4 * This is an implementation of OpenID 1.1 Relying Party support, in stateless mode.
16 #include <sys/types.h>
18 #if TIME_WITH_SYS_TIME
19 # include <sys/time.h>
23 # include <sys/time.h>
32 #include <curl/curl.h>
33 #include "ctdl_module.h"
35 #include "citserver.h"
39 char claimed_id[1024];
49 /**************************************************************************/
51 /* Functions in this section handle Citadel internal OpenID mapping stuff */
53 /**************************************************************************/
57 * The structure of an openid record *key* is:
59 * |--------------claimed_id-------------|
60 * (actual length of claimed id)
63 * The structure of an openid record *value* is:
65 * |-----user_number----|------------claimed_id---------------|
66 * (sizeof long) (actual length of claimed id)
73 * Attach an OpenID to a Citadel account
75 int attach_openid(struct ctdluser *who, char *claimed_id)
77 struct cdbdata *cdboi;
84 if (!claimed_id) return(1);
85 if (IsEmptyStr(claimed_id)) return(1);
87 /* Check to see if this OpenID is already in the database */
89 cdboi = cdb_fetch(CDB_OPENID, claimed_id, strlen(claimed_id));
91 memcpy(&fetched_usernum, cdboi->ptr, sizeof(long));
94 if (fetched_usernum == who->usernum) {
95 CtdlLogPrintf(CTDL_INFO, "%s already associated; no action is taken\n", claimed_id);
99 CtdlLogPrintf(CTDL_INFO, "%s already belongs to another user\n", claimed_id);
104 /* Not already in the database, so attach it now */
106 data_len = sizeof(long) + strlen(claimed_id) + 1;
107 data = malloc(data_len);
109 memcpy(data, &who->usernum, sizeof(long));
110 memcpy(&data[sizeof(long)], claimed_id, strlen(claimed_id) + 1);
112 cdb_store(CDB_OPENID, claimed_id, strlen(claimed_id), data, data_len);
115 snprintf(buf, sizeof buf, "User <%s> (#%ld) has claimed the OpenID URL %s\n",
116 who->fullname, who->usernum, claimed_id);
117 aide_message(buf, "OpenID claim");
118 CtdlLogPrintf(CTDL_INFO, "%s", buf);
125 * When a user is being deleted, we have to delete any OpenID associations
127 void openid_purge(struct ctdluser *usbuf) {
128 struct cdbdata *cdboi;
129 HashList *keys = NULL;
131 char *deleteme = NULL;
136 keys = NewHash(1, NULL);
140 cdb_rewind(CDB_OPENID);
141 while (cdboi = cdb_next_item(CDB_OPENID), cdboi != NULL) {
142 if (cdboi->len > sizeof(long)) {
143 if (((long)*(cdboi->ptr)) == usbuf->usernum) {
144 deleteme = strdup(cdboi->ptr + sizeof(long)),
145 Put(keys, deleteme, strlen(deleteme), deleteme, generic_free_handler);
151 /* Go through the hash list, deleting keys we stored in it */
153 HashPos = GetNewHashPos();
154 while (GetNextHashPos(keys, HashPos, &len, &Key, &Value)!=0)
156 CtdlLogPrintf(CTDL_DEBUG, "Deleting associated OpenID <%s>\n", Value);
157 cdb_delete(CDB_OPENID, Value, strlen(Value));
158 /* note: don't free(Value) -- deleting the hash list will handle this for us */
160 DeleteHashPos(&HashPos);
167 * List the OpenIDs associated with the currently logged in account
169 void cmd_oidl(char *argbuf) {
170 struct cdbdata *cdboi;
172 if (CtdlAccessCheck(ac_logged_in)) return;
173 cdb_rewind(CDB_OPENID);
174 cprintf("%d Associated OpenIDs:\n", LISTING_FOLLOWS);
176 while (cdboi = cdb_next_item(CDB_OPENID), cdboi != NULL) {
177 if (cdboi->len > sizeof(long)) {
178 if (((long)*(cdboi->ptr)) == CC->user.usernum) {
179 cprintf("%s\n", cdboi->ptr + sizeof(long));
189 * Attempt to register (populate the vCard) the currently-logged-in user
190 * using the data from Simple Registration Extension, if present.
