Commit | Line | Data |
---|---|---|
8c8b8430 | 1 | ;;; url-parse.el --- Uniform Resource Locator parser |
ffc00a35 | 2 | |
71ddfde5 | 3 | ;; Copyright (C) 1996, 1997, 1998, 1999, 2004, |
5df4f04c | 4 | ;; 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
ffc00a35 | 5 | |
8c8b8430 SM |
6 | ;; Keywords: comm, data, processes |
7 | ||
ffc00a35 SM |
8 | ;; This file is part of GNU Emacs. |
9 | ;; | |
4936186e | 10 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
ffc00a35 | 11 | ;; it under the terms of the GNU General Public License as published by |
4936186e GM |
12 | ;; the Free Software Foundation, either version 3 of the License, or |
13 | ;; (at your option) any later version. | |
14 | ||
ffc00a35 SM |
15 | ;; GNU Emacs is distributed in the hope that it will be useful, |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
4936186e | 19 | |
ffc00a35 | 20 | ;; You should have received a copy of the GNU General Public License |
4936186e | 21 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
ffc00a35 SM |
22 | |
23 | ;;; Commentary: | |
24 | ||
25 | ;;; Code: | |
26 | ||
8c8b8430 | 27 | (require 'url-vars) |
04c23739 | 28 | (require 'auth-source) |
d18ec89f | 29 | (eval-when-compile (require 'cl)) |
8c8b8430 SM |
30 | |
31 | (autoload 'url-scheme-get-property "url-methods") | |
32 | ||
d18ec89f SM |
33 | (defstruct (url |
34 | (:constructor nil) | |
35 | (:constructor url-parse-make-urlobj | |
36 | (&optional type user password host portspec filename | |
37 | target attributes fullness)) | |
38 | (:copier nil)) | |
08b8ba9f | 39 | type user password host portspec filename target attributes fullness silent) |
8c8b8430 | 40 | |
d18ec89f SM |
41 | (defsubst url-port (urlobj) |
42 | (or (url-portspec urlobj) | |
43 | (if (url-fullness urlobj) | |
44 | (url-scheme-get-property (url-type urlobj) 'default-port)))) | |
8c8b8430 | 45 | |
d18ec89f | 46 | (defsetf url-port (urlobj) (port) `(setf (url-portspec ,urlobj) ,port)) |
71ddfde5 | 47 | |
8c8b8430 SM |
48 | ;;;###autoload |
49 | (defun url-recreate-url (urlobj) | |
61bbdf64 | 50 | "Recreate a URL string from the parsed URLOBJ." |
8c8b8430 SM |
51 | (concat (url-type urlobj) ":" (if (url-host urlobj) "//" "") |
52 | (if (url-user urlobj) | |
53 | (concat (url-user urlobj) | |
54 | (if (url-password urlobj) | |
55 | (concat ":" (url-password urlobj))) | |
56 | "@")) | |
57 | (url-host urlobj) | |
58 | (if (and (url-port urlobj) | |
59 | (not (equal (url-port urlobj) | |
60 | (url-scheme-get-property (url-type urlobj) 'default-port)))) | |
61 | (format ":%d" (url-port urlobj))) | |
fb7dc310 SM |
62 | (or (url-filename urlobj) "/") |
63 | (url-recreate-url-attributes urlobj) | |
8c8b8430 | 64 | (if (url-target urlobj) |
fb7dc310 SM |
65 | (concat "#" (url-target urlobj))))) |
66 | ||
67 | (defun url-recreate-url-attributes (urlobj) | |
68 | "Recreate the attributes of an URL string from the parsed URLOBJ." | |
69 | (when (url-attributes urlobj) | |
0539db75 | 70 | (concat ";" |
fb7dc310 SM |
71 | (mapconcat (lambda (x) |
72 | (if (cdr x) | |
73 | (concat (car x) "=" (cdr x)) | |
74 | (car x))) | |
75 | (url-attributes urlobj) ";")))) | |
8c8b8430 SM |
76 | |
77 | ;;;###autoload | |
78 | (defun url-generic-parse-url (url) | |
66991ff0 SM |
79 | "Return an URL-struct of the parts of URL. |
80 | The CL-style struct contains the following fields: | |
81 | TYPE USER PASSWORD HOST PORTSPEC FILENAME TARGET ATTRIBUTES FULLNESS." | |
f6fb70fc | 82 | ;; See RFC 3986. |
8c8b8430 SM |
83 | (cond |
84 | ((null url) | |
d18ec89f | 85 | (url-parse-make-urlobj)) |
8c8b8430 SM |
86 | ((or (not (string-match url-nonrelative-link url)) |
87 | (= ?/ (string-to-char url))) | |
f6fb70fc MH |
88 | ;; This isn't correct, as a relative URL can be a fragment link |
89 | ;; (e.g. "#foo") and many other things (see section 4.2). | |
90 | ;; However, let's not fix something that isn't broken, especially | |
91 | ;; when close to a release. | |
