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# SPDX-License-Identifier: AGPL-3.0-or-later
"""
Django form for configuring Gitweb.
"""
import re
from urllib.parse import urlparse
from django import forms
from django.core.exceptions import ValidationError
from django.core.validators import URLValidator
from django.utils.translation import gettext_lazy as _
from plinth.modules import gitweb
from . import privileged
def _get_branches(repo):
"""Get all the branches in the repository."""
branch_data = privileged.get_branches(repo)
default_branch = branch_data['default_branch']
branches = branch_data['branches']
if default_branch not in branches:
branches.insert(0, default_branch)
return [(branch, branch) for branch in branches]
def get_name_from_url(url):
"""Get a repository name from URL"""
return urlparse(url).path.split('/')[-1]
def is_repo_url(url):
"""Check if URL is valid."""
try:
RepositoryValidator(input_should_be='url')(url)
except ValidationError:
return False
return True
class RepositoryValidator:
input_should_be = 'name'
def __init__(self, input_should_be=None):
if input_should_be is not None:
self.input_should_be = input_should_be
def __call__(self, value):
"""Validate that the input is a correct repository name or URL"""
if self.input_should_be in ('url', 'url_or_name'):
try:
URLValidator(schemes=['http', 'https'],
message=_('Invalid repository URL.'))(value)
except ValidationError:
if self.input_should_be == 'url':
raise
else:
value = get_name_from_url(value)
if (not re.match(r'^[a-zA-Z0-9-._]+$', value)) \
or value.startswith(('-', '.')) \
or value.endswith('.git.git'):
raise ValidationError(_('Invalid repository name.'), 'invalid')
class CreateRepoForm(forms.Form):
"""Form to create and edit a new repository."""
name = forms.CharField(
label=_(
'Name of a new repository or URL to import an existing repository.'
), strip=True,
validators=[RepositoryValidator(input_should_be='url_or_name')],
widget=forms.TextInput(attrs={'autocomplete': 'off'}))
description = forms.CharField(
label=_('Description of the repository'), strip=True, required=False,
help_text=_('Optional, for displaying on Gitweb.'))
owner = forms.CharField(label=_('Repository\'s owner name'), strip=True,
required=False,
help_text=_('Optional, for displaying on Gitweb.'))
is_private = forms.BooleanField(
label=_('Private repository'), required=False,
help_text=_('Allow only authorized users to access this repository.'))
def __init__(self, *args, **kwargs):
"""Initialize the form with extra request argument."""
super().__init__(*args, **kwargs)
self.fields['name'].widget.attrs.update({'autofocus': 'autofocus'})
def clean_name(self):
"""Check if the name is valid."""
name = self.cleaned_data['name']
repo_name = name
if is_repo_url(name):
repo_name = get_name_from_url(name)
if repo_name.endswith('.git'):
repo_name = repo_name[:-4]
for repo in gitweb.get_repo_list():
if repo_name == repo['name']:
raise ValidationError(
_('A repository with this name already exists.'))
if is_repo_url(name):
if not privileged.repo_exists(name):
raise ValidationError('Remote repository is not available.')
return name
class EditRepoForm(CreateRepoForm):
"""Form to create and edit a new repository."""
name = forms.CharField(
label=_('Name of the repository'),
strip=True,
validators=[RepositoryValidator()],
help_text=_(
'An alpha-numeric string that uniquely identifies a repository.'),
)
default_branch = forms.ChoiceField(
label=_('Default branch'),
help_text=_('Gitweb displays this as a default branch.'))
def __init__(self, *args, **kwargs):
"""Initialize the form with extra request argument."""
super().__init__(*args, **kwargs)
branches = _get_branches(self.initial['name'])
self.fields['default_branch'].choices = branches
def clean_name(self):
"""Check if the name is valid."""
name = self.cleaned_data['name']
if 'name' in self.initial and name == self.initial['name']:
return name
if name.endswith('.git'):
name = name[:-4]
for repo in gitweb.get_repo_list():
if name == repo['name']:
raise ValidationError(
_('A repository with this name already exists.'))
return name
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