X-Git-Url: https://thelambdalab.xyz/gitweb/index.cgi?p=elpher.git;a=blobdiff_plain;f=elpher.el;h=53ca1e4470a54c79739f7d319dfedb29f729c800;hp=c57df7dcd60038e4cb8b1ce6f4c8af4f766e0c4a;hb=HEAD;hpb=9213f564dcae90f74366bd99f28640d0c62aa89b diff --git a/elpher.el b/elpher.el index c57df7d..c3c3dc7 100644 --- a/elpher.el +++ b/elpher.el @@ -1,28 +1,12 @@ ;;; elpher.el --- A friendly gopher and gemini client -*- lexical-binding: t -*- -;; Copyright (C) 2021 Jens Östlund -;; Copyright (C) 2021 F. Jason Park -;; Copyright (C) 2021 Christopher Brannon -;; Copyright (C) 2021 Omar Polo -;; Copyright (C) 2021 Noodles! -;; Copyright (C) 2021 Abhiseck Paira -;; Copyright (C) 2021 Daniel Semyonov -;; Copyright (C) 2020-2021 Alex Schroeder -;; Copyright (C) 2020 Zhiwei Chen -;; Copyright (C) 2020 condy0919 -;; Copyright (C) 2020 Alexis -;; Copyright (C) 2020 Étienne Deparis -;; Copyright (C) 2020 Simon Nicolussi -;; Copyright (C) 2020 Michel Alexandre Salim -;; Copyright (C) 2020 Koushk Roy -;; Copyright (C) 2020 Vee -;; Copyright (C) 2020 Simon South -;; Copyright (C) 2019-2021 Tim Vaughan +;; Copyright (C) 2019-2023 Tim Vaughan +;; Copyright (C) 2020-2022 Elpher contributors (See info manual for full list) ;; Author: Tim Vaughan ;; Created: 11 April 2019 -;; Version: 3.2.2 -;; Keywords: comm gopher +;; Version: 3.6.0 +;; Keywords: comm gopher gemini ;; Homepage: https://thelambdalab.xyz/elpher ;; Package-Requires: ((emacs "27.1")) @@ -82,11 +66,12 @@ (require 'gnutls) (require 'socks) (require 'bookmark) +(require 'rx) ;;; Global constants ;; -(defconst elpher-version "3.2.2" +(defconst elpher-version "3.6.0" "Current version of elpher.") (defconst elpher-margin-width 6 @@ -128,11 +113,12 @@ (declare-function org-link-store-props "ol") (declare-function org-link-set-parameters "ol") (defvar ansi-color-context) + (defvar xterm-color--current-fg) + (defvar xterm-color--current-bg) (defvar bookmark-make-record-function) (defvar mu4e~view-beginning-of-url-regexp) (defvar eww-use-browse-url) - (defvar thing-at-point-uri-schemes) - (defvar xterm-color-preserve-properties)) + (defvar thing-at-point-uri-schemes)) ;;; Customization group @@ -166,8 +152,8 @@ plain text without user input." (defcustom elpher-filter-ansi-from-text nil "If non-nil, filter ANSI escape sequences from text. -The default behaviour is to use the ansi-color package to interpret these -sequences." +The default behaviour is to use the ansi-color package (or xterm-color if it is +available) to interpret these sequences." :type '(boolean)) (defcustom elpher-certificate-directory @@ -237,6 +223,32 @@ Emacs bookmark menu being accessible via \\[elpher-show-bookmarks] from the start page." :type '(string)) +(defcustom elpher-gemini-hide-preformatted nil + "Cause elpher to hide preformatted gemini text by default. +When this option is enabled, preformatted text in text/gemini documents +is replaced with a button which can be used to toggle its display. + +This is intended to improve accessibility, as preformatted text often +includes art which can be difficult for screen readers to interpret +meaningfully." + :type '(boolean)) + +(defcustom elpher-gemini-preformatted-toggle-bullet "‣ " + "Margin symbol used to distinguish the preformatted text toggle." + :type '(string)) + +(defcustom elpher-gemini-preformatted-toggle-label "[Toggle Preformatted Text]" + "Label of button used to toggle formatted text." + :type '(string)) + +(defcustom elpher-certificate-map nil + "Register client certificates to be used for gemini URLs. +This variable contains an alist representing a mapping between gemini +URLs and the names of client certificates which will be automatically +activated for those URLs. Beware that the certificates will also be +active for all subdirectories of the given URLs." + :type '(alist :key-type string :value-type string)) + ;; Face customizations (defgroup elpher-faces nil @@ -307,14 +319,18 @@ the start page." '((t :inherit bold :height 1.2)) "Face used for gemini heading level 3.") -(defface elpher-gemini-preformatted - '((t :inherit fixed-pitch)) - "Face used for pre-formatted gemini text blocks.") - (defface elpher-gemini-quoted '((t :inherit font-lock-doc-face)) "Face used for gemini quoted texts.") +(defface elpher-gemini-preformatted + '((t :inherit default)) + "Face used for gemini preformatted text.") + +(defface elpher-gemini-preformatted-toggle + '((t :inherit button)) + "Face used for buttons used to toggle display of preformatted text.") + ;;; Model ;; @@ -360,7 +376,7 @@ is not explicitly given." (defun elpher-remove-redundant-ports (address) "Remove redundant port specifiers from ADDRESS. -Here 'redundant' means that the specified port matches the default +Here `redundant' means that the specified port matches the default for that protocol, eg 70 for gopher." (if (and (not (elpher-address-about-p address)) (eq (url-portspec address) ; (url-port) is too slow! @@ -422,11 +438,11 @@ address refers to, via the table `elpher-type-map'." (_ 'other-url))) (defun elpher-address-about-p (address) - "Return non-nil if ADDRESS is an about address." + "Return non-nil if ADDRESS is an about address." (pcase (elpher-address-type address) (`(about ,_) t))) (defun elpher-address-gopher-p (address) - "Return non-nill if ADDRESS object is a gopher address." + "Return non-nil if ADDRESS object is a gopher address." (pcase (elpher-address-type address) (`(gopher ,_) t))) (defun elpher-address-protocol (address) @@ -440,7 +456,21 @@ For gopher addresses this is a combination of the selector type and selector." (defun elpher-address-host (address) "Retrieve host from ADDRESS object." - (url-host address)) + (pcase (url-host address) + ;; The following strips out square brackets which sometimes enclose IPv6 + ;; addresses. Doing this here rather than at the parsing stage may seem + ;; weird, but this lets us way we avoid having to muck with both URL parsing + ;; and reconstruction. It's also more efficient, as this method is not + ;; called during page rendering. + ((rx (: "[" (let ipv6 (* (not "]"))) "]")) + ipv6) + ;; The following is a work-around for a parsing bug that causes + ;; URLs with empty (but not absent, see