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@ -37,7 +37,6 @@
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* @return string Relative path or null if icon is absent.
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*/
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function room_icon(\CommunityRoom $room, string $size): ?string {
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global $ICON_ALLOWLIST;
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list($width, $height) = explode("x", $size);
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$width = intval($width);
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$height = intval($height);
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@ -48,13 +47,10 @@
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$room_id = $room->get_room_identifier();
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$icon_cached = room_icon_path($room_id);
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$icon_resized = room_icon_path_resized($room_id, $size);
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if (file_exists($icon_resized)) {
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if (empty(file_get_contents($icon_resized))) {
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return "";
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}
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return room_icon_path_relative($room_id, $size);
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}
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if (!file_exists($icon_cached)) {
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$icon_expired = file_exists($icon_cached) && filemtime($icon_cached) < strtotime("-1 hour");
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// Re-fetch icons periodically.
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if (!file_exists($icon_cached) || $icon_expired) {
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$icon_url = $room->get_icon_url();
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if (empty($icon_url)) {
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return null;
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@ -64,19 +60,26 @@
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if (empty($icon)) {
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log_info("$room_id returned empty icon.");
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}
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// Cache result, no matter if empty
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file_put_contents($icon_cached, $icon);
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// Never overwrite with an empty file.
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if (!(file_exists($icon_cached) && empty($icon))) {
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file_put_contents($icon_cached, $icon);
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}
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}
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$icon_cached_contents = file_get_contents($icon_cached);
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if (empty($icon_cached_contents)) {
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file_put_contents($icon_resized, "");
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return "";
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if (!file_exists($icon_resized) || $icon_expired) {
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$icon_cached_contents = file_get_contents($icon_cached);
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if (empty($icon_cached_contents)) {
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file_put_contents($icon_resized, "");
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return "";
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}
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// Resize image
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$gd_image = imagecreatefromstring($icon_cached_contents);
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$gd_resized = imagescale($gd_image, $width, $height);
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if (!imagewebp($gd_resized, $icon_resized)) {
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log_info("Converting image for $room_id to $size failed");
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}
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}
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// Resize image
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$gd_image = imagecreatefromstring($icon_cached_contents);
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$gd_resized = imagescale($gd_image, $width, $height);
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if (!imagewebp($gd_resized, $icon_resized)) {
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log_info("Converting image for $room_id to $size failed");
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if (filesize($icon_resized) == 0) {
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return "";
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}
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return room_icon_path_relative($room_id, $size);
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}
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