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36 lines
1.1 KiB
Go
36 lines
1.1 KiB
Go
package models
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import (
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"fmt"
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"time"
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)
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const (
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MessageDataMaxSize = 512000
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MessageSignatureMaxSize = 10000
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)
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type Message struct {
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ID uint `gorm:"primary_key" json:"id"`
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CreatedAt time.Time `json:"created_at"`
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UpdatedAt time.Time `json:"updated_at"`
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DeletedAt *time.Time `sql:"index" json:"deleted_at"`
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SeenAt *time.Time `json:"seen_at" sql:"index"`
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SenderID uint `json:"-"`
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ReceiverID uint `json:"-"`
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SenderName string `gorm:"size:255" json:"sender_name"`
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Sender string `gorm:"size:255;not null" json:"sender"`
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Data string `gorm:"size:512000;not null" json:"-"`
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Signature string `gorm:"size:10000;not null" json:"-"`
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}
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func ValidateMessage(data, signature string) error {
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// validate max sizes
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if dataSize := len(data); dataSize > MessageDataMaxSize {
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return fmt.Errorf("max message data size is %d", MessageDataMaxSize)
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} else if sigSize := len(signature); sigSize > MessageSignatureMaxSize {
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return fmt.Errorf("max message signature size is %d", MessageSignatureMaxSize)
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}
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return nil
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}
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