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<?php
/**
* @version $Header$
*
* @author xing <xing@synapse.plus.com>
* @version $Revision$
* created Thursday May 08, 2008
* @package liberty
* @subpackage liberty_mime_handler
**/
/**
* setup
*/
global $gLibertySystem;
/**
* This is the name of the plugin - max char length is 16
* As a naming convention, the liberty mime handler definition should start with:
* PLUGIN_MIME_GUID_
*/
define( 'PLUGIN_MIME_GUID_PDF', 'mimepdf' );
$pluginParams = array (
// Set of functions and what they are called in this paricular plugin
// Use the GUID as your namespace
'verify_function' => 'mime_default_verify',
'store_function' => 'mime_pdf_store',
'update_function' => 'mime_pdf_update',
'load_function' => 'mime_pdf_load',
'download_function' => 'mime_default_download',
'expunge_function' => 'mime_default_expunge',
//'help_function' => 'mime_pdf_help',
// Brief description of what the plugin does
'title' => 'Browsable PDFs',
'description' => 'Convert PDFs to flash files that can be browsed online.',
// Templates to display the files
'view_tpl' => 'bitpackage:liberty/mime/pdf/view.tpl',
//'attachment_tpl' => 'bitpackage:liberty/mime/image/attachment.tpl',
// url to page with options for this plugin
'plugin_settings_url' => LIBERTY_PKG_URL.'admin/plugins/mime_pdf.php',
// This should be the same for all mime plugins
'plugin_type' => MIME_PLUGIN,
// Set this to TRUE if you want the plugin active right after installation
'auto_activate' => FALSE,
// Help page on bitweaver.org
//'help_page' => 'LibertyMime+Image+Plugin',
// this should pick up all image
'mimetypes' => array(
'#.*/pdf#i',
),
);
$gLibertySystem->registerPlugin( PLUGIN_MIME_GUID_PDF, $pluginParams );
/**
* Store the data in the database
*
* @param array $pStoreRow File data needed to store details in the database - sanitised and generated in the verify function
* @access public
* @return TRUE on success, FALSE on failure - $pStoreRow[errors] will contain reason
*/
function mime_pdf_store( &$pStoreRow ) {
// this will set the correct pluign guid, even if we let default handle the store process
$pStoreRow['attachment_plugin_guid'] = PLUGIN_MIME_GUID_PDF;
$pStoreRow['log'] = array();
// if storing works, we process the image
if( $ret = mime_default_store( $pStoreRow )) {
if( !mime_pdf_convert_pdf2swf( $pStoreRow )) {
// if it all goes tits up, we'll know why
$pStoreRow['errors'] = $pStoreRow['log'];
$ret = FALSE;
}
}
return $ret;
}
/**
* mime_pdf_update update file information in the database if there were changes.
*
* @param array $pStoreRow File data needed to update details in the database
* @access public
* @return TRUE on success, FALSE on failure - $pStoreRow[errors] will contain reason
*/
function mime_pdf_update( &$pStoreRow, $pParams = NULL ) {
global $gThumbSizes, $gBitSystem;
$ret = TRUE;
// this will set the correct pluign guid, even if we let default handle the store process
$pStoreRow['attachment_plugin_guid'] = PLUGIN_MIME_GUID_PDF;
// if storing works, we process the image
if( !empty( $pStoreRow['upload'] ) && $ret = mime_default_update( $pStoreRow )) {
}
return $ret;
}
/**
* Load file data from the database
*
* @param array $pFileHash Contains all file information
* @param array $pPrefs Attachment preferences taken liberty_attachment_prefs
* @param array $pParams Parameters for loading the plugin - e.g.: might contain values such as thumbnail size from the view page
* @access public
* @return TRUE on success, FALSE on failure - $pStoreRow[errors] will contain reason
*/
function mime_pdf_load( &$pFileHash, &$pPrefs, $pParams = NULL ) {
global $gBitSystem;
// don't load a mime image if we don't have an image for this file
if( $ret = mime_default_load( $pFileHash, $pPrefs, $pParams )) {
if( !empty( $ret['source_file'] )) {
$source_path = dirname( $ret['source_file'] ).'/';
// if the swf file exists, we pass it back that it can be viewed.
if( is_file( $source_path.'pdf.swf' )) {
$ret['media_url'] = storage_path_to_url( dirname( $ret['source_url'] ).'/pdf.swf' );
}
}
}
return $ret;
}
/**
* mime_pdf_convert_pdf2swf Convert a PDF to a SWF video
*
* @param array $pFileHash file details.
* @param array $pFileHash[upload] should contain a complete hash from $_FILES
* @access public
* @return TRUE on success, FALSE on failure
*/
function mime_pdf_convert_pdf2swf( $pFileHash ) {
global $gBitSystem;
if( !empty( $pFileHash['upload'] ) && @BitBase::verifyId( $pFileHash['attachment_id'] )) {
// get file paths
$pdf2swf = trim( $gBitSystem->getConfig( 'swf2pdf_path', shell_exec( 'which pdf2swf' )));
$swfcombine = trim( $gBitSystem->getConfig( 'swfcombine_path', shell_exec( 'which swfcombine' )));
if( is_executable( $pdf2swf ) && is_executable( $swfcombine )) {
$source = STORAGE_PKG_PATH.$pFileHash['upload']['dest_branch'].$pFileHash['upload']['name'];
$destPath = dirname( $source );
$tmp_file = "$destPath/tmp.swf";
$swf_file = "$destPath/pdf.swf";
$pdfviewer = UTIL_PKG_PATH."javascript/pdfviewer/fdviewer.swf";
$swfloader = UTIL_PKG_PATH."javascript/pdfviewer/loader.swf";
$pdf2swfcommand = "$pdf2swf -s insertstop -s jpegquality=".$gBitSystem->getConfig( 'liberty_thumbnail_quality', 85 )." '$source' -o '$tmp_file'";
$combinecommand = "$swfcombine '$pdfviewer' loader='$swfloader' '#1'='$tmp_file' -o '$swf_file'";
shell_exec( $pdf2swfcommand );
if( is_file( $tmp_file ) && filesize( $tmp_file ) > 0 ) {
shell_exec( $combinecommand );
if( !is_file( $swf_file ) || filesize( $swf_file ) == 0 ) {
// combination went wrong. remove swf file
$pFileHash['log']['swfcombine'] = "There was a problem combining the PDF SWF with the viewer.";
@unlink( $swf_file );
}
} else {
$pFileHash['log']['pdf2swf'] = "There was a problem converting the PDF to SWF.";
}
// remove temp file
@unlink( $tmp_file );
}
}
return( empty( $pFileHash['log'] ));
}
/**
* mime_pdf_help
*
* @access public
* @return string
*/
function mime_pdf_help() {
return '';
}
?>
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