add exec button

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

authentik/policies/expression/api.py

@@ -1,11 +1,26 @@
 """Expression Policy API"""
 
+from drf_spectacular.utils import OpenApiResponse, extend_schema
+from guardian.shortcuts import get_objects_for_user
+from rest_framework.decorators import action
+from rest_framework.fields import CharField
+from rest_framework.request import Request
+from rest_framework.response import Response
 from rest_framework.viewsets import ModelViewSet
+from structlog.stdlib import get_logger
 
 from authentik.core.api.used_by import UsedByMixin
+from authentik.events.logs import LogEventSerializer, capture_logs
+from authentik.policies.api.exec import PolicyTestResultSerializer, PolicyTestSerializer
 from authentik.policies.api.policies import PolicySerializer
 from authentik.policies.expression.evaluator import PolicyEvaluator
 from authentik.policies.expression.models import ExpressionPolicy
+from authentik.policies.models import PolicyBinding
+from authentik.policies.process import PolicyProcess
+from authentik.policies.types import PolicyRequest
+from authentik.rbac.decorators import permission_required
+
+LOGGER = get_logger()
 
 
 class ExpressionPolicySerializer(PolicySerializer):
@@ -30,3 +45,50 @@ class ExpressionPolicyViewSet(UsedByMixin, ModelViewSet):
     filterset_fields = "__all__"
     ordering = ["name"]
     search_fields = ["name"]
+
+    class ExpressionPolicyTestSerializer(PolicyTestSerializer):
+        """Expression policy test serializer"""
+
+        expression = CharField()
+
+    @permission_required("authentik_policies.view_policy")
+    @extend_schema(
+        request=ExpressionPolicyTestSerializer(),
+        responses={
+            200: PolicyTestResultSerializer(),
+            400: OpenApiResponse(description="Invalid parameters"),
+        },
+    )
+    @action(detail=True, pagination_class=None, filter_backends=[], methods=["POST"])
+    def test(self, request: Request, pk: str) -> Response:
+        """Test policy"""
+        policy = self.get_object()
+        test_params = self.ExpressionPolicyTestSerializer(data=request.data)
+        if not test_params.is_valid():
+            return Response(test_params.errors, status=400)
+
+        # User permission check, only allow policy testing for users that are readable
+        users = get_objects_for_user(request.user, "authentik_core.view_user").filter(
+            pk=test_params.validated_data["user"].pk
+        )
+        if not users.exists():
+            return Response(status=400)
+
+        policy.expression = test_params.validated_data["expression"]
+
+        p_request = PolicyRequest(users.first())
+        p_request.debug = True
+        p_request.set_http_request(self.request)
+        p_request.context = test_params.validated_data.get("context", {})
+
+        proc = PolicyProcess(PolicyBinding(policy=policy), p_request, None)
+        with capture_logs() as logs:
+            result = proc.execute()
+        log_messages = []
+        for log in logs:
+            if log.attributes.get("process", "") == "PolicyProcess":
+                continue
+            log_messages.append(LogEventSerializer(log).data)
+        result.log_messages = log_messages
+        response = PolicyTestResultSerializer(result)
+        return Response(response.data)

schema.yml

@@ -12813,6 +12813,43 @@ paths:
               schema:
                 $ref: '#/components/schemas/GenericError'
           description: ''
+  /policies/expression/{policy_uuid}/test/:
+    post:
+      operationId: policies_expression_test_create
+      description: Test policy
+      parameters:
+      - in: path
+        name: policy_uuid
+        schema:
+          type: string
+          format: uuid
+        description: A UUID string identifying this Expression Policy.
+        required: true
+      tags:
+      - policies
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/ExpressionPolicyTestRequest'
+        required: true
+      security:
+      - authentik: []
+      responses:
+        '200':
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/PolicyTestResult'
+          description: ''
+        '400':
+          description: Invalid parameters
+        '403':
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/GenericError'
+          description: ''
   /policies/expression/{policy_uuid}/used_by/:
     get:
       operationId: policies_expression_used_by_list
@@ -42280,6 +42317,21 @@ components:
       required:
       - expression
       - name
+    ExpressionPolicyTestRequest:
+      type: object
+      description: Expression policy test serializer
+      properties:
+        user:
+          type: integer
+        context:
+          type: object
+          additionalProperties: {}
+        expression:
+          type: string
+          minLength: 1
+      required:
+      - expression
+      - user
     ExtraRoleObjectPermission:
       type: object
       description: User permission with additional object-related data

