diff --git a/.env b/.env
new file mode 100644
index 00000000..3d9f7e52
--- /dev/null
+++ b/.env
@@ -0,0 +1,39 @@
+APP_NAME=exchange
+APP_ENV=local
+APP_KEY=base64:Fu2YulXExzm9HJ5LgVmZUmcbRkchHkc82q02MorN5GQ=
+APP_DEBUG=true
+APP_URL=http://localhost
+
+LOG_CHANNEL=stack
+
+DB_CONNECTION=mysql
+DB_HOST=127.0.0.1
+DB_PORT=3306
+DB_DATABASE=exchange
+DB_USERNAME=root
+DB_PASSWORD=
+
+BROADCAST_DRIVER=log
+CACHE_DRIVER=file
+SESSION_DRIVER=file
+SESSION_LIFETIME=120
+QUEUE_DRIVER=sync
+
+REDIS_HOST=127.0.0.1
+REDIS_PASSWORD=null
+REDIS_PORT=6379
+
+MAIL_DRIVER=smtp
+MAIL_HOST=smtp.mailtrap.io
+MAIL_PORT=2525
+MAIL_USERNAME=null
+MAIL_PASSWORD=null
+MAIL_ENCRYPTION=null
+
+PUSHER_APP_ID=
+PUSHER_APP_KEY=
+PUSHER_APP_SECRET=
+PUSHER_APP_CLUSTER=mt1
+
+MIX_PUSHER_APP_KEY="${PUSHER_APP_KEY}"
+MIX_PUSHER_APP_CLUSTER="${PUSHER_APP_CLUSTER}"
diff --git a/.idea/exchange.iml b/.idea/exchange.iml
new file mode 100644
index 00000000..7a22b912
--- /dev/null
+++ b/.idea/exchange.iml
@@ -0,0 +1,16 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 00000000..28a804d8
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 00000000..2afdc8f1
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/php.xml b/.idea/php.xml
new file mode 100644
index 00000000..c6c02dbb
--- /dev/null
+++ b/.idea/php.xml
@@ -0,0 +1,18 @@
+
+
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+
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+
+
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+
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+
+
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 00000000..94a25f7f
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
new file mode 100644
index 00000000..1ccf99ca
--- /dev/null
+++ b/.idea/workspace.xml
@@ -0,0 +1,7398 @@
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+
+
+
+
+ $PROJECT_DIR$/composer.json
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
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+
+
+
+
+
+
+
+
+ appse
+ str
+ <<<
+
+
+ $PROJECT_DIR$/bootstrap
+
+
+
+
+
+
+
+
+
+
+
+
+ true
+ DEFINITION_ORDER
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+  . ')
attributes($attributes) . '>');
+ }
+
+ /**
+ * Generate a link to a Favicon file.
+ *
+ * @param string $url
+ * @param array $attributes
+ * @param bool $secure
+ *
+ * @return \Illuminate\Support\HtmlString
+ */
+ public function favicon($url, $attributes = [], $secure = null)
+ {
+ $defaults = ['rel' => 'shortcut icon', 'type' => 'image/x-icon'];
+
+ $attributes = array_merge($attributes, $defaults);
+
+ $attributes['href'] = $this->url->asset($url, $secure);
+
+ return $this->toHtmlString('attributes($attributes) . '>');
+ }
+
+ /**
+ * Generate a HTML link.
+ *
+ * @param string $url
+ * @param string $title
+ * @param array $attributes
+ * @param bool $secure
+ * @param bool $escape
+ *
+ * @return \Illuminate\Support\HtmlString
+ */
+ public function link($url, $title = null, $attributes = [], $secure = null, $escape = true)
+ {
+ $url = $this->url->to($url, [], $secure);
+
+ if (is_null($title) || $title === false) {
+ $title = $url;
+ }
+
+ if ($escape) {
+ $title = $this->entities($title);
+ }
+
+ return $this->toHtmlString('attributes($attributes) . '>' . $title . '');
+ }
+
+ /**
+ * Generate a HTTPS HTML link.
+ *
+ * @param string $url
+ * @param string $title
+ * @param array $attributes
+ *
+ * @return \Illuminate\Support\HtmlString
+ */
+ public function secureLink($url, $title = null, $attributes = [])
+ {
+ return $this->link($url, $title, $attributes, true);
+ }
+
+ /**
+ * Generate a HTML link to an asset.
+ *
+ * @param string $url
+ * @param string $title
+ * @param array $attributes
+ * @param bool $secure
+ *
+ * @return \Illuminate\Support\HtmlString
+ */
+ public function linkAsset($url, $title = null, $attributes = [], $secure = null)
+ {
+ $url = $this->url->asset($url, $secure);
+
+ return $this->link($url, $title ?: $url, $attributes, $secure);
+ }
+
+ /**
+ * Generate a HTTPS HTML link to an asset.
+ *
+ * @param string $url
+ * @param string $title
+ * @param array $attributes
+ *
+ * @return \Illuminate\Support\HtmlString
+ */
+ public function linkSecureAsset($url, $title = null, $attributes = [])
+ {
+ return $this->linkAsset($url, $title, $attributes, true);
+ }
+
+ /**
+ * Generate a HTML link to a named route.
