16116: Lack of freetype support : no CAPTCHA and no alert - LimeSurvey bugs and feature requests

This bug affects 1 person(s).

ID	Project	Category	View Status	Date Submitted	Last Update

16116	Bug reports	Other	public	2020-04-08 13:06	2025-11-14 16:52

Reporter	Mojon	Assigned To	c_schmitz
Priority	none	Severity	minor
Status	resolved	Resolution	fixed
Product Version	4.1.16

Summary	16116: Lack of freetype support : no CAPTCHA and no alert
Description	Small problem with CAPTCHA New Installation. Installed this time by Installatron > hosting platform. First survey, I added CAPTCHA usage. However, I don't see the CAPTCHA field in the survey preview See attachment At php.info GD Support: enabled GD Version: bundled (2.1.0 compatible) LimeSurvey Ver 4.1.15+200402 Update, LimeSurvey Ver 4.1.16, but still the same :( Please see at https://www.limesurvey.org/forum/design-issues/120768-captcha#196609
Additional Information	Please see at https://www.limesurvey.org/forum/design-issues/120768-captcha#196609
Tags	No tags attached.
Attached Files	survey_IE.png (15,451 bytes) survey_IE.png (15,451 bytes) survey.png (23,598 bytes) survey.png (23,598 bytes)

Bug heat	8
Complete LimeSurvey version number (& build)	4.1.16+200407
I will donate to the project if issue is resolved	No
Browser	IE, Opera, FF, Chrome
Database type & version	5.7.27
Server OS (if known)	Linux
Webserver software & version (if known)
PHP Version	7.4.3

User List	There are no users monitoring this issue.