web/src/admin/policies/PolicyListPage.ts

@@ -8,6 +8,7 @@ import "@goauthentik/admin/policies/password/PasswordPolicyForm";
 import "@goauthentik/admin/policies/reputation/ReputationPolicyForm";
 import "@goauthentik/admin/rbac/ObjectPermissionModal";
 import { DEFAULT_CONFIG } from "@goauthentik/common/api/config";
+import { PFSize } from "@goauthentik/common/enums";
 import { PFColor } from "@goauthentik/elements/Label";
 import "@goauthentik/elements/forms/ConfirmationForm";
 import "@goauthentik/elements/forms/DeleteBulkForm";
@@ -21,7 +22,6 @@ import "@patternfly/elements/pf-tooltip/pf-tooltip.js";
 import { msg, str } from "@lit/localize";
 import { TemplateResult, html } from "lit";
 import { customElement, property } from "lit/decorators.js";
-import { ifDefined } from "lit/directives/if-defined.js";
 
 import { PoliciesApi, Policy } from "@goauthentik/api";
 
@@ -71,7 +71,12 @@ export class PolicyListPage extends TablePage<Policy> {
                           ${msg("Warning: Policy is not assigned.")}
                       </ak-label>`}`,
             html`${item.verboseName}`,
-            html` <ak-forms-modal>
+            html` <ak-forms-modal
+                    size=${item.component === "ak-policy-expression-form"
+                        ? PFSize.XLarge
+                        : PFSize.Large}
+                    ?fullHeight=${item.component === "ak-policy-expression-form"}
+                >
                     <span slot="submit"> ${msg("Update")} </span>
                     <span slot="header"> ${msg(str`Update ${item.verboseName}`)} </span>
                     <ak-proxy-form
@@ -79,7 +84,7 @@ export class PolicyListPage extends TablePage<Policy> {
                         .args=${{
                             instancePk: item.pk,
                         }}
-                        type=${ifDefined(item.component)}
+                        type=${item.component}
                     >
                     </ak-proxy-form>
                     <button slot="trigger" class="pf-c-button pf-m-plain">

web/src/admin/policies/PolicyWizard.ts

@@ -87,7 +87,10 @@ export class PolicyWizard extends AKElement {
                             slot=${`type-${type.component}-${type.modelName}`}
                             .sidebarLabel=${() => msg(str`Create ${type.name}`)}
                         >
-                            <ak-proxy-form type=${type.component}></ak-proxy-form>
+                            <ak-proxy-form
+                                ?showPreview=${false}
+                                type=${type.component}
+                            ></ak-proxy-form>
                         </ak-wizard-page-form>
                     `;
                 })}

web/src/admin/policies/expression/ExpressionPolicyForm.ts

@@ -1,25 +1,64 @@
 import { BasePolicyForm } from "@goauthentik/admin/policies/BasePolicyForm";
 import { DEFAULT_CONFIG } from "@goauthentik/common/api/config";
 import { docLink } from "@goauthentik/common/global";
+import { me } from "@goauthentik/common/users";
 import { first } from "@goauthentik/common/utils";
 import "@goauthentik/elements/CodeMirror";
 import { CodeMirrorMode } from "@goauthentik/elements/CodeMirror";
+import "@goauthentik/elements/EmptyState";
 import "@goauthentik/elements/forms/FormGroup";
 import "@goauthentik/elements/forms/HorizontalFormElement";
+import YAML from "yaml";
 
 import { msg } from "@lit/localize";
-import { TemplateResult, html } from "lit";
-import { customElement } from "lit/decorators.js";
+import { CSSResult, TemplateResult, html, nothing } from "lit";
+import { customElement, property, state } from "lit/decorators.js";
 import { ifDefined } from "lit/directives/if-defined.js";
 
-import { ExpressionPolicy, PoliciesApi } from "@goauthentik/api";
+import PFTitle from "@patternfly/patternfly/components/Title/title.css";
+import PFGrid from "@patternfly/patternfly/layouts/Grid/grid.css";
+import PFStack from "@patternfly/patternfly/layouts/Stack/stack.css";
+
+import {
+    CoreApi,
+    CoreUsersListRequest,
+    ExpressionPolicy,
+    PoliciesApi,
+    PolicyTestResult,
+    ResponseError,
+    SessionUser,
+    User,
+    ValidationErrorFromJSON,
+} from "@goauthentik/api";
 
