parse errors xmlrpc - Bad response from server: (200 [parsererror,list])

[spicemint]

Please complete the following tasks.

• Web browser cache cleared
• Link provided to install script if applicable
• Not using broken rtinst install script
• Web browser, ruTorrent, PHP and OS version provided

Tell us about your environment

Web Browser: Firefox (142.0.1 (aarch64)), Edge (Version 140.0.3485.81 (Official build) (arm64)), Safari (Version 26.0.1 (20622.1.22.118.4)), Chrome (Version 140.0.7339.210 (Official Build) (arm64)
), Vivaldi Version 140.0.7339.210 (Official Build) (arm64)

rutorrent: 5.2.10
PHP: 8.4.12
OS: Arch 6.16.8-arch1-1
rtorrent/libtorrent: 16

rutorrent resides in /usr/share/webapps/rutorrent/
the conf/config.php
` <?php
// configuration parameters
// for snoopy client
$httpUserAgent = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36';
$httpTimeOut = 30; // in seconds
$httpUseGzip = true;
$httpIP = null; // IP string. Or null for any.
$httpProxy = array
(
'use' => false,
'proto' => 'http', // 'http' or 'https'
'host' => 'PROXY_HOST_HERE',
'port' => 3128
);

// for xmlrpc actions
$rpcTimeOut = 10;			// in seconds
$rpcLogCalls = false;
$rpcLogFaults = true;

// for php
$phpUseGzip = false;
$phpGzipLevel = 2;

$schedule_rand = 10;			// rand for schedulers start, +0..X seconds

$do_diagnostic = false;			// Diagnose ruTorrent. Recommended to keep enabled, unless otherwise required.
$al_diagnostic = true;			// Diagnose auto-loader. Set to "false" to make composer plugins work.

$log_file = $_ENV['RU_LOG_FILE'] ?? '/tmp/errors.log'; // path to log file (comment or leave blank to disable logging)

$saveUploadedTorrents = true;		// Save uploaded torrents to profile/torrents directory or not
$overwriteUploadedTorrents = false;	// Overwrite existing uploaded torrents in profile/torrents directory or make unique name

$topDirectory = $_ENV['RU_TOP_DIR'] ?? '/';			// Upper available directory. Absolute path with trail slash.
$forbidUserSettings = false;

//	$scgi_port = $_ENV['RU_SCGI_PORT'] ?? 5000;
//	$scgi_host = $_ENV['RU_SCGI_HOST'] ?? "127.0.0.1";

$scgi_port = 0;
$scgi_host = "unix:///run/rtorrent/rpc1.socket";

// For web->rtorrent link through unix domain socket
// (scgi_local in rtorrent conf file), change variables
// above to something like this:
//
// $scgi_port = 0;
// $scgi_host = "unix:///tmp/rpc.socket";

$XMLRPCMountPoint = "/RPC2";		// DO NOT DELETE THIS LINE!!! DO NOT COMMENT THIS LINE!!!

$throttleMaxSpeed = 327625*1024;	// DO NOT EDIT THIS LINE!!! DO NOT COMMENT THIS LINE!!!
// Can't be greater then 327625*1024 due to limitation in libtorrent ResourceManager::set_max_upload_unchoked function.

$pathToExternals = array(
	"php"	=> '',			// Something like /usr/bin/php. If empty, will be found in PATH.
	"curl"	=> '',			// Something like /usr/bin/curl. If empty, will be found in PATH.
	"gzip"	=> '',			// Something like /usr/bin/gzip. If empty, will be found in PATH.
	"id"	=> '',			// Something like /usr/bin/id. If empty, will be found in PATH.
	"stat"	=> '',			// Something like /usr/bin/stat. If empty, will be found in PATH.
);

$localHostedMode = true;		// Set to true if rTorrent is hosted on the SAME machine as ruTorrent

$cachedPluginLoading = false;		// Set to true to enable rapid cached loading of ruTorrent plugins
									// Required to clear web browser cache when upgrading versions

$pluginMinification = false; 	// Stable change to reduce loading times by minimizing JavaScript networked
								// Only recommended to disable when required for debuging purposes

$localhosts = array(			// list of local interfaces
	"::1",
	"127.0.0.1",
	"localhost",
	"10.133.120.3",
);

getenv("RU_LOCALHOSTS") && $localhosts[] = $_ENV['RU_LOCALHOSTS'];

$profilePath = $_ENV['RU_PROFILE_PATH'] ?? '../../share';		// Path to user profiles
$profileMask = $_ENV['RU_PROFILE_MASK'] ?? 0777;			// Mask for files and directory creation in user profiles.
					// Both Webserver and rtorrent users must have read-write access to it.
					// For example, if Webserver and rtorrent users are in the same group then the value may be 0770.

