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[ticket/10057] Report postgres db connection errors.

Addresses two issues:

1. When pgsql extension is missing, @pg_connect would silently
abort execution. Check for pg_connect existence before calling it,
same with pg_pconnect.

2. When connection fails, the error reported by php is discarded.
User is shown the failure message without the reason for failure,
making debugging difficult. Collect the error (if any) via a
temporarily installed error handler, and display it if connection
failed.

PHPBB3-10057
This commit is contained in:
Oleg Pudeyev 2011-02-23 20:12:12 -05:00
parent f08cbc73de
commit d69a7c620a
2 changed files with 58 additions and 1 deletions

View File

@ -81,13 +81,25 @@ class dbal_postgres extends dbal
if ($this->persistency)
{
if (!function_exists('pg_pconnect'))
{
return $this->sql_error('pg_pconnect does not exist');
}
phpbb_start_error_collection();
$this->db_connect_id = (!$new_link) ? @pg_pconnect($connect_string) : @pg_pconnect($connect_string, PGSQL_CONNECT_FORCE_NEW);
}
else
{
if (!function_exists('pg_pconnect'))
{
return $this->sql_error('pg_connect does not exist');
}
phpbb_start_error_collection();
$this->db_connect_id = (!$new_link) ? @pg_connect($connect_string) : @pg_connect($connect_string, PGSQL_CONNECT_FORCE_NEW);
}
$errors = phpbb_stop_error_collection();
if ($this->db_connect_id)
{
if (version_compare($this->sql_server_info(true), '8.2', '>='))
@ -102,7 +114,8 @@ class dbal_postgres extends dbal
return $this->db_connect_id;
}
return $this->sql_error('');
$errors = phpbb_format_collected_errors($errors);
return $this->sql_error($errors);
}
/**

View File

@ -3928,6 +3928,50 @@ function msg_handler($errno, $msg_text, $errfile, $errline)
return false;
}
function phpbb_error_collection_handler($errno, $msg_text, $errfile, $errline)
{
global $phpbb_collected_errors;
$phpbb_collected_errors[-1][] = array($errno, $msg_text, $errfile, $errline);
}
function phpbb_start_error_collection()
{
global $phpbb_collected_errors;
if (!isset($phpbb_collected_errors))
{
$phpbb_collected_errors = array();
}
$phpbb_collected_errors[] = array();
set_error_handler('phpbb_error_collection_handler');
}
function phpbb_stop_error_collection()
{
global $phpbb_collected_errors;
restore_error_handler();
$errors = array_pop($phpbb_collected_errors);
return $errors;
}
function phpbb_format_collected_errors($errors)
{
$text = '';
foreach ($errors as $error)
{
if (!empty($text))
{
$text .= "<br />\n";
}
list($errno, $msg_text, $errfile, $errline) = $error;
$text .= "Errno $errno: $msg_text";
if (defined('DEBUG'))
{
$text .= " at $errfile line $errline";
}
}
return $text;
}
/**
* Queries the session table to get information about online guests
* @param int $item_id Limits the search to the item with this id