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assets/webapps/email.gaiamobile.org/js/ext/smtp/probe.js

@@ -0,0 +1,52 @@
+define([
+    'logic',
+    './client',
+    'exports'
+], function (logic, client, exports) {
+    var scope = logic.scope('SmtpProber');
+    exports.probeAccount = function (credentials, connInfo) {
+        logic(scope, 'connecting', {
+            _credentials: credentials,
+            connInfo: connInfo
+        });
+        var conn;
+        return client.createSmtpConnection(credentials, connInfo, function onCredentialsUpdated() {
+            logic(scope, 'credentials-updated');
+        }).then(function (newConn) {
+            conn = newConn;
+            return verifyAddress(conn, connInfo.emailAddress);
+        }).then(function () {
+            logic(scope, 'success');
+            conn.close();
+            return conn;
+        }).catch(function (err) {
+            var errorString = client.analyzeSmtpError(conn, err, false);
+            if (conn) {
+                conn.close();
+            }
+            logic(scope, 'error', {
+                error: errorString,
+                connInfo: connInfo
+            });
+            throw errorString;
+        });
+    };
+    function verifyAddress(conn, emailAddress) {
+        logic(scope, 'checking-address-validity', {
+            ns: 'SmtpProber',
+            _address: emailAddress
+        });
+        return new Promise(function (resolve, reject) {
+            conn.useEnvelope({
+                from: emailAddress,
+                to: [emailAddress]
+            });
+            conn.onready = function () {
+                resolve();
+            };
+            conn.onerror = function (err) {
+                reject(err);
+            };
+        });
+    }
+});