1;;; url-parse.el --- Uniform Resource Locator parser 2 3;; Copyright (C) 1996, 1997, 1998, 1999, 2004, 4;; 2005, 2006, 2007 Free Software Foundation, Inc. 5 6;; Keywords: comm, data, processes 7 8;; This file is part of GNU Emacs. 9;; 10;; GNU Emacs is free software; you can redistribute it and/or modify 11;; it under the terms of the GNU General Public License as published by 12;; the Free Software Foundation; either version 2, or (at your option) 13;; any later version. 14;; 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. 19;; 20;; You should have received a copy of the GNU General Public License 21;; along with GNU Emacs; see the file COPYING. If not, write to the 22;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 23;; Boston, MA 02110-1301, USA. 24 25;;; Commentary: 26 27;;; Code: 28 29(require 'url-vars) 30 31(autoload 'url-scheme-get-property "url-methods") 32 33(defmacro url-type (urlobj) 34 `(aref ,urlobj 0)) 35 36(defmacro url-user (urlobj) 37 `(aref ,urlobj 1)) 38 39(defmacro url-password (urlobj) 40 `(aref ,urlobj 2)) 41 42(defmacro url-host (urlobj) 43 `(aref ,urlobj 3)) 44 45(defmacro url-port (urlobj) 46 `(or (aref ,urlobj 4) 47 (if (url-fullness ,urlobj) 48 (url-scheme-get-property (url-type ,urlobj) 'default-port)))) 49 50(defmacro url-filename (urlobj) 51 `(aref ,urlobj 5)) 52 53(defmacro url-target (urlobj) 54 `(aref ,urlobj 6)) 55 56(defmacro url-attributes (urlobj) 57 `(aref ,urlobj 7)) 58 59(defmacro url-fullness (urlobj) 60 `(aref ,urlobj 8)) 61 62(defmacro url-set-type (urlobj type) 63 `(aset ,urlobj 0 ,type)) 64 65(defmacro url-set-user (urlobj user) 66 `(aset ,urlobj 1 ,user)) 67 68(defmacro url-set-password (urlobj pass) 69 `(aset ,urlobj 2 ,pass)) 70 71(defmacro url-set-host (urlobj host) 72 `(aset ,urlobj 3 ,host)) 73 74(defmacro url-set-port (urlobj port) 75 `(aset ,urlobj 4 ,port)) 76 77(defmacro url-set-filename (urlobj file) 78 `(aset ,urlobj 5 ,file)) 79 80(defmacro url-set-target (urlobj targ) 81 `(aset ,urlobj 6 ,targ)) 82 83(defmacro url-set-attributes (urlobj targ) 84 `(aset ,urlobj 7 ,targ)) 85 86(defmacro url-set-full (urlobj val) 87 `(aset ,urlobj 8 ,val)) 88 89;;;###autoload 90(defun url-recreate-url (urlobj) 91 "Recreate a URL string from the parsed URLOBJ." 92 (concat (url-type urlobj) ":" (if (url-host urlobj) "//" "") 93 (if (url-user urlobj) 94 (concat (url-user urlobj) 95 (if (url-password urlobj) 96 (concat ":" (url-password urlobj))) 97 "@")) 98 (url-host urlobj) 99 (if (and (url-port urlobj) 100 (not (equal (url-port urlobj) 101 (url-scheme-get-property (url-type urlobj) 'default-port)))) 102 (format ":%d" (url-port urlobj))) 103 (or (url-filename urlobj) "/") 104 (url-recreate-url-attributes urlobj) 105 (if (url-target urlobj) 106 (concat "#" (url-target urlobj))))) 107 108(defun url-recreate-url-attributes (urlobj) 109 "Recreate the attributes of an URL string from the parsed URLOBJ." 110 (when (url-attributes urlobj) 111 (concat ";" 112 (mapconcat (lambda (x) 113 (if (cdr x) 114 (concat (car x) "=" (cdr x)) 115 (car x))) 116 (url-attributes urlobj) ";")))) 117 118;;;###autoload 119(defun url-generic-parse-url (url) 120 "Return a vector of the parts of URL. 121Format is: 122\[TYPE USER PASSWORD HOST PORT FILE TARGET ATTRIBUTES FULL\]" 123 ;; See RFC 3986. 