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/* 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,
/**
* This file exports the JSMime code, polyfilling code as appropriate for use in
* Gecko.
*/
export var jsmime = jsmimeModule;
function bytesToString(buffer) {
var string = "";
for (var i = 0; i < buffer.length; i++) {
string += String.fromCharCode(buffer[i]);
}
return string;
}
// Our UTF-7 decoder.
class UTF7TextDecoder {
constructor(manager) {
this.manager = manager;
this.collectInput = "";
}
// Since the constructor checked, this will only be called for UTF-7.
decode(input, options = {}) {
const more = "stream" in options ? options.stream : false;
// There are cases where this is called without input.
if (!input) {
return "";
}
this.collectInput += bytesToString(input);
if (more) {
return "";
}
return this.manager.utf7ToUnicode(this.collectInput);
}
}
function MimeTextDecoder(charset, options) {
const manager = Cc["@mozilla.org/charset-converter-manager;1"].createInstance(
Ci.nsICharsetConverterManager
);
// The following will throw if the charset is unknown.
const newCharset = manager.getCharsetAlias(charset);
if (newCharset.toLowerCase() == "utf-7") {
return new UTF7TextDecoder(manager);
}
return new TextDecoder(newCharset, options);
}
jsmime.mimeutils.MimeTextDecoder = MimeTextDecoder; // Fill!