moodlehq · jleyva · Feb 13, 2017 · Feb 9, 2017
diff --git a/www/addons/messages/controllers/discussion.js b/www/addons/messages/controllers/discussion.js
@@ -148,18 +148,14 @@ angular.module('mm.addons.messages')
 
                     notifyNewMessage();
                 });
-            }, function(error) {
+            }).catch(function(error) {
                 messagesBeingSent--;
 
                 // Only close the keyboard if an error happens, we want the user to be able to send multiple
                 // messages without the keyboard being closed.
                 $mmApp.closeKeyboard();
 
-                if (typeof error === 'string') {
-                    $mmUtil.showErrorModal(error);
-                } else {
-                    $mmUtil.showErrorModal('mma.messages.messagenotsent', true);
-                }
+                $mmUtil.showErrorModalDefault(error, 'mma.messages.messagenotsent', true);
                 $scope.messages.splice($scope.messages.indexOf(message), 1);
             });
         });
@@ -570,11 +566,7 @@ angular.module('mm.addons.messages')
                 $scope.messages.splice(index, 1); // Remove message from the list without having to wait for re-fetch.
                 fetchMessages(); // Re-fetch messages to update cached data.
             }).catch(function(error) {
-                if (typeof error === 'string') {
-                    $mmUtil.showErrorModal(error);
-                } else {
-                    $mmUtil.showErrorModal('mma.messages.errordeletemessage', true);
-                }
+                $mmUtil.showErrorModalDefault(error, 'mma.messages.errordeletemessage', true);
             }).finally(function() {
                 modal.dismiss();
             });

diff --git a/www/addons/messages/services/messages.js b/www/addons/messages/services/messages.js
@@ -21,7 +21,7 @@ angular.module('mm.addons.messages')
  * @ngdoc service
  * @name $mmaMessages
  */
-.factory('$mmaMessages', function($mmSite, $mmSitesManager, $log, $q, $mmUser, $mmaMessagesOffline, $mmApp,
+.factory('$mmaMessages', function($mmSite, $mmSitesManager, $log, $q, $mmUser, $mmaMessagesOffline, $mmApp, $mmUtil,
             mmaMessagesNewMessageEvent, mmaMessagesLimitMessages) {
     $log = $log.getInstance('$mmaMessages');
 
@@ -1092,7 +1092,7 @@ angular.module('mm.addons.messages')
         return self.sendMessagesOnline(messages, siteId).catch(function(error) {
             return $q.reject({
                 error: error,
-                wserror: false
+                wserror: $mmUtil.isWebServiceError(error)
             });
         }).then(function(response) {
             if (response && response[0] && response[0].msgid === -1) {
@@ -1122,8 +1122,6 @@ angular.module('mm.addons.messages')
      *                           have been sent, the resolve param can contain errors for messages not sent.
      */
     self.sendMessagesOnline = function(messages, siteId) {
-        siteId = siteId || $mmSite.getId();
-
         return $mmSitesManager.getSite(siteId).then(function(site) {
             var data = {
                     messages: messages

diff --git a/www/core/lang/en.json b/www/core/lang/en.json
@@ -179,13 +179,15 @@
     "twoparagraphs": "{{p1}}<br><br>{{p2}}",
     "tryagain": "Try again",
     "uhoh": "Uh oh!",
+    "unicodenotsupported" : "Unicode text like emojis are not supported on this site, text will be sent removing those characters.",
+    "unicodenotsupportedcleanerror" : "Empty text was found when cleaning Unicode chars.",
+    "unknown": "Unknown",
+    "unlimited": "Unlimited",
+    "unzipping": "Unzipping",
     "upgraderunning": "Site is being upgraded, please retry later.",
     "unexpectederror": "Unexepected error. Please close and reopen the application to try again",
     "userdeleted": "This user account has been deleted",
     "userdetails": "User details",
-    "unknown": "Unknown",
-    "unlimited": "Unlimited",
-    "unzipping": "Unzipping",
     "usernotfullysetup": "User not fully set-up",
     "users": "Users",
     "view": "View",

diff --git a/www/core/lib/sitesfactory.js b/www/core/lib/sitesfactory.js
@@ -121,7 +121,7 @@ angular.module('mm.core')
             mmCoreWSPrefix, mmCoreSessionExpired, $mmEvents, mmCoreEventSessionExpired, mmCoreUserDeleted, mmCoreEventUserDeleted,
             $mmText, $translate, mmCoreConfigConstants, mmCoreUserPasswordChangeForced, mmCoreEventPasswordChangeForced,
             mmCoreLoginTokenChangePassword, mmCoreSecondsMinute, mmCoreUserNotFullySetup, mmCoreEventUserNotFullySetup,
-            mmCoreSitePolicyNotAgreed, mmCoreEventSitePolicyNotAgreed) {
+            mmCoreSitePolicyNotAgreed, mmCoreEventSitePolicyNotAgreed, mmCoreUnicodeNotSupported) {
 
         $log = $log.getInstance('$mmSite');
 
