mirror of https://github.com/grafana/grafana.git
501 lines
14 KiB
Go
501 lines
14 KiB
Go
package api
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"sort"
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"github.com/grafana/grafana-plugin-sdk-go/backend"
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"github.com/grafana/grafana/pkg/api/datasource"
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"github.com/grafana/grafana/pkg/api/dtos"
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"github.com/grafana/grafana/pkg/api/response"
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"github.com/grafana/grafana/pkg/bus"
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"github.com/grafana/grafana/pkg/infra/log"
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"github.com/grafana/grafana/pkg/models"
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"github.com/grafana/grafana/pkg/plugins/adapters"
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"github.com/grafana/grafana/pkg/setting"
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"github.com/grafana/grafana/pkg/util"
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"github.com/grafana/grafana/pkg/web"
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)
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var datasourcesLogger = log.New("datasources")
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func (hs *HTTPServer) GetDataSources(c *models.ReqContext) response.Response {
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query := models.GetDataSourcesQuery{OrgId: c.OrgId, DataSourceLimit: hs.Cfg.DataSourceLimit}
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if err := bus.Dispatch(&query); err != nil {
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return response.Error(500, "Failed to query datasources", err)
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}
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result := make(dtos.DataSourceList, 0)
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for _, ds := range query.Result {
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dsItem := dtos.DataSourceListItemDTO{
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OrgId: ds.OrgId,
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Id: ds.Id,
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UID: ds.Uid,
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Name: ds.Name,
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Url: ds.Url,
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Type: ds.Type,
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TypeName: ds.Type,
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Access: ds.Access,
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Password: ds.Password,
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Database: ds.Database,
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User: ds.User,
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BasicAuth: ds.BasicAuth,
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IsDefault: ds.IsDefault,
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JsonData: ds.JsonData,
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ReadOnly: ds.ReadOnly,
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}
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if plugin := hs.PluginManager.GetDataSource(ds.Type); plugin != nil {
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dsItem.TypeLogoUrl = plugin.Info.Logos.Small
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dsItem.TypeName = plugin.Name
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} else {
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dsItem.TypeLogoUrl = "public/img/icn-datasource.svg"
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}
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result = append(result, dsItem)
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}
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sort.Sort(result)
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return response.JSON(200, &result)
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}
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func GetDataSourceById(c *models.ReqContext) response.Response {
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query := models.GetDataSourceQuery{
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Id: c.ParamsInt64(":id"),
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OrgId: c.OrgId,
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}
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if err := bus.DispatchCtx(c.Req.Context(), &query); err != nil {
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if errors.Is(err, models.ErrDataSourceNotFound) {
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return response.Error(404, "Data source not found", nil)
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}
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if errors.Is(err, models.ErrDataSourceIdentifierNotSet) {
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return response.Error(400, "Datasource id is missing", nil)
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}
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return response.Error(500, "Failed to query datasources", err)
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}
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ds := query.Result
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dtos := convertModelToDtos(ds)
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return response.JSON(200, &dtos)
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}
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func (hs *HTTPServer) DeleteDataSourceById(c *models.ReqContext) response.Response {
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id := c.ParamsInt64(":id")
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if id <= 0 {
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return response.Error(400, "Missing valid datasource id", nil)
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}
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ds, err := getRawDataSourceById(c.Req.Context(), id, c.OrgId)
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if err != nil {
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if errors.Is(err, models.ErrDataSourceNotFound) {
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return response.Error(404, "Data source not found", nil)
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}
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return response.Error(400, "Failed to delete datasource", nil)
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}
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if ds.ReadOnly {
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return response.Error(403, "Cannot delete read-only data source", nil)
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}
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cmd := &models.DeleteDataSourceCommand{ID: id, OrgID: c.OrgId}
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err = bus.DispatchCtx(c.Req.Context(), cmd)
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if err != nil {
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return response.Error(500, "Failed to delete datasource", err)
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}
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hs.Live.HandleDatasourceDelete(c.OrgId, ds.Uid)
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return response.Success("Data source deleted")
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}
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// GET /api/datasources/uid/:uid
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func GetDataSourceByUID(c *models.ReqContext) response.Response {
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ds, err := getRawDataSourceByUID(c.Req.Context(), web.Params(c.Req)[":uid"], c.OrgId)
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if err != nil {
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if errors.Is(err, models.ErrDataSourceNotFound) {
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return response.Error(404, "Data source not found", nil)
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}
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return response.Error(500, "Failed to query datasources", err)
