<?php
$GLOBALS['plugins'][]['ngxc'] = array(
	'name' => 'NGXConfigurator',
	'author' => 'Vertig0ne',
	'category' => 'Web Server',
	'link' => 'https://github.com/vertig0ne/organizr-ngxc',
	'idPrefix' => 'ngxc',
	'configPrefix' => 'ngxc',
	'version' => '0.2.0',
	'image' => 'plugins/images/ngxc.png',
	'settings' => true,
	'homepage' => false,
	'license' => 'personal,business'
);
###############
## INTERNAL FUNCTIONS
###############
function _ngxcTypeOptions()
{
	$_ngxcTypes = array(
		'none' => 'None',
		'airsonic' => 'AirSonic',
		'calibre-web' => 'Calibre-Web',
		'calibre-webBlur' => 'Calibre-Web (Blur Theme)',
		'deluge' => 'Deluge',
		'guacamole' => 'Guacamole',
		'jackett' => 'Jackett',
		'lazylibrarian' => 'LazyLibrarian',
		'lidarr' => 'Lidarr',
		'mylar' => 'Mylar',
		'netdata' => 'NetData',
		'nowshowing' => 'NowShowing',
		'nzbget' => 'NZBGet',
		'nzbgetDark' => 'NZBGet (Dark Theme)',
		'nzbhydra' => 'NZBHydra',
		'ombi' => 'Ombi',
		'plex' => 'Plex',
		'qbittorrent' => 'qbittorrent',
		'radarr' => 'Radarr',
		'radarrDarker' => 'Radarr (Darkerr Theme)',
		'rutorrent' => 'rUtorrent',
		'sonarr' => 'Sonarr',
		'sonarrDarker' => 'Sonarr (Darkerr Theme)',
		'tautulli' => 'Tautulli',
		'ubooquity' => 'Ubooquity',
		'youtube-dl' => 'YouTube-DL Server'
	);
	$data = array();
	$t = 0;
	foreach ($_ngxcTypes as $key => $value) {
		$data[$t] = array(
			"name" => $value,
			"value" => $key
		);
		$t++;
	}
	return $data;
}

function _ngxcGetAllTabs()
{
	return allTabs();
}

function _ngxcGetTabs()
{
	$tabs = _ngxcGetAllTabs();
	$types = _ngxcTypeOptions();
	$data = array();
	foreach ($tabs["tabs"] as $tab) {
		if ($tab['name'] != "Homepage" && $tab['name'] != "Settings") {
			$name = strtoupper(str_replace(' ', '_', $tab['name']));
			$data[$tab['name']] = array(
				array(
					'type' => 'select',
					'name' => 'NGXC_' . $name . '_TYPE',
					'label' => 'Type of Proxy',
					'value' => isset($GLOBALS['NGXC_' . $name . '_TYPE']) ? $GLOBALS['NGXC_' . $name . '_TYPE'] : 'None',
					'options' => $types
				),
				array(
					'type' => 'input',
					'name' => 'NGXC_' . $name . '_URL',
					'label' => 'Proxy URL',
					'value' => isset($GLOBALS['NGXC_' . $name . '_URL']) ? $GLOBALS['NGXC_' . $name . '_URL'] : '',
				)
			);
		}
	}
	return $data;
}

