// (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 { Injector } from '@angular/core';
import { InAppBrowserObject } from '@ionic-native/in-app-browser';
import { Md5 } from 'ts-md5/dist/md5';
import { SQLiteDB } from '@classes/sqlitedb';
import { CoreApp } from '@services/app';
import { CoreDB } from '@services/db';
import { CoreEvents, CoreEventsProvider } from '@services/events';
import { CoreFile } from '@services/file';
import { CoreWS, CoreWSPreSets, CoreWSFileUploadOptions, CoreWSAjaxPreSets } from '@services/ws';
import { CoreDomUtils } from '@services/utils/dom';
import { CoreTextUtils } from '@services/utils/text';
import { CoreTimeUtils } from '@services/utils/time';
import { CoreUrlUtils } from '@services/utils/url';
import { CoreUtils, PromiseDefer } from '@services/utils/utils';
import { CoreConstants } from '@core/constants';
import CoreConfigConstants from '@app/config.json';
import { CoreLogger } from '@singletons/logger';
import { Translate } from '@singletons/core.singletons';
/**
* Class that represents a site (combination of site + user).
* It will have all the site data and provide utility functions regarding a site.
* To add tables to the site's database, please use CoreSitesProvider.registerSiteSchema. This will make sure that
* the tables are created in all the sites, not just the current one.
*/
export class CoreSite {
static REQUEST_QUEUE_DELAY = 50; // Maximum number of miliseconds to wait before processing the queue.
static REQUEST_QUEUE_LIMIT = 10; // Maximum number of requests allowed in the queue.
static REQUEST_QUEUE_FORCE_WS = false; // Use "tool_mobile_call_external_functions" even for calling a single function.
// Constants for cache update frequency.
static FREQUENCY_USUALLY = 0;
static FREQUENCY_OFTEN = 1;
static FREQUENCY_SOMETIMES = 2;
static FREQUENCY_RARELY = 3;
// Variables for the database.
static WS_CACHE_TABLE = 'wscache_2';
static CONFIG_TABLE = 'core_site_config';
static MINIMUM_MOODLE_VERSION = '3.1';
// Versions of Moodle releases.
protected MOODLE_RELEASES = {
3.1: 2016052300,
3.2: 2016120500,
3.3: 2017051503,
3.4: 2017111300,
3.5: 2018051700,
3.6: 2018120300,
3.7: 2019052000
};
// Possible cache update frequencies.
protected UPDATE_FREQUENCIES = [
CoreConfigConstants.cache_update_frequency_usually || 420000,
CoreConfigConstants.cache_update_frequency_often || 1200000,
CoreConfigConstants.cache_update_frequency_sometimes || 3600000,
CoreConfigConstants.cache_update_frequency_rarely || 43200000
];
// Rest of variables.
protected logger: CoreLogger;
protected db: SQLiteDB;
protected cleanUnicode = false;
protected lastAutoLogin = 0;
protected offlineDisabled = false;
protected ongoingRequests: { [cacheId: string]: Promise<any> } = {};
protected requestQueue: RequestQueueItem[] = [];
protected requestQueueTimeout = null;
protected tokenPluginFileWorks: boolean;
protected tokenPluginFileWorksPromise: Promise<boolean>;
protected oauthId: number;
/**
* Create a site.
*
* @param id Site ID.
* @param siteUrl Site URL.
* @param token Site's WS token.
* @param info Site info.
* @param privateToken Private token.
* @param config Site public config.
* @param loggedOut Whether user is logged out.
*/
constructor(public id: string, public siteUrl: string, public token?: string, public infos?: any,
public privateToken?: string, public config?: any, public loggedOut?: boolean) {
this.logger = CoreLogger.getInstance('CoreWSProvider');
this.setInfo(infos);
this.calculateOfflineDisabled();
if (this.id) {
this.initDB();
}
}
/**
* Initialize the database.
*/
initDB(): void {
this.db = CoreDB.instance.getDB('Site-' + this.id);
}
/**
* Get site ID.
*
* @return Site ID.
*/
getId(): string {
return this.id;
}
/**
* Get site URL.
*
* @return Site URL.
*/
getURL(): string {
return this.siteUrl;
}
/**
* Get site token.
*
* @return Site token.
*/
getToken(): string {
return this.token;
}
/**
* Get site info.
*
* @return Site info.
*/
getInfo(): any {
return this.infos;
}
/**
* Get site private token.
*
* @return Site private token.
*/
getPrivateToken(): string {
return this.privateToken;
}
/**
* Get site DB.
*
* @return Site DB.
*/
getDb(): SQLiteDB {
return this.db;
}
/**
* Get site user's ID.
*
* @return User's ID.
*/
getUserId(): number {
if (typeof this.infos != 'undefined' && typeof this.infos.userid != 'undefined') {
return this.infos.userid;
}
}
/**
* Get site Course ID for frontpage course. If not declared it will return 1 as default.
*
* @return Site Home ID.
*/
getSiteHomeId(): number {
return this.infos && this.infos.siteid || 1;
}
/**
* Get site name.
*
* @return Site name.
*/
getSiteName(): string {
if (CoreConfigConstants.sitename) {
// Overridden by config.
return CoreConfigConstants.sitename;
} else {
return this.infos && this.infos.sitename || '';
}
}
/**
* Set site ID.
*
* @param New ID.
*/
setId(id: string): void {
this.id = id;
this.initDB();
}
/**
* Set site token.
*
* @param New token.
*/
setToken(token: string): void {
this.token = token;
}
/**
* Set site private token.
*
* @param privateToken New private token.
*/
setPrivateToken(privateToken: string): void {
this.privateToken = privateToken;
}
/**
* Check if user logged out from the site and needs to authenticate again.
*
* @return Whether is logged out.
*/
isLoggedOut(): boolean {
return !!this.loggedOut;
}
/**
* Get OAuth ID.
*
* @return OAuth ID.
*/
getOAuthId(): number {
return this.oauthId;
}
/**
* Set site info.
*
* @param New info.
*/
setInfo(infos: any): void {
this.infos = infos;
// Index function by name to speed up wsAvailable method.
if (infos && infos.functions) {
infos.functionsByName = {};
infos.functions.forEach((func) => {
infos.functionsByName[func.name] = func;
});
}
}
/**
* Set site config.
*
* @param config Config.
*/
setConfig(config: any): void {
if (config) {
config.tool_mobile_disabledfeatures = CoreTextUtils.instance.treatDisabledFeatures(config.tool_mobile_disabledfeatures);
}
this.config = config;
this.calculateOfflineDisabled();
}
/**
* Set site logged out.
*
* @param loggedOut True if logged out and needs to authenticate again, false otherwise.
*/
setLoggedOut(loggedOut: boolean): void {
this.loggedOut = !!loggedOut;
}
/**
* Set OAuth ID.
*
* @param oauth OAuth ID.
*/
setOAuthId(oauthId: number): void {
this.oauthId = oauthId;
}
/**
* Check if the user authenticated in the site using an OAuth method.
*
* @return Whether the user authenticated in the site using an OAuth method.
*/
isOAuth(): boolean {
return this.oauthId != null && typeof this.oauthId != 'undefined';
}
/**
* Can the user access their private files?
*
* @return Whether can access my files.
