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store.go
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store.go
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package manager
import (
"context"
"path/filepath"
"strings"
"github.com/grafana/grafana/pkg/plugins"
)
func (m *PluginManager) Plugin(_ context.Context, pluginID string) (plugins.PluginDTO, bool) {
p, exists := m.plugin(pluginID)
if !exists {
return plugins.PluginDTO{}, false
}
return p.ToDTO(), true
}
func (m *PluginManager) Plugins(_ context.Context, pluginTypes ...plugins.Type) []plugins.PluginDTO {
// if no types passed, assume all
if len(pluginTypes) == 0 {
pluginTypes = plugins.PluginTypes
}
var requestedTypes = make(map[plugins.Type]struct{})
for _, pt := range pluginTypes {
requestedTypes[pt] = struct{}{}
}
pluginsList := make([]plugins.PluginDTO, 0)
for _, p := range m.plugins() {
if _, exists := requestedTypes[p.Type]; exists {
pluginsList = append(pluginsList, p.ToDTO())
}
}
return pluginsList
}
func (m *PluginManager) plugin(pluginID string) (*plugins.Plugin, bool) {
m.pluginsMu.RLock()
defer m.pluginsMu.RUnlock()
p, exists := m.store[pluginID]
if !exists || (p.IsDecommissioned()) {
return nil, false
}
return p, true
}
func (m *PluginManager) plugins() []*plugins.Plugin {
m.pluginsMu.RLock()
defer m.pluginsMu.RUnlock()
res := make([]*plugins.Plugin, 0)
for _, p := range m.store {
if !p.IsDecommissioned() {
res = append(res, p)
}
}
return res
}
func (m *PluginManager) isRegistered(pluginID string) bool {
p, exists := m.plugin(pluginID)
if !exists {
return false
}
return !p.IsDecommissioned()
}
func (m *PluginManager) registeredPlugins() map[string]struct{} {
pluginsByID := make(map[string]struct{})
for _, p := range m.store {
pluginsByID[p.ID] = struct{}{}
}
return pluginsByID
}
func (m *PluginManager) Add(ctx context.Context, pluginID, version string) error {
var pluginZipURL string
if plugin, exists := m.plugin(pluginID); exists {
if !plugin.IsExternalPlugin() {
return plugins.ErrInstallCorePlugin
}
if plugin.Info.Version == version {
return plugins.DuplicateError{
PluginID: plugin.ID,
ExistingPluginDir: plugin.PluginDir,
}
}
// get plugin update information to confirm if upgrading is possible
updateInfo, err := m.pluginInstaller.GetUpdateInfo(ctx, pluginID, version, grafanaComURL)
if err != nil {
return err
}
pluginZipURL = updateInfo.PluginZipURL
// remove existing installation of plugin
err = m.Remove(ctx, plugin.ID)
if err != nil {
return err
}
}
err := m.pluginInstaller.Install(ctx, pluginID, version, m.cfg.PluginsPath, pluginZipURL, grafanaComURL)
if err != nil {
return err
}
err = m.loadPlugins(context.Background(), plugins.External, m.cfg.PluginsPath)
if err != nil {
return err
}
return nil
}
func (m *PluginManager) Remove(ctx context.Context, pluginID string) error {
plugin, exists := m.plugin(pluginID)
if !exists {
return plugins.ErrPluginNotInstalled
}
if !plugin.IsExternalPlugin() {
return plugins.ErrUninstallCorePlugin
}
// extra security check to ensure we only remove plugins that are located in the configured plugins directory
path, err := filepath.Rel(m.cfg.PluginsPath, plugin.PluginDir)
if err != nil || strings.HasPrefix(path, ".."+string(filepath.Separator)) {
return plugins.ErrUninstallOutsideOfPluginDir
}
if m.isRegistered(pluginID) {
err := m.unregisterAndStop(ctx, plugin)
if err != nil {
return err
}
}
return m.pluginInstaller.Uninstall(ctx, plugin.PluginDir)
}