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Added method g_network_address_parse_uri()

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This method allow creating a network address from a URI. If no port is
found in the URI, the default_port parameter will be used. Note that new
property scheme is there for future TLS implementation.

Reviewed-by: Dan Winship <danw@gnome.org>
This commit is contained in:
Nicolas Dufresne 2010-08-10 15:23:37 -04:00
parent 466111c960
commit 63105d1074
4 changed files with 304 additions and 0 deletions
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2
docs/reference/gio/gio-sections.txt
View File

@ -1662,7 +1662,9 @@ GNetworkAddress
g_network_address_new
g_network_address_get_hostname
g_network_address_get_port
g_network_address_get_scheme
g_network_address_parse
g_network_address_parse_uri
<SUBSECTION Standard>
GNetworkAddressClass
GNetworkAddressPrivate

2
gio/gio.symbols
View File

@ -1212,8 +1212,10 @@ g_srv_target_list_sort
g_network_address_get_type G_GNUC_CONST
g_network_address_get_hostname
g_network_address_get_port
g_network_address_get_scheme
g_network_address_new
g_network_address_parse
g_network_address_parse_uri
#endif
#endif

296
gio/gnetworkaddress.c
View File

@ -63,12 +63,14 @@ struct _GNetworkAddressPrivate {
gchar *hostname;
guint16 port;
GList *sockaddrs;
gchar *scheme;
};
enum {
PROP_0,
PROP_HOSTNAME,
PROP_PORT,
PROP_SCHEME,
};
static void g_network_address_set_property (GObject *object,
@ -93,6 +95,7 @@ g_network_address_finalize (GObject *object)
GNetworkAddress *addr = G_NETWORK_ADDRESS (object);
g_free (addr->priv->hostname);
g_free (addr->priv->scheme);
if (addr->priv->sockaddrs)
{
@ -133,6 +136,15 @@ g_network_address_class_init (GNetworkAddressClass *klass)
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_SCHEME,
g_param_spec_string ("scheme",
P_("Scheme"),
P_("URI Scheme"),
NULL,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
}
static void
@ -167,6 +179,12 @@ g_network_address_set_property (GObject *object,
addr->priv->port = g_value_get_uint (value);
break;
case PROP_SCHEME:
if (addr->priv->scheme)
g_free (addr->priv->scheme);
addr->priv->scheme = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -192,6 +210,10 @@ g_network_address_get_property (GObject *object,
g_value_set_uint (value, addr->priv->port);
break;
case PROP_SCHEME:
g_value_set_string (value, addr->priv->scheme);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -396,6 +418,262 @@ g_network_address_parse (const gchar *host_and_port,
return connectable;
}
/* Allowed characters outside alphanumeric for unreserved. */
#define G_URI_OTHER_UNRESERVED "-._~"
/* This or something equivalent will eventually go into glib/guri.h */
static gboolean
_g_uri_parse_authority (const char *uri,
char **host,
guint16 *port,
char **userinfo)
{
char *tmp_str;
const char *start, *p;
char c;
g_return_val_if_fail (uri != NULL, FALSE);
if (host)
*host = NULL;
if (port)
*port = 0;
if (userinfo)
*userinfo = NULL;
/* From RFC 3986 Decodes:
* URI = scheme ":" hier-part [ "?" query ] [ "#" fragment ]
* hier-part = "//" authority path-abempty
* path-abempty = *( "/" segment )
* authority = [ userinfo "@" ] host [ ":" port ]
*/
/* Check we have a valid scheme */
tmp_str = g_uri_parse_scheme (uri);
if (tmp_str == NULL)
return FALSE;
g_free (tmp_str);
/* Decode hier-part:
* hier-part = "//" authority path-abempty
*/
p = uri;
start = strstr (p, "//");
if (start == NULL)
return FALSE;
start += 2;
p = strchr (start, '@');
if (p != NULL)
{
/* Decode userinfo:
* userinfo = *( unreserved / pct-encoded / sub-delims / ":" )
* unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
* pct-encoded = "%" HEXDIG HEXDIG
*/
while (1)
{
c = *p++;
if (c == '@')
break;
/* pct-encoded */
if (c == '%')
{
if (!(g_ascii_isxdigit (p[0]) ||
g_ascii_isxdigit (p[1])))
return FALSE;
p++;
continue;
}
/* unreserved / sub-delims / : */
if (!(g_ascii_isalnum(c) ||
