File: import.go

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/*
 * Copyright (c) 2013-2017, Jeremy Bingham (<jeremy@goiardi.gl>)
 *
 * 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 main

import (
	"bytes"
	"encoding/base64"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"os"
	"time"

	"github.com/ctdk/goiardi/client"
	"github.com/ctdk/goiardi/cookbook"
	"github.com/ctdk/goiardi/databag"
	"github.com/ctdk/goiardi/environment"
	"github.com/ctdk/goiardi/filestore"
	"github.com/ctdk/goiardi/loginfo"
	"github.com/ctdk/goiardi/node"
	"github.com/ctdk/goiardi/report"
	"github.com/ctdk/goiardi/role"
	"github.com/ctdk/goiardi/sandbox"
	"github.com/ctdk/goiardi/shovey"
	"github.com/ctdk/goiardi/user"
	"github.com/tideland/golib/logger"
)

func importAll(fileName string) error {
	fp, err := os.Open(fileName)
	if err != nil {
		return err
	}
	exportedData := &ExportData{}
	dec := json.NewDecoder(fp)
	dec.UseNumber()
	if err := dec.Decode(&exportedData); err != nil {
		return err
	}

	// What versions of the exported data are supported?
	// At the moment it's only 1.0.

	if exportedData.MajorVersion == 1 && (exportedData.MinorVersion == 0 || exportedData.MinorVersion == 1) {
		logger.Infof("Importing data, version %d.%d created on %s", exportedData.MajorVersion, exportedData.MinorVersion, exportedData.CreatedTime)

		// load clients
		logger.Infof("Loading clients")
		for _, v := range exportedData.Data["client"] {
			c, err := client.NewFromJSON(v.(map[string]interface{}))
			if err != nil {
				return err
			}
			pkerr := c.SetPublicKey(v.(map[string]interface{})["public_key"])
			if pkerr != nil {
				return pkerr
			}
			gerr := c.Save()
			if gerr != nil {
				return gerr
			}
		}

		// load users
		logger.Infof("Loading users")
		for _, v := range exportedData.Data["user"] {
			pwhash, _ := v.(map[string]interface{})["password"].(string)
			v.(map[string]interface{})["password"] = ""
			u, err := user.NewFromJSON(v.(map[string]interface{}))
			if err != nil {
				return err
			}
			u.SetPasswdHash(pwhash)
			pkerr := u.SetPublicKey(v.(map[string]interface{})["public_key"])
			if pkerr != nil {
				return pkerr
			}
			gerr := u.Save()
			if gerr != nil {
				return gerr
			}
		}

		// load filestore
		logger.Infof("Loading filestore")
		for _, v := range exportedData.Data["filestore"] {
			fileData, err := base64.StdEncoding.DecodeString(v.(map[string]interface{})["Data"].(string))
			if err != nil {
				return err
			}
			fdBuf := bytes.NewBuffer(fileData)
			fdRc := ioutil.NopCloser(fdBuf)
			fs, err := filestore.New(v.(map[string]interface{})["Chksum"].(string), fdRc, int64(fdBuf.Len()))
			if err != nil {
				return err
			}
			if err = fs.Save(); err != nil {
				return err
			}
		}

		// load cookbooks
		logger.Infof("Loading cookbooks")
		for _, v := range exportedData.Data["cookbook"] {
			cb, err := cookbook.New(v.(map[string]interface{})["Name"].(string))
			if err != nil {
				return err
			}
			gerr := cb.Save()
			if gerr != nil {
				return gerr
			}
			for ver, cbvData := range v.(map[string]interface{})["Versions"].(map[string]interface{}) {
				cbvData, cerr := checkAttrs(cbvData.(map[string]interface{}))
				if cerr != nil {
					return cerr
				}
				_, cbverr := cb.NewVersion(ver, cbvData)
				if cbverr != nil {
					return cbverr
				}
			}
		}

		// load data bags
		logger.Infof("Loading data bags")
		for _, v := range exportedData.Data["data_bag"] {
			dbag, err := databag.New(v.(map[string]interface{})["Name"].(string))
			if err != nil {
				return err
			}
			gerr := dbag.Save()
			if gerr != nil {
				return gerr
			}
			for _, dbagData := range v.(map[string]interface{})["DataBagItems"].(map[string]interface{}) {
				_, dbierr := dbag.NewDBItem(dbagData.(map[string]interface{})["raw_data"].(map[string]interface{}))
				if dbierr != nil {
					return dbierr
				}
			}
			gerr = dbag.Save()
			if gerr != nil {
				return gerr
			}
		}
		// load environments
		logger.Infof("Loading environments")
		for _, v := range exportedData.Data["environment"] {
			envData, cerr := checkAttrs(v.(map[string]interface{}))
			if cerr != nil {
				return nil
			}
			if envData["name"].(string) != "_default" {
				e, err := environment.NewFromJSON(envData)
				if err != nil {
					return err
				}
				gerr := e.Save()
				if gerr != nil {
					return gerr
				}
			}
		}

