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Add XSRF support to uploader component

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This commit is contained in:
Tim Donohue
2021-02-17 15:54:08 -06:00
parent eb7d110683
commit 5589016a4e
1 changed files with 37 additions and 6 deletions
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43
src/app/shared/uploader/uploader.component.ts
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@@ -18,6 +18,9 @@ import { UploaderOptions } from './uploader-options.model';
import { hasValue, isNotEmpty, isUndefined } from '../empty.util';
import { UploaderService } from './uploader.service';
import { UploaderProperties } from './uploader-properties.model';
import { HttpXsrfTokenExtractor } from '@angular/common/http';
import { XSRF_REQUEST_HEADER, XSRF_RESPONSE_HEADER, XSRF_COOKIE } from '../../core/xsrf/xsrf.interceptor';
import { CookieService } from '../../core/services/cookie.service';
@Component({
selector: 'ds-uploader',
@@ -91,7 +94,9 @@ export class UploaderComponent {
}
}
constructor(private cdr: ChangeDetectorRef, private scrollToService: ScrollToService, private uploaderService: UploaderService) {
constructor(private cdr: ChangeDetectorRef, private scrollToService: ScrollToService,
private uploaderService: UploaderService, private tokenExtractor: HttpXsrfTokenExtractor,
private cookieService: CookieService) {
}
/**
@@ -108,7 +113,9 @@ export class UploaderComponent {
removeAfterUpload: true,
autoUpload: this.uploadFilesOptions.autoUpload,
method: this.uploadFilesOptions.method,
queueLimit: this.uploadFilesOptions.maxFileNumber
queueLimit: this.uploadFilesOptions.maxFileNumber,
// Ensure the current XSRF token is included in every upload request
headers: [{ name: XSRF_REQUEST_HEADER, value: this.tokenExtractor.getToken() }]
});
if (isUndefined(this.enableDragOverDocument)) {
@@ -123,10 +130,6 @@ export class UploaderComponent {
}
ngAfterViewInit() {
// Maybe to remove: needed to avoid CORS issue with our temp upload server
this.uploader.onAfterAddingFile = ((item) => {
item.withCredentials = false;
});
this.uploader.onAfterAddingAll = ((items) => {
this.onFileSelected.emit(items);
});
@@ -153,11 +156,25 @@ export class UploaderComponent {
}
this.uploader.onCompleteItem = (item: any, response: any, status: any, headers: any) => {
if (isNotEmpty(response)) {
// Check for a changed XSRF token in response & save new token if found
// NOTE: this is only necessary because ng2-file-upload doesn't use an Http service and therefore never
// triggers our xsrf.interceptor.ts. See this bug: https://github.com/valor-software/ng2-file-upload/issues/950
const token = headers[XSRF_RESPONSE_HEADER.toLowerCase()];
if (isNotEmpty(token)) {
this.saveXsrfToken(token);
}
const responsePath = JSON.parse(response);
this.onCompleteItem.emit(responsePath);
}
};
this.uploader.onErrorItem = (item: any, response: any, status: any, headers: any) => {
// Check for a changed XSRF token in response & save new token if found
// NOTE: this is only necessary because ng2-file-upload doesn't use an Http service and therefore never
// triggers our xsrf.interceptor.ts. See this bug: https://github.com/valor-software/ng2-file-upload/issues/950
const token = headers[XSRF_RESPONSE_HEADER.toLowerCase()];
if (isNotEmpty(token)) {
this.saveXsrfToken(token);
}
this.onUploadError.emit({ item: item, response: response, status: status, headers: headers });
this.uploader.cancelAll();
};
@@ -201,4 +218,18 @@ export class UploaderComponent {
}
}
/**
* Save XSRF token found in response. This is a temporary copy of the method in xsrf.interceptor.ts
* It can be removed once ng2-file-upload supports interceptors (see https://github.com/valor-software/ng2-file-upload/issues/950),
* or we switch to a new upload library (see https://github.com/DSpace/dspace-angular/issues/820)
* @param token token found
*/
private saveXsrfToken(token: string) {
// Save token value as a *new* value of our client-side XSRF-TOKEN cookie.
// This is the cookie that is parsed by Angular's tokenExtractor(),
// which we will send back in the X-XSRF-TOKEN header per Angular best practices.
this.cookieService.remove(XSRF_COOKIE);
this.cookieService.set(XSRF_COOKIE, token);
}
}