* add a Display name to our handlers; this will be used by DAV handlers.
[citadel.git] / webcit / auth.c
index 3f4a4e7833757e6e915c7eb6585d8bfbc03dbafe..9375c1f1e6907f3088cac3f9df3d50dd589533f5 100644 (file)
@@ -8,6 +8,7 @@
 #include "webserver.h"
 #include <ctype.h>
 
+extern uint32_t hashlittle( const void *key, size_t length, uint32_t initval);
 
 void display_reg(int during_login);
 
@@ -29,7 +30,6 @@ void initialize_axdefs(void) {
 
 
 
-
 /* 
  * Display the login screen
  * mesg = the error message if last attempt failed.
@@ -74,7 +74,7 @@ void display_openid_name_request(const StrBuf *claimed_id, const StrBuf *usernam
 
        if (StrLength(username) > 0) {
                        Buf = NewStrBufPlain(NULL, StrLength(username));
-                       StrEscAppend(Buf, claimed_id, NULL, 0, 0);
+                       StrEscAppend(Buf, username, NULL, 0, 0);
                        svprintf(HKEY("REASON"), WCS_STRING,
                                 _("However, the user name '%s' conflicts with an existing user."), 
                                 ChrPtr(Buf));
@@ -116,7 +116,6 @@ void become_logged_in(const StrBuf *user, const StrBuf *pass, StrBuf *serv_respo
        wcsession *WCC = WC;
        StrBuf *Buf;
        StrBuf *FloorDiv;
-       StrBuf *Language = NULL;
 
        WCC->logged_in = 1;
 
@@ -153,22 +152,13 @@ void become_logged_in(const StrBuf *user, const StrBuf *pass, StrBuf *serv_respo
                const char *pch;
 
                pch = ChrPtr(Buf) + 4;
-               WCC->new_mail = StrBufExtractNext_long(Buf, &pch, '|');
+               WCC->new_mail  = StrBufExtractNext_long(Buf, &pch, '|');
                WCC->need_regi = StrBufExtractNext_long(Buf, &pch, '|');
                WCC->need_vali = StrBufExtractNext_long(Buf, &pch, '|');
                if (WCC->cs_inet_email == NULL)
                        WCC->cs_inet_email  = NewStrBuf();
                StrBufExtract_NextToken(WCC->cs_inet_email, Buf, &pch, '|');
        }
-       if (havebstr("language"))
-               set_preference("language", NewStrBufDup(SBSTR("language")), 1);
-       else {
-               get_preference("language", &Language);
-               if (Language != NULL) {
-                       set_selected_language(ChrPtr(Language));
-                       go_selected_language();         /* set locale */
-               }
-       }
        get_preference("floordiv_expanded", &FloorDiv);
        WCC->floordiv_expanded = FloorDiv;
        FreeStrBuf(&Buf);
@@ -330,8 +320,8 @@ void do_openid_login(void)
                snprintf(buf, sizeof buf,
                        "OIDS %s|%s://%s/finalize_openid_login|%s://%s",
                        bstr("openid_url"),
-                        (is_https ? "https" : "http"), ChrPtr(WCC->http_host),
-                        (is_https ? "https" : "http"), ChrPtr(WCC->http_host)
+                        (is_https ? "https" : "http"), ChrPtr(WCC->Hdr->HR.http_host),
+                        (is_https ? "https" : "http"), ChrPtr(WCC->Hdr->HR.http_host)
                );
 
                serv_puts(buf);
@@ -379,8 +369,8 @@ void finalize_openid_login(void)
                                const char *HKey;
                                HashPos *Cursor;
                                
-                               Cursor = GetNewHashPos (WCC->urlstrings, 0);
-                               while (GetNextHashPos(WCC->urlstrings, Cursor, &HKLen, &HKey, &U)) {
+                               Cursor = GetNewHashPos (WCC->Hdr->urlstrings, 0);
+                               while (GetNextHashPos(WCC->Hdr->urlstrings, Cursor, &HKLen, &HKey, &U)) {
                                        u = (urlcontent*) U;
                                        if (!strncasecmp(u->url_key, "openid.", 7)) {
                                                serv_printf("%s|%s", &u->url_key[7], ChrPtr(u->url_data));
@@ -516,14 +506,16 @@ void do_welcome(void)
         */
        if (!get_preference("startpage", &Buf)) {
                Buf = NewStrBuf ();
-               StrBufPrintf(Buf, "dotskip&room=_BASEROOM_");
+               StrBufPrintf(Buf, "dotskip?room=_BASEROOM_");
                set_preference("startpage", Buf, 1);
        }
        if (ChrPtr(Buf)[0] == '/') {
                StrBufCutLeft(Buf, 1);
        }
-       if (StrLength(Buf) == 0)
+       if (StrLength(Buf) == 0) {
                StrBufAppendBufPlain(Buf, "dotgoto?room=_BASEROOM_", -1, 0);
+       }
+       lprintf(9, "Redirecting to user's start page: %s\n", ChrPtr(Buf));
        http_redirect(ChrPtr(Buf));
 }
 
