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b07d0b1026
This adds support for using templated/dynamic urls in routes. * refactor interpolateString into utils and add interpolation support for app plugin routes. * cleanup and add error check for url parse failure * add docs for interpolated route urls Closes #16835
50 lines
1.3 KiB
Go
50 lines
1.3 KiB
Go
package pluginproxy
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import (
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"bytes"
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"fmt"
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"net/url"
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"text/template"
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m "github.com/grafana/grafana/pkg/models"
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"github.com/grafana/grafana/pkg/plugins"
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)
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// InterpolateString accepts template data and return a string with substitutions
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func InterpolateString(text string, data templateData) (string, error) {
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t, err := template.New("content").Parse(text)
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if err != nil {
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return "", fmt.Errorf("could not parse template %s", text)
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}
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var contentBuf bytes.Buffer
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err = t.Execute(&contentBuf, data)
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if err != nil {
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return "", fmt.Errorf("failed to execute template %s", text)
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}
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return contentBuf.String(), nil
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}
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// InterpolateURL accepts template data and return a string with substitutions
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func InterpolateURL(anURL *url.URL, route *plugins.AppPluginRoute, orgID int64, appID string) (*url.URL, error) {
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query := m.GetPluginSettingByIdQuery{OrgId: orgID, PluginId: appID}
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result, err := url.Parse(anURL.String())
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if query.Result != nil {
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if len(query.Result.JsonData) > 0 {
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data := templateData{
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JsonData: query.Result.JsonData,
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}
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interpolatedResult, err := InterpolateString(anURL.String(), data)
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if err == nil {
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result, err = url.Parse(interpolatedResult)
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if err != nil {
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return nil, fmt.Errorf("Error parsing plugin route url %v", err)
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}
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}
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}
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}
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return result, err
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}
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