webcit/groupdav_options.c

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