reworked identity resolution and service discovery

 The discovery, which does both XRDS-based (Yadis, XRI, for XRI, using proxy)
 and HTML-based search, now returns results in opkele:idiscovery_t structure.
 It uses expat-based parser idigger_t, which itself is not exposed via any
 header files, but hidden in lib/discovery.cc, the discovery testing program is
 renamed from openid_resolve to idiscover.

Signed-off-by: Michael Krelin <hacker@klever.net>

1 files changed, 33 insertions, 0 deletions

diff --git a/include/opkele/discovery.h b/include/opkele/discovery.h
new file mode 100644
index 0000000..5d7129b
--- a/dev/null
+++ b/include/opkele/discovery.h
@@ -0,0 +1,33 @@
+#ifndef __OPKELE_DISCOVERY_H
+#define __OPKELE_DISCOVERY_H
+
+#include <string>
+#include <opkele/types.h>
+
+namespace opkele {
+    using std::string;
+
+    struct idiscovery_t;
+
+    void idiscover(idiscovery_t& result,const string& identity);
+
+    struct idiscovery_t {
+	string normalized_id;
+	string canonicalized_id;
+	xrd::XRD_t xrd;
+
+	idiscovery_t(const string& i) {
+	    idiscover(*this,i);
+	}
+	idiscovery_t(const char *i) {
+	    idiscover(*this,i);
+	}
+
+	void clear() {
+	    normalized_id.clear(); canonicalized_id.clear();
+	    xrd.clear();
+	}
+    };
+}
+
+#endif /* __OPKELE_DISCOVERY_H */