 @customElement("ak-policy-expression-form")
 export class ExpressionPolicyForm extends BasePolicyForm<ExpressionPolicy> {
-    loadInstance(pk: string): Promise<ExpressionPolicy> {
-        return new PoliciesApi(DEFAULT_CONFIG).policiesExpressionRetrieve({
+    @property({ type: Boolean })
+    showPreview = true;
+
+    @state()
+    preview?: PolicyTestResult;
+
+    @state()
+    previewError?: string[];
+
+    @state()
+    user?: SessionUser;
+
+    @state()
+    previewLoading = false;
+
+    static get styles(): CSSResult[] {
+        return super.styles.concat(PFGrid, PFStack, PFTitle);
+    }
+
+    async loadInstance(pk: string): Promise<ExpressionPolicy> {
+        const policy = await new PoliciesApi(DEFAULT_CONFIG).policiesExpressionRetrieve({
             policyUuid: pk,
         });
+        this.user = await me();
+        await this.refreshPreview(policy);
+        return policy;
     }
 
     async send(data: ExpressionPolicy): Promise<ExpressionPolicy> {
@@ -35,10 +74,196 @@ export class ExpressionPolicyForm extends BasePolicyForm<ExpressionPolicy> {
         }
     }
 
+    _shouldRefresh = false;
+    _timer = 0;
+
+    connectedCallback(): void {
+        super.connectedCallback();
+        if (!this.showPreview) {
+            return;
+        }
+        // Only check if we should update once a second, to prevent spamming API requests
+        // when many fields are edited
+        const minUpdateDelay = 1000;
+        this._timer = setInterval(() => {
+            if (this._shouldRefresh) {
+                this.refreshPreview();
+                this._shouldRefresh = false;
+            }
+        }, minUpdateDelay) as unknown as number;
+    }
+
+    disconnectedCallback(): void {
+        super.disconnectedCallback();
+        if (!this.showPreview) {
+            return;
+        }
+        clearTimeout(this._timer);
+    }
+
+    async refreshPreview(policy?: ExpressionPolicy): Promise<void> {
+        if (!policy) {
+            policy = this.serializeForm();
+            if (!policy) {
+                return;
+            }
+        }
+        this.previewLoading = true;
+        try {
+            interface testpolicy {
+                expression: string;
+                user?: number;
+                context?: { [key: string]: unknown };
+            }
+            const tp = policy as unknown as testpolicy;
+            this.preview = await new PoliciesApi(DEFAULT_CONFIG).policiesExpressionTestCreate({
+                expressionPolicyTestRequest: {
+                    expression: tp.expression,
+                    user: tp.user || this.user?.user.pk || 0,
+                    context: tp.context || {},
+                },
+                policyUuid: this.instancePk || "",
+            });
+            this.previewError = undefined;
+        } catch (exc) {
+            const errorMessage = ValidationErrorFromJSON(
+                await (exc as ResponseError).response.json(),
+            );
+            this.previewError = errorMessage.nonFieldErrors;
+        } finally {
+            this.previewLoading = false;
+        }
+    }
+
     renderForm(): TemplateResult {
+        return html`<div class="pf-l-grid pf-m-gutter">
+            <div class="pf-l-grid__item pf-m-6-col pf-l-stack">
+                <div class="pf-c-form pf-m-horizontal pf-l-stack__item">
+                    ${this.renderEditForm()}
+                </div>
+            </div>
+            <div class="pf-l-grid__item pf-m-6-col">${this.renderPreview()}</div>
+        </div> `;
+    }
+
+    renderPreview(): TemplateResult {
+        return html`
+            <div class="pf-l-grid pf-m-gutter">
+                <div class="pf-c-card pf-l-grid__item pf-m-12-col">
+                    <div class="pf-c-card__title">${msg("Test parameters")}</div>
+                    <div class="pf-c-card__body pf-c-form pf-m-horizontal">
+                        <ak-form-element-horizontal label=${msg("User")} name="user">
+                            <ak-search-select
+                                .fetchObjects=${async (query?: string): Promise<User[]> => {
+                                    const args: CoreUsersListRequest = {
+                                        ordering: "username",
+                                    };
+                                    if (query !== undefined) {
+                                        args.search = query;
+                                    }
+                                    const users = await new CoreApi(DEFAULT_CONFIG).coreUsersList(
+                                        args,
+                                    );
+                                    return users.results;
+                                }}
+                                .renderElement=${(user: User): string => {
+                                    return user.username;
+                                }}
+                                .renderDescription=${(user: User): TemplateResult => {
+                                    return html`${user.name}`;
+                                }}
+                                .value=${(user: User | undefined): number | undefined => {
+                                    return user?.pk;
+                                }}
+                                .selected=${(user: User): boolean => {
+                                    return this.user?.user.pk === user.pk;
+                                }}
+                            >
+                            </ak-search-select>
