<commit_before><?php
namespace GamajoTech\OAuth;

class OAuthRequest
{
    protected $parameters;
    protected $http_method;
    protected $http_url;
    // for debug purposes
    public $base_string;
    public static $version = '1.0';
    public static $POST_INPUT = 'php://input';

    public function __construct($http_method, $http_url, $parameters = null)
    {
        $parameters = ($parameters) ? $parameters : array();
        $this->parameters = array_merge(Util::parseParameters(parse_url($http_url, PHP_URL_QUERY)), $parameters);
        $this->http_method = $http_method;
        $this->http_url = $http_url;
    }

    /**
     * attempt to build up a request from what was passed to the server
     */
    public static function fromRequest($http_method = null, $http_url = null, $parameters = null)
    {
        $scheme = (!isset($_SERVER['HTTPS']) || $_SERVER['HTTPS'] != "on") ? 'http' : 'https';
        $http_url = ($http_url) ? $http_url : $scheme .
            '://' . $_SERVER['HTTP_HOST'] .
            ':' .
            $_SERVER['SERVER_PORT'] .
            $_SERVER['REQUEST_URI'];
        $http_method = ($http_method) ? $http_method : $_SERVER['REQUEST_METHOD'];

        // We weren't handed any parameters, so let's find the ones relevant to
        // this request.
        // If you run XML-RPC or similar you should use this to provide your own
        // parsed parameter-list
        if (!$parameters) {
            // Find request headers
            $request_headers = Util::getHeaders();

            // Parse the query-string to find GET parameters
            $parameters = Util::parseParameters($_SERVER['QUERY_STRING']);

            // It's a POST request of the proper content-type, so parse POST
            // parameters and add those overriding any duplicates from GET
            if ($http_method == "POST"
                && isset($request_headers['Content-Type'])
                && strstr($request_headers['Content-Type'], 'application/x-www-form-urlencoded')
            ) {
                $post_data = Util::parseParameters(
                    file_get_contents(self::$POST_INPUT)
                );
                $parameters = array_merge($parameters, $post_data);
            }

            // We have a Authorization-header with OAuth data. Parse the header
            // and add those overriding any duplicates from GET or POST
            if (isset($request_headers['Authorization']) &&
                substr($request_headers['Authorization'], 0, 6) == 'OAuth ') {
                $header_parameters = Util::splitHeader(
                    $request_headers['Authorization']
                );
                $parameters = array_merge($parameters, $header_parameters);
            }
        }

        return new OAuthRequest($http_method, $http_url, $parameters);
    }

    /**
     * pretty much a helper function to set up the request
     */
    public static function fromConsumerAndToken($consumer, $token, $http_method, $http_url, $parameters = null)
    {
        $parameters = ($parameters) ? $parameters : array();
        $defaults = array("oauth_version" => OAuthRequest::$version,
            "oauth_nonce" => OAuthRequest::generateNonce(),
            "oauth_timestamp" => OAuthRequest::generateTimestamp(),
            "oauth_consumer_key" => $consumer->key);
        if ($token) {
            $defaults['oauth_token'] = $token->key;
        }

        $parameters = array_merge($defaults, $parameters);

        return new OAuthRequest($http_method, $http_url, $parameters);
    }

    public function setParameter($name, $value, $allow_duplicates = true)
    {
        if ($allow_duplicates && isset($this->parameters[$name])) {
            // We have already added parameter(s) with this name, so add to the list
            if (is_scalar($this->parameters[$name])) {
                // This is the first duplicate, so transform scalar (string)
                // into an array so we can add the duplicates
                $this->parameters[$name] = array($this->parameters[$name]);
            }

            $this->parameters[$name][] = $value;
        } else {
            $this->parameters[$name] = $value;
        }
    }

    public function getParameter($name)
    {
        return isset($this->parameters[$name]) ? $this->parameters[$name] : null;
    }

    public function getParameters()
    {
        return $this->parameters;
    }

    public function unsetParameter($name)
    {
        unset($this->parameters[$name]);
    }

    /**
     * The request parameters, sorted and concatenated into a normalized string.
     * @return string
     */
    public function getSignableParameters()
    {
        // Grab all parameters
        $params = $this->parameters;

