-
-
Notifications
You must be signed in to change notification settings - Fork 1.8k
/
format.ts
293 lines (241 loc) · 8.23 KB
/
format.ts
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
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
/**
* @_ignore
*/
import { getAddress, getCreateAddress } from "../address/index.js";
import { Signature } from "../crypto/index.js"
import { accessListify } from "../transaction/index.js";
import {
getBigInt, getNumber, hexlify, isHexString, zeroPadValue,
assert, assertArgument
} from "../utils/index.js";
import type {
BlockParams, LogParams,
TransactionReceiptParams, TransactionResponseParams,
} from "./formatting.js";
const BN_0 = BigInt(0);
export type FormatFunc = (value: any) => any;
export function allowNull(format: FormatFunc, nullValue?: any): FormatFunc {
return (function(value: any) {
if (value == null) { return nullValue; }
return format(value);
});
}
export function arrayOf(format: FormatFunc): FormatFunc {
return ((array: any) => {
if (!Array.isArray(array)) { throw new Error("not an array"); }
return array.map((i) => format(i));
});
}
// Requires an object which matches a fleet of other formatters
// Any FormatFunc may return `undefined` to have the value omitted
// from the result object. Calls preserve `this`.
export function object(format: Record<string, FormatFunc>, altNames?: Record<string, Array<string>>): FormatFunc {
return ((value: any) => {
const result: any = { };
for (const key in format) {
let srcKey = key;
if (altNames && key in altNames && !(srcKey in value)) {
for (const altKey of altNames[key]) {
if (altKey in value) {
srcKey = altKey;
break;
}
}
}
try {
const nv = format[key](value[srcKey]);
if (nv !== undefined) { result[key] = nv; }
} catch (error) {
const message = (error instanceof Error) ? error.message: "not-an-error";
assert(false, `invalid value for value.${ key } (${ message })`, "BAD_DATA", { value })
}
}
return result;
});
}
export function formatBoolean(value: any): boolean {
switch (value) {
case true: case "true":
return true;
case false: case "false":
return false;
}
assertArgument(false, `invalid boolean; ${ JSON.stringify(value) }`, "value", value);
}
export function formatData(value: string): string {
assertArgument(isHexString(value, true), "invalid data", "value", value);
return value;
}
export function formatHash(value: any): string {
assertArgument(isHexString(value, 32), "invalid hash", "value", value);
return value;
}
export function formatUint256(value: any): string {
if (!isHexString(value)) {
throw new Error("invalid uint256");
}
return zeroPadValue(value, 32);
}
const _formatLog = object({
address: getAddress,
blockHash: formatHash,
blockNumber: getNumber,
data: formatData,
index: getNumber,
removed: allowNull(formatBoolean, false),
topics: arrayOf(formatHash),
transactionHash: formatHash,
transactionIndex: getNumber,
}, {
index: [ "logIndex" ]
});
export function formatLog(value: any): LogParams {
return _formatLog(value);
}
const _formatBlock = object({
hash: allowNull(formatHash),
parentHash: formatHash,
number: getNumber,
timestamp: getNumber,
nonce: allowNull(formatData),
difficulty: getBigInt,
gasLimit: getBigInt,
gasUsed: getBigInt,
miner: allowNull(getAddress),
extraData: formatData,
baseFeePerGas: allowNull(getBigInt)
});
export function formatBlock(value: any): BlockParams {
const result = _formatBlock(value);
result.transactions = value.transactions.map((tx: string | TransactionResponseParams) => {
if (typeof(tx) === "string") { return tx; }
return formatTransactionResponse(tx);
});
return result;
}
const _formatReceiptLog = object({
transactionIndex: getNumber,
blockNumber: getNumber,
