This is the first attempt at authentication inheritence, it still needs

This is the first attempt at authentication inheritence, it still needs

2001-10-19  Alex Graveley  <alex@ximian.com>

	This is the first attempt at authentication inheritence, it
	still needs some work.  Auth headers are always sent no matter
	what, auth realms are not respected, and auth data in the uri is
	ignored unless an existing auth attempt fails.

	* src/libsoup/soup-auth.c (digest_parse_func): Compute a1 hash
	"user:realm:passwd:nonce:cnonce" here, to cut down on per-request
	overhead. Accept a SoupUri from which to get auth info.
	(basic_parse_func): Base64 encode user:passwd here for same
	reason. Accept a SoupUri for getting auth info.
	(compute_response): Get uri path from message instead of SoupAuth.
	(digest_auth_func): Ditto.
	(soup_auth_lookup): Impl. Given a context, lookup the SoupAuth of
	the nearest parent directory.
	(soup_auth_set_context): Impl. Register a SoupAuth to be used for
	requests to the context's path and subdirectories.

	* src/libsoup/soup-auth.h: Move define of SoupAuth here, in
	preparation for making public eventually.

	* src/libsoup/soup-queue.c (soup_encode_http_auth): Use
	soup_auth_lookup ().
	(soup_get_request_header): Don't check the request's uri for auth
	info, as a parent context may have a valid registered SoupAuth.

	* src/libsoup/soup-message.c (authorize_handler): Use
	soup_auth_lookup() to find last (failing) SoupAuth. Use
	soup_auth_set_context() to register the created SoupAuth for this
	context.

	* src/libsoup/soup-message.h: Explicitly define values for soup
	transport-level errorcodes, just because.

	* src/libsoup/soup-context.c (soup_context_unref): When freeing
	the SoupHost parent of this context, free all associated
	SoupAuths.

	* src/libsoup/soup-private.h: Remove auth pointer from context,
	add hashtable of valid auths to SoupAuth.