--- /dev/null
+/*
+ * Handles GroupDAV GET requests.
+ *
+ * Copyright (c) 2005-2010 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 as
+ * published by the Free Software Foundation; either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "webcit.h"
+#include "webserver.h"
+#include "dav.h"
+
+
+/*
+ * Fetch the entire contents of the room as one big ics file.
+ * This is for "webcal://" type access.
+ */
+void groupdav_get_big_ics(void) {
+ char buf[1024];
+
+ serv_puts("ICAL getics");
+ serv_getln(buf, sizeof buf);
+ if (buf[0] != '1') {
+ hprintf("HTTP/1.1 404 not found\r\n");
+ groupdav_common_headers();
+ hprintf("Content-Type: text/plain\r\n");
+ begin_burst();
+ wc_printf("%s\r\n",
+ &buf[4]
+ );
+ end_burst();
+ return;
+ }
+
+ hprintf("HTTP/1.1 200 OK\r\n");
+ groupdav_common_headers();
+ hprintf("Content-type: text/calendar; charset=UTF-8\r\n");
+ begin_burst();
+ while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
+ wc_printf("%s\r\n", buf);
+ }
+ end_burst();
+}
+
+
+/*
+ * MIME parser callback function for groupdav_get()
+ * Helps identify the relevant section of a multipart message
+ */
+void extract_preferred(char *name, char *filename, char *partnum, char *disp,
+ void *content, char *cbtype, char *cbcharset,
+ size_t length, char *encoding, char *cbid, void *userdata)
+{
+ struct epdata *epdata = (struct epdata *)userdata;
+ int hit = 0;
+
+ /* We only want the first one that we found */
+ if (!IsEmptyStr(epdata->found_section)) return;
+
+ /* Check for a content type match */
+ if (strlen(epdata->desired_content_type_1) > 0) {
+ if (!strcasecmp(epdata->desired_content_type_1, cbtype)) {
+ hit = 1;
+ }
+ }
+ if (!IsEmptyStr(epdata->desired_content_type_2)) {
+ if (!strcasecmp(epdata->desired_content_type_2, cbtype)) {
+ hit = 1;
+ }
+ }
+
+ /* Is this the one? If so, output it. */
+ if (hit) {
+ safestrncpy(epdata->found_section, partnum, sizeof epdata->found_section);
+ if (!IsEmptyStr(cbcharset)) {
+ safestrncpy(epdata->charset, cbcharset, sizeof epdata->charset);
+ }
+ hprintf("Content-type: %s; charset=%s\r\n", cbtype, epdata->charset);
+ begin_burst();
+ StrBufAppendBufPlain(WC->WBuf, content, length, 0);
+ end_burst();
+ }
+}
+
+
+
+/*
+ * The pathname is always going to take one of two formats:
+ * /groupdav/room_name/euid (GroupDAV)
+ * /groupdav/room_name (webcal)
+ */
+void groupdav_get(void)
+{
+ wcsession *WCC = WC;
+ StrBuf *dav_roomname;
+ StrBuf *dav_uid;
+ long dav_msgnum = (-1);
+ char buf[1024];
+ int in_body = 0;
+ char *ptr;
+ char *endptr;
+ char *msgtext = NULL;
+ size_t msglen = 0;
+ size_t msgalloc = 0;
+ int linelen;
+ char content_type[128];
+ char charset[128];
+ char date[128];
+ struct epdata epdata;
+
+ if (StrBufNum_tokens(WCC->Hdr->HR.ReqLine, '/') < 2) {
+ hprintf("HTTP/1.1 404 not found\r\n");
+ groupdav_common_headers();
+ hprintf("Content-Type: text/plain\r\n");
+ 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(WCC->CurRoom.name), ChrPtr(dav_roomname))) {
+ gotoroom(dav_roomname);
+ }
+ if (strcasecmp(ChrPtr(WCC->CurRoom.name), ChrPtr(dav_roomname))) {
+ hprintf("HTTP/1.1 404 not found\r\n");
+ groupdav_common_headers();
+ hprintf("Content-Type: text/plain\r\n");
+ 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;
+ }
+
+ /** GET on the collection itself returns an ICS of the entire collection.
