Scott Baker | 2c0ebda | 2019-05-06 16:55:47 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Portions copyright 2019-present Open Networking Foundation |
| 3 | * Original copyright 2019-present Ciena Corporation |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | */ |
| 17 | package commands |
| 18 | |
| 19 | import ( |
| 20 | "context" |
| 21 | "errors" |
| 22 | "fmt" |
| 23 | "github.com/fullstorydev/grpcurl" |
| 24 | "github.com/golang/protobuf/proto" |
| 25 | flags "github.com/jessevdk/go-flags" |
| 26 | "github.com/jhump/protoreflect/dynamic" |
| 27 | "github.com/opencord/cordctl/format" |
| 28 | "io" |
| 29 | "os" |
| 30 | "strings" |
| 31 | ) |
| 32 | |
| 33 | const ( |
| 34 | DEFAULT_TRANSFER_FORMAT = "table{{ .Status }}\t{{ .Checksum }}\t{{ .Chunks }}\t{{ .Bytes }}" |
| 35 | ) |
| 36 | |
| 37 | type TransferOutput struct { |
| 38 | Status string `json:"status"` |
| 39 | Checksum string `json:"checksum"` |
| 40 | Chunks int `json:"chunks"` |
| 41 | Bytes int `json:"bytes"` |
| 42 | } |
| 43 | |
| 44 | type TransferUpload struct { |
| 45 | OutputOptions |
| 46 | ChunkSize int `short:"h" long:"chunksize" default:"65536" description:"Host and port"` |
| 47 | Args struct { |
| 48 | LocalFileName string |
| 49 | URI string |
| 50 | } `positional-args:"yes" required:"yes"` |
| 51 | } |
| 52 | |
| 53 | type TransferDownload struct { |
| 54 | OutputOptions |
| 55 | Args struct { |
| 56 | URI string |
| 57 | LocalFileName string |
| 58 | } `positional-args:"yes" required:"yes"` |
| 59 | } |
| 60 | |
| 61 | type TransferOpts struct { |
| 62 | Upload TransferUpload `command:"upload"` |
| 63 | Download TransferDownload `command:"download"` |
| 64 | } |
| 65 | |
| 66 | var transferOpts = TransferOpts{} |
| 67 | |
| 68 | func RegisterTransferCommands(parser *flags.Parser) { |
| 69 | parser.AddCommand("transfer", "file transfer commands", "Commands to transfer files to and from XOS", &transferOpts) |
| 70 | } |
| 71 | |
| 72 | /* Handlers for streaming upload and download */ |
| 73 | |
| 74 | type DownloadHandler struct { |
| 75 | RpcEventHandler |
| 76 | f *os.File |
| 77 | chunks int |
| 78 | bytes int |
| 79 | status string |
| 80 | } |
| 81 | |
| 82 | type UploadHandler struct { |
| 83 | RpcEventHandler |
| 84 | chunksize int |
| 85 | f *os.File |
| 86 | uri string |
| 87 | } |
| 88 | |
| 89 | func (h *DownloadHandler) OnReceiveResponse(m proto.Message) { |
| 90 | d, err := dynamic.AsDynamicMessage(m) |
| 91 | if err != nil { |
| 92 | h.status = "ERROR" |
| 93 | // TODO(smbaker): How to raise an exception? |
| 94 | return |
| 95 | } |
| 96 | chunk := d.GetFieldByName("chunk").(string) |
| 97 | h.f.Write([]byte(chunk)) |
| 98 | h.chunks += 1 |
| 99 | h.bytes += len(chunk) |
| 100 | } |
| 101 | |
| 102 | func (h *UploadHandler) GetParams(msg proto.Message) error { |
| 103 | dmsg, err := dynamic.AsDynamicMessage(msg) |
| 104 | if err != nil { |
| 105 | return err |
| 106 | } |
| 107 | |
| 108 | fmt.Printf("streamer, MessageName: %s\n", dmsg.XXX_MessageName()) |
| 109 | |
| 110 | block := make([]byte, h.chunksize) |
| 111 | bytes_read, err := h.f.Read(block) |
| 112 | |
| 113 | if err == io.EOF { |
| 114 | h.f.Close() |
| 115 | fmt.Print("EOF\n") |
| 116 | return err |
| 117 | } |
| 118 | |
| 119 | if err != nil { |
| 120 | fmt.Print("ERROR!\n") |
| 121 | return err |
| 122 | } |
| 123 | |
| 124 | dmsg.TrySetFieldByName("uri", h.uri) |
| 125 | dmsg.TrySetFieldByName("chunk", string(block[:bytes_read])) |
| 126 | |
| 127 | return nil |
| 128 | } |
| 129 | |
| 130 | /* Command processors */ |
| 131 | |
| 132 | func (options *TransferUpload) Execute(args []string) error { |
| 133 | |
| 134 | conn, err := NewConnection() |
| 135 | if err != nil { |
| 136 | return err |
| 137 | } |
| 138 | defer conn.Close() |
| 139 | |
| 140 | local_name := options.Args.LocalFileName |
| 141 | uri := options.Args.URI |
| 142 | |
