MOBILE-2376 core: Fix issues with pluginfile.php

- Improve how to detect if the URL has params.
- Replace & with &
- Only add webservice to the URL if it's the core pluginfile

src/classes/site.ts

@@ -931,7 +931,7 @@ export class CoreSite {
      * @return {string} Fixed URL.
      */
     fixPluginfileURL(url: string): string {
-        return this.urlUtils.fixPluginfileURL(url, this.token);
+        return this.urlUtils.fixPluginfileURL(url, this.token, this.siteUrl);
     }
 
     /**

src/core/course/providers/helper.ts

@@ -607,7 +607,14 @@ export class CoreCourseHelperProvider {
 
                     if (status === CoreConstants.DOWNLOADED) {
                         // Get the local file URL.
-                        return this.filepoolProvider.getInternalUrlByUrl(siteId, fileUrl);
+                        return this.filepoolProvider.getInternalUrlByUrl(siteId, fileUrl).catch((error) => {
+                            // File not found, mark the module as not downloaded and reject.
+                            return this.filepoolProvider.storePackageStatus(siteId, CoreConstants.NOT_DOWNLOADED, component,
+                                    componentId).then(() => {
+
+                                return Promise.reject(error);
+                            });
+                        });
                     } else if (status === CoreConstants.DOWNLOADING && !this.appProvider.isDesktop()) {
                         // Return the online URL.
                         return fixedUrl;

src/providers/utils/url.ts

@@ -14,6 +14,7 @@
 
 import { Injectable } from '@angular/core';
 import { CoreLangProvider } from '../lang';
+import { CoreTextUtilsProvider } from './text';
 
 /*
  * "Utils" service with helper functions for URLs.
@@ -21,7 +22,7 @@ import { CoreLangProvider } from '../lang';
 @Injectable()
 export class CoreUrlUtilsProvider {
 
-    constructor(private langProvider: CoreLangProvider) { }
+    constructor(private langProvider: CoreLangProvider, private textUtils: CoreTextUtilsProvider) { }
 
     /**
      * Add or remove 'www' from a URL. The url needs to have http or https protocol.
@@ -69,13 +70,16 @@ export class CoreUrlUtilsProvider {
      *
      * @param {string} url The url to be fixed.
      * @param {string} token Token to use.
+     * @param {string} siteUrl The URL of the site the URL belongs to.
      * @return {string} Fixed URL.
      */
-    fixPluginfileURL(url: string, token: string): string {
+    fixPluginfileURL(url: string, token: string, siteUrl: string): string {
         if (!url || !token) {
             return '';
         }
 
+        url = url.replace(/&/g, '&');
+
         // First check if we need to fix this url or is already fixed.
         if (url.indexOf('token=') != -1) {
             return url;
@@ -86,8 +90,8 @@ export class CoreUrlUtilsProvider {
             return url;
         }
 
-        // In which way the server is serving the files? Are we using slash parameters?
+        // Check if the URL already has params.
-        if (url.indexOf('?file=') != -1 || url.indexOf('?forcedownload=') != -1 || url.indexOf('?rev=') != -1) {
+        if (url.match(/\?[^=]+=/)) {
             url += '&';
         } else {
             url += '?';
@@ -96,7 +100,7 @@ export class CoreUrlUtilsProvider {
         url += 'token=' + token + '&offline=1';
 
         // Some webservices returns directly the correct download url, others not.
-        if (url.indexOf('/webservice/pluginfile') == -1) {
+        if (url.indexOf(this.textUtils.concatenatePaths(siteUrl, 'pluginfile.php')) === 0) {
             url = url.replace('/pluginfile', '/webservice/pluginfile');
         }