|
| 1 | +// Copyright 2026 The Tessera authors. All Rights Reserved. |
| 2 | +// |
| 3 | +// Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | +// you may not use this file except in compliance with the License. |
| 5 | +// You may obtain a copy of the License at |
| 6 | +// |
| 7 | +// http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | +// |
| 9 | +// Unless required by applicable law or agreed to in writing, software |
| 10 | +// distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | +// See the License for the specific language governing permissions and |
| 13 | +// limitations under the License. |
| 14 | + |
| 15 | +// migrate-posix is a command-line tool for migrating data from a static-ct |
| 16 | +// compliant log, into a TesseraCT log instance using POSIX storage. |
| 17 | +package main |
| 18 | + |
| 19 | +import ( |
| 20 | + "context" |
| 21 | + "encoding/base64" |
| 22 | + "flag" |
| 23 | + "fmt" |
| 24 | + "io" |
| 25 | + "net/http" |
| 26 | + "net/url" |
| 27 | + "path/filepath" |
| 28 | + "strconv" |
| 29 | + "strings" |
| 30 | + "time" |
| 31 | + |
| 32 | + "github.com/transparency-dev/tessera" |
| 33 | + "github.com/transparency-dev/tessera/api/layout" |
| 34 | + "github.com/transparency-dev/tessera/client" |
| 35 | + "github.com/transparency-dev/tessera/storage/posix" |
| 36 | + tposix_as "github.com/transparency-dev/tessera/storage/posix/antispam" |
| 37 | + "k8s.io/klog/v2" |
| 38 | +) |
| 39 | + |
| 40 | +var ( |
| 41 | + storageDir = flag.String("storage_dir", "", "Path to directory in which to store the migrated data.") |
| 42 | + sourceURL = flag.String("source_url", "", "Base monitoring URL for the source log.") |
| 43 | + numWorkers = flag.Uint("num_workers", 30, "Number of migration worker goroutines.") |
| 44 | + persistentAntispam = flag.Bool("antispam", true, "Set to true to populate antispam storage.") |
| 45 | + antispamBatchSize = flag.Uint("antispam_batch_size", 50000, "Maximum number of antispam rows to insert per batch update.") |
| 46 | + clientHTTPTimeout = flag.Duration("client_http_timeout", 30*time.Second, "Timeout for outgoing HTTP requests") |
| 47 | +) |
| 48 | + |
| 49 | +func main() { |
| 50 | + klog.InitFlags(nil) |
| 51 | + flag.Parse() |
| 52 | + ctx := context.Background() |
| 53 | + |
| 54 | + if *storageDir == "" { |
| 55 | + klog.Exit("--storage_dir must be set") |
| 56 | + } |
| 57 | + |
| 58 | + srcURL, err := url.Parse(*sourceURL) |
| 59 | + if err != nil { |
| 60 | + klog.Exitf("Invalid --source_url %q: %v", *sourceURL, err) |
| 61 | + } |
| 62 | + hc := &http.Client{ |
| 63 | + Transport: &http.Transport{ |
| 64 | + MaxIdleConns: int(*numWorkers) * 2, |
| 65 | + MaxIdleConnsPerHost: int(*numWorkers), |
| 66 | + DisableKeepAlives: false, |
| 67 | + }, |
| 68 | + Timeout: *clientHTTPTimeout, |
| 69 | + } |
| 70 | + // TODO(phbnf): This is currently built using the Tessera client lib, with a stand-alone func below for |
| 71 | + // fetching the Static CT entry bundles as they live in an different place. |
| 72 | + // When there's a Static CT client we can probably switch over to using it in here. |
| 73 | + src, err := client.NewHTTPFetcher(srcURL, hc) |
| 74 | + if err != nil { |
| 75 | + klog.Exitf("Failed to create HTTP fetcher: %v", err) |
| 76 | + } |
| 77 | + sourceCP, err := src.ReadCheckpoint(ctx) |
