MM-22273 New auditing system (phase 1) (#13967)

* New auditing API outputting to syslog via TLS

* New config section for specifying remote syslog server IP, port, and cert.

* Legacy audit API retained for access history feature

api4/scheme.go

@@ -6,6 +6,7 @@ package api4
 import (
 	"net/http"
 
+	"github.com/mattermost/mattermost-server/v5/audit"
 	"github.com/mattermost/mattermost-server/v5/model"
 )
 
@@ -26,6 +27,12 @@ func createScheme(c *Context, w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	auditRec := c.MakeAuditRecord("createScheme", audit.Fail)
+	defer c.LogAuditRec(auditRec)
+	auditRec.AddMeta("scheme_name", scheme.Name)
+	auditRec.AddMeta("scheme_display", scheme.DisplayName)
+	auditRec.AddMeta("scheme_desc", scheme.Description)
+
 	if c.App.License() == nil || !*c.App.License().Features.CustomPermissionsSchemes {
 		c.Err = model.NewAppError("Api4.CreateScheme", "api.scheme.create_scheme.license.error", nil, "", http.StatusNotImplemented)
 		return
@@ -42,6 +49,9 @@ func createScheme(c *Context, w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	auditRec.Success()
+	auditRec.AddMeta("scheme_id", scheme.Id)
+
 	w.WriteHeader(http.StatusCreated)
 	w.Write([]byte(scheme.ToJson()))
 }
@@ -161,6 +171,13 @@ func patchScheme(c *Context, w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	auditRec := c.MakeAuditRecord("patchScheme", audit.Fail)
+	defer c.LogAuditRec(auditRec)
+	auditRec.AddMeta("scheme_id", c.Params.SchemeId)
+	auditRec.AddMeta("new_scheme_name", patch.Name)
+	auditRec.AddMeta("new_scheme_display", patch.DisplayName)
+	auditRec.AddMeta("new_scheme_desc", patch.Description)
+
 	if c.App.License() == nil || !*c.App.License().Features.CustomPermissionsSchemes {
 		c.Err = model.NewAppError("Api4.PatchScheme", "api.scheme.patch_scheme.license.error", nil, "", http.StatusNotImplemented)
 		return
@@ -171,6 +188,9 @@ func patchScheme(c *Context, w http.ResponseWriter, r *http.Request) {
 		c.Err = err
 		return
 	}
+	auditRec.AddMeta("old_scheme_name", scheme.Name)
+	auditRec.AddMeta("old_scheme_display", scheme.DisplayName)
+	auditRec.AddMeta("old_scheme_desc", scheme.Description)
 
 	if !c.App.SessionHasPermissionTo(*c.App.Session(), model.PERMISSION_MANAGE_SYSTEM) {
 		c.SetPermissionError(model.PERMISSION_MANAGE_SYSTEM)
@@ -183,7 +203,9 @@ func patchScheme(c *Context, w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	auditRec.Success()
 	c.LogAudit("")
+
 	w.Write([]byte(scheme.ToJson()))
 }
 
@@ -193,6 +215,10 @@ func deleteScheme(c *Context, w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	auditRec := c.MakeAuditRecord("deleteScheme", audit.Fail)
+	defer c.LogAuditRec(auditRec)
+	auditRec.AddMeta("scheme_id", c.Params.SchemeId)
+
 	if c.App.License() == nil || !*c.App.License().Features.CustomPermissionsSchemes {
 		c.Err = model.NewAppError("Api4.DeleteScheme", "api.scheme.delete_scheme.license.error", nil, "", http.StatusNotImplemented)
 		return
@@ -208,5 +234,6 @@ func deleteScheme(c *Context, w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	auditRec.Success()
 	ReturnStatusOK(w)
 }