base64Captcha

package module

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Versions in this module

v1

v1.3.8

Jan 9, 2025

v1.3.7

Jan 9, 2025

v1.3.6

Dec 8, 2023

Changes in this version

type DriverDigit

+ func (d *DriverDigit) GenerateSpecificIdQuestionAnswer(mId string) (id, q, a string)

v1.3.5

Jul 19, 2021 GO-2023-2386

GO-2023-2386: Captcha verification bypass in github.com/mojocn/base64Captcha

Changes in this version

+ var DefaultEmbeddedFonts = NewEmbeddedFontsStorage(defaultEmbeddedFontsFS)

+ type EmbeddedFontsStorage struct

+ func NewEmbeddedFontsStorage(fs embed.FS) *EmbeddedFontsStorage

+ func (s *EmbeddedFontsStorage) LoadFontByName(name string) *truetype.Font

+ func (s *EmbeddedFontsStorage) LoadFontsByNames(assetFontNames []string) []*truetype.Font

+ type FontsStorage interface

+ LoadFontByName func(name string) *truetype.Font

+ LoadFontsByNames func(assetFontNames []string) []*truetype.Font

v1.3.4

Apr 14, 2021 GO-2023-2386

GO-2023-2386: Captcha verification bypass in github.com/mojocn/base64Captcha

v1.3.3

Apr 12, 2021 GO-2023-2386

GO-2023-2386: Captcha verification bypass in github.com/mojocn/base64Captcha

v1.3.2

Apr 12, 2021 GO-2023-2386

GO-2023-2386: Captcha verification bypass in github.com/mojocn/base64Captcha

Changes in this version

+ type StoreSyncMap struct

+ func NewStoreSyncMap(liveTime time.Duration) *StoreSyncMap

+ func (s StoreSyncMap) Get(id string, clear bool) string

+ func (s StoreSyncMap) Set(id string, value string)

+ func (s StoreSyncMap) Verify(id, answer string, clear bool) bool

v1.3.1

Mar 20, 2020 GO-2023-2386

GO-2023-2386: Captcha verification bypass in github.com/mojocn/base64Captcha

v1.3.0

Jan 13, 2020 GO-2023-2386

GO-2023-2386: Captcha verification bypass in github.com/mojocn/base64Captcha

v1.2.2

Dec 3, 2019 GO-2023-2386

GO-2023-2386: Captcha verification bypass in github.com/mojocn/base64Captcha

Changes in this version

+ const CaptchaComplexHigh

+ const CaptchaComplexLower

+ const CaptchaComplexMedium

+ const CaptchaModeAlphabet

+ const CaptchaModeArithmetic

+ const CaptchaModeChinese

+ const CaptchaModeNumber

+ const CaptchaModeNumberAlphabet

+ const CaptchaModeUseSequencedCharacters

+ const DefaultLen

+ const DotCount

+ const FileExtCaptchaAudio

+ const FileExtCaptchaImage

+ const MaxSkew

+ const MimeTypeCaptchaAudio

+ const MimeTypeCaptchaImage

+ func CaptchaWriteToBase64Encoding(cap CaptchaInterface) string

+ func CaptchaWriteToFile(cap CaptchaInterface, outputDir, fileName, fileExt string) error

+ func SetCustomStore(s store.Store)

+ func VerifyCaptcha(identifier, verifyValue string) bool

+ func VerifyCaptchaAndIsClear(identifier, verifyValue string, isClear bool) bool

+ type Audio struct

+ func EngineAudioCreate(id string, config ConfigAudio) *Audio

+ func (a *Audio) BinaryEncoding() []byte

+ func (a *Audio) WriteTo(w io.Writer) (n int64, err error)

+ type CaptchaImageChar struct

+ Complex int

+ func EngineCharCreate(config ConfigCharacter) *CaptchaImageChar

+ func (captcha *CaptchaImageChar) BinaryEncoding() []byte

+ func (captcha *CaptchaImageChar) WriteTo(w io.Writer) (int64, error)

+ type CaptchaImageDigit struct

+ func EngineDigitsCreate(id string, config ConfigDigit) *CaptchaImageDigit

+ func (m *CaptchaImageDigit) BinaryEncoding() []byte

+ func (m *CaptchaImageDigit) WriteTo(w io.Writer) (int64, error)

+ type CaptchaInterface interface

+ BinaryEncoding func() []byte

+ WriteTo func(w io.Writer) (n int64, err error)

+ func GenerateCaptcha(idKey string, configuration interface{}) (id string, captchaInstance CaptchaInterface)

+ type CaptchaItem struct

+ Content string

+ ImageHeight int

+ ImageWidth int

+ VerifyValue string

+ type ConfigAudio struct

+ CaptchaLen int

+ Language string

+ type ConfigCharacter struct

+ BgColor *color.RGBA

+ BgHashColor string

+ CaptchaLen int

+ ChineseCharacterSource string

+ ComplexOfNoiseDot int

+ ComplexOfNoiseText int

+ Height int

+ IsShowHollowLine bool

+ IsShowNoiseDot bool

+ IsShowNoiseText bool

+ IsShowSineLine bool

+ IsShowSlimeLine bool

+ IsUseSimpleFont bool

+ Mode int

+ SequencedCharacters []string

+ UseCJKFonts bool

+ Width int

+ type ConfigDigit struct

+ CaptchaLen int

+ DotCount int

+ Height int

+ MaxSkew float64

+ Width int

v1.2.1

Dec 13, 2019 GO-2023-2386

GO-2023-2386: Captcha verification bypass in github.com/mojocn/base64Captcha

Changes in this version

+ const Emoji

+ const MimeTypeAudio

+ const MimeTypeImage

+ const OptionShowHollowLine

+ const OptionShowSineLine

+ const OptionShowSlimeLine

+ const TxtAlphabet

+ const TxtChineseCharaters

+ const TxtNumbers

+ const TxtSimpleCharaters

+ var DefaultDriverAudio = NewDriverAudio(6, "en")

