65 lines
1.9 KiB
Go
65 lines
1.9 KiB
Go
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package protocol
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import (
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"hash-of-wisdom/internal/pow/challenge"
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"hash-of-wisdom/internal/quotes"
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)
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// MessageType represents the type of protocol message
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type MessageType byte
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const (
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ChallengeRequest MessageType = 0x01
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ChallengeResponse MessageType = 0x02
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SolutionRequest MessageType = 0x03
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QuoteResponse MessageType = 0x04
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ErrorResponse MessageType = 0x05
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)
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// Message represents a protocol message with type and payload
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type Message struct {
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Type MessageType
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Payload []byte
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}
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// ChallengeRequestPayload is empty (no payload for challenge requests)
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type ChallengeRequestPayload struct{}
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// ChallengeResponsePayload is the direct challenge object (not wrapped)
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type ChallengeResponsePayload challenge.Challenge
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// SolutionRequestPayload contains the client's solution attempt
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type SolutionRequestPayload struct {
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Challenge challenge.Challenge `json:"challenge"`
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Nonce uint64 `json:"nonce"`
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}
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// QuoteResponsePayload is the direct quote object (not wrapped)
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type QuoteResponsePayload quotes.Quote
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// ErrorResponsePayload contains error information
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type ErrorResponsePayload struct {
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Code string `json:"code"`
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Message string `json:"message"`
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RetryAfter int `json:"retry_after,omitempty"`
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Details map[string]string `json:"details,omitempty"`
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}
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// Error codes as defined in protocol specification
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const (
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ErrMalformedMessage = "MALFORMED_MESSAGE"
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ErrInvalidChallenge = "INVALID_CHALLENGE"
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ErrInvalidSolution = "INVALID_SOLUTION"
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ErrExpiredChallenge = "EXPIRED_CHALLENGE"
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ErrRateLimited = "RATE_LIMITED"
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ErrServerError = "SERVER_ERROR"
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ErrTooManyConnections = "TOO_MANY_CONNECTIONS"
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ErrDifficultyTooHigh = "DIFFICULTY_TOO_HIGH"
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)
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// Protocol constants
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const (
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MaxPayloadSize = 8 * 1024 // 8KB maximum payload size
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HeaderSize = 5 // 1 byte type + 4 bytes length
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)
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