Firebase storage security rules 400错误发布“拒绝许可。无法访问桶…“（在部署时，同时在localhost上工作）

Question

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<mat-form-field>
        <!-- Accept only files in the following format: .doc, .docx, .jpg, .jpeg, .pdf, .png, .xls, .xlsx. However, this is easy to bypass, Cloud Storage rules has been set up on the back-end side. -->
        <ngx-mat-file-input
          [accept]="[
            '.doc',
            '.docx',
            '.jpg',
            '.jpeg',
            '.pdf',
            '.png',
            '.xls',
            '.xlsx'
          ]"
          (change)="uploadFile($event)"
          formControlName="fileUploader"
          multiple
          aria-label="Here you can add additional files about your project, which can be helpeful for us."
          placeholder="Additional files"
          title="Additional files"
          type="file"
        >
        </ngx-mat-file-input>
        <mat-icon matSuffix>folder</mat-icon>
        <mat-hint
          >Accepted formats: DOC, DOCX, JPG, JPEG, PDF, PNG, XLS and XLSX,
          maximum files upload size: 20 MB.
        </mat-hint>
        <mat-error
          *ngIf="contactForm.get('fileUploader')!.hasError('maxContentSize')"
        >
          This size is too large,
          <strong
            >maximum acceptable upload size is
            {{
              contactForm.get('fileUploader')?.getError('maxContentSize')
                .maxSize | byteFormat
            }}</strong
          >
          (uploaded size:
          {{
            contactForm.get('fileUploader')?.getError('maxContentSize')
              .actualSize | byteFormat
          }}).
        </mat-error>
      </mat-form-field>

打字（角码）

/**
   * @description Upload additional files to Cloud Firestore and get URL to the files.
   * @param {event} - object of sent files.
   * @returns {void}
   */
  public uploadFile(event: any): void {
    // Iterate through all uploaded files.
    for (let i = 0; i < event.target.files.length; i++) {
      const randomId = Math.random()
        .toString(36)
        .substring(2); // Create random ID, so the same file names can be uploaded to Cloud Firestore.

      const file = event.target.files[i]; // Get each uploaded file.

      // Get file reference.
      const fileRef: AngularFireStorageReference = this.angularFireStorage.ref(
        randomId
      );

      // Create upload task.
      const task: AngularFireUploadTask = this.angularFireStorage.upload(
        randomId,
        file
      );

      // Upload file to Cloud Firestore.
      task
        .snapshotChanges()
        .pipe(
          finalize(() => {
            fileRef.getDownloadURL().subscribe(downloadURL => {
              this.angularFirestore
                .collection('files')
                .add({ downloadURL: downloadURL });
              this.downloadURL.push(downloadURL);
            });
          }),
          catchError((error: any) => {
            return throwError(error);
          })
        )
        .subscribe();
    }
  }

存储规则

rules_version = '2';
service firebase.storage {
  match /b/{bucket}/o {
    match /{allPaths=**} {
        allow read; // Required in order to send this as attachment.
      // Allow write files Firebase Storage, only if:
      // 1) File is no more than 20MB
      // 2) Content type is in one of the following formats: .doc, .docx, .jpg, .jpeg, .pdf, .png, .xls, .xlsx.
      allow write: if request.resource.size <= 20 * 1024 * 1024
                   && (request.resource.contentType.matches('application/msword')
                   || request.resource.contentType.matches('application/vnd.openxmlformats-officedocument.wordprocessingml.document')
                   || request.resource.contentType.matches('image/jpg')
                   || request.resource.contentType.matches('image/jpeg')
                   || request.resource.contentType.matches('application/pdf')
                                     || request.resource.contentType.matches('image/png')
                   || request.resource.contentType.matches('application/vnd.ms-excel')
                   || request.resource.contentType.matches('application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'))
    }
  }
}

Answer 1

根据您得到的消息，您的问题与FireBase中的IAM角色有关。

这里是这些的快速概述。

检查您正在得到的错误消息，并确保您正在部署的实例或您正在使用的服务帐户具有所需的角色，使它们能够执行您想要执行的操作。