--- /dev/null
+/*
+ * Handles GroupDAV PUT requests.
+ *
+ * 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"
+
+
+/*
+ * This function is for uploading an ENTIRE calendar, not just one
+ * component. This would be for webcal:// 'publish' operations, not
+ * for GroupDAV.
+ */
+void dav_put_bigics(void)
+{
+ wcsession *WCC = WC;
+ char buf[1024];
+
+ /*
+ * Tell the server that when we save a calendar event, we
+ * do *not* want the server to generate invitations.
+ */
+ serv_puts("ICAL sgi|0");
+ serv_getln(buf, sizeof buf);
+
+ serv_puts("ICAL putics");
+ serv_getln(buf, sizeof buf);
+ if (buf[0] != '4') {
+ hprintf("HTTP/1.1 502 Bad Gateway\r\n");
+ dav_common_headers();
+ hprintf("Content-type: text/plain\r\n");
+ begin_burst();
+ wc_printf("%s\r\n", &buf[4]);
+ end_burst();
+ return;
+ }
+
+ serv_putbuf(WCC->upload);
+ serv_printf("\n000");
+
+ /* Report success and not much else. */
+ hprintf("HTTP/1.1 204 No Content\r\n");
+ syslog(LOG_DEBUG, "HTTP/1.1 204 No Content\r\n");
+ dav_common_headers();
+ begin_burst();
+ end_burst();
+}
+
+
+
+/*
+ * The pathname is always going to take one of two formats:
+ * [/groupdav/]room_name/euid (GroupDAV)
+ * [/groupdav/]room_name (webcal)
+ */
+void dav_put(void)
+{
+ wcsession *WCC = WC;
+ StrBuf *dav_roomname;
+ StrBuf *dav_uid;
+ long new_msgnum = (-2L);
+ long old_msgnum = (-1L);
+ char buf[SIZ];
+ int n = 0;
+
+ if (StrBufNum_tokens(WCC->Hdr->HR.ReqLine, '/') < 2) {
+ hprintf("HTTP/1.1 404 not found\r\n");
+ dav_common_headers();
+ hprintf("Content-Type: text/plain\r\n");
+ begin_burst();
+ wc_printf("The object you requested was not found.\r\n");
+ end_burst();
+ return;
+ }
+
+ dav_roomname = NewStrBuf();;
+ dav_uid = NewStrBuf();;
+ StrBufExtract_token(dav_roomname, WCC->Hdr->HR.ReqLine, 0, '/');
+ StrBufExtract_token(dav_uid, WCC->Hdr->HR.ReqLine, 1, '/');
+ if ((!strcasecmp(ChrPtr(dav_uid), "ics")) ||
+ (!strcasecmp(ChrPtr(dav_uid), "calendar.ics"))) {
+ FlushStrBuf(dav_uid);
+ }
+
+ /* 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))) {
+ hprintf("HTTP/1.1 404 not found\r\n");
+ dav_common_headers();
+ 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 an HTTP If-Match: header is present, the client is attempting
+ * to replace an existing item. We have to check to see if the
+ * message number associated with the supplied uid matches what the
+ * client is expecting. If not, the server probably contains a newer
+ * version, so we fail...
+ */
+ if (StrLength(WCC->Hdr->HR.dav_ifmatch) > 0) {
+ syslog(LOG_DEBUG, "dav_ifmatch: %s\n", ChrPtr(WCC->Hdr->HR.dav_ifmatch));
+ old_msgnum = locate_message_by_uid(ChrPtr(dav_uid));
+ syslog(LOG_DEBUG, "old_msgnum: %ld\n", old_msgnum);
+ if (StrTol(WCC->Hdr->HR.dav_ifmatch) != old_msgnum) {
+ hprintf("HTTP/1.1 412 Precondition Failed\r\n");
+ syslog(LOG_INFO, "HTTP/1.1 412 Precondition Failed (ifmatch=%ld, old_msgnum=%ld)\r\n",
+ StrTol(WCC->Hdr->HR.dav_ifmatch), old_msgnum);
+ dav_common_headers();
+
+ end_burst();
+ FreeStrBuf(&dav_roomname);
+ FreeStrBuf(&dav_uid);
+ return;
+ }
+ }
+
+ /** PUT on the collection itself uploads an ICS of the entire collection.
