fix installation error on wrong credentials (#1175 and #1114)

diff --git a/install/index.php b/install/index.php
index fc16af0c7778d35fcf5ab8dd1250530ed7ccef7a..77e50864015b4bbb7b0092eebd7ae013ab1f073b 100755 (executable)
--- a/install/index.php
+++ b/install/index.php
@@ -144,16 +144,43 @@ else if (isset($_POST['install'])) {
                 $sql_structure = file_get_contents('install/postgres.sql');
             }
             // create database structure
-            $query = $handle->exec($sql_structure);
-
-            $usertest = executeQuery($handle,"SELECT * from users WHERE username = ?", array($username));
-            if (!empty($usertest)) {
-                $continue = false;
-                $errors[] = "An user already exists with this username in database.";
-            }
+            if (!$handle) {
+               $continue = false;
+                $errors[] = "Couldn't connect to your database server. Please check credentials.";
+            } else {
+                   $query = $handle->exec($sql_structure);
+
+                   $usertest = executeQuery($handle,"SELECT * from users WHERE username = ?", array($username));
+                   if (!empty($usertest)) {
+                       $continue = false;
+                       $errors[] = "An user already exists with this username in database.";
+                   }
+        }
 
         } catch (PDOException $e) {
-            $errors[] = $e->getMessage();
+               /* Error codes :
+               /       7 : PostgreSQL issues
+               /       1045 : Access denied to the user : user doesn't exists                     
+               /       1044 : Access denied to the user : user doesn't have the rights to connect to this database
+               /       2005 : Unknown database server
+                       */
+               switch ($e->getCode()) {
+                       case 7:
+                               $errors[] = "PostgreSQL has encountered an issue : " . $e->getMessage();
+                               break;
+                       case 1045:
+                               $errors[] = "The password for this user is incorrect, or this user doesn't exist.";
+                               break;
+                       case 1044:
+                               $errors[] = "The user isn't allowed to use this database.";
+                               break;
+                       case 2005:
+                               $errors[] = "The server can't be reached.";
+                               break;
+                       default:
+                               $errors[] = "A error happened while connecting to your database : " . $e->getMessage();
+                               break;
+               }
             $continue = false;
         }
         }