--- /dev/null
+/*
+ * Entry point for GroupDAV functions
+ *
+ * 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"
+
+CtxType CTX_DAVNS = CTX_NONE;
+extern HashList *HandlerHash;
+
+HashList *DavNamespaces = NULL;
+
+/*
+ * Output HTTP headers which are common to all requests.
+ *
+ * Please observe that we don't use the usual output_headers()
+ * and wDumpContent() functions in the GroupDAV subsystem, so we
+ * do our own header stuff here.
+ *
+ */
+void dav_common_headers(void) {
+ hprintf(
+ "Server: %s / %s\r\n"
+ "Connection: close\r\n",
+ PACKAGE_STRING, ChrPtr(WC->serv_info->serv_software)
+ );
+}
+
+
+
+/*
+ * string conversion function
+ */
+void euid_escapize(char *target, const char *source) {
+ int i, len;
+ int target_length = 0;
+
+ strcpy(target, "");
+ len = strlen(source);
+ for (i=0; i<len; ++i) {
+ if ( (isalnum(source[i])) || (source[i]=='-') || (source[i]=='_') ) {
+ target[target_length] = source[i];
+ target[++target_length] = 0;
+ }
+ else {
+ sprintf(&target[target_length], "=%02X", (0xFF & source[i]));
+ target_length += 3;
+ }
+ }
+}
+
+/*
+ * string conversion function
+ */
+void euid_unescapize(char *target, const char *source) {
+ int a, b, len;
+ char hex[3];
+ int target_length = 0;
+
+ strcpy(target, "");
+
+ len = strlen(source);
+ for (a = 0; a < len; ++a) {
+ if (source[a] == '=') {
+ hex[0] = source[a + 1];
+ hex[1] = source[a + 2];
+ hex[2] = 0;
+ b = 0;
+ b = decode_hex(hex);
+ target[target_length] = b;
+ target[++target_length] = 0;
+ a += 2;
+ }
+ else {
+ target[target_length] = source[a];
+ target[++target_length] = 0;
+ }
+ }
+}
+
+
+
+
+/*
+ * Main entry point for GroupDAV requests
+ */
+void dav_main(void)
+{
+ wcsession *WCC = WC;
+ int i, len;
+
+ syslog(LOG_DEBUG, "dav_main() called, logged_in=%d", WCC->logged_in );
+
+ StrBufUnescape(WCC->Hdr->HR.ReqLine, 0);
+ StrBufStripSlashes(WCC->Hdr->HR.ReqLine, 0);
+
+ /*
+ * If there's an If-Match: header, strip out the quotes if present, and
+ * then if all that's left is an asterisk, make it go away entirely.
+ */
+ len = StrLength(WCC->Hdr->HR.dav_ifmatch);
+ if (len > 0) {
+ StrBufTrim(WCC->Hdr->HR.dav_ifmatch);
+ if (ChrPtr(WCC->Hdr->HR.dav_ifmatch)[0] == '\"') {
+ StrBufCutLeft(WCC->Hdr->HR.dav_ifmatch, 1);
+ len --;
+ for (i=0; i<len; ++i) {
+ if (ChrPtr(WCC->Hdr->HR.dav_ifmatch)[i] == '\"') {
+ StrBufCutAt(WCC->Hdr->HR.dav_ifmatch, i, NULL);
+ len = StrLength(WCC->Hdr->HR.dav_ifmatch);
+ }
+ }
+ }
+ if (!strcmp(ChrPtr(WCC->Hdr->HR.dav_ifmatch), "*")) {
+ FlushStrBuf(WCC->Hdr->HR.dav_ifmatch);
+ }
+ }
+
+ switch (WCC->Hdr->HR.eReqType)
+ {
+ /*
+ * The OPTIONS method is not required by GroupDAV but it will be
+ * needed for future implementations of other DAV-based protocols.
+ */
+ case eOPTIONS:
+ dav_options();
+ break;
+
+ /*
+ * The PROPFIND method is basically used to list all objects in a
+ * room, or to list all relevant rooms on the server.
+ */
+ case ePROPFIND:
+ dav_propfind();
+ break;
+
+ /*
+ * The GET method is used for fetching individual items.
+ */
+ case eGET:
+ dav_get();
+ break;
+
+ /*
+ * The PUT method is used to add or modify items.
+ */
+ case ePUT:
+ dav_put();
+ break;
+
+ /*
+ * The DELETE method kills, maims, and destroys.
+ */
+ case eDELETE:
+ dav_delete();
+ break;
+
+ /*
+ * The REPORT method tells us that Mike Shaver is a self-righteous asshole.
+ */
+ case eREPORT:
+ dav_report();
+ break;
+
+ default:
+ /*
+ * Couldn't find what we were looking for. Die in a car fire.
+ */
+ hprintf("HTTP/1.1 501 Method not implemented\r\n");
+ dav_common_headers();
+ hprintf("Content-Type: text/plain\r\n");
+ wc_printf("GroupDAV method \"%s\" is not implemented.\r\n",
+ ReqStrs[WCC->Hdr->HR.eReqType]);
+ end_burst();
+ }
+}
+
+
+/*
+ * Output our host prefix for globally absolute URL's.
+ */
+void dav_identify_host(void) {
+ wc_printf("%s", ChrPtr(site_prefix));
+}
+
+
+void tmplput_dav_HOSTNAME(StrBuf *Target, WCTemplputParams *TP)
+{
+ StrBufAppendPrintf(Target, "%s", ChrPtr(site_prefix));
+}
+
+/*
+ * Output our host prefix for globally absolute URL's.
