inc/poche/WallabagEBooks.class.php

   1 <?php
   2 /**
   3  * wallabag, self hostable application allowing you to not miss any content anymore
   4  *
   5  * @category   wallabag
   6  * @author     Nicolas Lœuillet <nicolas@loeuillet.org>
   7  * @copyright  2013
   8  * @license    http://opensource.org/licenses/MIT see COPYING file
   9  */
  10
  11 class WallabagEBooks
  12 {
  13         protected $wallabag;
  14     protected $method;
  15     protected $value;
  16     protected $entries;
  17     protected $bookTitle;
  18     protected $bookFileName;
  19
  20     public function __construct(Poche $wallabag, $method, $value)
  21     {
  22         $this->wallabag = $wallabag;
  23         $this->method   = $method;
  24         $this->value    = $value;
  25     }
  26
  27     public function prepareData()
  28     {
  29         switch ($this->method) {
  30             case 'id':
  31                 $entryID = filter_var($this->value, FILTER_SANITIZE_NUMBER_INT);
  32                 $entry = $this->wallabag->store->retrieveOneById($entryID, $this->wallabag->user->getId());
  33                 $this->entries = array($entry);
  34                 $this->bookTitle = $entry['title'];
  35                 $this->bookFileName = substr($this->bookTitle, 0, 200);
  36                 break;
  37             case 'all':
  38                 $this->entries = $this->wallabag->store->retrieveAll($this->wallabag->user->getId());
  39                 $this->bookTitle = sprintf(_('All my articles on %s'), date(_('d.m.y'))); #translatable because each country has it's own date format system
  40                 $this->bookFileName = _('Allarticles') . date(_('dmY'));
  41                 break;
  42             case 'tag':
  43                 $tag = filter_var($this->value, FILTER_SANITIZE_STRING);
  44                 $tags_id = $this->wallabag->store->retrieveAllTags($this->wallabag->user->getId(), $tag);
  45                 $tag_id = $tags_id[0]["id"]; // we take the first result, which is supposed to match perfectly. There must be a workaround.
  46                 $this->entries = $this->wallabag->store->retrieveEntriesByTag($tag_id, $this->wallabag->user->getId());
  47                 $this->bookTitle = sprintf(_('Articles tagged %s'), $tag);
  48                 $this->bookFileName = substr(sprintf(_('Tag %s'), $tag), 0, 200);
  49                 break;
  50             case 'category':
  51                 $category = filter_var($this->value, FILTER_SANITIZE_STRING);
  52                 $this->entries = $this->wallabag->store->getEntriesByView($category, $this->wallabag->user->getId());
  53                 $this->bookTitle = sprintf(_('All articles in category %s'), $category);
  54                 $this->bookFileName = substr(sprintf(_('Category %s'), $category), 0, 200);
  55                 break;
  56             case 'search':
  57                 $search = filter_var($this->value, FILTER_SANITIZE_STRING);
  58                 Tools::logm($search);
  59                 $this->entries = $this->wallabag->store->search($search, $this->wallabag->user->getId());
  60                 $this->bookTitle = sprintf(_('All articles for search %s'), $search);
  61                 $this->bookFileName = substr(sprintf(_('Search %s'), $search), 0, 200);
  62                 break;
  63             case 'default':
  64                 die(_('Uh, there is a problem while generating epub.'));
  65         }
  66     }
  67 }
  68
  69 class WallabagEpub extends WallabagEBooks
  70 {
  71     /**
  72      * handle ePub
  73      */
  74     public function produceEpub()
  75     {
  76         $content_start =
  77             "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
  78             . "<html xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:epub=\"http://www.idpf.org/2007/ops\">\n"
  79             . "<head>"
  80             . "<meta http-equiv=\"Default-Style\" content=\"text/html; charset=utf-8\" />\n"
  81             . "<title>wallabag articles book</title>\n"
  82             . "</head>\n"
  83             . "<body>\n";
  84
  85         $bookEnd = "</body>\n</html>\n";
  86
  87         $log = new Logger("wallabag", TRUE);
  88         $fileDir = CACHE;
  89
  90         $book = new EPub(EPub::BOOK_VERSION_EPUB3, DEBUG_POCHE);
  91         $log->logLine("new EPub()");
  92         $log->logLine("EPub class version: " . EPub::VERSION);
  93         $log->logLine("EPub Req. Zip version: " . EPub::REQ_ZIP_VERSION);
  94         $log->logLine("Zip version: " . Zip::VERSION);
  95         $log->logLine("getCurrentServerURL: " . $book->getCurrentServerURL());
  96         $log->logLine("getCurrentPageURL..: " . $book->getCurrentPageURL());
  97
  98         $book->setTitle($this->bookTitle);
  99         $book->setIdentifier("http://$_SERVER[HTTP_HOST]", EPub::IDENTIFIER_URI); // Could also be the ISBN number, prefered for published books, or a UUID.
