// ValidateSettings returns an error if any settings specified on the command line
// were invalid, or nil if they are valid.
func (exp *MongoExport) ValidateSettings() error {
// Namespace must have a valid database if none is specified,
// use 'test'
if exp.ToolOptions.Namespace.DB == "" {
exp.ToolOptions.Namespace.DB = "test"
}
err := util.ValidateDBName(exp.ToolOptions.Namespace.DB)
if err != nil {
return err
}
if exp.ToolOptions.Namespace.Collection == "" {
return fmt.Errorf("must specify a collection")
}
if err = util.ValidateCollectionGrammar(exp.ToolOptions.Namespace.Collection); err != nil {
return err
}
exp.OutputOpts.Type = strings.ToLower(exp.OutputOpts.Type)
if exp.OutputOpts.CSVOutputType {
log.Logv(log.Always, "csv flag is deprecated; please use --type=csv instead")
exp.OutputOpts.Type = CSV
}
if exp.OutputOpts.Type == "" {
// special error for an empty type value
return fmt.Errorf("--type cannot be empty")
}
if exp.OutputOpts.Type != CSV && exp.OutputOpts.Type != JSON {
return fmt.Errorf("invalid output type '%v', choose 'json' or 'csv'", exp.OutputOpts.Type)
}
if exp.InputOpts.Query != "" && exp.InputOpts.ForceTableScan {
return fmt.Errorf("cannot use --forceTableScan when specifying --query")
}
if exp.InputOpts.Query != "" && exp.InputOpts.QueryFile != "" {
return fmt.Errorf("either --query or --queryFile can be specified as a query option")
}
if exp.InputOpts != nil && exp.InputOpts.HasQuery() {
content, err := exp.InputOpts.GetQuery()
if err != nil {
return err
}
_, err2 := getObjectFromByteArg(content)
if err2 != nil {
return err2
}
}
if exp.InputOpts != nil && exp.InputOpts.Sort != "" {
_, err := getSortFromArg(exp.InputOpts.Sort)
if err != nil {
return err
}
}
return nil
}
// ParseAndValidateOptions returns a non-nil error if user-supplied options are invalid.
func (restore *MongoRestore) ParseAndValidateOptions() error {
// Can't use option pkg defaults for --objcheck because it's two separate flags,
// and we need to be able to see if they're both being used. We default to
// true here and then see if noobjcheck is enabled.
log.Logv(log.DebugHigh, "checking options")
if restore.InputOptions.Objcheck {
restore.objCheck = true
log.Logv(log.DebugHigh, "\tdumping with object check enabled")
} else {
log.Logv(log.DebugHigh, "\tdumping with object check disabled")
}
if restore.NSOptions.DB == "" && restore.NSOptions.Collection != "" {
return fmt.Errorf("cannot restore a collection without a specified database")
}
if restore.NSOptions.DB != "" {
if err := util.ValidateDBName(restore.NSOptions.DB); err != nil {
return fmt.Errorf("invalid db name: %v", err)
}
}
if restore.NSOptions.Collection != "" {
if err := util.ValidateCollectionGrammar(restore.NSOptions.Collection); err != nil {
return fmt.Errorf("invalid collection name: %v", err)
}
}
if restore.InputOptions.RestoreDBUsersAndRoles && restore.NSOptions.DB == "" {
return fmt.Errorf("cannot use --restoreDbUsersAndRoles without a specified database")
}
if restore.InputOptions.RestoreDBUsersAndRoles && restore.NSOptions.DB == "admin" {
return fmt.Errorf("cannot use --restoreDbUsersAndRoles with the admin database")
}
var err error
restore.isMongos, err = restore.SessionProvider.IsMongos()
if err != nil {
return err
}
if restore.isMongos {
log.Logv(log.DebugLow, "restoring to a sharded system")
}
if restore.InputOptions.OplogLimit != "" {
if !restore.InputOptions.OplogReplay {
return fmt.Errorf("cannot use --oplogLimit without --oplogReplay enabled")
}
restore.oplogLimit, err = ParseTimestampFlag(restore.InputOptions.OplogLimit)
if err != nil {
return fmt.Errorf("error parsing timestamp argument to --oplogLimit: %v", err)
}
}
if restore.InputOptions.OplogFile != "" {
if !restore.InputOptions.OplogReplay {
return fmt.Errorf("cannot use --oplogFile without --oplogReplay enabled")
}
if restore.InputOptions.Archive != "" {
return fmt.Errorf("cannot use --oplogFile with --archive specified")
}
