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gearbox.go
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gearbox.go
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// Package gearbox is a web framework with a focus on high performance and memory optimization
package gearbox
import (
"fmt"
"net"
"github.com/valyala/fasthttp"
)
// Exported constants
const (
// Version of gearbox
Version = "0.0.2"
)
// HTTP methods were copied from net/http.
const (
MethodGet = "GET" // RFC 7231, 4.3.1
MethodHead = "HEAD" // RFC 7231, 4.3.2
MethodPost = "POST" // RFC 7231, 4.3.3
MethodPut = "PUT" // RFC 7231, 4.3.4
MethodPatch = "PATCH" // RFC 5789
MethodDelete = "DELETE" // RFC 7231, 4.3.5
MethodConnect = "CONNECT" // RFC 7231, 4.3.6
MethodOptions = "OPTIONS" // RFC 7231, 4.3.7
MethodTrace = "TRACE" // RFC 7231, 4.3.8
)
// HTTP status codes were copied from net/http.
const (
StatusContinue = 100 // RFC 7231, 6.2.1
StatusSwitchingProtocols = 101 // RFC 7231, 6.2.2
StatusProcessing = 102 // RFC 2518, 10.1
StatusOK = 200 // RFC 7231, 6.3.1
StatusCreated = 201 // RFC 7231, 6.3.2
StatusAccepted = 202 // RFC 7231, 6.3.3
StatusNonAuthoritativeInfo = 203 // RFC 7231, 6.3.4
StatusNoContent = 204 // RFC 7231, 6.3.5
StatusResetContent = 205 // RFC 7231, 6.3.6
StatusPartialContent = 206 // RFC 7233, 4.1
StatusMultiStatus = 207 // RFC 4918, 11.1
StatusAlreadyReported = 208 // RFC 5842, 7.1
StatusIMUsed = 226 // RFC 3229, 10.4.1
StatusMultipleChoices = 300 // RFC 7231, 6.4.1
StatusMovedPermanently = 301 // RFC 7231, 6.4.2
StatusFound = 302 // RFC 7231, 6.4.3
StatusSeeOther = 303 // RFC 7231, 6.4.4
StatusNotModified = 304 // RFC 7232, 4.1
StatusUseProxy = 305 // RFC 7231, 6.4.5
_ = 306 // RFC 7231, 6.4.6 (Unused)
StatusTemporaryRedirect = 307 // RFC 7231, 6.4.7
StatusPermanentRedirect = 308 // RFC 7538, 3
StatusBadRequest = 400 // RFC 7231, 6.5.1
StatusUnauthorized = 401 // RFC 7235, 3.1
StatusPaymentRequired = 402 // RFC 7231, 6.5.2
StatusForbidden = 403 // RFC 7231, 6.5.3
StatusNotFound = 404 // RFC 7231, 6.5.4
StatusMethodNotAllowed = 405 // RFC 7231, 6.5.5
StatusNotAcceptable = 406 // RFC 7231, 6.5.6
StatusProxyAuthRequired = 407 // RFC 7235, 3.2
StatusRequestTimeout = 408 // RFC 7231, 6.5.7
StatusConflict = 409 // RFC 7231, 6.5.8
StatusGone = 410 // RFC 7231, 6.5.9
StatusLengthRequired = 411 // RFC 7231, 6.5.10
StatusPreconditionFailed = 412 // RFC 7232, 4.2
StatusRequestEntityTooLarge = 413 // RFC 7231, 6.5.11
StatusRequestURITooLong = 414 // RFC 7231, 6.5.12
StatusUnsupportedMediaType = 415 // RFC 7231, 6.5.13
StatusRequestedRangeNotSatisfiable = 416 // RFC 7233, 4.4
StatusExpectationFailed = 417 // RFC 7231, 6.5.14
StatusTeapot = 418 // RFC 7168, 2.3.3
StatusUnprocessableEntity = 422 // RFC 4918, 11.2
StatusLocked = 423 // RFC 4918, 11.3
StatusFailedDependency = 424 // RFC 4918, 11.4
StatusUpgradeRequired = 426 // RFC 7231, 6.5.15
StatusPreconditionRequired = 428 // RFC 6585, 3
StatusTooManyRequests = 429 // RFC 6585, 4
StatusRequestHeaderFieldsTooLarge = 431 // RFC 6585, 5
StatusUnavailableForLegalReasons = 451 // RFC 7725, 3
StatusInternalServerError = 500 // RFC 7231, 6.6.1
StatusNotImplemented = 501 // RFC 7231, 6.6.2
StatusBadGateway = 502 // RFC 7231, 6.6.3
StatusServiceUnavailable = 503 // RFC 7231, 6.6.4
StatusGatewayTimeout = 504 // RFC 7231, 6.6.5
StatusHTTPVersionNotSupported = 505 // RFC 7231, 6.6.6
StatusVariantAlsoNegotiates = 506 // RFC 2295, 8.1
StatusInsufficientStorage = 507 // RFC 4918, 11.5
StatusLoopDetected = 508 // RFC 5842, 7.2
StatusNotExtended = 510 // RFC 2774, 7