RFC 1738) usernames to have + ;; @ prepended to the hostname. + ((rx (: "@" (let rest (+ anything)))) + rest) + (addr + addr))) (defun elpher-address-user (address) "Retrieve user from ADDRESS object." @@ -448,8 +478,10 @@ For gopher addresses this is a combination of the selector type and selector." (defun elpher-address-port (address) "Retrieve port from ADDRESS object. -If no address is defined, returns 0. (This is for compatibility with the URL library.)" - (url-port address)) +If no address is defined, returns 0. (This is for compatibility with +the URL library.)" + (let ((port (url-portspec address))) ; (url-port) is too slow! + (if port port 0))) (defun elpher-gopher-address-selector (address) "Retrieve gopher selector from ADDRESS object." @@ -547,7 +579,7 @@ This variable is used by `elpher-show-visited-pages'.") (defun elpher-visit-page (page &optional renderer no-history) "Visit PAGE using its own renderer or RENDERER, if non-nil. Additionally, push PAGE onto the history stack and the list of -previously-visited pages,unless NO-HISTORY is non-nil." +previously-visited pages, unless NO-HISTORY is non-nil." (elpher-save-pos) (elpher-process-cleanup) (unless no-history @@ -601,7 +633,7 @@ previously-visited pages,unless NO-HISTORY is non-nil." (goto-char (point-min))))) (defun elpher-get-default-url-scheme () - "Suggest a default URL scheme to use for visiting addresses based on the current page." + "Suggest default URL scheme for visiting addresses based on the current page." (if elpher-current-page (let* ((address (elpher-page-address elpher-current-page)) (current-type (elpher-address-type address))) @@ -609,8 +641,6 @@ previously-visited pages,unless NO-HISTORY is non-nil." ((or (and 'file (guard (not elpher-history))) `(about ,_)) elpher-default-url-type) - (`(about ,_) - elpher-default-url-type) (_ (url-type address)))) elpher-default-url-type)) @@ -645,7 +675,9 @@ previously-visited pages,unless NO-HISTORY is non-nil." ;; avoid resetting buffer-local variables (elpher-mode)) (let ((inhibit-read-only t) - (ansi-color-context nil)) ;; clean ansi interpreter state + (ansi-color-context nil)) ;; clean ansi interpreter state (also next 2 lines) + (setq-local xterm-color--current-fg nil) + (setq-local xterm-color--current-bg nil) (setq-local network-security-level (default-value 'network-security-level)) (erase-buffer) @@ -667,6 +699,57 @@ If LINE is non-nil, replace that line instead." (replace-match string)) (set-match-data data)))))) +;;; Link button definitions +;; + +(defvar elpher-link-keymap + (let ((map (make-sparse-keymap))) + (keymap-set map "S-" 'ignore) ;Prevent buffer face popup + (keymap-set map "S-" #'elpher--open-link-new-buffer-mouse) + (keymap-set map "S-" #'elpher--open-link-new-buffer) + (set-keymap-parent map button-map) + map)) + +(defun elpher--click-link (button) + "Function called when the gopher link BUTTON is activated." + (let ((page (button-get button 'elpher-page))) + (elpher-visit-page page))) + +(defun elpher--open-link-new-buffer () + "Internal function used by Elpher to open links in a new buffer." + (interactive) + (let ((page (button-get (button-at (point)) 'elpher-page)) + (new-buf (generate-new-buffer (default-value 'elpher-buffer-name)))) + (pop-to-buffer new-buf) + (elpher-mode) + (elpher-visit-page page))) + +(defun elpher--open-link-new-buffer-mouse (event) + "Internal function used by Elpher to open links in a new buffer. +The EVENT argument is the mouse event which caused this function to be +called." + (interactive "e") + (mouse-set-point event) + (elpher--open-link-new-buffer)) + +(defun elpher--page-button-help (_window buffer pos) + "Function called by Emacs to generate mouse-over text. +The arguments specify the BUFFER and the POS within the buffer of the item +for which help is required. The function returns the help to be +displayed. The _WINDOW argument is currently unused." + (with-current-buffer buffer + (let ((button (button-at pos))) + (when button + (let* ((page (button-get button 'elpher-page)) + (address (elpher-page-address page))) + (format "mouse-1, RET: open '%s'" (elpher-address-to-url address))))))) + +(define-button-type 'elpher-link + 'action #'elpher--click-link + 'keymap elpher-link-keymap + 'follow-link t + 'help-echo #'elpher--page-button-help + 'face 'button) ;;; Text Processing ;; @@ -703,14 +786,12 @@ away CRs and any terminating period." (let ((page (elpher-page-from-url (substring-no-properties (match-string 0))))) (make-text-button (match-beginning 0) (match-end 0) - 'elpher-page page - 'action #'elpher-click-link - 'follow-link t - 'help-echo #'elpher--page-button-help - 'face 'button))) + 'elpher-page page + :type 'elpher-link))) (buffer-string))) -;;; ANSI colors or XTerm colors (application and filtering) + +;; ANSI colors or XTerm colors (application and filtering) (or (require 'xterm-color nil t) (require 'ansi-color)) @@ -729,17 +810,25 @@ away CRs and any terminating period." #'ansi-color-apply) "A function to apply ANSI escape sequences.") -;;; Processing text for display +(defun elpher-text-has-ansi-escapes-p (string) + "Return non-nil if STRING includes an ANSI escape code." + (save-match-data + (string-match "\x1b\\[" string))) + + +;; Processing text for display (defun elpher-process-text-for-display (string) "Perform any desired processing of STRING prior to display as text. Currently includes buttonifying URLs and processing ANSI escape codes." - (elpher-buttonify-urls (if elpher-filter-ansi-from-text - (elpher-color-filter-apply string) - (elpher-color-apply string)))) + (elpher-buttonify-urls (if (elpher-text-has-ansi-escapes-p string) + (if elpher-filter-ansi-from-text + (elpher-color-filter-apply string) + (elpher-color-apply string)) + string))) -;;; Network error reporting +;;; General network communication ;; (defun elpher-network-error (address error) @@ -753,9 +842,6 @@ ERROR can be either an error object or a string." "Press 'u' to return to the previous page."))) -;;; General network communication -;; - (defvar elpher-network-timer nil "Timer used for network connections.") @@ -840,7 +926,8 @@ the host operating system and the local network capabilities.)" nil force-ipv4)) (t (elpher-network-error address "Connection time-out.")))))) - (proc (if socks (socks-open-network-stream "elpher-process" nil host service) + (proc (if socks + (socks-open-network-stream "elpher-process" nil host service) (make-network-process :name "elpher-process" :host host :family (and (or force-ipv4 @@ -854,6 +941,7 @@ the host operating system and the local network capabilities.)" (cons 'gnutls-x509pki (apply #'gnutls-boot-parameters gnutls-params))))))) + (process-put proc 'elpher-buffer (current-buffer)) (setq elpher-network-timer timer) (set-process-coding-system proc 'binary 'binary) (set-process-query-on-exit-flag proc nil) @@ -897,17 +985,19 @@ the host operating system and the local network capabilities.)" 