| 78 | + if err != nil { |
| 79 | + klog.Exitf("fetch initial source checkpoint: %v", err) |
| 80 | + } |
| 81 | + // TODO(AlCutter): We should be properly verifying and opening the checkpoint here with the source log's |
| 82 | + // public key. |
| 83 | + bits := strings.Split(string(sourceCP), "\n") |
| 84 | + sourceSize, err := strconv.ParseUint(bits[1], 10, 64) |
| 85 | + if err != nil { |
| 86 | + klog.Exitf("invalid CP size %q: %v", bits[1], err) |
| 87 | + } |
| 88 | + sourceRoot, err := base64.StdEncoding.DecodeString(bits[2]) |
| 89 | + if err != nil { |
| 90 | + klog.Exitf("invalid checkpoint roothash %q: %v", bits[2], err) |
| 91 | + } |
| 92 | + |
| 93 | + // Create our Tessera storage backend: |
| 94 | + cfg := posix.Config{ |
| 95 | + Path: *storageDir, |
| 96 | + } |
| 97 | + driver, err := posix.New(ctx, cfg) |
| 98 | + if err != nil { |
| 99 | + klog.Exitf("Failed to create new POSIX storage driver: %v", err) |
| 100 | + } |
| 101 | + |
| 102 | + opts := tessera.NewMigrationOptions().WithCTLayout() |
| 103 | + // Configure antispam storage, if necessary |
| 104 | + var antispam tessera.Antispam |
| 105 | + if *persistentAntispam { |
| 106 | + as_opts := tposix_as.AntispamOpts{ |
| 107 | + MaxBatchSize: *antispamBatchSize, |
| 108 | + } |
| 109 | + antispam, err = tposix_as.NewAntispam(ctx, filepath.Join(*storageDir, ".state", "antispam"), as_opts) |
| 110 | + if err != nil { |
| 111 | + klog.Exitf("Failed to create new POSIX antispam storage: %v", err) |
| 112 | + } |
| 113 | + opts.WithAntispam(antispam) |
| 114 | + } |
| 115 | + |
| 116 | + m, err := tessera.NewMigrationTarget(ctx, driver, opts) |
| 117 | + if err != nil { |
| 118 | + klog.Exitf("Failed to create MigrationTarget: %v", err) |
| 119 | + } |
| 120 | + |
| 121 | + readEntryBundle := readCTEntryBundle(*sourceURL, hc) |
| 122 | + if err := m.Migrate(context.Background(), *numWorkers, sourceSize, sourceRoot, readEntryBundle); err != nil { |
| 123 | + klog.Exitf("Migrate failed: %v", err) |
| 124 | + } |
| 125 | + |
| 126 | + // TODO(phbnf): This will need extending to identify and copy over the entries from the intermediate cert storage. |
| 127 | + |
| 128 | + // TODO(Tessera #341): wait for antispam follower to complete |
| 129 | + <-make(chan bool) |
| 130 | +} |
| 131 | + |
| 132 | +func readCTEntryBundle(srcURL string, hc *http.Client) func(ctx context.Context, i uint64, p uint8) ([]byte, error) { |
| 133 | + return func(ctx context.Context, i uint64, p uint8) ([]byte, error) { |
| 134 | + up := strings.Replace(layout.EntriesPath(i, p), "entries", "data", 1) |
| 135 | + reqURL, err := url.JoinPath(srcURL, up) |
| 136 | + if err != nil { |
| 137 | + return nil, err |
| 138 | + } |
| 139 | + req, err := http.NewRequestWithContext(ctx, "GET", reqURL, nil) |
| 140 | + if err != nil { |
| 141 | + return nil, err |
| 142 | + } |
| 143 | + rsp, err := hc.Do(req) |
| 144 | + if err != nil { |
| 145 | + return nil, err |
| 146 | + } |
| 147 | + defer func() { |
| 148 | + if err := rsp.Body.Close(); err != nil { |
| 149 | + klog.Warningf("Failed to close response body: %v", err) |
| 150 | + } |
| 151 | + }() |
| 152 | + if rsp.StatusCode != http.StatusOK { |
| 153 | + return nil, fmt.Errorf("GET %q: %v", req.URL.Path, rsp.Status) |
| 154 | + } |
| 155 | + return io.ReadAll(rsp.Body) |
| 156 | + } |
| 157 | +} |
0 commit comments