Added RSS feed builder classes.

TODO.md

@@ -1,22 +1,5 @@
 # TODO
 
-## High Prio
-
-  - Create tests for everything testable.
-
-  - Create similarly address GD2/Imagick wrappers.
-
-  - Figure out the SQL Query builder.
-    - Might make sense to just have a predicate builder and selector builder.
+  - Create similarly addressable GD2/Imagick wrappers.
 
   - Create a URL formatter.
-
-  - Add RSS/Atom feed construction utilities.
-
-## Low Prio
-
-  - Get guides working on phpdoc.
-
-  - Create phpdoc template.
-
-  - Review all constructors and see which one should be marked @internal.

VERSION

@@ -1 +1 @@
-0.2410.20209
+0.2410.32039

src/Bencode/Bencode.php

@@ -7,7 +7,6 @@ namespace Index\Bencode;
 
 use InvalidArgumentException;
 use RuntimeException;
-use Index\Io\{GenericStream,Stream,TempFileStream};
 
 /**
  * Provides a Bencode serialiser.
@@ -80,7 +79,7 @@ final class Bencode {
     /**
      * Decodes a bencoded string.
      *
-     * @param mixed $bencoded The bencoded string being decoded. Can be an Index Stream, readable resource or a string.
+     * @param mixed $bencoded The bencoded string being decoded. Can be a readable resource or a string.
      * @param int $depth Maximum nesting depth of the structure being decoded. The value must be greater than 0.
      * @param bool $associative When true, Bencoded dictionaries will be returned as associative arrays; when false, Bencoded dictionaries will be returned as objects.
      * @throws InvalidArgumentException If $bencoded string is not set to a valid type.
@@ -90,18 +89,22 @@ final class Bencode {
      */
     public static function decode(mixed $bencoded, int $depth = self::DEFAULT_DEPTH, bool $associative = true): mixed {
         if(is_string($bencoded)) {
-            $bencoded = TempFileStream::fromString($bencoded);
-            $bencoded->seek(0);
-        } elseif(is_resource($bencoded))
-            $bencoded = new GenericStream($bencoded);
-        elseif(!($bencoded instanceof Stream))
-            throw new InvalidArgumentException('$bencoded must be a string, an Index Stream or a file resource.');
+            $handle = fopen('php://memory', 'r+b');
+            if($handle === false)
+                throw new RuntimeException('failed to fopen a memory stream');
+
+            fwrite($handle, $bencoded);
+            fseek($handle, 0);
+            $bencoded = $handle;
+            $handle = null;
+        } elseif(!is_resource($bencoded))
+            throw new InvalidArgumentException('$bencoded must be a string or a stream resource.');
 
         if($depth < 1)
             throw new InvalidArgumentException('Maximum depth reached, structure is too dense.');
 
-        $char = $bencoded->readChar();
-        if($char === null)
+        $char = fgetc($bencoded);
+        if($char === false)
             throw new RuntimeException('Unexpected end of stream in $bencoded.');
 
         switch($char) {
@@ -109,8 +112,8 @@ final class Bencode {
                 $number = '';
 
                 for(;;) {
-                    $char = $bencoded->readChar();
-                    if($char === null)
+                    $char = fgetc($bencoded);
+                    if($char === false)
                         throw new RuntimeException('Unexpected end of stream while parsing integer.');
                     if($char === 'e')
                         break;
@@ -131,12 +134,12 @@ final class Bencode {
                 $list = [];
 
                 for(;;) {
-                    $char = $bencoded->readChar();
-                    if($char === null)
+                    $char = fgetc($bencoded);
+                    if($char === false)
                         throw new RuntimeException('Unexpected end of stream while parsing list.');
                     if($char === 'e')
                         break;
-                    $bencoded->seek(-1, Stream::CURRENT);
+                    fseek($bencoded, -1, SEEK_CUR);
                     $list[] = self::decode($bencoded, $depth - 1, $associative);
                 }
 
@@ -146,14 +149,14 @@ final class Bencode {
                 $dict = [];
 
                 for(;;) {
-                    $char = $bencoded->readChar();
-                    if($char === null)
+                    $char = fgetc($bencoded);
+                    if($char === false)
                         throw new RuntimeException('Unexpected end of stream while parsing dictionary');
                     if($char === 'e')
                         break;
                     if(!ctype_digit($char))
                         throw new RuntimeException('Unexpected dictionary key type, expected a string.');
-                    $bencoded->seek(-1, Stream::CURRENT);
+                    fseek($bencoded, -1, SEEK_CUR);
                     $dict[self::decode($bencoded, $depth - 1, $associative)] = self::decode($bencoded, $depth - 1, $associative);
                 }
 
@@ -169,8 +172,8 @@ final class Bencode {
                 $length = $char;
 
                 for(;;) {
-                    $char = $bencoded->readChar();
-                    if($char === null)
+                    $char = fgetc($bencoded);
+                    if($char === false)
                         throw new RuntimeException('Unexpected end of character while parsing string length.');
                     if($char === ':')
                         break;
@@ -182,7 +185,13 @@ final class Bencode {
                     $length .= $char;
                 }
 
-                return $bencoded->read((int)$length);
+                $length = (int)$length;
+                if($length < 0)
+                    throw new RuntimeException('Length is Bencoded stream is less than 0.');
+                if($length < 1)
+                    return '';
+
+                return fread($bencoded, $length);
         }
     }
 }

src/Bencode/BencodeHttpContent.php

@@ -1,17 +1,17 @@
 <?php
-// BencodedContent.php
+// BencodeHttpContent.php
 // Created: 2022-02-10
 // Updated: 2024-10-02
 
-namespace Index\Http\Content;
+namespace Index\Bencode;
 
-use Index\Bencode\{Bencode,BencodeSerializable};
-use Index\Io\{Stream,FileStream};
+use RuntimeException;
+use Index\Http\HttpContent;
 
 /**
  * Represents Bencoded body content for a HTTP message.
  */
-class BencodedContent implements BencodeSerializable, HttpContent {
+class BencodeHttpContent implements BencodeSerializable, HttpContent {
     /**
      * @param mixed $content Content to be bencoded.
      */
@@ -49,28 +49,36 @@ class BencodedContent implements BencodeSerializable, HttpContent {
      * Creates an instance from encoded content.
      *
      * @param mixed $encoded Bencoded content.
-     * @return BencodedContent Instance representing the provided content.
+     * @return BencodeHttpContent Instance representing the provided content.
      */
-    public static function fromEncoded(mixed $encoded): BencodedContent {
-        return new BencodedContent(Bencode::decode($encoded));
+    public static function fromEncoded(mixed $encoded): BencodeHttpContent {
+        return new BencodeHttpContent(Bencode::decode($encoded));
     }
 
     /**
      * Creates an instance from an encoded file.
      *
      * @param string $path Path to the bencoded file.
-     * @return BencodedContent Instance representing the provided path.
+     * @return BencodeHttpContent Instance representing the provided path.
      */
-    public static function fromFile(string $path): BencodedContent {
-        return self::fromEncoded(FileStream::openRead($path));
+    public static function fromFile(string $path): BencodeHttpContent {
+        $handle = fopen($path, 'rb');
+        if(!is_resource($handle))
+            throw new RuntimeException('$path could not be opened');
+
+        try {
+            return self::fromEncoded($handle);
+        } finally {
+            fclose($handle);
+        }
     }
 
     /**
      * Creates an instance from the raw request body.
      *
-     * @return BencodedContent Instance representing the request body.
+     * @return BencodeHttpContent Instance representing the request body.
      */
-    public static function fromRequest(): BencodedContent {
+    public static function fromRequest(): BencodeHttpContent {
         return self::fromFile('php://input');
     }
 }

src/Bencode/BencodeHttpContentHandler.php

@@ -1,18 +1,16 @@
 <?php
-// BencodeContentHandler.php
+// BencodeHttpContentHandler.php
 // Created: 2024-03-28
 // Updated: 2024-10-02
 
-namespace Index\Http\ContentHandling;
+namespace Index\Bencode;
 
-use Index\Bencode\BencodeSerializable;
-use Index\Http\HttpResponseBuilder;
-use Index\Http\Content\BencodedContent;
+use Index\Http\{HttpContentHandler,HttpResponseBuilder};
 
 /**
  * Represents a Bencode content handler for building HTTP response messages.
  */
-class BencodeContentHandler implements ContentHandler {
+class BencodeHttpContentHandler implements HttpContentHandler {
     public function match(mixed $content): bool {
         return $content instanceof BencodeSerializable;
     }
@@ -21,6 +19,6 @@ class BencodeContentHandler implements ContentHandler {
         if(!$response->hasContentType())
             $response->setTypePlain();
 
-        $response->setContent(new BencodedContent($content));
+        $response->setContent(new BencodeHttpContent($content));
     }
 }

src/Colour/Colour.php

@@ -303,7 +303,9 @@ abstract class Colour implements Stringable {
         return self::$none;
     }
 
-    /** @internal */
+    /**
+     * Initialises the Colour class.
+     */
     public static function init(): void {
         self::$none = new ColourNull;
     }

src/Data/DbResult.php

@@ -6,7 +6,6 @@
 namespace Index\Data;
 
 use Index\Closeable;
-use Index\Io\Stream;
 
 /**
  * Represents a database result set.
@@ -99,14 +98,6 @@ interface DbResult extends Closeable {
      */
     function getBooleanOrNull(int|string $index): ?bool;
 
-    /**
-     * Gets the value from the target index as a Stream.
-     *
-     * @param int|string $index Target index.
-     * @return ?Stream A Stream if data is available, null if not.
-     */
-    function getStream(int|string $index): ?Stream;
-
     /**
      * Creates an iterator for this result.
      *

src/Data/DbTools.php

@@ -154,11 +154,9 @@ final class DbTools {
             return DbType::FLOAT;
         if(is_int($value))
             return DbType::INTEGER;
-        // ┌ should probably also check for Stringable, length should also be taken into consideration
-        // ↓ though maybe with that it's better to assume that when an object is passed it'll always be Massive
-        if(is_string($value))
-            return DbType::STRING;
+        if(is_resource($value))
             return DbType::BLOB;
+        return DbType::STRING;
     }
 
     /**

src/Data/MariaDb/MariaDbBackend.php

@@ -18,7 +18,10 @@ class MariaDbBackend implements DbBackend {
     }
 
     /**
-     * @internal
+     * Formats a MySQL integer version as a string.
+     *
+     * @param int $version MySQL version number.
+     * @return string
      */
     public static function intToVersion(int $version): string {
         $sub = $version % 100;

src/Data/MariaDb/MariaDbResult.php

@@ -9,7 +9,6 @@ use mysqli_result;
 use mysqli_stmt;
 use InvalidArgumentException;
 use Index\Data\{DbResult,DbResultTrait};
-use Index\Io\{Stream,TempFileStream};
 
