Files
mattermost/api4/config.go
Jesús Espino 9cc5089af8 Moving mlog to corelibs (#16915)
* Moving mlog to corelibs

* Regenerating app layers

* Fix golangci-lint problem

* Fixing golangci-lint errors

* Renaming from corelibs to shared

* Renaming from corelibs to shared

* Fixing import

* Fixing merge problems

* Fixing build
2021-03-05 09:18:37 +01:00

370 lines
12 KiB
Go

// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
package api4
import (
"fmt"
"net/http"
"reflect"
"strings"
"github.com/mattermost/mattermost-server/v5/audit"
"github.com/mattermost/mattermost-server/v5/config"
"github.com/mattermost/mattermost-server/v5/model"
"github.com/mattermost/mattermost-server/v5/shared/mlog"
"github.com/mattermost/mattermost-server/v5/utils"
)
var writeFilter func(c *Context, structField reflect.StructField) bool
var readFilter func(c *Context, structField reflect.StructField) bool
var permissionMap map[string]*model.Permission
type filterType string
const filterTypeWrite filterType = "write"
const filterTypeRead filterType = "read"
func (api *API) InitConfig() {
api.BaseRoutes.ApiRoot.Handle("/config", api.ApiSessionRequired(getConfig)).Methods("GET")
api.BaseRoutes.ApiRoot.Handle("/config", api.ApiSessionRequired(updateConfig)).Methods("PUT")
api.BaseRoutes.ApiRoot.Handle("/config/patch", api.ApiSessionRequired(patchConfig)).Methods("PUT")
api.BaseRoutes.ApiRoot.Handle("/config/reload", api.ApiSessionRequired(configReload)).Methods("POST")
api.BaseRoutes.ApiRoot.Handle("/config/client", api.ApiHandler(getClientConfig)).Methods("GET")
api.BaseRoutes.ApiRoot.Handle("/config/environment", api.ApiSessionRequired(getEnvironmentConfig)).Methods("GET")
api.BaseRoutes.ApiRoot.Handle("/config/migrate", api.ApiSessionRequired(migrateConfig)).Methods("POST")
}
func init() {
writeFilter = makeFilterConfigByPermission(filterTypeWrite)
readFilter = makeFilterConfigByPermission(filterTypeRead)
permissionMap = map[string]*model.Permission{}
for _, p := range model.AllPermissions {
permissionMap[p.Id] = p
}
}
func getConfig(c *Context, w http.ResponseWriter, r *http.Request) {
if !c.App.SessionHasPermissionToAny(*c.App.Session(), model.SysconsoleReadPermissions) {
c.SetPermissionError(model.SysconsoleReadPermissions...)
return
}
auditRec := c.MakeAuditRecord("getConfig", audit.Fail)
defer c.LogAuditRec(auditRec)
cfg, err := config.Merge(&model.Config{}, c.App.GetSanitizedConfig(), &utils.MergeConfig{
StructFieldFilter: func(structField reflect.StructField, base, patch reflect.Value) bool {
return readFilter(c, structField)
},
})
if err != nil {
c.Err = model.NewAppError("getConfig", "api.config.get_config.restricted_merge.app_error", nil, err.Error(), http.StatusInternalServerError)
}
auditRec.Success()
w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
if c.App.Srv().License() != nil && *c.App.Srv().License().Features.Cloud {
w.Write([]byte(cfg.ToJsonFiltered(model.ConfigAccessTagType, model.ConfigAccessTagCloudRestrictable)))
} else {
w.Write([]byte(cfg.ToJson()))
}
}
func configReload(c *Context, w http.ResponseWriter, r *http.Request) {
auditRec := c.MakeAuditRecord("configReload", audit.Fail)
defer c.LogAuditRec(auditRec)
if !c.App.SessionHasPermissionToAny(*c.App.Session(), model.SysconsoleReadPermissions) {
c.SetPermissionError(model.SysconsoleReadPermissions...)
return
}
if *c.App.Config().ExperimentalSettings.RestrictSystemAdmin {
c.Err = model.NewAppError("configReload", "api.restricted_system_admin", nil, "", http.StatusBadRequest)
return
}
c.App.ReloadConfig()
auditRec.Success()
w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
ReturnStatusOK(w)
}
func updateConfig(c *Context, w http.ResponseWriter, r *http.Request) {
cfg := model.ConfigFromJson(r.Body)
if cfg == nil {
c.SetInvalidParam("config")
return
}
auditRec := c.MakeAuditRecord("updateConfig", audit.Fail)
defer c.LogAuditRec(auditRec)
cfg.SetDefaults()
