import re
s = "https://w...content-available-to-author-only...n.com/1.js!! http://w...content-available-to-author-only...n.com/2.php; //some.site.com/3.js,"
res = re.findall(r'(?:\bhttps?:)?//\S*\.(?:js|php)\b', s)
print(res)
aW1wb3J0IHJlCnMgPSAiaHR0cHM6Ly93Li4uY29udGVudC1hdmFpbGFibGUtdG8tYXV0aG9yLW9ubHkuLi5uLmNvbS8xLmpzISEgaHR0cDovL3cuLi5jb250ZW50LWF2YWlsYWJsZS10by1hdXRob3Itb25seS4uLm4uY29tLzIucGhwOyAvL3NvbWUuc2l0ZS5jb20vMy5qcywiCnJlcyA9IHJlLmZpbmRhbGwocicoPzpcYmh0dHBzPzopPy8vXFMqXC4oPzpqc3xwaHApXGInLCBzKQpwcmludChyZXMp