+ *
+ * @param string $name
+ * @param string $title
+ * @param array $parameters
+ * @param array $attributes
+ *
+ * @return \Illuminate\Support\HtmlString
+ */
+ public function linkRoute($name, $title = null, $parameters = [], $attributes = [])
+ {
+ return $this->link($this->url->route($name, $parameters), $title, $attributes);
+ }
+
+ /**
+ * Generate a HTML link to a controller action.
+ *
+ * @param string $action
+ * @param string $title
+ * @param array $parameters
+ * @param array $attributes
+ *
+ * @return \Illuminate\Support\HtmlString
+ */
+ public function linkAction($action, $title = null, $parameters = [], $attributes = [])
+ {
+ return $this->link($this->url->action($action, $parameters), $title, $attributes);
+ }
+
+ /**
+ * Generate a HTML link to an email address.
+ *
+ * @param string $email
+ * @param string $title
+ * @param array $attributes
+ * @param bool $escape
+ *
+ * @return \Illuminate\Support\HtmlString
+ */
+ public function mailto($email, $title = null, $attributes = [], $escape = true)
+ {
+ $email = $this->email($email);
+
+ $title = $title ?: $email;
+
+ if ($escape) {
+ $title = $this->entities($title);
+ }
+
+ $email = $this->obfuscate('mailto:') . $email;
+
+ return $this->toHtmlString('attributes($attributes) . '>' . $title . '');
+ }
+
+ /**
+ * Obfuscate an e-mail address to prevent spam-bots from sniffing it.
+ *
+ * @param string $email
+ *
+ * @return string
+ */
+ public function email($email)
+ {
+ return str_replace('@', '@', $this->obfuscate($email));
+ }
+
+ /**
+ * Generates non-breaking space entities based on number supplied.
+ *
+ * @param int $num
+ *
+ * @return string
+ */
+ public function nbsp($num = 1)
+ {
+ return str_repeat(' ', $num);
+ }
+
+ /**
+ * Generate an ordered list of items.
+ *
+ * @param array $list
+ * @param array $attributes
+ *
+ * @return \Illuminate\Support\HtmlString|string
+ */
+ public function ol($list, $attributes = [])
+ {
+ return $this->listing('ol', $list, $attributes);
+ }
+
+ /**
+ * Generate an un-ordered list of items.
+ *
+ * @param array $list
+ * @param array $attributes
+ *
+ * @return \Illuminate\Support\HtmlString|string
+ */
+ public function ul($list, $attributes = [])
+ {
+ return $this->listing('ul', $list, $attributes);
+ }
+
+ /**
+ * Generate a description list of items.
+ *
+ * @param array $list
+ * @param array $attributes
+ *
+ * @return \Illuminate\Support\HtmlString
+ */
+ public function dl(array $list, array $attributes = [])
+ {
+ $attributes = $this->attributes($attributes);
+
+ $html = "";
+
+ foreach ($list as $key => $value) {
+ $value = (array) $value;
+
+ $html .= "$key";
+
+ foreach ($value as $v_key => $v_value) {
+ $html .= "$v_value";
+ }
+ }
+
+ $html .= '';
+
+ return $this->toHtmlString($html);
+ }
+
+ /**
+ * Create a listing HTML element.
+ *
+ * @param string $type
+ * @param array $list
+ * @param array $attributes
+ *
+ * @return \Illuminate\Support\HtmlString|string
+ */
+ protected function listing($type, $list, $attributes = [])
+ {
+ $html = '';
+
+ if (count($list) === 0) {
+ return $html;
+ }
+
+ // Essentially we will just spin through the list and build the list of the HTML
+ // elements from the array. We will also handled nested lists in case that is
+ // present in the array. Then we will build out the final listing elements.
+ foreach ($list as $key => $value) {
+ $html .= $this->listingElement($key, $type, $value);
+ }
+
+ $attributes = $this->attributes($attributes);
+
+ return $this->toHtmlString("<{$type}{$attributes}>{$html}");
+ }
+
+ /**
+ * Create the HTML for a listing element.
+ *
+ * @param mixed $key
+ * @param string $type
+ * @param mixed $value
+ *
+ * @return string
+ */
+ protected function listingElement($key, $type, $value)
+ {
+ if (is_array($value)) {
+ return $this->nestedListing($key, $type, $value);
+ } else {
+ return '' . e($value, false) . '';
+ }
+ }
+
+ /**
+ * Create the HTML for a nested listing attribute.
+ *
+ * @param mixed $key
+ * @param string $type
+ * @param mixed $value
+ *
+ * @return string
+ */
+ protected function nestedListing($key, $type, $value)
+ {
+ if (is_int($key)) {
+ return $this->listing($type, $value);
+ } else {
+ return '' . $key . $this->listing($type, $value) . '';
+ }
+ }
+
+ /**
+ * Build an HTML attribute string from an array.
+ *
+ * @param array $attributes
+ *
+ * @return string
+ */
+ public function attributes($attributes)
+ {
+ $html = [];
+
+ foreach ((array) $attributes as $key => $value) {
+ $element = $this->attributeElement($key, $value);
+
+ if (! is_null($element)) {
+ $html[] = $element;
+ }
+ }
+
+ return count($html) > 0 ? ' ' . implode(' ', $html) : '';
+ }
+
+ /**
+ * Build a single attribute element.
