/*
- * This is an implementation of OpenID 2.0 RELYING PARTY SUPPORT CURRENTLY B0RKEN AND BEING DEVEL0PZ0RED
-
-
- OPENID2 BRANCH -- NEEDS TO BE MERGEZ0RED !!!!!!111
-
+ * This is an implementation of OpenID 2.0 relying party support in stateless mode.
*
* Copyright (c) 2007-2011 by the citadel.org team
*
};
-
void Free_ctdl_openid(ctdl_openid **FreeMe)
{
if (*FreeMe == NULL) {
cprintf("000\n");
}
-
+#if 0
/*
* Attempt to register (populate the vCard) the currently-logged-in user
* using the data from Simple Registration Extension, if present.
}
vcard_free(v);
}
+#endif
/*
void cmd_oidc(char *argbuf) {
ctdl_openid *oiddata = (ctdl_openid *) CC->openid_data;
- if (!oiddata) {
- cprintf("%d You have not verified an OpenID yet.\n", ERROR);
- return;
- }
-
- if (!oiddata->verified) {
+ if ( (!oiddata) || (!oiddata->verified) ) {
cprintf("%d You have not verified an OpenID yet.\n", ERROR);
return;
}
if (CC->logged_in) {
attach_openid(&CC->user, oiddata->claimed_id);
if (oiddata->sreg_keys != NULL) {
- populate_vcard_from_sreg(oiddata->sreg_keys);
+ /* populate_vcard_from_sreg(oiddata->sreg_keys); */
}
}
}
-
/*
* Attempt to auto-create a new Citadel account using the nickname from Simple Registration Extension
*/
snprintf(new_password, sizeof new_password, "%08lx%08lx", random(), random());
CtdlSetPassword(new_password);
attach_openid(&CC->user, claimed_id);
- populate_vcard_from_sreg(sreg_keys);
+ /* populate_vcard_from_sreg(sreg_keys); */
return(0);
}
) {
xrds->current_service_is_oid2auth = 1;
}
+ if ( (xrds->in_xrd)
+ && (!strcasecmp(ChrPtr(xrds->CharData), "http://specs.openid.net/auth/2.0/signon"))
+ ) {
+ xrds->current_service_is_oid2auth = 1;
+ /* FIXME in this case, the Claimed ID should be considered immutable */
+ }
}
else if (!strcasecmp(supplied_el, "uri")) {
struct xrds xrds;
int return_value = 0;
- // syslog(LOG_DEBUG, "\033[32m --- XRDS DOCUMENT --- \n%s\033[0m", ChrPtr(ReplyBuf));
+ /* syslog(LOG_DEBUG, "XRDS document:\n%s\n", ChrPtr(ReplyBuf)); */
memset(&xrds, 0, sizeof (struct xrds));
xrds.selected_service_priority = INT_MAX;
* If successful, returns nonzero and calls parse_xrds_document() to act upon the received data.
* If fails, returns 0 and does nothing else.
*/
-int perform_openid2_discovery(StrBuf *YadisURL) {
+int perform_openid2_discovery(StrBuf *SuppliedURL) {
ctdl_openid *oiddata = (ctdl_openid *) CC->openid_data;
int docbytes = (-1);
StrBuf *ReplyBuf = NULL;
struct curl_slist *my_headers = NULL;
StrBuf *x_xrds_location = NULL;
- if (!YadisURL) return(0);
- syslog(LOG_DEBUG, "perform_openid2_discovery(%s)", ChrPtr(YadisURL));
- if (StrLength(YadisURL) == 0) return(0);
+ if (!SuppliedURL) return(0);
+ syslog(LOG_DEBUG, "perform_openid2_discovery(%s)", ChrPtr(SuppliedURL));
+ if (StrLength(SuppliedURL) == 0) return(0);
ReplyBuf = NewStrBuf();
if (!ReplyBuf) return(0);
curl = ctdl_openid_curl_easy_init(errmsg);
if (!curl) return(0);
- curl_easy_setopt(curl, CURLOPT_URL, ChrPtr(YadisURL));
+ curl_easy_setopt(curl, CURLOPT_URL, ChrPtr(SuppliedURL));
curl_easy_setopt(curl, CURLOPT_WRITEDATA, ReplyBuf);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, CurlFillStrBuf_callback);
*
* Option 1: An HTML document with a <head> element that includes a <meta> element with http-equiv
* attribute, X-XRDS-Location,
+ *
+ * Does any provider actually do this? If so then we will implement it in the future.
