2
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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 { CoreSitesProvider } from '@providers/sites';
import { CoreMimetypeUtilsProvider } from '@providers/utils/mimetype';
import { CoreSite } from '@classes/site';
/**
* Service to handle my files and site files.
*/
@Injectable()
export class AddonFilesProvider {
protected ROOT_CACHE_KEY = 'mmaFiles:';
static PRIVATE_FILES_COMPONENT = 'mmaFilesMy';
static SITE_FILES_COMPONENT = 'mmaFilesSite';
constructor(private sitesProvider: CoreSitesProvider, private mimeUtils: CoreMimetypeUtilsProvider) { }
/**
* Check if core_user_get_private_files_info WS call is available.
*
* @return Whether the WS is available, false otherwise.
*/
canGetPrivateFilesInfo(): boolean {
return this.sitesProvider.wsAvailableInCurrentSite('core_user_get_private_files_info');
}
/**
* Check if user can view his private files.
*
* @return Whether the user can view his private files.
*/
canViewPrivateFiles(): boolean {
return this.sitesProvider.getCurrentSite().canAccessMyFiles() && !this.isPrivateFilesDisabledInSite();
}
/**
* Check if user can view site files.
*
* @return Whether the user can view site files.
*/
canViewSiteFiles(): boolean {
return !this.isSiteFilesDisabledInSite();
}
/**
* Check if user can upload private files.
*
* @return Whether the user can upload private files.
*/
canUploadFiles(): boolean {
const currentSite = this.sitesProvider.getCurrentSite();
return currentSite.canAccessMyFiles() && currentSite.canUploadFiles() && !this.isUploadDisabledInSite();
}
/**
* Get the list of files.
*
* @param params A list of parameters accepted by the Web service.
* @param siteId Site ID. If not defined, current site.
* @return Promise resolved with the files.
*/
getFiles(params: any, siteId?: string): Promise<any[]> {
return this.sitesProvider.getSite(siteId).then((site) => {
const preSets = {
cacheKey: this.getFilesListCacheKey(params),
updateFrequency: CoreSite.FREQUENCY_SOMETIMES
};
return site.read('core_files_get_files', params, preSets);
}).then((result) => {
const entries = [];
if (result.files) {
result.files.forEach((entry) => {
if (entry.isdir) {
// Create a "link" to load the folder.
entry.link = {
contextid: entry.contextid || '',
component: entry.component || '',
filearea: entry.filearea || '',
itemid: entry.itemid || 0,
filepath: entry.filepath || '',
filename: entry.filename || ''
};
if (entry.component) {
// Delete unused elements that may break the request.
entry.link.filename = '';
}
}
if (entry.isdir) {
entry.imgPath = this.mimeUtils.getFolderIcon();
} else {
entry.imgPath = this.mimeUtils.getFileIcon(entry.filename);
}
entries.push(entry);
});
}
return entries;
});
}
/**
* Get cache key for file list WS calls.
*
* @param params Params of the WS.
* @return Cache key.
*/
protected getFilesListCacheKey(params: any): string {
const root = !params.component ? 'site' : 'my';
return this.ROOT_CACHE_KEY + 'list:' + root + ':' + params.contextid + ':' + params.filepath;
}
/**
* Get the private files of the current user.
*
* @return Promise resolved with the files.
*/
getPrivateFiles(): Promise<any[]> {
return this.getFiles(this.getPrivateFilesRootParams());
}
/**
* Get params to get root private files directory.
*
* @return Params.
*/
protected getPrivateFilesRootParams(): any {
return {
contextid: -1,
component: 'user',
filearea: 'private',
contextlevel: 'user',
instanceid: this.sitesProvider.getCurrentSite().getUserId(),
itemid: 0,
filepath: '',
filename: ''
};
}
/**
* Get private files info.
*
* @param userId User ID. If not defined, current user in the site.
* @param siteId Site ID. If not defined, use current site.
* @return Promise resolved with the info.
*/
getPrivateFilesInfo(userId?: number, siteId?: string): Promise<any> {
return this.sitesProvider.getSite(siteId).then((site) => {
userId = userId || site.getUserId();
const params = {
userid: userId
},
preSets = {
cacheKey: this.getPrivateFilesInfoCacheKey(userId),
updateFrequency: CoreSite.FREQUENCY_SOMETIMES
};
return site.read('core_user_get_private_files_info', params, preSets);
});
}
/**
* Get the cache key for private files info WS calls.
*
* @param userId User ID.
* @return Cache key.
*/
protected getPrivateFilesInfoCacheKey(userId: number): string {
return this.getPrivateFilesInfoCommonCacheKey() + ':' + userId;
}
/**
* Get the common part of the cache keys for private files info WS calls.
*
* @return Cache key.
*/
protected getPrivateFilesInfoCommonCacheKey(): string {
return this.ROOT_CACHE_KEY + 'privateInfo';
}
/**
* Get the site files.
*
* @return Promise resolved with the files.
*/
getSiteFiles(): Promise<any[]> {
return this.getFiles(this.getSiteFilesRootParams());
}
/**
* Get params to get root site files directory.
*
* @return Params.
*/
protected getSiteFilesRootParams(): any {
return {
contextid: 0,
component: '',
filearea: '',
itemid: 0,
filepath: '',
filename: ''
};
}
/**
* Invalidates list of files in a certain directory.
*
* @param root Root of the directory ('my' for private files, 'site' for site files).
* @param path Path to the directory.
* @param siteId Site ID. If not defined, use current site.
