Add file mime type

apps/workflowengine/css/admin.css

@@ -46,3 +46,7 @@
 	margin-right: 5px;
 }
 
+.workflowengine .invalid-input {
+	border-color: #aa0000;
+}
+

apps/workflowengine/js/admin.js

@@ -296,7 +296,7 @@
 
 					_.each(OCA.WorkflowEngine.availablePlugins, function(plugin) {
 						if (_.isFunction(plugin.render)) {
-							plugin.render(valueElement, check['class'], check['value']);
+							plugin.render(valueElement, check);
 						}
 					});
 				}, this);

apps/workflowengine/js/filemimetypeplugin.js

@@ -0,0 +1,72 @@
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <[email protected]>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+(function() {
+
+	OCA.WorkflowEngine = OCA.WorkflowEngine || {};
+	OCA.WorkflowEngine.Plugins = OCA.WorkflowEngine.Plugins || {};
+
+	OCA.WorkflowEngine.Plugins.FileMimeTypePlugin = {
+		getCheck: function() {
+			return {
+				'class': 'OCA\\WorkflowEngine\\Check\\FileMimeType',
+				'name': t('workflowengine', 'File mime type (upload)'),
+				'operators': [
+					{'operator': 'is', 'name': t('workflowengine', 'is')},
+					{'operator': '!is', 'name': t('workflowengine', 'is not')},
+					{'operator': 'matches', 'name': t('workflowengine', 'matches')},
+					{'operator': '!matches', 'name': t('workflowengine', 'does not match')}
+				]
+			};
+		},
+		render: function(element, check) {
+			if (check['class'] !== 'OCA\\WorkflowEngine\\Check\\FileMimeType') {
+				return;
+			}
+
+			var placeholder = t('workflowengine', 'text/plain');
+			if (check['operator'] === 'matches' || check['operator'] === '!matches') {
+				placeholder = t('workflowengine', '/^text\\/(plain|html)$/i');
+
+				if (this._validateRegex(check['value'])) {
+					$(element).removeClass('invalid-input');
+				} else {
+					$(element).addClass('invalid-input');
+				}
+			}
+
+			$(element).css('width', '250px')
+				.attr('placeholder', placeholder)
+				.attr('title', t('workflowengine', 'Example: {placeholder}', {placeholder: placeholder}))
+				.addClass('has-tooltip')
+				.tooltip({
+					placement: 'bottom'
+				});
+		},
+
+		_validateRegex: function(string) {
+			var regexRegex = /^\/(.*)\/([gui]{0,3})$/,
+				result = regexRegex.exec(string);
+			return result !== null;
+		}
+	};
+})();
+
+OC.Plugins.register('OCA.WorkflowEngine.CheckPlugins', OCA.WorkflowEngine.Plugins.FileMimeTypePlugin);

apps/workflowengine/js/filesizeplugin.js

@@ -27,7 +27,7 @@
 		getCheck: function() {
 			return {
 				'class': 'OCA\\WorkflowEngine\\Check\\FileSize',
-				'name': t('workflowengine', 'File size'),
+				'name': t('workflowengine', 'File size (upload)'),
 				'operators': [
 					{'operator': 'less', 'name': t('workflowengine', 'less')},
 					{'operator': '!greater', 'name': t('workflowengine', 'less or equals')},
@@ -36,14 +36,19 @@
 				]
 			};
 		},
-		render: function(element, classname, value) {
-			if (classname !== 'OCA\\WorkflowEngine\\Check\\FileSize') {
+		render: function(element, check) {
+			if (check['class'] !== 'OCA\\WorkflowEngine\\Check\\FileSize') {
 				return;
 			}
 
+			var placeholder = '12 MB'; // Do not translate!!!
 			$(element).css('width', '250px')
-				.attr('placeholder', t('workflowengine', '12 MB'))
-			;
+				.attr('placeholder', placeholder)
+				.attr('title', t('workflowengine', 'Example: {placeholder}', {placeholder: placeholder}))
+				.addClass('has-tooltip')
+				.tooltip({
+					placement: 'bottom'
+				});
 		}
 	};
 })();

apps/workflowengine/js/filesystemtagsplugin.js

@@ -41,8 +41,8 @@
 				]
 			};
 		},
-		render: function(element, classname, value) {
-			if (classname !== 'OCA\\WorkflowEngine\\Check\\FileSystemTags') {
+		render: function(element, check) {
+			if (check['class'] !== 'OCA\\WorkflowEngine\\Check\\FileSystemTags') {
 				return;
 			}
 

apps/workflowengine/js/usergroupmembershipplugin.js

@@ -34,8 +34,8 @@
 				]
 			};
 		},
-		render: function(element, classname, value) {
-			if (classname !== 'OCA\\WorkflowEngine\\Check\\UserGroupMembership') {
+		render: function(element, check) {
+			if (check['class'] !== 'OCA\\WorkflowEngine\\Check\\UserGroupMembership') {
 				return;
 			}
 