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)) + (with-current-buffer (process-get proc 'elpher-buffer) + (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))))) (when socks - (if use-tls (apply #'gnutls-negotiate :process proc gnutls-params)) + (if use-tls + (apply #'gnutls-negotiate :process proc gnutls-params)) (funcall (process-sentinel proc) proc "open\n"))) (error (elpher-process-cleanup) @@ -917,7 +1007,8 @@ the host operating system and the local network capabilities.)" ;;; Client-side TLS Certificate Management ;; -(defun elpher-generate-certificate (common-name key-file cert-file &optional temporary) +(defun elpher-generate-certificate (common-name key-file cert-file url-prefix + &optional temporary) "Generate a key and a self-signed client TLS certificate using openssl. The Common Name field of the certificate is set to COMMON-NAME. The @@ -931,7 +1022,8 @@ when the certificate is no longer needed for the current session. Otherwise, the certificate will be given a 100 year expiration period and the files will not be deleted. -The function returns a list containing the current host name, the +The function returns a list containing the URL-PREFIX of addresses +for which the certificate should be used in this session, the temporary flag, and the key and cert file names in the form required by `gnutls-boot-parameters`." (let ((exp-key-file (expand-file-name key-file)) @@ -945,56 +1037,70 @@ by `gnutls-boot-parameters`." "-subj" (concat "/CN=" common-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)) + (list url-prefix temporary exp-key-file exp-cert-file)) (error (message "Check that openssl is installed, or customize `elpher-openssl-command`.") (error "Program 'openssl', required for certificate generation, not found"))))) -(defun elpher-generate-throwaway-certificate () +(defun elpher-generate-throwaway-certificate (url-prefix) "Generate and return details of a throwaway certificate. The key and certificate files will be deleted when they are no -longer needed for this session." +longer needed for this session. + +The certificate will be marked as applying to all addresses with URLs +starting with URL-PREFIX." (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))) + (elpher-generate-certificate file-base key-file cert-file url-prefix t))) -(defun elpher-generate-persistent-certificate (file-base common-name) +(defun elpher-generate-persistent-certificate (file-base common-name url-prefix) "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. -The key and certificate files are written to in `elpher-certificate-directory'." +The key and certificate files are written to in `elpher-certificate-directory'. + +In this session, the certificate will remain active for all addresses +having URLs starting with URL-PREFIX." (let* ((key-file (concat elpher-certificate-directory file-base ".key")) (cert-file (concat elpher-certificate-directory file-base ".crt"))) - (elpher-generate-certificate common-name key-file cert-file))) + (elpher-generate-certificate common-name key-file cert-file url-prefix))) -(defun elpher-get-existing-certificate (file-base) +(defun elpher-get-existing-certificate (file-base url-prefix) "Return a certificate object corresponding to an existing certificate. It is assumed that the key files FILE-BASE.key and FILE-BASE.crt exist in -the directory `elpher-certificate-directory'." +the directory `elpher-certificate-directory'. + +In this session, the certificate will remain active for all addresses +having URLs starting with URL-PREFIX." (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)) + (list url-prefix nil (expand-file-name key-file) (expand-file-name cert-file)))) -(defun elpher-install-and-use-existing-certificate (key-file-src cert-file-src file-base) +(defun elpher-install-certificate (key-file-src cert-file-src file-base url-prefix) "Install a key+certificate file pair in `elpher-certificate-directory'. The strings KEY-FILE-SRC and CERT-FILE-SRC are the existing key and certificate files to install. The argument FILE-BASE is used as the -base for the installed key and certificate files." +base for the installed key and certificate files. + +In this session, the certificate will remain active for all addresses +having URLs starting with URL-PREFIX." (let* ((key-file (concat elpher-certificate-directory file-base ".key")) (cert-file (concat elpher-certificate-directory file-base ".crt"))) (if (or (file-exists-p key-file) (file-exists-p cert-file)) (error "A certificate with base name %s is already installed" file-base)) + (unless (and (file-exists-p key-file-src) + (file-exists-p cert-file-src)) + (error "Either of the key or certificate files do not exist")) (copy-file key-file-src key-file) (copy-file cert-file-src cert-file) - (list (elpher-address-host (elpher-page-address elpher-current-page)) + (list url-prefix nil (expand-file-name key-file) (expand-file-name cert-file)))) @@ -1020,7 +1126,7 @@ are also deleted." (when (cadr elpher-client-certificate) (delete-file (elt elpher-client-certificate 2)) (delete-file (elt elpher-client-certificate 3))) - (setq elpher-client-certificate nil) + (setq-local elpher-client-certificate nil) (if (called-interactively-p 'any) (message "Client certificate forgotten."))))) @@ -1028,14 +1134,14 @@ are also deleted." "Retrieve the `gnutls-boot-parameters'-compatable keylist. This is obtained from the client certificate