Merge pull request #611 from nextcloud/add-more-checks

Add more checks

26 files changed, 2207 insertions, 33 deletions

diff --git a/apps/workflowengine/appinfo/routes.php b/apps/workflowengine/appinfo/routes.php
index b8c9ae1c236..5ae74bcafc3 100644
--- a/apps/workflowengine/appinfo/routes.php
+++ b/apps/workflowengine/appinfo/routes.php
@@ -25,5 +25,6 @@ return [
 		['name' => 'flowOperations#addOperation', 'url' => '/operations', 'verb' => 'POST'],
 		['name' => 'flowOperations#updateOperation', 'url' => '/operations/{id}', 'verb' => 'PUT'],
 		['name' => 'flowOperations#deleteOperation', 'url' => '/operations/{id}', 'verb' => 'DELETE'],
+		['name' => 'requestTime#getTimezones', 'url' => '/timezones', 'verb' => 'GET'],
 	]
 ];
diff --git a/apps/workflowengine/css/admin.css b/apps/workflowengine/css/admin.css
index 1d94fced003..70185615ad6 100644
--- a/apps/workflowengine/css/admin.css
+++ b/apps/workflowengine/css/admin.css
@@ -46,3 +46,7 @@
 	margin-right: 5px;
 }
 
+.workflowengine .invalid-input {
+	border-color: #aa0000;
+}
+
diff --git a/apps/workflowengine/js/admin.js b/apps/workflowengine/js/admin.js
index 48d1592b457..2c6fa54d87d 100644
--- a/apps/workflowengine/js/admin.js
+++ b/apps/workflowengine/js/admin.js
@@ -75,12 +75,6 @@
 		});
 
 	/**
-	 * @class OCA.WorkflowEngine.AvailableCheck
-	 */
-	OCA.WorkflowEngine.AvailableCheck =
-		OC.Backbone.Model.extend({});
-
-	/**
 	 *  .d8888b.           888 888                   888    d8b
 	 * d88P  Y88b          888 888                   888    Y8P
 	 * 888    888          888 888                   888
@@ -143,6 +137,7 @@
 				'change .check-operator': 'checkChanged',
 				'change .check-value': 'checkChanged',
 				'change .operation-name': 'operationChanged',
+				'change .operation-operation': 'operationChanged',
 				'click .button-reset': 'reset',
 				'click .button-save': 'save',
 				'click .button-add': 'add',
@@ -248,7 +243,7 @@
 				// model change will trigger render
 				this.model.set({'checks': checks});
 			},
-			deleteCheck: function() {
+			deleteCheck: function(event) {
 				console.log(arguments);
 				var id = $(event.target.parentElement).data('id'),
 					checks = JSON.parse(JSON.stringify(this.model.get('checks')));
@@ -275,7 +270,7 @@
 					return;
 				}
 
-				if (key !== 'name') {
+				if (key !== 'name' && key !== 'operation') {
 					console.warn('key "' + key + '" is no valid attribute');
 					return;
 				}
@@ -302,7 +297,7 @@
 
 					_.each(OCA.WorkflowEngine.availablePlugins, function(plugin) {
 						if (_.isFunction(plugin.render)) {
-							plugin.render(valueElement, check['class'], check['value']);
+							plugin.render(valueElement, check);
 						}
 					});
 				}, this);
@@ -315,6 +310,7 @@
 					this.message = '';
 				}
 
+				return this.$el;
 			}
 		});
 
@@ -331,16 +327,15 @@
 			events: {
 				'click .button-add-operation': 'add'
 			},
-			initialize: function() {
-				this._initialize('OCA\\WorkflowEngine\\Operation');
-			},
-			_initialize: function(classname) {
-				OCA.WorkflowEngine.availablePlugins = OC.Plugins.getPlugins('OCA.WorkflowEngine.CheckPlugins');
-				_.each(OCA.WorkflowEngine.availablePlugins, function(plugin) {
-					if (_.isFunction(plugin.getCheck)) {
-						OCA.WorkflowEngine.availableChecks.push(plugin.getCheck());
-					}
-				});
+			initialize: function(classname) {
+				if (!OCA.WorkflowEngine.availablePlugins.length) {
+					OCA.WorkflowEngine.availablePlugins = OC.Plugins.getPlugins('OCA.WorkflowEngine.CheckPlugins');
+					_.each(OCA.WorkflowEngine.availablePlugins, function(plugin) {
+						if (_.isFunction(plugin.getCheck)) {
+							OCA.WorkflowEngine.availableChecks.push(plugin.getCheck(classname));
+						}
+					});
+				}
 
