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713 lines
23 KiB
PHP
713 lines
23 KiB
PHP
<?php
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/** @file */
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namespace Code\Render;
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use App;
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use Code\Extend\Widget;
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use Code\Lib\Menu;
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require_once('include/security.php');
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/**
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* @brief Comanche Page Description Language.
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*
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* Comanche is a markup language similar to bbcode with which to create elaborate
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* and complex web pages by assembling them from a series of components - some of
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* which are pre-built and others which can be defined on the fly. Comanche uses
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* a Page Decription Language to create these pages.
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*
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* Comanche primarily chooses what content will appear in various regions of the
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* page. The various regions have names and these names can change depending on
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* what layout template you choose.
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*/
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class Comanche
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{
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public function parse($s, $pass = 0)
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{
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$matches = [];
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$cnt = preg_match_all("/\[comment](.*?)\[\/comment]/ism", $s, $matches, PREG_SET_ORDER);
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if ($cnt) {
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foreach ($matches as $mtch) {
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$s = str_replace($mtch[0], '', $s);
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}
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}
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/*
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* This section supports the "switch" statement of the form given by the following
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* example. The [default][/default] block must be the last in the arbitrary
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* list of cases. The first case that matches the switch variable is used
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* and the rest are not evaluated.
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*
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* [switch observer.language]
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* [case de]
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* [block]german-content[/block]
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* [/case]
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* [case es]
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* [block]spanish-content[/block]
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* [/case]
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* [default]
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* [block]english-content[/block]
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* [/default]
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* [/switch]
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*/
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$cnt = preg_match_all("/\[switch (.*?)](.*?)\[default](.*?)\[\/default]\s*\[\/switch]/ism", $s, $matches, PREG_SET_ORDER);
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if ($cnt) {
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foreach ($matches as $mtch) {
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$switch_done = 0;
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$switch_var = $this->get_condition_var($mtch[1]);
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$default = $mtch[3];
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$cases = [];
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$cntt = preg_match_all("/\[case (.*?)](.*?)\[\/case]/ism", $mtch[2], $cases, PREG_SET_ORDER);
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if ($cntt) {
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foreach ($cases as $case) {
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if ($case[1] === $switch_var) {
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$switch_done = 1;
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$s = str_replace($mtch[0], $case[2], $s);
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break;
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}
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}
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if ($switch_done === 0) {
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$s = str_replace($mtch[0], $default, $s);
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}
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}
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}
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}
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$cnt = preg_match_all("/\[if (.*?)](.*?)\[else](.*?)\[\/if]/ism", $s, $matches, PREG_SET_ORDER);
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if ($cnt) {
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foreach ($matches as $mtch) {
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if ($this->test_condition($mtch[1])) {
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$s = str_replace($mtch[0], $mtch[2], $s);
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} else {
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$s = str_replace($mtch[0], $mtch[3], $s);
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}
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}
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} else {
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$cnt = preg_match_all("/\[if (.*?)](.*?)\[\/if]/ism", $s, $matches, PREG_SET_ORDER);
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if ($cnt) {
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foreach ($matches as $mtch) {
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if ($this->test_condition($mtch[1])) {
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$s = str_replace($mtch[0], $mtch[2], $s);
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} else {
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$s = str_replace($mtch[0], '', $s);
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}
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}
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}
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}
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if ($pass == 0) {
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$this->parse_pass0($s);
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} else {
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$this->parse_pass1($s);
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}
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}
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public function parse_pass0($s)
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{
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$matches = null;
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$cnt = preg_match("/\[layout](.*?)\[\/layout]/ism", $s, $matches);
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if ($cnt) {
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App::$page['template'] = trim($matches[1]);
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}
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$cnt = preg_match("/\[template=(.*?)](.*?)\[\/template]/ism", $s, $matches);
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if ($cnt) {
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App::$page['template'] = trim($matches[2]);
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App::$page['template_style'] = trim($matches[2]) . '_' . $matches[1];
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}
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$cnt = preg_match("/\[template](.*?)\[\/template]/ism", $s, $matches);
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if ($cnt) {
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App::$page['template'] = trim($matches[1]);
