Revert "serv_rssclient.c: style update"

[citadel.git] / webcit / dav_options.c

diff --git a/webcit/dav_options.c b/webcit/dav_options.c
new file mode 100644 (file)
index 0000000..f7687cf
--- /dev/null
+++ b/webcit/dav_options.c
@@ -0,0 +1,145 @@
+/*
+ * Handles DAV OPTIONS requests (experimental -- not required by GroupDAV)
+ *
+ * Copyright (c) 2005-2012 by the citadel.org team
+ *
+ * This program is open source software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include "webcit.h"
+#include "webserver.h"
+#include "dav.h"
+
+/*
+ * The pathname is always going to be /groupdav/room_name/msg_num
+ */
+void dav_options(void)
+{
+       wcsession *WCC = WC;
+       StrBuf *dav_roomname;
+       StrBuf *dav_uid;
+       long dav_msgnum = (-1);
+       char datestring[256];
+       time_t now;
+
+       now = time(NULL);
+       http_datestring(datestring, sizeof datestring, now);
+
+       dav_roomname = NewStrBuf();
+       dav_uid = NewStrBuf();
+       StrBufExtract_token(dav_roomname, WCC->Hdr->HR.ReqLine, 0, '/');
+       StrBufExtract_token(dav_uid, WCC->Hdr->HR.ReqLine, 1, '/');
+
+       syslog(LOG_DEBUG, "\033[35m%s (logged_in=%d)\033[0m", ChrPtr(WCC->Hdr->HR.ReqLine), WC->logged_in);
+       /*
+        * If the room name is blank, the client is doing an OPTIONS on the root.
+        */
+       if (StrLength(dav_roomname) == 0) {
+               syslog(LOG_DEBUG, "\033[36mOPTIONS requested for root\033[0m");
+               hprintf("HTTP/1.1 200 OK\r\n");
+               dav_common_headers();
+               hprintf("Date: %s\r\n", datestring);
+               hprintf("DAV: 1\r\n");
+               hprintf("Allow: OPTIONS, PROPFIND\r\n");
+               hprintf("\r\n");
+               begin_burst();
+               end_burst();
+               FreeStrBuf(&dav_roomname);
+               FreeStrBuf(&dav_uid);
+               return;
+       }
+
+       /* Go to the correct room. */
+       if (strcasecmp(ChrPtr(WC->CurRoom.name), ChrPtr(dav_roomname))) {
+               gotoroom(dav_roomname);
+       }
+
+       if (strcasecmp(ChrPtr(WC->CurRoom.name), ChrPtr(dav_roomname))) {
+               syslog(LOG_DEBUG, "\033[36mOPTIONS requested for invalid item\033[0m");
+               hprintf("HTTP/1.1 404 not found\r\n");
+               dav_common_headers();
+               hprintf("Date: %s\r\n", datestring);
+               hprintf(
+                       "Content-Type: text/plain\r\n");
+               begin_burst();
+               wc_printf(
+                       "There is no folder called \"%s\" on this server.\r\n",
+                       ChrPtr(dav_roomname)
+               );
+               end_burst();
+               FreeStrBuf(&dav_roomname);
+               FreeStrBuf(&dav_uid);
+               return;
+       }
+
+       /* If dav_uid is non-empty, client is requesting an OPTIONS on
+        * a specific item in the room.
+        */
+       if (StrLength(dav_uid) != 0) {
+               syslog(LOG_DEBUG, "\033[36mOPTIONS requested for specific item\033[0m");
+               dav_msgnum = locate_message_by_uid(ChrPtr(dav_uid));
+               if (dav_msgnum < 0) {
+                       hprintf("HTTP/1.1 404 not found\r\n");
+                       dav_common_headers();
+                       hprintf("Content-Type: text/plain\r\n");
+                       begin_burst();
+                       wc_printf(
+                               "Object \"%s\" was not found in the \"%s\" folder.\r\n",
+                               ChrPtr(dav_uid),
+                               ChrPtr(dav_roomname)
+                       );
+                       FreeStrBuf(&dav_roomname);
+                       FreeStrBuf(&dav_uid);
+                       end_burst();return;
+               }
+
+               hprintf("HTTP/1.1 200 OK\r\n");
+               dav_common_headers();
+               hprintf("Date: %s\r\n", datestring);
+               hprintf("DAV: 1\r\n");
+               hprintf("Allow: OPTIONS, PROPFIND, GET, PUT, DELETE\r\n");
+               
+               begin_burst();
+               end_burst();
+               FreeStrBuf(&dav_roomname);
+               FreeStrBuf(&dav_uid);
+               return;
+       }
+
+       FreeStrBuf(&dav_roomname);
+       FreeStrBuf(&dav_uid);
+
+       /*
+        * We got to this point, which means that the client is requesting
+        * an OPTIONS on the room itself.
+        */
+       syslog(LOG_DEBUG, "\033[36mOPTIONS requested for room '%s' (%slogged in)\033[0m",
+               ChrPtr(WC->CurRoom.name),
+               ((WC->logged_in) ? "" : "not ")
+       );
+       hprintf("HTTP/1.1 200 OK\r\n");
+       dav_common_headers();
+       hprintf("Date: %s\r\n", datestring);
+
+       /*
+        * Offer CalDAV (RFC 4791) if this is a calendar room
+        */
+       if ( (WC->CurRoom.view == VIEW_CALENDAR) || (WC->CurRoom.view == VIEW_CALBRIEF) ) {
+               hprintf("DAV: 1, calendar-access\r\n");
+               syslog(LOG_DEBUG, "\033[36mDAV: 1, calendar-access\033[0m");
+       }
+       else {
+               hprintf("DAV: 1\r\n");
+               syslog(LOG_DEBUG, "\033[36mDAV: 1\033[0m");
+       }
+
+       hprintf("Allow: OPTIONS, PROPFIND, GET, PUT, REPORT\r\n");
+       begin_burst();
+       end_burst();
+}