124 (cond 125 ((null url) 126 (make-vector 9 nil)) 127 ((or (not (string-match url-nonrelative-link url)) 128 (= ?/ (string-to-char url))) 129 ;; This isn't correct, as a relative URL can be a fragment link 130 ;; (e.g. "#foo") and many other things (see section 4.2). 131 ;; However, let's not fix something that isn't broken, especially 132 ;; when close to a release. 133 (let ((retval (make-vector 9 nil))) 134 (url-set-filename retval url) 135 (url-set-full retval nil) 136 retval)) 137 (t 138 (with-temp-buffer 139 (set-syntax-table url-parse-syntax-table) 140 (let ((save-pos nil) 141 (prot nil) 142 (user nil) 143 (pass nil) 144 (host nil) 145 (port nil) 146 (file nil) 147 (refs nil) 148 (attr nil) 149 (full nil) 150 (inhibit-read-only t)) 151 (erase-buffer) 152 (insert url) 153 (goto-char (point-min)) 154 (setq save-pos (point)) 155 156 ;; 3.1. Scheme 157 (if (not (looking-at "//")) 158 (progn 159 (skip-chars-forward "a-zA-Z+.\\-") 160 (downcase-region save-pos (point)) 161 (setq prot (buffer-substring save-pos (point))) 162 (skip-chars-forward ":") 163 (setq save-pos (point)))) 164 165 ;; 3.2. Authority 166 (if (looking-at "//") 167 (progn 168 (setq full t) 169 (forward-char 2) 170 (setq save-pos (point)) 171 (skip-chars-forward "^/") 172 (setq host (buffer-substring save-pos (point))) 173 (if (string-match "^\\([^@]+\\)@" host) 174 (setq user (match-string 1 host) 175 host (substring host (match-end 0) nil))) 176 (if (and user (string-match "\\([^:]+\\):\\(.*\\)" user)) 177 (setq pass (match-string 2 user) 178 user (match-string 1 user))) 179 ;; This gives wrong results for IPv6 literal addresses. 180 (if (string-match ":\\([0-9+]+\\)" host) 181 (setq port (string-to-number (match-string 1 host)) 182 host (substring host 0 (match-beginning 0)))) 183 (if (string-match ":$" host) 184 (setq host (substring host 0 (match-beginning 0)))) 185 (setq host (downcase host) 186 save-pos (point)))) 187 188 (if (not port) 189 (setq port (url-scheme-get-property prot 'default-port))) 190 191 ;; 3.3. Path 192 ;; Gross hack to preserve ';' in data URLs 193 (setq save-pos (point)) 194 195 ;; 3.4. Query 196 (if (string= "data" prot) 197 (goto-char (point-max)) 198 ;; Now check for references 199 (skip-chars-forward "^#") 200 (if (eobp) 201 nil 202 (delete-region 203 (point) 204 (progn 205 (skip-chars-forward "#") 206 (setq refs (buffer-substring (point) (point-max))) 207 (point-max)))) 208 (goto-char save-pos) 209 (skip-chars-forward "^;") 210 (if (not (eobp)) 211 (setq attr (url-parse-args (buffer-substring (point) (point-max)) t) 212 attr (nreverse attr)))) 213 214 (setq file (buffer-substring save-pos (point))) 215 (if (and host (string-match "%[0-9][0-9]" host)) 216 (setq host (url-unhex-string host))) 217 (vector prot user pass host port file refs attr full)))))) 218 219(provide 'url-parse) 220 221;; arch-tag: f338325f-71ab-4bee-93cc-78fb9a03d403 222;;; url-parse.el ends here 223