我正在做一个教程,涉及iframe src属性的设置:
<iframe width="100%" height="300" src="{{video.url}}"></iframe>
这会抛出一个异常:
Error: unsafe value used in a resource URL context
at DomSanitizationServiceImpl.sanitize...
我已经尝试使用[src]绑定,但没有成功。
我正在做一个教程,涉及iframe src属性的设置:
<iframe width="100%" height="300" src="{{video.url}}"></iframe>
这会抛出一个异常:
Error: unsafe value used in a resource URL context
at DomSanitizationServiceImpl.sanitize...
我已经尝试使用[src]绑定,但没有成功。
当前回答
这个适合我。
import { Component,Input,OnInit} from '@angular/core';
import {DomSanitizer,SafeResourceUrl,} from '@angular/platform-browser';
@Component({
moduleId: module.id,
selector: 'player',
templateUrl: './player.component.html',
styleUrls:['./player.component.scss'],
})
export class PlayerComponent implements OnInit{
@Input()
id:string;
url: SafeResourceUrl;
constructor (public sanitizer:DomSanitizer) {
}
ngOnInit() {
this.url = this.sanitizer.bypassSecurityTrustResourceUrl(this.id);
}
}
其他回答
这个适合我。
import { Component,Input,OnInit} from '@angular/core';
import {DomSanitizer,SafeResourceUrl,} from '@angular/platform-browser';
@Component({
moduleId: module.id,
selector: 'player',
templateUrl: './player.component.html',
styleUrls:['./player.component.scss'],
})
export class PlayerComponent implements OnInit{
@Input()
id:string;
url: SafeResourceUrl;
constructor (public sanitizer:DomSanitizer) {
}
ngOnInit() {
this.url = this.sanitizer.bypassSecurityTrustResourceUrl(this.id);
}
}
这样我就可以使用Angular 5.2.0了
fileName.Component.ts
import { Component, OnInit, Input } from '@angular/core';
import { DomSanitizer, SafeResourceUrl } from '@angular/platform-browser';
@Component({
selector: 'app-sample',
templateUrl: './fileName.component.html',
styleUrls: ['./fileName.component.scss']
})
export class FileName implements OnInit {
@Input()
url: string = "https://www.mmlpqtpkasjdashdjahd.com";
urlSafe: SafeResourceUrl;
constructor(public sanitizer: DomSanitizer) { }
ngOnInit() {
this.urlSafe= this.sanitizer.bypassSecurityTrustResourceUrl(this.url);
}
}
fileName.Component.html
<iframe width="100%" height="100%" frameBorder="0" [src]="urlSafe"></iframe>
伙计们,就这些!!
我将分享这个解决方案,即使这不是最佳实践,但它发生在我身上,我们不允许使用this. domsaniizer . bypasssecuritytrustresourceurl (url)解决方案,因为一个自动安全警告停止了CI/CD管道。
@Component({
template: '<iframe #iframeRef></iframe>'
})
export class UnsafeUrlBypassIframeSampleComponent implements AfterViewInit {
@ViewChild('iframeRef') iframe: ElementRef<HTMLIFrameElement>;
constructor(private renderer: Renderer2) {}
ngAfterViewInit() {
const MY_UNSAFE_URL = '/path/to/something';
this.renderer.setProperty(this.iframe.nativeElement, 'src', MY_UNSAFE_URL);
}
}
如果你确实需要绕过Angular的安全系统,而这将不可避免地导致漏洞,那么最好明确地这样做。
说实话,所有的答案似乎都是错的。使用this. saniizer . bypasssecuritytrustresourceurl (url)仅绕过安全性,并将url视为SafeResourceUrl。但是,给定的url仍然可能是恶意的,导致安全违规。医生也这么说:https://angular.io/api/platform-browser/DomSanitizer#bypassSecurityTrustResourceUrl
一个解决方案是首先调用sanitizer,然后将sanitizer的返回值传递给bypassSecurityTrustResourceUrl,如下所示:
this.sanitizer.bypassSecurityTrustResourceUrl (this.sanitizer.sanitize (SecurityContext。URL、URL))
通过这种方式,您可以清除任何恶意代码,然后绕过表示这确实是一个安全url的安全性。
更新v8
下面回答工作,但暴露您的应用程序的XSS安全风险! 与其使用this. domsaniizer . bypasssecuritytrustresourceurl (url),不如使用this. domsaniizer .sanitize(SecurityContext. sanitize)。URL, URL)
更新
对于RC.6^版本使用DomSanitizer
砰砰作响
一个好的选择是使用纯管道:
import { Pipe, PipeTransform } from '@angular/core';
import { DomSanitizer} from '@angular/platform-browser';
@Pipe({ name: 'safe' })
export class SafePipe implements PipeTransform {
constructor(private domSanitizer: DomSanitizer) {}
transform(url) {
return this.domSanitizer.bypassSecurityTrustResourceUrl(url);
}
}
记得把你的新SafePipe添加到AppModule的declarations数组中。(详见文件)
@NgModule({
declarations : [
...
SafePipe
],
})
html
<iframe width="100%" height="300" [src]="url | safe"></iframe>
砰砰作响
如果你使用嵌入标签,这可能对你很有趣:
如何使用angular2rc。6禁用消毒嵌入HTML标签显示PDF
旧版RC.5
你可以像这样利用DomSanitizationService:
export class YourComponent {
url: SafeResourceUrl;
constructor(domSanitizationService: DomSanitizationService) {
this.url = domSanitizer.bypassSecurityTrustResourceUrl('your url');
}
}
然后在模板中绑定到url:
<iframe width="100%" height="300" [src]="url"></iframe>
不要忘记添加以下导入:
import { SafeResourceUrl, DomSanitizationService } from '@angular/platform-browser';
砰砰作响的样本