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1<?php
2/**
3 * Create an ePub compatible book file.
4 *
5 * Please note, once finalized a book can no longer have chapters of data added or changed.
6 *
7 * License: GNU LGPL, Attribution required for commercial implementations, requested for everything else.
8 *
9 * Thanks to: Adam Schmalhofer and Kirstyn Fox for invaluable input and for "nudging" me in the right direction :)
10 *
11 * @author A. Grandt <php@grandt.com>
12 * @copyright 2009-2014 A. Grandt
13 * @license GNU LGPL 2.1
14 * @version 3.20
15 * @link http://www.phpclasses.org/package/6115
16 * @link https://github.com/Grandt/PHPePub
17 * @uses Zip.php version 1.50; http://www.phpclasses.org/browse/package/6110.html or https://github.com/Grandt/PHPZip
18 */
19class EPub {
20 const VERSION = 3.20;
21 const REQ_ZIP_VERSION = 1.60;
22
23 const IDENTIFIER_UUID = 'UUID';
24 const IDENTIFIER_URI = 'URI';
25 const IDENTIFIER_ISBN = 'ISBN';
26
27 /** Ignore all external references, and do not process the file for these */
28 const EXTERNAL_REF_IGNORE = 0;
29 /** Process the file for external references and add them to the book */
30 const EXTERNAL_REF_ADD = 1;
31 /** Process the file for external references and add them to the book, but remove images, and img tags */
32 const EXTERNAL_REF_REMOVE_IMAGES = 2;
33 /** Process the file for external references and add them to the book, but replace images, and img tags with [image] */
34 const EXTERNAL_REF_REPLACE_IMAGES = 3;
35
36 const DIRECTION_LEFT_TO_RIGHT = "ltr";
37 const DIRECTION_RIGHT_TO_LEFT = "rtl";
38
39 const BOOK_VERSION_EPUB2 = "2.0";
40 const BOOK_VERSION_EPUB3 = "3.0";
41
42 private $bookVersion = EPub::BOOK_VERSION_EPUB2;
43
44 public $maxImageWidth = 768;
45 public $maxImageHeight = 1024;
46
47 public $splitDefaultSize = 250000;
48 /** Gifs can crash some early ADE based readers, and are disabled by default.
49 * getImage will convert these if it can, unless this is set to TRUE.
50 */
51 public $isGifImagesEnabled = FALSE;
52 public $isReferencesAddedToToc = TRUE;
53
54 private $zip;
55
56 private $title = "";
57 private $language = "en";
58 private $identifier = "";
59 private $identifierType = "";
60 private $description = "";
61 private $author = "";
62 private $authorSortKey = "";
63 private $publisherName = "";
64 private $publisherURL = "";
65 private $date = 0;
66 private $rights = "";
67 private $coverage = "";
68 private $relation = "";
69 private $sourceURL = "";
70
71 private $chapterCount = 0;
72 private $opf = NULL;
73 private $ncx = NULL;
74 private $isFinalized = FALSE;
75 private $isCoverImageSet = FALSE;
76 private $buildTOC = FALSE;
77 private $tocTitle = NULL;
78 private $tocFileName = NULL;
79 private $tocCSSClass = NULL;
80 private $tocAddReferences = FALSE;
81 private $tocCssFileName = NULL;
82
83 private $fileList = array();
84 private $writingDirection = EPub::DIRECTION_LEFT_TO_RIGHT;
85 private $languageCode = "en";
86
87 /**
88 * Used for building the TOC.
89 * If this list is overwritten it MUST contain at least "text" as an element.
90 */
91 public $referencesOrder = NULL;
92
93 private $dateformat = 'Y-m-d\TH:i:s.000000P'; // ISO 8601 long
94 private $dateformatShort = 'Y-m-d'; // short date format to placate ePubChecker.
95 private $headerDateFormat = "D, d M Y H:i:s T";
96
97 protected $isCurlInstalled;
98 protected $isGdInstalled;
99 protected $isExifInstalled;
100 protected $isFileGetContentsInstalled;
101 protected $isFileGetContentsExtInstalled;
102
103 private $bookRoot = "OEBPS/";
104 private $docRoot = NULL;
105 private $EPubMark = TRUE;
106 private $generator = "";
107
108 private $log = NULL;
109 public $isLogging = TRUE;
110
111 public $encodeHTML = FALSE;
112
113 private $mimetypes = array(
114 "js" => "application/x-javascript", "swf" => "application/x-shockwave-flash", "xht" => "application/xhtml+xml", "xhtml" => "application/xhtml+xml", "zip" => "application/zip",
115 "aif" => "audio/x-aiff", "aifc" => "audio/x-aiff", "aiff" => "audio/x-aiff", "au" => "audio/basic", "kar" => "audio/midi", "m3u" => "audio/x-mpegurl", "mid" => "audio/midi", "midi" => "audio/midi", "mp2" => "audio/mpeg", "mp3" => "audio/mpeg", "mpga" => "audio/mpeg", "oga" => "audio/ogg", "ogg" => "audio/ogg", "ra" => "audio/x-realaudio", "ram" => "audio/x-pn-realaudio", "rm" => "audio/x-pn-realaudio", "rpm" => "audio/x-pn-realaudio-plugin", "snd" => "audio/basic", "wav" => "audio/x-wav",
116 "bmp" => "image/bmp", "djv" => "image/vnd.djvu", "djvu" => "image/vnd.djvu", "gif" => "image/gif", "ief" => "image/ief", "jpe" => "image/jpeg", "jpeg" => "image/jpeg", "jpg" => "image/jpeg", "pbm" => "image/x-portable-bitmap", "pgm" => "image/x-portable-graymap", "png" => "image/png", "pnm" => "image/x-portable-anymap", "ppm" => "image/x-portable-pixmap", "ras" => "image/x-cmu-raster", "rgb" => "image/x-rgb", "tif" => "image/tif", "tiff" => "image/tiff", "wbmp" => "image/vnd.wap.wbmp", "xbm" => "image/x-xbitmap", "xpm" => "image/x-xpixmap", "xwd" => "image/x-windowdump",
117 "asc" => "text/plain", "css" => "text/css", "etx" => "text/x-setext", "htm" => "text/html", "html" => "text/html", "rtf" => "text/rtf", "rtx" => "text/richtext", "sgm" => "text/sgml", "sgml" => "text/sgml", "tsv" => "text/tab-seperated-values", "txt" => "text/plain", "wml" => "text/vnd.wap.wml", "wmls" => "text/vnd.wap.wmlscript", "xml" => "text/xml", "xsl" => "text/xml",
118 "avi" => "video/x-msvideo", "mov" => "video/quicktime", "movie" => "video/x-sgi-movie", "mp4" => "video/mp4", "mpe" => "video/mpeg", "mpeg" => "video/mpeg", "mpg" => "video/mpeg", "mxu" => "video/vnd.mpegurl", "ogv" => "video/ogg", "qt" => "video/quicktime", "webm" => "video/webm");
119
120 // These are the ONLY allowed types in that these are the ones ANY reader must support, any other MUST have the fallback attribute pointing to one of these.
121 private $coreMediaTypes = array("image/gif", "image/jpeg", "image/png", "image/svg+xml", "application/xhtml+xml", "application/x-dtbook+xml", "application/xml", "application/x-dtbncx+xml", "text/css", "text/x-oeb1-css", "text/x-oeb1-document");
122
123 private $opsContentTypes = array("application/xhtml+xml", "application/x-dtbook+xml", "application/xml", "application/x-dtbncx+xml", "text/x-oeb1-document");
124
125 private $forbiddenCharacters = array("?", "[", "]", "/", "\\", "=", "<", ">", ":", ";", ",", "'", "\"", "&", "$", "#", "*", "(", ")", "|", "~", "`", "!", "{", "}", "%");
126
127 private $htmlContentHeader = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1//EN\"\n \"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd\">\n<html xmlns=\"http://www.w3.org/1999/xhtml\">\n<head><meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />\n<title></title>\n</head>\n<body>\n";
128 private $htmlContentFooter = "</body>\n</html>\n";
129
130 /**
131 * Class constructor.
132 *
133 * @return void
134 */
135 function __construct($bookVersion = EPub::BOOK_VERSION_EPUB2, $languageCode = "en", $writingDirection = EPub::DIRECTION_LEFT_TO_RIGHT) {
136 include_once("Zip.php");
137 include_once("Logger.php");
138
139 $this->bookVersion = $bookVersion;
140 $this->writingDirection = $writingDirection;
141 $this->languageCode = $languageCode;
142
143 $this->log = new Logger("EPub", $this->isLogging);
144
145 /* Prepare Logging. Just in case it's used. later */
146 if ($this->isLogging) {
147 $this->log->logLine("EPub class version....: " . self::VERSION);
148 $this->log->logLine("EPub req. Zip version.: " . self::REQ_ZIP_VERSION);
149 $this->log->logLine("Zip version...........: " . Zip::VERSION);
150 $this->log->dumpInstalledModules();
151 }
152
153 if (!defined("Zip::VERSION") || Zip::VERSION < self::REQ_ZIP_VERSION) {
154 die("<p>EPub version " . self::VERSION . " requires Zip.php at version " . self::REQ_ZIP_VERSION . " or higher.<br />You can obtain the latest version from <a href=\"http://www.phpclasses.org/browse/package/6110.html\">http://www.phpclasses.org/browse/package/6110.html</a>.</p>");
155 }
156
157 include_once("EPubChapterSplitter.php");
158 include_once("EPub.HtmlEntities.php");
159 include_once("EPub.NCX.php");
160 include_once("EPub.OPF.php");
161
162 $this->initialize();
163 }
164
165 /**
166 * Class destructor
167 *
168 * @return void
169 * @TODO make sure elements in the destructor match the current class elements
170 */
171 function __destruct() {
172 unset($this->bookVersion, $this->maxImageWidth, $this->maxImageHeight);
173 unset($this->splitDefaultSize, $this->isGifImagesEnabled, $this->isReferencesAddedToToc);
174 unset($this->zip, $this->title, $this->language, $this->identifier, $this->identifierType);
175 unset($this->description, $this->author, $this->authorSortKey, $this->publisherName);
176 unset($this->publisherURL, $this->date, $this->rights, $this->coverage, $this->relation);
177 unset($this->sourceURL, $this->chapterCount, $this->opf, $this->ncx, $this->isFinalized);
178 unset($this->isCoverImageSet, $this->fileList, $this->writingDirection, $this->languageCode);
179 unset($this->referencesOrder, $this->dateformat, $this->dateformatShort, $this->headerDateFormat);
180 unset($this->isCurlInstalled, $this->isGdInstalled, $this->isExifInstalled);
181 unset($this->isFileGetContentsInstalled, $this->isFileGetContentsExtInstalled, $this->bookRoot);
182 unset($this->docRoot, $this->EPubMark, $this->generator, $this->log, $this->isLogging);
183 unset($this->encodeHTML, $this->mimetypes, $this->coreMediaTypes, $this->opsContentTypes);
184 unset($this->forbiddenCharacters, $this->htmlContentHeader, $this->htmlContentFooter);
185 unset($this->buildTOC, $this->tocTitle, $this->tocCSSClass, $this->tocAddReferences);
186 unset($this->tocFileName, $this->tocCssFileName);
187 }
188
189 /**
190 * initialize defaults.