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}
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$cnt = preg_match("/\[theme=(.*?)](.*?)\[\/theme]/ism", $s, $matches);
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if ($cnt) {
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App::$layout['schema'] = trim($matches[1]);
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App::$layout['theme'] = trim($matches[2]);
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}
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$cnt = preg_match("/\[theme](.*?)\[\/theme]/ism", $s, $matches);
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if ($cnt) {
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App::$layout['theme'] = trim($matches[1]);
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}
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$cnt = preg_match("/\[navbar](.*?)\[\/navbar]/ism", $s, $matches);
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if ($cnt) {
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App::$layout['navbar'] = trim($matches[1]);
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}
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$cnt = preg_match_all("/\[webpage](.*?)\[\/webpage]/ism", $s, $matches, PREG_SET_ORDER);
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if ($cnt) {
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// only the last webpage definition is used if there is more than one
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foreach ($matches as $mtch) {
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App::$layout['webpage'] = $this->webpage($mtch[1]);
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}
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}
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}
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public function parse_pass1($s)
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{
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$cnt = preg_match_all("/\[region=(.*?)](.*?)\[\/region]/ism", $s, $matches, PREG_SET_ORDER);
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if ($cnt) {
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foreach ($matches as $mtch) {
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App::$layout['region_' . $mtch[1]] = $this->region($mtch[2], $mtch[1]);
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}
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}
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}
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/**
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* @brief Replace conditional variables with real values.
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*
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* Currently supported condition variables:
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* * $config.xxx.yyy - get_config with cat = xxx and k = yyy
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* * $request - request uri for this page
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* * $observer.language - viewer's preferred language (closest match)
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* * $observer.address - xchan_addr or false
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* * $observer.name - xchan_name or false
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* * $observer - xchan_hash of observer or empty string
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* * $local_channel - logged in channel_id or false
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*
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* @param string $v The conditional variable name
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* @return string|bool
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*/
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public function get_condition_var($v)
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{
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if ($v) {
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$x = explode('.', $v);
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if ($x[0] == 'config') {
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return get_config($x[1], $x[2]);
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} elseif ($x[0] === 'request') {
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return $_SERVER['REQUEST_URI'];
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} elseif ($x[0] === 'local_channel') {
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return local_channel();
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} elseif ($x[0] === 'observer') {
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if (count($x) > 1) {
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if ($x[1] == 'language') {
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return App::$language;
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}
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$y = App::get_observer();
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if (!$y) {
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return false;
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}
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if ($x[1] == 'address') {
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return $y['xchan_addr'];
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} elseif ($x[1] == 'name') {
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return $y['xchan_name'];
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} elseif ($x[1] == 'webname') {
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return substr($y['xchan_addr'], 0, strpos($y['xchan_addr'], '@'));
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}
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return false;
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}
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return get_observer_hash();
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} else {
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return false;
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}
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}
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return false;
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}
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/**
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* @brief Test for Conditional Execution conditions.
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*
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* This is extensible. The first version of variable testing supports tests of the forms:
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*
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* - [if $config.system.foo ~= baz] which will check if get_config('system','foo') contains the string 'baz';
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* - [if $config.system.foo == baz] which will check if get_config('system','foo') is the string 'baz';
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* - [if $config.system.foo != baz] which will check if get_config('system','foo') is not the string 'baz';
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* - [if $config.system.foo // baz] which will check if get_config('system','foo') matches the regular expression 'baz';
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* - [if $config.system.foo >= 3] which will check if get_config('system','foo') is greater than or equal to 3;
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* - [if $config.system.foo > 3] which will check if get_config('system','foo') is greater than 3;
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* - [if $config.system.foo <= 3] which will check if get_config('system','foo') is less than or equal to 3;
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* - [if $config.system.foo < 3] which will check if get_config('system','foo') is less than 3;
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*
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* - [if $config.system.foo {} baz] which will check if 'baz' is an array element in get_config('system','foo')
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* - [if $config.system.foo {*} baz] which will check if 'baz' is an array key in get_config('system','foo')
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* - [if $config.system.foo] which will check for a return of a true condition for get_config('system','foo');
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* - [if !$config.system.foo] which will check for a return of a false condition for get_config('system','foo');
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*
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* The values 0, '', an empty array, and an unset value will all evaluate to false.