 				this.collection.fetch({data: {
 					'class': classname
@@ -351,12 +346,8 @@
 				var operation = this.collection.create();
 				this.renderOperation(operation);
 			},
-			renderOperation: function(operation){
-				console.log(operation);
-				var subView = new OCA.WorkflowEngine.OperationView({
-						model: operation
-					}),
-					operationsElement = this.$el.find('.operations');
+			renderOperation: function(subView){
+				var operationsElement = this.$el.find('.operations');
 				operationsElement.append(subView.$el);
 				subView.render();
 			},
diff --git a/apps/workflowengine/js/filemimetypeplugin.js b/apps/workflowengine/js/filemimetypeplugin.js
new file mode 100644
index 00000000000..33cbbd7fd7e
--- /dev/null
+++ b/apps/workflowengine/js/filemimetypeplugin.js
@@ -0,0 +1,72 @@
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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);
diff --git a/apps/workflowengine/js/filesizeplugin.js b/apps/workflowengine/js/filesizeplugin.js
new file mode 100644
index 00000000000..0efa9d00edf
--- /dev/null
+++ b/apps/workflowengine/js/filesizeplugin.js
@@ -0,0 +1,56 @@
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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.FileSizePlugin = {
+		getCheck: function() {
+			return {
+				'class': 'OCA\\WorkflowEngine\\Check\\FileSize',
+				'name': t('workflowengine', 'File size (upload)'),
+				'operators': [
+					{'operator': 'less', 'name': t('workflowengine', 'less')},
+					{'operator': '!greater', 'name': t('workflowengine', 'less or equals')},
+					{'operator': '!less', 'name': t('workflowengine', 'greater or equals')},
+					{'operator': 'greater', 'name': t('workflowengine', 'greater')}
+				]
+			};
+		},
+		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', placeholder)
+				.attr('title', t('workflowengine', 'Example: {placeholder}', {placeholder: placeholder}))
+				.addClass('has-tooltip')
+				.tooltip({
+					placement: 'bottom'
+				});
+		}
+	};
+})();
+
+OC.Plugins.register('OCA.WorkflowEngine.CheckPlugins', OCA.WorkflowEngine.Plugins.FileSizePlugin);
diff --git a/apps/workflowengine/js/filesystemtagsplugin.js b/apps/workflowengine/js/filesystemtagsplugin.js
new file mode 100644
index 00000000000..dc6f608d85a
--- /dev/null
+++ b/apps/workflowengine/js/filesystemtagsplugin.js
@@ -0,0 +1,76 @@
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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.FileSystemTagsPlugin = {
+		getCheck: function() {
+			this.collection = OC.SystemTags.collection;
+
+			return {
+				'class': 'OCA\\WorkflowEngine\\Check\\FileSystemTags',
+				'name': t('workflowengine', 'File system tag'),
+				'operators': [
+					{'operator': 'is', 'name': t('workflowengine', 'is tagged with')},
+					{'operator': '!is', 'name': t('workflowengine', 'is not tagged with')}
+				]
+			};
+		},
+		render: function(element, check) {
+			if (check['class'] !== 'OCA\\WorkflowEngine\\Check\\FileSystemTags') {
+				return;
+			}
+
+			$(element).css('width', '400px');
+
+			$(element).select2({
+				allowClear: false,
+				multiple: false,
+				placeholder: t('workflowengine', 'Select tag…'),
+				query: _.debounce(function(query) {
+					query.callback({
+						results: OC.SystemTags.collection.filterByName(query.term)
+					});
+				}, 100, true),
+				id: function(element) {
+					return element.get('id');
+				},
+				initSelection: function(element, callback) {
+					callback($(element).val());
+				},
+				formatResult: function (tag) {
+					return OC.SystemTags.getDescriptiveTag(tag);
+				},
+				formatSelection: function (tagId) {
+					var tag = OC.SystemTags.collection.get(tagId);
+					return OC.SystemTags.getDescriptiveTag(tag);
+				},
+				escapeMarkup: function(m) {
+					return m;
+				}
+			});
+		}
+	};
+})();
+
+OC.Plugins.register('OCA.WorkflowEngine.CheckPlugins', OCA.WorkflowEngine.Plugins.FileSystemTagsPlugin);
diff --git a/apps/workflowengine/js/requestremoteaddressplugin.js b/apps/workflowengine/js/requestremoteaddressplugin.js
new file mode 100644
index 00000000000..a66d6f51f0f
--- /dev/null
+++ b/apps/workflowengine/js/requestremoteaddressplugin.js
@@ -0,0 +1,83 @@
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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.RequestRemoteAddressPlugin = {
+		getCheck: function() {
+			return {
+				'class': 'OCA\\WorkflowEngine\\Check\\RequestRemoteAddress',
+				'name': t('workflowengine', 'Request remote address'),
+				'operators': [
+					{'operator': 'matchesIPv4', 'name': t('workflowengine', 'matches IPv4')},
+					{'operator': '!matchesIPv4', 'name': t('workflowengine', 'does not match IPv4')},
+					{'operator': 'matchesIPv6', 'name': t('workflowengine', 'matches IPv6')},
+					{'operator': '!matchesIPv6', 'name': t('workflowengine', 'does not match IPv6')}
+				]
+			};
+		},
+		render: function(element, check) {
+			if (check['class'] !== 'OCA\\WorkflowEngine\\Check\\RequestRemoteAddress') {
+				return;
+			}
+
+			var placeholder = '127.0.0.1/32'; // Do not translate!!!
+			if (check['operator'] === 'matchesIPv6' || check['operator'] === '!matchesIPv6') {
+				placeholder = '::1/128'; // Do not translate!!!
+				if (this._validateIPv6(check['value'])) {
+					$(element).removeClass('invalid-input');
+				} else {
+					$(element).addClass('invalid-input');
+				}
+			} else {
+				if (this._validateIPv4(check['value'])) {
+					$(element).removeClass('invalid-input');
+				} else {
+					$(element).addClass('invalid-input');
+				}
+			}
+
+			$(element).css('width', '300px')
+				.attr('placeholder', placeholder)
+				.attr('title', t('workflowengine', 'Example: {placeholder}', {placeholder: placeholder}))
+				.addClass('has-tooltip')
+				.tooltip({
+					placement: 'bottom'
+				});
+		},
+
+		_validateIPv4: function(string) {
+			var regexRegex = /^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\/(3[0-2]|[1-2][0-9]|[1-9])$/,
+				result = regexRegex.exec(string);
+			return result !== null;
+		},
+
+		_validateIPv6: function(string) {
+			var regexRegex = /^(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))\/(1([01][0-9]|2[0-8])|[1-9][0-9]|[0-9])$/,
+				result = regexRegex.exec(string);
+			return result !== null;
+		}
+	};
+})();
+
+OC.Plugins.register('OCA.WorkflowEngine.CheckPlugins', OCA.WorkflowEngine.Plugins.RequestRemoteAddressPlugin);
diff --git a/apps/workflowengine/js/requesttimeplugin.js b/apps/workflowengine/js/requesttimeplugin.js
new file mode 100644
index 00000000000..111b2bb7437
--- /dev/null
+++ b/apps/workflowengine/js/requesttimeplugin.js
@@ -0,0 +1,196 @@
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+(function() {
+
+	OCA.WorkflowEngine = OCA.WorkflowEngine || {};
+	OCA.WorkflowEngine.Plugins = OCA.WorkflowEngine.Plugins || {};
+
+	OCA.WorkflowEngine.Plugins.RequestTimePlugin = {
+		timezones: [
+			"Europe/Berlin",
+			"Europe/London"
+		],
+		_$element: null,
+		getCheck: function() {
+			return {
+				'class': 'OCA\\WorkflowEngine\\Check\\RequestTime',
+				'name': t('workflowengine', 'Request time'),
+				'operators': [
+					{'operator': 'in', 'name': t('workflowengine', 'between')},
+					{'operator': '!in', 'name': t('workflowengine', 'not between')}
+				]
+			};
+		},
+		render: function(element, check) {
+			if (check['class'] !== 'OCA\\WorkflowEngine\\Check\\RequestTime') {
+				return;
+			}
+
+			var startTime = '09:00',
+				endTime = '18:00',
+				timezone = jstz.determine().name(),
+				$element = $(element);
+
+			if (_.isString(check['value']) && check['value'] !== '') {
+				var value = JSON.parse(check['value']),
+					splittedStart = value[0].split(' ', 2),
+					splittedEnd = value[1].split(' ', 2);
+
+				startTime = splittedStart[0];
+				endTime = splittedEnd[0];
+				timezone = splittedStart[1];
+			}
+
+			var valueJSON = JSON.stringify([startTime + ' ' + timezone, endTime + ' ' + timezone]);
+			if (check['value'] !== valueJSON) {
+				check['value'] = valueJSON;
+				$element.val(valueJSON);
+			}
+
+			$element.css('display', 'none');
+
+			$('<input>')
+				.attr('type', 'text')
+				.attr('placeholder', t('workflowengine', 'Start'))
+				.attr('title', t('workflowengine', 'Example: {placeholder}', {placeholder: '16:00'}))
+				.addClass('has-tooltip')
+				.tooltip({
+					placement: 'bottom'
+				})
+				.addClass('start')
+				.val(startTime)
+				.insertBefore($element);
+			$('<input>')
+				.attr('type', 'text')
+				.attr('placeholder', t('workflowengine', 'End'))
+				.attr('title', t('workflowengine', 'Example: {placeholder}', {placeholder: '16:00'}))
