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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| Enhancement: Add the password policies | ||
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| Add the password policies OCIS-3767 | ||
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| https://github.com/cs3org/reva/pull/4147 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,152 @@ | ||
| package password | ||
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| import ( | ||
| "errors" | ||
| "fmt" | ||
| "regexp" | ||
| "strings" | ||
| "unicode/utf8" | ||
| ) | ||
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| var _defaultSpecialCharacters = "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~" | ||
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| // Validator describes the interface providing a password Validate method | ||
| type Validator interface { | ||
| Validate(str string) error | ||
| } | ||
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| // Policies represents a password validation rules | ||
| type Policies struct { | ||
| minCharacters int | ||
| minLowerCaseCharacters int | ||
| minUpperCaseCharacters int | ||
| minDigits int | ||
| minSpecialCharacters int | ||
| allowedSpecialCharacters string | ||
| digits *regexp.Regexp | ||
| specialCharacters *regexp.Regexp | ||
| } | ||
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| // NewPasswordPolicies returns a new NewPasswordPolicies instance | ||
| func NewPasswordPolicies(minCharacters, minLowerCaseCharacters, minUpperCaseCharacters, minDigits, minSpecialCharacters int, | ||
| allowedSpecialCharacters string) (Validator, error) { | ||
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| digits := regexp.MustCompile("[0-9]") | ||
| if len(allowedSpecialCharacters) > 0 { | ||
| _defaultSpecialCharacters = allowedSpecialCharacters | ||
| } | ||
| specialCharacters, err := regexp.Compile("[" + regexp.QuoteMeta(_defaultSpecialCharacters) + "]") | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return &Policies{ | ||
| minCharacters: minCharacters, | ||
| minLowerCaseCharacters: minLowerCaseCharacters, | ||
| minUpperCaseCharacters: minUpperCaseCharacters, | ||
| minDigits: minDigits, | ||
| minSpecialCharacters: minSpecialCharacters, | ||
| allowedSpecialCharacters: allowedSpecialCharacters, | ||
| digits: digits, | ||
| specialCharacters: specialCharacters, | ||
| }, nil | ||
| } | ||
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| // Validate implements a password validation regarding the policy | ||
| func (s Policies) Validate(str string) error { | ||
| var allErr error | ||
| if !utf8.ValidString(str) { | ||
| return fmt.Errorf("the password contains invalid characters") | ||
| } | ||
| err := s.validateCharacters(str) | ||
| if err != nil { | ||
| allErr = errors.Join(allErr, err) | ||
| } | ||
| err = s.validateLowerCase(str) | ||
| if err != nil { | ||
| allErr = errors.Join(allErr, err) | ||
| } | ||
| err = s.validateUpperCase(str) | ||
| if err != nil { | ||
| allErr = errors.Join(allErr, err) | ||
| } | ||
| err = s.validateDigits(str) | ||
| if err != nil { | ||
| allErr = errors.Join(allErr, err) | ||
| } | ||
| err = s.validateSpecialCharacters(str) | ||
| if err != nil { | ||
| allErr = errors.Join(allErr, err) | ||
| } | ||
| if allErr != nil { | ||
| return allErr | ||
| } | ||
| return nil | ||
| } | ||
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| func (s Policies) validateCharacters(str string) error { | ||
| if s.count(str) < s.minCharacters { | ||
| return fmt.Errorf("at least %d characters are required", s.minCharacters) | ||
| } | ||
| return nil | ||
| } | ||
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| func (s Policies) validateLowerCase(str string) error { | ||
| if s.countLowerCaseCharacters(str) < s.minLowerCaseCharacters { | ||
| return fmt.Errorf("at least %d lowercase letters are required", s.minLowerCaseCharacters) | ||
| } | ||
| return nil | ||
| } | ||
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| func (s Policies) validateUpperCase(str string) error { | ||
| if s.countUpperCaseCharacters(str) < s.minUpperCaseCharacters { | ||
| return fmt.Errorf("at least %d uppercase letters are required", s.minUpperCaseCharacters) | ||
| } | ||
| return nil | ||
| } | ||
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| func (s Policies) validateDigits(str string) error { | ||
| if s.countDigits(str) < s.minDigits { | ||
| return fmt.Errorf("at least %d numbers are required", s.minDigits) | ||
| } | ||
| return nil | ||
| } | ||
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| func (s Policies) validateSpecialCharacters(str string) error { | ||
| if s.countSpecialCharacters(str) < s.minSpecialCharacters { | ||
| return fmt.Errorf("at least %d special characters are required. %s", s.minSpecialCharacters, s.allowedSpecialCharacters) | ||
| } | ||
| return nil | ||
| } | ||
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| func (s Policies) count(str string) int { | ||
| return utf8.RuneCount([]byte(str)) | ||
| } | ||
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| func (s Policies) countLowerCaseCharacters(str string) int { | ||
| var count int | ||
| for _, c := range str { | ||
| if strings.ToLower(string(c)) == string(c) && strings.ToUpper(string(c)) != string(c) { | ||
| count++ | ||
| } | ||
| } | ||
| return count | ||
| } | ||
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| func (s Policies) countUpperCaseCharacters(str string) int { | ||
| var count int | ||
| for _, c := range str { | ||
| if strings.ToUpper(string(c)) == string(c) && strings.ToLower(string(c)) != string(c) { | ||
| count++ | ||
| } | ||
| } | ||
| return count | ||
| } | ||
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| func (s Policies) countDigits(str string) int { | ||
| return len(s.digits.FindAllStringIndex(str, -1)) | ||
| } | ||
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| func (s Policies) countSpecialCharacters(str string) int { | ||
| res := s.specialCharacters.FindAllStringIndex(str, -1) | ||
| return len(res) | ||
| } |
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