 /**
  * Represents a MariaDB/MySQL database result.
@@ -68,17 +67,6 @@ abstract class MariaDbResult implements DbResult {
         return $this->currentRow[$index] ?? null;
     }
 
-    public function getStream(int|string $index): ?Stream {
-        if($this->isNull($index))
-            return null;
-
-        $value = $this->getValue($index);
-        if(!is_scalar($value))
-            return null;
-
-        return new TempFileStream((string)$value);
-    }
-
     abstract function close(): void;
 
     public function __destruct() {

src/Data/MariaDb/MariaDbResultLib.php

@@ -10,8 +10,6 @@ use RuntimeException;
 
 /**
  * Implementation of MariaDbResult for libmysql.
- *
- * @internal
  */
 class MariaDbResultLib extends MariaDbResult {
     /** @var mixed[] */

src/Data/MariaDb/MariaDbResultNative.php

@@ -11,8 +11,6 @@ use RuntimeException;
 
 /**
  * Implementation of MariaDbResult for mysqlnd.
- *
- * @internal
  */
 class MariaDbResultNative extends MariaDbResult {
     public function __construct(mysqli_stmt|mysqli_result $result) {

src/Data/MariaDb/MariaDbStatement.php

@@ -8,8 +8,8 @@ namespace Index\Data\MariaDb;
 use mysqli_stmt;
 use InvalidArgumentException;
 use RuntimeException;
+use Stringable;
 use Index\Data\{DbType,DbStatement};
-use Index\Io\Stream;
 
 /**
  * Represents a MariaDB/MySQL prepared statement.
@@ -35,8 +35,6 @@ class MariaDbStatement implements DbStatement {
 
     /**
      * Determines which MariaDbResult implementation should be used.
-     *
-     * @internal
      */
     public static function construct(): void {
         if(self::$constructed !== false)
@@ -132,13 +130,10 @@ class MariaDbStatement implements DbStatement {
             if($type === DbType::NULL)
                 $value = null;
             elseif($type === DbType::BLOB) {
-                if($value instanceof Stream) {
-                    while(($data = $value->read(8192)) !== null)
-                        $this->statement->send_long_data($key, $data);
-                } elseif(is_resource($value)) {
+                if(is_resource($value)) {
                     while($data = fread($value, 8192))
                         $this->statement->send_long_data($key, $data);
-                } elseif(is_scalar($value))
+                } elseif(is_scalar($value) || $value instanceof Stringable)
                     $this->statement->send_long_data($key, (string)$value);
 
                 $value = null;

src/Data/NullDb/NullDbResult.php

@@ -6,7 +6,6 @@
 namespace Index\Data\NullDb;
 
 use Index\Data\{DbResult,DbResultIterator};
-use Index\Io\Stream;
 
 /**
  * Represents a dummy database result.
@@ -56,10 +55,6 @@ class NullDbResult implements DbResult {
         return null;
     }
 
-    public function getStream(int|string $index): ?Stream {
-        return null;
-    }
-
     public function getIterator(callable $construct): DbResultIterator {
         return new DbResultIterator($this, $construct);
     }

src/Data/Sqlite/SqliteConnection.php

@@ -8,7 +8,6 @@ namespace Index\Data\Sqlite;
 use RuntimeException;
 use SQLite3;
 use Index\Data\{DbConnection,DbTransactions,DbStatement,DbResult};
-use Index\Io\{GenericStream,Stream};
 
 /**
  * Represents a client for an SQLite database.
@@ -458,22 +457,20 @@ class SqliteConnection implements DbConnection, DbTransactions {
     }
 
     /**
-     * Opens a BLOB field as a Stream.
-     *
-     * To be used instead of getStream on SqliteResult.
+     * Opens a BLOB field as a resource.
      *
      * @param string $table Name of the source table.
      * @param string $column Name of the source column.
      * @param int $rowId ID of the source row.
      * @throws RuntimeException If opening the BLOB failed.
-     * @return Stream BLOB field as a Stream.
+     * @return resource BLOB field as a file resource.
      */
-    public function getBlobStream(string $table, string $column, int $rowId): Stream {
+    public function getBlobStream(string $table, string $column, int $rowId): mixed {
         $handle = $this->connection->openBlob($table, $column, $rowId);
         if(!is_resource($handle))
             throw new RuntimeException((string)$this->getLastErrorString(), $this->getLastErrorCode());
 
-        return new GenericStream($handle);
+        return $handle;
     }
 
     public function getLastInsertId(): int|string {

src/Data/Sqlite/SqliteResult.php

@@ -8,7 +8,6 @@ namespace Index\Data\Sqlite;
 use SQLite3Result;
 use InvalidArgumentException;
 use Index\Data\{DbResult,DbResultTrait};
-use Index\Io\{Stream,TempFileStream};
 
 /**
  * Represents an SQLite result set.
@@ -54,20 +53,5 @@ class SqliteResult implements DbResult {
         return $this->currentRow[$index] ?? null;
     }
 
-    /**
-     * Gets the value from the target index as a Stream.
-     * If you're aware that you're using SQLite it may make more sense to use SqliteConnection::getBlobStream instead.
-     */
-    public function getStream(int|string $index): ?Stream {
-        if($this->isNull($index))
-            return null;
-
-        $value = $this->getValue($index);
-        if(!is_scalar($value))
-            return null;
-
-        return new TempFileStream((string)$value);
-    }
-
     public function close(): void {}
 }

src/Data/Sqlite/SqliteStatement.php

@@ -10,7 +10,6 @@ use SQLite3Stmt;
 use InvalidArgumentException;
 use RuntimeException;
 use Index\Data\{DbTools,DbType,DbStatement,DbResult};
-use Index\Io\Stream;
 
 /**
  * Represents a prepared SQLite SQL statement.

src/Http/Content/StreamContent.php

@@ -1,54 +0,0 @@
-<?php
-// StreamContent.php
-// Created: 2022-02-10
-// Updated: 2024-10-02
-
-namespace Index\Http\Content;
-
-use Index\Io\{Stream,FileStream};
-
-/**
- * Represents Stream body content for a HTTP message.
- */
-class StreamContent implements HttpContent {
-    /**
-     * @param Stream $stream Stream that represents this message body.
-     */
-    public function __construct(
-        private Stream $stream
-    ) {}
-
-    /**
-     * Retrieves the underlying stream.
-     *
-     * @return Stream Underlying stream.
-     */
-    public function getStream(): Stream {
-        return $this->stream;
-    }
-
-    public function __toString(): string {
-        return (string)$this->stream;
-    }
-
-    /**
-     * Creates an instance from a file.
-     *
-     * @param string $path Path to the file.
-     * @return StreamContent Instance representing the provided path.
-     */
-    public static function fromFile(string $path): StreamContent {
-        return new StreamContent(
-            FileStream::openRead($path)
-        );
-    }
-
-    /**
-     * Creates an instance from the raw request body.
-     *
-     * @return StreamContent Instance representing the request body.
-     */
-    public static function fromRequest(): StreamContent {
-        return self::fromFile('php://input');
-    }
-}

src/Http/ContentHandling/StreamContentHandler.php

@@ -1,27 +0,0 @@
-<?php
-// StreamContentHandler.php
-// Created: 2024-03-28
-// Updated: 2024-10-02
-
-namespace Index\Http\ContentHandling;
-
-use Index\Http\HttpResponseBuilder;
-use Index\Http\Content\StreamContent;
-use Index\Io\Stream;
-
-/**
- * Represents a Stream content handler for building HTTP response messages.
- */
-class StreamContentHandler implements ContentHandler {
-    public function match(mixed $content): bool {
-        return $content instanceof Stream;
-    }
-
-    /** @param Stream $content */
-    public function handle(HttpResponseBuilder $response, mixed $content): void {
-        if(!$response->hasContentType())
-            $response->setTypeStream();
-
-        $response->setContent(new StreamContent($content));
-    }
-}

src/Http/FormHttpContent.php

@@ -1,17 +1,16 @@
 <?php
-// FormContent.php
+// FormHttpContent.php
 // Created: 2022-02-10
 // Updated: 2024-10-02
 
-namespace Index\Http\Content;
+namespace Index\Http;
 
 use RuntimeException;
-use Index\Http\HttpUploadedFile;
 
 /**
  * Represents form body content for a HTTP message.
  */
-class FormContent implements HttpContent {
+class FormHttpContent implements HttpContent {
     /**
      * @param array<string, mixed> $postFields Form fields.
      * @param array<string, HttpUploadedFile|array<string, mixed>> $uploadedFiles Uploaded files.
@@ -95,10 +94,10 @@ class FormContent implements HttpContent {
      *
      * @param array<string, mixed> $post Form fields.
      * @param array<string, mixed> $files Uploaded files.
-     * @return FormContent Instance representing the request body.
+     * @return FormHttpContent Instance representing the request body.
      */
-    public static function fromRaw(array $post, array $files): FormContent {
-        return new FormContent(
+    public static function fromRaw(array $post, array $files): FormHttpContent {
+        return new FormHttpContent(
             $post,
             HttpUploadedFile::createFromPhpFiles($files)
         );
@@ -107,9 +106,9 @@ class FormContent implements HttpContent {
     /**
      * Creates an instance from the $_POST and $_FILES superglobals.
      *
-     * @return FormContent Instance representing the request body.
+     * @return FormHttpContent Instance representing the request body.
      */
-    public static function fromRequest(): FormContent {
+    public static function fromRequest(): FormHttpContent {
         /** @var array<string, mixed> $postVars */
         $postVars = $_POST;
 

src/Http/HtmlHttpErrorHandler.php

@@ -1,16 +1,14 @@
 <?php
-// HtmlErrorHandler.php
+// HtmlHttpErrorHandler.php
 // Created: 2024-03-28
 // Updated: 2024-10-02
 
-namespace Index\Http\ErrorHandling;
-
-use Index\Http\{HttpResponseBuilder,HttpRequest};
+namespace Index\Http;
 
 /**
  * Represents a basic HTML error message handler for building HTTP response messages.
  */
-class HtmlErrorHandler implements ErrorHandler {
+class HtmlHttpErrorHandler implements HttpErrorHandler {
     private const TEMPLATE = <<<HTML
     <!doctype html>
     <html>

src/Http/HttpContent.php

@@ -3,7 +3,7 @@
 // Created: 2022-02-08
 // Updated: 2024-10-02
 
-namespace Index\Http\Content;
+namespace Index\Http;
 
 use Stringable;
 

src/Http/HttpContentHandler.php

@@ -1,16 +1,14 @@
 <?php
-// ContentHandler.php
+// HttpContentHandler.php
 // Created: 2024-03-28
 // Updated: 2024-10-02
 
