coder_security.inc in Coder 6.2
Same filename and directory in other branches
This include file implements coder functionality for Drupal Standards.
@todo The rules for this review are not yet complete.
File
includes/coder_security.incView source
<?php
/**
* @file
* This include file implements coder functionality for Drupal Standards.
*
* @todo The rules for this review are not yet complete.
*/
/**
* Implementation of hook_reviews().
*/
function coder_security_reviews() {
$argex = '(((\\$?)[a-zA-Z_]+((\\([^)]*\\))|\\[[^\\]]*\\])?)|[0-9]+(\\.[0-9]*)?|\'\'|"")';
$allphp_argex = '(((\\$?)[a-zA-Z_]+((\\([^)]*\\))|\\[[^\\]]*\\])?)|[0-9]+(\\.[0-9]*)?|\'[^\']+\'|"[^"]+")';
$sanitize_argex = '((t|st|\\$t|check_plain|format_plural|check_markup|filter_xss|filter_xss_admin)\\s*\\([^\\)]+?\\))';
$table = '\\{[A-Za-z_]+\\}';
// table-regex
$rules = array(
array(
'#type' => 'regex',
'#value' => '[\\s\\(]trigger_error\\s*\\(\\s*[^\\$]+.+\\$',
'#never' => '(^function\\s|trigger_error\\s*\\(\\s*(((st|t|\\$t)\\s*\\()|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\().*$)',
'#source' => 'allphp',
'#warning_callback' => '_coder_security_trigger_error_filter_warning',
),
array(
'#type' => 'regex',
'#value' => '[\\s\\(]trigger_error\\s*\\(\\s*(st|t|\\$t)\\s*\\(\\s*((.*?\\$)|([\'"].*?!\\w+.*?[\'"]\\s*,)|(.*?array\\(.*?!\\w+.*?\\)))',
'#never' => '(^function\\s|trigger_error\\s*\\(\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\().*$)',
'#source' => 'allphp',
'#warning_callback' => '_coder_security_trigger_error_filter_t_warning',
),
array(
'#type' => 'regex',
'#value' => '[\\s\\(]drupal_set_title\\s*\\(\\s*[^\\$)]+.+\\$',
'#never' => '(^function\\s|drupal_set_title\\s*\\(\\s*(((st|t|\\$t)\\s*\\()|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\().*$)',
'#source' => 'allphp',
'#warning_callback' => '_coder_security_drupal_set_title_filter_warning',
),
array(
'#type' => 'regex',
'#value' => '[\\s\\(]drupal_set_title\\s*\\(\\s*(st|t|\\$t)\\s*\\(\\s*((.*?\\$)|([\'"].*?!\\w+.*?[\'"]\\s*,)|(.*?array\\(.*?!\\w+.*?\\)))',
'#never' => '(^function\\s|drupal_set_title\\s*\\(\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\().*$)',
'#source' => 'allphp',
'#warning_callback' => '_coder_security_drupal_set_title_filter_t_warning',
),
array(
'#type' => 'regex',
'#value' => '[\\s\\(]drupal_set_message\\s*\\(\\s*[^\\$)]+.+\\$',
'#never' => '(^function\\s|drupal_set_message\\s*\\(\\s*(((st|t|\\$t)\\s*\\()|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\().*$)',
'#source' => 'allphp',
'#warning_callback' => '_coder_security_drupal_set_message_filter_warning',
),
array(
'#type' => 'regex',
'#value' => '[\\s\\(]drupal_set_message\\s*\\(\\s*(st|t|\\$t)\\s*\\(\\s*((.*?\\$)|([\'"].*?!\\w+.*?[\'"]\\s*,)|(.*?array\\(.*?!\\w+.*?\\)))',
'#never' => '(^function\\s|drupal_set_message\\s*\\(\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\().*$)',
'#source' => 'allphp',
'#warning_callback' => '_coder_security_drupal_set_message_filter_t_warning',
),
array(
'#type' => 'regex',
'#value' => '[\\s\\(](form_set_error|form_error)\\s*\\(\\s*' . $argex . '\\s*,\\s*[^\\$)]+.+\\$',
'#never' => '(^function\\s|(form_set_error|form_error)\\s*\\(\\s*' . $argex . '\\s*,\\s*(((st|t|\\$t)\\s*\\()|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\().*$)',
'#source' => 'allphp',
'#warning_callback' => '_coder_security_form_set_error_filter_warning',
),
array(
'#type' => 'regex',