191 */
192 private function initialize() {
193 $this->referencesOrder = array(
194 Reference::COVER => "Cover Page",
195 Reference::TITLE_PAGE => "Title Page",
196 Reference::ACKNOWLEDGEMENTS => "Acknowledgements",
197 Reference::BIBLIOGRAPHY => "Bibliography",
198 Reference::COLOPHON => "Colophon",
199 Reference::COPYRIGHT_PAGE => "Copyright",
200 Reference::DEDICATION => "Dedication",
201 Reference::EPIGRAPH => "Epigraph",
202 Reference::FOREWORD => "Foreword",
203 Reference::TABLE_OF_CONTENTS => "Table of Contents",
204 Reference::NOTES => "Notes",
205 Reference::PREFACE => "Preface",
206 Reference::TEXT => "First Page",
207 Reference::LIST_OF_ILLUSTRATIONS => "List of Illustrations",
208 Reference::LIST_OF_TABLES => "List of Tables",
209 Reference::GLOSSARY => "Glossary",
210 Reference::INDEX => "Index");
211
212 $this->docRoot = filter_input(INPUT_SERVER, "DOCUMENT_ROOT") . "/";
213
214 $this->isCurlInstalled = extension_loaded('curl') && function_exists('curl_version');
215 $this->isGdInstalled = extension_loaded('gd') && function_exists('gd_info');
216 $this->isExifInstalled = extension_loaded('exif') && function_exists('exif_imagetype');
217 $this->isFileGetContentsInstalled = function_exists('file_get_contents');
218 $this->isFileGetContentsExtInstalled = $this->isFileGetContentsInstalled && ini_get('allow_url_fopen');
219
220 $this->zip = new Zip();
221 $this->zip->setExtraField(FALSE);
222 $this->zip->addFile("application/epub+zip", "mimetype");
223 $this->zip->setExtraField(TRUE);
224 $this->zip->addDirectory("META-INF");
225
226 $this->content = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<container version=\"1.0\" xmlns=\"urn:oasis:names:tc:opendocument:xmlns:container\">\n\t<rootfiles>\n\t\t<rootfile full-path=\"" . $this->bookRoot . "book.opf\" media-type=\"application/oebps-package+xml\" />\n\t</rootfiles>\n</container>\n";
227
228 if (!$this->isEPubVersion2()) {
229 $this->htmlContentHeader = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
230 . "<html xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:epub=\"http://www.idpf.org/2007/ops\">\n"
231 . "<head>"
232 . "<meta http-equiv=\"Default-Style\" content=\"text/html; charset=utf-8\" />\n"
233 . "<title></title>\n"
234 . "</head>\n"
235 . "<body>\n";
236 }
237
238 $this->zip->addFile($this->content, "META-INF/container.xml", 0, NULL, FALSE);
239 $this->content = NULL;
240 $this->ncx = new Ncx(NULL, NULL, NULL, $this->languageCode, $this->writingDirection);
241 $this->opf = new Opf();
242 $this->ncx->setVersion($this->bookVersion);
243 $this->opf->setVersion($this->bookVersion);
244 $this->opf->addItem("ncx", "book.ncx", Ncx::MIMETYPE);
245 $this->chapterCount = 0;
246 }
247
248 /**
249 * Add dynamically generated data as a file to the book.
250 *
251 * @param string $fileName Filename to use for the file, must be unique for the book.
252 * @param string $fileId Unique identifier for the file.
253 * @param string $fileData File data
254 * @param string $mimetype file mime type
255 * @return bool $success
256 */
257 function addFile($fileName, $fileId, $fileData, $mimetype) {
258 if ($this->isFinalized || array_key_exists($fileName, $this->fileList)) {
259 return FALSE;
260 }
261
262 $fileName = $this->normalizeFileName($fileName);
263
264 $compress = (strpos($mimetype, "image/") !== 0);
265
266 $this->zip->addFile($fileData, $this->bookRoot.$fileName, 0, NULL, $compress);
267 $this->fileList[$fileName] = $fileName;
268 $this->opf->addItem($fileId, $fileName, $mimetype);
269 return TRUE;
270 }
271
272 /**
273 * Add a large file directly from the filestystem to the book.
274 *
275 * @param string $fileName Filename to use for the file, must be unique for the book.
276 * @param string $fileId Unique identifier for the file.
277 * @param string $filePath File path
278 * @param string $mimetype file mime type
279 * @return bool $success
280 */
281 function addLargeFile($fileName, $fileId, $filePath, $mimetype) {
282 if ($this->isFinalized || array_key_exists($fileName, $this->fileList)) {
283 return FALSE;
284 }
285 $fileName = $this->normalizeFileName($fileName);
286
287 if ($this->zip->addLargeFile($filePath, $this->bookRoot.$fileName)) {
288 $this->fileList[$fileName] = $fileName;
289 $this->opf->addItem($fileId, $fileName, $mimetype);
290 return TRUE;
291 }
292 return FALSE;
293 }
294
295 /**
296 * Add a CSS file to the book.
297 *
298 * @param string $fileName Filename to use for the CSS file, must be unique for the book.
299 * @param string $fileId Unique identifier for the file.
300 * @param string $fileData CSS data
301 * @param int $externalReferences How to handle external references, EPub::EXTERNAL_REF_IGNORE, EPub::EXTERNAL_REF_ADD or EPub::EXTERNAL_REF_REMOVE_IMAGES? See documentation for <code>processCSSExternalReferences</code> for explanation. Default is EPub::EXTERNAL_REF_IGNORE.
302 * @param string $baseDir Default is "", meaning it is pointing to the document root. NOT used if $externalReferences is set to EPub::EXTERNAL_REF_IGNORE.
303 *
304 * @return bool $success
305 */
306 function addCSSFile($fileName, $fileId, $fileData, $externalReferences = EPub::EXTERNAL_REF_IGNORE, $baseDir = "") {
307 if ($this->isFinalized || array_key_exists($fileName, $this->fileList)) {
308 return FALSE;
309 }
310 $fileName = Zip::getRelativePath($fileName);
311 $fileName = preg_replace('#^[/\.]+#i', "", $fileName);
312
313 if ($externalReferences !== EPub::EXTERNAL_REF_IGNORE) {
314 $cssDir = pathinfo($fileName);
315 $cssDir = preg_replace('#^[/\.]+#i', "", $cssDir["dirname"] . "/");
316 if (!empty($cssDir)) {
317 $cssDir = preg_replace('#[^/]+/#i', "../", $cssDir);
318 }
319
320 $this->processCSSExternalReferences($fileData, $externalReferences, $baseDir, $cssDir);
321 }
322
323 $this->addFile($fileName, "css_" . $fileId, $fileData, "text/css");
324
325 return TRUE;
326 }
327
328 /**
329 * Add a chapter to the book, as a chapter should not exceed 250kB, you can parse an array with multiple parts as $chapterData.
330 * These will still only show up as a single chapter in the book TOC.
331 *
332 * @param string $chapterName Name of the chapter, will be use din the TOC
333 * @param string $fileName Filename to use for the chapter, must be unique for the book.
334 * @param string $chapter Chapter text in XHTML or array $chapterData valid XHTML data for the chapter. File should NOT exceed 250kB.
335 * @param bool $autoSplit Should the chapter be split if it exceeds the default split size? Default=FALSE, only used if $chapterData is a string.
336 * @param int $externalReferences How to handle external references, EPub::EXTERNAL_REF_IGNORE, EPub::EXTERNAL_REF_ADD or EPub::EXTERNAL_REF_REMOVE_IMAGES? See documentation for <code>processChapterExternalReferences</code> for explanation. Default is EPub::EXTERNAL_REF_IGNORE.
337 * @param string $baseDir Default is "", meaning it is pointing to the document root. NOT used if $externalReferences is set to EPub::EXTERNAL_REF_IGNORE.
338 * @return mixed $success FALSE if the addition failed, else the new NavPoint.
339 */
340 function addChapter($chapterName, $fileName, $chapterData = NULL, $autoSplit = FALSE, $externalReferences = EPub::EXTERNAL_REF_IGNORE, $baseDir = "") {
341 if ($this->isFinalized) {
342 return FALSE;
343 }
344 $fileName = Zip::getRelativePath($fileName);
345 $fileName = preg_replace('#^[/\.]+#i', "", $fileName);
346
347 $chapter = $chapterData;
348 if ($autoSplit && is_string($chapterData) && mb_strlen($chapterData) > $this->splitDefaultSize) {
349 $splitter = new EPubChapterSplitter();
350
351 $chapterArray = $splitter->splitChapter($chapterData);
352 if (count($chapterArray) > 1) {
353 $chapter = $chapterArray;
354 }
355 }
356
357 if (!empty($chapter) && is_string($chapter)) {
358 if ($externalReferences !== EPub::EXTERNAL_REF_IGNORE) {
359 $htmlDirInfo = pathinfo($fileName);
360 $htmlDir = preg_replace('#^[/\.]+#i', "", $htmlDirInfo["dirname"] . "/");
361 $this->processChapterExternalReferences($chapter, $externalReferences, $baseDir, $htmlDir);
362 }
363
364 if ($this->encodeHTML === TRUE) {
365 $chapter = $this->encodeHtml($chapter);
366 }
367
368 $this->chapterCount++;
369 $this->addFile($fileName, "chapter" . $this->chapterCount, $chapter, "application/xhtml+xml");
370 $this->opf->addItemRef("chapter" . $this->chapterCount);
371
372 $navPoint = new NavPoint($this->decodeHtmlEntities($chapterName), $fileName, "chapter" . $this->chapterCount);
373 $this->ncx->addNavPoint($navPoint);
374 $this->ncx->chapterList[$chapterName] = $navPoint;
375 } else if (is_array($chapter)) {
376 $fileNameParts = pathinfo($fileName);
377 $extension = $fileNameParts['extension'];
378 $name = $fileNameParts['filename'];
379
380 $partCount = 0;
381 $this->chapterCount++;
382
383 $oneChapter = each($chapter);
384 while ($oneChapter) {
385 list($k, $v) = $oneChapter;
386 if ($this->encodeHTML === TRUE) {
387 $v = $this->encodeHtml($v);
388 }
389
390 if ($externalReferences !== EPub::EXTERNAL_REF_IGNORE) {
391 $this->processChapterExternalReferences($v, $externalReferences, $baseDir);
392 }
393 $partCount++;
394 $partName = $name . "_" . $partCount;
395 $this->addFile($partName . "." . $extension, $partName, $v, "application/xhtml+xml");
396 $this->opf->addItemRef($partName);
397
398 $oneChapter = each($chapter);
399 }
400 $partName = $name . "_1." . $extension;
401 $navPoint = new NavPoint($this->decodeHtmlEntities($chapterName), $partName, $partName);
402 $this->ncx->addNavPoint($navPoint);
403
404 $this->ncx->chapterList[$chapterName] = $navPoint;
405 } else if (!isset($chapterData) && strpos($fileName, "#") > 0) {
406 $this->chapterCount++;
407 //$this->opf->addItemRef("chapter" . $this->chapterCount);
408
409 $navPoint = new NavPoint($this->decodeHtmlEntities($chapterName), $fileName, "chapter" . $this->chapterCount);
410 $this->ncx->addNavPoint($navPoint);
411 $this->ncx->chapterList[$chapterName] = $navPoint;
412 } else if (!isset($chapterData) && $fileName=="TOC.xhtml") {
413 $this->chapterCount++;
414 $this->opf->addItemRef("toc");
415
416 $navPoint = new NavPoint($this->decodeHtmlEntities($chapterName), $fileName, "chapter" . $this->chapterCount);
417 $this->ncx->addNavPoint($navPoint);
418 $this->ncx->chapterList[$chapterName] = $navPoint;
419 }
420 return $navPoint;
421 }
422
423 /**
424 * Add one chapter level.
425 *
426 * Subsequent chapters will be added to this level.
427 *
428 * @param string $navTitle
429 * @param string $navId
430 * @param string $navClass
431 * @param int $isNavHidden
432 * @param string $writingDirection
433 * @return NavPoint The new NavPoint for that level.
434 */
435 function subLevel($navTitle = NULL, $navId = NULL, $navClass = NULL, $isNavHidden = FALSE, $writingDirection = NULL) {
436 return $this->ncx->subLevel($this->decodeHtmlEntities($navTitle), $navId, $navClass, $isNavHidden, $writingDirection);
437 }
438
439 /**
440 * Step back one chapter level.
441 *
442 * Subsequent chapters will be added to this chapters parent level.
443 */
444 function backLevel() {
445 $this->ncx->backLevel();
446 }
447
448 /**
449 * Step back to the root level.
450 *
451 * Subsequent chapters will be added to the rooot NavMap.
452 */
453 function rootLevel() {
454 $this->ncx->rootLevel();
455 }
456
457 /**
458 * Step back to the given level.
459 * Useful for returning to a previous level from deep within the structure.
460 * Values below 2 will have the same effect as rootLevel()
461 *
462 * @param int $newLevel
463 */
464 function setCurrentLevel($newLevel) {
465 $this->ncx->setCurrentLevel($newLevel);
466 }
467
468 /**
469 * Get current level count.
470 * The indentation of the current structure point.
471 *
472 * @return current level count;
473 */
474 function getCurrentLevel() {
475 return $this->ncx->getCurrentLevel();
476 }
477
478 /**
479 * Wrap ChapterContent with Head and Footer
480 *
481 * @param $content
482 * @return string $content
483 */
484 private function wrapChapter($content) {
485 return $this->htmlContentHeader . "\n" . $content . "\n" . $this->htmlContentFooter;
486 }
487
488 /**
489 * Reference pages is usually one or two pages for items such as Table of Contents, reference lists, Author notes or Acknowledgements.
490 * These do not show up in the regular navigation list.
491 *
492 * As they are supposed to be short.
