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b870e584a4
* lisp/url/url-dav.el: Use lexical-binding. (url-dav-process-DAV:prop): Remove unused var `handler-func`. (url-dav-lock-resource): Remove unused var `child-url`. (url-dav-active-locks): Remove unused var `properties`. (url-dav-delete-directory): Remove unused var `props`. (url-dav-file-name-completion): Remove unused var `result`. * lisp/url/url-expand.el (url-expand-file-name): Use \s * lisp/url/url-file.el (url-file): Improve regexp. * lisp/url/url-gw.el: Use lexical-binding. (url-open-stream): Remove unused var `cur-retries`, `retry`, `errobj`. * lisp/url/url-imap.el: Use lexical-binding. (imap-username, imap-password): Declare. * lisp/url/url-mailto.el: Use lexical-binding. (url-mailto): Remove unused var `func`. Use `push`. * lisp/url/url-news.el: Use lexical-binding. (url-news): Remove unused var `article-brackets`. * lisp/url/url-cid.el: * lisp/url/url-cache.el: * lisp/url/url-about.el: * lisp/url/url-tramp.el: * lisp/url/url-proxy.el: * lisp/url/url-privacy.el: * lisp/url/url-nfs.el: * lisp/url/url-ldap.el: * lisp/url/url-misc.el: * lisp/url/url-methods.el: Use lexical-binding.
80 lines
2.5 KiB
EmacsLisp
80 lines
2.5 KiB
EmacsLisp
;;; url-proxy.el --- Proxy server support -*- lexical-binding: t; -*-
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;; Copyright (C) 1999, 2004-2021 Free Software Foundation, Inc.
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;; Keywords: comm, data, processes, hypermedia
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Code:
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(require 'url-parse)
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(defun url-default-find-proxy-for-url (urlobj host)
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(cond
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((or (and (assoc "no_proxy" url-proxy-services)
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(string-match
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(cdr
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(assoc "no_proxy" url-proxy-services))
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host))
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(equal "www" (url-type urlobj)))
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"DIRECT")
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((cdr (assoc (url-type urlobj) url-proxy-services))
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(concat "PROXY " (cdr (assoc (url-type urlobj) url-proxy-services))))
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;;
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;; Should check for socks
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;;
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(t
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"DIRECT")))
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(defvar url-proxy-locator 'url-default-find-proxy-for-url)
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(defun url-find-proxy-for-url (url host)
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(let ((proxies (split-string (funcall url-proxy-locator url host) " *; *"))
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(proxy nil)
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(case-fold-search t))
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;; Not sure how I should handle gracefully degrading from one proxy to
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;; another, so for now just deal with the first one
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;; (while proxies
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(if (listp proxies)
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(setq proxy (car proxies))
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(setq proxy proxies))
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(cond
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((string-match "^direct" proxy) nil)
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((string-match "^proxy +" proxy)
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(concat "http://" (substring proxy (match-end 0)) "/"))
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((string-match "^socks +" proxy)
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(concat "socks://" (substring proxy (match-end 0))))
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(t
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(display-warning 'url (format "Unknown proxy directive: %s" proxy) :error)
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nil))))
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(autoload 'url-http "url-http")
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(defun url-proxy (url callback &optional cbargs)
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;; Retrieve URL from a proxy.
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;; Expects `url-using-proxy' to be bound to the specific proxy to use."
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(setq url-using-proxy (url-generic-parse-url url-using-proxy))
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(cond
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((string= (url-type url-using-proxy) "http")
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(url-http url callback cbargs))
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(t
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(error "Don't know how to use proxy `%s'" url-using-proxy))))
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(provide 'url-proxy)
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;;; url-proxy.el ends here
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