if !c.App.SessionHasPermissionToAny(*c.App.Session(), model.SysconsoleWritePermissions) {
c.SetPermissionError(model.SysconsoleWritePermissions...)
return
}
appCfg := c.App.Config()
if *appCfg.ServiceSettings.SiteURL != "" && *cfg.ServiceSettings.SiteURL == "" {
c.Err = model.NewAppError("updateConfig", "api.config.update_config.clear_siteurl.app_error", nil, "", http.StatusBadRequest)
return
}
var err1 error
cfg, err1 = config.Merge(appCfg, cfg, &utils.MergeConfig{
StructFieldFilter: func(structField reflect.StructField, base, patch reflect.Value) bool {
return writeFilter(c, structField)
},
})
if err1 != nil {
c.Err = model.NewAppError("updateConfig", "api.config.update_config.restricted_merge.app_error", nil, err1.Error(), http.StatusInternalServerError)
}
// Do not allow plugin uploads to be toggled through the API
cfg.PluginSettings.EnableUploads = appCfg.PluginSettings.EnableUploads
// Do not allow certificates to be changed through the API
cfg.PluginSettings.SignaturePublicKeyFiles = appCfg.PluginSettings.SignaturePublicKeyFiles
c.App.HandleMessageExportConfig(cfg, appCfg)
err := cfg.IsValid()
if err != nil {
c.Err = err
return
}
err = c.App.SaveConfig(cfg, true)
if err != nil {
c.Err = err
return
}
cfg, mergeErr := config.Merge(&model.Config{}, c.App.GetSanitizedConfig(), &utils.MergeConfig{
StructFieldFilter: func(structField reflect.StructField, base, patch reflect.Value) bool {
return readFilter(c, structField)
},
})
if mergeErr != nil {
c.Err = model.NewAppError("getConfig", "api.config.update_config.restricted_merge.app_error", nil, err.Error(), http.StatusInternalServerError)
}
auditRec.Success()
c.LogAudit("updateConfig")
w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
if c.App.Srv().License() != nil && *c.App.Srv().License().Features.Cloud {
w.Write([]byte(cfg.ToJsonFiltered(model.ConfigAccessTagType, model.ConfigAccessTagCloudRestrictable)))
} else {
w.Write([]byte(cfg.ToJson()))
}
}
func getClientConfig(c *Context, w http.ResponseWriter, r *http.Request) {
format := r.URL.Query().Get("format")
if format == "" {
c.Err = model.NewAppError("getClientConfig", "api.config.client.old_format.app_error", nil, "", http.StatusNotImplemented)
return
}
if format != "old" {
c.SetInvalidParam("format")
return
}
var config map[string]string
if c.App.Session().UserId == "" {
config = c.App.LimitedClientConfigWithComputed()
} else {
config = c.App.ClientConfigWithComputed()
}
w.Write([]byte(model.MapToJson(config)))
}
func getEnvironmentConfig(c *Context, w http.ResponseWriter, r *http.Request) {
if !c.App.SessionHasPermissionTo(*c.App.Session(), model.PERMISSION_SYSCONSOLE_READ_ENVIRONMENT) {
c.SetPermissionError(model.PERMISSION_SYSCONSOLE_READ_ENVIRONMENT)
return
}
envConfig := c.App.GetEnvironmentConfig()
w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
w.Write([]byte(model.StringInterfaceToJson(envConfig)))
}
func patchConfig(c *Context, w http.ResponseWriter, r *http.Request) {
cfg := model.ConfigFromJson(r.Body)
if cfg == nil {
c.SetInvalidParam("config")
return
}
auditRec := c.MakeAuditRecord("patchConfig", audit.Fail)
defer c.LogAuditRec(auditRec)
if !c.App.SessionHasPermissionToAny(*c.App.Session(), model.SysconsoleWritePermissions) {
c.SetPermissionError(model.SysconsoleWritePermissions...)
return
}
appCfg := c.App.Config()
if *appCfg.ServiceSettings.SiteURL != "" && cfg.ServiceSettings.SiteURL != nil && *cfg.ServiceSettings.SiteURL == "" {
c.Err = model.NewAppError("patchConfig", "api.config.update_config.clear_siteurl.app_error", nil, "", http.StatusBadRequest)
return
}
filterFn := func(structField reflect.StructField, base, patch reflect.Value) bool {
return writeFilter(c, structField)
}
// Do not allow plugin uploads to be toggled through the API
if cfg.PluginSettings.EnableUploads != nil && *cfg.PluginSettings.EnableUploads != *appCfg.PluginSettings.EnableUploads {
