1 | ;;;; $Id: event.lisp 179 2007-04-18 18:57:32Z ehuelsmann $ |
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2 | ;;;; $URL: tags/0.8.1/event.lisp $ |
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3 | |
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4 | ;;;; See LICENSE for licensing information. |
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5 | |
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6 | (in-package :irc) |
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7 | |
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8 | (defgeneric irc-message-event (connection message) |
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9 | (:documentation "Upon receipt of an IRC message from the |
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10 | connection's stream, irc-message-event will be called with the |
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11 | message.")) |
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12 | |
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13 | (defmethod irc-message-event (connection (message irc-message)) |
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14 | (declare (ignore connection)) |
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15 | (apply-to-hooks message) |
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16 | (client-log (connection message) message "UNHANDLED-EVENT:")) |
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17 | |
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18 | |
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19 | (defgeneric default-hook (message) |
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20 | (:documentation "Minimum action to be executed upon reception |
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21 | of the IRC message to keep the connection, channel and user |
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22 | objects in sync.")) |
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23 | |
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24 | (defmacro generate-maskmode-hooks (listmsg-class endmsg-class |
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25 | tmp-symbol mode-symbol) |
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26 | `(progn |
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27 | (defmethod default-hook ((message ,listmsg-class)) |
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28 | (destructuring-bind |
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29 | (target channel-name mask &optional set-by time-set) |
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30 | (arguments message) |
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31 | (declare (ignore target set-by time-set)) |
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32 | ;; note: the structure currently does not allow for logging |
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33 | ;; set-by and time-set: the MODE message handling currently |
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34 | ;; does not allow that. |
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35 | (let ((channel (find-channel (connection message) channel-name))) |
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36 | (when channel |
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37 | (unless (has-mode-p channel ',tmp-symbol) |
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38 | ;; start with a new list, replacing the old value later |
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39 | (add-mode channel ',tmp-symbol |
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40 | (make-instance 'list-value-mode |
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41 | :value-type :non-user))) |
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42 | ;; use package-local symbol to prevent conflicts |
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43 | (set-mode channel ',tmp-symbol mask))))) |
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44 | |
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45 | (defmethod default-hook ((message ,endmsg-class)) |
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46 | (let ((channel (find-channel (connection message) |
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47 | (car (arguments message))))) |
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48 | (when channel |
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49 | (let ((mode (has-mode-p channel ',tmp-symbol))) |
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50 | (when mode |
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51 | ;; replace list |
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52 | (add-mode channel ',mode-symbol mode) |
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53 | (remove-mode channel ',tmp-symbol)))))))) |
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54 | |
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55 | (generate-maskmode-hooks irc-rpl_banlist-message |
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56 | irc-rpl_endofbanlist-message |
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57 | banlist-in-progress :ban) |
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58 | (generate-maskmode-hooks irc-rpl_exceptlist-message |
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59 | irc-rpl_endofexceptlist-message |
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60 | exceptlist-in-progress :except) |
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61 | (generate-maskmode-hooks irc-rpl_invitelist-message |
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62 | irc-rpl_endofinvitelist-message |
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63 | invitelist-in-progress :invite) |
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64 | |
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65 | (defmethod default-hook ((message irc-rpl_isupport-message)) |
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66 | (destructuring-bind |
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67 | (target &rest capabilities) |
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68 | ;; the last argument contains only an explanitory text |
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69 | (butlast (arguments message)) |
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70 | (declare (ignore target)) |
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71 | (let* ((connection (connection message)) |
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72 | (current-case-mapping (case-map-name connection))) |
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73 | (flet ((split-arg (x) |
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74 | (let ((eq-pos (position #\= x))) |
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75 | (if eq-pos |
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76 | (list (substring x 0 eq-pos) |
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77 | (substring x (1+ eq-pos))) |
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78 | (list x)))) |
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79 | (decode-arg (text) |
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80 | ;; decode \xHH into (char-code HH) |
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81 | ;; btw: how should that work with multibyte utf8? |
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82 | (format nil "~{~A~}" |
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83 | (do* ((start 0 (+ 4 pos)) |
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84 | (pos (search "\\x" text) |
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85 | (search "\\x" text :start2 (1+ pos))) |
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86 | (points)) |
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87 | ((null pos) |
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88 | (reverse (push (substring text start) points))) |
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89 | (push (substring text start pos) points) |
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90 | (push (code-char (parse-integer text |
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91 | :start (+ 2 pos) |
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92 | :end (+ 4 pos) |
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93 | :junk-allowed nil |
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94 | :radix 16)) |
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95 | points)))) |
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96 | (negate-param (param) |
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97 | (if (eq #\- (char (first param) 0)) |
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98 | (assoc (substring (first param) 1) |
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99 | *default-isupport-values* |
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100 | :test #'string=) |
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101 | param))) |
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102 | |