+                        </ak-form-element-horizontal>
+                        <ak-form-element-horizontal label=${msg("Context")} name="context">
+                            <ak-codemirror mode=${CodeMirrorMode.YAML} value=${YAML.stringify({})}>
+                            </ak-codemirror>
+                        </ak-form-element-horizontal>
+                    </div>
+                    <div class="pf-c-card__footer">
+                        <button
+                            class="pf-c-button pf-m-primary"
+                            @click=${() => {
+                                this.refreshPreview();
+                            }}
+                        >
+                            ${msg("Execute")}
+                        </button>
+                    </div>
+                </div>
+                <div class="pf-c-card pf-l-grid__item pf-m-12-col">
+                    <div class="pf-c-card__title">${msg("Test results")}</div>
+                    ${this.previewLoading
+                        ? html`<ak-empty-state loading></ak-empty-state>`
+                        : html`<div class="pf-c-card__body pf-c-form pf-m-horizontal">
+                              <ak-form-element-horizontal label=${msg("Passing")}>
+                                  <div class="pf-c-form__group-label">
+                                      <div class="c-form__horizontal-group">
+                                          <span class="pf-c-form__label-text">
+                                              <ak-status-label
+                                                  ?good=${this.preview?.passing}
+                                              ></ak-status-label>
+                                          </span>
+                                      </div>
+                                  </div>
+                              </ak-form-element-horizontal>
+                              <ak-form-element-horizontal label=${msg("Messages")}>
+                                  <div class="pf-c-form__group-label">
+                                      <div class="c-form__horizontal-group">
+                                          <ul>
+                                              ${(this.preview?.messages || []).length > 0
+                                                  ? this.preview?.messages?.map((m) => {
+                                                        return html`<li>
+                                                            <span class="pf-c-form__label-text"
+                                                                >${m}</span
+                                                            >
+                                                        </li>`;
+                                                    })
+                                                  : html`<li>
+                                                        <span class="pf-c-form__label-text">-</span>
+                                                    </li>`}
+                                          </ul>
+                                      </div>
+                                  </div>
+                              </ak-form-element-horizontal>
+
+                              <ak-form-element-horizontal label=${msg("Log messages")}>
+                                  <div class="pf-c-form__group-label">
+                                      <div class="c-form__horizontal-group">
+                                          <dl class="pf-c-description-list pf-m-horizontal">
+                                              <ak-log-viewer
+                                                  .logs=${this.preview?.logMessages}
+                                              ></ak-log-viewer>
+                                          </dl>
+                                      </div>
+                                  </div>
+                              </ak-form-element-horizontal>
+                          </div>`}
+                </div>
+                ${this.previewError
+                    ? html`
+                          <div class="pf-c-card pf-l-grid__item pf-m-12-col">
+                              <div class="pf-c-card__body">${msg("Preview errors")}</div>
+                              <div class="pf-c-card__body">
+                                  ${this.previewError.map((err) => html`<pre>${err}</pre>`)}
+                              </div>
+                          </div>
+                      `
+                    : nothing}
+            </div>
+        `;
+    }
+
+    renderEditForm(): TemplateResult {
         return html` <span>
                 ${msg(
-                    "Executes the python snippet to determine whether to allow or deny a request.",
+                    "Executes the Python snippet to determine whether to allow or deny a request.",
                 )}
             </span>
             <ak-form-element-horizontal label=${msg("Name")} ?required=${true} name="name">
@@ -80,6 +305,9 @@ export class ExpressionPolicyForm extends BasePolicyForm<ExpressionPolicy> {
                         <ak-codemirror
                             mode=${CodeMirrorMode.Python}
                             value="${ifDefined(this.instance?.expression)}"
+                            @change=${() => {
+                                this._shouldRefresh = true;
+                            }}
                         >
                         </ak-codemirror>
                         <p class="pf-c-form__helper-text">

