From 59af3b1930d9fb2b692a451b7004b4015a5f4ebd Mon Sep 17 00:00:00 2001
From: proggeler <proggeler@de-mes.nl>
Date: Wed, 19 Jun 2024 18:51:46 +0200
Subject: [PATCH] #2: zlib inflate on strings, streams can be appended by a
 filter to inflate

---
 src/Source/GzipStreamParser.php               | 40 -------------------
 src/Source/GzipStringParser.php               | 28 +++++++++++++
 ...arserTest.php => GzipStringParserTest.php} |  6 +--
 3 files changed, 31 insertions(+), 43 deletions(-)
 delete mode 100644 src/Source/GzipStreamParser.php
 create mode 100644 src/Source/GzipStringParser.php
 rename tests/Source/{GzipStreamParserTest.php => GzipStringParserTest.php} (78%)

diff --git a/src/Source/GzipStreamParser.php b/src/Source/GzipStreamParser.php
deleted file mode 100644
index 9ed7668..0000000
--- a/src/Source/GzipStreamParser.php
+++ /dev/null
@@ -1,40 +0,0 @@
-<?php
-
-namespace DMT\XmlParser\Source;
-
-use InvalidArgumentException;
-
-class GzipStreamParser implements Parser
-{
-    /** @var resource */
-    private $stream;
-    private int $length = 1024;
-
-    /**
-     * @param resource $stream
-     */
-    public function __construct($stream, int $length = 1024)
-    {
-        if (!is_resource($stream)) {
-            throw new InvalidArgumentException('Stream is not a resource');
-        }
-        $this->stream = $stream;
-        $this->length = $length;
-    }
-
-    /**
-     * @inheritDoc
-     */
-    public function parse(): iterable
-    {
-        $tmp = inflate_init(ZLIB_ENCODING_GZIP);
-
-        while ($chunk = @fread($this->stream, $this->length)) {
-            yield from str_split(inflate_add($tmp, $chunk));
-        }
-
-        if ($chunk === false && !feof($this->stream)) {
-            throw new \RuntimeException('Could not read from source');
-        }
-    }
-}
\ No newline at end of file
diff --git a/src/Source/GzipStringParser.php b/src/Source/GzipStringParser.php
new file mode 100644
index 0000000..cca14a4
--- /dev/null
+++ b/src/Source/GzipStringParser.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace DMT\XmlParser\Source;
+
+class GzipStringParser implements Parser
+{
+    private string $source;
+    private int $length;
+
+    public function __construct(string $source, int $length = 1024)
+    {
+        $this->source = $source;
+        $this->length = $length;
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function parse(): iterable
+    {
+        $tmp = inflate_init(ZLIB_ENCODING_GZIP);
+        $chunks = str_split($this->source, $this->length);
+
+        foreach ($chunks as $chunk) {
+            yield from str_split(inflate_add($tmp, $chunk));
+        }
+    }
+}
\ No newline at end of file
diff --git a/tests/Source/GzipStreamParserTest.php b/tests/Source/GzipStringParserTest.php
similarity index 78%
rename from tests/Source/GzipStreamParserTest.php
rename to tests/Source/GzipStringParserTest.php
index ea3a2f7..70b14be 100644
--- a/tests/Source/GzipStreamParserTest.php
+++ b/tests/Source/GzipStringParserTest.php
@@ -2,10 +2,10 @@
 
 namespace DMT\Test\XmlParser\Source;
 
-use DMT\XmlParser\Source\GzipStreamParser;
+use DMT\XmlParser\Source\GzipStringParser;
 use PHPUnit\Framework\TestCase;
 
-class GzipStreamParserTest extends TestCase
+class GzipStringParserTest extends TestCase
 {
     public function testParse(): void
     {
@@ -15,7 +15,7 @@ public function testParse(): void
         fwrite($handle, zlib_encode($books, ZLIB_ENCODING_GZIP));
         rewind($handle);
 
-        $parser = new GzipStreamParser($handle);
+        $parser = new GzipStringParser(stream_get_contents($handle));
         $contents = '';
         foreach ($parser->parse() as $char) {
             $contents .= $char;