-namespace Index\Http\ContentHandling;
-
-use Index\Http\HttpResponseBuilder;
+namespace Index\Http;
 
 /**
  * Represents a content handler for building HTTP response messages.
  */
-interface ContentHandler {
+interface HttpContentHandler {
     /**
      * Determines whether this handler is suitable for the body content.
      *

src/Http/HttpErrorHandler.php

@@ -1,16 +1,14 @@
 <?php
-// ErrorHandler.php
+// HttpErrorHandler.php
 // Created: 2024-03-28
 // Updated: 2024-10-02
 
-namespace Index\Http\ErrorHandling;
-
-use Index\Http\{HttpResponseBuilder,HttpRequest};
+namespace Index\Http;
 
 /**
  * Represents an error message handler for building HTTP response messages.
  */
-interface ErrorHandler {
+interface HttpErrorHandler {
     /**
      * Applies an error message template to the provided HTTP response builder.
      *

src/Http/HttpMessage.php

@@ -6,8 +6,8 @@
 namespace Index\Http;
 
 use RuntimeException;
-use Index\Io\Stream;
-use Index\Http\Content\{BencodedContent,FormContent,HttpContent,JsonContent,StreamContent,StringContent};
+use Index\Bencode\BencodeHttpContent;
+use Index\Json\JsonHttpContent;
 
 /**
  * Represents a base HTTP message.
@@ -112,47 +112,38 @@ abstract class HttpMessage {
     }
 
     /**
-     * Checks if the body content is JsonContent.
+     * Checks if the body content is JsonHttpContent.
      *
-     * @return bool true if it is JsonContent.
+     * @return bool true if it is JsonHttpContent.
      */
     public function isJsonContent(): bool {
-        return $this->content instanceof JsonContent;
+        return $this->content instanceof JsonHttpContent;
     }
 
     /**
-     * Checks if the body content is FormContent.
+     * Checks if the body content is FormHttpContent.
      *
-     * @return bool true if it is FormContent.
+     * @return bool true if it is FormHttpContent.
      */
     public function isFormContent(): bool {
-        return $this->content instanceof FormContent;
+        return $this->content instanceof FormHttpContent;
     }
 
     /**
-     * Checks if the body content is StreamContent.
+     * Checks if the body content is StringHttpContent.
      *
-     * @return bool true if it is StreamContent.
-     */
-    public function isStreamContent(): bool {
-        return $this->content instanceof StreamContent;
-    }
-
-    /**
-     * Checks if the body content is StringContent.
-     *
-     * @return bool true if it is StringContent.
+     * @return bool true if it is StringHttpContent.
      */
     public function isStringContent(): bool {
-        return $this->content instanceof StringContent;
+        return $this->content instanceof StringHttpContent;
     }
 
     /**
-     * Checks if the body content is BencodedContent.
+     * Checks if the body content is BencodeHttpContent.
      *
-     * @return bool true if it is BencodedContent.
+     * @return bool true if it is BencodeHttpContent.
      */
-    public function isBencodedContent(): bool {
-        return $this->content instanceof BencodedContent;
+    public function isBencodeContent(): bool {
+        return $this->content instanceof BencodeHttpContent;
     }
 }

src/Http/HttpMessageBuilder.php

@@ -5,8 +5,9 @@
 
 namespace Index\Http;
 
-use Index\Io\Stream;
-use Index\Http\Content\{HttpContent,StreamContent,StringContent};
+use InvalidArgumentException;
+use RuntimeException;
+use Stringable;
 
 /**
  * Represents a base HTTP message builder.
@@ -119,13 +120,28 @@ class HttpMessageBuilder {
     /**
      * Sets HTTP message body contents.
      *
-     * @param HttpContent|Stream|string|null $content Body contents
+     * @param HttpContent|Stringable|string|int|float|resource|null $content Body contents
      */
-    public function setContent(HttpContent|Stream|string|null $content): void {
-        if($content instanceof Stream)
-            $content = new StreamContent($content);
-        elseif(is_string($content))
-            $content = new StringContent($content);
+    public function setContent(mixed $content): void {
+        if($content instanceof HttpContent || $content === null) {
             $this->content = $content;
+            return;
+        }
+
+        if(is_scalar($content) || $content instanceof Stringable) {
+            $this->content = new StringHttpContent((string)$content);
+            return;
+        }
+
+        if(is_resource($content)) {
+            $content = stream_get_contents($content);
+            if($content === false)
+                throw new RuntimeException('was unable to read the stream resource in $content');
+
+            $this->content = new StringHttpContent($content);
+            return;
+        }
+
+        throw new InvalidArgumentException('$content not a supported type');
     }
 }

src/Http/HttpRequest.php

@@ -8,7 +8,7 @@ namespace Index\Http;
 use InvalidArgumentException;
 use RuntimeException;
 use Index\MediaType;
-use Index\Http\Content\{HttpContent,JsonContent,StreamContent,FormContent};
+use Index\Json\JsonHttpContent;
 
 /**
  * Represents a HTTP request message.
@@ -182,12 +182,12 @@ class HttpRequest extends HttpMessage {
 
         if($contentType !== null
             && ($contentType->equals('application/json') || $contentType->equals('application/x-json')))
-            $build->setContent(JsonContent::fromRequest());
+            $build->setContent(JsonHttpContent::fromRequest());
         elseif($contentType !== null
             && ($contentType->equals('application/x-www-form-urlencoded') || $contentType->equals('multipart/form-data')))
-            $build->setContent(FormContent::fromRequest());
+            $build->setContent(FormHttpContent::fromRequest());
         elseif($contentLength > 0)
-            $build->setContent(StreamContent::fromRequest());
+            $build->setContent(StringHttpContent::fromRequest());
 
         return $build->toRequest();
     }

src/Http/HttpResponse.php

@@ -5,8 +5,6 @@
 
 namespace Index\Http;
 
-use Index\Http\Content\HttpContent;
-
 /**
  * Represents a HTTP response message.
  */

src/Http/HttpUploadedFile.php

@@ -7,16 +7,13 @@ namespace Index\Http;
 
 use InvalidArgumentException;
 use RuntimeException;
-use Index\{MediaType,Closeable};
-use Index\Io\{Stream,FileStream};
+use Index\MediaType;
 
 /**
  * Represents an uploaded file in a multipart/form-data request.
  */
-class HttpUploadedFile implements Closeable {
+class HttpUploadedFile {
     private bool $hasMoved = false;
-    private ?Stream $stream = null;
-
     private MediaType $suggestedMediaType;
 
     /**
@@ -101,25 +98,6 @@ class HttpUploadedFile implements Closeable {
         return $this->hasMoved;
     }
 
-    /**
-     * Gets a read-only stream to the uploaded file.
-     *
-     * @throws RuntimeException If the file cannot be opened.
-     * @return Stream Read-only stream of the upload file.
-     */
-    public function getStream(): Stream {
-        if($this->stream === null) {
-            if($this->errorCode !== UPLOAD_ERR_OK)
-                throw new RuntimeException('Can\'t open stream because of an upload error.');
-            if($this->hasMoved)
-                throw new RuntimeException('Can\'t open stream because file has already been moved.');
-
-            $this->stream = FileStream::openRead($this->localFileName);
-        }
-
-        return $this->stream;
-    }
-
     /**
      * Moves the uploaded file to its final destination.
      *
@@ -138,9 +116,6 @@ class HttpUploadedFile implements Closeable {
         if(empty($path))
             throw new InvalidArgumentException('$path is not a valid path.');
 
-        if($this->stream !== null)
-            $this->stream->close();
-
         $this->hasMoved = PHP_SAPI === 'CLI'
             ? rename($this->localFileName, $path)
             : move_uploaded_file($this->localFileName, $path);
@@ -151,15 +126,6 @@ class HttpUploadedFile implements Closeable {
         $this->localFileName = $path;
     }
 
-    public function close(): void {
-        if($this->stream !== null)
-            $this->stream->close();
-    }
-
-    public function __destruct() {
-        $this->close();
-    }
-
     /**
      * Creates a HttpUploadedFile instance from an entry in the $_FILES superglobal.
      *

src/Http/PlainHttpErrorHandler.php

@@ -1,16 +1,14 @@
 <?php
-// PlainErrorHandler.php
+// PlainHttpErrorHandler.php
 // Created: 2024-03-28
 // Updated: 2024-10-02
 
-namespace Index\Http\ErrorHandling;
-
-use Index\Http\{HttpResponseBuilder,HttpRequest};
+namespace Index\Http;
 
 /**
  * Represents a plain text error message handler for building HTTP response messages.
  */
-class PlainErrorHandler implements ErrorHandler {
+class PlainHttpErrorHandler implements HttpErrorHandler {
     public function handle(HttpResponseBuilder $response, HttpRequest $request, int $code, string $message): void {
         $response->setTypePlain();
         $response->setContent(sprintf('HTTP %03d %s', $code, $message));

src/Http/Routing/HttpRouter.php

@@ -7,10 +7,12 @@ namespace Index\Http\Routing;
 
 use stdClass;
 use InvalidArgumentException;
-use Index\Http\{HttpResponse,HttpResponseBuilder,HttpRequest};
-use Index\Http\Content\StringContent;
-use Index\Http\ContentHandling\{BencodeContentHandler,ContentHandler,JsonContentHandler,StreamContentHandler};
-use Index\Http\ErrorHandling\{HtmlErrorHandler,ErrorHandler,PlainErrorHandler};
+use Index\Bencode\BencodeHttpContentHandler;
+use Index\Http\{
+    HtmlHttpErrorHandler,HttpContentHandler,HttpErrorHandler,HttpResponse,
+    HttpResponseBuilder,HttpRequest,PlainHttpErrorHandler,StringHttpContent
+};
+use Index\Json\JsonHttpContentHandler;
 
 class HttpRouter implements Router {
     use RouterTrait;
@@ -24,19 +26,19 @@ class HttpRouter implements Router {
     /** @var array<string, array<string, callable>> */
     private array $dynamicRoutes = [];
 
-    /** @var ContentHandler[] */
+    /** @var HttpContentHandler[] */
     private array $contentHandlers = [];
 
-    private ErrorHandler $errorHandler;
+    private HttpErrorHandler $errorHandler;
 