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}
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dtos := convertModelToDtos(ds)
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return response.JSON(200, &dtos)
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}
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// DELETE /api/datasources/uid/:uid
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func (hs *HTTPServer) DeleteDataSourceByUID(c *models.ReqContext) response.Response {
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uid := web.Params(c.Req)[":uid"]
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if uid == "" {
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return response.Error(400, "Missing datasource uid", nil)
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}
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ds, err := getRawDataSourceByUID(c.Req.Context(), uid, c.OrgId)
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if err != nil {
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if errors.Is(err, models.ErrDataSourceNotFound) {
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return response.Error(404, "Data source not found", nil)
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}
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return response.Error(400, "Failed to delete datasource", nil)
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}
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if ds.ReadOnly {
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return response.Error(403, "Cannot delete read-only data source", nil)
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}
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cmd := &models.DeleteDataSourceCommand{UID: uid, OrgID: c.OrgId}
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err = bus.DispatchCtx(c.Req.Context(), cmd)
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if err != nil {
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return response.Error(500, "Failed to delete datasource", err)
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}
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hs.Live.HandleDatasourceDelete(c.OrgId, ds.Uid)
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return response.Success("Data source deleted")
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}
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func (hs *HTTPServer) DeleteDataSourceByName(c *models.ReqContext) response.Response {
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name := web.Params(c.Req)[":name"]
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if name == "" {
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return response.Error(400, "Missing valid datasource name", nil)
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}
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getCmd := &models.GetDataSourceQuery{Name: name, OrgId: c.OrgId}
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if err := bus.DispatchCtx(c.Req.Context(), getCmd); err != nil {
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if errors.Is(err, models.ErrDataSourceNotFound) {
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return response.Error(404, "Data source not found", nil)
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}
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return response.Error(500, "Failed to delete datasource", err)
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}
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if getCmd.Result.ReadOnly {
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return response.Error(403, "Cannot delete read-only data source", nil)
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}
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cmd := &models.DeleteDataSourceCommand{Name: name, OrgID: c.OrgId}
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err := bus.DispatchCtx(c.Req.Context(), cmd)
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if err != nil {
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return response.Error(500, "Failed to delete datasource", err)
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}
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hs.Live.HandleDatasourceDelete(c.OrgId, getCmd.Result.Uid)
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return response.JSON(200, util.DynMap{
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"message": "Data source deleted",
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"id": getCmd.Result.Id,
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})
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}
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func validateURL(tp string, u string) response.Response {
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if u != "" {
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if _, err := datasource.ValidateURL(tp, u); err != nil {
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datasourcesLogger.Error("Received invalid data source URL as part of data source command",
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"url", u)
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return response.Error(400, fmt.Sprintf("Validation error, invalid URL: %q", u), err)
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}
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}
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return nil
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}
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func AddDataSource(c *models.ReqContext, cmd models.AddDataSourceCommand) response.Response {
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datasourcesLogger.Debug("Received command to add data source", "url", cmd.Url)
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cmd.OrgId = c.OrgId
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if resp := validateURL(cmd.Type, cmd.Url); resp != nil {
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return resp
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}
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if err := bus.DispatchCtx(c.Req.Context(), &cmd); err != nil {
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if errors.Is(err, models.ErrDataSourceNameExists) || errors.Is(err, models.ErrDataSourceUidExists) {
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return response.Error(409, err.Error(), err)
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}
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return response.Error(500, "Failed to add datasource", err)
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}
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ds := convertModelToDtos(cmd.Result)
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return response.JSON(200, util.DynMap{
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"message": "Datasource added",
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"id": cmd.Result.Id,
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"name": cmd.Result.Name,
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"datasource": ds,
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})
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}
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func (hs *HTTPServer) UpdateDataSource(c *models.ReqContext, cmd models.UpdateDataSourceCommand) response.Response {
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datasourcesLogger.Debug("Received command to update data source", "url", cmd.Url)
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cmd.OrgId = c.OrgId
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cmd.Id = c.ParamsInt64(":id")
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if resp := validateURL(cmd.Type, cmd.Url); resp != nil {
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return resp
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}
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err := hs.fillWithSecureJSONData(c.Req.Context(), &cmd)
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if err != nil {
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return response.Error(500, "Failed to update datasource", err)
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}
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err = bus.DispatchCtx(c.Req.Context(), &cmd)
