From e62cf76b943d99957e03f72a52ded5398a21a99c Mon Sep 17 00:00:00 2001
From: Joshua Haberman <jhaberman@gmail.com>
Date: Mon, 5 Oct 2020 22:50:15 -0700
Subject: [PATCH] Added missing base classes.

---
 php/src/Google/Protobuf/Internal/AnyBase.php  | 86 +++++++++++++++++++
 .../Protobuf/Internal/TimestampBase.php       | 32 +++++++
 2 files changed, 118 insertions(+)
 create mode 100644 php/src/Google/Protobuf/Internal/AnyBase.php
 create mode 100644 php/src/Google/Protobuf/Internal/TimestampBase.php

diff --git a/php/src/Google/Protobuf/Internal/AnyBase.php b/php/src/Google/Protobuf/Internal/AnyBase.php
new file mode 100644
index 0000000000..cba922d475
--- /dev/null
+++ b/php/src/Google/Protobuf/Internal/AnyBase.php
@@ -0,0 +1,86 @@
+<?php
+
+namespace Google\Protobuf\Internal;
+
+/**
+ * Base class for Google\Protobuf\Any, this contains hand-written convenience
+ * methods like pack() and unpack().
+ */
+class AnyBase extends \Google\Protobuf\Internal\Message
+{
+    const TYPE_URL_PREFIX = 'type.googleapis.com/';
+
+    /**
+     * This method will try to resolve the type_url in Any message to get the
+     * targeted message type. If failed, an error will be thrown. Otherwise,
+     * the method will create a message of the targeted type and fill it with
+     * the decoded value in Any.
+     * @return Message unpacked message
+     * @throws \Exception Type url needs to be type.googleapis.com/fully-qualified.
+     * @throws \Exception Class hasn't been added to descriptor pool.
+     * @throws \Exception cannot decode data in value field.
+     */
+    public function unpack()
+    {
+        // Get fully qualified name from type url.
+        $url_prifix_len = strlen(GPBUtil::TYPE_URL_PREFIX);
+        if (substr($this->type_url, 0, $url_prifix_len) !=
+                GPBUtil::TYPE_URL_PREFIX) {
+            throw new \Exception(
+                "Type url needs to be type.googleapis.com/fully-qulified");
+        }
+        $fully_qualifed_name =
+            substr($this->type_url, $url_prifix_len);
+
+        // Create message according to fully qualified name.
+        $pool = \Google\Protobuf\Internal\DescriptorPool::getGeneratedPool();
+        $desc = $pool->getDescriptorByProtoName($fully_qualifed_name);
+        if (is_null($desc)) {
+            throw new \Exception("Class ".$fully_qualifed_name
+                                     ." hasn't been added to descriptor pool");
+        }
+        $klass = $desc->getClass();
+        $msg = new $klass();
+
+        // Merge data into message.
+        $msg->mergeFromString($this->value);
+        return $msg;
+    }
+
+    /**
+     * The type_url will be created according to the given message’s type and
+     * the value is encoded data from the given message..
+     * @param message: A proto message.
+     */
+    public function pack($msg)
+    {
+        if (!$msg instanceof Message) {
+            trigger_error("Given parameter is not a message instance.",
+                          E_USER_ERROR);
+            return;
+        }
+
+        // Set value using serialized message.
+        $this->value = $msg->serializeToString();
+
+        // Set type url.
+        $pool = \Google\Protobuf\Internal\DescriptorPool::getGeneratedPool();
+        $desc = $pool->getDescriptorByClassName(get_class($msg));
+        $fully_qualifed_name = $desc->getFullName();
+        $this->type_url = GPBUtil::TYPE_URL_PREFIX . $fully_qualifed_name;
+    }
+
+    /**
+     * This method returns whether the type_url in any_message is corresponded
+     * to the given class.
+     * @param klass: The fully qualified PHP class name of a proto message type.
+     */
+    public function is($klass)
+    {
+        $pool = \Google\Protobuf\Internal\DescriptorPool::getGeneratedPool();
+        $desc = $pool->getDescriptorByClassName($klass);
+        $fully_qualifed_name = $desc->getFullName();
+        $type_url = GPBUtil::TYPE_URL_PREFIX . $fully_qualifed_name;
+        return $this->type_url === $type_url;
+    }
+}
diff --git a/php/src/Google/Protobuf/Internal/TimestampBase.php b/php/src/Google/Protobuf/Internal/TimestampBase.php
new file mode 100644
index 0000000000..653d1e99d7
--- /dev/null
+++ b/php/src/Google/Protobuf/Internal/TimestampBase.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace Google\Protobuf\Internal;
+
+/**
+ * Base class for Google\Protobuf\Timestamp, this contains hand-written
+ * convenience methods.
+ */
+class TimestampBase extends \Google\Protobuf\Internal\Message
+{
+    /*
+     * Converts PHP DateTime to Timestamp.
+     *
+     * @param \DateTime $datetime
+     */
+    public function fromDateTime(\DateTime $datetime)
+    {
+        $this->seconds = $datetime->getTimestamp();
+        $this->nanos = 1000 * $datetime->format('u');
+    }
+
+    /**
+     * Converts Timestamp to PHP DateTime.
+     *
+     * @return \DateTime $datetime
+     */
+    public function toDateTime()
+    {
+        $time = sprintf('%s.%06d', $this->seconds, $this->nanos / 1000);
+        return \DateTime::createFromFormat('U.u', $time);
+    }
+}