function _ngxcWriteTabConfig($tab)
{
	$name = strtoupper(str_replace(' ', '_', $tab["name"]));
	$nameLower = strtolower(str_replace(' ', '_', $tab["name"]));
	$type = $GLOBALS['NGXC_' . $name . '_TYPE'];
	$path = $tab["url"];
	$url = $GLOBALS['NGXC_' . $name . '_URL'];
	switch ($type) {
		case "sonarr":
		case "radarr":
		case "lidarr":
			return _ngxcWriteTabSonarrConfig($url, $path, $nameLower, $tab["group_id"]);
			break;
		case "sonarrDarker":
		case "radarrDarker":
			return _ngxcWriteTabSonarrConfig($url, $path, $nameLower, $tab["group_id"], true);
			break;
		case "airsonic":
			return _ngxcWriteTabAirSonicConfig($url, $path, $nameLower, $tab["group_id"]);
			break;
		case "calibre-web":
			return _ngxcWriteTabCalibreWebConfig($url, $path, $nameLower, $tab["group_id"]);
			break;
		case "calibre-webBlur":
			return _ngxcWriteTabCalibreWebConfig($url, $path, $nameLower, $tab["group_id"], true);
			break;
		case "deluge":
			return _ngxcWriteTabDelugeConfig($url, $path, $nameLower, $tab["group_id"]);
			break;
		case "guacamole":
			return _ngxcWriteTabGuacamoleConfig($url, $path, $nameLower, $tab["group_id"]);
			break;
		case "jackett":
			return _ngxcWriteTabJackettConfig($url, $path, $nameLower, $tab["group_id"]);
			break;
		case "mylar":
		case "lazylibrarian":
			return _ngxcWriteTabMylarConfig($url, $path, $nameLower, $tab["group_id"]);
			break;
		case "netdata":
			return _ngxcWriteTabNetdataConfig($url, $path, $nameLower, $tab["group_id"]);
			break;
		case "nowshowing":
			return _ngxcWriteTabNowshowingConfig($url, $path, $nameLower, $tab["group_id"]);
			break;
		case "nzbget":
			return _ngxcWriteTabNzbGetConfig($url, $path, $nameLower, $tab["group_id"]);
			break;
		case "nzbgetDark":
			return _ngxcWriteTabNzbGetConfig($url, $path, $nameLower, $tab["group_id"], true);
			break;
		case "nzbhydra":
			_ngxcWriteTabNzbHydraConfig($url, $path, $nameLower, $tab["group_id"]);
			break;
		case "ombi":
			return _ngxcWriteTabOmbiConfig($url, $path, $nameLower, $tab["group_id"]);
			break;
		case "plex":
			return _ngxcWriteTabPlexConfig($url, $path, $nameLower, $tab["group_id"]);
			break;
		case "qbittorrent":
			return _ngxcWriteTabQbittorrentConfig($url, $path, $nameLower, $tab["group_id"]);
			break;
		case "tautulli":
			return _ngxcWriteTabTautulliConfig($url, $path, $nameLower, $tab["group_id"]);
			break;
		case "transmission":
			return _ngxcWriteTabTransmissionConfig($url, $path, $nameLower, $tab["group_id"]);
			break;
		case "ubooquity":
			return _ngxcWriteTabUbooquityConfig($url, $path, $nameLower, $tab["group_id"]);
			break;
		case "rutorrent":
			return _ngxcWriteTabRutorrentConfig($url, $path, $nameLower, $tab["group_id"]);
			break;
	}
}

###############
## CONFIGURATION WRITERS
###############
function _ngxcWriteTabSonarrConfig($url, $path, $name, $group, $theme = false)
{
	$data =
		"location $path {
        auth_request /auth-$group;
        proxy_pass $url/;
        proxy_set_header X-Real-IP \$remote_addr; 
        proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto \$scheme;
        proxy_http_version 1.1;
        proxy_no_cache \$cookie_session;";
	if ($theme) {
		$data .=
			"proxy_set_header Accept-Encoding \"\";
        sub_filter '</head>' '<link rel=\"stylesheet\" type=\"text/css\" href=\"https://rawgit.com/iFelix18/Darkerr/master/darkerr.css\"></head>';
        sub_filter_once on;\n";
	}
	$data .=
		"location " . $path . "api {
                auth_request off;
                proxy_pass $url/api;
        }
}";
	$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/proxy' . '/' . $name . '.conf', $data) !== false);
	return $result;
}

function _ngxcWriteTabAirSonicConfig($url, $path, $name, $group)
{
	$data = "
        location $path {
                auth_request /auth-$group;
                proxy_set_header X-Real-IP         \$remote_addr;
                proxy_set_header X-Forwarded-For   \$proxy_add_x_forwarded_for;
                proxy_set_header X-Forwarded-Proto \$scheme;
                proxy_set_header X-Forwarded-Host  \$http_host;
                proxy_set_header Host              \$http_host;
                proxy_max_temp_file_size           0;
                proxy_pass                         $url/;
                proxy_redirect                     http:// https://;
        }";
	$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/proxy' . '/' . $name . '.conf', $data) !== false);
	return $result;
}

function _ngxcWriteTabCalibreWebConfig($url, $path, $name, $group, $theme = false)
{
	$data = "

