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Use a read-only snapshot transaction for calculating sync responses (#236)

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* Use a read-only snapshot transaction for calculating sync responses

* gb vendor update github.com/lib/pq
This commit is contained in:
Mark Haines 2017-09-19 16:22:02 +01:00 committed by GitHub
parent 08b9940dde
commit fbc4477be0
20 changed files with 1374 additions and 527 deletions
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205
src/github.com/matrix-org/dendrite/syncapi/storage/syncserver.go
View file

@ -187,114 +187,145 @@ func (d *SyncServerDatabase) IncrementalSync(
userID string,
fromPos, toPos types.StreamPosition,
numRecentEventsPerRoom int,
) (res *types.Response, returnErr error) {
returnErr = common.WithTransaction(d.db, func(txn *sql.Tx) error {
// Work out which rooms to return in the response. This is done by getting not only the currently
// joined rooms, but also which rooms have membership transitions for this user between the 2 stream positions.
// This works out what the 'state' key should be for each room as well as which membership block
// to put the room into.
deltas, err := d.getStateDeltas(ctx, txn, fromPos, toPos, userID)
) (*types.Response, error) {
txn, err := d.db.BeginTx(ctx, &txReadOnlySnapshot)
if err != nil {
return nil, err
}
var succeeded bool
defer common.EndTransaction(txn, &succeeded)
// Work out which rooms to return in the response. This is done by getting not only the currently
// joined rooms, but also which rooms have membership transitions for this user between the 2 stream positions.
// This works out what the 'state' key should be for each room as well as which membership block
// to put the room into.
deltas, err := d.getStateDeltas(ctx, txn, fromPos, toPos, userID)
if err != nil {
return nil, err
}
res := types.NewResponse(toPos)
for _, delta := range deltas {
endPos := toPos
if delta.membershipPos > 0 && delta.membership == "leave" {
// make sure we don't leak recent events after the leave event.
// TODO: History visibility makes this somewhat complex to handle correctly. For example:
// TODO: This doesn't work for join -> leave in a single /sync request (see events prior to join).
// TODO: This will fail on join -> leave -> sensitive msg -> join -> leave
// in a single /sync request
// This is all "okay" assuming history_visibility == "shared" which it is by default.
endPos = delta.membershipPos
}
var recentStreamEvents []streamEvent
recentStreamEvents, err = d.events.selectRecentEvents(
ctx, txn, delta.roomID, fromPos, endPos, numRecentEventsPerRoom,
)
if err != nil {
return err
return nil, err
}
recentEvents := streamEventsToEvents(recentStreamEvents)
delta.stateEvents = removeDuplicates(delta.stateEvents, recentEvents) // roll back
res = types.NewResponse(toPos)
for _, delta := range deltas {
endPos := toPos
if delta.membershipPos > 0 && delta.membership == "leave" {
// make sure we don't leak recent events after the leave event.
// TODO: History visibility makes this somewhat complex to handle correctly. For example:
// TODO: This doesn't work for join -> leave in a single /sync request (see events prior to join).
// TODO: This will fail on join -> leave -> sensitive msg -> join -> leave
// in a single /sync request
// This is all "okay" assuming history_visibility == "shared" which it is by default.
endPos = delta.membershipPos
}
recentStreamEvents, err := d.events.selectRecentEvents(
ctx, txn, delta.roomID, fromPos, endPos, numRecentEventsPerRoom,
)
if err != nil {
return err
}
recentEvents := streamEventsToEvents(recentStreamEvents)
delta.stateEvents = removeDuplicates(delta.stateEvents, recentEvents) // roll back
switch delta.membership {
case "join":
jr := types.NewJoinResponse()
jr.Timeline.Events = gomatrixserverlib.ToClientEvents(recentEvents, gomatrixserverlib.FormatSync)
jr.Timeline.Limited = false // TODO: if len(events) >= numRecents + 1 and then set limited:true
jr.State.Events = gomatrixserverlib.ToClientEvents(delta.stateEvents, gomatrixserverlib.FormatSync)
res.Rooms.Join[delta.roomID] = *jr
case "leave":
fallthrough // transitions to leave are the same as ban
case "ban":
// TODO: recentEvents may contain events that this user is not allowed to see because they are
// no longer in the room.
lr := types.NewLeaveResponse()
lr.Timeline.Events = gomatrixserverlib.ToClientEvents(recentEvents, gomatrixserverlib.FormatSync)
lr.Timeline.Limited = false // TODO: if len(events) >= numRecents + 1 and then set limited:true
lr.State.Events = gomatrixserverlib.ToClientEvents(delta.stateEvents, gomatrixserverlib.FormatSync)
res.Rooms.Leave[delta.roomID] = *lr
}
switch delta.membership {
case "join":
jr := types.NewJoinResponse()
jr.Timeline.Events = gomatrixserverlib.ToClientEvents(recentEvents, gomatrixserverlib.FormatSync)
jr.Timeline.Limited = false // TODO: if len(events) >= numRecents + 1 and then set limited:true
jr.State.Events = gomatrixserverlib.ToClientEvents(delta.stateEvents, gomatrixserverlib.FormatSync)
res.Rooms.Join[delta.roomID] = *jr
case "leave":
fallthrough // transitions to leave are the same as ban
case "ban":
// TODO: recentEvents may contain events that this user is not allowed to see because they are
// no longer in the room.
lr := types.NewLeaveResponse()
lr.Timeline.Events = gomatrixserverlib.ToClientEvents(recentEvents, gomatrixserverlib.FormatSync)
lr.Timeline.Limited = false // TODO: if len(events) >= numRecents + 1 and then set limited:true
lr.State.Events = gomatrixserverlib.ToClientEvents(delta.stateEvents, gomatrixserverlib.FormatSync)
res.Rooms.Leave[delta.roomID] = *lr
}
}
// TODO: This should be done in getStateDeltas
return d.addInvitesToResponse(ctx, txn, userID, res)
})
return
// TODO: This should be done in getStateDeltas
if err = d.addInvitesToResponse(ctx, txn, userID, res); err != nil {
return nil, err
}
succeeded = true
return res, nil
}
// CompleteSync a complete /sync API response for the given user.
func (d *SyncServerDatabase) CompleteSync(
ctx context.Context, userID string, numRecentEventsPerRoom int,
) (res *types.Response, returnErr error) {
) (*types.Response, error) {
// This needs to be all done in a transaction as we need to do multiple SELECTs, and we need to have
// a consistent view of the database throughout. This includes extracting the sync stream position.
// This does have the unfortunate side-effect that all the matrixy logic resides in this function,
// but it's better to not hide the fact that this is being done in a transaction.
returnErr = common.WithTransaction(d.db, func(txn *sql.Tx) error {
// Get the current stream position which we will base the sync response on.
id, err := d.events.selectMaxID(ctx, txn)
txn, err := d.db.BeginTx(ctx, &txReadOnlySnapshot)
if err != nil {
return nil, err
}
var succeeded bool
defer common.EndTransaction(txn, &succeeded)
// Get the current stream position which we will base the sync response on.
id, err := d.events.selectMaxID(ctx, txn)
if err != nil {
return nil, err
}
pos := types.StreamPosition(id)
// Extract room state and recent events for all rooms the user is joined to.
roomIDs, err := d.roomstate.selectRoomIDsWithMembership(ctx, txn, userID, "join")
if err != nil {
return nil, err
}
// Build up a /sync response. Add joined rooms.
res := types.NewResponse(pos)
for _, roomID := range roomIDs {
var stateEvents []gomatrixserverlib.Event
stateEvents, err = d.roomstate.selectCurrentState(ctx, txn, roomID)
if err != nil {
return err
return nil, err
}
pos := types.StreamPosition(id)
// Extract room state and recent events for all rooms the user is joined to.
roomIDs, err := d.roomstate.selectRoomIDsWithMembership(ctx, txn, userID, "join")
// TODO: When filters are added, we may need to call this multiple times to get enough events.
// See: https://github.com/matrix-org/synapse/blob/v0.19.3/synapse/handlers/sync.py#L316
var recentStreamEvents []streamEvent
recentStreamEvents, err = d.events.selectRecentEvents(
ctx, txn, roomID, types.StreamPosition(0), pos, numRecentEventsPerRoom,
)
if err != nil {
return err
return nil, err
}
recentEvents := streamEventsToEvents(recentStreamEvents)
// Build up a /sync response. Add joined rooms.
res = types.NewResponse(pos)
for _, roomID := range roomIDs {
stateEvents, err := d.roomstate.selectCurrentState(ctx, txn, roomID)
if err != nil {
return err
}
// TODO: When filters are added, we may need to call this multiple times to get enough events.
// See: https://github.com/matrix-org/synapse/blob/v0.19.3/synapse/handlers/sync.py#L316
recentStreamEvents, err := d.events.selectRecentEvents(
ctx, txn, roomID, types.StreamPosition(0), pos, numRecentEventsPerRoom,
)
if err != nil {
return err
}
recentEvents := streamEventsToEvents(recentStreamEvents)
stateEvents = removeDuplicates(stateEvents, recentEvents)
jr := types.NewJoinResponse()
jr.Timeline.Events = gomatrixserverlib.ToClientEvents(recentEvents, gomatrixserverlib.FormatSync)
jr.Timeline.Limited = true
jr.State.Events = gomatrixserverlib.ToClientEvents(stateEvents, gomatrixserverlib.FormatSync)
res.Rooms.Join[roomID] = *jr
}
stateEvents = removeDuplicates(stateEvents, recentEvents)
jr := types.NewJoinResponse()
jr.Timeline.Events = gomatrixserverlib.ToClientEvents(recentEvents, gomatrixserverlib.FormatSync)
jr.Timeline.Limited = true
jr.State.Events = gomatrixserverlib.ToClientEvents(stateEvents, gomatrixserverlib.FormatSync)
res.Rooms.Join[roomID] = *jr
}
if err = d.addInvitesToResponse(ctx, txn, userID, res); err != nil {
return nil, err
}
return d.addInvitesToResponse(ctx, txn, userID, res)
})
return
succeeded = true
return res, err
}
var txReadOnlySnapshot = sql.TxOptions{
// Set the isolation level so that we see a snapshot of the database.
// In PostgreSQL repeatable read transactions will see a snapshot taken
// at the first query, and since the transaction is read-only it can't
// run into any serialisation errors.
// https://www.postgresql.org/docs/9.5/static/transaction-iso.html#XACT-REPEATABLE-READ
Isolation: sql.LevelRepeatableRead,
ReadOnly: true,
}
// GetAccountDataInRange returns all account data for a given user inserted or

2
vendor/manifest vendored
View file

@ -98,7 +98,7 @@
{
"importpath": "github.com/lib/pq",
"repository": "https://github.com/lib/pq",
"revision": "a6657b2386e9b8be76484c08711b02c7cf867ead",
"revision": "23da1db4f16d9658a86ae9b717c245fc078f10f1",
"branch": "master"
},
{

2
vendor/src/github.com/lib/pq/README.md vendored
View file

@ -1,6 +1,6 @@
# pq - A pure Go postgres driver for Go's database/sql package
[![Build Status](https://travis-ci.org/lib/pq.png?branch=master)](https://travis-ci.org/lib/pq)
[![Build Status](https://travis-ci.org/lib/pq.svg?branch=master)](https://travis-ci.org/lib/pq)
## Install

