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/typo3/sysext/indexed_search/class.external_parser.php

https://bitbucket.org/linxpinx/mercurial
PHP | 677 lines | 425 code | 69 blank | 183 comment | 79 complexity | ee6761db770ed0a6158a3126cff4677e MD5 | raw file
Possible License(s): BSD-3-Clause, GPL-2.0, Unlicense, LGPL-2.1, Apache-2.0 
    

  1. <?php
    2. 

  2. /***************************************************************
    3. 

  3. *  Copyright notice
    4. 

  4. *
    5. 

  5. *  (c) 2001-2010 Kasper Skaarhoj (kasperYYYY@typo3.com)
    6. 

  6. *  All rights reserved
    7. 

  7. *
    8. 

  8. *  This script is part of the TYPO3 project. The TYPO3 project is
    9. 

  9. *  free software; you can redistribute it and/or modify
    10. 

  10. *  it under the terms of the GNU General Public License as published by
    11. 

  11. *  the Free Software Foundation; either version 2 of the License, or
    12. 

  12. *  (at your option) any later version.
    13. 

  13. *
    14. 

  14. *  The GNU General Public License can be found at
    15. 

  15. *  http://www.gnu.org/copyleft/gpl.html.
    16. 

  16. *  A copy is found in the textfile GPL.txt and important notices to the license
    17. 

  17. *  from the author is found in LICENSE.txt distributed with these scripts.
    18. 

  18. *
    19. 

  19. *
    20. 

  20. *  This script is distributed in the hope that it will be useful,
    21. 

  21. *  but WITHOUT ANY WARRANTY; without even the implied warranty of
    22. 

  22. *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    23. 

  23. *  GNU General Public License for more details.
    24. 

  24. *
    25. 

  25. *  This copyright notice MUST APPEAR in all copies of the script!
    26. 

  26. ***************************************************************/
    27. 

  27. /**
    28. 

  28.  * External standard parsers for indexed_search
    29. 

  29.  *
    30. 

  30.  * @author	Kasper Sk?rh?j <kasperYYYY@typo3.com>
    31. 

  31.  * @coauthor	Olivier Simah <noname_paris@yahoo.fr>
    32. 

  32.  */
    33. 

  33. /**
    34. 

  34.  * [CLASS/FUNCTION INDEX of SCRIPT]
    35. 

  35.  *
    36. 

  36.  *
    37. 

  37.  *
    38. 

  38.  *   75: class tx_indexed_search_extparse
    39. 

  39.  *   94:     function initParser($extension)
    40. 

  40.  *  214:     function softInit($extension)
    41. 

  41.  *  247:     function searchTypeMediaTitle($extension)
    42. 

  42.  *  323:     function isMultiplePageExtension($extension)
    43. 

  43.  *
    44. 

  44.  *              SECTION: Reading documents (for parsing)
    45. 

  45.  *  354:     function readFileContent($ext,$absFile,$cPKey)
    46. 

  46.  *  521:     function fileContentParts($ext,$absFile)
    47. 

  47.  *  560:     function splitPdfInfo($pdfInfoArray)
    48. 

  48.  *  579:     function removeEndJunk($string)
    49. 

  49.  *
    50. 

  50.  *              SECTION: Backend analyzer
    51. 

  51.  *  606:     function getIcon($extension)
    52. 

  52.  *
    53. 

  53.  * TOTAL FUNCTIONS: 9
    54. 

  54.  * (This index is automatically created/updated by the extension "extdeveval")
    55. 

  55.  *
    56. 

  56.  */
    57. 

  57. 

  58. 

  59. 

  60. 

  61. 

  62. 

  63. 

  64. 

  65. 

  66. 

  67. /**
    68. 

  68.  * External standard parsers for indexed_search
    69. 

  69.  * MUST RETURN utf-8 content!
    70. 

  70.  *
    71. 

  71.  * @author	Kasper Skaarhoj <kasperYYYY@typo3.com>
    72. 

  72.  * @package TYPO3
    73. 

  73.  * @subpackage tx_indexedsearch
    74. 

  74.  */
    75. 

  75. class tx_indexed_search_extparse {
    76. 

  76. 

  77. 		// This value is also overridden from config.
    78. 

  78. 	var $pdf_mode = -20;	// zero: whole PDF file is indexed in one. positive value: Indicates number of pages at a time, eg. "5" would means 1-5,6-10,.... Negative integer would indicate (abs value) number of groups. Eg "3" groups of 10 pages would be 1-4,5-8,9-10
    79. 

  79. 

  80. 		// This array is configured in initialization:
    81. 

  81. 	var $app = array();
    82. 

  82. 	var $ext2itemtype_map = array();
    83. 

  83. 	var $supportedExtensions = array();
    84. 

  84. 

  85. 	var $pObj;		// Reference to parent object (indexer class)
    86. 

  86. 	protected $langObject;	// Reference to LANG-Object
    87. 

  87. 

  88. 	/**
    89. 

  89. 	 * Constructs this external parsers object
    90. 

  90. 	 */
    91. 

  91. 	public function __construct() {
    92. 

  92. 			// Set the language object to be used accordant to current TYPO3_MODE:
    93. 

