diff options
Diffstat (limited to 'collectors/python.d.plugin/tomcat')
| -rw-r--r-- | collectors/python.d.plugin/tomcat/tomcat.chart.py | 41 |
1 files changed, 36 insertions, 5 deletions
diff --git a/collectors/python.d.plugin/tomcat/tomcat.chart.py b/collectors/python.d.plugin/tomcat/tomcat.chart.py index 01578c56e..ab3003304 100644 --- a/collectors/python.d.plugin/tomcat/tomcat.chart.py +++ b/collectors/python.d.plugin/tomcat/tomcat.chart.py @@ -5,11 +5,17 @@ # SPDX-License-Identifier: GPL-3.0-or-later import xml.etree.ElementTree as ET +import re from bases.FrameworkServices.UrlService import UrlService MiB = 1 << 20 +# Regex fix for Tomcat single quote XML attributes +# affecting Tomcat < 8.5.24 & 9.0.2 running with Java > 9 +# cf. https://bz.apache.org/bugzilla/show_bug.cgi?id=61603 +single_quote_regex = re.compile(r"='([^']+)'([^']+)''") + ORDER = [ 'accesses', 'bandwidth', @@ -95,6 +101,32 @@ class Service(UrlService): self.definitions = CHARTS self.url = self.configuration.get('url', 'http://127.0.0.1:8080/manager/status?XML=true') self.connector_name = self.configuration.get('connector_name', None) + self.parse = self.xml_parse + + def xml_parse(self, data): + try: + return ET.fromstring(data) + except ET.ParseError: + self.debug('%s is not a valid XML page. Please add "?XML=true" to tomcat status page.' % self.url) + return None + + def xml_single_quote_fix_parse(self, data): + data = single_quote_regex.sub(r"='\g<1>\g<2>'", data) + return self.xml_parse(data) + + def check(self): + self._manager = self._build_manager() + + raw_data = self._get_raw_data() + if not raw_data: + return False + + if single_quote_regex.search(raw_data): + self.warning('Tomcat status page is returning invalid single quote XML, please consider upgrading ' + 'your Tomcat installation. See https://bz.apache.org/bugzilla/show_bug.cgi?id=61603') + self.parse = self.xml_single_quote_fix_parse + + return self.parse(raw_data) is not None def _get_data(self): """ @@ -104,11 +136,10 @@ class Service(UrlService): data = None raw_data = self._get_raw_data() if raw_data: - try: - xml = ET.fromstring(raw_data) - except ET.ParseError: - self.debug('%s is not a vaild XML page. Please add "?XML=true" to tomcat status page.' % self.url) + xml = self.parse(raw_data) + if xml is None: return None + data = {} jvm = xml.find('jvm') @@ -153,7 +184,7 @@ class Service(UrlService): data['metaspace_committed'] = pool.get('usageCommitted') data['metaspace_max'] = pool.get('usageMax') - if connector: + if connector is not None: thread_info = connector.find('threadInfo') data['currentThreadsBusy'] = thread_info.get('currentThreadsBusy') data['currentThreadCount'] = thread_info.get('currentThreadCount') |