Merge branch 'master' of http://git.fmode.cn:3000/bin/edu-textbook

projects/textbook/src/app/comp-upload/comp-upload.component.ts

@@ -6,11 +6,13 @@ import { NzUploadChangeParam, NzUploadFile } from 'ng-zorro-antd/upload';
 import { ProvierOssAli } from './provider-oss-aliyun';
 import { NzImageService } from 'ng-zorro-antd/image';
 import { NzImageModule } from 'ng-zorro-antd/image';
+import { NzNotificationModule } from 'ng-zorro-antd/notification';
+import { NzNotificationService } from 'ng-zorro-antd/notification';
 
 @Component({
   selector: 'app-comp-upload',
   standalone: true,
-  imports: [NzUploadModule, CommonCompModule, NzImageModule],
+  imports: [NzUploadModule, CommonCompModule, NzImageModule,NzNotificationModule],
   templateUrl: './comp-upload.component.html',
   styleUrls: ['./comp-upload.component.scss'],
 })
@@ -56,11 +58,12 @@ export class CompUploadComponent implements OnInit {
   Previewfilelist: any;
   ossProvider: { upload: any } | undefined;
 
-  disabled:boolean = false
+  disabled: boolean = false
 
   constructor(
     private msg: NzMessageService,
-    private nzImageService: NzImageService
+    private nzImageService: NzImageService,
+    private notification: NzNotificationService
   ) {
     this.ossProvider = new ProvierOssAli();
   }
@@ -78,9 +81,13 @@ export class CompUploadComponent implements OnInit {
   }
   async handleChange(info: NzUploadChangeParam) {
     console.log(info);
-    if(info.type == 'removed'){
+    if (info.type == 'removed') {
       return
     }
+    let isEncrypt = await this.isEncrypt(info)
+    // if (isEncrypt) {
+    //   return
+    // }
     this.disabled = true
     if (info.file.status !== 'uploading') {
       // 选择文件后，自动开始上传
@@ -93,7 +100,7 @@ export class CompUploadComponent implements OnInit {
         };
         return f;
       })
-      
+
       let fileList = [...this.fileList, ...nowUploadFiles];
       this.fileList = fileList.slice(-this.maxlenght);
       // fileList = fileList.map((file) => {
@@ -106,7 +113,6 @@ export class CompUploadComponent implements OnInit {
 
       this.Previewfilelist = [...this.fileList];
       // this.ossFileList = ossFileList;
-
       this.change.emit(this.fileList);
       this.disabled = false
     }
@@ -127,7 +133,7 @@ export class CompUploadComponent implements OnInit {
         let ossFile;
         try {
           ossFile = await this.ossProvider?.upload(file?.originFileObj);
-        } catch (err) {}
+        } catch (err) { }
         if (ossFile) {
           ossFile.locaname = file.name;
           ossFileList.push(ossFile);
@@ -136,10 +142,10 @@ export class CompUploadComponent implements OnInit {
     }
     return ossFileList;
   }
-  onRemove = (e: any):boolean =>{
+  onRemove = (e: any): boolean => {
     console.log(e);
-    let i =  this.fileList.findIndex((item:any)=> item.url == e?.url)
-    this.fileList.splice(i,1)
+    let i = this.fileList.findIndex((item: any) => item.url == e?.url)
+    this.fileList.splice(i, 1)
     this.change.emit(this.fileList);
     return false
   }
@@ -156,4 +162,37 @@ export class CompUploadComponent implements OnInit {
       this.nzImageService.preview([{ src: url }], { nzZoom: 1, nzRotate: 0 });
     }
   };
+  timeOut: any
+  /**判断pdf文件是否加密 */
+  isEncrypt(info: NzUploadChangeParam): Promise<boolean> {//只查file，不查fileList
+    return new Promise((resolve) => {
+      let isEncrypt: boolean = false
+      if (info.file.originFileObj) {
+        let reader = new FileReader()
+        let file = info.file.originFileObj
+        reader.readAsArrayBuffer(file)
+        reader.onload = () => {
+          if (reader.result) {
+            let files = new Blob([reader.result], { type: 'application/pdf' })
+            files.text().then(x => {
+              isEncrypt = x.substring(x.lastIndexOf("<<"), x.lastIndexOf(">>")).includes("/Encrypt")
+              if (isEncrypt) {
+                clearTimeout(this.timeOut)
+                this.timeOut = setTimeout(() => {
+                  this.notification.create(
+                    'error',
+                    '请勿上传加密文件',
+                    `${file.name} 为加密文件，影响导出，请替换。`,
+                    { nzDuration: 0 }
+                  );
+
+                }, 1000);
+              }
+              resolve(isEncrypt)
+            })
+          } else { resolve(false) }
+        }
+      } else { resolve(false) }
+    })
+  }
 }