-
Notifications
You must be signed in to change notification settings - Fork 5
/
test_transactions.adb
244 lines (226 loc) · 11.6 KB
/
test_transactions.adb
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
-- Copyright (C) 2019-2020 Dmitry Petukhov https://github.com/dgpv
--
-- This file is part of spark-bitcoin-transaction-example
--
-- It is subject to the license terms in the LICENSE file found in the top-level
-- directory of this distribution.
--
-- No part of spark-bitcoin-transaction-example, including this file, may be copied, modified,
-- propagated, or distributed except according to the terms contained in the
-- LICENSE file.
pragma SPARK_Mode(On);
with Ada.Text_IO;
with Bitcoin;
with Bitcoin.Transactions;
with Bitcoin_Like.Data_Accessors;
with Bitcoin_Like.Utils; use Bitcoin_Like.Utils;
with Stdio;
package body Test_Transactions is
package body Byte_Readers is
procedure Read_Byte(Byte: out Byte_Type) is
Two_Chars : String(1..2) := (others => Character'Val(0));
Has_Read : Boolean;
begin
if Bytes_Processed = Natural'Last then
Byte := 0;
Register_Structural_Error("Too much data has been read, transaction cannot be this long");
return;
end if;
Stdio.Char_Readers.Read_Char(Two_Chars(1), Has_Read);
if not Has_Read then
Byte := 0;
Register_Raw_Data_Error(Error_End_of_Stream);
return;
end if;
Stdio.Char_Readers.Read_Char(Two_Chars(2), Has_Read);
if not Has_Read then
Byte := 0;
Register_Raw_Data_Error(Error_Invalid_Data_Encoding);
return;
end if;
if not Is_Hex_Digit(Two_Chars(1)) or not Is_Hex_Digit(Two_Chars(2)) then
Byte := 0;
Register_Raw_Data_Error(Error_Invalid_Data_Encoding);
else
Byte := Hex_To_Byte(Two_Chars);
Ghost_Data_Tape(Bytes_Processed) := Byte;
Increase_Bytes_Processed(1);
end if;
end;
end Byte_Readers;
package body Byte_Writers is
procedure Write_Byte(Byte: in Byte_Type)
is begin
if Bytes_Processed = Natural'Last then
Register_Structural_Error("Too much data has been written, transaction cannot be this long");
return;
end if;
if Bytes_Processed <= Write_Limit then
Increase_Bytes_Processed(1);
else
Register_Raw_Data_Error(Error_Storage_Full);
end if;
end Write_Byte;
end Byte_Writers;
pragma Warnings (Off, "unused variable ""Byte"", in instantiation",
Reason => "Test writer does not use Byte");
package Test_Byte_Writers is new Byte_Writers (Write_Limit => 1);
pragma Warnings (On, "unused variable ""Byte"", in instantiation");
package Data_Readers is new Bitcoin_Like.Data_Accessors.Readers(
Status_Control => Read_Status,
Read_Byte_Procedure => Byte_Readers.Read_Byte
);
package Data_Writers is new Bitcoin_Like.Data_Accessors.Writers(
Status_Control => Write_Status,
Write_Byte_Procedure => Test_Byte_Writers.Write_Byte
);
package Bitcoin_Transactions is new Bitcoin.Transactions(
Data_Readers => Data_Readers,
Data_Writers => Data_Writers
);
use Bitcoin_Transactions;
use Transaction_Model_Types;
use Transactions;
procedure Put_Line_and_Return_Length(The_Line: in String; Result_Length: out Natural)
is begin
Ada.Text_IO.Put_Line(The_Line);
Result_Length := The_Line'Length;
end;