  93. 		$this->langObject = (TYPO3_MODE == 'FE' ? $GLOBALS['TSFE'] : $GLOBALS['LANG']);
    94. 

  94. 	}
    95. 

  95. 

  96. 	/**
    97. 

  97. 	 * Initialize external parser for parsing content.
    98. 

  98. 	 *
    99. 

  99. 	 * @param	string		File extension
    100. 

  100. 	 * @return	boolean		Returns true if extension is supported/enabled, otherwise false.
    101. 

  101. 	 */
    102. 

  102. 	function initParser($extension)	{
    103. 

  103. 

  104. 			// Then read indexer-config and set if appropriate:
    105. 

  105. 		$indexerConfig = unserialize($GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf']['indexed_search']);
    106. 

  106. 

  107. 			// If windows, apply extension to tool name:
    108. 

  108. 		$exe = (TYPO3_OS == 'WIN') ? '.exe' : ''; // lg
    109. 

  109. 		$extOK = FALSE;
    110. 

  110. 		$mainExtension = '';
    111. 

  111. 

  112. 			// Ignore extensions
    113. 

  113. 		$ignoreExtensions = t3lib_div::trimExplode(',', strtolower($indexerConfig['ignoreExtensions']),1);
    114. 

  114. 		if (in_array($extension, $ignoreExtensions))	{
    115. 

  115. 			$this->pObj->log_setTSlogMessage(sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:ignoreExtensions'), $extension), 1);
    116. 

  116. 			return FALSE;
    117. 

  117. 		}
    118. 

  118. 

  119. 			// Switch on file extension:
    120. 

  120. 		switch($extension)	{
    121. 

  121. 			case 'pdf':
    122. 

  122. 					// PDF
    123. 

  123. 				if ($indexerConfig['pdftools'])	{
    124. 

  124. 					$pdfPath = rtrim($indexerConfig['pdftools'], '/').'/';
    125. 

  125. 					if (ini_get('safe_mode') || (@is_file($pdfPath.'pdftotext'.$exe) && @is_file($pdfPath.'pdfinfo'.$exe)))	{
    126. 

  126. 						$this->app['pdfinfo'] = $pdfPath.'pdfinfo'.$exe;
    127. 

  127. 						$this->app['pdftotext'] = $pdfPath.'pdftotext'.$exe;
    128. 

  128. 							// PDF mode:
    129. 

  129. 						$this->pdf_mode = t3lib_div::intInRange($indexerConfig['pdf_mode'],-100,100);
    130. 

  130. 						$extOK = TRUE;
    131. 

  131. 					} else $this->pObj->log_setTSlogMessage(sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:pdfToolsNotFound'), $pdfPath), 3);
    132. 

  132. 				} else $this->pObj->log_setTSlogMessage($this->sL('LLL:EXT:indexed_search/locallang.xml:pdfToolsDisabled'), 1);
    133. 

  133. 			break;
    134. 

  134. 			case 'doc':
    135. 

  135. 					// Catdoc
    136. 

  136. 				if ($indexerConfig['catdoc'])	{
    137. 

  137. 					$catdocPath = rtrim($indexerConfig['catdoc'], '/').'/';
    138. 

  138. 					if (ini_get('safe_mode') || @is_file($catdocPath.'catdoc'.$exe))	{
    139. 

  139. 						$this->app['catdoc'] = $catdocPath.'catdoc'.$exe;
    140. 

  140. 						$extOK = TRUE;
    141. 

  141. 					} else $this->pObj->log_setTSlogMessage(sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:catdocNotFound'), $catdocPath), 3);
    142. 

  142. 				} else $this->pObj->log_setTSlogMessage($this->sL('LLL:EXT:indexed_search/locallang.xml:catdocDisabled'), 1);
    143. 

  143. 			break;
    144. 

  144. 			case 'pps':		// MS PowerPoint(?)
    145. 

  145. 			case 'ppt':		// MS PowerPoint
    146. 

  146. 					// ppthtml
    147. 

  147. 				if ($indexerConfig['ppthtml'])	{
    148. 

  148. 					$ppthtmlPath = rtrim($indexerConfig['ppthtml'], '/').'/';
    149. 

  149. 					if (ini_get('safe_mode') || @is_file($ppthtmlPath.'ppthtml'.$exe)){
    150. 

  150. 						$this->app['ppthtml'] = $ppthtmlPath.'ppthtml'.$exe;
    151. 

  151. 						$extOK = TRUE;
    152. 

  152. 					} else $this->pObj->log_setTSlogMessage(sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:ppthtmlNotFound'), $ppthtmlPath), 3);
    153. 

  153. 				} else $this->pObj->log_setTSlogMessage($this->sL('LLL:EXT:indexed_search/locallang.xml:ppthtmlDisabled'), 1);
    154. 

  154. 			break;
    155. 

  155. 			case 'xls':		// MS Excel
    156. 

  156. 					// Xlhtml
    157. 

  157. 				if ($indexerConfig['xlhtml'])	{
    158. 

  158. 					$xlhtmlPath = rtrim($indexerConfig['xlhtml'], '/').'/';
    159. 

