X-Git-Url: http://cgit.sxemacs.org/?p=gnus;a=blobdiff_plain;f=lisp%2Fnetrc.el;h=59e9eab5fc394ea8429c0a6666b88c23f88e69d8;hp=184128ea488574e628e8f125aa2ba3aeeb4ad1f8;hb=4c2a7a1c25d5b10316f35f28c972ef3e70225f25;hpb=0cbafd8ac1786238242dd66313e7278b4e2e4aea diff --git a/lisp/netrc.el b/lisp/netrc.el index 184128ea4..59e9eab5f 100644 --- a/lisp/netrc.el +++ b/lisp/netrc.el @@ -1,27 +1,26 @@ ;;; netrc.el --- .netrc parsing functionality -;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002 -;; Free Software Foundation, Inc. +;; Copyright (C) 1996-2011 Free Software Foundation, Inc. ;; Author: Lars Magne Ingebrigtsen -;; Modularizer: Ted Zlatanov ;; Keywords: news +;; +;; Modularized by Ted Zlatanov +;; when it was part of Gnus. ;; This file is part of GNU Emacs. -;; GNU Emacs is free software; you can redistribute it and/or modify +;; GNU Emacs is free software: you can redistribute it and/or modify ;; it under the terms of the GNU General Public License as published by -;; the Free Software Foundation; either version 2, or (at your option) -;; any later version. +;; the Free Software Foundation, either version 3 of the License, or +;; (at your option) any later version. ;; GNU Emacs is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of -;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; GNU General Public License for more details. ;; You should have received a copy of the GNU General Public License -;; along with GNU Emacs; see the file COPYING. If not, write to the -;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, -;; Boston, MA 02111-1307, USA. +;; along with GNU Emacs. If not, see . ;;; Commentary: @@ -31,62 +30,91 @@ ;;; Code: ;;; -;;; .netrc and .authinforc parsing +;;; .netrc and .authinfo rc parsing ;;; -(defun netrc-parse (file) - "Parse FILE and return an list of all entries in the file." - (when (file-exists-p file) - (with-temp-buffer - (let ((tokens '("machine" "default" "login" - "password" "account" "macdef" "force" - "port")) - alist elem result pair) - (insert-file-contents file) - (goto-char (point-min)) - ;; Go through the file, line by line. - (while (not (eobp)) - (narrow-to-region (point) (point-at-eol)) - ;; For each line, get the tokens and values. +(defgroup netrc nil + "Netrc configuration." + :group 'comm) + +(defcustom netrc-file "~/.authinfo" + "File where user credentials are stored." + :type 'file + :group 'netrc) + +(defvar netrc-services-file "/etc/services" + "The name of the services file.") + +(defvar netrc-cache nil) + +(defun netrc-parse (&optional file) + (interactive "fFile to Parse: ") + "Parse FILE and return a list of all entries in the file." + (unless file + (setq file netrc-file)) + (if (listp file) + ;; We got already parsed contents; just return it. + file + (when (file-exists-p file) + (with-temp-buffer + (let ((tokens '("machine" "default" "login" + "password" "account" "macdef" "force" + "port")) + alist elem result pair) + (if (and netrc-cache + (equal (car netrc-cache) (nth 5 (file-attributes file)))) + ;; Store the contents of the file heavily encrypted in memory. + (insert (base64-decode-string (rot13-string (cdr netrc-cache)))) + (insert-file-contents file) + (when (string-match "\\.gpg\\'" file) + (setq netrc-cache (cons (nth 5 (file-attributes file)) + (rot13-string + (base64-encode-string + (buffer-string))))))) + (goto-char (point-min)) + ;; Go through the file, line by line. (while (not (eobp)) - (skip-chars-forward "\t ") - ;; Skip lines that begin with a "#". - (if (eq (char-after) ?#) - (goto-char (point-max)) - (unless (eobp) - (setq elem - (if (= (following-char) ?\") - (read (current-buffer)) - (buffer-substring - (point) (progn (skip-chars-forward "^\t ") - (point))))) - (cond - ((equal elem "macdef") - ;; We skip past the macro definition. - (widen) - (while (and (zerop (forward-line 1)) - (looking-at "$"))) - (narrow-to-region (point) (point))) - ((member elem tokens) - ;; Tokens that don't have a following value are ignored, - ;; except "default". - (when (and pair (or (cdr pair) - (equal (car pair) "default"))) - (push pair alist)) - (setq pair (list elem))) - (t - ;; Values that haven't got a preceding token are ignored. - (when pair - (setcdr pair elem) - (push pair alist) - (setq pair nil))))))) - (when alist - (push (nreverse alist) result)) - (setq alist nil - pair nil) - (widen) - (forward-line 1)) - (nreverse result))))) + (narrow-to-region (point) (point-at-eol)) + ;; For each line, get the tokens and values. + (while (not (eobp)) + (skip-chars-forward "\t ") + ;; Skip lines that begin with a "#". + (if (eq (char-after) ?#) + (goto-char (point-max)) + (unless (eobp) + (setq elem + (if (= (following-char) ?