-
Notifications
You must be signed in to change notification settings - Fork 19
/
fetch_genesis.go
91 lines (80 loc) · 2.95 KB
/
fetch_genesis.go
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
// Copyright (C) 2023 Gobalsky Labs Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package node
import (
"context"
"fmt"
"io/ioutil"
"net/http"
"time"
"code.vegaprotocol.io/vega/core/genesis"
tmtypes "github.com/tendermint/tendermint/types"
)
func genesisDocHTTPFromURL(genesisFilePath string) (*tmtypes.GenesisDoc, error) {
ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
defer cancel()
req, err := http.NewRequestWithContext(ctx, http.MethodGet, genesisFilePath, nil)
if err != nil {
return nil, fmt.Errorf("couldn't load genesis file from %s: %w", genesisFilePath, err)
}
resp, err := http.DefaultClient.Do(req)
if err != nil {
return nil, fmt.Errorf("couldn't load genesis file from %s: %w", genesisFilePath, err)
}
defer resp.Body.Close()
jsonGenesis, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
doc, _, err := genesis.FromJSON(jsonGenesis)
if err != nil {
return nil, fmt.Errorf("invalid genesis file from %s: %w", genesisFilePath, err)
}
return doc, nil
}
func httpGenesisDocProvider(networkSelect string) (*tmtypes.GenesisDoc, error) {
genesisFilesRootPath := fmt.Sprintf("https://raw.githubusercontent.com/vegaprotocol/networks/master/%s", networkSelect)
doc, _, err := getGenesisFromRemote(genesisFilesRootPath)
return doc, err
}
func getGenesisFromRemote(genesisFilesRootPath string) (*tmtypes.GenesisDoc, *genesis.State, error) {
jsonGenesis, err := fetchData(fmt.Sprintf("%s/genesis.json", genesisFilesRootPath))
if err != nil {
return nil, nil, fmt.Errorf("couldn't get remote genesis file: %w", err)
}
doc, state, err := genesis.FromJSON(jsonGenesis)
if err != nil {
return nil, nil, fmt.Errorf("couldn't parse genesis file: %w", err)
}
return doc, state, nil
}
func fetchData(path string) ([]byte, error) {
ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
defer cancel()
req, err := http.NewRequestWithContext(ctx, http.MethodGet, path, nil)
if err != nil {
return nil, fmt.Errorf("couldn't build request for %s: %w", path, err)
}
sigResp, err := http.DefaultClient.Do(req)
if err != nil {
return nil, fmt.Errorf("couldn't get response for %s: %w", path, err)
}
defer sigResp.Body.Close()
data, err := ioutil.ReadAll(sigResp.Body)
if err != nil {
return nil, fmt.Errorf("couldn't read response body: %w", err)
}
return data, nil
}