'#value' => '[\\s\\(](form_set_error|form_error)\\s*\\(\\s*' . $argex . '\\s*,\\s*(st|t|\\$t)\\s*\\(\\s*((.*?\\$)|([\'"].*?!\\w+.*?[\'"]\\s*,)|(.*?array\\(.*?!\\w+.*?\\)))',
'#never' => '(^function\\s|(form_set_error|form_error)\\s*\\(\\s*' . $argex . '\\s*,\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\().*$)',
'#source' => 'allphp',
'#warning_callback' => '_coder_security_form_set_error_filter_t_warning',
),
array(
'#type' => 'regex',
'#value' => '[\\s\\(]confirm_form\\s*\\(\\s*' . $argex . '\\s*,\\s*[^\\$\\s]+.+\\$[^,]+,\\s*' . $argex . '\\s*\\)',
'#never' => '(^function\\s|confirm_form\\s*\\(\\s*' . $argex . '\\s*,\\s*(((st|t|\\$t)\\s*\\()|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\().*$)',
'#source' => 'allphp',
'#warning_callback' => '_coder_security_confirm_form_filter_warning',
),
// confirm_form($form, t( ($taint | "abc $taint " | 'abcs '. $taint | stuff), array('!taint' => $taint)), $path);
array(
'#type' => 'regex',
'#value' => '[\\s\\(]confirm_form\\s*\\(\\s*' . $argex . '\\s*,\\s*(st|t|\\$t)\\s*\\(\\s*((\\$\\w+[,\\)])|("[^"]+?\\$\\w+.*?"\\s*[,\\)])|([\'"].*?[\'"]\\s*\\.\\s*\\$\\w)|([\'"].*?!\\w+.*?[\'"]\\s*,)|(.*?array\\(.*?!\\w+.*?\\)))',
'#never' => '(^function\\s|confirm_form\\s*\\(\\s*' . $argex . '\\s*,\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\().*$)',
'#source' => 'allphp',
'#warning_callback' => '_coder_security_confirm_form_filter_t_warning',
),
// confirm_form 4th, 5th and 6th args
array(
'#type' => 'regex',
'#value' => '[\\s\\(]confirm_form\\s*\\(\\s*((' . $allphp_argex . '|' . $sanitize_argex . ')\\s*,\\s*){3,5}([^\\$\\s]+.+\\$[^,\\)]+)(' . $allphp_argex . ')??\\)\\s*;',
'#never' => '(^function\\s|confirm_form\\s*\\(\\s*((' . $allphp_argex . '|' . $sanitize_argex . ')\\s*,\\s*){3,5}((st|t|\\$t|format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\([^\\)\\$]+\\)).*?(' . $allphp_argex . ')??\\)\\s*;)',
'#source' => 'allphp',
'#warning_callback' => '_coder_security_confirm_form_filter_warning',
),
// confirm_form($form, "safe string", $path, t( ($taint | "abc $taint " | 'abcs '. $taint | stuff), array('!taint' => $taint)), ...);
array(
'#type' => 'regex',
'#value' => '[\\s\\(]confirm_form\\s*\\(\\s*((' . $allphp_argex . '|' . $sanitize_argex . ')\\s*,\\s*){3,5}(st|t|\\$t)\\s*\\(\\s*((\\$\\w+[,\\)])|("[^"]+?\\$\\w+.*?"\\s*[,\\)])|([\'"].*?[\'"]\\s*\\.\\s*\\$\\w)|([\'"].*?!\\w+.*?[\'"]\\s*,)|(.*?array\\(.*?!\\w+.*?\\))).*?(' . $allphp_argex . ')??\\)\\s*;',
'#never' => '(^function\\s|confirm_form\\s*\\(\\s*((' . $allphp_argex . '|' . $sanitize_argex . ')\\s*,\\s*){3,5}(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\([^\\)\\$]+\\)).*?(' . $allphp_argex . ')??\\)\\s*;)',
'#source' => 'allphp',
'#warning_callback' => '_coder_security_confirm_form_filter_t_warning',
),
array(
'#type' => 'regex',
'#severity' => 'minor',
'#value' => '[\\s\\(]l\\(check_plain\\(.*',
'#never' => '[\'"]html[\'"]\\s*=>\\s*(TRUE|1)',
'#source' => 'allphp',
'#warning_callback' => '_coder_security_l_check_plain_warning',
),
array(
'#type' => 'regex',
'#value' => '(?-i)\\$REQUEST_URI',
'#warning_callback' => '_coder_security_request_uri_warning',
'#function-not' => '^(request_uri|drupal_detect_baseurl)$',
),
array(
'#type' => 'regex',
'#source' => 'allphp',
'#value' => '(?-i)\\"REQUEST_URI\\"|\'REQUEST_URI\'',
'#warning_callback' => '_coder_security_request_uri_warning',
'#function-not' => '^(request_uri|drupal_detect_baseurl)$',
),
array(
'#type' => 'regex',
