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feat: allow to configure php.user #45307

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feat: allow to configure php.user #45307

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087ba07
feat: allow to configure config.owner
szaimen May 14, 2024
a0d9dca
fix(posix_getpwuid): handle false return value
szaimen May 22, 2024
137986f
fix: address review
szaimen May 22, 2024
1afe55b
fix: address review 2
szaimen May 24, 2024
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9 changes: 9 additions & 0 deletions config/config.sample.php
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Original file line number Diff line number Diff line change
Expand Up @@ -940,6 +940,15 @@
*/
'config_is_read_only' => false,

/**
* In certain environments it is desired to set the config.php owner to
* something else than the user that is running the php process.
* In that case in order to determine the user that the php process uses,
* you can overwrite the user with this config flag for console.php and cron.php
* Defaults to ``''`` (empty string)
*/
'php.user' => '',

/**
* Logging
*/
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9 changes: 8 additions & 1 deletion console.php
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Expand Up @@ -42,13 +42,20 @@ function exceptionHandler($exception) {
}

$user = posix_getuid();
$userNameArray = posix_getpwuid($user);
$username = null;
if ($userNameArray !== false) {
$userName = $userNameArray['name'];
}
$configUser = fileowner(OC::$configDir . 'config.php');
if ($user !== $configUser) {
$configuredUser = $config->getSystemValueString('php.user', '');
if ($user !== $configUser && $username !== null && $userName !== $configuredUser) {
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This check always needs to check for $configuredUser if set. Also accepting $configUser can lead to the very issue this is trying to prevent.

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something like

$phpUser = $config->getSystemValueString('php.user', '');
if (!$phpUser) {
    $userNameArray = posix_getpwuid($user);
	if ($userNameArray !== false) {
		$phpUser = $userNameArray['name'];
	}
}
if ($user != $phpUser) {

maybe

echo "Console has to be executed with the user that owns the file config/config.php" . PHP_EOL;
echo "Current user id: " . $user . PHP_EOL;
echo "Owner id of config.php: " . $configUser . PHP_EOL;
echo "Try adding 'sudo -u #" . $configUser . "' to the beginning of the command (without the single quotes)" . PHP_EOL;
echo "If running with 'docker exec' try adding the option '-u " . $configUser . "' to the docker command (without the single quotes)" . PHP_EOL;
echo "Another option is to configure 'php.user' in config.php which will overwrite this check.";
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I think as worded this is misleading, the option doesn't overwrite the check, it changes that the expected value of the check is.

I would go with something like

If the config file is not owned by the user running the webserver you can set the correct user by setting the 'php.user' option in your config.php

exit(1);
}

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9 changes: 8 additions & 1 deletion cron.php
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Expand Up @@ -130,11 +130,18 @@
}

$user = posix_getuid();
$userNameArray = posix_getpwuid($user);
$username = null;
if ($userNameArray !== false) {
$userName = $userNameArray['name'];
}
$configUser = fileowner(OC::$configDir . 'config.php');
if ($user !== $configUser) {
$configuredUser = $config->getSystemValueString('php.user', '');
if ($user !== $configUser && $username !== null && $userName !== $configuredUser) {

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cron.php:140:7: TypeDoesNotContainType: Type null for $username is always !null (see https://psalm.dev/056)

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Type null for $username is always !null
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Looks like this is not true? How can I fix this?

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Are you sure? Documentation says it should return false on failure: https://www.php.net/manual/en/function.posix-getpwuid.php

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same here

echo "Console has to be executed with the user that owns the file config/config.php" . PHP_EOL;
echo "Current user id: " . $user . PHP_EOL;
echo "Owner id of config.php: " . $configUser . PHP_EOL;
echo "Another option is to configure 'php.user' in config.php which will overwrite this check.";
exit(1);
}

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