[mythtv] Undelete Recoding with Python Bindings

[Casey McGinty]

I'm trying to create a tool that undeletes a recording. I have the
following code working, except the backend does not actually perform the
action*, even though it logs the undelete event, and return code is 0 (i.e.
success)*. Can anyone explain why this isn't working? I've even been using
tcpdump to compare against a working client and the command looks almost
identical.

code sample:

def undelete(rec):
    prog = Program.fromRecorded(rec)
    cmd = BACKEND_SEP.join(['UNDELETE_RECORDING', prog.toString()])
    res = BE.backendCommand(cmd)
    if int(res) != 0:
        raise MythBEError("undelete failed")

The TCP capture is:

14:29:00.447240 IP gandalf.local.33900 > gandalf.local.6543: Flags [P.],
seq 124:176, ack 294442, win 3637, options [nop,nop,TS val 59730401 ecr
59729698], length 52 E..h~. at .@.:~.........l...8...+.....5....... ..i...g"44
QUERY_RECORDING TIMESLOT 3101 20160421070000
14:29:00.447290 IP gandalf.local.6543 > gandalf.local.33900: Flags [.], ack
176, win 342, options [nop,nop,TS val 59730401 ecr 59730401], length 0
E..47. at .@..............l.+...8.....V....... ..i...i.
14:29:00.450204 IP gandalf.local.6543 > gandalf.local.33900: Flags [P.],
seq 294442:294991, ack 176, win 342, options [nop,nop,TS val 59730402 ecr
59730401], length 549 E..Y7. at .@..............l.+...8.....V.......
..i...i.541 OK[]:[]NOVA[]:[]Wild Ways[]:[]Newly established wildlife
corridors offer hope to endangered species around the
world.[]:[]0[]:[]0[]:[]4311[]:[]Science[]:[]3101[]:[]10_1[]:[]KMEB-HD[]:[]KMEB-HD[]:[]3101_20160421070000.mpg[]:[]6259832428[]:[]1461222000[]:[]1461225600[]:[]0[]:[]gandalf[]:[]0[]:[]0[]:[]0[]:[]0[]:[]-3[]:[]99[]:[]0[]:[]15[]:[]6[]:[]1461222000[]:[]1461225630[]:[]5[]:[]Deleted[]:[][]:[]EP00003163[]:[]EP000031630871[]:[][]:[]1461415115[]:[]0[]:[]2016-04-20[]:[]Default[]:[]0[]:[]0[]:[]Default[]:[]1[]:[]19[]:[]1[]:[]0[]:[]0[]:[]0

14:29:00.454521 IP gandalf.local.33900 > gandalf.local.6543: Flags [P.],
seq 176:748, ack 294991, win 3979, options [nop,nop,TS val 59730403 ecr
59730402], length 572 E..p~. at .@.8u.........l...8...+.............
..i...i.564 UNDELETE_RECORDING[]:[]NOVA[]:[]Wild Ways[]:[]Newly established
wildlife corridors offer hope to endangered species around the
world.[]:[]0[]:[]0[]:[]4311[]:[]Science[]:[]3101[]:[]10_1[]:[]KMEB-HD[]:[]KMEB-HD[]:[]3101_20160421070000.mpg[]:[]6259832428[]:[]1461220200[]:[]1461223800[]:[]0[]:[]gandalf[]:[]0[]:[]0[]:[]0[]:[]0[]:[]-3[]:[]99[]:[]0[]:[]15[]:[]6[]:[]1461220200[]:[]1461223830[]:[]5[]:[]Deleted[]:[][]:[]EP00003163[]:[]EP000031630871[]:[][]:[]1461413315[]:[]0.000000[]:[]2016-04-20[]:[]Default[]:[]0[]:[]0[]:[]Default[]:[]1[]:[]19[]:[]1[]:[]0[]:[]0[]:[]0

14:29:00.458981 IP gandalf.local.6543 > gandalf.local.33900: Flags [P.],
seq 294991:295000, ack 748, win 351, options [nop,nop,TS val 59730404 ecr
59730403], length 9 E..=7. at .@..............l.+...8.?..._....... ..i...i.1 0
14:29:00.479246 IP gandalf.local.33900 > gandalf.local.6543: Flags [P.],
seq 748:760, ack 295000, win 3979, options [nop,nop,TS val 59730409 ecr
59730404], length 12 E..@~. at .@.:..........l...8.?.+............. ..i...i.4
DONE

I also get the exact same log output from the backend as I do when the
command is runs correctly in my frontend:

Apr 23 16:13:25 gandalf mythbackend: mythbackend[10514]: I ProcessRequest
mainserver.cpp:1420 (HandleAnnounce) MainServer::ANN Monitor
Apr 23 16:13:25 gandalf mythbackend: mythbackend[10514]: I ProcessRequest
mainserver.cpp:1422 (HandleAnnounce) adding: gandalf as a client (events:
0)
Apr 23 16:13:27 gandalf mythbackend: mythbackend[10514]: I Scheduler
scheduler.cpp:2098 (HandleReschedule) Reschedule requested for CHECK -3 99
0 DoHandleUndelete | NOVA | Wild Ways | Newly established wildlife
corridors offer hope to endangered species around the world. |
EP000031630871
Apr 23 16:13:27 gandalf mythbackend: mythbackend[10514]: I Scheduler
scheduler.cpp:2211 (HandleReschedule) Scheduled 50 items in 0.1 = 0.00
match + 0.00 check + 0.07 place

Can anyone expain why it works on the mythfrontend but not when using the
Python bindings?

Sincerely,
Casey McGinty
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