X-Git-Url: https://thelambdalab.xyz/gitweb/index.cgi?p=elpher.git;a=blobdiff_plain;f=elpher.el;h=8113c533bf002018a46b2ea1fb8cf53ebb275c88;hp=ddcf10a4f7eb8262c99c35851d3157eb1127713a;hb=46dac5a84b17c972b4479ccb0b288ae531c247a0;hpb=2a5869973e76065f1e57265d1271e76065768f64 diff --git a/elpher.el b/elpher.el index ddcf10a..8113c53 100644 --- a/elpher.el +++ b/elpher.el @@ -2,9 +2,9 @@ ;; Copyright (C) 2019 Tim Vaughan -;; Author: Tim Vaughan +;; Author: Tim Vaughan ;; Created: 11 April 2019 -;; Version: 2.7.0 +;; Version: 2.7.4 ;; Keywords: comm gopher ;; Homepage: http://thelambdalab.xyz/elpher ;; Package-Requires: ((emacs "26")) @@ -70,7 +70,7 @@ ;;; Global constants ;; -(defconst elpher-version "2.7.0" +(defconst elpher-version "2.7.4" "Current version of elpher.") (defconst elpher-margin-width 6 @@ -134,12 +134,12 @@ sequences." :type '(boolean)) (defcustom elpher-gemini-TLS-cert-checks nil - "If non-nil, verify gemini server TLS certificates using the default -emacs security protocol. Otherwise, certificate verification is disabled. + "If non-nil, verify gemini server TLS certs using the default security level. +Otherwise, certificate verification is disabled. This defaults to off because it is standard practice for Gemini servers to use self-signed certificates, meaning that most servers provide what -emacs considers to be an invalid certificate." +EMACS considers to be an invalid certificate." :type '(boolean)) (defcustom elpher-gemini-max-fill-width 80 @@ -148,6 +148,10 @@ The actual width used is the minimum of this value and the window width at the time when the text is rendered." :type '(integer)) +(defcustom elpher-bookmarks-file (locate-user-emacs-file "elpher-bookmarks") + "Specify the name of the file where elpher bookmarks will be saved." + :type '(file)) + ;; Face customizations (defgroup elpher-faces nil @@ -208,15 +212,15 @@ the time when the text is rendered." (defface elpher-gemini-heading1 '((t :inherit bold :height 1.8)) - "Face used for brackets around directory margin key.") + "Face used for gemini heading level 1.") (defface elpher-gemini-heading2 '((t :inherit bold :height 1.5)) - "Face used for brackets around directory margin key.") + "Face used for gemini heading level 2.") (defface elpher-gemini-heading3 '((t :inherit bold :height 1.2)) - "Face used for brackets around directory margin key.") + "Face used for gemini heading level 3.") ;;; Model ;; @@ -388,6 +392,10 @@ If no address is defined, returns 0. (This is for compatibility with the URL li "Retrieve the address corresponding to PAGE." (elt page 1)) +(defun elpher-page-set-address (page new-address) + "Set the address corresponding to PAGE to NEW-ADDRESS." + (setcar (cdr page) new-address)) + (defvar elpher-current-page nil) (defvar elpher-history nil) @@ -424,7 +432,7 @@ unless NO-HISTORY is non-nil." (let ((previous-page (pop elpher-history))) (if previous-page (elpher-visit-page previous-page nil t) - (error "No previous page.")))) + (error "No previous page")))) (defun elpher-reload-current-page () "Reload the current page, discarding any existing cached content." @@ -805,7 +813,9 @@ The response is rendered using the rendering function RENDERER." (if (not data) nil (let* ((address (elpher-page-address elpher-current-page)) - (selector (elpher-gopher-address-selector address))) + (selector (if (elpher-address-gopher-p address) + (elpher-gopher-address-selector address) + (elpher-address-filename address)))) (elpher-visit-previous-page) ; Do first in case of non-local exits. (let* ((filename-proposal (file-name-nondirectory selector)) (filename (read-file-name "Download complete. Save file as: " @@ -940,6 +950,7 @@ that the response was malformed." "gemini")) (error "Server tried to automatically redirect to non-gemini URL: %s" response-meta)) + (elpher-page-set-address elpher-current-page redirect-address) (add-to-list 'elpher-gemini-redirect-chain redirect-address) (elpher-get-gemini-response redirect-address renderer))) (?4 ; Temporary failure @@ -1005,17 +1016,23 @@ that the response was malformed." (_other (error "Unsupported MIME type %S" mime-type)))))) -(defun elpher-gemini-get-link-url (line) - "Extract the url portion of LINE, a gemini map file link line." - (string-trim (elt (split-string (substring line 2)) 0))) - -(defun elpher-gemini-get-link-display-string (line) - "Extract the display string portion of LINE, a gemini map