Esempio n. 1
0
 /**
  * Build the Table of Contents. This is not strictly necessary, as most eReaders will build it from the navigation structure in the .ncx file.
  *
  * @param string $cssFileName   Include a link to this css file in the TOC html.
  * @param string $tocCSSClass   The TOC is a <div>, if you need special formatting, you can add a css class for that div. Default is "toc".
  * @param string $title         Title of the Table of contents. Default is "Table of Contents". Use this for ie. languages other than English.
  * @param bool   $addReferences include reference pages in the TOC, using the $referencesOrder array to determine the order of the pages in the TOC. Default is TRUE.
  * @param bool   $addToIndex    Add the TOC to the NCX index at the current leve/position. Default is FALSE
  * @param string $tocFileName   Change the default name of the TOC file. The default is "TOC.xhtml"
  *
  * @return bool
  */
 function buildTOC($cssFileName = null, $tocCSSClass = "toc", $title = "Table of Contents", $addReferences = true, $addToIndex = false, $tocFileName = "TOC.xhtml")
 {
     if ($this->isFinalized) {
         return false;
     }
     $this->buildTOC = true;
     $this->tocTitle = $title;
     $this->tocFileName = FileHelper::normalizeFileName($tocFileName);
     if (!empty($cssFileName)) {
         $this->tocCssFileName = FileHelper::normalizeFileName($cssFileName);
     }
     $this->tocCSSClass = $tocCSSClass;
     $this->tocAddReferences = $addReferences;
     $this->opf->addReference(Reference::TABLE_OF_CONTENTS, $title, $this->tocFileName);
     if (!($this->tocNavAdded = true)) {
         $this->opf->addItemRef("ref_" . Reference::TABLE_OF_CONTENTS, false);
         if ($addToIndex) {
             $navPoint = new NavPoint(StringHelper::decodeHtmlEntities($title), $this->tocFileName, "ref_" . Reference::TABLE_OF_CONTENTS);
             $this->ncx->addNavPoint($navPoint);
         } else {
             $this->ncx->referencesList[Reference::TABLE_OF_CONTENTS] = $this->tocFileName;
             $this->ncx->referencesName[Reference::TABLE_OF_CONTENTS] = $title;
         }
     }
     return true;
 }
Esempio n. 2
0
 /**
  * Get an image from a file or url, return it resized if the image exceeds the $maxImageWidth or $maxImageHeight directives.
  *
  * The return value is an array.
  * ['width'] is the width of the image.
  * ['height'] is the height of the image.
  * ['mime'] is the mime type of the image. Resized images are always in jpeg format.
  * ['image'] is the image data.
  * ['ext'] is the extension of the image file.
  *
  * @param EPub   $book
  * @param string $imageSource path or url to file.
  *
  * @return array|bool
  * @throws \Exception
  */
 public static function getImage($book, $imageSource)
 {
     $width = -1;
     $height = -1;
     $mime = "application/octet-stream";
     $ext = "";
     $image = FileHelper::getFileContents($imageSource);
     $ratio = 1;
     if ($image !== false && strlen($image) > 0) {
         if (BinStringStatic::startsWith(trim($image), '<svg') || (BinStringStatic::startsWith(trim($image), '<?xml') || strpos($image, '<svg') > 0)) {
             // SVG image.
