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common: Make proper use of http proxy parameter.

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* common/http.c (is_hostname_port): New.
(send_request): Fix proxy name parsing.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2015-04-21 19:27:22 +02:00
parent a0dead5edc
commit 54e55149f2
No known key found for this signature in database
GPG Key ID: E3FDFF218E45B72B
1 changed files with 48 additions and 3 deletions
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51
common/http.c
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@ -2,7 +2,7 @@
* Copyright (C) 1999, 2001, 2002, 2003, 2004, 2006, 2009, 2010,
* 2011 Free Software Foundation, Inc.
* Copyright (C) 2014 Werner Koch
* Copyright (C) 2015 g10 Code GmbH
* Copyright (C) 2015 g10 Code GmbH
*
* This file is part of GnuPG.
*
@ -1394,6 +1394,33 @@ parse_tuple (char *string)
}
/* Return true if STRING is likely "hostname:port" or only "hostname". */
static int
is_hostname_port (const char *string)
{
int colons = 0;
if (!string || !*string)
return 0;
for (; *string; string++)
{
if (*string == ':')
{
if (colons)
return 0;
if (!string[1])
return 0;
colons++;
}
else if (!colons && strchr (" \t\f\n\v_@[]/", *string))
return 0; /* Invalid characters in hostname. */
else if (colons && !digitp (string))
return 0; /* Not a digit in the port. */
}
return 1;
}
/*
* Send a HTTP request to the server
* Returns 0 if the request was successful
@ -1474,8 +1501,26 @@ send_request (http_t hd, const char *httphost, const char *auth,
if (proxy)
http_proxy = proxy;
err = parse_uri (&uri, http_proxy, 0,
!!(hd->flags & HTTP_FLAG_FORCE_TLS));
err = parse_uri (&uri, http_proxy, 1, 0);
if (gpg_err_code (err) == GPG_ERR_INV_URI
&& is_hostname_port (http_proxy))
{
/* Retry assuming a "hostname:port" string. */
char *tmpname = strconcat ("http://", http_proxy, NULL);
if (tmpname && !parse_uri (&uri, tmpname, 0, 0))
err = 0;
xfree (tmpname);
}
if (err)
;
else if (!strcmp (uri->scheme, "http") || !strcmp (uri->scheme, "socks4"))
;
else if (!strcmp (uri->scheme, "socks5h"))
err = gpg_err_make (default_errsource, GPG_ERR_NOT_IMPLEMENTED);
else
err = gpg_err_make (default_errsource, GPG_ERR_INV_URI);
if (err)
{
log_error ("invalid HTTP proxy (%s): %s\n",