util

Documentation

Index

• Variables
• func ExternalIP() net.IP
• func GetCurrentLocalDateTime() string
• func GetCurrentUnixTime() string
• func GetFileType(fSrc []byte) string
• func IsTokenExpired(createdTime string, expiresIn int) bool
• func IsValidObjectID(s string) bool
• func LocalIp() string
• type ObjectID
  • func NewObjectID() ObjectID
  • func NewObjectIDFromTimestamp(timestamp time.Time) ObjectID
  • func ObjectIDFromHex(s string) (ObjectID, error)
  • func (id ObjectID) Hex() string
  • func (id ObjectID) IsZero() bool
  • func (id ObjectID) MarshalJSON() ([]byte, error)
  • func (id ObjectID) MarshalText() ([]byte, error)
  • func (id ObjectID) String() string
  • func (id ObjectID) Timestamp() time.Time
  • func (id *ObjectID) UnmarshalJSON(b []byte) error
  • func (id *ObjectID) UnmarshalText(b []byte) error

Variables

var ErrInvalidHex = errors.New("the provided hex string is not a valid ObjectID")

ErrInvalidHex indicates that a hex string cannot be converted to an ObjectID.

Functions

func ExternalIP

func ExternalIP() net.IP

获取ip

func GetCurrentLocalDateTime

func GetCurrentLocalDateTime() string

func GetCurrentUnixTime

func GetCurrentUnixTime() string

func GetFileType

func GetFileType(fSrc []byte) string

用文件前面几个字节来判断 fSrc: 文件字节流（就用前面几个字节）

func IsTokenExpired

func IsTokenExpired(createdTime string, expiresIn int) bool

func IsValidObjectID

func IsValidObjectID(s string) bool

IsValidObjectID returns true if the provided hex string represents a valid ObjectID and false if not.

func LocalIp

func LocalIp() string

Types

type ObjectID

type ObjectID [12]byte

ObjectID is the BSON ObjectID type.

var NilObjectID ObjectID

NilObjectID is the zero value for ObjectID.

func NewObjectID

func NewObjectID() ObjectID

NewObjectID generates a new ObjectID.

func NewObjectIDFromTimestamp

func NewObjectIDFromTimestamp(timestamp time.Time) ObjectID

NewObjectIDFromTimestamp generates a new ObjectID based on the given time.

func ObjectIDFromHex

func ObjectIDFromHex(s string) (ObjectID, error)

ObjectIDFromHex creates a new ObjectID from a hex string. It returns an error if the hex string is not a valid ObjectID.

func (ObjectID) Hex

func (id ObjectID) Hex() string

Hex returns the hex encoding of the ObjectID as a string.

func (ObjectID) IsZero

func (id ObjectID) IsZero() bool

IsZero returns true if id is the empty ObjectID.

func (ObjectID) MarshalJSON

func (id ObjectID) MarshalJSON() ([]byte, error)

MarshalJSON returns the ObjectID as a string

func (ObjectID) MarshalText

func (id ObjectID) MarshalText() ([]byte, error)

MarshalText returns the ObjectID as UTF-8-encoded text. Implementing this allows us to use ObjectID as a map key when marshalling JSON. See https://pkg.go.dev/encoding#TextMarshaler

func (ObjectID) String

func (id ObjectID) String() string

func (ObjectID) Timestamp

func (id ObjectID) Timestamp() time.Time

Timestamp extracts the time part of the ObjectId.

func (*ObjectID) UnmarshalJSON

func (id *ObjectID) UnmarshalJSON(b []byte) error

UnmarshalJSON populates the byte slice with the ObjectID. If the byte slice is 24 bytes long, it will be populated with the hex representation of the ObjectID. If the byte slice is twelve bytes long, it will be populated with the BSON representation of the ObjectID. This method also accepts empty strings and decodes them as NilObjectID. For any other inputs, an error will be returned.

func (*ObjectID) UnmarshalText

func (id *ObjectID) UnmarshalText(b []byte) error

UnmarshalText populates the byte slice with the ObjectID. Implementing this allows us to use ObjectID as a map key when unmarshalling JSON. See https://pkg.go.dev/encoding#TextUnmarshaler