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;
137 keys = NewHash(1, NULL);
141 cdb_rewind(CDB_OPENID);
142 while (cdboi = cdb_next_item(CDB_OPENID), cdboi != NULL) {
143 if (cdboi->len > sizeof(long)) {
144 memcpy(&usernum, cdboi->ptr, sizeof(long));
145 if (usernum == usbuf->usernum) {
146 deleteme = strdup(cdboi->ptr + sizeof(long)),
147 Put(keys, deleteme, strlen(deleteme), deleteme, generic_free_handler);
153 /* Go through the hash list, deleting keys we stored in it */
155 HashPos = GetNewHashPos(keys, 0);
156 while (GetNextHashPos(keys, HashPos, &len, &Key, &Value)!=0)
158 CtdlLogPrintf(CTDL_DEBUG, "Deleting associated OpenID <%s>\n", Value);
159 cdb_delete(CDB_OPENID, Value, strlen(Value));
160 /* note: don't free(Value) -- deleting the hash list will handle this for us */
162 DeleteHashPos(&HashPos);
169 * List the OpenIDs associated with the currently logged in account
171 void cmd_oidl(char *argbuf) {
172 struct cdbdata *cdboi;
175 if (CtdlAccessCheck(ac_logged_in)) return;
176 cdb_rewind(CDB_OPENID);
177 cprintf("%d Associated OpenIDs:\n", LISTING_FOLLOWS);
179 while (cdboi = cdb_next_item(CDB_OPENID), cdboi != NULL) {
180 if (cdboi->len > sizeof(long)) {
181 memcpy(&usernum, cdboi->ptr, sizeof(long));
182 if (usernum == CC->user.usernum) {
183 cprintf("%s\n", cdboi->ptr + sizeof(long));
193 * List ALL OpenIDs in the database
195 void cmd_oida(char *argbuf) {
196 struct cdbdata *cdboi;
198 struct ctdluser usbuf;
200 if (CtdlAccessCheck(ac_aide)) return;
201 cdb_rewind(CDB_OPENID);
202 cprintf("%d List of all OpenIDs in the database:\n", LISTING_FOLLOWS);
204 while (cdboi = cdb_next_item(CDB_OPENID), cdboi != NULL) {
205 if (cdboi->len > sizeof(long)) {
206 memcpy(&usernum, cdboi->ptr, sizeof(long));
207 if (getuserbynumber(&usbuf, usernum) != 0) {
208 usbuf.fullname[0] = 0;
210 cprintf("%s|%ld|%s\n",
211 cdboi->ptr + sizeof(long),
223 * Attempt to register (populate the vCard) the currently-logged-in user
224 * using the data from Simple Registration Extension, if present.
226 void populate_vcard_from_sreg(HashList *sreg_keys) {
229 int pop = 0; /* number of fields populated */
231 char *postcode = NULL;
232 char *country = NULL;
234 if (!sreg_keys) return;
238 if (GetHash(sreg_keys, "identity", 8, (void *) &data)) {
239 vcard_add_prop(v, "url;type=openid", data);
243 if (GetHash(sreg_keys, "sreg.email", 10, (void *) &data)) {
244 vcard_add_prop(v, "email;internet", data);
248 if (GetHash(sreg_keys, "sreg.nickname", 13, (void *) &data)) {
249 vcard_add_prop(v, "nickname", data);
253 if (GetHash(sreg_keys, "sreg.fullname", 13, (void *) &data)) {
255 vcard_add_prop(v, "fn", data);
256 vcard_fn_to_n(n, data, sizeof n);
257 vcard_add_prop(v, "n", n);
261 if (!GetHash(sreg_keys, "sreg.postcode", 13, (void *) &postcode)) {
265 if (!GetHash(sreg_keys, "sreg.country", 12, (void *) &country)) {
269 if (postcode || country) {
271 snprintf(adr, sizeof adr, ";;;;;%s;%s",
272 (postcode ? postcode : ""),
273 (country ? country : "")
275 vcard_add_prop(v, "adr", adr);
279 if (GetHash(sreg_keys, "sreg.dob", 8, (void *) &data)) {
280 vcard_add_prop(v, "bday", data);
284 if (GetHash(sreg_keys, "sreg.gender", 11, (void *) &data)) {
285 vcard_add_prop(v, "x-funambol-gender", data);
289 /* Only save the vCard if there is some useful data in it */
292 ser = vcard_serialize(v);
294 CtdlWriteObject(USERCONFIGROOM, "text/x-vcard",
295 ser, strlen(ser)+1, &CC->user, 0, 0, 0
305 * Create a new user account, manually specifying the name, after successfully
306 * verifying an OpenID (which will of course be attached to the account)
308 void cmd_oidc(char *argbuf) {
309 struct ctdl_openid *oiddata = (struct ctdl_openid *) CC->openid_data;
312 cprintf("%d You have not verified an OpenID yet.\n", ERROR);
316 if (!oiddata->verified) {
317 cprintf("%d You have not verified an OpenID yet.\n", ERROR);
321 /* We can make the semantics of OIDC exactly the same as NEWU, simply
322 * by _calling_ cmd_newu() and letting it run. Very clever!
