314 lines
10 KiB
Go
314 lines
10 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"io"
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"os"
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"path/filepath"
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log "github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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"gopkg.in/yaml.v2"
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"github.com/crowdsecurity/crowdsec/cmd/crowdsec-cli/require"
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"github.com/crowdsecurity/crowdsec/pkg/csconfig"
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"github.com/crowdsecurity/crowdsec/pkg/cwhub"
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)
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type OldAPICfg struct {
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MachineID string `json:"machine_id"`
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Password string `json:"password"`
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}
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func restoreHub(dirPath string) error {
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hub, err := require.Hub(csConfig, require.RemoteHub(csConfig), nil)
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if err != nil {
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return err
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}
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for _, itype := range cwhub.ItemTypes {
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itemDirectory := fmt.Sprintf("%s/%s/", dirPath, itype)
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if _, err = os.Stat(itemDirectory); err != nil {
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log.Infof("no %s in backup", itype)
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continue
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}
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/*restore the upstream items*/
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upstreamListFN := fmt.Sprintf("%s/upstream-%s.json", itemDirectory, itype)
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file, err := os.ReadFile(upstreamListFN)
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if err != nil {
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return fmt.Errorf("error while opening %s : %s", upstreamListFN, err)
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}
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var upstreamList []string
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err = json.Unmarshal(file, &upstreamList)
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if err != nil {
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return fmt.Errorf("error unmarshaling %s : %s", upstreamListFN, err)
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}
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for _, toinstall := range upstreamList {
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item := hub.GetItem(itype, toinstall)
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if item == nil {
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log.Errorf("Item %s/%s not found in hub", itype, toinstall)
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continue
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}
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err := item.Install(false, false)
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if err != nil {
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log.Errorf("Error while installing %s : %s", toinstall, err)
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}
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}
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/*restore the local and tainted items*/
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files, err := os.ReadDir(itemDirectory)
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if err != nil {
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return fmt.Errorf("failed enumerating files of %s : %s", itemDirectory, err)
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}
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for _, file := range files {
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//this was the upstream data
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if file.Name() == fmt.Sprintf("upstream-%s.json", itype) {
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continue
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}
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if itype == cwhub.PARSERS || itype == cwhub.POSTOVERFLOWS {
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//we expect a stage here
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if !file.IsDir() {
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continue
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}
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stage := file.Name()
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stagedir := fmt.Sprintf("%s/%s/%s/", csConfig.ConfigPaths.ConfigDir, itype, stage)
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log.Debugf("Found stage %s in %s, target directory : %s", stage, itype, stagedir)
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if err = os.MkdirAll(stagedir, os.ModePerm); err != nil {
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return fmt.Errorf("error while creating stage directory %s : %s", stagedir, err)
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}
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// find items
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ifiles, err := os.ReadDir(itemDirectory + "/" + stage + "/")
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if err != nil {
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return fmt.Errorf("failed enumerating files of %s : %s", itemDirectory+"/"+stage, err)
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}
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//finally copy item
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for _, tfile := range ifiles {
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log.Infof("Going to restore local/tainted [%s]", tfile.Name())
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sourceFile := fmt.Sprintf("%s/%s/%s", itemDirectory, stage, tfile.Name())
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destinationFile := fmt.Sprintf("%s%s", stagedir, tfile.Name())
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if err = CopyFile(sourceFile, destinationFile); err != nil {
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return fmt.Errorf("failed copy %s %s to %s : %s", itype, sourceFile, destinationFile, err)
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}
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log.Infof("restored %s to %s", sourceFile, destinationFile)
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}
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} else {
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log.Infof("Going to restore local/tainted [%s]", file.Name())
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sourceFile := fmt.Sprintf("%s/%s", itemDirectory, file.Name())
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destinationFile := fmt.Sprintf("%s/%s/%s", csConfig.ConfigPaths.ConfigDir, itype, file.Name())
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if err = CopyFile(sourceFile, destinationFile); err != nil {
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return fmt.Errorf("failed copy %s %s to %s : %s", itype, sourceFile, destinationFile, err)
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}
