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htdocs/libraries/formsgeneration
196
htdocs/libraries/formsgeneration/form_upload_progress.php
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196
htdocs/libraries/formsgeneration/form_upload_progress.php
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<?php
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/*
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* form_upload_progress.php
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*
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* @(#) $Id: form_upload_progress.php,v 1.4 2011/03/14 08:38:29 mlemos Exp $
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*
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*/
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class form_upload_progress_class extends form_custom_class
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{
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var $server_validate=0;
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var $upload_identifier='';
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var $monitor='';
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var $monitor_action='';
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var $feedback_element='';
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var $feedback_format='{PROGRESS}%';
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var $wait_time=10;
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var $started = 0;
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var $uploaded=0;
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var $total=0;
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var $remaining=0;
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var $average_speed=0;
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var $current_speed=0;
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var $last_feedback='';
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var $start_time=0;
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Function AddInput(&$form, $arguments)
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{
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if(!function_exists('uploadprogress_get_info'))
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return('the upload progress extension is not available in this PHP installation');
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if(IsSet($arguments['FeedbackElement']))
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{
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if(strlen($arguments['FeedbackElement'])==0)
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return('it was not specified a valid feedback element identifier');
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if(IsSet($arguments['FeedbackFormat']))
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{
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if(strlen($arguments['FeedbackFormat'])==0)
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return('it was not specified a valid feedback format');
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$this->feedback_format=$arguments['FeedbackFormat'];
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}
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$this->feedback_element=$arguments['FeedbackElement'];
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}
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$this->upload_identifier=uniqid($this->input);
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$this->monitor=$this->GenerateInputID($form, $this->input, 'monitor');
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if(strlen($error=$form->ConnectFormToInput($this->input, 'ONSUBMITTING', 'Monitor', array()))
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|| strlen($error=$form->AddInput(array(
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'TYPE'=>'hidden',
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'ID'=>'UPLOAD_IDENTIFIER',
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'NAME'=>'UPLOAD_IDENTIFIER',
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'VALUE'=>$this->upload_identifier
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)))
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|| strlen($error= $form->AddInput(array(
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'TYPE'=>'custom',
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'NAME'=>$this->monitor,
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'ID'=>$this->monitor,
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'CustomClass'=>'form_ajax_submit_class',
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'TargetInput'=>$this->input,
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'ONTIMEOUT'=>''
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))))
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return($error);
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return('');
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}
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Function AddInputPart(&$form)
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{
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$context=array(
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'Parameters'=>array(
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'UPLOAD_IDENTIFIER'=>$this->upload_identifier
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),
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'RandomParameter'=>'r'
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);
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if(strlen($error=$form->GetJavascriptConnectionAction('f', $this->input, $this->monitor, 'ONMONITOR', 'Load', $context, $monitor)))
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return($error);
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$eol=$form->end_of_line;
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$javascript='<script type="text/javascript" defer="defer">'.$eol."<!--\n";
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$javascript.='function '.$this->input.'_monitor(f)'.$eol.'{'.$eol;
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$javascript.=$monitor;
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$javascript.='}'.$eol.'// -->'.$eol.'</script>';
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if(strlen($error=$form->AddDataPart($javascript))
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|| strlen($error=$form->AddInputPart('UPLOAD_IDENTIFIER'))
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|| strlen($error=$form->AddInputPart($this->monitor)))
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return($error);
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return('');
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}
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Function GetJavascriptConnectionAction(&$form, $form_object, $from, $event, $action, &$context, &$javascript)
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{
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switch($action)
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{
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case 'Monitor':
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$javascript='window.setTimeout('.$form->EncodeJavascriptString($this->input.'_monitor();').', 10);';
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break;
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default:
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return($this->DefaultGetJavascriptConnectionAction($form, $form_object, $from, $event, $action, $context, $javascript));
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}
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return('');
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}
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Function FormatNumber($number)
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{
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if($number<1024)
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return($number);
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$number=intval($number/1024);
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if($number<1024)
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return($number.'K');
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$number=intval($number/1024);
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if($number<1024)
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return($number.'M');
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$number=intval($number/1024);
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return($number.'G');
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}
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Function FormatTime($time)
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{
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if($time<60)
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return(sprintf('00:%02d', $time));
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if($time<3600)
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return(sprintf('00:%02d:%02d', intval($time/60), $time % 60));
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return(sprintf('%02d:%02d:%02d', intval($time/3600), intval($time/60) % 60, $time % 60));
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}
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Function PostMessage(&$form, $message, &$processed)
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{
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switch($message['Event'])
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{
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case 'load':
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$more=0;
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$id=$_REQUEST['UPLOAD_IDENTIFIER'];
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if($this->started)
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{
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$progress=uploadprogress_get_info($id);
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if(IsSet($progress))
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$more=1;
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else
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$this->uploaded=$this->total;
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}
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else
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{
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if($this->start_time==0)
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{
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$this->uploaded=$this->total=$this->remaining=$this->average_speed=$this->current_speed=0;
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$this->last_feedback='';
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$this->start_time=time();
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}
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$progress=uploadprogress_get_info($id);
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if(IsSet($progress))
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{
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$this->started=1;
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$more=1;
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}
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elseif(time()-$this->start_time<$this->wait_time)
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$more=1;
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}
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$message['Actions']=array();
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if(strlen($this->feedback_element))
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{
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if(IsSet($progress))
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{
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$this->uploaded=$progress['bytes_uploaded'];
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$this->total=$progress['bytes_total'];
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$this->remaining=$progress['est_sec'];
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$this->average_speed=$progress['speed_average'];
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$this->current_speed=$progress['speed_last'];
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}
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$feedback=($this->total ? str_replace('{PROGRESS}', intval($this->uploaded*100.0/$this->total), str_replace('{ACCURATE_PROGRESS}', $this->uploaded*100.0/$this->total, str_replace('{UPLOADED}', $this->FormatNumber($this->uploaded), str_replace('{TOTAL}', $this->FormatNumber($this->total), str_replace('{REMAINING}', $this->FormatTime($this->remaining), str_replace('{AVERAGE_SPEED}', $this->FormatNumber($this->average_speed), str_replace('{CURRENT_SPEED}', $this->FormatNumber($this->current_speed), $this->feedback_format))))))) : '');
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if(strcmp($this->last_feedback, $feedback))
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{
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$message['Actions'][]=array(
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'Action'=>'ReplaceContent',
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'Container'=>$this->feedback_element,
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'Content'=>$feedback
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);
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$this->last_feedback=$feedback;
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}
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}
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if($more)
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{
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$message['Actions'][]=array(
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'Action'=>'Wait',
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'Time'=>1
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);
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}
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$message['More']=$more;
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break;
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}
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return($form->ReplyMessage($message, $processed));
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}
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Function LoadInputValues(&$form, $submitted)
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{
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return($form->SetInputValue('UPLOAD_IDENTIFIER', $this->upload_identifier));
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}
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};
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?>
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