		// load nodes
		logger.Infof("Loading nodes")
		for _, v := range exportedData.Data["node"] {
			nodeData, cerr := checkAttrs(v.(map[string]interface{}))
			if cerr != nil {
				return nil
			}
			n, err := node.NewFromJSON(nodeData)
			if err != nil {
				return err
			}
			gerr := n.Save()
			if gerr != nil {
				return gerr
			}
		}

		// load roles
		logger.Infof("Loading roles")
		for _, v := range exportedData.Data["role"] {
			roleData, cerr := checkAttrs(v.(map[string]interface{}))
			if cerr != nil {
				return nil
			}
			r, err := role.NewFromJSON(roleData)
			if err != nil {
				return err
			}
			gerr := r.Save()
			if gerr != nil {
				return gerr
			}
		}

		// load sandboxes
		logger.Infof("Loading sandboxes")
		for _, v := range exportedData.Data["sandbox"] {
			sbid, _ := v.(map[string]interface{})["Id"].(string)
			sbts, _ := v.(map[string]interface{})["CreationTime"].(string)
			sbcomplete, _ := v.(map[string]interface{})["Completed"].(bool)
			sbck, _ := v.(map[string]interface{})["Checksums"].([]interface{})
			sbTime, err := time.Parse(time.RFC3339, sbts)
			if err != nil {
				return err
			}
			sbChecksums := make([]string, len(sbck))
			for i, c := range sbck {
				sbChecksums[i] = c.(string)
			}
			sbox := &sandbox.Sandbox{ID: sbid, CreationTime: sbTime, Completed: sbcomplete, Checksums: sbChecksums}
			if err = sbox.Save(); err != nil {
				return err
			}
		}

		// load loginfos
		logger.Infof("Loading loginfo")
		for _, v := range exportedData.Data["loginfo"] {
			if err := loginfo.Import(v.(map[string]interface{})); err != nil {
				return err
			}
		}

		// load reports
		logger.Infof("Loading reports")
		for _, o := range exportedData.Data["report"] {
			// handle data exported from a bugged report export
			var nodeName string
			v := o.(map[string]interface{})
			if n, ok := v["node_name"]; ok {
				nodeName = n.(string)
			} else if n, ok := v["nodeName"]; ok {
				nodeName = n.(string)
			}
			v["action"] = "start"
			if st, ok := v["start_time"].(string); ok {
				t, err := time.Parse(time.RFC3339, st)
				if err != nil {
					return err
				}
				v["start_time"] = t.Format(report.ReportTimeFormat)
			}
			if et, ok := v["end_time"].(string); ok {
				t, err := time.Parse(time.RFC3339, et)
				if err != nil {
					return err
				}
				v["end_time"] = t.Format(report.ReportTimeFormat)
			}
			r, err := report.NewFromJSON(nodeName, v)
			if err != nil {
				return err
			}
			gerr := r.Save()
			if gerr != nil {
				return gerr
			}
			v["action"] = "end"
			if err := r.UpdateFromJSON(v); err != nil {
				return err
			}
			gerr = r.Save()
			if gerr != nil {
				return gerr
			}
		}

		if exportedData.MinorVersion == 1 {
			// import shovey jobs, run, and streams, and node
			// statuses
			logger.Infof("Loading node statuses...")
			for _, v := range exportedData.Data["node_status"] {
				ns := v.(map[string]interface{})
				err := node.ImportStatus(ns)
				if err != nil {
					return err
				}
			}
			logger.Infof("Loading shoveys...")
			for _, v := range exportedData.Data["shovey"] {
				s := v.(map[string]interface{})
				err := shovey.ImportShovey(s)
				if err != nil {
					return err
				}
			}
			logger.Infof("Loading shovey runs...")
			for _, v := range exportedData.Data["shovey_run"] {
				s := v.(map[string]interface{})
				err := shovey.ImportShoveyRun(s)
				if err != nil {
					return err
				}

			}
			logger.Infof("Loading shovey run streams...")
			for _, v := range exportedData.Data["shovey_run_stream"] {
				s := v.(map[string]interface{})
				err := shovey.ImportShoveyRunStream(s)
				if err != nil {
					return err
				}
			}
		}

	} else {
		err := fmt.Errorf("goiardi export data version %d.%d is not supported by this version of goiardi", exportedData.MajorVersion, exportedData.MinorVersion)
		return err
	}
	return nil
}