PrivateTmp Strangeness — apachectl v/s systemctl

This is a very strange problem — we had a web server upgraded recently. We use “sudo apachectl start” to bring up the server since the server is maintained by a dedicated Unix support team, and the site worked fine. Until … Sunday morning after the log rotation. Then Box Spout was unable to access the XML data for an Excel file to compress it. Lots of errors:

 

[Mon Sep 14 10:59:39.137728 2020] [:error] [pid 57117] [client 10.1.2.3:49276] PHP Warning: ZipArchive::close(): Zlib error: stream error in /path/to/site/classes/vendor/box/spout/src/Spout/Writer/Common/Helper/ZipHelper.php on line 199, referer: https://hostname.example.com/path/to/code.php
[Mon Sep 14 10:59:39.137785 2020] [:error] [pid 57117] [client 10.1.2.3:49276] PHP Warning: fopen(/tmp/xlsx5f5f934699dcd9.17695276.zip): failed to open stream: No such file or directory in /path/to/site/classes/vendor/box/spout/src/Spout/Writer/Common/Helper/ZipHelper.php on line 213, referer: https://hostname.example.com/path/to/code.php
[Mon Sep 14 10:59:39.137803 2020] [:error] [pid 57117] [client 10.1.2.3:49276] PHP Warning: stream_copy_to_stream() expects parameter 1 to be resource, boolean given in /path/to/site/classes/vendor/box/spout/src/Spout/Writer/Common/Helper/ZipHelper.php on line 214, referer: https://hostname.example.com/path/to/code.php
[Mon Sep 14 10:59:39.137814 2020] [:error] [pid 57117] [client 10.1.2.3:49276] PHP Warning: fclose() expects parameter 1 to be resource, boolean given in /path/to/site/classes/vendor/box/spout/src/Spout/Writer/Common/Helper/ZipHelper.php on line 215, referer: https://hostname.example.com/path/to/code.php
[Mon Sep 14 10:59:39.138360 2020] [:error] [pid 57117] [client 10.1.2.3:49276] PHP Fatal error: Uncaught exception ‘Box\\Spout\\Common\\Exception\\IOException’ with message ‘Cannot perform I/O operation outside of the base folder: /tmp’ in /path/to/site/classes/vendor/box/spout/src/Spout/Common/Helper/FileSystemHelper.php:130\nStack trace:\n#0 /path/to/site/classes/vendor/box/spout/src/Spout/Common/Helper/FileSystemHelper.php(82): Box\\Spout\\Common\\Helper\\FileSystemHelper->throwIfOperationNotInBaseFolder(‘/tmp/xlsx5f5f93…’)\n#1 /path/to/site/classes/vendor/box/spout/src/Spout/Writer/XLSX/Helper/FileSystemHelper.php(369): Box\\Spout\\Common\\Helper\\FileSystemHelper->deleteFile(‘/tmp/xlsx5f5f93…’)\n#2 /path/to/site/classes/vendor/box/spout/src/Spout/Writer/XLSX/Internal/Workbook.php(134): Box\\Spout\\Writer\\XLSX\\Helper\\FileSystemHelper->zipRootFolderAndCopyToStream(Resource id #26)\n#3 /path/to/site/ in /path/to/site/classes/vendor/box/spout/src/Spout/Common/Helper/FileSystemHelper.php on line 130, referer: https://hostname.example.com/path/to/code.php
[Mon Sep 14 10:59:39.139468 2020] [:error] [pid 57117] [client 10.1.2.3:49276] PHP Warning: ZipArchive::close(): Zlib error: stream error in /path/to/site/classes/vendor/box/spout/src/Spout/Writer/Common/Helper/ZipHelper.php on line 199, referer: https://hostname.example.com/path/to/code.php
[Mon Sep 14 10:59:39.139504 2020] [:error] [pid 57117] [client 10.1.2.3:49276] PHP Warning: fopen(/tmp/xlsx5f5f934699dcd9.17695276.zip): failed to open stream: No such file or directory in /path/to/site/classes/vendor/box/spout/src/Spout/Writer/Common/Helper/ZipHelper.php on line 213, referer: https://hostname.example.com/path/to/code.php
[Mon Sep 14 10:59:39.139515 2020] [:error] [pid 57117] [client 10.1.2.3:49276] PHP Warning: stream_copy_to_stream() expects parameter 1 to be resource, boolean given in /path/to/site/classes/vendor/box/spout/src/Spout/Writer/Common/Helper/ZipHelper.php on line 214, referer: https://hostname.example.com/path/to/code.php
[Mon Sep 14 10:59:39.139533 2020] [:error] [pid 57117] [client 10.1.2.3:49276] PHP Warning: fclose() expects parameter 1 to be resource, boolean given in /path/to/site/classes/vendor/box/spout/src/Spout/Writer/Common/Helper/ZipHelper.php on line 215, referer: https://hostname.example.com/path/to/code.php
[Mon Sep 14 10:59:39.139599 2020] [:error] [pid 57117] [client 10.1.2.3:49276] PHP Fatal error: Uncaught exception ‘Box\\Spout\\Common\\Exception\\IOException’ with message ‘Cannot perform I/O operation outside of the base folder: /tmp’ in /path/to/site/classes/vendor/box/spout/src/Spout/Common/Helper/FileSystemHelper.php:130\nStack trace:\n#0 /path/to/site/classes/vendor/box/spout/src/Spout/Common/Helper/FileSystemHelper.php(82): Box\\Spout\\Common\\Helper\\FileSystemHelper->throwIfOperationNotInBaseFolder(‘/tmp/xlsx5f5f93…’)\n#1 /path/to/site/classes/vendor/box/spout/src/Spout/Writer/XLSX/Helper/FileSystemHelper.php(369): Box\\Spout\\Common\\Helper\\FileSystemHelper->deleteFile(‘/tmp/xlsx5f5f93…’)\n#2 /path/to/site/classes/vendor/box/spout/src/Spout/Writer/XLSX/Internal/Workbook.php(134): Box\\Spout\\Writer\\XLSX\\Helper\\FileSystemHelper->zipRootFolderAndCopyToStream(Resource id #26)\n#3 /path/to/site in /path/to/site/classes/vendor/box/spout/src/Spout/Common/Helper/FileSystemHelper.php on line 130, referer: https://hostname.example.com/path/to/code.php

 

The postupdate script is “systemctl reload httpd.service” — so not exactly the same thing we used to launch the service originally. But I’ve never seen differing behavior between apachectl and systemctl started HTTPD instances. Quick/dirty solution is to disable PrivateTmp, but I’m hoping to be able to isolate why exactly the postupdate script appears to break the service’s access to the private tmp space.

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