192 void populate_vcard_from_sreg(HashList *sreg_keys) {
195 int pop = 0; /* number of fields populated */
197 char *postcode = NULL;
198 char *country = NULL;
200 if (!sreg_keys) return;
204 if (GetHash(sreg_keys, "identity", 8, (void *) &data)) {
205 vcard_add_prop(v, "url;type=openid", data);
209 if (GetHash(sreg_keys, "sreg.email", 10, (void *) &data)) {
210 vcard_add_prop(v, "email;internet", data);
214 if (GetHash(sreg_keys, "sreg.nickname", 13, (void *) &data)) {
215 vcard_add_prop(v, "nickname", data);
219 if (GetHash(sreg_keys, "sreg.fullname", 13, (void *) &data)) {
221 vcard_add_prop(v, "fn", data);
222 vcard_fn_to_n(n, data, sizeof n);
223 vcard_add_prop(v, "n", n);
227 if (!GetHash(sreg_keys, "sreg.postcode", 13, (void *) &postcode)) {
231 if (!GetHash(sreg_keys, "sreg.country", 12, (void *) &country)) {
235 if (postcode || country) {
237 snprintf(adr, sizeof adr, ";;;;;%s;%s",
238 (postcode ? postcode : ""),
239 (country ? country : "")
241 vcard_add_prop(v, "adr", adr);
245 if (GetHash(sreg_keys, "sreg.dob", 8, (void *) &data)) {
246 vcard_add_prop(v, "bday", data);
250 if (GetHash(sreg_keys, "sreg.gender", 11, (void *) &data)) {
251 vcard_add_prop(v, "x-funambol-gender", data);
255 /* Only save the vCard if there is some useful data in it */
258 ser = vcard_serialize(v);
260 CtdlWriteObject(USERCONFIGROOM, "text/x-vcard",
261 ser, strlen(ser)+1, &CC->user, 0, 0, 0
271 * Create a new user account, manually specifying the name, after successfully
272 * verifying an OpenID (which will of course be attached to the account)
274 void cmd_oidc(char *argbuf) {
275 struct ctdl_openid *oiddata = (struct ctdl_openid *) CC->openid_data;
277 if (!oiddata->verified) {
278 cprintf("%d You have not verified an OpenID yet.\n", ERROR);
282 /* We can make the semantics of OIDC exactly the same as NEWU, simply
283 * by _calling_ cmd_newu() and letting it run. Very clever!
287 /* Now, if this logged us in, we have to attach the OpenID */
289 attach_openid(&CC->user, oiddata->claimed_id);
290 if (oiddata->sreg_keys != NULL) {
291 populate_vcard_from_sreg(oiddata->sreg_keys);
301 * Detach an OpenID from the currently logged in account
303 void cmd_oidd(char *argbuf) {
304 struct cdbdata *cdboi;
305 char id_to_detach[1024];
306 int this_is_mine = 0;
308 if (CtdlAccessCheck(ac_logged_in)) return;
309 extract_token(id_to_detach, argbuf, 0, '|', sizeof id_to_detach);
310 if (IsEmptyStr(id_to_detach)) {
311 cprintf("%d An empty OpenID URL is not allowed.\n", ERROR + ILLEGAL_VALUE);
314 cdb_rewind(CDB_OPENID);
315 while (cdboi = cdb_next_item(CDB_OPENID), cdboi != NULL) {
316 if (cdboi->len > sizeof(long)) {
317 if (((long)*(cdboi->ptr)) == CC->user.usernum) {
325 cprintf("%d That OpenID was not found or not associated with your account.\n",
326 ERROR + ILLEGAL_VALUE);
330 cdb_delete(CDB_OPENID, id_to_detach, strlen(id_to_detach));
331 cprintf("%d %s detached from your account.\n", CIT_OK, id_to_detach);
337 * Attempt to auto-create a new Citadel account using the nickname from Simple Registration Extension
339 int openid_create_user_via_sreg(char *claimed_id, HashList *sreg_keys)
341 char *desired_name = NULL;
342 char new_password[32];
344 if (config.c_auth_mode != AUTHMODE_NATIVE) return(1);
345 if (config.c_disable_newu) return(2);
346 if (CC->logged_in) return(3);
347 if (!GetHash(sreg_keys, "sreg.nickname", 13, (void *) &desired_name)) return(4);
349 CtdlLogPrintf(CTDL_DEBUG, "The desired account name is <%s>\n", desired_name);
351 if (!getuser(&CC->user, desired_name)) {
352 CtdlLogPrintf(CTDL_DEBUG, "<%s> is already taken by another user.\n", desired_name);
353 memset(&CC->user, 0, sizeof(struct ctdluser));
357 /* The desired account name is available. Create the account and log it in! */
358 if (create_user(desired_name, 1)) return(6);
360 snprintf(new_password, sizeof new_password, "%08lx%08lx", random(), random());
361 CtdlSetPassword(new_password);
362 attach_openid(&CC->user, claimed_id);
363 populate_vcard_from_sreg(sreg_keys);
369 * If a user account exists which is associated with the Claimed ID, log it in and return zero.
