created an nsILDAPConnection interface, and set up nsLDAPConnection to implement it so that we can use XPCOM proxies for cross-thread marshalling, and so we get JS access as well

directory/xpcom/TODO.txt

@@ -1,5 +1,10 @@
 implementation
 --------------
+
+* finish XPCOMifying nsLDAP{Message,Connection,Operation} in order to allow
+  XPCOM proxies to be used for thread-crossing operations (side benefit: also
+  exposes more LDAPy goodness to JS) (in progres: dmose) 
+
 * make AsyncRead actually be asynchronous (and probably cause ldapSearch.cpp 
   to be split and moved) by factoring out the lowlevel stuff into another
   thread (in progress: dmose)
@@ -17,6 +22,13 @@ housecleaning
 
 * implement nsLDAPChannel::Cancel()
 
+* should nsILDAPOperation subclass nsIRequest?  why do some
+  non-nsIChannel things in the mozilla code base implement nsIRequest?
+
+* implement shutdown for nsLDAPService (probably analogous to the way
+  nsSocketTransportService shuts down.  but how does
+  nsIShutdownListener fit in here? and CanUnload?)
+
 * get rid of unixy, non-NSPR/XPCOM includes, functions, and error handling
   from nsLDAP{Connection,Operation,Message}.[ch]
 
@@ -68,9 +80,6 @@ housecleaning
 features
 --------
 
-* finish XPCOMifying nsLDAP{Message,Connection,Operation} (allowing
-  for use from JS)
-
 * i18n / l10n
 
 * use a rebind_proc?

directory/xpcom/base/public/MANIFEST_IDL

@@ -1,2 +1,3 @@
 nsILDAPURI.idl
+nsILDAPConnection.idl
 

directory/xpcom/base/public/Makefile.in

@@ -41,7 +41,8 @@ include $(DEPTH)/config/autoconf.mk
 MODULE		= mozldap
 XPIDL_MODULE	= mozldap
 
-XPIDLSRCS	= nsILDAPURI.idl \
+XPIDLSRCS	= 	nsILDAPConnection.idl \
+	  		nsILDAPURI.idl \
 			$(NULL)
 
 include $(topsrcdir)/config/rules.mk

directory/xpcom/base/public/nsILDAPConnection.idl

@@ -0,0 +1,48 @@
+/* 
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is the mozilla.org LDAP XPCOM component.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 2000 Netscape Communications Corporation.  All
+ * Rights Reserved.
+ * 
+ * Contributor(s): Dan Mosedale <dmose@mozilla.org>
+ * 
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License Version 2 or later (the
+ * "GPL"), in which case the provisions of the GPL are applicable 
+ * instead of those above.  If you wish to allow use of your 
+ * version of this file only under the terms of the GPL and not to
+ * allow others to use your version of this file under the MPL,
+ * indicate your decision by deleting the provisions above and
+ * replace them with the notice and other provisions required by
+ * the GPL.  If you do not delete the provisions above, a recipient
+ * may use your version of this file under either the MPL or the
+ * GPL.
+ */
+
+#include "nsISupports.idl"
+
+[scriptable, uuid(337ad2fe-1dd2-11b2-89f8-aae1221ec86c)]
+interface nsILDAPConnection : nsISupports
+{
+    // return the string version of lderrno
+    readonly attribute string errorString;
+
+    // wrapper for ldap_init()
+    void Init(in string defhost, in short defport);
+  
+    // wrapper for ldap_get_lderrno()
+    short GetLdErrno(out string matched, out string s);
+};
+

directory/xpcom/base/src/ldapSearch.cpp

@@ -50,8 +50,8 @@ lds(class nsLDAPChannel *chan, const char *url)
   // struct timeval timeout = {10,0};
   int returnCode;
   char *errString;
-  // url = "ldap://memberdir.netscape.com:389/ou=member_directory,
-  //        o=netcenter.com??sub?(sn=Mosedale)"
+  PRInt16 lden;
+
   myConnection = new nsLDAPConnection();
   if ( !myConnection->Init("nsdirectory.netscape.com", LDAP_PORT) ) {
     fprintf(stderr, "main: nsLDAPConnection::Init failed\n");
@@ -65,8 +65,8 @@ lds(class nsLDAPChannel *chan, const char *url)
   fflush(stderr);
   
   if ( !myOperation->SimpleBind(NULL, NULL) ) {
-    char *errstring = myConnection->GetErrorString();
-    fprintf(stderr, "ldap_simple_bind: %s\n", errstring);
+    (void)myConnection->GetErrorString(&errString);
+    fprintf(stderr, "ldap_simple_bind: %s\n", errString);
     exit(-1);
   }
 