  159. 					if (ini_get('safe_mode') || @is_file($xlhtmlPath.'xlhtml'.$exe)){
    160. 

  160. 						$this->app['xlhtml'] = $xlhtmlPath.'xlhtml'.$exe;
    161. 

  161. 						$extOK = TRUE;
    162. 

  162. 					} else $this->pObj->log_setTSlogMessage(sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:xlhtmlNotFound'), $xlhtmlPath), 3);
    163. 

  163. 				} else $this->pObj->log_setTSlogMessage($this->sL('LLL:EXT:indexed_search/locallang.xml:xlhtmlDisabled'), 1);
    164. 

  164. 			break;
    165. 

  165. 			case 'sxc':		// Open Office Calc.
    166. 

  166. 			case 'sxi':		// Open Office Impress
    167. 

  167. 			case 'sxw':		// Open Office Writer
    168. 

  168. 			case 'ods':		// Oasis OpenDocument Spreadsheet
    169. 

  169. 			case 'odp':		// Oasis OpenDocument Presentation
    170. 

  170. 			case 'odt':		// Oasis OpenDocument Text
    171. 

  171. 				if ($indexerConfig['unzip'])	{
    172. 

  172. 					$unzipPath = rtrim($indexerConfig['unzip'], '/').'/';
    173. 

  173. 					if (ini_get('safe_mode') || @is_file($unzipPath.'unzip'.$exe))	{
    174. 

  174. 						$this->app['unzip'] = $unzipPath.'unzip'.$exe;
    175. 

  175. 						$extOK = TRUE;
    176. 

  176. 					} else $this->pObj->log_setTSlogMessage(sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:unzipNotFound'), $unzipPath), 3);
    177. 

  177. 				} else $this->pObj->log_setTSlogMessage($this->sL('LLL:EXT:indexed_search/locallang.xml:unzipDisabled'), 1);
    178. 

  178. 			break;
    179. 

  179. 			case 'rtf':
    180. 

  180. 					// Catdoc
    181. 

  181. 				if ($indexerConfig['unrtf'])	{
    182. 

  182. 					$unrtfPath = rtrim($indexerConfig['unrtf'], '/').'/';
    183. 

  183. 					if (ini_get('safe_mode') || @is_file($unrtfPath.'unrtf'.$exe))	{
    184. 

  184. 						$this->app['unrtf'] = $unrtfPath.'unrtf'.$exe;
    185. 

  185. 						$extOK = TRUE;
    186. 

  186. 					} else $this->pObj->log_setTSlogMessage(sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:unrtfNotFound'), $unrtfPath), 3);
    187. 

  187. 				} else $this->pObj->log_setTSlogMessage($this->sL('LLL:EXT:indexed_search/locallang.xml:unrtfDisabled'), 1);
    188. 

  188. 			break;
    189. 

  189. 			case 'txt':		// Raw text
    190. 

  190. 			case 'csv':		// Raw text
    191. 

  191. 			case 'xml':		// PHP strip-tags()
    192. 

  192. 			case 'tif':		// PHP EXIF
    193. 

  193. 				$extOK = TRUE;
    194. 

  194. 			break;
    195. 

  195. 			case 'html':	// PHP strip-tags()
    196. 

  196. 			case 'htm':		// PHP strip-tags()
    197. 

  197. 				$extOK = TRUE;
    198. 

  198. 				$mainExtension = 'html';	// making "html" the common "item_type"
    199. 

  199. 			break;
    200. 

  200. 			case 'jpg':		// PHP EXIF
    201. 

  201. 			case 'jpeg':	// PHP EXIF
    202. 

  202. 				$extOK = TRUE;
    203. 

  203. 				$mainExtension = 'jpeg';	// making "jpeg" the common item_type
    204. 

  204. 			break;
    205. 

  205. 		}
    206. 

  206. 

  207. 			// If extension was OK:
    208. 

  208. 		if ($extOK)	{
    209. 

  209. 			$this->supportedExtensions[$extension] = TRUE;
    210. 

  210. 			$this->ext2itemtype_map[$extension] = $mainExtension ? $mainExtension : $extension;
    211. 

  211. 			return TRUE;
    212. 

  212. 		}
    213. 

  213. 	}
    214. 

  214. 

  215. 	/**
    216. 

  216. 	 * Initialize external parser for backend modules
    217. 

  217. 	 * Doesn't evaluate if parser is configured right - more like returning POSSIBLE supported extensions (for showing icons etc) in backend and frontend plugin
    218. 

  218. 	 *
    219. 

  219. 	 * @param	string		File extension to initialize for.
    220. 

  220. 	 * @return	boolean		Returns true if the extension is supported and enabled, otherwise false.
    221. 

  221. 	 */
    222. 

  222. 	function softInit($extension)	{
    223. 

  223. 		switch($extension)	{
    224. 

  224. 			case 'pdf':		// PDF
    225. 

  225. 			case 'doc':		// MS Word files
    226. 

  226. 			case 'pps':		// MS PowerPoint
    227. 

  227. 			case 'ppt':		// MS PowerPoint
    228. 

  228. 			case 'xls':		// MS Excel
    229. 

  229. 			case 'sxc':		// Open Office Calc.
    230. 

