Adding upstream version 6.4.3+dfsg1.upstream/6.4.3+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 376 insertions, 0 deletions

diff --git a/wp-content/plugins/akismet/_inc/akismet-frontend.js b/wp-content/plugins/akismet/_inc/akismet-frontend.js
new file mode 100644
index 0000000..40ebfe6
--- /dev/null
+++ b/wp-content/plugins/akismet/_inc/akismet-frontend.js
@@ -0,0 +1,376 @@
+/**
+ * Observe how the user enters content into the comment form in order to determine whether it's a bot or not.
+ *
+ * Note that no actual input is being saved here, only counts and timings between events.
+ */
+
+( function() {
+	// Passive event listeners are guaranteed to never call e.preventDefault(),
+	// but they're not supported in all browsers.  Use this feature detection
+	// to determine whether they're available for use.
+	var supportsPassive = false;
+
+	try {
+		var opts = Object.defineProperty( {}, 'passive', {
+			get : function() {
+				supportsPassive = true;
+			}
+		} );
+
+		window.addEventListener( 'testPassive', null, opts );
+		window.removeEventListener( 'testPassive', null, opts );
+	} catch ( e ) {}
+
+	function init() {
+		var input_begin = '';
+
+		var keydowns = {};
+		var lastKeyup = null;
+		var lastKeydown = null;
+		var keypresses = [];
+
+		var modifierKeys = [];
+		var correctionKeys = [];
+
+		var lastMouseup = null;
+		var lastMousedown = null;
+		var mouseclicks = [];
+
+		var mousemoveTimer = null;
+		var lastMousemoveX = null;
+		var lastMousemoveY = null;
+		var mousemoveStart = null;
+		var mousemoves = [];
+
+		var touchmoveCountTimer = null;
+		var touchmoveCount = 0;
+
+		var lastTouchEnd = null;
+		var lastTouchStart = null;
+		var touchEvents = [];
+
+		var scrollCountTimer = null;
+		var scrollCount = 0;
+
+		var correctionKeyCodes = [ 'Backspace', 'Delete', 'ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'Home', 'End', 'PageUp', 'PageDown' ];
+		var modifierKeyCodes = [ 'Shift', 'CapsLock' ];
+
+		var forms = document.querySelectorAll( 'form[method=post]' );
+
+		for ( var i = 0; i < forms.length; i++ ) {
+			var form = forms[i];
+
+			var formAction = form.getAttribute( 'action' );
+
+			// Ignore forms that POST directly to other domains; these could be things like payment forms.
+			if ( formAction ) {
+				// Check that the form is posting to an external URL, not a path.
+				if ( formAction.indexOf( 'http://' ) == 0 || formAction.indexOf( 'https://' ) == 0 ) {
+					if ( formAction.indexOf( 'http://' + window.location.hostname + '/' ) != 0 && formAction.indexOf( 'https://' + window.location.hostname + '/' ) != 0 ) {
+						continue;
+					}
+				}
+			}
+
+			form.addEventListener( 'submit', function () {
+				var ak_bkp = prepare_timestamp_array_for_request( keypresses );
+				var ak_bmc = prepare_timestamp_array_for_request( mouseclicks );
+				var ak_bte = prepare_timestamp_array_for_request( touchEvents );
+				var ak_bmm = prepare_timestamp_array_for_request( mousemoves );
+
+				var input_fields = {
+					// When did the user begin entering any input?
+					'bib': input_begin,
+
+					// When was the form submitted?
+					'bfs': Date.now(),
+
+					// How many keypresses did they make?
+					'bkpc': keypresses.length,
+
+					// How quickly did they press a sample of keys, and how long between them?
+					'bkp': ak_bkp,
+
+					// How quickly did they click the mouse, and how long between clicks?
+					'bmc': ak_bmc,
+
+					// How many mouseclicks did they make?
+					'bmcc': mouseclicks.length,
+
+					// When did they press modifier keys (like Shift or Capslock)?
+					'bmk': modifierKeys.join( ';' ),
+
+					// When did they correct themselves? e.g., press Backspace, or use the arrow keys to move the cursor back
+					'bck': correctionKeys.join( ';' ),
+
+					// How many times did they move the mouse?
+					'bmmc': mousemoves.length,
+
+					// How many times did they move around using a touchscreen?
+					'btmc': touchmoveCount,
+
+					// How many times did they scroll?
+					'bsc': scrollCount,
+
+					// How quickly did they perform touch events, and how long between them?
+					'bte': ak_bte,
+
+					// How many touch events were there?
