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Edit File : Cookie.php \| Size : 12.66 KB
<?php /** * Cookie storage object * * @package Requests * @subpackage Cookies / /* * Cookie storage object * * @package Requests * @subpackage Cookies / class Requests_Cookie { /* * Cookie name. * * @var string / public $name; /* * Cookie value. * * @var string / public $value; /* * Cookie attributes * * Valid keys are (currently) path, domain, expires, max-age, secure and * httponly. * * @var Requests_Utility_CaseInsensitiveDictionary\|array Array-like object / public $attributes = array(); /* * Cookie flags * * Valid keys are (currently) creation, last-access, persistent and * host-only. * * @var array / public $flags = array(); /* * Reference time for relative calculations * * This is used in place of `time()` when calculating Max-Age expiration and * checking time validity. * * @var int / public $reference_time = 0; /* * Create a new cookie object * * @param string $name * @param string $value * @param array\|Requests_Utility_CaseInsensitiveDictionary $attributes Associative array of attribute data / public function __construct($name, $value, $attributes = array(), $flags = array(), $reference_time = null) { $this->name = $name; $this->value = $value; $this->attributes = $attributes; $default_flags = array( 'creation' => time(), 'last-access' => time(), 'persistent' => false, 'host-only' => true, ); $this->flags = array_merge($default_flags, $flags); $this->reference_time = time(); if ($reference_time !== null) { $this->reference_time = $reference_time; } $this->normalize(); } /* * Check if a cookie is expired. * * Checks the age against $this->reference_time to determine if the cookie * is expired. * * @return boolean True if expired, false if time is valid. / public function is_expired() { // RFC6265, s. 4.1.2.2: // If a cookie has both the Max-Age and the Expires attribute, the Max- // Age attribute has precedence and controls the expiration date of the // cookie. if (isset($this->attributes['max-age'])) { $max_age = $this->attributes['max-age']; return $max_age < $this->reference_time; } if (isset($this->attributes['expires'])) { $expires = $this->attributes['expires']; return $expires < $this->reference_time; } return false; } /* * Check if a cookie is valid for a given URI * * @param Requests_IRI $uri URI to check * @return boolean Whether the cookie is valid for the given URI / public function uri_matches(Requests_IRI $uri) { if (!$this->domain_matches($uri->host)) { return false; } if (!$this->path_matches($uri->path)) { return false; } return empty($this->attributes['secure']) \|\| $uri->scheme === 'https'; } /* * Check if a cookie is valid for a given domain * * @param string $string Domain to check * @return boolean Whether the cookie is valid for the given domain / public function domain_matches($string) { if (!isset($this->attributes['domain'])) { // Cookies created manually; cookies created by Requests will set // the domain to the requested domain return true; } $domain_string = $this->attributes['domain']; if ($domain_string === $string) { // The domain string and the string are identical. return true; } // If the cookie is marked as host-only and we don't have an exact // match, reject the cookie if ($this->flags['host-only'] === true) { return false; } if (strlen($string) <= strlen($domain_string)) { // For obvious reasons, the string cannot be a suffix if the domain // is shorter than the domain string return false; } if (substr($string, -1 strlen($domain_string)) !== $domain_string) { // The domain string should be a suffix of the string. return false; } $prefix = substr($string, 0, strlen($string) - strlen($domain_string)); if (substr($prefix, -1) !== '.') { // The last character of the string that is not included in the // domain string should be a %x2E (".") character. return false; } // The string should be a host name (i.e., not an IP address). return !preg_match('#^(.+\.)