users.go
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users.go
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	package writefreely

	import (
	"time"

	"github.com/guregu/null/zero"
	"github.com/writeas/web-core/data"
	"github.com/writeas/web-core/log"
	)

	type (
	// User is a consistent user object in the database and all contexts (auth
	// and non-auth) in the API.
	User struct {
	ID int64 `json:"-"`
	Username string `json:"username"`
	HashedPass []byte `json:"-"`
	HasPass bool `json:"has_pass"`
	Email zero.String `json:"email"`
	Created time.Time `json:"created"`

	clearEmail string `json:"email"`
	}
	)

	// EmailClear decrypts and returns the user's email, caching it in the user
	// object.
	func (u User) EmailClear(keys keychain) string {
	if u.clearEmail != "" {
	return u.clearEmail
	}

	if u.Email.Valid && u.Email.String != "" {
	email, err := data.Decrypt(keys.emailKey, []byte(u.Email.String))
	if err != nil {
	log.Error("Error decrypting user email: %v", err)
	} else {
	u.clearEmail = string(email)
	return u.clearEmail
	}
	}
	return ""
	}

	// Cookie strips down an AuthUser to contain only information necessary for
	// cookies.
	func (u User) Cookie() *User {
	u.HashedPass = []byte{}

	return &u
	}