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if err != nil {
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if errors.Is(err, models.ErrDataSourceUpdatingOldVersion) {
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return response.Error(409, "Datasource has already been updated by someone else. Please reload and try again", err)
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}
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return response.Error(500, "Failed to update datasource", err)
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}
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query := models.GetDataSourceQuery{
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Id: cmd.Id,
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OrgId: c.OrgId,
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}
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if err := bus.DispatchCtx(c.Req.Context(), &query); err != nil {
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if errors.Is(err, models.ErrDataSourceNotFound) {
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return response.Error(404, "Data source not found", nil)
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}
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return response.Error(500, "Failed to query datasource", err)
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}
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datasourceDTO := convertModelToDtos(query.Result)
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hs.Live.HandleDatasourceUpdate(c.OrgId, datasourceDTO.UID)
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return response.JSON(200, util.DynMap{
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"message": "Datasource updated",
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"id": cmd.Id,
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"name": cmd.Name,
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"datasource": datasourceDTO,
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})
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}
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func (hs *HTTPServer) fillWithSecureJSONData(ctx context.Context, cmd *models.UpdateDataSourceCommand) error {
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if len(cmd.SecureJsonData) == 0 {
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return nil
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}
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ds, err := getRawDataSourceById(ctx, cmd.Id, cmd.OrgId)
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if err != nil {
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return err
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}
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if ds.ReadOnly {
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return models.ErrDatasourceIsReadOnly
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}
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secureJSONData, err := hs.EncryptionService.DecryptJsonData(ctx, ds.SecureJsonData, setting.SecretKey)
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if err != nil {
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return err
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}
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for k, v := range secureJSONData {
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if _, ok := cmd.SecureJsonData[k]; !ok {
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cmd.SecureJsonData[k] = v
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}
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}
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return nil
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}
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func getRawDataSourceById(ctx context.Context, id int64, orgID int64) (*models.DataSource, error) {
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query := models.GetDataSourceQuery{
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Id: id,
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OrgId: orgID,
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}
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if err := bus.DispatchCtx(ctx, &query); err != nil {
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return nil, err
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}
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return query.Result, nil
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}
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func getRawDataSourceByUID(ctx context.Context, uid string, orgID int64) (*models.DataSource, error) {
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query := models.GetDataSourceQuery{
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Uid: uid,
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OrgId: orgID,
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}
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if err := bus.DispatchCtx(ctx, &query); err != nil {
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return nil, err
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}
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return query.Result, nil
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}
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// Get /api/datasources/name/:name
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func GetDataSourceByName(c *models.ReqContext) response.Response {
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query := models.GetDataSourceQuery{Name: web.Params(c.Req)[":name"], OrgId: c.OrgId}
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if err := bus.DispatchCtx(c.Req.Context(), &query); err != nil {
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if errors.Is(err, models.ErrDataSourceNotFound) {
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return response.Error(404, "Data source not found", nil)
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}
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return response.Error(500, "Failed to query datasources", err)
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}
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dtos := convertModelToDtos(query.Result)
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return response.JSON(200, &dtos)
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}
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// Get /api/datasources/id/:name
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func GetDataSourceIdByName(c *models.ReqContext) response.Response {
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query := models.GetDataSourceQuery{Name: web.Params(c.Req)[":name"], OrgId: c.OrgId}
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if err := bus.DispatchCtx(c.Req.Context(), &query); err != nil {
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if errors.Is(err, models.ErrDataSourceNotFound) {
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return response.Error(404, "Data source not found", nil)
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}
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return response.Error(500, "Failed to query datasources", err)
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}
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ds := query.Result
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dtos := dtos.AnyId{
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Id: ds.Id,
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}
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return response.JSON(200, &dtos)
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}
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// /api/datasources/:id/resources/*
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func (hs *HTTPServer) CallDatasourceResource(c *models.ReqContext) {
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datasourceID := c.ParamsInt64(":id")
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ds, err := hs.DataSourceCache.GetDatasource(datasourceID, c.SignedInUser, c.SkipCache)
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if err != nil {
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if errors.Is(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 := hs.PluginManager.GetDataSource(ds.Type)