326 /* Now, if this logged us in, we have to attach the OpenID */
328 attach_openid(&CC->user, oiddata->claimed_id);
329 if (oiddata->sreg_keys != NULL) {
330 populate_vcard_from_sreg(oiddata->sreg_keys);
340 * Detach an OpenID from the currently logged in account
342 void cmd_oidd(char *argbuf) {
343 struct cdbdata *cdboi;
344 char id_to_detach[1024];
345 int this_is_mine = 0;
348 if (CtdlAccessCheck(ac_logged_in)) return;
349 extract_token(id_to_detach, argbuf, 0, '|', sizeof id_to_detach);
350 if (IsEmptyStr(id_to_detach)) {
351 cprintf("%d An empty OpenID URL is not allowed.\n", ERROR + ILLEGAL_VALUE);
354 cdb_rewind(CDB_OPENID);
355 while (cdboi = cdb_next_item(CDB_OPENID), cdboi != NULL) {
356 if (cdboi->len > sizeof(long)) {
357 memcpy(&usernum, cdboi->ptr, sizeof(long));
358 if (usernum == CC->user.usernum) {
366 cprintf("%d That OpenID was not found or not associated with your account.\n",
367 ERROR + ILLEGAL_VALUE);
371 cdb_delete(CDB_OPENID, id_to_detach, strlen(id_to_detach));
372 cprintf("%d %s detached from your account.\n", CIT_OK, id_to_detach);
378 * Attempt to auto-create a new Citadel account using the nickname from Simple Registration Extension
380 int openid_create_user_via_sreg(char *claimed_id, HashList *sreg_keys)
382 char *desired_name = NULL;
383 char new_password[32];
385 if (config.c_auth_mode != AUTHMODE_NATIVE) return(1);
386 if (config.c_disable_newu) return(2);
387 if (CC->logged_in) return(3);
388 if (!GetHash(sreg_keys, "sreg.nickname", 13, (void *) &desired_name)) return(4);
390 CtdlLogPrintf(CTDL_DEBUG, "The desired account name is <%s>\n", desired_name);
392 if (!getuser(&CC->user, desired_name)) {
393 CtdlLogPrintf(CTDL_DEBUG, "<%s> is already taken by another user.\n", desired_name);
394 memset(&CC->user, 0, sizeof(struct ctdluser));
398 /* The desired account name is available. Create the account and log it in! */
399 if (create_user(desired_name, 1)) return(6);
401 snprintf(new_password, sizeof new_password, "%08lx%08lx", random(), random());
402 CtdlSetPassword(new_password);
403 attach_openid(&CC->user, claimed_id);
404 populate_vcard_from_sreg(sreg_keys);
410 * If a user account exists which is associated with the Claimed ID, log it in and return zero.
411 * Otherwise it returns nonzero.