+ *
+ * @param string $key
+ * @param string $value
+ *
+ * @return string
+ */
+ protected function attributeElement($key, $value)
+ {
+ // For numeric keys we will assume that the value is a boolean attribute
+ // where the presence of the attribute represents a true value and the
+ // absence represents a false value.
+ // This will convert HTML attributes such as "required" to a correct
+ // form instead of using incorrect numerics.
+ if (is_numeric($key)) {
+ return $value;
+ }
+
+ // Treat boolean attributes as HTML properties
+ if (is_bool($value) && $key !== 'value') {
+ return $value ? $key : '';
+ }
+
+ if (! is_null($value)) {
+ return $key . '="' . e($value, false) . '"';
+ }
+ }
+
+ /**
+ * Obfuscate a string to prevent spam-bots from sniffing it.
+ *
+ * @param string $value
+ *
+ * @return string
+ */
+ public function obfuscate($value)
+ {
+ $safe = '';
+
+ foreach (str_split($value) as $letter) {
+ if (ord($letter) > 128) {
+ return $letter;
+ }
+
+ // To properly obfuscate the value, we will randomly convert each letter to
+ // its entity or hexadecimal representation, keeping a bot from sniffing
+ // the randomly obfuscated letters out of the string on the responses.
+ switch (rand(1, 3)) {
+ case 1:
+ $safe .= '&#' . ord($letter) . ';';
+ break;
+
+ case 2:
+ $safe .= '&#x' . dechex(ord($letter)) . ';';
+ break;
+
+ case 3:
+ $safe .= $letter;
+ }
+ }
+
+ return $safe;
+ }
+
+ /**
+ * Generate a meta tag.
+ *
+ * @param string $name
+ * @param string $content
+ * @param array $attributes
+ *
+ * @return \Illuminate\Support\HtmlString
+ */
+ public function meta($name, $content, array $attributes = [])
+ {
+ $defaults = compact('name', 'content');
+
+ $attributes = array_merge($defaults, $attributes);
+
+ return $this->toHtmlString('attributes($attributes) . '>');
+ }
+
+ /**
+ * Generate an html tag.
+ *
+ * @param string $tag
+ * @param mixed $content
+ * @param array $attributes
+ *
+ * @return \Illuminate\Support\HtmlString
+ */
+ public function tag($tag, $content, array $attributes = [])
+ {
+ $content = is_array($content) ? implode('', $content) : $content;
+ return $this->toHtmlString('<' . $tag . $this->attributes($attributes) . '>' . $this->toHtmlString($content) . '');
+ }
+
+ /**
+ * Transform the string to an Html serializable object
+ *
+ * @param $html
+ *
+ * @return \Illuminate\Support\HtmlString
+ */
+ protected function toHtmlString($html)
+ {
+ return new HtmlString($html);
+ }
+
+ /**
+ * Dynamically handle calls to the class.
+ *
+ * @param string $method
+ * @param array $parameters
+ *
+ * @return \Illuminate\Contracts\View\View|mixed
+ *
+ * @throws \BadMethodCallException
+ */
+ public function __call($method, $parameters)
+ {
+ if (static::hasComponent($method)) {
+ return $this->componentCall($method, $parameters);
+ }
+
+ if (static::hasMacro($method)) {
+ return $this->macroCall($method, $parameters);
+ }
+
+ throw new BadMethodCallException("Method {$method} does not exist.");
+ }
+}
diff --git a/vendor/laravelcollective/html/src/HtmlFacade.php b/vendor/laravelcollective/html/src/HtmlFacade.php
new file mode 100644
index 00000000..127cdc82
--- /dev/null
+++ b/vendor/laravelcollective/html/src/HtmlFacade.php
@@ -0,0 +1,22 @@
+registerHtmlBuilder();
+
+ $this->registerFormBuilder();
+
+ $this->app->alias('html', HtmlBuilder::class);
+ $this->app->alias('form', FormBuilder::class);
+
+ $this->registerBladeDirectives();
+ }
+
+ /**
+ * Register the HTML builder instance.
+ *
+ * @return void
+ */
+ protected function registerHtmlBuilder()
+ {
+ $this->app->singleton('html', function ($app) {
+ return new HtmlBuilder($app['url'], $app['view']);
+ });
+ }
+
+ /**
+ * Register the form builder instance.
+ *
+ * @return void
+ */
+ protected function registerFormBuilder()
+ {
+ $this->app->singleton('form', function ($app) {
+ $form = new FormBuilder($app['html'], $app['url'], $app['view'], $app['session.store']->token(), $app['request']);
+
+ return $form->setSessionStore($app['session.store']);
+ });
+ }
+
+ /**
+ * Register Blade directives.
+ *
+ * @return void
+ */
+ protected function registerBladeDirectives()
+ {
+ $this->app->afterResolving('blade.compiler', function (BladeCompiler $bladeCompiler) {
+ $namespaces = [
+ 'Html' => get_class_methods(HtmlBuilder::class),
+ 'Form' => get_class_methods(FormBuilder::class),
+ ];
+
+ foreach ($namespaces as $namespace => $methods) {
+ foreach ($methods as $method) {
+ if (in_array($method, $this->directives)) {
+ $snakeMethod = Str::snake($method);
+ $directive = strtolower($namespace).'_'.$snakeMethod;
+
+ $bladeCompiler->directive($directive, function ($expression) use ($namespace, $method) {
+ return "";
+ });
+ }
+ }
+ }
+ });
+ }
+
+ /**
+ * Get the services provided by the provider.