6
vendor/src/github.com/lib/pq/array.go vendored
View file

@ -13,7 +13,7 @@ import (
var typeByteSlice = reflect.TypeOf([]byte{})
var typeDriverValuer = reflect.TypeOf((*driver.Valuer)(nil)).Elem()
var typeSqlScanner = reflect.TypeOf((*sql.Scanner)(nil)).Elem()
var typeSQLScanner = reflect.TypeOf((*sql.Scanner)(nil)).Elem()
// Array returns the optimal driver.Valuer and sql.Scanner for an array or
// slice of any dimension.
@ -278,7 +278,7 @@ func (GenericArray) evaluateDestination(rt reflect.Type) (reflect.Type, func([]b
// TODO calculate the assign function for other types
// TODO repeat this section on the element type of arrays or slices (multidimensional)
{
if reflect.PtrTo(rt).Implements(typeSqlScanner) {
if reflect.PtrTo(rt).Implements(typeSQLScanner) {
// dest is always addressable because it is an element of a slice.
assign = func(src []byte, dest reflect.Value) (err error) {
ss := dest.Addr().Interface().(sql.Scanner)
@ -587,7 +587,7 @@ func appendArrayElement(b []byte, rv reflect.Value) ([]byte, string, error) {
}
}
var del string = ","
var del = ","
var err error
var iv interface{} = rv.Interface()

258
vendor/src/github.com/lib/pq/conn.go vendored
View file

@ -27,22 +27,22 @@ var (
ErrNotSupported = errors.New("pq: Unsupported command")
ErrInFailedTransaction = errors.New("pq: Could not complete operation in a failed transaction")
ErrSSLNotSupported = errors.New("pq: SSL is not enabled on the server")
ErrSSLKeyHasWorldPermissions = errors.New("pq: Private key file has group or world access. Permissions should be u=rw (0600) or less.")
ErrCouldNotDetectUsername = errors.New("pq: Could not detect default username. Please provide one explicitly.")
ErrSSLKeyHasWorldPermissions = errors.New("pq: Private key file has group or world access. Permissions should be u=rw (0600) or less")
ErrCouldNotDetectUsername = errors.New("pq: Could not detect default username. Please provide one explicitly")
errUnexpectedReady = errors.New("unexpected ReadyForQuery")
errNoRowsAffected = errors.New("no RowsAffected available after the empty statement")
errNoLastInsertId = errors.New("no LastInsertId available after the empty statement")
errNoLastInsertID = errors.New("no LastInsertId available after the empty statement")
)
type drv struct{}
type Driver struct{}
func (d *drv) Open(name string) (driver.Conn, error) {
func (d *Driver) Open(name string) (driver.Conn, error) {
return Open(name)
}
func init() {
sql.Register("postgres", &drv{})
sql.Register("postgres", &Driver{})
}
type parameterStatus struct {
@ -98,7 +98,7 @@ type conn struct {
namei int
scratch [512]byte
txnStatus transactionStatus
txnClosed chan<- struct{}
txnFinish func()
// Save connection arguments to use during CancelRequest.
dialer Dialer
@ -131,9 +131,9 @@ type conn struct {
}
// Handle driver-side settings in parsed connection string.
func (c *conn) handleDriverSettings(o values) (err error) {
func (cn *conn) handleDriverSettings(o values) (err error) {
boolSetting := func(key string, val *bool) error {
if value := o.Get(key); value != "" {
if value, ok := o[key]; ok {
if value == "yes" {
*val = true
} else if value == "no" {
@ -145,21 +145,20 @@ func (c *conn) handleDriverSettings(o values) (err error) {
return nil
}
err = boolSetting("disable_prepared_binary_result", &c.disablePreparedBinaryResult)
err = boolSetting("disable_prepared_binary_result", &cn.disablePreparedBinaryResult)
if err != nil {
return err
}
err = boolSetting("binary_parameters", &c.binaryParameters)
err = boolSetting("binary_parameters", &cn.binaryParameters)
if err != nil {
return err
}
return nil
}
func (c *conn) handlePgpass(o values) {
func (cn *conn) handlePgpass(o values) {
// if a password was supplied, do not process .pgpass
_, ok := o["password"]
if ok {
if _, ok := o["password"]; ok {
return
}
filename := os.Getenv("PGPASSFILE")
@ -187,11 +186,11 @@ func (c *conn) handlePgpass(o values) {
}
defer file.Close()
scanner := bufio.NewScanner(io.Reader(file))
hostname := o.Get("host")
hostname := o["host"]
ntw, _ := network(o)
port := o.Get("port")
db := o.Get("dbname")
username := o.Get("user")
port := o["port"]
db := o["dbname"]
username := o["user"]
// From: https://github.com/tg/pgpass/blob/master/reader.go
getFields := func(s string) []string {
fs := make([]string, 0, 5)
@ -230,10 +229,10 @@ func (c *conn) handlePgpass(o values) {
}
}
func (c *conn) writeBuf(b byte) *writeBuf {
c.scratch[0] = b
func (cn *conn) writeBuf(b byte) *writeBuf {
cn.scratch[0] = b
return &writeBuf{
buf: c.scratch[:5],
buf: cn.scratch[:5],
pos: 1,
}
}
@ -256,13 +255,13 @@ func DialOpen(d Dialer, name string) (_ driver.Conn, err error) {
// * Very low precedence defaults applied in every situation
// * Environment variables
// * Explicitly passed connection information
o.Set("host", "localhost")
o.Set("port", "5432")
o["host"] = "localhost"
o["port"] = "5432"
// N.B.: Extra float digits should be set to 3, but that breaks
// Postgres 8.4 and older, where the max is 2.
o.Set("extra_float_digits", "2")
o["extra_float_digits"] = "2"
for k, v := range parseEnviron(os.Environ()) {
o.Set(k, v)
o[k] = v
}
if strings.HasPrefix(name, "postgres://") || strings.HasPrefix(name, "postgresql://") {
@ -277,9 +276,9 @@ func DialOpen(d Dialer, name string) (_ driver.Conn, err error) {
}
// Use the "fallback" application name if necessary
if fallback := o.Get("fallback_application_name"); fallback != "" {
if !o.Isset("application_name") {
o.Set("application_name", fallback)
if fallback, ok := o["fallback_application_name"]; ok {
if _, ok := o["application_name"]; !ok {
o["application_name"] = fallback
}
}
@ -290,30 +289,29 @@ func DialOpen(d Dialer, name string) (_ driver.Conn, err error) {
// parsing its value is not worth it. Instead, we always explicitly send
// client_encoding as a separate run-time parameter, which should override
// anything set in options.
if enc := o.Get("client_encoding"); enc != "" && !isUTF8(enc) {
if enc, ok := o["client_encoding"]; ok && !isUTF8(enc) {
return nil, errors.New("client_encoding must be absent or 'UTF8'")
}
o.Set("client_encoding", "UTF8")
o["client_encoding"] = "UTF8"
// DateStyle needs a similar treatment.
if datestyle := o.Get("datestyle"); datestyle != "" {
if datestyle, ok := o["datestyle"]; ok {
if datestyle != "ISO, MDY" {
panic(fmt.Sprintf("setting datestyle must be absent or %v; got %v",
"ISO, MDY", datestyle))
}
} else {
o.Set("datestyle", "ISO, MDY")
o["datestyle"] = "ISO, MDY"
}
// If a user is not provided by any other means, the last
// resort is to use the current operating system provided user
// name.
if o.Get("user") == "" {
if _, ok := o["user"]; !ok {
u, err := userCurrent()
if err != nil {
return nil, err
} else {
o.Set("user", u)
}
o["user"] = u
}
cn := &conn{
@ -335,7 +333,7 @@ func DialOpen(d Dialer, name string) (_ driver.Conn, err error) {
cn.startup(o)
// reset the deadline, in case one was set (see dial)
if timeout := o.Get("connect_timeout"); timeout != "" && timeout != "0" {
if timeout, ok := o["connect_timeout"]; ok && timeout != "0" {
err = cn.c.SetDeadline(time.Time{})
}
return cn, err
@ -349,7 +347,7 @@ func dial(d Dialer, o values) (net.Conn, error) {
}
// Zero or not specified means wait indefinitely.
if timeout := o.Get("connect_timeout"); timeout != "" && timeout != "0" {
if timeout, ok := o["connect_timeout"]; ok && timeout != "0" {
seconds, err := strconv.ParseInt(timeout, 10, 0)
if err != nil {
return nil, fmt.Errorf("invalid value for parameter connect_timeout: %s", err)
@ -371,31 +369,18 @@ func dial(d Dialer, o values) (net.Conn, error) {
}
func network(o values) (string, string) {
host := o.Get("host")
host := o["host"]
if strings.HasPrefix(host, "/") {
sockPath := path.Join(host, ".s.PGSQL."+o.Get("port"))
sockPath := path.Join(host, ".s.PGSQL."+o["port"])
return "unix", sockPath
}
return "tcp", net.JoinHostPort(host, o.Get("port"))
return "tcp", net.JoinHostPort(host, o["port"])
}
type values map[string]string
func (vs values) Set(k, v string) {
vs[k] = v
}
func (vs values) Get(k string) (v string) {
return vs[k]
}
func (vs values) Isset(k string) bool {
_, ok := vs[k]
return ok
}
// scanner implements a tokenizer for libpq-style option strings.
type scanner struct {
s []rune
@ -466,7 +451,7 @@ func parseOpts(name string, o values) error {
// Skip any whitespace after the =
if r, ok = s.SkipSpaces(); !ok {
// If we reach the end here, the last value is just an empty string as per libpq.
o.Set(string(keyRunes), "")
o[string(keyRunes)] = ""
break
}
@ -501,7 +486,7 @@ func parseOpts(name string, o values) error {
}
}
o.Set(string(keyRunes), string(valRunes))
o[string(keyRunes)] = string(valRunes)
}
return nil
@ -520,13 +505,17 @@ func (cn *conn) checkIsInTransaction(intxn bool) {
}
func (cn *conn) Begin() (_ driver.Tx, err error) {
return cn.begin("")
}
func (cn *conn) begin(mode string) (_ driver.Tx, err error) {
if cn.bad {
return nil, driver.ErrBadConn
}
defer cn.errRecover(&err)
cn.checkIsInTransaction(false)
_, commandTag, err := cn.simpleExec("BEGIN")
_, commandTag, err := cn.simpleExec("BEGIN" + mode)
if err != nil {
return nil, err
}
@ -542,9 +531,8 @@ func (cn *conn) Begin() (_ driver.Tx, err error) {
}
func (cn *conn) closeTxn() {
if cn.txnClosed != nil {
close(cn.txnClosed)
cn.txnClosed = nil
if finish := cn.txnFinish; finish != nil {
finish()
}
}
@ -665,6 +653,12 @@ func (cn *conn) simpleQuery(q string) (res *rows, err error) {
cn: cn,
}
}
// Set the result and tag to the last command complete if there wasn't a
