#1749, #1754, #1901 - Add debugging message if Zend Guard code obfuscation is enabled.

Zend Guard code obfuscation is enabled by default on many PHP 5.3+ installations,
but we don't use it and Kohana 2.4 is incompatible with it (see Trac tickets).
Rather than crash and/or hack core Kohana code, we can display an error message
to help the end user disable it.

1 files changed, 7 insertions, 0 deletions

diff --git a/index.php b/index.php
index 5f6d231b..c39452ea 100644
--- a/index.php
+++ b/index.php
@@ -29,6 +29,13 @@ if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
   exit("Gallery is not supported on Windows (PHP reports that you're using: " . PHP_OS . ")");
 }
 
+// Gallery doesn't use Zend Guard code obfuscation, and Kohana 2.4 will not work if level is 3+.
+if (function_exists("zend_current_obfuscation_level") && (zend_current_obfuscation_level() >= 3)) {
+  exit("Gallery doesn't use Zend Guard code obfuscation, and is incompatible if it's running " .
+       "with a level of 3 or higher.  For Gallery to run, please edit your main php.ini file and " .
+       "change/add the following line: 'zend_loader.obfuscation_level_support = 2'");
+}
+
 // PHP 5.4 requires a timezone - if one isn't set date functions aren't going to work properly.
 // We'll log this once the logging system is initialized (in the gallery_event::gallery_ready).
 if (!ini_get("date.timezone")) {