+					'btec' : touchEvents.length,
+
+					// How quickly did they move the mouse, and how long between moves?
+					'bmm' : ak_bmm
+				};
+
+				var akismet_field_prefix = 'ak_';
+
+				if ( this.getElementsByClassName ) {
+					// Check to see if we've used an alternate field name prefix. We store this as an attribute of the container around some of the Akismet fields.
+					var possible_akismet_containers = this.getElementsByClassName( 'akismet-fields-container' );
+
+					for ( var containerIndex = 0; containerIndex < possible_akismet_containers.length; containerIndex++ ) {
+						var container = possible_akismet_containers.item( containerIndex );
+
+						if ( container.getAttribute( 'data-prefix' ) ) {
+							akismet_field_prefix = container.getAttribute( 'data-prefix' );
+							break;
+						}
+					}
+				}
+
+				for ( var field_name in input_fields ) {
+					var field = document.createElement( 'input' );
+					field.setAttribute( 'type', 'hidden' );
+					field.setAttribute( 'name', akismet_field_prefix + field_name );
+					field.setAttribute( 'value', input_fields[ field_name ] );
+					this.appendChild( field );
+				}
+			}, supportsPassive ? { passive: true } : false  );
+
+			form.addEventListener( 'keydown', function ( e ) {
+				// If you hold a key down, some browsers send multiple keydown events in a row.
+				// Ignore any keydown events for a key that hasn't come back up yet.
+				if ( e.key in keydowns ) {
+					return;
+				}
+
+				var keydownTime = ( new Date() ).getTime();
+				keydowns[ e.key ] = [ keydownTime ];
+
+				if ( ! input_begin ) {
+					input_begin = keydownTime;
+				}
+
+				// In some situations, we don't want to record an interval since the last keypress -- for example,
+				// on the first keypress, or on a keypress after focus has changed to another element. Normally,
+				// we want to record the time between the last keyup and this keydown. But if they press a
+				// key while already pressing a key, we want to record the time between the two keydowns.
+
+				var lastKeyEvent = Math.max( lastKeydown, lastKeyup );
+
+				if ( lastKeyEvent ) {
+					keydowns[ e.key ].push( keydownTime - lastKeyEvent );
+				}
+
+				lastKeydown = keydownTime;
+			}, supportsPassive ? { passive: true } : false  );
+
+			form.addEventListener( 'keyup', function ( e ) {
+				if ( ! ( e.key in keydowns ) ) {
+					// This key was pressed before this script was loaded, or a mouseclick happened during the keypress, or...
+					return;
+				}
+
+				var keyupTime = ( new Date() ).getTime();
+
+				if ( 'TEXTAREA' === e.target.nodeName || 'INPUT' === e.target.nodeName ) {
+					if ( -1 !== modifierKeyCodes.indexOf( e.key ) ) {
+						modifierKeys.push( keypresses.length - 1 );
+					} else if ( -1 !== correctionKeyCodes.indexOf( e.key ) ) {
+						correctionKeys.push( keypresses.length - 1 );
+					} else {
+						// ^ Don't record timings for keys like Shift or backspace, since they
+						// typically get held down for longer than regular typing.
+
+						var keydownTime = keydowns[ e.key ][0];
+
+						var keypress = [];
+
+						// Keypress duration.
+						keypress.push( keyupTime - keydownTime );
+
+						// Amount of time between this keypress and the previous keypress.
+						if ( keydowns[ e.key ].length > 1 ) {
+							keypress.push( keydowns[ e.key ][1] );
+						}
+
+						keypresses.push( keypress );
+					}
+				}
+
+				delete keydowns[ e.key ];
+
+				lastKeyup = keyupTime;
+			}, supportsPassive ? { passive: true } : false  );
+
+			form.addEventListener( "focusin", function ( e ) {
+				lastKeydown = null;
+				lastKeyup = null;
+				keydowns = {};
+			}, supportsPassive ? { passive: true } : false  );
+
+			form.addEventListener( "focusout", function ( e ) {
+				lastKeydown = null;
+				lastKeyup = null;
+				keydowns = {};
+			}, supportsPassive ? { passive: true } : false  );
+		}
+
+		document.addEventListener( 'mousedown', function ( e ) {
+			lastMousedown = ( new Date() ).getTime();
+		}, supportsPassive ? { passive: true } : false  );
+
+		document.addEventListener( 'mouseup', function ( e ) {
+			if ( ! lastMousedown ) {
+				// If the mousedown happened before this script was loaded, but the mouseup happened after...
