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1 ;;; url.el --- Uniform Resource Locator retrieval tool
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2 ;; Author: wmperry
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3 ;; Created: 1997/01/29 14:32:36
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4 ;; Version: 1.48
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5 ;; Keywords: comm, data, processes, hypermedia
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6
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7 ;;; LCD Archive Entry:
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8 ;;; url|William M. Perry|wmperry@cs.indiana.edu|
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9 ;;; Functions for retrieving/manipulating URLs|
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10 ;;; 1997/01/29 14:32:36|1.48|Location Undetermined
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11 ;;;
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12
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13 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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14 ;;; Copyright (c) 1993-1996 by William M. Perry (wmperry@cs.indiana.edu)
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15 ;;; Copyright (c) 1996, 1997 Free Software Foundation, Inc.
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16 ;;;
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17 ;;; This file is not part of GNU Emacs, but the same permissions apply.
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18 ;;;
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19 ;;; GNU Emacs is free software; you can redistribute it and/or modify
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20 ;;; it under the terms of the GNU General Public License as published by
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21 ;;; the Free Software Foundation; either version 2, or (at your option)
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22 ;;; any later version.
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23 ;;;
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24 ;;; GNU Emacs is distributed in the hope that it will be useful,
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25 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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26 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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27 ;;; GNU General Public License for more details.
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28 ;;;
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29 ;;; You should have received a copy of the GNU General Public License
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30 ;;; along with GNU Emacs; see the file COPYING. If not, write to the
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31 ;;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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32 ;;; Boston, MA 02111-1307, USA.
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33 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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34
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35
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36 (require 'cl)
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37 (require 'url-vars)
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38 (require 'url-parse)
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39 (require 'mm)
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40 (require 'mule-sysdp)
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41 (or (featurep 'efs)
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42 (featurep 'efs-auto)
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43 (condition-case ()
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44 (require 'ange-ftp)
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45 (error nil)))
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46
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47 (require 'w3-sysdp)
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48
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49 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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50 ;;; Functions that might not exist in old versions of emacs
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51 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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52 (defun url-save-error (errobj)
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53 (save-excursion
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54 (set-buffer (get-buffer-create " *url-error*"))
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55 (erase-buffer))
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56 (display-error errobj (get-buffer-create " *url-error*")))
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57
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58 (cond
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59 ((fboundp 'display-warning)
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60 (fset 'url-warn 'display-warning))
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61 ((fboundp 'w3-warn)
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62 (fset 'url-warn 'w3-warn))
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63 ((fboundp 'warn)
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64 (defun url-warn (class message &optional level)
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65 (warn "(%s/%s) %s" class (or level 'warning) message)))
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66 (t
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67 (defun url-warn (class message &optional level)
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68 (save-excursion
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69 (set-buffer (get-buffer-create "*W3-WARNINGS*"))
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70 (goto-char (point-max))
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71 (save-excursion
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72 (insert (format "(%s/%s) %s\n" class (or level 'warning) message)))
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73 (display-buffer (current-buffer))))))
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74
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75
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76 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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77 ;;; Autoload all the URL loaders
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78 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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79 (autoload 'url-file "url-file")
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80 (autoload 'url-ftp "url-file")
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81 (autoload 'url-gopher "url-gopher")
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82 (autoload 'url-irc "url-irc")
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83 (autoload 'url-http "url-http")
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84 (autoload 'url-nfs "url-nfs")
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85 (autoload 'url-mailserver "url-mail")
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86 (autoload 'url-mailto "url-mail")
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87 (autoload 'url-info "url-misc")
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88 (autoload 'url-shttp "url-http")
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89 (autoload 'url-https "url-http")
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90 (autoload 'url-data "url-misc")
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91 (autoload 'url-finger "url-misc")
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92 (autoload 'url-rlogin "url-misc")
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93 (autoload 'url-telnet "url-misc")
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94 (autoload 'url-tn3270 "url-misc")
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95 (autoload 'url-proxy "url-misc")
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96 (autoload 'url-x-exec "url-misc")
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97 (autoload 'url-news "url-news")
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98 (autoload 'url-nntp "url-news")
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99 (autoload 'url-decode-pgp/pem "url-pgp")
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100 (autoload 'url-wais "url-wais")
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101
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102 (autoload 'url-open-stream "url-gw")
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103 (autoload 'url-mime-response-p "url-http")
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104 (autoload 'url-parse-mime-headers "url-http")
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105 (autoload 'url-handle-refresh-header "url-http")
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106 (autoload 'url-create-mime-request "url-http")
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107 (autoload 'url-create-message-id "url-http")
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108 (autoload 'url-create-multipart-request "url-http")
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109 (autoload 'url-parse-viewer-types "url-http")
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82
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110
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111 (autoload 'url-get-authentication "url-auth")
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112 (autoload 'url-register-auth-scheme "url-auth")
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113 (autoload 'url-cookie-write-file "url-cookie")
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114 (autoload 'url-cookie-retrieve "url-cookie")
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115 (autoload 'url-cookie-generate-header-lines "url-cookie")
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116 (autoload 'url-cookie-handle-set-cookie "url-cookie")
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117
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118 (require 'md5)
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119 (require 'base64)
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120
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121 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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122 ;;; File-name-handler-alist functions
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123 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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124 (defun url-setup-file-name-handlers ()
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125 ;; Setup file-name handlers.
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126 '(cond
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127 ((not (boundp 'file-name-handler-alist))
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128 nil) ; Don't load if no alist
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129 ((rassq 'url-file-handler file-name-handler-alist)
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130 nil) ; Don't load twice
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131 ((and (string-match "XEmacs\\|Lucid" emacs-version)
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132 (< url-emacs-minor-version 11)) ; Don't load in lemacs 19.10
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133 nil)
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134 (t
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135 (setq file-name-handler-alist
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136 (let ((new-handler (cons
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137 (concat "^/*"
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138 (substring url-nonrelative-link1 nil))
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139 'url-file-handler)))
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140 (if file-name-handler-alist
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141 (append (list new-handler) file-name-handler-alist)
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142 (list new-handler)))))))
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143
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144 (defun url-file-handler (operation &rest args)
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145 ;; Function called from the file-name-handler-alist routines. OPERATION
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146 ;; is what needs to be done ('file-exists-p, etc). args are the arguments
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147 ;; that would have been passed to OPERATION."
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148 (let ((fn (get operation 'url-file-handlers))
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149 (url (car args))
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150 (myargs (cdr args)))
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151 (if (= (string-to-char url) ?/)
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152 (setq url (substring url 1 nil)))
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153 (if fn (apply fn url myargs)
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154 (let (file-name-handler-alist)
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155 (apply operation url myargs)))))
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156
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157 (defun url-file-handler-identity (&rest args)
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158 (car args))
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159
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160 (defun url-file-handler-null (&rest args)
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161 nil)
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162
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163 (put 'file-directory-p 'url-file-handlers 'url-file-handler-null)
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164 (put 'substitute-in-file-name 'url-file-handlers 'url-file-handler-identity)
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165 (put 'file-writable-p 'url-file-handlers 'url-file-handler-null)
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166 (put 'file-truename 'url-file-handlers 'url-file-handler-identity)
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167 (put 'insert-file-contents 'url-file-handlers 'url-insert-file-contents)
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168 (put 'expand-file-name 'url-file-handlers 'url-expand-file-name)
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169 (put 'directory-files 'url-file-handlers 'url-directory-files)
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170 (put 'file-directory-p 'url-file-handlers 'url-file-directory-p)
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171 (put 'file-writable-p 'url-file-handlers 'url-file-writable-p)
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172 (put 'file-readable-p 'url-file-handlers 'url-file-exists)
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173 (put 'file-executable-p 'url-file-handlers 'null)
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174 (put 'file-symlink-p 'url-file-handlers 'null)
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175 (put 'file-exists-p 'url-file-handlers 'url-file-exists)
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176 (put 'copy-file 'url-file-handlers 'url-copy-file)
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177 (put 'file-attributes 'url-file-handlers 'url-file-attributes)
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178 (put 'file-name-all-completions 'url-file-handlers
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179 'url-file-name-all-completions)
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180 (put 'file-name-completion 'url-file-handlers 'url-file-name-completion)
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181 (put 'file-local-copy 'url-file-handlers 'url-file-local-copy)
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182
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183
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184 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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185 ;;; Utility functions
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186 ;;; -----------------
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187 ;;; Various functions used around the url code.
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188 ;;; Some of these qualify as hacks, but hey, this is elisp.
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189 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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190
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191 (if (fboundp 'mm-string-to-tokens)
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192 (fset 'url-string-to-tokens 'mm-string-to-tokens)
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193 (defun url-string-to-tokens (str &optional delim)
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194 "Return a list of words from the string STR"
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195 (setq delim (or delim ? ))
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196 (let (results y)
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197 (mapcar
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198 (function
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199 (lambda (x)
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200 (cond
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201 ((and (= x delim) y) (setq results (cons y results) y nil))
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202 ((/= x delim) (setq y (concat y (char-to-string x))))
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203 (t nil)))) str)
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204 (nreverse (cons y results)))))
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205
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206 (defun url-days-between (date1 date2)
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207 ;; Return the number of days between date1 and date2.
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208 (- (url-day-number date1) (url-day-number date2)))
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209
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210 (defun url-day-number (date)
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211 (let ((dat (mapcar (function (lambda (s) (and s (string-to-int s)) ))
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212 (timezone-parse-date date))))
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213 (timezone-absolute-from-gregorian
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214 (nth 1 dat) (nth 2 dat) (car dat))))
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215
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216 (defun url-seconds-since-epoch (date)
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217 ;; Returns a number that says how many seconds have
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218 ;; lapsed between Jan 1 12:00:00 1970 and DATE."
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219 (let* ((tdate (mapcar (function (lambda (ti) (and ti (string-to-int ti))))
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220 (timezone-parse-date date)))
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221 (ttime (mapcar (function (lambda (ti) (and ti (string-to-int ti))))
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222 (timezone-parse-time
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223 (aref (timezone-parse-date date) 3))))
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224 (edate (mapcar (function (lambda (ti) (and ti (string-to-int ti))))
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225 (timezone-parse-date "Jan 1 12:00:00 1970")))
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226 (tday (- (timezone-absolute-from-gregorian
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227 (nth 1 tdate) (nth 2 tdate) (nth 0 tdate))
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228 (timezone-absolute-from-gregorian
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229 (nth 1 edate) (nth 2 edate) (nth 0 edate)))))
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230 (+ (nth 2 ttime)
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231 (* (nth 1 ttime) 60)
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232 (* (nth 0 ttime) 60 60)
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233 (* tday 60 60 24))))
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234
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235 (defun url-match (s x)
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236 ;; Return regexp match x in s.
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237 (substring s (match-beginning x) (match-end x)))
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238
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239 (defun url-split (str del)
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240 ;; Split the string STR, with DEL (a regular expression) as the delimiter.
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241 ;; Returns an assoc list that you can use with completing-read."
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242 (let (x y)
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243 (while (string-match del str)
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244 (setq y (substring str 0 (match-beginning 0))
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245 str (substring str (match-end 0) nil))
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246 (if (not (string-match "^[ \t]+$" y))
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247 (setq x (cons (list y y) x))))
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248 (if (not (equal str ""))
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249 (setq x (cons (list str str) x)))
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250 x))
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251
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252 (defun url-replace-regexp (regexp to-string)
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253 (goto-char (point-min))
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254 (while (re-search-forward regexp nil t)
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255 (replace-match to-string t nil)))
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256
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257 (defun url-clear-tmp-buffer ()
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258 (set-buffer (get-buffer-create url-working-buffer))
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259 (if buffer-read-only (toggle-read-only))
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260 (erase-buffer))
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261
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262 (defun url-maybe-relative (url)
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263 (url-retrieve (url-expand-file-name url)))
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264
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265 (defun url-buffer-is-hypertext (&optional buff)
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266 "Return t if a buffer contains HTML, as near as we can guess."
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267 (setq buff (or buff (current-buffer)))
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268 (save-excursion
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269 (set-buffer buff)
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270 (let ((case-fold-search t))
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271 (goto-char (point-min))
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272 (re-search-forward
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273 "<\\(TITLE\\|HEAD\\|BASE\\|H[0-9]\\|ISINDEX\\|P\\)>" nil t))))
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274
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275 (defun url-percentage (x y)
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276 (if (fboundp 'float)
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277 (round (* 100 (/ x (float y))))
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278 (/ (* x 100) y)))
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279
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280 (defun url-after-change-function (&rest args)
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281 ;; The nitty gritty details of messaging the HTTP/1.0 status messages
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282 ;; in the minibuffer."
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283 (or url-current-content-length
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284 (save-excursion
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285 (goto-char (point-min))
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286 (skip-chars-forward " \t\n")
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287 (if (not (looking-at "HTTP/[0-9]\.[0-9]"))
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288 (setq url-current-content-length 0)
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289 (setq url-current-isindex
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290 (and (re-search-forward "$\r*$" nil t) (point)))
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291 (if (re-search-forward
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292 "^content-type:[ \t]*\\([^\r\n]+\\)\r*$"
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293 url-current-isindex t)
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294 (setq url-current-mime-type (downcase
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295 (url-eat-trailing-space
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296 (buffer-substring
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297 (match-beginning 1)
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298 (match-end 1))))))
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299 (goto-char (point-min))
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300 (if (re-search-forward "^content-length:\\([^\r\n]+\\)\r*$"
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301 url-current-isindex t)
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302 (setq url-current-content-length
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303 (string-to-int (buffer-substring (match-beginning 1)
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304 (match-end 1))))
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305 (setq url-current-content-length nil))))
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306 )
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307 (let ((current-length (max (point-max)
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308 (if url-current-isindex
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309 (- (point-max) url-current-isindex)
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310 (point-max)))))
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311 (cond
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312 ((and url-current-content-length (> url-current-content-length 1)
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313 url-current-mime-type)
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314 (url-lazy-message "Reading [%s]... %d of %d bytes (%d%%)"
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315 url-current-mime-type
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316 current-length
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317 url-current-content-length
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318 (url-percentage current-length
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319 url-current-content-length)))
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320 ((and url-current-content-length (> url-current-content-length 1))
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321 (url-lazy-message "Reading... %d of %d bytes (%d%%)"
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322 current-length url-current-content-length
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323 (url-percentage current-length
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324 url-current-content-length)))
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325 ((and (/= 1 current-length) url-current-mime-type)
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326 (url-lazy-message "Reading [%s]... %d bytes"
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327 url-current-mime-type current-length))
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328 ((/= 1 current-length)
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329 (url-lazy-message "Reading... %d bytes." current-length))
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330 (t (url-lazy-message "Waiting for response...")))))
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331
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332 (defun url-insert-entities-in-string (string)
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333 "Convert HTML markup-start characters to entity references in STRING.