@@ -182,6 +182,7 @@ angular.module('mm.core')
             this.privateToken = privateToken;
             this.config = config;
             this.loggedOut = !!loggedOut;
+            this.cleanUnicode = false;
 
             if (this.id) {
                 this.db = $mmDB.getDB('Site-' + this.id, siteSchema, dboptions);
@@ -423,6 +424,9 @@ angular.module('mm.core')
                 saveToCache: 0
             };
 
+            // Reset clean Unicode to check if it's supported again.
+            site.cleanUnicode = false;
+
             site.read('core_webservice_get_site_info', {}, preSets).then(deferred.resolve, function(error) {
                 site.read('moodle_webservice_get_siteinfo', {}, preSets).then(deferred.resolve, function(error) {
                     deferred.reject(error);
@@ -537,6 +541,16 @@ angular.module('mm.core')
             preSets = angular.copy(preSets) || {};
             preSets.wstoken = site.token;
             preSets.siteurl = site.siteurl;
+            preSets.cleanUnicode = site.cleanUnicode;
+
+            if (preSets.cleanUnicode && $mmText.hasUnicodeData(data)) {
+                // Data will be cleaned, notify the user.
+                // @todo: Detect if the call is a syncing call and not notify.
+                $mmUtil.showToast('mm.core.unicodenotsupported', true, 3000);
+            } else {
+                // No need to clean data in this call.
+                preSets.cleanUnicode = false;
+            }
 
             // Enable text filtering by default.
             data.moodlewssettingfilter = preSets.filter === false ? false : true;
@@ -597,6 +611,14 @@ angular.module('mm.core')
                         // Site policy not agreed, trigger event.
                         $mmEvents.trigger(mmCoreEventSitePolicyNotAgreed, site.id);
                         return $mmLang.translateAndReject('mm.login.sitepolicynotagreederror');
+                    } else if (error === mmCoreUnicodeNotSupported) {
+                        if (!site.cleanUnicode) {
+                            // Try again cleaning unicode.
+                            site.cleanUnicode = true;
+                            return site.request(method, data, preSets);
+                        }
+                        // This should not happen.
+                        return $mmLang.translateAndReject('mm.core.unicodenotsupported');
                     } else if (typeof preSets.emergencyCache !== 'undefined' && !preSets.emergencyCache) {
                         $log.debug('WS call ' + method + ' failed. Emergency cache is forbidden, rejecting.');
                         return $q.reject(error);

diff --git a/www/core/lib/text.js b/www/core/lib/text.js
@@ -579,5 +579,66 @@ angular.module('mm.core')
         return /<[a-z][\s\S]*>/i.test(text);
     };
 
+    /**
+     * Check if a text contains Unicode long chars.
+     * Using as threshold Hex value D800
+     *
+     * @module mm.core
+     * @ngdoc method
+     * @name $mmText#hasUnicode
+     * @param  {String} text Text to check.
+     * @return {Boolean}     True if has Unicode chars, false otherwise.
+     */
+    self.hasUnicode = function(text) {
+        for (var x = 0; x < text.length; x++) {
+            if (text.charCodeAt(x) > 55295) {
+                return true;
+            }
+        }
+        return false;
+    };
+
+    /**
+     * Check if an object has any long Unicode char.
+     *
+     * @module mm.core
+     * @ngdoc method
+     * @name $mmText#hasUnicodeData
+     * @param  {Mixed}  data  Object to be checked.
+     * @return {Boolean}      If the data has any long Unicode char on it.
+     */
+    self.hasUnicodeData = function(data) {
+        for (var el in data) {
+            if (angular.isObject(data[el])) {
+                if (self.hasUnicodeData(data[el])) {
+                    return true;
+                }
+            } else if (typeof data[el] == "string" && self.hasUnicode(data[el])) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Strip Unicode long char of a given text.
+     * Using as threshold Hex value D800
+     *
+     * @module mm.core
+     * @ngdoc method
+     * @name $mmText#stripUnicode
+     * @param  {String} text Text to check.
+     * @return {String}      Without the Unicode chars.
+     */
+    self.stripUnicode = function(text) {
+        var stripped = "";
+        for (var x = 0; x < text.length; x++) {
+            if (text.charCodeAt(x) <= 55295){
+                stripped += text.charAt(x);
+            }
+        }
+        return stripped;
+    };
+
     return self;
 });
diff --git a/www/core/lib/util.js b/www/core/lib/util.js
@@ -1945,7 +1945,8 @@ angular.module('mm.core')
                 $translate.instant('mm.core.errorinvalidresponse'),
                 $translate.instant('mm.core.sitemaintenance'),
                 $translate.instant('mm.core.upgraderunning'),
-                $translate.instant('mm.core.nopasswordchangeforced')
+                $translate.instant('mm.core.nopasswordchangeforced'),
+                $translate.instant('mm.core.unicodenotsupported')
             ];
             return error && localErrors.indexOf(error) == -1;
         };

