merge delete-mod.php and delete-modv.php; update index.php and script…

…s accordingly. also in /build highlight missing mod with red and suggest removal, fix bug where index.php/builds would show missing mods as 'forge'

functions/delete-mod.php

@@ -2,9 +2,12 @@
 header('Content-Type: application/json');
 session_start();
 
-if (empty($_GET['id'])) {
-    die("Id not specified.");
+if (empty($_GET['id']) && empty($_GET['name'])) {
+    die("Id/name not specified.");
 }
+// if (empty($_GET['force'])) { // assume false
+//     die("Force not specified.");
+// }
 if (!$_SESSION['user']||$_SESSION['user']=="") {
     die("Unauthorized request or login session has expired!");
 }
@@ -13,40 +16,88 @@
     exit();
 }
 
-global $db;
 require_once("db.php");
-if (!isset($db)){
-    $db=new Db;
-    $db->connect();
-}
-
+$db=new Db;
+$db->connect();
 
-$querybuilds = $db->query("SELECT id,name,mods FROM builds");
+if (!empty($_GET['name'])) {
+    // delete all ids associated with name, if not in a build
+    $modq = $db->query("
+        SELECT id,type,filename
+        FROM `mods` 
+        WHERE `name` = '".$db->sanitize($_GET['name'])."'"
+    );
+    foreach ($modq as $mod) {
+        if (!empty($_GET['force'])&&$_GET['force']=='true') {
+            error_log('force deleting mod name='.$_GET['name'].', id='.$mod['id']);
+        } else {
+            // check if a build has this id
+            $buildq = $db->query("
+                SELECT id,name 
+                FROM builds 
+                WHERE ',' || mods || ',' LIKE '%,' || ".$mod['id']." || ',%';
+            ");
+            if ($buildq && sizeof($buildq)>0) {
+                // mod is in a build
+                // only get first build
+                die('{"status":"warn","message":"Cannot delete mod as it is in use!","bid":"'.$buildq[0]['id'].'","bname":"'.$buildq[0]['name'].'"}');
+            }
+        } 
 
-$warn='';
+        // mod not in any build
+        $db->execute("DELETE FROM `mods` WHERE `id` = '".$mod['id']."'");
 
-//potentially destructive..
-$modq = $db->query("SELECT * FROM `mods` WHERE `name` = '".$db->sanitize($_GET['id'])."'");
-foreach ($modq as $mod) {
-    if ($querybuilds&&sizeof($querybuilds)>0) {
-        if (!empty($querybuilds[0]['mods'])) {
-            $mods=explode(',', $querybuilds[0]['mods']);
+        // check if theres any other mod entries with the same file
+        if ($mod['type']=='mod' && !(isset($_GET['force']) && $_GET['force']=='true')) {
+            $mod2q = $db->query("SELECT COUNT(*) as count FROM `mods` WHERE `filename` = '".$mod['filename']."'");
+            if ($mod2q && sizeof($mod2q)==1 && $mod2q[0]['count']>0) {
+                continue; // leave file on disk
+            }
+        } else {
+            unlink("../".$mod['type']."s/".$mod['filename']);
         }
     }
-    if (!empty($mods)&&in_array($mod['id'], $mods)) {
-        $warn.='Cannot delete version '.$mod['version'].' as it is used in build <a href=\'build?id='.$querybuilds[0]['id'].'\'>'.$querybuilds[0]['name'].'</a>';
-        error_log($warn);
-        continue;
+
+    die('{"status":"succ","message":"All versions of mod deleted."}');
+
+} elseif(!empty($_GET['id'])) {
+    if (isset($_GET['force']) && $_GET['force']=='true') {
+        error_log('force deleting mod id='.$_GET['id']);
     } else {
-        unlink("../".$mod['type']."s/".$mod['filename']);
-        $db->execute("DELETE FROM `mods` WHERE `id` = '".$mod['id']."'");
+        $querybuilds = $db->query("SELECT id,name,mods FROM builds");
+        foreach ($querybuilds as $build) {
+            if (empty($querybuilds[0]['mods'])) {
+                continue;
+            }
+            $build_mods = explode(',', $querybuilds[0]['mods']);
+            $build_id = !empty($querybuilds[0]['id']) ? $querybuilds[0]['id'] : null;
+            $build_name = !empty($querybuilds[0]['name']) ? $querybuilds[0]['name'] : null;
+            if (in_array($_GET['id'], $build_mods)) {
+                die('{"status":"error","message":"Cannot delete as it is in use!", "bid":"'.$build_id.'", "bname":"'.$build_name.'"}');
+            }
+        }
     }
-}
 
-// $db->execute("DELETE FROM `mods` WHERE `name` = '".$db->sanitize($_GET['id'])."'");
+    // get filename for mod id (and if it exists)
+    $modq = $db->query("SELECT type,filename FROM `mods` WHERE `id` = '".$db->sanitize($_GET['id'])."'");
+    if ($modq) {
+        if(sizeof($modq)==0) {
+            die('{"status":"error","message":"Specified id does not exist."}');
+        }
+        $mod = $modq[0];
+    }
 
-if ($warn!=='') {
-    die('{"status":"warn","message":"'.$warn.'"}');
+    // remove it from db
+    $db->execute("DELETE FROM `mods` WHERE `id` = '".$db->sanitize($_GET['id'])."'");
+
+    if ($mod['type']=='mod' && !(isset($_GET['force']) && $_GET['force']=='true')) {
+        // check if theres any other mod entries with the same file
+        $mod2q = $db->query("SELECT COUNT(*) as count FROM `mods` WHERE `filename` = '".$mod['filename']."'");
+        if ($mod2q && sizeof($mod2q)==1 && $mod2q[0]['count']>0) {
+            die('{"status":"succ","message":"Mod version deleted from database, but file is still in use by other mod version."}'); // leave file on disk
+        }
+    } else {
+        unlink("../".$mod['type']."s/".$mod['filename']);
+        die('{"status":"succ","message":"Mod version deleted."}');
+    }
 }
-die('{"status":"succ","message":"Deleted successfully"}');
-exit();