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*
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* @param int|string $s
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* @return bool
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*/
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public function test_condition($s)
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{
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if (preg_match('/\$(.*?)\s~=\s(.*?)$/', $s, $matches)) {
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$x = $this->get_condition_var($matches[1]);
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if (stripos($x, trim($matches[2])) !== false) {
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return true;
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}
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return false;
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}
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if (preg_match('/\$(.*?)\s==\s(.*?)$/', $s, $matches)) {
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$x = $this->get_condition_var($matches[1]);
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if ($x == trim($matches[2])) {
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return true;
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}
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return false;
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}
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if (preg_match('/\$(.*?)\s!=\s(.*?)$/', $s, $matches)) {
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$x = $this->get_condition_var($matches[1]);
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if ($x != trim($matches[2])) {
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return true;
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}
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return false;
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}
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if (preg_match('/\$(.*?)\s\/\/\s(.*?)$/', $s, $matches)) {
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$x = $this->get_condition_var($matches[1]);
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if (substr($trim(matches[2]),0,1) !== substr(trim($matches[2]),-1)) {
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$matches[2] = '/' . trim($matches[2]) . '/';
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}
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if (preg_match(trim($matches[2]), $x)) {
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return true;
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}
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return false;
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}
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if (preg_match('/\$(.*?)\s>=\s(.*?)$/', $s, $matches)) {
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$x = $this->get_condition_var($matches[1]);
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if ($x >= trim($matches[2])) {
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return true;
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}
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return false;
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}
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if (preg_match('/\$(.*?)\s<=\s(.*?)$/', $s, $matches)) {
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$x = $this->get_condition_var($matches[1]);
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if ($x <= trim($matches[2])) {
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return true;
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}
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return false;
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}
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if (preg_match('/\$(.*?)\s>\s(.*?)$/', $s, $matches)) {
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$x = $this->get_condition_var($matches[1]);
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if ($x > trim($matches[2])) {
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return true;
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}
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return false;
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}
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if (preg_match('/\$(.*?)\s>\s(.*?)$/', $s, $matches)) {
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$x = $this->get_condition_var($matches[1]);
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if ($x < trim($matches[2])) {
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return true;
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}
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return false;
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}
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if (preg_match('/\$(.*?)\s\{}\s(.*?)$/', $s, $matches)) {
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$x = $this->get_condition_var($matches[1]);
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if (is_array($x) && in_array(trim($matches[2]), $x)) {
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return true;
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}
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return false;
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}
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if (preg_match('/\$(.*?)\s\{\*}\s(.*?)$/', $s, $matches)) {
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$x = $this->get_condition_var($matches[1]);
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if (is_array($x) && array_key_exists(trim($matches[2]), $x)) {
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return true;
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}
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return false;
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}
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if (preg_match('/!$(.*?)$/', $s, $matches)) {
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$x = $this->get_condition_var($matches[1]);
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if (!$x) {
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return true;
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}
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return false;
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}
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if (preg_match('/\$(.*?)$/', $s, $matches)) {
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$x = $this->get_condition_var($matches[1]);
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if ($x) {
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return true;
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}
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return false;
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}
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return false;
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}
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/**
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* @brief Return rendered menu for current channel_id.
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*
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* @param string $s
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* @param string $class (optional) default empty
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* @return string
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* @see menu_render()
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*/
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public function menu($s, $class = '')
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{
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$channel_id = $this->get_channel_id();
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$name = $s;
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$cnt = preg_match_all("/\[var=(.*?)](.*?)\[\/var]/ism", $s, $matches, PREG_SET_ORDER);
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if ($cnt) {
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foreach ($matches as $mtch) {
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$var[$mtch[1]] = $mtch[2];
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$name = str_replace($mtch[0], '', $name);
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}
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}
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if ($channel_id) {
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$m = Menu::fetch($name, $channel_id, get_observer_hash());
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return Menu::render($m, $class, $edit = false, $var);
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}
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return '';
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}
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public function replace_region($match)
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{
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if (array_key_exists($match[1], App::$page)) {
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return App::$page[$match[1]];
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}
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return '';
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}
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/**
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* @brief Returns the channel_id of the profile owner of the page.
