1 files changed, 71 insertions, 0 deletions
diff --git a/comm/mailnews/base/src/MailChannel.sys.mjs b/comm/mailnews/base/src/MailChannel.sys.mjs
new file mode 100644
index 0000000000..a5fbf9ee75
--- /dev/null
+++ b/comm/mailnews/base/src/MailChannel.sys.mjs
@@ -0,0 +1,71 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/**
+ * @see {nsIMailChannel}
+ */
+export class MailChannel {
+  _headerNames = [];
+  _headerValues = [];
+  _attachments = [];
+  _mailCharacterSet = null;
+  _progressListener = null;
+
+  addHeaderFromMIME(name, value) {
+    this._headerNames.push(name);
+    this._headerValues.push(value);
+  }
+
+  get headerNames() {
+    return this._headerNames;
+  }
+
+  get headerValues() {
+    return this._headerValues;
+  }
+
+  handleAttachmentFromMIME(contentType, url, displayName, uri, notDownloaded) {
+    let attachment = Cc["@mozilla.org/hash-property-bag;1"].createInstance(
+      Ci.nsIWritablePropertyBag2
+    );
+    attachment.setPropertyAsAUTF8String("contentType", contentType);
+    attachment.setPropertyAsAUTF8String("url", url);
+    attachment.setPropertyAsAUTF8String("displayName", displayName);
+    attachment.setPropertyAsAUTF8String("uri", uri);
+    attachment.setPropertyAsBool("notDownloaded", notDownloaded);
+    this._attachments.push(attachment);
+  }
+
+  addAttachmentFieldFromMIME(field, value) {
+    let attachment = this._attachments[this._attachments.length - 1];
+    attachment.setPropertyAsAUTF8String(field, value);
+  }
+
+  get attachments() {
+    return this._attachments.slice();
+  }
+
+  get mailCharacterSet() {
+    return this._mailCharacterSet;
+  }
+
+  set mailCharacterSet(value) {
+    let ccm = Cc["@mozilla.org/charset-converter-manager;1"].getService(
+      Ci.nsICharsetConverterManager
+    );
+    this._mailCharacterSet = ccm.getCharsetAlias(value);
+  }
+
+  imipMethod = null;
+  imipItem = null;
+  smimeHeaderSink = null;
+
+  get listener() {
+    return this._progressListener?.get();
+  }
+
+  set listener(listener) {
+    this._progressListener = Cu.getWeakReference(listener);
+  }
+}