xref: /plugin/siteexport/inc/pdfgenerator.php (revision 8914cf7e8ff4d9d8a49128161d2e336e0ab80523)
1<?php
2
3if(!defined('DOKU_PLUGIN')) die('meh');
4
5if ( intval($_REQUEST['pdfExport']) == 1 && file_exists(DOKU_PLUGIN . 'dw2pdf/mpdf/mpdf.php') ) {
6
7    require_once(DOKU_PLUGIN . 'siteexport/inc/mpdf.php');
8    class siteexport_pdfgenerator
9    {
10        private $functions;
11
12        public function siteexport_pdfgenerator( $functions=null )
13        {
14            $this->functions = $functions;
15        }
16
17        function createPDFFromFile($filename, &$NAME) {
18
19            if ( !preg_match("/" . $this->settings->fileType . "$/", $NAME) ) {
20                $this->functions->debug->message("Filetype {$this->settings->fileType} did not match filename '$NAME'", null, 4);
21                return false;
22            }
23
24            $mpdf = new siteexportPDF($this->functions->debug);
25
26            if ( !$mpdf ) {
27                $this->functions->debug->message("Could not instantiate MPDF", null, 4);
28                return false;
29            }
30
31            $html = file_get_contents($filename);
32
33            if ( !strstr($html, "<html") ) {
34                $this->functions->debug->message("Filecontent had no HTML starting tag", null, 4);
35                return false;
36            }
37
38            // Save HTML too
39            $this->functions->debug->message("Arranging HTML", null, 2);
40            $this->arrangeHtml($html, 'bl,acronym');
41            $this->functions->debug->message("Done arranging HTML:", $html, 1);
42
43            $mpdf->debug = false;
44            $mpdf->list_indent_first_level = 1; // Indents the first level of lists.
45            //$mpdf->SetBasePath("/");
46            $mpdf->usepre = false;
47            $mpdf->margin_bottom_collapse = true;
48            $mpdf->SetDisplayMode('fullpage');
49            $mpdf->restoreBlockPageBreaks = true;
50            $this->img_dpi = 300;
51
52            $mpdf->setBasePath(empty($this->functions->settings->depth) ? './' : $this->functions->settings->depth);
53            $mpdf->SetAutoFont(AUTOFONT_ALL);
54
55            $mpdf->ignore_invalid_utf8 = true;
56            $mpdf->mirrorMargins = 0;	// don't mirror margins
57
58            $mpdf->WriteHTML($html);
59            $mpdf->Output($filename, "F");
60
61            $this->functions->debug->message("Used images:", $mpdf->images, 1);
62            $this->functions->debug->message("Failed images:", $mpdf->failedimages, 1);
63
64            return true;
65        }
66
67        function arrangeHtml(&$html, $norendertags = '' )
68        {
69            global $conf;
70
71            // add bookmark links
72            $html = preg_replace_callback("/<h(\d)(.*?)>(.+?)<\/h\\1>/s", array($this, '__pdfHeaderCallback'), $html);
73            $html = preg_replace_callback("/<\/div>\s*?<h({$conf['plugin']['siteexport']['PDFHeaderPagebreak']})(.*?)>/s", array($this, '__pdfHeaderCallbackPagebreak'), $html);
74            $html = preg_replace("/(<img.*?mediacenter.*?\/>)/", "<table style=\"width:100%; border: 0px solid #000;\"><tr><td style=\"text-align: center\">$1</td></tr></table>", $html);
75            $html = preg_replace("/<p>(\s*?<table.*?<\/table>\s*?)<\/p>/s", "$1", $html);
76            $html = preg_replace_callback("/<pre(.*?)>(.*?)<\/pre>/s", array($this, '__pdfPreCodeCallback'), $html);
77            $html = preg_replace_callback("/<a href=\"mailto:(.*?)\".*?>(.*?)<\/a>/s", array($this, '__pdfMailtoCallback'), $html);
78            /**/
79
80            $standardReplacer = array (
81            // insert a pagebreak for support of WRAP and PAGEBREAK plugins
82        							'<br style="page-break-after:always;">' => '<pagebreak />',
83                                    '<div class="wrap_pagebreak"></div>' => '<pagebreak />',
84                                    '<sup>' => '<sup class="sup">',
85                                    '<sub>' => '<sub class="sub">',
86                                    '<code>' => '<code class="code">'
87            );
88            $html = str_replace(array_keys($standardReplacer), array_values($standardReplacer), $html);
89
90            // thanks to Jared Ong