 100         //$book->setLanguage("en"); // Not needed, but included for the example, Language is mandatory, but EPub defaults to "en". Use RFC3066 Language codes, such as "en", "da", "fr" etc.
 101         $book->setDescription(_("Some articles saved on my wallabag"));
 102         $book->setAuthor("wallabag", "wallabag");
 103         $book->setPublisher("wallabag", "wallabag"); // I hope this is a non existant address :)
 104         $book->setDate(time()); // Strictly not needed as the book date defaults to time().
 105         //$book->setRights("Copyright and licence information specific for the book."); // As this is generated, this _could_ contain the name or licence information of the user who purchased the book, if needed. If this is used that way, the identifier must also be made unique for the book.
 106         $book->setSourceURL("http://$_SERVER[HTTP_HOST]");
 107
 108         $book->addDublinCoreMetadata(DublinCore::CONTRIBUTOR, "PHP");
 109         $book->addDublinCoreMetadata(DublinCore::CONTRIBUTOR, "wallabag");
 110
 111         $cssData = "body {\n margin-left: .5em;\n margin-right: .5em;\n text-align: justify;\n}\n\np {\n font-family: serif;\n font-size: 10pt;\n text-align: justify;\n text-indent: 1em;\n margin-top: 0px;\n margin-bottom: 1ex;\n}\n\nh1, h2 {\n font-family: sans-serif;\n font-style: italic;\n text-align: center;\n background-color: #6b879c;\n color: white;\n width: 100%;\n}\n\nh1 {\n margin-bottom: 2px;\n}\n\nh2 {\n margin-top: -2px;\n margin-bottom: 2px;\n}\n";
 112
 113         $log->logLine("Add Cover");
 114
 115         $fullTitle = "<h1> " . $this->bookTitle . "</h1>\n";
 116
 117         $book->setCoverImage("Cover.png", file_get_contents("themes/baggy/img/apple-touch-icon-152.png"), "image/png", $fullTitle);
 118
 119         $cover = $content_start . '<div style="text-align:center;"><p>' . _('Produced by wallabag with PHPePub') . '</p><p>'. _('Please open <a href="https://github.com/wallabag/wallabag/issues" >an issue</a> if you have trouble with the display of this E-Book on your device.') . '</p></div>' . $bookEnd;
 120
 121         //$book->addChapter("Table of Contents", "TOC.xhtml", NULL, false, EPub::EXTERNAL_REF_IGNORE);
 122         $book->addChapter("Notices", "Cover2.html", $cover);
 123
 124         $book->buildTOC();
 125
 126         foreach ($this->entries as $entry) { //set tags as subjects
 127             $tags = $this->wallabag->store->retrieveTagsByEntry($entry['id']);
 128             foreach ($tags as $tag) {
 129                 $book->setSubject($tag['value']);
 130             }
 131
 132             $log->logLine("Set up parameters");
 133
 134             $chapter = $content_start . $entry['content'] . $bookEnd;
 135             $book->addChapter($entry['title'], htmlspecialchars($entry['title']) . ".html", $chapter, true, EPub::EXTERNAL_REF_ADD);
 136             $log->logLine("Added chapter " . $entry['title']);
 137         }
 138
 139         if (DEBUG_POCHE) {
 140             $book->addChapter("Log", "Log.html", $content_start . $log->getLog() . "\n</pre>" . $bookEnd); // log generation
 141         }
 142         $book->finalize();
 143         $zipData = $book->sendBook($this->bookFileName);
 144     }
 145 }
 146
 147 class WallabagMobi extends WallabagEBooks
 148 {
 149         /**
 150         * MOBI Class
 151         * @author Sander Kromwijk
 152         */
 153
 154     private $_kindle_email;
 155
 156         public function produceMobi($sendByMail = FALSE)
 157         {
 158
 159         $mobi = new MOBI();
 160         $content = new MOBIFile();
 161
 162         $messages = new Messages(); // for later
 163
 164         $content->set("title", $this->bookTitle);
 165         $content->set("author", "wallabag");
 166         $content->set("subject", $this->bookTitle);
 167
 168         # introduction
 169         $content->appendParagraph('<div style="text-align:center;" ><p>' . _('Produced by wallabag with PHPMobi') . '</p><p>'. _('Please open <a href="https://github.com/wallabag/wallabag/issues" >an issue</a> if you have trouble with the display of this E-Book on your device.') . '</p></div>');
 170         $content->appendImage(imagecreatefrompng("themes/baggy/img/apple-touch-icon-152.png"));
 171         $content->appendPageBreak();
 172
 173         foreach ($this->entries as $item) {
 174             $content->appendChapterTitle($item['title']);
 175             $content->appendParagraph($item['content']);
 176             $content->appendPageBreak();
 177         }
 178         $mobi->setContentProvider($content);
 179
 180         if (!$sendByMail) {
 181             // we offer file to download