// query already run. Although queries usually return from here and cede
// control to Next, a query with zero results does not.
if t == 'C' && res.colNames == nil {
res.result, res.tag = cn.parseComplete(r.string())
}
res.done = true
case 'Z':
cn.processReadyForQuery(r)
@ -703,7 +697,7 @@ var emptyRows noRows
var _ driver.Result = noRows{}
func (noRows) LastInsertId() (int64, error) {
return 0, errNoLastInsertId
return 0, errNoLastInsertID
}
func (noRows) RowsAffected() (int64, error) {
@ -712,7 +706,7 @@ func (noRows) RowsAffected() (int64, error) {
// Decides which column formats to use for a prepared statement. The input is
// an array of type oids, one element per result column.
func decideColumnFormats(colTyps []oid.Oid, forceText bool) (colFmts []format, colFmtData []byte) {
func decideColumnFormats(colTyps []fieldDesc, forceText bool) (colFmts []format, colFmtData []byte) {
if len(colTyps) == 0 {
return nil, colFmtDataAllText
}
@ -724,8 +718,8 @@ func decideColumnFormats(colTyps []oid.Oid, forceText bool) (colFmts []format, c
allBinary := true
allText := true
for i, o := range colTyps {
switch o {
for i, t := range colTyps {
switch t.OID {
// This is the list of types to use binary mode for when receiving them
// through a prepared statement. If a type appears in this list, it
// must also be implemented in binaryDecode in encode.go.
@ -845,16 +839,15 @@ func (cn *conn) query(query string, args []driver.Value) (_ *rows, err error) {
rows.colNames, rows.colFmts, rows.colTyps = cn.readPortalDescribeResponse()
cn.postExecuteWorkaround()
return rows, nil
} else {
st := cn.prepareTo(query, "")
st.exec(args)
return &rows{
cn: cn,
colNames: st.colNames,
colTyps: st.colTyps,
colFmts: st.colFmts,
}, nil
}
st := cn.prepareTo(query, "")
st.exec(args)
return &rows{
cn: cn,
colNames: st.colNames,
colTyps: st.colTyps,
colFmts: st.colFmts,
}, nil
}
// Implement the optional "Execer" interface for one-shot queries
@ -881,17 +874,16 @@ func (cn *conn) Exec(query string, args []driver.Value) (res driver.Result, err
cn.postExecuteWorkaround()
res, _, err = cn.readExecuteResponse("Execute")
return res, err
} else {
// Use the unnamed statement to defer planning until bind
// time, or else value-based selectivity estimates cannot be
// used.
st := cn.prepareTo(query, "")
r, err := st.Exec(args)
if err != nil {
panic(err)
}
return r, err
}
// Use the unnamed statement to defer planning until bind
// time, or else value-based selectivity estimates cannot be
// used.
st := cn.prepareTo(query, "")
r, err := st.Exec(args)
if err != nil {
panic(err)
}
return r, err
}
func (cn *conn) send(m *writeBuf) {
@ -901,16 +893,9 @@ func (cn *conn) send(m *writeBuf) {
}
}
func (cn *conn) sendStartupPacket(m *writeBuf) {
// sanity check
if m.buf[0] != 0 {
panic("oops")
}
func (cn *conn) sendStartupPacket(m *writeBuf) error {
_, err := cn.c.Write((m.wrap())[1:])
if err != nil {
panic(err)
}
return err
}
// Send a message of type typ to the server on the other end of cn. The
@ -1032,7 +1017,9 @@ func (cn *conn) ssl(o values) {
w := cn.writeBuf(0)
w.int32(80877103)
cn.sendStartupPacket(w)
if err := cn.sendStartupPacket(w); err != nil {
panic(err)
}
b := cn.scratch[:1]
_, err := io.ReadFull(cn.c, b)
@ -1093,7 +1080,9 @@ func (cn *conn) startup(o values) {
w.string(v)
}
w.string("")
cn.sendStartupPacket(w)
if err := cn.sendStartupPacket(w); err != nil {
panic(err)
}
for {
t, r := cn.recv()
@ -1119,7 +1108,7 @@ func (cn *conn) auth(r *readBuf, o values) {
// OK
case 3:
w := cn.writeBuf('p')
w.string(o.Get("password"))
w.string(o["password"])
cn.send(w)
t, r := cn.recv()
@ -1133,7 +1122,7 @@ func (cn *conn) auth(r *readBuf, o values) {
case 5:
s := string(r.next(4))
w := cn.writeBuf('p')
w.string("md5" + md5s(md5s(o.Get("password")+o.Get("user"))+s))
w.string("md5" + md5s(md5s(o["password"]+o["user"])+s))
cn.send(w)
t, r := cn.recv()
@ -1155,10 +1144,10 @@ const formatText format = 0
const formatBinary format = 1
// One result-column format code with the value 1 (i.e. all binary).
var colFmtDataAllBinary []byte = []byte{0, 1, 0, 1}
var colFmtDataAllBinary = []byte{0, 1, 0, 1}
// No result-column format codes (i.e. all text).
var colFmtDataAllText []byte = []byte{0, 0}
var colFmtDataAllText = []byte{0, 0}
type stmt struct {
cn *conn
@ -1166,7 +1155,7 @@ type stmt struct {
colNames []string
colFmts []format
colFmtData []byte
colTyps []oid.Oid
colTyps []fieldDesc
paramTyps []oid.Oid
closed bool
}
@ -1327,17 +1316,19 @@ func (cn *conn) parseComplete(commandTag string) (driver.Result, string) {
type rows struct {
cn *conn
closed chan<- struct{}
finish func()
colNames []string
colTyps []oid.Oid
colTyps []fieldDesc
colFmts []format
done bool
rb readBuf
result driver.Result
tag string
}
func (rs *rows) Close() error {
if rs.closed != nil {
defer close(rs.closed)
if finish := rs.finish; finish != nil {
defer finish()
}
// no need to look at cn.bad as Next() will
for {
@ -1345,7 +1336,12 @@ func (rs *rows) Close() error {
switch err {
case nil:
case io.EOF:
return nil
// rs.Next can return io.EOF on both 'Z' (ready for query) and 'T' (row
// description, used with HasNextResultSet). We need to fetch messages until
// we hit a 'Z', which is done by waiting for done to be set.
if rs.done {
return nil
}
default:
return err
}
@ -1356,6 +1352,17 @@ func (rs *rows) Columns() []string {
return rs.colNames
}
func (rs *rows) Result() driver.Result {
if rs.result == nil {
return emptyRows
}
return rs.result
}
func (rs *rows) Tag() string {
return rs.tag
}
func (rs *rows) Next(dest []driver.Value) (err error) {
if rs.done {
return io.EOF
@ -1373,6 +1380,9 @@ func (rs *rows) Next(dest []driver.Value) (err error) {
case 'E':
err = parseError(&rs.rb)
case 'C', 'I':
if t == 'C' {
rs.result, rs.tag = conn.parseComplete(rs.rb.string())
}
continue
case 'Z':
conn.processReadyForQuery(&rs.rb)
@ -1396,7 +1406,7 @@ func (rs *rows) Next(dest []driver.Value) (err error) {
dest[i] = nil
continue
}
dest[i] = decode(&conn.parameterStatus, rs.rb.next(l), rs.colTyps[i], rs.colFmts[i])
dest[i] = decode(&conn.parameterStatus, rs.rb.next(l), rs.colTyps[i].OID, rs.colFmts[i])
}
return
case 'T':
@ -1502,7 +1512,7 @@ func (cn *conn) sendBinaryModeQuery(query string, args []driver.Value) {
cn.send(b)
}
func (c *conn) processParameterStatus(r *readBuf) {
func (cn *conn) processParameterStatus(r *readBuf) {
var err error
param := r.string()
@ -1513,13 +1523,13 @@ func (c *conn) processParameterStatus(r *readBuf) {
var minor int
_, err = fmt.Sscanf(r.string(), "%d.%d.%d", &major1, &major2, &minor)
if err == nil {
c.parameterStatus.serverVersion = major1*10000 + major2*100 + minor
cn.parameterStatus.serverVersion = major1*10000 + major2*100 + minor
}
case "TimeZone":
c.parameterStatus.currentLocation, err = time.LoadLocation(r.string())
cn.parameterStatus.currentLocation, err = time.LoadLocation(r.string())
if err != nil {
c.parameterStatus.currentLocation = nil
cn.parameterStatus.currentLocation = nil
}
default:
@ -1527,8 +1537,8 @@ func (c *conn) processParameterStatus(r *readBuf) {
}
}
func (c *conn) processReadyForQuery(r *readBuf) {
c.txnStatus = transactionStatus(r.byte())
func (cn *conn) processReadyForQuery(r *readBuf) {
cn.txnStatus = transactionStatus(r.byte())
}
func (cn *conn) readReadyForQuery() {
@ -1543,9 +1553,9 @@ func (cn *conn) readReadyForQuery() {
}
}
func (c *conn) processBackendKeyData(r *readBuf) {
c.processID = r.int32()
c.secretKey = r.int32()
func (cn *conn) processBackendKeyData(r *readBuf) {
cn.processID = r.int32()
cn.secretKey = r.int32()
}
func (cn *conn) readParseResponse() {
@ -1563,7 +1573,7 @@ func (cn *conn) readParseResponse() {
}
}
func (cn *conn) readStatementDescribeResponse() (paramTyps []oid.Oid, colNames []string, colTyps []oid.Oid) {
func (cn *conn) readStatementDescribeResponse() (paramTyps []oid.Oid, colNames []string, colTyps []fieldDesc) {
for {
t, r := cn.recv1()
switch t {
@ -1589,7 +1599,7 @@ func (cn *conn) readStatementDescribeResponse() (paramTyps []oid.Oid, colNames [
}
}
func (cn *conn) readPortalDescribeResponse() (colNames []string, colFmts []format, colTyps []oid.Oid) {
func (cn *conn) readPortalDescribeResponse() (colNames []string, colFmts []format, colTyps []fieldDesc) {
t, r := cn.recv1()
switch t {
case 'T':
@ -1685,31 +1695,33 @@ func (cn *conn) readExecuteResponse(protocolState string) (res driver.Result, co
}
}
func parseStatementRowDescribe(r *readBuf) (colNames []string, colTyps []oid.Oid) {
func parseStatementRowDescribe(r *readBuf) (colNames []string, colTyps []fieldDesc) {
n := r.int16()
colNames = make([]string, n)
colTyps = make([]oid.Oid, n)
colTyps = make([]fieldDesc, n)
for i := range colNames {
colNames[i] = r.string()
r.next(6)
colTyps[i] = r.oid()
r.next(6)
colTyps[i].OID = r.oid()
colTyps[i].Len = r.int16()
colTyps[i].Mod = r.int32()
// format code not known when describing a statement; always 0
r.next(2)
}
return
}
func parsePortalRowDescribe(r *readBuf) (colNames []string, colFmts []format, colTyps []oid.Oid) {
func parsePortalRowDescribe(r *readBuf) (colNames []string, colFmts []format, colTyps []fieldDesc) {
n := r.int16()
colNames = make([]string, n)
colFmts = make([]format, n)
colTyps = make([]oid.Oid, n)
colTyps = make([]fieldDesc, n)
for i := range colNames {
colNames[i] = r.string()
r.next(6)
colTyps[i] = r.oid()
r.next(6)
colTyps[i].OID = r.oid()
colTyps[i].Len = r.int16()
colTyps[i].Mod = r.int32()
colFmts[i] = format(r.int16())
}
return

