|
| 1 | +package commands |
| 2 | + |
| 3 | +import ( |
| 4 | + "fmt" |
| 5 | + "io" |
| 6 | + "strings" |
| 7 | + |
| 8 | + cmds "github.com/bittorrent/go-btfs-cmds" |
| 9 | + "github.com/bittorrent/go-btfs/core/commands/cmdenv" |
| 10 | + "github.com/ipfs/go-cid" |
| 11 | + "github.com/ipfs/go-datastore" |
| 12 | + "github.com/ipfs/go-datastore/query" |
| 13 | +) |
| 14 | + |
| 15 | +const ( |
| 16 | + SizeOptionName = "size" |
| 17 | + batchOptionName = "batch" |
| 18 | +) |
| 19 | + |
| 20 | +const ( |
| 21 | + FilterKeyPrefix = "/gateway/filter/cid" |
| 22 | +) |
| 23 | + |
| 24 | +const ( |
| 25 | + cidSeparator = "," |
| 26 | +) |
| 27 | + |
| 28 | +var CidStoreCmd = &cmds.Command{ |
| 29 | + Helptext: cmds.HelpText{ |
| 30 | + Tagline: "Manage cid stored in this node but don't want to be get by gateway api.", |
| 31 | + ShortDescription: "Commands for generate, update, get and list access-keys stored in this node.", |
| 32 | + }, |
| 33 | + Subcommands: map[string]*cmds.Command{ |
| 34 | + "add": addCidCmd, |
| 35 | + "del": delCidCmd, |
| 36 | + "get": getCidCmd, |
| 37 | + "has": hasCidCmd, |
| 38 | + "list": listCidCmd, |
| 39 | + }, |
| 40 | + NoLocal: true, |
| 41 | +} |
| 42 | + |
| 43 | +var addCidCmd = &cmds.Command{ |
| 44 | + Helptext: cmds.HelpText{ |
| 45 | + Tagline: "Add cid to store.", |
| 46 | + }, |
| 47 | + Options: []cmds.Option{ |
| 48 | + cmds.BoolOption(batchOptionName, "b", "batch add cids, cids split by , and all exits will be deleted").WithDefault(false), |
| 49 | + }, |
| 50 | + Arguments: []cmds.Argument{ |
| 51 | + cmds.StringArg("cid", true, false, "cid to add to store"), |
| 52 | + }, |
| 53 | + Run: func(req *cmds.Request, res cmds.ResponseEmitter, env cmds.Environment) error { |
| 54 | + nd, err := cmdenv.GetNode(env) |
| 55 | + if err != nil { |
| 56 | + return err |
| 57 | + } |
| 58 | + |
| 59 | + batch, _ := req.Options[batchOptionName].(bool) |
| 60 | + if batch { |
| 61 | + cids := strings.Split(req.Arguments[0], cidSeparator) |
| 62 | + batch, err := nd.Repo.Datastore().Batch(req.Context) |
| 63 | + if err != nil { |
| 64 | + return cmds.EmitOnce(res, err.Error()) |
| 65 | + } |
| 66 | + |
| 67 | + // check if all cid is valid if not return |
| 68 | + err = validateCIDs(cids) |
| 69 | + if err != nil { |
| 70 | + return cmds.EmitOnce(res, err.Error()) |
| 71 | + } |
| 72 | + |
| 73 | + // delete all exits |
| 74 | + results, err := nd.Repo.Datastore().Query(req.Context, query.Query{ |
| 75 | + Prefix: FilterKeyPrefix, |
| 76 | + }) |
| 77 | + if err != nil { |
| 78 | + return cmds.EmitOnce(res, err.Error()) |
| 79 | + } |
| 80 | + for v := range results.Next() { |
| 81 | + err = batch.Delete(req.Context, datastore.NewKey(NewGatewayFilterKey(string(v.Value)))) |
| 82 | + if err != nil { |
| 83 | + return cmds.EmitOnce(res, err.Error()) |
| 84 | + } |
| 85 | + } |
| 86 | + |
| 87 | + for _, v := range cids { |
| 88 | + if v == "" { |
| 89 | + continue |
| 90 | + } |
| 91 | + err = batch.Put(req.Context, datastore.NewKey(NewGatewayFilterKey(v)), []byte(v)) |
| 92 | + if err != nil { |
| 93 | + return cmds.EmitOnce(res, err.Error()) |
| 94 | + } |
| 95 | + } |
| 96 | + err = batch.Commit(req.Context) |
| 97 | + if err != nil { |
| 98 | + return cmds.EmitOnce(res, err.Error()) |
| 99 | + } |
| 100 | + return cmds.EmitOnce(res, "Add batch ok.") |
| 101 | + } |
| 102 | + |
| 103 | + cid := req.Arguments[0] |
| 104 | + err = validateCIDs([]string{cid}) |
| 105 | + if err != nil { |
| 106 | + return cmds.EmitOnce(res, err.Error()) |
| 107 | + } |
| 108 | + err = nd.Repo.Datastore().Put(req.Context, datastore.NewKey(NewGatewayFilterKey(cid)), |
| 109 | + []byte(req.Arguments[0])) |
| 110 | + if err != nil { |
| 111 | + return cmds.EmitOnce(res, err.Error()) |
| 112 | + } |
| 113 | + return cmds.EmitOnce(res, "Add ok.") |
| 114 | + }, |
| 115 | +} |
| 116 | + |
| 117 | +var getCidCmd = &cmds.Command{ |
| 118 | + Helptext: cmds.HelpText{ |
| 119 | + Tagline: "Get cid from store.", |
| 120 | + }, |
| 121 | + Arguments: []cmds.Argument{ |