\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$#', $string); } /** * Check if a cookie is valid for a given path * * From the path-match check in RFC 6265 section 5.1.4 * * @param string $request_path Path to check * @return boolean Whether the cookie is valid for the given path / public function path_matches($request_path) { if (empty($request_path)) { // Normalize empty path to root $request_path = '/'; } if (!isset($this->attributes['path'])) { // Cookies created manually; cookies created by Requests will set // the path to the requested path return true; } $cookie_path = $this->attributes['path']; if ($cookie_path === $request_path) { // The cookie-path and the request-path are identical. return true; } if (strlen($request_path) > strlen($cookie_path) && substr($request_path, 0, strlen($cookie_path)) === $cookie_path) { if (substr($cookie_path, -1) === '/') { // The cookie-path is a prefix of the request-path, and the last // character of the cookie-path is %x2F ("/"). return true; } if (substr($request_path, strlen($cookie_path), 1) === '/') { // The cookie-path is a prefix of the request-path, and the // first character of the request-path that is not included in // the cookie-path is a %x2F ("/") character. return true; } } return false; } /* * Normalize cookie and attributes * * @return boolean Whether the cookie was successfully normalized / public function normalize() { foreach ($this->attributes as $key => $value) { $orig_value = $value; $value = $this->normalize_attribute($key, $value); if ($value === null) { unset($this->attributes[$key]); continue; } if ($value !== $orig_value) { $this->attributes[$key] = $value; } } return true; } /* * Parse an individual cookie attribute * * Handles parsing individual attributes from the cookie values. * * @param string $name Attribute name * @param string\|boolean $value Attribute value (string value, or true if empty/flag) * @return mixed Value if available, or null if the attribute value is invalid (and should be skipped) / protected function normalize_attribute($name, $value) { switch (strtolower($name)) { case 'expires': // Expiration parsing, as per RFC 6265 section 5.2.1 if (is_int($value)) { return $value; } $expiry_time = strtotime($value); if ($expiry_time === false) { return null; } return $expiry_time; case 'max-age': // Expiration parsing, as per RFC 6265 section 5.2.2 if (is_int($value)) { return $value; } // Check that we have a valid age if (!preg_match('/^-?\d+$/', $value)) { return null; } $delta_seconds = (int) $value; if ($delta_seconds <= 0) { $expiry_time = 0; } else { $expiry_time = $this->reference_time + $delta_seconds; } return $expiry_time; case 'domain': // Domains are not required as per RFC 6265 section 5.2.3 if (empty($value)) { return null; } // Domain normalization, as per RFC 6265 section 5.2.3 if ($value[0] === '.') { $value = substr($value, 1); } return $value; default: return $value; } } /* * Format a cookie for a Cookie header * * This is used when sending cookies to a server. * * @return string Cookie formatted for Cookie header / public function format_for_header() { return sprintf('%s=%s', $this->name, $this->value); } /* * Format a cookie for a Cookie header * * @codeCoverageIgnore * @deprecated Use {@see Requests_Cookie::format_for_header} * @return string / public function formatForHeader() { return $this->format_for_header(); } /* * Format a cookie for a Set-Cookie header * * This is used when sending cookies to clients. This isn't really * applicable to client-side usage, but might be handy for debugging. * * @return string Cookie formatted for Set-Cookie header / public function format_for_set_cookie() { $header_value = $this->format_for_header(); if (!empty($this->attributes)) { $parts = array(); foreach ($this->attributes as $key => $value) { // Ignore non-associative attributes if (is_numeric($key)) { $parts[] = $value; } else { $parts[] = sprintf('%s=%s', $key, $value); } } $header_value .