493 *
494 * @param string $pageName Name of the chapter, will be use din the TOC
495 * @param string $fileName Filename to use for the chapter, must be unique for the book.
496 * @param string $pageData Page content in XHTML. File should NOT exceed 250kB.
497 * @param string $reference Reference key
498 * @param int $externalReferences How to handle external references. See documentation for <code>processChapterExternalReferences</code> for explanation. Default is EPub::EXTERNAL_REF_IGNORE.
499 * @param string $baseDir Default is "", meaning it is pointing to the document root. NOT used if $externalReferences is set to EPub::EXTERNAL_REF_IGNORE.
500 * @return bool $success
501 */
502 function addReferencePage($pageName, $fileName, $pageData, $reference, $externalReferences = EPub::EXTERNAL_REF_IGNORE, $baseDir = "") {
503 if ($this->isFinalized) {
504 return FALSE;
505 }
506 $fileName = Zip::getRelativePath($fileName);
507 $fileName = preg_replace('#^[/\.]+#i', "", $fileName);
508
509
510 if (!empty($pageData) && is_string($pageData)) {
511 if ($this->encodeHTML === TRUE) {
512 $pageData = $this->encodeHtml($pageData);
513 }
514
515 $this->wrapChapter($pageData);
516
517 if ($externalReferences !== EPub::EXTERNAL_REF_IGNORE) {
518 $htmlDirInfo = pathinfo($fileName);
519 $htmlDir = preg_replace('#^[/\.]+#i', "", $htmlDirInfo["dirname"] . "/");
520 $this->processChapterExternalReferences($pageData, $externalReferences, $baseDir, $htmlDir);
521 }
522
523 $this->addFile($fileName, "ref_" . $reference, $pageData, "application/xhtml+xml");
524
525 if ($reference !== Reference::TABLE_OF_CONTENTS || !isset($this->ncx->referencesList[$reference])) {
526 $this->opf->addItemRef("ref_" . $reference, FALSE);
527 $this->opf->addReference($reference, $pageName, $fileName);
528
529 $this->ncx->referencesList[$reference] = $fileName;
530 $this->ncx->referencesName[$reference] = $pageName;
531 }
532 return TRUE;
533 }
534 return TRUE;
535 }
536
537 /**
538 * Add custom metadata to the book.
539 *
540 * It is up to the builder to make sure there are no collisions. Metadata are just key value pairs.
541 *
542 * @param string $name
543 * @param string $content
544 */
545 function addCustomMetadata($name, $content) {
546 $this->opf->addMeta($name, $content);
547 }
548
549 /**
550 * Add DublinCore metadata to the book
551 *
552 * Use the DublinCore constants included in EPub, ie DublinCore::DATE
553 *
554 * @param string $dublinCore name
555 * @param string $value
556 */
557 function addDublinCoreMetadata($dublinCoreConstant, $value) {
558 if ($this->isFinalized) {
559 return;
560 }
561
562 $this->opf->addDCMeta($dublinCoreConstant, $this->decodeHtmlEntities($value));
563 }
564
565 /**
566 * Add a cover image to the book.
567 * If the $imageData is not set, the function assumes the $fileName is the path to the image file.
568 *
569 * The styling and structure of the generated XHTML is heavily inspired by the XHTML generated by Calibre.
570 *
571 * @param string $fileName Filename to use for the image, must be unique for the book.
572 * @param string $imageData Binary image data
573 * @param string $mimetype Image mimetype, such as "image/jpeg" or "image/png".
574 * @return bool $success
575 */
576 function setCoverImage($fileName, $imageData = NULL, $mimetype = NULL) {
577 if ($this->isFinalized || $this->isCoverImageSet || array_key_exists("CoverPage.html", $this->fileList)) {
578 return FALSE;
579 }
580
581 if ($imageData == NULL) {
582 // assume $fileName is the valid file path.
583 if (!file_exists($fileName)) {
584 // Attempt to locate the file using the doc root.
585 $rp = realpath($this->docRoot . "/" . $fileName);
586
587 if ($rp !== FALSE) {
588 // only assign the docroot path if it actually exists there.
589 $fileName = $rp;
590 }
591 }
592 $image = $this->getImage($fileName);
593 $imageData = $image['image'];
594 $mimetype = $image['mime'];
595 $fileName = preg_replace("#\.[^\.]+$#", "." . $image['ext'], $fileName);
596 }
597
598
599 $path = pathinfo($fileName);
600 $imgPath = "images/" . $path["basename"];
601
602 if (empty($mimetype) && file_exists($fileName)) {
603 list($width, $height, $type, $attr) = getimagesize($fileName);
604 $mimetype = image_type_to_mime_type($type);
605 }
606 if (empty($mimetype)) {
607 $ext = strtolower($path['extension']);
608 if ($ext == "jpg") {
609 $ext = "jpeg";
610 }
611 $mimetype = "image/" . $ext;
612 }
613
614 $coverPage = "";
615
616 if ($this->isEPubVersion2()) {
617 $coverPage = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
618 . "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1//EN\"\n"
619 . " \"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd\">\n"
620 . "<html xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:epub=\"http://www.idpf.org/2007/ops\" xml:lang=\"en\">\n"
621 . "\t<head>\n"
622 . "\t\t<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\"/>\n"
623 . "\t\t<title>Cover Image</title>\n"
624 . "\t\t<link type=\"text/css\" rel=\"stylesheet\" href=\"Styles/CoverPage.css\" />\n"
625 . "\t</head>\n"
626 . "\t<body>\n"
627 . "\t\t<div>\n"
628 . "\t\t\t<img src=\"" . $imgPath . "\" alt=\"Cover image\" style=\"height: 100%\"/>\n"
629 . "\t\t</div>\n"
630 . "\t</body>\n"
631 . "</html>\n";
632 } else {
633 $coverPage = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
634 . "<html xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:epub=\"http://www.idpf.org/2007/ops\">\n"
635 . "<head>"
636 . "\t<meta http-equiv=\"Default-Style\" content=\"text/html; charset=utf-8\" />\n"
637 . "\t\t<title>Cover Image</title>\n"
638 . "\t\t<link type=\"text/css\" rel=\"stylesheet\" href=\"Styles/CoverPage.css\" />\n"
639 . "\t</head>\n"
640 . "\t<body>\n"
641 . "\t\t<section epub:type=\"cover\">\n"
642 . "\t\t\t<img src=\"" . $imgPath . "\" alt=\"Cover image\" style=\"height: 100%\"/>\n"
643 . "\t\t</section>\n"
644 . "\t</body>\n"
645 . "</html>\n";
646 }
647 $coverPageCss = "@page, body, div, img {\n"
648 . "\tpadding: 0pt;\n"
649 . "\tmargin:0pt;\n"
650 . "}\n\nbody {\n"
651 . "\ttext-align: center;\n"
652 . "}\n";
653
654 $this->addCSSFile("Styles/CoverPage.css", "CoverPageCss", $coverPageCss);
655 $this->addFile($imgPath, "CoverImage", $imageData, $mimetype);
656 $this->addReferencePage("CoverPage", "CoverPage.xhtml", $coverPage, "cover");
657 $this->isCoverImageSet = TRUE;
658 return TRUE;
659 }
660
661 /**
662 * Process external references from a HTML to the book. The chapter itself is not stored.
663 * the HTML is scanned for &lt;link..., &lt;style..., and &lt;img tags.
664 * Embedded CSS styles and links will also be processed.
665 * Script tags are not processed, as scripting should be avoided in e-books.
666 *
667 * EPub keeps track of added files, and duplicate files referenced across multiple
668 * chapters, are only added once.
669 *
670 * If the $doc is a string, it is assumed to be the content of an HTML file,
671 * else is it assumes to be a DOMDocument.
672 *
673 * Basedir is the root dir the HTML is supposed to "live" in, used to resolve
674 * relative references such as <code>&lt;img src="../images/image.png"/&gt;</code>
675 *
676 * $externalReferences determines how the function will handle external references.
677 *
678 * @param mixed &$doc (referenced)
679 * @param int $externalReferences How to handle external references, EPub::EXTERNAL_REF_IGNORE, EPub::EXTERNAL_REF_ADD or EPub::EXTERNAL_REF_REMOVE_IMAGES? Default is EPub::EXTERNAL_REF_ADD.
680 * @param string $baseDir Default is "", meaning it is pointing to the document root.
681 * @param string $htmlDir The path to the parent HTML file's directory from the root of the archive.
682 *
683 * @return bool FALSE if uncuccessful (book is finalized or $externalReferences == EXTERNAL_REF_IGNORE).
684 */
685 protected function processChapterExternalReferences(&$doc, $externalReferences = EPub::EXTERNAL_REF_ADD, $baseDir = "", $htmlDir = "") {
686 if ($this->isFinalized || $externalReferences === EPub::EXTERNAL_REF_IGNORE) {
687 return FALSE;
688 }
689
690 $backPath = preg_replace('#[^/]+/#i', "../", $htmlDir);
691 $isDocAString = is_string($doc);
692 $xmlDoc = NULL;
693
694 if ($isDocAString) {
695 $xmlDoc = new DOMDocument();
696 @$xmlDoc->loadHTML($doc);
697 } else {
698 $xmlDoc = $doc;
699 }
700
701 $this->processChapterStyles($xmlDoc, $externalReferences, $baseDir, $htmlDir);
702 $this->processChapterLinks($xmlDoc, $externalReferences, $baseDir, $htmlDir, $backPath);
703 $this->processChapterImages($xmlDoc, $externalReferences, $baseDir, $htmlDir, $backPath);
704 $this->processChapterSources($xmlDoc, $externalReferences, $baseDir, $htmlDir, $backPath);
705
706 if ($isDocAString) {
707 //$html = $xmlDoc->saveXML();
708
709 $htmlNode = $xmlDoc->getElementsByTagName("html");
710 $headNode = $xmlDoc->getElementsByTagName("head");
711 $bodyNode = $xmlDoc->getElementsByTagName("body");
712
713 $htmlNS = "";
714 for ($index = 0; $index < $htmlNode->item(0)->attributes->length; $index++) {
715 $nodeName = $htmlNode->item(0)->attributes->item($index)->nodeName;
716 $nodeValue = $htmlNode->item(0)->attributes->item($index)->nodeValue;
717
718 if ($nodeName != "xmlns") {
719 $htmlNS .= " $nodeName=\"$nodeValue\"";
720 }
721 }
722
723 $xml = new DOMDocument('1.0', "utf-8");
724 $xml->lookupPrefix("http://www.w3.org/1999/xhtml");
725 $xml->preserveWhiteSpace = FALSE;
726 $xml->formatOutput = TRUE;
727
728 $xml2Doc = new DOMDocument('1.0', "utf-8");
729 $xml2Doc->lookupPrefix("http://www.w3.org/1999/xhtml");
730 $xml2Doc->loadXML("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1//EN\"\n \"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd\">\n<html xmlns=\"http://www.w3.org/1999/xhtml\"$htmlNS>\n</html>\n");
731 $html = $xml2Doc->getElementsByTagName("html")->item(0);
732 $html->appendChild($xml2Doc->importNode($headNode->item(0), TRUE));
733 $html->appendChild($xml2Doc->importNode($bodyNode->item(0), TRUE));
734
735 // force pretty printing and correct formatting, should not be needed, but it is.
736 $xml->loadXML($xml2Doc->saveXML());
737 $doc = $xml->saveXML();
738
739 if (!$this->isEPubVersion2()) {
740 $doc = preg_replace('#^\s*<!DOCTYPE\ .+?>\s*#im', '', $doc);
741 }
742 }
743 return TRUE;
744 }
745
746 /**
747 * Process images referenced from an CSS file to the book.
748 *
749 * $externalReferences determins how the function will handle external references.
750 *
751 * @param string &$cssFile (referenced)
752 * @param int $externalReferences How to handle external references, EPub::EXTERNAL_REF_IGNORE, EPub::EXTERNAL_REF_ADD or EPub::EXTERNAL_REF_REMOVE_IMAGES? Default is EPub::EXTERNAL_REF_ADD.
753 * @param string $baseDir Default is "", meaning it is pointing to the document root.
754 * @param string $cssDir The of the CSS file's directory from the root of the archive.
755 *
756 * @return bool FALSE if unsuccessful (book is finalized or $externalReferences == EXTERNAL_REF_IGNORE).