+ */
+ if (StrLength(dav_uid) == 0) {
+ groupdav_get_big_ics();
+ FreeStrBuf(&dav_roomname);
+ FreeStrBuf(&dav_uid);
+ return;
+ }
+
+ dav_msgnum = locate_message_by_uid(ChrPtr(dav_uid));
+ serv_printf("MSG2 %ld", dav_msgnum);
+ serv_getln(buf, sizeof buf);
+ if (buf[0] != '1') {
+ hprintf("HTTP/1.1 404 not found\r\n");
+ groupdav_common_headers();
+ hprintf("Content-Type: text/plain\r\n");
+ wc_printf("Object \"%s\" was not found in the \"%s\" folder.\r\n",
+ ChrPtr(dav_uid),
+ ChrPtr(dav_roomname));
+ end_burst();
+ FreeStrBuf(&dav_roomname);
+ FreeStrBuf(&dav_uid);
+ return;
+ }
+ FreeStrBuf(&dav_roomname);
+ FreeStrBuf(&dav_uid);
+
+ /* We got it; a message is now arriving from the server. Read it in. */
+
+ in_body = 0;
+ strcpy(charset, "UTF-8");
+ strcpy(content_type, "text/plain");
+ strcpy(date, "");
+ while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
+ linelen = strlen(buf);
+
+ /* Append it to the buffer */
+ if ((msglen + linelen + 3) > msgalloc) {
+ msgalloc = ( (msgalloc > 0) ? (msgalloc * 2) : 1024 );
+ msgtext = realloc(msgtext, msgalloc);
+ }
+ strcpy(&msgtext[msglen], buf);
+ msglen += linelen;
+ strcpy(&msgtext[msglen], "\n");
+ msglen += 1;
+
+ /* Also learn some things about the message */
+ if (linelen == 0) {
+ in_body = 1;
+ }
+ if (!in_body) {
+ if (!strncasecmp(buf, "Date:", 5)) {
+ safestrncpy(date, &buf[5], sizeof date);
+ striplt(date);
+ }
+ if (!strncasecmp(buf, "Content-type:", 13)) {
+ safestrncpy(content_type, &buf[13], sizeof content_type);
+ striplt(content_type);
+ ptr = bmstrcasestr(&buf[13], "charset=");
+ if (ptr) {
+ safestrncpy(charset, ptr+8, sizeof charset);
+ striplt(charset);
+ endptr = strchr(charset, ';');
+ if (endptr != NULL) strcpy(endptr, "");
+ }
+ endptr = strchr(content_type, ';');
+ if (endptr != NULL) strcpy(endptr, "");
+ }
+ }
+ }
+ msgtext[msglen] = 0;
+
+ /* Output headers common to single or multi part messages */
+
+ hprintf("HTTP/1.1 200 OK\r\n");
+ groupdav_common_headers();
+ hprintf("etag: \"%ld\"\r\n", dav_msgnum);
+ hprintf("Date: %s\r\n", date);
+
+ memset(&epdata, 0, sizeof(struct epdata));
+ safestrncpy(epdata.charset, charset, sizeof epdata.charset);
+
+ /* If we have a multipart message on our hands, and we are in a groupware room,
+ * strip it down to only the relevant part.
+ */
+ if (!strncasecmp(content_type, "multipart/", 10)) {
+
+ if ( (WCC->CurRoom.defview == VIEW_CALENDAR) || (WCC->CurRoom.defview == VIEW_TASKS) ) {
+ strcpy(epdata.desired_content_type_1, "text/calendar");
+ }
+
+ else if (WCC->CurRoom.defview == VIEW_ADDRESSBOOK) {
+ strcpy(epdata.desired_content_type_1, "text/vcard");
+ strcpy(epdata.desired_content_type_2, "text/x-vcard");
+ }
+
+ mime_parser(msgtext, &msgtext[msglen], extract_preferred, NULL, NULL, (void *)&epdata, 0);
+ }
+
+ /* If epdata.found_section is empty, we haven't output anything yet, so output the whole thing */
+
+ if (IsEmptyStr(epdata.found_section)) {
+ ptr = msgtext;
+ endptr = &msgtext[msglen];
+
+ hprintf("Content-type: %s; charset=%s\r\n", content_type, charset);
+
+ in_body = 0;
+ do {
+ ptr = memreadline(ptr, buf, sizeof buf);
+
+ if (in_body) {
+ wc_printf("%s\r\n", buf);
+ }
+ else if ((buf[0] == 0) && (in_body == 0)) {
+ in_body = 1;
+ begin_burst();
+ }
+ } while (ptr < endptr);
+
+ end_burst();
+ }
+
+ free(msgtext);
+}
projects / citadel.git / blobdiff