- adding alura support

youtube_dl/extractor/alura.py

@@ -6,21 +6,15 @@ import re
 from .common import InfoExtractor
 
 from ..compat import (
-    compat_str,
     compat_urlparse,
 )
 
 from ..utils import (
-    dict_get,
-    ExtractorError,
-    float_or_none,
-    int_or_none,
-    parse_duration,
-    qualities,
-    srt_subtitles_timecode,
-    try_get,
-    update_url_query,
     urlencode_postdata,
+    urljoin,
+    int_or_none,
+    clean_html,
+    ExtractorError
 )
 
 
@@ -28,17 +22,26 @@ class AluraIE(InfoExtractor):
     _VALID_URL = r'https?://(?:cursos\.)?alura\.com\.br/course/(?P<course_name>[^/]+)/task/(?P<id>\d+)'
     _LOGIN_URL = 'https://cursos.alura.com.br/loginForm?urlAfterLogin=/loginForm'
     _VIDEO_URL = 'https://cursos.alura.com.br/course/%s/task/%s/video'
-    _TEST = {
-        'url': 'https://cursos.alura.com.br/course/design-patterns-python/task/9651',
-        'md5': 'TODO: md5 sum of the first 10241 bytes of the video file (use --test)',
+    _NETRC_MACHINE = 'alura'
+    _TESTS = [{
+        'url': 'https://cursos.alura.com.br/course/clojure-mutabilidade-com-atoms-e-refs/task/60095',
         'info_dict': {
-            'id': '9651',
+            'id': '60095',
             'ext': 'mp4',
-            'title': 'Video title goes here',
-            'thumbnail': r're:^https?://.*\.jpg$',
-            # TODO more properties, either as:
+            'title': 'Referências, ref-set e alter'
+            },
+            'skip': 'Requires alura account credentials',
+        },
+        {
+            # URL without video
+            'url': 'https://cursos.alura.com.br/course/clojure-mutabilidade-com-atoms-e-refs/task/60098',
+            'only_matching': True,
+        },
+        {
+            'url': 'https://cursos.alura.com.br/course/fundamentos-market-digital/task/55219',
+            'only_matching': True,
         }
-    }
+    ]
 
     def _real_extract(self, url):
 
@@ -50,9 +53,9 @@ class AluraIE(InfoExtractor):
 
         if video_dict:
             webpage = self._download_webpage(url, video_id)
-            video_title = self._search_regex(
+            video_title = clean_html(self._search_regex(
                 r'<span[^>]+class=(["\'])task-body-header-title-text\1[^>]*>(?P<title>[^<]+)',
-                webpage, 'title', group='title')
+                webpage, 'title', group='title'))
 
             formats = []
             for video_obj in video_dict:
@@ -60,9 +63,15 @@ class AluraIE(InfoExtractor):
                 video_format = self._extract_m3u8_formats(
                     video_url_m3u8, None, 'mp4', entry_protocol='m3u8_native',
                     m3u8_id='hls', fatal=False)
-
+                for f in video_format:
+                    m = re.search(r'^[\w \W]*-(?P<res>\w*).mp4[\W \w]*', f['url'])
+                    if m:
+                        if not f.get('height'):
+                            f['height'] = int('720' if m.group('res') == 'hd' else '480')
                 formats.extend(video_format)
 
+            self._sort_formats(formats, field_preference=('height', 'width', 'tbr', 'format_id'))
+
             return {
                 'id': video_id,
                 'title': video_title,
@@ -111,9 +120,55 @@ class AluraIE(InfoExtractor):
         if not post_url.startswith('http'):
             post_url = compat_urlparse.urljoin(self._LOGIN_URL, post_url)
 
-        self._download_webpage(
+        response = self._download_webpage(
             post_url, None, 'Logging in',
             data=urlencode_postdata(login_form),
             headers={'Content-Type': 'application/x-www-form-urlencoded'})
 
+        if not is_logged(response):
+            error = self._html_search_regex(
+                r'(?s)<p[^>]+class="alert-message[^"]*">(.+?)</p>',
+                response, 'error message', default=None)
+            if error:
+                raise ExtractorError('Unable to login: %s' % error, expected=True)
+            raise ExtractorError('Unable to log in')
+
+
+class AluraCourseIE(AluraIE):
+
+    _VALID_URL = r'https?://(?:cursos\.)?alura\.com\.br/course/(?P<id>[^/]+)'
+    _LOGIN_URL = 'https://cursos.alura.com.br/loginForm?urlAfterLogin=/loginForm'
+    _NETRC_MACHINE = 'aluracourse'
+    _TESTS = [{
+        'url': 'https://cursos.alura.com.br/course/clojure-mutabilidade-com-atoms-e-refs',
+        'only_matching': True,
+    }]
+
+    def _real_extract(self, url):
 
+        course_path = self._match_id(url)
+        webpage = self._download_webpage(url, course_path)
+
+        course_title = self._search_regex(
+            r'<h1.*?>(.*?)<strong>(?P<course_title>.*?)</strong></h[0-9]>', webpage,
+            'course title', default=course_path, group='course_title')
+
+        entries = []
+        if webpage:
+            for path in re.findall(r'<a\b(?=[^>]* class="[^"]*(?<=[" ])courseSectionList-section[" ])(?=[^>]* href="([^"]*))', webpage):
+                page_url = urljoin(url, path)
+                section_path = self._download_webpage(page_url, course_path)
+                for path_video in re.findall(r'<a\b(?=[^>]* class="[^"]*(?<=[" ])task-menu-nav-item-link-VIDEO[" ])(?=[^>]* href="([^"]*))', section_path):
+                    chapter = clean_html(self._search_regex(r'<h3[^>]+class=(["\'])task-menu-section-title-text\1[^>]*>(?P<chapter>[^<]+)',section_path, 'chapter', group='chapter'))
+                    chapter_number = int_or_none(self._search_regex(r'<span[^>]+class=(["\'])task-menu-section-title-number[^>]*>(.*?)<strong>(?P<chapter_number>[^<]+)</strong>',section_path, 'chapter number', group='chapter_number'))
+                    video_url = urljoin(url, path_video)
+                    entry = {
+                        '_type': 'url_transparent',
+                        'id': self._match_id(video_url),
+                        'url': video_url,
+                        'id_key': self.ie_key(),
+                        'chapter': chapter,
+                        'chapter_number': chapter_number
+                    }
+                    entries.append(entry)
+        return self.playlist_result(entries, course_path, course_title)

youtube_dl/extractor/extractors.py

@@ -36,7 +36,10 @@ from .afreecatv import AfreecaTVIE
 from .airmozilla import AirMozillaIE
 from .aljazeera import AlJazeeraIE
 from .alphaporno import AlphaPornoIE
-from .alura import AluraIE
+from .alura import (
+    AluraIE,
+    AluraCourseIE
+)
 from .amcnetworks import AMCNetworksIE
 from .americastestkitchen import AmericasTestKitchenIE
 from .animeondemand import AnimeOnDemandIE