}
// check if we are using a replica set and fall back to w=1 if we aren't (for <= 2.4)
nodeType, err := restore.SessionProvider.GetNodeType()
if err != nil {
return fmt.Errorf("error determining type of connected node: %v", err)
}
log.Logvf(log.DebugLow, "connected to node type: %v", nodeType)
restore.safety, err = db.BuildWriteConcern(restore.OutputOptions.WriteConcern, nodeType)
if err != nil {
return fmt.Errorf("error parsing write concern: %v", err)
}
// deprecations with --nsInclude --nsExclude
if restore.NSOptions.DB != "" || restore.NSOptions.Collection != "" {
// these are only okay if restoring from a bson file
_, fileType := restore.getInfoFromFilename(restore.TargetDirectory)
if fileType != BSONFileType {
log.Logvf(log.Always, "the --db and --collection args should only be used when "+
"restoring from a BSON file. Other uses are deprecated and will not exist "+
"in the future; use --nsInclude instead")
}
}
if len(restore.NSOptions.ExcludedCollections) > 0 ||
len(restore.NSOptions.ExcludedCollectionPrefixes) > 0 {
log.Logvf(log.Always, "the --excludeCollections and --excludeCollectionPrefixes options "+
"are deprecated and will not exist in the future; use --nsExclude instead")
}
if restore.InputOptions.OplogReplay {
if len(restore.NSOptions.NSInclude) > 0 || restore.NSOptions.DB != "" {
return fmt.Errorf("cannot use --oplogReplay with includes specified")
}
if len(restore.NSOptions.NSExclude) > 0 || len(restore.NSOptions.ExcludedCollections) > 0 ||
len(restore.NSOptions.ExcludedCollectionPrefixes) > 0 {
return fmt.Errorf("cannot use --oplogReplay with excludes specified")
}
if len(restore.NSOptions.NSFrom) > 0 {
return fmt.Errorf("cannot use --oplogReplay with namespace renames specified")
}
}
includes := restore.NSOptions.NSInclude
if restore.NSOptions.DB != "" && restore.NSOptions.Collection != "" {
includes = append(includes, ns.Escape(restore.NSOptions.DB)+"."+
restore.NSOptions.Collection)
} else if restore.NSOptions.DB != "" {
includes = append(includes, ns.Escape(restore.NSOptions.DB)+".*")
}
if len(includes) == 0 {
includes = []string{"*"}
}
restore.includer, err = ns.NewMatcher(includes)
if err != nil {
return fmt.Errorf("invalid includes: %v", err)
}
if len(restore.NSOptions.ExcludedCollections) > 0 && restore.NSOptions.Collection != "" {
return fmt.Errorf("--collection is not allowed when --excludeCollection is specified")
}
if len(restore.NSOptions.ExcludedCollectionPrefixes) > 0 && restore.NSOptions.Collection != "" {
return fmt.Errorf("--collection is not allowed when --excludeCollectionsWithPrefix is specified")
}
excludes := restore.NSOptions.NSExclude
for _, col := range restore.NSOptions.ExcludedCollections {
excludes = append(excludes, "*."+ns.Escape(col))
}
for _, colPrefix := range restore.NSOptions.ExcludedCollectionPrefixes {
excludes = append(excludes, "*."+ns.Escape(colPrefix)+"*")
}
restore.excluder, err = ns.NewMatcher(excludes)
if err != nil {
return fmt.Errorf("invalid excludes: %v", err)
}
if len(restore.NSOptions.NSFrom) != len(restore.NSOptions.NSTo) {
return fmt.Errorf("--nsFrom and --nsTo arguments must be specified an equal number of times")
}
restore.renamer, err = ns.NewRenamer(restore.NSOptions.NSFrom, restore.NSOptions.NSTo)
if err != nil {
return fmt.Errorf("invalid renames: %v", err)
}
if restore.OutputOptions.NumInsertionWorkers < 0 {
return fmt.Errorf(
"cannot specify a negative number of insertion workers per collection")
}
// a single dash signals reading from stdin
if restore.TargetDirectory == "-" {
if restore.InputOptions.Archive != "" {
return fmt.Errorf(
"cannot restore from \"-\" when --archive is specified")
}
if restore.NSOptions.Collection == "" {
return fmt.Errorf("cannot restore from stdin without a specified collection")
}
}
if restore.stdin == nil {
restore.stdin = os.Stdin
}
return nil
}
// ValidateSettings ensures that the tool specific options supplied for
// MongoImport are valid.
