2020-11-23 10:22:47 +01:00

498 lines
15 KiB
TypeScript

// (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 { CoreSites } from '@services/sites';
import { CoreMimetypeUtils } from '@services/utils/mimetype';
import { CoreWSExternalWarning } from '@services/ws';
import { CoreSite } from '@classes/site';
import { makeSingleton } from '@singletons/core.singletons';
const ROOT_CACHE_KEY = 'mmaFiles:';
/**
* Service to handle my files and site files.
*/
@Injectable({
providedIn: 'root',
})
export class AddonPrivateFilesProvider {
// Keep old names for backwards compatibility.
static readonly PRIVATE_FILES_COMPONENT = 'mmaFilesMy';
static readonly SITE_FILES_COMPONENT = 'mmaFilesSite';
/**
* Check if core_user_get_private_files_info WS call is available.
*
* @return Whether the WS is available, false otherwise.
*/
canGetPrivateFilesInfo(): boolean {
return CoreSites.instance.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 {
const currentSite = CoreSites.instance.getCurrentSite();
if (!currentSite) {
return false;
}
return currentSite.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 = CoreSites.instance.getCurrentSite();
if (!currentSite) {
return false;
}
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.
*/
async getFiles(params: AddonPrivateFilesGetFilesWSParams, siteId?: string): Promise<AddonPrivateFilesFile[]> {
const site = await CoreSites.instance.getSite(siteId);
const preSets = {
cacheKey: this.getFilesListCacheKey(params),
updateFrequency: CoreSite.FREQUENCY_SOMETIMES,
};
const result: AddonPrivateFilesGetFilesWSResult = await site.read('core_files_get_files', params, preSets);
if (!result.files) {
return [];
}
return result.files.map((entry) => {
entry.fileurl = entry.url;
if (entry.isdir) {
entry.imgPath = CoreMimetypeUtils.instance.getFolderIcon();
} else {
entry.imgPath = CoreMimetypeUtils.instance.getFileIcon(entry.filename);
}
return entry;
});
}
/**
* Get cache key for file list WS calls.
*
* @param params Params of the WS.
* @return Cache key.
*/
protected getFilesListCacheKey(params: AddonPrivateFilesGetFilesWSParams): string {
const root = !params.component ? 'site' : 'my';
return 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<AddonPrivateFilesFile[]> {
return this.getFiles(this.getPrivateFilesRootParams());
}
/**
* Get params to get root private files directory.
*
* @return Params.
*/
protected getPrivateFilesRootParams(): AddonPrivateFilesGetFilesWSParams {
return {
contextid: -1,
component: 'user',
filearea: 'private',
contextlevel: 'user',
instanceid: CoreSites.instance.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.
*/
async getPrivateFilesInfo(userId?: number, siteId?: string): Promise<AddonPrivateFilesGetUserInfoWSResult> {
const site = await CoreSites.instance.getSite(siteId);
userId = userId || site.getUserId();
const params: AddonPrivateFilesGetUserInfoWSParams = {
userid: userId,
};
const 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 ROOT_CACHE_KEY + 'privateInfo';
}
/**
* Get the site files.
*
* @return Promise resolved with the files.
*/
getSiteFiles(): Promise<AddonPrivateFilesFile[]> {
return this.getFiles(this.getSiteFilesRootParams());
}
/**
* Get params to get root site files directory.
*
* @return Params.
*/
protected getSiteFilesRootParams(): AddonPrivateFilesGetFilesWSParams {
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 params Params to the directory.
* @param siteId Site ID. If not defined, use current site.
* @return Promise resolved when the data is invalidated.
*/
async invalidateDirectory(root?: 'my' | 'site', params?: AddonPrivateFilesGetFilesWSParams, siteId?: string): Promise<void> {
if (!root) {
return;
}
if (!params) {
if (root === 'site') {
params = this.getSiteFilesRootParams();
} else {
params = this.getPrivateFilesRootParams();
}
}
const site = await CoreSites.instance.getSite(siteId);
await 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.
*/
async invalidatePrivateFilesInfo(siteId?: string): Promise<void> {
const site = await CoreSites.instance.getSite(siteId);
await 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.