124
vendor/src/github.com/lib/pq/conn_go18.go vendored
View file

@ -4,8 +4,11 @@ package pq
import (
"context"
"database/sql"
"database/sql/driver"
"errors"
"fmt"
"io"
"io/ioutil"
)
// Implement the "QueryerContext" interface
@ -14,15 +17,15 @@ func (cn *conn) QueryContext(ctx context.Context, query string, args []driver.Na
for i, nv := range args {
list[i] = nv.Value
}
var closed chan<- struct{}
if ctx.Done() != nil {
closed = watchCancel(ctx, cn.cancel)
}
finish := cn.watchCancel(ctx)
r, err := cn.query(query, list)
if err != nil {
if finish != nil {
finish()
}
return nil, err
}
r.closed = closed
r.finish = finish
return r, nil
}
@ -33,9 +36,8 @@ func (cn *conn) ExecContext(ctx context.Context, query string, args []driver.Nam
list[i] = nv.Value
}
if ctx.Done() != nil {
closed := watchCancel(ctx, cn.cancel)
defer close(closed)
if finish := cn.watchCancel(ctx); finish != nil {
defer finish()
}
return cn.Exec(query, list)
@ -43,50 +45,84 @@ func (cn *conn) ExecContext(ctx context.Context, query string, args []driver.Nam
// Implement the "ConnBeginTx" interface
func (cn *conn) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, error) {
if opts.Isolation != 0 {
return nil, errors.New("isolation levels not supported")
var mode string
switch sql.IsolationLevel(opts.Isolation) {
case sql.LevelDefault:
// Don't touch mode: use the server's default
case sql.LevelReadUncommitted:
mode = " ISOLATION LEVEL READ UNCOMMITTED"
case sql.LevelReadCommitted:
mode = " ISOLATION LEVEL READ COMMITTED"
case sql.LevelRepeatableRead:
mode = " ISOLATION LEVEL REPEATABLE READ"
case sql.LevelSerializable:
mode = " ISOLATION LEVEL SERIALIZABLE"
default:
return nil, fmt.Errorf("pq: isolation level not supported: %d", opts.Isolation)
}
if opts.ReadOnly {
return nil, errors.New("read-only transactions not supported")
mode += " READ ONLY"
} else {
mode += " READ WRITE"
}
tx, err := cn.Begin()
tx, err := cn.begin(mode)
if err != nil {
return nil, err
}
if ctx.Done() != nil {
cn.txnClosed = watchCancel(ctx, cn.cancel)
}
cn.txnFinish = cn.watchCancel(ctx)
return tx, nil
}
func watchCancel(ctx context.Context, cancel func()) chan<- struct{} {
closed := make(chan struct{})
go func() {
select {
case <-ctx.Done():
cancel()
case <-closed:
func (cn *conn) watchCancel(ctx context.Context) func() {
if done := ctx.Done(); done != nil {
finished := make(chan struct{})
go func() {
select {
case <-done:
_ = cn.cancel()
finished <- struct{}{}
case <-finished:
}
}()
return func() {
select {
case <-finished:
case finished <- struct{}{}:
}
}
}()
return closed
}
func (cn *conn) cancel() {
var err error
can := &conn{}
can.c, err = dial(cn.dialer, cn.opts)
if err != nil {
return
}
can.ssl(cn.opts)
defer can.errRecover(&err)
w := can.writeBuf(0)
w.int32(80877102) // cancel request code
w.int32(cn.processID)
w.int32(cn.secretKey)
can.sendStartupPacket(w)
_ = can.c.Close()
return nil
}
func (cn *conn) cancel() error {
c, err := dial(cn.dialer, cn.opts)
if err != nil {
return err
}
defer c.Close()
{
can := conn{
c: c,
}
can.ssl(cn.opts)
w := can.writeBuf(0)
w.int32(80877102) // cancel request code
w.int32(cn.processID)
w.int32(cn.secretKey)
if err := can.sendStartupPacket(w); err != nil {
return err
}
}
// Read until EOF to ensure that the server received the cancel.
{
_, err := io.Copy(ioutil.Discard, c)
return err
}
}

167
vendor/src/github.com/lib/pq/conn_test.go vendored
View file

@ -136,7 +136,7 @@ func TestOpenURL(t *testing.T) {
testURL("postgresql://")
}
const pgpass_file = "/tmp/pqgotest_pgpass"
const pgpassFile = "/tmp/pqgotest_pgpass"
func TestPgpass(t *testing.T) {
if os.Getenv("TRAVIS") != "true" {
@ -160,11 +160,11 @@ func TestPgpass(t *testing.T) {
rows, err := txn.Query("SELECT USER")
if err != nil {
txn.Rollback()
rows.Close()
if expected != "fail" {
t.Fatalf(reason, err)
}
} else {
rows.Close()
if expected != "ok" {
t.Fatalf(reason, err)
}
@ -172,10 +172,10 @@ func TestPgpass(t *testing.T) {
txn.Rollback()
}
testAssert("", "ok", "missing .pgpass, unexpected error %#v")
os.Setenv("PGPASSFILE", pgpass_file)
os.Setenv("PGPASSFILE", pgpassFile)
testAssert("host=/tmp", "fail", ", unexpected error %#v")
os.Remove(pgpass_file)
pgpass, err := os.OpenFile(pgpass_file, os.O_RDWR|os.O_CREATE, 0644)
os.Remove(pgpassFile)
pgpass, err := os.OpenFile(pgpassFile, os.O_RDWR|os.O_CREATE, 0644)
if err != nil {
t.Fatalf("Unexpected error writing pgpass file %#v", err)
}
@ -191,7 +191,7 @@ localhost:*:*:*:pass_C
pgpass.Close()
assertPassword := func(extra values, expected string) {
o := &values{
o := values{
"host": "localhost",
"sslmode": "disable",
"connect_timeout": "20",
@ -203,17 +203,17 @@ localhost:*:*:*:pass_C
"datestyle": "ISO, MDY",
}
for k, v := range extra {
(*o)[k] = v
o[k] = v
}
(&conn{}).handlePgpass(*o)
if o.Get("password") != expected {
t.Fatalf("For %v expected %s got %s", extra, expected, o.Get("password"))
(&conn{}).handlePgpass(o)
if pw := o["password"]; pw != expected {
t.Fatalf("For %v expected %s got %s", extra, expected, pw)
}
}
// wrong permissions for the pgpass file means it should be ignored
assertPassword(values{"host": "example.com", "user": "foo"}, "")
// fix the permissions and check if it has taken effect
os.Chmod(pgpass_file, 0600)
os.Chmod(pgpassFile, 0600)
assertPassword(values{"host": "server", "dbname": "some_db", "user": "some_user"}, "pass_A")
assertPassword(values{"host": "example.com", "user": "foo"}, "pass_fallback")
assertPassword(values{"host": "example.com", "dbname": "some_db", "user": "some_user"}, "pass_B")
@ -221,7 +221,7 @@ localhost:*:*:*:pass_C
assertPassword(values{"host": "", "user": "some_user"}, "pass_C")
assertPassword(values{"host": "/tmp", "user": "some_user"}, "pass_C")
// cleanup
os.Remove(pgpass_file)
os.Remove(pgpassFile)
os.Setenv("PGPASSFILE", "")
}
@ -393,8 +393,8 @@ func TestEmptyQuery(t *testing.T) {
if _, err := res.RowsAffected(); err != errNoRowsAffected {
t.Fatalf("expected %s, got %v", errNoRowsAffected, err)
}
if _, err := res.LastInsertId(); err != errNoLastInsertId {
t.Fatalf("expected %s, got %v", errNoLastInsertId, err)
if _, err := res.LastInsertId(); err != errNoLastInsertID {
t.Fatalf("expected %s, got %v", errNoLastInsertID, err)
}
rows, err := db.Query("")
if err != nil {
@ -425,8 +425,8 @@ func TestEmptyQuery(t *testing.T) {
if _, err := res.RowsAffected(); err != errNoRowsAffected {
t.Fatalf("expected %s, got %v", errNoRowsAffected, err)
}
if _, err := res.LastInsertId(); err != errNoLastInsertId {
t.Fatalf("expected %s, got %v", errNoLastInsertId, err)
if _, err := res.LastInsertId(); err != errNoLastInsertID {
t.Fatalf("expected %s, got %v", errNoLastInsertID, err)
}
rows, err = stmt.Query()
if err != nil {
@ -686,17 +686,28 @@ func TestCloseBadConn(t *testing.T) {
if err := cn.Close(); err != nil {
t.Fatal(err)
}
// During the Go 1.9 cycle, https://github.com/golang/go/commit/3792db5
// changed this error from
//
// net.errClosing = errors.New("use of closed network connection")
//
// to
//
// internal/poll.ErrClosing = errors.New("use of closed file or network connection")
const errClosing = "use of closed"
// Verify write after closing fails.
if _, err := nc.Write(nil); err == nil {
t.Fatal("expected error")
} else if !strings.Contains(err.Error(), "use of closed network connection") {
t.Fatalf("expected use of closed network connection error, got %s", err)
} else if !strings.Contains(err.Error(), errClosing) {
t.Fatalf("expected %s error, got %s", errClosing, err)
}
// Verify second close fails.
if err := cn.Close(); err == nil {
t.Fatal("expected error")
} else if !strings.Contains(err.Error(), "use of closed network connection") {
t.Fatalf("expected use of closed network connection error, got %s", err)
} else if !strings.Contains(err.Error(), errClosing) {
t.Fatalf("expected %s error, got %s", errClosing, err)
}
}
@ -1042,16 +1053,16 @@ func TestIssue282(t *testing.T) {
db := openTestConn(t)
defer db.Close()
var search_path string
var searchPath string
err := db.QueryRow(`
SET LOCAL search_path TO pg_catalog;
SET LOCAL search_path TO pg_catalog;
SHOW search_path`).Scan(&search_path)
SHOW search_path`).Scan(&searchPath)
if err != nil {
t.Fatal(err)
}
if search_path != "pg_catalog" {
t.Fatalf("unexpected search_path %s", search_path)
if searchPath != "pg_catalog" {
t.Fatalf("unexpected search_path %s", searchPath)
}
}
@ -1493,3 +1504,111 @@ func TestQuoteIdentifier(t *testing.T) {
}
}
}
func TestRowsResultTag(t *testing.T) {
type ResultTag interface {
Result() driver.Result
Tag() string
}
tests := []struct {
query string
tag string
ra int64
}{
{
query: "CREATE TEMP TABLE temp (a int)",
tag: "CREATE TABLE",
},
{
query: "INSERT INTO temp VALUES (1), (2)",
tag: "INSERT",
ra: 2,
},
{
query: "SELECT 1",
},
// A SELECT anywhere should take precedent.
{
query: "SELECT 1; INSERT INTO temp VALUES (1), (2)",
},
{
query: "INSERT INTO temp VALUES (1), (2); SELECT 1",
},
// Multiple statements that don't return rows should return the last tag.
{
query: "CREATE TEMP TABLE t (a int); DROP TABLE t",
tag: "DROP TABLE",
},
// Ensure a rows-returning query in any position among various tags-returing
// statements will prefer the rows.
{
query: "SELECT 1; CREATE TEMP TABLE t (a int); DROP TABLE t",
},
{
query: "CREATE TEMP TABLE t (a int); SELECT 1; DROP TABLE t",
},
{
query: "CREATE TEMP TABLE t (a int); DROP TABLE t; SELECT 1",
},
// Verify that an no-results query doesn't set the tag.
{
query: "CREATE TEMP TABLE t (a int); SELECT 1 WHERE FALSE; DROP TABLE t;",
},
}
// If this is the only test run, this will correct the connection string.
openTestConn(t).Close()
conn, err := Open("")
if err != nil {
t.Fatal(err)
}
defer conn.Close()
q := conn.(driver.Queryer)
for _, test := range tests {
if rows, err := q.Query(test.query, nil); err != nil {
t.Fatalf("%s: %s", test.query, err)
} else {
r := rows.(ResultTag)
if tag := r.Tag(); tag != test.tag {
t.Fatalf("%s: unexpected tag %q", test.query, tag)
}
res := r.Result()
if ra, _ := res.RowsAffected(); ra != test.ra {
t.Fatalf("%s: unexpected rows affected: %d", test.query, ra)
}
rows.Close()
}
}
}
// TestQuickClose tests that closing a query early allows a subsequent query to work.
func TestQuickClose(t *testing.T) {
db := openTestConn(t)
defer db.Close()
tx, err := db.Begin()
if err != nil {
t.Fatal(err)
}
rows, err := tx.Query("SELECT 1; SELECT 2;")
if err != nil {
t.Fatal(err)
}
if err := rows.Close(); err != nil {
t.Fatal(err)
}
var id int
if err := tx.QueryRow("SELECT 3").Scan(&id); err != nil {
t.Fatal(err)
}
if id != 3 {
t.Fatalf("unexpected %d", id)
}
if err := tx.Commit(); err != nil {
t.Fatal(err)
}
}