370 * Otherwise it returns nonzero.
372 int login_via_openid(char *claimed_id)
374 struct cdbdata *cdboi;
377 cdboi = cdb_fetch(CDB_OPENID, claimed_id, strlen(claimed_id));
382 memcpy(&usernum, cdboi->ptr, sizeof(long));
385 if (!getuserbynumber(&CC->user, usernum)) {
386 /* Now become the user we just created */
387 safestrncpy(CC->curr_user, CC->user.fullname, sizeof CC->curr_user);
392 memset(&CC->user, 0, sizeof(struct ctdluser));
400 /**************************************************************************/
402 /* Functions in this section handle OpenID protocol */
404 /**************************************************************************/
408 * Locate a <link> tag and, given its 'rel=' parameter, return its 'href' parameter
410 void extract_link(char *target_buf, int target_size, char *rel, char *source_buf)
412 char *ptr = source_buf;
414 if (!target_buf) return;
416 if (!source_buf) return;
420 while (ptr = bmstrcasestr(ptr, "<link"), ptr != NULL) {
422 char work_buffer[2048];
423 char *link_tag_start = NULL;
424 char *link_tag_end = NULL;
429 link_tag_start = ptr;
430 link_tag_end = strchr(ptr, '>');
434 if ((link_tag_end) && (link_tag_end > link_tag_start)) {
436 len = link_tag_end - link_tag_start;
437 if (len > sizeof work_buffer) len = sizeof work_buffer;
438 memcpy(work_buffer, link_tag_start, len);
440 char *rel_start = NULL;
441 char *rel_end = NULL;
442 rel_start = bmstrcasestr(work_buffer, "rel=");
444 rel_start = strchr(rel_start, '\"');
447 rel_end = strchr(rel_start, '\"');
448 if ((rel_end) && (rel_end > rel_start)) {
449 safestrncpy(rel_tag, rel_start, rel_end - rel_start + 1);
454 char *href_start = NULL;
455 char *href_end = NULL;
456 href_start = bmstrcasestr(work_buffer, "href=");
458 href_start = strchr(href_start, '\"');
461 href_end = strchr(href_start, '\"');
462 if ((href_end) && (href_end > href_start)) {
463 safestrncpy(href_tag, href_start, href_end - href_start + 1);
468 if (!strcasecmp(rel, rel_tag)) {
469 safestrncpy(target_buf, href_tag, target_size);
485 int total_bytes_received;
490 size_t fh_callback(void *ptr, size_t size, size_t nmemb, void *stream)
492 struct fh_data *fh = (struct fh_data *) stream;
493 int got_bytes = (size * nmemb);
495 if (fh->total_bytes_received + got_bytes > fh->maxbytes) {
496 got_bytes = fh->maxbytes - fh->total_bytes_received;
499 memcpy(&fh->buf[fh->total_bytes_received], ptr, got_bytes);
500 fh->total_bytes_received += got_bytes;
503 return (size * nmemb); /* always succeed; libcurl doesn't need to know if we truncated it */
509 * Begin an HTTP fetch (returns number of bytes actually fetched, or -1 for error) using libcurl.
511 * If 'normalize_len' is nonzero, the caller is specifying the buffer size of 'url', and is
512 * requesting that the effective (normalized) URL be copied back to it.