Mojon 2020-04-09 14:28 reporter ~57056	Debug mode on. Call to undefined function imagettfbbox() Error.htm (16,214 bytes) <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title>Error</title> <style type="text/css"> /<![CDATA[/ html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,acronym,address,big,cite,code,del,dfn,em,font,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,b,u,i,center,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td{border:0;outline:0;font-size:100%;vertical-align:baseline;background:transparent;margin:0;padding:0;} body{line-height:1;} ol,ul{list-style:none;} blockquote,q{quotes:none;} blockquote:before,blockquote:after,q:before,q:after{content:none;} :focus{outline:0;} ins{text-decoration:none;} del{text-decoration:line-through;} table{border-collapse:collapse;border-spacing:0;} body { font: normal 9pt "Verdana"; color: #000; background: #fff; } h1 { font: normal 18pt "Verdana"; color: #f00; margin-bottom: .5em; } h2 { font: normal 14pt "Verdana"; color: #800000; margin-bottom: .5em; } h3 { font: bold 11pt "Verdana"; } pre { font: normal 11pt Menlo, Consolas, "Lucida Console", Monospace; } pre span.error { display: block; background: #fce3e3; } pre span.ln { color: #999; padding-right: 0.5em; border-right: 1px solid #ccc; } pre span.error-ln { font-weight: bold; } .container { margin: 1em 4em; } .version { color: gray; font-size: 8pt; border-top: 1px solid #aaa; padding-top: 1em; margin-bottom: 1em; } .message { color: #000; padding: 1em; font-size: 11pt; background: #f3f3f3; -webkit-border-radius: 10px; -moz-border-radius: 10px; border-radius: 10px; margin-bottom: 1em; line-height: 160%; } .source { margin-bottom: 1em; } .code pre { background-color: #ffe; margin: 0.5em 0; padding: 0.5em; line-height: 125%; border: 1px solid #eee; } .source .file { margin-bottom: 1em; font-weight: bold; } .traces { margin: 2em 0; } .trace { margin: 0.5em 0; padding: 0.5em; } .trace.app { border: 1px dashed #c00; } .trace .number { text-align: right; width: 2em; padding: 0.5em; } .trace .content { padding: 0.5em; } .trace .plus, .trace .minus { display:inline; vertical-align:middle; text-align:center; border:1px solid #000; color:#000; font-size:10px; line-height:10px; margin:0; padding:0 1px; width:10px; height:10px; } .trace.collapsed .minus, .trace.expanded .plus, .trace.collapsed pre { display: none; } .trace-file { cursor: pointer; padding: 0.2em; } .trace-file:hover { background: #f0ffff; } /]]>/ </style> </head> <body> <div class="container"> <h1>Error</h1> <p class="message"> Call to undefined function imagettfbbox() </p> <div class="source"> <p class="file">/home/xxx/domains/survey.domain.com/public_html/application/extensions/captchaExtended/CaptchaExtendedAction.php(471)</p> <div class="code"><pre><span class="ln">459</span> imagecolordeallocate($image,$backColor); <span class="ln">460</span> <span class="ln">461</span> if($this->transparent){ <span class="ln">462</span> imagecolortransparent($image,$backColor); <span class="ln">463</span> } <span class="ln">464</span> <span class="ln">465</span> if($this->fontFile === null){ <span class="ln">466</span> $this->fontFile = realname(Yii::app()->basePath."/../assets/fonts/font-src/lato-v11-latin-700.ttf"); <span class="ln">467</span> <span class="ln">468</span> } <span class="ln">469</span> <span class="ln">470</span> $length = strlen($code); <span class="error"><span class="ln error-ln">471</span> $box = imagettfbbox(25,0,$this->fontFile,$code); </span><span class="ln">472</span> $w = $box[4] - $box[0] + $this->offset * ($length - 1); <span class="ln">473</span> $h = $box[1] - $box[5]; <span class="ln">474</span> $scale = min(($this->width - $this->padding * 2) / $w,($this->height - $this->padding * 2) / $h); <span class="ln">475</span> $x = 10; <span class="ln">476</span> $y = round($this->height * 27 / 40); <span class="ln">477</span> <span class="ln">478</span> $r = (int)($this->foreColor % 0x1000000 / 0x10000); <span class="ln">479</span> $g = (int)($this->foreColor % 0x10000 / 0x100); <span class="ln">480</span> $b = $this->foreColor % 0x100; <span class="ln">481</span> $foreColor = imagecolorallocate($image, mt_rand($r-50,$r+50), mt_rand($g-50,$g+50),mt_rand($b-50,$b+50)); <span class="ln">482</span> <span class="ln">483</span> for($i = 0; $i < $length; ++$i){ </pre></div> </div> <div class="traces"> <h2>Stack Trace</h2> <table style="width:100%;"> <tr class="trace app expanded"> <td class="number"> #0 </td> <td class="content"> <div class="trace-file"> <div class="plus">+</div> <div class="minus">–</div>  /home/xxx/domains/survey.domain.com/public_html/application/extensions/captchaExtended/CaptchaExtendedAction.php(143): <strong>CaptchaExtendedAction</strong>-><strong>renderImage</strong>() </div> <div class="code"><pre><span class="ln">138</span> 'hash1'=>$this->generateValidationHash($result), <span class="ln">139</span> 'hash2'=>$this->generateValidationHashCI($result), <span class="ln">140</span> 'url'=>$this->getController()->createUrl($this->getId(),array('v' => uniqid())), <span class="ln">141</span> )); <span class="ln">142</span> }else{ <span class="error"><span class="ln error-ln">143</span> $this->renderImage($this->getVerifyCode()); </span><span class="ln">144</span> } <span class="ln">145</span> } <span class="ln">146</span> Yii::app()->end(); <span class="ln">147</span> } <span class="ln">148</span> </pre></div> </td> </tr> <tr class="trace core collapsed"> <td class="number"> #1 </td> <td class="content"> <div class="trace-file"> <div class="plus">+</div> <div class="minus">–</div>  /home/xxx/domains/survey.domain.com/public_html/framework/web/actions/CAction.php(76): <strong>CaptchaExtendedAction</strong>-><strong>run</strong>() </div> <div class="code"><pre><span class="ln">71</span> { <span class="ln">72</span> $method=new ReflectionMethod($this, 'run'); <span class="ln">73</span> if($method->getNumberOfParameters()>0) <span class="ln">74</span> return $this->runWithParamsInternal($this, $method, $params); <span class="ln">75</span> <span class="error"><span class="ln error-ln">76</span> $this->run(); </span><span class="ln">77</span> return true; <span class="ln">78</span> } <span class="ln">79</span> <span class="ln">80</span> /** <span class="ln">81</span> * Executes a method of an object with the supplied named parameters. </pre></div> </td> </tr> <tr class="trace core collapsed"> <td class="number"> #2 </td> <td class="content"> <div class="trace-file"> <div class="plus">+</div> <div class="minus">–</div>  /home/xxx/domains/survey.domain.com/public_html/framework/web/CController.php(308): <strong>CAction</strong>-><strong>runWithParams</strong>() </div> <div class="code"><pre><span class="ln">303</span> { <span class="ln">304</span> $priorAction=$this->_action; <span class="ln">305</span> $this->_action=$action; <span class="ln">306</span> if($this->beforeAction($action)) <span class="ln">307</span> { <span class="error"><span class="ln