context

package
v1.0.11 Latest Latest
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 Go to latest Published: Feb 9, 2022 License: LGPL-3.0, LGPL-3.0 Imports: 32 Imported by: 0

Documentation

Overview

Package context provide the context utils Usage: 

	import "github.com/W3-Engineers-Ltd/Radiant/server/web/context"

	ctx := context.Context{Request:req,ResponseWriter:rw}

 more docs http://radiant.me/docs/module/context.md

Index

Constants

View Source 
const (
	ApplicationJSON  = "application/json"
	ApplicationXML   = "application/xml"
	ApplicationForm  = "application/x-www-form-urlencoded"
	ApplicationProto = "application/x-protobuf"
	ApplicationYAML  = "application/x-yaml"
	TextXML          = "text/xml"
)

Commonly used mime-types

Variables

This section is empty.

Functions

func InitGzip 

func InitGzip(minLength, compressLevel int, methods []string)

InitGzip initializes the gzipcompress

func ParseEncoding 

func ParseEncoding(r *http.Request) string

ParseEncoding will extract the right encoding for response the Accept-Encoding's sec is here: http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.3

func ParseForm 

func ParseForm(form url.Values, obj interface{}) error

ParseForm will parse form values to struct via tag.

func WriteBody 

func WriteBody(encoding string, writer io.Writer, content []byte) (bool, string, error)

WriteBody reads writes content to writer by the specific encoding(gzip/deflate)

func WriteFile 

func WriteFile(encoding string, writer io.Writer, file *os.File) (bool, string, error)

WriteFile reads from file and writes to writer by the specific encoding(gzip/deflate)

Types

type Context 

type Context struct {
	Input          *RadiantInput
	Output         *RadiantOutput
	Request        *http.Request
	ResponseWriter *Response
	// contains filtered or unexported fields
}

Context Http request context struct including RadiantInput, RadiantOutput, http.Request and http.ResponseWriter. RadiantInput and RadiantOutput provides an api to operate request and response more easily.

func NewContext 

func NewContext() *Context

NewContext return the Context with Input and Output

func (*Context) Abort 

func (ctx *Context) Abort(status int, body string)

Abort stops the request. If radiant.ErrorMaps exists, panic body.

func (*Context) Bind 

func (ctx *Context) Bind(obj interface{}) error

func (*Context) BindForm 

func (ctx *Context) BindForm(obj interface{}) error

BindForm will parse form values to struct via tag.

func (*Context) BindJSON 

func (ctx *Context) BindJSON(obj interface{}) error

BindJSON only read data from http request body

func (*Context) BindProtobuf 

func (ctx *Context) BindProtobuf(obj proto.Message) error

BindProtobuf only read data from http request body

func (*Context) BindXML 

func (ctx *Context) BindXML(obj interface{}) error

BindXML only read data from http request body

func (*Context) BindYAML 

func (ctx *Context) BindYAML(obj interface{}) error

BindYAML only read data from http request body

func (*Context) CheckXSRFCookie 

func (ctx *Context) CheckXSRFCookie() bool

CheckXSRFCookie checks if the XSRF token in this request is valid or not. The token can be provided in the request header in the form "X-Xsrftoken" or "X-CsrfToken" or in form field value named as "_xsrf".

func (*Context) GetCookie 

func (ctx *Context) GetCookie(key string) string

GetCookie gets a cookie from a request for a given key. (Alias of RadiantInput.Cookie)

func (*Context) GetSecureCookie 

func (ctx *Context) GetSecureCookie(Secret, key string) (string, bool)

GetSecureCookie gets a secure cookie from a request for a given key.

func (*Context) JSONResp 

func (ctx *Context) JSONResp(data interface{}) error

func (*Context) ProtoResp 

func (ctx *Context) ProtoResp(data proto.Message) error

func (*Context) Redirect 

func (ctx *Context) Redirect(status int, localurl string)

Redirect redirects to localurl with http header status code.

func (*Context) RenderMethodResult 

func (ctx *Context) RenderMethodResult(result interface{})

RenderMethodResult renders the return value of a controller method to the output

func (*Context) Reset 

func (ctx *Context) Reset(rw http.ResponseWriter, r *http.Request)

Reset initializes Context, RadiantInput and RadiantOutput

func (*Context) Resp 

func (ctx *Context) Resp(data interface{}) error

Resp sends response based on the Accept Header By default response will be in JSON

func (*Context) Session 

func (ctx *Context) Session() (store session.Store, err error)

Session return session store of this context of request

func (*Context) SetCookie 

func (ctx *Context) SetCookie(name string, value string, others ...interface{})

