This repository has been archived by the owner on Dec 31, 2022. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 4
/
Copy pathmain.func
225 lines (205 loc) · 8.78 KB
/
main.func
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
;; Storage contract fabric
#include "stdlib.func";
#include "constants.func";
const min_deploy_amount = 50000000;
cell storage_contract_code() asm """ "storage-contract-code.boc" file>B B>boc PUSHREF """;
slice calculate_address_by_stateinit(cell state_init) {
return begin_cell().store_uint(4, 3)
.store_int(0, 8)
.store_uint(cell_hash(state_init), 256)
.end_cell()
.begin_parse();
}
cell build_storage_contract_stateinit(int merkle_hash, int file_size, int rate_per_mb_day,
int max_span, slice client, int torrent_hash) {
cell data = begin_cell()
.store_int(0, 1) ;; active
.store_coins(0) ;; client balance
.store_slice(my_address())
.store_uint(merkle_hash, 256)
.store_uint(file_size, 64)
.store_uint(0, 64) ;; next_proof
.store_coins(rate_per_mb_day)
.store_uint(max_span, 32)
.store_uint(0, 32) ;; last_proof_time
.store_ref(begin_cell()
.store_slice(client)
.store_uint(torrent_hash, 256)
.end_cell())
.end_cell();
cell state_init = begin_cell()
.store_uint(0, 2)
.store_maybe_ref(storage_contract_code())
.store_maybe_ref(data)
.store_uint(0, 1)
.end_cell();
return state_init;
}
() deploy_storage_contract (slice client, int query_id, int file_size, int merkle_hash, int torrent_hash,
int expected_rate, int expected_max_span) impure {
var ds = get_data().begin_parse();
var (wallet_data,
accept_new_contracts?,
rate_per_mb_day,
max_span,
minimal_file_size,
maximal_file_size) = ( ds~load_bits(32 + 32 + 256),
ds~load_int(1),
ds~load_coins(),
ds~load_uint(32),
ds~load_uint(64),
ds~load_uint(64));
throw_unless(error::no_new_contracts, accept_new_contracts?);
throw_unless(error::file_too_small, file_size >= minimal_file_size);
throw_unless(error::file_too_big, file_size <= maximal_file_size);
throw_unless(error::provider_params_changed, expected_rate == rate_per_mb_day);
throw_unless(error::provider_params_changed, expected_max_span == max_span);
cell state_init = build_storage_contract_stateinit(merkle_hash, file_size, rate_per_mb_day,
max_span, client, torrent_hash);
cell msg = begin_cell()
.store_uint(0x18, 6)
.store_slice(calculate_address_by_stateinit(state_init))
.store_coins(0)
.store_uint(4 + 2, 1 + 4 + 4 + 64 + 32 + 1 + 1 + 1)
.store_ref(state_init)
.store_uint(op::offer_storage_contract, 32)
.store_uint(query_id, 64)
.end_cell();
send_raw_message(msg, 64);
}
() recv_internal(int msg_value, cell in_msg_full, slice in_msg_body) impure {
slice cs = in_msg_full.begin_parse();
int flags = cs~load_uint(4);
if (flags & 1) { ;; ignore all bounced messages
return ();
}
slice sender_address = cs~load_msg_addr();
int op = in_msg_body~load_uint(32);
int query_id = in_msg_body~load_uint(64);
if(op == op::offer_storage_contract) {
throw_unless(error::not_enough_money, msg_value >= min_deploy_amount);
;; torrent_info piece_size:uint32 file_size:uint64 root_hash:(## 256) header_size:uint64 header_hash:(## 256)
;; microchunk_hash:(Maybe (## 256)) description:Text = TorrentInfo;
cell torrent_info = in_msg_body~load_ref();
int torrent_hash = cell_hash(torrent_info);
slice info_cs = torrent_info.begin_parse();
info_cs~skip_bits(32);
int file_size = info_cs~load_uint(64);
info_cs~skip_bits(256 + 64 + 256);
throw_unless(error::no_microchunk_hash, info_cs~load_int(1));
