libmime - npm Package Compare versions

Comparing version 5.3.7 to 5.3.8

CHANGELOG.md

 # Changelog
 
+## [5.3.8](https://github.com/nodemailer/libmime/compare/v5.3.7...v5.3.8) (2026-04-08)
+
+
+### Bug Fixes
+
+* bump iconv-lite to 0.7.2 and refresh dev tooling ([176bde0](https://github.com/nodemailer/libmime/commit/176bde025f4d1ec1dc61266330ed1d2e11457c2c))
+* charset.decode returns string for Japanese encodings ([c2cff8b](https://github.com/nodemailer/libmime/commit/c2cff8b6833d7c0d50d19bb1a63e8db1685cc866))
+
 ## [5.3.7](https://github.com/nodemailer/libmime/compare/v5.3.6...v5.3.7) (2025-06-26)
@@ -4,0 +12,0 @@

lib/charset.js

@@ -30,3 +30,3 @@ 'use strict';
      * @param {String} [fromCharset='UTF-8'] Binary data is decoded into string using this charset
-     * @return {String} Decded string
+     * @return {String} Decoded string
      */
@@ -52,5 +52,5 @@ decode(buf, fromCharset) {
                     if (typeof output === 'string') {
-                        output = Buffer.from(output);
+                        return output;
                     }
-                    return output;
+                    // fall through to iconv-lite if convert returned something unexpected
                 } catch (err) {
@@ -71,3 +71,3 @@ // ignore, defaults to iconv-lite on error
      *
-     * @param {String|Buffer} str String to be encoded
+     * @param {String|Buffer} data String or Buffer to be encoded
      * @param {String} [fromCharset='UTF-8'] Source encoding for the string
@@ -97,3 +97,3 @@ * @return {Buffer} UTF-8 encoded typed array
      * @param {String} charset Charset name to convert
-     * @return {String} Canoninicalized charset name
+     * @return {String} Canonicalized charset name
      */
@@ -100,0 +100,0 @@ normalizeCharset(charset) {

lib/libmime.js

@@ -40,2 +40,3 @@ /* eslint no-control-regex: 0, no-div-regex: 0, quotes: 0 */
      *
+     * @param {String} str String to be tested
      * @param {Number} lineLength Max line length to check for
@@ -199,5 +200,8 @@ * @returns {Boolean} Returns true if there is at least one line longer than lineLength chars
     /**
-     * Decode a complete mime word encoded string
+     * Decodes the inner payload of a single mime encoded-word into a unicode string.
+     * Expects the three components of `=?charset?encoding?text?=` already separated.
      *
-     * @param {String} str Mime word encoded string
+     * @param {String} charset Charset name from the encoded-word (may include an RFC 2231 language tag, which is ignored)
+     * @param {String} encoding Encoding indicator, either 'Q' or 'B' (case insensitive)
+     * @param {String} str Encoded payload between the second `?` and the trailing `?=`
      * @return {String} Decoded unicode string
@@ -262,3 +266,3 @@ */
      * @param {Number} [maxLength=0] If set, split mime words into several chunks if needed
-     * @param {String} [fromCharset='UTF-8'] Source sharacter set
+     * @param {String} [fromCharset='UTF-8'] Source character set
      * @return {String} String with possible mime words
@@ -306,3 +310,3 @@ */
      *
-     * @param {String} str String including some mime words that will be encoded
+     * @param {String} str String including some mime words that will be decoded
      * @return {String} Decoded unicode string
@@ -354,3 +358,3 @@ */
      * @param {String} headerLine Single header line, might include linebreaks as well if folded
-     * @return {Object} And object of {key, value}
+     * @return {Object} An object of {key, value}
      */
@@ -605,5 +609,6 @@ decodeHeader(headerLine) {
      *
+     * @param {String} key Parameter name (eg. 'filename')
      * @param {String|Buffer} data String to be encoded
      * @param {Number} [maxLength=50] Max length for generated chunks
-     * @param {String} [fromCharset='UTF-8'] Source sharacter set
+     * @param {String} [fromCharset='UTF-8'] Source character set
      * @return {Array} A list of encoded keys and headers
@@ -772,4 +777,4 @@ */
      *
-     * @param {String} extension Extension to be checked for
-     * @return {String} File extension
+     * @param {String} extension Extension (or filename) to be checked for
+     * @return {String} Content type
      */
@@ -807,3 +812,3 @@ detectMimeType(extension) {
      * @param {Number} [lineLength=76] Maximum length of a line
-     * @param {Boolean} afterSpace If true, leave a space in th end of a line
+     * @param {Boolean} afterSpace If true, leave a space in the end of a line
      * @return {String} String with folded lines
@@ -810,0 +815,0 @@ */

package.json

 {
     "name": "libmime",
     "description": "Encode and decode quoted printable and base64 strings",
-    "version": "5.3.7",
+    "version": "5.3.8",
     "main": "lib/libmime.js",
@@ -28,3 +28,3 @@ "files": [
         "encoding-japanese": "2.2.0",
-        "iconv-lite": "0.6.3",
+        "iconv-lite": "0.7.2",
         "libbase64": "1.3.0",
@@ -36,3 +36,3 @@ "libqp": "2.1.1"
         "eslint-config-nodemailer": "1.2.0",
-        "eslint-config-prettier": "10.1.5",
+        "eslint-config-prettier": "10.1.8",
         "grunt": "1.6.1",
@@ -42,4 +42,4 @@ "grunt-cli": "1.5.0",
         "grunt-mocha-test": "0.13.3",
-        "mocha": "11.7.1"
+        "mocha": "11.7.5"
     }
 }

README.md

@@ -203,3 +203,3 @@ # libmime
 
-    libmime.detectExtension('logo.jpg') // returns 'image/jpeg'
+    libmime.detectMimeType('logo.jpg') // returns 'image/jpeg'
 
@@ -206,0 +206,0 @@ ## License

No alert changes

Improved metrics

Total package byte prevSize

153163

0.62%

Lines of code

3404

0.15%

Dependency changes

• + Added

  iconv-lite@0.7.2
  (transitive)

• - Removed

  iconv-lite@0.6.3
  (transitive)

• Updated

  iconv-lite@0.7.2