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Knot projects
Knot DNS
Commits
c9419784
Commit
c9419784
authored
Nov 07, 2016
by
Filip Siroky
Committed by
Daniel Salzman
Dec 29, 2016
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python: add statistics over HTTP/HTTPS script
parent
41a32249
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python/stats_http.py
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c9419784
#!/usr/bin/env python3
"""Simple program for exposing statistics from Knot DNS over HTTP/HTTPS."""
import
http.server
import
libknot.control
import
json
import
ssl
import
time
# Configuration.
#libknot.control.load_lib("../src/.libs/libknot.so")
ctl_socket
=
"/tmp/knot.sock"
ctl_timeout
=
2
ctl_flags
=
""
# set "F" for all supported counters.
http_host
=
"127.0.0.1"
http_port
=
8080
ssl_enable
=
False
ssl_keyfile
=
"./mykey.key"
ssl_certfile
=
"./mycert.crt"
class
StatsServer
(
http
.
server
.
BaseHTTPRequestHandler
):
def
do_GET
(
self
):
self
.
send_response
(
200
)
self
.
send_header
(
"Content-type"
,
"text/html"
)
self
.
end_headers
()
# Connect to Knot server.
ctl
=
libknot
.
control
.
KnotCtl
()
ctl
.
connect
(
ctl_socket
)
ctl
.
set_timeout
(
ctl_timeout
)
# Get global metrics.
global_stats
=
dict
()
try
:
ctl
.
send_block
(
cmd
=
"stats"
,
flags
=
ctl_flags
)
global_stats
=
ctl
.
receive_stats
()
except
:
pass
# Get zone metrics.
zone_stats
=
dict
()
try
:
ctl
.
send_block
(
cmd
=
"zone-stats"
,
flags
=
ctl_flags
)
zone_stats
=
ctl
.
receive_stats
()
except
:
pass
# Disconnect from the server.
ctl
.
send
(
libknot
.
control
.
KnotCtlType
.
END
)
ctl
.
close
()
# Publish the stats.
stats
=
{
**
global_stats
,
**
zone_stats
}
self
.
wfile
.
write
(
bytes
(
json
.
dumps
(
stats
,
indent
=
4
,
sort_keys
=
True
),
"utf-8"
))
httpd
=
http
.
server
.
HTTPServer
((
http_host
,
http_port
),
StatsServer
)
if
ssl_enable
:
httpd
.
socket
=
ssl
.
wrap_socket
(
httpd
.
socket
,
keyfile
=
ssl_keyfile
,
certfile
=
ssl_certfile
,
server_side
=
True
)
print
(
"%s: HTTP%s Server Start - %s:%s"
%
(
time
.
asctime
(),
"S"
if
ssl_enable
else
""
,
http_host
,
http_port
))
try
:
httpd
.
serve_forever
()
except
KeyboardInterrupt
:
pass
httpd
.
server_close
()
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