static function actions() {
add_filter( 'gform_field_validation', array( __CLASS__, 'field_validation' ), 10, 4 );
add_action( 'gform_field_advanced_settings', array( __CLASS__, 'field_settings' ), 5 );
add_action( 'gform_editor_js', array( __CLASS__, 'editor_js' ), 20 );
add_filter( 'gform_tooltips', array( __CLASS__, 'tooltips' ) );
add_action( 'admin_init', array( __CLASS__, 'register_scripts' ) );
add_action( 'init', array( __CLASS__, 'localize' ) );
}
}
GFUploadRules::actions();