+ *
+ * @return array
+ */
+ public function provides()
+ {
+ return ['html', 'form', HtmlBuilder::class, FormBuilder::class];
+ }
+}
diff --git a/vendor/laravelcollective/html/src/helpers.php b/vendor/laravelcollective/html/src/helpers.php
new file mode 100644
index 00000000..14f03610
--- /dev/null
+++ b/vendor/laravelcollective/html/src/helpers.php
@@ -0,0 +1,70 @@
+link($url, $title, $attributes, $secure, $escape);
+ }
+}
+
+if (! function_exists('link_to_asset')) {
+ /**
+ * Generate a HTML link to an asset.
+ *
+ * @param string $url
+ * @param string $title
+ * @param array $attributes
+ * @param bool $secure
+ *
+ * @return string
+ */
+ function link_to_asset($url, $title = null, $attributes = [], $secure = null)
+ {
+ return app('html')->linkAsset($url, $title, $attributes, $secure);
+ }
+}
+
+if (! function_exists('link_to_route')) {
+ /**
+ * Generate a HTML link to a named route.
+ *
+ * @param string $name
+ * @param string $title
+ * @param array $parameters
+ * @param array $attributes
+ *
+ * @return string
+ */
+ function link_to_route($name, $title = null, $parameters = [], $attributes = [])
+ {
+ return app('html')->linkRoute($name, $title, $parameters, $attributes);
+ }
+}
+
+if (! function_exists('link_to_action')) {
+ /**
+ * Generate a HTML link to a controller action.
+ *
+ * @param string $action
+ * @param string $title
+ * @param array $parameters
+ * @param array $attributes
+ *
+ * @return string
+ */
+ function link_to_action($action, $title = null, $parameters = [], $attributes = [])
+ {
+ return app('html')->linkAction($action, $title, $parameters, $attributes);
+ }
+}
diff --git a/vendor/psr/http-message/CHANGELOG.md b/vendor/psr/http-message/CHANGELOG.md
new file mode 100644
index 00000000..74b1ef92
--- /dev/null
+++ b/vendor/psr/http-message/CHANGELOG.md
@@ -0,0 +1,36 @@
+# Changelog
+
+All notable changes to this project will be documented in this file, in reverse chronological order by release.
+
+## 1.0.1 - 2016-08-06
+
+### Added
+
+- Nothing.
+
+### Deprecated
+
+- Nothing.
+
+### Removed
+
+- Nothing.
+
+### Fixed
+
+- Updated all `@return self` annotation references in interfaces to use
+ `@return static`, which more closelly follows the semantics of the
+ specification.
+- Updated the `MessageInterface::getHeaders()` return annotation to use the
+ value `string[][]`, indicating the format is a nested array of strings.
+- Updated the `@link` annotation for `RequestInterface::withRequestTarget()`
+ to point to the correct section of RFC 7230.
+- Updated the `ServerRequestInterface::withUploadedFiles()` parameter annotation
+ to add the parameter name (`$uploadedFiles`).
+- Updated a `@throws` annotation for the `UploadedFileInterface::moveTo()`
+ method to correctly reference the method parameter (it was referencing an
+ incorrect parameter name previously).
+
+## 1.0.0 - 2016-05-18
+
+Initial stable release; reflects accepted PSR-7 specification.
diff --git a/vendor/psr/http-message/LICENSE b/vendor/psr/http-message/LICENSE
new file mode 100644
index 00000000..c2d8e452
--- /dev/null
+++ b/vendor/psr/http-message/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2014 PHP Framework Interoperability Group
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/psr/http-message/README.md b/vendor/psr/http-message/README.md
new file mode 100644
index 00000000..28185338
--- /dev/null
+++ b/vendor/psr/http-message/README.md
@@ -0,0 +1,13 @@
+PSR Http Message
+================
+
+This repository holds all interfaces/classes/traits related to
+[PSR-7](http://www.php-fig.org/psr/psr-7/).
+
+Note that this is not a HTTP message implementation of its own. It is merely an
+interface that describes a HTTP message. See the specification for more details.
+
+Usage
+-----
+
+We'll certainly need some stuff in here.
