surrealpatch/cli/import.go
2017-12-20 06:51:11 +00:00

139 lines
4.1 KiB
Go

// Copyright © 2016 Abcum Ltd
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cli
import (
"fmt"
"net/http"
"os"
"io/ioutil"
"github.com/spf13/cobra"
"github.com/abcum/surreal/log"
)
var importCmd = &cobra.Command{
Use: "import [flags] <file>",
Short: "Import data into an existing database",
Example: " surreal import --auth root:root backup.db",
RunE: func(cmd *cobra.Command, args []string) (err error) {
var fle *os.File
var req *http.Request
var res *http.Response
// Ensure that the command has a filepath
// as the output file argument. If no filepath
// has been provided then return an error.
if len(args) != 1 {
log.Fatalln("No filepath provided.")
return
}
// Attempt to open or create the specified file
// in write-only mode, and if there is a problem
// creating the file, then return an error.
if fle, err = os.OpenFile(args[0], os.O_RDONLY, 0644); err != nil {
log.Fatalln("Import failed - please check the filepath and try again.")
return
}
// Ensure that we properly close the file handle
// when we have finished with the file so that
// the file descriptor is released.
defer fle.Close()
// Check to see if the http request type has
// been specified as eith 'http' or 'https'
// as these are the only supported schemes.
if opts.DB.Type != "http" && opts.DB.Type != "https" {
log.Fatalln("Connection failed - please specify 'http' or 'https' for the scheme.")
return
}
// Configure the export connection endpoint url
// and specify the authentication header using
// basic auth for root login.
url := fmt.Sprintf("%s://%s@%s:%s/import", opts.DB.Type, opts.Auth.Auth, opts.DB.Host, opts.DB.Port)
// Create a new http request object that we
// can use to connect to the import endpoint
// using a POST http request type.
if req, err = http.NewRequest("POST", url, fle); err != nil {
log.Fatalln("Connection failed - check the connection details and try again.")
return
}
// Specify that the request is an octet stream
// so that we can stream the file contents to
// the server without reading the whole file.
req.Header.Set("Content-Type", "application/octet-stream")
// Attempt to dial the import endpoint and
// if there is an error then stop execution
// and return the connection error.
if res, err = http.DefaultClient.Do(req); err != nil {
log.Fatalln("Connection failed - check the connection details and try again.")
return
}
// Ensure that we close the body, otherwise
// if the Body is not closed, the Client can
// not use the underlying transport again.
defer res.Body.Close()
// Ensure that we didn't receive a 401 status
// code back from the server, otherwise there
// was a problem with our authentication.
if res.StatusCode == 401 {
log.Fatalln("Authentication failed - check the connection details and try again.")
return
}
// Ensure that we received a http 200 status
// code back from the server, otherwise there
// was a problem with our request.
if res.StatusCode != 200 {
bdy, _ := ioutil.ReadAll(res.Body)
log.Fatalf("%s", bdy)
return
}
return
},
}
func init() {
importCmd.PersistentFlags().StringVarP(&opts.Auth.Auth, "auth", "a", "root:root", "Master authentication details to use when connecting.")
importCmd.PersistentFlags().StringVar(&opts.DB.Type, "scheme", "https", "HTTP connection scheme to use to connect to the database.")
importCmd.PersistentFlags().StringVar(&opts.DB.Host, "host", "surreal.io", "Database server host to connect to.")
importCmd.PersistentFlags().StringVar(&opts.DB.Port, "port", "443", "Database server port to connect to.")
}