Create deezer.py

youtube_dl/downloader/deezer.py

@@ -0,0 +1,40 @@
+from Crypto.Cipher import Blowfish
+import binascii
+
+from .common import FileDownloader
+
+from ..utils import sanitized_Request
+
+def blowfishDecrypt(data, key):
+    """ CBC decrypt data with key """
+    c = Blowfish.new(key, Blowfish.MODE_CBC, binascii.a2b_hex("0001020304050607"))
+    return c.decrypt(data)
+
+
+def decryptfile(fh, key, fo):
+    """
+    Decrypt data from file <fh>, and write to file <fo>.
+    decrypt using blowfish with <key>.
+    Only every third 2048 byte block is encrypted.
+    """
+    i = 0
+    while True:
+        data = fh.read(2048)
+        if not data:
+            break
+
+        if (i % 3)==0 and len(data)==2048:
+            data = blowfishDecrypt(data, key)
+        fo.write(data)
+        i += 1
+
+
+class DeezerDownloader(FileDownloader):
+    def real_download(self, filename, info_dict):
+        url = info_dict['url']
+        request = sanitized_Request(url, None, {})
+        data = self.ydl.urlopen(request)
+
+        with open(filename, "wb") as fo:
+            decryptfile(data, info_dict['key'], fo)
+