Added more type-hints for "App" classes

src/App/Arguments.php

@@ -78,7 +78,7 @@ class Arguments
 	/**
 	 * @return string The whole command of this call
 	 */
-	public function getCommand()
+	public function getCommand(): string
 	{
 		return $this->command;
 	}
@@ -94,7 +94,7 @@ class Arguments
 	/**
 	 * @return array All arguments of this call
 	 */
-	public function getArgv()
+	public function getArgv(): array
 	{
 		return $this->argv;
 	}
@@ -102,7 +102,7 @@ class Arguments
 	/**
 	 * @return string The used HTTP method
 	 */
-	public function getMethod()
+	public function getMethod(): string
 	{
 		return $this->method;
 	}
@@ -110,7 +110,7 @@ class Arguments
 	/**
 	 * @return int The count of arguments of this call
 	 */
-	public function getArgc()
+	public function getArgc(): int
 	{
 		return $this->argc;
 	}
@@ -145,7 +145,7 @@ class Arguments
 	 *
 	 * @return bool if the argument position exists
 	 */
-	public function has(int $position)
+	public function has(int $position): bool
 	{
 		return array_key_exists($position, $this->argv);
 	}
@@ -158,7 +158,7 @@ class Arguments
 	 *
 	 * @return Arguments The determined arguments
 	 */
-	public function determine(array $server, array $get)
+	public function determine(array $server, array $get): Arguments
 	{
 		// removing leading / - maybe a nginx problem
 		$server['QUERY_STRING'] = ltrim($server['QUERY_STRING'] ?? '', '/');

src/App/BaseURL.php

@@ -107,7 +107,7 @@ class BaseURL
 	 *
 	 * @return string
 	 */
-	public function getHostname()
+	public function getHostname(): string
 	{
 		return $this->hostname;
 	}
@@ -117,7 +117,7 @@ class BaseURL
 	 *
 	 * @return string
 	 */
-	public function getScheme()
+	public function getScheme(): string
 	{
 		return $this->scheme;
 	}
@@ -127,7 +127,7 @@ class BaseURL
 	 *
 	 * @return int
 	 */
-	public function getSSLPolicy()
+	public function getSSLPolicy(): int
 	{
 		return $this->sslPolicy;
 	}
@@ -137,7 +137,7 @@ class BaseURL
 	 *
 	 * @return string
 	 */
-	public function getUrlPath()
+	public function getUrlPath(): string
 	{
 		return $this->urlPath;
 	}
@@ -151,7 +151,7 @@ class BaseURL
 	 *
 	 * @return string
 	 */
-	public function get($ssl = false)
+	public function get(bool $ssl = false): string
 	{
 		if ($this->sslPolicy === self::SSL_POLICY_SELFSIGN && $ssl) {
 			return Network::switchScheme($this->url);
@@ -168,8 +168,9 @@ class BaseURL
 	 * @param string? $urlPath
 	 *
 	 * @return bool true, if successful
+	 * @TODO Find proper types
 	 */
-	public function save($hostname = null, $sslPolicy = null, $urlPath = null)
+	public function save($hostname = null, $sslPolicy = null, $urlPath = null): bool
 	{
 		$currHostname  = $this->hostname;
 		$currSSLPolicy = $this->sslPolicy;
@@ -224,11 +225,11 @@ class BaseURL
 	/**
 	 * Save the current url as base URL
 	 *
-	 * @param $url
+	 * @param string $url
 	 *
 	 * @return bool true, if the save was successful
 	 */
-	public function saveByURL($url)
+	public function saveByURL(string $url): bool
 	{
 		$parsed = @parse_url($url);
 
@@ -421,7 +422,7 @@ class BaseURL
 	 *
 	 * @return string The cleaned url
 	 */
-	public function remove(string $origURL)
+	public function remove(string $origURL): string
 	{
 		// Remove the hostname from the url if it is an internal link
 		$nurl = Strings::normaliseLink($origURL);
@@ -445,7 +446,7 @@ class BaseURL
 	 *
 	 * @throws HTTPException\InternalServerErrorException In Case the given URL is not relative to the Friendica node
 	 */
-	public function redirect($toUrl = '', $ssl = false)
+	public function redirect(string $toUrl = '', bool $ssl = false)
 	{
 		if (!empty(parse_url($toUrl, PHP_URL_SCHEME))) {
 			throw new HTTPException\InternalServerErrorException("'$toUrl is not a relative path, please use System::externalRedirectTo");
@@ -458,8 +459,8 @@ class BaseURL
 	/**
 	 * Returns the base url as string
 	 */
-	public function __toString()
+	public function __toString(): string
 	{
-		return $this->get();
+		return (string) $this->get();
 	}
 }

src/App/Mode.php

@@ -130,7 +130,7 @@ class Mode
 	 *
 	 * @throws \Exception
 	 */
-	public function determine(BasePath $basepath, Database $database, Cache $configCache)
+	public function determine(BasePath $basepath, Database $database, Cache $configCache): Mode
 	{
 		$mode = 0;
 
