Bug#920848: dump1090-mutability: no HTTP interface when using --net

[Yves-Alexis Perez <corsac@debian.org>]

Package: dump1090-mutability
Version: 1.15~20180310.4a16df3+dfsg-6
Severity: normal

Hi,

I just tried the Debian package for dump1090-mutability, and it seems
that the HTTP interface doesn't work.

When running with --net and looking at netstat output, I get:

Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       User       Inode      PID/Program name    
tcp        0      0 0.0.0.0:30001           0.0.0.0:*               LISTEN      1000       7079596    12528/dump1090-muta 
tcp        0      0 0.0.0.0:30002           0.0.0.0:*               LISTEN      1000       7079584    12528/dump1090-muta 
tcp        0      0 0.0.0.0:30003           0.0.0.0:*               LISTEN      1000       7079592    12528/dump1090-muta 
tcp        0      0 0.0.0.0:30004           0.0.0.0:*               LISTEN      1000       7079600    12528/dump1090-muta 
tcp        0      0 0.0.0.0:30005           0.0.0.0:*               LISTEN      1000       7079588    12528/dump1090-muta 
tcp        0      0 0.0.0.0:30104           0.0.0.0:*               LISTEN      1000       7079604    12528/dump1090-muta 

but nothing on port 8080. Trying with --net-http-port I get a warning:

dump1090-mutability --net --quiet --net-http-port 8080
warning: --net-http-port not supported in this build, option ignored.
Tue Jan 29 21:18:01 2019 CET  EB_SOURCE EB_VERSION starting up.
Using sample converter: UC8, integer/table path
Found 1 device(s):
0: Realtek, RTL2838UHIDIR, SN: 00000001 (currently selected)
Found Rafael Micro R820T tuner
Max available gain is: 49.60 dB
Setting gain to: 49.60 dB
Gain reported by device: 49.60 dB
Allocating 15 zero-copy buffers

I know the internal webserver is not really recommended, but here it's
more about quick testing than running a long process.

-- System Information:
Debian Release: buster/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (450, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.19.0-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8), LANGUAGE=fr_FR.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages dump1090-mutability depends on:
ii  adduser                           3.118
ii  debconf [debconf-2.0]             1.5.70
ii  libc6                             2.28-5
ii  libjs-excanvas                    0.r3-4
ii  libjs-jquery-ui                   1.12.1+dfsg-5
ii  libjs-jquery-ui-theme-smoothness  1.12.1+dfsg-1
ii  librtlsdr0                        0.6-1
ii  lsb-base                          10.2018112800

Versions of packages dump1090-mutability recommends:
pn  lighttpd  <none>
ii  python    2.7.15-4

dump1090-mutability suggests no packages.

-- debconf information:
  dump1090-mutability/stats-interval: 3600
  dump1090-mutability/invalid-is_number:
  dump1090-mutability/net-bo-port: 30005
  dump1090-mutability/net-bind-address: 127.0.0.1
  dump1090-mutability/invalid-is_port_list:
  dump1090-mutability/run-as-user: dump1090
  dump1090-mutability/invalid-is_port_number:
  dump1090-mutability/invalid-is_unsigned_number:
  dump1090-mutability/net-heartbeat: 60
  dump1090-mutability/invalid-is_signed_int_or_empty:
* dump1090-mutability/auto-start: false
  dump1090-mutability/invalid-is_ipaddrish_or_empty:
  dump1090-mutability/json-interval: 1
  dump1090-mutability/decode-fixcrc: true
  dump1090-mutability/rtlsdr-device:
  dump1090-mutability/invalid-is_number_or_empty:
  dump1090-mutability/rtlsdr-gain: max
  dump1090-mutability/rtlsdr-ppm: 0
  dump1090-mutability/net-bi-port: 30004,30104
  dump1090-mutability/invalid-is_signed_int:
  dump1090-mutability/net-out-size: 500
  dump1090-mutability/net-sbs-port: 30003
  dump1090-mutability/decode-lon:
  dump1090-mutability/json-location-accuracy: approximate
  dump1090-mutability/net-ri-port: 30001
  dump1090-mutability/extra-args:
  dump1090-mutability/decode-lat:
  dump1090-mutability/invalid-is_not_empty:
  dump1090-mutability/invalid-is_non_root_user:
  dump1090-mutability/invalid-is_unsigned_int_or_empty:
  dump1090-mutability/invalid-is_valid_gain:
  dump1090-mutability/decode-max-range: 300
  dump1090-mutability/net-ro-port: 30002
  dump1090-mutability/invalid-is_unsigned_int:
  dump1090-mutability/log-decoded-messages: false
  dump1090-mutability/net-buffer: 262144
  dump1090-mutability/invalid-is_positive_int:
  dump1090-mutability/log-file: /var/log/dump1090-mutability.log
  dump1090-mutability/use-lighttpd: true
  dump1090-mutability/json-dir: /run/dump1090-mutability
  dump1090-mutability/net-out-interval: 1