From bf78e7d8a8de218f327b08657ff007170ee87743 Mon Sep 17 00:00:00 2001
From: Aniruddh Joshi <aniruddh@ebincoweb.com>
Date: Sun, 25 Mar 2018 07:20:17 +0530
Subject: [PATCH] Added extractor for torrins.com

---
 youtube_dl/extractor/torrins.py | 160 ++++++++++++++++++++++++++++++++
 1 file changed, 160 insertions(+)
 create mode 100644 youtube_dl/extractor/torrins.py

diff --git a/youtube_dl/extractor/torrins.py b/youtube_dl/extractor/torrins.py
new file mode 100644
index 000000000..a8b247c89
--- /dev/null
+++ b/youtube_dl/extractor/torrins.py
@@ -0,0 +1,160 @@
+from __future__ import unicode_literals
+
+import re
+
+from .common import InfoExtractor
+from ..compat import (
+    compat_HTTPError,
+    compat_kwargs,
+    compat_str,
+    compat_urllib_request,
+    compat_urlparse,
+)
+from ..utils import (
+    determine_ext,
+    extract_attributes,
+    ExtractorError,
+    float_or_none,
+    int_or_none,
+    js_to_json,
+    sanitized_Request,
+    unescapeHTML,
+    urlencode_postdata,
+)
+
+
+class TorrinsIE(InfoExtractor):
+    IE_NAME = 'torrins'
+    _VALID_URL = r'''(?x)
+                    https?://
+                        www\.torrins\.com/(?:guitar|piano|bass)-lessons/(?:song-lessons|style-genre)/[^/]+/(?P<id>[^/]+)/(?P<lesson_id>[^(\.)]+)\.html
+                    '''
+    _LOGIN_URL = 'https://www.torrins.com/services/user/sign-in'
+    _ORIGIN_URL = 'https://www.torrins.com'
+    _NETRC_MACHINE = 'torrins'
+
+    _TESTS = [{
+        'url': 'https://www.torrins.com/guitar-lessons/song-lessons/english-songs/another-brick-in-the-wall/song-demo.html',
+        'username': 'anirudha1987@gmail.com',
+        'password': 'hello123',
+        'info_dict': {
+            'id': 'another-brick-in-the-wall',
+            'lesson_id': 'song-demo',
+            'ext': 'mp4',
+            'title': 'Another Brick in the Wall Guitar - Song Demo',
+            'description': 'md5:c0d51f6f21ef4ec65f091055a5eef876',
+            'duration': 579.29,
+        },
+        'skip': 'Requires torrins premium account credentials',
+    }, {
+        # new URL schema
+        'url': 'https://www.torrins.com/guitar-lessons/song-lessons/english-songs/another-brick-in-the-wall/song-demo.html',
+        'only_matching': True,
+    }, {
+        # no url in outputs format entry
+        'url': 'https://www.torrins.com/guitar-lessons/style-genre/fingerstyle/tone-production.html',
+        'only_matching': True,
+    }]
+
+    def _handle_error(self, response):
+        if not isinstance(response, dict):
+            return
+        error = response.get('error')
+        if error:
+            error_str = 'Torrins returned error #%s: %s' % (error.get('code'), error.get('message'))
+            error_data = error.get('data')
+            if error_data:
+                error_str += ' - %s' % error_data.get('formErrors')
+            raise ExtractorError(error_str, expected=True)
+
+    def _download_webpage(self, *args, **kwargs):
+        kwargs.setdefault('headers', {})['User-Agent'] = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) AppleWebKit/603.2.4 (KHTML, like Gecko) Version/10.1.1 Safari/603.2.4'
+        return super(TorrinsIE, self)._download_webpage(
+            *args, **compat_kwargs(kwargs))
+
+    def _real_initialize(self):
+        self._login()
+
+    def _login(self):
+        (username, password) = self._get_login_info()
+        if username is None:
+            return
+
+        login_popup = self._download_webpage(
+            self._LOGIN_URL, None, 'Downloading login popup')
+
+        def is_logged(reason):
+            webpage = self._download_webpage(self._ORIGIN_URL, None, reason)
+
+            return any(re.search(p, webpage) for p in (
+                r'id=["\'](?:bt-logout)',
+                r'>Logout<'))
+
+        # already logged in
+        if is_logged('Checking if already logged in'):
+            return
+
+        #login_form = self._form_hidden_inputs('login-form', login_popup)
+
+        login_form = {
+            'email': username,
+            'password': password,
+        }
+
+        response = self._download_webpage(
+            self._LOGIN_URL, None, 'Logging in',
+            data=urlencode_postdata(login_form),
+            headers={
+                'Referer': self._ORIGIN_URL,
+                'Origin': self._ORIGIN_URL,
+            })
+
+        if not is_logged('Post login check'):
+            error = self._html_search_regex(
+                r'(?s)<div[^>]+class="form-errors[^"]*">(.+?)</div>',
+                response, 'error message', default=None)
+            if error:
+                raise ExtractorError('Unable to login: %s' % error, expected=True)
+            raise ExtractorError('Unable to log in')
+
+    def _real_extract(self, url):
+        course_id = self._match_id(url)
+
+        webpage = self._download_webpage(url, course_id)
+
+        title = self._og_search_title(webpage)
+
+        video_json = self._html_search_regex(r"<div id=\"video\" idata='(.+?)'", webpage, u'video formats')
+
+        video_json = self._parse_json(video_json, course_id)
+
+        title = video_json.get('title')
+        video_id = video_json.get('id')
+
+        formats = [
+            {
+                'url': video_json.get('low'),
+                'format_id': 'low',
+                'height': 240,
+                'ext': 'mp4'
+            },
+            {
+                'url': video_json.get('medium'),
+                'format_id': 'medium',
+                'height': 360,
+                'ext': 'mp4'
+            },
+            {
+                'url': video_json.get('high'),
+                'format_id': 'high',
+                'height': 480,
+                'ext': 'mp4'
+            }
+        ]
+
+
+        return {
+            'id': video_id,
+            'title': title,
+            'formats': formats
+        }
\ No newline at end of file