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mysql: update mysql driver to latest master

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The latest master implements the ColumnType interface.

See https://github.com/go-sql-driver/mysql/issues/495

This removes the custom code in the vendor folder that
did a ColumnType mapping.
This commit is contained in:
Daniel Lee
2018-01-18 11:50:16 +01:00
parent a32644198c
commit 7bc7af6c39
21 changed files with 1043 additions and 367 deletions
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vendor/github.com/go-sql-driver/mysql/packets.go
Generated Vendored
+93 -55
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@@ -30,9 +30,12 @@ func (mc *mysqlConn) readPacket() ([]byte, error) {
// read packet header
data, err := mc.buf.readNext(4)
if err != nil {
if cerr := mc.canceled.Value(); cerr != nil {
return nil, cerr
}
errLog.Print(err)
mc.Close()
return nil, driver.ErrBadConn
return nil, ErrInvalidConn
}
// packet length [24 bit]
@@ -54,7 +57,7 @@ func (mc *mysqlConn) readPacket() ([]byte, error) {
if prevData == nil {
errLog.Print(ErrMalformPkt)
mc.Close()
return nil, driver.ErrBadConn
return nil, ErrInvalidConn
}
return prevData, nil
@@ -63,9 +66,12 @@ func (mc *mysqlConn) readPacket() ([]byte, error) {
// read packet body [pktLen bytes]
data, err = mc.buf.readNext(pktLen)
if err != nil {
if cerr := mc.canceled.Value(); cerr != nil {
return nil, cerr
}
errLog.Print(err)
mc.Close()
return nil, driver.ErrBadConn
return nil, ErrInvalidConn
}
// return data if this was the last packet
@@ -125,11 +131,20 @@ func (mc *mysqlConn) writePacket(data []byte) error {
// Handle error
if err == nil { // n != len(data)
mc.cleanup()
errLog.Print(ErrMalformPkt)
} else {
if cerr := mc.canceled.Value(); cerr != nil {
return cerr
}
if n == 0 && pktLen == len(data)-4 {
// only for the first loop iteration when nothing was written yet
return errBadConnNoWrite
}
mc.cleanup()
errLog.Print(err)
}
return driver.ErrBadConn
return ErrInvalidConn
}
}
@@ -263,7 +278,7 @@ func (mc *mysqlConn) writeAuthPacket(cipher []byte) error {
if data == nil {
// can not take the buffer. Something must be wrong with the connection
errLog.Print(ErrBusyBuffer)
return driver.ErrBadConn
return errBadConnNoWrite
}
// ClientFlags [32 bit]
@@ -341,7 +356,9 @@ func (mc *mysqlConn) writeAuthPacket(cipher []byte) error {
// http://dev.mysql.com/doc/internals/en/connection-phase-packets.html#packet-Protocol::AuthSwitchResponse
func (mc *mysqlConn) writeOldAuthPacket(cipher []byte) error {
// User password
scrambleBuff := scrambleOldPassword(cipher, []byte(mc.cfg.Passwd))
// https://dev.mysql.com/doc/internals/en/old-password-authentication.html
// Old password authentication only need and will need 8-byte challenge.
scrambleBuff := scrambleOldPassword(cipher[:8], []byte(mc.cfg.Passwd))
// Calculate the packet length and add a tailing 0
pktLen := len(scrambleBuff) + 1
@@ -349,7 +366,7 @@ func (mc *mysqlConn) writeOldAuthPacket(cipher []byte) error {
if data == nil {
// can not take the buffer. Something must be wrong with the connection
errLog.Print(ErrBusyBuffer)
return driver.ErrBadConn
return errBadConnNoWrite
}
// Add the scrambled password [null terminated string]
@@ -368,7 +385,7 @@ func (mc *mysqlConn) writeClearAuthPacket() error {
if data == nil {
// can not take the buffer. Something must be wrong with the connection
errLog.Print(ErrBusyBuffer)
return driver.ErrBadConn
return errBadConnNoWrite
}
// Add the clear password [null terminated string]
@@ -381,7 +398,9 @@ func (mc *mysqlConn) writeClearAuthPacket() error {
// Native password authentication method
// http://dev.mysql.com/doc/internals/en/connection-phase-packets.html#packet-Protocol::AuthSwitchResponse
func (mc *mysqlConn) writeNativeAuthPacket(cipher []byte) error {
scrambleBuff := scramblePassword(cipher, []byte(mc.cfg.Passwd))
// https://dev.mysql.com/doc/internals/en/secure-password-authentication.html
// Native password authentication only need and will need 20-byte challenge.