*/
- /* FIXME handle this somehow */
/*
* Option 2: HTTP response-headers that include an X-XRDS-Location response-header,
* If the X-XRDS-Location header was delivered, we know about it at this point...
*/
if ( (x_xrds_location)
- && (strcmp(ChrPtr(x_xrds_location), ChrPtr(YadisURL)))
+ && (strcmp(ChrPtr(x_xrds_location), ChrPtr(SuppliedURL)))
) {
syslog(LOG_DEBUG, "X-XRDS-Location: %s ... recursing!", ChrPtr(x_xrds_location));
return_value = perform_openid2_discovery(x_xrds_location);
/*
* Option 4: the returned web page may *be* an XRDS document. Try to parse it.
*/
- else if (docbytes >= 0) {
+ if ( (return_value == 0) && (docbytes >= 0)) {
return_value = parse_xrds_document(ReplyBuf);
}
/*
* Option 5: if all else fails, attempt HTML based discovery.
*/
- if (return_value == 0) {
- syslog(LOG_DEBUG, "Attempting HTML discovery");
+ if ( (return_value == 0) && (docbytes >= 0)) {
if (oiddata->op_url == NULL) {
oiddata->op_url = NewStrBuf();
}
StrBuf *ArgBuf = NULL;
StrBuf *ReplyBuf = NULL;
StrBuf *return_to = NULL;
- StrBuf *trust_root = NULL;
- StrBuf *openid_delegate = NULL;
StrBuf *RedirectUrl = NULL;
ctdl_openid *oiddata;
int discovery_succeeded = 0;
oiddata->verified = 0;
oiddata->claimed_id = NewStrBufPlain(NULL, StrLength(ArgBuf));
- trust_root = NewStrBufPlain(NULL, StrLength(ArgBuf));
return_to = NewStrBufPlain(NULL, StrLength(ArgBuf));
StrBufExtract_NextToken(oiddata->claimed_id, ArgBuf, &Pos, '|');
StrBufExtract_NextToken(return_to, ArgBuf, &Pos, '|');
- StrBufExtract_NextToken(trust_root, ArgBuf, &Pos, '|');
syslog(LOG_DEBUG, "User-Supplied Identifier is: %s", ChrPtr(oiddata->claimed_id));
-
/********** OpenID 2.0 section 7.3 - Discovery **********/
/* Section 7.3.1 says we have to attempt XRI based discovery.
* If we get to this point we are in possession of a valid OpenID Provider URL.
*/
syslog(LOG_DEBUG, "OP URI '%s' discovered using method %d",
- ChrPtr(oiddata->claimed_id),
+ ChrPtr(oiddata->op_url),
discovery_succeeded
);
- /* Empty delegate is legal; we just use the openid_url instead */
- if (StrLength(openid_delegate) == 0) {
- StrBufPlain(openid_delegate, SKEY(oiddata->claimed_id));
+ /* We have to "normalize" our Claimed ID otherwise it will cause some OP's to barf */
+ if (cbmstrcasestr(ChrPtr(oiddata->claimed_id), "://") == NULL) {
+ StrBuf *cid = oiddata->claimed_id;
+ oiddata->claimed_id = NewStrBufPlain(HKEY("http://"));
+ StrBufAppendBuf(oiddata->claimed_id, cid, 0);
+ FreeStrBuf(&cid);
}
- /* Assemble a URL to which the user-agent will be redirected. */
+ /*
+ * OpenID 2.0 section 9: request authentication
+ * Assemble a URL to which the user-agent will be redirected.