*/
canAccessMyFiles(): boolean {
const infos = this.getInfo();
return infos && (typeof infos.usercanmanageownfiles === 'undefined' || infos.usercanmanageownfiles);
}
/**
* Can the user download files?
*
* @return Whether can download files.
*/
canDownloadFiles(): boolean {
const infos = this.getInfo();
return infos && infos.downloadfiles;
}
/**
* Can the user use an advanced feature?
*
* @param feature The name of the feature.
* @param whenUndefined The value to return when the parameter is undefined.
* @return Whether can use advanced feature.
*/
canUseAdvancedFeature(feature: string, whenUndefined: boolean = true): boolean {
const infos = this.getInfo();
let canUse = true;
if (typeof infos.advancedfeatures === 'undefined') {
canUse = whenUndefined;
} else {
for (const i in infos.advancedfeatures) {
const item = infos.advancedfeatures[i];
if (item.name === feature && parseInt(item.value, 10) === 0) {
canUse = false;
}
}
}
return canUse;
}
/**
* Can the user upload files?
*
* @return Whether can upload files.
*/
canUploadFiles(): boolean {
const infos = this.getInfo();
return infos && infos.uploadfiles;
}
/**
* Fetch site info from the Moodle site.
*
* @return A promise to be resolved when the site info is retrieved.
*/
fetchSiteInfo(): Promise<any> {
// The get_site_info WS call won't be cached.
const preSets = {
getFromCache: false,
saveToCache: false,
skipQueue: true
};
// Reset clean Unicode to check if it's supported again.
this.cleanUnicode = false;
return this.read('core_webservice_get_site_info', {}, preSets);
}
/**
* Read some data from the Moodle site using WS. Requests are cached by default.
*
* @param method WS method to use.
* @param data Data to send to the WS.
* @param preSets Extra options.
* @return Promise resolved with the response, rejected with CoreWSError if it fails.
*/
read(method: string, data: any, preSets?: CoreSiteWSPreSets): Promise<any> {
preSets = preSets || {};
if (typeof preSets.getFromCache == 'undefined') {
preSets.getFromCache = true;
}
if (typeof preSets.saveToCache == 'undefined') {
preSets.saveToCache = true;
}
if (typeof preSets.reusePending == 'undefined') {
preSets.reusePending = true;
}
return this.request(method, data, preSets);
}
/**
* Sends some data to the Moodle site using WS. Requests are NOT cached by default.
*
* @param method WS method to use.
* @param data Data to send to the WS.
* @param preSets Extra options.
* @return Promise resolved with the response, rejected with CoreWSError if it fails.
*/
write(method: string, data: any, preSets?: CoreSiteWSPreSets): Promise<any> {
preSets = preSets || {};
if (typeof preSets.getFromCache == 'undefined') {
preSets.getFromCache = false;
}
if (typeof preSets.saveToCache == 'undefined') {
preSets.saveToCache = false;
}
if (typeof preSets.emergencyCache == 'undefined') {
preSets.emergencyCache = false;
}
return this.request(method, data, preSets);
}
/**
* WS request to the site.
*
* @param method The WebService method to be called.
* @param data Arguments to pass to the method.
* @param preSets Extra options.
* @param retrying True if we're retrying the call for some reason. This is to prevent infinite loops.
* @return Promise resolved with the response, rejected with CoreWSError if it fails.
* @description
*
* Sends a webservice request to the site. This method will automatically add the
* required parameters and pass it on to the low level API in CoreWSProvider.call().
*
* Caching is also implemented, when enabled this method will returned a cached version of the request if the
* data hasn't expired.
*
* This method is smart which means that it will try to map the method to a compatibility one if need be, usually this
* means that it will fallback on the 'local_mobile_' prefixed function if it is available and the non-prefixed is not.
*/
request(method: string, data: any, preSets: CoreSiteWSPreSets, retrying?: boolean): Promise<any> {
const initialToken = this.token;
data = data || {};
if (!CoreApp.instance.isOnline() && this.offlineDisabled) {
return Promise.reject(CoreWS.instance.createFakeWSError('core.errorofflinedisabled', true));
}
// Check if the method is available, use a prefixed version if possible.
// We ignore this check when we do not have the site info, as the list of functions is not loaded yet.
if (this.getInfo() && !this.wsAvailable(method, false)) {
const compatibilityMethod = CoreConstants.WS_PREFIX + method;
if (this.wsAvailable(compatibilityMethod, false)) {
this.logger.info(`Using compatibility WS method '${compatibilityMethod}'`);
method = compatibilityMethod;
} else {
this.logger.error(`WS function '${method}' is not available, even in compatibility mode.`);
return Promise.reject(CoreUtils.instance.createFakeWSError('core.wsfunctionnotavailable', true));
}
}
const wsPreSets: CoreWSPreSets = {
wsToken: this.token,
siteUrl: this.siteUrl,
cleanUnicode: this.cleanUnicode,
typeExpected: preSets.typeExpected,
responseExpected: preSets.responseExpected
};
if (wsPreSets.cleanUnicode && CoreTextUtils.instance.hasUnicodeData(data)) {
// Data will be cleaned, notify the user.
CoreDomUtils.instance.showToast('core.unicodenotsupported', true, 3000);
} else {
// No need to clean data in this call.
wsPreSets.cleanUnicode = false;
}
if (this.offlineDisabled) {
// Offline is disabled, don't use cache.
preSets.getFromCache = false;
preSets.saveToCache = false;
preSets.emergencyCache = false;
}
// Enable text filtering by default.
data.moodlewssettingfilter = preSets.filter === false ? false : true;
data.moodlewssettingfileurl = preSets.rewriteurls === false ? false : true;
const originalData = data;
// Convert arguments to strings before starting the cache process.
data = CoreWS.instance.convertValuesToString(data, wsPreSets.cleanUnicode);
if (data == null) {
// Empty cleaned text found.
return Promise.reject(CoreUtils.instance.createFakeWSError('core.unicodenotsupportedcleanerror', true));
}
const cacheId = this.getCacheId(method, data);
// Check for an ongoing identical request if we're not ignoring cache.
if (preSets.getFromCache && this.ongoingRequests[cacheId]) {
return this.ongoingRequests[cacheId].then((response) => {
// Clone the data, this may prevent errors if in the callback the object is modified.
return CoreUtils.instance.clone(response);
});
}
const promise = this.getFromCache(method, data, preSets, false, originalData).catch(() => {
if (preSets.forceOffline) {
// Don't call the WS, just fail.
return Promise.reject(CoreWS.instance.createFakeWSError('core.cannotconnect', true,
{$a: CoreSite.MINIMUM_MOODLE_VERSION}));
}
// Call the WS.
return this.callOrEnqueueRequest(method, data, preSets, wsPreSets).then((response) => {
if (preSets.saveToCache) {
this.saveToCache(method, data, response, preSets);
}
return response;
}).catch((error) => {
if (error.errorcode == 'invalidtoken' ||
(error.errorcode == 'accessexception' && error.message.indexOf('Invalid token - token expired') > -1)) {
if (initialToken !== this.token && !retrying) {
// Token has changed, retry with the new token.
preSets.getFromCache = false; // Don't check cache now. Also, it will skip ongoingRequests.
return this.request(method, data, preSets, true);
} else if (CoreApp.instance.isSSOAuthenticationOngoing()) {
// There's an SSO authentication ongoing, wait for it to finish and try again.
return CoreApp.instance.waitForSSOAuthentication().then(() => {
return this.request(method, data, preSets, true);
});
}
// Session expired, trigger event.