+ var DefaultDriverDigit = NewDriverDigit(80, 240, 5, 0.7, 80)

+ var DefaultMemStore = NewMemoryStore(GCLimitNumber, Expiration)

+ var Expiration = 10 * time.Minute

+ var GCLimitNumber = 10240

+ func Asset(name string) ([]byte, error)

+ func AssetDigest(name string) ([sha256.Size]byte, error)

+ func AssetDir(name string) ([]string, error)

+ func AssetInfo(name string) (os.FileInfo, error)

+ func AssetNames() []string

+ func AssetString(name string) (string, error)

+ func Digests() (map[string][sha256.Size]byte, error)

+ func MustAsset(name string) []byte

+ func MustAssetString(name string) string

+ func RandColor() color.RGBA

+ func RandDeepColor() color.RGBA

+ func RandLightColor() color.RGBA

+ func RandText(size int, sourceChars string) string

+ func RandomId() string

+ func RestoreAsset(dir, name string) error

+ func RestoreAssets(dir, name string) error

+ type Captcha struct

+ Driver Driver

+ Store Store

+ func NewCaptcha(driver Driver, store Store) *Captcha

+ func (c *Captcha) Generate() (id, b64s string, err error)

+ func (c *Captcha) Verify(id, answer string, clear bool) (match bool)

+ type Driver interface

+ DrawCaptcha func(content string) (item Item, err error)

+ GenerateIdQuestionAnswer func() (id, q, a string)

+ type DriverAudio struct

+ Language string

+ Length int

+ func NewDriverAudio(length int, language string) *DriverAudio

+ func (d *DriverAudio) DrawCaptcha(content string) (item Item, err error)

+ func (d *DriverAudio) GenerateIdQuestionAnswer() (id, q, a string)

+ type DriverChinese struct

+ BgColor *color.RGBA

+ Fonts []string

+ Height int

+ Length int

+ NoiseCount int

+ ShowLineOptions int

+ Source string

+ Width int

+ func NewDriverChinese(height int, width int, noiseCount int, showLineOptions int, length int, ...) *DriverChinese

+ func (d *DriverChinese) ConvertFonts() *DriverChinese

+ func (d *DriverChinese) DrawCaptcha(content string) (item Item, err error)

+ func (d *DriverChinese) GenerateIdQuestionAnswer() (id, content, answer string)

+ type DriverDigit struct

+ DotCount int

+ Height int

+ Length int

+ MaxSkew float64

+ Width int

+ func NewDriverDigit(height int, width int, length int, maxSkew float64, dotCount int) *DriverDigit

+ func (d *DriverDigit) DrawCaptcha(content string) (item Item, err error)

+ func (d *DriverDigit) GenerateIdQuestionAnswer() (id, q, a string)

+ type DriverLanguage struct

+ BgColor *color.RGBA

+ Fonts []*truetype.Font

+ Height int

+ LanguageCode string

+ Length int

+ NoiseCount int

+ ShowLineOptions int

+ Width int

+ func NewDriverLanguage(height int, width int, noiseCount int, showLineOptions int, length int, ...) *DriverLanguage

+ func (d *DriverLanguage) DrawCaptcha(content string) (item Item, err error)

+ func (d *DriverLanguage) GenerateIdQuestionAnswer() (id, content, answer string)

+ type DriverMath struct

+ BgColor *color.RGBA

+ Fonts []string

+ Height int

+ NoiseCount int

+ ShowLineOptions int

+ Width int

+ func NewDriverMath(height int, width int, noiseCount int, showLineOptions int, ...) *DriverMath

+ func (d *DriverMath) ConvertFonts() *DriverMath

+ func (d *DriverMath) DrawCaptcha(question string) (item Item, err error)

+ func (d *DriverMath) GenerateIdQuestionAnswer() (id, question, answer string)

+ type DriverString struct

+ BgColor *color.RGBA

+ Fonts []string

+ Height int

+ Length int

+ NoiseCount int

+ ShowLineOptions int

+ Source string

+ Width int

+ func NewDriverString(height int, width int, noiseCount int, showLineOptions int, length int, ...) *DriverString

+ func (d *DriverString) ConvertFonts() *DriverString

+ func (d *DriverString) DrawCaptcha(content string) (item Item, err error)

+ func (d *DriverString) GenerateIdQuestionAnswer() (id, content, answer string)

+ type Item interface

+ EncodeB64string func() string

+ WriteTo func(w io.Writer) (n int64, err error)

+ type ItemAudio struct

+ func (a *ItemAudio) EncodeB64string() string

+ func (a *ItemAudio) WriteTo(w io.Writer) (n int64, err error)

+ type ItemChar struct

+ func NewItemChar(w int, h int, bgColor color.RGBA) *ItemChar

+ func (item *ItemChar) BinaryEncoding() []byte

+ func (item *ItemChar) EncodeB64string() string

+ func (item *ItemChar) WriteTo(w io.Writer) (int64, error)

+ type ItemDigit struct

+ func NewItemDigit(width int, height int, dotCount int, maxSkew float64) *ItemDigit

+ func (m *ItemDigit) EncodeB64string() string

+ func (m *ItemDigit) EncodeBinary() []byte

+ func (m *ItemDigit) WriteTo(w io.Writer) (int64, error)

+ type Store interface

+ Get func(id string, clear bool) string

+ Set func(id string, value string)

+ Verify func(id, answer string, clear bool) bool

+ func NewMemoryStore(collectNum int, expiration time.Duration) Store

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