described by -`elpher-current-certificate', if one is available and the host for -that certificate matches the host in ADDRESS. +`elpher-current-certificate', if one is available and the +URL prefix for that certificate matches ADDRESS. -If `elpher-current-certificate' is non-nil, and its host name doesn't +If `elpher-current-certificate' is non-nil, and its URL prefix doesn't match that of ADDRESS, the certificate is forgotten." (if elpher-client-certificate - (if (string= (car elpher-client-certificate) - (elpher-address-host address)) + (if (string-prefix-p (car elpher-client-certificate) + (elpher-address-to-url address)) (list (cddr elpher-client-certificate)) (elpher-forget-current-certificate) (message "Disabling client certificate for new host") @@ -1071,10 +1177,12 @@ once they are retrieved from the gopher server." (error (elpher-network-error address the-error)))))) -;; Index rendering + +;;; Gopher index rendering +;; (defun elpher-insert-margin (&optional type-name) - "Insert index margin, optionally containing the TYPE-NAME, into the current buffer." + "Insert index margin, optionally containing the TYPE-NAME, into current buffer." (if type-name (progn (insert (format (concat "%" (number-to-string (- elpher-margin-width 1)) "s") @@ -1085,23 +1193,11 @@ once they are retrieved from the gopher server." (insert " ")) (insert (make-string elpher-margin-width ?\s)))) -(defun elpher--page-button-help (_window buffer pos) - "Function called by Emacs to generate mouse-over text. -The arguments specify the BUFFER and the POS within the buffer of the item -for which help is required. The function returns the help to be -displayed. The _WINDOW argument is currently unused." - (with-current-buffer buffer - (let ((button (button-at pos))) - (when button - (let* ((page (button-get button 'elpher-page)) - (address (elpher-page-address page))) - (format "mouse-1, RET: open '%s'" (elpher-address-to-url address))))))) - (defun elpher-insert-index-record (display-string &optional address) "Function to insert an index record into the current buffer. The contents of the record are dictated by DISPLAY-STRING and ADDRESS. If ADDRESS is not supplied or nil the record is rendered as an -'information' line." +`information' line." (let* ((type (if address (elpher-address-type address) nil)) (type-map-entry (cdr (assoc type elpher-type-map)))) (if type-map-entry @@ -1113,9 +1209,7 @@ If ADDRESS is not supplied or nil the record is rendered as an (insert-text-button filtered-display-string 'face face 'elpher-page page - 'action #'elpher-click-link - 'follow-link t - 'help-echo #'elpher--page-button-help)) + :type 'elpher-link)) (pcase type ('nil ;; Information (elpher-insert-margin) @@ -1128,11 +1222,6 @@ If ADDRESS is not supplied or nil the record is rendered as an 'face 'elpher-unknown))))) (insert "\n"))) -(defun elpher-click-link (button) - "Function called when the gopher link BUTTON is activated (via mouse or keypress)." - (let ((page (button-get button 'elpher-page))) - (elpher-visit-page page))) - (defun elpher-render-index (data &optional _mime-type-string) "Render DATA as an index. MIME-TYPE-STRING is unused." (elpher-with-clean-buffer @@ -1155,7 +1244,9 @@ If ADDRESS is not supplied or nil the record is rendered as an (elpher-cache-content (elpher-page-address elpher-current-page) (buffer-string))))) -;; Text rendering + +;;; Gopher text rendering +;; (defun elpher-render-text (data &optional _mime-type-string) "Render DATA as text. MIME-TYPE-STRING is unused." @@ -1167,7 +1258,9 @@ If ADDRESS is not supplied or nil the record is rendered as an (elpher-page-address elpher-current-page) (buffer-string))))) -;; Image retrieval + +;;; Image retrieval +;; (defun elpher-render-image (data &optional _mime-type-string) "Display DATA as image. MIME-TYPE-STRING is unused." @@ -1188,7 +1281,9 @@ If ADDRESS is not supplied or nil the record is rendered as an (elpher-restore-pos)))) (elpher-render-download data)))) -;; Search retrieval and rendering + +;;; Gopher search retrieval and rendering +;; (defun elpher-get-gopher-query-page (renderer) "Getter for gopher addresses requiring input. @@ -1217,7 +1312,9 @@ The response is rendered using the rendering function RENDERER." (if aborted (elpher-visit-previous-page)))))) -;; Raw server response rendering + +;;; Raw server response rendering +;; (defun elpher-render-raw (data &optional mime-type-string) "Display raw DATA in buffer. MIME-TYPE-STRING is also displayed if provided." @@ -1230,7 +1327,9 @@ The response is rendered using the rendering function RENDERER." (goto-char (point-min))) (message "Displaying raw server response. Reload or redraw to return to standard view."))) -;; File save "rendering" + +;;; File save "rendering" +;; (defun elpher-render-download (data &optional _mime-type-string) "Save DATA to file. MIME-TYPE-STRING is unused." @@ -1252,7 +1351,9 @@ The response is rendered using the rendering function RENDERER." (insert data))) (message (format "Saved to file %s." filename)))))) -;; HTML rendering + +;;; HTML rendering +;; (defun elpher-render-html (data &optional _mime-type-string) "Render DATA as HTML using shr. MIME-TYPE-STRING is unused." @@ -1264,7 +1365,9 @@ The response is rendered using the rendering function RENDERER." (libxml-parse-html-region (point-min) (point-max))))) (shr-insert-document dom))))) -;; Gemini page retrieval + +;;; Gemini page retrieval +;; (defvar elpher-gemini-redirect-chain) @@ -1302,14 +1405,17 @@ that the response was malformed." (elpher-with-clean-buffer (insert "Gemini server is requesting input.")) (let* ((query-string - (if (eq (elt response-code 1) ?1) - (read-passwd (concat response-meta ": ")) - (read-string (concat response-meta ": ")))) + (with-local-quit + (if (eq (elt response-code 1) ?1) + (read-passwd (concat response-meta ": ")) + (read-string (concat response-meta ": "))))) (query-address (seq-copy (elpher-page-address elpher-current-page))) (old-fname (url-filename query-address))) - (setf (url-filename query-address) - (concat old-fname "?" (url-build-query-string `((,query-string))))) - (elpher-get-gemini-response query-address renderer))) + (if (not