     /**
      * @param string $charSet Default character set to specify when none is present.
-     * @param ErrorHandler|string $errorHandler Error handling to use for error responses with an empty body. 'html' for the default HTML implementation, 'plain' for the plaintext implementation.
+     * @param HttpErrorHandler|string $errorHandler Error handling to use for error responses with an empty body. 'html' for the default HTML implementation, 'plain' for the plaintext implementation.
      * @param bool $registerDefaultContentHandlers true to register default content handlers for JSON, Bencode, etc.
      */
     public function __construct(
         private string $charSet = '',
-        ErrorHandler|string $errorHandler = 'html',
+        HttpErrorHandler|string $errorHandler = 'html',
         bool $registerDefaultContentHandlers = true,
     ) {
         $this->setErrorHandler($errorHandler);
@@ -65,22 +67,22 @@ class HttpRouter implements Router {
     /**
      * Retrieves the error handler instance.
      *
-     * @return ErrorHandler The error handler.
+     * @return HttpErrorHandler The error handler.
      */
-    public function getErrorHandler(): ErrorHandler {
+    public function getErrorHandler(): HttpErrorHandler {
         return $this->errorHandler;
     }
 
     /**
      * Changes the active error handler.
      *
-     * @param ErrorHandler|string $handler Error handling to use for error responses with an empty body. 'html' for the default HTML implementation, 'plain' for the plaintext implementation.
+     * @param HttpErrorHandler|string $handler Error handling to use for error responses with an empty body. 'html' for the default HTML implementation, 'plain' for the plaintext implementation.
      */
-    public function setErrorHandler(ErrorHandler|string $handler): void {
-        if($handler instanceof ErrorHandler)
+    public function setErrorHandler(HttpErrorHandler|string $handler): void {
+        if($handler instanceof HttpErrorHandler)
             $this->errorHandler = $handler;
         elseif($handler === 'html')
-            $this->setHTMLErrorHandler();
+            $this->setHtmlErrorHandler();
         else // plain
             $this->setPlainErrorHandler();
     }
@@ -88,23 +90,23 @@ class HttpRouter implements Router {
     /**
      * Set the error handler to the basic HTML one.
      */
-    public function setHTMLErrorHandler(): void {
-        $this->errorHandler = new HtmlErrorHandler;
+    public function setHtmlErrorHandler(): void {
+        $this->errorHandler = new HtmlHttpErrorHandler;
     }
 
     /**
      * Set the error handler to the plain text one.
      */
     public function setPlainErrorHandler(): void {
-        $this->errorHandler = new PlainErrorHandler;
+        $this->errorHandler = new PlainHttpErrorHandler;
     }
 
     /**
      * Register a message body content handler.
      *
-     * @param ContentHandler $contentHandler Content handler to register.
+     * @param HttpContentHandler $contentHandler Content handler to register.
      */
-    public function registerContentHandler(ContentHandler $contentHandler): void {
+    public function registerContentHandler(HttpContentHandler $contentHandler): void {
         if(!in_array($contentHandler, $this->contentHandlers))
             $this->contentHandlers[] = $contentHandler;
     }
@@ -113,9 +115,8 @@ class HttpRouter implements Router {
      * Register the default content handlers.
      */
     public function registerDefaultContentHandlers(): void {
-        $this->registerContentHandler(new StreamContentHandler);
-        $this->registerContentHandler(new JsonContentHandler);
-        $this->registerContentHandler(new BencodeContentHandler);
+        $this->registerContentHandler(new JsonHttpContentHandler);
+        $this->registerContentHandler(new BencodeHttpContentHandler);
     }
 
     /**
@@ -281,7 +282,7 @@ class HttpRouter implements Router {
             if(!$response->hasStatusCode() && $result >= 100 && $result < 600)
                 $this->writeErrorPage($response, $request, $result);
             else
-                $response->setContent(new StringContent((string)$result));
+                $response->setContent(new StringHttpContent((string)$result));
         } elseif(!$response->hasContent()) {
             foreach($this->contentHandlers as $contentHandler)
                 if($contentHandler->match($result)) {
@@ -291,7 +292,7 @@ class HttpRouter implements Router {
 
             if(!$response->hasContent() && is_scalar($result)) {
                 $result = (string)$result;
-                $response->setContent(new StringContent($result));
+                $response->setContent(new StringHttpContent($result));
 
                 if(!$response->hasContentType()) {
                     if(strtolower(substr($result, 0, 14)) === '<!doctype html')

src/Http/StringHttpContent.php

@@ -1,16 +1,16 @@
 <?php
-// StringContent.php
+// StringHttpContent.php
 // Created: 2022-02-10
 // Updated: 2024-10-02
 
-namespace Index\Http\Content;
+namespace Index\Http;
 
 use Stringable;
 
 /**
  * Represents string body content for a HTTP message.
  */
-class StringContent implements HttpContent {
+class StringHttpContent implements HttpContent {
     /**
      * @param string $string String that represents this message body.
      */
@@ -35,32 +35,32 @@ class StringContent implements HttpContent {
      * Creates an instance an existing object.
      *
      * @param Stringable|string $string Object to cast to a string.
-     * @return StringContent Instance representing the provided object.
+     * @return StringHttpContent Instance representing the provided object.
      */
-    public static function fromObject(Stringable|string $string): StringContent {
-        return new StringContent((string)$string);
+    public static function fromObject(Stringable|string $string): StringHttpContent {
+        return new StringHttpContent((string)$string);
     }
 
     /**
      * Creates an instance from a file.
      *
      * @param string $path Path to the file.
-     * @return StringContent Instance representing the provided path.
+     * @return StringHttpContent Instance representing the provided path.
      */
-    public static function fromFile(string $path): StringContent {
+    public static function fromFile(string $path): StringHttpContent {
         $string = file_get_contents($path);
         if($string === false)
             $string = '';
 
-        return new StringContent($string);
+        return new StringHttpContent($string);
     }
 
     /**
      * Creates an instance from the raw request body.
      *
-     * @return StringContent Instance representing the request body.
+     * @return StringHttpContent Instance representing the request body.
      */
-    public static function fromRequest(): StringContent {
+    public static function fromRequest(): StringHttpContent {
         return self::fromFile('php://input');
     }
 }

src/Io/FileStream.php

@@ -1,256 +0,0 @@
-<?php
-// FileStream.php
-// Created: 2021-04-30
-// Updated: 2024-10-02
-
-namespace Index\Io;
-
-use ErrorException;
-use RuntimeException;
-
-/**
- * Represents a Stream representing a file.
- */
-class FileStream extends GenericStream {
-    /**
-     * Open file for reading, throw if not exists.
-     *
-     * @var string
-     */
-    public const OPEN_READ = 'rb';
-
-    /**
-     * Open file for reading and writing, throw if not exist.
-     *
-     * @var string
-     */
-    public const OPEN_READ_WRITE = 'r+b';
-
-    /**
-     * Create file for writing, truncate if exist.
-     *
-     * @var string
-     */
-    public const NEW_WRITE = 'wb';
-
-    /**
-     * Create file for reading and writing, truncate if exist.
-     *
-     * @var string
-     */
-    public const NEW_READ_WRITE = 'w+b';
-
-    /**
-     * Open file for appending, create if not exist.
-     *
-     * @var string
-     */
-    public const APPEND_WRITE = 'ab';
-
-    /**
-     * Open file for reading and appending, create if not exist.
-     *
-     * @var string
-     */
-    public const APPEND_READ_WRITE = 'a+b';
-
-    /**
-     * Create file for writing, throw if exist.
-     *
-     * @var string
-     */
-    public const CREATE_WRITE = 'xb';
-
-    /**
-     * Create file for reading and writing, throw if exist.
-     *
-     * @var string
-     */
-    public const CREATE_READ_WRITE = 'x+b';
-
-    /**
-     * Opens or creates a file for writing.
-     *
-     * @var string
-     */
-    public const OPEN_OR_CREATE_WRITE = 'cb';
-
-    /**
-     * Opens or creates a file for reading and writing.
-     *
-     * @var string
-     */
-    public const OPEN_OR_CREATE_READ_WRITE = 'c+b';
-
-    /**
-     * Don't lock file.
-     *
-     * @var int
-     */
-    public const LOCK_NONE = 0;
-
-    /**
-     * Lock for reading.
-     *
-     * @var int
-     */
-    public const LOCK_READ = LOCK_SH;
-
-    /**
-     * Lock for writing.
-     *
-     * @var int
-     */
-    public const LOCK_WRITE = LOCK_EX;
-
-    /**
-     * Don't block during lock attempt.
-     *
-     * @var int
-     */
-    public const LOCK_NON_BLOCKING = LOCK_NB;
-
-    /**
-     * @param string $path Path to the file.
-     * @param string $mode Stream mode to use to open the file.
-     * @param int $lock Locking method to use.
-     * @throws RuntimeException If the file could not be opened.
-     */
-    public function __construct(
-        string $path,
-        string $mode,
-        private int $lock
-    ) {
-        try {
-            $stream = fopen($path, $mode);
-        } catch(ErrorException $ex) {
-            throw new RuntimeException('An error occurred while trying to open a file.', $ex->getCode(), $ex);
-        }
-
-        if($stream === false)
-            throw new RuntimeException('An unhandled error occurred while trying to open a file.');
-
-        parent::__construct($stream);
-
-        if($this->lock & self::LOCK_WRITE)
-            flock($this->stream, LOCK_EX);
-        elseif($this->lock & self::LOCK_READ)
-            flock($this->stream, LOCK_SH);
-    }
-
-    public function close(): void {
-        if($this->lock !== self::LOCK_NONE)
-            flock($this->stream, LOCK_UN);
-        parent::close();
-    }
-
-    /**
-     * Open file for reading, throw if not exists.
-     *
-     * @param string $path Path to the file.
-     * @param int $lock Locking method to use.
-     * @return FileStream Stream to file.
-     */
-    public static function openRead(string $path, int $lock = self::LOCK_NONE): FileStream {
-        return new FileStream($path, self::OPEN_READ, $lock);
-    }
-
-    /**
-     * Open file for reading and writing, throw if not exist.
-     *
-     * @param string $path Path to the file.
-     * @param int $lock Locking method to use.
-     * @return FileStream Stream to file.
-     */
-    public static function openReadWrite(string $path, int $lock = self::LOCK_NONE): FileStream {
-        return new FileStream($path, self::OPEN_READ_WRITE, $lock);
-    }
-
-    /**
-     * Create file for writing, truncate if exist.
-     *
-     * @param string $path Path to the file.
-     * @param int $lock Locking method to use.
-     * @return FileStream Stream to file.
-     */
-    public static function newWrite(string $path, int $lock = self::LOCK_NONE): FileStream {
-        return new FileStream($path, self::NEW_WRITE, $lock);
-    }
-
-    /**
-     * Create file for reading and writing, truncate if exist.
-     *
-     * @param string $path Path to the file.
-     * @param int $lock Locking method to use.
-     * @return FileStream Stream to file.
-     */
-    public static function newReadWrite(string $path, int $lock = self::LOCK_NONE): FileStream {
-        return new FileStream($path, self::NEW_READ_WRITE, $lock);
-    }
-
-    /**
-     * Open file for appending, create if not exist.
-     *
-     * @param string $path Path to the file.
-     * @param int $lock Locking method to use.
-     * @return FileStream Stream to file.
-     */
-    public static function appendWrite(string $path, int $lock = self::LOCK_NONE): FileStream {
-        return new FileStream($path, self::APPEND_WRITE, $lock);
-    }
-
-    /**
-     * Open file for reading and appending, create if not exist.
-     *
-     * @param string $path Path to the file.
-     * @param int $lock Locking method to use.
-     * @return FileStream Stream to file.
-     */
-    public static function appendReadWrite(string $path, int $lock = self::LOCK_NONE): FileStream {
-        return new FileStream($path, self::APPEND_READ_WRITE, $lock);
-    }
-
-    /**
-     * Create file for writing, throw if exist.
-     *
-     * @param string $path Path to the file.
-     * @param int $lock Locking method to use.
-     * @return FileStream Stream to file.
-     */
-    public static function createWrite(string $path, int $lock = self::LOCK_NONE): FileStream {
-        return new FileStream($path, self::CREATE_WRITE, $lock);
-    }
-
-    /**
-     * Create file for reading and writing, throw if exist.
-     *
-     * @param string $path Path to the file.
-     * @param int $lock Locking method to use.
-     * @return FileStream Stream to file.
-     */
-    public static function createReadWrite(string $path, int $lock = self::LOCK_NONE): FileStream {
-        return new FileStream($path, self::CREATE_READ_WRITE, $lock);
-    }
-
-    /**
-     * Opens or creates a file for writing.
-     *
-     * @param string $path Path to the file.
-     * @param int $lock Locking method to use.
-     * @return FileStream Stream to file.
-     */
-    public static function openOrCreateWrite(string $path, int $lock = self::LOCK_NONE): FileStream {
-        return new FileStream($path, self::OPEN_OR_CREATE_WRITE, $lock);
-    }
-
-    /**
-     * Opens or creates a file for reading and writing.
-     *
-     * @param string $path Path to the file.
-     * @param int $lock Locking method to use.
-     * @return FileStream Stream to file.
-     */
-    public static function openOrCreateReadWrite(string $path, int $lock = self::LOCK_NONE): FileStream {
-        return new FileStream($path, self::OPEN_OR_CREATE_READ_WRITE, $lock);
-    }
-}

