Source Code for Module django.contrib.auth.forms

  1  from django.contrib.auth.models import User 
  2  from django.contrib.auth import authenticate 
  3  from django.contrib.sites.models import Site 
  4  from django.template import Context, loader 
  5  from django.core import validators 
  6  from django import oldforms 
  7  from django.utils.translation import ugettext as _ 
  8   
  9 -class UserCreationForm(oldforms.Manipulator): 
 10      "A form that creates a user, with no privileges, from the given username and password." 
 11 -    def __init__(self): 
 12          self.fields = ( 
 13              oldforms.TextField(field_name='username', length=30, max_length=30, is_required=True, 
 14                  validator_list=[validators.isAlphaNumeric, self.isValidUsername]), 
 15              oldforms.PasswordField(field_name='password1', length=30, max_length=60, is_required=True), 
 16              oldforms.PasswordField(field_name='password2', length=30, max_length=60, is_required=True, 
 17                  validator_list=[validators.AlwaysMatchesOtherField('password1', _("The two password fields didn't match."))]), 
 18          ) 
 19   
 20 -    def isValidUsername(self, field_data, all_data): 
 21          try: 
 22              User.objects.get(username=field_data) 
 23          except User.DoesNotExist: 
 24              return 
 25          raise validators.ValidationError, _('A user with that username already exists.') 
 26   
 27 -    def save(self, new_data): 
 28          "Creates the user." 
 29          return User.objects.create_user(new_data['username'], '', new_data['password1']) 
 30   
 31 -class AuthenticationForm(oldforms.Manipulator): 
 32      """ 
 33      Base class for authenticating users. Extend this to get a form that accepts 
 34      username/password logins. 
 35      """ 
 36 -    def __init__(self, request=None): 
 37          """ 
 38          If request is passed in, the manipulator will validate that cookies are 
 39          enabled. Note that the request (a HttpRequest object) must have set a 
 40          cookie with the key TEST_COOKIE_NAME and value TEST_COOKIE_VALUE before 
 41          running this validator. 
 42          """ 
 43          self.request = request 
 44          self.fields = [ 
 45              oldforms.TextField(field_name="username", length=15, max_length=30, is_required=True, 
 46                  validator_list=[self.isValidUser, self.hasCookiesEnabled]), 
 47              oldforms.PasswordField(field_name="password", length=15, max_length=30, is_required=True), 
 48          ] 
 49          self.user_cache = None 
 50   
 51 -    def hasCookiesEnabled(self, field_data, all_data): 
 52          if self.request and not self.request.session.test_cookie_worked(): 
 53              raise validators.ValidationError, _("Your Web browser doesn't appear to have cookies enabled. Cookies are required for logging in.") 
 54   
 55 -    def isValidUser(self, field_data, all_data): 
 56          username = field_data 
 57          password = all_data.get('password', None) 
 58          self.user_cache = authenticate(username=username, password=password) 
 59          if self.user_cache is None: 
 60              raise validators.ValidationError, _("Please enter a correct username and password. Note that both fields are case-sensitive.") 
 61          elif not self.user_cache.is_active: 
 62              raise validators.ValidationError, _("This account is inactive.") 
 63   
 64 -    def get_user_id(self): 
 65          if self.user_cache: 
 66              return self.user_cache.id 
 67          return None 
 68   
 69 -    def get_user(self): 
 70          return self.user_cache 
 71   
 72 -class PasswordResetForm(oldforms.Manipulator): 
 73      "A form that lets a user request a password reset" 
 74 -    def __init__(self): 
 75          self.fields = ( 
 76              oldforms.EmailField(field_name="email", length=40, is_required=True, 
 77                  validator_list=[self.isValidUserEmail]), 
 78          ) 
 79   
 80 -    def isValidUserEmail(self, new_data, all_data): 
 81          "Validates that a user exists with the given e-mail address" 
 82          self.users_cache = list(User.objects.filter(email__iexact=new_data)) 
 83          if len(self.users_cache) == 0: 
 84              raise validators.ValidationError, _("That e-mail address doesn't have an associated user account. Are you sure you've registered?") 
 85   
 86 -    def save(self, domain_override=None, email_template_name='registration/password_reset_email.html'): 
 87          "Calculates a new password randomly and sends it to the user" 
 88          from django.core.mail import send_mail 
 89          for user in self.users_cache: 
 90              new_pass = User.objects.make_random_password() 
 91              user.set_password(new_pass) 
 92              user.save() 
 93              if not domain_override: 
 94                  current_site = Site.objects.get_current() 
 95                  site_name = current_site.name 
 96                  domain = current_site.domain 
 97              else: 
 98                  site_name = domain = domain_override 
 99              t = loader.get_template(email_template_name) 
100              c = { 
101                  'new_password': new_pass, 
102                  'email': user.email, 
103                  'domain': domain, 
104                  'site_name': site_name, 
105                  'user': user, 
106                  } 
107              send_mail(_('Password reset on %s') % site_name, t.render(Context(c)), None, [user.email]) 
108   
109 -class PasswordChangeForm(oldforms.Manipulator): 
110      "A form that lets a user change his password." 
111 -    def __init__(self, user): 
112          self.user = user 
113          self.fields = ( 
114              oldforms.PasswordField(field_name="old_password", length=30, max_length=30, is_required=True, 
115                  validator_list=[self.isValidOldPassword]), 
116              oldforms.PasswordField(field_name="new_password1", length=30, max_length=30, is_required=True, 
117                  validator_list=[validators.AlwaysMatchesOtherField('new_password2', _("The two 'new password' fields didn't match."))]), 
118              oldforms.PasswordField(field_name="new_password2", length=30, max_length=30, is_required=True), 
119          ) 
120   
121 -    def isValidOldPassword(self, new_data, all_data): 
122          "Validates that the old_password field is correct." 
123          if not self.user.check_password(new_data): 
124              raise validators.ValidationError, _("Your old password was entered incorrectly. Please enter it again.") 
125   
126 -    def save(self, new_data): 
127          "Saves the new password." 
128          self.user.set_password(new_data['new_password1']) 
129          self.user.save() 
130   
131 -class AdminPasswordChangeForm(oldforms.Manipulator): 
132      "A form used to change the password of a user in the admin interface." 
133 -    def __init__(self, user): 
134          self.user = user 
135          self.fields = ( 
136              oldforms.PasswordField(field_name='password1', length=30, max_length=60, is_required=True), 
137              oldforms.PasswordField(field_name='password2', length=30, max_length=60, is_required=True, 
138                  validator_list=[validators.AlwaysMatchesOtherField('password1', _("The two password fields didn't match."))]), 
139          ) 
140   
141 -    def save(self, new_data): 
142          "Saves the new password." 
143          self.user.set_password(new_data['password1']) 
144          self.user.save() 
145