Mercurial > piecrust2

annotate foodtruck/blueprint.py @ 772:3885421c29a3

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admin: Make the whole FoodTruck site into a blueprint. This makes it possible to use an app factory, which makes it easier to write unit tests.
author Ludovic Chabant <ludovic@chabant.com>
date Sun, 03 Jul 2016 07:54:54 -0700
parents
children
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3885421c29a3 admin: Make the whole FoodTruck site into a blueprint.
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1 import os
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2 import os.path
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3 import time
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4 import logging
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5 from flask import Blueprint, current_app, g, request, render_template
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6 from .configuration import (
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7 FoodTruckConfigNotFoundError, get_foodtruck_config)
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8 from .sites import FoodTruckSites, InvalidSiteError
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9
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10
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11 logger = logging.getLogger(__name__)
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12
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13
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14 # Prepare the Login extension.
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15 from flask.ext.login import LoginManager, UserMixin
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16
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17
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18 class User(UserMixin):
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19 def __init__(self, uid, pwd):
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20 self.id = uid
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21 self.password = pwd
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22
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23
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24 def load_user(user_id):
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25 admin_id = g.config.get('security/username')
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26 if admin_id == user_id:
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27 admin_pwd = g.config.get('security/password')
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28 return User(admin_id, admin_pwd)
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29 return None
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30
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31
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32 login_manager = LoginManager()
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33 login_manager.login_view = 'login'
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34 login_manager.user_loader(load_user)
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35
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36
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37 def record_login_manager(state):
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38 if state.app.secret_key == 'temp-key':
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39 def _handler():
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40 raise FoodTruckConfigNotFoundError()
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41
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42 logger.debug("No secret key found, disabling website login.")
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43 login_manager.unauthorized_handler(_handler)
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44 login_manager.login_view = None
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45
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46
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47 # Setup Bcrypt.
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48 from foodtruck.bcryptfallback import Bcrypt
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49 bcrypt_ext = Bcrypt()
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50
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51
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52 def record_bcrypt(state):
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53 if (getattr(Bcrypt, 'is_fallback_bcrypt', None) is True and
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54 not state.app.config.get('FOODTRUCK_CMDLINE_MODE', False)):
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55 raise Exception(
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56 "You're running FoodTruck outside of `chef`, and will need to "
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57 "install Flask-Bcrypt to get more proper security.")
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58
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59
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60 # Create the FoodTruck blueprint.
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61 foodtruck_bp = Blueprint(
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62 'FoodTruck', __name__,
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63 template_folder='templates',
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64 static_folder='static')
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65
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66 foodtruck_bp.record(record_login_manager)
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67 foodtruck_bp.record(record_bcrypt)
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68
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69
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70 def after_this_request(f):
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71 if not hasattr(g, 'after_request_callbacks'):
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72 g.after_request_callbacks = []
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73 g.after_request_callbacks.append(f)
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74 return f
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75
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76
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77 class LazySomething(object):
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78 def __init__(self, factory):
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79 self._factory = factory
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80 self._something = None
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81
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82 def __getattr__(self, name):
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83 if self._something is not None:
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84 return getattr(self._something, name)
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85
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86 self._something = self._factory()
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87 return getattr(self._something, name)
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88
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89
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90 @foodtruck_bp.before_request
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91 def _setup_foodtruck_globals():
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92 def _get_config():
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93 admin_root = current_app.config['FOODTRUCK_ROOT']
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94 procedural_config = current_app.config['FOODTRUCK_PROCEDURAL_CONFIG']
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95 return get_foodtruck_config(admin_root, procedural_config)
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96
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97 def _get_sites():
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98 names = g.config.get('sites')
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99 if not names or not isinstance(names, dict):
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100 raise InvalidSiteError(
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101 "No sites are defined in the configuration file.")
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102
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103 current = request.cookies.get('foodtruck_site_name')
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104 if current is not None and current not in names:
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105 current = None
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106 if current is None:
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107 current = next(iter(names.keys()))
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108 s = FoodTruckSites(g.config, current)
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109 return s
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110
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111 def _get_current_site():
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112 return g.sites.get()
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113
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114 g.config = LazySomething(_get_config)
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115 g.sites = LazySomething(_get_sites)
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116 g.site = LazySomething(_get_current_site)
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117
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118
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119 @foodtruck_bp.after_request
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120 def _call_after_request_callbacks(response):
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121 for callback in getattr(g, 'after_request_callbacks', ()):
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122 callback(response)
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123 return response
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124
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125
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126 @foodtruck_bp.errorhandler
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127 def _on_error(ex):
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128 logging.exception(ex)
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129
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130
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131 @foodtruck_bp.app_template_filter('iso8601')
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132 def timestamp_to_iso8601(t):
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133 t = time.localtime(t)
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134 return time.strftime('%Y-%m-%dT%H:%M:%SZ', t)
3885421c29a3 admin: Make the whole FoodTruck site into a blueprint.
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135
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136
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137 @foodtruck_bp.app_template_filter('datetime')
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138 def timestamp_to_datetime(t, fmt=None):
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139 fmt = fmt or '%x'
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140 t = time.localtime(t)
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141 return time.strftime(fmt, t)
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142
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143
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144 import foodtruck.views.create # NOQA
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145 import foodtruck.views.dashboard # NOQA
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146 import foodtruck.views.edit # NOQA
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147 import foodtruck.views.menu # NOQA
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148 import foodtruck.views.preview # NOQA
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149 import foodtruck.views.publish # NOQA
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150 import foodtruck.views.sources # NOQA
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151
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152