src/Io/GenericStream.php

@@ -1,195 +0,0 @@
-<?php
-// GenericStream.php
-// Created: 2021-04-30
-// Updated: 2024-10-02
-
-namespace Index\Io;
-
-use InvalidArgumentException;
-use RuntimeException;
-
-/**
- * Represents any stream that can be handled using the C-like f* functions.
- */
-class GenericStream extends Stream {
-    /**
-     * Readable file modes.
-     *
-     * @var string[]
-     */
-    public const READABLE = [
-        'r',  'rb',  'r+', 'r+b', 'w+', 'w+b',
-        'a+', 'a+b', 'x+', 'x+b', 'c+', 'c+b',
-    ];
-
-    /**
-     * Writeable file modes.
-     *
-     * @var string[]
-     */
-    public const WRITEABLE = [
-        'r+', 'r+b', 'w',  'wb',  'w+', 'w+b',
-        'a',  'ab',  'a+', 'a+b', 'x',  'xb',
-        'x+', 'x+b', 'c',  'cb',  'c+', 'c+b',
-    ];
-
-    // can't seem to turn this one into a constructor property thing?
-    /** @var resource */
-    protected $stream;
-
-    private bool $canRead;
-    private bool $canWrite;
-    private bool $canSeek;
-
-    /**
-     * @param resource $stream Resource that this stream represents.
-     */
-    public function __construct($stream) {
-        if(!is_resource($stream) || get_resource_type($stream) !== 'stream')
-            throw new InvalidArgumentException('$stream is not a valid stream resource.');
-        $this->stream = $stream;
-
-        $metaData = $this->metaData();
-        $this->canRead = in_array($metaData['mode'], self::READABLE);
-        $this->canWrite = in_array($metaData['mode'], self::WRITEABLE);
-        $this->canSeek = is_bool($metaData['seekable']) ? $metaData['seekable'] : false;
-    }
-
-    /**
-     * Returns the underlying resource handle.
-     *
-     * @return resource Underlying resource handle.
-     */
-    public function getResource() {
-        return $this->stream;
-    }
-
-    /** @return array<string|int, mixed> */
-    private function stat(): array {
-        $stat = fstat($this->stream);
-        if($stat === false)
-            throw new RuntimeException('fstat returned false');
-
-        return $stat;
-    }
-
-    public function getPosition(): int {
-        $tell = ftell($this->stream);
-        if($tell === false)
-            return -1;
-
-        return $tell;
-    }
-
-    public function getLength(): int {
-        if(!$this->canSeek())
-            return -1;
-
-        $size = $this->stat()['size'];
-        if(!is_int($size))
-            return -1;
-
-        return $size;
-    }
-    public function setLength(int $length): void {
-        if($length < 0)
-            throw new InvalidArgumentException('$length must be a positive integer');
-
-        ftruncate($this->stream, $length);
-    }
-
-    /** @return array<string, mixed> */
-    private function metaData(): array {
-        return stream_get_meta_data($this->stream);
-    }
-    public function canRead(): bool {
-        return $this->canRead;
-    }
-    public function canWrite(): bool {
-        return $this->canWrite;
-    }
-    public function canSeek(): bool {
-        return $this->canSeek;
-    }
-    public function hasTimedOut(): bool {
-        $timedOut = $this->metaData()['timed_out'];
-        if(!is_bool($timedOut))
-            return false;
-
-        return $timedOut;
-    }
-    public function isBlocking(): bool {
-        $blocked = $this->metaData()['blocked'];
-        if(!is_bool($blocked))
-            return false;
-
-        return $blocked;
-    }
-
-    public function isEnded(): bool {
-        return feof($this->stream);
-    }
-
-    public function readChar(): ?string {
-        $char = fgetc($this->stream);
-        if($char === false)
-            return null;
-        return $char;
-    }
-
-    public function readLine(): ?string {
-        return ($line = fgets($this->stream)) === false
-            ? null : $line;
-    }
-
-    public function read(int $length): ?string {
-        if($length < 1)
-            throw new InvalidArgumentException('$length must be greater than 0');
-
-        $buffer = fread($this->stream, $length);
-        if($buffer === false)
-            return null;
-
-        return $buffer;
-    }
-
-    public function seek(int $offset, int $origin = Stream::START): bool {
-        return fseek($this->stream, $offset, $origin) === 0;
-    }
-
-    public function write(string $buffer, int $length = -1): void {
-        if($length >= 0)
-            fwrite($this->stream, $buffer, $length);
-        else
-            fwrite($this->stream, $buffer);
-    }
-
-    public function writeChar(string $char): void {
-        fwrite($this->stream, $char, 1);
-    }
-
-    public function flush(): void {
-        fflush($this->stream);
-    }
-
-    public function close(): void {
-        try {
-            fclose($this->stream);
-        } catch(\Error $ex) {}
-    }
-
-    #[\Override]
-    public function copyTo(Stream $other): void {
-        if($other instanceof GenericStream) {
-            stream_copy_to_stream($this->stream, $other->stream);
-        } else parent::copyTo($other);
-    }
-
-    public function __toString(): string {
-        $contents = stream_get_contents($this->stream);
-        if($contents === false)
-            return '';
-
-        return $contents;
-    }
-}

src/Io/MemoryStream.php

@@ -1,33 +0,0 @@
-<?php
-// MemoryStream.php
-// Created: 2021-05-02
-// Updated: 2024-10-02
-
-namespace Index\Io;
-
-use RuntimeException;
-
-/**
- * Represents an in-memory stream.
- */
-class MemoryStream extends GenericStream {
-    public function __construct() {
-        $stream = fopen('php://memory', 'r+b');
-        if($stream === false)
-            throw new RuntimeException('failed to fopen a memory stream');
-
-        parent::__construct($stream);
-    }
-
-    /**
-     * Creates a memory stream from a string/binary data.
-     *
-     * @param string $string String to create the stream from.
-     * @return MemoryStream Stream representing the string.
-     */
-    public static function fromString(string $string): MemoryStream {
-        $stream = new MemoryStream;
-        $stream->write($string);
-        return $stream;
-    }
-}

