From 5d49d879cc59beb417d04db17b2f18bb438b52e2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sergey=20M=E2=80=A4?= <dstftw@gmail.com>
Date: Fri, 9 Mar 2018 23:27:44 +0700
Subject: [PATCH] [raywenderlich] Add extractor (#15251)

---
 youtube_dl/extractor/extractors.py    |   1 +
 youtube_dl/extractor/raywenderlich.py | 103 ++++++++++++++++++++++++++
 2 files changed, 104 insertions(+)
 create mode 100644 youtube_dl/extractor/raywenderlich.py

diff --git a/youtube_dl/extractor/extractors.py b/youtube_dl/extractor/extractors.py
index 6011fd41f..bef3b82ee 100644
--- a/youtube_dl/extractor/extractors.py
+++ b/youtube_dl/extractor/extractors.py
@@ -875,6 +875,7 @@ from .rai import (
     RaiPlayPlaylistIE,
     RaiIE,
 )
+from .raywenderlich import RayWenderlichIE
 from .rbmaradio import RBMARadioIE
 from .rds import RDSIE
 from .redbulltv import RedBullTVIE
diff --git a/youtube_dl/extractor/raywenderlich.py b/youtube_dl/extractor/raywenderlich.py
new file mode 100644
index 000000000..0f061c4b2
--- /dev/null
+++ b/youtube_dl/extractor/raywenderlich.py
@@ -0,0 +1,103 @@
+from __future__ import unicode_literals
+
+import re
+
+from .common import InfoExtractor
+from .vimeo import VimeoIE
+from ..utils import (
+    extract_attributes,
+    ExtractorError,
+    orderedSet,
+    smuggle_url,
+    unsmuggle_url,
+    urljoin,
+)
+
+
+class RayWenderlichIE(InfoExtractor):
+    _VALID_URL = r'https?://videos\.raywenderlich\.com/courses/(?P<course_id>[^/]+)/lessons/(?P<id>\d+)'
+
+    _TESTS = [{
+        'url': 'https://videos.raywenderlich.com/courses/105-testing-in-ios/lessons/1',
+        'info_dict': {
+            'id': '248377018',
+            'ext': 'mp4',
+            'title': 'Testing In iOS Episode 1: Introduction',
+            'duration': 133,
+            'uploader': 'Ray Wenderlich',
+            'uploader_id': 'user3304672',
+        },
+        'params': {
+            'noplaylist': True,
+            'skip_download': True,
+        },
+        'add_ie': [VimeoIE.ie_key()],
+        'expected_warnings': ['HTTP Error 403: Forbidden'],
+    }, {
+        'url': 'https://videos.raywenderlich.com/courses/105-testing-in-ios/lessons/1',
+        'info_dict': {
+            'title': 'Testing in iOS',
+            'id': '105-testing-in-ios',
+        },
+        'params': {
+            'noplaylist': False,
+        },
+        'playlist_count': 29,
+    }]
+
+    def _real_extract(self, url):
+        url, smuggled_data = unsmuggle_url(url, {})
+
+        mobj = re.match(self._VALID_URL, url)
+        course_id, lesson_id = mobj.group('course_id', 'id')
+        video_id = '%s/%s' % (course_id, lesson_id)
+
+        webpage = self._download_webpage(url, video_id)
+
+        no_playlist = self._downloader.params.get('noplaylist')
+        if no_playlist or smuggled_data.get('force_video', False):
+            if no_playlist:
+                self.to_screen(
+                    'Downloading just video %s because of --no-playlist'
+                    % video_id)
+            if '>Subscribe to unlock' in webpage:
+                raise ExtractorError(
+                    'This content is only available for subscribers',
+                    expected=True)
+            vimeo_id = self._search_regex(
+                r'data-vimeo-id=["\'](\d+)', webpage, 'video id')
+            return self.url_result(
+                VimeoIE._smuggle_referrer(
+                    'https://player.vimeo.com/video/%s' % vimeo_id, url),
+                ie=VimeoIE.ie_key(), video_id=vimeo_id)
+
+        self.to_screen(
+            'Downloading playlist %s - add --no-playlist to just download video'
+            % course_id)
+
+        lesson_ids = [lesson_id]
+        for lesson in re.findall(
+                r'(<a[^>]+\bclass=["\']lesson-link[^>]+>)', webpage):
+            attrs = extract_attributes(lesson)
+            if not attrs:
+                continue
+            lesson_url = attrs.get('href')
+            if not lesson_url:
+                continue
+            lesson_id = self._search_regex(
+                r'/lessons/(\d+)', lesson_url, 'lesson id', default=None)
+            if not lesson_id:
+                continue
+            lesson_ids.append(lesson_id)
+
+        entries = []
+        for lesson_id in orderedSet(lesson_ids):
+            entries.append(self.url_result(
+                smuggle_url(urljoin(url, lesson_id), {'force_video': True}),
+                ie=RayWenderlichIE.ie_key()))
+
+        title = self._search_regex(
+            r'class=["\']course-title[^>]+>([^<]+)', webpage, 'course title',
+            default=None)
+
+        return self.playlist_result(entries, course_id, title)