Merge branch 'release/4.2.1'

Fixes #395

.gitattributes

@@ -12,6 +12,7 @@
 /utilities export-ignore
 /docker-compose.yml export-ignore
 /.github export-ignore
+/run_tests_for_all_php_versions.sh export-ignore
 /.gitattributes export-ignore
 /.gitignore export-ignore
 /make-release.sh export-ignore

.github/workflows/ci.yml

@@ -1,8 +1,10 @@
 # https://help.github.com/en/categories/automating-your-workflow-with-github-actions
 
 on:
-  - pull_request
-  - push
+  pull_request:
+  push:
+    branches:
+      - 'master'
 
 name: CI
 

CHANGELOG.md

@@ -6,8 +6,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [4.2.1] - 2022-09-14
+
+### Security
+- Applied appropriate javascript and html escaping in mailto plugin to counter injection attacks [#454](https://github.com/smarty-php/smarty/issues/454)
+
 ### Fixed
 - Fixed PHP8.1 deprecation errors in modifiers (upper, explode, number_format and replace) [#755](https://github.com/smarty-php/smarty/pull/755) and [#788](https://github.com/smarty-php/smarty/pull/788)
+- Fixed PHP8.1 deprecation errors in capitalize modifier [#789](https://github.com/smarty-php/smarty/issues/789)
+- Fixed use of `rand()` without a parameter in math function [#794](https://github.com/smarty-php/smarty/issues/794)
+- Fixed unselected year/month/day not working in html_select_date [#395](https://github.com/smarty-php/smarty/issues/395)
 
 ## [4.2.0] - 2022-08-01
 

docker-compose.yml

@@ -3,6 +3,7 @@ services:
   base:
     build:
       context: .
+      dockerfile: ./utilities/testrunners/php71/Dockerfile
     volumes:
       - .:/app
     working_dir: /app

libs/Smarty.class.php

@@ -98,7 +98,7 @@ class Smarty extends Smarty_Internal_TemplateBase
     /**
      * smarty version
      */
-    const SMARTY_VERSION = '4.2.0';
+    const SMARTY_VERSION = '4.2.1';
     /**
      * define variable scopes
      */

