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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* camel-url.c : utility functions to parse URLs */
/*
* Authors:
* Bertrand Guiheneuf <bertrand@helixcode.com>
* Dan Winship <danw@helixcode.com>
*
* Copyright 1999, 2000 Helix Code, Inc. (http://www.helixcode.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
/* XXX TODO:
* recover the words between #'s or ?'s after the path
* % escapes
*/
#include <config.h>
#include <stdlib.h>
#include <string.h>
#include "camel-url.h"
#include "camel-exception.h"
/**
* camel_url_new: create a CamelURL object from a string
* @url_string: The string containing the URL to scan
*
* This routine takes a string and parses it as a URL of the form:
*
* protocol://user;AUTH=mech:password@host:port/path
*
* The protocol, followed by a ":" is required. If it is followed by
* "//", there must be an "authority" containing at least a host,
* which ends at the end of the string or at the next "/". If there
* is an "@" in the authority, there must be a username before it,
* and the host comes after it. The authmech, password, and port are
* optional, and the punctuation that preceeds them is omitted if
* they are. Everything after the authority (or everything after the
* protocol if there was no authority) is the path. We consider the
* "/" between the authority and the path to be part of the path,
* although this is incorrect according to RFC 1738.
*
* The port, if present, must be numeric.
*
* Return value: a CamelURL structure containing the URL items.
**/
CamelURL *
camel_url_new (const char *url_string, CamelException *ex)
{
CamelURL *url;
char *semi, *colon, *at, *slash;
/* Find protocol: initial substring until ":" */
colon = strchr (url_string, ':');
if (!colon) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_URL_INVALID,
"URL string `%s' contains no protocol",
url_string);
return NULL;
}
url = g_new0 (CamelURL, 1);
url->protocol = g_strndup (url_string, colon - url_string);
if (strncmp (colon, "://", 3) != 0) {
if (*(colon + 1))
url->path = g_strdup (colon + 1);
return url;
}
url_string = colon + 3;
/* If there is an @ sign in the authority, look for user,
* authmech, and password before it.
*/
slash = strchr (url_string, '/');
at = strchr (url_string, '@');
if (at && (!slash || at < slash)) {
colon = strchr (url_string, ':');
if (colon && colon < at)
url->passwd = g_strndup (colon + 1, at - colon - 1);
else {
url->passwd = NULL;
colon = at;
}
semi = strchr(url_string, ';');
if (semi && (semi < colon || (!colon && semi < at)) &&
!strncasecmp (semi, ";auth=", 6)) {
url->authmech = g_strndup (semi + 6,
colon - semi - 6);
} else {
url->authmech = NULL;
semi = colon;
}
url->user = g_strndup (url_string, semi - url_string);
url_string = at + 1;
} else
url->user = url->passwd = url->authmech = NULL;
/* Find host and port. */
slash = strchr (url_string, '/');
colon = strchr (url_string, ':');
if (slash && colon > slash)
colon = NULL;
if (colon) {
url->host = g_strndup (url_string, colon - url_string);
url->port = strtoul (colon + 1, &colon, 10);
if (*colon && colon != slash) {
camel_exception_setv (ex, CAMEL_EXCEPTION_SERVICE_URL_INVALID,
"Port number in URL `%s' is non-"
"numeric", url_string);
camel_url_free (url);
return NULL;
}
} else if (slash) {
url->host = g_strndup (url_string, slash - url_string);
url->port = 0;
} else {
url->host = g_strdup (url_string);
url->port = 0;
}
if (!slash)
slash = "/";
url->path = g_strdup (slash);
return url;
}
char *
camel_url_to_string (CamelURL *url, gboolean show_passwd)
{
char port[20];
if (url->port)
g_snprintf (port, sizeof (port), "%d", url->port);
else
*port = '\0';
return g_strdup_printf ("%s:%s%s%s%s%s%s%s%s%s%s%s",
url->protocol,
url->host ? "//" : "",
url->user ? url->user : "",
url->authmech ? ";auth=" : "",
url->authmech ? url->authmech : "",
url->passwd && show_passwd ? ":" : "",
url->passwd && show_passwd ? url->passwd : "",
url->user ? "@" : "",
url->host ? url->host : "",
url->port ? ":" : "",
port,
url->path ? url->path : "");
}
void
camel_url_free (CamelURL *url)
{
g_assert (url);
g_free (url->protocol);
g_free (url->user);
g_free (url->authmech);
g_free (url->passwd);
g_free (url->host);
g_free (url->path);
g_free (url);
}
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