= '; ' . implode('; ', $parts); } return $header_value; } /* * Format a cookie for a Set-Cookie header * * @codeCoverageIgnore * @deprecated Use {@see Requests_Cookie::format_for_set_cookie} * @return string / public function formatForSetCookie() { return $this->format_for_set_cookie(); } /* * Get the cookie value * * Attributes and other data can be accessed via methods. / public function __toString() { return $this->value; } /* * Parse a cookie string into a cookie object * * Based on Mozilla's parsing code in Firefox and related projects, which * is an intentional deviation from RFC 2109 and RFC 2616. RFC 6265 * specifies some of this handling, but not in a thorough manner. * * @param string Cookie header value (from a Set-Cookie header) * @return Requests_Cookie Parsed cookie object / public static function parse($string, $name = '', $reference_time = null) { $parts = explode(';', $string); $kvparts = array_shift($parts); if (!empty($name)) { $value = $string; } elseif (strpos($kvparts, '=') === false) { // Some sites might only have a value without the equals separator. // Deviate from RFC 6265 and pretend it was actually a blank name // (`=foo`) // // https://bugzilla.mozilla.org/show_bug.cgi?id=169091 $name = ''; $value = $kvparts; } else { list($name, $value) = explode('=', $kvparts, 2); } $name = trim($name); $value = trim($value); // Attribute key are handled case-insensitively $attributes = new Requests_Utility_CaseInsensitiveDictionary(); if (!empty($parts)) { foreach ($parts as $part) { if (strpos($part, '=') === false) { $part_key = $part; $part_value = true; } else { list($part_key, $part_value) = explode('=', $part, 2); $part_value = trim($part_value); } $part_key = trim($part_key); $attributes[$part_key] = $part_value; } } return new Requests_Cookie($name, $value, $attributes, array(), $reference_time); } /* * Parse all Set-Cookie headers from request headers * * @param Requests_Response_Headers $headers Headers to parse from * @param Requests_IRI\|null $origin URI for comparing cookie origins * @param int\|null $time Reference time for expiration calculation * @return array / public static function parse_from_headers(Requests_Response_Headers $headers, Requests_IRI $origin = null, $time = null) { $cookie_headers = $headers->getValues('Set-Cookie'); if (empty($cookie_headers)) { return array(); } $cookies = array(); foreach ($cookie_headers as $header) { $parsed = self::parse($header, '', $time); // Default domain/path attributes if (empty($parsed->attributes['domain']) && !empty($origin)) { $parsed->attributes['domain'] = $origin->host; $parsed->flags['host-only'] = true; } else { $parsed->flags['host-only'] = false; } $path_is_valid = (!empty($parsed->attributes['path']) && $parsed->attributes['path'][0] === '/'); if (!$path_is_valid && !empty($origin)) { $path = $origin->path; // Default path normalization as per RFC 6265 section 5.1.4 if (substr($path, 0, 1) !== '/') { // If the uri-path is empty or if the first character of // the uri-path is not a %x2F ("/") character, output // %x2F ("/") and skip the remaining steps. $path = '/'; } elseif (substr_count($path, '/') === 1) { // If the uri-path contains no more than one %x2F ("/") // character, output %x2F ("/") and skip the remaining // step. $path = '/'; } else { // Output the characters of the uri-path from the first // character up to, but not including, the right-most // %x2F ("/"). $path = substr($path, 0, strrpos($path, '/')); } $parsed->attributes['path'] = $path; } // Reject invalid cookie domains if (!empty($origin) && !$parsed->domain_matches($origin->host)) { continue; } $cookies[$parsed->name] = $parsed; } return $cookies; } /* * Parse all Set-Cookie headers from request headers * * @codeCoverageIgnore * @deprecated Use {@see Requests_Cookie::parse_from_headers} * @return string */ public static function parseFromHeaders(Requests_Response_Headers $headers) { return self::parse_from_headers($headers); } } Back