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334 Also replaces the \" character, so that the result may be safely used as
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335 an attribute value in a tag. Returns a new string with the result of the
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336 conversion. Replaces these characters as follows:
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337 & ==> &
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338 < ==> <
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339 > ==> >
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340 \" ==> ""
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341 (if (string-match "[&<>\"]" string)
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342 (save-excursion
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343 (set-buffer (get-buffer-create " *entity*"))
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344 (erase-buffer)
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345 (buffer-disable-undo (current-buffer))
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346 (insert string)
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347 (goto-char (point-min))
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|
|
348 (while (progn
|
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349 (skip-chars-forward "^&<>\"")
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350 (not (eobp)))
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|
351 (insert (cdr (assq (char-after (point))
|
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352 '((?\" . """)
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|
|
353 (?& . "&")
|
|
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354 (?< . "<")
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355 (?> . ">")))))
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356 (delete-char 1))
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|
357 (buffer-string))
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|
|
358 string))
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359
|
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360 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
361 ;;; Information information
|
|
|
362 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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363 (defvar url-process-lookup-table nil)
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364
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365 (defun url-process-get (proc prop &optional default)
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366 "Get a value associated to PROC as property PROP
|
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367 in plist stored in `url-process-lookup-table'"
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368 (or (plist-get (cdr-safe (assq proc url-process-lookup-table)) prop)
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369 default))
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370
|
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371 (defun url-process-put (proc prop val)
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372 "Associate to PROC as property PROP the value VAL
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373 in plist stored in `url-process-lookup-table'"
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374 (let ((node (assq proc url-process-lookup-table)))
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|
375 (if (not node)
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376 (setq url-process-lookup-table (cons (cons proc (list prop val))
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377 url-process-lookup-table))
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378 (setcdr node (plist-put (cdr node) prop val)))))
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379
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380 (defun url-gc-process-lookup-table ()
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381 (let (new)
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382 (while url-process-lookup-table
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383 (if (not (memq (process-status (caar url-process-lookup-table))
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384 '(stop closed nil)))
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385 (setq new (cons (car url-process-lookup-table) new)))
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386 (setq url-process-lookup-table (cdr url-process-lookup-table)))
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387 (setq url-process-lookup-table new)))
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388
|
|
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389 (defun url-process-list ()
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390 (url-gc-process-lookup-table)
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391 (let ((processes (process-list))
|
|
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392 (retval nil))
|
|
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393 (while processes
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394 (if (url-process-get (car processes) 'url)
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395 (setq retval (cons (car processes) retval)))
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396 (setq processes (cdr processes)))
|
|
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397 retval))
|
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398
|
|
|
399 (defun url-list-processes ()
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400 (interactive)
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|
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401 (let ((processes (url-process-list))
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|
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402 proc total-len len type url
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|
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403 (url-status-buf (get-buffer-create "URL Status Display")))
|
|
|
404 (set-buffer url-status-buf)
|
|
|
405 (erase-buffer)
|
|
|
406 (display-buffer url-status-buf)
|
|
|
407 (insert
|
|
|
408 (eval-when-compile (format "%-40s %-20s %-15s" "URL" "Size" "Type")) "\n"
|
|
|
409 (eval-when-compile (make-string 77 ?-)) "\n")
|
|
|
410 (while processes
|
|
|
411 (setq proc (car processes)
|
|
|
412 processes (cdr processes))
|
|
|
413 (save-excursion
|
|
|
414 (set-buffer (process-buffer proc))
|
|
|
415 (setq total-len url-current-content-length
|
|
|
416 len (max (point-max)
|
|
|
417 (if url-current-isindex
|
|
|
418 (- (point-max) url-current-isindex)
|
|
|
419 (point-max)))
|
|
|
420 type url-current-mime-type
|
|
|
421 url (url-process-get proc 'url))
|
|
|
422 (set-buffer url-status-buf)
|
|
|
423 (insert
|
|
|
424 (format "%-40s%s%-20s %-15s\n"
|
|
|
425 (url-process-get proc 'url)
|
|
|
426 (if (> (length url) 40)
|
|
|
427 (format "\n%-40s " " ")
|
|
|
428 " ")
|
|
|
429 (if total-len
|
|
|
430 (format "%d of %d" len total-len)
|
|
|
431 (format "%d" len))
|
|
|
432 (or type "unknown")))))))
|
|
|
433
|
|
|
434
|
|
|
435 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
436 ;;; file-name-handler stuff calls this
|
|
|
437 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
438
|
|
|
439 (defun url-have-visited-url (url &rest args)
|
|
|
440 "Return non-nil iff the user has visited URL before.
|
|
|
441 The return value is a cons of the url and the date last accessed as a string"
|
|
|
442 (cl-gethash url url-global-history-hash-table))
|
|
|
443
|
|
|
444 (defun url-directory-files (url &rest args)
|
|
|
445 "Return a list of files on a server."
|
|
|
446 nil)
|
|
|
447
|
|
|
448 (defun url-file-writable-p (url &rest args)
|
|
|
449 "Return t iff a url is writable by this user"
|
|
|
450 nil)
|
|
|
451
|
|
|
452 (defun url-copy-file (url &rest args)
|
|
|
453 "Copy a url to the specified filename."
|
|
|
454 nil)
|
|
|
455
|
|
|
456 (defun url-file-directly-accessible-p (url)
|
|
|
457 "Returns t iff the specified URL is directly accessible
|
|
|
458 on your filesystem. (nfs, local file, etc)."
|
|
|
459 (let* ((urlobj (if (vectorp url) url (url-generic-parse-url url)))
|
|
|
460 (type (url-type urlobj)))
|
|
|
461 (and (member type '("file" "ftp"))
|
|
|
462 (not (url-host urlobj)))))
|
|
|
463
|
|
|
464 ;;;###autoload
|
|
|
465 (defun url-file-attributes (url &rest args)
|
|
|
466 "Return a list of attributes of URL.
|
|
|
467 Value is nil if specified file cannot be opened.
|
|
|
468 Otherwise, list elements are:
|
|
|
469 0. t for directory, string (name linked to) for symbolic link, or nil.
|
|
|
470 1. Number of links to file.
|
|
|
471 2. File uid.
|
|
|
472 3. File gid.
|
|
|
473 4. Last access time, as a list of two integers.
|
|
|
474 First integer has high-order 16 bits of time, second has low 16 bits.
|
|
|
475 5. Last modification time, likewise.
|
|
|
476 6. Last status change time, likewise.
|
|
|
477 7. Size in bytes. (-1, if number is out of range).
|
|
|
478 8. File modes, as a string of ten letters or dashes as in ls -l.
|
|
|
479 If URL is on an http server, this will return the content-type if possible.
|
|
|
480 9. t iff file's gid would change if file were deleted and recreated.
|
|
|
481 10. inode number.
|
|
|
482 11. Device number.
|
|
|
483
|
|
|
484 If file does not exist, returns nil."
|
|
|
485 (and url
|
|
|
486 (let* ((urlobj (url-generic-parse-url url))
|
|
|
487 (type (url-type urlobj))
|
|
|
488 (url-automatic-caching nil)
|
|
|
489 (data nil)
|
|
|
490 (exists nil))
|
|
|
491 (cond
|
|
|
492 ((equal type "http")
|
|
|
493 (cond
|
|
|
494 ((not url-be-anal-about-file-attributes)
|
|
|
495 (setq data (list
|
|
|
496 (url-file-directory-p url) ; Directory
|
|
|
497 1 ; number of links to it
|
|
|
498 0 ; UID
|
|
|
499 0 ; GID
|
|
|
500 (cons 0 0) ; Last access time
|
|
|
501 (cons 0 0) ; Last mod. time
|
|
|
502 (cons 0 0) ; Last status time
|
|
|
503 -1 ; file size
|
|
|
504 (mm-extension-to-mime
|
|
|
505 (url-file-extension (url-filename urlobj)))
|
|
|
506 nil ; gid would change
|
|
|
507 0 ; inode number
|
|
|
508 0 ; device number
|
|
|
509 )))
|
|
|
510 (t ; HTTP/1.0, use HEAD
|
|
|
511 (let ((url-request-method "HEAD")
|
|
|
512 (url-request-data nil)
|
|
|
513 (url-working-buffer " *url-temp*"))
|
|
|
514 (save-excursion
|
|
|
515 (condition-case ()
|
|
|
516 (progn
|
|
|
517 (url-retrieve url)
|
|
|
518 (setq data (and
|
|
|
519 (setq exists
|
|
|
520 (cdr
|
|
|
521 (assoc "status"
|
|
|
522 url-current-mime-headers)))
|
|
|
523 (>= exists 200)
|
|
|
524 (< exists 300)
|
|
|
525 (list
|
|
|
526 (url-file-directory-p url) ; Directory
|
|
|
527 1 ; links to
|
|
|
528 0 ; UID
|
|
|
529 0 ; GID
|
|
|
530 (cons 0 0) ; Last access time
|
|
|
531 (cons 0 0) ; Last mod. time
|
|
|
532 (cons 0 0) ; Last status time
|
|
|
533 (or ; Size in bytes
|
|
|
534 (cdr (assoc "content-length"
|
|
|
535 url-current-mime-headers))
|
|
|
536 -1)
|
|
|
537 (or
|
|
|
538 (cdr (assoc "content-type"
|
|
|
539 url-current-mime-headers))
|
|
|
540 (mm-extension-to-mime
|
|
|
541 (url-file-extension
|
|
|
542 (url-filename urlobj)))) ; content-type
|
|
|
543 nil ; gid would change
|
|
|
544 0 ; inode number
|
|
|
545 0 ; device number
|
|
|
546 ))))
|
|
|
547 (error nil))
|
|
|
548 (and (not data)
|
|
|
549 (setq data (list (url-file-directory-p url)
|
|
|
550 1 0 0 (cons 0 0) (cons 0 0) (cons 0 0)
|
|
|
551 -1 (mm-extension-to-mime
|
|
|
552 (url-file-extension
|
|
|
553 url-current-file))
|
|
|
554 nil 0 0)))
|
|
|
555 (kill-buffer " *url-temp*"))))))
|
|
|
556 ((member type '("ftp" "file"))
|
|
|
557 (let ((fname (if (url-host urlobj)
|
|
|
558 (concat "/"
|
|
|
559 (if (url-user urlobj)
|
|
|
560 (concat (url-user urlobj) "@")
|
|
|
561 "")
|
|
|
562 (url-host urlobj) ":"
|
|
|
563 (url-filename urlobj))
|
|
|
564 (url-filename urlobj))))
|
|
|
565 (setq data (or (file-attributes fname) (make-list 12 nil)))
|
|
|
566 (setcar (cdr (cdr (cdr (cdr (cdr (cdr (cdr (cdr data))))))))
|
|
|
567 (mm-extension-to-mime (url-file-extension fname)))))
|
|
|
568 (t nil))
|
|
|
569 data)))
|
|
|
570
|
|
|
571 (defun url-file-name-all-completions (file dirname &rest args)
|
|
|
572 "Return a list of all completions of file name FILE in directory DIR.
|
|
|
573 These are all file names in directory DIR which begin with FILE."
|
|
|
574 ;; need to rewrite
|
|
|
575 )
|
|
|
576
|
|
|
577 (defun url-file-name-completion (file dirname &rest args)
|
|
|
578 "Complete file name FILE in directory DIR.
|
|
|
579 Returns the longest string
|
|
|
580 common to all filenames in DIR that start with FILE.
|
|
|
581 If there is only one and FILE matches it exactly, returns t.
|
|
|
582 Returns nil if DIR contains no name starting with FILE."
|
|
|
583 (apply 'url-file-name-all-completions file dirname args))
|
|
|
584
|
|
|
585 (defun url-file-local-copy (file &rest args)
|
|
|
586 "Copy the file FILE into a temporary file on this machine.
|
|
|
587 Returns the name of the local copy, or nil, if FILE is directly
|
|
|
588 accessible."
|
|
|
589 nil)
|
|
|
590
|
|
|
591 (defun url-insert-file-contents (url &rest args)
|
|
|
592 "Insert the contents of the URL in this buffer."
|
|
|
593 (interactive "sURL: ")
|
|
|
594 (save-excursion
|
|
|
595 (let ((old-asynch url-be-asynchronous))
|
|
|
596 (setq-default url-be-asynchronous nil)
|
|
|
597 (let ((buf (current-buffer))
|
|
|
598 (url-working-buffer (cdr (url-retrieve url))))
|
|
|
599 (setq-default url-be-asynchronous old-asynch)
|
|
88
|
600 (set-buffer url-working-buffer)
|
|
|
601 (url-uncompress)
|
|
14
|
602 (set-buffer buf)
|
|
|
603 (insert-buffer url-working-buffer)
|
|
|
604 (setq buffer-file-name url)
|
|
|
605 (save-excursion
|
|
|
606 (set-buffer url-working-buffer)
|
|
|
607 (set-buffer-modified-p nil))
|
|
|
608 (kill-buffer url-working-buffer)))))
|
|
|
609
|
|
|
610 (defun url-file-directory-p (url &rest args)
|
|
|
611 "Return t iff a url points to a directory"
|
|
|
612 (equal (substring url -1 nil) "/"))
|
|
|
613
|
|
|
614 (defun url-file-exists (url &rest args)
|
|
|
615 "Return t iff a file exists."
|
|
|
616 (let* ((urlobj (url-generic-parse-url url))
|
|
|
617 (type (url-type urlobj))
|
|
|
618 (exists nil))
|
|
|
619 (cond
|
|
|
620 ((equal type "http") ; use head
|
|
|
621 (let ((url-request-method "HEAD")
|
|
|
622 (url-request-data nil)
|
|
|
623 (url-working-buffer " *url-temp*"))
|
|
|
624 (save-excursion
|
|
|
625 (url-retrieve url)
|
|
|
626 (setq exists (or (cdr
|
|
|
627 (assoc "status" url-current-mime-headers)) 500))
|
|
|
628 (kill-buffer " *url-temp*")
|
|
|
629 (setq exists (and (>= exists 200) (< exists 300))))))
|
|
|
630 ((member type '("ftp" "file")) ; file-attributes
|
|
|
631 (let ((fname (if (url-host urlobj)
|
|
|
632 (concat "/"
|
|
|
633 (if (url-user urlobj)
|
|
|
634 (concat (url-user urlobj) "@")
|
|
|
635 "")
|
|
|
636 (url-host urlobj) ":"
|
|
|
637 (url-filename urlobj))
|
|
|
638 (url-filename urlobj))))
|
|
|
639 (setq exists (file-exists-p fname))))
|
|
|
640 (t nil))
|
|
|
641 exists))
|
|
|
642
|
|
|
643 ;;;###autoload
|
|
|
644 (defun url-normalize-url (url)
|
|
|
645 "Return a 'normalized' version of URL. This strips out default port
|
|
|
646 numbers, etc."
|
|
|
647 (let (type data grok retval)
|
|
|
648 (setq data (url-generic-parse-url url)
|
|
|
649 type (url-type data))
|
|
|
650 (if (member type '("www" "about" "mailto" "mailserver" "info"))
|
|
|
651 (setq retval url)
|
|
|
652 (setq retval (url-recreate-url data)))
|
|
|
653 retval))
|
|
|
654
|
|
|
655 ;;;###autoload
|
|
|
656 (defun url-buffer-visiting (url)
|
|
|
657 "Return the name of a buffer (if any) that is visiting URL."
|
|
|
658 (setq url (url-normalize-url url))
|
|
|
659 (let ((bufs (buffer-list))
|
|
|
660 (found nil))
|
|
|
661 (if (condition-case ()
|
|
|
662 (string-match "\\(.*\\)#" url)
|
|
|
663 (error nil))
|
|
|
664 (setq url (url-match url 1)))
|
|
|
665 (while (and bufs (not found))
|
|
|
666 (save-excursion
|
|
|
667 (set-buffer (car bufs))
|
|
|
668 (setq found (if (and
|
|
|
669 (not (string-match " \\*URL-?[0-9]*\\*" (buffer-name (car bufs))))
|
|
|
670 (memq major-mode '(url-mode w3-mode))
|
|
|
671 (equal (url-view-url t) url)) (car bufs) nil)
|
|
|
672 bufs (cdr bufs))))
|
|
|
673 found))
|
|
|
674
|
|
|
675 (defun url-file-size (url &rest args)
|
|
|
676 "Return the size of a file in bytes, or -1 if can't be determined."
|
|
|
677 (let* ((urlobj (url-generic-parse-url url))
|
|
|
678 (type (url-type urlobj))
|
|
|
679 (size -1)
|
|
|
680 (data nil))
|
|
|
681 (cond
|
|
|
682 ((equal type "http") ; use head
|
|
|
683 (let ((url-request-method "HEAD")
|
|
|
684 (url-request-data nil)
|
|
|
685 (url-working-buffer " *url-temp*"))
|
|
|
686 (save-excursion
|
|
|
687 (url-retrieve url)
|
|
|
688 (setq size (or (cdr
|
|
|
689 (assoc "content-length" url-current-mime-headers))
|
|
|
690 -1))
|
|
|
691 (kill-buffer " *url-temp*"))))
|
|
|
692 ((member type '("ftp" "file")) ; file-attributes
|
|
|
693 (let ((fname (if (url-host urlobj)
|
|
|
694 (concat "/"
|
|
|
695 (if (url-user urlobj)
|
|
|
696 (concat (url-user urlobj) "@")
|
|
|
697 "")
|
|
|
698 (url-host urlobj) ":"
|
|
|
699 (url-filename urlobj))
|
|
|
700 (url-filename urlobj))))
|
|
|
701 (setq data (file-attributes fname)
|
|
|
702 size (nth 7 data))))
|
|
|
703 (t nil))
|
|
|
704 (cond
|
|
|
705 ((stringp size) (string-to-int size))
|
|
|
706 ((integerp size) size)
|
|
|
707 ((null size) -1)
|
|
|
708 (t -1))))
|
|
|
709
|
|
|
710 (defun url-generate-new-buffer-name (start)
|
|
|
711 "Create a new buffer name based on START."