+ */
RedirectUrl = NewStrBufDup(oiddata->op_url);
-
- StrBufAppendBufPlain(RedirectUrl, HKEY("?openid.mode=checkid_setup&openid.identity="), 0);
- StrBufUrlescAppend(RedirectUrl, openid_delegate, NULL);
-
+
+ StrBufAppendBufPlain(RedirectUrl, HKEY("?openid.ns="), 0);
+ StrBufUrlescAppend(RedirectUrl, NULL, "http://specs.openid.net/auth/2.0");
+
+ StrBufAppendBufPlain(RedirectUrl, HKEY("&openid.mode=checkid_setup"), 0);
+
+ StrBufAppendBufPlain(RedirectUrl, HKEY("&openid.claimed_id="), 0);
+ StrBufUrlescAppend(RedirectUrl, oiddata->claimed_id, NULL);
+
+ StrBufAppendBufPlain(RedirectUrl, HKEY("&openid.identity="), 0);
+ StrBufUrlescAppend(RedirectUrl, oiddata->claimed_id, NULL);
+
+ /* return_to completes the round trip */
StrBufAppendBufPlain(RedirectUrl, HKEY("&openid.return_to="), 0);
StrBufUrlescAppend(RedirectUrl, return_to, NULL);
-
- StrBufAppendBufPlain(RedirectUrl, HKEY("&openid.trust_root="), 0);
- StrBufUrlescAppend(RedirectUrl, trust_root, NULL);
-
- StrBufAppendBufPlain(RedirectUrl, HKEY("&openid.sreg.optional="), 0);
- StrBufUrlescAppend(RedirectUrl, NULL, "nickname,email,fullname,postcode,country,dob,gender");
-
+
+ /* Attribute Exchange
+ * See:
+ * http://openid.net/specs/openid-attribute-exchange-1_0.html
+ * http://code.google.com/apis/accounts/docs/OpenID.html#endpoint
+ * http://test-id.net/OP/AXFetch.aspx
+ */
+
+ StrBufAppendBufPlain(RedirectUrl, HKEY("&openid.ns.ax="), 0);
+ StrBufUrlescAppend(RedirectUrl, NULL, "http://openid.net/srv/ax/1.0");
+
+ StrBufAppendBufPlain(RedirectUrl, HKEY("&openid.ax.mode=fetch_request"), 0);
+
+ StrBufAppendBufPlain(RedirectUrl, HKEY("&openid.ax.required=firstname,lastname,friendly,nickname"), 0);
+
+ StrBufAppendBufPlain(RedirectUrl, HKEY("&openid.ax.type.firstname="), 0);
+ StrBufUrlescAppend(RedirectUrl, NULL, "http://axschema.org/namePerson/first");
+
+ StrBufAppendBufPlain(RedirectUrl, HKEY("&openid.ax.type.lastname="), 0);
+ StrBufUrlescAppend(RedirectUrl, NULL, "http://axschema.org/namePerson/last");
+
+ StrBufAppendBufPlain(RedirectUrl, HKEY("&openid.ax.type.friendly="), 0);
+ StrBufUrlescAppend(RedirectUrl, NULL, "http://axschema.org/namePerson/friendly");
+
+ StrBufAppendBufPlain(RedirectUrl, HKEY("&openid.ax.type.nickname="), 0);
+ StrBufUrlescAppend(RedirectUrl, NULL, "http://axschema.org/namePerson/nickname");
+
+ syslog(LOG_DEBUG, "OpenID: redirecting client to %s", ChrPtr(RedirectUrl));
cprintf("%d %s\n", CIT_OK, ChrPtr(RedirectUrl));
}
FreeStrBuf(&ArgBuf);
FreeStrBuf(&ReplyBuf);
FreeStrBuf(&return_to);
- FreeStrBuf(&trust_root);
- FreeStrBuf(&openid_delegate);
FreeStrBuf(&RedirectUrl);
}
-
-
-
/*
* Finalize an OpenID authentication
*/
char thiskey[1024];
