mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2025-10-31 06:21:11 +00:00
70ea2300ca* Vendor: update gitea.com/macaron/session to a177a270 * make vendor * Vendor: update gitea.com/macaron/macaron to 0db5d458 * make vendor * Vendor: update gitea.com/macaron/cache to 905232fb * make vendor * Vendor: update gitea.com/macaron/i18n to 4ca3dd0c * make vendor * Vendor: update gitea.com/macaron/gzip to efa5e847 * make vendor * Vendor: update gitea.com/macaron/captcha to e8597820 * make vendor
355 lines
11 KiB
Go
Vendored
355 lines
11 KiB
Go
Vendored
// Package gomemcached is binary protocol packet formats and constants.
|
|
package gomemcached
|
|
|
|
import (
|
|
"fmt"
|
|
)
|
|
|
|
const (
|
|
REQ_MAGIC = 0x80
|
|
RES_MAGIC = 0x81
|
|
FLEX_MAGIC = 0x08
|
|
FLEX_RES_MAGIC = 0x18
|
|
)
|
|
|
|
// CommandCode for memcached packets.
|
|
type CommandCode uint8
|
|
|
|
const (
|
|
GET = CommandCode(0x00)
|
|
SET = CommandCode(0x01)
|
|
ADD = CommandCode(0x02)
|
|
REPLACE = CommandCode(0x03)
|
|
DELETE = CommandCode(0x04)
|
|
INCREMENT = CommandCode(0x05)
|
|
DECREMENT = CommandCode(0x06)
|
|
QUIT = CommandCode(0x07)
|
|
FLUSH = CommandCode(0x08)
|
|
GETQ = CommandCode(0x09)
|
|
NOOP = CommandCode(0x0a)
|
|
VERSION = CommandCode(0x0b)
|
|
GETK = CommandCode(0x0c)
|
|
GETKQ = CommandCode(0x0d)
|
|
APPEND = CommandCode(0x0e)
|
|
PREPEND = CommandCode(0x0f)
|
|
STAT = CommandCode(0x10)
|
|
SETQ = CommandCode(0x11)
|
|
ADDQ = CommandCode(0x12)
|
|
REPLACEQ = CommandCode(0x13)
|
|
DELETEQ = CommandCode(0x14)
|
|
INCREMENTQ = CommandCode(0x15)
|
|
DECREMENTQ = CommandCode(0x16)
|
|
QUITQ = CommandCode(0x17)
|
|
FLUSHQ = CommandCode(0x18)
|
|
APPENDQ = CommandCode(0x19)
|
|
AUDIT = CommandCode(0x27)
|
|
PREPENDQ = CommandCode(0x1a)
|
|
GAT = CommandCode(0x1d)
|
|
HELLO = CommandCode(0x1f)
|
|
RGET = CommandCode(0x30)
|
|
RSET = CommandCode(0x31)
|
|
RSETQ = CommandCode(0x32)
|
|
RAPPEND = CommandCode(0x33)
|
|
RAPPENDQ = CommandCode(0x34)
|
|
RPREPEND = CommandCode(0x35)
|
|
RPREPENDQ = CommandCode(0x36)
|
|
RDELETE = CommandCode(0x37)
|
|
RDELETEQ = CommandCode(0x38)
|
|
RINCR = CommandCode(0x39)
|
|
RINCRQ = CommandCode(0x3a)
|
|
RDECR = CommandCode(0x3b)
|
|
RDECRQ = CommandCode(0x3c)
|
|
|
|
SASL_LIST_MECHS = CommandCode(0x20)
|
|
SASL_AUTH = CommandCode(0x21)
|
|
SASL_STEP = CommandCode(0x22)
|
|
|
|
SET_VBUCKET = CommandCode(0x3d)
|
|
|
|
TAP_CONNECT = CommandCode(0x40) // Client-sent request to initiate Tap feed
|
|
TAP_MUTATION = CommandCode(0x41) // Notification of a SET/ADD/REPLACE/etc. on the server
|
|
TAP_DELETE = CommandCode(0x42) // Notification of a DELETE on the server
|
|
TAP_FLUSH = CommandCode(0x43) // Replicates a flush_all command
