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Parse stats from PowerDNS webserver

PowerDNS has a webserver that reports running stats. This code converts the HTML output (which has quite a few syntactic HTML errors) to semi-XML Output

<Section name="Summary">
PowerDNS Operational Monitor
PDNS 2.9.21 Main Page
Uptime: 6.48 hours
Queries/second, 1, 5, 10 minute averages:  0.549, 0.519, 0.532. Max queries/second: 2.57
Cache hitrate, 1, 5, 10 minute averages: 0%, 0%, 0%
Backend query cache hitrate, 1, 5, 10 minute averages: 4.6%, 4.1%, 3.9%
Backend query load, 1, 5, 10 minute averages: 0.845, 0.848, 0.884. Max queries/second: 4.88
Total queries: 13428. Question/answer latency: 0ms
</Section>

<Section name="Top-10 of 0: Log Messages">
 Total:   0   100%
</Section>
<Section name="Top-10 of 0: Queries for existing records, but for type we don't have">
 Total:   0   100%
</Section>
<Section name="Top-10 of 1: Queries for non-existent records within existent domains">
 *.videoserving.com/A   1   1e+02%
 Total:   1   100%
</Section>
<Section name="Top-10 of 21: UDP Queries Received">
 g.videoserving.com/A   5272   53%
 x.videoserving.com/A   2887   29%
 x.videoserving.com/AAAA   785   7.8%
 b.videoserving.com/A   642   6.4%
 g.videoserving.com/AAAA   163   1.6%
 videoserving.com/MX   133   1.3%
 b.videoserving.com/AAAA   69   0.69%
 v.videoserving.com/A   15   0.15%
 y.videoserving.com/MX   9   0.09%
 g.videoserving.com/MX   6   0.06%
 Rest:   19   0.19%
 Total:   10000   100%
</Section>
<Section name="Top-10 of 5323: Remote server IP addresses">
 xx.248.95.194   251   2.5%
 xx.226.48.165   119   1.2%
 xx.24.7.3   89   0.89%
 xx.94.163.100   67   0.67%
 xx.183.64.46   60   0.6%
 xx.29.103.10   58   0.58%
 xx.92.226.9   57   0.57%
 xx.25.5.150   41   0.41%
 xx.96.83.2   29   0.29%
 xx.68.8.4   29   0.29%
 Rest:   9200   92%
 Total:   10000   100%
</Section>
<Section name="Top-10 of 0: Remote hosts sending corrupt packets">
 Total:   0   100%
</Section>
<Section name="Top-10 of 2: Remote hosts querying domains for which we are not auth">
 xx.xx.190.249   2   67%
 xx.xx.245.57   1   33%
 Total:   3   100%
</Section>
<Section name="Top-10 of 0: Queries that could not be answered due to backend errors">
 Total:   0   100%
</Section>
<Section name="Top-10 of 3: Queries for domains that we are not authoritative for">
 irc.xx.com/A   1   33%
 spy.xxx.us/A   1   33%
 www.xxxx.com/A   1   33%
 Total:   3   100%
</Section>
<Section name="Variables">
corrupt-packets   0   Number of corrupt packets received
deferred-cache-inserts   0   Amount of cache inserts that were deferred because of maintenance
deferred-cache-lookup   0   Amount of cache lookups that were deferred because of maintenance
latency   0   Average number of microseconds needed to answer a question
packetcache-hit   0 
packetcache-miss   13428 
packetcache-size   0 
qsize-q   1   Number of questions waiting for database attention
query-cache-hit   925   Number of hits on the query cache
query-cache-miss   22721   Number of misses on the query cache
recursing-answers   0   Number of recursive answers sent out
recursing-questions   0   Number of questions sent to recursor
servfail-packets   0   Number of times a server-failed packet was sent out
tcp-answers   0   Number of answers sent out over TCP
tcp-queries   0   Number of TCP queries received
timedout-packets   0   Number of packets which weren't answered within timeout set
udp-answers   13428   Number of answers sent out over UDP
udp-queries   13428   Number of UDP queries received
udp4-answers   13428   Number of IPv4 answers sent out over UDP
udp4-queries   13428   Number of IPv4UDP queries received
udp6-answers   0   Number of IPv6 answers sent out over UDP
udp6-queries   0   Number of IPv6 UDP queries received
</Section>

Labels: dns

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