             $xml = simplexml_load_string($image);
             $attr = $xml->attributes();
             $meta = ImageHelper::handleSVGAttribs($xml);
             $mime = "image/svg+xml";
             $ext = "svg";
             $width = $meta['width'];
             $height = $meta['height'];
             $ratio = ImageHelper::getImageScale($width, $height, $book->maxImageWidth, $book->maxImageHeight);
             if ($ratio < 1) {
                 $attr->width = $width * $ratio;
                 $attr->height = $height * $ratio;
             }
             $image = $xml->asXML();
         } else {
             $imageFile = imagecreatefromstring($image);
             if ($imageFile !== false) {
                 $width = ImageSX($imageFile);
                 $height = ImageSY($imageFile);
             }
             if (self::isGdInstalled()) {
                 @($type = exif_imagetype($imageSource));
                 $mime = image_type_to_mime_type($type);
             }
             if ($mime === "application/octet-stream") {
                 $mime = ImageHelper::getImageFileTypeFromBinary($image);
             }
             if ($mime === "application/octet-stream") {
                 $mime = MimeHelper::getMimeTypeFromUrl($imageSource);
             }
         }
     } else {
         return false;
     }
     if ($width <= 0 || $height <= 0) {
         return false;
     }
     if ($mime !== "image/svg+xml" && self::isGdInstalled()) {
         $ratio = ImageHelper::getImageScale($width, $height, $book->maxImageWidth, $book->maxImageHeight);
         if ($ratio < 1 || empty($mime)) {
             if ($mime == "image/png" || $book->isGifImagesEnabled === false && $mime == "image/gif") {
                 $image_o = imagecreatefromstring($image);
                 $image_p = imagecreatetruecolor($width * $ratio, $height * $ratio);
                 imagealphablending($image_p, false);
                 imagesavealpha($image_p, true);
                 imagealphablending($image_o, true);
                 imagecopyresampled($image_p, $image_o, 0, 0, 0, 0, $width * $ratio, $height * $ratio, $width, $height);
                 ob_start();
                 imagepng($image_p, null, 9);
                 $image = ob_get_contents();
                 ob_end_clean();
                 imagedestroy($image_o);
                 imagedestroy($image_p);
                 $ext = "png";
             } else {
                 if ($book->isGifImagesEnabled !== false && $mime == "image/gif") {
                     $tFileD = tempnam("BewareOfGeeksBearingGifs", "grD");
                     ResizeGif::ResizeByRatio($imageSource, $tFileD, $ratio);
                     $image = file_get_contents($tFileD);
                     unlink($tFileD);
                 } else {
                     $image_o = imagecreatefromstring($image);
                     $image_p = imagecreatetruecolor($width * $ratio, $height * $ratio);
                     imagecopyresampled($image_p, $image_o, 0, 0, 0, 0, $width * $ratio, $height * $ratio, $width, $height);
                     ob_start();
                     imagejpeg($image_p, null, 80);
                     $image = ob_get_contents();
                     ob_end_clean();
                     imagedestroy($image_o);
                     imagedestroy($image_p);
                     $mime = "image/jpeg";
                     $ext = "jpg";
                 }
             }
         }
     }
     if ($ext === "") {
         static $mimeToExt = array('image/jpeg' => 'jpg', 'image/gif' => 'gif', 'image/png' => 'png', 'image/svg+xml' => "svg");
         if (isset($mimeToExt[$mime])) {
             $ext = $mimeToExt[$mime];
         }
     }
     $rv = array();
     $rv['width'] = $width * $ratio;
     $rv['height'] = $height * $ratio;
     $rv['mime'] = $mime;
     $rv['image'] = $image;
     $rv['ext'] = $ext;
     return $rv;
 }
Esempio n. 3
0
 /**
  * Get file contents, using curl if available, else file_get_contents
  *
  * @param string $source
  * @param bool   $toTempFile
  *
  * @return bool|mixed|null|string
  */
 public static function getFileContents($source, $toTempFile = false)
 {
     $isExternal = preg_match('#^(http|ftp)s?://#i', $source) == 1;
     if ($isExternal && FileHelper::getIsCurlInstalled()) {
         $ch = curl_init();
         $outFile = null;
         $fp = null;
         curl_setopt($ch, CURLOPT_HEADER, 0);
         curl_setopt($ch, CURLOPT_URL, str_replace(" ", "%20", $source));
         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
         curl_setopt($ch, CURLOPT_BUFFERSIZE, 4096);
         curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
         // follow redirects
         curl_setopt($ch, CURLOPT_ENCODING, "");
         // handle all encodings
         curl_setopt($ch, CURLOPT_USERAGENT, "EPub (Version " . EPub::VERSION . ") by A. Grandt");
         // who am i
         curl_setopt($ch, CURLOPT_AUTOREFERER, true);
         // set referer on redirect
         curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 120);
         // timeout on connect
         curl_setopt($ch, CURLOPT_TIMEOUT, 120);
         // timeout on response
         curl_setopt($ch, CURLOPT_MAXREDIRS, 10);
         // stop after 10 redirects
         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
         // Disabled SSL Cert checks
         if ($toTempFile) {
             $outFile = tempnam(sys_get_temp_dir(), "EPub_v" . EPub::VERSION . "_");
             $fp = fopen($outFile, "w+b");
             curl_setopt($ch, CURLOPT_FILE, $fp);
             $res = curl_exec($ch);
             $info = curl_getinfo($ch);
             curl_close($ch);
             fclose($fp);
         } else {
             $res = curl_exec($ch);
             $info = curl_getinfo($ch);
             curl_close($ch);
         }
         if ($info['http_code'] == 200 && $res != false) {
             if ($toTempFile) {
                 return $outFile;
             }
             return $res;
         }
         return false;
     }
     if (FileHelper::getIsFileGetContentsInstalled() && (!$isExternal || FileHelper::getIsFileGetContentsExtInstalled())) {
         @($data = file_get_contents($source));
         return $data;
     }
     return false;
 }