Template::checkDisableAJAX() - Code Metrics - Inspection of "Remove global variables" - smrealms/smr - Measure and Improve Code Quality continuously with Scrutinizer

Failed Conditions

Pull Request — master (#1038)

by Dan

created 2021-04-11 12:29 UTC

Template::checkDisableAJAX() A

↳ Parent: Template

Complexity

Conditions	1
Paths	1

Size

Total Lines	2
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	1
nc	1
nop	1
dl	0
loc	2
rs	10
c	0
b	0
f	0

<?php declare(strict_types=1);

namespace Smr;

use DOMDocument;
use DOMNode;
use DOMXpath;
use Exception;
use Globals;
use Smr\Container\DiContainer;
use Smr\Session;
use SmrAccount;

class Template {
	private $data = array();
	private $ignoreMiddle = false;
	private $nestedIncludes = 0;
	private $ajaxJS = array();
	protected $jsAlerts = array();
	private $displayCalled = false;
	private $listjsInclude = null;
	private $jsSources = [];

	/**
	 * Return the Smr\Template in the DI container.
	 * If one does not exist yet, it will be created.
	 * This is the intended way to construct this class.
	 */
	public static function getInstance() : self {
		return DiContainer::get(self::class);
	}

	public function __destruct() {
		if (!$this->displayCalled && !empty($this->data)) {
			error_log('Template destroyed before displaying the following assigned keys: ' . join(', ', array_keys($this->data)));
		}
	}

	public function hasTemplateVar($var) {
		return isset($this->data[$var]);
	}

	public function assign($var, $value) {
		if (!isset($this->data[$var])) {
			$this->data[$var] = $value;
		} else {
			// We insist that template variables not change once they are set
			throw new Exception("Cannot re-assign template variable '$var'!");
		}
	}

	public function unassign($var) {
		unset($this->data[$var]);
	}

	/**
	 * Displays the template HTML. Stores any ajax-enabled elements for future
	 * comparison, and outputs modified elements in XML for ajax if requested.
	 */
	public function display($templateName, $outputXml = false) {
		// If we already started output buffering before calling `display`,
		// we may have unwanted content in the buffer that we need to remove
		// before we send the Content-Type headers below.
		// Skip this for debug builds to help discover offending output.
		if (!ENABLE_DEBUG) {
			if (ob_get_length() > 0) {
				ob_clean();
			}
		}
		ob_start();
		$this->includeTemplate($templateName);
		$output = ob_get_clean();

		$ajaxEnabled = ($this->data['AJAX_ENABLE_REFRESH'] ?? false) !== false;
		if ($ajaxEnabled) {
			$ajaxXml = $this->convertHtmlToAjaxXml($output, $outputXml);
			if ($outputXml) {
				/* Left out for size: <?xml version="1.0" encoding="ISO-8859-1"?>*/
				$output = '<all>' . $ajaxXml . '</all>';
			}
			$session = Session::getInstance();
			$session->saveAjaxReturns();
		}

		// Now that we are completely done processing, we can output
		if ($outputXml) {
			header('Content-Type: text/xml; charset=utf-8');
		} else {
			header('Content-Type: text/html; charset=utf-8');
		}
		echo $output;

		// Record that display was called for error-checking in dtor
		$this->displayCalled = true;
	}


	protected function getTemplateLocation($templateName) {
		$templateDir = TEMPLATES_DIR;
		if (isset($this->data['ThisAccount']) && is_object($this->data['ThisAccount']) && $this->data['ThisAccount'] instanceof SmrAccount) {
			$templateDir .= $this->data['ThisAccount']->getTemplate() . '/';
		} else {
			$templateDir .= 'Default/';
		}

		$session = Session::getInstance();
		if ($session->hasGame()) {
			$gameDir = Globals::getGameType($session->getGameID()) . '/';
		} else {
			$gameDir = 'Default/';
		}