int merkle_hash = info_cs.preload_uint(256);
int expected_rate = in_msg_body~load_coins();
int expected_max_span = in_msg_body~load_uint(32);
deploy_storage_contract(sender_address, query_id, file_size, merkle_hash, torrent_hash,
expected_rate, expected_max_span);
return ();
}
if(op == op::storage_contract_terminated) {
return ();
}
if(op == op::update_pubkey) {
if( ~ equal_slice_bits(my_address(), sender_address)) {
return ();
}
var ds = get_data().begin_parse();
var (seqno_subwallet,
_,
non_wallet_data) = ( ds~load_bits(32 + 32),
ds~load_uint(256),
ds);
int new_pubkey = in_msg_body~load_uint(256);
set_data(begin_cell()
.store_slice(seqno_subwallet)
.store_uint(new_pubkey, 256)
.store_slice(non_wallet_data)
.end_cell());
}
if(op == op::update_storage_params) {
if( ~ equal_slice_bits(my_address(), sender_address)) {
return ();
}
var ds = get_data().begin_parse();
var wallet_data = ds~load_bits(32 + 32 + 256);
var( accept_new_contracts?,
rate_per_mb_day,
max_span,
minimal_file_size,
maximal_file_size) = (in_msg_body~load_int(1),
in_msg_body~load_coins(),
in_msg_body~load_uint(32),
in_msg_body~load_uint(64),
in_msg_body~load_uint(64));
set_data(begin_cell()
.store_slice(wallet_data)
.store_int(accept_new_contracts?, 1)
.store_coins(rate_per_mb_day)
.store_uint(max_span, 32)
.store_uint(minimal_file_size, 64)
.store_uint(maximal_file_size, 64)
.end_cell());
}
}
() recv_external(slice in_msg) impure {
var signature = in_msg~load_bits(512);
var cs = in_msg;
var (subwallet_id, valid_until, msg_seqno) = (cs~load_uint(32), cs~load_uint(32), cs~load_uint(32));
throw_if(35, valid_until <= now());
var ds = get_data().begin_parse();
var (stored_seqno,
stored_subwallet,
public_key,
non_wallet_data ) = ( ds~load_uint(32),
ds~load_uint(32),
ds~load_uint(256),
ds);
throw_unless(33, msg_seqno == stored_seqno);
throw_unless(34, subwallet_id == stored_subwallet);
throw_unless(35, check_signature(slice_hash(in_msg), signature, public_key));
accept_message();
cs~touch();
while (cs.slice_refs()) {
var mode = cs~load_uint(8);
send_raw_message(cs~load_ref(), mode);
}
set_data(begin_cell()
.store_uint(stored_seqno + 1, 32)
.store_uint(stored_subwallet, 32)
.store_uint(public_key, 256)
.store_slice(non_wallet_data)
.end_cell());
}
;; Get methods
int seqno() method_id {
return get_data().begin_parse().preload_uint(32);
}
int get_public_key() method_id {
var cs = get_data().begin_parse();
cs~load_uint(64);
return cs.preload_uint(256);
}
;; seqno, subwallet, key
_ get_wallet_params() method_id {
var ds = get_data().begin_parse();
var (stored_seqno, stored_subwallet, public_key) = (ds~load_uint(32), ds~load_uint(32), ds~load_uint(256));
return (stored_seqno, stored_subwallet, public_key);
}
_ get_storage_params() method_id {
var ds = get_data().begin_parse();
var (wallet_data,
accept_new_contracts?,
rate_per_mb_day,
max_span,
minimal_file_size,
maximal_file_size) = ( ds~load_bits(32 + 32 + 256),
ds~load_int(1),
ds~load_coins(),
ds~load_uint(32),
ds~load_uint(64),
ds~load_uint(64));
return (accept_new_contracts?, rate_per_mb_day, max_span, minimal_file_size, maximal_file_size);
}
slice get_storage_contract_address(int merkle_hash, int file_size, slice client, int torrent_hash) method_id {
var (_, rate_per_mb_day, max_span, _, _) = get_storage_params();
cell state_init = build_storage_contract_stateinit(merkle_hash, file_size, rate_per_mb_day, max_span, client, torrent_hash);
return calculate_address_by_stateinit(state_init);
}