'#value' => '^(select\\s+.*\\s+from\\s+' . $table . '|insert\\s+into\\s+' . $table . '|update\\s+' . $table . '\\s+set|delete\\s+from\\s+' . $table . ')\\s+.*\\$[a-z0-9_]+',
'#not' => '\\$placeholder',
'#never' => '[\\s\\(]update_sql\\(',
'#source' => 'quote',
'#warning_callback' => '_coder_security_sql_var_warning',
),
array(
'#type' => 'regex',
'#value' => '^(select\\s+.*\\s+from\\s+' . $table . '|insert\\s+into\\s+' . $table . '|update\\s+' . $table . '\\s+set|delete\\s+from\\s' . $table . ')\\s+[^\']*?(\\s+|\\(|=|,)\\%s',
'#source' => 'quote',
'#warning' => 'SQL query handling data in a potentially insecure way by using the %%s placeholder without wrapping it in single quotes. This is a potential source of SQL injection attacks when the value can come from user data.',
),
array(
'#type' => 'regex',
'#source' => 'allphp',
// allow us to look inside the regex string
'#value' => '\\bpreg_replace\\s*\\(\\s*(\'(.)([^\'\\\\]|\\\\.)*\\2([^\'\\\\]|\\\\.)*|"(.)([^"\\\\]|\\\\.)*\\5([^"\\\\]|\\\\.)*)e',
'#warning' => "Use preg_replace_callback() instead of the 'e' modifier to preg_replace()",
'#severity' => 'critical',
),
array(
'#type' => 'regex',
'#value' => '.*[\'"]SELECT\\s+.*\\s+(FROM|JOIN)\\s+\\{node\\}',
'#never' => '([\\s\\(]db_rewrite_sql\\s*\\(|\\s\\$\\w+\\s*=\\s*[\'"]SELECT|[\'"]SELECT\\s+COUNT\\(|[\\s\\.]nid\\s*=\\s*%d)',
'#source' => 'allphp',
'#warning_callback' => '_coder_security_db_rewrite_sql_warning',
'#function-not' => '_cron$',
),
array(
'#type' => 'regex',
'#value' => '[\\s\\(]db_rewrite_sql\\(\\s*[\'"]SELECT\\s+.*\\s+(FROM|JOIN)\\s+\\{node\\}([,\'"]+|\\s+(ON|WHERE|HAVING|LIMIT|ORDER|GROUP)\\s+)',
'#never' => '[\\s\\(]db_rewrite_sql\\(\\s*[\'"]SELECT\\s+(COUNT\\([^\\)]+\\))*.*\\s+(FROM|JOIN)\\s+\\{node\\}([,\'"]+|\\s+(ON|WHERE|HAVING|LIMIT|ORDER|GROUP)\\s+).*?,\\s*[\'"]\\{node\\}[\'"]',
'#source' => 'allphp',
'#warning_callback' => '_coder_security_db_rewrite_sql_warning',
'#function-not' => '_cron$',
),
array(
'#type' => 'regex',
'#value' => '[\'"]access callback.*=.*\\(',
'#source' => 'allphp',
'#warning_callback' => '_coder_security_menu_access_callback_warning',
'#function' => '_menu$',
),
array(
'#type' => 'regex',
'#severity' => 'minor',
'#value' => '\\$_(POST)\\[.+?\\]',
'#never' => '((((==|!=|>=|<=|>|<)\\s*|[!\\s\\(](form_get_cache|form_set_cache|format_plural|filter_xss|filter_xss_admin|check_plain|check_markup|isset|empty|foreach|while|if|elseif)\\s*\\(\\s*)\\$_(POST)\\[.+?\\])|\\$_(POST)\\[.+?\\]\\s*(\\.=|=|!=))',
'#source' => 'allphp',
'#warning_callback' => '_coder_security_post_get_request_filter_warning',
),
array(
'#type' => 'regex',
'#source' => 'html',
'#value' => '<form[\\s\'"]',
'#warning_callback' => '_coder_security_form_tag_warning',
),
array(
'#type' => 'regex',
'#value' => '[\\s\\(](drupal_)*?eval\\s*\\([^\\)]*?\\$',
'#never' => '(^function\\s)',
'#source' => 'php',
'#warning_callback' => '_coder_security_eval_warning',
),
array(
'#type' => 'regex',
'#value' => '[\\s\\[][\'"]subject[\'"](\\])*?\\s*=(>)*?\\s*\\$',
'#source' => 'allphp',
'#warning_callback' => '_coder_security_block_title_warning',
'#function' => '_block$',
),
array(
'#type' => 'callback',
'#value' => '_coder_security_callback',
),
);
$review = array(
'#title' => 'Drupal Security Checks',
'#link' => 'http://drupal.org/node/28984',
'#rules' => $rules,
'#severity' => 'critical',
'#description' => t('very basic, needs work, errs on the side of caution so may give false positives'),
);
return array(
'security' => $review,
);
}
/**
* Define the rule callbacks.