6
vendor/src/github.com/lib/pq/encode_test.go vendored
View file

@ -370,17 +370,17 @@ func TestInfinityTimestamp(t *testing.T) {
t.Errorf("Scanning -infinity, expected time %q, got %q", y1500, resultT.String())
}
y_1500 := time.Date(-1500, time.January, 1, 0, 0, 0, 0, time.UTC)
ym1500 := time.Date(-1500, time.January, 1, 0, 0, 0, 0, time.UTC)
y11500 := time.Date(11500, time.January, 1, 0, 0, 0, 0, time.UTC)
var s string
err = db.QueryRow("SELECT $1::timestamp::text", y_1500).Scan(&s)
err = db.QueryRow("SELECT $1::timestamp::text", ym1500).Scan(&s)
if err != nil {
t.Errorf("Encoding -infinity, expected no error, got %q", err)
}
if s != "-infinity" {
t.Errorf("Encoding -infinity, expected %q, got %q", "-infinity", s)
}
err = db.QueryRow("SELECT $1::timestamptz::text", y_1500).Scan(&s)
err = db.QueryRow("SELECT $1::timestamptz::text", ym1500).Scan(&s)
if err != nil {
t.Errorf("Encoding -infinity, expected no error, got %q", err)
}

178
vendor/src/github.com/lib/pq/go18_test.go vendored
View file

@ -5,6 +5,8 @@ package pq
import (
"context"
"database/sql"
"runtime"
"strings"
"testing"
"time"
)
@ -72,6 +74,8 @@ func TestMultipleSimpleQuery(t *testing.T) {
}
}
const contextRaceIterations = 100
func TestContextCancelExec(t *testing.T) {
db := openTestConn(t)
defer db.Close()
@ -79,10 +83,7 @@ func TestContextCancelExec(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
// Delay execution for just a bit until db.ExecContext has begun.
go func() {
time.Sleep(time.Millisecond * 10)
cancel()
}()
defer time.AfterFunc(time.Millisecond*10, cancel).Stop()
// Not canceled until after the exec has started.
if _, err := db.ExecContext(ctx, "select pg_sleep(1)"); err == nil {
@ -97,6 +98,20 @@ func TestContextCancelExec(t *testing.T) {
} else if err.Error() != "context canceled" {
t.Fatalf("unexpected error: %s", err)
}
for i := 0; i < contextRaceIterations; i++ {
func() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
if _, err := db.ExecContext(ctx, "select 1"); err != nil {
t.Fatal(err)
}
}()
if _, err := db.Exec("select 1"); err != nil {
t.Fatal(err)
}
}
}
func TestContextCancelQuery(t *testing.T) {
@ -106,10 +121,7 @@ func TestContextCancelQuery(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
// Delay execution for just a bit until db.QueryContext has begun.
go func() {
time.Sleep(time.Millisecond * 10)
cancel()
}()
defer time.AfterFunc(time.Millisecond*10, cancel).Stop()
// Not canceled until after the exec has started.
if _, err := db.QueryContext(ctx, "select pg_sleep(1)"); err == nil {
@ -124,6 +136,55 @@ func TestContextCancelQuery(t *testing.T) {
} else if err.Error() != "context canceled" {
t.Fatalf("unexpected error: %s", err)
}
for i := 0; i < contextRaceIterations; i++ {
func() {
ctx, cancel := context.WithCancel(context.Background())
rows, err := db.QueryContext(ctx, "select 1")
cancel()
if err != nil {
t.Fatal(err)
} else if err := rows.Close(); err != nil {
t.Fatal(err)
}
}()
if rows, err := db.Query("select 1"); err != nil {
t.Fatal(err)
} else if err := rows.Close(); err != nil {
t.Fatal(err)
}
}
}
// TestIssue617 tests that a failed query in QueryContext doesn't lead to a
// goroutine leak.
func TestIssue617(t *testing.T) {
db := openTestConn(t)
defer db.Close()
const N = 10
numGoroutineStart := runtime.NumGoroutine()
for i := 0; i < N; i++ {
func() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
_, err := db.QueryContext(ctx, `SELECT * FROM DOESNOTEXIST`)
pqErr, _ := err.(*Error)
// Expecting "pq: relation \"doesnotexist\" does not exist" error.
if err == nil || pqErr == nil || pqErr.Code != "42P01" {
t.Fatalf("expected undefined table error, got %v", err)
}
}()
}
numGoroutineFinish := runtime.NumGoroutine()
// We use N/2 and not N because the GC and other actors may increase or
// decrease the number of goroutines.
if numGoroutineFinish-numGoroutineStart >= N/2 {
t.Errorf("goroutine leak detected, was %d, now %d", numGoroutineStart, numGoroutineFinish)
}
}
func TestContextCancelBegin(t *testing.T) {
@ -137,10 +198,7 @@ func TestContextCancelBegin(t *testing.T) {
}
// Delay execution for just a bit until tx.Exec has begun.
go func() {
time.Sleep(time.Millisecond * 10)
cancel()
}()
defer time.AfterFunc(time.Millisecond*10, cancel).Stop()
// Not canceled until after the exec has started.
if _, err := tx.Exec("select pg_sleep(1)"); err == nil {
@ -162,4 +220,100 @@ func TestContextCancelBegin(t *testing.T) {
} else if err.Error() != "context canceled" {
t.Fatalf("unexpected error: %s", err)
}
for i := 0; i < contextRaceIterations; i++ {
func() {
ctx, cancel := context.WithCancel(context.Background())
tx, err := db.BeginTx(ctx, nil)
cancel()
if err != nil {
t.Fatal(err)
} else if err := tx.Rollback(); err != nil && err != sql.ErrTxDone {
t.Fatal(err)
}
}()
if tx, err := db.Begin(); err != nil {
t.Fatal(err)
} else if err := tx.Rollback(); err != nil {
t.Fatal(err)
}
}
}
func TestTxOptions(t *testing.T) {
db := openTestConn(t)
defer db.Close()
ctx := context.Background()
tests := []struct {
level sql.IsolationLevel
isolation string
}{
{
level: sql.LevelDefault,
isolation: "",
},
{
level: sql.LevelReadUncommitted,
isolation: "read uncommitted",
},
{
level: sql.LevelReadCommitted,
isolation: "read committed",
},
{
level: sql.LevelRepeatableRead,
isolation: "repeatable read",
},
{
level: sql.LevelSerializable,
isolation: "serializable",
},
}
for _, test := range tests {
for _, ro := range []bool{true, false} {
tx, err := db.BeginTx(ctx, &sql.TxOptions{
Isolation: test.level,
ReadOnly: ro,
})
if err != nil {
t.Fatal(err)
}
var isolation string
err = tx.QueryRow("select current_setting('transaction_isolation')").Scan(&isolation)
if err != nil {
t.Fatal(err)
}
if test.isolation != "" && isolation != test.isolation {
t.Errorf("wrong isolation level: %s != %s", isolation, test.isolation)
}
var isRO string
err = tx.QueryRow("select current_setting('transaction_read_only')").Scan(&isRO)
if err != nil {
t.Fatal(err)
}
if ro != (isRO == "on") {
t.Errorf("read/[write,only] not set: %t != %s for level %s",
ro, isRO, test.isolation)
}
tx.Rollback()
}
}
_, err := db.BeginTx(ctx, &sql.TxOptions{
Isolation: sql.LevelLinearizable,
})
if err == nil {
t.Fatal("expected LevelLinearizable to fail")
}
if !strings.Contains(err.Error(), "isolation level not supported") {
t.Errorf("Expected error to mention isolation level, got %q", err)
}
}

24
vendor/src/github.com/lib/pq/listen_example/doc.go vendored
View file

@ -51,21 +51,15 @@ mechanism to avoid polling the database while waiting for more work to arrive.
}
func waitForNotification(l *pq.Listener) {
for {
select {
case <-l.Notify:
fmt.Println("received notification, new work available")
return
case <-time.After(90 * time.Second):
go func() {
l.Ping()
}()
// Check if there's more work available, just in case it takes
// a while for the Listener to notice connection loss and
// reconnect.
fmt.Println("received no work for 90 seconds, checking for new work")
return
}
select {
case <-l.Notify:
fmt.Println("received notification, new work available")
case <-time.After(90 * time.Second):
go l.Ping()
// Check if there's more work available, just in case it takes
// a while for the Listener to notice connection loss and
// reconnect.
fmt.Println("received no work for 90 seconds, checking for new work")
}
}

24
vendor/src/github.com/lib/pq/notify_test.go vendored
View file

@ -7,7 +7,6 @@ import (
"os"
"runtime"
"sync"
"sync/atomic"
"testing"
"time"
)
@ -235,15 +234,10 @@ func TestConnExecDeadlock(t *testing.T) {
// calls Close on the net.Conn; equivalent to a network failure
l.Close()
var done int32 = 0
go func() {
time.Sleep(10 * time.Second)
if atomic.LoadInt32(&done) != 1 {
panic("timed out")
}
}()
defer time.AfterFunc(10*time.Second, func() {
panic("timed out")
}).Stop()
wg.Wait()
atomic.StoreInt32(&done, 1)
}
// Test for ListenerConn being closed while a slow query is executing
@ -271,15 +265,11 @@ func TestListenerConnCloseWhileQueryIsExecuting(t *testing.T) {
if err != nil {
t.Fatal(err)
}
var done int32 = 0
go func() {
time.Sleep(10 * time.Second)
if atomic.LoadInt32(&done) != 1 {
panic("timed out")
}
}()
defer time.AfterFunc(10*time.Second, func() {
panic("timed out")
}).Stop()
wg.Wait()
atomic.StoreInt32(&done, 1)
}
func TestNotifyExtra(t *testing.T) {

59
vendor/src/github.com/lib/pq/oid/gen.go vendored
View file

@ -10,10 +10,22 @@ import (
"log"
"os"
"os/exec"
"strings"
_ "github.com/lib/pq"
)
// OID represent a postgres Object Identifier Type.
type OID struct {
ID int
Type string
}
// Name returns an upper case version of the oid type.
func (o OID) Name() string {
return strings.ToUpper(o.Type)
}
func main() {
datname := os.Getenv("PGDATABASE")
sslmode := os.Getenv("PGSSLMODE")
@ -30,6 +42,25 @@ func main() {
if err != nil {
log.Fatal(err)
}
rows, err := db.Query(`
SELECT typname, oid
FROM pg_type WHERE oid < 10000
ORDER BY oid;
`)
if err != nil {
log.Fatal(err)
}
oids := make([]*OID, 0)
for rows.Next() {
var oid OID
if err = rows.Scan(&oid.Type, &oid.ID); err != nil {
log.Fatal(err)
}
oids = append(oids, &oid)
}
if err = rows.Err(); err != nil {
log.Fatal(err)
}
cmd := exec.Command("gofmt")
cmd.Stderr = os.Stderr
w, err := cmd.StdinPipe()
@ -45,30 +76,18 @@ func main() {
if err != nil {
log.Fatal(err)
}
fmt.Fprintln(w, "// generated by 'go run gen.go'; do not edit")
fmt.Fprintln(w, "// Code generated by gen.go. DO NOT EDIT.")
fmt.Fprintln(w, "\npackage oid")
fmt.Fprintln(w, "const (")
rows, err := db.Query(`
SELECT typname, oid
FROM pg_type WHERE oid < 10000
ORDER BY oid;
`)
if err != nil {
log.Fatal(err)
}
var name string
var oid int
for rows.Next() {
err = rows.Scan(&name, &oid)
if err != nil {
log.Fatal(err)
}
fmt.Fprintf(w, "T_%s Oid = %d\n", name, oid)
}
if err = rows.Err(); err != nil {
log.Fatal(err)
for _, oid := range oids {
fmt.Fprintf(w, "T_%s Oid = %d\n", oid.Type, oid.ID)
}
fmt.Fprintln(w, ")")
fmt.Fprintln(w, "var TypeName = map[Oid]string{")
for _, oid := range oids {
fmt.Fprintf(w, "T_%s: \"%s\",\n", oid.Type, oid.Name())
}
fmt.Fprintln(w, "}")
w.Close()
cmd.Wait()
}