query-string) + (elpher-visit-previous-page) + (setf (url-filename query-address) + (concat old-fname "?" (url-build-query-string `((,query-string))))) + (elpher-get-gemini-response query-address renderer)))) (?2 ; Normal response (funcall renderer response-body response-meta)) (?3 ; Redirect @@ -1338,28 +1444,55 @@ that the response was malformed." (insert "Gemini server is requesting a valid TLS certificate:\n\n")) (auto-fill-mode 1) (elpher-gemini-insert-text response-meta)) - (let ((chosen-certificate (elpher-choose-client-certificate))) + (let ((chosen-certificate + (with-local-quit + (elpher-acquire-client-certificate + (elpher-address-to-url (elpher-page-address elpher-current-page)))))) (unless chosen-certificate (error "Gemini server requires a client certificate and none was provided")) - (setq elpher-client-certificate chosen-certificate)) + (setq-local elpher-client-certificate chosen-certificate)) (elpher-with-clean-buffer) (elpher-get-gemini-response (elpher-page-address elpher-current-page) renderer)) (_other (error "Gemini server response unknown: %s %s" response-code response-meta)))))) +(defun elpher-acquire-client-certificate (url-prefix) + "Select a pre-defined client certificate or prompt for one. +In this case, \"pre-defined\" means a certificate provided by +the `elpher-certificate-map' variable. + +For this session, the certificate will remain active for all addresses +having URLs begining with URL-PREFIX." + (let ((entry (assoc url-prefix + elpher-certificate-map + #'string-prefix-p))) + (if entry + (let ((cert-url-prefix (car entry)) + (cert-name (cadr entry))) + (message "Using certificate \"%s\" specified in elpher-certificate-map with prefix \"%s\"" + cert-name cert-url-prefix) + (elpher-get-existing-certificate cert-name cert-url-prefix)) + (elpher-prompt-for-client-certificate url-prefix)))) + (defun elpher--read-answer-polyfill (question answers) "Polyfill for `read-answer' in Emacs 26.1. QUESTION is a string containing a question, and ANSWERS -is a list of possible answers." - (completing-read question (mapcar 'identity answers))) +is a list of possible answers, or an alist whose keys +are the possible answers." + (completing-read question answers)) (if (fboundp 'read-answer) (defalias 'elpher-read-answer 'read-answer) (defalias 'elpher-read-answer 'elpher--read-answer-polyfill)) -(defun elpher-choose-client-certificate () - "Prompt for a client certificate to use to establish a TLS connection." + + +(defun elpher-prompt-for-client-certificate (url-prefix) + "Prompt for a client certificate to use to establish a TLS connection. + +In this session, the chosen certificate will remain active for all +addresses with URLs matching URL-PREFIX." (let* ((read-answer-short t)) (pcase (read-answer "What do you want to do? " '(("throwaway" ?t @@ -1369,7 +1502,7 @@ is a list of possible answers." ("abort" ?a "stop immediately"))) ("throwaway" - (setq elpher-client-certificate (elpher-generate-throwaway-certificate))) + (setq-local elpher-client-certificate (elpher-generate-throwaway-certificate url-prefix))) ("persistent" (let* ((existing-certificates (elpher-list-existing-certificates)) (file-base (completing-read @@ -1378,8 +1511,8 @@ is a list of possible answers." (if (string-empty-p (string-trim file-base)) nil (if (member file-base existing-certificates) - (setq elpher-client-certificate - (elpher-get-existing-certificate file-base)) + (setq-local elpher-client-certificate + (elpher-get-existing-certificate file-base url-prefix)) (pcase (read-answer "Generate new certificate or install externally-generated one? " '(("new" ?n "generate new certificate") @@ -1392,15 +1525,16 @@ is a list of possible answers." file-base))) (message "New key and self-signed certificate written to %s" elpher-certificate-directory) - (elpher-generate-persistent-certificate file-base common-name))) + (elpher-generate-persistent-certificate file-base + common-name + url-prefix))) ("install" (let* ((cert-file (read-file-name "Certificate file: " nil nil t)) (key-file (read-file-name "Key file: " nil nil t))) (message "Key and certificate installed in %s for future use" elpher-certificate-directory) - (elpher-install-and-use-existing-certificate key-file - cert-file - file-base))) + (elpher-install-certificate key-file cert-file file-base + url-prefix))) ("abort" nil)))))) ("abort" nil)))) @@ -1420,6 +1554,9 @@ is a list of possible answers." (error (elpher-network-error address the-error))))) +;;; Gemini page rendering +;; + (defun elpher-render-gemini (body &optional mime-type-string) "Render gemini response BODY with rendering MIME-TYPE-STRING." (if (not body) @@ -1499,12 +1636,18 @@ treatment that a separate function is warranted." (if (string-empty-p (url-filename address)) (setf (url-filename address) "/")) ;ensure empty filename is marked as absolute (setf (url-host address) (url-host current-address)) - (setf (url-fullness address) (url-host address)) ; set fullness to t if host is set - (setf (url-portspec address) (url-portspec current-address)) ; (url-port) too slow! - (unless (string-prefix-p "/" (url-filename address)) ;deal with relative links + (setf (url-fullness address) (url-host address)) ;set fullness to t if host is set + (setf (url-portspec address) (url-portspec current-address)) ;(url-port) too slow! + (cond + ((string-prefix-p "/" (url-filename address))) ;do nothing for absolute case + ((string-prefix-p "?" (url-filename address)) ;handle query-only links + (setf (url-filename address) + (concat (url-filename current-address) + (url-filename address)))) + (t ;deal with relative links (setf (url-filename address) (concat (file-name-directory (url-filename current-address)) - (url-filename address))))) + (url-filename address)))))) (when (url-host address) (setf (url-host address) (puny-encode-domain (url-host address)))) (unless (url-type address) @@ -1523,21 +1666,18 @@ treatment that a separate function is warranted." (type (if address (elpher-address-type address) nil)) (type-map-entry (cdr (assoc type elpher-type-map))) (fill-prefix (make-string (+ 1 (length elpher-gemini-link-string)) ?