757 */
758 protected function processCSSExternalReferences(&$cssFile, $externalReferences = EPub::EXTERNAL_REF_ADD, $baseDir = "", $cssDir = "") {
759 if ($this->isFinalized || $externalReferences === EPub::EXTERNAL_REF_IGNORE) {
760 return FALSE;
761 }
762
763 $backPath = preg_replace('#[^/]+/#i', "../", $cssDir);
764 $imgs = null;
765 preg_match_all('#url\s*\([\'\"\s]*(.+?)[\'\"\s]*\)#im', $cssFile, $imgs, PREG_SET_ORDER);
766
767 $itemCount = count($imgs);
768 for ($idx = 0; $idx < $itemCount; $idx++) {
769 $img = $imgs[$idx];
770 if ($externalReferences === EPub::EXTERNAL_REF_REMOVE_IMAGES || $externalReferences === EPub::EXTERNAL_REF_REPLACE_IMAGES) {
771 $cssFile = str_replace($img[0], "", $cssFile);
772 } else {
773 $source = $img[1];
774
775 $pathData = pathinfo($source);
776 $internalSrc = $pathData['basename'];
777 $internalPath = "";
778 $isSourceExternal = FALSE;
779
780 if ($this->resolveImage($source, $internalPath, $internalSrc, $isSourceExternal, $baseDir, $cssDir, $backPath)) {
781 $cssFile = str_replace($img[0], "url('" . $backPath . $internalPath . "')", $cssFile);
782 } else if ($isSourceExternal) {
783 $cssFile = str_replace($img[0], "", $cssFile); // External image is missing
784 } // else do nothing, if the image is local, and missing, assume it's been generated.
785 }
786 }
787 return TRUE;
788 }
789
790 /**
791 * Process style tags in a DOMDocument. Styles will be passed as CSS files and reinserted into the document.
792 *
793 * @param DOMDocument &$xmlDoc (referenced)
794 * @param int $externalReferences How to handle external references, EPub::EXTERNAL_REF_IGNORE, EPub::EXTERNAL_REF_ADD or EPub::EXTERNAL_REF_REMOVE_IMAGES? Default is EPub::EXTERNAL_REF_ADD.
795 * @param string $baseDir Default is "", meaning it is pointing to the document root.
796 * @param string $htmlDir The path to the parent HTML file's directory from the root of the archive.
797 *
798 * @return bool FALSE if uncuccessful (book is finalized or $externalReferences == EXTERNAL_REF_IGNORE).
799 */
800 protected function processChapterStyles(&$xmlDoc, $externalReferences = EPub::EXTERNAL_REF_ADD, $baseDir = "", $htmlDir = "") {
801 if ($this->isFinalized || $externalReferences === EPub::EXTERNAL_REF_IGNORE) {
802 return FALSE;
803 }
804 // process inlined CSS styles in style tags.
805 $styles = $xmlDoc->getElementsByTagName("style");
806 $styleCount = $styles->length;
807 for ($styleIdx = 0; $styleIdx < $styleCount; $styleIdx++) {
808 $style = $styles->item($styleIdx);
809
810 $styleData = preg_replace('#[/\*\s]*\<\!\[CDATA\[[\s\*/]*#im', "", $style->nodeValue);
811 $styleData = preg_replace('#[/\*\s]*\]\]\>[\s\*/]*#im', "", $styleData);
812
813 $this->processCSSExternalReferences($styleData, $externalReferences, $baseDir, $htmlDir);
814 $style->nodeValue = "\n" . trim($styleData) . "\n";
815 }
816 return TRUE;
817 }
818
819 /**
820 * Process link tags in a DOMDocument. Linked files will be loaded into the archive, and the link src will be rewritten to point to that location.
821 * Link types text/css will be passed as CSS files.
822 *
823 * @param DOMDocument &$xmlDoc (referenced)
824 * @param int $externalReferences How to handle external references, EPub::EXTERNAL_REF_IGNORE, EPub::EXTERNAL_REF_ADD or EPub::EXTERNAL_REF_REMOVE_IMAGES? Default is EPub::EXTERNAL_REF_ADD.
825 * @param string $baseDir Default is "", meaning it is pointing to the document root.
826 * @param string $htmlDir The path to the parent HTML file's directory from the root of the archive.
827 * @param string $backPath The path to get back to the root of the archive from $htmlDir.
828 *
829 * @return bool FALSE if uncuccessful (book is finalized or $externalReferences == EXTERNAL_REF_IGNORE).
830 */
831 protected function processChapterLinks(&$xmlDoc, $externalReferences = EPub::EXTERNAL_REF_ADD, $baseDir = "", $htmlDir = "", $backPath = "") {
832 if ($this->isFinalized || $externalReferences === EPub::EXTERNAL_REF_IGNORE) {
833 return FALSE;
834 }
835 // process link tags.
836 $links = $xmlDoc->getElementsByTagName("link");
837 $linkCount = $links->length;
838 for ($linkIdx = 0; $linkIdx < $linkCount; $linkIdx++) {
839 $link = $links->item($linkIdx);
840 $source = $link->attributes->getNamedItem("href")->nodeValue;
841 $sourceData = NULL;
842
843 $pathData = pathinfo($source);
844 $internalSrc = $pathData['basename'];
845
846 if (preg_match('#^(http|ftp)s?://#i', $source) == 1) {
847 $urlinfo = parse_url($source);
848
849 if (strpos($urlinfo['path'], $baseDir."/") !== FALSE) {
850 $internalSrc = substr($urlinfo['path'], strpos($urlinfo['path'], $baseDir."/") + strlen($baseDir) + 1);
851 }
852
853 @$sourceData = getFileContents($source);
854 } else if (strpos($source, "/") === 0) {
855 @$sourceData = file_get_contents($this->docRoot . $source);
856 } else {
857 @$sourceData = file_get_contents($this->docRoot . $baseDir . "/" . $source);
858 }
859
860 if (!empty($sourceData)) {
861 if (!array_key_exists($internalSrc, $this->fileList)) {
862 $mime = $link->attributes->getNamedItem("type")->nodeValue;
863 if (empty($mime)) {
864 $mime = "text/plain";
865 }
866 if ($mime == "text/css") {
867 $this->processCSSExternalReferences($sourceData, $externalReferences, $baseDir, $htmlDir);
868 $this->addCSSFile($internalSrc, $internalSrc, $sourceData, EPub::EXTERNAL_REF_IGNORE, $baseDir);
869 $link->setAttribute("href", $backPath . $internalSrc);
870 } else {
871 $this->addFile($internalSrc, $internalSrc, $sourceData, $mime);
872 }
873 $this->fileList[$internalSrc] = $source;
874 } else {
875 $link->setAttribute("href", $backPath . $internalSrc);
876 }
877 } // else do nothing, if the link is local, and missing, assume it's been generated.
878 }
879 return TRUE;
880 }
881
882 /**
883 * Process img tags in a DOMDocument.
884 * $externalReferences will determine what will happen to these images, and the img src will be rewritten accordingly.
885 *
886 * @param DOMDocument &$xmlDoc (referenced)
887 * @param int $externalReferences How to handle external references, EPub::EXTERNAL_REF_IGNORE, EPub::EXTERNAL_REF_ADD or EPub::EXTERNAL_REF_REMOVE_IMAGES? Default is EPub::EXTERNAL_REF_ADD.
888 * @param string $baseDir Default is "", meaning it is pointing to the document root.
889 * @param string $htmlDir The path to the parent HTML file's directory from the root of the archive.
890 * @param string $backPath The path to get back to the root of the archive from $htmlDir.
891 *
892 * @return bool FALSE if uncuccessful (book is finalized or $externalReferences == EXTERNAL_REF_IGNORE).
893 */
894 protected function processChapterImages(&$xmlDoc, $externalReferences = EPub::EXTERNAL_REF_ADD, $baseDir = "", $htmlDir = "", $backPath = "") {
895 if ($this->isFinalized || $externalReferences === EPub::EXTERNAL_REF_IGNORE) {
896 return FALSE;
897 }
898 // process img tags.
899 $postProcDomElememts = array();
900 $images = $xmlDoc->getElementsByTagName("img");
901 $itemCount = $images->length;
902
903 for ($idx = 0; $idx < $itemCount; $idx++) {
904 $img = $images->item($idx);
905
906 if ($externalReferences === EPub::EXTERNAL_REF_REMOVE_IMAGES) {
907 $postProcDomElememts[] = $img;
908 } else if ($externalReferences === EPub::EXTERNAL_REF_REPLACE_IMAGES) {
909 $altNode = $img->attributes->getNamedItem("alt");
910 $alt = "image";
911 if ($altNode !== NULL && strlen($altNode->nodeValue) > 0) {
912 $alt = $altNode->nodeValue;
913 }
914 $postProcDomElememts[] = array($img, $this->createDomFragment($xmlDoc, "<em>[" . $alt . "]</em>"));
915 } else {
916 $source = $img->attributes->getNamedItem("src")->nodeValue;
917
918 $parsedSource = parse_url($source);
919 $internalSrc = $this->sanitizeFileName(urldecode(pathinfo($parsedSource['path'], PATHINFO_BASENAME)));
920 $internalPath = "";
921 $isSourceExternal = FALSE;
922
923 if ($this->resolveImage($source, $internalPath, $internalSrc, $isSourceExternal, $baseDir, $htmlDir, $backPath)) {
924 $img->setAttribute("src", $backPath . $internalPath);
925 } else if ($isSourceExternal) {
926 $postProcDomElememts[] = $img; // External image is missing
927 } // else do nothing, if the image is local, and missing, assume it's been generated.
928 }
929 }
930
931 foreach ($postProcDomElememts as $target) {
932 if (is_array($target)) {
933 $target[0]->parentNode->replaceChild($target[1], $target[0]);
934 } else {
935 $target->parentNode->removeChild($target);
936 }
937 }
938 return TRUE;
939 }
940
941 /**
942 * Process source tags in a DOMDocument.
943 * $externalReferences will determine what will happen to these images, and the img src will be rewritten accordingly.
944 *
945 * @param DOMDocument &$xmlDoc (referenced)
946 * @param int $externalReferences How to handle external references, EPub::EXTERNAL_REF_IGNORE, EPub::EXTERNAL_REF_ADD or EPub::EXTERNAL_REF_REMOVE_IMAGES? Default is EPub::EXTERNAL_REF_ADD.
947 * @param string $baseDir Default is "", meaning it is pointing to the document root.
948 * @param string $htmlDir The path to the parent HTML file's directory from the root of the archive.
949 * @param string $backPath The path to get back to the root of the archive from $htmlDir.
950 *
951 * @return bool FALSE if uncuccessful (book is finalized or $externalReferences == EXTERNAL_REF_IGNORE).
952 */
953 protected function processChapterSources(&$xmlDoc, $externalReferences = EPub::EXTERNAL_REF_ADD, $baseDir = "", $htmlDir = "", $backPath = "") {
954 if ($this->isFinalized || $externalReferences === EPub::EXTERNAL_REF_IGNORE) {
955 return FALSE;
956 }
957
958 if ($this->bookVersion !== EPub::BOOK_VERSION_EPUB3) {
959 // ePub 2 does not support multimedia formats, and they must be removed.
960 $externalReferences = EPub::EXTERNAL_REF_REMOVE_IMAGES;
961 }
962
963 $postProcDomElememts = array();
964 $images = $xmlDoc->getElementsByTagName("source");
965 $itemCount = $images->length;
966 for ($idx = 0; $idx < $itemCount; $idx++) {
967 $img = $images->item($idx);
968 if ($externalReferences === EPub::EXTERNAL_REF_REMOVE_IMAGES) {
969 $postProcDomElememts[] = $img;
970 } else if ($externalReferences === EPub::EXTERNAL_REF_REPLACE_IMAGES) {
971 $altNode = $img->attributes->getNamedItem("alt");
972 $alt = "image";
973 if ($altNode !== NULL && strlen($altNode->nodeValue) > 0) {
974 $alt = $altNode->nodeValue;
975 }
976 $postProcDomElememts[] = array($img, $this->createDomFragment($xmlDoc, "[" . $alt . "]"));
977 } else {
978 $source = $img->attributes->getNamedItem("src")->nodeValue;
979
980 $parsedSource = parse_url($source);
981 $internalSrc = $this->sanitizeFileName(urldecode(pathinfo($parsedSource['path'], PATHINFO_BASENAME)));
982 $internalPath = "";
983 $isSourceExternal = FALSE;
984
985 if ($this->resolveMedia($source, $internalPath, $internalSrc, $isSourceExternal, $baseDir, $htmlDir, $backPath)) {
986 $img->setAttribute("src", $backPath . $internalPath);
987 } else if ($isSourceExternal) {
988 $postProcDomElememts[] = $img; // External image is missing
989 } // else do nothing, if the image is local, and missing, assume it's been generated.