*/
function _coder_security_callback(&$coder_args, $review, $rule, $lines, &$results) {
$argex = '(((\\$?)[a-zA-Z_]+((\\([^)]*\\))|\\[[^\\]]*\\])?)|[0-9]+(\\.[0-9]*)?|\'\'|"")';
$allphp_argex = '(((\\$?)[a-zA-Z_]+((\\([^)]*\\))|\\[[^\\]]*\\])?)|[0-9]+(\\.[0-9]*)?|\'[^\']+\'|"[^"]+")';
$sanitize_argex = '((t|st|\\$t|check_plain|format_plural|check_markup|filter_xss|filter_xss_admin)\\s*\\([^\\)]+?\\))';
$severity_name = _coder_severity_name($coder_args, $review, $rule);
$ignores = $coder_args['#ignore_lines'];
$ignores = empty($ignores) || !isset($ignores[$review['#review_name']]) ? array() : $ignores[$review['#review_name']];
/*
if (!isset($coder_args['#tokens'])) {
$source = implode('', $lines);
$coder_args['#tokens'] = token_get_all($source);
}
*/
// Check for calls to trigger_error(), confirm_form(), drupal_set_title(),
// drupal_set_message(), form_error() and form_set_error() on $vars without a
// sanitizing function. If found, look back up within current function.
$this_function = '';
$function_paren = 0;
$forward_matches = array();
$function_name = '';
foreach ($coder_args['#all_lines'] as $lineno => $line) {
// Start of a function, store the line.
if (preg_match('/function (\\w+)\\(/', $line, $match)) {
$this_function = $line;
$function_name = $match[1];
}
elseif ($function_paren > 0) {
$this_function .= $line;
}
// Check to see if we're still in a function by counting number of {} chars.
$tmp_line = preg_replace(array(
'/([^\\\\])\'.+?[^\\\\]\'/',
'/([^\\\\])".+?[^\\\\]"/',
), '$1', $line);
if (preg_match('/([{}])/', $tmp_line, $match)) {
$function_paren += $match[0] == '{' ? 1 : -1;
// If we've just exited a function, run forward match checks.
if ($function_paren <= 0) {
// db_rewrite_sql()
if (isset($forward_matches['db_rewrite_sql'])) {
$after_never_regex = '/[\\s\\(]db_rewrite_sql\\s*\\(\\s*\\$' . $forward_matches['db_rewrite_sql'] . '[\\s,\\)]/';
if (!preg_match($after_never_regex, $this_function, $sanitized_matches)) {
$rule = _coder_security_db_rewrite_sql_warning();
_coder_error($results, $rule, $severity_name, $lineno, $line, $ignores);
}
}
// FAPI #value
if (isset($forward_matches['fapi_markup_value'])) {
$find_match = '/[\\s=]array\\s*\\(\\s*([^\\)]*?([\'"]#value[\'"]\\s*=>\\s*.*?\\$' . $forward_matches['fapi_markup_value'] . '.*?))\\);/';
if (preg_match($find_match, $this_function, $sanitized_matches)) {
if (!preg_match('/[\'"]#type[\'"]/', $sanitized_matches[1], $markup_matches) || preg_match('/[\'"]#type[\'"]\\s*=>\\s*[\'"]markup[\'"]/', $sanitized_matches[1], $markup_matches)) {
$rule = _coder_security_fapi_markup_value_warning();
_coder_error($results, $rule, $severity_name, $lineno, $line, $ignores);
}
}
}
$forward_matches = array();
$function_name = '';
}
}
// If we're not in a function, continue.
if ($function_paren < 0 || $this_function == '') {
continue;
}
// Run our multi-line reviews.