		if (file_exists($templateDir . 'engine/' . $gameDir . $templateName)) {
			return $templateDir . 'engine/' . $gameDir . $templateName;
		} elseif (file_exists($templateDir . 'engine/Default/' . $templateName)) {
			return $templateDir . 'engine/Default/' . $templateName;
		} elseif (file_exists(TEMPLATES_DIR . 'Default/engine/' . $gameDir . $templateName)) {
			return TEMPLATES_DIR . 'Default/engine/' . $gameDir . $templateName;
		} elseif (file_exists(TEMPLATES_DIR . 'Default/engine/Default/' . $templateName)) {
			return TEMPLATES_DIR . 'Default/engine/Default/' . $templateName;
		} elseif (file_exists($templateDir . 'admin/' . $gameDir . $templateName)) {
			return $templateDir . 'admin/' . $gameDir . $templateName;
		} elseif (file_exists($templateDir . 'admin/Default/' . $templateName)) {
			return $templateDir . 'admin/Default/' . $templateName;
		} elseif (file_exists(TEMPLATES_DIR . 'Default/admin/' . $gameDir . $templateName)) {
			return TEMPLATES_DIR . 'Default/admin/' . $gameDir . $templateName;
		} elseif (file_exists(TEMPLATES_DIR . 'Default/admin/Default/' . $templateName)) {
			return TEMPLATES_DIR . 'Default/admin/Default/' . $templateName;
		} elseif (file_exists($templateDir . $templateName)) {
			return $templateDir . $templateName;
		} elseif (file_exists(TEMPLATES_DIR . 'Default/' . $templateName)) {
			return TEMPLATES_DIR . 'Default/' . $templateName;
		} else {
			throw new Exception('No template found for ' . $templateName);
		}
	}

	protected function includeTemplate($templateName, array $assignVars = null) {
		if ($this->nestedIncludes > 15) {
			throw new Exception('Nested more than 15 template includes, is something wrong?');
		}
		foreach ($this->data as $key => $value) {
			$$key = $value;
		}
		if ($assignVars !== null) {
			foreach ($assignVars as $key => $value) {
				$$key = $value;
			}
		}
		$this->nestedIncludes++;
		require($this->getTemplateLocation($templateName));
		$this->nestedIncludes--;
	}

	protected function checkDisableAJAX($html) {
		return preg_match('/<input' . '[^>]*' . '[^(submit)(hidden)(image)]' . '[^>]*' . '>/i', $html) != 0;
	}

	protected function doDamageTypeReductionDisplay(&$damageTypes) {
		if ($damageTypes == 3) {
			echo ', ';
		} elseif ($damageTypes == 2) {
			echo ' and ';
		}
		$damageTypes--;
	}

	protected function doAn($wordAfter) {
		$char = strtoupper($wordAfter[0]);
		if ($char == 'A' || $char == 'E' || $char == 'I' || $char == 'O' || $char == 'U') {
			echo 'an';
		} else {
			echo 'a';
		}
	}

	/**
	 * Sets a listjs_include.js function to call at the end of the HTML body.
	 */
	public function setListjsInclude($func) {
		$this->listjsInclude = $func;
	}

	/*
	 * EVAL is special (well, will be when needed and implemented in the javascript).
	 */
	public function addJavascriptForAjax($varName, $obj) {
		if ($varName == 'EVAL') {
			if (!isset($this->ajaxJS['EVAL'])) {
				return $this->ajaxJS['EVAL'] = $obj;
			}
			return $this->ajaxJS['EVAL'] .= ';' . $obj;
		}

		if (isset($this->ajaxJS[$varName])) {
			throw new Exception('Trying to set javascript val twice: ' . $varName);
		}
		return $this->ajaxJS[$varName] = json_encode($obj);
	}

	protected function addJavascriptAlert($string) {
		$session = Session::getInstance();
		if (!$session->addAjaxReturns('ALERT:' . $string, $string)) {
			$this->jsAlerts[] = $string;
		}
	}

	/**
	 * Registers a JS target for inclusion at the end of the HTML body.
	 */
	protected function addJavascriptSource($src) {
		array_push($this->jsSources, $src);
	}

	protected function convertHtmlToAjaxXml($str, $returnXml) {
		if (empty($str)) {
			return '';
		}

		$session = Session::getInstance();

		// To get inner html, we need to construct a separate DOMDocument.
		// See PHP Bug #76285.
		$getInnerHTML = function(DOMNode $node) {
			$dom = new DOMDocument();
			$dom->formatOutput = false;
			foreach ($node->childNodes as $child) {
				$dom->appendChild($dom->importNode($child, true));
			}
			// Trim to remove trailing newlines
			return trim(@$dom->saveHTML());
		};