514 int fetch_http(char *url, char *target_buf, int maxbytes, int normalize_len)
518 char errmsg[1024] = "";
519 struct fh_data fh = {
524 char *effective_url = NULL;
526 if (!url) return(-1);
527 if (!target_buf) return(-1);
528 memset(target_buf, 0, maxbytes);
530 curl = curl_easy_init();
532 CtdlLogPrintf(CTDL_ALERT, "Unable to initialize libcurl.\n");
536 curl_easy_setopt(curl, CURLOPT_URL, url);
537 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
538 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0);
539 curl_easy_setopt(curl, CURLOPT_WRITEDATA, &fh);
540 curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fh_callback);
541 curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errmsg);
542 curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
543 curl_easy_setopt(curl, CURLOPT_USERAGENT, CITADEL);
544 if (!IsEmptyStr(config.c_ip_addr)) {
545 curl_easy_setopt(curl, CURLOPT_INTERFACE, config.c_ip_addr);
547 res = curl_easy_perform(curl);
549 CtdlLogPrintf(CTDL_DEBUG, "fetch_http() libcurl error %d: %s\n", res, errmsg);
551 if (normalize_len > 0) {
552 curl_easy_getinfo(curl, CURLINFO_EFFECTIVE_URL, &effective_url);
553 safestrncpy(url, effective_url, normalize_len);
555 curl_easy_cleanup(curl);
556 return fh.total_bytes_received;
561 * Setup an OpenID authentication
563 void cmd_oids(char *argbuf) {
564 char return_to[1024];
565 char trust_root[1024];
568 struct CitContext *CCC = CC; /* CachedCitContext - performance boost */
569 struct ctdl_openid *oiddata;
571 oiddata = (struct ctdl_openid *) CCC->openid_data;
573 if (oiddata != NULL) {
574 if (oiddata->sreg_keys != NULL) {
575 DeleteHash(&oiddata->sreg_keys);
576 oiddata->sreg_keys = NULL;
578 free(CCC->openid_data);
580 oiddata = malloc(sizeof(struct ctdl_openid));
581 if (oiddata == NULL) {
582 cprintf("%d malloc failed\n", ERROR + INTERNAL_ERROR);
585 memset(oiddata, 0, sizeof(struct ctdl_openid));
586 CCC->openid_data = (void *) oiddata;
588 extract_token(oiddata->claimed_id, argbuf, 0, '|', sizeof oiddata->claimed_id);
589 extract_token(return_to, argbuf, 1, '|', sizeof return_to);
590 extract_token(trust_root, argbuf, 2, '|', sizeof trust_root);
591 oiddata->verified = 0;
593 i = fetch_http(oiddata->claimed_id, buf, sizeof buf - 1, sizeof oiddata->claimed_id);
594 CtdlLogPrintf(CTDL_DEBUG, "Normalized URL and Claimed ID is: %s\n", oiddata->claimed_id);
595 buf[sizeof buf - 1] = 0;
597 char openid_delegate[1024];
599 extract_link(oiddata->server, sizeof oiddata->server, "openid.server", buf);
600 extract_link(openid_delegate, sizeof openid_delegate, "openid.delegate", buf);
602 if (IsEmptyStr(oiddata->server)) {
603 cprintf("%d There is no OpenID identity provider at this URL.\n", ERROR);
607 /* Empty delegate is legal; we just use the openid_url instead */
608 if (IsEmptyStr(openid_delegate)) {
609 safestrncpy(openid_delegate, oiddata->claimed_id, sizeof openid_delegate);
612 /* Assemble a URL to which the user-agent will be redirected. */
613 char redirect_string[4096];
614 char escaped_identity[512];
615 char escaped_return_to[2048];
616 char escaped_trust_root[1024];
617 char escaped_sreg_optional[256];
619 urlesc(escaped_identity, sizeof escaped_identity, openid_delegate);
620 urlesc(escaped_return_to, sizeof escaped_return_to, return_to);
621 urlesc(escaped_trust_root, sizeof escaped_trust_root, trust_root);
622 urlesc(escaped_sreg_optional, sizeof escaped_sreg_optional,
623 "nickname,email,fullname,postcode,country,dob,gender");
625 snprintf(redirect_string, sizeof redirect_string,
627 "?openid.mode=checkid_setup"
628 "&openid.identity=%s"
629 "&openid.return_to=%s"
630 "&openid.trust_root=%s"
631 "&openid.sreg.optional=%s"
637 escaped_sreg_optional
639 cprintf("%d %s\n", CIT_OK, redirect_string);
643 cprintf("%d Unable to fetch OpenID URL\n", ERROR);
651 * Finalize an OpenID authentication
653 void cmd_oidf(char *argbuf) {
657 HashList *keys = NULL;
658 struct ctdl_openid *oiddata = (struct ctdl_openid *) CC->openid_data;