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103 | (setf (server-capabilities connection) |
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104 | (reduce #'(lambda (x y) |
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105 | (adjoin y x :key #'first :test #'string=)) |
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106 | (append |
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107 | (remove nil (mapcar #'negate-param |
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108 | (mapcar #'(lambda (x) |
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109 | (mapcar #'decode-arg x)) |
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110 | (mapcar #'split-arg |
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111 | capabilities)))) |
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112 | (server-capabilities connection)) |
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113 | :initial-value '())) |
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114 | (setf (channel-mode-descriptions connection) |
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115 | (chanmode-descs-from-isupport (server-capabilities connection)) |
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116 | (nick-prefixes connection) |
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117 | (nick-prefixes-from-isupport (server-capabilities connection))) |
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118 | (when (not (equal current-case-mapping |
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119 | (case-map-name connection))) |
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120 | ;; we need to re-normalize nicks and channel names |
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121 | (re-apply-case-mapping connection)))))) |
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122 | |
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123 | (defmethod default-hook ((message irc-rpl_whoisuser-message)) |
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124 | (destructuring-bind |
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125 | (target nick username hostname star realname) |
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126 | (arguments message) |
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127 | (declare (ignore target star)) |
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128 | (let ((user (find-user (connection message) nick))) |
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129 | (when user |
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130 | (setf (realname user) realname |
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131 | (username user) username |
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132 | (hostname user) hostname))))) |
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133 | |
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134 | (defmethod default-hook ((message irc-rpl_list-message)) |
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135 | (destructuring-bind |
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136 | (channel count topic) |
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137 | (arguments message) |
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138 | (let ((connection (connection message)) |
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139 | (user-count (parse-integer count))) |
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140 | (add-channel connection (or (find-channel connection channel) |
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141 | (make-channel connection |
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142 | :name channel |
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143 | :topic topic |
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144 | :user-count user-count)))))) |
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145 | |
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146 | (defmethod default-hook ((message irc-rpl_topic-message)) |
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147 | (destructuring-bind |
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148 | (target channel &optional topic) |
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149 | (arguments message) |
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150 | (declare (ignore target)) |
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151 | (setf (topic (find-channel (connection message) channel)) topic))) |
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152 | |
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153 | (defmethod default-hook ((message irc-rpl_namreply-message)) |
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154 | (let* ((connection (connection message))) |
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155 | (destructuring-bind |
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156 | (nick chan-visibility channel names) |
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157 | (arguments message) |
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158 | (declare (ignore nick)) |
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159 | (let ((channel (find-channel connection channel))) |
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160 | (setf (visibility channel) |
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161 | (or (second (assoc chan-visibility |
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162 | '(("=" :public) ("*" :private) ("@" :secret)) |
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163 | :test #'string=)) |
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164 | :unknown)) |
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165 | (unless (has-mode-p channel 'namreply-in-progress) |
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166 | (add-mode channel 'namreply-in-progress |
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167 | (make-instance 'list-value-mode :value-type :user))) |
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168 | (dolist (nickname (tokenize-string names)) |
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169 | (let ((user (find-or-make-user connection |
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170 | (canonicalize-nickname connection |
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171 | nickname)))) |
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172 | (unless (equal user (user connection)) |
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173 | (add-user connection user) |
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174 | (add-user channel user) |
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175 | (set-mode channel 'namreply-in-progress user)) |
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176 | (let* ((mode-char (getf (nick-prefixes connection) |
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177 | (elt nickname 0))) |
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178 | (mode-name (when mode-char |
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179 | (mode-name-from-char connection |
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180 | channel mode-char)))) |
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181 | (when mode-name |
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182 | (if (has-mode-p channel mode-name) |
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183 | (set-mode channel mode-name user) |
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184 | (set-mode-value (add-mode channel mode-name |
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185 | (make-mode connection |
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186 | channel mode-name)) |
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187 | user)))))))))) |
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188 | |
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189 | (defmethod default-hook ((message irc-rpl_endofnames-message)) |
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190 | (let* ((channel (find-channel (connection message) |
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191 | (second (arguments message)))) |
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192 | (mode (get-mode channel 'namreply-in-progress)) |
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193 | (channel-users)) |
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194 | (remove-mode channel 'namreply-in-progress) |
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195 | (maphash #'(lambda (nick user-obj) |
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196 | (declare (ignore nick)) |
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197 | (pushnew user-obj channel-users)) (users channel)) |
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198 | (dolist (user (remove-if #'(lambda (x) |
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199 | (member x mode)) channel-users)) |
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200 | (remove-user channel user)))) |
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201 | |
