/*
* This is an implementation of OpenID 2.0 RELYING PARTY SUPPORT CURRENTLY B0RKEN AND BEING DEVEL0PZ0RED
+
+
+ OPENID2 BRANCH
+
*
* Copyright (c) 2007-2011 by the citadel.org team
*
curl_easy_setopt(curl, CURLOPT_ENCODING, "");
#endif
curl_easy_setopt(curl, CURLOPT_USERAGENT, CITADEL);
- curl_easy_setopt(curl, CURLOPT_TIMEOUT, 180); /* die after 180 seconds */
+ curl_easy_setopt(curl, CURLOPT_TIMEOUT, 30); /* die after 30 seconds */
if (
(!IsEmptyStr(config.c_ip_addr))
int parse_xrds_document(StrBuf *ReplyBuf) {
struct xrds xrds;
+ syslog(LOG_DEBUG, "\033[32m --- XRDS DOCUMENT --- \n%s\033[0m", ChrPtr(ReplyBuf));
+
memset(&xrds, 0, sizeof (struct xrds));
XML_Parser xp = XML_ParserCreate(NULL);
if (xp) {
/*
- * Callback function for perform_yadis_discovery()
- * We're interested in HTTP headers returned from the server.
+ * Callback function for perform_openid2_discovery()
+ * We're interested in the X-XRDS-Location: header.
*/
size_t yadis_headerfunction(void *ptr, size_t size, size_t nmemb, void *userdata) {
char hdr[1024];
- char *x_xrds_location = (char *) userdata;
+ StrBuf **x_xrds_location = (StrBuf **) userdata;
memcpy(hdr, ptr, (size*nmemb));
hdr[size*nmemb] = 0;
- /* We are looking for a header like this:
- * X-XRDS-Location: https://api.screenname.aol.com/auth/openid/xrds
- */
if (!strncasecmp(hdr, "X-XRDS-Location:", 16)) {
- safestrncpy(x_xrds_location, &hdr[16], 1024);
- striplt(x_xrds_location);
+ *x_xrds_location = NewStrBufPlain(&hdr[16], ((size*nmemb)-16));
+ StrBufTrim(*x_xrds_location);
}
return(size * nmemb);
/* Attempt to perform Yadis discovery as specified in Yadis 1.0 section 6.2.5.
+ *
+ * If Yadis fails, we then attempt HTML discovery using the same document.
+ *
* If successful, returns nonzero and calls parse_xrds_document() to act upon the received data.
- * If Yadis fails, returns 0 and does nothing else.
+ * If fails, returns 0 and does nothing else.
*/
-int perform_yadis_discovery(StrBuf *YadisURL) {
+int perform_openid2_discovery(StrBuf *YadisURL) {
int docbytes = (-1);
StrBuf *ReplyBuf = NULL;
- int r;
+ int return_value = 0;
CURL *curl;
CURLcode result;
char errmsg[1024] = "";
struct curl_slist *my_headers = NULL;
- char x_xrds_location[1024] = "";
+ StrBuf *x_xrds_location = NULL;
if (YadisURL == NULL) return(0);
+ syslog(LOG_DEBUG, "perform_openid2_discovery(%s)", ChrPtr(YadisURL));
if (StrLength(YadisURL) == 0) return(0);
ReplyBuf = NewStrBuf ();
curl_easy_cleanup(curl);
docbytes = StrLength(ReplyBuf);
-
- /* FIXME here we need to handle Yadis 1.0 section 6.2.5.
- *
+ /*
* The response from the server will be one of:
*
* Option 1: An HTML document with a <head> element that includes a <meta> element with http-equiv
* attribute, X-XRDS-Location,
*/
+ /* FIXME handle this somehow */
/*
- * Option 2: HTTP response-headers that include an X-XRDS-Location response-header, together with a
- * document (NOTE: we can probably recurse for this)
- *
- * Option 3:. HTTP response-headers only, which MAY include an X-XRDS-Location response-header,
- * a contenttype response-header specifying MIME media type, application/xrds+xml, or both.
