PHP 7.4+ notice in getid3_mp3::MPEGaudioHeaderValid()

[schlessera]

The getid3_mp3::MPEGaudioHeaderValid() method checks for an array key right at the beginning for an early return:

<?php
public static function MPEGaudioHeaderValid($rawarray, $echoerrors=false, $allowBitrate15=false) {
        if (($rawarray['synch'] & 0x0FFE) != 0x0FFE) {
                return false;
        }

As it can receive its data from the MPEGaudioHeaderDecode() method, which returns array|false, a corrupted MP3 stream will cause this check throw a notice:

Notice: Trying to access array offset on value of type bool in wp-includes/ID3/module.audio.mp3.php on line 1782

This was already fixed upstream:
​https://github.com/JamesHeinrich/getID3/blob/master/getid3/module.audio.mp3.php#L1794

This fix needs to be ported over to Core for PHP 7.4+ support.

[ayeshrajans]

There seems to be other fixes in the 1.9.19 release. I'll send a patch to update the version.

[ayeshrajans]

A patch to update all existing files in ID3 library to its current version. No new files are added, only modified local files. I doubt we have tests for them though.

[SergeyBiryukov]

Previously:

• [46112] / #48040, #47751, #47783.
• [46166] / #47751, #40883, #43836.

[SergeyBiryukov]

It looks like version 1.9.19 (released on Dec 18, 2019) does not include the ​PHP 7.4+ fix in question (committed on Dec 22, 2019), so it will have to be backported separately.

[SergeyBiryukov]

In 47601:

External Libraries: Update getID3() to 1.9.19.

Changelog: ​https://github.com/JamesHeinrich/getID3/compare/v1.9.18...v1.9.19

Props ayeshrajans, schlessera.
See #49945.

[SergeyBiryukov]

In 47602:

External Libraries: Backport a commit from getID3() trunk to fix a PHP 7.4+ notice.

This addresses a "Trying to access array offset on value of type bool" notice in the getid3_mp3::MPEGaudioHeaderValid() method.

Props schlessera.
Fixes #49945.

[SergeyBiryukov]

[47601] caused some failures on Travis:

Deprecated: Function get_magic_quotes_runtime() is deprecated in /var/www/build/wp-includes/ID3/getid3.php on line 303
Deprecated: Function get_magic_quotes_gpc() is deprecated in /var/www/build/wp-includes/ID3/getid3.php on line 309
Deprecated: Function get_magic_quotes_runtime() is deprecated in /var/www/build/wp-includes/ID3/getid3.php on line 303
Deprecated: Function get_magic_quotes_gpc() is deprecated in /var/www/build/wp-includes/ID3/getid3.php on line 309

Those lines have a version_compare(PHP_VERSION, '7.4.0', '<') check above them, but for some reason are still executed in the PHP 7.4 job on Travis. It looks like php --version on all jobs reports PHP 7.2.15.

Those lines were previously commented out in [46113], but that was reverted in [47601] as seemingly not necessary with the version_compare() check brought from upstream.

I guess we'll have to comment them out again for the time being, until we figure out why version_compare() doesn't work.

[SergeyBiryukov]

In 47603:

External Libraries: Comment out magic quote functions in getID3().

For some reason, the version_compare() check does not work as expected on Travis.

Follow-up to [46113], [47601].

See #49945.

[SergeyBiryukov]

Replying to SergeyBiryukov:

Those lines have a version_compare(PHP_VERSION, '7.4.0', '<') check above them, but for some reason are still executed in the PHP 7.4 job on Travis. It looks like php --version on all jobs reports PHP 7.2.15.

Per @ocean90, the PHP version of Travis doesn't matter as we're using Docker. The issue seems to be that the PHP version of the Docker image is still 7.4.0RC6.

[ocean90]

Replying to SergeyBiryukov:

The issue seems to be that the PHP version of the Docker image is still 7.4.0RC6.

​https://github.com/WordPress/wpdev-docker-images/pull/26 should fix this.

[SergeyBiryukov]

In 47604:

External Libraries: Revert [47603].

With the Docker image for PHP 7.4 updated to stable version, this should no longer be necessary.

See ​https://github.com/WordPress/wpdev-docker-images/pull/26

Props ocean90.
Fixes #49945.

[desrosj]

This getID3 update was noted in the following dev note: ​https://make.wordpress.org/core/2020/07/01/external-library-updates-in-wordpress-5-5-call-for-testing/

[Hareesh Pillai]

There was a new version (​v1.9.20) of getID3 released yesterday. Let us try to update to this version for WP 5.5

Trac ticket: https://core.trac.wordpress.org/ticket/49945

[desrosj]

In 48278:

External Libraries: Update getID3 to version 1.9.20.

A full list of changes in this update can be found on GitHub: ​https://github.com/JamesHeinrich/getID3/compare/v1.9.19...v1.9.20.

Props hareesh-pillai, desrosj.
Previously [47601-47604].
Fixes #49945.

This was merged into core in https://core.trac.wordpress.org/changeset/48278.

[SergeyBiryukov]

#50582 was marked as a duplicate.