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/*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License
* at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and
* limitations under the License.
*
* The Original Code is librabbitmq.
*
* The Initial Developer of the Original Code is VMware, Inc.
* Portions created by VMware are Copyright (c) 2007-2011 VMware, Inc.
*
* Portions created by Tony Garnock-Jones are Copyright (c) 2009-2010
* VMware, Inc. and Tony Garnock-Jones.
*
* All rights reserved.
*
* Alternatively, the contents of this file may be used under the terms
* of the GNU General Public License Version 2 or later (the "GPL"), in
* which case the provisions of the GPL are applicable instead of those
* above. If you wish to allow use of your version of this file only
* under the terms of the GPL, and not to allow others to use your
* version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the
* notice and other provisions required by the GPL. If you do not
* delete the provisions above, a recipient may use your version of
* this file under the terms of any one of the MPL or the GPL.
*
* ***** END LICENSE BLOCK *****
*/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include "amqp.h"
#include "amqp_framing.h"
#include "amqp_private.h"
void amqp_default_connection_info(struct amqp_connection_info *ci)
{
/* Apply defaults */
ci->user = "guest";
ci->password = "guest";
ci->host = "localhost";
ci->port = 5672;
ci->vhost = "/";
}
/* Scan for the next delimiter, handling percent-encodings on the way. */
static char find_delim(char **pp, int colon_and_at_sign_are_delims)
{
char *from = *pp;
char *to = from;
for (;;) {
char ch = *from++;
switch (ch) {
case ':':
case '@':
if (!colon_and_at_sign_are_delims) {
*to++ = ch;
break;
}
/* fall through */
case 0:
case '/':
case '?':
case '#':
case '[':
case ']':
*to = 0;
*pp = from;
return ch;
case '%': {
unsigned int val;
int chars;
int res = sscanf(from, "%2x%n", &val, &chars);
if (res == EOF || res < 1 || chars != 2)
/* Return a surprising delimiter to
force an error. */
return '%';
*to++ = val;
from += 2;
break;
}
default:
*to++ = ch;
break;
}
}
}
/* Parse an AMQP URL into its component parts. */
int amqp_parse_url(char *url, struct amqp_connection_info *parsed)
{
int res = -ERROR_BAD_AMQP_URL;
char delim;
char *start;
char *host;
char *port = NULL;
/* check the prefix */
if (strncmp(url, "amqp://", 7))
goto out;
host = start = url += 7;
delim = find_delim(&url, 1);
if (delim == ':') {
/* The colon could be introducing the port or the
password part of the userinfo. We don't know yet,
so stash the preceding component. */
port = start = url;
delim = find_delim(&url, 1);
}
if (delim == '@') {
/* What might have been the host and port were in fact
the username and password */
parsed->user = host;
if (port)
parsed->password = port;
port = NULL;
host = start = url;
delim = find_delim(&url, 1);
}
if (delim == '[') {
/* IPv6 address. The bracket should be the first
character in the host. */
if (host != start || *host != 0)
goto out;
start = url;
delim = find_delim(&url, 0);
if (delim != ']')
goto out;
parsed->host = start;
start = url;
delim = find_delim(&url, 1);
/* Closing bracket should be the last character in the
host. */
if (*start != 0)
goto out;
}
else {
/* If we haven't seen the host yet, this is it. */
if (*host != 0)
parsed->host = host;
}
if (delim == ':') {
port = start = url;
delim = find_delim(&url, 1);
}
if (port) {
char *end;
long portnum = strtol(port, &end, 10);
if (port == end || *end != 0 || portnum < 0 || portnum > 65535)
goto out;
parsed->port = portnum;
}
if (delim == '/') {
start = url;
delim = find_delim(&url, 1);
if (delim != 0)
goto out;
parsed->vhost = start;
res = 0;
}
else if (delim == 0) {
res = 0;
}
/* Any other delimiter is bad, and we will return
ERROR_BAD_AMQP_URL. */
out:
return res;
}
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