		$xml = '';
		$dom = new DOMDocument();
		$dom->loadHTML($str);
		$xpath = new DOMXpath($dom);
		$ajaxSelectors = array('//span[@id]', '//*[contains(@class,"ajax")]');
		foreach ($ajaxSelectors as $selector) {
			$matchNodes = $xpath->query($selector);
			foreach ($matchNodes as $node) {
				$id = $node->getAttribute('id');
				$inner = $getInnerHTML($node);
				if (!$session->addAjaxReturns($id, $inner) && $returnXml) {
					$xml .= '<' . $id . '>' . xmlify($inner) . '</' . $id . '>';
				}
			}
		}

		if (!$this->ignoreMiddle) {
			$mid = $dom->getElementById('middle_panel');

			$doAjaxMiddle = true;
			if ($mid === null) {
				// Skip if there is no middle_panel.
				$doAjaxMiddle = false;
			} else {
				// Skip if middle_panel has ajax-enabled children.
				$domMid = new DOMDocument();
				$domMid->appendChild($domMid->importNode($mid, true));
				$xpathMid = new DOMXpath($domMid);
				foreach ($ajaxSelectors as $selector) {
					if (count($xpathMid->query($selector)) > 0) {
						$doAjaxMiddle = false;
						break;
					}
				}
			}

			if ($doAjaxMiddle) {
				$inner = $getInnerHTML($mid);
				if (!$this->checkDisableAJAX($inner)) {
					$id = $mid->getAttribute('id');
					if (!$session->addAjaxReturns($id, $inner) && $returnXml) {
						$xml .= '<' . $id . '>' . xmlify($inner) . '</' . $id . '>';
					}
				}
			}
		}

		$js = '';
		foreach ($this->ajaxJS as $varName => $JSON) {
			if (!$session->addAjaxReturns('JS:' . $varName, $JSON) && $returnXml) {
				$js .= '<' . $varName . '>' . xmlify($JSON) . '</' . $varName . '>';
			}
		}
		if ($returnXml && count($this->jsAlerts) > 0) {
			$js = '<ALERT>' . json_encode($this->jsAlerts) . '</ALERT>';
		}
		if (strlen($js) > 0) {
			$xml .= '<JS>' . $js . '</JS>';
		}
		return $xml;
	}

