mirror of
https://github.com/pocket-id/pocket-id.git
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26 lines
843 B
Go
26 lines
843 B
Go
package dto
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import (
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"github.com/gin-gonic/gin/binding"
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"github.com/go-playground/validator/v10"
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"log"
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"regexp"
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)
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var validateUsername validator.Func = func(fl validator.FieldLevel) bool {
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// [a-zA-Z0-9] : The username must start with an alphanumeric character
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// [a-zA-Z0-9_.@-]* : The rest of the username can contain alphanumeric characters, dots, underscores, hyphens, and "@" symbols
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// [a-zA-Z0-9]$ : The username must end with an alphanumeric character
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regex := "^[a-zA-Z0-9][a-zA-Z0-9_.@-]*[a-zA-Z0-9]$"
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matched, _ := regexp.MatchString(regex, fl.Field().String())
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return matched
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}
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func init() {
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if v, ok := binding.Validator.Engine().(*validator.Validate); ok {
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if err := v.RegisterValidation("username", validateUsername); err != nil {
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log.Fatalf("Failed to register custom validation: %v", err)
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}
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}
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}
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