error-ln">308</span> if($action->runWithParams($this->getActionParams())===false) </span><span class="ln">309</span> $this->invalidActionParams($action); <span class="ln">310</span> else <span class="ln">311</span> $this->afterAction($action); <span class="ln">312</span> } <span class="ln">313</span> $this->_action=$priorAction; </pre></div> </td> </tr> <tr class="trace core collapsed"> <td class="number"> #3 </td> <td class="content"> <div class="trace-file"> <div class="plus">+</div> <div class="minus">–</div>  /home/xxx/domains/survey.domain.com/public_html/framework/web/CController.php(286): <strong>CController</strong>-><strong>runAction</strong>() </div> <div class="code"><pre><span class="ln">281</span> * @see runAction <span class="ln">282</span> / <span class="ln">283</span> public function runActionWithFilters($action,$filters) <span class="ln">284</span> { <span class="ln">285</span> if(empty($filters)) <span class="error"><span class="ln error-ln">286</span> $this->runAction($action); </span><span class="ln">287</span> else <span class="ln">288</span> { <span class="ln">289</span> $priorAction=$this->_action; <span class="ln">290</span> $this->_action=$action; <span class="ln">291</span> CFilterChain::create($this,$action,$filters)->run(); </pre></div> </td> </tr> <tr class="trace core collapsed"> <td class="number"> #4 </td> <td class="content"> <div class="trace-file"> <div class="plus">+</div> <div class="minus">–</div>  /home/xxx/domains/survey.domain.com/public_html/framework/web/CController.php(265): <strong>CController</strong>-><strong>runActionWithFilters</strong>() </div> <div class="code"><pre><span class="ln">260</span> { <span class="ln">261</span> if(($parent=$this->getModule())===null) <span class="ln">262</span> $parent=Yii::app(); <span class="ln">263</span> if($parent->beforeControllerAction($this,$action)) <span class="ln">264</span> { <span class="error"><span class="ln error-ln">265</span> $this->runActionWithFilters($action,$this->filters()); </span><span class="ln">266</span> $parent->afterControllerAction($this,$action); <span class="ln">267</span> } <span class="ln">268</span> } <span class="ln">269</span> else <span class="ln">270</span> $this->missingAction($actionID); </pre></div> </td> </tr> <tr class="trace core collapsed"> <td class="number"> #5 </td> <td class="content"> <div class="trace-file"> <div class="plus">+</div> <div class="minus">–</div>  /home/xxx/domains/survey.domain.com/public_html/framework/web/CWebApplication.php(282): <strong>CController</strong>-><strong>run</strong>() </div> <div class="code"><pre><span class="ln">277</span> { <span class="ln">278</span> list($controller,$actionID)=$ca; <span class="ln">279</span> $oldController=$this->_controller; <span class="ln">280</span> $this->_controller=$controller; <span class="ln">281</span> $controller->init(); <span class="error"><span class="ln error-ln">282</span> $controller->run($actionID); </span><span class="ln">283</span> $this->_controller=$oldController; <span class="ln">284</span> } <span class="ln">285</span> else <span class="ln">286</span> throw new CHttpException(404,Yii::t('yii','Unable to resolve the request "{route}".', <span class="ln">287</span> array('{route}'=>$route===''?$this->defaultController:$route))); </pre></div> </td> </tr> <tr class="trace core collapsed"> <td class="number"> #6 </td> <td class="content"> <div class="trace-file"> <div class="plus">+</div> <div class="minus">–</div>  /home/xxx/domains/survey.domain.com/public_html/framework/web/CWebApplication.php(141): <strong>CWebApplication</strong>-><strong>runController</strong>() </div> <div class="code"><pre><span class="ln">136</span> foreach(array_splice($this->catchAllRequest,1) as $name=>$value) <span class="ln">137</span> $_GET[$name]=$value; <span class="ln">138</span> } <span class="ln">139</span> else <span class="ln">140</span> $route=$this->getUrlManager()->parseUrl($this->getRequest()); <span class="error"><span class="ln error-ln">141</span> $this->runController($route); </span><span class="ln">142</span> } <span class="ln">143</span> <span class="ln">144</span> /* <span class="ln">145</span> * Registers the core application components. <span class="ln">146</span> * This method overrides the parent implementation by registering additional core components. </pre></div> </td> </tr> <tr class="trace core collapsed"> <td class="number"> #7 </td> <td class="content"> <div class="trace-file"> <div class="plus">+</div> <div class="minus">–</div>  /home/xxx/domains/survey.domain.com/public_html/framework/base/CApplication.php(185): <strong>CWebApplication</strong>-><strong>processRequest</strong>() </div> <div class="code"><pre><span class="ln">180</span> public function run() <span class="ln">181</span> { <span class="ln">182</span> if($this->hasEventHandler('onBeginRequest')) <span class="ln">183</span> $this->onBeginRequest(new CEvent($this)); <span class="ln">184</span> register_shutdown_function(array($this,'end'),0,false); <span class="error"><span class="ln error-ln">185</span> $this->processRequest(); </span><span class="ln">186</span> if($this->hasEventHandler('onEndRequest')) <span class="ln">187</span> $this->onEndRequest(new CEvent($this)); <span class="ln">188</span> } <span class="ln">189</span> <span class="ln">190</span> /** </pre></div> </td> </tr> <tr class="trace app expanded"> <td class="number"> #8 </td> <td class="content"> <div class="trace-file"> <div class="plus">+</div> <div class="minus">–</div>  /home/xxx/domains/survey.domain.com/public_html/index.php(182): <strong>CApplication</strong>-><strong>run</strong>() </div> <div class="code"><pre><span class="ln">177</span> require_once APPPATH . 'core/LSYii_Application' . EXT; <span class="ln">178</span> <span class="ln">179</span> $config = require_once(APPPATH . 'config/internal' . EXT); <span class="ln">180</span> <span class="ln">181</span> Yii::$enableIncludePath = false; <span class="error"><span class="ln error-ln">182</span> Yii::createApplication('LSYii_Application', $config)->run(); </span><span class="ln">183</span> <span class="ln">184</span> /* End of file index.php / <span class="ln">185</span> / Location: ./index.php / </pre></div> </td> </tr> </table> </div> <div class="version"> 2020-04-09 12:15:59 Apache <a href="http://www.yiiframework.com/">Yii Framework</a>/1.1.22-dev </div> </div> <script type="text/javascript"> /<![CDATA[/ var traceReg = new RegExp("(^\|\\s)trace-file(\\s\|$)"); var collapsedReg = new RegExp("(^\|\\s)collapsed(\\s\|$)"); var e = document.getElementsByTagName("div"); for(var j=0,len=e.length;j<len;j++){ if(traceReg.test(e[j].className)){ e[j].onclick = function(){ var trace = this.parentNode.parentNode; if(collapsedReg.test(trace.className)) trace.className = trace.className.replace("collapsed", "expanded"); else trace.className = trace.className.replace("expanded", "collapsed"); } } } /]]>*/ </script> </body> </html> Error.htm (16,214 bytes)