+				.addClass('has-tooltip')
+				.tooltip({
+					placement: 'bottom'
+				})
+				.addClass('end')
+				.val(endTime)
+				.insertBefore($element);
+
+			var timezoneInput = $('<input>')
+				.attr('type', 'hidden')
+				.css('width', '250px')
+				.insertBefore($element)
+				.val(timezone);
+
+			timezoneInput.select2({
+				allowClear: false,
+				multiple: false,
+				placeholder: t('workflowengine', 'Select timezone…'),
+				ajax: {
+					url: OC.generateUrl('apps/workflowengine/timezones'),
+					dataType: 'json',
+					quietMillis: 100,
+					data: function (term) {
+						if (term === '') {
+							// Default search in the same continent...
+							term = jstz.determine().name().split('/');
+							term = term[0];
+						}
+						return {
+							search: term
+						};
+					},
+					results: function (response) {
+						var results = [];
+						$.each(response, function(timezone) {
+							results.push({ id: timezone });
+						});
+
+						return {
+							results: results,
+							more: false
+						};
+					}
+				},
+				initSelection: function (element, callback) {
+					callback(element.val());
+				},
+				formatResult: function (element) {
+					return '<span>' + element.id + '</span>';
+				},
+				formatSelection: function (element) {
+					if (!_.isUndefined(element.id)) {
+						element = element.id;
+					}
+					return '<span>' + element + '</span>';
+				}
+			});
+
+			// Has to be added after select2 for `event.target.classList`
+			timezoneInput.addClass('timezone');
+
+			$element.parent()
+				.on('change', '.start', _.bind(this.update, this))
+				.on('change', '.end', _.bind(this.update, this))
+				.on('change', '.timezone', _.bind(this.update, this));
+
+			this._$element = $element;
+		},
+		update: function(event) {
+			var value = event.target.value,
+				key = null;
+
+			for (var i = 0; i < event.target.classList.length; i++) {
+				key = event.target.classList[i];
+			}
+
+			if (key === null) {
+				console.warn('update triggered but element doesn\'t have any class');
+				return;
+			}
+
+			var data = JSON.parse(this._$element.val()),
+				startTime = moment(data[0].split(' ', 2)[0], 'H:m Z'),
+				endTime = moment(data[1].split(' ', 2)[0], 'H:m Z'),
+				timezone = data[0].split(' ', 2)[1];
+
+			if (key === 'start' || key === 'end') {
+				var parsedDate = moment(value, ['H:m', 'h:m a'], true).format('HH:mm');
+
+				if (parsedDate === 'Invalid date') {
+					return;
+				}
+
+				var indexValue = 0;
+				if (key === 'end') {
+					indexValue = 1;
+				}
+				data[indexValue] = parsedDate + ' ' + timezone;
+			}
+
+			if (key === 'timezone') {
+				data[0] = startTime.format('HH:mm') + ' ' + value;
+				data[1] = endTime.format('HH:mm') + ' ' + value;
+			}
+
+			this._$element.val(JSON.stringify(data));
+			this._$element.trigger('change');
+		}
+	};
+})();
+
+OC.Plugins.register('OCA.WorkflowEngine.CheckPlugins', OCA.WorkflowEngine.Plugins.RequestTimePlugin);
diff --git a/apps/workflowengine/js/requesturlplugin.js b/apps/workflowengine/js/requesturlplugin.js
new file mode 100644
index 00000000000..5f21d2a59fc
--- /dev/null
+++ b/apps/workflowengine/js/requesturlplugin.js
@@ -0,0 +1,117 @@
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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.RequestURLPlugin = {
+		predefinedValues: ['webdav'],
+		getCheck: function() {
+			return {
+				'class': 'OCA\\WorkflowEngine\\Check\\RequestURL',
+				'name': t('workflowengine', 'Request URL'),
+				'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\\RequestURL') {
+				return;
+			}
+
+			var placeholder = t('workflowengine', 'https://localhost/index.php');
+
+			if (check['operator'] === 'matches' || check['operator'] === '!matches') {
+				placeholder = t('workflowengine', '/^https\\:\\/\\/localhost\\/index\\.php$/i');
+			}
+
+			$(element).css('width', '250px')
+				.attr('placeholder', placeholder)
+				.attr('title', t('workflowengine', 'Example: {placeholder}', {placeholder: placeholder}))
+				.addClass('has-tooltip')
+				.tooltip({
+					placement: 'bottom'
+				});
+
+			if (check['operator'] === 'matches' || check['operator'] === '!matches') {
+				if (this._validateRegex(check['value'])) {
+					$(element).removeClass('invalid-input');
+				} else {
+					$(element).addClass('invalid-input');
+				}
+			} else {
+				var self = this,
+					data = [
+					{
+						text: t('workflowengine', 'Predefined URLs'),
+						children: [
+							{id: 'webdav', text: t('workflowengine', 'Files WebDAV')}
+						]
+					}
+				];
+				if (this.predefinedValues.indexOf(check['value']) === -1) {
+					data.unshift({
+						id: check['value'],
+						text: check['value']
+					})
+				}
+
+
+				$(element).select2({
+					data: data,
+					createSearchChoice: function(term) {
+						if (self.predefinedValues.indexOf(check['value']) === -1) {
+							return {
+								id: term,
+								text: term
+							};
+						}
+					},
+					id: function(element) {
+						return element.id;
+					},
+					formatResult: function (tag) {
+						return tag.text;
+					},
+					formatSelection: function (tag) {
+						return tag.text;
+					},
+					escapeMarkup: function(m) {
+						return m;
+					}
+				})
+			}
+		},
+
+		_validateRegex: function(string) {
+			var regexRegex = /^\/(.*)\/([gui]{0,3})$/,
+				result = regexRegex.exec(string);
+			return result !== null;
+		}
+	};
+})();
+
+OC.Plugins.register('OCA.WorkflowEngine.CheckPlugins', OCA.WorkflowEngine.Plugins.RequestURLPlugin);
diff --git a/apps/workflowengine/js/requestuseragentplugin.js b/apps/workflowengine/js/requestuseragentplugin.js
new file mode 100644
index 00000000000..8413d52ac43
--- /dev/null
+++ b/apps/workflowengine/js/requestuseragentplugin.js
@@ -0,0 +1,118 @@
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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.RequestUserAgentPlugin = {
+		predefinedValues: ['android', 'ios', 'desktop'],
+		getCheck: function() {
+			return {
+				'class': 'OCA\\WorkflowEngine\\Check\\RequestUserAgent',
+				'name': t('workflowengine', 'Request user agent'),
+				'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\\RequestUserAgent') {
+				return;
+			}
+
+			var placeholder = t('workflowengine', 'Mozilla/5.0 User Agent');
+
+			if (check['operator'] === 'matches' || check['operator'] === '!matches') {
+				placeholder = t('workflowengine', '/^Mozilla\\/5\\.0 (.?)$/i');
+			}
+
+			$(element).css('width', '250px')
+				.attr('placeholder', placeholder)
+				.attr('title', t('workflowengine', 'Example: {placeholder}', {placeholder: placeholder}))
+				.addClass('has-tooltip')
+				.tooltip({
+					placement: 'bottom'
+				});
+
+			if (check['operator'] === 'matches' || check['operator'] === '!matches') {
+				if (this._validateRegex(check['value'])) {
+					$(element).removeClass('invalid-input');
+				} else {
+					$(element).addClass('invalid-input');
+				}
+			} else {
+				var self = this,
+					data = [
+					{
+						text: t('workflowengine', 'Sync clients'),
+						children: [
+							{id: 'android', text: t('workflowengine', 'Android client')},
+							{id: 'ios', text: t('workflowengine', 'iOS client')},
+							{id: 'desktop', text: t('workflowengine', 'Desktop client')}
+						]
+					}
+				];
+				if (this.predefinedValues.indexOf(check['value']) === -1) {
+					data.unshift({
+						id: check['value'],
+						text: check['value']
+					})
+				}
+
+				$(element).select2({
+					data: data,
+					createSearchChoice: function(term) {
+						if (self.predefinedValues.indexOf(check['value']) === -1) {
+							return {
+								id: term,
+								text: term
+							};
+						}
+					},
+					id: function(element) {
+						return element.id;
+					},
+					formatResult: function (tag) {
+						return tag.text;
+					},
+					formatSelection: function (tag) {
+						return tag.text;
+					},
+					escapeMarkup: function(m) {
+						return m;
+					}
+				})
+			}
+		},
+
+		_validateRegex: function(string) {
+			var regexRegex = /^\/(.*)\/([gui]{0,3})$/,
+				result = regexRegex.exec(string);
+			return result !== null;
+		}
+	};
+})();
+
+OC.Plugins.register('OCA.WorkflowEngine.CheckPlugins', OCA.WorkflowEngine.Plugins.RequestUserAgentPlugin);
diff --git a/apps/workflowengine/js/usergroupmembershipplugin.js b/apps/workflowengine/js/usergroupmembershipplugin.js
index 528a7bd3e3d..1c09e7d5ccd 100644
--- a/apps/workflowengine/js/usergroupmembershipplugin.js
+++ b/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;
 			}
 
