X-Git-Url: https://thelambdalab.xyz/gitweb/index.cgi?a=blobdiff_plain;f=elpher.el;h=e1a2192f8344bba3caa2029ea1fee13428825a28;hb=b3e1dc1799b811b2cb5ac5c82142597f05911db5;hp=f2a8188d495178e4cd59248961bb01ddae267f5f;hpb=7c57225da0abd31b1c1da3814737410c49f2b868;p=elpher.git diff --git a/elpher.el b/elpher.el index f2a8188..e1a2192 100644 --- a/elpher.el +++ b/elpher.el @@ -4,7 +4,7 @@ ;; Author: Tim Vaughan ;; Created: 11 April 2019 -;; Version: 2.9.1 +;; Version: 2.10.2 ;; Keywords: comm gopher ;; Homepage: http://thelambdalab.xyz/elpher ;; Package-Requires: ((emacs "26.2")) @@ -66,12 +66,13 @@ (require 'ansi-color) (require 'nsm) (require 'gnutls) +(require 'socks) ;;; Global constants ;; -(defconst elpher-version "2.9.1" +(defconst elpher-version "2.10.2" "Current version of elpher.") (defconst elpher-margin-width 6 @@ -178,6 +179,11 @@ This can be useful when browsing from a computer that supports IPv6, because some servers which do not support IPv6 can take a long time to time-out." :type '(boolean)) +(defcustom elpher-socks-always nil + "If non-nil, elpher will establish network connections over a SOCKS proxy. +Otherwise, the SOCKS proxy is only used for connections to onion services." + :type '(boolean)) + ;; Face customizations (defgroup elpher-faces nil @@ -209,7 +215,7 @@ some servers which do not support IPv6 can take a long time to time-out." "Face used for html type directory records.") (defface elpher-gemini - '((t :inherit font-lock-regexp-grouping-backslash)) + '((t :inherit font-lock-constant-face)) "Face used for Gemini type directory records.") (defface elpher-other-url @@ -620,32 +626,18 @@ the host operating system and the local network capabilities." (condition-case nil (let* ((kill-buffer-query-functions nil) (port (elpher-address-port address)) + (service (if (> port 0) port default-port)) (host (elpher-address-host address)) + (socks (or elpher-socks-always (string-suffix-p ".onion" host))) (response-string-parts nil) (bytes-received 0) (hkbytes-received 0) - (proc (make-network-process :name "elpher-process" - :host host - :family (and force-ipv4 'ipv4) - :service (if (> port 0) port default-port) - :buffer nil - :coding 'binary - :noquery t - :nowait t - :tls-parameters - (and use-tls - (cons 'gnutls-x509pki - (gnutls-boot-parameters - :type 'gnutls-x509pki - :hostname host - :keylist - (elpher-get-current-keylist address)))))) (timer (run-at-time elpher-connection-timeout nil (lambda () (elpher-process-cleanup) (cond ; Try again with IPv4 - ((not force-ipv4) + ((not (or force-ipv4 socks)) (message "Connection timed out. Retrying with IPv4.") (elpher-get-host-response address default-port query-string @@ -662,8 +654,24 @@ the host operating system and the local network capabilities." response-processor nil force-ipv4)) (t - (elpher-network-error address "Connection time-out."))))))) + (elpher-network-error address "Connection time-out.")))))) + (gnutls-params (list :type 'gnutls-x509pki :hostname host + :keylist (elpher-get-current-keylist address))) + (proc (if socks (socks-open-network-stream "elpher-process" nil host service) + (make-network-process :name "elpher-process" + :host host + :family (and force-ipv4 'ipv4) + :service service + :buffer nil + :nowait t + :tls-parameters + (and use-tls + (cons 'gnutls-x509pki + (apply #'gnutls-boot-parameters + gnutls-params))))))) (setq elpher-network-timer timer) + (set-process-coding-system proc 'binary 'binary) + (set-process-query-on-exit-flag proc nil) (elpher-buffer-message (concat "Connecting to " host "..." " (press 'u' to abort)")) (set-process-filter proc @@ -696,7 +704,7 @@ the host operating system and the local network capabilities." (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))) + (not (or elpher-ipv4-always force-ipv4 socks))) ; Try again with IPv4 (message "Connection failed. Retrying with IPv4.") (elpher-get-host-response address default-port @@ -712,7 +720,10 @@ the host operating system and the local network capabilities." (t (error "No response from server"))) (error - (elpher-network-error address the-error)))))) + (elpher-network-error address the-error))))) + (when socks + (if use-tls (apply #'gnutls-negotiate :process proc gnutls-params)) + (funcall (process-sentinel proc) proc "open\n"))) (error (error "Error initiating connection to server"))))) @@ -763,8 +774,8 @@ longer needed for this session." (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 common-name) - "Generate and return details of a persistant certificate. +(defun elpher-generate-persistent-certificate (file-base common-name) + "Generate and return details of a persistent certificate. The argument FILE-BASE is used as the base for the key and certificate files, while COMMON-NAME specifies the common name field of the certificate. @@ -803,7 +814,9 @@ base for the installed key and certificate files." (expand-file-name cert-file)))) (defun elpher-list-existing-certificates () - "Return a list of the persistant certificates in `elpher-certificate-directory'." + "Return a list of the persistent certificates in `elpher-certificate-directory'." + (unless (file-directory-p elpher-certificate-directory) + (make-directory elpher-certificate-directory)) (mapcar (lambda (file) (file-name-sans-extension file)) @@ -1190,13 +1203,13 @@ that the response was malformed." (pcase (read-answer "What do you want to do? " '(("throwaway" ?t "generate and use throw-away certificate") - ("persistant" ?p - "generate new or use existing persistant certificate") + ("persistent" ?p + "generate new or use existing persistent certificate") ("abort" ?a "stop immediately"))) ("throwaway" (setq elpher-client-certificate (elpher-generate-throwaway-certificate))) - ("persistant" + ("persistent" (let* ((existing-certificates (elpher-list-existing-certificates)) (file-base (completing-read "Nickname for new or existing certificate (autocompletes, empty response aborts): " @@ -1218,7 +1231,7 @@ that the response was malformed." file-base))) (message "New key and self-signed certificate written to %s" elpher-certificate-directory) - (elpher-generate-permanent-certificate file-base common-name))) + (elpher-generate-persistent-certificate file-base common-name))) ("install" (let* ((cert-file (read-file-name "Certificate file: " nil nil t)) (key-file (read-file-name "Key file: " nil nil t))) @@ -1363,17 +1376,20 @@ treatment that a separate function is warranted." The gemini map file line describing the header is given by HEADER-LINE." (when (string-match "^\\(#+\\)[ \t]*" header-line) - (let ((level (length (match-string 1 header-line))) - (header (substring header-line (match-end 0)))) + (let* ((level (length (match-string 1 header-line))) + (header (substring header-line (match-end 0))) + (face (pcase level + (1 'elpher-gemini-heading1) + (2 'elpher-gemini-heading2) + (3 'elpher-gemini-heading3) + (_ 'default))) + (fill-column (/ (* fill-column + (font-get (font-spec :name (face-font 'default)) :size)) + (font-get (font-spec :name (face-font face)) :size)))) (unless (display-graphic-p) (insert (make-string level ?#) " ")) - (insert (propertize header 'face - (pcase level - (1 'elpher-gemini-heading1) - (2 'elpher-gemini-heading2) - (3 'elpher-gemini-heading3) - (_ 'default))) - "\n")))) + (insert (propertize header 'face face)) + (newline)))) (defun elpher-gemini-insert-text (text-line) "Insert a plain non-preformatted TEXT-LINE into a text/gemini document.