procedure Put_Line_of_Chars(Char: in Character; Num_Chars: in Natural)
is begin
for Index in 1..Num_Chars loop
Ada.Text_IO.Put(Char);
pragma Loop_Invariant(Index <= Num_Chars); -- otherwise prover cannot unroll loop
end loop;
Ada.Text_IO.Put(ASCII.LF);
end;
procedure Test_Transaction is
Transaction : Transaction_Type;
Lock_Time : Lock_Time_Variant;
String_Buffer : String(1..8192) := (others => ' ');
String_Buffer_Max_Size: constant Natural := 8192;
String_Buffer_Limit : Natural range 1..String_Buffer_Max_Size;
Input: Inputs.Input_Type;
Output: Outputs.Output_Type;
Input_Witness: Input_Witnesses.Input_Witness_Type;
Stack_Item: Input_Witnesses.Input_Witness_Stack_Item_Type;
Prev_Line_Length: Natural;
begin
Transactions.Deserialize(Transaction);
if Read_Status.Got_Error then
Ada.Text_IO.Put_Line("Transaction is invalid after deserialize");
if Read_Status.Got_Raw_Data_Error then
Ada.Text_IO.Put_Line(
"Data read error " & Reader_Error_Code_Type'Image(Read_Status.Raw_Data_Error_Code)
);
elsif Read_Status.Got_Structural_Error then
pragma Assert (Read_Status.Structural_Error_Message'Length > 0);
Ada.Text_IO.Put_Line("Deserialization error ");
Ada.Text_IO.Put_Line(Read_Status.Structural_Error_Message);
else
raise Program_Error;
end if;
Ada.Text_IO.Put_Line("consumed bytes: " & Positive'Image(Read_Status.Bytes_Processed));
Ada.Text_IO.Put_Line(
"last processed data tag: " & Tag_Type'Image(Read_Status.Current_Data_Tag)
);
else
Ada.Text_IO.Put_Line("Deserialized successfully");
Ada.Text_IO.Put_Line("");
Put_Line_and_Return_Length(
"Transaction version: " & Version_Type'Image(Transaction_Version(Transaction)), Prev_Line_Length);
Put_Line_of_Chars('-', Prev_Line_Length);
Ada.Text_IO.Put_Line("");
Put_Line_and_Return_Length(
"Number of inputs: " & Natural'Image(Transaction_Inputs_Count(Transaction)), Prev_Line_Length);
Put_Line_of_Chars('-', Prev_Line_Length);
Ada.Text_IO.Put_Line("");
for Input_Index in Transaction_Inputs(Transaction)'Range loop
pragma Loop_Invariant(Input_Index <= Input_Array_Length_Type'Last);
-- Set line length, otherwise Set_Col's precondition will fail
-- We need to do this inside the loop, because this property is lost on next iteration
-- I guess we can add a loop invariant instead, but this is simpler.
Ada.Text_IO.Set_Line_Length(0);
Input := Transaction_Inputs(Transaction)(Input_Index);
Ada.Text_IO.Put_Line("Input " & Input_Index_Type'Image(Input_Index));
String_Buffer_Limit := Input.Previous_Output_Point.Txid'Length * 2;
Byte_Array_To_Hex_Reverse(
Byte_Array_Type(Input.Previous_Output_Point.Txid), String_Buffer(1..String_Buffer_Limit));
Ada.Text_IO.Set_Col(4);
Ada.Text_IO.Put_Line(
"Prevout: " & String_Buffer(1..String_Buffer_Limit) & ":"
& Previous_Output_Index_Type'Image(Input.Previous_Output_Point.Index));
Ada.Text_IO.Set_Col(4);
if Signature_Scripts.Script_Length(Input.Signature_Script) > 0 then
String_Buffer_Limit := Signature_Scripts.Script_Length(Input.Signature_Script) * 2;
Byte_Array_To_Hex(
Byte_Array_Type(Signature_Scripts.Script_Data(Input.Signature_Script)),