diff --git a/apps/workflowengine/lib/AppInfo/Application.php b/apps/workflowengine/lib/AppInfo/Application.php
index 84339503047..b5e769d01d7 100644
--- a/apps/workflowengine/lib/AppInfo/Application.php
+++ b/apps/workflowengine/lib/AppInfo/Application.php
@@ -30,6 +30,7 @@ class Application extends \OCP\AppFramework\App {
 		parent::__construct('workflowengine');
 
 		$this->getContainer()->registerAlias('FlowOperationsController', 'OCA\WorkflowEngine\Controller\FlowOperations');
+		$this->getContainer()->registerAlias('RequestTimeController', 'OCA\WorkflowEngine\Controller\RequestTime');
 	}
 
 	/**
@@ -40,9 +41,32 @@ class Application extends \OCP\AppFramework\App {
 		$dispatcher->addListener(
 			'OCP\WorkflowEngine::loadAdditionalSettingScripts',
 			function() {
-				Util::addStyle('workflowengine', 'admin');
-				Util::addScript('workflowengine', 'admin');
-				Util::addScript('workflowengine', 'usergroupmembershipplugin');
+				style('workflowengine', [
+					'admin',
+				]);
+
+				script('core', [
+					'oc-backbone-webdav',
+					'systemtags/systemtags',
+					'systemtags/systemtagmodel',
+					'systemtags/systemtagscollection',
+				]);
+
+				vendor_script('jsTimezoneDetect/jstz');
+
+				script('workflowengine', [
+					'admin',
+
+					// Check plugins
+					'filemimetypeplugin',
+					'filesizeplugin',
+					'filesystemtagsplugin',
+					'requestremoteaddressplugin',
+					'requesttimeplugin',
+					'requesturlplugin',
+					'requestuseragentplugin',
+					'usergroupmembershipplugin',
+				]);
 			},
 			-100
 		);
diff --git a/apps/workflowengine/lib/Check/AbstractStringCheck.php b/apps/workflowengine/lib/Check/AbstractStringCheck.php
new file mode 100644
index 00000000000..0fd728e3496
--- /dev/null
+++ b/apps/workflowengine/lib/Check/AbstractStringCheck.php
@@ -0,0 +1,121 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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\IL10N;
+use OCP\WorkflowEngine\ICheck;
+
+abstract class AbstractStringCheck implements ICheck {
+
+	/** @var array[] Nested array: [Pattern => [ActualValue => Regex Result]] */
+	protected $matches;
+
+	/** @var IL10N */
+	protected $l;
+
+	/**
+	 * @param IL10N $l
+	 */
+	public function __construct(IL10N $l) {
+		$this->l = $l;
+	}
+
+	/**
+	 * @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($this->l->t('The given operator is invalid'), 1);
+		}
+
+		if (in_array($operator, ['matches', '!matches']) &&
+			  @preg_match($value, null) === false) {
+			throw new \UnexpectedValueException($this->l->t('The given regular expression is invalid'), 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];
+	}
+}
diff --git a/apps/workflowengine/lib/Check/FileMimeType.php b/apps/workflowengine/lib/Check/FileMimeType.php
new file mode 100644
index 00000000000..1de9a70a17d
--- /dev/null
+++ b/apps/workflowengine/lib/Check/FileMimeType.php
@@ -0,0 +1,85 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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\IL10N;
+use OCP\IRequest;
+
+class FileMimeType extends AbstractStringCheck {
+
+	/** @var string */
+	protected $mimeType;
+
+	/** @var IRequest */
+	protected $request;
+
+	/** @var IMimeTypeDetector */
+	protected $mimeTypeDetector;
+
+	/**
+	 * @param IL10N $l
+	 * @param IRequest $request
+	 * @param IMimeTypeDetector $mimeTypeDetector
+	 */
+	public function __construct(IL10N $l, IRequest $request, IMimeTypeDetector $mimeTypeDetector) {
+		parent::__construct($l);
+		$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
+		);
+	}
+}
diff --git a/apps/workflowengine/lib/Check/FileSize.php b/apps/workflowengine/lib/Check/FileSize.php
new file mode 100644
index 00000000000..1744793dec7
--- /dev/null
+++ b/apps/workflowengine/lib/Check/FileSize.php
@@ -0,0 +1,119 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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\IL10N;
+use OCP\IRequest;
+use OCP\Util;
+use OCP\WorkflowEngine\ICheck;
+
+class FileSize implements ICheck {
+
+	/** @var int */
+	protected $size;
+
+	/** @var IL10N */
+	protected $l;
+
+	/** @var IRequest */
+	protected $request;
+
+	/**
+	 * @param IL10N $l
+	 * @param IRequest $request
+	 */
+	public function __construct(IL10N $l, IRequest $request) {
+		$this->l = $l;
+		$this->request = $request;
+	}
+
+	/**
+	 * @param IStorage $storage
+	 * @param string $path
+	 */
+	public function setFileInfo(IStorage $storage, $path) {
+	}
+
+	/**
+	 * @param string $operator
+	 * @param string $value
+	 * @return bool
+	 */
+	public function executeCheck($operator, $value) {
+		$size = $this->getFileSizeFromHeader();
+
+		$value = Util::computerFileSize($value);
+		if ($size !== false) {
+			switch ($operator) {
+				case 'less':
+					return $size < $value;
+				case '!less':
+					return $size >= $value;
+				case 'greater':
+					return $size > $value;
+				case '!greater':
+					return $size <= $value;
+			}
+		}
+		return false;
+	}
+
+	/**
+	 * @param string $operator
+	 * @param string $value
+	 * @throws \UnexpectedValueException
+	 */
+	public function validateCheck($operator, $value) {
+		if (!in_array($operator, ['less', '!less', 'greater', '!greater'])) {
+			throw new \UnexpectedValueException($this->l->t('The given operator is invalid'), 1);
+		}
+
+		if (!preg_match('/^[0-9]+[ ]?[kmgt]?b$/i', $value)) {
+			throw new \UnexpectedValueException($this->l->t('The given file size is invalid'), 2);
+		}
+	}
+
+	/**
+	 * @return string
+	 */
+	protected function getFileSizeFromHeader() {
+		if ($this->size !== null) {
+			return $this->size;
+		}
+
+		$size = $this->request->getHeader('OC-Total-Length');
+		if ($size === null) {
+			if (in_array($this->request->getMethod(), ['POST', 'PUT'])) {
+				$size = $this->request->getHeader('Content-Length');
+			}
+		}
+
+		if ($size === null) {
+			$size = false;
+		}
+
+		$this->size = $size;
+		return $this->size;
+	}
+}
diff --git a/apps/workflowengine/lib/Check/FileSystemTags.php b/apps/workflowengine/lib/Check/FileSystemTags.php
new file mode 100644
index 00000000000..e9b5a945967
--- /dev/null
+++ b/apps/workflowengine/lib/Check/FileSystemTags.php
@@ -0,0 +1,161 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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\Cache\ICache;
+use OCP\Files\Storage\IStorage;
+use OCP\IL10N;
+use OCP\SystemTag\ISystemTagManager;
+use OCP\SystemTag\ISystemTagObjectMapper;
+use OCP\SystemTag\TagNotFoundException;
+use OCP\WorkflowEngine\ICheck;
+
+class FileSystemTags implements ICheck {
+
+	/** @var array */
+	protected $fileIds;
+
+	/** @var array */
+	protected $fileSystemTags;
+
+	/** @var IL10N */
+	protected $l;
+
+	/** @var ISystemTagManager */
+	protected $systemTagManager;
+
+	/** @var ISystemTagObjectMapper */
+	protected $systemTagObjectMapper;
+
+	/** @var IStorage */
+	protected $storage;
+
+	/** @var string */
+	protected $path;
+
+	/**
+	 * @param IL10N $l
+	 * @param ISystemTagManager $systemTagManager
+	 * @param ISystemTagObjectMapper $systemTagObjectMapper
+	 */
+	public function __construct(IL10N $l, ISystemTagManager $systemTagManager, ISystemTagObjectMapper $systemTagObjectMapper) {
+		$this->l = $l;
+		$this->systemTagManager = $systemTagManager;
+		$this->systemTagObjectMapper = $systemTagObjectMapper;
+	}
+
+	/**
+	 * @param IStorage $storage
+	 * @param string $path
+	 */
+	public function setFileInfo(IStorage $storage, $path) {
+		$this->storage = $storage;
+		$this->path = $path;
+	}
+
+	/**
+	 * @param string $operator
+	 * @param string $value
+	 * @return bool
+	 */
+	public function executeCheck($operator, $value) {
+		$systemTags = $this->getSystemTags();
+		return ($operator === 'is') === in_array($value, $systemTags);
+	}
+
+	/**
+	 * @param string $operator
+	 * @param string $value
+	 * @throws \UnexpectedValueException
+	 */
+	public function validateCheck($operator, $value) {
+		if (!in_array($operator, ['is', '!is'])) {
+			throw new \UnexpectedValueException($this->l->t('The given operator is invalid'), 1);
+		}
+
+		try {
+			$this->systemTagManager->getTagsByIds($value);
+		} catch (TagNotFoundException $e) {
+			throw new \UnexpectedValueException($this->l->t('The given tag id is invalid'), 2);
+		} catch (\InvalidArgumentException $e) {
+			throw new \UnexpectedValueException($this->l->t('The given tag id is invalid'), 3);
+		}
+	}
+
+	/**
+	 * Get the ids of the assigned system tags
+	 * @return string[]
+	 */
+	protected function getSystemTags() {
+		$cache = $this->storage->getCache();
+		$fileIds = $this->getFileIds($cache, $this->path);
+
+		$systemTags = [];
+		foreach ($fileIds as $i => $fileId) {
+			if (isset($this->fileSystemTags[$fileId])) {
+				$systemTags[] = $this->fileSystemTags[$fileId];
+				unset($fileIds[$i]);
+			}
+		}
+
+		if (!empty($fileIds)) {
+			$mappedSystemTags = $this->systemTagObjectMapper->getTagIdsForObjects($fileIds, 'files');
+			foreach ($mappedSystemTags as $fileId => $fileSystemTags) {
+				$this->fileSystemTags[$fileId] = $fileSystemTags;
+				$systemTags[] = $fileSystemTags;
+			}
+		}
+
+		$systemTags = call_user_func_array('array_merge', $systemTags);
+		$systemTags = array_unique($systemTags);
+		return $systemTags;
+	}
+
+	/**
+	 * Get the file ids of the given path and its parents
+	 * @param ICache $cache
+	 * @param string $path
+	 * @return int[]
+	 */
+	protected function getFileIds(ICache $cache, $path) {
+		$cacheId = $cache->getNumericStorageId();
+		if (isset($this->fileIds[$cacheId][$path])) {
+			return $this->fileIds[$cacheId][$path];
+		}
+
+		if ($path !== dirname($path)) {
+			$parentIds = $this->getFileIds($cache, dirname($path));
+		} else {
+			return [];
+		}
+
+		$fileId = $cache->getId($path);
+		if ($fileId !== -1) {
+			$parentIds[] = $cache->getId($path);
+		}
+
+		$this->fileIds[$cacheId][$path] = $parentIds;
+
+		return $parentIds;
+	}
+}
diff --git a/apps/workflowengine/lib/Check/RequestRemoteAddress.php b/apps/workflowengine/lib/Check/RequestRemoteAddress.php
new file mode 100644
index 00000000000..de9738fb631
--- /dev/null
+++ b/apps/workflowengine/lib/Check/RequestRemoteAddress.php
@@ -0,0 +1,154 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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\IL10N;
+use OCP\IRequest;
+use OCP\WorkflowEngine\ICheck;
+
+class RequestRemoteAddress implements ICheck {
+
+	/** @var IL10N */
+	protected $l;
+
+	/** @var IRequest */
+	protected $request;
+
+	/**
+	 * @param IL10N $l
+	 * @param IRequest $request
+	 */
+	public function __construct(IL10N $l, IRequest $request) {
+		$this->l = $l;
+		$this->request = $request;
+	}
+
+	/**
+	 * @param IStorage $storage
+	 * @param string $path
+	 */
+	public function setFileInfo(IStorage $storage, $path) {
+		// A different path doesn't change time, so nothing to do here.
+	}
+
+	/**
+	 * @param string $operator
