Match Zend behavior for openssl_pkey_get_{public,private}

We weren't treating array(key, passphrase) correctly.

Closes #815

hphp/runtime/ext/ext_openssl.cpp

@@ -181,6 +181,22 @@ public:
    */
   static Object Get(CVarRef var, bool public_key,
                     const char *passphrase = NULL) {
+    if (var.is(KindOfArray)) {
+      Array arr = var.toArray();
+      if (!arr.exists(int64_t(0)) || !arr.exists(int64_t(1))) {
+        raise_warning("key array must be of the form "
+                        "array(0 => key, 1 => phrase)");
+        return Object();
+      }
+
+      String zphrase = arr[1].toString();
+      return GetHelper(arr[0], public_key, zphrase.data());
+    }
+    return GetHelper(var, public_key, passphrase);
+  }
+
+  static Object GetHelper(CVarRef var, bool public_key,
+                          const char *passphrase) {
     Object ocert;
     EVP_PKEY *key = NULL;
 
@@ -217,17 +233,6 @@ public:
           BIO_free(in);
         }
       } else {
-        String zphrase;
-        if (var.is(KindOfArray)) {
-          Array arr = var.toArray();
-          if (!arr.exists(int64_t(0)) || !arr.exists(int64_t(1))) {
-            raise_warning("key array must be of the form "
-                            "array(0 => key, 1 => phrase)");
-            return Object();
-          }
-          zphrase = arr[1].toString();
-          passphrase = zphrase.data();
-        }
         /* we want the private key */
         BIO *in = Certificate::ReadData(var);
         if (in == NULL) return Object();

hphp/test/slow/ext_openssl/openssl_pkey_get_passphrase.php

@@ -0,0 +1,36 @@
+<?php
+$_privateKeyString = <<<PK
+-----BEGIN RSA PRIVATE KEY-----
+Proc-Type: 4,ENCRYPTED
+DEK-Info: DES-EDE3-CBC,692C329D4C517E8C
+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+-----END RSA PRIVATE KEY-----
+PK;
+
+$_publicKeyString = <<<PK
+-----BEGIN PUBLIC KEY-----
+MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC01FK995TLzyCJdyfH1yKVJwJ+
+sSxpKMLiRHfk39SPFEoePqCQ0PCiisvekx9gJNW2xpg2Ecx/8XQRq2Gq/1AymJQ0
+wNPRgnCo0pi+eSjx8DJ+bWlvWVstxH93QgZPywQegS0VdGEkYD+70dl0jykRwQJ3
+W/noSOyMhVl694yFbwIDAQAB
+-----END PUBLIC KEY-----
+PK;
+
+$_passPhrase = 'test';
+$publicKey = openssl_pkey_get_public(array($_publicKeyString, $_passPhrase));
+$privateKey = openssl_pkey_get_private(array($_privateKeyString, $_passPhrase));
+var_dump(openssl_public_encrypt($_passPhrase, $crypted, $publicKey));
+var_dump(openssl_private_decrypt($crypted, $decrypted, $privateKey));

hphp/test/slow/ext_openssl/openssl_pkey_get_passphrase.php.expect

@@ -0,0 +1,2 @@
+bool(true)
+bool(true)