MOBILE-4451 settings: Create error log page

src/core/classes/site.ts

@@ -64,6 +64,7 @@ import { CoreSiteError } from '@classes/errors/siteerror';
 import { CoreUserAuthenticatedSupportConfig } from '@features/user/classes/support/authenticated-support-config';
 import { CoreLoginHelper } from '@features/login/services/login-helper';
 import { CorePath } from '@singletons/path';
+import { CoreErrorLogs } from '@singletons/error-logs';
 
 /**
  * QR Code type enumeration.
@@ -1156,7 +1157,15 @@ export class CoreSite {
                     // Request not executed, enqueue again.
                     this.enqueueRequest(request);
                 } else if (response.error) {
-                    request.deferred.reject(CoreTextUtils.parseJSON(response.exception || ''));
+                    const rejectReason = CoreTextUtils.parseJSON(response.exception || '') as Error | undefined;
+                    request.deferred.reject(rejectReason);
+                    CoreErrorLogs.addErrorLog({
+                        method: request.method,
+                        type: 'CoreSiteError',
+                        message: response.exception ?? '',
+                        time: new Date().getTime(),
+                        data: request.data,
+                    });
                 } else {
                     let responseData = response.data ? CoreTextUtils.parseJSON(response.data) : {};
                     // Match the behaviour of CoreWSProvider.call when no response is expected.
@@ -1170,6 +1179,13 @@ export class CoreSite {
         } catch (error) {
             // Error not specific to a single request, reject all promises.
             requests.forEach((request) => {
+                CoreErrorLogs.addErrorLog({
+                    method: request.method,
+                    type: 'CoreSiteError',
+                    message: String(error) ?? '',
+                    time: new Date().getTime(),
+                    data: request.data,
+                });
                 request.deferred.reject(error);
             });
         }

src/core/features/settings/pages/dev/dev.html

@@ -34,8 +34,9 @@
             <ion-label>
                 <h2>Enable staging sites ({{stagingSitesCount}})</h2>
             </ion-label>
-            <ion-toggle [(ngModel)]="enableStagingSites" (ionChange)="setEnabledStagingSites($event.detail.checked)"
+            <ion-toggle [(ngModel)]="enableStagingSites" (ionChange)="setEnabledStagingSites($event.detail.checked)" slot="end">
-                slot="end"></ion-toggle>
+            </ion-toggle>
+
         </ion-item>
         <ng-container *ngIf="siteId">
             <ion-item class="ion-text-wrap">
@@ -61,6 +62,12 @@
                 </ion-button>
             </ion-item>
 
+            <ion-item class="ion-text-wrap" (click)="openErrorLog()" [detail]="true" button>
+                <ion-label>
+                    <p class="item-heading">Error log</p>
+                </ion-label>
+            </ion-item>
+
             <ion-item-divider>
                 <ion-label>
                     <h2>Disabled features</h2>

src/core/features/settings/pages/dev/dev.ts

@@ -19,6 +19,7 @@ import { CoreSettingsHelper } from '@features/settings/services/settings-helper'
 import { CoreSitePlugins } from '@features/siteplugins/services/siteplugins';
 import { CoreUserTours } from '@features/usertours/services/user-tours';
 import { CoreConfig } from '@services/config';
+import { CoreNavigator } from '@services/navigator';
 import { CorePlatform } from '@services/platform';
 import { CoreSites } from '@services/sites';
 import { CoreDomUtils } from '@services/utils/dom';
@@ -151,6 +152,13 @@ export class CoreSettingsDevPage implements OnInit {
         });
     }
 
+    /**
+     * Open error log.
+     */
+    openErrorLog(): void {
+        CoreNavigator.navigate('error-log');
+    }
+
     /**
      * Copies site info.
      */