web/src/elements/banner/EnterpriseStatusBanner.ts

@@ -20,8 +20,11 @@ export class EnterpriseStatusBanner extends WithLicenseSummary(AKElement) {
     }
 
     renderStatusBanner() {
+        if (!this.licenseSummary) {
+            return nothing;
+        }
         // Check if we're in the correct interface to render a banner
-        switch (this.licenseSummary.status) {
+        switch (this.licenseSummary?.status) {
             // user warning is both on admin interface and user interface
             case LicenseSummaryStatusEnum.LimitExceededUser:
                 if (
@@ -46,7 +49,7 @@ export class EnterpriseStatusBanner extends WithLicenseSummary(AKElement) {
                 break;
         }
         let message = "";
-        switch (this.licenseSummary.status) {
+        switch (this.licenseSummary?.status) {
             case LicenseSummaryStatusEnum.LimitExceededAdmin:
             case LicenseSummaryStatusEnum.LimitExceededUser:
                 message = msg(
@@ -83,13 +86,16 @@ export class EnterpriseStatusBanner extends WithLicenseSummary(AKElement) {
     }
 
     renderFlagBanner() {
+        if (!this.licenseSummary) {
+            return nothing;
+        }
         return html`
-            ${this.licenseSummary.licenseFlags.includes(LicenseFlagsEnum.Trial)
+            ${this.licenseSummary?.licenseFlags.includes(LicenseFlagsEnum.Trial)
                 ? html`<div class="pf-c-banner pf-m-sticky pf-m-gold">
                       ${msg("This authentik instance uses a Trial license.")}
                   </div>`
                 : nothing}
-            ${this.licenseSummary.licenseFlags.includes(LicenseFlagsEnum.NonProduction)
+            ${this.licenseSummary?.licenseFlags.includes(LicenseFlagsEnum.NonProduction)
                 ? html`<div class="pf-c-banner pf-m-sticky pf-m-gold">
                       ${msg("This authentik instance uses a Non-production license.")}
                   </div>`

web/src/elements/buttons/ModalButton.ts

@@ -40,6 +40,9 @@ export class ModalButton extends AKElement {
     @property()
     size: PFSize = PFSize.Large;
 
+    @property({ type: Boolean })
+    fullHeight = false;
+
     @property({ type: Boolean })
     open = false;
 
@@ -69,6 +72,9 @@ export class ModalButton extends AKElement {
                 .pf-c-modal-box.pf-m-xl {
                     --pf-c-modal-box--Width: calc(1.5 * var(--pf-c-modal-box--m-lg--lg--MaxWidth));
                 }
+                :host([fullHeight]) .pf-c-modal-box {
+                    height: 100%;
+                }
             `,
         ];
     }

web/src/elements/events/LogViewer.ts

@@ -14,7 +14,20 @@ import { LogEvent, LogLevelEnum } from "@goauthentik/api";
 @customElement("ak-log-viewer")
 export class LogViewer extends Table<LogEvent> {
     @property({ attribute: false })
-    logs?: LogEvent[] = [];
+    set logs(val: LogEvent[]) {
+        this.data = {
+            pagination: {
+                next: 0,
+                previous: 0,
+                count: val.length || 0,
+                current: 1,
+                totalPages: 1,
+                startIndex: 1,
+                endIndex: val.length || 0,
+            },
+            results: val,
+        };
+    }
 
     expandable = true;
     paginated = false;
@@ -24,7 +37,8 @@ export class LogViewer extends Table<LogEvent> {
     }
 
     async apiEndpoint(): Promise<PaginatedResponse<LogEvent>> {
-        return {
+        return (
+            this.data || {
                 pagination: {
                     next: 0,
                     previous: 0,
@@ -35,7 +49,8 @@ export class LogViewer extends Table<LogEvent> {
                     endIndex: this.logs?.length || 0,
                 },
                 results: this.logs || [],
-        };
+            }
+        );
     }
 
     renderEmpty(): TemplateResult {

web/src/elements/forms/ModelForm.ts

@@ -38,6 +38,10 @@ export abstract class ModelForm<T, PKT extends string | number> extends Form<T>
         });
     }
 
+    get instancePk(): PKT | undefined {
+        return this._instancePk;
+    }
+
     private _instancePk?: PKT;
 
     // Keep track if we've loaded the model instance