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webResponse.go
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/
webResponse.go
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package middleware
import (
"fmt"
"path/filepath"
"strings"
"github.com/micro-plat/hydra/conf"
"github.com/micro-plat/hydra/context"
"github.com/gin-gonic/gin"
)
//WebResponse 处理web返回值
func WebResponse(conf *conf.MetadataConf) gin.HandlerFunc {
return func(ctx *gin.Context) {
ctx.Next()
nctx := getCTX(ctx)
if nctx == nil {
return
}
if url, ok := nctx.Response.IsRedirect(); ok {
ctx.Redirect(nctx.Response.GetStatus(), url)
return
}
if ctx.Writer.Written() {
return
}
tp, content, err := nctx.Response.GetHTMLRenderContent()
writeTrace(getTrace(conf), tp, ctx, content)
if err != nil && err.Error() != "" {
getLogger(ctx).Error(err)
ctx.JSON(nctx.Response.GetStatus(), map[string]interface{}{"err": err})
return
}
tpName := context.ContentTypes[tp]
switch tp {
case context.CT_JSON:
ctx.JSON(nctx.Response.GetStatus(), content)
case context.CT_XML:
if v, ok := content.([]byte); ok {
ctx.Data(nctx.Response.GetStatus(), tpName, v)
return
}
ctx.XML(nctx.Response.GetStatus(), content)
case context.CT_YMAL:
if v, ok := content.([]byte); ok {
ctx.Data(nctx.Response.GetStatus(), tpName, v)
return
}
ctx.YAML(nctx.Response.GetStatus(), content)
case context.CT_PLAIN:
ctx.Data(nctx.Response.GetStatus(), tpName, content.([]byte))
default:
if renderHTML(ctx, nctx.Response, conf) {
return
}
html := fmt.Sprint(content)
if strings.HasPrefix(html, "<!DOCTYPE html") {
ctx.Data(nctx.Response.GetStatus(), tpName, []byte(html))
return
}
ctx.Data(nctx.Response.GetStatus(), context.ContentTypes[context.CT_PLAIN], []byte(html))
}
}
}
func renderHTML(ctx *gin.Context, response context.IResponse, cnf *conf.MetadataConf) bool {
files, ok := cnf.GetMetadata("viewFiles").([]string)
if !ok {
return false
}
root := cnf.GetMetadata("view").(*conf.View).Path
viewPath := filepath.Join(root, fmt.Sprintf("%s.html", getViewName(ctx, response)))
for _, f := range files {
if f == viewPath {
ctx.HTML(response.GetStatus(), filepath.Base(viewPath), response.GetContent())
return true
}
}
return false
}
func getViewName(ctx *gin.Context, response context.IResponse) string {
view := response.GetView()
if view != "" {
return view
}
return getServiceName(ctx)
}