[POSTFIX] refactoring

README.md

@@ -1,29 +1,30 @@
 # FAU-TV Video Downloader
 
 Downloads all videos of a given course (even if the download has been restricted) to a local folder.
-This software is provided without warranty. Usage is discouraged! Usage of this software is at your own risk!
+This software is provided without warranty. Usage is discouraged! Use this software at your own risk!
 
 ## Usage
 
 ```bash
-usage: dl.py [-h] [--out-dir OUT_DIR] [--starter=url STARTER=URL] [--start-at START_AT] [--auth-token AUTH_TOKEN]
+usage: dl.py [-h] [--out-dir OUT_DIR] [--starter-url STARTER_URL] [--start-at START_AT] [--auth-token AUTH_TOKEN]
-             [--session-id SESSION_ID] [--session-ci SESSION_CI]
+             [--session-id SESSION_ID] [--session-ci SESSION_CI] [--no-auth]
-             course-id
+             course_id
 
 Download clips from a course
 
 positional arguments:
-  course-id             Course ID
+  course_id             Course ID
 
 options:
   -h, --help            show this help message and exit
   --out-dir OUT_DIR     Output directory
-  --starter=url STARTER=URL
+  --starter-url STARTER_URL
                         Starter URL
   --start-at START_AT   Skip all previous indices (defaults to 1)
   --auth-token AUTH_TOKEN
   --session-id SESSION_ID
   --session-ci SESSION_CI
+  --no-auth
 ```
 
 ## Procedure

dl.py

@@ -8,10 +8,10 @@ def parse_args():
         description='Download clips from a course',
     )
 
-    parser.add_argument('course-id', type=str, help='Course ID')
+    parser.add_argument('course_id', type=str, help='Course ID')
     parser.add_argument('--out-dir', type=str,
                         help='Output directory', default='./out')
-    parser.add_argument('--starter=url', type=str,
+    parser.add_argument('--starter-url', type=str,
                         help='Starter URL', default="https://www.fau.tv/auth/sso")
     parser.add_argument('--start-at', type=int,
                         help='Skip all previous indices (defaults to 1)', default=1)
@@ -20,24 +20,26 @@ def parse_args():
     parser.add_argument('--session-id', type=str)
     parser.add_argument('--session-ci', type=str)
 
+    parser.add_argument('--no-auth', action='store_true')
+
     return parser.parse_args()
 
 
 def main():
     args = parse_args()
 
-    if args.authToken and args.sessionID and args.sessionCI:
+    if not args.no_auth and args.auth_token and args.session_id and args.session_ci:
-        set_token(args.authToken, args.sessionID, args.sessionCI)
+        set_token(args.auth_token, args.session_id, args.session_ci)
-    else:
+    elif not args.no_auth:
-        load_token(args.starterUrl)
+        load_token(args.starter_url)
 
-    os.makedirs(args.outDir, exist_ok=True)
+    os.makedirs(args.out_dir, exist_ok=True)
 
-    for index, clip_id in enumerate(get_course_clip_ids(args.courseId)):
+    for index, clip_id in enumerate(get_course_clip_ids(args.course_id)):
-        if index < args.startAt - 1:
+        if index < args.start_at - 1:
             continue
 
-        download_clip(clip_id, f'{args.outDir}/{index+1: 04d}_{clip_id}.mp4')
+        download_clip(clip_id, f'{args.out_dir}/{index+1: 04d}_{clip_id}.mp4')
 
 
 if __name__ == '__main__':

lib.py

@@ -9,6 +9,12 @@ import shutil
 _token: "Token" = None
 
 
+def _cookies() -> dict[str, str]:
+    if _token is None:
+        return {}
+    return _token.cookies()
+
+
 @dataclass
 class Token():
     auth_token: str
@@ -95,7 +101,7 @@ def get_course_clip_ids(course_id: str) -> list[str]:
     urls = []
 
     url = f'https://www.fau.tv/course/id/{course_id}'
-    with requests.get(url, cookies=_token.cookies()) as r:
+    with requests.get(url, cookies=_cookies()) as r:
         clip_matches = regex.findall(r.text)
         for match in clip_matches:
             urls.append(match[1])
@@ -109,7 +115,7 @@ def get_clip_details(clip_id: str) -> ClipDetails:
     url = f'https://www.fau.tv/clip/id/{clip_id}'
     details = ClipDetails(clip_id=clip_id)
 
-    with requests.get(url, cookies=_token.cookies()) as r:
+    with requests.get(url, cookies=_cookies()) as r:
         def get_details(keyword: str):
             mediaid_re = re.compile(
                 r'(' + keyword + r'Sources[^,]*,\s+mediaid\:\s+\")([0-9]+)'
@@ -141,7 +147,7 @@ def download_media(media_id: str, outfile_path: str):
     url = f'https://itunes.video.uni-erlangen.de/get/file/' + \
         str(media_id) + '?download=1'
 
-    with requests.get(url, stream=True, cookies=_token.cookies()) as r:
+    with requests.get(url, stream=True, cookies=_cookies()) as r:
         if (r.status_code != 200):
             return False