84 lines
2.6 KiB
PHP
84 lines
2.6 KiB
PHP
<?php
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class ResolutionLimit extends Extension
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{
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public function get_priority(): int
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{
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return 40;
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} // early, to veto ImageUploadEvent
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public function onImageAddition(ImageAdditionEvent $event)
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{
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global $config;
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$min_w = $config->get_int("upload_min_width", -1);
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$min_h = $config->get_int("upload_min_height", -1);
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$max_w = $config->get_int("upload_max_width", -1);
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$max_h = $config->get_int("upload_max_height", -1);
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$ratios = explode(" ", $config->get_string("upload_ratios", ""));
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$image = $event->image;
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if ($min_w > 0 && $image->width < $min_w) {
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throw new UploadException("Image too small");
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}
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if ($min_h > 0 && $image->height < $min_h) {
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throw new UploadException("Image too small");
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}
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if ($max_w > 0 && $image->width > $max_w) {
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throw new UploadException("Image too large");
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}
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if ($max_h > 0 && $image->height > $max_h) {
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throw new UploadException("Image too large");
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}
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if (count($ratios) > 0) {
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$ok = false;
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$valids = 0;
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foreach ($ratios as $ratio) {
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$parts = explode(":", $ratio);
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if (count($parts) < 2) {
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continue;
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}
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$valids++;
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$width = $parts[0];
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$height = $parts[1];
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if ($image->width / $width == $image->height / $height) {
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$ok = true;
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break;
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}
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}
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if ($valids > 0 && !$ok) {
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throw new UploadException(
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"Image needs to be in one of these ratios: ".
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html_escape($config->get_string("upload_ratios", ""))
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);
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}
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}
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}
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public function onSetupBuilding(SetupBuildingEvent $event)
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{
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$sb = new SetupBlock("Resolution Limits");
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$sb->add_label("Min ");
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$sb->add_int_option("upload_min_width");
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$sb->add_label(" x ");
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$sb->add_int_option("upload_min_height");
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$sb->add_label(" px");
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$sb->add_label("<br>Max ");
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$sb->add_int_option("upload_max_width");
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$sb->add_label(" x ");
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$sb->add_int_option("upload_max_height");
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$sb->add_label(" px");
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$sb->add_label("<br>(-1 for no limit)");
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$sb->add_label("<br>Ratios ");
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$sb->add_text_option("upload_ratios");
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$sb->add_label("<br>(eg. '4:3 16:9', blank for no limit)");
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$event->panel->add_block($sb);
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}
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}
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