StatusNetworkAuthenticationRequired = 511 // RFC 6585, 6
)
// Gearbox interface
type Gearbox interface {
Start(address string) error
Stop() error
Get(path string, handler func(*fasthttp.RequestCtx)) error
Head(path string, handler func(*fasthttp.RequestCtx)) error
Post(path string, handler func(*fasthttp.RequestCtx)) error
Put(path string, handler func(*fasthttp.RequestCtx)) error
Patch(path string, handler func(*fasthttp.RequestCtx)) error
Delete(path string, handler func(*fasthttp.RequestCtx)) error
Connect(path string, handler func(*fasthttp.RequestCtx)) error
Options(path string, handler func(*fasthttp.RequestCtx)) error
Trace(path string, handler func(*fasthttp.RequestCtx)) error
}
// gearbox implements Gearbox interface
type gearbox struct {
httpServer *fasthttp.Server
routingTreeRoot *routeNode
registeredRoutes []*routeInfo
}
// New creates a new instance of gearbox
func New() Gearbox {
gb := new(gearbox)
gb.registeredRoutes = make([]*routeInfo, 0)
gb.httpServer = gb.newHTTPServer()
return gb
}
// Start handling requests
func (gb *gearbox) Start(address string) error {
// Construct routing tree
if err := gb.constructRoutingTree(); err != nil {
return fmt.Errorf("Unable to construct routing %s", err.Error())
}
ln, err := net.Listen("tcp4", address)
if err != nil {
return err
}
return gb.httpServer.Serve(ln)
}
// newHTTPServer returns a new instance of fasthttp server
func (gb *gearbox) newHTTPServer() *fasthttp.Server {
return &fasthttp.Server{
Handler: gb.handler,
Logger: nil,
LogAllErrors: false,
}
}
// Stop serving
func (gb *gearbox) Stop() error {
if gb.httpServer == nil {
return nil
}
return gb.httpServer.Shutdown()
}
// Get registers an http relevant method
func (gb *gearbox) Get(path string, handler func(*fasthttp.RequestCtx)) error {
return gb.registerRoute(MethodGet, path, handler)
}
// Head registers an http relevant method
func (gb *gearbox) Head(path string, handler func(*fasthttp.RequestCtx)) error {
return gb.registerRoute(MethodHead, path, handler)
}
// Post registers an http relevant method
func (gb *gearbox) Post(path string, handler func(*fasthttp.RequestCtx)) error {
return gb.registerRoute(MethodPost, path, handler)
}
// Put registers an http relevant method
func (gb *gearbox) Put(path string, handler func(*fasthttp.RequestCtx)) error {
return gb.registerRoute(MethodPut, path, handler)
}
// Patch registers an http relevant method
func (gb *gearbox) Patch(path string, handler func(*fasthttp.RequestCtx)) error {
return gb.registerRoute(MethodPatch, path, handler)
}
// Delete registers an http relevant method
func (gb *gearbox) Delete(path string, handler func(*fasthttp.RequestCtx)) error {
return gb.registerRoute(MethodDelete, path, handler)
}
// Connect registers an http relevant method
func (gb *gearbox) Connect(path string, handler func(*fasthttp.RequestCtx)) error {
return gb.registerRoute(MethodConnect, path, handler)
}
// Options registers an http relevant method
func (gb *gearbox) Options(path string, handler func(*fasthttp.RequestCtx)) error {
return gb.registerRoute(MethodOptions, path, handler)
}
// Trace registers an http relevant method
func (gb *gearbox) Trace(path string, handler func(*fasthttp.RequestCtx)) error {
return gb.registerRoute(MethodTrace, path, handler)
}
// Handles all incoming requests and route them to proper handler according to
// method and path
func (gb *gearbox) handler(ctx *fasthttp.RequestCtx) {
if handler := gb.matchRoute(getString(ctx.Request.Header.Method()), getString(ctx.URI().Path())); handler != nil {
handler(ctx)
return
}
ctx.SetStatusCode(StatusNotFound)
}