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202 | (defmethod default-hook ((message irc-ping-message)) |
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203 | (apply #'pong (connection message) (arguments message))) |
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204 | |
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205 | (defmethod default-hook ((message irc-join-message)) |
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206 | (with-slots |
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207 | (connection source host user arguments) |
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208 | message |
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209 | (destructuring-bind |
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210 | (channel) |
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211 | arguments |
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212 | (let ((user (find-or-make-user connection source |
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213 | :hostname host |
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214 | :username user)) |
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215 | (channel (or (find-channel connection channel) |
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216 | (make-channel connection :name channel)))) |
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217 | (when (self-message-p message) |
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218 | (add-channel connection channel)) |
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219 | (add-user connection user) |
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220 | (add-user channel user))))) |
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221 | |
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222 | (defmethod default-hook ((message irc-topic-message)) |
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223 | (with-slots |
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224 | (connection arguments) |
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225 | message |
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226 | (destructuring-bind |
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227 | (channel &optional topic) |
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228 | arguments |
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229 | (setf (topic (find-channel connection channel)) topic)))) |
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230 | |
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231 | (defmethod default-hook ((message irc-part-message)) |
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232 | (with-slots |
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233 | (connection arguments source) |
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234 | message |
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235 | (destructuring-bind |
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236 | (channel &optional text) |
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237 | arguments |
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238 | (declare (ignore text)) |
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239 | (let ((channel (find-channel connection channel)) |
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240 | (user (find-user connection source))) |
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241 | (when (and user channel) |
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242 | (if (self-message-p message) |
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243 | (remove-channel user channel) |
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244 | (remove-user channel user))))))) |
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245 | |
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246 | (defmethod default-hook ((message irc-quit-message)) |
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247 | (let* ((connection (connection message)) |
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248 | (user (find-user connection (source message)))) |
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249 | (unless (null user) |
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250 | (remove-user-everywhere connection user)))) |
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251 | |
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252 | (defmethod default-hook ((message irc-rpl_channelmodeis-message)) |
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253 | (with-slots |
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254 | (connection arguments) |
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255 | message |
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256 | (destructuring-bind |
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257 | (target channel &rest mode-arguments) |
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258 | arguments |
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259 | (let* ((channel (find-channel connection channel)) |
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260 | (mode-changes |
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261 | (when channel |
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262 | (parse-mode-arguments connection channel mode-arguments |
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263 | :server-p (user connection))))) |
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264 | (dolist (change mode-changes) |
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265 | (destructuring-bind |
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266 | (op mode-name value) |
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267 | change |
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268 | (unless (has-mode-p channel mode-name) |
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269 | (add-mode target mode-name |
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270 | (make-mode connection channel mode-name))) |
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271 | (funcall (if (char= #\+ op) #'set-mode #'unset-mode) |
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272 | channel mode-name value))))))) |
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273 | |
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274 | (defmethod default-hook ((message irc-mode-message)) |
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275 | (destructuring-bind |
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276 | (target &rest arguments) |
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277 | (arguments message) |
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278 | (let* ((connection (connection message)) |
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279 | (target (or (find-channel connection target) |
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280 | (find-user connection target))) |
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281 | (mode-changes |
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282 | (when target |
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283 | (parse-mode-arguments connection target arguments |
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284 | :server-p (user connection))))) |
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285 | (dolist (change mode-changes) |
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286 | (destructuring-bind |
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287 | (op mode-name value) |
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288 | change |
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289 | (unless (has-mode-p target mode-name) |
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290 | (add-mode target mode-name |
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291 | (make-mode connection target mode-name))) |
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292 | (funcall (if (char= #\+ op) #'set-mode #'unset-mode) |
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293 | target mode-name value)))))) |
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294 | |
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295 | (defmethod default-hook ((message irc-nick-message)) |
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296 | (with-slots |
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297 | (connection source host user arguments) |
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298 | message |
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299 | (destructuring-bind |
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300 | (new-nick) |
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301 | arguments |
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302 | (let* ((user (find-or-make-user connection source |
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303 | :hostname host |
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304 | :username user))) |