|
|
|
712 (let ((x 1)
|
|
|
713 name)
|
|
|
714 (if (not (get-buffer start))
|
|
|
715 start
|
|
|
716 (progn
|
|
|
717 (setq name (format "%s<%d>" start x))
|
|
|
718 (while (get-buffer name)
|
|
|
719 (setq x (1+ x)
|
|
|
720 name (format "%s<%d>" start x)))
|
|
|
721 name))))
|
|
|
722
|
|
|
723 (defun url-generate-unique-filename (&optional fmt)
|
|
|
724 "Generate a unique filename in url-temporary-directory"
|
|
|
725 (if (not fmt)
|
|
|
726 (let ((base (format "url-tmp.%d" (user-real-uid)))
|
|
|
727 (fname "")
|
|
|
728 (x 0))
|
|
|
729 (setq fname (format "%s%d" base x))
|
|
|
730 (while (file-exists-p (expand-file-name fname url-temporary-directory))
|
|
|
731 (setq x (1+ x)
|
|
|
732 fname (concat base (int-to-string x))))
|
|
|
733 (expand-file-name fname url-temporary-directory))
|
|
|
734 (let ((base (concat "url" (int-to-string (user-real-uid))))
|
|
|
735 (fname "")
|
|
|
736 (x 0))
|
|
|
737 (setq fname (format fmt (concat base (int-to-string x))))
|
|
|
738 (while (file-exists-p (expand-file-name fname url-temporary-directory))
|
|
|
739 (setq x (1+ x)
|
|
|
740 fname (format fmt (concat base (int-to-string x)))))
|
|
|
741 (expand-file-name fname url-temporary-directory))))
|
|
|
742
|
|
|
743 (defun url-lazy-message (&rest args)
|
|
|
744 "Just like `message', but is a no-op if called more than once a second.
|
|
|
745 Will not do anything if url-show-status is nil."
|
|
|
746 (if (or (null url-show-status)
|
|
|
747 (= url-lazy-message-time
|
|
|
748 (setq url-lazy-message-time (nth 1 (current-time)))))
|
|
|
749 nil
|
|
|
750 (apply 'message args)))
|
|
|
751
|
|
|
752
|
|
|
753 (defun url-kill-process (proc)
|
|
|
754 "Kill the process PROC - knows about all the various gateway types,
|
|
|
755 and acts accordingly."
|
|
82
|
756 (delete-process proc))
|
|
14
|
757
|
|
|
758 (defun url-accept-process-output (proc)
|
|
|
759 "Allow any pending output from subprocesses to be read by Emacs.
|
|
|
760 It is read into the process' buffers or given to their filter functions.
|
|
|
761 Where possible, this will not exit until some output is received from PROC,
|
|
|
762 or 1 second has elapsed."
|
|
|
763 (accept-process-output proc 1))
|
|
|
764
|
|
|
765 (defun url-process-status (proc)
|
|
|
766 "Return the process status of a url buffer"
|
|
82
|
767 (process-status proc))
|
|
14
|
768
|
|
|
769
|
|
|
770 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
771 ;;; Miscellaneous functions
|
|
|
772 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
773 (defun url-setup-privacy-info ()
|
|
|
774 (interactive)
|
|
|
775 (setq url-system-type
|
|
|
776 (cond
|
|
|
777 ((or (eq url-privacy-level 'paranoid)
|
|
|
778 (and (listp url-privacy-level)
|
|
|
779 (memq 'os url-privacy-level)))
|
|
|
780 nil)
|
|
|
781 ((eq system-type 'Apple-Macintosh) "Macintosh")
|
|
|
782 ((eq system-type 'next-mach) "NeXT")
|
|
|
783 ((eq system-type 'windows-nt) "Windows-NT; 32bit")
|
|
|
784 ((eq system-type 'ms-windows) "Windows; 16bit")
|
|
|
785 ((eq system-type 'ms-dos) "MS-DOS; 32bit")
|
|
|
786 ((and (eq system-type 'vax-vms) (device-type))
|
|
|
787 "VMS; X11")
|
|
|
788 ((eq system-type 'vax-vms) "VMS; TTY")
|
|
|
789 ((eq (device-type) 'x) "X11")
|
|
|
790 ((eq (device-type) 'ns) "NeXTStep")
|
|
|
791 ((eq (device-type) 'pm) "OS/2")
|
|
|
792 ((eq (device-type) 'win32) "Windows; 32bit")
|
|
|
793 ((eq (device-type) 'tty) "(Unix?); TTY")
|
|
|
794 (t "UnkownPlatform")))
|
|
|
795
|
|
|
796 ;; Set up the entity definition for PGP and PEM authentication
|
|
|
797 (setq url-pgp/pem-entity (or url-pgp/pem-entity
|
|
|
798 user-mail-address
|
|
|
799 (format "%s@%s" (user-real-login-name)
|
|
|
800 (system-name))))
|
|
|
801
|
|
|
802 (setq url-personal-mail-address (or url-personal-mail-address
|
|
|
803 url-pgp/pem-entity
|
|
|
804 user-mail-address))
|
|
|
805
|
|
|
806 (if (or (memq url-privacy-level '(paranoid high))
|
|
|
807 (and (listp url-privacy-level)
|
|
|
808 (memq 'email url-privacy-level)))
|
|
|
809 (setq url-personal-mail-address nil))
|
|
|
810
|
|
|
811 (if (or (eq url-privacy-level 'paranoid)
|
|
|
812 (and (listp url-privacy-level)
|
|
|
813 (memq 'os url-privacy-level)))
|
|
|
814 (setq url-os-type nil)
|
|
|
815 (let ((vers (emacs-version)))
|
|
|
816 (if (string-match "(\\([^, )]+\\))$" vers)
|
|
|
817 (setq url-os-type (url-match vers 1))
|
|
|
818 (setq url-os-type (symbol-name system-type))))))
|
|
|
819
|
|
|
820 (defun url-handle-no-scheme (url)
|
|
|
821 (let ((temp url-registered-protocols)
|
|
|
822 (found nil))
|
|
|
823 (while (and temp (not found))
|
|
|
824 (if (and (not (member (car (car temp)) '("auto" "www")))
|
|
|
825 (string-match (concat "^" (car (car temp)) "\\.")
|
|
|
826 url))
|
|
|
827 (setq found t)
|
|
|
828 (setq temp (cdr temp))))
|
|
|
829 (cond
|
|
|
830 (found ; Found something like ftp.spry.com
|
|
|
831 (url-retrieve (concat (car (car temp)) "://" url)))
|
|
|
832 ((string-match "^www\\." url)
|
|
|
833 (url-retrieve (concat "http://" url)))
|
|
|
834 ((string-match "\\(\\.[^\\.]+\\)\\(\\.[^\\.]+\\)" url)
|
|
|
835 ;; Ok, we have at least two dots in the filename, just stick http on it
|
|
|
836 (url-retrieve (concat "http://" url)))
|
|
|
837 (t
|
|
|
838 (url-retrieve (concat "http://www." url ".com"))))))
|
|
|
839
|
|
|
840 (defun url-setup-save-timer ()
|
|
|
841 "Reset the history list timer."
|
|
|
842 (interactive)
|
|
|
843 (cond
|
|
|
844 ((featurep 'itimer)
|
|
|
845 (if (get-itimer "url-history-saver")
|
|
|
846 (delete-itimer (get-itimer "url-history-saver")))
|
|
|
847 (start-itimer "url-history-saver" 'url-write-global-history
|
|
|
848 url-global-history-save-interval
|
|
|
849 url-global-history-save-interval))
|
|
|
850 ((fboundp 'run-at-time)
|
|
|
851 (run-at-time url-global-history-save-interval
|
|
|
852 url-global-history-save-interval
|
|
|
853 'url-write-global-history))
|
|
|
854 (t nil)))
|
|
|
855
|
|
|
856 (defvar url-download-minor-mode nil)
|
|
|
857
|
|
|
858 (defun url-download-minor-mode (on)
|
|
|
859 (setq url-download-minor-mode (if on
|
|
|
860 (1+ (or url-download-minor-mode 0))
|
|
|
861 (1- (or url-download-minor-mode 1))))
|
|
|
862 (if (<= url-download-minor-mode 0)
|
|
|
863 (setq url-download-minor-mode nil)))
|
|
|
864
|
|
|
865 (defun url-do-setup ()
|
|
|
866 "Do setup - this is to avoid conflict with user settings when URL is
|
|
|
867 dumped with emacs."
|
|
|
868 (if url-setup-done
|
|
|
869 nil
|
|
|
870
|
|
|
871 (add-minor-mode 'url-download-minor-mode " Webbing" nil)
|
|
|
872
|
|
|
873 ;; Make OS/2 happy
|
|
|
874 (setq tcp-binary-process-input-services
|
|
|
875 (append '("http" "80")
|
|
|
876 tcp-binary-process-input-services))
|
|
|
877
|
|
|
878 ;; Register all the protocols we can handle
|
|
|
879 (url-register-protocol 'file)
|
|
|
880 (url-register-protocol 'ftp nil nil "21")
|
|
|
881 (url-register-protocol 'gopher nil nil "70")
|
|
|
882 (url-register-protocol 'http nil nil "80")
|
|
|
883 (url-register-protocol 'https nil nil "443")
|
|
|
884 (url-register-protocol 'nfs nil nil "2049")
|
|
|
885 (url-register-protocol 'info nil 'url-identity-expander)
|
|
|
886 (url-register-protocol 'mailserver nil 'url-identity-expander)
|
|
|
887 (url-register-protocol 'finger nil 'url-identity-expander "79")
|
|
|
888 (url-register-protocol 'mailto nil 'url-identity-expander)
|
|
|
889 (url-register-protocol 'news nil 'url-identity-expander "119")
|
|
|
890 (url-register-protocol 'nntp nil 'url-identity-expander "119")
|
|
|
891 (url-register-protocol 'irc nil 'url-identity-expander "6667")
|
|
82
|
892 (url-register-protocol 'data nil 'url-identity-expander)
|
|
14
|
893 (url-register-protocol 'rlogin)
|
|
|
894 (url-register-protocol 'shttp nil nil "80")
|
|
|
895 (url-register-protocol 'telnet)
|
|
|
896 (url-register-protocol 'tn3270)
|
|
|
897 (url-register-protocol 'wais)
|
|
|
898 (url-register-protocol 'x-exec)
|
|
|
899 (url-register-protocol 'proxy)
|
|
|
900 (url-register-protocol 'auto 'url-handle-no-scheme)
|
|
|
901
|
|
|
902 ;; Register all the authentication schemes we can handle
|
|
|
903 (url-register-auth-scheme "basic" nil 4)
|
|
|
904 (url-register-auth-scheme "digest" nil 7)
|
|
|
905
|
|
|
906 ;; Filename handler stuff for emacsen that support it
|
|
|
907 (url-setup-file-name-handlers)
|
|
|
908
|
|
|
909 (setq url-cookie-file
|
|
|
910 (or url-cookie-file
|
|
|
911 (expand-file-name "~/.w3cookies")))
|
|
|
912
|
|
|
913 (setq url-global-history-file
|
|
|
914 (or url-global-history-file
|
|
|
915 (and (memq system-type '(ms-dos ms-windows))
|
|
|
916 (expand-file-name "~/mosaic.hst"))
|
|
|
917 (and (memq system-type '(axp-vms vax-vms))
|
|
|
918 (expand-file-name "~/mosaic.global-history"))
|
|
|
919 (condition-case ()
|
|
|
920 (expand-file-name "~/.mosaic-global-history")
|
|
|
921 (error nil))))
|
|
|
922
|
|
|
923 ;; Parse the global history file if it exists, so that it can be used
|
|
|
924 ;; for URL completion, etc.
|
|
|
925 (if (and url-global-history-file
|
|
|
926 (file-exists-p url-global-history-file))
|
|
|
927 (url-parse-global-history))
|
|
|
928
|
|
|
929 ;; Setup save timer
|
|
|
930 (and url-global-history-save-interval (url-setup-save-timer))
|
|
|
931
|
|
|
932 (if (and url-cookie-file
|
|
|
933 (file-exists-p url-cookie-file))
|
|
|
934 (url-cookie-parse-file url-cookie-file))
|
|
|
935
|
|
|
936 ;; Read in proxy gateways
|
|
|
937 (let ((noproxy (and (not (assoc "no_proxy" url-proxy-services))
|
|
|
938 (or (getenv "NO_PROXY")
|
|
|
939 (getenv "no_PROXY")
|
|
|
940 (getenv "no_proxy")))))
|
|
|
941 (if noproxy
|
|
|
942 (setq url-proxy-services
|
|
|
943 (cons (cons "no_proxy"
|
|
|
944 (concat "\\("
|
|
|
945 (mapconcat
|
|
|
946 (function
|
|
|
947 (lambda (x)
|
|
|
948 (cond
|
|
|
949 ((= x ?,) "\\|")
|
|
|
950 ((= x ? ) "")
|
|
|
951 ((= x ?.) (regexp-quote "."))
|
|
|
952 ((= x ?*) ".*")
|
|
|
953 ((= x ??) ".")
|
|
|
954 (t (char-to-string x)))))
|
|
|
955 noproxy "") "\\)"))
|
|
|
956 url-proxy-services))))
|
|
|
957
|
|
|
958 ;; Set the url-use-transparent with decent defaults
|
|
|
959 (if (not (eq (device-type) 'tty))
|
|
|
960 (setq url-use-transparent nil))
|
|
|
961 (and url-use-transparent (require 'transparent))
|
|
|
962
|
|
|
963 ;; Set the password entry funtion based on user defaults or guess
|
|
|
964 ;; based on which remote-file-access package they are using.
|
|
|
965 (cond
|
|
|
966 (url-passwd-entry-func nil) ; Already been set
|
|
|
967 ((boundp 'read-passwd) ; Use secure password if available
|
|
|
968 (setq url-passwd-entry-func 'read-passwd))
|
|
|
969 ((or (featurep 'efs) ; Using EFS
|
|
|
970 (featurep 'efs-auto)) ; or autoloading efs
|
|
|
971 (if (not (fboundp 'read-passwd))
|
|
|
972 (autoload 'read-passwd "passwd" "Read in a password" nil))
|
|
|
973 (setq url-passwd-entry-func 'read-passwd))
|
|
|
974 ((or (featurep 'ange-ftp) ; Using ange-ftp
|
|
|
975 (and (boundp 'file-name-handler-alist)
|
|
|
976 (not (string-match "Lucid" (emacs-version)))))
|
|
|
977 (setq url-passwd-entry-func 'ange-ftp-read-passwd))
|
|
|
978 (t
|
|
|
979 (url-warn 'security
|
|
|
980 "Can't determine how to read passwords, winging it.")))