SetCookie sets a cookie for a response. (Alias of RadiantOutput.Cookie)

func (*Context) SetSecureCookie 

func (ctx *Context) SetSecureCookie(Secret, name, value string, others ...interface{})

SetSecureCookie sets a secure cookie for a response.

func (*Context) WriteString 

func (ctx *Context) WriteString(content string)

WriteString writes a string to response body.

func (*Context) XMLResp 

func (ctx *Context) XMLResp(data interface{}) error

func (*Context) XSRFToken 

func (ctx *Context) XSRFToken(key string, expire int64) string

XSRFToken creates and returns an xsrf token string

func (*Context) YamlResp 

func (ctx *Context) YamlResp(data interface{}) error

type RadiantInput 

type RadiantInput struct {
	Context    *Context
	CruSession session.Store

	RequestBody   []byte
	RunMethod     string
	RunController reflect.Type
	// contains filtered or unexported fields
}

RadiantInput operates the http request header, data, cookie and body. Contains router params and current session.

func NewInput 

func NewInput() *RadiantInput

NewInput returns the RadiantInput generated by context.

func (*RadiantInput) AcceptsHTML 

func (input *RadiantInput) AcceptsHTML() bool

AcceptsHTML Checks if request accepts html response

func (*RadiantInput) AcceptsJSON 

func (input *RadiantInput) AcceptsJSON() bool

AcceptsJSON Checks if request accepts json response

func (*RadiantInput) AcceptsXML 

func (input *RadiantInput) AcceptsXML() bool

AcceptsXML Checks if request accepts xml response

func (*RadiantInput) AcceptsYAML 

func (input *RadiantInput) AcceptsYAML() bool

AcceptsYAML Checks if request accepts json response

func (*RadiantInput) Bind 

func (input *RadiantInput) Bind(dest interface{}, key string) error

Bind data from request.Form[key] to dest like /?id=123&isok=true&ft=1.2&ol[0]=1&ol[1]=2&ul[]=str&ul[]=array&user.Name=astaxie var id int radiantInput.Bind(&id, "id") id ==123 var isok bool radiantInput.Bind(&isok, "isok") isok ==true var ft float64 radiantInput.Bind(&ft, "ft") ft ==1.2 ol := make([]int, 0, 2) radiantInput.Bind(&ol, "ol") ol ==[1 2] ul := make([]string, 0, 2) radiantInput.Bind(&ul, "ul") ul ==[str array] user struct{Name} radiantInput.Bind(&user, "user") user == {Name:"astaxie"}

func (*RadiantInput) Cookie 

func (input *RadiantInput) Cookie(key string) string

Cookie returns request cookie item string by a given key. if non-existed, return empty string.

func (*RadiantInput) CopyBody 

func (input *RadiantInput) CopyBody(MaxMemory int64) []byte

CopyBody returns the raw request body data as bytes.

func (*RadiantInput) Data 

func (input *RadiantInput) Data() map[interface{}]interface{}

Data returns the implicit data in the input

func (*RadiantInput) Domain 

func (input *RadiantInput) Domain() string

Domain returns the host name (alias of host method)

func (*RadiantInput) GetData 

func (input *RadiantInput) GetData(key interface{}) interface{}

GetData returns the stored data in this context.

func (*RadiantInput) Header 

func (input *RadiantInput) Header(key string) string

Header returns request header item string by a given string. if non-existed, return empty string.

func (*RadiantInput) Host 

func (input *RadiantInput) Host() string

Host returns the host name. If no host info in request, return localhost.

func (*RadiantInput) IP 

func (input *RadiantInput) IP() string

IP returns request client ip. if in proxy, return first proxy id. if error, return RemoteAddr.

func (*RadiantInput) Is 

func (input *RadiantInput) Is(method string) bool

Is returns the boolean value of this request is on given method, such as Is("POST").

func (*RadiantInput) IsAjax 

func (input *RadiantInput) IsAjax() bool

IsAjax returns boolean of is this request generated by ajax.

func (*RadiantInput) IsDelete 

func (input *RadiantInput) IsDelete() bool

IsDelete Is this a DELETE method request?

func (*RadiantInput) IsGet 

func (input *RadiantInput) IsGet() bool

IsGet Is this a GET method request?

func (*RadiantInput) IsHead 

func (input *RadiantInput) IsHead() bool

IsHead Is this a Head method request?

func (*RadiantInput) IsOptions 

func (input *RadiantInput) IsOptions() bool

IsOptions Is this a OPTIONS method request?

func (*RadiantInput) IsPatch 

func (input *RadiantInput) IsPatch() bool

IsPatch Is this a PATCH method request?

func (*RadiantInput) IsPost 

func (input *RadiantInput) IsPost() bool

IsPost Is this a POST method request?