src/Io/NetworkStream.php

@@ -1,149 +0,0 @@
-<?php
-// NetworkStream.php
-// Created: 2021-04-30
-// Updated: 2024-10-02
-
-namespace Index\Io;
-
-use ErrorException;
-use RuntimeException;
-use Index\Net\{IpAddress,EndPoint};
-
-/**
- * Represents a network socket stream.
- */
-class NetworkStream extends GenericStream {
-    /**
-     * @param string $hostname Hostname to connect to.
-     * @param int $port Port to connect at.
-     * @param float|null $timeout Amount of seconds until timeout, null for php.ini default.
-     * @throws RuntimeException If the socket failed to open.
-     */
-    public function __construct(string $hostname, int $port, float|null $timeout) {
-        try {
-            $stream = fsockopen($hostname, $port, $errcode, $errmsg, $timeout);
-        } catch(ErrorException $ex) {
-            throw new RuntimeException('An error occurred while trying to connect.', $ex->getCode(), $ex);
-        }
-
-        if($stream === false)
-            throw new RuntimeException('An unhandled error occurred while trying to connect.');
-
-        parent::__construct($stream);
-    }
-
-    /**
-     * Sets whether the network stream should have blocking reads and writes.
-     *
-     * @param bool $blocking true to block, false to async.
-     */
-    public function setBlocking(bool $blocking): void {
-        stream_set_blocking($this->stream, $blocking);
-    }
-
-    /**
-     * Opens a network socket stream to an endpoint represented by an Index EndPoint instance.
-     *
-     * @param EndPoint $endPoint Host to connect to.
-     * @param float|null $timeout Amount of seconds until timeout, null for php.ini default.
-     */
-    public static function openEndPoint(EndPoint $endPoint, float|null $timeout = null): NetworkStream {
-        return new NetworkStream((string)$endPoint, -1, $timeout);
-    }
-
-    /**
-     * Opens an SSL network socket stream to an endpoint represented by an Index EndPoint instance.
-     *
-     * @param EndPoint $endPoint Host to connect to.
-     * @param float|null $timeout Amount of seconds until timeout, null for php.ini default.
-     */
-    public static function openEndPointSSL(EndPoint $endPoint, float|null $timeout = null): NetworkStream {
-        return new NetworkStream('ssl://' . ((string)$endPoint), -1, $timeout);
-    }
-
-    /**
-     * Opens a TLS network socket stream to an endpoint represented by an Index EndPoint instance.
-     *
-     * @param EndPoint $endPoint Host to connect to.
-     * @param float|null $timeout Amount of seconds until timeout, null for php.ini default.
-     */
-    public static function openEndPointTLS(EndPoint $endPoint, float|null $timeout = null): NetworkStream {
-        return new NetworkStream('tls://' . ((string)$endPoint), -1, $timeout);
-    }
-
-    /**
-     * Opens a network socket stream to an endpoint represented by an hostname and port.
-     *
-     * @param string $hostname Hostname to connect to.
-     * @param int $port Port to connect at.
-     * @param float|null $timeout Amount of seconds until timeout, null for php.ini default.
-     */
-    public static function openHost(string $hostname, int $port, float|null $timeout = null): NetworkStream {
-        return new NetworkStream($hostname, $port, $timeout);
-    }
-
-    /**
-     * Opens an SSL network socket stream to an endpoint represented by an hostname and port.
-     *
-     * @param string $hostname Hostname to connect to.
-     * @param int $port Port to connect at.
-     * @param float|null $timeout Amount of seconds until timeout, null for php.ini default.
-     */
-    public static function openHostSSL(string $hostname, int $port, float|null $timeout = null): NetworkStream {
-        return new NetworkStream('ssl://' . ((string)$hostname), $port, $timeout);
-    }
-
-    /**
-     * Opens a TLS network socket stream to an endpoint represented by an hostname and port.
-     *
-     * @param string $hostname Hostname to connect to.
-     * @param int $port Port to connect at.
-     * @param float|null $timeout Amount of seconds until timeout, null for php.ini default.
-     */
-    public static function openHostTLS(string $hostname, int $port, float|null $timeout = null): NetworkStream {
-        return new NetworkStream('tls://' . ((string)$hostname), $port, $timeout);
-    }
-
-    /**
-     * Opens a network socket stream to an endpoint represented by an Index IpAddress instance and port.
-     *
-     * @param IpAddress $address Address to connect to.
-     * @param int $port Port to connect at.
-     * @param float|null $timeout Amount of seconds until timeout, null for php.ini default.
-     */
-    public static function openAddress(IpAddress $address, int $port, float|null $timeout = null): NetworkStream {
-        return new NetworkStream($address->getAddress(), $port, $timeout);
-    }
-
-    /**
-     * Opens an SSL network socket stream to an endpoint represented by an Index IpAddress instance and port.
-     *
-     * @param IpAddress $address Address to connect to.
-     * @param int $port Port to connect at.
-     * @param float|null $timeout Amount of seconds until timeout, null for php.ini default.
-     */
-    public static function openAddressSSL(IpAddress $address, int $port, float|null $timeout = null): NetworkStream {
-        return new NetworkStream('ssl://' . $address->getAddress(), $port, $timeout);
-    }
-
-    /**
-     * Opens a TLS network socket stream to an endpoint represented by an Index IpAddress instance and port.
-     *
-     * @param IpAddress $address Address to connect to.
-     * @param int $port Port to connect at.
-     * @param float|null $timeout Amount of seconds until timeout, null for php.ini default.
-     */
-    public static function openAddressTLS(IpAddress $address, int $port, float|null $timeout = null): NetworkStream {
-        return new NetworkStream('tls://' . $address->getAddress(), $port, $timeout);
-    }
-
-    /**
-     * Opens a network socket stream to an endpoint represented by a UNIX socket path.
-     *
-     * @param string $path Path to connect to.
-     * @param float|null $timeout Amount of seconds until timeout, null for php.ini default.
-     */
-    public static function openUnix(string $path, float|null $timeout = null): NetworkStream {
-        return new NetworkStream('unix://' . $path, -1, $timeout);
-    }
-}

src/Io/ProcessStream.php

@@ -1,116 +0,0 @@
-<?php
-// ProcessStream.php
-// Created: 2023-01-25
-// Updated: 2024-10-02
-
-namespace Index\Io;
-
-use InvalidArgumentException;
-use RuntimeException;
-
-/**
- * Represents a stream to a running sub-process.
- */
-class ProcessStream extends Stream {
-    /** @var resource */
-    private $handle;
-
-    private bool $canRead;
-    private bool $canWrite;
-
-    /**
-     * @param string $command Command to run for this stream.
-     * @param string $mode File mode to use.
-     * @throws RuntimeException If we were unable to spawn the process.
-     */
-    public function __construct(string $command, string $mode) {
-        $handle = popen($command, $mode);
-        if($handle === false)
-            throw new RuntimeException('Failed to create process.');
-
-        $this->handle = $handle;
-        $this->canRead = strpos($mode, 'r') !== false;
-        $this->canWrite = strpos($mode, 'w') !== false;
-
-        if(!is_resource($this->handle))
-            throw new RuntimeException('Failed to create process.');
-    }
-
-    public function getPosition(): int {
-        return -1;
-    }
-
-    public function getLength(): int {
-        return -1;
-    }
-    public function setLength(int $length): void {}
-
-    public function canRead(): bool {
-        return $this->canRead;
-    }
-
-    public function canWrite(): bool {
-        return $this->canWrite;
-    }
-
-    public function canSeek(): bool {
-        return false;
-    }
-
-    public function hasTimedOut(): bool {
-        return false;
-    }
-
-    public function isBlocking(): bool {
-        return true;
-    }
-
-    public function isEnded(): bool {
-        return feof($this->handle);
-    }
-
-    public function readChar(): ?string {
-        $char = fgetc($this->handle);
-        if($char === false)
-            return null;
-        return $char;
-    }
-
-    public function readLine(): ?string {
-        return ($line = fgets($this->handle)) === false
-            ? null : $line;
-    }
-
-    public function read(int $length): ?string {
-        if($length < 1)
-            throw new InvalidArgumentException('$length must be greater than 0');
-
-        $buffer = fread($this->handle, $length);
-        if($buffer === false)
-            return null;
-
-        return $buffer;
-    }
-
-    public function seek(int $offset, int $origin = self::START): bool {
-        throw new RuntimeException('Cannot seek ProcessStream.');
-    }
-
-    public function write(string $buffer, int $length = -1): void {
-        if($length >= 0)
-            fwrite($this->handle, $buffer, $length);
-        else
-            fwrite($this->handle, $buffer);
-    }
-
-    public function writeChar(string $char): void {
-        fwrite($this->handle, $char, 1);
-    }
-
-    public function flush(): void {}
-
-    public function close(): void {
-        if(is_resource($this->handle))
-            pclose($this->handle);
-    }
-}

src/Io/Stream.php

@@ -1,219 +0,0 @@
-<?php
-// Stream.php
-// Created: 2021-04-30
-// Updated: 2024-10-02
-
-namespace Index\Io;
-
-use RuntimeException;
-use Stringable;
-use Index\Closeable;
-
-/**
- * Represents a generic data stream.
- */
-abstract class Stream implements Stringable, Closeable {
-    /**
-     * Place the cursor relative to the start of the file.
-     *
-     * @var int
-     */
-    public const START = SEEK_SET;
-
-    /**
-     * Place the cursor relative to the current position of the cursor.
-     *
-     * @var int
-     */
-    public const CURRENT = SEEK_CUR;
-
-    /**
-     * Place the cursor relative to the end of the file.
-     *
-     * @var int
-     */
-    public const END = SEEK_END;
-
-    /**
-     * Retrieves the current cursor position.
-     *
-     * @return int Cursor position.
-     */
-    abstract public function getPosition(): int;
-
-    /**
-     * Retrieves the current length of the stream.
-     *
-     * @return int Stream length.
-     */
-    abstract public function getLength(): int;
-
-    /**
-     * Sets the length of the stream.
-     *
-     * @param int $length Desired stream length.
-     */
-    abstract public function setLength(int $length): void;
-
-    /**
-     * Whether this stream is readable.
-     *
-     * @return bool true if the stream is readable.
-     */
-    abstract public function canRead(): bool;
-
-    /**
-     * Whether this stream is writeable.
-     *
-     * @return bool true if the stream is writeable.
-     */
-    abstract public function canWrite(): bool;
-
-    /**
-     * Whether this stream is seekable.
-     *
-     * @return bool true if the stream is seekable.
-     */
-    abstract public function canSeek(): bool;
-
-    /**
-     * Whether this stream has timed out.
-     *
-     * @return bool true if the stream has timed out.
-     */
-    abstract public function hasTimedOut(): bool;
-
-    /**
-     * Whether this stream has blocking operations.
-     *
-     * @return bool true if the stream has blocking operations.
-     */
-    abstract public function isBlocking(): bool;
-
-    /**
-     * Whether the cursor is at the end of the file.
-     *
-     * @return bool true if the cursor is at the end of the file.
-     */
-    abstract public function isEnded(): bool;
-
-    /**
-     * Read a single character from the stream.
-     *
-     * @return ?string One character or null if we're at the end of the stream.
-     */
-    abstract public function readChar(): ?string;
-
-    /**
-     * Read a single byte from the stream.
-     *
-     * @return int One byte or -1 if we're at the end of the stream.
-     */
-    public function readByte(): int {
-        $char = $this->readChar();
-        if($char === null)
-            return -1;
-        return ord($char);
-    }
-
-    /**
-     * Read a line of text from the stream.
-     *
-     * @return ?string One line of text or null if we're at the end of the stream.
-     */
-    abstract public function readLine(): ?string;
-
-    /**
-     * Read an amount of data from the stream.
-     *
-     * @param int $length Maximum amount of data to read.
-     * @return ?string At most a $length sized string or null if we're at the end of the stream.
-     */
-    abstract public function read(int $length): ?string;
-
-    /**
-     * Move the cursor to a different place in the stream.
-     *
-     * @param int $offset Offset to apply to the cursor position.
-     * @param int $origin Point from which to apply the offset.
-     * @throws RuntimeException If the stream is not seekable.
-     * @return bool true if the cursor offset was applied successfully.
-     */
-    abstract public function seek(int $offset, int $origin = self::START): bool;
-
-    /**
-     * Write an amount of data to the stream.
-     *
-     * @param string $buffer Buffer to write from.
-     * @param int $length Amount of data to write from the buffer, or -1 to write the entire buffer.
-     */
-    abstract public function write(string $buffer, int $length = -1): void;
-
-    /**
-     * Writes a line of text to the stream.
-     *
-     * @param string $line Line of text to write.
-     */
-    public function writeLine(string $line): void {
-        $this->write($line);
-        $this->write(PHP_EOL);
-    }
-
-    /**
-     * Writes a single character to the stream.
-     *
-     * @param string $char Character to write to the stream.
-     */
-    abstract public function writeChar(string $char): void;
-
-    /**
-     * Writes a single byte to the stream.
-     *
-     * @param int $byte Byte to write to the stream.
-     */
-    public function writeByte(int $byte): void {
-        $this->writeChar(chr($byte & 0xFF));
-    }
-
-    /**
-     * Copy the entire contents of this stream to another.
-     *
-     * Will seek to the beginning of the stream if the stream is seekable.
-     *
-     * @param Stream $other Target stream.
-     */
-    public function copyTo(Stream $other): void {
-        if($this->canSeek())
-            $this->seek(0);
-
-        while(!$this->isEnded()) {
-            $buffer = $this->read(8192);
-            if($buffer === null)
-                break;
-
-            $other->write($buffer);
-        }
-    }
-
-    /**
-     * Force write of all buffered output to the stream.
-     */
-    abstract public function flush(): void;
-
-    abstract public function close(): void;
-
-    public function __toString(): string {
-        if($this->canSeek())
-            $this->seek(0);
-
-        $string = '';
-        while(!$this->isEnded())
-            $string .= $this->read(8192);
-
-        return $string;
-    }
-
-    public function __destruct() {
-        $this->close();
-    }
-}

src/Io/TempFileStream.php

@@ -1,47 +0,0 @@
-<?php
-// TempFileStream.php
-// Created: 2021-05-02
-// Updated: 2024-10-02
-
-namespace Index\Io;
-
-use RuntimeException;
-
-/**
- * Represents a temporary file stream. Will remain in memory if the size is below a given threshold.
- */
-class TempFileStream extends GenericStream {
-    /**
-     * Default maximum size the stream can be to remain in memory and not be written to disk.
-     *
-     * @var int
-     */
-    public const MAX_MEMORY = 2 * 1024 * 1024;
-
-    /**
-     * @param ?string $body Contents of the stream.
-     * @param int $maxMemory Maximum filesize until the file is moved out of memory and to disk.
-     */
-    public function __construct(?string $body = null, int $maxMemory = self::MAX_MEMORY) {
-        $stream = fopen("php://temp/maxmemory:{$maxMemory}", 'r+b');
-        if($stream === false)
-            throw new RuntimeException('failed to fopen a temporary file stream');
-
-        parent::__construct($stream);
-
-        if($body !== null) {
-            $this->write($body);
-            $this->flush();
-        }
-    }
-
-    /**
-     * Creates a TempFileStream from a string.
-     *
-     * @param string $string Data to write to the temporary file.
-     * @return TempFileStream Stream representing the given text.
-     */
-    public static function fromString(string $string): TempFileStream {
-        return new TempFileStream($string);
-    }
-}

src/Json/JsonHttpContent.php

@@ -1,17 +1,18 @@
 <?php
-// JsonContent.php
+// JsonHttpContent.php
 // Created: 2022-02-10
 // Updated: 2024-10-02
 
-namespace Index\Http\Content;
+namespace Index\Json;
 
 use JsonSerializable;
-use Index\Io\{Stream,FileStream};
+use RuntimeException;
+use Index\Http\HttpContent;
 
 /**
  * Represents JSON body content for a HTTP message.
  */
-class JsonContent implements HttpContent, JsonSerializable {
+class JsonHttpContent implements HttpContent, JsonSerializable {
     /**
      * @param mixed $content Content to be JSON encoded.
      */
@@ -53,28 +54,32 @@ class JsonContent implements HttpContent, JsonSerializable {
      * Creates an instance from encoded content.
      *
      * @param string $encoded JSON encoded content.
-     * @return JsonContent Instance representing the provided content.
+     * @return JsonHttpContent Instance representing the provided content.
      */
-    public static function fromEncoded(string $encoded): JsonContent {
-        return new JsonContent(json_decode($encoded));
+    public static function fromEncoded(string $encoded): JsonHttpContent {
+        return new JsonHttpContent(json_decode($encoded));
     }
 
     /**
      * Creates an instance from an encoded file.
      *
      * @param string $path Path to the JSON encoded file.
-     * @return JsonContent Instance representing the provided path.
+     * @return JsonHttpContent Instance representing the provided path.
      */
-    public static function fromFile(string $path): JsonContent {
-        return self::fromEncoded(FileStream::openRead($path));
+    public static function fromFile(string $path): JsonHttpContent {
+        $contents = file_get_contents($path);
+        if($contents === false)
+            throw new RuntimeException('was unable to read file at $path');
+
+        return self::fromEncoded($contents);
     }
 
     /**
      * Creates an instance from the raw request body.
      *
-     * @return JsonContent Instance representing the request body.
+     * @return JsonHttpContent Instance representing the request body.
      */
-    public static function fromRequest(): JsonContent {
+    public static function fromRequest(): JsonHttpContent {
         return self::fromFile('php://input');
     }
 }

src/Json/JsonHttpContentHandler.php

@@ -1,19 +1,18 @@
 <?php
-// JsonContentHandler.php
+// JsonHttpContentHandler.php
 // Created: 2024-03-28
 // Updated: 2024-10-02
 
-namespace Index\Http\ContentHandling;
+namespace Index\Json;
 
 use stdClass;
 use JsonSerializable;
-use Index\Http\HttpResponseBuilder;
-use Index\Http\Content\JsonContent;
+use Index\Http\{HttpContentHandler,HttpResponseBuilder};
 
 /**
  * Represents a JSON content handler for building HTTP response messages.
  */
-class JsonContentHandler implements ContentHandler {
+class JsonHttpContentHandler implements HttpContentHandler {
     public function match(mixed $content): bool {
         return is_array($content) || $content instanceof JsonSerializable || $content instanceof stdClass;
     }
@@ -22,6 +21,6 @@ class JsonContentHandler implements ContentHandler {
         if(!$response->hasContentType())
             $response->setTypeJson();
 
-        $response->setContent(new JsonContent($content));
+        $response->setContent(new JsonHttpContent($content));
     }
 }

src/Syndication/FeedBuilder.php

@@ -0,0 +1,147 @@
+<?php
+// FeedBuilder.php
+// Created: 2024-10-02
+// Updated: 2024-10-03
+
+namespace Index\Syndication;
+
+use DateTimeInterface;
+use DOMDocument;
+use Stringable;
+use RuntimeException;
+use Index\{XDateTime,XString};
+
+/**
+ * Provides an RSS feed builder with Atom extensions.
+ */
+class FeedBuilder implements Stringable {
+    private string $title = 'Feed';
+    private string $description = '';
+    private string $updatedAt = '';
+    private string $contentUrl = '';
+    private string $feedUrl = '';
+
+    /** @var FeedItemBuilder[] */
+    private array $items = [];
+
+    /**
+     * Sets the title of the feed.
+     *
+     * @param string $title Feed title.
+     */
+    public function setTitle(string $title): void {
+        $this->title = $title;
+    }
+
+    /**
+     * Sets the description of the feed, may contain HTML.
+     *
+     * @param string $description Feed description.
+     */
+    public function setDescription(string $description): void {
+        $this->description = $description;
+    }
+
+    /**
+     * Sets the last updated time for this feed.
+     *
+     * @param DateTimeInterface|int $updatedAt Timestamp at which the feed was last updated.
+     */
+    public function setUpdatedAt(DateTimeInterface|int $updatedAt): void {
+        $this->updatedAt = XDateTime::toRfc822String($updatedAt);
+    }
+
+    /**
+     * Sets the URL to the content this feed represents.
+     *
+     * @param string $url Content URL.
+     */
+    public function setContentUrl(string $url): void {
+        $this->contentUrl = $url;
+    }
+
+    /**
+     * Sets the URL to this feed's XML file.
+     *
+     * @param string $url Feed XML URL.
+     */
+    public function setFeedUrl(string $url): void {
+        $this->feedUrl = $url;
+    }
+
+    /**
+     * Creates a feed item using a builder.
+     *
+     * @param callable(FeedItemBuilder): void $handler Item builder closure.
+     */
+    public function createEntry(callable $handler): void {
+        $builder = new FeedItemBuilder;
+        $handler($builder);
+        $this->items[] = $builder;
+    }
+
+    /**
+     * Creates a DOMDocument from this builder.
+     *
+     * @return DOMDocument XML document representing this feed.
+     */
+    public function toXmlDocument(): DOMDocument {
+        $document = new DOMDocument('1.0', 'UTF-8');
+        $document->preserveWhiteSpace = false;
+        $document->formatOutput = true;
+
+        $rss = $document->createElement('rss');
+        $rss->setAttribute('version', '2.0');
+        $rss->setAttribute('xmlns:atom', 'http://www.w3.org/2005/Atom');
+        $document->appendChild($rss);
+
+        $channel = $document->createElement('channel');
+
+        $elements = [
+            'title' => $this->title,
+            'pubDate' => $this->updatedAt,
+            'link' => $this->contentUrl,
+        ];
+        foreach($elements as $elemName => $elemValue)
+            if(!XString::nullOrWhitespace($elemValue))
+                $channel->appendChild($document->createElement($elemName, $elemValue));
+
+        if(!XString::nullOrWhitespace($this->description)) {
+            $description = $document->createElement('description');
+            $description->appendChild($document->createCDATASection($this->description));
+            $channel->appendChild($description);
+        }
+
+        if(!XString::nullOrWhitespace($this->feedUrl)) {
+            $element = $document->createElement('atom:link');
+            $element->setAttribute('href', $this->feedUrl);
+            $element->setAttribute('ref', 'self');
+            $element->setAttribute('type', 'application/rss+xml');
+            $channel->appendChild($element);
+        }
+
+        foreach($this->items as $item)
+            $channel->appendChild($item->createElement($document));
+
+        $rss->appendChild($channel);
+
+        return $document;
+    }
+
+    /**
+     * Converts the XML Document to a printable string.
+     *
+     * @return string Printable XML document.
+     */
+    public function toXmlString(): string {
+        $string = $this->toXmlDocument()->saveXML();
+        if($string === false)
+            $string = '';
+
+        return $string;
+    }
+
+    public function __toString(): string {
+        return $this->toXmlString();
+    }
+}

src/Syndication/FeedItemBuilder.php

@@ -0,0 +1,137 @@
+<?php
+// FeedItemBuilder.php
+// Created: 2024-10-02
+// Updated: 2024-10-03
+
+namespace Index\Syndication;
+
+use DateTimeInterface;
+use DOMDocument;
+use DOMElement;
+use Index\{XDateTime,XString};
+
+/**
+ * Provides an RSS feed item builder with Atom extensions.
+ */
+class FeedItemBuilder {
+    private string $title = 'Feed Item';
+    private string $description = '';
+    private string $createdAt = '';
+    private string $updatedAt = '';
+    private string $contentUrl = '';
+    private string $commentsUrl = '';
+    private string $authorName = '';
+    private string $authorUrl = '';
+
+    /**
+     * Sets the title of this feed item.
+     *
+     * @param string $title Item title.
+     */
+    public function setTitle(string $title): void {
+        $this->title = $title;
+    }
+
+    /**
+     * Sets the description of the feed item, may contain HTML.
+     *
+     * @param string $description Item description.
+     */
+    public function setDescription(string $description): void {
+        $this->description = $description;
+    }
+
+    /**
+     * Sets the creation time for this feed item.
+     *
+     * @param DateTimeInterface|int $createdAt Timestamp at which the feed item was created.
+     */
+    public function setCreatedAt(DateTimeInterface|int $createdAt): void {
+        $this->createdAt = XDateTime::toRfc822String($createdAt);
+    }
+
+    /**
+     * Sets the last updated time for this feed item.
+     *
+     * @param DateTimeInterface|int $updatedAt Timestamp at which the feed item was last updated.
+     */
+    public function setUpdatedAt(DateTimeInterface|int $updatedAt): void {
+        $this->updatedAt = XDateTime::toIso8601String($updatedAt);
+    }
+
+    /**
+     * Sets the URL to the content this feed item represents.
+     *
+     * @param string $url Content URL.
+     */
+    public function setContentUrl(string $url): void {
+        $this->contentUrl = $url;
+    }
+
+    /**
+     * Sets the URL to where comments can be made on the content this feed item represents.
+     *
+     * @param string $url Comments URL.
+     */
+    public function setCommentsUrl(string $url): void {
+        $this->commentsUrl = $url;
+    }
+
+    /**
+     * Sets the name of the author of this feed item.
+     *
+     * @param string $name Name of the author.
+     */
+    public function setAuthorName(string $name): void {
+        $this->authorName = $name;
+    }
+
+    /**
+     * Sets the URL for the author of this feed item. Has no effect if no author name is provided.
+     *
+     * @param string $url URL for the author.
+     */
+    public function setAuthorUrl(string $url): void {
+        $this->authorUrl = $url;
+    }
+
+    /**
+     * Creates an XML document based on this item builder.
+     *
+     * @param DOMDocument $document Document to which this element is to be appended.
+     * @return DOMElement Element created from this builder.
+     */
+    public function createElement(DOMDocument $document): DOMElement {
+        $item = $document->createElement('item');
+
+        $elements = [
+            'title' => $this->title,
+            'pubDate' => $this->createdAt,
+            'atom:updated' => $this->updatedAt,
+            'link' => $this->contentUrl,
+            'guid' => $this->contentUrl,
+            'comments' => $this->commentsUrl,
+        ];
+        foreach($elements as $elemName => $elemValue)
+            if(!XString::nullOrWhitespace($elemValue))
+                $item->appendChild($document->createElement($elemName, $elemValue));
+
+        if(!XString::nullOrWhitespace($this->description)) {
+            $description = $document->createElement('description');
+            $description->appendChild($document->createCDATASection($this->description));
+            $item->appendChild($description);
+        }
+
+        if(!XString::nullOrWhitespace($this->authorName)) {
+            $author = $document->createElement('atom:author');
+            $author->appendChild($document->createElement('atom:name', $this->authorName));
+
+            if(!XString::nullOrWhitespace($this->authorUrl))
+                $author->appendChild($document->createElement('atom:uri', $this->authorUrl));
+
+            $item->appendChild($author);
+        }
+
+        return $item;
+    }
+}

tests/DbToolsTest.php

@@ -11,21 +11,27 @@ use Index\Data\{DbTools,DbType};
 use Index\Data\MariaDb\MariaDbBackend;
 use Index\Data\NullDb\NullDbConnection;
 use Index\Data\Sqlite\SqliteBackend;
-use Index\Io\MemoryStream;
 
 #[CoversClass(DbTools::class)]
 #[CoversClass(DbType::class)]
 #[CoversClass(NullDbConnection::class)]
 #[CoversClass(MariaDbBackend::class)]
 #[CoversClass(SqliteBackend::class)]
-#[UsesClass(MemoryStream::class)]
 final class DbToolsTest extends TestCase {
     public function testDetectType(): void {
         $this->assertEquals(DbType::NULL, DbTools::detectType(null));
         $this->assertEquals(DbType::INTEGER, DbTools::detectType(12345));
         $this->assertEquals(DbType::FLOAT, DbTools::detectType(123.45));
         $this->assertEquals(DbType::STRING, DbTools::detectType('This is a string.'));
-        $this->assertEquals(DbType::BLOB, DbTools::detectType(MemoryStream::fromString('This is a string inside a memory stream.')));
+
+        $blob = fopen('php://memory', 'r+b');
+        if($blob === false)
+            throw new RuntimeException('failed to fopen a memory stream');
+
+        fwrite($blob, 'This is a string inside a memory stream.');
+        fseek($blob, 0);
+
+        $this->assertEquals(DbType::BLOB, DbTools::detectType($blob));
     }
 
     public function testDSN(): void {

tests/SyndicationTest.php

@@ -0,0 +1,132 @@
+<?php
+// SyndicationTest.php
+// Created: 2024-10-03
+// Updated: 2024-10-03
+
+declare(strict_types=1);
+
+use PHPUnit\Framework\TestCase;
+use PHPUnit\Framework\Attributes\CoversClass;
+use Index\Syndication\{FeedBuilder,FeedItemBuilder};
+
+#[CoversClass(FeedBuilder::class)]
+#[CoversClass(FeedItemBuilder::class)]
+final class SyndicationTest extends TestCase {
+    private const BLANK_FEED = <<<XML
+    <?xml version="1.0" encoding="UTF-8"?>
+    <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+      <channel>
+        <title>Feed</title>
+      </channel>
+    </rss>
+
+    XML;
+
+    private const NO_ITEMS_FEED = <<<XML
+    <?xml version="1.0" encoding="UTF-8"?>
+    <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+      <channel>
+        <title>Index RSS</title>
+        <pubDate>Thu, 03 Oct 24 20:06:25 +0000</pubDate>
+        <link>https://example.railgun.sh/articles</link>
+        <description><![CDATA[<b>This should accept HTML!</b>]]></description>
+        <atom:link href="https://example.railgun.sh/feed.xml" ref="self" type="application/rss+xml"/>
+      </channel>
+    </rss>
+
+    XML;
+
+    private const ITEMS_FEED = <<<XML
+    <?xml version="1.0" encoding="UTF-8"?>
+    <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+      <channel>
+        <title>Index RSS</title>
+        <pubDate>Thu, 03 Oct 24 20:06:25 +0000</pubDate>
+        <link>https://example.railgun.sh/articles</link>
+        <description><![CDATA[<b>This should accept HTML!</b>]]></description>
+        <atom:link href="https://example.railgun.sh/feed.xml" ref="self" type="application/rss+xml"/>
+        <item>
+          <title>Article 1</title>
+          <pubDate>Sat, 28 Sep 24 01:13:05 +0000</pubDate>
+          <link>https://example.railgun.sh/articles/1</link>
+          <guid>https://example.railgun.sh/articles/1</guid>
+          <comments>https://example.railgun.sh/articles/1#comments</comments>
+          <description><![CDATA[<p>This is an article!</p>
+    <p>It has <b>HTML</b> and <em>multiple lines</em> and all that <u>awesome</u> stuff!!!!</p>
+    <h2>Meaning it can also have sections</h2>
+    <p>Technology is so cool...</p>]]></description>
+          <atom:author>
+            <atom:name>flashwave</atom:name>
+            <atom:uri>https://example.railgun.sh/author/1</atom:uri>
+          </atom:author>
+        </item>
+        <item>
+          <title>Article 2</title>
+          <pubDate>Sun, 29 Sep 24 04:59:45 +0000</pubDate>
+          <link>https://example.railgun.sh/articles/2</link>
+          <guid>https://example.railgun.sh/articles/2</guid>
+          <comments>https://example.railgun.sh/articles/2#comments</comments>
+          <description><![CDATA[<p>hidden author spooky</p>]]></description>
+        </item>
+        <item>
+          <title>Article 3 without a description</title>
+          <pubDate>Mon, 30 Sep 24 08:46:25 +0000</pubDate>
+          <link>https://example.railgun.sh/articles/3</link>
+          <guid>https://example.railgun.sh/articles/3</guid>
+          <comments>https://example.railgun.sh/articles/3#comments</comments>
+          <atom:author>
+            <atom:name>Anonymous</atom:name>
+          </atom:author>
+        </item>
+      </channel>
+    </rss>
+
+    XML;
+
+    public function testFeedBuilder(): void {
+        $feed = new FeedBuilder;
+
+        $this->assertEquals(self::BLANK_FEED, $feed->toXmlString());
+
+        $feed->setTitle('Index RSS');
+        $feed->setDescription('<b>This should accept HTML!</b>');
+        $feed->setUpdatedAt(1727985985);
+        $feed->setContentUrl('https://example.railgun.sh/articles');
+        $feed->setFeedUrl('https://example.railgun.sh/feed.xml');
+
+        $this->assertEquals(self::NO_ITEMS_FEED, $feed->toXmlString());
+
+        $feed->createEntry(function($item) {
+            $item->setTitle('Article 1');
+            $item->setDescription(<<<HTML
+            <p>This is an article!</p>
+            <p>It has <b>HTML</b> and <em>multiple lines</em> and all that <u>awesome</u> stuff!!!!</p>
+            <h2>Meaning it can also have sections</h2>
+            <p>Technology is so cool...</p>
+            HTML);
+            $item->setCreatedAt(1727485985);
+            $item->setContentUrl('https://example.railgun.sh/articles/1');
+            $item->setCommentsUrl('https://example.railgun.sh/articles/1#comments');
+            $item->setAuthorName('flashwave');
+            $item->setAuthorUrl('https://example.railgun.sh/author/1');
+        });
+        $feed->createEntry(function($item) {
+            $item->setTitle('Article 2');
+            $item->setDescription(<<<HTML
+            <p>hidden author spooky</p>
+            HTML);
+            $item->setCreatedAt(1727585985);
+            $item->setContentUrl('https://example.railgun.sh/articles/2');
+            $item->setCommentsUrl('https://example.railgun.sh/articles/2#comments');
+        });
+        $feed->createEntry(function($item) {
+            $item->setTitle('Article 3 without a description');
+            $item->setCreatedAt(1727685985);
+            $item->setContentUrl('https://example.railgun.sh/articles/3');
+            $item->setCommentsUrl('https://example.railgun.sh/articles/3#comments');
+            $item->setAuthorName('Anonymous');
+        });
+
+        $this->assertEquals(self::ITEMS_FEED, $feed->toXmlString());
+    }
+}