A URI represents a (parsed) URI.
URI supports RFC 3986 (URI Generic Syntax), and can parse any valid URI. However, libsoup only uses "http"
and "https" URIs internally; You can use SOUP_URI_VALID_FOR_HTTP to test if a URI is a valid HTTP
URI.
scheme will always be set in any URI. It is an interned string and is always all lowercase. (If you parse a URI with a
non-lowercase scheme, it will be converted to lowercase.) The macros SOUP_URI_SCHEME_HTTP and SOUP_URI_SCHEME_HTTPS
provide the interned values for "http" and "https" and can be compared against URI scheme values.
user and password are parsed as defined in the older URI specs (ie, separated by a colon; RFC 3986 only talks
about a single "userinfo" field). Note that password is not included in the output of
to_string. libsoup does not normally use these fields; authentication is handled via
Session signals.
host contains the hostname, and port the port specified in the URI. If the URI doesn't contain a hostname,
host will be null, and if it doesn't specify a port, port may be 0. However, for "http" and "https"
URIs, host is guaranteed to be non-%NULL (trying to parse an http URI with no host will return null
), and port will always be non-0 (because libsoup knows the default value to use when it is not specified in the URI).
path is always non-%NULL. For http/https URIs, path will never be an empty string either; if the input URI has
no path, the parsed URI will have a path of "/".
query and fragment are optional for all URI types. decode
may be useful for parsing query.
Note that path, query, and fragment may contain typeof (
unichar2)-encoded characters. URI calls
uri_normalize on them, but not
uri_decode. This is necessary to ensure that to_string will generate a URI that
has exactly the same meaning as the original. (In theory, URI should leave user, password
, and host partially-encoded as well, but this would be more annoying than useful.)
Example: URIs:
public static int main (string[] args) {
Soup.URI uri = new Soup.URI ("http://username:password@localhost:8088/foo/bar.html?foo=f&bar=b#frag");
// Output: ``Fragment: frag``
unowned string fragment = uri.get_fragment ();
print ("Fragment: %s\n", fragment);
// Output: ``Host: localhost``
unowned string host = uri.get_host ();
print ("Host: %s\n", host);
// Output: ``Password: password``
unowned string passwd = uri.get_password ();
print ("Password: %s\n", passwd);
// Output: ``Path: /foo/bar.html``
unowned string path = uri.get_path ();
print ("Path: %s\n", path);
// Output: ``Port: 8088``
uint port = uri.get_port ();
print ("Port: %u\n", port);
// Output: ``Query: foo=f&bar=b``
unowned string query = uri.get_query ();
print ("Query: %s\n", query);
// Output: ``Scheme: http``
unowned string scheme = uri.get_scheme ();
print ("Scheme: %s\n", scheme);
// Output: ``User: username``
unowned string user = uri.get_user ();
print ("User: %s\n", user);
return 0;
}valac --pkg libsoup-2.4 uri.vala