+	 * @param string $value
+	 * @return bool
+	 */
+	public function executeCheck($operator, $value) {
+		$actualValue = $this->request->getRemoteAddress();
+		$decodedValue = explode('/', $value);
+
+		if ($operator === 'matchesIPv4') {
+			return $this->matchIPv4($actualValue, $decodedValue[0], $decodedValue[1]);
+		} else if ($operator === '!matchesIPv4') {
+			return !$this->matchIPv4($actualValue, $decodedValue[0], $decodedValue[1]);
+		} else if ($operator === 'matchesIPv6') {
+			return $this->matchIPv6($actualValue, $decodedValue[0], $decodedValue[1]);
+		} else {
+			return !$this->matchIPv6($actualValue, $decodedValue[0], $decodedValue[1]);
+		}
+	}
+
+	/**
+	 * @param string $operator
+	 * @param string $value
+	 * @throws \UnexpectedValueException
+	 */
+	public function validateCheck($operator, $value) {
+		if (!in_array($operator, ['matchesIPv4', '!matchesIPv4', 'matchesIPv6', '!matchesIPv6'])) {
+			throw new \UnexpectedValueException($this->l->t('The given operator is invalid'), 1);
+		}
+
+		$decodedValue = explode('/', $value);
+		if (sizeof($decodedValue) !== 2) {
+			throw new \UnexpectedValueException($this->l->t('The given IP range is invalid'), 2);
+		}
+
+		if (in_array($operator, ['matchesIPv4', '!matchesIPv4'])) {
+			if (!filter_var($decodedValue[0], FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
+				throw new \UnexpectedValueException($this->l->t('The given IP range is not valid for IPv4'), 3);
+			}
+			if ($decodedValue[1] > 32 || $decodedValue[1] <= 0) {
+				throw new \UnexpectedValueException($this->l->t('The given IP range is not valid for IPv4'), 4);
+			}
+		} else {
+			if (!filter_var($decodedValue[0], FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
+				throw new \UnexpectedValueException($this->l->t('The given IP range is not valid for IPv6'), 3);
+			}
+			if ($decodedValue[1] > 128 || $decodedValue[1] <= 0) {
+				throw new \UnexpectedValueException($this->l->t('The given IP range is not valid for IPv6'), 4);
+			}
+		}
+	}
+
+	/**
+	 * Based on http://stackoverflow.com/a/594134
+	 * @param string $ip
+	 * @param string $rangeIp
+	 * @param int $bits
+	 * @return bool
+	 */
+	protected function matchIPv4($ip, $rangeIp, $bits) {
+		$rangeDecimal = ip2long($rangeIp);
+		$ipDecimal = ip2long($ip);
+		$mask = -1 << (32 - $bits);
+		return ($ipDecimal & $mask) === ($rangeDecimal & $mask);
+	}
+
+	/**
+	 * Based on http://stackoverflow.com/a/7951507
+	 * @param string $ip
+	 * @param string $rangeIp
+	 * @param int $bits
+	 * @return bool
+	 */
+	protected function matchIPv6($ip, $rangeIp, $bits) {
+		$ipNet = inet_pton($ip);
+		$binaryIp = $this->ipv6ToBits($ipNet);
+		$ipNetBits = substr($binaryIp, 0, $bits);
+
+		$rangeNet = inet_pton($rangeIp);
+		$binaryRange = $this->ipv6ToBits($rangeNet);
+		$rangeNetBits = substr($binaryRange, 0, $bits);
+
+		return $ipNetBits === $rangeNetBits;
+	}
+
+	/**
+	 * Based on http://stackoverflow.com/a/7951507
+	 * @param string $packedIp
+	 * @return string
+	 */
+	protected function ipv6ToBits($packedIp) {
+		$unpackedIp = unpack('A16', $packedIp);
+		$unpackedIp = str_split($unpackedIp[1]);
+		$binaryIp = '';
+		foreach ($unpackedIp as $char) {
+			$binaryIp .= str_pad(decbin(ord($char)), 8, '0', STR_PAD_LEFT);
+		}
+		return str_pad($binaryIp, 128, '0', STR_PAD_RIGHT);
+	}
+}
diff --git a/apps/workflowengine/lib/Check/RequestTime.php b/apps/workflowengine/lib/Check/RequestTime.php
new file mode 100644
index 00000000000..2aa79e77673
--- /dev/null
+++ b/apps/workflowengine/lib/Check/RequestTime.php
@@ -0,0 +1,129 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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\AppFramework\Utility\ITimeFactory;
+use OCP\Files\Storage\IStorage;
+use OCP\IL10N;
+use OCP\WorkflowEngine\ICheck;
+
+class RequestTime implements ICheck {
+
+	const REGEX_TIME = '([0-1][0-9]|2[0-3]):([0-5][0-9])';
+	const REGEX_TIMEZONE = '([a-zA-Z]+(?:\\/[a-zA-Z\-\_]+)+)';
+
+	/** @var bool[] */
+	protected $cachedResults;
+
+	/** @var IL10N */
+	protected $l;
+
+	/** @var ITimeFactory */
+	protected $timeFactory;
+
+	/**
+	 * @param ITimeFactory $timeFactory
+	 */
+	public function __construct(IL10N $l, ITimeFactory $timeFactory) {
+		$this->l = $l;
+		$this->timeFactory = $timeFactory;
+	}
+
+	/**
+	 * @param IStorage $storage
+	 * @param string $path
+	 */
+	public function setFileInfo(IStorage $storage, $path) {
+		// A different path doesn't change time, so nothing to do here.
+	}
+
+	/**
+	 * @param string $operator
+	 * @param string $value
+	 * @return bool
+	 */
+	public function executeCheck($operator, $value) {
+		$valueHash = md5($value);
+
+		if (isset($this->cachedResults[$valueHash])) {
+			return $this->cachedResults[$valueHash];
+		}
+
+		$timestamp = $this->timeFactory->getTime();
+
+		$values = json_decode($value, true);
+		$timestamp1 = $this->getTimestamp($timestamp, $values[0]);
+		$timestamp2 = $this->getTimestamp($timestamp, $values[1]);
+
+		if ($timestamp1 < $timestamp2) {
+			$in = $timestamp1 <= $timestamp && $timestamp <= $timestamp2;
+		} else {
+			$in = $timestamp1 <= $timestamp || $timestamp <= $timestamp2;
+		}
+
+		return ($operator === 'in') ? $in : !$in;
+	}
+
+	/**
+	 * @param int $currentTimestamp
+	 * @param string $value Format: "H:i e"
+	 * @return int
+	 */
+	protected function getTimestamp($currentTimestamp, $value) {
+		list($time1, $timezone1) = explode(' ', $value);
+		list($hour1, $minute1) = explode(':', $time1);
+		$date1 = new \DateTime('now', new \DateTimeZone($timezone1));
+		$date1->setTimestamp($currentTimestamp);
+		$date1->setTime($hour1, $minute1);
+
+		return $date1->getTimestamp();
+	}
+
+	/**
+	 * @param string $operator
+	 * @param string $value
+	 * @throws \UnexpectedValueException
+	 */
+	public function validateCheck($operator, $value) {
+		if (!in_array($operator, ['in', '!in'])) {
+			throw new \UnexpectedValueException($this->l->t('The given operator is invalid'), 1);
+		}
+
+		$regexValue = '\"' . self::REGEX_TIME . ' ' . self::REGEX_TIMEZONE . '\"';
+		$result = preg_match('/^\[' . $regexValue . ',' . $regexValue . '\]$/', $value, $matches);
+		if (!$result) {
+			throw new \UnexpectedValueException($this->l->t('The given time span is invalid'), 2);
+		}
+
+		$values = json_decode($value, true);
+		$time1 = \DateTime::createFromFormat('H:i e', $values[0]);
+		if ($time1 === false) {
+			throw new \UnexpectedValueException($this->l->t('The given start time is invalid'), 3);
+		}
+
+		$time2 = \DateTime::createFromFormat('H:i e', $values[1]);
+		if ($time2 === false) {
+			throw new \UnexpectedValueException($this->l->t('The given end time is invalid'), 4);
+		}
+	}
+}
diff --git a/apps/workflowengine/lib/Check/RequestURL.php b/apps/workflowengine/lib/Check/RequestURL.php
new file mode 100644
index 00000000000..36d41c101f2
--- /dev/null
+++ b/apps/workflowengine/lib/Check/RequestURL.php
@@ -0,0 +1,92 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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\IL10N;
+use OCP\IRequest;
+
+class RequestURL extends AbstractStringCheck {
+
+	/** @var string */
+	protected $url;
+
+	/** @var IRequest */
+	protected $request;
+
+	/**
+	 * @param IL10N $l
+	 * @param IRequest $request
+	 */
+	public function __construct(IL10N $l, IRequest $request) {
+		parent::__construct($l);
+		$this->request = $request;
+	}
+
+	/**
+	 * @param string $operator
+	 * @param string $value
+	 * @return bool
+	 */
+	public function executeCheck($operator, $value)  {
+		$actualValue = $this->getActualValue();
+		if (in_array($operator, ['is', '!is'])) {
+			switch ($value) {
+				case 'webdav':
+					if ($operator === 'is') {
+						return $this->isWebDAVRequest();
+					} else {
+						return !$this->isWebDAVRequest();
+					}
+			}
+		}
+		return $this->executeStringCheck($operator, $value, $actualValue);
+	}
+
+	/**
+	 * @return string
+	 */
+	protected function getActualValue() {
+		if ($this->url !== null) {
+			return $this->url;
+		}
+
+		$this->url = $this->request->getServerProtocol() . '://';// E.g. http(s) + ://
+		$this->url .= $this->request->getServerHost();// E.g. localhost
+		$this->url .= $this->request->getScriptName();// E.g. /nextcloud/index.php
+		$this->url .= $this->request->getPathInfo();// E.g. /apps/files_texteditor/ajax/loadfile
+
+		return $this->url; // E.g. https://localhost/nextcloud/index.php/apps/files_texteditor/ajax/loadfile
+	}
+
+	/**
+	 * @return bool
+	 */
+	protected function isWebDAVRequest() {
+		return substr($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
+		);
+	}
+}
diff --git a/apps/workflowengine/lib/Check/RequestUserAgent.php b/apps/workflowengine/lib/Check/RequestUserAgent.php
new file mode 100644
index 00000000000..7a8d4a71acf
--- /dev/null
+++ b/apps/workflowengine/lib/Check/RequestUserAgent.php
@@ -0,0 +1,74 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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\IL10N;
+use OCP\IRequest;
+
+class RequestUserAgent extends AbstractStringCheck {
+
+	/** @var IRequest */
+	protected $request;
+
+	/**
+	 * @param IL10N $l
+	 * @param IRequest $request
+	 */
+	public function __construct(IL10N $l, IRequest $request) {
+		parent::__construct($l);
+		$this->request = $request;
+	}
+
+	/**
+	 * @param string $operator
+	 * @param string $value
+	 * @return bool
+	 */
+	public function executeCheck($operator, $value)  {
+		$actualValue = $this->getActualValue();
+		if (in_array($operator, ['is', '!is'])) {
+			switch ($value) {
+				case 'android':
+					$operator = $operator === 'is' ? 'matches' : '!matches';
+					$value = IRequest::USER_AGENT_CLIENT_ANDROID;
+					break;
+				case 'ios':
+					$operator = $operator === 'is' ? 'matches' : '!matches';
+					$value = IRequest::USER_AGENT_CLIENT_IOS;
+					break;
+				case 'desktop':
+					$operator = $operator === 'is' ? 'matches' : '!matches';
+					$value = IRequest::USER_AGENT_CLIENT_DESKTOP;
+					break;
+			}
+		}
+		return $this->executeStringCheck($operator, $value, $actualValue);
+	}
+
+	/**
+	 * @return string
+	 */
+	protected function getActualValue() {
+		return (string) $this->request->getHeader('User-Agent');
+	}
+}
diff --git a/apps/workflowengine/lib/Check/UserGroupMembership.php b/apps/workflowengine/lib/Check/UserGroupMembership.php
index 6390c57fbea..fd6ba00d092 100644
--- a/apps/workflowengine/lib/Check/UserGroupMembership.php
+++ b/apps/workflowengine/lib/Check/UserGroupMembership.php
@@ -89,11 +89,11 @@ class UserGroupMembership implements ICheck {
 	 */
 	public function validateCheck($operator, $value) {
 		if (!in_array($operator, ['is', '!is'])) {
-			throw new \UnexpectedValueException($this->l->t('Operator %s is invalid', $operator), 1);
+			throw new \UnexpectedValueException($this->l->t('The given operator is invalid'), 1);
 		}
 
