Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Restrict email address validation (#17688) #19085

Merged
merged 1 commit into from
Mar 14, 2022
Merged

Restrict email address validation (#17688) #19085

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
34 changes: 30 additions & 4 deletions models/user/email_address.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@ import (
"errors"
"fmt"
"net/mail"
"regexp"
"strings"

"code.gitea.io/gitea/models/db"
Expand All @@ -21,10 +22,23 @@ import (
"xorm.io/builder"
)

var (
// ErrEmailNotActivated e-mail address has not been activated error
ErrEmailNotActivated = errors.New("E-mail address has not been activated")
)
// ErrEmailNotActivated e-mail address has not been activated error
var ErrEmailNotActivated = errors.New("e-mail address has not been activated")

// ErrEmailCharIsNotSupported e-mail address contains unsupported character
type ErrEmailCharIsNotSupported struct {
Email string
}

// IsErrEmailCharIsNotSupported checks if an error is an ErrEmailCharIsNotSupported
func IsErrEmailCharIsNotSupported(err error) bool {
_, ok := err.(ErrEmailCharIsNotSupported)
return ok
}

func (err ErrEmailCharIsNotSupported) Error() string {
return fmt.Sprintf("e-mail address contains unsupported character [email: %s]", err.Email)
}

// ErrEmailInvalid represents an error where the email address does not comply with RFC 5322
type ErrEmailInvalid struct {
Expand Down Expand Up @@ -108,12 +122,24 @@ func (email *EmailAddress) BeforeInsert() {
}
}

var emailRegexp = regexp.MustCompile("^[a-zA-Z0-9.!#$%&'*+-/=?^_`{|}~]*@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$")

// ValidateEmail check if email is a allowed address
func ValidateEmail(email string) error {
if len(email) == 0 {
return nil
}

if !emailRegexp.MatchString(email) {
return ErrEmailCharIsNotSupported{email}
}

if !(email[0] >= 'a' && email[0] <= 'z') &&
!(email[0] >= 'A' && email[0] <= 'Z') &&
!(email[0] >= '0' && email[0] <= '9') {
return ErrEmailInvalid{email}
}

if _, err := mail.ParseAddress(email); err != nil {
return ErrEmailInvalid{email}
}
Expand Down
55 changes: 55 additions & 0 deletions models/user/email_address_test.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -252,3 +252,58 @@ func TestListEmails(t *testing.T) {
assert.Len(t, emails, 5)
assert.Greater(t, count, int64(len(emails)))
}

func TestEmailAddressValidate(t *testing.T) {
kases := map[string]error{
"abc@gmail.com": nil,
"132@hotmail.com": nil,
"1-3-2@test.org": nil,
"1.3.2@test.org": nil,
"a_123@test.org.cn": nil,
`first.last@iana.org`: nil,
`first!last@iana.org`: nil,
`first#last@iana.org`: nil,
`first$last@iana.org`: nil,
`first%last@iana.org`: nil,
`first&last@iana.org`: nil,
`first'last@iana.org`: nil,
`first*last@iana.org`: nil,
`first+last@iana.org`: nil,
`first/last@iana.org`: nil,
`first=last@iana.org`: nil,
`first?last@iana.org`: nil,
`first^last@iana.org`: nil,
"first`last@iana.org": nil,
`first{last@iana.org`: nil,
`first|last@iana.org`: nil,
`first}last@iana.org`: nil,
`first~last@iana.org`: nil,
`first;last@iana.org`: ErrEmailCharIsNotSupported{`first;last@iana.org`},
".233@qq.com": ErrEmailInvalid{".233@qq.com"},
"!233@qq.com": ErrEmailInvalid{"!233@qq.com"},
"#233@qq.com": ErrEmailInvalid{"#233@qq.com"},
"$233@qq.com": ErrEmailInvalid{"$233@qq.com"},
"%233@qq.com": ErrEmailInvalid{"%233@qq.com"},
"&233@qq.com": ErrEmailInvalid{"&233@qq.com"},
"'233@qq.com": ErrEmailInvalid{"'233@qq.com"},
"*233@qq.com": ErrEmailInvalid{"*233@qq.com"},
"+233@qq.com": ErrEmailInvalid{"+233@qq.com"},
"/233@qq.com": ErrEmailInvalid{"/233@qq.com"},
"=233@qq.com": ErrEmailInvalid{"=233@qq.com"},
"?233@qq.com": ErrEmailInvalid{"?233@qq.com"},
"^233@qq.com": ErrEmailInvalid{"^233@qq.com"},
"`233@qq.com": ErrEmailInvalid{"`233@qq.com"},
"{233@qq.com": ErrEmailInvalid{"{233@qq.com"},
"|233@qq.com": ErrEmailInvalid{"|233@qq.com"},
"}233@qq.com": ErrEmailInvalid{"}233@qq.com"},
"~233@qq.com": ErrEmailInvalid{"~233@qq.com"},
";233@qq.com": ErrEmailCharIsNotSupported{";233@qq.com"},
"Foo <foo@bar.com>": ErrEmailCharIsNotSupported{"Foo <foo@bar.com>"},
string([]byte{0xE2, 0x84, 0xAA}): ErrEmailCharIsNotSupported{string([]byte{0xE2, 0x84, 0xAA})},
}
for kase, err := range kases {
t.Run(kase, func(t *testing.T) {
assert.EqualValues(t, err, ValidateEmail(kase))
})
}
}
14 changes: 9 additions & 5 deletions models/user/user.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -644,6 +644,15 @@ func CreateUser(u *User, overwriteDefault ...*CreateUserOverwriteOptions) (err e
u.Visibility = overwriteDefault[0].Visibility
}

