mirror of https://github.com/friendica/friendica
577 lines
17 KiB
PHP
577 lines
17 KiB
PHP
<?php
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/**
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* Smarty Internal Plugin Data
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* This file contains the basic classes and methods for template and variable creation
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*
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* @package Smarty
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* @subpackage Template
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* @author Uwe Tews
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*/
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/**
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* Base class with template and variable methods
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*
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* @package Smarty
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* @subpackage Template
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*/
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class Smarty_Internal_Data
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{
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/**
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* name of class used for templates
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*
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* @var string
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*/
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public $template_class = 'Smarty_Internal_Template';
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/**
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* template variables
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*
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* @var array
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*/
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public $tpl_vars = array();
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/**
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* parent template (if any)
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*
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* @var Smarty_Internal_Template
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*/
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public $parent = null;
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/**
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* configuration settings
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*
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* @var array
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*/
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public $config_vars = array();
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/**
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* assigns a Smarty variable
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*
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* @param array|string $tpl_var the template variable name(s)
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* @param mixed $value the value to assign
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* @param boolean $nocache if true any output of this variable will be not cached
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*
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* @return Smarty_Internal_Data current Smarty_Internal_Data (or Smarty or Smarty_Internal_Template) instance for chaining
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*/
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public function assign($tpl_var, $value = null, $nocache = false)
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{
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if (is_array($tpl_var)) {
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foreach ($tpl_var as $_key => $_val) {
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if ($_key != '') {
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$this->tpl_vars[$_key] = new Smarty_variable($_val, $nocache);
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}
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}
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} else {
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if ($tpl_var != '') {
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$this->tpl_vars[$tpl_var] = new Smarty_variable($value, $nocache);
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}
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}
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return $this;
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}
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/**
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* assigns a global Smarty variable
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*
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* @param string $varname the global variable name
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* @param mixed $value the value to assign
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* @param boolean $nocache if true any output of this variable will be not cached
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*
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* @return Smarty_Internal_Data current Smarty_Internal_Data (or Smarty or Smarty_Internal_Template) instance for chaining
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*/
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public function assignGlobal($varname, $value = null, $nocache = false)
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{
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if ($varname != '') {
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Smarty::$global_tpl_vars[$varname] = new Smarty_variable($value, $nocache);
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$ptr = $this;
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while ($ptr instanceof Smarty_Internal_Template) {
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$ptr->tpl_vars[$varname] = clone Smarty::$global_tpl_vars[$varname];
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$ptr = $ptr->parent;
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}
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}
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return $this;
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}
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/**
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* assigns values to template variables by reference
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*
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* @param string $tpl_var the template variable name
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* @param $value
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* @param boolean $nocache if true any output of this variable will be not cached
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*
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* @return Smarty_Internal_Data current Smarty_Internal_Data (or Smarty or Smarty_Internal_Template) instance for chaining
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*/
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public function assignByRef($tpl_var, &$value, $nocache = false)
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{
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if ($tpl_var != '') {
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$this->tpl_vars[$tpl_var] = new Smarty_variable(null, $nocache);
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$this->tpl_vars[$tpl_var]->value = & $value;
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}
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return $this;
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}
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/**
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* appends values to template variables
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*
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* @param array|string $tpl_var the template variable name(s)
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* @param mixed $value the value to append
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* @param boolean $merge flag if array elements shall be merged
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* @param boolean $nocache if true any output of this variable will be not cached
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*
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* @return Smarty_Internal_Data current Smarty_Internal_Data (or Smarty or Smarty_Internal_Template) instance for chaining
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*/
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public function append($tpl_var, $value = null, $merge = false, $nocache = false)
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{
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if (is_array($tpl_var)) {
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// $tpl_var is an array, ignore $value
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foreach ($tpl_var as $_key => $_val) {
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if ($_key != '') {
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if (!isset($this->tpl_vars[$_key])) {
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$tpl_var_inst = $this->getVariable($_key, null, true, false);
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if ($tpl_var_inst instanceof Undefined_Smarty_Variable) {
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$this->tpl_vars[$_key] = new Smarty_variable(null, $nocache);
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} else {
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$this->tpl_vars[$_key] = clone $tpl_var_inst;