 		if (!$this->groupManager->groupExists($value)) {
-			throw new \UnexpectedValueException($this->l->t('Group %s does not exist', $value), 2);
+			throw new \UnexpectedValueException($this->l->t('The given group does not exist'), 2);
 		}
 	}
 
diff --git a/apps/workflowengine/lib/Controller/RequestTime.php b/apps/workflowengine/lib/Controller/RequestTime.php
new file mode 100644
index 00000000000..dd0efa89b91
--- /dev/null
+++ b/apps/workflowengine/lib/Controller/RequestTime.php
@@ -0,0 +1,52 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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\Controller;
+
+use OCP\AppFramework\Controller;
+use OCP\AppFramework\Http\JSONResponse;
+
+class RequestTime extends Controller {
+
+	/**
+	 * @NoAdminRequired
+	 *
+	 * @param string $search
+	 * @return JSONResponse
+	 */
+	public function getTimezones($search = '') {
+		$timezones = \DateTimeZone::listIdentifiers();
+
+		if ($search !== '') {
+			$timezones = array_filter($timezones, function ($timezone) use ($search) {
+				return strpos(strtolower($timezone), strtolower($search)) !== false;
+			});
+		}
+
+		$timezones = array_slice($timezones, 0, 10);
+
+		$response = [];
+		foreach ($timezones as $timezone) {
+			$response[$timezone] = $timezone;
+		}
+		return new JSONResponse($response);
+	}
+}
diff --git a/apps/workflowengine/templates/admin.php b/apps/workflowengine/templates/admin.php
index 4eabf783bba..935e8c70f17 100644
--- a/apps/workflowengine/templates/admin.php
+++ b/apps/workflowengine/templates/admin.php
@@ -36,7 +36,7 @@
 			{{#if operation.id}}
 			<span class="button-delete pull-right icon-delete"></span>
 			{{/if}}
-			<span class="pull-right info">{{operation.class}} - ID: {{operation.id}} - operation: {{operation.operation}}</span>
+			<input type="text" class="pull-right operation-operation" value="{{operation.operation}}">
 