CoreEvents.instance.trigger(CoreEventsProvider.SESSION_EXPIRED, {}, this.id);
// Change error message. Try to get data from cache, the event will handle the error.
error.message = Translate.instance.instant('core.lostconnection');
} else if (error.errorcode === 'userdeleted') {
// User deleted, trigger event.
CoreEvents.instance.trigger(CoreEventsProvider.USER_DELETED, { params: data }, this.id);
error.message = Translate.instance.instant('core.userdeleted');
return Promise.reject(error);
} else if (error.errorcode === 'forcepasswordchangenotice') {
// Password Change Forced, trigger event. Try to get data from cache, the event will handle the error.
CoreEvents.instance.trigger(CoreEventsProvider.PASSWORD_CHANGE_FORCED, {}, this.id);
error.message = Translate.instance.instant('core.forcepasswordchangenotice');
} else if (error.errorcode === 'usernotfullysetup') {
// User not fully setup, trigger event. Try to get data from cache, the event will handle the error.
CoreEvents.instance.trigger(CoreEventsProvider.USER_NOT_FULLY_SETUP, {}, this.id);
error.message = Translate.instance.instant('core.usernotfullysetup');
} else if (error.errorcode === 'sitepolicynotagreed') {
// Site policy not agreed, trigger event.
CoreEvents.instance.trigger(CoreEventsProvider.SITE_POLICY_NOT_AGREED, {}, this.id);
error.message = Translate.instance.instant('core.login.sitepolicynotagreederror');
return Promise.reject(error);
} else if (error.errorcode === 'dmlwriteexception' && CoreTextUtils.instance.hasUnicodeData(data)) {
if (!this.cleanUnicode) {
// Try again cleaning unicode.
this.cleanUnicode = true;
return this.request(method, data, preSets);
}
// This should not happen.
error.message = Translate.instance.instant('core.unicodenotsupported');
return Promise.reject(error);
} else if (error.exception === 'required_capability_exception' || error.errorcode === 'nopermission' ||
error.errorcode === 'notingroup') {
// Translate error messages with missing strings.
if (error.message === 'error/nopermission') {
error.message = Translate.instance.instant('core.nopermissionerror');
} else if (error.message === 'error/notingroup') {
error.message = Translate.instance.instant('core.notingroup');
}
// Save the error instead of deleting the cache entry so the same content is displayed in offline.
this.saveToCache(method, data, error, preSets);
return Promise.reject(error);
} else if (preSets.cacheErrors && preSets.cacheErrors.indexOf(error.errorcode) != -1) {
// Save the error instead of deleting the cache entry so the same content is displayed in offline.
this.saveToCache(method, data, error, preSets);
return Promise.reject(error);
} else if (typeof preSets.emergencyCache !== 'undefined' && !preSets.emergencyCache) {
this.logger.debug(`WS call '${method}' failed. Emergency cache is forbidden, rejecting.`);
return Promise.reject(error);
}
if (preSets.deleteCacheIfWSError && CoreUtils.instance.isWebServiceError(error)) {
// Delete the cache entry and return the entry. Don't block the user with the delete.
this.deleteFromCache(method, data, preSets).catch(() => {
// Ignore errors.
});
return Promise.reject(error);
}
this.logger.debug(`WS call '${method}' failed. Trying to use the emergency cache.`);
preSets.omitExpires = true;
preSets.getFromCache = true;
return this.getFromCache(method, data, preSets, true, originalData).catch(() => {
return Promise.reject(error);
});
});
}).then((response) => {
// Check if the response is an error, this happens if the error was stored in the cache.
if (response && (typeof response.exception != 'undefined' || typeof response.errorcode != 'undefined')) {
return Promise.reject(response);
}
return response;
});
this.ongoingRequests[cacheId] = promise;
// Clear ongoing request after setting the promise (just in case it's already resolved).
return promise.finally(() => {
// Make sure we don't clear the promise of a newer request that ignores the cache.
if (this.ongoingRequests[cacheId] === promise) {
delete this.ongoingRequests[cacheId];
}
}).then((response) => {
// We pass back a clone of the original object, this may prevent errors if in the callback the object is modified.
return CoreUtils.instance.clone(response);
});
}
/**
* Adds a request to the queue or calls it immediately when not using the queue.
*
* @param method The WebService method to be called.
* @param data Arguments to pass to the method.
* @param preSets Extra options related to the site.
* @param wsPreSets Extra options related to the WS call.
* @return Promise resolved with the response when the WS is called.
*/
protected callOrEnqueueRequest(method: string, data: any, preSets: CoreSiteWSPreSets, wsPreSets: CoreWSPreSets): Promise<any> {
if (preSets.skipQueue || !this.wsAvailable('tool_mobile_call_external_functions')) {
return CoreWS.instance.call(method, data, wsPreSets);
}
const cacheId = this.getCacheId(method, data);
// Check if there is an identical request waiting in the queue (read requests only by default).
if (preSets.reusePending) {
const request = this.requestQueue.find((request) => request.cacheId == cacheId);
if (request) {
return request.deferred.promise;
}
}
const request: RequestQueueItem = {
cacheId,
method,
data,
preSets,
wsPreSets,
deferred: CoreUtils.instance.promiseDefer(),
};
request.deferred.promise = new Promise((resolve, reject): void => {
request.deferred.resolve = resolve;
request.deferred.reject = reject;
});
return this.enqueueRequest(request);
}
/**
* Adds a request to the queue.
*
* @param request The request to enqueue.
* @return Promise resolved with the response when the WS is called.
*/
protected enqueueRequest(request: RequestQueueItem): Promise<any> {
this.requestQueue.push(request);
if (this.requestQueue.length >= CoreSite.REQUEST_QUEUE_LIMIT) {
this.processRequestQueue();
} else if (!this.requestQueueTimeout) {
this.requestQueueTimeout = setTimeout(this.processRequestQueue.bind(this), CoreSite.REQUEST_QUEUE_DELAY);
}
return request.deferred.promise;
}
/**
* Call the enqueued web service requests.
*/
protected processRequestQueue(): void {
this.logger.debug(`Processing request queue (${this.requestQueue.length} requests)`);
// Clear timeout if set.
if (this.requestQueueTimeout) {
clearTimeout(this.requestQueueTimeout);
this.requestQueueTimeout = null;
}
// Extract all requests from the queue.
const requests = this.requestQueue;
this.requestQueue = [];
if (requests.length == 1 && !CoreSite.REQUEST_QUEUE_FORCE_WS) {
// Only one request, do a regular web service call.
CoreWS.instance.call(requests[0].method, requests[0].data, requests[0].wsPreSets).then((data) => {
requests[0].deferred.resolve(data);
}).catch((error) => {
requests[0].deferred.reject(error);
});
return;
}
const data = {
requests: requests.map((request) => {
const args = {};
const settings = {};
// Separate WS settings from function arguments.