DenisChenu 2020-04-09 16:09 developer ~57058	https://www.php.net/manual/en/function.imagettfbbox.php#refsect1-function.imagettfbbox-notes

Mojon 2020-04-09 17:09 reporter ~57060	I compiled freetype support for PHP 7.4 Work fine. Thx for help

cdorin 2020-04-09 22:29 reporter ~57065	Hello, Works fine? SHall I close the bug report then? :)

DenisChenu 2020-04-10 09:07 developer ~57067	No :) Must show an alert when install (optional or not ?) Must show an alert (or disable) in survey settings another place ?

c_schmitz 2025-11-14 16:51 administrator ~83819	Fix committed to master branch: http://bugs.limesurvey.org/plugin.php?page=Source/view&id=39158

c_schmitz 2025-11-14 16:52 administrator ~83820	Will now be checked on installation.

LimeSurvey: master f80834de 2025-11-14 16:51 c_schmitz Details Diff	Fixed issue 16116: Lack of freetype support shows no CAPTCHA and no alert	Affected Issues 16116
	add - application/config/config.phpas	Diff File
	mod - application/helpers/SurveyRuntimeHelper.php	Diff File
	mod - application/models/InstallerConfigForm.php	Diff File
	mod - application/views/installer/precheck_view.php	Diff File

Date Modified	Username	Field	Change
2020-04-08 13:06	Mojon	New Issue
2020-04-08 13:06	Mojon	File Added: survey_IE.png
2020-04-08 13:06	Mojon	File Added: survey.png
2020-04-09 14:28	Mojon	File Added: Error.htm
2020-04-09 14:28	Mojon	Note Added: 57056
2020-04-09 16:09	DenisChenu	Note Added: 57058
2020-04-09 17:09	Mojon	Note Added: 57060
2020-04-09 22:29	cdorin	Note Added: 57065
2020-04-10 09:06	DenisChenu	Summary	CAPTCHA => Lack of freetype support : no CAPTCHA and no alert
2020-04-10 09:06	DenisChenu	Description Updated
2020-04-10 09:06	DenisChenu	Additional Information Updated
2020-04-10 09:06	DenisChenu	Assigned To	=> DenisChenu
2020-04-10 09:06	DenisChenu	Status	new => assigned
2020-04-10 09:07	DenisChenu	Note Added: 57067
2025-11-14 16:50	c_schmitz	Assigned To	DenisChenu => c_schmitz
2025-11-14 16:51	c_schmitz	Changeset attached	=> LimeSurvey master f80834de
2025-11-14 16:51	c_schmitz	Note Added: 83819
2025-11-14 16:51	c_schmitz	Status	assigned => resolved
2025-11-14 16:51	c_schmitz	Resolution	open => fixed
2025-11-14 16:51	c_schmitz	Bug heat	6 => 8
2025-11-14 16:52	c_schmitz	Note Added: 83820

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