660 keys = NewHash(1, NULL);
662 cprintf("%d NewHash() failed\n", ERROR + INTERNAL_ERROR);
666 cprintf("%d Transmit OpenID data now\n", START_CHAT_MODE);
668 while (client_getln(buf, sizeof buf), strcmp(buf, "000")) {
669 extract_token(thiskey, buf, 0, '|', sizeof thiskey);
670 extract_token(thisdata, buf, 1, '|', sizeof thisdata);
671 CtdlLogPrintf(CTDL_DEBUG, "%s: [%d] %s\n", thiskey, strlen(thisdata), thisdata);
672 Put(keys, thiskey, strlen(thiskey), strdup(thisdata), generic_free_handler);
676 /* Now that we have all of the parameters, we have to validate the signature against the server */
677 CtdlLogPrintf(CTDL_DEBUG, "About to validate the signature...\n");
681 struct curl_httppost *formpost = NULL;
682 struct curl_httppost *lastptr = NULL;
683 char errmsg[1024] = "";
684 char *o_assoc_handle = NULL;
686 char *o_signed = NULL;
687 int num_signed_values;
690 char k_o_keyname[128];
691 char *k_value = NULL;
694 struct fh_data fh = {
700 curl_formadd(&formpost, &lastptr,
701 CURLFORM_COPYNAME, "openid.mode",
702 CURLFORM_COPYCONTENTS, "check_authentication",
704 CtdlLogPrintf(CTDL_DEBUG, "%25s : %s\n", "openid.mode", "check_authentication");
706 if (GetHash(keys, "assoc_handle", 12, (void *) &o_assoc_handle)) {
707 curl_formadd(&formpost, &lastptr,
708 CURLFORM_COPYNAME, "openid.assoc_handle",
709 CURLFORM_COPYCONTENTS, o_assoc_handle,
711 CtdlLogPrintf(CTDL_DEBUG, "%25s : %s\n", "openid.assoc_handle", o_assoc_handle);
714 if (GetHash(keys, "sig", 3, (void *) &o_sig)) {
715 curl_formadd(&formpost, &lastptr,
716 CURLFORM_COPYNAME, "openid.sig",
717 CURLFORM_COPYCONTENTS, o_sig,
719 CtdlLogPrintf(CTDL_DEBUG, "%25s : %s\n", "openid.sig", o_sig);
722 if (GetHash(keys, "signed", 6, (void *) &o_signed)) {
723 curl_formadd(&formpost, &lastptr,
724 CURLFORM_COPYNAME, "openid.signed",
725 CURLFORM_COPYCONTENTS, o_signed,
727 CtdlLogPrintf(CTDL_DEBUG, "%25s : %s\n", "openid.signed", o_signed);
729 num_signed_values = num_tokens(o_signed, ',');
730 for (i=0; i<num_signed_values; ++i) {
731 extract_token(k_keyname, o_signed, i, ',', sizeof k_keyname);
732 if (strcasecmp(k_keyname, "mode")) { // work around phpMyID bug
733 if (GetHash(keys, k_keyname, strlen(k_keyname), (void *) &k_value)) {
734 snprintf(k_o_keyname, sizeof k_o_keyname, "openid.%s", k_keyname);
735 curl_formadd(&formpost, &lastptr,
736 CURLFORM_COPYNAME, k_o_keyname,
737 CURLFORM_COPYCONTENTS, k_value,
739 CtdlLogPrintf(CTDL_DEBUG, "%25s : %s\n", k_o_keyname, k_value);
742 CtdlLogPrintf(CTDL_INFO, "OpenID: signed field '%s' is missing\n",
749 curl = curl_easy_init();
750 curl_easy_setopt(curl, CURLOPT_URL, oiddata->server);
751 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
752 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0);
753 curl_easy_setopt(curl, CURLOPT_WRITEDATA, &fh);
754 curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fh_callback);
755 curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
756 curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errmsg);
757 curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
758 curl_easy_setopt(curl, CURLOPT_USERAGENT, CITADEL);
759 if (!IsEmptyStr(config.c_ip_addr)) {
760 curl_easy_setopt(curl, CURLOPT_INTERFACE, config.c_ip_addr);
763 res = curl_easy_perform(curl);
765 CtdlLogPrintf(CTDL_DEBUG, "cmd_oidf() libcurl error %d: %s\n", res, errmsg);
767 curl_easy_cleanup(curl);
768 curl_formfree(formpost);
770 valbuf[fh.total_bytes_received] = 0;
772 if (bmstrcasestr(valbuf, "is_valid:true")) {
773 oiddata->verified = 1;
776 CtdlLogPrintf(CTDL_DEBUG, "Authentication %s.\n", (oiddata->verified ? "succeeded" : "failed") );
778 /* Respond to the client */
780 if (oiddata->verified) {
782 /* If we were already logged in, attach the OpenID to the user's account */
784 if (attach_openid(&CC->user, oiddata->claimed_id) == 0) {
792 /* Otherwise, a user is attempting to log in using the verified OpenID */
795 * Existing user who has claimed this OpenID?