  230. 			case 'sxi':		// Open Office Impress
    231. 

  231. 			case 'sxw':		// Open Office Writer
    232. 

  232. 			case 'ods':		// Oasis OpenDocument Spreadsheet
    233. 

  233. 			case 'odp':		// Oasis OpenDocument Presentation
    234. 

  234. 			case 'odt':		// Oasis OpenDocument Text
    235. 

  235. 			case 'rtf':		// RTF documents
    236. 

  236. 			case 'txt':		// ASCII Text documents
    237. 

  237. 			case 'html':	// HTML
    238. 

  238. 			case 'htm':		// HTML
    239. 

  239. 			case 'csv':		// Comma Separated Values
    240. 

  240. 			case 'xml':		// Generic XML
    241. 

  241. 			case 'jpg':		// Jpeg images (EXIF comment)
    242. 

  242. 			case 'jpeg':	// Jpeg images (EXIF comment)
    243. 

  243. 			case 'tif':		// TIF images (EXIF comment)
    244. 

  244. 				return TRUE;
    245. 

  245. 			break;
    246. 

  246. 		}
    247. 

  247. 	}
    248. 

  248. 

  249. 	/**
    250. 

  250. 	 * Return title of entry in media type selector box.
    251. 

  251. 	 *
    252. 

  252. 	 * @param	string		File extension
    253. 

  253. 	 * @return	string		String with label value of entry in media type search selector box (frontend plugin).
    254. 

  254. 	 */
    255. 

  255. 	function searchTypeMediaTitle($extension)	{
    256. 

  256. 

  257. 			// Read indexer-config
    258. 

  258. 		$indexerConfig = unserialize($GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf']['indexed_search']);
    259. 

  259. 

  260. 			// Ignore extensions
    261. 

  261. 		$ignoreExtensions = t3lib_div::trimExplode(',', strtolower($indexerConfig['ignoreExtensions']),1);
    262. 

  262. 		if (in_array($extension, $ignoreExtensions))	{
    263. 

  263. 			return FALSE;
    264. 

  264. 		}
    265. 

  265. 

  266. 			// Switch on file extension:
    267. 

  267. 		switch($extension)	{
    268. 

  268. 			case 'pdf':
    269. 

  269. 					// PDF
    270. 

  270. 				if ($indexerConfig['pdftools'])	{
    271. 

  271. 					return sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:extension.PDF'), $extension);
    272. 

  272. 				}
    273. 

  273. 			break;
    274. 

  274. 			case 'doc':
    275. 

  275. 					// Catdoc
    276. 

  276. 				if ($indexerConfig['catdoc'])	{
    277. 

  277. 					return sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:extension.DOC'), $extension);
    278. 

  278. 				}
    279. 

  279. 			break;
    280. 

  280. 			case 'pps':		// MS PowerPoint(?)
    281. 

  281. 			case 'ppt':		// MS PowerPoint
    282. 

  282. 					// ppthtml
    283. 

  283. 				if ($indexerConfig['ppthtml'])	{
    284. 

  284. 					return sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:extension.PP'), $extension);
    285. 

  285. 				}
    286. 

  286. 			break;
    287. 

  287. 			case 'xls':		// MS Excel
    288. 

  288. 					// Xlhtml
    289. 

  289. 				if ($indexerConfig['xlhtml'])	{
    290. 

  290. 					return sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:extension.XLS'), $extension);
    291. 

  291. 				}
    292. 

  292. 			break;
    293. 

  293. 			case 'sxc':		// Open Office Calc.
    294. 

  294. 			if ($indexerConfig['unzip'])	{
    295. 

  295. 					return sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:extension.SXC'), $extension);
    296. 

  296. 				}
    297. 

  297. 			break;
    298. 

  298. 			case 'sxi':		// Open Office Impress
    299. 

  299. 			if ($indexerConfig['unzip'])	{
    300. 

  300. 					return sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:extension.SXI'), $extension);
    301. 

  301. 				}
    302. 

  302. 			break;
    303. 

  303. 			case 'sxw':		// Open Office Writer
    304. 

  304. 			if ($indexerConfig['unzip'])	{
    305. 

  305. 					return sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:extension.SXW'), $extension);
    306. 

  306. 				}
    307. 

  307. 			break;
    308. 

  308. 			case 'ods':		// Oasis OpenDocument Spreadsheet
    309. 

  309. 			if ($indexerConfig['unzip'])	{
    310. 

  310. 					return sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:extension.ODS'), $extension);
    311. 

  311. 				}
    312. 

  312. 			break;
    313. 

  313. 			case 'odp':		// Oasis OpenDocument Presentation
    314. 

  314. 				if ($indexerConfig['unzip'])	{
    315. 

  315. 					return sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:extension.ODP'), $extension);
    316. 

  316. 				}
    317. 

  317. 			break;
    318. 

  318. 			case 'odt':		// Oasis OpenDocument Text
    319. 

  319. 				if ($indexerConfig['unzip'])	{
    320. 

  320. 					return sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:extension.ODT'), $extension);
    321. 

  321. 				}
    322. 

  322. 			break;
    323. 

  323. 			case 'rtf':
    324. 