+ */
+ if (StrLength(dav_uid) == 0) {
+ dav_put_bigics();
+ FreeStrBuf(&dav_roomname);
+ FreeStrBuf(&dav_uid);
+ return;
+ }
+
+ /*
+ * We are cleared for upload! We use the new calling syntax for ENT0
+ * which allows a confirmation to be sent back to us. That's how we
+ * extract the message ID.
+ */
+ serv_puts("ENT0 1|||4|||1|");
+ serv_getln(buf, sizeof buf);
+ if (buf[0] != '8') {
+ hprintf("HTTP/1.1 502 Bad Gateway\r\n");
+ dav_common_headers();
+ hprintf("Content-type: text/plain\r\n");
+ begin_burst();
+ wc_printf("%s\r\n", &buf[4]);
+ end_burst();
+ return;
+ }
+
+ /* Send the content to the Citadel server */
+ //serv_printf("Content-type: %s\n\n", WCC->upload_content_type);
+ serv_putbuf(WCC->upload);
+ serv_puts("\n000");
+
+ /* Fetch the reply from the Citadel server */
+ n = 0;
+ FlushStrBuf(dav_uid);
+ while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
+ switch(n++) {
+ case 0:
+ new_msgnum = atol(buf);
+ break;
+ case 1:
+ syslog(LOG_DEBUG, "new_msgnum=%ld (%s)\n", new_msgnum, buf);
+ break;
+ case 2:
+ StrBufAppendBufPlain(dav_uid, buf, -1, 0);
+ break;
+ default:
+ break;
+ }
+ }
+
+ /* Tell the client what happened. */
+
+ /* Citadel failed in some way? */
+ if (new_msgnum < 0L) {
+ hprintf("HTTP/1.1 502 Bad Gateway\r\n");
+ dav_common_headers();
+ hprintf("Content-type: text/plain\r\n");
+ begin_burst();
+ wc_printf("new_msgnum is %ld\r\n"
+ "\r\n", new_msgnum);
+ end_burst();
+ FreeStrBuf(&dav_roomname);
+ FreeStrBuf(&dav_uid);
+ return;
+ }
+
+ /* We created this item for the first time. */
+ if (old_msgnum < 0L) {
+ char escaped_uid[1024];
+ hprintf("HTTP/1.1 201 Created\r\n");
+ syslog(LOG_DEBUG, "HTTP/1.1 201 Created\r\n");
+ dav_common_headers();
+ hprintf("etag: \"%ld\"\r\n", new_msgnum);
+ hprintf("Location: ");
+ dav_identify_hosthdr();
+ hprintf("/groupdav/");/* TODO */
+ hurlescputs(ChrPtr(dav_roomname));
+ euid_escapize(escaped_uid, ChrPtr(dav_uid));
+ hprintf("/%s\r\n", escaped_uid);
+ end_burst();
+ FreeStrBuf(&dav_roomname);
+ FreeStrBuf(&dav_uid);
+ return;
+ }
+
+ /* We modified an existing item. */
+ hprintf("HTTP/1.1 204 No Content\r\n");
+ syslog(LOG_DEBUG, "HTTP/1.1 204 No Content\r\n");
+ dav_common_headers();
+ hprintf("Etag: \"%ld\"\r\n", new_msgnum);
+ /* The item we replaced has probably already been deleted by
+ * the Citadel server, but we'll do this anyway, just in case.
+ */
+ serv_printf("DELE %ld", old_msgnum);
+ serv_getln(buf, sizeof buf);
+ begin_burst();
+ end_burst();
+ FreeStrBuf(&dav_roomname);
+ FreeStrBuf(&dav_uid);
+ return;
+}
projects / citadel.git / blobdiff