$tempDirectory = $_ENV['RU_TEMP_DIRECTORY'] ?? null; // Temp directory. Absolute path. If null, then autodetect will be used.

$canUseXSendFile = false;		// If true then use X-Sendfile feature if it exist

$locale = "UTF8";

$enableCSRFCheck = false;		// If true then Origin and Referer will be checked
$enabledOrigins = array();		// List of enabled domains for CSRF check (only hostnames, without protocols, port etc.).
					// If empty, then will retrieve domain from HTTP_HOST / HTTP_X_FORWARDED_HOST

`

the rutorrent/conf/plugins.ini

;; Plugins' permissions.
;; If flag is not found in plugin section, corresponding flag from "default" section is used.
;; If flag is not found in "default" section, it is assumed to be "yes".
;;
;; For setting individual plugin permissions you must write something like that:
;;
;; [ratio]
;; enabled = yes ;; also may be "user-defined", in this case user can control plugin's state from UI
;; canChangeToolbar = yes
;; canChangeMenu = yes
;; canChangeOptions = no
;; canChangeTabs = yes
;; canChangeColumns = yes
;; canChangeStatusBar = yes
;; canChangeCategory = yes
;; canBeShutdowned = yes

[default]
enabled = user-defined
canChangeToolbar = yes
canChangeMenu = yes
canChangeOptions = yes
canChangeTabs = yes
canChangeColumns = yes
canChangeStatusBar = yes
canChangeCategory = yes
canBeShutdowned = yes

[httprpc]
enabled = yes
[RPC]
enabled = no

relevant bits from apache config:

<Location /RPC2>
ProxyPass unix:///run/rtorrent/rpc1.socket|scgi://127.0.0.1/RPC2
Require all granted


Alias /rutorrent /usr/share/webapps/rutorrent
<Directory "/usr/share/webapps/rutorrent">
Require all granted
AuthType Basic
AuthBasicProvider file
AuthName "Nihil Hic Vides"
AuthUserFile /usr/share/webapps/rutorrent/.htpasswd
Require valid-user

my rtorrent.rc

network.local_address.set = external IP
network.bind_address.set = internal lan IP
ratio.min.set=10000
ratio.max.set=30000
ratio.upload.set=300000M
system.file.allocate.set = 1
network.send_buffer.size.set = 128M
session.path.set = /home/funky1/media/sdac/rtorrent01/.session01/
network.rpc.use_xmlrpc.set = true
network.rpc.use_jsonrpc.set = false
system.daemon.set = false
network.scgi.open_local = /run/rtorrent/rpc1.socket
schedule2 = scgi_permission,0,0,"execute.nothrow=chmod,"g+w,o=",/run/rtorrent/rpc1.socket"
log.open_file = "rtorrent.log", (cat,/home/funky1/media/sdn/rtorrent01/rtorrent.log.,(system.pid))
log.add_output = "debug", "rtorrent.log"
schedule = watch_directory_1,10,10,"load.start=/home/funky1/media/sdae/incoming/*.torrent,d.custom1.set=/home/funky1/media/sdae/incoming/"
method.insert = d.data_path, simple, "if=(d.is_multi_file), (cat,(d.directory),/), (cat,(d.directory),/,(d.name))"
method.insert = d.move_to_complete, simple, "d.directory.set=$argument.1=; execute=mkdir,-p,$argument.1=; execute=mv,-u,$argument.0=,$argument.1=; d.save_full_session="
method.set_key = event.download.finished,move_complete,"d.move_to_complete=$d.data_path=,$d.custom1="
network.port_range.set = 41114-43120
network.port_random.set = no
dht.mode.set = disable
protocol.pex.set = no
trackers.use_udp.set = yes
throttle.max_uploads.set = 20
throttle.max_uploads.global.set = 200
throttle.min_peers.normal.set = 100
throttle.max_peers.normal.set = 200
throttle.min_peers.seed.set = 99
throttle.max_peers.seed.set = 100
trackers.numwant.set = -1
max_downloads_global = 10
protocol.encryption.set = allow_incoming,try_outgoing,enable_retry
network.http.max_open.set = 99
network.max_open_files.set = 600
network.max_open_sockets.set = 999
pieces.memory.max.set = 4096M
network.xmlrpc.size_limit.set = 128M
execute.nothrow = sh, -c, (cat, "echo >",
(session.path), "rtorrent.pid", " ",(system.pid))
encoding.add = UTF-8
system.umask.set = 0027
network.http.dns_cache_timeout.set = 25
schedule = monitor_diskspace, 15, 60, ((close_low_diskspace, 1000M))
pieces.hash.on_completion.set = yes
method.insert = system.startup_time, value|const, (system.time)
method.insert = d.session_file, simple, "cat=(session.path), (d.hash), .torrent"