|
|
TAP_OPAQUE = CommandCode(0x44) // Opaque control data from the engine
|
|
TAP_VBUCKET_SET = CommandCode(0x45) // Sets state of vbucket in receiver (used in takeover)
|
|
TAP_CHECKPOINT_START = CommandCode(0x46) // Notifies start of new checkpoint
|
|
TAP_CHECKPOINT_END = CommandCode(0x47) // Notifies end of checkpoint
|
|
GET_ALL_VB_SEQNOS = CommandCode(0x48) // Get current high sequence numbers from all vbuckets located on the server
|
|
|
|
UPR_OPEN = CommandCode(0x50) // Open a UPR connection with a name
|
|
UPR_ADDSTREAM = CommandCode(0x51) // Sent by ebucketMigrator to UPR Consumer
|
|
UPR_CLOSESTREAM = CommandCode(0x52) // Sent by eBucketMigrator to UPR Consumer
|
|
UPR_FAILOVERLOG = CommandCode(0x54) // Request failover logs
|
|
UPR_STREAMREQ = CommandCode(0x53) // Stream request from consumer to producer
|
|
UPR_STREAMEND = CommandCode(0x55) // Sent by producer when it has no more messages to stream
|
|
UPR_SNAPSHOT = CommandCode(0x56) // Start of a new snapshot
|
|
UPR_MUTATION = CommandCode(0x57) // Key mutation
|
|
UPR_DELETION = CommandCode(0x58) // Key deletion
|
|
UPR_EXPIRATION = CommandCode(0x59) // Key expiration
|
|
UPR_FLUSH = CommandCode(0x5a) // Delete all the data for a vbucket
|
|
UPR_NOOP = CommandCode(0x5c) // UPR NOOP
|
|
UPR_BUFFERACK = CommandCode(0x5d) // UPR Buffer Acknowledgement
|
|
UPR_CONTROL = CommandCode(0x5e) // Set flow control params
|
|
|
|
SELECT_BUCKET = CommandCode(0x89) // Select bucket
|
|
|
|
OBSERVE_SEQNO = CommandCode(0x91) // Sequence Number based Observe
|
|
OBSERVE = CommandCode(0x92)
|
|
|
|
GET_META = CommandCode(0xA0) // Get meta. returns with expiry, flags, cas etc
|
|
GET_COLLECTIONS_MANIFEST = CommandCode(0xba) // Get entire collections manifest.
|
|
COLLECTIONS_GET_CID = CommandCode(0xbb) // Get collection id.
|
|
SUBDOC_GET = CommandCode(0xc5) // Get subdoc. Returns with xattrs
|
|
SUBDOC_MULTI_LOOKUP = CommandCode(0xd0) // Multi lookup. Doc xattrs and meta.
|
|
|
|
DCP_SYSTEM_EVENT = CommandCode(0x5f) // A system event has occurred
|
|
DCP_SEQNO_ADV = CommandCode(0x64) // Sent when the vb seqno has advanced due to an unsubscribed event
|
|
)
|
|
|
|
// command codes that are counted toward DCP control buffer
|
|
// when DCP clients receive DCP messages with these command codes, they need to provide acknowledgement
|
|
var BufferedCommandCodeMap = map[CommandCode]bool{
|
|
SET_VBUCKET: true,
|
|
UPR_STREAMEND: true,
|
|
UPR_SNAPSHOT: true,
|
|
UPR_MUTATION: true,
|
|
UPR_DELETION: true,
|
|
UPR_EXPIRATION: true,
|
|
DCP_SYSTEM_EVENT: true,
|
|
DCP_SEQNO_ADV: true,
|
|
}
|
|
|
|
// Status field for memcached response.