func (imp *MongoImport) ValidateSettings(args []string) error {
// namespace must have a valid database; if none is specified, use 'test'
if imp.ToolOptions.DB == "" {
imp.ToolOptions.DB = "test"
}
err := util.ValidateDBName(imp.ToolOptions.DB)
if err != nil {
return fmt.Errorf("invalid database name: %v", err)
}
imp.InputOptions.Type = strings.ToLower(imp.InputOptions.Type)
// use JSON as default input type
if imp.InputOptions.Type == "" {
imp.InputOptions.Type = JSON
} else {
if !(imp.InputOptions.Type == TSV ||
imp.InputOptions.Type == JSON ||
imp.InputOptions.Type == CSV) {
return fmt.Errorf("unknown type %v", imp.InputOptions.Type)
}
}
// ensure headers are supplied for CSV/TSV
if imp.InputOptions.Type == CSV ||
imp.InputOptions.Type == TSV {
if !imp.InputOptions.HeaderLine {
if imp.InputOptions.Fields == nil &&
imp.InputOptions.FieldFile == nil {
return fmt.Errorf("must specify --fields, --fieldFile or --headerline to import this file type")
}
if imp.InputOptions.FieldFile != nil &&
*imp.InputOptions.FieldFile == "" {
return fmt.Errorf("--fieldFile can not be empty string")
}
if imp.InputOptions.Fields != nil &&
imp.InputOptions.FieldFile != nil {
return fmt.Errorf("incompatible options: --fields and --fieldFile")
}
} else {
if imp.InputOptions.Fields != nil {
return fmt.Errorf("incompatible options: --fields and --headerline")
}
if imp.InputOptions.FieldFile != nil {
return fmt.Errorf("incompatible options: --fieldFile and --headerline")
}
}
if _, err := ValidatePG(imp.InputOptions.ParseGrace); err != nil {
return err
}
} else {
// input type is JSON
if imp.InputOptions.HeaderLine {
return fmt.Errorf("can not use --headerline when input type is JSON")
}
if imp.InputOptions.Fields != nil {
return fmt.Errorf("can not use --fields when input type is JSON")
}
if imp.InputOptions.FieldFile != nil {
return fmt.Errorf("can not use --fieldFile when input type is JSON")
}
if imp.IngestOptions.IgnoreBlanks {
return fmt.Errorf("can not use --ignoreBlanks when input type is JSON")
}
if imp.InputOptions.ColumnsHaveTypes {
return fmt.Errorf("can not use --columnsHaveTypes when input type is JSON")
}
}
// deprecated
if imp.IngestOptions.Upsert == true {
imp.IngestOptions.Mode = modeUpsert
}
// parse UpsertFields, may set default mode to modeUpsert
if imp.IngestOptions.UpsertFields != "" {
if imp.IngestOptions.Mode == "" {
imp.IngestOptions.Mode = modeUpsert
} else if imp.IngestOptions.Mode == modeInsert {
return fmt.Errorf("can not use --upsertFields with --mode=insert")
}
imp.upsertFields = strings.Split(imp.IngestOptions.UpsertFields, ",")
if err := validateFields(imp.upsertFields); err != nil {
return fmt.Errorf("invalid --upsertFields argument: %v", err)
}
} else if imp.IngestOptions.Mode != modeInsert {
imp.upsertFields = []string{"_id"}
}