413 int login_via_openid(char *claimed_id)
415 struct cdbdata *cdboi;
418 cdboi = cdb_fetch(CDB_OPENID, claimed_id, strlen(claimed_id));
423 memcpy(&usernum, cdboi->ptr, sizeof(long));
426 if (!getuserbynumber(&CC->user, usernum)) {
427 /* Now become the user we just created */
428 safestrncpy(CC->curr_user, CC->user.fullname, sizeof CC->curr_user);
433 memset(&CC->user, 0, sizeof(struct ctdluser));
441 /**************************************************************************/
443 /* Functions in this section handle OpenID protocol */
445 /**************************************************************************/
449 * Locate a <link> tag and, given its 'rel=' parameter, return its 'href' parameter
451 void extract_link(char *target_buf, int target_size, char *rel, char *source_buf)
453 char *ptr = source_buf;
455 if (!target_buf) return;
457 if (!source_buf) return;
461 while (ptr = bmstrcasestr(ptr, "<link"), ptr != NULL) {
463 char work_buffer[2048];
464 char *link_tag_start = NULL;
465 char *link_tag_end = NULL;
470 link_tag_start = ptr;
471 link_tag_end = strchr(ptr, '>');
475 if ((link_tag_end) && (link_tag_end > link_tag_start)) {
477 len = link_tag_end - link_tag_start;
478 if (len > sizeof work_buffer) len = sizeof work_buffer;
479 memcpy(work_buffer, link_tag_start, len);
481 char *rel_start = NULL;
482 char *rel_end = NULL;
483 rel_start = bmstrcasestr(work_buffer, "rel=");
485 rel_start = strchr(rel_start, '\"');
488 rel_end = strchr(rel_start, '\"');
489 if ((rel_end) && (rel_end > rel_start)) {
490 safestrncpy(rel_tag, rel_start, rel_end - rel_start + 1);
495 char *href_start = NULL;
496 char *href_end = NULL;
497 href_start = bmstrcasestr(work_buffer, "href=");
499 href_start = strchr(href_start, '\"');
502 href_end = strchr(href_start, '\"');
503 if ((href_end) && (href_end > href_start)) {
504 safestrncpy(href_tag, href_start, href_end - href_start + 1);
509 if (!strcasecmp(rel, rel_tag)) {
510 safestrncpy(target_buf, href_tag, target_size);
526 int total_bytes_received;
531 size_t fh_callback(void *ptr, size_t size, size_t nmemb, void *stream)
533 struct fh_data *fh = (struct fh_data *) stream;
534 int got_bytes = (size * nmemb);
536 if (fh->total_bytes_received + got_bytes > fh->maxbytes) {
537 got_bytes = fh->maxbytes - fh->total_bytes_received;
540 memcpy(&fh->buf[fh->total_bytes_received], ptr, got_bytes);
541 fh->total_bytes_received += got_bytes;
544 return (size * nmemb); /* always succeed; libcurl doesn't need to know if we truncated it */
550 * Begin an HTTP fetch (returns number of bytes actually fetched, or -1 for error) using libcurl.
552 * If 'normalize_len' is nonzero, the caller is specifying the buffer size of 'url', and is
553 * requesting that the effective (normalized) URL be copied back to it.
555 int fetch_http(char *url, char *target_buf, int maxbytes, int normalize_len)
559 char errmsg[1024] = "";
560 struct fh_data fh = {
565 char *effective_url = NULL;
567 if (!url) return(-1);
568 if (!target_buf) return(-1);
569 memset(target_buf, 0, maxbytes);
571 curl = curl_easy_init();
573 CtdlLogPrintf(CTDL_ALERT, "Unable to initialize libcurl.\n");
577 curl_easy_setopt(curl, CURLOPT_URL, url);
578 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
579 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0);
580 curl_easy_setopt(curl, CURLOPT_WRITEDATA, &fh);
581 curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fh_callback);
582 curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errmsg);
583 curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
584 #ifdef CURLOPT_HTTP_CONTENT_DECODING
585 curl_easy_setopt(curl, CURLOPT_HTTP_CONTENT_DECODING, 1);
586 curl_easy_setopt(curl, CURLOPT_ENCODING, "");
588 curl_easy_setopt(curl, CURLOPT_USERAGENT, CITADEL);
