src/Composer/Config.php
public function prohibitUrlByConfig($url, IOInterface $io = null)
    {
        // Return right away if the URL is malformed or custom (see issue #5173)
        if (false === filter_var($url, FILTER_VALIDATE_URL)) {
            return;
        }

        // Extract scheme and throw exception on known insecure protocols
        $scheme = parse_url($url, PHP_URL_SCHEME);
        if (in_array($scheme, array('http', 'git', 'ftp', 'svn'))) {
            if ($this->get('secure-http')) {
                throw new TransportException("Your configuration does not allow connections to $url. See https://getcomposer.org/doc/06-config.md#secure-http for details.");
            } elseif ($io) {
                $host = parse_url($url, PHP_URL_HOST);
                if (!isset($this->warnedHosts[$host])) {
                    $io->writeError("<warning>Warning: Accessing $host over $scheme which is an insecure protocol.</warning>");
                }
                $this->warnedHosts[$host] = true;
            }
        }
    }
public function prohibitUrlByConfig($url, IOInterface $io = null)
    {
        // Return right away if the URL is malformed or custom (see issue #5173)
        if (false === filter_var($url, FILTER_VALIDATE_URL)) {
            return;
        }

        // Extract scheme and throw exception on known insecure protocols
        $scheme = parse_url($url, PHP_URL_SCHEME);
        if (in_array($scheme, array('http', 'git', 'ftp', 'svn'))) {
            if ($this->get('secure-http')) {
                throw new TransportException("Your configuration does not allow connections to $url. See https://getcomposer.org/doc/06-config.md#secure-http for details.");
            } elseif ($io) {
                $host = parse_url($url, PHP_URL_HOST);
                if (!isset($this->warnedHosts[$host])) {
                    $io->writeError("<warning>Warning: Accessing $host over $scheme which is an insecure protocol.</warning>");
                }
                $this->warnedHosts[$host] = true;
            }
        }
    }
public function prohibitUrlByConfig ( $ url , IOInterface $ io = null ) { // Return right away if the URL is malformed or custom (see issue #5173) if ( false === filter_var ( $ url , FILTER_VALIDATE_URL ) ) { return ; } // Extract scheme and throw exception on known insecure protocols $ scheme = parse_url ( $ url , PHP_URL_SCHEME ) ; if ( in_array ( $ scheme , array ( 'http' , 'git' , 'ftp' , 'svn' ) ) ) { if ( $ this -> get ( 'secure-http' ) ) { throw new TransportException ( "Your configuration does not allow connections to $url. See https://getcomposer.org/doc/06-config.md#secure-http for details." ) ; } elseif ( $ io ) { $ host = parse_url ( $ url , PHP_URL_HOST ) ; if ( ! isset ( $ this -> warnedHosts [ $ host ] ) ) { $ io -> writeError ( "<warning>Warning: Accessing $host over $scheme which is an insecure protocol.</warning>" ) ; } $ this -> warnedHosts [ $ host ] = true ; } } }
Validates that the passed URL is allowed to be used by current config, or throws an exception.

@param string      $url
@param IOInterface $io
Validates that the passed URL is allowed to be used by current config or throws an exception .