184
vendor/src/github.com/lib/pq/oid/types.go vendored
View file

@ -1,4 +1,4 @@
// generated by 'go run gen.go'; do not edit
// Code generated by gen.go. DO NOT EDIT.
package oid
@ -18,6 +18,7 @@ const (
T_xid Oid = 28
T_cid Oid = 29
T_oidvector Oid = 30
T_pg_ddl_command Oid = 32
T_pg_type Oid = 71
T_pg_attribute Oid = 75
T_pg_proc Oid = 81
@ -28,6 +29,7 @@ const (
T_pg_node_tree Oid = 194
T__json Oid = 199
T_smgr Oid = 210
T_index_am_handler Oid = 325
T_point Oid = 600
T_lseg Oid = 601
T_path Oid = 602
@ -133,6 +135,9 @@ const (
T__uuid Oid = 2951
T_txid_snapshot Oid = 2970
T_fdw_handler Oid = 3115
T_pg_lsn Oid = 3220
T__pg_lsn Oid = 3221
T_tsm_handler Oid = 3310
T_anyenum Oid = 3500
T_tsvector Oid = 3614
T_tsquery Oid = 3615
@ -144,6 +149,8 @@ const (
T__regconfig Oid = 3735
T_regdictionary Oid = 3769
T__regdictionary Oid = 3770
T_jsonb Oid = 3802
T__jsonb Oid = 3807
T_anyrange Oid = 3831
T_event_trigger Oid = 3838
T_int4range Oid = 3904
@ -158,4 +165,179 @@ const (
T__daterange Oid = 3913
T_int8range Oid = 3926
T__int8range Oid = 3927
T_pg_shseclabel Oid = 4066
T_regnamespace Oid = 4089
T__regnamespace Oid = 4090
T_regrole Oid = 4096
T__regrole Oid = 4097
)
var TypeName = map[Oid]string{
T_bool: "BOOL",
T_bytea: "BYTEA",
T_char: "CHAR",
T_name: "NAME",
T_int8: "INT8",
T_int2: "INT2",
T_int2vector: "INT2VECTOR",
T_int4: "INT4",
T_regproc: "REGPROC",
T_text: "TEXT",
T_oid: "OID",
T_tid: "TID",
T_xid: "XID",
T_cid: "CID",
T_oidvector: "OIDVECTOR",
T_pg_ddl_command: "PG_DDL_COMMAND",
T_pg_type: "PG_TYPE",
T_pg_attribute: "PG_ATTRIBUTE",
T_pg_proc: "PG_PROC",
T_pg_class: "PG_CLASS",
T_json: "JSON",
T_xml: "XML",
T__xml: "_XML",
T_pg_node_tree: "PG_NODE_TREE",
T__json: "_JSON",
T_smgr: "SMGR",
T_index_am_handler: "INDEX_AM_HANDLER",
T_point: "POINT",
T_lseg: "LSEG",
T_path: "PATH",
T_box: "BOX",
T_polygon: "POLYGON",
T_line: "LINE",
T__line: "_LINE",
T_cidr: "CIDR",
T__cidr: "_CIDR",
T_float4: "FLOAT4",
T_float8: "FLOAT8",
T_abstime: "ABSTIME",
T_reltime: "RELTIME",
T_tinterval: "TINTERVAL",
T_unknown: "UNKNOWN",
T_circle: "CIRCLE",
T__circle: "_CIRCLE",
T_money: "MONEY",
T__money: "_MONEY",
T_macaddr: "MACADDR",
T_inet: "INET",
T__bool: "_BOOL",
T__bytea: "_BYTEA",
T__char: "_CHAR",
T__name: "_NAME",
T__int2: "_INT2",
T__int2vector: "_INT2VECTOR",
T__int4: "_INT4",
T__regproc: "_REGPROC",
T__text: "_TEXT",
T__tid: "_TID",
T__xid: "_XID",
T__cid: "_CID",
T__oidvector: "_OIDVECTOR",
T__bpchar: "_BPCHAR",
T__varchar: "_VARCHAR",
T__int8: "_INT8",
T__point: "_POINT",
T__lseg: "_LSEG",
T__path: "_PATH",
T__box: "_BOX",
T__float4: "_FLOAT4",
T__float8: "_FLOAT8",
T__abstime: "_ABSTIME",
T__reltime: "_RELTIME",
T__tinterval: "_TINTERVAL",
T__polygon: "_POLYGON",
T__oid: "_OID",
T_aclitem: "ACLITEM",
T__aclitem: "_ACLITEM",
T__macaddr: "_MACADDR",
T__inet: "_INET",
T_bpchar: "BPCHAR",
T_varchar: "VARCHAR",
T_date: "DATE",
T_time: "TIME",
T_timestamp: "TIMESTAMP",
T__timestamp: "_TIMESTAMP",
T__date: "_DATE",
T__time: "_TIME",
T_timestamptz: "TIMESTAMPTZ",
T__timestamptz: "_TIMESTAMPTZ",
T_interval: "INTERVAL",
T__interval: "_INTERVAL",
T__numeric: "_NUMERIC",
T_pg_database: "PG_DATABASE",
T__cstring: "_CSTRING",
T_timetz: "TIMETZ",
T__timetz: "_TIMETZ",
T_bit: "BIT",
T__bit: "_BIT",
T_varbit: "VARBIT",
T__varbit: "_VARBIT",
T_numeric: "NUMERIC",
T_refcursor: "REFCURSOR",
T__refcursor: "_REFCURSOR",
T_regprocedure: "REGPROCEDURE",
T_regoper: "REGOPER",
T_regoperator: "REGOPERATOR",
T_regclass: "REGCLASS",
T_regtype: "REGTYPE",
T__regprocedure: "_REGPROCEDURE",
T__regoper: "_REGOPER",
T__regoperator: "_REGOPERATOR",
T__regclass: "_REGCLASS",
T__regtype: "_REGTYPE",
T_record: "RECORD",
T_cstring: "CSTRING",
T_any: "ANY",
T_anyarray: "ANYARRAY",
T_void: "VOID",
T_trigger: "TRIGGER",
T_language_handler: "LANGUAGE_HANDLER",
T_internal: "INTERNAL",
T_opaque: "OPAQUE",
T_anyelement: "ANYELEMENT",
T__record: "_RECORD",
T_anynonarray: "ANYNONARRAY",
T_pg_authid: "PG_AUTHID",
T_pg_auth_members: "PG_AUTH_MEMBERS",
T__txid_snapshot: "_TXID_SNAPSHOT",
T_uuid: "UUID",
T__uuid: "_UUID",
T_txid_snapshot: "TXID_SNAPSHOT",
T_fdw_handler: "FDW_HANDLER",
T_pg_lsn: "PG_LSN",
T__pg_lsn: "_PG_LSN",
T_tsm_handler: "TSM_HANDLER",
T_anyenum: "ANYENUM",
T_tsvector: "TSVECTOR",
T_tsquery: "TSQUERY",
T_gtsvector: "GTSVECTOR",
T__tsvector: "_TSVECTOR",
T__gtsvector: "_GTSVECTOR",
T__tsquery: "_TSQUERY",
T_regconfig: "REGCONFIG",
T__regconfig: "_REGCONFIG",
T_regdictionary: "REGDICTIONARY",
T__regdictionary: "_REGDICTIONARY",
T_jsonb: "JSONB",
T__jsonb: "_JSONB",
T_anyrange: "ANYRANGE",
T_event_trigger: "EVENT_TRIGGER",
T_int4range: "INT4RANGE",
T__int4range: "_INT4RANGE",
T_numrange: "NUMRANGE",
T__numrange: "_NUMRANGE",
T_tsrange: "TSRANGE",
T__tsrange: "_TSRANGE",
T_tstzrange: "TSTZRANGE",
T__tstzrange: "_TSTZRANGE",
T_daterange: "DATERANGE",
T__daterange: "_DATERANGE",
T_int8range: "INT8RANGE",
T__int8range: "_INT8RANGE",
T_pg_shseclabel: "PG_SHSECLABEL",
T_regnamespace: "REGNAMESPACE",
T__regnamespace: "_REGNAMESPACE",
T_regrole: "REGROLE",
T__regrole: "_REGROLE",
}

93
vendor/src/github.com/lib/pq/rows.go vendored Normal file
View file

@ -0,0 +1,93 @@
package pq
import (
"math"
"reflect"
"time"
"github.com/lib/pq/oid"
)
const headerSize = 4
type fieldDesc struct {
// The object ID of the data type.
OID oid.Oid
// The data type size (see pg_type.typlen).
// Note that negative values denote variable-width types.
Len int
// The type modifier (see pg_attribute.atttypmod).
// The meaning of the modifier is type-specific.
Mod int
}
func (fd fieldDesc) Type() reflect.Type {
switch fd.OID {
case oid.T_int8:
return reflect.TypeOf(int64(0))
case oid.T_int4:
return reflect.TypeOf(int32(0))
case oid.T_int2:
return reflect.TypeOf(int16(0))
case oid.T_varchar, oid.T_text:
return reflect.TypeOf("")
case oid.T_bool:
return reflect.TypeOf(false)
case oid.T_date, oid.T_time, oid.T_timetz, oid.T_timestamp, oid.T_timestamptz:
return reflect.TypeOf(time.Time{})
case oid.T_bytea:
return reflect.TypeOf([]byte(nil))
default:
return reflect.TypeOf(new(interface{})).Elem()
}
}
func (fd fieldDesc) Name() string {
return oid.TypeName[fd.OID]
}
func (fd fieldDesc) Length() (length int64, ok bool) {
switch fd.OID {
case oid.T_text, oid.T_bytea:
return math.MaxInt64, true
case oid.T_varchar, oid.T_bpchar:
return int64(fd.Mod - headerSize), true
default:
return 0, false
}
}
func (fd fieldDesc) PrecisionScale() (precision, scale int64, ok bool) {
switch fd.OID {
case oid.T_numeric, oid.T__numeric:
mod := fd.Mod - headerSize
precision = int64((mod >> 16) & 0xffff)
scale = int64(mod & 0xffff)
return precision, scale, true
default:
return 0, 0, false
}
}
// ColumnTypeScanType returns the value type that can be used to scan types into.
func (rs *rows) ColumnTypeScanType(index int) reflect.Type {
return rs.colTyps[index].Type()
}
// ColumnTypeDatabaseTypeName return the database system type name.
func (rs *rows) ColumnTypeDatabaseTypeName(index int) string {
return rs.colTyps[index].Name()
}
// ColumnTypeLength returns the length of the column type if the column is a
// variable length type. If the column is not a variable length type ok
// should return false.
func (rs *rows) ColumnTypeLength(index int) (length int64, ok bool) {
return rs.colTyps[index].Length()
}
// ColumnTypePrecisionScale should return the precision and scale for decimal
// types. If not applicable, ok should be false.
func (rs *rows) ColumnTypePrecisionScale(index int) (precision, scale int64, ok bool) {
return rs.colTyps[index].PrecisionScale()
}