Object.keys(request.data).forEach((key) => {
let value = request.data[key];
const match = /^moodlews(setting.*)$/.exec(key);
if (match) {
if (match[1] == 'settingfilter' || match[1] == 'settingfileurl') {
// Undo special treatment of these settings in CoreWSProvider.convertValuesToString.
value = (value == 'true' ? '1' : '0');
}
settings[match[1]] = value;
} else {
args[key] = value;
}
});
return {
function: request.method,
arguments: JSON.stringify(args),
...settings
};
})
};
const wsPresets: CoreWSPreSets = {
siteUrl: this.siteUrl,
wsToken: this.token,
};
CoreWS.instance.call('tool_mobile_call_external_functions', data, wsPresets).then((data) => {
if (!data || !data.responses) {
return Promise.reject(null);
}
requests.forEach((request, i) => {
const response = data.responses[i];
if (!response) {
// Request not executed, enqueue again.
this.enqueueRequest(request);
} else if (response.error) {
request.deferred.reject(CoreTextUtils.instance.parseJSON(response.exception));
} else {
let responseData = CoreTextUtils.instance.parseJSON(response.data);
// Match the behaviour of CoreWSProvider.call when no response is expected.
const responseExpected = typeof wsPresets.responseExpected == 'undefined' || wsPresets.responseExpected;
if (!responseExpected && (responseData == null || responseData === '')) {
responseData = {};
}
request.deferred.resolve(responseData);
}
});
}).catch((error) => {
// Error not specific to a single request, reject all promises.
requests.forEach((request) => {
request.deferred.reject(error);
});
});
}
/**
* Check if a WS is available in this site.
*
* @param method WS name.
* @param checkPrefix When true also checks with the compatibility prefix.
* @return Whether the WS is available.
*/
wsAvailable(method: string, checkPrefix: boolean = true): boolean {
if (typeof this.infos == 'undefined') {
return false;
}
if (this.infos.functionsByName[method]) {
return true;
}
// Let's try again with the compatibility prefix.
if (checkPrefix) {
return this.wsAvailable(CoreConstants.WS_PREFIX + method, false);
}
return false;
}
/**
* Get cache ID.
*
* @param method The WebService method.
* @param data Arguments to pass to the method.
* @return Cache ID.
*/
protected getCacheId(method: string, data: any): string {
return <string> Md5.hashAsciiStr(method + ':' + CoreUtils.instance.sortAndStringify(data));
}
/**
* Get the cache ID used in Ionic 1 version of the app.
*
* @param method The WebService method.
* @param data Arguments to pass to the method.
* @return Cache ID.
*/
protected getCacheOldId(method: string, data: any): string {
return <string> Md5.hashAsciiStr(method + ':' + JSON.stringify(data));
}
/**
* Get a WS response from cache.
*
* @param method The WebService method to be called.
* @param data Arguments to pass to the method.
* @param preSets Extra options.
* @param emergency Whether it's an "emergency" cache call (WS call failed).
* @param originalData Arguments to pass to the method before being converted to strings.
* @return Promise resolved with the WS response.
*/
protected getFromCache(method: string, data: any, preSets: CoreSiteWSPreSets, emergency?: boolean, originalData?: any)
: Promise<any> {
if (!this.db || !preSets.getFromCache) {
return Promise.reject(null);
}
const id = this.getCacheId(method, data);
let promise;
if (preSets.getCacheUsingCacheKey || (emergency && preSets.getEmergencyCacheUsingCacheKey)) {
promise = this.db.getRecords(CoreSite.WS_CACHE_TABLE, { key: preSets.cacheKey }).then((entries) => {
if (!entries.length) {
// Cache key not found, get by params sent.
return this.db.getRecord(CoreSite.WS_CACHE_TABLE, { id });
} else if (entries.length > 1) {
// More than one entry found. Search the one with same ID as this call.
for (let i = 0, len = entries.length; i < len; i++) {
const entry = entries[i];
if (entry.id == id) {
return entry;
}
}
}
return entries[0];
});
} else {
promise = this.db.getRecord(CoreSite.WS_CACHE_TABLE, { id }).catch(() => {
// Entry not found, try to get it using the old ID.
const oldId = this.getCacheOldId(method, originalData || {});
return this.db.getRecord(CoreSite.WS_CACHE_TABLE, { id: oldId }).then((entry) => {
// Update the entry ID to use the new one.
this.db.updateRecords(CoreSite.WS_CACHE_TABLE, { id }, {id: oldId});
return entry;
});
});
}
return promise.then((entry) => {
const now = Date.now();
let expirationTime;
preSets.omitExpires = preSets.omitExpires || preSets.forceOffline || !CoreApp.instance.isOnline();
if (!preSets.omitExpires) {
expirationTime = entry.expirationTime + this.getExpirationDelay(preSets.updateFrequency);
if (now > expirationTime) {
this.logger.debug('Cached element found, but it is expired');
return Promise.reject(null);
}
}
if (typeof entry != 'undefined' && typeof entry.data != 'undefined') {
if (!expirationTime) {
this.logger.info(`Cached element found, id: ${id}. Expiration time ignored.`);
} else {
const expires = (expirationTime - now) / 1000;
this.logger.info(`Cached element found, id: ${id}. Expires in expires in ${expires} seconds`);
}
return CoreTextUtils.instance.parseJSON(entry.data, {});
}
return Promise.reject(null);
});
}
/**
* Gets the size of cached data for a specific component or component instance.
*
* @param component Component name
* @param componentId Optional component id (if not included, returns sum for whole component)
* @return Promise resolved when we have calculated the size
*/
getComponentCacheSize(component: string, componentId?: number): Promise<number> {
const params: any[] = [component];
let extraClause = '';
if (componentId !== undefined && componentId !== null) {
params.push(componentId);
extraClause = ' AND componentId = ?';
}
return this.db.getFieldSql('SELECT SUM(length(data)) FROM ' + CoreSite.WS_CACHE_TABLE +
' WHERE component = ?' + extraClause, params);
}
/**
* Save a WS response to cache.
*
* @param method The WebService method.
* @param data Arguments to pass to the method.
* @param response The WS response.
* @param preSets Extra options.
* @return Promise resolved when the response is saved.
*/
protected saveToCache(method: string, data: any, response: any, preSets: CoreSiteWSPreSets): Promise<any> {
if (!this.db) {
return Promise.reject(null);
}
let promise;
if (preSets.uniqueCacheKey) {
// Cache key must be unique, delete all entries with same cache key.
promise = this.deleteFromCache(method, data, preSets, true).catch(() => {
// Ignore errors.
});
} else {
promise = Promise.resolve();
}
return promise.then(() => {
// Since 3.7, the expiration time contains the time the entry is modified instead of the expiration time.
// We decided to reuse this field to prevent modifying the database table.
const id = this.getCacheId(method, data);
const entry: any = {
id,
data: JSON.stringify(response),
expirationTime: Date.now()
};
if (preSets.cacheKey) {
entry.key = preSets.cacheKey;
}
if (preSets.component) {
entry.component = preSets.component;
if (preSets.componentId) {
entry.componentId = preSets.componentId;
}
}
return this.db.insertRecord(CoreSite.WS_CACHE_TABLE, entry);
});
}
/**
* Delete a WS cache entry or entries.
*
* @param method The WebService method to be called.
* @param data Arguments to pass to the method.
* @param preSets Extra options.
* @param allCacheKey True to delete all entries with the cache key, false to delete only by ID.
* @return Promise resolved when the entries are deleted.
