Bug #77711 [Opn->Asn]: CURLFile unable to handle UNICODE filenames

Edit report at https://bugs.php.net/bug.php?id=77711&edit=1 ID: 77711 Updated by: kalle@php.net Reported by: anrdaemon at freemail dot ru Summary: CURLFile unable to handle UNICODE filenames -Status: Open +Status: Assigned Type: Bug Package: cURL related Operating System: Windows PHP Version: 7.3.3 -Assigned To: +Assigned To: bagder Block user comment: N Private report: N New Comment: From a quick read, it seems like the issue is caused in cURL itself, as internally we pass the filename supplied directly to curl_formadd(). I see two ways we can fix this: 1) Upstream fix from cURL 2) Implement a file name normalization fix for Windows, however I do not know how this will affect cURL Assigning this to Daniel, perhaps he can share some insights on this. Previous Comments: ------------------------------------------------------------------------ [2019-03-08 16:00:31] anrdaemon at freemail dot ru Description: ------------ CURLFile starting from PHP 7.1 is unable to handle local paths containing UNICODE sequences. The workaround is to iconv() the path to single-byte character set used by WinAPI non-widestring family of functions on a given OS installation. But that's limiting the usability of the language to laughable levels. $ php -i | grep -E "chars|encod" default_charset => CP866 => CP866 input_encoding => CP866 => CP866 internal_encoding => UTF-8 => UTF-8 output_encoding => CP866 => CP866 zend.script_encoding => no value => no value exif.encode_jis => no value => no value exif.encode_unicode => ISO-8859-15 => ISO-8859-15 iconv.input_encoding => no value => no value iconv.internal_encoding => no value => no value iconv.output_encoding => no value => no value mailparse.def_charset => UTF-8 => UTF-8 HTTP input encoding translation => disabled mbstring.encoding_translation => Off => Off mbstring.internal_encoding => no value => no value Test script: --------------- <?php // Cyrillic capital letter A // tempnam() returns path encoded in internal_encoding $name = tempnam(__DIR__, "\u{0410}"); //print bin2hex(basename($name)); file_put_contents($name, "Test."); $file = new \CURLFile($name, null, "file"); // $file = new \CURLFile(iconv("UTF-8", "CP1251", $name), null, "file"); // Rather arbitrary workaround $curl = curl_init($argv[1] ?: "http://example.org/post.php"); curl_setopt_array($curl, [ CURLOPT_POST => true, CURLOPT_POSTFIELDS => [ "file" => $file, ], CURLOPT_VERBOSE => true, ]); $rc = curl_exec($curl); if($rc === false) { $err = curl_errno($curl); error_log(curl_strerror($err) . " ($err): " . curl_error($curl)); die; } print "$rc"; Expected result: ---------------- Successful upload. Actual result: -------------- Failed to open/read local data from file/application (26): ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=77711&edit=1