1 files changed, 106 insertions, 0 deletions
diff --git a/www/wiki/includes/libs/filebackend/fileop/MoveFileOp.php b/www/wiki/includes/libs/filebackend/fileop/MoveFileOp.php
new file mode 100644
index 00000000..55dca516
--- /dev/null
+++ b/www/wiki/includes/libs/filebackend/fileop/MoveFileOp.php
@@ -0,0 +1,106 @@
+<?php
+/**
+ * Helper class for representing operations with transaction support.
+ *
+ * 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 FileBackend
+ */
+
+/**
+ * Move a file from one storage path to another in the backend.
+ * Parameters for this operation are outlined in FileBackend::doOperations().
+ */
+class MoveFileOp extends FileOp {
+	protected function allowedParams() {
+		return [
+			[ 'src', 'dst' ],
+			[ 'overwrite', 'overwriteSame', 'ignoreMissingSource', 'headers' ],
+			[ 'src', 'dst' ]
+		];
+	}
+
+	protected function doPrecheck( array &$predicates ) {
+		$status = StatusValue::newGood();
+		// Check if the source file exists
+		if ( !$this->fileExists( $this->params['src'], $predicates ) ) {
+			if ( $this->getParam( 'ignoreMissingSource' ) ) {
+				$this->doOperation = false; // no-op
+				// Update file existence predicates (cache 404s)
+				$predicates['exists'][$this->params['src']] = false;
+				$predicates['sha1'][$this->params['src']] = false;
+
+				return $status; // nothing to do
+			} else {
+				$status->fatal( 'backend-fail-notexists', $this->params['src'] );
+
+				return $status;
+			}
+			// Check if a file can be placed/changed at the destination
+		} elseif ( !$this->backend->isPathUsableInternal( $this->params['dst'] ) ) {
+			$status->fatal( 'backend-fail-usable', $this->params['dst'] );
+			$status->fatal( 'backend-fail-move', $this->params['src'], $this->params['dst'] );
+
+			return $status;
+		}
+		// Check if destination file exists
+		$status->merge( $this->precheckDestExistence( $predicates ) );
+		$this->params['dstExists'] = $this->destExists; // see FileBackendStore::setFileCache()
+		if ( $status->isOK() ) {
+			// Update file existence predicates
+			$predicates['exists'][$this->params['src']] = false;
+			$predicates['sha1'][$this->params['src']] = false;
+			$predicates['exists'][$this->params['dst']] = true;
+			$predicates['sha1'][$this->params['dst']] = $this->sourceSha1;
+		}
+
+		return $status; // safe to call attempt()
+	}
+
+	protected function doAttempt() {
+		if ( $this->overwriteSameCase ) {
+			if ( $this->params['src'] === $this->params['dst'] ) {
+				// Do nothing to the destination (which is also the source)
+				$status = StatusValue::newGood();
+			} else {
+				// Just delete the source as the destination file needs no changes
+				$status = $this->backend->deleteInternal( $this->setFlags(
+					[ 'src' => $this->params['src'] ]
+				) );
+			}
+		} elseif ( $this->params['src'] === $this->params['dst'] ) {
+			// Just update the destination file headers
+			$headers = $this->getParam( 'headers' ) ?: [];
+			$status = $this->backend->describeInternal( $this->setFlags(
+				[ 'src' => $this->params['dst'], 'headers' => $headers ]
+			) );
+		} else {
+			// Move the file to the destination
+			$status = $this->backend->moveInternal( $this->setFlags( $this->params ) );
+		}
+
+		return $status;
+	}
+
+	public function storagePathsRead() {
+		return [ $this->params['src'] ];
+	}
+
+	public function storagePathsChanged() {
+		return [ $this->params['src'], $this->params['dst'] ];
+	}
+}