\ No newline at end of file
diff --git a/vendor/psr/http-message/composer.json b/vendor/psr/http-message/composer.json
new file mode 100644
index 00000000..b0d2937a
--- /dev/null
+++ b/vendor/psr/http-message/composer.json
@@ -0,0 +1,26 @@
+{
+ "name": "psr/http-message",
+ "description": "Common interface for HTTP messages",
+ "keywords": ["psr", "psr-7", "http", "http-message", "request", "response"],
+ "homepage": "https://github.com/php-fig/http-message",
+ "license": "MIT",
+ "authors": [
+ {
+ "name": "PHP-FIG",
+ "homepage": "http://www.php-fig.org/"
+ }
+ ],
+ "require": {
+ "php": ">=5.3.0"
+ },
+ "autoload": {
+ "psr-4": {
+ "Psr\\Http\\Message\\": "src/"
+ }
+ },
+ "extra": {
+ "branch-alias": {
+ "dev-master": "1.0.x-dev"
+ }
+ }
+}
diff --git a/vendor/psr/http-message/src/MessageInterface.php b/vendor/psr/http-message/src/MessageInterface.php
new file mode 100644
index 00000000..dd46e5ec
--- /dev/null
+++ b/vendor/psr/http-message/src/MessageInterface.php
@@ -0,0 +1,187 @@
+getHeaders() as $name => $values) {
+ * echo $name . ": " . implode(", ", $values);
+ * }
+ *
+ * // Emit headers iteratively:
+ * foreach ($message->getHeaders() as $name => $values) {
+ * foreach ($values as $value) {
+ * header(sprintf('%s: %s', $name, $value), false);
+ * }
+ * }
+ *
+ * While header names are not case-sensitive, getHeaders() will preserve the
+ * exact case in which headers were originally specified.
+ *
+ * @return string[][] Returns an associative array of the message's headers. Each
+ * key MUST be a header name, and each value MUST be an array of strings
+ * for that header.
+ */
+ public function getHeaders();
+
+ /**
+ * Checks if a header exists by the given case-insensitive name.
+ *
+ * @param string $name Case-insensitive header field name.
+ * @return bool Returns true if any header names match the given header
+ * name using a case-insensitive string comparison. Returns false if
+ * no matching header name is found in the message.
+ */
+ public function hasHeader($name);
+
+ /**
+ * Retrieves a message header value by the given case-insensitive name.
+ *
+ * This method returns an array of all the header values of the given
+ * case-insensitive header name.
+ *
+ * If the header does not appear in the message, this method MUST return an
+ * empty array.
+ *
+ * @param string $name Case-insensitive header field name.
+ * @return string[] An array of string values as provided for the given
+ * header. If the header does not appear in the message, this method MUST
+ * return an empty array.
+ */
+ public function getHeader($name);
+
+ /**
+ * Retrieves a comma-separated string of the values for a single header.
+ *
+ * This method returns all of the header values of the given
+ * case-insensitive header name as a string concatenated together using
+ * a comma.
+ *
+ * NOTE: Not all header values may be appropriately represented using
+ * comma concatenation. For such headers, use getHeader() instead
+ * and supply your own delimiter when concatenating.
+ *
+ * If the header does not appear in the message, this method MUST return
+ * an empty string.
+ *
+ * @param string $name Case-insensitive header field name.
+ * @return string A string of values as provided for the given header
+ * concatenated together using a comma. If the header does not appear in
+ * the message, this method MUST return an empty string.
+ */
+ public function getHeaderLine($name);
+
+ /**
+ * Return an instance with the provided value replacing the specified header.
+ *
+ * While header names are case-insensitive, the casing of the header will
+ * be preserved by this function, and returned from getHeaders().
+ *
+ * This method MUST be implemented in such a way as to retain the
+ * immutability of the message, and MUST return an instance that has the
+ * new and/or updated header and value.
+ *
+ * @param string $name Case-insensitive header field name.
+ * @param string|string[] $value Header value(s).
+ * @return static
+ * @throws \InvalidArgumentException for invalid header names or values.
+ */
+ public function withHeader($name, $value);
+
+ /**
+ * Return an instance with the specified header appended with the given value.
+ *
+ * Existing values for the specified header will be maintained. The new
+ * value(s) will be appended to the existing list. If the header did not
+ * exist previously, it will be added.
+ *
+ * This method MUST be implemented in such a way as to retain the
+ * immutability of the message, and MUST return an instance that has the
+ * new header and/or value.
+ *
+ * @param string $name Case-insensitive header field name to add.
+ * @param string|string[] $value Header value(s).
+ * @return static
+ * @throws \InvalidArgumentException for invalid header names or values.
+ */
+ public function withAddedHeader($name, $value);
+
+ /**
+ * Return an instance without the specified header.
+ *
+ * Header resolution MUST be done without case-sensitivity.
+ *
+ * This method MUST be implemented in such a way as to retain the
+ * immutability of the message, and MUST return an instance that removes
+ * the named header.
+ *
+ * @param string $name Case-insensitive header field name to remove.
+ * @return static
+ */
+ public function withoutHeader($name);
+
+ /**
+ * Gets the body of the message.
+ *
+ * @return StreamInterface Returns the body as a stream.
+ */
+ public function getBody();
+
+ /**
+ * Return an instance with the specified message body.
+ *
+ * The body MUST be a StreamInterface object.
+ *
+ * This method MUST be implemented in such a way as to retain the
+ * immutability of the message, and MUST return a new instance that has the
+ * new body stream.
+ *
+ * @param StreamInterface $body Body.
+ * @return static
+ * @throws \InvalidArgumentException When the body is not valid.
+ */
+ public function withBody(StreamInterface $body);
+}
diff --git a/vendor/psr/http-message/src/RequestInterface.php b/vendor/psr/http-message/src/RequestInterface.php
new file mode 100644
index 00000000..a96d4fd6
--- /dev/null
+++ b/vendor/psr/http-message/src/RequestInterface.php
@@ -0,0 +1,129 @@
+getQuery()`
+ * or from the `QUERY_STRING` server param.
