core

package

v0.0.0-...-f6143f5 Latest Latest Go to latest Published: May 23, 2022 License: MIT Imports: 27 Imported by: 0

Details

Valid go.mod file

The Go module system was introduced in Go 1.11 and is the official dependency management solution for Go.
Redistributable license

Redistributable licenses place minimal restrictions on how software can be used, modified, and redistributed.
Tagged version

Modules with tagged versions give importers more predictable builds.
Stable version

When a project reaches major version v1 it is considered stable.
Learn more about best practices

Repository

github.com/piumaio/piuma

Links

Open Source Insights

Documentation ¶

Index ¶

Constants
Variables
func BuildResponse(w http.ResponseWriter, imagePath string, contentType string) error
func CompressByDSSIM(original *image.Image, newImgFile io.Writer, handler *ImageHandler, ...) error
func Dispatch(request *http.Request, response *http.Response, ...) (string, string, error)
func DownloadImage(originalUrl string, cacheDelay int) (*http.Response, error)
func GetAllImageHandlers() map[string]ImageHandler
func GetAllImageHandlersByExtension() map[string]ImageHandler
func Optimize(response *http.Response, imageParameters *ImageParameters, options *Options) (string, string, error)
func RemoveImageHandlerFromAutoConf(autoConfPath string, imageType string) error
func StartHttpCachePurge(checkIntervalSeconds int) chan bool
type AvifHandler
- func (a *AvifHandler) Decode(reader io.Reader) (image.Image, error)
- func (a *AvifHandler) Encode(newImgFile io.Writer, newImage image.Image, quality uint) error
- func (a *AvifHandler) ImageExtension() string
- func (a *AvifHandler) ImageType() string
- func (a *AvifHandler) SupportsTransparency() bool
type ImageHandler
- func AutoImageHandler(clientRequest *http.Request, imageResponse *http.Response, autoConfPath string, ...) (ImageHandler, error)
- func NewImageHandler(imageType string) (ImageHandler, error)
- func NewImageHandlerByBytes(buffer io.Reader) (ImageHandler, error)
- func NewImageHandlerByExtension(extension string) (ImageHandler, error)
type ImageParameters
- func Parser(name string) (ImageParameters, error)
- func (imParams *ImageParameters) GenerateHash(response *http.Response) string
- func (imParams *ImageParameters) GetUrlString() string
type JPEGHandler
- func (j *JPEGHandler) Decode(reader io.Reader) (image.Image, error)
- func (j *JPEGHandler) Encode(newImgFile io.Writer, newImage image.Image, quality uint) error
- func (j *JPEGHandler) ImageExtension() string
- func (j *JPEGHandler) ImageType() string
- func (j *JPEGHandler) SupportsTransparency() bool
type OptimizationResult
type Options
type PNGHandler
- func (p *PNGHandler) Decode(reader io.Reader) (image.Image, error)
- func (p *PNGHandler) Encode(newImgFile io.Writer, newImage image.Image, quality uint) error
- func (p *PNGHandler) ImageExtension() string
- func (p *PNGHandler) ImageType() string
- func (p *PNGHandler) SupportsTransparency() bool
type WebPHandler
- func (w *WebPHandler) Decode(reader io.Reader) (image.Image, error)
- func (w *WebPHandler) Encode(newImgFile io.Writer, newImage image.Image, quality uint) error
- func (w *WebPHandler) ImageExtension() string
- func (w *WebPHandler) ImageType() string
- func (w *WebPHandler) SupportsTransparency() bool
type WebPLosslessHandler
- func (w *WebPLosslessHandler) Encode(newImgFile io.Writer, newImage image.Image, quality uint) error
- func (w *WebPLosslessHandler) ImageExtension() string
type WorkerManager
- func NewWorkerManager() *WorkerManager
- func (w *WorkerManager) Close()
- func (w *WorkerManager) Dispatch(response *http.Response, imageParameters *ImageParameters, options *Options) chan output
- func (w *WorkerManager) Run()

Constants ¶

View Source

const MaxIterations = 4

Variables ¶

View Source

var FileMutex sync.Map

View Source

var HttpCacheMutex sync.Map

Functions ¶

func BuildResponse ¶

func BuildResponse(w http.ResponseWriter, imagePath string, contentType string) error

func CompressByDSSIM ¶

func CompressByDSSIM(original *image.Image, newImgFile io.Writer, handler *ImageHandler, threshold float64) error

func Dispatch ¶

func Dispatch(request *http.Request, response *http.Response, imageParameters *ImageParameters, options *Options) (string, string, error)

func DownloadImage ¶

func DownloadImage(originalUrl string, cacheDelay int) (*http.Response, error)

func GetAllImageHandlers ¶

func GetAllImageHandlers() map[string]ImageHandler

func GetAllImageHandlersByExtension ¶

func GetAllImageHandlersByExtension() map[string]ImageHandler

func Optimize ¶

func Optimize(response *http.Response, imageParameters *ImageParameters, options *Options) (string, string, error)