// trigger_error()
$regex = '/[\\s\\(]trigger_error\\s*\\(\\s*\\$(\\w+)\\s*[,\\)]/';
$never_regex = '/(^function\\s|trigger_error\\s*\\(\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\().*$)/';
if (preg_match($regex, $line, $matches)) {
if (!preg_match($never_regex, $coder_args['#all_lines'][$lineno])) {
$before_never_regex = '/[\\s]\\$' . $matches[1] . '\\s*=\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\()/';
if (!preg_match($before_never_regex, $this_function, $sanitized_matches)) {
$rule = _coder_security_trigger_error_filter_warning();
_coder_error($results, $rule, $severity_name, $lineno, $line, $ignores);
}
}
}
// drupal_set_title()
$regex = '/[\\s\\(]drupal_set_title\\s*\\(\\s*\\$(\\w+)\\s*[,\\)]/';
$never_regex = '/(^function\\s|drupal_set_title\\s*\\(\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\().*$)/';
if (preg_match($regex, $line, $matches)) {
if (!preg_match($never_regex, $coder_args['#all_lines'][$lineno])) {
$before_never_regex = '/[\\s]\\$' . $matches[1] . '\\s*=\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\()/';
if (!preg_match($before_never_regex, $this_function, $sanitized_matches)) {
$rule = _coder_security_drupal_set_title_filter_warning();
_coder_error($results, $rule, $severity_name, $lineno, $line, $ignores);
}
}
}
// drupal_set_message()
$regex = '/[\\s\\(]drupal_set_message\\s*\\(\\s*\\$(\\w+)\\s*[,\\)]/';
$never_regex = '/(^function\\s|drupal_set_message\\s*\\(\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\().*$)/';
if (preg_match($regex, $line, $matches)) {
if (!preg_match($never_regex, $coder_args['#all_lines'][$lineno])) {
$before_never_regex = '/[\\s]\\$' . $matches[1] . '\\s*=\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\()/';
if (!preg_match($before_never_regex, $this_function, $sanitized_matches)) {
$rule = _coder_security_drupal_set_message_filter_warning();
_coder_error($results, $rule, $severity_name, $lineno, $line, $ignores);
}
}
}
// form_set_error() and form_error()
$regex = '/[\\s\\(](form_set_error|form_error)\\s*\\(\\s*' . $argex . '\\s*,\\s*\\$(\\w+)\\s*[,\\)]/';
$never_regex = '/(^function\\s|(form_set_error|form_error)\\s*\\(\\s*' . $argex . '\\s*,\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\().*$)/';
if (preg_match($regex, $line, $matches)) {
if (!preg_match($never_regex, $coder_args['#all_lines'][$lineno])) {
$before_never_regex = '/[\\s]\\$' . $matches[8] . '\\s*=\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\()/';
if (!preg_match($before_never_regex, $this_function, $sanitized_matches)) {
$rule = _coder_security_form_set_error_filter_warning();
_coder_error($results, $rule, $severity_name, $lineno, $line, $ignores);
}
}
}
// confirm_form()
$regex = '/[\\s\\(]confirm_form\\s*\\(\\s*' . $argex . '\\s*,\\s*\\$(\\w+)\\s*[,\\)]/';
$never_regex = '/(^function\\s|confirm_form\\s*\\(\\s*' . $argex . '\\s*,\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\().*$)/';
if (preg_match($regex, $line, $matches)) {
