first cut on XRI resolver

 This commit adds openid service resolver that does discovery using XRI (proxy
 only), Yadis protocol and html-based discovery. It uses expat as xml parsing
 engine, which makes it a bit more strict about html it receives, but I think
 failing to discover links in *severely* broken html is better than
 misdetecting links, hidden in comments or such.

 This is highly experimental code and needs more thoughts and testing.

 Thanks everyone pushing me towards this development. Namely Joseph, John,
 Gen.

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

3 files changed, 41 insertions, 1 deletions

diff --git a/test/.gitignore b/test/.gitignore
index 918b3c9..5ce4dc9 100644
--- a/test/.gitignore
+++ b/test/.gitignore
@@ -4 +4,2 @@
 *.o
+/openid_resolve
diff --git a/test/Makefile.am b/test/Makefile.am
index 4b78087..5aa87b3 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -1,2 +1,2 @@
-noinst_PROGRAMS = test
+noinst_PROGRAMS = test openid_resolve
 
@@ -12 +12,4 @@ EXTRA_DIST=$(addsuffix .html,$(addprefix html/, \
 	))
+
+openid_resolve_SOURCES = openid_resolve.cc
+openid_resolve_LDADD = ${top_builddir}/lib/libopkele.la
diff --git a/test/openid_resolve.cc b/test/openid_resolve.cc
new file mode 100644
index 0000000..31c7a6a
--- a/dev/null
+++ b/test/openid_resolve.cc
@@ -0,0 +1,36 @@
+#include <iostream>
+#include <stdexcept>
+#include <iterator>
+#include <algorithm>
+using namespace std;
+#include <opkele/exception.h>
+#include <opkele/openid_service_resolver.h>
+
+int main(int argc,char **argv) {
+    try {
+	if(argc<2)
+	    throw opkele::exception(OPKELE_CP_ "Please, give me something to resolve");
+	opkele::openid_service_resolver_t resolver;
+	for(int a=1;a<argc;++a) {
+	    const opkele::openid_auth_info_t& iai = resolver.resolve(argv[a]);
+	    clog
+		<< "====================" << endl
+		<< "canonical id is " << iai.canonical_id << endl
+		<< endl
+		<< "service priority is " << iai.auth_SEP.priority << endl
+		<< "service types are " ;
+	    copy(
+		    iai.auth_SEP.xrd_Type.begin(), iai.auth_SEP.xrd_Type.end(),
+		    ostream_iterator<string>(clog," ") );
+	    clog << endl
+		<< "service URI is " << iai.auth_SEP.xrd_URI  << endl;
+	    if(!iai.auth_SEP.openid_Delegate.empty())
+		clog << "openid:Delegate is " << iai.auth_SEP.openid_Delegate << endl;
+	    clog << endl;
+	}
+    }catch(exception& e) {
+	cerr << "oops: " << e.what() << endl;
+	_exit(1);
+    }
+    _exit(0);
+}