Decode partially encoded address names Webklex#511

Author: Webklex

CHANGELOG.md

@@ -9,6 +9,7 @@ Updates should follow the [Keep a CHANGELOG](http://keepachangelog.com/) princip
 - Filename sanitization is now optional (enabled via default)
 - Address parsing improved and extended to include more cases
 - Boundary parsing fixed and improved to support more formats #544
+- Decode partially encoded address names #511
 
 ### Added
 - Security configuration options added

src/Decoder/HeaderDecoder.php

@@ -68,11 +68,11 @@ public function getEncoding(object|string $structure): string {
         if (property_exists($structure, 'parameters')) {
             foreach ($structure->parameters as $parameter) {
                 if (strtolower($parameter->attribute) == "charset") {
-                    return EncodingAliases::get($parameter->value, $this->fallback_encoding);
+                    return EncodingAliases::get($parameter->value == "default" ? EncodingAliases::detectEncoding($parameter->value) : $parameter->value, $this->fallback_encoding);
                 }
             }
         } elseif (property_exists($structure, 'charset')) {
-            return EncodingAliases::get($structure->charset, $this->fallback_encoding);
+            return EncodingAliases::get($structure->charset == "default" ? EncodingAliases::detectEncoding($structure->charset) : $structure->charset, $this->fallback_encoding);
         } elseif (is_string($structure) === true) {
             $result = mb_detect_encoding($structure);
             return $result === false ? $this->fallback_encoding : $result;

src/Header.php

@@ -480,16 +480,23 @@ private function parseAddresses($list): array {
             if (!property_exists($address, 'personal')) {
                 $address->personal = false;
             } else {
-                $personalParts = $this->decoder->mimeHeaderDecode($address->personal);
-
-                $address->personal = '';
-                foreach ($personalParts as $p) {
-                    $address->personal .= $this->decoder->convertEncoding($p->text, $this->decoder->getEncoding($p));
-                }
+                $personal_slices = explode(" ", $address->personal);
+                $address->personal = "";
+                foreach ($personal_slices as $slice) {
+                    $personalParts = $this->decoder->mimeHeaderDecode($slice);
+
+                    $personal = '';
+                    foreach ($personalParts as $p) {
+                        $personal .= $this->decoder->convertEncoding($p->text, $this->decoder->getEncoding($p));
+                    }
 
-                if (str_starts_with($address->personal, "'")) {
-                    $address->personal = str_replace("'", "", $address->personal);
+                    if (str_starts_with($personal, "'")) {
+                        $personal = str_replace("'", "", $personal);
+                    }
+                    $personal = $this->decoder->decode($personal);
+                    $address->personal .= $personal . " ";
                 }
+                $address->personal = trim(rtrim($address->personal));
             }
 
             if ($address->host == ".SYNTAX-ERROR.") {

tests/issues/Issue511Test.php

@@ -0,0 +1,50 @@
+<?php
+/*
+* File: Issue410Test.php
+* Category: -
+* Author: M.Goldenbaum
+* Created: 23.06.23 20:41
+* Updated: -
+*
+* Description:
+*  -
+*/
+
+namespace Tests\issues;
+
+use PHPUnit\Framework\TestCase;
+use Tests\fixtures\FixtureTestCase;
+use Webklex\PHPIMAP\Attachment;
+use Webklex\PHPIMAP\ClientManager;
+use Webklex\PHPIMAP\EncodingAliases;
+use Webklex\PHPIMAP\Exceptions\AuthFailedException;
+use Webklex\PHPIMAP\Exceptions\ConnectionFailedException;
+use Webklex\PHPIMAP\Exceptions\ImapBadRequestException;
+use Webklex\PHPIMAP\Exceptions\ImapServerErrorException;
+use Webklex\PHPIMAP\Exceptions\InvalidMessageDateException;
+use Webklex\PHPIMAP\Exceptions\MaskNotFoundException;
+use Webklex\PHPIMAP\Exceptions\MessageContentFetchingException;
+use Webklex\PHPIMAP\Exceptions\ResponseException;
+use Webklex\PHPIMAP\Exceptions\RuntimeException;
+use Webklex\PHPIMAP\Message;
+
+class Issue511Test extends FixtureTestCase {
+
+    /**
+     * @throws RuntimeException
+     * @throws MessageContentFetchingException
+     * @throws ResponseException
+     * @throws ImapBadRequestException
+     * @throws InvalidMessageDateException
+     * @throws ConnectionFailedException
+     * @throws \ReflectionException
+     * @throws ImapServerErrorException
+     * @throws AuthFailedException
+     * @throws MaskNotFoundException
+     */
+    public function testIssueEmail() {
+        $message = $this->getFixture("issue-511.eml");
+        self::assertSame("RE: [EXTERNAL] Re: Lorem Ipsum /40 one", (string)$message->subject);
+        self::assertSame("COMPANYNAME | usługi <sender@sender_domain.tld>", (string)$message->from->first());
+    }
+}

tests/messages/issue-511.eml

@@ -0,0 +1,5 @@
+From: COMPANYNAME | =?iso-8859-2?q?us=B3ugi?= <sender@sender_domain.tld>
+To: receipent@receipent_domain.tld
+Subject: =?utf-8?B?UkU6IFtFWFRFUk5BTF0gUmU6IExvcmVtIElwc3VtIC8=?= =?utf-8?Q?40_one?=
+
+Test message