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*
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* Returns the channel_id of the profile owner of the page, or the local_channel
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* if there is no profile owner. Otherwise returns 0.
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*
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* @return int channel_id
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*/
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public function get_channel_id()
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{
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$channel_id = ((is_array(App::$profile)) ? App::$profile['profile_uid'] : 0);
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if ((!$channel_id) && (local_channel())) {
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$channel_id = local_channel();
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}
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return $channel_id;
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}
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/**
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* @brief Returns a parsed block.
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*
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* @param string $s
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* @param string $class (optional) default empty
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* @return string parsed HTML of block
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*/
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public function block($s, $class = '')
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{
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$var = [];
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$matches = [];
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$name = $s;
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$class = (($class) ? $class : 'bblock widget');
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$cnt = preg_match_all("/\[var=(.*?)](.*?)\[\/var]/ism", $s, $matches, PREG_SET_ORDER);
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if ($cnt) {
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foreach ($matches as $mtch) {
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$var[$mtch[1]] = $mtch[2];
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$name = str_replace($mtch[0], '', $name);
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}
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}
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$o = '';
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$channel_id = $this->get_channel_id();
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if ($channel_id) {
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$r = q(
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"select * from item inner join iconfig on iconfig.iid = item.id and item.uid = %d
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and iconfig.cat = 'system' and iconfig.k = 'BUILDBLOCK' and iconfig.v = '%s' limit 1",
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intval($channel_id),
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dbesc($name)
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);
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if ($r) {
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//check for eventual menus in the block and parse them
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$cnt = preg_match_all("/\[menu](.*?)\[\/menu]/ism", $r[0]['body'], $matches, PREG_SET_ORDER);
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if ($cnt) {
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foreach ($matches as $mtch) {
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$r[0]['body'] = str_replace($mtch[0], $this->menu(trim($mtch[1])), $r[0]['body']);
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}
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}
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$cnt = preg_match_all("/\[menu=(.*?)](.*?)\[\/menu]/ism", $r[0]['body'], $matches, PREG_SET_ORDER);
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if ($cnt) {
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foreach ($matches as $mtch) {
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$r[0]['body'] = str_replace($mtch[0], $this->menu(trim($mtch[2]), $mtch[1]), $r[0]['body']);
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}
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}
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// emit the block
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$o .= (($var['wrap'] == 'none') ? '' : '<div class="' . $class . '">');
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if ($r[0]['title'] && trim($r[0]['body']) != '$content') {
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$o .= '<h3>' . $r[0]['title'] . '</h3>';
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}
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if (trim($r[0]['body']) === '$content') {
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$o .= App::$page['content'];
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} else {
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$o .= prepare_text($r[0]['body'], $r[0]['mimetype']);
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}
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$o .= (($var['wrap'] == 'none') ? '' : '</div>');
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}
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}
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return $o;
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}
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/**
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* @brief Include JS depending on framework.
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*
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* @param string $s
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* @return string
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*/
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public function js($s)
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{
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switch ($s) {
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case 'jquery':
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$path = 'view/js/jquery.js';
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break;
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case 'bootstrap':
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$path = 'vendor/twbs/bootstrap/dist/js/bootstrap.bundle.min.js';
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break;
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case 'foundation':
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$path = 'library/foundation/js/foundation.js';
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$init = "\r\n" . '<script>$(document).ready(function() { $(document).foundation(); });</script>';
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break;
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}
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$ret = '<script src="' . z_root() . '/' . $path . '" ></script>';
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if ($init) {
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$ret .= $init;
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}
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return $ret;
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}
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/**
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* @brief Include CSS depending on framework.