+ *
+ * @return array
+ */
+ public function getQueryParams();
+
+ /**
+ * Return an instance with the specified query string arguments.
+ *
+ * These values SHOULD remain immutable over the course of the incoming
+ * request. They MAY be injected during instantiation, such as from PHP's
+ * $_GET superglobal, or MAY be derived from some other value such as the
+ * URI. In cases where the arguments are parsed from the URI, the data
+ * MUST be compatible with what PHP's parse_str() would return for
+ * purposes of how duplicate query parameters are handled, and how nested
+ * sets are handled.
+ *
+ * Setting query string arguments MUST NOT change the URI stored by the
+ * request, nor the values in the server params.
+ *
+ * This method MUST be implemented in such a way as to retain the
+ * immutability of the message, and MUST return an instance that has the
+ * updated query string arguments.
+ *
+ * @param array $query Array of query string arguments, typically from
+ * $_GET.
+ * @return static
+ */
+ public function withQueryParams(array $query);
+
+ /**
+ * Retrieve normalized file upload data.
+ *
+ * This method returns upload metadata in a normalized tree, with each leaf
+ * an instance of Psr\Http\Message\UploadedFileInterface.
+ *
+ * These values MAY be prepared from $_FILES or the message body during
+ * instantiation, or MAY be injected via withUploadedFiles().
+ *
+ * @return array An array tree of UploadedFileInterface instances; an empty
+ * array MUST be returned if no data is present.
+ */
+ public function getUploadedFiles();
+
+ /**
+ * Create a new instance with the specified uploaded files.
+ *
+ * This method MUST be implemented in such a way as to retain the
+ * immutability of the message, and MUST return an instance that has the
+ * updated body parameters.
+ *
+ * @param array $uploadedFiles An array tree of UploadedFileInterface instances.
+ * @return static
+ * @throws \InvalidArgumentException if an invalid structure is provided.
+ */
+ public function withUploadedFiles(array $uploadedFiles);
+
+ /**
+ * Retrieve any parameters provided in the request body.
+ *
+ * If the request Content-Type is either application/x-www-form-urlencoded
+ * or multipart/form-data, and the request method is POST, this method MUST
+ * return the contents of $_POST.
+ *
+ * Otherwise, this method may return any results of deserializing
+ * the request body content; as parsing returns structured content, the
+ * potential types MUST be arrays or objects only. A null value indicates
+ * the absence of body content.
+ *
+ * @return null|array|object The deserialized body parameters, if any.
+ * These will typically be an array or object.
+ */
+ public function getParsedBody();
+
+ /**
+ * Return an instance with the specified body parameters.
+ *
+ * These MAY be injected during instantiation.
+ *
+ * If the request Content-Type is either application/x-www-form-urlencoded
+ * or multipart/form-data, and the request method is POST, use this method
+ * ONLY to inject the contents of $_POST.
+ *
+ * The data IS NOT REQUIRED to come from $_POST, but MUST be the results of
+ * deserializing the request body content. Deserialization/parsing returns
+ * structured data, and, as such, this method ONLY accepts arrays or objects,
+ * or a null value if nothing was available to parse.
+ *
+ * As an example, if content negotiation determines that the request data
+ * is a JSON payload, this method could be used to create a request
+ * instance with the deserialized parameters.
+ *
+ * This method MUST be implemented in such a way as to retain the
+ * immutability of the message, and MUST return an instance that has the
+ * updated body parameters.
+ *
+ * @param null|array|object $data The deserialized body data. This will
+ * typically be in an array or object.
+ * @return static
+ * @throws \InvalidArgumentException if an unsupported argument type is
+ * provided.
+ */
+ public function withParsedBody($data);
+
+ /**
+ * Retrieve attributes derived from the request.
+ *
+ * The request "attributes" may be used to allow injection of any
+ * parameters derived from the request: e.g., the results of path
+ * match operations; the results of decrypting cookies; the results of
+ * deserializing non-form-encoded message bodies; etc. Attributes
+ * will be application and request specific, and CAN be mutable.
+ *
+ * @return array Attributes derived from the request.
+ */
+ public function getAttributes();
+
+ /**
+ * Retrieve a single derived request attribute.
+ *
+ * Retrieves a single derived request attribute as described in
+ * getAttributes(). If the attribute has not been previously set, returns
+ * the default value as provided.
+ *
+ * This method obviates the need for a hasAttribute() method, as it allows
+ * specifying a default value to return if the attribute is not found.
+ *
+ * @see getAttributes()
+ * @param string $name The attribute name.
+ * @param mixed $default Default value to return if the attribute does not exist.
+ * @return mixed
+ */
+ public function getAttribute($name, $default = null);
+
+ /**
+ * Return an instance with the specified derived request attribute.
+ *
+ * This method allows setting a single derived request attribute as
+ * described in getAttributes().
+ *
+ * This method MUST be implemented in such a way as to retain the
+ * immutability of the message, and MUST return an instance that has the
+ * updated attribute.
+ *
+ * @see getAttributes()
+ * @param string $name The attribute name.