589 curl_easy_setopt(curl, CURLOPT_TIMEOUT, 180); /* die after 180 seconds */
590 if (!IsEmptyStr(config.c_ip_addr)) {
591 curl_easy_setopt(curl, CURLOPT_INTERFACE, config.c_ip_addr);
593 res = curl_easy_perform(curl);
595 CtdlLogPrintf(CTDL_DEBUG, "fetch_http() libcurl error %d: %s\n", res, errmsg);
597 if (normalize_len > 0) {
598 curl_easy_getinfo(curl, CURLINFO_EFFECTIVE_URL, &effective_url);
599 safestrncpy(url, effective_url, normalize_len);
601 curl_easy_cleanup(curl);
602 return fh.total_bytes_received;
607 * Setup an OpenID authentication
609 void cmd_oids(char *argbuf) {
610 char return_to[1024];
611 char trust_root[1024];
614 struct CitContext *CCC = CC; /* CachedCitContext - performance boost */
615 struct ctdl_openid *oiddata;
617 oiddata = (struct ctdl_openid *) CCC->openid_data;
619 if (oiddata != NULL) {
620 if (oiddata->sreg_keys != NULL) {
621 DeleteHash(&oiddata->sreg_keys);
622 oiddata->sreg_keys = NULL;
624 free(CCC->openid_data);
626 oiddata = malloc(sizeof(struct ctdl_openid));
627 if (oiddata == NULL) {
628 cprintf("%d malloc failed\n", ERROR + INTERNAL_ERROR);
631 memset(oiddata, 0, sizeof(struct ctdl_openid));
632 CCC->openid_data = (void *) oiddata;
634 extract_token(oiddata->claimed_id, argbuf, 0, '|', sizeof oiddata->claimed_id);
635 extract_token(return_to, argbuf, 1, '|', sizeof return_to);
636 extract_token(trust_root, argbuf, 2, '|', sizeof trust_root);
637 oiddata->verified = 0;
639 i = fetch_http(oiddata->claimed_id, buf, sizeof buf - 1, sizeof oiddata->claimed_id);
640 CtdlLogPrintf(CTDL_DEBUG, "Normalized URL and Claimed ID is: %s\n", oiddata->claimed_id);
641 buf[sizeof buf - 1] = 0;
643 char openid_delegate[1024];
645 extract_link(oiddata->server, sizeof oiddata->server, "openid.server", buf);
646 extract_link(openid_delegate, sizeof openid_delegate, "openid.delegate", buf);
648 if (IsEmptyStr(oiddata->server)) {
649 cprintf("%d There is no OpenID identity provider at this URL.\n", ERROR);
653 /* Empty delegate is legal; we just use the openid_url instead */
654 if (IsEmptyStr(openid_delegate)) {
655 safestrncpy(openid_delegate, oiddata->claimed_id, sizeof openid_delegate);
658 /* Assemble a URL to which the user-agent will be redirected. */
659 char redirect_string[4096];
660 char escaped_identity[512];
661 char escaped_return_to[2048];
662 char escaped_trust_root[1024];
663 char escaped_sreg_optional[256];
665 urlesc(escaped_identity, sizeof escaped_identity, openid_delegate);
666 urlesc(escaped_return_to, sizeof escaped_return_to, return_to);
667 urlesc(escaped_trust_root, sizeof escaped_trust_root, trust_root);
668 urlesc(escaped_sreg_optional, sizeof escaped_sreg_optional,
669 "nickname,email,fullname,postcode,country,dob,gender");
671 snprintf(redirect_string, sizeof redirect_string,
673 "?openid.mode=checkid_setup"
674 "&openid.identity=%s"
675 "&openid.return_to=%s"
676 "&openid.trust_root=%s"
677 "&openid.sreg.optional=%s"
683 escaped_sreg_optional
685 cprintf("%d %s\n", CIT_OK, redirect_string);
689 cprintf("%d Unable to fetch OpenID URL\n", ERROR);
697 * Finalize an OpenID authentication
699 void cmd_oidf(char *argbuf) {
703 HashList *keys = NULL;
704 struct ctdl_openid *oiddata = (struct ctdl_openid *) CC->openid_data;
706 keys = NewHash(1, NULL);
708 cprintf("%d NewHash() failed\n", ERROR + INTERNAL_ERROR);
712 cprintf("%d Transmit OpenID data now\n", START_CHAT_MODE);
714 while (client_getln(buf, sizeof buf), strcmp(buf, "000")) {
715 extract_token(thiskey, buf, 0, '|', sizeof thiskey);
716 extract_token(thisdata, buf, 1, '|', sizeof thisdata);
717 CtdlLogPrintf(CTDL_DEBUG, "%s: [%d] %s\n", thiskey, strlen(thisdata), thisdata);
718 Put(keys, thiskey, strlen(thiskey), strdup(thisdata), generic_free_handler);
