webcit/groupdav_options.c

   1 /*
   2  * $Id$
   3  *
   4  * Handles DAV OPTIONS requests (experimental -- not required by GroupDAV)
   5  *
   6  */
   7
   8 #include "webcit.h"
   9 #include "webserver.h"
  10 #include "groupdav.h"
  11
  12 /*
  13  * The pathname is always going to be /groupdav/room_name/msg_num
  14  */
  15 void groupdav_options(const char *dav_pathname) {
  16         char dav_roomname[256];
  17         char dav_uid[256];
  18         long dav_msgnum = (-1);
  19         char datestring[256];
  20         time_t now;
  21
  22         now = time(NULL);
  23         http_datestring(datestring, sizeof datestring, now);
  24
  25         extract_token(dav_roomname, dav_pathname, 2, '/', sizeof dav_roomname);
  26         extract_token(dav_uid, dav_pathname, 3, '/', sizeof dav_uid);
  27
  28         /*
  29          * If the room name is blank, the client is doing a top-level OPTIONS.
  30          */
  31         if (IsEmptyStr(dav_roomname)) {
  32                 hprintf("HTTP/1.1 200 OK\r\n");
  33                 groupdav_common_headers();
  34                 hprintf("Date: %s\r\n", datestring);
  35                 hprintf("DAV: 1\r\n");
  36                 hprintf("Allow: OPTIONS, PROPFIND\r\n");
  37                 hprintf("\r\n");
  38                 begin_burst();
  39                 end_burst();
  40                 return;
  41         }
  42
  43         /* Go to the correct room. */
  44         if (strcasecmp(WC->wc_roomname, dav_roomname)) {
  45                 gotoroom(dav_roomname);
  46         }
  47
  48         if (strcasecmp(WC->wc_roomname, dav_roomname)) {
  49                 hprintf("HTTP/1.1 404 not found\r\n");
  50                 groupdav_common_headers();
  51                 hprintf("Date: %s\r\n", datestring);
  52                 hprintf(
  53                         "Content-Type: text/plain\r\n"
  54                         "\r\n"
  55                         "There is no folder called \"%s\" on this server.\r\n",
  56                         dav_roomname
  57                 );
  58                 begin_burst();
  59                 end_burst();
  60                 return;
  61         }
  62
  63         /* If dav_uid is non-empty, client is requesting an OPTIONS on
  64          * a specific item in the room.
  65          */
  66         if (!IsEmptyStr(dav_uid)) {
  67
  68                 dav_msgnum = locate_message_by_uid(dav_uid);
  69                 if (dav_msgnum < 0) {
  70                         hprintf("HTTP/1.1 404 not found\r\n");
  71                         groupdav_common_headers();
  72                         hprintf(
  73                                 "Content-Type: text/plain\r\n"
  74                                 "\r\n"
  75                                 "Object \"%s\" was not found in the \"%s\" folder.\r\n",
  76                                 dav_uid,
  77                                 dav_roomname
  78                         );
  79                         begin_burst();end_burst();return;
  80                 }
  81
  82                 hprintf("HTTP/1.1 200 OK\r\n");
  83                 groupdav_common_headers();
  84                 hprintf("Date: %s\r\n", datestring);
  85                 hprintf("DAV: 1\r\n");
  86                 hprintf("Allow: OPTIONS, PROPFIND, GET, PUT, DELETE\r\n");
  87                 hprintf("\r\n");
  88                 begin_burst();
  89                 end_burst();
  90                 return;
  91         }
  92
  93         /*
  94          * We got to this point, which means that the client is requesting
  95          * an OPTIONS on the room itself.
  96          */
  97         hprintf("HTTP/1.1 200 OK\r\n");
  98         groupdav_common_headers();
  99         hprintf("Date: %s\r\n", datestring);
 100         hprintf("DAV: 1\r\n");
 101         hprintf("Allow: OPTIONS, PROPFIND, GET, PUT\r\n");
 102         hprintf("\r\n");
 103         begin_burst();
 104         end_burst();
 105 }