Merge remote-tracking branch 'rzhxeo/crunchyroll'

youtube_dl/aes.py

@@ -1,4 +1,4 @@
-__all__ = ['aes_encrypt', 'key_expansion', 'aes_ctr_decrypt', 'aes_decrypt_text']
+__all__ = ['aes_encrypt', 'key_expansion', 'aes_ctr_decrypt', 'aes_cbc_decrypt', 'aes_decrypt_text']
 
 import base64
 from math import ceil
@@ -32,6 +32,31 @@ def aes_ctr_decrypt(data, key, counter):
     
     return decrypted_data
 
+def aes_cbc_decrypt(data, key, iv):
+    """
+    Decrypt with aes in CBC mode
+    
+    @param {int[]} data        cipher
+    @param {int[]} key         16/24/32-Byte cipher key
+    @param {int[]} iv          16-Byte IV
+    @returns {int[]}           decrypted data
+    """
+    expanded_key = key_expansion(key)
+    block_count = int(ceil(float(len(data)) / BLOCK_SIZE_BYTES))
+    
+    decrypted_data=[]
+    previous_cipher_block = iv
+    for i in range(block_count):
+        block = data[i*BLOCK_SIZE_BYTES : (i+1)*BLOCK_SIZE_BYTES]
+        block += [0]*(BLOCK_SIZE_BYTES - len(block))
+        
+        decrypted_block = aes_decrypt(block, expanded_key)
+        decrypted_data += xor(decrypted_block, previous_cipher_block)
+        previous_cipher_block = block
+    decrypted_data = decrypted_data[:len(data)]
+    
+    return decrypted_data
+
 def key_expansion(data):
     """
     Generate key schedule
@@ -86,6 +111,26 @@ def aes_encrypt(data, expanded_key):
 