        location $path {
                proxy_bind \$server_addr;
                proxy_pass $url;
                proxy_set_header Host \$http_host;
                proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
                proxy_set_header X-Scheme \$scheme;
                proxy_set_header X-Script-Name $path;
                ";
	if ($theme) {
		$data .= "
                set \$filter_output '<link rel=\"stylesheet\" type=\"text/css\" href=\"https://rawgit.com/leram84/layer.Cake/dev/CSS/caliBlur-Demo.css\"></head>';
            
                if (\$http_user_agent ~* '(iPhone|iPod|android|blackberry)') {
                    set \$filter_output '</head>';
                }
                if (\$request_uri ~* '(\/read\/)') {
                    set \$filter_output '</head>';
                }
            
                proxy_set_header Accept-Encoding \"\";
                sub_filter '</head>' \$filter_output;
                sub_filter_once on;\n";
	}
	$data .= "}";
	$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/proxy' . '/' . $name . '.conf', $data) !== false);
	return $result;
}

function _ngxcWriteTabDelugeConfig($url, $path, $name, $group)
{
	$data = "
        location $path {
                auth_request /auth-$group;
                proxy_pass $url/;
                proxy_set_header X-Deluge-Base \"$path\";
                proxy_set_header Host \$host;
                proxy_set_header X-Real-IP \$remote_addr;
                proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
                proxy_set_header X-Forwarded-Proto https;
                proxy_redirect  http://  \$scheme://;
                proxy_http_version 1.1;
                proxy_set_header Connection \"\";
                proxy_cache_bypass \$cookie_session;
                proxy_no_cache \$cookie_session;
                proxy_buffers 32 4k;
                add_header X-Frame-Options SAMEORIGIN;
        }";
	$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/proxy' . '/' . $name . '.conf', $data) !== false);
	return $result;
}

function _ngxcWriteTabGuacamoleConfig($url, $path, $name, $group)
{
	$data = "
        location $path {
                auth_request /auth-$group;
                proxy_pass $url/;
                proxy_buffering off;
                proxy_set_header Upgrade \$http_upgrade;
                proxy_set_header Connection \$http_connection;
                proxy_set_header X-Real-IP \$remote_addr;
                proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
                proxy_set_header X-Forwarded-Proto \$scheme;
                proxy_http_version 1.1;
                proxy_no_cache \$cookie_session;
        }";
	$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/proxy' . '/' . $name . '.conf', $data) !== false);
	return $result;
}

function _ngxcWriteTabJackettConfig($url, $path, $name, $group)
{
	$data = "
        location $path {
                auth_request /auth-$group;
                proxy_pass $url/;
                proxy_set_header Host \$host;
                proxy_set_header X-Real-IP \$remote_addr;
                proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
                proxy_set_header X-Forwarded-Proto https;
                proxy_redirect  http://  \$scheme://;
                proxy_http_version 1.1;
                proxy_set_header Connection \"\";
                proxy_cache_bypass \$cookie_session;
                proxy_no_cache \$cookie_session;
                proxy_buffers 32 4k;
              }";
	$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/proxy' . '/' . $name . '.conf', $data) !== false);
	return $result;
}

function _ngxcWriteTabMylarConfig($url, $path, $name, $group)
{
	$data = "
        location $path {
                auth_request /auth-$group;
                proxy_pass $url/;
                proxy_set_header Host \$host;
                proxy_set_header X-Real-IP \$remote_addr;
                proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
                proxy_set_header X-Forwarded-Proto \$scheme;
        }";
	$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/proxy' . '/' . $name . '.conf', $data) !== false);
	return $result;
}

function _ngxcWriteTabNetdataConfig($url, $path, $name, $group)
{
	$data = "
        location $path {
                auth_request /auth-$group;
                proxy_redirect off;
                proxy_set_header Host \$host;
                proxy_set_header X-Forwarded-Host \$host;
                proxy_set_header X-Forwarded-Server \$host;
                proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
                proxy_http_version 1.1;
                proxy_pass_request_headers on;
                proxy_set_header Connection \"keep-alive\";
                proxy_store off;
                proxy_pass $url/;
        }";
	$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/proxy' . '/' . $name . '.conf', $data) !== false);
	return $result;
}