transactionHash: formatHash,
address: getAddress,
topics: arrayOf(formatHash),
data: formatData,
index: getNumber,
blockHash: formatHash,
}, {
index: [ "logIndex" ]
});
export function formatReceiptLog(value: any): LogParams {
return _formatReceiptLog(value);
}
const _formatTransactionReceipt = object({
to: allowNull(getAddress, null),
from: allowNull(getAddress, null),
contractAddress: allowNull(getAddress, null),
// should be allowNull(hash), but broken-EIP-658 support is handled in receipt
index: getNumber,
root: allowNull(hexlify),
gasUsed: getBigInt,
logsBloom: allowNull(formatData),
blockHash: formatHash,
hash: formatHash,
logs: arrayOf(formatReceiptLog),
blockNumber: getNumber,
//confirmations: allowNull(getNumber, null),
cumulativeGasUsed: getBigInt,
effectiveGasPrice: allowNull(getBigInt),
status: allowNull(getNumber),
type: allowNull(getNumber, 0)
}, {
effectiveGasPrice: [ "gasPrice" ],
hash: [ "transactionHash" ],
index: [ "transactionIndex" ],
});
export function formatTransactionReceipt(value: any): TransactionReceiptParams {
return _formatTransactionReceipt(value);
}
export function formatTransactionResponse(value: any): TransactionResponseParams {
// Some clients (TestRPC) do strange things like return 0x0 for the
// 0 address; correct this to be a real address
if (value.to && getBigInt(value.to) === BN_0) {
value.to = "0x0000000000000000000000000000000000000000";
}
const result = object({
hash: formatHash,
type: (value: any) => {
if (value === "0x" || value == null) { return 0; }
return getNumber(value);
},
accessList: allowNull(accessListify, null),
blockHash: allowNull(formatHash, null),
blockNumber: allowNull(getNumber, null),
transactionIndex: allowNull(getNumber, null),
//confirmations: allowNull(getNumber, null),
from: getAddress,
// either (gasPrice) or (maxPriorityFeePerGas + maxFeePerGas) must be set
gasPrice: allowNull(getBigInt),
maxPriorityFeePerGas: allowNull(getBigInt),
maxFeePerGas: allowNull(getBigInt),
gasLimit: getBigInt,
to: allowNull(getAddress, null),
value: getBigInt,
nonce: getNumber,
data: formatData,
creates: allowNull(getAddress, null),
chainId: allowNull(getBigInt, null)
}, {
data: [ "input" ],
gasLimit: [ "gas" ]
})(value);
// If to and creates are empty, populate the creates from the value
if (result.to == null && result.creates == null) {
result.creates = getCreateAddress(result);
}
// @TODO: Check fee data
// Add an access list to supported transaction types
if ((value.type === 1 || value.type === 2) && value.accessList == null) {
result.accessList = [ ];
}
// Compute the signature
if (value.signature) {
result.signature = Signature.from(value.signature);
} else {
result.signature = Signature.from(value);
}
// Some backends omit ChainId on legacy transactions, but we can compute it
if (result.chainId == null) {
const chainId = result.signature.legacyChainId;
if (chainId != null) { result.chainId = chainId; }
}
// @TODO: check chainID
/*
if (value.chainId != null) {
let chainId = value.chainId;
if (isHexString(chainId)) {
chainId = BigNumber.from(chainId).toNumber();
}
result.chainId = chainId;
} else {
let chainId = value.networkId;
// geth-etc returns chainId
if (chainId == null && result.v == null) {
chainId = value.chainId;
}
if (isHexString(chainId)) {
chainId = BigNumber.from(chainId).toNumber();
}
if (typeof(chainId) !== "number" && result.v != null) {
chainId = (result.v - 35) / 2;
if (chainId < 0) { chainId = 0; }
chainId = parseInt(chainId);
}
if (typeof(chainId) !== "number") { chainId = 0; }
result.chainId = chainId;
}
*/
// 0x0000... should actually be null
if (result.blockHash && getBigInt(result.blockHash) === BN_0) {
result.blockHash = null;
}
return result;
}