func()

in pkg/filter/cors/cors.go [81:126]

• 39 lines of code
• 13 McCabe index (conditional complexity)

func (f *Filter) Decode(ctx *http.HttpContext) filter.FilterStatus {
	writer := ctx.Writer
	c := f.cfg
	if c == nil {
		return filter.Continue
	}
	if ctx.GetHeader(constant.Origin) == "" {
		// not a cors request
		return filter.Continue
	}

	domains := c.AllowOrigin
	if len(domains) != 0 {
		for _, domain := range domains {
			if domain == "*" || ctx.GetHeader("Origin") == domain {
				writer.Header().Add(constant.HeaderKeyAccessControlAllowOrigin, domain)
				continue
			}
		}
	}

	if c.AllowHeaders != "" {
		writer.Header().Add(constant.HeaderKeyAccessControlAllowHeaders, c.AllowHeaders)
	}

	if c.ExposeHeaders != "" {
		writer.Header().Add(constant.HeaderKeyAccessControlExposeHeaders, c.ExposeHeaders)
	}

	if c.AllowMethods != "" {
		writer.Header().Add(constant.HeaderKeyAccessControlAllowMethods, c.AllowMethods)
	}

	if c.MaxAge != "" {
		writer.Header().Add(constant.HeaderKeyAccessControlMaxAge, c.MaxAge)
	}

	if c.AllowCredentials {
		writer.Header().Add(constant.HeaderKeyAccessControlAllowCredentials, "true")
	}
	if ctx.Request.Method == stdHttp.MethodOptions {
		ctx.SendLocalReply(stdHttp.StatusOK, nil)
		return filter.Stop
	}
	return filter.Continue
}