        // Remove oauth_signature if present
        // Ref: Spec: 9.1.1 ("The oauth_signature parameter MUST be excluded.")
        if (isset($params['oauth_signature'])) {
            unset($params['oauth_signature']);
        }

        return Util::buildHttpQuery($params);
    }

    /**
     * Returns the base string of this request
     *
     * The base string defined as the method, the url
     * and the parameters (normalized), each urlencoded
     * and the concated with &.
     */
    public function getSignatureBaseString()
    {
        $parts = array(
            $this->getNormalizedHttpMethod(),
            $this->getNormalizedHttpUrl(),
            $this->getSignableParameters()
        );

        $encoded_parts = Util::urlencodeRfc3986($parts);

        return implode('&', $encoded_parts);
    }

    /**
     * Just uppercases the http method
     */
    public function getNormalizedHttpMethod()
    {
        return strtoupper($this->http_method);
    }

    /**
     * parses the url and rebuilds it to be
     * scheme://host/path
     */
    public function getNormalizedHttpUrl()
    {
        $parts = parse_url($this->http_url);

        $scheme = (isset($parts['scheme'])) ? $parts['scheme'] : 'http';
        $port = (isset($parts['port'])) ? $parts['port'] : (($scheme == 'https') ? '443' : '80');
        $host = (isset($parts['host'])) ? $parts['host'] : '';
        $path = (isset($parts['path'])) ? $parts['path'] : '';

        if (($scheme == 'https' && $port != '443')
            || ($scheme == 'http' && $port != '80')) {
            $host = "$host:$port";
        }
        return "$scheme://$host$path";
    }

    /**
     * builds a url usable for a GET request
     */
    public function toUrl()
    {
        $post_data = $this->toPostdata();
        $out = $this->getNormalizedHttpUrl();
        if ($post_data) {
            $out .= '?' . $post_data;
        }
        return $out;
    }

    /**
     * builds the data one would send in a POST request<commit_msg>Fix issue for PHP 5.4.8 where the host part from parse_url seems to also include the port as well.<commit_after><?php
namespace GamajoTech\OAuth;

class OAuthRequest
{
    protected $parameters;
    protected $http_method;
    protected $http_url;
    // for debug purposes
    public $base_string;
    public static $version = '1.0';
    public static $POST_INPUT = 'php://input';

    public function __construct($http_method, $http_url, $parameters = null)
    {
        $parameters = ($parameters) ? $parameters : array();
        $this->parameters = array_merge(Util::parseParameters(parse_url($http_url, PHP_URL_QUERY)), $parameters);
        $this->http_method = $http_method;
        $this->http_url = $http_url;
    }

    /**
     * attempt to build up a request from what was passed to the server
     */
    public static function fromRequest($http_method = null, $http_url = null, $parameters = null)
    {
        $scheme = (!isset($_SERVER['HTTPS']) || $_SERVER['HTTPS'] != "on") ? 'http' : 'https';
        $http_url = ($http_url) ? $http_url : $scheme .
            '://' . $_SERVER['HTTP_HOST'] .
            ':' .
            $_SERVER['SERVER_PORT'] .
            $_SERVER['REQUEST_URI'];
        $http_method = ($http_method) ? $http_method : $_SERVER['REQUEST_METHOD'];

        // We weren't handed any parameters, so let's find the ones relevant to
        // this request.
        // If you run XML-RPC or similar you should use this to provide your own
        // parsed parameter-list
        if (!$parameters) {
            // Find request headers
            $request_headers = Util::getHeaders();

            // Parse the query-string to find GET parameters
            $parameters = Util::parseParameters($_SERVER['QUERY_STRING']);

            // It's a POST request of the proper content-type, so parse POST
            // parameters and add those overriding any duplicates from GET
            if ($http_method == "POST"
                && isset($request_headers['Content-Type'])
                && strstr($request_headers['Content-Type'], 'application/x-www-form-urlencoded')
            ) {
                $post_data = Util::parseParameters(
                    file_get_contents(self::$POST_INPUT)
                );
                $parameters = array_merge($parameters, $post_data);
            }

