webcit/groupdav_delete.c

   1 /*
   2  * $Id$
   3  */
   4 /**
   5  * \defgroup GroupdavDel Handle GroupDAV DELETE requests.
   6  * \ingroup WebcitHttpServerGDav
   7  */
   8 /*@{*/
   9 #include "webcit.h"
  10 #include "webserver.h"
  11 #include "groupdav.h"
  12
  13
  14 /**
  15  * \brief The pathname is always going to be /groupdav/room_name/euid
  16  * \param dav_pathname the groupdav pathname
  17  * \param dav_ifmatch item to delete ????
  18  */
  19 void groupdav_delete(char *dav_pathname, char *dav_ifmatch) {
  20         char dav_roomname[SIZ];
  21         char dav_uid[SIZ];
  22         long dav_msgnum = (-1);
  23         char buf[SIZ];
  24         int n = 0;
  25
  26         /** First, break off the "/groupdav/" prefix */
  27         remove_token(dav_pathname, 0, '/');
  28         remove_token(dav_pathname, 0, '/');
  29
  30         /** Now extract the message euid */
  31         n = num_tokens(dav_pathname, '/');
  32         extract_token(dav_uid, dav_pathname, n-1, '/', sizeof dav_uid);
  33         remove_token(dav_pathname, n-1, '/');
  34
  35         /** What's left is the room name.  Remove trailing slashes. */
  36         if (dav_pathname[strlen(dav_pathname)-1] == '/') {
  37                 dav_pathname[strlen(dav_pathname)-1] = 0;
  38         }
  39         strcpy(dav_roomname, dav_pathname);
  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("Content-Length: 0\r\n\r\n");
  49                 return;
  50         }
  51
  52         dav_msgnum = locate_message_by_uid(dav_uid);
  53
  54         /**
  55          * If no item exists with the requested uid ... simple error.
  56          */
  57         if (dav_msgnum < 0L) {
  58                 wprintf("HTTP/1.1 404 Not Found\r\n");
  59                 groupdav_common_headers();
  60                 wprintf("Content-Length: 0\r\n\r\n");
  61                 return;
  62         }
  63
  64         /**
  65          * It's there ... check the ETag and make sure it matches
  66          * the message number.
  67          */
  68         if (strlen(dav_ifmatch) > 0) {
  69                 if (atol(dav_ifmatch) != dav_msgnum) {
  70                         wprintf("HTTP/1.1 412 Precondition Failed\r\n");
  71                         groupdav_common_headers();
  72                         wprintf("Content-Length: 0\r\n\r\n");
  73                         return;
  74                 }
  75         }
  76
  77         /**
  78          * Ok, attempt to delete the item.
  79          */
  80         serv_printf("DELE %ld", dav_msgnum);
  81         serv_getln(buf, sizeof buf);
  82         if (buf[0] == '2') {
  83                 wprintf("HTTP/1.1 204 No Content\r\n"); /* success */
  84                 groupdav_common_headers();
  85                 wprintf("Content-Length: 0\r\n\r\n");
  86         }
  87         else {
  88                 wprintf("HTTP/1.1 403 Forbidden\r\n");  /* access denied */
  89                 groupdav_common_headers();
  90                 wprintf("Content-Length: 0\r\n\r\n");
  91         }
  92         return;
  93 }
  94
  95
  96 /*@}*/