*/
protected deleteFromCache(method: string, data: any, preSets: CoreSiteWSPreSets, allCacheKey?: boolean): Promise<any> {
if (!this.db) {
return Promise.reject(null);
}
const id = this.getCacheId(method, data);
if (allCacheKey) {
return this.db.deleteRecords(CoreSite.WS_CACHE_TABLE, { key: preSets.cacheKey });
}
return this.db.deleteRecords(CoreSite.WS_CACHE_TABLE, { id });
}
/**
* Deletes WS cache entries for all methods relating to a specific component (and
* optionally component id).
*
* @param component Component name.
* @param componentId Component id.
* @return Promise resolved when the entries are deleted.
*/
async deleteComponentFromCache(component: string, componentId?: number): Promise<void> {
if (!component) {
return;
}
if (!this.db) {
throw new Error('Site DB not initialized');
}
const params = {
component,
} as any;
if (componentId) {
params.componentId = componentId;
}
return this.db.deleteRecords(CoreSite.WS_CACHE_TABLE, params);
}
/*
* Uploads a file using Cordova File API.
*
* @param filePath File path.
* @param options File upload options.
* @param onProgress Function to call on progress.
* @return Promise resolved when uploaded.
*/
uploadFile(filePath: string, options: CoreWSFileUploadOptions, onProgress?: (event: ProgressEvent) => any): Promise<any> {
if (!options.fileArea) {
options.fileArea = 'draft';
}
return CoreWS.instance.uploadFile(filePath, options, {
siteUrl: this.siteUrl,
wsToken: this.token
}, onProgress);
}
/**
* Invalidates all the cache entries.
*
* @return Promise resolved when the cache entries are invalidated.
*/
invalidateWsCache(): Promise<any> {
if (!this.db) {
return Promise.reject(null);
}
this.logger.debug('Invalidate all the cache for site: ' + this.id);
return this.db.updateRecords(CoreSite.WS_CACHE_TABLE, { expirationTime: 0 }).finally(() => {
CoreEvents.instance.trigger(CoreEventsProvider.WS_CACHE_INVALIDATED, {}, this.getId());
});
}
/**
* Invalidates all the cache entries with a certain key.
*
* @param key Key to search.
* @return Promise resolved when the cache entries are invalidated.
*/
invalidateWsCacheForKey(key: string): Promise<any> {
if (!this.db) {
return Promise.reject(null);
}
if (!key) {
return Promise.resolve();
}
this.logger.debug('Invalidate cache for key: ' + key);
return this.db.updateRecords(CoreSite.WS_CACHE_TABLE, { expirationTime: 0 }, { key });
}
/**
* Invalidates all the cache entries in an array of keys.
*
* @param keys Keys to search.
* @return Promise resolved when the cache entries are invalidated.
*/
invalidateMultipleWsCacheForKey(keys: string[]): Promise<any> {
if (!this.db) {
return Promise.reject(null);
}
if (!keys || !keys.length) {
return Promise.resolve();
}
const promises = [];
this.logger.debug('Invalidating multiple cache keys');
keys.forEach((key) => {
promises.push(this.invalidateWsCacheForKey(key));
});
return Promise.all(promises);
}
/**
* Invalidates all the cache entries whose key starts with a certain value.
*
* @param key Key to search.
* @return Promise resolved when the cache entries are invalidated.
*/
invalidateWsCacheForKeyStartingWith(key: string): Promise<any> {
if (!this.db) {
return Promise.reject(null);
}
if (!key) {
return Promise.resolve();
}
this.logger.debug('Invalidate cache for key starting with: ' + key);
const sql = 'UPDATE ' + CoreSite.WS_CACHE_TABLE + ' SET expirationTime=0 WHERE key LIKE ?';
return this.db.execute(sql, [key + '%']);
}
/**
* Check if tokenpluginfile can be used, and fix the URL afterwards.
*
* @param url The url to be fixed.
* @return Promise resolved with the fixed URL.
*/
checkAndFixPluginfileURL(url: string): Promise<string> {
return this.checkTokenPluginFile(url).then(() => {
return this.fixPluginfileURL(url);
});
}
/**
* Generic function for adding the wstoken to Moodle urls and for pointing to the correct script.
* Uses CoreUtilsProvider.fixPluginfileURL, passing site's token.
*
* @param url The url to be fixed.
* @return Fixed URL.
*/
fixPluginfileURL(url: string): string {
const accessKey = this.tokenPluginFileWorks || typeof this.tokenPluginFileWorks == 'undefined' ?
this.infos && this.infos.userprivateaccesskey : undefined;
return CoreUrlUtils.instance.fixPluginfileURL(url, this.token, this.siteUrl, accessKey);
}
/**
* Deletes site's DB.
*
* @return Promise to be resolved when the DB is deleted.
*/
deleteDB(): Promise<any> {
return CoreDB.instance.deleteDB('Site-' + this.id);
}
/**
* Deletes site's folder.
*
* @return Promise to be resolved when the DB is deleted.
*/
deleteFolder(): Promise<any> {
if (CoreFile.instance.isAvailable()) {
const siteFolder = CoreFile.instance.getSiteFolder(this.id);
return CoreFile.instance.removeDir(siteFolder).catch(() => {
// Ignore any errors, CoreFileProvider.removeDir fails if folder doesn't exists.
});
} else {
return Promise.resolve();
}
}
/**
* Get space usage of the site.
*
* @return Promise resolved with the site space usage (size).
*/
getSpaceUsage(): Promise<number> {
if (CoreFile.instance.isAvailable()) {
const siteFolderPath = CoreFile.instance.getSiteFolder(this.id);
return CoreFile.instance.getDirectorySize(siteFolderPath).catch(() => {
return 0;
});
} else {
return Promise.resolve(0);
}
}
/**
* Gets an approximation of the cache table usage of the site.
*
* Currently this is just the total length of the data fields in the cache table.
*
* @return Promise resolved with the total size of all data in the cache table (bytes)
*/
getCacheUsage(): Promise<number> {
return this.db.getFieldSql('SELECT SUM(length(data)) FROM ' + CoreSite.WS_CACHE_TABLE);
}
/**
* Gets a total of the file and cache usage.
*
* @return Promise with the total of getSpaceUsage and getCacheUsage
*/
async getTotalUsage(): Promise<number> {
const space = await this.getSpaceUsage();
const cache = await this.getCacheUsage();
return space + cache;
}
/**
* Returns the URL to the documentation of the app, based on Moodle version and current language.
*
* @param page Docs page to go to.
* @return Promise resolved with the Moodle docs URL.
*/
getDocsUrl(page?: string): Promise<string> {
const release = this.infos.release ? this.infos.release : undefined;
return CoreUrlUtils.instance.getDocsUrl(release, page);
}
/**
* Returns a url to link an specific page on the site.
*
* @param path Path of the url to go to.
* @param params Object with the params to add.
* @param anchor Anchor text if needed.
* @return URL with params.
*/
createSiteUrl(path: string, params?: {[key: string]: any}, anchor?: string): string {
return CoreUrlUtils.instance.addParamsToUrl(this.siteUrl + path, params, anchor);
}
/**
* Check if the local_mobile plugin is installed in the Moodle site.
*
* @param retrying True if we're retrying the check.
* @return Promise resolved when the check is done.
