inc/poche/WallabagEpub.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                 $entries = array($entry);
  34                 $bookTitle = $entry['title'];
  35                 $bookFileName = substr($bookTitle, 0, 200);
  36                 break;
  37             case 'all':
  38                 $entries = $this->wallabag->store->retrieveAll($this->wallabag->user->getId());
  39                 $bookTitle = sprintf(_('All my articles on '), date(_('d.m.y'))); #translatable because each country has it's own date format system
  40                 $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                 $entries = $this->wallabag->store->retrieveEntriesByTag($tag_id, $this->wallabag->user->getId());
  47                 $bookTitle = sprintf(_('Articles tagged %s'), $tag);
  48                 $bookFileName = substr(sprintf(_('Tag %s'), $tag), 0, 200);
  49                 break;
  50             case 'category':
  51                 $category = filter_var($this->value, FILTER_SANITIZE_STRING);
  52                 $entries = $this->wallabag->store->getEntriesByView($category, $this->wallabag->user->getId());
  53                 $bookTitle = sprintf(_('All articles in category %s'), $category);
  54                 $bookFileName = substr(sprintf(_('Category %s'), $category), 0, 200);
  55                 break;
  56             case 'search':
  57                 $search = filter_var($this->value, FILTER_SANITIZE_STRING);
  58                 $entries = $this->store->search($search, $this->wallabag->user->getId());
  59                 $bookTitle = sprintf(_('All articles for search %s'), $search);
  60                 $bookFileName = substr(sprintf(_('Search %s'), $search), 0, 200);
  61                 break;
  62             case 'default':
  63                 die(_('Uh, there is a problem while generating epub.'));
  64         }
  65     }
  66 }
  67
  68 class WallabagEpub extends WallabagEBooks
  69 {
  70     /**
  71      * handle ePub
  72      */
  73     public function produceEpub()
  74     {
  75         $content_start =
  76             "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
  77             . "<html xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:epub=\"http://www.idpf.org/2007/ops\">\n"
  78             . "<head>"
  79             . "<meta http-equiv=\"Default-Style\" content=\"text/html; charset=utf-8\" />\n"
  80             . "<title>wallabag articles book</title>\n"
  81             . "</head>\n"
  82             . "<body>\n";
  83
  84         $bookEnd = "</body>\n</html>\n";
  85
  86         $log = new Logger("wallabag", TRUE);
  87         $fileDir = CACHE;
  88
  89         $book = new EPub(EPub::BOOK_VERSION_EPUB3, DEBUG_POCHE);
  90         $log->logLine("new EPub()");
  91         $log->logLine("EPub class version: " . EPub::VERSION);
  92         $log->logLine("EPub Req. Zip version: " . EPub::REQ_ZIP_VERSION);
  93         $log->logLine("Zip version: " . Zip::VERSION);
  94         $log->logLine("getCurrentServerURL: " . $book->getCurrentServerURL());
  95         $log->logLine("getCurrentPageURL..: " . $book->getCurrentPageURL());
  96
  97         $book->setTitle($bookTitle);
  98         $book->setIdentifier("http://$_SERVER[HTTP_HOST]", EPub::IDENTIFIER_URI); // Could also be the ISBN number, prefered for published books, or a UUID.
  99         //$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.
 100         $book->setDescription(_("Some articles saved on my wallabag"));
 101         $book->setAuthor("wallabag", "wallabag");
 102         $book->setPublisher("wallabag", "wallabag"); // I hope this is a non existant address :)
 103         $book->setDate(time()); // Strictly not needed as the book date defaults to time().
 104         //$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.
