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684 lines
18 KiB
PHP
684 lines
18 KiB
PHP
<?php /** @file */
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namespace Zotlabs\Render;
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use App;
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require_once('include/security.php');
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require_once('include/menu.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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function parse($s, $pass = 0) {
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$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], $s);
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}
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else {
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$s = str_replace($mtch[0], $mtch[3], $s);
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}
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}
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}
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else {
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$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], $s);
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}
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else {
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$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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}
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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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function parse_pass0($s) {
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$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'] = $this->webpage($a,$mtch[1]);
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}
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}
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}
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function parse_pass1($s) {
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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 $v The conditional variable name
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* @return string|boolean
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*/
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function get_condition_var($v) {
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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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}
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elseif ($x[0] === 'request') {
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return $_SERVER['REQUEST_URI'];
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}
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elseif ($x[0] === 'local_channel') {
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return local_channel();
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}
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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 $y['xchan_addr'];
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}
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elseif ($x[1] == 'name') {
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return $y['xchan_name'];
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}
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elseif ($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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}
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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 >= 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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*
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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 $s
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* @return boolean
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*/
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function test_condition($s) {
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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 ($x >= trim($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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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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* @see menu_render()
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* @param string $s
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* @param string $class (optional) default empty
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* @return string
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*/
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function menu($s, $class = '') {
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$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, $var);
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}
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}
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function replace_region($match) {
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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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}
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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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function get_channel_id() {
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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 $class (optional) default empty
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* @return string parsed HTML of block
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*/
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function block($s, $class = '') {
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$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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$r = q("select * from item inner join iconfig on iconfig.iid = item.id and item.uid = %d
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and iconfig.cat = 'system' and iconfig.k = 'BUILDBLOCK' and iconfig.v = '%s' limit 1",
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intval($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::$page['content'];
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}
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else {
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$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 $s
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* @return string
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*/
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function js($s) {
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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 $s
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* @return string
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*/
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function css($s) {
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switch ($s) {
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case 'bootstrap':
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$path = 'vendor/twbs/bootstrap/dist/css/bootstrap.min.css';
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break;
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case 'foundation':
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$path = 'library/foundation/css/foundation.min.css';
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break;
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}
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$ret = '<link rel="stylesheet" href="' . z_root() . '/' . $path . '" type="text/css" media="screen">';
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return $ret;
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}
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/**
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* This doesn't really belong in Comanche, but it could also be argued that it is the perfect place.
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* We need to be able to select what kind of template and decoration to use for the webpage at the heart of our content.
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* For now we'll allow an '[authored]' element which defaults to name and date, or 'none' to remove these, and perhaps
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* 'full' to provide a social network style profile photo.
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*
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* But leave it open to have richer templating options and perhaps ultimately discard this one, once we have a better idea
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* of what template and webpage options we might desire.
|
|
*
|
|
* @param[in,out] array $a
|
|
* @param string $s
|
|
* @return array
|
|
*/
|
|
function webpage(&$a, $s) {
|
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$ret = [];
|
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$matches = [];
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|
|
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$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 $text
|
|
*/
|
|
function widget($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 = "\\Zotlabs\\Widget\\" . $clsname;
|
|
|
|
$found = false;
|
|
$widgets = \Zotlabs\Extend\Widget::get();
|
|
if ($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('Zotlabs/SiteWidget/' . $clsname . '.php')) {
|
|
require_once('Zotlabs/SiteWidget/' . $clsname . '.php');
|
|
}
|
|
elseif (file_exists('widget/' . $clsname . '/' . $clsname . '.php')) {
|
|
require_once('widget/' . $clsname . '/' . $clsname . '.php');
|
|
}
|
|
elseif (file_exists('Zotlabs/Widget/' . $clsname . '.php')) {
|
|
require_once('Zotlabs/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);
|
|
}
|
|
}
|
|
|
|
|
|
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 $arr
|
|
* 'template' => template name
|
|
* 'variant' => array(
|
|
* 'name' => variant name
|
|
* 'desc' => text description
|
|
* 'regions' => array(
|
|
* 'name' => name
|
|
* 'desc' => text description
|
|
* )
|
|
* )
|
|
*/
|
|
function register_page_template($arr) {
|
|
App::$page_layouts[$arr['template']] = array($arr['variant']);
|
|
return;
|
|
}
|
|
|
|
}
|