d18ec89f | 92 | (url-parse-make-urlobj nil nil nil nil nil url)) |
8c8b8430 | 93 | (t |
d58fae84 | 94 | (with-temp-buffer |
c074ba4a SM |
95 | ;; Don't let those temp-buffer modifications accidentally |
96 | ;; deactivate the mark of the current-buffer. | |
97 | (let ((deactivate-mark nil)) | |
98 | (set-syntax-table url-parse-syntax-table) | |
99 | (let ((save-pos nil) | |
100 | (prot nil) | |
101 | (user nil) | |
102 | (pass nil) | |
103 | (host nil) | |
104 | (port nil) | |
105 | (file nil) | |
106 | (refs nil) | |
107 | (attr nil) | |
108 | (full nil) | |
109 | (inhibit-read-only t)) | |
110 | (erase-buffer) | |
111 | (insert url) | |
112 | (goto-char (point-min)) | |
113 | (setq save-pos (point)) | |
114 | ||
115 | ;; 3.1. Scheme | |
116 | (unless (looking-at "//") | |
117 | (skip-chars-forward "a-zA-Z+.\\-") | |
118 | (downcase-region save-pos (point)) | |
119 | (setq prot (buffer-substring save-pos (point))) | |
120 | (skip-chars-forward ":") | |
121 | (setq save-pos (point))) | |
122 | ||
123 | ;; 3.2. Authority | |
124 | (when (looking-at "//") | |
125 | (setq full t) | |
126 | (forward-char 2) | |
127 | (setq save-pos (point)) | |
128 | (skip-chars-forward "^/") | |
129 | (setq host (buffer-substring save-pos (point))) | |
130 | (if (string-match "^\\([^@]+\\)@" host) | |
131 | (setq user (match-string 1 host) | |
132 | host (substring host (match-end 0) nil))) | |
133 | (if (and user (string-match "\\([^:]+\\):\\(.*\\)" user)) | |
134 | (setq pass (match-string 2 user) | |
135 | user (match-string 1 user))) | |
136 | ;; This gives wrong results for IPv6 literal addresses. | |
137 | (if (string-match ":\\([0-9+]+\\)" host) | |
138 | (setq port (string-to-number (match-string 1 host)) | |
139 | host (substring host 0 (match-beginning 0)))) | |
140 | (if (string-match ":$" host) | |
141 | (setq host (substring host 0 (match-beginning 0)))) | |
142 | (setq host (downcase host) | |
143 | save-pos (point))) | |
144 | ||
145 | (if (not port) | |
146 | (setq port (url-scheme-get-property prot 'default-port))) | |
147 | ||
148 | ;; 3.3. Path | |
149 | ;; Gross hack to preserve ';' in data URLs | |
150 | (setq save-pos (point)) | |
151 | ||
152 | ;; 3.4. Query | |
153 | (if (string= "data" prot) | |
154 | (goto-char (point-max)) | |
155 | ;; Now check for references | |
156 | (skip-chars-forward "^#") | |
157 | (if (eobp) | |
158 | nil | |
159 | (delete-region | |
160 | (point) | |
161 | (progn | |
162 | (skip-chars-forward "#") | |
163 | (setq refs (buffer-substring (point) (point-max))) | |
164 | (point-max)))) | |
165 | (goto-char save-pos) | |
166 | (skip-chars-forward "^;") | |
167 | (unless (eobp) | |
168 | (setq attr (url-parse-args (buffer-substring (point) (point-max)) | |
169 | t) | |
0539db75 | 170 | attr (nreverse attr)))) |
8c8b8430 | 171 | |
c074ba4a SM |
172 | (setq file (buffer-substring save-pos (point))) |
173 | (if (and host (string-match "%[0-9][0-9]" host)) | |
174 | (setq host (url-unhex-string host))) | |
175 | (url-parse-make-urlobj | |
176 | prot user pass host port file refs attr full))))))) | |
8c8b8430 | 177 | |
04c23739 MH |
178 | (defmacro url-bit-for-url (method lookfor url) |
179 | `(let* ((urlobj (url-generic-parse-url url)) | |
180 | (bit (funcall ,method urlobj)) | |
181 | (methods (list 'url-recreate-url | |
182 | 'url-host))) | |
183 | (while (and (not bit) (> (length methods) 0)) | |
184 | (setq bit | |
185 | (auth-source-user-or-password | |
186 | ,lookfor (funcall (pop methods) urlobj) (url-type urlobj)))) | |
187 | bit)) | |
188 | ||
189 | (defun url-user-for-url (url) | |
190 | "Attempt to use .authinfo to find a user for this URL." | |
191 | (url-bit-for-url 'url-user "login" url)) | |
192 | ||
193 | (defun url-password-for-url (url) | |
194 | "Attempt to use .authinfo to find a password for this URL." | |
195 | (url-bit-for-url 'url-password "password" url)) | |
196 | ||
8c8b8430 | 197 | (provide 'url-parse) |
e5566bd5 | 198 | |
ffc00a35 | 199 | ;;; url-parse.el ends here |