*
*/
-#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 "webcit.h"
#include "webserver.h"
+#include "groupdav.h"
-void groupdav_main(char *cmd) {
- if (!WC->logged_in) {
- wprintf(
- "HTTP/1.1 401 Authorization Required\n"
- "WWW-Authenticate: Basic realm=\"GroupDAV\"\n"
- "Connection: close\n"
- );
- output_headers(0, 0, 0, 0, 0, 0, 0);
- wprintf("Content-Type: text/plain\n");
- wprintf("\n");
- wprintf("GroupDAV sessions require HTTP authentication.\n");
- wDumpContent(0);
+/*
+ * 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 groupdav_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 groupdav_main(void)
+{
+ wcsession *WCC = WC;
+ int i, len;
+
+ 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. This is an
+ * experiment to determine what might be involved in supporting
+ * other variants of DAV in the future.
+ */
+ case eOPTIONS:
+ groupdav_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:
+ groupdav_propfind();
+ break;
+
+ /*
+ * The GET method is used for fetching individual items.
+ */
+ case eGET:
+ groupdav_get();
+ break;
+
+ /*
+ * The PUT method is used to add or modify items.
+ */
+ case ePUT:
+ groupdav_put();
+ break;
+
+ /*
+ * The DELETE method kills, maims, and destroys.
+ */
+ case eDELETE:
+ groupdav_delete();
+ 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");
+ groupdav_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 groupdav_identify_host(void) {
+ wcsession *WCC = WC;
+
+ if (StrLength(WCC->Hdr->HR.http_host)!=0) {
+ wc_printf("%s://%s",
+ (is_https ? "https" : "http"),
+ ChrPtr(WCC->Hdr->HR.http_host));
+ }
+}
+
+/*
+ * Output our host prefix for globally absolute URL's.
+ */
+void groupdav_identify_hosthdr(void) {
+ wcsession *WCC = WC;
+
+ if (StrLength(WCC->Hdr->HR.http_host)!=0) {
+ hprintf("%s://%s",
+ (is_https ? "https" : "http"),
+ ChrPtr(WCC->Hdr->HR.http_host));
+ }
+}
+
+
+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;
+ }
+}
+
+void
+InitModule_GROUPDAV
+(void)
+{
+ WebcitAddUrlHandler(HKEY("groupdav"), "", 0, groupdav_main, XHTTP_COMMANDS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
+ RegisterHeaderHandler(HKEY("IF-MATCH"), Header_HandleIfMatch);
+ RegisterHeaderHandler(HKEY("DEPTH"), Header_HandleDepth);
- output_static("smiley.gif"); /* FIXME */
}
projects / citadel.git / blobdiff