|
|
|
981
|
|
|
982 ;; Set up the news service if they haven't done so
|
|
|
983 (setq url-news-server
|
|
|
984 (cond
|
|
|
985 (url-news-server url-news-server)
|
|
|
986 ((and (boundp 'gnus-default-nntp-server)
|
|
|
987 (not (equal "" gnus-default-nntp-server)))
|
|
|
988 gnus-default-nntp-server)
|
|
|
989 ((and (boundp 'gnus-nntp-server)
|
|
|
990 (not (null gnus-nntp-server))
|
|
|
991 (not (equal "" gnus-nntp-server)))
|
|
|
992 gnus-nntp-server)
|
|
|
993 ((and (boundp 'nntp-server-name)
|
|
|
994 (not (null nntp-server-name))
|
|
|
995 (not (equal "" nntp-server-name)))
|
|
|
996 nntp-server-name)
|
|
|
997 ((getenv "NNTPSERVER") (getenv "NNTPSERVER"))
|
|
|
998 (t "news")))
|
|
|
999
|
|
|
1000 ;; Set up the MIME accept string if they haven't got it hardcoded yet
|
|
|
1001 (or url-mime-accept-string
|
|
|
1002 (setq url-mime-accept-string (url-parse-viewer-types)))
|
|
|
1003 (or url-mime-encoding-string
|
|
|
1004 (setq url-mime-encoding-string
|
|
|
1005 (mapconcat 'car
|
|
|
1006 mm-content-transfer-encodings
|
|
|
1007 ", ")))
|
|
|
1008
|
|
|
1009 (url-setup-privacy-info)
|
|
|
1010 (run-hooks 'url-load-hook)
|
|
|
1011 (setq url-setup-done t)))
|
|
|
1012
|
|
|
1013 (defun url-cache-file-writable-p (file)
|
|
|
1014 "Follows the documentation of file-writable-p, unlike file-writable-p."
|
|
|
1015 (and (file-writable-p file)
|
|
|
1016 (if (file-exists-p file)
|
|
|
1017 (not (file-directory-p file))
|
|
|
1018 (file-directory-p (file-name-directory file)))))
|
|
|
1019
|
|
|
1020 (defun url-prepare-cache-for-file (file)
|
|
|
1021 "Makes it possible to cache data in FILE.
|
|
|
1022 Creates any necessary parent directories, deleting any non-directory files
|
|
|
1023 that would stop this. Returns nil if parent directories can not be
|
|
|
1024 created. If FILE already exists as a non-directory, it changes
|
|
|
1025 permissions of FILE or deletes FILE to make it possible to write a new
|
|
|
1026 version of FILE. Returns nil if this can not be done. Returns nil if
|
|
|
1027 FILE already exists as a directory. Otherwise, returns t, indicating that
|
|
|
1028 FILE can be created or overwritten."
|
|
|
1029
|
|
|
1030 ;; COMMENT: We don't delete directories because that requires
|
|
|
1031 ;; recursively deleting the directories's contents, which might
|
|
|
1032 ;; eliminate a substantial portion of the cache.
|
|
|
1033
|
|
|
1034 (cond
|
|
|
1035 ((url-cache-file-writable-p file)
|
|
|
1036 t)
|
|
|
1037 ((file-directory-p file)
|
|
|
1038 nil)
|
|
|
1039 (t
|
|
|
1040 (catch 'upcff-tag
|
|
|
1041 (let ((dir (file-name-directory file))
|
|
|
1042 dir-parent dir-last-component)
|
|
|
1043 (if (string-equal dir file)
|
|
|
1044 ;; *** Should I have a warning here?
|
|
|
1045 ;; FILE must match a pattern like /foo/bar/, indicating it is a
|
|
|
1046 ;; name only suitable for a directory. So presume we won't be
|
|
|
1047 ;; able to overwrite FILE and return nil.
|
|
|
1048 (throw 'upcff-tag nil))
|
|
|
1049
|
|
|
1050 ;; Make sure the containing directory exists, or throw a failure
|
|
|
1051 ;; if we can't create it.
|
|
|
1052 (if (file-directory-p dir)
|
|
|
1053 nil
|
|
|
1054 (or (fboundp 'make-directory)
|
|
|
1055 (throw 'upcff-tag nil))
|
|
|
1056 (make-directory dir t)
|
|
|
1057 ;; make-directory silently fails if there is an obstacle, so
|
|
|
1058 ;; we must verify its results.
|
|
|
1059 (if (file-directory-p dir)
|
|
|
1060 nil
|
|
|
1061 ;; Look at prefixes of the path to find the obstacle that is
|
|
|
1062 ;; stopping us from making the directory. Unfortunately, there
|
|
|
1063 ;; is no portable function in Emacs to find the parent directory
|
|
|
1064 ;; of a *directory*. So this code may not work on VMS.
|
|
|
1065 (while (progn
|
|
|
1066 (if (eq ?/ (aref dir (1- (length dir))))
|
|
|
1067 (setq dir (substring dir 0 -1))
|
|
|
1068 ;; Maybe we're on VMS where the syntax is different.
|
|
|
1069 (throw 'upcff-tag nil))
|
|
|
1070 (setq dir-parent (file-name-directory dir))
|
|
|
1071 (not (file-directory-p dir-parent)))
|
|
|
1072 (setq dir dir-parent))
|
|
|
1073 ;; We have found the longest path prefix that exists as a
|
|
|
1074 ;; directory. Deal with any obstacles in this directory.
|
|
|
1075 (if (file-exists-p dir)
|
|
|
1076 (condition-case nil
|
|
|
1077 (delete-file dir)
|
|
|
1078 (error (throw 'upcff-tag nil))))
|
|
|
1079 (if (file-exists-p dir)
|
|
|
1080 (throw 'upcff-tag nil))
|
|
|
1081 ;; Try making the directory again.
|
|
|
1082 (setq dir (file-name-directory file))
|
|
|
1083 (make-directory dir t)
|
|
|
1084 (or (file-directory-p dir)
|
|
|
1085 (throw 'upcff-tag nil))))
|
|
|
1086
|
|
|
1087 ;; The containing directory exists. Let's see if there is
|
|
|
1088 ;; something in the way in this directory.
|
|
|
1089 (if (url-cache-file-writable-p file)
|
|
|
1090 (throw 'upcff-tag t)
|
|
|
1091 (condition-case nil
|
|
|
1092 (delete-file file)
|
|
|
1093 (error (throw 'upcff-tag nil))))
|
|
|
1094
|
|
|
1095 ;; The return value, if we get this far.
|
|
|
1096 (url-cache-file-writable-p file))))))
|
|
|
1097
|
|
|
1098 (defun url-store-in-cache (&optional buff)
|
|
|
1099 "Store buffer BUFF in the cache"
|
|
|
1100 (if (or (not (get-buffer buff))
|
|
|
1101 (member url-current-type '("www" "about" "https" "shttp"
|
|
|
1102 "news" "mailto"))
|
|
|
1103 (and (member url-current-type '("file" "ftp" nil))
|
|
|
1104 (not url-current-server))
|
|
|
1105 )
|
|
|
1106 nil
|
|
|
1107 (save-excursion
|
|
|
1108 (and buff (set-buffer buff))
|
|
|
1109 (let* ((fname (url-create-cached-filename (url-view-url t)))
|
|
|
1110 (fname-hdr (concat (if (memq system-type '(ms-windows ms-dos os2))
|
|
|
1111 (url-file-extension fname t)
|
|
|
1112 fname) ".hdr"))
|
|
|
1113 (info (mapcar (function (lambda (var)
|
|
|
1114 (cons (symbol-name var)
|
|
|
1115 (symbol-value var))))
|
|
|
1116 '( url-current-content-length
|
|
|
1117 url-current-file
|
|
|
1118 url-current-isindex
|
|
|
1119 url-current-mime-encoding
|
|
|
1120 url-current-mime-headers
|
|
|
1121 url-current-mime-type
|
|
|
1122 url-current-port
|
|
|
1123 url-current-server
|
|
|
1124 url-current-type
|
|
|
1125 url-current-user
|
|
|
1126 ))))
|
|
|
1127 (cond ((and (url-prepare-cache-for-file fname)
|
|
|
1128 (url-prepare-cache-for-file fname-hdr))
|
|
|
1129 (write-region (point-min) (point-max) fname nil 5)
|
|
|
1130 (set-buffer (get-buffer-create " *cache-tmp*"))
|
|
|
1131 (erase-buffer)
|
|
|
1132 (insert "(setq ")
|
|
|
1133 (mapcar
|
|
|
1134 (function
|
|
|
1135 (lambda (x)
|
|
|
1136 (insert (car x) " "
|
|
|
1137 (cond ((null (setq x (cdr x))) "nil")
|
|
|
1138 ((stringp x) (prin1-to-string x))
|
|
|
1139 ((listp x) (concat "'" (prin1-to-string x)))
|
|
|
1140 ((numberp x) (int-to-string x))
|
|
|
1141 (t "'???")) "\n")))
|
|
|
1142 info)
|
|
|
1143 (insert ")\n")
|
|
|
1144 (write-region (point-min) (point-max) fname-hdr nil 5)))))))
|
|
|
1145
|
|
|
1146
|
|
|
1147 (defun url-is-cached (url)
|
|
|
1148 "Return non-nil if the URL is cached."
|
|
|
1149 (let* ((fname (url-create-cached-filename url))
|
|
|
1150 (attribs (file-attributes fname)))
|
|
|
1151 (and fname ; got a filename
|
|
|
1152 (file-exists-p fname) ; file exists
|
|
|
1153 (not (eq (nth 0 attribs) t)) ; Its not a directory
|
|
|
1154 (nth 5 attribs)))) ; Can get last mod-time
|
|
|
1155
|
|
|
1156 (defun url-create-cached-filename-using-md5 (url)
|
|
|
1157 (if url
|
|
|
1158 (expand-file-name (md5 url)
|
|
|
1159 (concat url-temporary-directory "/"
|
|
|
1160 (user-real-login-name)))))
|
|
|
1161
|
|
|
1162 (defun url-create-cached-filename (url)
|
|
|
1163 "Return a filename in the local cache for URL"
|
|
|
1164 (if url
|
|
|
1165 (let* ((url url)
|
|
|
1166 (urlobj (if (vectorp url)
|
|
|
1167 url
|
|
|
1168 (url-generic-parse-url url)))
|
|
|
1169 (protocol (url-type urlobj))
|
|
|
1170 (hostname (url-host urlobj))
|
|
|
1171 (host-components
|
|
|
1172 (cons
|
|
|
1173 (user-real-login-name)
|
|
|
1174 (cons (or protocol "file")
|
|
|
1175 (nreverse
|
|
|
1176 (delq nil
|
|
|
1177 (mm-string-to-tokens
|
|
|
1178 (or hostname "localhost") ?.))))))
|
|
|
1179 (fname (url-filename urlobj)))
|
|
|
1180 (if (and fname (/= (length fname) 0) (= (aref fname 0) ?/))
|
|
|
1181 (setq fname (substring fname 1 nil)))
|
|
|
1182 (if fname
|
|
|
1183 (let ((slash nil))
|
|
|
1184 (setq fname
|
|
|
1185 (mapconcat
|
|
|
1186 (function
|
|
|
1187 (lambda (x)
|
|
|
1188 (cond
|
|
|
1189 ((and (= ?/ x) slash)
|
|
|
1190 (setq slash nil)
|
|
|
1191 "%2F")
|
|
|
1192 ((= ?/ x)
|
|
|
1193 (setq slash t)
|
|
|
1194 "/")
|
|
|
1195 (t
|
|
|
1196 (setq slash nil)
|
|
|
1197 (char-to-string x))))) fname ""))))
|
|
|
1198
|
|
|
1199 (if (and fname (memq system-type '(ms-windows ms-dos windows-nt))
|
|
|
1200 (string-match "\\([A-Za-z]\\):[/\\]" fname))
|
|
|
1201 (setq fname (concat (url-match fname 1) "/"
|
|
|
1202 (substring fname (match-end 0)))))
|
|
|
1203
|
|
|
1204 (setq fname (and fname
|
|
|
1205 (mapconcat
|
|
|
1206 (function (lambda (x)
|
|
|
1207 (if (= x ?~) "" (char-to-string x))))
|
|
|
1208 fname ""))
|
|
|
1209 fname (cond
|
|
|
1210 ((null fname) nil)
|
|
|
1211 ((or (string= "" fname) (string= "/" fname))
|
|
|
1212 url-directory-index-file)
|
|
|
1213 ((= (string-to-char fname) ?/)
|
|
|
1214 (if (string= (substring fname -1 nil) "/")
|
|
|
1215 (concat fname url-directory-index-file)
|
|
|
1216 (substring fname 1 nil)))
|
|
|
1217 (t
|
|
|
1218 (if (string= (substring fname -1 nil) "/")
|
|
|
1219 (concat fname url-directory-index-file)
|
|
|
1220 fname))))
|
|
|
1221
|
|
|
1222 ;; Honor hideous 8.3 filename limitations on dos and windows
|
|
|
1223 ;; we don't have to worry about this in Windows NT/95 (or OS/2?)
|
|
|
1224 (if (and fname (memq system-type '(ms-windows ms-dos)))
|
|
|
1225 (let ((base (url-file-extension fname t))
|
|
|
1226 (ext (url-file-extension fname nil)))
|
|
|
1227 (setq fname (concat (substring base 0 (min 8 (length base)))
|
|
|
1228 (substring ext 0 (min 4 (length ext)))))
|
|
|
1229 (setq host-components
|
|
|
1230 (mapcar
|
|
|
1231 (function
|
|
|
1232 (lambda (x)
|
|
|
1233 (if (> (length x) 8)
|
|
|
1234 (concat
|
|
|
1235 (substring x 0 8) "."
|
|
|
1236 (substring x 8 (min (length x) 11)))
|
|
|
1237 x)))
|
|
|
1238 host-components))))
|
|
|
1239
|
|
|
1240 (and fname
|
|
|
1241 (expand-file-name fname
|
|
|
1242 (expand-file-name
|
|
|
1243 (mapconcat 'identity host-components "/")
|
|
|
1244 url-temporary-directory))))))
|
|
|
1245
|
|
|
1246 (defun url-extract-from-cache (fnam)
|
|
|
1247 "Extract FNAM from the local disk cache"
|
|
|
1248 (set-buffer (get-buffer-create url-working-buffer))
|
|
|
1249 (erase-buffer)
|
|
|
1250 (setq url-current-mime-viewer nil)
|
|
|
1251 (insert-file-contents-literally fnam)
|
|
|
1252 (load (concat (if (memq system-type '(ms-windows ms-dos os2))
|
|
|
1253 (url-file-extension fnam t)
|
|
|
1254 fnam) ".hdr") t t))
|
|
|
1255
|
|
|
1256 ;;;###autoload
|
|
|
1257 (defun url-get-url-at-point (&optional pt)
|
|
|
1258 "Get the URL closest to point, but don't change your
|
|
|
1259 position. Has a preference for looking backward when not
|
|
|
1260 directly on a symbol."
|
|
|
1261 ;; Not at all perfect - point must be right in the name.
|
|
|
1262 (save-excursion
|
|
|
1263 (if pt (goto-char pt))
|
|
|
1264 (let ((filename-chars "%.?@a-zA-Z0-9---()_/:~=&") start url)
|
|
|
1265 (save-excursion
|
|
|
1266 ;; first see if you're just past a filename
|
|
|
1267 (if (not (eobp))
|
|
|
1268 (if (looking-at "[] \t\n[{}()]") ; whitespace or some parens
|
|
|
1269 (progn
|
|
|
1270 (skip-chars-backward " \n\t\r({[]})")
|
|
|
1271 (if (not (bobp))
|
|
|
1272 (backward-char 1)))))
|
|
|
1273 (if (string-match (concat "[" filename-chars "]")
|
|
|
1274 (char-to-string (following-char)))
|
|
|
1275 (progn
|
|
|
1276 (skip-chars-backward filename-chars)
|
|
|
1277 (setq start (point))
|
|
|
1278 (skip-chars-forward filename-chars))
|
|
|
1279 (setq start (point)))
|
|
|
1280 (setq url (if (fboundp 'buffer-substring-no-properties)
|
|
|
1281 (buffer-substring-no-properties start (point))
|
|
|
1282 (buffer-substring start (point)))))
|
|
|
1283 (if (string-match "^URL:" url)
|
|
|
1284 (setq url (substring url 4 nil)))
|
|
|
1285 (if (string-match "\\.$" url)
|
|
|
1286 (setq url (substring url 0 -1)))
|
|
|
1287 (if (not (string-match url-nonrelative-link url))
|
|
|
1288 (setq url nil))
|
|
|
1289 url)))
|
|
|
1290
|
|
|
1291 (defun url-eat-trailing-space (x)
|
|
|
1292 ;; Remove spaces/tabs at the end of a string
|
|
|
1293 (let ((y (1- (length x)))
|
|
|
1294 (skip-chars (list ? ?\t ?\n)))
|
|
|
1295 (while (and (>= y 0) (memq (aref x y) skip-chars))
|
|
|
1296 (setq y (1- y)))
|
|
|
1297 (substring x 0 (1+ y))))
|
|
|
1298
|
|
|
1299 (defun url-strip-leading-spaces (x)
|
|
|
1300 ;; Remove spaces at the front of a string
|
|
|
1301 (let ((y (1- (length x)))
|
|
|
1302 (z 0)
|
|
|
1303 (skip-chars (list ? ?\t ?\n)))
|
|
|
1304 (while (and (<= z y) (memq (aref x z) skip-chars))
|
|
|
1305 (setq z (1+ z)))
|
|
|
1306 (substring x z nil)))
|
|
|
1307
|
|
|
1308 (defun url-convert-newlines-to-spaces (x)
|
|
|
1309 "Convert newlines and carriage returns embedded in a string into spaces,
|
|
|
1310 and swallow following whitespace.