\s))) - (insert elpher-gemini-link-string) - (if type-map-entry - (let* ((face (elt type-map-entry 3)) - (display-string (or given-display-string - (elpher-address-to-iri address))) - (page (elpher-make-page display-string - address))) - (insert-text-button display-string - 'face face - 'elpher-page page - 'action #'elpher-click-link - 'follow-link t - 'help-echo #'elpher--page-button-help)) - (insert (propertize display-string 'face 'elpher-unknown))) - (newline))))) + (when type-map-entry + (insert elpher-gemini-link-string) + (let* ((face (elt type-map-entry 3)) + (display-string (or given-display-string + (elpher-address-to-iri address))) + (page (elpher-make-page display-string + address))) + (insert-text-button display-string + 'face face + 'elpher-page page + :type 'elpher-link)) + (newline)))))) (defun elpher-gemini-insert-header (header-line) "Insert header described by HEADER-LINE into a text/gemini document. @@ -1569,7 +1709,6 @@ This function uses Emacs' auto-fill to wrap text sensibly to a maximum width defined by `elpher-gemini-max-fill-width'." (string-match (rx (: line-start - (* (any " \t")) (optional (group (or (: "*" (+ (any " \t"))) (: ">" (* (any " \t")))))))) @@ -1587,34 +1726,77 @@ width defined by `elpher-gemini-max-fill-width'." (propertize text-line 'face 'elpher-gemini-quoted)) (t text-line)) text-line)) - (adaptive-fill-mode t) - ;; fill-prefix is important for adaptive-fill-mode: without - ;; it, multi-line list items are not indented correct - (fill-prefix (if (match-string 1 text-line) + (fill-prefix (if line-prefix (make-string (length (match-string 0 text-line)) ?\s) - nil))) + ""))) (insert (elpher-process-text-for-display processed-text-line)) (newline))) +(defun elpher-gemini-pref-expand-collapse (button) + "Function called when the preformatted text toggle BUTTON is activated." + (let ((id (button-get button 'pref-id))) + (if (invisible-p id) + (remove-from-invisibility-spec id) + (add-to-invisibility-spec id)) + (redraw-display))) + +(defun elpher-gemini-insert-preformatted-toggler (alt-text) + "Insert a button for toggling the visibility of preformatted text. +If non-nil, ALT-TEXT is displayed alongside the button." + (let* ((url-string (url-recreate-url (elpher-page-address elpher-current-page))) + (pref-id (intern (concat "pref-" + (number-to-string (point)) + "-" + url-string)))) + (insert elpher-gemini-preformatted-toggle-bullet) + (when alt-text + (insert (propertize (concat alt-text " ") + 'face 'elpher-gemin-preformatted))) + (insert-text-button elpher-gemini-preformatted-toggle-label + 'action #'elpher-gemini-pref-expand-collapse + 'pref-id pref-id + 'face 'elpher-gemini-preformatted-toggle) + (add-to-invisibility-spec pref-id) + (newline) + pref-id)) + +(defun elpher-gemini-insert-preformatted-line (line &optional pref-id) + "Insert a LINE of preformatted text. +PREF-ID is the value assigned to the \"invisible\" text attribute, which +can be used to toggle the display of the preformatted text." + (insert (propertize (concat (elpher-process-text-for-display + (propertize line 'face 'elpher-gemini-preformatted)) + "\n") + 'invisible pref-id + 'rear-nonsticky t))) + (defun elpher-render-gemini-map (data _parameters) "Render DATA as a gemini map file, PARAMETERS is currently unused." (elpher-with-clean-buffer - (let ((preformatted nil)) - (auto-fill-mode 1) + (auto-fill-mode 1) + (setq-local buffer-invisibility-spec nil) + (let ((preformatted nil) + (adaptive-fill-mode nil)) ;Prevent automatic setting of fill-prefix (setq-local fill-column (min (window-width) elpher-gemini-max-fill-width)) (dolist (line (split-string data "\n")) - (cond - ((string-prefix-p "```" line) (setq preformatted (not preformatted))) - (preformatted (insert (elpher-process-text-for-display - (propertize line 'face 'elpher-gemini-preformatted)) - "\n")) - ((string-prefix-p "=>" line) - (elpher-gemini-insert-link line)) - ((string-prefix-p "#" line) (elpher-gemini-insert-header line)) - (t (elpher-gemini-insert-text line))))) + (pcase line + ((rx (: string-start "```" (opt (let alt-text (+ any))))) + (setq preformatted + (if preformatted + nil + (if elpher-gemini-hide-preformatted + (elpher-gemini-insert-preformatted-toggler alt-text) + t)))) + ((guard preformatted) + (elpher-gemini-insert-preformatted-line line preformatted)) + ((pred (string-prefix-p "=>")) + (elpher-gemini-insert-link line)) + ((pred (string-prefix-p "#")) + (elpher-gemini-insert-header line)) + (_ (elpher-gemini-insert-text line)))) (elpher-cache-content (elpher-page-address elpher-current-page) - (buffer-string)))) + (buffer-string))))) (defun elpher-render-gemini-plain-text (data _parameters) "Render DATA as plain text file. PARAMETERS is currently unused." @@ -1625,6 +1807,7 @@ width defined by `elpher-gemini-max-fill-width'." (buffer-string)))) (defun elpher-build-current-imenu-index () + "Build imenu index for current elpher buffer." (save-excursion (goto-char (point-min)) (let ((match nil) @@ -1637,7 +1820,9 @@ width defined by `elpher-gemini-max-fill-width'." headers)) (reverse headers)))) -;; Finger page connection + +;;; Finger page connection +;; (defun elpher-get-finger-page (renderer) "Opens a finger connection to the current page address. @@ -1663,7 +1848,8 @@ The result is rendered using RENDERER." (elpher-network-error address the-error)))))) -;; Telnet page connection +;;; Telnet page connection +;; (defun elpher-get-telnet-page (renderer) "Opens a telnet connection to the current page address (RENDERER must be nil)." @@ -1679,10 +1865,12 @@ The result is rendered using RENDERER." (telnet host)))) -;; Other URL page opening +;;; Other URL page opening +;; (defun elpher-get-other-url-page (renderer) - "Getter which attempts to open the URL specified by the current page (RENDERER must be nil)." + "Getter which attempts to open the URL specified by the current page. +The RENDERER argument to this getter must be nil." (when renderer (elpher-visit-previous-page) (error "Command not supported for general URLs")) @@ -1694,7 +1882,9 @@ The result is rendered using RENDERER." (browse-web url) (browse-url url)))) -;; File page + +;;; File page +;; (defun elpher-get-file-page (renderer) "Getter which renders a