vdr-plugin-restfulapi/recordingvalidate.cpp at master · yavdr/vdr-plugin-restfulapi · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
#include "recordingvalidate.h"

#include "recordinganalysis.h"
#include "recordingexecution.h"
#include "recordingmutation.h"
#include "tools.h"

#include <cxxtools/jsonserializer.h>

#include <string>

namespace {

bool parseLongLong(const std::string& value, long long& result)
{
  if (value.empty())
    return false;

  try {
    std::size_t parsed = 0;
    result = std::stoll(value, &parsed, 10);
    return parsed == value.size();
  }
  catch (...) {
    return false;
  }
}

std::vector<std::string> constraintNames(
  const std::vector<RecordingConstraint>& constraints)
{
  std::vector<std::string> names;
  for (RecordingConstraint constraint : constraints)
    names.push_back(RecordingConstraintName(constraint));
  return names;
}

}

void RecordingTrashValidateResponder::reply(
  std::ostream& out,
  cxxtools::http::Request& request,
  cxxtools::http::Reply& reply)
{
  QueryHandler::addHeader(reply);

  if (request.method() == "OPTIONS") {
    reply.addHeader("Allow", "POST");
    reply.httpReturn(200, "OK");
    return;
  }

  if (request.method() != "POST") {
    reply.httpReturn(501, "Only POST method is supported by the /recordings/trash/validate service.");
    return;
  }

  QueryHandler query("/recordings/trash/validate", request);
  const std::string recordingFile = query.getBodyAsString("file");
  const std::string recordingsStateText =
    query.getBodyAsString("revision_recordings_state");
  const std::string timersStateText =
    query.getBodyAsString("revision_timers_state");

  long long recordingsState = 0;
  long long timersState = 0;

  if (recordingFile.empty()) {
    reply.httpReturn(400, "Recording file is missing.");
    return;
  }

  if (!parseLongLong(recordingsStateText, recordingsState) ||
      !parseLongLong(timersStateText, timersState)) {
    reply.httpReturn(400, "Recording revision is missing or invalid.");
    return;
  }

  RecordingMutationPolicy policy;
  policy.allowRecordingHandlerStop = query.getBodyAsBool("allow_recording_handler_stop");
  policy.allowReplayStop = query.getBodyAsBool("allow_replay_stop");
  policy.allowLocalTimerStop = query.getBodyAsBool("allow_local_timer_stop");
  policy.allowRemoteTimerStop = query.getBodyAsBool("allow_remote_timer_stop");

  VdrRecordingLookup recordingLookup;
  VdrRecordingReplayLookup replayLookup;
  VdrRecordingHandlerLookup recordingHandlerLookup;
  VdrRecordingLocalTimerLookup localTimerLookup;
  VdrRecordingRemoteTimerLookup remoteTimerLookup;
  VdrRecordingSearchTimerLookup searchTimerLookup;

  RecordingTrashAnalyzer analyzer(
    recordingLookup,
    replayLookup,
    recordingHandlerLookup,
    localTimerLookup,
    remoteTimerLookup,
    searchTimerLookup);

  RecordingMutationPlanner planner;
  RecordingTrashExecutionGate gate(analyzer, planner);

  RecordingMutationRevision expectedRevision;
  expectedRevision.recordingFile = recordingFile;
  expectedRevision.recordingsState = recordingsState;
  expectedRevision.timersState = timersState;

  const RecordingTrashExecutionGateResult result =
    gate.validate(recordingFile, expectedRevision, policy);

  reply.addHeader("Content-Type", "application/json; charset=utf-8");

  cxxtools::JsonSerializer serializer(out);
  serializer.serialize(
    std::string(RecordingTrashExecutionGateStatusName(result.status)),
    "status");
  serializer.serialize(result.recordingFile, "recording_file");
  serializer.serialize(constraintNames(result.blockers), "blockers");
  serializer.serialize(result.warnings, "warnings");
  serializer.serialize(
    result.expectedRevision.recordingFile,
    "expected_revision_recording_file");
  serializer.serialize(
    result.expectedRevision.recordingsState,
    "expected_revision_recordings_state");
  serializer.serialize(
    result.expectedRevision.timersState,
    "expected_revision_timers_state");
  serializer.serialize(
    result.currentRevision.recordingFile,
    "current_revision_recording_file");
  serializer.serialize(
    result.currentRevision.recordingsState,
    "current_revision_recordings_state");
  serializer.serialize(
    result.currentRevision.timersState,
    "current_revision_timers_state");
  serializer.finish();
}