src/core/features/settings/pages/error-log/error-log.html

@@ -0,0 +1,51 @@
+<ion-header>
+    <ion-toolbar>
+        <ion-buttons slot="start">
+            <ion-back-button [text]="'core.back' | translate"></ion-back-button>
+        </ion-buttons>
+
+        <ion-title>
+            <h1>Error log</h1>
+        </ion-title>
+
+        <ion-buttons slot="end" *ngIf="errorLogs.length">
+            <ion-button fill="clear" (click)="copyInfo()" [attr.aria-label]="'core.settings.copyinfo' | translate">
+                <ion-icon slot="icon-only" name="fas-clipboard" aria-hidden="true"></ion-icon>
+            </ion-button>
+        </ion-buttons>
+    </ion-toolbar>
+</ion-header>
+
+<ion-content>
+    <ion-list *ngIf="errorLogs.length; else noLogs">
+        <ion-item button lines="full" class="ion-text-wrap" *ngFor="let error of errorLogs">
+            <div class="ion-padding" [collapsible-item]="96">
+                <p class="item-heading">Trace</p>
+                <p class="ion-text-wrap">{{ error.message }}</p>
+
+                <ng-container *ngIf="error.method">
+                    <p class="item-heading">Method</p>
+                    <p class="ion-text-wrap">{{ error.method }}</p>
+                </ng-container>
+
+                <ng-container *ngIf="error.type">
+                    <p class="item-heading">Type</p>
+                    <p class="ion-text-wrap">{{ error.type }}</p>
+                </ng-container>
+
+                <ng-container *ngIf="error.data">
+                    <p class="item-heading">Data</p>
+                    <p class="ion-text-wrap">{{ error.data | json }}</p>
+                </ng-container>
+
+                <div *ngIf="error.time">
+                    <span class="ion-text-end">{{ error.time | coreFormatDate :'strftimedatetimeshort' }}</span>
+                </div>
+            </div>
+        </ion-item>
+    </ion-list>
+    <ng-template #noLogs>
+        <core-empty-box message="No logs available" icon="fas-clipboard-question">
+        </core-empty-box>
+    </ng-template>
+</ion-content>

src/core/features/settings/pages/error-log/error-log.scss

@@ -0,0 +1,4 @@
+.timestamp {
+    display: flex;
+    justify-content: end;
+}

src/core/features/settings/pages/error-log/error-log.ts

@@ -0,0 +1,39 @@
+// (C) Copyright 2015 Moodle Pty Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { Component, OnInit } from '@angular/core';
+import { CoreUtils } from '@services/utils/utils';
+import { CoreErrorLogs, CoreSettingsErrorLog } from '@singletons/error-logs';
+
+/**
+ * Page that displays the error logs.
+ */
+@Component({
+    selector: 'page-core-app-settings-error-log',
+    templateUrl: 'error-log.html',
+    styleUrls: ['./error-log.scss'],
+})
+export class CoreSettingsErrorLogPage implements OnInit {
+
+    errorLogs: CoreSettingsErrorLog[] = [];
+
+    ngOnInit(): void {
+        this.errorLogs = CoreErrorLogs.getErrorLogs();
+    }
+
+    copyInfo(): void {
+        CoreUtils.copyToClipboard(JSON.stringify({ errors: this.errorLogs }));
+    }
+
+}

src/core/features/settings/settings-lazy.module.ts

@@ -28,6 +28,7 @@ import { CoreSettingsAboutPage } from '@features/settings/pages/about/about';
 import { CoreSettingsLicensesPage } from '@features/settings/pages/licenses/licenses';
 import { CoreSettingsDeviceInfoPage } from '@features/settings/pages/deviceinfo/deviceinfo';
 import { CoreSettingsDevPage } from '@features/settings/pages/dev/dev';
+import { CoreSettingsErrorLogPage } from '@features/settings/pages/error-log/error-log';
 
 const sectionRoutes: Routes = [
     {
@@ -86,6 +87,10 @@ const routes: Routes = [
         path: 'about/deviceinfo/dev',
         component: CoreSettingsDevPage,
     },
+    {
+        path: 'about/deviceinfo/dev/error-log',
+        component: CoreSettingsErrorLogPage,
+    },
     {
         path: 'about/licenses',
         component: CoreSettingsLicensesPage,
@@ -106,6 +111,7 @@ const routes: Routes = [
         CoreSettingsLicensesPage,
         CoreSettingsDeviceInfoPage,
         CoreSettingsDevPage,
+        CoreSettingsErrorLogPage,
     ],
 })
 export class CoreSettingsLazyModule {}

src/core/services/utils/dom.ts

@@ -60,6 +60,7 @@ import { CoreCancellablePromise } from '@classes/cancellable-promise';
 import { CoreLang } from '@services/lang';
 import { CorePasswordModalParams, CorePasswordModalResponse } from '@components/password-modal/password-modal';
 import { CoreWSError } from '@classes/errors/wserror';
+import { CoreErrorLogs } from '@singletons/error-logs';
 
 /*
  * "Utils" service with helper functions for UI, DOM elements and HTML code.
@@ -613,6 +614,7 @@ export class CoreDomUtilsProvider {
 
