From a59381c364c4b7d057c8a6160b0952c823eea3a0 Mon Sep 17 00:00:00 2001
From: Vitaly Strizhenok <vstrizhenok@gmail.com>
Date: Tue, 30 Apr 2019 18:29:19 +0300
Subject: [PATCH] added CAUTH parameter for command line

---
 README.md               |  2 ++
 coursera/commandline.py | 10 +++++++++-
 coursera/coursera_dl.py |  5 ++++-
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index a0059f8..1d102be 100644
--- a/README.md
+++ b/README.md
@@ -280,6 +280,8 @@ class names, as well as any additional parameters:
 
     General:                     coursera-dl -u <user> -p <pass> modelthinking-004
 
+    With CAUTH parameter:	 coursera-dl -ca 'some-ca-value-from-browser' modelthinking-004
+
 If you don't want to type your password in command line as plain text, you can use the script without `-p` option. In this case you will be prompted for password  once the script is run.
 
     Without -p field:            coursera-dl -u <user> modelthinking-004
diff --git a/coursera/commandline.py b/coursera/commandline.py
index 9047b0a..2fd80d7 100644
--- a/coursera/commandline.py
+++ b/coursera/commandline.py
@@ -341,6 +341,14 @@ def parse_args(args=None):
     group_adv_auth = parser.add_argument_group(
         'Advanced authentication options')
 
+    group_adv_auth.add_argument(
+        '-ca',
+        '--cauth',
+        dest='cookies_cauth',
+        action='store',
+        default=None,
+        help='cauth cookie value from browser')
+
     group_adv_auth.add_argument(
         '-c',
         '--cookies_file',
@@ -492,7 +500,7 @@ def parse_args(args=None):
         logging.error('Cookies file not found: %s', args.cookies_file)
         sys.exit(1)
 
-    if not args.cookies_file:
+    if not args.cookies_file and not args.cookies_cauth:
         try:
             args.username, args.password = get_credentials(
                 username=args.username, password=args.password,
diff --git a/coursera/coursera_dl.py b/coursera/coursera_dl.py
index 8b7c204..64a48db 100644
--- a/coursera/coursera_dl.py
+++ b/coursera/coursera_dl.py
@@ -233,7 +233,10 @@ def main():
         return
 
     session = get_session()
-    login(session, args.username, args.password)
+    if args.cookies_cauth:
+        session.cookies.set('CAUTH', args.cookies_cauth)
+    else:
+        login(session, args.username, args.password)
     if args.specialization:
         args.class_names = expand_specializations(session, args.class_names)