library/smarty/libs/sysplugins/smarty_internal_extension_config.php
author Markus Broeker<broeker.markus@googlemail.com>
Sun, 14 Feb 2016 21:40:29 +0100
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<?php
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/**
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 * @package    Smarty
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 * @subpackage PluginsInternal
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 */
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class Smarty_Internal_Extension_Config {
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    /**
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     * @param        $obj
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     * @param        $config_file
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     * @param null $sections
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     * @param string $scope
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     */
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    static function configLoad($obj, $config_file, $sections = null, $scope = 'local') {
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        $smarty = isset($obj->smarty) ? $obj->smarty : $obj;
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        $confObj = new $smarty->template_class($config_file, $smarty, $obj);
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        $confObj->caching = Smarty::CACHING_OFF;
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        $confObj->source = Smarty_Template_Config::load($confObj);
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        $confObj->source->config_sections = $sections;
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        $confObj->source->scope = $scope;
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        $confObj->compiled = Smarty_Template_Compiled::load($confObj);
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        if ($confObj->smarty->debugging) {
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            Smarty_Internal_Debug::start_render($confObj);
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        }
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        $confObj->compiled->render($confObj);
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        if ($confObj->smarty->debugging) {
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            Smarty_Internal_Debug::end_render($confObj);
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        }
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        if ($obj instanceof Smarty_Internal_Template) {
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            $obj->properties['file_dependency'][$confObj->source->uid] = array($confObj->source->filepath, $confObj->source->timestamp, $confObj->source->type);
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        }
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    }
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    /**
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     * load config variables
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     *
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     * @param mixed $sections array of section names, single section or null
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     * @param string $scope global,parent or local
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     *
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     * @throws Exception
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     */
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    static function loadConfigVars($_template, $_config_vars) {
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        $scope = $_template->source->scope;
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        // pointer to scope (local scope is parent of template object
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        $scope_ptr = $_template->parent;
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        if ($scope == 'parent') {
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            if (isset($_template->parent->parent)) {
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                $scope_ptr = $_template->parent->parent;
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            }
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        } elseif ($scope == 'root' || $scope == 'global') {
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            while (isset($scope_ptr->parent)) {
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                $scope_ptr = $scope_ptr->parent;
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            }
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        }
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        // copy global config vars
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        foreach ($_config_vars['vars'] as $variable => $value) {
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            if ($_template->smarty->config_overwrite || !isset($scope_ptr->config_vars[$variable])) {
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                $scope_ptr->config_vars[$variable] = $value;
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            } else {
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                $scope_ptr->config_vars[$variable] = array_merge((array)$scope_ptr->config_vars[$variable], (array)$value);
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            }
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        }
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        // scan sections
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        $sections = $_template->source->config_sections;
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        if (!empty($sections)) {
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            foreach ((array)$sections as $_template_section) {
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                if (isset($_config_vars['sections'][$_template_section])) {
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                    foreach ($_config_vars['sections'][$_template_section]['vars'] as $variable => $value) {
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                        if ($_template->smarty->config_overwrite || !isset($scope_ptr->config_vars[$variable])) {
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                            $scope_ptr->config_vars[$variable] = $value;
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                        } else {
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                            $scope_ptr->config_vars[$variable] = array_merge((array)$scope_ptr->config_vars[$variable], (array)$value);
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                        }
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                    }
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                }
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            }
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        }
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    }
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    /**
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     * Returns a single or all config variables
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     *
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     * @param  string $varname variable name or null
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     * @param bool $search_parents
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     *
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     * @return string variable value or or array of variables
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     */
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    static function getConfigVars($obj, $varname = null, $search_parents = true) {
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        $_ptr = $obj;
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        $var_array = array();
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        while ($_ptr !== null) {
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            if (isset($varname)) {
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                if (isset($_ptr->config_vars[$varname])) {
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                    return $_ptr->config_vars[$varname];
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                }
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            } else {
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                $var_array = array_merge($_ptr->config_vars, $var_array);
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            }
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            // not found, try at parent
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            if ($search_parents) {
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                $_ptr = $_ptr->parent;
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            } else {
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                $_ptr = null;
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            }
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        }
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        if (isset($varname)) {
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            return '';
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        } else {
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            return $var_array;
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        }
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    }
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    /**
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     * gets  a config variable
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     *
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     * @param  string $variable the name of the config variable
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     * @param bool $error_enable
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     *
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     * @return mixed  the value of the config variable
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     */
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    static function getConfigVariable($obj, $variable, $error_enable = true) {
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        $_ptr = $obj;
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        while ($_ptr !== null) {
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            if (isset($_ptr->config_vars[$variable])) {
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                // found it, return it
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                return $_ptr->config_vars[$variable];
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            }
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            // not found, try at parent
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            $_ptr = $_ptr->parent;
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        }
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        if ($obj->error_unassigned && $error_enable) {
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            // force a notice
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            $x = $$variable;
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        }
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        return null;
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    }
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    /**
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     * remove a single or all config variables
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     *
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     * @param  string $name variable name or null
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     *
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     * @return Smarty_Internal_Data current Smarty_Internal_Data (or Smarty or Smarty_Internal_Template) instance for chaining
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     */
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    static function clearConfig($obj, $name = null) {
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        if (isset($name)) {
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            unset($obj->config_vars[$name]);
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        } else {
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            $obj->config_vars = array();
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        }
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        return $obj;
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    }
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}