function _ngxcWriteTabNowshowingConfig($url, $path, $name, $group)
{
	$data = "
        location $path {
                auth_request /auth-$group;
                proxy_set_header Host \$host;
                proxy_set_header X-Forwarded-Host \$host;
                proxy_set_header X-Forwarded-Server \$host;
                proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
                proxy_http_version 1.1;
                proxy_pass_request_headers on;
                proxy_set_header Connection \"keep-alive\";
                proxy_pass $url/;
        }";
	$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/proxy' . '/' . $name . '.conf', $data) !== false);
	return $result;
}

function _ngxcWriteTabNzbGetConfig($url, $path, $name, $group, $theme = false)
{
	$data = "
        location $path {
                auth_request /auth-$group;
                proxy_pass $url/;
                proxy_set_header X-Real-IP \$remote_addr;
                proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
                proxy_set_header X-Forwarded-Proto \$scheme;
                proxy_http_version 1.1;
                proxy_no_cache \$cookie_session;
                proxy_set_header Accept-Encoding \"\";
                proxy_set_header Host \$host;
        ";
	if ($theme) {
		$data .= "
                sub_filter '</head>' '<link rel=\"stylesheet\" type=\"text/css\" href=\"https://rawgit.com/ydkmlt84/DarkerNZBget/develop/nzbget_custom_darkblue.css\"></head>';
                sub_filter_once on;
                ";
	}
	$data .= "
        }";
	$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/proxy' . '/' . $name . '.conf', $data) !== false);
	return $result;
}

function _ngxcWriteTabNzbHydraConfig($url, $path, $name, $group)
{
	$data = "
        location $path {
                auth_request /auth-$group;
                proxy_pass $url/;
                proxy_set_header X-Real-IP \$remote_addr;
                proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
                proxy_set_header X-Forwarded-Proto \$scheme;
                proxy_http_version 1.1;
                proxy_no_cache \$cookie_session;
        }";
	$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/proxy' . '/' . $name . '.conf', $data) !== false);
	return $result;
}

function _ngxcWriteTabOmbiConfig($url, $path, $name, $group)
{
	$data = "
        location $path {
                auth_request /auth-$group;
                proxy_pass  $url/;
                proxy_cache_bypass \$http_upgrade;
                proxy_set_header Connection keep-alive;
                proxy_set_header Upgrade \$http_upgrade;
                proxy_set_header X-Forwarded-Host \$server_name;
                proxy_set_header X-Forwarded-Ssl on;
                proxy_set_header X-Real-IP \$remote_addr;
                proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
                proxy_set_header X-Forwarded-Proto \$scheme;
                proxy_http_version 1.1;
                proxy_no_cache \$cookie_session;
                proxy_set_header Host \$host;
        }
        location /dist/ {
                return 301 $path\$request_uri;
        }";
	$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/proxy' . '/' . $name . '.conf', $data) !== false);
	return $result;
}

function _ngxcWriteTabPlexConfig($url, $path, $name, $group)
{
	$data = "
        location $path {
                return 301 /web;
        }
        location ~ ^/(\?(?:.*)(X-Plex-Device=)|web|video|photo|library|web|status|system|updater|clients|:|playQueues)(.*) {
                proxy_pass $url;
                proxy_redirect  $url /;
                proxy_set_header X-Real-IP \$remote_addr;
                proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
                proxy_redirect off;
                proxy_set_header Host \$host;
                proxy_http_version 1.1;
                proxy_set_header Upgrade \$http_upgrade;
                proxy_set_header Connection \"upgrade\";
                proxy_read_timeout 36000s;
                proxy_pass_request_headers on;
        }";
	$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/proxy' . '/' . $name . '.conf', $data) !== false);
	return $result;
}

function _ngxcWriteTabQbittorrentConfig($url, $path, $name, $group)
{
	$data = "
        location ~ $path(?<url>.*) {
                auth_request /auth-$group;
                proxy_pass  $path\$url;
                proxy_set_header X-Forwarded-Host \$host;
                proxy_hide_header Referer;
                proxy_hide_header Origin;
                proxy_set_header Referer '';
                proxy_set_header Origin '';
                add_header X-Frame-Options \"SAMEORIGIN\";
        }";
	$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/proxy' . '/' . $name . '.conf', $data) !== false);
	return $result;
}