|
|
|
1311 The argument is not side-effected, but may be returned by this function."
|
|
|
1312 (if (string-match "[\n\r]+\\s-*" x) ; [\\n\\r\\t ]
|
|
|
1313 (concat (substring x 0 (match-beginning 0)) " "
|
|
|
1314 (url-convert-newlines-to-spaces
|
|
|
1315 (substring x (match-end 0))))
|
|
|
1316 x))
|
|
|
1317
|
|
|
1318 ;; Test cases
|
|
|
1319 ;; (url-convert-newlines-to-spaces "foo bar") ; nothing happens
|
|
|
1320 ;; (url-convert-newlines-to-spaces "foo\n \t bar") ; whitespace converted
|
|
|
1321 ;;
|
|
|
1322 ;; This implementation doesn't mangle the match-data, is fast, and doesn't
|
|
|
1323 ;; create garbage, but it leaves whitespace.
|
|
|
1324 ;; (defun url-convert-newlines-to-spaces (x)
|
|
|
1325 ;; "Convert newlines and carriage returns embedded in a string into spaces.
|
|
|
1326 ;; The string is side-effected, then returned."
|
|
|
1327 ;; (let ((i 0)
|
|
|
1328 ;; (limit (length x)))
|
|
|
1329 ;; (while (< i limit)
|
|
|
1330 ;; (if (or (= ?\n (aref x i))
|
|
|
1331 ;; (= ?\r (aref x i)))
|
|
|
1332 ;; (aset x i ? ))
|
|
|
1333 ;; (setq i (1+ i)))
|
|
|
1334 ;; x))
|
|
|
1335
|
|
|
1336 (defun url-expand-file-name (url &optional default)
|
|
|
1337 "Convert URL to a fully specified URL, and canonicalize it.
|
|
|
1338 Second arg DEFAULT is a URL to start with if URL is relative.
|
|
|
1339 If DEFAULT is nil or missing, the current buffer's URL is used.
|
|
|
1340 Path components that are `.' are removed, and
|
|
|
1341 path components followed by `..' are removed, along with the `..' itself."
|
|
|
1342 (if url
|
|
|
1343 (setq url (mapconcat (function (lambda (x)
|
|
86
|
1344 (if (memq x '(? ?\n ?\r))
|
|
82
|
1345 ""
|
|
|
1346 (char-to-string x))))
|
|
14
|
1347 (url-strip-leading-spaces
|
|
|
1348 (url-eat-trailing-space url)) "")))
|
|
|
1349 (cond
|
|
|
1350 ((null url) nil) ; Something hosed! Be graceful
|
|
|
1351 ((string-match "^#" url) ; Offset link, use it raw
|
|
|
1352 url)
|
|
|
1353 (t
|
|
|
1354 (let* ((urlobj (url-generic-parse-url url))
|
|
|
1355 (inhibit-file-name-handlers t)
|
|
|
1356 (defobj (cond
|
|
|
1357 ((vectorp default) default)
|
|
|
1358 (default (url-generic-parse-url default))
|
|
|
1359 (url-current-object url-current-object)
|
|
|
1360 (t (url-generic-parse-url (url-view-url t)))))
|
|
|
1361 (expander (cdr-safe
|
|
|
1362 (cdr-safe
|
|
|
1363 (assoc (or (url-type urlobj)
|
|
|
1364 (url-type defobj))
|
|
|
1365 url-registered-protocols)))))
|
|
|
1366 (if (string-match "^//" url)
|
|
|
1367 (setq urlobj (url-generic-parse-url (concat (url-type defobj) ":"
|
|
|
1368 url))))
|
|
|
1369 (if (fboundp expander)
|
|
|
1370 (funcall expander urlobj defobj)
|
|
|
1371 (message "Unknown URL scheme: %s" (or (url-type urlobj)
|
|
|
1372 (url-type defobj)))
|
|
|
1373 (url-identity-expander urlobj defobj))
|
|
|
1374 (url-recreate-url urlobj)))))
|
|
|
1375
|
|
|
1376 (defun url-default-expander (urlobj defobj)
|
|
|
1377 ;; The default expansion routine - urlobj is modified by side effect!
|
|
|
1378 (url-set-type urlobj (or (url-type urlobj) (url-type defobj)))
|
|
|
1379 (url-set-port urlobj (or (url-port urlobj)
|
|
|
1380 (and (string= (url-type urlobj)
|
|
|
1381 (url-type defobj))
|
|
|
1382 (url-port defobj))))
|
|
|
1383 (if (not (string= "file" (url-type urlobj)))
|
|
|
1384 (url-set-host urlobj (or (url-host urlobj) (url-host defobj))))
|
|
|
1385 (if (string= "ftp" (url-type urlobj))
|
|
|
1386 (url-set-user urlobj (or (url-user urlobj) (url-user defobj))))
|
|
|
1387 (if (string= (url-filename urlobj) "")
|
|
|
1388 (url-set-filename urlobj "/"))
|
|
|
1389 (if (string-match "^/" (url-filename urlobj))
|
|
|
1390 nil
|
|
|
1391 (url-set-filename urlobj
|
|
|
1392 (url-remove-relative-links
|
|
|
1393 (concat (url-basepath (url-filename defobj))
|
|
|
1394 (url-filename urlobj))))))
|
|
|
1395
|
|
|
1396 (defun url-identity-expander (urlobj defobj)
|
|
|
1397 (url-set-type urlobj (or (url-type urlobj) (url-type defobj))))
|
|
|
1398
|
|
|
1399 (defconst url-unreserved-chars
|
|
|
1400 '(
|
|
|
1401 ?a ?b ?c ?d ?e ?f ?g ?h ?i ?j ?k ?l ?m ?n ?o ?p ?q ?r ?s ?t ?u ?v ?w ?x ?y ?z
|
|
|
1402 ?A ?B ?C ?D ?E ?F ?G ?H ?I ?J ?K ?L ?M ?N ?O ?P ?Q ?R ?S ?T ?U ?V ?W ?X ?Y ?Z
|
|
|
1403 ?0 ?1 ?2 ?3 ?4 ?5 ?6 ?7 ?8 ?9
|
|
|
1404 ?$ ?- ?_ ?. ?! ?~ ?* ?' ?\( ?\) ?,)
|
|
|
1405 "A list of characters that are _NOT_ reserve in the URL spec.
|
|
|
1406 This is taken from draft-fielding-url-syntax-02.txt - check your local
|
|
|
1407 internet drafts directory for a copy.")
|
|
|
1408
|
|
|
1409 (defun url-hexify-string (str)
|
|
|
1410 "Escape characters in a string"
|
|
|
1411 (mapconcat
|
|
|
1412 (function
|
|
|
1413 (lambda (char)
|
|
|
1414 (if (not (memq char url-unreserved-chars))
|
|
|
1415 (if (< char 16)
|
|
|
1416 (upcase (format "%%0%x" char))
|
|
|
1417 (upcase (format "%%%x" char)))
|
|
|
1418 (char-to-string char))))
|
|
|
1419 (mule-decode-string str) ""))
|
|
|
1420
|
|
|
1421 (defun url-make-sequence (start end)
|
|
|
1422 "Make a sequence (list) of numbers from START to END"
|
|
|
1423 (cond
|
|
|
1424 ((= start end) '())
|
|
|
1425 ((> start end) '())
|
|
|
1426 (t
|
|
|
1427 (let ((sqnc '()))
|
|
|
1428 (while (<= start end)
|
|
|
1429 (setq sqnc (cons end sqnc)
|
|
|
1430 end (1- end)))
|
|
|
1431 sqnc))))
|
|
|
1432
|
|
|
1433 (defun url-file-extension (fname &optional x)
|
|
|
1434 "Return the filename extension of FNAME. If optional variable X is t,
|
|
|
1435 then return the basename of the file with the extension stripped off."
|
|
|
1436 (if (and fname (string-match "\\.[^./]+$" fname))
|
|
|
1437 (if x (substring fname 0 (match-beginning 0))
|
|
|
1438 (substring fname (match-beginning 0) nil))
|
|
|
1439 ;;
|
|
|
1440 ;; If fname has no extension, and x then return fname itself instead of
|
|
|
1441 ;; nothing. When caching it allows the correct .hdr file to be produced
|
|
|
1442 ;; for filenames without extension.
|
|
|
1443 ;;
|
|
|
1444 (if x
|
|
|
1445 fname
|
|
|
1446 "")))
|
|
|
1447
|
|
|
1448 (defun url-basepath (file &optional x)
|
|
|
1449 "Return the base pathname of FILE, or the actual filename if X is true"
|
|
|
1450 (cond
|
|
|
1451 ((null file) "")
|
|
|
1452 (x (file-name-nondirectory file))
|
|
|
1453 (t (file-name-directory file))))
|
|
|
1454
|
|
|
1455 (defun url-parse-query-string (query &optional downcase)
|
|
|
1456 (let (retval pairs cur key val)
|
|
|
1457 (setq pairs (split-string query "&"))
|
|
|
1458 (while pairs
|
|
|
1459 (setq cur (car pairs)
|
|
|
1460 pairs (cdr pairs))
|
|
|
1461 (if (not (string-match "=" cur))
|
|
|
1462 nil ; Grace
|
|
|
1463 (setq key (url-unhex-string (substring cur 0 (match-beginning 0)))
|
|
|
1464 val (url-unhex-string (substring cur (match-end 0) nil)))
|
|
|
1465 (if downcase
|
|
|
1466 (setq key (downcase key)))
|
|
|
1467 (setq cur (assoc key retval))
|
|
|
1468 (if cur
|
|
|
1469 (setcdr cur (cons val (cdr cur)))
|
|
|
1470 (setq retval (cons (list key val) retval)))))
|
|
|
1471 retval))
|
|
|
1472
|
|
|
1473 (defun url-unhex (x)
|
|
|
1474 (if (> x ?9)
|
|
|
1475 (if (>= x ?a)
|
|
|
1476 (+ 10 (- x ?a))
|
|
|
1477 (+ 10 (- x ?A)))
|
|
|
1478 (- x ?0)))
|
|
|
1479
|
|
|
1480 (defun url-unhex-string (str &optional allow-newlines)
|
|
|
1481 "Remove %XXX embedded spaces, etc in a url.
|
|
|
1482 If optional second argument ALLOW-NEWLINES is non-nil, then allow the
|
|
|
1483 decoding of carriage returns and line feeds in the string, which is normally
|
|
|
1484 forbidden in URL encoding."
|
|
|
1485 (setq str (or str ""))
|
|
|
1486 (let ((tmp "")
|
|
|
1487 (case-fold-search t))
|
|
|
1488 (while (string-match "%[0-9a-f][0-9a-f]" str)
|
|
|
1489 (let* ((start (match-beginning 0))
|
|
|
1490 (ch1 (url-unhex (elt str (+ start 1))))
|
|
|
1491 (code (+ (* 16 ch1)
|
|
|
1492 (url-unhex (elt str (+ start 2))))))
|
|
|
1493 (setq tmp (concat
|
|
|
1494 tmp (substring str 0 start)
|
|
|
1495 (cond
|
|
|
1496 (allow-newlines
|
|
|
1497 (char-to-string code))
|
|
|
1498 ((or (= code ?\n) (= code ?\r))
|
|
|
1499 " ")
|
|
|
1500 (t (char-to-string code))))
|
|
|
1501 str (substring str (match-end 0)))))
|
|
|
1502 (setq tmp (concat tmp str))
|
|
|
1503 tmp))
|
|
|
1504
|
|
|
1505 (defun url-clean-text ()
|
|
|
1506 "Clean up a buffer, removing any excess garbage from a gateway mechanism,
|
|
|
1507 and decoding any MIME content-transfer-encoding used."
|
|
|
1508 (set-buffer url-working-buffer)
|
|
|
1509 (goto-char (point-min))
|
|
|
1510 (url-replace-regexp "Connection closed by.*" "")
|
|
|
1511 (goto-char (point-min))
|
|
|
1512 (url-replace-regexp "Process WWW.*" ""))
|
|
|
1513
|
|
|
1514 (defun url-remove-compressed-extensions (filename)
|
|
|
1515 (while (assoc (url-file-extension filename) url-uncompressor-alist)
|
|
|
1516 (setq filename (url-file-extension filename t)))
|
|
|
1517 filename)
|
|
|
1518
|
|
|
1519 (defun url-uncompress ()
|
|
|
1520 "Do any necessary uncompression on `url-working-buffer'"
|
|
|
1521 (set-buffer url-working-buffer)
|
|
|
1522 (if (not url-inhibit-uncompression)
|
|
|
1523 (let* ((extn (url-file-extension url-current-file))
|
|
|
1524 (decoder nil)
|
|
|
1525 (code-1 (cdr-safe
|
|
|
1526 (assoc "content-transfer-encoding"
|
|
|
1527 url-current-mime-headers)))
|
|
|
1528 (code-2 (cdr-safe
|
|
|
1529 (assoc "content-encoding" url-current-mime-headers)))
|
|
|
1530 (code-3 (and (not code-1) (not code-2)
|
|
|
1531 (cdr-safe (assoc extn url-uncompressor-alist))))
|
|
|
1532 (done nil)
|
|
|
1533 (default-process-coding-system
|
|
|
1534 (cons mule-no-coding-system mule-no-coding-system)))
|
|
|
1535 (mapcar
|
|
|
1536 (function
|
|
|
1537 (lambda (code)
|
|
|
1538 (setq decoder (and (not (member code done))
|
|
|
1539 (cdr-safe
|
|
|
1540 (assoc code mm-content-transfer-encodings)))
|
|
|
1541 done (cons code done))
|
|
|
1542 (cond
|
|
|
1543 ((null decoder) nil)
|
|
|
1544 ((stringp decoder)
|
|
|
1545 (message "Decoding...")
|
|
|
1546 (call-process-region (point-min) (point-max) decoder t t nil)
|
|
|
1547 (message "Decoding... done."))
|
|
|
1548 ((listp decoder)
|
|
|
1549 (apply 'call-process-region (point-min) (point-max)
|
|
|
1550 (car decoder) t t nil (cdr decoder)))
|
|
|
1551 ((and (symbolp decoder) (fboundp decoder))
|
|
|
1552 (message "Decoding...")
|
|
|
1553 (funcall decoder (point-min) (point-max))
|
|
|
1554 (message "Decoding... done."))