file link line." - (let* ((rest (string-trim (elt (split-string line "=>") 1))) +(defun elpher-gemini-get-link-url (link-line) + "Extract the url portion of LINK-LINE, a gemini map file link line. +Returns nil in the event that the contents of the line following the +=> prefix are empty." + (let ((l (split-string (substring link-line 2)))) + (if l + (string-trim (elt l 0)) + nil))) + +(defun elpher-gemini-get-link-display-string (link-line) + "Extract the display string portion of LINK-LINE, a gemini map file link line. +Returns the url portion in the event that the display-string portion is empty." + (let* ((rest (string-trim (elt (split-string link-line "=>") 1))) (idx (string-match "[ \t]" rest))) - (if idx - (string-trim (substring rest (+ idx 1))) - ""))) + (string-trim (if idx + (substring rest (+ idx 1)) + rest)))) (defun elpher-collapse-dot-sequences (filename) "Collapse dot sequences in FILENAME. @@ -1052,29 +1069,29 @@ For instance, the filename /a/b/../c/./d will reduce to /a/c/d" address)) (defun elpher-gemini-insert-link (link-line) - "Insert link into a text/gemini document." + "Insert link described by LINK-LINE into a text/gemini document." (let* ((url (elpher-gemini-get-link-url link-line)) - (display-string (let ((s (elpher-gemini-get-link-display-string link-line))) - (if (string-empty-p s) url s))) + (display-string (elpher-gemini-get-link-display-string link-line)) (address (elpher-address-from-gemini-url url)) (type (if address (elpher-address-type address) nil)) (type-map-entry (cdr (assoc type elpher-type-map)))) - (insert "→ ") - (if type-map-entry - (let* ((face (elt type-map-entry 3)) - (filtered-display-string (ansi-color-filter-apply display-string)) - (page (elpher-make-page filtered-display-string address))) - (insert-text-button filtered-display-string - 'face face - 'elpher-page page - 'action #'elpher-click-link - 'follow-link t - 'help-echo (elpher-page-button-help page))) - (insert (propertize display-string 'face 'elpher-unknown))) - (insert "\n"))) + (when display-string + (insert "→ ") + (if type-map-entry + (let* ((face (elt type-map-entry 3)) + (filtered-display-string (ansi-color-filter-apply display-string)) + (page (elpher-make-page filtered-display-string address))) + (insert-text-button filtered-display-string + 'face face + 'elpher-page page + 'action #'elpher-click-link + 'follow-link t + 'help-echo (elpher-page-button-help page))) + (insert (propertize display-string 'face 'elpher-unknown))) + (insert "\n")))) (defun elpher-gemini-insert-header (header-line) - "Insert header into a text/gemini document. + "Insert header described by HEADER-LINE into a text/gemini document. The gemini map file line describing the header is given by HEADER-LINE." (when (string-match "^\\(#+\\)[ \t]*" header-line) @@ -1083,11 +1100,11 @@ by HEADER-LINE." (unless (display-graphic-p) (insert (make-string level ?#) " ")) (insert (propertize header 'face - (case level - ((1) 'elpher-gemini-heading1) - ((2) 'elpher-gemini-heading2) - ((3) 'elpher-gemini-heading3) - (t 'default))) + (pcase level + (1 'elpher-gemini-heading1) + (2 'elpher-gemini-heading2) + (3 'elpher-gemini-heading3) + (_ 'default))) "\n")))) (defun elpher-render-gemini-map (data _parameters) @@ -1299,7 +1316,7 @@ by HEADER-LINE." "- a: rename selected bookmark\n" "\n" "Bookmarks are stored in the file ") - (let ((filename (locate-user-emacs-file "elpher-bookmarks")) + (let ((filename elpher-bookmarks-file) (help-string "RET,mouse-1: Open bookmarks file in new buffer for editing.")) (insert-text-button filename 'face 'link @@ -1336,7 +1353,7 @@ bookmark list, while URL is the url of the entry." (defun elpher-save-bookmarks (bookmarks) "Record the bookmark list BOOKMARKS to the user's bookmark file. Beware that this completely replaces the existing contents of the file." - (with-temp-file (locate-user-emacs-file "elpher-bookmarks") + (with-temp-file elpher-bookmarks-file (erase-buffer) (insert "; Elpher bookmarks file\n\n" "; Bookmarks are stored as a list of (label URL) items.\n" @@ -1349,7 +1366,7 @@ Beware that this completely replaces the existing contents of the file." (let ((bookmarks (with-temp-buffer (ignore-errors - (insert-file-contents (locate-user-emacs-file "elpher-bookmarks")) + (insert-file-contents elpher-bookmarks-file) (goto-char (point-min)) (read (current-buffer)))))) (if (and bookmarks (listp (cadar bookmarks)))