strchr (G_URI_OTHER_UNRESERVED, c) ||
strchr (G_URI_RESERVED_CHARS_SUBCOMPONENT_DELIMITERS, c) ||
c == ':'))
return FALSE;
}
if (userinfo)
*userinfo = g_strndup (start, p - start - 1);
start = p;
}
else
{
p = start;
}
/* decode host:
* host = IP-literal / IPv4address / reg-name
* reg-name = *( unreserved / pct-encoded / sub-delims )
*/
/* If IPv6 or IPvFuture */
if (*p == '[')
{
while (1)
{
c = *p++;
if (c == ']')
break;
/* unreserved / sub-delims */
if (!(g_ascii_isalnum(c) ||
strchr (G_URI_OTHER_UNRESERVED, c) ||
strchr (G_URI_RESERVED_CHARS_SUBCOMPONENT_DELIMITERS, c) ||
c == ':' ||
c == '.'))
goto error;
}
}
else
{
while (1)
{
c = *p++;
if (c == ':' ||
c == '/' ||
c == '?' ||
c == '#' ||
c == '\0')
break;
/* pct-encoded */
if (c == '%')
{
if (!(g_ascii_isxdigit (p[0]) ||
g_ascii_isxdigit (p[1])))
goto error;
p++;
continue;
}
/* unreserved / sub-delims */
if (!(g_ascii_isalnum(c) ||
strchr (G_URI_OTHER_UNRESERVED, c) ||
strchr (G_URI_RESERVED_CHARS_SUBCOMPONENT_DELIMITERS, c)))
goto error;
}
}
if (host)
*host = g_uri_unescape_segment (start, p - 1, NULL);
if (c == ':')
{
/* Decode pot:
* port = *DIGIT
*/
guint tmp = 0;
while (1)
{
c = *p++;
if (c == '/' ||
c == '?' ||
c == '#' ||
c == '\0')
break;
if (!g_ascii_isdigit (c))
goto error;
tmp = (tmp * 10) + (c - '0');
if (tmp > 65535)
goto error;
}
if (port)
*port = (guint16) tmp;
}
return TRUE;
error:
if (host && *host)
{
g_free (*host);
*host = NULL;
}
if (userinfo && *userinfo)
{
g_free (*userinfo);
*userinfo = NULL;
}
return FALSE;
}
/**
* g_network_address_parse_uri:
* @uri: the hostname and optionally a port
* @default_port: The default port if none is found in the URI
* @error: a pointer to a #GError, or %NULL
*
* Creates a new #GSocketConnectable for connecting to the given
* @uri. May fail and return %NULL in case parsing @uri fails.
*
* Using this rather than g_network_address_new() or
* g_network_address_parse_host() allows #GSocketClient to determine
* when to use application-specific proxy protocols.
*
* Return value: the new #GNetworkAddress, or %NULL on error
*
* Since: 2.26
*/
GSocketConnectable *
g_network_address_parse_uri (const gchar *uri,
guint16 default_port,
GError **error)
{
GSocketConnectable *conn;
gchar *scheme;
gchar *hostname;
guint16 port;
if (!_g_uri_parse_authority (uri, &hostname, &port, NULL))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
"Invalid URI '%s'",
uri);
return NULL;
}
if (port == 0)
port = default_port;
scheme = g_uri_parse_scheme (uri);
conn = g_object_new (G_TYPE_NETWORK_ADDRESS,
"hostname", hostname,
"port", port,
"scheme", scheme,
NULL);
g_free (scheme);
g_free (hostname);
return conn;
}
/**
* g_network_address_get_hostname:
* @addr: a #GNetworkAddress
@ -433,6 +711,24 @@ g_network_address_get_port (GNetworkAddress *addr)
return addr->priv->port;
}
/**
* g_network_address_get_scheme:
* @addr: a #GNetworkAddress
*
* Gets @addr's scheme
*
* Return value: @addr's scheme (%NULL if not built from URI)
*
* Since: 2.26
*/
const gchar *
g_network_address_get_scheme (GNetworkAddress *addr)
{
g_return_val_if_fail (G_IS_NETWORK_ADDRESS (addr), NULL);
return addr->priv->scheme;
}
#define G_TYPE_NETWORK_ADDRESS_ADDRESS_ENUMERATOR (_g_network_address_address_enumerator_get_type ())
#define G_NETWORK_ADDRESS_ADDRESS_ENUMERATOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), G_TYPE_NETWORK_ADDRESS_ADDRESS_ENUMERATOR, GNetworkAddressAddressEnumerator))

4
gio/gnetworkaddress.h
View File

@ -60,8 +60,12 @@ GSocketConnectable *g_network_address_new (const gchar *hostname,
GSocketConnectable *g_network_address_parse (const gchar *host_and_port,
guint16 default_port,
GError **error);
GSocketConnectable *g_network_address_parse_uri (const gchar *uri,
guint16 default_port,
GError **error);
const gchar *g_network_address_get_hostname (GNetworkAddress *addr);
guint16 g_network_address_get_port (GNetworkAddress *addr);
const gchar *g_network_address_get_scheme (GNetworkAddress *addr);
G_END_DECLS