mirror of https://gitlab.com/bashrc2/epicyon
220 lines
8.3 KiB
Python
220 lines
8.3 KiB
Python
__filename__ = "webapp_login.py"
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__author__ = "Bob Mottram"
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__license__ = "AGPL3+"
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__version__ = "1.3.0"
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__maintainer__ = "Bob Mottram"
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__email__ = "bob@libreserver.org"
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__status__ = "Production"
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__module_group__ = "Web Interface"
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import os
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import time
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import filecmp
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from shutil import copyfile
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from utils import get_image_extensions
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from utils import get_config_param
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from utils import no_of_accounts
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from utils import get_nickname_validation_pattern
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from webapp_utils import set_custom_background
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from webapp_utils import html_header_with_website_markup
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from webapp_utils import html_footer
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from webapp_utils import html_keyboard_navigation
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from webapp_utils import text_mode_browser
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from theme import get_text_mode_logo
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def html_get_login_credentials(login_params: str,
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last_login_time: int,
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domain: str) -> (str, str, bool):
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"""Receives login credentials via HTTPServer POST
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"""
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if not login_params.startswith('username='):
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if '&username=' not in login_params:
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return None, None, None
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# minimum time between login attempts
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curr_time = int(time.time())
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if curr_time < last_login_time + 10:
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return None, None, None
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if '&' not in login_params:
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return None, None, None
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login_args = login_params.split('&')
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nickname = None
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password = None
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register = False
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for arg in login_args:
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if '=' not in arg:
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continue
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if arg.split('=', 1)[0] == 'username':
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nickname = arg.split('=', 1)[1]
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if nickname.startswith('@'):
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nickname = nickname[1:]
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if '@' in nickname:
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# the full nickname@domain has been entered
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nickname = nickname.split('@')[0]
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elif arg.split('=', 1)[0] == 'password':
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password = arg.split('=', 1)[1]
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elif arg.split('=', 1)[0] == 'register':
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register = True
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return nickname, password, register
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def html_login(translate: {},
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base_dir: str,
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http_prefix: str, domain: str,
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system_language: str,
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autocomplete: bool,
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ua_str: str,
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theme_name: str) -> str:
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"""Shows the login screen
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"""
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accounts = no_of_accounts(base_dir)
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extensions = get_image_extensions()
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login_image_filename = None
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# does a login image exist for the current theme?
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for ext in extensions:
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login_image = 'login.' + ext
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theme_image = \
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base_dir + '/theme/' + theme_name + \
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'/' + login_image
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if os.path.isfile(theme_image):
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login_image_filename = \
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base_dir + '/accounts/' + login_image
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if os.path.isfile(login_image_filename):
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if not filecmp.cmp(theme_image,
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login_image_filename):
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copyfile(theme_image, login_image_filename)
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else:
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copyfile(theme_image, login_image_filename)
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break
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# does a custom login image exist?
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if not login_image_filename:
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for ext in extensions:
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login_image = 'login.' + ext
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image_filename = base_dir + '/accounts/' + login_image
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if os.path.isfile(image_filename):
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login_image_filename = image_filename
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break
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# no login image found, so use the default
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if not login_image_filename:
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login_image = 'login.png'
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login_image_filename = base_dir + '/accounts/' + login_image
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source_image = base_dir + '/img/login.png'
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copyfile(source_image, login_image_filename)
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text_mode_logo = get_text_mode_logo(base_dir)
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text_mode_logo_html = html_keyboard_navigation(text_mode_logo, {}, {})
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set_custom_background(base_dir, 'login-background-custom',
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'login-background')
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if accounts > 0:
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login_text = \
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'<p class="login-text">' + \
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translate['Welcome. Please enter your login details below.'] + \
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'</p>'
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else:
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login_text = \
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'<p class="login-text">' + \
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translate['Please enter some credentials'] + '</p>' + \
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'<p class="login-text">' + \
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translate['You will become the admin of this site.'] + \
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'</p>'
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if os.path.isfile(base_dir + '/accounts/login.txt'):
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# custom login message
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with open(base_dir + '/accounts/login.txt', 'r',
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encoding='utf-8') as file:
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login_text = '<p class="login-text">' + file.read() + '</p>'
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css_filename = base_dir + '/epicyon-login.css'
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if os.path.isfile(base_dir + '/login.css'):
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css_filename = base_dir + '/login.css'
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# show the register button
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register_button_str = ''
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if get_config_param(base_dir, 'registration') == 'open':
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remaining = 0
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if get_config_param(base_dir, 'registrationsRemaining'):
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remaining = get_config_param(base_dir, 'registrationsRemaining')
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if isinstance(remaining, str):
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remaining = int(remaining)
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if remaining > 0:
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if accounts > 0:
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idx = 'Welcome. Please login or register a new account.'