Edit File : Cookie.php | Size : 12.66 KB

<?php
/**
 * Cookie storage object
 *
 * @package Requests
 * @subpackage Cookies
 */

/**
 * Cookie storage object
 *
 * @package Requests
 * @subpackage Cookies
 */
class Requests_Cookie {
	/**
	 * Cookie name.
	 *
	 * @var string
	 */
	public $name;

/**
	 * Cookie value.
	 *
	 * @var string
	 */
	public $value;

/**
	 * Cookie attributes
	 *
	 * Valid keys are (currently) path, domain, expires, max-age, secure and
	 * httponly.
	 *
	 * @var Requests_Utility_CaseInsensitiveDictionary|array Array-like object
	 */
	public $attributes = array();

/**
	 * Cookie flags
	 *
	 * Valid keys are (currently) creation, last-access, persistent and
	 * host-only.
	 *
	 * @var array
	 */
	public $flags = array();

/**
	 * Reference time for relative calculations
	 *
	 * This is used in place of `time()` when calculating Max-Age expiration and
	 * checking time validity.
	 *
	 * @var int
	 */
	public $reference_time = 0;

/**
	 * Create a new cookie object
	 *
	 * @param string $name
	 * @param string $value
	 * @param array|Requests_Utility_CaseInsensitiveDictionary $attributes Associative array of attribute data
	 */
	public function __construct($name, $value, $attributes = array(), $flags = array(), $reference_time = null) {
		$this->name = $name;
		$this->value = $value;
		$this->attributes = $attributes;
		$default_flags = array(
			'creation' => time(),
			'last-access' => time(),
			'persistent' => false,
			'host-only' => true,
		);
		$this->flags = array_merge($default_flags, $flags);

$this->reference_time = time();
		if ($reference_time !== null) {
			$this->reference_time = $reference_time;
		}

$this->normalize();
	}

/**
	 * Check if a cookie is expired.
	 *
	 * Checks the age against $this->reference_time to determine if the cookie
	 * is expired.
	 *
	 * @return boolean True if expired, false if time is valid.
	 */
	public function is_expired() {
		// RFC6265, s. 4.1.2.2:
		// If a cookie has both the Max-Age and the Expires attribute, the Max-
		// Age attribute has precedence and controls the expiration date of the
		// cookie.
		if (isset($this->attributes['max-age'])) {
			$max_age = $this->attributes['max-age'];
			return $max_age < $this->reference_time;
		}

if (isset($this->attributes['expires'])) {
			$expires = $this->attributes['expires'];
			return $expires < $this->reference_time;
		}

return false;
	}

/**
	 * Check if a cookie is valid for a given URI
	 *
	 * @param Requests_IRI $uri URI to check
	 * @return boolean Whether the cookie is valid for the given URI
	 */
	public function uri_matches(Requests_IRI $uri) {
		if (!$this->domain_matches($uri->host)) {
			return false;
		}

if (!$this->path_matches($uri->path)) {
			return false;
		}

return empty($this->attributes['secure']) || $uri->scheme === 'https';
	}

/**
	 * Check if a cookie is valid for a given domain
	 *
	 * @param string $string Domain to check
	 * @return boolean Whether the cookie is valid for the given domain
	 */
	public function domain_matches($string) {
		if (!isset($this->attributes['domain'])) {
			// Cookies created manually; cookies created by Requests will set
			// the domain to the requested domain
			return true;
		}

$domain_string = $this->attributes['domain'];
		if ($domain_string === $string) {
			// The domain string and the string are identical.
			return true;
		}

// If the cookie is marked as host-only and we don't have an exact
		// match, reject the cookie
		if ($this->flags['host-only'] === true) {
			return false;
		}

if (strlen($string) <= strlen($domain_string)) {
			// For obvious reasons, the string cannot be a suffix if the domain
			// is shorter than the domain string
			return false;
		}

if (substr($string, -1 * strlen($domain_string)) !== $domain_string) {
			// The domain string should be a suffix of the string.
			return false;
		}

$prefix = substr($string, 0, strlen($string) - strlen($domain_string));
		if (substr($prefix, -1) !== '.') {
			// The last character of the string that is not included in the
			// domain string should be a %x2E (".") character.
			return false;
		}

// The string should be a host name (i.e., not an IP address).
		return !preg_match('#^(.+\.)\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$#', $string);
	}

/**
	 * Check if a cookie is valid for a given path
	 *
	 * From the path-match check in RFC 6265 section 5.1.4
	 *
	 * @param string $request_path Path to check
	 * @return boolean Whether the cookie is valid for the given path
	 */
	public function path_matches($request_path) {
		if (empty($request_path)) {
			// Normalize empty path to root
			$request_path = '/';
		}

if (!isset($this->attributes['path'])) {
			// Cookies created manually; cookies created by Requests will set
			// the path to the requested path
			return true;
		}

