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
158
159
160
161
162
163
|
/*
This file is part of GNU Taler
(C) 2019-2020 Taler Systems SA
GNU Taler is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* Classes and helpers for error handling specific to wallet operations.
*
* @author Florian Dold <dold@taler.net>
*/
/**
* Imports.
*/
import {
TalerErrorCode,
TalerErrorDetail,
TransactionType,
} from "@gnu-taler/taler-util";
export interface DetailsMap {
[TalerErrorCode.WALLET_PENDING_OPERATION_FAILED]: {
innerError: TalerErrorDetail;
transactionId?: string;
};
[TalerErrorCode.WALLET_EXCHANGE_DENOMINATIONS_INSUFFICIENT]: {
exchangeBaseUrl: string;
};
[TalerErrorCode.WALLET_EXCHANGE_PROTOCOL_VERSION_INCOMPATIBLE]: {
exchangeProtocolVersion: string;
walletProtocolVersion: string;
};
[TalerErrorCode.WALLET_WITHDRAWAL_OPERATION_ABORTED_BY_BANK]: {};
[TalerErrorCode.WALLET_TIPPING_COIN_SIGNATURE_INVALID]: {};
[TalerErrorCode.WALLET_ORDER_ALREADY_CLAIMED]: {
orderId: string;
claimUrl: string;
};
[TalerErrorCode.WALLET_CONTRACT_TERMS_MALFORMED]: {};
[TalerErrorCode.WALLET_CONTRACT_TERMS_SIGNATURE_INVALID]: {
merchantPub: string;
orderId: string;
};
[TalerErrorCode.WALLET_CONTRACT_TERMS_BASE_URL_MISMATCH]: {
baseUrlForDownload: string;
baseUrlFromContractTerms: string;
};
[TalerErrorCode.WALLET_INVALID_TALER_PAY_URI]: {
talerPayUri: string;
};
[TalerErrorCode.WALLET_UNEXPECTED_REQUEST_ERROR]: {};
[TalerErrorCode.WALLET_UNEXPECTED_EXCEPTION]: {};
[TalerErrorCode.WALLET_BANK_INTEGRATION_PROTOCOL_VERSION_INCOMPATIBLE]: {};
[TalerErrorCode.WALLET_CORE_API_OPERATION_UNKNOWN]: {};
[TalerErrorCode.WALLET_HTTP_REQUEST_THROTTLED]: {};
[TalerErrorCode.WALLET_NETWORK_ERROR]: {};
[TalerErrorCode.WALLET_RECEIVED_MALFORMED_RESPONSE]: {};
[TalerErrorCode.WALLET_EXCHANGE_COIN_SIGNATURE_INVALID]: {};
[TalerErrorCode.WALLET_WITHDRAWAL_GROUP_INCOMPLETE]: {};
[TalerErrorCode.WALLET_CORE_NOT_AVAILABLE]: {};
[TalerErrorCode.GENERIC_UNEXPECTED_REQUEST_ERROR]: {};
}
type ErrBody<Y> = Y extends keyof DetailsMap ? DetailsMap[Y] : never;
export function makeErrorDetail<C extends TalerErrorCode>(
code: C,
detail: ErrBody<C>,
hint?: string,
): TalerErrorDetail {
// FIXME: include default hint?
return { code, hint, ...detail };
}
export function makePendingOperationFailedError(
innerError: TalerErrorDetail,
tag: TransactionType,
uid: string,
): TalerError {
return TalerError.fromDetail(TalerErrorCode.WALLET_PENDING_OPERATION_FAILED, {
innerError,
transactionId: `${tag}:${uid}`,
});
}
export class TalerError<T = any> extends Error {
errorDetail: TalerErrorDetail & T;
private constructor(d: TalerErrorDetail & T) {
super();
this.errorDetail = d;
Object.setPrototypeOf(this, TalerError.prototype);
}
static fromDetail<C extends TalerErrorCode>(
code: C,
detail: ErrBody<C>,
hint?: string,
): TalerError {
// FIXME: include default hint?
return new TalerError<unknown>({ code, hint, ...detail });
}
static fromUncheckedDetail(d: TalerErrorDetail): TalerError {
return new TalerError<unknown>({ ...d });
}
static fromException(e: any): TalerError {
const errDetail = getErrorDetailFromException(e);
return new TalerError(errDetail);
}
hasErrorCode<C extends keyof DetailsMap>(
code: C,
): this is TalerError<DetailsMap[C]> {
return this.errorDetail.code === code;
}
}
/**
* Convert an exception (or anything that was thrown) into
* a TalerErrorDetail object.
*/
export function getErrorDetailFromException(e: any): TalerErrorDetail {
if (e instanceof TalerError) {
return e.errorDetail;
}
if (e instanceof Error) {
const err = makeErrorDetail(
TalerErrorCode.WALLET_UNEXPECTED_EXCEPTION,
{
stack: e.stack,
},
`unexpected exception (message: ${e.message})`,
);
return err;
}
// Something was thrown that is not even an exception!
// Try to stringify it.
let excString: string;
try {
excString = e.toString();
} catch (e) {
// Something went horribly wrong.
excString = "can't stringify exception";
}
const err = makeErrorDetail(
TalerErrorCode.WALLET_UNEXPECTED_EXCEPTION,
{},
`unexpected exception (not an exception, ${excString})`,
);
return err;
}
|