  324. 					// Catdoc
    325. 

  325. 				if ($indexerConfig['unrtf'])	{
    326. 

  326. 					return sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:extension.RTF'), $extension);
    327. 

  327. 				}
    328. 

  328. 			break;
    329. 

  329. 			case 'jpeg':	// PHP EXIF
    330. 

  330. 			case 'tif':		// PHP EXIF
    331. 

  331. 				return sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:extension.Images'), $extension);
    332. 

  332. 			break;
    333. 

  333. 			case 'html':	// PHP strip-tags()
    334. 

  334. 				return sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:extension.HTML'), $extension);
    335. 

  335. 			break;
    336. 

  336. 			case 'txt':		// Raw text
    337. 

  337. 				return sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:extension.TXT'), $extension);
    338. 

  338. 			break;
    339. 

  339. 			case 'csv':		// Raw text
    340. 

  340. 				return sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:extension.CSV'), $extension);
    341. 

  341. 			break;
    342. 

  342. 			case 'xml':		// PHP strip-tags()
    343. 

  343. 				return sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:extension.XML'), $extension);
    344. 

  344. 			break;
    345. 

  345. 				// NO entry (duplicates or blank):
    346. 

  346. 			case 'htm':		// PHP strip-tags()
    347. 

  347. 			case 'jpg':		// PHP EXIF
    348. 

  348. 			default:
    349. 

  349. 			break;
    350. 

  350. 		}
    351. 

  351. 	}
    352. 

  352. 

  353. 	/**
    354. 

  354. 	 * Returns true if the input extension (item_type) is a potentially a multi-page extension
    355. 

  355. 	 *
    356. 

  356. 	 * @param	string		Extension / item_type string
    357. 

  357. 	 * @return	boolean		Return true if multi-page
    358. 

  358. 	 */
    359. 

  359. 	function isMultiplePageExtension($extension)	{
    360. 

  360. 			// Switch on file extension:
    361. 

  361. 		switch((string)$extension)	{
    362. 

  362. 			case 'pdf':
    363. 

  363. 				return TRUE;
    364. 

  364. 			break;
    365. 

  365. 		}
    366. 

  366. 	}
    367. 

  367. 

  368. 	/**
    369. 

  369. 	 * Wraps the "splitLabel function" of the language object.
    370. 

  370. 	 *
    371. 

  371. 	 * @param	string		$reference: Reference/key of the label
    372. 

  372. 	 * @param	boolean		$useHtmlSpecialChar: Convert special chars to HTML entities (default: false)
    373. 

  373. 	 * @return	string		The label of the reference/key to be fetched
    374. 

  374. 	 */
    375. 

  375. 	protected function sL($reference, $useHtmlSpecialChar = false) {
    376. 

  376. 		return $this->langObject->sL($reference, $useHtmlSpecialChar);
    377. 

  377. 	}
    378. 

  378. 

  379. 

  380. 

  381. 

  382. 

  383. 

  384. 

  385. 

  386. 

  387. 	/************************
    388. 

  388. 	 *
    389. 

  389. 	 * Reading documents (for parsing)
    390. 

  390. 	 *
    391. 

  391. 	 ************************/
    392. 

  392. 

  393. 	/**
    394. 

  394. 	 * Reads the content of an external file being indexed.
    395. 

  395. 	 *
    396. 

  396. 	 * @param	string		File extension, eg. "pdf", "doc" etc.
    397. 

  397. 	 * @param	string		Absolute filename of file (must exist and be validated OK before calling function)
    398. 

  398. 	 * @param	string		Pointer to section (zero for all other than PDF which will have an indication of pages into which the document should be splitted.)
    399. 

  399. 	 * @return	array		Standard content array (title, description, keywords, body keys)
    400. 

  400. 	 */
    401. 

  401. 	function readFileContent($ext,$absFile,$cPKey)	{
    402. 

  402. 		unset($contentArr);
    403. 

  403. 

  404. 			// Return immediately if initialization didn't set support up:
    405. 

  405. 		if (!$this->supportedExtensions[$ext])	return FALSE;
    406. 

  406. 

  407. 			// Switch by file extension
    408. 

  408. 		switch ($ext)	{
    409. 

  409. 			case 'pdf':
    410. 

  410. 				if ($this->app['pdfinfo'])	{
    411. 

  411. 						// Getting pdf-info:
    412. 

  412. 					$cmd = $this->app['pdfinfo'] . ' ' . escapeshellarg($absFile);
    413. 

  413. 					exec($cmd,$res);
    414. 

  414. 					$pdfInfo = $this->splitPdfInfo($res);
    415. 

  415. 					unset($res);
    416. 

  416. 					if (intval($pdfInfo['pages']))	{
    417. 

  417. 						list($low,$high) = explode('-',$cPKey);
    418. 

  418. 

  419. 							// Get pdf content:
    420. 

  420. 						$tempFileName = t3lib_div::tempnam('Typo3_indexer');		// Create temporary name
    421. 

  421. 						@unlink ($tempFileName);	// Delete if exists, just to be safe.
    422. 

  422. 						$cmd = $this->app['pdftotext'] . ' -f ' . $low . ' -l ' . $high . ' -enc UTF-8 -q ' . escapeshellarg($absFile) . ' ' . $tempFileName;
    423. 