libs/plugins/function.html_select_date.php

@@ -101,6 +101,7 @@ function smarty_function_html_select_date($params, Smarty_Internal_Template $tem
     $field_separator = "\n";
     $option_separator = "\n";
     $time = null;
+
     // $all_empty = null;
     // $day_empty = null;
     // $month_empty = null;
@@ -113,17 +114,7 @@ function smarty_function_html_select_date($params, Smarty_Internal_Template $tem
     foreach ($params as $_key => $_value) {
         switch ($_key) {
             case 'time':
-                if (!is_array($_value) && $_value !== null) {
-                    $template->_checkPlugins(
-                        array(
-                            array(
-                                'function' => 'smarty_make_timestamp',
-                                'file'     => SMARTY_PLUGINS_DIR . 'shared.make_timestamp.php'
-                            )
-                        )
-                    );
-                    $time = smarty_make_timestamp($_value);
-                }
+                $$_key = $_value; // we'll handle conversion below
                 break;
             case 'month_names':
                 if (is_array($_value) && count($_value) === 12) {
@@ -178,43 +169,59 @@ function smarty_function_html_select_date($params, Smarty_Internal_Template $tem
     }
     // Note: date() is faster than strftime()
     // Note: explode(date()) is faster than date() date() date()
-    if (isset($params[ 'time' ]) && is_array($params[ 'time' ])) {
-        if (isset($params[ 'time' ][ $prefix . 'Year' ])) {
+
+    if (isset($time) && is_array($time)) {
+        if (isset($time[$prefix . 'Year'])) {
             // $_REQUEST[$field_array] given
-            foreach (array(
-                'Y' => 'Year',
-                'm' => 'Month',
-                'd' => 'Day'
-            ) as $_elementKey => $_elementName) {
+            foreach ([
+                         'Y' => 'Year',
+                         'm' => 'Month',
+                         'd' => 'Day'
+                     ] as $_elementKey => $_elementName) {
                 $_variableName = '_' . strtolower($_elementName);
                 $$_variableName =
-                    isset($params[ 'time' ][ $prefix . $_elementName ]) ? $params[ 'time' ][ $prefix . $_elementName ] :
+                    isset($time[$prefix . $_elementName]) ? $time[$prefix . $_elementName] :
                         date($_elementKey);
             }
-        } elseif (isset($params[ 'time' ][ $field_array ][ $prefix . 'Year' ])) {
+        } elseif (isset($time[$field_array][$prefix . 'Year'])) {
             // $_REQUEST given
-            foreach (array(
-                'Y' => 'Year',
-                'm' => 'Month',
-                'd' => 'Day'
-            ) as $_elementKey => $_elementName) {
+            foreach ([
+                         'Y' => 'Year',
+                         'm' => 'Month',
+                         'd' => 'Day'
+                     ] as $_elementKey => $_elementName) {
                 $_variableName = '_' . strtolower($_elementName);
-                $$_variableName = isset($params[ 'time' ][ $field_array ][ $prefix . $_elementName ]) ?
-                    $params[ 'time' ][ $field_array ][ $prefix . $_elementName ] : date($_elementKey);
+                $$_variableName = isset($time[$field_array][$prefix . $_elementName]) ?
+                    $time[$field_array][$prefix . $_elementName] : date($_elementKey);
             }
         } else {
             // no date found, use NOW
-            list($_year, $_month, $_day) = $time = explode('-', date('Y-m-d'));
+            [$_year, $_month, $_day] = explode('-', date('Y-m-d'));
         }
+    } elseif (isset($time) && preg_match("/(\d*)-(\d*)-(\d*)/", $time, $matches)) {
+        $_year = $_month = $_day = null;
+        if ($matches[1] > '') $_year = (int) $matches[1];
+        if ($matches[2] > '') $_month = (int) $matches[2];
+        if ($matches[3] > '') $_day = (int) $matches[3];
     } elseif ($time === null) {
         if (array_key_exists('time', $params)) {
-            $_year = $_month = $_day = $time = null;
+            $_year = $_month = $_day = null;
         } else {
-            list($_year, $_month, $_day) = $time = explode('-', date('Y-m-d'));
+            [$_year, $_month, $_day] = explode('-', date('Y-m-d'));
         }
     } else {
-        list($_year, $_month, $_day) = $time = explode('-', date('Y-m-d', $time));
+        $template->_checkPlugins(
+            array(
+                array(
+                    'function' => 'smarty_make_timestamp',
+                    'file'     => SMARTY_PLUGINS_DIR . 'shared.make_timestamp.php'
+                )
+            )
+        );
+        $time = smarty_make_timestamp($time);
+        [$_year, $_month, $_day] = explode('-', date('Y-m-d', $time));
     }
+
     // make syntax "+N" or "-N" work with $start_year and $end_year
     // Note preg_match('!^(\+|\-)\s*(\d+)$!', $end_year, $match) is slower than trim+substr
     foreach (array(