func (*RadiantInput) IsPut 

func (input *RadiantInput) IsPut() bool

IsPut Is this a PUT method request?

func (*RadiantInput) IsSecure 

func (input *RadiantInput) IsSecure() bool

IsSecure returns boolean of this request is in https.

func (*RadiantInput) IsUpload 

func (input *RadiantInput) IsUpload() bool

IsUpload returns boolean of whether file uploads in this request or not..

func (*RadiantInput) IsWebsocket 

func (input *RadiantInput) IsWebsocket() bool

IsWebsocket returns boolean of this request is in webSocket.

func (*RadiantInput) Method 

func (input *RadiantInput) Method() string

Method returns http request method.

func (*RadiantInput) Param 

func (input *RadiantInput) Param(key string) string

Param returns router param by a given key.

func (*RadiantInput) Params 

func (input *RadiantInput) Params() map[string]string

Params returns the map[key]value.

func (*RadiantInput) ParamsLen 

func (input *RadiantInput) ParamsLen() int

ParamsLen return the length of the params

func (*RadiantInput) ParseFormOrMultiForm 

func (input *RadiantInput) ParseFormOrMultiForm(maxMemory int64) error

ParseFormOrMultiForm parseForm or parseMultiForm based on Content-type

func (*RadiantInput) Port 

func (input *RadiantInput) Port() int

Port returns request client port. when error or empty, return 80.

func (*RadiantInput) Protocol 

func (input *RadiantInput) Protocol() string

Protocol returns the request protocol name, such as HTTP/1.1 .

func (*RadiantInput) Proxy 

func (input *RadiantInput) Proxy() []string

Proxy returns proxy client ips slice.

func (*RadiantInput) Query 

func (input *RadiantInput) Query(key string) string

Query returns input data item string by a given string.

func (*RadiantInput) Refer 

func (input *RadiantInput) Refer() string

Refer returns http referer header.

func (*RadiantInput) Referer 

func (input *RadiantInput) Referer() string

Referer returns http referer header.

func (*RadiantInput) Reset 

func (input *RadiantInput) Reset(ctx *Context)

Reset initializes the RadiantInput

func (*RadiantInput) ResetParams 

func (input *RadiantInput) ResetParams()

ResetParams clears any of the input's params Used to clear parameters so they may be reset between filter passes.

func (*RadiantInput) Scheme 

func (input *RadiantInput) Scheme() string

Scheme returns the request scheme as "http" or "https".

func (*RadiantInput) Session 

func (input *RadiantInput) Session(key interface{}) interface{}

Session returns current session item value by a given key. if non-existed, return nil.

func (*RadiantInput) SetData 

func (input *RadiantInput) SetData(key, val interface{})

SetData stores data with given key in this context. This data is only available in this context.

func (*RadiantInput) SetParam 

func (input *RadiantInput) SetParam(key, val string)

SetParam sets the param with key and value

func (*RadiantInput) Site 

func (input *RadiantInput) Site() string

Site returns the base site url as scheme://domain type.

func (*RadiantInput) SubDomains 

func (input *RadiantInput) SubDomains() string

SubDomains returns sub domain string. if aa.bb.domain.com, returns aa.bb

func (*RadiantInput) URI 

func (input *RadiantInput) URI() string

URI returns the full request url with query, string and fragment.

func (*RadiantInput) URL 

func (input *RadiantInput) URL() string

URL returns the request url path (without query, string and fragment).

func (*RadiantInput) UserAgent 

func (input *RadiantInput) UserAgent() string

UserAgent returns request client user agent string.

type RadiantOutput 

type RadiantOutput struct {
	Context    *Context
	Status     int
	EnableGzip bool
}

RadiantOutput does work for sending response header.

func NewOutput 

func NewOutput() *RadiantOutput

NewOutput returns new RadiantOutput. Empty when initialized

func (*RadiantOutput) Body 

func (output *RadiantOutput) Body(content []byte) error

Body sets the response body content. if EnableGzip, content is compressed. Sends out response body directly.

func (*RadiantOutput) ContentType 

func (output *RadiantOutput) ContentType(ext string)

ContentType sets the content type from ext string. MIME type is given in mime package.

func (*RadiantOutput) Cookie 

func (output *RadiantOutput) Cookie(name string, value string, others ...interface{})

Cookie sets a cookie value via given key. others: used to set a cookie's max age time, path,domain, secure and httponly.

func (*RadiantOutput) Download 

func (output *RadiantOutput) Download(file string, filename ...string)

Download forces response for download file. Prepares the download response header automatically.

func (*RadiantOutput) Header 

func (output *RadiantOutput) Header(key, val string)

Header sets response header item string via given key.

