mirror of
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36 lines
1.3 KiB
Go
36 lines
1.3 KiB
Go
package query
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import (
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"net/http"
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"strings"
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"github.com/grafana/grafana/pkg/services/ngalert/models"
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)
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// Set of headers that we want to forward to the datasource api servers. Those are used i.e. for
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// cache control or identifying the source of the request.
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//
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// The headers related to grafana alerting can be found here:
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// https://github.com/grafana/grafana-ruler/blob/96e6d4b25c0d973a7615b92b35739511a6fbd72f/pkg/ruler/rulesmanager/ds_query_rule_evaluator.go#L313-L328
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//
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// The usage of strings.ToLower is because the server would convert `FromAlert` to `Fromalert`. So the make matching
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// easier, we just match all headers in lower case.
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var expectedHeaders = map[string]string{
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strings.ToLower(models.FromAlertHeaderName): models.FromAlertHeaderName,
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strings.ToLower(models.CacheSkipHeaderName): models.CacheSkipHeaderName,
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strings.ToLower("X-Rule-Uid"): "X-Rule-Uid",
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strings.ToLower("X-Rule-Folder"): "X-Rule-Folder",
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strings.ToLower("X-Rule-Source"): "X-Rule-Source",
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strings.ToLower("X-Grafana-Org-Id"): "X-Grafana-Org-Id",
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}
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func ExtractKnownHeaders(header http.Header) map[string]string {
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extractedHeaders := make(map[string]string)
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for k, v := range header {
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if headerName, exists := expectedHeaders[strings.ToLower(k)]; exists {
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extractedHeaders[headerName] = v[0]
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}
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}
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return extractedHeaders
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}
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