            // We have a Authorization-header with OAuth data. Parse the header
            // and add those overriding any duplicates from GET or POST
            if (isset($request_headers['Authorization']) &&
                substr($request_headers['Authorization'], 0, 6) == 'OAuth ') {
                $header_parameters = Util::splitHeader(
                    $request_headers['Authorization']
                );
                $parameters = array_merge($parameters, $header_parameters);
            }
        }

        return new OAuthRequest($http_method, $http_url, $parameters);
    }

    /**
     * pretty much a helper function to set up the request
     */
    public static function fromConsumerAndToken($consumer, $token, $http_method, $http_url, $parameters = null)
    {
        $parameters = ($parameters) ? $parameters : array();
        $defaults = array("oauth_version" => OAuthRequest::$version,
            "oauth_nonce" => OAuthRequest::generateNonce(),
            "oauth_timestamp" => OAuthRequest::generateTimestamp(),
            "oauth_consumer_key" => $consumer->key);
        if ($token) {
            $defaults['oauth_token'] = $token->key;
        }

        $parameters = array_merge($defaults, $parameters);

        return new OAuthRequest($http_method, $http_url, $parameters);
    }

    public function setParameter($name, $value, $allow_duplicates = true)
    {
        if ($allow_duplicates && isset($this->parameters[$name])) {
            // We have already added parameter(s) with this name, so add to the list
            if (is_scalar($this->parameters[$name])) {
                // This is the first duplicate, so transform scalar (string)
                // into an array so we can add the duplicates
                $this->parameters[$name] = array($this->parameters[$name]);
            }

            $this->parameters[$name][] = $value;
        } else {
            $this->parameters[$name] = $value;
        }
    }

    public function getParameter($name)
    {
        return isset($this->parameters[$name]) ? $this->parameters[$name] : null;
    }

    public function getParameters()
    {
        return $this->parameters;
    }

    public function unsetParameter($name)
    {
        unset($this->parameters[$name]);
    }

    /**
     * The request parameters, sorted and concatenated into a normalized string.
     * @return string
     */
    public function getSignableParameters()
    {
        // Grab all parameters
        $params = $this->parameters;

        // Remove oauth_signature if present
        // Ref: Spec: 9.1.1 ("The oauth_signature parameter MUST be excluded.")
        if (isset($params['oauth_signature'])) {
            unset($params['oauth_signature']);
        }

        return Util::buildHttpQuery($params);
    }

    /**
     * Returns the base string of this request
     *
     * The base string defined as the method, the url
     * and the parameters (normalized), each urlencoded
     * and the concated with &.
     */
    public function getSignatureBaseString()
    {
        $parts = array(
            $this->getNormalizedHttpMethod(),
            $this->getNormalizedHttpUrl(),
            $this->getSignableParameters()
        );

        $encoded_parts = Util::urlencodeRfc3986($parts);

        return implode('&', $encoded_parts);
    }

    /**
     * Just uppercases the http method
     */
    public function getNormalizedHttpMethod()
    {
        return strtoupper($this->http_method);
    }

    /**
     * parses the url and rebuilds it to be
     * scheme://host/path
     */
    public function getNormalizedHttpUrl()
    {
        $parts = parse_url($this->http_url);

        $scheme = (isset($parts['scheme'])) ? $parts['scheme'] : 'http';
        $port = (isset($parts['port'])) ? $parts['port'] : '';
        if (isset($parts['host'])) {
            // parse_url in PHP 5.4.8 includes the port in the host, so we need to strip it.
            $host_and_maybe_port = explode(':', $parts['host']);
            $host = $host_and_maybe_port[0];
        } else {
            $host = '';
        }
        // For PHP 5.4+, use:
        // $host = (isset($parts['host'])) ? explode(':', $parts['host'])[0] : '';
        $path = (isset($parts['path'])) ? $parts['path'] : '';

        if (($scheme == 'https' && $port != '443')
            || ($scheme == 'http' && $port != '80')) {
            $host = "$host:$port";
        }
        return "$scheme://$host$path";
    }

    /**
     * builds a url usable for a GET request
     */
    public function toUrl()
    {
        $post_data = $this->toPostdata();
        $out = $this->getNormalizedHttpUrl();
        if ($post_data) {
            $out .= '?' . $post_data;
        }
        return $out;
    }

    /**
     * builds the data one would send in a POST request
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{'dir': 'git-commits-cleaned', 'id': '5030133', 'n_tokens_mistral': 3891, 'n_tokens_neox': 3759, 'n_words': 977}