| 143 | descriptor, method, err := GetReflectionMethod(conn, "xos.filetransfer/Upload") |
| 144 | if err != nil { |
| 145 | return err |
| 146 | } |
| 147 | |
| 148 | ctx, cancel := context.WithTimeout(context.Background(), GlobalConfig.Grpc.Timeout) |
| 149 | defer cancel() |
| 150 | |
| 151 | headers := GenerateHeaders() |
| 152 | |
| 153 | f, err := os.Open(local_name) |
| 154 | if err != nil { |
| 155 | return err |
| 156 | } |
| 157 | |
| 158 | h := &UploadHandler{uri: uri, f: f, chunksize: options.ChunkSize} |
| 159 | |
| 160 | err = grpcurl.InvokeRPC(ctx, descriptor, conn, method, headers, h, h.GetParams) |
| 161 | if err != nil { |
| 162 | return err |
| 163 | } |
| 164 | d, err := dynamic.AsDynamicMessage(h.Response) |
| 165 | if err != nil { |
| 166 | return err |
| 167 | } |
| 168 | |
| 169 | outputFormat := CharReplacer.Replace(options.Format) |
| 170 | if outputFormat == "" { |
| 171 | outputFormat = DEFAULT_TRANSFER_FORMAT |
| 172 | } |
| 173 | if options.Quiet { |
| 174 | outputFormat = "{{.Status}}" |
| 175 | } |
| 176 | |
| 177 | data := make([]TransferOutput, 1) |
| 178 | data[0].Checksum = d.GetFieldByName("checksum").(string) |
| 179 | data[0].Chunks = int(d.GetFieldByName("chunks_received").(int32)) |
| 180 | data[0].Bytes = int(d.GetFieldByName("bytes_received").(int32)) |
| 181 | data[0].Status = GetEnumValue(d, "status") |
| 182 | |
| 183 | result := CommandResult{ |
| 184 | Format: format.Format(outputFormat), |
| 185 | OutputAs: toOutputType(options.OutputAs), |
| 186 | Data: data, |
| 187 | } |
| 188 | |
| 189 | GenerateOutput(&result) |
| 190 | |
| 191 | return nil |
| 192 | } |
| 193 | |
| 194 | func IsFileUri(s string) bool { |
| 195 | return strings.HasPrefix(s, "file://") |
| 196 | } |
| 197 | |
| 198 | func (options *TransferDownload) Execute(args []string) error { |
| 199 | |
| 200 | conn, err := NewConnection() |
| 201 | if err != nil { |
| 202 | return err |
| 203 | } |
| 204 | defer conn.Close() |
| 205 | |
| 206 | local_name := options.Args.LocalFileName |
| 207 | uri := options.Args.URI |
| 208 | |
| 209 | if IsFileUri(local_name) { |
| 210 | return errors.New("local_name argument should not be a uri") |
| 211 | } |
| 212 | |
| 213 | if !IsFileUri(uri) { |
| 214 | return errors.New("uri argument should be a file:// uri") |
| 215 | } |
| 216 | |
| 217 | descriptor, method, err := GetReflectionMethod(conn, "xos.filetransfer/Download") |
| 218 | if err != nil { |
| 219 | return err |
| 220 | } |
| 221 | |
| 222 | ctx, cancel := context.WithTimeout(context.Background(), GlobalConfig.Grpc.Timeout) |
| 223 | defer cancel() |
| 224 | |
| 225 | headers := GenerateHeaders() |
| 226 | |
| 227 | f, err := os.Create(local_name) |
| 228 | if err != nil { |
| 229 | return err |
| 230 | } |
| 231 | |
| 232 | dm := make(map[string]interface{}) |
| 233 | dm["uri"] = uri |
| 234 | |
| 235 | h := &DownloadHandler{ |
| 236 | RpcEventHandler: RpcEventHandler{ |
| 237 | Fields: map[string]map[string]interface{}{"xos.FileRequest": dm}, |
| 238 | }, |
| 239 | f: f, |
| 240 | chunks: 0, |
| 241 | bytes: 0, |
| 242 | status: "SUCCESS"} |
| 243 | |
| 244 | err = grpcurl.InvokeRPC(ctx, descriptor, conn, method, headers, h, h.GetParams) |
| 245 | if err != nil { |
| 246 | return err |
| 247 | } |
| 248 | |
| 249 | outputFormat := CharReplacer.Replace(options.Format) |
| 250 | if outputFormat == "" { |
| 251 | outputFormat = DEFAULT_TRANSFER_FORMAT |
| 252 | } |
| 253 | if options.Quiet { |
| 254 | outputFormat = "{{.Status}}" |
| 255 | } |
| 256 | |
| 257 | data := make([]TransferOutput, 1) |
| 258 | data[0].Chunks = h.chunks |
| 259 | data[0].Bytes = h.bytes |
| 260 | data[0].Status = h.status |
| 261 | |
| 262 | result := CommandResult{ |
| 263 | Format: format.Format(outputFormat), |
| 264 | OutputAs: toOutputType(options.OutputAs), |
| 265 | Data: data, |
| 266 | } |
| 267 | |
| 268 | GenerateOutput(&result) |
| 269 | |
| 270 | return nil |
| 271 | } |