*/
async checkLocalMobilePlugin(retrying?: boolean): Promise<LocalMobileResponse> {
const checkUrl = this.siteUrl + '/local/mobile/check.php';
const service = CoreConfigConstants.wsextservice;
if (!service) {
// External service not defined.
return { code: 0 };
}
let data;
try {
const response = await CoreWS.instance.sendHTTPRequest(checkUrl, {
method: 'post',
data: { service },
});
data = response.body;
} catch (ex) {
return { code: 0 };
}
if (data === null) {
// This probably means that the server was configured to return null for non-existing URLs. Not installed.
return { code: 0 };
}
if (typeof data != 'undefined' && data.errorcode === 'requirecorrectaccess') {
if (!retrying) {
this.siteUrl = CoreUrlUtils.instance.addOrRemoveWWW(this.siteUrl);
return this.checkLocalMobilePlugin(true);
} else {
throw data.error;
}
} else if (typeof data == 'undefined' || typeof data.code == 'undefined') {
// The local_mobile returned something we didn't expect. Let's assume it's not installed.
return { code: 0, warning: 'core.login.localmobileunexpectedresponse' };
}
const code = parseInt(data.code, 10);
if (data.error) {
switch (code) {
case 1:
// Site in maintenance mode.
throw Translate.instance.instant('core.login.siteinmaintenance');
case 2:
// Web services not enabled.
throw Translate.instance.instant('core.login.webservicesnotenabled');
case 3:
// Extended service not enabled, but the official is enabled.
return { code: 0 };
case 4:
// Neither extended or official services enabled.
throw Translate.instance.instant('core.login.mobileservicesnotenabled');
default:
throw Translate.instance.instant('core.unexpectederror');
}
} else {
return { code, service, coreSupported: !!data.coresupported };
}
}
/**
* Check if local_mobile has been installed in Moodle.
*
* @return Whether the App is able to use local_mobile plugin for this site.
*/
checkIfAppUsesLocalMobile(): boolean {
let appUsesLocalMobile = false;
if (!this.infos || !this.infos.functions) {
return appUsesLocalMobile;
}
this.infos.functions.forEach((func) => {
if (func.name.indexOf(CoreConstants.WS_PREFIX) != -1) {
appUsesLocalMobile = true;
}
});
return appUsesLocalMobile;
}
/**
* Check if local_mobile has been installed in Moodle but the app is not using it.
*
* @return Promise resolved it local_mobile was added, rejected otherwise.
*/
checkIfLocalMobileInstalledAndNotUsed(): Promise<any> {
const appUsesLocalMobile = this.checkIfAppUsesLocalMobile();
if (appUsesLocalMobile) {
// App already uses local_mobile, it wasn't added.
return Promise.reject(null);
}
return this.checkLocalMobilePlugin().then((data: LocalMobileResponse): any => {
if (typeof data.service == 'undefined') {
// The local_mobile NOT installed. Reject.
return Promise.reject(null);
}
return data;
});
}
/**
* Check if a URL belongs to this site.
*
* @param url URL to check.
* @return Whether the URL belongs to this site.
*/
containsUrl(url: string): boolean {
if (!url) {
return false;
}
const siteUrl = CoreTextUtils.instance.addEndingSlash(CoreUrlUtils.instance.removeProtocolAndWWW(this.siteUrl));
url = CoreTextUtils.instance.addEndingSlash(CoreUrlUtils.instance.removeProtocolAndWWW(url));
return url.indexOf(siteUrl) == 0;
}
/**
* Get the public config of this site.
*
* @return Promise resolved with public config. Rejected with an object if error, see CoreWSProvider.callAjax.
*/
getPublicConfig(): Promise<any> {
const preSets: CoreWSAjaxPreSets = {
siteUrl: this.siteUrl
};
return CoreWS.instance.callAjax('tool_mobile_get_public_config', {}, preSets).catch((error) => {
if ((!this.getInfo() || this.isVersionGreaterEqualThan('3.8')) && error && error.errorcode == 'codingerror') {
// This error probably means that there is a redirect in the site. Try to use a GET request.
preSets.noLogin = true;
preSets.useGet = true;
return CoreWS.instance.callAjax('tool_mobile_get_public_config', {}, preSets).catch((error2) => {
if (this.getInfo() && this.isVersionGreaterEqualThan('3.8')) {
// GET is supported, return the second error.
return Promise.reject(error2);
} else {
// GET not supported or we don't know if it's supported. Return first error.
return Promise.reject(error);
}
});
}
return Promise.reject(error);
}).then((config) => {
// Use the wwwroot returned by the server.
if (config.httpswwwroot) {
this.siteUrl = config.httpswwwroot;
}
return config;
});
}
/**
* Open a URL in browser using auto-login in the Moodle site if available.
*
* @param url The URL to open.
* @param alertMessage If defined, an alert will be shown before opening the browser.
* @return Promise resolved when done, rejected otherwise.
*/
openInBrowserWithAutoLogin(url: string, alertMessage?: string): Promise<any> {
return this.openWithAutoLogin(false, url, undefined, alertMessage);
}
/**
* Open a URL in browser using auto-login in the Moodle site if available and the URL belongs to the site.
*
* @param url The URL to open.
* @param alertMessage If defined, an alert will be shown before opening the browser.
* @return Promise resolved when done, rejected otherwise.
*/
openInBrowserWithAutoLoginIfSameSite(url: string, alertMessage?: string): Promise<any> {
return this.openWithAutoLoginIfSameSite(false, url, undefined, alertMessage);
}
/**
* Open a URL in inappbrowser using auto-login in the Moodle site if available.
*
* @param url The URL to open.
* @param options Override default options passed to InAppBrowser.
* @param alertMessage If defined, an alert will be shown before opening the inappbrowser.
* @return Promise resolved when done.
*/
openInAppWithAutoLogin(url: string, options?: any, alertMessage?: string): Promise<InAppBrowserObject | void> {
return this.openWithAutoLogin(true, url, options, alertMessage);
}
/**
* Open a URL in inappbrowser using auto-login in the Moodle site if available and the URL belongs to the site.
*
* @param url The URL to open.
* @param options Override default options passed to inappbrowser.
* @param alertMessage If defined, an alert will be shown before opening the inappbrowser.
* @return Promise resolved when done.
*/
openInAppWithAutoLoginIfSameSite(url: string, options?: any, alertMessage?: string): Promise<InAppBrowserObject | void> {
return this.openWithAutoLoginIfSameSite(true, url, options, alertMessage);
}
/**
* Open a URL in browser or InAppBrowser using auto-login in the Moodle site if available.
*
* @param inApp True to open it in InAppBrowser, false to open in browser.
* @param url The URL to open.
* @param options Override default options passed to $cordovaInAppBrowser#open.
* @param alertMessage If defined, an alert will be shown before opening the browser/inappbrowser.
* @return Promise resolved when done. Resolve param is returned only if inApp=true.
*/
openWithAutoLogin(inApp: boolean, url: string, options?: any, alertMessage?: string): Promise<InAppBrowserObject | void> {
// Get the URL to open.
return this.getAutoLoginUrl(url).then((url) => {
if (!alertMessage) {
// Just open the URL.
if (inApp) {
return CoreUtils.instance.openInApp(url, options);
} else {
return CoreUtils.instance.openInBrowser(url);
}
}
// Show an alert first.
return CoreDomUtils.instance.showAlert(Translate.instance.instant('core.notice'), alertMessage, undefined, 3000)
.then((alert) => {
return new Promise<InAppBrowserObject | void>((resolve, reject): void => {
const subscription = alert.didDismiss.subscribe(() => {
subscription && subscription.unsubscribe();
if (inApp) {
resolve(CoreUtils.instance.openInApp(url, options));
} else {
resolve(CoreUtils.instance.openInBrowser(url));
}
});
});
});
});
}
/**
* Open a URL in browser or InAppBrowser using auto-login in the Moodle site if available and the URL belongs to the site.