 			<div class="checks">
 				{{#each operation.checks}}
diff --git a/apps/workflowengine/tests/Check/AbstractStringCheckTest.php b/apps/workflowengine/tests/Check/AbstractStringCheckTest.php
new file mode 100644
index 00000000000..91da8931604
--- /dev/null
+++ b/apps/workflowengine/tests/Check/AbstractStringCheckTest.php
@@ -0,0 +1,149 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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\Tests\Check;
+
+
+class AbstractStringCheckTest extends \Test\TestCase {
+
+	protected function getCheckMock() {
+		$l = $this->getMockBuilder('OCP\IL10N')
+			->disableOriginalConstructor()
+			->getMock();
+		$l->expects($this->any())
+			->method('t')
+			->willReturnCallback(function($string, $args) {
+					return sprintf($string, $args);
+				});
+
+		$check = $this->getMockBuilder('OCA\WorkflowEngine\Check\AbstractStringCheck')
+			->setConstructorArgs([
+				$l,
+			])
+			->setMethods([
+				'setPath',
+				'executeCheck',
+				'getActualValue',
+			])
+			->getMock();
+
+		return $check;
+	}
+
+	public function dataExecuteStringCheck() {
+		return [
+			['is', 'same', 'same', true],
+			['is', 'different', 'not the same', false],
+			['!is', 'same', 'same', false],
+			['!is', 'different', 'not the same', true],
+
+			['matches', '/match/', 'match', true],
+			['matches', '/different/', 'not the same', false],
+			['!matches', '/match/', 'match', false],
+			['!matches', '/different/', 'not the same', true],
+		];
+	}
+
+	/**
+	 * @dataProvider dataExecuteStringCheck
+	 * @param string $operation
+	 * @param string $checkValue
+	 * @param string $actualValue
+	 * @param bool $expected
+	 */
+	public function testExecuteStringCheck($operation, $checkValue, $actualValue, $expected) {
+		$check = $this->getCheckMock();
+
+		/** @var \OCA\WorkflowEngine\Check\AbstractStringCheck $check */
+		$this->assertEquals($expected, $this->invokePrivate($check, 'executeStringCheck', [$operation, $checkValue, $actualValue]));
+	}
+
+	public function dataValidateCheck() {
+		return [
+			['is', '/Invalid(Regex/'],
+			['!is', '/Invalid(Regex/'],
+			['matches', '/Valid(Regex)/'],
+			['!matches', '/Valid(Regex)/'],
+		];
+	}
+
+	/**
+	 * @dataProvider dataValidateCheck
+	 * @param string $operator
+	 * @param string $value
+	 */
+	public function testValidateCheck($operator, $value) {
+		$check = $this->getCheckMock();
+
+		/** @var \OCA\WorkflowEngine\Check\AbstractStringCheck $check */
+		$check->validateCheck($operator, $value);
+	}
+
+	public function dataValidateCheckInvalid() {
+		return [
+			['!!is', '', 1, 'The given operator is invalid'],
+			['less', '', 1, 'The given operator is invalid'],
+			['matches', '/Invalid(Regex/', 2, 'The given regular expression is invalid'],
+			['!matches', '/Invalid(Regex/', 2, 'The given regular expression is invalid'],
+		];
+	}
+
+	/**
+	 * @dataProvider dataValidateCheckInvalid
+	 * @param $operator
+	 * @param $value
+	 * @param $exceptionCode
+	 * @param $exceptionMessage
+	 */
+	public function testValidateCheckInvalid($operator, $value, $exceptionCode, $exceptionMessage) {
+		$check = $this->getCheckMock();
+
+		try {
+			/** @var \OCA\WorkflowEngine\Check\AbstractStringCheck $check */
+			$check->validateCheck($operator, $value);
+		} catch (\UnexpectedValueException $e) {
+			$this->assertEquals($exceptionCode, $e->getCode());
+			$this->assertEquals($exceptionMessage, $e->getMessage());
+		}
+	}
+
+	public function dataMatch() {
+		return [
+			['/valid/', 'valid', [], true],
+			['/valid/', 'valid', [md5('/valid/') => [md5('valid') => false]], false], // Cache hit
+		];
+	}
+
+	/**
+	 * @dataProvider dataMatch
+	 * @param string $pattern
+	 * @param string $subject
+	 * @param array[] $matches
+	 * @param bool $expected
+	 */
+	public function testMatch($pattern, $subject, $matches, $expected) {
+		$check = $this->getCheckMock();
+
+		$this->invokePrivate($check, 'matches', [$matches]);
+
+		$this->assertEquals($expected, $this->invokePrivate($check, 'match', [$pattern, $subject]));
+	}
+}
diff --git a/apps/workflowengine/tests/Check/RequestRemoteAddressTest.php b/apps/workflowengine/tests/Check/RequestRemoteAddressTest.php
new file mode 100644
index 00000000000..efe8f6372dd
--- /dev/null
+++ b/apps/workflowengine/tests/Check/RequestRemoteAddressTest.php
@@ -0,0 +1,138 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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\Tests\Check;
+
+
+class RequestRemoteAddressTest extends \Test\TestCase {
+
+	/** @var \OCP\IRequest|\PHPUnit_Framework_MockObject_MockObject */
+	protected $request;
+
+	/**
+	 * @return \OCP\IL10N|\PHPUnit_Framework_MockObject_MockObject
+	 */
+	protected function getL10NMock() {
+		$l = $this->getMockBuilder('OCP\IL10N')
+			->disableOriginalConstructor()
+			->getMock();
+		$l->expects($this->any())
+			->method('t')
+			->willReturnCallback(function ($string, $args) {
+				return sprintf($string, $args);
+			});
+		return $l;
+	}
+
+	protected function setUp() {
+		parent::setUp();
+
+		$this->request = $this->getMockBuilder('OCP\IRequest')
+			->getMock();
+	}
+
+	public function dataExecuteCheckIPv4() {
+		return [
+			['127.0.0.1/32', '127.0.0.1', true],
+			['127.0.0.1/32', '127.0.0.0', false],
+			['127.0.0.1/31', '127.0.0.0', true],
+			['127.0.0.1/32', '127.0.0.2', false],
+			['127.0.0.1/31', '127.0.0.2', false],
+			['127.0.0.1/30', '127.0.0.2', true],
+		];
+	}
+
+	/**
+	 * @dataProvider dataExecuteCheckIPv4
+	 * @param string $value
+	 * @param string $ip
+	 * @param bool $expected
+	 */
+	public function testExecuteCheckMatchesIPv4($value, $ip, $expected) {
+		$check = new \OCA\WorkflowEngine\Check\RequestRemoteAddress($this->getL10NMock(), $this->request);
+
+		$this->request->expects($this->once())
+			->method('getRemoteAddress')
+			->willReturn($ip);
+
+		$this->assertEquals($expected, $check->executeCheck('matchesIPv4', $value));
+	}
+
+	/**
+	 * @dataProvider dataExecuteCheckIPv4
+	 * @param string $value
+	 * @param string $ip
+	 * @param bool $expected
+	 */
+	public function testExecuteCheckNotMatchesIPv4($value, $ip, $expected) {
+		$check = new \OCA\WorkflowEngine\Check\RequestRemoteAddress($this->getL10NMock(), $this->request);
+
+		$this->request->expects($this->once())
+			->method('getRemoteAddress')
+			->willReturn($ip);
+
+		$this->assertEquals(!$expected, $check->executeCheck('!matchesIPv4', $value));
+	}
+
+	public function dataExecuteCheckIPv6() {
+		return [
+			['::1/128', '::1', true],
+			['::2/128', '::3', false],
+			['::2/127', '::3', true],
+			['::1/128', '::2', false],
+			['::1/127', '::2', false],
+			['::1/126', '::2', true],
+			['1234::1/127', '1234::', true],
+		];
+	}
+
+	/**
+	 * @dataProvider dataExecuteCheckIPv6
+	 * @param string $value
+	 * @param string $ip
+	 * @param bool $expected
+	 */
+	public function testExecuteCheckMatchesIPv6($value, $ip, $expected) {
+		$check = new \OCA\WorkflowEngine\Check\RequestRemoteAddress($this->getL10NMock(), $this->request);
+
+		$this->request->expects($this->once())
+			->method('getRemoteAddress')
+			->willReturn($ip);
+
+		$this->assertEquals($expected, $check->executeCheck('matchesIPv6', $value));
+	}
+
+	/**
+	 * @dataProvider dataExecuteCheckIPv6
+	 * @param string $value
+	 * @param string $ip
