diff --git a/README.md b/README.md index 8310cf251f10fc2c74eb167915369ae85f602a89..c04d4f693a9a6c47464368a2e7c82f0f247054fe 100644 --- a/README.md +++ b/README.md @@ -206,9 +206,10 @@ sudo a2enmod rewrite sudo systemctl restart apache2 ``` -For the symbols cache to work we need to make sure the webserver has write access to our htdocs/public/symbols directory (the following permission may be a little bit too generous...) +For the symbols and heatmap caches to work we need to make sure the webserver has write access (the following permission may be a little bit too generous...) ``` chmod 777 ~/trackdirect/htdocs/public/symbols +chmod 777 ~/trackdirect/htdocs/public/heatmaps ``` If you have enabled a firewall, make sure port 80 is open. diff --git a/htdocs/public/heatmaps/heatmap.php b/htdocs/public/heatmaps/heatmap.php index 37db43d420c0c03fd0bed88f7824943ca4ccf1e7..7e7a5398fafd0fd2f8c58a62162a43bee1631825 100755 --- a/htdocs/public/heatmaps/heatmap.php +++ b/htdocs/public/heatmaps/heatmap.php @@ -77,7 +77,10 @@ $config = array( ); $heatmap = new gd_heatmap($data, $config); -//$heatmap->output(); -$heatmap->output($filename); -readfile($filename); +if (is_writable(dirname($filename))) { + $heatmap->output($filename); + readfile($filename); +} else { + $heatmap->output(); +}