mirror of
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89 lines
2.6 KiB
Go
89 lines
2.6 KiB
Go
package pluginassets
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import (
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"context"
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"github.com/Masterminds/semver/v3"
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"github.com/grafana/grafana/pkg/infra/log"
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"github.com/grafana/grafana/pkg/plugins"
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"github.com/grafana/grafana/pkg/plugins/pluginscdn"
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"github.com/grafana/grafana/pkg/services/pluginsintegration/pluginstore"
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"github.com/grafana/grafana/pkg/setting"
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)
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const (
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CreatePluginVersionCfgKey = "create_plugin_version"
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CreatePluginVersionScriptSupportEnabled = "4.15.0"
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)
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var (
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scriptLoadingMinSupportedVersion = semver.MustParse(CreatePluginVersionScriptSupportEnabled)
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)
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func ProvideService(cfg *setting.Cfg, cdn *pluginscdn.Service) *Service {
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return &Service{
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cfg: cfg,
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cdn: cdn,
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log: log.New("pluginassets"),
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}
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}
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type Service struct {
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cfg *setting.Cfg
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cdn *pluginscdn.Service
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log log.Logger
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}
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// LoadingStrategy calculates the loading strategy for a plugin.
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// If a plugin has plugin setting `create_plugin_version` >= 4.15.0, set loadingStrategy to "script".
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// If a plugin is not loaded via the CDN and is not Angular, set loadingStrategy to "script".
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// Otherwise, set loadingStrategy to "fetch".
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func (s *Service) LoadingStrategy(_ context.Context, p pluginstore.Plugin) plugins.LoadingStrategy {
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if pCfg, ok := s.cfg.PluginSettings[p.ID]; ok {
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if s.compatibleCreatePluginVersion(pCfg) {
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return plugins.LoadingStrategyScript
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}
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}
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// If the plugin has a parent
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if p.Parent != nil {
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// Check the parent's create_plugin_version setting
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if pCfg, ok := s.cfg.PluginSettings[p.Parent.ID]; ok {
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if s.compatibleCreatePluginVersion(pCfg) {
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return plugins.LoadingStrategyScript
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}
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}
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// Since the parent plugin is not explicitly configured as script loading compatible,
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// If the plugin is either loaded from the CDN (via its parent) or contains Angular, we should use fetch
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if s.cdnEnabled(p.Parent.ID, p.Class) || p.Angular.Detected {
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return plugins.LoadingStrategyFetch
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}
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}
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if !s.cdnEnabled(p.ID, p.Class) && !p.Angular.Detected {
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return plugins.LoadingStrategyScript
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}
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return plugins.LoadingStrategyFetch
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}
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func (s *Service) compatibleCreatePluginVersion(ps map[string]string) bool {
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if cpv, ok := ps[CreatePluginVersionCfgKey]; ok {
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createPluginVer, err := semver.NewVersion(cpv)
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if err != nil {
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s.log.Warn("Failed to parse create plugin version setting as semver", "version", cpv, "error", err)
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} else {
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if !createPluginVer.LessThan(scriptLoadingMinSupportedVersion) {
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return true
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}
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}
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}
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return false
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}
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func (s *Service) cdnEnabled(pluginID string, class plugins.Class) bool {
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return s.cdn.PluginSupported(pluginID) || class == plugins.ClassCDN
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}
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