@@ -586,10 +578,18 @@ void do_logout(void)
        wprintf("<hr /><div class=\"buttons\"> "
                "<span class=\"button_link\"><a href=\".\">");
        wprintf(_("Log in again"));
-       wprintf("</a></span>&nbsp;&nbsp;&nbsp;<span class=\"button_link\">"
+       wprintf("</a></span>");
+
+       /* The "close window" link is commented out because some browsers don't
+        * allow it to work.
+        *
+       wprintf("&nbsp;&nbsp;&nbsp;<span class=\"button_link\">"
                "<a href=\"javascript:window.close();\">");
        wprintf(_("Close window"));
-       wprintf("</a></span></div></div></div></div>\n");
+       wprintf("</a></span>");
+        */
+
+       wprintf("</div></div></div></div>\n");
        wDumpContent(2);
        end_webcit_session();
 }
@@ -740,20 +740,34 @@ void validate(void)
  */
 void display_reg(int during_login)
 {
-       message_summary *VCMsg;
-       wc_mime_attachment *VCAtt;
+       StrBuf *Buf;
+       message_summary *VCMsg = NULL;
+       wc_mime_attachment *VCAtt = NULL;
        long vcard_msgnum;
 
-       if (goto_config_room() != 0) {
-               if (during_login) do_welcome();
-               else display_main_menu();
+       Buf = NewStrBuf();
+       if (goto_config_room(Buf) != 0) {
+               lprintf(9, "display_reg() exiting because goto_config_room() failed\n");
+               if (during_login) {
+                       do_welcome();
+               }
+               else {
+                       display_main_menu();
+               }
+               FreeStrBuf(&Buf);
                return;
        }
 
+       FreeStrBuf(&Buf);
        vcard_msgnum = locate_user_vcard_in_this_room(&VCMsg, &VCAtt);
        if (vcard_msgnum < 0L) {
-               if (during_login) do_welcome();
-               else display_main_menu();
+               lprintf(9, "display_reg() exiting because locate_user_vcard_in_this_room() failed\n");
+               if (during_login) {
+                       do_welcome();
+               }
+               else {
+                       display_main_menu();
+               }
                return;
        }
 
@@ -761,9 +775,14 @@ void display_reg(int during_login)
                do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, "do_welcome", USERCONFIGROOM);
        }
        else {
-               do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, "display_main_menu", USERCONFIGROOM);
+               StrBuf *ReturnTo;
+               ReturnTo = NewStrBufPlain(HKEY("display_main_menu?gotofirst="));
+               StrBufAppendBuf(ReturnTo, WC->wc_roomname, 0);
+               do_edit_vcard(vcard_msgnum, "1", VCMsg, VCAtt, ChrPtr(ReturnTo), USERCONFIGROOM);
+               FreeStrBuf(&ReturnTo);
        }
 
+       /* FIXME - don't we have to free VCMsg and VCAtt ?? */
 }
 
 
@@ -878,45 +897,158 @@ void changepw(void)
 
 int ConditionalAide(StrBuf *Target, WCTemplputParams *TP)
 {
-       return (WC->is_aide == 0);
+       wcsession *WCC = WC;
+       return (WCC != NULL)? (WC->is_aide == 0) : 0;
 }
 
 int ConditionalRoomAide(StrBuf *Target, WCTemplputParams *TP)
 {
-       return (WC->is_room_aide == 0);
+       wcsession *WCC = WC;
+       return (WCC != NULL)? (WCC->is_room_aide == 0) : 0;
 }
 