220
vendor/src/github.com/lib/pq/rows_test.go vendored Normal file
View file

@ -0,0 +1,220 @@
// +build go1.8
package pq
import (
"math"
"reflect"
"testing"
"github.com/lib/pq/oid"
)
func TestDataTypeName(t *testing.T) {
tts := []struct {
typ oid.Oid
name string
}{
{oid.T_int8, "INT8"},
{oid.T_int4, "INT4"},
{oid.T_int2, "INT2"},
{oid.T_varchar, "VARCHAR"},
{oid.T_text, "TEXT"},
{oid.T_bool, "BOOL"},
{oid.T_numeric, "NUMERIC"},
{oid.T_date, "DATE"},
{oid.T_time, "TIME"},
{oid.T_timetz, "TIMETZ"},
{oid.T_timestamp, "TIMESTAMP"},
{oid.T_timestamptz, "TIMESTAMPTZ"},
{oid.T_bytea, "BYTEA"},
}
for i, tt := range tts {
dt := fieldDesc{OID: tt.typ}
if name := dt.Name(); name != tt.name {
t.Errorf("(%d) got: %s want: %s", i, name, tt.name)
}
}
}
func TestDataType(t *testing.T) {
tts := []struct {
typ oid.Oid
kind reflect.Kind
}{
{oid.T_int8, reflect.Int64},
{oid.T_int4, reflect.Int32},
{oid.T_int2, reflect.Int16},
{oid.T_varchar, reflect.String},
{oid.T_text, reflect.String},
{oid.T_bool, reflect.Bool},
{oid.T_date, reflect.Struct},
{oid.T_time, reflect.Struct},
{oid.T_timetz, reflect.Struct},
{oid.T_timestamp, reflect.Struct},
{oid.T_timestamptz, reflect.Struct},
{oid.T_bytea, reflect.Slice},
}
for i, tt := range tts {
dt := fieldDesc{OID: tt.typ}
if kind := dt.Type().Kind(); kind != tt.kind {
t.Errorf("(%d) got: %s want: %s", i, kind, tt.kind)
}
}
}
func TestDataTypeLength(t *testing.T) {
tts := []struct {
typ oid.Oid
len int
mod int
length int64
ok bool
}{
{oid.T_int4, 0, -1, 0, false},
{oid.T_varchar, 65535, 9, 5, true},
{oid.T_text, 65535, -1, math.MaxInt64, true},
{oid.T_bytea, 65535, -1, math.MaxInt64, true},
}
for i, tt := range tts {
dt := fieldDesc{OID: tt.typ, Len: tt.len, Mod: tt.mod}
if l, k := dt.Length(); k != tt.ok || l != tt.length {
t.Errorf("(%d) got: %d, %t want: %d, %t", i, l, k, tt.length, tt.ok)
}
}
}
func TestDataTypePrecisionScale(t *testing.T) {
tts := []struct {
typ oid.Oid
mod int
precision, scale int64
ok bool
}{
{oid.T_int4, -1, 0, 0, false},
{oid.T_numeric, 589830, 9, 2, true},
{oid.T_text, -1, 0, 0, false},
}
for i, tt := range tts {
dt := fieldDesc{OID: tt.typ, Mod: tt.mod}
p, s, k := dt.PrecisionScale()
if k != tt.ok {
t.Errorf("(%d) got: %t want: %t", i, k, tt.ok)
}
if p != tt.precision {
t.Errorf("(%d) wrong precision got: %d want: %d", i, p, tt.precision)
}
if s != tt.scale {
t.Errorf("(%d) wrong scale got: %d want: %d", i, s, tt.scale)
}
}
}
func TestRowsColumnTypes(t *testing.T) {
columnTypesTests := []struct {
Name string
TypeName string
Length struct {
Len int64
OK bool
}
DecimalSize struct {
Precision int64
Scale int64
OK bool
}
ScanType reflect.Type
}{
{
Name: "a",
TypeName: "INT4",
Length: struct {
Len int64
OK bool
}{
Len: 0,
OK: false,
},
DecimalSize: struct {
Precision int64
Scale int64
OK bool
}{
Precision: 0,
Scale: 0,
OK: false,
},
ScanType: reflect.TypeOf(int32(0)),
}, {
Name: "bar",
TypeName: "TEXT",
Length: struct {
Len int64
OK bool
}{
Len: math.MaxInt64,
OK: true,
},
DecimalSize: struct {
Precision int64
Scale int64
OK bool
}{
Precision: 0,
Scale: 0,
OK: false,
},
ScanType: reflect.TypeOf(""),
},
}
db := openTestConn(t)
defer db.Close()
rows, err := db.Query("SELECT 1 AS a, text 'bar' AS bar, 1.28::numeric(9, 2) AS dec")
if err != nil {
t.Fatal(err)
}
columns, err := rows.ColumnTypes()
if err != nil {
t.Fatal(err)
}
if len(columns) != 3 {
t.Errorf("expected 3 columns found %d", len(columns))
}
for i, tt := range columnTypesTests {
c := columns[i]
if c.Name() != tt.Name {
t.Errorf("(%d) got: %s, want: %s", i, c.Name(), tt.Name)
}
if c.DatabaseTypeName() != tt.TypeName {
t.Errorf("(%d) got: %s, want: %s", i, c.DatabaseTypeName(), tt.TypeName)
}
l, ok := c.Length()
if l != tt.Length.Len {
t.Errorf("(%d) got: %d, want: %d", i, l, tt.Length.Len)
}
if ok != tt.Length.OK {
t.Errorf("(%d) got: %t, want: %t", i, ok, tt.Length.OK)
}
p, s, ok := c.DecimalSize()
if p != tt.DecimalSize.Precision {
t.Errorf("(%d) got: %d, want: %d", i, p, tt.DecimalSize.Precision)
}
if s != tt.DecimalSize.Scale {
t.Errorf("(%d) got: %d, want: %d", i, s, tt.DecimalSize.Scale)
}
if ok != tt.DecimalSize.OK {
t.Errorf("(%d) got: %t, want: %t", i, ok, tt.DecimalSize.OK)
}
if c.ScanType() != tt.ScanType {
t.Errorf("(%d) got: %v, want: %v", i, c.ScanType(), tt.ScanType)
}
}
}

123
vendor/src/github.com/lib/pq/ssl.go vendored
View file

@ -15,7 +15,7 @@ import (
func ssl(o values) func(net.Conn) net.Conn {
verifyCaOnly := false
tlsConf := tls.Config{}
switch mode := o.Get("sslmode"); mode {
switch mode := o["sslmode"]; mode {
// "require" is the default.
case "", "require":
// We must skip TLS's own verification since it requires full
@ -23,15 +23,19 @@ func ssl(o values) func(net.Conn) net.Conn {
tlsConf.InsecureSkipVerify = true
// From http://www.postgresql.org/docs/current/static/libpq-ssl.html:
// Note: For backwards compatibility with earlier versions of PostgreSQL, if a
// root CA file exists, the behavior of sslmode=require will be the same as
// that of verify-ca, meaning the server certificate is validated against the
// CA. Relying on this behavior is discouraged, and applications that need
// certificate validation should always use verify-ca or verify-full.
if _, err := os.Stat(o.Get("sslrootcert")); err == nil {
verifyCaOnly = true
} else {
o.Set("sslrootcert", "")
//
// Note: For backwards compatibility with earlier versions of
// PostgreSQL, if a root CA file exists, the behavior of
// sslmode=require will be the same as that of verify-ca, meaning the
// server certificate is validated against the CA. Relying on this
// behavior is discouraged, and applications that need certificate
// validation should always use verify-ca or verify-full.
if sslrootcert, ok := o["sslrootcert"]; ok {
if _, err := os.Stat(sslrootcert); err == nil {
verifyCaOnly = true
} else {
delete(o, "sslrootcert")
}
}
case "verify-ca":
// We must skip TLS's own verification since it requires full
@ -39,7 +43,7 @@ func ssl(o values) func(net.Conn) net.Conn {
tlsConf.InsecureSkipVerify = true
verifyCaOnly = true
case "verify-full":
tlsConf.ServerName = o.Get("host")
tlsConf.ServerName = o["host"]
case "disable":
return nil
default:
@ -64,37 +68,42 @@ func ssl(o values) func(net.Conn) net.Conn {
// in the user's home directory. The configured files must exist and have
// the correct permissions.
func sslClientCertificates(tlsConf *tls.Config, o values) {
sslkey := o.Get("sslkey")
sslcert := o.Get("sslcert")
// user.Current() might fail when cross-compiling. We have to ignore the
// error and continue without home directory defaults, since we wouldn't
// know from where to load them.
user, _ := user.Current()
var cinfo, kinfo os.FileInfo
var err error
if sslcert != "" && sslkey != "" {
// Check that both files exist. Note that we don't do any more extensive
// checks than this (such as checking that the paths aren't directories);
// LoadX509KeyPair() will take care of the rest.
cinfo, err = os.Stat(sslcert)
if err != nil {
panic(err)
}
kinfo, err = os.Stat(sslkey)
if err != nil {
panic(err)
}
} else {
// Automatically find certificates from ~/.postgresql
sslcert, sslkey, cinfo, kinfo = sslHomeCertificates()
if cinfo == nil || kinfo == nil {
// No certificates to load
return
}
// In libpq, the client certificate is only loaded if the setting is not blank.
//
// https://github.com/postgres/postgres/blob/REL9_6_2/src/interfaces/libpq/fe-secure-openssl.c#L1036-L1037
sslcert := o["sslcert"]
if len(sslcert) == 0 && user != nil {
sslcert = filepath.Join(user.HomeDir, ".postgresql", "postgresql.crt")
}
// https://github.com/postgres/postgres/blob/REL9_6_2/src/interfaces/libpq/fe-secure-openssl.c#L1045
if len(sslcert) == 0 {
return
}
// https://github.com/postgres/postgres/blob/REL9_6_2/src/interfaces/libpq/fe-secure-openssl.c#L1050:L1054
if _, err := os.Stat(sslcert); os.IsNotExist(err) {
return
} else if err != nil {
panic(err)
}
// The files must also have the correct permissions
sslCertificatePermissions(cinfo, kinfo)
// In libpq, the ssl key is only loaded if the setting is not blank.
//
// https://github.com/postgres/postgres/blob/REL9_6_2/src/interfaces/libpq/fe-secure-openssl.c#L1123-L1222
sslkey := o["sslkey"]
if len(sslkey) == 0 && user != nil {
sslkey = filepath.Join(user.HomeDir, ".postgresql", "postgresql.key")
}
if len(sslkey) > 0 {
if err := sslKeyPermissions(sslkey); err != nil {
panic(err)
}
}
cert, err := tls.LoadX509KeyPair(sslcert, sslkey)
if err != nil {
@ -105,7 +114,10 @@ func sslClientCertificates(tlsConf *tls.Config, o values) {
// sslCertificateAuthority adds the RootCA specified in the "sslrootcert" setting.
func sslCertificateAuthority(tlsConf *tls.Config, o values) {
if sslrootcert := o.Get("sslrootcert"); sslrootcert != "" {
// In libpq, the root certificate is only loaded if the setting is not blank.
//
// https://github.com/postgres/postgres/blob/REL9_6_2/src/interfaces/libpq/fe-secure-openssl.c#L950-L951
if sslrootcert := o["sslrootcert"]; len(sslrootcert) > 0 {
tlsConf.RootCAs = x509.NewCertPool()
cert, err := ioutil.ReadFile(sslrootcert)
@ -113,41 +125,12 @@ func sslCertificateAuthority(tlsConf *tls.Config, o values) {
panic(err)
}
ok := tlsConf.RootCAs.AppendCertsFromPEM(cert)
if !ok {
if !tlsConf.RootCAs.AppendCertsFromPEM(cert) {
errorf("couldn't parse pem in sslrootcert")
}
}
}
// sslHomeCertificates returns the path and stats of certificates in the current
// user's home directory.
func sslHomeCertificates() (cert, key string, cinfo, kinfo os.FileInfo) {
user, err := user.Current()
if err != nil {
// user.Current() might fail when cross-compiling. We have to ignore the
// error and continue without client certificates, since we wouldn't know
// from where to load them.
return
}
cert = filepath.Join(user.HomeDir, ".postgresql", "postgresql.crt")
key = filepath.Join(user.HomeDir, ".postgresql", "postgresql.key")
cinfo, err = os.Stat(cert)
if err != nil {
cinfo = nil
}
kinfo, err = os.Stat(key)
if err != nil {
kinfo = nil
}
return
}
// sslVerifyCertificateAuthority carries out a TLS handshake to the server and
// verifies the presented certificate against the CA, i.e. the one specified in
// sslrootcert or the system CA if sslrootcert was not specified.