91            // Customized to strip all span tags so that the wiki <code> SQL would display properly
92            $norender = explode(',',$norendertags);
93            $html = $this->strip_only($html, $norender ); //array('span','acronym'));
94            $html = $this->strip_htmlencodedchars($html);
95            // Customized to strip all span tags so that the wiki <code> SQL would display properly
96        }
97
98        private function __pdfMailtoCallback($DATA) {
99            if ( $DATA[1] == $DATA[2] ) {
100                $DATA[2] = $this->deobfuscate($DATA[2]);
101            }
102            $DATA[1] = $this->deobfuscate($DATA[1]);
103            return "<a href=\"mailto:{$DATA[1]}\">{$DATA[2]}</a>";
104        }
105
106        private function __pdfPreCodeCallback($DATA) {
107
108            $code = nl2br($DATA[2]);
109            $code = preg_replace_callback("/(^|<br \/>)(\s+)(\S)/s", array($this, '__pdfPreWhitespacesCallback'), $code);
110
111            return "\n<pre" . $DATA[1] . ">\n" . $code . "\n</pre>\n";
112        }
113
114        private function __pdfPreWhitespacesCallback( $DATA ) {
115            return $DATA[1] . "\n" . str_repeat("&nbsp;", strlen($DATA[2])-($DATA[2]{0}=="\n"?1:0) ) . $DATA[3];
116        }
117
118        private function __pdfHeaderCallback($DATA) {
119            $contentText = $this->xmlEntities(preg_replace("/<\/?.*?>/s", '', $DATA[3])); // Double encoding - has to be decoded in mpdf once more.
120            return '<tocentry content="' . $contentText . '" level="' . ($DATA[1]-1) . '" /><bookmark content="' . $contentText . '" level="' . ($DATA[1]-1) . '" /><h' . $DATA[1] . $DATA[2] . '>' . $DATA[3] . '</h' . $DATA[1] . '>';
121        }
122
123        private function __pdfHeaderCallbackPagebreak($DATA) {
124            return '</div>' . "\r\n" . '<pagebreak />' . "\r\n\r\n" . '<h' . $DATA[1] . $DATA[2] . '>';
125        }
126        // thanks to Jared Ong
127        // Custom function for help in stripping span tags
128        private function strip_only($str, $tags) {
129            if(!is_array($tags)) {
130                $tags = (strpos($str, '>') !== false ? explode('>', str_replace('<', '', $tags)) : array($tags));
131                if(end($tags) == '') array_pop($tags);
132            }
133
134            foreach($tags as $tag) $str = preg_replace('#</?'.$tag.'[^>]*>#is', '', $str);
135            return $str;
136        }
137        // Custom function for help in stripping span tags
138
139        // Custom function for help in replacing &#039; &quot; &gt; &lt; &amp;
140        private function strip_htmlencodedchars($str) {
141            $str = str_replace('&#039;', '\'', $str);
142            //        $str = str_replace('&quot;', '"', $str);
143            //        $str = str_replace('&gt;', '>', $str);
144            //        $str = str_replace('&lt;', '<', $str);
145            //        $str = str_replace('&amp;', '&', $str);
146            return $str;
147        }
148        // Custom function for help in replacing &#039; &quot; &gt; &lt; &amp;
149
150        /**
151         * return an de-obfuscated email address in line with $conf['mailguard'] setting
152         */
153        private function deobfuscate($email) {
154            global $conf;
155
156            switch ($conf['mailguard']) {
157                case 'visible' :
158                    $obfuscate = array(' [at] ' => '@', ' [dot] ' => '.', ' [dash] ' => '-');
159                    return strtr($email, $obfuscate);
160
161                case 'hex' :
162                    $encode = '';
163                    $len = strlen($email);
164                    for ($x=0; $x < $len; $x+=6){
165                        $encode .= chr(hexdec($email{$x+3}.$email{($x+4)}));
166                    }
167                    return $encode;
168
169                case 'none' :
170                default :
171                    return $email;
172            }
173        }
174
175        /**
176         * Encoding ()taken from DW - but without needing the renderer
177         **/
178        private function xmlEntities($string) {
179            return htmlspecialchars($string,ENT_QUOTES,'UTF-8');
180        }
181    }
182}
183?>