local file using RENDERER. @@ -1703,10 +1893,10 @@ Assumes UTF-8 encoding for all text files." (filename (elpher-address-filename address))) (unless (file-exists-p filename) (elpher-visit-previous-page) - (error "File not found")) + (error "File not found")) (unless (file-readable-p filename) (elpher-visit-previous-page) - (error "Could not read from file")) + (error "Could not read from file")) (let ((body (with-temp-buffer (let ((coding-system-for-read 'binary) (coding-system-for-write 'binary)) @@ -1730,7 +1920,8 @@ Assumes UTF-8 encoding for all text files." (elpher-restore-pos)))) -;; Welcome page retrieval +;;; Welcome page retrieval +;; (defun elpher-get-welcome-page (renderer) "Getter which displays the welcome page (RENDERER must be nil)." @@ -1746,7 +1937,7 @@ Assumes UTF-8 encoding for all text files." "Default bindings:\n" "\n" " - TAB/Shift-TAB: next/prev item on current page\n" - " - RET/mouse-1: open item under cursor\n" + " - RET/mouse-1: open item under cursor (with Shift to open in new buffer)\n" " - m: select an item on current page by name (autocompletes)\n" " - u/mouse-3/U: return to previous page or to the start page\n" " - g: go to a particular address (gopher, gemini, finger)\n" @@ -1768,7 +1959,7 @@ Assumes UTF-8 encoding for all text files." (elpher-insert-index-record "Floodgap Systems Gopher Server" (elpher-make-gopher-address ?1 "" "gopher.floodgap.com" 70)) (elpher-insert-index-record "Project Gemini home page" - (elpher-address-from-url "gemini://gemini.circumlunar.space/")) + (elpher-address-from-url "gemini://geminiprotocol.net/")) (insert "\n" "Alternatively, select a search engine and enter some search terms:\n") (elpher-insert-index-record "Gopher Search Engine (Veronica-2)" @@ -1779,12 +1970,10 @@ Assumes UTF-8 encoding for all text files." "Your bookmarks are stored in your ") (insert-text-button "bookmark list" 'face 'link - 'action #'elpher-click-link - 'follow-link t - 'help-echo #'elpher--page-button-help 'elpher-page (elpher-make-page "Elpher Bookmarks" - (elpher-make-about-address 'bookmarks))) + (elpher-make-about-address 'bookmarks)) + :type 'elpher-link) (insert ".\n") (insert (propertize "(Bookmarks from legacy elpher-bookmarks files will be automatically imported.)\n" @@ -1817,12 +2006,15 @@ Assumes UTF-8 encoding for all text files." 'help-echo help-string)) (insert "\n") (insert (propertize - (concat "(These documents should be available if you have installed Elpher \n" - " using MELPA. Otherwise you may have to install the manual yourself.)\n") + (concat "(These documents should be available if you have installed Elpher\n" + " from MELPA or non-GNU ELPA. Otherwise you may have to install the\n" + " manual yourself.)\n") 'face 'shadow)) (elpher-restore-pos))) -;; History page retrieval + +;;; History page retrieval +;; (defun elpher-show-history () "Show the current contents of elpher's history stack. @@ -1879,6 +2071,7 @@ This is rendered using `elpher-get-visited-pages-page' via `elpher-type-map'." ;;; Bookmarks +;; ;; This code allows Elpher to use the standard Emacs bookmarks: `C-x r ;; m' to add a bookmark, `C-x r l' to list bookmarks (which is where @@ -1923,10 +2116,11 @@ then making that buffer the current buffer. It should not switch to the buffer." (let* ((url (cdr (assq 'location bookmark))) (cleaned-url (string-trim url)) - (page (elpher-page-from-url cleaned-url))) + (page (elpher-page-from-url cleaned-url)) + (buffer (get-buffer-create elpher-buffer-name))) (elpher-with-clean-buffer (elpher-visit-page page)) - (set-buffer (get-buffer elpher-buffer-name)) + (set-buffer buffer) nil)) (defun elpher-bookmark-link () @@ -2080,6 +2274,11 @@ supports the old protocol elpher, where the link is self-contained." :export (lambda (link description format _plist) (elpher-org-export-link link description format "gopher")) :follow (lambda (link _arg) (elpher-org-follow-link link "gopher"))) + (org-link-set-parameters + "gophers" + :export (lambda (link description format _plist) + (elpher-org-export-link link description format "gophers")) + :follow (lambda (link _arg) (elpher-org-follow-link link "gophers"))) (org-link-set-parameters "finger" :export (lambda (link description format _plist) @@ -2088,7 +2287,7 @@ supports the old protocol elpher, where the link is self-contained." (add-hook 'org-mode-hook #'elpher-org-mode-integration) -;;; Browse URL +;; Browse URL ;;;###autoload (defun elpher-browse-url-elpher (url &rest _args) @@ -2101,36 +2300,39 @@ supports the old protocol elpher, where the link is self-contained." (if (boundp 'browse-url-default-handlers) (add-to-list 'browse-url-default-handlers - '("^\\(gopher\\|finger\\|gemini\\)://" . elpher-browse-url-elpher)) + '("^\\(gopher\\|gophers\\|finger\\|gemini\\)://" . elpher-browse-url-elpher)) ;; Patch `browse-url-browser-function' for older ones. The value of ;; that variable is `browse-url-default-browser' by default, so - ;; that's the function that gets advised. - (advice-add browse-url-browser-function :before-while - (lambda (url &rest _args) - "Handle gemini, gopher, and finger schemes using Elpher." - (let ((scheme (downcase (car (split-string url ":" t))))) - (if (member scheme '("gemini" "gopher" "finger")) - ;; `elpher-go' always returns nil, which will stop the - ;; advice chain here in a before-while - (elpher-go url) - ;; chain must continue, then return t. - t))))) + ;; that's the function that gets advised. If the value is an alist, + ;; however, we don't know what to do. Better not interfere? + (when (and (symbolp browse-url-browser-function) + (fboundp browse-url-browser-function)) + (advice-add browse-url-browser-function :before-while + (lambda (url &rest _args) + "Handle gemini, gopher, and finger schemes using Elpher." + (let ((scheme (downcase (car (split-string url ":" t))))) + (if (member scheme '("gemini" "gopher" "gophers" "finger")) + ;; `elpher-go' always returns nil, which will stop the + ;; advice chain here in a before-while + (elpher-go url) + ;; chain must continue, then return t. + t)))))) ;; Register "gemini://" as a URI scheme so `browse-url' does the right thing (with-eval-after-load 'thingatpt (add-to-list 'thing-at-point-uri-schemes "gemini://")) -;;; Mu4e: +;; Mu4e: ;; Make mu4e aware of the gemini world (setq mu4e~view-beginning-of-url-regexp - "\\(?:https?