797 * Note: if you think that sending the password back over the wire is insecure,
798 * check your assumptions. If someone has successfully asserted an OpenID that
799 * is associated with the account, they already have password equivalency and can
800 * login, so they could just as easily change the password, etc.
802 if (login_via_openid(oiddata->claimed_id) == 0) {
803 cprintf("authenticate\n%s\n%s\n", CC->user.fullname, CC->user.password);
804 logged_in_response();
808 * If this system does not allow self-service new user registration, the
809 * remaining modes do not apply, so fail here and now.
811 else if (config.c_disable_newu) {
816 * New user whose OpenID is verified and Simple Registration Extension is in use?
818 else if (openid_create_user_via_sreg(oiddata->claimed_id, keys) == 0) {
819 cprintf("authenticate\n%s\n%s\n", CC->user.fullname, CC->user.password);
820 logged_in_response();
824 * OpenID is verified, but the desired username either was not specified or
825 * conflicts with an existing user. Manual account creation is required.
828 char *desired_name = NULL;
829 cprintf("verify_only\n");
830 cprintf("%s\n", oiddata->claimed_id);
831 if (GetHash(keys, "sreg.nickname", 13, (void *) &desired_name)) {
832 cprintf("%s\n", desired_name);
845 if (oiddata->sreg_keys != NULL) {
846 DeleteHash(&oiddata->sreg_keys);
847 oiddata->sreg_keys = NULL;
849 oiddata->sreg_keys = keys;
854 /**************************************************************************/
856 /* Functions in this section handle module initialization and shutdown */
858 /**************************************************************************/
862 * This cleanup function blows away the temporary memory used by this module.
864 void openid_cleanup_function(void) {
865 struct ctdl_openid *oiddata = (struct ctdl_openid *) CC->openid_data;
867 if (oiddata != NULL) {
868 CtdlLogPrintf(CTDL_DEBUG, "Clearing OpenID session state\n");
869 if (oiddata->sreg_keys != NULL) {
870 DeleteHash(&oiddata->sreg_keys);
871 oiddata->sreg_keys = NULL;
878 CTDL_MODULE_INIT(openid_rp)
881 curl_global_init(CURL_GLOBAL_ALL);
883 /* Only enable the OpenID command set when native mode authentication is in use. */
884 if (config.c_auth_mode == AUTHMODE_NATIVE) {
885 CtdlRegisterProtoHook(cmd_oids, "OIDS", "Setup OpenID authentication");
886 CtdlRegisterProtoHook(cmd_oidf, "OIDF", "Finalize OpenID authentication");
887 CtdlRegisterProtoHook(cmd_oidl, "OIDL", "List OpenIDs associated with an account");
888 CtdlRegisterProtoHook(cmd_oidd, "OIDD", "Detach an OpenID from an account");
889 CtdlRegisterProtoHook(cmd_oidc, "OIDC", "Create new user after validating OpenID");
891 CtdlRegisterSessionHook(openid_cleanup_function, EVT_LOGOUT);
892 CtdlRegisterUserHook(openid_purge, EVT_PURGEUSER);
895 /* return our Subversion id for the Log */