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}
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}
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if (!(is_array($this->tpl_vars[$_key]->value) || $this->tpl_vars[$_key]->value instanceof ArrayAccess)) {
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settype($this->tpl_vars[$_key]->value, 'array');
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}
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if ($merge && is_array($_val)) {
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foreach ($_val as $_mkey => $_mval) {
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$this->tpl_vars[$_key]->value[$_mkey] = $_mval;
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}
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} else {
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$this->tpl_vars[$_key]->value[] = $_val;
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}
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}
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}
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} else {
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if ($tpl_var != '' && isset($value)) {
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if (!isset($this->tpl_vars[$tpl_var])) {
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$tpl_var_inst = $this->getVariable($tpl_var, null, true, false);
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if ($tpl_var_inst instanceof Undefined_Smarty_Variable) {
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$this->tpl_vars[$tpl_var] = new Smarty_variable(null, $nocache);
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} else {
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$this->tpl_vars[$tpl_var] = clone $tpl_var_inst;
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}
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}
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if (!(is_array($this->tpl_vars[$tpl_var]->value) || $this->tpl_vars[$tpl_var]->value instanceof ArrayAccess)) {
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settype($this->tpl_vars[$tpl_var]->value, 'array');
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}
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if ($merge && is_array($value)) {
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foreach ($value as $_mkey => $_mval) {
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$this->tpl_vars[$tpl_var]->value[$_mkey] = $_mval;
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}
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} else {
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$this->tpl_vars[$tpl_var]->value[] = $value;
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}
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}
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}
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return $this;
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}
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/**
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* appends values to template variables by reference
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*
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* @param string $tpl_var the template variable name
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* @param mixed &$value the referenced value to append
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* @param boolean $merge flag if array elements shall be merged
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*
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* @return Smarty_Internal_Data current Smarty_Internal_Data (or Smarty or Smarty_Internal_Template) instance for chaining
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*/
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public function appendByRef($tpl_var, &$value, $merge = false)
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{
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if ($tpl_var != '' && isset($value)) {
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if (!isset($this->tpl_vars[$tpl_var])) {
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$this->tpl_vars[$tpl_var] = new Smarty_variable();
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}
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if (!is_array($this->tpl_vars[$tpl_var]->value)) {
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settype($this->tpl_vars[$tpl_var]->value, 'array');
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}
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if ($merge && is_array($value)) {
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foreach ($value as $_key => $_val) {
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$this->tpl_vars[$tpl_var]->value[$_key] = & $value[$_key];
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}
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} else {
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$this->tpl_vars[$tpl_var]->value[] = & $value;
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}
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}
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return $this;
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}
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/**
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* Returns a single or all template variables
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*
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* @param string $varname variable name or null
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* @param object $_ptr optional pointer to data object
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* @param boolean $search_parents include parent templates?
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*
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* @return string variable value or or array of variables
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*/
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public function getTemplateVars($varname = null, $_ptr = null, $search_parents = true)
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{
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if (isset($varname)) {
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$_var = $this->getVariable($varname, $_ptr, $search_parents, false);
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if (is_object($_var)) {
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return $_var->value;
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} else {
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return null;
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}
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} else {
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$_result = array();
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if ($_ptr === null) {
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$_ptr = $this;
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}
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while ($_ptr !== null) {
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foreach ($_ptr->tpl_vars AS $key => $var) {
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if (!array_key_exists($key, $_result)) {
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$_result[$key] = $var->value;
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}
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}
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// not found, try at parent
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if ($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 ($search_parents && isset(Smarty::$global_tpl_vars)) {
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foreach (Smarty::$global_tpl_vars AS $key => $var) {
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if (!array_key_exists($key, $_result)) {
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$_result[$key] = $var->value;
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}
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}
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}
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return $_result;
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}
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}
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/**
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* clear the given assigned template variable.
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*
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* @param string|array $tpl_var the template variable(s) to clear
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*
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* @return Smarty_Internal_Data current Smarty_Internal_Data (or Smarty or Smarty_Internal_Template) instance for chaining
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*/
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public function clearAssign($tpl_var)
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{
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if (is_array($tpl_var)) {
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foreach ($tpl_var as $curr_var) {
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unset($this->tpl_vars[$curr_var]);
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}
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} else {
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unset($this->tpl_vars[$tpl_var]);
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}
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return $this;
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}
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/**
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* clear all the assigned template variables.