	public function ignoreMiddle() {
		$this->ignoreMiddle = true;
	}
}


1			<?php declare(strict_types=1);
2
3			namespace Smr;
4
5			use DOMDocument;
6			use DOMNode;
7			use DOMXpath;
8			use Exception;
9			use Globals;
10			use Smr\Container\DiContainer;
11			use Smr\Session;
12			use SmrAccount;
13
14			class Template {
15			private $data = array();
16			private $ignoreMiddle = false;
17			private $nestedIncludes = 0;
18			private $ajaxJS = array();
19			protected $jsAlerts = array();
20			private $displayCalled = false;
21			private $listjsInclude = null;
22			private $jsSources = [];
23
24			/**
25			* Return the Smr\Template in the DI container.
26			* If one does not exist yet, it will be created.
27			* This is the intended way to construct this class.
28			*/
29			public static function getInstance() : self {
30			return DiContainer::get(self::class);
31			}
32
33			public function __destruct() {
34			if (!$this->displayCalled && !empty($this->data)) {
35			error_log('Template destroyed before displaying the following assigned keys: ' . join(', ', array_keys($this->data)));
36			}
37			}
38
39			public function hasTemplateVar($var) {
40			return isset($this->data[$var]);
41			}
42
43			public function assign($var, $value) {
44			if (!isset($this->data[$var])) {
45			$this->data[$var] = $value;
46			} else {
47			// We insist that template variables not change once they are set
48			throw new Exception("Cannot re-assign template variable '$var'!");
49			}
50			}
51
52			public function unassign($var) {
53			unset($this->data[$var]);
54			}
55
56			/**
57			* Displays the template HTML. Stores any ajax-enabled elements for future
58			* comparison, and outputs modified elements in XML for ajax if requested.
59			*/
60			public function display($templateName, $outputXml = false) {
61			// If we already started output buffering before calling `display`,
62			// we may have unwanted content in the buffer that we need to remove
63			// before we send the Content-Type headers below.
64			// Skip this for debug builds to help discover offending output.
65			if (!ENABLE_DEBUG) {
66			if (ob_get_length() > 0) {
67			ob_clean();
68			}
69			}
70			ob_start();
71			$this->includeTemplate($templateName);
72			$output = ob_get_clean();
73
74			$ajaxEnabled = ($this->data['AJAX_ENABLE_REFRESH'] ?? false) !== false;
75			if ($ajaxEnabled) {
76			$ajaxXml = $this->convertHtmlToAjaxXml($output, $outputXml);
77			if ($outputXml) {
78			/* Left out for size: <?xml version="1.0" encoding="ISO-8859-1"?>*/
79			$output = '<all>' . $ajaxXml . '</all>';
80			}
81			$session = Session::getInstance();
82			$session->saveAjaxReturns();
83			}
84
85			// Now that we are completely done processing, we can output
86			if ($outputXml) {
87			header('Content-Type: text/xml; charset=utf-8');
88			} else {
89			header('Content-Type: text/html; charset=utf-8');
90			}
91			echo $output;
92
93			// Record that display was called for error-checking in dtor
94			$this->displayCalled = true;
95			}
96
97
98			protected function getTemplateLocation($templateName) {
99			$templateDir = TEMPLATES_DIR;
100			if (isset($this->data['ThisAccount']) && is_object($this->data['ThisAccount']) && $this->data['ThisAccount'] instanceof SmrAccount) {
101			$templateDir .= $this->data['ThisAccount']->getTemplate() . '/';
102			} else {
103			$templateDir .= 'Default/';
104			}
105
106			$session = Session::getInstance();
107			if ($session->hasGame()) {
108			$gameDir = Globals::getGameType($session->getGameID()) . '/';
109			} else {
110			$gameDir = 'Default/';
111			}
112
113			if (file_exists($templateDir . 'engine/' . $gameDir . $templateName)) {
114			return $templateDir . 'engine/' . $gameDir . $templateName;
115			} elseif (file_exists($templateDir . 'engine/Default/' . $templateName)) {
116			return $templateDir . 'engine/Default/' . $templateName;
117			} elseif (file_exists(TEMPLATES_DIR . 'Default/engine/' . $gameDir . $templateName)) {
118			return TEMPLATES_DIR . 'Default/engine/' . $gameDir . $templateName;
119			} elseif (file_exists(TEMPLATES_DIR . 'Default/engine/Default/' . $templateName)) {
120			return TEMPLATES_DIR . 'Default/engine/Default/' . $templateName;
121			} elseif (file_exists($templateDir . 'admin/' . $gameDir . $templateName)) {
122			return $templateDir . 'admin/' . $gameDir . $templateName;
123			} elseif (file_exists($templateDir . 'admin/Default/' . $templateName)) {
124			return $templateDir . 'admin/Default/' . $templateName;
125			} elseif (file_exists(TEMPLATES_DIR . 'Default/admin/' . $gameDir . $templateName)) {
126			return TEMPLATES_DIR . 'Default/admin/' . $gameDir . $templateName;
127			} elseif (file_exists(TEMPLATES_DIR . 'Default/admin/Default/' . $templateName)) {
128			return TEMPLATES_DIR . 'Default/admin/Default/' . $templateName;
129			} elseif (file_exists($templateDir . $templateName)) {
130			return $templateDir . $templateName;
131			} elseif (file_exists(TEMPLATES_DIR . 'Default/' . $templateName)) {
132			return TEMPLATES_DIR . 'Default/' . $templateName;
133			} else {
134			throw new Exception('No template found for ' . $templateName);
135			}