|
|
|
1555 (t
|
|
|
1556 (error "Bad entry for %s in `mm-content-transfer-encodings'"
|
|
|
1557 code)))))
|
|
|
1558 (list code-1 code-2 code-3))))
|
|
|
1559 (set-buffer-modified-p nil))
|
|
|
1560
|
|
|
1561 (defun url-filter (proc string)
|
|
|
1562 (save-excursion
|
|
|
1563 (set-buffer url-working-buffer)
|
|
|
1564 (insert string)
|
|
|
1565 (if (string-match "\nConnection closed by" string)
|
|
|
1566 (progn (set-process-filter proc nil)
|
|
|
1567 (url-sentinel proc string))))
|
|
|
1568 string)
|
|
|
1569
|
|
|
1570 (defun url-default-callback (buf)
|
|
|
1571 (url-download-minor-mode nil)
|
|
|
1572 (cond
|
|
|
1573 ((save-excursion (set-buffer buf)
|
|
|
1574 (and url-current-callback-func
|
|
|
1575 (fboundp url-current-callback-func)))
|
|
|
1576 (save-excursion
|
|
|
1577 (save-window-excursion
|
|
|
1578 (set-buffer buf)
|
|
|
1579 (cond
|
|
|
1580 ((listp url-current-callback-data)
|
|
|
1581 (apply url-current-callback-func
|
|
|
1582 url-current-callback-data))
|
|
|
1583 (url-current-callback-data
|
|
|
1584 (funcall url-current-callback-func
|
|
|
1585 url-current-callback-data))
|
|
|
1586 (t
|
|
|
1587 (funcall url-current-callback-func))))))
|
|
|
1588 ((fboundp 'w3-sentinel)
|
|
|
1589 (set-variable 'w3-working-buffer buf)
|
|
|
1590 (w3-sentinel))
|
|
|
1591 (t
|
|
|
1592 (message "Retrieval for %s complete." buf))))
|
|
|
1593
|
|
|
1594 (defun url-sentinel (proc string)
|
|
|
1595 (let* ((buf (process-buffer proc))
|
|
|
1596 (url-working-buffer (and buf (get-buffer buf)))
|
|
|
1597 status)
|
|
|
1598 (if (not url-working-buffer)
|
|
|
1599 (url-warn 'url (format "Process %s completed with no buffer!" proc))
|
|
|
1600 (save-excursion
|
|
|
1601 (set-buffer url-working-buffer)
|
|
|
1602 (remove-hook 'after-change-functions 'url-after-change-function)
|
|
|
1603 (if url-be-asynchronous
|
|
|
1604 (progn
|
|
|
1605 (widen)
|
|
|
1606 (url-clean-text)
|
|
|
1607 (cond
|
|
|
1608 ((and (null proc) (not url-working-buffer)) nil)
|
|
|
1609 ((url-mime-response-p)
|
|
|
1610 (setq status (url-parse-mime-headers))))
|
|
|
1611 (if (not url-current-mime-type)
|
|
|
1612 (setq url-current-mime-type (mm-extension-to-mime
|
|
|
1613 (url-file-extension
|
|
|
1614 url-current-file)))))))
|
|
|
1615 (if (member status '(401 301 302 303 204))
|
|
|
1616 nil
|
|
|
1617 (funcall url-default-retrieval-proc (buffer-name url-working-buffer))))))
|
|
|
1618
|
|
|
1619 (defun url-remove-relative-links (name)
|
|
|
1620 ;; Strip . and .. from pathnames
|
|
|
1621 (let ((new (if (not (string-match "^/" name))
|
|
|
1622 (concat "/" name)
|
|
|
1623 name)))
|
|
|
1624 (while (string-match "/\\(\\./\\)" new)
|
|
|
1625 (setq new (concat (substring new 0 (match-beginning 1))
|
|
|
1626 (substring new (match-end 1)))))
|
|
|
1627 (while (string-match "/\\([^/]*/\\.\\./\\)" new)
|
|
|
1628 (setq new (concat (substring new 0 (match-beginning 1))
|
|
|
1629 (substring new (match-end 1)))))
|
|
|
1630 (while (string-match "^/\\.\\.\\(/\\)" new)
|
|
|
1631 (setq new (substring new (match-beginning 1) nil)))
|
|
|
1632 new))
|
|
|
1633
|
|
|
1634 (defun url-truncate-url-for-viewing (url &optional width)
|
|
|
1635 "Return a shortened version of URL that is WIDTH characters or less wide.
|
|
|
1636 WIDTH defaults to the current frame width."
|
|
|
1637 (let* ((fr-width (or width (frame-width)))
|
|
|
1638 (str-width (length url))
|
|
|
1639 (tail (file-name-nondirectory url))
|
|
|
1640 (fname nil)
|
|
|
1641 (modified 0)
|
|
|
1642 (urlobj nil))
|
|
|
1643 ;; The first thing that can go are the search strings
|
|
|
1644 (if (and (>= str-width fr-width)
|
|
|
1645 (string-match "?" url))
|
|
|
1646 (setq url (concat (substring url 0 (match-beginning 0)) "?...")
|
|
|
1647 str-width (length url)
|
|
|
1648 tail (file-name-nondirectory url)))
|
|
|
1649 (if (< str-width fr-width)
|
|
|
1650 nil ; Hey, we are done!
|
|
|
1651 (setq urlobj (url-generic-parse-url url)
|
|
|
1652 fname (url-filename urlobj)
|
|
|
1653 fr-width (- fr-width 4))
|
|
|
1654 (while (and (>= str-width fr-width)
|
|
|
1655 (string-match "/" fname))
|
|
|
1656 (setq fname (substring fname (match-end 0) nil)
|
|
|
1657 modified (1+ modified))
|
|
|
1658 (url-set-filename urlobj fname)
|
|
|
1659 (setq url (url-recreate-url urlobj)
|
|
|
1660 str-width (length url)))
|
|
|
1661 (if (> modified 1)
|
|
|
1662 (setq fname (concat "/.../" fname))
|
|
|
1663 (setq fname (concat "/" fname)))
|
|
|
1664 (url-set-filename urlobj fname)
|
|
|
1665 (setq url (url-recreate-url urlobj)))
|
|
|
1666 url))
|
|
|
1667
|
|
|
1668 (defun url-view-url (&optional no-show)
|
|
|
1669 "View the current document's URL. Optional argument NO-SHOW means
|
|
|
1670 just return the URL, don't show it in the minibuffer."
|
|
|
1671 (interactive)
|
|
|
1672 (let ((url ""))
|
|
|
1673 (cond
|
|
|
1674 ((equal url-current-type "gopher")
|
|
|
1675 (setq url (format "%s://%s%s/%s"
|
|
|
1676 url-current-type url-current-server
|
|
|
1677 (if (or (null url-current-port)
|
|
|
1678 (string= "70" url-current-port)) ""
|
|
|
1679 (concat ":" url-current-port))
|
|
|
1680 url-current-file)))
|
|
|
1681 ((equal url-current-type "news")
|
|
|
1682 (setq url (concat "news:"
|
|
|
1683 (if (not (equal url-current-server
|
|
|
1684 url-news-server))
|
|
|
1685 (concat "//" url-current-server
|
|
|
1686 (if (or (null url-current-port)
|
|
|
1687 (string= "119" url-current-port))
|
|
|
1688 ""
|
|
|
1689 (concat ":" url-current-port)) "/"))
|
|
|
1690 url-current-file)))
|
|
|
1691 ((equal url-current-type "about")
|
|
|
1692 (setq url (concat "about:" url-current-file)))
|
|
|
1693 ((member url-current-type '("http" "shttp" "https"))
|
|
|
1694 (setq url (format "%s://%s%s/%s" url-current-type url-current-server
|
|
|
1695 (if (or (null url-current-port)
|
|
|
1696 (string= "80" url-current-port))
|
|
|
1697 ""
|
|
|
1698 (concat ":" url-current-port))
|
|
|
1699 (if (and url-current-file
|
|
|
1700 (= ?/ (string-to-char url-current-file)))
|
|
|
1701 (substring url-current-file 1 nil)
|
|
|
1702 url-current-file))))
|
|
|
1703 ((equal url-current-type "ftp")
|
|
|
1704 (setq url (format "%s://%s%s/%s" url-current-type
|
|
|
1705 (if (and url-current-user
|
|
|
1706 (not (string= "anonymous" url-current-user)))
|
|
|
1707 (concat url-current-user "@") "")
|
|
|
1708 url-current-server
|
|
|
1709 (if (and url-current-file
|
|
|
1710 (= ?/ (string-to-char url-current-file)))
|
|
|
1711 (substring url-current-file 1 nil)
|
|
|
1712 url-current-file))))
|
|
|
1713 ((and (member url-current-type '("file" nil)) url-current-file)
|
|
|
1714 (setq url (format "file:%s" url-current-file)))
|
|
|
1715 ((equal url-current-type "www")
|
|
|
1716 (setq url (format "www:/%s/%s" url-current-server url-current-file)))
|
|
|
1717 (t
|
|
|
1718 (setq url nil)))
|
|
|
1719 (if (not no-show) (message "%s" url) url)))
|
|
|
1720
|
|
|
1721 (defun url-parse-Netscape-history (fname)
|
|
|
1722 ;; Parse a Netscape/X style global history list.
|
|
|
1723 (let (pos ; Position holder
|
|
|
1724 url ; The URL
|
|
|
1725 time) ; Last time accessed
|
|
|
1726 (goto-char (point-min))
|
|
|
1727 (skip-chars-forward "^\n")
|
|
|
1728 (skip-chars-forward "\n \t") ; Skip past the tag line
|
|
|
1729 (setq url-global-history-hash-table (make-hash-table :size 131
|
|
|
1730 :test 'equal))
|
|
|
1731 ;; Here we will go to the end of the line and
|
|
|
1732 ;; skip back over a token, since we might run
|
|
|
1733 ;; into spaces in URLs, depending on how much
|
|
|
1734 ;; smarter netscape is than the old XMosaic :)
|
|
|
1735 (while (not (eobp))
|
|
|
1736 (setq pos (point))
|
|
|
1737 (end-of-line)
|
|
|
1738 (skip-chars-backward "^ \t")
|
|
|
1739 (skip-chars-backward " \t")
|
|
|
1740 (setq url (buffer-substring pos (point))
|
|
|
1741 pos (1+ (point)))
|
|
|
1742 (skip-chars-forward "^\n")
|
|
|
1743 (setq time (buffer-substring pos (point)))
|
|
|
1744 (skip-chars-forward "\n")
|
|
|
1745 (setq url-history-changed-since-last-save t)
|
|
|
1746 (cl-puthash url time url-global-history-hash-table))))
|
|
|
1747
|
|
|
1748 (defun url-parse-Mosaic-history-v1 (fname)
|
|
|
1749 ;; Parse an NCSA Mosaic/X style global history list
|
|
|
1750 (goto-char (point-min))
|
|
|
1751 (skip-chars-forward "^\n")
|
|
|
1752 (skip-chars-forward "\n \t") ; Skip past the tag line
|
|
|
1753 (skip-chars-forward "^\n")
|
|
|
1754 (skip-chars-forward "\n \t") ; Skip past the second tag line
|
|
|
1755 (setq url-global-history-hash-table (make-hash-table :size 131
|
|
|
1756 :test 'equal))
|
|
|
1757 (let (pos ; Temporary position holder
|
|
|
1758 bol ; Beginning-of-line
|
|
|
1759 url ; URL
|
|
|
1760 time ; Time
|
|
|
1761 last-end ; Last ending point
|
|
|
1762 )
|
|
|
1763 (while (not (eobp))
|
|
|
1764 (setq bol (point))
|
|
|
1765 (end-of-line)
|
|
|
1766 (setq pos (point)
|
|
|
1767 last-end (point))
|
|
|
1768 (skip-chars-backward "^ \t" bol) ; Skip over year
|
|
|
1769 (skip-chars-backward " \t" bol)
|
|
|
1770 (skip-chars-backward "^ \t" bol) ; Skip over time
|
|
|
1771 (skip-chars-backward " \t" bol)
|
|
|
1772 (skip-chars-backward "^ \t" bol) ; Skip over day #
|
|
|
1773 (skip-chars-backward " \t" bol)
|
|
|
1774 (skip-chars-backward "^ \t" bol) ; Skip over month
|
|
|
1775 (skip-chars-backward " \t" bol)
|
|
|
1776 (skip-chars-backward "^ \t" bol) ; Skip over day abbrev.
|
|
|
1777 (if (bolp)
|
|
|
1778 nil ; Malformed entry!!! Ack! Bailout!
|
|
|
1779 (setq time (buffer-substring pos (point)))
|
|
|
1780 (skip-chars-backward " \t")
|
|
|
1781 (setq pos (point)))
|
|
|
1782 (beginning-of-line)
|
|
|
1783 (setq url (buffer-substring (point) pos))
|
|
|
1784 (goto-char (min (1+ last-end) (point-max))) ; Goto next line
|
|
|
1785 (if (/= (length url) 0)
|
|
|
1786 (progn
|
|
|
1787 (setq url-history-changed-since-last-save t)
|
|
|
1788 (cl-puthash url time url-global-history-hash-table))))))
|
|
|
1789
|
|
|
1790 (defun url-parse-Mosaic-history-v2 (fname)
|
|
|
1791 ;; Parse an NCSA Mosaic/X style global history list (version 2)
|
|
|
1792 (goto-char (point-min))
|
|
|
1793 (skip-chars-forward "^\n")
|
|
|
1794 (skip-chars-forward "\n \t") ; Skip past the tag line
|
|
|
1795 (skip-chars-forward "^\n")
|
|
|
1796 (skip-chars-forward "\n \t") ; Skip past the second tag line
|
|
|
1797 (setq url-global-history-hash-table (make-hash-table :size 131
|
|
|
1798 :test 'equal))
|
|
|
1799 (let (pos ; Temporary position holder
|
|
|
1800 bol ; Beginning-of-line
|
|
|
1801 url ; URL
|
|
|
1802 time ; Time
|
|
|
1803 last-end ; Last ending point
|
|
|
1804 )
|
|
|
1805 (while (not (eobp))
|
|
|
1806 (setq bol (point))
|
|
|
1807 (end-of-line)
|
|
|
1808 (setq pos (point)
|
|
|
1809 last-end (point))
|
|
|
1810 (skip-chars-backward "^ \t" bol) ; Skip over time
|
|
|
1811 (if (bolp)
|
|
|
1812 nil ; Malformed entry!!! Ack! Bailout!
|
|
|
1813 (setq time (buffer-substring pos (point)))
|
|
|
1814 (skip-chars-backward " \t")
|
|
|
1815 (setq pos (point)))
|
|
|
1816 (beginning-of-line)
|
|
|
1817 (setq url (buffer-substring (point) pos))
|
|
|
1818 (goto-char (min (1+ last-end) (point-max))) ; Goto next line
|
|
|
1819 (if (/= (length url) 0)
|
|
|
1820 (progn
|
|
|
1821 (setq url-history-changed-since-last-save t)
|
|
|
1822 (cl-puthash url time url-global-history-hash-table))))))
|
|
|
1823
|
|
|
1824 (defun url-parse-Emacs-history (&optional fname)
|
|
|
1825 ;; Parse out the Emacs-w3 global history file for completion, etc.
|
|
|
1826 (or fname (setq fname (expand-file-name url-global-history-file)))
|
|
|
1827 (cond
|
|
|
1828 ((not (file-exists-p fname))
|
|
|
1829 (message "%s does not exist." fname))
|
|
|
1830 ((not (file-readable-p fname))
|
|
|
1831 (message "%s is unreadable." fname))
|
|
|
1832 (t
|
|
|
1833 (condition-case ()
|
|
|
1834 (load fname nil t)
|
|
|
1835 (error (message "Could not load %s" fname)))
|
|
|
1836 (if (boundp 'url-global-history-completion-list)
|
|
|
1837 ;; Hey! Automatic conversion of old format!
|
|
|
1838 (progn
|
|
|
1839 (setq url-global-history-hash-table (make-hash-table :size 131
|
|
|
1840 :test 'equal)
|
|
|
1841 url-history-changed-since-last-save t)
|
|
|
1842 (mapcar (function
|
|
|
1843 (lambda (x)
|
|
|
1844 (cl-puthash (car x) (cdr x)
|
|
|
1845 url-global-history-hash-table)))
|
|
|
1846 (symbol-value 'url-global-history-completion-list)))))))
|
|
|
1847
|
|
|
1848 (defun url-parse-global-history (&optional fname)
|
|
|
1849 ;; Parse out the mosaic global history file for completions, etc.