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log.Infof("restored %s to %s", sourceFile, destinationFile)
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}
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}
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}
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return nil
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}
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/*
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Restore crowdsec configurations to directory <dirPath>:
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- Main config (config.yaml)
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- Profiles config (profiles.yaml)
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- Simulation config (simulation.yaml)
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- Backup of API credentials (local API and online API)
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- List of scenarios, parsers, postoverflows and collections that are up-to-date
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- Tainted/local/out-of-date scenarios, parsers, postoverflows and collections
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- Acquisition files (acquis.yaml, acquis.d/*.yaml)
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*/
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func restoreConfigFromDirectory(dirPath string, oldBackup bool) error {
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var err error
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if !oldBackup {
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backupMain := fmt.Sprintf("%s/config.yaml", dirPath)
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if _, err = os.Stat(backupMain); err == nil {
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if csConfig.ConfigPaths != nil && csConfig.ConfigPaths.ConfigDir != "" {
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if err = CopyFile(backupMain, fmt.Sprintf("%s/config.yaml", csConfig.ConfigPaths.ConfigDir)); err != nil {
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return fmt.Errorf("failed copy %s to %s : %s", backupMain, csConfig.ConfigPaths.ConfigDir, err)
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}
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}
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}
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// Now we have config.yaml, we should regenerate config struct to have rights paths etc
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ConfigFilePath = fmt.Sprintf("%s/config.yaml", csConfig.ConfigPaths.ConfigDir)
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initConfig()
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backupCAPICreds := fmt.Sprintf("%s/online_api_credentials.yaml", dirPath)
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if _, err = os.Stat(backupCAPICreds); err == nil {
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if err = CopyFile(backupCAPICreds, csConfig.API.Server.OnlineClient.CredentialsFilePath); err != nil {
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return fmt.Errorf("failed copy %s to %s : %s", backupCAPICreds, csConfig.API.Server.OnlineClient.CredentialsFilePath, err)
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}
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}
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backupLAPICreds := fmt.Sprintf("%s/local_api_credentials.yaml", dirPath)
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if _, err = os.Stat(backupLAPICreds); err == nil {
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if err = CopyFile(backupLAPICreds, csConfig.API.Client.CredentialsFilePath); err != nil {
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return fmt.Errorf("failed copy %s to %s : %s", backupLAPICreds, csConfig.API.Client.CredentialsFilePath, err)
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}
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}
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backupProfiles := fmt.Sprintf("%s/profiles.yaml", dirPath)
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if _, err = os.Stat(backupProfiles); err == nil {
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if err = CopyFile(backupProfiles, csConfig.API.Server.ProfilesPath); err != nil {
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return fmt.Errorf("failed copy %s to %s : %s", backupProfiles, csConfig.API.Server.ProfilesPath, err)
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}
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}
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} else {
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var oldAPICfg OldAPICfg
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backupOldAPICfg := fmt.Sprintf("%s/api_creds.json", dirPath)
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jsonFile, err := os.Open(backupOldAPICfg)
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if err != nil {
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log.Warningf("failed to open %s : %s", backupOldAPICfg, err)
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} else {
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byteValue, _ := io.ReadAll(jsonFile)
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err = json.Unmarshal(byteValue, &oldAPICfg)
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if err != nil {
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return fmt.Errorf("failed to load json file %s : %s", backupOldAPICfg, err)
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}
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apiCfg := csconfig.ApiCredentialsCfg{
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Login: oldAPICfg.MachineID,
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Password: oldAPICfg.Password,
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URL: CAPIBaseURL,
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}
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apiConfigDump, err := yaml.Marshal(apiCfg)
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if err != nil {
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return fmt.Errorf("unable to dump api credentials: %s", err)
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}
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apiConfigDumpFile := fmt.Sprintf("%s/online_api_credentials.yaml", csConfig.ConfigPaths.ConfigDir)
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if csConfig.API.Server.OnlineClient != nil && csConfig.API.Server.OnlineClient.CredentialsFilePath != "" {
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apiConfigDumpFile = csConfig.API.Server.OnlineClient.CredentialsFilePath
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}
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err = os.WriteFile(apiConfigDumpFile, apiConfigDump, 0o600)
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if err != nil {
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return fmt.Errorf("write api credentials in '%s' failed: %s", apiConfigDumpFile, err)
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}
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log.Infof("Saved API credentials to %s", apiConfigDumpFile)
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}
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}
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backupSimulation := fmt.Sprintf("%s/simulation.yaml", dirPath)
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if _, err = os.Stat(backupSimulation); err == nil {
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if err = CopyFile(backupSimulation, csConfig.ConfigPaths.SimulationFilePath); err != nil {
