-
Notifications
You must be signed in to change notification settings - Fork 0
/
index.js
253 lines (226 loc) · 8.68 KB
/
index.js
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
import fetch from "node-fetch";
const EXPLORER_API_URL = "https://api-testnet.ergoplatform.com/";
const MINT_ADDRESS = "3WycHxEz8ExeEWpUBwvu1FKrpY8YQCiH1S9PfnAvBX1K73BXBXZa";
export const resolve_ergoname = async (name, explorer_url = EXPLORER_API_URL) => {
let token_data = await create_token_data(name, explorer_url);
if (token_data == null) {
return null;
}
let token_id = await get_asset_minted_at_address(token_data, explorer_url);
let token_transactions = await get_token_transaction_data(token_id, explorer_url);
let token_last_transaction = await get_last_transaction_for_token(token_transactions);
let token_current_box_id = await get_box_id_from_token_data(token_last_transaction);
let address = await get_box_address(token_current_box_id, explorer_url);
return address;
}
export const check_already_registered = async (name, explorer_url = EXPLORER_API_URL) => {
let address = await resolve_ergoname(name, explorer_url);
if (address == null) {
return false;
}
return true;
}
export const check_name_valid = async (name) => {
for (let i=0; i<name.length; i++) {
let charCode = name.charCodeAt(i);
if (charCode <= 44) {
return false;
} else if (charCode == 47) {
return false;
} else if (charCode >= 58 && charCode <= 94) {
return false;
} else if (charCode == 96) {
return false;
} else if (charCode >= 123 && charCode <= 125) {
return false;
} else if (charCode >= 127) {
return false;
}
}
return true;
}
export const get_block_id_registered = async (name, explorer_url = EXPLORER_API_URL) => {
let token_data = await create_token_data(name, explorer_url);
if (token_data == null) {
return null;
}
let token_id = await get_asset_minted_at_address(token_data, explorer_url);
let token_transactions = await get_token_transaction_data(token_id, explorer_url);
let token_first_transaction = await get_first_transaction_for_token(token_transactions);
let block_id = await get_block_id_from_transaction(token_first_transaction);
return block_id;
}
export const get_block_registered = async (name, explorer_url = EXPLORER_API_URL) => {
let block_id = await get_block_id_registered(name, explorer_url);
if (block_id == null) {
return null;
}
let block_data = await get_block_by_id(block_id, explorer_url);
let height = await get_height_from_block(block_data);
return height;
}
export const get_timestamp_registered = async (name, explorer_url = EXPLORER_API_URL) => {
let block_id = await get_block_id_registered(name, explorer_url);
if (block_id == null) {
return null;
}
let block_data = await get_block_by_id(block_id, explorer_url);
let timestamp = await get_timestamp_from_block(block_data);
return timestamp;
}
export const get_date_registered = async (name, explorer_url = EXPLORER_API_URL) => {
let timestamp = await get_timestamp_registered(name, explorer_url);
if (timestamp == null) {
return null;
}
let date = new Date(timestamp);
const options = { year: 'numeric', month: 'numeric', day: 'numeric' };
date = date.toLocaleString('en-US', options);
return date;
}
export const reverse_search = async (address, explorer_url = EXPLORER_API_URL) => {
let token_data = await get_address_tokens(address, explorer_url);
if (token_data.length == 0) {
return null;
}
let valid_tokens = await remove_invalid_tokens(token_data);
let owned_tokens = await check_correct_ownership(valid_tokens);
return owned_tokens;
}
export const get_total_amount_owned = async (address, explorer_url = EXPLORER_API_URL) => {
let owned = await reverse_search(address, explorer_url);
if (owned == null) {
return null;
}
return owned.length;
}
async function create_token_data(name, explorer_url = EXPLORER_API_URL) {
let total_raw = await get_token_data(name, 1, 0, explorer_url);
let total = total_raw.total;
let needed_calls = Math.floor(total / 500) + 1;
let offset = 0;
let token_data = [];
if (total > 0) {
for (let i = 0; i < needed_calls; i++) {
