It sends messages! You can actually send messages now! (only one-to-one)
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stuff.lisp
144
stuff.lisp
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@ -9,6 +9,8 @@
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(defparameter +muc-ns+ "http://jabber.org/protocol/muc")
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(defparameter +file-upload-ns+ "urn:xmpp:http:upload:0")
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(defparameter +oob-ns+ "jabber:x:oob")
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(defparameter +chat-markers-ns+ "urn:xmpp:chat-markers:0")
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(defparameter +delivery-delay-ns+ "urn:xmpp:delay")
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(defparameter +vcard-temp-ns+ "vcard-temp")
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(defclass xmpp-component (event-emitter)
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@ -208,12 +210,15 @@
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(setf (gethash uuid promises) promise)
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(values uuid promise))))
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(defmacro with-stanza ((comp stanza-name &key type from to) &body body)
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(alexandria:with-gensyms (uuid ret from-sym)
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(defmacro with-stanza ((comp stanza-name &key type from to id) &body body)
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(alexandria:with-gensyms (uuid ret from-sym id-sym)
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`(with-component-xml-output (,comp)
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(let ((,from-sym (or ,from (component-name ,comp))))
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(let ((,from-sym (or ,from (component-name ,comp)))
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(,id-sym ,id))
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(multiple-value-bind (,uuid ,ret)
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(make-message-uuid ,comp)
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(if ,id-sym
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(values ,id-sym ,id-sym)
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(make-message-uuid ,comp))
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(cxml:with-element ,stanza-name
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(cxml:attribute "from" ,from-sym)
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(cxml:attribute "id" ,uuid)
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@ -224,20 +229,22 @@
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,@body)
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,ret)))))
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(defmacro with-iq ((comp to &key (type "get") from) &body body)
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(defmacro with-iq ((comp to &key (type "get") from id) &body body)
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"Send an IQ stanza (of type TYPE) on the COMP component, from the JID FROM (default: component name) to the JID TO, with BODY specifying further CXML commands to make up the body of the stanza. Returns a promise."
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`(with-stanza (,comp "iq"
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:type ,type
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:to ,to
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:from ,from)
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:from ,from
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:id ,id)
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,@body))
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(defmacro with-message ((comp to &key (type "chat") from) &body body)
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(defmacro with-message ((comp to &key (type "chat") from id) &body body)
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"Send a message stanza (of type TYPE) on the COMP component. Semantics the same as WITH-IQ, except for the fact that message stanzas don't normally prompt a response."
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`(with-stanza (,comp "message"
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:type ,type
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:to ,to
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:from ,from)
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:from ,from
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:id ,id)
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,@body))
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(defmacro with-presence ((comp to &key type from) &body body)
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@ -623,6 +630,7 @@ Commands:
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- register: set up the bridge
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- connect: manually connect to WhatsApp
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- stop: disconnect from WhatsApp, and disable automatic reconnections
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- status: get your current status
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- help: view this help text")
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(defun admin-msg (comp jid text)
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@ -684,11 +692,40 @@ Commands:
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(admin-msg comp jid (format nil "Failed to upload QR code!~%Report the following error to the bridge admin: `~A`" e))
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(invoke-debugger e))))))
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(defparameter *user-jid-scanner*
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(cl-ppcre:create-scanner "u([0-9]+)"))
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(defparameter *group-jid-scanner*
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(cl-ppcre:create-scanner "g([0-9]+)-([0-9]+)"))
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(defun wa-jid-to-whatsxmpp-localpart (waj)
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"Convert a whatscl JID object to a WhatsXMPP localpart."
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(with-accessors ((localpart whatscl::jid-localpart) (hostname whatscl::jid-hostname)) waj
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(cond
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((or (equal hostname "s.whatsapp.net") (equal hostname "c.us"))
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(concatenate 'string "u" localpart))
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((equal hostname "g.us")
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(concatenate 'string "g" localpart))
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(t
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(concatenate 'string "other-" localpart "-" hostname)))))
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(defun whatsxmpp-localpart-to-wa-jid (localpart)
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"Parses a WhatsXMPP localpart, returning a whatscl JID object if parsing is successful.
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WhatsXMPP represents users as u440123456789 and groups as g1234-5678."
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(cl-ppcre:register-groups-bind (digits)
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(*user-jid-scanner* localpart)
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(return-from whatsxmpp-localpart-to-wa-jid
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(whatscl::make-jid digits "s.whatsapp.net")))
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(cl-ppcre:register-groups-bind (creator ts)
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(*group-jid-scanner* localpart)
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(return-from whatsxmpp-localpart-to-wa-jid
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(whatscl::make-jid (concatenate 'string creator "-" ts) "g.us"))))
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(defun wa-conn-recent-p (comp conn jid)
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(let ((current (gethash jid (component-whatsapps comp))))
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(eql current conn)))
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(defmacro with-wa-handler-context ((comp conn jid) &rest body)
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(defmacro with-wa-handler-context ((comp conn jid) &body body)
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"Takes the component data lock, checks that CONN is the most up-to-date connection for JID, and then executes BODY."