*
* @param inApp True to open it in InAppBrowser, false to open in browser.
* @param url The URL to open.
* @param options Override default options passed to inappbrowser.
* @param alertMessage If defined, an alert will be shown before opening the browser/inappbrowser.
* @return Promise resolved when done. Resolve param is returned only if inApp=true.
*/
openWithAutoLoginIfSameSite(inApp: boolean, url: string, options?: any, alertMessage?: string)
: Promise<InAppBrowserObject | void> {
if (this.containsUrl(url)) {
return this.openWithAutoLogin(inApp, url, options, alertMessage);
} else {
if (inApp) {
CoreUtils.instance.openInApp(url, options);
} else {
CoreUtils.instance.openInBrowser(url);
}
return Promise.resolve(null);
}
}
/**
* Get the config of this site.
* It is recommended to use getStoredConfig instead since it's faster and doesn't use network.
*
* @param name Name of the setting to get. If not set or false, all settings will be returned.
* @param ignoreCache True if it should ignore cached data.
* @return Promise resolved with site config.
*/
getConfig(name?: string, ignoreCache?: boolean): Promise<any> {
const preSets: CoreSiteWSPreSets = {
cacheKey: this.getConfigCacheKey()
};
if (ignoreCache) {
preSets.getFromCache = false;
preSets.emergencyCache = false;
}
return this.read('tool_mobile_get_config', {}, preSets).then((config) => {
if (name) {
// Return the requested setting.
for (const x in config.settings) {
if (config.settings[x].name == name) {
return config.settings[x].value;
}
}
return Promise.reject(null);
} else {
// Return all settings in the same array.
const settings = {};
config.settings.forEach((setting) => {
settings[setting.name] = setting.value;
});
return settings;
}
});
}
/**
* Invalidates config WS call.
*
* @return Promise resolved when the data is invalidated.
*/
invalidateConfig(): Promise<any> {
return this.invalidateWsCacheForKey(this.getConfigCacheKey());
}
/**
* Get cache key for getConfig WS calls.
*
* @return Cache key.
*/
protected getConfigCacheKey(): string {
return 'tool_mobile_get_config';
}
/**
* Get the stored config of this site.
*
* @param name Name of the setting to get. If not set, all settings will be returned.
* @return Site config or a specific setting.
*/
getStoredConfig(name?: string): any {
if (!this.config) {
return;
}
if (name) {
return this.config[name];
} else {
return this.config;
}
}
/**
* Check if a certain feature is disabled in the site.
*
* @param name Name of the feature to check.
* @return Whether it's disabled.
*/
isFeatureDisabled(name: string): boolean {
const disabledFeatures = this.getStoredConfig('tool_mobile_disabledfeatures');
if (!disabledFeatures) {
return false;
}
const regEx = new RegExp('(,|^)' + CoreTextUtils.instance.escapeForRegex(name) + '(,|$)', 'g');
return !!disabledFeatures.match(regEx);
}
/**
* Calculate if offline is disabled in the site.
*/
calculateOfflineDisabled(): void {
this.offlineDisabled = this.isFeatureDisabled('NoDelegate_CoreOffline');
}
/**
* Get whether offline is disabled in the site.
*
* @return Whether it's disabled.
*/
isOfflineDisabled(): boolean {
return this.offlineDisabled;
}
/**
* Check if the site version is greater than one or several versions.
* This function accepts a string or an array of strings. If array, the last version must be the highest.
*
* @param versions Version or list of versions to check.
* @return Whether it's greater or equal, false otherwise.
* @description
* If a string is supplied (e.g. '3.2.1'), it will check if the site version is greater or equal than this version.
*
* If an array of versions is supplied, it will check if the site version is greater or equal than the last version,
* or if it's higher or equal than any of the other releases supplied but lower than the next major release. The last
* version of the array must be the highest version.
* For example, if the values supplied are ['3.0.5', '3.2.3', '3.3.1'] the function will return true if the site version
* is either:
* - Greater or equal than 3.3.1.
* - Greater or equal than 3.2.3 but lower than 3.3.
* - Greater or equal than 3.0.5 but lower than 3.1.
*
* This function only accepts versions from 2.4.0 and above. If any of the versions supplied isn't found, it will assume
* it's the last released major version.
*/
isVersionGreaterEqualThan(versions: string | string[]): boolean {
const siteVersion = parseInt(this.getInfo().version, 10);
if (Array.isArray(versions)) {
if (!versions.length) {
return false;
}
for (let i = 0; i < versions.length; i++) {
const versionNumber = this.getVersionNumber(versions[i]);
if (i == versions.length - 1) {
// It's the last version, check only if site version is greater than this one.
return siteVersion >= versionNumber;
} else {
// Check if site version if bigger than this number but lesser than next major.
if (siteVersion >= versionNumber && siteVersion < this.getNextMajorVersionNumber(versions[i])) {
return true;
}
}
}
} else if (typeof versions == 'string') {
// Compare with this version.
return siteVersion >= this.getVersionNumber(versions);
}
return false;
}
/**
* Given a URL, convert it to a URL that will auto-login if supported.
*
* @param url The URL to convert.
* @param showModal Whether to show a loading modal.
* @return Promise resolved with the converted URL.
*/
getAutoLoginUrl(url: string, showModal: boolean = true): Promise<string> {
if (!this.privateToken || !this.wsAvailable('tool_mobile_get_autologin_key') || (this.lastAutoLogin &&
CoreTimeUtils.instance.timestamp() - this.lastAutoLogin < CoreConstants.SECONDS_MINUTE * 6)) {
// No private token, WS not available or last auto-login was less than 6 minutes ago. Don't change the URL.
return Promise.resolve(url);
}
const userId = this.getUserId();
const params = {
privatetoken: this.privateToken,
};
let modal;
if (showModal) {
modal = CoreDomUtils.instance.showModalLoading();
}
// Use write to not use cache.
return this.write('tool_mobile_get_autologin_key', params).then((data) => {
if (!data.autologinurl || !data.key) {
// Not valid data, return the same URL.
return url;
}
this.lastAutoLogin = CoreTimeUtils.instance.timestamp();
return data.autologinurl + '?userid=' + userId + '&key=' + data.key + '&urltogo=' + encodeURIComponent(url);
}).catch(() => {
// Couldn't get autologin key, return the same URL.
return url;
}).finally(() => {
modal && modal.dismiss();
});
}
/**
* Get a version number from a release version.
* If release version is valid but not found in the list of Moodle releases, it will use the last released major version.
*
* @param version Release version to convert to version number.
* @return Version number, 0 if invalid.
*/
protected getVersionNumber(version: string): number {
const data = this.getMajorAndMinor(version);
if (!data) {
// Invalid version.
return 0;
}
if (typeof this.MOODLE_RELEASES[data.major] == 'undefined') {
// Major version not found. Use the last one.
data.major = Object.keys(this.MOODLE_RELEASES).slice(-1);
}
return this.MOODLE_RELEASES[data.major] + data.minor;
}
/**
* Given a release version, return the major and minor versions.