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*
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* @param string $s
|
|
* @return string
|
|
*/
|
|
public function css($s)
|
|
{
|
|
|
|
switch ($s) {
|
|
case 'bootstrap':
|
|
$path = 'vendor/twbs/bootstrap/dist/css/bootstrap.min.css';
|
|
break;
|
|
case 'foundation':
|
|
$path = 'library/foundation/css/foundation.min.css';
|
|
break;
|
|
}
|
|
|
|
$ret = '<link rel="stylesheet" href="' . z_root() . '/' . $path . '" type="text/css" media="screen">';
|
|
|
|
return $ret;
|
|
}
|
|
|
|
/**
|
|
* This doesn't really belong in Comanche, but it could also be argued that it is the perfect place.
|
|
* We need to be able to select what kind of template and decoration to use for the webpage at the heart of our content.
|
|
* For now we'll allow an '[authored]' element which defaults to name and date, or 'none' to remove these, and perhaps
|
|
* 'full' to provide a social network style profile photo.
|
|
*
|
|
* But leave it open to have richer templating options and perhaps ultimately discard this one, once we have a better idea
|
|
* of what template and webpage options we might desire.
|
|
*
|
|
* @param string $s
|
|
* @return array
|
|
*/
|
|
public function webpage($s)
|
|
{
|
|
$ret = [];
|
|
$matches = [];
|
|
|
|
$cnt = preg_match_all("/\[authored](.*?)\[\/authored]/ism", $s, $matches, PREG_SET_ORDER);
|
|
if ($cnt) {
|
|
foreach ($matches as $mtch) {
|
|
$ret['authored'] = $mtch[1];
|
|
}
|
|
}
|
|
|
|
return $ret;
|
|
}
|
|
|
|
/**
|
|
* @brief Render a widget.
|
|
*
|
|
* @param string $name
|
|
* @param string $text
|
|
*/
|
|
public function widget($name, $text)
|
|
{
|
|
$vars = [];
|
|
$matches = [];
|
|
|
|
$cnt = preg_match_all("/\[var=(.*?)](.*?)\[\/var]/ism", $text, $matches, PREG_SET_ORDER);
|
|
if ($cnt) {
|
|
foreach ($matches as $mtch) {
|
|
$vars[$mtch[1]] = $mtch[2];
|
|
}
|
|
}
|
|
|
|
if (!purify_filename($name)) {
|
|
return '';
|
|
}
|
|
|
|
$clsname = ucfirst($name);
|
|
$nsname = "\\Code\\Widget\\" . $clsname;
|
|
|
|
$found = false;
|
|
$widgets = Widget::get();
|
|
if ($widgets) {
|
|
foreach ($widgets as $widget) {
|
|
if (is_array($widget) && strtolower($widget[1]) === strtolower($name) && file_exists($widget[0])) {
|
|
require_once($widget[0]);
|
|
$found = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!$found) {
|
|
if (file_exists('Code/SiteWidget/' . $clsname . '.php')) {
|
|
require_once('Code/SiteWidget/' . $clsname . '.php');
|
|
} elseif (file_exists('widget/' . $clsname . '/' . $clsname . '.php')) {
|
|
require_once('widget/' . $clsname . '/' . $clsname . '.php');
|
|
} elseif (file_exists('Code/Widget/' . $clsname . '.php')) {
|
|
require_once('Code/Widget/' . $clsname . '.php');
|
|
} else {
|
|
$pth = Theme::include($clsname . '.php');
|
|
if ($pth) {
|
|
require_once($pth);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (class_exists($nsname)) {
|
|
$x = new $nsname();
|
|
$f = 'widget';
|
|
if (method_exists($x, $f)) {
|
|
return $x->$f($vars);
|
|
}