722 /* Now that we have all of the parameters, we have to validate the signature against the server */
723 CtdlLogPrintf(CTDL_DEBUG, "About to validate the signature...\n");
727 struct curl_httppost *formpost = NULL;
728 struct curl_httppost *lastptr = NULL;
729 char errmsg[1024] = "";
730 char *o_assoc_handle = NULL;
732 char *o_signed = NULL;
733 int num_signed_values;
736 char k_o_keyname[128];
737 char *k_value = NULL;
740 struct fh_data fh = {
746 curl_formadd(&formpost, &lastptr,
747 CURLFORM_COPYNAME, "openid.mode",
748 CURLFORM_COPYCONTENTS, "check_authentication",
750 CtdlLogPrintf(CTDL_DEBUG, "%25s : %s\n", "openid.mode", "check_authentication");
752 if (GetHash(keys, "assoc_handle", 12, (void *) &o_assoc_handle)) {
753 curl_formadd(&formpost, &lastptr,
754 CURLFORM_COPYNAME, "openid.assoc_handle",
755 CURLFORM_COPYCONTENTS, o_assoc_handle,
757 CtdlLogPrintf(CTDL_DEBUG, "%25s : %s\n", "openid.assoc_handle", o_assoc_handle);
760 if (GetHash(keys, "sig", 3, (void *) &o_sig)) {
761 curl_formadd(&formpost, &lastptr,
762 CURLFORM_COPYNAME, "openid.sig",
763 CURLFORM_COPYCONTENTS, o_sig,
765 CtdlLogPrintf(CTDL_DEBUG, "%25s : %s\n", "openid.sig", o_sig);
768 if (GetHash(keys, "signed", 6, (void *) &o_signed)) {
769 curl_formadd(&formpost, &lastptr,
770 CURLFORM_COPYNAME, "openid.signed",
771 CURLFORM_COPYCONTENTS, o_signed,
773 CtdlLogPrintf(CTDL_DEBUG, "%25s : %s\n", "openid.signed", o_signed);
775 num_signed_values = num_tokens(o_signed, ',');
776 for (i=0; i<num_signed_values; ++i) {
777 extract_token(k_keyname, o_signed, i, ',', sizeof k_keyname);
778 if (strcasecmp(k_keyname, "mode")) { // work around phpMyID bug
779 if (GetHash(keys, k_keyname, strlen(k_keyname), (void *) &k_value)) {
780 snprintf(k_o_keyname, sizeof k_o_keyname, "openid.%s", k_keyname);
781 curl_formadd(&formpost, &lastptr,
782 CURLFORM_COPYNAME, k_o_keyname,
783 CURLFORM_COPYCONTENTS, k_value,
785 CtdlLogPrintf(CTDL_DEBUG, "%25s : %s\n", k_o_keyname, k_value);
788 CtdlLogPrintf(CTDL_INFO, "OpenID: signed field '%s' is missing\n",
795 curl = curl_easy_init();
796 curl_easy_setopt(curl, CURLOPT_URL, oiddata->server);
797 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
798 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0);
799 curl_easy_setopt(curl, CURLOPT_WRITEDATA, &fh);
800 curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fh_callback);
801 curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
802 curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errmsg);
803 curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
804 #ifdef CURLOPT_HTTP_CONTENT_DECODING
805 curl_easy_setopt(curl, CURLOPT_HTTP_CONTENT_DECODING, 1);
806 curl_easy_setopt(curl, CURLOPT_ENCODING, "");
808 curl_easy_setopt(curl, CURLOPT_USERAGENT, CITADEL);
809 curl_easy_setopt(curl, CURLOPT_TIMEOUT, 180); /* die after 180 seconds */
810 if (!IsEmptyStr(config.c_ip_addr)) {
811 curl_easy_setopt(curl, CURLOPT_INTERFACE, config.c_ip_addr);
814 res = curl_easy_perform(curl);
816 CtdlLogPrintf(CTDL_DEBUG, "cmd_oidf() libcurl error %d: %s\n", res, errmsg);
818 curl_easy_cleanup(curl);
819 curl_formfree(formpost);
821 valbuf[fh.total_bytes_received] = 0;
823 if (bmstrcasestr(valbuf, "is_valid:true")) {
824 oiddata->verified = 1;
827 CtdlLogPrintf(CTDL_DEBUG, "Authentication %s.\n", (oiddata->verified ? "succeeded" : "failed") );
829 /* Respond to the client */
831 if (oiddata->verified) {
833 /* If we were already logged in, attach the OpenID to the user's account */
835 if (attach_openid(&CC->user, oiddata->claimed_id) == 0) {
837 CtdlLogPrintf(CTDL_DEBUG, "OpenID attach succeeded\n");
841 CtdlLogPrintf(CTDL_DEBUG, "OpenID attach failed\n");
845 /* Otherwise, a user is attempting to log in using the verified OpenID */
848 * Existing user who has claimed this OpenID?