char thisdata[1024];
HashList *keys = NULL;
+ const char *Key;
+ void *Value;
ctdl_openid *oiddata = (ctdl_openid *) CC->openid_data;
if (oiddata == NULL) {
return;
}
if (StrLength(oiddata->op_url) == 0){
- cprintf("%d need a remote server to authenticate against\n", ERROR + ILLEGAL_VALUE);
+ cprintf("%d No OpenID Endpoint URL has been obtained.\n", ERROR + ILLEGAL_VALUE);
return;
}
keys = NewHash(1, NULL);
while (client_getln(buf, sizeof buf), strcmp(buf, "000")) {
len = extract_token(thiskey, buf, 0, '|', sizeof thiskey);
- if (len < 0)
+ if (len < 0) {
len = sizeof(thiskey) - 1;
+ }
extract_token(thisdata, buf, 1, '|', sizeof thisdata);
- syslog(LOG_DEBUG, "%s: ["SIZE_T_FMT"] %s", thiskey, strlen(thisdata), thisdata);
Put(keys, thiskey, len, strdup(thisdata), NULL);
}
+ /* Check to see if this is a correct response.
+ * Start with verified=1 but then set it to 0 if anything looks wrong.
+ */
+ oiddata->verified = 1;
- /* Now that we have all of the parameters, we have to validate the signature against the server */
- syslog(LOG_DEBUG, "About to validate the signature...");
+ char *openid_ns = NULL;
+ if ( (!GetHash(keys, "ns", 2, (void *) &openid_ns))
+ || (strcasecmp(openid_ns, "http://specs.openid.net/auth/2.0"))
+ ) {
+ syslog(LOG_DEBUG, "This is not an an OpenID assertion");
+ oiddata->verified = 0;
+ }
+
+ char *openid_mode = NULL;
+ if ( (!GetHash(keys, "mode", 4, (void *) &openid_mode))
+ || (strcasecmp(openid_mode, "id_res"))
+ ) {
+ oiddata->verified = 0;
+ }
+
+ char *openid_claimed_id = NULL;
+ if (GetHash(keys, "claimed_id", 10, (void *) &openid_claimed_id)) {
+ FreeStrBuf(&oiddata->claimed_id);
+ oiddata->claimed_id = NewStrBufPlain(openid_claimed_id, -1);
+ syslog(LOG_DEBUG, "Provider is asserting the Claimed ID '%s'", ChrPtr(oiddata->claimed_id));
+ }
+
+ /* Validate the assertion against the server */
+ syslog(LOG_DEBUG, "Validating...");
CURL *curl;
CURLcode res;
struct curl_httppost *formpost = NULL;
struct curl_httppost *lastptr = NULL;
char errmsg[1024] = "";
- char *o_assoc_handle = NULL;
- char *o_sig = NULL;
- char *o_signed = NULL;
- int num_signed_values;
- int i;
- char k_keyname[128];
- char k_o_keyname[128];
- char *k_value = NULL;
- StrBuf *ReplyBuf;
+ StrBuf *ReplyBuf = NewStrBuf();
curl_formadd(&formpost, &lastptr,
CURLFORM_COPYNAME, "openid.mode",
CURLFORM_COPYCONTENTS, "check_authentication",
- CURLFORM_END);
- syslog(LOG_DEBUG, "%25s : %s", "openid.mode", "check_authentication");
-
- if (GetHash(keys, "assoc_handle", 12, (void *) &o_assoc_handle)) {
- curl_formadd(&formpost, &lastptr,
- CURLFORM_COPYNAME, "openid.assoc_handle",
- CURLFORM_COPYCONTENTS, o_assoc_handle,
