Add Alias @pmf for @pmFromFile

Author: satwiksps

Diff for: internal/operators/pm_from_file.go

@@ -51,5 +51,6 @@ func newPMFromFile(options plugintypes.OperatorOptions) (plugintypes.Operator, e
 }
 
 func init() {
-	Register("pmFromFile", newPMFromFile)
+    Register("pmFromFile", newPMFromFile)
+    Register("pmf", newPMFromFile)
 }

Diff for: internal/operators/pm_from_file_test.go

@@ -0,0 +1,62 @@
+package operators
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/corazawaf/coraza/v3/experimental/plugins/plugintypes"
+	"github.com/corazawaf/coraza/v3/internal/corazawaf"
+)
+
+func TestPmFromFileAlias(t *testing.T) {
+	opts := plugintypes.OperatorOptions{
+		Arguments: "testfile.txt",
+		Path:      []string{"/mock/path"},
+		Root:      "/mock/root",
+	}
+
+	mockFileContent := []byte("test_1\ntest_2\n")
+	loadFromFile = func(filepath string, paths []string, root string) ([]byte, error) {
+		if filepath == "testfile.txt" {
+			return mockFileContent, nil
+		}
+		return nil, fmt.Errorf("file not found")
+	}
+
+	pmFromFile, err := newPMFromFile(opts)
+	if err != nil {
+		t.Fatalf("Failed to initialize @pmFromFile: %v", err)
+	}
+
+	opts.Arguments = "testfile.txt"
+	pmfAlias, err := newPMFromFile(opts)
+	if err != nil {
+		t.Fatalf("Failed to initialize @pmf alias: %v", err)
+	}
+
+	waf := corazawaf.NewWAF()
+	tx := waf.NewTransaction()
+	tx.Capture = true
+
+	tests := []struct {
+		operator plugintypes.Operator
+		input    string
+		expect   bool
+	}{
+		{pmFromFile, "test_1", true},
+		{pmFromFile, "nonexistent", false},
+		{pmfAlias, "test_2", true},
+		{pmfAlias, "another_test", false},
+	}
+
+	for _, test := range tests {
+		if res := test.operator.Evaluate(tx, test.input); res != test.expect {
+			t.Errorf("Operator evaluation failed: input=%q, expected=%v, got=%v", test.input, test.expect, res)
+		}
+	}
+
+	opts.Arguments = "invalidfile.txt"
+	if _, err := newPMFromFile(opts); err == nil {
+		t.Errorf("Expected failure for invalid file, but got no error")
+	}
+}