View all Safari cookies on an OS X system

If you run the script with no arguments given to it on the command line, you will see the following message regarding usage of the script:

$ python BinaryCookieReader.py

Usage: Python BinaryCookieReader.py [Full path to Cookies.binarycookies file] 

Example: Python BinaryCookieReader.py C:\Cookies.binarycookies
$

To view the cookies stored by Safari on an OS X system, you can use the command

python BinaryCookieReader.py 
~/Library/Cookies/Cookies.binarycookies

. When I ran the command on a MacBook Pro laptop, I saw details for a long list of cookies, some of which are shown below:

$ python BinaryCookieReader.py ~/Library/Cookies/Cookies.binarycookies
#*************************************************************************#
# BinaryCookieReader: developed by Satishb3: http://www.securitylearn.net #
#*************************************************************************#
Cookie : WMF-Last-Access=01-Jul-2016; domain=www.wikipedia.org; path=/; expires=
Tue, 02 Aug 2016; Secure; HttpOnly
Cookie : DSID=ADyxuktRDWVUhSyKFh_6YKD1DQDp7uQgOaj-ZHRJpB9Q9wQkf2PJ41wfDp-OCo7TTZ
44Cn-EgGjDgDX698pX7PtRGDzfilM_532VqrHwSBZKlXoSMC7UVxo; domain=.doubleclick.net; 
path=/; expires=Wed, 13 Jul 2016; HttpOnly
Cookie : FLC=CMH0JBD2mZ8_GNv_pZEBKK3kbDDoiNu7AQ; domain=.doubleclick.net; path=/
; expires=Fri, 01 Jul 2016; 
Cookie : id=22a355925a080057||t=1467168875|et=730|cs=002213fd48818175d2d85aea1f;
 domain=.doubleclick.net; path=/; expires=Fri, 29 Jun 2018; 
Cookie : IDE=AHWqTUmv9KBdHpYX49KJqNzQ9cVuEYbYmpZ9joD_yaslBVTEou4wL6A1XB; domain=
.doubleclick.net; path=/; expires=Fri, 29 Jun 2018; HttpOnly
Cookie : __gads=ID=d3e07f9e0e03ae29:T=1466956034:S=ALNI_MbaiEoRM_RyC5OauKUBIeoJe
-rOnw; domain=.w3schools.com; path=/; expires=Tue, 26 Jun 2018;

If I just want to see the domain names for all of the cokies stored by Safari, I can pipe the output through grep to extract the "domain=" portion of a cookie's entry, e.g., domain=.doubleclick.net;, then pipe the output of the grep command into cut to eliminate the "domain=" portion of the lines by using the equals sign as a delimiter, then use cut again to eliminate the semicolon at the end of each line and then use sed to eliminate the period at the beginning of some lines, such as .w3schools.com. I can then pipe that output into sort to sort the results alphabetically and then pipe the output into uniq to eliminate duplicate entries associated with a domain storing multiple cookies and entries where the domain name appears with and without a leading period, e.g. .arstechnica.com and arstechnica.com.

$ python BinaryCookieReader.py ~/Library/Cookies/Cookies.binarycookies | grep -E -o "domain=.*?;" |  cut -d"=" -f2 | cut -d";" -f1 | sed 's/^\.//' | sort | uniq
^filecookies^
accounts.google.com
accounts.justia.com
ads.linkedin.com
akamai.com
allstate.com
amazon.com
apple.com
appsliced.co
arstechnica.com
atdmt.com
att.com
<text snipped>
www.w3schools.com
www.weonlydo.com
www.whatismyip.com
www.wikipedia.org
yelp.com
youtube.com
zemanta.com

The atdmt entry represents a tracking cookie associated with the Facebook subsidiary Atlas Solutions; the cookie originates from the domain atdmt.com, but is used as a third-party cookie by several other websites.

The script will allow you to view all cookies stored by Safari. If, instead, you just want to see the cookies stored while visiting a particular webpage, you can, with the web page open in a Safari tab, take the steps listed in Viewing cookies stored by a web page in Safari.