Improve theming flexibility

action.php

@@ -140,7 +140,9 @@ switch ($VARS['action']) {
             die(json_encode(["status" => "ERROR", "msg" => lang("invalid tileid", false)]));
         }
 
-        if ($database->get("publications", 'uid', ['pubid' => $VARS['pubid']]) != $_SESSION['uid']) {
+        $pubid = $database->get("tiles", "pubid", ['tileid' => $VARS['tileid']]);
+        
+        if ($database->get("publications", 'uid', ['pubid' => $pubid]) != $_SESSION['uid']) {
             die(json_encode(["status" => "ERROR", "msg" => lang("no permission", false)]));
         }
 

lib/gencontent.php

@@ -34,9 +34,24 @@ if (defined("EDIT_MODE") && EDIT_MODE == true) {
 }
 ?>
 <style nonce="<?php echo $SECURE_NONCE; ?>">
-<?php $pubcss = $database->get("pub_styles", "css", ["styleid" => $pubdata["styleid"]]); ?>
+<?php $pubcss = $database->get("pub_styles", ["css", "cssvars", "cssextra", "background"], ["styleid" => $pubdata["styleid"]]); ?>
     .pub-content {
-<?php echo $pubcss; ?>
+        <?php
+        $pubvars = json_decode($pubcss["cssvars"], TRUE);
+        foreach ($pubvars as $name => $val) {
+            echo "--$name: $val;\n";
+        }
+        ?>
+    }
+
+    .pub-content {
+<?php echo $pubcss["css"]; ?>
+    }
+    
+<?php echo $pubcss["cssextra"]; ?>
+    
+    .pub-content {
+        background-image: url('data:image/png;base64,<?php echo $pubcss["background"]; ?>');
     }
     
 <?php $pagesize = $database->get("page_sizes", ["sizewidth (width)", "sizeheight (height)"], ["sizeid" => $pubdata["page_size"]]); ?>
@@ -45,6 +60,13 @@ if (defined("EDIT_MODE") && EDIT_MODE == true) {
         height: <?php echo ($pubdata["landscape"] == 0 ? $pagesize["height"] : $pagesize["width"]); ?>;
     }
     
+    @media (max-width: 900px) {
+        .pub-content {
+            height: auto;
+            min-height: <?php echo ($pubdata["landscape"] == 0 ? $pagesize["height"] : $pagesize["width"]); ?>;
+        }
+    }
+    
     .page-safe-line .bottom {
         top: calc(<?php echo ($pubdata["landscape"] == 0 ? $pagesize["height"] : $pagesize["width"]); ?> - 5mm);
     }