+	 * @param bool $expected
+	 */
+	public function testExecuteCheckNotMatchesIPv6($value, $ip, $expected) {
+		$check = new \OCA\WorkflowEngine\Check\RequestRemoteAddress($this->getL10NMock(), $this->request);
+
+		$this->request->expects($this->once())
+			->method('getRemoteAddress')
+			->willReturn($ip);
+
+		$this->assertEquals(!$expected, $check->executeCheck('!matchesIPv6', $value));
+	}
+}
diff --git a/apps/workflowengine/tests/Check/RequestTimeTest.php b/apps/workflowengine/tests/Check/RequestTimeTest.php
new file mode 100644
index 00000000000..c07b4bf8775
--- /dev/null
+++ b/apps/workflowengine/tests/Check/RequestTimeTest.php
@@ -0,0 +1,162 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
+ *
+ * @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\Tests\Check;
+
+
+class RequestTimeTest extends \Test\TestCase {
+
+	/** @var \OCP\AppFramework\Utility\ITimeFactory|\PHPUnit_Framework_MockObject_MockObject */
+	protected $timeFactory;
+
+	/**
+	 * @return \OCP\IL10N|\PHPUnit_Framework_MockObject_MockObject
+	 */
+	protected function getL10NMock() {
+		$l = $this->getMockBuilder('OCP\IL10N')
+			->disableOriginalConstructor()
+			->getMock();
+		$l->expects($this->any())
+			->method('t')
+			->willReturnCallback(function ($string, $args) {
+				return sprintf($string, $args);
+			});
+		return $l;
+	}
+
+	protected function setUp() {
+		parent::setUp();
+
+		$this->timeFactory = $this->getMockBuilder('OCP\AppFramework\Utility\ITimeFactory')
+			->getMock();
+	}
+
+	public function dataExecuteCheck() {
+		return [
+			[json_encode(['08:00 Europe/Berlin', '17:00 Europe/Berlin']), 1467870105, false], // 2016-07-07T07:41:45+02:00
+			[json_encode(['08:00 Europe/Berlin', '17:00 Europe/Berlin']), 1467873705, true], // 2016-07-07T08:41:45+02:00
+			[json_encode(['08:00 Europe/Berlin', '17:00 Europe/Berlin']), 1467902505, true], // 2016-07-07T16:41:45+02:00
+			[json_encode(['08:00 Europe/Berlin', '17:00 Europe/Berlin']), 1467906105, false], // 2016-07-07T17:41:45+02:00
+			[json_encode(['17:00 Europe/Berlin', '08:00 Europe/Berlin']), 1467870105, true], // 2016-07-07T07:41:45+02:00
+			[json_encode(['17:00 Europe/Berlin', '08:00 Europe/Berlin']), 1467873705, false], // 2016-07-07T08:41:45+02:00
+			[json_encode(['17:00 Europe/Berlin', '08:00 Europe/Berlin']), 1467902505, false], // 2016-07-07T16:41:45+02:00
+			[json_encode(['17:00 Europe/Berlin', '08:00 Europe/Berlin']), 1467906105, true], // 2016-07-07T17:41:45+02:00
+
+			[json_encode(['08:00 Australia/Adelaide', '17:00 Australia/Adelaide']), 1467843105, false], // 2016-07-07T07:41:45+09:30
+			[json_encode(['08:00 Australia/Adelaide', '17:00 Australia/Adelaide']), 1467846705, true], // 2016-07-07T08:41:45+09:30
+			[json_encode(['08:00 Australia/Adelaide', '17:00 Australia/Adelaide']), 1467875505, true], // 2016-07-07T16:41:45+09:30
+			[json_encode(['08:00 Australia/Adelaide', '17:00 Australia/Adelaide']), 1467879105, false], // 2016-07-07T17:41:45+09:30
+			[json_encode(['17:00 Australia/Adelaide', '08:00 Australia/Adelaide']), 1467843105, true], // 2016-07-07T07:41:45+09:30
+			[json_encode(['17:00 Australia/Adelaide', '08:00 Australia/Adelaide']), 1467846705, false], // 2016-07-07T08:41:45+09:30
+			[json_encode(['17:00 Australia/Adelaide', '08:00 Australia/Adelaide']), 1467875505, false], // 2016-07-07T16:41:45+09:30
+			[json_encode(['17:00 Australia/Adelaide', '08:00 Australia/Adelaide']), 1467879105, true], // 2016-07-07T17:41:45+09:30
+
+			[json_encode(['08:00 Pacific/Niue', '17:00 Pacific/Niue']), 1467916905, false], // 2016-07-07T07:41:45-11:00
+			[json_encode(['08:00 Pacific/Niue', '17:00 Pacific/Niue']), 1467920505, true], // 2016-07-07T08:41:45-11:00
+			[json_encode(['08:00 Pacific/Niue', '17:00 Pacific/Niue']), 1467949305, true], // 2016-07-07T16:41:45-11:00
+			[json_encode(['08:00 Pacific/Niue', '17:00 Pacific/Niue']), 1467952905, false], // 2016-07-07T17:41:45-11:00
+			[json_encode(['17:00 Pacific/Niue', '08:00 Pacific/Niue']), 1467916905, true], // 2016-07-07T07:41:45-11:00
+			[json_encode(['17:00 Pacific/Niue', '08:00 Pacific/Niue']), 1467920505, false], // 2016-07-07T08:41:45-11:00
+			[json_encode(['17:00 Pacific/Niue', '08:00 Pacific/Niue']), 1467949305, false], // 2016-07-07T16:41:45-11:00
+			[json_encode(['17:00 Pacific/Niue', '08:00 Pacific/Niue']), 1467952905, true], // 2016-07-07T17:41:45-11:00
+		];
+	}
+
+	/**
+	 * @dataProvider dataExecuteCheck
+	 * @param string $value
+	 * @param int $timestamp
+	 * @param bool $expected
+	 */
+	public function testExecuteCheckIn($value, $timestamp, $expected) {
+		$check = new \OCA\WorkflowEngine\Check\RequestTime($this->getL10NMock(), $this->timeFactory);
+
+		$this->timeFactory->expects($this->once())
+			->method('getTime')
+			->willReturn($timestamp);
+
+		$this->assertEquals($expected, $check->executeCheck('in', $value));
+	}
+
+	/**
+	 * @dataProvider dataExecuteCheck
+	 * @param string $value
+	 * @param int $timestamp
+	 * @param bool $expected
+	 */
+	public function testExecuteCheckNotIn($value, $timestamp, $expected) {
+		$check = new \OCA\WorkflowEngine\Check\RequestTime($this->getL10NMock(), $this->timeFactory);
+
+		$this->timeFactory->expects($this->once())
+			->method('getTime')
+			->willReturn($timestamp);
+
+		$this->assertEquals(!$expected, $check->executeCheck('!in', $value));
+	}
+
+	public function dataValidateCheck() {
+		return [
+			['in', '["08:00 Europe/Berlin","17:00 Europe/Berlin"]'],
+			['!in', '["08:00 Europe/Berlin","17:00 America/North_Dakota/Beulah"]'],
+			['in', '["08:00 America/Port-au-Prince","17:00 America/Argentina/San_Luis"]'],
+		];
+	}
+
+	/**
+	 * @dataProvider dataValidateCheck
+	 * @param string $operator
+	 * @param string $value
+	 */
+	public function testValidateCheck($operator, $value) {
+		$check = new \OCA\WorkflowEngine\Check\RequestTime($this->getL10NMock(), $this->timeFactory);
+		$check->validateCheck($operator, $value);
+	}
+
+	public function dataValidateCheckInvalid() {
+		return [
+			['!!in', '["08:00 Europe/Berlin","17:00 Europe/Berlin"]', 1, 'The given operator is invalid'],
+			['in', '["28:00 Europe/Berlin","17:00 Europe/Berlin"]', 2, 'The given time span is invalid'],
+			['in', '["08:00 Europe/Berlin","27:00 Europe/Berlin"]', 2, 'The given time span is invalid'],
+			['in', '["08:00 Europa/Berlin","17:00 Europe/Berlin"]', 3, 'The given start time is invalid'],
+			['in', '["08:00 Europe/Berlin","17:00 Europa/Berlin"]', 4, 'The given end time is invalid'],
+			['in', '["08:00 Europe/Bearlin","17:00 Europe/Berlin"]', 3, 'The given start time is invalid'],
+			['in', '["08:00 Europe/Berlin","17:00 Europe/Bearlin"]', 4, 'The given end time is invalid'],
+		];
+	}
+
+	/**
+	 * @dataProvider dataValidateCheckInvalid
+	 * @param string $operator
+	 * @param string $value
+	 * @param int $exceptionCode
+	 * @param string $exceptionMessage
+	 */
+	public function testValidateCheckInvalid($operator, $value, $exceptionCode, $exceptionMessage) {
+		$check = new \OCA\WorkflowEngine\Check\RequestTime($this->getL10NMock(), $this->timeFactory);
+
+		try {
+			$check->validateCheck($operator, $value);
+		} catch (\UnexpectedValueException $e) {
+			$this->assertEquals($exceptionCode, $e->getCode());
+			$this->assertEquals($exceptionMessage, $e->getMessage());
+		}
+	}
+}