     return data
 
+def aes_decrypt(data, expanded_key):
+    """
+    Decrypt one block with aes
+    
+    @param {int[]} data          16-Byte cipher
+    @param {int[]} expanded_key  176/208/240-Byte expanded key
+    @returns {int[]}             16-Byte state
+    """
+    rounds = len(expanded_key) // BLOCK_SIZE_BYTES - 1
+    
+    for i in range(rounds, 0, -1):
+        data = xor(data, expanded_key[i*BLOCK_SIZE_BYTES : (i+1)*BLOCK_SIZE_BYTES])
+        if i != rounds:
+            data = mix_columns_inv(data)
+        data = shift_rows_inv(data)
+        data = sub_bytes_inv(data)
+    data = xor(data, expanded_key[:BLOCK_SIZE_BYTES])
+    
+    return data
+
 def aes_decrypt_text(data, password, key_size_bytes):
     """
     Decrypt text
@@ -139,14 +184,69 @@ SBOX = (0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5, 0x30, 0x01, 0x67, 0x2B,
         0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E, 0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E,
         0xE1, 0xF8, 0x98, 0x11, 0x69, 0xD9, 0x8E, 0x94, 0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF,
         0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68, 0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16)
-MIX_COLUMN_MATRIX = ((2,3,1,1),
-                     (1,2,3,1),
-                     (1,1,2,3),
-                     (3,1,1,2))
+SBOX_INV = (0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,
+            0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,
+            0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
+            0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,
+            0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,
+            0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
+            0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,
+            0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,
+            0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
+            0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,
+            0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
+            0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
+            0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,
+            0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,
+            0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
+            0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d)
+MIX_COLUMN_MATRIX = ((0x2,0x3,0x1,0x1),
+                     (0x1,0x2,0x3,0x1),
+                     (0x1,0x1,0x2,0x3),
+                     (0x3,0x1,0x1,0x2))
+MIX_COLUMN_MATRIX_INV = ((0xE,0xB,0xD,0x9),
+                         (0x9,0xE,0xB,0xD),
+                         (0xD,0x9,0xE,0xB),
+                         (0xB,0xD,0x9,0xE))
+RIJNDAEL_EXP_TABLE = (0x01, 0x03, 0x05, 0x0F, 0x11, 0x33, 0x55, 0xFF, 0x1A, 0x2E, 0x72, 0x96, 0xA1, 0xF8, 0x13, 0x35,
+                      0x5F, 0xE1, 0x38, 0x48, 0xD8, 0x73, 0x95, 0xA4, 0xF7, 0x02, 0x06, 0x0A, 0x1E, 0x22, 0x66, 0xAA,
+                      0xE5, 0x34, 0x5C, 0xE4, 0x37, 0x59, 0xEB, 0x26, 0x6A, 0xBE, 0xD9, 0x70, 0x90, 0xAB, 0xE6, 0x31,
+                      0x53, 0xF5, 0x04, 0x0C, 0x14, 0x3C, 0x44, 0xCC, 0x4F, 0xD1, 0x68, 0xB8, 0xD3, 0x6E, 0xB2, 0xCD,
