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3
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1 local Luan = require "luan:Luan.luan"
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2 local error = Luan.error
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3 local String = require "luan:String.luan"
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4 local trim = String.trim or error()
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5 local Html = require "luan:Html.luan"
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6 local url_encode = Html.url_encode or error()
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7 local Io = require "luan:Io.luan"
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4
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8 local output_of = Io.output_of or error()
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3
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9 local Http = require "luan:http/Http.luan"
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10 local Shared = require "site:/lib/Shared.luan"
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11 local head = Shared.head or error()
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12 local header = Shared.header or error()
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13 local footer = Shared.footer or error()
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14 local base_url = Shared.base_url or error()
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15 local Forum = require "site:/lib/Forum.luan"
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16 local forum_title = Forum.title or error()
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17 local User = require "site:/lib/User.luan"
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4
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18 local Mail = require "site:/lib/Mail.luan"
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3
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19 local Db = require "site:/lib/Db.luan"
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20 local run_in_transaction = Db.run_in_transaction or error()
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21
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22
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23 local function get_user(email,password)
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24 local user = User.get_by_email(email)
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25 user or error "email not found"
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26 user.password == password or error "wrong password"
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27 return user
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28 end
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29
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30 local function login(user)
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31 Http.response.set_persistent_cookie("user",user.name)
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32 Http.response.set_persistent_cookie("password",user.password)
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33 Http.request.cookies.user = user.name
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34 Http.request.cookies.password = user.password
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35 end
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36
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37 local function register_form(user,name,error_message)
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38 if error_message ~= nil then %>
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39 <p error>Error: <%= error_message %></p>
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40 <% end %>
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41 <form>
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42 <input type="hidden" name="email" value="<%= user.email %>" >
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43 <input type="hidden" name="password" value="<%= user.password %>" >
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44 <label>User name for <%= user.email %></label>
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45 <input type="text" name="name" value="<%= name or "" %>" autofocus required>
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46 <input type="submit" value="Register">
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47 </form>
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48 <%
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49 end
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50
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51 local function page(contents)
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52 Io.stdout = Http.response.text_writer()
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53 %>
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54 <!doctype html>
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55 <html>
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56 <head>
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57 <% head() %>
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58 <title><%=forum_title%> - Login or Register</title>
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59 </head>
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60 <body>
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61 <% header() %>
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62 <div content>
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63 <h1>Login or Register</h1>
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64 <%
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65 contents()
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66 %>
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67 </div>
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68 <% footer() %>
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69 </body>
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70 </html>
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71 <%
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72 end
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73
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74 return function()
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75 local email = Http.request.parameters.email
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76 local password = Http.request.parameters.password
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77 local name = Http.request.parameters.name
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78 if email == nil then
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79 page(function()
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80 %>
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81 <form>
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82 <label>Email address</label>
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83 <input type="email" name="email" autofocus required>
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84 <input type="submit" value="Login or Register">
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85 </form>
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86 <%
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87 end)
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88 elseif password == nil then
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89 local user = User.get_or_create_by_email(email)
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4
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90 local mailer = Mail.sender() or error "mail not configured"
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91 mailer.send{
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92 From = forum_title.." <support@freedit.org>"
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93 To = user.email
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94 Subject = "Login"
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95 body = output_of(function() %>
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96 Login or register by clicking this link:
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97
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98 <%=base_url()%>/login.html?email=<%=url_encode(email)%>&password=<%=user.password%>
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99 <% end)
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100 }
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3
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101 page(function()
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102 %>
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103 <p>We have sent you an email. Please check your email to login or register.</p>
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104 <%
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105 end)
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106 elseif name == nil then
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107 local user = get_user(email,password)
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108 if user.name == nil then
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109 page(function()
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110 register_form(user)
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111 end)
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112 else
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113 login(user)
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114 page(function()
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115 %>
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116 <p>You are now logged in.</p>
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117 <%
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118 end)
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119 end
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120 else
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121 name = trim(name)
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122 #name > 0 or error "empty name"
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123 local error_message = nil
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124 local user
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125 run_in_transaction( function()
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126 user = get_user(email,password)
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127 if user.name ~= name and User.get_by_name(name) ~= nil then
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128 error_message = "Name already in use"
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129 else
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130 user.name = name
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131 user.save()
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132 end
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133 end )
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134 if error_message ~= nil then
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135 page(function()
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136 register_form(user,name,error_message)
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137 end)
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138 else
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139 login(user)
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140 page(function()
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141 %>
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142 <p>You are now registered.</p>
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143 <%
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144 end)
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145 end
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146 end
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147 end
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