+ * @param mixed $value The value of the attribute.
+ * @return static
+ */
+ public function withAttribute($name, $value);
+
+ /**
+ * Return an instance that removes the specified derived request attribute.
+ *
+ * This method allows removing a single derived request attribute as
+ * described in getAttributes().
+ *
+ * This method MUST be implemented in such a way as to retain the
+ * immutability of the message, and MUST return an instance that removes
+ * the attribute.
+ *
+ * @see getAttributes()
+ * @param string $name The attribute name.
+ * @return static
+ */
+ public function withoutAttribute($name);
+}
diff --git a/vendor/psr/http-message/src/StreamInterface.php b/vendor/psr/http-message/src/StreamInterface.php
new file mode 100644
index 00000000..f68f3912
--- /dev/null
+++ b/vendor/psr/http-message/src/StreamInterface.php
@@ -0,0 +1,158 @@
+
+ * [user-info@]host[:port]
+ *
+ *
+ * If the port component is not set or is the standard port for the current
+ * scheme, it SHOULD NOT be included.
+ *
+ * @see https://tools.ietf.org/html/rfc3986#section-3.2
+ * @return string The URI authority, in "[user-info@]host[:port]" format.
+ */
+ public function getAuthority();
+
+ /**
+ * Retrieve the user information component of the URI.
+ *
+ * If no user information is present, this method MUST return an empty
+ * string.
+ *
+ * If a user is present in the URI, this will return that value;
+ * additionally, if the password is also present, it will be appended to the
+ * user value, with a colon (":") separating the values.
+ *
+ * The trailing "@" character is not part of the user information and MUST
+ * NOT be added.
+ *
+ * @return string The URI user information, in "username[:password]" format.
+ */
+ public function getUserInfo();
+
+ /**
+ * Retrieve the host component of the URI.
+ *
+ * If no host is present, this method MUST return an empty string.
+ *
+ * The value returned MUST be normalized to lowercase, per RFC 3986
+ * Section 3.2.2.
+ *
+ * @see http://tools.ietf.org/html/rfc3986#section-3.2.2
+ * @return string The URI host.
+ */
+ public function getHost();
+
+ /**
+ * Retrieve the port component of the URI.
+ *
+ * If a port is present, and it is non-standard for the current scheme,
+ * this method MUST return it as an integer. If the port is the standard port
+ * used with the current scheme, this method SHOULD return null.
+ *
+ * If no port is present, and no scheme is present, this method MUST return
+ * a null value.
+ *
+ * If no port is present, but a scheme is present, this method MAY return
+ * the standard port for that scheme, but SHOULD return null.
+ *
+ * @return null|int The URI port.
+ */
+ public function getPort();
+
+ /**
+ * Retrieve the path component of the URI.
+ *
+ * The path can either be empty or absolute (starting with a slash) or
+ * rootless (not starting with a slash). Implementations MUST support all
+ * three syntaxes.
+ *
+ * Normally, the empty path "" and absolute path "/" are considered equal as
+ * defined in RFC 7230 Section 2.7.3. But this method MUST NOT automatically
+ * do this normalization because in contexts with a trimmed base path, e.g.
+ * the front controller, this difference becomes significant. It's the task
+ * of the user to handle both "" and "/".
+ *
+ * The value returned MUST be percent-encoded, but MUST NOT double-encode
+ * any characters. To determine what characters to encode, please refer to
+ * RFC 3986, Sections 2 and 3.3.
+ *
+ * As an example, if the value should include a slash ("/") not intended as
+ * delimiter between path segments, that value MUST be passed in encoded
+ * form (e.g., "%2F") to the instance.
+ *
+ * @see https://tools.ietf.org/html/rfc3986#section-2
+ * @see https://tools.ietf.org/html/rfc3986#section-3.3
+ * @return string The URI path.
+ */
+ public function getPath();
+
+ /**
+ * Retrieve the query string of the URI.
+ *
+ * If no query string is present, this method MUST return an empty string.
+ *
+ * The leading "?" character is not part of the query and MUST NOT be
+ * added.
+ *
+ * The value returned MUST be percent-encoded, but MUST NOT double-encode
+ * any characters. To determine what characters to encode, please refer to
+ * RFC 3986, Sections 2 and 3.4.
+ *
+ * As an example, if a value in a key/value pair of the query string should
+ * include an ampersand ("&") not intended as a delimiter between values,
+ * that value MUST be passed in encoded form (e.g., "%26") to the instance.
+ *
+ * @see https://tools.ietf.org/html/rfc3986#section-2
+ * @see https://tools.ietf.org/html/rfc3986#section-3.4
+ * @return string The URI query string.
+ */
+ public function getQuery();
+
+ /**
+ * Retrieve the fragment component of the URI.
+ *
+ * If no fragment is present, this method MUST return an empty string.
+ *
+ * The leading "#" character is not part of the fragment and MUST NOT be
+ * added.
+ *
+ * The value returned MUST be percent-encoded, but MUST NOT double-encode
+ * any characters. To determine what characters to encode, please refer to
+ * RFC 3986, Sections 2 and 3.5.
+ *
+ * @see https://tools.ietf.org/html/rfc3986#section-2
+ * @see https://tools.ietf.org/html/rfc3986#section-3.5
+ * @return string The URI fragment.