$cookie_path = $this->attributes['path'];

if ($cookie_path === $request_path) {
			// The cookie-path and the request-path are identical.
			return true;
		}

if (strlen($request_path) > strlen($cookie_path) && substr($request_path, 0, strlen($cookie_path)) === $cookie_path) {
			if (substr($cookie_path, -1) === '/') {
				// The cookie-path is a prefix of the request-path, and the last
				// character of the cookie-path is %x2F ("/").
				return true;
			}

if (substr($request_path, strlen($cookie_path), 1) === '/') {
				// The cookie-path is a prefix of the request-path, and the
				// first character of the request-path that is not included in
				// the cookie-path is a %x2F ("/") character.
				return true;
			}
		}

return false;
	}

/**
	 * Normalize cookie and attributes
	 *
	 * @return boolean Whether the cookie was successfully normalized
	 */
	public function normalize() {
		foreach ($this->attributes as $key => $value) {
			$orig_value = $value;
			$value = $this->normalize_attribute($key, $value);
			if ($value === null) {
				unset($this->attributes[$key]);
				continue;
			}

if ($value !== $orig_value) {
				$this->attributes[$key] = $value;
			}
		}

return true;
	}

/**
	 * Parse an individual cookie attribute
	 *
	 * Handles parsing individual attributes from the cookie values.
	 *
	 * @param string $name Attribute name
	 * @param string|boolean $value Attribute value (string value, or true if empty/flag)
	 * @return mixed Value if available, or null if the attribute value is invalid (and should be skipped)
	 */
	protected function normalize_attribute($name, $value) {
		switch (strtolower($name)) {
			case 'expires':
				// Expiration parsing, as per RFC 6265 section 5.2.1
				if (is_int($value)) {
					return $value;
				}

$expiry_time = strtotime($value);
				if ($expiry_time === false) {
					return null;
				}

return $expiry_time;

case 'max-age':
				// Expiration parsing, as per RFC 6265 section 5.2.2
				if (is_int($value)) {
					return $value;
				}

// Check that we have a valid age
				if (!preg_match('/^-?\d+$/', $value)) {
					return null;
				}

$delta_seconds = (int) $value;
				if ($delta_seconds <= 0) {
					$expiry_time = 0;
				}
				else {
					$expiry_time = $this->reference_time + $delta_seconds;
				}

return $expiry_time;

case 'domain':
				// Domains are not required as per RFC 6265 section 5.2.3
				if (empty($value)) {
					return null;
				}

// Domain normalization, as per RFC 6265 section 5.2.3
				if ($value[0] === '.') {
					$value = substr($value, 1);
				}

return $value;

default:
				return $value;
		}
	}

/**
	 * Format a cookie for a Cookie header
	 *
	 * This is used when sending cookies to a server.
	 *
	 * @return string Cookie formatted for Cookie header
	 */
	public function format_for_header() {
		return sprintf('%s=%s', $this->name, $this->value);
	}

/**
	 * Format a cookie for a Cookie header
	 *
	 * @codeCoverageIgnore
	 * @deprecated Use {@see Requests_Cookie::format_for_header}
	 * @return string
	 */
	public function formatForHeader() {
		return $this->format_for_header();
	}

/**
	 * Format a cookie for a Set-Cookie header
	 *
	 * This is used when sending cookies to clients. This isn't really
	 * applicable to client-side usage, but might be handy for debugging.
	 *
	 * @return string Cookie formatted for Set-Cookie header
	 */
	public function format_for_set_cookie() {
		$header_value = $this->format_for_header();
		if (!empty($this->attributes)) {
			$parts = array();
			foreach ($this->attributes as $key => $value) {
				// Ignore non-associative attributes
				if (is_numeric($key)) {
					$parts[] = $value;
				}
				else {
					$parts[] = sprintf('%s=%s', $key, $value);
				}
			}

$header_value .= '; ' . implode('; ', $parts);
		}
		return $header_value;
	}

/**
	 * Format a cookie for a Set-Cookie header
	 *
	 * @codeCoverageIgnore
	 * @deprecated Use {@see Requests_Cookie::format_for_set_cookie}
	 * @return string
	 */
	public function formatForSetCookie() {
		return $this->format_for_set_cookie();
	}

/**
	 * Get the cookie value
	 *
	 * Attributes and other data can be accessed via methods.
	 */
	public function __toString() {
		return $this->value;
	}