|
|
type Status uint16
|
|
|
|
// Matches with protocol_binary.h as source of truth
|
|
const (
|
|
SUCCESS = Status(0x00)
|
|
KEY_ENOENT = Status(0x01)
|
|
KEY_EEXISTS = Status(0x02)
|
|
E2BIG = Status(0x03)
|
|
EINVAL = Status(0x04)
|
|
NOT_STORED = Status(0x05)
|
|
DELTA_BADVAL = Status(0x06)
|
|
NOT_MY_VBUCKET = Status(0x07)
|
|
NO_BUCKET = Status(0x08)
|
|
LOCKED = Status(0x09)
|
|
AUTH_STALE = Status(0x1f)
|
|
AUTH_ERROR = Status(0x20)
|
|
AUTH_CONTINUE = Status(0x21)
|
|
ERANGE = Status(0x22)
|
|
ROLLBACK = Status(0x23)
|
|
EACCESS = Status(0x24)
|
|
NOT_INITIALIZED = Status(0x25)
|
|
UNKNOWN_COMMAND = Status(0x81)
|
|
ENOMEM = Status(0x82)
|
|
NOT_SUPPORTED = Status(0x83)
|
|
EINTERNAL = Status(0x84)
|
|
EBUSY = Status(0x85)
|
|
TMPFAIL = Status(0x86)
|
|
UNKNOWN_COLLECTION = Status(0x88)
|
|
|
|
SYNC_WRITE_IN_PROGRESS = Status(0xa2)
|
|
SYNC_WRITE_AMBIGUOUS = Status(0xa3)
|
|
|
|
// SUBDOC
|
|
SUBDOC_PATH_NOT_FOUND = Status(0xc0)
|
|
SUBDOC_BAD_MULTI = Status(0xcc)
|
|
SUBDOC_MULTI_PATH_FAILURE_DELETED = Status(0xd3)
|
|
)
|
|
|
|
// for log redaction
|
|
const (
|
|
UdTagBegin = "<ud>"
|
|
UdTagEnd = "</ud>"
|
|
)
|
|
|
|
var isFatal = map[Status]bool{
|
|
DELTA_BADVAL: true,
|
|
NO_BUCKET: true,
|
|
AUTH_STALE: true,
|
|
AUTH_ERROR: true,
|
|
ERANGE: true,
|
|
ROLLBACK: true,
|
|
EACCESS: true,
|
|
ENOMEM: true,
|
|
NOT_SUPPORTED: true,
|
|
}
|
|
|
|
// the producer/consumer bit in dcp flags
|
|
var DCP_PRODUCER uint32 = 0x01
|
|
|
|
// the include XATTRS bit in dcp flags
|
|
var DCP_OPEN_INCLUDE_XATTRS uint32 = 0x04
|
|
|
|
// the include deletion time bit in dcp flags
|
|
var DCP_OPEN_INCLUDE_DELETE_TIMES uint32 = 0x20
|
|
|
|
// Datatype to Include XATTRS in SUBDOC GET
|
|
var SUBDOC_FLAG_XATTR uint8 = 0x04
|
|
|
|
// MCItem is an internal representation of an item.
|
|
type MCItem struct {
|
|
Cas uint64
|
|
Flags, Expiration uint32
|
|
Data []byte
|
|
}
|
|
|
|
// Number of bytes in a binary protocol header.
|
|
const HDR_LEN = 24
|
|
|
|
// Mapping of CommandCode -> name of command (not exhaustive)
|
|
var CommandNames map[CommandCode]string
|
|
|
|
// StatusNames human readable names for memcached response.
