GD autodetection should now work on all systems

ChangeLog

@@ -5,6 +5,13 @@ phpMyAdmin - Changelog
 $Id$
 $Source$
 
+2003-06-13 Michal Cihar  <nijel@users.sourceforge.net>
+    * libraries/charset_conversion.lib.php3, libraries/common.lib.php3,
+      libraries/defines_php.lib.php3, libraries/dbg/setup.php3: Use new PMA_dl
+      function, that checks true dl availability (fixes #747717). All checks
+      are based on php 4.3.1 source, so if this gets changed, we will need to
+      change checks also.
+    
 2003-06-12 Marc Delisle  <lem9@users.sourceforge.net>
     * libraries/relation.lib.php3: bug 751787: should not disable all
       the features, when the relation feature is broken

libraries/charset_conversion.lib.php3

@@ -13,24 +13,10 @@ if (!defined('PMA_CHARSET_CONVERSION_LIB_INCLUDED')){
 
     /**
      * Loads the recode or iconv extensions if any of it is not loaded yet
-     *
-     * (do not put a "@" before the dl() because we want to see the error
-     * message: multithreaded web servers don't support dl() but we cannot
-     * detect if the server is multithreaded, and under PHP 4.2.1 at least,
-     * it reports that the function dl exists...)
      */
     if (isset($cfg['AllowAnywhereRecoding'])
         && $cfg['AllowAnywhereRecoding']
-        && $allow_recoding
+        && $allow_recoding) {
-        && ((PMA_PHP_INT_VERSION >= 40000 && !@ini_get('safe_mode') && @ini_get('enable_dl'))
-        || (PMA_PHP_INT_VERSION < 40000 && PMA_PHP_INT_VERSION > 30009 && !@get_cfg_var('safe_mode')))
-        && @function_exists('dl')) {
-
-        if (PMA_IS_WINDOWS) {
-            $suffix = '.dll';
-        } else {
-            $suffix = '.so';
-        }
 
         // Initializes configuration for default, if not set:
         if (!isset($cfg['RecodingEngine'])) {
@@ -39,7 +25,7 @@ if (!defined('PMA_CHARSET_CONVERSION_LIB_INCLUDED')){
 
         if ($cfg['RecodingEngine'] == 'recode') {
             if (!@extension_loaded('recode')) {
-                @dl('recode' . $suffix);
+                PMA_dl('recode');
                 if (!@extension_loaded('recode')) {
                     echo $strCantLoadRecodeIconv;
                     exit();
@@ -48,7 +34,7 @@ if (!defined('PMA_CHARSET_CONVERSION_LIB_INCLUDED')){
             $PMA_recoding_engine             = 'recode';
         } else if ($cfg['RecodingEngine'] == 'iconv') {
             if (!@extension_loaded('iconv')) {
-                @dl('iconv' . $suffix);
+                PMA_dl('iconv');
                 if (!@extension_loaded('iconv')) {
                     echo $strCantLoadRecodeIconv;
                     exit();
@@ -61,9 +47,9 @@ if (!defined('PMA_CHARSET_CONVERSION_LIB_INCLUDED')){
             } else if (@extension_loaded('recode')) {
                 $PMA_recoding_engine         = 'recode';
             } else {
-                @dl('iconv' . $suffix);
+                PMA_dl('iconv');
                 if (!@extension_loaded('iconv')) {
-                    @dl('recode' . $suffix);
+                    PMA_dl('recode');
                     if (!@extension_loaded('recode')) {
                         echo $strCantLoadRecodeIconv;
                         exit();

libraries/common.lib.php3

@@ -250,30 +250,15 @@ h1    {font-family: sans-serif; font-size: large; font-weight: bold}
 
         /**
          * Loads the mysql extensions if it is not loaded yet
-         * staybyte - 26. June 2001
          */
-        if (((PMA_PHP_INT_VERSION >= 40000 && !@ini_get('safe_mode') && @ini_get('enable_dl'))
+        if (!@function_exists('mysql_connect')) {
-            || (PMA_PHP_INT_VERSION < 40000 && PMA_PHP_INT_VERSION > 30009 && !@get_cfg_var('safe_mode')))
-            && @function_exists('dl')) {
             if (PMA_PHP_INT_VERSION < 40000) {
                 $extension = 'MySQL';
             } else {
                 $extension = 'mysql';
             }
-            if (PMA_IS_WINDOWS) {
+            PMA_dl($extension . $suffix);
-                $suffix = '.dll';
-            } else {
-                $suffix = '.so';
         }
-            if (!@extension_loaded($extension)) {
-                @dl($extension . $suffix);
-            }
-            if (!@extension_loaded($extension)) {
-                echo $strCantLoadMySQL . '<br />' . "\n"
-                     . '<a href="./Documentation.html#faqmysql" target="documentation">' . $GLOBALS['strDocu'] . '</a>' . "\n";
-                exit();
-            }
-        } // end load mysql extension
 