+				return;
+			}
+
+			var now = ( new Date() ).getTime();
+
+			var mouseclick = [];
+			mouseclick.push( now - lastMousedown );
+
+			if ( lastMouseup ) {
+				mouseclick.push( lastMousedown - lastMouseup );
+			}
+
+			mouseclicks.push( mouseclick );
+
+			lastMouseup = now;
+
+			// If the mouse has been clicked, don't record this time as an interval between keypresses.
+			lastKeydown = null;
+			lastKeyup = null;
+			keydowns = {};
+		}, supportsPassive ? { passive: true } : false  );
+
+		document.addEventListener( 'mousemove', function ( e ) {
+			if ( mousemoveTimer ) {
+				clearTimeout( mousemoveTimer );
+				mousemoveTimer = null;
+			}
+			else {
+				mousemoveStart = ( new Date() ).getTime();
+				lastMousemoveX = e.offsetX;
+				lastMousemoveY = e.offsetY;
+			}
+
+			mousemoveTimer = setTimeout( function ( theEvent, originalMousemoveStart ) {
+				var now = ( new Date() ).getTime() - 500; // To account for the timer delay.
+
+				var mousemove = [];
+				mousemove.push( now - originalMousemoveStart );
+				mousemove.push(
+					Math.round(
+						Math.sqrt(
+							Math.pow( theEvent.offsetX - lastMousemoveX, 2 ) +
+							Math.pow( theEvent.offsetY - lastMousemoveY, 2 )
+						)
+					)
+				);
+
+				if ( mousemove[1] > 0 ) {
+					// If there was no measurable distance, then it wasn't really a move.
+					mousemoves.push( mousemove );
+				}
+
+				mousemoveStart = null;
+				mousemoveTimer = null;
+			}, 500, e, mousemoveStart );
+		}, supportsPassive ? { passive: true } : false  );
+
+		document.addEventListener( 'touchmove', function ( e ) {
+			if ( touchmoveCountTimer ) {
+				clearTimeout( touchmoveCountTimer );
+			}
+
+			touchmoveCountTimer = setTimeout( function () {
+				touchmoveCount++;
+			}, 500 );
+		}, supportsPassive ? { passive: true } : false );
+
+		document.addEventListener( 'touchstart', function ( e ) {
+			lastTouchStart = ( new Date() ).getTime();
+		}, supportsPassive ? { passive: true } : false );
+
+		document.addEventListener( 'touchend', function ( e ) {
+			if ( ! lastTouchStart ) {
+				// If the touchstart happened before this script was loaded, but the touchend happened after...
+				return;
+			}
+
+			var now = ( new Date() ).getTime();
+
+			var touchEvent = [];
+			touchEvent.push( now - lastTouchStart );
+
+			if ( lastTouchEnd ) {
+				touchEvent.push( lastTouchStart - lastTouchEnd );
+			}
+
+			touchEvents.push( touchEvent );
+
+			lastTouchEnd = now;
+
+			// Don't record this time as an interval between keypresses.
+			lastKeydown = null;
+			lastKeyup = null;
+			keydowns = {};
+		}, supportsPassive ? { passive: true } : false );
+
+		document.addEventListener( 'scroll', function ( e ) {
+			if ( scrollCountTimer ) {
+				clearTimeout( scrollCountTimer );
+			}
+
+			scrollCountTimer = setTimeout( function () {
+				scrollCount++;
+			}, 500 );
+		}, supportsPassive ? { passive: true } : false );
+	}
+
+	/**
+	 * For the timestamp data that is collected, don't send more than `limit` data points in the request.
+	 * Choose a random slice and send those.
+	 */
+	function prepare_timestamp_array_for_request( a, limit ) {
+		if ( ! limit ) {
+			limit = 100;
+		}
+
+		var rv = '';
+
+		if ( a.length > 0 ) {
+			var random_starting_point = Math.max( 0, Math.floor( Math.random() * a.length - limit ) );
+
+			for ( var i = 0; i < limit && i < a.length; i++ ) {
+				rv += a[ random_starting_point + i ][0];
+
+				if ( a[ random_starting_point + i ].length >= 2 ) {
+					rv += "," + a[ random_starting_point + i ][1];
+				}
+
+				rv += ";";
+			}
+		}
+
+		return rv;
+	}
+
+	if ( document.readyState !== 'loading' ) {
+		init();
+	} else {
+		document.addEventListener( 'DOMContentLoaded', init );
+	}
+})();
\ No newline at end of file