feat(provider): add ttsave provider

lib/providers/index.ts

@@ -1,15 +1,17 @@
 import type {BaseProvider} from './baseProvider';
-import {MusicalyDown} from './musicalyDown';
+import {MusicalyDown} from './musicalyDownProvider';
 
 import {SnaptikProvider} from './snaptikProvider';
 import {TikmateProvider} from './tikmateProvider';
-import {TTDownloader} from './ttDownloader';
+import {TTDownloader} from './ttDownloaderProvider';
+import {TTSave} from './ttSaveProvider';
 
 export const Providers: BaseProvider[] = [
   new SnaptikProvider(),
   new TikmateProvider(),
   new MusicalyDown(),
   new TTDownloader(),
+  new TTSave(),
 ];
 
 export const getRandomProvider = () => Providers[

lib/providers/ttSaveProvider.ts

@@ -0,0 +1,57 @@
+import {getFetch} from '..';
+import {BaseProvider, ExtractedInfo} from './baseProvider';
+import {keyGeneratorTTSave} from './util';
+
+/**
+ * @class TTSave
+ */
+export class TTSave extends BaseProvider {
+  /**
+     * @return {string}
+     */
+  public resourceName(): string {
+    return 'ttsave';
+  }
+
+  public client = getFetch('https://ttsave.app');
+
+  /**
+   *
+   * @param {string} url - TikTok Video URL
+   * @return {Promise<ExtractedInfo>}
+   */
+  public async fetch(url: string): Promise<ExtractedInfo> {
+    // getting token
+    const response = await this.client('./');
+    const token = (
+          response.body.match(/doDownload\(id, '([^']+)'\)/) as string[]
+    )[0].split('\'')[1];
+
+    const dlResponse = await this.client.post('./download.php', {
+      'json': {
+        'id': url,
+        'token': token,
+        'key': keyGeneratorTTSave(token),
+      },
+      'headers': {
+        'Origin': this.client.defaults.options.prefixUrl,
+        'Referer': this.client.defaults.options.prefixUrl,
+        'Cookie': response.headers['set-cookie']?.toString(),
+      },
+    });
+
+    return this.extract(dlResponse.body);
+  }
+
+  /**
+   *
+   * @param {string} html - HTML Raw
+   * @return {ExtractedInfo}
+   */
+  extract(html: string): ExtractedInfo {
+    console.log(html);
+    return {
+      'error': '',
+    };
+  }
+};

lib/providers/util/generator.ts

@@ -0,0 +1,11 @@
+/**
+ * Generate key for ttsave.app
+ *
+ * @param {string} token - Generated token by TTSave
+ * @return {string}
+ */
+export const keyGeneratorTTSave = (token: string): string => {
+  // the key must have 550 character length. ~ hansputera
+  const tokenReversed = token.split('').reverse().join('');
+  return tokenReversed.slice(-550);
+};

lib/providers/util/index.ts

@@ -1 +1,2 @@
 export * from './extractor';
+export * from './generator';