+                      0x4C, 0xD4, 0x67, 0xA9, 0xE0, 0x3B, 0x4D, 0xD7, 0x62, 0xA6, 0xF1, 0x08, 0x18, 0x28, 0x78, 0x88,
+                      0x83, 0x9E, 0xB9, 0xD0, 0x6B, 0xBD, 0xDC, 0x7F, 0x81, 0x98, 0xB3, 0xCE, 0x49, 0xDB, 0x76, 0x9A,
+                      0xB5, 0xC4, 0x57, 0xF9, 0x10, 0x30, 0x50, 0xF0, 0x0B, 0x1D, 0x27, 0x69, 0xBB, 0xD6, 0x61, 0xA3,
+                      0xFE, 0x19, 0x2B, 0x7D, 0x87, 0x92, 0xAD, 0xEC, 0x2F, 0x71, 0x93, 0xAE, 0xE9, 0x20, 0x60, 0xA0,
+                      0xFB, 0x16, 0x3A, 0x4E, 0xD2, 0x6D, 0xB7, 0xC2, 0x5D, 0xE7, 0x32, 0x56, 0xFA, 0x15, 0x3F, 0x41,
+                      0xC3, 0x5E, 0xE2, 0x3D, 0x47, 0xC9, 0x40, 0xC0, 0x5B, 0xED, 0x2C, 0x74, 0x9C, 0xBF, 0xDA, 0x75,
+                      0x9F, 0xBA, 0xD5, 0x64, 0xAC, 0xEF, 0x2A, 0x7E, 0x82, 0x9D, 0xBC, 0xDF, 0x7A, 0x8E, 0x89, 0x80,
+                      0x9B, 0xB6, 0xC1, 0x58, 0xE8, 0x23, 0x65, 0xAF, 0xEA, 0x25, 0x6F, 0xB1, 0xC8, 0x43, 0xC5, 0x54,
+                      0xFC, 0x1F, 0x21, 0x63, 0xA5, 0xF4, 0x07, 0x09, 0x1B, 0x2D, 0x77, 0x99, 0xB0, 0xCB, 0x46, 0xCA,
+                      0x45, 0xCF, 0x4A, 0xDE, 0x79, 0x8B, 0x86, 0x91, 0xA8, 0xE3, 0x3E, 0x42, 0xC6, 0x51, 0xF3, 0x0E,
+                      0x12, 0x36, 0x5A, 0xEE, 0x29, 0x7B, 0x8D, 0x8C, 0x8F, 0x8A, 0x85, 0x94, 0xA7, 0xF2, 0x0D, 0x17,
+                      0x39, 0x4B, 0xDD, 0x7C, 0x84, 0x97, 0xA2, 0xFD, 0x1C, 0x24, 0x6C, 0xB4, 0xC7, 0x52, 0xF6, 0x01)
+RIJNDAEL_LOG_TABLE = (0x00, 0x00, 0x19, 0x01, 0x32, 0x02, 0x1a, 0xc6, 0x4b, 0xc7, 0x1b, 0x68, 0x33, 0xee, 0xdf, 0x03,
+                      0x64, 0x04, 0xe0, 0x0e, 0x34, 0x8d, 0x81, 0xef, 0x4c, 0x71, 0x08, 0xc8, 0xf8, 0x69, 0x1c, 0xc1,
+                      0x7d, 0xc2, 0x1d, 0xb5, 0xf9, 0xb9, 0x27, 0x6a, 0x4d, 0xe4, 0xa6, 0x72, 0x9a, 0xc9, 0x09, 0x78,
+                      0x65, 0x2f, 0x8a, 0x05, 0x21, 0x0f, 0xe1, 0x24, 0x12, 0xf0, 0x82, 0x45, 0x35, 0x93, 0xda, 0x8e,
+                      0x96, 0x8f, 0xdb, 0xbd, 0x36, 0xd0, 0xce, 0x94, 0x13, 0x5c, 0xd2, 0xf1, 0x40, 0x46, 0x83, 0x38,
+                      0x66, 0xdd, 0xfd, 0x30, 0xbf, 0x06, 0x8b, 0x62, 0xb3, 0x25, 0xe2, 0x98, 0x22, 0x88, 0x91, 0x10,
+                      0x7e, 0x6e, 0x48, 0xc3, 0xa3, 0xb6, 0x1e, 0x42, 0x3a, 0x6b, 0x28, 0x54, 0xfa, 0x85, 0x3d, 0xba,
+                      0x2b, 0x79, 0x0a, 0x15, 0x9b, 0x9f, 0x5e, 0xca, 0x4e, 0xd4, 0xac, 0xe5, 0xf3, 0x73, 0xa7, 0x57,
+                      0xaf, 0x58, 0xa8, 0x50, 0xf4, 0xea, 0xd6, 0x74, 0x4f, 0xae, 0xe9, 0xd5, 0xe7, 0xe6, 0xad, 0xe8,
+                      0x2c, 0xd7, 0x75, 0x7a, 0xeb, 0x16, 0x0b, 0xf5, 0x59, 0xcb, 0x5f, 0xb0, 0x9c, 0xa9, 0x51, 0xa0,
+                      0x7f, 0x0c, 0xf6, 0x6f, 0x17, 0xc4, 0x49, 0xec, 0xd8, 0x43, 0x1f, 0x2d, 0xa4, 0x76, 0x7b, 0xb7,
+                      0xcc, 0xbb, 0x3e, 0x5a, 0xfb, 0x60, 0xb1, 0x86, 0x3b, 0x52, 0xa1, 0x6c, 0xaa, 0x55, 0x29, 0x9d,
+                      0x97, 0xb2, 0x87, 0x90, 0x61, 0xbe, 0xdc, 0xfc, 0xbc, 0x95, 0xcf, 0xcd, 0x37, 0x3f, 0x5b, 0xd1,
+                      0x53, 0x39, 0x84, 0x3c, 0x41, 0xa2, 0x6d, 0x47, 0x14, 0x2a, 0x9e, 0x5d, 0x56, 0xf2, 0xd3, 0xab,
+                      0x44, 0x11, 0x92, 0xd9, 0x23, 0x20, 0x2e, 0x89, 0xb4, 0x7c, 0xb8, 0x26, 0x77, 0x99, 0xe3, 0xa5,
+                      0x67, 0x4a, 0xed, 0xde, 0xc5, 0x31, 0xfe, 0x18, 0x0d, 0x63, 0x8c, 0x80, 0xc0, 0xf7, 0x70, 0x07)
 
 def sub_bytes(data):
     return [SBOX[x] for x in data]
 
+def sub_bytes_inv(data):
+    return [SBOX_INV[x] for x in data]
+
 def rotate(data):
     return data[1:] + [data[0]]
 
@@ -160,30 +260,31 @@ def key_schedule_core(data, rcon_iteration):
 def xor(data1, data2):
     return [x^y for x, y in zip(data1, data2)]
 
-def mix_column(data):
+def rijndael_mul(a, b):
+    if(a==0 or b==0):
+        return 0
+    return RIJNDAEL_EXP_TABLE[(RIJNDAEL_LOG_TABLE[a] + RIJNDAEL_LOG_TABLE[b]) % 0xFF]
+
+def mix_column(data, matrix):
     data_mixed = []
     for row in range(4):
         mixed = 0
         for column in range(4):
-            addend = data[column]
-            if MIX_COLUMN_MATRIX[row][column] in (2,3):
-                addend <<= 1
-                if addend > 0xff:
-                    addend &= 0xff
-                    addend ^= 0x1b
-                if MIX_COLUMN_MATRIX[row][column] == 3:
-                    addend ^= data[column]
-            mixed ^= addend & 0xff
+            # xor is (+) and (-)
+            mixed ^= rijndael_mul(data[column], matrix[row][column])
         data_mixed.append(mixed)
     return data_mixed
 
-def mix_columns(data):
+def mix_columns(data, matrix=MIX_COLUMN_MATRIX):
     data_mixed = []
     for i in range(4):
         column = data[i*4 : (i+1)*4]
-        data_mixed += mix_column(column)
+        data_mixed += mix_column(column, matrix)
     return data_mixed
 
+def mix_columns_inv(data):
+    return mix_columns(data, MIX_COLUMN_MATRIX_INV)
+
 def shift_rows(data):
     data_shifted = []
     for column in range(4):
@@ -191,6 +292,13 @@ def shift_rows(data):
             data_shifted.append( data[((column + row) & 0b11) * 4 + row] )
     return data_shifted
 
+def shift_rows_inv(data):
+    data_shifted = []
+    for column in range(4):
+        for row in range(4):
+            data_shifted.append( data[((column - row) & 0b11) * 4 + row] )
+    return data_shifted
+
 def inc(data):
     data = data[:] # copy
     for i in range(len(data)-1,-1,-1):

youtube_dl/extractor/__init__.py

@@ -33,6 +33,7 @@ from .collegehumor import CollegeHumorIE
 from .comedycentral import ComedyCentralIE, ComedyCentralShowsIE
 from .condenast import CondeNastIE
 from .criterion import CriterionIE
+from .crunchyroll import CrunchyrollIE
 from .cspan import CSpanIE
 from .d8 import D8IE
 from .dailymotion import (

youtube_dl/extractor/crunchyroll.py

@@ -0,0 +1,171 @@
+# encoding: utf-8
+import re, base64, zlib
+from hashlib import sha1
+from math import pow, sqrt, floor
+from .common import InfoExtractor
+from ..utils import (
+    ExtractorError,
+    compat_urllib_parse,
+    compat_urllib_request,
+    bytes_to_intlist,
+    intlist_to_bytes,
+    unified_strdate,
+    clean_html,
+)
+from ..aes import (
+    aes_cbc_decrypt,
+    inc,
+)
+
+class CrunchyrollIE(InfoExtractor):
+    _VALID_URL = r'(?:https?://)?(?:www\.)?(?P<url>crunchyroll\.com/[^/]*/[^/?&]*?(?P<video_id>[0-9]+))(?:[/?&]|$)'
+    _TESTS = [{
+        u'url': u'http://www.crunchyroll.com/wanna-be-the-strongest-in-the-world/episode-1-an-idol-wrestler-is-born-645513',
+        u'file': u'645513.flv',
+        #u'md5': u'b1639fd6ddfaa43788c85f6d1dddd412',
+        u'info_dict': {
+            u'title': u'Wanna be the Strongest in the World – Episode 1 – An Idol-Wrestler is Born!',
+            u'description': u'md5:2d17137920c64f2f49981a7797d275ef',
+            u'thumbnail': u'http://img1.ak.crunchyroll.com/i/spire1-tmb/20c6b5e10f1a47b10516877d3c039cae1380951166_full.jpg',
+            u'uploader': u'Yomiuri Telecasting Corporation (YTV)',
+            u'upload_date': u'20131013',
+        },
+        u'params': {
+            # rtmp
+            u'skip_download': True,
+        },
+    }]
+
+    _FORMAT_IDS = {
+        u'360':  (u'60', u'106'),
+        u'480':  (u'61', u'106'),
+        u'720':  (u'62', u'106'),
+        u'1080': (u'80', u'108'),
+    }
+
+    def _decrypt_subtitles(self, data, iv, id):
+        data = bytes_to_intlist(data)
+        iv = bytes_to_intlist(iv)
+        id = int(id)
+
+        def obfuscate_key_aux(count, modulo, start):
+            output = list(start)
+            for _ in range(count):
+                output.append(output[-1] + output[-2])
+            # cut off start values
+            output = output[2:]
+            output = list(map(lambda x: x % modulo + 33, output))
+            return output
+
+        def obfuscate_key(key):
+            num1 = int(floor(pow(2, 25) * sqrt(6.9)))
+            num2 = (num1 ^ key) << 5
+            num3 = key ^ num1
+            num4 = num3 ^ (num3 >> 3) ^ num2
+            prefix = intlist_to_bytes(obfuscate_key_aux(20, 97, (1, 2)))
+            shaHash = bytes_to_intlist(sha1(prefix + str(num4).encode(u'ascii')).digest())
+            # Extend 160 Bit hash to 256 Bit
+            return shaHash + [0] * 12
+        
+        key = obfuscate_key(id)
+        class Counter:
+            __value = iv
+            def next_value(self):
+                temp = self.__value
+                self.__value = inc(self.__value)
+                return temp
+        decrypted_data = intlist_to_bytes(aes_cbc_decrypt(data, key, iv))
+        return zlib.decompress(decrypted_data)
+
+    def _convert_subtitles_to_srt(self, subtitles):
+        i=1
+        output = u''
+        for start, end, text in re.findall(r'<event [^>]*?start="([^"]+)" [^>]*?end="([^"]+)" [^>]*?text="([^"]+)"[^>]*?>', subtitles):
+            start = start.replace(u'.', u',')
+            end = end.replace(u'.', u',')
+            text = clean_html(text)
+            text = text.replace(u'\\N', u'\n')
+            if not text:
+                continue
+            output += u'%d\n%s --> %s\n%s\n\n' % (i, start, end, text)
+            i+=1
+        return output
+
+    def _real_extract(self,url):
+        mobj = re.match(self._VALID_URL, url)
+
+        webpage_url = u'http://www.' + mobj.group('url')
+        video_id = mobj.group(u'video_id')
+        webpage = self._download_webpage(webpage_url, video_id)
+        note_m = self._html_search_regex(r'<div class="showmedia-trailer-notice">(.+?)</div>', webpage, u'trailer-notice', default=u'')
+        if note_m:
+            raise ExtractorError(note_m)
+
+        video_title = self._html_search_regex(r'<h1[^>]*>(.+?)</h1>', webpage, u'video_title', flags=re.DOTALL)
+        video_title = re.sub(r' {5} *–? *', u' – ', video_title)
+        video_description = self._html_search_regex(r'"description":"([^"]+)', webpage, u'video_description', default=u'')
+        if not video_description:
+            video_description = None
+        video_upload_date = self._html_search_regex(r'<div>Availability for free users:(.+?)</div>', webpage, u'video_upload_date', fatal=False, flags=re.DOTALL)
+        if video_upload_date:
+            video_upload_date = unified_strdate(video_upload_date)
+        video_uploader = self._html_search_regex(r'<div>\s*Publisher:(.+?)</div>', webpage, u'video_uploader', fatal=False, flags=re.DOTALL)
+
+        playerdata_url = compat_urllib_parse.unquote(self._html_search_regex(r'"config_url":"([^"]+)', webpage, u'playerdata_url'))
+        playerdata_req = compat_urllib_request.Request(playerdata_url)
+        playerdata_req.data = compat_urllib_parse.urlencode({u'current_page': webpage_url})
+        playerdata_req.add_header(u'Content-Type', u'application/x-www-form-urlencoded')
+        playerdata = self._download_webpage(playerdata_req, video_id, note=u'Downloading media info')
+        
+        stream_id = self._search_regex(r'<media_id>([^<]+)', playerdata, u'stream_id')
+        video_thumbnail = self._search_regex(r'<episode_image_url>([^<]+)', playerdata, u'thumbnail', fatal=False)
+
+        formats = []
+        for fmt in re.findall(r'\?p([0-9]{3,4})=1', webpage):
+            stream_quality, stream_format = self._FORMAT_IDS[fmt]
+            video_format = fmt+u'p'
+            streamdata_req = compat_urllib_request.Request(u'http://www.crunchyroll.com/xml/')
+            # urlencode doesn't work!
+            streamdata_req.data = u'req=RpcApiVideoEncode%5FGetStreamInfo&video%5Fencode%5Fquality='+stream_quality+u'&media%5Fid='+stream_id+u'&video%5Fformat='+stream_format
+            streamdata_req.add_header(u'Content-Type', u'application/x-www-form-urlencoded')
+            streamdata_req.add_header(u'Content-Length', str(len(streamdata_req.data)))
+            streamdata = self._download_webpage(streamdata_req, video_id, note=u'Downloading media info for '+video_format)
+            video_url = self._search_regex(r'<host>([^<]+)', streamdata, u'video_url')
+            video_play_path = self._search_regex(r'<file>([^<]+)', streamdata, u'video_play_path')
+            formats.append({
+                u'url': video_url,
+                u'play_path':   video_play_path,
+                u'ext': 'flv',
+                u'format': video_format,
+                u'format_id': video_format,
+            })
+
+        subtitles = {}
+        for sub_id, sub_name in re.findall(r'\?ssid=([0-9]+)" title="([^"]+)', webpage):
+            sub_page = self._download_webpage(u'http://www.crunchyroll.com/xml/?req=RpcApiSubtitle_GetXml&subtitle_script_id='+sub_id,\
+                                              video_id, note=u'Downloading subtitles for '+sub_name)
+            id = self._search_regex(r'id=\'([0-9]+)', sub_page, u'subtitle_id', fatal=False)
+            iv = self._search_regex(r'<iv>([^<]+)', sub_page, u'subtitle_iv', fatal=False)
+            data = self._search_regex(r'<data>([^<]+)', sub_page, u'subtitle_data', fatal=False)
+            if not id or not iv or not data:
+                continue
+            id = int(id)
+            iv = base64.b64decode(iv)
+            data = base64.b64decode(data)
+
+            subtitle = self._decrypt_subtitles(data, iv, id).decode(u'utf-8')
+            lang_code = self._search_regex(r'lang_code=\'([^\']+)', subtitle, u'subtitle_lang_code', fatal=False)
+            if not lang_code:
+                continue
+            subtitles[lang_code] = self._convert_subtitles_to_srt(subtitle)
+
+        return {
+            u'id':          video_id,
+            u'title':       video_title,
+            u'description': video_description,
+            u'thumbnail':   video_thumbnail,
+            u'uploader':    video_uploader,
+            u'upload_date': video_upload_date,
+            u'subtitles':   subtitles,
+            u'formats':     formats,
+        }