+ * Option 2: HTTP response-headers that include an X-XRDS-Location response-header,
+ * together with a document.
+ * Option 3: HTTP response-headers only, which MAY include an X-XRDS-Location response-header,
+ * a contenttype response-header specifying MIME media type,
+ * application/xrds+xml, or both.
*
- * If the X-XRDS-Location was set, we know about it at this point...
+ * If the X-XRDS-Location header was delivered, we know about it at this point...
*/
- if (!IsEmptyStr(x_xrds_location)) {
- syslog(LOG_DEBUG, "\033[31m FIXME \033[32m %s \033[0m", x_xrds_location);
+ if ( (x_xrds_location)
+ && (strcmp(ChrPtr(x_xrds_location), ChrPtr(YadisURL)))
+ ) {
+ syslog(LOG_DEBUG, "X-XRDS-Location: %s ... recursing!", ChrPtr(x_xrds_location));
+ return_value = perform_openid2_discovery(x_xrds_location);
+ FreeStrBuf(&x_xrds_location);
}
/*
* Option 4: the returned web page may *be* an XRDS document. Try to parse it.
*/
- r = 0;
- if (docbytes >= 0) {
- r = parse_xrds_document(ReplyBuf);
- FreeStrBuf(&ReplyBuf);
+ else if (docbytes >= 0) {
+ return_value = parse_xrds_document(ReplyBuf);
}
- return(r);
+ /*
+ * Option 5: if all else fails, attempt HTML based discovery.
+ */
+ if (return_value == 0) {
+ syslog(LOG_DEBUG, "Attempting HTML discovery");
+ StrBuf *foo = NewStrBuf();
+ extract_link(foo, HKEY("openid2.provider"), ReplyBuf);
+ if (StrLength(foo) > 0) {
+ syslog(LOG_DEBUG, "\033[31mHTML DISCO PROVIDER: %s\033[0m", ChrPtr(foo));
+ }
+ FreeStrBuf(&foo);
+ }
+
+ if (ReplyBuf != NULL) {
+ FreeStrBuf(&ReplyBuf);
+ }
+ return(return_value);
}
* Setup an OpenID authentication
*/
void cmd_oids(char *argbuf) {
+ struct CitContext *CCC = CC; /* CachedCitContext - performance boost */
const char *Pos = NULL;
StrBuf *ArgBuf = NULL;
StrBuf *ReplyBuf = NULL;
StrBuf *trust_root = NULL;
StrBuf *openid_delegate = NULL;
StrBuf *RedirectUrl = NULL;
- struct CitContext *CCC = CC; /* CachedCitContext - performance boost */
ctdl_openid *oiddata;
+ int discovery_succeeded = 0;
Free_ctdl_openid ((ctdl_openid**)&CCC->openid_data);
/********** OpenID 2.0 section 7.3 - Discovery **********/
- /* First we're supposed to attempt XRI based resolution.
+ /* Section 7.3.1 says we have to attempt XRI based discovery.
* No one is using this, no one is asking for it, no one wants it.
* So we're not even going to bother attempting this mode.
*/
- /* Second we attempt Yadis.
- * Google uses this so we'd better do our best to implement it.
+ /* Attempt section 7.3.2 (Yadis discovery) and section 7.3.3 (HTML discovery);
*/
- int yadis_succeeded = perform_yadis_discovery(oiddata->claimed_id);
+ discovery_succeeded = perform_openid2_discovery(oiddata->claimed_id);
+
+
+
+ /************ OPENID 1.1 **********/
- /* Third we attempt HTML-based discovery. Here we go! */
- if ( (yadis_succeeded == 0)
- && (fetch_http(oiddata->claimed_id, &ReplyBuf) > 0)
+ if ( (fetch_http(oiddata->claimed_id, &ReplyBuf) > 0)
&& (StrLength(ReplyBuf) > 0)
) {
openid_delegate = NewStrBuf();
projects / citadel.git / blobdiff