|
|
var StatusNames map[Status]string
|
|
|
|
func init() {
|
|
CommandNames = make(map[CommandCode]string)
|
|
CommandNames[GET] = "GET"
|
|
CommandNames[SET] = "SET"
|
|
CommandNames[ADD] = "ADD"
|
|
CommandNames[REPLACE] = "REPLACE"
|
|
CommandNames[DELETE] = "DELETE"
|
|
CommandNames[INCREMENT] = "INCREMENT"
|
|
CommandNames[DECREMENT] = "DECREMENT"
|
|
CommandNames[QUIT] = "QUIT"
|
|
CommandNames[FLUSH] = "FLUSH"
|
|
CommandNames[GETQ] = "GETQ"
|
|
CommandNames[NOOP] = "NOOP"
|
|
CommandNames[VERSION] = "VERSION"
|
|
CommandNames[GETK] = "GETK"
|
|
CommandNames[GETKQ] = "GETKQ"
|
|
CommandNames[APPEND] = "APPEND"
|
|
CommandNames[PREPEND] = "PREPEND"
|
|
CommandNames[STAT] = "STAT"
|
|
CommandNames[SETQ] = "SETQ"
|
|
CommandNames[ADDQ] = "ADDQ"
|
|
CommandNames[REPLACEQ] = "REPLACEQ"
|
|
CommandNames[DELETEQ] = "DELETEQ"
|
|
CommandNames[INCREMENTQ] = "INCREMENTQ"
|
|
CommandNames[DECREMENTQ] = "DECREMENTQ"
|
|
CommandNames[QUITQ] = "QUITQ"
|
|
CommandNames[FLUSHQ] = "FLUSHQ"
|
|
CommandNames[APPENDQ] = "APPENDQ"
|
|
CommandNames[PREPENDQ] = "PREPENDQ"
|
|
CommandNames[RGET] = "RGET"
|
|
CommandNames[RSET] = "RSET"
|
|
CommandNames[RSETQ] = "RSETQ"
|
|
CommandNames[RAPPEND] = "RAPPEND"
|
|
CommandNames[RAPPENDQ] = "RAPPENDQ"
|
|
CommandNames[RPREPEND] = "RPREPEND"
|
|
CommandNames[RPREPENDQ] = "RPREPENDQ"
|
|
CommandNames[RDELETE] = "RDELETE"
|
|
CommandNames[RDELETEQ] = "RDELETEQ"
|
|
CommandNames[RINCR] = "RINCR"
|
|
CommandNames[RINCRQ] = "RINCRQ"
|
|
CommandNames[RDECR] = "RDECR"
|
|
CommandNames[RDECRQ] = "RDECRQ"
|
|
|
|
CommandNames[SASL_LIST_MECHS] = "SASL_LIST_MECHS"
|
|
CommandNames[SASL_AUTH] = "SASL_AUTH"
|
|
CommandNames[SASL_STEP] = "SASL_STEP"
|
|
|
|
CommandNames[TAP_CONNECT] = "TAP_CONNECT"
|
|
CommandNames[TAP_MUTATION] = "TAP_MUTATION"
|
|
CommandNames[TAP_DELETE] = "TAP_DELETE"
|
|
CommandNames[TAP_FLUSH] = "TAP_FLUSH"
|
|
CommandNames[TAP_OPAQUE] = "TAP_OPAQUE"
|
|
CommandNames[TAP_VBUCKET_SET] = "TAP_VBUCKET_SET"
|
|
CommandNames[TAP_CHECKPOINT_START] = "TAP_CHECKPOINT_START"
|
|
CommandNames[TAP_CHECKPOINT_END] = "TAP_CHECKPOINT_END"
|
|
|
|
CommandNames[UPR_OPEN] = "UPR_OPEN"
|
|
CommandNames[UPR_ADDSTREAM] = "UPR_ADDSTREAM"
|
|
CommandNames[UPR_CLOSESTREAM] = "UPR_CLOSESTREAM"
|
|
CommandNames[UPR_FAILOVERLOG] = "UPR_FAILOVERLOG"
|
|
CommandNames[UPR_STREAMREQ] = "UPR_STREAMREQ"
|
|
CommandNames[UPR_STREAMEND] = "UPR_STREAMEND"
|
|
CommandNames[UPR_SNAPSHOT] = "UPR_SNAPSHOT"
|
|
CommandNames[UPR_MUTATION] = "UPR_MUTATION"
|
|
CommandNames[UPR_DELETION] = "UPR_DELETION"