\\|gopher\\|finger\\|gemini\\)://\\|mailto:") + "\\(?:https?\\|gopher\\|gophers\\|finger\\|gemini\\)://\\|mailto:") -;;; eww: +;; eww: ;; Let elpher handle gemini, gopher links in eww buffer. (setq eww-use-browse-url - "\\`mailto:\\|\\(\\`gemini\\|\\`gopher\\|\\`finger\\)://") + "\\`mailto:\\|\\(\\`gemini\\|\\`gopher\\|\\`gophers\\|\\`finger\\)://") ;;; Interactive procedures @@ -2149,31 +2351,44 @@ supports the old protocol elpher, where the link is self-contained." (defun elpher-follow-current-link () "Open the link or url at point." (interactive) - (push-button)) + (elpher--click-link (button-at (point)))) + +(defun elpher-follow-current-link-new-buffer () + "Open the link or url at point." + (interactive) + (elpher--open-link-new-buffer)) ;;;###autoload (defun elpher-go (host-or-url) "Go to a particular gopher site HOST-OR-URL. When run interactively HOST-OR-URL is read from the minibuffer." (interactive (list - (read-string (format "Visit URL (default scheme %s): " (elpher-get-default-url-scheme))))) + (read-string (format "Visit URL (default scheme %s): " + (elpher-get-default-url-scheme))))) (let ((trimmed-host-or-url (string-trim host-or-url))) (unless (string-empty-p trimmed-host-or-url) (let ((page (elpher-page-from-url trimmed-host-or-url (elpher-get-default-url-scheme)))) - (switch-to-buffer elpher-buffer-name) + (unless (get-buffer-window elpher-buffer-name t) + (switch-to-buffer elpher-buffer-name)) (elpher-with-clean-buffer (elpher-visit-page page)) nil)))) ; non-nil value is displayed by eshell (defun elpher-go-current () - "Go to a particular site read from the minibuffer, initialized with the current URL." + "Go to a particular URL which is read from the minibuffer. +Unlike `elpher-go', the reader is initialized with the URL of the +current page." (interactive) (let* ((address (elpher-page-address elpher-current-page)) - (url (read-string (format "Visit URL (default scheme %s): " (elpher-get-default-url-scheme)) + (url (read-string (format "Visit URL (default scheme %s): " + (elpher-get-default-url-scheme)) (elpher-address-to-url address)))) - (unless (string-empty-p (string-trim url)) - (elpher-visit-page (elpher-page-from-url url))))) + (let ((trimmed-url (string-trim url))) + (unless (string-empty-p trimmed-url) + (elpher-with-clean-buffer + (elpher-visit-page + (elpher-page-from-url trimmed-url (elpher-get-default-url-scheme)))))))) (defun elpher-redraw () "Redraw current page." @@ -2236,9 +2451,7 @@ When run interactively HOST-OR-URL is read from the minibuffer." (if (elpher-address-about-p (elpher-page-address elpher-current-page)) (error "Cannot download %s" (elpher-page-display-string elpher-current-page)) - (elpher-visit-page (elpher-make-page - (elpher-page-display-string elpher-current-page) - (elpher-page-address elpher-current-page)) + (elpher-visit-page elpher-current-page #'elpher-render-download t))) @@ -2281,8 +2494,12 @@ When run interactively HOST-OR-URL is read from the minibuffer." (defun elpher-info-page (page) "Display URL of PAGE in minibuffer." - (let ((address (elpher-page-address page))) - (message "%s" (elpher-address-to-iri address)))) + (let* ((address (elpher-page-address page)) + (url (elpher-address-to-url address)) + (iri (elpher-address-to-iri address))) + (if (equal url iri) + (message "%s" url) + (message "%s (Raw: %s)" iri url)))) (defun elpher-info-link () "Display information on page corresponding to link at point." @@ -2369,36 +2586,35 @@ When run interactively HOST-OR-URL is read from the minibuffer." (define-key map (kbd "F") 'elpher-forget-current-certificate) (when (fboundp 'evil-define-key*) (evil-define-key* - 'motion map - (kbd "TAB") 'elpher-next-link - (kbd "C-") 'elpher-follow-current-link - (kbd "C-t") 'elpher-back - (kbd "u") 'elpher-back - (kbd "-") 'elpher-back - (kbd "^") 'elpher-back - [mouse-3] 'elpher-back - (kbd "U") 'elpher-back-to-start - (kbd "g") 'elpher-go - (kbd "o") 'elpher-go-current - (kbd "O") 'elpher-root-dir - (kbd "s") 'elpher-show-history - (kbd "S") 'elpher-show-visited-pages - (kbd "r") 'elpher-redraw - (kbd "R") 'elpher-reload - (kbd "T") 'elpher-toggle-tls - (kbd ".") 'elpher-view-raw - (kbd "d") 'elpher-download - (kbd "D") 'elpher-download-current - (kbd "m") 'elpher-jump - (kbd "i") 'elpher-info-link - (kbd "I") 'elpher-info-current - (kbd "c") 'elpher-copy-link-url - (kbd "C") 'elpher-copy-current-url - (kbd "a") 'elpher-bookmark-link - (kbd "A") 'elpher-bookmark-current - (kbd "B") 'elpher-show-bookmarks - (kbd "!") 'elpher-set-gopher-coding-system - (kbd "F") 'elpher-forget-current-certificate)) + 'motion map + (kbd "TAB") 'elpher-next-link + (kbd "C-t") 'elpher-back + (kbd "u") 'elpher-back + (kbd "-") 'elpher-back + (kbd "^") 'elpher-back + [mouse-3] 'elpher-back + (kbd "U") 'elpher-back-to-start + (kbd "g") 'elpher-go + (kbd "o") 'elpher-go-current + (kbd "O") 'elpher-root-dir + (kbd "s") 'elpher-show-history + (kbd "S") 'elpher-show-visited-pages + (kbd "r") 'elpher-redraw + (kbd "R") 'elpher-reload + (kbd "T") 'elpher-toggle-tls + (kbd ".") 'elpher-view-raw + (kbd "d") 'elpher-download + (kbd "D") 'elpher-download-current + (kbd "m") 'elpher-jump + (kbd "i") 'elpher-info-link + (kbd "I") 'elpher-info-current + (kbd "c") 'elpher-copy-link-url + (kbd "C") 'elpher-copy-current-url + (kbd "a") 'elpher-bookmark-link + (kbd "A") 'elpher-bookmark-current + (kbd "B") 'elpher-show-bookmarks + (kbd "!") 'elpher-set-gopher-coding-system + (kbd "F") 'elpher-forget-current-certificate)) map) "Keymap for gopher client.") @@ -2412,8 +2628,7 @@ functions which initialize the client, namely (setq-local elpher-history nil) (setq-local elpher-buffer-name (buffer-name)) (setq-local bookmark-make-record-function #'elpher-bookmark-make-record) - (setq-local imenu-create-index-function #'elpher-build-current-imenu-index) - (setq-local xterm-color-preserve-properties t)) + (setq-local imenu-create-index-function #'elpher-build-current-imenu-index)) (when (fboundp 'evil-set-initial-state) (evil-set-initial-state 'elpher-mode 'motion))