@@ -178,7 +178,7 @@ class Mode
 	 *
 	 * @return Mode returns the determined mode
 	 */
-	public function determineRunMode(bool $isBackend, array $server, Arguments $args, MobileDetect $mobileDetect)
+	public function determineRunMode(bool $isBackend, array $server, Arguments $args, MobileDetect $mobileDetect): Mode
 	{
 		foreach (self::BACKEND_CONTENT_TYPES as $type) {
 			if (strpos(strtolower($server['HTTP_ACCEPT'] ?? ''), $type) !== false) {
@@ -201,7 +201,7 @@ class Mode
 	 *
 	 * @return bool returns true, if the mode is set
 	 */
-	public function has($mode)
+	public function has(int $mode): bool
 	{
 		return ($this->mode & $mode) > 0;
 	}
@@ -227,7 +227,7 @@ class Mode
 	 *
 	 * @return int Execution Mode
 	 */
-	public function getExecutor()
+	public function getExecutor(): int
 	{
 		return $this->executor;
 	}
@@ -235,9 +235,9 @@ class Mode
 	/**
 	 * Install mode is when the local config file is missing or the DB schema hasn't been installed yet.
 	 *
-	 * @return bool
+	 * @return bool Whether installation mode is active (local/database configuration files present or not)
 	 */
-	public function isInstall()
+	public function isInstall(): bool
 	{
 		return !$this->has(Mode::LOCALCONFIGPRESENT) ||
 		       !$this->has(MODE::DBCONFIGAVAILABLE);
@@ -248,7 +248,7 @@ class Mode
 	 *
 	 * @return bool
 	 */
-	public function isNormal()
+	public function isNormal(): bool
 	{
 		return $this->has(Mode::LOCALCONFIGPRESENT) &&
 		       $this->has(Mode::DBAVAILABLE) &&
@@ -261,7 +261,7 @@ class Mode
 	 *
 	 * @return bool Is it a backend call
 	 */
-	public function isBackend()
+	public function isBackend(): bool
 	{
 		return $this->isBackend;
 	}
@@ -271,7 +271,7 @@ class Mode
 	 *
 	 * @return bool true if it was an AJAX request
 	 */
-	public function isAjax()
+	public function isAjax(): bool
 	{
 		return $this->isAjax;
 	}
@@ -281,7 +281,7 @@ class Mode
 	 *
 	 * @return bool true if it was an mobile request
 	 */
-	public function isMobile()
+	public function isMobile(): bool
 	{
 		return $this->isMobile;
 	}
@@ -291,7 +291,7 @@ class Mode
 	 *
 	 * @return bool true if it was an tablet request
 	 */
-	public function isTablet()
+	public function isTablet(): bool
 	{
 		return $this->isTablet;
 	}

src/App/Page.php

@@ -195,7 +195,7 @@ class Page implements ArrayAccess
 	 * @param string $media
 	 * @see Page::initHead()
 	 */
-	public function registerStylesheet($path, string $media = 'screen')
+	public function registerStylesheet(string $path, string $media = 'screen')
 	{
 		$path = Network::appendQueryParam($path, ['v' => FRIENDICA_VERSION]);
 
@@ -288,7 +288,7 @@ class Page implements ArrayAccess
 	 *
 	 * Taken from http://webcheatsheet.com/php/get_current_page_url.php
 	 */
-	private function curPageURL()
+	private function curPageURL(): string
 	{
 		$pageURL = 'http';
 		if (!empty($_SERVER["HTTPS"]) && ($_SERVER["HTTPS"] == "on")) {

src/App/Router.php

@@ -152,7 +152,7 @@ class Router
 	 *
 	 * @throws HTTPException\InternalServerErrorException In case of invalid configs
 	 */
-	public function loadRoutes(array $routes)
+	public function loadRoutes(array $routes): Router
 	{
 		$routeCollector = ($this->routeCollector ?? new RouteCollector(new Std(), new GroupCountBased()));
 
@@ -166,6 +166,13 @@ class Router
 		return $this;
 	}
 
+	/**
+	 * Adds multiple routes to a route collector
+	 *
+	 * @param RouteCollector $routeCollector Route collector instance
+	 * @param array $routes Multiple routes to be added
+	 * @throws HTTPException\InternalServerErrorException If route was wrong (somehow)
+	 */
 	private function addRoutes(RouteCollector $routeCollector, array $routes)
 	{
 		foreach ($routes as $route => $config) {
@@ -221,7 +228,7 @@ class Router
 	 *
 	 * @return bool
 	 */
-	private function isRoute(array $config)
+	private function isRoute(array $config): bool
 	{
 		return
 			// The config array should at least have one entry
@@ -253,7 +260,7 @@ class Router
 	 * @throws HTTPException\MethodNotAllowedException    If a rule matched but the method didn't
 	 * @throws HTTPException\NotFoundException            If no rule matched
 	 */
-	private function getModuleClass()
+	private function getModuleClass(): string
 	{
 		$cmd = $this->args->getCommand();
 		$cmd = '/' . ltrim($cmd, '/');