libs/plugins/function.mailto.php

@@ -48,8 +48,13 @@
  */
 function smarty_function_mailto($params)
 {
-    static $_allowed_encoding =
-        array('javascript' => true, 'javascript_charcode' => true, 'hex' => true, 'none' => true);
+    static $_allowed_encoding = [
+        'javascript' => true,
+        'javascript_charcode' => true,
+        'hex' => true,
+        'none' => true
+    ];
+
     $extra = '';
     if (empty($params[ 'address' ])) {
         trigger_error("mailto: missing 'address' parameter", E_USER_WARNING);
@@ -57,19 +62,19 @@ function smarty_function_mailto($params)
     } else {
         $address = $params[ 'address' ];
     }
+
     $text = $address;
+
     // netscape and mozilla do not decode %40 (@) in BCC field (bug?)
     // so, don't encode it.
-    $search = array('%40', '%2C');
-    $replace = array('@', ',');
-    $mail_parms = array();
+    $mail_parms = [];
     foreach ($params as $var => $value) {
         switch ($var) {
             case 'cc':
             case 'bcc':
             case 'followupto':
                 if (!empty($value)) {
-                    $mail_parms[] = $var . '=' . str_replace($search, $replace, rawurlencode($value));
+                    $mail_parms[] = $var . '=' . str_replace(['%40', '%2C'], ['@', ','], rawurlencode($value));
                 }
                 break;
             case 'subject':
@@ -83,6 +88,7 @@ function smarty_function_mailto($params)
             default:
         }
     }
+
     if ($mail_parms) {
         $address .= '?' . join('&', $mail_parms);
     }
@@ -94,19 +100,21 @@ function smarty_function_mailto($params)
         );
         return;
     }
+
+    $string = '<a href="mailto:' . htmlspecialchars($address, ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401, Smarty::$_CHARSET) .
+        '" ' . $extra . '>' . htmlspecialchars($text, ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401, Smarty::$_CHARSET) . '</a>';
+
     if ($encode === 'javascript') {
-	    $string = '<a href="mailto:' . $address . '" ' . $extra . '>' . $text . '</a>';
         $js_encode = '';
         for ($x = 0, $_length = strlen($string); $x < $_length; $x++) {
             $js_encode .= '%' . bin2hex($string[ $x ]);
         }
         return '<script type="text/javascript">document.write(unescape(\'' . $js_encode . '\'))</script>';
     } elseif ($encode === 'javascript_charcode') {
-        $string = '<a href="mailto:' . $address . '" ' . $extra . '>' . $text . '</a>';
         for ($x = 0, $_length = strlen($string); $x < $_length; $x++) {
             $ord[] = ord($string[ $x ]);
         }
-	    return '<script type="text/javascript">document.write(String.fromCharCode(' . implode(',', $ord) . '))</script>';
+        return '<script type="text/javascript">document.write(String.fromCharCode(' . implode(',', $ord) . '))</script>';
     } elseif ($encode === 'hex') {
         preg_match('!^(.*)(\?.*)$!', $address, $match);
         if (!empty($match[ 2 ])) {
@@ -129,6 +137,6 @@ function smarty_function_mailto($params)
         return '<a href="' . $mailto . $address_encode . '" ' . $extra . '>' . $text_encode . '</a>';
     } else {
         // no encoding
-        return '<a href="mailto:' . $address . '" ' . $extra . '>' . $text . '</a>';
+        return $string;
     }
 }

libs/plugins/function.math.php

@@ -70,7 +70,7 @@ function smarty_function_math($params, $template)
     $number = '(?:\d+(?:[,.]\d+)?|pi|π)'; // What is a number
     $functionsOrVars = '((?:0x[a-fA-F0-9]+)|([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*))';
     $operators = '[,+\/*\^%-]'; // Allowed math operators
-    $regexp = '/^(('.$number.'|'.$functionsOrVars.'|('.$functionsOrVars.'\s*\((?1)+\)|\((?1)+\)))(?:'.$operators.'(?1))?)+$/';
+    $regexp = '/^(('.$number.'|'.$functionsOrVars.'|('.$functionsOrVars.'\s*\((?1)*\)|\((?1)*\)))(?:'.$operators.'(?1))?)+$/';
 
     if (!preg_match($regexp, $equation)) {
         trigger_error("math: illegal characters", E_USER_WARNING);

libs/plugins/modifier.capitalize.php

@@ -22,6 +22,8 @@
  */
 function smarty_modifier_capitalize($string, $uc_digits = false, $lc_rest = false)
 {
+	$string = (string) $string;
+
     if (Smarty::$_MBSTRING) {
         if ($lc_rest) {
             // uppercase (including hyphenated words)

run_tests_for_all_php_versions.sh

@@ -0,0 +1,7 @@
+# Runs tests for all supported PHP versions
+docker-compose run php71 && \
+docker-compose run php72 && \
+docker-compose run php73 && \
+docker-compose run php74 && \
+docker-compose run php80 && \
+docker-compose run php81

tests/UnitTests/TemplateSource/TagTests/PluginFunction/PluginFunctionHtmlSelectDateTest.php