*/
async invalidatePrivateFilesInfoForUser(userId?: number, siteId?: string): Promise<void> {
const site = await CoreSites.instance.getSite(siteId);
await site.invalidateWsCacheForKey(this.getPrivateFilesInfoCacheKey(userId || site.getUserId()));
}
/**
* 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.
*/
async isDisabled(siteId?: string): Promise<boolean> {
const site = await CoreSites.instance.getSite(siteId);
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 || CoreSites.instance.getCurrentSite();
return site.isFeatureDisabled('CoreMainMenuDelegate_AddonPrivateFiles');
}
/**
* 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.
*/
async isPrivateFilesDisabled(siteId?: string): Promise<boolean> {
const site = await CoreSites.instance.getSite(siteId);
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 || CoreSites.instance.getCurrentSite();
return !!site && site.isFeatureDisabled('AddonPrivateFilesPrivateFiles');
}
/**
* 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.
*/
async isSiteFilesDisabled(siteId?: string): Promise<boolean> {
const site = await CoreSites.instance.getSite(siteId);
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 || CoreSites.instance.getCurrentSite();
return !!site && site.isFeatureDisabled('AddonPrivateFilesSiteFiles');
}
/**
* 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.
*/
async isUploadDisabled(siteId?: string): Promise<boolean> {
const site = await CoreSites.instance.getSite(siteId);
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 || CoreSites.instance.getCurrentSite();
return !!site && site.isFeatureDisabled('AddonPrivateFilesUpload');
}
/**
* 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.
*/
async moveFromDraftToPrivate(draftId: number, siteId?: string): Promise<null> {
const params: AddonPrivateFilesAddUserPrivateFilesWSParams = {
draftid: draftId,
};
const preSets = {
responseExpected: false,
};
const site = await CoreSites.instance.getSite(siteId);
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.
*/
async versionCanUploadFiles(siteId?: string): Promise<boolean> {
const site = await CoreSites.instance.getSite(siteId);
// Upload private files doesn't work for Moodle 3.1.0 due to a bug.
return site.isVersionGreaterEqualThan('3.1.1');
}
}
export class AddonPrivateFiles extends makeSingleton(AddonPrivateFilesProvider) {}
/**
* File data returned by core_files_get_files.
*/
export type AddonPrivateFilesFile = {
contextid: number;
component: string;
filearea: string;
itemid: number;
filepath: string;
filename: string;
isdir: boolean;
url: string;
timemodified: number;
timecreated?: number; // Time created.
filesize?: number; // File size.
author?: string; // File owner.
license?: string; // File license.
} & AddonPrivateFilesFileCalculatedData;
/**
* Calculated data for AddonPrivateFilesFile.
*/
export type AddonPrivateFilesFileCalculatedData = {
fileurl: string; // File URL, using same name as CoreWSExternalFile.
imgPath?: string; // Path to file icon's image.
};
/**
* Params of WS core_files_get_files.
*/
export type AddonPrivateFilesGetFilesWSParams = {
contextid: number; // Context id Set to -1 to use contextlevel and instanceid.
component: string; // Component.
filearea: string; // File area.
itemid: number; // Associated id.
filepath: string; // File path.
filename: string; // File name.
modified?: number; // Timestamp to return files changed after this time.
contextlevel?: string; // The context level for the file location.
instanceid?: number; // The instance id for where the file is located.
};
/**
* Result of WS core_files_get_files.
*/
export type AddonPrivateFilesGetFilesWSResult = {
parents: {
contextid: number;
component: string;
filearea: string;
itemid: number;
filepath: string;
filename: string;
}[];
files: AddonPrivateFilesFile[];
};
/**
* Params of core_user_get_private_files_info WS.
*/
export type AddonPrivateFilesGetUserInfoWSParams = {
userid?: number; // Id of the user, default to current user.
};
/**
* Data returned by core_user_get_private_files_info WS.
*/
export type AddonPrivateFilesGetUserInfoWSResult = {
filecount: number; // Number of files in the area.
foldercount: number; // Number of folders in the area.
filesize: number; // Total size of the files in the area.
filesizewithoutreferences: number; // Total size of the area excluding file references.
warnings?: CoreWSExternalWarning[];
};
/**
* Params of core_user_add_user_private_files WS.
*/
export type AddonPrivateFilesAddUserPrivateFilesWSParams = {
draftid: number; // Draft area id.
};