|
|
CommandNames[UPR_EXPIRATION] = "UPR_EXPIRATION"
|
|
CommandNames[UPR_FLUSH] = "UPR_FLUSH"
|
|
CommandNames[UPR_NOOP] = "UPR_NOOP"
|
|
CommandNames[UPR_BUFFERACK] = "UPR_BUFFERACK"
|
|
CommandNames[UPR_CONTROL] = "UPR_CONTROL"
|
|
CommandNames[SUBDOC_GET] = "SUBDOC_GET"
|
|
CommandNames[SUBDOC_MULTI_LOOKUP] = "SUBDOC_MULTI_LOOKUP"
|
|
CommandNames[GET_COLLECTIONS_MANIFEST] = "GET_COLLECTIONS_MANIFEST"
|
|
CommandNames[COLLECTIONS_GET_CID] = "COLLECTIONS_GET_CID"
|
|
CommandNames[DCP_SYSTEM_EVENT] = "DCP_SYSTEM_EVENT"
|
|
CommandNames[DCP_SEQNO_ADV] = "DCP_SEQNO_ADV"
|
|
|
|
StatusNames = make(map[Status]string)
|
|
StatusNames[SUCCESS] = "SUCCESS"
|
|
StatusNames[KEY_ENOENT] = "KEY_ENOENT"
|
|
StatusNames[KEY_EEXISTS] = "KEY_EEXISTS"
|
|
StatusNames[E2BIG] = "E2BIG"
|
|
StatusNames[EINVAL] = "EINVAL"
|
|
StatusNames[NOT_STORED] = "NOT_STORED"
|
|
StatusNames[DELTA_BADVAL] = "DELTA_BADVAL"
|
|
StatusNames[NOT_MY_VBUCKET] = "NOT_MY_VBUCKET"
|
|
StatusNames[NO_BUCKET] = "NO_BUCKET"
|
|
StatusNames[AUTH_STALE] = "AUTH_STALE"
|
|
StatusNames[AUTH_ERROR] = "AUTH_ERROR"
|
|
StatusNames[AUTH_CONTINUE] = "AUTH_CONTINUE"
|
|
StatusNames[ERANGE] = "ERANGE"
|
|
StatusNames[ROLLBACK] = "ROLLBACK"
|
|
StatusNames[EACCESS] = "EACCESS"
|
|
StatusNames[NOT_INITIALIZED] = "NOT_INITIALIZED"
|
|
StatusNames[UNKNOWN_COMMAND] = "UNKNOWN_COMMAND"
|
|
StatusNames[ENOMEM] = "ENOMEM"
|
|
StatusNames[NOT_SUPPORTED] = "NOT_SUPPORTED"
|
|
StatusNames[EINTERNAL] = "EINTERNAL"
|
|
StatusNames[EBUSY] = "EBUSY"
|
|
StatusNames[TMPFAIL] = "TMPFAIL"
|
|
StatusNames[UNKNOWN_COLLECTION] = "UNKNOWN_COLLECTION"
|
|
StatusNames[SUBDOC_PATH_NOT_FOUND] = "SUBDOC_PATH_NOT_FOUND"
|
|
StatusNames[SUBDOC_BAD_MULTI] = "SUBDOC_BAD_MULTI"
|
|
|
|
}
|
|
|
|
// String an op code.
|
|
func (o CommandCode) String() (rv string) {
|
|
rv = CommandNames[o]
|
|
if rv == "" {
|
|
rv = fmt.Sprintf("0x%02x", int(o))
|
|
}
|
|
return rv
|
|
}
|
|
|
|
// String an op code.
|
|
func (s Status) String() (rv string) {
|
|
rv = StatusNames[s]
|
|
if rv == "" {
|
|
rv = fmt.Sprintf("0x%02x", int(s))
|
|
}
|
|
return rv
|
|
}
|
|
|
|
// IsQuiet will return true if a command is a "quiet" command.
|
|
func (o CommandCode) IsQuiet() bool {
|
|
switch o {
|
|
case GETQ,
|
|
GETKQ,
|
|
SETQ,
|
|
ADDQ,
|
|
REPLACEQ,
|
|
DELETEQ,
|
|
INCREMENTQ,
|
|
DECREMENTQ,
|
|
QUITQ,
|
|
FLUSHQ,
|
|
APPENDQ,
|
|
PREPENDQ,
|
|
RSETQ,
|
|
RAPPENDQ,
|
|
RPREPENDQ,
|
|
RDELETEQ,
|
|
RINCRQ,
|
|
RDECRQ:
|
|
return true
|
|
}
|
|
return false
|
|
}
|