 182             $mobi->download($this->bookFileName.'.mobi');
 183         }
 184         else {
 185             // we send file to kindle
 186
 187             $char_in = array('/', '.', ',', ':', '|'); # we sanitize filename to avoid conflicts with special characters (for instance, / goes for a directory)
 188             $mobiExportName = preg_replace('/\s+/', '-', str_replace($char_in, '-', $this->bookFileName)) . '.mobi';
 189
 190             $file = 'cache/' . $mobiExportName;
 191             $mobi->save($file);
 192
 193             $file_size = filesize($file);
 194             $filename = basename($file);
 195             $handle = fopen($file, "r");
 196             $content = fread($handle, $file_size);
 197             fclose($handle);
 198             $content = chunk_split(base64_encode($content));
 199
 200             $uid = md5(uniqid(time()));
 201
 202             //generate header for mail
 203             $header  = "From: wallabag <". $this->wallabag->user->email .">\r\n";
 204             $header .= "MIME-Version: 1.0\r\n";
 205             $header .= "Content-Type: multipart/mixed; boundary=\"".$uid."\"\r\n\r\n";
 206             $header .= "This is a multi-part message in MIME format.\r\n";
 207             $header .= "--".$uid."\r\n";
 208             $header .= "Content-type:text/plain; charset=iso-8859-1\r\n";
 209             $header .= "Content-Transfer-Encoding: 7bit\r\n\r\n";
 210             $header .= "send via wallabag\r\n\r\n";
 211             $header .= "--".$uid."\r\n";
 212             $header .= "Content-Type: application/x-mobipocket-ebook; name=\"".$filename."\"\r\n";
 213             $header .= "Content-Transfer-Encoding: base64\r\n";
 214             $header .= "Content-Disposition: attachment; filename=\"".$filename."\"\r\n\r\n";
 215             $header .= $content."\r\n\r\n";
 216             $header .= "--".$uid."--";
 217
 218             # trying to get the kindle email adress
 219             if ($this->wallabag->user->getConfigValue('kindleemail'))
 220             {
 221                 #do a try...exeption here
 222                 mail( $this->wallabag->user->getConfigValue('kindleemail'), '[wallabag] ' . $this->bookTitle, "", $header );
 223                 $messages->add('s', _('The email has been sent to your kindle !'));
 224             }
 225             else
 226             {
 227                 $messages->add('e', _('You didn\'t set your kindle\'s email adress !'));
 228             }
 229         }
 230     }
 231 }
 232
 233 class WallabagPDF extends WallabagEbooks
 234 {
 235         public function producePDF()
 236         {
 237                 $mpdf = new mPDF('c');
 238
 239         # intro
 240
 241         $html = '<h1>' . $this->bookTitle . '<bookmark content="Cover" /></h1><div style="text-align:center;" >
 242         <p>' . _('Produced by wallabag with mPDF') . '</p>
 243         <p>'. _('Please open <a href="https://github.com/wallabag/wallabag/issues" >an issue</a> if you have trouble with the display of this E-Book on your device.') . '</p>
 244         <img src="themes/baggy/img/apple-touch-icon-152.png" /></div>';
 245         $html .= '<pagebreak type="next-odd" />';
 246         $i = 1;
 247
 248         foreach ($this->entries as $item) {
 249             $html .= '<h1>' . $item['title'] . '<bookmark content="' . $item['title'] . '" /></h1>';
 250             $html .= '<indexentry content="'. $item['title'] .'" />';
 251             $html .= $item['content'];
 252             $html .= '<pagebreak type="next-odd" />';
 253             $i = $i+1;
 254         }
 255
 256
 257         # headers
 258         $mpdf->SetHeader('{DATE j-m-Y}|{PAGENO}/{nb}|Produced with wallabag');
 259         $mpdf->SetFooter('{PAGENO}');
 260
 261         $mpdf->WriteHTML($html);
 262
 263         # remove characters that make mpdf bug
 264         $char_in = array('/', '.', ',', ':', '|');
 265         $pdfExportName = preg_replace('/\s+/', '-', str_replace($char_in, '-', $this->bookFileName . '.pdf'));
 266
 267         # index
 268         $html = '<h2>Index<bookmark content="Index" /></h2>
 269         <indexinsert cols="2" offset="5" usedivletters="on" div-font-size="15" gap="5" font="Trebuchet" div-font="sans-serif" links="on" />
 270         ';
 271
 272         $mpdf->WriteHTML($html);
 273
 274         $mpdf->Output('cache/' . $pdfExportName);
 275
 276         header('Content-Disposition: attachment; filename="' . $pdfExportName . '"');
 277
 278         header('Content-Transfer-Encoding: base64');
 279         header('Content-Type: application/pdf');
 280         echo file_get_contents('cache/' . $pdfExportName);
 281
 282         //exit;
 283         }
 284 }