build: luci.mk: gracefully handle missing or unversioned po subdirectories

Fixes: #3911
Fixes: 9d8e99f9b build: gracefully handle non-Git source trees
Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 44 insertions, 4 deletions

diff --git a/modules/luci-base/htdocs/luci-static/resources/luci.js b/modules/luci-base/htdocs/luci-static/resources/luci.js
index 11ca2fdfc..63c9d9ee6 100644
--- a/modules/luci-base/htdocs/luci-static/resources/luci.js
+++ b/modules/luci-base/htdocs/luci-static/resources/luci.js
@@ -2051,7 +2051,15 @@
 		 * methods are overwritten with `null`.
 		 */
 		addFooter: function() {
-			var footer = E([]);
+			var footer = E([]),
+			    vp = document.getElementById('view'),
+			    readonly = true;
+
+			vp.querySelectorAll('.cbi-map').forEach(function(map) {
+				var m = DOM.findClassInstance(map);
+				if (m && !m.readonly)
+					readonly = false;
+			});
 
 			var saveApplyBtn = this.handleSaveApply ? new L.ui.ComboButton('0', {
 				0: [ _('Save & Apply') ],
@@ -2061,7 +2069,8 @@
 					0: 'btn cbi-button cbi-button-apply important',
 					1: 'btn cbi-button cbi-button-negative important'
 				},
-				click: L.ui.createHandlerFn(this, 'handleSaveApply')
+				click: L.ui.createHandlerFn(this, 'handleSaveApply'),
+				disabled: readonly || null
 			}).render() : E([]);
 
 			if (this.handleSaveApply || this.handleSave || this.handleReset) {
@@ -2069,11 +2078,13 @@
 					saveApplyBtn, ' ',
 					this.handleSave ? E('button', {
 						'class': 'cbi-button cbi-button-save',
-						'click': L.ui.createHandlerFn(this, 'handleSave')
+						'click': L.ui.createHandlerFn(this, 'handleSave'),
+						'disabled': readonly || null
 					}, [ _('Save') ]) : '', ' ',
 					this.handleReset ? E('button', {
 						'class': 'cbi-button cbi-button-reset',
-						'click': L.ui.createHandlerFn(this, 'handleReset')
+						'click': L.ui.createHandlerFn(this, 'handleReset'),
+						'disabled': readonly || null
 					}, [ _('Reset') ]) : ''
 				]));
 			}
@@ -3063,6 +3074,35 @@
 		},
 
 		/**
+		 * Check whether the current session has been granted the given ACL
+		 * group permissions.
+		 *
+		 * @param {string} aclGroupName
+		 * The ACL group name to check.
+		 *
+		 * @return {boolean|null}
+		 * Returns `null` if the session does not have the specified grant,
+		 * returns `false` if the permissions are granted readonly or
+		 * `true` if they're granted read/write.
+		 */
+		hasAcl: function(aclGroupName) {
+			if (!this.isObject(this.env.accessgroups) ||
+			    !this.env.accessgroups.hasOwnProperty(aclGroupName) ||
+			    !Array.isArray(this.env.accessgroups[aclGroupName]))
+				return null;
+
+			for (var i = 0; i < this.env.accessgroups[aclGroupName].length; i++)
+				if (this.env.accessgroups[aclGroupName][i] == 'write')
+					return true;
+
+			for (var i = 0; i < this.env.accessgroups[aclGroupName].length; i++)
+				if (this.env.accessgroups[aclGroupName][i] == 'read')
+					return false;
+
+			return null;
+		},
+
+		/**
 		 * Deprecated wrapper around {@link LuCI.poll.remove Poll.remove()}.
 		 *
 		 * @deprecated