pronto/plugins/page/pdf.php

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<?php
class ppPDF extends Plugin
{
        var $fn_pdf;
        var $tempdir;

        // Only used for DOMPDF
        var $paper_size        = 'letter';
        var $paper_orientation = 'portrait';

        function ppPDF()
        {
                $this->Plugin();

                if(!defined('PDF_BACKEND')) {
                        define('PDF_BACKEND', 'prince');
                }

                $this->tempdir = defined('DIR_FS_TEMP') ? DIR_FS_TEMP : DS.'tmp';
        }

        function convert($html, $filename='')
        {
                if(!$filename) {
                        $filename = $this->fn_pdf = tempnam($this->tempdir, 'pdf');
                }

                if(PDF_BACKEND == 'prince') {
                        return $this->_convert_prince($html, $filename);
                }

                if(PDF_BACKEND == 'dompdf') {
                        return $this->_convert_dompdf($html, $filename);
                }

                trigger_error('PDF_BACKEND is undefined or invalid');
                return false;
        }

        function output($filename='')
        {
                header('Content-Type: application/pdf');
                header('Content-Length: '.filesize($this->fn_pdf));
                if($filename) {
                        header('Content-Disposition: inline; filename="'.$filename.'"');
                }
                readfile($this->fn_pdf);

                // cleanup
                @unlink($this->fn_pdf);
                $this->fn_pdf = '';
        }

        function set_paper($size, $orientation='portrait')
        {
                $this->paper_size = $size;
                $this->paper_orientation = $orientation;
        }

        function _convert_dompdf($html, $filename)
        {
                require_once(DIR_FS_APP.DS.'extlib'.DS.'dompdf'.DS.'dompdf_config.inc.php');
                $pdf = new DOMPDF();
                $pdf->set_paper($this->paper_size, $this->paper_orientation);
                $pdf->load_html($html);
                $pdf->render();

                file_put_contents($filename, $pdf->output());
                return true;
        }

        function _convert_prince($html, $filename)
        {
                $f_html = tempnam($this->tempdir, 'html');
                file_put_contents($f_html, $html);

                $cmd  = realpath(DIR_FS_APP.DS.'extlib'.DS.'prince'.DS.'bin'.DS.'prince');
                $cmd .= " --silent -i html -o \"$filename\" $f_html";
                system($cmd);
                @unlink($f_html);
                return true;
        }

}

?>

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