+ */
+void dav_identify_hosthdr(void) {
+ hprintf("%s", ChrPtr(site_prefix));
+}
+
+
+void Header_HandleIfMatch(StrBuf *Line, ParsedHttpHdrs *hdr)
+{
+ hdr->HR.dav_ifmatch = Line;
+}
+
+
+void Header_HandleDepth(StrBuf *Line, ParsedHttpHdrs *hdr)
+{
+ if (!strcasecmp(ChrPtr(Line), "infinity")) {
+ hdr->HR.dav_depth = 32767;
+ }
+ else if (strcmp(ChrPtr(Line), "0") == 0) {
+ hdr->HR.dav_depth = 0;
+ }
+ else if (strcmp(ChrPtr(Line), "1") == 0) {
+ hdr->HR.dav_depth = 1;
+ }
+}
+
+
+int Conditional_DAV_DEPTH(StrBuf *Target, WCTemplputParams *TP)
+{
+ return WC->Hdr->HR.dav_depth == GetTemplateTokenNumber(Target, TP, 2, 0);
+}
+
+
+void RegisterDAVNamespace(const char * UrlString,
+ long UrlSLen,
+ const char *DisplayName,
+ long dslen,
+ WebcitHandlerFunc F,
+ WebcitRESTDispatchID RID,
+ long Flags)
+{
+ void *vHandler;
+
+ /* first put it in... */
+ WebcitAddUrlHandler(UrlString, UrlSLen, DisplayName, dslen, F, Flags|PARSE_REST_URL);
+ /* get it out again... */
+ GetHash(HandlerHash, UrlString, UrlSLen, &vHandler);
+ ((WebcitHandler*)vHandler)->RID = RID;
+ /* and keep a copy of it, so we can compare it later */
+ Put(DavNamespaces, UrlString, UrlSLen, vHandler, reference_free_handler);
+}
+
+
+int Conditional_DAV_NS(StrBuf *Target, WCTemplputParams *TP)
+{
+ wcsession *WCC = WC;
+ void *vHandler;
+ const char *NS;
+ long NSLen;
+
+ GetTemplateTokenString(NULL, TP, 2, &NS, &NSLen);
+ GetHash(HandlerHash, NS, NSLen, &vHandler);
+ return WCC->Hdr->HR.Handler == vHandler;
+}
+
+
+int Conditional_DAV_NSCURRENT(StrBuf *Target, WCTemplputParams *TP)
+{
+ wcsession *WCC = WC;
+ void *vHandler;
+
+ vHandler = CTX(CTX_NONE);
+ return WCC->Hdr->HR.Handler == vHandler;
+}
+
+
+void tmplput_DAV_NAMESPACE(StrBuf *Target, WCTemplputParams *TP)
+{
+ wcsession *WCC = WC;
+
+ if (TP->Filter.ContextType == CTX_DAVNS) {
+ WebcitHandler *H;
+ H = (WebcitHandler*) CTX(CTX_DAVNS);
+ if (H != NULL)
+ StrBufAppendTemplate(Target, TP, H->Name, 0);
+ }
+ else if (WCC->Hdr->HR.Handler != NULL) {
+ StrBufAppendTemplate(Target, TP, WCC->Hdr->HR.Handler->Name, 0);
+ }
+}
+
+
+int GroupdavDispatchREST(RESTDispatchID WhichAction, int IgnoreFloor)
+{
+ wcsession *WCC = WC;
+ void *vDir;
+
+ switch(WhichAction){
+ case ExistsID:
+ GetHash(WCC->Directory, IKEY(WCC->ThisRoom->nRoomNameParts + 1), &vDir);
+ return locate_message_by_uid(ChrPtr((StrBuf*)vDir)) != -1;
+ /* TODO: remember euid */
+ case PutID:
+ case DeleteID:
+ break;
+
+
+ }
+ return 0;
+}
+
+
+void
+ServerStartModule_DAV
+(void)
+{
+
+ DavNamespaces = NewHash(1, NULL);
+}
+
+
+void
+ServerShutdownModule_DAV
+(void)
+{
+ DeleteHash(&DavNamespaces);
+}
+
+
+void
+InitModule_GROUPDAV
+(void)
+{
+ RegisterCTX(CTX_DAVNS);
+ RegisterDAVNamespace(HKEY("groupdav"), HKEY("GroupDAV"),
+ dav_main, GroupdavDispatchREST,
+ XHTTP_COMMANDS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE
+ );
+
+ RegisterNamespace("DAV:HOSTNAME", 0, 0, tmplput_dav_HOSTNAME, NULL, CTX_NONE);
+
+ RegisterConditional("COND:DAV:NS", 0, Conditional_DAV_NS, CTX_NONE);
+
+ RegisterIterator("DAV:NS", 0, DavNamespaces, NULL,
+ NULL, NULL, CTX_DAVNS, CTX_NONE, IT_NOFLAG
+ );
+
+ RegisterConditional("COND:DAV:NSCURRENT", 0, Conditional_DAV_NSCURRENT, CTX_DAVNS);
+ RegisterNamespace("DAV:NAMESPACE", 0, 1, tmplput_DAV_NAMESPACE, NULL, CTX_NONE);
+
+ RegisterHeaderHandler(HKEY("IF-MATCH"), Header_HandleIfMatch);
+ RegisterHeaderHandler(HKEY("DEPTH"), Header_HandleDepth);
+ RegisterConditional("COND:DAV:DEPTH", 1, Conditional_DAV_DEPTH, CTX_NONE);
+}
projects / citadel.git / blobdiff