scrambleBuff := scramblePassword(cipher[0:20], []byte(mc.cfg.Passwd))
// Calculate the packet length and add a tailing 0
pktLen := len(scrambleBuff)
@@ -389,7 +408,7 @@ func (mc *mysqlConn) writeNativeAuthPacket(cipher []byte) error {
if data == nil {
// can not take the buffer. Something must be wrong with the connection
errLog.Print(ErrBusyBuffer)
return driver.ErrBadConn
return errBadConnNoWrite
}
// Add the scramble
@@ -410,7 +429,7 @@ func (mc *mysqlConn) writeCommandPacket(command byte) error {
if data == nil {
// can not take the buffer. Something must be wrong with the connection
errLog.Print(ErrBusyBuffer)
return driver.ErrBadConn
return errBadConnNoWrite
}
// Add command byte
@@ -429,7 +448,7 @@ func (mc *mysqlConn) writeCommandPacketStr(command byte, arg string) error {
if data == nil {
// can not take the buffer. Something must be wrong with the connection
errLog.Print(ErrBusyBuffer)
return driver.ErrBadConn
return errBadConnNoWrite
}
// Add command byte
@@ -450,7 +469,7 @@ func (mc *mysqlConn) writeCommandPacketUint32(command byte, arg uint32) error {
if data == nil {
// can not take the buffer. Something must be wrong with the connection
errLog.Print(ErrBusyBuffer)
return driver.ErrBadConn
return errBadConnNoWrite
}
// Add command byte
@@ -484,25 +503,26 @@ func (mc *mysqlConn) readResultOK() ([]byte, error) {
if len(data) > 1 {
pluginEndIndex := bytes.IndexByte(data, 0x00)
plugin := string(data[1:pluginEndIndex])
cipher := data[pluginEndIndex+1 : len(data)-1]
cipher := data[pluginEndIndex+1:]
if plugin == "mysql_old_password" {
switch plugin {
case "mysql_old_password":
// using old_passwords
return cipher, ErrOldPassword
} else if plugin == "mysql_clear_password" {
case "mysql_clear_password":
// using clear text password
return cipher, ErrCleartextPassword
} else if plugin == "mysql_native_password" {
case "mysql_native_password":
// using mysql default authentication method
return cipher, ErrNativePassword
} else {
default:
return cipher, ErrUnknownPlugin
}
} else {
// https://dev.mysql.com/doc/internals/en/connection-phase-packets.html#packet-Protocol::OldAuthSwitchRequest
return nil, ErrOldPassword
}
// https://dev.mysql.com/doc/internals/en/connection-phase-packets.html#packet-Protocol::OldAuthSwitchRequest
return nil, ErrOldPassword
default: // Error otherwise
return nil, mc.handleErrorPacket(data)
}
@@ -550,6 +570,22 @@ func (mc *mysqlConn) handleErrorPacket(data []byte) error {
// Error Number [16 bit uint]
errno := binary.LittleEndian.Uint16(data[1:3])
// 1792: ER_CANT_EXECUTE_IN_READ_ONLY_TRANSACTION
// 1290: ER_OPTION_PREVENTS_STATEMENT (returned by Aurora during failover)
if (errno == 1792 || errno == 1290) && mc.cfg.RejectReadOnly {
// Oops; we are connected to a read-only connection, and won't be able
// to issue any write statements. Since RejectReadOnly is configured,
// we throw away this connection hoping this one would have write
// permission. This is specifically for a possible race condition
// during failover (e.g. on AWS Aurora). See README.md for more.
//
// We explicitly close the connection before returning
// driver.ErrBadConn to ensure that `database/sql` purges this
// connection and initiates a new one for next statement next time.
mc.Close()
return driver.ErrBadConn
}
pos := 3
// SQL State [optional: # + 5bytes string]
@@ -589,14 +625,7 @@ func (mc *mysqlConn) handleOkPacket(data []byte) error {
}
// warning count [2 bytes]
if !mc.strict {
return nil
}
pos := 1 + n + m + 2
if binary.LittleEndian.Uint16(data[pos:pos+2]) > 0 {
return mc.getWarnings()
}
return nil
}
@@ -668,14 +697,21 @@ func (mc *mysqlConn) readColumns(count int) ([]mysqlField, error) {
if err != nil {
return nil, err
}
pos += n
// Filler [uint8]
pos++
// Charset [charset, collation uint8]
columns[i].charSet = data[pos]
pos += 2
// Length [uint32]
pos += n + 1 + 2 + 4
columns[i].length = binary.LittleEndian.Uint32(data[pos : pos+4])
pos += 4
// Field type [uint8]
columns[i].fieldType = data[pos]
columns[i].fieldType = fieldType(data[pos])
pos++
// Flags [uint16]
@@ -808,14 +844,7 @@ func (stmt *mysqlStmt) readPrepareResultPacket() (uint16, error) {
// Reserved [8 bit]
// Warning count [16 bit uint]
if !stmt.mc.strict {
return columnCount, nil
}
// Check for warnings count > 0, only available in MySQL > 4.1
if len(data) >= 12 && binary.LittleEndian.Uint16(data[10:12]) > 0 {
return columnCount, stmt.mc.getWarnings()
}
return columnCount, nil
}
return 0, err
@@ -887,6 +916,12 @@ func (stmt *mysqlStmt) writeExecutePacket(args []driver.Value) error {
const minPktLen = 4 + 1 + 4 + 1 + 4
mc := stmt.mc
// Determine threshould dynamically to avoid packet size shortage.