|
|
|
1850 (or fname (setq fname (expand-file-name url-global-history-file)))
|
|
|
1851 (cond
|
|
|
1852 ((not (file-exists-p fname))
|
|
|
1853 (message "%s does not exist." fname))
|
|
|
1854 ((not (file-readable-p fname))
|
|
|
1855 (message "%s is unreadable." fname))
|
|
|
1856 (t
|
|
|
1857 (save-excursion
|
|
|
1858 (set-buffer (get-buffer-create " *url-tmp*"))
|
|
|
1859 (erase-buffer)
|
|
|
1860 (insert-file-contents-literally fname)
|
|
|
1861 (goto-char (point-min))
|
|
|
1862 (cond
|
|
|
1863 ((looking-at "(setq") (url-parse-Emacs-history fname))
|
|
|
1864 ((looking-at "ncsa-mosaic-.*-1$") (url-parse-Mosaic-history-v1 fname))
|
|
|
1865 ((looking-at "ncsa-mosaic-.*-2$") (url-parse-Mosaic-history-v2 fname))
|
|
|
1866 ((or (looking-at "MCOM-") (looking-at "netscape"))
|
|
|
1867 (url-parse-Netscape-history fname))
|
|
|
1868 (t
|
|
|
1869 (url-warn 'url (format "Cannot deduce type of history file: %s"
|
|
|
1870 fname))))))))
|
|
|
1871
|
|
|
1872 (defun url-write-Emacs-history (fname)
|
|
|
1873 ;; Write an Emacs-w3 style global history list into FNAME
|
|
|
1874 (erase-buffer)
|
|
|
1875 (let ((count 0))
|
|
|
1876 (cl-maphash (function
|
|
|
1877 (lambda (key value)
|
|
|
1878 (setq count (1+ count))
|
|
|
1879 (insert "(cl-puthash \"" key "\""
|
|
|
1880 (if (not (stringp value)) " '" "")
|
|
|
1881 (prin1-to-string value)
|
|
|
1882 " url-global-history-hash-table)\n")))
|
|
|
1883 url-global-history-hash-table)
|
|
|
1884 (goto-char (point-min))
|
|
|
1885 (insert (format
|
|
|
1886 "(setq url-global-history-hash-table (make-hash-table :size %d :test 'equal))\n"
|
|
|
1887 (/ count 4)))
|
|
|
1888 (goto-char (point-max))
|
|
|
1889 (insert "\n")
|
|
|
1890 (write-file fname)))
|
|
|
1891
|
|
|
1892 (defun url-write-Netscape-history (fname)
|
|
|
1893 ;; Write a Netscape-style global history list into FNAME
|
|
|
1894 (erase-buffer)
|
|
|
1895 (let ((last-valid-time "785305714")) ; Picked out of thin air,
|
|
|
1896 ; in case first in assoc list
|
|
|
1897 ; doesn't have a valid time
|
|
|
1898 (goto-char (point-min))
|
|
|
1899 (insert "MCOM-Global-history-file-1\n")
|
|
|
1900 (cl-maphash (function
|
|
|
1901 (lambda (url time)
|
|
|
1902 (if (or (not (stringp time)) (string-match " \t" time))
|
|
|
1903 (setq time last-valid-time)
|
|
|
1904 (setq last-valid-time time))
|
|
|
1905 (insert url " " time "\n")))
|
|
|
1906 url-global-history-hash-table)
|
|
|
1907 (write-file fname)))
|
|
|
1908
|
|
|
1909 (defun url-write-Mosaic-history-v1 (fname)
|
|
|
1910 ;; Write a Mosaic/X-style global history list into FNAME
|
|
|
1911 (erase-buffer)
|
|
|
1912 (goto-char (point-min))
|
|
|
1913 (insert "ncsa-mosaic-history-format-1\nGlobal\n")
|
|
|
1914 (cl-maphash (function
|
|
|
1915 (lambda (url time)
|
|
|
1916 (if (listp time)
|
|
|
1917 (setq time (current-time-string time)))
|
|
|
1918 (if (or (not (stringp time))
|
|
|
1919 (not (string-match " " time)))
|
|
|
1920 (setq time (current-time-string)))
|
|
|
1921 (insert url " " time "\n")))
|
|
|
1922 url-global-history-hash-table)
|
|
|
1923 (write-file fname))
|
|
|
1924
|
|
|
1925 (defun url-write-Mosaic-history-v2 (fname)
|
|
|
1926 ;; Write a Mosaic/X-style global history list into FNAME
|
|
|
1927 (let ((last-valid-time "827250806"))
|
|
|
1928 (erase-buffer)
|
|
|
1929 (goto-char (point-min))
|
|
|
1930 (insert "ncsa-mosaic-history-format-2\nGlobal\n")
|
|
|
1931 (cl-maphash (function
|
|
|
1932 (lambda (url time)
|
|
|
1933 (if (listp time)
|
|
|
1934 (setq time last-valid-time)
|
|
|
1935 (setq last-valid-time time))
|
|
|
1936 (if (not (stringp time))
|
|
|
1937 (setq time last-valid-time))
|
|
|
1938 (insert url " " time "\n")))
|
|
|
1939 url-global-history-hash-table)
|
|
|
1940 (write-file fname)))
|
|
|
1941
|
|
|
1942 (defun url-write-global-history (&optional fname)
|
|
|
1943 "Write the global history file into `url-global-history-file'.
|
|
|
1944 The type of data written is determined by what is in the file to begin
|
|
|
1945 with. If the type of storage cannot be determined, then prompt the
|
|
|
1946 user for what type to save as."
|
|
|
1947 (interactive)
|
|
|
1948 (or fname (setq fname (expand-file-name url-global-history-file)))
|
|
|
1949 (cond
|
|
|
1950 ((not url-history-changed-since-last-save) nil)
|
|
|
1951 ((not (file-writable-p fname))
|
|
|
1952 (message "%s is unwritable." fname))
|
|
|
1953 (t
|
|
|
1954 (let ((make-backup-files nil)
|
|
|
1955 (version-control nil)
|
|
|
1956 (require-final-newline t))
|
|
|
1957 (save-excursion
|
|
|
1958 (set-buffer (get-buffer-create " *url-tmp*"))
|
|
|
1959 (erase-buffer)
|
|
|
1960 (condition-case ()
|
|
|
1961 (insert-file-contents-literally fname)
|
|
|
1962 (error nil))
|
|
|
1963 (goto-char (point-min))
|
|
|
1964 (cond
|
|
|
1965 ((looking-at "ncsa-mosaic-.*-1$") (url-write-Mosaic-history-v1 fname))
|
|
|
1966 ((looking-at "ncsa-mosaic-.*-2$") (url-write-Mosaic-history-v2 fname))
|
|
|
1967 ((looking-at "MCOM-") (url-write-Netscape-history fname))
|
|
|
1968 ((looking-at "netscape") (url-write-Netscape-history fname))
|
|
|
1969 ((looking-at "(setq") (url-write-Emacs-history fname))
|
|
|
1970 (t (url-write-Emacs-history fname)))
|
|
|
1971 (kill-buffer (current-buffer))))))
|
|
|
1972 (setq url-history-changed-since-last-save nil))
|
|
|
1973
|
|
|
1974
|
|
|
1975 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
1976 ;;; The main URL fetching interface
|
|
|
1977 ;;; -------------------------------
|
|
|
1978 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
1979
|
|
|
1980 ;;;###autoload
|
|
|
1981 (defun url-popup-info (url)
|
|
|
1982 "Retrieve the HTTP/1.0 headers and display them in a temp buffer."
|
|
|
1983 (let* ((urlobj (url-generic-parse-url url))
|
|
|
1984 (type (url-type urlobj))
|
|
|
1985 data)
|
|
|
1986 (cond
|
|
|
1987 ((string= type "http")
|
|
|
1988 (let ((url-request-method "HEAD")
|
|
|
1989 (url-automatic-caching nil)
|
|
|
1990 (url-inhibit-mime-parsing t)
|
|
|
1991 (url-working-buffer " *popup*"))
|
|
|
1992 (save-excursion
|
|
|
1993 (set-buffer (get-buffer-create url-working-buffer))
|
|
|
1994 (erase-buffer)
|
|
|
1995 (setq url-be-asynchronous nil)
|
|
|
1996 (url-retrieve url)
|
|
|
1997 (subst-char-in-region (point-min) (point-max) ?\r ? )
|
|
|
1998 (buffer-string))))
|
|
|
1999 ((or (string= type "file") (string= type "ftp"))
|
|
|
2000 (setq data (url-file-attributes url))
|
|
|
2001 (set-buffer (get-buffer-create
|
|
|
2002 (url-generate-new-buffer-name "*Header Info*")))
|
|
|
2003 (erase-buffer)
|
|
|
2004 (if data
|
|
|
2005 (concat (if (stringp (nth 0 data))
|
|
|
2006 (concat " Linked to: " (nth 0 data))
|
|
|
2007 (concat " Directory: " (if (nth 0 data) "Yes" "No")))
|
|
|
2008 "\n Links: " (int-to-string (nth 1 data))
|
|
|
2009 "\n File UID: " (int-to-string (nth 2 data))
|
|
|
2010 "\n File GID: " (int-to-string (nth 3 data))
|
|
|
2011 "\n Last Access: " (current-time-string (nth 4 data))
|
|
|
2012 "\nLast Modified: " (current-time-string (nth 5 data))
|
|
|
2013 "\n Last Changed: " (current-time-string (nth 6 data))
|
|
|
2014 "\n Size (bytes): " (int-to-string (nth 7 data))
|
|
|
2015 "\n File Type: " (or (nth 8 data) "text/plain"))
|
|
|
2016 (concat "No info found for " url)))
|
|
|
2017 ((and (string= type "news") (string-match "@" url))
|
|
|
2018 (let ((art (url-filename urlobj)))
|
|
|
2019 (if (not (string= (substring art -1 nil) ">"))
|
|
|
2020 (setq art (concat "<" art ">")))
|
|
|
2021 (url-get-headers-from-article-id art)))
|
|
|
2022 (t (concat "Don't know how to find information on " url)))))
|
|
|
2023
|
|
|
2024 (defun url-decode-text ()
|
|
|
2025 ;; Decode text transmitted by NNTP.
|
|
|
2026 ;; 0. Delete status line.
|
|
|
2027 ;; 1. Delete `^M' at end of line.
|
|
|
2028 ;; 2. Delete `.' at end of buffer (end of text mark).
|
|
|
2029 ;; 3. Delete `.' at beginning of line."
|
|
|
2030 (save-excursion
|
|
|
2031 (set-buffer nntp-server-buffer)
|
|
|
2032 ;; Insert newline at end of buffer.
|
|
|
2033 (goto-char (point-max))
|
|
|
2034 (if (not (bolp))
|
|
|
2035 (insert "\n"))
|
|
|
2036 ;; Delete status line.
|
|
|
2037 (goto-char (point-min))
|
|
|
2038 (delete-region (point) (progn (forward-line 1) (point)))
|
|
|
2039 ;; Delete `^M' at end of line.
|
|
|
2040 ;; (replace-regexp "\r$" "")
|
|
|
2041 (while (not (eobp))
|
|
|
2042 (end-of-line)
|
|
|
2043 (if (= (preceding-char) ?\r)
|
|
|
2044 (delete-char -1))
|
|
|
2045 (forward-line 1)
|
|
|
2046 )
|
|
|
2047 ;; Delete `.' at end of buffer (end of text mark).
|
|
|
2048 (goto-char (point-max))
|
|
|
2049 (forward-line -1) ;(beginning-of-line)
|
|
|
2050 (if (looking-at "^\\.$")
|
|
|
2051 (delete-region (point) (progn (forward-line 1) (point))))
|
|
|
2052 ;; Replace `..' at beginning of line with `.'.
|
|
|
2053 (goto-char (point-min))
|
|
|
2054 ;; (replace-regexp "^\\.\\." ".")
|
|
|
2055 (while (search-forward "\n.." nil t)
|
|
|
2056 (delete-char -1))
|
|
|
2057 ))
|
|
|
2058
|
|
|
2059 (defun url-get-headers-from-article-id (art)
|
|
|
2060 ;; Return the HEAD of ART (a usenet news article)
|
|
|
2061 (cond
|
|
|
2062 ((string-match "flee" nntp-version)
|
|
|
2063 (nntp/command "HEAD" art)
|
|
|
2064 (save-excursion
|
|
|
2065 (set-buffer nntp-server-buffer)
|
|
|
2066 (while (progn (goto-char (point-min))
|
|
|
2067 (not (re-search-forward "^.\r*$" nil t)))
|
|
|
2068 (url-accept-process-output nntp/connection))))
|
|
|
2069 (t
|
|
|
2070 (nntp-send-command "^\\.\r$" "HEAD" art)
|
|
|
2071 (url-decode-text)))
|
|
|
2072 (save-excursion
|
|
|
2073 (set-buffer nntp-server-buffer)
|
|
|
2074 (buffer-string)))
|
|
|
2075
|
|
|
2076 (defvar url-external-retrieval-program "www"
|
|
|
2077 "*Name of the external executable to run to retrieve URLs.")
|
|
|
2078
|
|
|
2079 (defvar url-external-retrieval-args '("-source")
|
|
|
2080 "*A list of arguments to pass to `url-external-retrieval-program' to
|
|
|
2081 retrieve a URL by its HTML source.")
|
|
|
2082
|
|
|
2083 (defun url-retrieve-externally (url &optional no-cache)
|
|
|
2084 (let ((url-working-buffer (if (and url-multiple-p
|
|
|
2085 (string-equal url-working-buffer
|
|
|
2086 url-default-working-buffer))
|
|
|
2087 (url-get-working-buffer-name)
|
|
|
2088 url-working-buffer)))
|
|
|
2089 (if (get-buffer-create url-working-buffer)
|
|
|
2090 (save-excursion
|
|
|
2091 (set-buffer url-working-buffer)
|
|
|
2092 (set-buffer-modified-p nil)
|
|
|
2093 (kill-buffer url-working-buffer)))
|
|
|
2094 (set-buffer (get-buffer-create url-working-buffer))
|
|
|
2095 (let* ((args (append url-external-retrieval-args (list url)))
|
|
|
2096 (urlobj (url-generic-parse-url url))
|
|
|
2097 (type (url-type urlobj)))
|
|
|
2098 (if (or (member type '("www" "about" "mailto" "mailserver"))
|
|
|
2099 (url-file-directly-accessible-p urlobj))
|
|
|
2100 (url-retrieve-internally url)
|
|
|
2101 (url-lazy-message "Retrieving %s..." url)
|
|
|
2102 (apply 'call-process url-external-retrieval-program
|
|
|
2103 nil t nil args)
|
|
|
2104 (url-lazy-message "Retrieving %s... done" url)
|
|
|
2105 (if (and type urlobj)
|
|
|
2106 (setq url-current-server (url-host urlobj)
|
|
|
2107 url-current-type (url-type urlobj)
|
|
|
2108 url-current-port (url-port urlobj)
|
|
|
2109 url-current-file (url-filename urlobj)))
|
|
|
2110 (if (member url-current-file '("/" ""))
|
|
|
2111 (setq url-current-mime-type "text/html"))))))
|
|
|
2112
|
|
|
2113 (defun url-get-normalized-date (&optional specified-time)
|
|
|
2114 ;; Return a 'real' date string that most HTTP servers can understand.
|
|
|
2115 (require 'timezone)
|
|
|
2116 (let* ((raw (if specified-time (current-time-string specified-time)
|
|
|
2117 (current-time-string)))
|
|
|
2118 (gmt (timezone-make-date-arpa-standard raw
|
|
|
2119 (nth 1 (current-time-zone))
|
|
|
2120 "GMT"))
|
|
|
2121 (parsed (timezone-parse-date gmt))
|
|
|
2122 (day (cdr-safe (assoc (substring raw 0 3) weekday-alist)))
|
|
|
2123 (year nil)
|
|
|
2124 (month (car
|
|
|
2125 (rassoc
|
|
|
2126 (string-to-int (aref parsed 1)) monthabbrev-alist)))
|
|
|
2127 )
|
|
|
2128 (setq day (or (car-safe (rassoc day weekday-alist))
|
|
|
2129 (substring raw 0 3))
|
|
|
2130 year (aref parsed 0))
|
|
|
2131 ;; This is needed for plexus servers, or the server will hang trying to
|
|
|
2132 ;; parse the if-modified-since header. Hopefully, I can take this out
|
|
|
2133 ;; soon.
