X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=WEB-INF%2Flib%2Fcommon.lib.php;h=e2950753ec4e208475822050253aa0f122cf763b;hb=bbdb5228ab00dfeb9d91217ce0e990842ab6da80;hp=0e9ff9e49cfb0f6922253689d89482109583dcf3;hpb=cb611bf2abbb4072459632155b11301ae6fe840b;p=timetracker.git

diff --git a/WEB-INF/lib/common.lib.php b/WEB-INF/lib/common.lib.php
index 0e9ff9e4..e2950753 100644
--- a/WEB-INF/lib/common.lib.php
+++ b/WEB-INF/lib/common.lib.php
@@ -165,7 +165,7 @@ function check_extension($ext)
 // isTrue is a helper function to return correct false for older config.php values defined as a string 'false'.
 function isTrue($val)
 {
-  return ($val === true);
+  return (defined($val) && constant($val) === true);
 }
 
 // ttValidString is used to check user input to validate a string.
@@ -182,6 +182,15 @@ function ttValidString($val, $emptyValid = false)
   return true;    
 }
 
+// ttValidTemplateText is used to check template-based user input.
+// When templates are used, required input parts must be filled by user.
+// We identify these parts by 3 "stop sign" emojis (aka "octagonal sign" U+1F6D1).
+function ttValidTemplateText($val)
+{
+  $valid = strpos($val, '🛑🛑🛑') === false; // no 3 "stop sign" emojis in a row.
+  return $valid;
+}
+
 // ttValidEmail is used to check user input to validate an email string.
 function ttValidEmail($val, $emptyValid = false)
 {
@@ -391,6 +400,14 @@ function ttStartsWith($string, $startString)
     return (substr($string, 0, $len) === $startString);
 }
 
+// ttEndsWith functions checks if a string ends with a given substring.
+function ttEndsWith($string, $endString)
+{
+    $len = strlen($endString);
+    if ($len == 0) return true;
+    return (substr($string, -$len) === $endString);
+}
+
 // ttDateToUserFormat converts a date from database format to user format.
 function ttDateToUserFormat($date)
 {
@@ -398,3 +415,14 @@ function ttDateToUserFormat($date)
   $o_date = new DateAndTime(DB_DATEFORMAT, $date);
   return $o_date->toString($user->date_format);
 }
+
+// ttRandomString generates a random alphanumeric string.
+function ttRandomString($length = 32) {
+  $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
+  $charactersLength = strlen($characters);
+  $randomString = '';
+  for ($i = 0; $i < $length; $i++) {
+    $randomString .= $characters[rand(0, $charactersLength - 1)];
+  }
+  return $randomString;
+}