longDataSize := mc.maxAllowedPacket / (stmt.paramCount + 1)
if longDataSize < 64 {
longDataSize = 64
}
// Reset packet-sequence
mc.sequence = 0
@@ -900,7 +935,7 @@ func (stmt *mysqlStmt) writeExecutePacket(args []driver.Value) error {
if data == nil {
// can not take the buffer. Something must be wrong with the connection
errLog.Print(ErrBusyBuffer)
return driver.ErrBadConn
return errBadConnNoWrite
}
// command [1 byte]
@@ -959,7 +994,7 @@ func (stmt *mysqlStmt) writeExecutePacket(args []driver.Value) error {
// build NULL-bitmap
if arg == nil {
nullMask[i/8] |= 1 << (uint(i) & 7)
paramTypes[i+i] = fieldTypeNULL
paramTypes[i+i] = byte(fieldTypeNULL)
paramTypes[i+i+1] = 0x00
continue
}
@@ -967,7 +1002,7 @@ func (stmt *mysqlStmt) writeExecutePacket(args []driver.Value) error {
// cache types and values
switch v := arg.(type) {
case int64:
paramTypes[i+i] = fieldTypeLongLong
paramTypes[i+i] = byte(fieldTypeLongLong)
paramTypes[i+i+1] = 0x00
if cap(paramValues)-len(paramValues)-8 >= 0 {
@@ -983,7 +1018,7 @@ func (stmt *mysqlStmt) writeExecutePacket(args []driver.Value) error {
}
case float64:
paramTypes[i+i] = fieldTypeDouble
paramTypes[i+i] = byte(fieldTypeDouble)
paramTypes[i+i+1] = 0x00
if cap(paramValues)-len(paramValues)-8 >= 0 {
@@ -999,7 +1034,7 @@ func (stmt *mysqlStmt) writeExecutePacket(args []driver.Value) error {
}
case bool:
paramTypes[i+i] = fieldTypeTiny
paramTypes[i+i] = byte(fieldTypeTiny)
paramTypes[i+i+1] = 0x00
if v {
@@ -1011,10 +1046,10 @@ func (stmt *mysqlStmt) writeExecutePacket(args []driver.Value) error {
case []byte:
// Common case (non-nil value) first
if v != nil {
paramTypes[i+i] = fieldTypeString
paramTypes[i+i] = byte(fieldTypeString)
paramTypes[i+i+1] = 0x00
if len(v) < mc.maxAllowedPacket-pos-len(paramValues)-(len(args)-(i+1))*64 {
if len(v) < longDataSize {
paramValues = appendLengthEncodedInteger(paramValues,
uint64(len(v)),
)
@@ -1029,14 +1064,14 @@ func (stmt *mysqlStmt) writeExecutePacket(args []driver.Value) error {
// Handle []byte(nil) as a NULL value
nullMask[i/8] |= 1 << (uint(i) & 7)
paramTypes[i+i] = fieldTypeNULL
paramTypes[i+i] = byte(fieldTypeNULL)
paramTypes[i+i+1] = 0x00
case string:
paramTypes[i+i] = fieldTypeString
paramTypes[i+i] = byte(fieldTypeString)
paramTypes[i+i+1] = 0x00
if len(v) < mc.maxAllowedPacket-pos-len(paramValues)-(len(args)-(i+1))*64 {
if len(v) < longDataSize {
paramValues = appendLengthEncodedInteger(paramValues,
uint64(len(v)),
)
@@ -1048,20 +1083,22 @@ func (stmt *mysqlStmt) writeExecutePacket(args []driver.Value) error {
}
case time.Time:
paramTypes[i+i] = fieldTypeString
paramTypes[i+i] = byte(fieldTypeString)
paramTypes[i+i+1] = 0x00
var val []byte
var a [64]byte
var b = a[:0]
if v.IsZero() {
val = []byte("0000-00-00")
b = append(b, "0000-00-00"...)
} else {
val = []byte(v.In(mc.cfg.Loc).Format(timeFormat))
b = v.In(mc.cfg.Loc).AppendFormat(b, timeFormat)
}
paramValues = appendLengthEncodedInteger(paramValues,
uint64(len(val)),
uint64(len(b)),
)
paramValues = append(paramValues, val...)
paramValues = append(paramValues, b...)
default:
return fmt.Errorf("can not convert type: %T", arg)
@@ -1120,10 +1157,11 @@ func (rows *binaryRows) readRow(dest []driver.Value) error {
}
return io.EOF
}
mc := rows.mc
rows.mc = nil
// Error otherwise
return rows.mc.handleErrorPacket(data)
return mc.handleErrorPacket(data)
}
// NULL-bitmap, [(column-count + 7 + 2) / 8 bytes]
@@ -1187,7 +1225,7 @@ func (rows *binaryRows) readRow(dest []driver.Value) error {
continue
case fieldTypeFloat:
dest[i] = float32(math.Float32frombits(binary.LittleEndian.Uint32(data[pos : pos+4])))
dest[i] = math.Float32frombits(binary.LittleEndian.Uint32(data[pos : pos+4]))
pos += 4
continue