func (*RadiantOutput) IsCachable 

func (output *RadiantOutput) IsCachable() bool

IsCachable returns boolean of if this request is cached. HTTP 304 means cached.

func (*RadiantOutput) IsClientError 

func (output *RadiantOutput) IsClientError() bool

IsClientError returns boolean of if this request client sends error data. HTTP 4xx means client error.

func (*RadiantOutput) IsEmpty 

func (output *RadiantOutput) IsEmpty() bool

IsEmpty returns boolean of if this request is empty. HTTP 201，204 and 304 means empty.

func (*RadiantOutput) IsForbidden 

func (output *RadiantOutput) IsForbidden() bool

IsForbidden returns boolean of if this request is forbidden. HTTP 403 means forbidden.

func (*RadiantOutput) IsNotFound 

func (output *RadiantOutput) IsNotFound() bool

IsNotFound returns boolean of if this request is not found. HTTP 404 means not found.

func (*RadiantOutput) IsOk 

func (output *RadiantOutput) IsOk() bool

IsOk returns boolean of if this request was ok. HTTP 200 means ok.

func (*RadiantOutput) IsRedirect 

func (output *RadiantOutput) IsRedirect() bool

IsRedirect returns boolean of if this request is redirected. HTTP 301,302,307 means redirection.

func (*RadiantOutput) IsServerError 

func (output *RadiantOutput) IsServerError() bool

IsServerError returns boolean of if this server handler errors. HTTP 5xx means server internal error.

func (*RadiantOutput) IsSuccessful 

func (output *RadiantOutput) IsSuccessful() bool

IsSuccessful returns boolean of this request was successful. HTTP 2xx means ok.

func (*RadiantOutput) JSON 

func (output *RadiantOutput) JSON(data interface{}, hasIndent bool, encoding bool) error

JSON writes json to the response body. if encoding is true, it converts utf-8 to \u0000 type.

func (*RadiantOutput) JSONP 

func (output *RadiantOutput) JSONP(data interface{}, hasIndent bool) error

JSONP writes jsonp to the response body.

func (*RadiantOutput) Proto 

func (output *RadiantOutput) Proto(data proto.Message) error

Proto writes protobuf to the response body.

func (*RadiantOutput) Reset 

func (output *RadiantOutput) Reset(ctx *Context)

Reset initializes RadiantOutput

func (*RadiantOutput) ServeFormatted 

func (output *RadiantOutput) ServeFormatted(data interface{}, hasIndent bool, hasEncode ...bool) error

ServeFormatted serves YAML, XML or JSON, depending on the value of the Accept header

func (*RadiantOutput) Session 

func (output *RadiantOutput) Session(name interface{}, value interface{})

Session sets session item value with given key.

func (*RadiantOutput) SetStatus 

func (output *RadiantOutput) SetStatus(status int)

SetStatus sets the response status code. Writes response header directly.

func (*RadiantOutput) XML 

func (output *RadiantOutput) XML(data interface{}, hasIndent bool) error

XML writes xml string to the response body.

func (*RadiantOutput) YAML 

func (output *RadiantOutput) YAML(data interface{}) error

YAML writes yaml to the response body.

type Renderer 

type Renderer interface {
	Render(ctx *Context)
}

Renderer defines a http response renderer

type Response 

type Response struct {
	http.ResponseWriter
	Started bool
	Status  int
	Elapsed time.Duration
}

Response is a wrapper for the http.ResponseWriter Started: if true, response was already written to so the other handler will not be executed

func (*Response) CloseNotify 

func (r *Response) CloseNotify() <-chan bool

CloseNotify http.CloseNotifier

func (*Response) Flush 

func (r *Response) Flush()

Flush http.Flusher

func (*Response) Hijack 

func (r *Response) Hijack() (net.Conn, *bufio.ReadWriter, error)

Hijack hijacker for http

func (*Response) Pusher 

func (r *Response) Pusher() (pusher http.Pusher)

Pusher http.Pusher

func (*Response) Write 

func (r *Response) Write(p []byte) (int, error)

Write writes the data to the connection as part of a HTTP reply, and sets `Started` to true. Started: if true, the response was already sent

func (*Response) WriteHeader 

func (r *Response) WriteHeader(code int)

WriteHeader sends a HTTP response header with status code, and sets `Started` to true.

type StatusCode 

type StatusCode int

StatusCode sets the HTTP response status code 

const (
	// BadRequest indicates HTTP error 400
	BadRequest StatusCode = http.StatusBadRequest

	// NotFound indicates HTTP error 404
	NotFound StatusCode = http.StatusNotFound
)

func (StatusCode) Error 

func (s StatusCode) Error() string

func (StatusCode) Render 

func (s StatusCode) Render(ctx *Context)

Render sets the HTTP status code

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