136			}
137
138			protected function includeTemplate($templateName, array $assignVars = null) {
139			if ($this->nestedIncludes > 15) {
140			throw new Exception('Nested more than 15 template includes, is something wrong?');
141			}
142			foreach ($this->data as $key => $value) {
143			$$key = $value;
144			}
145			if ($assignVars !== null) {
146			foreach ($assignVars as $key => $value) {
147			$$key = $value;
148			}
149			}
150			$this->nestedIncludes++;
151			require($this->getTemplateLocation($templateName));
152			$this->nestedIncludes--;
153			}
154
155			protected function checkDisableAJAX($html) {
156			return preg_match('/<input' . '[^>]' . '[^(submit)(hidden)(image)]' . '[^>]' . '>/i', $html) != 0;
157			}
158
159			protected function doDamageTypeReductionDisplay(&$damageTypes) {
160			if ($damageTypes == 3) {
161			echo ', ';
162			} elseif ($damageTypes == 2) {
163			echo ' and ';
164			}
165			$damageTypes--;
166			}
167
168			protected function doAn($wordAfter) {
169			$char = strtoupper($wordAfter[0]);
170			if ($char == 'A' \|\| $char == 'E' \|\| $char == 'I' \|\| $char == 'O' \|\| $char == 'U') {
171			echo 'an';
172			} else {
173			echo 'a';
174			}
175			}
176
177			/**
178			* Sets a listjs_include.js function to call at the end of the HTML body.
179			*/
180			public function setListjsInclude($func) {
181			$this->listjsInclude = $func;
182			}
183
184			/*
185			* EVAL is special (well, will be when needed and implemented in the javascript).
186			*/
187			public function addJavascriptForAjax($varName, $obj) {
188			if ($varName == 'EVAL') {
189			if (!isset($this->ajaxJS['EVAL'])) {
190			return $this->ajaxJS['EVAL'] = $obj;
191			}
192			return $this->ajaxJS['EVAL'] .= ';' . $obj;
193			}
194
195			if (isset($this->ajaxJS[$varName])) {
196			throw new Exception('Trying to set javascript val twice: ' . $varName);
197			}
198			return $this->ajaxJS[$varName] = json_encode($obj);
199			}
200
201			protected function addJavascriptAlert($string) {
202			$session = Session::getInstance();
203			if (!$session->addAjaxReturns('ALERT:' . $string, $string)) {
204			$this->jsAlerts[] = $string;
205			}
206			}
207
208			/**
209			* Registers a JS target for inclusion at the end of the HTML body.
210			*/
211			protected function addJavascriptSource($src) {
212			array_push($this->jsSources, $src);
213			}
214
215			protected function convertHtmlToAjaxXml($str, $returnXml) {
216			if (empty($str)) {
217			return '';
218			}
219
220			$session = Session::getInstance();
221
222			// To get inner html, we need to construct a separate DOMDocument.
223			// See PHP Bug #76285.
224			$getInnerHTML = function(DOMNode $node) {
225			$dom = new DOMDocument();
226			$dom->formatOutput = false;
227			foreach ($node->childNodes as $child) {
228			$dom->appendChild($dom->importNode($child, true));
229			}
230			// Trim to remove trailing newlines
231			return trim(@$dom->saveHTML());
232			};
233
234			$xml = '';
235			$dom = new DOMDocument();
236			$dom->loadHTML($str);
237			$xpath = new DOMXpath($dom);
238			$ajaxSelectors = array('//span[@id]', '//*[contains(@class,"ajax")]');
239			foreach ($ajaxSelectors as $selector) {
240			$matchNodes = $xpath->query($selector);
241			foreach ($matchNodes as $node) {
242			$id = $node->getAttribute('id');
243			$inner = $getInnerHTML($node);
244			if (!$session->addAjaxReturns($id, $inner) && $returnXml) {
245			$xml .= '<' . $id . '>' . xmlify($inner) . '</' . $id . '>';
246			}
247			}
248			}
249
250			if (!$this->ignoreMiddle) {
251			$mid = $dom->getElementById('middle_panel');
252
253			$doAjaxMiddle = true;
254			if ($mid === null) {
255			// Skip if there is no middle_panel.
256			$doAjaxMiddle = false;
257			} else {
258			// Skip if middle_panel has ajax-enabled children.
259			$domMid = new DOMDocument();
260			$domMid->appendChild($domMid->importNode($mid, true));
261			$xpathMid = new DOMXpath($domMid);
262			foreach ($ajaxSelectors as $selector) {
263			if (count($xpathMid->query($selector)) > 0) {
264			$doAjaxMiddle = false;
265			break;
266			}
267			}
268			}
269
270			if ($doAjaxMiddle) {
271			$inner = $getInnerHTML($mid);
272			if (!$this->checkDisableAJAX($inner)) {
273			$id = $mid->getAttribute('id');
274			if (!$session->addAjaxReturns($id, $inner) && $returnXml) {
275			$xml .= '<' . $id . '>' . xmlify($inner) . '</' . $id . '>';
276			}
277			}
278			}
279			}
280
281			$js = '';
282			foreach ($this->ajaxJS as $varName => $JSON) {
283			if (!$session->addAjaxReturns('JS:' . $varName, $JSON) && $returnXml) {
284			$js .= '<' . $varName . '>' . xmlify($JSON) . '</' . $varName . '>';
285			}
286			}
287			if ($returnXml && count($this->jsAlerts) > 0) {
288			$js = '<ALERT>' . json_encode($this->jsAlerts) . '</ALERT>';
289			}
290			if (strlen($js) > 0) {
291			$xml .= '<JS>' . $js . '</JS>';
292			}
293			return $xml;
294			}
295
296			public function ignoreMiddle() {
297			$this->ignoreMiddle = true;
298			}
299			}
300

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Pull Request — master (#1038)

Template::checkDisableAJAX() A

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