if (!preg_match($never_regex, $coder_args['#all_lines'][$lineno])) {
$before_never_regex = '/[\\s]\\$' . $matches[7] . '\\s*=\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\()/';
if (!preg_match($before_never_regex, $this_function, $sanitized_matches)) {
$rule = _coder_security_confirm_form_filter_warning();
_coder_error($results, $rule, $severity_name, $lineno, $line, $ignores);
}
}
}
// confirm_form() - 4th, 5th and 6th args
$regex = '/[\\s\\(]confirm_form\\s*\\(\\s*((' . $allphp_argex . '|' . $sanitize_argex . ')\\s*,\\s*){3,5}\\$(\\w+)\\s*[,\\)]/';
$never_regex = '/(^function\\s|confirm_form\\s*\\(\\s*((' . $allphp_argex . '|' . $sanitize_argex . ')\\s*,\\s*){3,5}(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\().*$)/';
if (preg_match($regex, $line, $matches)) {
if (!preg_match($never_regex, $coder_args['#all_lines'][$lineno])) {
$before_never_regex = '/[\\s]\\$' . $matches[11] . '\\s*=\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\()/';
if (!preg_match($before_never_regex, $this_function, $sanitized_matches)) {
$rule = _coder_security_confirm_form_filter_warning();
_coder_error($results, $rule, $severity_name, $lineno, $line, $ignores);
}
}
}
// db_rewrite_sql()
$regex = '/\\$(\\w+)\\s*=\\s*[\'"]SELECT\\s+(.*)\\s+(FROM|JOIN)\\s+\\{node\\}(.*)?/';
if (preg_match($regex, $line, $matches) && !preg_match('/COUNT\\s*\\(/', $matches[2]) && !preg_match('/[\\s\\.]nid\\s*=\\s*%d/', $matches[4])) {
$forward_matches['db_rewrite_sql'] = $matches[1];
}
// FAPI #title and #description
$regex = '/[\'"]#(title|description)[\'"]\\s*=>\\s*.*?\\$(\\w+)\\s*.*?[,\\)]/';
$never_regex = '/([\'"]#(title|description)[\'"]\\s*=>\\s*((((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\().*))/';
if (preg_match($regex, $line, $matches) && preg_match('/_form(_alter)*$/', $function_name, $function_matches)) {
if (!preg_match($never_regex, $coder_args['#all_lines'][$lineno])) {
$before_never_regex = '/[\\s]\\$' . $matches[2] . '\\s*=\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\()/';
if (!preg_match($before_never_regex, $this_function, $sanitized_matches)) {
$rule = _coder_security_fapi_title_description_warning();
_coder_error($results, $rule, $severity_name, $lineno, $line, $ignores);
}
}
}
// FAPI #value
$regex = '/[\'"]#value[\'"]\\s*=>\\s*.*?\\$(\\w+)\\s*.*?[,\\)]/';
$never_regex = '/([\'"]#value[\'"]\\s*=>\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\().*)/';
if (preg_match($regex, $line, $matches) && preg_match('/_form(_alter)*$/', $function_name, $function_matches)) {
if (!preg_match($never_regex, $coder_args['#all_lines'][$lineno])) {
$before_never_regex = '/[\\s]\\$' . $matches[1] . '\\s*=\\s*(((st|t|\\$t)\\s*\\(((\\s*[\'"][^!]+?[\'"]\\s*,)|(.*?array\\([^!]+\\))))|(format_plural|filter_xss|filter_xss_admin|check_plain|check_markup)\\s*\\()/';
if (!preg_match($before_never_regex, $this_function, $sanitized_matches)) {
$forward_matches['fapi_markup_value'] = $matches[1];
}
}
}
}
}
/**
* Define the warning callbacks.
