Bug 1735803 - Convert server hostname to lowercase before connecting. r=mkmelin

Differential Revision: https://phabricator.services.mozilla.com/D158179

mailnews/addrbook/modules/LDAPClient.jsm

@@ -41,12 +41,13 @@ class LDAPClient {
   }
 
   connect() {
+    let hostname = this._host.toLowerCase();
     this._logger.debug(
-      `Connecting to ${this._useSecureTransport ? "ldaps" : "ldap"}://${
-        this._host
-      }:${this._port}`
+      `Connecting to ${
+        this._useSecureTransport ? "ldaps" : "ldap"
+      }://${hostname}:${this._port}`
     );
-    this._socket = new TCPSocket(this._host, this._port, {
+    this._socket = new TCPSocket(hostname, this._port, {
       binaryType: "arraybuffer",
       useSecureTransport: this._useSecureTransport,
     });

mailnews/compose/src/SmtpClient.jsm

@@ -113,10 +113,11 @@ class SmtpClient {
    * Initiate a connection to the server
    */
   connect() {
+    let hostname = this._server.hostname.toLowerCase();
     let port = this._server.port || (this.options.requireTLS ? 465 : 587);
-    this.logger.debug(`Connecting to smtp://${this._server.hostname}:${port}`);
+    this.logger.debug(`Connecting to smtp://${hostname}:${port}`);
     this._secureTransport = this.options.requireTLS;
-    this.socket = new TCPSocket(this._server.hostname, port, {
+    this.socket = new TCPSocket(hostname, port, {
       binaryType: "arraybuffer",
       useSecureTransport: this._secureTransport,
     });

mailnews/imap/src/ImapClient.jsm

@@ -99,12 +99,11 @@ class ImapClient {
       // Reuse the connection.
       this.onReady();
     } else {
-      this._logger.debug(
-        `Connecting to ${this._server.hostName}:${this._server.port}`
-      );
+      let hostname = this._server.hostName.toLowerCase();
+      this._logger.debug(`Connecting to ${hostname}:${this._server.port}`);
       this._capabilities = null;
       this._secureTransport = this._server.socketType == Ci.nsMsgSocketType.SSL;
-      this._socket = new TCPSocket(this._server.hostName, this._server.port, {
+      this._socket = new TCPSocket(hostname, this._server.port, {
         binaryType: "arraybuffer",
         useSecureTransport: this._secureTransport,
       });

mailnews/local/src/Pop3Client.jsm

@@ -130,15 +130,14 @@ class Pop3Client {
    * Initiate a connection to the server
    */
   connect() {
-    this._logger.debug(
-      `Connecting to pop://${this._server.hostName}:${this._server.port}`
-    );
+    let hostname = this._server.hostName.toLowerCase();
+    this._logger.debug(`Connecting to pop://${hostname}:${this._server.port}`);
     this.runningUri
       .QueryInterface(Ci.nsIMsgMailNewsUrl)
       .SetUrlState(true, Cr.NS_OK);
     this._server.serverBusy = true;
     this._secureTransport = this._server.socketType == Ci.nsMsgSocketType.SSL;
-    this._socket = new TCPSocket(this._server.hostName, this._server.port, {
+    this._socket = new TCPSocket(hostname, this._server.port, {
       binaryType: "arraybuffer",
       useSecureTransport: this._secureTransport,
     });

mailnews/news/src/NntpClient.jsm

@@ -93,13 +93,14 @@ class NntpClient {
       this.onOpen();
     } else {
       // Start a new connection.
+      let hostname = this._server.hostName.toLowerCase();
       let useSecureTransport = this._server.isSecure;
       this._logger.debug(
-        `Connecting to ${useSecureTransport ? "snews" : "news"}://${
-          this._server.hostName
-        }:${this._server.port}`
+        `Connecting to ${useSecureTransport ? "snews" : "news"}://${hostname}:${
+          this._server.port
+        }`
       );
-      this._socket = new TCPSocket(this._server.hostName, this._server.port, {
+      this._socket = new TCPSocket(hostname, this._server.port, {
         binaryType: "arraybuffer",
         useSecureTransport,
       });