@@ -210,7 +210,7 @@ class PluginFunctionHtmlSelectDateTest extends PHPUnit_Smarty
     public function setUp(): void
     {
         $this->setUpSmarty(dirname(__FILE__));
-	    $this->smarty->setErrorReporting(E_ALL & ~E_DEPRECATED);
+        $this->smarty->setErrorReporting(E_ALL & ~E_DEPRECATED);
 
         $year = date('Y');
         $this->now = mktime(15, 0, 0, 2, 20, $year);
@@ -239,6 +239,7 @@ class PluginFunctionHtmlSelectDateTest extends PHPUnit_Smarty
 
         $this->years['default'] = "<option value=\"{$year}\" selected=\"selected\">{$year}</option>";
         $this->years['none'] = "<option value=\"{$year}\">{$year}</option>";
+
     }
 
     protected function reverse($string)
@@ -395,6 +396,33 @@ class PluginFunctionHtmlSelectDateTest extends PHPUnit_Smarty
         $this->assertEquals($result, $tpl->fetch());
     }
 
+    public function testEmptyDayWithDateString() {
+        $n = "\n";
+        $result = '<select name="Date_Month">' . $n . $this->months['default'] . $n . '</select>'
+            . $n . '<select name="Date_Day">' . $n . '<option value="">day</option>' . $n . $this->days['none'] . $n . '</select>'
+            . $n . '<select name="Date_Year">' . $n . $this->years['start_2005'] . $n . '</select>';
+        $tpl = $this->smarty->createTemplate('eval:{html_select_date time="2022-02-" day_empty="day" start_year=2005}');
+        $this->assertEquals($result, $tpl->fetch());
+    }
+
+    public function testEmptyMonthWithDateStrings() {
+        $n = "\n";
+        $result = '<select name="Date_Month">' . $n . '<option value="">month</option>' . $n . $this->months['none'] . $n . '</select>'
+            . $n . '<select name="Date_Day">' . $n . $this->days['default'] . $n . '</select>'
+            . $n . '<select name="Date_Year">' . $n . $this->years['start_2005'] . $n . '</select>';
+        $tpl = $this->smarty->createTemplate('eval:{html_select_date time="2022--20" month_empty="month" start_year=2005}');
+        $this->assertEquals($result, $tpl->fetch());
+    }
+
+    public function testEmptyYearWithDateStrings() {
+        $n = "\n";
+        $result = '<select name="Date_Month">' . $n . $this->months['default'] . $n . '</select>'
+            . $n . '<select name="Date_Day">' . $n . $this->days['default'] . $n . '</select>'
+            . $n . '<select name="Date_Year">' . $n . '<option value="">year</option>' . $n . $this->years['none'] . $n . '</select>';
+        $tpl = $this->smarty->createTemplate('eval:{html_select_date time="-02-20" year_empty="year"}');
+        $this->assertEquals($result, $tpl->fetch());
+    }
+
     public function testId()
     {
         $n = "\n";

tests/UnitTests/TemplateSource/TagTests/PluginFunction/PluginFunctionMailtoTest.php