\") + (read (current-buffer)) + (buffer-substring + (point) (progn (skip-chars-forward "^\t ") + (point))))) + (cond + ((equal elem "macdef") + ;; We skip past the macro definition. + (widen) + (while (and (zerop (forward-line 1)) + (looking-at "$"))) + (narrow-to-region (point) (point))) + ((member elem tokens) + ;; Tokens that don't have a following value are ignored, + ;; except "default". + (when (and pair (or (cdr pair) + (equal (car pair) "default"))) + (push pair alist)) + (setq pair (list elem))) + (t + ;; Values that haven't got a preceding token are ignored. + (when pair + (setcdr pair elem) + (push pair alist) + (setq pair nil))))))) + (when alist + (push (nreverse alist) result)) + (setq alist nil + pair nil) + (widen) + (forward-line 1)) + (nreverse result)))))) (defun netrc-machine (list machine &optional port defaultport) "Return the netrc values from LIST for MACHINE or for the default entry. @@ -102,21 +130,126 @@ Entries without port tokens default to DEFAULTPORT." ;; No machine name matches, so we look for default entries. (while rest (when (assoc "default" (car rest)) - (push (car rest) result)) + (let ((elem (car rest))) + (setq elem (delete (assoc "default" elem) elem)) + (push elem result))) (pop rest))) (when result (setq result (nreverse result)) - (while (and result - (not (equal (or port defaultport "nntp") - (or (netrc-get (car result) "port") - defaultport "nntp")))) - (pop result)) - (car result)))) + (if (not port) + (car result) + (while (and result + (not (netrc-port-equal + (or port defaultport "nntp") + ;; when port is not given in the netrc file, + ;; it should mean "any port" + (or (netrc-get (car result) "port") + defaultport port)))) + (pop result)) + (car result))))) + +(defun netrc-machine-user-or-password (mode authinfo-file-or-list machines ports defaults) + "Get the user name or password according to MODE from AUTHINFO-FILE-OR-LIST. +Matches a machine from MACHINES and a port from PORTS, giving +default ports DEFAULTS to `netrc-machine'. + +MODE can be \"login\" or \"password\", suitable for passing to +`netrc-get'." + (let ((authinfo-list (if (stringp authinfo-file-or-list) + (netrc-parse authinfo-file-or-list) + authinfo-file-or-list)) + (ports (or ports '(nil))) + (defaults (or defaults '(nil))) + info) + (if (listp mode) + (setq info + (mapcar + (lambda (mode-element) + (netrc-machine-user-or-password + mode-element + authinfo-list + machines + ports + defaults)) + mode)) + (dolist (machine machines) + (dolist (default defaults) + (dolist (port ports) + (let ((alist (netrc-machine authinfo-list machine port default))) + (setq info (or (netrc-get alist mode) info))))))) + info)) (defun netrc-get (alist type) "Return the value of token TYPE from ALIST." (cdr (assoc type alist))) +(defun netrc-port-equal (port1 port2) + (when (numberp port1) + (setq port1 (or (netrc-find-service-name port1) port1))) + (when (numberp port2) + (setq port2 (or (netrc-find-service-name port2) port2))) + (equal port1 port2)) + +(defun netrc-parse-services () + (when (file-exists-p netrc-services-file) + (let ((services nil)) + (with-temp-buffer + (insert-file-contents netrc-services-file) + (while (search-forward "#" nil t) + (delete-region (1- (point)) (point-at-eol))) + (goto-char (point-min)) + (while (re-search-forward + "^ *\\([^ \n\t]+\\)[ \t]+\\([0-9]+\\)/\\([^ \t\n]+\\)" nil t) + (push (list (match-string 1) (string-to-number (match-string 2)) + (intern (downcase (match-string 3)))) + services)) + (nreverse services))))) + +(defun netrc-find-service-name (number &optional type) + (let ((services (netrc-parse-services)) + service) + (setq type (or type 'tcp)) + (while (and (setq service (pop services)) + (not (and (= number (cadr service)) + (eq type (car (cddr service))))))) + (car service))) + +(defun netrc-find-service-number (name &optional type) + (let ((services (netrc-parse-services)) + service) + (setq type (or type 'tcp)) + (while (and (setq service (pop services)) + (not (and (string= name (car service)) + (eq type (car (cddr service))))))) + (cadr service))) + +(defun netrc-store-data (file host port user password) + (with-temp-buffer + (when (file-exists-p file) + (insert-file-contents file)) + (goto-char (point-max)) + (unless (bolp) + (insert "\n")) + (insert (format "machine %s login %s password %s port %s\n" + host user password port)) + (write-region (point-min) (point-max) file nil 'silent))) + +;;;###autoload +(defun netrc-credentials (machine &rest ports) + "Return a user name/password pair. +Port specifications will be prioritised in the order they are +listed in the PORTS list." + (let ((list (netrc-parse)) + found) + (if (not ports) + (setq found (netrc-machine list machine)) + (while (and ports + (not found)) + (setq found (netrc-machine list machine (pop ports))))) + (when found + (list (cdr (assoc "login" found)) + (cdr (assoc "password" found)))))) + (provide 'netrc) ;;; netrc.el ends here