*
* @param version Release version (e.g. '3.1.0').
* @return Object with major and minor. Returns false if invalid version.
*/
protected getMajorAndMinor(version: string): any {
const match = version.match(/(\d)+(?:\.(\d)+)?(?:\.(\d)+)?/);
if (!match || !match[1]) {
// Invalid version.
return false;
}
return {
major: match[1] + '.' + (match[2] || '0'),
minor: parseInt(match[3], 10) || 0
};
}
/**
* Given a release version, return the next major version number.
*
* @param version Release version (e.g. '3.1.0').
* @return Next major version number.
*/
protected getNextMajorVersionNumber(version: string): number {
const data = this.getMajorAndMinor(version),
releases = Object.keys(this.MOODLE_RELEASES);
let position;
if (!data) {
// Invalid version.
return 0;
}
position = releases.indexOf(data.major);
if (position == -1 || position == releases.length - 1) {
// Major version not found or it's the last one. Use the last one.
return this.MOODLE_RELEASES[releases[position]];
}
return this.MOODLE_RELEASES[releases[position + 1]];
}
/**
* Deletes a site setting.
*
* @param name The config name.
* @return Promise resolved when done.
*/
deleteSiteConfig(name: string): Promise<any> {
return this.db.deleteRecords(CoreSite.CONFIG_TABLE, { name });
}
/**
* Get a site setting on local device.
*
* @param name The config name.
* @param defaultValue Default value to use if the entry is not found.
* @return Resolves upon success along with the config data. Reject on failure.
*/
getLocalSiteConfig(name: string, defaultValue?: any): Promise<any> {
return this.db.getRecord(CoreSite.CONFIG_TABLE, { name }).then((entry) => {
return entry.value;
}).catch((error) => {
if (typeof defaultValue != 'undefined') {
return defaultValue;
}
return Promise.reject(error);
});
}
/**
* Set a site setting on local device.
*
* @param name The config name.
* @param value The config value. Can only store number or strings.
* @return Promise resolved when done.
*/
setLocalSiteConfig(name: string, value: number | string): Promise<any> {
return this.db.insertRecord(CoreSite.CONFIG_TABLE, { name, value });
}
/**
* Get a certain cache expiration delay.
*
* @param updateFrequency The update frequency of the entry.
* @return Expiration delay.
*/
getExpirationDelay(updateFrequency?: number): number {
let expirationDelay = this.UPDATE_FREQUENCIES[updateFrequency] || this.UPDATE_FREQUENCIES[CoreSite.FREQUENCY_USUALLY];
if (CoreApp.instance.isNetworkAccessLimited()) {
// Not WiFi, increase the expiration delay a 50% to decrease the data usage in this case.
expirationDelay *= 1.5;
}
return expirationDelay;
}
/*
* Check if tokenpluginfile script works in the site.
*
* @param url URL to check.
* @return Promise resolved with boolean: whether it works or not.
*/
checkTokenPluginFile(url: string): Promise<boolean> {
if (!CoreUrlUtils.instance.canUseTokenPluginFile(url, this.siteUrl, this.infos && this.infos.userprivateaccesskey)) {
// Cannot use tokenpluginfile.
return Promise.resolve(false);
} else if (typeof this.tokenPluginFileWorks != 'undefined') {
// Already checked.
return Promise.resolve(this.tokenPluginFileWorks);
} else if (this.tokenPluginFileWorksPromise) {
// Check ongoing, use the same promise.
return this.tokenPluginFileWorksPromise;
} else if (!CoreApp.instance.isOnline()) {
// Not online, cannot check it. Assume it's working, but don't save the result.
return Promise.resolve(true);
}
url = this.fixPluginfileURL(url);
this.tokenPluginFileWorksPromise = CoreWS.instance.performHead(url).then((result) => {
return result.status >= 200 && result.status < 300;
}).catch((error) => {
// Error performing head request.
return false;
}).then((result) => {
this.tokenPluginFileWorks = result;
return result;
});
return this.tokenPluginFileWorksPromise;
}
}
/**
* PreSets accepted by the WS call.
*/
export type CoreSiteWSPreSets = {
/**
* Get the value from the cache if it's still valid.
*/
getFromCache?: boolean;
/**
* Save the result to the cache.
*/
saveToCache?: boolean;
/**
* Ignore cache expiration.
*/
omitExpires?: boolean;
/**
* Use the cache when a request fails. Defaults to true.
*/
emergencyCache?: boolean;
/**
* If true, the app won't call the WS. If the data isn't cached, the call will fail.
*/
forceOffline?: boolean;
/**
* Extra key to add to the cache when storing this call, to identify the entry.
*/
cacheKey?: string;
/**
* Whether it should use cache key to retrieve the cached data instead of the request params.
*/
getCacheUsingCacheKey?: boolean;
/**
* Same as getCacheUsingCacheKey, but for emergency cache.
*/
getEmergencyCacheUsingCacheKey?: boolean;
/**
* If true, the cache entry will be deleted if the WS call returns an exception.
*/
deleteCacheIfWSError?: boolean;
/**
* Whether it should only be 1 entry for this cache key (all entries with same key will be deleted).
*/
uniqueCacheKey?: boolean;
/**
* Whether to filter WS response (moodlewssettingfilter). Defaults to true.
*/
filter?: boolean;
/**
* Whether to rewrite URLs (moodlewssettingfileurl). Defaults to true.
*/
rewriteurls?: boolean;
/**
* Defaults to true. Set to false when the expected response is null.
*/
responseExpected?: boolean;
/**
* Defaults to 'object'. Use it when you expect a type that's not an object|array.
*/
typeExpected?: string;
/**
* Wehther a pending request in the queue matching the same function and arguments can be reused instead of adding
* a new request to the queue. Defaults to true for read requests.
*/
reusePending?: boolean;
/**
* Whether the request will be be sent immediately as a single request. Defaults to false.
*/
skipQueue?: boolean;
/**
* Cache the response if it returns an errorcode present in this list.
*/
cacheErrors?: string[];
/**
* Update frequency. This value determines how often the cached data will be updated. Possible values:
* CoreSite.FREQUENCY_USUALLY, CoreSite.FREQUENCY_OFTEN, CoreSite.FREQUENCY_SOMETIMES, CoreSite.FREQUENCY_RARELY.
* Defaults to CoreSite.FREQUENCY_USUALLY.
*/
updateFrequency?: number;
/**
* Component name. Optionally included if this request is being made on behalf of a specific
* component (e.g. activity).
*/
component?: string;
/**
* Component id. Optionally included when 'component' is set.
*/
componentId?: number;
};
/**
* Response of checking local_mobile status.
*/
export type LocalMobileResponse = {
/**
* Code to identify the authentication method to use.
*/
code: number;
/**
* Name of the service to use.
*/
service?: string;
/**
* Code of the warning message.
*/
warning?: string;
/**
* Whether core SSO is supported.
*/
coreSupported?: boolean;
};
/**
* Info of a request waiting in the queue.
*/
type RequestQueueItem = {
cacheId: string;
method: string;
data: any;
preSets: CoreSiteWSPreSets;
wsPreSets: CoreWSPreSets;
deferred: PromiseDefer<any>;
};