How to pass a variable with href url?

Question

Below is my code to send email using flask in python.

def sendPasswordResetLink(email, token):
    message = Message()
    message.subject = "Reset your password"
    message.sender = "********@gmail.com"
    message.recipients = email.split()
    message.html = '<p>Hello there,</p>\n' \
                   '<p>Please click on the below link to reset your password</p>\n' \
                   '<a href=http://localhost:5002/resetpassword.html?token= +token+>'
    mail.send(message)

Something is wrong in <a href.... line. It is not printing anything in the mail which I am getting. Im using flask-mail extenstion. Can someone give me a quick fix for this. As i said im using flask-mail extension which provides provides a simple interface to set up SMTP with our Flask application and to send messages from our views and scripts.

expected behavior - It should send a mail to my gmail with subject "Reset your password" and in mail body I should get Hello there, Please click on the below link to reset your password. http://localhost:5002/resetpassword.html?token=2

token is a parameter which im sending along with function definition. It contains the userid of the one who requests for the reset password. But the URL is not getting printed in mail which Im getting.

So something's wrong? Cool.. Mind telling us what it is? :) (And while you're at it, what is `mail` as it's never defined, did you mean to write `email.send(...)`, guessing not but still, it's undefined? — Torxed, May 21 '20 at 17:05
Sorry, Actually I had explained the issue I don't know why only remaining part is cropped. "Something is wrong in this was my explanation. mail is not defined but I am using flask-mail extension so I think it will be there by default. — Sushma, May 21 '20 at 17:13
Ah, because stackoverflow allows you to create HTML tags (like `
` for line breaks etc). There for, it assumed it would find `>` some where down the line since you started the ` — Torxed, May 21 '20 at 17:15
Oh okay, I think I edited it now. But if you know the solution for the question can you please help. — Sushma, May 21 '20 at 17:16
Short answer: Nope. Because I don't know what you mean by *"not printing anything in the mail"*, what does it look like and what's the expected behavior? And what is `mail`? I'm guessing it's something to do with how flask sends e-mails but again, no idea what you're receiving. — Torxed, May 21 '20 at 17:18
Im just getting Hello there, Please click on the below link to reset your password — Sushma, May 21 '20 at 17:29
Ah, but not the link part? Is that's what you're trying to say? Because you said "I would like to get 'please click the link' but i'm getting 'please click the link'" :P — Torxed, May 21 '20 at 17:33
http://localhost:5002/resetpassword.html?token=2 this link im not getting, this is what i mean — Sushma, May 21 '20 at 17:38
Did you mean to write ``? And you mean you get the link, but not the `token` part? — Torxed, May 21 '20 at 17:41
i tried writing it in the way you said but still im not getting the expected result. no not just token part, whole url only is not getting displayed — Sushma, May 21 '20 at 17:47

score 1 · Accepted Answer · answered May 21 '20 at 17:51

def sendPasswordResetLink(email, token):
    message = Message()
    message.subject = "Reset your password"
    message.sender = "********@gmail.com"
    message.recipients = email.split()
    message.html = '<p>Hello there,</p>\n' \
                   '<p>Please click on the below link to reset your password</p>\n' \
                   '<a href="http://localhost:5002/resetpassword.html?token=' + token + '">Some message here</a>'
    mail.send(message)

Your problem is that you don't escape the '...' string and thus never add token into the mix. But you're also not ending the <a> tag with a </a>. And there for there's no message. Here's some examples.

How to pass a variable with href url?

1 Answers1