             // We received an object instead of a string. Search for common properties.
             errorMessage = CoreTextUtils.getErrorMessageFromError(error);
+            CoreErrorLogs.addErrorLog({ message: JSON.stringify(error), type: errorMessage || '', time: new Date().getTime() });
             if (!errorMessage) {
                 // No common properties found, just stringify it.
                 errorMessage = JSON.stringify(error);

src/core/services/ws.ts

@@ -43,6 +43,7 @@ import { CoreSiteError, CoreSiteErrorOptions } from '@classes/errors/siteerror';
 import { CoreUserGuestSupportConfig } from '@features/user/classes/support/guest-support-config';
 import { CoreSites } from '@services/sites';
 import { CoreLang, CoreLangFormat } from './lang';
+import { CoreErrorLogs } from '@singletons/error-logs';
 
 /**
  * This service allows performing WS calls and download/upload files.
@@ -412,9 +413,25 @@ export class CoreWSProvider {
         let promise: Promise<HttpResponse<any>>;
 
         if (preSets.siteUrl === undefined) {
-            throw new CoreAjaxError(Translate.instant('core.unexpectederror'));
+            const unexpectedError = new CoreAjaxError(Translate.instant('core.unexpectederror'));
+            CoreErrorLogs.addErrorLog({
+                method,
+                type: 'CoreAjaxError',
+                message: Translate.instant('core.unexpectederror'),
+                time: new Date().getTime(),
+                data,
+            });
+            throw unexpectedError;
         } else if (!CoreNetwork.isOnline()) {
-            throw new CoreAjaxError(Translate.instant('core.networkerrormsg'));
+            const networkError = new CoreAjaxError(Translate.instant('core.networkerrormsg'));
+            CoreErrorLogs.addErrorLog({
+                method,
+                type: 'CoreAjaxError',
+                message: Translate.instant('core.networkerrormsg'),
+                time: new Date().getTime(),
+                data,
+            });
+            throw networkError;
         }
 
         if (preSets.responseExpected === undefined) {
@@ -552,6 +569,10 @@ export class CoreWSProvider {
             }
 
             throw new CoreAjaxError(options, 1, data.status);
+        }).catch(error => {
+            const type = `CoreAjaxError - ${error.errorcode}`;
+            CoreErrorLogs.addErrorLog({ method, type, message: error, time: new Date().getTime(), data });
+            throw error;
         });
     }
 
@@ -782,6 +803,15 @@ export class CoreWSProvider {
             throw new CoreError(Translate.instant('core.serverconnection', {
                 details: CoreTextUtils.getErrorMessageFromError(error) ?? 'Unknown error',
             }));
+        }).catch(err => {
+            CoreErrorLogs.addErrorLog({
+                method,
+                type: String(err),
+                message: String(err.exception),
+                time: new Date().getTime(),
+                data: ajaxData,
+            });
+            throw err;
         });
     }
 
