add api and tool for query mxpassfiles, fixes

libmxclient/determinant/mxpassfile/mxpassfile.go

@@ -87,28 +87,20 @@ func parseLine(line string) *Entry {
 	}
 }
 
-func isWild(s string) bool {
-	if s == "" || s == "*" {
+func superCMP(fileitem, filteritem string) bool {
+	if filteritem == "*" {
 		return true
 	}
-	return false
-}
-
-func superCMP(s1, s2 string) bool {
-	if isWild(s1) || isWild(s2) {
-		return true
-	}
-	//fmt.Printf("sCMP: '%s' '%s'\n", s1, s2)
-	return s1 == s2
+	return fileitem == filteritem
 }
 
 // FindPassword finds the password for the provided synapsehost, localpart, and domain. An empty
 // string will be returned if no match is found.
 func (pf *Passfile) FindPassword(matrixhost, localpart, domain string) string {
 	for _, e := range pf.Entries {
-		if (e.Matrixhost == "*" || e.Matrixhost == matrixhost) &&
-			(e.Localpart == "*" || e.Localpart == localpart) &&
-			(e.Domain == "*" || e.Domain == domain) {
+		if superCMP(e.Matrixhost, matrixhost) &&
+			superCMP(e.Localpart, localpart) &&
+			superCMP(e.Domain, domain) {
 			return e.Token
 		}
 	}

libmxclient/mxclientlib.go

@@ -170,6 +170,20 @@ func cliv0_serverinfo(url *C.char) *C.char {
 	return C.CString(result)
 }
 
+//export cliv0_mxpassitem
+func cliv0_mxpassitem(mxpassfile_path *C.char, url *C.char, localpart *C.char, domain *C.char) *C.char {
+	item, err := mxutils.GetMXPassItem(C.GoString(mxpassfile_path), C.GoString(url), C.GoString(localpart), C.GoString(domain))
+	if err != nil {
+		return C.CString(fmt.Sprintf("ERR: %v", err))
+	}
+	out, err := json.Marshal(item)
+	if err != nil {
+		return C.CString(fmt.Sprintf("ERR: %v", err))
+	}
+	s := string(out)
+	return C.CString(s)
+}
+
 /*
 high level api, supports multiple clients
 the same handler can be attached to multiple clients

libmxclient/mxutils/mxpass.go

@@ -0,0 +1,20 @@
+// Copyright (C) 2026 saces@c-base.org
+// SPDX-License-Identifier: AGPL-3.0-only
+package mxutils
+
+import (
+	"errors"
+	"mxclientlib/determinant/mxpassfile"
+)
+
+func GetMXPassItem(mxpassfile_path string, url string, localpart string, domain string) (*mxpassfile.Entry, error) {
+	pf, err := mxpassfile.ReadPassfile(mxpassfile_path)
+	if err != nil {
+		return nil, err
+	}
+	e := pf.FindPasswordFill(url, localpart, domain)
+	if e == nil {
+		return nil, errors.New("no item found.")
+	}
+	return e, nil
+}