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/*
* ***** BEGIN LICENSE BLOCK *****
* Version: MIT
*
* Portions created by VMware are Copyright (c) 2007-2012 VMware, Inc.
* All Rights Reserved.
*
* Portions created by Tony Garnock-Jones are Copyright (c) 2009-2010
* VMware, Inc. and Tony Garnock-Jones. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* ***** 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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