// validate data
if err := validateUser(u); err != nil {
return err
}

if err := ValidateEmail(u.Email); err != nil {
return err
}

ctx, committer, err := db.TxContext()
if err != nil {
return err
Expand All @@ -652,11 +661,6 @@ func CreateUser(u *User, overwriteDefault ...*CreateUserOverwriteOptions) (err e

sess := db.GetEngine(ctx)

// validate data
if err := validateUser(u); err != nil {
return err
}

isExist, err := isUserExist(sess, 0, u.Name)
if err != nil {
return err
Expand Down
2 changes: 1 addition & 1 deletion models/user/user_test.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -232,7 +232,7 @@ func TestCreateUserInvalidEmail(t *testing.T) {

err := CreateUser(user)
assert.Error(t, err)
assert.True(t, IsErrEmailInvalid(err))
assert.True(t, IsErrEmailCharIsNotSupported(err))
}

func TestCreateUserEmailAlreadyUsed(t *testing.T) {
Expand Down
5 changes: 4 additions & 1 deletion routers/api/v1/admin/user.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -119,6 +119,7 @@ func CreateUser(ctx *context.APIContext) {
user_model.IsErrEmailAlreadyUsed(err) ||
db.IsErrNameReserved(err) ||
db.IsErrNameCharsNotAllowed(err) ||
user_model.IsErrEmailCharIsNotSupported(err) ||
user_model.IsErrEmailInvalid(err) ||
db.IsErrNamePatternNotAllowed(err) {
ctx.Error(http.StatusUnprocessableEntity, "", err)
Expand Down Expand Up @@ -265,7 +266,9 @@ func EditUser(ctx *context.APIContext) {
}

if err := user_model.UpdateUser(u, emailChanged); err != nil {
if user_model.IsErrEmailAlreadyUsed(err) || user_model.IsErrEmailInvalid(err) {
if user_model.IsErrEmailAlreadyUsed(err) ||
user_model.IsErrEmailCharIsNotSupported(err) ||
user_model.IsErrEmailInvalid(err) {
ctx.Error(http.StatusUnprocessableEntity, "", err)
} else {
ctx.Error(http.StatusInternalServerError, "UpdateUser", err)
Expand Down
3 changes: 2 additions & 1 deletion routers/api/v1/user/email.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -80,7 +80,8 @@ func AddEmail(ctx *context.APIContext) {
if err := user_model.AddEmailAddresses(emails); err != nil {
if user_model.IsErrEmailAlreadyUsed(err) {
ctx.Error(http.StatusUnprocessableEntity, "", "Email address has been used: "+err.(user_model.ErrEmailAlreadyUsed).Email)
} else if user_model.IsErrEmailInvalid(err) {
} else if user_model.IsErrEmailCharIsNotSupported(err) ||
user_model.IsErrEmailInvalid(err) {
errMsg := fmt.Sprintf("Email address %s invalid", err.(user_model.ErrEmailInvalid).Email)
ctx.Error(http.StatusUnprocessableEntity, "", errMsg)
} else {
Expand Down
6 changes: 5 additions & 1 deletion routers/web/admin/users.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -171,6 +171,9 @@ func NewUserPost(ctx *context.Context) {
case user_model.IsErrEmailAlreadyUsed(err):
ctx.Data["Err_Email"] = true
ctx.RenderWithErr(ctx.Tr("form.email_been_used"), tplUserNew, &form)
case user_model.IsErrEmailCharIsNotSupported(err):
ctx.Data["Err_Email"] = true
ctx.RenderWithErr(ctx.Tr("form.email_invalid"), tplUserNew, &form)
case user_model.IsErrEmailInvalid(err):
ctx.Data["Err_Email"] = true
ctx.RenderWithErr(ctx.Tr("form.email_invalid"), tplUserNew, &form)
Expand Down Expand Up @@ -386,7 +389,8 @@ func EditUserPost(ctx *context.Context) {
if user_model.IsErrEmailAlreadyUsed(err) {
ctx.Data["Err_Email"] = true
ctx.RenderWithErr(ctx.Tr("form.email_been_used"), tplUserEdit, &form)
} else if user_model.IsErrEmailInvalid(err) {
} else if user_model.IsErrEmailCharIsNotSupported(err) ||
user_model.IsErrEmailInvalid(err) {
ctx.Data["Err_Email"] = true
ctx.RenderWithErr(ctx.Tr("form.email_invalid"), tplUserEdit, &form)
} else {
Expand Down
3 changes: 3 additions & 0 deletions routers/web/auth/auth.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -573,6 +573,9 @@ func createUserInContext(ctx *context.Context, tpl base.TplName, form interface{
case user_model.IsErrEmailAlreadyUsed(err):
ctx.Data["Err_Email"] = true
ctx.RenderWithErr(ctx.Tr("form.email_been_used"), tpl, form)
case user_model.IsErrEmailCharIsNotSupported(err):
ctx.Data["Err_Email"] = true
ctx.RenderWithErr(ctx.Tr("form.email_invalid"), tpl, form)
case user_model.IsErrEmailInvalid(err):
ctx.Data["Err_Email"] = true
ctx.RenderWithErr(ctx.Tr("form.email_invalid"), tpl, form)
Expand Down
3 changes: 2 additions & 1 deletion routers/web/user/setting/account.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -188,7 +188,8 @@ func EmailPost(ctx *context.Context) {

ctx.RenderWithErr(ctx.Tr("form.email_been_used"), tplSettingsAccount, &form)
return
} else if user_model.IsErrEmailInvalid(err) {
} else if user_model.IsErrEmailCharIsNotSupported(err) ||
user_model.IsErrEmailInvalid(err) {
loadAccountData(ctx)

ctx.RenderWithErr(ctx.Tr("form.email_invalid"), tplSettingsAccount, &form)
Expand Down