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login_text = \
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'<p class="login-text">' + \
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translate[idx] + \
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'</p>'
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register_button_str = \
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'<button type="submit" name="register" tabindex="1">' + \
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translate['Register'] + '</button>'
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tos_str = \
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'<p class="login-text"><a href="/about" tabindex="2">' + \
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translate['About this Instance'] + '</a></p>' + \
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'<p class="login-text"><a href="/terms" tabindex="2">' + \
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translate['Terms of Service'] + '</a></p>'
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login_button_str = ''
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if accounts > 0:
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login_button_str = \
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'<button type="submit" name="submit" tabindex="1">' + \
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translate['Login'] + '</button>'
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autocomplete_nickname_str = 'autocomplete="username"'
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autocomplete_password_str = 'autocomplete="current-password"'
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if not autocomplete:
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autocomplete_nickname_str = 'autocomplete="username" value=""'
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autocomplete_password_str = 'autocomplete="off" value=""'
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instance_title = \
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get_config_param(base_dir, 'instanceTitle')
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login_form = \
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html_header_with_website_markup(css_filename, instance_title,
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http_prefix, domain,
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system_language)
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nickname_pattern = get_nickname_validation_pattern()
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instance_title = get_config_param(base_dir, 'instanceTitle')
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login_form += \
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'<br>\n' + \
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'<form method="POST" action="/login">\n' + \
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' <div class="imgcontainer">\n' + \
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text_mode_logo_html + '\n' + \
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' <img loading="lazy" decoding="async" src="' + login_image + \
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'" alt="' + instance_title + '" class="loginimage">\n' + \
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login_text + tos_str + '\n' + \
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' </div>\n' + \
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'\n' + \
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' <div class="container">\n' + \
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' <label for="nickname"><b>' + \
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translate['Nickname'] + '</b></label>\n' + \
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' <input type="text" ' + autocomplete_nickname_str + \
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' placeholder="' + translate['Enter Nickname'] + '" ' + \
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'pattern="' + nickname_pattern + '" name="username" tabindex="1" ' + \
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'required autofocus>'
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in_text_mode = text_mode_browser(ua_str)
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if in_text_mode:
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login_form += '<br>'
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login_form += \
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'\n\n' + \
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' <label for="password"><b>' + \
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translate['Password'] + '</b></label>\n' + \
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' <input type="password" ' + autocomplete_password_str + \
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' placeholder="' + translate['Enter Password'] + '" ' + \
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'pattern="{8,256}" name="password" tabindex="1" required>'
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if in_text_mode:
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login_form += '<br><br>'
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login_form += \
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'\n' + login_button_str + register_button_str + '\n' + \
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' </div>\n' + \
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'</form>\n' + \
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'<a href="https://gitlab.com/bashrc2/epicyon" tabindex="2">' + \
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'<img loading="lazy" decoding="async" class="license" title="' + \
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translate['Get the source code'] + '" alt="' + \
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translate['Get the source code'] + '" src="/icons/agpl.png" /></a>\n'
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login_form += html_footer()
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return login_form
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