*/
function _coder_security_trigger_error_filter_warning() {
return array(
'#warning' => t('Potential problem: !trigger_error() only accepts filtered text, be sure to use !check_plain(), !filter_xss() or similar to ensure your $variable is fully sanitized.', array(
'!trigger_error' => theme('phpapi', 'trigger_error'),
'!check_plain' => theme('drupalapi', 'check_plain'),
'!filter_xss' => theme('drupalapi', 'filter_xss'),
)),
'#link' => 'http://drupal.org/node/28984',
);
}
function _coder_security_trigger_error_filter_t_warning() {
return array(
'#warning' => t('Potential problem: !trigger_error() only accepts filtered text, be sure all !placeholders for $variables in !t() are fully sanitized using !check_plain(), !filter_xss() or similar.', array(
'!trigger_error' => theme('phpapi', 'trigger_error'),
'!t' => theme('drupalapi', 't'),
'!check_plain' => theme('drupalapi', 'check_plain'),
'!filter_xss' => theme('drupalapi', 'filter_xss'),
)),
'#link' => 'http://drupal.org/node/28984',
);
}
function _coder_security_drupal_set_title_filter_warning() {
return array(
'#warning' => t('Potential problem: !drupal_set_title() only accepts filtered text, be sure to use !check_plain(), !filter_xss() or similar to ensure your $variable is fully sanitized.', array(
'!drupal_set_title' => theme('drupalapi', 'drupal_set_title'),
'!check_plain' => theme('drupalapi', 'check_plain'),
'!filter_xss' => theme('drupalapi', 'filter_xss'),
)),
'#link' => 'http://drupal.org/node/28984',
);
}
function _coder_security_drupal_set_title_filter_t_warning() {
return array(
'#warning' => t('Potential problem: !drupal_set_title() only accepts filtered text, be sure all !placeholders for $variables in !t() are fully sanitized using !check_plain(), !filter_xss() or similar.', array(
'!drupal_set_title' => theme('drupalapi', 'drupal_set_title'),
'!t' => theme('drupalapi', 't'),
'!check_plain' => theme('drupalapi', 'check_plain'),
'!filter_xss' => theme('drupalapi', 'filter_xss'),
)),
'#link' => 'http://drupal.org/node/28984',
);
}
function _coder_security_drupal_set_message_filter_warning() {
return array(
'#warning' => t('Potential problem: !drupal_set_message() only accepts filtered text, be sure to use !check_plain(), !filter_xss() or similar to ensure your $variable is fully sanitized.', array(
'!drupal_set_message' => theme('drupalapi', 'drupal_set_message'),
'!check_plain' => theme('drupalapi', 'check_plain'),
'!filter_xss' => theme('drupalapi', 'filter_xss'),
)),
'#link' => 'http://drupal.org/node/28984',
);
}
function _coder_security_drupal_set_message_filter_t_warning() {
return array(
'#warning' => t('Potential problem: !drupal_set_message() only accepts filtered text, be sure all !placeholders for $variables in !t() are fully sanitized using !check_plain(), !filter_xss() or similar.', array(
'!drupal_set_message' => theme('drupalapi', 'drupal_set_message'),
'!t' => theme('drupalapi', 't'),
'!check_plain' => theme('drupalapi', 'check_plain'),
'!filter_xss' => theme('drupalapi', 'filter_xss'),
)),
'#link' => 'http://drupal.org/node/28984',
);
}
function _coder_security_form_set_error_filter_warning() {
return array(
'#warning' => t('Potential problem: !form_set_error() and !form_error() only accept filtered text, be sure to use !check_plain(), !filter_xss() or similar to ensure your $variable is fully sanitized.', array(
'!form_set_error' => theme('drupalapi', 'form_set_error'),
'!form_error' => theme('drupalapi', 'form_error'),
'!check_plain' => theme('drupalapi', 'check_plain'),
'!filter_xss' => theme('drupalapi', 'filter_xss'),
)),
'#link' => 'http://drupal.org/node/28984',
);
}
function _coder_security_form_set_error_filter_t_warning() {
return array(
'#warning' => t('Potential problem: !form_set_error() and !form_error() only accept filtered text, be sure all !placeholders for $variables in !t() are fully sanitized using !check_plain(), !filter_xss() or similar.', array(
'!form_set_error' => theme('drupalapi', 'form_set_error'),
'!form_error' => theme('drupalapi', 'form_error'),
'!t' => theme('drupalapi', 't'),
'!check_plain' => theme('drupalapi', 'check_plain'),
'!filter_xss' => theme('drupalapi', 'filter_xss'),
)),
'#link' => 'http://drupal.org/node/28984',
);
}
function _coder_security_confirm_form_filter_warning() {
return array(
'#warning' => t('Potential problem: !confirm_form() only accepts filtered text, be sure to use !check_plain(), !filter_xss() or similar to ensure your $variable is fully sanitized.', array(
'!confirm_form' => theme('drupalapi', 'confirm_form'),
'!check_plain' => theme('drupalapi', 'check_plain'),
'!filter_xss' => theme('drupalapi', 'filter_xss'),
)),
'#link' => 'http://drupal.org/node/28984',
);
}