  423. 						exec($cmd);
    424. 

  424. 						if (@is_file($tempFileName))	{
    425. 

  425. 							$content = t3lib_div::getUrl($tempFileName);
    426. 

  426. 							unlink($tempFileName);
    427. 

  427. 						} else {
    428. 

  428. 							$this->pObj->log_setTSlogMessage(sprintf($this->sL('LLL:EXT:indexed_search/locallang.xml:pdfToolsFailed'), $absFile), 2);
    429. 

  429. 						}
    430. 

  430. 						if (strlen($content))	{
    431. 

  431. 							$contentArr = $this->pObj->splitRegularContent($this->removeEndJunk($content));
    432. 

  432. 						}
    433. 

  433. 					}
    434. 

  434. 				}
    435. 

  435. 			break;
    436. 

  436. 			case 'doc':
    437. 

  437. 				if ($this->app['catdoc'])	{
    438. 

  438. 					$cmd = $this->app['catdoc'] . ' -d utf-8 ' . escapeshellarg($absFile);
    439. 

  439. 					exec($cmd,$res);
    440. 

  440. 					$content = implode(LF,$res);
    441. 

  441. 					unset($res);
    442. 

  442. 					$contentArr = $this->pObj->splitRegularContent($this->removeEndJunk($content));
    443. 

  443. 				}
    444. 

  444. 			break;
    445. 

  445. 			case 'pps':
    446. 

  446. 			case 'ppt':
    447. 

  447. 				if ($this->app['ppthtml'])	{
    448. 

  448. 					$cmd = $this->app['ppthtml'] . ' ' . escapeshellarg($absFile);
    449. 

  449. 					exec($cmd,$res);
    450. 

  450. 					$content = implode(LF,$res);
    451. 

  451. 					unset($res);
    452. 

  452. 					$content = $this->pObj->convertHTMLToUtf8($content);
    453. 

  453. 					$contentArr = $this->pObj->splitHTMLContent($this->removeEndJunk($content));
    454. 

  454. 					$contentArr['title'] = basename($absFile);	// Make sure the title doesn't expose the absolute path!
    455. 

  455. 				}
    456. 

  456. 			break;
    457. 

  457. 			case 'xls':
    458. 

  458. 				if ($this->app['xlhtml'])	{
    459. 

  459. 					$cmd = $this->app['xlhtml'] . ' -nc -te ' . escapeshellarg($absFile);
    460. 

  460. 					exec($cmd,$res);
    461. 

  461. 					$content = implode(LF,$res);
    462. 

  462. 					unset($res);
    463. 

  463. 					$content = $this->pObj->convertHTMLToUtf8($content);
    464. 

  464. 					$contentArr = $this->pObj->splitHTMLContent($this->removeEndJunk($content));
    465. 

  465. 					$contentArr['title'] = basename($absFile);	// Make sure the title doesn't expose the absolute path!
    466. 

  466. 				}
    467. 

  467. 			break;
    468. 

  468. 			case 'sxi':
    469. 

  469. 			case 'sxc':
    470. 

  470. 			case 'sxw':
    471. 

  471. 			case 'ods':
    472. 

  472. 			case 'odp':
    473. 

  473. 			case 'odt':
    474. 

  474. 				if ($this->app['unzip'])	{
    475. 

  475. 						// Read content.xml:
    476. 

  476. 					$cmd = $this->app['unzip'] . ' -p ' . escapeshellarg($absFile) . ' content.xml';
    477. 

  477. 					exec($cmd,$res);
    478. 

  478. 					$content_xml = implode(LF,$res);
    479. 

  479. 					unset($res);
    480. 

  480. 

  481. 						// Read meta.xml:
    482. 

  482. 					$cmd = $this->app['unzip'] . ' -p ' . escapeshellarg($absFile) . ' meta.xml';
    483. 

  483. 					exec($cmd, $res);
    484. 

  484. 					$meta_xml = implode(LF,$res);
    485. 

  485. 					unset($res);
    486. 

  486. 

  487. 					$utf8_content = trim(strip_tags(str_replace('<',' <',$content_xml)));
    488. 

  488. 					$contentArr = $this->pObj->splitRegularContent($utf8_content);
    489. 

  489. 					$contentArr['title'] = basename($absFile);	// Make sure the title doesn't expose the absolute path!
    490. 

  490. 

  491. 						// Meta information
    492. 

  492. 					$metaContent = t3lib_div::xml2tree($meta_xml);
    493. 

  493. 					$metaContent = $metaContent['office:document-meta'][0]['ch']['office:meta'][0]['ch'];
    494. 

  494. 					if (is_array($metaContent))	{
    495. 

  495. 						$contentArr['title'] = $metaContent['dc:title'][0]['values'][0] ? $metaContent['dc:title'][0]['values'][0] : $contentArr['title'];
    496. 

  496. 						$contentArr['description'] = $metaContent['dc:subject'][0]['values'][0].' '.$metaContent['dc:description'][0]['values'][0];
    497. 

  497. 

  498. 							// Keywords collected:
    499. 

