proxy

package

v1.0.1 Latest Latest Go to latest Published: Mar 28, 2019 License: MIT Imports: 19 Imported by: 0

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Repository

github.com/theaaf/image-proxy

Links

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Documentation ¶

Index ¶

func ContentTypeFilter(in *Response) (*Response, *FilterError)
func HeaderFilter(in *Response) (*Response, *FilterError)
func Proxy(config *Configuration, w http.ResponseWriter, r *Request)
type Configuration
- func (c *Configuration) AllowsHost(host string) bool
- func (c *Configuration) LoadEnvironmentVariables()
type CropType
- func (c *CropType) Anchor() *imaging.Anchor
- func (c *CropType) CamelCase() string
type Dimensions
type Filter
type FilterError
type Request
- func NewRequestFromURL(url *url.URL) (*Request, error)
type Response
type ScalingFunction
- func ScaleToFill(fillWidth, fillHeight int) ScalingFunction
- func ScaleToFit(fitWidth, fitHeight int) ScalingFunction
type ScalingOptions
- func (o *ScalingOptions) IsValid() bool

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func ContentTypeFilter ¶

func ContentTypeFilter(in *Response) (*Response, *FilterError)

func HeaderFilter ¶

func HeaderFilter(in *Response) (*Response, *FilterError)

func Proxy ¶

func Proxy(config *Configuration, w http.ResponseWriter, r *Request)

Types ¶

type Configuration ¶

type Configuration struct {
	AllowedHosts []string
}

func (*Configuration) AllowsHost ¶

func (c *Configuration) AllowsHost(host string) bool

func (*Configuration) LoadEnvironmentVariables ¶

func (c *Configuration) LoadEnvironmentVariables()

type CropType ¶

type CropType string

const (
	CropTypeCenter      CropType = "center"
	CropTypeLeft        CropType = "left"
	CropTypeRight       CropType = "right"
	CropTypeTopLeft     CropType = "top_left"
	CropTypeTop         CropType = "top"
	CropTypeTopRight    CropType = "top_right"
	CropTypeBottomLeft  CropType = "bottom_left"
	CropTypeBottom      CropType = "bottom"
	CropTypeBottomRight CropType = "bottom_right"
)

func (*CropType) Anchor ¶

func (c *CropType) Anchor() *imaging.Anchor

func (*CropType) CamelCase ¶

func (c *CropType) CamelCase() string

type Dimensions ¶

type Dimensions struct {
	Width  int
	Height int
}

type Filter ¶

type Filter func(*Response) (*Response, *FilterError)

func JPEGFilter ¶

func JPEGFilter(quality int) Filter

func RasterizeFilter ¶

func RasterizeFilter(scalingFunction ScalingFunction) Filter

func ScalingFilter ¶

func ScalingFilter(opts *ScalingOptions) Filter

type FilterError ¶

type FilterError struct {
	Error      error
	StatusCode int
}

type Request ¶

type Request struct {
	OriginURL *url.URL
	Filters   []Filter
}

func NewRequestFromURL ¶

func NewRequestFromURL(url *url.URL) (*Request, error)

NewProxyRequestFromURL parses a URL for the origin url and additional options.

type Response ¶

type Response struct {
	Header http.Header
	Body   io.Reader
}

type ScalingFunction ¶

type ScalingFunction func(width, height int, allowUpscaling bool) (int, int)

func ScaleToFill ¶

func ScaleToFill(fillWidth, fillHeight int) ScalingFunction

func ScaleToFit ¶

func ScaleToFit(fitWidth, fitHeight int) ScalingFunction

type ScalingOptions ¶

type ScalingOptions struct {
	Crop *CropType
	Fill *Dimensions
	Fit  *Dimensions
}

func (*ScalingOptions) IsValid ¶

func (o *ScalingOptions) IsValid() bool

Source Files ¶

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