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return fmt.Errorf("failed copy %s to %s : %s", backupSimulation, csConfig.ConfigPaths.SimulationFilePath, err)
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}
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}
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/*if there is a acquisition dir, restore its content*/
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if csConfig.Crowdsec.AcquisitionDirPath != "" {
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if err = os.MkdirAll(csConfig.Crowdsec.AcquisitionDirPath, 0o700); err != nil {
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return fmt.Errorf("error while creating %s : %s", csConfig.Crowdsec.AcquisitionDirPath, err)
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}
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}
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// if there was a single one
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backupAcquisition := fmt.Sprintf("%s/acquis.yaml", dirPath)
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if _, err = os.Stat(backupAcquisition); err == nil {
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log.Debugf("restoring backup'ed %s", backupAcquisition)
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if err = CopyFile(backupAcquisition, csConfig.Crowdsec.AcquisitionFilePath); err != nil {
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return fmt.Errorf("failed copy %s to %s : %s", backupAcquisition, csConfig.Crowdsec.AcquisitionFilePath, err)
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}
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}
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// if there is files in the acquis backup dir, restore them
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acquisBackupDir := filepath.Join(dirPath, "acquis", "*.yaml")
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if acquisFiles, err := filepath.Glob(acquisBackupDir); err == nil {
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for _, acquisFile := range acquisFiles {
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targetFname, err := filepath.Abs(csConfig.Crowdsec.AcquisitionDirPath + "/" + filepath.Base(acquisFile))
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if err != nil {
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return fmt.Errorf("while saving %s to %s: %w", acquisFile, targetFname, err)
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}
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log.Debugf("restoring %s to %s", acquisFile, targetFname)
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if err = CopyFile(acquisFile, targetFname); err != nil {
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return fmt.Errorf("failed copy %s to %s : %s", acquisFile, targetFname, err)
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}
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}
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}
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if csConfig.Crowdsec != nil && len(csConfig.Crowdsec.AcquisitionFiles) > 0 {
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for _, acquisFile := range csConfig.Crowdsec.AcquisitionFiles {
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log.Infof("backup filepath from dir -> %s", acquisFile)
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// if it was the default one, it has already been backed up
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if csConfig.Crowdsec.AcquisitionFilePath == acquisFile {
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log.Infof("skip this one")
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continue
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}
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targetFname, err := filepath.Abs(filepath.Join(acquisBackupDir, filepath.Base(acquisFile)))
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if err != nil {
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return fmt.Errorf("while saving %s to %s: %w", acquisFile, acquisBackupDir, err)
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}
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if err = CopyFile(acquisFile, targetFname); err != nil {
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return fmt.Errorf("failed copy %s to %s : %s", acquisFile, targetFname, err)
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}
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log.Infof("Saved acquis %s to %s", acquisFile, targetFname)
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}
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}
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if err = restoreHub(dirPath); err != nil {
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return fmt.Errorf("failed to restore hub config : %s", err)
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}
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return nil
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}
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func runConfigRestore(cmd *cobra.Command, args []string) error {
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flags := cmd.Flags()
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oldBackup, err := flags.GetBool("old-backup")
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if err != nil {
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return err
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}
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if err := restoreConfigFromDirectory(args[0], oldBackup); err != nil {
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return fmt.Errorf("failed to restore config from %s: %w", args[0], err)
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}
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return nil
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}
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func NewConfigRestoreCmd() *cobra.Command {
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cmdConfigRestore := &cobra.Command{
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Use: `restore "directory"`,
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Short: `Restore config in backup "directory"`,
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Long: `Restore the crowdsec configuration from specified backup "directory" including:
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- Main config (config.yaml)
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- Simulation config (simulation.yaml)
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- Profiles config (profiles.yaml)
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- List of scenarios, parsers, postoverflows and collections that are up-to-date
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- Tainted/local/out-of-date scenarios, parsers, postoverflows and collections
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- Backup of API credentials (local API and online API)`,
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Args: cobra.ExactArgs(1),
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DisableAutoGenTag: true,
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RunE: runConfigRestore,
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}
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flags := cmdConfigRestore.Flags()
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flags.BoolP("old-backup", "", false, "To use when you are upgrading crowdsec v0.X to v1.X and you need to restore backup from v0.X")
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return cmdConfigRestore
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}
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