function _coder_security_confirm_form_filter_t_warning() {
return array(
'#warning' => t('Potential problem: !confirm_form() only accepts filtered text, be sure all !placeholders for $variables in !t() are fully sanitized using !check_plain(), !filter_xss() or similar.', array(
'!confirm_form' => theme('drupalapi', 'confirm_form'),
'!t' => theme('drupalapi', 't'),
'!check_plain' => theme('drupalapi', 'check_plain'),
'!filter_xss' => theme('drupalapi', 'filter_xss'),
)),
'#link' => 'http://drupal.org/node/28984',
);
}
function _coder_security_l_check_plain_warning() {
return array(
'#warning' => t('!l() already contains a !check_plain() call by default', array(
'!l' => theme('drupalapi', 'l'),
'!check_plain' => theme('drupalapi', 'check_plain'),
)),
);
}
function _coder_security_request_uri_warning() {
return array(
'#warning' => t('the use of REQUEST_URI is prone to XSS exploits and does not work on IIS; use !request_uri() instead', array(
'!request_uri' => theme('drupalapi', 'request_uri'),
)),
);
}
function _coder_security_sql_var_warning() {
return array(
'#warning' => t('In SQL strings, Use !db_query() placeholders in place of variables. This is a potential source of SQL injection attacks when the variable can come from user data.', array(
'!db_query' => theme('drupalapi', 'db_query'),
)),
'#link' => 'http://drupal.org/writing-secure-code',
'#description' => t('Use %s and %d variable substitution. When inserting an array of values use <code>$placeholders = implode(\',\', array_fill(0, count($args), "\'%s\'"));</code>'),
);
}
function _coder_security_db_rewrite_sql_warning() {
return array(
'#warning' => t('Potential problem: "SELECT FROM {node}" statements should probably be wrapped in !db_rewrite_sql() and with the alias for {node} table defined (e.g. {node} n)', array(
'!db_rewrite_sql' => theme('drupalapi', 'db_rewrite_sql'),
)),
);
}
function _coder_security_menu_access_callback_warning() {
return array(
'#warning' => t("The value for the 'access callback' must always be a string which is the the name of the function - never a function call. It may also be assigned the value TRUE or FALSE if the callback is always (or never) accessible."),
'#link' => 'http://drupal.org/node/109157',
);
}
function _coder_security_post_get_request_filter_warning() {
return array(
'#warning' => t('Potential problem: use the Form API to prevent against CSRF attacks. If you need to use $_POST variables, ensure they are fully sanitized if displayed by using !check_plain(), !filter_xss() or similar.', array(
'!check_plain' => theme('drupalapi', 'check_plain'),
'!filter_xss' => theme('drupalapi', 'filter_xss'),
)),
'#link' => 'http://drupal.org/node/178896',
);
}
function _coder_security_eval_warning() {
return array(
'#warning' => t("Using !eval() or !drupal_eval() in your module's code could have a security risk if the PHP input provided to the function contains malicious code.", array(
'!eval' => theme('phpapi', 'eval'),
'!drupal_eval' => theme('drupalapi', 'drupal_eval'),
)),
'#link' => url('http://drupal.org/node/715010'),
);
}
function _coder_security_form_tag_warning() {
return array(
'#warning' => t('Use the Form API to build forms to help prevent against CSRF attacks.'),
'#link' => 'http://drupal.org/node/178896',
);
}
function _coder_security_block_title_warning() {
return array(
'#warning' => t('Potential problem: !hook_block() only accepts filtered text as the block title, be sure to use !check_plain(), !filter_xss() or similar to ensure your $variable is fully sanitized.', array(
'!hook_block' => theme('drupalapi', 'hook_block'),
'!check_plain' => theme('drupalapi', 'check_plain'),
'!filter_xss' => theme('drupalapi', 'filter_xss'),
)),
'#link' => 'http://drupal.org/node/28984',
);
}
function _coder_security_fapi_title_description_warning() {
return array(
'#warning' => t("Potential problem: FAPI elements '#title' and '#description' only accept filtered text, be sure to use !check_plain(), !filter_xss() or similar to ensure your \$variable is fully sanitized.", array(
'!hook_form' => theme('drupalapi', 'hook_form'),
'!check_plain' => theme('drupalapi', 'check_plain'),
'!filter_xss' => theme('drupalapi', 'filter_xss'),
)),
'#link' => 'http://drupal.org/node/28984',
);
}
function _coder_security_fapi_markup_value_warning() {
return array(
'#warning' => t("Potential problem: when FAPI element '#type' is set to 'markup' (default), '#value' only accepts filtered text, be sure to use !check_plain(), !filter_xss() or similar to ensure your \$variable is fully sanitized.", array(
'!check_plain' => theme('drupalapi', 'check_plain'),
'!filter_xss' => theme('drupalapi', 'filter_xss'),
)),
'#link' => 'http://drupal.org/node/28984',
);
}