Network config: Fix up network-property-list and support string arrays

In preparation for supporting OpenVPN.ExtraHosts, we need to support
string arrays in network-property-list. Some issues with policy
indicators were discovered as well.

This CL:
* Adds support for an editable StringArray type.
* Only shows policy indicators for fields that may be user editable.
  (Other indicators just provide noise).
* Treats properties with no entry in policy controlled configurations
  as not user editable.

Bug: 742666,819837
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: I601e4cc0839bd1560bd1dc5af099aba3b19623dc
Reviewed-on: https://chromium-review.googlesource.com/955934
Commit-Queue: Steven Bennetts <stevenjb@chromium.org>
Reviewed-by: Toni Barzic <tbarzic@chromium.org>
Cr-Commit-Position: refs/heads/master@{#542582}

ui/webui/resources/cr_components/chromeos/network/network_property_list.html

@@ -29,36 +29,33 @@
         filter="[[computeFilter_(prefix, propertyDict, editFieldTypes)]]">
       <div class="property-box single-column two-line stretch">
         <!-- Property label -->
-        <div>[[getPropertyLabel_(item, prefix)]]</div>
+        <div class="layout horizontal center">
+          <div>[[getPropertyLabel_(item, prefix)]]</div>
+          <template is="dom-if" restamp
+              if="[[isEditTypeAny_(item, editFieldTypes)]]">
+            <cr-policy-network-indicator
+                property="[[getProperty_(item, propertyDict)]]">
+            </cr-policy-network-indicator>
+          </template>
+        </div>
         <!-- Uneditable property value -->
-        <div class="layout horizontal"
-            hidden="[[isEditable_(item, '', propertyDict, editFieldTypes)]]">
+        <template is="dom-if" restamp
+            if="[[!isEditable_(item, propertyDict, editFieldTypes)]]">
           <div class="secondary">
             [[getPropertyValue_(item, prefix, propertyDict)]]
           </div>
-          <cr-policy-network-indicator
-              property="[[getProperty_(item, propertyDict)]]">
-          </cr-policy-network-indicator>
-        </div>
+        </template>
         <!-- Editable String property value -->
-        <template is="dom-if" if="[[isEditable_(
-            item, 'String', propertyDict, editFieldTypes)]]">
+        <template is="dom-if" restamp
+            if="[[isEditTypeInput_(item, propertyDict, editFieldTypes)]]">
           <paper-input-container no-label-float>
             <input id="[[item]]" is="iron-input" slot="input"
+                type="[[getEditInputType_(item, editFieldTypes)]]"
                 value="[[getPropertyValue_(item, prefix, propertyDict)]]"
                 on-change="onValueChange_">
           </paper-input-container>
         </template>
-        <!-- Editable Password property value -->
-        <template is="dom-if" if="[[isEditable_(
-            item, 'Password', propertyDict, editFieldTypes)]]">
-          <paper-input-container no-label-float>
-            <input id="[[item]]" is="iron-input" type="password" slot="input"
-                value="[[getPropertyValue_(item, prefix, propertyDict)]]"
-                on-change="onValueChange_">
-          </paper-input-container>
-        </template>
-        <!-- TODO(stevenjb): Support other types. -->
+        <!-- TODO(stevenjb): Support other types (number, boolean)? -->
       </div>
     </template>
   </template>

ui/webui/resources/cr_components/chromeos/network/network_property_list.js

@@ -34,6 +34,8 @@ Polymer({
      * Edit type of editable fields. May contain a property for any field in
      * |fields|. Other properties will be ignored. Property values can be:
      *   'String' - A text input will be displayed.
+     *   'StringArray' - A text input will be displayed that expects a comma
+     *       separated list of strings.
      *   'Password' - A string with input type = password.
      *   TODO(stevenjb): Support types with custom validation, e.g. IPAddress.
      *   TODO(stevenjb): Support 'Number'.
@@ -64,17 +66,17 @@ Polymer({
   onValueChange_: function(event) {
     if (!this.propertyDict)
       return;
-    var field = event.target.id;
-    var curValue = this.get(field, this.propertyDict);
-    if (typeof curValue == 'object') {
+    var key = event.target.id;
+    var curValue = this.get(key, this.propertyDict);
+    if (typeof curValue == 'object' && !Array.isArray(curValue)) {
       // Extract the property from an ONC managed dictionary.
       curValue = CrOnc.getActiveValue(
           /** @type {!CrOnc.ManagedProperty} */ (curValue));
     }
-    var newValue = event.target.value;
+    var newValue = this.getValueFromEditField_(key, event.target.value);
     if (newValue == curValue)
       return;
-    this.fire('property-change', {field: field, value: newValue});
+    this.fire('property-change', {field: key, value: newValue});
   },
 