/**
	 * Parse a cookie string into a cookie object
	 *
	 * Based on Mozilla's parsing code in Firefox and related projects, which
	 * is an intentional deviation from RFC 2109 and RFC 2616. RFC 6265
	 * specifies some of this handling, but not in a thorough manner.
	 *
	 * @param string Cookie header value (from a Set-Cookie header)
	 * @return Requests_Cookie Parsed cookie object
	 */
	public static function parse($string, $name = '', $reference_time = null) {
		$parts = explode(';', $string);
		$kvparts = array_shift($parts);

if (!empty($name)) {
			$value = $string;
		}
		elseif (strpos($kvparts, '=') === false) {
			// Some sites might only have a value without the equals separator.
			// Deviate from RFC 6265 and pretend it was actually a blank name
			// (`=foo`)
			//
			// https://bugzilla.mozilla.org/show_bug.cgi?id=169091
			$name = '';
			$value = $kvparts;
		}
		else {
			list($name, $value) = explode('=', $kvparts, 2);
		}
		$name = trim($name);
		$value = trim($value);

// Attribute key are handled case-insensitively
		$attributes = new Requests_Utility_CaseInsensitiveDictionary();

if (!empty($parts)) {
			foreach ($parts as $part) {
				if (strpos($part, '=') === false) {
					$part_key = $part;
					$part_value = true;
				}
				else {
					list($part_key, $part_value) = explode('=', $part, 2);
					$part_value = trim($part_value);
				}

$part_key = trim($part_key);
				$attributes[$part_key] = $part_value;
			}
		}

return new Requests_Cookie($name, $value, $attributes, array(), $reference_time);
	}

/**
	 * Parse all Set-Cookie headers from request headers
	 *
	 * @param Requests_Response_Headers $headers Headers to parse from
	 * @param Requests_IRI|null $origin URI for comparing cookie origins
	 * @param int|null $time Reference time for expiration calculation
	 * @return array
	 */
	public static function parse_from_headers(Requests_Response_Headers $headers, Requests_IRI $origin = null, $time = null) {
		$cookie_headers = $headers->getValues('Set-Cookie');
		if (empty($cookie_headers)) {
			return array();
		}

$cookies = array();
		foreach ($cookie_headers as $header) {
			$parsed = self::parse($header, '', $time);

// Default domain/path attributes
			if (empty($parsed->attributes['domain']) && !empty($origin)) {
				$parsed->attributes['domain'] = $origin->host;
				$parsed->flags['host-only'] = true;
			}
			else {
				$parsed->flags['host-only'] = false;
			}

$path_is_valid = (!empty($parsed->attributes['path']) && $parsed->attributes['path'][0] === '/');
			if (!$path_is_valid && !empty($origin)) {
				$path = $origin->path;

// Default path normalization as per RFC 6265 section 5.1.4
				if (substr($path, 0, 1) !== '/') {
					// If the uri-path is empty or if the first character of
					// the uri-path is not a %x2F ("/") character, output
					// %x2F ("/") and skip the remaining steps.
					$path = '/';
				}
				elseif (substr_count($path, '/') === 1) {
					// If the uri-path contains no more than one %x2F ("/")
					// character, output %x2F ("/") and skip the remaining
					// step.
					$path = '/';
				}
				else {
					// Output the characters of the uri-path from the first
					// character up to, but not including, the right-most
					// %x2F ("/").
					$path = substr($path, 0, strrpos($path, '/'));
				}
				$parsed->attributes['path'] = $path;
			}

// Reject invalid cookie domains
			if (!empty($origin) && !$parsed->domain_matches($origin->host)) {
				continue;
			}

$cookies[$parsed->name] = $parsed;
		}

return $cookies;
	}

/**
	 * Parse all Set-Cookie headers from request headers
	 *
	 * @codeCoverageIgnore
	 * @deprecated Use {@see Requests_Cookie::parse_from_headers}
	 * @return string
	 */
	public static function parseFromHeaders(Requests_Response_Headers $headers) {
		return self::parse_from_headers($headers);
	}
}

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