+/*
+ * $Id$
+ *
+ * Handles GroupDAV DELETE requests.
+ *
+ */
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/socket.h>
+#include <limits.h>
+#include <string.h>
+#include <pwd.h>
+#include <errno.h>
+#include <stdarg.h>
+#include <time.h>
+#include <pthread.h>
+#include "webcit.h"
+#include "webserver.h"
+#include "groupdav.h"
+
+
+/*
+ * The pathname is always going to be /groupdav/room_name/euid
+ */
+void groupdav_delete(char *dav_pathname, char *dav_ifmatch) {
+ char dav_roomname[SIZ];
+ char dav_uid[SIZ];
+ long dav_msgnum = (-1);
+ char buf[SIZ];
+ int found_content_type = 0;
+ int n = 0;
+
+ /* First, break off the "/groupdav/" prefix */
+ remove_token(dav_pathname, 0, '/');
+ remove_token(dav_pathname, 0, '/');
+
+ /* Now extract the message euid */
+ n = num_tokens(dav_pathname, '/');
+ extract_token(dav_uid, dav_pathname, n-1, '/');
+ remove_token(dav_pathname, n-1, '/');
+
+ /* What's left is the room name. Remove trailing slashes. */
+ if (dav_pathname[strlen(dav_pathname)-1] == '/') {
+ dav_pathname[strlen(dav_pathname)-1] = 0;
+ }
+ strcpy(dav_roomname, dav_pathname);
+
+ /* Go to the correct room. */
+ if (strcasecmp(WC->wc_roomname, dav_roomname)) {
+ gotoroom(dav_roomname);
+ }
+ if (strcasecmp(WC->wc_roomname, dav_roomname)) {
+ wprintf("HTTP/1.1 404 not found\n");
+ groupdav_common_headers();
+ wprintf("Content-Length: 0\n\n");
+ return;
+ }
+
+ dav_msgnum = locate_message_by_uid(dav_uid);
+
+ /*
+ * If no item exists with the requested uid ... simple error.
+ */
+ if (dav_msgnum < 0L) {
+ wprintf("HTTP/1.1 404 Not Found\n");
+ groupdav_common_headers();
+ wprintf("Content-Length: 0\n\n");
+ return;
+ }
+
+ /*
+ * It's there ... check the ETag and make sure it matches
+ * the message number.
+ */
+ if (strlen(dav_ifmatch) > 0) {
+ if (atol(dav_ifmatch) != dav_msgnum) {
+ wprintf("HTTP/1.1 412 Precondition Failed\n");
+ groupdav_common_headers();
+ wprintf("Content-Length: 0\n\n");
+ return;
+ }
+ }
+
+ /*
+ * Ok, attempt to delete the item.
+ */
+ serv_printf("DELE %ld", dav_msgnum);
+ serv_gets(buf);
+ if (buf[0] == '2') {
+ wprintf("HTTP/1.1 204 No Content\n"); /* success */
+ groupdav_common_headers();
+ wprintf("Content-Length: 0\n\n");
+ }
+ else {
+ wprintf("HTTP/1.1 403 Forbidden\n"); /* access denied */
+ groupdav_common_headers();
+ wprintf("Content-Length: 0\n\n");
+ }
+ return;
+}