String_Buffer(1..String_Buffer_Limit));
Ada.Text_IO.Put_Line("Signature script: " & String_Buffer(1..String_Buffer_Limit));
else
Ada.Text_IO.Put_Line("Signature script: empty");
end if;
if Transaction_Has_Witness(Transaction) then
Ada.Text_IO.Set_Col(4);
Input_Witness := Transaction_Input_Witness(Transaction, Input_Index);
if Input_Witnesses.Is_Input_Witness_Empty(Input_Witness) then
Ada.Text_IO.Put_Line("Witness is empty");
else
String_Buffer_Limit := P2WSH_Scripts.Script_Length(Input_Witness.Script) * 2;
Byte_Array_To_Hex(
Byte_Array_Type(P2WSH_Scripts.Script_Data(Input_Witness.Script)),
String_Buffer(1..String_Buffer_Limit));
Ada.Text_IO.Put_Line("Witness script: " & String_Buffer(1..String_Buffer_Limit));
Ada.Text_IO.Set_Col(4);
Ada.Text_IO.Put_Line("Witness data: ");
Ada.Text_IO.Set_Col(8);
for Stack_Item_Index in Input_Witnesses.Input_Witness_Stack_Items(Input_Witness.Stack)'Range loop
pragma Loop_Invariant(Stack_Item_Index <= Input_Witnesses.Input_Witness_Stack_Length_Type'Last);
pragma Assert (Input_Witnesses.Input_Witness_Data_Blob_Length_Type'Last / 2 < String_Buffer_Max_Size);
Stack_Item := Input_Witnesses.Input_Witness_Stack_Items(Input_Witness.Stack)(Stack_Item_Index);
String_Buffer_Limit := Input_Witnesses.Input_Witness_Stack_Item_Size(Stack_Item) * 2;
Byte_Array_To_Hex(
Byte_Array_Type(Input_Witnesses.Input_Witness_Stack_Item_Data(Stack_Item)),
String_Buffer(1..String_Buffer_Limit));
Ada.Text_IO.Put_Line(String_Buffer(1..String_Buffer_Limit));
end loop;
end if;
end if;
Ada.Text_IO.Put_Line("");
end loop;
Put_Line_and_Return_Length("Number of outputs: " & Natural'Image(Transaction_Outputs_Count(Transaction)), Prev_Line_Length);
Put_Line_of_Chars('-', Prev_Line_Length);
Ada.Text_IO.Put_Line("");
for Output_Index in Transaction_Outputs(Transaction)'Range loop
pragma Loop_Invariant(Output_Index <= Output_Array_Length_Type'Last);
Ada.Text_IO.Set_Line_Length(0);
Output := Transaction_Outputs(Transaction)(Output_Index);
Ada.Text_IO.Put_Line("Output " & Output_Index_Type'Image(Output_Index));
Ada.Text_IO.Set_Col(4);
Ada.Text_IO.Put_Line("Value: " & Bitcoin.Satoshi_Type'Image(Output.Value));
String_Buffer_Limit := Pubkey_Scripts.Script_Length(Output.Pubkey_Script) * 2;
Byte_Array_To_Hex(
Byte_Array_Type(Pubkey_Scripts.Script_Data(Output.Pubkey_Script)),
String_Buffer(1..String_Buffer_Limit));
Ada.Text_IO.Set_Col(4);
Ada.Text_IO.Put_Line(
"Pubkey script: "
& String_Buffer(1..String_Buffer_Limit));
Ada.Text_IO.Put_Line("");
end loop;
Lock_Time := Transaction_Lock_Time(Transaction);
case Lock_Time.Kind is
when Lock_Time_Unlocked => Put_Line_and_Return_Length("Not timelocked", Prev_Line_Length);
when Lock_Time_Block_Number =>
Put_Line_and_Return_Length(
"Timelocked by block " & Lock_Time_Block_Number_Type'Image(Lock_Time.Block_Number),
Prev_Line_Length);
when Lock_Time_Timestamp =>
Put_Line_and_Return_Length(
"Timelocked by timestamp" & Lock_Time_Timestamp_Type'Image(Lock_Time.Timestamp),
Prev_Line_Length);
end case;
Put_Line_of_Chars('-', Prev_Line_Length);
end if;
end Test_Transaction;
end Test_Transactions;