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305 | (change-nickname connection user new-nick))))) |
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306 | |
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307 | (defmethod default-hook ((message irc-kick-message)) |
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308 | (with-slots |
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309 | (connection arguments) |
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310 | message |
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311 | (destructuring-bind |
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312 | (channel nick &optional reason) |
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313 | arguments |
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314 | (declare (ignore reason)) |
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315 | (let* ((channel (find-channel connection channel)) |
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316 | (user (find-user connection nick))) |
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317 | (when (and user channel) |
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318 | (if (user-eq-me-p connection user) |
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319 | (remove-channel user channel) |
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320 | (remove-user channel user))))))) |
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321 | |
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322 | (macrolet ((define-ctcp-reply-hook ((message-var message-type) &body body) |
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323 | `(defmethod default-hook ((,message-var ,message-type)) |
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324 | (when (ctcp-request-p ,message-var) |
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325 | ,@body)))) |
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326 | (define-ctcp-reply-hook (message ctcp-time-message) |
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327 | (multiple-value-bind |
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328 | (second minute hour date month year day) |
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329 | (get-decoded-time) |
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330 | (send-irc-message |
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331 | (connection message) |
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332 | :notice (source message) |
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333 | (make-ctcp-message |
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334 | (format nil "TIME ~A" |
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335 | (make-time-message second minute hour date month year day)))))) |
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336 | (define-ctcp-reply-hook (message ctcp-source-message) |
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337 | (send-irc-message |
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338 | (connection message) |
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339 | :notice |
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340 | (source message) |
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341 | (make-ctcp-message |
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342 | (format nil "SOURCE ~A:~A:~A" |
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343 | *download-host* |
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344 | *download-directory* |
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345 | *download-file*)))) |
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346 | (define-ctcp-reply-hook (message ctcp-finger-message) |
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347 | (let* ((user (user (connection message))) |
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348 | (finger-info (if (not (zerop (length (realname user)))) |
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349 | (realname user) |
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350 | (nickname user)))) |
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351 | (send-irc-message |
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352 | (connection message) |
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353 | :notice (source message) |
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354 | (make-ctcp-message |
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355 | (format nil "FINGER ~A" finger-info))))) |
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356 | (define-ctcp-reply-hook (message ctcp-version-message) |
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357 | (send-irc-message |
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358 | (connection message) |
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359 | :notice (source message) |
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360 | (make-ctcp-message |
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361 | (format nil "VERSION ~A" *ctcp-version*)))) |
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362 | (define-ctcp-reply-hook (message ctcp-ping-message) |
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363 | (send-irc-message |
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364 | (connection message) |
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365 | :notice (source message) |
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366 | (make-ctcp-message |
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367 | (format nil "PING ~A" (car (last (arguments message)))))))) |
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368 | |
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369 | (defmethod irc-message-event (connection (message ctcp-dcc-chat-request-message)) |
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370 | (declare (ignore connection)) |
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371 | (apply-to-hooks message) |
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372 | (client-log (connection message) message)) |
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373 | ; (when (automatically-accept-dcc-connections (configuration (connection message))) |
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374 | ; (let* ((user (find-user (connection message) (source message))) |
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375 | ; (args (tokenize-string (trailing-argument message))) |
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376 | ; (remote-address (hbo-to-dotted-quad (parse-integer (fourth args)))) |
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377 | ; (remote-port (parse-integer (fifth args) :junk-allowed t))) |
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378 | ; (push (make-dcc-connection :user user |
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379 | ; :remote-address remote-address |
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380 | ; :remote-port remote-port) |
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381 | ; *dcc-connections*)))) |
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382 | |
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383 | (defmethod irc-message-event (connection (message ctcp-dcc-send-request-message)) |
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384 | (declare (ignore connection)) |
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385 | (apply-to-hooks message) |
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386 | (client-log (connection message) message)) |
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387 | ; (when (automatically-accept-dcc-downloads (configuration (connection message))) |
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388 | ; (let* ((user (find-user (connection message) (source message))) |
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389 | ; (args (tokenize-string (trailing-argument message))) |
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390 | ; (filename (third args)) |
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391 | ; (remote-address (hbo-to-dotted-quad (parse-integer (fourth args)))) |
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392 | ; (remote-port (parse-integer (fifth args))) |
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393 | ; (filesize (parse-integer (sixth args) :junk-allowed t))) |
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394 | ; (let ((dcc-connection (make-dcc-connection :user user |
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395 | ; :remote-address remote-address |
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396 | ; :remote-port remote-port))) |
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397 | ; (with-open-file (stream filename :direction :output |
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398 | ; :if-exists :supersede) |
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399 | ; (write-sequence (read-message-loop dcc-connection) stream)))))) |
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400 | |
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