  499. 						if (is_array($metaContent['meta:keywords'][0]['ch']['meta:keyword']))	{
    500. 

  500. 							foreach ($metaContent['meta:keywords'][0]['ch']['meta:keyword'] as $kwDat)	{
    501. 

  501. 								$contentArr['keywords'].= $kwDat['values'][0].' ';
    502. 

  502. 							}
    503. 

  503. 						}
    504. 

  504. 					}
    505. 

  505. 				}
    506. 

  506. 			break;
    507. 

  507. 			case 'rtf':
    508. 

  508. 				if ($this->app['unrtf'])	{
    509. 

  509. 					$cmd = $this->app['unrtf'] . ' ' . escapeshellarg($absFile);
    510. 

  510. 					exec($cmd,$res);
    511. 

  511. 					$fileContent = implode(LF,$res);
    512. 

  512. 					unset($res);
    513. 

  513. 					$fileContent = $this->pObj->convertHTMLToUtf8($fileContent);
    514. 

  514. 					$contentArr = $this->pObj->splitHTMLContent($fileContent);
    515. 

  515. 				}
    516. 

  516. 			break;
    517. 

  517. 			case 'txt':
    518. 

  518. 			case 'csv':		// Raw text
    519. 

  519. 				$content = t3lib_div::getUrl($absFile);
    520. 

  520. 					// TODO: Auto-registration of charset???? -> utf-8 (Current assuming western europe...)
    521. 

  521. 				$content = $this->pObj->convertHTMLToUtf8($content, 'iso-8859-1');
    522. 

  522. 				$contentArr = $this->pObj->splitRegularContent($content);
    523. 

  523. 				$contentArr['title'] = basename($absFile);	// Make sure the title doesn't expose the absolute path!
    524. 

  524. 			break;
    525. 

  525. 			case 'html':
    526. 

  526. 			case 'htm':
    527. 

  527. 				$fileContent = t3lib_div::getUrl($absFile);
    528. 

  528. 				$fileContent = $this->pObj->convertHTMLToUtf8($fileContent);
    529. 

  529. 				$contentArr = $this->pObj->splitHTMLContent($fileContent);
    530. 

  530. 			break;
    531. 

  531. 			case 'xml':		// PHP strip-tags()
    532. 

  532. 				$fileContent = t3lib_div::getUrl($absFile);
    533. 

  533. 

  534. 					// Finding charset:
    535. 

  535. 				preg_match('/^[[:space:]]*<\?xml[^>]+encoding[[:space:]]*=[[:space:]]*["\'][[:space:]]*([[:alnum:]_-]+)[[:space:]]*["\']/i',substr($fileContent,0,200),$reg);
    536. 

  536. 				$charset = $reg[1] ? $this->pObj->csObj->parse_charset($reg[1]) : 'utf-8';
    537. 

  537. 

  538. 					// Converting content:
    539. 

  539. 				$fileContent = $this->pObj->convertHTMLToUtf8(strip_tags(str_replace('<',' <',$fileContent)), $charset);
    540. 

  540. 				$contentArr = $this->pObj->splitRegularContent($fileContent);
    541. 

  541. 				$contentArr['title'] = basename($absFile);	// Make sure the title doesn't expose the absolute path!
    542. 

  542. 			break;
    543. 

  543. 			case 'jpg':		// PHP EXIF
    544. 

  544. 			case 'jpeg':	// PHP EXIF
    545. 

  545. 			case 'tif':		// PHP EXIF
    546. 

  546. 				if (function_exists('exif_read_data'))	{
    547. 

  547. 					$exif = exif_read_data($absFile, 'IFD0');
    548. 

  548. 				} else {
    549. 

  549. 					$exif = FALSE;
    550. 

  550. 				}
    551. 

  551. 

  552. 				if ($exif)	{
    553. 

  553. 					$comment = trim($exif['COMMENT'][0].' '.$exif['ImageDescription']);	// The comments in JPEG files are utf-8, while in Tif files they are 7-bit ascii.
    554. 

  554. 				} else {
    555. 

  555. 					$comment = '';
    556. 

  556. 				}
    557. 

  557. 				$contentArr = $this->pObj->splitRegularContent($comment);
    558. 

  558. 				$contentArr['title'] = basename($absFile);	// Make sure the title doesn't expose the absolute path!
    559. 

  559. 			break;
    560. 

  560. 			default:
    561. 

  561. 				return false;
    562. 

  562. 			break;
    563. 

  563. 		}
    564. 

  564. 			// If no title (and why should there be...) then the file-name is set as title. This will raise the hits considerably if the search matches the document name.
    565. 

  565. 		if (is_array($contentArr) && !$contentArr['title'])	{
    566. 

  566. 			$contentArr['title'] = str_replace('_',' ',basename($absFile));	// Substituting "_" for " " because many filenames may have this instead of a space char.
    567. 

  567. 		}
    568. 

  568. 

  569. 		return $contentArr;
    570. 

  570. 	}
    571. 

  571. 

  572. 	/**
    573. 

  573. 	 * Creates an array with pointers to divisions of document.
    574. 

  574. 	 * ONLY for PDF files at this point. All other types will have an array with a single element with the value "0" (zero) coming back.
    575. 

