mirror of https://github.com/grafana/grafana.git
62 lines
1.8 KiB
Go
62 lines
1.8 KiB
Go
package api
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import (
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"errors"
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"fmt"
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"github.com/grafana/grafana/pkg/api/datasource"
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"github.com/grafana/grafana/pkg/api/pluginproxy"
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"github.com/grafana/grafana/pkg/infra/metrics"
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"github.com/grafana/grafana/pkg/models"
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"github.com/grafana/grafana/pkg/plugins"
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)
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// ProxyDataSourceRequest proxies datasource requests
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func (hs *HTTPServer) ProxyDataSourceRequest(c *models.ReqContext) {
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c.TimeRequest(metrics.MDataSourceProxyReqTimer)
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dsID := c.ParamsInt64(":id")
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ds, err := hs.DatasourceCache.GetDatasource(dsID, c.SignedInUser, c.SkipCache)
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if err != nil {
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if err == models.ErrDataSourceAccessDenied {
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c.JsonApiErr(403, "Access denied to datasource", err)
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return
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}
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c.JsonApiErr(500, "Unable to load datasource meta data", err)
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return
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}
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// find plugin
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plugin, ok := plugins.DataSources[ds.Type]
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if !ok {
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c.JsonApiErr(500, "Unable to find datasource plugin", err)
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return
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}
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// macaron does not include trailing slashes when resolving a wildcard path
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proxyPath := ensureProxyPathTrailingSlash(c.Req.URL.Path, c.Params("*"))
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proxy, err := pluginproxy.NewDataSourceProxy(ds, plugin, c, proxyPath, hs.Cfg)
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if err != nil {
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if errors.Is(err, datasource.URLValidationError{}) {
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c.JsonApiErr(400, fmt.Sprintf("Invalid data source URL: %q", ds.Url), err)
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} else {
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c.JsonApiErr(500, "Failed creating data source proxy", err)
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}
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return
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}
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proxy.HandleRequest()
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}
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// ensureProxyPathTrailingSlash Check for a trailing slash in original path and makes
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// sure that a trailing slash is added to proxy path, if not already exists.
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func ensureProxyPathTrailingSlash(originalPath, proxyPath string) string {
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if len(proxyPath) > 1 {
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if originalPath[len(originalPath)-1] == '/' && proxyPath[len(proxyPath)-1] != '/' {
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return proxyPath + "/"
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}
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}
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return proxyPath
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}
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