   /**
@@ -119,19 +121,68 @@ Polymer({
 
   /**
    * @param {string} key The property key.
-   * @param {string} type The field type.
    * @param {!Object} propertyDict
-   * @param {!Object} editFieldTypes
    * @return {boolean}
    * @private
    */
-  isEditable_: function(key, type, propertyDict, editFieldTypes) {
+  isPropertyEditable_: function(key, propertyDict) {
     var property = /** @type {!CrOnc.ManagedProperty|undefined} */ (
         this.get(key, propertyDict));
-    if (this.isNetworkPolicyEnforced(property))
+    if (property === undefined) {
+      // Unspecified properties in policy configurations are not user
+      // modifiable. https://crbug.com/819837.
+      var source = propertyDict.Source;
+      return source != 'UserPolicy' && source != 'DevicePolicy';
+    }
+    return !this.isNetworkPolicyEnforced(property);
+  },
+
+  /**
+   * @param {string} key The property key.
+   * @param {!Object} editFieldTypes
+   * @return {boolean}
+   * @private
+   */
+  isEditTypeAny_: function(key, editFieldTypes) {
+    return editFieldTypes[key] !== undefined;
+  },
+
+  /**
+   * @param {string} key The property key.
+   * @param {!Object} propertyDict
+   * @param {!Object} editFieldTypes
+   * @return {boolean}
+   * @private
+   */
+  isEditTypeInput_: function(key, propertyDict, editFieldTypes) {
+    if (!this.isPropertyEditable_(key, propertyDict))
       return false;
     var editType = editFieldTypes[key];
-    return editType !== undefined && (type == '' || editType == type);
+    return editType == 'String' || editType == 'StringArray' ||
+        editType == 'Password';
+  },
+
+  /**
+   * @param {string} key The property key.
+   * @param {!Object} editFieldTypes
+   * @return {string}
+   * @private
+   */
+  getEditInputType_: function(key, editFieldTypes) {
+    return editFieldTypes[key] == 'Password' ? 'password' : 'text';
+  },
+
+  /**
+   * @param {string} key The property key.
+   * @param {!Object} propertyDict
+   * @param {!Object} editFieldTypes
+   * @return {boolean}
+   * @private
+   */
+  isEditable_: function(key, propertyDict, editFieldTypes) {
+    if (!this.isPropertyEditable_(key, propertyDict))
+      return false;
+    return this.isEditTypeAny_(key, editFieldTypes);
   },
 
   /**
@@ -141,7 +192,13 @@ Polymer({
    * @private
    */
   getProperty_: function(key, propertyDict) {
-    return this.get(key, propertyDict);
+    var property = this.get(key, propertyDict);
+    if (property === undefined && propertyDict.Source) {
+      // Provide an empty property object with the network policy source.
+      // See https://crbug.com/819837 for more info.
+      return {Effective: propertyDict.Source};
+    }
+    return property;
   },
 
   /**
@@ -155,16 +212,20 @@ Polymer({
     var value = this.get(key, propertyDict);
     if (value === undefined)
       return '';
-    if (typeof value == 'object') {
+    if (typeof value == 'object' && !Array.isArray(value)) {
       // Extract the property from an ONC managed dictionary
       value =
           CrOnc.getActiveValue(/** @type {!CrOnc.ManagedProperty} */ (value));
     }
+    if (Array.isArray(value))
+      return value.join(', ');
+
     var customValue = this.getCustomPropertyValue_(key, value);
     if (customValue)
       return customValue;
     if (typeof value == 'number' || typeof value == 'boolean')
       return value.toString();
+
     assert(typeof value == 'string');
     var valueStr = /** @type {string} */ (value);
     var oncKey = 'Onc' + prefix + key;
@@ -175,6 +236,20 @@ Polymer({
     return valueStr;
   },
 
+  /**
+   * Converts edit field values to the correct edit type.
+   * @param {string} key The property key.
+   * @param {*} fieldValue The value from the field.
+   * @return {*}
+   * @private
+   */
+  getValueFromEditField_(key, fieldValue) {
+    var editType = this.editFieldTypes[key];
+    if (editType == 'StringArray')
+      return fieldValue.toString().split(/, */);
+    return fieldValue;
+  },
+
   /**
    * @param {string} key The property key.
    * @param {*} value The property value.

ui/webui/resources/cr_elements/chromeos/network/cr_onc_types.js

@@ -46,7 +46,7 @@ CrOnc.NetworkStateProperties;
 /** @typedef {chrome.networkingPrivate.ManagedProperties} */
 CrOnc.NetworkProperties;
 
-/** @typedef {string|number|boolean|Object|Array<Object>} */
+/** @typedef {string|number|boolean|Array<string>|Object|Array<Object>} */
 CrOnc.NetworkPropertyType;
 
 /**
@@ -227,7 +227,7 @@ CrOnc.getActiveValue = function(property) {
   if (property == undefined)
     return undefined;
 
-  if (typeof property != 'object') {
+  if (typeof property != 'object' || Array.isArray(property)) {
     console.error(
         'getActiveValue called on non object: ' + JSON.stringify(property));
     return undefined;