16
vendor/src/github.com/lib/pq/ssl_permissions.go vendored
View file

@ -4,13 +4,17 @@ package pq
import "os"
// sslCertificatePermissions checks the permissions on user-supplied certificate
// files. The key file should have very little access.
// sslKeyPermissions checks the permissions on user-supplied ssl key files.
// The key file should have very little access.
//
// libpq does not check key file permissions on Windows.
func sslCertificatePermissions(cert, key os.FileInfo) {
kmode := key.Mode()
if kmode != kmode&0600 {
panic(ErrSSLKeyHasWorldPermissions)
func sslKeyPermissions(sslkey string) error {
info, err := os.Stat(sslkey)
if err != nil {
return err
}
if info.Mode().Perm()&0077 != 0 {
return ErrSSLKeyHasWorldPermissions
}
return nil
}

198
vendor/src/github.com/lib/pq/ssl_test.go vendored
View file

@ -6,7 +6,6 @@ import (
_ "crypto/sha256"
"crypto/x509"
"database/sql"
"fmt"
"os"
"path/filepath"
"testing"
@ -42,10 +41,13 @@ func openSSLConn(t *testing.T, conninfo string) (*sql.DB, error) {
}
func checkSSLSetup(t *testing.T, conninfo string) {
db, err := openSSLConn(t, conninfo)
if err == nil {
db.Close()
t.Fatalf("expected error with conninfo=%q", conninfo)
_, err := openSSLConn(t, conninfo)
if pge, ok := err.(*Error); ok {
if pge.Code.Name() != "invalid_authorization_specification" {
t.Fatalf("unexpected error code '%s'", pge.Code.Name())
}
} else {
t.Fatalf("expected %T, got %v", (*Error)(nil), err)
}
}
@ -150,120 +152,128 @@ func TestSSLVerifyCA(t *testing.T) {
checkSSLSetup(t, "sslmode=disable user=pqgossltest")
// Not OK according to the system CA
_, err := openSSLConn(t, "host=postgres sslmode=verify-ca user=pqgossltest")
if err == nil {
t.Fatal("expected error")
{
_, err := openSSLConn(t, "host=postgres sslmode=verify-ca user=pqgossltest")
if _, ok := err.(x509.UnknownAuthorityError); !ok {
t.Fatalf("expected %T, got %#+v", x509.UnknownAuthorityError{}, err)
}
}
_, ok := err.(x509.UnknownAuthorityError)
if !ok {
t.Fatalf("expected x509.UnknownAuthorityError, got %#+v", err)
// Still not OK according to the system CA; empty sslrootcert is treated as unspecified.
{
_, err := openSSLConn(t, "host=postgres sslmode=verify-ca user=pqgossltest sslrootcert=''")
if _, ok := err.(x509.UnknownAuthorityError); !ok {
t.Fatalf("expected %T, got %#+v", x509.UnknownAuthorityError{}, err)
}
}
rootCertPath := filepath.Join(os.Getenv("PQSSLCERTTEST_PATH"), "root.crt")
rootCert := "sslrootcert=" + rootCertPath + " "
// No match on Common Name, but that's OK
_, err = openSSLConn(t, rootCert+"host=127.0.0.1 sslmode=verify-ca user=pqgossltest")
if err != nil {
if _, err := openSSLConn(t, rootCert+"host=127.0.0.1 sslmode=verify-ca user=pqgossltest"); err != nil {
t.Fatal(err)
}
// Everything OK
_, err = openSSLConn(t, rootCert+"host=postgres sslmode=verify-ca user=pqgossltest")
if err != nil {
if _, err := openSSLConn(t, rootCert+"host=postgres sslmode=verify-ca user=pqgossltest"); err != nil {
t.Fatal(err)
}
}
func getCertConninfo(t *testing.T, source string) string {
var sslkey string
var sslcert string
certpath := os.Getenv("PQSSLCERTTEST_PATH")
switch source {
case "missingkey":
sslkey = "/tmp/filedoesnotexist"
sslcert = filepath.Join(certpath, "postgresql.crt")
case "missingcert":
sslkey = filepath.Join(certpath, "postgresql.key")
sslcert = "/tmp/filedoesnotexist"
case "certtwice":
sslkey = filepath.Join(certpath, "postgresql.crt")
sslcert = filepath.Join(certpath, "postgresql.crt")
case "valid":
sslkey = filepath.Join(certpath, "postgresql.key")
sslcert = filepath.Join(certpath, "postgresql.crt")
default:
t.Fatalf("invalid source %q", source)
}
return fmt.Sprintf("sslmode=require user=pqgosslcert sslkey=%s sslcert=%s", sslkey, sslcert)
}
// Authenticate over SSL using client certificates
func TestSSLClientCertificates(t *testing.T) {
maybeSkipSSLTests(t)
// Environment sanity check: should fail without SSL
checkSSLSetup(t, "sslmode=disable user=pqgossltest")
// Should also fail without a valid certificate
db, err := openSSLConn(t, "sslmode=require user=pqgosslcert")
if err == nil {
db.Close()
t.Fatal("expected error")
const baseinfo = "sslmode=require user=pqgosslcert"
// Certificate not specified, should fail
{
_, err := openSSLConn(t, baseinfo)
if pge, ok := err.(*Error); ok {
if pge.Code.Name() != "invalid_authorization_specification" {
t.Fatalf("unexpected error code '%s'", pge.Code.Name())
}
} else {
t.Fatalf("expected %T, got %v", (*Error)(nil), err)
}
}
pge, ok := err.(*Error)
// Empty certificate specified, should fail
{
_, err := openSSLConn(t, baseinfo+" sslcert=''")
if pge, ok := err.(*Error); ok {
if pge.Code.Name() != "invalid_authorization_specification" {
t.Fatalf("unexpected error code '%s'", pge.Code.Name())
}
} else {
t.Fatalf("expected %T, got %v", (*Error)(nil), err)
}
}
// Non-existent certificate specified, should fail
{
_, err := openSSLConn(t, baseinfo+" sslcert=/tmp/filedoesnotexist")
if pge, ok := err.(*Error); ok {
if pge.Code.Name() != "invalid_authorization_specification" {
t.Fatalf("unexpected error code '%s'", pge.Code.Name())
}
} else {
t.Fatalf("expected %T, got %v", (*Error)(nil), err)
}
}
certpath, ok := os.LookupEnv("PQSSLCERTTEST_PATH")
if !ok {
t.Fatal("expected pq.Error")
t.Fatalf("PQSSLCERTTEST_PATH not present in environment")
}
if pge.Code.Name() != "invalid_authorization_specification" {
t.Fatalf("unexpected error code %q", pge.Code.Name())
sslcert := filepath.Join(certpath, "postgresql.crt")
// Cert present, key not specified, should fail
{
_, err := openSSLConn(t, baseinfo+" sslcert="+sslcert)
if _, ok := err.(*os.PathError); !ok {
t.Fatalf("expected %T, got %#+v", (*os.PathError)(nil), err)
}
}
// Cert present, empty key specified, should fail
{
_, err := openSSLConn(t, baseinfo+" sslcert="+sslcert+" sslkey=''")
if _, ok := err.(*os.PathError); !ok {
t.Fatalf("expected %T, got %#+v", (*os.PathError)(nil), err)
}
}
// Cert present, non-existent key, should fail
{
_, err := openSSLConn(t, baseinfo+" sslcert="+sslcert+" sslkey=/tmp/filedoesnotexist")
if _, ok := err.(*os.PathError); !ok {
t.Fatalf("expected %T, got %#+v", (*os.PathError)(nil), err)
}
}
// Key has wrong permissions (passing the cert as the key), should fail
if _, err := openSSLConn(t, baseinfo+" sslcert="+sslcert+" sslkey="+sslcert); err != ErrSSLKeyHasWorldPermissions {
t.Fatalf("expected %s, got %#+v", ErrSSLKeyHasWorldPermissions, err)
}
sslkey := filepath.Join(certpath, "postgresql.key")
// Should work
db, err = openSSLConn(t, getCertConninfo(t, "valid"))
if err != nil {
if db, err := openSSLConn(t, baseinfo+" sslcert="+sslcert+" sslkey="+sslkey); err != nil {
t.Fatal(err)
}
rows, err := db.Query("SELECT 1")
if err != nil {
t.Fatal(err)
}
rows.Close()
}
// Test errors with ssl certificates
func TestSSLClientCertificatesMissingFiles(t *testing.T) {
maybeSkipSSLTests(t)
// Environment sanity check: should fail without SSL
checkSSLSetup(t, "sslmode=disable user=pqgossltest")
// Key missing, should fail
_, err := openSSLConn(t, getCertConninfo(t, "missingkey"))
if err == nil {
t.Fatal("expected error")
}
// should be a PathError
_, ok := err.(*os.PathError)
if !ok {
t.Fatalf("expected PathError, got %#+v", err)
}
// Cert missing, should fail
_, err = openSSLConn(t, getCertConninfo(t, "missingcert"))
if err == nil {
t.Fatal("expected error")
}
// should be a PathError
_, ok = err.(*os.PathError)
if !ok {
t.Fatalf("expected PathError, got %#+v", err)
}
// Key has wrong permissions, should fail
_, err = openSSLConn(t, getCertConninfo(t, "certtwice"))
if err == nil {
t.Fatal("expected error")
}
if err != ErrSSLKeyHasWorldPermissions {
t.Fatalf("expected ErrSSLKeyHasWorldPermissions, got %#+v", err)
} else {
rows, err := db.Query("SELECT 1")
if err != nil {
t.Fatal(err)
}
if err := rows.Close(); err != nil {
t.Fatal(err)
}
if err := db.Close(); err != nil {
t.Fatal(err)
}
}
}

10
vendor/src/github.com/lib/pq/ssl_windows.go vendored
View file

@ -2,8 +2,8 @@
package pq
import "os"
// sslCertificatePermissions checks the permissions on user-supplied certificate
// files. In libpq, this is a no-op on Windows.
func sslCertificatePermissions(cert, key os.FileInfo) {}
// sslKeyPermissions checks the permissions on user-supplied ssl key files.
// The key file should have very little access.
//
// libpq does not check key file permissions on Windows.
func sslKeyPermissions(string) error { return nil }

2
vendor/src/github.com/lib/pq/uuid_test.go vendored
View file

@ -33,7 +33,7 @@ func TestDecodeUUIDBackend(t *testing.T) {
db := openTestConn(t)
defer db.Close()
var s string = "a0ecc91d-a13f-4fe4-9fce-7e09777cc70a"
var s = "a0ecc91d-a13f-4fe4-9fce-7e09777cc70a"
var scanned interface{}
err := db.QueryRow(`SELECT $1::uuid`, s).Scan(&scanned)