+ */
+ public function getFragment();
+
+ /**
+ * Return an instance with the specified scheme.
+ *
+ * This method MUST retain the state of the current instance, and return
+ * an instance that contains the specified scheme.
+ *
+ * Implementations MUST support the schemes "http" and "https" case
+ * insensitively, and MAY accommodate other schemes if required.
+ *
+ * An empty scheme is equivalent to removing the scheme.
+ *
+ * @param string $scheme The scheme to use with the new instance.
+ * @return static A new instance with the specified scheme.
+ * @throws \InvalidArgumentException for invalid or unsupported schemes.
+ */
+ public function withScheme($scheme);
+
+ /**
+ * Return an instance with the specified user information.
+ *
+ * This method MUST retain the state of the current instance, and return
+ * an instance that contains the specified user information.
+ *
+ * Password is optional, but the user information MUST include the
+ * user; an empty string for the user is equivalent to removing user
+ * information.
+ *
+ * @param string $user The user name to use for authority.
+ * @param null|string $password The password associated with $user.
+ * @return static A new instance with the specified user information.
+ */
+ public function withUserInfo($user, $password = null);
+
+ /**
+ * Return an instance with the specified host.
+ *
+ * This method MUST retain the state of the current instance, and return
+ * an instance that contains the specified host.
+ *
+ * An empty host value is equivalent to removing the host.
+ *
+ * @param string $host The hostname to use with the new instance.
+ * @return static A new instance with the specified host.
+ * @throws \InvalidArgumentException for invalid hostnames.
+ */
+ public function withHost($host);
+
+ /**
+ * Return an instance with the specified port.
+ *
+ * This method MUST retain the state of the current instance, and return
+ * an instance that contains the specified port.
+ *
+ * Implementations MUST raise an exception for ports outside the
+ * established TCP and UDP port ranges.
+ *
+ * A null value provided for the port is equivalent to removing the port
+ * information.
+ *
+ * @param null|int $port The port to use with the new instance; a null value
+ * removes the port information.
+ * @return static A new instance with the specified port.
+ * @throws \InvalidArgumentException for invalid ports.
+ */
+ public function withPort($port);
+
+ /**
+ * Return an instance with the specified path.
+ *
+ * This method MUST retain the state of the current instance, and return
+ * an instance that contains the specified path.
+ *
+ * The path can either be empty or absolute (starting with a slash) or
+ * rootless (not starting with a slash). Implementations MUST support all
+ * three syntaxes.
+ *
+ * If the path is intended to be domain-relative rather than path relative then
+ * it must begin with a slash ("/"). Paths not starting with a slash ("/")
+ * are assumed to be relative to some base path known to the application or
+ * consumer.
+ *
+ * Users can provide both encoded and decoded path characters.
+ * Implementations ensure the correct encoding as outlined in getPath().
+ *
+ * @param string $path The path to use with the new instance.
+ * @return static A new instance with the specified path.
+ * @throws \InvalidArgumentException for invalid paths.
+ */
+ public function withPath($path);
+
+ /**
+ * Return an instance with the specified query string.
+ *
+ * This method MUST retain the state of the current instance, and return
+ * an instance that contains the specified query string.
+ *
+ * Users can provide both encoded and decoded query characters.
+ * Implementations ensure the correct encoding as outlined in getQuery().
+ *
+ * An empty query string value is equivalent to removing the query string.
+ *
+ * @param string $query The query string to use with the new instance.
+ * @return static A new instance with the specified query string.
+ * @throws \InvalidArgumentException for invalid query strings.
+ */
+ public function withQuery($query);
+
+ /**
+ * Return an instance with the specified URI fragment.
+ *
+ * This method MUST retain the state of the current instance, and return
+ * an instance that contains the specified URI fragment.
+ *
+ * Users can provide both encoded and decoded fragment characters.
+ * Implementations ensure the correct encoding as outlined in getFragment().
+ *
+ * An empty fragment value is equivalent to removing the fragment.
+ *
+ * @param string $fragment The fragment to use with the new instance.
+ * @return static A new instance with the specified fragment.
+ */
+ public function withFragment($fragment);
+
+ /**
+ * Return the string representation as a URI reference.
+ *
+ * Depending on which components of the URI are present, the resulting
+ * string is either a full URI or relative reference according to RFC 3986,
+ * Section 4.1. The method concatenates the various components of the URI,
+ * using the appropriate delimiters:
+ *
+ * - If a scheme is present, it MUST be suffixed by ":".
+ * - If an authority is present, it MUST be prefixed by "//".
+ * - The path can be concatenated without delimiters. But there are two
+ * cases where the path has to be adjusted to make the URI reference
+ * valid as PHP does not allow to throw an exception in __toString():
+ * - If the path is rootless and an authority is present, the path MUST
+ * be prefixed by "/".
+ * - If the path is starting with more than one "/" and no authority is
+ * present, the starting slashes MUST be reduced to one.
+ * - If a query is present, it MUST be prefixed by "?".
+ * - If a fragment is present, it MUST be prefixed by "#".
+ *
+ * @see http://tools.ietf.org/html/rfc3986#section-4.1
+ * @return string
+ */
+ public function __toString();
+}