func RemoveImageHandlerFromAutoConf ¶

func RemoveImageHandlerFromAutoConf(autoConfPath string, imageType string) error

func StartHttpCachePurge ¶

func StartHttpCachePurge(checkIntervalSeconds int) chan bool

Types ¶

type AvifHandler ¶

type AvifHandler struct {
	ImageHandler
}

func (*AvifHandler) Decode ¶

func (a *AvifHandler) Decode(reader io.Reader) (image.Image, error)

func (*AvifHandler) Encode ¶

func (a *AvifHandler) Encode(newImgFile io.Writer, newImage image.Image, quality uint) error

func (*AvifHandler) ImageExtension ¶

func (a *AvifHandler) ImageExtension() string

func (*AvifHandler) ImageType ¶

func (a *AvifHandler) ImageType() string

func (*AvifHandler) SupportsTransparency ¶

func (a *AvifHandler) SupportsTransparency() bool

type ImageHandler ¶

type ImageHandler interface {
	ImageType() string
	ImageExtension() string
	SupportsTransparency() bool
	Decode(reader io.Reader) (image.Image, error)
	Encode(newImgFile io.Writer, newImage image.Image, quality uint) error
}

func AutoImageHandler ¶

func AutoImageHandler(clientRequest *http.Request, imageResponse *http.Response, autoConfPath string, preferredConverts []string) (ImageHandler, error)

func NewImageHandler ¶

func NewImageHandler(imageType string) (ImageHandler, error)

func NewImageHandlerByBytes ¶

func NewImageHandlerByBytes(buffer io.Reader) (ImageHandler, error)

func NewImageHandlerByExtension ¶

func NewImageHandlerByExtension(extension string) (ImageHandler, error)

type ImageParameters ¶

type ImageParameters struct {
	Width           uint
	Height          uint
	Quality         uint
	AdaptiveQuality bool
	Convert         string
}

ImageParameters represents the parameters for optimization

func Parser ¶

func Parser(name string) (ImageParameters, error)

Parser extracts width, height and quality from the provided parameters.

func (*ImageParameters) GenerateHash ¶

func (imParams *ImageParameters) GenerateHash(response *http.Response) string

func (*ImageParameters) GetUrlString ¶

func (imParams *ImageParameters) GetUrlString() string

type JPEGHandler ¶

type JPEGHandler struct {
	ImageHandler
}

func (*JPEGHandler) Decode ¶

func (j *JPEGHandler) Decode(reader io.Reader) (image.Image, error)

func (*JPEGHandler) Encode ¶

func (j *JPEGHandler) Encode(newImgFile io.Writer, newImage image.Image, quality uint) error

func (*JPEGHandler) ImageExtension ¶

func (j *JPEGHandler) ImageExtension() string

func (*JPEGHandler) ImageType ¶

func (j *JPEGHandler) ImageType() string

func (*JPEGHandler) SupportsTransparency ¶

func (j *JPEGHandler) SupportsTransparency() bool

type OptimizationResult ¶

type OptimizationResult struct {
	// contains filtered or unexported fields
}

type Options ¶

type Options struct {
	PathTemp, PathMedia string
	Timeout             int
}

type PNGHandler ¶

type PNGHandler struct {
	ImageHandler
}

func (*PNGHandler) Decode ¶

func (p *PNGHandler) Decode(reader io.Reader) (image.Image, error)

func (*PNGHandler) Encode ¶

func (p *PNGHandler) Encode(newImgFile io.Writer, newImage image.Image, quality uint) error

func (*PNGHandler) ImageExtension ¶

func (p *PNGHandler) ImageExtension() string

func (*PNGHandler) ImageType ¶

func (p *PNGHandler) ImageType() string

func (*PNGHandler) SupportsTransparency ¶

func (p *PNGHandler) SupportsTransparency() bool

type WebPHandler ¶

type WebPHandler struct {
	ImageHandler
}

func (*WebPHandler) Decode ¶

func (w *WebPHandler) Decode(reader io.Reader) (image.Image, error)

func (*WebPHandler) Encode ¶

func (w *WebPHandler) Encode(newImgFile io.Writer, newImage image.Image, quality uint) error

func (*WebPHandler) ImageExtension ¶

func (w *WebPHandler) ImageExtension() string

func (*WebPHandler) ImageType ¶

func (w *WebPHandler) ImageType() string

func (*WebPHandler) SupportsTransparency ¶

func (w *WebPHandler) SupportsTransparency() bool

type WebPLosslessHandler ¶

type WebPLosslessHandler struct {
	WebPHandler
}

func (*WebPLosslessHandler) Encode ¶

func (w *WebPLosslessHandler) Encode(newImgFile io.Writer, newImage image.Image, quality uint) error

func (*WebPLosslessHandler) ImageExtension ¶

func (w *WebPLosslessHandler) ImageExtension() string

type WorkerManager ¶

type WorkerManager struct {
	// contains filtered or unexported fields
}

var GlobalWorkerManager *WorkerManager

func NewWorkerManager ¶

func NewWorkerManager() *WorkerManager

func (*WorkerManager) Close ¶

func (w *WorkerManager) Close()

func (*WorkerManager) Dispatch ¶

func (w *WorkerManager) Dispatch(response *http.Response, imageParameters *ImageParameters, options *Options) chan output

func (*WorkerManager) Run ¶

func (w *WorkerManager) Run()

Source Files ¶

View all Source files

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL