From 7f09a662a0db2ad0a338645e4f2dbd43056a6fa6 Mon Sep 17 00:00:00 2001
From: Yen Chi Hsuan <yan12125@gmail.com>
Date: Tue, 24 Feb 2015 23:55:57 +0800
Subject: [PATCH] [Letv] Add new extractor. Single video only

---
 youtube_dl/extractor/__init__.py |   1 +
 youtube_dl/extractor/letv.py     | 120 +++++++++++++++++++++++++++++++
 2 files changed, 121 insertions(+)
 create mode 100644 youtube_dl/extractor/letv.py

diff --git a/youtube_dl/extractor/__init__.py b/youtube_dl/extractor/__init__.py
index 40fc92cf7..829ab18a9 100644
--- a/youtube_dl/extractor/__init__.py
+++ b/youtube_dl/extractor/__init__.py
@@ -237,6 +237,7 @@ from .krasview import KrasViewIE
 from .ku6 import Ku6IE
 from .la7 import LA7IE
 from .laola1tv import Laola1TvIE
+from .letv import LetvIE
 from .lifenews import LifeNewsIE
 from .liveleak import LiveLeakIE
 from .livestream import (
diff --git a/youtube_dl/extractor/letv.py b/youtube_dl/extractor/letv.py
new file mode 100644
index 000000000..3eb20678e
--- /dev/null
+++ b/youtube_dl/extractor/letv.py
@@ -0,0 +1,120 @@
+# coding: utf-8
+from __future__ import unicode_literals
+
+import os.path
+import time
+import datetime
+
+from .common import InfoExtractor
+from ..compat import (compat_urlparse, compat_urllib_parse)
+from ..utils import (ExtractorError, parse_iso8601)
+
+
+class LetvIE(InfoExtractor):
+    _VALID_URL = r'http://www.letv.com/ptv/vplay/(?P<id>\d+).html'
+
+    _TESTS = [{
+        'url': 'http://www.letv.com/ptv/vplay/22005890.html',
+        'md5': 'cab23bd68d5a8db9be31c9a222c1e8df',
+        'info_dict': {
+            'id': '22005890',
+            'ext': 'mp4',
+            'title': '第87届奥斯卡颁奖礼完美落幕 《鸟人》成最大赢家',
+            'timestamp': 1424747397,
+            'upload_date': '20150224',
+        }
+    }, {
+        'url': 'http://www.letv.com/ptv/vplay/1118082.html',
+        'info_dict': {
+            'id': '1118082',
+            'ext': 'mp4',
+        }
+    }]
+
+    @staticmethod
+    def urshift(val, n):
+        return val >> n if val >= 0 else (val + 0x100000000) >> n
+
+    # ror() and calcTimeKey() are reversed from a embedded swf file in KLetvPlayer.swf
+    def ror(self, param1, param2):
+        _loc3_ = 0
+        while _loc3_ < param2:
+            param1 = self.urshift(param1, 1) + ((param1 & 1) << 31)
+            _loc3_ += 1
+        return param1
+
+    def calcTimeKey(self, param1):
+        _loc2_ = 773625421
+        _loc3_ = self.ror(param1, _loc2_ % 13)
+        _loc3_ = _loc3_ ^ _loc2_
+        _loc3_ = self.ror(_loc3_, _loc2_ % 17)
+        return _loc3_
+
+    def _real_extract(self, url):
+        media_id = self._match_id(url)
+        page = self._download_webpage(url, media_id)
+        params = {
+            'id': media_id,
+            'platid': 1,
+            'splatid': 101,
+            'format': 1,
+            'tkey': self.calcTimeKey(int(time.time())),
+            'domain': 'www.letv.com'
+        }
+        play_json = self._download_json(
+            'http://api.letv.com/mms/out/video/playJson?' + compat_urllib_parse.urlencode(params),
+            media_id, 'playJson data')
+
+        # Check for errors
+        playstatus = play_json['playstatus']
+        if playstatus['status'] == 0:
+            flag = playstatus['flag']
+            if flag == 1:
+                msg = 'Country %s auth error' % playstatus['country']
+            else:
+                msg = 'Generic error. flag = %d' % flag
+            raise ExtractorError(msg, expected=True)
+
+        playurl = play_json['playurl']
+
+        formats = ['350', '1000', '1300', '720p', '1080p']
+        dispatch = playurl['dispatch']
+
+        urls = []
+        for format_id in formats:
+            if format_id in dispatch:
+                media_url = playurl['domain'][0] + dispatch[format_id][0]
+
+                # Mimic what flvxz.com do
+                url_parts = list(compat_urlparse.urlparse(media_url))
+                qs = dict(compat_urlparse.parse_qs(url_parts[4]))
+                qs.update({
+                    'platid': '14',
+                    'splatid': '1401',
+                    'tss': 'no',
+                    'retry': 1
+                })
+                url_parts[4] = compat_urllib_parse.urlencode(qs)
+                media_url = compat_urlparse.urlunparse(url_parts)
+
+                url_info_dict = {
+                    'url': media_url,
+                    'ext': os.path.splitext(dispatch[format_id][1])[1][1:]
+                }
+
+                if format_id[-1:] == 'p':
+                    url_info_dict['height'] = format_id[:-1]
+
+                urls.append(url_info_dict)
+
+        publish_time = parse_iso8601(self._html_search_regex(
+            r'发布时间&nbsp;([^<>]+) ', page, 'publish time', fatal=False),
+            delimiter=' ', timezone=datetime.timedelta(hours=8))
+
+        return {
+            'id': media_id,
+            'formats': urls,
+            'title': playurl['title'],
+            'thumbnail': playurl['pic'],
+            'timestamp': publish_time,
+        }