+ (setq timer nil))
+ (setq bytes-received (+ bytes-received (length string)))
+ (let ((new-hkbytes-received (/ bytes-received 102400)))
+ (when (> new-hkbytes-received hkbytes-received)
+ (setq hkbytes-received new-hkbytes-received)
+ (elpher-buffer-message
+ (concat "("
+ (number-to-string (/ hkbytes-received 10.0))
+ " MB read)")
+ 1)))
+ (setq response-string-parts
+ (cons string response-string-parts))))
+ (set-process-sentinel proc
+ (lambda (proc event)
+ (when timer
+ (cancel-timer timer))
+ (condition-case the-error
+ (cond
+ ((string-prefix-p "open" event) ; request URL
+ (elpher-buffer-message
+ (concat "Connected to " host ". Receiving data..."))
+ (let ((inhibit-eol-conversion t))
+ (process-send-string proc query-string)))
+ ((string-prefix-p "deleted" event)) ; do nothing
+ ((and (not response-string-parts)
+ (not (or elpher-ipv4-always force-ipv4)))
+ ; Try again with IPv4
+ (message "Connection failed. Retrying with IPv4.")
+ (elpher-get-host-response address default-port
+ query-string
+ response-processor
+ use-tls t))
+ (response-string-parts
+ (elpher-with-clean-buffer
+ (insert "Data received. Rendering..."))
+ (funcall response-processor
+ (apply #'concat (reverse response-string-parts)))
+ (elpher-restore-pos))
+ (t
+ (error "No response from server")))
+ (error
+ (elpher-network-error address the-error))))))
+ (error
+ (error "Error initiating connection to server")))))
+
+(defun elpher-generate-certificate (name key-file cert-file &optional temporary)
+ (let ((exp-key-file (expand-file-name key-file))
+ (exp-cert-file (expand-file-name cert-file)))
+ (call-process "openssl" nil nil nil
+ "req" "-x509" "-newkey" "rsa:2048"
+ "-days" (if temporary "1" "36500")
+ "-nodes"
+ "-subj" (concat "/CN=" name)
+ "-keyout" exp-key-file
+ "-out" exp-cert-file)
+ (list (elpher-address-host (elpher-page-address elpher-current-page))
+ temporary exp-key-file exp-cert-file)))
+
+(defun elpher-generate-throwaway-certificate ()
+ (let* ((file-base (make-temp-name "elpher"))
+ (key-file (concat temporary-file-directory file-base ".key"))
+ (cert-file (concat temporary-file-directory file-base ".crt")))
+ (elpher-generate-certificate file-base key-file cert-file t)))
+
+(defun elpher-generate-permanent-certificate (file-base)
+ (let* ((key-file (concat elpher-certificate-directory file-base ".key"))
+ (cert-file (concat elpher-certificate-directory file-base ".crt")))
+ (elpher-generate-certificate file-base key-file cert-file)))
+
+(defun elpher-get-existing-certificate (file-base)
+ (let* ((key-file (concat elpher-certificate-directory file-base ".key"))
+ (cert-file (concat elpher-certificate-directory file-base ".crt")))
+ (list (elpher-address-host (elpher-page-address elpher-current-page))
+ nil
+ (expand-file-name key-file)
+ (expand-file-name cert-file))))
+
+(defun elpher-list-existing-certificates ()
+ (mapcar
+ (lambda (file)
+ (file-name-sans-extension file))
+ (directory-files elpher-certificate-directory nil "\.key$")))
+
+
+(defun elpher-get-current-keylist (address)
+ (if elpher-client-certificate
+ (if (string= (car elpher-client-certificate)
+ (elpher-address-host address))
+ (list (cddr elpher-client-certificate))
+ (when (cadr elpher-client-certificate)
+ (delete-file (elt elpher-client-certificate 2))
+ (delete-file (elt elpher-client-certificate 3)))
+ (setq elpher-client-certificate nil)
+ (message "Disabling client certificate for new host")
+ nil)
+ nil))
+
+
+;;; Gopher selector retrieval
+;;
+
+(defun elpher-get-gopher-response (address renderer)
+ "Get response string from gopher server at ADDRESS and render using RENDERER."
+ (elpher-get-host-response address 70
+ (concat (elpher-gopher-address-selector address) "\r\n")
+ renderer
+ (or (string= (elpher-address-protocol address) "gophers")
+ elpher-use-tls)))
+
+(defun elpher-get-gopher-page (renderer)
+ "Getter function for gopher pages.
+The RENDERER procedure is used to display the contents of the page