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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
// @flow
import JsonRpcWs, { InvalidReply } from './jsonrpc-ws-ipc';
import { object, string, arrayOf, number } from 'validated/schema';
import { validate } from 'validated/object';
import type { Coordinate2d } from '../types';
export type AccountData = {paid_until: string};
export type AccountNumber = string;
export type Ip = string;
export type Location = {
latlong: Coordinate2d,
country: string,
city: string,
};
const LocationSchema = object({
latlong: arrayOf(number),
country: string,
city: string,
});
export type SecurityState = 'secured' | 'unsecured';
export type BackendState = {
state: SecurityState,
target_state: SecurityState,
};
export interface IpcFacade {
setConnectionString(string): void,
getAccountData(AccountNumber): Promise<AccountData>,
getAccount(): Promise<?AccountNumber>,
setAccount(accountNumber: AccountNumber): Promise<void>,
setCountry(address: string): Promise<void>,
connect(): Promise<void>,
disconnect(): Promise<void>,
getIp(): Promise<Ip>,
getLocation(): Promise<Location>,
getState(): Promise<BackendState>,
registerStateListener((BackendState) => void): void,
}
export class RealIpc implements IpcFacade {
_ipc: JsonRpcWs;
constructor(connectionString: string) {
this._ipc = new JsonRpcWs(connectionString);
}
setConnectionString(str: string) {
this._ipc.setConnectionString(str);
}
getAccountData(accountNumber: AccountNumber): Promise<AccountData> {
return this._ipc.send('get_account_data', accountNumber)
.then(raw => {
if (typeof raw === 'object' && raw && raw.paid_until) {
return raw;
} else {
throw new InvalidReply(raw, 'Expected an object with paid_until');
}
});
}
getAccount(): Promise<?AccountNumber> {
return this._ipc.send('get_account')
.then( raw => {
if (raw === undefined || raw === null || typeof raw === 'string') {
return raw;
} else {
throw new InvalidReply(raw);
}
});
}
setAccount(accountNumber: AccountNumber): Promise<void> {
return this._ipc.send('set_account', accountNumber)
.then(this._ignoreResponse);
}
_ignoreResponse(_response: mixed): void {
return;
}
setCountry(address: string): Promise<void> {
return this._ipc.send('set_country', address)
.then(this._ignoreResponse);
}
connect(): Promise<void> {
return this._ipc.send('connect')
.then(this._ignoreResponse);
}
disconnect(): Promise<void> {
return this._ipc.send('disconnect')
.then(this._ignoreResponse);
}
getIp(): Promise<Ip> {
return this._ipc.send('get_ip')
.then(raw => {
if (typeof raw === 'string' && raw) {
return raw;
} else {
throw new InvalidReply(raw, 'Expected a string');
}
});
}
getLocation(): Promise<Location> {
return this._ipc.send('get_location')
.then(raw => {
try {
const validated: any = validate(LocationSchema, raw);
return (validated: Location);
} catch (e) {
throw new InvalidReply(raw, e);
}
});
}
getState(): Promise<BackendState> {
return this._ipc.send('get_state')
.then(raw => {
return this._parseBackendState(raw);
});
}
_parseBackendState(raw: mixed): BackendState {
if (raw && raw.state && raw.target_state) {
const uncheckedRaw: any = raw;
const states: Array<SecurityState> = ['secured', 'unsecured'];
const correctState = states.includes(uncheckedRaw.state);
const correctTargetState = states.includes(uncheckedRaw.target_state);
if (!correctState || !correctTargetState) {
throw new InvalidReply(raw);
}
return (uncheckedRaw: BackendState);
} else {
throw new InvalidReply(raw);
}
}
registerStateListener(listener: (BackendState) => void) {
this._ipc.on('new_state', (rawEvent) => {
const parsedEvent : BackendState = this._parseBackendState(rawEvent);
listener(parsedEvent);
});
}
}
|