function _ngxcWriteTabRutorrentConfig($url, $path, $name, $group)
{
	$data = "
        location $path {
                auth_request /auth-$group;
                proxy_pass $url/;
                proxy_set_header Host \$server_name;
                proxy_set_header X-Real-IP \$remote_addr;
                proxy_set_header X-Forwarded-Host \$server_name;
                proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
                proxy_redirect off;
        }";
	$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/proxy' . '/' . $name . '.conf', $data) !== false);
	return $result;
}

function _ngxcWriteTabTautulliConfig($url, $path, $name, $group)
{
	$data = "
        location $path {
                auth_request /auth-$group;
                proxy_pass $url/;
                proxy_set_header X-Forwarded-Host \$server_name;
                proxy_set_header X-Real-IP \$remote_addr;
                proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
                proxy_set_header X-Forwarded-Proto \$scheme;
                proxy_http_version 1.1;
                proxy_no_cache \$cookie_session;
                location " . $path . "api/ {
                        auth_request off;
                        proxy_pass $url/api/;
                }
        }";
	$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/proxy' . '/' . $name . '.conf', $data) !== false);
	return $result;
}

function _ngxcWriteTabTransmissionConfig($url, $path, $name, $group)
{
	$data = "
        location $path {
                auth_request /auth-$group;
                proxy_set_header X-Real-IP \$remote_addr;
                proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
                proxy_set_header Host \$http_host;
                proxy_set_header X-NginX-Proxy true;
                proxy_http_version 1.1;
                proxy_set_header Connection \"\";
                proxy_pass_header X-Transmission-Session-Id;
                add_header Front-End-Https   on;
                location " . $path . "rpc {
                  proxy_pass $url/rpc;
                }
                location " . $path . "web {
                  proxy_pass $url/web;
                }
                location " . $path . "upload {
                  proxy_pass $url/upload;
                }
                location /transmission {
                  return 301 https://\$server_name" . $path . "web;
                }
        }";
	$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/proxy' . '/' . $name . '.conf', $data) !== false);
	return $result;
}

function _ngxcWriteTabUbooquityConfig($url, $path, $name, $group)
{
	$data = "
        location $path {
                auth_request /auth-$group;
                proxy_pass $url/;
                proxy_set_header Host \$host;
                proxy_set_header X-Real-IP \$remote_addr;
                proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
        }";
	$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/proxy' . '/' . $name . '.conf', $data) !== false);
	return $result;
}

###############
## PUBLIC FUNCTIONS
###############
function NGXCGetSettings()
{
	$data = array(
		"Core" => array(
			array(
				'type' => 'input',
				'name' => 'NGXC_SAVE_PATH',
				'label' => 'Configuration Save Path',
				'value' => $GLOBALS['NGXC_SAVE_PATH'] ?: $GLOBALS['dbLocation']
			)
		)
	);
	$data = array_merge($data, _ngxcGetTabs());
	$data['Actions'] = array(
		array(
			'type' => 'button',
			'label' => 'Write Config',
			'class' => 'ngxc-write-config',
			'icon' => 'fa fa-save',
			'text' => 'Write Config'
		)
	);
	return $data;
}

function NGXCWriteConfig()
{
	if (!is_writable($GLOBALS['NGXC_SAVE_PATH'])) {
		return false;
	}
	if (!file_exists($GLOBALS['NGXC_SAVE_PATH'] . '/proxy')) {
		mkdir($GLOBALS['NGXC_SAVE_PATH'] . '/proxy', 0777, true);
	}
	$tabs = _ngxcGetAllTabs();
	$return = true;
	foreach ($tabs["tabs"] as $tab) {
		$res = _ngxcWriteTabConfig($tab);
		if ($res === false) $return = false;
	}
	$file_contents = "location ~ /auth-(.*) {
                internal;
                rewrite ^/auth-(.*) /api/?v1/auth&group=$1;
        }\n";
	$file_contents .= "include " . $GLOBALS['NGXC_SAVE_PATH'] . "/proxy/*.conf;\n";
	if ($return) {
		$result = (file_put_contents($GLOBALS['NGXC_SAVE_PATH'] . '/ngxc.conf', $file_contents) !== false);
		return (bool)$result;
	}
	return $return;
}