- CURLFORM_END);
- syslog(LOG_DEBUG, "%25s : %s", "openid.assoc_handle", o_assoc_handle);
- }
-
- if (GetHash(keys, "sig", 3, (void *) &o_sig)) {
- curl_formadd(&formpost, &lastptr,
- CURLFORM_COPYNAME, "openid.sig",
- CURLFORM_COPYCONTENTS, o_sig,
- CURLFORM_END);
- syslog(LOG_DEBUG, "%25s : %s", "openid.sig", o_sig);
- }
-
- if (GetHash(keys, "signed", 6, (void *) &o_signed)) {
- curl_formadd(&formpost, &lastptr,
- CURLFORM_COPYNAME, "openid.signed",
- CURLFORM_COPYCONTENTS, o_signed,
- CURLFORM_END);
- syslog(LOG_DEBUG, "%25s : %s", "openid.signed", o_signed);
-
- num_signed_values = num_tokens(o_signed, ',');
- for (i=0; i<num_signed_values; ++i) {
- extract_token(k_keyname, o_signed, i, ',', sizeof k_keyname);
- if (strcasecmp(k_keyname, "mode")) { // work around phpMyID bug
- if (GetHash(keys, k_keyname, strlen(k_keyname), (void *) &k_value)) {
- snprintf(k_o_keyname, sizeof k_o_keyname, "openid.%s", k_keyname);
- curl_formadd(&formpost, &lastptr,
- CURLFORM_COPYNAME, k_o_keyname,
- CURLFORM_COPYCONTENTS, k_value,
- CURLFORM_END);
- syslog(LOG_DEBUG, "%25s : %s", k_o_keyname, k_value);
- }
- else {
- syslog(LOG_INFO, "OpenID: signed field '%s' is missing",
- k_keyname);
- }
- }
+ CURLFORM_END
+ );
+
+ HashPos *HashPos = GetNewHashPos(keys, 0);
+ while (GetNextHashPos(keys, HashPos, &len, &Key, &Value) != 0) {
+ syslog(LOG_DEBUG, "%s = %s", Key, (char *)Value);
+ if (strcasecmp(Key, "mode")) {
+ char k_o_keyname[1024];
+ snprintf(k_o_keyname, sizeof k_o_keyname, "openid.%s", (const char *)Key);
+ curl_formadd(&formpost, &lastptr,
+ CURLFORM_COPYNAME, k_o_keyname,
+ CURLFORM_COPYCONTENTS, (char *)Value,
+ CURLFORM_END
+ );
}
}
-
- ReplyBuf = NewStrBuf();
curl = ctdl_openid_curl_easy_init(errmsg);
curl_easy_setopt(curl, CURLOPT_URL, ChrPtr(oiddata->op_url));
res = curl_easy_perform(curl);
if (res) {
syslog(LOG_DEBUG, "cmd_oidf() libcurl error %d: %s", res, errmsg);
+ oiddata->verified = 0;
}
curl_easy_cleanup(curl);
curl_formfree(formpost);
- if (cbmstrcasestr(ChrPtr(ReplyBuf), "is_valid:true")) {
- oiddata->verified = 1;
+ /* syslog(LOG_DEBUG, "Validation reply: \n%s", ChrPtr(ReplyBuf)); */
+ if (cbmstrcasestr(ChrPtr(ReplyBuf), "is_valid:true") == NULL) {
+ oiddata->verified = 0;
}
FreeStrBuf(&ReplyBuf);
- syslog(LOG_DEBUG, "Authentication %s.", (oiddata->verified ? "succeeded" : "failed") );
+ syslog(LOG_DEBUG, "OpenID authentication %s", (oiddata->verified ? "succeeded" : "failed") );
/* Respond to the client */
else {
cprintf("\n");
}
- syslog(LOG_DEBUG, "The desired Simple Registration name is already taken.");
+ syslog(LOG_DEBUG, "The desired display name is already taken.");
}
}
}
projects / citadel.git / blobdiff