grafana/pkg/api/dtos/models.go
Jesse Weaver 0371884cdd
Start of dashboard query API (#49547)
This PR adds endpoints for public dashboards to retrieve data from the backend (trusted) query engine. It works by executing queries defined on the backend without any user input and does not support template variables.

* Public dashboard query API
* Create new API on service for building metric request
* Flesh out testing, implement BuildPublicDashboardMetricRequest
* Test for errors and missing panels
* Refactor tests, add supporting code for multiple datasources
* Handle queries from multiple datasources
* Explicitly pass no user for querying public dashboard

Co-authored-by: Jeff Levin <jeff@levinology.com>
2022-06-13 15:23:56 -08:00

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package dtos
import (
"crypto/md5"
"fmt"
"net/http"
"regexp"
"strings"
"github.com/grafana/grafana/pkg/components/simplejson"
"github.com/grafana/grafana/pkg/infra/log"
"github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/setting"
)
var regNonAlphaNumeric = regexp.MustCompile("[^a-zA-Z0-9]+")
var mlog = log.New("models")
type AnyId struct {
Id int64 `json:"id"`
}
type LoginCommand struct {
User string `json:"user" binding:"Required"`
Password string `json:"password" binding:"Required"`
Remember bool `json:"remember"`
}
type CurrentUser struct {
IsSignedIn bool `json:"isSignedIn"`
Id int64 `json:"id"`
ExternalUserId string `json:"externalUserId"`
Login string `json:"login"`
Email string `json:"email"`
Name string `json:"name"`
LightTheme bool `json:"lightTheme"`
OrgCount int `json:"orgCount"`
OrgId int64 `json:"orgId"`
OrgName string `json:"orgName"`
OrgRole models.RoleType `json:"orgRole"`
IsGrafanaAdmin bool `json:"isGrafanaAdmin"`
GravatarUrl string `json:"gravatarUrl"`
Timezone string `json:"timezone"`
WeekStart string `json:"weekStart"`
Locale string `json:"locale"`
HelpFlags1 models.HelpFlags1 `json:"helpFlags1"`
HasEditPermissionInFolders bool `json:"hasEditPermissionInFolders"`
Permissions UserPermissionsMap `json:"permissions,omitempty"`
}
type UserPermissionsMap map[string]bool
// swagger:model
type MetricRequest struct {
// From Start time in epoch timestamps in milliseconds or relative using Grafana time units.
// required: true
// example: now-1h
From string `json:"from"`
// To End time in epoch timestamps in milliseconds or relative using Grafana time units.
// required: true
// example: now
To string `json:"to"`
// queries.refId Specifies an identifier of the query. Is optional and default to “A”.
// queries.datasourceId Specifies the data source to be queried. Each query in the request must have an unique datasourceId.
// queries.maxDataPoints - Species maximum amount of data points that dashboard panel can render. Is optional and default to 100.
// queries.intervalMs - Specifies the time interval in milliseconds of time series. Is optional and defaults to 1000.
// required: true
// example: [ { "refId": "A", "intervalMs": 86400000, "maxDataPoints": 1092, "datasource":{ "uid":"PD8C576611E62080A" }, "rawSql": "SELECT 1 as valueOne, 2 as valueTwo", "format": "table" } ]
Queries []*simplejson.Json `json:"queries"`
// required: false
Debug bool `json:"debug"`
HTTPRequest *http.Request `json:"-"`
}
func (mr *MetricRequest) CloneWithQueries(queries []*simplejson.Json) MetricRequest {
return MetricRequest{
From: mr.From,
To: mr.To,
Queries: queries,
Debug: mr.Debug,
HTTPRequest: mr.HTTPRequest,
}
}
func GetGravatarUrl(text string) string {
if setting.DisableGravatar {
return setting.AppSubUrl + "/public/img/user_profile.png"
}
if text == "" {
return ""
}
hash, _ := GetGravatarHash(text)
return fmt.Sprintf(setting.AppSubUrl+"/avatar/%x", hash)
}
func GetGravatarHash(text string) ([]byte, bool) {
if text == "" {
return make([]byte, 0), false
}
hasher := md5.New()
if _, err := hasher.Write([]byte(strings.ToLower(text))); err != nil {
mlog.Warn("Failed to hash text", "err", err)
}
return hasher.Sum(nil), true
}
func GetGravatarUrlWithDefault(text string, defaultText string) string {
if text != "" {
return GetGravatarUrl(text)
}
text = regNonAlphaNumeric.ReplaceAllString(defaultText, "") + "@localhost"
return GetGravatarUrl(text)
}
func IsHiddenUser(userLogin string, signedInUser *models.SignedInUser, cfg *setting.Cfg) bool {
if userLogin == "" || signedInUser.IsGrafanaAdmin || userLogin == signedInUser.Login {
return false
}
if _, hidden := cfg.HiddenUsers[userLogin]; hidden {
return true
}
return false
}