850 * Note: if you think that sending the password back over the wire is insecure,
851 * check your assumptions. If someone has successfully asserted an OpenID that
852 * is associated with the account, they already have password equivalency and can
853 * login, so they could just as easily change the password, etc.
855 if (login_via_openid(oiddata->claimed_id) == 0) {
856 cprintf("authenticate\n%s\n%s\n", CC->user.fullname, CC->user.password);
857 logged_in_response();
858 CtdlLogPrintf(CTDL_DEBUG, "Logged in using previously claimed OpenID\n");
862 * If this system does not allow self-service new user registration, the
863 * remaining modes do not apply, so fail here and now.
865 else if (config.c_disable_newu) {
867 CtdlLogPrintf(CTDL_DEBUG, "Creating user failed due to local policy\n");
871 * New user whose OpenID is verified and Simple Registration Extension is in use?
873 else if (openid_create_user_via_sreg(oiddata->claimed_id, keys) == 0) {
874 cprintf("authenticate\n%s\n%s\n", CC->user.fullname, CC->user.password);
875 logged_in_response();
876 CtdlLogPrintf(CTDL_DEBUG, "Successfully auto-created new user\n");
880 * OpenID is verified, but the desired username either was not specified or
881 * conflicts with an existing user. Manual account creation is required.
884 char *desired_name = NULL;
885 cprintf("verify_only\n");
886 cprintf("%s\n", oiddata->claimed_id);
887 if (GetHash(keys, "sreg.nickname", 13, (void *) &desired_name)) {
888 cprintf("%s\n", desired_name);
893 CtdlLogPrintf(CTDL_DEBUG, "The desired Simple Registration name is already taken.\n");
902 if (oiddata->sreg_keys != NULL) {
903 DeleteHash(&oiddata->sreg_keys);
904 oiddata->sreg_keys = NULL;
906 oiddata->sreg_keys = keys;
911 /**************************************************************************/
913 /* Functions in this section handle module initialization and shutdown */
915 /**************************************************************************/
919 * This cleanup function blows away the temporary memory used by this module.
921 void openid_cleanup_function(void) {
922 struct ctdl_openid *oiddata = (struct ctdl_openid *) CC->openid_data;
924 if (oiddata != NULL) {
925 CtdlLogPrintf(CTDL_DEBUG, "Clearing OpenID session state\n");
926 if (oiddata->sreg_keys != NULL) {
927 DeleteHash(&oiddata->sreg_keys);
928 oiddata->sreg_keys = NULL;
935 CTDL_MODULE_INIT(openid_rp)
938 curl_global_init(CURL_GLOBAL_ALL);
940 /* Only enable the OpenID command set when native mode authentication is in use. */
941 if (config.c_auth_mode == AUTHMODE_NATIVE) {
942 CtdlRegisterProtoHook(cmd_oids, "OIDS", "Setup OpenID authentication");
943 CtdlRegisterProtoHook(cmd_oidf, "OIDF", "Finalize OpenID authentication");
944 CtdlRegisterProtoHook(cmd_oidl, "OIDL", "List OpenIDs associated with an account");
945 CtdlRegisterProtoHook(cmd_oidd, "OIDD", "Detach an OpenID from an account");
946 CtdlRegisterProtoHook(cmd_oidc, "OIDC", "Create new user after validating OpenID");
947 CtdlRegisterProtoHook(cmd_oida, "OIDA", "List all OpenIDs in the database");
949 CtdlRegisterSessionHook(openid_cleanup_function, EVT_LOGOUT);
950 CtdlRegisterUserHook(openid_purge, EVT_PURGEUSER);
953 /* return our Subversion id for the Log */