* merge from dav_rework:
[citadel.git] / webcit / groupdav_main.c
index ca31fe21e4dd9ae63b53781276b68ef5e4b24520..b63a0da500ad70d3d8bcffb1a8e342935cb77720 100644 (file)
@@ -9,6 +9,9 @@
 #include "webserver.h"
 #include "groupdav.h"
 
+extern HashList *HandlerHash;
+
+HashList *DavNamespaces = NULL;
 
 /*
  * Output HTTP headers which are common to all requests.
  *
  */
 void groupdav_common_headers(void) {
-       wprintf(
+       hprintf(
                "Server: %s / %s\r\n"
                "Connection: close\r\n",
-               SERVER, serv_info.serv_software
+               PACKAGE_STRING, ChrPtr(WC->serv_info->serv_software)
        );
 }
 
@@ -31,18 +34,19 @@ void groupdav_common_headers(void) {
 /*
  * string conversion function
  */
-void euid_escapize(char *target, char *source) {
-       int i;
+void euid_escapize(char *target, const char *source) {
+       int i, len;
        int target_length = 0;
 
        strcpy(target, "");
-       for (i=0; i<strlen(source); ++i) {
+       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", source[i]);
+                       sprintf(&target[target_length], "=%02X", (0xFF & source[i]));
                        target_length += 3;
                }
        }
@@ -51,20 +55,21 @@ void euid_escapize(char *target, char *source) {
 /*
  * string conversion function
  */
-void euid_unescapize(char *target, char *source) {
-       int a, b;
+void euid_unescapize(char *target, const char *source) {
+       int a, b, len;
        char hex[3];
        int target_length = 0;
 
        strcpy(target, "");
 
-       for (a = 0; a < strlen(source); ++a) {
+       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;
-                       sscanf(hex, "%02x", &b);
+                       b = decode_hex(hex);
                        target[target_length] = b;
                        target[++target_length] = 0;
                        a += 2;
@@ -82,155 +87,89 @@ void euid_unescapize(char *target, char *source) {
 /*
  * Main entry point for GroupDAV requests
  */
-void groupdav_main(struct httprequest *req,
-                       char *dav_content_type,
-                       int dav_content_length,
-                       char *dav_content
-) {
-       struct httprequest *rptr;
-       char dav_method[256];
-       char dav_pathname[256];
-       char dav_ifmatch[256];
-       int dav_depth;
-       char *ds;
-       int i;
-
-       strcpy(dav_method, "");
-       strcpy(dav_pathname, "");
-       strcpy(dav_ifmatch, "");
-       dav_depth = 0;
-
-       for (rptr=req; rptr!=NULL; rptr=rptr->next) {
-               if (!strncasecmp(rptr->line, "Host: ", 6)) {
-                       if (strlen(WC->http_host) == 0) {
-                               safestrncpy(WC->http_host, &rptr->line[6],
-                                       sizeof WC->http_host);
-                       }
-                }
-               if (!strncasecmp(rptr->line, "If-Match: ", 10)) {
-                        safestrncpy(dav_ifmatch, &rptr->line[10],
-                               sizeof dav_ifmatch);
-                }
-               if (!strncasecmp(rptr->line, "Depth: ", 7)) {
-                       if (!strcasecmp(&rptr->line[7], "infinity")) {
-                               dav_depth = 32767;
-                       }
-                       else if (!strcmp(&rptr->line[7], "0")) {
-                               dav_depth = 0;
-                       }
-                       else if (!strcmp(&rptr->line[7], "1")) {
-                               dav_depth = 1;
-                       }
-                }
-       }
+void groupdav_main(void)
+{
+       wcsession *WCC = WC;
+       int i, len;
 
-       if (!WC->logged_in) {
-               wprintf("HTTP/1.1 401 Unauthorized\r\n");
-               groupdav_common_headers();
-               wprintf("WWW-Authenticate: Basic realm=\"%s\"\r\n",
-                       serv_info.serv_humannode);
-               wprintf("Content-Length: 0\r\n\r\n");
-               return;
-       }
+       StrBufUnescape(WCC->Hdr->HR.ReqLine, 0);
 