* @return Promise resolved when the data is invalidated.
*/
invalidateDirectory(root: string, path: string, siteId?: string): Promise<any> {
let params;
if (!path) {
if (root === 'site') {
params = this.getSiteFilesRootParams();
} else if (root === 'my') {
params = this.getPrivateFilesRootParams();
}
} else {
params = path;
}
return this.sitesProvider.getSite(siteId).then((site) => {
return site.invalidateWsCacheForKey(this.getFilesListCacheKey(params));
});
}
/**
* Invalidates private files info for all users.
*
* @param siteId Site ID. If not defined, use current site.
* @return Promise resolved when the data is invalidated.
*/
invalidatePrivateFilesInfo(siteId?: string): Promise<any> {
return this.sitesProvider.getSite(siteId).then((site) => {
return site.invalidateWsCacheForKeyStartingWith(this.getPrivateFilesInfoCommonCacheKey());
});
}
/**
* Invalidates private files info for a certain user.
*
* @param userId User ID. If not defined, current user in the site.
* @param siteId Site ID. If not defined, use current site.
* @return Promise resolved when the data is invalidated.
*/
invalidatePrivateFilesInfoForUser(userId?: number, siteId?: string): Promise<any> {
return this.sitesProvider.getSite(siteId).then((site) => {
userId = userId || site.getUserId();
return site.invalidateWsCacheForKey(this.getPrivateFilesInfoCacheKey(userId));
});
}
/**
* Check if Files is disabled in a certain site.
*
* @param siteId Site Id. If not defined, use current site.
* @return Promise resolved with true if disabled, rejected or resolved with false otherwise.
*/
isDisabled(siteId?: string): Promise<boolean> {
return this.sitesProvider.getSite(siteId).then((site) => {
return this.isDisabledInSite(site);
});
}
/**
* Check if Files is disabled in a certain site.
*
* @param site Site. If not defined, use current site.
* @return Whether it's disabled.
*/
isDisabledInSite(site: CoreSite): boolean {
site = site || this.sitesProvider.getCurrentSite();
return site.isFeatureDisabled('CoreMainMenuDelegate_AddonFiles');
}
/**
* Return whether or not the plugin is enabled.
*
* @return True if enabled, false otherwise.
*/
isPluginEnabled(): boolean {
return this.canViewPrivateFiles() || this.canViewSiteFiles() || this.canUploadFiles();
}
/**
* Check if private files is disabled in a certain site.
*
* @param siteId Site Id. If not defined, use current site.
* @return Promise resolved with true if disabled, rejected or resolved with false otherwise.
*/
isPrivateFilesDisabled(siteId?: string): Promise<boolean> {
return this.sitesProvider.getSite(siteId).then((site) => {
return this.isPrivateFilesDisabledInSite(site);
});
}
/**
* Check if private files is disabled in a certain site.
*
* @param site Site. If not defined, use current site.
* @return Whether it's disabled.
*/
isPrivateFilesDisabledInSite(site?: CoreSite): boolean {
site = site || this.sitesProvider.getCurrentSite();
return site.isFeatureDisabled('AddonFilesPrivateFiles');
}
/**
* Check if site files is disabled in a certain site.
*
* @param siteId Site Id. If not defined, use current site.
* @return Promise resolved with true if disabled, rejected or resolved with false otherwise.
*/
isSiteFilesDisabled(siteId?: string): Promise<boolean> {
return this.sitesProvider.getSite(siteId).then((site) => {
return this.isSiteFilesDisabledInSite(site);
});
}
/**
* Check if site files is disabled in a certain site.
*
* @param site Site. If not defined, use current site.
* @return Whether it's disabled.
*/
isSiteFilesDisabledInSite(site?: CoreSite): boolean {
site = site || this.sitesProvider.getCurrentSite();
return site.isFeatureDisabled('AddonFilesSiteFiles');
}
/**
* Check if upload files is disabled in a certain site.
*
* @param siteId Site Id. If not defined, use current site.
* @return Promise resolved with true if disabled, rejected or resolved with false otherwise.
*/
isUploadDisabled(siteId?: string): Promise<boolean> {
return this.sitesProvider.getSite(siteId).then((site) => {
return this.isUploadDisabledInSite(site);
});
}
/**
* Check if upload files is disabled in a certain site.
*
* @param site Site. If not defined, use current site.
* @return Whether it's disabled.
*/
isUploadDisabledInSite(site?: CoreSite): boolean {
site = site || this.sitesProvider.getCurrentSite();
return site.isFeatureDisabled('AddonFilesUpload');
}
/**
* Move a file from draft area to private files.
*
* @param draftId The draft area ID of the file.
* @param siteid ID of the site. If not defined, use current site.
* @return Promise resolved in success, rejected otherwise.
*/
moveFromDraftToPrivate(draftId: number, siteId?: string): Promise<any> {
const params = {
draftid: draftId
},
preSets = {
responseExpected: false
};
return this.sitesProvider.getSite(siteId).then((site) => {
return site.write('core_user_add_user_private_files', params, preSets);
});
}
/**
* Check the Moodle version in order to check if upload files is working.
*
* @param siteId Site ID. If not defined, use current site.
* @return Promise resolved with true if WS is working, false otherwise.
*/
versionCanUploadFiles(siteId?: string): Promise<boolean> {
return this.sitesProvider.getSite(siteId).then((site) => {
// Upload private files doesn't work for Moodle 3.1.0 due to a bug.
return site.isVersionGreaterEqualThan('3.1.1');
});
}
}