big refactor

app/ownedFile.js

@@ -0,0 +1,81 @@
+import Keychain from './keychain';
+import { arrayToB64 } from './utils';
+import { del, metadata, setParams, setPassword } from './api';
+
+export default class OwnedFile {
+  constructor(obj, storage) {
+    this.id = obj.id;
+    this.url = obj.url;
+    this.name = obj.name;
+    this.size = obj.size;
+    this.type = obj.type;
+    this.time = obj.time;
+    this.speed = obj.speed;
+    this.createdAt = obj.createdAt;
+    this.expiresAt = obj.expiresAt;
+    this.ownerToken = obj.ownerToken;
+    this.dlimit = obj.dlimit || 1;
+    this.dtotal = obj.dtotal || 0;
+    this.keychain = new Keychain(obj.secretKey, obj.nonce);
+    this.keychain.on('nonceChanged', () => storage.writeFile(this));
+    if (obj.authKeyB64) {
+      this.authKeyB64 = obj.authKeyB64;
+      this.keychain.setAuthKey(obj.authKeyB64);
+    }
+  }
+
+  async setPassword(password) {
+    this.password = password;
+    this.keychain.setPassword(password, this.url);
+    const result = await setPassword(this.id, this.ownerToken, this.keychain);
+    this.authKeyB64 = await this.keychain.authKeyB64();
+    return result;
+  }
+
+  del() {
+    return del(this.id, this.ownerToken);
+  }
+
+  changeLimit(dlimit) {
+    if (this.dlimit !== dlimit) {
+      this.dlimit = dlimit;
+      return setParams(this.id, this.ownerToken, { dlimit });
+    }
+    return Promise.resolve(true);
+  }
+
+  hasPassword() {
+    return !!this.authKeyB64;
+  }
+
+  async updateDownloadCount() {
+    try {
+      const result = await metadata(this.id, this.keychain);
+      this.dtotal = result.dtotal;
+    } catch (e) {
+      if (e.message === '404') {
+        this.dtotal = this.dlimit;
+      }
+    }
+  }
+
+  toJSON() {
+    return {
+      id: this.id,
+      url: this.url,
+      name: this.name,
+      size: this.size,
+      type: this.type,
+      time: this.time,
+      speed: this.speed,
+      createdAt: this.createdAt,
+      expiresAt: this.expiresAt,
+      secretKey: arrayToB64(this.keychain.rawSecret),
+      nonce: this.keychain.nonce,
+      ownerToken: this.ownerToken,
+      dlimit: this.dlimit,
+      dtotal: this.dtotal,
+      authKeyB64: this.authKeyB64
+    };
+  }
+}