c.Err = model.NewAppError("patchConfig", "api.config.update_config.not_allowed_security.app_error", map[string]interface{}{"Name": "PluginSettings.EnableUploads"}, "", http.StatusForbidden)
return
}
if cfg.MessageExportSettings.EnableExport != nil {
c.App.HandleMessageExportConfig(cfg, appCfg)
}
updatedCfg, mergeErr := config.Merge(appCfg, cfg, &utils.MergeConfig{
StructFieldFilter: filterFn,
})
if mergeErr != nil {
c.Err = model.NewAppError("patchConfig", "api.config.update_config.restricted_merge.app_error", nil, mergeErr.Error(), http.StatusInternalServerError)
return
}
err := updatedCfg.IsValid()
if err != nil {
c.Err = err
return
}
err = c.App.SaveConfig(updatedCfg, true)
if err != nil {
c.Err = err
return
}
auditRec.Success()
cfg, mergeErr = config.Merge(&model.Config{}, c.App.GetSanitizedConfig(), &utils.MergeConfig{
StructFieldFilter: func(structField reflect.StructField, base, patch reflect.Value) bool {
return readFilter(c, structField)
},
})
if mergeErr != nil {
c.Err = model.NewAppError("getConfig", "api.config.patch_config.restricted_merge.app_error", nil, err.Error(), http.StatusInternalServerError)
}
w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
if c.App.Srv().License() != nil && *c.App.Srv().License().Features.Cloud {
w.Write([]byte(cfg.ToJsonFiltered(model.ConfigAccessTagType, model.ConfigAccessTagCloudRestrictable)))
} else {
w.Write([]byte(cfg.ToJson()))
}
}
func makeFilterConfigByPermission(accessType filterType) func(c *Context, structField reflect.StructField) bool {
return func(c *Context, structField reflect.StructField) bool {
if structField.Type.Kind() == reflect.Struct {
return true
}
tagPermissions := strings.Split(structField.Tag.Get("access"), ",")
// If there are no access tag values and the role has manage_system, no need to continue
// checking permissions.
if len(tagPermissions) == 0 {
if c.App.SessionHasPermissionTo(*c.App.Session(), model.PERMISSION_MANAGE_SYSTEM) {
return true
}
}
// one iteration for write_restrictable value, it could be anywhere in the order of values
for _, val := range tagPermissions {
tagValue := strings.TrimSpace(val)
if tagValue == "" {
continue
}
// ConfigAccessTagWriteRestrictable trumps all other permissions
if tagValue == model.ConfigAccessTagWriteRestrictable || tagValue == model.ConfigAccessTagCloudRestrictable {
if *c.App.Config().ExperimentalSettings.RestrictSystemAdmin && accessType == filterTypeWrite {
return false
}
continue
}
}
// another iteration for permissions checks of other tag values
for _, val := range tagPermissions {
tagValue := strings.TrimSpace(val)
if tagValue == "" {
continue
}
if tagValue == model.ConfigAccessTagWriteRestrictable {
continue
}
if tagValue == model.ConfigAccessTagCloudRestrictable {
continue
}
permissionID := fmt.Sprintf("sysconsole_%s_%s", accessType, tagValue)
if permission, ok := permissionMap[permissionID]; ok {
if c.App.SessionHasPermissionTo(*c.App.Session(), permission) {
return true
}
} else {
mlog.Warn("Unrecognized config permissions tag value.", mlog.String("tag_value", permissionID))
}
}
// with manage_system, default to allow, otherwise default not-allow
return c.App.SessionHasPermissionTo(*c.App.Session(), model.PERMISSION_MANAGE_SYSTEM)
}
}
func migrateConfig(c *Context, w http.ResponseWriter, r *http.Request) {
props := model.StringInterfaceFromJson(r.Body)
from, ok := props["from"].(string)
if !ok {
c.SetInvalidParam("from")
return
}
to, ok := props["to"].(string)
if !ok {
c.SetInvalidParam("to")
return
}
auditRec := c.MakeAuditRecord("migrateConfig", audit.Fail)
auditRec.AddMeta("from", from)
auditRec.AddMeta("to", to)
defer c.LogAuditRec(auditRec)
if !c.App.SessionHasPermissionTo(*c.App.Session(), model.PERMISSION_MANAGE_SYSTEM) {
c.SetPermissionError(model.PERMISSION_MANAGE_SYSTEM)
return
}
err := config.Migrate(from, to)
if err != nil {
c.Err = model.NewAppError("migrateConfig", "api.config.migrate_config.app_error", nil, err.Error(), http.StatusInternalServerError)
return
}
auditRec.Success()
ReturnStatusOK(w)
}