New line in request uri causes error

[Wouter0100]

For whatever reason, it is possible to have a new line in the request uri from the php fpm page - from which the exporter crashes.

time="2022-10-04T08:51:07Z" level=error msg="Error scraping PHP-FPM: invalid character '\\n' in string literal"
time="2022-10-04T08:51:07Z" level=error msg="invalid character '\\n' in string literal"
time="2022-10-04T08:51:07Z" level=error msg="invalid character '\\n' in string literal"
time="2022-10-04T08:51:07Z" level=error msg="Pool[tcp://127.0.0.1:9000/status]: {\"pool\":\"www\",\"process manager\":\"static\",\"start time\":1663801373,\"start since\":1072094,\"accepted conn\":670044,\"listen queue\":0,\"max listen queue\":1,\"listen queue len\":511,\"idle processes\":9,\"active processes\":1,\"total processes\":10,\"max active processes\":7,\"max children reached\":0,\"slow requests\":0, \"processes\":[{\"pid\":9,\"state\":\"Running\",\"start time\":1663801373,\"start since\":1072094,\"requests\":67007,\"request duration\":221,\"request method\":\"GET\",\"request uri\":\"/status?json\\u0026full\",\"content length\":0,\"user\":\"-\",\"script\":\"-\",\"last request cpu\":0.00,\"last request memory\":0},{\"pid\":10,\"state\":\"Idle\",\"start time\":1663801373,\"start since\":1072094,\"requests\":66999,\"request duration\":31753,\"request method\":\"-\",\"request uri\":\"-\",\"content length\":0,\"user\":\"-\",\"script\":\"-\",\"last request cpu\":62.99,\"last request memory\":4194304},{\"pid\":11,\"state\":\"Idle\",\"start time\":1663801373,\"start since\":1072094,\"requests\":67009,\"request duration\":23973,\"request method\":\"GET\",\"request uri\":\"-\",\"content length\":0,\"user\":\"-\",\"script\":\"/app/public/index.php\",\"last request cpu\":83.43,\"last request memory\":4194304},{\"pid\":12,\"state\":\"Idle\",\"start time\":1663801374,\"start since\":1072093,\"requests\":66998,\"request duration\":139123,\"request method\":\"POST\",\"request uri\":\"/x/chat/x/event\",\"content length\":69,\"user\":\"-\",\"script\":\"/app/public/index.php\",\"last request cpu\":43.13,\"last request memory\":2097152},{\"pid\":13,\"state\":\"Idle\",\"start time\":1663801374,\"start since\":1072093,\"requests\":67000,\"request duration\":82075,\"request method\":\"POST\",\"request uri\":\"/x/chat/x/event\",\"content length\":69,\"user\":\"-\",\"script\":\"/app/public/index.php\",\"last request cpu\":48.74,\"last request memory\":2097152},{\"pid\":14,\"state\":\"Idle\",\"start time\":1663801374,\"start since\":1072093,\"requests\":67001,\"request duration\":12052,\"request method\":\"OPTIONS\",\"request uri\":\"/x/chat/x/event\",\"content length\":0,\"user\":\"-\",\"script\":\"/app/public/index.php\",\"last request cpu\":82.97,\"last request memory\":2097152},{\"pid\":15,\"state\":\"Idle\",\"start time\":1663801374,\"start since\":1072093,\"requests\":67006,\"request duration\":28325,\"request method\":\"POST\",\"request uri\":\"/api/conversation/v2/selfservice/script/x\n/community/x\",\"content length\":481,\"user\":\"-\",\"script\":\"/app/public/index.php\",\"last request cpu\":70.61,\"last request memory\":2097152},{\"pid\":16,\"state\":\"Idle\",\"start time\":1663801374,\"start since\":1072093,\"requests\":67032,\"request duration\":34741,\"request method\":\"GET\",\"request uri\":\"/x/style/chat\",\"content length\":0,\"user\":\"-\",\"script\":\"/app/public/index.php\",\"last request cpu\":57.57,\"last request memory\":2097152},{\"pid\":17,\"state\":\"Idle\",\"start time\":1663801374,\"start since\":1072093,\"requests\":66991,\"request duration\":31459,\"request method\":\"GET\",\"request uri\":\"/x/sidemenu\",\"content length\":0,\"user\":\"-\",\"script\":\"/app/public/index.php\",\"last request cpu\":63.57,\"last request memory\":2097152},{\"pid\":18,\"state\":\"Idle\",\"start time\":1663801374,\"start since\":1072093,\"requests\":67001,\"request duration\":85281,\"request method\":\"GET\",\"request uri\":\"/chat-script/x/state\",\"content length\":0,\"user\":\"-\",\"script\":\"/app/public/index.php\",\"last request cpu\":58.63,\"last request memory\":4194304}]}"

In one of the requests you see /api/conversation/v2/selfservice/script/x\n/community/x\, which results (unescapted) in

/api/conversation/v2/selfservice/script/x
/community/x

Obviously this request would've returned an error in PHP/Apache, but I'd say the php-fpm exporter at least shouldn't crash on it.