@@ -150,7 +150,7 @@ class PluginFunctionMailtoTest extends PHPUnit_Smarty
 
     public function testUmlauts()
     {
-        $result = '<a href="mailto:me+smtpext@example.com?cc=you@example.com,they@example.com&subject=h%C3%A4llo%20w%C3%B6rld" >me+smtpext@example.com</a>';
+        $result = '<a href="mailto:me+smtpext@example.com?cc=you@example.com,they@example.com&amp;subject=h%C3%A4llo%20w%C3%B6rld" >me+smtpext@example.com</a>';
         $tpl = $this->smarty->createTemplate('eval:{mailto address="me+smtpext@example.com" cc="you@example.com,they@example.com" subject="hällo wörld"}');
         $this->assertEquals(str_replace("\r", '', $result), $this->smarty->fetch($tpl));
     }
@@ -158,9 +158,26 @@ class PluginFunctionMailtoTest extends PHPUnit_Smarty
     public function testUmlautsWithoutMbstring()
     {
         Smarty::$_MBSTRING = false;
-        $result = '<a href="mailto:me+smtpext@example.com?cc=you@example.com,they@example.com&subject=h%C3%A4llo%20w%C3%B6rld" >me+smtpext@example.com</a>';
+        $result = '<a href="mailto:me+smtpext@example.com?cc=you@example.com,they@example.com&amp;subject=h%C3%A4llo%20w%C3%B6rld" >me+smtpext@example.com</a>';
         $tpl = $this->smarty->createTemplate('eval:{mailto address="me+smtpext@example.com" cc="you@example.com,they@example.com" subject="hällo wörld"}');
         $this->assertEquals(str_replace("\r", '', $result), $this->smarty->fetch($tpl));
         Smarty::$_MBSTRING = true;
     }
+
+	public function testJavascriptChars()
+	{
+		$result = '<script type="text/javascript">document.write(unescape(\'%3c%61%20%68%72%65%66%3d%22%6d%61%69%6c%74%6f%3a%6d%65%40%65%78%61%6d%70%6c%65%2e%63%6f%6d%26%71%75%6f%74%3b%26%67%74%3b%6d%65%40%65%78%61%6d%70%6c%65%2e%63%6f%6d%26%23%30%33%39%3b%29%3b%20%61%6c%65%72%74%28%26%71%75%6f%74%3b%69%6e%6a%65%63%74%69%6f%6e%26%71%75%6f%74%3b%29%3b%20%2f%2f%22%20%3e%6d%65%40%65%78%61%6d%70%6c%65%2e%63%6f%6d%26%71%75%6f%74%3b%26%67%74%3b%6d%65%40%65%78%61%6d%70%6c%65%2e%63%6f%6d%26%23%30%33%39%3b%29%3b%20%61%6c%65%72%74%28%26%71%75%6f%74%3b%69%6e%6a%65%63%74%69%6f%6e%26%71%75%6f%74%3b%29%3b%20%2f%2f%3c%2f%61%3e\'))</script>';
+		$this->smarty->assign('address', 'me@example.com">me@example.com\'); alert("injection"); //');
+		$tpl = $this->smarty->createTemplate('eval:{mailto address=$address encode=javascript}');
+		$this->assertEquals(str_replace("\r", '', $result), $this->smarty->fetch($tpl));
+	}
+
+	public function testHtmlChars()
+	{
+		$result = '<a href="mailto:me@example.com&quot;&gt;&lt;h1&gt;" class="email">me@example.com&quot;&gt;&lt;h1&gt;</a>';
+		$this->smarty->assign('address', 'me@example.com"><h1>');
+		$tpl = $this->smarty->createTemplate('eval:{mailto address=$address extra=\'class="email"\'}');
+		$this->assertEquals(str_replace("\r", '', $result), $this->smarty->fetch($tpl));
+	}
+
 }

tests/UnitTests/TemplateSource/ValueTests/Math/MathTest.php

@@ -156,4 +156,12 @@ class MathTest extends PHPUnit_Smarty
 		$this->assertEquals($expected, $this->smarty->fetch($tpl));
 	}
 
+	public function testRand()
+	{
+		$tpl = $this->smarty->createTemplate('eval:{$x = "0"}{math equation="x * rand()" x=$x}');
+		// this assertion may seem silly, but it serves to prove that using rand() without a parameter
+		// will not trigger a security error (see https://github.com/smarty-php/smarty/issues/794)
+		$this->assertEquals("0", $this->smarty->fetch($tpl));
+	}
+
 }