1 files changed, 142 insertions, 0 deletions
diff --git a/youtube_dl/extractor/lynda.py b/youtube_dl/extractor/lynda.py
new file mode 100644
index 000000000..844ba4dcb
--- /dev/null
+++ b/youtube_dl/extractor/lynda.py
@@ -0,0 +1,142 @@
+from __future__ import unicode_literals
+
+import re
+import json
+
+from .subtitles import SubtitlesInfoExtractor
+from .common import InfoExtractor
+from ..utils import ExtractorError
+
+
+class LyndaIE(SubtitlesInfoExtractor):
+    IE_NAME = 'lynda'
+    IE_DESC = 'lynda.com videos'
+    _VALID_URL = r'https?://www\.lynda\.com/[^/]+/[^/]+/\d+/(\d+)-\d\.html'
+
+    _TEST = {
+        'url': 'http://www.lynda.com/Bootstrap-tutorials/Using-exercise-files/110885/114408-4.html',
+        'file': '114408.mp4',
+        'md5': 'ecfc6862da89489161fb9cd5f5a6fac1',
+        u"info_dict": {
+            'title': 'Using the exercise files',
+            'duration': 68
+        }
+    }
+    
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        video_id = mobj.group(1)
+
+        page = self._download_webpage('http://www.lynda.com/ajax/player?videoId=%s&type=video' % video_id,
+                                      video_id, 'Downloading video JSON')
+        video_json = json.loads(page)
+
+        if 'Status' in video_json and video_json['Status'] == 'NotFound':
+            raise ExtractorError('Video %s does not exist' % video_id, expected=True)
+
+        if video_json['HasAccess'] is False:
+            raise ExtractorError('Video %s is only available for members' % video_id, expected=True)
+
+        video_id = video_json['ID']
+        duration = video_json['DurationInSeconds']
+        title = video_json['Title']
+
+        formats = [{'url': fmt['Url'],
+                    'ext': fmt['Extension'],
+                    'width': fmt['Width'],
+                    'height': fmt['Height'],
+                    'filesize': fmt['FileSize'],
+                    'format_id': str(fmt['Resolution'])
+                    } for fmt in video_json['Formats']]
+
+        self._sort_formats(formats)
+        
+        if self._downloader.params.get('listsubtitles', False):
+            self._list_available_subtitles(video_id, page)
+            return
+        
+        subtitles = self._fix_subtitles(self.extract_subtitles(video_id, page))
+        
+        return {
+            'id': video_id,
+            'title': title,
+            'duration': duration,
+            'subtitles': subtitles,
+            'formats': formats
+        }
+        
+    _TIMECODE_REGEX = r'\[(?P<timecode>\d+:\d+:\d+[\.,]\d+)\]'    
+    
+    def _fix_subtitles(self, subtitles):
+        fixed_subtitles = {}
+        for k, v in subtitles.items():
+            subs = json.loads(v)
+            if len(subs) == 0:
+                continue
+            srt = ''
+            for pos in range(0, len(subs) - 1):
+                seq_current = subs[pos]                
+                m_current = re.match(self._TIMECODE_REGEX, seq_current['Timecode'])
+                if m_current is None:
+                    continue                
+                seq_next = subs[pos+1]
+                m_next = re.match(self._TIMECODE_REGEX, seq_next['Timecode'])
+                if m_next is None:
+                    continue                
+                appear_time = m_current.group('timecode')
+                disappear_time = m_next.group('timecode')
+                text = seq_current['Caption']
+                srt += '%s\r\n%s --> %s\r\n%s' % (str(pos), appear_time, disappear_time, text)
+            if srt:
+                fixed_subtitles[k] = srt
+        return fixed_subtitles
+        
+    def _get_available_subtitles(self, video_id, webpage):
+        url = 'http://www.lynda.com/ajax/player?videoId=%s&type=transcript' % video_id
+        sub = self._download_webpage(url, None, note=False)
+        sub_json = json.loads(sub)
+        return {'en': url} if len(sub_json) > 0 else {}
+
+
+class LyndaCourseIE(InfoExtractor):
+    IE_NAME = 'lynda:course'
+    IE_DESC = 'lynda.com online courses'
+
+    # Course link equals to welcome/introduction video link of same course
+    # We will recognize it as course link
+    _VALID_URL = r'https?://(?:www|m)\.lynda\.com/(?P<coursepath>[^/]+/[^/]+/(?P<courseid>\d+))-\d\.html'
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        course_path = mobj.group('coursepath')
+        course_id = mobj.group('courseid')
+
+        page = self._download_webpage('http://www.lynda.com/ajax/player?courseId=%s&type=course' % course_id,
+                                      course_id, 'Downloading course JSON')
+        course_json = json.loads(page)
+
+        if 'Status' in course_json and course_json['Status'] == 'NotFound':
+            raise ExtractorError('Course %s does not exist' % course_id, expected=True)
+
+        unaccessible_videos = 0
+        videos = []
+
+        for chapter in course_json['Chapters']:
+            for video in chapter['Videos']:
+                if video['HasAccess'] is not True:
+                    unaccessible_videos += 1
+                    continue
+                videos.append(video['ID'])
+
+        if unaccessible_videos > 0:
+            self._downloader.report_warning('%s videos are only available for members and will not be downloaded' % unaccessible_videos)
+
+        entries = [
+            self.url_result('http://www.lynda.com/%s/%s-4.html' %
+                            (course_path, video_id),
+                            'Lynda')
+            for video_id in videos]
+
+        course_title = course_json['Title']
+
+        return self.playlist_result(entries, course_id, course_title)