1 files changed, 97 insertions, 0 deletions
diff --git a/include/smarty/libs/sysplugins/smarty_internal_runtime_tplfunction.php b/include/smarty/libs/sysplugins/smarty_internal_runtime_tplfunction.php
new file mode 100644
index 000000000..cc529c633
--- /dev/null
+++ b/include/smarty/libs/sysplugins/smarty_internal_runtime_tplfunction.php
@@ -0,0 +1,97 @@
+<?php
+
+/**
+ * Tplfunc Runtime Methods callTemplateFunction
+ *
+ * @package    Smarty
+ * @subpackage PluginsInternal
+ * @author     Uwe Tews
+ *
+ **/
+class Smarty_Internal_Runtime_TplFunction
+{
+    /**
+     * Call template function
+     *
+     * @param \Smarty_Internal_Template $tpl     template object
+     * @param string                    $name    template function name
+     * @param array                     $params  parameter array
+     * @param bool                      $nocache true if called nocache
+     *
+     * @throws \SmartyException
+     */
+    public function callTemplateFunction(\Smarty_Internal_Template $tpl, $name, $params, $nocache)
+    {
+        if (isset($tpl->tpl_function[$name])) {
+            if (!$tpl->caching || ($tpl->caching && $nocache)) {
+                $function = $tpl->tpl_function[$name]['call_name'];
+            } else {
+                if (isset($tpl->tpl_function[$name]['call_name_caching'])) {
+                    $function = $tpl->tpl_function[$name]['call_name_caching'];
+                } else {
+                    $function = $tpl->tpl_function[$name]['call_name'];
+                }
+            }
+            if (function_exists($function)) {
+                $function ($tpl, $params);
+                return;
+            }
+            // try to load template function dynamically
+            if ($this->addTplFuncToCache($tpl, $name, $function)) {
+                $function ($tpl, $params);
+                return;
+            }
+        }
+        throw new SmartyException("Unable to find template function '{$name}'");
+    }
+
+    /**
+     *
+     * Add template function to cache file for nocache calls
+     *
+     * @param Smarty_Internal_Template $tpl
+     * @param string                   $_name     template function name
+     * @param string                   $_function PHP function name
+     *
+     * @return bool
+     */
+    public function addTplFuncToCache(Smarty_Internal_Template $tpl, $_name, $_function)
+    {
+        $funcParam = $tpl->tpl_function[$_name];
+        if (is_file($funcParam['compiled_filepath'])) {
+            // read compiled file
+            $code = file_get_contents($funcParam['compiled_filepath']);
+            // grab template function
+            if (preg_match("/\/\* {$_function} \*\/([\S\s]*?)\/\*\/ {$_function} \*\//", $code, $match)) {
+                // grab source info from file dependency
+                preg_match("/\s*'{$funcParam['uid']}'([\S\s]*?)\),/", $code, $match1);
+                unset($code);
+                // make PHP function known
+                eval($match[0]);
+                if (function_exists($_function)) {
+                    // search cache file template
+                    $tplPtr = $tpl;
+                    while (!isset($tplPtr->cached) && isset($tplPtr->parent)) {
+                        $tplPtr = $tplPtr->parent;
+                    }
+                    // add template function code to cache file
+                    if (isset($tplPtr->cached)) {
+                        $cache = $tplPtr->cached;
+                        $content = $cache->read($tplPtr);
+                        if ($content) {
+                            // check if we must update file dependency
+                            if (!preg_match("/'{$funcParam['uid']}'(.*?)'nocache_hash'/", $content, $match2)) {
+                                $content = preg_replace("/('file_dependency'(.*?)\()/", "\\1{$match1[0]}", $content);
+                            }
+                            $tplPtr->smarty->ext->_updateCache->write($cache, $tplPtr, preg_replace('/\s*\?>\s*$/', "\n", $content) . "\n" .
+                                                 preg_replace(array('/^\s*<\?php\s+/', '/\s*\?>\s*$/'), "\n",
+                                                              $match[0]));
+                        }
+                    }
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+}