990 }
991 }
992 }
993
994 /**
995 * Resolve an image src and determine it's target location and add it to the book.
996 *
997 * @param string $source Image Source link.
998 * @param string &$internalPath (referenced) Return value, will be set to the target path and name in the book.
999 * @param string &$internalSrc (referenced) Return value, will be set to the target name in the book.
1000 * @param string &$isSourceExternal (referenced) Return value, will be set to TRUE if the image originated from a full URL.
1001 * @param string $baseDir Default is "", meaning it is pointing to the document root.
1002 * @param string $htmlDir The path to the parent HTML file's directory from the root of the archive.
1003 * @param string $backPath The path to get back to the root of the archive from $htmlDir.
1004 */
1005 protected function resolveImage($source, &$internalPath, &$internalSrc, &$isSourceExternal, $baseDir = "", $htmlDir = "", $backPath = "") {
1006 if ($this->isFinalized) {
1007 return FALSE;
1008 }
1009 $imageData = NULL;
1010
1011 if (preg_match('#^(http|ftp)s?://#i', $source) == 1) {
1012 $urlinfo = parse_url($source);
1013 $urlPath = pathinfo($urlinfo['path']);
1014
1015 if (strpos($urlinfo['path'], $baseDir."/") !== FALSE) {
1016 $internalSrc = $this->sanitizeFileName(urldecode(substr($urlinfo['path'], strpos($urlinfo['path'], $baseDir."/") + strlen($baseDir) + 1)));
1017 }
1018 $internalPath = $urlinfo["scheme"] . "/" . $urlinfo["host"] . "/" . pathinfo($urlinfo["path"], PATHINFO_DIRNAME);
1019 $isSourceExternal = TRUE;
1020 $imageData = $this->getImage($source);
1021 } else if (strpos($source, "/") === 0) {
1022 $internalPath = pathinfo($source, PATHINFO_DIRNAME);
1023
1024 $path = $source;
1025 if (!file_exists($path)) {
1026 $path = $this->docRoot . $path;
1027 }
1028
1029 $imageData = $this->getImage($path);
1030 } else {
1031 $internalPath = $htmlDir . "/" . preg_replace('#^[/\.]+#', '', pathinfo($source, PATHINFO_DIRNAME));
1032
1033 $path = $baseDir . "/" . $source;
1034 if (!file_exists($path)) {
1035 $path = $this->docRoot . $path;
1036 }
1037
1038 $imageData = $this->getImage($path);
1039 }
1040 if ($imageData !== FALSE) {
1041 $iSrcInfo = pathinfo($internalSrc);
1042 if (!empty($imageData['ext']) && $imageData['ext'] != $iSrcInfo['extension']) {
1043 $internalSrc = $iSrcInfo['filename'] . "." . $imageData['ext'];
1044 }
1045 $internalPath = Zip::getRelativePath("images/" . $internalPath . "/" . $internalSrc);
1046 if (!array_key_exists($internalPath, $this->fileList)) {
1047 $this->addFile($internalPath, "i_" . $internalSrc, $imageData['image'], $imageData['mime']);
1048 $this->fileList[$internalPath] = $source;
1049 }
1050 return TRUE;
1051 }
1052 return FALSE;
1053 }
1054
1055 /**
1056 * Resolve a media src and determine it's target location and add it to the book.
1057 *
1058 * @param string $source Source link.
1059 * @param string $internalPath (referenced) Return value, will be set to the target path and name in the book.
1060 * @param string $internalSrc (referenced) Return value, will be set to the target name in the book.
1061 * @param string $isSourceExternal (referenced) Return value, will be set to TRUE if the image originated from a full URL.
1062 * @param string $baseDir Default is "", meaning it is pointing to the document root.
1063 * @param string $htmlDir The path to the parent HTML file's directory from the root of the archive.
1064 * @param string $backPath The path to get back to the root of the archive from $htmlDir.
1065 */
1066 protected function resolveMedia($source, &$internalPath, &$internalSrc, &$isSourceExternal, $baseDir = "", $htmlDir = "", $backPath = "") {
1067 if ($this->isFinalized) {
1068 return FALSE;
1069 }
1070 $mediaPath = NULL;
1071 $tmpFile;
1072
1073 if (preg_match('#^(http|ftp)s?://#i', $source) == 1) {
1074 $urlinfo = parse_url($source);
1075
1076 if (strpos($urlinfo['path'], $baseDir."/") !== FALSE) {
1077 $internalSrc = substr($urlinfo['path'], strpos($urlinfo['path'], $baseDir."/") + strlen($baseDir) + 1);
1078 }
1079 $internalPath = $urlinfo["scheme"] . "/" . $urlinfo["host"] . "/" . pathinfo($urlinfo["path"], PATHINFO_DIRNAME);
1080 $isSourceExternal = TRUE;
1081 $mediaPath = $this->getFileContents($source, true);
1082 $tmpFile = $mediaPath;
1083 } else if (strpos($source, "/") === 0) {
1084 $internalPath = pathinfo($source, PATHINFO_DIRNAME);
1085
1086 $mediaPath = $source;
1087 if (!file_exists($mediaPath)) {
1088 $mediaPath = $this->docRoot . $mediaPath;
1089 }
1090 } else {
1091 $internalPath = $htmlDir . "/" . preg_replace('#^[/\.]+#', '', pathinfo($source, PATHINFO_DIRNAME));
1092
1093 $mediaPath = $baseDir . "/" . $source;
1094 if (!file_exists($mediaPath)) {
1095 $mediaPath = $this->docRoot . $mediaPath;
1096 }
1097 }
1098
1099 if ($mediaPath !== FALSE) {
1100 $mime = $this->getMime($source);
1101 $internalPath = Zip::getRelativePath("media/" . $internalPath . "/" . $internalSrc);
1102
1103 if (!array_key_exists($internalPath, $this->fileList) &&
1104 $this->addLargeFile($internalPath, "m_" . $internalSrc, $mediaPath, $mime)) {
1105 $this->fileList[$internalPath] = $source;
1106 }
1107 if (isset($tmpFile)) {
1108 unlink($tmpFile);
1109 }
1110 return TRUE;
1111 }
1112 return FALSE;
1113 }
1114
1115 /**
1116 * Get Book Chapter count.
1117 *
1118 * @access public
1119 * @return number of chapters
1120 */
1121 function getChapterCount() {
1122 return $this->chapterCount;
1123 }
1124
1125 /**
1126 * Book title, mandatory.
1127 *
1128 * Used for the dc:title metadata parameter in the OPF file as well as the DocTitle attribute in the NCX file.
1129 *
1130 * @param string $title
1131 * @access public
1132 * @return bool $success
1133 */
1134 function setTitle($title) {
1135 if ($this->isFinalized) {
1136 return FALSE;
1137 }
1138 $this->title = $title;
1139 return TRUE;
1140 }
1141
1142 /**
1143 * Get Book title.
1144 *
1145 * @access public
1146 * @return $title
1147 */
1148 function getTitle() {
1149 return $this->title;
1150 }
1151
1152 /**
1153 * Book language, mandatory
1154 *
1155 * Use the RFC3066 Language codes, such as "en", "da", "fr" etc.
1156 * Defaults to "en".
1157 *
1158 * Used for the dc:language metadata parameter in the OPF file.
1159 *
1160 * @param string $language
1161 * @access public
1162 * @return bool $success
1163 */
1164 function setLanguage($language) {
1165 if ($this->isFinalized || mb_strlen($language) != 2) {
1166 return FALSE;
1167 }
1168 $this->language = $language;
1169 return TRUE;
1170 }
1171
1172 /**
1173 * Get Book language.
1174 *
1175 * @access public
1176 * @return $language
1177 */
1178 function getLanguage() {
1179 return $this->language;
1180 }
1181
1182 /**
1183 * Unique book identifier, mandatory.
1184 * Use the URI, or ISBN if available.
1185 *
1186 * An unambiguous reference to the resource within a given context.
1187 *
1188 * Recommended best practice is to identify the resource by means of a
1189 * string conforming to a formal identification system.
1190 *
1191 * Used for the dc:identifier metadata parameter in the OPF file, as well
1192 * as dtb:uid in the NCX file.
1193 *
1194 * Identifier type should only be:
1195 * EPub::IDENTIFIER_URI
1196 * EPub::IDENTIFIER_ISBN
1197 * EPub::IDENTIFIER_UUID
1198 *
1199 * @param string $identifier
1200 * @param string $identifierType
1201 * @access public
1202 * @return bool $success
1203 */
1204 function setIdentifier($identifier, $identifierType) {
1205 if ($this->isFinalized || ($identifierType !== EPub::IDENTIFIER_URI && $identifierType !== EPub::IDENTIFIER_ISBN && $identifierType !== EPub::IDENTIFIER_UUID)) {
1206 return FALSE;
1207 }
1208 $this->identifier = $identifier;
1209 $this->identifierType = $identifierType;
1210 return TRUE;
1211 }
1212
1213 /**
1214 * Get Book identifier.
1215 *
1216 * @access public
1217 * @return $identifier
1218 */
1219 function getIdentifier() {
1220 return $this->identifier;
1221 }
1222
1223 /**
1224 * Get Book identifierType.
1225 *
1226 * @access public
1227 * @return $identifierType
1228 */
1229 function getIdentifierType() {
1230 return $this->identifierType;
1231 }
1232
1233 /**
1234 * Book description, optional.
1235 *
1236 * An account of the resource.
1237 *
1238 * Description may include but is not limited to: an abstract, a table of
1239 * contents, a graphical representation, or a free-text account of the
1240 * resource.
1241 *
1242 * Used for the dc:source metadata parameter in the OPF file
1243 *
1244 * @param string $description
1245 * @access public
1246 * @return bool $success
1247 */
1248 function setDescription($description) {
1249 if ($this->isFinalized) {
1250 return FALSE;
1251 }
1252 $this->description = $description;
1253 return TRUE;
1254 }
1255
1256 /**
1257 * Get Book description.
1258 *
1259 * @access public
1260 * @return $description
1261 */
1262 function getDescription() {
1263 return $this->description;
1264 }
1265
1266 /**
1267 * Book author or creator, optional.
1268 * The $authorSortKey is basically how the name is to be sorted, usually
1269 * it's "Lastname, First names" where the $author is the straight
1270 * "Firstnames Lastname"
1271 *
1272 * An entity primarily responsible for making the resource.
1273 *
1274 * Examples of a Creator include a person, an organization, or a service.
1275 * Typically, the name of a Creator should be used to indicate the entity.
1276 *
1277 * Used for the dc:creator metadata parameter in the OPF file and the
1278 * docAuthor attribure in the NCX file.
1279 * The sort key is used for the opf:file-as attribute in dc:creator.
1280 *
1281 * @param string $author
1282 * @param string $authorSortKey
1283 * @access public
1284 * @return bool $success
1285 */
1286 function setAuthor($author, $authorSortKey) {
1287 if ($this->isFinalized) {
1288 return FALSE;
1289 }
1290 $this->author = $author;
1291 $this->authorSortKey = $authorSortKey;
1292 return TRUE;
1293 }
1294
1295 /**
1296 * Get Book author.
1297 *
1298 * @access public
1299 * @return $author
1300 */
1301 function getAuthor() {
1302 return $this->author;
1303 }
1304
1305 /**
1306 * Publisher Information, optional.
1307 *
1308 * An entity responsible for making the resource available.
1309 *
1310 * Examples of a Publisher include a person, an organization, or a service.
1311 * Typically, the name of a Publisher should be used to indicate the entity.
1312 *
1313 * Used for the dc:publisher and dc:relation metadata parameters in the OPF file.
1314 *
1315 * @param string $publisherName
1316 * @param string $publisherURL
1317 * @access public
1318 * @return bool $success
1319 */
1320 function setPublisher($publisherName, $publisherURL) {
1321 if ($this->isFinalized) {
1322 return FALSE;
1323 }
1324 $this->publisherName = $publisherName;
1325 $this->publisherURL = $publisherURL;
1326 return TRUE;
1327 }
1328
1329 /**
1330 * Get Book publisherName.
1331 *
1332 * @access public
1333 * @return $publisherName
1334 */
1335 function getPublisherName() {
1336 return $this->publisherName;
1337 }
1338
1339 /**
1340 * Get Book publisherURL.
1341 *
1342 * @access public
1343 * @return $publisherURL
1344 */
1345 function getPublisherURL() {
1346 return $this->publisherURL;
1347 }
1348
1349 /**
1350 * Release date, optional. If left blank, the time of the finalization will
1351 * be used.