-int ConditionalIsLoggedIn(StrBuf *Target, WCTemplputParams *TP) {
-  return (WC->logged_in == 0);
+
+int ConditionalIsLoggedIn(StrBuf *Target, WCTemplputParams *TP) 
+{
+       wcsession *WCC = WC;
+       return (WCC != NULL)? (WCC->logged_in == 0) : 0;
 }
+
+
 int ConditionalRoomAcessDelete(StrBuf *Target, WCTemplputParams *TP)
 {
        wcsession *WCC = WC;
-       return ( (WCC->is_room_aide) || (WCC->is_mailbox) || (WCC->room_flags2 & QR2_COLLABDEL) );
+       return (WCC != NULL)? ( (WCC->is_room_aide) || (WCC->is_mailbox) || (WCC->room_flags2 & QR2_COLLABDEL) ) : 0;
+}
+
+
+void _display_openid_login(void) {
+       display_openid_login(NULL);
+}
+
+
+void _display_reg(void) {
+       display_reg(0);
+}
+
+
+void Header_HandleAuth(StrBuf *Line, ParsedHttpHdrs *hdr)
+{
+       if (hdr->HR.got_auth == NO_AUTH) /* don't override cookie auth... */
+       {
+               if (strncasecmp(ChrPtr(Line), "Basic", 5) == 0) {
+                       StrBufCutLeft(Line, 6);
+                       StrBufDecodeBase64(Line);
+                       hdr->HR.plainauth = Line;
+                       hdr->HR.got_auth = AUTH_BASIC;
+               }
+               else 
+                       lprintf(1, "Authentication scheme not supported! [%s]\n", ChrPtr(Line));
+       }
 }
 
+void CheckAuthBasic(ParsedHttpHdrs *hdr)
+{
+/*
+  todo: enable this if we can have other sessions than authenticated ones.
+       if (hdr->DontNeedAuth)
+               return;
+*/
+       StrBufAppendBufPlain(hdr->HR.plainauth, HKEY(":"), 0);
+       StrBufAppendBuf(hdr->HR.plainauth, hdr->HR.user_agent, 0);
+       hdr->HR.SessionKey = hashlittle(SKEY(hdr->HR.plainauth), 89479832);
+/*
+       lprintf(1, "CheckAuthBasic: calculated sessionkey %ld\n", 
+               hdr->HR.SessionKey);
+*/
+}
+
+void GetAuthBasic(ParsedHttpHdrs *hdr)
+{
+       const char *Pos = NULL;
+       if (hdr->c_username == NULL)
+               hdr->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
+       if (hdr->c_password == NULL)
+               hdr->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
+       StrBufExtract_NextToken(hdr->c_username, hdr->HR.plainauth, &Pos, ':');
+       StrBufExtract_NextToken(hdr->c_password, hdr->HR.plainauth, &Pos, ':');
+}
+
+void Header_HandleCookie(StrBuf *Line, ParsedHttpHdrs *hdr)
+{
+       const char *pch;
+/*
+  todo: enable this if we can have other sessions than authenticated ones.
+       if (hdr->DontNeedAuth)
+               return;
+*/
+       pch = strstr(ChrPtr(Line), "webcit=");
+       if (pch == NULL) {
+               return;
+       }
 
+       hdr->HR.RawCookie = Line;
+       StrBufCutLeft(hdr->HR.RawCookie, (pch - ChrPtr(hdr->HR.RawCookie)) + 7);
+       StrBufDecodeHex(hdr->HR.RawCookie);
+
+       cookie_to_stuff(Line, &hdr->HR.desired_session,
+                       hdr->c_username,
+                       hdr->c_password,
+                       hdr->c_roomname,
+                       hdr->c_language
+       );
+       hdr->HR.got_auth = AUTH_COOKIE;
+}
 
-void _display_openid_login(void) {display_openid_login(NULL);}
-void _display_reg(void) {display_reg(0);}
+void 
+HttpNewModule_AUTH
+(ParsedHttpHdrs *httpreq)
+{
+       httpreq->c_username = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_USER));
+       httpreq->c_password = NewStrBufPlain(HKEY(DEFAULT_HTTPAUTH_PASS));
+       httpreq->c_roomname = NewStrBuf();
+       httpreq->c_language = NewStrBuf();
+}
+void 
+HttpDetachModule_AUTH
+(ParsedHttpHdrs *httpreq)
+{
+       FLUSHStrBuf(httpreq->c_username);
+       FLUSHStrBuf(httpreq->c_password);
+       FLUSHStrBuf(httpreq->c_roomname);
+       FLUSHStrBuf(httpreq->c_language);
+}
 
