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authorMichael Krelin <hacker@klever.net>2007-12-09 17:22:06 (UTC)
committer Michael Krelin <hacker@klever.net>2007-12-09 22:08:24 (UTC)
commitc34adc6e274c3dbb63af99ca566000e7d218244c (patch) (side-by-side diff)
tree705624c208deb4eaf8d07c119a883e6f4f35236e /lib/util.cc
parent60fdaff7888b455b4d07eadc905cefd20f1ddd3c (diff)
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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>
Diffstat (limited to 'lib/util.cc') (more/less context) (ignore whitespace changes)
-rw-r--r--lib/util.cc22
1 files changed, 12 insertions, 10 deletions
diff --git a/lib/util.cc b/lib/util.cc
index 69d37b5..83f0eef 100644
--- a/lib/util.cc
+++ b/lib/util.cc
@@ -156,79 +156,81 @@ namespace opkele {
long string_to_long(const string& s) {
char *endptr = 0;
long rv = strtol(s.c_str(),&endptr,10);
if((!endptr) || endptr==s.c_str())
throw failed_conversion(OPKELE_CP_ "failed to strtol()");
return rv;
}
/*
* Normalize URL according to the rules, described in rfc 3986, section 6
*
* - uppercase hext triplets (e.g. %ab -> %AB)
* - lowercase scheme and host
* - decode %-encoded characters, specified as unreserved in rfc 3986, section 2.3,
* that is - [:alpha:][:digit:]._~-
* - remove dot segments
* - remove empty and default ports
* - if there's no path component, add '/'
*/
string rfc_3986_normalize_uri(const string& uri) {
static const char *whitespace = " \t\r\n";
string rv;
string::size_type ns = uri.find_first_not_of(whitespace);
if(ns==string::npos)
throw bad_input(OPKELE_CP_ "Can't normalize empty URI");
string::size_type colon = uri.find(':',ns);
if(colon==string::npos)
throw bad_input(OPKELE_CP_ "No scheme specified in URI");
transform(
uri.begin()+ns, uri.begin()+colon+1,
back_inserter(rv), ::tolower );
bool s;
- if(rv=="http:")
- s = false;
- else if(rv=="https:")
- s = true;
-#ifndef NDEBUG
- else if(rv=="file:")
- s = false;
-#endif /* XXX: or try to make tests work some other way */
- else
- throw not_implemented(OPKELE_CP_ "Only http(s) URIs can be normalized here");
string::size_type ul = uri.find_last_not_of(whitespace)+1;
if(ul <= (colon+3))
throw bad_input(OPKELE_CP_ "Unexpected end of URI being normalized encountered");
if(uri[colon+1]!='/' || uri[colon+2]!='/')
throw bad_input(OPKELE_CP_ "Unexpected input in URI being normalized after scheme component");
+ if(rv=="http:")
+ s = false;
+ else if(rv=="https:")
+ s = true;
+ else{
+ /* TODO: support more schemes.
+ * e.g. xri. How do we normalize
+ * xri?
+ */
+ rv.append(uri,colon+1,ul-colon-1);
+ return rv;
+ }
rv += "//";
string::size_type interesting = uri.find_first_of(":/#?",colon+3);
if(interesting==string::npos) {
transform(
uri.begin()+colon+3,uri.begin()+ul,
back_inserter(rv), ::tolower );
rv += '/'; return rv;
}
transform(
uri.begin()+colon+3,uri.begin()+interesting,
back_inserter(rv), ::tolower );
bool qf = false;
char ic = uri[interesting];
if(ic==':') {
string::size_type ni = uri.find_first_of("/#?%",interesting+1);
const char *nptr = uri.data()+interesting+1;
char *eptr = 0;
long port = strtol(nptr,&eptr,10);
if( (port>0) && (port<65535) && port!=(s?443:80) ) {
char tmp[6];
snprintf(tmp,sizeof(tmp),"%ld",port);
rv += ':'; rv += tmp;
}
if(ni==string::npos) {
rv += '/'; return rv;
}
interesting = ni;
}else if(ic!='/') {
rv += '/'; rv += ic;
qf = true;
++interesting;
}