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  1. import webapp2
  2. import re
  3.  
  4. USER_RE = re.compile(r"^[a-zA-Z0-9_-]{3,20}$")
  5. pass_re = re.compile(r"^.{3,20}$")
  6. email_re = re.compile(r"^[\S]+@[\S]+\.[\S]+$")
  7.  
  8. form="""
  9. 	<form method="post">
  10. 		<table>
  11. 			<label>
  12. 				Username :
  13. 				<input type="text" name="username" value="%(username)s">
  14. 				<font color="red">%(error_username)s</font>
  15. 			</label>
  16. 			<br>
  17. 			<label>
  18. 				Password :
  19. 				<input type="password" name="password">
  20. 				<font color="red">%(error_password)s</font>
  21. 			</label>
  22. 			<br>
  23. 			<label>	
  24. 			Verify Password :
  25. 			<input type="password" name="verify">
  26. 			<font color="red">%(match_error)s</font>
  27. 			</label>
  28. 			<br>
  29. 			<label>
  30. 				Email(optional) :
  31. 				<input type="text" name="email" value="%(email)s"> 
  32. 				<font color="red">%(email_error)s</font>
  33. 			<label>
  34. 			<br>
  35. 		</table>
  36. 		<input type="submit">
  37. 	</form>
  38. """
  39.  
  40. class MainHandler(webapp2.RequestHandler):
  41. 	def get(self):
  42. 		self.write_form()
  43.  
  44. 	def write_form(self,user="",error_user="",error_pass="",error_verify="",mail="",error_mail=""):
  45. 		self.response.out.write(form%{"username":user,
  46. 									  "error_username":error_user,
  47. 									  "error_password":error_pass,
  48. 									  "match_error":error_verify,
  49. 									  "email":mail,
  50. 									  "email_error":error_mail})
  51.  
  52.  
  53. 	def valid_username(self,user):
  54. 		return USER_RE.match(user)
  55.  
  56. 	def valid_password(self,password):
  57. 		return pass_re.match(password)
  58.  
  59. 	def valid_email(self,mail):
  60. 		if not mail:
  61. 			return True
  62. 		else:
  63. 			return email_re.match(mail)
  64.  
  65. 	def match(self,p,v):
  66. 		if p==v :
  67. 			return True
  68. 		return False
  69.  
  70. 	def post(self):
  71. 		user=self.request.get('username')
  72. 		pas=self.request.get('password')
  73. 		veri=self.request.get('verify')
  74. 		mail=self.request.get('email')
  75. 		username=self.valid_username(user)
  76. 		password=self.valid_password(pas)
  77. 		verify=self.match(veri,pas)
  78. 		email=self.valid_email(mail)
  79. 		if not username :
  80. 			error_user="That's not a valid username."
  81. 		else:
  82. 			error_user=""
  83. 		if not password :
  84. 			error_pass="That wasn't a valid password."
  85. 		else:
  86. 			error_pass=""
  87. 		if password and not verify:
  88. 			error_verify="Your passwords didn't match."
  89. 		else:
  90. 			error_verify=""
  91. 		if not email:
  92. 			error_mail="That's not a valid email."
  93. 		else:
  94. 			error_mail=""
  95.  
  96. 		if not(username) or not(email) or not(password) or not(verify):
  97. 			self.write_form(user,error_user,error_pass,error_verify,mail,error_mail)
  98. 		else:
  99. 			self.redirect('/welcome')
  100.  
  101. class welcomeHandler(webapp2.RequestHandler):
  102. 	def get(self):
  103. 		username=self.request.get('username')
  104. 		self.response.out.write("Welcome "+username)
  105.  
  106. app = webapp2.WSGIApplication([
  107. 	('/', MainHandler),('/welcome',welcomeHandler)], debug=True)
  108.  
Runtime error #stdin #stdout #stderr 0.01s 9008KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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Traceback (most recent call last):
  File "prog.py", line 1, in <module>
ImportError: No module named webapp2
https://ideone.com/HcQ1Op
language:
Python (cpython 2.7.16)
created:
10 years ago
visibility:
public

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