| 122 | + cmds.StringArg("cid", true, false, "cid to add to store"), |
| 123 | + }, |
| 124 | + Run: func(req *cmds.Request, res cmds.ResponseEmitter, env cmds.Environment) error { |
| 125 | + nd, err := cmdenv.GetNode(env) |
| 126 | + if err != nil { |
| 127 | + return err |
| 128 | + } |
| 129 | + v, err := nd.Repo.Datastore().Get(req.Context, datastore.NewKey(NewGatewayFilterKey(req.Arguments[0]))) |
| 130 | + if err != nil { |
| 131 | + return cmds.EmitOnce(res, err.Error()) |
| 132 | + } |
| 133 | + return cmds.EmitOnce(res, string(v)) |
| 134 | + }, |
| 135 | +} |
| 136 | + |
| 137 | +var delCidCmd = &cmds.Command{ |
| 138 | + Helptext: cmds.HelpText{ |
| 139 | + Tagline: "Delete cid from store.", |
| 140 | + }, |
| 141 | + Arguments: []cmds.Argument{ |
| 142 | + cmds.StringArg("cid", true, false, "cid to add to store"), |
| 143 | + }, |
| 144 | + Run: func(req *cmds.Request, res cmds.ResponseEmitter, env cmds.Environment) error { |
| 145 | + nd, err := cmdenv.GetNode(env) |
| 146 | + if err != nil { |
| 147 | + return err |
| 148 | + } |
| 149 | + err = nd.Repo.Datastore().Delete(req.Context, datastore.NewKey(NewGatewayFilterKey(req.Arguments[0]))) |
| 150 | + if err != nil { |
| 151 | + return cmds.EmitOnce(res, err.Error()) |
| 152 | + } |
| 153 | + return cmds.EmitOnce(res, "Del ok.") |
| 154 | + }, |
| 155 | +} |
| 156 | + |
| 157 | +var hasCidCmd = &cmds.Command{ |
| 158 | + Helptext: cmds.HelpText{ |
| 159 | + Tagline: "Check cid exits in store", |
| 160 | + }, |
| 161 | + Arguments: []cmds.Argument{ |
| 162 | + cmds.StringArg("cid", true, false, "cid to add to store"), |
| 163 | + }, |
| 164 | + Run: func(req *cmds.Request, res cmds.ResponseEmitter, env cmds.Environment) error { |
| 165 | + nd, err := cmdenv.GetNode(env) |
| 166 | + if err != nil { |
| 167 | + return err |
| 168 | + } |
| 169 | + exits, err := nd.Repo.Datastore().Has(req.Context, datastore.NewKey(NewGatewayFilterKey(req.Arguments[0]))) |
| 170 | + if err != nil { |
| 171 | + return err |
| 172 | + } |
| 173 | + if !exits { |
| 174 | + return cmds.EmitOnce(res, "Cid not exits") |
| 175 | + } |
| 176 | + return cmds.EmitOnce(res, "Cid exits") |
| 177 | + }, |
| 178 | +} |
| 179 | + |
| 180 | +var listCidCmd = &cmds.Command{ |
| 181 | + Helptext: cmds.HelpText{ |
| 182 | + Tagline: "List all cids in store", |
| 183 | + }, |
| 184 | + Options: []cmds.Option{ |
| 185 | + cmds.IntOption(SizeOptionName, "s", "Number of cids to return."), |
| 186 | + }, |
| 187 | + Run: func(req *cmds.Request, res cmds.ResponseEmitter, env cmds.Environment) error { |
| 188 | + nd, err := cmdenv.GetNode(env) |
| 189 | + if err != nil { |
| 190 | + return err |
| 191 | + } |
| 192 | + size, _ := req.Options[SizeOptionName].(int) |
| 193 | + results, err := nd.Repo.Datastore().Query(req.Context, query.Query{ |
| 194 | + Prefix: FilterKeyPrefix, |
| 195 | + Limit: size, |
| 196 | + }) |
| 197 | + if err != nil { |
| 198 | + return err |
| 199 | + } |
| 200 | + var resStr []string |
| 201 | + for v := range results.Next() { |
| 202 | + resStr = append(resStr, string(v.Value)) |
| 203 | + } |
| 204 | + return cmds.EmitOnce(res, resStr) |
| 205 | + }, |
| 206 | + Encoders: cmds.EncoderMap{ |
| 207 | + cmds.Text: cmds.MakeTypedEncoder(func(req *cmds.Request, w io.Writer, cids []string) error { |
| 208 | + for _, v := range cids { |
| 209 | + _, err := w.Write([]byte(v + "\n")) |
| 210 | + if err != nil { |
| 211 | + return err |
| 212 | + } |
| 213 | + } |
| 214 | + return nil |
| 215 | + }), |
| 216 | + }, |
| 217 | + Type: []string{}, |
| 218 | +} |
| 219 | + |
| 220 | +func NewGatewayFilterKey(key string) string { |
| 221 | + return fmt.Sprintf("%s/%s", FilterKeyPrefix, key) |
| 222 | +} |
| 223 | + |
| 224 | +func validateCIDs(cids []string) error { |
| 225 | + for _, c := range cids { |
| 226 | + if c == "" { |
| 227 | + continue |
| 228 | + } |
| 229 | + _, err := cid.Decode(c) |
| 230 | + if err != nil { |
| 231 | + return fmt.Errorf("Invalid CID: %s", c) |
| 232 | + } |
| 233 | + } |
| 234 | + return nil |
| 235 | +} |
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