Windows promptHidden (#49)

Windows promptHidden

Author: adhocore

README.md

@@ -330,7 +330,7 @@ $interactor->greenBold("The name is: $name", true);
 
 #### Prompt hidden
 
-> Currently not supported in windows platform, but maybe supported in future.
+> On windows platform, it may change the fontface which can be [fixed](https://superuser.com/a/757591).
 
 ```php
 $passValidator = function ($pass) {

src/IO/Interactor.php

@@ -313,15 +313,7 @@ public function prompt(string $text, $default = null, callable $fn = null, int $
      */
     public function promptHidden(string $text, callable $fn = null, int $retry = 3)
     {
-        $winOS = '\\' === \DIRECTORY_SEPARATOR;
-
-        // @codeCoverageIgnoreStart
-        if ($winOS) {
-            $this->writer->error('Hidden input not supported, Press Ctrl+C if you would like to abort', true);
-        }
-        // @codeCoverageIgnoreEnd
-
-        return $this->prompt($text, null, $fn, $retry, !$winOS);
+        return $this->prompt($text, null, $fn, $retry, true);
     }
 
     /**

src/Input/Reader.php

@@ -62,6 +62,12 @@ public function read($default = null, callable $fn = null)
      */
     public function readHidden($default = null, callable $fn = null)
     {
+        // @codeCoverageIgnoreStart
+        if ('\\' === \DIRECTORY_SEPARATOR) {
+            return $this->readHiddenWinOS($default, $fn);
+        }
+        // @codeCoverageIgnoreEnd
+
         \shell_exec('stty -echo');
         $in = $this->read($default, $fn);
         \shell_exec('stty echo');
@@ -70,4 +76,31 @@ public function readHidden($default = null, callable $fn = null)
 
         return $in;
     }
+
+    /**
+     * Read a line from configured stream (or terminal) but don't echo it back.
+     *
+     * @codeCoverageIgnore
+     *
+     * @param callable|null $fn The validator/sanitizer callback.
+     *
+     * @return mixed
+     */
+    private function readHiddenWinOS($default = null, callable $fn = null)
+    {
+        $cmd = 'powershell -Command ' . \implode('; ', \array_filter([
+            '$pword = Read-Host -AsSecureString',
+            '$pword = [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($pword)',
+            '$pword = [System.Runtime.InteropServices.Marshal]::PtrToStringAuto($pword)',
+            'echo $pword',
+        ]));
+
+        $in = \rtrim(\shell_exec($cmd), "\r\n");
+
+        if ('' === $in && null !== $default) {
+            return $default;
+        }
+
+        return $fn ? $fn($in) : $in;
+    }
 }