代码拉取完成,页面将自动刷新
package api
import (
"fmt"
"net/http"
"runtime"
"strconv"
"strings"
"time"
m "github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/services/rendering"
"github.com/grafana/grafana/pkg/util"
)
func (hs *HTTPServer) RenderToPng(c *m.ReqContext) {
queryReader, err := util.NewURLQueryReader(c.Req.URL)
if err != nil {
c.Handle(400, "Render parameters error", err)
return
}
queryParams := fmt.Sprintf("?%s", c.Req.URL.RawQuery)
width, err := strconv.Atoi(queryReader.Get("width", "800"))
if err != nil {
c.Handle(400, "Render parameters error", fmt.Errorf("Cannot parse width as int: %s", err))
return
}
height, err := strconv.Atoi(queryReader.Get("height", "400"))
if err != nil {
c.Handle(400, "Render parameters error", fmt.Errorf("Cannot parse height as int: %s", err))
return
}
timeout, err := strconv.Atoi(queryReader.Get("timeout", "60"))
if err != nil {
c.Handle(400, "Render parameters error", fmt.Errorf("Cannot parse timeout as int: %s", err))
return
}
result, err := hs.RenderService.Render(c.Req.Context(), rendering.Opts{
Width: width,
Height: height,
Timeout: time.Duration(timeout) * time.Second,
OrgId: c.OrgId,
UserId: c.UserId,
OrgRole: c.OrgRole,
Path: c.Params("*") + queryParams,
Timezone: queryReader.Get("tz", ""),
Encoding: queryReader.Get("encoding", ""),
ConcurrentLimit: 30,
})
if err != nil && err == rendering.ErrTimeout {
c.Handle(500, err.Error(), err)
return
}
if err != nil && err == rendering.ErrPhantomJSNotInstalled {
if strings.HasPrefix(runtime.GOARCH, "arm") {
c.Handle(500, "Rendering failed - PhantomJS isn't included in arm build per default", err)
} else {
c.Handle(500, "Rendering failed - PhantomJS isn't installed correctly", err)
}
return
}
if err != nil {
c.Handle(500, "Rendering failed.", err)
return
}
c.Resp.Header().Set("Content-Type", "image/png")
http.ServeFile(c.Resp, c.Req.Request, result.FilePath)
}
此处可能存在不合适展示的内容,页面不予展示。您可通过相关编辑功能自查并修改。
如您确认内容无涉及 不当用语 / 纯广告导流 / 暴力 / 低俗色情 / 侵权 / 盗版 / 虚假 / 无价值内容或违法国家有关法律法规的内容,可点击提交进行申诉,我们将尽快为您处理。