/
cache_monitor.go
70 lines (64 loc) · 2.27 KB
/
cache_monitor.go
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/***************************************************************
*
* Copyright (C) 2024, Pelican Project, Morgridge Institute for Research
*
* 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 director
import (
"context"
"fmt"
"io"
"net/http"
"net/url"
"strings"
"time"
"github.com/pelicanplatform/pelican/config"
"github.com/pkg/errors"
)
const (
cacheMonitroingBasePath = "/pelican/monitoring"
testFileContent = "This object was created by the Pelican director-test functionality. Test is issued at "
)
func runCacheTest(ctx context.Context, cacheUrl url.URL) error {
nowStr := time.Now().Format(time.RFC3339)
cacheUrl.Path = fmt.Sprintf("/pelican/monitoring/%s.txt", nowStr)
client := http.Client{Transport: config.GetTransport()}
req, err := http.NewRequestWithContext(ctx, "GET", cacheUrl.String(), nil)
if err != nil {
urlErr, ok := err.(*url.Error)
if ok && urlErr.Err == context.Canceled {
// Shouldn't return error if the error is due to context being cancelled
return nil
}
return errors.Wrap(err, "failed to create an HTTP request")
}
res, err := client.Do(req)
if err != nil {
return errors.Wrap(err, "failed to send request to cache for the test file")
}
byteBody, err := io.ReadAll(res.Body)
if err != nil {
return errors.Wrap(err, "failed to read response body. Response status code is "+res.Status)
}
if res.StatusCode != 200 {
return fmt.Errorf("cache responses with non-200 status code. Body is %s", string(byteBody))
}
strBody := string(byteBody)
if strings.TrimSuffix(strBody, "\n") == testFileContent+nowStr {
return nil
} else {
return fmt.Errorf("cache response file does not match expectation. Expected:%s, Got:%s", testFileContent+nowStr, strBody)
}
}