func getDatasetNameFromFile(filename string) core.String {
// Open the file, read and check the file headers
fil, err := os.Open(filepath.Join(datDirectory, "account", filename))
PanicOn(err)
defer fil.Close()
var header dbFileHeader
header.Unserialize(fil)
if header.filetype != dbFileTypeTransaction {
panic(errors.New("File " + filename + " is not a valid transaction file"))
}
datasetName := header.datasetName
var datasetNameH core.Byte128
{
d, err := base64.RawURLEncoding.DecodeString(filename[23:45])
PanicOn(err)
datasetNameH.Set(d)
}
datasetHashB := core.Hash([]byte(datasetName))
if datasetHashB.Compare(datasetNameH) != 0 {
panic(errors.New("Header for " + filename + " does not contain the correct dataset name"))
}
return datasetName
}
func (handler *AccountHandler) RebuildAccountFiles() (rootBlocks []BlockSource) {
// Open each dataset and check the chains
dir, err := os.Open(filepath.Join(datDirectory, "account"))
PanicOn(err)
defer dir.Close()
dirlist, err := dir.Readdir(-1)
PanicOn(err)
for _, info := range dirlist { // Clear all cached dataset information from the info files
name := info.Name()
if m, _ := filepath.Match("??????????????????????.info", name); m {
// Read the accountNameH from the filename
var accountNameH core.Byte128
{
decoded, err := base64.RawURLEncoding.DecodeString(name[:22])
PanicOn(err)
accountNameH.Set(decoded)
}
info := readInfoFile(accountNameH)
if info != nil {
info.Datasets = nil
writeInfoFile(accountNameH, *info)
}
}
}
for _, info := range dirlist {
name := info.Name()
if m, _ := filepath.Match("??????????????????????.??????????????????????.trn", name); m {
// Read the accountNameH from the filename
var accountName string
var accountNameH core.Byte128
{
decoded, err := base64.RawURLEncoding.DecodeString(name[:22])
PanicOn(err)
accountNameH.Set(decoded)
info := readInfoFile(accountNameH)
if info != nil {
accountName = string(info.AccountName)
}
}
datasetName := getDatasetNameFromFile(name)
core.Log(core.LogDebug, "Regenerating file %s.db (%s.%s)", name[:45], accountName, datasetName)
// Generate the DB file from transactions
states := stateArrayFromTransactions(accountNameH, datasetName)
sort.Sort(states)
writeDBFile(accountNameH, datasetName, &dbStateCollection{States: states})
for _, e := range states {
rootBlocks = append(rootBlocks, BlockSource{BlockID: e.State.BlockID, StateID: e.State.StateID, DatasetName: datasetName, AccountNameH: accountNameH, AccountName: string(accountName)})
}
}
}
return rootBlocks
}
func (handler *AccountHandler) CollectAllRootBlocks(skipInvalid bool) (rootBlocks []BlockSource) {
// Open each dataset and check the chains
dir, err := os.Open(filepath.Join(datDirectory, "account"))
PanicOn(err)
defer dir.Close()
dirlist, err := dir.Readdir(-1)
PanicOn(err)
for _, info := range dirlist {
name := info.Name()
if m, _ := filepath.Match("??????????????????????.??????????????????????.trn", name); m {
// Read the accountNameH from the filename
var accountName string
var accountNameH core.Byte128
{
decoded, err := base64.RawURLEncoding.DecodeString(name[:22])
PanicOn(err)
accountNameH.Set(decoded)
info := readInfoFile(accountNameH)
if info != nil {
accountName = string(info.AccountName)
}
}
datasetName := getDatasetNameFromFile(name)
collection := readDBFile(accountNameH, datasetName)
if collection == nil {
panic("InvalidateDatasetState was called on a DB file which cannot be opened")
}
for _, e := range collection.States {
if e.StateFlags&core.StateFlagInvalid == core.StateFlagInvalid {
if skipInvalid {
core.Log(core.LogWarning, "All data referenced by %s.%s.%x will be marked for removal unless referenced elsewhere", accountName, datasetName, e.State.StateID[:])
} else {
panic(errors.New(fmt.Sprintf("Dataset %s.%s.%x is referencing data with a broken block chain", accountName, datasetName, e.State.StateID[:])))
}
} else {
rootBlocks = append(rootBlocks, BlockSource{BlockID: e.State.BlockID, StateID: e.State.StateID, DatasetName: datasetName, AccountNameH: accountNameH, AccountName: string(accountName)})
}
}
}
}
return rootBlocks
}