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Signed-off-by: Song Gao <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| // Copyright 2024 EMQ Technologies Co., Ltd. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package server | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "net/http" | ||
| "os" | ||
| "path/filepath" | ||
| "strconv" | ||
| "time" | ||
|
|
||
| "github.com/lf-edge/ekuiper/v2/metrics" | ||
| ) | ||
|
|
||
| func dumpMetricsHandler(w http.ResponseWriter, r *http.Request) { | ||
| startTime, endTime := extractStartEndTime(r) | ||
| zipFilePath, err := metrics.GetMetricsZipFile(startTime, endTime) | ||
| if err != nil { | ||
| handleError(w, err, "", logger) | ||
| return | ||
| } | ||
| defer os.Remove(zipFilePath) | ||
| downloadHandler(zipFilePath, w, r) | ||
| } | ||
|
|
||
| func extractStartEndTime(r *http.Request) (time.Time, time.Time) { | ||
| st := r.URL.Query().Get("startTime") | ||
| et := r.URL.Query().Get("endTime") | ||
| sti, err1 := strconv.ParseInt(st, 10, 64) | ||
| eti, err2 := strconv.ParseInt(et, 10, 64) | ||
| if err1 != nil || err2 != nil { | ||
| return time.Now().Add(-1 * time.Hour), time.Now() | ||
| } | ||
| return time.Unix(sti, 0), time.Unix(eti, 0) | ||
| } | ||
|
|
||
| func downloadHandler(targetFilePath string, w http.ResponseWriter, r *http.Request) { | ||
| if _, err := os.Stat(targetFilePath); os.IsNotExist(err) { | ||
| http.Error(w, "File not found", http.StatusNotFound) | ||
| return | ||
| } | ||
| file, err := os.Open(targetFilePath) | ||
| if err != nil { | ||
| http.Error(w, "Failed to open file", http.StatusInternalServerError) | ||
| return | ||
| } | ||
| defer file.Close() | ||
| fileInfo, err := file.Stat() | ||
| if err != nil { | ||
| http.Error(w, "Failed to get file info", http.StatusInternalServerError) | ||
| return | ||
| } | ||
| w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", filepath.Base(targetFilePath))) | ||
| w.Header().Set("Content-Type", "application/octet-stream") | ||
| w.Header().Set("Content-Length", fmt.Sprintf("%d", fileInfo.Size())) | ||
| http.ServeContent(w, r, fileInfo.Name(), fileInfo.ModTime(), file) | ||
| } |
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