         // check whether mysql is available
         if (!@function_exists('mysql_connect')) {

libraries/dbg/setup.php3

@@ -9,24 +9,17 @@ if (!defined('PMA_DBG_SETUP_INCLUDED')) {
         /**
          * Loads the DBG extension if needed
          */
-    if ( (PMA_PHP_INT_VERSION >= 40000 && !@ini_get('safe_mode') && @ini_get('enable_dl'))
+        if (PMA_PHP_INT_VERSION >= 40000) {
-        && @function_exists('dl')) {
+            if (!@extension_loaded('dbg')) {
-      $extension = 'dbg';
+                PMA_dl('dbg');
-      if (PMA_IS_WINDOWS) {
-        $suffix = '.dll';
-      } else {
-        $suffix = '.so';
             }
-      if (!@extension_loaded($extension)) {
+            if (!@extension_loaded('dbg')) {
-        @dl($extension . $suffix);
-      }
-      if (!@extension_loaded($extension)) {
                 echo sprintf($strCantLoad, 'DBG') . '<br />' . "\n"
                     . '<a href="./Documentation.html#faqdbg" target="documentation">' . $GLOBALS['strDocu'] . '</a>' . "\n";
                 exit();
             }
             $GLOBALS['DBG'] = true;
-    } // end load mysql extension
+        }
     }
 }
 

libraries/defines_php.lib.php3

@@ -62,6 +62,43 @@ if (!defined('PMA_IS_WINDOWS')) {
     }
 }
 
+function PMA_dl($module) {
+    if (!isset($GLOBALS['PMA_dl_allowed'])) {
+        if (((PMA_PHP_INT_VERSION >= 40000 && !@ini_get('safe_mode') && @ini_get('enable_dl'))
+            || (PMA_PHP_INT_VERSION < 40000 && PMA_PHP_INT_VERSION > 30009 && !@get_cfg_var('safe_mode')))
+            && @function_exists('dl')) {
+
+            ob_start();
+            phpinfo(INFO_GENERAL); /* Only general info */
+            $a = strip_tags(ob_get_contents());
+            ob_end_clean();
+            /* Get GD version string from phpinfo output */
+            if (ereg('Thread Safety[[:space:]]*enabled', $a)) {
+                if (ereg('Server API[[:space:]]*\(CGI\|CLI\)', $a)) {
+                    $GLOBALS['PMA_dl_allowed'] = TRUE;
+                } else {
+                    $GLOBALS['PMA_dl_allowed'] = FALSE;
+                }
+            } else {
+                $GLOBALS['PMA_dl_allowed'] = TRUE;
+            }
+        } else {
+            $GLOBALS['PMA_dl_allowed'] = FALSE;
+        }
+    }
+    if (PMA_IS_WINDOWS) {
+        $suffix = '.dll';
+    } else {
+        $suffix = '.so';
+    }
+    if ($GLOBALS['PMA_dl_allowed']) {
+        return @dl($module . $suffix);
+    } else {
+        return FALSE;
+    }
+    
+}
+
 // Whether GD2 is present
 if (!defined('PMA_IS_GD2')) {
     if ($cfg['GD2Available'] == 'yes') {
@@ -69,17 +106,8 @@ if (!defined('PMA_IS_GD2')) {
     } elseif ($cfg['GD2Available'] == 'no') {
         define('PMA_IS_GD2', 0);
     } else {
-        if (((PMA_PHP_INT_VERSION >= 40000 && !@ini_get('safe_mode') && @ini_get('enable_dl'))
-            || (PMA_PHP_INT_VERSION < 40000 && PMA_PHP_INT_VERSION > 30009 && !@get_cfg_var('safe_mode')))
-            && @function_exists('dl')) {
-            if (PMA_IS_WINDOWS) {
-                $suffix = '.dll';
-            } else {
-                $suffix = '.so';
-            }
         if (!@extension_loaded('gd')) {
-                @dl('gd' . $suffix);
+            PMA_dl('gd');
-            }
         }
         if (!@function_exists('imagecreatetruecolor')) {
             define('PMA_IS_GD2', 0);
@@ -94,11 +122,11 @@ if (!defined('PMA_IS_GD2')) {
             } else {
                 /* We must do hard way... */
                 ob_start();
-                phpinfo(8); /* Only modules */
+                phpinfo(INFO_MODULES); /* Only modules */
-                $a = ob_get_contents();
+                $a = strip_tags(ob_get_contents());
                 ob_end_clean();
                 /* Get GD version string from phpinfo output */
-                if (ereg('<tr><td[^>]*>[^>]*GD Version[^<]*</td><td[^>]*>\([^<]*\)</td></tr>', $a, $v)) {
+                if (ereg('GD Version[[:space:]]*\(.*\)', $a, $v)) {
                     if (strstr($v, '2.')) {
                         define('PMA_IS_GD2', 1);
                     } else {