-       extract_token(dav_method, req->line, 0, ' ', sizeof dav_method);
-       extract_token(dav_pathname, req->line, 1, ' ', sizeof dav_pathname);
-       unescape_input(dav_pathname);
-
-       /* If the request does not begin with "/groupdav", prepend it.  If
-        * we happen to introduce a double-slash, that's ok; we'll strip it
-        * in the next step.
-        * 
-        * (THIS IS DISABLED BECAUSE WE ARE NOW TRYING TO DO REAL DAV.)
-        *
-       if (strncasecmp(dav_pathname, "/groupdav", 9)) {
-               char buf[512];
-               snprintf(buf, sizeof buf, "/groupdav/%s", dav_pathname);
-               safestrncpy(dav_pathname, buf, sizeof dav_pathname);
-       }
-        *
-        */
-       
-       /* Remove any stray double-slashes in pathname */
-       while (ds=strstr(dav_pathname, "//"), ds != NULL) {
-               strcpy(ds, ds+1);
-       }
+       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.
         */
-       if (strlen(dav_ifmatch) > 0) {
-               striplt(dav_ifmatch);
-               if (dav_ifmatch[0] == '\"') {
-                       strcpy(dav_ifmatch, &dav_ifmatch[1]);
-                       for (i=0; i<strlen(dav_ifmatch); ++i) {
-                               if (dav_ifmatch[i] == '\"') {
-                                       dav_ifmatch[i] = 0;
+       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(dav_ifmatch, "*")) {
-                       strcpy(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.
         */
-       if (!strcasecmp(dav_method, "OPTIONS")) {
-               groupdav_options(dav_pathname);
-               return;
-       }
+       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.
         */
-       if (!strcasecmp(dav_method, "PROPFIND")) {
-               groupdav_propfind(dav_pathname, dav_depth,
-                               dav_content_type, dav_content);
-               return;
-       }
+       case ePROPFIND:
+               groupdav_propfind();
+               break;
 
        /*
         * The GET method is used for fetching individual items.
         */
-       if (!strcasecmp(dav_method, "GET")) {
-               groupdav_get(dav_pathname);
-               return;
-       }
-
+       case eGET:
+               groupdav_get();
+               break;
+       
        /*
         * The PUT method is used to add or modify items.
         */
-       if (!strcasecmp(dav_method, "PUT")) {
-               groupdav_put(dav_pathname, dav_ifmatch,
-                               dav_content_type, dav_content,
-                               dav_content_length);
-               return;
-       }
-
+       case ePUT:
+               groupdav_put();
+               break;
+       
        /*
         * The DELETE method kills, maims, and destroys.
         */
-       if (!strcasecmp(dav_method, "DELETE")) {
-               groupdav_delete(dav_pathname, dav_ifmatch);
-               return;
-       }
+       case eDELETE:
+               groupdav_delete();
+               break;
+       default:
 
        /*
         * Couldn't find what we were looking for.  Die in a car fire.
         */
-       wprintf("HTTP/1.1 501 Method not implemented\r\n");
-       groupdav_common_headers();
-       wprintf("Content-Type: text/plain\r\n"
-               "\r\n"
-               "GroupDAV method \"%s\" is not implemented.\r\n",
-               dav_method
-       );
+               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();
+       }
 }
 
 
@@ -238,9 +177,152 @@ void groupdav_main(struct httprequest *req,
  * Output our host prefix for globally absolute URL's.
  */  
 void groupdav_identify_host(void) {
-       if (strlen(WC->http_host) > 0) {
-               wprintf("%s://%s",
+       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));
+       }
+}
+
+
+void tmplput_GROUPDAV_HOSTNAME(StrBuf *Target, WCTemplputParams *TP) 
+{
+       wcsession *WCC = WC;
+
+       if (StrLength(WCC->Hdr->HR.http_host)!=0) {
+               StrBufAppendPrintf(Target, 
+                                  "%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"),
-                       WC->http_host);
+                       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;
        }
 }
+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, 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);
+       /* 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;
+       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;
+               StrBufAppendTemplate(Target, TP, H->Name, 0);
+       }
+       else if (WCC->Hdr->HR.Handler != NULL) {
+               StrBufAppendTemplate(Target, TP, WCC->Hdr->HR.Handler->Name, 0);
+       }
+}
+
+void
+ServerStartModule_DAV
+(void)
+{
+
+       DavNamespaces = NewHash(1, NULL);
+
+}
+
+void 
+ServerShutdownModule_DAV
+(void)
+{
+       DeleteHash(&DavNamespaces);
+}
+
+
+
+
+void 
+InitModule_GROUPDAV
+(void)
+{
+//     WebcitAddUrlHandler(HKEY("groupdav"), "", 0, groupdav_main, XHTTP_COMMANDS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
+       RegisterDAVNamespace(HKEY("groupdav"), HKEY("GroupDAV"), groupdav_main, XHTTP_COMMANDS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
+
+       RegisterNamespace("DAV:HOSTNAME", 0, 0, tmplput_GROUPDAV_HOSTNAME, NULL, CTX_NONE);
+
+       RegisterConditional(HKEY("COND:DAV:NS"), 0, Conditional_DAV_NS,  CTX_NONE);
+
+       RegisterIterator("DAV:NS", 0, DavNamespaces, NULL, 
+                        NULL, NULL, CTX_DAVNS, CTX_NONE, IT_NOFLAG);
+
+
+       RegisterConditional(HKEY("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(HKEY("COND:DAV:DEPTH"), 1, Conditional_DAV_DEPTH,  CTX_NONE);
+
+}