From 8590e36394ed11a2fcc78882e1e7595c576a1e4f Mon Sep 17 00:00:00 2001
From: Aravindo Wingeier <synox@users.noreply.github.com>
Date: Tue, 25 Dec 2018 22:45:10 -0300
Subject: [PATCH] =?UTF-8?q?fix=20#71=20find=20config.php=20automatically?=
 =?UTF-8?q?=20in=20current=20and=20parent=20directori=E2=80=A6=20(#74)?=
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* fix #71 find config.php automatically. in current and parent directories. Show error message if not found.
---
 CHANGELOG.md     |  6 ++++--
 src/boot.php     | 43 +++++++++++++++++++++++++++++++++++++++++++
 src/index.php    |  9 +++------
 src/json-api.php |  8 +++-----
 4 files changed, 53 insertions(+), 13 deletions(-)
 create mode 100644 src/boot.php

diff --git a/CHANGELOG.md b/CHANGELOG.md
index e7314c2..7592b31 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,12 @@
 # Change Log
-All notable changes to this project will be documented in this file.
+All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](http://keepachangelog.com/).
 
-The format is based on [Keep a Changelog](http://keepachangelog.com/).
 
 ## [Unreleased]
 
+### Changed
+- find config.php automatically in current and parent directories. Show error message if not found. 
+
 ## [0.2.1] - 2018-07-01
 
 ### Breaking Changes
diff --git a/src/boot.php b/src/boot.php
new file mode 100644
index 0000000..86ae958
--- /dev/null
+++ b/src/boot.php
@@ -0,0 +1,43 @@
+<?php
+if (version_compare(phpversion(), '7.2', '<')) {
+    die("ERROR! The php version isn't high enough, you need at least 7.2 to run this application! But you have: " . phpversion());
+}
+
+/**
+ * searches for a config-file in the current and parent directories until found. 
+ * @return path to found config file, or FALSE otherwise. 
+ */
+function find_config($filename='config.php'){
+	// Count the deph of the current directory, so we know how far we can go up. 
+	$path_length = substr_count(getcwd(),DIRECTORY_SEPARATOR)
+		+ 1; // also search the current directory
+
+	$dir = '.'; // updated in each loop
+	for($i=0; $i<$path_length;$i++){
+		$config_filename = $dir . DIRECTORY_SEPARATOR . $filename;
+		if(file_exists($config_filename)){
+			return $config_filename;
+		} else {
+			$dir = '../' . $dir;
+		}
+	}
+	return FALSE;
+}
+
+/**
+ * searches and loads the config file. Prints an error if not found. 
+ */
+function load_config(){
+	global $config;
+	$file = find_config();
+	if ( $file !== FALSE) {
+		require_once($file);
+	} else {
+		die('ERROR: Config file not found. Please see the installation instructions in the README.md');
+	}
+}
+
+load_config();
+
+# load php dependencies:
+require_once './backend-libs/autoload.php';
diff --git a/src/index.php b/src/index.php
index a7daf59..68bb655 100644
--- a/src/index.php
+++ b/src/index.php
@@ -3,11 +3,8 @@ if (version_compare(phpversion(), '7.2', '<')) {
     die("ERROR! The php version isn't high enough, you need at least 7.2 to run this application! But you have: " . phpversion());
 }
 
-# set the new path of config.php (must be in a safe location outside the `public_html`)
-require_once '../../config.php';
-
-# load php dependencies:
-require_once './backend-libs/autoload.php';
+# load config file and dependencies
+require_once './boot.php';
 
 require_once './user.php';
 require_once './imap_client.php';
@@ -24,4 +21,4 @@ $controller->invoke($imapClient);
 // delete after each request
 $imapClient->delete_old_messages($config['delete_messages_older_than']);
 
-?>
\ No newline at end of file
+?>
diff --git a/src/json-api.php b/src/json-api.php
index d4b8f54..3547a76 100644
--- a/src/json-api.php
+++ b/src/json-api.php
@@ -1,9 +1,7 @@
 <?php
-# set the new path of config.php (must be in a safe location outside the `public_html`)
-require_once '../../config.php';
 
-# load php dependencies:
-require_once 'backend-libs/autoload.php';
+# load config file and dependencies
+require_once './boot.php';
 
 require_once 'user.php';
 require_once 'imap_client.php';
@@ -101,4 +99,4 @@ $controller->invoke($imapClient);
 $imapClient->delete_old_messages($config['delete_messages_older_than']);
 
 
-?>
\ No newline at end of file
+?>