1352 *
1353 * A point or period of time associated with an event in the lifecycle of
1354 * the resource.
1355 *
1356 * Date may be used to express temporal information at any level of
1357 * granularity. Recommended best practice is to use an encoding scheme,
1358 * such as the W3CDTF profile of ISO 8601 [W3CDTF].
1359 *
1360 * Used for the dc:date metadata parameter in the OPF file
1361 *
1362 * @param long $timestamp
1363 * @access public
1364 * @return bool $success
1365 */
1366 function setDate($timestamp) {
1367 if ($this->isFinalized) {
1368 return FALSE;
1369 }
1370 $this->date = $timestamp;
1371 $this->opf->date = $timestamp;
1372 return TRUE;
1373 }
1374
1375 /**
1376 * Get Book date.
1377 *
1378 * @access public
1379 * @return $date
1380 */
1381 function getDate() {
1382 return $this->date;
1383 }
1384
1385 /**
1386 * Book (copy)rights, optional.
1387 *
1388 * Information about rights held in and over the resource.
1389 *
1390 * Typically, rights information includes a statement about various
1391 * property rights associated with the resource, including intellectual
1392 * property rights.
1393 *
1394 * Used for the dc:rights metadata parameter in the OPF file
1395 *
1396 * @param string $rightsText
1397 * @access public
1398 * @return bool $success
1399 */
1400 function setRights($rightsText) {
1401 if ($this->isFinalized) {
1402 return FALSE;
1403 }
1404 $this->rights = $rightsText;
1405 return TRUE;
1406 }
1407
1408 /**
1409 * Get Book rights.
1410 *
1411 * @access public
1412 * @return $rights
1413 */
1414 function getRights() {
1415 return $this->rights;
1416 }
1417
1418 /**
1419 * Add book Subject.
1420 *
1421 * The topic of the resource.
1422 *
1423 * Typically, the subject will be represented using keywords, key phrases,
1424 * or classification codes. Recommended best practice is to use a
1425 * controlled vocabulary. To describe the spatial or temporal topic of the
1426 * resource, use the Coverage element.
1427 *
1428 * @param string $subject
1429 */
1430 function setSubject($subject) {
1431 if ($this->isFinalized) {
1432 return;
1433 }
1434 $this->opf->addDCMeta(DublinCore::SUBJECT, $this->decodeHtmlEntities($subject));
1435 }
1436
1437 /**
1438 * Book source URL, optional.
1439 *
1440 * A related resource from which the described resource is derived.
1441 *
1442 * The described resource may be derived from the related resource in whole
1443 * or in part. Recommended best practice is to identify the related
1444 * resource by means of a string conforming to a formal identification system.
1445 *
1446 * Used for the dc:source metadata parameter in the OPF file
1447 *
1448 * @param string $sourceURL
1449 * @access public
1450 * @return bool $success
1451 */
1452 function setSourceURL($sourceURL) {
1453 if ($this->isFinalized) {
1454 return FALSE;
1455 }
1456 $this->sourceURL = $sourceURL;
1457 return TRUE;
1458 }
1459
1460 /**
1461 * Get Book sourceURL.
1462 *
1463 * @access public
1464 * @return $sourceURL
1465 */
1466 function getSourceURL() {
1467 return $this->sourceURL;
1468 }
1469
1470 /**
1471 * Coverage, optional.
1472 *
1473 * The spatial or temporal topic of the resource, the spatial applicability
1474 * of the resource, or the jurisdiction under which the resource is relevant.
1475 *
1476 * Spatial topic and spatial applicability may be a named place or a location
1477 * specified by its geographic coordinates. Temporal topic may be a named
1478 * period, date, or date range. A jurisdiction may be a named administrative
1479 * entity or a geographic place to which the resource applies. Recommended
1480 * best practice is to use a controlled vocabulary such as the Thesaurus of
1481 * Geographic Names [TGN]. Where appropriate, named places or time periods
1482 * can be used in preference to numeric identifiers such as sets of
1483 * coordinates or date ranges.
1484 *
1485 * Used for the dc:coverage metadata parameter in the OPF file
1486 *
1487 * Same as ->addDublinCoreMetadata(DublinCore::COVERAGE, $coverage);
1488 *
1489 * @param string $coverage
1490 * @access public
1491 * @return bool $success
1492 */
1493 function setCoverage($coverage) {
1494 if ($this->isFinalized) {
1495 return FALSE;
1496 }
1497 $this->coverage = $coverage;
1498 return TRUE;
1499 }
1500
1501 /**
1502 * Get Book coverage.
1503 *
1504 * @access public
1505 * @return $coverage
1506 */
1507 function getCoverage() {
1508 return $this->coverage;
1509 }
1510
1511 /**
1512 * Set book Relation.
1513 *
1514 * A related resource.
1515 *
1516 * Recommended best practice is to identify the related resource by means
1517 * of a string conforming to a formal identification system.
1518 *
1519 * @param string $relation
1520 */
1521 function setRelation($relation) {
1522 if ($this->isFinalized) {
1523 return;
1524 }
1525 $this->relation = $relation;
1526 }
1527
1528 /**
1529 * Get the book relation.
1530 *
1531 * @return string The relation.
1532 */
1533 function getRelation() {
1534 return $this->relation;
1535 }
1536
1537 /**
1538 * Set book Generator.
1539 *
1540 * The generator is a meta tag added to the ncx file, it is not visible
1541 * from within the book, but is a kind of electronic watermark.
1542 *
1543 * @param string $generator
1544 */
1545 function setGenerator($generator) {
1546 if ($this->isFinalized) {
1547 return;
1548 }
1549 $this->generator = $generator;
1550 }
1551
1552 /**
1553 * Get the book relation.
1554 *
1555 * @return string The generator identity string.
1556 */
1557 function getGenerator() {
1558 return $this->generator;
1559 }
1560
1561 /**
1562 * Set ePub date formate to the short yyyy-mm-dd form, for compliance with
1563 * a bug in EpubCheck, prior to its version 1.1.
1564 *
1565 * The latest version of ePubCheck can be obtained here:
1566 * http://code.google.com/p/epubcheck/
1567 *
1568 * @access public
1569 * @return bool $success
1570 */
1571 function setShortDateFormat() {
1572 if ($this->isFinalized) {
1573 return FALSE;
1574 }
1575 $this->dateformat = $this->dateformatShort;
1576 return TRUE;
1577 }
1578
1579 /**
1580 * @Deprecated
1581 */
1582 function setIgnoreEmptyBuffer($ignoreEmptyBuffer = TRUE) {
1583 die ("Function was deprecated, functionality is no longer needed.");
1584 }
1585
1586 /**
1587 * Set the references title for the ePub 3 landmarks section
1588 *
1589 * @param string $referencesTitle
1590 * @param string $referencesId
1591 * @param string $referencesClass
1592 * @return bool
1593 */
1594 function setReferencesTitle($referencesTitle = "Guide", $referencesId = "", $referencesClass = "references") {
1595 if ($this->isFinalized) {
1596 return FALSE;
1597 }
1598 $this->ncx->referencesTitle = is_string($referencesTitle) ? trim($referencesTitle) : "Guide";
1599 $this->ncx->referencesId = is_string($referencesId) ? trim($referencesId) : "references";
1600 $this->ncx->referencesClass = is_string($referencesClass) ? trim($referencesClass) : "references";
1601 return TRUE;
1602 }
1603
1604 /**
1605 * Set the references title for the ePub 3 landmarks section
1606 *
1607 * @param bool $referencesTitle
1608 */
1609 function setisReferencesAddedToToc($isReferencesAddedToToc = TRUE) {
1610 if ($this->isFinalized) {
1611 return FALSE;
1612 }
1613 $this->isReferencesAddedToToc = $isReferencesAddedToToc === TRUE;
1614 return TRUE;
1615 }
1616
1617 /**
1618 * Get Book status.
1619 *
1620 * @access public
1621 * @return bool
1622 */
1623 function isFinalized() {
1624 return $this->isFinalized;
1625 }
1626
1627 /**
1628 * Build the Table of Contents. This is not strictly necessary, as most eReaders will build it from the navigation structure in the .ncx file.
1629 *
1630 * @param string $cssFileName Include a link to this css file in the TOC html.
1631 * @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".
1632 * @param string $title Title of the Table of contents. Default is "Table of Contents". Use this for ie. languages other than English.
1633 * @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.
1634 * @param bool $addToIndex Add the TOC to the NCX index at the current leve/position. Default is FALSE
1635 * @param string $tocFileName Change teh default name of the TOC file. The default is "TOC.xhtml"
1636 */
1637 function buildTOC($cssFileName = NULL, $tocCSSClass = "toc", $title = "Table of Contents", $addReferences = TRUE, $addToIndex = FALSE, $tocFileName = "TOC.xhtml") {
1638 if ($this->isFinalized) {
1639 return FALSE;
1640 }
1641 $this->buildTOC = TRUE;
1642 $this->tocTitle = $title;
1643 $this->tocFileName = $this->normalizeFileName($tocFileName);
1644 if (!empty($cssFileName)) {
1645 $this->tocCSSFileName = $this->normalizeFileName($cssFileName);
1646 }
1647 $this->tocCSSClass = $tocCSSClass;
1648 $this->tocAddReferences = $addReferences;
1649
1650 $this->opf->addItemRef("ref_" . Reference::TABLE_OF_CONTENTS, FALSE);
1651 $this->opf->addReference(Reference::TABLE_OF_CONTENTS, $title, $this->tocFileName);
1652
1653 if ($addToIndex) {
1654 $navPoint = new NavPoint($this->decodeHtmlEntities($title), $this->tocFileName, "ref_" . Reference::TABLE_OF_CONTENTS);
1655 $this->ncx->addNavPoint($navPoint);
1656 } else {
1657 $this->ncx->referencesList[Reference::TABLE_OF_CONTENTS] = $this->tocFileName;
1658 $this->ncx->referencesName[Reference::TABLE_OF_CONTENTS] = $title;
1659 }
1660 }
1661
1662 private function finalizeTOC() {
1663 if (!$this->buildTOC) {
1664 return FALSE;
1665 }
1666
1667 if (empty($this->tocTitle)) {
1668 $this->tocTitle = "Table of Contents";
1669 }
1670
1671 $tocData = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
1672
1673 if ($this->isEPubVersion2()) {
1674 $tocData .= "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1//EN\"\n"
1675 . " \"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd\">\n"
1676 . "<html xmlns=\"http://www.w3.org/1999/xhtml\">\n"
1677 . "<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />\n";
1678 } else {
1679 $tocData .= "<html xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:epub=\"http://www.idpf.org/2007/ops\">\n"
1680 . "<head>\n<meta http-equiv=\"Default-Style\" content=\"text/html; charset=utf-8\" />\n";
1681 }
1682
1683 if (!empty($this->tocCssFileName)) {
1684 $tocData .= "<link rel=\"stylesheet\" type=\"text/css\" href=\"" . $this->tocCssFileName . "\" />\n";
1685 }
1686
1687 $tocData .= "<title>" . $this->tocTitle . "</title>\n"
1688 . "</head>\n"
1689 . "<body>\n"
1690 . "<h3>" . $this->tocTitle . "</h3>\n<div";
1691
1692 if (!empty($this->tocCSSClass)) {
1693 $tocData .= " class=\"" . $this->tocCSSClass . "\"";
1694 }
1695 $tocData .= ">\n";
1696
1697 while (list($item, $descriptive) = each($this->referencesOrder)) {
1698 if ($item === "text") {
1699 while (list($chapterName, $navPoint) = each($this->ncx->chapterList)) {
1700 $fileName = $navPoint->getContentSrc();
1701 $level = $navPoint->getLevel() -2;
1702 $tocData .= "\t<p>" . str_repeat(" &#160; &#160; &#160;", $level) . "<a href=\"" . $fileName . "\">" . $chapterName . "</a></p>\n";
1703 }
1704 } else if ($this->tocAddReferences === TRUE) {
1705 if (array_key_exists($item, $this->ncx->referencesList)) {
1706 $tocData .= "\t<p><a href=\"" . $this->ncx->referencesList[$item] . "\">" . $descriptive . "</a></p>\n";
1707 } else if ($item === "toc") {
1708 $tocData .= "\t<p><a href=\"TOC.xhtml\">" . $this->tocTitle . "</a></p>\n";
1709 } else if ($item === "cover" && $this->isCoverImageSet) {
1710 $tocData .= "\t<p><a href=\"CoverPage.xhtml\">" . $descriptive . "</a></p>\n";
1711 }
1712 }
1713 }
1714 $tocData .= "</div>\n</body>\n</html>\n";
1715
1716 $this->addReferencePage($this->tocTitle, $this->tocFileName, $tocData, Reference::TABLE_OF_CONTENTS);
1717
1718 }
1719
1720 /**
1721 * @return bool
1722 */
1723 function isEPubVersion2() {
1724 return $this->bookVersion === EPub::BOOK_VERSION_EPUB2;
1725 }
1726
1727 /**
1728 * @param string $cssFileName
1729 * @param string $title
1730 * @return string
1731 */
1732 function buildEPub3TOC($cssFileName = NULL, $title = "Table of Contents") {
1733 $this->ncx->referencesOrder = $this->referencesOrder;
1734 $this->ncx->setDocTitle($this->decodeHtmlEntities($this->title));
1735 return $this->ncx->finalizeEPub3($title, $cssFileName);
1736 }
1737
1738 /**
1739 * @param string $fileName
1740 * @param string $tocData
1741 * @return bool
1742 */
1743 function addEPub3TOC($fileName, $tocData) {
1744 if ($this->isEPubVersion2() || $this->isFinalized || array_key_exists($fileName, $this->fileList)) {
1745 return FALSE;
1746 }
1747 $fileName = Zip::getRelativePath($fileName);
1748 $fileName = preg_replace('#^[/\.]+#i', "", $fileName);
1749
1750 $this->zip->addFile($tocData, $this->bookRoot.$fileName);
1751
1752 $this->fileList[$fileName] = $fileName;
1753 $this->opf->addItem("toc", $fileName, "application/xhtml+xml", "nav");
1754 return TRUE;
1755 }
1756
1757 /**
1758 * Check for mandatory parameters and finalize the e-book.