let data = await get_token_data(name, 500, offset, explorer_url);
token_data = token_data.concat(data.items);
offset += 500;
}
return token_data;
}
return null;
}
async function get_token_data(name, limit, offset, explorer_url = EXPLORER_API_URL) {
let url = `${explorer_url}/api/v1/tokens/search?query=${name}&limit=${limit}&offset=${offset}`;
let response = await fetch(url);
let json = await response.json();
return json;
}
async function get_asset_minted_at_address(token_data, explorer_url = EXPLORER_API_URL) {
for (let i = 0; i < token_data.length; i++) {
let token = token_data[i];
let token_id = token.id;
let address = await get_box_address(token_id, explorer_url);
if (address == MINT_ADDRESS) {
return token_id;
};
};
return null;
}
async function get_box_address(box_id, explorer_url = EXPLORER_API_URL) {
let box_data = await get_box_by_id(box_id, explorer_url);
let address = box_data.address;
return address;
}
async function get_box_by_id(box_id, explorer_url = EXPLORER_API_URL) {
let url = `${explorer_url}/api/v1/boxes/${box_id}`;
let response = await fetch(url);
let json = await response.json();
return json;
}
async function get_token_transaction_data(token_id, explorer_url = EXPLORER_API_URL) {
let url = `${explorer_url}/api/v1/assets/search/byTokenId?query=${token_id}`;
let response = await fetch(url);
let json = await response.json();
return json.items;
}
async function get_last_transaction_for_token(token_transactions) {
let latest_transaction = null;
let creation_height = 0;
for (let i = 0; i < token_transactions.length; i++) {
let box_id = token_transactions[i].boxId;
let box_info = await get_box_by_id(box_id);
if (box_info.creationHeight > creation_height) {
creation_height = box_info.creationHeight;
latest_transaction = token_transactions[i];
};
};
return latest_transaction;
}
async function get_first_transaction_for_token(token_transactions) {
let latest_transaction = null;
let creation_height = null;
for (let i = 0; i < token_transactions.length; i++) {
let box_id = token_transactions[i].boxId;
let box_info = await get_box_by_id(box_id);
if ((box_info.creationHeight < creation_height) || (creation_height == null)) {
creation_height = box_info.creationHeight;
latest_transaction = token_transactions[i];
};
};
return latest_transaction;
}
async function get_box_id_from_token_data(data) {
return data.boxId;
}
async function get_block_id_from_transaction(data) {
return data.headerId;
}
async function get_block_by_id(block_id, explorer_url = EXPLORER_API_URL) {
let url = `${explorer_url}/api/v1/blocks/${block_id}`;
let response = await fetch(url);
let json = await response.json();
return json;
}
async function get_height_from_block(block_data) {
return block_data.block.header.height;
}
async function get_timestamp_from_block(block_data) {
return block_data.block.header.timestamp;
}
async function get_address_tokens(address, explorer_url = EXPLORER_API_URL) {
let balance = await get_address_confirmed_balance(address, explorer_url);
let tokens = balance.tokens;
return tokens;
}
async function get_address_confirmed_balance(address, explorer_url = EXPLORER_API_URL) {
let url = `${explorer_url}/api/v1/addresses/${address}/balance/confirmed`;
let response = await fetch(url);
let json = await response.json();
return json;
}
async function remove_invalid_tokens(token_data) {
for (let i = 0; i < token_data.length; i++) {
let token = token_data[i];
let token_name = token.name;
if (await check_name_valid(token_name) == false) {
token_data.splice(i, 1);
i--;
}
}
return token_data;
}
async function check_correct_ownership(token_data) {
for (let i = 0; i < token_data.length; i++) {
let token = token_data[i];
let token_id = token.tokenId;
let token_transactions = await get_token_transaction_data(token_id);
let first_transaction = await get_first_transaction_for_token(token_transactions);
let box_id = await get_box_id_from_token_data(first_transaction);
if (await get_box_address(box_id) != MINT_ADDRESS) {
token_data.splice(i, 1);
i--;
}
}
return token_data;
}