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Merge pull request #2345 from codeeu/dev
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Update CertificateParticipation and LatexCleaner to process certs that time out
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@bernardhanna
bernardhanna authored Nov 26, 2024
2 parents 6982f2b + 4f6a521 commit e0d1043
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Showing 2 changed files with 38 additions and 50 deletions.
79 changes: 34 additions & 45 deletions app/CertificateParticipation.php
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,6 @@
use Carbon\Carbon;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Str;
use Log;
use Symfony\Component\Process\Exception\ProcessFailedException;
use Symfony\Component\Process\Process;

Expand All @@ -25,7 +24,6 @@ class CertificateParticipation

private $personalized_template_name;

//private $event;
private $id;

private $event_name;
Expand All @@ -40,42 +38,36 @@ class CertificateParticipation

public function __construct($name_for_certificate, $event_name, $event_date)
{
ini_set('max_execution_time', 600); // Set max execution time to 600 seconds
ini_set('memory_limit', '512M'); // Set memory limit to 512 MB (adjust as needed)

$this->name_of_certificate_holder = $name_for_certificate;
$this->event_name = $event_name;
$this->event_date = $event_date;

//if ($this->is_greek_text($this->name_of_certificate_holder)){
$random = Str::random(10);
//} else {
// $random = Str::kebab($this->name_of_certificate_holder) . "-" . Str::random(10);
//}

$this->personalized_template_name = $random.'-'.auth()->id();
$this->resource_path = resource_path().'/latex';
$this->personalized_template_name = $random . '-' . auth()->id();
$this->resource_path = resource_path() . '/latex';
$this->pdflatex = config('codeweek.pdflatex_path');
$this->id = auth()->id().'-'.$random;
Log::info('User ID '.auth()->id().' generating participation certificate with name: '.$name_for_certificate);
$this->id = auth()->id() . '-' . $random;
}

public function generate()
{

$this->customize_and_save_latex();
$this->run_pdf_creation();
$this->clean_temp_files();

return $this->personalized_template_name;
//$s3path = $this->copy_to_s3();

//return $s3path;

}

private function clean_temp_files()
{
Storage::disk('latex')->delete($this->personalized_template_name.'.aux');
Storage::disk('latex')->delete($this->personalized_template_name.'.tex');
Storage::disk('latex')->delete($this->personalized_template_name.'.log');
$extensions = ['aux', 'tex', 'log'];
foreach ($extensions as $ext) {
Storage::disk('latex')->delete($this->personalized_template_name . '.' . $ext);
}
}

protected function update_event($s3path)
Expand All @@ -86,26 +78,17 @@ protected function update_event($s3path)
]);
}

/**
* @throws \League\Flysystem\FileNotFoundException
*/
protected function copy_to_s3(): string
{
$inputStream = Storage::disk('latex')->getDriver()->readStream($this->personalized_template_name.'.pdf');
$destination = Storage::disk('s3')->path('/certificates/'.$this->id.'.pdf');
$inputStream = Storage::disk('latex')->getDriver()->readStream($this->personalized_template_name . '.pdf');
$destination = Storage::disk('s3')->path('/certificates/' . $this->id . '.pdf');
Storage::disk('s3')->put($destination, $inputStream);

return Storage::disk('s3')->url('certificates/'.$this->id.'.pdf');
return Storage::disk('s3')->url('certificates/' . $this->id . '.pdf');
}

/**
* @return mixed
*
* @throws \Illuminate\Contracts\Filesystem\FileNotFoundException
*/
protected function customize_and_save_latex()
{

if ($this->is_greek_text($this->event_name) || $this->is_greek_text($this->event_date) || $this->is_greek_text($this->name_of_certificate_holder)) {
$this->templateName = 'participation_greek.tex';
}
Expand All @@ -121,11 +104,9 @@ protected function customize_and_save_latex()
if ($this->is_greek_text($this->name_of_certificate_holder)) {
$this->certificate_holder_name_lang = 'greek';
}
// Log::info($this->templateName);
//open the latex template

$base_template = Storage::disk('latex')->get($this->templateName);

//replace the text in template
$template = str_replace('<CERTIFICATE_HOLDER_NAME>', $this->tex_escape($this->name_of_certificate_holder), $base_template);
$template = str_replace('<EVENT_NAME>', $this->tex_escape($this->event_name), $template);
$template = str_replace('<EVENT_DATE>', $this->tex_escape($this->event_date), $template);
Expand All @@ -134,26 +115,34 @@ protected function customize_and_save_latex()
$template = str_replace('<EVENT_NAME_LANG>', $this->tex_escape($this->event_name_lang), $template);
$template = str_replace('<EVENT_DATE_LANG>', $this->tex_escape($this->event_date_lang), $template);

// dd($template);

//save it locally
Storage::disk('latex')->put($this->personalized_template_name.'.tex', $template);
Storage::disk('latex')->put($this->personalized_template_name . '.tex', $template);
}

protected function run_pdf_creation(): void
{
if (!file_exists($this->pdflatex)) {
throw new \RuntimeException("pdflatex binary not found at path: {$this->pdflatex}");
}

//call the pdflatex command
$command = $this->pdflatex.' -interaction=nonstopmode -output-directory '.$this->resource_path.' '.$this->resource_path.'/'.$this->personalized_template_name.'.tex';
$command = escapeshellcmd($this->pdflatex) . ' -interaction=nonstopmode -output-directory '
. escapeshellarg($this->resource_path) . ' '
. escapeshellarg($this->resource_path . '/' . $this->personalized_template_name . '.tex');

$cwd = $this->resource_path;
$process = Process::fromShellCommandline($command, $cwd);
//$process = new Process($command, $cwd);
$process->run();
$process = Process::fromShellCommandline($command, $this->resource_path);
$process->setTimeout(600); // Allow up to 600 seconds for execution
$this->execute_process($process);

// executes after the command finishes
if (! $process->isSuccessful()) {
if (!$process->isSuccessful()) {
throw new ProcessFailedException($process);
}
}

private function execute_process(Process $process): void
{
$process->start();

while ($process->isRunning()) {
usleep(400000); // Sleep for 400ms
}
}
}
9 changes: 4 additions & 5 deletions app/Traits/LatexCleaner.php
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Original file line number Diff line number Diff line change
Expand Up @@ -9,8 +9,9 @@ public function tex_escape($string)
$map = [
'ʼ' => "'", // Replace Unicode apostrophe with standard apostrophe
'ə' => '\\textschwa{}', // Handle ə
'"' => "''", // Replace double quotes with two single quotes
'#' => '\\#',
'$' => '\$',
'$' => '\\$',
'%' => '\\%',
'&' => '\\&',
'~' => '\\~{}',
Expand All @@ -21,14 +22,12 @@ public function tex_escape($string)
'}' => '\\}',
];

$string = preg_replace_callback(
"/([\^\%~\\\\#\$%&_\{\}ʼ])/",
return preg_replace_callback(
"/([\#\$%&~_\^\\\\{}ʼ\"])/",
function ($matches) use ($map) {
return $map[$matches[0]] ?? $matches[0];
},
$string
);

return $string;
}
}

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