1759 * Once finalized, the book is locked for further additions.
1760 *
1761 * @return bool $success
1762 */
1763 function finalize() {
1764 if ($this->isFinalized || $this->chapterCount == 0 || empty($this->title) || empty($this->language)) {
1765 return FALSE;
1766 }
1767
1768 if (empty($this->identifier) || empty($this->identifierType)) {
1769 $this->setIdentifier($this->createUUID(4), EPub::IDENTIFIER_UUID);
1770 }
1771
1772 if ($this->date == 0) {
1773 $this->date = time();
1774 }
1775
1776 if (empty($this->sourceURL)) {
1777 $this->sourceURL = $this->getCurrentPageURL();
1778 }
1779
1780 if (empty($this->publisherURL)) {
1781 $this->sourceURL = $this->getCurrentServerURL();
1782 }
1783
1784 // Generate OPF data:
1785 $this->opf->setIdent("BookId");
1786 $this->opf->initialize($this->title, $this->language, $this->identifier, $this->identifierType);
1787
1788 $DCdate = new DublinCore(DublinCore::DATE, gmdate($this->dateformat, $this->date));
1789 $DCdate->addOpfAttr("event", "publication");
1790 $this->opf->metadata->addDublinCore($DCdate);
1791
1792 if (!empty($this->description)) {
1793 $this->opf->addDCMeta(DublinCore::DESCRIPTION, $this->decodeHtmlEntities($this->description));
1794 }
1795
1796 if (!empty($this->publisherName)) {
1797 $this->opf->addDCMeta(DublinCore::PUBLISHER, $this->decodeHtmlEntities($this->publisherName));
1798 }
1799
1800 if (!empty($this->publisherURL)) {
1801 $this->opf->addDCMeta(DublinCore::RELATION, $this->decodeHtmlEntities($this->publisherURL));
1802 }
1803
1804 if (!empty($this->author)) {
1805 $author = $this->decodeHtmlEntities($this->author);
1806 $this->opf->addCreator($author, $this->decodeHtmlEntities($this->authorSortKey), MarcCode::AUTHOR);
1807 $this->ncx->setDocAuthor($author);
1808 }
1809
1810 if (!empty($this->rights)) {
1811 $this->opf->addDCMeta(DublinCore::RIGHTS, $this->decodeHtmlEntities($this->rights));
1812 }
1813
1814 if (!empty($this->coverage)) {
1815 $this->opf->addDCMeta(DublinCore::COVERAGE, $this->decodeHtmlEntities($this->coverage));
1816 }
1817
1818 if (!empty($this->sourceURL)) {
1819 $this->opf->addDCMeta(DublinCore::SOURCE, $this->sourceURL);
1820 }
1821
1822 if (!empty($this->relation)) {
1823 $this->opf->addDCMeta(DublinCore::RELATION, $this->decodeHtmlEntities($this->relation));
1824 }
1825
1826 if ($this->isCoverImageSet) {
1827 $this->opf->addMeta("cover", "coverImage");
1828 }
1829
1830 if (!empty($this->generator)) {
1831 $gen = $this->decodeHtmlEntities($this->generator);
1832 $this->opf->addMeta("generator", $gen);
1833 $this->ncx->addMetaEntry("dtb:generator", $gen);
1834 }
1835
1836 if ($this->EPubMark) {
1837 $this->opf->addMeta("generator", "EPub (Version " . self::VERSION . ") by A. Grandt, http://www.phpclasses.org/package/6115");
1838 }
1839
1840 reset($this->ncx->chapterList);
1841 list($firstChapterName, $firstChapterNavPoint) = each($this->ncx->chapterList);
1842 $firstChapterFileName = $firstChapterNavPoint->getContentSrc();
1843 $this->opf->addReference(Reference::TEXT, $this->decodeHtmlEntities($firstChapterName), $firstChapterFileName);
1844
1845 $this->ncx->setUid($this->identifier);
1846
1847 $this->ncx->setDocTitle($this->decodeHtmlEntities($this->title));
1848
1849 $this->ncx->referencesOrder = $this->referencesOrder;
1850 if ($this->isReferencesAddedToToc) {
1851 $this->ncx->finalizeReferences();
1852 }
1853
1854 $this->finalizeTOC();
1855
1856 if (!$this->isEPubVersion2()) {
1857 $this->addEPub3TOC("epub3toc.xhtml", $this->buildEPub3TOC());
1858 }
1859
1860 $opfFinal = $this->fixEncoding($this->opf->finalize());
1861 $ncxFinal = $this->fixEncoding($this->ncx->finalize());
1862
1863 if (mb_detect_encoding($opfFinal, 'UTF-8', true) === "UTF-8") {
1864 $this->zip->addFile($opfFinal, $this->bookRoot."book.opf");
1865 } else {
1866 $this->zip->addFile(mb_convert_encoding($opfFinal, "UTF-8"), $this->bookRoot."book.opf");
1867 }
1868
1869 if (mb_detect_encoding($ncxFinal, 'UTF-8', true) === "UTF-8") {
1870 $this->zip->addFile($ncxFinal, $this->bookRoot."book.ncx");
1871 } else {
1872 $this->zip->addFile(mb_convert_encoding($ncxFinal, "UTF-8"), $this->bookRoot."book.ncx");
1873 }
1874
1875 $this->opf = NULL;
1876 $this->ncx = NULL;
1877
1878 $this->isFinalized = TRUE;
1879 return TRUE;
1880 }
1881
1882 /**
1883 * Ensure the encoded string is a valid UTF-8 string.
1884 *
1885 * Note, that a mb_detect_encoding on the returned string will still return ASCII if the entire string is comprized of characters in the 1-127 range.
1886 *
1887 * @link: http://snippetdb.com/php/convert-string-to-utf-8-for-mysql
1888 * @param string $in_str
1889 * @return string converted string.
1890 */
1891 function fixEncoding($in_str) {
1892 if (mb_detect_encoding($in_str) == "UTF-8" && mb_check_encoding($in_str,"UTF-8")) {
1893 return $in_str;
1894 } else {
1895 return utf8_encode($in_str);
1896 }
1897 }
1898
1899 /**
1900 * Return the finalized book.
1901 *
1902 * @return string with the book in binary form.
1903 */
1904 function getBook() {
1905 if (!$this->isFinalized) {
1906 $this->finalize();
1907 }
1908
1909 return $this->zip->getZipData();
1910 }
1911
1912 /**
1913 * Remove disallowed characters from string to get a nearly safe filename
1914 *
1915 * @param string $fileName
1916 * @return mixed|string
1917 */
1918 function sanitizeFileName($fileName) {
1919 $fileName1 = str_replace($this->forbiddenCharacters, '', $fileName);
1920 $fileName2 = preg_replace('/[\s-]+/', '-', $fileName1);
1921 return trim($fileName2, '.-_');
1922
1923 }
1924
1925 /**
1926 * Cleanup the filepath, and remove leading . and / characters.
1927 *
1928 * Sometimes, when a path is generated from multiple fragments,
1929 * you can get something like "../data/html/../images/image.jpeg"
1930 * ePub files don't work well with that, this will normalize that
1931 * example path to "data/images/image.jpeg"
1932 *
1933 * @param string $fileName
1934 * @return string normalized filename
1935 */
1936 function normalizeFileName($fileName) {
1937 return preg_replace('#^[/\.]+#i', "", Zip::getRelativePath($fileName));
1938 }
1939
1940 /**
1941 * Save the ePub file to local disk.
1942 *
1943 * @param string $fileName
1944 * @param string $baseDir If empty baseDir is absolute to server path, if omitted it's relative to script path
1945 * @return The sent file name if successfull, FALSE if it failed.
1946 */
1947 function saveBook($fileName, $baseDir = '.') {
1948
1949 // Make fileName safe
1950 $fileName = $this->sanitizeFileName($fileName);
1951
1952 // Finalize book, if it's not done already
1953 if (!$this->isFinalized) {
1954 $this->finalize();
1955 }
1956
1957 if (stripos(strrev($fileName), "bupe.") !== 0) {
1958 $fileName .= ".epub";
1959 }
1960
1961 // Try to open file access
1962 $fh = fopen($baseDir.'/'.$fileName, "w");
1963
1964 if ($fh) {
1965 fputs($fh, $this->getBook());
1966 fclose($fh);
1967
1968 // if file is written return TRUE
1969 return $fileName;
1970 }
1971
1972 // return FALSE by default
1973 return FALSE;
1974 }
1975
1976 /**
1977 * Return the finalized book size.
1978 *
1979 * @return string
1980 */
1981 function getBookSize() {
1982 if (!$this->isFinalized) {
1983 $this->finalize();
1984 }
1985
1986 return $this->zip->getArchiveSize();
1987 }
1988
1989 /**
1990 * Send the book as a zip download
1991 *
1992 * Sending will fail if the output buffer is in use. You can override this limit by
1993 * calling setIgnoreEmptyBuffer(TRUE), though the function will still fail if that
1994 * buffer is not empty.
1995 *
1996 * @param string $fileName The name of the book without the .epub at the end.
1997 * @return The sent file name if successfull, FALSE if it failed.
1998 */
1999 function sendBook($fileName) {
2000 if (!$this->isFinalized) {
2001 $this->finalize();
2002 }
2003
2004 if (stripos(strrev($fileName), "bupe.") !== 0) {
2005 $fileName .= ".epub";
2006 }
2007
2008 if (TRUE === $this->zip->sendZip($fileName, "application/epub+zip")) {
2009 return $fileName;
2010 }
2011 return FALSE;
2012 }
2013
2014 /**
2015 * Generates an UUID.
2016 *
2017 * Default version (4) will generate a random UUID, version 3 will URL based UUID.
2018 *
2019 * Added for convinience
2020 *
2021 * @param int $bookVersion UUID version to retrieve, See lib.uuid.manual.html for details.
2022 * @param string $url
2023 * @return string The formatted uuid
2024 */
2025 function createUUID($bookVersion = 4, $url = NULL) {
2026 include_once("lib.uuid.php");
2027 return UUID::mint($bookVersion, $url, UUID::nsURL);
2028 }
2029
2030 /**
2031 * Get the url of the current page.
2032 * Example use: Default Source URL
2033 *
2034 * $return string Page URL.
2035 */
2036 function getCurrentPageURL() {
2037 $pageURL = $this->getCurrentServerURL() . filter_input(INPUT_SERVER, "REQUEST_URI");
2038 return $pageURL;
2039 }
2040
2041 /**
2042 * Get the url of the server.
2043 * Example use: Default Publisher URL
2044 *
2045 * $return string Server URL.
2046 */
2047 function getCurrentServerURL() {
2048 $serverURL = 'http';
2049 $https = filter_input(INPUT_SERVER, "HTTPS");
2050 $port = filter_input(INPUT_SERVER, "SERVER_PORT");
2051
2052 if ($https === "on") {
2053 $serverURL .= "s";
2054 }
2055 $serverURL .= "://" . filter_input(INPUT_SERVER, "SERVER_NAME");
2056 if ($port != "80") {
2057 $serverURL .= ":" . $port;
2058 }
2059 return $serverURL . '/';
2060 }
2061
2062 /**
2063 * Try to determine the mimetype of the file path.