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if plugin == nil {
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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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dsInstanceSettings, err := adapters.ModelToInstanceSettings(ds, hs.decryptSecureJsonDataFn())
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if err != nil {
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c.JsonApiErr(500, "Unable to process datasource instance model", err)
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}
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pCtx := backend.PluginContext{
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User: adapters.BackendUserFromSignedInUser(c.SignedInUser),
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OrgID: c.OrgId,
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PluginID: plugin.Id,
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DataSourceInstanceSettings: dsInstanceSettings,
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}
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hs.BackendPluginManager.CallResource(pCtx, c, web.Params(c.Req)["*"])
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}
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func convertModelToDtos(ds *models.DataSource) dtos.DataSource {
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dto := dtos.DataSource{
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Id: ds.Id,
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UID: ds.Uid,
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OrgId: ds.OrgId,
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Name: ds.Name,
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Url: ds.Url,
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Type: ds.Type,
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Access: ds.Access,
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Password: ds.Password,
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Database: ds.Database,
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User: ds.User,
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BasicAuth: ds.BasicAuth,
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BasicAuthUser: ds.BasicAuthUser,
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BasicAuthPassword: ds.BasicAuthPassword,
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WithCredentials: ds.WithCredentials,
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IsDefault: ds.IsDefault,
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JsonData: ds.JsonData,
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SecureJsonFields: map[string]bool{},
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Version: ds.Version,
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ReadOnly: ds.ReadOnly,
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}
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for k, v := range ds.SecureJsonData {
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if len(v) > 0 {
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dto.SecureJsonFields[k] = true
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}
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}
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return dto
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}
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// CheckDatasourceHealth sends a health check request to the plugin datasource
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// /api/datasource/:id/health
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func (hs *HTTPServer) CheckDatasourceHealth(c *models.ReqContext) response.Response {
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datasourceID := c.ParamsInt64(":id")
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ds, err := hs.DataSourceCache.GetDatasource(datasourceID, c.SignedInUser, c.SkipCache)
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if err != nil {
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if errors.Is(err, models.ErrDataSourceAccessDenied) {
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return response.Error(403, "Access denied to datasource", err)
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}
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return response.Error(500, "Unable to load datasource metadata", err)
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}
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plugin := hs.PluginManager.GetDataSource(ds.Type)
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if plugin == nil {
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return response.Error(500, "Unable to find datasource plugin", err)
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}
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dsInstanceSettings, err := adapters.ModelToInstanceSettings(ds, hs.decryptSecureJsonDataFn())
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if err != nil {
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return response.Error(500, "Unable to get datasource model", err)
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}
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pCtx := backend.PluginContext{
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User: adapters.BackendUserFromSignedInUser(c.SignedInUser),
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OrgID: c.OrgId,
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PluginID: plugin.Id,
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DataSourceInstanceSettings: dsInstanceSettings,
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}
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resp, err := hs.BackendPluginManager.CheckHealth(c.Req.Context(), pCtx)
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if err != nil {
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return translatePluginRequestErrorToAPIError(err)
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}
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payload := map[string]interface{}{
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"status": resp.Status.String(),
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"message": resp.Message,
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}
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// Unmarshal JSONDetails if it's not empty.
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if len(resp.JSONDetails) > 0 {
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var jsonDetails map[string]interface{}
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err = json.Unmarshal(resp.JSONDetails, &jsonDetails)
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if err != nil {
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return response.Error(500, "Failed to unmarshal detailed response from backend plugin", err)
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}
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payload["details"] = jsonDetails
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}
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if resp.Status != backend.HealthStatusOk {
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return response.JSON(400, payload)
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}
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return response.JSON(200, payload)
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}
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func (hs *HTTPServer) decryptSecureJsonDataFn() func(map[string][]byte) map[string]string {
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return func(m map[string][]byte) map[string]string {
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decryptedJsonData, err := hs.EncryptionService.DecryptJsonData(context.Background(), m, setting.SecretKey)
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if err != nil {
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hs.log.Error("Failed to decrypt secure json data", "error", err)
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}
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return decryptedJsonData
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}
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}
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