|
|
|
2134 (if (and year (> (length year) 2))
|
|
|
2135 (setq year (substring year -2 nil)))
|
|
|
2136
|
|
|
2137 (concat day ", " (aref parsed 2) "-" month "-" year " "
|
|
|
2138 (aref parsed 3) " " (or (aref parsed 4)
|
|
|
2139 (concat "[" (nth 1 (current-time-zone))
|
|
|
2140 "]")))))
|
|
|
2141
|
|
|
2142 ;;;###autoload
|
|
|
2143 (defun url-cache-expired (url mod)
|
|
|
2144 "Return t iff a cached file has expired."
|
|
|
2145 (if (not (string-match url-nonrelative-link url))
|
|
|
2146 t
|
|
|
2147 (let* ((urlobj (url-generic-parse-url url))
|
|
|
2148 (type (url-type urlobj)))
|
|
|
2149 (cond
|
|
|
2150 (url-standalone-mode
|
|
|
2151 (not (file-exists-p (url-create-cached-filename urlobj))))
|
|
|
2152 ((string= type "http")
|
|
|
2153 (if (not url-standalone-mode) t
|
|
|
2154 (not (file-exists-p (url-create-cached-filename urlobj)))))
|
|
|
2155 ((not (fboundp 'current-time))
|
|
|
2156 t)
|
|
|
2157 ((member type '("file" "ftp"))
|
|
|
2158 (if (or (equal mod '(0 0)) (not mod))
|
|
|
2159 (return t)
|
|
|
2160 (or (> (nth 0 mod) (nth 0 (current-time)))
|
|
|
2161 (> (nth 1 mod) (nth 1 (current-time))))))
|
|
|
2162 (t nil)))))
|
|
|
2163
|
|
|
2164 (defun url-get-working-buffer-name ()
|
|
|
2165 "Get a working buffer name such as ` *URL-<i>*' without a live process and empty"
|
|
|
2166 (let ((num 1)
|
|
|
2167 name buf)
|
|
|
2168 (while (progn (setq name (format " *URL-%d*" num))
|
|
|
2169 (setq buf (get-buffer name))
|
|
|
2170 (and buf (or (get-buffer-process buf)
|
|
|
2171 (save-excursion (set-buffer buf)
|
|
|
2172 (> (point-max) 1)))))
|
|
|
2173 (setq num (1+ num)))
|
|
|
2174 name))
|
|
|
2175
|
|
|
2176 (defun url-default-find-proxy-for-url (urlobj host)
|
|
|
2177 (cond
|
|
|
2178 ((or (and (assoc "no_proxy" url-proxy-services)
|
|
|
2179 (string-match
|
|
|
2180 (cdr
|
|
|
2181 (assoc "no_proxy" url-proxy-services))
|
|
|
2182 host))
|
|
|
2183 (equal "www" (url-type urlobj)))
|
|
|
2184 "DIRECT")
|
|
|
2185 ((cdr (assoc (url-type urlobj) url-proxy-services))
|
|
|
2186 (concat "PROXY " (cdr (assoc (url-type urlobj) url-proxy-services))))
|
|
|
2187 ;;
|
|
|
2188 ;; Should check for socks
|
|
|
2189 ;;
|
|
|
2190 (t
|
|
|
2191 "DIRECT")))
|
|
|
2192
|
|
|
2193 (defvar url-proxy-locator 'url-default-find-proxy-for-url)
|
|
|
2194
|
|
|
2195 (defun url-find-proxy-for-url (url host)
|
|
|
2196 (let ((proxies (split-string (funcall url-proxy-locator url host) " *; *"))
|
|
|
2197 (proxy nil)
|
|
|
2198 (case-fold-search t))
|
|
|
2199 ;; Not sure how I should handle gracefully degrading from one proxy to
|
|
|
2200 ;; another, so for now just deal with the first one
|
|
|
2201 ;; (while proxies
|
|
|
2202 (setq proxy (pop proxies))
|
|
|
2203 (cond
|
|
|
2204 ((string-match "^direct" proxy) nil)
|
|
|
2205 ((string-match "^proxy +" proxy)
|
|
|
2206 (concat "http://" (substring proxy (match-end 0)) "/"))
|
|
|
2207 ((string-match "^socks +" proxy)
|
|
|
2208 (concat "socks://" (substring proxy (match-end 0))))
|
|
|
2209 (t
|
|
|
2210 (url-warn 'url (format "Unknown proxy directive: %s" proxy) 'critical)
|
|
|
2211 nil))))
|
|
|
2212
|
|
|
2213 (defun url-retrieve-internally (url &optional no-cache)
|
|
|
2214 (let ((url-working-buffer (if (and url-multiple-p
|
|
|
2215 (string-equal
|
|
|
2216 (if (bufferp url-working-buffer)
|
|
|
2217 (buffer-name url-working-buffer)
|
|
|
2218 url-working-buffer)
|
|
|
2219 url-default-working-buffer))
|
|
|
2220 (url-get-working-buffer-name)
|
|
|
2221 url-working-buffer)))
|
|
|
2222 (if (get-buffer url-working-buffer)
|
|
|
2223 (save-excursion
|
|
|
2224 (set-buffer url-working-buffer)
|
|
|
2225 (erase-buffer)
|
|
|
2226 (setq url-current-can-be-cached (not no-cache))
|
|
|
2227 (set-buffer-modified-p nil)))
|
|
|
2228 (let* ((urlobj (url-generic-parse-url url))
|
|
|
2229 (type (url-type urlobj))
|
|
|
2230 (url-using-proxy (if (url-host urlobj)
|
|
|
2231 (url-find-proxy-for-url urlobj
|
|
|
2232 (url-host urlobj))
|
|
|
2233 nil))
|
|
|
2234 (handler nil)
|
|
|
2235 (original-url url)
|
|
|
2236 (cached nil)
|
|
|
2237 (tmp url-current-file))
|
|
|
2238 (if url-using-proxy (setq type "proxy"))
|
|
|
2239 (setq cached (url-is-cached url)
|
|
|
2240 cached (and cached (not (url-cache-expired url cached)))
|
|
|
2241 handler (if cached 'url-extract-from-cache
|
|
|
2242 (car-safe
|
|
|
2243 (cdr-safe (assoc (or type "auto")
|
|
|
2244 url-registered-protocols))))
|
|
|
2245 url (if cached (url-create-cached-filename url) url))
|
|
|
2246 (save-excursion
|
|
|
2247 (set-buffer (get-buffer-create url-working-buffer))
|
|
|
2248 (setq url-current-can-be-cached (not no-cache)))
|
|
|
2249 ; (if url-be-asynchronous
|
|
|
2250 ; (url-download-minor-mode t))
|
|
|
2251 (if (and handler (fboundp handler))
|
|
|
2252 (funcall handler url)
|
|
|
2253 (set-buffer (get-buffer-create url-working-buffer))
|
|
|
2254 (setq url-current-file tmp)
|
|
|
2255 (erase-buffer)
|
|
|
2256 (insert "<title> Link Error! </title>\n"
|
|
|
2257 "<h1> An error has occurred... </h1>\n"
|
|
|
2258 (format "The link type `<code>%s</code>'" type)
|
|
|
2259 " is unrecognized or unsupported at this time.<p>\n"
|
|
|
2260 "If you feel this is an error, please "
|
|
|
2261 "<a href=\"mailto://" url-bug-address "\">send me mail.</a>"
|
|
|
2262 "<p><address>William Perry</address><br>"
|
|
|
2263 "<address>" url-bug-address "</address>")
|
|
|
2264 (setq url-current-file "error.html"))
|
|
|
2265 (if (and
|
|
|
2266 (not url-be-asynchronous)
|
|
|
2267 (get-buffer url-working-buffer))
|
|
|
2268 (progn
|
|
|
2269 (set-buffer url-working-buffer)
|
|
|
2270
|
|
|
2271 (url-clean-text)))
|
|
|
2272 (cond
|
|
|
2273 ((equal type "wais") nil)
|
|
|
2274 ((and url-be-asynchronous (not cached) (member type '("http" "proxy")))
|
|
|
2275 nil)
|
|
|
2276 (url-be-asynchronous
|
|
|
2277 (funcall url-default-retrieval-proc (buffer-name)))
|
|
|
2278 ((not (get-buffer url-working-buffer)) nil)
|
|
|
2279 ((and (not url-inhibit-mime-parsing)
|
|
|
2280 (or cached (url-mime-response-p t)))
|
|
|
2281 (or cached (url-parse-mime-headers nil t))))
|
|
|
2282 (if (and (or (not url-be-asynchronous)
|
|
|
2283 (not (equal type "http")))
|
|
|
2284 (not url-current-mime-type))
|
|
|
2285 (if (url-buffer-is-hypertext)
|
|
|
2286 (setq url-current-mime-type "text/html")
|
|
|
2287 (setq url-current-mime-type (mm-extension-to-mime
|
|
|
2288 (url-file-extension
|
|
|
2289 url-current-file)))))
|
|
|
2290 (if (and url-automatic-caching url-current-can-be-cached
|
|
|
2291 (not url-be-asynchronous))
|
|
|
2292 (save-excursion
|
|
|
2293 (url-store-in-cache url-working-buffer)))
|
|
|
2294 (if (not url-global-history-hash-table)
|
|
|
2295 (setq url-global-history-hash-table (make-hash-table :size 131
|
|
|
2296 :test 'equal)))
|
|
|
2297 (if (not (string-match "^about:" original-url))
|
|
|
2298 (progn
|
|
|
2299 (setq url-history-changed-since-last-save t)
|
|
|
2300 (cl-puthash original-url (current-time)
|
|
|
2301 url-global-history-hash-table)))
|
|
|
2302 (cons cached url-working-buffer))))
|
|
|
2303
|
|
|
2304 ;;;###autoload
|
|
|
2305 (defun url-retrieve (url &optional no-cache expected-md5)
|
|
|
2306 "Retrieve a document over the World Wide Web.
|
|
|
2307 The document should be specified by its fully specified
|
|
|
2308 Uniform Resource Locator. No parsing is done, just return the
|
|
|
2309 document as the server sent it. The document is left in the
|
|
|
2310 buffer specified by url-working-buffer. url-working-buffer is killed
|
|
|
2311 immediately before starting the transfer, so that no buffer-local
|
|
|
2312 variables interfere with the retrieval. HTTP/1.0 redirection will
|
|
|
2313 be honored before this function exits."
|
|
|
2314 (url-do-setup)
|
|
|
2315 (if (and (fboundp 'set-text-properties)
|
|
|
2316 (subrp (symbol-function 'set-text-properties)))
|
|
|
2317 (set-text-properties 0 (length url) nil url))
|
|
|
2318 (if (and url (string-match "^url:" url))
|
|
|
2319 (setq url (substring url (match-end 0) nil)))
|
|
|
2320 (let ((status (url-retrieve-internally url no-cache)))
|
|
|
2321 (if (and expected-md5 url-check-md5s)
|
|
|
2322 (let ((cur-md5 (md5 (current-buffer))))
|
|
|
2323 (if (not (string= cur-md5 expected-md5))
|
|
|
2324 (and (not (funcall url-confirmation-func
|
|
|
2325 "MD5s do not match, use anyway? "))
|
|
|
2326 (error "MD5 error.")))))
|
|
|
2327 status))
|
|
|
2328
|
|
|
2329 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
2330 ;;; How to register a protocol
|
|
|
2331 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
2332 (defun url-register-protocol (protocol &optional retrieve expander defport)
|
|
|
2333 "Register a protocol with the URL retrieval package.
|
|
|
2334 PROTOCOL is the type of protocol being registers (http, nntp, etc),
|
|
|
2335 and is the first chunk of the URL. ie: http:// URLs will be
|
|
|
2336 handled by the protocol registered as 'http'. PROTOCOL can
|
|
|
2337 be either a symbol or a string - it is converted to a string,
|
|
|
2338 and lowercased before being registered.
|
|
|
2339 RETRIEVE (optional) is the function to be called with a url as its
|
|
|
2340 only argument. If this argument is omitted, then this looks
|
|
|
2341 for a function called 'url-PROTOCOL'. A warning is shown if
|
|
|
2342 the function is undefined, but the protocol is still
|
|
|
2343 registered.
|
|
|
2344 EXPANDER (optional) is the function to call to expand a relative link
|
|
|
2345 of type PROTOCOL. If omitted, this defaults to
|
|
|
2346 `url-default-expander'
|
|
|
2347
|
|
|
2348 Any proxy information is read in from environment variables at this
|
|
|
2349 time, so this function should only be called after dumping emacs."
|
|
|
2350 (let* ((protocol (cond
|
|
|
2351 ((stringp protocol) (downcase protocol))
|
|
|
2352 ((symbolp protocol) (downcase (symbol-name protocol)))
|
|
|
2353 (t nil)))
|
|
|
2354
|
|
|
2355 (retrieve (or retrieve (intern (concat "url-" protocol))))
|
|
|
2356 (expander (or expander 'url-default-expander))
|
|
|
2357 (cur-protocol (assoc protocol url-registered-protocols))
|
|
|
2358 (urlobj nil)
|
|
|
2359 (cur-proxy (assoc protocol url-proxy-services))
|
|
|
2360 (env-proxy (or (getenv (concat protocol "_proxy"))
|
|
|
2361 (getenv (concat protocol "_PROXY"))
|
|
|
2362 (getenv (upcase (concat protocol "_PROXY"))))))
|
|
|
2363
|
|
|
2364 (if (not protocol)
|
|
|
2365 (error "Invalid data to url-register-protocol."))
|
|
|
2366
|
|
|
2367 (if (not (fboundp retrieve))
|
|
|
2368 (message "Warning: %s registered, but no function found." protocol))
|
|
|
2369
|
|
|
2370 ;; Store the default port, if none previously specified and
|
|
|
2371 ;; defport given
|
|
|
2372 (if (and defport (not (assoc protocol url-default-ports)))
|
|
|
2373 (setq url-default-ports (cons (cons protocol defport)
|
|
|
2374 url-default-ports)))
|
|
|
2375
|
|
|
2376 ;; Store the appropriate information for later
|
|
|
2377 (if cur-protocol
|
|
|
2378 (setcdr cur-protocol (cons retrieve expander))
|
|
|
2379 (setq url-registered-protocols (cons (cons protocol
|
|
|
2380 (cons retrieve expander))
|
|
|
2381 url-registered-protocols)))
|
|
|
2382
|
|
|
2383 ;; Store any proxying information - this will not overwrite an old
|
|
|
2384 ;; entry, so that people can still set this information in their
|
|
|
2385 ;; .emacs file
|
|
|
2386 (cond
|
|
|
2387 (cur-proxy nil) ; Keep their old settings
|
|
|
2388 ((null env-proxy) nil) ; No proxy setup
|
|
|
2389 ;; First check if its something like hostname:port
|
|
|
2390 ((string-match "^\\([^:]+\\):\\([0-9]+\\)$" env-proxy)
|
|
|
2391 (setq urlobj (url-generic-parse-url nil)) ; Get a blank object
|
|
|
2392 (url-set-type urlobj "http")
|
|
|
2393 (url-set-host urlobj (url-match env-proxy 1))
|
|
|
2394 (url-set-port urlobj (url-match env-proxy 2)))
|
|
|
2395 ;; Then check if its a fully specified URL
|
|
|
2396 ((string-match url-nonrelative-link env-proxy)
|
|
|
2397 (setq urlobj (url-generic-parse-url env-proxy))
|
|
|
2398 (url-set-type urlobj "http")
|
|
|
2399 (url-set-target urlobj nil))
|
|
|
2400 ;; Finally, fall back on the assumption that its just a hostname
|
|
|
2401 (t
|
|
|
2402 (setq urlobj (url-generic-parse-url nil)) ; Get a blank object
|
|
|
2403 (url-set-type urlobj "http")
|
|
|
2404 (url-set-host urlobj env-proxy)))
|
|
|
2405
|
|
|
2406 (if (and (not cur-proxy) urlobj)
|
|
|
2407 (progn
|
|
|
2408 (setq url-proxy-services
|
|
|
2409 (cons (cons protocol (concat (url-host urlobj) ":"
|
|
|
2410 (url-port urlobj)))
|
|
|
2411 url-proxy-services))
|
|
|
2412 (message "Using a proxy for %s..." protocol)))))
|
|
|
2413
|
|
|
2414 (provide 'url)
|