@@ -87,7 +87,7 @@ lds(class nsLDAPChannel *chan, const char *url)
     // success
     break;
   case -1:
-    errString = myConnection->GetErrorString();
+    (void)myConnection->GetErrorString(&errString);
     fprintf(stderr, 
 	    "myOperation->Result() [myOperation->SimpleBind]: %s: errno=%d\n",
 	    errString, errno);
@@ -137,7 +137,7 @@ lds(class nsLDAPChannel *chan, const char *url)
 
       switch (returnCode) {
       case -1: // something went wrong
-	  errString = myConnection->GetErrorString();
+	  (void)myConnection->GetErrorString(&errString);
 	  fprintf(stderr, 
 		  "\nmyOperation->Result() [URLSearch]: %s: errno=%d\n",
 		  errString, errno);
@@ -152,8 +152,9 @@ lds(class nsLDAPChannel *chan, const char *url)
 	  // get the DN
 	  dn = myMessage->GetDN();
 	  if (!dn) {
-	      fprintf(stderr, "myMessage->GetDN(): %s\n", 
-		      myConnection->GetErrorString());
+	      (void)myConnection->GetErrorString(&errString);
+	      fprintf(stderr, "myMessage->GetDN(): %s\n", errString);
+		     
 	      exit(-1);
 	  }
 	  chan->pipeWrite("dn: ");
@@ -173,8 +174,9 @@ lds(class nsLDAPChannel *chan, const char *url)
 	      // get the values of this attribute
 	      vals = myMessage->GetValues(attr);
 	      if (vals == NULL) {
-		  fprintf(stderr, "myMessage->GetValues: %s\n", 
-			  myConnection->GetErrorString());
+   		  (void)myConnection->GetErrorString(&errString);
+		  fprintf(stderr, "myMessage->GetValues: %s\n", errString); 
+
 		  exit(-1);
 	      }
 
@@ -191,9 +193,13 @@ lds(class nsLDAPChannel *chan, const char *url)
 	  }
 	  
 	  // did we reach this statement because of an error?
-	  if ( myConnection->GetLdErrno(NULL, NULL) != LDAP_SUCCESS ) {
+	  (void)myConnection->GetLdErrno(NULL, NULL, &lden);
+	  if ( lden != LDAP_SUCCESS ) {
+
+	      (void)myConnection->GetErrorString(&errString);
 	      fprintf(stderr, "myMessage: error getting attribute: %s\n", 
-		      myConnection->GetErrorString());	
+		      errString);
+
 	      exit(-1);
 	  }
 

directory/xpcom/base/src/nsLDAPConnection.cpp

@@ -34,10 +34,13 @@
 #include <stdio.h>
 #include "nsLDAPConnection.h"
 
+NS_IMPL_ISUPPORTS1(nsLDAPConnection, nsILDAPConnection);
+
 // constructor
 //
 nsLDAPConnection::nsLDAPConnection()
 {
+  NS_INIT_ISUPPORTS();
 }
 
 // destructor
@@ -56,19 +59,21 @@ nsLDAPConnection::~nsLDAPConnection()
 
 // wrapper for ldap_init()
 //
-bool
-nsLDAPConnection::Init(const char *defhost, const int defport)
+NS_IMETHODIMP
+nsLDAPConnection::Init(const char *defhost, PRInt16 defport)
 {
   this->connectionHandle = ldap_init(defhost, defport);
-  return (this->connectionHandle == NULL ? false : true);
+  return (this->connectionHandle == NULL ? NS_ERROR_FAILURE : NS_OK);
 }
 
 // wrapper for ldap_get_lderrno
 //
-int
-nsLDAPConnection::GetLdErrno(char **matched, char **string)
+NS_IMETHODIMP
+nsLDAPConnection::GetLdErrno(char **matched, char **errString, 
+			     PRInt16 *_retval)
 {
-  return ldap_get_lderrno(this->connectionHandle, matched, string);
+  *_retval = ldap_get_lderrno(this->connectionHandle, matched, errString);
+  return NS_OK;
 }
 
 // return the error string corresponding to GetLdErrno.
@@ -76,8 +81,10 @@ nsLDAPConnection::GetLdErrno(char **matched, char **string)
 //
 // XXX - deal with optional params
 // XXX - how does ldap_perror know to look at the global errno?
-char *
-nsLDAPConnection::GetErrorString(void)
+NS_IMETHODIMP
+nsLDAPConnection::GetErrorString(char **_retval)
 {
-  return ldap_err2string(this->GetLdErrno(NULL, NULL));
+  *_retval = ldap_err2string(ldap_get_lderrno(this->connectionHandle, 
+					      NULL, NULL));
+  return NS_OK;
 }

directory/xpcom/base/src/nsLDAPConnection.h

@@ -34,29 +34,22 @@
 #ifndef _nsLDAPConnection_h_
 #define _nsLDAPConnection_h_
 
+#include "nsILDAPConnection.h"
 #include "ldap.h"
 
-class nsLDAPConnection {
+class nsLDAPConnection : public nsILDAPConnection {
 
     friend class nsLDAPOperation;
     friend class nsLDAPMessage;
 
   public:
+    NS_DECL_ISUPPORTS;
+    NS_DECL_NSILDAPCONNECTION;
 
-  // constructor
+    // constructor & destructor
+    //
     nsLDAPConnection();
-
-  // destructor
-  ~nsLDAPConnection();
-
-  // wrapper for ldap_init()
-  bool Init(const char *defhost, const int defport);
-  
-  // wrapper for ldap_get_lderrno()
-  int GetLdErrno(char **matched, char **string);
-
-  // construct the string version of GetLdErrno
-  char *GetErrorString(void);
+    virtual ~nsLDAPConnection();
 
   protected: