Clean up

.gitignore

@@ -124,3 +124,10 @@ coverage
 tempConv
 extracted.json
 .phpunit.result.cache
+
+src/danog/MadelineProto/VoIP.php
+src/danog/MadelineProto/VoIP/AckHandler.php
+src/danog/MadelineProto/VoIP/MessageHandler.php
+src/danog/MadelineProto/OpusStream.php
+
+ponyScripts

.phan/config.php

@@ -0,0 +1,356 @@
+<?php
+
+use Phan\Issue;
+
+/**
+ * This configuration file was automatically generated by 'phan --init --init-level=3'
+ *
+ * TODOs (added by 'phan --init'):
+ *
+ * - Go through this file and verify that there are no missing/unnecessary files/directories.
+ *   (E.g. this only includes direct composer dependencies - You may have to manually add indirect composer dependencies to 'directory_list')
+ * - Look at 'plugins' and add or remove plugins if appropriate (see https://github.com/phan/phan/tree/master/.phan/plugins#plugins)
+ * - Add global suppressions for pre-existing issues to suppress_issue_types (https://github.com/phan/phan/wiki/Tutorial-for-Analyzing-a-Large-Sloppy-Code-Base)
+ *
+ * This configuration will be read and overlaid on top of the
+ * default configuration. Command line arguments will be applied
+ * after this file is read.
+ *
+ * @see src/Phan/Config.php
+ * See Config for all configurable options.
+ *
+ * A Note About Paths
+ * ==================
+ *
+ * Files referenced from this file should be defined as
+ *
+ * ```
+ *   Config::projectPath('relative_path/to/file')
+ * ```
+ *
+ * where the relative path is relative to the root of the
+ * project which is defined as either the working directory
+ * of the phan executable or a path passed in via the CLI
+ * '-d' flag.
+ */
+return [
+
+    // Supported values: `'5.6'`, `'7.0'`, `'7.1'`, `'7.2'`, `'7.3'`, `'7.4'`, `null`.
+    // If this is set to `null`,
+    // then Phan assumes the PHP version which is closest to the minor version
+    // of the php executable used to execute Phan.
+    //
+    // Note that the **only** effect of choosing `'5.6'` is to infer that functions removed in php 7.0 exist.
+    // (See `backward_compatibility_checks` for additional options)
+    // Automatically inferred from composer.json requirement for "php" of ">=7.4.0"
+    'target_php_version' => '7.4',
+
+    // If enabled, missing properties will be created when
+    // they are first seen. If false, we'll report an
+    // error message if there is an attempt to write
+    // to a class property that wasn't explicitly
+    // defined.
+    'allow_missing_properties' => false,
+
+    // If enabled, null can be cast to any type and any
+    // type can be cast to null. Setting this to true
+    // will cut down on false positives.
+    'null_casts_as_any_type' => false,
+
+    // If enabled, allow null to be cast as any array-like type.
+    //
+    // This is an incremental step in migrating away from `null_casts_as_any_type`.
+    // If `null_casts_as_any_type` is true, this has no effect.
+    'null_casts_as_array' => true,
+
+    // If enabled, allow any array-like type to be cast to null.
+    // This is an incremental step in migrating away from `null_casts_as_any_type`.
+    // If `null_casts_as_any_type` is true, this has no effect.
+    'array_casts_as_null' => true,
+
+    // If enabled, scalars (int, float, bool, string, null)
+    // are treated as if they can cast to each other.
+    // This does not affect checks of array keys. See `scalar_array_key_cast`.
+    'scalar_implicit_cast' => false,
+
+    // If enabled, any scalar array keys (int, string)
+    // are treated as if they can cast to each other.
+    // E.g. `array<int,stdClass>` can cast to `array<string,stdClass>` and vice versa.
+    // Normally, a scalar type such as int could only cast to/from int and mixed.
+    'scalar_array_key_cast' => true,
+
+    // If this has entries, scalars (int, float, bool, string, null)
+    // are allowed to perform the casts listed.
+    //
+    // E.g. `['int' => ['float', 'string'], 'float' => ['int'], 'string' => ['int'], 'null' => ['string']]`
+    // allows casting null to a string, but not vice versa.
+    // (subset of `scalar_implicit_cast`)
+    'scalar_implicit_partial' => [],
+
+    // If enabled, Phan will warn if **any** type in a method invocation's object
+    // is definitely not an object,
+    // or if **any** type in an invoked expression is not a callable.
+    // Setting this to true will introduce numerous false positives
+    // (and reveal some bugs).
+    'strict_method_checking' => false,
+
+    // If enabled, Phan will warn if **any** type of the object expression for a property access
+    // does not contain that property.
+    'strict_object_checking' => false,
+
+    // If enabled, Phan will warn if **any** type in the argument's union type
+    // cannot be cast to a type in the parameter's expected union type.
+    // Setting this to true will introduce numerous false positives
+    // (and reveal some bugs).
+    'strict_param_checking' => false,
+
+    // If enabled, Phan will warn if **any** type in a property assignment's union type
+    // cannot be cast to a type in the property's declared union type.
+    // Setting this to true will introduce numerous false positives
+    // (and reveal some bugs).
+    'strict_property_checking' => false,
+
+    // If enabled, Phan will warn if **any** type in a returned value's union type
+    // cannot be cast to the declared return type.
+    // Setting this to true will introduce numerous false positives
+    // (and reveal some bugs).
+    'strict_return_checking' => false,
+
+    // If true, seemingly undeclared variables in the global
+    // scope will be ignored.
+    //
+    // This is useful for projects with complicated cross-file
+    // globals that you have no hope of fixing.
+    'ignore_undeclared_variables_in_global_scope' => true,
+
+    // Set this to false to emit `PhanUndeclaredFunction` issues for internal functions that Phan has signatures for,
+    // but aren't available in the codebase, or from Reflection.
+    // (may lead to false positives if an extension isn't loaded)
+    //
+    // If this is true(default), then Phan will not warn.
+    //
+    // Even when this is false, Phan will still infer return values and check parameters of internal functions
+    // if Phan has the signatures.
+    'ignore_undeclared_functions_with_known_signatures' => true,
+
+    // Backwards Compatibility Checking. This is slow
+    // and expensive, but you should consider running
+    // it before upgrading your version of PHP to a
+    // new version that has backward compatibility
+    // breaks.
+    //
+    // If you are migrating from PHP 5 to PHP 7,
+    // you should also look into using
+    // [php7cc (no longer maintained)](https://github.com/sstalle/php7cc)
+    // and [php7mar](https://github.com/Alexia/php7mar),
+    // which have different backwards compatibility checks.
+    'backward_compatibility_checks' => false,
+
+    // If true, check to make sure the return type declared
+    // in the doc-block (if any) matches the return type
+    // declared in the method signature.
+    'check_docblock_signature_return_type_match' => false,
+
+    // This setting maps case-insensitive strings to union types.
+    //
+    // This is useful if a project uses phpdoc that differs from the phpdoc2 standard.
+    //
+    // If the corresponding value is the empty string,
+    // then Phan will ignore that union type (E.g. can ignore 'the' in `@return the value`)
+    //
+    // If the corresponding value is not empty,
+    // then Phan will act as though it saw the corresponding UnionTypes(s)
+    // when the keys show up in a UnionType of `@param`, `@return`, `@var`, `@property`, etc.
+    //
+    // This matches the **entire string**, not parts of the string.
+    // (E.g. `@return the|null` will still look for a class with the name `the`, but `@return the` will be ignored with the below setting)
+    //
+    // (These are not aliases, this setting is ignored outside of doc comments).
+    // (Phan does not check if classes with these names exist)
+    //
+    // Example setting: `['unknown' => '', 'number' => 'int|float', 'char' => 'string', 'long' => 'int', 'the' => '']`
+    'phpdoc_type_mapping' => [],
+
+    // Set to true in order to attempt to detect dead
+    // (unreferenced) code. Keep in mind that the
+    // results will only be a guess given that classes,
+    // properties, constants and methods can be referenced
+    // as variables (like `$class->$property` or
+    // `$class->$method()`) in ways that we're unable
+    // to make sense of.
+    'dead_code_detection' => false,
+
+    // Set to true in order to attempt to detect unused variables.
+    // `dead_code_detection` will also enable unused variable detection.
+    //
+    // This has a few known false positives, e.g. for loops or branches.
+    'unused_variable_detection' => false,
+
+    // Set to true in order to attempt to detect redundant and impossible conditions.
+    //
+    // This has some false positives involving loops,
+    // variables set in branches of loops, and global variables.
+    'redundant_condition_detection' => false,
+
+    // If enabled, Phan will act as though it's certain of real return types of a subset of internal functions,
+    // even if those return types aren't available in reflection (real types were taken from php 7.3 or 8.0-dev, depending on target_php_version).
+    //
+    // Note that with php 7 and earlier, php would return null or false for many internal functions if the argument types or counts were incorrect.
+    // As a result, enabling this setting with target_php_version 8.0 may result in false positives for `--redundant-condition-detection` when codebases also support php 7.x.
+    'assume_real_types_for_internal_functions' => false,
+
+    // If true, this runs a quick version of checks that takes less
+    // time at the cost of not running as thorough
+    // of an analysis. You should consider setting this
+    // to true only when you wish you had more **undiagnosed** issues
+    // to fix in your code base.
+    //
+    // In quick-mode the scanner doesn't rescan a function
+    // or a method's code block every time a call is seen.
+    // This means that the problem here won't be detected:
+    //
+    // ```php
+    // <?php
+    // function test($arg):int {
+    //     return $arg;
+    // }
+    // test("abc");
+    // ```
+    //
+    // This would normally generate:
+    //
+    // ```
+    // test.php:3 PhanTypeMismatchReturn Returning type string but test() is declared to return int
+    // ```
+    //
+    // The initial scan of the function's code block has no
+    // type information for `$arg`. It isn't until we see
+    // the call and rescan `test()`'s code block that we can
+    // detect that it is actually returning the passed in
+    // `string` instead of an `int` as declared.
+    'quick_mode' => false,
+
+    // Override to hardcode existence and types of (non-builtin) globals in the global scope.
+    // Class names should be prefixed with `\`.
+    //
+    // (E.g. `['_FOO' => '\FooClass', 'page' => '\PageClass', 'userId' => 'int']`)
+    'globals_type_map' => [],
+
+    // The minimum severity level to report on. This can be
+    // set to `Issue::SEVERITY_LOW`, `Issue::SEVERITY_NORMAL` or
+    // `Issue::SEVERITY_CRITICAL`. Setting it to only
+    // critical issues is a good place to start on a big
+    // sloppy mature code base.
+    'minimum_severity' => Issue::SEVERITY_LOW,
+
+    // Add any issue types (such as `'PhanUndeclaredMethod'`)
+    // to this black-list to inhibit them from being reported.
+    'suppress_issue_types' => [],
+
+    // A regular expression to match files to be excluded
+    // from parsing and analysis and will not be read at all.
+    //
+    // This is useful for excluding groups of test or example
+    // directories/files, unanalyzable files, or files that
+    // can't be removed for whatever reason.
+    // (e.g. `'@Test\.php$@'`, or `'@vendor/.*/(tests|Tests)/@'`)
+    'exclude_file_regex' => '@^vendor/.*/(tests?|Tests?)/@',
+
+    // A list of files that will be excluded from parsing and analysis
+    // and will not be read at all.
+    //
+    // This is useful for excluding hopelessly unanalyzable
+    // files that can't be removed for whatever reason.
+    'exclude_file_list' => [],
+
+    // A directory list that defines files that will be excluded
+    // from static analysis, but whose class and method
+    // information should be included.
+    //
+    // Generally, you'll want to include the directories for
+    // third-party code (such as "vendor/") in this list.
+    //
+    // n.b.: If you'd like to parse but not analyze 3rd
+    //       party code, directories containing that code
+    //       should be added to the `directory_list` as well as
+    //       to `exclude_analysis_directory_list`.
+    'exclude_analysis_directory_list' => [
+        'vendor/',
+    ],
+
+    // Enable this to enable checks of require/include statements referring to valid paths.
+    // The settings `include_paths` and `warn_about_relative_include_statement` affect the checks.
+    'enable_include_path_checks' => true,
+
+    // The number of processes to fork off during the analysis
+    // phase.
+    'processes' => 1,
+
+    // List of case-insensitive file extensions supported by Phan.
+    // (e.g. `['php', 'html', 'htm']`)
+    'analyzed_file_extensions' => [
+        'php',
+    ],
+
+    // You can put paths to stubs of internal extensions in this config option.
+    // If the corresponding extension is **not** loaded, then Phan will use the stubs instead.
+    // Phan will continue using its detailed type annotations,
+    // but load the constants, classes, functions, and classes (and their Reflection types)
+    // from these stub files (doubling as valid php files).
+    // Use a different extension from php to avoid accidentally loading these.
+    // The `tools/make_stubs` script can be used to generate your own stubs (compatible with php 7.0+ right now)
+    //
+    // (e.g. `['xdebug' => '.phan/internal_stubs/xdebug.phan_php']`)
+    'autoload_internal_extension_signatures' => [],
+
+    // A list of plugin files to execute.
+    //
+    // Plugins which are bundled with Phan can be added here by providing their name (e.g. `'AlwaysReturnPlugin'`)
+    //
+    // Documentation about available bundled plugins can be found [here](https://github.com/phan/phan/tree/master/.phan/plugins).
+    //
+    // Alternately, you can pass in the full path to a PHP file with the plugin's implementation (e.g. `'vendor/phan/phan/.phan/plugins/AlwaysReturnPlugin.php'`)
+    'plugins' => [
+        'AlwaysReturnPlugin',
+        'PregRegexCheckerPlugin',
+        'UnreachableCodePlugin',
+    ],
+
+    // A list of directories that should be parsed for class and
+    // method information. After excluding the directories
+    // defined in `exclude_analysis_directory_list`, the remaining
+    // files will be statically analyzed for errors.
+    //
+    // Thus, both first-party and third-party code being used by
+    // your application should be included in this list.
+    'directory_list' => [
+        'src/danog/MadelineProto',
+        'vendor/amphp/amp/lib',
+        'vendor/amphp/byte-stream/lib',
+        'vendor/amphp/dns/lib',
+        'vendor/amphp/file/src',
+        'vendor/amphp/http-client-cookies/src',
+        'vendor/amphp/http-client/src',
+        'vendor/amphp/http-server/src',
+        'vendor/amphp/http/src',
+        'vendor/amphp/php-cs-fixer-config/src',
+        'vendor/amphp/socket/src',
+        'vendor/amphp/websocket-client/src',
+        'vendor/amphp/websocket/src',
+        'vendor/danog/7to5/src',
+        'vendor/danog/7to70/src',
+        'vendor/danog/dns-over-https/lib',
+        'vendor/danog/ipc/lib',
+        'vendor/danog/magicalserializer/src',
+        'vendor/danog/primemodule/lib',
+        'vendor/danog/tg-file-decoder/src',
+        'vendor/danog/tgseclib/phpseclib',
+        'vendor/erusev/parsedown',
+        'vendor/league/uri/src'
+    ],
+
+    // A list of individual files to include in analysis
+    // with a path relative to the root directory of the
+    // project.
+    'file_list' => [],
+];

composer.json

@@ -33,7 +33,8 @@
         "danog/magicalserializer": "^1.0",
         "league/uri": "^6",
         "danog/ipc": "^0.1",
-        "tivie/htaccess-parser": "^0.2.3"
+        "tivie/htaccess-parser": "^0.2.3",
+        "amphp/log": "^1.1"
     },
     "require-dev": {
         "vlucas/phpdotenv": "^3",

examples/bot.php

@@ -102,7 +102,7 @@ $settings = [
     ],
     'serialization' => [
         'serialization_interval' => 30,
-    ],
+    ]
 ];
 
 $MadelineProto = new API('bot.madeline', $settings);

legacy/danog/MadelineProto/Server.php

@@ -0,0 +1,102 @@
+<?php
+
+/**
+ * Server module.
+ *
+ * This file is part of MadelineProto.
+ * MadelineProto is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ * MadelineProto is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU Affero General Public License for more details.
+ * You should have received a copy of the GNU General Public License along with MadelineProto.
+ * If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @author    Daniil Gentili <daniil@daniil.it>
+ * @copyright 2016-2020 Daniil Gentili <daniil@daniil.it>
+ * @license   https://opensource.org/licenses/AGPL-3.0 AGPLv3
+ *
+ * @link https://docs.madelineproto.xyz MadelineProto documentation
+ */
+
+namespace danog\MadelineProto;
+
+/*
+ * Socket server for multi-language API
+ */
+class Server
+{
+    private $settings;
+    private $pids = [];
+    private $mypid;
+    public function __construct($settings)
+    {
+        \set_error_handler(['\\danog\\MadelineProto\\Exception', 'ExceptionErrorHandler']);
+        \danog\MadelineProto\Logger::constructor(3);
+        if (!\extension_loaded('sockets')) {
+            throw new Exception(['extension', 'sockets']);
+        }
+        if (!\extension_loaded('pcntl')) {
+            throw new Exception(['extension', 'pcntl']);
+        }
+        $this->settings = $settings;
+        $this->mypid = \getmypid();
+    }
+    public function start()
+    {
+        \pcntl_signal(SIGTERM, [$this, 'sigHandler']);
+        \pcntl_signal(SIGINT, [$this, 'sigHandler']);
+        \pcntl_signal(SIGCHLD, [$this, 'sigHandler']);
+        $this->sock = new \Socket($this->settings['type'], SOCK_STREAM, $this->settings['protocol']);
+        $this->sock->bind($this->settings['address'], $this->settings['port']);
+        $this->sock->listen();
+        $this->sock->setBlocking(true);
+        $timeout = 2;
+        $this->sock->setOption(\SOL_SOCKET, \SO_RCVTIMEO, $timeout);
+        $this->sock->setOption(\SOL_SOCKET, \SO_SNDTIMEO, $timeout);
+        \danog\MadelineProto\Logger::log('Server started! Listening on ' . $this->settings['address'] . ':' . $this->settings['port']);
+        while (true) {
+            \pcntl_signal_dispatch();
+            try {
+                if ($sock = $this->sock->accept()) {
+                    $this->handle($sock);
+                }
+            } catch (\danog\MadelineProto\Exception $e) {
+            }
+        }
+    }
+    private function handle($socket)
+    {
+        $pid = \pcntl_fork();
+        if ($pid == -1) {
+            die('could not fork');
+        } elseif ($pid) {
+            return $this->pids[] = $pid;
+        }
+        $handler = new $this->settings['handler']($socket, $this->settings['extra'], null, null, null, null, null);
+        $handler->loop();
+        die;
+    }
+    public function __destruct()
+    {
+        if ($this->mypid === \getmypid()) {
+            \danog\MadelineProto\Logger::log('Shutting main process ' . $this->mypid . ' down');
+            unset($this->sock);
+            foreach ($this->pids as $pid) {
+                \danog\MadelineProto\Logger::log("Waiting for {$pid}");
+                \pcntl_wait($pid);
+            }
+            \danog\MadelineProto\Logger::log('Done, closing main process');
+            return;
+        }
+    }
+    public function sigHandler($sig)
+    {
+        switch ($sig) {
+            case SIGTERM:
+            case SIGINT:
+                exit;
+            case SIGCHLD:
+                \pcntl_waitpid(-1, $status);
+                break;
+        }
+    }
+}

psalm.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+<psalm
+    totallyTyped="false"
+    errorLevel="6"
+    resolveFromConfigFile="true"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xmlns="https://getpsalm.org/schema/config"
+    xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
+>
+    <projectFiles>
+        <directory name="src" />
+        <ignoreFiles>
+            <directory name="vendor" />
+            <file name="src/danog/MadelineProto/InternalDoc.php" />
+            <file name="src/danog/MadelineProto/TON/InternalDoc.php" />
+        </ignoreFiles>
+    </projectFiles>
+</psalm>

src/danog/MadelineProto/API.php

@@ -271,7 +271,7 @@ class API extends InternalDoc
      *
      * @return \Generator
      */
-    private function startAndLoopAsync(string $eventHandler): \Generator
+    public function startAndLoopAsync(string $eventHandler): \Generator
     {
         $this->async(true);
         while (true) {

src/danog/MadelineProto/DataCenter.php

@@ -39,6 +39,7 @@ use Amp\Websocket\Client\Rfc6455Connector;
 use danog\MadelineProto\MTProto\PermAuthKey;
 use danog\MadelineProto\MTProto\TempAuthKey;
 use danog\MadelineProto\Stream\Common\BufferedRawStream;
+use danog\MadelineProto\Stream\Common\UdpBufferedStream;
 use danog\MadelineProto\Stream\ConnectionContext;
 use danog\MadelineProto\Stream\MTProtoTransport\AbridgedStream;
 use danog\MadelineProto\Stream\MTProtoTransport\FullStream;
@@ -212,7 +213,7 @@ class DataCenter
         $this->settings = $settings;
         foreach ($this->sockets as $key => $socket) {
             if ($socket instanceof DataCenterConnection && !\strpos($key, '_bk')) {
-                //$this->API->logger->logger(\sprintf(Lang::$current_lang['dc_con_stop'], $key), \danog\MadelineProto\Logger::VERBOSE);
+                //$this->API->logger->logger(\sprintf(Lang::$current_lang['dc_con_stop'], $key), Logger::VERBOSE);
                 if ($reconnectAll || isset($changed[$id])) {
                     $this->API->logger->logger("Disconnecting all before reconnect!");
                     $socket->needReconnect(true);
@@ -238,6 +239,24 @@ class DataCenter
             }
         }
     }
+    /**
+     * Set VoIP endpoints.
+     *
+     * @param array $endpoints Endpoints
+     *
+     * @return void
+     */
+    public function setVoIPEndpoints(array $endpoints): void
+    {
+    }
+    /**
+     * Connect to specified DC.
+     *
+     * @param string  $dc_number DC to connect to
+     * @param integer $id        Connection ID to re-establish (optional)
+     *
+     * @return \Generator<bool>
+     */
     public function dcConnect(string $dc_number, int $id = -1): \Generator
     {
         $old = isset($this->sockets[$dc_number]) && ($this->sockets[$dc_number]->shouldReconnect() || $id !== -1 && $this->sockets[$dc_number]->hasConnection($id) && $this->sockets[$dc_number]->getConnection($id)->shouldReconnect());
@@ -252,30 +271,36 @@ class DataCenter
         foreach ($ctxs as $ctx) {
             try {
                 if ($old) {
-                    $this->API->logger->logger("Reconnecting to DC {$dc_number} ({$id}) from existing", \danog\MadelineProto\Logger::WARNING);
+                    $this->API->logger->logger("Reconnecting to DC {$dc_number} ({$id}) from existing", Logger::WARNING);
                     $this->sockets[$dc_number]->setExtra($this->API);
                     yield from $this->sockets[$dc_number]->connect($ctx, $id);
                 } else {
-                    $this->API->logger->logger("Connecting to DC {$dc_number} from scratch", \danog\MadelineProto\Logger::WARNING);
+                    $this->API->logger->logger("Connecting to DC {$dc_number} from scratch", Logger::WARNING);
                     $this->sockets[$dc_number] = new DataCenterConnection();
                     $this->sockets[$dc_number]->setExtra($this->API);
                     yield from $this->sockets[$dc_number]->connect($ctx);
                 }
-                $this->API->logger->logger('OK!', \danog\MadelineProto\Logger::WARNING);
+                $this->API->logger->logger('OK!', Logger::WARNING);
                 return true;
             } catch (\Throwable $e) {
                 if (@\constant("MADELINEPROTO_TEST")  === 'pony') {
                     throw $e;
                 }
-                $this->API->logger->logger("Connection failed ({$dc_number}): ".$e->getMessage(), \danog\MadelineProto\Logger::ERROR);
+                $this->API->logger->logger("Connection failed ({$dc_number}): ".$e->getMessage(), Logger::ERROR);
             }
         }
         throw new Exception("Could not connect to DC {$dc_number}");
     }
     /**
-     * @param int|string $dc_number
+     * Generate contexts.
+     *
+     * @param integer        $dc_number DC ID to generate contexts for
+     * @param string         $uri       URI
+     * @param ConnectContext $context   Connection context
+     *
+     * @return array
      */
-    public function generateContexts($dc_number = 0, string $uri = '', ConnectContext $context = null)
+    public function generateContexts($dc_number = 0, string $uri = '', ConnectContext $context = null): array
     {
         $ctxs = [];
         $combos = [];
@@ -309,6 +334,9 @@ class DataCenter
             case 'https':
                 $default = [[DefaultStream::getName(), []], [BufferedRawStream::getName(), []], [HttpsStream::getName(), []]];
                 break;
+            case 'udp':
+                $default = [[DefaultStream::getName(), []], [UdpBufferedStream::getName(), []]];
+                break;
             default:
                 throw new Exception(Lang::$current_lang['protocol_invalid']);
         }
@@ -490,7 +518,7 @@ class DataCenter
         }
         if (empty($ctxs)) {
             unset($this->sockets[$dc_number]);
-            $this->API->logger->logger("No info for DC {$dc_number}", \danog\MadelineProto\Logger::ERROR);
+            $this->API->logger->logger("No info for DC {$dc_number}", Logger::ERROR);
         } elseif (@\constant("MADELINEPROTO_TEST")  === 'pony') {
             return [$ctxs[0]];
         }

src/danog/MadelineProto/DocsBuilder.php

@@ -621,7 +621,7 @@ class Lang
     {
         if (!isset(\danog\MadelineProto\Lang::$lang['en'][$key]) || $force) {
             \danog\MadelineProto\Lang::$lang['en'][$key] = $value;
-            \file_put_contents(__DIR__.'/Lang.php', \sprintf(self::$template, \var_export(\danog\MadelineProto\Lang::$lang, true), \var_export(\danog\MadelineProto\Lang::$lang['en'], true)));
+            //\file_put_contents(__DIR__.'/Lang.php', \sprintf(self::$template, \var_export(\danog\MadelineProto\Lang::$lang, true), \var_export(\danog\MadelineProto\Lang::$lang['en'], true)));
         }
     }
 }

src/danog/MadelineProto/Loop/Connection/ReadLoop.php

@@ -87,7 +87,7 @@ class ReadLoop extends SignalLoop
                 Tools::callForkDefer((function () use ($error, $shared, $connection, $datacenter, $API): \Generator {
                     if ($error === -404) {
                         if ($shared->hasTempAuthKey()) {
-                            $API->logger->logger("WARNING: Resetting auth key in DC {$datacenter}...", \danog\MadelineProto\Logger::WARNING);
+                            $API->logger->logger("WARNING: Resetting auth key in DC {$datacenter}...", Logger::WARNING);
                             $shared->setTempAuthKey(null);
                             $shared->resetSession();
                             foreach ($connection->new_outgoing as $message_id) {
@@ -99,13 +99,13 @@ class ReadLoop extends SignalLoop
                             yield from $connection->reconnect();
                         }
                     } elseif ($error === -1) {
-                        $API->logger->logger("WARNING: Got quick ack from DC {$datacenter}", \danog\MadelineProto\Logger::WARNING);
+                        $API->logger->logger("WARNING: Got quick ack from DC {$datacenter}", Logger::WARNING);
                         yield from $connection->reconnect();
                     } elseif ($error === 0) {
-                        $API->logger->logger("Got NOOP from DC {$datacenter}", \danog\MadelineProto\Logger::WARNING);
+                        $API->logger->logger("Got NOOP from DC {$datacenter}", Logger::WARNING);
                         yield from $connection->reconnect();
                     } elseif ($error === -429) {
-                        $API->logger->logger("Got -429 from DC {$datacenter}", \danog\MadelineProto\Logger::WARNING);
+                        $API->logger->logger("Got -429 from DC {$datacenter}", Logger::WARNING);
                         yield Tools::sleep(1);
                         yield from $connection->reconnect();
                     } else {
@@ -138,14 +138,14 @@ class ReadLoop extends SignalLoop
             $API->logger->logger($e->getReason());
             if (\strpos($e->getReason(), '       ') === 0) {
                 $payload = -\substr($e->getReason(), 7);
-                $API->logger->logger("Received {$payload} from DC ".$datacenter, \danog\MadelineProto\Logger::ERROR);
+                $API->logger->logger("Received {$payload} from DC ".$datacenter, Logger::ERROR);
                 return $payload;
             }
             throw $e;
         }
         if ($payload_length === 4) {
             $payload = \danog\MadelineProto\Tools::unpackSignedInt(yield $buffer->bufferRead(4));
-            $API->logger->logger("Received {$payload} from DC ".$datacenter, \danog\MadelineProto\Logger::ULTRA_VERBOSE);
+            $API->logger->logger("Received {$payload} from DC ".$datacenter, Logger::ULTRA_VERBOSE);
             return $payload;
         }
         $connection->reading(true);
@@ -160,9 +160,9 @@ class ReadLoop extends SignalLoop
                 $message_data = yield $buffer->bufferRead($message_length);
                 $left = $payload_length - $message_length - 4 - 8 - 8;
                 if ($left) {
-                    $API->logger->logger('Padded unencrypted message', \danog\MadelineProto\Logger::ULTRA_VERBOSE);
+                    $API->logger->logger('Padded unencrypted message', Logger::ULTRA_VERBOSE);
                     if ($left < (-$message_length & 15)) {
-                        $API->logger->logger('Protocol padded unencrypted message', \danog\MadelineProto\Logger::ULTRA_VERBOSE);
+                        $API->logger->logger('Protocol padded unencrypted message', Logger::ULTRA_VERBOSE);
                     }
                     yield $buffer->bufferRead($left);
                 }
@@ -179,7 +179,7 @@ class ReadLoop extends SignalLoop
                 /*
                                 $server_salt = substr($decrypted_data, 0, 8);
                                 if ($server_salt != $shared->getTempAuthKey()->getServerSalt()) {
-                                $API->logger->logger('WARNING: Server salt mismatch (my server salt '.$shared->getTempAuthKey()->getServerSalt().' is not equal to server server salt '.$server_salt.').', \danog\MadelineProto\Logger::WARNING);
+                                $API->logger->logger('WARNING: Server salt mismatch (my server salt '.$shared->getTempAuthKey()->getServerSalt().' is not equal to server server salt '.$server_salt.').', Logger::WARNING);
                                 }
                 */
                 $session_id = \substr($decrypted_data, 8, 8);
@@ -213,16 +213,18 @@ class ReadLoop extends SignalLoop
                 }
                 $connection->incoming_messages[$message_id] = ['seq_no' => $seq_no];
             } else {
-                $API->logger->logger('Got unknown auth_key id', \danog\MadelineProto\Logger::ERROR);
+                $API->logger->logger('Got unknown auth_key id', Logger::ERROR);
                 return -404;
             }
             $deserialized = $API->getTL()->deserialize($message_data, ['type' => '', 'connection' => $connection]);
-            $API->referenceDatabase->reset();
+            if (isset($API->referenceDatabase)) {
+                $API->referenceDatabase->reset();
+            }
             $connection->incoming_messages[$message_id]['content'] = $deserialized;
             $connection->incoming_messages[$message_id]['response'] = -1;
             $connection->new_incoming[$message_id] = $message_id;
             //$connection->last_http_wait = 0;
-            $API->logger->logger('Received payload from DC '.$datacenter, \danog\MadelineProto\Logger::ULTRA_VERBOSE);
+            $API->logger->logger('Received payload from DC '.$datacenter, Logger::ULTRA_VERBOSE);
         } finally {
             $connection->reading(false);
         }

src/danog/MadelineProto/MTProtoSession/ResponseHandler.php

@@ -349,7 +349,7 @@ trait ResponseHandler
                                 $this->methodRecall('', ['message_id' => $request_id, 'postpone' => true]);
                                 return;
                             }
-                            if (\in_array($response['error_message'], ['MSGID_DECREASE_RETRY', 'HISTORY_GET_FAILED', 'RPC_CALL_FAIL', 'PERSISTENT_TIMESTAMP_OUTDATED', 'RPC_MCGET_FAIL', 'no workers running', 'No workers running'])) {
+                            if (\in_array($response['error_message'], ['MSGID_DECREASE_RETRY', 'HISTORY_GET_FAILED', 'RPC_CONNECT_FAILED', 'RPC_CALL_FAIL', 'PERSISTENT_TIMESTAMP_OUTDATED', 'RPC_MCGET_FAIL', 'no workers running', 'No workers running'])) {
                                 Loop::delay(1 * 1000, [$this, 'methodRecall'], ['message_id' => $request_id]);
                                 return;
                             }

src/danog/MadelineProto/Stream/BufferInterface.php

@@ -19,29 +19,11 @@
 
 namespace danog\MadelineProto\Stream;
 
-use Amp\Promise;
-
 /**
  * Buffer interface.
  *
  * @author Daniil Gentili <daniil@daniil.it>
  */
-interface BufferInterface
+interface BufferInterface extends ReadBufferInterface, WriteBufferInterface
 {
-    /**
-     * Read data asynchronously.
-     *
-     * @param int $length How much data to read
-     *
-     * @return Promise
-     */
-    public function bufferRead(int $length): Promise;
-    /**
-     * Write data asynchronously.
-     *
-     * @param string $data Data to write
-     *
-     * @return Promise
-     */
-    public function bufferWrite(string $data): Promise;
 }

src/danog/MadelineProto/Stream/BufferedStreamInterface.php

@@ -33,7 +33,7 @@ interface BufferedStreamInterface extends StreamInterface
      *
      * @param int $length Length of payload, as detected by this layer
      *
-     * @return Promise
+     * @return Promise<BufferInterface>
      */
     public function getReadBuffer(&$length): Promise;
     /**

src/danog/MadelineProto/Stream/Common/BufferedRawStream.php

@@ -207,6 +207,21 @@ class BufferedRawStream implements BufferedStreamInterface, BufferInterface, Raw
         }
         return $this->write($data);
     }
+    /**
+     * Get remaining data from buffer
+     *
+     * @return string
+     */
+    public function bufferClear(): string
+    {
+        $size = \fstat($this->memory_stream)['size'];
+        $offset = \ftell($this->memory_stream);
+        $buffer_length = $size - $offset;
+        $data = fread($this->memory_stream, $buffer_length);
+        fclose($this->memory_stream);
+        $this->memory_stream = null;
+        return $data;
+    }
     /**
      * {@inheritdoc}
      *

src/danog/MadelineProto/Stream/Common/UdpBufferedStream.php

@@ -0,0 +1,201 @@
+<?php
+
+/**
+ * UDP stream wrapper.
+ *
+ * This file is part of MadelineProto.
+ * MadelineProto is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ * MadelineProto is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU Affero General Public License for more details.
+ * You should have received a copy of the GNU General Public License along with MadelineProto.
+ * If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @author    Daniil Gentili <daniil@daniil.it>
+ * @copyright 2016-2020 Daniil Gentili <daniil@daniil.it>
+ * @license   https://opensource.org/licenses/AGPL-3.0 AGPLv3
+ *
+ * @link https://docs.madelineproto.xyz MadelineProto documentation
+ */
+
+namespace danog\MadelineProto\Stream\Common;
+
+use Amp\ByteStream\ClosedException;
+use Amp\Failure;
+use Amp\Promise;
+use Amp\Socket\EncryptableSocket;
+use Amp\Success;
+use danog\MadelineProto\Exception;
+use danog\MadelineProto\Stream\Async\BufferedStream;
+use danog\MadelineProto\Stream\BufferedStreamInterface;
+use danog\MadelineProto\Stream\ConnectionContext;
+use danog\MadelineProto\Stream\RawStreamInterface;
+use danog\MadelineProto\Stream\ReadBufferInterface;
+use danog\MadelineProto\Stream\StreamInterface;
+use danog\MadelineProto\Stream\Transport\DefaultStream;
+use danog\MadelineProto\Stream\WriteBufferInterface;
+
+/**
+ * UDP stream wrapper.
+ *
+ * @author Daniil Gentili <daniil@daniil.it>
+ */
+class UdpBufferedStream extends DefaultStream implements BufferedStreamInterface
+{
+    use BufferedStream;
+    private RawStreamInterface $stream;
+    /**
+     * Connect to stream.
+     *
+     * @param ConnectionContext $ctx The connection context
+     *
+     * @return \Generator
+     */
+    public function connect(ConnectionContext $ctx, string $header = ''): \Generator
+    {
+        $this->stream = (yield from $ctx->getStream($header));
+    }
+    /**
+     * Async close.
+     *
+     * @return Promise
+     */
+    public function disconnect()
+    {
+        return $this->stream->disconnect();
+    }
+    /**
+     * Get read buffer asynchronously.
+     *
+     * @param int $length Length of payload, as detected by this layer
+     *
+     * @return Promise
+     */
+    public function getReadBuffer(&$length): Promise
+    {
+        if (!$this->stream) {
+            return new Failure(new ClosedException("MadelineProto stream was disconnected"));
+        }
+        $chunk = yield $this->read();
+        if ($chunk === null) {
+            $this->disconnect();
+            throw new \danog\MadelineProto\NothingInTheSocketException();
+        }
+        $length = \strlen($chunk);
+        return new Success(new class($chunk) implements ReadBufferInterface {
+            /**
+             * Buffer.
+             *
+             * @var resource
+             */
+            private $buffer;
+            /**
+             * Constructor function.
+             *
+             * @param string $buf Buffer
+             */
+            public function __construct(string $buf)
+            {
+                $this->buffer = \fopen('php://memory', 'r+');
+                \fwrite($this->buffer, $buf);
+                \fseek($this->buffer, 0);
+            }
+            /**
+             * Read data from buffer.
+             *
+             * @param integer $length Length
+             *
+             * @return Promise<string>
+             */
+            public function bufferRead(int $length): Promise
+            {
+                return new Success(\fread($this->buffer, $length));
+            }
+            /**
+             * Destructor function.
+             */
+            public function __destruct(): void
+            {
+                \fclose($this->buffer);
+            }
+        });
+    }
+    /**
+     * Get write buffer asynchronously.
+     *
+     * @param int $length Total length of data that is going to be piped in the buffer
+     *
+     * @return Promise
+     */
+    public function getWriteBuffer(int $length, string $append = ''): Promise
+    {
+        return new Success(new class($length, $append, $this) implements WriteBufferInterface {
+            private int $length;
+            private string $append;
+            private int $append_after;
+            private RawStreamInterface $stream;
+            private string $data = '';
+            /**
+             * Constructor function
+             *
+             * @param integer $length
+             * @param string $append
+             * @param RawStreamInterface $rawStreamInterface
+             */
+            public function __construct(int $length, string $append, RawStreamInterface $rawStreamInterface)
+            {
+                $this->stream = $rawStreamInterface;
+                $this->length = $length;
+                if (\strlen($append)) {
+                    $this->append = $append;
+                    $this->append_after = $length - \strlen($append);
+                }
+            }
+            /**
+             * Async write.
+             *
+             * @param string $data Data to write
+             *
+             * @return Promise
+             */
+            public function bufferWrite(string $data): Promise
+            {
+                $this->data .= $data;
+                if ($this->append_after) {
+                    $this->append_after -= \strlen($data);
+                    if ($this->append_after === 0) {
+                        $this->data .= $this->append;
+                        $this->append = '';
+                        return $this->stream->write($this->data);
+                    } elseif ($this->append_after < 0) {
+                        $this->append_after = 0;
+                        $this->append = '';
+                        throw new Exception('Tried to send too much out of frame data, cannot append');
+                    }
+                }
+                return new Success(strlen($data));
+            }
+        });
+    }
+    /**
+     * {@inheritdoc}
+     *
+     * @return EncryptableSocket
+     */
+    public function getSocket(): EncryptableSocket
+    {
+        return $this->stream->getSocket();
+    }
+    /**
+     * {@inheritDoc}
+     *
+     * @return RawStreamInterface
+     */
+    public function getStream(): RawStreamInterface
+    {
+        return $this->stream;
+    }
+    public static function getName(): string
+    {
+        return __CLASS__;
+    }
+}

src/danog/MadelineProto/Stream/ConnectionContext.php

@@ -411,9 +411,7 @@ class ConnectionContext
     /**
      * Get a stream from the stream chain.
      *
-     * @internal Generator func
+     * @return \Generator<StreamInterface>
-     *
-     * @return \Generator
      */
     public function getStream(string $buffer = ''): \Generator
     {

src/danog/MadelineProto/Stream/ReadBufferInterface.php

@@ -0,0 +1,39 @@
+<?php
+
+/**
+ * Buffer interface.
+ *
+ * This file is part of MadelineProto.
+ * MadelineProto is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ * MadelineProto is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU Affero General Public License for more details.
+ * You should have received a copy of the GNU General Public License along with MadelineProto.
+ * If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @author    Daniil Gentili <daniil@daniil.it>
+ * @copyright 2016-2020 Daniil Gentili <daniil@daniil.it>
+ * @license   https://opensource.org/licenses/AGPL-3.0 AGPLv3
+ *
+ * @link https://docs.madelineproto.xyz MadelineProto documentation
+ */
+
+namespace danog\MadelineProto\Stream;
+
+use Amp\Promise;
+
+/**
+ * Read buffer interface.
+ *
+ * @author Daniil Gentili <daniil@daniil.it>
+ */
+interface ReadBufferInterface
+{
+    /**
+     * Read data asynchronously.
+     *
+     * @param int $length How much data to read
+     *
+     * @return Promise
+     */
+    public function bufferRead(int $length): Promise;
+}

src/danog/MadelineProto/Stream/Transport/DefaultStream.php

@@ -46,7 +46,7 @@ class DefaultStream implements RawStreamInterface, ProxyStreamInterface
      *
      * @var EncryptableSocket
      */
-    private $stream;
+    protected $stream;
     /**
      * Connector.
      *

src/danog/MadelineProto/Stream/WriteBufferInterface.php

@@ -0,0 +1,39 @@
+<?php
+
+/**
+ * Buffer interface.
+ *
+ * This file is part of MadelineProto.
+ * MadelineProto is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ * MadelineProto is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU Affero General Public License for more details.
+ * You should have received a copy of the GNU General Public License along with MadelineProto.
+ * If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @author    Daniil Gentili <daniil@daniil.it>
+ * @copyright 2016-2020 Daniil Gentili <daniil@daniil.it>
+ * @license   https://opensource.org/licenses/AGPL-3.0 AGPLv3
+ *
+ * @link https://docs.madelineproto.xyz MadelineProto documentation
+ */
+
+namespace danog\MadelineProto\Stream;
+
+use Amp\Promise;
+
+/**
+ * Write buffer interface.
+ *
+ * @author Daniil Gentili <daniil@daniil.it>
+ */
+interface WriteBufferInterface
+{
+    /**
+     * Write data asynchronously.
+     *
+     * @param string $data Data to write
+     *
+     * @return Promise
+     */
+    public function bufferWrite(string $data): Promise;
+}