  575. 	 *
    576. 

  576. 	 * @param	string		File extension
    577. 

  577. 	 * @param	string		Absolute filename (must exist and be validated OK before calling function)
    578. 

  578. 	 * @return	array		Array of pointers to sections that the document should be divided into
    579. 

  579. 	 */
    580. 

  580. 	function fileContentParts($ext,$absFile)	{
    581. 

  581. 		$cParts = array(0);
    582. 

  582. 		switch ($ext)	{
    583. 

  583. 			case 'pdf':
    584. 

  584. 					// Getting pdf-info:
    585. 

  585. 				$cmd = $this->app['pdfinfo'] . ' ' . escapeshellarg($absFile);
    586. 

  586. 				exec($cmd,$res);
    587. 

  587. 				$pdfInfo = $this->splitPdfInfo($res);
    588. 

  588. 				unset($res);
    589. 

  589. 

  590. 				if (intval($pdfInfo['pages']))	{
    591. 

  591. 					$cParts = array();
    592. 

  592. 

  593. 						// Calculate mode
    594. 

  594. 					if ($this->pdf_mode>0)	{
    595. 

  595. 						$iter = ceil($pdfInfo['pages']/$this->pdf_mode);
    596. 

  596. 					} else {
    597. 

  597. 						$iter = t3lib_div::intInRange(abs($this->pdf_mode),1,$pdfInfo['pages']);
    598. 

  598. 					}
    599. 

  599. 

  600. 						// Traverse and create intervals.
    601. 

  601. 					for ($a=0;$a<$iter;$a++)	{
    602. 

  602. 						$low = floor($a*($pdfInfo['pages']/$iter))+1;
    603. 

  603. 						$high = floor(($a+1)*($pdfInfo['pages']/$iter));
    604. 

  604. 						$cParts[] = $low.'-'.$high;
    605. 

  605. 					}
    606. 

  606. 				}
    607. 

  607. 			break;
    608. 

  608. 		}
    609. 

  609. 		return $cParts;
    610. 

  610. 	}
    611. 

  611. 

  612. 	/**
    613. 

  613. 	 * Analysing PDF info into a useable format.
    614. 

  614. 	 *
    615. 

  615. 	 * @param	array		Array of PDF content, coming from the pdfinfo tool
    616. 

  616. 	 * @return	array		Result array
    617. 

  617. 	 * @access private
    618. 

  618. 	 * @see fileContentParts()
    619. 

  619. 	 */
    620. 

  620. 	function splitPdfInfo($pdfInfoArray)	{
    621. 

  621. 		$res = array();
    622. 

  622. 		if (is_array($pdfInfoArray))	{
    623. 

  623. 			foreach($pdfInfoArray as $line)	{
    624. 

  624. 				$parts = explode(':',$line,2);
    625. 

  625. 				if (count($parts)>1 && trim($parts[0]))	{
    626. 

  626. 					$res[strtolower(trim($parts[0]))] = trim($parts[1]);
    627. 

  627. 				}
    628. 

  628. 			}
    629. 

  629. 		}
    630. 

  630. 		return $res;
    631. 

  631. 	}
    632. 

  632. 

  633. 	/**
    634. 

  634. 	 * Removes some strange char(12) characters and line breaks that then to occur in the end of the string from external files.
    635. 

  635. 	 *
    636. 

  636. 	 * @param	string		String to clean up
    637. 

  637. 	 * @return	string		String
    638. 

  638. 	 */
    639. 

  639. 	function removeEndJunk($string)	{
    640. 

  640. 		return trim(preg_replace('/['.LF.chr(12).']*$/','',$string));
    641. 

  641. 	}
    642. 

  642. 

  643. 

  644. 

  645. 

  646. 

  647. 

  648. 

  649. 

  650. 

  651. 

  652. 

  653. 

  654. 	/************************
    655. 

  655. 	 *
    656. 

  656. 	 * Backend analyzer
    657. 

  657. 	 *
    658. 

  658. 	 ************************/
    659. 

  659. 

  660. 	/**
    661. 

  661. 	 * Return icon for file extension
    662. 

  662. 	 *
    663. 

  663. 	 * @param	string		File extension, lowercase.
    664. 

  664. 	 * @return	string		Relative file reference, resolvable by t3lib_div::getFileAbsFileName()
    665. 

  665. 	 */
    666. 

  666. 	function getIcon($extension)	{
    667. 

  667. 		if ($extension=='htm')	$extension = 'html';
    668. 

  668. 		if ($extension=='jpeg')	$extension = 'jpg';
    669. 

  669. 		return 'EXT:indexed_search/pi/res/'.$extension.'.gif';
    670. 

  670. 	}
    671. 

  671. }
    672. 

  672. 

  673. if (defined('TYPO3_MODE') && $TYPO3_CONF_VARS[TYPO3_MODE]['XCLASS']['ext/indexed_search/class.external_parser.php'])    {
    674. 

  674. 	include_once($TYPO3_CONF_VARS[TYPO3_MODE]['XCLASS']['ext/indexed_search/class.external_parser.php']);
    675. 

  675. }
    676. 

  676. 

  677. ?>
    678.