Tell us how you installed ruTorrent

earlier was using apache, rtorrent/libtorrent 15 with rutorrent 5.2.10 and rpc port ip and was working, then once I updated and ran into this issue i did a fresh install:
got the latest source from the rutorrent github, extracted into /usr/share/webapps/rutorrent/
Tried with Apache and nginx, same issue, then i switched to the current config of rtorrent/rutorrent (the change: now using unix sockets)
so working to get the above working but normally i have also multiple instances of rtorrent & rutorrent running (to fix the problem i have no, i removed all other rtorrent/rutorrent instance but would like to have confirmation that it is correct also, which is why I'm explaining my approach to it here)
basically i would unzip another rutorrent in /usr/share/webapps/rutorrent2/ then adjust the same files as above, e.g. the conf/config.php:

$scgi_host = "unix:///run/rtorrent/rpc2.socket";
$XMLRPCMountPoint = "/RPC3";

apache config has an addition to the above:
relevant bits from apache config:

<Location /RPC3>
ProxyPass unix:///run/rtorrent/rpc1.socket|scgi://127.0.0.1/RPC3
Require all granted


Alias /rutorrent /usr/share/webapps/rutorrent
<Directory "/usr/share/webapps/rutorrent2">
Require all granted
AuthType Basic
AuthBasicProvider file
AuthName "Nihil Hic Vides"
AuthUserFile /usr/share/webapps/rutorrent2/.htpasswd
Require valid-user

and rtorrent is also accordingly adjusted:

network.rpc.use_xmlrpc.set = true
network.rpc.use_jsonrpc.set = false
system.daemon.set = false
network.scgi.open_local = /run/rtorrent/rpc2.socket
schedule2 = scgi_permission,0,0,"execute.nothrow=chmod,"g+w,o=",/run/rtorrent/rpc2.socket"

Describe the bug

When loading the website, the rutorrent webpage displays space on hdd, version of rtorrent/libtorrent, speed, external IP and ports in use but no torrents are displayed and this error is shown:

Bad response from server: (200 [parsererror,list])

Steps to reproduce

update to or install freshly rtorrent, rutorrent, php, webserver, start php, webserver, rtorrent and ndavigate to webpage

Expected behavior

torrents should be displayed in the browser, i don't use any of the plugins

Additional context

No response

[spicemint]

I leave the tabs with the rutorrent site open for 2 clients, both are configured the same way, just seperate ports etc. occasionally it seems it is able to connect to rtorrent as I see torrents in the list but 99.9 % of the time it shows error [parse errors xmlrpc - Bad response from server: (200 [parsererror,list]) and only one client, the other is blank all the time

[anthonyryan1]

@spicemint Could I have you test the bug fix I proposed in #2996 and let me know if that resolves your issue?

[spicemint]

@anthonyryan1 tried and yes seems fixed now with that change, many thanks :)
20 mins later: sorry again timeouts

[xirvik]

@spicemint a timeout is not the same as a parseerror... are you still having problems and if yes, what?

[ranirahn]

I have not seen this error long time now. At least right now rtorrent 0.16.10+rutorrent 5.3.1 does not give this error. So probably can close this and open if it happens again.