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adbb38f298
The PostgreSQL server will reject messages greater than ~1 GB anyway. However, worse than that is that a message that is larger than 4 GB could wrap the 32-bit integer message size and be interpreted by the server as multiple messages. This could allow a malicious client to inject arbitrary protocol messages. https://github.com/jackc/pgx/security/advisories/GHSA-mrww-27vc-gghv
47 lines
899 B
Go
47 lines
899 B
Go
package pgproto3
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import (
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"encoding/json"
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)
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type GSSResponse struct {
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Data []byte
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}
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// Frontend identifies this message as sendable by a PostgreSQL frontend.
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func (g *GSSResponse) Frontend() {}
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func (g *GSSResponse) Decode(data []byte) error {
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g.Data = data
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return nil
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}
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func (g *GSSResponse) Encode(dst []byte) ([]byte, error) {
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dst, sp := beginMessage(dst, 'p')
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dst = append(dst, g.Data...)
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return finishMessage(dst, sp)
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}
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// MarshalJSON implements encoding/json.Marshaler.
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func (g *GSSResponse) MarshalJSON() ([]byte, error) {
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return json.Marshal(struct {
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Type string
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Data []byte
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}{
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Type: "GSSResponse",
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Data: g.Data,
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})
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}
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// UnmarshalJSON implements encoding/json.Unmarshaler.
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func (g *GSSResponse) UnmarshalJSON(data []byte) error {
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var msg struct {
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Data []byte
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}
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if err := json.Unmarshal(data, &msg); err != nil {
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return err
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}
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g.Data = msg.Data
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return nil
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}
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