apps/workflowengine/lib/AppInfo/Application.php

@@ -55,6 +55,7 @@ function() {
 					'admin',
 
 					// Check plugins
+					'filemimetypeplugin',
 					'filesizeplugin',
 					'filesystemtagsplugin',
 					'usergroupmembershipplugin',

apps/workflowengine/lib/Check/AbstractStringCheck.php

@@ -0,0 +1,110 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <[email protected]>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\WorkflowEngine\Check;
+
+
+use OCP\Files\Storage\IStorage;
+use OCP\WorkflowEngine\ICheck;
+
+abstract class AbstractStringCheck implements ICheck {
+
+	/** @var array[] Nested array: [Pattern => [ActualValue => Regex Result]] */
+	protected $matches;
+
+	/**
+	 * @param IStorage $storage
+	 * @param string $path
+	 */
+	public function setFileInfo(IStorage $storage, $path) {
+		// Nothing changes here with a different path
+	}
+
+	/**
+	 * @return string
+	 */
+	abstract protected function getActualValue();
+
+	/**
+	 * @param string $operator
+	 * @param string $value
+	 * @return bool
+	 */
+	public function executeCheck($operator, $value)  {
+		$actualValue = $this->getActualValue();
+		return $this->executeStringCheck($operator, $value, $actualValue);
+	}
+
+	/**
+	 * @param string $operator
+	 * @param string $checkValue
+	 * @param string $actualValue
+	 * @return bool
+	 */
+	protected function executeStringCheck($operator, $checkValue, $actualValue) {
+		if ($operator === 'is') {
+			return $checkValue === $actualValue;
+		} else if ($operator === '!is') {
+			return $checkValue !== $actualValue;
+		} else {
+			$match = $this->match($checkValue, $actualValue);
+			if ($operator === 'matches') {
+				return $match === 1;
+			} else {
+				return $match === 0;
+			}
+		}
+	}
+
+	/**
+	 * @param string $operator
+	 * @param string $value
+	 * @throws \UnexpectedValueException
+	 */
+	public function validateCheck($operator, $value) {
+		if (!in_array($operator, ['is', '!is', 'matches', '!matches'])) {
+			throw new \UnexpectedValueException('Invalid operator', 1);
+		}
+
+		if (in_array($operator, ['matches', '!matches']) &&
+			  @preg_match($value, null) === false) {
+			throw new \UnexpectedValueException('Invalid regex', 2);
+		}
+	}
+
+	/**
+	 * @param string $pattern
+	 * @param string $subject
+	 * @return int|bool
+	 */
+	protected function match($pattern, $subject) {
+		$patternHash = md5($pattern);
+		$subjectHash = md5($subject);
+		if (isset($this->matches[$patternHash][$subjectHash])) {
+			return $this->matches[$patternHash][$subjectHash];
+		}
+		if (!isset($this->matches[$patternHash])) {
+			$this->matches[$patternHash] = [];
+		}
+		$this->matches[$patternHash][$subjectHash] = preg_match($pattern, $subject);
+		return $this->matches[$patternHash][$subjectHash];
+	}
+}

apps/workflowengine/lib/Check/FileMimeType.php

@@ -0,0 +1,82 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <[email protected]>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\WorkflowEngine\Check;
+
+
+use OCP\Files\IMimeTypeDetector;
+use OCP\IRequest;
+
+class FileMimeType extends AbstractStringCheck {
+
+	/** @var string */
+	protected $mimeType;
+
+	/** @var IRequest */
+	protected $request;
+
+	/** @var IMimeTypeDetector */
+	protected $mimeTypeDetector;
+
+	/**
+	 * @param IRequest $request
+	 * @param IMimeTypeDetector $mimeTypeDetector
+	 */
+	public function __construct(IRequest $request, IMimeTypeDetector $mimeTypeDetector) {
+		$this->request = $request;
+		$this->mimeTypeDetector = $mimeTypeDetector;
+	}
+
+	/**
+	 * @return string
+	 */
+	protected function getActualValue() {
+		if ($this->mimeType !== null) {
+			return $this->mimeType;
+		}
+
+		$this->mimeType = '';
+		if ($this->isWebDAVRequest()) {
+			if ($this->request->getMethod() === 'PUT') {
+				$path = $this->request->getPathInfo();
+				$this->mimeType = $this->mimeTypeDetector->detectPath($path);
+			}
+		} else if (in_array($this->request->getMethod(), ['POST', 'PUT'])) {
+			$files = $this->request->getUploadedFile('files');
+			if (isset($files['type'][0])) {
+				$this->mimeType = $files['type'][0];
+			}
+		}
+		return $this->mimeType;
+	}
+
+	/**
+	 * @return bool
+	 */
+	protected function isWebDAVRequest() {
+		return substr($this->request->getScriptName(), 0 - strlen('/remote.php')) === '/remote.php' && (
+			$this->request->getPathInfo() === '/webdav' ||
+			strpos($this->request->getPathInfo(), '/webdav/') === 0 ||
+			$this->request->getPathInfo() === '/dav/files' ||
+			strpos($this->request->getPathInfo(), '/dav/files/') === 0
+		);
+	}
+}