// set default mode, must be after parsing UpsertFields
if imp.IngestOptions.Mode == "" {
imp.IngestOptions.Mode = modeInsert
}
// double-check mode choices
if !(imp.IngestOptions.Mode == modeInsert ||
imp.IngestOptions.Mode == modeUpsert ||
imp.IngestOptions.Mode == modeMerge) {
return fmt.Errorf("invalid --mode argument: %v", imp.IngestOptions.Mode)
}
if imp.IngestOptions.Mode != modeInsert {
imp.IngestOptions.MaintainInsertionOrder = true
log.Logvf(log.Info, "using upsert fields: %v", imp.upsertFields)
}
// set the number of decoding workers to use for imports
if imp.IngestOptions.NumDecodingWorkers <= 0 {
imp.IngestOptions.NumDecodingWorkers = imp.ToolOptions.MaxProcs
}
log.Logvf(log.DebugLow, "using %v decoding workers", imp.IngestOptions.NumDecodingWorkers)
// set the number of insertion workers to use for imports
if imp.IngestOptions.NumInsertionWorkers <= 0 {
imp.IngestOptions.NumInsertionWorkers = 1
}
log.Logvf(log.DebugLow, "using %v insert workers", imp.IngestOptions.NumInsertionWorkers)
// if --maintainInsertionOrder is set, we can only allow 1 insertion worker
if imp.IngestOptions.MaintainInsertionOrder {
imp.IngestOptions.NumInsertionWorkers = 1
}
// get the number of documents per batch
if imp.IngestOptions.BulkBufferSize <= 0 || imp.IngestOptions.BulkBufferSize > 1000 {
imp.IngestOptions.BulkBufferSize = 1000
}
// ensure no more than one positional argument is supplied
if len(args) > 1 {
return fmt.Errorf("only one positional argument is allowed")
}
// ensure either a positional argument is supplied or an argument is passed
// to the --file flag - and not both
if imp.InputOptions.File != "" && len(args) != 0 {
return fmt.Errorf("incompatible options: --file and positional argument(s)")
}
if imp.InputOptions.File == "" {
if len(args) != 0 {
// if --file is not supplied, use the positional argument supplied
imp.InputOptions.File = args[0]
}
}
// ensure we have a valid string to use for the collection
if imp.ToolOptions.Collection == "" {
log.Logvf(log.Always, "no collection specified")
fileBaseName := filepath.Base(imp.InputOptions.File)
lastDotIndex := strings.LastIndex(fileBaseName, ".")
if lastDotIndex != -1 {
fileBaseName = fileBaseName[0:lastDotIndex]
}
log.Logvf(log.Always, "using filename '%v' as collection", fileBaseName)
imp.ToolOptions.Collection = fileBaseName
}
err = util.ValidateCollectionName(imp.ToolOptions.Collection)
if err != nil {
return fmt.Errorf("invalid collection name: %v", err)
}
return nil
}
// ParseAndValidateOptions returns a non-nil error if user-supplied options are invalid.
func (restore *MongoRestore) ParseAndValidateOptions() error {
// Can't use option pkg defaults for --objcheck because it's two separate flags,
// and we need to be able to see if they're both being used. We default to
// true here and then see if noobjcheck is enabled.
