2019-02-08 10:32:41 +01:00

231 lines
8.2 KiB
TypeScript

// (C) Copyright 2015 Martin Dougiamas
//
// 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 { CoreLoggerProvider } from '@providers/logger';
import { CoreSitesProvider } from '@providers/sites';
import { CoreMimetypeUtilsProvider } from '@providers/utils/mimetype';
import { CoreUtilsProvider } from '@providers/utils/utils';
import { CoreCourseProvider } from '@core/course/providers/course';
import { CoreCourseLogHelperProvider } from '@core/course/providers/log-helper';
import { CoreConstants } from '@core/constants';
/**
* Service that provides some features for urls.
*/
@Injectable()
export class AddonModUrlProvider {
static COMPONENT = 'mmaModUrl';
protected ROOT_CACHE_KEY = 'mmaModUrl:';
protected logger;
constructor(logger: CoreLoggerProvider, private sitesProvider: CoreSitesProvider, private courseProvider: CoreCourseProvider,
private utils: CoreUtilsProvider, private mimeUtils: CoreMimetypeUtilsProvider,
private logHelper: CoreCourseLogHelperProvider) {
this.logger = logger.getInstance('AddonModUrlProvider');
}
/**
* Get the final display type for a certain URL. Based on Moodle's url_get_final_display_type.
*
* @param {any} url URL data.
* @return {number} Final display type.
*/
getFinalDisplayType(url: any): number {
if (!url) {
return -1;
}
const extension = this.mimeUtils.guessExtensionFromUrl(url.externalurl);
// PDFs can be embedded in web, but not in the Mobile app.
if (url.display == CoreConstants.RESOURCELIB_DISPLAY_EMBED && extension == 'pdf') {
return CoreConstants.RESOURCELIB_DISPLAY_DOWNLOAD;
}
if (url.display != CoreConstants.RESOURCELIB_DISPLAY_AUTO) {
return url.display;
}
// Detect links to local moodle pages.
const currentSite = this.sitesProvider.getCurrentSite();
if (currentSite && currentSite.containsUrl(url.externalurl)) {
if (url.externalurl.indexOf('file.php') == -1 && url.externalurl.indexOf('.php') != -1) {
// Most probably our moodle page with navigation.
return CoreConstants.RESOURCELIB_DISPLAY_OPEN;
}
}
const download = ['application/zip', 'application/x-tar', 'application/g-zip', 'application/pdf', 'text/html'];
let mimetype = this.mimeUtils.getMimeType(extension);
if (url.externalurl.indexOf('.php') != -1 || url.externalurl.substr(-1) === '/' ||
(url.externalurl.indexOf('//') != -1 && url.externalurl.match(/\//g).length == 2)) {
// Seems to be a web, use HTML mimetype.
mimetype = 'text/html';
}
if (download.indexOf(mimetype) != -1) {
return CoreConstants.RESOURCELIB_DISPLAY_DOWNLOAD;
}
if (this.mimeUtils.canBeEmbedded(extension)) {
return CoreConstants.RESOURCELIB_DISPLAY_EMBED;
}
// Let the browser deal with it somehow.
return CoreConstants.RESOURCELIB_DISPLAY_OPEN;
}
/**
* Get cache key for url data WS calls.
*
* @param {number} courseId Course ID.
* @return {string} Cache key.
*/
protected getUrlCacheKey(courseId: number): string {
return this.ROOT_CACHE_KEY + 'url:' + courseId;
}
/**
* Get a url data.
*
* @param {number} courseId Course ID.
* @param {string} key Name of the property to check.
* @param {any} value Value to search.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any>} Promise resolved when the url is retrieved.
*/
protected getUrlDataByKey(courseId: number, key: string, value: any, siteId?: string): Promise<any> {
return this.sitesProvider.getSite(siteId).then((site) => {
const params = {
courseids: [courseId]
},
preSets = {
cacheKey: this.getUrlCacheKey(courseId)
};
return site.read('mod_url_get_urls_by_courses', params, preSets).then((response) => {
if (response && response.urls) {
const currentUrl = response.urls.find((url) => {
return url[key] == value;
});
if (currentUrl) {
return currentUrl;
}
}
return Promise.reject(null);
});
});
}
/**
* Get a url by course module ID.
*
* @param {number} courseId Course ID.
* @param {number} cmId Course module ID.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any>} Promise resolved when the url is retrieved.
*/
getUrl(courseId: number, cmId: number, siteId?: string): Promise<any> {
return this.getUrlDataByKey(courseId, 'coursemodule', cmId, siteId);
}
/**
* Guess the icon for a certain URL. Based on Moodle's url_guess_icon.
*
* @param {string} url URL to check.
* @return {string} Icon, empty if it should use the default icon.
*/
guessIcon(url: string): string {
url = url || '';
const matches = url.match(/\//g),
extension = this.mimeUtils.getFileExtension(url);
if (!matches || matches.length < 3 || url.substr(-1) === '/' || extension == 'php') {
// Use default icon.
return '';
}
const icon = this.mimeUtils.getFileIcon(url);
// We do not want to return those icon types, the module icon is more appropriate.
if (icon === this.mimeUtils.getFileIconForType('unknown') || icon === this.mimeUtils.getFileIconForType('html')) {
return '';
}
return icon;
}
/**
* Invalidate the prefetched content.
*
* @param {number} moduleId The module ID.
* @param {number} courseId Course ID of the module.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any>} Promise resolved when the data is invalidated.
*/
invalidateContent(moduleId: number, courseId: number, siteId?: string): Promise<any> {
siteId = siteId || this.sitesProvider.getCurrentSiteId();
const promises = [];
promises.push(this.invalidateUrlData(courseId, siteId));
promises.push(this.courseProvider.invalidateModule(moduleId, siteId, 'url'));
return this.utils.allPromises(promises);
}
/**
* Invalidates url data.
*
* @param {number} courseid Course ID.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any>} Promise resolved when the data is invalidated.
*/
invalidateUrlData(courseId: number, siteId?: string): Promise<any> {
return this.sitesProvider.getSite(siteId).then((site) => {
return site.invalidateWsCacheForKey(this.getUrlCacheKey(courseId));
});
}
/**
* Returns whether or not getUrl WS available or not.
*
* @return {boolean} If WS is abalaible.
* @since 3.3
*/
isGetUrlWSAvailable(): boolean {
return this.sitesProvider.wsAvailableInCurrentSite('mod_url_get_urls_by_courses');
}
/**
* Report the url as being viewed.
*
* @param {number} id Module ID.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any>} Promise resolved when the WS call is successful.
*/
logView(id: number, siteId?: string): Promise<any> {
const params = {
urlid: id
};
return this.logHelper.log('mod_url_view_url', params, AddonModUrlProvider.COMPONENT, id, siteId);
}
}