2064 *
2065 * @param string $source Path
2066 * @return string mimetype, or FALSE.
2067 */
2068 function getMime($source) {
2069 return $this->mimetypes[pathinfo($source, PATHINFO_EXTENSION)];
2070 }
2071
2072 /**
2073 * Get an image from a file or url, return it resized if the image exceeds the $maxImageWidth or $maxImageHeight directives.
2074 *
2075 * The return value is an array.
2076 * ['width'] is the width of the image.
2077 * ['height'] is the height of the image.
2078 * ['mime'] is the mime type of the image. Resized images are always in jpeg format.
2079 * ['image'] is the image data.
2080 * ['ext'] is the extension of the image file.
2081 *
2082 * @param string $source path or url to file.
2083 * $return array
2084 */
2085 function getImage($source) {
2086 $width = -1;
2087 $height = -1;
2088 $mime = "application/octet-stream";
2089 $type = FALSE;
2090 $ext = "";
2091
2092
2093 $image = $this->getFileContents($source);
2094
2095 if ($image !== FALSE && strlen($image) > 0) {
2096 $imageFile = imagecreatefromstring($image);
2097 if ($imageFile !== false) {
2098 $width = ImageSX($imageFile);
2099 $height = ImageSY($imageFile);
2100 }
2101 if ($this->isExifInstalled) {
2102 @$type = exif_imagetype($source);
2103 $mime = image_type_to_mime_type($type);
2104 }
2105 if ($mime === "application/octet-stream") {
2106 $mime = $this->image_file_type_from_binary($image);
2107 }
2108 if ($mime === "application/octet-stream") {
2109 $mime = $this->getMimeTypeFromUrl($source);
2110 }
2111 } else {
2112 return FALSE;
2113 }
2114
2115 if ($width <= 0 || $height <= 0) {
2116 return FALSE;
2117 }
2118
2119 $ratio = 1;
2120
2121 if ($this->isGdInstalled) {
2122 if ($width > $this->maxImageWidth) {
2123 $ratio = $this->maxImageWidth/$width;
2124 }
2125 if ($height*$ratio > $this->maxImageHeight) {
2126 $ratio = $this->maxImageHeight/$height;
2127 }
2128
2129 if ($ratio < 1 || empty($mime) || ($this->isGifImagesEnabled !== FALSE && $mime == "image/gif")) {
2130 $image_o = imagecreatefromstring($image);
2131 $image_p = imagecreatetruecolor($width*$ratio, $height*$ratio);
2132
2133 if ($mime == "image/png") {
2134 imagealphablending($image_p, false);
2135 imagesavealpha($image_p, true);
2136 imagealphablending($image_o, true);
2137
2138 imagecopyresampled($image_p, $image_o, 0, 0, 0, 0, ($width*$ratio), ($height*$ratio), $width, $height);
2139 ob_start();
2140 imagepng($image_p, NULL, 9);
2141 $image = ob_get_contents();
2142 ob_end_clean();
2143
2144 $ext = "png";
2145 } else {
2146 imagecopyresampled($image_p, $image_o, 0, 0, 0, 0, ($width*$ratio), ($height*$ratio), $width, $height);
2147 ob_start();
2148 imagejpeg($image_p, NULL, 80);
2149 $image = ob_get_contents();
2150 ob_end_clean();
2151
2152 $mime = "image/jpeg";
2153 $ext = "jpg";
2154 }
2155 imagedestroy($image_o);
2156 imagedestroy($image_p);
2157 }
2158 }
2159
2160 if ($ext === "") {
2161 static $mimeToExt = array (
2162 'image/jpeg' => 'jpg',
2163 'image/gif' => 'gif',
2164 'image/png' => 'png'
2165 );
2166
2167 if (isset($mimeToExt[$mime])) {
2168 $ext = $mimeToExt[$mime];
2169 }
2170 }
2171
2172 $rv = array();
2173 $rv['width'] = $width*$ratio;
2174 $rv['height'] = $height*$ratio;
2175 $rv['mime'] = $mime;
2176 $rv['image'] = $image;
2177 $rv['ext'] = $ext;
2178
2179 return $rv;
2180 }
2181
2182 /**
2183 * Get file contents, using curl if available, else file_get_contents
2184 *
2185 * @param string $source
2186 * @return bool
2187 */
2188 function getFileContents($source, $toTempFile = FALSE) {
2189 $isExternal = preg_match('#^(http|ftp)s?://#i', $source) == 1;
2190
2191 if ($isExternal && $this->isCurlInstalled) {
2192 $ch = curl_init();
2193 $outFile = NULL;
2194 $fp = NULL;
2195 $res = FALSE;
2196 $info = array('http_code' => 500);
2197
2198 curl_setopt($ch, CURLOPT_HEADER, 0);
2199 curl_setopt($ch, CURLOPT_URL, str_replace(" ","%20",$source));
2200 curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
2201 curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
2202 curl_setopt($ch, CURLOPT_BUFFERSIZE, 4096);
2203
2204 if ($toTempFile) {
2205 $outFile = tempnam(sys_get_temp_dir(), "EPub_v" . EPub::VERSION . "_");
2206 $fp = fopen($outFile, "w+b");
2207 curl_setopt($ch, CURLOPT_FILE, $fp);
2208
2209 $res = curl_exec($ch);
2210 $info = curl_getinfo($ch);
2211
2212 curl_close($ch);
2213 fclose($fp);
2214 } else {
2215 $res = curl_exec($ch);
2216 $info = curl_getinfo($ch);
2217
2218 curl_close($ch);
2219 }
2220
2221 if ($info['http_code'] == 200 && $res != false) {
2222 if ($toTempFile) {
2223 return $outFile;
2224 }
2225 return $res;
2226 }
2227 return FALSE;
2228 }
2229
2230 if ($this->isFileGetContentsInstalled && (!$isExternal || $this->isFileGetContentsExtInstalled)) {
2231 @$data = file_get_contents($source);
2232 return $data;
2233 }
2234 return FALSE;
2235 }
2236
2237 /**
2238 * get mime type from image data
2239 *
2240 * By fireweasel found on http://stackoverflow.com/questions/2207095/get-image-mimetype-from-resource-in-php-gd
2241 * @staticvar array $type
2242 * @param object $binary
2243 * @return string
2244 */
2245 function image_file_type_from_binary($binary) {
2246 $hits = 0;
2247 if (!preg_match(
2248 '/\A(?:(\xff\xd8\xff)|(GIF8[79]a)|(\x89PNG\x0d\x0a)|(BM)|(\x49\x49(?:\x2a\x00|\x00\x4a))|(FORM.{4}ILBM))/',
2249 $binary, $hits)) {
2250 return 'application/octet-stream';
2251 }
2252 static $type = array (
2253 1 => 'image/jpeg',
2254 2 => 'image/gif',
2255 3 => 'image/png',
2256 4 => 'image/x-windows-bmp',
2257 5 => 'image/tiff',
2258 6 => 'image/x-ilbm',
2259 );
2260 return $type[count($hits) - 1];
2261 }
2262
2263 /**
2264 * @param string $source URL Source
2265 * @return string MimeType
2266 */
2267 function getMimeTypeFromUrl($source) {
2268 $ext = FALSE;
2269
2270 $srev = strrev($source);
2271 $pos = strpos($srev, "?");
2272 if ($pos !== FALSE) {
2273 $srev = substr($srev, $pos+1);
2274 }
2275
2276 $pos = strpos($srev, ".");
2277 if ($pos !== FALSE) {
2278 $ext = strtolower(strrev(substr($srev, 0, $pos)));
2279 }
2280
2281 if ($ext !== FALSE) {
2282 return $this->getMimeTypeFromExtension($ext);
2283 }
2284 return "application/octet-stream";
2285 }
2286
2287 /**
2288 * @param string $ext Extension
2289 * @return string MimeType
2290 */
2291 function getMimeTypeFromExtension($ext) {
2292 switch ($ext) {
2293 case "jpg":
2294 case "jpe":
2295 case "jpeg":
2296 return 'image/jpeg';
2297 case "gif":
2298 return 'image/gif';
2299 case "png":
2300 return 'image/png';
2301 case "bmp":
2302 return 'image/x-windows-bmp';
2303 case "tif":
2304 case "tiff":
2305 case "cpt":
2306 return 'image/tiff';
2307 case "lbm":
2308 case "ilbm":
2309 return 'image/x-ilbm';
2310 default:
2311 return "application/octet-stream";
2312 }
2313 }
2314
2315 /**
2316 * Encode html code to use html entities, safeguarding it from potential character encoding peoblems
2317 * This function is a bit different from the vanilla htmlentities function in that it does not encode html tags.
2318 *
2319 * The regexp is taken from the PHP Manual discussion, it was written by user "busbyjon".
2320 * http://www.php.net/manual/en/function.htmlentities.php#90111
2321 *
2322 * @param string $string string to encode.
2323 */
2324 public function encodeHtml($string) {
2325 $string = strtr($string, $this->html_encoding_characters);
2326
2327 //return preg_replace("/&amp;(?![A-Za-z]{0,4}\w{2,3};|#[0-9]{2,5};)/", "&\\1", $string);
2328 //return preg_replace("/&(?![A-Za-z]{0,4}\w{2,3};|#[0-9]{2,5};)/", "&amp;", $string);
2329 return $string;
2330 }
2331
2332 /**
2333 * Helper function to create a DOM fragment with given markup.
2334 *
2335 * @author Adam Schmalhofer
2336 *
2337 * @param DOMDocument $dom
2338 * @param string $markup
2339 * @return DOMNode fragment in a node.
2340 */
2341 protected function createDomFragment($dom, $markup) {
2342 $node = $dom->createDocumentFragment();
2343 $node->appendXML($markup);
2344 return $node;
2345 }
2346
2347 /**
2348 * Retrieve an array of file names currently added to the book.
2349 * $key is the filename used in the book
2350 * $value is the original filename, will be the same as $key for most entries
2351 *
2352 * @return array file list
2353 */
2354 function getFileList() {
2355 return $this->fileList;
2356 }
2357
2358 /**
2359 * @deprecated Use Zip::getRelativePath($relPath) instead.
2360 */
2361 function relPath($relPath) {
2362 die ("Function was deprecated, use Zip::getRelativePath(\$relPath); instead");
2363 }
2364
2365 /**
2366 * Set default chapter target size.
2367 * Default is 250000 bytes, and minimum is 10240 bytes.
2368 *
2369 * @param int $size segment size in bytes
2370 * @return void
2371 */
2372 function setSplitSize($size) {
2373 $this->splitDefaultSize = (int)$size;
2374 if ($size < 10240) {
2375 $this->splitDefaultSize = 10240; // Making the file smaller than 10k is not a good idea.
2376 }
2377 }
2378
2379 /**
2380 * Get the chapter target size.
2381 *
2382 * @return $size
2383 */
2384 function getSplitSize() {
2385 return $this->splitDefaultSize;
2386 }
2387
2388 /**
2389 * Remove all non essential html tags and entities.
2390 *
2391 * @global type $htmlEntities
2392 * @param string $string
2393 * @return string with the stripped entities.
2394 */
2395 function decodeHtmlEntities($string) {
2396 global $htmlEntities;
2397
2398 $string = preg_replace('~\s*<br\s*/*\s*>\s*~i', "\n", $string);
2399 $string = preg_replace('~\s*</(p|div)\s*>\s*~i', "\n\n", $string);
2400 $string = preg_replace('~<[^>]*>~', '', $string);
2401
2402 $string = strtr($string, $htmlEntities);
2403
2404 $string = str_replace('&', '&amp;', $string);
2405 $string = str_replace('&amp;amp;', '&amp;', $string);
2406 $string = preg_replace('~&amp;(#x*[a-fA-F0-9]+;)~', '&\1', $string);
2407 $string = str_replace('<', '&lt;', $string);
2408 $string = str_replace('>', '&gt;', $string);
2409
2410 return $string;
2411 }
2412
2413 /**
2414 * Simply remove all HTML tags, brute force and no finesse.
2415 *
2416 * @param string $string html
2417 * @return string
2418 */
2419 function html2text($string) {
2420 return preg_replace('~<[^>]*>~', '', $string);
2421 }
2422
2423 /**
2424 * @return string
2425 */
2426 function getLog() {
2427 return $this->log->getLog();
2428 }
2429}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 00:27:02 +0000