|
|
}
|
|
|
|
$func = 'widget_' . trim($name);
|
|
|
|
if (!function_exists($func)) {
|
|
if (file_exists('widget/' . trim($name) . '.php')) {
|
|
require_once('widget/' . trim($name) . '.php');
|
|
} elseif (file_exists('widget/' . trim($name) . '/' . trim($name) . '.php')) {
|
|
require_once('widget/' . trim($name) . '/' . trim($name) . '.php');
|
|
}
|
|
if (!function_exists($func)) {
|
|
$theme_widget = $func . '.php';
|
|
if (Theme::include($theme_widget)) {
|
|
require_once(Theme::include($theme_widget));
|
|
}
|
|
}
|
|
}
|
|
|
|
if (function_exists($func)) {
|
|
return $func($vars);
|
|
}
|
|
return '';
|
|
}
|
|
|
|
|
|
public function region($s, $region_name)
|
|
{
|
|
|
|
$s = str_replace('$region', $region_name, $s);
|
|
|
|
$matches = [];
|
|
|
|
$cnt = preg_match_all("/\[menu](.*?)\[\/menu]/ism", $s, $matches, PREG_SET_ORDER);
|
|
if ($cnt) {
|
|
foreach ($matches as $mtch) {
|
|
$s = str_replace($mtch[0], $this->menu(trim($mtch[1])), $s);
|
|
}
|
|
}
|
|
|
|
// menu class e.g. [menu=horizontal]my_menu[/menu] or [menu=tabbed]my_menu[/menu]
|
|
// allows different menu renderings to be applied
|
|
|
|
$cnt = preg_match_all("/\[menu=(.*?)](.*?)\[\/menu]/ism", $s, $matches, PREG_SET_ORDER);
|
|
if ($cnt) {
|
|
foreach ($matches as $mtch) {
|
|
$s = str_replace($mtch[0], $this->menu(trim($mtch[2]), $mtch[1]), $s);
|
|
}
|
|
}
|
|
$cnt = preg_match_all("/\[block](.*?)\[\/block]/ism", $s, $matches, PREG_SET_ORDER);
|
|
if ($cnt) {
|
|
foreach ($matches as $mtch) {
|
|
$s = str_replace($mtch[0], $this->block(trim($mtch[1])), $s);
|
|
}
|
|
}
|
|
|
|
$cnt = preg_match_all("/\[block=(.*?)](.*?)\[\/block]/ism", $s, $matches, PREG_SET_ORDER);
|
|
if ($cnt) {
|
|
foreach ($matches as $mtch) {
|
|
$s = str_replace($mtch[0], $this->block(trim($mtch[2]), trim($mtch[1])), $s);
|
|
}
|
|
}
|
|
|
|
$cnt = preg_match_all("/\[js](.*?)\[\/js]/ism", $s, $matches, PREG_SET_ORDER);
|
|
if ($cnt) {
|
|
foreach ($matches as $mtch) {
|
|
$s = str_replace($mtch[0], $this->js(trim($mtch[1])), $s);
|
|
}
|
|
}
|
|
|
|
$cnt = preg_match_all("/\[css](.*?)\[\/css]/ism", $s, $matches, PREG_SET_ORDER);
|
|
if ($cnt) {
|
|
foreach ($matches as $mtch) {
|
|
$s = str_replace($mtch[0], $this->css(trim($mtch[1])), $s);
|
|
}
|
|
}
|
|
|
|
$cnt = preg_match_all("/\[widget=(.*?)](.*?)\[\/widget]/ism", $s, $matches, PREG_SET_ORDER);
|
|
if ($cnt) {
|
|
foreach ($matches as $mtch) {
|
|
$s = str_replace($mtch[0], $this->widget(trim($mtch[1]), $mtch[2]), $s);
|
|
}
|
|
}
|
|
|
|
return $s;
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief Registers a page template/variant for use by Comanche selectors.
|
|
*
|
|
* @param array $arr
|
|
* 'template' => template name
|
|
* 'variant' => array(
|
|
* 'name' => variant name
|
|
* 'desc' => text description
|
|
* 'regions' => array(
|
|
* 'name' => name
|
|
* 'desc' => text description
|
|
* )
|
|
* )
|
|
*/
|
|
public function register_page_template($arr)
|
|
{
|
|
App::$layout[$arr['template']] = [$arr['variant']];
|
|
return;
|
|
}
|
|
}
|