log.Log(log.DebugHigh, "checking options")
if restore.InputOptions.Objcheck {
restore.objCheck = true
log.Log(log.DebugHigh, "\tdumping with object check enabled")
} else {
log.Log(log.DebugHigh, "\tdumping with object check disabled")
}
if restore.ToolOptions.DB == "" && restore.ToolOptions.Collection != "" {
return fmt.Errorf("cannot dump a collection without a specified database")
}
if restore.ToolOptions.DB != "" {
if err := util.ValidateDBName(restore.ToolOptions.DB); err != nil {
return fmt.Errorf("invalid db name: %v", err)
}
}
if restore.ToolOptions.Collection != "" {
if err := util.ValidateCollectionGrammar(restore.ToolOptions.Collection); err != nil {
return fmt.Errorf("invalid collection name: %v", err)
}
}
if restore.InputOptions.RestoreDBUsersAndRoles && restore.ToolOptions.DB == "" {
return fmt.Errorf("cannot use --restoreDbUsersAndRoles without a specified database")
}
if restore.InputOptions.RestoreDBUsersAndRoles && restore.ToolOptions.DB == "admin" {
return fmt.Errorf("cannot use --restoreDbUsersAndRoles with the admin database")
}
var err error
restore.isMongos, err = restore.SessionProvider.IsMongos()
if err != nil {
return err
}
if restore.isMongos {
log.Log(log.DebugLow, "restoring to a sharded system")
}
if restore.InputOptions.OplogLimit != "" {
if !restore.InputOptions.OplogReplay {
return fmt.Errorf("cannot use --oplogLimit without --oplogReplay enabled")
}
restore.oplogLimit, err = ParseTimestampFlag(restore.InputOptions.OplogLimit)
if err != nil {
return fmt.Errorf("error parsing timestamp argument to --oplogLimit: %v", err)
}
}
// check if we are using a replica set and fall back to w=1 if we aren't (for <= 2.4)
nodeType, err := restore.SessionProvider.GetNodeType()
if err != nil {
return fmt.Errorf("error determining type of connected node: %v", err)
}
log.Logf(log.DebugLow, "connected to node type: %v", nodeType)
restore.safety, err = db.BuildWriteConcern(restore.OutputOptions.WriteConcern, nodeType)
if err != nil {
return fmt.Errorf("error parsing write concern: %v", err)
}
// handle the hidden auth collection flags
if restore.ToolOptions.HiddenOptions.TempUsersColl == nil {
restore.tempUsersCol = "tempusers"
} else {
restore.tempUsersCol = *restore.ToolOptions.HiddenOptions.TempUsersColl
}
if restore.ToolOptions.HiddenOptions.TempRolesColl == nil {
restore.tempRolesCol = "temproles"
} else {
restore.tempRolesCol = *restore.ToolOptions.HiddenOptions.TempRolesColl
}
if restore.OutputOptions.NumInsertionWorkers < 0 {
return fmt.Errorf(
"cannot specify a negative number of insertion workers per collection")
}
// a single dash signals reading from stdin
if restore.TargetDirectory == "-" {
restore.useStdin = true
if restore.InputOptions.Archive != "" {
return fmt.Errorf(
"cannot restore from \"-\" when --archive is specified")
}
if restore.ToolOptions.Collection == "" {
return fmt.Errorf("cannot restore from stdin without a specified collection")
}
}
return nil
}
// CreateAllIntents drills down into a dump folder, creating intents for all of
// the databases and collections it finds.
func (restore *MongoRestore) CreateAllIntents(dir archive.DirLike, filterDB string, filterCollection string) error {
log.Logf(log.DebugHigh, "using %v as dump root directory", dir.Path())
foundOplog := false
entries, err := dir.ReadDir()
if err != nil {
return fmt.Errorf("error reading root dump folder: %v", err)
}
for _, entry := range entries {
if entry.IsDir() {
if err = util.ValidateDBName(entry.Name()); err != nil {
return fmt.Errorf("invalid database name '%v': %v", entry.Name(), err)
}
if filterDB == "" || entry.Name() == filterDB {
err = restore.CreateIntentsForDB(entry.Name(), filterCollection, entry, false)
} else {
err = restore.CreateIntentsForDB(entry.Name(), "", entry, true)
}
if err != nil {
return err
}
} else {
if entry.Name() == "oplog.bson" {
if restore.InputOptions.OplogReplay {
log.Log(log.DebugLow, "found oplog.bson file to replay")
}
foundOplog = true
oplogIntent := &intents.Intent{
C: "oplog",
Size: entry.Size(),
Location: entry.Path(),
}
// filterDB is used to mimic CreateIntentsForDB, and since CreateIntentsForDB wouldn't
// apply the oplog, even when asked, we don't either.
