1 ! Copyright (c) 2008, 2010 Slava Pestov
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2 ! See http://factorcode.org/license.txt for BSD license.
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3 USING: accessors assocs namespaces kernel sequences sets
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4 destructors combinators fry logging io.encodings.utf8
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5 io.encodings.string io.binary io.sockets.secure random checksums
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10 http.server.dispatchers
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15 furnace.auth.providers
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16 furnace.auth.providers.db ;
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17 FROM: assocs => change-at ;
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18 FROM: namespaces => set ;
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21 SYMBOL: logged-in-user
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23 : logged-in? ( -- ? )
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24 logged-in-user get >boolean ;
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26 : username ( -- string/f )
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27 logged-in-user get dup [ username>> ] when ;
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29 GENERIC: init-user-profile ( responder -- )
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31 M: object init-user-profile drop ;
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33 M: dispatcher init-user-profile
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34 default>> init-user-profile ;
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36 M: filter-responder init-user-profile
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37 responder>> init-user-profile ;
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39 : current-profile ( -- assoc ) logged-in-user get profile>> ;
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41 : user-changed ( -- )
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42 logged-in-user get t >>changed? drop ;
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44 : uget ( key -- value )
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45 current-profile at ;
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47 : uset ( value key -- )
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48 current-profile set-at
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51 : uchange ( quot key -- )
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52 current-profile swap change-at
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53 user-changed ; inline
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55 SYMBOL: capabilities
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57 V{ } clone capabilities set-global
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59 : define-capability ( word -- ) capabilities get adjoin ;
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61 TUPLE: realm < dispatcher name users checksum secure ;
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63 GENERIC: login-required* ( description capabilities realm -- response )
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65 GENERIC: user-registered ( user realm -- response )
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67 M: object user-registered 2drop URL" $realm" <redirect> ;
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69 GENERIC: init-realm ( realm -- )
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71 GENERIC: logged-in-username ( realm -- username )
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73 : login-required ( description capabilities -- * )
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74 realm get login-required* exit-with ;
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76 : new-realm ( responder name class -- realm )
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82 ssl-supported? >>secure ; inline
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84 : users ( -- provider )
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87 TUPLE: user-saver user ;
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89 C: <user-saver> user-saver
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91 M: user-saver dispose
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92 user>> dup changed?>> [ users update-user ] [ drop ] if ;
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94 : save-user-after ( user -- )
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95 <user-saver> &dispose drop ;
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97 : init-user ( user -- )
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98 [ [ logged-in-user set ] [ save-user-after ] bi ] when* ;
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100 \ init-user DEBUG add-input-logging
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102 M: realm call-responder* ( path responder -- response )
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106 dup logged-in-username
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107 dup [ users get-user ] when
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112 : encode-password ( string salt -- bytes )
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113 [ utf8 encode ] [ 4 >be ] bi* append
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114 realm get checksum>> checksum-bytes ;
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116 : >>encoded-password ( user string -- user )
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117 32 random-bits [ encode-password ] keep
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118 [ >>password ] [ >>salt ] bi* ; inline
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120 : valid-login? ( password user -- ? )
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121 [ salt>> encode-password ] [ password>> ] bi = ;
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123 : check-login ( password username -- user/f )
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124 users get-user dup [ [ valid-login? ] keep and ] [ 2drop f ] if ;
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126 : if-secure-realm ( quot -- )
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127 realm get secure>> [ if-secure ] [ call ] if ; inline
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129 TUPLE: secure-realm-only < filter-responder ;
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131 C: <secure-realm-only> secure-realm-only
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133 M: secure-realm-only call-responder*
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134 '[ _ _ call-next-method ] if-secure-realm ;
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136 TUPLE: protected < filter-responder description capabilities ;
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138 : <protected> ( responder -- protected )
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142 : have-capabilities? ( capabilities -- ? )
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143 realm get secure>> secure-connection? not and [ drop f ] [
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144 logged-in-user get {
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145 { [ dup not ] [ 2drop f ] }
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146 { [ dup deleted>> 1 = ] [ 2drop f ] }
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147 [ capabilities>> subset? ]
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151 M: protected call-responder* ( path responder -- response )
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153 dup capabilities>> have-capabilities?
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154 [ call-next-method ] [
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155 [ drop ] [ [ description>> ] [ capabilities>> ] bi ] bi*
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156 realm get login-required*
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159 : <auth-boilerplate> ( responder -- responder' )
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160 <boilerplate> { realm "boilerplate" } >>template ;
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162 : password-mismatch ( -- * )
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163 "passwords do not match" validation-error
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164 validation-failed ;
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166 : same-password-twice ( -- )
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167 "new-password" value "verify-password" value =
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168 [ password-mismatch ] unless ;
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170 : user-exists ( -- * )
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171 "username taken" validation-error
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172 validation-failed ;
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