Share WhatsApp Web without Scanning QR code using Python (original) (raw)

Last Updated : 20 Sep, 2022

Prerequisite: Selenium, Browser Automation Using Selenium

In this article, we are going to see how to share your Web-WhatsApp with anyone over the Internet without Scanning a QR code.

Web-Whatsapp store sessions

Web Whatsapp stores sessions in IndexedDB with the name wawc and syncs those key-value pairs to local storage. IndexedDB stores the data inside the user's browser and allows to create web application that can query from this indexedDB with or without a network connection.

How to get a session:

We can figure it out by trying the following. We will take help of chrome dev tool.

Steps:

  1. Clear cookies and refresh the page: It will remain login.
  2. Clear localStorage and refresh the page: It will restore the local Storage and remain logged in.
  3. Clear IndexedDB and refresh the page: It will restore the IndexedDB and remain logged in.
  4. Now clear both localStorage and IndexedDB: It will log out.

Steps demonstration:

Extract sessions from IndexedDB:

We can extract sessions from IndexedDB by using the following javascript.

JavaScript `

function getResultFromRequest(request) { return new Promise((resolve, reject) => { request.onsuccess = function (event) { resolve(request.result); }; }); }

async function getDB() { var request = window.indexedDB.open("wawc"); return await getResultFromRequest(request); }

async function readAllKeyValuePairs() { var db = await getDB(); var objectStore = db.transaction("user").objectStore("user"); var request = objectStore.getAll(); return await getResultFromRequest(request); }

session = await readAllKeyValuePairs(); console.log(session);

`

We can try to execute the above code in the browser's console or tab where we had opened Web-Whatsapp and we will see the output as follows containing session key-value pairs.

Now we get those key-value pairs as text by running the following line of code.

JavaScript `

JSON.stringify(session);

`

Now let's copy that text to a file to save a session and clear both localStorage and IndexedDB to log out. Now we can run the following code to inject a session by assigning the value of the session string we just copied to a file to variable SESSION_STRING. Then refresh the page and we will log in again without scanning the QR code.

JavaScript `

function getResultFromRequest(request) { return new Promise((resolve, reject) => { request.onsuccess = function(event) { resolve(request.result); }; }) }

async function getDB() { var request = window.indexedDB.open("wawc"); return await getResultFromRequest(request); }

async function injectSession(SESSION_STRING) { var session = JSON.parse(SESSION_STRING); var db = await getDB(); var objectStore = db.transaction("user", "readwrite").objectStore("user"); for(var keyValue of session) { var request = objectStore.put(keyValue); await getResultFromRequest(request); } }

var SESSION_STRING = ""; await injectSession(SESSION_STRING);

`

Automating the process of generating a session file and injecting a session:

We can automate the process of generating a session file that contains our session key-value pairs and also reading session key-value pairs from that generated session file to inject a session into the browser to open web-WhatsApp without scanning QR code

We can automate as follows:

Take the session file path as a command-line argument.

Generating session file:

Opening session file:

Below is the implementation:

Note: Please download chormedrive before running the code.

By using selenium's WebDriverWait, we can wait for some elements to be present on the browser as following:

Python3 `

def _wait_for_presence_of_an_element(browser, selector): element = None

try:
    element = WebDriverWait(browser, DEFAULT_WAIT).until(
        EC.presence_of_element_located(selector)
    )
except:
    pass
finally:
    return element

`

Generating session file:

Python3 `

def sessionGenerator(sessionFilePath):

# 1.1 Open Chrome browser
browser = webdriver.Chrome()

# 1.2 Open Web Whatsapp
browser.get("https://web.whatsapp.com/")

# 1.3 Ask user to scan QR code
print("Waiting for QR code scan...")

# 1.4 Wait for QR code to be scanned
_wait_for_presence_of_an_element(
  browser, MAIN_SEARCH_BAR__SEARCH_ICON)

# 1.5 Execute javascript in browser and 
# extract the session text
session = browser.execute_script(EXTRACT_SESSION)

# 1.6 Save file with session text file with
# custom file extension ".wa"
with open(sessionFilePath, "w", encoding="utf-8") as sessionFile:
    sessionFile.write(str(session))

print("Your session file is saved to: " + sessionFilePath)

# 1.7 Close the browser
browser.close()

`

Use the above methods for Generating session file:

Python3 `

from session import * import sys

Take session file path as command line

argument and passed to following method

sessionFilePath = sys.argv[1]

sessionGenerator(sessionFilePath)

`

Opening session file:

Python3 `

def sessionOpener(sessionFilePath):

# 2.1 Verify that session file is exist
if sessionFilePath == "":
    raise IOError('"' + sessionFilePath + '" is not exist.')

# 2.2 Read the given file into "session" variable
with open(sessionFilePath, "r", encoding="utf-8") as sessionFile:
    session = sessionFile.read()

# 2.3 Open Chrome browser
browser = webdriver.Chrome()

# 2.4 Open Web Whatsapp
browser.get("https://web.whatsapp.com/")

# 2.5 Wait for Web Whatsapp to be loaded properly
_wait_for_presence_of_an_element(browser, QR_CODE)

# 2.6 Execute javascript in browser to inject
# session by using variable "session"
print("Injecting session...")
browser.execute_script(INJECT_SESSION, session)

# 2.7 Refresh the page
browser.refresh()

# 2.8 Ask for user to enter any key to close browser
input("Press enter to close browser.")

`

Use the above methods for Opening session file:

Python3 `

from session import * import sys

Take session file path as command line

argument and passed to following method

sessionFilePath = sys.argv[1]

sessionOpener(sessionFilePath)

`

We can generate a session file by using the following command:

For Generating session file:

python session_generator.py session.wa

After generating the session file then share it with someone and put that session file in the same folder where session_opener.py is located and run the following command to open the Web Whatsapp without scanning the QR code

For Opening session file:

python session_opener.py session.wa

OR open PowerShell normally without going to the folder and give absolute paths as following

For Generating session file:

python E:\share-web-whatsapp\session_generator.py E:\share-web-whatsapp\session.wa

For Opening session file:

python E:\share-web-whatsapp\session_opener.py E:\share-web-whatsapp\session.wa