if filterDB != "" || !restore.InputOptions.OplogReplay {
if restore.InputOptions.Archive == "" {
continue
} else {
mutedOut := &archive.MutedCollection{
Intent: oplogIntent,
Demux: restore.archive.Demux,
}
restore.archive.Demux.Open(
oplogIntent.Namespace(),
mutedOut,
)
continue
}
}
if restore.InputOptions.Archive != "" {
if restore.InputOptions.Archive == "-" {
oplogIntent.Location = "archive on stdin"
} else {
oplogIntent.Location = fmt.Sprintf("archive '%v'", restore.InputOptions.Archive)
}
// no need to check that we want to cache here
oplogIntent.BSONFile =
&archive.RegularCollectionReceiver{
Intent: oplogIntent,
Demux: restore.archive.Demux,
}
} else {
oplogIntent.BSONFile = &realBSONFile{path: entry.Path(), intent: oplogIntent, gzip: restore.InputOptions.Gzip}
}
restore.manager.Put(oplogIntent)
} else {
log.Logf(log.Always, `don't know what to do with file "%v", skipping...`, entry.Path())
}
}
}
if restore.InputOptions.OplogReplay && !foundOplog {
return fmt.Errorf("no %v/oplog.bson file to replay; make sure you run mongodump with --oplog", dir.Path())
}
return nil
}
// CreateAllIntents drills down into a dump folder, creating intents for all of
// the databases and collections it finds.
func (restore *MongoRestore) CreateAllIntents(dir archive.DirLike) error {
log.Logvf(log.DebugHigh, "using %v as dump root directory", dir.Path())
entries, err := dir.ReadDir()
if err != nil {
return fmt.Errorf("error reading root dump folder: %v", err)
}
for _, entry := range entries {
if entry.IsDir() {
if err = util.ValidateDBName(entry.Name()); err != nil {
return fmt.Errorf("invalid database name '%v': %v", entry.Name(), err)
}
err = restore.CreateIntentsForDB(entry.Name(), entry)
if err != nil {
return err
}
} else {
if entry.Name() == "oplog.bson" {
if restore.InputOptions.OplogReplay {
log.Logv(log.DebugLow, "found oplog.bson file to replay")
}
oplogIntent := &intents.Intent{
C: "oplog",
Size: entry.Size(),
Location: entry.Path(),
}
if !restore.InputOptions.OplogReplay {
if restore.InputOptions.Archive != "" {
mutedOut := &archive.MutedCollection{
Intent: oplogIntent,
Demux: restore.archive.Demux,
}
restore.archive.Demux.Open(
oplogIntent.Namespace(),
mutedOut,
)
}
continue
}
if restore.InputOptions.Archive != "" {
if restore.InputOptions.Archive == "-" {
oplogIntent.Location = "archive on stdin"
} else {
oplogIntent.Location = fmt.Sprintf("archive '%v'", restore.InputOptions.Archive)
}
// no need to check that we want to cache here
oplogIntent.BSONFile = &archive.RegularCollectionReceiver{
Intent: oplogIntent,
Origin: oplogIntent.Namespace(),
Demux: restore.archive.Demux,
}
} else {
oplogIntent.BSONFile = &realBSONFile{path: entry.Path(), intent: oplogIntent, gzip: restore.InputOptions.Gzip}
}
restore.manager.Put(oplogIntent)
} else {
log.Logvf(log.Always, `don't know what to do with file "%v", skipping...`, entry.Path())
}
}
}
return nil
}