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<?php
/**
* Lets the user import a CSV file to turn into wiki pages
*
* @author Yaron Koren
*/
class DTImportCSV extends SpecialPage {
/**
* Constructor
*/
public function __construct( $name='ImportCSV' ) {
parent::__construct( $name );
}
public function doesWrites() {
return true;
}
function execute( $query ) {
$this->setHeaders();
if ( ! $this->getUser()->isAllowed( 'datatransferimport' ) ) {
throw new PermissionsError( 'datatransferimport' );
}
if ( $this->getRequest()->getCheck( 'import_file' ) ) {
$text = $this->importFromUploadAndModifyPages();
} else {
$text = $this->printForm();
}
$this->getOutput()->addModuleStyles( 'ext.datatransfer');
$this->getOutput()->addHTML( $text );
}
protected function importFromUploadAndModifyPages () {
$text = DTUtils::printImportingMessage();
$uploadResult = ImportStreamSource::newFromUpload( "file_name" );
if ( !$uploadResult->isOK() ) {
$uploadError = $this->getOutput()->parse( $uploadResult->getWikiText() );
$text .= $uploadError;
return $text;
}
$source = $uploadResult->value;
$encoding = $this->getRequest()->getVal( 'encoding' );
$pages = array();
$error_msg = $this->importFromFile( $source->mHandle, $encoding, $pages );
if ( ! is_null( $error_msg ) ) {
$text .= $error_msg;
return $text;
}
$importSummary = $this->getRequest()->getVal( 'import_summary' );
$forPagesThatExist = $this->getRequest()->getVal( 'pagesThatExist' );
$text .= self::modifyPages( $pages, $importSummary, $forPagesThatExist );
return $text;
}
protected function printForm() {
$formText = DTUtils::printFileSelector( $this->getFiletype() );
$utf8OptionText = "\t" . Xml::element( 'option',
array(
'selected' => 'selected',
'value' => 'utf8'
), 'UTF-8' ) . "\n";
$utf16OptionText = "\t" . Xml::element( 'option',
array(
'value' => 'utf16'
), 'UTF-16' ) . "\n";
$encodingSelectText = Xml::tags( 'select',
array( 'name' => 'encoding' ),
"\n" . $utf8OptionText . $utf16OptionText. "\t" ) . "\n\t";
$formText .= "\t" . Xml::tags( 'p', null, $this->msg( 'dt_import_encodingtype', 'CSV' )->text() . " " . $encodingSelectText ) . "\n";
$formText .= "\t" . '<hr style="margin: 10px 0 10px 0" />' . "\n";
$formText .= DTUtils::printExistingPagesHandling();
$formText .= DTUtils::printImportSummaryInput( $this->getFiletype() );
$formText .= DTUtils::printSubmitButton();
$text = "\t" . Xml::tags( 'form',
array(
'enctype' => 'multipart/form-data',
'action' => '',
'method' => 'post'
), $formText ) . "\n";
return $text;
}
protected function importFromFile( $csv_file, $encoding, &$pages ) {
if ( is_null( $csv_file ) ) {
return wfMessage( 'emptyfile' )->text();
}
$table = array();
if ( $encoding == 'utf16' ) {
// Change encoding to UTF-8.
// Starting with PHP 5.3 we could use str_getcsv(),
// which would save the tempfile hassle.
$tempfile = tmpfile();
$csv_string = '';
while ( !feof( $csv_file ) ) {
$csv_string .= fgets( $csv_file, 65535 );
}
fwrite( $tempfile, iconv( 'UTF-16', 'UTF-8', $csv_string ) );
fseek( $tempfile, 0 );
while ( $line = fgetcsv( $tempfile ) ) {
array_push( $table, $line );
}
fclose( $tempfile );
} else {
while ( $line = fgetcsv( $csv_file ) ) {
// Convert from UTF-8 to ASCII - htmlentities()
// fails for UTF-8 if there are non-ASCII
// characters.
// $convertedLine = array();
// foreach ( $line as $value ) {
// $convertedLine[] = mb_convert_encoding( $value, 'UTF-8', 'ASCII' );
// }
array_push( $table, $line );
}
}
fclose( $csv_file );
// Get rid of the "byte order mark", if it's there - this is
// a three-character string sometimes put at the beginning
// of files to indicate its encoding.
// Code copied from:
// http://www.dotvoid.com/2010/04/detecting-utf-bom-byte-order-mark/
$byteOrderMark = pack( "CCC", 0xef, 0xbb, 0xbf );
if ( 0 == strncmp( $table[0][0], $byteOrderMark, 3 ) ) {
$table[0][0] = substr( $table[0][0], 3 );
// If there were quotation marks around this value,
// they didn't get removed, so remove them now.
$table[0][0] = trim( $table[0][0], '"' );
}
return $this->importFromArray( $table, $pages );
}
protected function importFromArray( $table, &$pages ) {
// Check header line to make sure every term is in the
// correct format.
$titleLabels = array( wfMessage( 'dt_xml_title' )->inContentLanguage()->text() );
$freeTextLabels = array( wfMessage( 'dt_xml_freetext' )->inContentLanguage()->text() );
// Add the English-language values as well, if this isn't an
// English-language wiki.
if ( $this->getLanguage()->getCode() !== 'en' ) {
$titleLabels[] = wfMessage( 'dt_xml_title' )->inLanguage( 'en' )->text();
$freeTextLabels[] = wfMessage( 'dt_xml_freetext' )->inLanguage( 'en' )->text();
}
foreach ( $table[0] as $i => $headerVal ) {
if ( !in_array( $headerVal, $titleLabels )
&& !in_array( $headerVal, $freeTextLabels )
&& $headerVal !== ''
&& !preg_match( '/^[^\[\]]+\[[^\[\]]+]$/', $headerVal ) ) {
$errorMsg = wfMessage( 'dt_importcsv_badheader', $i, $headerVal, $titleLabels[0], $freeTextLabels[0] )->text();
return $errorMsg;
}
}
foreach ( $table as $i => $line ) {
if ( $i == 0 ) continue;
$page = new DTPage();
foreach ( $line as $j => $val ) {
if ( $table[0][$j] === '' ) {
continue;
}
if ( in_array( $table[0][$j], $titleLabels ) ) {
$page->setName( $val );
} elseif ( in_array( $table[0][$j], $freeTextLabels ) ) {
$page->setFreeText( $val );
} else {
list( $templateName, $fieldName ) = explode( '[', str_replace( ']', '', $table[0][$j] ) );
$page->addTemplateField( $templateName, $fieldName, $val );
}
}
$pages[] = $page;
}
return null;
}
protected function modifyPages( $pages, $editSummary, $forPagesThatExist ) {
$text = "";
$jobs = array();
$jobParams = array();
$jobParams['user_id'] = $this->getUser()->getId();
$jobParams['edit_summary'] = $editSummary;
$jobParams['for_pages_that_exist'] = $forPagesThatExist;
foreach ( $pages as $page ) {
$title = Title::newFromText( $page->getName() );
if ( is_null( $title ) ) {
$text .= '<p>' . $this->msg( 'img-auth-badtitle', $page->getName() )->text() . "</p>\n";
continue;
}
$jobParams['text'] = $page->createText();
$jobs[] = new DTImportJob( $title, $jobParams );
}
JobQueueGroup::singleton()->push( $jobs );
$text .= $this->msg( 'dt_import_success' )->numParams( count( $jobs ) )->params( $this->getFiletype() )->parseAsBlock();
return $text;
}
protected function getFiletype() {
return wfMessage( 'dt_filetype_csv' )->text();
}
}
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