+void 
+HttpDestroyModule_AUTH
+(ParsedHttpHdrs *httpreq)
+{
+       FreeStrBuf(&httpreq->c_username);
+       FreeStrBuf(&httpreq->c_password);
+       FreeStrBuf(&httpreq->c_roomname);
+       FreeStrBuf(&httpreq->c_language);
+}
 
 void 
 InitModule_AUTH
 (void)
 {
-       WebcitAddUrlHandler(HKEY("do_welcome"), do_welcome, ANONYMOUS);
-       WebcitAddUrlHandler(HKEY("login"), do_login, ANONYMOUS);
-       WebcitAddUrlHandler(HKEY("display_openid_login"), _display_openid_login, ANONYMOUS);
-       WebcitAddUrlHandler(HKEY("openid_login"), do_openid_login, ANONYMOUS);
-       WebcitAddUrlHandler(HKEY("finalize_openid_login"), finalize_openid_login, ANONYMOUS);
-       WebcitAddUrlHandler(HKEY("openid_manual_create"), openid_manual_create, ANONYMOUS);
-       WebcitAddUrlHandler(HKEY("do_logout"), do_logout, 0);
-       WebcitAddUrlHandler(HKEY("validate"), validate, 0);
-       WebcitAddUrlHandler(HKEY("display_reg"), _display_reg, 0);
-       WebcitAddUrlHandler(HKEY("display_changepw"), display_changepw, 0);
-       WebcitAddUrlHandler(HKEY("changepw"), changepw, 0);
-       WebcitAddUrlHandler(HKEY("termquit"), do_logout, 0);
+       RegisterHeaderHandler(HKEY("COOKIE"), Header_HandleCookie);
+       RegisterHeaderHandler(HKEY("AUTHORIZATION"), Header_HandleAuth);
+
+       WebcitAddUrlHandler(HKEY(""), "", 0, do_welcome, ANONYMOUS|COOKIEUNNEEDED); /* no url pattern at all? Show login. */
+       WebcitAddUrlHandler(HKEY("do_welcome"), "", 0, do_welcome, ANONYMOUS|COOKIEUNNEEDED);
+       WebcitAddUrlHandler(HKEY("login"), "", 0, do_login, ANONYMOUS|COOKIEUNNEEDED);
+       WebcitAddUrlHandler(HKEY("display_openid_login"), "", 0, _display_openid_login, ANONYMOUS);
+       WebcitAddUrlHandler(HKEY("openid_login"), "", 0, do_openid_login, ANONYMOUS);
+       WebcitAddUrlHandler(HKEY("finalize_openid_login"), "", 0, finalize_openid_login, ANONYMOUS);
+       WebcitAddUrlHandler(HKEY("openid_manual_create"), "", 0, openid_manual_create, ANONYMOUS);
+       WebcitAddUrlHandler(HKEY("do_logout"), "", 0, do_logout, ANONYMOUS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
+       WebcitAddUrlHandler(HKEY("validate"), "", 0, validate, 0);
+       WebcitAddUrlHandler(HKEY("display_reg"), "", 0, _display_reg, 0);
+       WebcitAddUrlHandler(HKEY("display_changepw"), "", 0, display_changepw, 0);
+       WebcitAddUrlHandler(HKEY("changepw"), "", 0, changepw, 0);
+       WebcitAddUrlHandler(HKEY("termquit"), "", 0, do_logout, 0);
 
        RegisterConditional(HKEY("COND:AIDE"), 2, ConditionalAide, CTX_NONE);
        RegisterConditional(HKEY("COND:ROOMAIDE"), 2, ConditionalRoomAide, CTX_NONE);
@@ -925,3 +1057,16 @@ InitModule_AUTH
 
        return ;
 }
+
+
+void 
+SessionDestroyModule_AUTH
+(wcsession *sess)
+{
+       FreeStrBuf(&sess->wc_username);
+       FreeStrBuf(&sess->wc_fullname);
+       FreeStrBuf(&sess->wc_password);
+       FreeStrBuf(&sess->wc_roomname);
+       FreeStrBuf(&sess->httpauth_pass);
+       FreeStrBuf(&sess->cs_inet_email);
+}