 105         $book->setSourceURL("http://$_SERVER[HTTP_HOST]");
 106
 107         $book->addDublinCoreMetadata(DublinCore::CONTRIBUTOR, "PHP");
 108         $book->addDublinCoreMetadata(DublinCore::CONTRIBUTOR, "wallabag");
 109
 110         $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";
 111
 112         $log->logLine("Add Cover");
 113
 114         $fullTitle = "<h1> " . $bookTitle . "</h1>\n";
 115
 116         $book->setCoverImage("Cover.png", file_get_contents("themes/baggy/img/apple-touch-icon-152.png"), "image/png", $fullTitle);
 117
 118         $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>' . $bookEnd;
 119
 120         //$book->addChapter("Table of Contents", "TOC.xhtml", NULL, false, EPub::EXTERNAL_REF_IGNORE);
 121         $book->addChapter("Notices", "Cover2.html", $cover);
 122
 123         $book->buildTOC();
 124
 125         foreach ($entries as $entry) { //set tags as subjects
 126             $tags = $this->wallabag->store->retrieveTagsByEntry($entry['id']);
 127             foreach ($tags as $tag) {
 128                 $book->setSubject($tag['value']);
 129             }
 130
 131             $log->logLine("Set up parameters");
 132
 133             $chapter = $content_start . $entry['content'] . $bookEnd;
 134             $book->addChapter($entry['title'], htmlspecialchars($entry['title']) . ".html", $chapter, true, EPub::EXTERNAL_REF_ADD);
 135             $log->logLine("Added chapter " . $entry['title']);
 136         }
 137
 138         if (DEBUG_POCHE) {
 139             $book->addChapter("Log", "Log.html", $content_start . $log->getLog() . "\n</pre>" . $bookEnd); // log generation
 140         }
 141         $book->finalize();
 142         $zipData = $book->sendBook($bookFileName);
 143     }
 144 }
 145
 146 class WallabagMobi extends WallabagEBooks
 147 {
 148         /**
 149         * Adapted from News2Kindle
 150         * @author Jakub Westfalewski <jwest@jwest.pl>
 151         *
 152         */
 153
 154         public function produceMobi()
 155         {
 156                 $storage = new Storage('static');
 157                 $this->prepareData();
 158                 foreach ($entries as $i => $item) {
 159                         $content = $item['content'];
 160                         $images = new Images($storage, $content);
 161             $content = $images->convert();
 162                         $storage->add_content
 163             (
 164                 md5($item['title']),
 165                 mb_convert_encoding($item['title'], 'HTML-ENTITIES', 'utf-8'),
 166                 $content,
 167                 $item['url']],
 168                 ""
 169             );
 170                 }
 171                 $articles = $storage->get_contents();
 172                 $toc = array();
 173         $articles_count = count($articles);
 174
 175         foreach($articles as $article){
 176             if(array_key_exists($article->website->title, $toc)){
 177                 $toc[$article->website->title]->articles[] = $article;
 178             }else{
 179                 $toc[$article->website->title] = (object)array(
 180                     'articles' => array($article),
 181                     'title' => $article->website->title,
 182                     'streamId' => $article->website->streamId,
 183                     'url' => $article->website->htmlUrl,
 184                 );
 185             }
 186         }
 187
 188         $mobi = new MOBI();
 189         $mobi->setData($content);
 190         $mobi->setOptions(array(
 191             'title' => 'Articles from '.date('Y-m-d'),
 192             'author' => 'wallabag',
 193             'subject' => 'Articles from '.date('Y-m-d'),
 194         ));
 195
 196         $images = array();
 197
 198         //prepare images for mobi format
 199         foreach ( $storage->info('images') as $n => $image )
 200         {
 201             $images[$n] = new FileRecord(new Record(file_get_contents($storage->get_path() . $image)));
 202         }
 203
 204         $mobi->setImages($images);
 205         $mobi->save( $storage->get_path(FALSE) . 'articles-' . date('Y-m-d') . '.mobi');
 206
 207         $storage->clean();
 208
 209         if ($send) {
 210                 $files = glob($storage->get_path(FALSE).'*.mobi');
 211                 $mail = new Send(KINDLEMAIL,MAIL);
 212                 foreach ( $files as $file_mobi )
 213                 {
 214                 $mail->send( $file_mobi );
 215                 }
 216                 // clean cache
 217                 foreach ( $files as $file_mobi )
 218                 {
 219                         unlink( $file_mobi );
 220                 }
 221         }
 222         }
 223 }
 224
 225 class WallabagPDF extends WallabagEbooks
 226 {
 227         public function producePDF()
 228         {
 229                 $mpdf = new mPDF('c');
 230
 231                 $mpdf->WriteHTML($html);
 232                 $mpdf->Output();
 233                 exit;
 234         }
 235 }