@@ -847,71 +877,84 @@ export class CoreWSProvider {
      */
     // eslint-disable-next-line @typescript-eslint/no-explicit-any
     syncCall<T = unknown>(method: string, data: any, preSets: CoreWSPreSets): T {
-        if (!preSets) {
+        try {
-            throw new CoreError(Translate.instant('core.unexpectederror'));
+            if (!preSets) {
-        } else if (!CoreNetwork.isOnline()) {
+                throw new CoreError(Translate.instant('core.unexpectederror'));
-            throw new CoreNetworkError();
+            } else if (!CoreNetwork.isOnline()) {
+                throw new CoreNetworkError();
+            }
+
+            preSets.typeExpected = preSets.typeExpected || 'object';
+            if (preSets.responseExpected === undefined) {
+                preSets.responseExpected = true;
+            }
+
+            data = this.convertValuesToString(data || {}, preSets.cleanUnicode);
+            if (data == null) {
+                // Empty cleaned text found.
+                throw new CoreError(Translate.instant('core.unicodenotsupportedcleanerror'));
+            }
+
+            data.wsfunction = method;
+            data.wstoken = preSets.wsToken;
+            const siteUrl = preSets.siteUrl + '/webservice/rest/server.php?moodlewsrestformat=json';
+
+            // Serialize data.
+            data = CoreInterceptor.serialize(data);
+
+            // Perform sync request using XMLHttpRequest.
+            const xhr = new XMLHttpRequest();
+            xhr.open('post', siteUrl, false);
+            xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded;charset=utf-8');
+
+            xhr.send(data);
+
+            // Get response.
+            // eslint-disable-next-line @typescript-eslint/no-explicit-any
+            data = ('response' in xhr) ? xhr.response : (<any> xhr).responseText;
+
+            // Check status.
+            const status = Math.max(xhr.status === 1223 ? 204 : xhr.status, 0);
+            if (status < 200 || status >= 300) {
+                // Request failed.
+                throw new CoreError(data);
+            }
+
+            // Treat response.
+            data = CoreTextUtils.parseJSON(data);
+
+            // Some moodle web services return null.
+            // If the responseExpected value is set then so long as no data is returned, we create a blank object.
+            if ((!data || !data.data) && !preSets.responseExpected) {
+                data = {};
+            }
+
+            if (!data) {
+                throw new CoreError(Translate.instant('core.serverconnection', {
+                    details: Translate.instant('core.errorinvalidresponse', { method }),
+                }));
+            } else if (typeof data != preSets.typeExpected) {
+                this.logger.warn('Response of type "' + typeof data + '" received, expecting "' + preSets.typeExpected + '"');
+                throw new CoreError(Translate.instant('core.errorinvalidresponse', { method }));
+            }
+
+            if (data.exception !== undefined || data.debuginfo !== undefined) {
+                throw new CoreWSError(data);
+            }
+
+            return data;
+        } catch (err) {
+            let errorType = '';
+
+            if (err instanceof CoreError) {
+                errorType = 'CoreError';
+            } else if (err instanceof CoreWSError) {
+                errorType = 'CoreWSError';
+            }
+
+            CoreErrorLogs.addErrorLog({ method, type: errorType, message: String(err), time: new Date().getTime(), data });
+            throw err;
         }
-
-        preSets.typeExpected = preSets.typeExpected || 'object';
-        if (preSets.responseExpected === undefined) {
-            preSets.responseExpected = true;
-        }
-
-        data = this.convertValuesToString(data || {}, preSets.cleanUnicode);
-        if (data == null) {
-            // Empty cleaned text found.
-            throw new CoreError(Translate.instant('core.unicodenotsupportedcleanerror'));
-        }
-
-        data.wsfunction = method;
-        data.wstoken = preSets.wsToken;
-        const siteUrl = preSets.siteUrl + '/webservice/rest/server.php?moodlewsrestformat=json';
-
-        // Serialize data.
-        data = CoreInterceptor.serialize(data);
-
-        // Perform sync request using XMLHttpRequest.
-        const xhr = new XMLHttpRequest();
-        xhr.open('post', siteUrl, false);
-        xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded;charset=utf-8');
-
-        xhr.send(data);
-
-        // Get response.
-        // eslint-disable-next-line @typescript-eslint/no-explicit-any
-        data = ('response' in xhr) ? xhr.response : (<any> xhr).responseText;
-
-        // Check status.
-        const status = Math.max(xhr.status === 1223 ? 204 : xhr.status, 0);
-        if (status < 200 || status >= 300) {
-            // Request failed.
-            throw new CoreError(data);
-        }
-
-        // Treat response.
-        data = CoreTextUtils.parseJSON(data);
-
-        // Some moodle web services return null.
-        // If the responseExpected value is set then so long as no data is returned, we create a blank object.
-        if ((!data || !data.data) && !preSets.responseExpected) {
-            data = {};
-        }
-
-        if (!data) {
-            throw new CoreError(Translate.instant('core.serverconnection', {
-                details: Translate.instant('core.errorinvalidresponse', { method }),
-            }));
-        } else if (typeof data != preSets.typeExpected) {
-            this.logger.warn('Response of type "' + typeof data + '" received, expecting "' + preSets.typeExpected + '"');
-            throw new CoreError(Translate.instant('core.errorinvalidresponse', { method }));
-        }
-
-        if (data.exception !== undefined || data.debuginfo !== undefined) {
-            throw new CoreWSError(data);
-        }
-
-        return data;
     }
 
     /*

src/core/singletons/error-logs.ts

@@ -0,0 +1,53 @@
+// (C) Copyright 2015 Moodle Pty Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+import { Injectable } from '@angular/core';
+import { makeSingleton } from '@singletons';
+
+/**
+ * Service that stores error logs in memory.
+ */
+@Injectable({ providedIn: 'root' })
+export class CoreErrorLogsService {
+
+    protected errorLogs: CoreSettingsErrorLog[] = [];
+
+    /**
+     * Retrieve error logs displayed in the DOM.
+     *
+     * @returns Error logs
+     */
+    getErrorLogs(): CoreSettingsErrorLog[] {
+        return this.errorLogs;
+    }
+
+    /**
+     * Add an error to error logs list.
+     *
+     * @param error Error.
+     */
+    addErrorLog(error: CoreSettingsErrorLog): void {
+        this.errorLogs.push(error);
+    }
+
+}
+
+export const CoreErrorLogs = makeSingleton(CoreErrorLogsService);
+
+export type CoreSettingsErrorLog = {
+    data?: unknown;
+    message: string;
+    method?: string;
+    time: number;
+    type: string;
+};