b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
85 lines
2.6 KiB
JavaScript
Executable file
85 lines
2.6 KiB
JavaScript
Executable file
define(['logic', './client', 'exports'], function(logic, client, exports) {
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var scope = logic.scope('SmtpProber');
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/**
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* Validate that we find an SMTP server using the connection info
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* and that it seems to like our credentials.
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*
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* The process here is in two steps: First, connect to the server
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* and make sure that we can authenticate properly. Then, if that
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* succeeds, we send a "MAIL FROM:<our address>" line to see if
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* the server will reject the e-mail address, followed by "RCPT
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* TO" for the same purpose. This could fail if the user uses
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* manual setup and gets everything right except for their e-mail
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* address. We want to catch this error before they complete
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* account setup; if we don't, they'll be left with an account
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* that can't send e-mail, and we currently don't allow them to
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* change their address after setup.
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*/
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exports.probeAccount = function(credentials, connInfo) {
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logic(scope, 'connecting', {
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_credentials: credentials,
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connInfo: connInfo
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});
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var conn;
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return client.createSmtpConnection(
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credentials,
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connInfo,
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function onCredentialsUpdated() {
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// Normally we shouldn't see a request to update credentials
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// here, as the caller should have already passed a valid
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// accessToken during account setup. This might indicate a
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// problem with our OAUTH handling, so log it just in case.
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logic(scope, 'credentials-updated');
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}
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).then(function(newConn) {
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conn = newConn;
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return verifyAddress(conn, connInfo.emailAddress);
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}).then(function() {
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logic(scope, 'success');
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conn.close();
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return conn;
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}).catch(function(err) {
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var errorString = client.analyzeSmtpError(
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conn, err, /* wasSending: */ false);
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if (conn) {
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conn.close();
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}
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logic(scope, 'error', {
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error: errorString,
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connInfo: connInfo
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});
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throw errorString;
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});
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};
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/**
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* Send the envelope; the server might proactively warn us that we
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* used an invalid email address.
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*
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* @return {Promise}
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* resolve => (null)
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* reject => {Object} some sort of error
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*/
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function verifyAddress(conn, emailAddress) {
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logic(scope, 'checking-address-validity', {
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ns: 'SmtpProber',
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_address: emailAddress
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});
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return new Promise(function(resolve, reject) {
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conn.useEnvelope({
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from: emailAddress,
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to: [emailAddress]
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});
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conn.onready = function() { resolve(); };
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conn.onerror = function(err) { reject(err); };
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});
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}
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}); // end define
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