diff --git a/www/core/lib/ws.js b/www/core/lib/ws.js
@@ -25,8 +25,8 @@ angular.module('mm.core')
  * @name $mmWS
  */
 .factory('$mmWS', function($http, $q, $log, $mmLang, $cordovaFileTransfer, $mmApp, $mmFS, mmCoreSessionExpired, $translate, $window,
-            mmCoreUserDeleted, md5, $timeout, mmWSTimeout, mmCoreUserPasswordChangeForced, mmCoreUserNotFullySetup,
-            mmCoreSitePolicyNotAgreed) {
+            mmCoreUserDeleted, md5, $timeout, mmWSTimeout, mmCoreUserPasswordChangeForced, mmCoreUserNotFullySetup, $mmText,
+            mmCoreSitePolicyNotAgreed, mmCoreUnicodeNotSupported) {
 
     $log = $log.getInstance('$mmWS');
 
@@ -49,14 +49,13 @@ angular.module('mm.core')
      *                    - wstoken string The Webservice token.
      *                    - responseExpected boolean Defaults to true. Set to false when the expected response is null.
      *                    - typeExpected string Defaults to 'object'. Use it when you expect a type that's not an object|array.
+     *                    - cleanUnicode boolean Defaults to false. Clean multibyte Unicode chars from data.
      * @return {Promise} Promise resolved with the response data in success and rejected with the error message if it fails.
      */
     self.call = function(method, data, preSets) {
 
         var siteurl;
 
-        data = convertValuesToString(data);
-
         if (typeof preSets == 'undefined' || preSets === null ||
                 typeof preSets.wstoken == 'undefined' || typeof preSets.siteurl == 'undefined') {
             return $mmLang.translateAndReject('mm.core.unexpectederror');
@@ -69,6 +68,13 @@ angular.module('mm.core')
             preSets.responseExpected = true;
         }
 
+        try {
+            data = convertValuesToString(data, preSets.cleanUnicode);
+        } catch (e) {
+           // Empty cleaned text found.
+           return $mmLang.translateAndReject('mm.core.unicodenotsupportedcleanerror');
+        }
+
         data.wsfunction = method;
         data.wstoken = preSets.wstoken;
         siteurl = preSets.siteurl + '/webservice/rest/server.php?moodlewsrestformat=json';
@@ -133,6 +139,8 @@ angular.module('mm.core')
                     return $q.reject(mmCoreUserNotFullySetup);
                 } else if (data.errorcode === 'sitepolicynotagreed') {
                     return $q.reject(mmCoreSitePolicyNotAgreed);
+                } else if (data.errorcode === 'dmlwriteexception' && $mmText.hasUnicodeData(ajaxData)) {
+                    return $q.reject(mmCoreUnicodeNotSupported);
                 } else {
                     return $q.reject(data.message);
                 }
@@ -280,19 +288,27 @@ angular.module('mm.core')
      * Converts an objects values to strings where appropriate.
      * Arrays (associative or otherwise) will be maintained.
      *
-     * @param {Object} data The data that needs all the non-object values set to strings.
+     * @param {Object}  data            The data that needs all the non-object values set to strings.
+     * @param {Boolean} stripUnicode    If Unicode long chars need to be stripped.
      * @return {Object} The cleaned object, with multilevel array and objects preserved.
      */
-    function convertValuesToString(data) {
+    function convertValuesToString(data, stripUnicode) {
         var result = [];
         if (!angular.isArray(data) && angular.isObject(data)) {
             result = {};
         }
         for (var el in data) {
             if (angular.isObject(data[el])) {
-                result[el] = convertValuesToString(data[el]);
+                result[el] = convertValuesToString(data[el], stripUnicode);
             } else {
-                result[el] = data[el] + '';
+                if (typeof data[el] == "string") {
+                    result[el] = stripUnicode ? $mmText.stripUnicode(data[el]) : data[el];
+                    if (stripUnicode && data[el] != result[el] && result[el].trim().length == 0) {
+                        throw new Exception();
+                    }
+                } else {
+                    result[el] = data[el] + '';
+                }
             }
         }
         return result;

diff --git a/www/core/main.js b/www/core/main.js
@@ -19,6 +19,7 @@ angular.module('mm.core', ['pascalprecht.translate'])
 .constant('mmCoreUserPasswordChangeForced', 'mmCoreUserPasswordChangeForced')
 .constant('mmCoreUserNotFullySetup', 'mmCoreUserNotFullySetup')
 .constant('mmCoreSitePolicyNotAgreed', 'mmCoreSitePolicyNotAgreed')
+.constant('mmCoreUnicodeNotSupported', 'mmCoreUnicodeNotSupported')
 .constant('mmCoreSecondsYear', 31536000)
 .constant('mmCoreSecondsDay', 86400)
 .constant('mmCoreSecondsHour', 3600)

diff --git a/www/core/scss/styles.scss b/www/core/scss/styles.scss
@@ -1099,6 +1099,7 @@ mm-timer {
   .loading {
     padding: 10px 20px;
     border-radius: 25px;
+    margin: 0 10px;
   }
 }