Peter M. Groen / knowledgetree

Commit f94449ba9b9acf65a1e8b442c9a31ee3c1652922

Authored by nbm
1 parent 83b27bbb

Work around Microsoft IE KB812935 issue with Cache-Control headers (used 

to prevent using cached versions) by setting Last-Modified and using
must-revalidate instead.

Submitted by:	freboulet
SF Tracker:	1179269
SF Tracker:	1165451


git-svn-id: https://kt-dms.svn.sourceforge.net/svnroot/kt-dms/trunk@3238 c91229c3-7414-0410-bfa2-8a42b809f60b
Inline Side-by-side
Showing 1 changed file with 52 additions and 48 deletions
lib/documentmanagement/PhysicalDocumentManager.inc
  View file @f94449b
... ... @@ -92,22 +92,24 @@ class PhysicalDocumentManager {
92 92 * @todo investigate possible problem in MSIE 5.5 concerning Content-Disposition header
93 93 */
94 94 function downloadPhysicalDocument($iDocumentID) {
95   - //get the document
96   - $oDocument = & Document::get($iDocumentID);
97   - //get the path to the document on the server
98   - $sDocumentFileSystemPath = $oDocument->getPath();
99   - if (file_exists($sDocumentFileSystemPath)) {
100   - //set the correct headers
101   - Header("Content-Type: " . PhysicalDocumentManager::getMimeTypeName($oDocument->getMimeTypeID()));
102   - Header("Content-Length: ". $oDocument->getFileSize());
103   - Header("Content-Disposition: attachment; filename=\"" . $oDocument->getFileName() . "\"");
104   - Header("Pragma: no-cache");
105   - Header("Cache-Control: no-cache");
106   - Header("Expires: 0");
107   - readfile($sDocumentFileSystemPath);
108   - } else {
  95 + //get the document
  96 + $oDocument = & Document::get($iDocumentID);
  97 + //get the path to the document on the server
  98 + $sDocumentFileSystemPath = $oDocument->getPath();
  99 + if (file_exists($sDocumentFileSystemPath)) {
  100 + //set the correct headers
  101 + header("Content-Type: application/octet-stream");
  102 + header("Content-Length: ". $oDocument->getFileSize());
  103 + header("Content-Disposition: attachment; filename=\"" . $oDocument->getFileName() . "\"");
  104 + header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
  105 + header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
  106 + header("Cache-Control: must-revalidate");
  107 + header("Content-Location: ".$oDocument->getFileName());
  108 +
  109 + readfile($sDocumentFileSystemPath);
  110 + } else {
109 111 return false;
110   - }
  112 + }
111 113 }
112 114  
113 115 /**
... ... @@ -118,24 +120,25 @@ class PhysicalDocumentManager {
118 120 * @return int number of bytes read from file on success or false otherwise;
119 121 */
120 122 function downloadVersionedPhysicalDocument($iDocumentID, $sVersion) {
121   - //get the document
122   - $oDocument = & Document::get($iDocumentID);
123   - //get the path to the document on the server
124   - $sDocumentFileSystemPath = $oDocument->getPath() . "-$sVersion";
125   - if (file_exists($sDocumentFileSystemPath)) {
126   - //set the correct headers
127   - Header("Content-Type: " . PhysicalDocumentManager::getMimeTypeName($oDocument->getMimeTypeID()));
128   - header("Content-Length: ". $oDocument->getFileSize());
129   - // prefix the filename presented to the browser to preserve the document extension
130   - header("Content-Disposition: attachment; filename=" . "$sVersion-" . $oDocument->getFileName());
131   - Header("Pragma: no-cache");
132   - Header("Cache-Control: no-cache");
133   - header("Expires: 0");
134   - readfile($sDocumentFileSystemPath);
135   - } else {
136   - return false;
  123 + //get the document
  124 + $oDocument = & Document::get($iDocumentID);
  125 + //get the path to the document on the server
  126 + $sDocumentFileSystemPath = $oDocument->getPath() . "-$sVersion";
  127 + if (file_exists($sDocumentFileSystemPath)) {
  128 + //set the correct headers
  129 + header("Content-Type: application/octet-stream");
  130 + header("Content-Length: ". $oDocument->getFileSize());
  131 + // prefix the filename presented to the browser to preserve the document extension
  132 + header('Content-Disposition: attachment; filename="' . "$sVersion-" . $oDocument->getFileName() . '"');
  133 + header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
  134 + header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
  135 + header("Cache-Control: must-revalidate");
  136 + header("Content-Location: ".$oDocument->getFileName());
  137 + readfile($sDocumentFileSystemPath);
  138 + } else {
  139 + return false;
  140 + }
137 141 }
138   - }
139 142  
140 143 /**
141 144 * Move a document to a new folder
... ... @@ -378,24 +381,25 @@ class PhysicalDocumentManager {
378 381 * @todo investigate possible problem in MSIE 5.5 concerning Content-Disposition header
379 382 */
380 383 function inlineViewPhysicalDocument($iDocumentID) {
381   - //get the document
382   - $oDocument = & Document::get($iDocumentID);
383   - //get the path to the document on the server
384   - $sDocumentFileSystemPath = $oDocument->getPath();
385   - if (file_exists($sDocumentFileSystemPath)) {
386   - Header("Content-Type: " . PhysicalDocumentManager::getMimeTypeName($oDocument->getMimeTypeID()));
387   - Header("Content-Length: " . $oDocument->getFileSize());
388   - Header("Content-Disposition: inline; filename=" . $oDocument->getFileName());
389   - Header("Pragma: no-cache");
390   - Header("Cache-Control: no-cache");
391   - return readfile($sDocumentFileSystemPath);
392   - } else {
393   - return false;
394   - }
  384 + //get the document
  385 + $oDocument = & Document::get($iDocumentID);
  386 + //get the path to the document on the server
  387 + $sDocumentFileSystemPath = $oDocument->getPath();
  388 + if (file_exists($sDocumentFileSystemPath)) {
  389 + header("Content-Type: application/octet-stream");
  390 + header("Content-Length: ". $oDocument->getFileSize());
  391 + // prefix the filename presented to the browser to preserve the document extension
  392 + header('Content-Disposition: inline; filename="' . $oDocument->getFileName() . '"');
  393 + header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
  394 + header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
  395 + header("Cache-Control: must-revalidate");
  396 + header("Content-Location: ".$oDocument->getFileName());
  397 + return readfile($sDocumentFileSystemPath);
  398 + } else {
  399 + return false;
  400 + }
395 401 }
396 402  
397   -
398   -
399 403 /**
400 404 * Get the uploaded file information and place it into a document object
401 405 *
... ...