switch from github.com/lib/pq to github.com/jackc/pgx/v5HEAD20240905master

lib/pq is out of maintenance for some time now, so switch to the newer
more active library. Looks like it finally stabilized after a long time.

1 files changed, 76 insertions, 0 deletions

diff --git a/vendor/github.com/jackc/pgx/v5/pgproto3/authentication_md5_password.go b/vendor/github.com/jackc/pgx/v5/pgproto3/authentication_md5_password.go
new file mode 100644
index 0000000..854c640
--- /dev/null
+++ b/vendor/github.com/jackc/pgx/v5/pgproto3/authentication_md5_password.go
@@ -0,0 +1,76 @@
+package pgproto3
+
+import (
+	"encoding/binary"
+	"encoding/json"
+	"errors"
+
+	"github.com/jackc/pgx/v5/internal/pgio"
+)
+
+// AuthenticationMD5Password is a message sent from the backend indicating that an MD5 hashed password is required.
+type AuthenticationMD5Password struct {
+	Salt [4]byte
+}
+
+// Backend identifies this message as sendable by the PostgreSQL backend.
+func (*AuthenticationMD5Password) Backend() {}
+
+// Backend identifies this message as an authentication response.
+func (*AuthenticationMD5Password) AuthenticationResponse() {}
+
+// Decode decodes src into dst. src must contain the complete message with the exception of the initial 1 byte message
+// type identifier and 4 byte message length.
+func (dst *AuthenticationMD5Password) Decode(src []byte) error {
+	if len(src) != 8 {
+		return errors.New("bad authentication message size")
+	}
+
+	authType := binary.BigEndian.Uint32(src)
+
+	if authType != AuthTypeMD5Password {
+		return errors.New("bad auth type")
+	}
+
+	copy(dst.Salt[:], src[4:8])
+
+	return nil
+}
+
+// Encode encodes src into dst. dst will include the 1 byte message type identifier and the 4 byte message length.
+func (src *AuthenticationMD5Password) Encode(dst []byte) ([]byte, error) {
+	dst, sp := beginMessage(dst, 'R')
+	dst = pgio.AppendUint32(dst, AuthTypeMD5Password)
+	dst = append(dst, src.Salt[:]...)
+	return finishMessage(dst, sp)
+}
+
+// MarshalJSON implements encoding/json.Marshaler.
+func (src AuthenticationMD5Password) MarshalJSON() ([]byte, error) {
+	return json.Marshal(struct {
+		Type string
+		Salt [4]byte
+	}{
+		Type: "AuthenticationMD5Password",
+		Salt: src.Salt,
+	})
+}
+
+// UnmarshalJSON implements encoding/json.Unmarshaler.
+func (dst *AuthenticationMD5Password) UnmarshalJSON(data []byte) error {
+	// Ignore null, like in the main JSON package.
+	if string(data) == "null" {
+		return nil
+	}
+
+	var msg struct {
+		Type string
+		Salt [4]byte
+	}
+	if err := json.Unmarshal(data, &msg); err != nil {
+		return err
+	}
+
+	dst.Salt = msg.Salt
+	return nil
+}