1 files changed, 102 insertions, 0 deletions
diff --git a/www/wiki/includes/export/DumpPipeOutput.php b/www/wiki/includes/export/DumpPipeOutput.php
new file mode 100644
index 00000000..ce899ed3
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+++ b/www/wiki/includes/export/DumpPipeOutput.php
@@ -0,0 +1,102 @@
+<?php
+/**
+ * Stream outputter to send data to a file via some filter program.
+ * Even if compression is available in a library, using a separate
+ * program can allow us to make use of a multi-processor system.
+ *
+ * Copyright © 2003, 2005, 2006 Brion Vibber <brion@pobox.com>
+ * https://www.mediawiki.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
+/**
+ * @ingroup Dump
+ */
+class DumpPipeOutput extends DumpFileOutput {
+	protected $command, $filename;
+	protected $procOpenResource = false;
+
+	/**
+	 * @param string $command
+	 * @param string $file
+	 */
+	function __construct( $command, $file = null ) {
+		if ( !is_null( $file ) ) {
+			$command .= " > " . wfEscapeShellArg( $file );
+		}
+
+		$this->startCommand( $command );
+		$this->command = $command;
+		$this->filename = $file;
+	}
+
+	/**
+	 * @param string $string
+	 */
+	function writeCloseStream( $string ) {
+		parent::writeCloseStream( $string );
+		if ( $this->procOpenResource ) {
+			proc_close( $this->procOpenResource );
+			$this->procOpenResource = false;
+		}
+	}
+
+	/**
+	 * @param string $command
+	 */
+	function startCommand( $command ) {
+		$spec = [
+			0 => [ "pipe", "r" ],
+		];
+		$pipes = [];
+		$this->procOpenResource = proc_open( $command, $spec, $pipes );
+		$this->handle = $pipes[0];
+	}
+
+	/**
+	 * @param string $newname
+	 */
+	function closeRenameAndReopen( $newname ) {
+		$this->closeAndRename( $newname, true );
+	}
+
+	/**
+	 * @param string $newname
+	 * @param bool $open
+	 */
+	function closeAndRename( $newname, $open = false ) {
+		$newname = $this->checkRenameArgCount( $newname );
+		if ( $newname ) {
+			if ( $this->handle ) {
+				fclose( $this->handle );
+				$this->handle = false;
+			}
+			if ( $this->procOpenResource ) {
+				proc_close( $this->procOpenResource );
+				$this->procOpenResource = false;
+			}
+			$this->renameOrException( $newname );
+			if ( $open ) {
+				$command = $this->command;
+				$command .= " > " . wfEscapeShellArg( $this->filename );
+				$this->startCommand( $command );
+			}
+		}
+	}
+}