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`(with-component-data-lock (,comp)
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(if (wa-conn-recent-p ,comp ,conn ,jid)
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@ -761,6 +798,36 @@ Commands:
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(admin-msg comp jid "(Disabling automatic reconnections.)")
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(remhash jid (component-whatsapps comp))))
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(defun wa-handle-message (comp conn jid msg delivery-type)
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(with-wa-handler-context (comp conn jid)
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(let* ((key (whatscl::message-key msg))
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(wa-id (whatscl::message-id msg))
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(contents (whatscl::message-contents msg))
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(wa-ts (whatscl::message-ts msg))
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(xmpp-id (concatenate 'string
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"wa-" wa-id "-" (write-to-string wa-ts)))
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(local-time:*default-timezone* local-time:+utc-zone+)
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(ts (local-time:unix-to-timestamp wa-ts)))
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(format *debug-io* "~&message ~A for ~A with key ~A (type ~A)~%"
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wa-id jid key delivery-type)
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(when (eql delivery-type :relay) ; i.e. realtime
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(when (typep key 'whatscl::message-key-receiving) ; ignore group and self messages
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(when (typep contents 'whatscl::message-contents-text)
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(let ((text (whatscl::contents-text contents))
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(from (concatenate 'string
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(wa-jid-to-whatsxmpp-localpart (whatscl::key-jid key))
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"@"
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(component-name comp)
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"/whatsapp")))
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(with-message (comp jid :from from :id xmpp-id)
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(cxml:with-element "body"
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(cxml:text text))
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(cxml:with-element "delay"
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(cxml:attribute "xmlns" +delivery-delay-ns+)
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(cxml:attribute "stamp" (local-time:format-timestring nil ts)))
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(cxml:with-element "markable"
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(cxml:attribute "xmlns" +chat-markers-ns+))))))))))
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(defun bind-wa-handlers (comp conn jid)
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(on :ws-open conn (lambda () (wa-handle-ws-open comp conn jid)))
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(on :ws-close conn (lambda (&rest args)
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@ -770,6 +837,7 @@ Commands:
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(on :error conn (lambda (e) (wa-handle-error comp conn jid e)))
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(on :error-status-code conn (lambda (e) (wa-handle-error-status-code comp conn jid e)))
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(on :qrcode conn (lambda (text) (wa-handle-ws-qrcode comp conn jid text)))
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(on :message conn (lambda (msg dt) (wa-handle-message comp conn jid msg dt)))
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(on :connected conn (lambda (waj) (wa-handle-ws-connected comp conn jid waj))))
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(defun handle-setup-user (comp jid)
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@ -829,6 +897,17 @@ Commands:
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(reply *admin-help-text*))
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((not uid)
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(reply "You're not registered with this bridge. Try `register` or `help`."))
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((equal body "status")
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(multiple-value-bind (conn exists-p)
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(gethash stripped (component-whatsapps comp))
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(reply
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(cond
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((and conn (whatscl::wac-jid conn))
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(format nil "Connected and logged in as ~A."
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(whatscl::wac-jid conn)))
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(conn "Connected, but not logged in.")
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(exists-p "Temporarily disconnected.")
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(t "Disconnected (automatic reconnections disabled).")))))
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((equal body "connect")
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(handle-setup-user comp stripped))
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((equal body "stop")
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@ -852,22 +931,37 @@ Commands:
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(with-prepared-statement
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(get-user "SELECT id FROM users WHERE jid = ?")
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(let ((stripped (strip-resource from)))
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(bind-parameters get-user stripped))
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(let ((uid (when (sqlite:step-statement get-user)
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(first (column-values get-user)))))
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(cond
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((equal to-localpart "admin")
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(handle-admin-command comp from body uid))
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((not uid)
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(send-stanza-error comp
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:stanza-type "message"
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:id id :to from :from to
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:e (make-condition 'stanza-error
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:defined-condition "registration-required"
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:text "You must register to use this bridge."
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:type "auth")))
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(t
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(warn "Messages are unimplemented!"))))))))
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(bind-parameters get-user stripped)
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(let ((uid (when (sqlite:step-statement get-user)
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(first (column-values get-user))))
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(conn (gethash stripped (component-whatsapps comp)))
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(wa-jid (whatsxmpp-localpart-to-wa-jid to-localpart)))
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(labels
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((send-error (e)
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(send-stanza-error comp
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:stanza-type "message"
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:id id :to from :from to
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:e e)))
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(cond
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((equal to-localpart "admin")
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(handle-admin-command comp from body uid))
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((not uid)
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(send-error (make-condition 'stanza-error
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:defined-condition "registration-required"
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:text "You must register to use this bridge."
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:type "auth")))
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((not wa-jid)
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(send-error (make-condition 'stanza-error
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:defined-condition "item-not-found"
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:text "That user's JID isn't in a recognizable format."
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:type "modify")))
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((not conn)
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(send-error (make-condition 'stanza-error
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:defined-condition "recipient-unavailable"
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:text "You're currently not connected to WhatsApp."
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:type "wait")))
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(t
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(whatscl::send-simple-text-message conn wa-jid body))))))))))
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(defun whatsxmpp-init ()
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"Initialise the whatsxmpp bridge."
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