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*
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* @return Smarty_Internal_Data current Smarty_Internal_Data (or Smarty or Smarty_Internal_Template) instance for chaining
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*/
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public function clearAllAssign()
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{
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$this->tpl_vars = array();
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return $this;
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}
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/**
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* load a config file, optionally load just selected sections
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*
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* @param string $config_file filename
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* @param mixed $sections array of section names, single section or null
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*
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* @return Smarty_Internal_Data current Smarty_Internal_Data (or Smarty or Smarty_Internal_Template) instance for chaining
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*/
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public function configLoad($config_file, $sections = null)
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{
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// load Config class
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$config = new Smarty_Internal_Config($config_file, $this->smarty, $this);
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$config->loadConfigVars($sections);
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return $this;
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}
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/**
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* gets the object of a Smarty variable
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*
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* @param string $variable the name of the Smarty variable
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* @param object $_ptr optional pointer to data object
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* @param boolean $search_parents search also in parent data
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* @param bool $error_enable
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*
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* @return object the object of the variable
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*/
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public function getVariable($variable, $_ptr = null, $search_parents = true, $error_enable = true)
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{
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if ($_ptr === null) {
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$_ptr = $this;
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}
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while ($_ptr !== null) {
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if (isset($_ptr->tpl_vars[$variable])) {
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// found it, return it
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return $_ptr->tpl_vars[$variable];
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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(Smarty::$global_tpl_vars[$variable])) {
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// found it, return it
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return Smarty::$global_tpl_vars[$variable];
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}
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if ($this->smarty->error_unassigned && $error_enable) {
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// force a notice
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$x = $$variable;
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}
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return new Undefined_Smarty_Variable;
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}
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/**
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* gets a config variable
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*
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* @param string $variable the name of the config variable
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* @param bool $error_enable
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*
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* @return mixed the value of the config variable
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*/
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public function getConfigVariable($variable, $error_enable = true)
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{
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$_ptr = $this;
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while ($_ptr !== null) {
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if (isset($_ptr->config_vars[$variable])) {
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// found it, return it
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return $_ptr->config_vars[$variable];
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}
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// not found, try at parent
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$_ptr = $_ptr->parent;
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}
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if ($this->smarty->error_unassigned && $error_enable) {
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// force a notice
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$x = $$variable;
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}
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return null;
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}
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/**
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* gets a stream variable
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*
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* @param string $variable the stream of the variable
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*
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* @throws SmartyException
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* @return mixed the value of the stream variable
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*/
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public function getStreamVariable($variable)
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{
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$_result = '';
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$fp = fopen($variable, 'r+');
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if ($fp) {
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while (!feof($fp) && ($current_line = fgets($fp)) !== false) {
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$_result .= $current_line;
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}
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fclose($fp);
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return $_result;
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}
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if ($this->smarty->error_unassigned) {
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throw new SmartyException('Undefined stream variable "' . $variable . '"');
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} else {
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return null;
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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 $search_parents
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*
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* @return string variable value or or array of variables
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*/
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public function getConfigVars($varname = null, $search_parents = true)
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{
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$_ptr = $this;
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$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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* Deassigns a single or all config variables
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*
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* @param string $varname variable name or null
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*
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* @return Smarty_Internal_Data current Smarty_Internal_Data (or Smarty or Smarty_Internal_Template) instance for chaining
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*/
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public function clearConfig($varname = null)
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{
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if (isset($varname)) {
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unset($this->config_vars[$varname]);
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} else {
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$this->config_vars = array();
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}
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return $this;
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}
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}
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/**
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* class for the Smarty data object
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* The Smarty data object will hold Smarty variables in the current scope
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*
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* @package Smarty
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* @subpackage Template
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*/
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class Smarty_Data extends Smarty_Internal_Data
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{
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/**
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* Smarty object
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*
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* @var Smarty
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*/
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public $smarty = null;
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/**
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* create Smarty data object
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*
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* @param Smarty|array $_parent parent template
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* @param Smarty|Smarty_Internal_Template $smarty global smarty instance
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*
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* @throws SmartyException
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*/
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public function __construct($_parent = null, $smarty = null)
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{
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$this->smarty = $smarty;
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if (is_object($_parent)) {
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// when object set up back pointer
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$this->parent = $_parent;
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} elseif (is_array($_parent)) {
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// set up variable values
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foreach ($_parent as $_key => $_val) {
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$this->tpl_vars[$_key] = new Smarty_variable($_val);
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}
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} elseif ($_parent != null) {
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throw new SmartyException("Wrong type for template variables");
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}
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}
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}
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/**
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* class for the Smarty variable object
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* This class defines the Smarty variable object
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*
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* @package Smarty
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* @subpackage Template
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*/
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class Smarty_Variable
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{
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/**
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* template variable
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*
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* @var mixed
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*/
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public $value = null;
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/**
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* if true any output of this variable will be not cached
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*
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* @var boolean
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*/
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public $nocache = false;
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/**
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* the scope the variable will have (local,parent or root)
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*
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* @var int
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*/
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public $scope = Smarty::SCOPE_LOCAL;
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/**
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* create Smarty variable object
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*
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* @param mixed $value the value to assign
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* @param boolean $nocache if true any output of this variable will be not cached
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* @param int $scope the scope the variable will have (local,parent or root)
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*/
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public function __construct($value = null, $nocache = false, $scope = Smarty::SCOPE_LOCAL)
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{
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$this->value = $value;
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$this->nocache = $nocache;
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$this->scope = $scope;
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}
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/**
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* <<magic>> String conversion
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*
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* @return string
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*/
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public function __toString()
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{
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return (string) $this->value;
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}
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}
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/**
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* class for undefined variable object
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* This class defines an object for undefined variable handling
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*
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* @package Smarty
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* @subpackage Template
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*/
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class Undefined_Smarty_Variable
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{
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/**
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* Returns FALSE for 'nocache' and NULL otherwise.
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*
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* @param string $name
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*
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* @return bool
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*/
|
|
public function __get($name)
|
|
{
|
|
if ($name == 'nocache') {
|
|
return false;
|
|
} else {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Always returns an empty string.
|
|
*
|
|
* @return string
|
|
*/
|
|
public function __toString()
|
|
{
|
|
return "";
|
|
}
|
|
}
|